diff --git a/.circleci/config.yml b/.circleci/config.yml
index 9fa2e06e3..cd14797ec 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -5,7 +5,7 @@ jobs:
       - image: ossrs/srs:dev
     steps:
       - checkout
-      - run: cd trunk && ./configure && make
+      - run: cd trunk && ./configure --without-rtc && make && ./configure && make
   test:
     docker:
       - image: ossrs/srs:dev
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/.gitignore b/trunk/3rdparty/ffmpeg-4.2-fit/.gitignore
new file mode 100644
index 000000000..9ce1b69cd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/.gitignore
@@ -0,0 +1,18 @@
+# Ignore files.
+*.d
+*.pc
+*.o
+config.asm
+config.h
+_release
+doc
+ffbuild/config.fate
+ffbuild/config.log
+ffbuild/config.mak
+ffbuild/config.sh
+ffbuild/.config
+libavutil/lib.version
+libavcodec/libavcodec.version
+libavutil/libavutil.version
+libswresample/libswresample.version
+libavutil/ffversion.h
\ No newline at end of file
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/.version b/trunk/3rdparty/ffmpeg-4.2-fit/.version
new file mode 100644
index 000000000..e69de29bb
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/Makefile b/trunk/3rdparty/ffmpeg-4.2-fit/Makefile
new file mode 100644
index 000000000..8bf04c169
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/Makefile
@@ -0,0 +1,169 @@
+MAIN_MAKEFILE=1
+include ffbuild/config.mak
+
+vpath %.c    $(SRC_PATH)
+vpath %.cpp  $(SRC_PATH)
+vpath %.h    $(SRC_PATH)
+vpath %.inc  $(SRC_PATH)
+vpath %.m    $(SRC_PATH)
+vpath %.S    $(SRC_PATH)
+vpath %.asm  $(SRC_PATH)
+vpath %.rc   $(SRC_PATH)
+vpath %.v    $(SRC_PATH)
+vpath %.texi $(SRC_PATH)
+vpath %.cu   $(SRC_PATH)
+vpath %.ptx  $(SRC_PATH)
+vpath %/fate_config.sh.template $(SRC_PATH)
+
+TESTTOOLS   = audiogen videogen rotozoom tiny_psnr tiny_ssim base64 audiomatch
+HOSTPROGS  := $(TESTTOOLS:%=tests/%) doc/print_options
+
+# $(FFLIBS-yes) needs to be in linking order
+FFLIBS-$(CONFIG_AVDEVICE)   += avdevice
+FFLIBS-$(CONFIG_AVFILTER)   += avfilter
+FFLIBS-$(CONFIG_AVFORMAT)   += avformat
+FFLIBS-$(CONFIG_AVCODEC)    += avcodec
+FFLIBS-$(CONFIG_AVRESAMPLE) += avresample
+FFLIBS-$(CONFIG_POSTPROC)   += postproc
+FFLIBS-$(CONFIG_SWRESAMPLE) += swresample
+FFLIBS-$(CONFIG_SWSCALE)    += swscale
+
+FFLIBS := avutil
+
+DATA_FILES := $(wildcard $(SRC_PATH)/presets/*.ffpreset) $(SRC_PATH)/doc/ffprobe.xsd
+
+SKIPHEADERS = compat/w32pthreads.h
+
+# first so "all" becomes default target
+all: all-yes
+
+include $(SRC_PATH)/ffbuild/common.mak
+
+FF_EXTRALIBS := $(FFEXTRALIBS)
+FF_DEP_LIBS  := $(DEP_LIBS)
+FF_STATIC_DEP_LIBS := $(STATIC_DEP_LIBS)
+
+$(TOOLS): %$(EXESUF): %.o
+	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(EXTRALIBS-$(*F)) $(EXTRALIBS) $(ELIBS)
+
+target_dec_%_fuzzer$(EXESUF): target_dec_%_fuzzer.o $(FF_DEP_LIBS)
+	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)
+
+tools/target_dem_fuzzer$(EXESUF): tools/target_dem_fuzzer.o $(FF_DEP_LIBS)
+	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH)
+
+tools/sofa2wavs$(EXESUF): ELIBS = $(FF_EXTRALIBS)
+tools/uncoded_frame$(EXESUF): $(FF_DEP_LIBS)
+tools/uncoded_frame$(EXESUF): ELIBS = $(FF_EXTRALIBS)
+tools/target_dec_%_fuzzer$(EXESUF): $(FF_DEP_LIBS)
+
+CONFIGURABLE_COMPONENTS =                                           \
+    $(wildcard $(FFLIBS:%=$(SRC_PATH)/lib%/all*.c))                 \
+    $(SRC_PATH)/libavcodec/bitstream_filters.c                      \
+    $(SRC_PATH)/libavcodec/parsers.c                                \
+    $(SRC_PATH)/libavformat/protocols.c                             \
+
+config.h: ffbuild/.config
+ffbuild/.config: $(CONFIGURABLE_COMPONENTS)
+	@-tput bold 2>/dev/null
+	@-printf '\nWARNING: $(?) newer than config.h, rerun configure\n\n'
+	@-tput sgr0 2>/dev/null
+
+SUBDIR_VARS := CLEANFILES FFLIBS HOSTPROGS TESTPROGS TOOLS               \
+               HEADERS ARCH_HEADERS BUILT_HEADERS SKIPHEADERS            \
+               ARMV5TE-OBJS ARMV6-OBJS ARMV8-OBJS VFP-OBJS NEON-OBJS     \
+               ALTIVEC-OBJS VSX-OBJS MMX-OBJS X86ASM-OBJS                \
+               MIPSFPU-OBJS MIPSDSPR2-OBJS MIPSDSP-OBJS MSA-OBJS         \
+               MMI-OBJS OBJS SLIBOBJS HOSTOBJS TESTOBJS
+
+define RESET
+$(1) :=
+$(1)-yes :=
+endef
+
+define DOSUBDIR
+$(foreach V,$(SUBDIR_VARS),$(eval $(call RESET,$(V))))
+SUBDIR := $(1)/
+include $(SRC_PATH)/$(1)/Makefile
+-include $(SRC_PATH)/$(1)/$(ARCH)/Makefile
+-include $(SRC_PATH)/$(1)/$(INTRINSICS)/Makefile
+include $(SRC_PATH)/ffbuild/library.mak
+endef
+
+$(foreach D,$(FFLIBS),$(eval $(call DOSUBDIR,lib$(D))))
+
+libavcodec/utils.o libavformat/utils.o libavdevice/avdevice.o libavfilter/avfilter.o libavutil/utils.o libpostproc/postprocess.o libswresample/swresample.o libswscale/utils.o : libavutil/ffversion.h
+
+$(PROGS): %$(PROGSSUF)$(EXESUF): %$(PROGSSUF)_g$(EXESUF)
+ifeq ($(STRIPTYPE),direct)
+	$(STRIP) -o $@ $<
+else
+	$(CP) $< $@
+	$(STRIP) $@
+endif
+
+%$(PROGSSUF)_g$(EXESUF): $(FF_DEP_LIBS)
+	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS)
+
+VERSION_SH  = $(SRC_PATH)/ffbuild/version.sh
+GIT_LOG     = $(SRC_PATH)/.git/logs/HEAD
+
+.version: $(wildcard $(GIT_LOG)) $(VERSION_SH) ffbuild/config.mak
+.version: M=@
+
+libavutil/ffversion.h .version:
+	$(M)$(VERSION_SH) $(SRC_PATH) libavutil/ffversion.h $(EXTRA_VERSION)
+	$(Q)touch .version
+
+# force version.sh to run whenever version might have changed
+-include .version
+
+install: install-libs install-headers
+
+install-libs: install-libs-yes
+
+install-data: $(DATA_FILES)
+	$(Q)mkdir -p "$(DATADIR)"
+	$(INSTALL) -m 644 $(DATA_FILES) "$(DATADIR)"
+
+uninstall: uninstall-data uninstall-headers uninstall-libs uninstall-pkgconfig
+
+uninstall-data:
+	$(RM) -r "$(DATADIR)"
+
+clean::
+	$(RM) $(CLEANSUFFIXES)
+	$(RM) $(addprefix compat/,$(CLEANSUFFIXES)) $(addprefix compat/*/,$(CLEANSUFFIXES)) $(addprefix compat/*/*/,$(CLEANSUFFIXES))
+	$(RM) -r coverage-html
+	$(RM) -rf coverage.info coverage.info.in lcov
+
+distclean:: clean
+	$(RM) .version avversion.h config.asm config.h mapfile  \
+		ffbuild/.config ffbuild/config.* libavutil/avconfig.h \
+		version.h libavutil/ffversion.h libavcodec/codec_names.h \
+		libavcodec/bsf_list.c libavformat/protocol_list.c \
+		libavcodec/codec_list.c libavcodec/parser_list.c \
+		libavformat/muxer_list.c libavformat/demuxer_list.c
+ifeq ($(SRC_LINK),src)
+	$(RM) src
+endif
+
+config:
+	$(SRC_PATH)/configure $(value FFMPEG_CONFIGURATION)
+
+build: all alltools testprogs
+check: all alltools testprogs fate
+
+$(sort $(OUTDIRS)):
+	$(Q)mkdir -p $@
+
+# Dummy rule to stop make trying to rebuild removed or renamed headers
+%.h:
+	@:
+
+# Disable suffix rules.  Most of the builtin rules are suffix rules,
+# so this saves some time on slow systems.
+.SUFFIXES:
+
+.PHONY: all all-yes alltools build check config testprogs
+.PHONY: *clean install* uninstall*
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/compat/atomics/gcc/stdatomic.h b/trunk/3rdparty/ffmpeg-4.2-fit/compat/atomics/gcc/stdatomic.h
new file mode 100644
index 000000000..e13ed0e06
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/compat/atomics/gcc/stdatomic.h
@@ -0,0 +1,173 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * based on vlc_atomic.h from VLC
+ * Copyright (C) 2010 Rémi Denis-Courmont
+ */
+
+#ifndef COMPAT_ATOMICS_GCC_STDATOMIC_H
+#define COMPAT_ATOMICS_GCC_STDATOMIC_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define ATOMIC_FLAG_INIT 0
+
+#define ATOMIC_VAR_INIT(value) (value)
+
+#define atomic_init(obj, value) \
+do {                            \
+    *(obj) = (value);           \
+} while(0)
+
+#define kill_dependency(y) ((void)0)
+
+#define atomic_thread_fence(order) \
+    __sync_synchronize()
+
+#define atomic_signal_fence(order) \
+    ((void)0)
+
+#define atomic_is_lock_free(obj) 0
+
+typedef         _Bool      atomic_flag;
+typedef         _Bool      atomic_bool;
+typedef          char      atomic_char;
+typedef   signed char      atomic_schar;
+typedef unsigned char      atomic_uchar;
+typedef          short     atomic_short;
+typedef unsigned short     atomic_ushort;
+typedef          int       atomic_int;
+typedef unsigned int       atomic_uint;
+typedef          long      atomic_long;
+typedef unsigned long      atomic_ulong;
+typedef          long long atomic_llong;
+typedef unsigned long long atomic_ullong;
+typedef          wchar_t   atomic_wchar_t;
+typedef       int_least8_t atomic_int_least8_t;
+typedef      uint_least8_t atomic_uint_least8_t;
+typedef      int_least16_t atomic_int_least16_t;
+typedef     uint_least16_t atomic_uint_least16_t;
+typedef      int_least32_t atomic_int_least32_t;
+typedef     uint_least32_t atomic_uint_least32_t;
+typedef      int_least64_t atomic_int_least64_t;
+typedef     uint_least64_t atomic_uint_least64_t;
+typedef       int_fast8_t atomic_int_fast8_t;
+typedef      uint_fast8_t atomic_uint_fast8_t;
+typedef      int_fast16_t atomic_int_fast16_t;
+typedef     uint_fast16_t atomic_uint_fast16_t;
+typedef      int_fast32_t atomic_int_fast32_t;
+typedef     uint_fast32_t atomic_uint_fast32_t;
+typedef      int_fast64_t atomic_int_fast64_t;
+typedef     uint_fast64_t atomic_uint_fast64_t;
+typedef          intptr_t atomic_intptr_t;
+typedef         uintptr_t atomic_uintptr_t;
+typedef            size_t atomic_size_t;
+typedef         ptrdiff_t atomic_ptrdiff_t;
+typedef          intmax_t atomic_intmax_t;
+typedef         uintmax_t atomic_uintmax_t;
+
+#define atomic_store(object, desired)   \
+do {                                    \
+    *(object) = (desired);              \
+    __sync_synchronize();               \
+} while (0)
+
+#define atomic_store_explicit(object, desired, order) \
+    atomic_store(object, desired)
+
+#define atomic_load(object) \
+    (__sync_synchronize(), *(object))
+
+#define atomic_load_explicit(object, order) \
+    atomic_load(object)
+
+#define atomic_exchange(object, desired)                            \
+({                                                                  \
+    __typeof__(object) _obj = (object);                             \
+    __typeof__(*object) _old;                                       \
+    do                                                              \
+        _old = atomic_load(_obj);                                   \
+    while (!__sync_bool_compare_and_swap(_obj, _old, (desired)));   \
+    _old;                                                           \
+})
+
+#define atomic_exchange_explicit(object, desired, order) \
+    atomic_exchange(object, desired)
+
+#define atomic_compare_exchange_strong(object, expected, desired)   \
+({                                                                  \
+    __typeof__(object) _exp = (expected);                           \
+    __typeof__(*object) _old = *_exp;                               \
+    *_exp = __sync_val_compare_and_swap((object), _old, (desired)); \
+    *_exp == _old;                                                  \
+})
+
+#define atomic_compare_exchange_strong_explicit(object, expected, desired, success, failure) \
+    atomic_compare_exchange_strong(object, expected, desired)
+
+#define atomic_compare_exchange_weak(object, expected, desired) \
+    atomic_compare_exchange_strong(object, expected, desired)
+
+#define atomic_compare_exchange_weak_explicit(object, expected, desired, success, failure) \
+    atomic_compare_exchange_weak(object, expected, desired)
+
+#define atomic_fetch_add(object, operand) \
+    __sync_fetch_and_add(object, operand)
+
+#define atomic_fetch_add_explicit(object, operand, order) \
+    atomic_fetch_add(object, operand)
+
+#define atomic_fetch_sub(object, operand) \
+    __sync_fetch_and_sub(object, operand)
+
+#define atomic_fetch_sub_explicit(object, operand, order) \
+    atomic_fetch_sub(object, operand)
+
+#define atomic_fetch_or(object, operand) \
+    __sync_fetch_and_or(object, operand)
+
+#define atomic_fetch_or_explicit(object, operand, order) \
+    atomic_fetch_or(object, operand)
+
+#define atomic_fetch_xor(object, operand) \
+    __sync_fetch_and_xor(object, operand)
+
+#define atomic_fetch_xor_explicit(object, operand, order) \
+    atomic_fetch_xor(object, operand)
+
+#define atomic_fetch_and(object, operand) \
+    __sync_fetch_and_and(object, operand)
+
+#define atomic_fetch_and_explicit(object, operand, order) \
+    atomic_fetch_and(object, operand)
+
+#define atomic_flag_test_and_set(object) \
+    atomic_exchange(object, 1)
+
+#define atomic_flag_test_and_set_explicit(object, order) \
+    atomic_flag_test_and_set(object)
+
+#define atomic_flag_clear(object) \
+    atomic_store(object, 0)
+
+#define atomic_flag_clear_explicit(object, order) \
+    atomic_flag_clear(object)
+
+#endif /* COMPAT_ATOMICS_GCC_STDATOMIC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/compat/va_copy.h b/trunk/3rdparty/ffmpeg-4.2-fit/compat/va_copy.h
new file mode 100644
index 000000000..a40bbe663
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/compat/va_copy.h
@@ -0,0 +1,34 @@
+/*
+ * MSVC Compatible va_copy macro
+ * Copyright (c) 2012 Derek Buitenhuis
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef COMPAT_VA_COPY_H
+#define COMPAT_VA_COPY_H
+
+#include <stdarg.h>
+
+#if !defined(va_copy) && defined(_MSC_VER)
+#define va_copy(dst, src) ((dst) = (src))
+#endif
+#if !defined(va_copy) && defined(__GNUC__) && __GNUC__ < 3
+#define va_copy(dst, src) __va_copy(dst, src)
+#endif
+
+#endif /* COMPAT_VA_COPY_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/configure b/trunk/3rdparty/ffmpeg-4.2-fit/configure
new file mode 100755
index 000000000..b950783be
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/configure
@@ -0,0 +1,7531 @@
+#!/bin/sh
+#
+# FFmpeg configure script
+#
+# Copyright (c) 2000-2002 Fabrice Bellard
+# Copyright (c) 2005-2008 Diego Biurrun
+# Copyright (c) 2005-2008 Mans Rullgard
+#
+
+# Prevent locale nonsense from breaking basic text processing.
+LC_ALL=C
+export LC_ALL
+
+# make sure we are running under a compatible shell
+# try to make this part work with most shells
+
+try_exec(){
+    echo "Trying shell $1"
+    type "$1" > /dev/null 2>&1 && exec "$@"
+}
+
+unset foo
+(: ${foo%%bar}) 2> /dev/null
+E1="$?"
+
+(: ${foo?}) 2> /dev/null
+E2="$?"
+
+if test "$E1" != 0 || test "$E2" = 0; then
+    echo "Broken shell detected.  Trying alternatives."
+    export FF_CONF_EXEC
+    if test "0$FF_CONF_EXEC" -lt 1; then
+        FF_CONF_EXEC=1
+        try_exec bash "$0" "$@"
+    fi
+    if test "0$FF_CONF_EXEC" -lt 2; then
+        FF_CONF_EXEC=2
+        try_exec ksh "$0" "$@"
+    fi
+    if test "0$FF_CONF_EXEC" -lt 3; then
+        FF_CONF_EXEC=3
+        try_exec /usr/xpg4/bin/sh "$0" "$@"
+    fi
+    echo "No compatible shell script interpreter found."
+    echo "This configure script requires a POSIX-compatible shell"
+    echo "such as bash or ksh."
+    echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
+    echo "Instead, install a working POSIX-compatible shell."
+    echo "Disabling this configure test will create a broken FFmpeg."
+    if test "$BASH_VERSION" = '2.04.0(1)-release'; then
+        echo "This bash version ($BASH_VERSION) is broken on your platform."
+        echo "Upgrade to a later version if available."
+    fi
+    exit 1
+fi
+
+test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
+
+show_help(){
+    cat <<EOF
+Usage: configure [options]
+Options: [defaults in brackets after descriptions]
+
+Help options:
+  --help                   print this message
+  --quiet                  Suppress showing informative output
+  --list-decoders          show all available decoders
+  --list-encoders          show all available encoders
+  --list-hwaccels          show all available hardware accelerators
+  --list-demuxers          show all available demuxers
+  --list-muxers            show all available muxers
+  --list-parsers           show all available parsers
+  --list-protocols         show all available protocols
+  --list-bsfs              show all available bitstream filters
+  --list-indevs            show all available input devices
+  --list-outdevs           show all available output devices
+  --list-filters           show all available filters
+
+Standard options:
+  --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
+  --disable-logging        do not log configure debug information
+  --fatal-warnings         fail if any configure warning is generated
+  --prefix=PREFIX          install in PREFIX [$prefix_default]
+  --bindir=DIR             install binaries in DIR [PREFIX/bin]
+  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
+  --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
+  --libdir=DIR             install libs in DIR [PREFIX/lib]
+  --shlibdir=DIR           install shared libs in DIR [LIBDIR]
+  --incdir=DIR             install includes in DIR [PREFIX/include]
+  --mandir=DIR             install man page in DIR [PREFIX/share/man]
+  --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
+  --enable-rpath           use rpath to allow installing libraries in paths
+                           not part of the dynamic linker search path
+                           use rpath when linking programs (USE WITH CARE)
+  --install-name-dir=DIR   Darwin directory name for installed targets
+
+Licensing options:
+  --enable-gpl             allow use of GPL code, the resulting libs
+                           and binaries will be under GPL [no]
+  --enable-version3        upgrade (L)GPL to version 3 [no]
+  --enable-nonfree         allow use of nonfree code, the resulting libs
+                           and binaries will be unredistributable [no]
+
+Configuration options:
+  --disable-static         do not build static libraries [no]
+  --enable-shared          build shared libraries [no]
+  --enable-small           optimize for size instead of speed
+  --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
+  --enable-gray            enable full grayscale support (slower color)
+  --disable-swscale-alpha  disable alpha channel support in swscale
+  --disable-all            disable building components, libraries and programs
+  --disable-autodetect     disable automatically detected external libraries [no]
+
+Program options:
+  --disable-programs       do not build command line programs
+  --disable-ffmpeg         disable ffmpeg build
+  --disable-ffplay         disable ffplay build
+  --disable-ffprobe        disable ffprobe build
+
+Documentation options:
+  --disable-doc            do not build documentation
+  --disable-htmlpages      do not build HTML documentation pages
+  --disable-manpages       do not build man documentation pages
+  --disable-podpages       do not build POD documentation pages
+  --disable-txtpages       do not build text documentation pages
+
+Component options:
+  --disable-avdevice       disable libavdevice build
+  --disable-avcodec        disable libavcodec build
+  --disable-avformat       disable libavformat build
+  --disable-swresample     disable libswresample build
+  --disable-swscale        disable libswscale build
+  --disable-postproc       disable libpostproc build
+  --disable-avfilter       disable libavfilter build
+  --enable-avresample      enable libavresample build (deprecated) [no]
+  --disable-pthreads       disable pthreads [autodetect]
+  --disable-w32threads     disable Win32 threads [autodetect]
+  --disable-os2threads     disable OS/2 threads [autodetect]
+  --disable-network        disable network support [no]
+  --disable-dct            disable DCT code
+  --disable-dwt            disable DWT code
+  --disable-error-resilience disable error resilience code
+  --disable-lsp            disable LSP code
+  --disable-lzo            disable LZO decoder code
+  --disable-mdct           disable MDCT code
+  --disable-rdft           disable RDFT code
+  --disable-fft            disable FFT code
+  --disable-faan           disable floating point AAN (I)DCT code
+  --disable-pixelutils     disable pixel utils in libavutil
+
+Individual component options:
+  --disable-everything     disable all components listed below
+  --disable-encoder=NAME   disable encoder NAME
+  --enable-encoder=NAME    enable encoder NAME
+  --disable-encoders       disable all encoders
+  --disable-decoder=NAME   disable decoder NAME
+  --enable-decoder=NAME    enable decoder NAME
+  --disable-decoders       disable all decoders
+  --disable-hwaccel=NAME   disable hwaccel NAME
+  --enable-hwaccel=NAME    enable hwaccel NAME
+  --disable-hwaccels       disable all hwaccels
+  --disable-muxer=NAME     disable muxer NAME
+  --enable-muxer=NAME      enable muxer NAME
+  --disable-muxers         disable all muxers
+  --disable-demuxer=NAME   disable demuxer NAME
+  --enable-demuxer=NAME    enable demuxer NAME
+  --disable-demuxers       disable all demuxers
+  --enable-parser=NAME     enable parser NAME
+  --disable-parser=NAME    disable parser NAME
+  --disable-parsers        disable all parsers
+  --enable-bsf=NAME        enable bitstream filter NAME
+  --disable-bsf=NAME       disable bitstream filter NAME
+  --disable-bsfs           disable all bitstream filters
+  --enable-protocol=NAME   enable protocol NAME
+  --disable-protocol=NAME  disable protocol NAME
+  --disable-protocols      disable all protocols
+  --enable-indev=NAME      enable input device NAME
+  --disable-indev=NAME     disable input device NAME
+  --disable-indevs         disable input devices
+  --enable-outdev=NAME     enable output device NAME
+  --disable-outdev=NAME    disable output device NAME
+  --disable-outdevs        disable output devices
+  --disable-devices        disable all devices
+  --enable-filter=NAME     enable filter NAME
+  --disable-filter=NAME    disable filter NAME
+  --disable-filters        disable all filters
+
+External library support:
+
+  Using any of the following switches will allow FFmpeg to link to the
+  corresponding external library. All the components depending on that library
+  will become enabled, if all their other dependencies are met and they are not
+  explicitly disabled. E.g. --enable-libwavpack will enable linking to
+  libwavpack and allow the libwavpack encoder to be built, unless it is
+  specifically disabled with --disable-encoder=libwavpack.
+
+  Note that only the system libraries are auto-detected. All the other external
+  libraries must be explicitly enabled.
+
+  Also note that the following help text describes the purpose of the libraries
+  themselves, not all their features will necessarily be usable by FFmpeg.
+
+  --disable-alsa           disable ALSA support [autodetect]
+  --disable-appkit         disable Apple AppKit framework [autodetect]
+  --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
+  --enable-avisynth        enable reading of AviSynth script files [no]
+  --disable-bzlib          disable bzlib [autodetect]
+  --disable-coreimage      disable Apple CoreImage framework [autodetect]
+  --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
+  --enable-frei0r          enable frei0r video filtering [no]
+  --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
+                           if openssl, librtmp or gmp is not used [no]
+  --enable-gmp             enable gmp, needed for rtmp(t)e support
+                           if openssl or librtmp is not used [no]
+  --enable-gnutls          enable gnutls, needed for https support
+                           if openssl, libtls or mbedtls is not used [no]
+  --disable-iconv          disable iconv [autodetect]
+  --enable-jni             enable JNI support [no]
+  --enable-ladspa          enable LADSPA audio filtering [no]
+  --enable-libaom          enable AV1 video encoding/decoding via libaom [no]
+  --enable-libaribb24      enable ARIB text and caption decoding via libaribb24 [no]
+  --enable-libass          enable libass subtitles rendering,
+                           needed for subtitles and ass filter [no]
+  --enable-libbluray       enable BluRay reading using libbluray [no]
+  --enable-libbs2b         enable bs2b DSP library [no]
+  --enable-libcaca         enable textual display using libcaca [no]
+  --enable-libcelt         enable CELT decoding via libcelt [no]
+  --enable-libcdio         enable audio CD grabbing with libcdio [no]
+  --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]
+  --enable-libdav1d        enable AV1 decoding via libdav1d [no]
+  --enable-libdavs2        enable AVS2 decoding via libdavs2 [no]
+  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
+                           and libraw1394 [no]
+  --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
+  --enable-libflite        enable flite (voice synthesis) support via libflite [no]
+  --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
+  --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
+  --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
+  --enable-libgme          enable Game Music Emu via libgme [no]
+  --enable-libgsm          enable GSM de/encoding via libgsm [no]
+  --enable-libiec61883     enable iec61883 via libiec61883 [no]
+  --enable-libilbc         enable iLBC de/encoding via libilbc [no]
+  --enable-libjack         enable JACK audio sound server [no]
+  --enable-libklvanc       enable Kernel Labs VANC processing [no]
+  --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
+  --enable-liblensfun      enable lensfun lens correction [no]
+  --enable-libmodplug      enable ModPlug via libmodplug [no]
+  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
+  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
+  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
+  --enable-libopencv       enable video filtering via libopencv [no]
+  --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
+  --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
+  --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
+  --enable-libopus         enable Opus de/encoding via libopus [no]
+  --enable-libpulse        enable Pulseaudio input via libpulse [no]
+  --enable-librsvg         enable SVG rasterization via librsvg [no]
+  --enable-librubberband   enable rubberband needed for rubberband filter [no]
+  --enable-librtmp         enable RTMP[E] support via librtmp [no]
+  --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
+  --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
+  --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
+  --enable-libsoxr         enable Include libsoxr resampling [no]
+  --enable-libspeex        enable Speex de/encoding via libspeex [no]
+  --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
+  --enable-libssh          enable SFTP protocol via libssh [no]
+  --enable-libtensorflow   enable TensorFlow as a DNN module backend
+                           for DNN based filters like sr [no]
+  --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
+  --enable-libtheora       enable Theora encoding via libtheora [no]
+  --enable-libtls          enable LibreSSL (via libtls), needed for https support
+                           if openssl, gnutls or mbedtls is not used [no]
+  --enable-libtwolame      enable MP2 encoding via libtwolame [no]
+  --enable-libv4l2         enable libv4l2/v4l-utils [no]
+  --enable-libvidstab      enable video stabilization using vid.stab [no]
+  --enable-libvmaf         enable vmaf filter via libvmaf [no]
+  --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
+  --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
+                           native implementation exists [no]
+  --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
+  --enable-libwavpack      enable wavpack encoding via libwavpack [no]
+  --enable-libwebp         enable WebP encoding via libwebp [no]
+  --enable-libx264         enable H.264 encoding via x264 [no]
+  --enable-libx265         enable HEVC encoding via x265 [no]
+  --enable-libxavs         enable AVS encoding via xavs [no]
+  --enable-libxavs2        enable AVS2 encoding via xavs2 [no]
+  --enable-libxcb          enable X11 grabbing using XCB [autodetect]
+  --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
+  --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
+  --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
+  --enable-libxvid         enable Xvid encoding via xvidcore,
+                           native MPEG-4/Xvid encoder exists [no]
+  --enable-libxml2         enable XML parsing using the C library libxml2, needed
+                           for dash demuxing support [no]
+  --enable-libzimg         enable z.lib, needed for zscale filter [no]
+  --enable-libzmq          enable message passing via libzmq [no]
+  --enable-libzvbi         enable teletext support via libzvbi [no]
+  --enable-lv2             enable LV2 audio filtering [no]
+  --disable-lzma           disable lzma [autodetect]
+  --enable-decklink        enable Blackmagic DeckLink I/O support [no]
+  --enable-mbedtls         enable mbedTLS, needed for https support
+                           if openssl, gnutls or libtls is not used [no]
+  --enable-mediacodec      enable Android MediaCodec support [no]
+  --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
+  --enable-openal          enable OpenAL 1.1 capture support [no]
+  --enable-opencl          enable OpenCL processing [no]
+  --enable-opengl          enable OpenGL rendering [no]
+  --enable-openssl         enable openssl, needed for https support
+                           if gnutls, libtls or mbedtls is not used [no]
+  --enable-pocketsphinx    enable PocketSphinx, needed for asr filter [no]
+  --disable-sndio          disable sndio support [autodetect]
+  --disable-schannel       disable SChannel SSP, needed for TLS support on
+                           Windows if openssl and gnutls are not used [autodetect]
+  --disable-sdl2           disable sdl2 [autodetect]
+  --disable-securetransport disable Secure Transport, needed for TLS support
+                           on OSX if openssl and gnutls are not used [autodetect]
+  --enable-vapoursynth     enable VapourSynth demuxer [no]
+  --disable-xlib           disable xlib [autodetect]
+  --disable-zlib           disable zlib [autodetect]
+
+  The following libraries provide various hardware acceleration features:
+  --disable-amf            disable AMF video encoding code [autodetect]
+  --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
+  --enable-cuda-nvcc       enable Nvidia CUDA compiler [no]
+  --disable-cuda-llvm      disable CUDA compilation using clang [autodetect]
+  --disable-cuvid          disable Nvidia CUVID support [autodetect]
+  --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
+  --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
+  --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
+  --enable-libdrm          enable DRM code (Linux) [no]
+  --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
+  --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
+  --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
+  --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
+  --disable-nvenc          disable Nvidia video encoding code [autodetect]
+  --enable-omx             enable OpenMAX IL code [no]
+  --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
+  --enable-rkmpp           enable Rockchip Media Process Platform code [no]
+  --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
+  --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
+  --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
+  --disable-videotoolbox   disable VideoToolbox code [autodetect]
+
+Toolchain options:
+  --arch=ARCH              select architecture [$arch]
+  --cpu=CPU                select the minimum required CPU (affects
+                           instruction selection, may crash on older CPUs)
+  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
+  --progs-suffix=SUFFIX    program name suffix []
+  --enable-cross-compile   assume a cross-compiler is used
+  --sysroot=PATH           root of cross-build tree
+  --sysinclude=PATH        location of cross-build system headers
+  --target-os=OS           compiler targets OS [$target_os]
+  --target-exec=CMD        command to run executables on target
+  --target-path=DIR        path to view of build directory on target
+  --target-samples=DIR     path to samples directory on target
+  --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
+  --toolchain=NAME         set tool defaults according to NAME
+                           (gcc-asan, clang-asan, gcc-msan, clang-msan,
+                           gcc-tsan, clang-tsan, gcc-usan, clang-usan,
+                           valgrind-massif, valgrind-memcheck,
+                           msvc, icl, gcov, llvm-cov, hardened)
+  --nm=NM                  use nm tool NM [$nm_default]
+  --ar=AR                  use archive tool AR [$ar_default]
+  --as=AS                  use assembler AS [$as_default]
+  --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
+  --strip=STRIP            use strip tool STRIP [$strip_default]
+  --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
+  --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
+  --cc=CC                  use C compiler CC [$cc_default]
+  --cxx=CXX                use C compiler CXX [$cxx_default]
+  --objcc=OCC              use ObjC compiler OCC [$cc_default]
+  --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
+  --nvcc=NVCC              use Nvidia CUDA compiler NVCC or clang [$nvcc_default]
+  --ld=LD                  use linker LD [$ld_default]
+  --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
+  --pkg-config-flags=FLAGS pass additional flags to pkgconf []
+  --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
+  --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
+  --host-cc=HOSTCC         use host C compiler HOSTCC
+  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
+  --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
+  --host-ld=HOSTLD         use host linker HOSTLD
+  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
+  --host-extralibs=HLIBS   use libs HLIBS when linking for host
+  --host-os=OS             compiler host OS [$target_os]
+  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
+  --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
+  --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
+  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
+  --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
+  --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
+  --extra-libs=ELIBS       add ELIBS [$ELIBS]
+  --extra-version=STRING   version string suffix []
+  --optflags=OPTFLAGS      override optimization-related compiler flags
+  --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
+  --build-suffix=SUFFIX    library name suffix []
+  --enable-pic             build position-independent code
+  --enable-thumb           compile for Thumb instruction set
+  --enable-lto             use link-time optimization
+  --env="ENV=override"     override the environment variables
+
+Advanced options (experts only):
+  --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
+  --custom-allocator=NAME  use a supported custom allocator
+  --disable-symver         disable symbol versioning
+  --enable-hardcoded-tables use hardcoded tables instead of runtime generation
+  --disable-safe-bitstream-reader
+                           disable buffer boundary checking in bitreaders
+                           (faster, but may crash)
+  --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
+
+Optimization options (experts only):
+  --disable-asm            disable all assembly optimizations
+  --disable-altivec        disable AltiVec optimizations
+  --disable-vsx            disable VSX optimizations
+  --disable-power8         disable POWER8 optimizations
+  --disable-amd3dnow       disable 3DNow! optimizations
+  --disable-amd3dnowext    disable 3DNow! extended optimizations
+  --disable-mmx            disable MMX optimizations
+  --disable-mmxext         disable MMXEXT optimizations
+  --disable-sse            disable SSE optimizations
+  --disable-sse2           disable SSE2 optimizations
+  --disable-sse3           disable SSE3 optimizations
+  --disable-ssse3          disable SSSE3 optimizations
+  --disable-sse4           disable SSE4 optimizations
+  --disable-sse42          disable SSE4.2 optimizations
+  --disable-avx            disable AVX optimizations
+  --disable-xop            disable XOP optimizations
+  --disable-fma3           disable FMA3 optimizations
+  --disable-fma4           disable FMA4 optimizations
+  --disable-avx2           disable AVX2 optimizations
+  --disable-avx512         disable AVX-512 optimizations
+  --disable-aesni          disable AESNI optimizations
+  --disable-armv5te        disable armv5te optimizations
+  --disable-armv6          disable armv6 optimizations
+  --disable-armv6t2        disable armv6t2 optimizations
+  --disable-vfp            disable VFP optimizations
+  --disable-neon           disable NEON optimizations
+  --disable-inline-asm     disable use of inline assembly
+  --disable-x86asm         disable use of standalone x86 assembly
+  --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
+  --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
+  --disable-msa            disable MSA optimizations
+  --disable-msa2           disable MSA2 optimizations
+  --disable-mipsfpu        disable floating point MIPS optimizations
+  --disable-mmi            disable Loongson SIMD optimizations
+  --disable-fast-unaligned consider unaligned accesses slow
+
+Developer options (useful when working on FFmpeg itself):
+  --disable-debug          disable debugging symbols
+  --enable-debug=LEVEL     set the debug level [$debuglevel]
+  --disable-optimizations  disable compiler optimizations
+  --enable-extra-warnings  enable more compiler warnings
+  --disable-stripping      disable stripping of executables and shared libraries
+  --assert-level=level     0(default), 1 or 2, amount of assertion testing,
+                           2 causes a slowdown at runtime.
+  --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
+  --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
+                           leaks and errors, using the specified valgrind binary.
+                           Cannot be combined with --target-exec
+  --enable-ftrapv          Trap arithmetic overflows
+  --samples=PATH           location of test samples for FATE, if not set use
+                           \$FATE_SAMPLES at make invocation time.
+  --enable-neon-clobber-test check NEON registers for clobbering (should be
+                           used only for debugging purposes)
+  --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
+                           should be used only for debugging purposes)
+  --enable-random          randomly enable/disable components
+  --disable-random
+  --enable-random=LIST     randomly enable/disable specific components or
+  --disable-random=LIST    component groups. LIST is a comma-separated list
+                           of NAME[:PROB] entries where NAME is a component
+                           (group) and PROB the probability associated with
+                           NAME (default 0.5).
+  --random-seed=VALUE      seed value for --enable/disable-random
+  --disable-valgrind-backtrace do not print a backtrace under Valgrind
+                           (only applies to --disable-optimizations builds)
+  --enable-ossfuzz         Enable building fuzzer tool
+  --libfuzzer=PATH         path to libfuzzer
+  --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
+                           in the name) of tests whose result is ignored
+  --enable-linux-perf      enable Linux Performance Monitor API
+
+NOTE: Object files are built at the place where configure is launched.
+EOF
+  exit 0
+}
+
+if test -t 1 && which tput >/dev/null 2>&1; then
+    ncolors=$(tput colors)
+    if test -n "$ncolors" && test $ncolors -ge 8; then
+        bold_color=$(tput bold)
+        warn_color=$(tput setaf 3)
+        error_color=$(tput setaf 1)
+        reset_color=$(tput sgr0)
+    fi
+    # 72 used instead of 80 since that's the default of pr
+    ncols=$(tput cols)
+fi
+: ${ncols:=72}
+
+log(){
+    echo "$@" >> $logfile
+}
+
+log_file(){
+    log BEGIN "$1"
+    log_file_i=1
+    while IFS= read -r log_file_line; do
+        printf '%5d\t%s\n' "$log_file_i" "$log_file_line"
+        log_file_i=$(($log_file_i+1))
+    done < "$1" >> "$logfile"
+    log END "$1"
+}
+
+warn(){
+    log "WARNING: $*"
+    WARNINGS="${WARNINGS}WARNING: $*\n"
+}
+
+die(){
+    log "$@"
+    echo "$error_color$bold_color$@$reset_color"
+    cat <<EOF
+
+If you think configure made a mistake, make sure you are using the latest
+version from Git.  If the latest version fails, report the problem to the
+ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
+EOF
+    if disabled logging; then
+        cat <<EOF
+Rerun configure with logging enabled (do not use --disable-logging), and
+include the log this produces with your report.
+EOF
+    else
+        cat <<EOF
+Include the log file "$logfile" produced by configure as this will help
+solve the problem.
+EOF
+    fi
+    exit 1
+}
+
+# Avoid locale weirdness, besides we really just want to translate ASCII.
+toupper(){
+    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
+}
+
+tolower(){
+    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
+}
+
+c_escape(){
+    echo "$*" | sed 's/["\\]/\\\0/g'
+}
+
+sh_quote(){
+    v=$(echo "$1" | sed "s/'/'\\\\''/g")
+    test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
+    echo "$v"
+}
+
+cleanws(){
+    echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
+}
+
+filter(){
+    pat=$1
+    shift
+    for v; do
+        eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
+    done
+}
+
+filter_out(){
+    pat=$1
+    shift
+    for v; do
+        eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
+    done
+}
+
+map(){
+    m=$1
+    shift
+    for v; do eval $m; done
+}
+
+add_suffix(){
+    suffix=$1
+    shift
+    for v; do echo ${v}${suffix}; done
+}
+
+remove_suffix(){
+    suffix=$1
+    shift
+    for v; do echo ${v%$suffix}; done
+}
+
+set_all(){
+    value=$1
+    shift
+    for var in $*; do
+        eval $var=$value
+    done
+}
+
+set_weak(){
+    value=$1
+    shift
+    for var; do
+        eval : \${$var:=$value}
+    done
+}
+
+sanitize_var_name(){
+    echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
+}
+
+set_sanitized(){
+    var=$1
+    shift
+    eval $(sanitize_var_name "$var")='$*'
+}
+
+get_sanitized(){
+    eval echo \$$(sanitize_var_name "$1")
+}
+
+pushvar(){
+    for pvar in $*; do
+        eval level=\${${pvar}_level:=0}
+        eval ${pvar}_${level}="\$$pvar"
+        eval ${pvar}_level=$(($level+1))
+    done
+}
+
+popvar(){
+    for pvar in $*; do
+        eval level=\${${pvar}_level:-0}
+        test $level = 0 && continue
+        eval level=$(($level-1))
+        eval $pvar="\${${pvar}_${level}}"
+        eval ${pvar}_level=$level
+        eval unset ${pvar}_${level}
+    done
+}
+
+request(){
+    for var in $*; do
+        eval ${var}_requested=yes
+        eval $var=
+    done
+}
+
+warn_if_gets_disabled(){
+    for var in $*; do
+        WARN_IF_GETS_DISABLED_LIST="$WARN_IF_GETS_DISABLED_LIST $var"
+    done
+}
+
+enable(){
+    set_all yes $*
+}
+
+disable(){
+    set_all no $*
+}
+
+disable_with_reason(){
+    disable $1
+    eval "${1}_disable_reason=\"$2\""
+    if requested $1; then
+        die "ERROR: $1 requested, but $2"
+    fi
+}
+
+enable_weak(){
+    set_weak yes $*
+}
+
+disable_weak(){
+    set_weak no $*
+}
+
+enable_sanitized(){
+    for var; do
+        enable $(sanitize_var_name $var)
+    done
+}
+
+disable_sanitized(){
+    for var; do
+        disable $(sanitize_var_name $var)
+    done
+}
+
+do_enable_deep(){
+    for var; do
+        enabled $var && continue
+        set -- $var
+        eval enable_deep \$${var}_select
+        var=$1
+        eval enable_deep_weak \$${var}_suggest
+    done
+}
+
+enable_deep(){
+    do_enable_deep $*
+    enable $*
+}
+
+enable_deep_weak(){
+    for var; do
+        disabled $var && continue
+        set -- $var
+        do_enable_deep $var
+        var=$1
+        enable_weak $var
+    done
+}
+
+requested(){
+    test "${1#!}" = "$1" && op="=" || op="!="
+    eval test "x\$${1#!}_requested" $op "xyes"
+}
+
+enabled(){
+    test "${1#!}" = "$1" && op="=" || op="!="
+    eval test "x\$${1#!}" $op "xyes"
+}
+
+disabled(){
+    test "${1#!}" = "$1" && op="=" || op="!="
+    eval test "x\$${1#!}" $op "xno"
+}
+
+enabled_all(){
+    for opt; do
+        enabled $opt || return 1
+    done
+}
+
+disabled_all(){
+    for opt; do
+        disabled $opt || return 1
+    done
+}
+
+enabled_any(){
+    for opt; do
+        enabled $opt && return 0
+    done
+}
+
+disabled_any(){
+    for opt; do
+        disabled $opt && return 0
+    done
+    return 1
+}
+
+set_default(){
+    for opt; do
+        eval : \${$opt:=\$${opt}_default}
+    done
+}
+
+is_in(){
+    value=$1
+    shift
+    for var in $*; do
+        [ $var = $value ] && return 0
+    done
+    return 1
+}
+
+# The cfg loop is very hot (several thousands iterations), and in bash also
+# potentialy quite slow. Try to abort the iterations early, preferably without
+# calling functions. 70%+ of the time cfg is already done or without deps.
+check_deps(){
+    for cfg; do
+        eval [ x\$${cfg}_checking = xdone ] && continue
+        eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
+
+        eval "
+        dep_all=\$${cfg}_deps
+        dep_any=\$${cfg}_deps_any
+        dep_con=\$${cfg}_conflict
+        dep_sel=\$${cfg}_select
+        dep_sgs=\$${cfg}_suggest
+        dep_ifa=\$${cfg}_if
+        dep_ifn=\$${cfg}_if_any
+        "
+
+        # most of the time here $cfg has no deps - avoid costly no-op work
+        if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
+            eval ${cfg}_checking=inprogress
+
+            set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
+            check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
+            cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
+
+            [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
+            [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
+            enabled_all  $dep_all || { disable_with_reason $cfg "not all dependencies are satisfied: $dep_all"; }
+            enabled_any  $dep_any || { disable_with_reason $cfg "not any dependency is satisfied: $dep_any"; }
+            disabled_all $dep_con || { disable_with_reason $cfg "some conflicting dependencies are unsatisfied: $dep_con"; }
+            disabled_any $dep_sel && { disable_with_reason $cfg "some selected dependency is unsatisfied: $dep_sel"; }
+
+            enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
+
+            for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
+                # filter out library deps, these do not belong in extralibs
+                is_in $dep $LIBRARY_LIST && continue
+                enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
+            done
+        fi
+
+        eval ${cfg}_checking=done
+    done
+}
+
+print_config(){
+    pfx=$1
+    files=$2
+    shift 2
+    map 'eval echo "$v \${$v:-no}"' "$@" |
+    awk "BEGIN { split(\"$files\", files) }
+        {
+            c = \"$pfx\" toupper(\$1);
+            v = \$2;
+            sub(/yes/, 1, v);
+            sub(/no/,  0, v);
+            for (f in files) {
+                file = files[f];
+                if (file ~ /\\.h\$/) {
+                    printf(\"#define %s %d\\n\", c, v) >>file;
+                } else if (file ~ /\\.asm\$/) {
+                    printf(\"%%define %s %d\\n\", c, v) >>file;
+                } else if (file ~ /\\.mak\$/) {
+                    n = -v ? \"\" : \"!\";
+                    printf(\"%s%s=yes\\n\", n, c) >>file;
+                } else if (file ~ /\\.texi\$/) {
+                    pre = -v ? \"\" : \"@c \";
+                    yesno = \$2;
+                    c2 = tolower(c);
+                    gsub(/_/, \"-\", c2);
+                    printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
+                }
+            }
+        }"
+}
+
+print_enabled(){
+    suf=$1
+    shift
+    for v; do
+        enabled $v && printf "%s\n" ${v%$suf}
+    done
+}
+
+append(){
+    var=$1
+    shift
+    eval "$var=\"\$$var $*\""
+}
+
+prepend(){
+    var=$1
+    shift
+    eval "$var=\"$* \$$var\""
+}
+
+reverse () {
+    eval '
+        reverse_out=
+        for v in $'$1'; do
+            reverse_out="$v $reverse_out"
+        done
+        '$1'=$reverse_out
+    '
+}
+
+# keeps the last occurence of each non-unique item
+unique(){
+    unique_out=
+    eval unique_in=\$$1
+    reverse unique_in
+    for v in $unique_in; do
+        # " $unique_out" +space such that every item is surrounded with spaces
+        case " $unique_out" in *" $v "*) continue; esac  # already in list
+        unique_out="$unique_out$v "
+    done
+    reverse unique_out
+    eval $1=\$unique_out
+}
+
+resolve(){
+    resolve_out=
+    eval resolve_in=\$$1
+    for v in $resolve_in; do
+        eval 'resolve_out="$resolve_out$'$v' "'
+    done
+    eval $1=\$resolve_out
+}
+
+add_cppflags(){
+    append CPPFLAGS "$@"
+}
+
+add_cflags(){
+    append CFLAGS $($cflags_filter "$@")
+}
+
+add_cflags_headers(){
+    append CFLAGS_HEADERS $($cflags_filter "$@")
+}
+
+add_cxxflags(){
+    append CXXFLAGS $($cflags_filter "$@")
+}
+
+add_objcflags(){
+    append OBJCFLAGS $($objcflags_filter "$@")
+}
+
+add_asflags(){
+    append ASFLAGS $($asflags_filter "$@")
+}
+
+add_ldflags(){
+    append LDFLAGS $($ldflags_filter "$@")
+}
+
+add_ldexeflags(){
+    append LDEXEFLAGS $($ldflags_filter "$@")
+}
+
+add_ldsoflags(){
+    append LDSOFLAGS $($ldflags_filter "$@")
+}
+
+add_extralibs(){
+    prepend extralibs $($ldflags_filter "$@")
+}
+
+add_stripflags(){
+    append ASMSTRIPFLAGS "$@"
+}
+
+add_host_cppflags(){
+    append host_cppflags "$@"
+}
+
+add_host_cflags(){
+    append host_cflags $($host_cflags_filter "$@")
+}
+
+add_host_ldflags(){
+    append host_ldflags $($host_ldflags_filter "$@")
+}
+
+add_compat(){
+    append compat_objs $1
+    shift
+    map 'add_cppflags -D$v' "$@"
+}
+
+test_cmd(){
+    log "$@"
+    "$@" >> $logfile 2>&1
+}
+
+test_stat(){
+    log test_stat "$@"
+    stat "$1" >> $logfile 2>&1
+}
+
+cc_e(){
+    eval printf '%s\\n' $CC_E
+}
+
+cc_o(){
+    eval printf '%s\\n' $CC_O
+}
+
+as_o(){
+    eval printf '%s\\n' $AS_O
+}
+
+x86asm_o(){
+    eval printf '%s\\n' $X86ASM_O
+}
+
+ld_o(){
+    eval printf '%s\\n' $LD_O
+}
+
+hostcc_e(){
+    eval printf '%s\\n' $HOSTCC_E
+}
+
+hostcc_o(){
+    eval printf '%s\\n' $HOSTCC_O
+}
+
+nvcc_o(){
+    eval printf '%s\\n' $NVCC_O
+}
+
+test_cc(){
+    log test_cc "$@"
+    cat > $TMPC
+    log_file $TMPC
+    test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
+}
+
+test_cxx(){
+    log test_cxx "$@"
+    cat > $TMPCPP
+    log_file $TMPCPP
+    test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
+}
+
+test_objcc(){
+    log test_objcc "$@"
+    cat > $TMPM
+    log_file $TMPM
+    test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
+}
+
+test_nvcc(){
+    log test_nvcc "$@"
+    cat > $TMPCU
+    log_file $TMPCU
+    tmpcu_=$TMPCU
+    tmpo_=$TMPO
+    [ -x "$(command -v cygpath)" ] && tmpcu_=$(cygpath -m $tmpcu_) && tmpo_=$(cygpath -m $tmpo_)
+    test_cmd $nvcc $nvccflags "$@" $NVCC_C $(nvcc_o $tmpo_) $tmpcu_
+}
+
+check_nvcc() {
+    log check_nvcc "$@"
+    name=$1
+    shift 1
+    disabled $name && return
+    disable $name
+    test_nvcc "$@" <<EOF && enable $name
+extern "C" {
+    __global__ void hello(unsigned char *data) {}
+}
+EOF
+}
+
+test_cpp(){
+    log test_cpp "$@"
+    cat > $TMPC
+    log_file $TMPC
+    test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
+}
+
+test_as(){
+    log test_as "$@"
+    cat > $TMPS
+    log_file $TMPS
+    test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
+}
+
+test_x86asm(){
+    log test_x86asm "$@"
+    echo "$1" > $TMPASM
+    log_file $TMPASM
+    shift
+    test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
+}
+
+check_cmd(){
+    log check_cmd "$@"
+    cmd=$1
+    disabled $cmd && return
+    disable $cmd
+    test_cmd $@ && enable $cmd
+}
+
+check_as(){
+    log check_as "$@"
+    name=$1
+    code=$2
+    shift 2
+    disable $name
+    test_as $@ <<EOF && enable $name
+$code
+EOF
+}
+
+check_inline_asm(){
+    log check_inline_asm "$@"
+    name="$1"
+    code="$2"
+    shift 2
+    disable $name
+    test_cc "$@" <<EOF && enable $name
+void foo(void){ __asm__ volatile($code); }
+EOF
+}
+
+check_inline_asm_flags(){
+    log check_inline_asm_flags "$@"
+    name="$1"
+    code="$2"
+    flags=''
+    shift 2
+    while [ "$1" != "" ]; do
+      append flags $1
+      shift
+    done;
+    disable $name
+    cat > $TMPC <<EOF
+void foo(void){ __asm__ volatile($code); }
+EOF
+    log_file $TMPC
+    test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
+    enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
+}
+
+check_insn(){
+    log check_insn "$@"
+    check_inline_asm ${1}_inline "\"$2\""
+    check_as ${1}_external "$2"
+}
+
+check_x86asm(){
+    log check_x86asm "$@"
+    name=$1
+    shift
+    disable $name
+    test_x86asm "$@" && enable $name
+}
+
+test_ld(){
+    log test_ld "$@"
+    type=$1
+    shift 1
+    flags=$(filter_out '-l*|*.so' $@)
+    libs=$(filter '-l*|*.so' $@)
+    test_$type $($cflags_filter $flags) || return
+    flags=$($ldflags_filter $flags)
+    libs=$($ldflags_filter $libs)
+    test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
+}
+
+check_ld(){
+    log check_ld "$@"
+    type=$1
+    name=$2
+    shift 2
+    disable $name
+    test_ld $type $@ && enable $name
+}
+
+print_include(){
+    hdr=$1
+    test "${hdr%.h}" = "${hdr}" &&
+        echo "#include $hdr"    ||
+        echo "#include <$hdr>"
+}
+
+test_code(){
+    log test_code "$@"
+    check=$1
+    headers=$2
+    code=$3
+    shift 3
+    {
+        for hdr in $headers; do
+            print_include $hdr
+        done
+        echo "int main(void) { $code; return 0; }"
+    } | test_$check "$@"
+}
+
+check_cppflags(){
+    log check_cppflags "$@"
+    test_cpp "$@" <<EOF && append CPPFLAGS "$@"
+#include <stdlib.h>
+EOF
+}
+
+test_cflags(){
+    log test_cflags "$@"
+    set -- $($cflags_filter "$@")
+    test_cc "$@" <<EOF
+int x;
+EOF
+}
+
+check_cflags(){
+    log check_cflags "$@"
+    test_cflags "$@" && add_cflags "$@"
+}
+
+check_cxxflags(){
+    log check_cxxflags "$@"
+    set -- $($cflags_filter "$@")
+    test_cxx "$@" <<EOF && append CXXFLAGS "$@"
+int x;
+EOF
+}
+
+test_objcflags(){
+    log test_objcflags "$@"
+    set -- $($objcflags_filter "$@")
+    test_objcc "$@" <<EOF
+int x;
+EOF
+}
+
+check_objcflags(){
+    log check_objcflags "$@"
+    test_objcflags "$@" && add_objcflags "$@"
+}
+
+test_ldflags(){
+    log test_ldflags "$@"
+    set -- $($ldflags_filter "$@")
+    test_ld "cc" "$@" <<EOF
+int main(void){ return 0; }
+EOF
+}
+
+check_ldflags(){
+    log check_ldflags "$@"
+    test_ldflags "$@" && add_ldflags "$@"
+}
+
+test_stripflags(){
+    log test_stripflags "$@"
+    # call test_cc to get a fresh TMPO
+    test_cc <<EOF
+int main(void) { return 0; }
+EOF
+    test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
+}
+
+check_stripflags(){
+    log check_stripflags "$@"
+    test_stripflags "$@" && add_stripflags "$@"
+}
+
+check_headers(){
+    log check_headers "$@"
+    headers=$1
+    shift
+    disable_sanitized $headers
+    {
+        for hdr in $headers; do
+            print_include $hdr
+        done
+        echo "int x;"
+    } | test_cpp "$@" && enable_sanitized $headers
+}
+
+check_header_objcc(){
+    log check_header_objcc "$@"
+    rm -f -- "$TMPO"
+    header=$1
+    shift
+    disable_sanitized $header
+    {
+       echo "#include <$header>"
+       echo "int main(void) { return 0; }"
+    } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
+}
+
+check_apple_framework(){
+    log check_apple_framework "$@"
+    framework="$1"
+    name="$(tolower $framework)"
+    header="${framework}/${framework}.h"
+    disable $name
+    check_header_objcc $header &&
+        enable $name && eval ${name}_extralibs='"-framework $framework"'
+}
+
+check_func(){
+    log check_func "$@"
+    func=$1
+    shift
+    disable $func
+    test_ld "cc" "$@" <<EOF && enable $func
+extern int $func();
+int main(void){ $func(); }
+EOF
+}
+
+check_complexfunc(){
+    log check_complexfunc "$@"
+    func=$1
+    narg=$2
+    shift 2
+    test $narg = 2 && args="f, g" || args="f * I"
+    disable $func
+    test_ld "cc" "$@" <<EOF && enable $func
+#include <complex.h>
+#include <math.h>
+float foo(complex float f, complex float g) { return $func($args); }
+int main(void){ return (int) foo; }
+EOF
+}
+
+check_mathfunc(){
+    log check_mathfunc "$@"
+    func=$1
+    narg=$2
+    shift 2
+    test $narg = 2 && args="f, g" || args="f"
+    disable $func
+    test_ld "cc" "$@" <<EOF && enable $func
+#include <math.h>
+float foo(float f, float g) { return $func($args); }
+int main(void){ return (int) foo; }
+EOF
+}
+
+check_func_headers(){
+    log check_func_headers "$@"
+    headers=$1
+    funcs=$2
+    shift 2
+    {
+        for hdr in $headers; do
+            print_include $hdr
+        done
+        echo "#include <stdint.h>"
+        for func in $funcs; do
+            echo "long check_$func(void) { return (long) $func; }"
+        done
+        echo "int main(void) { int ret = 0;"
+        # LTO could optimize out the test functions without this
+        for func in $funcs; do
+            echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
+        done
+        echo "return ret; }"
+    } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
+}
+
+check_class_headers_cpp(){
+    log check_class_headers_cpp "$@"
+    headers=$1
+    classes=$2
+    shift 2
+    {
+        for hdr in $headers; do
+            echo "#include <$hdr>"
+        done
+        echo "int main(void) { "
+        i=1
+        for class in $classes; do
+            echo "$class obj$i;"
+            i=$(expr $i + 1)
+        done
+        echo "return 0; }"
+    } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
+}
+
+test_cpp_condition(){
+    log test_cpp_condition "$@"
+    header=$1
+    condition=$2
+    shift 2
+    test_cpp "$@" <<EOF
+#include <$header>
+#if !($condition)
+#error "unsatisfied condition: $condition"
+#endif
+EOF
+}
+
+check_cpp_condition(){
+    log check_cpp_condition "$@"
+    name=$1
+    shift 1
+    disable $name
+    test_cpp_condition "$@" && enable $name
+}
+
+test_cflags_cc(){
+    log test_cflags_cc "$@"
+    flags=$1
+    header=$2
+    condition=$3
+    shift 3
+    set -- $($cflags_filter "$flags")
+    test_cc "$@" <<EOF
+#include <$header>
+#if !($condition)
+#error "unsatisfied condition: $condition"
+#endif
+EOF
+}
+
+check_lib(){
+    log check_lib "$@"
+    name="$1"
+    headers="$2"
+    funcs="$3"
+    shift 3
+    disable $name
+    check_func_headers "$headers" "$funcs" "$@" &&
+        enable $name && eval ${name}_extralibs="\$@"
+}
+
+check_lib_cpp(){
+    log check_lib_cpp "$@"
+    name="$1"
+    headers="$2"
+    classes="$3"
+    shift 3
+    disable $name
+    check_class_headers_cpp "$headers" "$classes" "$@" &&
+        enable $name && eval ${name}_extralibs="\$@"
+}
+
+test_pkg_config(){
+    log test_pkg_config "$@"
+    name="$1"
+    pkg_version="$2"
+    pkg="${2%% *}"
+    headers="$3"
+    funcs="$4"
+    shift 4
+    disable $name
+    test_cmd $pkg_config --exists --print-errors $pkg_version || return
+    pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
+    pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
+    check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
+        enable $name &&
+        set_sanitized "${name}_cflags"    $pkg_cflags &&
+        set_sanitized "${name}_extralibs" $pkg_libs
+}
+
+check_pkg_config(){
+    log check_pkg_config "$@"
+    name="$1"
+    test_pkg_config "$@" &&
+        eval add_cflags \$${name}_cflags
+}
+
+test_exec(){
+    test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
+}
+
+check_exec_crash(){
+    log check_exec_crash "$@"
+    code=$(cat)
+
+    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
+    # are safe but may not be available everywhere.  Thus we use
+    # raise(SIGTERM) instead.  The check is run in a subshell so we
+    # can redirect the "Terminated" message from the shell.  SIGBUS
+    # is not defined by standard C so it is used conditionally.
+
+    (test_exec "$@") >> $logfile 2>&1 <<EOF
+#include <signal.h>
+static void sighandler(int sig){
+    raise(SIGTERM);
+}
+int foo(void){
+    $code
+}
+int (*func_ptr)(void) = foo;
+int main(void){
+    signal(SIGILL, sighandler);
+    signal(SIGFPE, sighandler);
+    signal(SIGSEGV, sighandler);
+#ifdef SIGBUS
+    signal(SIGBUS, sighandler);
+#endif
+    return func_ptr();
+}
+EOF
+}
+
+check_type(){
+    log check_type "$@"
+    headers=$1
+    type=$2
+    shift 2
+    disable_sanitized "$type"
+    test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
+}
+
+check_struct(){
+    log check_struct "$@"
+    headers=$1
+    struct=$2
+    member=$3
+    shift 3
+    disable_sanitized "${struct}_${member}"
+    test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
+        enable_sanitized "${struct}_${member}"
+}
+
+check_builtin(){
+    log check_builtin "$@"
+    name=$1
+    headers=$2
+    builtin=$3
+    shift 3
+    disable "$name"
+    test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
+}
+
+check_compile_assert(){
+    log check_compile_assert "$@"
+    name=$1
+    headers=$2
+    condition=$3
+    shift 3
+    disable "$name"
+    test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
+}
+
+check_cc(){
+    log check_cc "$@"
+    name=$1
+    shift
+    disable "$name"
+    test_code cc "$@" && enable "$name"
+}
+
+require(){
+    log require "$@"
+    name_version="$1"
+    name="${1%% *}"
+    shift
+    check_lib $name "$@" || die "ERROR: $name_version not found"
+}
+
+require_cc(){
+    log require_cc "$@"
+    name="$1"
+    check_cc "$@" || die "ERROR: $name failed"
+}
+
+require_cpp(){
+    name="$1"
+    headers="$2"
+    classes="$3"
+    shift 3
+    check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
+}
+
+require_headers(){
+    log require_headers "$@"
+    headers="$1"
+    check_headers "$@" || die "ERROR: $headers not found"
+}
+
+require_cpp_condition(){
+    log require_cpp_condition "$@"
+    condition="$3"
+    check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
+}
+
+require_pkg_config(){
+    log require_pkg_config "$@"
+    pkg_version="$2"
+    check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
+}
+
+test_host_cc(){
+    log test_host_cc "$@"
+    cat > $TMPC
+    log_file $TMPC
+    test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
+}
+
+test_host_cpp(){
+    log test_host_cpp "$@"
+    cat > $TMPC
+    log_file $TMPC
+    test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
+}
+
+check_host_cppflags(){
+    log check_host_cppflags "$@"
+    test_host_cpp "$@" <<EOF && append host_cppflags "$@"
+#include <stdlib.h>
+EOF
+}
+
+check_host_cflags(){
+    log check_host_cflags "$@"
+    set -- $($host_cflags_filter "$@")
+    test_host_cc "$@" <<EOF && append host_cflags "$@"
+int x;
+EOF
+}
+
+test_host_cpp_condition(){
+    log test_host_cpp_condition "$@"
+    header=$1
+    condition=$2
+    shift 2
+    test_host_cpp "$@" <<EOF
+#include <$header>
+#if !($condition)
+#error "unsatisfied condition: $condition"
+#endif
+EOF
+}
+
+check_host_cpp_condition(){
+    log check_host_cpp_condition "$@"
+    name=$1
+    shift 1
+    disable $name
+    test_host_cpp_condition "$@" && enable $name
+}
+
+cp_if_changed(){
+    cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
+    mkdir -p "$(dirname $2)"
+    cp -f "$1" "$2"
+}
+
+# CONFIG_LIST contains configurable options, while HAVE_LIST is for
+# system-dependent things.
+
+AVCODEC_COMPONENTS="
+    bsfs
+    decoders
+    encoders
+    hwaccels
+    parsers
+"
+
+AVDEVICE_COMPONENTS="
+    indevs
+    outdevs
+"
+
+AVFILTER_COMPONENTS="
+    filters
+"
+
+AVFORMAT_COMPONENTS="
+    demuxers
+    muxers
+    protocols
+"
+
+COMPONENT_LIST="
+    $AVCODEC_COMPONENTS
+    $AVDEVICE_COMPONENTS
+    $AVFILTER_COMPONENTS
+    $AVFORMAT_COMPONENTS
+"
+
+EXAMPLE_LIST="
+    avio_dir_cmd_example
+    avio_reading_example
+    decode_audio_example
+    decode_video_example
+    demuxing_decoding_example
+    encode_audio_example
+    encode_video_example
+    extract_mvs_example
+    filter_audio_example
+    filtering_audio_example
+    filtering_video_example
+    http_multiclient_example
+    hw_decode_example
+    metadata_example
+    muxing_example
+    qsvdec_example
+    remuxing_example
+    resampling_audio_example
+    scaling_video_example
+    transcode_aac_example
+    transcoding_example
+    vaapi_encode_example
+    vaapi_transcode_example
+"
+
+EXTERNAL_AUTODETECT_LIBRARY_LIST="
+    alsa
+    appkit
+    avfoundation
+    bzlib
+    coreimage
+    iconv
+    libxcb
+    libxcb_shm
+    libxcb_shape
+    libxcb_xfixes
+    lzma
+    schannel
+    sdl2
+    securetransport
+    sndio
+    xlib
+    zlib
+"
+
+EXTERNAL_LIBRARY_GPL_LIST="
+    avisynth
+    frei0r
+    libcdio
+    libdavs2
+    librubberband
+    libvidstab
+    libx264
+    libx265
+    libxavs
+    libxavs2
+    libxvid
+"
+
+EXTERNAL_LIBRARY_NONFREE_LIST="
+    decklink
+    libfdk_aac
+    openssl
+    libtls
+"
+
+EXTERNAL_LIBRARY_VERSION3_LIST="
+    gmp
+    libaribb24
+    liblensfun
+    libopencore_amrnb
+    libopencore_amrwb
+    libvmaf
+    libvo_amrwbenc
+    mbedtls
+    rkmpp
+"
+
+EXTERNAL_LIBRARY_GPLV3_LIST="
+    libsmbclient
+"
+
+EXTERNAL_LIBRARY_LIST="
+    $EXTERNAL_LIBRARY_GPL_LIST
+    $EXTERNAL_LIBRARY_NONFREE_LIST
+    $EXTERNAL_LIBRARY_VERSION3_LIST
+    $EXTERNAL_LIBRARY_GPLV3_LIST
+    chromaprint
+    gcrypt
+    gnutls
+    jni
+    ladspa
+    libaom
+    libass
+    libbluray
+    libbs2b
+    libcaca
+    libcelt
+    libcodec2
+    libdav1d
+    libdc1394
+    libdrm
+    libflite
+    libfontconfig
+    libfreetype
+    libfribidi
+    libgme
+    libgsm
+    libiec61883
+    libilbc
+    libjack
+    libklvanc
+    libkvazaar
+    libmodplug
+    libmp3lame
+    libmysofa
+    libopencv
+    libopenh264
+    libopenjpeg
+    libopenmpt
+    libopus
+    libpulse
+    librsvg
+    librtmp
+    libshine
+    libsmbclient
+    libsnappy
+    libsoxr
+    libspeex
+    libsrt
+    libssh
+    libtensorflow
+    libtesseract
+    libtheora
+    libtwolame
+    libv4l2
+    libvorbis
+    libvpx
+    libwavpack
+    libwebp
+    libxml2
+    libzimg
+    libzmq
+    libzvbi
+    lv2
+    mediacodec
+    openal
+    opengl
+    pocketsphinx
+    vapoursynth
+"
+
+HWACCEL_AUTODETECT_LIBRARY_LIST="
+    amf
+    audiotoolbox
+    crystalhd
+    cuda
+    cuda_llvm
+    cuvid
+    d3d11va
+    dxva2
+    ffnvcodec
+    nvdec
+    nvenc
+    vaapi
+    vdpau
+    videotoolbox
+    v4l2_m2m
+    xvmc
+"
+
+# catchall list of things that require external libs to link
+EXTRALIBS_LIST="
+    cpu_init
+    cws2fws
+"
+
+HWACCEL_LIBRARY_NONFREE_LIST="
+    cuda_nvcc
+    cuda_sdk
+    libnpp
+"
+
+HWACCEL_LIBRARY_LIST="
+    $HWACCEL_LIBRARY_NONFREE_LIST
+    libmfx
+    mmal
+    omx
+    opencl
+"
+
+DOCUMENT_LIST="
+    doc
+    htmlpages
+    manpages
+    podpages
+    txtpages
+"
+
+FEATURE_LIST="
+    ftrapv
+    gray
+    hardcoded_tables
+    omx_rpi
+    runtime_cpudetect
+    safe_bitstream_reader
+    shared
+    small
+    static
+    swscale_alpha
+"
+
+# this list should be kept in linking order
+LIBRARY_LIST="
+    avdevice
+    avfilter
+    swscale
+    postproc
+    avformat
+    avcodec
+    swresample
+    avresample
+    avutil
+"
+
+LICENSE_LIST="
+    gpl
+    nonfree
+    version3
+"
+
+PROGRAM_LIST="
+    ffplay
+    ffprobe
+    ffmpeg
+"
+
+SUBSYSTEM_LIST="
+    dct
+    dwt
+    error_resilience
+    faan
+    fast_unaligned
+    fft
+    lsp
+    lzo
+    mdct
+    pixelutils
+    network
+    rdft
+"
+
+# COMPONENT_LIST needs to come last to ensure correct dependency checking
+CONFIG_LIST="
+    $DOCUMENT_LIST
+    $EXAMPLE_LIST
+    $EXTERNAL_LIBRARY_LIST
+    $EXTERNAL_AUTODETECT_LIBRARY_LIST
+    $HWACCEL_LIBRARY_LIST
+    $HWACCEL_AUTODETECT_LIBRARY_LIST
+    $FEATURE_LIST
+    $LICENSE_LIST
+    $LIBRARY_LIST
+    $PROGRAM_LIST
+    $SUBSYSTEM_LIST
+    autodetect
+    fontconfig
+    linux_perf
+    memory_poisoning
+    neon_clobber_test
+    ossfuzz
+    pic
+    thumb
+    valgrind_backtrace
+    xmm_clobber_test
+    $COMPONENT_LIST
+"
+
+THREADS_LIST="
+    pthreads
+    os2threads
+    w32threads
+"
+
+ATOMICS_LIST="
+    atomics_gcc
+    atomics_suncc
+    atomics_win32
+"
+
+AUTODETECT_LIBS="
+    $EXTERNAL_AUTODETECT_LIBRARY_LIST
+    $HWACCEL_AUTODETECT_LIBRARY_LIST
+    $THREADS_LIST
+"
+
+ARCH_LIST="
+    aarch64
+    alpha
+    arm
+    avr32
+    avr32_ap
+    avr32_uc
+    bfin
+    ia64
+    m68k
+    mips
+    mips64
+    parisc
+    ppc
+    ppc64
+    s390
+    sh4
+    sparc
+    sparc64
+    tilegx
+    tilepro
+    tomi
+    x86
+    x86_32
+    x86_64
+"
+
+ARCH_EXT_LIST_ARM="
+    armv5te
+    armv6
+    armv6t2
+    armv8
+    neon
+    vfp
+    vfpv3
+    setend
+"
+
+ARCH_EXT_LIST_MIPS="
+    mipsfpu
+    mips32r2
+    mips32r5
+    mips64r2
+    mips32r6
+    mips64r6
+    mipsdsp
+    mipsdspr2
+    msa
+    msa2
+"
+
+ARCH_EXT_LIST_LOONGSON="
+    loongson2
+    loongson3
+    mmi
+"
+
+ARCH_EXT_LIST_X86_SIMD="
+    aesni
+    amd3dnow
+    amd3dnowext
+    avx
+    avx2
+    avx512
+    fma3
+    fma4
+    mmx
+    mmxext
+    sse
+    sse2
+    sse3
+    sse4
+    sse42
+    ssse3
+    xop
+"
+
+ARCH_EXT_LIST_PPC="
+    altivec
+    dcbzl
+    ldbrx
+    power8
+    ppc4xx
+    vsx
+"
+
+ARCH_EXT_LIST_X86="
+    $ARCH_EXT_LIST_X86_SIMD
+    cpunop
+    i686
+"
+
+ARCH_EXT_LIST="
+    $ARCH_EXT_LIST_ARM
+    $ARCH_EXT_LIST_PPC
+    $ARCH_EXT_LIST_X86
+    $ARCH_EXT_LIST_MIPS
+    $ARCH_EXT_LIST_LOONGSON
+"
+
+ARCH_FEATURES="
+    aligned_stack
+    fast_64bit
+    fast_clz
+    fast_cmov
+    local_aligned
+    simd_align_16
+    simd_align_32
+    simd_align_64
+"
+
+BUILTIN_LIST="
+    atomic_cas_ptr
+    machine_rw_barrier
+    MemoryBarrier
+    mm_empty
+    rdtsc
+    sem_timedwait
+    sync_val_compare_and_swap
+"
+HAVE_LIST_CMDLINE="
+    inline_asm
+    symver
+    x86asm
+"
+
+HAVE_LIST_PUB="
+    bigendian
+    fast_unaligned
+"
+
+HEADERS_LIST="
+    arpa_inet_h
+    asm_types_h
+    cdio_paranoia_h
+    cdio_paranoia_paranoia_h
+    cuda_h
+    dispatch_dispatch_h
+    dev_bktr_ioctl_bt848_h
+    dev_bktr_ioctl_meteor_h
+    dev_ic_bt8xx_h
+    dev_video_bktr_ioctl_bt848_h
+    dev_video_meteor_ioctl_meteor_h
+    direct_h
+    dirent_h
+    dxgidebug_h
+    dxva_h
+    ES2_gl_h
+    gsm_h
+    io_h
+    linux_perf_event_h
+    machine_ioctl_bt848_h
+    machine_ioctl_meteor_h
+    malloc_h
+    opencv2_core_core_c_h
+    OpenGL_gl3_h
+    poll_h
+    sys_param_h
+    sys_resource_h
+    sys_select_h
+    sys_soundcard_h
+    sys_time_h
+    sys_un_h
+    sys_videoio_h
+    termios_h
+    udplite_h
+    unistd_h
+    valgrind_valgrind_h
+    windows_h
+    winsock2_h
+"
+
+INTRINSICS_LIST="
+    intrinsics_neon
+"
+
+COMPLEX_FUNCS="
+    cabs
+    cexp
+"
+
+MATH_FUNCS="
+    atanf
+    atan2f
+    cbrt
+    cbrtf
+    copysign
+    cosf
+    erf
+    exp2
+    exp2f
+    expf
+    hypot
+    isfinite
+    isinf
+    isnan
+    ldexpf
+    llrint
+    llrintf
+    log2
+    log2f
+    log10f
+    lrint
+    lrintf
+    powf
+    rint
+    round
+    roundf
+    sinf
+    trunc
+    truncf
+"
+
+SYSTEM_FEATURES="
+    dos_paths
+    libc_msvcrt
+    MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
+    section_data_rel_ro
+    threads
+    uwp
+    winrt
+"
+
+SYSTEM_FUNCS="
+    access
+    aligned_malloc
+    arc4random
+    clock_gettime
+    closesocket
+    CommandLineToArgvW
+    fcntl
+    getaddrinfo
+    gethrtime
+    getopt
+    GetProcessAffinityMask
+    GetProcessMemoryInfo
+    GetProcessTimes
+    getrusage
+    GetSystemTimeAsFileTime
+    gettimeofday
+    glob
+    glXGetProcAddress
+    gmtime_r
+    inet_aton
+    isatty
+    kbhit
+    localtime_r
+    lstat
+    lzo1x_999_compress
+    mach_absolute_time
+    MapViewOfFile
+    memalign
+    mkstemp
+    mmap
+    mprotect
+    nanosleep
+    PeekNamedPipe
+    posix_memalign
+    pthread_cancel
+    sched_getaffinity
+    SecItemImport
+    SetConsoleTextAttribute
+    SetConsoleCtrlHandler
+    setmode
+    setrlimit
+    Sleep
+    strerror_r
+    sysconf
+    sysctl
+    usleep
+    UTGetOSTypeFromString
+    VirtualAlloc
+    wglGetProcAddress
+"
+
+SYSTEM_LIBRARIES="
+    bcrypt
+    vaapi_drm
+    vaapi_x11
+    vdpau_x11
+"
+
+TOOLCHAIN_FEATURES="
+    as_arch_directive
+    as_dn_directive
+    as_fpu_directive
+    as_func
+    as_object_arch
+    asm_mod_q
+    blocks_extension
+    ebp_available
+    ebx_available
+    gnu_as
+    gnu_windres
+    ibm_asm
+    inline_asm_direct_symbol_refs
+    inline_asm_labels
+    inline_asm_nonlocal_labels
+    pragma_deprecated
+    rsync_contimeout
+    symver_asm_label
+    symver_gnu_asm
+    vfp_args
+    xform_asm
+    xmm_clobbers
+"
+
+TYPES_LIST="
+    kCMVideoCodecType_HEVC
+    kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
+    socklen_t
+    struct_addrinfo
+    struct_group_source_req
+    struct_ip_mreq_source
+    struct_ipv6_mreq
+    struct_msghdr_msg_flags
+    struct_pollfd
+    struct_rusage_ru_maxrss
+    struct_sctp_event_subscribe
+    struct_sockaddr_in6
+    struct_sockaddr_sa_len
+    struct_sockaddr_storage
+    struct_stat_st_mtim_tv_nsec
+    struct_v4l2_frmivalenum_discrete
+"
+
+HAVE_LIST="
+    $ARCH_EXT_LIST
+    $(add_suffix _external $ARCH_EXT_LIST)
+    $(add_suffix _inline   $ARCH_EXT_LIST)
+    $ARCH_FEATURES
+    $BUILTIN_LIST
+    $COMPLEX_FUNCS
+    $HAVE_LIST_CMDLINE
+    $HAVE_LIST_PUB
+    $HEADERS_LIST
+    $INTRINSICS_LIST
+    $MATH_FUNCS
+    $SYSTEM_FEATURES
+    $SYSTEM_FUNCS
+    $SYSTEM_LIBRARIES
+    $THREADS_LIST
+    $TOOLCHAIN_FEATURES
+    $TYPES_LIST
+    makeinfo
+    makeinfo_html
+    opencl_d3d11
+    opencl_drm_arm
+    opencl_drm_beignet
+    opencl_dxva2
+    opencl_vaapi_beignet
+    opencl_vaapi_intel_media
+    perl
+    pod2man
+    texi2html
+"
+
+# options emitted with CONFIG_ prefix but not available on the command line
+CONFIG_EXTRA="
+    aandcttables
+    ac3dsp
+    adts_header
+    audio_frame_queue
+    audiodsp
+    blockdsp
+    bswapdsp
+    cabac
+    cbs
+    cbs_av1
+    cbs_h264
+    cbs_h265
+    cbs_jpeg
+    cbs_mpeg2
+    cbs_vp9
+    dirac_parse
+    dnn
+    dvprofile
+    exif
+    faandct
+    faanidct
+    fdctdsp
+    flacdsp
+    fmtconvert
+    frame_thread_encoder
+    g722dsp
+    golomb
+    gplv3
+    h263dsp
+    h264chroma
+    h264dsp
+    h264parse
+    h264pred
+    h264qpel
+    hevcparse
+    hpeldsp
+    huffman
+    huffyuvdsp
+    huffyuvencdsp
+    idctdsp
+    iirfilter
+    mdct15
+    intrax8
+    iso_media
+    ividsp
+    jpegtables
+    lgplv3
+    libx262
+    llauddsp
+    llviddsp
+    llvidencdsp
+    lpc
+    lzf
+    me_cmp
+    mpeg_er
+    mpegaudio
+    mpegaudiodsp
+    mpegaudioheader
+    mpegvideo
+    mpegvideoenc
+    mss34dsp
+    pixblockdsp
+    qpeldsp
+    qsv
+    qsvdec
+    qsvenc
+    qsvvpp
+    rangecoder
+    riffdec
+    riffenc
+    rtpdec
+    rtpenc_chain
+    rv34dsp
+    scene_sad
+    sinewin
+    snappy
+    srtp
+    startcode
+    texturedsp
+    texturedspenc
+    tpeldsp
+    vaapi_1
+    vaapi_encode
+    vc1dsp
+    videodsp
+    vp3dsp
+    vp56dsp
+    vp8dsp
+    wma_freqs
+    wmv2dsp
+"
+
+CMDLINE_SELECT="
+    $ARCH_EXT_LIST
+    $CONFIG_LIST
+    $HAVE_LIST_CMDLINE
+    $THREADS_LIST
+    asm
+    cross_compile
+    debug
+    extra_warnings
+    logging
+    lto
+    optimizations
+    rpath
+    stripping
+"
+
+PATHS_LIST="
+    bindir
+    datadir
+    docdir
+    incdir
+    libdir
+    mandir
+    pkgconfigdir
+    prefix
+    shlibdir
+    install_name_dir
+"
+
+CMDLINE_SET="
+    $PATHS_LIST
+    ar
+    arch
+    as
+    assert_level
+    build_suffix
+    cc
+    objcc
+    cpu
+    cross_prefix
+    custom_allocator
+    cxx
+    dep_cc
+    doxygen
+    env
+    extra_version
+    gas
+    host_cc
+    host_cflags
+    host_extralibs
+    host_ld
+    host_ldflags
+    host_os
+    ignore_tests
+    install
+    ld
+    ln_s
+    logfile
+    malloc_prefix
+    nm
+    optflags
+    nvcc
+    nvccflags
+    pkg_config
+    pkg_config_flags
+    progs_suffix
+    random_seed
+    ranlib
+    samples
+    strip
+    sws_max_filter_size
+    sysinclude
+    sysroot
+    target_exec
+    target_os
+    target_path
+    target_samples
+    tempprefix
+    toolchain
+    valgrind
+    windres
+    x86asmexe
+"
+
+CMDLINE_APPEND="
+    extra_cflags
+    extra_cxxflags
+    extra_objcflags
+    host_cppflags
+"
+
+# code dependency declarations
+
+# architecture extensions
+
+armv5te_deps="arm"
+armv6_deps="arm"
+armv6t2_deps="arm"
+armv8_deps="aarch64"
+neon_deps_any="aarch64 arm"
+intrinsics_neon_deps="neon"
+vfp_deps_any="aarch64 arm"
+vfpv3_deps="vfp"
+setend_deps="arm"
+
+map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
+
+altivec_deps="ppc"
+dcbzl_deps="ppc"
+ldbrx_deps="ppc"
+ppc4xx_deps="ppc"
+vsx_deps="altivec"
+power8_deps="vsx"
+
+loongson2_deps="mips"
+loongson3_deps="mips"
+mips32r2_deps="mips"
+mips32r5_deps="mips"
+mips32r6_deps="mips"
+mips64r2_deps="mips"
+mips64r6_deps="mips"
+mipsfpu_deps="mips"
+mipsdsp_deps="mips"
+mipsdspr2_deps="mips"
+mmi_deps="mips"
+msa_deps="mipsfpu"
+msa2_deps="msa"
+
+cpunop_deps="i686"
+x86_64_select="i686"
+x86_64_suggest="fast_cmov"
+
+amd3dnow_deps="mmx"
+amd3dnowext_deps="amd3dnow"
+i686_deps="x86"
+mmx_deps="x86"
+mmxext_deps="mmx"
+sse_deps="mmxext"
+sse2_deps="sse"
+sse3_deps="sse2"
+ssse3_deps="sse3"
+sse4_deps="ssse3"
+sse42_deps="sse4"
+aesni_deps="sse42"
+avx_deps="sse42"
+xop_deps="avx"
+fma3_deps="avx"
+fma4_deps="avx"
+avx2_deps="avx"
+avx512_deps="avx2"
+
+mmx_external_deps="x86asm"
+mmx_inline_deps="inline_asm x86"
+mmx_suggest="mmx_external mmx_inline"
+
+for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
+    eval dep=\$${ext}_deps
+    eval ${ext}_external_deps='"${dep}_external"'
+    eval ${ext}_inline_deps='"${dep}_inline"'
+    eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
+done
+
+aligned_stack_if_any="aarch64 ppc x86"
+fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
+fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
+fast_unaligned_if_any="aarch64 ppc x86"
+simd_align_16_if_any="altivec neon sse"
+simd_align_32_if_any="avx"
+simd_align_64_if_any="avx512"
+
+# system capabilities
+linux_perf_deps="linux_perf_event_h"
+symver_if_any="symver_asm_label symver_gnu_asm"
+valgrind_backtrace_conflict="optimizations"
+valgrind_backtrace_deps="valgrind_valgrind_h"
+
+# threading support
+atomics_gcc_if="sync_val_compare_and_swap"
+atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
+atomics_win32_if="MemoryBarrier"
+atomics_native_if_any="$ATOMICS_LIST"
+w32threads_deps="atomics_native"
+threads_if_any="$THREADS_LIST"
+
+# subsystems
+cbs_av1_select="cbs"
+cbs_h264_select="cbs"
+cbs_h265_select="cbs"
+cbs_jpeg_select="cbs"
+cbs_mpeg2_select="cbs"
+cbs_vp9_select="cbs"
+dct_select="rdft"
+dirac_parse_select="golomb"
+dnn_suggest="libtensorflow"
+error_resilience_select="me_cmp"
+faandct_deps="faan"
+faandct_select="fdctdsp"
+faanidct_deps="faan"
+faanidct_select="idctdsp"
+h264dsp_select="startcode"
+hevcparse_select="golomb"
+frame_thread_encoder_deps="encoders threads"
+intrax8_select="blockdsp idctdsp"
+mdct_select="fft"
+mdct15_select="fft"
+me_cmp_select="fdctdsp idctdsp pixblockdsp"
+mpeg_er_select="error_resilience"
+mpegaudio_select="mpegaudiodsp mpegaudioheader"
+mpegaudiodsp_select="dct"
+mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
+mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
+vc1dsp_select="h264chroma qpeldsp startcode"
+rdft_select="fft"
+
+# decoders / encoders
+aac_decoder_select="adts_header mdct15 mdct sinewin"
+aac_fixed_decoder_select="adts_header mdct sinewin"
+aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
+aac_latm_decoder_select="aac_decoder aac_latm_parser"
+ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
+ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
+ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
+ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
+adpcm_g722_decoder_select="g722dsp"
+adpcm_g722_encoder_select="g722dsp"
+aic_decoder_select="golomb idctdsp"
+alac_encoder_select="lpc"
+als_decoder_select="bswapdsp"
+amrnb_decoder_select="lsp"
+amrwb_decoder_select="lsp"
+amv_decoder_select="sp5x_decoder exif"
+amv_encoder_select="jpegtables mpegvideoenc"
+ape_decoder_select="bswapdsp llauddsp"
+apng_decoder_deps="zlib"
+apng_encoder_deps="zlib"
+apng_encoder_select="llvidencdsp"
+aptx_decoder_select="audio_frame_queue"
+aptx_encoder_select="audio_frame_queue"
+aptx_hd_decoder_select="audio_frame_queue"
+aptx_hd_encoder_select="audio_frame_queue"
+asv1_decoder_select="blockdsp bswapdsp idctdsp"
+asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
+asv2_decoder_select="blockdsp bswapdsp idctdsp"
+asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
+atrac1_decoder_select="mdct sinewin"
+atrac3_decoder_select="mdct"
+atrac3p_decoder_select="mdct sinewin"
+atrac9_decoder_select="mdct"
+avrn_decoder_select="exif jpegtables"
+bink_decoder_select="blockdsp hpeldsp"
+binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
+binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
+cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
+clearvideo_decoder_select="idctdsp"
+cllc_decoder_select="bswapdsp"
+comfortnoise_encoder_select="lpc"
+cook_decoder_select="audiodsp mdct sinewin"
+cscd_decoder_select="lzo"
+cscd_decoder_suggest="zlib"
+dca_decoder_select="mdct"
+dds_decoder_select="texturedsp"
+dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
+dnxhd_decoder_select="blockdsp idctdsp"
+dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
+dolby_e_decoder_select="mdct"
+dvvideo_decoder_select="dvprofile idctdsp"
+dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
+dxa_decoder_deps="zlib"
+dxv_decoder_select="lzf texturedsp"
+eac3_decoder_select="ac3_decoder"
+eac3_encoder_select="ac3_encoder"
+eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
+eatgq_decoder_select="aandcttables"
+eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
+exr_decoder_deps="zlib"
+ffv1_decoder_select="rangecoder"
+ffv1_encoder_select="rangecoder"
+ffvhuff_decoder_select="huffyuv_decoder"
+ffvhuff_encoder_select="huffyuv_encoder"
+fic_decoder_select="golomb"
+flac_decoder_select="flacdsp"
+flac_encoder_select="bswapdsp flacdsp lpc"
+flashsv2_decoder_deps="zlib"
+flashsv2_encoder_deps="zlib"
+flashsv_decoder_deps="zlib"
+flashsv_encoder_deps="zlib"
+flv_decoder_select="h263_decoder"
+flv_encoder_select="h263_encoder"
+fourxm_decoder_select="blockdsp bswapdsp"
+fraps_decoder_select="bswapdsp huffman"
+g2m_decoder_deps="zlib"
+g2m_decoder_select="blockdsp idctdsp jpegtables"
+g729_decoder_select="audiodsp"
+h261_decoder_select="mpegvideo"
+h261_encoder_select="mpegvideoenc"
+h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
+h263_encoder_select="h263dsp mpegvideoenc"
+h263i_decoder_select="h263_decoder"
+h263p_decoder_select="h263_decoder"
+h263p_encoder_select="h263_encoder"
+h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
+h264_decoder_suggest="error_resilience"
+hap_decoder_select="snappy texturedsp"
+hap_encoder_deps="libsnappy"
+hap_encoder_select="texturedspenc"
+hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
+huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
+huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
+hymt_decoder_select="huffyuv_decoder"
+iac_decoder_select="imc_decoder"
+imc_decoder_select="bswapdsp fft mdct sinewin"
+indeo3_decoder_select="hpeldsp"
+indeo4_decoder_select="ividsp"
+indeo5_decoder_select="ividsp"
+interplay_video_decoder_select="hpeldsp"
+jpegls_decoder_select="mjpeg_decoder"
+jv_decoder_select="blockdsp"
+lagarith_decoder_select="llviddsp"
+ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
+lscr_decoder_deps="zlib"
+magicyuv_decoder_select="llviddsp"
+magicyuv_encoder_select="llvidencdsp"
+mdec_decoder_select="blockdsp idctdsp mpegvideo"
+metasound_decoder_select="lsp mdct sinewin"
+mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
+mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
+mjpeg_encoder_select="jpegtables mpegvideoenc"
+mjpegb_decoder_select="mjpeg_decoder"
+mlp_decoder_select="mlp_parser"
+mlp_encoder_select="lpc audio_frame_queue"
+motionpixels_decoder_select="bswapdsp"
+mp1_decoder_select="mpegaudio"
+mp1float_decoder_select="mpegaudio"
+mp2_decoder_select="mpegaudio"
+mp2float_decoder_select="mpegaudio"
+mp3_decoder_select="mpegaudio"
+mp3adu_decoder_select="mpegaudio"
+mp3adufloat_decoder_select="mpegaudio"
+mp3float_decoder_select="mpegaudio"
+mp3on4_decoder_select="mpegaudio"
+mp3on4float_decoder_select="mpegaudio"
+mpc7_decoder_select="bswapdsp mpegaudiodsp"
+mpc8_decoder_select="mpegaudiodsp"
+mpegvideo_decoder_select="mpegvideo"
+mpeg1video_decoder_select="mpegvideo"
+mpeg1video_encoder_select="mpegvideoenc h263dsp"
+mpeg2video_decoder_select="mpegvideo"
+mpeg2video_encoder_select="mpegvideoenc h263dsp"
+mpeg4_decoder_select="h263_decoder mpeg4video_parser"
+mpeg4_encoder_select="h263_encoder"
+msa1_decoder_select="mss34dsp"
+mscc_decoder_deps="zlib"
+msmpeg4v1_decoder_select="h263_decoder"
+msmpeg4v2_decoder_select="h263_decoder"
+msmpeg4v2_encoder_select="h263_encoder"
+msmpeg4v3_decoder_select="h263_decoder"
+msmpeg4v3_encoder_select="h263_encoder"
+mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
+mts2_decoder_select="mss34dsp"
+mwsc_decoder_deps="zlib"
+mxpeg_decoder_select="mjpeg_decoder"
+nellymoser_decoder_select="mdct sinewin"
+nellymoser_encoder_select="audio_frame_queue mdct sinewin"
+nuv_decoder_select="idctdsp lzo"
+on2avc_decoder_select="mdct"
+opus_decoder_deps="swresample"
+opus_decoder_select="mdct15"
+opus_encoder_select="audio_frame_queue mdct15"
+png_decoder_deps="zlib"
+png_encoder_deps="zlib"
+png_encoder_select="llvidencdsp"
+prores_decoder_select="blockdsp idctdsp"
+prores_encoder_select="fdctdsp"
+qcelp_decoder_select="lsp"
+qdm2_decoder_select="mdct rdft mpegaudiodsp"
+ra_144_decoder_select="audiodsp"
+ra_144_encoder_select="audio_frame_queue lpc audiodsp"
+ralf_decoder_select="golomb"
+rasc_decoder_deps="zlib"
+rawvideo_decoder_select="bswapdsp"
+rscc_decoder_deps="zlib"
+rtjpeg_decoder_select="me_cmp"
+rv10_decoder_select="h263_decoder"
+rv10_encoder_select="h263_encoder"
+rv20_decoder_select="h263_decoder"
+rv20_encoder_select="h263_encoder"
+rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
+rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
+screenpresso_decoder_deps="zlib"
+shorten_decoder_select="bswapdsp"
+sipr_decoder_select="lsp"
+snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
+snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
+sonic_decoder_select="golomb rangecoder"
+sonic_encoder_select="golomb rangecoder"
+sonic_ls_encoder_select="golomb rangecoder"
+sp5x_decoder_select="mjpeg_decoder"
+speedhq_decoder_select="mpegvideo"
+srgc_decoder_deps="zlib"
+svq1_decoder_select="hpeldsp"
+svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
+svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
+svq3_decoder_suggest="zlib"
+tak_decoder_select="audiodsp"
+tdsc_decoder_deps="zlib"
+tdsc_decoder_select="mjpeg_decoder"
+theora_decoder_select="vp3_decoder"
+thp_decoder_select="mjpeg_decoder"
+tiff_decoder_suggest="zlib lzma"
+tiff_encoder_suggest="zlib"
+truehd_decoder_select="mlp_parser"
+truehd_encoder_select="lpc audio_frame_queue"
+truemotion2_decoder_select="bswapdsp"
+truespeech_decoder_select="bswapdsp"
+tscc_decoder_deps="zlib"
+twinvq_decoder_select="mdct lsp sinewin"
+txd_decoder_select="texturedsp"
+utvideo_decoder_select="bswapdsp llviddsp"
+utvideo_encoder_select="bswapdsp huffman llvidencdsp"
+vble_decoder_select="llviddsp"
+vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
+vc1image_decoder_select="vc1_decoder"
+vorbis_decoder_select="mdct"
+vorbis_encoder_select="audio_frame_queue mdct"
+vp3_decoder_select="hpeldsp vp3dsp videodsp"
+vp4_decoder_select="vp3_decoder"
+vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
+vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
+vp6a_decoder_select="vp6_decoder"
+vp6f_decoder_select="vp6_decoder"
+vp7_decoder_select="h264pred videodsp vp8dsp"
+vp8_decoder_select="h264pred videodsp vp8dsp"
+vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
+wcmv_decoder_deps="zlib"
+webp_decoder_select="vp8_decoder exif"
+wmalossless_decoder_select="llauddsp"
+wmapro_decoder_select="mdct sinewin wma_freqs"
+wmav1_decoder_select="mdct sinewin wma_freqs"
+wmav1_encoder_select="mdct sinewin wma_freqs"
+wmav2_decoder_select="mdct sinewin wma_freqs"
+wmav2_encoder_select="mdct sinewin wma_freqs"
+wmavoice_decoder_select="lsp rdft dct mdct sinewin"
+wmv1_decoder_select="h263_decoder"
+wmv1_encoder_select="h263_encoder"
+wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
+wmv2_encoder_select="h263_encoder wmv2dsp"
+wmv3_decoder_select="vc1_decoder"
+wmv3image_decoder_select="wmv3_decoder"
+xma1_decoder_select="wmapro_decoder"
+xma2_decoder_select="wmapro_decoder"
+zerocodec_decoder_deps="zlib"
+zlib_decoder_deps="zlib"
+zlib_encoder_deps="zlib"
+zmbv_decoder_deps="zlib"
+zmbv_encoder_deps="zlib"
+
+# hardware accelerators
+crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
+cuda_deps="ffnvcodec"
+cuvid_deps="ffnvcodec"
+d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
+dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
+ffnvcodec_deps_any="libdl LoadLibrary"
+nvdec_deps="ffnvcodec"
+vaapi_x11_deps="xlib"
+videotoolbox_hwaccel_deps="videotoolbox pthreads"
+videotoolbox_hwaccel_extralibs="-framework QuartzCore"
+xvmc_deps="X11_extensions_XvMClib_h"
+
+h263_vaapi_hwaccel_deps="vaapi"
+h263_vaapi_hwaccel_select="h263_decoder"
+h263_videotoolbox_hwaccel_deps="videotoolbox"
+h263_videotoolbox_hwaccel_select="h263_decoder"
+h264_d3d11va_hwaccel_deps="d3d11va"
+h264_d3d11va_hwaccel_select="h264_decoder"
+h264_d3d11va2_hwaccel_deps="d3d11va"
+h264_d3d11va2_hwaccel_select="h264_decoder"
+h264_dxva2_hwaccel_deps="dxva2"
+h264_dxva2_hwaccel_select="h264_decoder"
+h264_nvdec_hwaccel_deps="nvdec"
+h264_nvdec_hwaccel_select="h264_decoder"
+h264_vaapi_hwaccel_deps="vaapi"
+h264_vaapi_hwaccel_select="h264_decoder"
+h264_vdpau_hwaccel_deps="vdpau"
+h264_vdpau_hwaccel_select="h264_decoder"
+h264_videotoolbox_hwaccel_deps="videotoolbox"
+h264_videotoolbox_hwaccel_select="h264_decoder"
+hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
+hevc_d3d11va_hwaccel_select="hevc_decoder"
+hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
+hevc_d3d11va2_hwaccel_select="hevc_decoder"
+hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
+hevc_dxva2_hwaccel_select="hevc_decoder"
+hevc_nvdec_hwaccel_deps="nvdec"
+hevc_nvdec_hwaccel_select="hevc_decoder"
+hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
+hevc_vaapi_hwaccel_select="hevc_decoder"
+hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
+hevc_vdpau_hwaccel_select="hevc_decoder"
+hevc_videotoolbox_hwaccel_deps="videotoolbox"
+hevc_videotoolbox_hwaccel_select="hevc_decoder"
+mjpeg_nvdec_hwaccel_deps="nvdec"
+mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
+mjpeg_vaapi_hwaccel_deps="vaapi"
+mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
+mpeg_xvmc_hwaccel_deps="xvmc"
+mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
+mpeg1_nvdec_hwaccel_deps="nvdec"
+mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
+mpeg1_vdpau_hwaccel_deps="vdpau"
+mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
+mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
+mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
+mpeg1_xvmc_hwaccel_deps="xvmc"
+mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
+mpeg2_d3d11va_hwaccel_deps="d3d11va"
+mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
+mpeg2_d3d11va2_hwaccel_deps="d3d11va"
+mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
+mpeg2_dxva2_hwaccel_deps="dxva2"
+mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
+mpeg2_nvdec_hwaccel_deps="nvdec"
+mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
+mpeg2_vaapi_hwaccel_deps="vaapi"
+mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
+mpeg2_vdpau_hwaccel_deps="vdpau"
+mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
+mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
+mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
+mpeg2_xvmc_hwaccel_deps="xvmc"
+mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
+mpeg4_nvdec_hwaccel_deps="nvdec"
+mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
+mpeg4_vaapi_hwaccel_deps="vaapi"
+mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
+mpeg4_vdpau_hwaccel_deps="vdpau"
+mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
+mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
+mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
+vc1_d3d11va_hwaccel_deps="d3d11va"
+vc1_d3d11va_hwaccel_select="vc1_decoder"
+vc1_d3d11va2_hwaccel_deps="d3d11va"
+vc1_d3d11va2_hwaccel_select="vc1_decoder"
+vc1_dxva2_hwaccel_deps="dxva2"
+vc1_dxva2_hwaccel_select="vc1_decoder"
+vc1_nvdec_hwaccel_deps="nvdec"
+vc1_nvdec_hwaccel_select="vc1_decoder"
+vc1_vaapi_hwaccel_deps="vaapi"
+vc1_vaapi_hwaccel_select="vc1_decoder"
+vc1_vdpau_hwaccel_deps="vdpau"
+vc1_vdpau_hwaccel_select="vc1_decoder"
+vp8_nvdec_hwaccel_deps="nvdec"
+vp8_nvdec_hwaccel_select="vp8_decoder"
+vp8_vaapi_hwaccel_deps="vaapi"
+vp8_vaapi_hwaccel_select="vp8_decoder"
+vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
+vp9_d3d11va_hwaccel_select="vp9_decoder"
+vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
+vp9_d3d11va2_hwaccel_select="vp9_decoder"
+vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
+vp9_dxva2_hwaccel_select="vp9_decoder"
+vp9_nvdec_hwaccel_deps="nvdec"
+vp9_nvdec_hwaccel_select="vp9_decoder"
+vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
+vp9_vaapi_hwaccel_select="vp9_decoder"
+wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
+wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
+wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
+wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
+wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
+wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
+
+# hardware-accelerated codecs
+omx_deps="libdl pthreads"
+omx_rpi_select="omx"
+qsv_deps="libmfx"
+qsvdec_select="qsv"
+qsvenc_select="qsv"
+qsvvpp_select="qsv"
+vaapi_encode_deps="vaapi"
+v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
+
+hwupload_cuda_filter_deps="ffnvcodec"
+scale_npp_filter_deps="ffnvcodec libnpp"
+scale_cuda_filter_deps="ffnvcodec"
+scale_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
+thumbnail_cuda_filter_deps="ffnvcodec"
+thumbnail_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
+transpose_npp_filter_deps="ffnvcodec libnpp"
+
+amf_deps_any="libdl LoadLibrary"
+nvenc_deps="ffnvcodec"
+nvenc_deps_any="libdl LoadLibrary"
+nvenc_encoder_deps="nvenc"
+
+h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
+h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
+h264_amf_encoder_deps="amf"
+h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
+h264_cuvid_decoder_deps="cuvid"
+h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
+h264_mediacodec_decoder_deps="mediacodec"
+h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
+h264_mmal_decoder_deps="mmal"
+h264_nvenc_encoder_deps="nvenc"
+h264_omx_encoder_deps="omx"
+h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
+h264_qsv_encoder_select="qsvenc"
+h264_rkmpp_decoder_deps="rkmpp"
+h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
+h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
+h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
+h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
+h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
+hevc_amf_encoder_deps="amf"
+hevc_cuvid_decoder_deps="cuvid"
+hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
+hevc_mediacodec_decoder_deps="mediacodec"
+hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
+hevc_nvenc_encoder_deps="nvenc"
+hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
+hevc_qsv_encoder_select="hevcparse qsvenc"
+hevc_rkmpp_decoder_deps="rkmpp"
+hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
+hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
+hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
+hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
+hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
+hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
+mjpeg_cuvid_decoder_deps="cuvid"
+mjpeg_qsv_encoder_deps="libmfx"
+mjpeg_qsv_encoder_select="qsvenc"
+mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
+mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
+mpeg1_cuvid_decoder_deps="cuvid"
+mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
+mpeg2_crystalhd_decoder_select="crystalhd"
+mpeg2_cuvid_decoder_deps="cuvid"
+mpeg2_mmal_decoder_deps="mmal"
+mpeg2_mediacodec_decoder_deps="mediacodec"
+mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
+mpeg2_qsv_encoder_select="qsvenc"
+mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
+mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
+mpeg4_crystalhd_decoder_select="crystalhd"
+mpeg4_cuvid_decoder_deps="cuvid"
+mpeg4_mediacodec_decoder_deps="mediacodec"
+mpeg4_mmal_decoder_deps="mmal"
+mpeg4_omx_encoder_deps="omx"
+mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
+mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
+msmpeg4_crystalhd_decoder_select="crystalhd"
+nvenc_h264_encoder_select="h264_nvenc_encoder"
+nvenc_hevc_encoder_select="hevc_nvenc_encoder"
+vc1_crystalhd_decoder_select="crystalhd"
+vc1_cuvid_decoder_deps="cuvid"
+vc1_mmal_decoder_deps="mmal"
+vc1_qsv_decoder_select="qsvdec vc1_parser"
+vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
+vp8_cuvid_decoder_deps="cuvid"
+vp8_mediacodec_decoder_deps="mediacodec"
+vp8_qsv_decoder_select="qsvdec vp8_parser"
+vp8_rkmpp_decoder_deps="rkmpp"
+vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
+vp8_vaapi_encoder_select="vaapi_encode"
+vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
+vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
+vp9_cuvid_decoder_deps="cuvid"
+vp9_mediacodec_decoder_deps="mediacodec"
+vp9_rkmpp_decoder_deps="rkmpp"
+vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
+vp9_vaapi_encoder_select="vaapi_encode"
+vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
+wmv3_crystalhd_decoder_select="crystalhd"
+
+# parsers
+aac_parser_select="adts_header"
+av1_parser_select="cbs_av1"
+h264_parser_select="golomb h264dsp h264parse"
+hevc_parser_select="hevcparse"
+mpegaudio_parser_select="mpegaudioheader"
+mpegvideo_parser_select="mpegvideo"
+mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
+vc1_parser_select="vc1dsp"
+
+# bitstream_filters
+aac_adtstoasc_bsf_select="adts_header"
+av1_frame_split_bsf_select="cbs_av1"
+av1_metadata_bsf_select="cbs_av1"
+eac3_core_bsf_select="ac3_parser"
+filter_units_bsf_select="cbs"
+h264_metadata_bsf_deps="const_nan"
+h264_metadata_bsf_select="cbs_h264"
+h264_redundant_pps_bsf_select="cbs_h264"
+hevc_metadata_bsf_select="cbs_h265"
+mjpeg2jpeg_bsf_select="jpegtables"
+mpeg2_metadata_bsf_select="cbs_mpeg2"
+trace_headers_bsf_select="cbs"
+vp9_metadata_bsf_select="cbs_vp9"
+
+# external libraries
+aac_at_decoder_deps="audiotoolbox"
+aac_at_decoder_select="aac_adtstoasc_bsf"
+ac3_at_decoder_deps="audiotoolbox"
+ac3_at_decoder_select="ac3_parser"
+adpcm_ima_qt_at_decoder_deps="audiotoolbox"
+alac_at_decoder_deps="audiotoolbox"
+amr_nb_at_decoder_deps="audiotoolbox"
+avisynth_deps_any="libdl LoadLibrary"
+avisynth_demuxer_deps="avisynth"
+avisynth_demuxer_select="riffdec"
+eac3_at_decoder_deps="audiotoolbox"
+eac3_at_decoder_select="ac3_parser"
+gsm_ms_at_decoder_deps="audiotoolbox"
+ilbc_at_decoder_deps="audiotoolbox"
+mp1_at_decoder_deps="audiotoolbox"
+mp2_at_decoder_deps="audiotoolbox"
+mp3_at_decoder_deps="audiotoolbox"
+mp1_at_decoder_select="mpegaudioheader"
+mp2_at_decoder_select="mpegaudioheader"
+mp3_at_decoder_select="mpegaudioheader"
+pcm_alaw_at_decoder_deps="audiotoolbox"
+pcm_mulaw_at_decoder_deps="audiotoolbox"
+qdmc_at_decoder_deps="audiotoolbox"
+qdm2_at_decoder_deps="audiotoolbox"
+aac_at_encoder_deps="audiotoolbox"
+aac_at_encoder_select="audio_frame_queue"
+alac_at_encoder_deps="audiotoolbox"
+alac_at_encoder_select="audio_frame_queue"
+ilbc_at_encoder_deps="audiotoolbox"
+ilbc_at_encoder_select="audio_frame_queue"
+pcm_alaw_at_encoder_deps="audiotoolbox"
+pcm_alaw_at_encoder_select="audio_frame_queue"
+pcm_mulaw_at_encoder_deps="audiotoolbox"
+pcm_mulaw_at_encoder_select="audio_frame_queue"
+chromaprint_muxer_deps="chromaprint"
+h264_videotoolbox_encoder_deps="pthreads"
+h264_videotoolbox_encoder_select="videotoolbox_encoder"
+hevc_videotoolbox_encoder_deps="pthreads"
+hevc_videotoolbox_encoder_select="videotoolbox_encoder"
+libaom_av1_decoder_deps="libaom"
+libaom_av1_encoder_deps="libaom"
+libaom_av1_encoder_select="extract_extradata_bsf"
+libaribb24_decoder_deps="libaribb24"
+libcelt_decoder_deps="libcelt"
+libcodec2_decoder_deps="libcodec2"
+libcodec2_encoder_deps="libcodec2"
+libdav1d_decoder_deps="libdav1d"
+libdavs2_decoder_deps="libdavs2"
+libfdk_aac_decoder_deps="libfdk_aac"
+libfdk_aac_encoder_deps="libfdk_aac"
+libfdk_aac_encoder_select="audio_frame_queue"
+libgme_demuxer_deps="libgme"
+libgsm_decoder_deps="libgsm"
+libgsm_encoder_deps="libgsm"
+libgsm_ms_decoder_deps="libgsm"
+libgsm_ms_encoder_deps="libgsm"
+libilbc_decoder_deps="libilbc"
+libilbc_encoder_deps="libilbc"
+libkvazaar_encoder_deps="libkvazaar"
+libmodplug_demuxer_deps="libmodplug"
+libmp3lame_encoder_deps="libmp3lame"
+libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
+libopencore_amrnb_decoder_deps="libopencore_amrnb"
+libopencore_amrnb_encoder_deps="libopencore_amrnb"
+libopencore_amrnb_encoder_select="audio_frame_queue"
+libopencore_amrwb_decoder_deps="libopencore_amrwb"
+libopenh264_decoder_deps="libopenh264"
+libopenh264_decoder_select="h264_mp4toannexb_bsf"
+libopenh264_encoder_deps="libopenh264"
+libopenjpeg_decoder_deps="libopenjpeg"
+libopenjpeg_encoder_deps="libopenjpeg"
+libopenmpt_demuxer_deps="libopenmpt"
+libopus_decoder_deps="libopus"
+libopus_encoder_deps="libopus"
+libopus_encoder_select="audio_frame_queue"
+librsvg_decoder_deps="librsvg"
+libshine_encoder_deps="libshine"
+libshine_encoder_select="audio_frame_queue"
+libspeex_decoder_deps="libspeex"
+libspeex_encoder_deps="libspeex"
+libspeex_encoder_select="audio_frame_queue"
+libtheora_encoder_deps="libtheora"
+libtwolame_encoder_deps="libtwolame"
+libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
+libvorbis_decoder_deps="libvorbis"
+libvorbis_encoder_deps="libvorbis libvorbisenc"
+libvorbis_encoder_select="audio_frame_queue"
+libvpx_vp8_decoder_deps="libvpx"
+libvpx_vp8_encoder_deps="libvpx"
+libvpx_vp9_decoder_deps="libvpx"
+libvpx_vp9_encoder_deps="libvpx"
+libwavpack_encoder_deps="libwavpack"
+libwavpack_encoder_select="audio_frame_queue"
+libwebp_encoder_deps="libwebp"
+libwebp_anim_encoder_deps="libwebp"
+libx262_encoder_deps="libx262"
+libx264_encoder_deps="libx264"
+libx264rgb_encoder_deps="libx264 x264_csp_bgr"
+libx264rgb_encoder_select="libx264_encoder"
+libx265_encoder_deps="libx265"
+libxavs_encoder_deps="libxavs"
+libxavs2_encoder_deps="libxavs2"
+libxvid_encoder_deps="libxvid"
+libzvbi_teletext_decoder_deps="libzvbi"
+vapoursynth_demuxer_deps="vapoursynth"
+videotoolbox_suggest="coreservices"
+videotoolbox_deps="corefoundation coremedia corevideo"
+videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
+
+# demuxers / muxers
+ac3_demuxer_select="ac3_parser"
+aiff_muxer_select="iso_media"
+asf_demuxer_select="riffdec"
+asf_o_demuxer_select="riffdec"
+asf_muxer_select="riffenc"
+asf_stream_muxer_select="asf_muxer"
+avi_demuxer_select="iso_media riffdec exif"
+avi_muxer_select="riffenc"
+caf_demuxer_select="iso_media riffdec"
+caf_muxer_select="iso_media"
+dash_muxer_select="mp4_muxer"
+dash_demuxer_deps="libxml2"
+dirac_demuxer_select="dirac_parser"
+dts_demuxer_select="dca_parser"
+dtshd_demuxer_select="dca_parser"
+dv_demuxer_select="dvprofile"
+dv_muxer_select="dvprofile"
+dxa_demuxer_select="riffdec"
+eac3_demuxer_select="ac3_parser"
+f4v_muxer_select="mov_muxer"
+fifo_muxer_deps="threads"
+flac_demuxer_select="flac_parser"
+hds_muxer_select="flv_muxer"
+hls_muxer_select="mpegts_muxer"
+hls_muxer_suggest="gcrypt openssl"
+image2_alias_pix_demuxer_select="image2_demuxer"
+image2_brender_pix_demuxer_select="image2_demuxer"
+ipod_muxer_select="mov_muxer"
+ismv_muxer_select="mov_muxer"
+ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
+matroska_audio_muxer_select="matroska_muxer"
+matroska_demuxer_select="iso_media riffdec"
+matroska_demuxer_suggest="bzlib lzo zlib"
+matroska_muxer_select="iso_media riffenc"
+mmf_muxer_select="riffenc"
+mov_demuxer_select="iso_media riffdec"
+mov_demuxer_suggest="zlib"
+mov_muxer_select="iso_media riffenc rtpenc_chain"
+mp3_demuxer_select="mpegaudio_parser"
+mp3_muxer_select="mpegaudioheader"
+mp4_muxer_select="mov_muxer"
+mpegts_demuxer_select="iso_media"
+mpegts_muxer_select="adts_muxer latm_muxer"
+mpegtsraw_demuxer_select="mpegts_demuxer"
+mxf_d10_muxer_select="mxf_muxer"
+mxf_opatom_muxer_select="mxf_muxer"
+nut_muxer_select="riffenc"
+nuv_demuxer_select="riffdec"
+oga_muxer_select="ogg_muxer"
+ogg_demuxer_select="dirac_parse"
+ogv_muxer_select="ogg_muxer"
+opus_muxer_select="ogg_muxer"
+psp_muxer_select="mov_muxer"
+rtp_demuxer_select="sdp_demuxer"
+rtp_muxer_select="golomb"
+rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
+rtsp_demuxer_select="http_protocol rtpdec"
+rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
+sap_demuxer_select="sdp_demuxer"
+sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
+sdp_demuxer_select="rtpdec"
+smoothstreaming_muxer_select="ismv_muxer"
+spdif_demuxer_select="adts_header"
+spdif_muxer_select="adts_header"
+spx_muxer_select="ogg_muxer"
+swf_demuxer_suggest="zlib"
+tak_demuxer_select="tak_parser"
+tg2_muxer_select="mov_muxer"
+tgp_muxer_select="mov_muxer"
+vobsub_demuxer_select="mpegps_demuxer"
+w64_demuxer_select="wav_demuxer"
+w64_muxer_select="wav_muxer"
+wav_demuxer_select="riffdec"
+wav_muxer_select="riffenc"
+webm_muxer_select="iso_media riffenc"
+webm_dash_manifest_demuxer_select="matroska_demuxer"
+wtv_demuxer_select="mpegts_demuxer riffdec"
+wtv_muxer_select="mpegts_muxer riffenc"
+xmv_demuxer_select="riffdec"
+xwma_demuxer_select="riffdec"
+
+# indevs / outdevs
+android_camera_indev_deps="android camera2ndk mediandk pthreads"
+android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
+alsa_indev_deps="alsa"
+alsa_outdev_deps="alsa"
+avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
+avfoundation_indev_suggest="coregraphics applicationservices"
+avfoundation_indev_extralibs="-framework Foundation"
+bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
+caca_outdev_deps="libcaca"
+decklink_deps_any="libdl LoadLibrary"
+decklink_indev_deps="decklink threads"
+decklink_indev_extralibs="-lstdc++"
+decklink_outdev_deps="decklink threads"
+decklink_outdev_suggest="libklvanc"
+decklink_outdev_extralibs="-lstdc++"
+dshow_indev_deps="IBaseFilter"
+dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
+fbdev_indev_deps="linux_fb_h"
+fbdev_outdev_deps="linux_fb_h"
+gdigrab_indev_deps="CreateDIBSection"
+gdigrab_indev_extralibs="-lgdi32"
+gdigrab_indev_select="bmp_decoder"
+iec61883_indev_deps="libiec61883"
+jack_indev_deps="libjack"
+jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
+kmsgrab_indev_deps="libdrm"
+lavfi_indev_deps="avfilter"
+libcdio_indev_deps="libcdio"
+libdc1394_indev_deps="libdc1394"
+openal_indev_deps="openal"
+opengl_outdev_deps="opengl"
+opengl_outdev_suggest="sdl2"
+oss_indev_deps_any="sys_soundcard_h"
+oss_outdev_deps_any="sys_soundcard_h"
+pulse_indev_deps="libpulse"
+pulse_outdev_deps="libpulse"
+sdl2_outdev_deps="sdl2"
+sndio_indev_deps="sndio"
+sndio_outdev_deps="sndio"
+v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
+v4l2_indev_suggest="libv4l2"
+v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
+v4l2_outdev_suggest="libv4l2"
+vfwcap_indev_deps="vfw32 vfwcap_defines"
+xcbgrab_indev_deps="libxcb"
+xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
+xv_outdev_deps="xlib"
+
+# protocols
+async_protocol_deps="threads"
+bluray_protocol_deps="libbluray"
+ffrtmpcrypt_protocol_conflict="librtmp_protocol"
+ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
+ffrtmpcrypt_protocol_select="tcp_protocol"
+ffrtmphttp_protocol_conflict="librtmp_protocol"
+ffrtmphttp_protocol_select="http_protocol"
+ftp_protocol_select="tcp_protocol"
+gopher_protocol_select="network"
+http_protocol_select="tcp_protocol"
+http_protocol_suggest="zlib"
+httpproxy_protocol_select="tcp_protocol"
+httpproxy_protocol_suggest="zlib"
+https_protocol_select="tls_protocol"
+https_protocol_suggest="zlib"
+icecast_protocol_select="http_protocol"
+mmsh_protocol_select="http_protocol"
+mmst_protocol_select="network"
+rtmp_protocol_conflict="librtmp_protocol"
+rtmp_protocol_select="tcp_protocol"
+rtmp_protocol_suggest="zlib"
+rtmpe_protocol_select="ffrtmpcrypt_protocol"
+rtmpe_protocol_suggest="zlib"
+rtmps_protocol_conflict="librtmp_protocol"
+rtmps_protocol_select="tls_protocol"
+rtmps_protocol_suggest="zlib"
+rtmpt_protocol_select="ffrtmphttp_protocol"
+rtmpt_protocol_suggest="zlib"
+rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
+rtmpte_protocol_suggest="zlib"
+rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
+rtmpts_protocol_suggest="zlib"
+rtp_protocol_select="udp_protocol"
+schannel_conflict="openssl gnutls libtls mbedtls"
+sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
+sctp_protocol_select="network"
+securetransport_conflict="openssl gnutls libtls mbedtls"
+srtp_protocol_select="rtp_protocol srtp"
+tcp_protocol_select="network"
+tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
+tls_protocol_select="tcp_protocol"
+udp_protocol_select="network"
+udplite_protocol_select="network"
+unix_protocol_deps="sys_un_h"
+unix_protocol_select="network"
+
+# external library protocols
+librtmp_protocol_deps="librtmp"
+librtmpe_protocol_deps="librtmp"
+librtmps_protocol_deps="librtmp"
+librtmpt_protocol_deps="librtmp"
+librtmpte_protocol_deps="librtmp"
+libsmbclient_protocol_deps="libsmbclient gplv3"
+libsrt_protocol_deps="libsrt"
+libsrt_protocol_select="network"
+libssh_protocol_deps="libssh"
+libtls_conflict="openssl gnutls mbedtls"
+
+# filters
+afftdn_filter_deps="avcodec"
+afftdn_filter_select="fft"
+afftfilt_filter_deps="avcodec"
+afftfilt_filter_select="fft"
+afir_filter_deps="avcodec"
+afir_filter_select="fft"
+amovie_filter_deps="avcodec avformat"
+aresample_filter_deps="swresample"
+asr_filter_deps="pocketsphinx"
+ass_filter_deps="libass"
+atempo_filter_deps="avcodec"
+atempo_filter_select="rdft"
+avgblur_opencl_filter_deps="opencl"
+azmq_filter_deps="libzmq"
+blackframe_filter_deps="gpl"
+bm3d_filter_deps="avcodec"
+bm3d_filter_select="dct"
+boxblur_filter_deps="gpl"
+boxblur_opencl_filter_deps="opencl gpl"
+bs2b_filter_deps="libbs2b"
+colorkey_opencl_filter_deps="opencl"
+colormatrix_filter_deps="gpl"
+convolution_opencl_filter_deps="opencl"
+convolve_filter_deps="avcodec"
+convolve_filter_select="fft"
+coreimage_filter_deps="coreimage appkit"
+coreimage_filter_extralibs="-framework OpenGL"
+coreimagesrc_filter_deps="coreimage appkit"
+coreimagesrc_filter_extralibs="-framework OpenGL"
+cover_rect_filter_deps="avcodec avformat gpl"
+cropdetect_filter_deps="gpl"
+deconvolve_filter_deps="avcodec"
+deconvolve_filter_select="fft"
+deinterlace_qsv_filter_deps="libmfx"
+deinterlace_vaapi_filter_deps="vaapi"
+delogo_filter_deps="gpl"
+denoise_vaapi_filter_deps="vaapi"
+derain_filter_select="dnn"
+deshake_filter_select="pixelutils"
+dilation_opencl_filter_deps="opencl"
+drawtext_filter_deps="libfreetype"
+drawtext_filter_suggest="libfontconfig libfribidi"
+elbg_filter_deps="avcodec"
+eq_filter_deps="gpl"
+erosion_opencl_filter_deps="opencl"
+fftfilt_filter_deps="avcodec"
+fftfilt_filter_select="rdft"
+fftdnoiz_filter_deps="avcodec"
+fftdnoiz_filter_select="fft"
+find_rect_filter_deps="avcodec avformat gpl"
+firequalizer_filter_deps="avcodec"
+firequalizer_filter_select="rdft"
+flite_filter_deps="libflite"
+framerate_filter_select="scene_sad"
+freezedetect_filter_select="scene_sad"
+frei0r_filter_deps="frei0r libdl"
+frei0r_src_filter_deps="frei0r libdl"
+fspp_filter_deps="gpl"
+geq_filter_deps="gpl"
+histeq_filter_deps="gpl"
+hqdn3d_filter_deps="gpl"
+interlace_filter_deps="gpl"
+kerndeint_filter_deps="gpl"
+ladspa_filter_deps="ladspa libdl"
+lensfun_filter_deps="liblensfun version3"
+lv2_filter_deps="lv2"
+mcdeint_filter_deps="avcodec gpl"
+movie_filter_deps="avcodec avformat"
+mpdecimate_filter_deps="gpl"
+mpdecimate_filter_select="pixelutils"
+minterpolate_filter_select="scene_sad"
+mptestsrc_filter_deps="gpl"
+negate_filter_deps="lut_filter"
+nlmeans_opencl_filter_deps="opencl"
+nnedi_filter_deps="gpl"
+ocr_filter_deps="libtesseract"
+ocv_filter_deps="libopencv"
+openclsrc_filter_deps="opencl"
+overlay_opencl_filter_deps="opencl"
+overlay_qsv_filter_deps="libmfx"
+overlay_qsv_filter_select="qsvvpp"
+owdenoise_filter_deps="gpl"
+pan_filter_deps="swresample"
+perspective_filter_deps="gpl"
+phase_filter_deps="gpl"
+pp7_filter_deps="gpl"
+pp_filter_deps="gpl postproc"
+prewitt_opencl_filter_deps="opencl"
+procamp_vaapi_filter_deps="vaapi"
+program_opencl_filter_deps="opencl"
+pullup_filter_deps="gpl"
+removelogo_filter_deps="avcodec avformat swscale"
+repeatfields_filter_deps="gpl"
+resample_filter_deps="avresample"
+roberts_opencl_filter_deps="opencl"
+rubberband_filter_deps="librubberband"
+sab_filter_deps="gpl swscale"
+scale2ref_filter_deps="swscale"
+scale_filter_deps="swscale"
+scale_qsv_filter_deps="libmfx"
+select_filter_select="scene_sad"
+sharpness_vaapi_filter_deps="vaapi"
+showcqt_filter_deps="avcodec avformat swscale"
+showcqt_filter_suggest="libfontconfig libfreetype"
+showcqt_filter_select="fft"
+showfreqs_filter_deps="avcodec"
+showfreqs_filter_select="fft"
+showspectrum_filter_deps="avcodec"
+showspectrum_filter_select="fft"
+showspectrumpic_filter_deps="avcodec"
+showspectrumpic_filter_select="fft"
+signature_filter_deps="gpl avcodec avformat"
+smartblur_filter_deps="gpl swscale"
+sobel_opencl_filter_deps="opencl"
+sofalizer_filter_deps="libmysofa avcodec"
+sofalizer_filter_select="fft"
+spectrumsynth_filter_deps="avcodec"
+spectrumsynth_filter_select="fft"
+spp_filter_deps="gpl avcodec"
+spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
+sr_filter_deps="avformat swscale"
+sr_filter_select="dnn"
+stereo3d_filter_deps="gpl"
+subtitles_filter_deps="avformat avcodec libass"
+super2xsai_filter_deps="gpl"
+pixfmts_super2xsai_test_deps="super2xsai_filter"
+tinterlace_filter_deps="gpl"
+tinterlace_merge_test_deps="tinterlace_filter"
+tinterlace_pad_test_deps="tinterlace_filter"
+tonemap_filter_deps="const_nan"
+tonemap_opencl_filter_deps="opencl const_nan"
+transpose_opencl_filter_deps="opencl"
+transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
+unsharp_opencl_filter_deps="opencl"
+uspp_filter_deps="gpl avcodec"
+vaguedenoiser_filter_deps="gpl"
+vidstabdetect_filter_deps="libvidstab"
+vidstabtransform_filter_deps="libvidstab"
+libvmaf_filter_deps="libvmaf pthreads"
+zmq_filter_deps="libzmq"
+zoompan_filter_deps="swscale"
+zscale_filter_deps="libzimg const_nan"
+scale_vaapi_filter_deps="vaapi"
+vpp_qsv_filter_deps="libmfx"
+vpp_qsv_filter_select="qsvvpp"
+yadif_cuda_filter_deps="ffnvcodec"
+yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
+
+# examples
+avio_dir_cmd_deps="avformat avutil"
+avio_reading_deps="avformat avcodec avutil"
+decode_audio_example_deps="avcodec avutil"
+decode_video_example_deps="avcodec avutil"
+demuxing_decoding_example_deps="avcodec avformat avutil"
+encode_audio_example_deps="avcodec avutil"
+encode_video_example_deps="avcodec avutil"
+extract_mvs_example_deps="avcodec avformat avutil"
+filter_audio_example_deps="avfilter avutil"
+filtering_audio_example_deps="avfilter avcodec avformat avutil"
+filtering_video_example_deps="avfilter avcodec avformat avutil"
+http_multiclient_example_deps="avformat avutil fork"
+hw_decode_example_deps="avcodec avformat avutil"
+metadata_example_deps="avformat avutil"
+muxing_example_deps="avcodec avformat avutil swscale"
+qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
+remuxing_example_deps="avcodec avformat avutil"
+resampling_audio_example_deps="avutil swresample"
+scaling_video_example_deps="avutil swscale"
+transcode_aac_example_deps="avcodec avformat swresample"
+transcoding_example_deps="avfilter avcodec avformat avutil"
+vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
+vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
+
+# EXTRALIBS_LIST
+cpu_init_extralibs="pthreads_extralibs"
+cws2fws_extralibs="zlib_extralibs"
+
+# libraries, in any order
+avcodec_deps="avutil"
+avcodec_suggest="libm"
+avcodec_select="null_bsf"
+avdevice_deps="avformat avcodec avutil"
+avdevice_suggest="libm"
+avfilter_deps="avutil"
+avfilter_suggest="libm"
+avformat_deps="avcodec avutil"
+avformat_suggest="libm network zlib"
+avresample_deps="avutil"
+avresample_suggest="libm"
+avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
+postproc_deps="avutil gpl"
+postproc_suggest="libm"
+swresample_deps="avutil"
+swresample_suggest="libm libsoxr"
+swscale_deps="avutil"
+swscale_suggest="libm"
+
+avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
+avfilter_extralibs="pthreads_extralibs"
+avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
+
+# programs
+ffmpeg_deps="avcodec avfilter avformat"
+ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
+               hflip_filter null_filter
+               transpose_filter trim_filter vflip_filter"
+ffmpeg_suggest="ole32 psapi shell32"
+ffplay_deps="avcodec avformat swscale swresample sdl2"
+ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
+ffplay_suggest="shell32"
+ffprobe_deps="avcodec avformat"
+ffprobe_suggest="shell32"
+
+# documentation
+podpages_deps="perl"
+manpages_deps="perl pod2man"
+htmlpages_deps="perl"
+htmlpages_deps_any="makeinfo_html texi2html"
+txtpages_deps="perl makeinfo"
+doc_deps_any="manpages htmlpages podpages txtpages"
+
+# default parameters
+
+logfile="ffbuild/config.log"
+
+# installation paths
+prefix_default="/usr/local"
+bindir_default='${prefix}/bin'
+datadir_default='${prefix}/share/ffmpeg'
+docdir_default='${prefix}/share/doc/ffmpeg'
+incdir_default='${prefix}/include'
+libdir_default='${prefix}/lib'
+mandir_default='${prefix}/share/man'
+
+# toolchain
+ar_default="ar"
+cc_default="gcc"
+cxx_default="g++"
+host_cc_default="gcc"
+doxygen_default="doxygen"
+install="install"
+ln_s_default="ln -s -f"
+nm_default="nm -g"
+pkg_config_default=pkg-config
+ranlib_default="ranlib"
+strip_default="strip"
+version_script='--version-script'
+objformat="elf32"
+x86asmexe_default="nasm"
+windres_default="windres"
+striptype="direct"
+
+# OS
+target_os_default=$(tolower $(uname -s))
+host_os=$target_os_default
+
+# machine
+if test "$target_os_default" = aix; then
+    arch_default=$(uname -p)
+    strip_default="strip -X32_64"
+    nm_default="nm -g -X32_64"
+else
+    arch_default=$(uname -m)
+fi
+cpu="generic"
+intrinsics="none"
+
+# configurable options
+enable $PROGRAM_LIST
+enable $DOCUMENT_LIST
+enable $EXAMPLE_LIST
+enable $(filter_out avresample $LIBRARY_LIST)
+enable stripping
+
+enable asm
+enable debug
+enable doc
+enable faan faandct faanidct
+enable optimizations
+enable runtime_cpudetect
+enable safe_bitstream_reader
+enable static
+enable swscale_alpha
+enable valgrind_backtrace
+
+sws_max_filter_size_default=256
+set_default sws_max_filter_size
+
+# internal components are enabled by default
+enable $EXTRALIBS_LIST
+
+# Avoid external, non-system, libraries getting enabled by dependency resolution
+disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
+
+# build settings
+SHFLAGS='-shared -Wl,-soname,$$(@F)'
+LIBPREF="lib"
+LIBSUF=".a"
+FULLNAME='$(NAME)$(BUILDSUF)'
+LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
+SLIBPREF="lib"
+SLIBSUF=".so"
+SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
+SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
+SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
+LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
+SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
+SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
+VERSION_SCRIPT_POSTPROCESS_CMD="cat"
+
+asflags_filter=echo
+cflags_filter=echo
+ldflags_filter=echo
+
+AS_C='-c'
+AS_O='-o $@'
+CC_C='-c'
+CC_E='-E -o $@'
+CC_O='-o $@'
+CXX_C='-c'
+CXX_O='-o $@'
+OBJCC_C='-c'
+OBJCC_E='-E -o $@'
+OBJCC_O='-o $@'
+X86ASM_O='-o $@'
+LD_O='-o $@'
+LD_LIB='-l%'
+LD_PATH='-L'
+HOSTCC_C='-c'
+HOSTCC_E='-E -o $@'
+HOSTCC_O='-o $@'
+HOSTLD_O='-o $@'
+NVCC_C='-c'
+NVCC_O='-o $@'
+
+host_extralibs='-lm'
+host_cflags_filter=echo
+host_ldflags_filter=echo
+
+target_path='$(CURDIR)'
+
+# since the object filename is not given with the -MM flag, the compiler
+# is only able to print the basename, and we must add the path ourselves
+DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
+DEPFLAGS='-MM'
+
+mkdir -p ffbuild
+
+# find source path
+if test -f configure; then
+    source_path=.
+elif test -f src/configure; then
+    source_path=src
+else
+    source_path=$(cd $(dirname "$0"); pwd)
+    case "$source_path" in
+        *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
+    esac
+    test -e "$source_path/config.h" &&
+        die "Out of tree builds are impossible with config.h in source dir."
+fi
+
+for v in "$@"; do
+    r=${v#*=}
+    l=${v%"$r"}
+    r=$(sh_quote "$r")
+    FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
+done
+
+find_things_extern(){
+    thing=$1
+    pattern=$2
+    file=$source_path/$3
+    out=${4:-$thing}
+    sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
+}
+
+find_filters_extern(){
+    file=$source_path/$1
+    sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
+}
+
+FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
+OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
+INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
+MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
+DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
+ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
+DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
+CODEC_LIST="
+    $ENCODER_LIST
+    $DECODER_LIST
+"
+PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
+BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
+HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
+PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
+
+AVCODEC_COMPONENTS_LIST="
+    $BSF_LIST
+    $DECODER_LIST
+    $ENCODER_LIST
+    $HWACCEL_LIST
+    $PARSER_LIST
+"
+
+AVDEVICE_COMPONENTS_LIST="
+    $INDEV_LIST
+    $OUTDEV_LIST
+"
+
+AVFILTER_COMPONENTS_LIST="
+    $FILTER_LIST
+"
+
+AVFORMAT_COMPONENTS_LIST="
+    $DEMUXER_LIST
+    $MUXER_LIST
+    $PROTOCOL_LIST
+"
+
+ALL_COMPONENTS="
+    $AVCODEC_COMPONENTS_LIST
+    $AVDEVICE_COMPONENTS_LIST
+    $AVFILTER_COMPONENTS_LIST
+    $AVFORMAT_COMPONENTS_LIST
+"
+
+for n in $COMPONENT_LIST; do
+    v=$(toupper ${n%s})_LIST
+    eval enable \$$v
+    eval ${n}_if_any="\$$v"
+done
+
+enable $ARCH_EXT_LIST
+
+die_unknown(){
+    echo "Unknown option \"$1\"."
+    echo "See $0 --help for available options."
+    exit 1
+}
+
+print_in_columns() {
+    tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
+    {
+        num_cols = width > col_width ? int(width / col_width) : 1;
+        num_rows = int((NF + num_cols-1) / num_cols);
+        y = x = 1;
+        for (y = 1; y <= num_rows; y++) {
+            i = y;
+            for (x = 1; x <= num_cols; x++) {
+                if (i <= NF) {
+                  line = sprintf("%s%-" col_width "s", line, $i);
+                }
+                i = i + num_rows;
+            }
+            print line; line = "";
+        }
+    }' | sed 's/ *$//'
+}
+
+show_list() {
+    suffix=_$1
+    shift
+    echo $* | sed s/$suffix//g | print_in_columns
+    exit 0
+}
+
+rand_list(){
+    IFS=', '
+    set -- $*
+    unset IFS
+    for thing; do
+        comp=${thing%:*}
+        prob=${thing#$comp}
+        prob=${prob#:}
+        is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
+        echo "prob ${prob:-0.5}"
+        printf '%s\n' $comp
+    done
+}
+
+do_random(){
+    action=$1
+    shift
+    random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
+    $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
+}
+
+for opt do
+    optval="${opt#*=}"
+    case "$opt" in
+        --extra-ldflags=*)
+            add_ldflags $optval
+        ;;
+        --extra-ldexeflags=*)
+            add_ldexeflags $optval
+        ;;
+        --extra-ldsoflags=*)
+            add_ldsoflags $optval
+        ;;
+        --extra-ldlibflags=*)
+            warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
+                 "removed in the future. Use --extra-ldsoflags instead."
+            add_ldsoflags $optval
+        ;;
+        --extra-libs=*)
+            add_extralibs $optval
+        ;;
+        --disable-devices)
+            disable $INDEV_LIST $OUTDEV_LIST
+        ;;
+        --enable-debug=*)
+            debuglevel="$optval"
+        ;;
+        --disable-programs)
+            disable $PROGRAM_LIST
+        ;;
+        --disable-everything)
+            map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
+        ;;
+        --disable-all)
+            map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
+            disable $LIBRARY_LIST $PROGRAM_LIST doc
+            enable avutil
+        ;;
+        --enable-random|--disable-random)
+            action=${opt%%-random}
+            do_random ${action#--} $COMPONENT_LIST
+        ;;
+        --enable-random=*|--disable-random=*)
+            action=${opt%%-random=*}
+            do_random ${action#--} $optval
+        ;;
+        --enable-sdl)
+            enable sdl2
+        ;;
+        --enable-*=*|--disable-*=*)
+            eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
+            is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
+            eval list=\$$(toupper $thing)_LIST
+            name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
+            list=$(filter "$name" $list)
+            [ "$list" = "" ] && warn "Option $opt did not match anything"
+            test $action = enable && warn_if_gets_disabled $list
+            $action $list
+        ;;
+        --enable-yasm|--disable-yasm)
+            warn "The ${opt} option is only provided for compatibility and will be\n"\
+                 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
+            test $opt = --enable-yasm && x86asm=yes || x86asm=no
+        ;;
+        --yasmexe=*)
+            warn "The --yasmexe option is only provided for compatibility and will be\n"\
+                 "removed in the future. Use --x86asmexe instead."
+            x86asmexe="$optval"
+        ;;
+        --enable-?*|--disable-?*)
+            eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
+            if is_in $option $COMPONENT_LIST; then
+                test $action = disable && action=unset
+                eval $action \$$(toupper ${option%s})_LIST
+            elif is_in $option $CMDLINE_SELECT; then
+                $action $option
+            else
+                die_unknown $opt
+            fi
+        ;;
+        --list-*)
+            NAME="${opt#--list-}"
+            is_in $NAME $COMPONENT_LIST || die_unknown $opt
+            NAME=${NAME%s}
+            eval show_list $NAME \$$(toupper $NAME)_LIST
+        ;;
+        --help|-h) show_help
+        ;;
+        --quiet|-q) quiet=yes
+        ;;
+        --fatal-warnings) enable fatal_warnings
+        ;;
+        --libfuzzer=*)
+            libfuzzer_path="$optval"
+        ;;
+        *)
+            optname="${opt%%=*}"
+            optname="${optname#--}"
+            optname=$(echo "$optname" | sed 's/-/_/g')
+            if is_in $optname $CMDLINE_SET; then
+                eval $optname='$optval'
+            elif is_in $optname $CMDLINE_APPEND; then
+                append $optname "$optval"
+            else
+                die_unknown $opt
+            fi
+        ;;
+    esac
+done
+
+for e in $env; do
+    eval "export $e"
+done
+
+if disabled autodetect; then
+
+    # Unless iconv is explicitely disabled by the user, we still want to probe
+    # for the iconv from the libc.
+    disabled iconv || enable libc_iconv
+
+    disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
+    disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
+fi
+# Mark specifically enabled, but normally autodetected libraries as requested.
+for lib in $AUTODETECT_LIBS; do
+    enabled $lib && request $lib
+done
+#TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
+enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
+enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
+
+disabled logging && logfile=/dev/null
+
+# command line configuration sanity checks
+
+# we need to build at least one lib type
+if ! enabled_any static shared; then
+    cat <<EOF
+At least one library type must be built.
+Specify --enable-static to build the static libraries or --enable-shared to
+build the shared libraries as well. To only build the shared libraries specify
+--disable-static in addition to --enable-shared.
+EOF
+    exit 1
+fi
+
+die_license_disabled() {
+    enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
+}
+
+die_license_disabled_gpl() {
+    enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
+}
+
+map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
+map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
+
+enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
+map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
+
+enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
+
+if enabled nonfree; then
+    license="nonfree and unredistributable"
+elif enabled gplv3; then
+    license="GPL version 3 or later"
+elif enabled lgplv3; then
+    license="LGPL version 3 or later"
+elif enabled gpl; then
+    license="GPL version 2 or later"
+else
+    license="LGPL version 2.1 or later"
+fi
+
+enabled_all gnutls openssl &&
+    die "GnuTLS and OpenSSL must not be enabled at the same time."
+
+enabled_all gnutls mbedtls &&
+    die "GnuTLS and mbedTLS must not be enabled at the same time."
+
+enabled_all openssl mbedtls &&
+    die "OpenSSL and mbedTLS must not be enabled at the same time."
+
+# Disable all the library-specific components if the library itself
+# is disabled, see AVCODEC_LIST and following _LIST variables.
+
+disable_components(){
+    disabled ${1} && disable $(
+        eval components="\$$(toupper ${1})_COMPONENTS"
+        map 'eval echo \${$(toupper ${v%s})_LIST}' $components
+    )
+}
+
+map 'disable_components $v' $LIBRARY_LIST
+
+echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
+set >> $logfile
+
+test -n "$valgrind" && toolchain="valgrind-memcheck"
+
+enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
+    add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
+    add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
+}
+
+case "$toolchain" in
+    *-asan)
+        cc_default="${toolchain%-asan}"
+        add_cflags  -fsanitize=address
+        add_ldflags -fsanitize=address
+    ;;
+    *-msan)
+        cc_default="${toolchain%-msan}"
+        add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
+        add_ldflags -fsanitize=memory
+    ;;
+    *-tsan)
+        cc_default="${toolchain%-tsan}"
+        add_cflags  -fsanitize=thread
+        add_ldflags -fsanitize=thread
+        case "$toolchain" in
+            gcc-tsan)
+                add_cflags  -fPIC
+                add_ldflags -fPIC
+                ;;
+        esac
+    ;;
+    *-usan)
+        cc_default="${toolchain%-usan}"
+        add_cflags  -fsanitize=undefined
+        add_ldflags -fsanitize=undefined
+    ;;
+    valgrind-*)
+        target_exec_default="valgrind"
+        case "$toolchain" in
+            valgrind-massif)
+                target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
+                ;;
+            valgrind-memcheck)
+                target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
+                ;;
+        esac
+    ;;
+    msvc)
+        # Check whether the current MSVC version needs the C99 converter.
+        # From MSVC 2013 (compiler major version 18) onwards, it does actually
+        # support enough of C99 to build ffmpeg. Default to the new
+        # behaviour if the regexp was unable to match anything, since this
+        # successfully parses the version number of existing supported
+        # versions that require the converter (MSVC 2010 and 2012).
+        cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
+        if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
+            cc_default="cl.exe"
+            cxx_default="cl.exe"
+        else
+            die "Unsupported MSVC version (2013 or newer required)"
+        fi
+        ld_default="$source_path/compat/windows/mslink"
+        nm_default="dumpbin.exe -symbols"
+        ar_default="lib.exe"
+        case "$arch" in
+        aarch64|arm64)
+            as_default="armasm64.exe"
+            ;;
+        arm*)
+            as_default="armasm.exe"
+            ;;
+        esac
+        target_os_default="win32"
+        # Use a relative path for TMPDIR. This makes sure all the
+        # ffconf temp files are written with a relative path, avoiding
+        # issues with msys/win32 path conversion for MSVC parameters
+        # such as -Fo<file> or -out:<file>.
+        TMPDIR=.
+    ;;
+    icl)
+        cc_default="icl"
+        ld_default="xilink"
+        nm_default="dumpbin -symbols"
+        ar_default="xilib"
+        target_os_default="win32"
+        TMPDIR=.
+    ;;
+    gcov)
+        add_cflags  -fprofile-arcs -ftest-coverage
+        add_ldflags -fprofile-arcs -ftest-coverage
+    ;;
+    llvm-cov)
+        add_cflags -fprofile-arcs -ftest-coverage
+        add_ldflags --coverage
+    ;;
+    hardened)
+        add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
+        add_cflags   -fno-strict-overflow -fstack-protector-all
+        add_ldflags  -Wl,-z,relro -Wl,-z,now
+        add_cflags   -fPIE
+        add_ldexeflags -fPIE -pie
+    ;;
+    ?*)
+        die "Unknown toolchain $toolchain"
+    ;;
+esac
+
+if test -n "$cross_prefix"; then
+    test -n "$arch" && test -n "$target_os" ||
+        die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
+    enable cross_compile
+fi
+
+set_default target_os
+if test "$target_os" = android; then
+    cc_default="clang"
+fi
+
+ar_default="${cross_prefix}${ar_default}"
+cc_default="${cross_prefix}${cc_default}"
+cxx_default="${cross_prefix}${cxx_default}"
+nm_default="${cross_prefix}${nm_default}"
+pkg_config_default="${cross_prefix}${pkg_config_default}"
+if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
+    ranlib_default="${cross_prefix}${ranlib_default} -D"
+else
+    ranlib_default="${cross_prefix}${ranlib_default}"
+fi
+strip_default="${cross_prefix}${strip_default}"
+windres_default="${cross_prefix}${windres_default}"
+
+sysinclude_default="${sysroot}/usr/include"
+
+if enabled cuda_sdk; then
+    warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
+    enable cuda_nvcc
+fi
+
+if enabled cuda_nvcc; then
+    nvcc_default="nvcc"
+    nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
+else
+    nvcc_default="clang"
+    nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
+    NVCC_C=""
+fi
+
+set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
+    target_exec x86asmexe nvcc
+enabled cross_compile || host_cc_default=$cc
+set_default host_cc
+
+pkg_config_fail_message=""
+if ! $pkg_config --version >/dev/null 2>&1; then
+    warn "$pkg_config not found, library detection may fail."
+    pkg_config=false
+elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
+    pkg_config_fail_message="
+Note: When building a static binary, add --pkg-config-flags=\"--static\"."
+fi
+
+if test $doxygen != $doxygen_default && \
+  ! $doxygen --version >/dev/null 2>&1; then
+    warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
+fi
+
+exesuf() {
+    case $1 in
+        mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
+    esac
+}
+
+EXESUF=$(exesuf $target_os)
+HOSTEXESUF=$(exesuf $host_os)
+
+# set temporary file name
+: ${TMPDIR:=$TEMPDIR}
+: ${TMPDIR:=$TMP}
+: ${TMPDIR:=/tmp}
+
+if [ -n "$tempprefix" ] ; then
+    mktemp(){
+        tmpname="$tempprefix.${HOSTNAME}.${UID}"
+        echo "$tmpname"
+        mkdir "$tmpname"
+    }
+elif ! test_cmd mktemp -u XXXXXX; then
+    # simple replacement for missing mktemp
+    # NOT SAFE FOR GENERAL USE
+    mktemp(){
+        tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
+        echo "$tmpname"
+        mkdir "$tmpname"
+    }
+fi
+
+FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
+    die "Unable to create temporary directory in $TMPDIR."
+
+tmpfile(){
+    tmp="${FFTMPDIR}/test"$2
+    (set -C; exec > $tmp) 2> /dev/null ||
+        die "Unable to create temporary file in $FFTMPDIR."
+    eval $1=$tmp
+}
+
+trap 'rm -rf -- "$FFTMPDIR"' EXIT
+trap 'exit 2' INT
+
+tmpfile TMPASM .asm
+tmpfile TMPC   .c
+tmpfile TMPCPP .cpp
+tmpfile TMPE   $EXESUF
+tmpfile TMPH   .h
+tmpfile TMPM   .m
+tmpfile TMPCU  .cu
+tmpfile TMPO   .o
+tmpfile TMPS   .S
+tmpfile TMPSH  .sh
+tmpfile TMPV   .ver
+
+unset -f mktemp
+
+chmod +x $TMPE
+
+# make sure we can execute files in $TMPDIR
+cat > $TMPSH 2>> $logfile <<EOF
+#! /bin/sh
+EOF
+chmod +x $TMPSH >> $logfile 2>&1
+if ! $TMPSH >> $logfile 2>&1; then
+    cat <<EOF
+Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
+variable to another directory and make sure that it is not mounted noexec.
+EOF
+    die "Sanity test failed."
+fi
+
+armasm_flags(){
+    for flag; do
+        case $flag in
+            # Filter out MSVC cl.exe options from cflags that shouldn't
+            # be passed to gas-preprocessor
+            -M[TD]*)                                            ;;
+            *)                  echo $flag                      ;;
+        esac
+   done
+}
+
+cparser_flags(){
+    for flag; do
+        case $flag in
+            -Wno-switch)             echo -Wno-switch-enum ;;
+            -Wno-format-zero-length) ;;
+            -Wdisabled-optimization) ;;
+            -Wno-pointer-sign)       echo -Wno-other ;;
+            *)                       echo $flag ;;
+        esac
+    done
+}
+
+msvc_common_flags(){
+    for flag; do
+        case $flag in
+            # In addition to specifying certain flags under the compiler
+            # specific filters, they must be specified here as well or else the
+            # generic catch all at the bottom will print the original flag.
+            -Wall)                ;;
+            -Wextra)              ;;
+            -std=c99)             ;;
+            # Common flags
+            -fomit-frame-pointer) ;;
+            -g)                   echo -Z7 ;;
+            -fno-math-errno)      ;;
+            -fno-common)          ;;
+            -fno-signed-zeros)    ;;
+            -fPIC)                ;;
+            -mthumb)              ;;
+            -march=*)             ;;
+            -lz)                  echo zlib.lib ;;
+            -lx264)               echo libx264.lib ;;
+            -lstdc++)             ;;
+            -l*)                  echo ${flag#-l}.lib ;;
+            -LARGEADDRESSAWARE)   echo $flag ;;
+            -L*)                  echo -libpath:${flag#-L} ;;
+            *)                    echo $flag ;;
+        esac
+    done
+}
+
+msvc_flags(){
+    msvc_common_flags "$@"
+    for flag; do
+        case $flag in
+            -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
+                                       -wd4554 ;;
+            -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
+                                       -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
+                                       -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
+                                       -wd4307 \
+                                       -wd4273 -wd4554 -wd4701 -wd4703 ;;
+        esac
+    done
+}
+
+icl_flags(){
+    msvc_common_flags "$@"
+    for flag; do
+        case $flag in
+            # Despite what Intel's documentation says -Wall, which is supported
+            # on Windows, does enable remarks so disable them here.
+            -Wall)                echo $flag -Qdiag-disable:remark ;;
+            -std=c99)             echo -Qstd=c99 ;;
+            -flto)                echo -ipo ;;
+        esac
+    done
+}
+
+icc_flags(){
+    for flag; do
+        case $flag in
+            -flto)                echo -ipo ;;
+            *)                    echo $flag ;;
+        esac
+    done
+}
+
+suncc_flags(){
+    for flag; do
+        case $flag in
+            -march=*|-mcpu=*)
+                case "${flag#*=}" in
+                    native)                   echo -xtarget=native       ;;
+                    v9|niagara)               echo -xarch=sparc          ;;
+                    ultrasparc)               echo -xarch=sparcvis       ;;
+                    ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
+                    i586|pentium)             echo -xchip=pentium        ;;
+                    i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
+                    pentium3*|c3-2)           echo -xtarget=pentium3     ;;
+                    pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
+                    pentium4*)          echo -xtarget=pentium4           ;;
+                    prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
+                    *-sse3)             echo -xarch=sse3                 ;;
+                    core2)              echo -xarch=ssse3 -xchip=core2   ;;
+                    bonnell)                   echo -xarch=ssse3         ;;
+                    corei7|nehalem)            echo -xtarget=nehalem     ;;
+                    westmere)                  echo -xtarget=westmere    ;;
+                    silvermont)                echo -xarch=sse4_2        ;;
+                    corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
+                    core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
+                                               echo -xarch=avx           ;;
+                    amdfam10|barcelona)        echo -xtarget=barcelona   ;;
+                    btver1)                    echo -xarch=amdsse4a      ;;
+                    btver2|bdver*|znver*)      echo -xarch=avx           ;;
+                    athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
+                    k8|opteron|athlon64|athlon-fx)
+                                               echo -xarch=sse2a         ;;
+                    athlon*)                   echo -xarch=pentium_proa  ;;
+                esac
+                ;;
+            -std=c99)             echo -xc99              ;;
+            -fomit-frame-pointer) echo -xregs=frameptr    ;;
+            -fPIC)                echo -KPIC -xcode=pic32 ;;
+            -W*,*)                echo $flag              ;;
+            -f*-*|-W*|-mimpure-text)                      ;;
+            -shared)              echo -G                 ;;
+            *)                    echo $flag              ;;
+        esac
+    done
+}
+
+probe_cc(){
+    pfx=$1
+    _cc=$2
+    first=$3
+
+    unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
+    unset _ld_o _ldflags _ld_lib _ld_path
+    unset _depflags _DEPCMD _DEPFLAGS
+    _flags_filter=echo
+
+    if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
+        true # no-op to avoid reading stdin in following checks
+    elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
+        _type=llvm_gcc
+        gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
+        _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
+        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
+        _cflags_speed='-O3'
+        _cflags_size='-Os'
+    elif $_cc -v 2>&1 | grep -qi ^gcc; then
+        _type=gcc
+        gcc_version=$($_cc --version | head -n1)
+        gcc_basever=$($_cc -dumpversion)
+        gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
+        gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
+        _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
+        case $gcc_basever in
+            2) ;;
+            2.*) ;;
+            *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
+        esac
+        if [ "$first" = true ]; then
+            case $gcc_basever in
+                4.2*)
+                warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
+            esac
+        fi
+        _cflags_speed='-O3'
+        _cflags_size='-Os'
+    elif $_cc --version 2>/dev/null | grep -q ^icc; then
+        _type=icc
+        _ident=$($_cc --version | head -n1)
+        _depflags='-MMD'
+        _cflags_speed='-O3'
+        _cflags_size='-Os'
+        _cflags_noopt='-O1'
+        _flags_filter=icc_flags
+    elif $_cc -v 2>&1 | grep -q xlc; then
+        _type=xlc
+        _ident=$($_cc -qversion 2>/dev/null | head -n1)
+        _cflags_speed='-O5'
+        _cflags_size='-O5 -qcompact'
+    elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
+        test -d "$sysroot" || die "No valid sysroot specified."
+        _type=armcc
+        _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
+        armcc_conf="$PWD/armcc.conf"
+        $_cc --arm_linux_configure                 \
+             --arm_linux_config_file="$armcc_conf" \
+             --configure_sysroot="$sysroot"        \
+             --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
+             die "Error creating armcc configuration file."
+        $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
+        _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
+        as_default="${cross_prefix}gcc"
+        _depflags='-MMD'
+        _cflags_speed='-O3'
+        _cflags_size='-Os'
+    elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
+        _type=clang
+        _ident=$($_cc --version 2>/dev/null | head -n1)
+        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
+        _cflags_speed='-O3'
+        _cflags_size='-Oz'
+    elif $_cc -V 2>&1 | grep -q Sun; then
+        _type=suncc
+        _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
+        _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
+        _DEPFLAGS='-xM1 -xc99'
+        _ldflags='-std=c99'
+        _cflags_speed='-O5'
+        _cflags_size='-O5 -xspace'
+        _flags_filter=suncc_flags
+    elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
+        _type=pathscale
+        _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
+        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
+        _cflags_speed='-O2'
+        _cflags_size='-Os'
+        _flags_filter='filter_out -Wdisabled-optimization'
+    elif $_cc -v 2>&1 | grep -q Open64; then
+        _type=open64
+        _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
+        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
+        _cflags_speed='-O2'
+        _cflags_size='-Os'
+        _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
+    elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
+        _type=armasm
+        _ident=$($_cc | head -n1)
+        # 4509: "This form of conditional instruction is deprecated"
+        _flags="-nologo -ignore 4509"
+        _flags_filter=armasm_flags
+    elif $_cc 2>&1 | grep -q Intel; then
+        _type=icl
+        _ident=$($_cc 2>&1 | head -n1)
+        _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
+        # Not only is O3 broken on 13.x+ but it is slower on all previous
+        # versions (tested) as well.
+        _cflags_speed="-O2"
+        _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
+        if $_cc 2>&1 | grep -q Linker; then
+            _ld_o='-out:$@'
+        else
+            _ld_o='-Fe$@'
+        fi
+        _cc_o='-Fo$@'
+        _cc_e='-P'
+        _flags_filter=icl_flags
+        _ld_lib='lib%.a'
+        _ld_path='-libpath:'
+        # -Qdiag-error to make icl error when seeing certain unknown arguments
+        _flags='-nologo -Qdiag-error:4044,10157'
+        # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
+        # with MSVC which enables it by default.
+        _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
+        disable stripping
+    elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
+        # lld can emulate multiple different linkers; in ms link.exe mode,
+        # the -? parameter gives the help output which contains an identifyable
+        # string, while it gives an error in other modes.
+        _type=lld-link
+        # The link.exe mode doesn't have a switch for getting the version,
+        # but we can force it back to gnu mode and get the version from there.
+        _ident=$($_cc -flavor gnu --version 2>/dev/null)
+        _ld_o='-out:$@'
+        _flags_filter=msvc_flags
+        _ld_lib='lib%.a'
+        _ld_path='-libpath:'
+    elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
+        _type=msvc
+        _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
+        _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
+        _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
+        _cflags_speed="-O2"
+        _cflags_size="-O1"
+        _cflags_noopt="-O1"
+        if $_cc -nologo- 2>&1 | grep -q Linker; then
+            _ld_o='-out:$@'
+        else
+            _ld_o='-Fe$@'
+        fi
+        _cc_o='-Fo$@'
+        _cc_e='-P -Fi$@'
+        _flags_filter=msvc_flags
+        _ld_lib='lib%.a'
+        _ld_path='-libpath:'
+        _flags='-nologo'
+        disable stripping
+    elif $_cc --version 2>/dev/null | grep -q ^cparser; then
+        _type=cparser
+        _ident=$($_cc --version | head -n1)
+        _depflags='-MMD'
+        _cflags_speed='-O4'
+        _cflags_size='-O2'
+        _flags_filter=cparser_flags
+    fi
+
+    eval ${pfx}_type=\$_type
+    eval ${pfx}_ident=\$_ident
+}
+
+set_ccvars(){
+    eval ${1}_C=\${_cc_c-\${${1}_C}}
+    eval ${1}_E=\${_cc_e-\${${1}_E}}
+    eval ${1}_O=\${_cc_o-\${${1}_O}}
+
+    if [ -n "$_depflags" ]; then
+        eval ${1}_DEPFLAGS=\$_depflags
+    else
+        eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
+        eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
+        eval DEP${1}FLAGS=\$_flags
+    fi
+}
+
+probe_cc cc "$cc" "true"
+cflags_filter=$_flags_filter
+cflags_speed=$_cflags_speed
+cflags_size=$_cflags_size
+cflags_noopt=$_cflags_noopt
+add_cflags $_flags $_cflags
+cc_ldflags=$_ldflags
+set_ccvars CC
+set_ccvars CXX
+
+probe_cc hostcc "$host_cc"
+host_cflags_filter=$_flags_filter
+host_cflags_speed=$_cflags_speed
+add_host_cflags  $_flags $_cflags
+set_ccvars HOSTCC
+
+test -n "$cc_type" && enable $cc_type ||
+    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
+
+: ${as_default:=$cc}
+: ${objcc_default:=$cc}
+: ${dep_cc_default:=$cc}
+: ${ld_default:=$cc}
+: ${host_ld_default:=$host_cc}
+set_default ar as objcc dep_cc ld ln_s host_ld windres
+
+probe_cc as "$as"
+asflags_filter=$_flags_filter
+add_asflags $_flags $_cflags
+set_ccvars AS
+
+probe_cc objcc "$objcc"
+objcflags_filter=$_flags_filter
+add_objcflags $_flags $_cflags
+set_ccvars OBJC
+
+probe_cc ld "$ld"
+ldflags_filter=$_flags_filter
+add_ldflags $_flags $_ldflags
+test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
+LD_O=${_ld_o-$LD_O}
+LD_LIB=${_ld_lib-$LD_LIB}
+LD_PATH=${_ld_path-$LD_PATH}
+
+probe_cc hostld "$host_ld"
+host_ldflags_filter=$_flags_filter
+add_host_ldflags $_flags $_ldflags
+HOSTLD_O=${_ld_o-$HOSTLD_O}
+
+if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
+    probe_cc depcc "$dep_cc"
+    CCDEP=${_DEPCMD:-$DEPCMD}
+    CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
+    DEPCCFLAGS=$_flags
+fi
+
+if $ar 2>&1 | grep -q Microsoft; then
+    arflags="-nologo"
+    ar_o='-out:$@'
+elif $ar 2>&1 | grep -q "\[D\] "; then
+    arflags="rcD"
+    ar_o='$@'
+else
+    arflags="rc"
+    ar_o='$@'
+fi
+
+add_cflags $extra_cflags
+add_cxxflags $extra_cxxflags
+add_objcflags $extra_objcflags
+add_asflags $extra_cflags
+
+if test -n "$sysroot"; then
+    case "$cc_type" in
+        gcc|llvm_gcc|clang)
+            add_cppflags --sysroot="$sysroot"
+            add_ldflags --sysroot="$sysroot"
+        ;;
+    esac
+fi
+
+if test "$cpu" = host; then
+    enabled cross_compile &&
+        die "--cpu=host makes no sense when cross-compiling."
+
+    case "$cc_type" in
+        gcc|llvm_gcc)
+            check_native(){
+                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
+                sed -n "/cc1.*$1=/{
+                            s/.*$1=\\([^ ]*\\).*/\\1/
+                            p
+                            q
+                        }" $TMPE
+            }
+            cpu=$(check_native -march || check_native -mcpu)
+        ;;
+        clang)
+            check_native(){
+                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
+                sed -n "/cc1.*-target-cpu /{
+                            s/.*-target-cpu \\([^ ]*\\).*/\\1/
+                            p
+                            q
+                        }" $TMPE
+            }
+            cpu=$(check_native -march)
+        ;;
+    esac
+
+    test "${cpu:-host}" = host &&
+        die "--cpu=host not supported with compiler $cc"
+fi
+
+# Deal with common $arch aliases
+case "$arch" in
+    aarch64|arm64)
+        arch="aarch64"
+    ;;
+    arm*|iPad*|iPhone*)
+        arch="arm"
+    ;;
+    mips*|IP*)
+        case "$arch" in
+        *el)
+            add_cppflags -EL
+            add_ldflags -EL
+        ;;
+        *eb)
+            add_cppflags -EB
+            add_ldflags -EB
+        ;;
+        esac
+        arch="mips"
+    ;;
+    parisc*|hppa*)
+        arch="parisc"
+    ;;
+    "Power Macintosh"|ppc*|powerpc*)
+        arch="ppc"
+    ;;
+    s390|s390x)
+        arch="s390"
+    ;;
+    sh4|sh)
+        arch="sh4"
+    ;;
+    sun4*|sparc*)
+        arch="sparc"
+    ;;
+    tilegx|tile-gx)
+        arch="tilegx"
+    ;;
+    i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
+        arch="x86"
+    ;;
+esac
+
+is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
+enable $arch
+
+# Add processor-specific flags
+if enabled aarch64; then
+
+    case $cpu in
+        armv*)
+            cpuflags="-march=$cpu"
+        ;;
+        *)
+            cpuflags="-mcpu=$cpu"
+        ;;
+    esac
+
+elif enabled alpha; then
+
+    cpuflags="-mcpu=$cpu"
+
+elif enabled arm; then
+
+    check_arm_arch() {
+        test_cpp_condition stddef.h \
+            "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
+            $cpuflags
+    }
+
+    probe_arm_arch() {
+        if   check_arm_arch 4;        then echo armv4
+        elif check_arm_arch 4T;       then echo armv4t
+        elif check_arm_arch 5;        then echo armv5
+        elif check_arm_arch 5E;       then echo armv5e
+        elif check_arm_arch 5T;       then echo armv5t
+        elif check_arm_arch 5TE;      then echo armv5te
+        elif check_arm_arch 5TEJ;     then echo armv5te
+        elif check_arm_arch 6;        then echo armv6
+        elif check_arm_arch 6J;       then echo armv6j
+        elif check_arm_arch 6K;       then echo armv6k
+        elif check_arm_arch 6Z;       then echo armv6z
+        elif check_arm_arch 6KZ;      then echo armv6zk
+        elif check_arm_arch 6ZK;      then echo armv6zk
+        elif check_arm_arch 6T2;      then echo armv6t2
+        elif check_arm_arch 7;        then echo armv7
+        elif check_arm_arch 7A  7_A;  then echo armv7-a
+        elif check_arm_arch 7S;       then echo armv7-a
+        elif check_arm_arch 7R  7_R;  then echo armv7-r
+        elif check_arm_arch 7M  7_M;  then echo armv7-m
+        elif check_arm_arch 7EM 7E_M; then echo armv7-m
+        elif check_arm_arch 8A  8_A;  then echo armv8-a
+        fi
+    }
+
+    [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
+
+    case $cpu in
+        armv*)
+            cpuflags="-march=$cpu"
+            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
+        ;;
+        *)
+            cpuflags="-mcpu=$cpu"
+            case $cpu in
+                cortex-a*)                               subarch=armv7a  ;;
+                cortex-r*)                               subarch=armv7r  ;;
+                cortex-m*)                 enable thumb; subarch=armv7m  ;;
+                arm11*)                                  subarch=armv6   ;;
+                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
+                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
+                *)                             subarch=$(probe_arm_arch) ;;
+            esac
+        ;;
+    esac
+
+    case "$subarch" in
+        armv5t*)    enable fast_clz                ;;
+        armv[6-8]*)
+            enable fast_clz
+            disabled fast_unaligned || enable fast_unaligned
+            ;;
+    esac
+
+elif enabled avr32; then
+
+    case $cpu in
+        ap7[02]0[0-2])
+            subarch="avr32_ap"
+            cpuflags="-mpart=$cpu"
+        ;;
+        ap)
+            subarch="avr32_ap"
+            cpuflags="-march=$cpu"
+        ;;
+        uc3[ab]*)
+            subarch="avr32_uc"
+            cpuflags="-mcpu=$cpu"
+        ;;
+        uc)
+            subarch="avr32_uc"
+            cpuflags="-march=$cpu"
+        ;;
+    esac
+
+elif enabled bfin; then
+
+    cpuflags="-mcpu=$cpu"
+
+elif enabled mips; then
+
+    cpuflags="-march=$cpu"
+
+    if [ "$cpu" != "generic" ]; then
+        disable mips32r2
+        disable mips32r5
+        disable mips64r2
+        disable mips32r6
+        disable mips64r6
+        disable loongson2
+        disable loongson3
+
+        case $cpu in
+            24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
+                enable mips32r2
+                disable msa
+            ;;
+            p5600|i6400|p6600)
+                disable mipsdsp
+                disable mipsdspr2
+            ;;
+            loongson*)
+                enable loongson2
+                enable loongson3
+                enable local_aligned
+                enable simd_align_16
+                enable fast_64bit
+                enable fast_clz
+                enable fast_cmov
+                enable fast_unaligned
+                disable aligned_stack
+                disable mipsdsp
+                disable mipsdspr2
+                # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
+                if [ $cc == gcc ]; then
+                    gcc_version=$(gcc -dumpversion)
+                    if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
+                        expensive_optimization_flag=""
+                    else
+                        expensive_optimization_flag="-fno-expensive-optimizations"
+                    fi
+                fi
+                case $cpu in
+                    loongson3*)
+                        cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
+                    ;;
+                    loongson2e)
+                        cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
+                    ;;
+                    loongson2f)
+                        cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
+                    ;;
+                esac
+            ;;
+            *)
+                # Unknown CPU. Disable everything.
+                warn "unknown CPU. Disabling all MIPS optimizations."
+                disable mipsfpu
+                disable mipsdsp
+                disable mipsdspr2
+                disable msa
+                disable mmi
+            ;;
+        esac
+
+        case $cpu in
+            24kc)
+                disable mipsfpu
+                disable mipsdsp
+                disable mipsdspr2
+            ;;
+            24kf*)
+                disable mipsdsp
+                disable mipsdspr2
+            ;;
+            24kec|34kc|1004kc)
+                disable mipsfpu
+                disable mipsdspr2
+            ;;
+            24kef*|34kf*|1004kf*)
+                disable mipsdspr2
+            ;;
+            74kc)
+                disable mipsfpu
+            ;;
+            p5600)
+                enable mips32r5
+                check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
+            ;;
+            i6400)
+                enable mips64r6
+                check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
+            ;;
+            p6600)
+                enable mips64r6
+                check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
+            ;;
+        esac
+    else
+        # We do not disable anything. Is up to the user to disable the unwanted features.
+        warn 'generic cpu selected'
+    fi
+
+elif enabled ppc; then
+
+    disable ldbrx
+
+    case $(tolower $cpu) in
+        601|ppc601|powerpc601)
+            cpuflags="-mcpu=601"
+            disable altivec
+        ;;
+        603*|ppc603*|powerpc603*)
+            cpuflags="-mcpu=603"
+            disable altivec
+        ;;
+        604*|ppc604*|powerpc604*)
+            cpuflags="-mcpu=604"
+            disable altivec
+        ;;
+        g3|75*|ppc75*|powerpc75*)
+            cpuflags="-mcpu=750"
+            disable altivec
+        ;;
+        g4|745*|ppc745*|powerpc745*)
+            cpuflags="-mcpu=7450"
+            disable vsx
+        ;;
+        74*|ppc74*|powerpc74*)
+            cpuflags="-mcpu=7400"
+            disable vsx
+        ;;
+        g5|970|ppc970|powerpc970)
+            cpuflags="-mcpu=970"
+            disable vsx
+        ;;
+        power[3-6]*)
+            cpuflags="-mcpu=$cpu"
+            disable vsx
+        ;;
+        power[7-8]*)
+            cpuflags="-mcpu=$cpu"
+        ;;
+        cell)
+            cpuflags="-mcpu=cell"
+            enable ldbrx
+            disable vsx
+        ;;
+        e500mc)
+            cpuflags="-mcpu=e500mc"
+            disable altivec
+        ;;
+        e500v2)
+            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
+            disable altivec
+            disable dcbzl
+        ;;
+        e500)
+            cpuflags="-mcpu=8540 -mhard-float"
+            disable altivec
+            disable dcbzl
+        ;;
+    esac
+
+elif enabled sparc; then
+
+    case $cpu in
+        cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
+            cpuflags="-mcpu=$cpu"
+        ;;
+        ultrasparc*|niagara[234])
+            cpuflags="-mcpu=$cpu"
+        ;;
+    esac
+
+elif enabled x86; then
+
+    case $cpu in
+        i[345]86|pentium)
+            cpuflags="-march=$cpu"
+            disable i686
+            disable mmx
+        ;;
+        # targets that do NOT support nopl and conditional mov (cmov)
+        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
+            cpuflags="-march=$cpu"
+            disable i686
+        ;;
+        # targets that do support nopl and conditional mov (cmov)
+        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
+        |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
+        |amdfam10|barcelona|b[dt]ver*|znver*)
+            cpuflags="-march=$cpu"
+            enable i686
+            enable fast_cmov
+        ;;
+        # targets that do support conditional mov but on which it's slow
+        pentium4|pentium4m|prescott|nocona)
+            cpuflags="-march=$cpu"
+            enable i686
+            disable fast_cmov
+        ;;
+    esac
+
+fi
+
+if [ "$cpu" != generic ]; then
+    add_cflags  $cpuflags
+    add_asflags $cpuflags
+    test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
+fi
+
+# compiler sanity check
+test_exec <<EOF
+int main(void){ return 0; }
+EOF
+if test "$?" != 0; then
+    echo "$cc is unable to create an executable file."
+    if test -z "$cross_prefix" && ! enabled cross_compile ; then
+        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
+        echo "Only do this if you know what cross compiling means."
+    fi
+    die "C compiler test failed."
+fi
+
+add_cppflags -D_ISOC99_SOURCE
+add_cxxflags -D__STDC_CONSTANT_MACROS
+check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
+
+# some compilers silently accept -std=c11, so we also need to check that the
+# version macro is defined properly
+test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
+    add_cflags -std=c11 ||
+    check_cflags -std=c99
+
+check_cppflags -D_FILE_OFFSET_BITS=64
+check_cppflags -D_LARGEFILE_SOURCE
+
+add_host_cppflags -D_ISOC99_SOURCE
+check_host_cflags -std=c99
+check_host_cflags -Wall
+check_host_cflags $host_cflags_speed
+
+check_64bit(){
+    arch32=$1
+    arch64=$2
+    expr=${3:-'sizeof(void *) > 4'}
+    test_code cc "" "int test[2*($expr) - 1]" &&
+        subarch=$arch64 || subarch=$arch32
+    enable $subarch
+}
+
+case "$arch" in
+    aarch64|alpha|ia64)
+        enabled shared && enable_weak pic
+    ;;
+    mips)
+        check_64bit mips mips64 '_MIPS_SIM > 1'
+        enabled shared && enable_weak pic
+    ;;
+    parisc)
+        check_64bit parisc parisc64
+        enabled shared && enable_weak pic
+    ;;
+    ppc)
+        check_64bit ppc ppc64
+        enabled shared && enable_weak pic
+    ;;
+    s390)
+        check_64bit s390 s390x
+        enabled shared && enable_weak pic
+    ;;
+    sparc)
+        check_64bit sparc sparc64
+        enabled shared && enable_weak pic
+    ;;
+    x86)
+        check_64bit x86_32 x86_64
+        # Treat x32 as x64 for now. Note it also needs pic if shared
+        test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
+            subarch=x86_64 && enable x86_64 && disable x86_32
+        if enabled x86_64; then
+            enabled shared && enable_weak pic
+            objformat=elf64
+        fi
+    ;;
+esac
+
+# OS specific
+case $target_os in
+    aix)
+        SHFLAGS=-shared
+        add_cppflags '-I\$(SRC_PATH)/compat/aix'
+        enabled shared && add_ldflags -Wl,-brtl
+        arflags='-Xany -r -c'
+        striptype=""
+        ;;
+    android)
+        disable symver
+        enable section_data_rel_ro
+        add_cflags -fPIE
+        add_ldexeflags -fPIE -pie
+        SLIB_INSTALL_NAME='$(SLIBNAME)'
+        SLIB_INSTALL_LINKS=
+        SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
+        ;;
+    haiku)
+        prefix_default="/boot/common"
+        network_extralibs="-lnetwork"
+        host_extralibs=
+        ;;
+    sunos)
+        SHFLAGS='-shared -Wl,-h,$$(@F)'
+        enabled x86 && append SHFLAGS -mimpure-text
+        network_extralibs="-lsocket -lnsl"
+        add_cppflags -D__EXTENSIONS__
+        # When using suncc to build, the Solaris linker will mark
+        # an executable with each instruction set encountered by
+        # the Solaris assembler.  As our libraries contain their own
+        # guards for processor-specific code, instead suppress
+        # generation of the HWCAPS ELF section on Solaris x86 only.
+        enabled_all suncc x86 &&
+            echo "hwcap_1 = OVERRIDE;" > mapfile &&
+            add_ldflags -Wl,-M,mapfile
+        nm_default='nm -P -g'
+        striptype=""
+        version_script='-M'
+        VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
+        ;;
+    netbsd)
+        disable symver
+        oss_indev_extralibs="-lossaudio"
+        oss_outdev_extralibs="-lossaudio"
+        enabled gcc || check_ldflags -Wl,-zmuldefs
+        ;;
+    openbsd|bitrig)
+        disable symver
+        striptype=""
+        SHFLAGS='-shared'
+        SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
+        SLIB_INSTALL_LINKS=
+        oss_indev_extralibs="-lossaudio"
+        oss_outdev_extralibs="-lossaudio"
+        ;;
+    dragonfly)
+        disable symver
+        ;;
+    freebsd)
+        ;;
+    bsd/os)
+        add_extralibs -lpoll -lgnugetopt
+        strip="strip -d"
+        ;;
+    darwin)
+        enabled ppc && add_asflags -force_cpusubtype_ALL
+        install_name_dir_default='$(SHLIBDIR)'
+        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
+        enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
+        strip="${strip} -x"
+        add_ldflags -Wl,-dynamic,-search_paths_first
+        check_cflags -Werror=partial-availability
+        SLIBSUF=".dylib"
+        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
+        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
+        enabled x86_64 && objformat="macho64" || objformat="macho32"
+        enabled_any pic shared x86_64 ||
+            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
+        check_headers dispatch/dispatch.h &&
+            add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
+        if test -n "$sysroot"; then
+            is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
+            is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
+        fi
+        version_script='-exported_symbols_list'
+        VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
+        ;;
+    msys*)
+        die "Native MSYS builds are discouraged, please use the MINGW environment."
+        ;;
+    mingw32*|mingw64*)
+        target_os=mingw32
+        LIBTARGET=i386
+        if enabled x86_64; then
+            LIBTARGET="i386:x86-64"
+        elif enabled arm; then
+            LIBTARGET="arm"
+        elif enabled aarch64; then
+            LIBTARGET="arm64"
+        fi
+        if enabled shared; then
+            # Cannot build both shared and static libs when using dllimport.
+            disable static
+        fi
+        enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
+        enabled x86_32 && check_ldflags -Wl,--large-address-aware
+        shlibdir_default="$bindir_default"
+        SLIBPREF=""
+        SLIBSUF=".dll"
+        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
+        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
+        if test_cmd lib.exe -list; then
+            SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
+            if enabled x86_64; then
+                LIBTARGET=x64
+            fi
+        else
+            SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
+        fi
+        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
+        SLIB_INSTALL_LINKS=
+        SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
+        SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
+        SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
+        SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
+        enabled x86_64 && objformat="win64" || objformat="win32"
+        dlltool="${cross_prefix}dlltool"
+        ranlib=:
+        enable dos_paths
+        check_ldflags -Wl,--nxcompat,--dynamicbase
+        # Lets work around some stupidity in binutils.
+        # ld will strip relocations from executables even though we need them
+        # for dynamicbase (ASLR).  Using -pie does retain the reloc section
+        # however ld then forgets what the entry point should be (oops) so we
+        # have to manually (re)set it.
+        if enabled x86_32; then
+            disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
+        elif enabled x86_64; then
+            disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
+            check_ldflags -Wl,--high-entropy-va # binutils 2.25
+            # Set image base >4GB for extra entropy with HEASLR
+            add_ldexeflags -Wl,--image-base,0x140000000
+            append SHFLAGS -Wl,--image-base,0x180000000
+        fi
+        ;;
+    win32|win64)
+        disable symver
+        if enabled shared; then
+            # Link to the import library instead of the normal static library
+            # for shared libs.
+            LD_LIB='%.lib'
+            # Cannot build both shared and static libs with MSVC or icl.
+            disable static
+        fi
+        enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
+        shlibdir_default="$bindir_default"
+        SLIBPREF=""
+        SLIBSUF=".dll"
+        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
+        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
+        SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
+        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
+        SLIB_INSTALL_LINKS=
+        SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
+        SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
+        SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
+        enabled x86_64 && objformat="win64" || objformat="win32"
+        ranlib=:
+        enable dos_paths
+        ;;
+    cygwin*)
+        target_os=cygwin
+        shlibdir_default="$bindir_default"
+        SLIBPREF="cyg"
+        SLIBSUF=".dll"
+        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
+        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
+        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
+        SLIB_INSTALL_LINKS=
+        SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
+        SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
+        enabled x86_64 && objformat="win64" || objformat="win32"
+        enable dos_paths
+        enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
+        add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
+        ;;
+    *-dos|freedos|opendos)
+        network_extralibs="-lsocket"
+        objformat="coff"
+        enable dos_paths
+        ;;
+    linux)
+        enable section_data_rel_ro
+        enabled_any arm aarch64 && enable_weak linux_perf
+        ;;
+    irix*)
+        target_os=irix
+        ranlib="echo ignoring ranlib"
+        ;;
+    os/2*)
+        strip="lxlite -CS"
+        striptype=""
+        objformat="aout"
+        add_cppflags -D_GNU_SOURCE
+        add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
+        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
+        LIBSUF="_s.a"
+        SLIBPREF=""
+        SLIBSUF=".dll"
+        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
+        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
+        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
+            echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
+            echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
+            echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
+            emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
+        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
+            emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
+        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
+        SLIB_INSTALL_LINKS=
+        SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
+        enable dos_paths
+        enable_weak os2threads
+        ;;
+    gnu/kfreebsd)
+        add_cppflags -D_BSD_SOURCE
+        ;;
+    gnu)
+        ;;
+    qnx)
+        add_cppflags -D_QNX_SOURCE
+        network_extralibs="-lsocket"
+        ;;
+    symbian)
+        SLIBSUF=".dll"
+        enable dos_paths
+        add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
+        add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
+        add_ldflags -Wl,--target1-abs,--no-undefined \
+                    -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
+                    -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
+        add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
+                      -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
+                      -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
+        ;;
+    minix)
+        ;;
+    none)
+        ;;
+    *)
+        die "Unknown OS '$target_os'."
+        ;;
+esac
+
+# test if creating links works
+link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
+link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
+mkdir "$link_dest"
+$ln_s "$link_dest" "$link_name"
+touch "$link_dest/test_file"
+if [ "$source_path" != "." ] && [ "$source_path" != "src" ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
+    # create link to source path
+    [ -e src ] && rm src
+    $ln_s "$source_path" src
+    source_link=src
+else
+    # creating directory links doesn't work
+    # fall back to using the full source path
+    source_link="$source_path"
+fi
+# cleanup
+rm -r "$link_dest"
+rm -r "$link_name"
+
+# determine libc flavour
+
+probe_libc(){
+    pfx=$1
+    pfx_no_=${pfx%_}
+    # uclibc defines __GLIBC__, so it needs to be checked before glibc.
+    if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
+        eval ${pfx}libc_type=uclibc
+        add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
+    elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
+        eval ${pfx}libc_type=glibc
+        add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
+    # MinGW headers can be installed on Cygwin, so check for newlib first.
+    elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
+        eval ${pfx}libc_type=newlib
+        add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
+    # MinGW64 is backwards compatible with MinGW32, so check for it first.
+    elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
+        eval ${pfx}libc_type=mingw64
+        if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
+            add_compat msvcrt/snprintf.o
+            add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
+        fi
+        add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
+        eval test \$${pfx_no_}cc_type = "gcc" &&
+            add_${pfx}cppflags -D__printf__=__gnu_printf__
+        test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
+            add_${pfx}cppflags -D_WIN32_WINNT=0x0600
+        add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
+    elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
+         test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
+        eval ${pfx}libc_type=mingw32
+        test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
+            (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
+            die "ERROR: MinGW32 runtime version must be >= 3.15."
+        add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
+        test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
+            add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
+        test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
+            add_${pfx}cppflags -D_WIN32_WINNT=0x0600
+        eval test \$${pfx_no_}cc_type = "gcc" &&
+            add_${pfx}cppflags -D__printf__=__gnu_printf__
+        add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
+    elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
+        eval ${pfx}libc_type=msvcrt
+        if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
+            if [ "$pfx" = host_ ]; then
+                add_host_cppflags -Dsnprintf=_snprintf
+            else
+                add_compat strtod.o strtod=avpriv_strtod
+                add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
+                                             _snprintf=avpriv_snprintf  \
+                                             vsnprintf=avpriv_vsnprintf
+            fi
+        fi
+        add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
+        # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
+        # 0x601 by default unless something else is set by the user.
+        # This can easily lead to us detecting functions only present
+        # in such new versions and producing binaries requiring windows 7.0.
+        # Therefore explicitly set the default to Vista unless the user has
+        # set something else on the command line.
+        # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
+        # family. For these cases, configure is free to use any functions
+        # found in the SDK headers by default. (Alternatively, we could force
+        # _WIN32_WINNT to 0x0602 in that case.)
+        test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
+            { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
+#ifdef WINAPI_FAMILY
+#include <winapifamily.h>
+#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+#error not desktop
+#endif
+#endif
+EOF
+        if [ "$pfx" = "" ]; then
+            check_func strtoll || add_cflags -Dstrtoll=_strtoi64
+            check_func strtoull || add_cflags -Dstrtoull=_strtoui64
+        fi
+    elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
+        eval ${pfx}libc_type=klibc
+    elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
+        eval ${pfx}libc_type=bionic
+    elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
+        eval ${pfx}libc_type=solaris
+        add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
+    elif test_${pfx}cpp_condition sys/version.h "defined __DJGPP__"; then
+        eval ${pfx}libc_type=djgpp
+        add_cppflags -U__STRICT_ANSI__
+        add_cflags "-include $source_path/compat/djgpp/math.h"
+        add_compat djgpp/math.o
+    fi
+    test_${pfx}cc <<EOF
+#include <time.h>
+void *v = localtime_r;
+EOF
+test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
+#include <time.h>
+void *v = localtime_r;
+EOF
+
+    eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
+}
+
+probe_libc
+probe_libc host_
+
+# hacks for compiler/libc/os combinations
+
+case $libc_type in
+    bionic)
+        add_compat strtod.o strtod=avpriv_strtod
+        ;;
+esac
+
+check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
+    add_cppflags '-I\$(SRC_PATH)/compat/float'
+
+test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
+
+set_default libdir
+: ${shlibdir_default:="$libdir"}
+: ${pkgconfigdir_default:="$libdir/pkgconfig"}
+
+set_default $PATHS_LIST
+set_default nm
+
+disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
+
+enable_weak_pic() {
+    disabled pic && return
+    enable pic
+    add_cppflags -DPIC
+    case "$target_os" in
+    mingw*|cygwin*|win*)
+        ;;
+    *)
+        add_cflags -fPIC
+        add_asflags -fPIC
+        ;;
+    esac
+}
+
+enabled pic && enable_weak_pic
+
+test_cc <<EOF || die "Symbol mangling check failed."
+int ff_extern;
+EOF
+sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
+extern_prefix=${sym%%ff_extern*}
+
+! disabled inline_asm && check_inline_asm inline_asm '"" ::'
+
+for restrict_keyword in restrict __restrict__ __restrict ""; do
+    test_code cc "" "char * $restrict_keyword p" && break
+done
+
+check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
+
+# The global variable ensures the bits appear unchanged in the object file.
+test_cc <<EOF || die "endian test failed"
+unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
+EOF
+od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
+
+check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
+
+if ! enabled ppc64 || enabled bigendian; then
+    disable vsx
+fi
+
+check_gas() {
+    log "check_gas using '$as' as AS"
+    # :vararg is used on aarch64, arm and ppc altivec
+    check_as vararg "
+.macro m n, y:vararg=0
+\n: .int \y
+.endm
+m x" || return 1
+    # .altmacro is only used in arm asm
+    ! enabled arm || check_as gnu_as ".altmacro"
+}
+
+if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
+    nogas=:
+    enabled_any arm aarch64 && nogas=die
+    enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
+    as_noop=-v
+
+    case $as_type in
+        arm*) gaspp_as_type=armasm; as_noop=-h ;;
+        gcc)  gaspp_as_type=gas ;;
+        *)    gaspp_as_type=$as_type ;;
+    esac
+
+    [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
+
+    test "${as#*gas-preprocessor.pl}" != "$as" ||
+    test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
+        gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
+
+    if ! check_gas ; then
+        as=${gas:=$as}
+        check_gas || \
+            $nogas "GNU assembler not found, install/update gas-preprocessor"
+    fi
+
+    check_as as_func ".func test
+                      .endfunc"
+fi
+
+check_inline_asm inline_asm_labels '"1:\n"'
+
+check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
+
+if enabled aarch64; then
+    enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
+    # internal assembler in clang 3.3 does not support this instruction
+    enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
+    enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
+
+    map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
+
+elif enabled alpha; then
+
+    check_cflags -mieee
+
+elif enabled arm; then
+
+    enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
+    test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
+float func(float a, float b){ return a+b; }
+EOF
+    enabled thumb && check_cflags -mthumb || check_cflags -marm
+
+    if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
+        :
+    elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
+        :
+    elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
+        case "${cross_prefix:-$cc}" in
+            *hardfloat*) enable vfp_args; fpabi=vfp ;;
+            *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
+__asm__ (".eabi_attribute 28, 1");
+int main(void) { return 0; }
+EOF
+        esac
+        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
+    fi
+
+    enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
+    enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
+    enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
+    enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
+    enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
+    enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
+    enabled setend  && check_insn setend  'setend be'
+
+    [ $target_os = linux ] || [ $target_os = android ] ||
+        map 'enabled_any ${v}_external ${v}_inline || disable $v' \
+            $ARCH_EXT_LIST_ARM
+
+    check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
+
+    check_as as_arch_directive ".arch armv7-a"
+    check_as as_dn_directive   "ra .dn d0.i16"
+    check_as as_fpu_directive  ".fpu neon"
+
+    # llvm's integrated assembler supports .object_arch from llvm 3.5
+    [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
+        check_as as_object_arch ".object_arch armv4"
+
+    # MS armasm fails to assemble our PIC constructs
+    [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
+
+elif enabled mips; then
+
+    enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
+    enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
+    enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
+
+    # Enable minimum ISA based on selected options
+    if enabled mips64; then
+        enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
+        enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
+        disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
+    else
+        enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
+        enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
+        enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
+        disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
+    fi
+
+    enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
+    enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
+    enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_headers msa.h || disable msa
+    enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
+    enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
+    enabled msa && enabled msa2 && check_inline_asm_flags msa2 '"nxbits.any.b $w0, $w0"' '-mmsa2' && check_headers msa2.h || disable msa2
+
+    if enabled bigendian && enabled msa; then
+        disable msa
+    fi
+
+elif enabled parisc; then
+
+    if enabled gcc; then
+        case $($cc -dumpversion) in
+            4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
+        esac
+    fi
+
+elif enabled ppc; then
+
+    enable local_aligned
+
+    check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
+    check_inline_asm ibm_asm   '"add 0, 0, 0"'
+    check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
+    check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
+
+    if enabled altivec; then
+        check_cflags -maltivec -mabi=altivec
+
+        # check if our compiler supports Motorola AltiVec C API
+        check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
+                                    vector signed int v2 = (vector signed int) { 1 };
+                                    v1 = vec_add(v1, v2);"
+
+        enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
+    fi
+
+    if enabled vsx; then
+        check_cflags -mvsx &&
+        check_cc vsx altivec.h "int v[4] = { 0 };
+                                vector signed int v1 = vec_vsx_ld(0, v);"
+    fi
+
+    if enabled power8; then
+        check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
+    fi
+
+elif enabled x86; then
+
+    check_builtin rdtsc    intrin.h   "__rdtsc()"
+    check_builtin mm_empty mmintrin.h "_mm_empty()"
+
+    enable local_aligned
+
+    # check whether EBP is available on x86
+    # As 'i' is stored on the stack, this program will crash
+    # if the base pointer is used to access it because the
+    # base pointer is cleared in the inline assembly code.
+    check_exec_crash <<EOF && enable ebp_available
+volatile int i=0;
+__asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
+return i;
+EOF
+
+    # check whether EBX is available on x86
+    check_inline_asm ebx_available '""::"b"(0)' &&
+        check_inline_asm ebx_available '"":::"%ebx"'
+
+    # check whether xmm clobbers are supported
+    check_inline_asm xmm_clobbers '"":::"%xmm0"'
+
+    check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
+        check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
+
+    # check whether binutils is new enough to compile SSSE3/MMXEXT
+    enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
+    enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
+
+    probe_x86asm(){
+        x86asmexe_probe=$1
+        if test_cmd $x86asmexe_probe -v; then
+            x86asmexe=$x86asmexe_probe
+            x86asm_type=nasm
+            x86asm_debug="-g -F dwarf"
+            X86ASMDEP=
+            X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
+        elif test_cmd $x86asmexe_probe --version; then
+            x86asmexe=$x86asmexe_probe
+            x86asm_type=yasm
+            x86asm_debug="-g dwarf2"
+            X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
+            X86ASM_DEPFLAGS=
+        fi
+        check_x86asm x86asm "movbe ecx, [5]"
+    }
+
+    if ! disabled_any asm mmx x86asm; then
+        disable x86asm
+        for program in $x86asmexe nasm yasm; do
+            probe_x86asm $program && break
+        done
+        disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
+        X86ASMFLAGS="-f $objformat"
+        enabled pic               && append X86ASMFLAGS "-DPIC"
+        test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
+        case "$objformat" in
+            elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
+        esac
+
+        check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
+        check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
+        check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
+        check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
+        check_x86asm cpunop          "CPU amdnop"
+    fi
+
+    case "$cpu" in
+        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
+            disable fast_clz
+        ;;
+    esac
+
+fi
+
+check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
+
+check_ldflags -Wl,--as-needed
+check_ldflags -Wl,-z,noexecstack
+
+if ! disabled network; then
+    check_func getaddrinfo $network_extralibs
+    check_func inet_aton $network_extralibs
+
+    check_type netdb.h "struct addrinfo"
+    check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
+    check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
+    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
+    check_type poll.h "struct pollfd"
+    check_type netinet/sctp.h "struct sctp_event_subscribe"
+    check_struct "sys/socket.h" "struct msghdr" msg_flags
+    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
+    check_type netinet/in.h "struct sockaddr_in6"
+    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
+    check_type "sys/types.h sys/socket.h" socklen_t
+
+    # Prefer arpa/inet.h over winsock2
+    if check_headers arpa/inet.h ; then
+        check_func closesocket
+    elif check_headers winsock2.h ; then
+        check_func_headers winsock2.h closesocket -lws2 &&
+            network_extralibs="-lws2" ||
+        { check_func_headers winsock2.h closesocket -lws2_32 &&
+            network_extralibs="-lws2_32"; } || disable winsock2_h network
+        check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
+
+        check_type ws2tcpip.h socklen_t
+        check_type ws2tcpip.h "struct addrinfo"
+        check_type ws2tcpip.h "struct group_source_req"
+        check_type ws2tcpip.h "struct ip_mreq_source"
+        check_type ws2tcpip.h "struct ipv6_mreq"
+        check_type winsock2.h "struct pollfd"
+        check_struct winsock2.h "struct sockaddr" sa_len
+        check_type ws2tcpip.h "struct sockaddr_in6"
+        check_type ws2tcpip.h "struct sockaddr_storage"
+    else
+        disable network
+    fi
+fi
+
+check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
+check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
+check_builtin MemoryBarrier windows.h "MemoryBarrier()"
+check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
+check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
+check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
+check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
+
+case "$custom_allocator" in
+    jemalloc)
+        # jemalloc by default does not use a prefix
+        require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
+    ;;
+    tcmalloc)
+        require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
+        malloc_prefix=tc_
+    ;;
+esac
+
+check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
+check_func  ${malloc_prefix}memalign            && enable memalign
+check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
+
+check_func  access
+check_func_headers stdlib.h arc4random
+check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
+check_func  fcntl
+check_func  fork
+check_func  gethrtime
+check_func  getopt
+check_func  getrusage
+check_func  gettimeofday
+check_func  isatty
+check_func  mkstemp
+check_func  mmap
+check_func  mprotect
+# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
+check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
+check_func  sched_getaffinity
+check_func  setrlimit
+check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
+check_func  strerror_r
+check_func  sysconf
+check_func  sysctl
+check_func  usleep
+
+check_func_headers conio.h kbhit
+check_func_headers io.h setmode
+check_func_headers lzo/lzo1x.h lzo1x_999_compress
+check_func_headers mach/mach_time.h mach_absolute_time
+check_func_headers stdlib.h getenv
+check_func_headers sys/stat.h lstat
+
+check_func_headers windows.h GetProcessAffinityMask
+check_func_headers windows.h GetProcessTimes
+check_func_headers windows.h GetSystemTimeAsFileTime
+check_func_headers windows.h LoadLibrary
+check_func_headers windows.h MapViewOfFile
+check_func_headers windows.h PeekNamedPipe
+check_func_headers windows.h SetConsoleTextAttribute
+check_func_headers windows.h SetConsoleCtrlHandler
+check_func_headers windows.h Sleep
+check_func_headers windows.h VirtualAlloc
+check_func_headers glob.h glob
+enabled xlib &&
+    check_lib xlib "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
+
+check_headers direct.h
+check_headers dirent.h
+check_headers dxgidebug.h
+check_headers dxva.h
+check_headers dxva2api.h -D_WIN32_WINNT=0x0600
+check_headers io.h
+check_headers linux/perf_event.h
+check_headers libcrystalhd/libcrystalhd_if.h
+check_headers malloc.h
+check_headers net/udplite.h
+check_headers poll.h
+check_headers sys/param.h
+check_headers sys/resource.h
+check_headers sys/select.h
+check_headers sys/time.h
+check_headers sys/un.h
+check_headers termios.h
+check_headers unistd.h
+check_headers valgrind/valgrind.h
+check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
+check_headers windows.h
+check_headers X11/extensions/XvMClib.h
+check_headers asm/types.h
+
+# it seems there are versions of clang in some distros that try to use the
+# gcc headers, which explodes for stdatomic
+# so we also check that atomics actually work here
+check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
+
+check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
+check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&
+    check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
+check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
+check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
+check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
+
+check_lib android android/native_window.h ANativeWindow_acquire -landroid
+check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
+check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
+
+enabled appkit       && check_apple_framework AppKit
+enabled audiotoolbox && check_apple_framework AudioToolbox
+enabled avfoundation && check_apple_framework AVFoundation
+enabled coreimage    && check_apple_framework CoreImage
+enabled videotoolbox && check_apple_framework VideoToolbox
+
+check_apple_framework CoreFoundation
+check_apple_framework CoreMedia
+check_apple_framework CoreVideo
+
+enabled avfoundation && {
+    disable coregraphics applicationservices
+    check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
+    check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
+
+enabled videotoolbox && {
+    check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
+    check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
+    check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
+}
+
+check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
+
+check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
+check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
+check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
+check_type "windows.h d3d11.h" "ID3D11VideoContext"
+check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
+
+check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
+
+if [ -z "$nvccflags" ]; then
+    nvccflags=$nvccflags_default
+fi
+
+if enabled x86_64 || enabled ppc64 || enabled aarch64; then
+    nvccflags="$nvccflags -m64"
+else
+    nvccflags="$nvccflags -m32"
+fi
+
+if enabled cuda_nvcc; then
+    nvccflags="$nvccflags -ptx"
+else
+    nvccflags="$nvccflags -S -nocudalib -nocudainc --cuda-device-only -include ${source_link}/compat/cuda/cuda_runtime.h"
+    check_nvcc cuda_llvm
+fi
+
+if ! disabled ffnvcodec; then
+    ffnv_hdr_list="ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h"
+    check_pkg_config ffnvcodec "ffnvcodec >= 9.0.18.0" "$ffnv_hdr_list" "" || \
+      check_pkg_config ffnvcodec "ffnvcodec >= 8.2.15.8 ffnvcodec < 8.3" "$ffnv_hdr_list" "" || \
+      check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.9 ffnvcodec < 8.2" "$ffnv_hdr_list" "" || \
+      check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.9 ffnvcodec < 8.1" "$ffnv_hdr_list" ""
+fi
+
+check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
+
+if ! disabled w32threads && ! enabled pthreads; then
+    check_func_headers "windows.h process.h" _beginthreadex &&
+        check_type "windows.h" CONDITION_VARIABLE &&
+        check_type "windows.h" INIT_ONCE &&
+        enable w32threads || disable w32threads
+    if ! enabled w32threads && enabled winrt; then
+        check_func_headers "windows.h" CreateThread &&
+            enable w32threads || disable w32threads
+    fi
+fi
+
+# check for some common methods of building with pthread support
+# do this before the optional library checks as some of them require pthreads
+if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
+    if check_lib pthreads pthread.h pthread_join   -pthread &&
+       check_lib pthreads pthread.h pthread_create -pthread; then
+        add_cflags -pthread
+    elif check_lib pthreads pthread.h pthread_join   -pthreads &&
+         check_lib pthreads pthread.h pthread_create -pthreads; then
+        add_cflags -pthreads
+    elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
+         check_lib pthreads pthread.h pthread_create -ldl -pthread; then
+        add_cflags -ldl -pthread
+    elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
+         check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
+        :
+    elif check_lib pthreads pthread.h pthread_join   -lpthread &&
+         check_lib pthreads pthread.h pthread_create -lpthread; then
+        :
+    elif check_func pthread_join && check_func pthread_create; then
+        enable pthreads
+    fi
+    check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
+
+    if enabled pthreads; then
+        check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
+        check_func pthread_cancel $pthreads_extralibs
+    fi
+fi
+
+enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
+                   check_lib zlib   zlib.h      zlibVersion    -lz; }
+enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
+enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
+
+# On some systems dynamic loading requires no extra linker flags
+check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
+
+check_lib libm math.h sin -lm
+
+atan2f_args=2
+copysign_args=2
+hypot_args=2
+ldexpf_args=2
+powf_args=2
+
+for func in $MATH_FUNCS; do
+    eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
+done
+
+for func in $COMPLEX_FUNCS; do
+    eval check_complexfunc $func \${${func}_args:-1}
+done
+
+# these are off by default, so fail if requested and not available
+enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checking for nvcc."; }
+enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
+enabled decklink          && { require_headers DeckLinkAPI.h &&
+                               { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a090500" || die "ERROR: Decklink API version must be >= 10.9.5."; } }
+enabled frei0r            && require_headers "frei0r.h dlfcn.h"
+enabled gmp               && require gmp gmp.h mpz_export -lgmp
+enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
+enabled jni               && { [ $target_os = "android" ] && check_headers jni.h && enabled pthreads || die "ERROR: jni not found"; }
+enabled ladspa            && require_headers "ladspa.h dlfcn.h"
+enabled libaom            && require_pkg_config libaom "aom >= 1.0.0" aom/aom_codec.h aom_codec_version
+enabled libaribb24        && { check_pkg_config libaribb24 "aribb24 > 1.0.3" "aribb24/aribb24.h" arib_instance_new ||
+                               { enabled gpl && require_pkg_config libaribb24 aribb24 "aribb24/aribb24.h" arib_instance_new; } ||
+                               die "ERROR: libaribb24 requires version higher than 1.0.3 or --enable-gpl."; }
+enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
+enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
+enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init
+enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
+enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
+enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
+                             { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
+                               die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
+enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
+enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
+enabled libdav1d          && require_pkg_config libdav1d "dav1d >= 0.2.1" "dav1d/dav1d.h" dav1d_version
+enabled libdavs2          && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
+enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
+enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
+enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
+                               { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
+                                 warn "using libfdk without pkg-config"; } }
+flite_extralibs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
+enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
+enabled fontconfig        && enable libfontconfig
+enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
+enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
+enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
+enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
+                               require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
+enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
+                                   check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
+                               done || die "ERROR: libgsm not found"; }
+enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
+enabled libklvanc         && require libklvanc libklvanc/vanc.h klvanc_context_create -lklvanc
+enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
+enabled liblensfun        && require_pkg_config liblensfun lensfun lensfun.h lf_db_new
+# While it may appear that require is being used as a pkg-config
+# fallback for libmfx, it is actually being used to detect a different
+# installation route altogether.  If libmfx is installed via the Intel
+# Media SDK or Intel Media Server Studio, these don't come with
+# pkg-config support.  Instead, users should make sure that the build
+# can find the libraries and headers through other means.
+enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
+                               { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
+enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
+enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
+enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_load ||
+                               require libmysofa mysofa.h mysofa_load -lmysofa $zlib_extralibs; }
+enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei ||
+                               check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc -lnppidei ||
+                               die "ERROR: libnpp not found"; }
+enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
+enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
+enabled libopencv         && { check_headers opencv2/core/core_c.h &&
+                               { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
+                                 require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
+                               require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
+enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
+enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
+                               { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
+enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
+enabled libopus           && {
+    enabled libopus_decoder && {
+        require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
+    }
+    enabled libopus_encoder && {
+        require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
+    }
+}
+enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
+enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
+enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
+enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
+enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
+enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
+                               require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
+enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
+enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
+enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
+enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
+enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
+enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
+enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
+enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
+enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure
+enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
+                             { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
+                               die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
+enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
+enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
+enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 1.3.9" libvmaf.h compute_vmaf
+enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
+enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
+                             require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
+
+enabled libvpx            && {
+    enabled libvpx_vp8_decoder && {
+        check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
+            check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp8_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
+    }
+    enabled libvpx_vp8_encoder && {
+        check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
+            check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp8_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
+    }
+    enabled libvpx_vp9_decoder && {
+        check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
+            check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
+    }
+    enabled libvpx_vp9_encoder && {
+        check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
+            check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
+    }
+    if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
+        die "libvpx enabled but no supported decoders found"
+    fi
+}
+
+enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
+enabled libwebp           && {
+    enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
+    enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
+enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
+                               { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
+                                 warn "using libx264 without pkg-config"; } } &&
+                             require_cpp_condition libx264 x264.h "X264_BUILD >= 118" &&
+                             check_cpp_condition libx262 x264.h "X264_MPEG2"
+enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
+                             require_cpp_condition libx265 x265.h "X265_BUILD >= 68"
+enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
+enabled libxavs2          && require_pkg_config libxavs2 "xavs2 >= 1.3.0" "stdint.h xavs2.h" xavs2_api_get
+enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
+enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
+enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new
+enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
+                             { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
+                               enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
+enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
+enabled mbedtls           && { check_pkg_config mbedtls mbedtls mbedtls/x509_crt.h mbedtls_x509_crt_init ||
+                               check_pkg_config mbedtls mbedtls mbedtls/ssl.h mbedtls_ssl_init ||
+                               check_lib mbedtls mbedtls/ssl.h mbedtls_ssl_init -lmbedtls -lmbedx509 -lmbedcrypto ||
+                               die "ERROR: mbedTLS not found"; }
+enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
+enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
+                               { ! enabled cross_compile &&
+                                 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
+                                 add_ldflags -L/opt/vc/lib/ &&
+                                 check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
+                               die "ERROR: mmal not found" &&
+                               check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
+enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
+                               check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
+                               die "ERROR: openal not found"; } &&
+                             { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
+                               die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
+enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
+                               check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
+                               check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
+                               die "ERROR: opencl not found"; } &&
+                             { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
+                               test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
+                               die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
+enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
+                               check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
+                               check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
+                               check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
+                               die "ERROR: opengl not found."
+                             }
+enabled omx               && require_headers OMX_Core.h
+enabled omx_rpi           && { check_headers OMX_Core.h ||
+                               { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_headers OMX_Core.h ; } ||
+                               die "ERROR: OpenMAX IL headers not found"; } && enable omx
+enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
+                               check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
+                               check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
+                               check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
+                               check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
+                               die "ERROR: openssl not found"; }
+enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
+enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
+                               require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
+                               { enabled libdrm ||
+                                 die "ERROR: rkmpp requires --enable-libdrm"; }
+                             }
+enabled vapoursynth       && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init
+
+
+if enabled gcrypt; then
+    GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
+    if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
+        gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
+        gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
+        check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
+            die "ERROR: gcrypt not found"
+        add_cflags $gcrypt_cflags
+    else
+        require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
+    fi
+fi
+
+if enabled sdl2; then
+    SDL2_CONFIG="${cross_prefix}sdl2-config"
+    test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
+    if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
+        sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
+        sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
+        test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
+        test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
+        check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
+            enable sdl2
+    fi
+    if test $target_os = "mingw32"; then
+        sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
+    fi
+fi
+
+if enabled decklink; then
+    case $target_os in
+        mingw32*|mingw64*|win32|win64)
+            decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
+            decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
+            ;;
+    esac
+fi
+
+enabled securetransport &&
+    check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
+    check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
+        disable securetransport
+
+enabled securetransport &&
+    check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
+
+enabled schannel &&
+    check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
+    test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
+    schannel_extralibs="-lsecur32" ||
+        disable schannel
+
+makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
+enabled makeinfo \
+    && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
+    && enable makeinfo_html || disable makeinfo_html
+disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
+perl -v            > /dev/null 2>&1 && enable perl      || disable perl
+pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
+rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
+
+# check V4L2 codecs available in the API
+check_headers linux/fb.h
+check_headers linux/videodev2.h
+test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
+check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
+check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
+check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
+check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
+check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
+check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
+check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
+check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
+check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
+check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
+
+check_headers sys/videoio.h
+test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
+
+check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
+check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
+# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
+# w32api 3.12 had it defined wrong
+check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
+
+check_type "dshow.h" IBaseFilter
+
+# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
+check_headers "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
+    check_headers "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
+    check_headers "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
+    check_headers "dev/ic/bt8xx.h"
+
+if check_struct sys/soundcard.h audio_buf_info bytes; then
+    enable_sanitized sys/soundcard.h
+else
+    test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
+    #include <sys/soundcard.h>
+    audio_buf_info abc;
+EOF
+fi
+
+enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
+    check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
+
+enabled libjack &&
+    require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
+
+enabled sndio && check_lib sndio sndio.h sio_open -lsndio
+
+if enabled libcdio; then
+    check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
+    check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
+    check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
+    check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
+    die "ERROR: No usable libcdio/cdparanoia found"
+fi
+
+enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
+    disable libxcb_shm libxcb_shape libxcb_xfixes
+
+if enabled libxcb; then
+    enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
+    enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
+    enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
+fi
+
+check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
+
+# d3d11va requires linking directly to dxgi and d3d11 if not building for
+# the desktop api partition
+test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
+#ifdef WINAPI_FAMILY
+#include <winapifamily.h>
+#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+#error desktop, not uwp
+#else
+// WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
+#endif
+#else
+#error no family set
+#endif
+EOF
+
+enabled vaapi &&
+    check_pkg_config vaapi "libva >= 0.35.0" "va/va.h" vaInitialize
+
+if enabled vaapi; then
+    check_pkg_config vaapi_drm "libva-drm" "va/va_drm.h" vaGetDisplayDRM
+
+    if enabled xlib; then
+        check_pkg_config vaapi_x11 "libva-x11" "va/va_x11.h" vaGetDisplay
+    fi
+
+    check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
+
+    check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
+    check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
+    check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" rotation_flags
+    check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
+    check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
+    check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
+    check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
+fi
+
+if enabled_all opencl libdrm ; then
+    check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
+        enable opencl_drm_beignet
+    check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
+        enable opencl_drm_arm
+fi
+
+if enabled_all opencl vaapi ; then
+    if enabled opencl_drm_beignet ; then
+        enable opencl_vaapi_beignet
+    else
+        check_type "CL/cl.h CL/cl_va_api_media_sharing_intel.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
+            enable opencl_vaapi_intel_media
+    fi
+fi
+
+if enabled_all opencl dxva2 ; then
+    check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
+        enable opencl_dxva2
+fi
+
+if enabled_all opencl d3d11va ; then
+    check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
+        enable opencl_d3d11
+fi
+
+enabled vdpau &&
+    check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
+
+enabled vdpau &&
+    check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
+
+enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
+
+if enabled x86; then
+    case $target_os in
+        mingw32*|mingw64*|win32|win64|linux|cygwin*)
+            ;;
+        *)
+            disable ffnvcodec cuvid nvdec nvenc
+            ;;
+    esac
+elif enabled ppc64 && ! enabled bigendian; then
+    case $target_os in
+        linux)
+            ;;
+        *)
+            disable ffnvcodec cuvid nvdec nvenc
+            ;;
+    esac
+else
+    disable ffnvcodec cuvid nvdec nvenc
+fi
+
+enabled ffnvcodec && enable cuda
+
+enabled nvenc &&
+    test_cc -I$source_path <<EOF || disable nvenc
+#include <ffnvcodec/nvEncodeAPI.h>
+NV_ENCODE_API_FUNCTION_LIST flist;
+void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
+int main(void) { return 0; }
+EOF
+
+enabled amf &&
+    check_cpp_condition amf "AMF/core/Version.h" \
+        "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001"
+
+# Funny iconv installations are not unusual, so check it after all flags have been set
+if enabled libc_iconv; then
+    check_func_headers iconv.h iconv
+elif enabled iconv; then
+    check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
+fi
+
+enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
+
+# add some useful compiler flags if supported
+check_cflags -Wdeclaration-after-statement
+check_cflags -Wall
+check_cflags -Wdisabled-optimization
+check_cflags -Wpointer-arith
+check_cflags -Wredundant-decls
+check_cflags -Wwrite-strings
+check_cflags -Wtype-limits
+check_cflags -Wundef
+check_cflags -Wmissing-prototypes
+check_cflags -Wno-pointer-to-int-cast
+check_cflags -Wstrict-prototypes
+check_cflags -Wempty-body
+
+if enabled extra_warnings; then
+    check_cflags -Wcast-qual
+    check_cflags -Wextra
+    check_cflags -Wpedantic
+fi
+
+check_disable_warning(){
+    warning_flag=-W${1#-Wno-}
+    test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
+}
+
+test_cflags -Werror=unused-command-line-argument &&
+    append unknown_warning_flags "-Werror=unused-command-line-argument"
+test_cflags -Werror=unknown-warning-option &&
+    append unknown_warning_flags "-Werror=unknown-warning-option"
+
+check_disable_warning -Wno-parentheses
+check_disable_warning -Wno-switch
+check_disable_warning -Wno-format-zero-length
+check_disable_warning -Wno-pointer-sign
+check_disable_warning -Wno-unused-const-variable
+check_disable_warning -Wno-bool-operation
+check_disable_warning -Wno-char-subscripts
+
+check_disable_warning_headers(){
+    warning_flag=-W${1#-Wno-}
+    test_cflags $warning_flag && add_cflags_headers $1
+}
+
+check_disable_warning_headers -Wno-deprecated-declarations
+check_disable_warning_headers -Wno-unused-variable
+
+test_cc <<EOF && enable blocks_extension
+void (^block)(void);
+EOF
+
+# add some linker flags
+check_ldflags -Wl,--warn-common
+check_ldflags -Wl,-rpath-link=:libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
+enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
+test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
+
+# add some strip flags
+check_stripflags -x
+
+enabled neon_clobber_test &&
+    check_ldflags -Wl,--wrap,avcodec_open2              \
+                  -Wl,--wrap,avcodec_decode_audio4      \
+                  -Wl,--wrap,avcodec_decode_video2      \
+                  -Wl,--wrap,avcodec_decode_subtitle2   \
+                  -Wl,--wrap,avcodec_encode_audio2      \
+                  -Wl,--wrap,avcodec_encode_video2      \
+                  -Wl,--wrap,avcodec_encode_subtitle    \
+                  -Wl,--wrap,avcodec_send_packet        \
+                  -Wl,--wrap,avcodec_receive_packet     \
+                  -Wl,--wrap,avcodec_send_frame         \
+                  -Wl,--wrap,avcodec_receive_frame      \
+                  -Wl,--wrap,swr_convert                \
+                  -Wl,--wrap,avresample_convert ||
+    disable neon_clobber_test
+
+enabled xmm_clobber_test &&
+    check_ldflags -Wl,--wrap,avcodec_open2              \
+                  -Wl,--wrap,avcodec_decode_audio4      \
+                  -Wl,--wrap,avcodec_decode_video2      \
+                  -Wl,--wrap,avcodec_decode_subtitle2   \
+                  -Wl,--wrap,avcodec_encode_audio2      \
+                  -Wl,--wrap,avcodec_encode_video2      \
+                  -Wl,--wrap,avcodec_encode_subtitle    \
+                  -Wl,--wrap,avcodec_send_packet        \
+                  -Wl,--wrap,avcodec_receive_packet     \
+                  -Wl,--wrap,avcodec_send_frame         \
+                  -Wl,--wrap,avcodec_receive_frame      \
+                  -Wl,--wrap,swr_convert                \
+                  -Wl,--wrap,avresample_convert         \
+                  -Wl,--wrap,sws_scale ||
+    disable xmm_clobber_test
+
+check_ld "cc" proper_dce <<EOF
+extern const int array[512];
+static inline int func(void) { return array[0]; }
+int main(void) { return 0; }
+EOF
+
+if enabled proper_dce; then
+    echo "X { local: *; };" > $TMPV
+    if test_ldflags -Wl,${version_script},$TMPV; then
+        append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
+        quotes='""'
+        test_cc <<EOF && enable symver_asm_label
+void ff_foo(void) __asm__ ("av_foo@VERSION");
+void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
+EOF
+        test_cc <<EOF && enable symver_gnu_asm
+__asm__(".symver ff_foo,av_foo@VERSION");
+void ff_foo(void) {}
+EOF
+    fi
+fi
+
+if [ -z "$optflags" ]; then
+    if enabled small; then
+        optflags=$cflags_size
+    elif enabled optimizations; then
+        optflags=$cflags_speed
+    else
+        optflags=$cflags_noopt
+    fi
+fi
+
+check_optflags(){
+    check_cflags "$@"
+    enabled lto && check_ldflags "$@"
+}
+
+check_optflags $optflags
+check_optflags -fno-math-errno
+check_optflags -fno-signed-zeros
+
+if enabled lto; then
+    test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
+    check_cflags  -flto
+    check_ldflags -flto $cpuflags
+    disable inline_asm_direct_symbol_refs
+fi
+
+enabled ftrapv && check_cflags -ftrapv
+
+test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
+int x;
+EOF
+
+
+if enabled icc; then
+    # Just warnings, no remarks
+    check_cflags -w1
+    # -wd: Disable following warnings
+    # 144, 167, 556: -Wno-pointer-sign
+    # 188: enumerated type mixed with another type
+    # 1292: attribute "foo" ignored
+    # 1419: external declaration in primary source file
+    # 10006: ignoring unknown option -fno-signed-zeros
+    # 10148: ignoring unknown option -Wno-parentheses
+    # 10156: ignoring option '-W'; no argument required
+    # 13200: No EMMS instruction before call to function
+    # 13203: No EMMS instruction before return from function
+    check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
+    # 11030: Warning unknown option --as-needed
+    # 10156: ignoring option '-export'; no argument required
+    check_ldflags -wd10156,11030
+    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
+    enable ebp_available
+    # The test above does not test linking
+    enabled lto && disable symver_asm_label
+    if enabled x86_32; then
+        icc_version=$($cc -dumpversion)
+        test ${icc_version%%.*} -ge 11 &&
+            check_cflags -falign-stack=maintain-16-byte ||
+            disable aligned_stack
+    fi
+elif enabled gcc; then
+    check_optflags -fno-tree-vectorize
+    check_cflags -Werror=format-security
+    check_cflags -Werror=implicit-function-declaration
+    check_cflags -Werror=missing-prototypes
+    check_cflags -Werror=return-type
+    check_cflags -Werror=vla
+    check_cflags -Wformat
+    check_cflags -fdiagnostics-color=auto
+    enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
+    if enabled x86_32; then
+        case $target_os in
+        *bsd*)
+            # BSDs don't guarantee a 16 byte aligned stack, but we can
+            # request GCC to try to maintain 16 byte alignment throughout
+            # function calls. Library entry points that might call assembly
+            # functions align the stack. (The parameter means 2^4 bytes.)
+            check_cflags -mpreferred-stack-boundary=4
+            ;;
+        esac
+    fi
+elif enabled llvm_gcc; then
+    check_cflags -mllvm -stack-alignment=16
+elif enabled clang; then
+    if enabled x86_32; then
+        # Clang doesn't support maintaining alignment without assuming the
+        # same alignment in every function. If 16 byte alignment would be
+        # enabled, one would also have to either add attribute_align_arg on
+        # every single entry point into the libraries or enable -mstackrealign
+        # (doing stack realignment in every single function).
+        case $target_os in
+        mingw32|win32|*bsd*)
+            disable aligned_stack
+            ;;
+        *)
+            check_cflags -mllvm -stack-alignment=16
+            check_cflags -mstack-alignment=16
+            ;;
+        esac
+    else
+        check_cflags -mllvm -stack-alignment=16
+        check_cflags -mstack-alignment=16
+    fi
+    check_cflags -Qunused-arguments
+    check_cflags -Werror=implicit-function-declaration
+    check_cflags -Werror=missing-prototypes
+    check_cflags -Werror=return-type
+elif enabled cparser; then
+    add_cflags -Wno-missing-variable-declarations
+    add_cflags -Wno-empty-statement
+elif enabled armcc; then
+    add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
+    add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
+    # 2523: use of inline assembly is deprecated
+    add_cflags -W${armcc_opt},--diag_suppress=2523
+    add_cflags -W${armcc_opt},--diag_suppress=1207
+    add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
+    add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
+    add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
+    add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
+elif enabled pathscale; then
+    add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
+    disable inline_asm
+elif enabled_any msvc icl; then
+    enabled x86_32 && disable aligned_stack
+    enabled_all x86_32 debug && add_cflags -Oy-
+    enabled debug && add_ldflags -debug
+    enable pragma_deprecated
+    if enabled icl; then
+        # -Qansi-alias is basically -fstrict-aliasing, but does not work
+        # (correctly) on icl 13.x.
+        test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
+            add_cflags -Qansi-alias
+        # Some inline asm is not compilable in debug
+        if enabled debug; then
+            disable ebp_available
+            disable ebx_available
+        fi
+    fi
+    # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
+    check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
+    # The CRT headers contain __declspec(restrict) in a few places, but if redefining
+    # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
+    # (as it ends up if the restrict redefine is done before including stdlib.h), while
+    # MSVC 2013 and newer can handle it fine.
+    # If this declspec fails, force including stdlib.h before the restrict redefinition
+    # happens in config.h.
+    if [ $restrict_keyword != restrict ]; then
+        test_cc <<EOF || add_cflags -FIstdlib.h
+__declspec($restrict_keyword) void *foo(int);
+EOF
+    fi
+    # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
+    # Issue has been fixed in MSVC v19.00.24218.
+    test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
+        check_cflags -d2SSAOptimizer-
+    # enable utf-8 source processing on VS2015 U2 and newer
+    test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
+        add_cflags -utf-8
+fi
+
+for pfx in "" host_; do
+    varname=${pfx%_}cc_type
+    eval "type=\$$varname"
+    if [ "$type" = "msvc" ]; then
+        test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
+static inline int foo(int a) { return a; }
+EOF
+    fi
+done
+
+case $as_type in
+    clang)
+        add_asflags -Qunused-arguments
+    ;;
+esac
+
+case $ld_type in
+    clang)
+        check_ldflags -Qunused-arguments
+    ;;
+esac
+
+enable frame_thread_encoder
+
+enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
+
+check_deps $CONFIG_LIST       \
+           $CONFIG_EXTRA      \
+           $HAVE_LIST         \
+           $ALL_COMPONENTS    \
+
+enabled threads && ! enabled pthreads && ! enabled atomics_native && die "non pthread threading without atomics not supported, try adding --enable-pthreads or --cpu=i486 or higher if you are on x86"
+enabled avresample && warn "Building with deprecated library libavresample"
+
+case $target_os in
+haiku)
+    disable memalign
+    disable posix_memalign
+    ;;
+*-dos|freedos|opendos)
+    if test_cpp_condition sys/version.h "defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 5"; then
+        disable memalign
+    fi
+    ;;
+esac
+
+flatten_extralibs(){
+    nested_entries=
+    list_name=$1
+    eval list=\$${1}
+    for entry in $list; do
+        entry_copy=$entry
+        resolve entry_copy
+        flat_entries=
+        for e in $entry_copy; do
+            case $e in
+                *_extralibs) nested_entries="$nested_entries$e ";;
+                          *) flat_entries="$flat_entries$e ";;
+            esac
+        done
+        eval $entry="\$flat_entries"
+    done
+    append $list_name "$nested_entries"
+
+    resolve nested_entries
+    if test -n "$(filter '*_extralibs' $nested_entries)"; then
+        flatten_extralibs $list_name
+    fi
+}
+
+flatten_extralibs_wrapper(){
+    list_name=$1
+    flatten_extralibs $list_name
+    unique $list_name
+    resolve $list_name
+    eval $list_name=\$\(\$ldflags_filter \$$list_name\)
+    eval printf \''%s'\' \""\$$list_name"\"
+}
+
+for linkunit in $LIBRARY_LIST; do
+    unset current_extralibs
+    eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
+    for comp in ${components}; do
+        enabled $comp || continue
+        comp_extralibs="${comp}_extralibs"
+        append current_extralibs $comp_extralibs
+    done
+    eval prepend ${linkunit}_extralibs $current_extralibs
+done
+
+for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
+    eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
+done
+
+map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
+
+for thread in $THREADS_LIST; do
+    if enabled $thread; then
+        test -n "$thread_type" &&
+            die "ERROR: Only one thread type must be selected." ||
+            thread_type="$thread"
+    fi
+done
+
+if disabled stdatomic; then
+    if enabled atomics_gcc; then
+        add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
+    elif enabled atomics_win32; then
+        add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
+    elif enabled atomics_suncc; then
+        add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
+    elif enabled pthreads; then
+        add_compat atomics/pthread/stdatomic.o
+        add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
+    else
+        enabled threads && die "Threading is enabled, but no atomics are available"
+        add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
+    fi
+fi
+
+# Check if requested libraries were found.
+for lib in $AUTODETECT_LIBS; do
+    requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
+done
+
+enabled zlib && add_cppflags -DZLIB_CONST
+
+# conditional library dependencies, in any order
+enabled afftdn_filter       && prepend avfilter_deps "avcodec"
+enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
+enabled afir_filter         && prepend avfilter_deps "avcodec"
+enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
+enabled aresample_filter    && prepend avfilter_deps "swresample"
+enabled atempo_filter       && prepend avfilter_deps "avcodec"
+enabled bm3d_filter         && prepend avfilter_deps "avcodec"
+enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
+enabled convolve_filter     && prepend avfilter_deps "avcodec"
+enabled deconvolve_filter   && prepend avfilter_deps "avcodec"
+enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
+enabled elbg_filter         && prepend avfilter_deps "avcodec"
+enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
+enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
+enabled firequalizer_filter && prepend avfilter_deps "avcodec"
+enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
+enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
+enabled pan_filter          && prepend avfilter_deps "swresample"
+enabled pp_filter           && prepend avfilter_deps "postproc"
+enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
+enabled resample_filter && prepend avfilter_deps "avresample"
+enabled sab_filter          && prepend avfilter_deps "swscale"
+enabled scale_filter    && prepend avfilter_deps "swscale"
+enabled scale2ref_filter    && prepend avfilter_deps "swscale"
+enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
+enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
+enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
+enabled showspectrum_filter && prepend avfilter_deps "avcodec"
+enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
+enabled smartblur_filter    && prepend avfilter_deps "swscale"
+enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
+enabled spp_filter          && prepend avfilter_deps "avcodec"
+enabled sr_filter           && prepend avfilter_deps "avformat swscale"
+enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
+enabled uspp_filter         && prepend avfilter_deps "avcodec"
+enabled zoompan_filter      && prepend avfilter_deps "swscale"
+
+enabled lavfi_indev         && prepend avdevice_deps "avfilter"
+
+#FIXME
+enabled_any sdl2_outdev opengl_outdev && enabled sdl2 &&
+    add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
+
+enabled opus_decoder    && prepend avcodec_deps "swresample"
+
+# reorder the items at var $1 to align with the items order at var $2 .
+# die if an item at $1 is not at $2 .
+reorder_by(){
+    eval rb_in=\$$1
+    eval rb_ordered=\$$2
+
+    for rb in $rb_in; do
+        is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
+    done
+
+    rb_out=
+    for rb in $rb_ordered; do
+        is_in $rb $rb_in && rb_out="$rb_out$rb "
+    done
+    eval $1=\$rb_out
+}
+
+# deps-expand fflib $1:  N x {append all expanded deps; unique}
+# within a set of N items, N expansions are enough to expose a cycle.
+expand_deps(){
+    unique ${1}_deps  # required for the early break test.
+    for dummy in $LIBRARY_LIST; do  # N iteratios
+        eval deps=\$${1}_deps
+        append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
+        unique ${1}_deps
+        eval '[ ${#deps} = ${#'${1}_deps'} ]' && break  # doesn't expand anymore
+    done
+
+    eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
+    reorder_by ${1}_deps LIBRARY_LIST  # linking order is expected later
+}
+
+#we have to remove gpl from the deps here as some code assumes all lib deps are libs
+postproc_deps="$(filter_out 'gpl' $postproc_deps)"
+
+map 'expand_deps $v' $LIBRARY_LIST
+
+if test "$quiet" != "yes"; then
+
+echo "install prefix            $prefix"
+echo "source path               $source_path"
+echo "C compiler                $cc"
+echo "C library                 $libc_type"
+if test "$host_cc" != "$cc"; then
+    echo "host C compiler           $host_cc"
+    echo "host C library            $host_libc_type"
+fi
+echo "ARCH                      $arch ($cpu)"
+if test "$build_suffix" != ""; then
+    echo "build suffix              $build_suffix"
+fi
+if test "$progs_suffix" != ""; then
+    echo "progs suffix              $progs_suffix"
+fi
+if test "$extra_version" != ""; then
+    echo "version string suffix     $extra_version"
+fi
+echo "big-endian                ${bigendian-no}"
+echo "runtime cpu detection     ${runtime_cpudetect-no}"
+if enabled x86; then
+    echo "standalone assembly       ${x86asm-no}"
+    echo "x86 assembler             ${x86asmexe}"
+    echo "MMX enabled               ${mmx-no}"
+    echo "MMXEXT enabled            ${mmxext-no}"
+    echo "3DNow! enabled            ${amd3dnow-no}"
+    echo "3DNow! extended enabled   ${amd3dnowext-no}"
+    echo "SSE enabled               ${sse-no}"
+    echo "SSSE3 enabled             ${ssse3-no}"
+    echo "AESNI enabled             ${aesni-no}"
+    echo "AVX enabled               ${avx-no}"
+    echo "AVX2 enabled              ${avx2-no}"
+    echo "AVX-512 enabled           ${avx512-no}"
+    echo "XOP enabled               ${xop-no}"
+    echo "FMA3 enabled              ${fma3-no}"
+    echo "FMA4 enabled              ${fma4-no}"
+    echo "i686 features enabled     ${i686-no}"
+    echo "CMOV is fast              ${fast_cmov-no}"
+    echo "EBX available             ${ebx_available-no}"
+    echo "EBP available             ${ebp_available-no}"
+fi
+if enabled aarch64; then
+    echo "NEON enabled              ${neon-no}"
+    echo "VFP enabled               ${vfp-no}"
+fi
+if enabled arm; then
+    echo "ARMv5TE enabled           ${armv5te-no}"
+    echo "ARMv6 enabled             ${armv6-no}"
+    echo "ARMv6T2 enabled           ${armv6t2-no}"
+    echo "VFP enabled               ${vfp-no}"
+    echo "NEON enabled              ${neon-no}"
+    echo "THUMB enabled             ${thumb-no}"
+fi
+if enabled mips; then
+    echo "MIPS FPU enabled          ${mipsfpu-no}"
+    echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
+    echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
+    echo "MIPS MSA enabled          ${msa-no}"
+    echo "MIPS MSA2 enabled         ${msa2-no}"
+    echo "LOONGSON MMI enabled      ${mmi-no}"
+fi
+if enabled ppc; then
+    echo "AltiVec enabled           ${altivec-no}"
+    echo "VSX enabled               ${vsx-no}"
+    echo "POWER8 enabled            ${power8-no}"
+    echo "PPC 4xx optimizations     ${ppc4xx-no}"
+    echo "dcbzl available           ${dcbzl-no}"
+fi
+echo "debug symbols             ${debug-no}"
+echo "strip symbols             ${stripping-no}"
+echo "optimize for size         ${small-no}"
+echo "optimizations             ${optimizations-no}"
+echo "static                    ${static-no}"
+echo "shared                    ${shared-no}"
+echo "postprocessing support    ${postproc-no}"
+echo "network support           ${network-no}"
+echo "threading support         ${thread_type-no}"
+echo "safe bitstream reader     ${safe_bitstream_reader-no}"
+echo "texi2html enabled         ${texi2html-no}"
+echo "perl enabled              ${perl-no}"
+echo "pod2man enabled           ${pod2man-no}"
+echo "makeinfo enabled          ${makeinfo-no}"
+echo "makeinfo supports HTML    ${makeinfo_html-no}"
+test -n "$random_seed" &&
+    echo "random seed               ${random_seed}"
+echo
+
+echo "External libraries:"
+print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
+echo
+
+echo "External libraries providing hardware acceleration:"
+print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
+echo
+
+echo "Libraries:"
+print_enabled '' $LIBRARY_LIST | print_in_columns
+echo
+
+echo "Programs:"
+print_enabled '' $PROGRAM_LIST | print_in_columns
+echo
+
+for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
+    echo "Enabled ${type}s:"
+    eval list=\$$(toupper $type)_LIST
+    print_enabled '_*' $list | print_in_columns
+    echo
+done
+
+if test -n "$ignore_tests"; then
+    ignore_tests=$(echo $ignore_tests | tr ',' ' ')
+    echo "Ignored FATE tests:"
+    echo $ignore_tests | print_in_columns
+    echo
+fi
+
+echo "License: $license"
+
+fi # test "$quiet" != "yes"
+
+if test -n "$WARN_IF_GETS_DISABLED_LIST"; then
+    for cfg in $WARN_IF_GETS_DISABLED_LIST; do
+        if disabled $cfg; then
+            varname=${cfg}_disable_reason
+            eval "warn \"Disabled $cfg because \$$varname\""
+        fi
+    done
+fi
+
+if test -n "$WARNINGS"; then
+    printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
+    enabled fatal_warnings && exit 1
+fi
+
+test -e Makefile || echo "include $source_path/Makefile" > Makefile
+
+esc(){
+    echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
+}
+
+echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
+
+enabled stripping || strip="echo skipping strip"
+enabled stripping || striptype=""
+
+config_files="$TMPH ffbuild/config.mak"
+
+cat > ffbuild/config.mak <<EOF
+# Automatically generated by configure - do not modify!
+ifndef FFMPEG_CONFIG_MAK
+FFMPEG_CONFIG_MAK=1
+FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
+prefix=$prefix
+LIBDIR=\$(DESTDIR)$libdir
+SHLIBDIR=\$(DESTDIR)$shlibdir
+INCDIR=\$(DESTDIR)$incdir
+BINDIR=\$(DESTDIR)$bindir
+DATADIR=\$(DESTDIR)$datadir
+DOCDIR=\$(DESTDIR)$docdir
+MANDIR=\$(DESTDIR)$mandir
+PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
+INSTALL_NAME_DIR=$install_name_dir
+SRC_PATH=$source_path
+SRC_LINK=$source_link
+ifndef MAIN_MAKEFILE
+SRC_PATH:=\$(SRC_PATH:.%=..%)
+endif
+CC_IDENT=$cc_ident
+ARCH=$arch
+INTRINSICS=$intrinsics
+EXTERN_PREFIX=$extern_prefix
+CC=$cc
+CXX=$cxx
+AS=$as
+OBJCC=$objcc
+LD=$ld
+DEPCC=$dep_cc
+DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
+DEPAS=$as
+DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
+X86ASM=$x86asmexe
+DEPX86ASM=$x86asmexe
+DEPX86ASMFLAGS=\$(X86ASMFLAGS)
+AR=$ar
+ARFLAGS=$arflags
+AR_O=$ar_o
+AR_CMD=$ar
+NM_CMD=$nm
+RANLIB=$ranlib
+STRIP=$strip
+STRIPTYPE=$striptype
+NVCC=$nvcc
+CP=cp -p
+LN_S=$ln_s
+CPPFLAGS=$CPPFLAGS
+CFLAGS=$CFLAGS
+CXXFLAGS=$CXXFLAGS
+OBJCFLAGS=$OBJCFLAGS
+ASFLAGS=$ASFLAGS
+NVCCFLAGS=$nvccflags
+AS_C=$AS_C
+AS_O=$AS_O
+OBJCC_C=$OBJCC_C
+OBJCC_E=$OBJCC_E
+OBJCC_O=$OBJCC_O
+CC_C=$CC_C
+CC_E=$CC_E
+CC_O=$CC_O
+CXX_C=$CXX_C
+CXX_O=$CXX_O
+NVCC_C=$NVCC_C
+NVCC_O=$NVCC_O
+LD_O=$LD_O
+X86ASM_O=$X86ASM_O
+LD_LIB=$LD_LIB
+LD_PATH=$LD_PATH
+DLLTOOL=$dlltool
+WINDRES=$windres
+DEPWINDRES=$dep_cc
+DOXYGEN=$doxygen
+LDFLAGS=$LDFLAGS
+LDEXEFLAGS=$LDEXEFLAGS
+LDSOFLAGS=$LDSOFLAGS
+SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
+ASMSTRIPFLAGS=$ASMSTRIPFLAGS
+X86ASMFLAGS=$X86ASMFLAGS
+BUILDSUF=$build_suffix
+PROGSSUF=$progs_suffix
+FULLNAME=$FULLNAME
+LIBPREF=$LIBPREF
+LIBSUF=$LIBSUF
+LIBNAME=$LIBNAME
+SLIBPREF=$SLIBPREF
+SLIBSUF=$SLIBSUF
+EXESUF=$EXESUF
+EXTRA_VERSION=$extra_version
+CCDEP=$CCDEP
+CXXDEP=$CXXDEP
+CCDEP_FLAGS=$CCDEP_FLAGS
+ASDEP=$ASDEP
+ASDEP_FLAGS=$ASDEP_FLAGS
+X86ASMDEP=$X86ASMDEP
+X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
+CC_DEPFLAGS=$CC_DEPFLAGS
+AS_DEPFLAGS=$AS_DEPFLAGS
+X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
+HOSTCC=$host_cc
+HOSTLD=$host_ld
+HOSTCFLAGS=$host_cflags
+HOSTCPPFLAGS=$host_cppflags
+HOSTEXESUF=$HOSTEXESUF
+HOSTLDFLAGS=$host_ldflags
+HOSTEXTRALIBS=$host_extralibs
+DEPHOSTCC=$host_cc
+DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
+HOSTCCDEP=$HOSTCCDEP
+HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
+HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
+HOSTCC_C=$HOSTCC_C
+HOSTCC_O=$HOSTCC_O
+HOSTLD_O=$HOSTLD_O
+TARGET_EXEC=$target_exec $target_exec_args
+TARGET_PATH=$target_path
+TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
+CFLAGS-ffplay=${sdl2_cflags}
+CFLAGS_HEADERS=$CFLAGS_HEADERS
+LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
+EXTRALIBS=$extralibs
+COMPAT_OBJS=$compat_objs
+INSTALL=$install
+LIBTARGET=${LIBTARGET}
+SLIBNAME=${SLIBNAME}
+SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
+SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
+SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
+SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
+SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
+SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
+SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
+SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
+VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
+SAMPLES:=${samples:-\$(FATE_SAMPLES)}
+NOREDZONE_FLAGS=$noredzone_flags
+LIBFUZZER_PATH=$libfuzzer_path
+IGNORE_TESTS=$ignore_tests
+EOF
+
+map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
+
+for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
+    eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
+done
+
+cat > $TMPH <<EOF
+/* Automatically generated by configure - do not modify! */
+#ifndef FFMPEG_CONFIG_H
+#define FFMPEG_CONFIG_H
+#define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
+#define FFMPEG_LICENSE "$(c_escape $license)"
+#define CONFIG_THIS_YEAR 2019
+#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
+#define AVCONV_DATADIR "$(eval c_escape $datadir)"
+#define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
+#define av_restrict $restrict_keyword
+#define EXTERN_PREFIX "${extern_prefix}"
+#define EXTERN_ASM ${extern_prefix}
+#define BUILDSUF "$build_suffix"
+#define SLIBSUF "$SLIBSUF"
+#define HAVE_MMX2 HAVE_MMXEXT
+#define SWS_MAX_FILTER_SIZE $sws_max_filter_size
+EOF
+
+test -n "$assert_level" &&
+    echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
+
+test -n "$malloc_prefix" &&
+    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
+
+if enabled x86asm; then
+    append config_files $TMPASM
+    cat > $TMPASM <<EOF
+; Automatically generated by configure - do not modify!
+EOF
+fi
+
+enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
+
+print_config ARCH_   "$config_files" $ARCH_LIST
+print_config HAVE_   "$config_files" $HAVE_LIST
+print_config CONFIG_ "$config_files" $CONFIG_LIST       \
+                                     $CONFIG_EXTRA      \
+                                     $ALL_COMPONENTS    \
+
+echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
+echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
+
+# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
+cp_if_changed $TMPH config.h
+touch ffbuild/.config
+
+enabled x86asm && cp_if_changed $TMPASM config.asm
+
+cat > $TMPH <<EOF
+/* Generated by ffmpeg configure */
+#ifndef AVUTIL_AVCONFIG_H
+#define AVUTIL_AVCONFIG_H
+EOF
+
+print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
+
+echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
+
+cp_if_changed $TMPH libavutil/avconfig.h
+
+# full_filter_name_foo=vf_foo
+# full_filter_name_bar=asrc_bar
+# ...
+eval "$(sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
+
+# generate the lists of enabled components
+print_enabled_components(){
+    file=$1
+    struct_name=$2
+    name=$3
+    shift 3
+    echo "static const $struct_name * const $name[] = {" > $TMPH
+    for c in $*; do
+        if enabled $c; then
+            case $name in
+                filter_list)
+                    eval c=\$full_filter_name_${c%_filter}
+                ;;
+                indev_list)
+                    c=${c%_indev}_demuxer
+                ;;
+                outdev_list)
+                    c=${c%_outdev}_muxer
+                ;;
+            esac
+            printf "    &ff_%s,\n" $c >> $TMPH
+        fi
+    done
+    if [ "$name" = "filter_list" ]; then
+        for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
+            printf "    &ff_%s,\n" $c >> $TMPH
+        done
+    fi
+    echo "    NULL };" >> $TMPH
+    cp_if_changed $TMPH $file
+}
+
+print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST
+print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
+print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
+print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
+print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
+print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
+print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
+print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
+print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
+
+# Settings for pkg-config files
+
+cat > $TMPH <<EOF
+# Automatically generated by configure - do not modify!
+shared=$shared
+build_suffix=$build_suffix
+prefix=$prefix
+libdir=$libdir
+incdir=$incdir
+rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
+source_path=${source_path}
+LIBPREF=${LIBPREF}
+LIBSUF=${LIBSUF}
+extralibs_avutil="$avutil_extralibs"
+extralibs_avcodec="$avcodec_extralibs"
+extralibs_avformat="$avformat_extralibs"
+extralibs_avdevice="$avdevice_extralibs"
+extralibs_avfilter="$avfilter_extralibs"
+extralibs_avresample="$avresample_extralibs"
+extralibs_postproc="$postproc_extralibs"
+extralibs_swscale="$swscale_extralibs"
+extralibs_swresample="$swresample_extralibs"
+EOF
+
+for lib in $LIBRARY_LIST; do
+    lib_deps="$(eval echo \$${lib}_deps)"
+    echo ${lib}_deps=\"$lib_deps\" >> $TMPH
+done
+
+cp_if_changed $TMPH ffbuild/config.sh
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/arch.mak b/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/arch.mak
new file mode 100644
index 000000000..e09006efc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/arch.mak
@@ -0,0 +1,17 @@
+OBJS-$(HAVE_ARMV5TE) += $(ARMV5TE-OBJS) $(ARMV5TE-OBJS-yes)
+OBJS-$(HAVE_ARMV6)   += $(ARMV6-OBJS)   $(ARMV6-OBJS-yes)
+OBJS-$(HAVE_ARMV8)   += $(ARMV8-OBJS)   $(ARMV8-OBJS-yes)
+OBJS-$(HAVE_VFP)     += $(VFP-OBJS)     $(VFP-OBJS-yes)
+OBJS-$(HAVE_NEON)    += $(NEON-OBJS)    $(NEON-OBJS-yes)
+
+OBJS-$(HAVE_MIPSFPU)   += $(MIPSFPU-OBJS)    $(MIPSFPU-OBJS-yes)
+OBJS-$(HAVE_MIPSDSP)   += $(MIPSDSP-OBJS)    $(MIPSDSP-OBJS-yes)
+OBJS-$(HAVE_MIPSDSPR2) += $(MIPSDSPR2-OBJS)  $(MIPSDSPR2-OBJS-yes)
+OBJS-$(HAVE_MSA)       += $(MSA-OBJS)        $(MSA-OBJS-yes)
+OBJS-$(HAVE_MMI)   += $(MMI-OBJS)   $(MMI-OBJS-yes)
+
+OBJS-$(HAVE_ALTIVEC) += $(ALTIVEC-OBJS) $(ALTIVEC-OBJS-yes)
+OBJS-$(HAVE_VSX)     += $(VSX-OBJS) $(VSX-OBJS-yes)
+
+OBJS-$(HAVE_MMX)     += $(MMX-OBJS)     $(MMX-OBJS-yes)
+OBJS-$(HAVE_X86ASM)  += $(X86ASM-OBJS)  $(X86ASM-OBJS-yes)
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/common.mak b/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/common.mak
new file mode 100644
index 000000000..7355508ea
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/common.mak
@@ -0,0 +1,175 @@
+#
+# common bits used by all libraries
+#
+
+DEFAULT_X86ASMD=.dbg
+
+ifeq ($(DBG),1)
+X86ASMD=$(DEFAULT_X86ASMD)
+else
+X86ASMD=
+endif
+
+ifndef SUBDIR
+
+ifndef V
+Q      = @
+ECHO   = printf "$(1)\t%s\n" $(2)
+BRIEF  = CC CXX OBJCC HOSTCC HOSTLD AS X86ASM AR LD STRIP CP WINDRES NVCC
+SILENT = DEPCC DEPHOSTCC DEPAS DEPX86ASM RANLIB RM
+
+MSG    = $@
+M      = @$(call ECHO,$(TAG),$@);
+$(foreach VAR,$(BRIEF), \
+    $(eval override $(VAR) = @$$(call ECHO,$(VAR),$$(MSG)); $($(VAR))))
+$(foreach VAR,$(SILENT),$(eval override $(VAR) = @$($(VAR))))
+$(eval INSTALL = @$(call ECHO,INSTALL,$$(^:$(SRC_DIR)/%=%)); $(INSTALL))
+endif
+
+ALLFFLIBS = avcodec avdevice avfilter avformat avresample avutil postproc swscale swresample
+
+# NASM requires -I path terminated with /
+IFLAGS     := -I. -I$(SRC_LINK)/
+CPPFLAGS   := $(IFLAGS) $(CPPFLAGS)
+CFLAGS     += $(ECFLAGS)
+CCFLAGS     = $(CPPFLAGS) $(CFLAGS)
+OBJCFLAGS  += $(EOBJCFLAGS)
+OBJCCFLAGS  = $(CPPFLAGS) $(CFLAGS) $(OBJCFLAGS)
+ASFLAGS    := $(CPPFLAGS) $(ASFLAGS)
+CXXFLAGS   := $(CPPFLAGS) $(CFLAGS) $(CXXFLAGS)
+X86ASMFLAGS += $(IFLAGS:%=%/) -I$(<D)/ -Pconfig.asm
+
+HOSTCCFLAGS = $(IFLAGS) $(HOSTCPPFLAGS) $(HOSTCFLAGS)
+LDFLAGS    := $(ALLFFLIBS:%=$(LD_PATH)lib%) $(LDFLAGS)
+
+define COMPILE
+       $(call $(1)DEP,$(1))
+       $($(1)) $($(1)FLAGS) $($(1)_DEPFLAGS) $($(1)_C) $($(1)_O) $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<)
+endef
+
+COMPILE_C = $(call COMPILE,CC)
+COMPILE_CXX = $(call COMPILE,CXX)
+COMPILE_S = $(call COMPILE,AS)
+COMPILE_M = $(call COMPILE,OBJCC)
+COMPILE_X86ASM = $(call COMPILE,X86ASM)
+COMPILE_HOSTC = $(call COMPILE,HOSTCC)
+COMPILE_NVCC = $(call COMPILE,NVCC)
+
+%.o: %.c
+	$(COMPILE_C)
+
+%.o: %.cpp
+	$(COMPILE_CXX)
+
+%.o: %.m
+	$(COMPILE_M)
+
+%.s: %.c
+	$(CC) $(CCFLAGS) -S -o $@ $<
+
+%.o: %.S
+	$(COMPILE_S)
+
+%_host.o: %.c
+	$(COMPILE_HOSTC)
+
+%$(DEFAULT_X86ASMD).asm: %.asm
+	$(DEPX86ASM) $(X86ASMFLAGS) -M -o $@ $< > $(@:.asm=.d)
+	$(X86ASM) $(X86ASMFLAGS) -e $< | sed '/^%/d;/^$$/d;' > $@
+
+%.o: %.asm
+	$(COMPILE_X86ASM)
+	-$(if $(ASMSTRIPFLAGS), $(STRIP) $(ASMSTRIPFLAGS) $@)
+
+%.o: %.rc
+	$(WINDRES) $(IFLAGS) --preprocessor "$(DEPWINDRES) -E -xc-header -DRC_INVOKED $(CC_DEPFLAGS)" -o $@ $<
+
+%.i: %.c
+	$(CC) $(CCFLAGS) $(CC_E) $<
+
+%.h.c:
+	$(Q)echo '#include "$*.h"' >$@
+
+%.ptx: %.cu $(SRC_PATH)/compat/cuda/cuda_runtime.h
+	$(COMPILE_NVCC)
+
+%.ptx.c: %.ptx
+	$(Q)sh $(SRC_PATH)/compat/cuda/ptx2c.sh $@ $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<)
+
+%.c %.h %.pc %.ver %.version: TAG = GEN
+
+# Dummy rule to stop make trying to rebuild removed or renamed headers
+%.h:
+	@:
+
+# Disable suffix rules.  Most of the builtin rules are suffix rules,
+# so this saves some time on slow systems.
+.SUFFIXES:
+
+# Do not delete intermediate files from chains of implicit rules
+$(OBJS):
+endif
+
+include $(SRC_PATH)/ffbuild/arch.mak
+
+OBJS      += $(OBJS-yes)
+SLIBOBJS  += $(SLIBOBJS-yes)
+FFLIBS    := $($(NAME)_FFLIBS) $(FFLIBS-yes) $(FFLIBS)
+TESTPROGS += $(TESTPROGS-yes)
+
+LDLIBS       = $(FFLIBS:%=%$(BUILDSUF))
+FFEXTRALIBS := $(LDLIBS:%=$(LD_LIB)) $(foreach lib,EXTRALIBS-$(NAME) $(FFLIBS:%=EXTRALIBS-%),$($(lib))) $(EXTRALIBS)
+
+OBJS      := $(sort $(OBJS:%=$(SUBDIR)%))
+SLIBOBJS  := $(sort $(SLIBOBJS:%=$(SUBDIR)%))
+TESTOBJS  := $(TESTOBJS:%=$(SUBDIR)tests/%) $(TESTPROGS:%=$(SUBDIR)tests/%.o)
+TESTPROGS := $(TESTPROGS:%=$(SUBDIR)tests/%$(EXESUF))
+HOSTOBJS  := $(HOSTPROGS:%=$(SUBDIR)%.o)
+HOSTPROGS := $(HOSTPROGS:%=$(SUBDIR)%$(HOSTEXESUF))
+TOOLS     += $(TOOLS-yes)
+TOOLOBJS  := $(TOOLS:%=tools/%.o)
+TOOLS     := $(TOOLS:%=tools/%$(EXESUF))
+HEADERS   += $(HEADERS-yes)
+
+PATH_LIBNAME = $(foreach NAME,$(1),lib$(NAME)/$($(2)LIBNAME))
+DEP_LIBS := $(foreach lib,$(FFLIBS),$(call PATH_LIBNAME,$(lib),$(CONFIG_SHARED:yes=S)))
+STATIC_DEP_LIBS := $(foreach lib,$(FFLIBS),$(call PATH_LIBNAME,$(lib)))
+
+SRC_DIR    := $(SRC_PATH)/lib$(NAME)
+ALLHEADERS := $(subst $(SRC_DIR)/,$(SUBDIR),$(wildcard $(SRC_DIR)/*.h $(SRC_DIR)/$(ARCH)/*.h))
+SKIPHEADERS += $(ARCH_HEADERS:%=$(ARCH)/%) $(SKIPHEADERS-)
+SKIPHEADERS := $(SKIPHEADERS:%=$(SUBDIR)%)
+HOBJS        = $(filter-out $(SKIPHEADERS:.h=.h.o),$(ALLHEADERS:.h=.h.o))
+PTXOBJS      = $(filter %.ptx.o,$(OBJS))
+$(HOBJS):     CCFLAGS += $(CFLAGS_HEADERS)
+checkheaders: $(HOBJS)
+.SECONDARY:   $(HOBJS:.o=.c) $(PTXOBJS:.o=.c) $(PTXOBJS:.o=)
+
+alltools: $(TOOLS)
+
+$(HOSTOBJS): %.o: %.c
+	$(COMPILE_HOSTC)
+
+$(HOSTPROGS): %$(HOSTEXESUF): %.o
+	$(HOSTLD) $(HOSTLDFLAGS) $(HOSTLD_O) $^ $(HOSTEXTRALIBS)
+
+$(OBJS):     | $(sort $(dir $(OBJS)))
+$(HOBJS):    | $(sort $(dir $(HOBJS)))
+$(HOSTOBJS): | $(sort $(dir $(HOSTOBJS)))
+$(SLIBOBJS): | $(sort $(dir $(SLIBOBJS)))
+$(TESTOBJS): | $(sort $(dir $(TESTOBJS)))
+$(TOOLOBJS): | tools
+
+OUTDIRS := $(OUTDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(SLIBOBJS) $(TESTOBJS))
+
+CLEANSUFFIXES     = *.d *.gcda *.gcno *.h.c *.ho *.map *.o *.pc *.ptx *.ptx.c *.ver *.version *$(DEFAULT_X86ASMD).asm *~
+LIBSUFFIXES       = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a
+
+define RULES
+clean::
+	$(RM) $(HOSTPROGS) $(TESTPROGS) $(TOOLS)
+endef
+
+$(eval $(RULES))
+
+-include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d) $(SLIBOBJS:.o=.d)) $(OBJS:.o=$(DEFAULT_X86ASMD).d)
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/library.mak b/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/library.mak
new file mode 100644
index 000000000..612bacb98
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/library.mak
@@ -0,0 +1,107 @@
+include $(SRC_PATH)/ffbuild/common.mak
+
+ifeq (,$(filter %clean config,$(MAKECMDGOALS)))
+-include $(SUBDIR)lib$(NAME).version
+endif
+
+LIBVERSION := $(lib$(NAME)_VERSION)
+LIBMAJOR   := $(lib$(NAME)_VERSION_MAJOR)
+LIBMINOR   := $(lib$(NAME)_VERSION_MINOR)
+INCINSTDIR := $(INCDIR)/lib$(NAME)
+
+INSTHEADERS := $(INSTHEADERS) $(HEADERS:%=$(SUBDIR)%)
+
+all-$(CONFIG_STATIC): $(SUBDIR)$(LIBNAME)  $(SUBDIR)lib$(FULLNAME).pc
+all-$(CONFIG_SHARED): $(SUBDIR)$(SLIBNAME) $(SUBDIR)lib$(FULLNAME).pc
+
+LIBOBJS := $(OBJS) $(SUBDIR)%.h.o $(TESTOBJS)
+$(LIBOBJS) $(LIBOBJS:.o=.s) $(LIBOBJS:.o=.i):   CPPFLAGS += -DHAVE_AV_CONFIG_H
+
+$(SUBDIR)$(LIBNAME): $(OBJS)
+	$(RM) $@
+	$(AR) $(ARFLAGS) $(AR_O) $^
+	$(RANLIB) $@
+
+install-headers: install-lib$(NAME)-headers install-lib$(NAME)-pkgconfig
+
+install-libs-$(CONFIG_STATIC): install-lib$(NAME)-static
+install-libs-$(CONFIG_SHARED): install-lib$(NAME)-shared
+
+define RULES
+$(TOOLS):     THISLIB = $(FULLNAME:%=$(LD_LIB))
+$(TESTPROGS): THISLIB = $(SUBDIR)$(LIBNAME)
+
+$(LIBOBJS): CPPFLAGS += -DBUILDING_$(NAME)
+
+$(TESTPROGS) $(TOOLS): %$(EXESUF): %.o
+	$$(LD) $(LDFLAGS) $(LDEXEFLAGS) $$(LD_O) $$(filter %.o,$$^) $$(THISLIB) $(FFEXTRALIBS) $$(EXTRALIBS-$$(*F)) $$(ELIBS)
+
+$(SUBDIR)lib$(NAME).version: $(SUBDIR)version.h | $(SUBDIR)
+	$$(M) $$(SRC_PATH)/ffbuild/libversion.sh $(NAME) $$< > $$@
+
+$(SUBDIR)lib$(FULLNAME).pc: $(SUBDIR)version.h ffbuild/config.sh | $(SUBDIR)
+	$$(M) $$(SRC_PATH)/ffbuild/pkgconfig_generate.sh $(NAME) "$(DESC)"
+
+$(SUBDIR)lib$(NAME).ver: $(SUBDIR)lib$(NAME).v $(OBJS)
+	$$(M)sed 's/MAJOR/$(lib$(NAME)_VERSION_MAJOR)/' $$< | $(VERSION_SCRIPT_POSTPROCESS_CMD) > $$@
+
+$(SUBDIR)$(SLIBNAME): $(SUBDIR)$(SLIBNAME_WITH_MAJOR)
+	$(Q)cd ./$(SUBDIR) && $(LN_S) $(SLIBNAME_WITH_MAJOR) $(SLIBNAME)
+
+$(SUBDIR)$(SLIBNAME_WITH_MAJOR): $(OBJS) $(SLIBOBJS) $(SUBDIR)lib$(NAME).ver
+	$(SLIB_CREATE_DEF_CMD)
+	$$(LD) $(SHFLAGS) $(LDFLAGS) $(LDSOFLAGS) $$(LD_O) $$(filter %.o,$$^) $(FFEXTRALIBS)
+	$(SLIB_EXTRA_CMD)
+
+ifdef SUBDIR
+$(SUBDIR)$(SLIBNAME_WITH_MAJOR): $(DEP_LIBS)
+endif
+
+clean::
+	$(RM) $(addprefix $(SUBDIR),$(CLEANFILES) $(CLEANSUFFIXES) $(LIBSUFFIXES)) \
+	    $(CLEANSUFFIXES:%=$(SUBDIR)$(ARCH)/%) $(CLEANSUFFIXES:%=$(SUBDIR)tests/%)
+
+install-lib$(NAME)-shared: $(SUBDIR)$(SLIBNAME)
+	$(Q)mkdir -p "$(SHLIBDIR)"
+	$$(INSTALL) -m 755 $$< "$(SHLIBDIR)/$(SLIB_INSTALL_NAME)"
+	$$(STRIP) "$(SHLIBDIR)/$(SLIB_INSTALL_NAME)"
+	$(Q)$(foreach F,$(SLIB_INSTALL_LINKS),(cd "$(SHLIBDIR)" && $(LN_S) $(SLIB_INSTALL_NAME) $(F));)
+	$(if $(SLIB_INSTALL_EXTRA_SHLIB),$$(INSTALL) -m 644 $(SLIB_INSTALL_EXTRA_SHLIB:%=$(SUBDIR)%) "$(SHLIBDIR)")
+	$(if $(SLIB_INSTALL_EXTRA_LIB),$(Q)mkdir -p "$(LIBDIR)")
+	$(if $(SLIB_INSTALL_EXTRA_LIB),$$(INSTALL) -m 644 $(SLIB_INSTALL_EXTRA_LIB:%=$(SUBDIR)%) "$(LIBDIR)")
+
+install-lib$(NAME)-static: $(SUBDIR)$(LIBNAME)
+	$(Q)mkdir -p "$(LIBDIR)"
+	$$(INSTALL) -m 644 $$< "$(LIBDIR)"
+	$(LIB_INSTALL_EXTRA_CMD)
+
+install-lib$(NAME)-headers: $(addprefix $(SUBDIR),$(HEADERS) $(BUILT_HEADERS))
+	$(Q)mkdir -p "$(INCINSTDIR)"
+	$$(INSTALL) -m 644 $$^ "$(INCINSTDIR)"
+
+install-lib$(NAME)-pkgconfig: $(SUBDIR)lib$(FULLNAME).pc
+	$(Q)mkdir -p "$(PKGCONFIGDIR)"
+	$$(INSTALL) -m 644 $$^ "$(PKGCONFIGDIR)"
+
+uninstall-libs::
+	-$(RM) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR)" \
+	       "$(SHLIBDIR)/$(SLIBNAME)"            \
+	       "$(SHLIBDIR)/$(SLIBNAME_WITH_VERSION)"
+	-$(RM)  $(SLIB_INSTALL_EXTRA_SHLIB:%="$(SHLIBDIR)/%")
+	-$(RM)  $(SLIB_INSTALL_EXTRA_LIB:%="$(LIBDIR)/%")
+	-$(RM) "$(LIBDIR)/$(LIBNAME)"
+
+uninstall-headers::
+	$(RM) $(addprefix "$(INCINSTDIR)/",$(HEADERS) $(BUILT_HEADERS))
+	-rmdir "$(INCINSTDIR)"
+
+uninstall-pkgconfig::
+	$(RM) "$(PKGCONFIGDIR)/lib$(FULLNAME).pc"
+endef
+
+$(eval $(RULES))
+
+$(TOOLS):     $(DEP_LIBS) $(SUBDIR)$($(CONFIG_SHARED:yes=S)LIBNAME)
+$(TESTPROGS): $(DEP_LIBS) $(SUBDIR)$(LIBNAME)
+
+testprogs: $(TESTPROGS)
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/libversion.sh b/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/libversion.sh
new file mode 100755
index 000000000..990ce9f64
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/libversion.sh
@@ -0,0 +1,13 @@
+toupper(){
+    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
+}
+
+name=lib$1
+ucname=$(toupper ${name})
+file=$2
+
+eval $(awk "/#define ${ucname}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
+eval ${ucname}_VERSION=\$${ucname}_VERSION_MAJOR.\$${ucname}_VERSION_MINOR.\$${ucname}_VERSION_MICRO
+eval echo "${name}_VERSION=\$${ucname}_VERSION"
+eval echo "${name}_VERSION_MAJOR=\$${ucname}_VERSION_MAJOR"
+eval echo "${name}_VERSION_MINOR=\$${ucname}_VERSION_MINOR"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/pkgconfig_generate.sh b/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/pkgconfig_generate.sh
new file mode 100755
index 000000000..e5de6716d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/pkgconfig_generate.sh
@@ -0,0 +1,62 @@
+#!/bin/sh
+
+. ffbuild/config.sh
+
+if test "$shared" = "yes"; then
+    shared=true
+else
+    shared=false
+fi
+
+shortname=$1
+name=lib${shortname}
+fullname=${name}${build_suffix}
+comment=$2
+libs=$(eval echo \$extralibs_${shortname})
+deps=$(eval echo \$${shortname}_deps)
+
+for dep in $deps; do
+    depname=lib${dep}
+    fulldepname=${depname}${build_suffix}
+    . ${depname}/${depname}.version
+    depversion=$(eval echo \$${depname}_VERSION)
+    requires="$requires ${fulldepname} >= ${depversion}, "
+done
+requires=${requires%, }
+
+version=$(grep ${name}_VERSION= $name/${name}.version | cut -d= -f2)
+
+cat <<EOF > $name/$fullname.pc
+prefix=$prefix
+exec_prefix=\${prefix}
+libdir=$libdir
+includedir=$incdir
+
+Name: $fullname
+Description: $comment
+Version: $version
+Requires: $($shared || echo $requires)
+Requires.private: $($shared && echo $requires)
+Conflicts:
+Libs: -L\${libdir} $rpath -l${fullname#lib} $($shared || echo $libs)
+Libs.private: $($shared && echo $libs)
+Cflags: -I\${includedir}
+EOF
+
+mkdir -p doc/examples/pc-uninstalled
+includedir=${source_path}
+[ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
+    cat <<EOF > doc/examples/pc-uninstalled/${name}-uninstalled.pc
+prefix=
+exec_prefix=
+libdir=\${pcfiledir}/../../../$name
+includedir=${source_path}
+
+Name: $fullname
+Description: $comment
+Version: $version
+Requires: $requires
+Conflicts:
+Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${fullname#lib} $($shared || echo $libs)
+Cflags: -I\${includedir}
+EOF
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/version.sh b/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/version.sh
new file mode 100755
index 000000000..edc4dd33c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/ffbuild/version.sh
@@ -0,0 +1,63 @@
+#!/bin/sh
+
+# Usage: version.sh <ffmpeg-root-dir> <output-version.h> <extra-version>
+
+# check for git short hash
+if ! test "$revision"; then
+    if (cd "$1" && grep git RELEASE 2> /dev/null >/dev/null) ; then
+        revision=$(cd "$1" && git describe --tags --match N 2> /dev/null)
+    else
+        revision=$(cd "$1" && git describe --tags --always 2> /dev/null)
+    fi
+fi
+
+# Shallow Git clones (--depth) do not have the N tag:
+# use 'git-YYYY-MM-DD-hhhhhhh'.
+test "$revision" || revision=$(cd "$1" &&
+  git log -1 --pretty=format:"git-%cd-%h" --date=short 2> /dev/null)
+
+# Snapshots from gitweb are in a directory called ffmpeg-hhhhhhh or
+# ffmpeg-HEAD-hhhhhhh.
+if [ -z "$revision" ]; then
+  srcdir=$(cd "$1" && pwd)
+  case "$srcdir" in
+    */ffmpeg-[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f])
+      git_hash="${srcdir##*-}";;
+    */ffmpeg-HEAD-[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f])
+      git_hash="${srcdir##*-}";;
+  esac
+fi
+
+# no revision number found
+test "$revision" || revision=$(cd "$1" && cat RELEASE 2> /dev/null)
+
+# Append the Git hash if we have one
+test "$revision" && test "$git_hash" && revision="$revision-$git_hash"
+
+# releases extract the version number from the VERSION file
+version=$(cd "$1" && cat VERSION 2> /dev/null)
+test "$version" || version=$revision
+
+test -n "$3" && version=$version-$3
+
+if [ -z "$2" ]; then
+    echo "$version"
+    exit
+fi
+
+NEW_REVISION="#define FFMPEG_VERSION \"$version\""
+OLD_REVISION=$(cat "$2" 2> /dev/null | head -4 | tail -1)
+
+# String used for preprocessor guard
+GUARD=$(echo "$2" | sed 's/\//_/' | sed 's/\./_/' | tr '[:lower:]' '[:upper:]' | sed 's/LIB//')
+
+# Update version header only on revision changes to avoid spurious rebuilds
+if test "$NEW_REVISION" != "$OLD_REVISION"; then
+    cat << EOF > "$2"
+/* Automatically generated by version.sh, do not manually edit! */
+#ifndef $GUARD
+#define $GUARD
+$NEW_REVISION
+#endif /* $GUARD */
+EOF
+fi
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/Makefile b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/Makefile
new file mode 100644
index 000000000..3cd73fbcc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/Makefile
@@ -0,0 +1,1225 @@
+NAME = avcodec
+DESC = FFmpeg codec library
+
+HEADERS = ac3_parser.h                                                  \
+          adts_parser.h                                                 \
+          avcodec.h                                                     \
+          avdct.h                                                       \
+          avfft.h                                                       \
+          d3d11va.h                                                     \
+          dirac.h                                                       \
+          dv_profile.h                                                  \
+          dxva2.h                                                       \
+          jni.h                                                         \
+          mediacodec.h                                                  \
+          qsv.h                                                         \
+          vaapi.h                                                       \
+          vdpau.h                                                       \
+          version.h                                                     \
+          videotoolbox.h                                                \
+          vorbis_parser.h                                               \
+          xvmc.h                                                        \
+
+OBJS = ac3_parser.o                                                     \
+       adts_parser.o                                                    \
+       allcodecs.o                                                      \
+       avdct.o                                                          \
+       avpacket.o                                                       \
+       avpicture.o                                                      \
+       bitstream.o                                                      \
+       bitstream_filter.o                                               \
+       bitstream_filters.o                                              \
+       bsf.o                                                            \
+       codec_desc.o                                                     \
+       d3d11va.o                                                        \
+       decode.o                                                         \
+       dirac.o                                                          \
+       dv_profile.o                                                     \
+       encode.o                                                         \
+       imgconvert.o                                                     \
+       jni.o                                                            \
+       mathtables.o                                                     \
+       mediacodec.o                                                     \
+       mpeg12framerate.o                                                \
+       options.o                                                        \
+       mjpegenc_huffman.o                                               \
+       parser.o                                                         \
+       parsers.o                                                        \
+       profiles.o                                                       \
+       qsv_api.o                                                        \
+       raw.o                                                            \
+       utils.o                                                          \
+       vorbis_parser.o                                                  \
+       xiph.o                                                           \
+
+# subsystems
+OBJS-$(CONFIG_AANDCTTABLES)            += aandcttab.o
+OBJS-$(CONFIG_AC3DSP)                  += ac3dsp.o ac3.o ac3tab.o
+OBJS-$(CONFIG_ADTS_HEADER)             += adts_header.o mpeg4audio.o
+OBJS-$(CONFIG_AMF)                     += amfenc.o
+OBJS-$(CONFIG_AUDIO_FRAME_QUEUE)       += audio_frame_queue.o
+OBJS-$(CONFIG_AUDIODSP)                += audiodsp.o
+OBJS-$(CONFIG_BLOCKDSP)                += blockdsp.o
+OBJS-$(CONFIG_BSWAPDSP)                += bswapdsp.o
+OBJS-$(CONFIG_CABAC)                   += cabac.o
+OBJS-$(CONFIG_CBS)                     += cbs.o
+OBJS-$(CONFIG_CBS_AV1)                 += cbs_av1.o
+OBJS-$(CONFIG_CBS_H264)                += cbs_h2645.o h2645_parse.o
+OBJS-$(CONFIG_CBS_H265)                += cbs_h2645.o h2645_parse.o
+OBJS-$(CONFIG_CBS_JPEG)                += cbs_jpeg.o
+OBJS-$(CONFIG_CBS_MPEG2)               += cbs_mpeg2.o
+OBJS-$(CONFIG_CBS_VP9)                 += cbs_vp9.o
+OBJS-$(CONFIG_CRYSTALHD)               += crystalhd.o
+OBJS-$(CONFIG_DCT)                     += dct.o dct32_fixed.o dct32_float.o
+OBJS-$(CONFIG_ERROR_RESILIENCE)        += error_resilience.o
+OBJS-$(CONFIG_EXIF)                    += exif.o tiff_common.o
+OBJS-$(CONFIG_FAANDCT)                 += faandct.o
+OBJS-$(CONFIG_FAANIDCT)                += faanidct.o
+OBJS-$(CONFIG_FDCTDSP)                 += fdctdsp.o jfdctfst.o jfdctint.o
+FFT-OBJS-$(CONFIG_HARDCODED_TABLES)    += cos_tables.o cos_fixed_tables.o
+OBJS-$(CONFIG_FFT)                     += avfft.o fft_fixed.o fft_float.o \
+                                          fft_fixed_32.o fft_init_table.o \
+                                          $(FFT-OBJS-yes)
+OBJS-$(CONFIG_FLACDSP)                 += flacdsp.o
+OBJS-$(CONFIG_FMTCONVERT)              += fmtconvert.o
+OBJS-$(CONFIG_GOLOMB)                  += golomb.o
+OBJS-$(CONFIG_H263DSP)                 += h263dsp.o
+OBJS-$(CONFIG_H264CHROMA)              += h264chroma.o
+OBJS-$(CONFIG_H264DSP)                 += h264dsp.o h264idct.o
+OBJS-$(CONFIG_H264PARSE)               += h264_parse.o h2645_parse.o h264_ps.o
+OBJS-$(CONFIG_H264PRED)                += h264pred.o
+OBJS-$(CONFIG_H264QPEL)                += h264qpel.o
+OBJS-$(CONFIG_HEVCPARSE)               += hevc_parse.o h2645_parse.o hevc_ps.o hevc_sei.o hevc_data.o
+OBJS-$(CONFIG_HPELDSP)                 += hpeldsp.o
+OBJS-$(CONFIG_HUFFMAN)                 += huffman.o
+OBJS-$(CONFIG_HUFFYUVDSP)              += huffyuvdsp.o
+OBJS-$(CONFIG_HUFFYUVENCDSP)           += huffyuvencdsp.o
+OBJS-$(CONFIG_IDCTDSP)                 += idctdsp.o simple_idct.o jrevdct.o
+OBJS-$(CONFIG_IIRFILTER)               += iirfilter.o
+OBJS-$(CONFIG_MDCT15)                  += mdct15.o
+OBJS-$(CONFIG_INTRAX8)                 += intrax8.o intrax8dsp.o msmpeg4data.o
+OBJS-$(CONFIG_IVIDSP)                  += ivi_dsp.o
+OBJS-$(CONFIG_JNI)                     += ffjni.o jni.o
+OBJS-$(CONFIG_JPEGTABLES)              += jpegtables.o
+OBJS-$(CONFIG_LLAUDDSP)                += lossless_audiodsp.o
+OBJS-$(CONFIG_LLVIDDSP)                += lossless_videodsp.o
+OBJS-$(CONFIG_LLVIDENCDSP)             += lossless_videoencdsp.o
+OBJS-$(CONFIG_LPC)                     += lpc.o
+OBJS-$(CONFIG_LSP)                     += lsp.o
+OBJS-$(CONFIG_LZF)                     += lzf.o
+OBJS-$(CONFIG_MDCT)                    += mdct_fixed.o mdct_float.o mdct_fixed_32.o
+OBJS-$(CONFIG_ME_CMP)                  += me_cmp.o
+OBJS-$(CONFIG_MEDIACODEC)              += mediacodecdec_common.o mediacodec_surface.o mediacodec_wrapper.o mediacodec_sw_buffer.o
+OBJS-$(CONFIG_MPEG_ER)                 += mpeg_er.o
+OBJS-$(CONFIG_MPEGAUDIO)               += mpegaudio.o
+OBJS-$(CONFIG_MPEGAUDIODSP)            += mpegaudiodsp.o                \
+                                          mpegaudiodsp_data.o           \
+                                          mpegaudiodsp_fixed.o          \
+                                          mpegaudiodsp_float.o
+OBJS-$(CONFIG_MPEGAUDIOHEADER)         += mpegaudiodecheader.o mpegaudiodata.o
+OBJS-$(CONFIG_MPEGVIDEO)               += mpegvideo.o mpegvideodsp.o rl.o \
+                                          mpegvideo_motion.o mpegutils.o \
+                                          mpegvideodata.o mpegpicture.o
+OBJS-$(CONFIG_MPEGVIDEOENC)            += mpegvideo_enc.o mpeg12data.o  \
+                                          motion_est.o ratecontrol.o    \
+                                          mpegvideoencdsp.o
+OBJS-$(CONFIG_MSS34DSP)                += mss34dsp.o
+OBJS-$(CONFIG_NVENC)                   += nvenc.o
+OBJS-$(CONFIG_PIXBLOCKDSP)             += pixblockdsp.o
+OBJS-$(CONFIG_QPELDSP)                 += qpeldsp.o
+OBJS-$(CONFIG_QSV)                     += qsv.o
+OBJS-$(CONFIG_QSVDEC)                  += qsvdec.o
+OBJS-$(CONFIG_QSVENC)                  += qsvenc.o
+OBJS-$(CONFIG_RANGECODER)              += rangecoder.o
+OBJS-$(CONFIG_RDFT)                    += rdft.o
+OBJS-$(CONFIG_RV34DSP)                 += rv34dsp.o
+OBJS-$(CONFIG_SHARED)                  += log2_tab.o reverse.o
+OBJS-$(CONFIG_SINEWIN)                 += sinewin.o sinewin_fixed.o
+OBJS-$(CONFIG_SNAPPY)                  += snappy.o
+OBJS-$(CONFIG_STARTCODE)               += startcode.o
+OBJS-$(CONFIG_TEXTUREDSP)              += texturedsp.o
+OBJS-$(CONFIG_TEXTUREDSPENC)           += texturedspenc.o
+OBJS-$(CONFIG_TPELDSP)                 += tpeldsp.o
+OBJS-$(CONFIG_VAAPI_ENCODE)            += vaapi_encode.o
+OBJS-$(CONFIG_VC1DSP)                  += vc1dsp.o
+OBJS-$(CONFIG_VIDEODSP)                += videodsp.o
+OBJS-$(CONFIG_VP3DSP)                  += vp3dsp.o
+OBJS-$(CONFIG_VP56DSP)                 += vp56dsp.o
+OBJS-$(CONFIG_VP8DSP)                  += vp8dsp.o
+OBJS-$(CONFIG_V4L2_M2M)                += v4l2_m2m.o v4l2_context.o v4l2_buffers.o v4l2_fmt.o
+OBJS-$(CONFIG_WMA_FREQS)               += wma_freqs.o
+OBJS-$(CONFIG_WMV2DSP)                 += wmv2dsp.o
+
+# decoders/encoders
+OBJS-$(CONFIG_ZERO12V_DECODER)         += 012v.o
+OBJS-$(CONFIG_A64MULTI_ENCODER)        += a64multienc.o elbg.o
+OBJS-$(CONFIG_A64MULTI5_ENCODER)       += a64multienc.o elbg.o
+OBJS-$(CONFIG_AAC_DECODER)             += aacdec.o aactab.o aacsbr.o aacps_float.o \
+                                          mpeg4audio.o kbdwin.o \
+                                          sbrdsp.o aacpsdsp_float.o cbrt_data.o
+OBJS-$(CONFIG_AAC_FIXED_DECODER)       += aacdec_fixed.o aactab.o aacsbr_fixed.o aacps_fixed.o \
+                                          mpeg4audio.o kbdwin.o \
+                                          sbrdsp_fixed.o aacpsdsp_fixed.o cbrt_data_fixed.o
+OBJS-$(CONFIG_AAC_ENCODER)             += aacenc.o aaccoder.o aacenctab.o    \
+                                          aacpsy.o aactab.o      \
+                                          aacenc_is.o \
+                                          aacenc_tns.o \
+                                          aacenc_ltp.o \
+                                          aacenc_pred.o \
+                                          psymodel.o mpeg4audio.o kbdwin.o cbrt_data.o
+OBJS-$(CONFIG_AASC_DECODER)            += aasc.o msrledec.o
+OBJS-$(CONFIG_AC3_DECODER)             += ac3dec_float.o ac3dec_data.o ac3.o kbdwin.o ac3tab.o
+OBJS-$(CONFIG_AC3_FIXED_DECODER)       += ac3dec_fixed.o ac3dec_data.o ac3.o kbdwin.o ac3tab.o
+OBJS-$(CONFIG_AC3_ENCODER)             += ac3enc_float.o ac3enc.o ac3tab.o \
+                                          ac3.o kbdwin.o
+OBJS-$(CONFIG_AC3_FIXED_ENCODER)       += ac3enc_fixed.o ac3enc.o ac3tab.o ac3.o
+OBJS-$(CONFIG_AGM_DECODER)             += agm.o
+OBJS-$(CONFIG_AIC_DECODER)             += aic.o
+OBJS-$(CONFIG_ALAC_DECODER)            += alac.o alac_data.o alacdsp.o
+OBJS-$(CONFIG_ALAC_ENCODER)            += alacenc.o alac_data.o
+OBJS-$(CONFIG_ALIAS_PIX_DECODER)       += aliaspixdec.o
+OBJS-$(CONFIG_ALIAS_PIX_ENCODER)       += aliaspixenc.o
+OBJS-$(CONFIG_ALS_DECODER)             += alsdec.o bgmc.o mlz.o mpeg4audio.o
+OBJS-$(CONFIG_AMRNB_DECODER)           += amrnbdec.o celp_filters.o   \
+                                          celp_math.o acelp_filters.o \
+                                          acelp_vectors.o             \
+                                          acelp_pitch_delay.o
+OBJS-$(CONFIG_AMRWB_DECODER)           += amrwbdec.o celp_filters.o   \
+                                          celp_math.o acelp_filters.o \
+                                          acelp_vectors.o             \
+                                          acelp_pitch_delay.o
+OBJS-$(CONFIG_AMV_ENCODER)             += mjpegenc.o mjpegenc_common.o \
+                                          mjpegenc_huffman.o
+OBJS-$(CONFIG_ANM_DECODER)             += anm.o
+OBJS-$(CONFIG_ANSI_DECODER)            += ansi.o cga_data.o
+OBJS-$(CONFIG_APE_DECODER)             += apedec.o
+OBJS-$(CONFIG_APTX_DECODER)            += aptx.o
+OBJS-$(CONFIG_APTX_ENCODER)            += aptx.o
+OBJS-$(CONFIG_APTX_HD_DECODER)         += aptx.o
+OBJS-$(CONFIG_APTX_HD_ENCODER)         += aptx.o
+OBJS-$(CONFIG_APNG_DECODER)            += png.o pngdec.o pngdsp.o
+OBJS-$(CONFIG_APNG_ENCODER)            += png.o pngenc.o
+OBJS-$(CONFIG_ARBC_DECODER)            += arbc.o
+OBJS-$(CONFIG_SSA_DECODER)             += assdec.o ass.o
+OBJS-$(CONFIG_SSA_ENCODER)             += assenc.o ass.o
+OBJS-$(CONFIG_ASS_DECODER)             += assdec.o ass.o
+OBJS-$(CONFIG_ASS_ENCODER)             += assenc.o ass.o
+OBJS-$(CONFIG_ASV1_DECODER)            += asvdec.o asv.o mpeg12data.o
+OBJS-$(CONFIG_ASV1_ENCODER)            += asvenc.o asv.o mpeg12data.o
+OBJS-$(CONFIG_ASV2_DECODER)            += asvdec.o asv.o mpeg12data.o
+OBJS-$(CONFIG_ASV2_ENCODER)            += asvenc.o asv.o mpeg12data.o
+OBJS-$(CONFIG_ATRAC1_DECODER)          += atrac1.o atrac.o
+OBJS-$(CONFIG_ATRAC3_DECODER)          += atrac3.o atrac.o
+OBJS-$(CONFIG_ATRAC3AL_DECODER)        += atrac3.o atrac.o
+OBJS-$(CONFIG_ATRAC3P_DECODER)         += atrac3plusdec.o atrac3plus.o \
+                                          atrac3plusdsp.o atrac.o
+OBJS-$(CONFIG_ATRAC3PAL_DECODER)       += atrac3plusdec.o atrac3plus.o \
+                                          atrac3plusdsp.o atrac.o
+OBJS-$(CONFIG_ATRAC9_DECODER)          += atrac9dec.o
+OBJS-$(CONFIG_AURA_DECODER)            += cyuv.o
+OBJS-$(CONFIG_AURA2_DECODER)           += aura.o
+OBJS-$(CONFIG_AVRN_DECODER)            += avrndec.o mjpegdec.o
+OBJS-$(CONFIG_AVRP_DECODER)            += r210dec.o
+OBJS-$(CONFIG_AVRP_ENCODER)            += r210enc.o
+OBJS-$(CONFIG_AVS_DECODER)             += avs.o
+OBJS-$(CONFIG_AVUI_DECODER)            += avuidec.o
+OBJS-$(CONFIG_AVUI_ENCODER)            += avuienc.o
+OBJS-$(CONFIG_AYUV_DECODER)            += v408dec.o
+OBJS-$(CONFIG_AYUV_ENCODER)            += v408enc.o
+OBJS-$(CONFIG_BETHSOFTVID_DECODER)     += bethsoftvideo.o
+OBJS-$(CONFIG_BFI_DECODER)             += bfi.o
+OBJS-$(CONFIG_BINK_DECODER)            += bink.o binkdsp.o
+OBJS-$(CONFIG_BINKAUDIO_DCT_DECODER)   += binkaudio.o
+OBJS-$(CONFIG_BINKAUDIO_RDFT_DECODER)  += binkaudio.o
+OBJS-$(CONFIG_BINTEXT_DECODER)         += bintext.o cga_data.o
+OBJS-$(CONFIG_BITPACKED_DECODER)       += bitpacked.o
+OBJS-$(CONFIG_BMP_DECODER)             += bmp.o msrledec.o
+OBJS-$(CONFIG_BMP_ENCODER)             += bmpenc.o
+OBJS-$(CONFIG_BMV_AUDIO_DECODER)       += bmvaudio.o
+OBJS-$(CONFIG_BMV_VIDEO_DECODER)       += bmvvideo.o
+OBJS-$(CONFIG_BRENDER_PIX_DECODER)     += brenderpix.o
+OBJS-$(CONFIG_C93_DECODER)             += c93.o
+OBJS-$(CONFIG_CAVS_DECODER)            += cavs.o cavsdec.o cavsdsp.o \
+                                          cavsdata.o
+OBJS-$(CONFIG_CCAPTION_DECODER)        += ccaption_dec.o
+OBJS-$(CONFIG_CDGRAPHICS_DECODER)      += cdgraphics.o
+OBJS-$(CONFIG_CDXL_DECODER)            += cdxl.o
+OBJS-$(CONFIG_CFHD_DECODER)            += cfhd.o cfhddata.o
+OBJS-$(CONFIG_CINEPAK_DECODER)         += cinepak.o
+OBJS-$(CONFIG_CINEPAK_ENCODER)         += cinepakenc.o elbg.o
+OBJS-$(CONFIG_CLEARVIDEO_DECODER)      += clearvideo.o
+OBJS-$(CONFIG_CLJR_DECODER)            += cljrdec.o
+OBJS-$(CONFIG_CLJR_ENCODER)            += cljrenc.o
+OBJS-$(CONFIG_CLLC_DECODER)            += cllc.o canopus.o
+OBJS-$(CONFIG_COMFORTNOISE_DECODER)    += cngdec.o celp_filters.o
+OBJS-$(CONFIG_COMFORTNOISE_ENCODER)    += cngenc.o
+OBJS-$(CONFIG_COOK_DECODER)            += cook.o
+OBJS-$(CONFIG_CPIA_DECODER)            += cpia.o
+OBJS-$(CONFIG_CSCD_DECODER)            += cscd.o
+OBJS-$(CONFIG_CYUV_DECODER)            += cyuv.o
+OBJS-$(CONFIG_DCA_DECODER)             += dcadec.o dca.o dcadata.o dcahuff.o \
+                                          dca_core.o dca_exss.o dca_xll.o dca_lbr.o \
+                                          dcadsp.o dcadct.o synth_filter.o
+OBJS-$(CONFIG_DCA_ENCODER)             += dcaenc.o dca.o dcadata.o dcahuff.o \
+                                          dcaadpcm.o
+OBJS-$(CONFIG_DDS_DECODER)             += dds.o
+OBJS-$(CONFIG_DIRAC_DECODER)           += diracdec.o dirac.o diracdsp.o diractab.o \
+                                          dirac_arith.o dirac_dwt.o dirac_vlc.o
+OBJS-$(CONFIG_DFA_DECODER)             += dfa.o
+OBJS-$(CONFIG_DNXHD_DECODER)           += dnxhddec.o dnxhddata.o
+OBJS-$(CONFIG_DNXHD_ENCODER)           += dnxhdenc.o dnxhddata.o
+OBJS-$(CONFIG_DOLBY_E_DECODER)         += dolby_e.o kbdwin.o
+OBJS-$(CONFIG_DPX_DECODER)             += dpx.o
+OBJS-$(CONFIG_DPX_ENCODER)             += dpxenc.o
+OBJS-$(CONFIG_DSD_LSBF_DECODER)        += dsddec.o dsd.o
+OBJS-$(CONFIG_DSD_MSBF_DECODER)        += dsddec.o dsd.o
+OBJS-$(CONFIG_DSD_LSBF_PLANAR_DECODER) += dsddec.o dsd.o
+OBJS-$(CONFIG_DSD_MSBF_PLANAR_DECODER) += dsddec.o dsd.o
+OBJS-$(CONFIG_DSICINAUDIO_DECODER)     += dsicinaudio.o
+OBJS-$(CONFIG_DSICINVIDEO_DECODER)     += dsicinvideo.o
+OBJS-$(CONFIG_DSS_SP_DECODER)          += dss_sp.o
+OBJS-$(CONFIG_DST_DECODER)             += dstdec.o dsd.o
+OBJS-$(CONFIG_DVBSUB_DECODER)          += dvbsubdec.o
+OBJS-$(CONFIG_DVBSUB_ENCODER)          += dvbsub.o
+OBJS-$(CONFIG_DVDSUB_DECODER)          += dvdsubdec.o
+OBJS-$(CONFIG_DVDSUB_ENCODER)          += dvdsubenc.o
+OBJS-$(CONFIG_DVAUDIO_DECODER)         += dvaudiodec.o
+OBJS-$(CONFIG_DVVIDEO_DECODER)         += dvdec.o dv.o dvdata.o
+OBJS-$(CONFIG_DVVIDEO_ENCODER)         += dvenc.o dv.o dvdata.o
+OBJS-$(CONFIG_DXA_DECODER)             += dxa.o
+OBJS-$(CONFIG_DXTORY_DECODER)          += dxtory.o
+OBJS-$(CONFIG_DXV_DECODER)             += dxv.o
+OBJS-$(CONFIG_EAC3_DECODER)            += eac3_data.o
+OBJS-$(CONFIG_EAC3_ENCODER)            += eac3enc.o eac3_data.o
+OBJS-$(CONFIG_EACMV_DECODER)           += eacmv.o
+OBJS-$(CONFIG_EAMAD_DECODER)           += eamad.o eaidct.o mpeg12.o \
+                                          mpeg12data.o
+OBJS-$(CONFIG_EATGQ_DECODER)           += eatgq.o eaidct.o
+OBJS-$(CONFIG_EATGV_DECODER)           += eatgv.o
+OBJS-$(CONFIG_EATQI_DECODER)           += eatqi.o eaidct.o mpeg12.o mpeg12data.o mpegvideodata.o rl.o
+OBJS-$(CONFIG_EIGHTBPS_DECODER)        += 8bps.o
+OBJS-$(CONFIG_EIGHTSVX_EXP_DECODER)    += 8svx.o
+OBJS-$(CONFIG_EIGHTSVX_FIB_DECODER)    += 8svx.o
+OBJS-$(CONFIG_ESCAPE124_DECODER)       += escape124.o
+OBJS-$(CONFIG_ESCAPE130_DECODER)       += escape130.o
+OBJS-$(CONFIG_EVRC_DECODER)            += evrcdec.o acelp_vectors.o lsp.o
+OBJS-$(CONFIG_EXR_DECODER)             += exr.o exrdsp.o
+OBJS-$(CONFIG_FFV1_DECODER)            += ffv1dec.o ffv1.o
+OBJS-$(CONFIG_FFV1_ENCODER)            += ffv1enc.o ffv1.o
+OBJS-$(CONFIG_FFWAVESYNTH_DECODER)     += ffwavesynth.o
+OBJS-$(CONFIG_FIC_DECODER)             += fic.o
+OBJS-$(CONFIG_FITS_DECODER)            += fitsdec.o fits.o
+OBJS-$(CONFIG_FITS_ENCODER)            += fitsenc.o
+OBJS-$(CONFIG_FLAC_DECODER)            += flacdec.o flacdata.o flac.o
+OBJS-$(CONFIG_FLAC_ENCODER)            += flacenc.o flacdata.o flac.o vorbis_data.o
+OBJS-$(CONFIG_FLASHSV_DECODER)         += flashsv.o
+OBJS-$(CONFIG_FLASHSV_ENCODER)         += flashsvenc.o
+OBJS-$(CONFIG_FLASHSV2_ENCODER)        += flashsv2enc.o
+OBJS-$(CONFIG_FLASHSV2_DECODER)        += flashsv.o
+OBJS-$(CONFIG_FLIC_DECODER)            += flicvideo.o
+OBJS-$(CONFIG_FMVC_DECODER)            += fmvc.o
+OBJS-$(CONFIG_FOURXM_DECODER)          += 4xm.o
+OBJS-$(CONFIG_FRAPS_DECODER)           += fraps.o
+OBJS-$(CONFIG_FRWU_DECODER)            += frwu.o
+OBJS-$(CONFIG_G2M_DECODER)             += g2meet.o elsdec.o
+OBJS-$(CONFIG_G723_1_DECODER)          += g723_1dec.o g723_1.o \
+                                          acelp_vectors.o celp_filters.o celp_math.o
+OBJS-$(CONFIG_G723_1_ENCODER)          += g723_1enc.o g723_1.o \
+                                          acelp_vectors.o celp_filters.o celp_math.o
+OBJS-$(CONFIG_G729_DECODER)            += g729dec.o lsp.o celp_math.o celp_filters.o acelp_filters.o acelp_pitch_delay.o acelp_vectors.o g729postfilter.o
+OBJS-$(CONFIG_GDV_DECODER)             += gdv.o
+OBJS-$(CONFIG_GIF_DECODER)             += gifdec.o lzw.o
+OBJS-$(CONFIG_GIF_ENCODER)             += gif.o lzwenc.o
+OBJS-$(CONFIG_GREMLIN_DPCM_DECODER)    += dpcm.o
+OBJS-$(CONFIG_GSM_DECODER)             += gsmdec.o gsmdec_data.o msgsmdec.o
+OBJS-$(CONFIG_GSM_MS_DECODER)          += gsmdec.o gsmdec_data.o msgsmdec.o
+OBJS-$(CONFIG_H261_DECODER)            += h261dec.o h261data.o h261.o
+OBJS-$(CONFIG_H261_ENCODER)            += h261enc.o h261data.o h261.o
+OBJS-$(CONFIG_H263_DECODER)            += h263dec.o h263.o ituh263dec.o        \
+                                          mpeg4video.o mpeg4videodec.o flvdec.o\
+                                          intelh263dec.o h263data.o
+OBJS-$(CONFIG_H263_ENCODER)            += mpeg4videoenc.o mpeg4video.o  \
+                                          h263.o ituh263enc.o flvenc.o h263data.o
+OBJS-$(CONFIG_H263_V4L2M2M_DECODER)    += v4l2_m2m_dec.o
+OBJS-$(CONFIG_H263_V4L2M2M_ENCODER)    += v4l2_m2m_enc.o
+OBJS-$(CONFIG_H264_DECODER)            += h264dec.o h264_cabac.o h264_cavlc.o \
+                                          h264_direct.o h264_loopfilter.o  \
+                                          h264_mb.o h264_picture.o \
+                                          h264_refs.o h264_sei.o \
+                                          h264_slice.o h264data.o
+OBJS-$(CONFIG_H264_AMF_ENCODER)        += amfenc_h264.o
+OBJS-$(CONFIG_H264_CUVID_DECODER)      += cuviddec.o
+OBJS-$(CONFIG_H264_MEDIACODEC_DECODER) += mediacodecdec.o
+OBJS-$(CONFIG_H264_MMAL_DECODER)       += mmaldec.o
+OBJS-$(CONFIG_H264_NVENC_ENCODER)      += nvenc_h264.o
+OBJS-$(CONFIG_NVENC_ENCODER)           += nvenc_h264.o
+OBJS-$(CONFIG_NVENC_H264_ENCODER)      += nvenc_h264.o
+OBJS-$(CONFIG_H264_OMX_ENCODER)        += omx.o
+OBJS-$(CONFIG_H264_QSV_DECODER)        += qsvdec_h2645.o
+OBJS-$(CONFIG_H264_QSV_ENCODER)        += qsvenc_h264.o
+OBJS-$(CONFIG_H264_RKMPP_DECODER)      += rkmppdec.o
+OBJS-$(CONFIG_H264_VAAPI_ENCODER)      += vaapi_encode_h264.o h264_levels.o
+OBJS-$(CONFIG_H264_VIDEOTOOLBOX_ENCODER) += videotoolboxenc.o
+OBJS-$(CONFIG_H264_V4L2M2M_DECODER)    += v4l2_m2m_dec.o
+OBJS-$(CONFIG_H264_V4L2M2M_ENCODER)    += v4l2_m2m_enc.o
+OBJS-$(CONFIG_HAP_DECODER)             += hapdec.o hap.o
+OBJS-$(CONFIG_HAP_ENCODER)             += hapenc.o hap.o
+OBJS-$(CONFIG_HCOM_DECODER)            += hcom.o
+OBJS-$(CONFIG_HEVC_DECODER)            += hevcdec.o hevc_mvs.o \
+                                          hevc_cabac.o hevc_refs.o hevcpred.o    \
+                                          hevcdsp.o hevc_filter.o hevc_data.o
+OBJS-$(CONFIG_HEVC_AMF_ENCODER)        += amfenc_hevc.o
+OBJS-$(CONFIG_HEVC_CUVID_DECODER)      += cuviddec.o
+OBJS-$(CONFIG_HEVC_MEDIACODEC_DECODER) += mediacodecdec.o
+OBJS-$(CONFIG_HEVC_NVENC_ENCODER)      += nvenc_hevc.o
+OBJS-$(CONFIG_NVENC_HEVC_ENCODER)      += nvenc_hevc.o
+OBJS-$(CONFIG_HEVC_QSV_DECODER)        += qsvdec_h2645.o
+OBJS-$(CONFIG_HEVC_QSV_ENCODER)        += qsvenc_hevc.o hevc_ps_enc.o       \
+                                          hevc_data.o
+OBJS-$(CONFIG_HEVC_RKMPP_DECODER)      += rkmppdec.o
+OBJS-$(CONFIG_HEVC_VAAPI_ENCODER)      += vaapi_encode_h265.o h265_profile_level.o
+OBJS-$(CONFIG_HEVC_V4L2M2M_DECODER)    += v4l2_m2m_dec.o
+OBJS-$(CONFIG_HEVC_V4L2M2M_ENCODER)    += v4l2_m2m_enc.o
+OBJS-$(CONFIG_HNM4_VIDEO_DECODER)      += hnm4video.o
+OBJS-$(CONFIG_HQ_HQA_DECODER)          += hq_hqa.o hq_hqadata.o hq_hqadsp.o \
+                                          canopus.o
+OBJS-$(CONFIG_HQX_DECODER)             += hqx.o hqxvlc.o hqxdsp.o canopus.o
+OBJS-$(CONFIG_HUFFYUV_DECODER)         += huffyuv.o huffyuvdec.o
+OBJS-$(CONFIG_HUFFYUV_ENCODER)         += huffyuv.o huffyuvenc.o
+OBJS-$(CONFIG_HYMT_DECODER)            += huffyuv.o huffyuvdec.o
+OBJS-$(CONFIG_IDCIN_DECODER)           += idcinvideo.o
+OBJS-$(CONFIG_IDF_DECODER)             += bintext.o cga_data.o
+OBJS-$(CONFIG_IFF_ILBM_DECODER)        += iff.o
+OBJS-$(CONFIG_ILBC_DECODER)            += ilbcdec.o
+OBJS-$(CONFIG_IMC_DECODER)             += imc.o
+OBJS-$(CONFIG_IMM4_DECODER)            += imm4.o
+OBJS-$(CONFIG_INDEO2_DECODER)          += indeo2.o
+OBJS-$(CONFIG_INDEO3_DECODER)          += indeo3.o
+OBJS-$(CONFIG_INDEO4_DECODER)          += indeo4.o ivi.o
+OBJS-$(CONFIG_INDEO5_DECODER)          += indeo5.o ivi.o
+OBJS-$(CONFIG_INTERPLAY_ACM_DECODER)   += interplayacm.o
+OBJS-$(CONFIG_INTERPLAY_DPCM_DECODER)  += dpcm.o
+OBJS-$(CONFIG_INTERPLAY_VIDEO_DECODER) += interplayvideo.o
+OBJS-$(CONFIG_JACOSUB_DECODER)         += jacosubdec.o ass.o
+OBJS-$(CONFIG_JPEG2000_ENCODER)        += j2kenc.o mqcenc.o mqc.o jpeg2000.o \
+                                          jpeg2000dwt.o
+OBJS-$(CONFIG_JPEG2000_DECODER)        += jpeg2000dec.o jpeg2000.o jpeg2000dsp.o \
+                                          jpeg2000dwt.o mqcdec.o mqc.o
+OBJS-$(CONFIG_JPEGLS_DECODER)          += jpeglsdec.o jpegls.o
+OBJS-$(CONFIG_JPEGLS_ENCODER)          += jpeglsenc.o jpegls.o
+OBJS-$(CONFIG_JV_DECODER)              += jvdec.o
+OBJS-$(CONFIG_KGV1_DECODER)            += kgv1dec.o
+OBJS-$(CONFIG_KMVC_DECODER)            += kmvc.o
+OBJS-$(CONFIG_LAGARITH_DECODER)        += lagarith.o lagarithrac.o
+OBJS-$(CONFIG_LJPEG_ENCODER)           += ljpegenc.o mjpegenc_common.o
+OBJS-$(CONFIG_LOCO_DECODER)            += loco.o
+OBJS-$(CONFIG_LSCR_DECODER)            += png.o pngdec.o pngdsp.o
+OBJS-$(CONFIG_M101_DECODER)            += m101.o
+OBJS-$(CONFIG_MACE3_DECODER)           += mace.o
+OBJS-$(CONFIG_MACE6_DECODER)           += mace.o
+OBJS-$(CONFIG_MAGICYUV_DECODER)        += magicyuv.o
+OBJS-$(CONFIG_MAGICYUV_ENCODER)        += magicyuvenc.o
+OBJS-$(CONFIG_MDEC_DECODER)            += mdec.o mpeg12.o mpeg12data.o
+OBJS-$(CONFIG_METASOUND_DECODER)       += metasound.o metasound_data.o \
+                                          twinvq.o
+OBJS-$(CONFIG_MICRODVD_DECODER)        += microdvddec.o ass.o
+OBJS-$(CONFIG_MIMIC_DECODER)           += mimic.o
+OBJS-$(CONFIG_MJPEG_DECODER)           += mjpegdec.o
+OBJS-$(CONFIG_MJPEG_ENCODER)           += mjpegenc.o mjpegenc_common.o \
+                                          mjpegenc_huffman.o
+OBJS-$(CONFIG_MJPEGB_DECODER)          += mjpegbdec.o
+OBJS-$(CONFIG_MJPEG_CUVID_DECODER)     += cuviddec.o
+OBJS-$(CONFIG_MJPEG_QSV_ENCODER)       += qsvenc_jpeg.o
+OBJS-$(CONFIG_MJPEG_VAAPI_ENCODER)     += vaapi_encode_mjpeg.o
+OBJS-$(CONFIG_MLP_DECODER)             += mlpdec.o mlpdsp.o
+OBJS-$(CONFIG_MLP_ENCODER)             += mlpenc.o mlp.o
+OBJS-$(CONFIG_MMVIDEO_DECODER)         += mmvideo.o
+OBJS-$(CONFIG_MOTIONPIXELS_DECODER)    += motionpixels.o
+OBJS-$(CONFIG_MOVTEXT_DECODER)         += movtextdec.o ass.o
+OBJS-$(CONFIG_MOVTEXT_ENCODER)         += movtextenc.o ass_split.o
+OBJS-$(CONFIG_MP1_DECODER)             += mpegaudiodec_fixed.o
+OBJS-$(CONFIG_MP1FLOAT_DECODER)        += mpegaudiodec_float.o
+OBJS-$(CONFIG_MP2_DECODER)             += mpegaudiodec_fixed.o
+OBJS-$(CONFIG_MP2_ENCODER)             += mpegaudioenc_float.o mpegaudio.o \
+                                          mpegaudiodata.o mpegaudiodsp_data.o
+OBJS-$(CONFIG_MP2FIXED_ENCODER)        += mpegaudioenc_fixed.o mpegaudio.o \
+                                          mpegaudiodata.o mpegaudiodsp_data.o
+OBJS-$(CONFIG_MP2FLOAT_DECODER)        += mpegaudiodec_float.o
+OBJS-$(CONFIG_MP3_DECODER)             += mpegaudiodec_fixed.o
+OBJS-$(CONFIG_MP3ADU_DECODER)          += mpegaudiodec_fixed.o
+OBJS-$(CONFIG_MP3ADUFLOAT_DECODER)     += mpegaudiodec_float.o
+OBJS-$(CONFIG_MP3FLOAT_DECODER)        += mpegaudiodec_float.o
+OBJS-$(CONFIG_MP3ON4_DECODER)          += mpegaudiodec_fixed.o mpeg4audio.o
+OBJS-$(CONFIG_MP3ON4FLOAT_DECODER)     += mpegaudiodec_float.o mpeg4audio.o
+OBJS-$(CONFIG_MPC7_DECODER)            += mpc7.o mpc.o
+OBJS-$(CONFIG_MPC8_DECODER)            += mpc8.o mpc.o
+OBJS-$(CONFIG_MPEGVIDEO_DECODER)       += mpeg12dec.o mpeg12.o mpeg12data.o
+OBJS-$(CONFIG_MPEG1VIDEO_DECODER)      += mpeg12dec.o mpeg12.o mpeg12data.o
+OBJS-$(CONFIG_MPEG1VIDEO_ENCODER)      += mpeg12enc.o mpeg12.o
+OBJS-$(CONFIG_MPEG1_CUVID_DECODER)     += cuviddec.o
+OBJS-$(CONFIG_MPEG1_V4L2M2M_DECODER)   += v4l2_m2m_dec.o
+OBJS-$(CONFIG_MPEG2_MMAL_DECODER)      += mmaldec.o
+OBJS-$(CONFIG_MPEG2_QSV_DECODER)       += qsvdec_other.o
+OBJS-$(CONFIG_MPEG2_QSV_ENCODER)       += qsvenc_mpeg2.o
+OBJS-$(CONFIG_MPEG2VIDEO_DECODER)      += mpeg12dec.o mpeg12.o mpeg12data.o
+OBJS-$(CONFIG_MPEG2VIDEO_ENCODER)      += mpeg12enc.o mpeg12.o
+OBJS-$(CONFIG_MPEG2_CUVID_DECODER)     += cuviddec.o
+OBJS-$(CONFIG_MPEG2_MEDIACODEC_DECODER) += mediacodecdec.o
+OBJS-$(CONFIG_MPEG2_VAAPI_ENCODER)     += vaapi_encode_mpeg2.o
+OBJS-$(CONFIG_MPEG2_V4L2M2M_DECODER)   += v4l2_m2m_dec.o
+OBJS-$(CONFIG_MPEG4_DECODER)           += xvididct.o
+OBJS-$(CONFIG_MPEG4_CUVID_DECODER)     += cuviddec.o
+OBJS-$(CONFIG_MPEG4_MEDIACODEC_DECODER) += mediacodecdec.o
+OBJS-$(CONFIG_MPEG4_OMX_ENCODER)       += omx.o
+OBJS-$(CONFIG_MPEG4_V4L2M2M_DECODER)   += v4l2_m2m_dec.o
+OBJS-$(CONFIG_MPEG4_V4L2M2M_ENCODER)   += v4l2_m2m_enc.o
+OBJS-$(CONFIG_MPL2_DECODER)            += mpl2dec.o ass.o
+OBJS-$(CONFIG_MSA1_DECODER)            += mss3.o
+OBJS-$(CONFIG_MSCC_DECODER)            += mscc.o
+OBJS-$(CONFIG_MSMPEG4V1_DECODER)       += msmpeg4dec.o msmpeg4.o msmpeg4data.o
+OBJS-$(CONFIG_MSMPEG4V2_DECODER)       += msmpeg4dec.o msmpeg4.o msmpeg4data.o
+OBJS-$(CONFIG_MSMPEG4V2_ENCODER)       += msmpeg4enc.o msmpeg4.o msmpeg4data.o
+OBJS-$(CONFIG_MSMPEG4V3_DECODER)       += msmpeg4dec.o msmpeg4.o msmpeg4data.o
+OBJS-$(CONFIG_MSMPEG4V3_ENCODER)       += msmpeg4enc.o msmpeg4.o msmpeg4data.o
+OBJS-$(CONFIG_MSRLE_DECODER)           += msrle.o msrledec.o
+OBJS-$(CONFIG_MSS1_DECODER)            += mss1.o mss12.o
+OBJS-$(CONFIG_MSS2_DECODER)            += mss2.o mss12.o mss2dsp.o wmv2data.o
+OBJS-$(CONFIG_MSVIDEO1_DECODER)        += msvideo1.o
+OBJS-$(CONFIG_MSVIDEO1_ENCODER)        += msvideo1enc.o elbg.o
+OBJS-$(CONFIG_MSZH_DECODER)            += lcldec.o
+OBJS-$(CONFIG_MTS2_DECODER)            += mss4.o
+OBJS-$(CONFIG_MVC1_DECODER)            += mvcdec.o
+OBJS-$(CONFIG_MVC2_DECODER)            += mvcdec.o
+OBJS-$(CONFIG_MWSC_DECODER)            += mwsc.o
+OBJS-$(CONFIG_MXPEG_DECODER)           += mxpegdec.o
+OBJS-$(CONFIG_NELLYMOSER_DECODER)      += nellymoserdec.o nellymoser.o
+OBJS-$(CONFIG_NELLYMOSER_ENCODER)      += nellymoserenc.o nellymoser.o
+OBJS-$(CONFIG_NUV_DECODER)             += nuv.o rtjpeg.o
+OBJS-$(CONFIG_ON2AVC_DECODER)          += on2avc.o on2avcdata.o
+OBJS-$(CONFIG_OPUS_DECODER)            += opusdec.o opus.o opus_celt.o opus_rc.o \
+                                          opus_pvq.o opus_silk.o opustab.o vorbis_data.o \
+                                          opusdsp.o
+OBJS-$(CONFIG_OPUS_ENCODER)            += opusenc.o opus.o opus_rc.o opustab.o opus_pvq.o \
+                                          opusenc_psy.o
+OBJS-$(CONFIG_PAF_AUDIO_DECODER)       += pafaudio.o
+OBJS-$(CONFIG_PAF_VIDEO_DECODER)       += pafvideo.o
+OBJS-$(CONFIG_PAM_DECODER)             += pnmdec.o pnm.o
+OBJS-$(CONFIG_PAM_ENCODER)             += pamenc.o
+OBJS-$(CONFIG_PBM_DECODER)             += pnmdec.o pnm.o
+OBJS-$(CONFIG_PBM_ENCODER)             += pnmenc.o
+OBJS-$(CONFIG_PCX_DECODER)             += pcx.o
+OBJS-$(CONFIG_PCX_ENCODER)             += pcxenc.o
+OBJS-$(CONFIG_PGM_DECODER)             += pnmdec.o pnm.o
+OBJS-$(CONFIG_PGM_ENCODER)             += pnmenc.o
+OBJS-$(CONFIG_PGMYUV_DECODER)          += pnmdec.o pnm.o
+OBJS-$(CONFIG_PGMYUV_ENCODER)          += pnmenc.o
+OBJS-$(CONFIG_PGSSUB_DECODER)          += pgssubdec.o
+OBJS-$(CONFIG_PICTOR_DECODER)          += pictordec.o cga_data.o
+OBJS-$(CONFIG_PIXLET_DECODER)          += pixlet.o
+OBJS-$(CONFIG_PJS_DECODER)             += textdec.o ass.o
+OBJS-$(CONFIG_PNG_DECODER)             += png.o pngdec.o pngdsp.o
+OBJS-$(CONFIG_PNG_ENCODER)             += png.o pngenc.o
+OBJS-$(CONFIG_PPM_DECODER)             += pnmdec.o pnm.o
+OBJS-$(CONFIG_PPM_ENCODER)             += pnmenc.o
+OBJS-$(CONFIG_PRORES_DECODER)          += proresdec2.o proresdsp.o proresdata.o
+OBJS-$(CONFIG_PRORES_ENCODER)          += proresenc_anatoliy.o proresdata.o
+OBJS-$(CONFIG_PRORES_AW_ENCODER)       += proresenc_anatoliy.o proresdata.o
+OBJS-$(CONFIG_PRORES_KS_ENCODER)       += proresenc_kostya.o proresdata.o
+OBJS-$(CONFIG_PROSUMER_DECODER)        += prosumer.o
+OBJS-$(CONFIG_PSD_DECODER)             += psd.o
+OBJS-$(CONFIG_PTX_DECODER)             += ptx.o
+OBJS-$(CONFIG_QCELP_DECODER)           += qcelpdec.o                     \
+                                          celp_filters.o acelp_vectors.o \
+                                          acelp_filters.o
+OBJS-$(CONFIG_QDM2_DECODER)            += qdm2.o
+OBJS-$(CONFIG_QDMC_DECODER)            += qdmc.o
+OBJS-$(CONFIG_QDRAW_DECODER)           += qdrw.o
+OBJS-$(CONFIG_QPEG_DECODER)            += qpeg.o
+OBJS-$(CONFIG_QTRLE_DECODER)           += qtrle.o
+OBJS-$(CONFIG_QTRLE_ENCODER)           += qtrleenc.o
+OBJS-$(CONFIG_R10K_DECODER)            += r210dec.o
+OBJS-$(CONFIG_R10K_ENCODER)            += r210enc.o
+OBJS-$(CONFIG_R210_DECODER)            += r210dec.o
+OBJS-$(CONFIG_R210_ENCODER)            += r210enc.o
+OBJS-$(CONFIG_RA_144_DECODER)          += ra144dec.o ra144.o celp_filters.o
+OBJS-$(CONFIG_RA_144_ENCODER)          += ra144enc.o ra144.o celp_filters.o
+OBJS-$(CONFIG_RA_288_DECODER)          += ra288.o celp_filters.o
+OBJS-$(CONFIG_RALF_DECODER)            += ralf.o
+OBJS-$(CONFIG_RASC_DECODER)            += rasc.o
+OBJS-$(CONFIG_RAWVIDEO_DECODER)        += rawdec.o
+OBJS-$(CONFIG_RAWVIDEO_ENCODER)        += rawenc.o
+OBJS-$(CONFIG_REALTEXT_DECODER)        += realtextdec.o ass.o
+OBJS-$(CONFIG_RL2_DECODER)             += rl2.o
+OBJS-$(CONFIG_ROQ_DECODER)             += roqvideodec.o roqvideo.o
+OBJS-$(CONFIG_ROQ_ENCODER)             += roqvideoenc.o roqvideo.o elbg.o
+OBJS-$(CONFIG_ROQ_DPCM_DECODER)        += dpcm.o
+OBJS-$(CONFIG_ROQ_DPCM_ENCODER)        += roqaudioenc.o
+OBJS-$(CONFIG_RPZA_DECODER)            += rpza.o
+OBJS-$(CONFIG_RSCC_DECODER)            += rscc.o
+OBJS-$(CONFIG_RV10_DECODER)            += rv10.o
+OBJS-$(CONFIG_RV10_ENCODER)            += rv10enc.o
+OBJS-$(CONFIG_RV20_DECODER)            += rv10.o
+OBJS-$(CONFIG_RV20_ENCODER)            += rv20enc.o
+OBJS-$(CONFIG_RV30_DECODER)            += rv30.o rv34.o rv30dsp.o
+OBJS-$(CONFIG_RV40_DECODER)            += rv40.o rv34.o rv40dsp.o
+OBJS-$(CONFIG_SAMI_DECODER)            += samidec.o ass.o htmlsubtitles.o
+OBJS-$(CONFIG_S302M_DECODER)           += s302m.o
+OBJS-$(CONFIG_S302M_ENCODER)           += s302menc.o
+OBJS-$(CONFIG_SANM_DECODER)            += sanm.o
+OBJS-$(CONFIG_SCPR_DECODER)            += scpr.o
+OBJS-$(CONFIG_SCREENPRESSO_DECODER)    += screenpresso.o
+OBJS-$(CONFIG_SDX2_DPCM_DECODER)       += dpcm.o
+OBJS-$(CONFIG_SGI_DECODER)             += sgidec.o
+OBJS-$(CONFIG_SGI_ENCODER)             += sgienc.o rle.o
+OBJS-$(CONFIG_SGIRLE_DECODER)          += sgirledec.o
+OBJS-$(CONFIG_SHEERVIDEO_DECODER)      += sheervideo.o
+OBJS-$(CONFIG_SHORTEN_DECODER)         += shorten.o
+OBJS-$(CONFIG_SIPR_DECODER)            += sipr.o acelp_pitch_delay.o \
+                                          celp_math.o acelp_vectors.o \
+                                          acelp_filters.o celp_filters.o \
+                                          sipr16k.o
+OBJS-$(CONFIG_SMACKAUD_DECODER)        += smacker.o
+OBJS-$(CONFIG_SMACKER_DECODER)         += smacker.o
+OBJS-$(CONFIG_SMC_DECODER)             += smc.o
+OBJS-$(CONFIG_SMVJPEG_DECODER)         += smvjpegdec.o
+OBJS-$(CONFIG_SNOW_DECODER)            += snowdec.o snow.o snow_dwt.o
+OBJS-$(CONFIG_SNOW_ENCODER)            += snowenc.o snow.o snow_dwt.o             \
+                                          h263.o ituh263enc.o
+OBJS-$(CONFIG_SOL_DPCM_DECODER)        += dpcm.o
+OBJS-$(CONFIG_SONIC_DECODER)           += sonic.o
+OBJS-$(CONFIG_SONIC_ENCODER)           += sonic.o
+OBJS-$(CONFIG_SONIC_LS_ENCODER)        += sonic.o
+OBJS-$(CONFIG_SPEEDHQ_DECODER)         += speedhq.o mpeg12.o mpeg12data.o simple_idct.o
+OBJS-$(CONFIG_SP5X_DECODER)            += sp5xdec.o
+OBJS-$(CONFIG_SRGC_DECODER)            += mscc.o
+OBJS-$(CONFIG_SRT_DECODER)             += srtdec.o ass.o htmlsubtitles.o
+OBJS-$(CONFIG_SRT_ENCODER)             += srtenc.o ass_split.o
+OBJS-$(CONFIG_STL_DECODER)             += textdec.o ass.o
+OBJS-$(CONFIG_SUBRIP_DECODER)          += srtdec.o ass.o htmlsubtitles.o
+OBJS-$(CONFIG_SUBRIP_ENCODER)          += srtenc.o ass_split.o
+OBJS-$(CONFIG_SUBVIEWER1_DECODER)      += textdec.o ass.o
+OBJS-$(CONFIG_SUBVIEWER_DECODER)       += subviewerdec.o ass.o
+OBJS-$(CONFIG_SUNRAST_DECODER)         += sunrast.o
+OBJS-$(CONFIG_SUNRAST_ENCODER)         += sunrastenc.o
+OBJS-$(CONFIG_LIBRSVG_DECODER)         += librsvgdec.o
+OBJS-$(CONFIG_SBC_DECODER)             += sbcdec.o sbcdec_data.o sbc.o
+OBJS-$(CONFIG_SBC_ENCODER)             += sbcenc.o sbc.o sbcdsp.o sbcdsp_data.o
+OBJS-$(CONFIG_SVQ1_DECODER)            += svq1dec.o svq1.o svq13.o h263data.o
+OBJS-$(CONFIG_SVQ1_ENCODER)            += svq1enc.o svq1.o  h263data.o  \
+                                          h263.o ituh263enc.o
+OBJS-$(CONFIG_SVQ3_DECODER)            += svq3.o svq13.o mpegutils.o h264data.o
+OBJS-$(CONFIG_TEXT_DECODER)            += textdec.o ass.o
+OBJS-$(CONFIG_TEXT_ENCODER)            += srtenc.o ass_split.o
+OBJS-$(CONFIG_TAK_DECODER)             += takdec.o tak.o takdsp.o
+OBJS-$(CONFIG_TARGA_DECODER)           += targa.o
+OBJS-$(CONFIG_TARGA_ENCODER)           += targaenc.o rle.o
+OBJS-$(CONFIG_TARGA_Y216_DECODER)      += targa_y216dec.o
+OBJS-$(CONFIG_TDSC_DECODER)            += tdsc.o
+OBJS-$(CONFIG_TIERTEXSEQVIDEO_DECODER) += tiertexseqv.o
+OBJS-$(CONFIG_TIFF_DECODER)            += tiff.o lzw.o faxcompr.o tiff_data.o tiff_common.o
+OBJS-$(CONFIG_TIFF_ENCODER)            += tiffenc.o rle.o lzwenc.o tiff_data.o
+OBJS-$(CONFIG_TMV_DECODER)             += tmv.o cga_data.o
+OBJS-$(CONFIG_TRUEHD_DECODER)          += mlpdec.o mlpdsp.o
+OBJS-$(CONFIG_TRUEHD_ENCODER)          += mlpenc.o mlp.o
+OBJS-$(CONFIG_TRUEMOTION1_DECODER)     += truemotion1.o
+OBJS-$(CONFIG_TRUEMOTION2_DECODER)     += truemotion2.o
+OBJS-$(CONFIG_TRUEMOTION2RT_DECODER)   += truemotion2rt.o
+OBJS-$(CONFIG_TRUESPEECH_DECODER)      += truespeech.o
+OBJS-$(CONFIG_TSCC_DECODER)            += tscc.o msrledec.o
+OBJS-$(CONFIG_TSCC2_DECODER)           += tscc2.o
+OBJS-$(CONFIG_TTA_DECODER)             += tta.o ttadata.o ttadsp.o
+OBJS-$(CONFIG_TTA_ENCODER)             += ttaenc.o ttaencdsp.o ttadata.o
+OBJS-$(CONFIG_TWINVQ_DECODER)          += twinvqdec.o twinvq.o
+OBJS-$(CONFIG_TXD_DECODER)             += txd.o
+OBJS-$(CONFIG_ULTI_DECODER)            += ulti.o
+OBJS-$(CONFIG_UTVIDEO_DECODER)         += utvideodec.o utvideo.o utvideodsp.o
+OBJS-$(CONFIG_UTVIDEO_ENCODER)         += utvideoenc.o utvideo.o
+OBJS-$(CONFIG_V210_DECODER)            += v210dec.o
+OBJS-$(CONFIG_V210_ENCODER)            += v210enc.o
+OBJS-$(CONFIG_V210X_DECODER)           += v210x.o
+OBJS-$(CONFIG_V308_DECODER)            += v308dec.o
+OBJS-$(CONFIG_V308_ENCODER)            += v308enc.o
+OBJS-$(CONFIG_V408_DECODER)            += v408dec.o
+OBJS-$(CONFIG_V408_ENCODER)            += v408enc.o
+OBJS-$(CONFIG_V410_DECODER)            += v410dec.o
+OBJS-$(CONFIG_V410_ENCODER)            += v410enc.o
+OBJS-$(CONFIG_VB_DECODER)              += vb.o
+OBJS-$(CONFIG_VBLE_DECODER)            += vble.o
+OBJS-$(CONFIG_VC1_DECODER)             += vc1dec.o vc1_block.o vc1_loopfilter.o \
+                                          vc1_mc.o vc1_pred.o vc1.o vc1data.o \
+                                          msmpeg4dec.o msmpeg4.o msmpeg4data.o \
+                                          wmv2dsp.o wmv2data.o
+OBJS-$(CONFIG_VC1_CUVID_DECODER)       += cuviddec.o
+OBJS-$(CONFIG_VC1_MMAL_DECODER)        += mmaldec.o
+OBJS-$(CONFIG_VC1_QSV_DECODER)         += qsvdec_other.o
+OBJS-$(CONFIG_VC1_V4L2M2M_DECODER)     += v4l2_m2m_dec.o
+OBJS-$(CONFIG_VC2_ENCODER)             += vc2enc.o vc2enc_dwt.o diractab.o
+OBJS-$(CONFIG_VCR1_DECODER)            += vcr1.o
+OBJS-$(CONFIG_VMDAUDIO_DECODER)        += vmdaudio.o
+OBJS-$(CONFIG_VMDVIDEO_DECODER)        += vmdvideo.o
+OBJS-$(CONFIG_VMNC_DECODER)            += vmnc.o
+OBJS-$(CONFIG_VORBIS_DECODER)          += vorbisdec.o vorbisdsp.o vorbis.o \
+                                          vorbis_data.o
+OBJS-$(CONFIG_VORBIS_ENCODER)          += vorbisenc.o vorbis.o \
+                                          vorbis_data.o
+OBJS-$(CONFIG_VP3_DECODER)             += vp3.o
+OBJS-$(CONFIG_VP5_DECODER)             += vp5.o vp56.o vp56data.o vp56rac.o
+OBJS-$(CONFIG_VP6_DECODER)             += vp6.o vp56.o vp56data.o \
+                                          vp6dsp.o vp56rac.o
+OBJS-$(CONFIG_VP7_DECODER)             += vp8.o vp56rac.o
+OBJS-$(CONFIG_VP8_DECODER)             += vp8.o vp56rac.o
+OBJS-$(CONFIG_VP8_CUVID_DECODER)       += cuviddec.o
+OBJS-$(CONFIG_VP8_MEDIACODEC_DECODER)  += mediacodecdec.o
+OBJS-$(CONFIG_VP8_QSV_DECODER)         += qsvdec_other.o
+OBJS-$(CONFIG_VP8_RKMPP_DECODER)       += rkmppdec.o
+OBJS-$(CONFIG_VP8_VAAPI_ENCODER)       += vaapi_encode_vp8.o
+OBJS-$(CONFIG_VP8_V4L2M2M_DECODER)     += v4l2_m2m_dec.o
+OBJS-$(CONFIG_VP8_V4L2M2M_ENCODER)     += v4l2_m2m_enc.o
+OBJS-$(CONFIG_VP9_DECODER)             += vp9.o vp9data.o vp9dsp.o vp9lpf.o vp9recon.o \
+                                          vp9block.o vp9prob.o vp9mvs.o vp56rac.o \
+                                          vp9dsp_8bpp.o vp9dsp_10bpp.o vp9dsp_12bpp.o
+OBJS-$(CONFIG_VP9_CUVID_DECODER)       += cuviddec.o
+OBJS-$(CONFIG_VP9_MEDIACODEC_DECODER)  += mediacodecdec.o
+OBJS-$(CONFIG_VP9_RKMPP_DECODER)       += rkmppdec.o
+OBJS-$(CONFIG_VP9_VAAPI_ENCODER)       += vaapi_encode_vp9.o
+OBJS-$(CONFIG_VPLAYER_DECODER)         += textdec.o ass.o
+OBJS-$(CONFIG_VP9_V4L2M2M_DECODER)     += v4l2_m2m_dec.o
+OBJS-$(CONFIG_VQA_DECODER)             += vqavideo.o
+OBJS-$(CONFIG_WAVPACK_DECODER)         += wavpack.o
+OBJS-$(CONFIG_WAVPACK_ENCODER)         += wavpackenc.o
+OBJS-$(CONFIG_WCMV_DECODER)            += wcmv.o
+OBJS-$(CONFIG_WEBP_DECODER)            += webp.o
+OBJS-$(CONFIG_WEBVTT_DECODER)          += webvttdec.o ass.o
+OBJS-$(CONFIG_WEBVTT_ENCODER)          += webvttenc.o ass_split.o
+OBJS-$(CONFIG_WMALOSSLESS_DECODER)     += wmalosslessdec.o wma_common.o
+OBJS-$(CONFIG_WMAPRO_DECODER)          += wmaprodec.o wma.o wma_common.o
+OBJS-$(CONFIG_WMAV1_DECODER)           += wmadec.o wma.o wma_common.o aactab.o
+OBJS-$(CONFIG_WMAV1_ENCODER)           += wmaenc.o wma.o wma_common.o aactab.o
+OBJS-$(CONFIG_WMAV2_DECODER)           += wmadec.o wma.o wma_common.o aactab.o
+OBJS-$(CONFIG_WMAV2_ENCODER)           += wmaenc.o wma.o wma_common.o aactab.o
+OBJS-$(CONFIG_WMAVOICE_DECODER)        += wmavoice.o \
+                                          celp_filters.o \
+                                          acelp_vectors.o acelp_filters.o
+OBJS-$(CONFIG_WMV1_DECODER)            += msmpeg4dec.o msmpeg4.o msmpeg4data.o
+OBJS-$(CONFIG_WMV1_ENCODER)            += msmpeg4enc.o
+OBJS-$(CONFIG_WMV2_DECODER)            += wmv2dec.o wmv2.o wmv2data.o \
+                                          msmpeg4dec.o msmpeg4.o msmpeg4data.o
+OBJS-$(CONFIG_WMV2_ENCODER)            += wmv2enc.o wmv2.o wmv2data.o \
+                                          msmpeg4.o msmpeg4enc.o msmpeg4data.o
+OBJS-$(CONFIG_WNV1_DECODER)            += wnv1.o
+OBJS-$(CONFIG_WRAPPED_AVFRAME_DECODER) += wrapped_avframe.o
+OBJS-$(CONFIG_WRAPPED_AVFRAME_ENCODER) += wrapped_avframe.o
+OBJS-$(CONFIG_WS_SND1_DECODER)         += ws-snd1.o
+OBJS-$(CONFIG_XAN_DPCM_DECODER)        += dpcm.o
+OBJS-$(CONFIG_XAN_WC3_DECODER)         += xan.o
+OBJS-$(CONFIG_XAN_WC4_DECODER)         += xxan.o
+OBJS-$(CONFIG_XBIN_DECODER)            += bintext.o cga_data.o
+OBJS-$(CONFIG_XBM_DECODER)             += xbmdec.o
+OBJS-$(CONFIG_XBM_ENCODER)             += xbmenc.o
+OBJS-$(CONFIG_XFACE_DECODER)           += xfacedec.o xface.o
+OBJS-$(CONFIG_XFACE_ENCODER)           += xfaceenc.o xface.o
+OBJS-$(CONFIG_XL_DECODER)              += xl.o
+OBJS-$(CONFIG_XMA1_DECODER)            += wmaprodec.o wma.o wma_common.o
+OBJS-$(CONFIG_XMA2_DECODER)            += wmaprodec.o wma.o wma_common.o
+OBJS-$(CONFIG_XPM_DECODER)             += xpmdec.o
+OBJS-$(CONFIG_XSUB_DECODER)            += xsubdec.o
+OBJS-$(CONFIG_XSUB_ENCODER)            += xsubenc.o
+OBJS-$(CONFIG_XWD_DECODER)             += xwddec.o
+OBJS-$(CONFIG_XWD_ENCODER)             += xwdenc.o
+OBJS-$(CONFIG_Y41P_DECODER)            += y41pdec.o
+OBJS-$(CONFIG_Y41P_ENCODER)            += y41penc.o
+OBJS-$(CONFIG_YLC_DECODER)             += ylc.o
+OBJS-$(CONFIG_YOP_DECODER)             += yop.o
+OBJS-$(CONFIG_YUV4_DECODER)            += yuv4dec.o
+OBJS-$(CONFIG_YUV4_ENCODER)            += yuv4enc.o
+OBJS-$(CONFIG_ZEROCODEC_DECODER)       += zerocodec.o
+OBJS-$(CONFIG_ZLIB_DECODER)            += lcldec.o
+OBJS-$(CONFIG_ZLIB_ENCODER)            += lclenc.o
+OBJS-$(CONFIG_ZMBV_DECODER)            += zmbv.o
+OBJS-$(CONFIG_ZMBV_ENCODER)            += zmbvenc.o
+
+# (AD)PCM decoders/encoders
+OBJS-$(CONFIG_PCM_ALAW_DECODER)           += pcm.o
+OBJS-$(CONFIG_PCM_ALAW_ENCODER)           += pcm.o
+OBJS-$(CONFIG_PCM_BLURAY_DECODER)         += pcm-bluray.o
+OBJS-$(CONFIG_PCM_DVD_DECODER)            += pcm-dvd.o
+OBJS-$(CONFIG_PCM_DVD_ENCODER)            += pcm-dvdenc.o
+OBJS-$(CONFIG_PCM_F16LE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_F24LE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_F32BE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_F32BE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_F32LE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_F32LE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_F64BE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_F64BE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_F64LE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_F64LE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_LXF_DECODER)            += pcm.o
+OBJS-$(CONFIG_PCM_MULAW_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_MULAW_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S8_DECODER)             += pcm.o
+OBJS-$(CONFIG_PCM_S8_ENCODER)             += pcm.o
+OBJS-$(CONFIG_PCM_S8_PLANAR_DECODER)      += pcm.o
+OBJS-$(CONFIG_PCM_S8_PLANAR_ENCODER)      += pcm.o
+OBJS-$(CONFIG_PCM_S16BE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S16BE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S16BE_PLANAR_DECODER)   += pcm.o
+OBJS-$(CONFIG_PCM_S16BE_PLANAR_ENCODER)   += pcm.o
+OBJS-$(CONFIG_PCM_S16LE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S16LE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S16LE_PLANAR_DECODER)   += pcm.o
+OBJS-$(CONFIG_PCM_S16LE_PLANAR_ENCODER)   += pcm.o
+OBJS-$(CONFIG_PCM_S24BE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S24BE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S24DAUD_DECODER)        += pcm.o
+OBJS-$(CONFIG_PCM_S24DAUD_ENCODER)        += pcm.o
+OBJS-$(CONFIG_PCM_S24LE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S24LE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S24LE_PLANAR_DECODER)   += pcm.o
+OBJS-$(CONFIG_PCM_S24LE_PLANAR_ENCODER)   += pcm.o
+OBJS-$(CONFIG_PCM_S32BE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S32BE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S32LE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S32LE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S32LE_PLANAR_DECODER)   += pcm.o
+OBJS-$(CONFIG_PCM_S32LE_PLANAR_ENCODER)   += pcm.o
+OBJS-$(CONFIG_PCM_S64BE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S64BE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S64LE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S64LE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_U8_DECODER)             += pcm.o
+OBJS-$(CONFIG_PCM_U8_ENCODER)             += pcm.o
+OBJS-$(CONFIG_PCM_U16BE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_U16BE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_U16LE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_U16LE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_U24BE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_U24BE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_U24LE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_U24LE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_U32BE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_U32BE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_U32LE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_U32LE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_VIDC_DECODER)           += pcm.o
+OBJS-$(CONFIG_PCM_VIDC_ENCODER)           += pcm.o
+OBJS-$(CONFIG_PCM_ZORK_DECODER)           += pcm.o
+
+OBJS-$(CONFIG_ADPCM_4XM_DECODER)          += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_ADX_DECODER)          += adxdec.o adx.o
+OBJS-$(CONFIG_ADPCM_ADX_ENCODER)          += adxenc.o adx.o
+OBJS-$(CONFIG_ADPCM_AFC_DECODER)          += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_AGM_DECODER)          += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_AICA_DECODER)         += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_CT_DECODER)           += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_DTK_DECODER)          += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_EA_DECODER)           += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_EA_MAXIS_XA_DECODER)  += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_EA_R1_DECODER)        += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_EA_R2_DECODER)        += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_EA_R3_DECODER)        += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_EA_XAS_DECODER)       += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_G722_DECODER)         += g722.o g722dsp.o g722dec.o
+OBJS-$(CONFIG_ADPCM_G722_ENCODER)         += g722.o g722dsp.o g722enc.o
+OBJS-$(CONFIG_ADPCM_G726_DECODER)         += g726.o
+OBJS-$(CONFIG_ADPCM_G726_ENCODER)         += g726.o
+OBJS-$(CONFIG_ADPCM_G726LE_DECODER)       += g726.o
+OBJS-$(CONFIG_ADPCM_G726LE_ENCODER)       += g726.o
+OBJS-$(CONFIG_ADPCM_IMA_AMV_DECODER)      += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_APC_DECODER)      += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_DAT4_DECODER)     += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_DK3_DECODER)      += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_DK4_DECODER)      += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_EA_EACS_DECODER)  += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_EA_SEAD_DECODER)  += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_ISS_DECODER)      += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_OKI_DECODER)      += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_QT_DECODER)       += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_QT_ENCODER)       += adpcmenc.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_RAD_DECODER)      += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_SMJPEG_DECODER)   += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_WAV_DECODER)      += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_WAV_ENCODER)      += adpcmenc.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_IMA_WS_DECODER)       += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_MS_DECODER)           += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_MS_ENCODER)           += adpcmenc.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_MTAF_DECODER)         += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_PSX_DECODER)          += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_SBPRO_2_DECODER)      += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_SBPRO_3_DECODER)      += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_SBPRO_4_DECODER)      += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_SWF_DECODER)          += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_SWF_ENCODER)          += adpcmenc.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_THP_DECODER)          += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_THP_LE_DECODER)       += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_VIMA_DECODER)         += vima.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_XA_DECODER)           += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_YAMAHA_DECODER)       += adpcm.o adpcm_data.o
+OBJS-$(CONFIG_ADPCM_YAMAHA_ENCODER)       += adpcmenc.o adpcm_data.o
+
+# hardware accelerators
+OBJS-$(CONFIG_D3D11VA)                    += dxva2.o
+OBJS-$(CONFIG_DXVA2)                      += dxva2.o
+OBJS-$(CONFIG_NVDEC)                      += nvdec.o
+OBJS-$(CONFIG_VAAPI)                      += vaapi_decode.o
+OBJS-$(CONFIG_VIDEOTOOLBOX)               += videotoolbox.o
+OBJS-$(CONFIG_VDPAU)                      += vdpau.o
+
+OBJS-$(CONFIG_H263_VAAPI_HWACCEL)         += vaapi_mpeg4.o
+OBJS-$(CONFIG_H263_VIDEOTOOLBOX_HWACCEL)  += videotoolbox.o
+OBJS-$(CONFIG_H264_D3D11VA_HWACCEL)       += dxva2_h264.o
+OBJS-$(CONFIG_H264_DXVA2_HWACCEL)         += dxva2_h264.o
+OBJS-$(CONFIG_H264_NVDEC_HWACCEL)         += nvdec_h264.o
+OBJS-$(CONFIG_H264_QSV_HWACCEL)           += qsvdec_h2645.o
+OBJS-$(CONFIG_H264_VAAPI_HWACCEL)         += vaapi_h264.o
+OBJS-$(CONFIG_H264_VDPAU_HWACCEL)         += vdpau_h264.o
+OBJS-$(CONFIG_H264_VIDEOTOOLBOX_HWACCEL)  += videotoolbox.o
+OBJS-$(CONFIG_HEVC_D3D11VA_HWACCEL)       += dxva2_hevc.o
+OBJS-$(CONFIG_HEVC_DXVA2_HWACCEL)         += dxva2_hevc.o
+OBJS-$(CONFIG_HEVC_NVDEC_HWACCEL)         += nvdec_hevc.o
+OBJS-$(CONFIG_HEVC_QSV_HWACCEL)           += qsvdec_h2645.o
+OBJS-$(CONFIG_HEVC_VAAPI_HWACCEL)         += vaapi_hevc.o
+OBJS-$(CONFIG_HEVC_VDPAU_HWACCEL)         += vdpau_hevc.o
+OBJS-$(CONFIG_MJPEG_NVDEC_HWACCEL)        += nvdec_mjpeg.o
+OBJS-$(CONFIG_MJPEG_VAAPI_HWACCEL)        += vaapi_mjpeg.o
+OBJS-$(CONFIG_MPEG1_NVDEC_HWACCEL)        += nvdec_mpeg12.o
+OBJS-$(CONFIG_MPEG1_VDPAU_HWACCEL)        += vdpau_mpeg12.o
+OBJS-$(CONFIG_MPEG1_VIDEOTOOLBOX_HWACCEL) += videotoolbox.o
+OBJS-$(CONFIG_MPEG1_XVMC_HWACCEL)         += mpegvideo_xvmc.o
+OBJS-$(CONFIG_MPEG2_D3D11VA_HWACCEL)      += dxva2_mpeg2.o
+OBJS-$(CONFIG_MPEG2_DXVA2_HWACCEL)        += dxva2_mpeg2.o
+OBJS-$(CONFIG_MPEG2_NVDEC_HWACCEL)        += nvdec_mpeg12.o
+OBJS-$(CONFIG_MPEG2_QSV_HWACCEL)          += qsvdec_other.o
+OBJS-$(CONFIG_MPEG2_VAAPI_HWACCEL)        += vaapi_mpeg2.o
+OBJS-$(CONFIG_MPEG2_VDPAU_HWACCEL)        += vdpau_mpeg12.o
+OBJS-$(CONFIG_MPEG2_VIDEOTOOLBOX_HWACCEL) += videotoolbox.o
+OBJS-$(CONFIG_MPEG2_XVMC_HWACCEL)         += mpegvideo_xvmc.o
+OBJS-$(CONFIG_MPEG4_NVDEC_HWACCEL)        += nvdec_mpeg4.o
+OBJS-$(CONFIG_MPEG4_VAAPI_HWACCEL)        += vaapi_mpeg4.o
+OBJS-$(CONFIG_MPEG4_VDPAU_HWACCEL)        += vdpau_mpeg4.o
+OBJS-$(CONFIG_MPEG4_VIDEOTOOLBOX_HWACCEL) += videotoolbox.o
+OBJS-$(CONFIG_VC1_D3D11VA_HWACCEL)        += dxva2_vc1.o
+OBJS-$(CONFIG_VC1_DXVA2_HWACCEL)          += dxva2_vc1.o
+OBJS-$(CONFIG_VC1_NVDEC_HWACCEL)          += nvdec_vc1.o
+OBJS-$(CONFIG_VC1_QSV_HWACCEL)            += qsvdec_other.o
+OBJS-$(CONFIG_VC1_VAAPI_HWACCEL)          += vaapi_vc1.o
+OBJS-$(CONFIG_VC1_VDPAU_HWACCEL)          += vdpau_vc1.o
+OBJS-$(CONFIG_VP8_NVDEC_HWACCEL)          += nvdec_vp8.o
+OBJS-$(CONFIG_VP8_VAAPI_HWACCEL)          += vaapi_vp8.o
+OBJS-$(CONFIG_VP9_D3D11VA_HWACCEL)        += dxva2_vp9.o
+OBJS-$(CONFIG_VP9_DXVA2_HWACCEL)          += dxva2_vp9.o
+OBJS-$(CONFIG_VP9_NVDEC_HWACCEL)          += nvdec_vp9.o
+OBJS-$(CONFIG_VP9_VAAPI_HWACCEL)          += vaapi_vp9.o
+OBJS-$(CONFIG_VP8_QSV_HWACCEL)            += qsvdec_other.o
+
+# libavformat dependencies
+OBJS-$(CONFIG_ISO_MEDIA)               += mpeg4audio.o mpegaudiodata.o
+
+OBJS-$(CONFIG_ADTS_MUXER)              += mpeg4audio.o
+OBJS-$(CONFIG_CAF_DEMUXER)             += ac3tab.o
+OBJS-$(CONFIG_CODEC2_DEMUXER)          += codec2utils.o
+OBJS-$(CONFIG_CODEC2_MUXER)            += codec2utils.o
+OBJS-$(CONFIG_CODEC2RAW_DEMUXER)       += codec2utils.o
+OBJS-$(CONFIG_DNXHD_DEMUXER)           += dnxhddata.o
+OBJS-$(CONFIG_FITS_DEMUXER)            += fits.o
+OBJS-$(CONFIG_FLV_DEMUXER)             += mpeg4audio.o
+OBJS-$(CONFIG_LATM_MUXER)              += mpeg4audio.o
+OBJS-$(CONFIG_MATROSKA_AUDIO_MUXER)    += mpeg4audio.o
+OBJS-$(CONFIG_MATROSKA_MUXER)          += mpeg4audio.o
+OBJS-$(CONFIG_MOV_DEMUXER)             += ac3tab.o
+OBJS-$(CONFIG_MXF_MUXER)               += dnxhddata.o
+OBJS-$(CONFIG_NUT_MUXER)               += mpegaudiodata.o
+OBJS-$(CONFIG_NUT_DEMUXER)             += mpegaudiodata.o mpeg4audio.o
+OBJS-$(CONFIG_RTP_MUXER)               += mpeg4audio.o
+OBJS-$(CONFIG_SPDIF_MUXER)             += dca.o
+OBJS-$(CONFIG_TAK_DEMUXER)             += tak.o
+OBJS-$(CONFIG_WEBM_MUXER)              += mpeg4audio.o
+
+# libavfilter dependencies
+OBJS-$(CONFIG_ELBG_FILTER)             += elbg.o
+
+# external codec libraries
+OBJS-$(CONFIG_AAC_AT_DECODER)             += audiotoolboxdec.o
+OBJS-$(CONFIG_AC3_AT_DECODER)             += audiotoolboxdec.o
+OBJS-$(CONFIG_ADPCM_IMA_QT_AT_DECODER)    += audiotoolboxdec.o
+OBJS-$(CONFIG_ALAC_AT_DECODER)            += audiotoolboxdec.o
+OBJS-$(CONFIG_AMR_NB_AT_DECODER)          += audiotoolboxdec.o
+OBJS-$(CONFIG_EAC3_AT_DECODER)            += audiotoolboxdec.o
+OBJS-$(CONFIG_GSM_MS_AT_DECODER)          += audiotoolboxdec.o
+OBJS-$(CONFIG_ILBC_AT_DECODER)            += audiotoolboxdec.o
+OBJS-$(CONFIG_MP1_AT_DECODER)             += audiotoolboxdec.o
+OBJS-$(CONFIG_MP2_AT_DECODER)             += audiotoolboxdec.o
+OBJS-$(CONFIG_MP3_AT_DECODER)             += audiotoolboxdec.o
+OBJS-$(CONFIG_PCM_MULAW_AT_DECODER)       += audiotoolboxdec.o
+OBJS-$(CONFIG_PCM_ALAW_AT_DECODER)        += audiotoolboxdec.o
+OBJS-$(CONFIG_QDMC_AT_DECODER)            += audiotoolboxdec.o
+OBJS-$(CONFIG_QDM2_AT_DECODER)            += audiotoolboxdec.o
+OBJS-$(CONFIG_AAC_AT_ENCODER)             += audiotoolboxenc.o
+OBJS-$(CONFIG_ALAC_AT_ENCODER)            += audiotoolboxenc.o
+OBJS-$(CONFIG_ILBC_AT_ENCODER)            += audiotoolboxenc.o
+OBJS-$(CONFIG_PCM_ALAW_AT_ENCODER)        += audiotoolboxenc.o
+OBJS-$(CONFIG_PCM_MULAW_AT_ENCODER)       += audiotoolboxenc.o
+OBJS-$(CONFIG_LIBAOM_AV1_DECODER)         += libaomdec.o
+OBJS-$(CONFIG_LIBAOM_AV1_ENCODER)         += libaomenc.o
+OBJS-$(CONFIG_LIBARIBB24_DECODER)         += libaribb24.o ass.o
+OBJS-$(CONFIG_LIBCELT_DECODER)            += libcelt_dec.o
+OBJS-$(CONFIG_LIBCODEC2_DECODER)          += libcodec2.o codec2utils.o
+OBJS-$(CONFIG_LIBCODEC2_ENCODER)          += libcodec2.o codec2utils.o
+OBJS-$(CONFIG_LIBDAV1D_DECODER)           += libdav1d.o
+OBJS-$(CONFIG_LIBDAVS2_DECODER)           += libdavs2.o
+OBJS-$(CONFIG_LIBFDK_AAC_DECODER)         += libfdk-aacdec.o
+OBJS-$(CONFIG_LIBFDK_AAC_ENCODER)         += libfdk-aacenc.o
+OBJS-$(CONFIG_LIBGSM_DECODER)             += libgsmdec.o
+OBJS-$(CONFIG_LIBGSM_ENCODER)             += libgsmenc.o
+OBJS-$(CONFIG_LIBGSM_MS_DECODER)          += libgsmdec.o
+OBJS-$(CONFIG_LIBGSM_MS_ENCODER)          += libgsmenc.o
+OBJS-$(CONFIG_LIBILBC_DECODER)            += libilbc.o
+OBJS-$(CONFIG_LIBILBC_ENCODER)            += libilbc.o
+OBJS-$(CONFIG_LIBKVAZAAR_ENCODER)         += libkvazaar.o
+OBJS-$(CONFIG_LIBMP3LAME_ENCODER)         += libmp3lame.o
+OBJS-$(CONFIG_LIBOPENCORE_AMRNB_DECODER)  += libopencore-amr.o
+OBJS-$(CONFIG_LIBOPENCORE_AMRNB_ENCODER)  += libopencore-amr.o
+OBJS-$(CONFIG_LIBOPENCORE_AMRWB_DECODER)  += libopencore-amr.o
+OBJS-$(CONFIG_LIBOPENH264_DECODER)        += libopenh264dec.o libopenh264.o
+OBJS-$(CONFIG_LIBOPENH264_ENCODER)        += libopenh264enc.o libopenh264.o
+OBJS-$(CONFIG_LIBOPENJPEG_DECODER)        += libopenjpegdec.o
+OBJS-$(CONFIG_LIBOPENJPEG_ENCODER)        += libopenjpegenc.o
+OBJS-$(CONFIG_LIBOPUS_DECODER)            += libopusdec.o libopus.o     \
+                                             vorbis_data.o
+OBJS-$(CONFIG_LIBOPUS_ENCODER)            += libopusenc.o libopus.o     \
+                                             vorbis_data.o
+OBJS-$(CONFIG_LIBSHINE_ENCODER)           += libshine.o
+OBJS-$(CONFIG_LIBSPEEX_DECODER)           += libspeexdec.o
+OBJS-$(CONFIG_LIBSPEEX_ENCODER)           += libspeexenc.o
+OBJS-$(CONFIG_LIBTHEORA_ENCODER)          += libtheoraenc.o
+OBJS-$(CONFIG_LIBTWOLAME_ENCODER)         += libtwolame.o
+OBJS-$(CONFIG_LIBVO_AMRWBENC_ENCODER)     += libvo-amrwbenc.o
+OBJS-$(CONFIG_LIBVORBIS_DECODER)          += libvorbisdec.o
+OBJS-$(CONFIG_LIBVORBIS_ENCODER)          += libvorbisenc.o \
+                                             vorbis_data.o
+OBJS-$(CONFIG_LIBVPX_VP8_DECODER)         += libvpxdec.o
+OBJS-$(CONFIG_LIBVPX_VP8_ENCODER)         += libvpxenc.o
+OBJS-$(CONFIG_LIBVPX_VP9_DECODER)         += libvpxdec.o libvpx.o
+OBJS-$(CONFIG_LIBVPX_VP9_ENCODER)         += libvpxenc.o libvpx.o
+OBJS-$(CONFIG_LIBWAVPACK_ENCODER)         += libwavpackenc.o
+OBJS-$(CONFIG_LIBWEBP_ENCODER)            += libwebpenc_common.o libwebpenc.o
+OBJS-$(CONFIG_LIBWEBP_ANIM_ENCODER)       += libwebpenc_common.o libwebpenc_animencoder.o
+OBJS-$(CONFIG_LIBX262_ENCODER)            += libx264.o
+OBJS-$(CONFIG_LIBX264_ENCODER)            += libx264.o
+OBJS-$(CONFIG_LIBX265_ENCODER)            += libx265.o
+OBJS-$(CONFIG_LIBXAVS_ENCODER)            += libxavs.o
+OBJS-$(CONFIG_LIBXAVS2_ENCODER)           += libxavs2.o
+OBJS-$(CONFIG_LIBXVID_ENCODER)            += libxvid.o
+OBJS-$(CONFIG_LIBZVBI_TELETEXT_DECODER)   += libzvbi-teletextdec.o ass.o
+
+# parsers
+OBJS-$(CONFIG_AAC_LATM_PARSER)         += latm_parser.o
+OBJS-$(CONFIG_AAC_PARSER)              += aac_parser.o aac_ac3_parser.o \
+                                          mpeg4audio.o
+OBJS-$(CONFIG_AC3_PARSER)              += ac3tab.o aac_ac3_parser.o
+OBJS-$(CONFIG_ADX_PARSER)              += adx_parser.o adx.o
+OBJS-$(CONFIG_AV1_PARSER)              += av1_parser.o av1_parse.o
+OBJS-$(CONFIG_AVS2_PARSER)             += avs2_parser.o
+OBJS-$(CONFIG_BMP_PARSER)              += bmp_parser.o
+OBJS-$(CONFIG_CAVSVIDEO_PARSER)        += cavs_parser.o
+OBJS-$(CONFIG_COOK_PARSER)             += cook_parser.o
+OBJS-$(CONFIG_DCA_PARSER)              += dca_parser.o dca_exss.o dca.o
+OBJS-$(CONFIG_DIRAC_PARSER)            += dirac_parser.o
+OBJS-$(CONFIG_DNXHD_PARSER)            += dnxhd_parser.o dnxhddata.o
+OBJS-$(CONFIG_DPX_PARSER)              += dpx_parser.o
+OBJS-$(CONFIG_DVAUDIO_PARSER)          += dvaudio_parser.o
+OBJS-$(CONFIG_DVBSUB_PARSER)           += dvbsub_parser.o
+OBJS-$(CONFIG_DVD_NAV_PARSER)          += dvd_nav_parser.o
+OBJS-$(CONFIG_DVDSUB_PARSER)           += dvdsub_parser.o
+OBJS-$(CONFIG_FLAC_PARSER)             += flac_parser.o flacdata.o flac.o \
+                                          vorbis_data.o
+OBJS-$(CONFIG_G723_1_PARSER)           += g723_1_parser.o
+OBJS-$(CONFIG_G729_PARSER)             += g729_parser.o
+OBJS-$(CONFIG_GIF_PARSER)              += gif_parser.o
+OBJS-$(CONFIG_GSM_PARSER)              += gsm_parser.o
+OBJS-$(CONFIG_H261_PARSER)             += h261_parser.o
+OBJS-$(CONFIG_H263_PARSER)             += h263_parser.o
+OBJS-$(CONFIG_H264_PARSER)             += h264_parser.o h264_sei.o h264data.o
+OBJS-$(CONFIG_HEVC_PARSER)             += hevc_parser.o hevc_data.o
+OBJS-$(CONFIG_MJPEG_PARSER)            += mjpeg_parser.o
+OBJS-$(CONFIG_MLP_PARSER)              += mlp_parse.o mlp_parser.o mlp.o
+OBJS-$(CONFIG_MPEG4VIDEO_PARSER)       += mpeg4video_parser.o h263.o \
+                                          mpeg4videodec.o mpeg4video.o \
+                                          ituh263dec.o h263dec.o h263data.o
+OBJS-$(CONFIG_PNG_PARSER)              += png_parser.o
+OBJS-$(CONFIG_MPEGAUDIO_PARSER)        += mpegaudio_parser.o
+OBJS-$(CONFIG_MPEGVIDEO_PARSER)        += mpegvideo_parser.o    \
+                                          mpeg12.o mpeg12data.o
+OBJS-$(CONFIG_OPUS_PARSER)             += opus_parser.o opus.o opustab.o \
+                                          opus_rc.o vorbis_data.o
+OBJS-$(CONFIG_PNG_PARSER)              += png_parser.o
+OBJS-$(CONFIG_PNM_PARSER)              += pnm_parser.o pnm.o
+OBJS-$(CONFIG_RV30_PARSER)             += rv34_parser.o
+OBJS-$(CONFIG_RV40_PARSER)             += rv34_parser.o
+OBJS-$(CONFIG_SBC_PARSER)              += sbc_parser.o
+OBJS-$(CONFIG_SIPR_PARSER)             += sipr_parser.o
+OBJS-$(CONFIG_TAK_PARSER)              += tak_parser.o tak.o
+OBJS-$(CONFIG_VC1_PARSER)              += vc1_parser.o vc1.o vc1data.o  \
+                                          simple_idct.o wmv2data.o
+OBJS-$(CONFIG_VP3_PARSER)              += vp3_parser.o
+OBJS-$(CONFIG_VP8_PARSER)              += vp8_parser.o
+OBJS-$(CONFIG_VP9_PARSER)              += vp9_parser.o
+OBJS-$(CONFIG_XMA_PARSER)              += xma_parser.o
+
+# bitstream filters
+OBJS-$(CONFIG_AAC_ADTSTOASC_BSF)          += aac_adtstoasc_bsf.o mpeg4audio.o
+OBJS-$(CONFIG_AV1_METADATA_BSF)           += av1_metadata_bsf.o
+OBJS-$(CONFIG_AV1_FRAME_SPLIT_BSF)        += av1_frame_split_bsf.o
+OBJS-$(CONFIG_CHOMP_BSF)                  += chomp_bsf.o
+OBJS-$(CONFIG_DUMP_EXTRADATA_BSF)         += dump_extradata_bsf.o
+OBJS-$(CONFIG_DCA_CORE_BSF)               += dca_core_bsf.o
+OBJS-$(CONFIG_EAC3_CORE_BSF)              += eac3_core_bsf.o
+OBJS-$(CONFIG_EXTRACT_EXTRADATA_BSF)      += extract_extradata_bsf.o    \
+                                             av1_parse.o h2645_parse.o
+OBJS-$(CONFIG_FILTER_UNITS_BSF)           += filter_units_bsf.o
+OBJS-$(CONFIG_H264_METADATA_BSF)          += h264_metadata_bsf.o h264_levels.o
+OBJS-$(CONFIG_H264_MP4TOANNEXB_BSF)       += h264_mp4toannexb_bsf.o
+OBJS-$(CONFIG_H264_REDUNDANT_PPS_BSF)     += h264_redundant_pps_bsf.o
+OBJS-$(CONFIG_HAPQA_EXTRACT_BSF)          += hapqa_extract_bsf.o hap.o
+OBJS-$(CONFIG_HEVC_METADATA_BSF)          += h265_metadata_bsf.o h265_profile_level.o
+OBJS-$(CONFIG_HEVC_MP4TOANNEXB_BSF)       += hevc_mp4toannexb_bsf.o
+OBJS-$(CONFIG_IMX_DUMP_HEADER_BSF)        += imx_dump_header_bsf.o
+OBJS-$(CONFIG_MJPEG2JPEG_BSF)             += mjpeg2jpeg_bsf.o
+OBJS-$(CONFIG_MJPEGA_DUMP_HEADER_BSF)     += mjpega_dump_header_bsf.o
+OBJS-$(CONFIG_MPEG4_UNPACK_BFRAMES_BSF)   += mpeg4_unpack_bframes_bsf.o
+OBJS-$(CONFIG_MOV2TEXTSUB_BSF)            += movsub_bsf.o
+OBJS-$(CONFIG_MP3_HEADER_DECOMPRESS_BSF)  += mp3_header_decompress_bsf.o \
+                                             mpegaudiodata.o
+OBJS-$(CONFIG_MPEG2_METADATA_BSF)         += mpeg2_metadata_bsf.o
+OBJS-$(CONFIG_NOISE_BSF)                  += noise_bsf.o
+OBJS-$(CONFIG_NULL_BSF)                   += null_bsf.o
+OBJS-$(CONFIG_PRORES_METADATA_BSF)        += prores_metadata_bsf.o
+OBJS-$(CONFIG_REMOVE_EXTRADATA_BSF)       += remove_extradata_bsf.o
+OBJS-$(CONFIG_TEXT2MOVSUB_BSF)            += movsub_bsf.o
+OBJS-$(CONFIG_TRACE_HEADERS_BSF)          += trace_headers_bsf.o
+OBJS-$(CONFIG_TRUEHD_CORE_BSF)            += truehd_core_bsf.o mlp_parse.o mlp.o
+OBJS-$(CONFIG_VP9_METADATA_BSF)           += vp9_metadata_bsf.o
+OBJS-$(CONFIG_VP9_RAW_REORDER_BSF)        += vp9_raw_reorder_bsf.o
+OBJS-$(CONFIG_VP9_SUPERFRAME_BSF)         += vp9_superframe_bsf.o
+OBJS-$(CONFIG_VP9_SUPERFRAME_SPLIT_BSF)   += vp9_superframe_split_bsf.o
+
+# thread libraries
+OBJS-$(HAVE_LIBC_MSVCRT)               += file_open.o
+OBJS-$(HAVE_THREADS)                   += pthread.o pthread_slice.o pthread_frame.o
+
+OBJS-$(CONFIG_FRAME_THREAD_ENCODER)    += frame_thread_encoder.o
+
+# Windows resource file
+SLIBOBJS-$(HAVE_GNU_WINDRES)           += avcodecres.o
+
+SKIPHEADERS                            += %_tablegen.h                  \
+                                          %_tables.h                    \
+                                          fft-internal.h                \
+                                          tableprint.h                  \
+                                          tableprint_vlc.h              \
+                                          aaccoder_twoloop.h            \
+                                          aaccoder_trellis.h            \
+                                          aacenc_quantization.h         \
+                                          aacenc_quantization_misc.h    \
+                                          $(ARCH)/vp56_arith.h          \
+
+SKIPHEADERS-$(CONFIG_AMF)              += amfenc.h
+SKIPHEADERS-$(CONFIG_D3D11VA)          += d3d11va.h dxva2_internal.h
+SKIPHEADERS-$(CONFIG_DXVA2)            += dxva2.h dxva2_internal.h
+SKIPHEADERS-$(CONFIG_JNI)              += ffjni.h
+SKIPHEADERS-$(CONFIG_LIBVPX)           += libvpx.h
+SKIPHEADERS-$(CONFIG_LIBWEBP_ENCODER)  += libwebpenc_common.h
+SKIPHEADERS-$(CONFIG_MEDIACODEC)       += mediacodecdec_common.h mediacodec_surface.h mediacodec_wrapper.h mediacodec_sw_buffer.h
+SKIPHEADERS-$(CONFIG_NVDEC)            += nvdec.h
+SKIPHEADERS-$(CONFIG_NVENC)            += nvenc.h
+SKIPHEADERS-$(CONFIG_QSV)              += qsv.h qsv_internal.h
+SKIPHEADERS-$(CONFIG_QSVDEC)           += qsvdec.h
+SKIPHEADERS-$(CONFIG_QSVENC)           += qsvenc.h
+SKIPHEADERS-$(CONFIG_XVMC)             += xvmc.h
+SKIPHEADERS-$(CONFIG_VAAPI)            += vaapi_decode.h vaapi_encode.h
+SKIPHEADERS-$(CONFIG_VDPAU)            += vdpau.h vdpau_internal.h
+SKIPHEADERS-$(CONFIG_VIDEOTOOLBOX)     += videotoolbox.h vt_internal.h
+SKIPHEADERS-$(CONFIG_V4L2_M2M)         += v4l2_buffers.h v4l2_context.h v4l2_m2m.h
+
+TESTPROGS = avpacket                                                    \
+            celp_math                                                   \
+            codec_desc                                                  \
+            htmlsubtitles                                               \
+            imgconvert                                                  \
+            jpeg2000dwt                                                 \
+            mathops                                                    \
+            options                                                     \
+            mjpegenc_huffman                                            \
+            utils                                                       \
+
+TESTPROGS-$(CONFIG_CABAC)                 += cabac
+TESTPROGS-$(CONFIG_DCT)                   += avfft
+TESTPROGS-$(CONFIG_FFT)                   += fft fft-fixed fft-fixed32
+TESTPROGS-$(CONFIG_GOLOMB)                += golomb
+TESTPROGS-$(CONFIG_IDCTDSP)               += dct
+TESTPROGS-$(CONFIG_IIRFILTER)             += iirfilter
+TESTPROGS-$(HAVE_MMX)                     += motion
+TESTPROGS-$(CONFIG_MPEGVIDEO)             += mpeg12framerate
+TESTPROGS-$(CONFIG_H264_METADATA_BSF)     += h264_levels
+TESTPROGS-$(CONFIG_HEVC_METADATA_BSF)     += h265_levels
+TESTPROGS-$(CONFIG_RANGECODER)            += rangecoder
+TESTPROGS-$(CONFIG_SNOW_ENCODER)          += snowenc
+
+TESTOBJS = dctref.o
+
+TOOLS = fourcc2pixfmt
+
+HOSTPROGS = aacps_tablegen                                              \
+            aacps_fixed_tablegen                                        \
+            cbrt_tablegen                                               \
+            cbrt_fixed_tablegen                                         \
+            cos_tablegen                                                \
+            dv_tablegen                                                 \
+            motionpixels_tablegen                                       \
+            mpegaudio_tablegen                                          \
+            pcm_tablegen                                                \
+            qdm2_tablegen                                               \
+            sinewin_tablegen                                            \
+            sinewin_fixed_tablegen                                      \
+
+CLEANFILES = *_tables.c *_tables.h *_tablegen$(HOSTEXESUF)
+
+$(SUBDIR)tests/dct$(EXESUF): $(SUBDIR)dctref.o $(SUBDIR)aandcttab.o
+$(SUBDIR)dv_tablegen$(HOSTEXESUF): $(SUBDIR)dvdata_host.o
+
+TRIG_TABLES  = cos cos_fixed sin
+TRIG_TABLES := $(TRIG_TABLES:%=$(SUBDIR)%_tables.c)
+
+$(TRIG_TABLES): $(SUBDIR)%_tables.c: $(SUBDIR)cos_tablegen$(HOSTEXESUF)
+	$(M)./$< $* > $@
+
+ifdef CONFIG_SMALL
+$(SUBDIR)%_tablegen$(HOSTEXESUF): HOSTCFLAGS += -DCONFIG_SMALL=1
+else
+$(SUBDIR)%_tablegen$(HOSTEXESUF): HOSTCFLAGS += -DCONFIG_SMALL=0
+endif
+
+GEN_HEADERS = cbrt_tables.h cbrt_fixed_tables.h aacps_tables.h aacps_fixed_tables.h \
+              dv_tables.h     \
+              sinewin_tables.h sinewin_fixed_tables.h mpegaudio_tables.h motionpixels_tables.h \
+              pcm_tables.h qdm2_tables.h
+GEN_HEADERS := $(addprefix $(SUBDIR), $(GEN_HEADERS))
+
+$(GEN_HEADERS): $(SUBDIR)%_tables.h: $(SUBDIR)%_tablegen$(HOSTEXESUF)
+	$(M)./$< > $@
+
+ifdef CONFIG_HARDCODED_TABLES
+$(SUBDIR)cbrt_data.o: $(SUBDIR)cbrt_tables.h
+$(SUBDIR)cbrt_data_fixed.o: $(SUBDIR)cbrt_fixed_tables.h
+$(SUBDIR)aacps_float.o: $(SUBDIR)aacps_tables.h
+$(SUBDIR)aacps_fixed.o: $(SUBDIR)aacps_fixed_tables.h
+$(SUBDIR)aactab_fixed.o: $(SUBDIR)aac_fixed_tables.h
+$(SUBDIR)dvenc.o: $(SUBDIR)dv_tables.h
+$(SUBDIR)motionpixels.o: $(SUBDIR)motionpixels_tables.h
+$(SUBDIR)mpegaudiodec_fixed.o: $(SUBDIR)mpegaudio_tables.h
+$(SUBDIR)mpegaudiodec_float.o: $(SUBDIR)mpegaudio_tables.h
+$(SUBDIR)pcm.o: $(SUBDIR)pcm_tables.h
+$(SUBDIR)qdm2.o: $(SUBDIR)qdm2_tables.h
+$(SUBDIR)sinewin.o: $(SUBDIR)sinewin_tables.h
+$(SUBDIR)sinewin_fixed.o: $(SUBDIR)sinewin_fixed_tables.h
+endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac.h
new file mode 100644
index 000000000..c2b9c980c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac.h
@@ -0,0 +1,377 @@
+/*
+ * AAC definitions and structures
+ * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
+ * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC definitions and structures
+ * @author Oded Shimon  ( ods15 ods15 dyndns org )
+ * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
+ */
+
+#ifndef AVCODEC_AAC_H
+#define AVCODEC_AAC_H
+
+
+#include "aac_defines.h"
+#include "libavutil/float_dsp.h"
+#include "libavutil/fixed_dsp.h"
+#include "avcodec.h"
+#if !USE_FIXED
+#include "mdct15.h"
+#endif
+#include "fft.h"
+#include "mpeg4audio.h"
+#include "sbr.h"
+
+#include <stdint.h>
+
+#define MAX_CHANNELS 64
+#define MAX_ELEM_ID 16
+
+#define TNS_MAX_ORDER 20
+#define MAX_LTP_LONG_SFB 40
+
+#define CLIP_AVOIDANCE_FACTOR 0.95f
+
+enum RawDataBlockType {
+    TYPE_SCE,
+    TYPE_CPE,
+    TYPE_CCE,
+    TYPE_LFE,
+    TYPE_DSE,
+    TYPE_PCE,
+    TYPE_FIL,
+    TYPE_END,
+};
+
+enum ExtensionPayloadID {
+    EXT_FILL,
+    EXT_FILL_DATA,
+    EXT_DATA_ELEMENT,
+    EXT_DYNAMIC_RANGE = 0xb,
+    EXT_SBR_DATA      = 0xd,
+    EXT_SBR_DATA_CRC  = 0xe,
+};
+
+enum WindowSequence {
+    ONLY_LONG_SEQUENCE,
+    LONG_START_SEQUENCE,
+    EIGHT_SHORT_SEQUENCE,
+    LONG_STOP_SEQUENCE,
+};
+
+enum BandType {
+    ZERO_BT        = 0,     ///< Scalefactors and spectral data are all zero.
+    FIRST_PAIR_BT  = 5,     ///< This and later band types encode two values (rather than four) with one code word.
+    ESC_BT         = 11,    ///< Spectral data are coded with an escape sequence.
+    RESERVED_BT    = 12,    ///< Band types following are encoded differently from others.
+    NOISE_BT       = 13,    ///< Spectral data are scaled white noise not coded in the bitstream.
+    INTENSITY_BT2  = 14,    ///< Scalefactor data are intensity stereo positions (out of phase).
+    INTENSITY_BT   = 15,    ///< Scalefactor data are intensity stereo positions (in phase).
+};
+
+#define IS_CODEBOOK_UNSIGNED(x) (((x) - 1) & 10)
+
+enum ChannelPosition {
+    AAC_CHANNEL_OFF   = 0,
+    AAC_CHANNEL_FRONT = 1,
+    AAC_CHANNEL_SIDE  = 2,
+    AAC_CHANNEL_BACK  = 3,
+    AAC_CHANNEL_LFE   = 4,
+    AAC_CHANNEL_CC    = 5,
+};
+
+/**
+ * The point during decoding at which channel coupling is applied.
+ */
+enum CouplingPoint {
+    BEFORE_TNS,
+    BETWEEN_TNS_AND_IMDCT,
+    AFTER_IMDCT = 3,
+};
+
+/**
+ * Output configuration status
+ */
+enum OCStatus {
+    OC_NONE,        ///< Output unconfigured
+    OC_TRIAL_PCE,   ///< Output configuration under trial specified by an inband PCE
+    OC_TRIAL_FRAME, ///< Output configuration under trial specified by a frame header
+    OC_GLOBAL_HDR,  ///< Output configuration set in a global header but not yet locked
+    OC_LOCKED,      ///< Output configuration locked in place
+};
+
+typedef struct OutputConfiguration {
+    MPEG4AudioConfig m4ac;
+    uint8_t layout_map[MAX_ELEM_ID*4][3];
+    int layout_map_tags;
+    int channels;
+    uint64_t channel_layout;
+    enum OCStatus status;
+} OutputConfiguration;
+
+/**
+ * Predictor State
+ */
+typedef struct PredictorState {
+    AAC_FLOAT cor0;
+    AAC_FLOAT cor1;
+    AAC_FLOAT var0;
+    AAC_FLOAT var1;
+    AAC_FLOAT r0;
+    AAC_FLOAT r1;
+    AAC_FLOAT k1;
+    AAC_FLOAT x_est;
+} PredictorState;
+
+#define MAX_PREDICTORS 672
+
+#define SCALE_DIV_512    36    ///< scalefactor difference that corresponds to scale difference in 512 times
+#define SCALE_ONE_POS   140    ///< scalefactor index that corresponds to scale=1.0
+#define SCALE_MAX_POS   255    ///< scalefactor index maximum value
+#define SCALE_MAX_DIFF   60    ///< maximum scalefactor difference allowed by standard
+#define SCALE_DIFF_ZERO  60    ///< codebook index corresponding to zero scalefactor indices difference
+
+#define POW_SF2_ZERO    200    ///< ff_aac_pow2sf_tab index corresponding to pow(2, 0);
+
+#define NOISE_PRE       256    ///< preamble for NOISE_BT, put in bitstream with the first noise band
+#define NOISE_PRE_BITS    9    ///< length of preamble
+#define NOISE_OFFSET     90    ///< subtracted from global gain, used as offset for the preamble
+
+/**
+ * Long Term Prediction
+ */
+typedef struct LongTermPrediction {
+    int8_t present;
+    int16_t lag;
+    int coef_idx;
+    INTFLOAT coef;
+    int8_t used[MAX_LTP_LONG_SFB];
+} LongTermPrediction;
+
+/**
+ * Individual Channel Stream
+ */
+typedef struct IndividualChannelStream {
+    uint8_t max_sfb;            ///< number of scalefactor bands per group
+    enum WindowSequence window_sequence[2];
+    uint8_t use_kb_window[2];   ///< If set, use Kaiser-Bessel window, otherwise use a sine window.
+    int num_window_groups;
+    uint8_t group_len[8];
+    LongTermPrediction ltp;
+    const uint16_t *swb_offset; ///< table of offsets to the lowest spectral coefficient of a scalefactor band, sfb, for a particular window
+    const uint8_t *swb_sizes;   ///< table of scalefactor band sizes for a particular window
+    int num_swb;                ///< number of scalefactor window bands
+    int num_windows;
+    int tns_max_bands;
+    int predictor_present;
+    int predictor_initialized;
+    int predictor_reset_group;
+    int predictor_reset_count[31];  ///< used by encoder to count prediction resets
+    uint8_t prediction_used[41];
+    uint8_t window_clipping[8]; ///< set if a certain window is near clipping
+    float clip_avoidance_factor; ///< set if any window is near clipping to the necessary atennuation factor to avoid it
+} IndividualChannelStream;
+
+/**
+ * Temporal Noise Shaping
+ */
+typedef struct TemporalNoiseShaping {
+    int present;
+    int n_filt[8];
+    int length[8][4];
+    int direction[8][4];
+    int order[8][4];
+    int coef_idx[8][4][TNS_MAX_ORDER];
+    INTFLOAT coef[8][4][TNS_MAX_ORDER];
+} TemporalNoiseShaping;
+
+/**
+ * Dynamic Range Control - decoded from the bitstream but not processed further.
+ */
+typedef struct DynamicRangeControl {
+    int pce_instance_tag;                           ///< Indicates with which program the DRC info is associated.
+    int dyn_rng_sgn[17];                            ///< DRC sign information; 0 - positive, 1 - negative
+    int dyn_rng_ctl[17];                            ///< DRC magnitude information
+    int exclude_mask[MAX_CHANNELS];                 ///< Channels to be excluded from DRC processing.
+    int band_incr;                                  ///< Number of DRC bands greater than 1 having DRC info.
+    int interpolation_scheme;                       ///< Indicates the interpolation scheme used in the SBR QMF domain.
+    int band_top[17];                               ///< Indicates the top of the i-th DRC band in units of 4 spectral lines.
+    int prog_ref_level;                             /**< A reference level for the long-term program audio level for all
+                                                     *   channels combined.
+                                                     */
+} DynamicRangeControl;
+
+typedef struct Pulse {
+    int num_pulse;
+    int start;
+    int pos[4];
+    int amp[4];
+} Pulse;
+
+/**
+ * coupling parameters
+ */
+typedef struct ChannelCoupling {
+    enum CouplingPoint coupling_point;  ///< The point during decoding at which coupling is applied.
+    int num_coupled;       ///< number of target elements
+    enum RawDataBlockType type[8];   ///< Type of channel element to be coupled - SCE or CPE.
+    int id_select[8];      ///< element id
+    int ch_select[8];      /**< [0] shared list of gains; [1] list of gains for right channel;
+                            *   [2] list of gains for left channel; [3] lists of gains for both channels
+                            */
+    INTFLOAT gain[16][120];
+} ChannelCoupling;
+
+/**
+ * Single Channel Element - used for both SCE and LFE elements.
+ */
+typedef struct SingleChannelElement {
+    IndividualChannelStream ics;
+    TemporalNoiseShaping tns;
+    Pulse pulse;
+    enum BandType band_type[128];                   ///< band types
+    enum BandType band_alt[128];                    ///< alternative band type (used by encoder)
+    int band_type_run_end[120];                     ///< band type run end points
+    INTFLOAT sf[120];                               ///< scalefactors
+    int sf_idx[128];                                ///< scalefactor indices (used by encoder)
+    uint8_t zeroes[128];                            ///< band is not coded (used by encoder)
+    uint8_t can_pns[128];                           ///< band is allowed to PNS (informative)
+    float  is_ener[128];                            ///< Intensity stereo pos (used by encoder)
+    float pns_ener[128];                            ///< Noise energy values (used by encoder)
+    DECLARE_ALIGNED(32, INTFLOAT, pcoeffs)[1024];   ///< coefficients for IMDCT, pristine
+    DECLARE_ALIGNED(32, INTFLOAT, coeffs)[1024];    ///< coefficients for IMDCT, maybe processed
+    DECLARE_ALIGNED(32, INTFLOAT, saved)[1536];     ///< overlap
+    DECLARE_ALIGNED(32, INTFLOAT, ret_buf)[2048];   ///< PCM output buffer
+    DECLARE_ALIGNED(16, INTFLOAT, ltp_state)[3072]; ///< time signal for LTP
+    DECLARE_ALIGNED(32, AAC_FLOAT, lcoeffs)[1024];  ///< MDCT of LTP coefficients (used by encoder)
+    DECLARE_ALIGNED(32, AAC_FLOAT, prcoeffs)[1024]; ///< Main prediction coefs (used by encoder)
+    PredictorState predictor_state[MAX_PREDICTORS];
+    INTFLOAT *ret;                                  ///< PCM output
+} SingleChannelElement;
+
+/**
+ * channel element - generic struct for SCE/CPE/CCE/LFE
+ */
+typedef struct ChannelElement {
+    int present;
+    // CPE specific
+    int common_window;        ///< Set if channels share a common 'IndividualChannelStream' in bitstream.
+    int     ms_mode;          ///< Signals mid/side stereo flags coding mode (used by encoder)
+    uint8_t is_mode;          ///< Set if any bands have been encoded using intensity stereo (used by encoder)
+    uint8_t ms_mask[128];     ///< Set if mid/side stereo is used for each scalefactor window band
+    uint8_t is_mask[128];     ///< Set if intensity stereo is used (used by encoder)
+    // shared
+    SingleChannelElement ch[2];
+    // CCE specific
+    ChannelCoupling coup;
+    SpectralBandReplication sbr;
+} ChannelElement;
+
+/**
+ * main AAC context
+ */
+struct AACContext {
+    AVClass        *class;
+    AVCodecContext *avctx;
+    AVFrame *frame;
+
+    int is_saved;                 ///< Set if elements have stored overlap from previous frame.
+    DynamicRangeControl che_drc;
+
+    /**
+     * @name Channel element related data
+     * @{
+     */
+    ChannelElement          *che[4][MAX_ELEM_ID];
+    ChannelElement  *tag_che_map[4][MAX_ELEM_ID];
+    int tags_mapped;
+    int warned_remapping_once;
+    /** @} */
+
+    /**
+     * @name temporary aligned temporary buffers
+     * (We do not want to have these on the stack.)
+     * @{
+     */
+    DECLARE_ALIGNED(32, INTFLOAT, buf_mdct)[1024];
+    /** @} */
+
+    /**
+     * @name Computed / set up during initialization
+     * @{
+     */
+    FFTContext mdct;
+    FFTContext mdct_small;
+    FFTContext mdct_ld;
+    FFTContext mdct_ltp;
+#if USE_FIXED
+    AVFixedDSPContext *fdsp;
+#else
+    MDCT15Context *mdct120;
+    MDCT15Context *mdct480;
+    MDCT15Context *mdct960;
+    AVFloatDSPContext *fdsp;
+#endif /* USE_FIXED */
+    int random_state;
+    /** @} */
+
+    /**
+     * @name Members used for output
+     * @{
+     */
+    SingleChannelElement *output_element[MAX_CHANNELS]; ///< Points to each SingleChannelElement
+    /** @} */
+
+
+    /**
+     * @name Japanese DTV specific extension
+     * @{
+     */
+    int force_dmono_mode;///< 0->not dmono, 1->use first channel, 2->use second channel
+    int dmono_mode;      ///< 0->not dmono, 1->use first channel, 2->use second channel
+    /** @} */
+
+    DECLARE_ALIGNED(32, INTFLOAT, temp)[128];
+
+    OutputConfiguration oc[2];
+    int warned_num_aac_frames;
+    int warned_960_sbr;
+
+    int warned_gain_control;
+
+    /* aacdec functions pointers */
+    void (*imdct_and_windowing)(AACContext *ac, SingleChannelElement *sce);
+    void (*apply_ltp)(AACContext *ac, SingleChannelElement *sce);
+    void (*apply_tns)(INTFLOAT coef[1024], TemporalNoiseShaping *tns,
+                      IndividualChannelStream *ics, int decode);
+    void (*windowing_and_mdct_ltp)(AACContext *ac, INTFLOAT *out,
+                                   INTFLOAT *in, IndividualChannelStream *ics);
+    void (*update_ltp)(AACContext *ac, SingleChannelElement *sce);
+    void (*vector_pow43)(int *coefs, int len);
+    void (*subband_scale)(int *dst, int *src, int scale, int offset, int len, void *log_context);
+
+};
+
+void ff_aacdec_init_mips(AACContext *c);
+
+#endif /* AVCODEC_AAC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_ac3_parser.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_ac3_parser.c
new file mode 100644
index 000000000..54e459844
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_ac3_parser.c
@@ -0,0 +1,105 @@
+/*
+ * Common AAC and AC-3 parser
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/channel_layout.h"
+#include "libavutil/common.h"
+#include "parser.h"
+#include "aac_ac3_parser.h"
+
+int ff_aac_ac3_parse(AVCodecParserContext *s1,
+                     AVCodecContext *avctx,
+                     const uint8_t **poutbuf, int *poutbuf_size,
+                     const uint8_t *buf, int buf_size)
+{
+    AACAC3ParseContext *s = s1->priv_data;
+    ParseContext *pc = &s->pc;
+    int len, i;
+    int new_frame_start;
+    int got_frame = 0;
+
+get_next:
+    i=END_NOT_FOUND;
+    if(s->remaining_size <= buf_size){
+        if(s->remaining_size && !s->need_next_header){
+            i= s->remaining_size;
+            s->remaining_size = 0;
+        }else{ //we need a header first
+            len=0;
+            for(i=s->remaining_size; i<buf_size; i++){
+                s->state = (s->state<<8) + buf[i];
+                if((len=s->sync(s->state, s, &s->need_next_header, &new_frame_start)))
+                    break;
+            }
+            if(len<=0){
+                i=END_NOT_FOUND;
+            }else{
+                got_frame = 1;
+                s->state=0;
+                i-= s->header_size -1;
+                s->remaining_size = len;
+                if(!new_frame_start || pc->index+i<=0){
+                    s->remaining_size += i;
+                    goto get_next;
+                }
+                else if (i < 0) {
+                    s->remaining_size += i;
+                }
+            }
+        }
+    }
+
+    if(ff_combine_frame(pc, i, &buf, &buf_size)<0){
+        s->remaining_size -= FFMIN(s->remaining_size, buf_size);
+        *poutbuf = NULL;
+        *poutbuf_size = 0;
+        return buf_size;
+    }
+
+    *poutbuf = buf;
+    *poutbuf_size = buf_size;
+
+    /* update codec info */
+    if(s->codec_id)
+        avctx->codec_id = s->codec_id;
+
+    if (got_frame) {
+        /* Due to backwards compatible HE-AAC the sample rate, channel count,
+           and total number of samples found in an AAC ADTS header are not
+           reliable. Bit rate is still accurate because the total frame
+           duration in seconds is still correct (as is the number of bits in
+           the frame). */
+        if (avctx->codec_id != AV_CODEC_ID_AAC) {
+            avctx->sample_rate = s->sample_rate;
+            if (avctx->codec_id != AV_CODEC_ID_EAC3) {
+                avctx->channels = s->channels;
+                avctx->channel_layout = s->channel_layout;
+            }
+            s1->duration = s->samples;
+            avctx->audio_service_type = s->service_type;
+        }
+
+        if (avctx->codec_id != AV_CODEC_ID_EAC3)
+            avctx->bit_rate = s->bit_rate;
+    }
+
+    return i;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_ac3_parser.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_ac3_parser.h
new file mode 100644
index 000000000..c2506a5bf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_ac3_parser.h
@@ -0,0 +1,66 @@
+/*
+ * Common AAC and AC-3 parser prototypes
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AAC_AC3_PARSER_H
+#define AVCODEC_AAC_AC3_PARSER_H
+
+#include <stdint.h>
+#include "avcodec.h"
+#include "parser.h"
+
+typedef enum {
+    AAC_AC3_PARSE_ERROR_SYNC        = -0x1030c0a,
+    AAC_AC3_PARSE_ERROR_BSID        = -0x2030c0a,
+    AAC_AC3_PARSE_ERROR_SAMPLE_RATE = -0x3030c0a,
+    AAC_AC3_PARSE_ERROR_FRAME_SIZE  = -0x4030c0a,
+    AAC_AC3_PARSE_ERROR_FRAME_TYPE  = -0x5030c0a,
+    AAC_AC3_PARSE_ERROR_CRC         = -0x6030c0a,
+    AAC_AC3_PARSE_ERROR_CHANNEL_CFG = -0x7030c0a,
+} AACAC3ParseError;
+
+typedef struct AACAC3ParseContext {
+    ParseContext pc;
+    int frame_size;
+    int header_size;
+    int (*sync)(uint64_t state, struct AACAC3ParseContext *hdr_info,
+            int *need_next_header, int *new_frame_start);
+
+    int channels;
+    int sample_rate;
+    int bit_rate;
+    int samples;
+    uint64_t channel_layout;
+    int service_type;
+
+    int remaining_size;
+    uint64_t state;
+
+    int need_next_header;
+    enum AVCodecID codec_id;
+} AACAC3ParseContext;
+
+int ff_aac_ac3_parse(AVCodecParserContext *s1,
+                     AVCodecContext *avctx,
+                     const uint8_t **poutbuf, int *poutbuf_size,
+                     const uint8_t *buf, int buf_size);
+
+#endif /* AVCODEC_AAC_AC3_PARSER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_adtstoasc_bsf.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_adtstoasc_bsf.c
new file mode 100644
index 000000000..6541b1189
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_adtstoasc_bsf.c
@@ -0,0 +1,158 @@
+/*
+ * MPEG-2/4 AAC ADTS to MPEG-4 Audio Specific Configuration bitstream filter
+ * Copyright (c) 2009 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "adts_header.h"
+#include "adts_parser.h"
+#include "avcodec.h"
+#include "bsf.h"
+#include "put_bits.h"
+#include "get_bits.h"
+#include "mpeg4audio.h"
+#include "internal.h"
+
+typedef struct AACBSFContext {
+    int first_frame_done;
+} AACBSFContext;
+
+/**
+ * This filter creates an MPEG-4 AudioSpecificConfig from an MPEG-2/4
+ * ADTS header and removes the ADTS header.
+ */
+static int aac_adtstoasc_filter(AVBSFContext *bsfc, AVPacket *pkt)
+{
+    AACBSFContext *ctx = bsfc->priv_data;
+
+    GetBitContext gb;
+    PutBitContext pb;
+    AACADTSHeaderInfo hdr;
+    int ret;
+
+    ret = ff_bsf_get_packet_ref(bsfc, pkt);
+    if (ret < 0)
+        return ret;
+
+    if (bsfc->par_in->extradata && pkt->size >= 2 && (AV_RB16(pkt->data) >> 4) != 0xfff)
+        return 0;
+
+    if (pkt->size < AV_AAC_ADTS_HEADER_SIZE)
+        goto packet_too_small;
+
+    init_get_bits(&gb, pkt->data, AV_AAC_ADTS_HEADER_SIZE * 8);
+
+    if (ff_adts_header_parse(&gb, &hdr) < 0) {
+        av_log(bsfc, AV_LOG_ERROR, "Error parsing ADTS frame header!\n");
+        ret = AVERROR_INVALIDDATA;
+        goto fail;
+    }
+
+    if (!hdr.crc_absent && hdr.num_aac_frames > 1) {
+        avpriv_report_missing_feature(bsfc,
+                                      "Multiple RDBs per frame with CRC");
+        ret = AVERROR_PATCHWELCOME;
+        goto fail;
+    }
+
+    pkt->size -= AV_AAC_ADTS_HEADER_SIZE + 2 * !hdr.crc_absent;
+    if (pkt->size <= 0)
+        goto packet_too_small;
+    pkt->data += AV_AAC_ADTS_HEADER_SIZE + 2 * !hdr.crc_absent;
+
+    if (!ctx->first_frame_done) {
+        int            pce_size = 0;
+        uint8_t        pce_data[MAX_PCE_SIZE];
+        uint8_t       *extradata;
+
+        if (!hdr.chan_config) {
+            init_get_bits(&gb, pkt->data, pkt->size * 8);
+            if (get_bits(&gb, 3) != 5) {
+                avpriv_report_missing_feature(bsfc,
+                                              "PCE-based channel configuration "
+                                              "without PCE as first syntax "
+                                              "element");
+                ret = AVERROR_PATCHWELCOME;
+                goto fail;
+            }
+            init_put_bits(&pb, pce_data, MAX_PCE_SIZE);
+            pce_size = ff_copy_pce_data(&pb, &gb) / 8;
+            flush_put_bits(&pb);
+            pkt->size -= get_bits_count(&gb)/8;
+            pkt->data += get_bits_count(&gb)/8;
+        }
+
+        extradata = av_packet_new_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
+                                            2 + pce_size);
+        if (!extradata) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+
+        init_put_bits(&pb, extradata, 2 + pce_size);
+        put_bits(&pb, 5, hdr.object_type);
+        put_bits(&pb, 4, hdr.sampling_index);
+        put_bits(&pb, 4, hdr.chan_config);
+        put_bits(&pb, 1, 0); //frame length - 1024 samples
+        put_bits(&pb, 1, 0); //does not depend on core coder
+        put_bits(&pb, 1, 0); //is not extension
+        flush_put_bits(&pb);
+        if (pce_size) {
+            memcpy(extradata + 2, pce_data, pce_size);
+        }
+
+        ctx->first_frame_done = 1;
+    }
+
+    return 0;
+
+packet_too_small:
+    av_log(bsfc, AV_LOG_ERROR, "Input packet too small\n");
+    ret = AVERROR_INVALIDDATA;
+fail:
+    av_packet_unref(pkt);
+    return ret;
+}
+
+static int aac_adtstoasc_init(AVBSFContext *ctx)
+{
+    /* Validate the extradata if the stream is already MPEG-4 AudioSpecificConfig */
+    if (ctx->par_in->extradata) {
+        MPEG4AudioConfig mp4ac;
+        int ret = avpriv_mpeg4audio_get_config(&mp4ac, ctx->par_in->extradata,
+                                               ctx->par_in->extradata_size * 8, 1);
+        if (ret < 0) {
+            av_log(ctx, AV_LOG_ERROR, "Error parsing AudioSpecificConfig extradata!\n");
+            return ret;
+        }
+    }
+
+    return 0;
+}
+
+static const enum AVCodecID codec_ids[] = {
+    AV_CODEC_ID_AAC, AV_CODEC_ID_NONE,
+};
+
+const AVBitStreamFilter ff_aac_adtstoasc_bsf = {
+    .name           = "aac_adtstoasc",
+    .priv_data_size = sizeof(AACBSFContext),
+    .init           = aac_adtstoasc_init,
+    .filter         = aac_adtstoasc_filter,
+    .codec_ids      = codec_ids,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_defines.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_defines.h
new file mode 100644
index 000000000..438d78a7a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_defines.h
@@ -0,0 +1,116 @@
+/*
+ * AAC defines
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AAC_DEFINES_H
+#define AVCODEC_AAC_DEFINES_H
+
+#ifndef USE_FIXED
+#define USE_FIXED 0
+#endif
+
+#if USE_FIXED
+
+#include "libavutil/softfloat.h"
+
+#define FFT_FLOAT    0
+#define FFT_FIXED_32 1
+
+#define AAC_RENAME(x)       x ## _fixed
+#define AAC_RENAME_32(x)    x ## _fixed_32
+typedef int                 INTFLOAT;
+typedef unsigned            UINTFLOAT;  ///< Equivalent to INTFLOAT, Used as temporal cast to avoid undefined sign overflow operations.
+typedef int64_t             INT64FLOAT;
+typedef int16_t             SHORTFLOAT;
+typedef SoftFloat           AAC_FLOAT;
+typedef int                 AAC_SIGNE;
+#define FIXR(a)             ((int)((a) * 1 + 0.5))
+#define FIXR10(a)           ((int)((a) * 1024.0 + 0.5))
+#define Q23(a)              (int)((a) * 8388608.0 + 0.5)
+#define Q30(x)              (int)((x)*1073741824.0 + 0.5)
+#define Q31(x)              (int)((x)*2147483648.0 + 0.5)
+#define RANGE15(x)          x
+#define GET_GAIN(x, y)      (-(y) * (1 << (x))) + 1024
+#define AAC_MUL16(x, y)     (int)(((int64_t)(x) * (y) + 0x8000) >> 16)
+#define AAC_MUL26(x, y)     (int)(((int64_t)(x) * (y) + 0x2000000) >> 26)
+#define AAC_MUL30(x, y)     (int)(((int64_t)(x) * (y) + 0x20000000) >> 30)
+#define AAC_MUL31(x, y)     (int)(((int64_t)(x) * (y) + 0x40000000) >> 31)
+#define AAC_MADD28(x, y, a, b) (int)((((int64_t)(x) * (y)) + \
+                                      ((int64_t)(a) * (b)) + \
+                                        0x8000000) >> 28)
+#define AAC_MADD30(x, y, a, b) (int)((((int64_t)(x) * (y)) + \
+                                      ((int64_t)(a) * (b)) + \
+                                        0x20000000) >> 30)
+#define AAC_MADD30_V8(x, y, a, b, c, d, e, f) (int)((((int64_t)(x) * (y)) + \
+                                                     ((int64_t)(a) * (b)) + \
+                                                     ((int64_t)(c) * (d)) + \
+                                                     ((int64_t)(e) * (f)) + \
+                                                       0x20000000) >> 30)
+#define AAC_MSUB30(x, y, a, b) (int)((((int64_t)(x) * (y)) - \
+                                      ((int64_t)(a) * (b)) + \
+                                        0x20000000) >> 30)
+#define AAC_MSUB30_V8(x, y, a, b, c, d, e, f) (int)((((int64_t)(x) * (y)) + \
+                                                     ((int64_t)(a) * (b)) - \
+                                                     ((int64_t)(c) * (d)) - \
+                                                     ((int64_t)(e) * (f)) + \
+                                                       0x20000000) >> 30)
+#define AAC_MSUB31_V3(x, y, z)    (int)((((int64_t)(x) * (z)) - \
+                                      ((int64_t)(y) * (z)) + \
+                                        0x40000000) >> 31)
+#define AAC_HALF_SUM(x, y)  (((x) >> 1) + ((y) >> 1))
+#define AAC_SRA_R(x, y)     (int)(((x) + (1 << ((y) - 1))) >> (y))
+
+#else
+
+#define FFT_FLOAT    1
+#define FFT_FIXED_32 0
+
+#define AAC_RENAME(x)       x
+#define AAC_RENAME_32(x)    x
+typedef float               INTFLOAT;
+typedef float               UINTFLOAT;
+typedef float               INT64FLOAT;
+typedef float               SHORTFLOAT;
+typedef float               AAC_FLOAT;
+typedef unsigned            AAC_SIGNE;
+#define FIXR(x)             ((float)(x))
+#define FIXR10(x)           ((float)(x))
+#define Q23(x)              ((float)(x))
+#define Q30(x)              ((float)(x))
+#define Q31(x)              ((float)(x))
+#define RANGE15(x)          (32768.0 * (x))
+#define GET_GAIN(x, y)      powf((x), -(y))
+#define AAC_MUL16(x, y)     ((x) * (y))
+#define AAC_MUL26(x, y)     ((x) * (y))
+#define AAC_MUL30(x, y)     ((x) * (y))
+#define AAC_MUL31(x, y)     ((x) * (y))
+#define AAC_MADD28(x, y, a, b) ((x) * (y) + (a) * (b))
+#define AAC_MADD30(x, y, a, b) ((x) * (y) + (a) * (b))
+#define AAC_MADD30_V8(x, y, a, b, c, d, e, f) ((x) * (y) + (a) * (b) + \
+                                               (c) * (d) + (e) * (f))
+#define AAC_MSUB30(x, y, a, b) ((x) * (y) - (a) * (b))
+#define AAC_MSUB30_V8(x, y, a, b, c, d, e, f) ((x) * (y) + (a) * (b) - \
+                                               (c) * (d) - (e) * (f))
+#define AAC_MSUB31_V3(x, y, z)    ((x) - (y)) * (z)
+#define AAC_HALF_SUM(x, y)  ((x) + (y)) * 0.5f
+#define AAC_SRA_R(x, y)     (x)
+
+#endif /* USE_FIXED */
+
+#endif /* AVCODEC_AAC_DEFINES_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_parser.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_parser.c
new file mode 100644
index 000000000..b8692625f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aac_parser.c
@@ -0,0 +1,71 @@
+/*
+ * Audio and Video frame extraction
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "parser.h"
+#include "aac_ac3_parser.h"
+#include "adts_header.h"
+#include "adts_parser.h"
+#include "get_bits.h"
+#include "mpeg4audio.h"
+
+static int aac_sync(uint64_t state, AACAC3ParseContext *hdr_info,
+        int *need_next_header, int *new_frame_start)
+{
+    GetBitContext bits;
+    AACADTSHeaderInfo hdr;
+    int size;
+    union {
+        uint64_t u64;
+        uint8_t  u8[8 + AV_INPUT_BUFFER_PADDING_SIZE];
+    } tmp;
+
+    tmp.u64 = av_be2ne64(state);
+    init_get_bits(&bits, tmp.u8 + 8 - AV_AAC_ADTS_HEADER_SIZE,
+                  AV_AAC_ADTS_HEADER_SIZE * 8);
+
+    if ((size = ff_adts_header_parse(&bits, &hdr)) < 0)
+        return 0;
+    *need_next_header = 0;
+    *new_frame_start  = 1;
+    hdr_info->sample_rate = hdr.sample_rate;
+    hdr_info->channels    = ff_mpeg4audio_channels[hdr.chan_config];
+    hdr_info->samples     = hdr.samples;
+    hdr_info->bit_rate    = hdr.bit_rate;
+    return size;
+}
+
+static av_cold int aac_parse_init(AVCodecParserContext *s1)
+{
+    AACAC3ParseContext *s = s1->priv_data;
+    s->header_size = AV_AAC_ADTS_HEADER_SIZE;
+    s->sync = aac_sync;
+    return 0;
+}
+
+
+AVCodecParser ff_aac_parser = {
+    .codec_ids      = { AV_CODEC_ID_AAC },
+    .priv_data_size = sizeof(AACAC3ParseContext),
+    .parser_init    = aac_parse_init,
+    .parser_parse   = ff_aac_ac3_parse,
+    .parser_close   = ff_parse_close,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aaccoder.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aaccoder.c
new file mode 100644
index 000000000..baa82489b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aaccoder.c
@@ -0,0 +1,964 @@
+/*
+ * AAC coefficients encoder
+ * Copyright (C) 2008-2009 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC coefficients encoder
+ */
+
+/***********************************
+ *              TODOs:
+ * speedup quantizer selection
+ * add sane pulse detection
+ ***********************************/
+
+#include "libavutil/libm.h" // brought forward to work around cygwin header breakage
+
+#include <float.h>
+
+#include "libavutil/mathematics.h"
+#include "mathops.h"
+#include "avcodec.h"
+#include "put_bits.h"
+#include "aac.h"
+#include "aacenc.h"
+#include "aactab.h"
+#include "aacenctab.h"
+#include "aacenc_utils.h"
+#include "aacenc_quantization.h"
+
+#include "aacenc_is.h"
+#include "aacenc_tns.h"
+#include "aacenc_ltp.h"
+#include "aacenc_pred.h"
+
+#include "libavcodec/aaccoder_twoloop.h"
+
+/* Parameter of f(x) = a*(lambda/100), defines the maximum fourier spread
+ * beyond which no PNS is used (since the SFBs contain tone rather than noise) */
+#define NOISE_SPREAD_THRESHOLD 0.9f
+
+/* Parameter of f(x) = a*(100/lambda), defines how much PNS is allowed to
+ * replace low energy non zero bands */
+#define NOISE_LAMBDA_REPLACE 1.948f
+
+#include "libavcodec/aaccoder_trellis.h"
+
+/**
+ * structure used in optimal codebook search
+ */
+typedef struct BandCodingPath {
+    int prev_idx; ///< pointer to the previous path point
+    float cost;   ///< path cost
+    int run;
+} BandCodingPath;
+
+/**
+ * Encode band info for single window group bands.
+ */
+static void encode_window_bands_info(AACEncContext *s, SingleChannelElement *sce,
+                                     int win, int group_len, const float lambda)
+{
+    BandCodingPath path[120][CB_TOT_ALL];
+    int w, swb, cb, start, size;
+    int i, j;
+    const int max_sfb  = sce->ics.max_sfb;
+    const int run_bits = sce->ics.num_windows == 1 ? 5 : 3;
+    const int run_esc  = (1 << run_bits) - 1;
+    int idx, ppos, count;
+    int stackrun[120], stackcb[120], stack_len;
+    float next_minrd = INFINITY;
+    int next_mincb = 0;
+
+    s->abs_pow34(s->scoefs, sce->coeffs, 1024);
+    start = win*128;
+    for (cb = 0; cb < CB_TOT_ALL; cb++) {
+        path[0][cb].cost     = 0.0f;
+        path[0][cb].prev_idx = -1;
+        path[0][cb].run      = 0;
+    }
+    for (swb = 0; swb < max_sfb; swb++) {
+        size = sce->ics.swb_sizes[swb];
+        if (sce->zeroes[win*16 + swb]) {
+            for (cb = 0; cb < CB_TOT_ALL; cb++) {
+                path[swb+1][cb].prev_idx = cb;
+                path[swb+1][cb].cost     = path[swb][cb].cost;
+                path[swb+1][cb].run      = path[swb][cb].run + 1;
+            }
+        } else {
+            float minrd = next_minrd;
+            int mincb = next_mincb;
+            next_minrd = INFINITY;
+            next_mincb = 0;
+            for (cb = 0; cb < CB_TOT_ALL; cb++) {
+                float cost_stay_here, cost_get_here;
+                float rd = 0.0f;
+                if (cb >= 12 && sce->band_type[win*16+swb] < aac_cb_out_map[cb] ||
+                    cb  < aac_cb_in_map[sce->band_type[win*16+swb]] && sce->band_type[win*16+swb] > aac_cb_out_map[cb]) {
+                    path[swb+1][cb].prev_idx = -1;
+                    path[swb+1][cb].cost     = INFINITY;
+                    path[swb+1][cb].run      = path[swb][cb].run + 1;
+                    continue;
+                }
+                for (w = 0; w < group_len; w++) {
+                    FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[(win+w)*16+swb];
+                    rd += quantize_band_cost(s, &sce->coeffs[start + w*128],
+                                             &s->scoefs[start + w*128], size,
+                                             sce->sf_idx[(win+w)*16+swb], aac_cb_out_map[cb],
+                                             lambda / band->threshold, INFINITY, NULL, NULL, 0);
+                }
+                cost_stay_here = path[swb][cb].cost + rd;
+                cost_get_here  = minrd              + rd + run_bits + 4;
+                if (   run_value_bits[sce->ics.num_windows == 8][path[swb][cb].run]
+                    != run_value_bits[sce->ics.num_windows == 8][path[swb][cb].run+1])
+                    cost_stay_here += run_bits;
+                if (cost_get_here < cost_stay_here) {
+                    path[swb+1][cb].prev_idx = mincb;
+                    path[swb+1][cb].cost     = cost_get_here;
+                    path[swb+1][cb].run      = 1;
+                } else {
+                    path[swb+1][cb].prev_idx = cb;
+                    path[swb+1][cb].cost     = cost_stay_here;
+                    path[swb+1][cb].run      = path[swb][cb].run + 1;
+                }
+                if (path[swb+1][cb].cost < next_minrd) {
+                    next_minrd = path[swb+1][cb].cost;
+                    next_mincb = cb;
+                }
+            }
+        }
+        start += sce->ics.swb_sizes[swb];
+    }
+
+    //convert resulting path from backward-linked list
+    stack_len = 0;
+    idx       = 0;
+    for (cb = 1; cb < CB_TOT_ALL; cb++)
+        if (path[max_sfb][cb].cost < path[max_sfb][idx].cost)
+            idx = cb;
+    ppos = max_sfb;
+    while (ppos > 0) {
+        av_assert1(idx >= 0);
+        cb = idx;
+        stackrun[stack_len] = path[ppos][cb].run;
+        stackcb [stack_len] = cb;
+        idx = path[ppos-path[ppos][cb].run+1][cb].prev_idx;
+        ppos -= path[ppos][cb].run;
+        stack_len++;
+    }
+    //perform actual band info encoding
+    start = 0;
+    for (i = stack_len - 1; i >= 0; i--) {
+        cb = aac_cb_out_map[stackcb[i]];
+        put_bits(&s->pb, 4, cb);
+        count = stackrun[i];
+        memset(sce->zeroes + win*16 + start, !cb, count);
+        //XXX: memset when band_type is also uint8_t
+        for (j = 0; j < count; j++) {
+            sce->band_type[win*16 + start] = cb;
+            start++;
+        }
+        while (count >= run_esc) {
+            put_bits(&s->pb, run_bits, run_esc);
+            count -= run_esc;
+        }
+        put_bits(&s->pb, run_bits, count);
+    }
+}
+
+
+typedef struct TrellisPath {
+    float cost;
+    int prev;
+} TrellisPath;
+
+#define TRELLIS_STAGES 121
+#define TRELLIS_STATES (SCALE_MAX_DIFF+1)
+
+static void set_special_band_scalefactors(AACEncContext *s, SingleChannelElement *sce)
+{
+    int w, g;
+    int prevscaler_n = -255, prevscaler_i = 0;
+    int bands = 0;
+
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        for (g = 0; g < sce->ics.num_swb; g++) {
+            if (sce->zeroes[w*16+g])
+                continue;
+            if (sce->band_type[w*16+g] == INTENSITY_BT || sce->band_type[w*16+g] == INTENSITY_BT2) {
+                sce->sf_idx[w*16+g] = av_clip(roundf(log2f(sce->is_ener[w*16+g])*2), -155, 100);
+                bands++;
+            } else if (sce->band_type[w*16+g] == NOISE_BT) {
+                sce->sf_idx[w*16+g] = av_clip(3+ceilf(log2f(sce->pns_ener[w*16+g])*2), -100, 155);
+                if (prevscaler_n == -255)
+                    prevscaler_n = sce->sf_idx[w*16+g];
+                bands++;
+            }
+        }
+    }
+
+    if (!bands)
+        return;
+
+    /* Clip the scalefactor indices */
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        for (g = 0; g < sce->ics.num_swb; g++) {
+            if (sce->zeroes[w*16+g])
+                continue;
+            if (sce->band_type[w*16+g] == INTENSITY_BT || sce->band_type[w*16+g] == INTENSITY_BT2) {
+                sce->sf_idx[w*16+g] = prevscaler_i = av_clip(sce->sf_idx[w*16+g], prevscaler_i - SCALE_MAX_DIFF, prevscaler_i + SCALE_MAX_DIFF);
+            } else if (sce->band_type[w*16+g] == NOISE_BT) {
+                sce->sf_idx[w*16+g] = prevscaler_n = av_clip(sce->sf_idx[w*16+g], prevscaler_n - SCALE_MAX_DIFF, prevscaler_n + SCALE_MAX_DIFF);
+            }
+        }
+    }
+}
+
+static void search_for_quantizers_anmr(AVCodecContext *avctx, AACEncContext *s,
+                                       SingleChannelElement *sce,
+                                       const float lambda)
+{
+    int q, w, w2, g, start = 0;
+    int i, j;
+    int idx;
+    TrellisPath paths[TRELLIS_STAGES][TRELLIS_STATES];
+    int bandaddr[TRELLIS_STAGES];
+    int minq;
+    float mincost;
+    float q0f = FLT_MAX, q1f = 0.0f, qnrgf = 0.0f;
+    int q0, q1, qcnt = 0;
+
+    for (i = 0; i < 1024; i++) {
+        float t = fabsf(sce->coeffs[i]);
+        if (t > 0.0f) {
+            q0f = FFMIN(q0f, t);
+            q1f = FFMAX(q1f, t);
+            qnrgf += t*t;
+            qcnt++;
+        }
+    }
+
+    if (!qcnt) {
+        memset(sce->sf_idx, 0, sizeof(sce->sf_idx));
+        memset(sce->zeroes, 1, sizeof(sce->zeroes));
+        return;
+    }
+
+    //minimum scalefactor index is when minimum nonzero coefficient after quantizing is not clipped
+    q0 = av_clip(coef2minsf(q0f), 0, SCALE_MAX_POS-1);
+    //maximum scalefactor index is when maximum coefficient after quantizing is still not zero
+    q1 = av_clip(coef2maxsf(q1f), 1, SCALE_MAX_POS);
+    if (q1 - q0 > 60) {
+        int q0low  = q0;
+        int q1high = q1;
+        //minimum scalefactor index is when maximum nonzero coefficient after quantizing is not clipped
+        int qnrg = av_clip_uint8(log2f(sqrtf(qnrgf/qcnt))*4 - 31 + SCALE_ONE_POS - SCALE_DIV_512);
+        q1 = qnrg + 30;
+        q0 = qnrg - 30;
+        if (q0 < q0low) {
+            q1 += q0low - q0;
+            q0  = q0low;
+        } else if (q1 > q1high) {
+            q0 -= q1 - q1high;
+            q1  = q1high;
+        }
+    }
+    // q0 == q1 isn't really a legal situation
+    if (q0 == q1) {
+        // the following is indirect but guarantees q1 != q0 && q1 near q0
+        q1 = av_clip(q0+1, 1, SCALE_MAX_POS);
+        q0 = av_clip(q1-1, 0, SCALE_MAX_POS - 1);
+    }
+
+    for (i = 0; i < TRELLIS_STATES; i++) {
+        paths[0][i].cost    = 0.0f;
+        paths[0][i].prev    = -1;
+    }
+    for (j = 1; j < TRELLIS_STAGES; j++) {
+        for (i = 0; i < TRELLIS_STATES; i++) {
+            paths[j][i].cost    = INFINITY;
+            paths[j][i].prev    = -2;
+        }
+    }
+    idx = 1;
+    s->abs_pow34(s->scoefs, sce->coeffs, 1024);
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        start = w*128;
+        for (g = 0; g < sce->ics.num_swb; g++) {
+            const float *coefs = &sce->coeffs[start];
+            float qmin, qmax;
+            int nz = 0;
+
+            bandaddr[idx] = w * 16 + g;
+            qmin = INT_MAX;
+            qmax = 0.0f;
+            for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];
+                if (band->energy <= band->threshold || band->threshold == 0.0f) {
+                    sce->zeroes[(w+w2)*16+g] = 1;
+                    continue;
+                }
+                sce->zeroes[(w+w2)*16+g] = 0;
+                nz = 1;
+                for (i = 0; i < sce->ics.swb_sizes[g]; i++) {
+                    float t = fabsf(coefs[w2*128+i]);
+                    if (t > 0.0f)
+                        qmin = FFMIN(qmin, t);
+                    qmax = FFMAX(qmax, t);
+                }
+            }
+            if (nz) {
+                int minscale, maxscale;
+                float minrd = INFINITY;
+                float maxval;
+                //minimum scalefactor index is when minimum nonzero coefficient after quantizing is not clipped
+                minscale = coef2minsf(qmin);
+                //maximum scalefactor index is when maximum coefficient after quantizing is still not zero
+                maxscale = coef2maxsf(qmax);
+                minscale = av_clip(minscale - q0, 0, TRELLIS_STATES - 1);
+                maxscale = av_clip(maxscale - q0, 0, TRELLIS_STATES);
+                if (minscale == maxscale) {
+                    maxscale = av_clip(minscale+1, 1, TRELLIS_STATES);
+                    minscale = av_clip(maxscale-1, 0, TRELLIS_STATES - 1);
+                }
+                maxval = find_max_val(sce->ics.group_len[w], sce->ics.swb_sizes[g], s->scoefs+start);
+                for (q = minscale; q < maxscale; q++) {
+                    float dist = 0;
+                    int cb = find_min_book(maxval, sce->sf_idx[w*16+g]);
+                    for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                        FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];
+                        dist += quantize_band_cost(s, coefs + w2*128, s->scoefs + start + w2*128, sce->ics.swb_sizes[g],
+                                                   q + q0, cb, lambda / band->threshold, INFINITY, NULL, NULL, 0);
+                    }
+                    minrd = FFMIN(minrd, dist);
+
+                    for (i = 0; i < q1 - q0; i++) {
+                        float cost;
+                        cost = paths[idx - 1][i].cost + dist
+                               + ff_aac_scalefactor_bits[q - i + SCALE_DIFF_ZERO];
+                        if (cost < paths[idx][q].cost) {
+                            paths[idx][q].cost    = cost;
+                            paths[idx][q].prev    = i;
+                        }
+                    }
+                }
+            } else {
+                for (q = 0; q < q1 - q0; q++) {
+                    paths[idx][q].cost = paths[idx - 1][q].cost + 1;
+                    paths[idx][q].prev = q;
+                }
+            }
+            sce->zeroes[w*16+g] = !nz;
+            start += sce->ics.swb_sizes[g];
+            idx++;
+        }
+    }
+    idx--;
+    mincost = paths[idx][0].cost;
+    minq    = 0;
+    for (i = 1; i < TRELLIS_STATES; i++) {
+        if (paths[idx][i].cost < mincost) {
+            mincost = paths[idx][i].cost;
+            minq = i;
+        }
+    }
+    while (idx) {
+        sce->sf_idx[bandaddr[idx]] = minq + q0;
+        minq = FFMAX(paths[idx][minq].prev, 0);
+        idx--;
+    }
+    //set the same quantizers inside window groups
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w])
+        for (g = 0; g < sce->ics.num_swb; g++)
+            for (w2 = 1; w2 < sce->ics.group_len[w]; w2++)
+                sce->sf_idx[(w+w2)*16+g] = sce->sf_idx[w*16+g];
+}
+
+static void search_for_quantizers_fast(AVCodecContext *avctx, AACEncContext *s,
+                                       SingleChannelElement *sce,
+                                       const float lambda)
+{
+    int start = 0, i, w, w2, g;
+    int destbits = avctx->bit_rate * 1024.0 / avctx->sample_rate / avctx->channels * (lambda / 120.f);
+    float dists[128] = { 0 }, uplims[128] = { 0 };
+    float maxvals[128];
+    int fflag, minscaler;
+    int its  = 0;
+    int allz = 0;
+    float minthr = INFINITY;
+
+    // for values above this the decoder might end up in an endless loop
+    // due to always having more bits than what can be encoded.
+    destbits = FFMIN(destbits, 5800);
+    //some heuristic to determine initial quantizers will reduce search time
+    //determine zero bands and upper limits
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        start = 0;
+        for (g = 0; g < sce->ics.num_swb; g++) {
+            int nz = 0;
+            float uplim = 0.0f, energy = 0.0f;
+            for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];
+                uplim += band->threshold;
+                energy += band->energy;
+                if (band->energy <= band->threshold || band->threshold == 0.0f) {
+                    sce->zeroes[(w+w2)*16+g] = 1;
+                    continue;
+                }
+                nz = 1;
+            }
+            uplims[w*16+g] = uplim *512;
+            sce->band_type[w*16+g] = 0;
+            sce->zeroes[w*16+g] = !nz;
+            if (nz)
+                minthr = FFMIN(minthr, uplim);
+            allz |= nz;
+            start += sce->ics.swb_sizes[g];
+        }
+    }
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        for (g = 0; g < sce->ics.num_swb; g++) {
+            if (sce->zeroes[w*16+g]) {
+                sce->sf_idx[w*16+g] = SCALE_ONE_POS;
+                continue;
+            }
+            sce->sf_idx[w*16+g] = SCALE_ONE_POS + FFMIN(log2f(uplims[w*16+g]/minthr)*4,59);
+        }
+    }
+
+    if (!allz)
+        return;
+    s->abs_pow34(s->scoefs, sce->coeffs, 1024);
+    ff_quantize_band_cost_cache_init(s);
+
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        start = w*128;
+        for (g = 0; g < sce->ics.num_swb; g++) {
+            const float *scaled = s->scoefs + start;
+            maxvals[w*16+g] = find_max_val(sce->ics.group_len[w], sce->ics.swb_sizes[g], scaled);
+            start += sce->ics.swb_sizes[g];
+        }
+    }
+
+    //perform two-loop search
+    //outer loop - improve quality
+    do {
+        int tbits, qstep;
+        minscaler = sce->sf_idx[0];
+        //inner loop - quantize spectrum to fit into given number of bits
+        qstep = its ? 1 : 32;
+        do {
+            int prev = -1;
+            tbits = 0;
+            for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+                start = w*128;
+                for (g = 0; g < sce->ics.num_swb; g++) {
+                    const float *coefs = sce->coeffs + start;
+                    const float *scaled = s->scoefs + start;
+                    int bits = 0;
+                    int cb;
+                    float dist = 0.0f;
+
+                    if (sce->zeroes[w*16+g] || sce->sf_idx[w*16+g] >= 218) {
+                        start += sce->ics.swb_sizes[g];
+                        continue;
+                    }
+                    minscaler = FFMIN(minscaler, sce->sf_idx[w*16+g]);
+                    cb = find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]);
+                    for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                        int b;
+                        dist += quantize_band_cost_cached(s, w + w2, g,
+                                                          coefs + w2*128,
+                                                          scaled + w2*128,
+                                                          sce->ics.swb_sizes[g],
+                                                          sce->sf_idx[w*16+g],
+                                                          cb, 1.0f, INFINITY,
+                                                          &b, NULL, 0);
+                        bits += b;
+                    }
+                    dists[w*16+g] = dist - bits;
+                    if (prev != -1) {
+                        bits += ff_aac_scalefactor_bits[sce->sf_idx[w*16+g] - prev + SCALE_DIFF_ZERO];
+                    }
+                    tbits += bits;
+                    start += sce->ics.swb_sizes[g];
+                    prev = sce->sf_idx[w*16+g];
+                }
+            }
+            if (tbits > destbits) {
+                for (i = 0; i < 128; i++)
+                    if (sce->sf_idx[i] < 218 - qstep)
+                        sce->sf_idx[i] += qstep;
+            } else {
+                for (i = 0; i < 128; i++)
+                    if (sce->sf_idx[i] > 60 - qstep)
+                        sce->sf_idx[i] -= qstep;
+            }
+            qstep >>= 1;
+            if (!qstep && tbits > destbits*1.02 && sce->sf_idx[0] < 217)
+                qstep = 1;
+        } while (qstep);
+
+        fflag = 0;
+        minscaler = av_clip(minscaler, 60, 255 - SCALE_MAX_DIFF);
+
+        for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+            for (g = 0; g < sce->ics.num_swb; g++) {
+                int prevsc = sce->sf_idx[w*16+g];
+                if (dists[w*16+g] > uplims[w*16+g] && sce->sf_idx[w*16+g] > 60) {
+                    if (find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]-1))
+                        sce->sf_idx[w*16+g]--;
+                    else //Try to make sure there is some energy in every band
+                        sce->sf_idx[w*16+g]-=2;
+                }
+                sce->sf_idx[w*16+g] = av_clip(sce->sf_idx[w*16+g], minscaler, minscaler + SCALE_MAX_DIFF);
+                sce->sf_idx[w*16+g] = FFMIN(sce->sf_idx[w*16+g], 219);
+                if (sce->sf_idx[w*16+g] != prevsc)
+                    fflag = 1;
+                sce->band_type[w*16+g] = find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]);
+            }
+        }
+        its++;
+    } while (fflag && its < 10);
+}
+
+static void search_for_pns(AACEncContext *s, AVCodecContext *avctx, SingleChannelElement *sce)
+{
+    FFPsyBand *band;
+    int w, g, w2, i;
+    int wlen = 1024 / sce->ics.num_windows;
+    int bandwidth, cutoff;
+    float *PNS = &s->scoefs[0*128], *PNS34 = &s->scoefs[1*128];
+    float *NOR34 = &s->scoefs[3*128];
+    uint8_t nextband[128];
+    const float lambda = s->lambda;
+    const float freq_mult = avctx->sample_rate*0.5f/wlen;
+    const float thr_mult = NOISE_LAMBDA_REPLACE*(100.0f/lambda);
+    const float spread_threshold = FFMIN(0.75f, NOISE_SPREAD_THRESHOLD*FFMAX(0.5f, lambda/100.f));
+    const float dist_bias = av_clipf(4.f * 120 / lambda, 0.25f, 4.0f);
+    const float pns_transient_energy_r = FFMIN(0.7f, lambda / 140.f);
+
+    int refbits = avctx->bit_rate * 1024.0 / avctx->sample_rate
+        / ((avctx->flags & AV_CODEC_FLAG_QSCALE) ? 2.0f : avctx->channels)
+        * (lambda / 120.f);
+
+    /** Keep this in sync with twoloop's cutoff selection */
+    float rate_bandwidth_multiplier = 1.5f;
+    int prev = -1000, prev_sf = -1;
+    int frame_bit_rate = (avctx->flags & AV_CODEC_FLAG_QSCALE)
+        ? (refbits * rate_bandwidth_multiplier * avctx->sample_rate / 1024)
+        : (avctx->bit_rate / avctx->channels);
+
+    frame_bit_rate *= 1.15f;
+
+    if (avctx->cutoff > 0) {
+        bandwidth = avctx->cutoff;
+    } else {
+        bandwidth = FFMAX(3000, AAC_CUTOFF_FROM_BITRATE(frame_bit_rate, 1, avctx->sample_rate));
+    }
+
+    cutoff = bandwidth * 2 * wlen / avctx->sample_rate;
+
+    memcpy(sce->band_alt, sce->band_type, sizeof(sce->band_type));
+    ff_init_nextband_map(sce, nextband);
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        int wstart = w*128;
+        for (g = 0; g < sce->ics.num_swb; g++) {
+            int noise_sfi;
+            float dist1 = 0.0f, dist2 = 0.0f, noise_amp;
+            float pns_energy = 0.0f, pns_tgt_energy, energy_ratio, dist_thresh;
+            float sfb_energy = 0.0f, threshold = 0.0f, spread = 2.0f;
+            float min_energy = -1.0f, max_energy = 0.0f;
+            const int start = wstart+sce->ics.swb_offset[g];
+            const float freq = (start-wstart)*freq_mult;
+            const float freq_boost = FFMAX(0.88f*freq/NOISE_LOW_LIMIT, 1.0f);
+            if (freq < NOISE_LOW_LIMIT || (start-wstart) >= cutoff) {
+                if (!sce->zeroes[w*16+g])
+                    prev_sf = sce->sf_idx[w*16+g];
+                continue;
+            }
+            for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];
+                sfb_energy += band->energy;
+                spread     = FFMIN(spread, band->spread);
+                threshold  += band->threshold;
+                if (!w2) {
+                    min_energy = max_energy = band->energy;
+                } else {
+                    min_energy = FFMIN(min_energy, band->energy);
+                    max_energy = FFMAX(max_energy, band->energy);
+                }
+            }
+
+            /* Ramps down at ~8000Hz and loosens the dist threshold */
+            dist_thresh = av_clipf(2.5f*NOISE_LOW_LIMIT/freq, 0.5f, 2.5f) * dist_bias;
+
+            /* PNS is acceptable when all of these are true:
+             * 1. high spread energy (noise-like band)
+             * 2. near-threshold energy (high PE means the random nature of PNS content will be noticed)
+             * 3. on short window groups, all windows have similar energy (variations in energy would be destroyed by PNS)
+             *
+             * At this stage, point 2 is relaxed for zeroed bands near the noise threshold (hole avoidance is more important)
+             */
+            if ((!sce->zeroes[w*16+g] && !ff_sfdelta_can_remove_band(sce, nextband, prev_sf, w*16+g)) ||
+                ((sce->zeroes[w*16+g] || !sce->band_alt[w*16+g]) && sfb_energy < threshold*sqrtf(1.0f/freq_boost)) || spread < spread_threshold ||
+                (!sce->zeroes[w*16+g] && sce->band_alt[w*16+g] && sfb_energy > threshold*thr_mult*freq_boost) ||
+                min_energy < pns_transient_energy_r * max_energy ) {
+                sce->pns_ener[w*16+g] = sfb_energy;
+                if (!sce->zeroes[w*16+g])
+                    prev_sf = sce->sf_idx[w*16+g];
+                continue;
+            }
+
+            pns_tgt_energy = sfb_energy*FFMIN(1.0f, spread*spread);
+            noise_sfi = av_clip(roundf(log2f(pns_tgt_energy)*2), -100, 155); /* Quantize */
+            noise_amp = -ff_aac_pow2sf_tab[noise_sfi + POW_SF2_ZERO];    /* Dequantize */
+            if (prev != -1000) {
+                int noise_sfdiff = noise_sfi - prev + SCALE_DIFF_ZERO;
+                if (noise_sfdiff < 0 || noise_sfdiff > 2*SCALE_MAX_DIFF) {
+                    if (!sce->zeroes[w*16+g])
+                        prev_sf = sce->sf_idx[w*16+g];
+                    continue;
+                }
+            }
+            for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                float band_energy, scale, pns_senergy;
+                const int start_c = (w+w2)*128+sce->ics.swb_offset[g];
+                band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];
+                for (i = 0; i < sce->ics.swb_sizes[g]; i++) {
+                    s->random_state  = lcg_random(s->random_state);
+                    PNS[i] = s->random_state;
+                }
+                band_energy = s->fdsp->scalarproduct_float(PNS, PNS, sce->ics.swb_sizes[g]);
+                scale = noise_amp/sqrtf(band_energy);
+                s->fdsp->vector_fmul_scalar(PNS, PNS, scale, sce->ics.swb_sizes[g]);
+                pns_senergy = s->fdsp->scalarproduct_float(PNS, PNS, sce->ics.swb_sizes[g]);
+                pns_energy += pns_senergy;
+                s->abs_pow34(NOR34, &sce->coeffs[start_c], sce->ics.swb_sizes[g]);
+                s->abs_pow34(PNS34, PNS, sce->ics.swb_sizes[g]);
+                dist1 += quantize_band_cost(s, &sce->coeffs[start_c],
+                                            NOR34,
+                                            sce->ics.swb_sizes[g],
+                                            sce->sf_idx[(w+w2)*16+g],
+                                            sce->band_alt[(w+w2)*16+g],
+                                            lambda/band->threshold, INFINITY, NULL, NULL, 0);
+                /* Estimate rd on average as 5 bits for SF, 4 for the CB, plus spread energy * lambda/thr */
+                dist2 += band->energy/(band->spread*band->spread)*lambda*dist_thresh/band->threshold;
+            }
+            if (g && sce->band_type[w*16+g-1] == NOISE_BT) {
+                dist2 += 5;
+            } else {
+                dist2 += 9;
+            }
+            energy_ratio = pns_tgt_energy/pns_energy; /* Compensates for quantization error */
+            sce->pns_ener[w*16+g] = energy_ratio*pns_tgt_energy;
+            if (sce->zeroes[w*16+g] || !sce->band_alt[w*16+g] || (energy_ratio > 0.85f && energy_ratio < 1.25f && dist2 < dist1)) {
+                sce->band_type[w*16+g] = NOISE_BT;
+                sce->zeroes[w*16+g] = 0;
+                prev = noise_sfi;
+            } else {
+                if (!sce->zeroes[w*16+g])
+                    prev_sf = sce->sf_idx[w*16+g];
+            }
+        }
+    }
+}
+
+static void mark_pns(AACEncContext *s, AVCodecContext *avctx, SingleChannelElement *sce)
+{
+    FFPsyBand *band;
+    int w, g, w2;
+    int wlen = 1024 / sce->ics.num_windows;
+    int bandwidth, cutoff;
+    const float lambda = s->lambda;
+    const float freq_mult = avctx->sample_rate*0.5f/wlen;
+    const float spread_threshold = FFMIN(0.75f, NOISE_SPREAD_THRESHOLD*FFMAX(0.5f, lambda/100.f));
+    const float pns_transient_energy_r = FFMIN(0.7f, lambda / 140.f);
+
+    int refbits = avctx->bit_rate * 1024.0 / avctx->sample_rate
+        / ((avctx->flags & AV_CODEC_FLAG_QSCALE) ? 2.0f : avctx->channels)
+        * (lambda / 120.f);
+
+    /** Keep this in sync with twoloop's cutoff selection */
+    float rate_bandwidth_multiplier = 1.5f;
+    int frame_bit_rate = (avctx->flags & AV_CODEC_FLAG_QSCALE)
+        ? (refbits * rate_bandwidth_multiplier * avctx->sample_rate / 1024)
+        : (avctx->bit_rate / avctx->channels);
+
+    frame_bit_rate *= 1.15f;
+
+    if (avctx->cutoff > 0) {
+        bandwidth = avctx->cutoff;
+    } else {
+        bandwidth = FFMAX(3000, AAC_CUTOFF_FROM_BITRATE(frame_bit_rate, 1, avctx->sample_rate));
+    }
+
+    cutoff = bandwidth * 2 * wlen / avctx->sample_rate;
+
+    memcpy(sce->band_alt, sce->band_type, sizeof(sce->band_type));
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        for (g = 0; g < sce->ics.num_swb; g++) {
+            float sfb_energy = 0.0f, threshold = 0.0f, spread = 2.0f;
+            float min_energy = -1.0f, max_energy = 0.0f;
+            const int start = sce->ics.swb_offset[g];
+            const float freq = start*freq_mult;
+            const float freq_boost = FFMAX(0.88f*freq/NOISE_LOW_LIMIT, 1.0f);
+            if (freq < NOISE_LOW_LIMIT || start >= cutoff) {
+                sce->can_pns[w*16+g] = 0;
+                continue;
+            }
+            for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];
+                sfb_energy += band->energy;
+                spread     = FFMIN(spread, band->spread);
+                threshold  += band->threshold;
+                if (!w2) {
+                    min_energy = max_energy = band->energy;
+                } else {
+                    min_energy = FFMIN(min_energy, band->energy);
+                    max_energy = FFMAX(max_energy, band->energy);
+                }
+            }
+
+            /* PNS is acceptable when all of these are true:
+             * 1. high spread energy (noise-like band)
+             * 2. near-threshold energy (high PE means the random nature of PNS content will be noticed)
+             * 3. on short window groups, all windows have similar energy (variations in energy would be destroyed by PNS)
+             */
+            sce->pns_ener[w*16+g] = sfb_energy;
+            if (sfb_energy < threshold*sqrtf(1.5f/freq_boost) || spread < spread_threshold || min_energy < pns_transient_energy_r * max_energy) {
+                sce->can_pns[w*16+g] = 0;
+            } else {
+                sce->can_pns[w*16+g] = 1;
+            }
+        }
+    }
+}
+
+static void search_for_ms(AACEncContext *s, ChannelElement *cpe)
+{
+    int start = 0, i, w, w2, g, sid_sf_boost, prev_mid, prev_side;
+    uint8_t nextband0[128], nextband1[128];
+    float *M   = s->scoefs + 128*0, *S   = s->scoefs + 128*1;
+    float *L34 = s->scoefs + 128*2, *R34 = s->scoefs + 128*3;
+    float *M34 = s->scoefs + 128*4, *S34 = s->scoefs + 128*5;
+    const float lambda = s->lambda;
+    const float mslambda = FFMIN(1.0f, lambda / 120.f);
+    SingleChannelElement *sce0 = &cpe->ch[0];
+    SingleChannelElement *sce1 = &cpe->ch[1];
+    if (!cpe->common_window)
+        return;
+
+    /** Scout out next nonzero bands */
+    ff_init_nextband_map(sce0, nextband0);
+    ff_init_nextband_map(sce1, nextband1);
+
+    prev_mid = sce0->sf_idx[0];
+    prev_side = sce1->sf_idx[0];
+    for (w = 0; w < sce0->ics.num_windows; w += sce0->ics.group_len[w]) {
+        start = 0;
+        for (g = 0; g < sce0->ics.num_swb; g++) {
+            float bmax = bval2bmax(g * 17.0f / sce0->ics.num_swb) / 0.0045f;
+            if (!cpe->is_mask[w*16+g])
+                cpe->ms_mask[w*16+g] = 0;
+            if (!sce0->zeroes[w*16+g] && !sce1->zeroes[w*16+g] && !cpe->is_mask[w*16+g]) {
+                float Mmax = 0.0f, Smax = 0.0f;
+
+                /* Must compute mid/side SF and book for the whole window group */
+                for (w2 = 0; w2 < sce0->ics.group_len[w]; w2++) {
+                    for (i = 0; i < sce0->ics.swb_sizes[g]; i++) {
+                        M[i] = (sce0->coeffs[start+(w+w2)*128+i]
+                              + sce1->coeffs[start+(w+w2)*128+i]) * 0.5;
+                        S[i] =  M[i]
+                              - sce1->coeffs[start+(w+w2)*128+i];
+                    }
+                    s->abs_pow34(M34, M, sce0->ics.swb_sizes[g]);
+                    s->abs_pow34(S34, S, sce0->ics.swb_sizes[g]);
+                    for (i = 0; i < sce0->ics.swb_sizes[g]; i++ ) {
+                        Mmax = FFMAX(Mmax, M34[i]);
+                        Smax = FFMAX(Smax, S34[i]);
+                    }
+                }
+
+                for (sid_sf_boost = 0; sid_sf_boost < 4; sid_sf_boost++) {
+                    float dist1 = 0.0f, dist2 = 0.0f;
+                    int B0 = 0, B1 = 0;
+                    int minidx;
+                    int mididx, sididx;
+                    int midcb, sidcb;
+
+                    minidx = FFMIN(sce0->sf_idx[w*16+g], sce1->sf_idx[w*16+g]);
+                    mididx = av_clip(minidx, 0, SCALE_MAX_POS - SCALE_DIV_512);
+                    sididx = av_clip(minidx - sid_sf_boost * 3, 0, SCALE_MAX_POS - SCALE_DIV_512);
+                    if (sce0->band_type[w*16+g] != NOISE_BT && sce1->band_type[w*16+g] != NOISE_BT
+                        && (   !ff_sfdelta_can_replace(sce0, nextband0, prev_mid, mididx, w*16+g)
+                            || !ff_sfdelta_can_replace(sce1, nextband1, prev_side, sididx, w*16+g))) {
+                        /* scalefactor range violation, bad stuff, will decrease quality unacceptably */
+                        continue;
+                    }
+
+                    midcb = find_min_book(Mmax, mididx);
+                    sidcb = find_min_book(Smax, sididx);
+
+                    /* No CB can be zero */
+                    midcb = FFMAX(1,midcb);
+                    sidcb = FFMAX(1,sidcb);
+
+                    for (w2 = 0; w2 < sce0->ics.group_len[w]; w2++) {
+                        FFPsyBand *band0 = &s->psy.ch[s->cur_channel+0].psy_bands[(w+w2)*16+g];
+                        FFPsyBand *band1 = &s->psy.ch[s->cur_channel+1].psy_bands[(w+w2)*16+g];
+                        float minthr = FFMIN(band0->threshold, band1->threshold);
+                        int b1,b2,b3,b4;
+                        for (i = 0; i < sce0->ics.swb_sizes[g]; i++) {
+                            M[i] = (sce0->coeffs[start+(w+w2)*128+i]
+                                  + sce1->coeffs[start+(w+w2)*128+i]) * 0.5;
+                            S[i] =  M[i]
+                                  - sce1->coeffs[start+(w+w2)*128+i];
+                        }
+
+                        s->abs_pow34(L34, sce0->coeffs+start+(w+w2)*128, sce0->ics.swb_sizes[g]);
+                        s->abs_pow34(R34, sce1->coeffs+start+(w+w2)*128, sce0->ics.swb_sizes[g]);
+                        s->abs_pow34(M34, M,                         sce0->ics.swb_sizes[g]);
+                        s->abs_pow34(S34, S,                         sce0->ics.swb_sizes[g]);
+                        dist1 += quantize_band_cost(s, &sce0->coeffs[start + (w+w2)*128],
+                                                    L34,
+                                                    sce0->ics.swb_sizes[g],
+                                                    sce0->sf_idx[w*16+g],
+                                                    sce0->band_type[w*16+g],
+                                                    lambda / band0->threshold, INFINITY, &b1, NULL, 0);
+                        dist1 += quantize_band_cost(s, &sce1->coeffs[start + (w+w2)*128],
+                                                    R34,
+                                                    sce1->ics.swb_sizes[g],
+                                                    sce1->sf_idx[w*16+g],
+                                                    sce1->band_type[w*16+g],
+                                                    lambda / band1->threshold, INFINITY, &b2, NULL, 0);
+                        dist2 += quantize_band_cost(s, M,
+                                                    M34,
+                                                    sce0->ics.swb_sizes[g],
+                                                    mididx,
+                                                    midcb,
+                                                    lambda / minthr, INFINITY, &b3, NULL, 0);
+                        dist2 += quantize_band_cost(s, S,
+                                                    S34,
+                                                    sce1->ics.swb_sizes[g],
+                                                    sididx,
+                                                    sidcb,
+                                                    mslambda / (minthr * bmax), INFINITY, &b4, NULL, 0);
+                        B0 += b1+b2;
+                        B1 += b3+b4;
+                        dist1 -= b1+b2;
+                        dist2 -= b3+b4;
+                    }
+                    cpe->ms_mask[w*16+g] = dist2 <= dist1 && B1 < B0;
+                    if (cpe->ms_mask[w*16+g]) {
+                        if (sce0->band_type[w*16+g] != NOISE_BT && sce1->band_type[w*16+g] != NOISE_BT) {
+                            sce0->sf_idx[w*16+g] = mididx;
+                            sce1->sf_idx[w*16+g] = sididx;
+                            sce0->band_type[w*16+g] = midcb;
+                            sce1->band_type[w*16+g] = sidcb;
+                        } else if ((sce0->band_type[w*16+g] != NOISE_BT) ^ (sce1->band_type[w*16+g] != NOISE_BT)) {
+                            /* ms_mask unneeded, and it confuses some decoders */
+                            cpe->ms_mask[w*16+g] = 0;
+                        }
+                        break;
+                    } else if (B1 > B0) {
+                        /* More boost won't fix this */
+                        break;
+                    }
+                }
+            }
+            if (!sce0->zeroes[w*16+g] && sce0->band_type[w*16+g] < RESERVED_BT)
+                prev_mid = sce0->sf_idx[w*16+g];
+            if (!sce1->zeroes[w*16+g] && !cpe->is_mask[w*16+g] && sce1->band_type[w*16+g] < RESERVED_BT)
+                prev_side = sce1->sf_idx[w*16+g];
+            start += sce0->ics.swb_sizes[g];
+        }
+    }
+}
+
+const AACCoefficientsEncoder ff_aac_coders[AAC_CODER_NB] = {
+    [AAC_CODER_ANMR] = {
+        search_for_quantizers_anmr,
+        encode_window_bands_info,
+        quantize_and_encode_band,
+        ff_aac_encode_tns_info,
+        ff_aac_encode_ltp_info,
+        ff_aac_encode_main_pred,
+        ff_aac_adjust_common_pred,
+        ff_aac_adjust_common_ltp,
+        ff_aac_apply_main_pred,
+        ff_aac_apply_tns,
+        ff_aac_update_ltp,
+        ff_aac_ltp_insert_new_frame,
+        set_special_band_scalefactors,
+        search_for_pns,
+        mark_pns,
+        ff_aac_search_for_tns,
+        ff_aac_search_for_ltp,
+        search_for_ms,
+        ff_aac_search_for_is,
+        ff_aac_search_for_pred,
+    },
+    [AAC_CODER_TWOLOOP] = {
+        search_for_quantizers_twoloop,
+        codebook_trellis_rate,
+        quantize_and_encode_band,
+        ff_aac_encode_tns_info,
+        ff_aac_encode_ltp_info,
+        ff_aac_encode_main_pred,
+        ff_aac_adjust_common_pred,
+        ff_aac_adjust_common_ltp,
+        ff_aac_apply_main_pred,
+        ff_aac_apply_tns,
+        ff_aac_update_ltp,
+        ff_aac_ltp_insert_new_frame,
+        set_special_band_scalefactors,
+        search_for_pns,
+        mark_pns,
+        ff_aac_search_for_tns,
+        ff_aac_search_for_ltp,
+        search_for_ms,
+        ff_aac_search_for_is,
+        ff_aac_search_for_pred,
+    },
+    [AAC_CODER_FAST] = {
+        search_for_quantizers_fast,
+        codebook_trellis_rate,
+        quantize_and_encode_band,
+        ff_aac_encode_tns_info,
+        ff_aac_encode_ltp_info,
+        ff_aac_encode_main_pred,
+        ff_aac_adjust_common_pred,
+        ff_aac_adjust_common_ltp,
+        ff_aac_apply_main_pred,
+        ff_aac_apply_tns,
+        ff_aac_update_ltp,
+        ff_aac_ltp_insert_new_frame,
+        set_special_band_scalefactors,
+        search_for_pns,
+        mark_pns,
+        ff_aac_search_for_tns,
+        ff_aac_search_for_ltp,
+        search_for_ms,
+        ff_aac_search_for_is,
+        ff_aac_search_for_pred,
+    },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aaccoder_trellis.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aaccoder_trellis.h
new file mode 100644
index 000000000..940ebf029
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aaccoder_trellis.h
@@ -0,0 +1,192 @@
+/*
+ * AAC encoder trellis codebook selector
+ * Copyright (C) 2008-2009 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder trellis codebook selector
+ * @author Konstantin Shishkov
+ */
+
+/**
+ * This file contains a template for the codebook_trellis_rate selector function.
+ * It needs to be provided, externally, as an already included declaration,
+ * the following functions from aacenc_quantization/util.h. They're not included
+ * explicitly here to make it possible to provide alternative implementations:
+ *  - quantize_band_cost_bits
+ *  - abs_pow34_v
+ */
+
+#ifndef AVCODEC_AACCODER_TRELLIS_H
+#define AVCODEC_AACCODER_TRELLIS_H
+
+#include <float.h>
+#include "libavutil/mathematics.h"
+#include "avcodec.h"
+#include "put_bits.h"
+#include "aac.h"
+#include "aacenc.h"
+#include "aactab.h"
+#include "aacenctab.h"
+
+/**
+ * structure used in optimal codebook search
+ */
+typedef struct TrellisBandCodingPath {
+    int prev_idx; ///< pointer to the previous path point
+    float cost;   ///< path cost
+    int run;
+} TrellisBandCodingPath;
+
+
+static void codebook_trellis_rate(AACEncContext *s, SingleChannelElement *sce,
+                                  int win, int group_len, const float lambda)
+{
+    TrellisBandCodingPath path[120][CB_TOT_ALL];
+    int w, swb, cb, start, size;
+    int i, j;
+    const int max_sfb  = sce->ics.max_sfb;
+    const int run_bits = sce->ics.num_windows == 1 ? 5 : 3;
+    const int run_esc  = (1 << run_bits) - 1;
+    int idx, ppos, count;
+    int stackrun[120], stackcb[120], stack_len;
+    float next_minbits = INFINITY;
+    int next_mincb = 0;
+
+    s->abs_pow34(s->scoefs, sce->coeffs, 1024);
+    start = win*128;
+    for (cb = 0; cb < CB_TOT_ALL; cb++) {
+        path[0][cb].cost     = run_bits+4;
+        path[0][cb].prev_idx = -1;
+        path[0][cb].run      = 0;
+    }
+    for (swb = 0; swb < max_sfb; swb++) {
+        size = sce->ics.swb_sizes[swb];
+        if (sce->zeroes[win*16 + swb]) {
+            float cost_stay_here = path[swb][0].cost;
+            float cost_get_here  = next_minbits + run_bits + 4;
+            if (   run_value_bits[sce->ics.num_windows == 8][path[swb][0].run]
+                != run_value_bits[sce->ics.num_windows == 8][path[swb][0].run+1])
+                cost_stay_here += run_bits;
+            if (cost_get_here < cost_stay_here) {
+                path[swb+1][0].prev_idx = next_mincb;
+                path[swb+1][0].cost     = cost_get_here;
+                path[swb+1][0].run      = 1;
+            } else {
+                path[swb+1][0].prev_idx = 0;
+                path[swb+1][0].cost     = cost_stay_here;
+                path[swb+1][0].run      = path[swb][0].run + 1;
+            }
+            next_minbits = path[swb+1][0].cost;
+            next_mincb = 0;
+            for (cb = 1; cb < CB_TOT_ALL; cb++) {
+                path[swb+1][cb].cost = 61450;
+                path[swb+1][cb].prev_idx = -1;
+                path[swb+1][cb].run = 0;
+            }
+        } else {
+            float minbits = next_minbits;
+            int mincb = next_mincb;
+            int startcb = sce->band_type[win*16+swb];
+            startcb = aac_cb_in_map[startcb];
+            next_minbits = INFINITY;
+            next_mincb = 0;
+            for (cb = 0; cb < startcb; cb++) {
+                path[swb+1][cb].cost = 61450;
+                path[swb+1][cb].prev_idx = -1;
+                path[swb+1][cb].run = 0;
+            }
+            for (cb = startcb; cb < CB_TOT_ALL; cb++) {
+                float cost_stay_here, cost_get_here;
+                float bits = 0.0f;
+                if (cb >= 12 && sce->band_type[win*16+swb] != aac_cb_out_map[cb]) {
+                    path[swb+1][cb].cost = 61450;
+                    path[swb+1][cb].prev_idx = -1;
+                    path[swb+1][cb].run = 0;
+                    continue;
+                }
+                for (w = 0; w < group_len; w++) {
+                    bits += quantize_band_cost_bits(s, &sce->coeffs[start + w*128],
+                                               &s->scoefs[start + w*128], size,
+                                               sce->sf_idx[win*16+swb],
+                                               aac_cb_out_map[cb],
+                                               0, INFINITY, NULL, NULL, 0);
+                }
+                cost_stay_here = path[swb][cb].cost + bits;
+                cost_get_here  = minbits            + bits + run_bits + 4;
+                if (   run_value_bits[sce->ics.num_windows == 8][path[swb][cb].run]
+                    != run_value_bits[sce->ics.num_windows == 8][path[swb][cb].run+1])
+                    cost_stay_here += run_bits;
+                if (cost_get_here < cost_stay_here) {
+                    path[swb+1][cb].prev_idx = mincb;
+                    path[swb+1][cb].cost     = cost_get_here;
+                    path[swb+1][cb].run      = 1;
+                } else {
+                    path[swb+1][cb].prev_idx = cb;
+                    path[swb+1][cb].cost     = cost_stay_here;
+                    path[swb+1][cb].run      = path[swb][cb].run + 1;
+                }
+                if (path[swb+1][cb].cost < next_minbits) {
+                    next_minbits = path[swb+1][cb].cost;
+                    next_mincb = cb;
+                }
+            }
+        }
+        start += sce->ics.swb_sizes[swb];
+    }
+
+    //convert resulting path from backward-linked list
+    stack_len = 0;
+    idx       = 0;
+    for (cb = 1; cb < CB_TOT_ALL; cb++)
+        if (path[max_sfb][cb].cost < path[max_sfb][idx].cost)
+            idx = cb;
+    ppos = max_sfb;
+    while (ppos > 0) {
+        av_assert1(idx >= 0);
+        cb = idx;
+        stackrun[stack_len] = path[ppos][cb].run;
+        stackcb [stack_len] = cb;
+        idx = path[ppos-path[ppos][cb].run+1][cb].prev_idx;
+        ppos -= path[ppos][cb].run;
+        stack_len++;
+    }
+    //perform actual band info encoding
+    start = 0;
+    for (i = stack_len - 1; i >= 0; i--) {
+        cb = aac_cb_out_map[stackcb[i]];
+        put_bits(&s->pb, 4, cb);
+        count = stackrun[i];
+        memset(sce->zeroes + win*16 + start, !cb, count);
+        //XXX: memset when band_type is also uint8_t
+        for (j = 0; j < count; j++) {
+            sce->band_type[win*16 + start] = cb;
+            start++;
+        }
+        while (count >= run_esc) {
+            put_bits(&s->pb, run_bits, run_esc);
+            count -= run_esc;
+        }
+        put_bits(&s->pb, run_bits, count);
+    }
+}
+
+
+#endif /* AVCODEC_AACCODER_TRELLIS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aaccoder_twoloop.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aaccoder_twoloop.h
new file mode 100644
index 000000000..8e1bc88a8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aaccoder_twoloop.h
@@ -0,0 +1,763 @@
+/*
+ * AAC encoder twoloop coder
+ * Copyright (C) 2008-2009 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder twoloop coder
+ * @author Konstantin Shishkov, Claudio Freire
+ */
+
+/**
+ * This file contains a template for the twoloop coder function.
+ * It needs to be provided, externally, as an already included declaration,
+ * the following functions from aacenc_quantization/util.h. They're not included
+ * explicitly here to make it possible to provide alternative implementations:
+ *  - quantize_band_cost
+ *  - abs_pow34_v
+ *  - find_max_val
+ *  - find_min_book
+ *  - find_form_factor
+ */
+
+#ifndef AVCODEC_AACCODER_TWOLOOP_H
+#define AVCODEC_AACCODER_TWOLOOP_H
+
+#include <float.h>
+#include "libavutil/mathematics.h"
+#include "mathops.h"
+#include "avcodec.h"
+#include "put_bits.h"
+#include "aac.h"
+#include "aacenc.h"
+#include "aactab.h"
+#include "aacenctab.h"
+
+/** Frequency in Hz for lower limit of noise substitution **/
+#define NOISE_LOW_LIMIT 4000
+
+#define sclip(x) av_clip(x,60,218)
+
+/* Reflects the cost to change codebooks */
+static inline int ff_pns_bits(SingleChannelElement *sce, int w, int g)
+{
+    return (!g || !sce->zeroes[w*16+g-1] || !sce->can_pns[w*16+g-1]) ? 9 : 5;
+}
+
+/**
+ * two-loop quantizers search taken from ISO 13818-7 Appendix C
+ */
+static void search_for_quantizers_twoloop(AVCodecContext *avctx,
+                                          AACEncContext *s,
+                                          SingleChannelElement *sce,
+                                          const float lambda)
+{
+    int start = 0, i, w, w2, g, recomprd;
+    int destbits = avctx->bit_rate * 1024.0 / avctx->sample_rate
+        / ((avctx->flags & AV_CODEC_FLAG_QSCALE) ? 2.0f : avctx->channels)
+        * (lambda / 120.f);
+    int refbits = destbits;
+    int toomanybits, toofewbits;
+    char nzs[128];
+    uint8_t nextband[128];
+    int maxsf[128], minsf[128];
+    float dists[128] = { 0 }, qenergies[128] = { 0 }, uplims[128], euplims[128], energies[128];
+    float maxvals[128], spread_thr_r[128];
+    float min_spread_thr_r, max_spread_thr_r;
+
+    /**
+     * rdlambda controls the maximum tolerated distortion. Twoloop
+     * will keep iterating until it fails to lower it or it reaches
+     * ulimit * rdlambda. Keeping it low increases quality on difficult
+     * signals, but lower it too much, and bits will be taken from weak
+     * signals, creating "holes". A balance is necessary.
+     * rdmax and rdmin specify the relative deviation from rdlambda
+     * allowed for tonality compensation
+     */
+    float rdlambda = av_clipf(2.0f * 120.f / lambda, 0.0625f, 16.0f);
+    const float nzslope = 1.5f;
+    float rdmin = 0.03125f;
+    float rdmax = 1.0f;
+
+    /**
+     * sfoffs controls an offset of optmium allocation that will be
+     * applied based on lambda. Keep it real and modest, the loop
+     * will take care of the rest, this just accelerates convergence
+     */
+    float sfoffs = av_clipf(log2f(120.0f / lambda) * 4.0f, -5, 10);
+
+    int fflag, minscaler, maxscaler, nminscaler;
+    int its  = 0;
+    int maxits = 30;
+    int allz = 0;
+    int tbits;
+    int cutoff = 1024;
+    int pns_start_pos;
+    int prev;
+
+    /**
+     * zeroscale controls a multiplier of the threshold, if band energy
+     * is below this, a zero is forced. Keep it lower than 1, unless
+     * low lambda is used, because energy < threshold doesn't mean there's
+     * no audible signal outright, it's just energy. Also make it rise
+     * slower than rdlambda, as rdscale has due compensation with
+     * noisy band depriorization below, whereas zeroing logic is rather dumb
+     */
+    float zeroscale;
+    if (lambda > 120.f) {
+        zeroscale = av_clipf(powf(120.f / lambda, 0.25f), 0.0625f, 1.0f);
+    } else {
+        zeroscale = 1.f;
+    }
+
+    if (s->psy.bitres.alloc >= 0) {
+        /**
+         * Psy granted us extra bits to use, from the reservoire
+         * adjust for lambda except what psy already did
+         */
+        destbits = s->psy.bitres.alloc
+            * (lambda / (avctx->global_quality ? avctx->global_quality : 120));
+    }
+
+    if (avctx->flags & AV_CODEC_FLAG_QSCALE) {
+        /**
+         * Constant Q-scale doesn't compensate MS coding on its own
+         * No need to be overly precise, this only controls RD
+         * adjustment CB limits when going overboard
+         */
+        if (s->options.mid_side && s->cur_type == TYPE_CPE)
+            destbits *= 2;
+
+        /**
+         * When using a constant Q-scale, don't adjust bits, just use RD
+         * Don't let it go overboard, though... 8x psy target is enough
+         */
+        toomanybits = 5800;
+        toofewbits = destbits / 16;
+
+        /** Don't offset scalers, just RD */
+        sfoffs = sce->ics.num_windows - 1;
+        rdlambda = sqrtf(rdlambda);
+
+        /** search further */
+        maxits *= 2;
+    } else {
+        /* When using ABR, be strict, but a reasonable leeway is
+         * critical to allow RC to smoothly track desired bitrate
+         * without sudden quality drops that cause audible artifacts.
+         * Symmetry is also desirable, to avoid systematic bias.
+         */
+        toomanybits = destbits + destbits/8;
+        toofewbits = destbits - destbits/8;
+
+        sfoffs = 0;
+        rdlambda = sqrtf(rdlambda);
+    }
+
+    /** and zero out above cutoff frequency */
+    {
+        int wlen = 1024 / sce->ics.num_windows;
+        int bandwidth;
+
+        /**
+         * Scale, psy gives us constant quality, this LP only scales
+         * bitrate by lambda, so we save bits on subjectively unimportant HF
+         * rather than increase quantization noise. Adjust nominal bitrate
+         * to effective bitrate according to encoding parameters,
+         * AAC_CUTOFF_FROM_BITRATE is calibrated for effective bitrate.
+         */
+        float rate_bandwidth_multiplier = 1.5f;
+        int frame_bit_rate = (avctx->flags & AV_CODEC_FLAG_QSCALE)
+            ? (refbits * rate_bandwidth_multiplier * avctx->sample_rate / 1024)
+            : (avctx->bit_rate / avctx->channels);
+
+        /** Compensate for extensions that increase efficiency */
+        if (s->options.pns || s->options.intensity_stereo)
+            frame_bit_rate *= 1.15f;
+
+        if (avctx->cutoff > 0) {
+            bandwidth = avctx->cutoff;
+        } else {
+            bandwidth = FFMAX(3000, AAC_CUTOFF_FROM_BITRATE(frame_bit_rate, 1, avctx->sample_rate));
+            s->psy.cutoff = bandwidth;
+        }
+
+        cutoff = bandwidth * 2 * wlen / avctx->sample_rate;
+        pns_start_pos = NOISE_LOW_LIMIT * 2 * wlen / avctx->sample_rate;
+    }
+
+    /**
+     * for values above this the decoder might end up in an endless loop
+     * due to always having more bits than what can be encoded.
+     */
+    destbits = FFMIN(destbits, 5800);
+    toomanybits = FFMIN(toomanybits, 5800);
+    toofewbits = FFMIN(toofewbits, 5800);
+    /**
+     * XXX: some heuristic to determine initial quantizers will reduce search time
+     * determine zero bands and upper distortion limits
+     */
+    min_spread_thr_r = -1;
+    max_spread_thr_r = -1;
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        for (g = start = 0;  g < sce->ics.num_swb; start += sce->ics.swb_sizes[g++]) {
+            int nz = 0;
+            float uplim = 0.0f, energy = 0.0f, spread = 0.0f;
+            for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];
+                if (start >= cutoff || band->energy <= (band->threshold * zeroscale) || band->threshold == 0.0f) {
+                    sce->zeroes[(w+w2)*16+g] = 1;
+                    continue;
+                }
+                nz = 1;
+            }
+            if (!nz) {
+                uplim = 0.0f;
+            } else {
+                nz = 0;
+                for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                    FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];
+                    if (band->energy <= (band->threshold * zeroscale) || band->threshold == 0.0f)
+                        continue;
+                    uplim += band->threshold;
+                    energy += band->energy;
+                    spread += band->spread;
+                    nz++;
+                }
+            }
+            uplims[w*16+g] = uplim;
+            energies[w*16+g] = energy;
+            nzs[w*16+g] = nz;
+            sce->zeroes[w*16+g] = !nz;
+            allz |= nz;
+            if (nz && sce->can_pns[w*16+g]) {
+                spread_thr_r[w*16+g] = energy * nz / (uplim * spread);
+                if (min_spread_thr_r < 0) {
+                    min_spread_thr_r = max_spread_thr_r = spread_thr_r[w*16+g];
+                } else {
+                    min_spread_thr_r = FFMIN(min_spread_thr_r, spread_thr_r[w*16+g]);
+                    max_spread_thr_r = FFMAX(max_spread_thr_r, spread_thr_r[w*16+g]);
+                }
+            }
+        }
+    }
+
+    /** Compute initial scalers */
+    minscaler = 65535;
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        for (g = 0;  g < sce->ics.num_swb; g++) {
+            if (sce->zeroes[w*16+g]) {
+                sce->sf_idx[w*16+g] = SCALE_ONE_POS;
+                continue;
+            }
+            /**
+             * log2f-to-distortion ratio is, technically, 2 (1.5db = 4, but it's power vs level so it's 2).
+             * But, as offsets are applied, low-frequency signals are too sensitive to the induced distortion,
+             * so we make scaling more conservative by choosing a lower log2f-to-distortion ratio, and thus
+             * more robust.
+             */
+            sce->sf_idx[w*16+g] = av_clip(
+                SCALE_ONE_POS
+                    + 1.75*log2f(FFMAX(0.00125f,uplims[w*16+g]) / sce->ics.swb_sizes[g])
+                    + sfoffs,
+                60, SCALE_MAX_POS);
+            minscaler = FFMIN(minscaler, sce->sf_idx[w*16+g]);
+        }
+    }
+
+    /** Clip */
+    minscaler = av_clip(minscaler, SCALE_ONE_POS - SCALE_DIV_512, SCALE_MAX_POS - SCALE_DIV_512);
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w])
+        for (g = 0;  g < sce->ics.num_swb; g++)
+            if (!sce->zeroes[w*16+g])
+                sce->sf_idx[w*16+g] = av_clip(sce->sf_idx[w*16+g], minscaler, minscaler + SCALE_MAX_DIFF - 1);
+
+    if (!allz)
+        return;
+    s->abs_pow34(s->scoefs, sce->coeffs, 1024);
+    ff_quantize_band_cost_cache_init(s);
+
+    for (i = 0; i < sizeof(minsf) / sizeof(minsf[0]); ++i)
+        minsf[i] = 0;
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        start = w*128;
+        for (g = 0;  g < sce->ics.num_swb; g++) {
+            const float *scaled = s->scoefs + start;
+            int minsfidx;
+            maxvals[w*16+g] = find_max_val(sce->ics.group_len[w], sce->ics.swb_sizes[g], scaled);
+            if (maxvals[w*16+g] > 0) {
+                minsfidx = coef2minsf(maxvals[w*16+g]);
+                for (w2 = 0; w2 < sce->ics.group_len[w]; w2++)
+                    minsf[(w+w2)*16+g] = minsfidx;
+            }
+            start += sce->ics.swb_sizes[g];
+        }
+    }
+
+    /**
+     * Scale uplims to match rate distortion to quality
+     * bu applying noisy band depriorization and tonal band priorization.
+     * Maxval-energy ratio gives us an idea of how noisy/tonal the band is.
+     * If maxval^2 ~ energy, then that band is mostly noise, and we can relax
+     * rate distortion requirements.
+     */
+    memcpy(euplims, uplims, sizeof(euplims));
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        /** psy already priorizes transients to some extent */
+        float de_psy_factor = (sce->ics.num_windows > 1) ? 8.0f / sce->ics.group_len[w] : 1.0f;
+        start = w*128;
+        for (g = 0;  g < sce->ics.num_swb; g++) {
+            if (nzs[g] > 0) {
+                float cleanup_factor = ff_sqrf(av_clipf(start / (cutoff * 0.75f), 1.0f, 2.0f));
+                float energy2uplim = find_form_factor(
+                    sce->ics.group_len[w], sce->ics.swb_sizes[g],
+                    uplims[w*16+g] / (nzs[g] * sce->ics.swb_sizes[w]),
+                    sce->coeffs + start,
+                    nzslope * cleanup_factor);
+                energy2uplim *= de_psy_factor;
+                if (!(avctx->flags & AV_CODEC_FLAG_QSCALE)) {
+                    /** In ABR, we need to priorize less and let rate control do its thing */
+                    energy2uplim = sqrtf(energy2uplim);
+                }
+                energy2uplim = FFMAX(0.015625f, FFMIN(1.0f, energy2uplim));
+                uplims[w*16+g] *= av_clipf(rdlambda * energy2uplim, rdmin, rdmax)
+                                  * sce->ics.group_len[w];
+
+                energy2uplim = find_form_factor(
+                    sce->ics.group_len[w], sce->ics.swb_sizes[g],
+                    uplims[w*16+g] / (nzs[g] * sce->ics.swb_sizes[w]),
+                    sce->coeffs + start,
+                    2.0f);
+                energy2uplim *= de_psy_factor;
+                if (!(avctx->flags & AV_CODEC_FLAG_QSCALE)) {
+                    /** In ABR, we need to priorize less and let rate control do its thing */
+                    energy2uplim = sqrtf(energy2uplim);
+                }
+                energy2uplim = FFMAX(0.015625f, FFMIN(1.0f, energy2uplim));
+                euplims[w*16+g] *= av_clipf(rdlambda * energy2uplim * sce->ics.group_len[w],
+                    0.5f, 1.0f);
+            }
+            start += sce->ics.swb_sizes[g];
+        }
+    }
+
+    for (i = 0; i < sizeof(maxsf) / sizeof(maxsf[0]); ++i)
+        maxsf[i] = SCALE_MAX_POS;
+
+    //perform two-loop search
+    //outer loop - improve quality
+    do {
+        //inner loop - quantize spectrum to fit into given number of bits
+        int overdist;
+        int qstep = its ? 1 : 32;
+        do {
+            int changed = 0;
+            prev = -1;
+            recomprd = 0;
+            tbits = 0;
+            for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+                start = w*128;
+                for (g = 0;  g < sce->ics.num_swb; g++) {
+                    const float *coefs = &sce->coeffs[start];
+                    const float *scaled = &s->scoefs[start];
+                    int bits = 0;
+                    int cb;
+                    float dist = 0.0f;
+                    float qenergy = 0.0f;
+
+                    if (sce->zeroes[w*16+g] || sce->sf_idx[w*16+g] >= 218) {
+                        start += sce->ics.swb_sizes[g];
+                        if (sce->can_pns[w*16+g]) {
+                            /** PNS isn't free */
+                            tbits += ff_pns_bits(sce, w, g);
+                        }
+                        continue;
+                    }
+                    cb = find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]);
+                    for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                        int b;
+                        float sqenergy;
+                        dist += quantize_band_cost_cached(s, w + w2, g, coefs + w2*128,
+                                                   scaled + w2*128,
+                                                   sce->ics.swb_sizes[g],
+                                                   sce->sf_idx[w*16+g],
+                                                   cb,
+                                                   1.0f,
+                                                   INFINITY,
+                                                   &b, &sqenergy,
+                                                   0);
+                        bits += b;
+                        qenergy += sqenergy;
+                    }
+                    dists[w*16+g] = dist - bits;
+                    qenergies[w*16+g] = qenergy;
+                    if (prev != -1) {
+                        int sfdiff = av_clip(sce->sf_idx[w*16+g] - prev + SCALE_DIFF_ZERO, 0, 2*SCALE_MAX_DIFF);
+                        bits += ff_aac_scalefactor_bits[sfdiff];
+                    }
+                    tbits += bits;
+                    start += sce->ics.swb_sizes[g];
+                    prev = sce->sf_idx[w*16+g];
+                }
+            }
+            if (tbits > toomanybits) {
+                recomprd = 1;
+                for (i = 0; i < 128; i++) {
+                    if (sce->sf_idx[i] < (SCALE_MAX_POS - SCALE_DIV_512)) {
+                        int maxsf_i = (tbits > 5800) ? SCALE_MAX_POS : maxsf[i];
+                        int new_sf = FFMIN(maxsf_i, sce->sf_idx[i] + qstep);
+                        if (new_sf != sce->sf_idx[i]) {
+                            sce->sf_idx[i] = new_sf;
+                            changed = 1;
+                        }
+                    }
+                }
+            } else if (tbits < toofewbits) {
+                recomprd = 1;
+                for (i = 0; i < 128; i++) {
+                    if (sce->sf_idx[i] > SCALE_ONE_POS) {
+                        int new_sf = FFMAX3(minsf[i], SCALE_ONE_POS, sce->sf_idx[i] - qstep);
+                        if (new_sf != sce->sf_idx[i]) {
+                            sce->sf_idx[i] = new_sf;
+                            changed = 1;
+                        }
+                    }
+                }
+            }
+            qstep >>= 1;
+            if (!qstep && tbits > toomanybits && sce->sf_idx[0] < 217 && changed)
+                qstep = 1;
+        } while (qstep);
+
+        overdist = 1;
+        fflag = tbits < toofewbits;
+        for (i = 0; i < 2 && (overdist || recomprd); ++i) {
+            if (recomprd) {
+                /** Must recompute distortion */
+                prev = -1;
+                tbits = 0;
+                for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+                    start = w*128;
+                    for (g = 0;  g < sce->ics.num_swb; g++) {
+                        const float *coefs = sce->coeffs + start;
+                        const float *scaled = s->scoefs + start;
+                        int bits = 0;
+                        int cb;
+                        float dist = 0.0f;
+                        float qenergy = 0.0f;
+
+                        if (sce->zeroes[w*16+g] || sce->sf_idx[w*16+g] >= 218) {
+                            start += sce->ics.swb_sizes[g];
+                            if (sce->can_pns[w*16+g]) {
+                                /** PNS isn't free */
+                                tbits += ff_pns_bits(sce, w, g);
+                            }
+                            continue;
+                        }
+                        cb = find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]);
+                        for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                            int b;
+                            float sqenergy;
+                            dist += quantize_band_cost_cached(s, w + w2, g, coefs + w2*128,
+                                                    scaled + w2*128,
+                                                    sce->ics.swb_sizes[g],
+                                                    sce->sf_idx[w*16+g],
+                                                    cb,
+                                                    1.0f,
+                                                    INFINITY,
+                                                    &b, &sqenergy,
+                                                    0);
+                            bits += b;
+                            qenergy += sqenergy;
+                        }
+                        dists[w*16+g] = dist - bits;
+                        qenergies[w*16+g] = qenergy;
+                        if (prev != -1) {
+                            int sfdiff = av_clip(sce->sf_idx[w*16+g] - prev + SCALE_DIFF_ZERO, 0, 2*SCALE_MAX_DIFF);
+                            bits += ff_aac_scalefactor_bits[sfdiff];
+                        }
+                        tbits += bits;
+                        start += sce->ics.swb_sizes[g];
+                        prev = sce->sf_idx[w*16+g];
+                    }
+                }
+            }
+            if (!i && s->options.pns && its > maxits/2 && tbits > toofewbits) {
+                float maxoverdist = 0.0f;
+                float ovrfactor = 1.f+(maxits-its)*16.f/maxits;
+                overdist = recomprd = 0;
+                for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+                    for (g = start = 0;  g < sce->ics.num_swb; start += sce->ics.swb_sizes[g++]) {
+                        if (!sce->zeroes[w*16+g] && sce->sf_idx[w*16+g] > SCALE_ONE_POS && dists[w*16+g] > uplims[w*16+g]*ovrfactor) {
+                            float ovrdist = dists[w*16+g] / FFMAX(uplims[w*16+g],euplims[w*16+g]);
+                            maxoverdist = FFMAX(maxoverdist, ovrdist);
+                            overdist++;
+                        }
+                    }
+                }
+                if (overdist) {
+                    /* We have overdistorted bands, trade for zeroes (that can be noise)
+                     * Zero the bands in the lowest 1.25% spread-energy-threshold ranking
+                     */
+                    float minspread = max_spread_thr_r;
+                    float maxspread = min_spread_thr_r;
+                    float zspread;
+                    int zeroable = 0;
+                    int zeroed = 0;
+                    int maxzeroed, zloop;
+                    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+                        for (g = start = 0;  g < sce->ics.num_swb; start += sce->ics.swb_sizes[g++]) {
+                            if (start >= pns_start_pos && !sce->zeroes[w*16+g] && sce->can_pns[w*16+g]) {
+                                minspread = FFMIN(minspread, spread_thr_r[w*16+g]);
+                                maxspread = FFMAX(maxspread, spread_thr_r[w*16+g]);
+                                zeroable++;
+                            }
+                        }
+                    }
+                    zspread = (maxspread-minspread) * 0.0125f + minspread;
+                    /* Don't PNS everything even if allowed. It suppresses bit starvation signals from RC,
+                     * and forced the hand of the later search_for_pns step.
+                     * Instead, PNS a fraction of the spread_thr_r range depending on how starved for bits we are,
+                     * and leave further PNSing to search_for_pns if worthwhile.
+                     */
+                    zspread = FFMIN3(min_spread_thr_r * 8.f, zspread,
+                        ((toomanybits - tbits) * min_spread_thr_r + (tbits - toofewbits) * max_spread_thr_r) / (toomanybits - toofewbits + 1));
+                    maxzeroed = FFMIN(zeroable, FFMAX(1, (zeroable * its + maxits - 1) / (2 * maxits)));
+                    for (zloop = 0; zloop < 2; zloop++) {
+                        /* Two passes: first distorted stuff - two birds in one shot and all that,
+                         * then anything viable. Viable means not zero, but either CB=zero-able
+                         * (too high SF), not SF <= 1 (that means we'd be operating at very high
+                         * quality, we don't want PNS when doing VHQ), PNS allowed, and within
+                         * the lowest ranking percentile.
+                         */
+                        float loopovrfactor = (zloop) ? 1.0f : ovrfactor;
+                        int loopminsf = (zloop) ? (SCALE_ONE_POS - SCALE_DIV_512) : SCALE_ONE_POS;
+                        int mcb;
+                        for (g = sce->ics.num_swb-1; g > 0 && zeroed < maxzeroed; g--) {
+                            if (sce->ics.swb_offset[g] < pns_start_pos)
+                                continue;
+                            for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+                                if (!sce->zeroes[w*16+g] && sce->can_pns[w*16+g] && spread_thr_r[w*16+g] <= zspread
+                                    && sce->sf_idx[w*16+g] > loopminsf
+                                    && (dists[w*16+g] > loopovrfactor*uplims[w*16+g] || !(mcb = find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]))
+                                        || (mcb <= 1 && dists[w*16+g] > FFMIN(uplims[w*16+g], euplims[w*16+g]))) ) {
+                                    sce->zeroes[w*16+g] = 1;
+                                    sce->band_type[w*16+g] = 0;
+                                    zeroed++;
+                                }
+                            }
+                        }
+                    }
+                    if (zeroed)
+                        recomprd = fflag = 1;
+                } else {
+                    overdist = 0;
+                }
+            }
+        }
+
+        minscaler = SCALE_MAX_POS;
+        maxscaler = 0;
+        for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+            for (g = 0;  g < sce->ics.num_swb; g++) {
+                if (!sce->zeroes[w*16+g]) {
+                    minscaler = FFMIN(minscaler, sce->sf_idx[w*16+g]);
+                    maxscaler = FFMAX(maxscaler, sce->sf_idx[w*16+g]);
+                }
+            }
+        }
+
+        minscaler = nminscaler = av_clip(minscaler, SCALE_ONE_POS - SCALE_DIV_512, SCALE_MAX_POS - SCALE_DIV_512);
+        prev = -1;
+        for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+            /** Start with big steps, end up fine-tunning */
+            int depth = (its > maxits/2) ? ((its > maxits*2/3) ? 1 : 3) : 10;
+            int edepth = depth+2;
+            float uplmax = its / (maxits*0.25f) + 1.0f;
+            uplmax *= (tbits > destbits) ? FFMIN(2.0f, tbits / (float)FFMAX(1,destbits)) : 1.0f;
+            start = w * 128;
+            for (g = 0; g < sce->ics.num_swb; g++) {
+                int prevsc = sce->sf_idx[w*16+g];
+                if (prev < 0 && !sce->zeroes[w*16+g])
+                    prev = sce->sf_idx[0];
+                if (!sce->zeroes[w*16+g]) {
+                    const float *coefs = sce->coeffs + start;
+                    const float *scaled = s->scoefs + start;
+                    int cmb = find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]);
+                    int mindeltasf = FFMAX(0, prev - SCALE_MAX_DIFF);
+                    int maxdeltasf = FFMIN(SCALE_MAX_POS - SCALE_DIV_512, prev + SCALE_MAX_DIFF);
+                    if ((!cmb || dists[w*16+g] > uplims[w*16+g]) && sce->sf_idx[w*16+g] > FFMAX(mindeltasf, minsf[w*16+g])) {
+                        /* Try to make sure there is some energy in every nonzero band
+                         * NOTE: This algorithm must be forcibly imbalanced, pushing harder
+                         *  on holes or more distorted bands at first, otherwise there's
+                         *  no net gain (since the next iteration will offset all bands
+                         *  on the opposite direction to compensate for extra bits)
+                         */
+                        for (i = 0; i < edepth && sce->sf_idx[w*16+g] > mindeltasf; ++i) {
+                            int cb, bits;
+                            float dist, qenergy;
+                            int mb = find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]-1);
+                            cb = find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]);
+                            dist = qenergy = 0.f;
+                            bits = 0;
+                            if (!cb) {
+                                maxsf[w*16+g] = FFMIN(sce->sf_idx[w*16+g]-1, maxsf[w*16+g]);
+                            } else if (i >= depth && dists[w*16+g] < euplims[w*16+g]) {
+                                break;
+                            }
+                            /* !g is the DC band, it's important, since quantization error here
+                             * applies to less than a cycle, it creates horrible intermodulation
+                             * distortion if it doesn't stick to what psy requests
+                             */
+                            if (!g && sce->ics.num_windows > 1 && dists[w*16+g] >= euplims[w*16+g])
+                                maxsf[w*16+g] = FFMIN(sce->sf_idx[w*16+g], maxsf[w*16+g]);
+                            for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                                int b;
+                                float sqenergy;
+                                dist += quantize_band_cost_cached(s, w + w2, g, coefs + w2*128,
+                                                        scaled + w2*128,
+                                                        sce->ics.swb_sizes[g],
+                                                        sce->sf_idx[w*16+g]-1,
+                                                        cb,
+                                                        1.0f,
+                                                        INFINITY,
+                                                        &b, &sqenergy,
+                                                        0);
+                                bits += b;
+                                qenergy += sqenergy;
+                            }
+                            sce->sf_idx[w*16+g]--;
+                            dists[w*16+g] = dist - bits;
+                            qenergies[w*16+g] = qenergy;
+                            if (mb && (sce->sf_idx[w*16+g] < mindeltasf || (
+                                    (dists[w*16+g] < FFMIN(uplmax*uplims[w*16+g], euplims[w*16+g]))
+                                    && (fabsf(qenergies[w*16+g]-energies[w*16+g]) < euplims[w*16+g])
+                                ) )) {
+                                break;
+                            }
+                        }
+                    } else if (tbits > toofewbits && sce->sf_idx[w*16+g] < FFMIN(maxdeltasf, maxsf[w*16+g])
+                            && (dists[w*16+g] < FFMIN(euplims[w*16+g], uplims[w*16+g]))
+                            && (fabsf(qenergies[w*16+g]-energies[w*16+g]) < euplims[w*16+g])
+                        ) {
+                        /** Um... over target. Save bits for more important stuff. */
+                        for (i = 0; i < depth && sce->sf_idx[w*16+g] < maxdeltasf; ++i) {
+                            int cb, bits;
+                            float dist, qenergy;
+                            cb = find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]+1);
+                            if (cb > 0) {
+                                dist = qenergy = 0.f;
+                                bits = 0;
+                                for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                                    int b;
+                                    float sqenergy;
+                                    dist += quantize_band_cost_cached(s, w + w2, g, coefs + w2*128,
+                                                            scaled + w2*128,
+                                                            sce->ics.swb_sizes[g],
+                                                            sce->sf_idx[w*16+g]+1,
+                                                            cb,
+                                                            1.0f,
+                                                            INFINITY,
+                                                            &b, &sqenergy,
+                                                            0);
+                                    bits += b;
+                                    qenergy += sqenergy;
+                                }
+                                dist -= bits;
+                                if (dist < FFMIN(euplims[w*16+g], uplims[w*16+g])) {
+                                    sce->sf_idx[w*16+g]++;
+                                    dists[w*16+g] = dist;
+                                    qenergies[w*16+g] = qenergy;
+                                } else {
+                                    break;
+                                }
+                            } else {
+                                maxsf[w*16+g] = FFMIN(sce->sf_idx[w*16+g], maxsf[w*16+g]);
+                                break;
+                            }
+                        }
+                    }
+                    prev = sce->sf_idx[w*16+g] = av_clip(sce->sf_idx[w*16+g], mindeltasf, maxdeltasf);
+                    if (sce->sf_idx[w*16+g] != prevsc)
+                        fflag = 1;
+                    nminscaler = FFMIN(nminscaler, sce->sf_idx[w*16+g]);
+                    sce->band_type[w*16+g] = find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]);
+                }
+                start += sce->ics.swb_sizes[g];
+            }
+        }
+
+        /** SF difference limit violation risk. Must re-clamp. */
+        prev = -1;
+        for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+            for (g = 0; g < sce->ics.num_swb; g++) {
+                if (!sce->zeroes[w*16+g]) {
+                    int prevsf = sce->sf_idx[w*16+g];
+                    if (prev < 0)
+                        prev = prevsf;
+                    sce->sf_idx[w*16+g] = av_clip(sce->sf_idx[w*16+g], prev - SCALE_MAX_DIFF, prev + SCALE_MAX_DIFF);
+                    sce->band_type[w*16+g] = find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]);
+                    prev = sce->sf_idx[w*16+g];
+                    if (!fflag && prevsf != sce->sf_idx[w*16+g])
+                        fflag = 1;
+                }
+            }
+        }
+
+        its++;
+    } while (fflag && its < maxits);
+
+    /** Scout out next nonzero bands */
+    ff_init_nextband_map(sce, nextband);
+
+    prev = -1;
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        /** Make sure proper codebooks are set */
+        for (g = 0; g < sce->ics.num_swb; g++) {
+            if (!sce->zeroes[w*16+g]) {
+                sce->band_type[w*16+g] = find_min_book(maxvals[w*16+g], sce->sf_idx[w*16+g]);
+                if (sce->band_type[w*16+g] <= 0) {
+                    if (!ff_sfdelta_can_remove_band(sce, nextband, prev, w*16+g)) {
+                        /** Cannot zero out, make sure it's not attempted */
+                        sce->band_type[w*16+g] = 1;
+                    } else {
+                        sce->zeroes[w*16+g] = 1;
+                        sce->band_type[w*16+g] = 0;
+                    }
+                }
+            } else {
+                sce->band_type[w*16+g] = 0;
+            }
+            /** Check that there's no SF delta range violations */
+            if (!sce->zeroes[w*16+g]) {
+                if (prev != -1) {
+                    av_unused int sfdiff = sce->sf_idx[w*16+g] - prev + SCALE_DIFF_ZERO;
+                    av_assert1(sfdiff >= 0 && sfdiff <= 2*SCALE_MAX_DIFF);
+                } else if (sce->zeroes[0]) {
+                    /** Set global gain to something useful */
+                    sce->sf_idx[0] = sce->sf_idx[w*16+g];
+                }
+                prev = sce->sf_idx[w*16+g];
+            }
+        }
+    }
+}
+
+#endif /* AVCODEC_AACCODER_TWOLOOP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacdec.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacdec.c
new file mode 100644
index 000000000..c606ad40a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacdec.c
@@ -0,0 +1,591 @@
+/*
+ * AAC decoder
+ * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
+ * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
+ * Copyright (c) 2008-2013 Alex Converse <alex.converse@gmail.com>
+ *
+ * AAC LATM decoder
+ * Copyright (c) 2008-2010 Paul Kendall <paul@kcbbs.gen.nz>
+ * Copyright (c) 2010      Janne Grunau <janne-libav@jannau.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC decoder
+ * @author Oded Shimon  ( ods15 ods15 dyndns org )
+ * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
+ */
+
+#define FFT_FLOAT 1
+#define FFT_FIXED_32 0
+#define USE_FIXED 0
+
+#include "libavutil/float_dsp.h"
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "internal.h"
+#include "get_bits.h"
+#include "fft.h"
+#include "mdct15.h"
+#include "lpc.h"
+#include "kbdwin.h"
+#include "sinewin.h"
+
+#include "aac.h"
+#include "aactab.h"
+#include "aacdectab.h"
+#include "adts_header.h"
+#include "cbrt_data.h"
+#include "sbr.h"
+#include "aacsbr.h"
+#include "mpeg4audio.h"
+#include "profiles.h"
+#include "libavutil/intfloat.h"
+
+#include <errno.h>
+#include <math.h>
+#include <stdint.h>
+#include <string.h>
+
+#if ARCH_ARM
+#   include "arm/aac.h"
+#elif ARCH_MIPS
+#   include "mips/aacdec_mips.h"
+#endif
+
+static av_always_inline void reset_predict_state(PredictorState *ps)
+{
+    ps->r0   = 0.0f;
+    ps->r1   = 0.0f;
+    ps->cor0 = 0.0f;
+    ps->cor1 = 0.0f;
+    ps->var0 = 1.0f;
+    ps->var1 = 1.0f;
+}
+
+#ifndef VMUL2
+static inline float *VMUL2(float *dst, const float *v, unsigned idx,
+                           const float *scale)
+{
+    float s = *scale;
+    *dst++ = v[idx    & 15] * s;
+    *dst++ = v[idx>>4 & 15] * s;
+    return dst;
+}
+#endif
+
+#ifndef VMUL4
+static inline float *VMUL4(float *dst, const float *v, unsigned idx,
+                           const float *scale)
+{
+    float s = *scale;
+    *dst++ = v[idx    & 3] * s;
+    *dst++ = v[idx>>2 & 3] * s;
+    *dst++ = v[idx>>4 & 3] * s;
+    *dst++ = v[idx>>6 & 3] * s;
+    return dst;
+}
+#endif
+
+#ifndef VMUL2S
+static inline float *VMUL2S(float *dst, const float *v, unsigned idx,
+                            unsigned sign, const float *scale)
+{
+    union av_intfloat32 s0, s1;
+
+    s0.f = s1.f = *scale;
+    s0.i ^= sign >> 1 << 31;
+    s1.i ^= sign      << 31;
+
+    *dst++ = v[idx    & 15] * s0.f;
+    *dst++ = v[idx>>4 & 15] * s1.f;
+
+    return dst;
+}
+#endif
+
+#ifndef VMUL4S
+static inline float *VMUL4S(float *dst, const float *v, unsigned idx,
+                            unsigned sign, const float *scale)
+{
+    unsigned nz = idx >> 12;
+    union av_intfloat32 s = { .f = *scale };
+    union av_intfloat32 t;
+
+    t.i = s.i ^ (sign & 1U<<31);
+    *dst++ = v[idx    & 3] * t.f;
+
+    sign <<= nz & 1; nz >>= 1;
+    t.i = s.i ^ (sign & 1U<<31);
+    *dst++ = v[idx>>2 & 3] * t.f;
+
+    sign <<= nz & 1; nz >>= 1;
+    t.i = s.i ^ (sign & 1U<<31);
+    *dst++ = v[idx>>4 & 3] * t.f;
+
+    sign <<= nz & 1;
+    t.i = s.i ^ (sign & 1U<<31);
+    *dst++ = v[idx>>6 & 3] * t.f;
+
+    return dst;
+}
+#endif
+
+static av_always_inline float flt16_round(float pf)
+{
+    union av_intfloat32 tmp;
+    tmp.f = pf;
+    tmp.i = (tmp.i + 0x00008000U) & 0xFFFF0000U;
+    return tmp.f;
+}
+
+static av_always_inline float flt16_even(float pf)
+{
+    union av_intfloat32 tmp;
+    tmp.f = pf;
+    tmp.i = (tmp.i + 0x00007FFFU + (tmp.i & 0x00010000U >> 16)) & 0xFFFF0000U;
+    return tmp.f;
+}
+
+static av_always_inline float flt16_trunc(float pf)
+{
+    union av_intfloat32 pun;
+    pun.f = pf;
+    pun.i &= 0xFFFF0000U;
+    return pun.f;
+}
+
+static av_always_inline void predict(PredictorState *ps, float *coef,
+                                     int output_enable)
+{
+    const float a     = 0.953125; // 61.0 / 64
+    const float alpha = 0.90625;  // 29.0 / 32
+    float e0, e1;
+    float pv;
+    float k1, k2;
+    float   r0 = ps->r0,     r1 = ps->r1;
+    float cor0 = ps->cor0, cor1 = ps->cor1;
+    float var0 = ps->var0, var1 = ps->var1;
+
+    k1 = var0 > 1 ? cor0 * flt16_even(a / var0) : 0;
+    k2 = var1 > 1 ? cor1 * flt16_even(a / var1) : 0;
+
+    pv = flt16_round(k1 * r0 + k2 * r1);
+    if (output_enable)
+        *coef += pv;
+
+    e0 = *coef;
+    e1 = e0 - k1 * r0;
+
+    ps->cor1 = flt16_trunc(alpha * cor1 + r1 * e1);
+    ps->var1 = flt16_trunc(alpha * var1 + 0.5f * (r1 * r1 + e1 * e1));
+    ps->cor0 = flt16_trunc(alpha * cor0 + r0 * e0);
+    ps->var0 = flt16_trunc(alpha * var0 + 0.5f * (r0 * r0 + e0 * e0));
+
+    ps->r1 = flt16_trunc(a * (r0 - k1 * e0));
+    ps->r0 = flt16_trunc(a * e0);
+}
+
+/**
+ * Apply dependent channel coupling (applied before IMDCT).
+ *
+ * @param   index   index into coupling gain array
+ */
+static void apply_dependent_coupling(AACContext *ac,
+                                     SingleChannelElement *target,
+                                     ChannelElement *cce, int index)
+{
+    IndividualChannelStream *ics = &cce->ch[0].ics;
+    const uint16_t *offsets = ics->swb_offset;
+    float *dest = target->coeffs;
+    const float *src = cce->ch[0].coeffs;
+    int g, i, group, k, idx = 0;
+    if (ac->oc[1].m4ac.object_type == AOT_AAC_LTP) {
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "Dependent coupling is not supported together with LTP\n");
+        return;
+    }
+    for (g = 0; g < ics->num_window_groups; g++) {
+        for (i = 0; i < ics->max_sfb; i++, idx++) {
+            if (cce->ch[0].band_type[idx] != ZERO_BT) {
+                const float gain = cce->coup.gain[index][idx];
+                for (group = 0; group < ics->group_len[g]; group++) {
+                    for (k = offsets[i]; k < offsets[i + 1]; k++) {
+                        // FIXME: SIMDify
+                        dest[group * 128 + k] += gain * src[group * 128 + k];
+                    }
+                }
+            }
+        }
+        dest += ics->group_len[g] * 128;
+        src  += ics->group_len[g] * 128;
+    }
+}
+
+/**
+ * Apply independent channel coupling (applied after IMDCT).
+ *
+ * @param   index   index into coupling gain array
+ */
+static void apply_independent_coupling(AACContext *ac,
+                                       SingleChannelElement *target,
+                                       ChannelElement *cce, int index)
+{
+    const float gain = cce->coup.gain[index][0];
+    const float *src = cce->ch[0].ret;
+    float *dest = target->ret;
+    const int len = 1024 << (ac->oc[1].m4ac.sbr == 1);
+
+    ac->fdsp->vector_fmac_scalar(dest, src, gain, len);
+}
+
+#include "aacdec_template.c"
+
+#define LOAS_SYNC_WORD   0x2b7       ///< 11 bits LOAS sync word
+
+struct LATMContext {
+    AACContext aac_ctx;     ///< containing AACContext
+    int initialized;        ///< initialized after a valid extradata was seen
+
+    // parser data
+    int audio_mux_version_A; ///< LATM syntax version
+    int frame_length_type;   ///< 0/1 variable/fixed frame length
+    int frame_length;        ///< frame length for fixed frame length
+};
+
+static inline uint32_t latm_get_value(GetBitContext *b)
+{
+    int length = get_bits(b, 2);
+
+    return get_bits_long(b, (length+1)*8);
+}
+
+static int latm_decode_audio_specific_config(struct LATMContext *latmctx,
+                                             GetBitContext *gb, int asclen)
+{
+    AACContext *ac        = &latmctx->aac_ctx;
+    AVCodecContext *avctx = ac->avctx;
+    MPEG4AudioConfig m4ac = { 0 };
+    GetBitContext gbc;
+    int config_start_bit  = get_bits_count(gb);
+    int sync_extension    = 0;
+    int bits_consumed, esize, i;
+
+    if (asclen > 0) {
+        sync_extension = 1;
+        asclen         = FFMIN(asclen, get_bits_left(gb));
+        init_get_bits(&gbc, gb->buffer, config_start_bit + asclen);
+        skip_bits_long(&gbc, config_start_bit);
+    } else if (asclen == 0) {
+        gbc = *gb;
+    } else {
+        return AVERROR_INVALIDDATA;
+    }
+
+    if (get_bits_left(gb) <= 0)
+        return AVERROR_INVALIDDATA;
+
+    bits_consumed = decode_audio_specific_config_gb(NULL, avctx, &m4ac,
+                                                    &gbc, config_start_bit,
+                                                    sync_extension);
+
+    if (bits_consumed < config_start_bit)
+        return AVERROR_INVALIDDATA;
+    bits_consumed -= config_start_bit;
+
+    if (asclen == 0)
+      asclen = bits_consumed;
+
+    if (!latmctx->initialized ||
+        ac->oc[1].m4ac.sample_rate != m4ac.sample_rate ||
+        ac->oc[1].m4ac.chan_config != m4ac.chan_config) {
+
+        if (latmctx->initialized) {
+            av_log(avctx, AV_LOG_INFO, "audio config changed (sample_rate=%d, chan_config=%d)\n", m4ac.sample_rate, m4ac.chan_config);
+        } else {
+            av_log(avctx, AV_LOG_DEBUG, "initializing latmctx\n");
+        }
+        latmctx->initialized = 0;
+
+        esize = (asclen + 7) / 8;
+
+        if (avctx->extradata_size < esize) {
+            av_free(avctx->extradata);
+            avctx->extradata = av_malloc(esize + AV_INPUT_BUFFER_PADDING_SIZE);
+            if (!avctx->extradata)
+                return AVERROR(ENOMEM);
+        }
+
+        avctx->extradata_size = esize;
+        gbc = *gb;
+        for (i = 0; i < esize; i++) {
+          avctx->extradata[i] = get_bits(&gbc, 8);
+        }
+        memset(avctx->extradata+esize, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+    }
+    skip_bits_long(gb, asclen);
+
+    return 0;
+}
+
+static int read_stream_mux_config(struct LATMContext *latmctx,
+                                  GetBitContext *gb)
+{
+    int ret, audio_mux_version = get_bits(gb, 1);
+
+    latmctx->audio_mux_version_A = 0;
+    if (audio_mux_version)
+        latmctx->audio_mux_version_A = get_bits(gb, 1);
+
+    if (!latmctx->audio_mux_version_A) {
+
+        if (audio_mux_version)
+            latm_get_value(gb);                 // taraFullness
+
+        skip_bits(gb, 1);                       // allStreamSameTimeFraming
+        skip_bits(gb, 6);                       // numSubFrames
+        // numPrograms
+        if (get_bits(gb, 4)) {                  // numPrograms
+            avpriv_request_sample(latmctx->aac_ctx.avctx, "Multiple programs");
+            return AVERROR_PATCHWELCOME;
+        }
+
+        // for each program (which there is only one in DVB)
+
+        // for each layer (which there is only one in DVB)
+        if (get_bits(gb, 3)) {                   // numLayer
+            avpriv_request_sample(latmctx->aac_ctx.avctx, "Multiple layers");
+            return AVERROR_PATCHWELCOME;
+        }
+
+        // for all but first stream: use_same_config = get_bits(gb, 1);
+        if (!audio_mux_version) {
+            if ((ret = latm_decode_audio_specific_config(latmctx, gb, 0)) < 0)
+                return ret;
+        } else {
+            int ascLen = latm_get_value(gb);
+            if ((ret = latm_decode_audio_specific_config(latmctx, gb, ascLen)) < 0)
+                return ret;
+        }
+
+        latmctx->frame_length_type = get_bits(gb, 3);
+        switch (latmctx->frame_length_type) {
+        case 0:
+            skip_bits(gb, 8);       // latmBufferFullness
+            break;
+        case 1:
+            latmctx->frame_length = get_bits(gb, 9);
+            break;
+        case 3:
+        case 4:
+        case 5:
+            skip_bits(gb, 6);       // CELP frame length table index
+            break;
+        case 6:
+        case 7:
+            skip_bits(gb, 1);       // HVXC frame length table index
+            break;
+        }
+
+        if (get_bits(gb, 1)) {                  // other data
+            if (audio_mux_version) {
+                latm_get_value(gb);             // other_data_bits
+            } else {
+                int esc;
+                do {
+                    esc = get_bits(gb, 1);
+                    skip_bits(gb, 8);
+                } while (esc);
+            }
+        }
+
+        if (get_bits(gb, 1))                     // crc present
+            skip_bits(gb, 8);                    // config_crc
+    }
+
+    return 0;
+}
+
+static int read_payload_length_info(struct LATMContext *ctx, GetBitContext *gb)
+{
+    uint8_t tmp;
+
+    if (ctx->frame_length_type == 0) {
+        int mux_slot_length = 0;
+        do {
+            if (get_bits_left(gb) < 8)
+                return AVERROR_INVALIDDATA;
+            tmp = get_bits(gb, 8);
+            mux_slot_length += tmp;
+        } while (tmp == 255);
+        return mux_slot_length;
+    } else if (ctx->frame_length_type == 1) {
+        return ctx->frame_length;
+    } else if (ctx->frame_length_type == 3 ||
+               ctx->frame_length_type == 5 ||
+               ctx->frame_length_type == 7) {
+        skip_bits(gb, 2);          // mux_slot_length_coded
+    }
+    return 0;
+}
+
+static int read_audio_mux_element(struct LATMContext *latmctx,
+                                  GetBitContext *gb)
+{
+    int err;
+    uint8_t use_same_mux = get_bits(gb, 1);
+    if (!use_same_mux) {
+        if ((err = read_stream_mux_config(latmctx, gb)) < 0)
+            return err;
+    } else if (!latmctx->aac_ctx.avctx->extradata) {
+        av_log(latmctx->aac_ctx.avctx, AV_LOG_DEBUG,
+               "no decoder config found\n");
+        return 1;
+    }
+    if (latmctx->audio_mux_version_A == 0) {
+        int mux_slot_length_bytes = read_payload_length_info(latmctx, gb);
+        if (mux_slot_length_bytes < 0 || mux_slot_length_bytes * 8LL > get_bits_left(gb)) {
+            av_log(latmctx->aac_ctx.avctx, AV_LOG_ERROR, "incomplete frame\n");
+            return AVERROR_INVALIDDATA;
+        } else if (mux_slot_length_bytes * 8 + 256 < get_bits_left(gb)) {
+            av_log(latmctx->aac_ctx.avctx, AV_LOG_ERROR,
+                   "frame length mismatch %d << %d\n",
+                   mux_slot_length_bytes * 8, get_bits_left(gb));
+            return AVERROR_INVALIDDATA;
+        }
+    }
+    return 0;
+}
+
+
+static int latm_decode_frame(AVCodecContext *avctx, void *out,
+                             int *got_frame_ptr, AVPacket *avpkt)
+{
+    struct LATMContext *latmctx = avctx->priv_data;
+    int                 muxlength, err;
+    GetBitContext       gb;
+
+    if ((err = init_get_bits8(&gb, avpkt->data, avpkt->size)) < 0)
+        return err;
+
+    // check for LOAS sync word
+    if (get_bits(&gb, 11) != LOAS_SYNC_WORD)
+        return AVERROR_INVALIDDATA;
+
+    muxlength = get_bits(&gb, 13) + 3;
+    // not enough data, the parser should have sorted this out
+    if (muxlength > avpkt->size)
+        return AVERROR_INVALIDDATA;
+
+    if ((err = read_audio_mux_element(latmctx, &gb)))
+        return (err < 0) ? err : avpkt->size;
+
+    if (!latmctx->initialized) {
+        if (!avctx->extradata) {
+            *got_frame_ptr = 0;
+            return avpkt->size;
+        } else {
+            push_output_configuration(&latmctx->aac_ctx);
+            if ((err = decode_audio_specific_config(
+                    &latmctx->aac_ctx, avctx, &latmctx->aac_ctx.oc[1].m4ac,
+                    avctx->extradata, avctx->extradata_size*8LL, 1)) < 0) {
+                pop_output_configuration(&latmctx->aac_ctx);
+                return err;
+            }
+            latmctx->initialized = 1;
+        }
+    }
+
+    if (show_bits(&gb, 12) == 0xfff) {
+        av_log(latmctx->aac_ctx.avctx, AV_LOG_ERROR,
+               "ADTS header detected, probably as result of configuration "
+               "misparsing\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    switch (latmctx->aac_ctx.oc[1].m4ac.object_type) {
+    case AOT_ER_AAC_LC:
+    case AOT_ER_AAC_LTP:
+    case AOT_ER_AAC_LD:
+    case AOT_ER_AAC_ELD:
+        err = aac_decode_er_frame(avctx, out, got_frame_ptr, &gb);
+        break;
+    default:
+        err = aac_decode_frame_int(avctx, out, got_frame_ptr, &gb, avpkt);
+    }
+    if (err < 0)
+        return err;
+
+    return muxlength;
+}
+
+static av_cold int latm_decode_init(AVCodecContext *avctx)
+{
+    struct LATMContext *latmctx = avctx->priv_data;
+    int ret = aac_decode_init(avctx);
+
+    if (avctx->extradata_size > 0)
+        latmctx->initialized = !ret;
+
+    return ret;
+}
+
+AVCodec ff_aac_decoder = {
+    .name            = "aac",
+    .long_name       = NULL_IF_CONFIG_SMALL("AAC (Advanced Audio Coding)"),
+    .type            = AVMEDIA_TYPE_AUDIO,
+    .id              = AV_CODEC_ID_AAC,
+    .priv_data_size  = sizeof(AACContext),
+    .init            = aac_decode_init,
+    .close           = aac_decode_close,
+    .decode          = aac_decode_frame,
+    .sample_fmts     = (const enum AVSampleFormat[]) {
+        AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE
+    },
+    .capabilities    = AV_CODEC_CAP_CHANNEL_CONF | AV_CODEC_CAP_DR1,
+    .caps_internal   = FF_CODEC_CAP_INIT_THREADSAFE,
+    .channel_layouts = aac_channel_layout,
+    .flush = flush,
+    .priv_class      = &aac_decoder_class,
+    .profiles        = NULL_IF_CONFIG_SMALL(ff_aac_profiles),
+};
+
+/*
+    Note: This decoder filter is intended to decode LATM streams transferred
+    in MPEG transport streams which only contain one program.
+    To do a more complex LATM demuxing a separate LATM demuxer should be used.
+*/
+AVCodec ff_aac_latm_decoder = {
+    .name            = "aac_latm",
+    .long_name       = NULL_IF_CONFIG_SMALL("AAC LATM (Advanced Audio Coding LATM syntax)"),
+    .type            = AVMEDIA_TYPE_AUDIO,
+    .id              = AV_CODEC_ID_AAC_LATM,
+    .priv_data_size  = sizeof(struct LATMContext),
+    .init            = latm_decode_init,
+    .close           = aac_decode_close,
+    .decode          = latm_decode_frame,
+    .sample_fmts     = (const enum AVSampleFormat[]) {
+        AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE
+    },
+    .capabilities    = AV_CODEC_CAP_CHANNEL_CONF | AV_CODEC_CAP_DR1,
+    .caps_internal   = FF_CODEC_CAP_INIT_THREADSAFE,
+    .channel_layouts = aac_channel_layout,
+    .flush = flush,
+    .profiles        = NULL_IF_CONFIG_SMALL(ff_aac_profiles),
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacdec_fixed.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacdec_fixed.c
new file mode 100644
index 000000000..1d0142fdb
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacdec_fixed.c
@@ -0,0 +1,468 @@
+/*
+ * Copyright (c) 2013
+ *      MIPS Technologies, Inc., California.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * AAC decoder fixed-point implementation
+ *
+ * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
+ * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC decoder
+ * @author Oded Shimon  ( ods15 ods15 dyndns org )
+ * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
+ *
+ * Fixed point implementation
+ * @author Stanislav Ocovaj ( stanislav.ocovaj imgtec com )
+ */
+
+#define FFT_FLOAT 0
+#define FFT_FIXED_32 1
+#define USE_FIXED 1
+
+#include "libavutil/fixed_dsp.h"
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "internal.h"
+#include "get_bits.h"
+#include "fft.h"
+#include "lpc.h"
+#include "kbdwin.h"
+#include "sinewin.h"
+
+#include "aac.h"
+#include "aactab.h"
+#include "aacdectab.h"
+#include "adts_header.h"
+#include "cbrt_data.h"
+#include "sbr.h"
+#include "aacsbr.h"
+#include "mpeg4audio.h"
+#include "profiles.h"
+#include "libavutil/intfloat.h"
+
+#include <math.h>
+#include <string.h>
+
+static av_always_inline void reset_predict_state(PredictorState *ps)
+{
+    ps->r0.mant   = 0;
+    ps->r0.exp   = 0;
+    ps->r1.mant   = 0;
+    ps->r1.exp   = 0;
+    ps->cor0.mant = 0;
+    ps->cor0.exp = 0;
+    ps->cor1.mant = 0;
+    ps->cor1.exp = 0;
+    ps->var0.mant = 0x20000000;
+    ps->var0.exp = 1;
+    ps->var1.mant = 0x20000000;
+    ps->var1.exp = 1;
+}
+
+static const int exp2tab[4] = { Q31(1.0000000000/2), Q31(1.1892071150/2), Q31(1.4142135624/2), Q31(1.6817928305/2) };  // 2^0, 2^0.25, 2^0.5, 2^0.75
+
+static inline int *DEC_SPAIR(int *dst, unsigned idx)
+{
+    dst[0] = (idx & 15) - 4;
+    dst[1] = (idx >> 4 & 15) - 4;
+
+    return dst + 2;
+}
+
+static inline int *DEC_SQUAD(int *dst, unsigned idx)
+{
+    dst[0] = (idx & 3) - 1;
+    dst[1] = (idx >> 2 & 3) - 1;
+    dst[2] = (idx >> 4 & 3) - 1;
+    dst[3] = (idx >> 6 & 3) - 1;
+
+    return dst + 4;
+}
+
+static inline int *DEC_UPAIR(int *dst, unsigned idx, unsigned sign)
+{
+    dst[0] = (idx & 15) * (1 - (sign & 0xFFFFFFFE));
+    dst[1] = (idx >> 4 & 15) * (1 - ((sign & 1) * 2));
+
+    return dst + 2;
+}
+
+static inline int *DEC_UQUAD(int *dst, unsigned idx, unsigned sign)
+{
+    unsigned nz = idx >> 12;
+
+    dst[0] = (idx & 3) * (1 + (((int)sign >> 31) * 2));
+    sign <<= nz & 1;
+    nz >>= 1;
+    dst[1] = (idx >> 2 & 3) * (1 + (((int)sign >> 31) * 2));
+    sign <<= nz & 1;
+    nz >>= 1;
+    dst[2] = (idx >> 4 & 3) * (1 + (((int)sign >> 31) * 2));
+    sign <<= nz & 1;
+    nz >>= 1;
+    dst[3] = (idx >> 6 & 3) * (1 + (((int)sign >> 31) * 2));
+
+    return dst + 4;
+}
+
+static void vector_pow43(int *coefs, int len)
+{
+    int i, coef;
+
+    for (i=0; i<len; i++) {
+        coef = coefs[i];
+        if (coef < 0)
+            coef = -(int)ff_cbrt_tab_fixed[-coef];
+        else
+            coef = (int)ff_cbrt_tab_fixed[coef];
+        coefs[i] = coef;
+    }
+}
+
+static void subband_scale(int *dst, int *src, int scale, int offset, int len, void *log_context)
+{
+    int ssign = scale < 0 ? -1 : 1;
+    int s = FFABS(scale);
+    unsigned int round;
+    int i, out, c = exp2tab[s & 3];
+
+    s = offset - (s >> 2);
+
+    if (s > 31) {
+        for (i=0; i<len; i++) {
+            dst[i] = 0;
+        }
+    } else if (s > 0) {
+        round = 1 << (s-1);
+        for (i=0; i<len; i++) {
+            out = (int)(((int64_t)src[i] * c) >> 32);
+            dst[i] = ((int)(out+round) >> s) * ssign;
+        }
+    } else if (s > -32) {
+        s = s + 32;
+        round = 1U << (s-1);
+        for (i=0; i<len; i++) {
+            out = (int)((int64_t)((int64_t)src[i] * c + round) >> s);
+            dst[i] = out * (unsigned)ssign;
+        }
+    } else {
+        av_log(log_context, AV_LOG_ERROR, "Overflow in subband_scale()\n");
+    }
+}
+
+static void noise_scale(int *coefs, int scale, int band_energy, int len)
+{
+    int s = -scale;
+    unsigned int round;
+    int i, out, c = exp2tab[s & 3];
+    int nlz = 0;
+
+    av_assert0(s >= 0);
+    while (band_energy > 0x7fff) {
+        band_energy >>= 1;
+        nlz++;
+    }
+    c /= band_energy;
+    s = 21 + nlz - (s >> 2);
+
+    if (s > 31) {
+        for (i=0; i<len; i++) {
+            coefs[i] = 0;
+        }
+    } else if (s >= 0) {
+        round = s ? 1 << (s-1) : 0;
+        for (i=0; i<len; i++) {
+            out = (int)(((int64_t)coefs[i] * c) >> 32);
+            coefs[i] = -((int)(out+round) >> s);
+        }
+    }
+    else {
+        s = s + 32;
+        if (s > 0) {
+            round = 1 << (s-1);
+            for (i=0; i<len; i++) {
+                out = (int)((int64_t)((int64_t)coefs[i] * c + round) >> s);
+                coefs[i] = -out;
+            }
+        } else {
+            for (i=0; i<len; i++)
+                coefs[i] = -(int64_t)coefs[i] * c * (1 << -s);
+        }
+    }
+}
+
+static av_always_inline SoftFloat flt16_round(SoftFloat pf)
+{
+    SoftFloat tmp;
+    int s;
+
+    tmp.exp = pf.exp;
+    s = pf.mant >> 31;
+    tmp.mant = (pf.mant ^ s) - s;
+    tmp.mant = (tmp.mant + 0x00200000U) & 0xFFC00000U;
+    tmp.mant = (tmp.mant ^ s) - s;
+
+    return tmp;
+}
+
+static av_always_inline SoftFloat flt16_even(SoftFloat pf)
+{
+    SoftFloat tmp;
+    int s;
+
+    tmp.exp = pf.exp;
+    s = pf.mant >> 31;
+    tmp.mant = (pf.mant ^ s) - s;
+    tmp.mant = (tmp.mant + 0x001FFFFFU + (tmp.mant & 0x00400000U >> 16)) & 0xFFC00000U;
+    tmp.mant = (tmp.mant ^ s) - s;
+
+    return tmp;
+}
+
+static av_always_inline SoftFloat flt16_trunc(SoftFloat pf)
+{
+    SoftFloat pun;
+    int s;
+
+    pun.exp = pf.exp;
+    s = pf.mant >> 31;
+    pun.mant = (pf.mant ^ s) - s;
+    pun.mant = pun.mant & 0xFFC00000U;
+    pun.mant = (pun.mant ^ s) - s;
+
+    return pun;
+}
+
+static av_always_inline void predict(PredictorState *ps, int *coef,
+                                     int output_enable)
+{
+    const SoftFloat a     = { 1023410176, 0 };  // 61.0 / 64
+    const SoftFloat alpha = {  973078528, 0 };  // 29.0 / 32
+    SoftFloat e0, e1;
+    SoftFloat pv;
+    SoftFloat k1, k2;
+    SoftFloat   r0 = ps->r0,     r1 = ps->r1;
+    SoftFloat cor0 = ps->cor0, cor1 = ps->cor1;
+    SoftFloat var0 = ps->var0, var1 = ps->var1;
+    SoftFloat tmp;
+
+    if (var0.exp > 1 || (var0.exp == 1 && var0.mant > 0x20000000)) {
+        k1 = av_mul_sf(cor0, flt16_even(av_div_sf(a, var0)));
+    }
+    else {
+        k1.mant = 0;
+        k1.exp = 0;
+    }
+
+    if (var1.exp > 1 || (var1.exp == 1 && var1.mant > 0x20000000)) {
+        k2 = av_mul_sf(cor1, flt16_even(av_div_sf(a, var1)));
+    }
+    else {
+        k2.mant = 0;
+        k2.exp = 0;
+    }
+
+    tmp = av_mul_sf(k1, r0);
+    pv = flt16_round(av_add_sf(tmp, av_mul_sf(k2, r1)));
+    if (output_enable) {
+        int shift = 28 - pv.exp;
+
+        if (shift < 31) {
+            if (shift > 0) {
+                *coef += (unsigned)((pv.mant + (1 << (shift - 1))) >> shift);
+            } else
+                *coef += (unsigned)pv.mant << -shift;
+        }
+    }
+
+    e0 = av_int2sf(*coef, 2);
+    e1 = av_sub_sf(e0, tmp);
+
+    ps->cor1 = flt16_trunc(av_add_sf(av_mul_sf(alpha, cor1), av_mul_sf(r1, e1)));
+    tmp = av_add_sf(av_mul_sf(r1, r1), av_mul_sf(e1, e1));
+    tmp.exp--;
+    ps->var1 = flt16_trunc(av_add_sf(av_mul_sf(alpha, var1), tmp));
+    ps->cor0 = flt16_trunc(av_add_sf(av_mul_sf(alpha, cor0), av_mul_sf(r0, e0)));
+    tmp = av_add_sf(av_mul_sf(r0, r0), av_mul_sf(e0, e0));
+    tmp.exp--;
+    ps->var0 = flt16_trunc(av_add_sf(av_mul_sf(alpha, var0), tmp));
+
+    ps->r1 = flt16_trunc(av_mul_sf(a, av_sub_sf(r0, av_mul_sf(k1, e0))));
+    ps->r0 = flt16_trunc(av_mul_sf(a, e0));
+}
+
+
+static const int cce_scale_fixed[8] = {
+    Q30(1.0),          //2^(0/8)
+    Q30(1.0905077327), //2^(1/8)
+    Q30(1.1892071150), //2^(2/8)
+    Q30(1.2968395547), //2^(3/8)
+    Q30(1.4142135624), //2^(4/8)
+    Q30(1.5422108254), //2^(5/8)
+    Q30(1.6817928305), //2^(6/8)
+    Q30(1.8340080864), //2^(7/8)
+};
+
+/**
+ * Apply dependent channel coupling (applied before IMDCT).
+ *
+ * @param   index   index into coupling gain array
+ */
+static void apply_dependent_coupling_fixed(AACContext *ac,
+                                     SingleChannelElement *target,
+                                     ChannelElement *cce, int index)
+{
+    IndividualChannelStream *ics = &cce->ch[0].ics;
+    const uint16_t *offsets = ics->swb_offset;
+    int *dest = target->coeffs;
+    const int *src = cce->ch[0].coeffs;
+    int g, i, group, k, idx = 0;
+    if (ac->oc[1].m4ac.object_type == AOT_AAC_LTP) {
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "Dependent coupling is not supported together with LTP\n");
+        return;
+    }
+    for (g = 0; g < ics->num_window_groups; g++) {
+        for (i = 0; i < ics->max_sfb; i++, idx++) {
+            if (cce->ch[0].band_type[idx] != ZERO_BT) {
+                const int gain = cce->coup.gain[index][idx];
+                int shift, round, c, tmp;
+
+                if (gain < 0) {
+                    c = -cce_scale_fixed[-gain & 7];
+                    shift = (-gain-1024) >> 3;
+                }
+                else {
+                    c = cce_scale_fixed[gain & 7];
+                    shift = (gain-1024) >> 3;
+                }
+
+                if (shift < -31) {
+                    // Nothing to do
+                } else if (shift < 0) {
+                    shift = -shift;
+                    round = 1 << (shift - 1);
+
+                    for (group = 0; group < ics->group_len[g]; group++) {
+                        for (k = offsets[i]; k < offsets[i + 1]; k++) {
+                            tmp = (int)(((int64_t)src[group * 128 + k] * c + \
+                                       (int64_t)0x1000000000) >> 37);
+                            dest[group * 128 + k] += (tmp + (int64_t)round) >> shift;
+                        }
+                    }
+                }
+                else {
+                    for (group = 0; group < ics->group_len[g]; group++) {
+                        for (k = offsets[i]; k < offsets[i + 1]; k++) {
+                            tmp = (int)(((int64_t)src[group * 128 + k] * c + \
+                                        (int64_t)0x1000000000) >> 37);
+                            dest[group * 128 + k] += tmp * (1U << shift);
+                        }
+                    }
+                }
+            }
+        }
+        dest += ics->group_len[g] * 128;
+        src  += ics->group_len[g] * 128;
+    }
+}
+
+/**
+ * Apply independent channel coupling (applied after IMDCT).
+ *
+ * @param   index   index into coupling gain array
+ */
+static void apply_independent_coupling_fixed(AACContext *ac,
+                                       SingleChannelElement *target,
+                                       ChannelElement *cce, int index)
+{
+    int i, c, shift, round, tmp;
+    const int gain = cce->coup.gain[index][0];
+    const int *src = cce->ch[0].ret;
+    unsigned int *dest = target->ret;
+    const int len = 1024 << (ac->oc[1].m4ac.sbr == 1);
+
+    c = cce_scale_fixed[gain & 7];
+    shift = (gain-1024) >> 3;
+    if (shift < -31) {
+        return;
+    } else if (shift < 0) {
+        shift = -shift;
+        round = 1 << (shift - 1);
+
+        for (i = 0; i < len; i++) {
+            tmp = (int)(((int64_t)src[i] * c + (int64_t)0x1000000000) >> 37);
+            dest[i] += (tmp + round) >> shift;
+        }
+    }
+    else {
+      for (i = 0; i < len; i++) {
+          tmp = (int)(((int64_t)src[i] * c + (int64_t)0x1000000000) >> 37);
+          dest[i] += tmp * (1U << shift);
+      }
+    }
+}
+
+#include "aacdec_template.c"
+
+AVCodec ff_aac_fixed_decoder = {
+    .name            = "aac_fixed",
+    .long_name       = NULL_IF_CONFIG_SMALL("AAC (Advanced Audio Coding)"),
+    .type            = AVMEDIA_TYPE_AUDIO,
+    .id              = AV_CODEC_ID_AAC,
+    .priv_data_size  = sizeof(AACContext),
+    .init            = aac_decode_init,
+    .close           = aac_decode_close,
+    .decode          = aac_decode_frame,
+    .sample_fmts     = (const enum AVSampleFormat[]) {
+        AV_SAMPLE_FMT_S32P, AV_SAMPLE_FMT_NONE
+    },
+    .capabilities    = AV_CODEC_CAP_CHANNEL_CONF | AV_CODEC_CAP_DR1,
+    .caps_internal   = FF_CODEC_CAP_INIT_THREADSAFE,
+    .channel_layouts = aac_channel_layout,
+    .profiles        = NULL_IF_CONFIG_SMALL(ff_aac_profiles),
+    .flush = flush,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacdec_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacdec_template.c
new file mode 100644
index 000000000..28765c768
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacdec_template.c
@@ -0,0 +1,3450 @@
+/*
+ * AAC decoder
+ * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
+ * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
+ * Copyright (c) 2008-2013 Alex Converse <alex.converse@gmail.com>
+ *
+ * AAC LATM decoder
+ * Copyright (c) 2008-2010 Paul Kendall <paul@kcbbs.gen.nz>
+ * Copyright (c) 2010      Janne Grunau <janne-libav@jannau.net>
+ *
+ * AAC decoder fixed-point implementation
+ * Copyright (c) 2013
+ *      MIPS Technologies, Inc., California.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC decoder
+ * @author Oded Shimon  ( ods15 ods15 dyndns org )
+ * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
+ *
+ * AAC decoder fixed-point implementation
+ * @author Stanislav Ocovaj ( stanislav.ocovaj imgtec com )
+ * @author Nedeljko Babic ( nedeljko.babic imgtec com )
+ */
+
+/*
+ * supported tools
+ *
+ * Support?                     Name
+ * N (code in SoC repo)         gain control
+ * Y                            block switching
+ * Y                            window shapes - standard
+ * N                            window shapes - Low Delay
+ * Y                            filterbank - standard
+ * N (code in SoC repo)         filterbank - Scalable Sample Rate
+ * Y                            Temporal Noise Shaping
+ * Y                            Long Term Prediction
+ * Y                            intensity stereo
+ * Y                            channel coupling
+ * Y                            frequency domain prediction
+ * Y                            Perceptual Noise Substitution
+ * Y                            Mid/Side stereo
+ * N                            Scalable Inverse AAC Quantization
+ * N                            Frequency Selective Switch
+ * N                            upsampling filter
+ * Y                            quantization & coding - AAC
+ * N                            quantization & coding - TwinVQ
+ * N                            quantization & coding - BSAC
+ * N                            AAC Error Resilience tools
+ * N                            Error Resilience payload syntax
+ * N                            Error Protection tool
+ * N                            CELP
+ * N                            Silence Compression
+ * N                            HVXC
+ * N                            HVXC 4kbits/s VR
+ * N                            Structured Audio tools
+ * N                            Structured Audio Sample Bank Format
+ * N                            MIDI
+ * N                            Harmonic and Individual Lines plus Noise
+ * N                            Text-To-Speech Interface
+ * Y                            Spectral Band Replication
+ * Y (not in this code)         Layer-1
+ * Y (not in this code)         Layer-2
+ * Y (not in this code)         Layer-3
+ * N                            SinuSoidal Coding (Transient, Sinusoid, Noise)
+ * Y                            Parametric Stereo
+ * N                            Direct Stream Transfer
+ * Y  (not in fixed point code) Enhanced AAC Low Delay (ER AAC ELD)
+ *
+ * Note: - HE AAC v1 comprises LC AAC with Spectral Band Replication.
+ *       - HE AAC v2 comprises LC AAC with Spectral Band Replication and
+           Parametric Stereo.
+ */
+
+#include "libavutil/thread.h"
+
+static VLC vlc_scalefactors;
+static VLC vlc_spectral[11];
+
+static int output_configure(AACContext *ac,
+                            uint8_t layout_map[MAX_ELEM_ID*4][3], int tags,
+                            enum OCStatus oc_type, int get_new_frame);
+
+#define overread_err "Input buffer exhausted before END element found\n"
+
+static int count_channels(uint8_t (*layout)[3], int tags)
+{
+    int i, sum = 0;
+    for (i = 0; i < tags; i++) {
+        int syn_ele = layout[i][0];
+        int pos     = layout[i][2];
+        sum += (1 + (syn_ele == TYPE_CPE)) *
+               (pos != AAC_CHANNEL_OFF && pos != AAC_CHANNEL_CC);
+    }
+    return sum;
+}
+
+/**
+ * Check for the channel element in the current channel position configuration.
+ * If it exists, make sure the appropriate element is allocated and map the
+ * channel order to match the internal FFmpeg channel layout.
+ *
+ * @param   che_pos current channel position configuration
+ * @param   type channel element type
+ * @param   id channel element id
+ * @param   channels count of the number of channels in the configuration
+ *
+ * @return  Returns error status. 0 - OK, !0 - error
+ */
+static av_cold int che_configure(AACContext *ac,
+                                 enum ChannelPosition che_pos,
+                                 int type, int id, int *channels)
+{
+    if (*channels >= MAX_CHANNELS)
+        return AVERROR_INVALIDDATA;
+    if (che_pos) {
+        if (!ac->che[type][id]) {
+            if (!(ac->che[type][id] = av_mallocz(sizeof(ChannelElement))))
+                return AVERROR(ENOMEM);
+            AAC_RENAME(ff_aac_sbr_ctx_init)(ac, &ac->che[type][id]->sbr, type);
+        }
+        if (type != TYPE_CCE) {
+            if (*channels >= MAX_CHANNELS - (type == TYPE_CPE || (type == TYPE_SCE && ac->oc[1].m4ac.ps == 1))) {
+                av_log(ac->avctx, AV_LOG_ERROR, "Too many channels\n");
+                return AVERROR_INVALIDDATA;
+            }
+            ac->output_element[(*channels)++] = &ac->che[type][id]->ch[0];
+            if (type == TYPE_CPE ||
+                (type == TYPE_SCE && ac->oc[1].m4ac.ps == 1)) {
+                ac->output_element[(*channels)++] = &ac->che[type][id]->ch[1];
+            }
+        }
+    } else {
+        if (ac->che[type][id])
+            AAC_RENAME(ff_aac_sbr_ctx_close)(&ac->che[type][id]->sbr);
+        av_freep(&ac->che[type][id]);
+    }
+    return 0;
+}
+
+static int frame_configure_elements(AVCodecContext *avctx)
+{
+    AACContext *ac = avctx->priv_data;
+    int type, id, ch, ret;
+
+    /* set channel pointers to internal buffers by default */
+    for (type = 0; type < 4; type++) {
+        for (id = 0; id < MAX_ELEM_ID; id++) {
+            ChannelElement *che = ac->che[type][id];
+            if (che) {
+                che->ch[0].ret = che->ch[0].ret_buf;
+                che->ch[1].ret = che->ch[1].ret_buf;
+            }
+        }
+    }
+
+    /* get output buffer */
+    av_frame_unref(ac->frame);
+    if (!avctx->channels)
+        return 1;
+
+    ac->frame->nb_samples = 2048;
+    if ((ret = ff_get_buffer(avctx, ac->frame, 0)) < 0)
+        return ret;
+
+    /* map output channel pointers to AVFrame data */
+    for (ch = 0; ch < avctx->channels; ch++) {
+        if (ac->output_element[ch])
+            ac->output_element[ch]->ret = (INTFLOAT *)ac->frame->extended_data[ch];
+    }
+
+    return 0;
+}
+
+struct elem_to_channel {
+    uint64_t av_position;
+    uint8_t syn_ele;
+    uint8_t elem_id;
+    uint8_t aac_position;
+};
+
+static int assign_pair(struct elem_to_channel e2c_vec[MAX_ELEM_ID],
+                       uint8_t (*layout_map)[3], int offset, uint64_t left,
+                       uint64_t right, int pos)
+{
+    if (layout_map[offset][0] == TYPE_CPE) {
+        e2c_vec[offset] = (struct elem_to_channel) {
+            .av_position  = left | right,
+            .syn_ele      = TYPE_CPE,
+            .elem_id      = layout_map[offset][1],
+            .aac_position = pos
+        };
+        return 1;
+    } else {
+        e2c_vec[offset] = (struct elem_to_channel) {
+            .av_position  = left,
+            .syn_ele      = TYPE_SCE,
+            .elem_id      = layout_map[offset][1],
+            .aac_position = pos
+        };
+        e2c_vec[offset + 1] = (struct elem_to_channel) {
+            .av_position  = right,
+            .syn_ele      = TYPE_SCE,
+            .elem_id      = layout_map[offset + 1][1],
+            .aac_position = pos
+        };
+        return 2;
+    }
+}
+
+static int count_paired_channels(uint8_t (*layout_map)[3], int tags, int pos,
+                                 int *current)
+{
+    int num_pos_channels = 0;
+    int first_cpe        = 0;
+    int sce_parity       = 0;
+    int i;
+    for (i = *current; i < tags; i++) {
+        if (layout_map[i][2] != pos)
+            break;
+        if (layout_map[i][0] == TYPE_CPE) {
+            if (sce_parity) {
+                if (pos == AAC_CHANNEL_FRONT && !first_cpe) {
+                    sce_parity = 0;
+                } else {
+                    return -1;
+                }
+            }
+            num_pos_channels += 2;
+            first_cpe         = 1;
+        } else {
+            num_pos_channels++;
+            sce_parity ^= 1;
+        }
+    }
+    if (sce_parity &&
+        ((pos == AAC_CHANNEL_FRONT && first_cpe) || pos == AAC_CHANNEL_SIDE))
+        return -1;
+    *current = i;
+    return num_pos_channels;
+}
+
+static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags)
+{
+    int i, n, total_non_cc_elements;
+    struct elem_to_channel e2c_vec[4 * MAX_ELEM_ID] = { { 0 } };
+    int num_front_channels, num_side_channels, num_back_channels;
+    uint64_t layout;
+
+    if (FF_ARRAY_ELEMS(e2c_vec) < tags)
+        return 0;
+
+    i = 0;
+    num_front_channels =
+        count_paired_channels(layout_map, tags, AAC_CHANNEL_FRONT, &i);
+    if (num_front_channels < 0)
+        return 0;
+    num_side_channels =
+        count_paired_channels(layout_map, tags, AAC_CHANNEL_SIDE, &i);
+    if (num_side_channels < 0)
+        return 0;
+    num_back_channels =
+        count_paired_channels(layout_map, tags, AAC_CHANNEL_BACK, &i);
+    if (num_back_channels < 0)
+        return 0;
+
+    if (num_side_channels == 0 && num_back_channels >= 4) {
+        num_side_channels = 2;
+        num_back_channels -= 2;
+    }
+
+    i = 0;
+    if (num_front_channels & 1) {
+        e2c_vec[i] = (struct elem_to_channel) {
+            .av_position  = AV_CH_FRONT_CENTER,
+            .syn_ele      = TYPE_SCE,
+            .elem_id      = layout_map[i][1],
+            .aac_position = AAC_CHANNEL_FRONT
+        };
+        i++;
+        num_front_channels--;
+    }
+    if (num_front_channels >= 4) {
+        i += assign_pair(e2c_vec, layout_map, i,
+                         AV_CH_FRONT_LEFT_OF_CENTER,
+                         AV_CH_FRONT_RIGHT_OF_CENTER,
+                         AAC_CHANNEL_FRONT);
+        num_front_channels -= 2;
+    }
+    if (num_front_channels >= 2) {
+        i += assign_pair(e2c_vec, layout_map, i,
+                         AV_CH_FRONT_LEFT,
+                         AV_CH_FRONT_RIGHT,
+                         AAC_CHANNEL_FRONT);
+        num_front_channels -= 2;
+    }
+    while (num_front_channels >= 2) {
+        i += assign_pair(e2c_vec, layout_map, i,
+                         UINT64_MAX,
+                         UINT64_MAX,
+                         AAC_CHANNEL_FRONT);
+        num_front_channels -= 2;
+    }
+
+    if (num_side_channels >= 2) {
+        i += assign_pair(e2c_vec, layout_map, i,
+                         AV_CH_SIDE_LEFT,
+                         AV_CH_SIDE_RIGHT,
+                         AAC_CHANNEL_FRONT);
+        num_side_channels -= 2;
+    }
+    while (num_side_channels >= 2) {
+        i += assign_pair(e2c_vec, layout_map, i,
+                         UINT64_MAX,
+                         UINT64_MAX,
+                         AAC_CHANNEL_SIDE);
+        num_side_channels -= 2;
+    }
+
+    while (num_back_channels >= 4) {
+        i += assign_pair(e2c_vec, layout_map, i,
+                         UINT64_MAX,
+                         UINT64_MAX,
+                         AAC_CHANNEL_BACK);
+        num_back_channels -= 2;
+    }
+    if (num_back_channels >= 2) {
+        i += assign_pair(e2c_vec, layout_map, i,
+                         AV_CH_BACK_LEFT,
+                         AV_CH_BACK_RIGHT,
+                         AAC_CHANNEL_BACK);
+        num_back_channels -= 2;
+    }
+    if (num_back_channels) {
+        e2c_vec[i] = (struct elem_to_channel) {
+            .av_position  = AV_CH_BACK_CENTER,
+            .syn_ele      = TYPE_SCE,
+            .elem_id      = layout_map[i][1],
+            .aac_position = AAC_CHANNEL_BACK
+        };
+        i++;
+        num_back_channels--;
+    }
+
+    if (i < tags && layout_map[i][2] == AAC_CHANNEL_LFE) {
+        e2c_vec[i] = (struct elem_to_channel) {
+            .av_position  = AV_CH_LOW_FREQUENCY,
+            .syn_ele      = TYPE_LFE,
+            .elem_id      = layout_map[i][1],
+            .aac_position = AAC_CHANNEL_LFE
+        };
+        i++;
+    }
+    while (i < tags && layout_map[i][2] == AAC_CHANNEL_LFE) {
+        e2c_vec[i] = (struct elem_to_channel) {
+            .av_position  = UINT64_MAX,
+            .syn_ele      = TYPE_LFE,
+            .elem_id      = layout_map[i][1],
+            .aac_position = AAC_CHANNEL_LFE
+        };
+        i++;
+    }
+
+    // Must choose a stable sort
+    total_non_cc_elements = n = i;
+    do {
+        int next_n = 0;
+        for (i = 1; i < n; i++)
+            if (e2c_vec[i - 1].av_position > e2c_vec[i].av_position) {
+                FFSWAP(struct elem_to_channel, e2c_vec[i - 1], e2c_vec[i]);
+                next_n = i;
+            }
+        n = next_n;
+    } while (n > 0);
+
+    layout = 0;
+    for (i = 0; i < total_non_cc_elements; i++) {
+        layout_map[i][0] = e2c_vec[i].syn_ele;
+        layout_map[i][1] = e2c_vec[i].elem_id;
+        layout_map[i][2] = e2c_vec[i].aac_position;
+        if (e2c_vec[i].av_position != UINT64_MAX) {
+            layout |= e2c_vec[i].av_position;
+        }
+    }
+
+    return layout;
+}
+
+/**
+ * Save current output configuration if and only if it has been locked.
+ */
+static int push_output_configuration(AACContext *ac) {
+    int pushed = 0;
+
+    if (ac->oc[1].status == OC_LOCKED || ac->oc[0].status == OC_NONE) {
+        ac->oc[0] = ac->oc[1];
+        pushed = 1;
+    }
+    ac->oc[1].status = OC_NONE;
+    return pushed;
+}
+
+/**
+ * Restore the previous output configuration if and only if the current
+ * configuration is unlocked.
+ */
+static void pop_output_configuration(AACContext *ac) {
+    if (ac->oc[1].status != OC_LOCKED && ac->oc[0].status != OC_NONE) {
+        ac->oc[1] = ac->oc[0];
+        ac->avctx->channels = ac->oc[1].channels;
+        ac->avctx->channel_layout = ac->oc[1].channel_layout;
+        output_configure(ac, ac->oc[1].layout_map, ac->oc[1].layout_map_tags,
+                         ac->oc[1].status, 0);
+    }
+}
+
+/**
+ * Configure output channel order based on the current program
+ * configuration element.
+ *
+ * @return  Returns error status. 0 - OK, !0 - error
+ */
+static int output_configure(AACContext *ac,
+                            uint8_t layout_map[MAX_ELEM_ID * 4][3], int tags,
+                            enum OCStatus oc_type, int get_new_frame)
+{
+    AVCodecContext *avctx = ac->avctx;
+    int i, channels = 0, ret;
+    uint64_t layout = 0;
+    uint8_t id_map[TYPE_END][MAX_ELEM_ID] = {{ 0 }};
+    uint8_t type_counts[TYPE_END] = { 0 };
+
+    if (ac->oc[1].layout_map != layout_map) {
+        memcpy(ac->oc[1].layout_map, layout_map, tags * sizeof(layout_map[0]));
+        ac->oc[1].layout_map_tags = tags;
+    }
+    for (i = 0; i < tags; i++) {
+        int type =         layout_map[i][0];
+        int id =           layout_map[i][1];
+        id_map[type][id] = type_counts[type]++;
+        if (id_map[type][id] >= MAX_ELEM_ID) {
+            avpriv_request_sample(ac->avctx, "Too large remapped id");
+            return AVERROR_PATCHWELCOME;
+        }
+    }
+    // Try to sniff a reasonable channel order, otherwise output the
+    // channels in the order the PCE declared them.
+    if (avctx->request_channel_layout != AV_CH_LAYOUT_NATIVE)
+        layout = sniff_channel_order(layout_map, tags);
+    for (i = 0; i < tags; i++) {
+        int type =     layout_map[i][0];
+        int id =       layout_map[i][1];
+        int iid =      id_map[type][id];
+        int position = layout_map[i][2];
+        // Allocate or free elements depending on if they are in the
+        // current program configuration.
+        ret = che_configure(ac, position, type, iid, &channels);
+        if (ret < 0)
+            return ret;
+        ac->tag_che_map[type][id] = ac->che[type][iid];
+    }
+    if (ac->oc[1].m4ac.ps == 1 && channels == 2) {
+        if (layout == AV_CH_FRONT_CENTER) {
+            layout = AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT;
+        } else {
+            layout = 0;
+        }
+    }
+
+    if (layout) avctx->channel_layout = layout;
+                            ac->oc[1].channel_layout = layout;
+    avctx->channels       = ac->oc[1].channels       = channels;
+    ac->oc[1].status = oc_type;
+
+    if (get_new_frame) {
+        if ((ret = frame_configure_elements(ac->avctx)) < 0)
+            return ret;
+    }
+
+    return 0;
+}
+
+static void flush(AVCodecContext *avctx)
+{
+    AACContext *ac= avctx->priv_data;
+    int type, i, j;
+
+    for (type = 3; type >= 0; type--) {
+        for (i = 0; i < MAX_ELEM_ID; i++) {
+            ChannelElement *che = ac->che[type][i];
+            if (che) {
+                for (j = 0; j <= 1; j++) {
+                    memset(che->ch[j].saved, 0, sizeof(che->ch[j].saved));
+                }
+            }
+        }
+    }
+}
+
+/**
+ * Set up channel positions based on a default channel configuration
+ * as specified in table 1.17.
+ *
+ * @return  Returns error status. 0 - OK, !0 - error
+ */
+static int set_default_channel_config(AVCodecContext *avctx,
+                                      uint8_t (*layout_map)[3],
+                                      int *tags,
+                                      int channel_config)
+{
+    if (channel_config < 1 || (channel_config > 7 && channel_config < 11) ||
+        channel_config > 12) {
+        av_log(avctx, AV_LOG_ERROR,
+               "invalid default channel configuration (%d)\n",
+               channel_config);
+        return AVERROR_INVALIDDATA;
+    }
+    *tags = tags_per_config[channel_config];
+    memcpy(layout_map, aac_channel_layout_map[channel_config - 1],
+           *tags * sizeof(*layout_map));
+
+    /*
+     * AAC specification has 7.1(wide) as a default layout for 8-channel streams.
+     * However, at least Nero AAC encoder encodes 7.1 streams using the default
+     * channel config 7, mapping the side channels of the original audio stream
+     * to the second AAC_CHANNEL_FRONT pair in the AAC stream. Similarly, e.g. FAAD
+     * decodes the second AAC_CHANNEL_FRONT pair as side channels, therefore decoding
+     * the incorrect streams as if they were correct (and as the encoder intended).
+     *
+     * As actual intended 7.1(wide) streams are very rare, default to assuming a
+     * 7.1 layout was intended.
+     */
+    if (channel_config == 7 && avctx->strict_std_compliance < FF_COMPLIANCE_STRICT) {
+        av_log(avctx, AV_LOG_INFO, "Assuming an incorrectly encoded 7.1 channel layout"
+               " instead of a spec-compliant 7.1(wide) layout, use -strict %d to decode"
+               " according to the specification instead.\n", FF_COMPLIANCE_STRICT);
+        layout_map[2][2] = AAC_CHANNEL_SIDE;
+    }
+
+    return 0;
+}
+
+static ChannelElement *get_che(AACContext *ac, int type, int elem_id)
+{
+    /* For PCE based channel configurations map the channels solely based
+     * on tags. */
+    if (!ac->oc[1].m4ac.chan_config) {
+        return ac->tag_che_map[type][elem_id];
+    }
+    // Allow single CPE stereo files to be signalled with mono configuration.
+    if (!ac->tags_mapped && type == TYPE_CPE &&
+        ac->oc[1].m4ac.chan_config == 1) {
+        uint8_t layout_map[MAX_ELEM_ID*4][3];
+        int layout_map_tags;
+        push_output_configuration(ac);
+
+        av_log(ac->avctx, AV_LOG_DEBUG, "mono with CPE\n");
+
+        if (set_default_channel_config(ac->avctx, layout_map,
+                                       &layout_map_tags, 2) < 0)
+            return NULL;
+        if (output_configure(ac, layout_map, layout_map_tags,
+                             OC_TRIAL_FRAME, 1) < 0)
+            return NULL;
+
+        ac->oc[1].m4ac.chan_config = 2;
+        ac->oc[1].m4ac.ps = 0;
+    }
+    // And vice-versa
+    if (!ac->tags_mapped && type == TYPE_SCE &&
+        ac->oc[1].m4ac.chan_config == 2) {
+        uint8_t layout_map[MAX_ELEM_ID * 4][3];
+        int layout_map_tags;
+        push_output_configuration(ac);
+
+        av_log(ac->avctx, AV_LOG_DEBUG, "stereo with SCE\n");
+
+        if (set_default_channel_config(ac->avctx, layout_map,
+                                       &layout_map_tags, 1) < 0)
+            return NULL;
+        if (output_configure(ac, layout_map, layout_map_tags,
+                             OC_TRIAL_FRAME, 1) < 0)
+            return NULL;
+
+        ac->oc[1].m4ac.chan_config = 1;
+        if (ac->oc[1].m4ac.sbr)
+            ac->oc[1].m4ac.ps = -1;
+    }
+    /* For indexed channel configurations map the channels solely based
+     * on position. */
+    switch (ac->oc[1].m4ac.chan_config) {
+    case 12:
+    case 7:
+        if (ac->tags_mapped == 3 && type == TYPE_CPE) {
+            ac->tags_mapped++;
+            return ac->tag_che_map[TYPE_CPE][elem_id] = ac->che[TYPE_CPE][2];
+        }
+    case 11:
+        if (ac->tags_mapped == 2 &&
+            ac->oc[1].m4ac.chan_config == 11 &&
+            type == TYPE_SCE) {
+            ac->tags_mapped++;
+            return ac->tag_che_map[TYPE_SCE][elem_id] = ac->che[TYPE_SCE][1];
+        }
+    case 6:
+        /* Some streams incorrectly code 5.1 audio as
+         * SCE[0] CPE[0] CPE[1] SCE[1]
+         * instead of
+         * SCE[0] CPE[0] CPE[1] LFE[0].
+         * If we seem to have encountered such a stream, transfer
+         * the LFE[0] element to the SCE[1]'s mapping */
+        if (ac->tags_mapped == tags_per_config[ac->oc[1].m4ac.chan_config] - 1 && (type == TYPE_LFE || type == TYPE_SCE)) {
+            if (!ac->warned_remapping_once && (type != TYPE_LFE || elem_id != 0)) {
+                av_log(ac->avctx, AV_LOG_WARNING,
+                   "This stream seems to incorrectly report its last channel as %s[%d], mapping to LFE[0]\n",
+                   type == TYPE_SCE ? "SCE" : "LFE", elem_id);
+                ac->warned_remapping_once++;
+            }
+            ac->tags_mapped++;
+            return ac->tag_che_map[type][elem_id] = ac->che[TYPE_LFE][0];
+        }
+    case 5:
+        if (ac->tags_mapped == 2 && type == TYPE_CPE) {
+            ac->tags_mapped++;
+            return ac->tag_che_map[TYPE_CPE][elem_id] = ac->che[TYPE_CPE][1];
+        }
+    case 4:
+        /* Some streams incorrectly code 4.0 audio as
+         * SCE[0] CPE[0] LFE[0]
+         * instead of
+         * SCE[0] CPE[0] SCE[1].
+         * If we seem to have encountered such a stream, transfer
+         * the SCE[1] element to the LFE[0]'s mapping */
+        if (ac->tags_mapped == tags_per_config[ac->oc[1].m4ac.chan_config] - 1 && (type == TYPE_LFE || type == TYPE_SCE)) {
+            if (!ac->warned_remapping_once && (type != TYPE_SCE || elem_id != 1)) {
+                av_log(ac->avctx, AV_LOG_WARNING,
+                   "This stream seems to incorrectly report its last channel as %s[%d], mapping to SCE[1]\n",
+                   type == TYPE_SCE ? "SCE" : "LFE", elem_id);
+                ac->warned_remapping_once++;
+            }
+            ac->tags_mapped++;
+            return ac->tag_che_map[type][elem_id] = ac->che[TYPE_SCE][1];
+        }
+        if (ac->tags_mapped == 2 &&
+            ac->oc[1].m4ac.chan_config == 4 &&
+            type == TYPE_SCE) {
+            ac->tags_mapped++;
+            return ac->tag_che_map[TYPE_SCE][elem_id] = ac->che[TYPE_SCE][1];
+        }
+    case 3:
+    case 2:
+        if (ac->tags_mapped == (ac->oc[1].m4ac.chan_config != 2) &&
+            type == TYPE_CPE) {
+            ac->tags_mapped++;
+            return ac->tag_che_map[TYPE_CPE][elem_id] = ac->che[TYPE_CPE][0];
+        } else if (ac->oc[1].m4ac.chan_config == 2) {
+            return NULL;
+        }
+    case 1:
+        if (!ac->tags_mapped && type == TYPE_SCE) {
+            ac->tags_mapped++;
+            return ac->tag_che_map[TYPE_SCE][elem_id] = ac->che[TYPE_SCE][0];
+        }
+    default:
+        return NULL;
+    }
+}
+
+/**
+ * Decode an array of 4 bit element IDs, optionally interleaved with a
+ * stereo/mono switching bit.
+ *
+ * @param type speaker type/position for these channels
+ */
+static void decode_channel_map(uint8_t layout_map[][3],
+                               enum ChannelPosition type,
+                               GetBitContext *gb, int n)
+{
+    while (n--) {
+        enum RawDataBlockType syn_ele;
+        switch (type) {
+        case AAC_CHANNEL_FRONT:
+        case AAC_CHANNEL_BACK:
+        case AAC_CHANNEL_SIDE:
+            syn_ele = get_bits1(gb);
+            break;
+        case AAC_CHANNEL_CC:
+            skip_bits1(gb);
+            syn_ele = TYPE_CCE;
+            break;
+        case AAC_CHANNEL_LFE:
+            syn_ele = TYPE_LFE;
+            break;
+        default:
+            // AAC_CHANNEL_OFF has no channel map
+            av_assert0(0);
+        }
+        layout_map[0][0] = syn_ele;
+        layout_map[0][1] = get_bits(gb, 4);
+        layout_map[0][2] = type;
+        layout_map++;
+    }
+}
+
+static inline void relative_align_get_bits(GetBitContext *gb,
+                                           int reference_position) {
+    int n = (reference_position - get_bits_count(gb) & 7);
+    if (n)
+        skip_bits(gb, n);
+}
+
+/**
+ * Decode program configuration element; reference: table 4.2.
+ *
+ * @return  Returns error status. 0 - OK, !0 - error
+ */
+static int decode_pce(AVCodecContext *avctx, MPEG4AudioConfig *m4ac,
+                      uint8_t (*layout_map)[3],
+                      GetBitContext *gb, int byte_align_ref)
+{
+    int num_front, num_side, num_back, num_lfe, num_assoc_data, num_cc;
+    int sampling_index;
+    int comment_len;
+    int tags;
+
+    skip_bits(gb, 2);  // object_type
+
+    sampling_index = get_bits(gb, 4);
+    if (m4ac->sampling_index != sampling_index)
+        av_log(avctx, AV_LOG_WARNING,
+               "Sample rate index in program config element does not "
+               "match the sample rate index configured by the container.\n");
+
+    num_front       = get_bits(gb, 4);
+    num_side        = get_bits(gb, 4);
+    num_back        = get_bits(gb, 4);
+    num_lfe         = get_bits(gb, 2);
+    num_assoc_data  = get_bits(gb, 3);
+    num_cc          = get_bits(gb, 4);
+
+    if (get_bits1(gb))
+        skip_bits(gb, 4); // mono_mixdown_tag
+    if (get_bits1(gb))
+        skip_bits(gb, 4); // stereo_mixdown_tag
+
+    if (get_bits1(gb))
+        skip_bits(gb, 3); // mixdown_coeff_index and pseudo_surround
+
+    if (get_bits_left(gb) < 5 * (num_front + num_side + num_back + num_cc) + 4 *(num_lfe + num_assoc_data + num_cc)) {
+        av_log(avctx, AV_LOG_ERROR, "decode_pce: " overread_err);
+        return -1;
+    }
+    decode_channel_map(layout_map       , AAC_CHANNEL_FRONT, gb, num_front);
+    tags = num_front;
+    decode_channel_map(layout_map + tags, AAC_CHANNEL_SIDE,  gb, num_side);
+    tags += num_side;
+    decode_channel_map(layout_map + tags, AAC_CHANNEL_BACK,  gb, num_back);
+    tags += num_back;
+    decode_channel_map(layout_map + tags, AAC_CHANNEL_LFE,   gb, num_lfe);
+    tags += num_lfe;
+
+    skip_bits_long(gb, 4 * num_assoc_data);
+
+    decode_channel_map(layout_map + tags, AAC_CHANNEL_CC,    gb, num_cc);
+    tags += num_cc;
+
+    relative_align_get_bits(gb, byte_align_ref);
+
+    /* comment field, first byte is length */
+    comment_len = get_bits(gb, 8) * 8;
+    if (get_bits_left(gb) < comment_len) {
+        av_log(avctx, AV_LOG_ERROR, "decode_pce: " overread_err);
+        return AVERROR_INVALIDDATA;
+    }
+    skip_bits_long(gb, comment_len);
+    return tags;
+}
+
+/**
+ * Decode GA "General Audio" specific configuration; reference: table 4.1.
+ *
+ * @param   ac          pointer to AACContext, may be null
+ * @param   avctx       pointer to AVCCodecContext, used for logging
+ *
+ * @return  Returns error status. 0 - OK, !0 - error
+ */
+static int decode_ga_specific_config(AACContext *ac, AVCodecContext *avctx,
+                                     GetBitContext *gb,
+                                     int get_bit_alignment,
+                                     MPEG4AudioConfig *m4ac,
+                                     int channel_config)
+{
+    int extension_flag, ret, ep_config, res_flags;
+    uint8_t layout_map[MAX_ELEM_ID*4][3];
+    int tags = 0;
+
+#if USE_FIXED
+    if (get_bits1(gb)) { // frameLengthFlag
+        avpriv_report_missing_feature(avctx, "Fixed point 960/120 MDCT window");
+        return AVERROR_PATCHWELCOME;
+    }
+    m4ac->frame_length_short = 0;
+#else
+    m4ac->frame_length_short = get_bits1(gb);
+    if (m4ac->frame_length_short && m4ac->sbr == 1) {
+      avpriv_report_missing_feature(avctx, "SBR with 960 frame length");
+      if (ac) ac->warned_960_sbr = 1;
+      m4ac->sbr = 0;
+      m4ac->ps = 0;
+    }
+#endif
+
+    if (get_bits1(gb))       // dependsOnCoreCoder
+        skip_bits(gb, 14);   // coreCoderDelay
+    extension_flag = get_bits1(gb);
+
+    if (m4ac->object_type == AOT_AAC_SCALABLE ||
+        m4ac->object_type == AOT_ER_AAC_SCALABLE)
+        skip_bits(gb, 3);     // layerNr
+
+    if (channel_config == 0) {
+        skip_bits(gb, 4);  // element_instance_tag
+        tags = decode_pce(avctx, m4ac, layout_map, gb, get_bit_alignment);
+        if (tags < 0)
+            return tags;
+    } else {
+        if ((ret = set_default_channel_config(avctx, layout_map,
+                                              &tags, channel_config)))
+            return ret;
+    }
+
+    if (count_channels(layout_map, tags) > 1) {
+        m4ac->ps = 0;
+    } else if (m4ac->sbr == 1 && m4ac->ps == -1)
+        m4ac->ps = 1;
+
+    if (ac && (ret = output_configure(ac, layout_map, tags, OC_GLOBAL_HDR, 0)))
+        return ret;
+
+    if (extension_flag) {
+        switch (m4ac->object_type) {
+        case AOT_ER_BSAC:
+            skip_bits(gb, 5);    // numOfSubFrame
+            skip_bits(gb, 11);   // layer_length
+            break;
+        case AOT_ER_AAC_LC:
+        case AOT_ER_AAC_LTP:
+        case AOT_ER_AAC_SCALABLE:
+        case AOT_ER_AAC_LD:
+            res_flags = get_bits(gb, 3);
+            if (res_flags) {
+                avpriv_report_missing_feature(avctx,
+                                              "AAC data resilience (flags %x)",
+                                              res_flags);
+                return AVERROR_PATCHWELCOME;
+            }
+            break;
+        }
+        skip_bits1(gb);    // extensionFlag3 (TBD in version 3)
+    }
+    switch (m4ac->object_type) {
+    case AOT_ER_AAC_LC:
+    case AOT_ER_AAC_LTP:
+    case AOT_ER_AAC_SCALABLE:
+    case AOT_ER_AAC_LD:
+        ep_config = get_bits(gb, 2);
+        if (ep_config) {
+            avpriv_report_missing_feature(avctx,
+                                          "epConfig %d", ep_config);
+            return AVERROR_PATCHWELCOME;
+        }
+    }
+    return 0;
+}
+
+static int decode_eld_specific_config(AACContext *ac, AVCodecContext *avctx,
+                                     GetBitContext *gb,
+                                     MPEG4AudioConfig *m4ac,
+                                     int channel_config)
+{
+    int ret, ep_config, res_flags;
+    uint8_t layout_map[MAX_ELEM_ID*4][3];
+    int tags = 0;
+    const int ELDEXT_TERM = 0;
+
+    m4ac->ps  = 0;
+    m4ac->sbr = 0;
+#if USE_FIXED
+    if (get_bits1(gb)) { // frameLengthFlag
+        avpriv_request_sample(avctx, "960/120 MDCT window");
+        return AVERROR_PATCHWELCOME;
+    }
+#else
+    m4ac->frame_length_short = get_bits1(gb);
+#endif
+    res_flags = get_bits(gb, 3);
+    if (res_flags) {
+        avpriv_report_missing_feature(avctx,
+                                      "AAC data resilience (flags %x)",
+                                      res_flags);
+        return AVERROR_PATCHWELCOME;
+    }
+
+    if (get_bits1(gb)) { // ldSbrPresentFlag
+        avpriv_report_missing_feature(avctx,
+                                      "Low Delay SBR");
+        return AVERROR_PATCHWELCOME;
+    }
+
+    while (get_bits(gb, 4) != ELDEXT_TERM) {
+        int len = get_bits(gb, 4);
+        if (len == 15)
+            len += get_bits(gb, 8);
+        if (len == 15 + 255)
+            len += get_bits(gb, 16);
+        if (get_bits_left(gb) < len * 8 + 4) {
+            av_log(avctx, AV_LOG_ERROR, overread_err);
+            return AVERROR_INVALIDDATA;
+        }
+        skip_bits_long(gb, 8 * len);
+    }
+
+    if ((ret = set_default_channel_config(avctx, layout_map,
+                                          &tags, channel_config)))
+        return ret;
+
+    if (ac && (ret = output_configure(ac, layout_map, tags, OC_GLOBAL_HDR, 0)))
+        return ret;
+
+    ep_config = get_bits(gb, 2);
+    if (ep_config) {
+        avpriv_report_missing_feature(avctx,
+                                      "epConfig %d", ep_config);
+        return AVERROR_PATCHWELCOME;
+    }
+    return 0;
+}
+
+/**
+ * Decode audio specific configuration; reference: table 1.13.
+ *
+ * @param   ac          pointer to AACContext, may be null
+ * @param   avctx       pointer to AVCCodecContext, used for logging
+ * @param   m4ac        pointer to MPEG4AudioConfig, used for parsing
+ * @param   gb          buffer holding an audio specific config
+ * @param   get_bit_alignment relative alignment for byte align operations
+ * @param   sync_extension look for an appended sync extension
+ *
+ * @return  Returns error status or number of consumed bits. <0 - error
+ */
+static int decode_audio_specific_config_gb(AACContext *ac,
+                                           AVCodecContext *avctx,
+                                           MPEG4AudioConfig *m4ac,
+                                           GetBitContext *gb,
+                                           int get_bit_alignment,
+                                           int sync_extension)
+{
+    int i, ret;
+    GetBitContext gbc = *gb;
+
+    if ((i = ff_mpeg4audio_get_config_gb(m4ac, &gbc, sync_extension)) < 0)
+        return AVERROR_INVALIDDATA;
+
+    if (m4ac->sampling_index > 12) {
+        av_log(avctx, AV_LOG_ERROR,
+               "invalid sampling rate index %d\n",
+               m4ac->sampling_index);
+        return AVERROR_INVALIDDATA;
+    }
+    if (m4ac->object_type == AOT_ER_AAC_LD &&
+        (m4ac->sampling_index < 3 || m4ac->sampling_index > 7)) {
+        av_log(avctx, AV_LOG_ERROR,
+               "invalid low delay sampling rate index %d\n",
+               m4ac->sampling_index);
+        return AVERROR_INVALIDDATA;
+    }
+
+    skip_bits_long(gb, i);
+
+    switch (m4ac->object_type) {
+    case AOT_AAC_MAIN:
+    case AOT_AAC_LC:
+    case AOT_AAC_SSR:
+    case AOT_AAC_LTP:
+    case AOT_ER_AAC_LC:
+    case AOT_ER_AAC_LD:
+        if ((ret = decode_ga_specific_config(ac, avctx, gb, get_bit_alignment,
+                                            m4ac, m4ac->chan_config)) < 0)
+            return ret;
+        break;
+    case AOT_ER_AAC_ELD:
+        if ((ret = decode_eld_specific_config(ac, avctx, gb,
+                                              m4ac, m4ac->chan_config)) < 0)
+            return ret;
+        break;
+    default:
+        avpriv_report_missing_feature(avctx,
+                                      "Audio object type %s%d",
+                                      m4ac->sbr == 1 ? "SBR+" : "",
+                                      m4ac->object_type);
+        return AVERROR(ENOSYS);
+    }
+
+    ff_dlog(avctx,
+            "AOT %d chan config %d sampling index %d (%d) SBR %d PS %d\n",
+            m4ac->object_type, m4ac->chan_config, m4ac->sampling_index,
+            m4ac->sample_rate, m4ac->sbr,
+            m4ac->ps);
+
+    return get_bits_count(gb);
+}
+
+static int decode_audio_specific_config(AACContext *ac,
+                                        AVCodecContext *avctx,
+                                        MPEG4AudioConfig *m4ac,
+                                        const uint8_t *data, int64_t bit_size,
+                                        int sync_extension)
+{
+    int i, ret;
+    GetBitContext gb;
+
+    if (bit_size < 0 || bit_size > INT_MAX) {
+        av_log(avctx, AV_LOG_ERROR, "Audio specific config size is invalid\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    ff_dlog(avctx, "audio specific config size %d\n", (int)bit_size >> 3);
+    for (i = 0; i < bit_size >> 3; i++)
+        ff_dlog(avctx, "%02x ", data[i]);
+    ff_dlog(avctx, "\n");
+
+    if ((ret = init_get_bits(&gb, data, bit_size)) < 0)
+        return ret;
+
+    return decode_audio_specific_config_gb(ac, avctx, m4ac, &gb, 0,
+                                           sync_extension);
+}
+
+/**
+ * linear congruential pseudorandom number generator
+ *
+ * @param   previous_val    pointer to the current state of the generator
+ *
+ * @return  Returns a 32-bit pseudorandom integer
+ */
+static av_always_inline int lcg_random(unsigned previous_val)
+{
+    union { unsigned u; int s; } v = { previous_val * 1664525u + 1013904223 };
+    return v.s;
+}
+
+static void reset_all_predictors(PredictorState *ps)
+{
+    int i;
+    for (i = 0; i < MAX_PREDICTORS; i++)
+        reset_predict_state(&ps[i]);
+}
+
+static int sample_rate_idx (int rate)
+{
+         if (92017 <= rate) return 0;
+    else if (75132 <= rate) return 1;
+    else if (55426 <= rate) return 2;
+    else if (46009 <= rate) return 3;
+    else if (37566 <= rate) return 4;
+    else if (27713 <= rate) return 5;
+    else if (23004 <= rate) return 6;
+    else if (18783 <= rate) return 7;
+    else if (13856 <= rate) return 8;
+    else if (11502 <= rate) return 9;
+    else if (9391  <= rate) return 10;
+    else                    return 11;
+}
+
+static void reset_predictor_group(PredictorState *ps, int group_num)
+{
+    int i;
+    for (i = group_num - 1; i < MAX_PREDICTORS; i += 30)
+        reset_predict_state(&ps[i]);
+}
+
+#define AAC_INIT_VLC_STATIC(num, size)                                     \
+    INIT_VLC_STATIC(&vlc_spectral[num], 8, ff_aac_spectral_sizes[num],     \
+         ff_aac_spectral_bits[num], sizeof(ff_aac_spectral_bits[num][0]),  \
+                                    sizeof(ff_aac_spectral_bits[num][0]),  \
+        ff_aac_spectral_codes[num], sizeof(ff_aac_spectral_codes[num][0]), \
+                                    sizeof(ff_aac_spectral_codes[num][0]), \
+        size);
+
+static void aacdec_init(AACContext *ac);
+
+static av_cold void aac_static_table_init(void)
+{
+    AAC_INIT_VLC_STATIC( 0, 304);
+    AAC_INIT_VLC_STATIC( 1, 270);
+    AAC_INIT_VLC_STATIC( 2, 550);
+    AAC_INIT_VLC_STATIC( 3, 300);
+    AAC_INIT_VLC_STATIC( 4, 328);
+    AAC_INIT_VLC_STATIC( 5, 294);
+    AAC_INIT_VLC_STATIC( 6, 306);
+    AAC_INIT_VLC_STATIC( 7, 268);
+    AAC_INIT_VLC_STATIC( 8, 510);
+    AAC_INIT_VLC_STATIC( 9, 366);
+    AAC_INIT_VLC_STATIC(10, 462);
+
+    AAC_RENAME(ff_aac_sbr_init)();
+
+    ff_aac_tableinit();
+
+    INIT_VLC_STATIC(&vlc_scalefactors, 7,
+                    FF_ARRAY_ELEMS(ff_aac_scalefactor_code),
+                    ff_aac_scalefactor_bits,
+                    sizeof(ff_aac_scalefactor_bits[0]),
+                    sizeof(ff_aac_scalefactor_bits[0]),
+                    ff_aac_scalefactor_code,
+                    sizeof(ff_aac_scalefactor_code[0]),
+                    sizeof(ff_aac_scalefactor_code[0]),
+                    352);
+
+    // window initialization
+    AAC_RENAME(ff_kbd_window_init)(AAC_RENAME(ff_aac_kbd_long_1024), 4.0, 1024);
+    AAC_RENAME(ff_kbd_window_init)(AAC_RENAME(ff_aac_kbd_short_128), 6.0, 128);
+#if !USE_FIXED
+    AAC_RENAME(ff_kbd_window_init)(AAC_RENAME(ff_aac_kbd_long_960), 4.0, 960);
+    AAC_RENAME(ff_kbd_window_init)(AAC_RENAME(ff_aac_kbd_short_120), 6.0, 120);
+    AAC_RENAME(ff_sine_window_init)(AAC_RENAME(ff_sine_960), 960);
+    AAC_RENAME(ff_sine_window_init)(AAC_RENAME(ff_sine_120), 120);
+#endif
+    AAC_RENAME(ff_init_ff_sine_windows)(10);
+    AAC_RENAME(ff_init_ff_sine_windows)( 9);
+    AAC_RENAME(ff_init_ff_sine_windows)( 7);
+
+    AAC_RENAME(ff_cbrt_tableinit)();
+}
+
+static AVOnce aac_table_init = AV_ONCE_INIT;
+
+static av_cold int aac_decode_init(AVCodecContext *avctx)
+{
+    AACContext *ac = avctx->priv_data;
+    int ret;
+
+    ret = ff_thread_once(&aac_table_init, &aac_static_table_init);
+    if (ret != 0)
+        return AVERROR_UNKNOWN;
+
+    ac->avctx = avctx;
+    ac->oc[1].m4ac.sample_rate = avctx->sample_rate;
+
+    aacdec_init(ac);
+#if USE_FIXED
+    avctx->sample_fmt = AV_SAMPLE_FMT_S32P;
+#else
+    avctx->sample_fmt = AV_SAMPLE_FMT_FLTP;
+#endif /* USE_FIXED */
+
+    if (avctx->extradata_size > 0) {
+        if ((ret = decode_audio_specific_config(ac, ac->avctx, &ac->oc[1].m4ac,
+                                                avctx->extradata,
+                                                avctx->extradata_size * 8LL,
+                                                1)) < 0)
+            return ret;
+    } else {
+        int sr, i;
+        uint8_t layout_map[MAX_ELEM_ID*4][3];
+        int layout_map_tags;
+
+        sr = sample_rate_idx(avctx->sample_rate);
+        ac->oc[1].m4ac.sampling_index = sr;
+        ac->oc[1].m4ac.channels = avctx->channels;
+        ac->oc[1].m4ac.sbr = -1;
+        ac->oc[1].m4ac.ps = -1;
+
+        for (i = 0; i < FF_ARRAY_ELEMS(ff_mpeg4audio_channels); i++)
+            if (ff_mpeg4audio_channels[i] == avctx->channels)
+                break;
+        if (i == FF_ARRAY_ELEMS(ff_mpeg4audio_channels)) {
+            i = 0;
+        }
+        ac->oc[1].m4ac.chan_config = i;
+
+        if (ac->oc[1].m4ac.chan_config) {
+            int ret = set_default_channel_config(avctx, layout_map,
+                &layout_map_tags, ac->oc[1].m4ac.chan_config);
+            if (!ret)
+                output_configure(ac, layout_map, layout_map_tags,
+                                 OC_GLOBAL_HDR, 0);
+            else if (avctx->err_recognition & AV_EF_EXPLODE)
+                return AVERROR_INVALIDDATA;
+        }
+    }
+
+    if (avctx->channels > MAX_CHANNELS) {
+        av_log(avctx, AV_LOG_ERROR, "Too many channels\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+#if USE_FIXED
+    ac->fdsp = avpriv_alloc_fixed_dsp(avctx->flags & AV_CODEC_FLAG_BITEXACT);
+#else
+    ac->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
+#endif /* USE_FIXED */
+    if (!ac->fdsp) {
+        return AVERROR(ENOMEM);
+    }
+
+    ac->random_state = 0x1f2e3d4c;
+
+    AAC_RENAME_32(ff_mdct_init)(&ac->mdct,       11, 1, 1.0 / RANGE15(1024.0));
+    AAC_RENAME_32(ff_mdct_init)(&ac->mdct_ld,    10, 1, 1.0 / RANGE15(512.0));
+    AAC_RENAME_32(ff_mdct_init)(&ac->mdct_small,  8, 1, 1.0 / RANGE15(128.0));
+    AAC_RENAME_32(ff_mdct_init)(&ac->mdct_ltp,   11, 0, RANGE15(-2.0));
+#if !USE_FIXED
+    ret = ff_mdct15_init(&ac->mdct120, 1, 3, 1.0f/(16*1024*120*2));
+    if (ret < 0)
+        return ret;
+    ret = ff_mdct15_init(&ac->mdct480, 1, 5, 1.0f/(16*1024*960));
+    if (ret < 0)
+        return ret;
+    ret = ff_mdct15_init(&ac->mdct960, 1, 6, 1.0f/(16*1024*960*2));
+    if (ret < 0)
+        return ret;
+#endif
+
+    return 0;
+}
+
+/**
+ * Skip data_stream_element; reference: table 4.10.
+ */
+static int skip_data_stream_element(AACContext *ac, GetBitContext *gb)
+{
+    int byte_align = get_bits1(gb);
+    int count = get_bits(gb, 8);
+    if (count == 255)
+        count += get_bits(gb, 8);
+    if (byte_align)
+        align_get_bits(gb);
+
+    if (get_bits_left(gb) < 8 * count) {
+        av_log(ac->avctx, AV_LOG_ERROR, "skip_data_stream_element: "overread_err);
+        return AVERROR_INVALIDDATA;
+    }
+    skip_bits_long(gb, 8 * count);
+    return 0;
+}
+
+static int decode_prediction(AACContext *ac, IndividualChannelStream *ics,
+                             GetBitContext *gb)
+{
+    int sfb;
+    if (get_bits1(gb)) {
+        ics->predictor_reset_group = get_bits(gb, 5);
+        if (ics->predictor_reset_group == 0 ||
+            ics->predictor_reset_group > 30) {
+            av_log(ac->avctx, AV_LOG_ERROR,
+                   "Invalid Predictor Reset Group.\n");
+            return AVERROR_INVALIDDATA;
+        }
+    }
+    for (sfb = 0; sfb < FFMIN(ics->max_sfb, ff_aac_pred_sfb_max[ac->oc[1].m4ac.sampling_index]); sfb++) {
+        ics->prediction_used[sfb] = get_bits1(gb);
+    }
+    return 0;
+}
+
+/**
+ * Decode Long Term Prediction data; reference: table 4.xx.
+ */
+static void decode_ltp(LongTermPrediction *ltp,
+                       GetBitContext *gb, uint8_t max_sfb)
+{
+    int sfb;
+
+    ltp->lag  = get_bits(gb, 11);
+    ltp->coef = ltp_coef[get_bits(gb, 3)];
+    for (sfb = 0; sfb < FFMIN(max_sfb, MAX_LTP_LONG_SFB); sfb++)
+        ltp->used[sfb] = get_bits1(gb);
+}
+
+/**
+ * Decode Individual Channel Stream info; reference: table 4.6.
+ */
+static int decode_ics_info(AACContext *ac, IndividualChannelStream *ics,
+                           GetBitContext *gb)
+{
+    const MPEG4AudioConfig *const m4ac = &ac->oc[1].m4ac;
+    const int aot = m4ac->object_type;
+    const int sampling_index = m4ac->sampling_index;
+    int ret_fail = AVERROR_INVALIDDATA;
+
+    if (aot != AOT_ER_AAC_ELD) {
+        if (get_bits1(gb)) {
+            av_log(ac->avctx, AV_LOG_ERROR, "Reserved bit set.\n");
+            if (ac->avctx->err_recognition & AV_EF_BITSTREAM)
+                return AVERROR_INVALIDDATA;
+        }
+        ics->window_sequence[1] = ics->window_sequence[0];
+        ics->window_sequence[0] = get_bits(gb, 2);
+        if (aot == AOT_ER_AAC_LD &&
+            ics->window_sequence[0] != ONLY_LONG_SEQUENCE) {
+            av_log(ac->avctx, AV_LOG_ERROR,
+                   "AAC LD is only defined for ONLY_LONG_SEQUENCE but "
+                   "window sequence %d found.\n", ics->window_sequence[0]);
+            ics->window_sequence[0] = ONLY_LONG_SEQUENCE;
+            return AVERROR_INVALIDDATA;
+        }
+        ics->use_kb_window[1]   = ics->use_kb_window[0];
+        ics->use_kb_window[0]   = get_bits1(gb);
+    }
+    ics->num_window_groups  = 1;
+    ics->group_len[0]       = 1;
+    if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+        int i;
+        ics->max_sfb = get_bits(gb, 4);
+        for (i = 0; i < 7; i++) {
+            if (get_bits1(gb)) {
+                ics->group_len[ics->num_window_groups - 1]++;
+            } else {
+                ics->num_window_groups++;
+                ics->group_len[ics->num_window_groups - 1] = 1;
+            }
+        }
+        ics->num_windows       = 8;
+        if (m4ac->frame_length_short) {
+            ics->swb_offset    =  ff_swb_offset_120[sampling_index];
+            ics->num_swb       = ff_aac_num_swb_120[sampling_index];
+        } else {
+            ics->swb_offset    =  ff_swb_offset_128[sampling_index];
+            ics->num_swb       = ff_aac_num_swb_128[sampling_index];
+        }
+        ics->tns_max_bands     = ff_tns_max_bands_128[sampling_index];
+        ics->predictor_present = 0;
+    } else {
+        ics->max_sfb           = get_bits(gb, 6);
+        ics->num_windows       = 1;
+        if (aot == AOT_ER_AAC_LD || aot == AOT_ER_AAC_ELD) {
+            if (m4ac->frame_length_short) {
+                ics->swb_offset    =     ff_swb_offset_480[sampling_index];
+                ics->num_swb       =    ff_aac_num_swb_480[sampling_index];
+                ics->tns_max_bands =  ff_tns_max_bands_480[sampling_index];
+            } else {
+                ics->swb_offset    =     ff_swb_offset_512[sampling_index];
+                ics->num_swb       =    ff_aac_num_swb_512[sampling_index];
+                ics->tns_max_bands =  ff_tns_max_bands_512[sampling_index];
+            }
+            if (!ics->num_swb || !ics->swb_offset) {
+                ret_fail = AVERROR_BUG;
+                goto fail;
+            }
+        } else {
+            if (m4ac->frame_length_short) {
+                ics->num_swb    = ff_aac_num_swb_960[sampling_index];
+                ics->swb_offset = ff_swb_offset_960[sampling_index];
+            } else {
+                ics->num_swb    = ff_aac_num_swb_1024[sampling_index];
+                ics->swb_offset = ff_swb_offset_1024[sampling_index];
+            }
+            ics->tns_max_bands = ff_tns_max_bands_1024[sampling_index];
+        }
+        if (aot != AOT_ER_AAC_ELD) {
+            ics->predictor_present     = get_bits1(gb);
+            ics->predictor_reset_group = 0;
+        }
+        if (ics->predictor_present) {
+            if (aot == AOT_AAC_MAIN) {
+                if (decode_prediction(ac, ics, gb)) {
+                    goto fail;
+                }
+            } else if (aot == AOT_AAC_LC ||
+                       aot == AOT_ER_AAC_LC) {
+                av_log(ac->avctx, AV_LOG_ERROR,
+                       "Prediction is not allowed in AAC-LC.\n");
+                goto fail;
+            } else {
+                if (aot == AOT_ER_AAC_LD) {
+                    av_log(ac->avctx, AV_LOG_ERROR,
+                           "LTP in ER AAC LD not yet implemented.\n");
+                    ret_fail = AVERROR_PATCHWELCOME;
+                    goto fail;
+                }
+                if ((ics->ltp.present = get_bits(gb, 1)))
+                    decode_ltp(&ics->ltp, gb, ics->max_sfb);
+            }
+        }
+    }
+
+    if (ics->max_sfb > ics->num_swb) {
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "Number of scalefactor bands in group (%d) "
+               "exceeds limit (%d).\n",
+               ics->max_sfb, ics->num_swb);
+        goto fail;
+    }
+
+    return 0;
+fail:
+    ics->max_sfb = 0;
+    return ret_fail;
+}
+
+/**
+ * Decode band types (section_data payload); reference: table 4.46.
+ *
+ * @param   band_type           array of the used band type
+ * @param   band_type_run_end   array of the last scalefactor band of a band type run
+ *
+ * @return  Returns error status. 0 - OK, !0 - error
+ */
+static int decode_band_types(AACContext *ac, enum BandType band_type[120],
+                             int band_type_run_end[120], GetBitContext *gb,
+                             IndividualChannelStream *ics)
+{
+    int g, idx = 0;
+    const int bits = (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) ? 3 : 5;
+    for (g = 0; g < ics->num_window_groups; g++) {
+        int k = 0;
+        while (k < ics->max_sfb) {
+            uint8_t sect_end = k;
+            int sect_len_incr;
+            int sect_band_type = get_bits(gb, 4);
+            if (sect_band_type == 12) {
+                av_log(ac->avctx, AV_LOG_ERROR, "invalid band type\n");
+                return AVERROR_INVALIDDATA;
+            }
+            do {
+                sect_len_incr = get_bits(gb, bits);
+                sect_end += sect_len_incr;
+                if (get_bits_left(gb) < 0) {
+                    av_log(ac->avctx, AV_LOG_ERROR, "decode_band_types: "overread_err);
+                    return AVERROR_INVALIDDATA;
+                }
+                if (sect_end > ics->max_sfb) {
+                    av_log(ac->avctx, AV_LOG_ERROR,
+                           "Number of bands (%d) exceeds limit (%d).\n",
+                           sect_end, ics->max_sfb);
+                    return AVERROR_INVALIDDATA;
+                }
+            } while (sect_len_incr == (1 << bits) - 1);
+            for (; k < sect_end; k++) {
+                band_type        [idx]   = sect_band_type;
+                band_type_run_end[idx++] = sect_end;
+            }
+        }
+    }
+    return 0;
+}
+
+/**
+ * Decode scalefactors; reference: table 4.47.
+ *
+ * @param   global_gain         first scalefactor value as scalefactors are differentially coded
+ * @param   band_type           array of the used band type
+ * @param   band_type_run_end   array of the last scalefactor band of a band type run
+ * @param   sf                  array of scalefactors or intensity stereo positions
+ *
+ * @return  Returns error status. 0 - OK, !0 - error
+ */
+static int decode_scalefactors(AACContext *ac, INTFLOAT sf[120], GetBitContext *gb,
+                               unsigned int global_gain,
+                               IndividualChannelStream *ics,
+                               enum BandType band_type[120],
+                               int band_type_run_end[120])
+{
+    int g, i, idx = 0;
+    int offset[3] = { global_gain, global_gain - NOISE_OFFSET, 0 };
+    int clipped_offset;
+    int noise_flag = 1;
+    for (g = 0; g < ics->num_window_groups; g++) {
+        for (i = 0; i < ics->max_sfb;) {
+            int run_end = band_type_run_end[idx];
+            if (band_type[idx] == ZERO_BT) {
+                for (; i < run_end; i++, idx++)
+                    sf[idx] = FIXR(0.);
+            } else if ((band_type[idx] == INTENSITY_BT) ||
+                       (band_type[idx] == INTENSITY_BT2)) {
+                for (; i < run_end; i++, idx++) {
+                    offset[2] += get_vlc2(gb, vlc_scalefactors.table, 7, 3) - SCALE_DIFF_ZERO;
+                    clipped_offset = av_clip(offset[2], -155, 100);
+                    if (offset[2] != clipped_offset) {
+                        avpriv_request_sample(ac->avctx,
+                                              "If you heard an audible artifact, there may be a bug in the decoder. "
+                                              "Clipped intensity stereo position (%d -> %d)",
+                                              offset[2], clipped_offset);
+                    }
+#if USE_FIXED
+                    sf[idx] = 100 - clipped_offset;
+#else
+                    sf[idx] = ff_aac_pow2sf_tab[-clipped_offset + POW_SF2_ZERO];
+#endif /* USE_FIXED */
+                }
+            } else if (band_type[idx] == NOISE_BT) {
+                for (; i < run_end; i++, idx++) {
+                    if (noise_flag-- > 0)
+                        offset[1] += get_bits(gb, NOISE_PRE_BITS) - NOISE_PRE;
+                    else
+                        offset[1] += get_vlc2(gb, vlc_scalefactors.table, 7, 3) - SCALE_DIFF_ZERO;
+                    clipped_offset = av_clip(offset[1], -100, 155);
+                    if (offset[1] != clipped_offset) {
+                        avpriv_request_sample(ac->avctx,
+                                              "If you heard an audible artifact, there may be a bug in the decoder. "
+                                              "Clipped noise gain (%d -> %d)",
+                                              offset[1], clipped_offset);
+                    }
+#if USE_FIXED
+                    sf[idx] = -(100 + clipped_offset);
+#else
+                    sf[idx] = -ff_aac_pow2sf_tab[clipped_offset + POW_SF2_ZERO];
+#endif /* USE_FIXED */
+                }
+            } else {
+                for (; i < run_end; i++, idx++) {
+                    offset[0] += get_vlc2(gb, vlc_scalefactors.table, 7, 3) - SCALE_DIFF_ZERO;
+                    if (offset[0] > 255U) {
+                        av_log(ac->avctx, AV_LOG_ERROR,
+                               "Scalefactor (%d) out of range.\n", offset[0]);
+                        return AVERROR_INVALIDDATA;
+                    }
+#if USE_FIXED
+                    sf[idx] = -offset[0];
+#else
+                    sf[idx] = -ff_aac_pow2sf_tab[offset[0] - 100 + POW_SF2_ZERO];
+#endif /* USE_FIXED */
+                }
+            }
+        }
+    }
+    return 0;
+}
+
+/**
+ * Decode pulse data; reference: table 4.7.
+ */
+static int decode_pulses(Pulse *pulse, GetBitContext *gb,
+                         const uint16_t *swb_offset, int num_swb)
+{
+    int i, pulse_swb;
+    pulse->num_pulse = get_bits(gb, 2) + 1;
+    pulse_swb        = get_bits(gb, 6);
+    if (pulse_swb >= num_swb)
+        return -1;
+    pulse->pos[0]    = swb_offset[pulse_swb];
+    pulse->pos[0]   += get_bits(gb, 5);
+    if (pulse->pos[0] >= swb_offset[num_swb])
+        return -1;
+    pulse->amp[0]    = get_bits(gb, 4);
+    for (i = 1; i < pulse->num_pulse; i++) {
+        pulse->pos[i] = get_bits(gb, 5) + pulse->pos[i - 1];
+        if (pulse->pos[i] >= swb_offset[num_swb])
+            return -1;
+        pulse->amp[i] = get_bits(gb, 4);
+    }
+    return 0;
+}
+
+/**
+ * Decode Temporal Noise Shaping data; reference: table 4.48.
+ *
+ * @return  Returns error status. 0 - OK, !0 - error
+ */
+static int decode_tns(AACContext *ac, TemporalNoiseShaping *tns,
+                      GetBitContext *gb, const IndividualChannelStream *ics)
+{
+    int w, filt, i, coef_len, coef_res, coef_compress;
+    const int is8 = ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE;
+    const int tns_max_order = is8 ? 7 : ac->oc[1].m4ac.object_type == AOT_AAC_MAIN ? 20 : 12;
+    for (w = 0; w < ics->num_windows; w++) {
+        if ((tns->n_filt[w] = get_bits(gb, 2 - is8))) {
+            coef_res = get_bits1(gb);
+
+            for (filt = 0; filt < tns->n_filt[w]; filt++) {
+                int tmp2_idx;
+                tns->length[w][filt] = get_bits(gb, 6 - 2 * is8);
+
+                if ((tns->order[w][filt] = get_bits(gb, 5 - 2 * is8)) > tns_max_order) {
+                    av_log(ac->avctx, AV_LOG_ERROR,
+                           "TNS filter order %d is greater than maximum %d.\n",
+                           tns->order[w][filt], tns_max_order);
+                    tns->order[w][filt] = 0;
+                    return AVERROR_INVALIDDATA;
+                }
+                if (tns->order[w][filt]) {
+                    tns->direction[w][filt] = get_bits1(gb);
+                    coef_compress = get_bits1(gb);
+                    coef_len = coef_res + 3 - coef_compress;
+                    tmp2_idx = 2 * coef_compress + coef_res;
+
+                    for (i = 0; i < tns->order[w][filt]; i++)
+                        tns->coef[w][filt][i] = tns_tmp2_map[tmp2_idx][get_bits(gb, coef_len)];
+                }
+            }
+        }
+    }
+    return 0;
+}
+
+/**
+ * Decode Mid/Side data; reference: table 4.54.
+ *
+ * @param   ms_present  Indicates mid/side stereo presence. [0] mask is all 0s;
+ *                      [1] mask is decoded from bitstream; [2] mask is all 1s;
+ *                      [3] reserved for scalable AAC
+ */
+static void decode_mid_side_stereo(ChannelElement *cpe, GetBitContext *gb,
+                                   int ms_present)
+{
+    int idx;
+    int max_idx = cpe->ch[0].ics.num_window_groups * cpe->ch[0].ics.max_sfb;
+    if (ms_present == 1) {
+        for (idx = 0; idx < max_idx; idx++)
+            cpe->ms_mask[idx] = get_bits1(gb);
+    } else if (ms_present == 2) {
+        memset(cpe->ms_mask, 1, max_idx * sizeof(cpe->ms_mask[0]));
+    }
+}
+
+/**
+ * Decode spectral data; reference: table 4.50.
+ * Dequantize and scale spectral data; reference: 4.6.3.3.
+ *
+ * @param   coef            array of dequantized, scaled spectral data
+ * @param   sf              array of scalefactors or intensity stereo positions
+ * @param   pulse_present   set if pulses are present
+ * @param   pulse           pointer to pulse data struct
+ * @param   band_type       array of the used band type
+ *
+ * @return  Returns error status. 0 - OK, !0 - error
+ */
+static int decode_spectrum_and_dequant(AACContext *ac, INTFLOAT coef[1024],
+                                       GetBitContext *gb, const INTFLOAT sf[120],
+                                       int pulse_present, const Pulse *pulse,
+                                       const IndividualChannelStream *ics,
+                                       enum BandType band_type[120])
+{
+    int i, k, g, idx = 0;
+    const int c = 1024 / ics->num_windows;
+    const uint16_t *offsets = ics->swb_offset;
+    INTFLOAT *coef_base = coef;
+
+    for (g = 0; g < ics->num_windows; g++)
+        memset(coef + g * 128 + offsets[ics->max_sfb], 0,
+               sizeof(INTFLOAT) * (c - offsets[ics->max_sfb]));
+
+    for (g = 0; g < ics->num_window_groups; g++) {
+        unsigned g_len = ics->group_len[g];
+
+        for (i = 0; i < ics->max_sfb; i++, idx++) {
+            const unsigned cbt_m1 = band_type[idx] - 1;
+            INTFLOAT *cfo = coef + offsets[i];
+            int off_len = offsets[i + 1] - offsets[i];
+            int group;
+
+            if (cbt_m1 >= INTENSITY_BT2 - 1) {
+                for (group = 0; group < (AAC_SIGNE)g_len; group++, cfo+=128) {
+                    memset(cfo, 0, off_len * sizeof(*cfo));
+                }
+            } else if (cbt_m1 == NOISE_BT - 1) {
+                for (group = 0; group < (AAC_SIGNE)g_len; group++, cfo+=128) {
+                    INTFLOAT band_energy;
+#if USE_FIXED
+                    for (k = 0; k < off_len; k++) {
+                        ac->random_state  = lcg_random(ac->random_state);
+                        cfo[k] = ac->random_state >> 3;
+                    }
+
+                    band_energy = ac->fdsp->scalarproduct_fixed(cfo, cfo, off_len);
+                    band_energy = fixed_sqrt(band_energy, 31);
+                    noise_scale(cfo, sf[idx], band_energy, off_len);
+#else
+                    float scale;
+
+                    for (k = 0; k < off_len; k++) {
+                        ac->random_state  = lcg_random(ac->random_state);
+                        cfo[k] = ac->random_state;
+                    }
+
+                    band_energy = ac->fdsp->scalarproduct_float(cfo, cfo, off_len);
+                    scale = sf[idx] / sqrtf(band_energy);
+                    ac->fdsp->vector_fmul_scalar(cfo, cfo, scale, off_len);
+#endif /* USE_FIXED */
+                }
+            } else {
+#if !USE_FIXED
+                const float *vq = ff_aac_codebook_vector_vals[cbt_m1];
+#endif /* !USE_FIXED */
+                const uint16_t *cb_vector_idx = ff_aac_codebook_vector_idx[cbt_m1];
+                VLC_TYPE (*vlc_tab)[2] = vlc_spectral[cbt_m1].table;
+                OPEN_READER(re, gb);
+
+                switch (cbt_m1 >> 1) {
+                case 0:
+                    for (group = 0; group < (AAC_SIGNE)g_len; group++, cfo+=128) {
+                        INTFLOAT *cf = cfo;
+                        int len = off_len;
+
+                        do {
+                            int code;
+                            unsigned cb_idx;
+
+                            UPDATE_CACHE(re, gb);
+                            GET_VLC(code, re, gb, vlc_tab, 8, 2);
+                            cb_idx = cb_vector_idx[code];
+#if USE_FIXED
+                            cf = DEC_SQUAD(cf, cb_idx);
+#else
+                            cf = VMUL4(cf, vq, cb_idx, sf + idx);
+#endif /* USE_FIXED */
+                        } while (len -= 4);
+                    }
+                    break;
+
+                case 1:
+                    for (group = 0; group < (AAC_SIGNE)g_len; group++, cfo+=128) {
+                        INTFLOAT *cf = cfo;
+                        int len = off_len;
+
+                        do {
+                            int code;
+                            unsigned nnz;
+                            unsigned cb_idx;
+                            uint32_t bits;
+
+                            UPDATE_CACHE(re, gb);
+                            GET_VLC(code, re, gb, vlc_tab, 8, 2);
+                            cb_idx = cb_vector_idx[code];
+                            nnz = cb_idx >> 8 & 15;
+                            bits = nnz ? GET_CACHE(re, gb) : 0;
+                            LAST_SKIP_BITS(re, gb, nnz);
+#if USE_FIXED
+                            cf = DEC_UQUAD(cf, cb_idx, bits);
+#else
+                            cf = VMUL4S(cf, vq, cb_idx, bits, sf + idx);
+#endif /* USE_FIXED */
+                        } while (len -= 4);
+                    }
+                    break;
+
+                case 2:
+                    for (group = 0; group < (AAC_SIGNE)g_len; group++, cfo+=128) {
+                        INTFLOAT *cf = cfo;
+                        int len = off_len;
+
+                        do {
+                            int code;
+                            unsigned cb_idx;
+
+                            UPDATE_CACHE(re, gb);
+                            GET_VLC(code, re, gb, vlc_tab, 8, 2);
+                            cb_idx = cb_vector_idx[code];
+#if USE_FIXED
+                            cf = DEC_SPAIR(cf, cb_idx);
+#else
+                            cf = VMUL2(cf, vq, cb_idx, sf + idx);
+#endif /* USE_FIXED */
+                        } while (len -= 2);
+                    }
+                    break;
+
+                case 3:
+                case 4:
+                    for (group = 0; group < (AAC_SIGNE)g_len; group++, cfo+=128) {
+                        INTFLOAT *cf = cfo;
+                        int len = off_len;
+
+                        do {
+                            int code;
+                            unsigned nnz;
+                            unsigned cb_idx;
+                            unsigned sign;
+
+                            UPDATE_CACHE(re, gb);
+                            GET_VLC(code, re, gb, vlc_tab, 8, 2);
+                            cb_idx = cb_vector_idx[code];
+                            nnz = cb_idx >> 8 & 15;
+                            sign = nnz ? SHOW_UBITS(re, gb, nnz) << (cb_idx >> 12) : 0;
+                            LAST_SKIP_BITS(re, gb, nnz);
+#if USE_FIXED
+                            cf = DEC_UPAIR(cf, cb_idx, sign);
+#else
+                            cf = VMUL2S(cf, vq, cb_idx, sign, sf + idx);
+#endif /* USE_FIXED */
+                        } while (len -= 2);
+                    }
+                    break;
+
+                default:
+                    for (group = 0; group < (AAC_SIGNE)g_len; group++, cfo+=128) {
+#if USE_FIXED
+                        int *icf = cfo;
+                        int v;
+#else
+                        float *cf = cfo;
+                        uint32_t *icf = (uint32_t *) cf;
+#endif /* USE_FIXED */
+                        int len = off_len;
+
+                        do {
+                            int code;
+                            unsigned nzt, nnz;
+                            unsigned cb_idx;
+                            uint32_t bits;
+                            int j;
+
+                            UPDATE_CACHE(re, gb);
+                            GET_VLC(code, re, gb, vlc_tab, 8, 2);
+
+                            if (!code) {
+                                *icf++ = 0;
+                                *icf++ = 0;
+                                continue;
+                            }
+
+                            cb_idx = cb_vector_idx[code];
+                            nnz = cb_idx >> 12;
+                            nzt = cb_idx >> 8;
+                            bits = SHOW_UBITS(re, gb, nnz) << (32-nnz);
+                            LAST_SKIP_BITS(re, gb, nnz);
+
+                            for (j = 0; j < 2; j++) {
+                                if (nzt & 1<<j) {
+                                    uint32_t b;
+                                    int n;
+                                    /* The total length of escape_sequence must be < 22 bits according
+                                       to the specification (i.e. max is 111111110xxxxxxxxxxxx). */
+                                    UPDATE_CACHE(re, gb);
+                                    b = GET_CACHE(re, gb);
+                                    b = 31 - av_log2(~b);
+
+                                    if (b > 8) {
+                                        av_log(ac->avctx, AV_LOG_ERROR, "error in spectral data, ESC overflow\n");
+                                        return AVERROR_INVALIDDATA;
+                                    }
+
+                                    SKIP_BITS(re, gb, b + 1);
+                                    b += 4;
+                                    n = (1 << b) + SHOW_UBITS(re, gb, b);
+                                    LAST_SKIP_BITS(re, gb, b);
+#if USE_FIXED
+                                    v = n;
+                                    if (bits & 1U<<31)
+                                        v = -v;
+                                    *icf++ = v;
+#else
+                                    *icf++ = ff_cbrt_tab[n] | (bits & 1U<<31);
+#endif /* USE_FIXED */
+                                    bits <<= 1;
+                                } else {
+#if USE_FIXED
+                                    v = cb_idx & 15;
+                                    if (bits & 1U<<31)
+                                        v = -v;
+                                    *icf++ = v;
+#else
+                                    unsigned v = ((const uint32_t*)vq)[cb_idx & 15];
+                                    *icf++ = (bits & 1U<<31) | v;
+#endif /* USE_FIXED */
+                                    bits <<= !!v;
+                                }
+                                cb_idx >>= 4;
+                            }
+                        } while (len -= 2);
+#if !USE_FIXED
+                        ac->fdsp->vector_fmul_scalar(cfo, cfo, sf[idx], off_len);
+#endif /* !USE_FIXED */
+                    }
+                }
+
+                CLOSE_READER(re, gb);
+            }
+        }
+        coef += g_len << 7;
+    }
+
+    if (pulse_present) {
+        idx = 0;
+        for (i = 0; i < pulse->num_pulse; i++) {
+            INTFLOAT co = coef_base[ pulse->pos[i] ];
+            while (offsets[idx + 1] <= pulse->pos[i])
+                idx++;
+            if (band_type[idx] != NOISE_BT && sf[idx]) {
+                INTFLOAT ico = -pulse->amp[i];
+#if USE_FIXED
+                if (co) {
+                    ico = co + (co > 0 ? -ico : ico);
+                }
+                coef_base[ pulse->pos[i] ] = ico;
+#else
+                if (co) {
+                    co /= sf[idx];
+                    ico = co / sqrtf(sqrtf(fabsf(co))) + (co > 0 ? -ico : ico);
+                }
+                coef_base[ pulse->pos[i] ] = cbrtf(fabsf(ico)) * ico * sf[idx];
+#endif /* USE_FIXED */
+            }
+        }
+    }
+#if USE_FIXED
+    coef = coef_base;
+    idx = 0;
+    for (g = 0; g < ics->num_window_groups; g++) {
+        unsigned g_len = ics->group_len[g];
+
+        for (i = 0; i < ics->max_sfb; i++, idx++) {
+            const unsigned cbt_m1 = band_type[idx] - 1;
+            int *cfo = coef + offsets[i];
+            int off_len = offsets[i + 1] - offsets[i];
+            int group;
+
+            if (cbt_m1 < NOISE_BT - 1) {
+                for (group = 0; group < (int)g_len; group++, cfo+=128) {
+                    ac->vector_pow43(cfo, off_len);
+                    ac->subband_scale(cfo, cfo, sf[idx], 34, off_len, ac->avctx);
+                }
+            }
+        }
+        coef += g_len << 7;
+    }
+#endif /* USE_FIXED */
+    return 0;
+}
+
+/**
+ * Apply AAC-Main style frequency domain prediction.
+ */
+static void apply_prediction(AACContext *ac, SingleChannelElement *sce)
+{
+    int sfb, k;
+
+    if (!sce->ics.predictor_initialized) {
+        reset_all_predictors(sce->predictor_state);
+        sce->ics.predictor_initialized = 1;
+    }
+
+    if (sce->ics.window_sequence[0] != EIGHT_SHORT_SEQUENCE) {
+        for (sfb = 0;
+             sfb < ff_aac_pred_sfb_max[ac->oc[1].m4ac.sampling_index];
+             sfb++) {
+            for (k = sce->ics.swb_offset[sfb];
+                 k < sce->ics.swb_offset[sfb + 1];
+                 k++) {
+                predict(&sce->predictor_state[k], &sce->coeffs[k],
+                        sce->ics.predictor_present &&
+                        sce->ics.prediction_used[sfb]);
+            }
+        }
+        if (sce->ics.predictor_reset_group)
+            reset_predictor_group(sce->predictor_state,
+                                  sce->ics.predictor_reset_group);
+    } else
+        reset_all_predictors(sce->predictor_state);
+}
+
+static void decode_gain_control(SingleChannelElement * sce, GetBitContext * gb)
+{
+    // wd_num, wd_test, aloc_size
+    static const uint8_t gain_mode[4][3] = {
+        {1, 0, 5},  // ONLY_LONG_SEQUENCE = 0,
+        {2, 1, 2},  // LONG_START_SEQUENCE,
+        {8, 0, 2},  // EIGHT_SHORT_SEQUENCE,
+        {2, 1, 5},  // LONG_STOP_SEQUENCE
+    };
+
+    const int mode = sce->ics.window_sequence[0];
+    uint8_t bd, wd, ad;
+
+    // FIXME: Store the gain control data on |sce| and do something with it.
+    uint8_t max_band = get_bits(gb, 2);
+    for (bd = 0; bd < max_band; bd++) {
+        for (wd = 0; wd < gain_mode[mode][0]; wd++) {
+            uint8_t adjust_num = get_bits(gb, 3);
+            for (ad = 0; ad < adjust_num; ad++) {
+                skip_bits(gb, 4 + ((wd == 0 && gain_mode[mode][1])
+                                     ? 4
+                                     : gain_mode[mode][2]));
+            }
+        }
+    }
+}
+
+/**
+ * Decode an individual_channel_stream payload; reference: table 4.44.
+ *
+ * @param   common_window   Channels have independent [0], or shared [1], Individual Channel Stream information.
+ * @param   scale_flag      scalable [1] or non-scalable [0] AAC (Unused until scalable AAC is implemented.)
+ *
+ * @return  Returns error status. 0 - OK, !0 - error
+ */
+static int decode_ics(AACContext *ac, SingleChannelElement *sce,
+                      GetBitContext *gb, int common_window, int scale_flag)
+{
+    Pulse pulse;
+    TemporalNoiseShaping    *tns = &sce->tns;
+    IndividualChannelStream *ics = &sce->ics;
+    INTFLOAT *out = sce->coeffs;
+    int global_gain, eld_syntax, er_syntax, pulse_present = 0;
+    int ret;
+
+    eld_syntax = ac->oc[1].m4ac.object_type == AOT_ER_AAC_ELD;
+    er_syntax  = ac->oc[1].m4ac.object_type == AOT_ER_AAC_LC ||
+                 ac->oc[1].m4ac.object_type == AOT_ER_AAC_LTP ||
+                 ac->oc[1].m4ac.object_type == AOT_ER_AAC_LD ||
+                 ac->oc[1].m4ac.object_type == AOT_ER_AAC_ELD;
+
+    /* This assignment is to silence a GCC warning about the variable being used
+     * uninitialized when in fact it always is.
+     */
+    pulse.num_pulse = 0;
+
+    global_gain = get_bits(gb, 8);
+
+    if (!common_window && !scale_flag) {
+        ret = decode_ics_info(ac, ics, gb);
+        if (ret < 0)
+            goto fail;
+    }
+
+    if ((ret = decode_band_types(ac, sce->band_type,
+                                 sce->band_type_run_end, gb, ics)) < 0)
+        goto fail;
+    if ((ret = decode_scalefactors(ac, sce->sf, gb, global_gain, ics,
+                                  sce->band_type, sce->band_type_run_end)) < 0)
+        goto fail;
+
+    pulse_present = 0;
+    if (!scale_flag) {
+        if (!eld_syntax && (pulse_present = get_bits1(gb))) {
+            if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+                av_log(ac->avctx, AV_LOG_ERROR,
+                       "Pulse tool not allowed in eight short sequence.\n");
+                ret = AVERROR_INVALIDDATA;
+                goto fail;
+            }
+            if (decode_pulses(&pulse, gb, ics->swb_offset, ics->num_swb)) {
+                av_log(ac->avctx, AV_LOG_ERROR,
+                       "Pulse data corrupt or invalid.\n");
+                ret = AVERROR_INVALIDDATA;
+                goto fail;
+            }
+        }
+        tns->present = get_bits1(gb);
+        if (tns->present && !er_syntax) {
+            ret = decode_tns(ac, tns, gb, ics);
+            if (ret < 0)
+                goto fail;
+        }
+        if (!eld_syntax && get_bits1(gb)) {
+            decode_gain_control(sce, gb);
+            if (!ac->warned_gain_control) {
+                avpriv_report_missing_feature(ac->avctx, "Gain control");
+                ac->warned_gain_control = 1;
+            }
+        }
+        // I see no textual basis in the spec for this occurring after SSR gain
+        // control, but this is what both reference and real implmentations do
+        if (tns->present && er_syntax) {
+            ret = decode_tns(ac, tns, gb, ics);
+            if (ret < 0)
+                goto fail;
+        }
+    }
+
+    ret = decode_spectrum_and_dequant(ac, out, gb, sce->sf, pulse_present,
+                                    &pulse, ics, sce->band_type);
+    if (ret < 0)
+        goto fail;
+
+    if (ac->oc[1].m4ac.object_type == AOT_AAC_MAIN && !common_window)
+        apply_prediction(ac, sce);
+
+    return 0;
+fail:
+    tns->present = 0;
+    return ret;
+}
+
+/**
+ * Mid/Side stereo decoding; reference: 4.6.8.1.3.
+ */
+static void apply_mid_side_stereo(AACContext *ac, ChannelElement *cpe)
+{
+    const IndividualChannelStream *ics = &cpe->ch[0].ics;
+    INTFLOAT *ch0 = cpe->ch[0].coeffs;
+    INTFLOAT *ch1 = cpe->ch[1].coeffs;
+    int g, i, group, idx = 0;
+    const uint16_t *offsets = ics->swb_offset;
+    for (g = 0; g < ics->num_window_groups; g++) {
+        for (i = 0; i < ics->max_sfb; i++, idx++) {
+            if (cpe->ms_mask[idx] &&
+                cpe->ch[0].band_type[idx] < NOISE_BT &&
+                cpe->ch[1].band_type[idx] < NOISE_BT) {
+#if USE_FIXED
+                for (group = 0; group < ics->group_len[g]; group++) {
+                    ac->fdsp->butterflies_fixed(ch0 + group * 128 + offsets[i],
+                                                ch1 + group * 128 + offsets[i],
+                                                offsets[i+1] - offsets[i]);
+#else
+                for (group = 0; group < ics->group_len[g]; group++) {
+                    ac->fdsp->butterflies_float(ch0 + group * 128 + offsets[i],
+                                               ch1 + group * 128 + offsets[i],
+                                               offsets[i+1] - offsets[i]);
+#endif /* USE_FIXED */
+                }
+            }
+        }
+        ch0 += ics->group_len[g] * 128;
+        ch1 += ics->group_len[g] * 128;
+    }
+}
+
+/**
+ * intensity stereo decoding; reference: 4.6.8.2.3
+ *
+ * @param   ms_present  Indicates mid/side stereo presence. [0] mask is all 0s;
+ *                      [1] mask is decoded from bitstream; [2] mask is all 1s;
+ *                      [3] reserved for scalable AAC
+ */
+static void apply_intensity_stereo(AACContext *ac,
+                                   ChannelElement *cpe, int ms_present)
+{
+    const IndividualChannelStream *ics = &cpe->ch[1].ics;
+    SingleChannelElement         *sce1 = &cpe->ch[1];
+    INTFLOAT *coef0 = cpe->ch[0].coeffs, *coef1 = cpe->ch[1].coeffs;
+    const uint16_t *offsets = ics->swb_offset;
+    int g, group, i, idx = 0;
+    int c;
+    INTFLOAT scale;
+    for (g = 0; g < ics->num_window_groups; g++) {
+        for (i = 0; i < ics->max_sfb;) {
+            if (sce1->band_type[idx] == INTENSITY_BT ||
+                sce1->band_type[idx] == INTENSITY_BT2) {
+                const int bt_run_end = sce1->band_type_run_end[idx];
+                for (; i < bt_run_end; i++, idx++) {
+                    c = -1 + 2 * (sce1->band_type[idx] - 14);
+                    if (ms_present)
+                        c *= 1 - 2 * cpe->ms_mask[idx];
+                    scale = c * sce1->sf[idx];
+                    for (group = 0; group < ics->group_len[g]; group++)
+#if USE_FIXED
+                        ac->subband_scale(coef1 + group * 128 + offsets[i],
+                                      coef0 + group * 128 + offsets[i],
+                                      scale,
+                                      23,
+                                      offsets[i + 1] - offsets[i] ,ac->avctx);
+#else
+                        ac->fdsp->vector_fmul_scalar(coef1 + group * 128 + offsets[i],
+                                                    coef0 + group * 128 + offsets[i],
+                                                    scale,
+                                                    offsets[i + 1] - offsets[i]);
+#endif /* USE_FIXED */
+                }
+            } else {
+                int bt_run_end = sce1->band_type_run_end[idx];
+                idx += bt_run_end - i;
+                i    = bt_run_end;
+            }
+        }
+        coef0 += ics->group_len[g] * 128;
+        coef1 += ics->group_len[g] * 128;
+    }
+}
+
+/**
+ * Decode a channel_pair_element; reference: table 4.4.
+ *
+ * @return  Returns error status. 0 - OK, !0 - error
+ */
+static int decode_cpe(AACContext *ac, GetBitContext *gb, ChannelElement *cpe)
+{
+    int i, ret, common_window, ms_present = 0;
+    int eld_syntax = ac->oc[1].m4ac.object_type == AOT_ER_AAC_ELD;
+
+    common_window = eld_syntax || get_bits1(gb);
+    if (common_window) {
+        if (decode_ics_info(ac, &cpe->ch[0].ics, gb))
+            return AVERROR_INVALIDDATA;
+        i = cpe->ch[1].ics.use_kb_window[0];
+        cpe->ch[1].ics = cpe->ch[0].ics;
+        cpe->ch[1].ics.use_kb_window[1] = i;
+        if (cpe->ch[1].ics.predictor_present &&
+            (ac->oc[1].m4ac.object_type != AOT_AAC_MAIN))
+            if ((cpe->ch[1].ics.ltp.present = get_bits(gb, 1)))
+                decode_ltp(&cpe->ch[1].ics.ltp, gb, cpe->ch[1].ics.max_sfb);
+        ms_present = get_bits(gb, 2);
+        if (ms_present == 3) {
+            av_log(ac->avctx, AV_LOG_ERROR, "ms_present = 3 is reserved.\n");
+            return AVERROR_INVALIDDATA;
+        } else if (ms_present)
+            decode_mid_side_stereo(cpe, gb, ms_present);
+    }
+    if ((ret = decode_ics(ac, &cpe->ch[0], gb, common_window, 0)))
+        return ret;
+    if ((ret = decode_ics(ac, &cpe->ch[1], gb, common_window, 0)))
+        return ret;
+
+    if (common_window) {
+        if (ms_present)
+            apply_mid_side_stereo(ac, cpe);
+        if (ac->oc[1].m4ac.object_type == AOT_AAC_MAIN) {
+            apply_prediction(ac, &cpe->ch[0]);
+            apply_prediction(ac, &cpe->ch[1]);
+        }
+    }
+
+    apply_intensity_stereo(ac, cpe, ms_present);
+    return 0;
+}
+
+static const float cce_scale[] = {
+    1.09050773266525765921, //2^(1/8)
+    1.18920711500272106672, //2^(1/4)
+    M_SQRT2,
+    2,
+};
+
+/**
+ * Decode coupling_channel_element; reference: table 4.8.
+ *
+ * @return  Returns error status. 0 - OK, !0 - error
+ */
+static int decode_cce(AACContext *ac, GetBitContext *gb, ChannelElement *che)
+{
+    int num_gain = 0;
+    int c, g, sfb, ret;
+    int sign;
+    INTFLOAT scale;
+    SingleChannelElement *sce = &che->ch[0];
+    ChannelCoupling     *coup = &che->coup;
+
+    coup->coupling_point = 2 * get_bits1(gb);
+    coup->num_coupled = get_bits(gb, 3);
+    for (c = 0; c <= coup->num_coupled; c++) {
+        num_gain++;
+        coup->type[c] = get_bits1(gb) ? TYPE_CPE : TYPE_SCE;
+        coup->id_select[c] = get_bits(gb, 4);
+        if (coup->type[c] == TYPE_CPE) {
+            coup->ch_select[c] = get_bits(gb, 2);
+            if (coup->ch_select[c] == 3)
+                num_gain++;
+        } else
+            coup->ch_select[c] = 2;
+    }
+    coup->coupling_point += get_bits1(gb) || (coup->coupling_point >> 1);
+
+    sign  = get_bits(gb, 1);
+#if USE_FIXED
+    scale = get_bits(gb, 2);
+#else
+    scale = cce_scale[get_bits(gb, 2)];
+#endif
+
+    if ((ret = decode_ics(ac, sce, gb, 0, 0)))
+        return ret;
+
+    for (c = 0; c < num_gain; c++) {
+        int idx  = 0;
+        int cge  = 1;
+        int gain = 0;
+        INTFLOAT gain_cache = FIXR10(1.);
+        if (c) {
+            cge = coup->coupling_point == AFTER_IMDCT ? 1 : get_bits1(gb);
+            gain = cge ? get_vlc2(gb, vlc_scalefactors.table, 7, 3) - 60: 0;
+            gain_cache = GET_GAIN(scale, gain);
+#if USE_FIXED
+            if ((abs(gain_cache)-1024) >> 3 > 30)
+                return AVERROR(ERANGE);
+#endif
+        }
+        if (coup->coupling_point == AFTER_IMDCT) {
+            coup->gain[c][0] = gain_cache;
+        } else {
+            for (g = 0; g < sce->ics.num_window_groups; g++) {
+                for (sfb = 0; sfb < sce->ics.max_sfb; sfb++, idx++) {
+                    if (sce->band_type[idx] != ZERO_BT) {
+                        if (!cge) {
+                            int t = get_vlc2(gb, vlc_scalefactors.table, 7, 3) - 60;
+                            if (t) {
+                                int s = 1;
+                                t = gain += t;
+                                if (sign) {
+                                    s  -= 2 * (t & 0x1);
+                                    t >>= 1;
+                                }
+                                gain_cache = GET_GAIN(scale, t) * s;
+#if USE_FIXED
+                                if ((abs(gain_cache)-1024) >> 3 > 30)
+                                    return AVERROR(ERANGE);
+#endif
+                            }
+                        }
+                        coup->gain[c][idx] = gain_cache;
+                    }
+                }
+            }
+        }
+    }
+    return 0;
+}
+
+/**
+ * Parse whether channels are to be excluded from Dynamic Range Compression; reference: table 4.53.
+ *
+ * @return  Returns number of bytes consumed.
+ */
+static int decode_drc_channel_exclusions(DynamicRangeControl *che_drc,
+                                         GetBitContext *gb)
+{
+    int i;
+    int num_excl_chan = 0;
+
+    do {
+        for (i = 0; i < 7; i++)
+            che_drc->exclude_mask[num_excl_chan++] = get_bits1(gb);
+    } while (num_excl_chan < MAX_CHANNELS - 7 && get_bits1(gb));
+
+    return num_excl_chan / 7;
+}
+
+/**
+ * Decode dynamic range information; reference: table 4.52.
+ *
+ * @return  Returns number of bytes consumed.
+ */
+static int decode_dynamic_range(DynamicRangeControl *che_drc,
+                                GetBitContext *gb)
+{
+    int n             = 1;
+    int drc_num_bands = 1;
+    int i;
+
+    /* pce_tag_present? */
+    if (get_bits1(gb)) {
+        che_drc->pce_instance_tag  = get_bits(gb, 4);
+        skip_bits(gb, 4); // tag_reserved_bits
+        n++;
+    }
+
+    /* excluded_chns_present? */
+    if (get_bits1(gb)) {
+        n += decode_drc_channel_exclusions(che_drc, gb);
+    }
+
+    /* drc_bands_present? */
+    if (get_bits1(gb)) {
+        che_drc->band_incr            = get_bits(gb, 4);
+        che_drc->interpolation_scheme = get_bits(gb, 4);
+        n++;
+        drc_num_bands += che_drc->band_incr;
+        for (i = 0; i < drc_num_bands; i++) {
+            che_drc->band_top[i] = get_bits(gb, 8);
+            n++;
+        }
+    }
+
+    /* prog_ref_level_present? */
+    if (get_bits1(gb)) {
+        che_drc->prog_ref_level = get_bits(gb, 7);
+        skip_bits1(gb); // prog_ref_level_reserved_bits
+        n++;
+    }
+
+    for (i = 0; i < drc_num_bands; i++) {
+        che_drc->dyn_rng_sgn[i] = get_bits1(gb);
+        che_drc->dyn_rng_ctl[i] = get_bits(gb, 7);
+        n++;
+    }
+
+    return n;
+}
+
+static int decode_fill(AACContext *ac, GetBitContext *gb, int len) {
+    uint8_t buf[256];
+    int i, major, minor;
+
+    if (len < 13+7*8)
+        goto unknown;
+
+    get_bits(gb, 13); len -= 13;
+
+    for(i=0; i+1<sizeof(buf) && len>=8; i++, len-=8)
+        buf[i] = get_bits(gb, 8);
+
+    buf[i] = 0;
+    if (ac->avctx->debug & FF_DEBUG_PICT_INFO)
+        av_log(ac->avctx, AV_LOG_DEBUG, "FILL:%s\n", buf);
+
+    if (sscanf(buf, "libfaac %d.%d", &major, &minor) == 2){
+        ac->avctx->internal->skip_samples = 1024;
+    }
+
+unknown:
+    skip_bits_long(gb, len);
+
+    return 0;
+}
+
+/**
+ * Decode extension data (incomplete); reference: table 4.51.
+ *
+ * @param   cnt length of TYPE_FIL syntactic element in bytes
+ *
+ * @return Returns number of bytes consumed
+ */
+static int decode_extension_payload(AACContext *ac, GetBitContext *gb, int cnt,
+                                    ChannelElement *che, enum RawDataBlockType elem_type)
+{
+    int crc_flag = 0;
+    int res = cnt;
+    int type = get_bits(gb, 4);
+
+    if (ac->avctx->debug & FF_DEBUG_STARTCODE)
+        av_log(ac->avctx, AV_LOG_DEBUG, "extension type: %d len:%d\n", type, cnt);
+
+    switch (type) { // extension type
+    case EXT_SBR_DATA_CRC:
+        crc_flag++;
+    case EXT_SBR_DATA:
+        if (!che) {
+            av_log(ac->avctx, AV_LOG_ERROR, "SBR was found before the first channel element.\n");
+            return res;
+        } else if (ac->oc[1].m4ac.frame_length_short) {
+            if (!ac->warned_960_sbr)
+              avpriv_report_missing_feature(ac->avctx,
+                                            "SBR with 960 frame length");
+            ac->warned_960_sbr = 1;
+            skip_bits_long(gb, 8 * cnt - 4);
+            return res;
+        } else if (!ac->oc[1].m4ac.sbr) {
+            av_log(ac->avctx, AV_LOG_ERROR, "SBR signaled to be not-present but was found in the bitstream.\n");
+            skip_bits_long(gb, 8 * cnt - 4);
+            return res;
+        } else if (ac->oc[1].m4ac.sbr == -1 && ac->oc[1].status == OC_LOCKED) {
+            av_log(ac->avctx, AV_LOG_ERROR, "Implicit SBR was found with a first occurrence after the first frame.\n");
+            skip_bits_long(gb, 8 * cnt - 4);
+            return res;
+        } else if (ac->oc[1].m4ac.ps == -1 && ac->oc[1].status < OC_LOCKED && ac->avctx->channels == 1) {
+            ac->oc[1].m4ac.sbr = 1;
+            ac->oc[1].m4ac.ps = 1;
+            ac->avctx->profile = FF_PROFILE_AAC_HE_V2;
+            output_configure(ac, ac->oc[1].layout_map, ac->oc[1].layout_map_tags,
+                             ac->oc[1].status, 1);
+        } else {
+            ac->oc[1].m4ac.sbr = 1;
+            ac->avctx->profile = FF_PROFILE_AAC_HE;
+        }
+        res = AAC_RENAME(ff_decode_sbr_extension)(ac, &che->sbr, gb, crc_flag, cnt, elem_type);
+        break;
+    case EXT_DYNAMIC_RANGE:
+        res = decode_dynamic_range(&ac->che_drc, gb);
+        break;
+    case EXT_FILL:
+        decode_fill(ac, gb, 8 * cnt - 4);
+        break;
+    case EXT_FILL_DATA:
+    case EXT_DATA_ELEMENT:
+    default:
+        skip_bits_long(gb, 8 * cnt - 4);
+        break;
+    };
+    return res;
+}
+
+/**
+ * Decode Temporal Noise Shaping filter coefficients and apply all-pole filters; reference: 4.6.9.3.
+ *
+ * @param   decode  1 if tool is used normally, 0 if tool is used in LTP.
+ * @param   coef    spectral coefficients
+ */
+static void apply_tns(INTFLOAT coef_param[1024], TemporalNoiseShaping *tns,
+                      IndividualChannelStream *ics, int decode)
+{
+    const int mmm = FFMIN(ics->tns_max_bands, ics->max_sfb);
+    int w, filt, m, i;
+    int bottom, top, order, start, end, size, inc;
+    INTFLOAT lpc[TNS_MAX_ORDER];
+    INTFLOAT tmp[TNS_MAX_ORDER+1];
+    UINTFLOAT *coef = coef_param;
+
+    if(!mmm)
+        return;
+
+    for (w = 0; w < ics->num_windows; w++) {
+        bottom = ics->num_swb;
+        for (filt = 0; filt < tns->n_filt[w]; filt++) {
+            top    = bottom;
+            bottom = FFMAX(0, top - tns->length[w][filt]);
+            order  = tns->order[w][filt];
+            if (order == 0)
+                continue;
+
+            // tns_decode_coef
+            AAC_RENAME(compute_lpc_coefs)(tns->coef[w][filt], order, lpc, 0, 0, 0);
+
+            start = ics->swb_offset[FFMIN(bottom, mmm)];
+            end   = ics->swb_offset[FFMIN(   top, mmm)];
+            if ((size = end - start) <= 0)
+                continue;
+            if (tns->direction[w][filt]) {
+                inc = -1;
+                start = end - 1;
+            } else {
+                inc = 1;
+            }
+            start += w * 128;
+
+            if (decode) {
+                // ar filter
+                for (m = 0; m < size; m++, start += inc)
+                    for (i = 1; i <= FFMIN(m, order); i++)
+                        coef[start] -= AAC_MUL26((INTFLOAT)coef[start - i * inc], lpc[i - 1]);
+            } else {
+                // ma filter
+                for (m = 0; m < size; m++, start += inc) {
+                    tmp[0] = coef[start];
+                    for (i = 1; i <= FFMIN(m, order); i++)
+                        coef[start] += AAC_MUL26(tmp[i], lpc[i - 1]);
+                    for (i = order; i > 0; i--)
+                        tmp[i] = tmp[i - 1];
+                }
+            }
+        }
+    }
+}
+
+/**
+ *  Apply windowing and MDCT to obtain the spectral
+ *  coefficient from the predicted sample by LTP.
+ */
+static void windowing_and_mdct_ltp(AACContext *ac, INTFLOAT *out,
+                                   INTFLOAT *in, IndividualChannelStream *ics)
+{
+    const INTFLOAT *lwindow      = ics->use_kb_window[0] ? AAC_RENAME(ff_aac_kbd_long_1024) : AAC_RENAME(ff_sine_1024);
+    const INTFLOAT *swindow      = ics->use_kb_window[0] ? AAC_RENAME(ff_aac_kbd_short_128) : AAC_RENAME(ff_sine_128);
+    const INTFLOAT *lwindow_prev = ics->use_kb_window[1] ? AAC_RENAME(ff_aac_kbd_long_1024) : AAC_RENAME(ff_sine_1024);
+    const INTFLOAT *swindow_prev = ics->use_kb_window[1] ? AAC_RENAME(ff_aac_kbd_short_128) : AAC_RENAME(ff_sine_128);
+
+    if (ics->window_sequence[0] != LONG_STOP_SEQUENCE) {
+        ac->fdsp->vector_fmul(in, in, lwindow_prev, 1024);
+    } else {
+        memset(in, 0, 448 * sizeof(*in));
+        ac->fdsp->vector_fmul(in + 448, in + 448, swindow_prev, 128);
+    }
+    if (ics->window_sequence[0] != LONG_START_SEQUENCE) {
+        ac->fdsp->vector_fmul_reverse(in + 1024, in + 1024, lwindow, 1024);
+    } else {
+        ac->fdsp->vector_fmul_reverse(in + 1024 + 448, in + 1024 + 448, swindow, 128);
+        memset(in + 1024 + 576, 0, 448 * sizeof(*in));
+    }
+    ac->mdct_ltp.mdct_calc(&ac->mdct_ltp, out, in);
+}
+
+/**
+ * Apply the long term prediction
+ */
+static void apply_ltp(AACContext *ac, SingleChannelElement *sce)
+{
+    const LongTermPrediction *ltp = &sce->ics.ltp;
+    const uint16_t *offsets = sce->ics.swb_offset;
+    int i, sfb;
+
+    if (sce->ics.window_sequence[0] != EIGHT_SHORT_SEQUENCE) {
+        INTFLOAT *predTime = sce->ret;
+        INTFLOAT *predFreq = ac->buf_mdct;
+        int16_t num_samples = 2048;
+
+        if (ltp->lag < 1024)
+            num_samples = ltp->lag + 1024;
+        for (i = 0; i < num_samples; i++)
+            predTime[i] = AAC_MUL30(sce->ltp_state[i + 2048 - ltp->lag], ltp->coef);
+        memset(&predTime[i], 0, (2048 - i) * sizeof(*predTime));
+
+        ac->windowing_and_mdct_ltp(ac, predFreq, predTime, &sce->ics);
+
+        if (sce->tns.present)
+            ac->apply_tns(predFreq, &sce->tns, &sce->ics, 0);
+
+        for (sfb = 0; sfb < FFMIN(sce->ics.max_sfb, MAX_LTP_LONG_SFB); sfb++)
+            if (ltp->used[sfb])
+                for (i = offsets[sfb]; i < offsets[sfb + 1]; i++)
+                    sce->coeffs[i] += (UINTFLOAT)predFreq[i];
+    }
+}
+
+/**
+ * Update the LTP buffer for next frame
+ */
+static void update_ltp(AACContext *ac, SingleChannelElement *sce)
+{
+    IndividualChannelStream *ics = &sce->ics;
+    INTFLOAT *saved     = sce->saved;
+    INTFLOAT *saved_ltp = sce->coeffs;
+    const INTFLOAT *lwindow = ics->use_kb_window[0] ? AAC_RENAME(ff_aac_kbd_long_1024) : AAC_RENAME(ff_sine_1024);
+    const INTFLOAT *swindow = ics->use_kb_window[0] ? AAC_RENAME(ff_aac_kbd_short_128) : AAC_RENAME(ff_sine_128);
+    int i;
+
+    if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+        memcpy(saved_ltp,       saved, 512 * sizeof(*saved_ltp));
+        memset(saved_ltp + 576, 0,     448 * sizeof(*saved_ltp));
+        ac->fdsp->vector_fmul_reverse(saved_ltp + 448, ac->buf_mdct + 960,     &swindow[64],      64);
+
+        for (i = 0; i < 64; i++)
+            saved_ltp[i + 512] = AAC_MUL31(ac->buf_mdct[1023 - i], swindow[63 - i]);
+    } else if (ics->window_sequence[0] == LONG_START_SEQUENCE) {
+        memcpy(saved_ltp,       ac->buf_mdct + 512, 448 * sizeof(*saved_ltp));
+        memset(saved_ltp + 576, 0,                  448 * sizeof(*saved_ltp));
+        ac->fdsp->vector_fmul_reverse(saved_ltp + 448, ac->buf_mdct + 960,     &swindow[64],      64);
+
+        for (i = 0; i < 64; i++)
+            saved_ltp[i + 512] = AAC_MUL31(ac->buf_mdct[1023 - i], swindow[63 - i]);
+    } else { // LONG_STOP or ONLY_LONG
+        ac->fdsp->vector_fmul_reverse(saved_ltp,       ac->buf_mdct + 512,     &lwindow[512],     512);
+
+        for (i = 0; i < 512; i++)
+            saved_ltp[i + 512] = AAC_MUL31(ac->buf_mdct[1023 - i], lwindow[511 - i]);
+    }
+
+    memcpy(sce->ltp_state,      sce->ltp_state+1024, 1024 * sizeof(*sce->ltp_state));
+    memcpy(sce->ltp_state+1024, sce->ret,            1024 * sizeof(*sce->ltp_state));
+    memcpy(sce->ltp_state+2048, saved_ltp,           1024 * sizeof(*sce->ltp_state));
+}
+
+/**
+ * Conduct IMDCT and windowing.
+ */
+static void imdct_and_windowing(AACContext *ac, SingleChannelElement *sce)
+{
+    IndividualChannelStream *ics = &sce->ics;
+    INTFLOAT *in    = sce->coeffs;
+    INTFLOAT *out   = sce->ret;
+    INTFLOAT *saved = sce->saved;
+    const INTFLOAT *swindow      = ics->use_kb_window[0] ? AAC_RENAME(ff_aac_kbd_short_128) : AAC_RENAME(ff_sine_128);
+    const INTFLOAT *lwindow_prev = ics->use_kb_window[1] ? AAC_RENAME(ff_aac_kbd_long_1024) : AAC_RENAME(ff_sine_1024);
+    const INTFLOAT *swindow_prev = ics->use_kb_window[1] ? AAC_RENAME(ff_aac_kbd_short_128) : AAC_RENAME(ff_sine_128);
+    INTFLOAT *buf  = ac->buf_mdct;
+    INTFLOAT *temp = ac->temp;
+    int i;
+
+    // imdct
+    if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+        for (i = 0; i < 1024; i += 128)
+            ac->mdct_small.imdct_half(&ac->mdct_small, buf + i, in + i);
+    } else {
+        ac->mdct.imdct_half(&ac->mdct, buf, in);
+#if USE_FIXED
+        for (i=0; i<1024; i++)
+          buf[i] = (buf[i] + 4) >> 3;
+#endif /* USE_FIXED */
+    }
+
+    /* window overlapping
+     * NOTE: To simplify the overlapping code, all 'meaningless' short to long
+     * and long to short transitions are considered to be short to short
+     * transitions. This leaves just two cases (long to long and short to short)
+     * with a little special sauce for EIGHT_SHORT_SEQUENCE.
+     */
+    if ((ics->window_sequence[1] == ONLY_LONG_SEQUENCE || ics->window_sequence[1] == LONG_STOP_SEQUENCE) &&
+            (ics->window_sequence[0] == ONLY_LONG_SEQUENCE || ics->window_sequence[0] == LONG_START_SEQUENCE)) {
+        ac->fdsp->vector_fmul_window(    out,               saved,            buf,         lwindow_prev, 512);
+    } else {
+        memcpy(                         out,               saved,            448 * sizeof(*out));
+
+        if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+            ac->fdsp->vector_fmul_window(out + 448 + 0*128, saved + 448,      buf + 0*128, swindow_prev, 64);
+            ac->fdsp->vector_fmul_window(out + 448 + 1*128, buf + 0*128 + 64, buf + 1*128, swindow,      64);
+            ac->fdsp->vector_fmul_window(out + 448 + 2*128, buf + 1*128 + 64, buf + 2*128, swindow,      64);
+            ac->fdsp->vector_fmul_window(out + 448 + 3*128, buf + 2*128 + 64, buf + 3*128, swindow,      64);
+            ac->fdsp->vector_fmul_window(temp,              buf + 3*128 + 64, buf + 4*128, swindow,      64);
+            memcpy(                     out + 448 + 4*128, temp, 64 * sizeof(*out));
+        } else {
+            ac->fdsp->vector_fmul_window(out + 448,         saved + 448,      buf,         swindow_prev, 64);
+            memcpy(                     out + 576,         buf + 64,         448 * sizeof(*out));
+        }
+    }
+
+    // buffer update
+    if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+        memcpy(                     saved,       temp + 64,         64 * sizeof(*saved));
+        ac->fdsp->vector_fmul_window(saved + 64,  buf + 4*128 + 64, buf + 5*128, swindow, 64);
+        ac->fdsp->vector_fmul_window(saved + 192, buf + 5*128 + 64, buf + 6*128, swindow, 64);
+        ac->fdsp->vector_fmul_window(saved + 320, buf + 6*128 + 64, buf + 7*128, swindow, 64);
+        memcpy(                     saved + 448, buf + 7*128 + 64,  64 * sizeof(*saved));
+    } else if (ics->window_sequence[0] == LONG_START_SEQUENCE) {
+        memcpy(                     saved,       buf + 512,        448 * sizeof(*saved));
+        memcpy(                     saved + 448, buf + 7*128 + 64,  64 * sizeof(*saved));
+    } else { // LONG_STOP or ONLY_LONG
+        memcpy(                     saved,       buf + 512,        512 * sizeof(*saved));
+    }
+}
+
+/**
+ * Conduct IMDCT and windowing.
+ */
+static void imdct_and_windowing_960(AACContext *ac, SingleChannelElement *sce)
+{
+#if !USE_FIXED
+    IndividualChannelStream *ics = &sce->ics;
+    INTFLOAT *in    = sce->coeffs;
+    INTFLOAT *out   = sce->ret;
+    INTFLOAT *saved = sce->saved;
+    const INTFLOAT *swindow      = ics->use_kb_window[0] ? AAC_RENAME(ff_aac_kbd_short_120) : AAC_RENAME(ff_sine_120);
+    const INTFLOAT *lwindow_prev = ics->use_kb_window[1] ? AAC_RENAME(ff_aac_kbd_long_960) : AAC_RENAME(ff_sine_960);
+    const INTFLOAT *swindow_prev = ics->use_kb_window[1] ? AAC_RENAME(ff_aac_kbd_short_120) : AAC_RENAME(ff_sine_120);
+    INTFLOAT *buf  = ac->buf_mdct;
+    INTFLOAT *temp = ac->temp;
+    int i;
+
+    // imdct
+    if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+        for (i = 0; i < 8; i++)
+            ac->mdct120->imdct_half(ac->mdct120, buf + i * 120, in + i * 128, 1);
+    } else {
+        ac->mdct960->imdct_half(ac->mdct960, buf, in, 1);
+    }
+
+    /* window overlapping
+     * NOTE: To simplify the overlapping code, all 'meaningless' short to long
+     * and long to short transitions are considered to be short to short
+     * transitions. This leaves just two cases (long to long and short to short)
+     * with a little special sauce for EIGHT_SHORT_SEQUENCE.
+     */
+
+    if ((ics->window_sequence[1] == ONLY_LONG_SEQUENCE || ics->window_sequence[1] == LONG_STOP_SEQUENCE) &&
+        (ics->window_sequence[0] == ONLY_LONG_SEQUENCE || ics->window_sequence[0] == LONG_START_SEQUENCE)) {
+        ac->fdsp->vector_fmul_window(    out,               saved,            buf,         lwindow_prev, 480);
+    } else {
+        memcpy(                          out,               saved,            420 * sizeof(*out));
+
+        if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+            ac->fdsp->vector_fmul_window(out + 420 + 0*120, saved + 420,      buf + 0*120, swindow_prev, 60);
+            ac->fdsp->vector_fmul_window(out + 420 + 1*120, buf + 0*120 + 60, buf + 1*120, swindow,      60);
+            ac->fdsp->vector_fmul_window(out + 420 + 2*120, buf + 1*120 + 60, buf + 2*120, swindow,      60);
+            ac->fdsp->vector_fmul_window(out + 420 + 3*120, buf + 2*120 + 60, buf + 3*120, swindow,      60);
+            ac->fdsp->vector_fmul_window(temp,              buf + 3*120 + 60, buf + 4*120, swindow,      60);
+            memcpy(                      out + 420 + 4*120, temp, 60 * sizeof(*out));
+        } else {
+            ac->fdsp->vector_fmul_window(out + 420,         saved + 420,      buf,         swindow_prev, 60);
+            memcpy(                      out + 540,         buf + 60,         420 * sizeof(*out));
+        }
+    }
+
+    // buffer update
+    if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+        memcpy(                      saved,       temp + 60,         60 * sizeof(*saved));
+        ac->fdsp->vector_fmul_window(saved + 60,  buf + 4*120 + 60, buf + 5*120, swindow, 60);
+        ac->fdsp->vector_fmul_window(saved + 180, buf + 5*120 + 60, buf + 6*120, swindow, 60);
+        ac->fdsp->vector_fmul_window(saved + 300, buf + 6*120 + 60, buf + 7*120, swindow, 60);
+        memcpy(                      saved + 420, buf + 7*120 + 60,  60 * sizeof(*saved));
+    } else if (ics->window_sequence[0] == LONG_START_SEQUENCE) {
+        memcpy(                      saved,       buf + 480,        420 * sizeof(*saved));
+        memcpy(                      saved + 420, buf + 7*120 + 60,  60 * sizeof(*saved));
+    } else { // LONG_STOP or ONLY_LONG
+        memcpy(                      saved,       buf + 480,        480 * sizeof(*saved));
+    }
+#endif
+}
+static void imdct_and_windowing_ld(AACContext *ac, SingleChannelElement *sce)
+{
+    IndividualChannelStream *ics = &sce->ics;
+    INTFLOAT *in    = sce->coeffs;
+    INTFLOAT *out   = sce->ret;
+    INTFLOAT *saved = sce->saved;
+    INTFLOAT *buf  = ac->buf_mdct;
+#if USE_FIXED
+    int i;
+#endif /* USE_FIXED */
+
+    // imdct
+    ac->mdct.imdct_half(&ac->mdct_ld, buf, in);
+
+#if USE_FIXED
+    for (i = 0; i < 1024; i++)
+        buf[i] = (buf[i] + 2) >> 2;
+#endif /* USE_FIXED */
+
+    // window overlapping
+    if (ics->use_kb_window[1]) {
+        // AAC LD uses a low overlap sine window instead of a KBD window
+        memcpy(out, saved, 192 * sizeof(*out));
+        ac->fdsp->vector_fmul_window(out + 192, saved + 192, buf, AAC_RENAME(ff_sine_128), 64);
+        memcpy(                     out + 320, buf + 64, 192 * sizeof(*out));
+    } else {
+        ac->fdsp->vector_fmul_window(out, saved, buf, AAC_RENAME(ff_sine_512), 256);
+    }
+
+    // buffer update
+    memcpy(saved, buf + 256, 256 * sizeof(*saved));
+}
+
+static void imdct_and_windowing_eld(AACContext *ac, SingleChannelElement *sce)
+{
+    INTFLOAT *in    = sce->coeffs;
+    INTFLOAT *out   = sce->ret;
+    INTFLOAT *saved = sce->saved;
+    INTFLOAT *buf  = ac->buf_mdct;
+    int i;
+    const int n  = ac->oc[1].m4ac.frame_length_short ? 480 : 512;
+    const int n2 = n >> 1;
+    const int n4 = n >> 2;
+    const INTFLOAT *const window = n == 480 ? AAC_RENAME(ff_aac_eld_window_480) :
+                                           AAC_RENAME(ff_aac_eld_window_512);
+
+    // Inverse transform, mapped to the conventional IMDCT by
+    // Chivukula, R.K.; Reznik, Y.A.; Devarajan, V.,
+    // "Efficient algorithms for MPEG-4 AAC-ELD, AAC-LD and AAC-LC filterbanks,"
+    // International Conference on Audio, Language and Image Processing, ICALIP 2008.
+    // URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4590245&isnumber=4589950
+    for (i = 0; i < n2; i+=2) {
+        INTFLOAT temp;
+        temp =  in[i    ]; in[i    ] = -in[n - 1 - i]; in[n - 1 - i] = temp;
+        temp = -in[i + 1]; in[i + 1] =  in[n - 2 - i]; in[n - 2 - i] = temp;
+    }
+#if !USE_FIXED
+    if (n == 480)
+        ac->mdct480->imdct_half(ac->mdct480, buf, in, 1);
+    else
+#endif
+        ac->mdct.imdct_half(&ac->mdct_ld, buf, in);
+
+#if USE_FIXED
+    for (i = 0; i < 1024; i++)
+      buf[i] = (buf[i] + 1) >> 1;
+#endif /* USE_FIXED */
+
+    for (i = 0; i < n; i+=2) {
+        buf[i] = -buf[i];
+    }
+    // Like with the regular IMDCT at this point we still have the middle half
+    // of a transform but with even symmetry on the left and odd symmetry on
+    // the right
+
+    // window overlapping
+    // The spec says to use samples [0..511] but the reference decoder uses
+    // samples [128..639].
+    for (i = n4; i < n2; i ++) {
+        out[i - n4] = AAC_MUL31(   buf[    n2 - 1 - i] , window[i       - n4]) +
+                      AAC_MUL31( saved[        i + n2] , window[i +   n - n4]) +
+                      AAC_MUL31(-saved[n + n2 - 1 - i] , window[i + 2*n - n4]) +
+                      AAC_MUL31(-saved[  2*n + n2 + i] , window[i + 3*n - n4]);
+    }
+    for (i = 0; i < n2; i ++) {
+        out[n4 + i] = AAC_MUL31(   buf[              i] , window[i + n2       - n4]) +
+                      AAC_MUL31(-saved[      n - 1 - i] , window[i + n2 +   n - n4]) +
+                      AAC_MUL31(-saved[          n + i] , window[i + n2 + 2*n - n4]) +
+                      AAC_MUL31( saved[2*n + n - 1 - i] , window[i + n2 + 3*n - n4]);
+    }
+    for (i = 0; i < n4; i ++) {
+        out[n2 + n4 + i] = AAC_MUL31(   buf[    i + n2] , window[i +   n - n4]) +
+                           AAC_MUL31(-saved[n2 - 1 - i] , window[i + 2*n - n4]) +
+                           AAC_MUL31(-saved[n + n2 + i] , window[i + 3*n - n4]);
+    }
+
+    // buffer update
+    memmove(saved + n, saved, 2 * n * sizeof(*saved));
+    memcpy( saved,       buf,     n * sizeof(*saved));
+}
+
+/**
+ * channel coupling transformation interface
+ *
+ * @param   apply_coupling_method   pointer to (in)dependent coupling function
+ */
+static void apply_channel_coupling(AACContext *ac, ChannelElement *cc,
+                                   enum RawDataBlockType type, int elem_id,
+                                   enum CouplingPoint coupling_point,
+                                   void (*apply_coupling_method)(AACContext *ac, SingleChannelElement *target, ChannelElement *cce, int index))
+{
+    int i, c;
+
+    for (i = 0; i < MAX_ELEM_ID; i++) {
+        ChannelElement *cce = ac->che[TYPE_CCE][i];
+        int index = 0;
+
+        if (cce && cce->coup.coupling_point == coupling_point) {
+            ChannelCoupling *coup = &cce->coup;
+
+            for (c = 0; c <= coup->num_coupled; c++) {
+                if (coup->type[c] == type && coup->id_select[c] == elem_id) {
+                    if (coup->ch_select[c] != 1) {
+                        apply_coupling_method(ac, &cc->ch[0], cce, index);
+                        if (coup->ch_select[c] != 0)
+                            index++;
+                    }
+                    if (coup->ch_select[c] != 2)
+                        apply_coupling_method(ac, &cc->ch[1], cce, index++);
+                } else
+                    index += 1 + (coup->ch_select[c] == 3);
+            }
+        }
+    }
+}
+
+/**
+ * Convert spectral data to samples, applying all supported tools as appropriate.
+ */
+static void spectral_to_sample(AACContext *ac, int samples)
+{
+    int i, type;
+    void (*imdct_and_window)(AACContext *ac, SingleChannelElement *sce);
+    switch (ac->oc[1].m4ac.object_type) {
+    case AOT_ER_AAC_LD:
+        imdct_and_window = imdct_and_windowing_ld;
+        break;
+    case AOT_ER_AAC_ELD:
+        imdct_and_window = imdct_and_windowing_eld;
+        break;
+    default:
+        if (ac->oc[1].m4ac.frame_length_short)
+            imdct_and_window = imdct_and_windowing_960;
+        else
+            imdct_and_window = ac->imdct_and_windowing;
+    }
+    for (type = 3; type >= 0; type--) {
+        for (i = 0; i < MAX_ELEM_ID; i++) {
+            ChannelElement *che = ac->che[type][i];
+            if (che && che->present) {
+                if (type <= TYPE_CPE)
+                    apply_channel_coupling(ac, che, type, i, BEFORE_TNS, AAC_RENAME(apply_dependent_coupling));
+                if (ac->oc[1].m4ac.object_type == AOT_AAC_LTP) {
+                    if (che->ch[0].ics.predictor_present) {
+                        if (che->ch[0].ics.ltp.present)
+                            ac->apply_ltp(ac, &che->ch[0]);
+                        if (che->ch[1].ics.ltp.present && type == TYPE_CPE)
+                            ac->apply_ltp(ac, &che->ch[1]);
+                    }
+                }
+                if (che->ch[0].tns.present)
+                    ac->apply_tns(che->ch[0].coeffs, &che->ch[0].tns, &che->ch[0].ics, 1);
+                if (che->ch[1].tns.present)
+                    ac->apply_tns(che->ch[1].coeffs, &che->ch[1].tns, &che->ch[1].ics, 1);
+                if (type <= TYPE_CPE)
+                    apply_channel_coupling(ac, che, type, i, BETWEEN_TNS_AND_IMDCT, AAC_RENAME(apply_dependent_coupling));
+                if (type != TYPE_CCE || che->coup.coupling_point == AFTER_IMDCT) {
+                    imdct_and_window(ac, &che->ch[0]);
+                    if (ac->oc[1].m4ac.object_type == AOT_AAC_LTP)
+                        ac->update_ltp(ac, &che->ch[0]);
+                    if (type == TYPE_CPE) {
+                        imdct_and_window(ac, &che->ch[1]);
+                        if (ac->oc[1].m4ac.object_type == AOT_AAC_LTP)
+                            ac->update_ltp(ac, &che->ch[1]);
+                    }
+                    if (ac->oc[1].m4ac.sbr > 0) {
+                        AAC_RENAME(ff_sbr_apply)(ac, &che->sbr, type, che->ch[0].ret, che->ch[1].ret);
+                    }
+                }
+                if (type <= TYPE_CCE)
+                    apply_channel_coupling(ac, che, type, i, AFTER_IMDCT, AAC_RENAME(apply_independent_coupling));
+
+#if USE_FIXED
+                {
+                    int j;
+                    /* preparation for resampler */
+                    for(j = 0; j<samples; j++){
+                        che->ch[0].ret[j] = (int32_t)av_clip64((int64_t)che->ch[0].ret[j]*128, INT32_MIN, INT32_MAX-0x8000)+0x8000;
+                        if(type == TYPE_CPE)
+                            che->ch[1].ret[j] = (int32_t)av_clip64((int64_t)che->ch[1].ret[j]*128, INT32_MIN, INT32_MAX-0x8000)+0x8000;
+                    }
+                }
+#endif /* USE_FIXED */
+                che->present = 0;
+            } else if (che) {
+                av_log(ac->avctx, AV_LOG_VERBOSE, "ChannelElement %d.%d missing \n", type, i);
+            }
+        }
+    }
+}
+
+static int parse_adts_frame_header(AACContext *ac, GetBitContext *gb)
+{
+    int size;
+    AACADTSHeaderInfo hdr_info;
+    uint8_t layout_map[MAX_ELEM_ID*4][3];
+    int layout_map_tags, ret;
+
+    size = ff_adts_header_parse(gb, &hdr_info);
+    if (size > 0) {
+        if (!ac->warned_num_aac_frames && hdr_info.num_aac_frames != 1) {
+            // This is 2 for "VLB " audio in NSV files.
+            // See samples/nsv/vlb_audio.
+            avpriv_report_missing_feature(ac->avctx,
+                                          "More than one AAC RDB per ADTS frame");
+            ac->warned_num_aac_frames = 1;
+        }
+        push_output_configuration(ac);
+        if (hdr_info.chan_config) {
+            ac->oc[1].m4ac.chan_config = hdr_info.chan_config;
+            if ((ret = set_default_channel_config(ac->avctx,
+                                                  layout_map,
+                                                  &layout_map_tags,
+                                                  hdr_info.chan_config)) < 0)
+                return ret;
+            if ((ret = output_configure(ac, layout_map, layout_map_tags,
+                                        FFMAX(ac->oc[1].status,
+                                              OC_TRIAL_FRAME), 0)) < 0)
+                return ret;
+        } else {
+            ac->oc[1].m4ac.chan_config = 0;
+            /**
+             * dual mono frames in Japanese DTV can have chan_config 0
+             * WITHOUT specifying PCE.
+             *  thus, set dual mono as default.
+             */
+            if (ac->dmono_mode && ac->oc[0].status == OC_NONE) {
+                layout_map_tags = 2;
+                layout_map[0][0] = layout_map[1][0] = TYPE_SCE;
+                layout_map[0][2] = layout_map[1][2] = AAC_CHANNEL_FRONT;
+                layout_map[0][1] = 0;
+                layout_map[1][1] = 1;
+                if (output_configure(ac, layout_map, layout_map_tags,
+                                     OC_TRIAL_FRAME, 0))
+                    return -7;
+            }
+        }
+        ac->oc[1].m4ac.sample_rate     = hdr_info.sample_rate;
+        ac->oc[1].m4ac.sampling_index  = hdr_info.sampling_index;
+        ac->oc[1].m4ac.object_type     = hdr_info.object_type;
+        ac->oc[1].m4ac.frame_length_short = 0;
+        if (ac->oc[0].status != OC_LOCKED ||
+            ac->oc[0].m4ac.chan_config != hdr_info.chan_config ||
+            ac->oc[0].m4ac.sample_rate != hdr_info.sample_rate) {
+            ac->oc[1].m4ac.sbr = -1;
+            ac->oc[1].m4ac.ps  = -1;
+        }
+        if (!hdr_info.crc_absent)
+            skip_bits(gb, 16);
+    }
+    return size;
+}
+
+static int aac_decode_er_frame(AVCodecContext *avctx, void *data,
+                               int *got_frame_ptr, GetBitContext *gb)
+{
+    AACContext *ac = avctx->priv_data;
+    const MPEG4AudioConfig *const m4ac = &ac->oc[1].m4ac;
+    ChannelElement *che;
+    int err, i;
+    int samples = m4ac->frame_length_short ? 960 : 1024;
+    int chan_config = m4ac->chan_config;
+    int aot = m4ac->object_type;
+
+    if (aot == AOT_ER_AAC_LD || aot == AOT_ER_AAC_ELD)
+        samples >>= 1;
+
+    ac->frame = data;
+
+    if ((err = frame_configure_elements(avctx)) < 0)
+        return err;
+
+    // The FF_PROFILE_AAC_* defines are all object_type - 1
+    // This may lead to an undefined profile being signaled
+    ac->avctx->profile = aot - 1;
+
+    ac->tags_mapped = 0;
+
+    if (chan_config < 0 || (chan_config >= 8 && chan_config < 11) || chan_config >= 13) {
+        avpriv_request_sample(avctx, "Unknown ER channel configuration %d",
+                              chan_config);
+        return AVERROR_INVALIDDATA;
+    }
+    for (i = 0; i < tags_per_config[chan_config]; i++) {
+        const int elem_type = aac_channel_layout_map[chan_config-1][i][0];
+        const int elem_id   = aac_channel_layout_map[chan_config-1][i][1];
+        if (!(che=get_che(ac, elem_type, elem_id))) {
+            av_log(ac->avctx, AV_LOG_ERROR,
+                   "channel element %d.%d is not allocated\n",
+                   elem_type, elem_id);
+            return AVERROR_INVALIDDATA;
+        }
+        che->present = 1;
+        if (aot != AOT_ER_AAC_ELD)
+            skip_bits(gb, 4);
+        switch (elem_type) {
+        case TYPE_SCE:
+            err = decode_ics(ac, &che->ch[0], gb, 0, 0);
+            break;
+        case TYPE_CPE:
+            err = decode_cpe(ac, gb, che);
+            break;
+        case TYPE_LFE:
+            err = decode_ics(ac, &che->ch[0], gb, 0, 0);
+            break;
+        }
+        if (err < 0)
+            return err;
+    }
+
+    spectral_to_sample(ac, samples);
+
+    if (!ac->frame->data[0] && samples) {
+        av_log(avctx, AV_LOG_ERROR, "no frame data found\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    ac->frame->nb_samples = samples;
+    ac->frame->sample_rate = avctx->sample_rate;
+    *got_frame_ptr = 1;
+
+    skip_bits_long(gb, get_bits_left(gb));
+    return 0;
+}
+
+static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
+                                int *got_frame_ptr, GetBitContext *gb, AVPacket *avpkt)
+{
+    AACContext *ac = avctx->priv_data;
+    ChannelElement *che = NULL, *che_prev = NULL;
+    enum RawDataBlockType elem_type, che_prev_type = TYPE_END;
+    int err, elem_id;
+    int samples = 0, multiplier, audio_found = 0, pce_found = 0;
+    int is_dmono, sce_count = 0;
+    int payload_alignment;
+    uint8_t che_presence[4][MAX_ELEM_ID] = {{0}};
+
+    ac->frame = data;
+
+    if (show_bits(gb, 12) == 0xfff) {
+        if ((err = parse_adts_frame_header(ac, gb)) < 0) {
+            av_log(avctx, AV_LOG_ERROR, "Error decoding AAC frame header.\n");
+            goto fail;
+        }
+        if (ac->oc[1].m4ac.sampling_index > 12) {
+            av_log(ac->avctx, AV_LOG_ERROR, "invalid sampling rate index %d\n", ac->oc[1].m4ac.sampling_index);
+            err = AVERROR_INVALIDDATA;
+            goto fail;
+        }
+    }
+
+    if ((err = frame_configure_elements(avctx)) < 0)
+        goto fail;
+
+    // The FF_PROFILE_AAC_* defines are all object_type - 1
+    // This may lead to an undefined profile being signaled
+    ac->avctx->profile = ac->oc[1].m4ac.object_type - 1;
+
+    payload_alignment = get_bits_count(gb);
+    ac->tags_mapped = 0;
+    // parse
+    while ((elem_type = get_bits(gb, 3)) != TYPE_END) {
+        elem_id = get_bits(gb, 4);
+
+        if (avctx->debug & FF_DEBUG_STARTCODE)
+            av_log(avctx, AV_LOG_DEBUG, "Elem type:%x id:%x\n", elem_type, elem_id);
+
+        if (!avctx->channels && elem_type != TYPE_PCE) {
+            err = AVERROR_INVALIDDATA;
+            goto fail;
+        }
+
+        if (elem_type < TYPE_DSE) {
+            if (che_presence[elem_type][elem_id]) {
+                int error = che_presence[elem_type][elem_id] > 1;
+                av_log(ac->avctx, error ? AV_LOG_ERROR : AV_LOG_DEBUG, "channel element %d.%d duplicate\n",
+                       elem_type, elem_id);
+                if (error) {
+                    err = AVERROR_INVALIDDATA;
+                    goto fail;
+                }
+            }
+            che_presence[elem_type][elem_id]++;
+
+            if (!(che=get_che(ac, elem_type, elem_id))) {
+                av_log(ac->avctx, AV_LOG_ERROR, "channel element %d.%d is not allocated\n",
+                       elem_type, elem_id);
+                err = AVERROR_INVALIDDATA;
+                goto fail;
+            }
+            samples = ac->oc[1].m4ac.frame_length_short ? 960 : 1024;
+            che->present = 1;
+        }
+
+        switch (elem_type) {
+
+        case TYPE_SCE:
+            err = decode_ics(ac, &che->ch[0], gb, 0, 0);
+            audio_found = 1;
+            sce_count++;
+            break;
+
+        case TYPE_CPE:
+            err = decode_cpe(ac, gb, che);
+            audio_found = 1;
+            break;
+
+        case TYPE_CCE:
+            err = decode_cce(ac, gb, che);
+            break;
+
+        case TYPE_LFE:
+            err = decode_ics(ac, &che->ch[0], gb, 0, 0);
+            audio_found = 1;
+            break;
+
+        case TYPE_DSE:
+            err = skip_data_stream_element(ac, gb);
+            break;
+
+        case TYPE_PCE: {
+            uint8_t layout_map[MAX_ELEM_ID*4][3];
+            int tags;
+
+            int pushed = push_output_configuration(ac);
+            if (pce_found && !pushed) {
+                err = AVERROR_INVALIDDATA;
+                goto fail;
+            }
+
+            tags = decode_pce(avctx, &ac->oc[1].m4ac, layout_map, gb,
+                              payload_alignment);
+            if (tags < 0) {
+                err = tags;
+                break;
+            }
+            if (pce_found) {
+                av_log(avctx, AV_LOG_ERROR,
+                       "Not evaluating a further program_config_element as this construct is dubious at best.\n");
+                pop_output_configuration(ac);
+            } else {
+                err = output_configure(ac, layout_map, tags, OC_TRIAL_PCE, 1);
+                if (!err)
+                    ac->oc[1].m4ac.chan_config = 0;
+                pce_found = 1;
+            }
+            break;
+        }
+
+        case TYPE_FIL:
+            if (elem_id == 15)
+                elem_id += get_bits(gb, 8) - 1;
+            if (get_bits_left(gb) < 8 * elem_id) {
+                    av_log(avctx, AV_LOG_ERROR, "TYPE_FIL: "overread_err);
+                    err = AVERROR_INVALIDDATA;
+                    goto fail;
+            }
+            while (elem_id > 0)
+                elem_id -= decode_extension_payload(ac, gb, elem_id, che_prev, che_prev_type);
+            err = 0; /* FIXME */
+            break;
+
+        default:
+            err = AVERROR_BUG; /* should not happen, but keeps compiler happy */
+            break;
+        }
+
+        if (elem_type < TYPE_DSE) {
+            che_prev      = che;
+            che_prev_type = elem_type;
+        }
+
+        if (err)
+            goto fail;
+
+        if (get_bits_left(gb) < 3) {
+            av_log(avctx, AV_LOG_ERROR, overread_err);
+            err = AVERROR_INVALIDDATA;
+            goto fail;
+        }
+    }
+
+    if (!avctx->channels) {
+        *got_frame_ptr = 0;
+        return 0;
+    }
+
+    multiplier = (ac->oc[1].m4ac.sbr == 1) ? ac->oc[1].m4ac.ext_sample_rate > ac->oc[1].m4ac.sample_rate : 0;
+    samples <<= multiplier;
+
+    spectral_to_sample(ac, samples);
+
+    if (ac->oc[1].status && audio_found) {
+        avctx->sample_rate = ac->oc[1].m4ac.sample_rate << multiplier;
+        avctx->frame_size = samples;
+        ac->oc[1].status = OC_LOCKED;
+    }
+
+    if (multiplier)
+        avctx->internal->skip_samples_multiplier = 2;
+
+    if (!ac->frame->data[0] && samples) {
+        av_log(avctx, AV_LOG_ERROR, "no frame data found\n");
+        err = AVERROR_INVALIDDATA;
+        goto fail;
+    }
+
+    if (samples) {
+        ac->frame->nb_samples = samples;
+        ac->frame->sample_rate = avctx->sample_rate;
+    } else
+        av_frame_unref(ac->frame);
+    *got_frame_ptr = !!samples;
+
+    /* for dual-mono audio (SCE + SCE) */
+    is_dmono = ac->dmono_mode && sce_count == 2 &&
+               ac->oc[1].channel_layout == (AV_CH_FRONT_LEFT | AV_CH_FRONT_RIGHT);
+    if (is_dmono) {
+        if (ac->dmono_mode == 1)
+            ((AVFrame *)data)->data[1] =((AVFrame *)data)->data[0];
+        else if (ac->dmono_mode == 2)
+            ((AVFrame *)data)->data[0] =((AVFrame *)data)->data[1];
+    }
+
+    return 0;
+fail:
+    pop_output_configuration(ac);
+    return err;
+}
+
+static int aac_decode_frame(AVCodecContext *avctx, void *data,
+                            int *got_frame_ptr, AVPacket *avpkt)
+{
+    AACContext *ac = avctx->priv_data;
+    const uint8_t *buf = avpkt->data;
+    int buf_size = avpkt->size;
+    GetBitContext gb;
+    int buf_consumed;
+    int buf_offset;
+    int err;
+    int new_extradata_size;
+    const uint8_t *new_extradata = av_packet_get_side_data(avpkt,
+                                       AV_PKT_DATA_NEW_EXTRADATA,
+                                       &new_extradata_size);
+    int jp_dualmono_size;
+    const uint8_t *jp_dualmono   = av_packet_get_side_data(avpkt,
+                                       AV_PKT_DATA_JP_DUALMONO,
+                                       &jp_dualmono_size);
+
+    if (new_extradata) {
+        /* discard previous configuration */
+        ac->oc[1].status = OC_NONE;
+        err = decode_audio_specific_config(ac, ac->avctx, &ac->oc[1].m4ac,
+                                           new_extradata,
+                                           new_extradata_size * 8LL, 1);
+        if (err < 0) {
+            return err;
+        }
+    }
+
+    ac->dmono_mode = 0;
+    if (jp_dualmono && jp_dualmono_size > 0)
+        ac->dmono_mode =  1 + *jp_dualmono;
+    if (ac->force_dmono_mode >= 0)
+        ac->dmono_mode = ac->force_dmono_mode;
+
+    if (INT_MAX / 8 <= buf_size)
+        return AVERROR_INVALIDDATA;
+
+    if ((err = init_get_bits8(&gb, buf, buf_size)) < 0)
+        return err;
+
+    switch (ac->oc[1].m4ac.object_type) {
+    case AOT_ER_AAC_LC:
+    case AOT_ER_AAC_LTP:
+    case AOT_ER_AAC_LD:
+    case AOT_ER_AAC_ELD:
+        err = aac_decode_er_frame(avctx, data, got_frame_ptr, &gb);
+        break;
+    default:
+        err = aac_decode_frame_int(avctx, data, got_frame_ptr, &gb, avpkt);
+    }
+    if (err < 0)
+        return err;
+
+    buf_consumed = (get_bits_count(&gb) + 7) >> 3;
+    for (buf_offset = buf_consumed; buf_offset < buf_size; buf_offset++)
+        if (buf[buf_offset])
+            break;
+
+    return buf_size > buf_offset ? buf_consumed : buf_size;
+}
+
+static av_cold int aac_decode_close(AVCodecContext *avctx)
+{
+    AACContext *ac = avctx->priv_data;
+    int i, type;
+
+    for (i = 0; i < MAX_ELEM_ID; i++) {
+        for (type = 0; type < 4; type++) {
+            if (ac->che[type][i])
+                AAC_RENAME(ff_aac_sbr_ctx_close)(&ac->che[type][i]->sbr);
+            av_freep(&ac->che[type][i]);
+        }
+    }
+
+    ff_mdct_end(&ac->mdct);
+    ff_mdct_end(&ac->mdct_small);
+    ff_mdct_end(&ac->mdct_ld);
+    ff_mdct_end(&ac->mdct_ltp);
+#if !USE_FIXED
+    ff_mdct15_uninit(&ac->mdct120);
+    ff_mdct15_uninit(&ac->mdct480);
+    ff_mdct15_uninit(&ac->mdct960);
+#endif
+    av_freep(&ac->fdsp);
+    return 0;
+}
+
+static void aacdec_init(AACContext *c)
+{
+    c->imdct_and_windowing                      = imdct_and_windowing;
+    c->apply_ltp                                = apply_ltp;
+    c->apply_tns                                = apply_tns;
+    c->windowing_and_mdct_ltp                   = windowing_and_mdct_ltp;
+    c->update_ltp                               = update_ltp;
+#if USE_FIXED
+    c->vector_pow43                             = vector_pow43;
+    c->subband_scale                            = subband_scale;
+#endif
+
+#if !USE_FIXED
+    if(ARCH_MIPS)
+        ff_aacdec_init_mips(c);
+#endif /* !USE_FIXED */
+}
+/**
+ * AVOptions for Japanese DTV specific extensions (ADTS only)
+ */
+#define AACDEC_FLAGS AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM
+static const AVOption options[] = {
+    {"dual_mono_mode", "Select the channel to decode for dual mono",
+     offsetof(AACContext, force_dmono_mode), AV_OPT_TYPE_INT, {.i64=-1}, -1, 2,
+     AACDEC_FLAGS, "dual_mono_mode"},
+
+    {"auto", "autoselection",            0, AV_OPT_TYPE_CONST, {.i64=-1}, INT_MIN, INT_MAX, AACDEC_FLAGS, "dual_mono_mode"},
+    {"main", "Select Main/Left channel", 0, AV_OPT_TYPE_CONST, {.i64= 1}, INT_MIN, INT_MAX, AACDEC_FLAGS, "dual_mono_mode"},
+    {"sub" , "Select Sub/Right channel", 0, AV_OPT_TYPE_CONST, {.i64= 2}, INT_MIN, INT_MAX, AACDEC_FLAGS, "dual_mono_mode"},
+    {"both", "Select both channels",     0, AV_OPT_TYPE_CONST, {.i64= 0}, INT_MIN, INT_MAX, AACDEC_FLAGS, "dual_mono_mode"},
+
+    {NULL},
+};
+
+static const AVClass aac_decoder_class = {
+    .class_name = "AAC decoder",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacdectab.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacdectab.h
new file mode 100644
index 000000000..baf51a74b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacdectab.h
@@ -0,0 +1,74 @@
+/*
+ * AAC decoder data
+ * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
+ * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC decoder data
+ * @author Oded Shimon  ( ods15 ods15 dyndns org )
+ * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
+ */
+
+#ifndef AVCODEC_AACDECTAB_H
+#define AVCODEC_AACDECTAB_H
+
+#include "libavutil/channel_layout.h"
+#include "aac.h"
+
+#include <stdint.h>
+
+static const int8_t tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 4, 5, 0, 5, 0 };
+
+static const uint8_t aac_channel_layout_map[16][5][3] = {
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, },
+    { { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_FRONT }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
+    { { 0, } },
+    { { 0, } },
+    { { 0, } },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_SIDE }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
+    { { 0, } },
+    /* TODO: Add 7+1 TOP configuration */
+};
+
+static const uint64_t aac_channel_layout[16] = {
+    AV_CH_LAYOUT_MONO,
+    AV_CH_LAYOUT_STEREO,
+    AV_CH_LAYOUT_SURROUND,
+    AV_CH_LAYOUT_4POINT0,
+    AV_CH_LAYOUT_5POINT0_BACK,
+    AV_CH_LAYOUT_5POINT1_BACK,
+    AV_CH_LAYOUT_7POINT1_WIDE_BACK,
+    0,
+    0,
+    0,
+    AV_CH_LAYOUT_6POINT1,
+    AV_CH_LAYOUT_7POINT1,
+    0,
+    /* AV_CH_LAYOUT_7POINT1_TOP, */
+};
+
+#endif /* AVCODEC_AACDECTAB_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc.c
new file mode 100644
index 000000000..4d0abb107
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc.c
@@ -0,0 +1,1165 @@
+/*
+ * AAC encoder
+ * Copyright (C) 2008 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder
+ */
+
+/***********************************
+ *              TODOs:
+ * add sane pulse detection
+ ***********************************/
+
+#include "libavutil/libm.h"
+#include "libavutil/thread.h"
+#include "libavutil/float_dsp.h"
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "put_bits.h"
+#include "internal.h"
+#include "mpeg4audio.h"
+#include "kbdwin.h"
+#include "sinewin.h"
+
+#include "aac.h"
+#include "aactab.h"
+#include "aacenc.h"
+#include "aacenctab.h"
+#include "aacenc_utils.h"
+
+#include "psymodel.h"
+
+static AVOnce aac_table_init = AV_ONCE_INIT;
+
+static void put_pce(PutBitContext *pb, AVCodecContext *avctx)
+{
+    int i, j;
+    AACEncContext *s = avctx->priv_data;
+    AACPCEInfo *pce = &s->pce;
+    const int bitexact = avctx->flags & AV_CODEC_FLAG_BITEXACT;
+    const char *aux_data = bitexact ? "Lavc" : LIBAVCODEC_IDENT;
+
+    put_bits(pb, 4, 0);
+
+    put_bits(pb, 2, avctx->profile);
+    put_bits(pb, 4, s->samplerate_index);
+
+    put_bits(pb, 4, pce->num_ele[0]); /* Front */
+    put_bits(pb, 4, pce->num_ele[1]); /* Side */
+    put_bits(pb, 4, pce->num_ele[2]); /* Back */
+    put_bits(pb, 2, pce->num_ele[3]); /* LFE */
+    put_bits(pb, 3, 0); /* Assoc data */
+    put_bits(pb, 4, 0); /* CCs */
+
+    put_bits(pb, 1, 0); /* Stereo mixdown */
+    put_bits(pb, 1, 0); /* Mono mixdown */
+    put_bits(pb, 1, 0); /* Something else */
+
+    for (i = 0; i < 4; i++) {
+        for (j = 0; j < pce->num_ele[i]; j++) {
+            if (i < 3)
+                put_bits(pb, 1, pce->pairing[i][j]);
+            put_bits(pb, 4, pce->index[i][j]);
+        }
+    }
+
+    avpriv_align_put_bits(pb);
+    put_bits(pb, 8, strlen(aux_data));
+    avpriv_put_string(pb, aux_data, 0);
+}
+
+/**
+ * Make AAC audio config object.
+ * @see 1.6.2.1 "Syntax - AudioSpecificConfig"
+ */
+static int put_audio_specific_config(AVCodecContext *avctx)
+{
+    PutBitContext pb;
+    AACEncContext *s = avctx->priv_data;
+    int channels = (!s->needs_pce)*(s->channels - (s->channels == 8 ? 1 : 0));
+    const int max_size = 32;
+
+    avctx->extradata = av_mallocz(max_size);
+    if (!avctx->extradata)
+        return AVERROR(ENOMEM);
+
+    init_put_bits(&pb, avctx->extradata, max_size);
+    put_bits(&pb, 5, s->profile+1); //profile
+    put_bits(&pb, 4, s->samplerate_index); //sample rate index
+    put_bits(&pb, 4, channels);
+    //GASpecificConfig
+    put_bits(&pb, 1, 0); //frame length - 1024 samples
+    put_bits(&pb, 1, 0); //does not depend on core coder
+    put_bits(&pb, 1, 0); //is not extension
+    if (s->needs_pce)
+        put_pce(&pb, avctx);
+
+    //Explicitly Mark SBR absent
+    put_bits(&pb, 11, 0x2b7); //sync extension
+    put_bits(&pb, 5,  AOT_SBR);
+    put_bits(&pb, 1,  0);
+    flush_put_bits(&pb);
+    avctx->extradata_size = put_bits_count(&pb) >> 3;
+
+    return 0;
+}
+
+void ff_quantize_band_cost_cache_init(struct AACEncContext *s)
+{
+    ++s->quantize_band_cost_cache_generation;
+    if (s->quantize_band_cost_cache_generation == 0) {
+        memset(s->quantize_band_cost_cache, 0, sizeof(s->quantize_band_cost_cache));
+        s->quantize_band_cost_cache_generation = 1;
+    }
+}
+
+#define WINDOW_FUNC(type) \
+static void apply_ ##type ##_window(AVFloatDSPContext *fdsp, \
+                                    SingleChannelElement *sce, \
+                                    const float *audio)
+
+WINDOW_FUNC(only_long)
+{
+    const float *lwindow = sce->ics.use_kb_window[0] ? ff_aac_kbd_long_1024 : ff_sine_1024;
+    const float *pwindow = sce->ics.use_kb_window[1] ? ff_aac_kbd_long_1024 : ff_sine_1024;
+    float *out = sce->ret_buf;
+
+    fdsp->vector_fmul        (out,        audio,        lwindow, 1024);
+    fdsp->vector_fmul_reverse(out + 1024, audio + 1024, pwindow, 1024);
+}
+
+WINDOW_FUNC(long_start)
+{
+    const float *lwindow = sce->ics.use_kb_window[1] ? ff_aac_kbd_long_1024 : ff_sine_1024;
+    const float *swindow = sce->ics.use_kb_window[0] ? ff_aac_kbd_short_128 : ff_sine_128;
+    float *out = sce->ret_buf;
+
+    fdsp->vector_fmul(out, audio, lwindow, 1024);
+    memcpy(out + 1024, audio + 1024, sizeof(out[0]) * 448);
+    fdsp->vector_fmul_reverse(out + 1024 + 448, audio + 1024 + 448, swindow, 128);
+    memset(out + 1024 + 576, 0, sizeof(out[0]) * 448);
+}
+
+WINDOW_FUNC(long_stop)
+{
+    const float *lwindow = sce->ics.use_kb_window[0] ? ff_aac_kbd_long_1024 : ff_sine_1024;
+    const float *swindow = sce->ics.use_kb_window[1] ? ff_aac_kbd_short_128 : ff_sine_128;
+    float *out = sce->ret_buf;
+
+    memset(out, 0, sizeof(out[0]) * 448);
+    fdsp->vector_fmul(out + 448, audio + 448, swindow, 128);
+    memcpy(out + 576, audio + 576, sizeof(out[0]) * 448);
+    fdsp->vector_fmul_reverse(out + 1024, audio + 1024, lwindow, 1024);
+}
+
+WINDOW_FUNC(eight_short)
+{
+    const float *swindow = sce->ics.use_kb_window[0] ? ff_aac_kbd_short_128 : ff_sine_128;
+    const float *pwindow = sce->ics.use_kb_window[1] ? ff_aac_kbd_short_128 : ff_sine_128;
+    const float *in = audio + 448;
+    float *out = sce->ret_buf;
+    int w;
+
+    for (w = 0; w < 8; w++) {
+        fdsp->vector_fmul        (out, in, w ? pwindow : swindow, 128);
+        out += 128;
+        in  += 128;
+        fdsp->vector_fmul_reverse(out, in, swindow, 128);
+        out += 128;
+    }
+}
+
+static void (*const apply_window[4])(AVFloatDSPContext *fdsp,
+                                     SingleChannelElement *sce,
+                                     const float *audio) = {
+    [ONLY_LONG_SEQUENCE]   = apply_only_long_window,
+    [LONG_START_SEQUENCE]  = apply_long_start_window,
+    [EIGHT_SHORT_SEQUENCE] = apply_eight_short_window,
+    [LONG_STOP_SEQUENCE]   = apply_long_stop_window
+};
+
+static void apply_window_and_mdct(AACEncContext *s, SingleChannelElement *sce,
+                                  float *audio)
+{
+    int i;
+    const float *output = sce->ret_buf;
+
+    apply_window[sce->ics.window_sequence[0]](s->fdsp, sce, audio);
+
+    if (sce->ics.window_sequence[0] != EIGHT_SHORT_SEQUENCE)
+        s->mdct1024.mdct_calc(&s->mdct1024, sce->coeffs, output);
+    else
+        for (i = 0; i < 1024; i += 128)
+            s->mdct128.mdct_calc(&s->mdct128, &sce->coeffs[i], output + i*2);
+    memcpy(audio, audio + 1024, sizeof(audio[0]) * 1024);
+    memcpy(sce->pcoeffs, sce->coeffs, sizeof(sce->pcoeffs));
+}
+
+/**
+ * Encode ics_info element.
+ * @see Table 4.6 (syntax of ics_info)
+ */
+static void put_ics_info(AACEncContext *s, IndividualChannelStream *info)
+{
+    int w;
+
+    put_bits(&s->pb, 1, 0);                // ics_reserved bit
+    put_bits(&s->pb, 2, info->window_sequence[0]);
+    put_bits(&s->pb, 1, info->use_kb_window[0]);
+    if (info->window_sequence[0] != EIGHT_SHORT_SEQUENCE) {
+        put_bits(&s->pb, 6, info->max_sfb);
+        put_bits(&s->pb, 1, !!info->predictor_present);
+    } else {
+        put_bits(&s->pb, 4, info->max_sfb);
+        for (w = 1; w < 8; w++)
+            put_bits(&s->pb, 1, !info->group_len[w]);
+    }
+}
+
+/**
+ * Encode MS data.
+ * @see 4.6.8.1 "Joint Coding - M/S Stereo"
+ */
+static void encode_ms_info(PutBitContext *pb, ChannelElement *cpe)
+{
+    int i, w;
+
+    put_bits(pb, 2, cpe->ms_mode);
+    if (cpe->ms_mode == 1)
+        for (w = 0; w < cpe->ch[0].ics.num_windows; w += cpe->ch[0].ics.group_len[w])
+            for (i = 0; i < cpe->ch[0].ics.max_sfb; i++)
+                put_bits(pb, 1, cpe->ms_mask[w*16 + i]);
+}
+
+/**
+ * Produce integer coefficients from scalefactors provided by the model.
+ */
+static void adjust_frame_information(ChannelElement *cpe, int chans)
+{
+    int i, w, w2, g, ch;
+    int maxsfb, cmaxsfb;
+
+    for (ch = 0; ch < chans; ch++) {
+        IndividualChannelStream *ics = &cpe->ch[ch].ics;
+        maxsfb = 0;
+        cpe->ch[ch].pulse.num_pulse = 0;
+        for (w = 0; w < ics->num_windows; w += ics->group_len[w]) {
+            for (w2 =  0; w2 < ics->group_len[w]; w2++) {
+                for (cmaxsfb = ics->num_swb; cmaxsfb > 0 && cpe->ch[ch].zeroes[w*16+cmaxsfb-1]; cmaxsfb--)
+                    ;
+                maxsfb = FFMAX(maxsfb, cmaxsfb);
+            }
+        }
+        ics->max_sfb = maxsfb;
+
+        //adjust zero bands for window groups
+        for (w = 0; w < ics->num_windows; w += ics->group_len[w]) {
+            for (g = 0; g < ics->max_sfb; g++) {
+                i = 1;
+                for (w2 = w; w2 < w + ics->group_len[w]; w2++) {
+                    if (!cpe->ch[ch].zeroes[w2*16 + g]) {
+                        i = 0;
+                        break;
+                    }
+                }
+                cpe->ch[ch].zeroes[w*16 + g] = i;
+            }
+        }
+    }
+
+    if (chans > 1 && cpe->common_window) {
+        IndividualChannelStream *ics0 = &cpe->ch[0].ics;
+        IndividualChannelStream *ics1 = &cpe->ch[1].ics;
+        int msc = 0;
+        ics0->max_sfb = FFMAX(ics0->max_sfb, ics1->max_sfb);
+        ics1->max_sfb = ics0->max_sfb;
+        for (w = 0; w < ics0->num_windows*16; w += 16)
+            for (i = 0; i < ics0->max_sfb; i++)
+                if (cpe->ms_mask[w+i])
+                    msc++;
+        if (msc == 0 || ics0->max_sfb == 0)
+            cpe->ms_mode = 0;
+        else
+            cpe->ms_mode = msc < ics0->max_sfb * ics0->num_windows ? 1 : 2;
+    }
+}
+
+static void apply_intensity_stereo(ChannelElement *cpe)
+{
+    int w, w2, g, i;
+    IndividualChannelStream *ics = &cpe->ch[0].ics;
+    if (!cpe->common_window)
+        return;
+    for (w = 0; w < ics->num_windows; w += ics->group_len[w]) {
+        for (w2 =  0; w2 < ics->group_len[w]; w2++) {
+            int start = (w+w2) * 128;
+            for (g = 0; g < ics->num_swb; g++) {
+                int p  = -1 + 2 * (cpe->ch[1].band_type[w*16+g] - 14);
+                float scale = cpe->ch[0].is_ener[w*16+g];
+                if (!cpe->is_mask[w*16 + g]) {
+                    start += ics->swb_sizes[g];
+                    continue;
+                }
+                if (cpe->ms_mask[w*16 + g])
+                    p *= -1;
+                for (i = 0; i < ics->swb_sizes[g]; i++) {
+                    float sum = (cpe->ch[0].coeffs[start+i] + p*cpe->ch[1].coeffs[start+i])*scale;
+                    cpe->ch[0].coeffs[start+i] = sum;
+                    cpe->ch[1].coeffs[start+i] = 0.0f;
+                }
+                start += ics->swb_sizes[g];
+            }
+        }
+    }
+}
+
+static void apply_mid_side_stereo(ChannelElement *cpe)
+{
+    int w, w2, g, i;
+    IndividualChannelStream *ics = &cpe->ch[0].ics;
+    if (!cpe->common_window)
+        return;
+    for (w = 0; w < ics->num_windows; w += ics->group_len[w]) {
+        for (w2 =  0; w2 < ics->group_len[w]; w2++) {
+            int start = (w+w2) * 128;
+            for (g = 0; g < ics->num_swb; g++) {
+                /* ms_mask can be used for other purposes in PNS and I/S,
+                 * so must not apply M/S if any band uses either, even if
+                 * ms_mask is set.
+                 */
+                if (!cpe->ms_mask[w*16 + g] || cpe->is_mask[w*16 + g]
+                    || cpe->ch[0].band_type[w*16 + g] >= NOISE_BT
+                    || cpe->ch[1].band_type[w*16 + g] >= NOISE_BT) {
+                    start += ics->swb_sizes[g];
+                    continue;
+                }
+                for (i = 0; i < ics->swb_sizes[g]; i++) {
+                    float L = (cpe->ch[0].coeffs[start+i] + cpe->ch[1].coeffs[start+i]) * 0.5f;
+                    float R = L - cpe->ch[1].coeffs[start+i];
+                    cpe->ch[0].coeffs[start+i] = L;
+                    cpe->ch[1].coeffs[start+i] = R;
+                }
+                start += ics->swb_sizes[g];
+            }
+        }
+    }
+}
+
+/**
+ * Encode scalefactor band coding type.
+ */
+static void encode_band_info(AACEncContext *s, SingleChannelElement *sce)
+{
+    int w;
+
+    if (s->coder->set_special_band_scalefactors)
+        s->coder->set_special_band_scalefactors(s, sce);
+
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w])
+        s->coder->encode_window_bands_info(s, sce, w, sce->ics.group_len[w], s->lambda);
+}
+
+/**
+ * Encode scalefactors.
+ */
+static void encode_scale_factors(AVCodecContext *avctx, AACEncContext *s,
+                                 SingleChannelElement *sce)
+{
+    int diff, off_sf = sce->sf_idx[0], off_pns = sce->sf_idx[0] - NOISE_OFFSET;
+    int off_is = 0, noise_flag = 1;
+    int i, w;
+
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        for (i = 0; i < sce->ics.max_sfb; i++) {
+            if (!sce->zeroes[w*16 + i]) {
+                if (sce->band_type[w*16 + i] == NOISE_BT) {
+                    diff = sce->sf_idx[w*16 + i] - off_pns;
+                    off_pns = sce->sf_idx[w*16 + i];
+                    if (noise_flag-- > 0) {
+                        put_bits(&s->pb, NOISE_PRE_BITS, diff + NOISE_PRE);
+                        continue;
+                    }
+                } else if (sce->band_type[w*16 + i] == INTENSITY_BT  ||
+                           sce->band_type[w*16 + i] == INTENSITY_BT2) {
+                    diff = sce->sf_idx[w*16 + i] - off_is;
+                    off_is = sce->sf_idx[w*16 + i];
+                } else {
+                    diff = sce->sf_idx[w*16 + i] - off_sf;
+                    off_sf = sce->sf_idx[w*16 + i];
+                }
+                diff += SCALE_DIFF_ZERO;
+                av_assert0(diff >= 0 && diff <= 120);
+                put_bits(&s->pb, ff_aac_scalefactor_bits[diff], ff_aac_scalefactor_code[diff]);
+            }
+        }
+    }
+}
+
+/**
+ * Encode pulse data.
+ */
+static void encode_pulses(AACEncContext *s, Pulse *pulse)
+{
+    int i;
+
+    put_bits(&s->pb, 1, !!pulse->num_pulse);
+    if (!pulse->num_pulse)
+        return;
+
+    put_bits(&s->pb, 2, pulse->num_pulse - 1);
+    put_bits(&s->pb, 6, pulse->start);
+    for (i = 0; i < pulse->num_pulse; i++) {
+        put_bits(&s->pb, 5, pulse->pos[i]);
+        put_bits(&s->pb, 4, pulse->amp[i]);
+    }
+}
+
+/**
+ * Encode spectral coefficients processed by psychoacoustic model.
+ */
+static void encode_spectral_coeffs(AACEncContext *s, SingleChannelElement *sce)
+{
+    int start, i, w, w2;
+
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        start = 0;
+        for (i = 0; i < sce->ics.max_sfb; i++) {
+            if (sce->zeroes[w*16 + i]) {
+                start += sce->ics.swb_sizes[i];
+                continue;
+            }
+            for (w2 = w; w2 < w + sce->ics.group_len[w]; w2++) {
+                s->coder->quantize_and_encode_band(s, &s->pb,
+                                                   &sce->coeffs[start + w2*128],
+                                                   NULL, sce->ics.swb_sizes[i],
+                                                   sce->sf_idx[w*16 + i],
+                                                   sce->band_type[w*16 + i],
+                                                   s->lambda,
+                                                   sce->ics.window_clipping[w]);
+            }
+            start += sce->ics.swb_sizes[i];
+        }
+    }
+}
+
+/**
+ * Downscale spectral coefficients for near-clipping windows to avoid artifacts
+ */
+static void avoid_clipping(AACEncContext *s, SingleChannelElement *sce)
+{
+    int start, i, j, w;
+
+    if (sce->ics.clip_avoidance_factor < 1.0f) {
+        for (w = 0; w < sce->ics.num_windows; w++) {
+            start = 0;
+            for (i = 0; i < sce->ics.max_sfb; i++) {
+                float *swb_coeffs = &sce->coeffs[start + w*128];
+                for (j = 0; j < sce->ics.swb_sizes[i]; j++)
+                    swb_coeffs[j] *= sce->ics.clip_avoidance_factor;
+                start += sce->ics.swb_sizes[i];
+            }
+        }
+    }
+}
+
+/**
+ * Encode one channel of audio data.
+ */
+static int encode_individual_channel(AVCodecContext *avctx, AACEncContext *s,
+                                     SingleChannelElement *sce,
+                                     int common_window)
+{
+    put_bits(&s->pb, 8, sce->sf_idx[0]);
+    if (!common_window) {
+        put_ics_info(s, &sce->ics);
+        if (s->coder->encode_main_pred)
+            s->coder->encode_main_pred(s, sce);
+        if (s->coder->encode_ltp_info)
+            s->coder->encode_ltp_info(s, sce, 0);
+    }
+    encode_band_info(s, sce);
+    encode_scale_factors(avctx, s, sce);
+    encode_pulses(s, &sce->pulse);
+    put_bits(&s->pb, 1, !!sce->tns.present);
+    if (s->coder->encode_tns_info)
+        s->coder->encode_tns_info(s, sce);
+    put_bits(&s->pb, 1, 0); //ssr
+    encode_spectral_coeffs(s, sce);
+    return 0;
+}
+
+/**
+ * Write some auxiliary information about the created AAC file.
+ */
+static void put_bitstream_info(AACEncContext *s, const char *name)
+{
+    int i, namelen, padbits;
+
+    namelen = strlen(name) + 2;
+    put_bits(&s->pb, 3, TYPE_FIL);
+    put_bits(&s->pb, 4, FFMIN(namelen, 15));
+    if (namelen >= 15)
+        put_bits(&s->pb, 8, namelen - 14);
+    put_bits(&s->pb, 4, 0); //extension type - filler
+    padbits = -put_bits_count(&s->pb) & 7;
+    avpriv_align_put_bits(&s->pb);
+    for (i = 0; i < namelen - 2; i++)
+        put_bits(&s->pb, 8, name[i]);
+    put_bits(&s->pb, 12 - padbits, 0);
+}
+
+/*
+ * Copy input samples.
+ * Channels are reordered from libavcodec's default order to AAC order.
+ */
+static void copy_input_samples(AACEncContext *s, const AVFrame *frame)
+{
+    int ch;
+    int end = 2048 + (frame ? frame->nb_samples : 0);
+    const uint8_t *channel_map = s->reorder_map;
+
+    /* copy and remap input samples */
+    for (ch = 0; ch < s->channels; ch++) {
+        /* copy last 1024 samples of previous frame to the start of the current frame */
+        memcpy(&s->planar_samples[ch][1024], &s->planar_samples[ch][2048], 1024 * sizeof(s->planar_samples[0][0]));
+
+        /* copy new samples and zero any remaining samples */
+        if (frame) {
+            memcpy(&s->planar_samples[ch][2048],
+                   frame->extended_data[channel_map[ch]],
+                   frame->nb_samples * sizeof(s->planar_samples[0][0]));
+        }
+        memset(&s->planar_samples[ch][end], 0,
+               (3072 - end) * sizeof(s->planar_samples[0][0]));
+    }
+}
+
+static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
+                            const AVFrame *frame, int *got_packet_ptr)
+{
+    AACEncContext *s = avctx->priv_data;
+    float **samples = s->planar_samples, *samples2, *la, *overlap;
+    ChannelElement *cpe;
+    SingleChannelElement *sce;
+    IndividualChannelStream *ics;
+    int i, its, ch, w, chans, tag, start_ch, ret, frame_bits;
+    int target_bits, rate_bits, too_many_bits, too_few_bits;
+    int ms_mode = 0, is_mode = 0, tns_mode = 0, pred_mode = 0;
+    int chan_el_counter[4];
+    FFPsyWindowInfo windows[AAC_MAX_CHANNELS];
+
+    /* add current frame to queue */
+    if (frame) {
+        if ((ret = ff_af_queue_add(&s->afq, frame)) < 0)
+            return ret;
+    } else {
+        if (!s->afq.remaining_samples || (!s->afq.frame_alloc && !s->afq.frame_count))
+            return 0;
+    }
+
+    copy_input_samples(s, frame);
+    if (s->psypp)
+        ff_psy_preprocess(s->psypp, s->planar_samples, s->channels);
+
+    if (!avctx->frame_number)
+        return 0;
+
+    start_ch = 0;
+    for (i = 0; i < s->chan_map[0]; i++) {
+        FFPsyWindowInfo* wi = windows + start_ch;
+        tag      = s->chan_map[i+1];
+        chans    = tag == TYPE_CPE ? 2 : 1;
+        cpe      = &s->cpe[i];
+        for (ch = 0; ch < chans; ch++) {
+            int k;
+            float clip_avoidance_factor;
+            sce = &cpe->ch[ch];
+            ics = &sce->ics;
+            s->cur_channel = start_ch + ch;
+            overlap  = &samples[s->cur_channel][0];
+            samples2 = overlap + 1024;
+            la       = samples2 + (448+64);
+            if (!frame)
+                la = NULL;
+            if (tag == TYPE_LFE) {
+                wi[ch].window_type[0] = wi[ch].window_type[1] = ONLY_LONG_SEQUENCE;
+                wi[ch].window_shape   = 0;
+                wi[ch].num_windows    = 1;
+                wi[ch].grouping[0]    = 1;
+                wi[ch].clipping[0]    = 0;
+
+                /* Only the lowest 12 coefficients are used in a LFE channel.
+                 * The expression below results in only the bottom 8 coefficients
+                 * being used for 11.025kHz to 16kHz sample rates.
+                 */
+                ics->num_swb = s->samplerate_index >= 8 ? 1 : 3;
+            } else {
+                wi[ch] = s->psy.model->window(&s->psy, samples2, la, s->cur_channel,
+                                              ics->window_sequence[0]);
+            }
+            ics->window_sequence[1] = ics->window_sequence[0];
+            ics->window_sequence[0] = wi[ch].window_type[0];
+            ics->use_kb_window[1]   = ics->use_kb_window[0];
+            ics->use_kb_window[0]   = wi[ch].window_shape;
+            ics->num_windows        = wi[ch].num_windows;
+            ics->swb_sizes          = s->psy.bands    [ics->num_windows == 8];
+            ics->num_swb            = tag == TYPE_LFE ? ics->num_swb : s->psy.num_bands[ics->num_windows == 8];
+            ics->max_sfb            = FFMIN(ics->max_sfb, ics->num_swb);
+            ics->swb_offset         = wi[ch].window_type[0] == EIGHT_SHORT_SEQUENCE ?
+                                        ff_swb_offset_128 [s->samplerate_index]:
+                                        ff_swb_offset_1024[s->samplerate_index];
+            ics->tns_max_bands      = wi[ch].window_type[0] == EIGHT_SHORT_SEQUENCE ?
+                                        ff_tns_max_bands_128 [s->samplerate_index]:
+                                        ff_tns_max_bands_1024[s->samplerate_index];
+
+            for (w = 0; w < ics->num_windows; w++)
+                ics->group_len[w] = wi[ch].grouping[w];
+
+            /* Calculate input sample maximums and evaluate clipping risk */
+            clip_avoidance_factor = 0.0f;
+            for (w = 0; w < ics->num_windows; w++) {
+                const float *wbuf = overlap + w * 128;
+                const int wlen = 2048 / ics->num_windows;
+                float max = 0;
+                int j;
+                /* mdct input is 2 * output */
+                for (j = 0; j < wlen; j++)
+                    max = FFMAX(max, fabsf(wbuf[j]));
+                wi[ch].clipping[w] = max;
+            }
+            for (w = 0; w < ics->num_windows; w++) {
+                if (wi[ch].clipping[w] > CLIP_AVOIDANCE_FACTOR) {
+                    ics->window_clipping[w] = 1;
+                    clip_avoidance_factor = FFMAX(clip_avoidance_factor, wi[ch].clipping[w]);
+                } else {
+                    ics->window_clipping[w] = 0;
+                }
+            }
+            if (clip_avoidance_factor > CLIP_AVOIDANCE_FACTOR) {
+                ics->clip_avoidance_factor = CLIP_AVOIDANCE_FACTOR / clip_avoidance_factor;
+            } else {
+                ics->clip_avoidance_factor = 1.0f;
+            }
+
+            apply_window_and_mdct(s, sce, overlap);
+
+            if (s->options.ltp && s->coder->update_ltp) {
+                s->coder->update_ltp(s, sce);
+                apply_window[sce->ics.window_sequence[0]](s->fdsp, sce, &sce->ltp_state[0]);
+                s->mdct1024.mdct_calc(&s->mdct1024, sce->lcoeffs, sce->ret_buf);
+            }
+
+            for (k = 0; k < 1024; k++) {
+                if (!(fabs(cpe->ch[ch].coeffs[k]) < 1E16)) { // Ensure headroom for energy calculation
+                    av_log(avctx, AV_LOG_ERROR, "Input contains (near) NaN/+-Inf\n");
+                    return AVERROR(EINVAL);
+                }
+            }
+            avoid_clipping(s, sce);
+        }
+        start_ch += chans;
+    }
+    if ((ret = ff_alloc_packet2(avctx, avpkt, 8192 * s->channels, 0)) < 0)
+        return ret;
+    frame_bits = its = 0;
+    do {
+        init_put_bits(&s->pb, avpkt->data, avpkt->size);
+
+        if ((avctx->frame_number & 0xFF)==1 && !(avctx->flags & AV_CODEC_FLAG_BITEXACT))
+            put_bitstream_info(s, LIBAVCODEC_IDENT);
+        start_ch = 0;
+        target_bits = 0;
+        memset(chan_el_counter, 0, sizeof(chan_el_counter));
+        for (i = 0; i < s->chan_map[0]; i++) {
+            FFPsyWindowInfo* wi = windows + start_ch;
+            const float *coeffs[2];
+            tag      = s->chan_map[i+1];
+            chans    = tag == TYPE_CPE ? 2 : 1;
+            cpe      = &s->cpe[i];
+            cpe->common_window = 0;
+            memset(cpe->is_mask, 0, sizeof(cpe->is_mask));
+            memset(cpe->ms_mask, 0, sizeof(cpe->ms_mask));
+            put_bits(&s->pb, 3, tag);
+            put_bits(&s->pb, 4, chan_el_counter[tag]++);
+            for (ch = 0; ch < chans; ch++) {
+                sce = &cpe->ch[ch];
+                coeffs[ch] = sce->coeffs;
+                sce->ics.predictor_present = 0;
+                sce->ics.ltp.present = 0;
+                memset(sce->ics.ltp.used, 0, sizeof(sce->ics.ltp.used));
+                memset(sce->ics.prediction_used, 0, sizeof(sce->ics.prediction_used));
+                memset(&sce->tns, 0, sizeof(TemporalNoiseShaping));
+                for (w = 0; w < 128; w++)
+                    if (sce->band_type[w] > RESERVED_BT)
+                        sce->band_type[w] = 0;
+            }
+            s->psy.bitres.alloc = -1;
+            s->psy.bitres.bits = s->last_frame_pb_count / s->channels;
+            s->psy.model->analyze(&s->psy, start_ch, coeffs, wi);
+            if (s->psy.bitres.alloc > 0) {
+                /* Lambda unused here on purpose, we need to take psy's unscaled allocation */
+                target_bits += s->psy.bitres.alloc
+                    * (s->lambda / (avctx->global_quality ? avctx->global_quality : 120));
+                s->psy.bitres.alloc /= chans;
+            }
+            s->cur_type = tag;
+            for (ch = 0; ch < chans; ch++) {
+                s->cur_channel = start_ch + ch;
+                if (s->options.pns && s->coder->mark_pns)
+                    s->coder->mark_pns(s, avctx, &cpe->ch[ch]);
+                s->coder->search_for_quantizers(avctx, s, &cpe->ch[ch], s->lambda);
+            }
+            if (chans > 1
+                && wi[0].window_type[0] == wi[1].window_type[0]
+                && wi[0].window_shape   == wi[1].window_shape) {
+
+                cpe->common_window = 1;
+                for (w = 0; w < wi[0].num_windows; w++) {
+                    if (wi[0].grouping[w] != wi[1].grouping[w]) {
+                        cpe->common_window = 0;
+                        break;
+                    }
+                }
+            }
+            for (ch = 0; ch < chans; ch++) { /* TNS and PNS */
+                sce = &cpe->ch[ch];
+                s->cur_channel = start_ch + ch;
+                if (s->options.tns && s->coder->search_for_tns)
+                    s->coder->search_for_tns(s, sce);
+                if (s->options.tns && s->coder->apply_tns_filt)
+                    s->coder->apply_tns_filt(s, sce);
+                if (sce->tns.present)
+                    tns_mode = 1;
+                if (s->options.pns && s->coder->search_for_pns)
+                    s->coder->search_for_pns(s, avctx, sce);
+            }
+            s->cur_channel = start_ch;
+            if (s->options.intensity_stereo) { /* Intensity Stereo */
+                if (s->coder->search_for_is)
+                    s->coder->search_for_is(s, avctx, cpe);
+                if (cpe->is_mode) is_mode = 1;
+                apply_intensity_stereo(cpe);
+            }
+            if (s->options.pred) { /* Prediction */
+                for (ch = 0; ch < chans; ch++) {
+                    sce = &cpe->ch[ch];
+                    s->cur_channel = start_ch + ch;
+                    if (s->options.pred && s->coder->search_for_pred)
+                        s->coder->search_for_pred(s, sce);
+                    if (cpe->ch[ch].ics.predictor_present) pred_mode = 1;
+                }
+                if (s->coder->adjust_common_pred)
+                    s->coder->adjust_common_pred(s, cpe);
+                for (ch = 0; ch < chans; ch++) {
+                    sce = &cpe->ch[ch];
+                    s->cur_channel = start_ch + ch;
+                    if (s->options.pred && s->coder->apply_main_pred)
+                        s->coder->apply_main_pred(s, sce);
+                }
+                s->cur_channel = start_ch;
+            }
+            if (s->options.mid_side) { /* Mid/Side stereo */
+                if (s->options.mid_side == -1 && s->coder->search_for_ms)
+                    s->coder->search_for_ms(s, cpe);
+                else if (cpe->common_window)
+                    memset(cpe->ms_mask, 1, sizeof(cpe->ms_mask));
+                apply_mid_side_stereo(cpe);
+            }
+            adjust_frame_information(cpe, chans);
+            if (s->options.ltp) { /* LTP */
+                for (ch = 0; ch < chans; ch++) {
+                    sce = &cpe->ch[ch];
+                    s->cur_channel = start_ch + ch;
+                    if (s->coder->search_for_ltp)
+                        s->coder->search_for_ltp(s, sce, cpe->common_window);
+                    if (sce->ics.ltp.present) pred_mode = 1;
+                }
+                s->cur_channel = start_ch;
+                if (s->coder->adjust_common_ltp)
+                    s->coder->adjust_common_ltp(s, cpe);
+            }
+            if (chans == 2) {
+                put_bits(&s->pb, 1, cpe->common_window);
+                if (cpe->common_window) {
+                    put_ics_info(s, &cpe->ch[0].ics);
+                    if (s->coder->encode_main_pred)
+                        s->coder->encode_main_pred(s, &cpe->ch[0]);
+                    if (s->coder->encode_ltp_info)
+                        s->coder->encode_ltp_info(s, &cpe->ch[0], 1);
+                    encode_ms_info(&s->pb, cpe);
+                    if (cpe->ms_mode) ms_mode = 1;
+                }
+            }
+            for (ch = 0; ch < chans; ch++) {
+                s->cur_channel = start_ch + ch;
+                encode_individual_channel(avctx, s, &cpe->ch[ch], cpe->common_window);
+            }
+            start_ch += chans;
+        }
+
+        if (avctx->flags & AV_CODEC_FLAG_QSCALE) {
+            /* When using a constant Q-scale, don't mess with lambda */
+            break;
+        }
+
+        /* rate control stuff
+         * allow between the nominal bitrate, and what psy's bit reservoir says to target
+         * but drift towards the nominal bitrate always
+         */
+        frame_bits = put_bits_count(&s->pb);
+        rate_bits = avctx->bit_rate * 1024 / avctx->sample_rate;
+        rate_bits = FFMIN(rate_bits, 6144 * s->channels - 3);
+        too_many_bits = FFMAX(target_bits, rate_bits);
+        too_many_bits = FFMIN(too_many_bits, 6144 * s->channels - 3);
+        too_few_bits = FFMIN(FFMAX(rate_bits - rate_bits/4, target_bits), too_many_bits);
+
+        /* When using ABR, be strict (but only for increasing) */
+        too_few_bits = too_few_bits - too_few_bits/8;
+        too_many_bits = too_many_bits + too_many_bits/2;
+
+        if (   its == 0 /* for steady-state Q-scale tracking */
+            || (its < 5 && (frame_bits < too_few_bits || frame_bits > too_many_bits))
+            || frame_bits >= 6144 * s->channels - 3  )
+        {
+            float ratio = ((float)rate_bits) / frame_bits;
+
+            if (frame_bits >= too_few_bits && frame_bits <= too_many_bits) {
+                /*
+                 * This path is for steady-state Q-scale tracking
+                 * When frame bits fall within the stable range, we still need to adjust
+                 * lambda to maintain it like so in a stable fashion (large jumps in lambda
+                 * create artifacts and should be avoided), but slowly
+                 */
+                ratio = sqrtf(sqrtf(ratio));
+                ratio = av_clipf(ratio, 0.9f, 1.1f);
+            } else {
+                /* Not so fast though */
+                ratio = sqrtf(ratio);
+            }
+            s->lambda = FFMIN(s->lambda * ratio, 65536.f);
+
+            /* Keep iterating if we must reduce and lambda is in the sky */
+            if (ratio > 0.9f && ratio < 1.1f) {
+                break;
+            } else {
+                if (is_mode || ms_mode || tns_mode || pred_mode) {
+                    for (i = 0; i < s->chan_map[0]; i++) {
+                        // Must restore coeffs
+                        chans = tag == TYPE_CPE ? 2 : 1;
+                        cpe = &s->cpe[i];
+                        for (ch = 0; ch < chans; ch++)
+                            memcpy(cpe->ch[ch].coeffs, cpe->ch[ch].pcoeffs, sizeof(cpe->ch[ch].coeffs));
+                    }
+                }
+                its++;
+            }
+        } else {
+            break;
+        }
+    } while (1);
+
+    if (s->options.ltp && s->coder->ltp_insert_new_frame)
+        s->coder->ltp_insert_new_frame(s);
+
+    put_bits(&s->pb, 3, TYPE_END);
+    flush_put_bits(&s->pb);
+
+    s->last_frame_pb_count = put_bits_count(&s->pb);
+
+    s->lambda_sum += s->lambda;
+    s->lambda_count++;
+
+    ff_af_queue_remove(&s->afq, avctx->frame_size, &avpkt->pts,
+                       &avpkt->duration);
+
+    avpkt->size = put_bits_count(&s->pb) >> 3;
+    *got_packet_ptr = 1;
+    return 0;
+}
+
+static av_cold int aac_encode_end(AVCodecContext *avctx)
+{
+    AACEncContext *s = avctx->priv_data;
+
+    av_log(avctx, AV_LOG_INFO, "Qavg: %.3f\n", s->lambda_sum / s->lambda_count);
+
+    ff_mdct_end(&s->mdct1024);
+    ff_mdct_end(&s->mdct128);
+    ff_psy_end(&s->psy);
+    ff_lpc_end(&s->lpc);
+    if (s->psypp)
+        ff_psy_preprocess_end(s->psypp);
+    av_freep(&s->buffer.samples);
+    av_freep(&s->cpe);
+    av_freep(&s->fdsp);
+    ff_af_queue_close(&s->afq);
+    return 0;
+}
+
+static av_cold int dsp_init(AVCodecContext *avctx, AACEncContext *s)
+{
+    int ret = 0;
+
+    s->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
+    if (!s->fdsp)
+        return AVERROR(ENOMEM);
+
+    // window init
+    ff_kbd_window_init(ff_aac_kbd_long_1024, 4.0, 1024);
+    ff_kbd_window_init(ff_aac_kbd_short_128, 6.0, 128);
+    ff_init_ff_sine_windows(10);
+    ff_init_ff_sine_windows(7);
+
+    if ((ret = ff_mdct_init(&s->mdct1024, 11, 0, 32768.0)) < 0)
+        return ret;
+    if ((ret = ff_mdct_init(&s->mdct128,   8, 0, 32768.0)) < 0)
+        return ret;
+
+    return 0;
+}
+
+static av_cold int alloc_buffers(AVCodecContext *avctx, AACEncContext *s)
+{
+    int ch;
+    FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->buffer.samples, s->channels, 3 * 1024 * sizeof(s->buffer.samples[0]), alloc_fail);
+    FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->cpe, s->chan_map[0], sizeof(ChannelElement), alloc_fail);
+
+    for(ch = 0; ch < s->channels; ch++)
+        s->planar_samples[ch] = s->buffer.samples + 3 * 1024 * ch;
+
+    return 0;
+alloc_fail:
+    return AVERROR(ENOMEM);
+}
+
+static av_cold void aac_encode_init_tables(void)
+{
+    ff_aac_tableinit();
+}
+
+static av_cold int aac_encode_init(AVCodecContext *avctx)
+{
+    AACEncContext *s = avctx->priv_data;
+    int i, ret = 0;
+    const uint8_t *sizes[2];
+    uint8_t grouping[AAC_MAX_CHANNELS];
+    int lengths[2];
+
+    /* Constants */
+    s->last_frame_pb_count = 0;
+    avctx->frame_size = 1024;
+    avctx->initial_padding = 1024;
+    s->lambda = avctx->global_quality > 0 ? avctx->global_quality : 120;
+
+    /* Channel map and unspecified bitrate guessing */
+    s->channels = avctx->channels;
+
+    s->needs_pce = 1;
+    for (i = 0; i < FF_ARRAY_ELEMS(aac_normal_chan_layouts); i++) {
+        if (avctx->channel_layout == aac_normal_chan_layouts[i]) {
+            s->needs_pce = s->options.pce;
+            break;
+        }
+    }
+
+    if (s->needs_pce) {
+        char buf[64];
+        for (i = 0; i < FF_ARRAY_ELEMS(aac_pce_configs); i++)
+            if (avctx->channel_layout == aac_pce_configs[i].layout)
+                break;
+        av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
+        ERROR_IF(i == FF_ARRAY_ELEMS(aac_pce_configs), "Unsupported channel layout \"%s\"\n", buf);
+        av_log(avctx, AV_LOG_INFO, "Using a PCE to encode channel layout \"%s\"\n", buf);
+        s->pce = aac_pce_configs[i];
+        s->reorder_map = s->pce.reorder_map;
+        s->chan_map = s->pce.config_map;
+    } else {
+        s->reorder_map = aac_chan_maps[s->channels - 1];
+        s->chan_map = aac_chan_configs[s->channels - 1];
+    }
+
+    if (!avctx->bit_rate) {
+        for (i = 1; i <= s->chan_map[0]; i++) {
+            avctx->bit_rate += s->chan_map[i] == TYPE_CPE ? 128000 : /* Pair */
+                               s->chan_map[i] == TYPE_LFE ? 16000  : /* LFE  */
+                                                            69000  ; /* SCE  */
+        }
+    }
+
+    /* Samplerate */
+    for (i = 0; i < 16; i++)
+        if (avctx->sample_rate == avpriv_mpeg4audio_sample_rates[i])
+            break;
+    s->samplerate_index = i;
+    ERROR_IF(s->samplerate_index == 16 ||
+             s->samplerate_index >= ff_aac_swb_size_1024_len ||
+             s->samplerate_index >= ff_aac_swb_size_128_len,
+             "Unsupported sample rate %d\n", avctx->sample_rate);
+
+    /* Bitrate limiting */
+    WARN_IF(1024.0 * avctx->bit_rate / avctx->sample_rate > 6144 * s->channels,
+             "Too many bits %f > %d per frame requested, clamping to max\n",
+             1024.0 * avctx->bit_rate / avctx->sample_rate,
+             6144 * s->channels);
+    avctx->bit_rate = (int64_t)FFMIN(6144 * s->channels / 1024.0 * avctx->sample_rate,
+                                     avctx->bit_rate);
+
+    /* Profile and option setting */
+    avctx->profile = avctx->profile == FF_PROFILE_UNKNOWN ? FF_PROFILE_AAC_LOW :
+                     avctx->profile;
+    for (i = 0; i < FF_ARRAY_ELEMS(aacenc_profiles); i++)
+        if (avctx->profile == aacenc_profiles[i])
+            break;
+    if (avctx->profile == FF_PROFILE_MPEG2_AAC_LOW) {
+        avctx->profile = FF_PROFILE_AAC_LOW;
+        ERROR_IF(s->options.pred,
+                 "Main prediction unavailable in the \"mpeg2_aac_low\" profile\n");
+        ERROR_IF(s->options.ltp,
+                 "LTP prediction unavailable in the \"mpeg2_aac_low\" profile\n");
+        WARN_IF(s->options.pns,
+                "PNS unavailable in the \"mpeg2_aac_low\" profile, turning off\n");
+        s->options.pns = 0;
+    } else if (avctx->profile == FF_PROFILE_AAC_LTP) {
+        s->options.ltp = 1;
+        ERROR_IF(s->options.pred,
+                 "Main prediction unavailable in the \"aac_ltp\" profile\n");
+    } else if (avctx->profile == FF_PROFILE_AAC_MAIN) {
+        s->options.pred = 1;
+        ERROR_IF(s->options.ltp,
+                 "LTP prediction unavailable in the \"aac_main\" profile\n");
+    } else if (s->options.ltp) {
+        avctx->profile = FF_PROFILE_AAC_LTP;
+        WARN_IF(1,
+                "Chainging profile to \"aac_ltp\"\n");
+        ERROR_IF(s->options.pred,
+                 "Main prediction unavailable in the \"aac_ltp\" profile\n");
+    } else if (s->options.pred) {
+        avctx->profile = FF_PROFILE_AAC_MAIN;
+        WARN_IF(1,
+                "Chainging profile to \"aac_main\"\n");
+        ERROR_IF(s->options.ltp,
+                 "LTP prediction unavailable in the \"aac_main\" profile\n");
+    }
+    s->profile = avctx->profile;
+
+    /* Coder limitations */
+    s->coder = &ff_aac_coders[s->options.coder];
+    if (s->options.coder == AAC_CODER_ANMR) {
+        ERROR_IF(avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL,
+                 "The ANMR coder is considered experimental, add -strict -2 to enable!\n");
+        s->options.intensity_stereo = 0;
+        s->options.pns = 0;
+    }
+    ERROR_IF(s->options.ltp && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL,
+             "The LPT profile requires experimental compliance, add -strict -2 to enable!\n");
+
+    /* M/S introduces horrible artifacts with multichannel files, this is temporary */
+    if (s->channels > 3)
+        s->options.mid_side = 0;
+
+    if ((ret = dsp_init(avctx, s)) < 0)
+        goto fail;
+
+    if ((ret = alloc_buffers(avctx, s)) < 0)
+        goto fail;
+
+    if ((ret = put_audio_specific_config(avctx)))
+        goto fail;
+
+    sizes[0]   = ff_aac_swb_size_1024[s->samplerate_index];
+    sizes[1]   = ff_aac_swb_size_128[s->samplerate_index];
+    lengths[0] = ff_aac_num_swb_1024[s->samplerate_index];
+    lengths[1] = ff_aac_num_swb_128[s->samplerate_index];
+    for (i = 0; i < s->chan_map[0]; i++)
+        grouping[i] = s->chan_map[i + 1] == TYPE_CPE;
+    if ((ret = ff_psy_init(&s->psy, avctx, 2, sizes, lengths,
+                           s->chan_map[0], grouping)) < 0)
+        goto fail;
+    s->psypp = ff_psy_preprocess_init(avctx);
+    ff_lpc_init(&s->lpc, 2*avctx->frame_size, TNS_MAX_ORDER, FF_LPC_TYPE_LEVINSON);
+    s->random_state = 0x1f2e3d4c;
+
+    s->abs_pow34   = abs_pow34_v;
+    s->quant_bands = quantize_bands;
+
+    if (ARCH_X86)
+        ff_aac_dsp_init_x86(s);
+
+    if (HAVE_MIPSDSP)
+        ff_aac_coder_init_mips(s);
+
+    if ((ret = ff_thread_once(&aac_table_init, &aac_encode_init_tables)) != 0)
+        return AVERROR_UNKNOWN;
+
+    ff_af_queue_init(avctx, &s->afq);
+
+    return 0;
+fail:
+    aac_encode_end(avctx);
+    return ret;
+}
+
+#define AACENC_FLAGS AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM
+static const AVOption aacenc_options[] = {
+    {"aac_coder", "Coding algorithm", offsetof(AACEncContext, options.coder), AV_OPT_TYPE_INT, {.i64 = AAC_CODER_FAST}, 0, AAC_CODER_NB-1, AACENC_FLAGS, "coder"},
+        {"anmr",     "ANMR method",               0, AV_OPT_TYPE_CONST, {.i64 = AAC_CODER_ANMR},    INT_MIN, INT_MAX, AACENC_FLAGS, "coder"},
+        {"twoloop",  "Two loop searching method", 0, AV_OPT_TYPE_CONST, {.i64 = AAC_CODER_TWOLOOP}, INT_MIN, INT_MAX, AACENC_FLAGS, "coder"},
+        {"fast",     "Default fast search",       0, AV_OPT_TYPE_CONST, {.i64 = AAC_CODER_FAST},    INT_MIN, INT_MAX, AACENC_FLAGS, "coder"},
+    {"aac_ms", "Force M/S stereo coding", offsetof(AACEncContext, options.mid_side), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AACENC_FLAGS},
+    {"aac_is", "Intensity stereo coding", offsetof(AACEncContext, options.intensity_stereo), AV_OPT_TYPE_BOOL, {.i64 = 1}, -1, 1, AACENC_FLAGS},
+    {"aac_pns", "Perceptual noise substitution", offsetof(AACEncContext, options.pns), AV_OPT_TYPE_BOOL, {.i64 = 1}, -1, 1, AACENC_FLAGS},
+    {"aac_tns", "Temporal noise shaping", offsetof(AACEncContext, options.tns), AV_OPT_TYPE_BOOL, {.i64 = 1}, -1, 1, AACENC_FLAGS},
+    {"aac_ltp", "Long term prediction", offsetof(AACEncContext, options.ltp), AV_OPT_TYPE_BOOL, {.i64 = 0}, -1, 1, AACENC_FLAGS},
+    {"aac_pred", "AAC-Main prediction", offsetof(AACEncContext, options.pred), AV_OPT_TYPE_BOOL, {.i64 = 0}, -1, 1, AACENC_FLAGS},
+    {"aac_pce", "Forces the use of PCEs", offsetof(AACEncContext, options.pce), AV_OPT_TYPE_BOOL, {.i64 = 0}, -1, 1, AACENC_FLAGS},
+    {NULL}
+};
+
+static const AVClass aacenc_class = {
+    .class_name = "AAC encoder",
+    .item_name  = av_default_item_name,
+    .option     = aacenc_options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+static const AVCodecDefault aac_encode_defaults[] = {
+    { "b", "0" },
+    { NULL }
+};
+
+AVCodec ff_aac_encoder = {
+    .name           = "aac",
+    .long_name      = NULL_IF_CONFIG_SMALL("AAC (Advanced Audio Coding)"),
+    .type           = AVMEDIA_TYPE_AUDIO,
+    .id             = AV_CODEC_ID_AAC,
+    .priv_data_size = sizeof(AACEncContext),
+    .init           = aac_encode_init,
+    .encode2        = aac_encode_frame,
+    .close          = aac_encode_end,
+    .defaults       = aac_encode_defaults,
+    .supported_samplerates = mpeg4audio_sample_rates,
+    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
+    .capabilities   = AV_CODEC_CAP_SMALL_LAST_FRAME | AV_CODEC_CAP_DELAY,
+    .sample_fmts    = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLTP,
+                                                     AV_SAMPLE_FMT_NONE },
+    .priv_class     = &aacenc_class,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc.h
new file mode 100644
index 000000000..5a015ca92
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc.h
@@ -0,0 +1,428 @@
+/*
+ * AAC encoder
+ * Copyright (C) 2008 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AACENC_H
+#define AVCODEC_AACENC_H
+
+#include "libavutil/float_dsp.h"
+#include "avcodec.h"
+#include "put_bits.h"
+
+#include "aac.h"
+#include "audio_frame_queue.h"
+#include "psymodel.h"
+
+#include "lpc.h"
+
+typedef enum AACCoder {
+    AAC_CODER_ANMR = 0,
+    AAC_CODER_TWOLOOP,
+    AAC_CODER_FAST,
+
+    AAC_CODER_NB,
+}AACCoder;
+
+typedef struct AACEncOptions {
+    int coder;
+    int pns;
+    int tns;
+    int ltp;
+    int pce;
+    int pred;
+    int mid_side;
+    int intensity_stereo;
+} AACEncOptions;
+
+struct AACEncContext;
+
+typedef struct AACCoefficientsEncoder {
+    void (*search_for_quantizers)(AVCodecContext *avctx, struct AACEncContext *s,
+                                  SingleChannelElement *sce, const float lambda);
+    void (*encode_window_bands_info)(struct AACEncContext *s, SingleChannelElement *sce,
+                                     int win, int group_len, const float lambda);
+    void (*quantize_and_encode_band)(struct AACEncContext *s, PutBitContext *pb, const float *in, float *out, int size,
+                                     int scale_idx, int cb, const float lambda, int rtz);
+    void (*encode_tns_info)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*encode_ltp_info)(struct AACEncContext *s, SingleChannelElement *sce, int common_window);
+    void (*encode_main_pred)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*adjust_common_pred)(struct AACEncContext *s, ChannelElement *cpe);
+    void (*adjust_common_ltp)(struct AACEncContext *s, ChannelElement *cpe);
+    void (*apply_main_pred)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*apply_tns_filt)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*update_ltp)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*ltp_insert_new_frame)(struct AACEncContext *s);
+    void (*set_special_band_scalefactors)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*search_for_pns)(struct AACEncContext *s, AVCodecContext *avctx, SingleChannelElement *sce);
+    void (*mark_pns)(struct AACEncContext *s, AVCodecContext *avctx, SingleChannelElement *sce);
+    void (*search_for_tns)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*search_for_ltp)(struct AACEncContext *s, SingleChannelElement *sce, int common_window);
+    void (*search_for_ms)(struct AACEncContext *s, ChannelElement *cpe);
+    void (*search_for_is)(struct AACEncContext *s, AVCodecContext *avctx, ChannelElement *cpe);
+    void (*search_for_pred)(struct AACEncContext *s, SingleChannelElement *sce);
+} AACCoefficientsEncoder;
+
+extern const AACCoefficientsEncoder ff_aac_coders[];
+
+typedef struct AACQuantizeBandCostCacheEntry {
+    float rd;
+    float energy;
+    int bits;
+    char cb;
+    char rtz;
+    uint16_t generation;
+} AACQuantizeBandCostCacheEntry;
+
+typedef struct AACPCEInfo {
+    int64_t layout;
+    int num_ele[4];                              ///< front, side, back, lfe
+    int pairing[3][8];                           ///< front, side, back
+    int index[4][8];                             ///< front, side, back, lfe
+    uint8_t config_map[16];                      ///< configs the encoder's channel specific settings
+    uint8_t reorder_map[16];                     ///< maps channels from lavc to aac order
+} AACPCEInfo;
+
+/**
+ * List of PCE (Program Configuration Element) for the channel layouts listed
+ * in channel_layout.h
+ *
+ * For those wishing in the future to add other layouts:
+ *
+ * - num_ele: number of elements in each group of front, side, back, lfe channels
+ *            (an element is of type SCE (single channel), CPE (channel pair) for
+ *            the first 3 groups; and is LFE for LFE group).
+ *
+ * - pairing: 0 for an SCE element or 1 for a CPE; does not apply to LFE group
+ *
+ * - index: there are three independent indices for SCE, CPE and LFE;
+ *     they are incremented irrespective of the group to which the element belongs;
+ *     they are not reset when going from one group to another
+ *
+ *     Example: for 7.0 channel layout,
+ *        .pairing = { { 1, 0 }, { 1 }, { 1 }, }, (3 CPE and 1 SCE in front group)
+ *        .index = { { 0, 0 }, { 1 }, { 2 }, },
+ *               (index is 0 for the single SCE but goes from 0 to 2 for the CPEs)
+ *
+ *     The index order impacts the channel ordering. But is otherwise arbitrary
+ *     (the sequence could have been 2, 0, 1 instead of 0, 1, 2).
+ *
+ *     Spec allows for discontinuous indices, e.g. if one has a total of two SCE,
+ *     SCE.0 SCE.15 is OK per spec; BUT it won't be decoded by our AAC decoder
+ *     which at this time requires that indices fully cover some range starting
+ *     from 0 (SCE.1 SCE.0 is OK but not SCE.0 SCE.15).
+ *
+ * - config_map: total number of elements and their types. Beware, the way the
+ *               types are ordered impacts the final channel ordering.
+ *
+ * - reorder_map: reorders the channels.
+ *
+ */
+static const AACPCEInfo aac_pce_configs[] = {
+    {
+        .layout = AV_CH_LAYOUT_MONO,
+        .num_ele = { 1, 0, 0, 0 },
+        .pairing = { { 0 }, },
+        .index = { { 0 }, },
+        .config_map = { 1, TYPE_SCE, },
+        .reorder_map = { 0 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_STEREO,
+        .num_ele = { 1, 0, 0, 0 },
+        .pairing = { { 1 }, },
+        .index = { { 0 }, },
+        .config_map = { 1, TYPE_CPE, },
+        .reorder_map = { 0, 1 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_2POINT1,
+        .num_ele = { 1, 0, 0, 1 },
+        .pairing = { { 1 }, },
+        .index = { { 0 },{ 0 },{ 0 },{ 0 } },
+        .config_map = { 2, TYPE_CPE, TYPE_LFE },
+        .reorder_map = { 0, 1, 2 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_2_1,
+        .num_ele = { 1, 0, 1, 0 },
+        .pairing = { { 1 },{ 0 },{ 0 } },
+        .index = { { 0 },{ 0 },{ 0 }, },
+        .config_map = { 2, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_SURROUND,
+        .num_ele = { 2, 0, 0, 0 },
+        .pairing = { { 1, 0 }, },
+        .index = { { 0, 0 }, },
+        .config_map = { 2, TYPE_CPE, TYPE_SCE, },
+        .reorder_map = { 0, 1, 2 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_3POINT1,
+        .num_ele = { 2, 0, 0, 1 },
+        .pairing = { { 1, 0 }, },
+        .index = { { 0, 0 }, { 0 }, { 0 }, { 0 }, },
+        .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_LFE },
+        .reorder_map = { 0, 1, 2, 3 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_4POINT0,
+        .num_ele = { 2, 0, 1, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 0 }, },
+        .index = { { 0, 0 }, { 0 }, { 1 } },
+        .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_SCE },
+        .reorder_map = {  0, 1, 2, 3 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_4POINT1,
+        .num_ele = { 2, 1, 1, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 0 }, },
+        .index = { { 0, 0 }, { 1 }, { 2 }, { 0 } },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_2_2,
+        .num_ele = { 1, 1, 0, 0 },
+        .pairing = { { 1 }, { 1 }, },
+        .index = { { 0 }, { 1 }, },
+        .config_map = { 2, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_QUAD,
+        .num_ele = { 1, 0, 1, 0 },
+        .pairing = { { 1 }, { 0 }, { 1 }, },
+        .index = { { 0 }, { 0 }, { 1 } },
+        .config_map = { 2, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_5POINT0,
+        .num_ele = { 2, 1, 0, 0 },
+        .pairing = { { 1, 0 }, { 1 }, },
+        .index = { { 0, 0 }, { 1 } },
+        .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_5POINT1,
+        .num_ele = { 2, 1, 1, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 1 } },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_5POINT0_BACK,
+        .num_ele = { 2, 0, 1, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1 } },
+        .index = { { 0, 0 }, { 0 }, { 1 } },
+        .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_5POINT1_BACK,
+        .num_ele = { 2, 1, 1, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 1 } },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_6POINT0,
+        .num_ele = { 2, 1, 1, 0 },
+        .pairing = { { 1, 0 }, { 1 }, { 0 }, },
+        .index = { { 0, 0 }, { 1 }, { 1 } },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_6POINT0_FRONT,
+        .num_ele = { 2, 1, 0, 0 },
+        .pairing = { { 1, 1 }, { 1 } },
+        .index = { { 1, 0 }, { 2 }, },
+        .config_map = { 3, TYPE_CPE, TYPE_CPE, TYPE_CPE, },
+        .reorder_map = { 0, 1, 2, 3, 4, 5 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_HEXAGONAL,
+        .num_ele = { 2, 0, 2, 0 },
+        .pairing = { { 1, 0 },{ 0 },{ 1, 0 }, },
+        .index = { { 0, 0 },{ 0 },{ 1, 1 } },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE, },
+        .reorder_map = { 0, 1, 2, 3, 4, 5 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_6POINT1,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 },{ 0 },{ 1, 0 }, },
+        .index = { { 0, 0 },{ 1 },{ 1, 2 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_6POINT1_BACK,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1, 0 }, },
+        .index = { { 0, 0 }, { 1 }, { 1, 2 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_6POINT1_FRONT,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1, 0 }, },
+        .index = { { 0, 0 }, { 1 }, { 1, 2 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_7POINT0,
+        .num_ele = { 2, 1, 1, 0 },
+        .pairing = { { 1, 0 }, { 1 }, { 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 2 }, },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_7POINT0_FRONT,
+        .num_ele = { 2, 1, 1, 0 },
+        .pairing = { { 1, 0 }, { 1 }, { 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 2 }, },
+        .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_7POINT1,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1, 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 1, 2 }, { 0 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE,  TYPE_SCE, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_7POINT1_WIDE,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 }, { 0 },{  1, 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 1, 2 }, { 0 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_7POINT1_WIDE_BACK,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 }, { 0 }, { 1, 1 }, },
+        .index = { { 0, 0 }, { 1 }, { 1, 2 }, { 0 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_CPE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_OCTAGONAL,
+        .num_ele = { 2, 1, 2, 0 },
+        .pairing = { { 1, 0 }, { 1 }, { 1, 0 }, },
+        .index = { { 0, 0 }, { 1 }, { 2, 1 } },
+        .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 },
+    },
+    {   /* Meant for order 2/mixed ambisonics */
+        .layout = AV_CH_LAYOUT_OCTAGONAL | AV_CH_TOP_CENTER,
+        .num_ele = { 2, 2, 2, 0 },
+        .pairing = { { 1, 0 }, { 1, 0 }, { 1, 0 }, },
+        .index = { { 0, 0 }, { 1, 1 }, { 2, 2 } },
+        .config_map = { 6, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7, 8 },
+    },
+    {   /* Meant for order 2/mixed ambisonics */
+        .layout = AV_CH_LAYOUT_6POINT0_FRONT | AV_CH_BACK_CENTER |
+                  AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT | AV_CH_TOP_CENTER,
+        .num_ele = { 2, 2, 2, 0 },
+        .pairing = { { 1, 1 }, { 1, 0 }, { 1, 0 }, },
+        .index = { { 0, 1 }, { 2, 0 }, { 3, 1 } },
+        .config_map = { 6, TYPE_CPE, TYPE_CPE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },
+    },
+    {
+        .layout = AV_CH_LAYOUT_HEXADECAGONAL,
+        .num_ele = { 4, 2, 4, 0 },
+        .pairing = { { 1, 0, 1, 0 }, { 1, 1 }, { 1, 0, 1, 0 }, },
+        .index = { { 0, 0, 1, 1 }, { 2, 3 }, { 4, 2, 5, 3 } },
+        .config_map = { 10, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE },
+        .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
+    },
+};
+
+/**
+ * AAC encoder context
+ */
+typedef struct AACEncContext {
+    AVClass *av_class;
+    AACEncOptions options;                       ///< encoding options
+    PutBitContext pb;
+    FFTContext mdct1024;                         ///< long (1024 samples) frame transform context
+    FFTContext mdct128;                          ///< short (128 samples) frame transform context
+    AVFloatDSPContext *fdsp;
+    AACPCEInfo pce;                              ///< PCE data, if needed
+    float *planar_samples[16];                   ///< saved preprocessed input
+
+    int profile;                                 ///< copied from avctx
+    int needs_pce;                               ///< flag for non-standard layout
+    LPCContext lpc;                              ///< used by TNS
+    int samplerate_index;                        ///< MPEG-4 samplerate index
+    int channels;                                ///< channel count
+    const uint8_t *reorder_map;                  ///< lavc to aac reorder map
+    const uint8_t *chan_map;                     ///< channel configuration map
+
+    ChannelElement *cpe;                         ///< channel elements
+    FFPsyContext psy;
+    struct FFPsyPreprocessContext* psypp;
+    const AACCoefficientsEncoder *coder;
+    int cur_channel;                             ///< current channel for coder context
+    int random_state;
+    float lambda;
+    int last_frame_pb_count;                     ///< number of bits for the previous frame
+    float lambda_sum;                            ///< sum(lambda), for Qvg reporting
+    int lambda_count;                            ///< count(lambda), for Qvg reporting
+    enum RawDataBlockType cur_type;              ///< channel group type cur_channel belongs to
+
+    AudioFrameQueue afq;
+    DECLARE_ALIGNED(16, int,   qcoefs)[96];      ///< quantized coefficients
+    DECLARE_ALIGNED(32, float, scoefs)[1024];    ///< scaled coefficients
+
+    uint16_t quantize_band_cost_cache_generation;
+    AACQuantizeBandCostCacheEntry quantize_band_cost_cache[256][128]; ///< memoization area for quantize_band_cost
+
+    void (*abs_pow34)(float *out, const float *in, const int size);
+    void (*quant_bands)(int *out, const float *in, const float *scaled,
+                        int size, int is_signed, int maxval, const float Q34,
+                        const float rounding);
+
+    struct {
+        float *samples;
+    } buffer;
+} AACEncContext;
+
+void ff_aac_dsp_init_x86(AACEncContext *s);
+void ff_aac_coder_init_mips(AACEncContext *c);
+void ff_quantize_band_cost_cache_init(struct AACEncContext *s);
+
+
+#endif /* AVCODEC_AACENC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_is.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_is.c
new file mode 100644
index 000000000..2f5b7eb8d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_is.c
@@ -0,0 +1,158 @@
+/*
+ * AAC encoder intensity stereo
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder Intensity Stereo
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#include "aacenc.h"
+#include "aacenc_utils.h"
+#include "aacenc_is.h"
+#include "aacenc_quantization.h"
+
+struct AACISError ff_aac_is_encoding_err(AACEncContext *s, ChannelElement *cpe,
+                                         int start, int w, int g, float ener0,
+                                         float ener1, float ener01,
+                                         int use_pcoeffs, int phase)
+{
+    int i, w2;
+    SingleChannelElement *sce0 = &cpe->ch[0];
+    SingleChannelElement *sce1 = &cpe->ch[1];
+    float *L = use_pcoeffs ? sce0->pcoeffs : sce0->coeffs;
+    float *R = use_pcoeffs ? sce1->pcoeffs : sce1->coeffs;
+    float *L34 = &s->scoefs[256*0], *R34 = &s->scoefs[256*1];
+    float *IS  = &s->scoefs[256*2], *I34 = &s->scoefs[256*3];
+    float dist1 = 0.0f, dist2 = 0.0f;
+    struct AACISError is_error = {0};
+
+    if (ener01 <= 0 || ener0 <= 0) {
+        is_error.pass = 0;
+        return is_error;
+    }
+
+    for (w2 = 0; w2 < sce0->ics.group_len[w]; w2++) {
+        FFPsyBand *band0 = &s->psy.ch[s->cur_channel+0].psy_bands[(w+w2)*16+g];
+        FFPsyBand *band1 = &s->psy.ch[s->cur_channel+1].psy_bands[(w+w2)*16+g];
+        int is_band_type, is_sf_idx = FFMAX(1, sce0->sf_idx[w*16+g]-4);
+        float e01_34 = phase*pos_pow34(ener1/ener0);
+        float maxval, dist_spec_err = 0.0f;
+        float minthr = FFMIN(band0->threshold, band1->threshold);
+        for (i = 0; i < sce0->ics.swb_sizes[g]; i++)
+            IS[i] = (L[start+(w+w2)*128+i] + phase*R[start+(w+w2)*128+i])*sqrt(ener0/ener01);
+        s->abs_pow34(L34, &L[start+(w+w2)*128], sce0->ics.swb_sizes[g]);
+        s->abs_pow34(R34, &R[start+(w+w2)*128], sce0->ics.swb_sizes[g]);
+        s->abs_pow34(I34, IS,                   sce0->ics.swb_sizes[g]);
+        maxval = find_max_val(1, sce0->ics.swb_sizes[g], I34);
+        is_band_type = find_min_book(maxval, is_sf_idx);
+        dist1 += quantize_band_cost(s, &L[start + (w+w2)*128], L34,
+                                    sce0->ics.swb_sizes[g],
+                                    sce0->sf_idx[w*16+g],
+                                    sce0->band_type[w*16+g],
+                                    s->lambda / band0->threshold, INFINITY, NULL, NULL, 0);
+        dist1 += quantize_band_cost(s, &R[start + (w+w2)*128], R34,
+                                    sce1->ics.swb_sizes[g],
+                                    sce1->sf_idx[w*16+g],
+                                    sce1->band_type[w*16+g],
+                                    s->lambda / band1->threshold, INFINITY, NULL, NULL, 0);
+        dist2 += quantize_band_cost(s, IS, I34, sce0->ics.swb_sizes[g],
+                                    is_sf_idx, is_band_type,
+                                    s->lambda / minthr, INFINITY, NULL, NULL, 0);
+        for (i = 0; i < sce0->ics.swb_sizes[g]; i++) {
+            dist_spec_err += (L34[i] - I34[i])*(L34[i] - I34[i]);
+            dist_spec_err += (R34[i] - I34[i]*e01_34)*(R34[i] - I34[i]*e01_34);
+        }
+        dist_spec_err *= s->lambda / minthr;
+        dist2 += dist_spec_err;
+    }
+
+    is_error.pass = dist2 <= dist1;
+    is_error.phase = phase;
+    is_error.error = dist2 - dist1;
+    is_error.dist1 = dist1;
+    is_error.dist2 = dist2;
+    is_error.ener01 = ener01;
+
+    return is_error;
+}
+
+void ff_aac_search_for_is(AACEncContext *s, AVCodecContext *avctx, ChannelElement *cpe)
+{
+    SingleChannelElement *sce0 = &cpe->ch[0];
+    SingleChannelElement *sce1 = &cpe->ch[1];
+    int start = 0, count = 0, w, w2, g, i, prev_sf1 = -1, prev_bt = -1, prev_is = 0;
+    const float freq_mult = avctx->sample_rate/(1024.0f/sce0->ics.num_windows)/2.0f;
+    uint8_t nextband1[128];
+
+    if (!cpe->common_window)
+        return;
+
+    /** Scout out next nonzero bands */
+    ff_init_nextband_map(sce1, nextband1);
+
+    for (w = 0; w < sce0->ics.num_windows; w += sce0->ics.group_len[w]) {
+        start = 0;
+        for (g = 0;  g < sce0->ics.num_swb; g++) {
+            if (start*freq_mult > INT_STEREO_LOW_LIMIT*(s->lambda/170.0f) &&
+                cpe->ch[0].band_type[w*16+g] != NOISE_BT && !cpe->ch[0].zeroes[w*16+g] &&
+                cpe->ch[1].band_type[w*16+g] != NOISE_BT && !cpe->ch[1].zeroes[w*16+g] &&
+                ff_sfdelta_can_remove_band(sce1, nextband1, prev_sf1, w*16+g)) {
+                float ener0 = 0.0f, ener1 = 0.0f, ener01 = 0.0f, ener01p = 0.0f;
+                struct AACISError ph_err1, ph_err2, *best;
+                for (w2 = 0; w2 < sce0->ics.group_len[w]; w2++) {
+                    for (i = 0; i < sce0->ics.swb_sizes[g]; i++) {
+                        float coef0 = sce0->coeffs[start+(w+w2)*128+i];
+                        float coef1 = sce1->coeffs[start+(w+w2)*128+i];
+                        ener0  += coef0*coef0;
+                        ener1  += coef1*coef1;
+                        ener01 += (coef0 + coef1)*(coef0 + coef1);
+                        ener01p += (coef0 - coef1)*(coef0 - coef1);
+                    }
+                }
+                ph_err1 = ff_aac_is_encoding_err(s, cpe, start, w, g,
+                                                 ener0, ener1, ener01p, 0, -1);
+                ph_err2 = ff_aac_is_encoding_err(s, cpe, start, w, g,
+                                                 ener0, ener1, ener01, 0, +1);
+                best = (ph_err1.pass && ph_err1.error < ph_err2.error) ? &ph_err1 : &ph_err2;
+                if (best->pass) {
+                    cpe->is_mask[w*16+g] = 1;
+                    cpe->ms_mask[w*16+g] = 0;
+                    cpe->ch[0].is_ener[w*16+g] = sqrt(ener0 / best->ener01);
+                    cpe->ch[1].is_ener[w*16+g] = ener0/ener1;
+                    cpe->ch[1].band_type[w*16+g] = (best->phase > 0) ? INTENSITY_BT : INTENSITY_BT2;
+                    if (prev_is && prev_bt != cpe->ch[1].band_type[w*16+g]) {
+                        /** Flip M/S mask and pick the other CB, since it encodes more efficiently */
+                        cpe->ms_mask[w*16+g] = 1;
+                        cpe->ch[1].band_type[w*16+g] = (best->phase > 0) ? INTENSITY_BT2 : INTENSITY_BT;
+                    }
+                    prev_bt = cpe->ch[1].band_type[w*16+g];
+                    count++;
+                }
+            }
+            if (!sce1->zeroes[w*16+g] && sce1->band_type[w*16+g] < RESERVED_BT)
+                prev_sf1 = sce1->sf_idx[w*16+g];
+            prev_is = cpe->is_mask[w*16+g];
+            start += sce0->ics.swb_sizes[g];
+        }
+    }
+    cpe->is_mode = !!count;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_is.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_is.h
new file mode 100644
index 000000000..269fd1a9c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_is.h
@@ -0,0 +1,51 @@
+/*
+ * AAC encoder intensity stereo
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder Intensity Stereo
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENC_IS_H
+#define AVCODEC_AACENC_IS_H
+
+#include "aacenc.h"
+
+/** Frequency in Hz for lower limit of intensity stereo **/
+#define INT_STEREO_LOW_LIMIT 6100
+
+struct AACISError {
+    int pass;    /* 1 if dist2 <= dist1  */
+    int phase;   /* -1 or +1             */
+    float error; /* fabs(dist1 - dist2)  */
+    float dist1; /* From original coeffs */
+    float dist2; /* From IS'd coeffs     */
+    float ener01;
+};
+
+struct AACISError ff_aac_is_encoding_err(AACEncContext *s, ChannelElement *cpe,
+                                         int start, int w, int g, float ener0,
+                                         float ener1, float ener01,
+                                         int use_pcoeffs, int phase);
+void ff_aac_search_for_is(AACEncContext *s, AVCodecContext *avctx, ChannelElement *cpe);
+
+#endif /* AVCODEC_AACENC_IS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_ltp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_ltp.c
new file mode 100644
index 000000000..f77f0b6a7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_ltp.c
@@ -0,0 +1,236 @@
+/*
+ * AAC encoder long term prediction extension
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder long term prediction extension
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#include "aacenc_ltp.h"
+#include "aacenc_quantization.h"
+#include "aacenc_utils.h"
+
+/**
+ * Encode LTP data.
+ */
+void ff_aac_encode_ltp_info(AACEncContext *s, SingleChannelElement *sce,
+                            int common_window)
+{
+    int i;
+    IndividualChannelStream *ics = &sce->ics;
+    if (s->profile != FF_PROFILE_AAC_LTP || !ics->predictor_present)
+        return;
+    if (common_window)
+        put_bits(&s->pb, 1, 0);
+    put_bits(&s->pb, 1, ics->ltp.present);
+    if (!ics->ltp.present)
+        return;
+    put_bits(&s->pb, 11, ics->ltp.lag);
+    put_bits(&s->pb, 3,  ics->ltp.coef_idx);
+    for (i = 0; i < FFMIN(ics->max_sfb, MAX_LTP_LONG_SFB); i++)
+        put_bits(&s->pb, 1, ics->ltp.used[i]);
+}
+
+void ff_aac_ltp_insert_new_frame(AACEncContext *s)
+{
+    int i, ch, tag, chans, cur_channel, start_ch = 0;
+    ChannelElement *cpe;
+    SingleChannelElement *sce;
+    for (i = 0; i < s->chan_map[0]; i++) {
+        cpe = &s->cpe[i];
+        tag      = s->chan_map[i+1];
+        chans    = tag == TYPE_CPE ? 2 : 1;
+        for (ch = 0; ch < chans; ch++) {
+            sce = &cpe->ch[ch];
+            cur_channel = start_ch + ch;
+            /* New sample + overlap */
+            memcpy(&sce->ltp_state[0],    &sce->ltp_state[1024], 1024*sizeof(sce->ltp_state[0]));
+            memcpy(&sce->ltp_state[1024], &s->planar_samples[cur_channel][2048], 1024*sizeof(sce->ltp_state[0]));
+            memcpy(&sce->ltp_state[2048], &sce->ret_buf[0], 1024*sizeof(sce->ltp_state[0]));
+            sce->ics.ltp.lag = 0;
+        }
+        start_ch += chans;
+    }
+}
+
+static void get_lag(float *buf, const float *new, LongTermPrediction *ltp)
+{
+    int i, j, lag = 0, max_corr = 0;
+    float max_ratio = 0.0f;
+    for (i = 0; i < 2048; i++) {
+        float corr, s0 = 0.0f, s1 = 0.0f;
+        const int start = FFMAX(0, i - 1024);
+        for (j = start; j < 2048; j++) {
+            const int idx = j - i + 1024;
+            s0 += new[j]*buf[idx];
+            s1 += buf[idx]*buf[idx];
+        }
+        corr = s1 > 0.0f ? s0/sqrt(s1) : 0.0f;
+        if (corr > max_corr) {
+            max_corr = corr;
+            lag = i;
+            max_ratio = corr/(2048-start);
+        }
+    }
+    ltp->lag = FFMAX(av_clip_uintp2(lag, 11), 0);
+    ltp->coef_idx = quant_array_idx(max_ratio, ltp_coef, 8);
+    ltp->coef = ltp_coef[ltp->coef_idx];
+}
+
+static void generate_samples(float *buf, LongTermPrediction *ltp)
+{
+    int i, samples_num = 2048;
+    if (!ltp->lag) {
+        ltp->present = 0;
+        return;
+    } else if (ltp->lag < 1024) {
+        samples_num = ltp->lag + 1024;
+    }
+    for (i = 0; i < samples_num; i++)
+        buf[i] = ltp->coef*buf[i + 2048 - ltp->lag];
+    memset(&buf[i], 0, (2048 - i)*sizeof(float));
+}
+
+/**
+ * Process LTP parameters
+ * @see Patent WO2006070265A1
+ */
+void ff_aac_update_ltp(AACEncContext *s, SingleChannelElement *sce)
+{
+    float *pred_signal = &sce->ltp_state[0];
+    const float *samples = &s->planar_samples[s->cur_channel][1024];
+
+    if (s->profile != FF_PROFILE_AAC_LTP)
+        return;
+
+    /* Calculate lag */
+    get_lag(pred_signal, samples, &sce->ics.ltp);
+    generate_samples(pred_signal, &sce->ics.ltp);
+}
+
+void ff_aac_adjust_common_ltp(AACEncContext *s, ChannelElement *cpe)
+{
+    int sfb, count = 0;
+    SingleChannelElement *sce0 = &cpe->ch[0];
+    SingleChannelElement *sce1 = &cpe->ch[1];
+
+    if (!cpe->common_window ||
+        sce0->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE ||
+        sce1->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+        sce0->ics.ltp.present = 0;
+        return;
+    }
+
+    for (sfb = 0; sfb < FFMIN(sce0->ics.max_sfb, MAX_LTP_LONG_SFB); sfb++) {
+        int sum = sce0->ics.ltp.used[sfb] + sce1->ics.ltp.used[sfb];
+        if (sum != 2) {
+            sce0->ics.ltp.used[sfb] = 0;
+        } else {
+            count++;
+        }
+    }
+
+    sce0->ics.ltp.present = !!count;
+    sce0->ics.predictor_present = !!count;
+}
+
+/**
+ * Mark LTP sfb's
+ */
+void ff_aac_search_for_ltp(AACEncContext *s, SingleChannelElement *sce,
+                           int common_window)
+{
+    int w, g, w2, i, start = 0, count = 0;
+    int saved_bits = -(15 + FFMIN(sce->ics.max_sfb, MAX_LTP_LONG_SFB));
+    float *C34 = &s->scoefs[128*0], *PCD = &s->scoefs[128*1];
+    float *PCD34 = &s->scoefs[128*2];
+    const int max_ltp = FFMIN(sce->ics.max_sfb, MAX_LTP_LONG_SFB);
+
+    if (sce->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+        if (sce->ics.ltp.lag) {
+            memset(&sce->ltp_state[0], 0, 3072*sizeof(sce->ltp_state[0]));
+            memset(&sce->ics.ltp, 0, sizeof(LongTermPrediction));
+        }
+        return;
+    }
+
+    if (!sce->ics.ltp.lag || s->lambda > 120.0f)
+        return;
+
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        start = 0;
+        for (g = 0;  g < sce->ics.num_swb; g++) {
+            int bits1 = 0, bits2 = 0;
+            float dist1 = 0.0f, dist2 = 0.0f;
+            if (w*16+g > max_ltp) {
+                start += sce->ics.swb_sizes[g];
+                continue;
+            }
+            for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                int bits_tmp1, bits_tmp2;
+                FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];
+                for (i = 0; i < sce->ics.swb_sizes[g]; i++)
+                    PCD[i] = sce->coeffs[start+(w+w2)*128+i] - sce->lcoeffs[start+(w+w2)*128+i];
+                s->abs_pow34(C34,  &sce->coeffs[start+(w+w2)*128],  sce->ics.swb_sizes[g]);
+                s->abs_pow34(PCD34, PCD, sce->ics.swb_sizes[g]);
+                dist1 += quantize_band_cost(s, &sce->coeffs[start+(w+w2)*128], C34, sce->ics.swb_sizes[g],
+                                            sce->sf_idx[(w+w2)*16+g], sce->band_type[(w+w2)*16+g],
+                                            s->lambda/band->threshold, INFINITY, &bits_tmp1, NULL, 0);
+                dist2 += quantize_band_cost(s, PCD, PCD34, sce->ics.swb_sizes[g],
+                                            sce->sf_idx[(w+w2)*16+g],
+                                            sce->band_type[(w+w2)*16+g],
+                                            s->lambda/band->threshold, INFINITY, &bits_tmp2, NULL, 0);
+                bits1 += bits_tmp1;
+                bits2 += bits_tmp2;
+            }
+            if (dist2 < dist1 && bits2 < bits1) {
+                for (w2 = 0; w2 < sce->ics.group_len[w]; w2++)
+                    for (i = 0; i < sce->ics.swb_sizes[g]; i++)
+                        sce->coeffs[start+(w+w2)*128+i] -= sce->lcoeffs[start+(w+w2)*128+i];
+                sce->ics.ltp.used[w*16+g] = 1;
+                saved_bits += bits1 - bits2;
+                count++;
+            }
+            start += sce->ics.swb_sizes[g];
+        }
+    }
+
+    sce->ics.ltp.present = !!count && (saved_bits >= 0);
+    sce->ics.predictor_present = !!sce->ics.ltp.present;
+
+    /* Reset any marked sfbs */
+    if (!sce->ics.ltp.present && !!count) {
+        for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+            start = 0;
+            for (g = 0;  g < sce->ics.num_swb; g++) {
+                if (sce->ics.ltp.used[w*16+g]) {
+                    for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                        for (i = 0; i < sce->ics.swb_sizes[g]; i++) {
+                            sce->coeffs[start+(w+w2)*128+i] += sce->lcoeffs[start+(w+w2)*128+i];
+                        }
+                    }
+                }
+                start += sce->ics.swb_sizes[g];
+            }
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_ltp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_ltp.h
new file mode 100644
index 000000000..727687842
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_ltp.h
@@ -0,0 +1,41 @@
+/*
+ * AAC encoder long term prediction extension
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder long term prediction extension
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENC_LTP_H
+#define AVCODEC_AACENC_LTP_H
+
+#include "aacenc.h"
+
+void ff_aac_encode_ltp_info(AACEncContext *s, SingleChannelElement *sce,
+                            int common_window);
+void ff_aac_update_ltp(AACEncContext *s, SingleChannelElement *sce);
+void ff_aac_adjust_common_ltp(AACEncContext *s, ChannelElement *cpe);
+void ff_aac_ltp_insert_new_frame(AACEncContext *s);
+void ff_aac_search_for_ltp(AACEncContext *s, SingleChannelElement *sce,
+                           int common_window);
+
+#endif /* AVCODEC_AACENC_LTP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_pred.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_pred.c
new file mode 100644
index 000000000..d111192f0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_pred.c
@@ -0,0 +1,347 @@
+/*
+ * AAC encoder main-type prediction
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder main-type prediction
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#include "aactab.h"
+#include "aacenc_pred.h"
+#include "aacenc_utils.h"
+#include "aacenc_is.h"            /* <- Needed for common window distortions */
+#include "aacenc_quantization.h"
+
+#define RESTORE_PRED(sce, sfb) \
+        if (sce->ics.prediction_used[sfb]) {\
+            sce->ics.prediction_used[sfb] = 0;\
+            sce->band_type[sfb] = sce->band_alt[sfb];\
+        }
+
+static inline float flt16_round(float pf)
+{
+    union av_intfloat32 tmp;
+    tmp.f = pf;
+    tmp.i = (tmp.i + 0x00008000U) & 0xFFFF0000U;
+    return tmp.f;
+}
+
+static inline float flt16_even(float pf)
+{
+    union av_intfloat32 tmp;
+    tmp.f = pf;
+    tmp.i = (tmp.i + 0x00007FFFU + (tmp.i & 0x00010000U >> 16)) & 0xFFFF0000U;
+    return tmp.f;
+}
+
+static inline float flt16_trunc(float pf)
+{
+    union av_intfloat32 pun;
+    pun.f = pf;
+    pun.i &= 0xFFFF0000U;
+    return pun.f;
+}
+
+static inline void predict(PredictorState *ps, float *coef, float *rcoef, int set)
+{
+    float k2;
+    const float a     = 0.953125; // 61.0 / 64
+    const float alpha = 0.90625;  // 29.0 / 32
+    const float   k1 = ps->k1;
+    const float   r0 = ps->r0,     r1 = ps->r1;
+    const float cor0 = ps->cor0, cor1 = ps->cor1;
+    const float var0 = ps->var0, var1 = ps->var1;
+    const float e0 = *coef - ps->x_est;
+    const float e1 = e0 - k1 * r0;
+
+    if (set)
+        *coef = e0;
+
+    ps->cor1 = flt16_trunc(alpha * cor1 + r1 * e1);
+    ps->var1 = flt16_trunc(alpha * var1 + 0.5f * (r1 * r1 + e1 * e1));
+    ps->cor0 = flt16_trunc(alpha * cor0 + r0 * e0);
+    ps->var0 = flt16_trunc(alpha * var0 + 0.5f * (r0 * r0 + e0 * e0));
+    ps->r1   = flt16_trunc(a * (r0 - k1 * e0));
+    ps->r0   = flt16_trunc(a * e0);
+
+    /* Prediction for next frame */
+    ps->k1   = ps->var0 > 1 ? ps->cor0 * flt16_even(a / ps->var0) : 0;
+    k2       = ps->var1 > 1 ? ps->cor1 * flt16_even(a / ps->var1) : 0;
+    *rcoef   = ps->x_est = flt16_round(ps->k1*ps->r0 + k2*ps->r1);
+}
+
+static inline void reset_predict_state(PredictorState *ps)
+{
+    ps->r0    = 0.0f;
+    ps->r1    = 0.0f;
+    ps->k1    = 0.0f;
+    ps->cor0  = 0.0f;
+    ps->cor1  = 0.0f;
+    ps->var0  = 1.0f;
+    ps->var1  = 1.0f;
+    ps->x_est = 0.0f;
+}
+
+static inline void reset_all_predictors(PredictorState *ps)
+{
+    int i;
+    for (i = 0; i < MAX_PREDICTORS; i++)
+        reset_predict_state(&ps[i]);
+}
+
+static inline void reset_predictor_group(SingleChannelElement *sce, int group_num)
+{
+    int i;
+    PredictorState *ps = sce->predictor_state;
+    for (i = group_num - 1; i < MAX_PREDICTORS; i += 30)
+        reset_predict_state(&ps[i]);
+}
+
+void ff_aac_apply_main_pred(AACEncContext *s, SingleChannelElement *sce)
+{
+    int sfb, k;
+    const int pmax = FFMIN(sce->ics.max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]);
+
+    if (sce->ics.window_sequence[0] != EIGHT_SHORT_SEQUENCE) {
+        for (sfb = 0; sfb < pmax; sfb++) {
+            for (k = sce->ics.swb_offset[sfb]; k < sce->ics.swb_offset[sfb + 1]; k++) {
+                predict(&sce->predictor_state[k], &sce->coeffs[k], &sce->prcoeffs[k],
+                        sce->ics.predictor_present && sce->ics.prediction_used[sfb]);
+            }
+        }
+        if (sce->ics.predictor_reset_group) {
+            reset_predictor_group(sce, sce->ics.predictor_reset_group);
+        }
+    } else {
+        reset_all_predictors(sce->predictor_state);
+    }
+}
+
+/* If inc = 0 you can check if this returns 0 to see if you can reset freely */
+static inline int update_counters(IndividualChannelStream *ics, int inc)
+{
+    int i;
+    for (i = 1; i < 31; i++) {
+        ics->predictor_reset_count[i] += inc;
+        if (ics->predictor_reset_count[i] > PRED_RESET_FRAME_MIN)
+            return i; /* Reset this immediately */
+    }
+    return 0;
+}
+
+void ff_aac_adjust_common_pred(AACEncContext *s, ChannelElement *cpe)
+{
+    int start, w, w2, g, i, count = 0;
+    SingleChannelElement *sce0 = &cpe->ch[0];
+    SingleChannelElement *sce1 = &cpe->ch[1];
+    const int pmax0 = FFMIN(sce0->ics.max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]);
+    const int pmax1 = FFMIN(sce1->ics.max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]);
+    const int pmax  = FFMIN(pmax0, pmax1);
+
+    if (!cpe->common_window ||
+        sce0->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE ||
+        sce1->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE)
+        return;
+
+    for (w = 0; w < sce0->ics.num_windows; w += sce0->ics.group_len[w]) {
+        start = 0;
+        for (g = 0; g < sce0->ics.num_swb; g++) {
+            int sfb = w*16+g;
+            int sum = sce0->ics.prediction_used[sfb] + sce1->ics.prediction_used[sfb];
+            float ener0 = 0.0f, ener1 = 0.0f, ener01 = 0.0f;
+            struct AACISError ph_err1, ph_err2, *erf;
+            if (sfb < PRED_SFB_START || sfb > pmax || sum != 2) {
+                RESTORE_PRED(sce0, sfb);
+                RESTORE_PRED(sce1, sfb);
+                start += sce0->ics.swb_sizes[g];
+                continue;
+            }
+            for (w2 = 0; w2 < sce0->ics.group_len[w]; w2++) {
+                for (i = 0; i < sce0->ics.swb_sizes[g]; i++) {
+                    float coef0 = sce0->pcoeffs[start+(w+w2)*128+i];
+                    float coef1 = sce1->pcoeffs[start+(w+w2)*128+i];
+                    ener0  += coef0*coef0;
+                    ener1  += coef1*coef1;
+                    ener01 += (coef0 + coef1)*(coef0 + coef1);
+                }
+            }
+            ph_err1 = ff_aac_is_encoding_err(s, cpe, start, w, g,
+                                             ener0, ener1, ener01, 1, -1);
+            ph_err2 = ff_aac_is_encoding_err(s, cpe, start, w, g,
+                                             ener0, ener1, ener01, 1, +1);
+            erf = ph_err1.error < ph_err2.error ? &ph_err1 : &ph_err2;
+            if (erf->pass) {
+                sce0->ics.prediction_used[sfb] = 1;
+                sce1->ics.prediction_used[sfb] = 1;
+                count++;
+            } else {
+                RESTORE_PRED(sce0, sfb);
+                RESTORE_PRED(sce1, sfb);
+            }
+            start += sce0->ics.swb_sizes[g];
+        }
+    }
+
+    sce1->ics.predictor_present = sce0->ics.predictor_present = !!count;
+}
+
+static void update_pred_resets(SingleChannelElement *sce)
+{
+    int i, max_group_id_c, max_frame = 0;
+    float avg_frame = 0.0f;
+    IndividualChannelStream *ics = &sce->ics;
+
+    /* Update the counters and immediately update any frame behind schedule */
+    if ((ics->predictor_reset_group = update_counters(&sce->ics, 1)))
+        return;
+
+    for (i = 1; i < 31; i++) {
+        /* Count-based */
+        if (ics->predictor_reset_count[i] > max_frame) {
+            max_group_id_c = i;
+            max_frame = ics->predictor_reset_count[i];
+        }
+        avg_frame = (ics->predictor_reset_count[i] + avg_frame)/2;
+    }
+
+    if (max_frame > PRED_RESET_MIN) {
+        ics->predictor_reset_group = max_group_id_c;
+    } else {
+        ics->predictor_reset_group = 0;
+    }
+}
+
+void ff_aac_search_for_pred(AACEncContext *s, SingleChannelElement *sce)
+{
+    int sfb, i, count = 0, cost_coeffs = 0, cost_pred = 0;
+    const int pmax = FFMIN(sce->ics.max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]);
+    float *O34  = &s->scoefs[128*0], *P34 = &s->scoefs[128*1];
+    float *SENT = &s->scoefs[128*2], *S34 = &s->scoefs[128*3];
+    float *QERR = &s->scoefs[128*4];
+
+    if (sce->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+        sce->ics.predictor_present = 0;
+        return;
+    }
+
+    if (!sce->ics.predictor_initialized) {
+        reset_all_predictors(sce->predictor_state);
+        sce->ics.predictor_initialized = 1;
+        memcpy(sce->prcoeffs, sce->coeffs, 1024*sizeof(float));
+        for (i = 1; i < 31; i++)
+            sce->ics.predictor_reset_count[i] = i;
+    }
+
+    update_pred_resets(sce);
+    memcpy(sce->band_alt, sce->band_type, sizeof(sce->band_type));
+
+    for (sfb = PRED_SFB_START; sfb < pmax; sfb++) {
+        int cost1, cost2, cb_p;
+        float dist1, dist2, dist_spec_err = 0.0f;
+        const int cb_n = sce->zeroes[sfb] ? 0 : sce->band_type[sfb];
+        const int cb_min = sce->zeroes[sfb] ? 0 : 1;
+        const int cb_max = sce->zeroes[sfb] ? 0 : RESERVED_BT;
+        const int start_coef = sce->ics.swb_offset[sfb];
+        const int num_coeffs = sce->ics.swb_offset[sfb + 1] - start_coef;
+        const FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[sfb];
+
+        if (start_coef + num_coeffs > MAX_PREDICTORS ||
+            (s->cur_channel && sce->band_type[sfb] >= INTENSITY_BT2) ||
+            sce->band_type[sfb] == NOISE_BT)
+            continue;
+
+        /* Normal coefficients */
+        s->abs_pow34(O34, &sce->coeffs[start_coef], num_coeffs);
+        dist1 = quantize_and_encode_band_cost(s, NULL, &sce->coeffs[start_coef], NULL,
+                                              O34, num_coeffs, sce->sf_idx[sfb],
+                                              cb_n, s->lambda / band->threshold, INFINITY, &cost1, NULL, 0);
+        cost_coeffs += cost1;
+
+        /* Encoded coefficients - needed for #bits, band type and quant. error */
+        for (i = 0; i < num_coeffs; i++)
+            SENT[i] = sce->coeffs[start_coef + i] - sce->prcoeffs[start_coef + i];
+        s->abs_pow34(S34, SENT, num_coeffs);
+        if (cb_n < RESERVED_BT)
+            cb_p = av_clip(find_min_book(find_max_val(1, num_coeffs, S34), sce->sf_idx[sfb]), cb_min, cb_max);
+        else
+            cb_p = cb_n;
+        quantize_and_encode_band_cost(s, NULL, SENT, QERR, S34, num_coeffs,
+                                      sce->sf_idx[sfb], cb_p, s->lambda / band->threshold, INFINITY,
+                                      &cost2, NULL, 0);
+
+        /* Reconstructed coefficients - needed for distortion measurements */
+        for (i = 0; i < num_coeffs; i++)
+            sce->prcoeffs[start_coef + i] += QERR[i] != 0.0f ? (sce->prcoeffs[start_coef + i] - QERR[i]) : 0.0f;
+        s->abs_pow34(P34, &sce->prcoeffs[start_coef], num_coeffs);
+        if (cb_n < RESERVED_BT)
+            cb_p = av_clip(find_min_book(find_max_val(1, num_coeffs, P34), sce->sf_idx[sfb]), cb_min, cb_max);
+        else
+            cb_p = cb_n;
+        dist2 = quantize_and_encode_band_cost(s, NULL, &sce->prcoeffs[start_coef], NULL,
+                                              P34, num_coeffs, sce->sf_idx[sfb],
+                                              cb_p, s->lambda / band->threshold, INFINITY, NULL, NULL, 0);
+        for (i = 0; i < num_coeffs; i++)
+            dist_spec_err += (O34[i] - P34[i])*(O34[i] - P34[i]);
+        dist_spec_err *= s->lambda / band->threshold;
+        dist2 += dist_spec_err;
+
+        if (dist2 <= dist1 && cb_p <= cb_n) {
+            cost_pred += cost2;
+            sce->ics.prediction_used[sfb] = 1;
+            sce->band_alt[sfb]  = cb_n;
+            sce->band_type[sfb] = cb_p;
+            count++;
+        } else {
+            cost_pred += cost1;
+            sce->band_alt[sfb] = cb_p;
+        }
+    }
+
+    if (count && cost_coeffs < cost_pred) {
+        count = 0;
+        for (sfb = PRED_SFB_START; sfb < pmax; sfb++)
+            RESTORE_PRED(sce, sfb);
+        memset(&sce->ics.prediction_used, 0, sizeof(sce->ics.prediction_used));
+    }
+
+    sce->ics.predictor_present = !!count;
+}
+
+/**
+ * Encoder predictors data.
+ */
+void ff_aac_encode_main_pred(AACEncContext *s, SingleChannelElement *sce)
+{
+    int sfb;
+    IndividualChannelStream *ics = &sce->ics;
+    const int pmax = FFMIN(ics->max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]);
+
+    if (s->profile != FF_PROFILE_AAC_MAIN ||
+        !ics->predictor_present)
+        return;
+
+    put_bits(&s->pb, 1, !!ics->predictor_reset_group);
+    if (ics->predictor_reset_group)
+        put_bits(&s->pb, 5, ics->predictor_reset_group);
+    for (sfb = 0; sfb < pmax; sfb++)
+        put_bits(&s->pb, 1, ics->prediction_used[sfb]);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_pred.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_pred.h
new file mode 100644
index 000000000..aa305f45a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_pred.h
@@ -0,0 +1,47 @@
+/*
+ * AAC encoder main-type prediction
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder main-type prediction
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENC_PRED_H
+#define AVCODEC_AACENC_PRED_H
+
+#include "aacenc.h"
+
+/* Every predictor group needs to get reset at least once in this many frames */
+#define PRED_RESET_FRAME_MIN 240
+
+/* Any frame with less than this amount of frames since last reset is ok */
+#define PRED_RESET_MIN 64
+
+/* Raise to filter any low frequency artifacts due to prediction */
+#define PRED_SFB_START 10
+
+void ff_aac_apply_main_pred(AACEncContext *s, SingleChannelElement *sce);
+void ff_aac_adjust_common_pred(AACEncContext *s, ChannelElement *cpe);
+void ff_aac_search_for_pred(AACEncContext *s, SingleChannelElement *sce);
+void ff_aac_encode_main_pred(AACEncContext *s, SingleChannelElement *sce);
+
+#endif /* AVCODEC_AACENC_PRED_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_quantization.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_quantization.h
new file mode 100644
index 000000000..fc5a46b87
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_quantization.h
@@ -0,0 +1,283 @@
+/*
+ * AAC encoder quantizer
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder quantizer
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENC_QUANTIZATION_H
+#define AVCODEC_AACENC_QUANTIZATION_H
+
+#include "aactab.h"
+#include "aacenc.h"
+#include "aacenctab.h"
+#include "aacenc_utils.h"
+
+/**
+ * Calculate rate distortion cost for quantizing with given codebook
+ *
+ * @return quantization distortion
+ */
+static av_always_inline float quantize_and_encode_band_cost_template(
+                                struct AACEncContext *s,
+                                PutBitContext *pb, const float *in, float *out,
+                                const float *scaled, int size, int scale_idx,
+                                int cb, const float lambda, const float uplim,
+                                int *bits, float *energy, int BT_ZERO, int BT_UNSIGNED,
+                                int BT_PAIR, int BT_ESC, int BT_NOISE, int BT_STEREO,
+                                const float ROUNDING)
+{
+    const int q_idx = POW_SF2_ZERO - scale_idx + SCALE_ONE_POS - SCALE_DIV_512;
+    const float Q   = ff_aac_pow2sf_tab [q_idx];
+    const float Q34 = ff_aac_pow34sf_tab[q_idx];
+    const float IQ  = ff_aac_pow2sf_tab [POW_SF2_ZERO + scale_idx - SCALE_ONE_POS + SCALE_DIV_512];
+    const float CLIPPED_ESCAPE = 165140.0f*IQ;
+    int i, j;
+    float cost = 0;
+    float qenergy = 0;
+    const int dim = BT_PAIR ? 2 : 4;
+    int resbits = 0;
+    int off;
+
+    if (BT_ZERO || BT_NOISE || BT_STEREO) {
+        for (i = 0; i < size; i++)
+            cost += in[i]*in[i];
+        if (bits)
+            *bits = 0;
+        if (energy)
+            *energy = qenergy;
+        if (out) {
+            for (i = 0; i < size; i += dim)
+                for (j = 0; j < dim; j++)
+                    out[i+j] = 0.0f;
+        }
+        return cost * lambda;
+    }
+    if (!scaled) {
+        s->abs_pow34(s->scoefs, in, size);
+        scaled = s->scoefs;
+    }
+    s->quant_bands(s->qcoefs, in, scaled, size, !BT_UNSIGNED, aac_cb_maxval[cb], Q34, ROUNDING);
+    if (BT_UNSIGNED) {
+        off = 0;
+    } else {
+        off = aac_cb_maxval[cb];
+    }
+    for (i = 0; i < size; i += dim) {
+        const float *vec;
+        int *quants = s->qcoefs + i;
+        int curidx = 0;
+        int curbits;
+        float quantized, rd = 0.0f;
+        for (j = 0; j < dim; j++) {
+            curidx *= aac_cb_range[cb];
+            curidx += quants[j] + off;
+        }
+        curbits =  ff_aac_spectral_bits[cb-1][curidx];
+        vec     = &ff_aac_codebook_vectors[cb-1][curidx*dim];
+        if (BT_UNSIGNED) {
+            for (j = 0; j < dim; j++) {
+                float t = fabsf(in[i+j]);
+                float di;
+                if (BT_ESC && vec[j] == 64.0f) { //FIXME: slow
+                    if (t >= CLIPPED_ESCAPE) {
+                        quantized = CLIPPED_ESCAPE;
+                        curbits += 21;
+                    } else {
+                        int c = av_clip_uintp2(quant(t, Q, ROUNDING), 13);
+                        quantized = c*cbrtf(c)*IQ;
+                        curbits += av_log2(c)*2 - 4 + 1;
+                    }
+                } else {
+                    quantized = vec[j]*IQ;
+                }
+                di = t - quantized;
+                if (out)
+                    out[i+j] = in[i+j] >= 0 ? quantized : -quantized;
+                if (vec[j] != 0.0f)
+                    curbits++;
+                qenergy += quantized*quantized;
+                rd += di*di;
+            }
+        } else {
+            for (j = 0; j < dim; j++) {
+                quantized = vec[j]*IQ;
+                qenergy += quantized*quantized;
+                if (out)
+                    out[i+j] = quantized;
+                rd += (in[i+j] - quantized)*(in[i+j] - quantized);
+            }
+        }
+        cost    += rd * lambda + curbits;
+        resbits += curbits;
+        if (cost >= uplim)
+            return uplim;
+        if (pb) {
+            put_bits(pb, ff_aac_spectral_bits[cb-1][curidx], ff_aac_spectral_codes[cb-1][curidx]);
+            if (BT_UNSIGNED)
+                for (j = 0; j < dim; j++)
+                    if (ff_aac_codebook_vectors[cb-1][curidx*dim+j] != 0.0f)
+                        put_bits(pb, 1, in[i+j] < 0.0f);
+            if (BT_ESC) {
+                for (j = 0; j < 2; j++) {
+                    if (ff_aac_codebook_vectors[cb-1][curidx*2+j] == 64.0f) {
+                        int coef = av_clip_uintp2(quant(fabsf(in[i+j]), Q, ROUNDING), 13);
+                        int len = av_log2(coef);
+
+                        put_bits(pb, len - 4 + 1, (1 << (len - 4 + 1)) - 2);
+                        put_sbits(pb, len, coef);
+                    }
+                }
+            }
+        }
+    }
+
+    if (bits)
+        *bits = resbits;
+    if (energy)
+        *energy = qenergy;
+    return cost;
+}
+
+static inline float quantize_and_encode_band_cost_NONE(struct AACEncContext *s, PutBitContext *pb,
+                                                const float *in, float *quant, const float *scaled,
+                                                int size, int scale_idx, int cb,
+                                                const float lambda, const float uplim,
+                                                int *bits, float *energy) {
+    av_assert0(0);
+    return 0.0f;
+}
+
+#define QUANTIZE_AND_ENCODE_BAND_COST_FUNC(NAME, BT_ZERO, BT_UNSIGNED, BT_PAIR, BT_ESC, BT_NOISE, BT_STEREO, ROUNDING) \
+static float quantize_and_encode_band_cost_ ## NAME(                                         \
+                                struct AACEncContext *s,                                     \
+                                PutBitContext *pb, const float *in, float *quant,            \
+                                const float *scaled, int size, int scale_idx,                \
+                                int cb, const float lambda, const float uplim,               \
+                                int *bits, float *energy) {                                  \
+    return quantize_and_encode_band_cost_template(                                           \
+                                s, pb, in, quant, scaled, size, scale_idx,                   \
+                                BT_ESC ? ESC_BT : cb, lambda, uplim, bits, energy,           \
+                                BT_ZERO, BT_UNSIGNED, BT_PAIR, BT_ESC, BT_NOISE, BT_STEREO,  \
+                                ROUNDING);                                                   \
+}
+
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(ZERO,  1, 0, 0, 0, 0, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(SQUAD, 0, 0, 0, 0, 0, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(UQUAD, 0, 1, 0, 0, 0, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(SPAIR, 0, 0, 1, 0, 0, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(UPAIR, 0, 1, 1, 0, 0, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(ESC,   0, 1, 1, 1, 0, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(ESC_RTZ, 0, 1, 1, 1, 0, 0, ROUND_TO_ZERO)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(NOISE, 0, 0, 0, 0, 1, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(STEREO,0, 0, 0, 0, 0, 1, ROUND_STANDARD)
+
+static float (*const quantize_and_encode_band_cost_arr[])(
+                                struct AACEncContext *s,
+                                PutBitContext *pb, const float *in, float *quant,
+                                const float *scaled, int size, int scale_idx,
+                                int cb, const float lambda, const float uplim,
+                                int *bits, float *energy) = {
+    quantize_and_encode_band_cost_ZERO,
+    quantize_and_encode_band_cost_SQUAD,
+    quantize_and_encode_band_cost_SQUAD,
+    quantize_and_encode_band_cost_UQUAD,
+    quantize_and_encode_band_cost_UQUAD,
+    quantize_and_encode_band_cost_SPAIR,
+    quantize_and_encode_band_cost_SPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_ESC,
+    quantize_and_encode_band_cost_NONE,     /* CB 12 doesn't exist */
+    quantize_and_encode_band_cost_NOISE,
+    quantize_and_encode_band_cost_STEREO,
+    quantize_and_encode_band_cost_STEREO,
+};
+
+static float (*const quantize_and_encode_band_cost_rtz_arr[])(
+                                struct AACEncContext *s,
+                                PutBitContext *pb, const float *in, float *quant,
+                                const float *scaled, int size, int scale_idx,
+                                int cb, const float lambda, const float uplim,
+                                int *bits, float *energy) = {
+    quantize_and_encode_band_cost_ZERO,
+    quantize_and_encode_band_cost_SQUAD,
+    quantize_and_encode_band_cost_SQUAD,
+    quantize_and_encode_band_cost_UQUAD,
+    quantize_and_encode_band_cost_UQUAD,
+    quantize_and_encode_band_cost_SPAIR,
+    quantize_and_encode_band_cost_SPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_ESC_RTZ,
+    quantize_and_encode_band_cost_NONE,     /* CB 12 doesn't exist */
+    quantize_and_encode_band_cost_NOISE,
+    quantize_and_encode_band_cost_STEREO,
+    quantize_and_encode_band_cost_STEREO,
+};
+
+#define quantize_and_encode_band_cost(                                  \
+                                s, pb, in, quant, scaled, size, scale_idx, cb, \
+                                lambda, uplim, bits, energy, rtz)               \
+    ((rtz) ? quantize_and_encode_band_cost_rtz_arr : quantize_and_encode_band_cost_arr)[cb]( \
+                                s, pb, in, quant, scaled, size, scale_idx, cb, \
+                                lambda, uplim, bits, energy)
+
+static inline float quantize_band_cost(struct AACEncContext *s, const float *in,
+                                const float *scaled, int size, int scale_idx,
+                                int cb, const float lambda, const float uplim,
+                                int *bits, float *energy, int rtz)
+{
+    return quantize_and_encode_band_cost(s, NULL, in, NULL, scaled, size, scale_idx,
+                                         cb, lambda, uplim, bits, energy, rtz);
+}
+
+static inline int quantize_band_cost_bits(struct AACEncContext *s, const float *in,
+                                const float *scaled, int size, int scale_idx,
+                                int cb, const float lambda, const float uplim,
+                                int *bits, float *energy, int rtz)
+{
+    int auxbits;
+    quantize_and_encode_band_cost(s, NULL, in, NULL, scaled, size, scale_idx,
+                                         cb, 0.0f, uplim, &auxbits, energy, rtz);
+    if (bits) {
+        *bits = auxbits;
+    }
+    return auxbits;
+}
+
+static inline void quantize_and_encode_band(struct AACEncContext *s, PutBitContext *pb,
+                                            const float *in, float *out, int size, int scale_idx,
+                                            int cb, const float lambda, int rtz)
+{
+    quantize_and_encode_band_cost(s, pb, in, out, NULL, size, scale_idx, cb, lambda,
+                                  INFINITY, NULL, NULL, rtz);
+}
+
+#include "aacenc_quantization_misc.h"
+
+#endif /* AVCODEC_AACENC_QUANTIZATION_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_quantization_misc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_quantization_misc.h
new file mode 100644
index 000000000..28676ca8d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_quantization_misc.h
@@ -0,0 +1,53 @@
+/*
+ * AAC encoder quantization
+ * Copyright (C) 2015 Claudio Freire
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder quantization misc reusable function templates
+ * @author Claudio Freire ( klaussfreire gmail com )
+ */
+
+#ifndef AVCODEC_AACENC_QUANTIZATION_MISC_H
+#define AVCODEC_AACENC_QUANTIZATION_MISC_H
+
+static inline float quantize_band_cost_cached(struct AACEncContext *s, int w, int g, const float *in,
+                                const float *scaled, int size, int scale_idx,
+                                int cb, const float lambda, const float uplim,
+                                int *bits, float *energy, int rtz)
+{
+    AACQuantizeBandCostCacheEntry *entry;
+    av_assert1(scale_idx >= 0 && scale_idx < 256);
+    entry = &s->quantize_band_cost_cache[scale_idx][w*16+g];
+    if (entry->generation != s->quantize_band_cost_cache_generation || entry->cb != cb || entry->rtz != rtz) {
+        entry->rd = quantize_band_cost(s, in, scaled, size, scale_idx,
+                                       cb, lambda, uplim, &entry->bits, &entry->energy, rtz);
+        entry->cb = cb;
+        entry->rtz = rtz;
+        entry->generation = s->quantize_band_cost_cache_generation;
+    }
+    if (bits)
+        *bits = entry->bits;
+    if (energy)
+        *energy = entry->energy;
+    return entry->rd;
+}
+
+#endif /* AVCODEC_AACENC_QUANTIZATION_MISC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_tns.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_tns.c
new file mode 100644
index 000000000..2ffe1f8de
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_tns.c
@@ -0,0 +1,215 @@
+/*
+ * AAC encoder TNS
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder temporal noise shaping
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#include "libavutil/libm.h"
+#include "aacenc.h"
+#include "aacenc_tns.h"
+#include "aactab.h"
+#include "aacenc_utils.h"
+#include "aacenc_quantization.h"
+
+/* Could be set to 3 to save an additional bit at the cost of little quality */
+#define TNS_Q_BITS 4
+
+/* Coefficient resolution in short windows */
+#define TNS_Q_BITS_IS8 4
+
+/* We really need the bits we save here elsewhere */
+#define TNS_ENABLE_COEF_COMPRESSION
+
+/* TNS will only be used if the LPC gain is within these margins */
+#define TNS_GAIN_THRESHOLD_LOW      1.4f
+#define TNS_GAIN_THRESHOLD_HIGH     1.16f*TNS_GAIN_THRESHOLD_LOW
+
+static inline int compress_coeffs(int *coef, int order, int c_bits)
+{
+    int i;
+    const int low_idx   = c_bits ?  4 : 2;
+    const int shift_val = c_bits ?  8 : 4;
+    const int high_idx  = c_bits ? 11 : 5;
+#ifndef TNS_ENABLE_COEF_COMPRESSION
+    return 0;
+#endif /* TNS_ENABLE_COEF_COMPRESSION */
+    for (i = 0; i < order; i++)
+        if (coef[i] >= low_idx && coef[i] <= high_idx)
+            return 0;
+    for (i = 0; i < order; i++)
+        coef[i] -= (coef[i] > high_idx) ? shift_val : 0;
+    return 1;
+}
+
+/**
+ * Encode TNS data.
+ * Coefficient compression is simply not lossless as it should be
+ * on any decoder tested and as such is not active.
+ */
+void ff_aac_encode_tns_info(AACEncContext *s, SingleChannelElement *sce)
+{
+    TemporalNoiseShaping *tns = &sce->tns;
+    int i, w, filt, coef_compress = 0, coef_len;
+    const int is8 = sce->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE;
+    const int c_bits = is8 ? TNS_Q_BITS_IS8 == 4 : TNS_Q_BITS == 4;
+
+    if (!sce->tns.present)
+        return;
+
+    for (i = 0; i < sce->ics.num_windows; i++) {
+        put_bits(&s->pb, 2 - is8, sce->tns.n_filt[i]);
+        if (!tns->n_filt[i])
+            continue;
+        put_bits(&s->pb, 1, c_bits);
+        for (filt = 0; filt < tns->n_filt[i]; filt++) {
+            put_bits(&s->pb, 6 - 2 * is8, tns->length[i][filt]);
+            put_bits(&s->pb, 5 - 2 * is8, tns->order[i][filt]);
+            if (!tns->order[i][filt])
+                continue;
+            put_bits(&s->pb, 1, tns->direction[i][filt]);
+            coef_compress = compress_coeffs(tns->coef_idx[i][filt],
+                                            tns->order[i][filt], c_bits);
+            put_bits(&s->pb, 1, coef_compress);
+            coef_len = c_bits + 3 - coef_compress;
+            for (w = 0; w < tns->order[i][filt]; w++)
+                put_bits(&s->pb, coef_len, tns->coef_idx[i][filt][w]);
+        }
+    }
+}
+
+/* Apply TNS filter */
+void ff_aac_apply_tns(AACEncContext *s, SingleChannelElement *sce)
+{
+    TemporalNoiseShaping *tns = &sce->tns;
+    IndividualChannelStream *ics = &sce->ics;
+    int w, filt, m, i, top, order, bottom, start, end, size, inc;
+    const int mmm = FFMIN(ics->tns_max_bands, ics->max_sfb);
+    float lpc[TNS_MAX_ORDER];
+
+    for (w = 0; w < ics->num_windows; w++) {
+        bottom = ics->num_swb;
+        for (filt = 0; filt < tns->n_filt[w]; filt++) {
+            top    = bottom;
+            bottom = FFMAX(0, top - tns->length[w][filt]);
+            order  = tns->order[w][filt];
+            if (order == 0)
+                continue;
+
+            // tns_decode_coef
+            compute_lpc_coefs(tns->coef[w][filt], order, lpc, 0, 0, 0);
+
+            start = ics->swb_offset[FFMIN(bottom, mmm)];
+            end   = ics->swb_offset[FFMIN(   top, mmm)];
+            if ((size = end - start) <= 0)
+                continue;
+            if (tns->direction[w][filt]) {
+                inc = -1;
+                start = end - 1;
+            } else {
+                inc = 1;
+            }
+            start += w * 128;
+
+            /* AR filter */
+            for (m = 0; m < size; m++, start += inc) {
+                for (i = 1; i <= FFMIN(m, order); i++) {
+                    sce->coeffs[start] += lpc[i-1]*sce->pcoeffs[start - i*inc];
+                }
+            }
+        }
+    }
+}
+
+/*
+ * c_bits - 1 if 4 bit coefficients, 0 if 3 bit coefficients
+ */
+static inline void quantize_coefs(double *coef, int *idx, float *lpc, int order,
+                                  int c_bits)
+{
+    int i;
+    const float *quant_arr = tns_tmp2_map[c_bits];
+    for (i = 0; i < order; i++) {
+        idx[i] = quant_array_idx(coef[i], quant_arr, c_bits ? 16 : 8);
+        lpc[i] = quant_arr[idx[i]];
+    }
+}
+
+/*
+ * 3 bits per coefficient with 8 short windows
+ */
+void ff_aac_search_for_tns(AACEncContext *s, SingleChannelElement *sce)
+{
+    TemporalNoiseShaping *tns = &sce->tns;
+    int w, g, count = 0;
+    double gain, coefs[MAX_LPC_ORDER];
+    const int mmm = FFMIN(sce->ics.tns_max_bands, sce->ics.max_sfb);
+    const int is8 = sce->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE;
+    const int c_bits = is8 ? TNS_Q_BITS_IS8 == 4 : TNS_Q_BITS == 4;
+    const int sfb_start = av_clip(tns_min_sfb[is8][s->samplerate_index], 0, mmm);
+    const int sfb_end   = av_clip(sce->ics.num_swb, 0, mmm);
+    const int order = is8 ? 7 : s->profile == FF_PROFILE_AAC_LOW ? 12 : TNS_MAX_ORDER;
+    const int slant = sce->ics.window_sequence[0] == LONG_STOP_SEQUENCE  ? 1 :
+                      sce->ics.window_sequence[0] == LONG_START_SEQUENCE ? 0 : 2;
+    const int sfb_len = sfb_end - sfb_start;
+    const int coef_len = sce->ics.swb_offset[sfb_end] - sce->ics.swb_offset[sfb_start];
+
+    if (coef_len <= 0 || sfb_len <= 0) {
+        sce->tns.present = 0;
+        return;
+    }
+
+    for (w = 0; w < sce->ics.num_windows; w++) {
+        float en[2] = {0.0f, 0.0f};
+        int oc_start = 0, os_start = 0;
+        int coef_start = sce->ics.swb_offset[sfb_start];
+
+        for (g = sfb_start; g < sce->ics.num_swb && g <= sfb_end; g++) {
+            FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[w*16+g];
+            if (g > sfb_start + (sfb_len/2))
+                en[1] += band->energy;
+            else
+                en[0] += band->energy;
+        }
+
+        /* LPC */
+        gain = ff_lpc_calc_ref_coefs_f(&s->lpc, &sce->coeffs[w*128 + coef_start],
+                                       coef_len, order, coefs);
+
+        if (!order || !isfinite(gain) || gain < TNS_GAIN_THRESHOLD_LOW || gain > TNS_GAIN_THRESHOLD_HIGH)
+            continue;
+
+        tns->n_filt[w] = is8 ? 1 : order != TNS_MAX_ORDER ? 2 : 3;
+        for (g = 0; g < tns->n_filt[w]; g++) {
+            tns->direction[w][g] = slant != 2 ? slant : en[g] < en[!g];
+            tns->order[w][g] = g < tns->n_filt[w] ? order/tns->n_filt[w] : order - oc_start;
+            tns->length[w][g] = g < tns->n_filt[w] ? sfb_len/tns->n_filt[w] : sfb_len - os_start;
+            quantize_coefs(&coefs[oc_start], tns->coef_idx[w][g], tns->coef[w][g],
+                            tns->order[w][g], c_bits);
+            oc_start += tns->order[w][g];
+            os_start += tns->length[w][g];
+        }
+        count++;
+    }
+    sce->tns.present = !!count;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_tns.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_tns.h
new file mode 100644
index 000000000..466738dd1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_tns.h
@@ -0,0 +1,37 @@
+/*
+ * AAC encoder TNS
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder temporal noise shaping
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENC_TNS_H
+#define AVCODEC_AACENC_TNS_H
+
+#include "aacenc.h"
+
+void ff_aac_encode_tns_info(AACEncContext *s, SingleChannelElement *sce);
+void ff_aac_apply_tns(AACEncContext *s, SingleChannelElement *sce);
+void ff_aac_search_for_tns(AACEncContext *s, SingleChannelElement *sce);
+
+#endif /* AVCODEC_AACENC_TNS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_utils.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_utils.h
new file mode 100644
index 000000000..bef4c103f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenc_utils.h
@@ -0,0 +1,279 @@
+/*
+ * AAC encoder utilities
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder utilities
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENC_UTILS_H
+#define AVCODEC_AACENC_UTILS_H
+
+#include "libavutil/ffmath.h"
+#include "aac.h"
+#include "aacenctab.h"
+#include "aactab.h"
+
+#define ROUND_STANDARD 0.4054f
+#define ROUND_TO_ZERO 0.1054f
+#define C_QUANT 0.4054f
+
+static inline void abs_pow34_v(float *out, const float *in, const int size)
+{
+    int i;
+    for (i = 0; i < size; i++) {
+        float a = fabsf(in[i]);
+        out[i] = sqrtf(a * sqrtf(a));
+    }
+}
+
+static inline float pos_pow34(float a)
+{
+    return sqrtf(a * sqrtf(a));
+}
+
+/**
+ * Quantize one coefficient.
+ * @return absolute value of the quantized coefficient
+ * @see 3GPP TS26.403 5.6.2 "Scalefactor determination"
+ */
+static inline int quant(float coef, const float Q, const float rounding)
+{
+    float a = coef * Q;
+    return sqrtf(a * sqrtf(a)) + rounding;
+}
+
+static inline void quantize_bands(int *out, const float *in, const float *scaled,
+                                  int size, int is_signed, int maxval, const float Q34,
+                                  const float rounding)
+{
+    int i;
+    for (i = 0; i < size; i++) {
+        float qc = scaled[i] * Q34;
+        int tmp = (int)FFMIN(qc + rounding, (float)maxval);
+        if (is_signed && in[i] < 0.0f) {
+            tmp = -tmp;
+        }
+        out[i] = tmp;
+    }
+}
+
+static inline float find_max_val(int group_len, int swb_size, const float *scaled)
+{
+    float maxval = 0.0f;
+    int w2, i;
+    for (w2 = 0; w2 < group_len; w2++) {
+        for (i = 0; i < swb_size; i++) {
+            maxval = FFMAX(maxval, scaled[w2*128+i]);
+        }
+    }
+    return maxval;
+}
+
+static inline int find_min_book(float maxval, int sf)
+{
+    float Q34 = ff_aac_pow34sf_tab[POW_SF2_ZERO - sf + SCALE_ONE_POS - SCALE_DIV_512];
+    int qmaxval, cb;
+    qmaxval = maxval * Q34 + C_QUANT;
+    if (qmaxval >= (FF_ARRAY_ELEMS(aac_maxval_cb)))
+        cb = 11;
+    else
+        cb = aac_maxval_cb[qmaxval];
+    return cb;
+}
+
+static inline float find_form_factor(int group_len, int swb_size, float thresh,
+                                     const float *scaled, float nzslope) {
+    const float iswb_size = 1.0f / swb_size;
+    const float iswb_sizem1 = 1.0f / (swb_size - 1);
+    const float ethresh = thresh;
+    float form = 0.0f, weight = 0.0f;
+    int w2, i;
+    for (w2 = 0; w2 < group_len; w2++) {
+        float e = 0.0f, e2 = 0.0f, var = 0.0f, maxval = 0.0f;
+        float nzl = 0;
+        for (i = 0; i < swb_size; i++) {
+            float s = fabsf(scaled[w2*128+i]);
+            maxval = FFMAX(maxval, s);
+            e += s;
+            e2 += s *= s;
+            /* We really don't want a hard non-zero-line count, since
+             * even below-threshold lines do add up towards band spectral power.
+             * So, fall steeply towards zero, but smoothly
+             */
+            if (s >= ethresh) {
+                nzl += 1.0f;
+            } else {
+                if (nzslope == 2.f)
+                    nzl += (s / ethresh) * (s / ethresh);
+                else
+                    nzl += ff_fast_powf(s / ethresh, nzslope);
+            }
+        }
+        if (e2 > thresh) {
+            float frm;
+            e *= iswb_size;
+
+            /** compute variance */
+            for (i = 0; i < swb_size; i++) {
+                float d = fabsf(scaled[w2*128+i]) - e;
+                var += d*d;
+            }
+            var = sqrtf(var * iswb_sizem1);
+
+            e2 *= iswb_size;
+            frm = e / FFMIN(e+4*var,maxval);
+            form += e2 * sqrtf(frm) / FFMAX(0.5f,nzl);
+            weight += e2;
+        }
+    }
+    if (weight > 0) {
+        return form / weight;
+    } else {
+        return 1.0f;
+    }
+}
+
+/** Return the minimum scalefactor where the quantized coef does not clip. */
+static inline uint8_t coef2minsf(float coef)
+{
+    return av_clip_uint8(log2f(coef)*4 - 69 + SCALE_ONE_POS - SCALE_DIV_512);
+}
+
+/** Return the maximum scalefactor where the quantized coef is not zero. */
+static inline uint8_t coef2maxsf(float coef)
+{
+    return av_clip_uint8(log2f(coef)*4 +  6 + SCALE_ONE_POS - SCALE_DIV_512);
+}
+
+/*
+ * Returns the closest possible index to an array of float values, given a value.
+ */
+static inline int quant_array_idx(const float val, const float *arr, const int num)
+{
+    int i, index = 0;
+    float quant_min_err = INFINITY;
+    for (i = 0; i < num; i++) {
+        float error = (val - arr[i])*(val - arr[i]);
+        if (error < quant_min_err) {
+            quant_min_err = error;
+            index = i;
+        }
+    }
+    return index;
+}
+
+/**
+ * approximates exp10f(-3.0f*(0.5f + 0.5f * cosf(FFMIN(b,15.5f) / 15.5f)))
+ */
+static av_always_inline float bval2bmax(float b)
+{
+    return 0.001f + 0.0035f * (b*b*b) / (15.5f*15.5f*15.5f);
+}
+
+/*
+ * Compute a nextband map to be used with SF delta constraint utilities.
+ * The nextband array should contain 128 elements, and positions that don't
+ * map to valid, nonzero bands of the form w*16+g (with w being the initial
+ * window of the window group, only) are left indetermined.
+ */
+static inline void ff_init_nextband_map(const SingleChannelElement *sce, uint8_t *nextband)
+{
+    unsigned char prevband = 0;
+    int w, g;
+    /** Just a safe default */
+    for (g = 0; g < 128; g++)
+        nextband[g] = g;
+
+    /** Now really navigate the nonzero band chain */
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        for (g = 0; g < sce->ics.num_swb; g++) {
+            if (!sce->zeroes[w*16+g] && sce->band_type[w*16+g] < RESERVED_BT)
+                prevband = nextband[prevband] = w*16+g;
+        }
+    }
+    nextband[prevband] = prevband; /* terminate */
+}
+
+/*
+ * Updates nextband to reflect a removed band (equivalent to
+ * calling ff_init_nextband_map after marking a band as zero)
+ */
+static inline void ff_nextband_remove(uint8_t *nextband, int prevband, int band)
+{
+    nextband[prevband] = nextband[band];
+}
+
+/*
+ * Checks whether the specified band could be removed without inducing
+ * scalefactor delta that violates SF delta encoding constraints.
+ * prev_sf has to be the scalefactor of the previous nonzero, nonspecial
+ * band, in encoding order, or negative if there was no such band.
+ */
+static inline int ff_sfdelta_can_remove_band(const SingleChannelElement *sce,
+    const uint8_t *nextband, int prev_sf, int band)
+{
+    return prev_sf >= 0
+        && sce->sf_idx[nextband[band]] >= (prev_sf - SCALE_MAX_DIFF)
+        && sce->sf_idx[nextband[band]] <= (prev_sf + SCALE_MAX_DIFF);
+}
+
+/*
+ * Checks whether the specified band's scalefactor could be replaced
+ * with another one without violating SF delta encoding constraints.
+ * prev_sf has to be the scalefactor of the previous nonzero, nonsepcial
+ * band, in encoding order, or negative if there was no such band.
+ */
+static inline int ff_sfdelta_can_replace(const SingleChannelElement *sce,
+    const uint8_t *nextband, int prev_sf, int new_sf, int band)
+{
+    return new_sf >= (prev_sf - SCALE_MAX_DIFF)
+        && new_sf <= (prev_sf + SCALE_MAX_DIFF)
+        && sce->sf_idx[nextband[band]] >= (new_sf - SCALE_MAX_DIFF)
+        && sce->sf_idx[nextband[band]] <= (new_sf + SCALE_MAX_DIFF);
+}
+
+/**
+ * linear congruential pseudorandom number generator
+ *
+ * @param   previous_val    pointer to the current state of the generator
+ *
+ * @return  Returns a 32-bit pseudorandom integer
+ */
+static av_always_inline int lcg_random(unsigned previous_val)
+{
+    union { unsigned u; int s; } v = { previous_val * 1664525u + 1013904223 };
+    return v.s;
+}
+
+#define ERROR_IF(cond, ...) \
+    if (cond) { \
+        av_log(avctx, AV_LOG_ERROR, __VA_ARGS__); \
+        return AVERROR(EINVAL); \
+    }
+
+#define WARN_IF(cond, ...) \
+    if (cond) { \
+        av_log(avctx, AV_LOG_WARNING, __VA_ARGS__); \
+    }
+
+#endif /* AVCODEC_AACENC_UTILS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacencdsp.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacencdsp.asm
new file mode 100644
index 000000000..97af571ec
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacencdsp.asm
@@ -0,0 +1,86 @@
+;******************************************************************************
+;* SIMD optimized AAC encoder DSP functions
+;*
+;* Copyright (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION_RODATA
+
+float_abs_mask: times 4 dd 0x7fffffff
+
+SECTION .text
+
+;*******************************************************************
+;void ff_abs_pow34(float *out, const float *in, const int size);
+;*******************************************************************
+INIT_XMM sse
+cglobal abs_pow34, 3, 3, 3, out, in, size
+    mova   m2, [float_abs_mask]
+    shl    sizeq, 2
+    add    inq, sizeq
+    add    outq, sizeq
+    neg    sizeq
+.loop:
+    andps  m0, m2, [inq+sizeq]
+    sqrtps m1, m0
+    mulps  m0, m1
+    sqrtps m0, m0
+    mova   [outq+sizeq], m0
+    add    sizeq, mmsize
+    jl    .loop
+    RET
+
+;*******************************************************************
+;void ff_aac_quantize_bands(int *out, const float *in, const float *scaled,
+;                           int size, int is_signed, int maxval, const float Q34,
+;                           const float rounding)
+;*******************************************************************
+INIT_XMM sse2
+cglobal aac_quantize_bands, 5, 5, 6, out, in, scaled, size, is_signed, maxval, Q34, rounding
+%if UNIX64 == 0
+    movss     m0, Q34m
+    movss     m1, roundingm
+    cvtsi2ss  m3, dword maxvalm
+%else
+    cvtsi2ss  m3, maxvald
+%endif
+    shufps    m0, m0, 0
+    shufps    m1, m1, 0
+    shufps    m3, m3, 0
+    shl       is_signedd, 31
+    movd      m4, is_signedd
+    shufps    m4, m4, 0
+    shl       sized,   2
+    add       inq, sizeq
+    add       outq, sizeq
+    add       scaledq, sizeq
+    neg       sizeq
+.loop:
+    mulps     m2, m0, [scaledq+sizeq]
+    addps     m2, m1
+    minps     m2, m3
+    andps     m5, m4, [inq+sizeq]
+    orps      m2, m5
+    cvttps2dq m2, m2
+    mova      [outq+sizeq], m2
+    add       sizeq, mmsize
+    jl       .loop
+    RET
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacencdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacencdsp_init.c
new file mode 100644
index 000000000..d761c3c5e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacencdsp_init.c
@@ -0,0 +1,43 @@
+/*
+ * AAC encoder assembly optimizations
+ * Copyright (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/float_dsp.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/aacenc.h"
+
+void ff_abs_pow34_sse(float *out, const float *in, const int size);
+
+void ff_aac_quantize_bands_sse2(int *out, const float *in, const float *scaled,
+                                int size, int is_signed, int maxval, const float Q34,
+                                const float rounding);
+
+av_cold void ff_aac_dsp_init_x86(AACEncContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE(cpu_flags))
+        s->abs_pow34   = ff_abs_pow34_sse;
+
+    if (EXTERNAL_SSE2(cpu_flags))
+        s->quant_bands = ff_aac_quantize_bands_sse2;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenctab.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenctab.c
new file mode 100644
index 000000000..f3d70fbe3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenctab.c
@@ -0,0 +1,108 @@
+/*
+ * AAC encoder data
+ * Copyright (c) 2015 Rostislav Pehlivanov ( atomnuker gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "aacenctab.h"
+
+static const uint8_t swb_size_128_96[] = {
+    4, 4, 4, 4, 4, 4, 8, 8, 8, 16, 28, 36
+};
+
+static const uint8_t swb_size_128_64[] = {
+    4, 4, 4, 4, 4, 4, 8, 8, 8, 16, 28, 36
+};
+
+static const uint8_t swb_size_128_48[] = {
+    4, 4, 4, 4, 4, 8, 8, 8, 12, 12, 12, 16, 16, 16
+};
+
+static const uint8_t swb_size_128_24[] = {
+    4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 12, 12, 16, 16, 20
+};
+
+static const uint8_t swb_size_128_16[] = {
+    4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 12, 12, 16, 20, 20
+};
+
+static const uint8_t swb_size_128_8[] = {
+    4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 12, 16, 20, 20
+};
+
+static const uint8_t swb_size_1024_96[] = {
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8,
+    12, 12, 12, 12, 12, 16, 16, 24, 28, 36, 44,
+    64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64
+};
+
+static const uint8_t swb_size_1024_64[] = {
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8,
+    12, 12, 12, 16, 16, 16, 20, 24, 24, 28, 36,
+    40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40
+};
+
+static const uint8_t swb_size_1024_48[] = {
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8,
+    12, 12, 12, 12, 16, 16, 20, 20, 24, 24, 28, 28,
+    32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
+    96
+};
+
+static const uint8_t swb_size_1024_32[] = {
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8,
+    12, 12, 12, 12, 16, 16, 20, 20, 24, 24, 28, 28,
+    32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32
+};
+
+static const uint8_t swb_size_1024_24[] = {
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    12, 12, 12, 12, 16, 16, 16, 20, 20, 24, 24, 28, 28,
+    32, 36, 36, 40, 44, 48, 52, 52, 64, 64, 64, 64, 64
+};
+
+static const uint8_t swb_size_1024_16[] = {
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    12, 12, 12, 12, 12, 12, 12, 12, 12, 16, 16, 16, 16, 20, 20, 20, 24, 24, 28, 28,
+    32, 36, 40, 40, 44, 48, 52, 56, 60, 64, 64, 64
+};
+
+static const uint8_t swb_size_1024_8[] = {
+    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+    16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 24, 24, 24, 28, 28,
+    32, 36, 36, 40, 44, 48, 52, 56, 60, 64, 80
+};
+
+const uint8_t *ff_aac_swb_size_128[] = {
+    swb_size_128_96, swb_size_128_96, swb_size_128_64,
+    swb_size_128_48, swb_size_128_48, swb_size_128_48,
+    swb_size_128_24, swb_size_128_24, swb_size_128_16,
+    swb_size_128_16, swb_size_128_16, swb_size_128_8,
+    swb_size_128_8
+};
+
+const uint8_t *ff_aac_swb_size_1024[] = {
+    swb_size_1024_96, swb_size_1024_96, swb_size_1024_64,
+    swb_size_1024_48, swb_size_1024_48, swb_size_1024_32,
+    swb_size_1024_24, swb_size_1024_24, swb_size_1024_16,
+    swb_size_1024_16, swb_size_1024_16, swb_size_1024_8,
+    swb_size_1024_8
+};
+
+const int ff_aac_swb_size_128_len  = FF_ARRAY_ELEMS(ff_aac_swb_size_128);
+const int ff_aac_swb_size_1024_len = FF_ARRAY_ELEMS(ff_aac_swb_size_1024);
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenctab.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenctab.h
new file mode 100644
index 000000000..64932d709
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacenctab.h
@@ -0,0 +1,139 @@
+/*
+ * AAC encoder data
+ * Copyright (c) 2015 Rostislav Pehlivanov ( atomnuker gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder data
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENCTAB_H
+#define AVCODEC_AACENCTAB_H
+
+#include "aac.h"
+
+/** Total number of usable codebooks **/
+#define CB_TOT 12
+
+/** Total number of codebooks, including special ones **/
+#define CB_TOT_ALL 15
+
+#define AAC_MAX_CHANNELS 16
+
+extern const uint8_t *ff_aac_swb_size_1024[];
+extern const int      ff_aac_swb_size_1024_len;
+extern const uint8_t *ff_aac_swb_size_128[];
+extern const int      ff_aac_swb_size_128_len;
+
+/* Supported layouts without using a PCE */
+static const int64_t aac_normal_chan_layouts[7] = {
+    AV_CH_LAYOUT_MONO,
+    AV_CH_LAYOUT_STEREO,
+    AV_CH_LAYOUT_SURROUND,
+    AV_CH_LAYOUT_4POINT0,
+    AV_CH_LAYOUT_5POINT0_BACK,
+    AV_CH_LAYOUT_5POINT1_BACK,
+    AV_CH_LAYOUT_7POINT1,
+};
+
+/** default channel configurations */
+static const uint8_t aac_chan_configs[AAC_MAX_CHANNELS][6] = {
+    {1, TYPE_SCE},                                         // 1 channel  - single channel element
+    {1, TYPE_CPE},                                         // 2 channels - channel pair
+    {2, TYPE_SCE, TYPE_CPE},                               // 3 channels - center + stereo
+    {3, TYPE_SCE, TYPE_CPE, TYPE_SCE},                     // 4 channels - front center + stereo + back center
+    {3, TYPE_SCE, TYPE_CPE, TYPE_CPE},                     // 5 channels - front center + stereo + back stereo
+    {4, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_LFE},           // 6 channels - front center + stereo + back stereo + LFE
+    {0},                                                   // 7 channels - invalid without PCE
+    {5, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_CPE, TYPE_LFE}, // 8 channels - front center + front stereo + side stereo + back stereo + LFE
+};
+
+/**
+ * Table to remap channels from libavcodec's default order to AAC order.
+ */
+static const uint8_t aac_chan_maps[AAC_MAX_CHANNELS][AAC_MAX_CHANNELS] = {
+    { 0 },
+    { 0, 1 },
+    { 2, 0, 1 },
+    { 2, 0, 1, 3 },
+    { 2, 0, 1, 3, 4 },
+    { 2, 0, 1, 4, 5, 3 },
+    { 0 },
+    { 2, 0, 1, 6, 7, 4, 5, 3 },
+};
+
+/* duplicated from avpriv_mpeg4audio_sample_rates to avoid shared build
+ * failures */
+static const int mpeg4audio_sample_rates[16] = {
+    96000, 88200, 64000, 48000, 44100, 32000,
+    24000, 22050, 16000, 12000, 11025, 8000, 7350
+};
+
+/** bits needed to code codebook run value for long windows */
+static const uint8_t run_value_bits_long[64] = {
+     5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,
+     5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5, 10,
+    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 15
+};
+
+/** bits needed to code codebook run value for short windows */
+static const uint8_t run_value_bits_short[16] = {
+    3, 3, 3, 3, 3, 3, 3, 6, 6, 6, 6, 6, 6, 6, 6, 9
+};
+
+/* TNS starting SFBs for long and short windows */
+static const uint8_t tns_min_sfb_short[16] = {
+    2, 2, 2, 3, 3, 4, 6, 6, 8, 10, 10, 12, 12, 12, 12, 12
+};
+
+static const uint8_t tns_min_sfb_long[16] = {
+    12, 13, 15, 16, 17, 20, 25, 26, 24, 28, 30, 31, 31, 31, 31, 31
+};
+
+static const uint8_t * const tns_min_sfb[2] = {
+    tns_min_sfb_long, tns_min_sfb_short
+};
+
+static const uint8_t * const run_value_bits[2] = {
+    run_value_bits_long, run_value_bits_short
+};
+
+/** Map to convert values from BandCodingPath index to a codebook index **/
+static const uint8_t aac_cb_out_map[CB_TOT_ALL]  = {0,1,2,3,4,5,6,7,8,9,10,11,13,14,15};
+/** Inverse map to convert from codebooks to BandCodingPath indices **/
+static const uint8_t aac_cb_in_map[CB_TOT_ALL+1] = {0,1,2,3,4,5,6,7,8,9,10,11,0,12,13,14};
+
+static const uint8_t aac_cb_range [12] = {0, 3, 3, 3, 3, 9, 9, 8, 8, 13, 13, 17};
+static const uint8_t aac_cb_maxval[12] = {0, 1, 1, 2, 2, 4, 4, 7, 7, 12, 12, 16};
+
+static const unsigned char aac_maxval_cb[] = {
+    0, 1, 3, 5, 5, 7, 7, 7, 9, 9, 9, 9, 9, 11
+};
+
+static const int aacenc_profiles[] = {
+    FF_PROFILE_AAC_MAIN,
+    FF_PROFILE_AAC_LOW,
+    FF_PROFILE_AAC_LTP,
+    FF_PROFILE_MPEG2_AAC_LOW,
+};
+
+#endif /* AVCODEC_AACENCTAB_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps.c
new file mode 100644
index 000000000..d5dca64b0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps.c
@@ -0,0 +1,1046 @@
+/*
+ * MPEG-4 Parametric Stereo decoding functions
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Note: Rounding-to-nearest used unless otherwise stated
+ *
+ */
+
+#include <stdint.h>
+#include "libavutil/common.h"
+#include "libavutil/mathematics.h"
+#include "avcodec.h"
+#include "get_bits.h"
+#include "aacps.h"
+#if USE_FIXED
+#include "aacps_fixed_tablegen.h"
+#else
+#include "libavutil/internal.h"
+#include "aacps_tablegen.h"
+#endif /* USE_FIXED */
+#include "aacpsdata.c"
+
+#define PS_BASELINE 0  ///< Operate in Baseline PS mode
+                       ///< Baseline implies 10 or 20 stereo bands,
+                       ///< mixing mode A, and no ipd/opd
+
+#define numQMFSlots 32 //numTimeSlots * RATE
+
+static const int8_t num_env_tab[2][4] = {
+    { 0, 1, 2, 4, },
+    { 1, 2, 3, 4, },
+};
+
+static const int8_t nr_iidicc_par_tab[] = {
+    10, 20, 34, 10, 20, 34,
+};
+
+static const int8_t nr_iidopd_par_tab[] = {
+     5, 11, 17,  5, 11, 17,
+};
+
+enum {
+    huff_iid_df1,
+    huff_iid_dt1,
+    huff_iid_df0,
+    huff_iid_dt0,
+    huff_icc_df,
+    huff_icc_dt,
+    huff_ipd_df,
+    huff_ipd_dt,
+    huff_opd_df,
+    huff_opd_dt,
+};
+
+static const int huff_iid[] = {
+    huff_iid_df0,
+    huff_iid_df1,
+    huff_iid_dt0,
+    huff_iid_dt1,
+};
+
+static VLC vlc_ps[10];
+
+#define READ_PAR_DATA(PAR, OFFSET, MASK, ERR_CONDITION) \
+/** \
+ * Read Inter-channel Intensity Difference/Inter-Channel Coherence/ \
+ * Inter-channel Phase Difference/Overall Phase Difference parameters from the \
+ * bitstream. \
+ * \
+ * @param avctx contains the current codec context \
+ * @param gb    pointer to the input bitstream \
+ * @param ps    pointer to the Parametric Stereo context \
+ * @param PAR   pointer to the parameter to be read \
+ * @param e     envelope to decode \
+ * @param dt    1: time delta-coded, 0: frequency delta-coded \
+ */ \
+static int read_ ## PAR ## _data(AVCodecContext *avctx, GetBitContext *gb, PSContext *ps, \
+                        int8_t (*PAR)[PS_MAX_NR_IIDICC], int table_idx, int e, int dt) \
+{ \
+    int b, num = ps->nr_ ## PAR ## _par; \
+    VLC_TYPE (*vlc_table)[2] = vlc_ps[table_idx].table; \
+    if (dt) { \
+        int e_prev = e ? e - 1 : ps->num_env_old - 1; \
+        e_prev = FFMAX(e_prev, 0); \
+        for (b = 0; b < num; b++) { \
+            int val = PAR[e_prev][b] + get_vlc2(gb, vlc_table, 9, 3) - OFFSET; \
+            if (MASK) val &= MASK; \
+            PAR[e][b] = val; \
+            if (ERR_CONDITION) \
+                goto err; \
+        } \
+    } else { \
+        int val = 0; \
+        for (b = 0; b < num; b++) { \
+            val += get_vlc2(gb, vlc_table, 9, 3) - OFFSET; \
+            if (MASK) val &= MASK; \
+            PAR[e][b] = val; \
+            if (ERR_CONDITION) \
+                goto err; \
+        } \
+    } \
+    return 0; \
+err: \
+    av_log(avctx, AV_LOG_ERROR, "illegal "#PAR"\n"); \
+    return AVERROR_INVALIDDATA; \
+}
+
+READ_PAR_DATA(iid,    huff_offset[table_idx],    0, FFABS(ps->iid_par[e][b]) > 7 + 8 * ps->iid_quant)
+READ_PAR_DATA(icc,    huff_offset[table_idx],    0, ps->icc_par[e][b] > 7U)
+READ_PAR_DATA(ipdopd,                      0, 0x07, 0)
+
+static int ps_read_extension_data(GetBitContext *gb, PSContext *ps, int ps_extension_id)
+{
+    int e;
+    int count = get_bits_count(gb);
+
+    if (ps_extension_id)
+        return 0;
+
+    ps->enable_ipdopd = get_bits1(gb);
+    if (ps->enable_ipdopd) {
+        for (e = 0; e < ps->num_env; e++) {
+            int dt = get_bits1(gb);
+            read_ipdopd_data(NULL, gb, ps, ps->ipd_par, dt ? huff_ipd_dt : huff_ipd_df, e, dt);
+            dt = get_bits1(gb);
+            read_ipdopd_data(NULL, gb, ps, ps->opd_par, dt ? huff_opd_dt : huff_opd_df, e, dt);
+        }
+    }
+    skip_bits1(gb);      //reserved_ps
+    return get_bits_count(gb) - count;
+}
+
+static void ipdopd_reset(int8_t *ipd_hist, int8_t *opd_hist)
+{
+    int i;
+    for (i = 0; i < PS_MAX_NR_IPDOPD; i++) {
+        opd_hist[i] = 0;
+        ipd_hist[i] = 0;
+    }
+}
+
+int AAC_RENAME(ff_ps_read_data)(AVCodecContext *avctx, GetBitContext *gb_host, PSContext *ps, int bits_left)
+{
+    int e;
+    int bit_count_start = get_bits_count(gb_host);
+    int header;
+    int bits_consumed;
+    GetBitContext gbc = *gb_host, *gb = &gbc;
+
+    header = get_bits1(gb);
+    if (header) {     //enable_ps_header
+        ps->enable_iid = get_bits1(gb);
+        if (ps->enable_iid) {
+            int iid_mode = get_bits(gb, 3);
+            if (iid_mode > 5) {
+                av_log(avctx, AV_LOG_ERROR, "iid_mode %d is reserved.\n",
+                       iid_mode);
+                goto err;
+            }
+            ps->nr_iid_par    = nr_iidicc_par_tab[iid_mode];
+            ps->iid_quant     = iid_mode > 2;
+            ps->nr_ipdopd_par = nr_iidopd_par_tab[iid_mode];
+        }
+        ps->enable_icc = get_bits1(gb);
+        if (ps->enable_icc) {
+            ps->icc_mode = get_bits(gb, 3);
+            if (ps->icc_mode > 5) {
+                av_log(avctx, AV_LOG_ERROR, "icc_mode %d is reserved.\n",
+                       ps->icc_mode);
+                goto err;
+            }
+            ps->nr_icc_par = nr_iidicc_par_tab[ps->icc_mode];
+        }
+        ps->enable_ext = get_bits1(gb);
+    }
+
+    ps->frame_class = get_bits1(gb);
+    ps->num_env_old = ps->num_env;
+    ps->num_env     = num_env_tab[ps->frame_class][get_bits(gb, 2)];
+
+    ps->border_position[0] = -1;
+    if (ps->frame_class) {
+        for (e = 1; e <= ps->num_env; e++) {
+            ps->border_position[e] = get_bits(gb, 5);
+            if (ps->border_position[e] < ps->border_position[e-1]) {
+                av_log(avctx, AV_LOG_ERROR, "border_position non monotone.\n");
+                goto err;
+            }
+        }
+    } else
+        for (e = 1; e <= ps->num_env; e++)
+            ps->border_position[e] = (e * numQMFSlots >> ff_log2_tab[ps->num_env]) - 1;
+
+    if (ps->enable_iid) {
+        for (e = 0; e < ps->num_env; e++) {
+            int dt = get_bits1(gb);
+            if (read_iid_data(avctx, gb, ps, ps->iid_par, huff_iid[2*dt+ps->iid_quant], e, dt))
+                goto err;
+        }
+    } else
+        memset(ps->iid_par, 0, sizeof(ps->iid_par));
+
+    if (ps->enable_icc)
+        for (e = 0; e < ps->num_env; e++) {
+            int dt = get_bits1(gb);
+            if (read_icc_data(avctx, gb, ps, ps->icc_par, dt ? huff_icc_dt : huff_icc_df, e, dt))
+                goto err;
+        }
+    else
+        memset(ps->icc_par, 0, sizeof(ps->icc_par));
+
+    if (ps->enable_ext) {
+        int cnt = get_bits(gb, 4);
+        if (cnt == 15) {
+            cnt += get_bits(gb, 8);
+        }
+        cnt *= 8;
+        while (cnt > 7) {
+            int ps_extension_id = get_bits(gb, 2);
+            cnt -= 2 + ps_read_extension_data(gb, ps, ps_extension_id);
+        }
+        if (cnt < 0) {
+            av_log(avctx, AV_LOG_ERROR, "ps extension overflow %d\n", cnt);
+            goto err;
+        }
+        skip_bits(gb, cnt);
+    }
+
+    ps->enable_ipdopd &= !PS_BASELINE;
+
+    //Fix up envelopes
+    if (!ps->num_env || ps->border_position[ps->num_env] < numQMFSlots - 1) {
+        //Create a fake envelope
+        int source = ps->num_env ? ps->num_env - 1 : ps->num_env_old - 1;
+        int b;
+        if (source >= 0 && source != ps->num_env) {
+            if (ps->enable_iid) {
+                memcpy(ps->iid_par+ps->num_env, ps->iid_par+source, sizeof(ps->iid_par[0]));
+            }
+            if (ps->enable_icc) {
+                memcpy(ps->icc_par+ps->num_env, ps->icc_par+source, sizeof(ps->icc_par[0]));
+            }
+            if (ps->enable_ipdopd) {
+                memcpy(ps->ipd_par+ps->num_env, ps->ipd_par+source, sizeof(ps->ipd_par[0]));
+                memcpy(ps->opd_par+ps->num_env, ps->opd_par+source, sizeof(ps->opd_par[0]));
+            }
+        }
+        if (ps->enable_iid){
+            for (b = 0; b < ps->nr_iid_par; b++) {
+                if (FFABS(ps->iid_par[ps->num_env][b]) > 7 + 8 * ps->iid_quant) {
+                    av_log(avctx, AV_LOG_ERROR, "iid_par invalid\n");
+                    goto err;
+                }
+            }
+        }
+        if (ps->enable_icc){
+            for (b = 0; b < ps->nr_iid_par; b++) {
+                if (ps->icc_par[ps->num_env][b] > 7U) {
+                    av_log(avctx, AV_LOG_ERROR, "icc_par invalid\n");
+                    goto err;
+                }
+            }
+        }
+        ps->num_env++;
+        ps->border_position[ps->num_env] = numQMFSlots - 1;
+    }
+
+
+    ps->is34bands_old = ps->is34bands;
+    if (!PS_BASELINE && (ps->enable_iid || ps->enable_icc))
+        ps->is34bands = (ps->enable_iid && ps->nr_iid_par == 34) ||
+                        (ps->enable_icc && ps->nr_icc_par == 34);
+
+    //Baseline
+    if (!ps->enable_ipdopd) {
+        memset(ps->ipd_par, 0, sizeof(ps->ipd_par));
+        memset(ps->opd_par, 0, sizeof(ps->opd_par));
+    }
+
+    if (header)
+        ps->start = 1;
+
+    bits_consumed = get_bits_count(gb) - bit_count_start;
+    if (bits_consumed <= bits_left) {
+        skip_bits_long(gb_host, bits_consumed);
+        return bits_consumed;
+    }
+    av_log(avctx, AV_LOG_ERROR, "Expected to read %d PS bits actually read %d.\n", bits_left, bits_consumed);
+err:
+    ps->start = 0;
+    skip_bits_long(gb_host, bits_left);
+    memset(ps->iid_par, 0, sizeof(ps->iid_par));
+    memset(ps->icc_par, 0, sizeof(ps->icc_par));
+    memset(ps->ipd_par, 0, sizeof(ps->ipd_par));
+    memset(ps->opd_par, 0, sizeof(ps->opd_par));
+    return bits_left;
+}
+
+/** Split one subband into 2 subsubbands with a symmetric real filter.
+ * The filter must have its non-center even coefficients equal to zero. */
+static void hybrid2_re(INTFLOAT (*in)[2], INTFLOAT (*out)[32][2], const INTFLOAT filter[8], int len, int reverse)
+{
+    int i, j;
+    for (i = 0; i < len; i++, in++) {
+        INT64FLOAT re_in = AAC_MUL31(filter[6], in[6][0]); //real inphase
+        INT64FLOAT re_op = 0.0f;                          //real out of phase
+        INT64FLOAT im_in = AAC_MUL31(filter[6], in[6][1]); //imag inphase
+        INT64FLOAT im_op = 0.0f;                          //imag out of phase
+        for (j = 0; j < 6; j += 2) {
+            re_op += (INT64FLOAT)filter[j+1] * (in[j+1][0] + in[12-j-1][0]);
+            im_op += (INT64FLOAT)filter[j+1] * (in[j+1][1] + in[12-j-1][1]);
+        }
+
+#if USE_FIXED
+        re_op = (re_op + 0x40000000) >> 31;
+        im_op = (im_op + 0x40000000) >> 31;
+#endif /* USE_FIXED */
+
+        out[ reverse][i][0] = (INTFLOAT)(re_in + re_op);
+        out[ reverse][i][1] = (INTFLOAT)(im_in + im_op);
+        out[!reverse][i][0] = (INTFLOAT)(re_in - re_op);
+        out[!reverse][i][1] = (INTFLOAT)(im_in - im_op);
+    }
+}
+
+/** Split one subband into 6 subsubbands with a complex filter */
+static void hybrid6_cx(PSDSPContext *dsp, INTFLOAT (*in)[2], INTFLOAT (*out)[32][2],
+                       TABLE_CONST INTFLOAT (*filter)[8][2], int len)
+{
+    int i;
+    int N = 8;
+    LOCAL_ALIGNED_16(INTFLOAT, temp, [8], [2]);
+
+    for (i = 0; i < len; i++, in++) {
+        dsp->hybrid_analysis(temp, in, (const INTFLOAT (*)[8][2]) filter, 1, N);
+        out[0][i][0] = temp[6][0];
+        out[0][i][1] = temp[6][1];
+        out[1][i][0] = temp[7][0];
+        out[1][i][1] = temp[7][1];
+        out[2][i][0] = temp[0][0];
+        out[2][i][1] = temp[0][1];
+        out[3][i][0] = temp[1][0];
+        out[3][i][1] = temp[1][1];
+        out[4][i][0] = temp[2][0] + temp[5][0];
+        out[4][i][1] = temp[2][1] + temp[5][1];
+        out[5][i][0] = temp[3][0] + temp[4][0];
+        out[5][i][1] = temp[3][1] + temp[4][1];
+    }
+}
+
+static void hybrid4_8_12_cx(PSDSPContext *dsp,
+                            INTFLOAT (*in)[2], INTFLOAT (*out)[32][2],
+                            TABLE_CONST INTFLOAT (*filter)[8][2], int N, int len)
+{
+    int i;
+
+    for (i = 0; i < len; i++, in++) {
+        dsp->hybrid_analysis(out[0] + i, in, (const INTFLOAT (*)[8][2]) filter, 32, N);
+    }
+}
+
+static void hybrid_analysis(PSDSPContext *dsp, INTFLOAT out[91][32][2],
+                            INTFLOAT in[5][44][2], INTFLOAT L[2][38][64],
+                            int is34, int len)
+{
+    int i, j;
+    for (i = 0; i < 5; i++) {
+        for (j = 0; j < 38; j++) {
+            in[i][j+6][0] = L[0][j][i];
+            in[i][j+6][1] = L[1][j][i];
+        }
+    }
+    if (is34) {
+        hybrid4_8_12_cx(dsp, in[0], out,    f34_0_12, 12, len);
+        hybrid4_8_12_cx(dsp, in[1], out+12, f34_1_8,   8, len);
+        hybrid4_8_12_cx(dsp, in[2], out+20, f34_2_4,   4, len);
+        hybrid4_8_12_cx(dsp, in[3], out+24, f34_2_4,   4, len);
+        hybrid4_8_12_cx(dsp, in[4], out+28, f34_2_4,   4, len);
+        dsp->hybrid_analysis_ileave(out + 27, L, 5, len);
+    } else {
+        hybrid6_cx(dsp, in[0], out, f20_0_8, len);
+        hybrid2_re(in[1], out+6, g1_Q2, len, 1);
+        hybrid2_re(in[2], out+8, g1_Q2, len, 0);
+        dsp->hybrid_analysis_ileave(out + 7, L, 3, len);
+    }
+    //update in_buf
+    for (i = 0; i < 5; i++) {
+        memcpy(in[i], in[i]+32, 6 * sizeof(in[i][0]));
+    }
+}
+
+static void hybrid_synthesis(PSDSPContext *dsp, INTFLOAT out[2][38][64],
+                             INTFLOAT in[91][32][2], int is34, int len)
+{
+    int i, n;
+    if (is34) {
+        for (n = 0; n < len; n++) {
+            memset(out[0][n], 0, 5*sizeof(out[0][n][0]));
+            memset(out[1][n], 0, 5*sizeof(out[1][n][0]));
+            for (i = 0; i < 12; i++) {
+                out[0][n][0] += in[   i][n][0];
+                out[1][n][0] += in[   i][n][1];
+            }
+            for (i = 0; i < 8; i++) {
+                out[0][n][1] += in[12+i][n][0];
+                out[1][n][1] += in[12+i][n][1];
+            }
+            for (i = 0; i < 4; i++) {
+                out[0][n][2] += in[20+i][n][0];
+                out[1][n][2] += in[20+i][n][1];
+                out[0][n][3] += in[24+i][n][0];
+                out[1][n][3] += in[24+i][n][1];
+                out[0][n][4] += in[28+i][n][0];
+                out[1][n][4] += in[28+i][n][1];
+            }
+        }
+        dsp->hybrid_synthesis_deint(out, in + 27, 5, len);
+    } else {
+        for (n = 0; n < len; n++) {
+            out[0][n][0] = in[0][n][0] + in[1][n][0] + in[2][n][0] +
+                           in[3][n][0] + in[4][n][0] + in[5][n][0];
+            out[1][n][0] = in[0][n][1] + in[1][n][1] + in[2][n][1] +
+                           in[3][n][1] + in[4][n][1] + in[5][n][1];
+            out[0][n][1] = in[6][n][0] + in[7][n][0];
+            out[1][n][1] = in[6][n][1] + in[7][n][1];
+            out[0][n][2] = in[8][n][0] + in[9][n][0];
+            out[1][n][2] = in[8][n][1] + in[9][n][1];
+        }
+        dsp->hybrid_synthesis_deint(out, in + 7, 3, len);
+    }
+}
+
+/// All-pass filter decay slope
+#define DECAY_SLOPE      Q30(0.05f)
+/// Number of frequency bands that can be addressed by the parameter index, b(k)
+static const int   NR_PAR_BANDS[]      = { 20, 34 };
+static const int   NR_IPDOPD_BANDS[]   = { 11, 17 };
+/// Number of frequency bands that can be addressed by the sub subband index, k
+static const int   NR_BANDS[]          = { 71, 91 };
+/// Start frequency band for the all-pass filter decay slope
+static const int   DECAY_CUTOFF[]      = { 10, 32 };
+/// Number of all-pass filer bands
+static const int   NR_ALLPASS_BANDS[]  = { 30, 50 };
+/// First stereo band using the short one sample delay
+static const int   SHORT_DELAY_BAND[]  = { 42, 62 };
+
+/** Table 8.46 */
+static void map_idx_10_to_20(int8_t *par_mapped, const int8_t *par, int full)
+{
+    int b;
+    if (full)
+        b = 9;
+    else {
+        b = 4;
+        par_mapped[10] = 0;
+    }
+    for (; b >= 0; b--) {
+        par_mapped[2*b+1] = par_mapped[2*b] = par[b];
+    }
+}
+
+static void map_idx_34_to_20(int8_t *par_mapped, const int8_t *par, int full)
+{
+    par_mapped[ 0] = (2*par[ 0] +   par[ 1]) / 3;
+    par_mapped[ 1] = (  par[ 1] + 2*par[ 2]) / 3;
+    par_mapped[ 2] = (2*par[ 3] +   par[ 4]) / 3;
+    par_mapped[ 3] = (  par[ 4] + 2*par[ 5]) / 3;
+    par_mapped[ 4] = (  par[ 6] +   par[ 7]) / 2;
+    par_mapped[ 5] = (  par[ 8] +   par[ 9]) / 2;
+    par_mapped[ 6] =    par[10];
+    par_mapped[ 7] =    par[11];
+    par_mapped[ 8] = (  par[12] +   par[13]) / 2;
+    par_mapped[ 9] = (  par[14] +   par[15]) / 2;
+    par_mapped[10] =    par[16];
+    if (full) {
+        par_mapped[11] =    par[17];
+        par_mapped[12] =    par[18];
+        par_mapped[13] =    par[19];
+        par_mapped[14] = (  par[20] +   par[21]) / 2;
+        par_mapped[15] = (  par[22] +   par[23]) / 2;
+        par_mapped[16] = (  par[24] +   par[25]) / 2;
+        par_mapped[17] = (  par[26] +   par[27]) / 2;
+        par_mapped[18] = (  par[28] +   par[29] +   par[30] +   par[31]) / 4;
+        par_mapped[19] = (  par[32] +   par[33]) / 2;
+    }
+}
+
+static void map_val_34_to_20(INTFLOAT par[PS_MAX_NR_IIDICC])
+{
+#if USE_FIXED
+    par[ 0] = (int)(((int64_t)(par[ 0] + (unsigned)(par[ 1]>>1)) * 1431655765 + \
+                      0x40000000) >> 31);
+    par[ 1] = (int)(((int64_t)((par[ 1]>>1) + (unsigned)par[ 2]) * 1431655765 + \
+                      0x40000000) >> 31);
+    par[ 2] = (int)(((int64_t)(par[ 3] + (unsigned)(par[ 4]>>1)) * 1431655765 + \
+                      0x40000000) >> 31);
+    par[ 3] = (int)(((int64_t)((par[ 4]>>1) + (unsigned)par[ 5]) * 1431655765 + \
+                      0x40000000) >> 31);
+#else
+    par[ 0] = (2*par[ 0] +   par[ 1]) * 0.33333333f;
+    par[ 1] = (  par[ 1] + 2*par[ 2]) * 0.33333333f;
+    par[ 2] = (2*par[ 3] +   par[ 4]) * 0.33333333f;
+    par[ 3] = (  par[ 4] + 2*par[ 5]) * 0.33333333f;
+#endif /* USE_FIXED */
+    par[ 4] = AAC_HALF_SUM(par[ 6], par[ 7]);
+    par[ 5] = AAC_HALF_SUM(par[ 8], par[ 9]);
+    par[ 6] =    par[10];
+    par[ 7] =    par[11];
+    par[ 8] = AAC_HALF_SUM(par[12], par[13]);
+    par[ 9] = AAC_HALF_SUM(par[14], par[15]);
+    par[10] =    par[16];
+    par[11] =    par[17];
+    par[12] =    par[18];
+    par[13] =    par[19];
+    par[14] = AAC_HALF_SUM(par[20], par[21]);
+    par[15] = AAC_HALF_SUM(par[22], par[23]);
+    par[16] = AAC_HALF_SUM(par[24], par[25]);
+    par[17] = AAC_HALF_SUM(par[26], par[27]);
+#if USE_FIXED
+    par[18] = (((par[28]+2)>>2) + ((par[29]+2)>>2) + ((par[30]+2)>>2) + ((par[31]+2)>>2));
+#else
+    par[18] = (  par[28] +   par[29] +   par[30] +   par[31]) * 0.25f;
+#endif /* USE_FIXED */
+    par[19] = AAC_HALF_SUM(par[32], par[33]);
+}
+
+static void map_idx_10_to_34(int8_t *par_mapped, const int8_t *par, int full)
+{
+    if (full) {
+        par_mapped[33] = par[9];
+        par_mapped[32] = par[9];
+        par_mapped[31] = par[9];
+        par_mapped[30] = par[9];
+        par_mapped[29] = par[9];
+        par_mapped[28] = par[9];
+        par_mapped[27] = par[8];
+        par_mapped[26] = par[8];
+        par_mapped[25] = par[8];
+        par_mapped[24] = par[8];
+        par_mapped[23] = par[7];
+        par_mapped[22] = par[7];
+        par_mapped[21] = par[7];
+        par_mapped[20] = par[7];
+        par_mapped[19] = par[6];
+        par_mapped[18] = par[6];
+        par_mapped[17] = par[5];
+        par_mapped[16] = par[5];
+    } else {
+        par_mapped[16] =      0;
+    }
+    par_mapped[15] = par[4];
+    par_mapped[14] = par[4];
+    par_mapped[13] = par[4];
+    par_mapped[12] = par[4];
+    par_mapped[11] = par[3];
+    par_mapped[10] = par[3];
+    par_mapped[ 9] = par[2];
+    par_mapped[ 8] = par[2];
+    par_mapped[ 7] = par[2];
+    par_mapped[ 6] = par[2];
+    par_mapped[ 5] = par[1];
+    par_mapped[ 4] = par[1];
+    par_mapped[ 3] = par[1];
+    par_mapped[ 2] = par[0];
+    par_mapped[ 1] = par[0];
+    par_mapped[ 0] = par[0];
+}
+
+static void map_idx_20_to_34(int8_t *par_mapped, const int8_t *par, int full)
+{
+    if (full) {
+        par_mapped[33] =  par[19];
+        par_mapped[32] =  par[19];
+        par_mapped[31] =  par[18];
+        par_mapped[30] =  par[18];
+        par_mapped[29] =  par[18];
+        par_mapped[28] =  par[18];
+        par_mapped[27] =  par[17];
+        par_mapped[26] =  par[17];
+        par_mapped[25] =  par[16];
+        par_mapped[24] =  par[16];
+        par_mapped[23] =  par[15];
+        par_mapped[22] =  par[15];
+        par_mapped[21] =  par[14];
+        par_mapped[20] =  par[14];
+        par_mapped[19] =  par[13];
+        par_mapped[18] =  par[12];
+        par_mapped[17] =  par[11];
+    }
+    par_mapped[16] =  par[10];
+    par_mapped[15] =  par[ 9];
+    par_mapped[14] =  par[ 9];
+    par_mapped[13] =  par[ 8];
+    par_mapped[12] =  par[ 8];
+    par_mapped[11] =  par[ 7];
+    par_mapped[10] =  par[ 6];
+    par_mapped[ 9] =  par[ 5];
+    par_mapped[ 8] =  par[ 5];
+    par_mapped[ 7] =  par[ 4];
+    par_mapped[ 6] =  par[ 4];
+    par_mapped[ 5] =  par[ 3];
+    par_mapped[ 4] = (par[ 2] + par[ 3]) / 2;
+    par_mapped[ 3] =  par[ 2];
+    par_mapped[ 2] =  par[ 1];
+    par_mapped[ 1] = (par[ 0] + par[ 1]) / 2;
+    par_mapped[ 0] =  par[ 0];
+}
+
+static void map_val_20_to_34(INTFLOAT par[PS_MAX_NR_IIDICC])
+{
+    par[33] =  par[19];
+    par[32] =  par[19];
+    par[31] =  par[18];
+    par[30] =  par[18];
+    par[29] =  par[18];
+    par[28] =  par[18];
+    par[27] =  par[17];
+    par[26] =  par[17];
+    par[25] =  par[16];
+    par[24] =  par[16];
+    par[23] =  par[15];
+    par[22] =  par[15];
+    par[21] =  par[14];
+    par[20] =  par[14];
+    par[19] =  par[13];
+    par[18] =  par[12];
+    par[17] =  par[11];
+    par[16] =  par[10];
+    par[15] =  par[ 9];
+    par[14] =  par[ 9];
+    par[13] =  par[ 8];
+    par[12] =  par[ 8];
+    par[11] =  par[ 7];
+    par[10] =  par[ 6];
+    par[ 9] =  par[ 5];
+    par[ 8] =  par[ 5];
+    par[ 7] =  par[ 4];
+    par[ 6] =  par[ 4];
+    par[ 5] =  par[ 3];
+    par[ 4] = AAC_HALF_SUM(par[ 2], par[ 3]);
+    par[ 3] =  par[ 2];
+    par[ 2] =  par[ 1];
+    par[ 1] = AAC_HALF_SUM(par[ 0], par[ 1]);
+}
+
+static void decorrelation(PSContext *ps, INTFLOAT (*out)[32][2], const INTFLOAT (*s)[32][2], int is34)
+{
+    LOCAL_ALIGNED_16(INTFLOAT, power, [34], [PS_QMF_TIME_SLOTS]);
+    LOCAL_ALIGNED_16(INTFLOAT, transient_gain, [34], [PS_QMF_TIME_SLOTS]);
+    INTFLOAT *peak_decay_nrg = ps->peak_decay_nrg;
+    INTFLOAT *power_smooth = ps->power_smooth;
+    INTFLOAT *peak_decay_diff_smooth = ps->peak_decay_diff_smooth;
+    INTFLOAT (*delay)[PS_QMF_TIME_SLOTS + PS_MAX_DELAY][2] = ps->delay;
+    INTFLOAT (*ap_delay)[PS_AP_LINKS][PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2] = ps->ap_delay;
+#if !USE_FIXED
+    const float transient_impact  = 1.5f;
+    const float a_smooth          = 0.25f; ///< Smoothing coefficient
+#endif /* USE_FIXED */
+    const int8_t *k_to_i = is34 ? k_to_i_34 : k_to_i_20;
+    int i, k, m, n;
+    int n0 = 0, nL = 32;
+    const INTFLOAT peak_decay_factor = Q31(0.76592833836465f);
+
+    memset(power, 0, 34 * sizeof(*power));
+
+    if (is34 != ps->is34bands_old) {
+        memset(ps->peak_decay_nrg,         0, sizeof(ps->peak_decay_nrg));
+        memset(ps->power_smooth,           0, sizeof(ps->power_smooth));
+        memset(ps->peak_decay_diff_smooth, 0, sizeof(ps->peak_decay_diff_smooth));
+        memset(ps->delay,                  0, sizeof(ps->delay));
+        memset(ps->ap_delay,               0, sizeof(ps->ap_delay));
+    }
+
+    for (k = 0; k < NR_BANDS[is34]; k++) {
+        int i = k_to_i[k];
+        ps->dsp.add_squares(power[i], s[k], nL - n0);
+    }
+
+    //Transient detection
+#if USE_FIXED
+    for (i = 0; i < NR_PAR_BANDS[is34]; i++) {
+        for (n = n0; n < nL; n++) {
+            int decayed_peak;
+            decayed_peak = (int)(((int64_t)peak_decay_factor * \
+                                           peak_decay_nrg[i] + 0x40000000) >> 31);
+            peak_decay_nrg[i] = FFMAX(decayed_peak, power[i][n]);
+            power_smooth[i] += (power[i][n] + 2LL - power_smooth[i]) >> 2;
+            peak_decay_diff_smooth[i] += (peak_decay_nrg[i] + 2LL - power[i][n] - \
+                                          peak_decay_diff_smooth[i]) >> 2;
+
+            if (peak_decay_diff_smooth[i]) {
+                transient_gain[i][n] = FFMIN(power_smooth[i]*43691LL / peak_decay_diff_smooth[i], 1<<16);
+            } else
+                transient_gain[i][n] = 1 << 16;
+        }
+    }
+#else
+    for (i = 0; i < NR_PAR_BANDS[is34]; i++) {
+        for (n = n0; n < nL; n++) {
+            float decayed_peak = peak_decay_factor * peak_decay_nrg[i];
+            float denom;
+            peak_decay_nrg[i] = FFMAX(decayed_peak, power[i][n]);
+            power_smooth[i] += a_smooth * (power[i][n] - power_smooth[i]);
+            peak_decay_diff_smooth[i] += a_smooth * (peak_decay_nrg[i] - power[i][n] - peak_decay_diff_smooth[i]);
+            denom = transient_impact * peak_decay_diff_smooth[i];
+            transient_gain[i][n]   = (denom > power_smooth[i]) ?
+                                         power_smooth[i] / denom : 1.0f;
+        }
+    }
+
+#endif /* USE_FIXED */
+    //Decorrelation and transient reduction
+    //                         PS_AP_LINKS - 1
+    //                               -----
+    //                                | |  Q_fract_allpass[k][m]*z^-link_delay[m] - a[m]*g_decay_slope[k]
+    //H[k][z] = z^-2 * phi_fract[k] * | | ----------------------------------------------------------------
+    //                                | | 1 - a[m]*g_decay_slope[k]*Q_fract_allpass[k][m]*z^-link_delay[m]
+    //                               m = 0
+    //d[k][z] (out) = transient_gain_mapped[k][z] * H[k][z] * s[k][z]
+    for (k = 0; k < NR_ALLPASS_BANDS[is34]; k++) {
+        int b = k_to_i[k];
+#if USE_FIXED
+        int g_decay_slope;
+
+        if (k - DECAY_CUTOFF[is34] <= 0) {
+          g_decay_slope = 1 << 30;
+        }
+        else if (k - DECAY_CUTOFF[is34] >= 20) {
+          g_decay_slope = 0;
+        }
+        else {
+          g_decay_slope = (1 << 30) - DECAY_SLOPE * (k - DECAY_CUTOFF[is34]);
+        }
+#else
+        float g_decay_slope = 1.f - DECAY_SLOPE * (k - DECAY_CUTOFF[is34]);
+        g_decay_slope = av_clipf(g_decay_slope, 0.f, 1.f);
+#endif /* USE_FIXED */
+        memcpy(delay[k], delay[k]+nL, PS_MAX_DELAY*sizeof(delay[k][0]));
+        memcpy(delay[k]+PS_MAX_DELAY, s[k], numQMFSlots*sizeof(delay[k][0]));
+        for (m = 0; m < PS_AP_LINKS; m++) {
+            memcpy(ap_delay[k][m],   ap_delay[k][m]+numQMFSlots,           5*sizeof(ap_delay[k][m][0]));
+        }
+        ps->dsp.decorrelate(out[k], delay[k] + PS_MAX_DELAY - 2, ap_delay[k],
+                            phi_fract[is34][k],
+                            (const INTFLOAT (*)[2]) Q_fract_allpass[is34][k],
+                            transient_gain[b], g_decay_slope, nL - n0);
+    }
+    for (; k < SHORT_DELAY_BAND[is34]; k++) {
+        int i = k_to_i[k];
+        memcpy(delay[k], delay[k]+nL, PS_MAX_DELAY*sizeof(delay[k][0]));
+        memcpy(delay[k]+PS_MAX_DELAY, s[k], numQMFSlots*sizeof(delay[k][0]));
+        //H = delay 14
+        ps->dsp.mul_pair_single(out[k], delay[k] + PS_MAX_DELAY - 14,
+                                transient_gain[i], nL - n0);
+    }
+    for (; k < NR_BANDS[is34]; k++) {
+        int i = k_to_i[k];
+        memcpy(delay[k], delay[k]+nL, PS_MAX_DELAY*sizeof(delay[k][0]));
+        memcpy(delay[k]+PS_MAX_DELAY, s[k], numQMFSlots*sizeof(delay[k][0]));
+        //H = delay 1
+        ps->dsp.mul_pair_single(out[k], delay[k] + PS_MAX_DELAY - 1,
+                                transient_gain[i], nL - n0);
+    }
+}
+
+static void remap34(int8_t (**p_par_mapped)[PS_MAX_NR_IIDICC],
+                    int8_t           (*par)[PS_MAX_NR_IIDICC],
+                    int num_par, int num_env, int full)
+{
+    int8_t (*par_mapped)[PS_MAX_NR_IIDICC] = *p_par_mapped;
+    int e;
+    if (num_par == 20 || num_par == 11) {
+        for (e = 0; e < num_env; e++) {
+            map_idx_20_to_34(par_mapped[e], par[e], full);
+        }
+    } else if (num_par == 10 || num_par == 5) {
+        for (e = 0; e < num_env; e++) {
+            map_idx_10_to_34(par_mapped[e], par[e], full);
+        }
+    } else {
+        *p_par_mapped = par;
+    }
+}
+
+static void remap20(int8_t (**p_par_mapped)[PS_MAX_NR_IIDICC],
+                    int8_t           (*par)[PS_MAX_NR_IIDICC],
+                    int num_par, int num_env, int full)
+{
+    int8_t (*par_mapped)[PS_MAX_NR_IIDICC] = *p_par_mapped;
+    int e;
+    if (num_par == 34 || num_par == 17) {
+        for (e = 0; e < num_env; e++) {
+            map_idx_34_to_20(par_mapped[e], par[e], full);
+        }
+    } else if (num_par == 10 || num_par == 5) {
+        for (e = 0; e < num_env; e++) {
+            map_idx_10_to_20(par_mapped[e], par[e], full);
+        }
+    } else {
+        *p_par_mapped = par;
+    }
+}
+
+static void stereo_processing(PSContext *ps, INTFLOAT (*l)[32][2], INTFLOAT (*r)[32][2], int is34)
+{
+    int e, b, k;
+
+    INTFLOAT (*H11)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H11;
+    INTFLOAT (*H12)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H12;
+    INTFLOAT (*H21)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H21;
+    INTFLOAT (*H22)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H22;
+    int8_t *opd_hist = ps->opd_hist;
+    int8_t *ipd_hist = ps->ipd_hist;
+    int8_t iid_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC];
+    int8_t icc_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC];
+    int8_t ipd_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC];
+    int8_t opd_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC];
+    int8_t (*iid_mapped)[PS_MAX_NR_IIDICC] = iid_mapped_buf;
+    int8_t (*icc_mapped)[PS_MAX_NR_IIDICC] = icc_mapped_buf;
+    int8_t (*ipd_mapped)[PS_MAX_NR_IIDICC] = ipd_mapped_buf;
+    int8_t (*opd_mapped)[PS_MAX_NR_IIDICC] = opd_mapped_buf;
+    const int8_t *k_to_i = is34 ? k_to_i_34 : k_to_i_20;
+    TABLE_CONST INTFLOAT (*H_LUT)[8][4] = (PS_BASELINE || ps->icc_mode < 3) ? HA : HB;
+
+    //Remapping
+    if (ps->num_env_old) {
+        memcpy(H11[0][0], H11[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H11[0][0][0]));
+        memcpy(H11[1][0], H11[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H11[1][0][0]));
+        memcpy(H12[0][0], H12[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H12[0][0][0]));
+        memcpy(H12[1][0], H12[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H12[1][0][0]));
+        memcpy(H21[0][0], H21[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H21[0][0][0]));
+        memcpy(H21[1][0], H21[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H21[1][0][0]));
+        memcpy(H22[0][0], H22[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H22[0][0][0]));
+        memcpy(H22[1][0], H22[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H22[1][0][0]));
+    }
+
+    if (is34) {
+        remap34(&iid_mapped, ps->iid_par, ps->nr_iid_par, ps->num_env, 1);
+        remap34(&icc_mapped, ps->icc_par, ps->nr_icc_par, ps->num_env, 1);
+        if (ps->enable_ipdopd) {
+            remap34(&ipd_mapped, ps->ipd_par, ps->nr_ipdopd_par, ps->num_env, 0);
+            remap34(&opd_mapped, ps->opd_par, ps->nr_ipdopd_par, ps->num_env, 0);
+        }
+        if (!ps->is34bands_old) {
+            map_val_20_to_34(H11[0][0]);
+            map_val_20_to_34(H11[1][0]);
+            map_val_20_to_34(H12[0][0]);
+            map_val_20_to_34(H12[1][0]);
+            map_val_20_to_34(H21[0][0]);
+            map_val_20_to_34(H21[1][0]);
+            map_val_20_to_34(H22[0][0]);
+            map_val_20_to_34(H22[1][0]);
+            ipdopd_reset(ipd_hist, opd_hist);
+        }
+    } else {
+        remap20(&iid_mapped, ps->iid_par, ps->nr_iid_par, ps->num_env, 1);
+        remap20(&icc_mapped, ps->icc_par, ps->nr_icc_par, ps->num_env, 1);
+        if (ps->enable_ipdopd) {
+            remap20(&ipd_mapped, ps->ipd_par, ps->nr_ipdopd_par, ps->num_env, 0);
+            remap20(&opd_mapped, ps->opd_par, ps->nr_ipdopd_par, ps->num_env, 0);
+        }
+        if (ps->is34bands_old) {
+            map_val_34_to_20(H11[0][0]);
+            map_val_34_to_20(H11[1][0]);
+            map_val_34_to_20(H12[0][0]);
+            map_val_34_to_20(H12[1][0]);
+            map_val_34_to_20(H21[0][0]);
+            map_val_34_to_20(H21[1][0]);
+            map_val_34_to_20(H22[0][0]);
+            map_val_34_to_20(H22[1][0]);
+            ipdopd_reset(ipd_hist, opd_hist);
+        }
+    }
+
+    //Mixing
+    for (e = 0; e < ps->num_env; e++) {
+        for (b = 0; b < NR_PAR_BANDS[is34]; b++) {
+            INTFLOAT h11, h12, h21, h22;
+            h11 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][0];
+            h12 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][1];
+            h21 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][2];
+            h22 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][3];
+
+            if (!PS_BASELINE && ps->enable_ipdopd && b < NR_IPDOPD_BANDS[is34]) {
+                //The spec say says to only run this smoother when enable_ipdopd
+                //is set but the reference decoder appears to run it constantly
+                INTFLOAT h11i, h12i, h21i, h22i;
+                INTFLOAT ipd_adj_re, ipd_adj_im;
+                int opd_idx = opd_hist[b] * 8 + opd_mapped[e][b];
+                int ipd_idx = ipd_hist[b] * 8 + ipd_mapped[e][b];
+                INTFLOAT opd_re = pd_re_smooth[opd_idx];
+                INTFLOAT opd_im = pd_im_smooth[opd_idx];
+                INTFLOAT ipd_re = pd_re_smooth[ipd_idx];
+                INTFLOAT ipd_im = pd_im_smooth[ipd_idx];
+                opd_hist[b] = opd_idx & 0x3F;
+                ipd_hist[b] = ipd_idx & 0x3F;
+
+                ipd_adj_re = AAC_MADD30(opd_re, ipd_re, opd_im, ipd_im);
+                ipd_adj_im = AAC_MSUB30(opd_im, ipd_re, opd_re, ipd_im);
+                h11i = AAC_MUL30(h11,  opd_im);
+                h11  = AAC_MUL30(h11,  opd_re);
+                h12i = AAC_MUL30(h12,  ipd_adj_im);
+                h12  = AAC_MUL30(h12,  ipd_adj_re);
+                h21i = AAC_MUL30(h21,  opd_im);
+                h21  = AAC_MUL30(h21,  opd_re);
+                h22i = AAC_MUL30(h22,  ipd_adj_im);
+                h22  = AAC_MUL30(h22,  ipd_adj_re);
+                H11[1][e+1][b] = h11i;
+                H12[1][e+1][b] = h12i;
+                H21[1][e+1][b] = h21i;
+                H22[1][e+1][b] = h22i;
+            }
+            H11[0][e+1][b] = h11;
+            H12[0][e+1][b] = h12;
+            H21[0][e+1][b] = h21;
+            H22[0][e+1][b] = h22;
+        }
+        for (k = 0; k < NR_BANDS[is34]; k++) {
+            LOCAL_ALIGNED_16(INTFLOAT, h, [2], [4]);
+            LOCAL_ALIGNED_16(INTFLOAT, h_step, [2], [4]);
+            int start = ps->border_position[e];
+            int stop  = ps->border_position[e+1];
+            INTFLOAT width = Q30(1.f) / ((stop - start) ? (stop - start) : 1);
+#if USE_FIXED
+            width = FFMIN(2U*width, INT_MAX);
+#endif
+            b = k_to_i[k];
+            h[0][0] = H11[0][e][b];
+            h[0][1] = H12[0][e][b];
+            h[0][2] = H21[0][e][b];
+            h[0][3] = H22[0][e][b];
+            if (!PS_BASELINE && ps->enable_ipdopd) {
+            //Is this necessary? ps_04_new seems unchanged
+            if ((is34 && k <= 13 && k >= 9) || (!is34 && k <= 1)) {
+                h[1][0] = -H11[1][e][b];
+                h[1][1] = -H12[1][e][b];
+                h[1][2] = -H21[1][e][b];
+                h[1][3] = -H22[1][e][b];
+            } else {
+                h[1][0] = H11[1][e][b];
+                h[1][1] = H12[1][e][b];
+                h[1][2] = H21[1][e][b];
+                h[1][3] = H22[1][e][b];
+            }
+            }
+            //Interpolation
+            h_step[0][0] = AAC_MSUB31_V3(H11[0][e+1][b], h[0][0], width);
+            h_step[0][1] = AAC_MSUB31_V3(H12[0][e+1][b], h[0][1], width);
+            h_step[0][2] = AAC_MSUB31_V3(H21[0][e+1][b], h[0][2], width);
+            h_step[0][3] = AAC_MSUB31_V3(H22[0][e+1][b], h[0][3], width);
+            if (!PS_BASELINE && ps->enable_ipdopd) {
+                h_step[1][0] = AAC_MSUB31_V3(H11[1][e+1][b], h[1][0], width);
+                h_step[1][1] = AAC_MSUB31_V3(H12[1][e+1][b], h[1][1], width);
+                h_step[1][2] = AAC_MSUB31_V3(H21[1][e+1][b], h[1][2], width);
+                h_step[1][3] = AAC_MSUB31_V3(H22[1][e+1][b], h[1][3], width);
+            }
+            if (stop - start)
+                ps->dsp.stereo_interpolate[!PS_BASELINE && ps->enable_ipdopd](
+                    l[k] + 1 + start, r[k] + 1 + start,
+                    h, h_step, stop - start);
+        }
+    }
+}
+
+int AAC_RENAME(ff_ps_apply)(AVCodecContext *avctx, PSContext *ps, INTFLOAT L[2][38][64], INTFLOAT R[2][38][64], int top)
+{
+    INTFLOAT (*Lbuf)[32][2] = ps->Lbuf;
+    INTFLOAT (*Rbuf)[32][2] = ps->Rbuf;
+    const int len = 32;
+    int is34 = ps->is34bands;
+
+    top += NR_BANDS[is34] - 64;
+    memset(ps->delay+top, 0, (NR_BANDS[is34] - top)*sizeof(ps->delay[0]));
+    if (top < NR_ALLPASS_BANDS[is34])
+        memset(ps->ap_delay + top, 0, (NR_ALLPASS_BANDS[is34] - top)*sizeof(ps->ap_delay[0]));
+
+    hybrid_analysis(&ps->dsp, Lbuf, ps->in_buf, L, is34, len);
+    decorrelation(ps, Rbuf, (const INTFLOAT (*)[32][2]) Lbuf, is34);
+    stereo_processing(ps, Lbuf, Rbuf, is34);
+    hybrid_synthesis(&ps->dsp, L, Lbuf, is34, len);
+    hybrid_synthesis(&ps->dsp, R, Rbuf, is34, len);
+
+    return 0;
+}
+
+#define PS_INIT_VLC_STATIC(num, size) \
+    INIT_VLC_STATIC(&vlc_ps[num], 9, ps_tmp[num].table_size / ps_tmp[num].elem_size,    \
+                    ps_tmp[num].ps_bits, 1, 1,                                          \
+                    ps_tmp[num].ps_codes, ps_tmp[num].elem_size, ps_tmp[num].elem_size, \
+                    size);
+
+#define PS_VLC_ROW(name) \
+    { name ## _codes, name ## _bits, sizeof(name ## _codes), sizeof(name ## _codes[0]) }
+
+av_cold void AAC_RENAME(ff_ps_init)(void) {
+    // Syntax initialization
+    static const struct {
+        const void *ps_codes, *ps_bits;
+        const unsigned int table_size, elem_size;
+    } ps_tmp[] = {
+        PS_VLC_ROW(huff_iid_df1),
+        PS_VLC_ROW(huff_iid_dt1),
+        PS_VLC_ROW(huff_iid_df0),
+        PS_VLC_ROW(huff_iid_dt0),
+        PS_VLC_ROW(huff_icc_df),
+        PS_VLC_ROW(huff_icc_dt),
+        PS_VLC_ROW(huff_ipd_df),
+        PS_VLC_ROW(huff_ipd_dt),
+        PS_VLC_ROW(huff_opd_df),
+        PS_VLC_ROW(huff_opd_dt),
+    };
+
+    PS_INIT_VLC_STATIC(0, 1544);
+    PS_INIT_VLC_STATIC(1,  832);
+    PS_INIT_VLC_STATIC(2, 1024);
+    PS_INIT_VLC_STATIC(3, 1036);
+    PS_INIT_VLC_STATIC(4,  544);
+    PS_INIT_VLC_STATIC(5,  544);
+    PS_INIT_VLC_STATIC(6,  512);
+    PS_INIT_VLC_STATIC(7,  512);
+    PS_INIT_VLC_STATIC(8,  512);
+    PS_INIT_VLC_STATIC(9,  512);
+
+    ps_tableinit();
+}
+
+av_cold void AAC_RENAME(ff_ps_ctx_init)(PSContext *ps)
+{
+    AAC_RENAME(ff_psdsp_init)(&ps->dsp);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps.h
new file mode 100644
index 000000000..61edce354
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps.h
@@ -0,0 +1,86 @@
+/*
+ * MPEG-4 Parametric Stereo definitions and declarations
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AACPS_H
+#define AVCODEC_AACPS_H
+
+#include <stdint.h>
+
+#include "aacpsdsp.h"
+#include "avcodec.h"
+#include "get_bits.h"
+
+#define PS_MAX_NUM_ENV 5
+#define PS_MAX_NR_IIDICC 34
+#define PS_MAX_NR_IPDOPD 17
+#define PS_MAX_SSB 91
+#define PS_MAX_AP_BANDS 50
+#define PS_QMF_TIME_SLOTS 32
+#define PS_MAX_DELAY 14
+#define PS_AP_LINKS 3
+#define PS_MAX_AP_DELAY 5
+
+typedef struct PSContext {
+    int    start;
+    int    enable_iid;
+    int    iid_quant;
+    int    nr_iid_par;
+    int    nr_ipdopd_par;
+    int    enable_icc;
+    int    icc_mode;
+    int    nr_icc_par;
+    int    enable_ext;
+    int    frame_class;
+    int    num_env_old;
+    int    num_env;
+    int    enable_ipdopd;
+    int    border_position[PS_MAX_NUM_ENV+1];
+    int8_t iid_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-channel Intensity Difference Parameters
+    int8_t icc_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-Channel Coherence Parameters
+    /* ipd/opd is iid/icc sized so that the same functions can handle both */
+    int8_t ipd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-channel Phase Difference Parameters
+    int8_t opd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Overall Phase Difference Parameters
+    int    is34bands;
+    int    is34bands_old;
+
+    DECLARE_ALIGNED(16, INTFLOAT, in_buf)[5][44][2];
+    DECLARE_ALIGNED(16, INTFLOAT, delay)[PS_MAX_SSB][PS_QMF_TIME_SLOTS + PS_MAX_DELAY][2];
+    DECLARE_ALIGNED(16, INTFLOAT, ap_delay)[PS_MAX_AP_BANDS][PS_AP_LINKS][PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2];
+    DECLARE_ALIGNED(16, INTFLOAT, peak_decay_nrg)[34];
+    DECLARE_ALIGNED(16, INTFLOAT, power_smooth)[34];
+    DECLARE_ALIGNED(16, INTFLOAT, peak_decay_diff_smooth)[34];
+    DECLARE_ALIGNED(16, INTFLOAT, H11)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, INTFLOAT, H12)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, INTFLOAT, H21)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, INTFLOAT, H22)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, INTFLOAT, Lbuf)[91][32][2];
+    DECLARE_ALIGNED(16, INTFLOAT, Rbuf)[91][32][2];
+    int8_t opd_hist[PS_MAX_NR_IIDICC];
+    int8_t ipd_hist[PS_MAX_NR_IIDICC];
+    PSDSPContext dsp;
+} PSContext;
+
+void AAC_RENAME(ff_ps_init)(void);
+void AAC_RENAME(ff_ps_ctx_init)(PSContext *ps);
+int AAC_RENAME(ff_ps_read_data)(AVCodecContext *avctx, GetBitContext *gb, PSContext *ps, int bits_left);
+int AAC_RENAME(ff_ps_apply)(AVCodecContext *avctx, PSContext *ps, INTFLOAT L[2][38][64], INTFLOAT R[2][38][64], int top);
+
+#endif /* AVCODEC_AACPS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_fixed.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_fixed.c
new file mode 100644
index 000000000..46af21339
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_fixed.c
@@ -0,0 +1,24 @@
+/*
+ * MPEG-4 Parametric Stereo decoding functions
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 1
+
+#include "aacps.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_fixed_tablegen.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_fixed_tablegen.c
new file mode 100644
index 000000000..9e306991f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_fixed_tablegen.c
@@ -0,0 +1,24 @@
+/*
+ * Generate a header file for hardcoded Parametric Stereo tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 1
+#include "aacps_tablegen_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_fixed_tablegen.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_fixed_tablegen.h
new file mode 100644
index 000000000..8b82deb59
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_fixed_tablegen.h
@@ -0,0 +1,403 @@
+/*
+ * Header file for hardcoded Parametric Stereo tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Note: Rounding-to-nearest used unless otherwise stated
+ *
+ */
+
+#ifndef AVCODEC_AACPS_FIXED_TABLEGEN_H
+#define AVCODEC_AACPS_FIXED_TABLEGEN_H
+
+#include <math.h>
+#include <stdint.h>
+
+#if CONFIG_HARDCODED_TABLES
+#define ps_tableinit()
+#define TABLE_CONST const
+#include "libavcodec/aacps_fixed_tables.h"
+#else
+#include "libavutil/common.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/mem.h"
+
+#include "aac_defines.h"
+#include "libavutil/softfloat.h"
+#define NR_ALLPASS_BANDS20 30
+#define NR_ALLPASS_BANDS34 50
+#define PS_AP_LINKS 3
+#define TABLE_CONST
+static int pd_re_smooth[8*8*8];
+static int pd_im_smooth[8*8*8];
+static int HA[46][8][4];
+static int HB[46][8][4];
+static DECLARE_ALIGNED(16, int, f20_0_8) [ 8][8][2];
+static DECLARE_ALIGNED(16, int, f34_0_12)[12][8][2];
+static DECLARE_ALIGNED(16, int, f34_1_8) [ 8][8][2];
+static DECLARE_ALIGNED(16, int, f34_2_4) [ 4][8][2];
+static TABLE_CONST DECLARE_ALIGNED(16, int, Q_fract_allpass)[2][50][3][2];
+static DECLARE_ALIGNED(16, int, phi_fract)[2][50][2];
+
+static const int g0_Q8[] = {
+    Q31(0.00746082949812f), Q31(0.02270420949825f), Q31(0.04546865930473f), Q31(0.07266113929591f),
+    Q31(0.09885108575264f), Q31(0.11793710567217f), Q31(0.125f)
+};
+
+static const int g0_Q12[] = {
+    Q31(0.04081179924692f), Q31(0.03812810994926f), Q31(0.05144908135699f), Q31(0.06399831151592f),
+    Q31(0.07428313801106f), Q31(0.08100347892914f), Q31(0.08333333333333f)
+};
+
+static const int g1_Q8[] = {
+    Q31(0.01565675600122f), Q31(0.03752716391991f), Q31(0.05417891378782f), Q31(0.08417044116767f),
+    Q31(0.10307344158036f), Q31(0.12222452249753f), Q31(0.125f)
+};
+
+static const int g2_Q4[] = {
+    Q31(-0.05908211155639f), Q31(-0.04871498374946f), Q31(0.0f),   Q31(0.07778723915851f),
+    Q31( 0.16486303567403f), Q31( 0.23279856662996f), Q31(0.25f)
+};
+
+static const int sintbl_4[4]   = {           0,  1073741824,           0, -1073741824 };
+static const int costbl_4[4]   = {  1073741824,           0, -1073741824,           0 };
+static const int sintbl_8[8]   = {           0,   759250125,  1073741824,   759250125,
+                                             0,  -759250125, -1073741824,  -759250125 };
+static const int costbl_8[8]   = {  1073741824,   759250125,           0,  -759250125,
+                                   -1073741824,  -759250125,           0,   759250125 };
+static const int sintbl_12[12] = {           0,   536870912,   929887697,  1073741824,
+                                     929887697,   536870912,           0,  -536870912,
+                                    -929887697, -1073741824,  -929887697,  -536870912 };
+static const int costbl_12[12] = {  1073741824,   929887697,   536870912,           0,
+                                    -536870912,  -929887697, -1073741824,  -929887697,
+                                    -536870912,           0,   536870912,   929887697 };
+
+static void make_filters_from_proto(int (*filter)[8][2], const int *proto, int bands)
+{
+
+    const int *sinptr, *cosptr;
+    int s, c, sinhalf, coshalf;
+    int q, n;
+
+    if (bands == 4) {
+        sinptr = sintbl_4;
+        cosptr = costbl_4;
+        sinhalf = 759250125;
+        coshalf = 759250125;
+    } else if (bands == 8) {
+        sinptr = sintbl_8;
+        cosptr = costbl_8;
+        sinhalf = 410903207;
+        coshalf = 992008094;
+    } else {
+        sinptr = sintbl_12;
+        cosptr = costbl_12;
+        sinhalf = 277904834;
+        coshalf = 1037154959;
+    }
+
+    for (q = 0; q < bands; q++) {
+        for (n = 0; n < 7; n++) {
+            int theta = (q*(n-6) + (n>>1) - 3) % bands;
+
+            if (theta < 0)
+                theta += bands;
+            s = sinptr[theta];
+            c = cosptr[theta];
+
+            if (n & 1) {
+                theta = (int)(((int64_t)c * coshalf - (int64_t)s * sinhalf + 0x20000000) >> 30);
+                s = (int)(((int64_t)s * coshalf + (int64_t)c * sinhalf + 0x20000000) >> 30);
+                c = theta;
+            }
+            filter[q][n][0] = (int)(((int64_t)proto[n] * c + 0x20000000) >> 30);
+            filter[q][n][1] = -(int)(((int64_t)proto[n] * s + 0x20000000) >> 30);
+        }
+    }
+}
+
+static void ps_tableinit(void)
+{
+    static const int ipdopd_sin[] = { Q30(0), Q30(M_SQRT1_2), Q30(1), Q30( M_SQRT1_2), Q30( 0), Q30(-M_SQRT1_2), Q30(-1), Q30(-M_SQRT1_2) };
+    static const int ipdopd_cos[] = { Q30(1), Q30(M_SQRT1_2), Q30(0), Q30(-M_SQRT1_2), Q30(-1), Q30(-M_SQRT1_2), Q30( 0), Q30( M_SQRT1_2) };
+    int pd0, pd1, pd2;
+    int idx;
+
+    static const int alpha_tab[] =
+    {
+      Q30(1.5146213770f/M_PI), Q30(1.5181334019f/M_PI), Q30(1.5234849453f/M_PI), Q30(1.5369486809f/M_PI), Q30(1.5500687361f/M_PI), Q30(1.5679757595f/M_PI),
+      Q30(1.4455626011f/M_PI), Q30(1.4531552792f/M_PI), Q30(1.4648091793f/M_PI), Q30(1.4945238829f/M_PI), Q30(1.5239057541f/M_PI), Q30(1.5644006729f/M_PI),
+      Q30(1.3738563061f/M_PI), Q30(1.3851221800f/M_PI), Q30(1.4026404619f/M_PI), Q30(1.4484288692f/M_PI), Q30(1.4949874878f/M_PI), Q30(1.5604078770f/M_PI),
+      Q30(1.2645189762f/M_PI), Q30(1.2796478271f/M_PI), Q30(1.3038636446f/M_PI), Q30(1.3710125685f/M_PI), Q30(1.4443849325f/M_PI), Q30(1.5532352924f/M_PI),
+      Q30(1.1507037878f/M_PI), Q30(1.1669205427f/M_PI), Q30(1.1938756704f/M_PI), Q30(1.2754167318f/M_PI), Q30(1.3761177063f/M_PI), Q30(1.5429240465f/M_PI),
+      Q30(1.0079245567f/M_PI), Q30(1.0208238363f/M_PI), Q30(1.0433073044f/M_PI), Q30(1.1208510399f/M_PI), Q30(1.2424604893f/M_PI), Q30(1.5185726881f/M_PI),
+      Q30(0.8995233774f/M_PI), Q30(0.9069069624f/M_PI), Q30(0.9201194048f/M_PI), Q30(0.9698365927f/M_PI), Q30(1.0671583414f/M_PI), Q30(1.4647934437f/M_PI),
+      Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI),
+      Q30(0.6712729335f/M_PI), Q30(0.6638893485f/M_PI), Q30(0.6506769061f/M_PI), Q30(0.6009597182f/M_PI), Q30(0.5036380291f/M_PI), Q30(0.1060028747f/M_PI),
+      Q30(0.5628717542f/M_PI), Q30(0.5499725342f/M_PI), Q30(0.5274890065f/M_PI), Q30(0.4499453008f/M_PI), Q30(0.3283358216f/M_PI), Q30(0.0522236861f/M_PI),
+      Q30(0.4200925827f/M_PI), Q30(0.4038758278f/M_PI), Q30(0.3769206405f/M_PI), Q30(0.2953795493f/M_PI), Q30(0.1946786791f/M_PI), Q30(0.0278722942f/M_PI),
+      Q30(0.3062773645f/M_PI), Q30(0.2911485136f/M_PI), Q30(0.2669326365f/M_PI), Q30(0.1997837722f/M_PI), Q30(0.1264114529f/M_PI), Q30(0.0175609849f/M_PI),
+      Q30(0.1969399750f/M_PI), Q30(0.1856741160f/M_PI), Q30(0.1681558639f/M_PI), Q30(0.1223674342f/M_PI), Q30(0.0758088827f/M_PI), Q30(0.0103884479f/M_PI),
+      Q30(0.1252337098f/M_PI), Q30(0.1176410317f/M_PI), Q30(0.1059871912f/M_PI), Q30(0.0762724727f/M_PI), Q30(0.0468905345f/M_PI), Q30(0.0063956482f/M_PI),
+      Q30(0.0561749674f/M_PI), Q30(0.0526629239f/M_PI), Q30(0.0473113805f/M_PI), Q30(0.0338476151f/M_PI), Q30(0.0207276177f/M_PI), Q30(0.0028205961f/M_PI),
+      Q30(1.5676341057f/M_PI), Q30(1.5678333044f/M_PI), Q30(1.5681363344f/M_PI), Q30(1.5688960552f/M_PI), Q30(1.5696337223f/M_PI), Q30(1.5706381798f/M_PI),
+      Q30(1.5651730299f/M_PI), Q30(1.5655272007f/M_PI), Q30(1.5660660267f/M_PI), Q30(1.5674170256f/M_PI), Q30(1.5687289238f/M_PI), Q30(1.5705151558f/M_PI),
+      Q30(1.5607966185f/M_PI), Q30(1.5614265203f/M_PI), Q30(1.5623844862f/M_PI), Q30(1.5647867918f/M_PI), Q30(1.5671195984f/M_PI), Q30(1.5702962875f/M_PI),
+      Q30(1.5530153513f/M_PI), Q30(1.5541347265f/M_PI), Q30(1.5558375120f/M_PI), Q30(1.5601085424f/M_PI), Q30(1.5642569065f/M_PI), Q30(1.5699069500f/M_PI),
+      Q30(1.5391840935f/M_PI), Q30(1.5411708355f/M_PI), Q30(1.5441943407f/M_PI), Q30(1.5517836809f/M_PI), Q30(1.5591609478f/M_PI), Q30(1.5692136288f/M_PI),
+      Q30(1.5146213770f/M_PI), Q30(1.5181334019f/M_PI), Q30(1.5234849453f/M_PI), Q30(1.5369486809f/M_PI), Q30(1.5500687361f/M_PI), Q30(1.5679757595f/M_PI),
+      Q30(1.4915299416f/M_PI), Q30(1.4964480400f/M_PI), Q30(1.5039558411f/M_PI), Q30(1.5229074955f/M_PI), Q30(1.5414420366f/M_PI), Q30(1.5667995214f/M_PI),
+      Q30(1.4590617418f/M_PI), Q30(1.4658898115f/M_PI), Q30(1.4763505459f/M_PI), Q30(1.5029321909f/M_PI), Q30(1.5291173458f/M_PI), Q30(1.5651149750f/M_PI),
+      Q30(1.4136143923f/M_PI), Q30(1.4229322672f/M_PI), Q30(1.4373078346f/M_PI), Q30(1.4743183851f/M_PI), Q30(1.5113102198f/M_PI), Q30(1.5626684427f/M_PI),
+      Q30(1.3505556583f/M_PI), Q30(1.3628427982f/M_PI), Q30(1.3820509911f/M_PI), Q30(1.4327841997f/M_PI), Q30(1.4850014448f/M_PI), Q30(1.5590143204f/M_PI),
+      Q30(1.2645189762f/M_PI), Q30(1.2796478271f/M_PI), Q30(1.3038636446f/M_PI), Q30(1.3710125685f/M_PI), Q30(1.4443849325f/M_PI), Q30(1.5532352924f/M_PI),
+      Q30(1.1919227839f/M_PI), Q30(1.2081253529f/M_PI), Q30(1.2346779108f/M_PI), Q30(1.3123005629f/M_PI), Q30(1.4034168720f/M_PI), Q30(1.5471596718f/M_PI),
+      Q30(1.1061993837f/M_PI), Q30(1.1219338179f/M_PI), Q30(1.1484941244f/M_PI), Q30(1.2320860624f/M_PI), Q30(1.3421301842f/M_PI), Q30(1.5373806953f/M_PI),
+      Q30(1.0079245567f/M_PI), Q30(1.0208238363f/M_PI), Q30(1.0433073044f/M_PI), Q30(1.1208510399f/M_PI), Q30(1.2424604893f/M_PI), Q30(1.5185726881f/M_PI),
+      Q30(0.8995233774f/M_PI), Q30(0.9069069624f/M_PI), Q30(0.9201194048f/M_PI), Q30(0.9698365927f/M_PI), Q30(1.0671583414f/M_PI), Q30(1.4647934437f/M_PI),
+      Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI),
+      Q30(0.6712729335f/M_PI), Q30(0.6638893485f/M_PI), Q30(0.6506769061f/M_PI), Q30(0.6009597182f/M_PI), Q30(0.5036380291f/M_PI), Q30(0.1060028747f/M_PI),
+      Q30(0.5628717542f/M_PI), Q30(0.5499725342f/M_PI), Q30(0.5274890065f/M_PI), Q30(0.4499453008f/M_PI), Q30(0.3283358216f/M_PI), Q30(0.0522236861f/M_PI),
+      Q30(0.4645969570f/M_PI), Q30(0.4488625824f/M_PI), Q30(0.4223022461f/M_PI), Q30(0.3387103081f/M_PI), Q30(0.2286661267f/M_PI), Q30(0.0334156826f/M_PI),
+      Q30(0.3788735867f/M_PI), Q30(0.3626709878f/M_PI), Q30(0.3361184299f/M_PI), Q30(0.2584958076f/M_PI), Q30(0.1673794836f/M_PI), Q30(0.0236366931f/M_PI),
+      Q30(0.3062773645f/M_PI), Q30(0.2911485136f/M_PI), Q30(0.2669326365f/M_PI), Q30(0.1997837722f/M_PI), Q30(0.1264114529f/M_PI), Q30(0.0175609849f/M_PI),
+      Q30(0.2202406377f/M_PI), Q30(0.2079535723f/M_PI), Q30(0.1887452900f/M_PI), Q30(0.1380121708f/M_PI), Q30(0.0857949182f/M_PI), Q30(0.0117820343f/M_PI),
+      Q30(0.1571819335f/M_PI), Q30(0.1478640437f/M_PI), Q30(0.1334884763f/M_PI), Q30(0.0964778885f/M_PI), Q30(0.0594860613f/M_PI), Q30(0.0081279324f/M_PI),
+      Q30(0.1117345318f/M_PI), Q30(0.1049065739f/M_PI), Q30(0.0944457650f/M_PI), Q30(0.0678641573f/M_PI), Q30(0.0416790098f/M_PI), Q30(0.0056813755f/M_PI),
+      Q30(0.0792663917f/M_PI), Q30(0.0743482932f/M_PI), Q30(0.0668405443f/M_PI), Q30(0.0478888862f/M_PI), Q30(0.0293543357f/M_PI), Q30(0.0039967746f/M_PI),
+      Q30(0.0561749674f/M_PI), Q30(0.0526629239f/M_PI), Q30(0.0473113805f/M_PI), Q30(0.0338476151f/M_PI), Q30(0.0207276177f/M_PI), Q30(0.0028205961f/M_PI),
+      Q30(0.0316122435f/M_PI), Q30(0.0296254847f/M_PI), Q30(0.0266019460f/M_PI), Q30(0.0190126132f/M_PI), Q30(0.0116353342f/M_PI), Q30(0.0015827164f/M_PI),
+      Q30(0.0177809205f/M_PI), Q30(0.0166615788f/M_PI), Q30(0.0149587989f/M_PI), Q30(0.0106877899f/M_PI), Q30(0.0065393616f/M_PI), Q30(0.0008894200f/M_PI),
+      Q30(0.0099996664f/M_PI), Q30(0.0093698399f/M_PI), Q30(0.0084118480f/M_PI), Q30(0.0060095116f/M_PI), Q30(0.0036767013f/M_PI), Q30(0.0005000498f/M_PI),
+      Q30(0.0056233541f/M_PI), Q30(0.0052691097f/M_PI), Q30(0.0047303112f/M_PI), Q30(0.0033792770f/M_PI), Q30(0.0020674451f/M_PI), Q30(0.0002811795f/M_PI),
+      Q30(0.0031622672f/M_PI), Q30(0.0029630491f/M_PI), Q30(0.0026600463f/M_PI), Q30(0.0019002859f/M_PI), Q30(0.0011625893f/M_PI), Q30(0.0001581155f/M_PI)
+    };
+
+    static const int gamma_tab[] =
+    {
+      Q30(0.0000000000f/M_PI), Q30(0.0195873566f/M_PI), Q30(0.0303316917f/M_PI), Q30(0.0448668823f/M_PI), Q30(0.0522258915f/M_PI), Q30(0.0561044961f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0433459543f/M_PI), Q30(0.0672172382f/M_PI), Q30(0.0997167900f/M_PI), Q30(0.1162951663f/M_PI), Q30(0.1250736862f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0672341362f/M_PI), Q30(0.1045235619f/M_PI), Q30(0.1558904350f/M_PI), Q30(0.1824723780f/M_PI), Q30(0.1966800541f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1011129096f/M_PI), Q30(0.1580764502f/M_PI), Q30(0.2387557179f/M_PI), Q30(0.2820728719f/M_PI), Q30(0.3058380187f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1315985769f/M_PI), Q30(0.2072522491f/M_PI), Q30(0.3188187480f/M_PI), Q30(0.3825501204f/M_PI), Q30(0.4193951190f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1603866369f/M_PI), Q30(0.2549437582f/M_PI), Q30(0.4029446840f/M_PI), Q30(0.4980689585f/M_PI), Q30(0.5615641475f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1784276664f/M_PI), Q30(0.2856673002f/M_PI), Q30(0.4630723596f/M_PI), Q30(0.5971632004f/M_PI), Q30(0.7603877187f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1603866369f/M_PI), Q30(0.2549437582f/M_PI), Q30(0.4029446840f/M_PI), Q30(0.4980689585f/M_PI), Q30(0.5615641475f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1315985769f/M_PI), Q30(0.2072522491f/M_PI), Q30(0.3188187480f/M_PI), Q30(0.3825501204f/M_PI), Q30(0.4193951190f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1011129096f/M_PI), Q30(0.1580764502f/M_PI), Q30(0.2387557179f/M_PI), Q30(0.2820728719f/M_PI), Q30(0.3058380187f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0672341362f/M_PI), Q30(0.1045235619f/M_PI), Q30(0.1558904350f/M_PI), Q30(0.1824723780f/M_PI), Q30(0.1966800541f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0433459543f/M_PI), Q30(0.0672172382f/M_PI), Q30(0.0997167900f/M_PI), Q30(0.1162951663f/M_PI), Q30(0.1250736862f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0195873566f/M_PI), Q30(0.0303316917f/M_PI), Q30(0.0448668823f/M_PI), Q30(0.0522258915f/M_PI), Q30(0.0561044961f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0011053939f/M_PI), Q30(0.0017089852f/M_PI), Q30(0.0025254129f/M_PI), Q30(0.0029398468f/M_PI), Q30(0.0031597170f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0019607407f/M_PI), Q30(0.0030395309f/M_PI), Q30(0.0044951206f/M_PI), Q30(0.0052305623f/M_PI), Q30(0.0056152637f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0034913034f/M_PI), Q30(0.0054070661f/M_PI), Q30(0.0079917293f/M_PI), Q30(0.0092999367f/M_PI), Q30(0.0099875759f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0062100487f/M_PI), Q30(0.0096135242f/M_PI), Q30(0.0142110568f/M_PI), Q30(0.0165348612f/M_PI), Q30(0.0177587029f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0110366223f/M_PI), Q30(0.0170863140f/M_PI), Q30(0.0252620988f/M_PI), Q30(0.0293955617f/M_PI), Q30(0.0315726399f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0195873566f/M_PI), Q30(0.0303316917f/M_PI), Q30(0.0448668823f/M_PI), Q30(0.0522258915f/M_PI), Q30(0.0561044961f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0275881495f/M_PI), Q30(0.0427365713f/M_PI), Q30(0.0632618815f/M_PI), Q30(0.0736731067f/M_PI), Q30(0.0791663304f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0387469754f/M_PI), Q30(0.0600636788f/M_PI), Q30(0.0890387669f/M_PI), Q30(0.1037906483f/M_PI), Q30(0.1115923747f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0541138873f/M_PI), Q30(0.0839984417f/M_PI), Q30(0.1248718798f/M_PI), Q30(0.1458375156f/M_PI), Q30(0.1569785923f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0747506917f/M_PI), Q30(0.1163287833f/M_PI), Q30(0.1738867164f/M_PI), Q30(0.2038587779f/M_PI), Q30(0.2199459076f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1011129096f/M_PI), Q30(0.1580764502f/M_PI), Q30(0.2387557179f/M_PI), Q30(0.2820728719f/M_PI), Q30(0.3058380187f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1212290376f/M_PI), Q30(0.1903949380f/M_PI), Q30(0.2907958031f/M_PI), Q30(0.3466993868f/M_PI), Q30(0.3782821596f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1418247074f/M_PI), Q30(0.2240308374f/M_PI), Q30(0.3474813402f/M_PI), Q30(0.4202919006f/M_PI), Q30(0.4637607038f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1603866369f/M_PI), Q30(0.2549437582f/M_PI), Q30(0.4029446840f/M_PI), Q30(0.4980689585f/M_PI), Q30(0.5615641475f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1784276664f/M_PI), Q30(0.2856673002f/M_PI), Q30(0.4630723596f/M_PI), Q30(0.5971632004f/M_PI), Q30(0.7603877187f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1603866369f/M_PI), Q30(0.2549437582f/M_PI), Q30(0.4029446840f/M_PI), Q30(0.4980689585f/M_PI), Q30(0.5615641475f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1418247074f/M_PI), Q30(0.2240308374f/M_PI), Q30(0.3474813402f/M_PI), Q30(0.4202919006f/M_PI), Q30(0.4637607038f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1212290376f/M_PI), Q30(0.1903949380f/M_PI), Q30(0.2907958031f/M_PI), Q30(0.3466993868f/M_PI), Q30(0.3782821596f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1011129096f/M_PI), Q30(0.1580764502f/M_PI), Q30(0.2387557179f/M_PI), Q30(0.2820728719f/M_PI), Q30(0.3058380187f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0747506917f/M_PI), Q30(0.1163287833f/M_PI), Q30(0.1738867164f/M_PI), Q30(0.2038587779f/M_PI), Q30(0.2199459076f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0541138873f/M_PI), Q30(0.0839984417f/M_PI), Q30(0.1248718798f/M_PI), Q30(0.1458375156f/M_PI), Q30(0.1569785923f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0387469754f/M_PI), Q30(0.0600636788f/M_PI), Q30(0.0890387669f/M_PI), Q30(0.1037906483f/M_PI), Q30(0.1115923747f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0275881495f/M_PI), Q30(0.0427365713f/M_PI), Q30(0.0632618815f/M_PI), Q30(0.0736731067f/M_PI), Q30(0.0791663304f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0195873566f/M_PI), Q30(0.0303316917f/M_PI), Q30(0.0448668823f/M_PI), Q30(0.0522258915f/M_PI), Q30(0.0561044961f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0110366223f/M_PI), Q30(0.0170863140f/M_PI), Q30(0.0252620988f/M_PI), Q30(0.0293955617f/M_PI), Q30(0.0315726399f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0062100487f/M_PI), Q30(0.0096135242f/M_PI), Q30(0.0142110568f/M_PI), Q30(0.0165348612f/M_PI), Q30(0.0177587029f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0034913034f/M_PI), Q30(0.0054070661f/M_PI), Q30(0.0079917293f/M_PI), Q30(0.0092999367f/M_PI), Q30(0.0099875759f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0019607407f/M_PI), Q30(0.0030395309f/M_PI), Q30(0.0044951206f/M_PI), Q30(0.0052305623f/M_PI), Q30(0.0056152637f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0011053939f/M_PI), Q30(0.0017089852f/M_PI), Q30(0.0025254129f/M_PI), Q30(0.0029398468f/M_PI), Q30(0.0031597170f/M_PI)
+    };
+
+    static const int iid_par_dequant_c1[] = {
+        //iid_par_dequant_default
+        Q30(1.41198278375959f), Q30(1.40313815268360f), Q30(1.38687670404960f), Q30(1.34839972492648f),
+        Q30(1.29124937110028f), Q30(1.19603741667993f), Q30(1.10737240362323f), Q30(1),
+        Q30(0.87961716655242f), Q30(0.75464859232732f), Q30(0.57677990744575f), Q30(0.42640143271122f),
+        Q30(0.27671828230984f), Q30(0.17664462766713f), Q30(0.07940162697653f),
+        //iid_par_dequant_fine
+        Q30(1.41420649135832f), Q30(1.41419120222364f), Q30(1.41414285699784f), Q30(1.41399000859438f),
+        Q30(1.41350698548044f), Q30(1.41198278375959f), Q30(1.40977302262355f), Q30(1.40539479488545f),
+        Q30(1.39677960498402f), Q30(1.38005309967827f), Q30(1.34839972492648f), Q30(1.31392017367631f),
+        Q30(1.26431008149654f), Q30(1.19603741667993f), Q30(1.10737240362323f), Q30(1),
+        Q30(0.87961716655242f), Q30(0.75464859232732f), Q30(0.63365607219232f), Q30(0.52308104267543f),
+        Q30(0.42640143271122f), Q30(0.30895540465965f), Q30(0.22137464873077f), Q30(0.15768788954414f),
+        Q30(0.11198225164225f), Q30(0.07940162697653f), Q30(0.04469901562677f), Q30(0.02514469318284f),
+        Q30(0.01414142856998f), Q30(0.00795258154731f), Q30(0.00447211359449f),
+    };
+
+    static const int acos_icc_invq[] = {
+        Q31(0), Q31(0.178427635f/M_PI), Q31(0.28566733f/M_PI), Q31(0.46307236f/M_PI), Q31(0.59716315f/M_PI), Q31(0.78539816f/M_PI), Q31(1.10030855f/M_PI), Q31(1.57079633f/M_PI)
+    };
+    int iid, icc;
+
+    int k, m;
+    static const int8_t f_center_20[] = {
+        -3, -1, 1, 3, 5, 7, 10, 14, 18, 22,
+    };
+    static const int32_t f_center_34[] = {
+      Q31(  2/768.0),Q31(  6/768.0),Q31(10/768.0),Q31(14/768.0),Q31( 18/768.0),Q31( 22/768.0),Q31( 26/768.0),Q31(30/768.0),
+      Q31( 34/768.0),Q31(-10/768.0),Q31(-6/768.0),Q31(-2/768.0),Q31( 51/768.0),Q31( 57/768.0),Q31( 15/768.0),Q31(21/768.0),
+      Q31( 27/768.0),Q31( 33/768.0),Q31(39/768.0),Q31(45/768.0),Q31( 54/768.0),Q31( 66/768.0),Q31( 78/768.0),Q31(42/768.0),
+      Q31(102/768.0),Q31( 66/768.0),Q31(78/768.0),Q31(90/768.0),Q31(102/768.0),Q31(114/768.0),Q31(126/768.0),Q31(90/768.0)
+    };
+    static const int fractional_delay_links[] = { Q31(0.43f), Q31(0.75f), Q31(0.347f) };
+    const int fractional_delay_gain = Q31(0.39f);
+
+    for (pd0 = 0; pd0 < 8; pd0++) {
+        int pd0_re = (ipdopd_cos[pd0]+2)>>2;
+        int pd0_im = (ipdopd_sin[pd0]+2)>>2;
+        for (pd1 = 0; pd1 < 8; pd1++) {
+            int pd1_re = ipdopd_cos[pd1] >> 1;
+            int pd1_im = ipdopd_sin[pd1] >> 1;
+            for (pd2 = 0; pd2 < 8; pd2++) {
+                int shift, round;
+                int pd2_re = ipdopd_cos[pd2];
+                int pd2_im = ipdopd_sin[pd2];
+                int re_smooth = pd0_re + pd1_re + pd2_re;
+                int im_smooth = pd0_im + pd1_im + pd2_im;
+
+                SoftFloat pd_mag = av_int2sf(((ipdopd_cos[(pd0-pd1)&7]+8)>>4) + ((ipdopd_cos[(pd0-pd2)&7]+4)>>3) +
+                                               ((ipdopd_cos[(pd1-pd2)&7]+2)>>2) + 0x15000000, 28);
+                pd_mag = av_div_sf(FLOAT_1, av_sqrt_sf(pd_mag));
+                shift = 30 - pd_mag.exp;
+                round = 1 << (shift-1);
+                pd_re_smooth[pd0*64+pd1*8+pd2] = (int)(((int64_t)re_smooth * pd_mag.mant + round) >> shift);
+                pd_im_smooth[pd0*64+pd1*8+pd2] = (int)(((int64_t)im_smooth * pd_mag.mant + round) >> shift);
+            }
+        }
+    }
+
+    idx = 0;
+    for (iid = 0; iid < 46; iid++) {
+        int c1, c2;
+
+        c1 = iid_par_dequant_c1[iid];
+        if (iid < 15)
+          c2 = iid_par_dequant_c1[14-iid];
+        else
+          c2 = iid_par_dequant_c1[60-iid];
+
+        for (icc = 0; icc < 8; icc++) {
+            /*if (PS_BASELINE || ps->icc_mode < 3)*/{
+                int alpha, beta;
+                int ca, sa, cb, sb;
+
+                alpha = acos_icc_invq[icc];
+                beta = (int)(((int64_t)alpha * 1518500250 + 0x40000000) >> 31);
+                alpha >>= 1;
+                beta = (int)(((int64_t)beta * (c1 - c2) + 0x40000000) >> 31);
+                av_sincos_sf(beta + alpha, &sa, &ca);
+                av_sincos_sf(beta - alpha, &sb, &cb);
+
+                HA[iid][icc][0] = (int)(((int64_t)c2 * ca + 0x20000000) >> 30);
+                HA[iid][icc][1] = (int)(((int64_t)c1 * cb + 0x20000000) >> 30);
+                HA[iid][icc][2] = (int)(((int64_t)c2 * sa + 0x20000000) >> 30);
+                HA[iid][icc][3] = (int)(((int64_t)c1 * sb + 0x20000000) >> 30);
+            } /* else */ {
+                int alpha_int, gamma_int;
+                int alpha_c_int, alpha_s_int, gamma_c_int, gamma_s_int;
+
+                alpha_int = alpha_tab[idx];
+                gamma_int = gamma_tab[idx];
+
+                av_sincos_sf(alpha_int, &alpha_s_int, &alpha_c_int);
+                av_sincos_sf(gamma_int, &gamma_s_int, &gamma_c_int);
+
+                alpha_c_int = (int)(((int64_t)alpha_c_int * 1518500250 + 0x20000000) >> 30);
+                alpha_s_int = (int)(((int64_t)alpha_s_int * 1518500250 + 0x20000000) >> 30);
+
+                HB[iid][icc][0] = (int)(((int64_t)alpha_c_int * gamma_c_int + 0x20000000) >> 30);
+                HB[iid][icc][1] = (int)(((int64_t)alpha_s_int * gamma_c_int + 0x20000000) >> 30);
+                HB[iid][icc][2] = -(int)(((int64_t)alpha_s_int * gamma_s_int + 0x20000000) >> 30);
+                HB[iid][icc][3] = (int)(((int64_t)alpha_c_int * gamma_s_int + 0x20000000) >> 30);
+            }
+
+            if (icc < 5 || icc > 6)
+              idx++;
+        }
+    }
+
+    for (k = 0; k < NR_ALLPASS_BANDS20; k++) {
+        int theta;
+        int64_t f_center;
+        int c, s;
+
+        if (k < FF_ARRAY_ELEMS(f_center_20))
+          f_center = f_center_20[k];
+        else
+          f_center = (k << 3) - 52;
+
+        for (m = 0; m < PS_AP_LINKS; m++) {
+            theta = (int)(((int64_t)fractional_delay_links[m] * f_center + 8) >> 4);
+            av_sincos_sf(-theta, &s, &c);
+            Q_fract_allpass[0][k][m][0] = c;
+            Q_fract_allpass[0][k][m][1] = s;
+        }
+
+        theta = (int)(((int64_t)fractional_delay_gain * f_center + 8) >> 4);
+        av_sincos_sf(-theta, &s, &c);
+        phi_fract[0][k][0] = c;
+        phi_fract[0][k][1] = s;
+    }
+
+    for (k = 0; k < NR_ALLPASS_BANDS34; k++) {
+        int theta, f_center;
+        int c, s;
+
+        if (k < FF_ARRAY_ELEMS(f_center_34))
+            f_center = f_center_34[k];
+        else
+            f_center = ((int64_t)k << 26) - (53 << 25);
+
+        for (m = 0; m < PS_AP_LINKS; m++) {
+            theta = (int)(((int64_t)fractional_delay_links[m] * f_center + 0x10000000) >> 27);
+            av_sincos_sf(-theta, &s, &c);
+            Q_fract_allpass[1][k][m][0] = c;
+            Q_fract_allpass[1][k][m][1] = s;
+        }
+
+        theta = (int)(((int64_t)fractional_delay_gain * f_center + 0x10000000) >> 27);
+        av_sincos_sf(-theta, &s, &c);
+        phi_fract[1][k][0] = c;
+        phi_fract[1][k][1] = s;
+    }
+
+    make_filters_from_proto(f20_0_8,  g0_Q8,   8);
+    make_filters_from_proto(f34_0_12, g0_Q12, 12);
+    make_filters_from_proto(f34_1_8,  g1_Q8,   8);
+    make_filters_from_proto(f34_2_4,  g2_Q4,   4);
+}
+#endif /* CONFIG_HARDCODED_TABLES */
+
+#endif /* AVCODEC_AACPS_FIXED_TABLEGEN_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_float.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_float.c
new file mode 100644
index 000000000..73259c10f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_float.c
@@ -0,0 +1,24 @@
+/*
+ * MPEG-4 Parametric Stereo decoding functions
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 0
+
+#include "aacps.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_tablegen.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_tablegen.c
new file mode 100644
index 000000000..26a6752fa
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_tablegen.c
@@ -0,0 +1,24 @@
+/*
+ * Generate a header file for hardcoded Parametric Stereo tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 0
+#include "aacps_tablegen_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_tablegen.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_tablegen.h
new file mode 100644
index 000000000..0ac4f68d6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_tablegen.h
@@ -0,0 +1,217 @@
+/*
+ * Header file for hardcoded Parametric Stereo tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AACPS_TABLEGEN_H
+#define AVCODEC_AACPS_TABLEGEN_H
+
+#include <math.h>
+#include <stdint.h>
+
+#if CONFIG_HARDCODED_TABLES
+#define ps_tableinit()
+#define TABLE_CONST const
+#include "libavcodec/aacps_tables.h"
+#else
+#include "libavutil/common.h"
+#include "libavutil/libm.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/mem.h"
+#define NR_ALLPASS_BANDS20 30
+#define NR_ALLPASS_BANDS34 50
+#define PS_AP_LINKS 3
+#define TABLE_CONST
+static float pd_re_smooth[8*8*8];
+static float pd_im_smooth[8*8*8];
+static float HA[46][8][4];
+static float HB[46][8][4];
+static DECLARE_ALIGNED(16, float, f20_0_8) [ 8][8][2];
+static DECLARE_ALIGNED(16, float, f34_0_12)[12][8][2];
+static DECLARE_ALIGNED(16, float, f34_1_8) [ 8][8][2];
+static DECLARE_ALIGNED(16, float, f34_2_4) [ 4][8][2];
+static TABLE_CONST DECLARE_ALIGNED(16, float, Q_fract_allpass)[2][50][3][2];
+static DECLARE_ALIGNED(16, float, phi_fract)[2][50][2];
+
+static const float g0_Q8[] = {
+    0.00746082949812f, 0.02270420949825f, 0.04546865930473f, 0.07266113929591f,
+    0.09885108575264f, 0.11793710567217f, 0.125f
+};
+
+static const float g0_Q12[] = {
+    0.04081179924692f, 0.03812810994926f, 0.05144908135699f, 0.06399831151592f,
+    0.07428313801106f, 0.08100347892914f, 0.08333333333333f
+};
+
+static const float g1_Q8[] = {
+    0.01565675600122f, 0.03752716391991f, 0.05417891378782f, 0.08417044116767f,
+    0.10307344158036f, 0.12222452249753f, 0.125f
+};
+
+static const float g2_Q4[] = {
+    -0.05908211155639f, -0.04871498374946f, 0.0f,   0.07778723915851f,
+     0.16486303567403f,  0.23279856662996f, 0.25f
+};
+
+static av_cold void make_filters_from_proto(float (*filter)[8][2], const float *proto, int bands)
+{
+    int q, n;
+    for (q = 0; q < bands; q++) {
+        for (n = 0; n < 7; n++) {
+            double theta = 2 * M_PI * (q + 0.5) * (n - 6) / bands;
+            filter[q][n][0] = proto[n] *  cos(theta);
+            filter[q][n][1] = proto[n] * -sin(theta);
+        }
+    }
+}
+
+static av_cold void ps_tableinit(void)
+{
+    static const float ipdopd_sin[] = { 0, M_SQRT1_2, 1,  M_SQRT1_2,  0, -M_SQRT1_2, -1, -M_SQRT1_2 };
+    static const float ipdopd_cos[] = { 1, M_SQRT1_2, 0, -M_SQRT1_2, -1, -M_SQRT1_2,  0,  M_SQRT1_2 };
+    int pd0, pd1, pd2;
+
+    static const float iid_par_dequant[] = {
+        //iid_par_dequant_default
+        0.05623413251903, 0.12589254117942, 0.19952623149689, 0.31622776601684,
+        0.44668359215096, 0.63095734448019, 0.79432823472428, 1,
+        1.25892541179417, 1.58489319246111, 2.23872113856834, 3.16227766016838,
+        5.01187233627272, 7.94328234724282, 17.7827941003892,
+        //iid_par_dequant_fine
+        0.00316227766017, 0.00562341325190, 0.01,             0.01778279410039,
+        0.03162277660168, 0.05623413251903, 0.07943282347243, 0.11220184543020,
+        0.15848931924611, 0.22387211385683, 0.31622776601684, 0.39810717055350,
+        0.50118723362727, 0.63095734448019, 0.79432823472428, 1,
+        1.25892541179417, 1.58489319246111, 1.99526231496888, 2.51188643150958,
+        3.16227766016838, 4.46683592150963, 6.30957344480193, 8.91250938133745,
+        12.5892541179417, 17.7827941003892, 31.6227766016838, 56.2341325190349,
+        100,              177.827941003892, 316.227766016837,
+    };
+    static const float icc_invq[] = {
+        1, 0.937,      0.84118,    0.60092,    0.36764,   0,      -0.589,    -1
+    };
+    static const float acos_icc_invq[] = {
+        0, 0.35685527, 0.57133466, 0.92614472, 1.1943263, M_PI/2, 2.2006171, M_PI
+    };
+    int iid, icc;
+
+    int k, m;
+    static const int8_t f_center_20[] = {
+        -3, -1, 1, 3, 5, 7, 10, 14, 18, 22,
+    };
+    static const int8_t f_center_34[] = {
+         2,  6, 10, 14, 18, 22, 26, 30,
+        34,-10, -6, -2, 51, 57, 15, 21,
+        27, 33, 39, 45, 54, 66, 78, 42,
+       102, 66, 78, 90,102,114,126, 90,
+    };
+    static const float fractional_delay_links[] = { 0.43f, 0.75f, 0.347f };
+    const float fractional_delay_gain = 0.39f;
+
+    for (pd0 = 0; pd0 < 8; pd0++) {
+        float pd0_re = ipdopd_cos[pd0];
+        float pd0_im = ipdopd_sin[pd0];
+        for (pd1 = 0; pd1 < 8; pd1++) {
+            float pd1_re = ipdopd_cos[pd1];
+            float pd1_im = ipdopd_sin[pd1];
+            for (pd2 = 0; pd2 < 8; pd2++) {
+                float pd2_re = ipdopd_cos[pd2];
+                float pd2_im = ipdopd_sin[pd2];
+                float re_smooth = 0.25f * pd0_re + 0.5f * pd1_re + pd2_re;
+                float im_smooth = 0.25f * pd0_im + 0.5f * pd1_im + pd2_im;
+                float pd_mag = 1 / hypot(im_smooth, re_smooth);
+                pd_re_smooth[pd0*64+pd1*8+pd2] = re_smooth * pd_mag;
+                pd_im_smooth[pd0*64+pd1*8+pd2] = im_smooth * pd_mag;
+            }
+        }
+    }
+
+    for (iid = 0; iid < 46; iid++) {
+        float c = iid_par_dequant[iid]; ///< Linear Inter-channel Intensity Difference
+        float c1 = (float)M_SQRT2 / sqrtf(1.0f + c*c);
+        float c2 = c * c1;
+        for (icc = 0; icc < 8; icc++) {
+            /*if (PS_BASELINE || ps->icc_mode < 3)*/ {
+                float alpha = 0.5f * acos_icc_invq[icc];
+                float beta  = alpha * (c1 - c2) * (float)M_SQRT1_2;
+                HA[iid][icc][0] = c2 * cosf(beta + alpha);
+                HA[iid][icc][1] = c1 * cosf(beta - alpha);
+                HA[iid][icc][2] = c2 * sinf(beta + alpha);
+                HA[iid][icc][3] = c1 * sinf(beta - alpha);
+            } /* else */ {
+                float alpha, gamma, mu, rho;
+                float alpha_c, alpha_s, gamma_c, gamma_s;
+                rho = FFMAX(icc_invq[icc], 0.05f);
+                alpha = 0.5f * atan2f(2.0f * c * rho, c*c - 1.0f);
+                mu = c + 1.0f / c;
+                mu = sqrtf(1 + (4 * rho * rho - 4)/(mu * mu));
+                gamma = atanf(sqrtf((1.0f - mu)/(1.0f + mu)));
+                if (alpha < 0) alpha += M_PI/2;
+                alpha_c = cosf(alpha);
+                alpha_s = sinf(alpha);
+                gamma_c = cosf(gamma);
+                gamma_s = sinf(gamma);
+                HB[iid][icc][0] =  M_SQRT2 * alpha_c * gamma_c;
+                HB[iid][icc][1] =  M_SQRT2 * alpha_s * gamma_c;
+                HB[iid][icc][2] = -M_SQRT2 * alpha_s * gamma_s;
+                HB[iid][icc][3] =  M_SQRT2 * alpha_c * gamma_s;
+            }
+        }
+    }
+
+    for (k = 0; k < NR_ALLPASS_BANDS20; k++) {
+        double f_center, theta;
+        if (k < FF_ARRAY_ELEMS(f_center_20))
+            f_center = f_center_20[k] * 0.125;
+        else
+            f_center = k - 6.5f;
+        for (m = 0; m < PS_AP_LINKS; m++) {
+            theta = -M_PI * fractional_delay_links[m] * f_center;
+            Q_fract_allpass[0][k][m][0] = cos(theta);
+            Q_fract_allpass[0][k][m][1] = sin(theta);
+        }
+        theta = -M_PI*fractional_delay_gain*f_center;
+        phi_fract[0][k][0] = cos(theta);
+        phi_fract[0][k][1] = sin(theta);
+    }
+    for (k = 0; k < NR_ALLPASS_BANDS34; k++) {
+        double f_center, theta;
+        if (k < FF_ARRAY_ELEMS(f_center_34))
+            f_center = f_center_34[k] / 24.0;
+        else
+            f_center = k - 26.5f;
+        for (m = 0; m < PS_AP_LINKS; m++) {
+            theta = -M_PI * fractional_delay_links[m] * f_center;
+            Q_fract_allpass[1][k][m][0] = cos(theta);
+            Q_fract_allpass[1][k][m][1] = sin(theta);
+        }
+        theta = -M_PI*fractional_delay_gain*f_center;
+        phi_fract[1][k][0] = cos(theta);
+        phi_fract[1][k][1] = sin(theta);
+    }
+
+    make_filters_from_proto(f20_0_8,  g0_Q8,   8);
+    make_filters_from_proto(f34_0_12, g0_Q12, 12);
+    make_filters_from_proto(f34_1_8,  g1_Q8,   8);
+    make_filters_from_proto(f34_2_4,  g2_Q4,   4);
+}
+#endif /* CONFIG_HARDCODED_TABLES */
+
+#endif /* AVCODEC_AACPS_TABLEGEN_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_tablegen_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_tablegen_template.c
new file mode 100644
index 000000000..341bd4440
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacps_tablegen_template.c
@@ -0,0 +1,107 @@
+/*
+ * Generate a header file for hardcoded Parametric Stereo tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#define CONFIG_HARDCODED_TABLES 0
+#include "aac_defines.h"
+
+#if USE_FIXED
+#define TYPE_NAME "int32_t"
+typedef int32_t INT32FLOAT;
+#define ARRAY_RENAME(x) write_int32_t_ ## x
+#define ARRAY_URENAME(x) write_uint32_t_ ## x
+#include "aacps_fixed_tablegen.h"
+#else
+#define TYPE_NAME "float"
+typedef float INT32FLOAT;
+#define ARRAY_RENAME(x) write_float_ ## x
+#define ARRAY_URENAME(x) write_float_ ## x
+#include "aacps_tablegen.h"
+#endif /* USE_FIXED */
+#include "tableprint.h"
+
+void ARRAY_RENAME(3d_array) (const void *p, int b, int c, int d)
+{
+    int i;
+    const INT32FLOAT *f = p;
+    for (i = 0; i < b; i++) {
+        printf("{\n");
+        ARRAY_URENAME(2d_array)(f, c, d);
+        printf("},\n");
+        f += c * d;
+    }
+}
+
+void ARRAY_RENAME(4d_array) (const void *p, int a, int b, int c, int d)
+{
+    int i;
+    const INT32FLOAT *f = p;
+    for (i = 0; i < a; i++) {
+        printf("{\n");
+        ARRAY_RENAME(3d_array)(f, b, c, d);
+        printf("},\n");
+        f += b * c * d;
+    }
+}
+
+int main(void)
+{
+    ps_tableinit();
+
+    write_fileheader();
+
+    printf("static const %s pd_re_smooth[8*8*8] = {\n", TYPE_NAME);
+    ARRAY_RENAME(array)(pd_re_smooth, 8*8*8);
+    printf("};\n");
+    printf("static const %s pd_im_smooth[8*8*8] = {\n", TYPE_NAME);
+    ARRAY_RENAME(array)(pd_im_smooth, 8*8*8);
+    printf("};\n");
+
+    printf("static const %s HA[46][8][4] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(HA, 46, 8, 4);
+    printf("};\n");
+    printf("static const %s HB[46][8][4] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(HB, 46, 8, 4);
+    printf("};\n");
+
+    printf("static const DECLARE_ALIGNED(16, %s, f20_0_8)[8][8][2] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(f20_0_8, 8, 8, 2);
+    printf("};\n");
+    printf("static const DECLARE_ALIGNED(16, %s, f34_0_12)[12][8][2] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(f34_0_12, 12, 8, 2);
+    printf("};\n");
+    printf("static const DECLARE_ALIGNED(16, %s, f34_1_8)[8][8][2] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(f34_1_8, 8, 8, 2);
+    printf("};\n");
+    printf("static const DECLARE_ALIGNED(16, %s, f34_2_4)[4][8][2] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(f34_2_4, 4, 8, 2);
+    printf("};\n");
+
+    printf("static const DECLARE_ALIGNED(16, %s, Q_fract_allpass)[2][50][3][2] = {\n", TYPE_NAME);
+    ARRAY_RENAME(4d_array)(Q_fract_allpass, 2, 50, 3, 2);
+    printf("};\n");
+    printf("static const DECLARE_ALIGNED(16, %s, phi_fract)[2][50][2] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(phi_fract, 2, 50, 2);
+    printf("};\n");
+
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdata.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdata.c
new file mode 100644
index 000000000..5c1a1b0f8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdata.c
@@ -0,0 +1,163 @@
+/*
+ * MPEG-4 Parametric Stereo data tables
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+static const uint8_t huff_iid_df1_bits[] = {
+    18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 18, 17, 17, 16, 16, 15, 14, 14,
+    13, 12, 12, 11, 10, 10,  8,  7,  6,  5,  4,  3,  1,  3,  4,  5,  6,  7,
+     8,  9, 10, 11, 11, 12, 13, 14, 14, 15, 16, 16, 17, 17, 18, 17, 18, 18,
+    18, 18, 18, 18, 18, 18, 18,
+};
+
+static const uint32_t huff_iid_df1_codes[] = {
+    0x01FEB4, 0x01FEB5, 0x01FD76, 0x01FD77, 0x01FD74, 0x01FD75, 0x01FE8A,
+    0x01FE8B, 0x01FE88, 0x00FE80, 0x01FEB6, 0x00FE82, 0x00FEB8, 0x007F42,
+    0x007FAE, 0x003FAF, 0x001FD1, 0x001FE9, 0x000FE9, 0x0007EA, 0x0007FB,
+    0x0003FB, 0x0001FB, 0x0001FF, 0x00007C, 0x00003C, 0x00001C, 0x00000C,
+    0x000000, 0x000001, 0x000001, 0x000002, 0x000001, 0x00000D, 0x00001D,
+    0x00003D, 0x00007D, 0x0000FC, 0x0001FC, 0x0003FC, 0x0003F4, 0x0007EB,
+    0x000FEA, 0x001FEA, 0x001FD6, 0x003FD0, 0x007FAF, 0x007F43, 0x00FEB9,
+    0x00FE83, 0x01FEB7, 0x00FE81, 0x01FE89, 0x01FE8E, 0x01FE8F, 0x01FE8C,
+    0x01FE8D, 0x01FEB2, 0x01FEB3, 0x01FEB0, 0x01FEB1,
+};
+
+static const uint8_t huff_iid_dt1_bits[] = {
+    16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13,
+    13, 13, 12, 12, 11, 10,  9,  9,  7,  6,  5,  3,  1,  2,  5,  6,  7,  8,
+     9, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16,
+    16, 16, 16, 16, 16, 16, 16,
+};
+
+static const uint16_t huff_iid_dt1_codes[] = {
+    0x004ED4, 0x004ED5, 0x004ECE, 0x004ECF, 0x004ECC, 0x004ED6, 0x004ED8,
+    0x004F46, 0x004F60, 0x002718, 0x002719, 0x002764, 0x002765, 0x00276D,
+    0x0027B1, 0x0013B7, 0x0013D6, 0x0009C7, 0x0009E9, 0x0009ED, 0x0004EE,
+    0x0004F7, 0x000278, 0x000139, 0x00009A, 0x00009F, 0x000020, 0x000011,
+    0x00000A, 0x000003, 0x000001, 0x000000, 0x00000B, 0x000012, 0x000021,
+    0x00004C, 0x00009B, 0x00013A, 0x000279, 0x000270, 0x0004EF, 0x0004E2,
+    0x0009EA, 0x0009D8, 0x0013D7, 0x0013D0, 0x0027B2, 0x0027A2, 0x00271A,
+    0x00271B, 0x004F66, 0x004F67, 0x004F61, 0x004F47, 0x004ED9, 0x004ED7,
+    0x004ECD, 0x004ED2, 0x004ED3, 0x004ED0, 0x004ED1,
+};
+
+static const uint8_t huff_iid_df0_bits[] = {
+    17, 17, 17, 17, 16, 15, 13, 10,  9,  7,  6,  5,  4,  3,  1,  3,  4,  5,
+     6,  6,  8, 11, 13, 14, 14, 15, 17, 18, 18,
+};
+
+static const uint32_t huff_iid_df0_codes[] = {
+    0x01FFFB, 0x01FFFC, 0x01FFFD, 0x01FFFA, 0x00FFFC, 0x007FFC, 0x001FFD,
+    0x0003FE, 0x0001FE, 0x00007E, 0x00003C, 0x00001D, 0x00000D, 0x000005,
+    0x000000, 0x000004, 0x00000C, 0x00001C, 0x00003D, 0x00003E, 0x0000FE,
+    0x0007FE, 0x001FFC, 0x003FFC, 0x003FFD, 0x007FFD, 0x01FFFE, 0x03FFFE,
+    0x03FFFF,
+};
+
+static const uint8_t huff_iid_dt0_bits[] = {
+    19, 19, 19, 20, 20, 20, 17, 15, 12, 10,  8,  6,  4,  2,  1,  3,  5,  7,
+     9, 11, 13, 14, 17, 19, 20, 20, 20, 20, 20,
+};
+
+static const uint32_t huff_iid_dt0_codes[] = {
+    0x07FFF9, 0x07FFFA, 0x07FFFB, 0x0FFFF8, 0x0FFFF9, 0x0FFFFA, 0x01FFFD,
+    0x007FFE, 0x000FFE, 0x0003FE, 0x0000FE, 0x00003E, 0x00000E, 0x000002,
+    0x000000, 0x000006, 0x00001E, 0x00007E, 0x0001FE, 0x0007FE, 0x001FFE,
+    0x003FFE, 0x01FFFC, 0x07FFF8, 0x0FFFFB, 0x0FFFFC, 0x0FFFFD, 0x0FFFFE,
+    0x0FFFFF,
+};
+
+static const uint8_t huff_icc_df_bits[] = {
+    14, 14, 12, 10, 7, 5, 3, 1, 2, 4, 6, 8, 9, 11, 13,
+};
+
+static const uint16_t huff_icc_df_codes[] = {
+    0x3FFF, 0x3FFE, 0x0FFE, 0x03FE, 0x007E, 0x001E, 0x0006, 0x0000,
+    0x0002, 0x000E, 0x003E, 0x00FE, 0x01FE, 0x07FE, 0x1FFE,
+};
+
+static const uint8_t huff_icc_dt_bits[] = {
+    14, 13, 11, 9, 7, 5, 3, 1, 2, 4, 6, 8, 10, 12, 14,
+};
+
+static const uint16_t huff_icc_dt_codes[] = {
+    0x3FFE, 0x1FFE, 0x07FE, 0x01FE, 0x007E, 0x001E, 0x0006, 0x0000,
+    0x0002, 0x000E, 0x003E, 0x00FE, 0x03FE, 0x0FFE, 0x3FFF,
+};
+
+static const uint8_t huff_ipd_df_bits[] = {
+    1, 3, 4, 4, 4, 4, 4, 4,
+};
+
+static const uint8_t huff_ipd_df_codes[] = {
+    0x01, 0x00, 0x06, 0x04, 0x02, 0x03, 0x05, 0x07,
+};
+
+static const uint8_t huff_ipd_dt_bits[] = {
+    1, 3, 4, 5, 5, 4, 4, 3,
+};
+
+static const uint8_t huff_ipd_dt_codes[] = {
+    0x01, 0x02, 0x02, 0x03, 0x02, 0x00, 0x03, 0x03,
+};
+
+static const uint8_t huff_opd_df_bits[] = {
+    1, 3, 4, 4, 5, 5, 4, 3,
+};
+
+static const uint8_t huff_opd_df_codes[] = {
+    0x01, 0x01, 0x06, 0x04, 0x0F, 0x0E, 0x05, 0x00,
+};
+
+static const uint8_t huff_opd_dt_bits[] = {
+    1, 3, 4, 5, 5, 4, 4, 3,
+};
+
+static const uint8_t huff_opd_dt_codes[] = {
+    0x01, 0x02, 0x01, 0x07, 0x06, 0x00, 0x02, 0x03,
+};
+
+static const int8_t huff_offset[] = {
+    30, 30,
+    14, 14,
+    7, 7,
+    0, 0,
+    0, 0,
+};
+
+///Table 8.48
+static const int8_t k_to_i_20[] = {
+     1,  0,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 14, 15,
+    15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18,
+    18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19
+};
+///Table 8.49
+static const int8_t k_to_i_34[] = {
+     0,  1,  2,  3,  4,  5,  6,  6,  7,  2,  1,  0, 10, 10,  4,  5,  6,  7,  8,
+     9, 10, 11, 12,  9, 14, 11, 12, 13, 14, 15, 16, 13, 16, 17, 18, 19, 20, 21,
+    22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, 27, 28, 28, 28, 29, 29, 29,
+    30, 30, 30, 31, 31, 31, 31, 32, 32, 32, 32, 33, 33, 33, 33, 33, 33, 33, 33,
+    33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33
+};
+
+static const INTFLOAT g1_Q2[] = {
+    Q31(0.0f),  Q31(0.01899487526049f), Q31(0.0f), Q31(-0.07293139167538f),
+    Q31(0.0f),  Q31(0.30596630545168f), Q31(0.5f)
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp.asm
new file mode 100644
index 000000000..4acd087c8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp.asm
@@ -0,0 +1,487 @@
+;******************************************************************************
+;* SIMD optimized MPEG-4 Parametric Stereo decoding functions
+;*
+;* Copyright (C) 2015 James Almer
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION_RODATA
+
+ps_p1m1p1m1: dd 0, 0x80000000, 0, 0x80000000
+
+SECTION .text
+
+;*************************************************************************
+;void ff_ps_add_squares_<opt>(float *dst, const float (*src)[2], int n);
+;*************************************************************************
+%macro PS_ADD_SQUARES 1
+cglobal ps_add_squares, 3, 3, %1, dst, src, n
+    shl    nd, 3
+    add  srcq, nq
+    neg    nq
+
+align 16
+.loop:
+    movaps m0, [srcq+nq]
+    movaps m1, [srcq+nq+mmsize]
+    mulps  m0, m0
+    mulps  m1, m1
+    HADDPS m0, m1, m2
+    addps  m0, [dstq]
+    movaps [dstq], m0
+    add  dstq, mmsize
+    add    nq, mmsize*2
+    jl .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+PS_ADD_SQUARES 2
+INIT_XMM sse3
+PS_ADD_SQUARES 3
+
+;*******************************************************************
+;void ff_ps_mul_pair_single_sse(float (*dst)[2], float (*src0)[2],
+;                                   float *src1, int n);
+;*******************************************************************
+INIT_XMM sse
+cglobal ps_mul_pair_single, 4, 4, 4, dst, src1, src2, n
+    shl      nd, 3
+    add   src1q, nq
+    add    dstq, nq
+    neg      nq
+
+align 16
+.loop:
+    movu     m0, [src1q+nq]
+    movu     m1, [src1q+nq+mmsize]
+    mova     m2, [src2q]
+    mova     m3, m2
+    unpcklps m2, m2
+    unpckhps m3, m3
+    mulps    m0, m2
+    mulps    m1, m3
+    mova [dstq+nq], m0
+    mova [dstq+nq+mmsize], m1
+    add   src2q, mmsize
+    add      nq, mmsize*2
+    jl .loop
+    REP_RET
+
+;***********************************************************************
+;void ff_ps_stereo_interpolate_sse3(float (*l)[2], float (*r)[2],
+;                                   float h[2][4], float h_step[2][4],
+;                                   int len);
+;***********************************************************************
+INIT_XMM sse3
+cglobal ps_stereo_interpolate, 5, 5, 6, l, r, h, h_step, n
+    movaps   m0, [hq]
+    movaps   m1, [h_stepq]
+    unpcklps m4, m0, m0
+    unpckhps m0, m0
+    unpcklps m5, m1, m1
+    unpckhps m1, m1
+    shl      nd, 3
+    add      lq, nq
+    add      rq, nq
+    neg      nq
+
+align 16
+.loop:
+    addps    m4, m5
+    addps    m0, m1
+    movddup  m2, [lq+nq]
+    movddup  m3, [rq+nq]
+    mulps    m2, m4
+    mulps    m3, m0
+    addps    m2, m3
+    movsd  [lq+nq], m2
+    movhps [rq+nq], m2
+    add      nq, 8
+    jl .loop
+    REP_RET
+
+;***************************************************************************
+;void ps_stereo_interpolate_ipdopd_sse3(float (*l)[2], float (*r)[2],
+;                                       float h[2][4], float h_step[2][4],
+;                                       int len);
+;***************************************************************************
+INIT_XMM sse3
+cglobal ps_stereo_interpolate_ipdopd, 5, 5, 10, l, r, h, h_step, n
+    movaps   m0, [hq]
+    movaps   m1, [hq+mmsize]
+%if ARCH_X86_64
+    movaps   m8, [h_stepq]
+    movaps   m9, [h_stepq+mmsize]
+    %define  H_STEP0 m8
+    %define  H_STEP1 m9
+%else
+    %define  H_STEP0 [h_stepq]
+    %define  H_STEP1 [h_stepq+mmsize]
+%endif
+    shl      nd, 3
+    add      lq, nq
+    add      rq, nq
+    neg      nq
+
+align 16
+.loop:
+    addps    m0, H_STEP0
+    addps    m1, H_STEP1
+    movddup  m2, [lq+nq]
+    movddup  m3, [rq+nq]
+    shufps   m4, m2, m2, q2301
+    shufps   m5, m3, m3, q2301
+    unpcklps m6, m0, m0
+    unpckhps m7, m0, m0
+    mulps    m2, m6
+    mulps    m3, m7
+    unpcklps m6, m1, m1
+    unpckhps m7, m1, m1
+    mulps    m4, m6
+    mulps    m5, m7
+    addps    m2, m3
+    addsubps m2, m4
+    addsubps m2, m5
+    movsd  [lq+nq], m2
+    movhps [rq+nq], m2
+    add      nq, 8
+    jl .loop
+    REP_RET
+
+;**********************************************************
+;void ps_hybrid_analysis_ileave_sse(float out[2][38][64],
+;                                   float (*in)[32][2],
+;                                   int i, int len)
+;**********************************************************
+INIT_XMM sse
+cglobal ps_hybrid_analysis_ileave, 3, 7, 5, out, in, i, len, in0, in1, tmp
+    movsxdifnidn        iq, id
+    mov               lend, 32 << 3
+    lea                inq, [inq+iq*4]
+    mov               tmpd, id
+    shl               tmpd, 8
+    add               outq, tmpq
+    mov               tmpd, 64
+    sub               tmpd, id
+    mov                 id, tmpd
+
+    test                id, 1
+    jne .loop4
+    test                id, 2
+    jne .loop8
+
+align 16
+.loop16:
+    mov               in0q, inq
+    mov               in1q, 38*64*4
+    add               in1q, in0q
+    mov               tmpd, lend
+
+.inner_loop16:
+    movaps              m0, [in0q]
+    movaps              m1, [in1q]
+    movaps              m2, [in0q+lenq]
+    movaps              m3, [in1q+lenq]
+    TRANSPOSE4x4PS 0, 1, 2, 3, 4
+    movaps          [outq], m0
+    movaps     [outq+lenq], m1
+    movaps   [outq+lenq*2], m2
+    movaps [outq+3*32*2*4], m3
+    lea               in0q, [in0q+lenq*2]
+    lea               in1q, [in1q+lenq*2]
+    add               outq, mmsize
+    sub               tmpd, mmsize
+    jg .inner_loop16
+    add                inq, 16
+    add               outq, 3*32*2*4
+    sub                 id, 4
+    jg .loop16
+    RET
+
+align 16
+.loop8:
+    mov               in0q, inq
+    mov               in1q, 38*64*4
+    add               in1q, in0q
+    mov               tmpd, lend
+
+.inner_loop8:
+    movlps              m0, [in0q]
+    movlps              m1, [in1q]
+    movhps              m0, [in0q+lenq]
+    movhps              m1, [in1q+lenq]
+    SBUTTERFLYPS 0, 1, 2
+    SBUTTERFLYPD 0, 1, 2
+    movaps          [outq], m0
+    movaps     [outq+lenq], m1
+    lea               in0q, [in0q+lenq*2]
+    lea               in1q, [in1q+lenq*2]
+    add               outq, mmsize
+    sub               tmpd, mmsize
+    jg .inner_loop8
+    add                inq, 8
+    add               outq, lenq
+    sub                 id, 2
+    jg .loop16
+    RET
+
+align 16
+.loop4:
+    mov               in0q, inq
+    mov               in1q, 38*64*4
+    add               in1q, in0q
+    mov               tmpd, lend
+
+.inner_loop4:
+    movss               m0, [in0q]
+    movss               m1, [in1q]
+    movss               m2, [in0q+lenq]
+    movss               m3, [in1q+lenq]
+    movlhps             m0, m1
+    movlhps             m2, m3
+    shufps              m0, m2, q2020
+    movaps          [outq], m0
+    lea               in0q, [in0q+lenq*2]
+    lea               in1q, [in1q+lenq*2]
+    add               outq, mmsize
+    sub               tmpd, mmsize
+    jg .inner_loop4
+    add                inq, 4
+    sub                 id, 1
+    test                id, 2
+    jne .loop8
+    cmp                 id, 4
+    jge .loop16
+    RET
+
+;***********************************************************
+;void ps_hybrid_synthesis_deint_sse4(float out[2][38][64],
+;                                    float (*in)[32][2],
+;                                    int i, int len)
+;***********************************************************
+%macro HYBRID_SYNTHESIS_DEINT 0
+cglobal ps_hybrid_synthesis_deint, 3, 7, 5, out, in, i, len, out0, out1, tmp
+%if cpuflag(sse4)
+%define MOVH movsd
+%else
+%define MOVH movlps
+%endif
+    movsxdifnidn        iq, id
+    mov               lend, 32 << 3
+    lea               outq, [outq+iq*4]
+    mov               tmpd, id
+    shl               tmpd, 8
+    add                inq, tmpq
+    mov               tmpd, 64
+    sub               tmpd, id
+    mov                 id, tmpd
+
+    test                id, 1
+    jne .loop4
+    test                id, 2
+    jne .loop8
+
+align 16
+.loop16:
+    mov              out0q, outq
+    mov              out1q, 38*64*4
+    add              out1q, out0q
+    mov               tmpd, lend
+
+.inner_loop16:
+    movaps              m0, [inq]
+    movaps              m1, [inq+lenq]
+    movaps              m2, [inq+lenq*2]
+    movaps              m3, [inq+3*32*2*4]
+    TRANSPOSE4x4PS 0, 1, 2, 3, 4
+    movaps         [out0q], m0
+    movaps         [out1q], m1
+    movaps    [out0q+lenq], m2
+    movaps    [out1q+lenq], m3
+    lea              out0q, [out0q+lenq*2]
+    lea              out1q, [out1q+lenq*2]
+    add                inq, mmsize
+    sub               tmpd, mmsize
+    jg .inner_loop16
+    add               outq, 16
+    add                inq, 3*32*2*4
+    sub                 id, 4
+    jg .loop16
+    RET
+
+align 16
+.loop8:
+    mov              out0q, outq
+    mov              out1q, 38*64*4
+    add              out1q, out0q
+    mov               tmpd, lend
+
+.inner_loop8:
+    movaps              m0, [inq]
+    movaps              m1, [inq+lenq]
+    SBUTTERFLYPS 0, 1, 2
+    SBUTTERFLYPD 0, 1, 2
+    MOVH           [out0q], m0
+    MOVH           [out1q], m1
+    movhps    [out0q+lenq], m0
+    movhps    [out1q+lenq], m1
+    lea              out0q, [out0q+lenq*2]
+    lea              out1q, [out1q+lenq*2]
+    add                inq, mmsize
+    sub               tmpd, mmsize
+    jg .inner_loop8
+    add               outq, 8
+    add                inq, lenq
+    sub                 id, 2
+    jg .loop16
+    RET
+
+align 16
+.loop4:
+    mov              out0q, outq
+    mov              out1q, 38*64*4
+    add              out1q, out0q
+    mov               tmpd, lend
+
+.inner_loop4:
+    movaps              m0, [inq]
+    movss          [out0q], m0
+%if cpuflag(sse4)
+    extractps      [out1q], m0, 1
+    extractps [out0q+lenq], m0, 2
+    extractps [out1q+lenq], m0, 3
+%else
+    movhlps             m1, m0
+    movss     [out0q+lenq], m1
+    shufps              m0, m0, 0xb1
+    movss          [out1q], m0
+    movhlps             m1, m0
+    movss     [out1q+lenq], m1
+%endif
+    lea              out0q, [out0q+lenq*2]
+    lea              out1q, [out1q+lenq*2]
+    add                inq, mmsize
+    sub               tmpd, mmsize
+    jg .inner_loop4
+    add               outq, 4
+    sub                 id, 1
+    test                id, 2
+    jne .loop8
+    cmp                 id, 4
+    jge .loop16
+    RET
+%endmacro
+
+INIT_XMM sse
+HYBRID_SYNTHESIS_DEINT
+INIT_XMM sse4
+HYBRID_SYNTHESIS_DEINT
+
+;*******************************************************************
+;void ff_ps_hybrid_analysis_<opt>(float (*out)[2], float (*in)[2],
+;                                 const float (*filter)[8][2],
+;                                 ptrdiff_t stride, int n);
+;*******************************************************************
+%macro PS_HYBRID_ANALYSIS_LOOP 3
+    movu     %1, [inq+mmsize*%3]
+    movu     m1, [inq+mmsize*(5-%3)+8]
+%if cpuflag(sse3)
+    pshufd   %2, %1, q2301
+    pshufd   m4, m1, q0123
+    pshufd   m1, m1, q1032
+    pshufd   m2, [filterq+nq+mmsize*%3], q2301
+    addsubps %2, m4
+    addsubps %1, m1
+%else
+    mova     m2, [filterq+nq+mmsize*%3]
+    mova     %2, %1
+    mova     m4, m1
+    shufps   %2, %2, q2301
+    shufps   m4, m4, q0123
+    shufps   m1, m1, q1032
+    shufps   m2, m2, q2301
+    xorps    m4, m7
+    xorps    m1, m7
+    subps    %2, m4
+    subps    %1, m1
+%endif
+    mulps    %2, m2
+    mulps    %1, m2
+%if %3
+    addps    m3, %2
+    addps    m0, %1
+%endif
+%endmacro
+
+%macro PS_HYBRID_ANALYSIS 0
+cglobal ps_hybrid_analysis, 5, 5, 8, out, in, filter, stride, n
+%if cpuflag(sse3)
+%define MOVH movsd
+%else
+%define MOVH movlps
+%endif
+    shl strideq, 3
+    shl nd, 6
+    add filterq, nq
+    neg nq
+    mova m7, [ps_p1m1p1m1]
+
+align 16
+.loop:
+    PS_HYBRID_ANALYSIS_LOOP m0, m3, 0
+    PS_HYBRID_ANALYSIS_LOOP m5, m6, 1
+    PS_HYBRID_ANALYSIS_LOOP m5, m6, 2
+
+%if cpuflag(sse3)
+    pshufd   m3, m3, q2301
+    xorps    m0, m7
+    hsubps   m3, m0
+    pshufd   m1, m3, q0020
+    pshufd   m3, m3, q0031
+    addps    m1, m3
+    movsd    m2, [inq+6*8]
+%else
+    mova     m1, m3
+    mova     m2, m0
+    shufps   m1, m1, q2301
+    shufps   m2, m2, q2301
+    subps    m1, m3
+    addps    m2, m0
+    unpcklps m3, m1, m2
+    unpckhps m1, m2
+    addps    m1, m3
+    movu     m2, [inq+6*8] ; faster than movlps and no risk of overread
+%endif
+    movss    m3, [filterq+nq+8*6]
+    SPLATD   m3
+    mulps    m2, m3
+    addps    m1, m2
+    MOVH [outq], m1
+    add    outq, strideq
+    add      nq, 64
+    jl .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+PS_HYBRID_ANALYSIS
+INIT_XMM sse3
+PS_HYBRID_ANALYSIS
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp.h
new file mode 100644
index 000000000..917ac5303
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2012 Mans Rullgard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AACPSDSP_H
+#define AVCODEC_AACPSDSP_H
+
+#include <stddef.h>
+
+#include "aac_defines.h"
+
+#define PS_QMF_TIME_SLOTS 32
+#define PS_AP_LINKS 3
+#define PS_MAX_AP_DELAY 5
+
+typedef struct PSDSPContext {
+    void (*add_squares)(INTFLOAT *dst, const INTFLOAT (*src)[2], int n);
+    void (*mul_pair_single)(INTFLOAT (*dst)[2], INTFLOAT (*src0)[2], INTFLOAT *src1,
+                            int n);
+    void (*hybrid_analysis)(INTFLOAT (*out)[2], INTFLOAT (*in)[2],
+                            const INTFLOAT (*filter)[8][2],
+                            ptrdiff_t stride, int n);
+    void (*hybrid_analysis_ileave)(INTFLOAT (*out)[32][2], INTFLOAT L[2][38][64],
+                                   int i, int len);
+    void (*hybrid_synthesis_deint)(INTFLOAT out[2][38][64], INTFLOAT (*in)[32][2],
+                                   int i, int len);
+    void (*decorrelate)(INTFLOAT (*out)[2], INTFLOAT (*delay)[2],
+                        INTFLOAT (*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2],
+                        const INTFLOAT phi_fract[2], const INTFLOAT (*Q_fract)[2],
+                        const INTFLOAT *transient_gain,
+                        INTFLOAT g_decay_slope,
+                        int len);
+    void (*stereo_interpolate[2])(INTFLOAT (*l)[2], INTFLOAT (*r)[2],
+                                  INTFLOAT h[2][4], INTFLOAT h_step[2][4],
+                                  int len);
+} PSDSPContext;
+
+void AAC_RENAME(ff_psdsp_init)(PSDSPContext *s);
+void ff_psdsp_init_arm(PSDSPContext *s);
+void ff_psdsp_init_aarch64(PSDSPContext *s);
+void ff_psdsp_init_mips(PSDSPContext *s);
+void ff_psdsp_init_x86(PSDSPContext *s);
+
+#endif /* AVCODEC_AACPSDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp_fixed.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp_fixed.c
new file mode 100644
index 000000000..241329511
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp_fixed.c
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 1
+
+#include "aacpsdsp_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp_float.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp_float.c
new file mode 100644
index 000000000..99aa650ac
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp_float.c
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 0
+
+#include "aacpsdsp_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp_init.c
new file mode 100644
index 000000000..21f00efa2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp_init.c
@@ -0,0 +1,72 @@
+/*
+ * SIMD optimized MPEG-4 Parametric Stereo decoding functions
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+
+#include "config.h"
+
+#include "libavutil/x86/cpu.h"
+#include "libavutil/attributes.h"
+#include "libavcodec/aacpsdsp.h"
+
+void ff_ps_add_squares_sse  (float *dst, const float (*src)[2], int n);
+void ff_ps_add_squares_sse3 (float *dst, const float (*src)[2], int n);
+void ff_ps_mul_pair_single_sse (float (*dst)[2], float (*src0)[2],
+                                float *src1, int n);
+void ff_ps_hybrid_analysis_sse (float (*out)[2], float (*in)[2],
+                                const float (*filter)[8][2],
+                                ptrdiff_t stride, int n);
+void ff_ps_hybrid_analysis_sse3(float (*out)[2], float (*in)[2],
+                                const float (*filter)[8][2],
+                                ptrdiff_t stride, int n);
+void ff_ps_stereo_interpolate_sse3(float (*l)[2], float (*r)[2],
+                                   float h[2][4], float h_step[2][4],
+                                   int len);
+void ff_ps_stereo_interpolate_ipdopd_sse3(float (*l)[2], float (*r)[2],
+                                          float h[2][4], float h_step[2][4],
+                                          int len);
+void ff_ps_hybrid_synthesis_deint_sse(float out[2][38][64], float (*in)[32][2],
+                                      int i, int len);
+void ff_ps_hybrid_synthesis_deint_sse4(float out[2][38][64], float (*in)[32][2],
+                                       int i, int len);
+void ff_ps_hybrid_analysis_ileave_sse(float (*out)[32][2], float L[2][38][64],
+                                      int i, int len);
+
+av_cold void ff_psdsp_init_x86(PSDSPContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        s->add_squares            = ff_ps_add_squares_sse;
+        s->mul_pair_single        = ff_ps_mul_pair_single_sse;
+        s->hybrid_analysis_ileave = ff_ps_hybrid_analysis_ileave_sse;
+        s->hybrid_synthesis_deint = ff_ps_hybrid_synthesis_deint_sse;
+        s->hybrid_analysis        = ff_ps_hybrid_analysis_sse;
+    }
+    if (EXTERNAL_SSE3(cpu_flags)) {
+        s->add_squares            = ff_ps_add_squares_sse3;
+        s->stereo_interpolate[0]  = ff_ps_stereo_interpolate_sse3;
+        s->stereo_interpolate[1]  = ff_ps_stereo_interpolate_ipdopd_sse3;
+        s->hybrid_analysis        = ff_ps_hybrid_analysis_sse3;
+    }
+    if (EXTERNAL_SSE4(cpu_flags)) {
+        s->hybrid_synthesis_deint = ff_ps_hybrid_synthesis_deint_sse4;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp_template.c
new file mode 100644
index 000000000..eef8adc7e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsdsp_template.c
@@ -0,0 +1,233 @@
+/*
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Note: Rounding-to-nearest used unless otherwise stated
+ *
+ */
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "aacpsdsp.h"
+
+static void ps_add_squares_c(INTFLOAT *dst, const INTFLOAT (*src)[2], int n)
+{
+    int i;
+    for (i = 0; i < n; i++)
+        dst[i] += (UINTFLOAT)AAC_MADD28(src[i][0], src[i][0], src[i][1], src[i][1]);
+}
+
+static void ps_mul_pair_single_c(INTFLOAT (*dst)[2], INTFLOAT (*src0)[2], INTFLOAT *src1,
+                                 int n)
+{
+    int i;
+    for (i = 0; i < n; i++) {
+        dst[i][0] = AAC_MUL16(src0[i][0], src1[i]);
+        dst[i][1] = AAC_MUL16(src0[i][1], src1[i]);
+    }
+}
+
+static void ps_hybrid_analysis_c(INTFLOAT (*out)[2], INTFLOAT (*in)[2],
+                                 const INTFLOAT (*filter)[8][2],
+                                 ptrdiff_t stride, int n)
+{
+    int i, j;
+
+    for (i = 0; i < n; i++) {
+        INT64FLOAT sum_re = (INT64FLOAT)filter[i][6][0] * in[6][0];
+        INT64FLOAT sum_im = (INT64FLOAT)filter[i][6][0] * in[6][1];
+
+        for (j = 0; j < 6; j++) {
+            INT64FLOAT in0_re = in[j][0];
+            INT64FLOAT in0_im = in[j][1];
+            INT64FLOAT in1_re = in[12-j][0];
+            INT64FLOAT in1_im = in[12-j][1];
+            sum_re += (INT64FLOAT)filter[i][j][0] * (in0_re + in1_re) -
+                      (INT64FLOAT)filter[i][j][1] * (in0_im - in1_im);
+            sum_im += (INT64FLOAT)filter[i][j][0] * (in0_im + in1_im) +
+                      (INT64FLOAT)filter[i][j][1] * (in0_re - in1_re);
+        }
+#if USE_FIXED
+        out[i * stride][0] = (int)((sum_re + 0x40000000) >> 31);
+        out[i * stride][1] = (int)((sum_im + 0x40000000) >> 31);
+#else
+        out[i * stride][0] = sum_re;
+        out[i * stride][1] = sum_im;
+#endif /* USE_FIXED */
+    }
+}
+
+static void ps_hybrid_analysis_ileave_c(INTFLOAT (*out)[32][2], INTFLOAT L[2][38][64],
+                                      int i, int len)
+{
+    int j;
+
+    for (; i < 64; i++) {
+        for (j = 0; j < len; j++) {
+            out[i][j][0] = L[0][j][i];
+            out[i][j][1] = L[1][j][i];
+        }
+    }
+}
+
+static void ps_hybrid_synthesis_deint_c(INTFLOAT out[2][38][64],
+                                      INTFLOAT (*in)[32][2],
+                                      int i, int len)
+{
+    int n;
+
+    for (; i < 64; i++) {
+        for (n = 0; n < len; n++) {
+            out[0][n][i] = in[i][n][0];
+            out[1][n][i] = in[i][n][1];
+        }
+    }
+}
+
+static void ps_decorrelate_c(INTFLOAT (*out)[2], INTFLOAT (*delay)[2],
+                             INTFLOAT (*ap_delay)[PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2],
+                             const INTFLOAT phi_fract[2], const INTFLOAT (*Q_fract)[2],
+                             const INTFLOAT *transient_gain,
+                             INTFLOAT g_decay_slope,
+                             int len)
+{
+    static const INTFLOAT a[] = { Q31(0.65143905753106f),
+                               Q31(0.56471812200776f),
+                               Q31(0.48954165955695f) };
+    INTFLOAT ag[PS_AP_LINKS];
+    int m, n;
+
+    for (m = 0; m < PS_AP_LINKS; m++)
+        ag[m] = AAC_MUL30(a[m], g_decay_slope);
+
+    for (n = 0; n < len; n++) {
+        INTFLOAT in_re = AAC_MSUB30(delay[n][0], phi_fract[0], delay[n][1], phi_fract[1]);
+        INTFLOAT in_im = AAC_MADD30(delay[n][0], phi_fract[1], delay[n][1], phi_fract[0]);
+        for (m = 0; m < PS_AP_LINKS; m++) {
+            INTFLOAT a_re                = AAC_MUL31(ag[m], in_re);
+            INTFLOAT a_im                = AAC_MUL31(ag[m], in_im);
+            INTFLOAT link_delay_re       = ap_delay[m][n+2-m][0];
+            INTFLOAT link_delay_im       = ap_delay[m][n+2-m][1];
+            INTFLOAT fractional_delay_re = Q_fract[m][0];
+            INTFLOAT fractional_delay_im = Q_fract[m][1];
+            INTFLOAT apd_re = in_re;
+            INTFLOAT apd_im = in_im;
+            in_re = AAC_MSUB30(link_delay_re, fractional_delay_re,
+                    link_delay_im, fractional_delay_im);
+            in_re -= (UINTFLOAT)a_re;
+            in_im = AAC_MADD30(link_delay_re, fractional_delay_im,
+                    link_delay_im, fractional_delay_re);
+            in_im -= (UINTFLOAT)a_im;
+            ap_delay[m][n+5][0] = apd_re + (UINTFLOAT)AAC_MUL31(ag[m], in_re);
+            ap_delay[m][n+5][1] = apd_im + (UINTFLOAT)AAC_MUL31(ag[m], in_im);
+        }
+        out[n][0] = AAC_MUL16(transient_gain[n], in_re);
+        out[n][1] = AAC_MUL16(transient_gain[n], in_im);
+    }
+}
+
+static void ps_stereo_interpolate_c(INTFLOAT (*l)[2], INTFLOAT (*r)[2],
+                                    INTFLOAT h[2][4], INTFLOAT h_step[2][4],
+                                    int len)
+{
+    INTFLOAT h0 = h[0][0];
+    INTFLOAT h1 = h[0][1];
+    INTFLOAT h2 = h[0][2];
+    INTFLOAT h3 = h[0][3];
+    UINTFLOAT hs0 = h_step[0][0];
+    UINTFLOAT hs1 = h_step[0][1];
+    UINTFLOAT hs2 = h_step[0][2];
+    UINTFLOAT hs3 = h_step[0][3];
+    int n;
+
+    for (n = 0; n < len; n++) {
+        //l is s, r is d
+        INTFLOAT l_re = l[n][0];
+        INTFLOAT l_im = l[n][1];
+        INTFLOAT r_re = r[n][0];
+        INTFLOAT r_im = r[n][1];
+        h0 += hs0;
+        h1 += hs1;
+        h2 += hs2;
+        h3 += hs3;
+        l[n][0] = AAC_MADD30(h0, l_re, h2, r_re);
+        l[n][1] = AAC_MADD30(h0, l_im, h2, r_im);
+        r[n][0] = AAC_MADD30(h1, l_re, h3, r_re);
+        r[n][1] = AAC_MADD30(h1, l_im, h3, r_im);
+    }
+}
+
+static void ps_stereo_interpolate_ipdopd_c(INTFLOAT (*l)[2], INTFLOAT (*r)[2],
+                                           INTFLOAT h[2][4], INTFLOAT h_step[2][4],
+                                           int len)
+{
+    INTFLOAT h00  = h[0][0],      h10  = h[1][0];
+    INTFLOAT h01  = h[0][1],      h11  = h[1][1];
+    INTFLOAT h02  = h[0][2],      h12  = h[1][2];
+    INTFLOAT h03  = h[0][3],      h13  = h[1][3];
+    UINTFLOAT hs00 = h_step[0][0], hs10 = h_step[1][0];
+    UINTFLOAT hs01 = h_step[0][1], hs11 = h_step[1][1];
+    UINTFLOAT hs02 = h_step[0][2], hs12 = h_step[1][2];
+    UINTFLOAT hs03 = h_step[0][3], hs13 = h_step[1][3];
+    int n;
+
+    for (n = 0; n < len; n++) {
+        //l is s, r is d
+        INTFLOAT l_re = l[n][0];
+        INTFLOAT l_im = l[n][1];
+        INTFLOAT r_re = r[n][0];
+        INTFLOAT r_im = r[n][1];
+        h00 += hs00;
+        h01 += hs01;
+        h02 += hs02;
+        h03 += hs03;
+        h10 += hs10;
+        h11 += hs11;
+        h12 += hs12;
+        h13 += hs13;
+
+        l[n][0] = AAC_MSUB30_V8(h00, l_re, h02, r_re, h10, l_im, h12, r_im);
+        l[n][1] = AAC_MADD30_V8(h00, l_im, h02, r_im, h10, l_re, h12, r_re);
+        r[n][0] = AAC_MSUB30_V8(h01, l_re, h03, r_re, h11, l_im, h13, r_im);
+        r[n][1] = AAC_MADD30_V8(h01, l_im, h03, r_im, h11, l_re, h13, r_re);
+    }
+}
+
+av_cold void AAC_RENAME(ff_psdsp_init)(PSDSPContext *s)
+{
+    s->add_squares            = ps_add_squares_c;
+    s->mul_pair_single        = ps_mul_pair_single_c;
+    s->hybrid_analysis        = ps_hybrid_analysis_c;
+    s->hybrid_analysis_ileave = ps_hybrid_analysis_ileave_c;
+    s->hybrid_synthesis_deint = ps_hybrid_synthesis_deint_c;
+    s->decorrelate            = ps_decorrelate_c;
+    s->stereo_interpolate[0]  = ps_stereo_interpolate_c;
+    s->stereo_interpolate[1]  = ps_stereo_interpolate_ipdopd_c;
+
+#if !USE_FIXED
+    if (ARCH_ARM)
+        ff_psdsp_init_arm(s);
+    if (ARCH_AARCH64)
+        ff_psdsp_init_aarch64(s);
+    if (ARCH_MIPS)
+        ff_psdsp_init_mips(s);
+    if (ARCH_X86)
+        ff_psdsp_init_x86(s);
+#endif /* !USE_FIXED */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsy.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsy.c
new file mode 100644
index 000000000..fca692cb1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacpsy.c
@@ -0,0 +1,1025 @@
+/*
+ * AAC encoder psychoacoustic model
+ * Copyright (C) 2008 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder psychoacoustic model
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/ffmath.h"
+
+#include "avcodec.h"
+#include "aactab.h"
+#include "psymodel.h"
+
+/***********************************
+ *              TODOs:
+ * try other bitrate controlling mechanism (maybe use ratecontrol.c?)
+ * control quality for quality-based output
+ **********************************/
+
+/**
+ * constants for 3GPP AAC psychoacoustic model
+ * @{
+ */
+#define PSY_3GPP_THR_SPREAD_HI   1.5f // spreading factor for low-to-hi threshold spreading  (15 dB/Bark)
+#define PSY_3GPP_THR_SPREAD_LOW  3.0f // spreading factor for hi-to-low threshold spreading  (30 dB/Bark)
+/* spreading factor for low-to-hi energy spreading, long block, > 22kbps/channel (20dB/Bark) */
+#define PSY_3GPP_EN_SPREAD_HI_L1 2.0f
+/* spreading factor for low-to-hi energy spreading, long block, <= 22kbps/channel (15dB/Bark) */
+#define PSY_3GPP_EN_SPREAD_HI_L2 1.5f
+/* spreading factor for low-to-hi energy spreading, short block (15 dB/Bark) */
+#define PSY_3GPP_EN_SPREAD_HI_S  1.5f
+/* spreading factor for hi-to-low energy spreading, long block (30dB/Bark) */
+#define PSY_3GPP_EN_SPREAD_LOW_L 3.0f
+/* spreading factor for hi-to-low energy spreading, short block (20dB/Bark) */
+#define PSY_3GPP_EN_SPREAD_LOW_S 2.0f
+
+#define PSY_3GPP_RPEMIN      0.01f
+#define PSY_3GPP_RPELEV      2.0f
+
+#define PSY_3GPP_C1          3.0f           /* log2(8) */
+#define PSY_3GPP_C2          1.3219281f     /* log2(2.5) */
+#define PSY_3GPP_C3          0.55935729f    /* 1 - C2 / C1 */
+
+#define PSY_SNR_1DB          7.9432821e-1f  /* -1dB */
+#define PSY_SNR_25DB         3.1622776e-3f  /* -25dB */
+
+#define PSY_3GPP_SAVE_SLOPE_L  -0.46666667f
+#define PSY_3GPP_SAVE_SLOPE_S  -0.36363637f
+#define PSY_3GPP_SAVE_ADD_L    -0.84285712f
+#define PSY_3GPP_SAVE_ADD_S    -0.75f
+#define PSY_3GPP_SPEND_SLOPE_L  0.66666669f
+#define PSY_3GPP_SPEND_SLOPE_S  0.81818181f
+#define PSY_3GPP_SPEND_ADD_L   -0.35f
+#define PSY_3GPP_SPEND_ADD_S   -0.26111111f
+#define PSY_3GPP_CLIP_LO_L      0.2f
+#define PSY_3GPP_CLIP_LO_S      0.2f
+#define PSY_3GPP_CLIP_HI_L      0.95f
+#define PSY_3GPP_CLIP_HI_S      0.75f
+
+#define PSY_3GPP_AH_THR_LONG    0.5f
+#define PSY_3GPP_AH_THR_SHORT   0.63f
+
+#define PSY_PE_FORGET_SLOPE  511
+
+enum {
+    PSY_3GPP_AH_NONE,
+    PSY_3GPP_AH_INACTIVE,
+    PSY_3GPP_AH_ACTIVE
+};
+
+#define PSY_3GPP_BITS_TO_PE(bits) ((bits) * 1.18f)
+#define PSY_3GPP_PE_TO_BITS(bits) ((bits) / 1.18f)
+
+/* LAME psy model constants */
+#define PSY_LAME_FIR_LEN 21         ///< LAME psy model FIR order
+#define AAC_BLOCK_SIZE_LONG 1024    ///< long block size
+#define AAC_BLOCK_SIZE_SHORT 128    ///< short block size
+#define AAC_NUM_BLOCKS_SHORT 8      ///< number of blocks in a short sequence
+#define PSY_LAME_NUM_SUBBLOCKS 3    ///< Number of sub-blocks in each short block
+
+/**
+ * @}
+ */
+
+/**
+ * information for single band used by 3GPP TS26.403-inspired psychoacoustic model
+ */
+typedef struct AacPsyBand{
+    float energy;       ///< band energy
+    float thr;          ///< energy threshold
+    float thr_quiet;    ///< threshold in quiet
+    float nz_lines;     ///< number of non-zero spectral lines
+    float active_lines; ///< number of active spectral lines
+    float pe;           ///< perceptual entropy
+    float pe_const;     ///< constant part of the PE calculation
+    float norm_fac;     ///< normalization factor for linearization
+    int   avoid_holes;  ///< hole avoidance flag
+}AacPsyBand;
+
+/**
+ * single/pair channel context for psychoacoustic model
+ */
+typedef struct AacPsyChannel{
+    AacPsyBand band[128];               ///< bands information
+    AacPsyBand prev_band[128];          ///< bands information from the previous frame
+
+    float       win_energy;              ///< sliding average of channel energy
+    float       iir_state[2];            ///< hi-pass IIR filter state
+    uint8_t     next_grouping;           ///< stored grouping scheme for the next frame (in case of 8 short window sequence)
+    enum WindowSequence next_window_seq; ///< window sequence to be used in the next frame
+    /* LAME psy model specific members */
+    float attack_threshold;              ///< attack threshold for this channel
+    float prev_energy_subshort[AAC_NUM_BLOCKS_SHORT * PSY_LAME_NUM_SUBBLOCKS];
+    int   prev_attack;                   ///< attack value for the last short block in the previous sequence
+}AacPsyChannel;
+
+/**
+ * psychoacoustic model frame type-dependent coefficients
+ */
+typedef struct AacPsyCoeffs{
+    float ath;           ///< absolute threshold of hearing per bands
+    float barks;         ///< Bark value for each spectral band in long frame
+    float spread_low[2]; ///< spreading factor for low-to-high threshold spreading in long frame
+    float spread_hi [2]; ///< spreading factor for high-to-low threshold spreading in long frame
+    float min_snr;       ///< minimal SNR
+}AacPsyCoeffs;
+
+/**
+ * 3GPP TS26.403-inspired psychoacoustic model specific data
+ */
+typedef struct AacPsyContext{
+    int chan_bitrate;     ///< bitrate per channel
+    int frame_bits;       ///< average bits per frame
+    int fill_level;       ///< bit reservoir fill level
+    struct {
+        float min;        ///< minimum allowed PE for bit factor calculation
+        float max;        ///< maximum allowed PE for bit factor calculation
+        float previous;   ///< allowed PE of the previous frame
+        float correction; ///< PE correction factor
+    } pe;
+    AacPsyCoeffs psy_coef[2][64];
+    AacPsyChannel *ch;
+    float global_quality; ///< normalized global quality taken from avctx
+}AacPsyContext;
+
+/**
+ * LAME psy model preset struct
+ */
+typedef struct PsyLamePreset {
+    int   quality;  ///< Quality to map the rest of the vaules to.
+     /* This is overloaded to be both kbps per channel in ABR mode, and
+      * requested quality in constant quality mode.
+      */
+    float st_lrm;   ///< short threshold for L, R, and M channels
+} PsyLamePreset;
+
+/**
+ * LAME psy model preset table for ABR
+ */
+static const PsyLamePreset psy_abr_map[] = {
+/* TODO: Tuning. These were taken from LAME. */
+/* kbps/ch st_lrm   */
+    {  8,  6.60},
+    { 16,  6.60},
+    { 24,  6.60},
+    { 32,  6.60},
+    { 40,  6.60},
+    { 48,  6.60},
+    { 56,  6.60},
+    { 64,  6.40},
+    { 80,  6.00},
+    { 96,  5.60},
+    {112,  5.20},
+    {128,  5.20},
+    {160,  5.20}
+};
+
+/**
+* LAME psy model preset table for constant quality
+*/
+static const PsyLamePreset psy_vbr_map[] = {
+/* vbr_q  st_lrm    */
+    { 0,  4.20},
+    { 1,  4.20},
+    { 2,  4.20},
+    { 3,  4.20},
+    { 4,  4.20},
+    { 5,  4.20},
+    { 6,  4.20},
+    { 7,  4.20},
+    { 8,  4.20},
+    { 9,  4.20},
+    {10,  4.20}
+};
+
+/**
+ * LAME psy model FIR coefficient table
+ */
+static const float psy_fir_coeffs[] = {
+    -8.65163e-18 * 2, -0.00851586 * 2, -6.74764e-18 * 2, 0.0209036 * 2,
+    -3.36639e-17 * 2, -0.0438162 * 2,  -1.54175e-17 * 2, 0.0931738 * 2,
+    -5.52212e-17 * 2, -0.313819 * 2
+};
+
+#if ARCH_MIPS
+#   include "mips/aacpsy_mips.h"
+#endif /* ARCH_MIPS */
+
+/**
+ * Calculate the ABR attack threshold from the above LAME psymodel table.
+ */
+static float lame_calc_attack_threshold(int bitrate)
+{
+    /* Assume max bitrate to start with */
+    int lower_range = 12, upper_range = 12;
+    int lower_range_kbps = psy_abr_map[12].quality;
+    int upper_range_kbps = psy_abr_map[12].quality;
+    int i;
+
+    /* Determine which bitrates the value specified falls between.
+     * If the loop ends without breaking our above assumption of 320kbps was correct.
+     */
+    for (i = 1; i < 13; i++) {
+        if (FFMAX(bitrate, psy_abr_map[i].quality) != bitrate) {
+            upper_range = i;
+            upper_range_kbps = psy_abr_map[i    ].quality;
+            lower_range = i - 1;
+            lower_range_kbps = psy_abr_map[i - 1].quality;
+            break; /* Upper range found */
+        }
+    }
+
+    /* Determine which range the value specified is closer to */
+    if ((upper_range_kbps - bitrate) > (bitrate - lower_range_kbps))
+        return psy_abr_map[lower_range].st_lrm;
+    return psy_abr_map[upper_range].st_lrm;
+}
+
+/**
+ * LAME psy model specific initialization
+ */
+static av_cold void lame_window_init(AacPsyContext *ctx, AVCodecContext *avctx)
+{
+    int i, j;
+
+    for (i = 0; i < avctx->channels; i++) {
+        AacPsyChannel *pch = &ctx->ch[i];
+
+        if (avctx->flags & AV_CODEC_FLAG_QSCALE)
+            pch->attack_threshold = psy_vbr_map[avctx->global_quality / FF_QP2LAMBDA].st_lrm;
+        else
+            pch->attack_threshold = lame_calc_attack_threshold(avctx->bit_rate / avctx->channels / 1000);
+
+        for (j = 0; j < AAC_NUM_BLOCKS_SHORT * PSY_LAME_NUM_SUBBLOCKS; j++)
+            pch->prev_energy_subshort[j] = 10.0f;
+    }
+}
+
+/**
+ * Calculate Bark value for given line.
+ */
+static av_cold float calc_bark(float f)
+{
+    return 13.3f * atanf(0.00076f * f) + 3.5f * atanf((f / 7500.0f) * (f / 7500.0f));
+}
+
+#define ATH_ADD 4
+/**
+ * Calculate ATH value for given frequency.
+ * Borrowed from Lame.
+ */
+static av_cold float ath(float f, float add)
+{
+    f /= 1000.0f;
+    return    3.64 * pow(f, -0.8)
+            - 6.8  * exp(-0.6  * (f - 3.4) * (f - 3.4))
+            + 6.0  * exp(-0.15 * (f - 8.7) * (f - 8.7))
+            + (0.6 + 0.04 * add) * 0.001 * f * f * f * f;
+}
+
+static av_cold int psy_3gpp_init(FFPsyContext *ctx) {
+    AacPsyContext *pctx;
+    float bark;
+    int i, j, g, start;
+    float prev, minscale, minath, minsnr, pe_min;
+    int chan_bitrate = ctx->avctx->bit_rate / ((ctx->avctx->flags & AV_CODEC_FLAG_QSCALE) ? 2.0f : ctx->avctx->channels);
+
+    const int bandwidth    = ctx->cutoff ? ctx->cutoff : AAC_CUTOFF(ctx->avctx);
+    const float num_bark   = calc_bark((float)bandwidth);
+
+    ctx->model_priv_data = av_mallocz(sizeof(AacPsyContext));
+    if (!ctx->model_priv_data)
+        return AVERROR(ENOMEM);
+    pctx = ctx->model_priv_data;
+    pctx->global_quality = (ctx->avctx->global_quality ? ctx->avctx->global_quality : 120) * 0.01f;
+
+    if (ctx->avctx->flags & AV_CODEC_FLAG_QSCALE) {
+        /* Use the target average bitrate to compute spread parameters */
+        chan_bitrate = (int)(chan_bitrate / 120.0 * (ctx->avctx->global_quality ? ctx->avctx->global_quality : 120));
+    }
+
+    pctx->chan_bitrate = chan_bitrate;
+    pctx->frame_bits   = FFMIN(2560, chan_bitrate * AAC_BLOCK_SIZE_LONG / ctx->avctx->sample_rate);
+    pctx->pe.min       =  8.0f * AAC_BLOCK_SIZE_LONG * bandwidth / (ctx->avctx->sample_rate * 2.0f);
+    pctx->pe.max       = 12.0f * AAC_BLOCK_SIZE_LONG * bandwidth / (ctx->avctx->sample_rate * 2.0f);
+    ctx->bitres.size   = 6144 - pctx->frame_bits;
+    ctx->bitres.size  -= ctx->bitres.size % 8;
+    pctx->fill_level   = ctx->bitres.size;
+    minath = ath(3410 - 0.733 * ATH_ADD, ATH_ADD);
+    for (j = 0; j < 2; j++) {
+        AacPsyCoeffs *coeffs = pctx->psy_coef[j];
+        const uint8_t *band_sizes = ctx->bands[j];
+        float line_to_frequency = ctx->avctx->sample_rate / (j ? 256.f : 2048.0f);
+        float avg_chan_bits = chan_bitrate * (j ? 128.0f : 1024.0f) / ctx->avctx->sample_rate;
+        /* reference encoder uses 2.4% here instead of 60% like the spec says */
+        float bark_pe = 0.024f * PSY_3GPP_BITS_TO_PE(avg_chan_bits) / num_bark;
+        float en_spread_low = j ? PSY_3GPP_EN_SPREAD_LOW_S : PSY_3GPP_EN_SPREAD_LOW_L;
+        /* High energy spreading for long blocks <= 22kbps/channel and short blocks are the same. */
+        float en_spread_hi  = (j || (chan_bitrate <= 22.0f)) ? PSY_3GPP_EN_SPREAD_HI_S : PSY_3GPP_EN_SPREAD_HI_L1;
+
+        i = 0;
+        prev = 0.0;
+        for (g = 0; g < ctx->num_bands[j]; g++) {
+            i += band_sizes[g];
+            bark = calc_bark((i-1) * line_to_frequency);
+            coeffs[g].barks = (bark + prev) / 2.0;
+            prev = bark;
+        }
+        for (g = 0; g < ctx->num_bands[j] - 1; g++) {
+            AacPsyCoeffs *coeff = &coeffs[g];
+            float bark_width = coeffs[g+1].barks - coeffs->barks;
+            coeff->spread_low[0] = ff_exp10(-bark_width * PSY_3GPP_THR_SPREAD_LOW);
+            coeff->spread_hi [0] = ff_exp10(-bark_width * PSY_3GPP_THR_SPREAD_HI);
+            coeff->spread_low[1] = ff_exp10(-bark_width * en_spread_low);
+            coeff->spread_hi [1] = ff_exp10(-bark_width * en_spread_hi);
+            pe_min = bark_pe * bark_width;
+            minsnr = exp2(pe_min / band_sizes[g]) - 1.5f;
+            coeff->min_snr = av_clipf(1.0f / minsnr, PSY_SNR_25DB, PSY_SNR_1DB);
+        }
+        start = 0;
+        for (g = 0; g < ctx->num_bands[j]; g++) {
+            minscale = ath(start * line_to_frequency, ATH_ADD);
+            for (i = 1; i < band_sizes[g]; i++)
+                minscale = FFMIN(minscale, ath((start + i) * line_to_frequency, ATH_ADD));
+            coeffs[g].ath = minscale - minath;
+            start += band_sizes[g];
+        }
+    }
+
+    pctx->ch = av_mallocz_array(ctx->avctx->channels, sizeof(AacPsyChannel));
+    if (!pctx->ch) {
+        av_freep(&ctx->model_priv_data);
+        return AVERROR(ENOMEM);
+    }
+
+    lame_window_init(pctx, ctx->avctx);
+
+    return 0;
+}
+
+/**
+ * IIR filter used in block switching decision
+ */
+static float iir_filter(int in, float state[2])
+{
+    float ret;
+
+    ret = 0.7548f * (in - state[0]) + 0.5095f * state[1];
+    state[0] = in;
+    state[1] = ret;
+    return ret;
+}
+
+/**
+ * window grouping information stored as bits (0 - new group, 1 - group continues)
+ */
+static const uint8_t window_grouping[9] = {
+    0xB6, 0x6C, 0xD8, 0xB2, 0x66, 0xC6, 0x96, 0x36, 0x36
+};
+
+/**
+ * Tell encoder which window types to use.
+ * @see 3GPP TS26.403 5.4.1 "Blockswitching"
+ */
+static av_unused FFPsyWindowInfo psy_3gpp_window(FFPsyContext *ctx,
+                                                 const int16_t *audio,
+                                                 const int16_t *la,
+                                                 int channel, int prev_type)
+{
+    int i, j;
+    int br               = ((AacPsyContext*)ctx->model_priv_data)->chan_bitrate;
+    int attack_ratio     = br <= 16000 ? 18 : 10;
+    AacPsyContext *pctx = (AacPsyContext*) ctx->model_priv_data;
+    AacPsyChannel *pch  = &pctx->ch[channel];
+    uint8_t grouping     = 0;
+    int next_type        = pch->next_window_seq;
+    FFPsyWindowInfo wi  = { { 0 } };
+
+    if (la) {
+        float s[8], v;
+        int switch_to_eight = 0;
+        float sum = 0.0, sum2 = 0.0;
+        int attack_n = 0;
+        int stay_short = 0;
+        for (i = 0; i < 8; i++) {
+            for (j = 0; j < 128; j++) {
+                v = iir_filter(la[i*128+j], pch->iir_state);
+                sum += v*v;
+            }
+            s[i]  = sum;
+            sum2 += sum;
+        }
+        for (i = 0; i < 8; i++) {
+            if (s[i] > pch->win_energy * attack_ratio) {
+                attack_n        = i + 1;
+                switch_to_eight = 1;
+                break;
+            }
+        }
+        pch->win_energy = pch->win_energy*7/8 + sum2/64;
+
+        wi.window_type[1] = prev_type;
+        switch (prev_type) {
+        case ONLY_LONG_SEQUENCE:
+            wi.window_type[0] = switch_to_eight ? LONG_START_SEQUENCE : ONLY_LONG_SEQUENCE;
+            next_type = switch_to_eight ? EIGHT_SHORT_SEQUENCE : ONLY_LONG_SEQUENCE;
+            break;
+        case LONG_START_SEQUENCE:
+            wi.window_type[0] = EIGHT_SHORT_SEQUENCE;
+            grouping = pch->next_grouping;
+            next_type = switch_to_eight ? EIGHT_SHORT_SEQUENCE : LONG_STOP_SEQUENCE;
+            break;
+        case LONG_STOP_SEQUENCE:
+            wi.window_type[0] = switch_to_eight ? LONG_START_SEQUENCE : ONLY_LONG_SEQUENCE;
+            next_type = switch_to_eight ? EIGHT_SHORT_SEQUENCE : ONLY_LONG_SEQUENCE;
+            break;
+        case EIGHT_SHORT_SEQUENCE:
+            stay_short = next_type == EIGHT_SHORT_SEQUENCE || switch_to_eight;
+            wi.window_type[0] = stay_short ? EIGHT_SHORT_SEQUENCE : LONG_STOP_SEQUENCE;
+            grouping = next_type == EIGHT_SHORT_SEQUENCE ? pch->next_grouping : 0;
+            next_type = switch_to_eight ? EIGHT_SHORT_SEQUENCE : LONG_STOP_SEQUENCE;
+            break;
+        }
+
+        pch->next_grouping = window_grouping[attack_n];
+        pch->next_window_seq = next_type;
+    } else {
+        for (i = 0; i < 3; i++)
+            wi.window_type[i] = prev_type;
+        grouping = (prev_type == EIGHT_SHORT_SEQUENCE) ? window_grouping[0] : 0;
+    }
+
+    wi.window_shape   = 1;
+    if (wi.window_type[0] != EIGHT_SHORT_SEQUENCE) {
+        wi.num_windows = 1;
+        wi.grouping[0] = 1;
+    } else {
+        int lastgrp = 0;
+        wi.num_windows = 8;
+        for (i = 0; i < 8; i++) {
+            if (!((grouping >> i) & 1))
+                lastgrp = i;
+            wi.grouping[lastgrp]++;
+        }
+    }
+
+    return wi;
+}
+
+/* 5.6.1.2 "Calculation of Bit Demand" */
+static int calc_bit_demand(AacPsyContext *ctx, float pe, int bits, int size,
+                           int short_window)
+{
+    const float bitsave_slope  = short_window ? PSY_3GPP_SAVE_SLOPE_S  : PSY_3GPP_SAVE_SLOPE_L;
+    const float bitsave_add    = short_window ? PSY_3GPP_SAVE_ADD_S    : PSY_3GPP_SAVE_ADD_L;
+    const float bitspend_slope = short_window ? PSY_3GPP_SPEND_SLOPE_S : PSY_3GPP_SPEND_SLOPE_L;
+    const float bitspend_add   = short_window ? PSY_3GPP_SPEND_ADD_S   : PSY_3GPP_SPEND_ADD_L;
+    const float clip_low       = short_window ? PSY_3GPP_CLIP_LO_S     : PSY_3GPP_CLIP_LO_L;
+    const float clip_high      = short_window ? PSY_3GPP_CLIP_HI_S     : PSY_3GPP_CLIP_HI_L;
+    float clipped_pe, bit_save, bit_spend, bit_factor, fill_level, forgetful_min_pe;
+
+    ctx->fill_level += ctx->frame_bits - bits;
+    ctx->fill_level  = av_clip(ctx->fill_level, 0, size);
+    fill_level = av_clipf((float)ctx->fill_level / size, clip_low, clip_high);
+    clipped_pe = av_clipf(pe, ctx->pe.min, ctx->pe.max);
+    bit_save   = (fill_level + bitsave_add) * bitsave_slope;
+    assert(bit_save <= 0.3f && bit_save >= -0.05000001f);
+    bit_spend  = (fill_level + bitspend_add) * bitspend_slope;
+    assert(bit_spend <= 0.5f && bit_spend >= -0.1f);
+    /* The bit factor graph in the spec is obviously incorrect.
+     *      bit_spend + ((bit_spend - bit_spend))...
+     * The reference encoder subtracts everything from 1, but also seems incorrect.
+     *      1 - bit_save + ((bit_spend + bit_save))...
+     * Hopefully below is correct.
+     */
+    bit_factor = 1.0f - bit_save + ((bit_spend - bit_save) / (ctx->pe.max - ctx->pe.min)) * (clipped_pe - ctx->pe.min);
+    /* NOTE: The reference encoder attempts to center pe max/min around the current pe.
+     * Here we do that by slowly forgetting pe.min when pe stays in a range that makes
+     * it unlikely (ie: above the mean)
+     */
+    ctx->pe.max = FFMAX(pe, ctx->pe.max);
+    forgetful_min_pe = ((ctx->pe.min * PSY_PE_FORGET_SLOPE)
+        + FFMAX(ctx->pe.min, pe * (pe / ctx->pe.max))) / (PSY_PE_FORGET_SLOPE + 1);
+    ctx->pe.min = FFMIN(pe, forgetful_min_pe);
+
+    /* NOTE: allocate a minimum of 1/8th average frame bits, to avoid
+     *   reservoir starvation from producing zero-bit frames
+     */
+    return FFMIN(
+        ctx->frame_bits * bit_factor,
+        FFMAX(ctx->frame_bits + size - bits, ctx->frame_bits / 8));
+}
+
+static float calc_pe_3gpp(AacPsyBand *band)
+{
+    float pe, a;
+
+    band->pe           = 0.0f;
+    band->pe_const     = 0.0f;
+    band->active_lines = 0.0f;
+    if (band->energy > band->thr) {
+        a  = log2f(band->energy);
+        pe = a - log2f(band->thr);
+        band->active_lines = band->nz_lines;
+        if (pe < PSY_3GPP_C1) {
+            pe = pe * PSY_3GPP_C3 + PSY_3GPP_C2;
+            a  = a  * PSY_3GPP_C3 + PSY_3GPP_C2;
+            band->active_lines *= PSY_3GPP_C3;
+        }
+        band->pe       = pe * band->nz_lines;
+        band->pe_const = a  * band->nz_lines;
+    }
+
+    return band->pe;
+}
+
+static float calc_reduction_3gpp(float a, float desired_pe, float pe,
+                                 float active_lines)
+{
+    float thr_avg, reduction;
+
+    if(active_lines == 0.0)
+        return 0;
+
+    thr_avg   = exp2f((a - pe) / (4.0f * active_lines));
+    reduction = exp2f((a - desired_pe) / (4.0f * active_lines)) - thr_avg;
+
+    return FFMAX(reduction, 0.0f);
+}
+
+static float calc_reduced_thr_3gpp(AacPsyBand *band, float min_snr,
+                                   float reduction)
+{
+    float thr = band->thr;
+
+    if (band->energy > thr) {
+        thr = sqrtf(thr);
+        thr = sqrtf(thr) + reduction;
+        thr *= thr;
+        thr *= thr;
+
+        /* This deviates from the 3GPP spec to match the reference encoder.
+         * It performs min(thr_reduced, max(thr, energy/min_snr)) only for bands
+         * that have hole avoidance on (active or inactive). It always reduces the
+         * threshold of bands with hole avoidance off.
+         */
+        if (thr > band->energy * min_snr && band->avoid_holes != PSY_3GPP_AH_NONE) {
+            thr = FFMAX(band->thr, band->energy * min_snr);
+            band->avoid_holes = PSY_3GPP_AH_ACTIVE;
+        }
+    }
+
+    return thr;
+}
+
+#ifndef calc_thr_3gpp
+static void calc_thr_3gpp(const FFPsyWindowInfo *wi, const int num_bands, AacPsyChannel *pch,
+                          const uint8_t *band_sizes, const float *coefs, const int cutoff)
+{
+    int i, w, g;
+    int start = 0, wstart = 0;
+    for (w = 0; w < wi->num_windows*16; w += 16) {
+        wstart = 0;
+        for (g = 0; g < num_bands; g++) {
+            AacPsyBand *band = &pch->band[w+g];
+
+            float form_factor = 0.0f;
+            float Temp;
+            band->energy = 0.0f;
+            if (wstart < cutoff) {
+                for (i = 0; i < band_sizes[g]; i++) {
+                    band->energy += coefs[start+i] * coefs[start+i];
+                    form_factor  += sqrtf(fabs(coefs[start+i]));
+                }
+            }
+            Temp = band->energy > 0 ? sqrtf((float)band_sizes[g] / band->energy) : 0;
+            band->thr      = band->energy * 0.001258925f;
+            band->nz_lines = form_factor * sqrtf(Temp);
+
+            start += band_sizes[g];
+            wstart += band_sizes[g];
+        }
+    }
+}
+#endif /* calc_thr_3gpp */
+
+#ifndef psy_hp_filter
+static void psy_hp_filter(const float *firbuf, float *hpfsmpl, const float *psy_fir_coeffs)
+{
+    int i, j;
+    for (i = 0; i < AAC_BLOCK_SIZE_LONG; i++) {
+        float sum1, sum2;
+        sum1 = firbuf[i + (PSY_LAME_FIR_LEN - 1) / 2];
+        sum2 = 0.0;
+        for (j = 0; j < ((PSY_LAME_FIR_LEN - 1) / 2) - 1; j += 2) {
+            sum1 += psy_fir_coeffs[j] * (firbuf[i + j] + firbuf[i + PSY_LAME_FIR_LEN - j]);
+            sum2 += psy_fir_coeffs[j + 1] * (firbuf[i + j + 1] + firbuf[i + PSY_LAME_FIR_LEN - j - 1]);
+        }
+        /* NOTE: The LAME psymodel expects it's input in the range -32768 to 32768.
+         *       Tuning this for normalized floats would be difficult. */
+        hpfsmpl[i] = (sum1 + sum2) * 32768.0f;
+    }
+}
+#endif /* psy_hp_filter */
+
+/**
+ * Calculate band thresholds as suggested in 3GPP TS26.403
+ */
+static void psy_3gpp_analyze_channel(FFPsyContext *ctx, int channel,
+                                     const float *coefs, const FFPsyWindowInfo *wi)
+{
+    AacPsyContext *pctx = (AacPsyContext*) ctx->model_priv_data;
+    AacPsyChannel *pch  = &pctx->ch[channel];
+    int i, w, g;
+    float desired_bits, desired_pe, delta_pe, reduction= NAN, spread_en[128] = {0};
+    float a = 0.0f, active_lines = 0.0f, norm_fac = 0.0f;
+    float pe = pctx->chan_bitrate > 32000 ? 0.0f : FFMAX(50.0f, 100.0f - pctx->chan_bitrate * 100.0f / 32000.0f);
+    const int      num_bands   = ctx->num_bands[wi->num_windows == 8];
+    const uint8_t *band_sizes  = ctx->bands[wi->num_windows == 8];
+    AacPsyCoeffs  *coeffs      = pctx->psy_coef[wi->num_windows == 8];
+    const float avoid_hole_thr = wi->num_windows == 8 ? PSY_3GPP_AH_THR_SHORT : PSY_3GPP_AH_THR_LONG;
+    const int bandwidth        = ctx->cutoff ? ctx->cutoff : AAC_CUTOFF(ctx->avctx);
+    const int cutoff           = bandwidth * 2048 / wi->num_windows / ctx->avctx->sample_rate;
+
+    //calculate energies, initial thresholds and related values - 5.4.2 "Threshold Calculation"
+    calc_thr_3gpp(wi, num_bands, pch, band_sizes, coefs, cutoff);
+
+    //modify thresholds and energies - spread, threshold in quiet, pre-echo control
+    for (w = 0; w < wi->num_windows*16; w += 16) {
+        AacPsyBand *bands = &pch->band[w];
+
+        /* 5.4.2.3 "Spreading" & 5.4.3 "Spread Energy Calculation" */
+        spread_en[0] = bands[0].energy;
+        for (g = 1; g < num_bands; g++) {
+            bands[g].thr   = FFMAX(bands[g].thr,    bands[g-1].thr * coeffs[g].spread_hi[0]);
+            spread_en[w+g] = FFMAX(bands[g].energy, spread_en[w+g-1] * coeffs[g].spread_hi[1]);
+        }
+        for (g = num_bands - 2; g >= 0; g--) {
+            bands[g].thr   = FFMAX(bands[g].thr,   bands[g+1].thr * coeffs[g].spread_low[0]);
+            spread_en[w+g] = FFMAX(spread_en[w+g], spread_en[w+g+1] * coeffs[g].spread_low[1]);
+        }
+        //5.4.2.4 "Threshold in quiet"
+        for (g = 0; g < num_bands; g++) {
+            AacPsyBand *band = &bands[g];
+
+            band->thr_quiet = band->thr = FFMAX(band->thr, coeffs[g].ath);
+            //5.4.2.5 "Pre-echo control"
+            if (!(wi->window_type[0] == LONG_STOP_SEQUENCE || (!w && wi->window_type[1] == LONG_START_SEQUENCE)))
+                band->thr = FFMAX(PSY_3GPP_RPEMIN*band->thr, FFMIN(band->thr,
+                                  PSY_3GPP_RPELEV*pch->prev_band[w+g].thr_quiet));
+
+            /* 5.6.1.3.1 "Preparatory steps of the perceptual entropy calculation" */
+            pe += calc_pe_3gpp(band);
+            a  += band->pe_const;
+            active_lines += band->active_lines;
+
+            /* 5.6.1.3.3 "Selection of the bands for avoidance of holes" */
+            if (spread_en[w+g] * avoid_hole_thr > band->energy || coeffs[g].min_snr > 1.0f)
+                band->avoid_holes = PSY_3GPP_AH_NONE;
+            else
+                band->avoid_holes = PSY_3GPP_AH_INACTIVE;
+        }
+    }
+
+    /* 5.6.1.3.2 "Calculation of the desired perceptual entropy" */
+    ctx->ch[channel].entropy = pe;
+    if (ctx->avctx->flags & AV_CODEC_FLAG_QSCALE) {
+        /* (2.5 * 120) achieves almost transparent rate, and we want to give
+         * ample room downwards, so we make that equivalent to QSCALE=2.4
+         */
+        desired_pe = pe * (ctx->avctx->global_quality ? ctx->avctx->global_quality : 120) / (2 * 2.5f * 120.0f);
+        desired_bits = FFMIN(2560, PSY_3GPP_PE_TO_BITS(desired_pe));
+        desired_pe = PSY_3GPP_BITS_TO_PE(desired_bits); // reflect clipping
+
+        /* PE slope smoothing */
+        if (ctx->bitres.bits > 0) {
+            desired_bits = FFMIN(2560, PSY_3GPP_PE_TO_BITS(desired_pe));
+            desired_pe = PSY_3GPP_BITS_TO_PE(desired_bits); // reflect clipping
+        }
+
+        pctx->pe.max = FFMAX(pe, pctx->pe.max);
+        pctx->pe.min = FFMIN(pe, pctx->pe.min);
+    } else {
+        desired_bits = calc_bit_demand(pctx, pe, ctx->bitres.bits, ctx->bitres.size, wi->num_windows == 8);
+        desired_pe = PSY_3GPP_BITS_TO_PE(desired_bits);
+
+        /* NOTE: PE correction is kept simple. During initial testing it had very
+         *       little effect on the final bitrate. Probably a good idea to come
+         *       back and do more testing later.
+         */
+        if (ctx->bitres.bits > 0)
+            desired_pe *= av_clipf(pctx->pe.previous / PSY_3GPP_BITS_TO_PE(ctx->bitres.bits),
+                                   0.85f, 1.15f);
+    }
+    pctx->pe.previous = PSY_3GPP_BITS_TO_PE(desired_bits);
+    ctx->bitres.alloc = desired_bits;
+
+    if (desired_pe < pe) {
+        /* 5.6.1.3.4 "First Estimation of the reduction value" */
+        for (w = 0; w < wi->num_windows*16; w += 16) {
+            reduction = calc_reduction_3gpp(a, desired_pe, pe, active_lines);
+            pe = 0.0f;
+            a  = 0.0f;
+            active_lines = 0.0f;
+            for (g = 0; g < num_bands; g++) {
+                AacPsyBand *band = &pch->band[w+g];
+
+                band->thr = calc_reduced_thr_3gpp(band, coeffs[g].min_snr, reduction);
+                /* recalculate PE */
+                pe += calc_pe_3gpp(band);
+                a  += band->pe_const;
+                active_lines += band->active_lines;
+            }
+        }
+
+        /* 5.6.1.3.5 "Second Estimation of the reduction value" */
+        for (i = 0; i < 2; i++) {
+            float pe_no_ah = 0.0f, desired_pe_no_ah;
+            active_lines = a = 0.0f;
+            for (w = 0; w < wi->num_windows*16; w += 16) {
+                for (g = 0; g < num_bands; g++) {
+                    AacPsyBand *band = &pch->band[w+g];
+
+                    if (band->avoid_holes != PSY_3GPP_AH_ACTIVE) {
+                        pe_no_ah += band->pe;
+                        a        += band->pe_const;
+                        active_lines += band->active_lines;
+                    }
+                }
+            }
+            desired_pe_no_ah = FFMAX(desired_pe - (pe - pe_no_ah), 0.0f);
+            if (active_lines > 0.0f)
+                reduction = calc_reduction_3gpp(a, desired_pe_no_ah, pe_no_ah, active_lines);
+
+            pe = 0.0f;
+            for (w = 0; w < wi->num_windows*16; w += 16) {
+                for (g = 0; g < num_bands; g++) {
+                    AacPsyBand *band = &pch->band[w+g];
+
+                    if (active_lines > 0.0f)
+                        band->thr = calc_reduced_thr_3gpp(band, coeffs[g].min_snr, reduction);
+                    pe += calc_pe_3gpp(band);
+                    if (band->thr > 0.0f)
+                        band->norm_fac = band->active_lines / band->thr;
+                    else
+                        band->norm_fac = 0.0f;
+                    norm_fac += band->norm_fac;
+                }
+            }
+            delta_pe = desired_pe - pe;
+            if (fabs(delta_pe) > 0.05f * desired_pe)
+                break;
+        }
+
+        if (pe < 1.15f * desired_pe) {
+            /* 6.6.1.3.6 "Final threshold modification by linearization" */
+            norm_fac = 1.0f / norm_fac;
+            for (w = 0; w < wi->num_windows*16; w += 16) {
+                for (g = 0; g < num_bands; g++) {
+                    AacPsyBand *band = &pch->band[w+g];
+
+                    if (band->active_lines > 0.5f) {
+                        float delta_sfb_pe = band->norm_fac * norm_fac * delta_pe;
+                        float thr = band->thr;
+
+                        thr *= exp2f(delta_sfb_pe / band->active_lines);
+                        if (thr > coeffs[g].min_snr * band->energy && band->avoid_holes == PSY_3GPP_AH_INACTIVE)
+                            thr = FFMAX(band->thr, coeffs[g].min_snr * band->energy);
+                        band->thr = thr;
+                    }
+                }
+            }
+        } else {
+            /* 5.6.1.3.7 "Further perceptual entropy reduction" */
+            g = num_bands;
+            while (pe > desired_pe && g--) {
+                for (w = 0; w < wi->num_windows*16; w+= 16) {
+                    AacPsyBand *band = &pch->band[w+g];
+                    if (band->avoid_holes != PSY_3GPP_AH_NONE && coeffs[g].min_snr < PSY_SNR_1DB) {
+                        coeffs[g].min_snr = PSY_SNR_1DB;
+                        band->thr = band->energy * PSY_SNR_1DB;
+                        pe += band->active_lines * 1.5f - band->pe;
+                    }
+                }
+            }
+            /* TODO: allow more holes (unused without mid/side) */
+        }
+    }
+
+    for (w = 0; w < wi->num_windows*16; w += 16) {
+        for (g = 0; g < num_bands; g++) {
+            AacPsyBand *band     = &pch->band[w+g];
+            FFPsyBand  *psy_band = &ctx->ch[channel].psy_bands[w+g];
+
+            psy_band->threshold = band->thr;
+            psy_band->energy    = band->energy;
+            psy_band->spread    = band->active_lines * 2.0f / band_sizes[g];
+            psy_band->bits      = PSY_3GPP_PE_TO_BITS(band->pe);
+        }
+    }
+
+    memcpy(pch->prev_band, pch->band, sizeof(pch->band));
+}
+
+static void psy_3gpp_analyze(FFPsyContext *ctx, int channel,
+                                   const float **coeffs, const FFPsyWindowInfo *wi)
+{
+    int ch;
+    FFPsyChannelGroup *group = ff_psy_find_group(ctx, channel);
+
+    for (ch = 0; ch < group->num_ch; ch++)
+        psy_3gpp_analyze_channel(ctx, channel + ch, coeffs[ch], &wi[ch]);
+}
+
+static av_cold void psy_3gpp_end(FFPsyContext *apc)
+{
+    AacPsyContext *pctx = (AacPsyContext*) apc->model_priv_data;
+    av_freep(&pctx->ch);
+    av_freep(&apc->model_priv_data);
+}
+
+static void lame_apply_block_type(AacPsyChannel *ctx, FFPsyWindowInfo *wi, int uselongblock)
+{
+    int blocktype = ONLY_LONG_SEQUENCE;
+    if (uselongblock) {
+        if (ctx->next_window_seq == EIGHT_SHORT_SEQUENCE)
+            blocktype = LONG_STOP_SEQUENCE;
+    } else {
+        blocktype = EIGHT_SHORT_SEQUENCE;
+        if (ctx->next_window_seq == ONLY_LONG_SEQUENCE)
+            ctx->next_window_seq = LONG_START_SEQUENCE;
+        if (ctx->next_window_seq == LONG_STOP_SEQUENCE)
+            ctx->next_window_seq = EIGHT_SHORT_SEQUENCE;
+    }
+
+    wi->window_type[0] = ctx->next_window_seq;
+    ctx->next_window_seq = blocktype;
+}
+
+static FFPsyWindowInfo psy_lame_window(FFPsyContext *ctx, const float *audio,
+                                       const float *la, int channel, int prev_type)
+{
+    AacPsyContext *pctx = (AacPsyContext*) ctx->model_priv_data;
+    AacPsyChannel *pch  = &pctx->ch[channel];
+    int grouping     = 0;
+    int uselongblock = 1;
+    int attacks[AAC_NUM_BLOCKS_SHORT + 1] = { 0 };
+    int i;
+    FFPsyWindowInfo wi = { { 0 } };
+
+    if (la) {
+        float hpfsmpl[AAC_BLOCK_SIZE_LONG];
+        const float *pf = hpfsmpl;
+        float attack_intensity[(AAC_NUM_BLOCKS_SHORT + 1) * PSY_LAME_NUM_SUBBLOCKS];
+        float energy_subshort[(AAC_NUM_BLOCKS_SHORT + 1) * PSY_LAME_NUM_SUBBLOCKS];
+        float energy_short[AAC_NUM_BLOCKS_SHORT + 1] = { 0 };
+        const float *firbuf = la + (AAC_BLOCK_SIZE_SHORT/4 - PSY_LAME_FIR_LEN);
+        int att_sum = 0;
+
+        /* LAME comment: apply high pass filter of fs/4 */
+        psy_hp_filter(firbuf, hpfsmpl, psy_fir_coeffs);
+
+        /* Calculate the energies of each sub-shortblock */
+        for (i = 0; i < PSY_LAME_NUM_SUBBLOCKS; i++) {
+            energy_subshort[i] = pch->prev_energy_subshort[i + ((AAC_NUM_BLOCKS_SHORT - 1) * PSY_LAME_NUM_SUBBLOCKS)];
+            assert(pch->prev_energy_subshort[i + ((AAC_NUM_BLOCKS_SHORT - 2) * PSY_LAME_NUM_SUBBLOCKS + 1)] > 0);
+            attack_intensity[i] = energy_subshort[i] / pch->prev_energy_subshort[i + ((AAC_NUM_BLOCKS_SHORT - 2) * PSY_LAME_NUM_SUBBLOCKS + 1)];
+            energy_short[0] += energy_subshort[i];
+        }
+
+        for (i = 0; i < AAC_NUM_BLOCKS_SHORT * PSY_LAME_NUM_SUBBLOCKS; i++) {
+            const float *const pfe = pf + AAC_BLOCK_SIZE_LONG / (AAC_NUM_BLOCKS_SHORT * PSY_LAME_NUM_SUBBLOCKS);
+            float p = 1.0f;
+            for (; pf < pfe; pf++)
+                p = FFMAX(p, fabsf(*pf));
+            pch->prev_energy_subshort[i] = energy_subshort[i + PSY_LAME_NUM_SUBBLOCKS] = p;
+            energy_short[1 + i / PSY_LAME_NUM_SUBBLOCKS] += p;
+            /* NOTE: The indexes below are [i + 3 - 2] in the LAME source.
+             *       Obviously the 3 and 2 have some significance, or this would be just [i + 1]
+             *       (which is what we use here). What the 3 stands for is ambiguous, as it is both
+             *       number of short blocks, and the number of sub-short blocks.
+             *       It seems that LAME is comparing each sub-block to sub-block + 1 in the
+             *       previous block.
+             */
+            if (p > energy_subshort[i + 1])
+                p = p / energy_subshort[i + 1];
+            else if (energy_subshort[i + 1] > p * 10.0f)
+                p = energy_subshort[i + 1] / (p * 10.0f);
+            else
+                p = 0.0;
+            attack_intensity[i + PSY_LAME_NUM_SUBBLOCKS] = p;
+        }
+
+        /* compare energy between sub-short blocks */
+        for (i = 0; i < (AAC_NUM_BLOCKS_SHORT + 1) * PSY_LAME_NUM_SUBBLOCKS; i++)
+            if (!attacks[i / PSY_LAME_NUM_SUBBLOCKS])
+                if (attack_intensity[i] > pch->attack_threshold)
+                    attacks[i / PSY_LAME_NUM_SUBBLOCKS] = (i % PSY_LAME_NUM_SUBBLOCKS) + 1;
+
+        /* should have energy change between short blocks, in order to avoid periodic signals */
+        /* Good samples to show the effect are Trumpet test songs */
+        /* GB: tuned (1) to avoid too many short blocks for test sample TRUMPET */
+        /* RH: tuned (2) to let enough short blocks through for test sample FSOL and SNAPS */
+        for (i = 1; i < AAC_NUM_BLOCKS_SHORT + 1; i++) {
+            const float u = energy_short[i - 1];
+            const float v = energy_short[i];
+            const float m = FFMAX(u, v);
+            if (m < 40000) {                          /* (2) */
+                if (u < 1.7f * v && v < 1.7f * u) {   /* (1) */
+                    if (i == 1 && attacks[0] < attacks[i])
+                        attacks[0] = 0;
+                    attacks[i] = 0;
+                }
+            }
+            att_sum += attacks[i];
+        }
+
+        if (attacks[0] <= pch->prev_attack)
+            attacks[0] = 0;
+
+        att_sum += attacks[0];
+        /* 3 below indicates the previous attack happened in the last sub-block of the previous sequence */
+        if (pch->prev_attack == 3 || att_sum) {
+            uselongblock = 0;
+
+            for (i = 1; i < AAC_NUM_BLOCKS_SHORT + 1; i++)
+                if (attacks[i] && attacks[i-1])
+                    attacks[i] = 0;
+        }
+    } else {
+        /* We have no lookahead info, so just use same type as the previous sequence. */
+        uselongblock = !(prev_type == EIGHT_SHORT_SEQUENCE);
+    }
+
+    lame_apply_block_type(pch, &wi, uselongblock);
+
+    wi.window_type[1] = prev_type;
+    if (wi.window_type[0] != EIGHT_SHORT_SEQUENCE) {
+
+        wi.num_windows  = 1;
+        wi.grouping[0]  = 1;
+        if (wi.window_type[0] == LONG_START_SEQUENCE)
+            wi.window_shape = 0;
+        else
+            wi.window_shape = 1;
+
+    } else {
+        int lastgrp = 0;
+
+        wi.num_windows = 8;
+        wi.window_shape = 0;
+        for (i = 0; i < 8; i++) {
+            if (!((pch->next_grouping >> i) & 1))
+                lastgrp = i;
+            wi.grouping[lastgrp]++;
+        }
+    }
+
+    /* Determine grouping, based on the location of the first attack, and save for
+     * the next frame.
+     * FIXME: Move this to analysis.
+     * TODO: Tune groupings depending on attack location
+     * TODO: Handle more than one attack in a group
+     */
+    for (i = 0; i < 9; i++) {
+        if (attacks[i]) {
+            grouping = i;
+            break;
+        }
+    }
+    pch->next_grouping = window_grouping[grouping];
+
+    pch->prev_attack = attacks[8];
+
+    return wi;
+}
+
+const FFPsyModel ff_aac_psy_model =
+{
+    .name    = "3GPP TS 26.403-inspired model",
+    .init    = psy_3gpp_init,
+    .window  = psy_lame_window,
+    .analyze = psy_3gpp_analyze,
+    .end     = psy_3gpp_end,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr.c
new file mode 100644
index 000000000..1d2a8d472
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr.c
@@ -0,0 +1,370 @@
+/*
+ * AAC Spectral Band Replication decoding functions
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ * Copyright (c) 2009-2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC Spectral Band Replication decoding functions
+ * @author Robert Swain ( rob opendot cl )
+ */
+#define USE_FIXED 0
+
+#include "aac.h"
+#include "sbr.h"
+#include "aacsbr.h"
+#include "aacsbrdata.h"
+#include "aacsbr_tablegen.h"
+#include "fft.h"
+#include "internal.h"
+#include "aacps.h"
+#include "sbrdsp.h"
+#include "libavutil/internal.h"
+#include "libavutil/libm.h"
+#include "libavutil/avassert.h"
+
+#include <stdint.h>
+#include <float.h>
+#include <math.h>
+
+#if ARCH_MIPS
+#include "mips/aacsbr_mips.h"
+#endif /* ARCH_MIPS */
+
+static VLC vlc_sbr[10];
+static void aacsbr_func_ptr_init(AACSBRContext *c);
+
+static void make_bands(int16_t* bands, int start, int stop, int num_bands)
+{
+    int k, previous, present;
+    float base, prod;
+
+    base = powf((float)stop / start, 1.0f / num_bands);
+    prod = start;
+    previous = start;
+
+    for (k = 0; k < num_bands-1; k++) {
+        prod *= base;
+        present  = lrintf(prod);
+        bands[k] = present - previous;
+        previous = present;
+    }
+    bands[num_bands-1] = stop - previous;
+}
+
+/// Dequantization and stereo decoding (14496-3 sp04 p203)
+static void sbr_dequant(SpectralBandReplication *sbr, int id_aac)
+{
+    int k, e;
+    int ch;
+    static const double exp2_tab[2] = {1, M_SQRT2};
+    if (id_aac == TYPE_CPE && sbr->bs_coupling) {
+        int pan_offset = sbr->data[0].bs_amp_res ? 12 : 24;
+        for (e = 1; e <= sbr->data[0].bs_num_env; e++) {
+            for (k = 0; k < sbr->n[sbr->data[0].bs_freq_res[e]]; k++) {
+                float temp1, temp2, fac;
+                if (sbr->data[0].bs_amp_res) {
+                    temp1 = ff_exp2fi(sbr->data[0].env_facs_q[e][k] + 7);
+                    temp2 = ff_exp2fi(pan_offset - sbr->data[1].env_facs_q[e][k]);
+                }
+                else {
+                    temp1 = ff_exp2fi((sbr->data[0].env_facs_q[e][k]>>1) + 7) *
+                            exp2_tab[sbr->data[0].env_facs_q[e][k] & 1];
+                    temp2 = ff_exp2fi((pan_offset - sbr->data[1].env_facs_q[e][k])>>1) *
+                            exp2_tab[(pan_offset - sbr->data[1].env_facs_q[e][k]) & 1];
+                }
+                if (temp1 > 1E20) {
+                    av_log(NULL, AV_LOG_ERROR, "envelope scalefactor overflow in dequant\n");
+                    temp1 = 1;
+                }
+                fac   = temp1 / (1.0f + temp2);
+                sbr->data[0].env_facs[e][k] = fac;
+                sbr->data[1].env_facs[e][k] = fac * temp2;
+            }
+        }
+        for (e = 1; e <= sbr->data[0].bs_num_noise; e++) {
+            for (k = 0; k < sbr->n_q; k++) {
+                float temp1 = ff_exp2fi(NOISE_FLOOR_OFFSET - sbr->data[0].noise_facs_q[e][k] + 1);
+                float temp2 = ff_exp2fi(12 - sbr->data[1].noise_facs_q[e][k]);
+                float fac;
+                av_assert0(temp1 <= 1E20);
+                fac = temp1 / (1.0f + temp2);
+                sbr->data[0].noise_facs[e][k] = fac;
+                sbr->data[1].noise_facs[e][k] = fac * temp2;
+            }
+        }
+    } else { // SCE or one non-coupled CPE
+        for (ch = 0; ch < (id_aac == TYPE_CPE) + 1; ch++) {
+            for (e = 1; e <= sbr->data[ch].bs_num_env; e++)
+                for (k = 0; k < sbr->n[sbr->data[ch].bs_freq_res[e]]; k++){
+                    if (sbr->data[ch].bs_amp_res)
+                        sbr->data[ch].env_facs[e][k] = ff_exp2fi(sbr->data[ch].env_facs_q[e][k] + 6);
+                    else
+                        sbr->data[ch].env_facs[e][k] = ff_exp2fi((sbr->data[ch].env_facs_q[e][k]>>1) + 6)
+                                                       * exp2_tab[sbr->data[ch].env_facs_q[e][k] & 1];
+                    if (sbr->data[ch].env_facs[e][k] > 1E20) {
+                        av_log(NULL, AV_LOG_ERROR, "envelope scalefactor overflow in dequant\n");
+                        sbr->data[ch].env_facs[e][k] = 1;
+                    }
+                }
+
+            for (e = 1; e <= sbr->data[ch].bs_num_noise; e++)
+                for (k = 0; k < sbr->n_q; k++)
+                    sbr->data[ch].noise_facs[e][k] =
+                        ff_exp2fi(NOISE_FLOOR_OFFSET - sbr->data[ch].noise_facs_q[e][k]);
+        }
+    }
+}
+
+/** High Frequency Generation (14496-3 sp04 p214+) and Inverse Filtering
+ * (14496-3 sp04 p214)
+ * Warning: This routine does not seem numerically stable.
+ */
+static void sbr_hf_inverse_filter(SBRDSPContext *dsp,
+                                  float (*alpha0)[2], float (*alpha1)[2],
+                                  const float X_low[32][40][2], int k0)
+{
+    int k;
+    for (k = 0; k < k0; k++) {
+        LOCAL_ALIGNED_16(float, phi, [3], [2][2]);
+        float dk;
+
+        dsp->autocorrelate(X_low[k], phi);
+
+        dk =  phi[2][1][0] * phi[1][0][0] -
+             (phi[1][1][0] * phi[1][1][0] + phi[1][1][1] * phi[1][1][1]) / 1.000001f;
+
+        if (!dk) {
+            alpha1[k][0] = 0;
+            alpha1[k][1] = 0;
+        } else {
+            float temp_real, temp_im;
+            temp_real = phi[0][0][0] * phi[1][1][0] -
+                        phi[0][0][1] * phi[1][1][1] -
+                        phi[0][1][0] * phi[1][0][0];
+            temp_im   = phi[0][0][0] * phi[1][1][1] +
+                        phi[0][0][1] * phi[1][1][0] -
+                        phi[0][1][1] * phi[1][0][0];
+
+            alpha1[k][0] = temp_real / dk;
+            alpha1[k][1] = temp_im   / dk;
+        }
+
+        if (!phi[1][0][0]) {
+            alpha0[k][0] = 0;
+            alpha0[k][1] = 0;
+        } else {
+            float temp_real, temp_im;
+            temp_real = phi[0][0][0] + alpha1[k][0] * phi[1][1][0] +
+                                       alpha1[k][1] * phi[1][1][1];
+            temp_im   = phi[0][0][1] + alpha1[k][1] * phi[1][1][0] -
+                                       alpha1[k][0] * phi[1][1][1];
+
+            alpha0[k][0] = -temp_real / phi[1][0][0];
+            alpha0[k][1] = -temp_im   / phi[1][0][0];
+        }
+
+        if (alpha1[k][0] * alpha1[k][0] + alpha1[k][1] * alpha1[k][1] >= 16.0f ||
+           alpha0[k][0] * alpha0[k][0] + alpha0[k][1] * alpha0[k][1] >= 16.0f) {
+            alpha1[k][0] = 0;
+            alpha1[k][1] = 0;
+            alpha0[k][0] = 0;
+            alpha0[k][1] = 0;
+        }
+    }
+}
+
+/// Chirp Factors (14496-3 sp04 p214)
+static void sbr_chirp(SpectralBandReplication *sbr, SBRData *ch_data)
+{
+    int i;
+    float new_bw;
+    static const float bw_tab[] = { 0.0f, 0.75f, 0.9f, 0.98f };
+
+    for (i = 0; i < sbr->n_q; i++) {
+        if (ch_data->bs_invf_mode[0][i] + ch_data->bs_invf_mode[1][i] == 1) {
+            new_bw = 0.6f;
+        } else
+            new_bw = bw_tab[ch_data->bs_invf_mode[0][i]];
+
+        if (new_bw < ch_data->bw_array[i]) {
+            new_bw = 0.75f    * new_bw + 0.25f    * ch_data->bw_array[i];
+        } else
+            new_bw = 0.90625f * new_bw + 0.09375f * ch_data->bw_array[i];
+        ch_data->bw_array[i] = new_bw < 0.015625f ? 0.0f : new_bw;
+    }
+}
+
+/**
+ * Calculation of levels of additional HF signal components (14496-3 sp04 p219)
+ * and Calculation of gain (14496-3 sp04 p219)
+ */
+static void sbr_gain_calc(AACContext *ac, SpectralBandReplication *sbr,
+                          SBRData *ch_data, const int e_a[2])
+{
+    int e, k, m;
+    // max gain limits : -3dB, 0dB, 3dB, inf dB (limiter off)
+    static const float limgain[4] = { 0.70795, 1.0, 1.41254, 10000000000 };
+
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        int delta = !((e == e_a[1]) || (e == e_a[0]));
+        for (k = 0; k < sbr->n_lim; k++) {
+            float gain_boost, gain_max;
+            float sum[2] = { 0.0f, 0.0f };
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                const float temp = sbr->e_origmapped[e][m] / (1.0f + sbr->q_mapped[e][m]);
+                sbr->q_m[e][m] = sqrtf(temp * sbr->q_mapped[e][m]);
+                sbr->s_m[e][m] = sqrtf(temp * ch_data->s_indexmapped[e + 1][m]);
+                if (!sbr->s_mapped[e][m]) {
+                    sbr->gain[e][m] = sqrtf(sbr->e_origmapped[e][m] /
+                                            ((1.0f + sbr->e_curr[e][m]) *
+                                             (1.0f + sbr->q_mapped[e][m] * delta)));
+                } else {
+                    sbr->gain[e][m] = sqrtf(sbr->e_origmapped[e][m] * sbr->q_mapped[e][m] /
+                                            ((1.0f + sbr->e_curr[e][m]) *
+                                             (1.0f + sbr->q_mapped[e][m])));
+                }
+                sbr->gain[e][m] += FLT_MIN;
+            }
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                sum[0] += sbr->e_origmapped[e][m];
+                sum[1] += sbr->e_curr[e][m];
+            }
+            gain_max = limgain[sbr->bs_limiter_gains] * sqrtf((FLT_EPSILON + sum[0]) / (FLT_EPSILON + sum[1]));
+            gain_max = FFMIN(100000.f, gain_max);
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                float q_m_max   = sbr->q_m[e][m] * gain_max / sbr->gain[e][m];
+                sbr->q_m[e][m]  = FFMIN(sbr->q_m[e][m], q_m_max);
+                sbr->gain[e][m] = FFMIN(sbr->gain[e][m], gain_max);
+            }
+            sum[0] = sum[1] = 0.0f;
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                sum[0] += sbr->e_origmapped[e][m];
+                sum[1] += sbr->e_curr[e][m] * sbr->gain[e][m] * sbr->gain[e][m]
+                          + sbr->s_m[e][m] * sbr->s_m[e][m]
+                          + (delta && !sbr->s_m[e][m]) * sbr->q_m[e][m] * sbr->q_m[e][m];
+            }
+            gain_boost = sqrtf((FLT_EPSILON + sum[0]) / (FLT_EPSILON + sum[1]));
+            gain_boost = FFMIN(1.584893192f, gain_boost);
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                sbr->gain[e][m] *= gain_boost;
+                sbr->q_m[e][m]  *= gain_boost;
+                sbr->s_m[e][m]  *= gain_boost;
+            }
+        }
+    }
+}
+
+/// Assembling HF Signals (14496-3 sp04 p220)
+static void sbr_hf_assemble(float Y1[38][64][2],
+                            const float X_high[64][40][2],
+                            SpectralBandReplication *sbr, SBRData *ch_data,
+                            const int e_a[2])
+{
+    int e, i, j, m;
+    const int h_SL = 4 * !sbr->bs_smoothing_mode;
+    const int kx = sbr->kx[1];
+    const int m_max = sbr->m[1];
+    static const float h_smooth[5] = {
+        0.33333333333333,
+        0.30150283239582,
+        0.21816949906249,
+        0.11516383427084,
+        0.03183050093751,
+    };
+    float (*g_temp)[48] = ch_data->g_temp, (*q_temp)[48] = ch_data->q_temp;
+    int indexnoise = ch_data->f_indexnoise;
+    int indexsine  = ch_data->f_indexsine;
+
+    if (sbr->reset) {
+        for (i = 0; i < h_SL; i++) {
+            memcpy(g_temp[i + 2*ch_data->t_env[0]], sbr->gain[0], m_max * sizeof(sbr->gain[0][0]));
+            memcpy(q_temp[i + 2*ch_data->t_env[0]], sbr->q_m[0],  m_max * sizeof(sbr->q_m[0][0]));
+        }
+    } else if (h_SL) {
+        for (i = 0; i < 4; i++) {
+            memcpy(g_temp[i + 2 * ch_data->t_env[0]],
+                   g_temp[i + 2 * ch_data->t_env_num_env_old],
+                   sizeof(g_temp[0]));
+            memcpy(q_temp[i + 2 * ch_data->t_env[0]],
+                   q_temp[i + 2 * ch_data->t_env_num_env_old],
+                   sizeof(q_temp[0]));
+        }
+    }
+
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
+            memcpy(g_temp[h_SL + i], sbr->gain[e], m_max * sizeof(sbr->gain[0][0]));
+            memcpy(q_temp[h_SL + i], sbr->q_m[e],  m_max * sizeof(sbr->q_m[0][0]));
+        }
+    }
+
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
+            LOCAL_ALIGNED_16(float, g_filt_tab, [48]);
+            LOCAL_ALIGNED_16(float, q_filt_tab, [48]);
+            float *g_filt, *q_filt;
+
+            if (h_SL && e != e_a[0] && e != e_a[1]) {
+                g_filt = g_filt_tab;
+                q_filt = q_filt_tab;
+                for (m = 0; m < m_max; m++) {
+                    const int idx1 = i + h_SL;
+                    g_filt[m] = 0.0f;
+                    q_filt[m] = 0.0f;
+                    for (j = 0; j <= h_SL; j++) {
+                        g_filt[m] += g_temp[idx1 - j][m] * h_smooth[j];
+                        q_filt[m] += q_temp[idx1 - j][m] * h_smooth[j];
+                    }
+                }
+            } else {
+                g_filt = g_temp[i + h_SL];
+                q_filt = q_temp[i];
+            }
+
+            sbr->dsp.hf_g_filt(Y1[i] + kx, X_high + kx, g_filt, m_max,
+                               i + ENVELOPE_ADJUSTMENT_OFFSET);
+
+            if (e != e_a[0] && e != e_a[1]) {
+                sbr->dsp.hf_apply_noise[indexsine](Y1[i] + kx, sbr->s_m[e],
+                                                   q_filt, indexnoise,
+                                                   kx, m_max);
+            } else {
+                int idx = indexsine&1;
+                int A = (1-((indexsine+(kx & 1))&2));
+                int B = (A^(-idx)) + idx;
+                float *out = &Y1[i][kx][idx];
+                float *in  = sbr->s_m[e];
+                for (m = 0; m+1 < m_max; m+=2) {
+                    out[2*m  ] += in[m  ] * A;
+                    out[2*m+2] += in[m+1] * B;
+                }
+                if(m_max&1)
+                    out[2*m  ] += in[m  ] * A;
+            }
+            indexnoise = (indexnoise + m_max) & 0x1ff;
+            indexsine = (indexsine + 1) & 3;
+        }
+    }
+    ch_data->f_indexnoise = indexnoise;
+    ch_data->f_indexsine  = indexsine;
+}
+
+#include "aacsbr_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr.h
new file mode 100644
index 000000000..dd8b66c7b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr.h
@@ -0,0 +1,96 @@
+/*
+ * AAC Spectral Band Replication function declarations
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ * Copyright (c) 2010      Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC Spectral Band Replication function declarations
+ * @author Robert Swain ( rob opendot cl )
+ */
+
+#ifndef AVCODEC_AACSBR_H
+#define AVCODEC_AACSBR_H
+
+#include "get_bits.h"
+#include "aac.h"
+#include "sbr.h"
+
+#define ENVELOPE_ADJUSTMENT_OFFSET 2
+#define NOISE_FLOOR_OFFSET 6
+
+/**
+ * SBR VLC tables
+ */
+enum {
+    T_HUFFMAN_ENV_1_5DB,
+    F_HUFFMAN_ENV_1_5DB,
+    T_HUFFMAN_ENV_BAL_1_5DB,
+    F_HUFFMAN_ENV_BAL_1_5DB,
+    T_HUFFMAN_ENV_3_0DB,
+    F_HUFFMAN_ENV_3_0DB,
+    T_HUFFMAN_ENV_BAL_3_0DB,
+    F_HUFFMAN_ENV_BAL_3_0DB,
+    T_HUFFMAN_NOISE_3_0DB,
+    T_HUFFMAN_NOISE_BAL_3_0DB,
+};
+
+/**
+ * bs_frame_class - frame class of current SBR frame (14496-3 sp04 p98)
+ */
+enum {
+    FIXFIX,
+    FIXVAR,
+    VARFIX,
+    VARVAR,
+};
+
+enum {
+    EXTENSION_ID_PS = 2,
+};
+
+static const int8_t vlc_sbr_lav[10] =
+    { 60, 60, 24, 24, 31, 31, 12, 12, 31, 12 };
+
+#define SBR_INIT_VLC_STATIC(num, size) \
+    INIT_VLC_STATIC(&vlc_sbr[num], 9, sbr_tmp[num].table_size / sbr_tmp[num].elem_size,     \
+                    sbr_tmp[num].sbr_bits ,                      1,                      1, \
+                    sbr_tmp[num].sbr_codes, sbr_tmp[num].elem_size, sbr_tmp[num].elem_size, \
+                    size)
+
+#define SBR_VLC_ROW(name) \
+    { name ## _codes, name ## _bits, sizeof(name ## _codes), sizeof(name ## _codes[0]) }
+
+/** Initialize SBR. */
+void AAC_RENAME(ff_aac_sbr_init)(void);
+/** Initialize one SBR context. */
+void AAC_RENAME(ff_aac_sbr_ctx_init)(AACContext *ac, SpectralBandReplication *sbr, int id_aac);
+/** Close one SBR context. */
+void AAC_RENAME(ff_aac_sbr_ctx_close)(SpectralBandReplication *sbr);
+/** Decode one SBR element. */
+int AAC_RENAME(ff_decode_sbr_extension)(AACContext *ac, SpectralBandReplication *sbr,
+                            GetBitContext *gb, int crc, int cnt, int id_aac);
+/** Apply one SBR element to one AAC element. */
+void AAC_RENAME(ff_sbr_apply)(AACContext *ac, SpectralBandReplication *sbr, int id_aac,
+                  INTFLOAT* L, INTFLOAT *R);
+
+void ff_aacsbr_func_ptr_init_mips(AACSBRContext *c);
+
+#endif /* AVCODEC_AACSBR_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_fixed.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_fixed.c
new file mode 100644
index 000000000..59cbba10f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_fixed.c
@@ -0,0 +1,613 @@
+/*
+ * Copyright (c) 2013
+ *      MIPS Technologies, Inc., California.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * AAC Spectral Band Replication decoding functions (fixed-point)
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ * Copyright (c) 2009-2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC Spectral Band Replication decoding functions (fixed-point)
+ * Note: Rounding-to-nearest used unless otherwise stated
+ * @author Robert Swain ( rob opendot cl )
+ * @author Stanislav Ocovaj ( stanislav.ocovaj imgtec com )
+ */
+#define USE_FIXED 1
+
+#include "aac.h"
+#include "sbr.h"
+#include "aacsbr.h"
+#include "aacsbrdata.h"
+#include "aacsbr_fixed_tablegen.h"
+#include "fft.h"
+#include "aacps.h"
+#include "sbrdsp.h"
+#include "libavutil/internal.h"
+#include "libavutil/libm.h"
+#include "libavutil/avassert.h"
+
+#include <stdint.h>
+#include <float.h>
+#include <math.h>
+
+static VLC vlc_sbr[10];
+static void aacsbr_func_ptr_init(AACSBRContext *c);
+static const int CONST_LN2       = Q31(0.6931471806/256);  // ln(2)/256
+static const int CONST_RECIP_LN2 = Q31(0.7213475204);      // 0.5/ln(2)
+static const int CONST_076923    = Q31(0.76923076923076923077f);
+
+static const int fixed_log_table[10] =
+{
+    Q31(1.0/2), Q31(1.0/3), Q31(1.0/4), Q31(1.0/5), Q31(1.0/6),
+    Q31(1.0/7), Q31(1.0/8), Q31(1.0/9), Q31(1.0/10), Q31(1.0/11)
+};
+
+static int fixed_log(int x)
+{
+    int i, ret, xpow, tmp;
+
+    ret = x;
+    xpow = x;
+    for (i=0; i<10; i+=2){
+        xpow = (int)(((int64_t)xpow * x + 0x40000000) >> 31);
+        tmp = (int)(((int64_t)xpow * fixed_log_table[i] + 0x40000000) >> 31);
+        ret -= tmp;
+
+        xpow = (int)(((int64_t)xpow * x + 0x40000000) >> 31);
+        tmp = (int)(((int64_t)xpow * fixed_log_table[i+1] + 0x40000000) >> 31);
+        ret += tmp;
+    }
+
+    return ret;
+}
+
+static const int fixed_exp_table[7] =
+{
+    Q31(1.0/2), Q31(1.0/6), Q31(1.0/24), Q31(1.0/120),
+    Q31(1.0/720), Q31(1.0/5040), Q31(1.0/40320)
+};
+
+static int fixed_exp(int x)
+{
+    int i, ret, xpow, tmp;
+
+    ret = 0x800000 + x;
+    xpow = x;
+    for (i=0; i<7; i++){
+        xpow = (int)(((int64_t)xpow * x + 0x400000) >> 23);
+        tmp = (int)(((int64_t)xpow * fixed_exp_table[i] + 0x40000000) >> 31);
+        ret += tmp;
+    }
+
+    return ret;
+}
+
+static void make_bands(int16_t* bands, int start, int stop, int num_bands)
+{
+    int k, previous, present;
+    int base, prod, nz = 0;
+
+    base = (stop << 23) / start;
+    while (base < 0x40000000){
+        base <<= 1;
+        nz++;
+    }
+    base = fixed_log(base - 0x80000000);
+    base = (((base + 0x80) >> 8) + (8-nz)*CONST_LN2) / num_bands;
+    base = fixed_exp(base);
+
+    previous = start;
+    prod = start << 23;
+
+    for (k = 0; k < num_bands-1; k++) {
+        prod = (int)(((int64_t)prod * base + 0x400000) >> 23);
+        present = (prod + 0x400000) >> 23;
+        bands[k] = present - previous;
+        previous = present;
+    }
+    bands[num_bands-1] = stop - previous;
+}
+
+/// Dequantization and stereo decoding (14496-3 sp04 p203)
+static void sbr_dequant(SpectralBandReplication *sbr, int id_aac)
+{
+    int k, e;
+    int ch;
+
+    if (id_aac == TYPE_CPE && sbr->bs_coupling) {
+        int alpha      = sbr->data[0].bs_amp_res ?  2 :  1;
+        int pan_offset = sbr->data[0].bs_amp_res ? 12 : 24;
+        for (e = 1; e <= sbr->data[0].bs_num_env; e++) {
+            for (k = 0; k < sbr->n[sbr->data[0].bs_freq_res[e]]; k++) {
+                SoftFloat temp1, temp2, fac;
+
+                temp1.exp = sbr->data[0].env_facs_q[e][k] * alpha + 14;
+                if (temp1.exp & 1)
+                  temp1.mant = 759250125;
+                else
+                  temp1.mant = 0x20000000;
+                temp1.exp = (temp1.exp >> 1) + 1;
+                if (temp1.exp > 66) { // temp1 > 1E20
+                    av_log(NULL, AV_LOG_ERROR, "envelope scalefactor overflow in dequant\n");
+                    temp1 = FLOAT_1;
+                }
+
+                temp2.exp = (pan_offset - sbr->data[1].env_facs_q[e][k]) * alpha;
+                if (temp2.exp & 1)
+                  temp2.mant = 759250125;
+                else
+                  temp2.mant = 0x20000000;
+                temp2.exp = (temp2.exp >> 1) + 1;
+                fac   = av_div_sf(temp1, av_add_sf(FLOAT_1, temp2));
+                sbr->data[0].env_facs[e][k] = fac;
+                sbr->data[1].env_facs[e][k] = av_mul_sf(fac, temp2);
+            }
+        }
+        for (e = 1; e <= sbr->data[0].bs_num_noise; e++) {
+            for (k = 0; k < sbr->n_q; k++) {
+                SoftFloat temp1, temp2, fac;
+
+                temp1.exp = NOISE_FLOOR_OFFSET - \
+                    sbr->data[0].noise_facs_q[e][k] + 2;
+                temp1.mant = 0x20000000;
+                av_assert0(temp1.exp <= 66);
+                temp2.exp = 12 - sbr->data[1].noise_facs_q[e][k] + 1;
+                temp2.mant = 0x20000000;
+                fac   = av_div_sf(temp1, av_add_sf(FLOAT_1, temp2));
+                sbr->data[0].noise_facs[e][k] = fac;
+                sbr->data[1].noise_facs[e][k] = av_mul_sf(fac, temp2);
+            }
+        }
+    } else { // SCE or one non-coupled CPE
+        for (ch = 0; ch < (id_aac == TYPE_CPE) + 1; ch++) {
+            int alpha = sbr->data[ch].bs_amp_res ? 2 : 1;
+            for (e = 1; e <= sbr->data[ch].bs_num_env; e++)
+                for (k = 0; k < sbr->n[sbr->data[ch].bs_freq_res[e]]; k++){
+                    SoftFloat temp1;
+
+                    temp1.exp = alpha * sbr->data[ch].env_facs_q[e][k] + 12;
+                    if (temp1.exp & 1)
+                        temp1.mant = 759250125;
+                    else
+                        temp1.mant = 0x20000000;
+                    temp1.exp = (temp1.exp >> 1) + 1;
+                    if (temp1.exp > 66) { // temp1 > 1E20
+                        av_log(NULL, AV_LOG_ERROR, "envelope scalefactor overflow in dequant\n");
+                        temp1 = FLOAT_1;
+                    }
+                    sbr->data[ch].env_facs[e][k] = temp1;
+                }
+            for (e = 1; e <= sbr->data[ch].bs_num_noise; e++)
+                for (k = 0; k < sbr->n_q; k++){
+                    sbr->data[ch].noise_facs[e][k].exp = NOISE_FLOOR_OFFSET - \
+                        sbr->data[ch].noise_facs_q[e][k] + 1;
+                    sbr->data[ch].noise_facs[e][k].mant = 0x20000000;
+                }
+        }
+    }
+}
+
+/** High Frequency Generation (14496-3 sp04 p214+) and Inverse Filtering
+ * (14496-3 sp04 p214)
+ * Warning: This routine does not seem numerically stable.
+ */
+static void sbr_hf_inverse_filter(SBRDSPContext *dsp,
+                                  int (*alpha0)[2], int (*alpha1)[2],
+                                  const int X_low[32][40][2], int k0)
+{
+    int k;
+    int shift, round;
+
+    for (k = 0; k < k0; k++) {
+        SoftFloat phi[3][2][2];
+        SoftFloat a00, a01, a10, a11;
+        SoftFloat dk;
+
+        dsp->autocorrelate(X_low[k], phi);
+
+        dk = av_sub_sf(av_mul_sf(phi[2][1][0], phi[1][0][0]),
+             av_mul_sf(av_add_sf(av_mul_sf(phi[1][1][0], phi[1][1][0]),
+             av_mul_sf(phi[1][1][1], phi[1][1][1])), FLOAT_0999999));
+
+        if (!dk.mant) {
+            a10 = FLOAT_0;
+            a11 = FLOAT_0;
+        } else {
+            SoftFloat temp_real, temp_im;
+            temp_real = av_sub_sf(av_sub_sf(av_mul_sf(phi[0][0][0], phi[1][1][0]),
+                                            av_mul_sf(phi[0][0][1], phi[1][1][1])),
+                                  av_mul_sf(phi[0][1][0], phi[1][0][0]));
+            temp_im   = av_sub_sf(av_add_sf(av_mul_sf(phi[0][0][0], phi[1][1][1]),
+                                            av_mul_sf(phi[0][0][1], phi[1][1][0])),
+                                  av_mul_sf(phi[0][1][1], phi[1][0][0]));
+
+            a10 = av_div_sf(temp_real, dk);
+            a11 = av_div_sf(temp_im,   dk);
+        }
+
+        if (!phi[1][0][0].mant) {
+            a00 = FLOAT_0;
+            a01 = FLOAT_0;
+        } else {
+            SoftFloat temp_real, temp_im;
+            temp_real = av_add_sf(phi[0][0][0],
+                                  av_add_sf(av_mul_sf(a10, phi[1][1][0]),
+                                            av_mul_sf(a11, phi[1][1][1])));
+            temp_im   = av_add_sf(phi[0][0][1],
+                                  av_sub_sf(av_mul_sf(a11, phi[1][1][0]),
+                                            av_mul_sf(a10, phi[1][1][1])));
+
+            temp_real.mant = -temp_real.mant;
+            temp_im.mant   = -temp_im.mant;
+            a00 = av_div_sf(temp_real, phi[1][0][0]);
+            a01 = av_div_sf(temp_im,   phi[1][0][0]);
+        }
+
+        shift = a00.exp;
+        if (shift >= 3)
+            alpha0[k][0] = 0x7fffffff;
+        else if (shift <= -30)
+            alpha0[k][0] = 0;
+        else {
+            shift = 1-shift;
+            if (shift <= 0)
+                alpha0[k][0] = a00.mant * (1<<-shift);
+            else {
+                round = 1 << (shift-1);
+                alpha0[k][0] = (a00.mant + round) >> shift;
+            }
+        }
+
+        shift = a01.exp;
+        if (shift >= 3)
+            alpha0[k][1] = 0x7fffffff;
+        else if (shift <= -30)
+            alpha0[k][1] = 0;
+        else {
+            shift = 1-shift;
+            if (shift <= 0)
+                alpha0[k][1] = a01.mant * (1<<-shift);
+            else {
+                round = 1 << (shift-1);
+                alpha0[k][1] = (a01.mant + round) >> shift;
+            }
+        }
+        shift = a10.exp;
+        if (shift >= 3)
+            alpha1[k][0] = 0x7fffffff;
+        else if (shift <= -30)
+            alpha1[k][0] = 0;
+        else {
+            shift = 1-shift;
+            if (shift <= 0)
+                alpha1[k][0] = a10.mant * (1<<-shift);
+            else {
+                round = 1 << (shift-1);
+                alpha1[k][0] = (a10.mant + round) >> shift;
+            }
+        }
+
+        shift = a11.exp;
+        if (shift >= 3)
+            alpha1[k][1] = 0x7fffffff;
+        else if (shift <= -30)
+            alpha1[k][1] = 0;
+        else {
+            shift = 1-shift;
+            if (shift <= 0)
+                alpha1[k][1] = a11.mant * (1<<-shift);
+            else {
+                round = 1 << (shift-1);
+                alpha1[k][1] = (a11.mant + round) >> shift;
+            }
+        }
+
+        shift = (int)(((int64_t)(alpha1[k][0]>>1) * (alpha1[k][0]>>1) + \
+                       (int64_t)(alpha1[k][1]>>1) * (alpha1[k][1]>>1) + \
+                       0x40000000) >> 31);
+        if (shift >= 0x20000000){
+            alpha1[k][0] = 0;
+            alpha1[k][1] = 0;
+            alpha0[k][0] = 0;
+            alpha0[k][1] = 0;
+        }
+
+        shift = (int)(((int64_t)(alpha0[k][0]>>1) * (alpha0[k][0]>>1) + \
+                       (int64_t)(alpha0[k][1]>>1) * (alpha0[k][1]>>1) + \
+                       0x40000000) >> 31);
+        if (shift >= 0x20000000){
+            alpha1[k][0] = 0;
+            alpha1[k][1] = 0;
+            alpha0[k][0] = 0;
+            alpha0[k][1] = 0;
+        }
+    }
+}
+
+/// Chirp Factors (14496-3 sp04 p214)
+static void sbr_chirp(SpectralBandReplication *sbr, SBRData *ch_data)
+{
+    int i;
+    int new_bw;
+    static const int bw_tab[] = { 0, 1610612736, 1932735283, 2104533975 };
+    int64_t accu;
+
+    for (i = 0; i < sbr->n_q; i++) {
+        if (ch_data->bs_invf_mode[0][i] + ch_data->bs_invf_mode[1][i] == 1)
+            new_bw = 1288490189;
+        else
+            new_bw = bw_tab[ch_data->bs_invf_mode[0][i]];
+
+        if (new_bw < ch_data->bw_array[i]){
+            accu  = (int64_t)new_bw * 1610612736;
+            accu += (int64_t)ch_data->bw_array[i] * 0x20000000;
+            new_bw = (int)((accu + 0x40000000) >> 31);
+        } else {
+            accu  = (int64_t)new_bw * 1946157056;
+            accu += (int64_t)ch_data->bw_array[i] * 201326592;
+            new_bw = (int)((accu + 0x40000000) >> 31);
+        }
+        ch_data->bw_array[i] = new_bw < 0x2000000 ? 0 : new_bw;
+    }
+}
+
+/**
+ * Calculation of levels of additional HF signal components (14496-3 sp04 p219)
+ * and Calculation of gain (14496-3 sp04 p219)
+ */
+static void sbr_gain_calc(AACContext *ac, SpectralBandReplication *sbr,
+                          SBRData *ch_data, const int e_a[2])
+{
+    int e, k, m;
+    // max gain limits : -3dB, 0dB, 3dB, inf dB (limiter off)
+    static const SoftFloat limgain[4] = { { 760155524,  0 }, { 0x20000000,  1 },
+                                            { 758351638,  1 }, { 625000000, 34 } };
+
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        int delta = !((e == e_a[1]) || (e == e_a[0]));
+        for (k = 0; k < sbr->n_lim; k++) {
+            SoftFloat gain_boost, gain_max;
+            SoftFloat sum[2];
+            sum[0] = sum[1] = FLOAT_0;
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                const SoftFloat temp = av_div_sf(sbr->e_origmapped[e][m],
+                                            av_add_sf(FLOAT_1, sbr->q_mapped[e][m]));
+                sbr->q_m[e][m] = av_sqrt_sf(av_mul_sf(temp, sbr->q_mapped[e][m]));
+                sbr->s_m[e][m] = av_sqrt_sf(av_mul_sf(temp, av_int2sf(ch_data->s_indexmapped[e + 1][m], 0)));
+                if (!sbr->s_mapped[e][m]) {
+                    if (delta) {
+                      sbr->gain[e][m] = av_sqrt_sf(av_div_sf(sbr->e_origmapped[e][m],
+                                            av_mul_sf(av_add_sf(FLOAT_1, sbr->e_curr[e][m]),
+                                            av_add_sf(FLOAT_1, sbr->q_mapped[e][m]))));
+                    } else {
+                      sbr->gain[e][m] = av_sqrt_sf(av_div_sf(sbr->e_origmapped[e][m],
+                                            av_add_sf(FLOAT_1, sbr->e_curr[e][m])));
+                    }
+                } else {
+                    sbr->gain[e][m] = av_sqrt_sf(
+                                        av_div_sf(
+                                            av_mul_sf(sbr->e_origmapped[e][m], sbr->q_mapped[e][m]),
+                                            av_mul_sf(
+                                                av_add_sf(FLOAT_1, sbr->e_curr[e][m]),
+                                                av_add_sf(FLOAT_1, sbr->q_mapped[e][m]))));
+                }
+                sbr->gain[e][m] = av_add_sf(sbr->gain[e][m], FLOAT_MIN);
+            }
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                sum[0] = av_add_sf(sum[0], sbr->e_origmapped[e][m]);
+                sum[1] = av_add_sf(sum[1], sbr->e_curr[e][m]);
+            }
+            gain_max = av_mul_sf(limgain[sbr->bs_limiter_gains],
+                            av_sqrt_sf(
+                                av_div_sf(
+                                    av_add_sf(FLOAT_EPSILON, sum[0]),
+                                    av_add_sf(FLOAT_EPSILON, sum[1]))));
+            if (av_gt_sf(gain_max, FLOAT_100000))
+              gain_max = FLOAT_100000;
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                SoftFloat q_m_max = av_div_sf(
+                                        av_mul_sf(sbr->q_m[e][m], gain_max),
+                                        sbr->gain[e][m]);
+                if (av_gt_sf(sbr->q_m[e][m], q_m_max))
+                  sbr->q_m[e][m] = q_m_max;
+                if (av_gt_sf(sbr->gain[e][m], gain_max))
+                  sbr->gain[e][m] = gain_max;
+            }
+            sum[0] = sum[1] = FLOAT_0;
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                sum[0] = av_add_sf(sum[0], sbr->e_origmapped[e][m]);
+                sum[1] = av_add_sf(sum[1],
+                            av_mul_sf(
+                                av_mul_sf(sbr->e_curr[e][m],
+                                          sbr->gain[e][m]),
+                                sbr->gain[e][m]));
+                sum[1] = av_add_sf(sum[1],
+                            av_mul_sf(sbr->s_m[e][m], sbr->s_m[e][m]));
+                if (delta && !sbr->s_m[e][m].mant)
+                  sum[1] = av_add_sf(sum[1],
+                                av_mul_sf(sbr->q_m[e][m], sbr->q_m[e][m]));
+            }
+            gain_boost = av_sqrt_sf(
+                            av_div_sf(
+                                av_add_sf(FLOAT_EPSILON, sum[0]),
+                                av_add_sf(FLOAT_EPSILON, sum[1])));
+            if (av_gt_sf(gain_boost, FLOAT_1584893192))
+              gain_boost = FLOAT_1584893192;
+
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                sbr->gain[e][m] = av_mul_sf(sbr->gain[e][m], gain_boost);
+                sbr->q_m[e][m]  = av_mul_sf(sbr->q_m[e][m], gain_boost);
+                sbr->s_m[e][m]  = av_mul_sf(sbr->s_m[e][m], gain_boost);
+            }
+        }
+    }
+}
+
+/// Assembling HF Signals (14496-3 sp04 p220)
+static void sbr_hf_assemble(int Y1[38][64][2],
+                            const int X_high[64][40][2],
+                            SpectralBandReplication *sbr, SBRData *ch_data,
+                            const int e_a[2])
+{
+    int e, i, j, m;
+    const int h_SL = 4 * !sbr->bs_smoothing_mode;
+    const int kx = sbr->kx[1];
+    const int m_max = sbr->m[1];
+    static const SoftFloat h_smooth[5] = {
+      { 715827883, -1 },
+      { 647472402, -1 },
+      { 937030863, -2 },
+      { 989249804, -3 },
+      { 546843842, -4 },
+    };
+    SoftFloat (*g_temp)[48] = ch_data->g_temp, (*q_temp)[48] = ch_data->q_temp;
+    int indexnoise = ch_data->f_indexnoise;
+    int indexsine  = ch_data->f_indexsine;
+
+    if (sbr->reset) {
+        for (i = 0; i < h_SL; i++) {
+            memcpy(g_temp[i + 2*ch_data->t_env[0]], sbr->gain[0], m_max * sizeof(sbr->gain[0][0]));
+            memcpy(q_temp[i + 2*ch_data->t_env[0]], sbr->q_m[0],  m_max * sizeof(sbr->q_m[0][0]));
+        }
+    } else if (h_SL) {
+        for (i = 0; i < 4; i++) {
+            memcpy(g_temp[i + 2 * ch_data->t_env[0]],
+                   g_temp[i + 2 * ch_data->t_env_num_env_old],
+                   sizeof(g_temp[0]));
+            memcpy(q_temp[i + 2 * ch_data->t_env[0]],
+                   q_temp[i + 2 * ch_data->t_env_num_env_old],
+                   sizeof(q_temp[0]));
+        }
+    }
+
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
+            memcpy(g_temp[h_SL + i], sbr->gain[e], m_max * sizeof(sbr->gain[0][0]));
+            memcpy(q_temp[h_SL + i], sbr->q_m[e],  m_max * sizeof(sbr->q_m[0][0]));
+        }
+    }
+
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
+            SoftFloat g_filt_tab[48];
+            SoftFloat q_filt_tab[48];
+            SoftFloat *g_filt, *q_filt;
+
+            if (h_SL && e != e_a[0] && e != e_a[1]) {
+                g_filt = g_filt_tab;
+                q_filt = q_filt_tab;
+                for (m = 0; m < m_max; m++) {
+                    const int idx1 = i + h_SL;
+                    g_filt[m].mant = g_filt[m].exp = 0;
+                    q_filt[m].mant = q_filt[m].exp = 0;
+                    for (j = 0; j <= h_SL; j++) {
+                        g_filt[m] = av_add_sf(g_filt[m],
+                                        av_mul_sf(g_temp[idx1 - j][m],
+                                            h_smooth[j]));
+                        q_filt[m] = av_add_sf(q_filt[m],
+                                        av_mul_sf(q_temp[idx1 - j][m],
+                                            h_smooth[j]));
+                    }
+                }
+            } else {
+                g_filt = g_temp[i + h_SL];
+                q_filt = q_temp[i];
+            }
+
+            sbr->dsp.hf_g_filt(Y1[i] + kx, X_high + kx, g_filt, m_max,
+                               i + ENVELOPE_ADJUSTMENT_OFFSET);
+
+            if (e != e_a[0] && e != e_a[1]) {
+                sbr->dsp.hf_apply_noise[indexsine](Y1[i] + kx, sbr->s_m[e],
+                                                   q_filt, indexnoise,
+                                                   kx, m_max);
+            } else {
+                int idx = indexsine&1;
+                int A = (1-((indexsine+(kx & 1))&2));
+                int B = (A^(-idx)) + idx;
+                unsigned *out = &Y1[i][kx][idx];
+                int shift;
+                unsigned round;
+
+                SoftFloat *in  = sbr->s_m[e];
+                for (m = 0; m+1 < m_max; m+=2) {
+                    int shift2;
+                    shift = 22 - in[m  ].exp;
+                    shift2= 22 - in[m+1].exp;
+                    if (shift < 1 || shift2 < 1) {
+                        av_log(NULL, AV_LOG_ERROR, "Overflow in sbr_hf_assemble, shift=%d,%d\n", shift, shift2);
+                        return;
+                    }
+                    if (shift < 32) {
+                        round = 1 << (shift-1);
+                        out[2*m  ] += (int)(in[m  ].mant * A + round) >> shift;
+                    }
+
+                    if (shift2 < 32) {
+                        round = 1 << (shift2-1);
+                        out[2*m+2] += (int)(in[m+1].mant * B + round) >> shift2;
+                    }
+                }
+                if(m_max&1)
+                {
+                    shift = 22 - in[m  ].exp;
+                    if (shift < 1) {
+                        av_log(NULL, AV_LOG_ERROR, "Overflow in sbr_hf_assemble, shift=%d\n", shift);
+                        return;
+                    } else if (shift < 32) {
+                        round = 1 << (shift-1);
+                        out[2*m  ] += (int)(in[m  ].mant * A + round) >> shift;
+                    }
+                }
+            }
+            indexnoise = (indexnoise + m_max) & 0x1ff;
+            indexsine = (indexsine + 1) & 3;
+        }
+    }
+    ch_data->f_indexnoise = indexnoise;
+    ch_data->f_indexsine  = indexsine;
+}
+
+#include "aacsbr_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_fixed_tablegen.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_fixed_tablegen.h
new file mode 100644
index 000000000..3fcf0204c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_fixed_tablegen.h
@@ -0,0 +1,28 @@
+/*
+ * Header file for hardcoded AAC SBR windows
+ *
+ * Copyright (c) 2014 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AACSBR_FIXED_TABLEGEN_H
+#define AVCODEC_AACSBR_FIXED_TABLEGEN_H
+
+#include "aacsbr_tablegen_common.h"
+
+#endif /* AVCODEC_AACSBR_FIXED_TABLEGEN_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_tablegen.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_tablegen.h
new file mode 100644
index 000000000..242a96355
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_tablegen.h
@@ -0,0 +1,28 @@
+/*
+ * Header file for hardcoded AAC SBR windows
+ *
+ * Copyright (c) 2014 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AACSBR_TABLEGEN_H
+#define AVCODEC_AACSBR_TABLEGEN_H
+
+#include "aacsbr_tablegen_common.h"
+
+#endif /* AVCODEC_AACSBR_TABLEGEN_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_tablegen_common.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_tablegen_common.h
new file mode 100644
index 000000000..8e0dd9e1f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_tablegen_common.h
@@ -0,0 +1,114 @@
+/*
+ * Header file for hardcoded AAC SBR windows
+ *
+ * Copyright (c) 2014 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AACSBR_TABLEGEN_COMMON_H
+#define AVCODEC_AACSBR_TABLEGEN_COMMON_H
+#include "aac_defines.h"
+#include "libavutil/mem.h"
+
+///< window coefficients for analysis/synthesis QMF banks
+static DECLARE_ALIGNED(32, INTFLOAT, sbr_qmf_window_ds)[320];
+static DECLARE_ALIGNED(32, INTFLOAT, sbr_qmf_window_us)[640] = {
+    Q31( 0.0000000000f), Q31(-0.0005525286f), Q31(-0.0005617692f), Q31(-0.0004947518f),
+    Q31(-0.0004875227f), Q31(-0.0004893791f), Q31(-0.0005040714f), Q31(-0.0005226564f),
+    Q31(-0.0005466565f), Q31(-0.0005677802f), Q31(-0.0005870930f), Q31(-0.0006132747f),
+    Q31(-0.0006312493f), Q31(-0.0006540333f), Q31(-0.0006777690f), Q31(-0.0006941614f),
+    Q31(-0.0007157736f), Q31(-0.0007255043f), Q31(-0.0007440941f), Q31(-0.0007490598f),
+    Q31(-0.0007681371f), Q31(-0.0007724848f), Q31(-0.0007834332f), Q31(-0.0007779869f),
+    Q31(-0.0007803664f), Q31(-0.0007801449f), Q31(-0.0007757977f), Q31(-0.0007630793f),
+    Q31(-0.0007530001f), Q31(-0.0007319357f), Q31(-0.0007215391f), Q31(-0.0006917937f),
+    Q31(-0.0006650415f), Q31(-0.0006341594f), Q31(-0.0005946118f), Q31(-0.0005564576f),
+    Q31(-0.0005145572f), Q31(-0.0004606325f), Q31(-0.0004095121f), Q31(-0.0003501175f),
+    Q31(-0.0002896981f), Q31(-0.0002098337f), Q31(-0.0001446380f), Q31(-0.0000617334f),
+    Q31( 0.0000134949f), Q31( 0.0001094383f), Q31( 0.0002043017f), Q31( 0.0002949531f),
+    Q31( 0.0004026540f), Q31( 0.0005107388f), Q31( 0.0006239376f), Q31( 0.0007458025f),
+    Q31( 0.0008608443f), Q31( 0.0009885988f), Q31( 0.0011250155f), Q31( 0.0012577884f),
+    Q31( 0.0013902494f), Q31( 0.0015443219f), Q31( 0.0016868083f), Q31( 0.0018348265f),
+    Q31( 0.0019841140f), Q31( 0.0021461583f), Q31( 0.0023017254f), Q31( 0.0024625616f),
+    Q31( 0.0026201758f), Q31( 0.0027870464f), Q31( 0.0029469447f), Q31( 0.0031125420f),
+    Q31( 0.0032739613f), Q31( 0.0034418874f), Q31( 0.0036008268f), Q31( 0.0037603922f),
+    Q31( 0.0039207432f), Q31( 0.0040819753f), Q31( 0.0042264269f), Q31( 0.0043730719f),
+    Q31( 0.0045209852f), Q31( 0.0046606460f), Q31( 0.0047932560f), Q31( 0.0049137603f),
+    Q31( 0.0050393022f), Q31( 0.0051407353f), Q31( 0.0052461166f), Q31( 0.0053471681f),
+    Q31( 0.0054196775f), Q31( 0.0054876040f), Q31( 0.0055475714f), Q31( 0.0055938023f),
+    Q31( 0.0056220643f), Q31( 0.0056455196f), Q31( 0.0056389199f), Q31( 0.0056266114f),
+    Q31( 0.0055917128f), Q31( 0.0055404363f), Q31( 0.0054753783f), Q31( 0.0053838975f),
+    Q31( 0.0052715758f), Q31( 0.0051382275f), Q31( 0.0049839687f), Q31( 0.0048109469f),
+    Q31( 0.0046039530f), Q31( 0.0043801861f), Q31( 0.0041251642f), Q31( 0.0038456408f),
+    Q31( 0.0035401246f), Q31( 0.0032091885f), Q31( 0.0028446757f), Q31( 0.0024508540f),
+    Q31( 0.0020274176f), Q31( 0.0015784682f), Q31( 0.0010902329f), Q31( 0.0005832264f),
+    Q31( 0.0000276045f), Q31(-0.0005464280f), Q31(-0.0011568135f), Q31(-0.0018039472f),
+    Q31(-0.0024826723f), Q31(-0.0031933778f), Q31(-0.0039401124f), Q31(-0.0047222596f),
+    Q31(-0.0055337211f), Q31(-0.0063792293f), Q31(-0.0072615816f), Q31(-0.0081798233f),
+    Q31(-0.0091325329f), Q31(-0.0101150215f), Q31(-0.0111315548f), Q31(-0.0121849995f),
+    Q31( 0.0132718220f), Q31( 0.0143904666f), Q31( 0.0155405553f), Q31( 0.0167324712f),
+    Q31( 0.0179433381f), Q31( 0.0191872431f), Q31( 0.0204531793f), Q31( 0.0217467550f),
+    Q31( 0.0230680169f), Q31( 0.0244160992f), Q31( 0.0257875847f), Q31( 0.0271859429f),
+    Q31( 0.0286072173f), Q31( 0.0300502657f), Q31( 0.0315017608f), Q31( 0.0329754081f),
+    Q31( 0.0344620948f), Q31( 0.0359697560f), Q31( 0.0374812850f), Q31( 0.0390053679f),
+    Q31( 0.0405349170f), Q31( 0.0420649094f), Q31( 0.0436097542f), Q31( 0.0451488405f),
+    Q31( 0.0466843027f), Q31( 0.0482165720f), Q31( 0.0497385755f), Q31( 0.0512556155f),
+    Q31( 0.0527630746f), Q31( 0.0542452768f), Q31( 0.0557173648f), Q31( 0.0571616450f),
+    Q31( 0.0585915683f), Q31( 0.0599837480f), Q31( 0.0613455171f), Q31( 0.0626857808f),
+    Q31( 0.0639715898f), Q31( 0.0652247106f), Q31( 0.0664367512f), Q31( 0.0676075985f),
+    Q31( 0.0687043828f), Q31( 0.0697630244f), Q31( 0.0707628710f), Q31( 0.0717002673f),
+    Q31( 0.0725682583f), Q31( 0.0733620255f), Q31( 0.0741003642f), Q31( 0.0747452558f),
+    Q31( 0.0753137336f), Q31( 0.0758008358f), Q31( 0.0761992479f), Q31( 0.0764992170f),
+    Q31( 0.0767093490f), Q31( 0.0768173975f), Q31( 0.0768230011f), Q31( 0.0767204924f),
+    Q31( 0.0765050718f), Q31( 0.0761748321f), Q31( 0.0757305756f), Q31( 0.0751576255f),
+    Q31( 0.0744664394f), Q31( 0.0736406005f), Q31( 0.0726774642f), Q31( 0.0715826364f),
+    Q31( 0.0703533073f), Q31( 0.0689664013f), Q31( 0.0674525021f), Q31( 0.0657690668f),
+    Q31( 0.0639444805f), Q31( 0.0619602779f), Q31( 0.0598166570f), Q31( 0.0575152691f),
+    Q31( 0.0550460034f), Q31( 0.0524093821f), Q31( 0.0495978676f), Q31( 0.0466303305f),
+    Q31( 0.0434768782f), Q31( 0.0401458278f), Q31( 0.0366418116f), Q31( 0.0329583930f),
+    Q31( 0.0290824006f), Q31( 0.0250307561f), Q31( 0.0207997072f), Q31( 0.0163701258f),
+    Q31( 0.0117623832f), Q31( 0.0069636862f), Q31( 0.0019765601f), Q31(-0.0032086896f),
+    Q31(-0.0085711749f), Q31(-0.0141288827f), Q31(-0.0198834129f), Q31(-0.0258227288f),
+    Q31(-0.0319531274f), Q31(-0.0382776572f), Q31(-0.0447806821f), Q31(-0.0514804176f),
+    Q31(-0.0583705326f), Q31(-0.0654409853f), Q31(-0.0726943300f), Q31(-0.0801372934f),
+    Q31(-0.0877547536f), Q31(-0.0955533352f), Q31(-0.1035329531f), Q31(-0.1116826931f),
+    Q31(-0.1200077984f), Q31(-0.1285002850f), Q31(-0.1371551761f), Q31(-0.1459766491f),
+    Q31(-0.1549607071f), Q31(-0.1640958855f), Q31(-0.1733808172f), Q31(-0.1828172548f),
+    Q31(-0.1923966745f), Q31(-0.2021250176f), Q31(-0.2119735853f), Q31(-0.2219652696f),
+    Q31(-0.2320690870f), Q31(-0.2423016884f), Q31(-0.2526480309f), Q31(-0.2631053299f),
+    Q31(-0.2736634040f), Q31(-0.2843214189f), Q31(-0.2950716717f), Q31(-0.3059098575f),
+    Q31(-0.3168278913f), Q31(-0.3278113727f), Q31(-0.3388722693f), Q31(-0.3499914122f),
+    Q31( 0.3611589903f), Q31( 0.3723795546f), Q31( 0.3836350013f), Q31( 0.3949211761f),
+    Q31( 0.4062317676f), Q31( 0.4175696896f), Q31( 0.4289119920f), Q31( 0.4402553754f),
+    Q31( 0.4515996535f), Q31( 0.4629308085f), Q31( 0.4742453214f), Q31( 0.4855253091f),
+    Q31( 0.4967708254f), Q31( 0.5079817500f), Q31( 0.5191234970f), Q31( 0.5302240895f),
+    Q31( 0.5412553448f), Q31( 0.5522051258f), Q31( 0.5630789140f), Q31( 0.5738524131f),
+    Q31( 0.5845403235f), Q31( 0.5951123086f), Q31( 0.6055783538f), Q31( 0.6159109932f),
+    Q31( 0.6261242695f), Q31( 0.6361980107f), Q31( 0.6461269695f), Q31( 0.6559016302f),
+    Q31( 0.6655139880f), Q31( 0.6749663190f), Q31( 0.6842353293f), Q31( 0.6933282376f),
+    Q31( 0.7022388719f), Q31( 0.7109410426f), Q31( 0.7194462634f), Q31( 0.7277448900f),
+    Q31( 0.7358211758f), Q31( 0.7436827863f), Q31( 0.7513137456f), Q31( 0.7587080760f),
+    Q31( 0.7658674865f), Q31( 0.7727780881f), Q31( 0.7794287519f), Q31( 0.7858353120f),
+    Q31( 0.7919735841f), Q31( 0.7978466413f), Q31( 0.8034485751f), Q31( 0.8087695004f),
+    Q31( 0.8138191270f), Q31( 0.8185776004f), Q31( 0.8230419890f), Q31( 0.8272275347f),
+    Q31( 0.8311038457f), Q31( 0.8346937361f), Q31( 0.8379717337f), Q31( 0.8409541392f),
+    Q31( 0.8436238281f), Q31( 0.8459818469f), Q31( 0.8480315777f), Q31( 0.8497805198f),
+    Q31( 0.8511971524f), Q31( 0.8523047035f), Q31( 0.8531020949f), Q31( 0.8535720573f),
+    Q31( 0.8537385600f),
+};
+
+#endif /* AVCODEC_AACSBR_TABLEGEN_COMMON_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_template.c
new file mode 100644
index 000000000..821615f2a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbr_template.c
@@ -0,0 +1,1583 @@
+/*
+ * AAC Spectral Band Replication decoding functions
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ * Copyright (c) 2009-2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * Fixed point code
+ * Copyright (c) 2013
+ *      MIPS Technologies, Inc., California.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC Spectral Band Replication decoding functions
+ * @author Robert Swain ( rob opendot cl )
+ * @author Stanislav Ocovaj ( stanislav.ocovaj@imgtec.com )
+ * @author Zoran Basaric ( zoran.basaric@imgtec.com )
+ */
+
+#include "libavutil/qsort.h"
+
+static av_cold void aacsbr_tableinit(void)
+{
+    int n;
+    for (n = 1; n < 320; n++)
+        sbr_qmf_window_us[320 + n] = sbr_qmf_window_us[320 - n];
+    sbr_qmf_window_us[384] = -sbr_qmf_window_us[384];
+    sbr_qmf_window_us[512] = -sbr_qmf_window_us[512];
+
+    for (n = 0; n < 320; n++)
+        sbr_qmf_window_ds[n] = sbr_qmf_window_us[2*n];
+}
+
+av_cold void AAC_RENAME(ff_aac_sbr_init)(void)
+{
+    static const struct {
+        const void *sbr_codes, *sbr_bits;
+        const unsigned int table_size, elem_size;
+    } sbr_tmp[] = {
+        SBR_VLC_ROW(t_huffman_env_1_5dB),
+        SBR_VLC_ROW(f_huffman_env_1_5dB),
+        SBR_VLC_ROW(t_huffman_env_bal_1_5dB),
+        SBR_VLC_ROW(f_huffman_env_bal_1_5dB),
+        SBR_VLC_ROW(t_huffman_env_3_0dB),
+        SBR_VLC_ROW(f_huffman_env_3_0dB),
+        SBR_VLC_ROW(t_huffman_env_bal_3_0dB),
+        SBR_VLC_ROW(f_huffman_env_bal_3_0dB),
+        SBR_VLC_ROW(t_huffman_noise_3_0dB),
+        SBR_VLC_ROW(t_huffman_noise_bal_3_0dB),
+    };
+
+    // SBR VLC table initialization
+    SBR_INIT_VLC_STATIC(0, 1098);
+    SBR_INIT_VLC_STATIC(1, 1092);
+    SBR_INIT_VLC_STATIC(2, 768);
+    SBR_INIT_VLC_STATIC(3, 1026);
+    SBR_INIT_VLC_STATIC(4, 1058);
+    SBR_INIT_VLC_STATIC(5, 1052);
+    SBR_INIT_VLC_STATIC(6, 544);
+    SBR_INIT_VLC_STATIC(7, 544);
+    SBR_INIT_VLC_STATIC(8, 592);
+    SBR_INIT_VLC_STATIC(9, 512);
+
+    aacsbr_tableinit();
+
+    AAC_RENAME(ff_ps_init)();
+}
+
+/** Places SBR in pure upsampling mode. */
+static void sbr_turnoff(SpectralBandReplication *sbr) {
+    sbr->start = 0;
+    sbr->ready_for_dequant = 0;
+    // Init defults used in pure upsampling mode
+    sbr->kx[1] = 32; //Typo in spec, kx' inits to 32
+    sbr->m[1] = 0;
+    // Reset values for first SBR header
+    sbr->data[0].e_a[1] = sbr->data[1].e_a[1] = -1;
+    memset(&sbr->spectrum_params, -1, sizeof(SpectrumParameters));
+}
+
+av_cold void AAC_RENAME(ff_aac_sbr_ctx_init)(AACContext *ac, SpectralBandReplication *sbr, int id_aac)
+{
+    if(sbr->mdct.mdct_bits)
+        return;
+    sbr->kx[0] = sbr->kx[1];
+    sbr->id_aac = id_aac;
+    sbr_turnoff(sbr);
+    sbr->data[0].synthesis_filterbank_samples_offset = SBR_SYNTHESIS_BUF_SIZE - (1280 - 128);
+    sbr->data[1].synthesis_filterbank_samples_offset = SBR_SYNTHESIS_BUF_SIZE - (1280 - 128);
+    /* SBR requires samples to be scaled to +/-32768.0 to work correctly.
+     * mdct scale factors are adjusted to scale up from +/-1.0 at analysis
+     * and scale back down at synthesis. */
+    AAC_RENAME_32(ff_mdct_init)(&sbr->mdct,     7, 1, 1.0 / (64 * 32768.0));
+    AAC_RENAME_32(ff_mdct_init)(&sbr->mdct_ana, 7, 1, -2.0 * 32768.0);
+    AAC_RENAME(ff_ps_ctx_init)(&sbr->ps);
+    AAC_RENAME(ff_sbrdsp_init)(&sbr->dsp);
+    aacsbr_func_ptr_init(&sbr->c);
+}
+
+av_cold void AAC_RENAME(ff_aac_sbr_ctx_close)(SpectralBandReplication *sbr)
+{
+    AAC_RENAME_32(ff_mdct_end)(&sbr->mdct);
+    AAC_RENAME_32(ff_mdct_end)(&sbr->mdct_ana);
+}
+
+static int qsort_comparison_function_int16(const void *a, const void *b)
+{
+    return *(const int16_t *)a - *(const int16_t *)b;
+}
+
+static inline int in_table_int16(const int16_t *table, int last_el, int16_t needle)
+{
+    int i;
+    for (i = 0; i <= last_el; i++)
+        if (table[i] == needle)
+            return 1;
+    return 0;
+}
+
+/// Limiter Frequency Band Table (14496-3 sp04 p198)
+static void sbr_make_f_tablelim(SpectralBandReplication *sbr)
+{
+    int k;
+    if (sbr->bs_limiter_bands > 0) {
+        static const INTFLOAT bands_warped[3] = { Q23(1.32715174233856803909f),   //2^(0.49/1.2)
+                                               Q23(1.18509277094158210129f),   //2^(0.49/2)
+                                               Q23(1.11987160404675912501f) }; //2^(0.49/3)
+        const INTFLOAT lim_bands_per_octave_warped = bands_warped[sbr->bs_limiter_bands - 1];
+        int16_t patch_borders[7];
+        uint16_t *in = sbr->f_tablelim + 1, *out = sbr->f_tablelim;
+
+        patch_borders[0] = sbr->kx[1];
+        for (k = 1; k <= sbr->num_patches; k++)
+            patch_borders[k] = patch_borders[k-1] + sbr->patch_num_subbands[k-1];
+
+        memcpy(sbr->f_tablelim, sbr->f_tablelow,
+               (sbr->n[0] + 1) * sizeof(sbr->f_tablelow[0]));
+        if (sbr->num_patches > 1)
+            memcpy(sbr->f_tablelim + sbr->n[0] + 1, patch_borders + 1,
+                   (sbr->num_patches - 1) * sizeof(patch_borders[0]));
+
+        AV_QSORT(sbr->f_tablelim, sbr->num_patches + sbr->n[0],
+              uint16_t,
+              qsort_comparison_function_int16);
+
+        sbr->n_lim = sbr->n[0] + sbr->num_patches - 1;
+        while (out < sbr->f_tablelim + sbr->n_lim) {
+#if USE_FIXED
+            if ((*in << 23) >= *out * lim_bands_per_octave_warped) {
+#else
+            if (*in >= *out * lim_bands_per_octave_warped) {
+#endif /* USE_FIXED */
+                *++out = *in++;
+            } else if (*in == *out ||
+                !in_table_int16(patch_borders, sbr->num_patches, *in)) {
+                in++;
+                sbr->n_lim--;
+            } else if (!in_table_int16(patch_borders, sbr->num_patches, *out)) {
+                *out = *in++;
+                sbr->n_lim--;
+            } else {
+                *++out = *in++;
+            }
+        }
+    } else {
+        sbr->f_tablelim[0] = sbr->f_tablelow[0];
+        sbr->f_tablelim[1] = sbr->f_tablelow[sbr->n[0]];
+        sbr->n_lim = 1;
+    }
+}
+
+static unsigned int read_sbr_header(SpectralBandReplication *sbr, GetBitContext *gb)
+{
+    unsigned int cnt = get_bits_count(gb);
+    uint8_t bs_header_extra_1;
+    uint8_t bs_header_extra_2;
+    int old_bs_limiter_bands = sbr->bs_limiter_bands;
+    SpectrumParameters old_spectrum_params;
+
+    sbr->start = 1;
+    sbr->ready_for_dequant = 0;
+
+    // Save last spectrum parameters variables to compare to new ones
+    memcpy(&old_spectrum_params, &sbr->spectrum_params, sizeof(SpectrumParameters));
+
+    sbr->bs_amp_res_header              = get_bits1(gb);
+    sbr->spectrum_params.bs_start_freq  = get_bits(gb, 4);
+    sbr->spectrum_params.bs_stop_freq   = get_bits(gb, 4);
+    sbr->spectrum_params.bs_xover_band  = get_bits(gb, 3);
+                                          skip_bits(gb, 2); // bs_reserved
+
+    bs_header_extra_1 = get_bits1(gb);
+    bs_header_extra_2 = get_bits1(gb);
+
+    if (bs_header_extra_1) {
+        sbr->spectrum_params.bs_freq_scale  = get_bits(gb, 2);
+        sbr->spectrum_params.bs_alter_scale = get_bits1(gb);
+        sbr->spectrum_params.bs_noise_bands = get_bits(gb, 2);
+    } else {
+        sbr->spectrum_params.bs_freq_scale  = 2;
+        sbr->spectrum_params.bs_alter_scale = 1;
+        sbr->spectrum_params.bs_noise_bands = 2;
+    }
+
+    // Check if spectrum parameters changed
+    if (memcmp(&old_spectrum_params, &sbr->spectrum_params, sizeof(SpectrumParameters)))
+        sbr->reset = 1;
+
+    if (bs_header_extra_2) {
+        sbr->bs_limiter_bands  = get_bits(gb, 2);
+        sbr->bs_limiter_gains  = get_bits(gb, 2);
+        sbr->bs_interpol_freq  = get_bits1(gb);
+        sbr->bs_smoothing_mode = get_bits1(gb);
+    } else {
+        sbr->bs_limiter_bands  = 2;
+        sbr->bs_limiter_gains  = 2;
+        sbr->bs_interpol_freq  = 1;
+        sbr->bs_smoothing_mode = 1;
+    }
+
+    if (sbr->bs_limiter_bands != old_bs_limiter_bands && !sbr->reset)
+        sbr_make_f_tablelim(sbr);
+
+    return get_bits_count(gb) - cnt;
+}
+
+static int array_min_int16(const int16_t *array, int nel)
+{
+    int i, min = array[0];
+    for (i = 1; i < nel; i++)
+        min = FFMIN(array[i], min);
+    return min;
+}
+
+static int check_n_master(AVCodecContext *avctx, int n_master, int bs_xover_band)
+{
+    // Requirements (14496-3 sp04 p205)
+    if (n_master <= 0) {
+        av_log(avctx, AV_LOG_ERROR, "Invalid n_master: %d\n", n_master);
+        return -1;
+    }
+    if (bs_xover_band >= n_master) {
+        av_log(avctx, AV_LOG_ERROR,
+               "Invalid bitstream, crossover band index beyond array bounds: %d\n",
+               bs_xover_band);
+        return -1;
+    }
+    return 0;
+}
+
+/// Master Frequency Band Table (14496-3 sp04 p194)
+static int sbr_make_f_master(AACContext *ac, SpectralBandReplication *sbr,
+                             SpectrumParameters *spectrum)
+{
+    unsigned int temp, max_qmf_subbands = 0;
+    unsigned int start_min, stop_min;
+    int k;
+    const int8_t *sbr_offset_ptr;
+    int16_t stop_dk[13];
+
+    switch (sbr->sample_rate) {
+    case 16000:
+        sbr_offset_ptr = sbr_offset[0];
+        break;
+    case 22050:
+        sbr_offset_ptr = sbr_offset[1];
+        break;
+    case 24000:
+        sbr_offset_ptr = sbr_offset[2];
+        break;
+    case 32000:
+        sbr_offset_ptr = sbr_offset[3];
+        break;
+    case 44100: case 48000: case 64000:
+        sbr_offset_ptr = sbr_offset[4];
+        break;
+    case 88200: case 96000: case 128000: case 176400: case 192000:
+        sbr_offset_ptr = sbr_offset[5];
+        break;
+    default:
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "Unsupported sample rate for SBR: %d\n", sbr->sample_rate);
+        return -1;
+    }
+
+    if (sbr->sample_rate < 32000) {
+        temp = 3000;
+    } else if (sbr->sample_rate < 64000) {
+        temp = 4000;
+    } else
+        temp = 5000;
+
+    start_min = ((temp << 7) + (sbr->sample_rate >> 1)) / sbr->sample_rate;
+    stop_min  = ((temp << 8) + (sbr->sample_rate >> 1)) / sbr->sample_rate;
+
+    sbr->k[0] = start_min + sbr_offset_ptr[spectrum->bs_start_freq];
+
+    if (spectrum->bs_stop_freq < 14) {
+        sbr->k[2] = stop_min;
+        make_bands(stop_dk, stop_min, 64, 13);
+        AV_QSORT(stop_dk, 13, int16_t, qsort_comparison_function_int16);
+        for (k = 0; k < spectrum->bs_stop_freq; k++)
+            sbr->k[2] += stop_dk[k];
+    } else if (spectrum->bs_stop_freq == 14) {
+        sbr->k[2] = 2*sbr->k[0];
+    } else if (spectrum->bs_stop_freq == 15) {
+        sbr->k[2] = 3*sbr->k[0];
+    } else {
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "Invalid bs_stop_freq: %d\n", spectrum->bs_stop_freq);
+        return -1;
+    }
+    sbr->k[2] = FFMIN(64, sbr->k[2]);
+
+    // Requirements (14496-3 sp04 p205)
+    if (sbr->sample_rate <= 32000) {
+        max_qmf_subbands = 48;
+    } else if (sbr->sample_rate == 44100) {
+        max_qmf_subbands = 35;
+    } else if (sbr->sample_rate >= 48000)
+        max_qmf_subbands = 32;
+    else
+        av_assert0(0);
+
+    if (sbr->k[2] - sbr->k[0] > max_qmf_subbands) {
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "Invalid bitstream, too many QMF subbands: %d\n", sbr->k[2] - sbr->k[0]);
+        return -1;
+    }
+
+    if (!spectrum->bs_freq_scale) {
+        int dk, k2diff;
+
+        dk = spectrum->bs_alter_scale + 1;
+        sbr->n_master = ((sbr->k[2] - sbr->k[0] + (dk&2)) >> dk) << 1;
+        if (check_n_master(ac->avctx, sbr->n_master, sbr->spectrum_params.bs_xover_band))
+            return -1;
+
+        for (k = 1; k <= sbr->n_master; k++)
+            sbr->f_master[k] = dk;
+
+        k2diff = sbr->k[2] - sbr->k[0] - sbr->n_master * dk;
+        if (k2diff < 0) {
+            sbr->f_master[1]--;
+            sbr->f_master[2]-= (k2diff < -1);
+        } else if (k2diff) {
+            sbr->f_master[sbr->n_master]++;
+        }
+
+        sbr->f_master[0] = sbr->k[0];
+        for (k = 1; k <= sbr->n_master; k++)
+            sbr->f_master[k] += sbr->f_master[k - 1];
+
+    } else {
+        int half_bands = 7 - spectrum->bs_freq_scale;      // bs_freq_scale  = {1,2,3}
+        int two_regions, num_bands_0;
+        int vdk0_max, vdk1_min;
+        int16_t vk0[49];
+#if USE_FIXED
+        int tmp, nz = 0;
+#endif /* USE_FIXED */
+
+        if (49 * sbr->k[2] > 110 * sbr->k[0]) {
+            two_regions = 1;
+            sbr->k[1] = 2 * sbr->k[0];
+        } else {
+            two_regions = 0;
+            sbr->k[1] = sbr->k[2];
+        }
+
+#if USE_FIXED
+        tmp = (sbr->k[1] << 23) / sbr->k[0];
+        while (tmp < 0x40000000) {
+          tmp <<= 1;
+          nz++;
+        }
+        tmp = fixed_log(tmp - 0x80000000);
+        tmp = (int)(((int64_t)tmp * CONST_RECIP_LN2 + 0x20000000) >> 30);
+        tmp = (((tmp + 0x80) >> 8) + ((8 - nz) << 23)) * half_bands;
+        num_bands_0 = ((tmp + 0x400000) >> 23) * 2;
+#else
+        num_bands_0 = lrintf(half_bands * log2f(sbr->k[1] / (float)sbr->k[0])) * 2;
+#endif /* USE_FIXED */
+
+        if (num_bands_0 <= 0) { // Requirements (14496-3 sp04 p205)
+            av_log(ac->avctx, AV_LOG_ERROR, "Invalid num_bands_0: %d\n", num_bands_0);
+            return -1;
+        }
+
+        vk0[0] = 0;
+
+        make_bands(vk0+1, sbr->k[0], sbr->k[1], num_bands_0);
+
+        AV_QSORT(vk0 + 1, num_bands_0, int16_t, qsort_comparison_function_int16);
+        vdk0_max = vk0[num_bands_0];
+
+        vk0[0] = sbr->k[0];
+        for (k = 1; k <= num_bands_0; k++) {
+            if (vk0[k] <= 0) { // Requirements (14496-3 sp04 p205)
+                av_log(ac->avctx, AV_LOG_ERROR, "Invalid vDk0[%d]: %d\n", k, vk0[k]);
+                return -1;
+            }
+            vk0[k] += vk0[k-1];
+        }
+
+        if (two_regions) {
+            int16_t vk1[49];
+#if USE_FIXED
+            int num_bands_1;
+
+            tmp = (sbr->k[2] << 23) / sbr->k[1];
+            nz = 0;
+            while (tmp < 0x40000000) {
+              tmp <<= 1;
+              nz++;
+            }
+            tmp = fixed_log(tmp - 0x80000000);
+            tmp = (int)(((int64_t)tmp * CONST_RECIP_LN2 + 0x20000000) >> 30);
+            tmp = (((tmp + 0x80) >> 8) + ((8 - nz) << 23)) * half_bands;
+            if (spectrum->bs_alter_scale)
+                tmp = (int)(((int64_t)tmp * CONST_076923 + 0x40000000) >> 31);
+            num_bands_1 = ((tmp + 0x400000) >> 23) * 2;
+#else
+            float invwarp = spectrum->bs_alter_scale ? 0.76923076923076923077f
+                                                     : 1.0f; // bs_alter_scale = {0,1}
+            int num_bands_1 = lrintf(half_bands * invwarp *
+                                     log2f(sbr->k[2] / (float)sbr->k[1])) * 2;
+#endif /* USE_FIXED */
+            make_bands(vk1+1, sbr->k[1], sbr->k[2], num_bands_1);
+
+            vdk1_min = array_min_int16(vk1 + 1, num_bands_1);
+
+            if (vdk1_min < vdk0_max) {
+                int change;
+                AV_QSORT(vk1 + 1, num_bands_1, int16_t, qsort_comparison_function_int16);
+                change = FFMIN(vdk0_max - vk1[1], (vk1[num_bands_1] - vk1[1]) >> 1);
+                vk1[1]           += change;
+                vk1[num_bands_1] -= change;
+            }
+
+            AV_QSORT(vk1 + 1, num_bands_1, int16_t, qsort_comparison_function_int16);
+
+            vk1[0] = sbr->k[1];
+            for (k = 1; k <= num_bands_1; k++) {
+                if (vk1[k] <= 0) { // Requirements (14496-3 sp04 p205)
+                    av_log(ac->avctx, AV_LOG_ERROR, "Invalid vDk1[%d]: %d\n", k, vk1[k]);
+                    return -1;
+                }
+                vk1[k] += vk1[k-1];
+            }
+
+            sbr->n_master = num_bands_0 + num_bands_1;
+            if (check_n_master(ac->avctx, sbr->n_master, sbr->spectrum_params.bs_xover_band))
+                return -1;
+            memcpy(&sbr->f_master[0],               vk0,
+                   (num_bands_0 + 1) * sizeof(sbr->f_master[0]));
+            memcpy(&sbr->f_master[num_bands_0 + 1], vk1 + 1,
+                    num_bands_1      * sizeof(sbr->f_master[0]));
+
+        } else {
+            sbr->n_master = num_bands_0;
+            if (check_n_master(ac->avctx, sbr->n_master, sbr->spectrum_params.bs_xover_band))
+                return -1;
+            memcpy(sbr->f_master, vk0, (num_bands_0 + 1) * sizeof(sbr->f_master[0]));
+        }
+    }
+
+    return 0;
+}
+
+/// High Frequency Generation - Patch Construction (14496-3 sp04 p216 fig. 4.46)
+static int sbr_hf_calc_npatches(AACContext *ac, SpectralBandReplication *sbr)
+{
+    int i, k, last_k = -1, last_msb = -1, sb = 0;
+    int msb = sbr->k[0];
+    int usb = sbr->kx[1];
+    int goal_sb = ((1000 << 11) + (sbr->sample_rate >> 1)) / sbr->sample_rate;
+
+    sbr->num_patches = 0;
+
+    if (goal_sb < sbr->kx[1] + sbr->m[1]) {
+        for (k = 0; sbr->f_master[k] < goal_sb; k++) ;
+    } else
+        k = sbr->n_master;
+
+    do {
+        int odd = 0;
+        if (k == last_k && msb == last_msb) {
+            av_log(ac->avctx, AV_LOG_ERROR, "patch construction failed\n");
+            return AVERROR_INVALIDDATA;
+        }
+        last_k = k;
+        last_msb = msb;
+        for (i = k; i == k || sb > (sbr->k[0] - 1 + msb - odd); i--) {
+            sb = sbr->f_master[i];
+            odd = (sb + sbr->k[0]) & 1;
+        }
+
+        // Requirements (14496-3 sp04 p205) sets the maximum number of patches to 5.
+        // After this check the final number of patches can still be six which is
+        // illegal however the Coding Technologies decoder check stream has a final
+        // count of 6 patches
+        if (sbr->num_patches > 5) {
+            av_log(ac->avctx, AV_LOG_ERROR, "Too many patches: %d\n", sbr->num_patches);
+            return -1;
+        }
+
+        sbr->patch_num_subbands[sbr->num_patches]  = FFMAX(sb - usb, 0);
+        sbr->patch_start_subband[sbr->num_patches] = sbr->k[0] - odd - sbr->patch_num_subbands[sbr->num_patches];
+
+        if (sbr->patch_num_subbands[sbr->num_patches] > 0) {
+            usb = sb;
+            msb = sb;
+            sbr->num_patches++;
+        } else
+            msb = sbr->kx[1];
+
+        if (sbr->f_master[k] - sb < 3)
+            k = sbr->n_master;
+    } while (sb != sbr->kx[1] + sbr->m[1]);
+
+    if (sbr->num_patches > 1 &&
+        sbr->patch_num_subbands[sbr->num_patches - 1] < 3)
+        sbr->num_patches--;
+
+    return 0;
+}
+
+/// Derived Frequency Band Tables (14496-3 sp04 p197)
+static int sbr_make_f_derived(AACContext *ac, SpectralBandReplication *sbr)
+{
+    int k, temp;
+#if USE_FIXED
+    int nz = 0;
+#endif /* USE_FIXED */
+
+    sbr->n[1] = sbr->n_master - sbr->spectrum_params.bs_xover_band;
+    sbr->n[0] = (sbr->n[1] + 1) >> 1;
+
+    memcpy(sbr->f_tablehigh, &sbr->f_master[sbr->spectrum_params.bs_xover_band],
+           (sbr->n[1] + 1) * sizeof(sbr->f_master[0]));
+    sbr->m[1] = sbr->f_tablehigh[sbr->n[1]] - sbr->f_tablehigh[0];
+    sbr->kx[1] = sbr->f_tablehigh[0];
+
+    // Requirements (14496-3 sp04 p205)
+    if (sbr->kx[1] + sbr->m[1] > 64) {
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "Stop frequency border too high: %d\n", sbr->kx[1] + sbr->m[1]);
+        return -1;
+    }
+    if (sbr->kx[1] > 32) {
+        av_log(ac->avctx, AV_LOG_ERROR, "Start frequency border too high: %d\n", sbr->kx[1]);
+        return -1;
+    }
+
+    sbr->f_tablelow[0] = sbr->f_tablehigh[0];
+    temp = sbr->n[1] & 1;
+    for (k = 1; k <= sbr->n[0]; k++)
+        sbr->f_tablelow[k] = sbr->f_tablehigh[2 * k - temp];
+#if USE_FIXED
+    temp = (sbr->k[2] << 23) / sbr->kx[1];
+    while (temp < 0x40000000) {
+        temp <<= 1;
+        nz++;
+    }
+    temp = fixed_log(temp - 0x80000000);
+    temp = (int)(((int64_t)temp * CONST_RECIP_LN2 + 0x20000000) >> 30);
+    temp = (((temp + 0x80) >> 8) + ((8 - nz) << 23)) * sbr->spectrum_params.bs_noise_bands;
+
+    sbr->n_q = (temp + 0x400000) >> 23;
+    if (sbr->n_q < 1)
+        sbr->n_q = 1;
+#else
+    sbr->n_q = FFMAX(1, lrintf(sbr->spectrum_params.bs_noise_bands *
+                               log2f(sbr->k[2] / (float)sbr->kx[1]))); // 0 <= bs_noise_bands <= 3
+#endif /* USE_FIXED */
+
+    if (sbr->n_q > 5) {
+        av_log(ac->avctx, AV_LOG_ERROR, "Too many noise floor scale factors: %d\n", sbr->n_q);
+        return -1;
+    }
+
+    sbr->f_tablenoise[0] = sbr->f_tablelow[0];
+    temp = 0;
+    for (k = 1; k <= sbr->n_q; k++) {
+        temp += (sbr->n[0] - temp) / (sbr->n_q + 1 - k);
+        sbr->f_tablenoise[k] = sbr->f_tablelow[temp];
+    }
+
+    if (sbr_hf_calc_npatches(ac, sbr) < 0)
+        return -1;
+
+    sbr_make_f_tablelim(sbr);
+
+    sbr->data[0].f_indexnoise = 0;
+    sbr->data[1].f_indexnoise = 0;
+
+    return 0;
+}
+
+static av_always_inline void get_bits1_vector(GetBitContext *gb, uint8_t *vec,
+                                              int elements)
+{
+    int i;
+    for (i = 0; i < elements; i++) {
+        vec[i] = get_bits1(gb);
+    }
+}
+
+/** ceil(log2(index+1)) */
+static const int8_t ceil_log2[] = {
+    0, 1, 2, 2, 3, 3,
+};
+
+static int read_sbr_grid(AACContext *ac, SpectralBandReplication *sbr,
+                         GetBitContext *gb, SBRData *ch_data)
+{
+    int i;
+    int bs_pointer = 0;
+    // frameLengthFlag ? 15 : 16; 960 sample length frames unsupported; this value is numTimeSlots
+    int abs_bord_trail = 16;
+    int num_rel_lead, num_rel_trail;
+    unsigned bs_num_env_old = ch_data->bs_num_env;
+    int bs_frame_class, bs_num_env;
+
+    ch_data->bs_freq_res[0] = ch_data->bs_freq_res[ch_data->bs_num_env];
+    ch_data->bs_amp_res = sbr->bs_amp_res_header;
+    ch_data->t_env_num_env_old = ch_data->t_env[bs_num_env_old];
+
+    switch (bs_frame_class = get_bits(gb, 2)) {
+    case FIXFIX:
+        bs_num_env = 1 << get_bits(gb, 2);
+        if (bs_num_env > 4) {
+            av_log(ac->avctx, AV_LOG_ERROR,
+                   "Invalid bitstream, too many SBR envelopes in FIXFIX type SBR frame: %d\n",
+                   bs_num_env);
+            return -1;
+        }
+        ch_data->bs_num_env = bs_num_env;
+        num_rel_lead                        = ch_data->bs_num_env - 1;
+        if (ch_data->bs_num_env == 1)
+            ch_data->bs_amp_res = 0;
+
+
+        ch_data->t_env[0]                   = 0;
+        ch_data->t_env[ch_data->bs_num_env] = abs_bord_trail;
+
+        abs_bord_trail = (abs_bord_trail + (ch_data->bs_num_env >> 1)) /
+                   ch_data->bs_num_env;
+        for (i = 0; i < num_rel_lead; i++)
+            ch_data->t_env[i + 1] = ch_data->t_env[i] + abs_bord_trail;
+
+        ch_data->bs_freq_res[1] = get_bits1(gb);
+        for (i = 1; i < ch_data->bs_num_env; i++)
+            ch_data->bs_freq_res[i + 1] = ch_data->bs_freq_res[1];
+        break;
+    case FIXVAR:
+        abs_bord_trail                     += get_bits(gb, 2);
+        num_rel_trail                       = get_bits(gb, 2);
+        ch_data->bs_num_env                 = num_rel_trail + 1;
+        ch_data->t_env[0]                   = 0;
+        ch_data->t_env[ch_data->bs_num_env] = abs_bord_trail;
+
+        for (i = 0; i < num_rel_trail; i++)
+            ch_data->t_env[ch_data->bs_num_env - 1 - i] =
+                ch_data->t_env[ch_data->bs_num_env - i] - 2 * get_bits(gb, 2) - 2;
+
+        bs_pointer = get_bits(gb, ceil_log2[ch_data->bs_num_env]);
+
+        for (i = 0; i < ch_data->bs_num_env; i++)
+            ch_data->bs_freq_res[ch_data->bs_num_env - i] = get_bits1(gb);
+        break;
+    case VARFIX:
+        ch_data->t_env[0]                   = get_bits(gb, 2);
+        num_rel_lead                        = get_bits(gb, 2);
+        ch_data->bs_num_env                 = num_rel_lead + 1;
+        ch_data->t_env[ch_data->bs_num_env] = abs_bord_trail;
+
+        for (i = 0; i < num_rel_lead; i++)
+            ch_data->t_env[i + 1] = ch_data->t_env[i] + 2 * get_bits(gb, 2) + 2;
+
+        bs_pointer = get_bits(gb, ceil_log2[ch_data->bs_num_env]);
+
+        get_bits1_vector(gb, ch_data->bs_freq_res + 1, ch_data->bs_num_env);
+        break;
+    case VARVAR:
+        ch_data->t_env[0]                   = get_bits(gb, 2);
+        abs_bord_trail                     += get_bits(gb, 2);
+        num_rel_lead                        = get_bits(gb, 2);
+        num_rel_trail                       = get_bits(gb, 2);
+        bs_num_env                          = num_rel_lead + num_rel_trail + 1;
+
+        if (bs_num_env > 5) {
+            av_log(ac->avctx, AV_LOG_ERROR,
+                   "Invalid bitstream, too many SBR envelopes in VARVAR type SBR frame: %d\n",
+                   bs_num_env);
+            return -1;
+        }
+        ch_data->bs_num_env = bs_num_env;
+
+        ch_data->t_env[ch_data->bs_num_env] = abs_bord_trail;
+
+        for (i = 0; i < num_rel_lead; i++)
+            ch_data->t_env[i + 1] = ch_data->t_env[i] + 2 * get_bits(gb, 2) + 2;
+        for (i = 0; i < num_rel_trail; i++)
+            ch_data->t_env[ch_data->bs_num_env - 1 - i] =
+                ch_data->t_env[ch_data->bs_num_env - i] - 2 * get_bits(gb, 2) - 2;
+
+        bs_pointer = get_bits(gb, ceil_log2[ch_data->bs_num_env]);
+
+        get_bits1_vector(gb, ch_data->bs_freq_res + 1, ch_data->bs_num_env);
+        break;
+    }
+    ch_data->bs_frame_class = bs_frame_class;
+
+    av_assert0(bs_pointer >= 0);
+    if (bs_pointer > ch_data->bs_num_env + 1) {
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "Invalid bitstream, bs_pointer points to a middle noise border outside the time borders table: %d\n",
+               bs_pointer);
+        return -1;
+    }
+
+    for (i = 1; i <= ch_data->bs_num_env; i++) {
+        if (ch_data->t_env[i-1] >= ch_data->t_env[i]) {
+            av_log(ac->avctx, AV_LOG_ERROR, "Not strictly monotone time borders\n");
+            return -1;
+        }
+    }
+
+    ch_data->bs_num_noise = (ch_data->bs_num_env > 1) + 1;
+
+    ch_data->t_q[0]                     = ch_data->t_env[0];
+    ch_data->t_q[ch_data->bs_num_noise] = ch_data->t_env[ch_data->bs_num_env];
+    if (ch_data->bs_num_noise > 1) {
+        int idx;
+        if (ch_data->bs_frame_class == FIXFIX) {
+            idx = ch_data->bs_num_env >> 1;
+        } else if (ch_data->bs_frame_class & 1) { // FIXVAR or VARVAR
+            idx = ch_data->bs_num_env - FFMAX(bs_pointer - 1, 1);
+        } else { // VARFIX
+            if (!bs_pointer)
+                idx = 1;
+            else if (bs_pointer == 1)
+                idx = ch_data->bs_num_env - 1;
+            else // bs_pointer > 1
+                idx = bs_pointer - 1;
+        }
+        ch_data->t_q[1] = ch_data->t_env[idx];
+    }
+
+    ch_data->e_a[0] = -(ch_data->e_a[1] != bs_num_env_old); // l_APrev
+    ch_data->e_a[1] = -1;
+    if ((ch_data->bs_frame_class & 1) && bs_pointer) { // FIXVAR or VARVAR and bs_pointer != 0
+        ch_data->e_a[1] = ch_data->bs_num_env + 1 - bs_pointer;
+    } else if ((ch_data->bs_frame_class == 2) && (bs_pointer > 1)) // VARFIX and bs_pointer > 1
+        ch_data->e_a[1] = bs_pointer - 1;
+
+    return 0;
+}
+
+static void copy_sbr_grid(SBRData *dst, const SBRData *src) {
+    //These variables are saved from the previous frame rather than copied
+    dst->bs_freq_res[0]    = dst->bs_freq_res[dst->bs_num_env];
+    dst->t_env_num_env_old = dst->t_env[dst->bs_num_env];
+    dst->e_a[0]            = -(dst->e_a[1] != dst->bs_num_env);
+
+    //These variables are read from the bitstream and therefore copied
+    memcpy(dst->bs_freq_res+1, src->bs_freq_res+1, sizeof(dst->bs_freq_res)-sizeof(*dst->bs_freq_res));
+    memcpy(dst->t_env,         src->t_env,         sizeof(dst->t_env));
+    memcpy(dst->t_q,           src->t_q,           sizeof(dst->t_q));
+    dst->bs_num_env        = src->bs_num_env;
+    dst->bs_amp_res        = src->bs_amp_res;
+    dst->bs_num_noise      = src->bs_num_noise;
+    dst->bs_frame_class    = src->bs_frame_class;
+    dst->e_a[1]            = src->e_a[1];
+}
+
+/// Read how the envelope and noise floor data is delta coded
+static void read_sbr_dtdf(SpectralBandReplication *sbr, GetBitContext *gb,
+                          SBRData *ch_data)
+{
+    get_bits1_vector(gb, ch_data->bs_df_env,   ch_data->bs_num_env);
+    get_bits1_vector(gb, ch_data->bs_df_noise, ch_data->bs_num_noise);
+}
+
+/// Read inverse filtering data
+static void read_sbr_invf(SpectralBandReplication *sbr, GetBitContext *gb,
+                          SBRData *ch_data)
+{
+    int i;
+
+    memcpy(ch_data->bs_invf_mode[1], ch_data->bs_invf_mode[0], 5 * sizeof(uint8_t));
+    for (i = 0; i < sbr->n_q; i++)
+        ch_data->bs_invf_mode[0][i] = get_bits(gb, 2);
+}
+
+static int read_sbr_envelope(AACContext *ac, SpectralBandReplication *sbr, GetBitContext *gb,
+                              SBRData *ch_data, int ch)
+{
+    int bits;
+    int i, j, k;
+    VLC_TYPE (*t_huff)[2], (*f_huff)[2];
+    int t_lav, f_lav;
+    const int delta = (ch == 1 && sbr->bs_coupling == 1) + 1;
+    const int odd = sbr->n[1] & 1;
+
+    if (sbr->bs_coupling && ch) {
+        if (ch_data->bs_amp_res) {
+            bits   = 5;
+            t_huff = vlc_sbr[T_HUFFMAN_ENV_BAL_3_0DB].table;
+            t_lav  = vlc_sbr_lav[T_HUFFMAN_ENV_BAL_3_0DB];
+            f_huff = vlc_sbr[F_HUFFMAN_ENV_BAL_3_0DB].table;
+            f_lav  = vlc_sbr_lav[F_HUFFMAN_ENV_BAL_3_0DB];
+        } else {
+            bits   = 6;
+            t_huff = vlc_sbr[T_HUFFMAN_ENV_BAL_1_5DB].table;
+            t_lav  = vlc_sbr_lav[T_HUFFMAN_ENV_BAL_1_5DB];
+            f_huff = vlc_sbr[F_HUFFMAN_ENV_BAL_1_5DB].table;
+            f_lav  = vlc_sbr_lav[F_HUFFMAN_ENV_BAL_1_5DB];
+        }
+    } else {
+        if (ch_data->bs_amp_res) {
+            bits   = 6;
+            t_huff = vlc_sbr[T_HUFFMAN_ENV_3_0DB].table;
+            t_lav  = vlc_sbr_lav[T_HUFFMAN_ENV_3_0DB];
+            f_huff = vlc_sbr[F_HUFFMAN_ENV_3_0DB].table;
+            f_lav  = vlc_sbr_lav[F_HUFFMAN_ENV_3_0DB];
+        } else {
+            bits   = 7;
+            t_huff = vlc_sbr[T_HUFFMAN_ENV_1_5DB].table;
+            t_lav  = vlc_sbr_lav[T_HUFFMAN_ENV_1_5DB];
+            f_huff = vlc_sbr[F_HUFFMAN_ENV_1_5DB].table;
+            f_lav  = vlc_sbr_lav[F_HUFFMAN_ENV_1_5DB];
+        }
+    }
+
+    for (i = 0; i < ch_data->bs_num_env; i++) {
+        if (ch_data->bs_df_env[i]) {
+            // bs_freq_res[0] == bs_freq_res[bs_num_env] from prev frame
+            if (ch_data->bs_freq_res[i + 1] == ch_data->bs_freq_res[i]) {
+                for (j = 0; j < sbr->n[ch_data->bs_freq_res[i + 1]]; j++) {
+                    ch_data->env_facs_q[i + 1][j] = ch_data->env_facs_q[i][j] + delta * (get_vlc2(gb, t_huff, 9, 3) - t_lav);
+                    if (ch_data->env_facs_q[i + 1][j] > 127U) {
+                        av_log(ac->avctx, AV_LOG_ERROR, "env_facs_q %d is invalid\n", ch_data->env_facs_q[i + 1][j]);
+                        return AVERROR_INVALIDDATA;
+                    }
+                }
+            } else if (ch_data->bs_freq_res[i + 1]) {
+                for (j = 0; j < sbr->n[ch_data->bs_freq_res[i + 1]]; j++) {
+                    k = (j + odd) >> 1; // find k such that f_tablelow[k] <= f_tablehigh[j] < f_tablelow[k + 1]
+                    ch_data->env_facs_q[i + 1][j] = ch_data->env_facs_q[i][k] + delta * (get_vlc2(gb, t_huff, 9, 3) - t_lav);
+                    if (ch_data->env_facs_q[i + 1][j] > 127U) {
+                        av_log(ac->avctx, AV_LOG_ERROR, "env_facs_q %d is invalid\n", ch_data->env_facs_q[i + 1][j]);
+                        return AVERROR_INVALIDDATA;
+                    }
+                }
+            } else {
+                for (j = 0; j < sbr->n[ch_data->bs_freq_res[i + 1]]; j++) {
+                    k = j ? 2*j - odd : 0; // find k such that f_tablehigh[k] == f_tablelow[j]
+                    ch_data->env_facs_q[i + 1][j] = ch_data->env_facs_q[i][k] + delta * (get_vlc2(gb, t_huff, 9, 3) - t_lav);
+                    if (ch_data->env_facs_q[i + 1][j] > 127U) {
+                        av_log(ac->avctx, AV_LOG_ERROR, "env_facs_q %d is invalid\n", ch_data->env_facs_q[i + 1][j]);
+                        return AVERROR_INVALIDDATA;
+                    }
+                }
+            }
+        } else {
+            ch_data->env_facs_q[i + 1][0] = delta * get_bits(gb, bits); // bs_env_start_value_balance
+            for (j = 1; j < sbr->n[ch_data->bs_freq_res[i + 1]]; j++) {
+                ch_data->env_facs_q[i + 1][j] = ch_data->env_facs_q[i + 1][j - 1] + delta * (get_vlc2(gb, f_huff, 9, 3) - f_lav);
+                if (ch_data->env_facs_q[i + 1][j] > 127U) {
+                    av_log(ac->avctx, AV_LOG_ERROR, "env_facs_q %d is invalid\n", ch_data->env_facs_q[i + 1][j]);
+                    return AVERROR_INVALIDDATA;
+                }
+            }
+        }
+    }
+
+    //assign 0th elements of env_facs_q from last elements
+    memcpy(ch_data->env_facs_q[0], ch_data->env_facs_q[ch_data->bs_num_env],
+           sizeof(ch_data->env_facs_q[0]));
+
+    return 0;
+}
+
+static int read_sbr_noise(AACContext *ac, SpectralBandReplication *sbr, GetBitContext *gb,
+                           SBRData *ch_data, int ch)
+{
+    int i, j;
+    VLC_TYPE (*t_huff)[2], (*f_huff)[2];
+    int t_lav, f_lav;
+    int delta = (ch == 1 && sbr->bs_coupling == 1) + 1;
+
+    if (sbr->bs_coupling && ch) {
+        t_huff = vlc_sbr[T_HUFFMAN_NOISE_BAL_3_0DB].table;
+        t_lav  = vlc_sbr_lav[T_HUFFMAN_NOISE_BAL_3_0DB];
+        f_huff = vlc_sbr[F_HUFFMAN_ENV_BAL_3_0DB].table;
+        f_lav  = vlc_sbr_lav[F_HUFFMAN_ENV_BAL_3_0DB];
+    } else {
+        t_huff = vlc_sbr[T_HUFFMAN_NOISE_3_0DB].table;
+        t_lav  = vlc_sbr_lav[T_HUFFMAN_NOISE_3_0DB];
+        f_huff = vlc_sbr[F_HUFFMAN_ENV_3_0DB].table;
+        f_lav  = vlc_sbr_lav[F_HUFFMAN_ENV_3_0DB];
+    }
+
+    for (i = 0; i < ch_data->bs_num_noise; i++) {
+        if (ch_data->bs_df_noise[i]) {
+            for (j = 0; j < sbr->n_q; j++) {
+                ch_data->noise_facs_q[i + 1][j] = ch_data->noise_facs_q[i][j] + delta * (get_vlc2(gb, t_huff, 9, 2) - t_lav);
+                if (ch_data->noise_facs_q[i + 1][j] > 30U) {
+                    av_log(ac->avctx, AV_LOG_ERROR, "noise_facs_q %d is invalid\n", ch_data->noise_facs_q[i + 1][j]);
+                    return AVERROR_INVALIDDATA;
+                }
+            }
+        } else {
+            ch_data->noise_facs_q[i + 1][0] = delta * get_bits(gb, 5); // bs_noise_start_value_balance or bs_noise_start_value_level
+            for (j = 1; j < sbr->n_q; j++) {
+                ch_data->noise_facs_q[i + 1][j] = ch_data->noise_facs_q[i + 1][j - 1] + delta * (get_vlc2(gb, f_huff, 9, 3) - f_lav);
+                if (ch_data->noise_facs_q[i + 1][j] > 30U) {
+                    av_log(ac->avctx, AV_LOG_ERROR, "noise_facs_q %d is invalid\n", ch_data->noise_facs_q[i + 1][j]);
+                    return AVERROR_INVALIDDATA;
+                }
+            }
+        }
+    }
+
+    //assign 0th elements of noise_facs_q from last elements
+    memcpy(ch_data->noise_facs_q[0], ch_data->noise_facs_q[ch_data->bs_num_noise],
+           sizeof(ch_data->noise_facs_q[0]));
+    return 0;
+}
+
+static void read_sbr_extension(AACContext *ac, SpectralBandReplication *sbr,
+                               GetBitContext *gb,
+                               int bs_extension_id, int *num_bits_left)
+{
+    switch (bs_extension_id) {
+    case EXTENSION_ID_PS:
+        if (!ac->oc[1].m4ac.ps) {
+            av_log(ac->avctx, AV_LOG_ERROR, "Parametric Stereo signaled to be not-present but was found in the bitstream.\n");
+            skip_bits_long(gb, *num_bits_left); // bs_fill_bits
+            *num_bits_left = 0;
+        } else {
+            *num_bits_left -= AAC_RENAME(ff_ps_read_data)(ac->avctx, gb, &sbr->ps, *num_bits_left);
+            ac->avctx->profile = FF_PROFILE_AAC_HE_V2;
+        }
+        break;
+    default:
+        // some files contain 0-padding
+        if (bs_extension_id || *num_bits_left > 16 || show_bits(gb, *num_bits_left))
+            avpriv_request_sample(ac->avctx, "Reserved SBR extensions");
+        skip_bits_long(gb, *num_bits_left); // bs_fill_bits
+        *num_bits_left = 0;
+        break;
+    }
+}
+
+static int read_sbr_single_channel_element(AACContext *ac,
+                                            SpectralBandReplication *sbr,
+                                            GetBitContext *gb)
+{
+    int ret;
+
+    if (get_bits1(gb)) // bs_data_extra
+        skip_bits(gb, 4); // bs_reserved
+
+    if (read_sbr_grid(ac, sbr, gb, &sbr->data[0]))
+        return -1;
+    read_sbr_dtdf(sbr, gb, &sbr->data[0]);
+    read_sbr_invf(sbr, gb, &sbr->data[0]);
+    if((ret = read_sbr_envelope(ac, sbr, gb, &sbr->data[0], 0)) < 0)
+        return ret;
+    if((ret = read_sbr_noise(ac, sbr, gb, &sbr->data[0], 0)) < 0)
+        return ret;
+
+    if ((sbr->data[0].bs_add_harmonic_flag = get_bits1(gb)))
+        get_bits1_vector(gb, sbr->data[0].bs_add_harmonic, sbr->n[1]);
+
+    return 0;
+}
+
+static int read_sbr_channel_pair_element(AACContext *ac,
+                                          SpectralBandReplication *sbr,
+                                          GetBitContext *gb)
+{
+    int ret;
+
+    if (get_bits1(gb))    // bs_data_extra
+        skip_bits(gb, 8); // bs_reserved
+
+    if ((sbr->bs_coupling = get_bits1(gb))) {
+        if (read_sbr_grid(ac, sbr, gb, &sbr->data[0]))
+            return -1;
+        copy_sbr_grid(&sbr->data[1], &sbr->data[0]);
+        read_sbr_dtdf(sbr, gb, &sbr->data[0]);
+        read_sbr_dtdf(sbr, gb, &sbr->data[1]);
+        read_sbr_invf(sbr, gb, &sbr->data[0]);
+        memcpy(sbr->data[1].bs_invf_mode[1], sbr->data[1].bs_invf_mode[0], sizeof(sbr->data[1].bs_invf_mode[0]));
+        memcpy(sbr->data[1].bs_invf_mode[0], sbr->data[0].bs_invf_mode[0], sizeof(sbr->data[1].bs_invf_mode[0]));
+        if((ret = read_sbr_envelope(ac, sbr, gb, &sbr->data[0], 0)) < 0)
+            return ret;
+        if((ret = read_sbr_noise(ac, sbr, gb, &sbr->data[0], 0)) < 0)
+            return ret;
+        if((ret = read_sbr_envelope(ac, sbr, gb, &sbr->data[1], 1)) < 0)
+            return ret;
+        if((ret = read_sbr_noise(ac, sbr, gb, &sbr->data[1], 1)) < 0)
+            return ret;
+    } else {
+        if (read_sbr_grid(ac, sbr, gb, &sbr->data[0]) ||
+            read_sbr_grid(ac, sbr, gb, &sbr->data[1]))
+            return -1;
+        read_sbr_dtdf(sbr, gb, &sbr->data[0]);
+        read_sbr_dtdf(sbr, gb, &sbr->data[1]);
+        read_sbr_invf(sbr, gb, &sbr->data[0]);
+        read_sbr_invf(sbr, gb, &sbr->data[1]);
+        if((ret = read_sbr_envelope(ac, sbr, gb, &sbr->data[0], 0)) < 0)
+            return ret;
+        if((ret = read_sbr_envelope(ac, sbr, gb, &sbr->data[1], 1)) < 0)
+            return ret;
+        if((ret = read_sbr_noise(ac, sbr, gb, &sbr->data[0], 0)) < 0)
+            return ret;
+        if((ret = read_sbr_noise(ac, sbr, gb, &sbr->data[1], 1)) < 0)
+            return ret;
+    }
+
+    if ((sbr->data[0].bs_add_harmonic_flag = get_bits1(gb)))
+        get_bits1_vector(gb, sbr->data[0].bs_add_harmonic, sbr->n[1]);
+    if ((sbr->data[1].bs_add_harmonic_flag = get_bits1(gb)))
+        get_bits1_vector(gb, sbr->data[1].bs_add_harmonic, sbr->n[1]);
+
+    return 0;
+}
+
+static unsigned int read_sbr_data(AACContext *ac, SpectralBandReplication *sbr,
+                                  GetBitContext *gb, int id_aac)
+{
+    unsigned int cnt = get_bits_count(gb);
+
+    sbr->id_aac = id_aac;
+    sbr->ready_for_dequant = 1;
+
+    if (id_aac == TYPE_SCE || id_aac == TYPE_CCE) {
+        if (read_sbr_single_channel_element(ac, sbr, gb)) {
+            sbr_turnoff(sbr);
+            return get_bits_count(gb) - cnt;
+        }
+    } else if (id_aac == TYPE_CPE) {
+        if (read_sbr_channel_pair_element(ac, sbr, gb)) {
+            sbr_turnoff(sbr);
+            return get_bits_count(gb) - cnt;
+        }
+    } else {
+        av_log(ac->avctx, AV_LOG_ERROR,
+            "Invalid bitstream - cannot apply SBR to element type %d\n", id_aac);
+        sbr_turnoff(sbr);
+        return get_bits_count(gb) - cnt;
+    }
+    if (get_bits1(gb)) { // bs_extended_data
+        int num_bits_left = get_bits(gb, 4); // bs_extension_size
+        if (num_bits_left == 15)
+            num_bits_left += get_bits(gb, 8); // bs_esc_count
+
+        num_bits_left <<= 3;
+        while (num_bits_left > 7) {
+            num_bits_left -= 2;
+            read_sbr_extension(ac, sbr, gb, get_bits(gb, 2), &num_bits_left); // bs_extension_id
+        }
+        if (num_bits_left < 0) {
+            av_log(ac->avctx, AV_LOG_ERROR, "SBR Extension over read.\n");
+        }
+        if (num_bits_left > 0)
+            skip_bits(gb, num_bits_left);
+    }
+
+    return get_bits_count(gb) - cnt;
+}
+
+static void sbr_reset(AACContext *ac, SpectralBandReplication *sbr)
+{
+    int err;
+    err = sbr_make_f_master(ac, sbr, &sbr->spectrum_params);
+    if (err >= 0)
+        err = sbr_make_f_derived(ac, sbr);
+    if (err < 0) {
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "SBR reset failed. Switching SBR to pure upsampling mode.\n");
+        sbr_turnoff(sbr);
+    }
+}
+
+/**
+ * Decode Spectral Band Replication extension data; reference: table 4.55.
+ *
+ * @param   crc flag indicating the presence of CRC checksum
+ * @param   cnt length of TYPE_FIL syntactic element in bytes
+ *
+ * @return  Returns number of bytes consumed from the TYPE_FIL element.
+ */
+int AAC_RENAME(ff_decode_sbr_extension)(AACContext *ac, SpectralBandReplication *sbr,
+                            GetBitContext *gb_host, int crc, int cnt, int id_aac)
+{
+    unsigned int num_sbr_bits = 0, num_align_bits;
+    unsigned bytes_read;
+    GetBitContext gbc = *gb_host, *gb = &gbc;
+    skip_bits_long(gb_host, cnt*8 - 4);
+
+    sbr->reset = 0;
+
+    if (!sbr->sample_rate)
+        sbr->sample_rate = 2 * ac->oc[1].m4ac.sample_rate; //TODO use the nominal sample rate for arbitrary sample rate support
+    if (!ac->oc[1].m4ac.ext_sample_rate)
+        ac->oc[1].m4ac.ext_sample_rate = 2 * ac->oc[1].m4ac.sample_rate;
+
+    if (crc) {
+        skip_bits(gb, 10); // bs_sbr_crc_bits; TODO - implement CRC check
+        num_sbr_bits += 10;
+    }
+
+    //Save some state from the previous frame.
+    sbr->kx[0] = sbr->kx[1];
+    sbr->m[0] = sbr->m[1];
+    sbr->kx_and_m_pushed = 1;
+
+    num_sbr_bits++;
+    if (get_bits1(gb)) // bs_header_flag
+        num_sbr_bits += read_sbr_header(sbr, gb);
+
+    if (sbr->reset)
+        sbr_reset(ac, sbr);
+
+    if (sbr->start)
+        num_sbr_bits  += read_sbr_data(ac, sbr, gb, id_aac);
+
+    num_align_bits = ((cnt << 3) - 4 - num_sbr_bits) & 7;
+    bytes_read = ((num_sbr_bits + num_align_bits + 4) >> 3);
+
+    if (bytes_read > cnt) {
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "Expected to read %d SBR bytes actually read %d.\n", cnt, bytes_read);
+        sbr_turnoff(sbr);
+    }
+    return cnt;
+}
+
+/**
+ * Analysis QMF Bank (14496-3 sp04 p206)
+ *
+ * @param   x       pointer to the beginning of the first sample window
+ * @param   W       array of complex-valued samples split into subbands
+ */
+#ifndef sbr_qmf_analysis
+#if USE_FIXED
+static void sbr_qmf_analysis(AVFixedDSPContext *dsp, FFTContext *mdct,
+#else
+static void sbr_qmf_analysis(AVFloatDSPContext *dsp, FFTContext *mdct,
+#endif /* USE_FIXED */
+                             SBRDSPContext *sbrdsp, const INTFLOAT *in, INTFLOAT *x,
+                             INTFLOAT z[320], INTFLOAT W[2][32][32][2], int buf_idx)
+{
+    int i;
+#if USE_FIXED
+    int j;
+#endif
+    memcpy(x    , x+1024, (320-32)*sizeof(x[0]));
+    memcpy(x+288, in,         1024*sizeof(x[0]));
+    for (i = 0; i < 32; i++) { // numTimeSlots*RATE = 16*2 as 960 sample frames
+                               // are not supported
+        dsp->vector_fmul_reverse(z, sbr_qmf_window_ds, x, 320);
+        sbrdsp->sum64x5(z);
+        sbrdsp->qmf_pre_shuffle(z);
+#if USE_FIXED
+        for (j = 64; j < 128; j++) {
+            if (z[j] > 1<<24) {
+                av_log(NULL, AV_LOG_WARNING,
+                       "sbr_qmf_analysis: value %09d too large, setting to %09d\n",
+                       z[j], 1<<24);
+                z[j] = 1<<24;
+            } else if (z[j] < -(1<<24)) {
+                av_log(NULL, AV_LOG_WARNING,
+                       "sbr_qmf_analysis: value %09d too small, setting to %09d\n",
+                       z[j], -(1<<24));
+                z[j] = -(1<<24);
+            }
+        }
+#endif
+        mdct->imdct_half(mdct, z, z+64);
+        sbrdsp->qmf_post_shuffle(W[buf_idx][i], z);
+        x += 32;
+    }
+}
+#endif
+
+/**
+ * Synthesis QMF Bank (14496-3 sp04 p206) and Downsampled Synthesis QMF Bank
+ * (14496-3 sp04 p206)
+ */
+#ifndef sbr_qmf_synthesis
+static void sbr_qmf_synthesis(FFTContext *mdct,
+#if USE_FIXED
+                              SBRDSPContext *sbrdsp, AVFixedDSPContext *dsp,
+#else
+                              SBRDSPContext *sbrdsp, AVFloatDSPContext *dsp,
+#endif /* USE_FIXED */
+                              INTFLOAT *out, INTFLOAT X[2][38][64],
+                              INTFLOAT mdct_buf[2][64],
+                              INTFLOAT *v0, int *v_off, const unsigned int div)
+{
+    int i, n;
+    const INTFLOAT *sbr_qmf_window = div ? sbr_qmf_window_ds : sbr_qmf_window_us;
+    const int step = 128 >> div;
+    INTFLOAT *v;
+    for (i = 0; i < 32; i++) {
+        if (*v_off < step) {
+            int saved_samples = (1280 - 128) >> div;
+            memcpy(&v0[SBR_SYNTHESIS_BUF_SIZE - saved_samples], v0, saved_samples * sizeof(INTFLOAT));
+            *v_off = SBR_SYNTHESIS_BUF_SIZE - saved_samples - step;
+        } else {
+            *v_off -= step;
+        }
+        v = v0 + *v_off;
+        if (div) {
+            for (n = 0; n < 32; n++) {
+                X[0][i][   n] = -X[0][i][n];
+                X[0][i][32+n] =  X[1][i][31-n];
+            }
+            mdct->imdct_half(mdct, mdct_buf[0], X[0][i]);
+            sbrdsp->qmf_deint_neg(v, mdct_buf[0]);
+        } else {
+            sbrdsp->neg_odd_64(X[1][i]);
+            mdct->imdct_half(mdct, mdct_buf[0], X[0][i]);
+            mdct->imdct_half(mdct, mdct_buf[1], X[1][i]);
+            sbrdsp->qmf_deint_bfly(v, mdct_buf[1], mdct_buf[0]);
+        }
+        dsp->vector_fmul    (out, v                , sbr_qmf_window                       , 64 >> div);
+        dsp->vector_fmul_add(out, v + ( 192 >> div), sbr_qmf_window + ( 64 >> div), out   , 64 >> div);
+        dsp->vector_fmul_add(out, v + ( 256 >> div), sbr_qmf_window + (128 >> div), out   , 64 >> div);
+        dsp->vector_fmul_add(out, v + ( 448 >> div), sbr_qmf_window + (192 >> div), out   , 64 >> div);
+        dsp->vector_fmul_add(out, v + ( 512 >> div), sbr_qmf_window + (256 >> div), out   , 64 >> div);
+        dsp->vector_fmul_add(out, v + ( 704 >> div), sbr_qmf_window + (320 >> div), out   , 64 >> div);
+        dsp->vector_fmul_add(out, v + ( 768 >> div), sbr_qmf_window + (384 >> div), out   , 64 >> div);
+        dsp->vector_fmul_add(out, v + ( 960 >> div), sbr_qmf_window + (448 >> div), out   , 64 >> div);
+        dsp->vector_fmul_add(out, v + (1024 >> div), sbr_qmf_window + (512 >> div), out   , 64 >> div);
+        dsp->vector_fmul_add(out, v + (1216 >> div), sbr_qmf_window + (576 >> div), out   , 64 >> div);
+        out += 64 >> div;
+    }
+}
+#endif
+
+/// Generate the subband filtered lowband
+static int sbr_lf_gen(AACContext *ac, SpectralBandReplication *sbr,
+                      INTFLOAT X_low[32][40][2], const INTFLOAT W[2][32][32][2],
+                      int buf_idx)
+{
+    int i, k;
+    const int t_HFGen = 8;
+    const int i_f = 32;
+    memset(X_low, 0, 32*sizeof(*X_low));
+    for (k = 0; k < sbr->kx[1]; k++) {
+        for (i = t_HFGen; i < i_f + t_HFGen; i++) {
+            X_low[k][i][0] = W[buf_idx][i - t_HFGen][k][0];
+            X_low[k][i][1] = W[buf_idx][i - t_HFGen][k][1];
+        }
+    }
+    buf_idx = 1-buf_idx;
+    for (k = 0; k < sbr->kx[0]; k++) {
+        for (i = 0; i < t_HFGen; i++) {
+            X_low[k][i][0] = W[buf_idx][i + i_f - t_HFGen][k][0];
+            X_low[k][i][1] = W[buf_idx][i + i_f - t_HFGen][k][1];
+        }
+    }
+    return 0;
+}
+
+/// High Frequency Generator (14496-3 sp04 p215)
+static int sbr_hf_gen(AACContext *ac, SpectralBandReplication *sbr,
+                      INTFLOAT X_high[64][40][2], const INTFLOAT X_low[32][40][2],
+                      const INTFLOAT (*alpha0)[2], const INTFLOAT (*alpha1)[2],
+                      const INTFLOAT bw_array[5], const uint8_t *t_env,
+                      int bs_num_env)
+{
+    int j, x;
+    int g = 0;
+    int k = sbr->kx[1];
+    for (j = 0; j < sbr->num_patches; j++) {
+        for (x = 0; x < sbr->patch_num_subbands[j]; x++, k++) {
+            const int p = sbr->patch_start_subband[j] + x;
+            while (g <= sbr->n_q && k >= sbr->f_tablenoise[g])
+                g++;
+            g--;
+
+            if (g < 0) {
+                av_log(ac->avctx, AV_LOG_ERROR,
+                       "ERROR : no subband found for frequency %d\n", k);
+                return -1;
+            }
+
+            sbr->dsp.hf_gen(X_high[k] + ENVELOPE_ADJUSTMENT_OFFSET,
+                            X_low[p]  + ENVELOPE_ADJUSTMENT_OFFSET,
+                            alpha0[p], alpha1[p], bw_array[g],
+                            2 * t_env[0], 2 * t_env[bs_num_env]);
+        }
+    }
+    if (k < sbr->m[1] + sbr->kx[1])
+        memset(X_high + k, 0, (sbr->m[1] + sbr->kx[1] - k) * sizeof(*X_high));
+
+    return 0;
+}
+
+/// Generate the subband filtered lowband
+static int sbr_x_gen(SpectralBandReplication *sbr, INTFLOAT X[2][38][64],
+                     const INTFLOAT Y0[38][64][2], const INTFLOAT Y1[38][64][2],
+                     const INTFLOAT X_low[32][40][2], int ch)
+{
+    int k, i;
+    const int i_f = 32;
+    const int i_Temp = FFMAX(2*sbr->data[ch].t_env_num_env_old - i_f, 0);
+    memset(X, 0, 2*sizeof(*X));
+    for (k = 0; k < sbr->kx[0]; k++) {
+        for (i = 0; i < i_Temp; i++) {
+            X[0][i][k] = X_low[k][i + ENVELOPE_ADJUSTMENT_OFFSET][0];
+            X[1][i][k] = X_low[k][i + ENVELOPE_ADJUSTMENT_OFFSET][1];
+        }
+    }
+    for (; k < sbr->kx[0] + sbr->m[0]; k++) {
+        for (i = 0; i < i_Temp; i++) {
+            X[0][i][k] = Y0[i + i_f][k][0];
+            X[1][i][k] = Y0[i + i_f][k][1];
+        }
+    }
+
+    for (k = 0; k < sbr->kx[1]; k++) {
+        for (i = i_Temp; i < 38; i++) {
+            X[0][i][k] = X_low[k][i + ENVELOPE_ADJUSTMENT_OFFSET][0];
+            X[1][i][k] = X_low[k][i + ENVELOPE_ADJUSTMENT_OFFSET][1];
+        }
+    }
+    for (; k < sbr->kx[1] + sbr->m[1]; k++) {
+        for (i = i_Temp; i < i_f; i++) {
+            X[0][i][k] = Y1[i][k][0];
+            X[1][i][k] = Y1[i][k][1];
+        }
+    }
+    return 0;
+}
+
+/** High Frequency Adjustment (14496-3 sp04 p217) and Mapping
+ * (14496-3 sp04 p217)
+ */
+static int sbr_mapping(AACContext *ac, SpectralBandReplication *sbr,
+                        SBRData *ch_data, int e_a[2])
+{
+    int e, i, m;
+
+    memset(ch_data->s_indexmapped[1], 0, 7*sizeof(ch_data->s_indexmapped[1]));
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        const unsigned int ilim = sbr->n[ch_data->bs_freq_res[e + 1]];
+        uint16_t *table = ch_data->bs_freq_res[e + 1] ? sbr->f_tablehigh : sbr->f_tablelow;
+        int k;
+
+        if (sbr->kx[1] != table[0]) {
+            av_log(ac->avctx, AV_LOG_ERROR, "kx != f_table{high,low}[0]. "
+                   "Derived frequency tables were not regenerated.\n");
+            sbr_turnoff(sbr);
+            return AVERROR_BUG;
+        }
+        for (i = 0; i < ilim; i++)
+            for (m = table[i]; m < table[i + 1]; m++)
+                sbr->e_origmapped[e][m - sbr->kx[1]] = ch_data->env_facs[e+1][i];
+
+        // ch_data->bs_num_noise > 1 => 2 noise floors
+        k = (ch_data->bs_num_noise > 1) && (ch_data->t_env[e] >= ch_data->t_q[1]);
+        for (i = 0; i < sbr->n_q; i++)
+            for (m = sbr->f_tablenoise[i]; m < sbr->f_tablenoise[i + 1]; m++)
+                sbr->q_mapped[e][m - sbr->kx[1]] = ch_data->noise_facs[k+1][i];
+
+        for (i = 0; i < sbr->n[1]; i++) {
+            if (ch_data->bs_add_harmonic_flag) {
+                const unsigned int m_midpoint =
+                    (sbr->f_tablehigh[i] + sbr->f_tablehigh[i + 1]) >> 1;
+
+                ch_data->s_indexmapped[e + 1][m_midpoint - sbr->kx[1]] = ch_data->bs_add_harmonic[i] *
+                    (e >= e_a[1] || (ch_data->s_indexmapped[0][m_midpoint - sbr->kx[1]] == 1));
+            }
+        }
+
+        for (i = 0; i < ilim; i++) {
+            int additional_sinusoid_present = 0;
+            for (m = table[i]; m < table[i + 1]; m++) {
+                if (ch_data->s_indexmapped[e + 1][m - sbr->kx[1]]) {
+                    additional_sinusoid_present = 1;
+                    break;
+                }
+            }
+            memset(&sbr->s_mapped[e][table[i] - sbr->kx[1]], additional_sinusoid_present,
+                   (table[i + 1] - table[i]) * sizeof(sbr->s_mapped[e][0]));
+        }
+    }
+
+    memcpy(ch_data->s_indexmapped[0], ch_data->s_indexmapped[ch_data->bs_num_env], sizeof(ch_data->s_indexmapped[0]));
+    return 0;
+}
+
+/// Estimation of current envelope (14496-3 sp04 p218)
+static void sbr_env_estimate(AAC_FLOAT (*e_curr)[48], INTFLOAT X_high[64][40][2],
+                             SpectralBandReplication *sbr, SBRData *ch_data)
+{
+    int e, m;
+    int kx1 = sbr->kx[1];
+
+    if (sbr->bs_interpol_freq) {
+        for (e = 0; e < ch_data->bs_num_env; e++) {
+#if USE_FIXED
+            const SoftFloat recip_env_size = av_int2sf(0x20000000 / (ch_data->t_env[e + 1] - ch_data->t_env[e]), 30);
+#else
+            const float recip_env_size = 0.5f / (ch_data->t_env[e + 1] - ch_data->t_env[e]);
+#endif /* USE_FIXED */
+            int ilb = ch_data->t_env[e]     * 2 + ENVELOPE_ADJUSTMENT_OFFSET;
+            int iub = ch_data->t_env[e + 1] * 2 + ENVELOPE_ADJUSTMENT_OFFSET;
+
+            for (m = 0; m < sbr->m[1]; m++) {
+                AAC_FLOAT sum = sbr->dsp.sum_square(X_high[m+kx1] + ilb, iub - ilb);
+#if USE_FIXED
+                e_curr[e][m] = av_mul_sf(sum, recip_env_size);
+#else
+                e_curr[e][m] = sum * recip_env_size;
+#endif /* USE_FIXED */
+            }
+        }
+    } else {
+        int k, p;
+
+        for (e = 0; e < ch_data->bs_num_env; e++) {
+            const int env_size = 2 * (ch_data->t_env[e + 1] - ch_data->t_env[e]);
+            int ilb = ch_data->t_env[e]     * 2 + ENVELOPE_ADJUSTMENT_OFFSET;
+            int iub = ch_data->t_env[e + 1] * 2 + ENVELOPE_ADJUSTMENT_OFFSET;
+            const uint16_t *table = ch_data->bs_freq_res[e + 1] ? sbr->f_tablehigh : sbr->f_tablelow;
+
+            for (p = 0; p < sbr->n[ch_data->bs_freq_res[e + 1]]; p++) {
+#if USE_FIXED
+                SoftFloat sum = FLOAT_0;
+                const SoftFloat den = av_int2sf(0x20000000 / (env_size * (table[p + 1] - table[p])), 29);
+                for (k = table[p]; k < table[p + 1]; k++) {
+                    sum = av_add_sf(sum, sbr->dsp.sum_square(X_high[k] + ilb, iub - ilb));
+                }
+                sum = av_mul_sf(sum, den);
+#else
+                float sum = 0.0f;
+                const int den = env_size * (table[p + 1] - table[p]);
+
+                for (k = table[p]; k < table[p + 1]; k++) {
+                    sum += sbr->dsp.sum_square(X_high[k] + ilb, iub - ilb);
+                }
+                sum /= den;
+#endif /* USE_FIXED */
+                for (k = table[p]; k < table[p + 1]; k++) {
+                    e_curr[e][k - kx1] = sum;
+                }
+            }
+        }
+    }
+}
+
+void AAC_RENAME(ff_sbr_apply)(AACContext *ac, SpectralBandReplication *sbr, int id_aac,
+                  INTFLOAT* L, INTFLOAT* R)
+{
+    int downsampled = ac->oc[1].m4ac.ext_sample_rate < sbr->sample_rate;
+    int ch;
+    int nch = (id_aac == TYPE_CPE) ? 2 : 1;
+    int err;
+
+    if (id_aac != sbr->id_aac) {
+        av_log(ac->avctx, id_aac == TYPE_LFE ? AV_LOG_VERBOSE : AV_LOG_WARNING,
+            "element type mismatch %d != %d\n", id_aac, sbr->id_aac);
+        sbr_turnoff(sbr);
+    }
+
+    if (sbr->start && !sbr->ready_for_dequant) {
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "No quantized data read for sbr_dequant.\n");
+        sbr_turnoff(sbr);
+    }
+
+    if (!sbr->kx_and_m_pushed) {
+        sbr->kx[0] = sbr->kx[1];
+        sbr->m[0] = sbr->m[1];
+    } else {
+        sbr->kx_and_m_pushed = 0;
+    }
+
+    if (sbr->start) {
+        sbr_dequant(sbr, id_aac);
+        sbr->ready_for_dequant = 0;
+    }
+    for (ch = 0; ch < nch; ch++) {
+        /* decode channel */
+        sbr_qmf_analysis(ac->fdsp, &sbr->mdct_ana, &sbr->dsp, ch ? R : L, sbr->data[ch].analysis_filterbank_samples,
+                         (INTFLOAT*)sbr->qmf_filter_scratch,
+                         sbr->data[ch].W, sbr->data[ch].Ypos);
+        sbr->c.sbr_lf_gen(ac, sbr, sbr->X_low,
+                          (const INTFLOAT (*)[32][32][2]) sbr->data[ch].W,
+                          sbr->data[ch].Ypos);
+        sbr->data[ch].Ypos ^= 1;
+        if (sbr->start) {
+            sbr->c.sbr_hf_inverse_filter(&sbr->dsp, sbr->alpha0, sbr->alpha1,
+                                         (const INTFLOAT (*)[40][2]) sbr->X_low, sbr->k[0]);
+            sbr_chirp(sbr, &sbr->data[ch]);
+            av_assert0(sbr->data[ch].bs_num_env > 0);
+            sbr_hf_gen(ac, sbr, sbr->X_high,
+                       (const INTFLOAT (*)[40][2]) sbr->X_low,
+                       (const INTFLOAT (*)[2]) sbr->alpha0,
+                       (const INTFLOAT (*)[2]) sbr->alpha1,
+                       sbr->data[ch].bw_array, sbr->data[ch].t_env,
+                       sbr->data[ch].bs_num_env);
+
+            // hf_adj
+            err = sbr_mapping(ac, sbr, &sbr->data[ch], sbr->data[ch].e_a);
+            if (!err) {
+                sbr_env_estimate(sbr->e_curr, sbr->X_high, sbr, &sbr->data[ch]);
+                sbr_gain_calc(ac, sbr, &sbr->data[ch], sbr->data[ch].e_a);
+                sbr->c.sbr_hf_assemble(sbr->data[ch].Y[sbr->data[ch].Ypos],
+                                (const INTFLOAT (*)[40][2]) sbr->X_high,
+                                sbr, &sbr->data[ch],
+                                sbr->data[ch].e_a);
+            }
+        }
+
+        /* synthesis */
+        sbr->c.sbr_x_gen(sbr, sbr->X[ch],
+                  (const INTFLOAT (*)[64][2]) sbr->data[ch].Y[1-sbr->data[ch].Ypos],
+                  (const INTFLOAT (*)[64][2]) sbr->data[ch].Y[  sbr->data[ch].Ypos],
+                  (const INTFLOAT (*)[40][2]) sbr->X_low, ch);
+    }
+
+    if (ac->oc[1].m4ac.ps == 1) {
+        if (sbr->ps.start) {
+            AAC_RENAME(ff_ps_apply)(ac->avctx, &sbr->ps, sbr->X[0], sbr->X[1], sbr->kx[1] + sbr->m[1]);
+        } else {
+            memcpy(sbr->X[1], sbr->X[0], sizeof(sbr->X[0]));
+        }
+        nch = 2;
+    }
+
+    sbr_qmf_synthesis(&sbr->mdct, &sbr->dsp, ac->fdsp,
+                      L, sbr->X[0], sbr->qmf_filter_scratch,
+                      sbr->data[0].synthesis_filterbank_samples,
+                      &sbr->data[0].synthesis_filterbank_samples_offset,
+                      downsampled);
+    if (nch == 2)
+        sbr_qmf_synthesis(&sbr->mdct, &sbr->dsp, ac->fdsp,
+                          R, sbr->X[1], sbr->qmf_filter_scratch,
+                          sbr->data[1].synthesis_filterbank_samples,
+                          &sbr->data[1].synthesis_filterbank_samples_offset,
+                          downsampled);
+}
+
+static void aacsbr_func_ptr_init(AACSBRContext *c)
+{
+    c->sbr_lf_gen            = sbr_lf_gen;
+    c->sbr_hf_assemble       = sbr_hf_assemble;
+    c->sbr_x_gen             = sbr_x_gen;
+    c->sbr_hf_inverse_filter = sbr_hf_inverse_filter;
+
+#if !USE_FIXED
+    if(ARCH_MIPS)
+        ff_aacsbr_func_ptr_init_mips(c);
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbrdata.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbrdata.h
new file mode 100644
index 000000000..4ff8fae91
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aacsbrdata.h
@@ -0,0 +1,535 @@
+/*
+ * AAC Spectral Band Replication decoding data
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC Spectral Band Replication decoding data
+ * @author Robert Swain ( rob opendot cl )
+ */
+
+#ifndef AVCODEC_AACSBRDATA_H
+#define AVCODEC_AACSBRDATA_H
+
+#include <stdint.h>
+#include "libavutil/mem.h"
+#include "aac_defines.h"
+
+///< Huffman tables for SBR
+
+static const uint8_t t_huffman_env_1_5dB_bits[121] = {
+    18, 18, 18, 18, 18, 18, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 17, 18, 16, 17, 18, 17,
+    16, 16, 16, 16, 15, 14, 14, 13,
+    13, 12, 11, 10,  9,  8,  7,  6,
+     5,  4,  3,  2,  2,  3,  4,  5,
+     6,  7,  8,  9, 10, 12, 13, 14,
+    14, 15, 16, 17, 16, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19,
+};
+
+static const uint32_t t_huffman_env_1_5dB_codes[121] = {
+    0x3ffd6, 0x3ffd7, 0x3ffd8, 0x3ffd9, 0x3ffda, 0x3ffdb, 0x7ffb8, 0x7ffb9,
+    0x7ffba, 0x7ffbb, 0x7ffbc, 0x7ffbd, 0x7ffbe, 0x7ffbf, 0x7ffc0, 0x7ffc1,
+    0x7ffc2, 0x7ffc3, 0x7ffc4, 0x7ffc5, 0x7ffc6, 0x7ffc7, 0x7ffc8, 0x7ffc9,
+    0x7ffca, 0x7ffcb, 0x7ffcc, 0x7ffcd, 0x7ffce, 0x7ffcf, 0x7ffd0, 0x7ffd1,
+    0x7ffd2, 0x7ffd3, 0x1ffe6, 0x3ffd4, 0x0fff0, 0x1ffe9, 0x3ffd5, 0x1ffe7,
+    0x0fff1, 0x0ffec, 0x0ffed, 0x0ffee, 0x07ff4, 0x03ff9, 0x03ff7, 0x01ffa,
+    0x01ff9, 0x00ffb, 0x007fc, 0x003fc, 0x001fd, 0x000fd, 0x0007d, 0x0003d,
+    0x0001d, 0x0000d, 0x00005, 0x00001, 0x00000, 0x00004, 0x0000c, 0x0001c,
+    0x0003c, 0x0007c, 0x000fc, 0x001fc, 0x003fd, 0x00ffa, 0x01ff8, 0x03ff6,
+    0x03ff8, 0x07ff5, 0x0ffef, 0x1ffe8, 0x0fff2, 0x7ffd4, 0x7ffd5, 0x7ffd6,
+    0x7ffd7, 0x7ffd8, 0x7ffd9, 0x7ffda, 0x7ffdb, 0x7ffdc, 0x7ffdd, 0x7ffde,
+    0x7ffdf, 0x7ffe0, 0x7ffe1, 0x7ffe2, 0x7ffe3, 0x7ffe4, 0x7ffe5, 0x7ffe6,
+    0x7ffe7, 0x7ffe8, 0x7ffe9, 0x7ffea, 0x7ffeb, 0x7ffec, 0x7ffed, 0x7ffee,
+    0x7ffef, 0x7fff0, 0x7fff1, 0x7fff2, 0x7fff3, 0x7fff4, 0x7fff5, 0x7fff6,
+    0x7fff7, 0x7fff8, 0x7fff9, 0x7fffa, 0x7fffb, 0x7fffc, 0x7fffd, 0x7fffe,
+    0x7ffff,
+};
+
+static const uint8_t f_huffman_env_1_5dB_bits[121] = {
+    19, 19, 20, 20, 20, 20, 20, 20,
+    20, 19, 20, 20, 20, 20, 19, 20,
+    19, 19, 20, 18, 20, 20, 20, 19,
+    20, 20, 20, 19, 20, 19, 18, 19,
+    18, 18, 17, 18, 17, 17, 17, 16,
+    16, 16, 15, 15, 14, 13, 13, 12,
+    12, 11, 10,  9,  9,  8,  7,  6,
+     5,  4,  3,  2,  2,  3,  4,  5,
+     6,  8,  8,  9, 10, 11, 11, 11,
+    12, 12, 13, 13, 14, 14, 16, 16,
+    17, 17, 18, 18, 18, 18, 18, 18,
+    18, 20, 19, 20, 20, 20, 20, 20,
+    20, 19, 20, 20, 20, 20, 19, 20,
+    18, 20, 20, 19, 19, 20, 20, 20,
+    20, 20, 20, 20, 20, 20, 20, 20,
+    20,
+};
+
+static const uint32_t f_huffman_env_1_5dB_codes[121] = {
+    0x7ffe7, 0x7ffe8, 0xfffd2, 0xfffd3, 0xfffd4, 0xfffd5, 0xfffd6, 0xfffd7,
+    0xfffd8, 0x7ffda, 0xfffd9, 0xfffda, 0xfffdb, 0xfffdc, 0x7ffdb, 0xfffdd,
+    0x7ffdc, 0x7ffdd, 0xfffde, 0x3ffe4, 0xfffdf, 0xfffe0, 0xfffe1, 0x7ffde,
+    0xfffe2, 0xfffe3, 0xfffe4, 0x7ffdf, 0xfffe5, 0x7ffe0, 0x3ffe8, 0x7ffe1,
+    0x3ffe0, 0x3ffe9, 0x1ffef, 0x3ffe5, 0x1ffec, 0x1ffed, 0x1ffee, 0x0fff4,
+    0x0fff3, 0x0fff0, 0x07ff7, 0x07ff6, 0x03ffa, 0x01ffa, 0x01ff9, 0x00ffa,
+    0x00ff8, 0x007f9, 0x003fb, 0x001fc, 0x001fa, 0x000fb, 0x0007c, 0x0003c,
+    0x0001c, 0x0000c, 0x00005, 0x00001, 0x00000, 0x00004, 0x0000d, 0x0001d,
+    0x0003d, 0x000fa, 0x000fc, 0x001fb, 0x003fa, 0x007f8, 0x007fa, 0x007fb,
+    0x00ff9, 0x00ffb, 0x01ff8, 0x01ffb, 0x03ff8, 0x03ff9, 0x0fff1, 0x0fff2,
+    0x1ffea, 0x1ffeb, 0x3ffe1, 0x3ffe2, 0x3ffea, 0x3ffe3, 0x3ffe6, 0x3ffe7,
+    0x3ffeb, 0xfffe6, 0x7ffe2, 0xfffe7, 0xfffe8, 0xfffe9, 0xfffea, 0xfffeb,
+    0xfffec, 0x7ffe3, 0xfffed, 0xfffee, 0xfffef, 0xffff0, 0x7ffe4, 0xffff1,
+    0x3ffec, 0xffff2, 0xffff3, 0x7ffe5, 0x7ffe6, 0xffff4, 0xffff5, 0xffff6,
+    0xffff7, 0xffff8, 0xffff9, 0xffffa, 0xffffb, 0xffffc, 0xffffd, 0xffffe,
+    0xfffff,
+};
+
+static const uint8_t t_huffman_env_bal_1_5dB_bits[49] = {
+    16, 16, 16, 16, 16, 16, 16, 16,
+    16, 16, 16, 16, 16, 16, 16, 16,
+    16, 16, 12, 11,  9,  7,  5,  3,
+     1,  2,  4,  6,  8, 11, 12, 15,
+    16, 16, 16, 16, 16, 16, 16, 17,
+    17, 17, 17, 17, 17, 17, 17, 17,
+    17,
+};
+
+static const uint32_t t_huffman_env_bal_1_5dB_codes[49] = {
+    0x0ffe4, 0x0ffe5, 0x0ffe6, 0x0ffe7, 0x0ffe8, 0x0ffe9, 0x0ffea, 0x0ffeb,
+    0x0ffec, 0x0ffed, 0x0ffee, 0x0ffef, 0x0fff0, 0x0fff1, 0x0fff2, 0x0fff3,
+    0x0fff4, 0x0ffe2, 0x00ffc, 0x007fc, 0x001fe, 0x0007e, 0x0001e, 0x00006,
+    0x00000, 0x00002, 0x0000e, 0x0003e, 0x000fe, 0x007fd, 0x00ffd, 0x07ff0,
+    0x0ffe3, 0x0fff5, 0x0fff6, 0x0fff7, 0x0fff8, 0x0fff9, 0x0fffa, 0x1fff6,
+    0x1fff7, 0x1fff8, 0x1fff9, 0x1fffa, 0x1fffb, 0x1fffc, 0x1fffd, 0x1fffe,
+    0x1ffff,
+};
+
+static const uint8_t f_huffman_env_bal_1_5dB_bits[49] = {
+    18, 18, 18, 18, 18, 18, 18, 18,
+    18, 18, 18, 18, 18, 18, 18, 16,
+    17, 14, 11, 11,  8,  7,  4,  2,
+     1,  3,  5,  6,  9, 11, 12, 15,
+    16, 18, 18, 18, 18, 18, 18, 18,
+    18, 18, 18, 18, 18, 18, 18, 19,
+    19,
+};
+
+static const uint32_t f_huffman_env_bal_1_5dB_codes[49] = {
+    0x3ffe2, 0x3ffe3, 0x3ffe4, 0x3ffe5, 0x3ffe6, 0x3ffe7, 0x3ffe8, 0x3ffe9,
+    0x3ffea, 0x3ffeb, 0x3ffec, 0x3ffed, 0x3ffee, 0x3ffef, 0x3fff0, 0x0fff7,
+    0x1fff0, 0x03ffc, 0x007fe, 0x007fc, 0x000fe, 0x0007e, 0x0000e, 0x00002,
+    0x00000, 0x00006, 0x0001e, 0x0003e, 0x001fe, 0x007fd, 0x00ffe, 0x07ffa,
+    0x0fff6, 0x3fff1, 0x3fff2, 0x3fff3, 0x3fff4, 0x3fff5, 0x3fff6, 0x3fff7,
+    0x3fff8, 0x3fff9, 0x3fffa, 0x3fffb, 0x3fffc, 0x3fffd, 0x3fffe, 0x7fffe,
+    0x7ffff,
+};
+
+static const uint8_t t_huffman_env_3_0dB_bits[63] = {
+    18, 18, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 17, 16, 16, 16, 14, 14, 14,
+    13, 12, 11,  8,  6,  4,  2,  1,
+     3,  5,  7,  9, 11, 13, 14, 14,
+    15, 16, 17, 18, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19,
+};
+
+static const uint32_t t_huffman_env_3_0dB_codes[63] = {
+    0x3ffed, 0x3ffee, 0x7ffde, 0x7ffdf, 0x7ffe0, 0x7ffe1, 0x7ffe2, 0x7ffe3,
+    0x7ffe4, 0x7ffe5, 0x7ffe6, 0x7ffe7, 0x7ffe8, 0x7ffe9, 0x7ffea, 0x7ffeb,
+    0x7ffec, 0x1fff4, 0x0fff7, 0x0fff9, 0x0fff8, 0x03ffb, 0x03ffa, 0x03ff8,
+    0x01ffa, 0x00ffc, 0x007fc, 0x000fe, 0x0003e, 0x0000e, 0x00002, 0x00000,
+    0x00006, 0x0001e, 0x0007e, 0x001fe, 0x007fd, 0x01ffb, 0x03ff9, 0x03ffc,
+    0x07ffa, 0x0fff6, 0x1fff5, 0x3ffec, 0x7ffed, 0x7ffee, 0x7ffef, 0x7fff0,
+    0x7fff1, 0x7fff2, 0x7fff3, 0x7fff4, 0x7fff5, 0x7fff6, 0x7fff7, 0x7fff8,
+    0x7fff9, 0x7fffa, 0x7fffb, 0x7fffc, 0x7fffd, 0x7fffe, 0x7ffff,
+};
+
+static const uint8_t f_huffman_env_3_0dB_bits[63] = {
+    20, 20, 20, 20, 20, 20, 20, 18,
+    19, 19, 19, 19, 18, 18, 20, 19,
+    17, 18, 17, 16, 16, 15, 14, 12,
+    11, 10,  9,  8,  6,  4,  2,  1,
+     3,  5,  8,  9, 10, 11, 12, 13,
+    14, 15, 15, 16, 16, 17, 17, 18,
+    18, 18, 20, 19, 19, 19, 20, 19,
+    19, 20, 20, 20, 20, 20, 20,
+};
+
+static const uint32_t f_huffman_env_3_0dB_codes[63] = {
+    0xffff0, 0xffff1, 0xffff2, 0xffff3, 0xffff4, 0xffff5, 0xffff6, 0x3fff3,
+    0x7fff5, 0x7ffee, 0x7ffef, 0x7fff6, 0x3fff4, 0x3fff2, 0xffff7, 0x7fff0,
+    0x1fff5, 0x3fff0, 0x1fff4, 0x0fff7, 0x0fff6, 0x07ff8, 0x03ffb, 0x00ffd,
+    0x007fd, 0x003fd, 0x001fd, 0x000fd, 0x0003e, 0x0000e, 0x00002, 0x00000,
+    0x00006, 0x0001e, 0x000fc, 0x001fc, 0x003fc, 0x007fc, 0x00ffc, 0x01ffc,
+    0x03ffa, 0x07ff9, 0x07ffa, 0x0fff8, 0x0fff9, 0x1fff6, 0x1fff7, 0x3fff5,
+    0x3fff6, 0x3fff1, 0xffff8, 0x7fff1, 0x7fff2, 0x7fff3, 0xffff9, 0x7fff7,
+    0x7fff4, 0xffffa, 0xffffb, 0xffffc, 0xffffd, 0xffffe, 0xfffff,
+};
+
+static const uint8_t t_huffman_env_bal_3_0dB_bits[25] = {
+    13, 13, 13, 13, 13, 13, 13, 12,
+     8,  7,  4,  3,  1,  2,  5,  6,
+     9, 13, 13, 13, 13, 13, 13, 14,
+    14,
+};
+
+static const uint16_t t_huffman_env_bal_3_0dB_codes[25] = {
+    0x1ff2, 0x1ff3, 0x1ff4, 0x1ff5, 0x1ff6, 0x1ff7, 0x1ff8, 0x0ff8,
+    0x00fe, 0x007e, 0x000e, 0x0006, 0x0000, 0x0002, 0x001e, 0x003e,
+    0x01fe, 0x1ff9, 0x1ffa, 0x1ffb, 0x1ffc, 0x1ffd, 0x1ffe, 0x3ffe,
+    0x3fff,
+};
+
+static const uint8_t f_huffman_env_bal_3_0dB_bits[25] = {
+    13, 13, 13, 13, 13, 14, 14, 11,
+     8,  7,  4,  2,  1,  3,  5,  6,
+     9, 12, 13, 14, 14, 14, 14, 14,
+    14,
+};
+
+static const uint16_t f_huffman_env_bal_3_0dB_codes[25] = {
+    0x1ff7, 0x1ff8, 0x1ff9, 0x1ffa, 0x1ffb, 0x3ff8, 0x3ff9, 0x07fc,
+    0x00fe, 0x007e, 0x000e, 0x0002, 0x0000, 0x0006, 0x001e, 0x003e,
+    0x01fe, 0x0ffa, 0x1ff6, 0x3ffa, 0x3ffb, 0x3ffc, 0x3ffd, 0x3ffe,
+    0x3fff,
+};
+
+static const uint8_t t_huffman_noise_3_0dB_bits[63] = {
+    13, 13, 13, 13, 13, 13, 13, 13,
+    13, 13, 13, 13, 13, 13, 13, 13,
+    13, 13, 13, 13, 13, 13, 13, 13,
+    13, 13, 11,  8,  6,  4,  3,  1,
+     2,  5,  8, 10, 13, 13, 13, 13,
+    13, 13, 13, 13, 13, 13, 13, 13,
+    13, 13, 13, 13, 13, 13, 13, 13,
+    13, 13, 13, 13, 13, 14, 14,
+};
+
+static const uint16_t t_huffman_noise_3_0dB_codes[63] = {
+    0x1fce, 0x1fcf, 0x1fd0, 0x1fd1, 0x1fd2, 0x1fd3, 0x1fd4, 0x1fd5,
+    0x1fd6, 0x1fd7, 0x1fd8, 0x1fd9, 0x1fda, 0x1fdb, 0x1fdc, 0x1fdd,
+    0x1fde, 0x1fdf, 0x1fe0, 0x1fe1, 0x1fe2, 0x1fe3, 0x1fe4, 0x1fe5,
+    0x1fe6, 0x1fe7, 0x07f2, 0x00fd, 0x003e, 0x000e, 0x0006, 0x0000,
+    0x0002, 0x001e, 0x00fc, 0x03f8, 0x1fcc, 0x1fe8, 0x1fe9, 0x1fea,
+    0x1feb, 0x1fec, 0x1fcd, 0x1fed, 0x1fee, 0x1fef, 0x1ff0, 0x1ff1,
+    0x1ff2, 0x1ff3, 0x1ff4, 0x1ff5, 0x1ff6, 0x1ff7, 0x1ff8, 0x1ff9,
+    0x1ffa, 0x1ffb, 0x1ffc, 0x1ffd, 0x1ffe, 0x3ffe, 0x3fff,
+};
+
+static const uint8_t t_huffman_noise_bal_3_0dB_bits[25] = {
+    8, 8, 8, 8, 8, 8, 8, 8,
+    8, 8, 5, 2, 1, 3, 6, 8,
+    8, 8, 8, 8, 8, 8, 8, 8,
+    8,
+};
+
+static const uint8_t t_huffman_noise_bal_3_0dB_codes[25] = {
+    0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3,
+    0xf4, 0xf5, 0x1c, 0x02, 0x00, 0x06, 0x3a, 0xf6,
+    0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe,
+    0xff,
+};
+
+static const int8_t sbr_offset[6][16] = {
+    {-8, -7, -6, -5, -4, -3, -2, -1,  0,  1,  2,  3,  4,  5,  6,  7}, //             fs_sbr  = 16000 Hz
+    {-5, -4, -3, -2, -1,  0,  1,  2,  3,  4,  5,  6,  7,  9, 11, 13}, //             fs_sbr  = 22050 Hz
+    {-5, -3, -2, -1,  0,  1,  2,  3,  4,  5,  6,  7,  9, 11, 13, 16}, //             fs_sbr  = 24000 Hz
+    {-6, -4, -2, -1,  0,  1,  2,  3,  4,  5,  6,  7,  9, 11, 13, 16}, //             fs_sbr  = 32000 Hz
+    {-4, -2, -1,  0,  1,  2,  3,  4,  5,  6,  7,  9, 11, 13, 16, 20}, // 44100 Hz <= fs_sbr <= 64000 Hz
+    {-2, -1,  0,  1,  2,  3,  4,  5,  6,  7,  9, 11, 13, 16, 20, 24}, // 64000 Hz <  fs_sbr
+};
+
+/* First eight entries repeated at end to simplify SIMD implementations. */
+const DECLARE_ALIGNED(16, INTFLOAT, AAC_RENAME(ff_sbr_noise_table))[][2] = {
+{Q31(-0.99948153278296f), Q31(-0.59483417516607f)}, {Q31( 0.97113454393991f), Q31(-0.67528515225647f)},
+{Q31( 0.14130051758487f), Q31(-0.95090983575689f)}, {Q31(-0.47005496701697f), Q31(-0.37340549728647f)},
+{Q31( 0.80705063769351f), Q31( 0.29653668284408f)}, {Q31(-0.38981478896926f), Q31( 0.89572605717087f)},
+{Q31(-0.01053049862020f), Q31(-0.66959058036166f)}, {Q31(-0.91266367957293f), Q31(-0.11522938140034f)},
+{Q31( 0.54840422910309f), Q31( 0.75221367176302f)}, {Q31( 0.40009252867955f), Q31(-0.98929400334421f)},
+{Q31(-0.99867974711855f), Q31(-0.88147068645358f)}, {Q31(-0.95531076805040f), Q31( 0.90908757154593f)},
+{Q31(-0.45725933317144f), Q31(-0.56716323646760f)}, {Q31(-0.72929675029275f), Q31(-0.98008272727324f)},
+{Q31( 0.75622801399036f), Q31( 0.20950329995549f)}, {Q31( 0.07069442601050f), Q31(-0.78247898470706f)},
+{Q31( 0.74496252926055f), Q31(-0.91169004445807f)}, {Q31(-0.96440182703856f), Q31(-0.94739918296622f)},
+{Q31( 0.30424629369539f), Q31(-0.49438267012479f)}, {Q31( 0.66565033746925f), Q31( 0.64652935542491f)},
+{Q31( 0.91697008020594f), Q31( 0.17514097332009f)}, {Q31(-0.70774918760427f), Q31( 0.52548653416543f)},
+{Q31(-0.70051415345560f), Q31(-0.45340028808763f)}, {Q31(-0.99496513054797f), Q31(-0.90071908066973f)},
+{Q31( 0.98164490790123f), Q31(-0.77463155528697f)}, {Q31(-0.54671580548181f), Q31(-0.02570928536004f)},
+{Q31(-0.01689629065389f), Q31( 0.00287506445732f)}, {Q31(-0.86110349531986f), Q31( 0.42548583726477f)},
+{Q31(-0.98892980586032f), Q31(-0.87881132267556f)}, {Q31( 0.51756627678691f), Q31( 0.66926784710139f)},
+{Q31(-0.99635026409640f), Q31(-0.58107730574765f)}, {Q31(-0.99969370862163f), Q31( 0.98369989360250f)},
+{Q31( 0.55266258627194f), Q31( 0.59449057465591f)}, {Q31( 0.34581177741673f), Q31( 0.94879421061866f)},
+{Q31( 0.62664209577999f), Q31(-0.74402970906471f)}, {Q31(-0.77149701404973f), Q31(-0.33883658042801f)},
+{Q31(-0.91592244254432f), Q31( 0.03687901376713f)}, {Q31(-0.76285492357887f), Q31(-0.91371867919124f)},
+{Q31( 0.79788337195331f), Q31(-0.93180971199849f)}, {Q31( 0.54473080610200f), Q31(-0.11919206037186f)},
+{Q31(-0.85639281671058f), Q31( 0.42429854760451f)}, {Q31(-0.92882402971423f), Q31( 0.27871809078609f)},
+{Q31(-0.11708371046774f), Q31(-0.99800843444966f)}, {Q31( 0.21356749817493f), Q31(-0.90716295627033f)},
+{Q31(-0.76191692573909f), Q31( 0.99768118356265f)}, {Q31( 0.98111043100884f), Q31(-0.95854459734407f)},
+{Q31(-0.85913269895572f), Q31( 0.95766566168880f)}, {Q31(-0.93307242253692f), Q31( 0.49431757696466f)},
+{Q31( 0.30485754879632f), Q31(-0.70540034357529f)}, {Q31( 0.85289650925190f), Q31( 0.46766131791044f)},
+{Q31( 0.91328082618125f), Q31(-0.99839597361769f)}, {Q31(-0.05890199924154f), Q31( 0.70741827819497f)},
+{Q31( 0.28398686150148f), Q31( 0.34633555702188f)}, {Q31( 0.95258164539612f), Q31(-0.54893416026939f)},
+{Q31(-0.78566324168507f), Q31(-0.75568541079691f)}, {Q31(-0.95789495447877f), Q31(-0.20423194696966f)},
+{Q31( 0.82411158711197f), Q31( 0.96654618432562f)}, {Q31(-0.65185446735885f), Q31(-0.88734990773289f)},
+{Q31(-0.93643603134666f), Q31( 0.99870790442385f)}, {Q31( 0.91427159529618f), Q31(-0.98290505544444f)},
+{Q31(-0.70395684036886f), Q31( 0.58796798221039f)}, {Q31( 0.00563771969365f), Q31( 0.61768196727244f)},
+{Q31( 0.89065051931895f), Q31( 0.52783352697585f)}, {Q31(-0.68683707712762f), Q31( 0.80806944710339f)},
+{Q31( 0.72165342518718f), Q31(-0.69259857349564f)}, {Q31(-0.62928247730667f), Q31( 0.13627037407335f)},
+{Q31( 0.29938434065514f), Q31(-0.46051329682246f)}, {Q31(-0.91781958879280f), Q31(-0.74012716684186f)},
+{Q31( 0.99298717043688f), Q31( 0.40816610075661f)}, {Q31( 0.82368298622748f), Q31(-0.74036047190173f)},
+{Q31(-0.98512833386833f), Q31(-0.99972330709594f)}, {Q31(-0.95915368242257f), Q31(-0.99237800466040f)},
+{Q31(-0.21411126572790f), Q31(-0.93424819052545f)}, {Q31(-0.68821476106884f), Q31(-0.26892306315457f)},
+{Q31( 0.91851997982317f), Q31( 0.09358228901785f)}, {Q31(-0.96062769559127f), Q31( 0.36099095133739f)},
+{Q31( 0.51646184922287f), Q31(-0.71373332873917f)}, {Q31( 0.61130721139669f), Q31( 0.46950141175917f)},
+{Q31( 0.47336129371299f), Q31(-0.27333178296162f)}, {Q31( 0.90998308703519f), Q31( 0.96715662938132f)},
+{Q31( 0.44844799194357f), Q31( 0.99211574628306f)}, {Q31( 0.66614891079092f), Q31( 0.96590176169121f)},
+{Q31( 0.74922239129237f), Q31(-0.89879858826087f)}, {Q31(-0.99571588506485f), Q31( 0.52785521494349f)},
+{Q31( 0.97401082477563f), Q31(-0.16855870075190f)}, {Q31( 0.72683747733879f), Q31(-0.48060774432251f)},
+{Q31( 0.95432193457128f), Q31( 0.68849603408441f)}, {Q31(-0.72962208425191f), Q31(-0.76608443420917f)},
+{Q31(-0.85359479233537f), Q31( 0.88738125901579f)}, {Q31(-0.81412430338535f), Q31(-0.97480768049637f)},
+{Q31(-0.87930772356786f), Q31( 0.74748307690436f)}, {Q31(-0.71573331064977f), Q31(-0.98570608178923f)},
+{Q31( 0.83524300028228f), Q31( 0.83702537075163f)}, {Q31(-0.48086065601423f), Q31(-0.98848504923531f)},
+{Q31( 0.97139128574778f), Q31( 0.80093621198236f)}, {Q31( 0.51992825347895f), Q31( 0.80247631400510f)},
+{Q31(-0.00848591195325f), Q31(-0.76670128000486f)}, {Q31(-0.70294374303036f), Q31( 0.55359910445577f)},
+{Q31(-0.95894428168140f), Q31(-0.43265504344783f)}, {Q31( 0.97079252950321f), Q31( 0.09325857238682f)},
+{Q31(-0.92404293670797f), Q31( 0.85507704027855f)}, {Q31(-0.69506469500450f), Q31( 0.98633412625459f)},
+{Q31( 0.26559203620024f), Q31( 0.73314307966524f)}, {Q31( 0.28038443336943f), Q31( 0.14537913654427f)},
+{Q31(-0.74138124825523f), Q31( 0.99310339807762f)}, {Q31(-0.01752795995444f), Q31(-0.82616635284178f)},
+{Q31(-0.55126773094930f), Q31(-0.98898543862153f)}, {Q31( 0.97960898850996f), Q31(-0.94021446752851f)},
+{Q31(-0.99196309146936f), Q31( 0.67019017358456f)}, {Q31(-0.67684928085260f), Q31( 0.12631491649378f)},
+{Q31( 0.09140039465500f), Q31(-0.20537731453108f)}, {Q31(-0.71658965751996f), Q31(-0.97788200391224f)},
+{Q31( 0.81014640078925f), Q31( 0.53722648362443f)}, {Q31( 0.40616991671205f), Q31(-0.26469008598449f)},
+{Q31(-0.67680188682972f), Q31( 0.94502052337695f)}, {Q31( 0.86849774348749f), Q31(-0.18333598647899f)},
+{Q31(-0.99500381284851f), Q31(-0.02634122068550f)}, {Q31( 0.84329189340667f), Q31( 0.10406957462213f)},
+{Q31(-0.09215968531446f), Q31( 0.69540012101253f)}, {Q31( 0.99956173327206f), Q31(-0.12358542001404f)},
+{Q31(-0.79732779473535f), Q31(-0.91582524736159f)}, {Q31( 0.96349973642406f), Q31( 0.96640458041000f)},
+{Q31(-0.79942778496547f), Q31( 0.64323902822857f)}, {Q31(-0.11566039853896f), Q31( 0.28587846253726f)},
+{Q31(-0.39922954514662f), Q31( 0.94129601616966f)}, {Q31( 0.99089197565987f), Q31(-0.92062625581587f)},
+{Q31( 0.28631285179909f), Q31(-0.91035047143603f)}, {Q31(-0.83302725605608f), Q31(-0.67330410892084f)},
+{Q31( 0.95404443402072f), Q31( 0.49162765398743f)}, {Q31(-0.06449863579434f), Q31( 0.03250560813135f)},
+{Q31(-0.99575054486311f), Q31( 0.42389784469507f)}, {Q31(-0.65501142790847f), Q31( 0.82546114655624f)},
+{Q31(-0.81254441908887f), Q31(-0.51627234660629f)}, {Q31(-0.99646369485481f), Q31( 0.84490533520752f)},
+{Q31( 0.00287840603348f), Q31( 0.64768261158166f)}, {Q31( 0.70176989408455f), Q31(-0.20453028573322f)},
+{Q31( 0.96361882270190f), Q31( 0.40706967140989f)}, {Q31(-0.68883758192426f), Q31( 0.91338958840772f)},
+{Q31(-0.34875585502238f), Q31( 0.71472290693300f)}, {Q31( 0.91980081243087f), Q31( 0.66507455644919f)},
+{Q31(-0.99009048343881f), Q31( 0.85868021604848f)}, {Q31( 0.68865791458395f), Q31( 0.55660316809678f)},
+{Q31(-0.99484402129368f), Q31(-0.20052559254934f)}, {Q31( 0.94214511408023f), Q31(-0.99696425367461f)},
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+{Q31( 0.56721979748394f), Q31(-0.24076836414499f)}, {Q31( 0.46857766746029f), Q31(-0.30140233457198f)},
+{Q31( 0.97312313923635f), Q31(-0.99548191630031f)}, {Q31(-0.38299976567017f), Q31( 0.98516909715427f)},
+{Q31( 0.41025800019463f), Q31( 0.02116736935734f)}, {Q31( 0.09638062008048f), Q31( 0.04411984381457f)},
+{Q31(-0.85283249275397f), Q31( 0.91475563922421f)}, {Q31( 0.88866808958124f), Q31(-0.99735267083226f)},
+{Q31(-0.48202429536989f), Q31(-0.96805608884164f)}, {Q31( 0.27572582416567f), Q31( 0.58634753335832f)},
+{Q31(-0.65889129659168f), Q31( 0.58835634138583f)}, {Q31( 0.98838086953732f), Q31( 0.99994349600236f)},
+{Q31(-0.20651349620689f), Q31( 0.54593044066355f)}, {Q31(-0.62126416356920f), Q31(-0.59893681700392f)},
+{Q31( 0.20320105410437f), Q31(-0.86879180355289f)}, {Q31(-0.97790548600584f), Q31( 0.96290806999242f)},
+{Q31( 0.11112534735126f), Q31( 0.21484763313301f)}, {Q31(-0.41368337314182f), Q31( 0.28216837680365f)},
+{Q31( 0.24133038992960f), Q31( 0.51294362630238f)}, {Q31(-0.66393410674885f), Q31(-0.08249679629081f)},
+{Q31(-0.53697829178752f), Q31(-0.97649903936228f)}, {Q31(-0.97224737889348f), Q31( 0.22081333579837f)},
+{Q31( 0.87392477144549f), Q31(-0.12796173740361f)}, {Q31( 0.19050361015753f), Q31( 0.01602615387195f)},
+{Q31(-0.46353441212724f), Q31(-0.95249041539006f)}, {Q31(-0.07064096339021f), Q31(-0.94479803205886f)},
+{Q31(-0.92444085484466f), Q31(-0.10457590187436f)}, {Q31(-0.83822593578728f), Q31(-0.01695043208885f)},
+{Q31( 0.75214681811150f), Q31(-0.99955681042665f)}, {Q31(-0.42102998829339f), Q31( 0.99720941999394f)},
+{Q31(-0.72094786237696f), Q31(-0.35008961934255f)}, {Q31( 0.78843311019251f), Q31( 0.52851398958271f)},
+{Q31( 0.97394027897442f), Q31(-0.26695944086561f)}, {Q31( 0.99206463477946f), Q31(-0.57010120849429f)},
+{Q31( 0.76789609461795f), Q31(-0.76519356730966f)}, {Q31(-0.82002421836409f), Q31(-0.73530179553767f)},
+{Q31( 0.81924990025724f), Q31( 0.99698425250579f)}, {Q31(-0.26719850873357f), Q31( 0.68903369776193f)},
+{Q31(-0.43311260380975f), Q31( 0.85321815947490f)}, {Q31( 0.99194979673836f), Q31( 0.91876249766422f)},
+{Q31(-0.80692001248487f), Q31(-0.32627540663214f)}, {Q31( 0.43080003649976f), Q31(-0.21919095636638f)},
+{Q31( 0.67709491937357f), Q31(-0.95478075822906f)}, {Q31( 0.56151770568316f), Q31(-0.70693811747778f)},
+{Q31( 0.10831862810749f), Q31(-0.08628837174592f)}, {Q31( 0.91229417540436f), Q31(-0.65987351408410f)},
+{Q31(-0.48972893932274f), Q31( 0.56289246362686f)}, {Q31(-0.89033658689697f), Q31(-0.71656563987082f)},
+{Q31( 0.65269447475094f), Q31( 0.65916004833932f)}, {Q31( 0.67439478141121f), Q31(-0.81684380846796f)},
+{Q31(-0.47770832416973f), Q31(-0.16789556203025f)}, {Q31(-0.99715979260878f), Q31(-0.93565784007648f)},
+{Q31(-0.90889593602546f), Q31( 0.62034397054380f)}, {Q31(-0.06618622548177f), Q31(-0.23812217221359f)},
+{Q31( 0.99430266919728f), Q31( 0.18812555317553f)}, {Q31( 0.97686402381843f), Q31(-0.28664534366620f)},
+{Q31( 0.94813650221268f), Q31(-0.97506640027128f)}, {Q31(-0.95434497492853f), Q31(-0.79607978501983f)},
+{Q31(-0.49104783137150f), Q31( 0.32895214359663f)}, {Q31( 0.99881175120751f), Q31( 0.88993983831354f)},
+{Q31( 0.50449166760303f), Q31(-0.85995072408434f)}, {Q31( 0.47162891065108f), Q31(-0.18680204049569f)},
+{Q31(-0.62081581361840f), Q31( 0.75000676218956f)}, {Q31(-0.43867015250812f), Q31( 0.99998069244322f)},
+{Q31( 0.98630563232075f), Q31(-0.53578899600662f)}, {Q31(-0.61510362277374f), Q31(-0.89515019899997f)},
+{Q31(-0.03841517601843f), Q31(-0.69888815681179f)}, {Q31(-0.30102157304644f), Q31(-0.07667808922205f)},
+{Q31( 0.41881284182683f), Q31( 0.02188098922282f)}, {Q31(-0.86135454941237f), Q31( 0.98947480909359f)},
+{Q31( 0.67226861393788f), Q31(-0.13494389011014f)}, {Q31(-0.70737398842068f), Q31(-0.76547349325992f)},
+{Q31( 0.94044946687963f), Q31( 0.09026201157416f)}, {Q31(-0.82386352534327f), Q31( 0.08924768823676f)},
+{Q31(-0.32070666698656f), Q31( 0.50143421908753f)}, {Q31( 0.57593163224487f), Q31(-0.98966422921509f)},
+{Q31(-0.36326018419965f), Q31( 0.07440243123228f)}, {Q31( 0.99979044674350f), Q31(-0.14130287347405f)},
+{Q31(-0.92366023326932f), Q31(-0.97979298068180f)}, {Q31(-0.44607178518598f), Q31(-0.54233252016394f)},
+{Q31( 0.44226800932956f), Q31( 0.71326756742752f)}, {Q31( 0.03671907158312f), Q31( 0.63606389366675f)},
+{Q31( 0.52175424682195f), Q31(-0.85396826735705f)}, {Q31(-0.94701139690956f), Q31(-0.01826348194255f)},
+{Q31(-0.98759606946049f), Q31( 0.82288714303073f)}, {Q31( 0.87434794743625f), Q31( 0.89399495655433f)},
+{Q31(-0.93412041758744f), Q31( 0.41374052024363f)}, {Q31( 0.96063943315511f), Q31( 0.93116709541280f)},
+{Q31( 0.97534253457837f), Q31( 0.86150930812689f)}, {Q31( 0.99642466504163f), Q31( 0.70190043427512f)},
+{Q31(-0.94705089665984f), Q31(-0.29580042814306f)}, {Q31( 0.91599807087376f), Q31(-0.98147830385781f)},
+// Start of duplicated table
+{Q31(-0.99948153278296f), Q31(-0.59483417516607f)}, {Q31( 0.97113454393991f), Q31(-0.67528515225647f)},
+{Q31( 0.14130051758487f), Q31(-0.95090983575689f)}, {Q31(-0.47005496701697f), Q31(-0.37340549728647f)},
+{Q31( 0.80705063769351f), Q31( 0.29653668284408f)}, {Q31(-0.38981478896926f), Q31( 0.89572605717087f)},
+{Q31(-0.01053049862020f), Q31(-0.66959058036166f)}, {Q31(-0.91266367957293f), Q31(-0.11522938140034f)},
+};
+
+#endif /* AVCODEC_AACSBRDATA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aactab.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aactab.c
new file mode 100644
index 000000000..df551b058
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aactab.c
@@ -0,0 +1,3282 @@
+/*
+ * AAC data
+ * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
+ * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC data
+ * @author Oded Shimon  ( ods15 ods15 dyndns org )
+ * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
+ */
+
+#include "libavutil/mem.h"
+#include "aac.h"
+
+#include <stdint.h>
+
+float ff_aac_pow2sf_tab[428];
+float ff_aac_pow34sf_tab[428];
+
+DECLARE_ALIGNED(32, float,  ff_aac_kbd_long_1024)[1024];
+DECLARE_ALIGNED(32, float,  ff_aac_kbd_short_128)[128];
+DECLARE_ALIGNED(32, float,  ff_aac_kbd_long_960)[960];
+DECLARE_ALIGNED(32, float,  ff_aac_kbd_short_120)[120];
+DECLARE_ALIGNED(32, int,    ff_aac_kbd_long_1024_fixed)[1024];
+DECLARE_ALIGNED(32, int,    ff_aac_kbd_short_128_fixed)[128];
+
+const uint8_t ff_aac_num_swb_1024[] = {
+    41, 41, 47, 49, 49, 51, 47, 47, 43, 43, 43, 40, 40
+};
+
+const uint8_t ff_aac_num_swb_960[] = {
+    40, 40, 46, 49, 49, 49, 46, 46, 42, 42, 42, 40, 40
+};
+
+const uint8_t ff_aac_num_swb_512[] = {
+     0,  0,  0, 36, 36, 37, 31, 31,  0,  0,  0,  0,  0
+};
+
+const uint8_t ff_aac_num_swb_480[] = {
+     0,  0,  0, 35, 35, 37, 30, 30,  0,  0,  0,  0,  0
+};
+
+const uint8_t ff_aac_num_swb_128[] = {
+    12, 12, 12, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15
+};
+
+const uint8_t ff_aac_num_swb_120[] = {
+    12, 12, 12, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15
+};
+
+const uint8_t ff_aac_pred_sfb_max[] = {
+    33, 33, 38, 40, 40, 40, 41, 41, 37, 37, 37, 34, 34
+};
+
+const uint32_t ff_aac_scalefactor_code[121] = {
+    0x3ffe8, 0x3ffe6, 0x3ffe7, 0x3ffe5, 0x7fff5, 0x7fff1, 0x7ffed, 0x7fff6,
+    0x7ffee, 0x7ffef, 0x7fff0, 0x7fffc, 0x7fffd, 0x7ffff, 0x7fffe, 0x7fff7,
+    0x7fff8, 0x7fffb, 0x7fff9, 0x3ffe4, 0x7fffa, 0x3ffe3, 0x1ffef, 0x1fff0,
+    0x0fff5, 0x1ffee, 0x0fff2, 0x0fff3, 0x0fff4, 0x0fff1, 0x07ff6, 0x07ff7,
+    0x03ff9, 0x03ff5, 0x03ff7, 0x03ff3, 0x03ff6, 0x03ff2, 0x01ff7, 0x01ff5,
+    0x00ff9, 0x00ff7, 0x00ff6, 0x007f9, 0x00ff4, 0x007f8, 0x003f9, 0x003f7,
+    0x003f5, 0x001f8, 0x001f7, 0x000fa, 0x000f8, 0x000f6, 0x00079, 0x0003a,
+    0x00038, 0x0001a, 0x0000b, 0x00004, 0x00000, 0x0000a, 0x0000c, 0x0001b,
+    0x00039, 0x0003b, 0x00078, 0x0007a, 0x000f7, 0x000f9, 0x001f6, 0x001f9,
+    0x003f4, 0x003f6, 0x003f8, 0x007f5, 0x007f4, 0x007f6, 0x007f7, 0x00ff5,
+    0x00ff8, 0x01ff4, 0x01ff6, 0x01ff8, 0x03ff8, 0x03ff4, 0x0fff0, 0x07ff4,
+    0x0fff6, 0x07ff5, 0x3ffe2, 0x7ffd9, 0x7ffda, 0x7ffdb, 0x7ffdc, 0x7ffdd,
+    0x7ffde, 0x7ffd8, 0x7ffd2, 0x7ffd3, 0x7ffd4, 0x7ffd5, 0x7ffd6, 0x7fff2,
+    0x7ffdf, 0x7ffe7, 0x7ffe8, 0x7ffe9, 0x7ffea, 0x7ffeb, 0x7ffe6, 0x7ffe0,
+    0x7ffe1, 0x7ffe2, 0x7ffe3, 0x7ffe4, 0x7ffe5, 0x7ffd7, 0x7ffec, 0x7fff4,
+    0x7fff3,
+};
+
+const uint8_t ff_aac_scalefactor_bits[121] = {
+    18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 18, 19, 18, 17, 17, 16, 17, 16, 16, 16, 16, 15, 15,
+    14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 12, 11, 12, 11, 10, 10,
+    10,  9,  9,  8,  8,  8,  7,  6,  6,  5,  4,  3,  1,  4,  4,  5,
+     6,  6,  7,  7,  8,  8,  9,  9, 10, 10, 10, 11, 11, 11, 11, 12,
+    12, 13, 13, 13, 14, 14, 16, 15, 16, 15, 18, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19, 19,
+};
+
+static const uint16_t codes1[81] = {
+    0x7f8, 0x1f1, 0x7fd, 0x3f5, 0x068, 0x3f0, 0x7f7, 0x1ec,
+    0x7f5, 0x3f1, 0x072, 0x3f4, 0x074, 0x011, 0x076, 0x1eb,
+    0x06c, 0x3f6, 0x7fc, 0x1e1, 0x7f1, 0x1f0, 0x061, 0x1f6,
+    0x7f2, 0x1ea, 0x7fb, 0x1f2, 0x069, 0x1ed, 0x077, 0x017,
+    0x06f, 0x1e6, 0x064, 0x1e5, 0x067, 0x015, 0x062, 0x012,
+    0x000, 0x014, 0x065, 0x016, 0x06d, 0x1e9, 0x063, 0x1e4,
+    0x06b, 0x013, 0x071, 0x1e3, 0x070, 0x1f3, 0x7fe, 0x1e7,
+    0x7f3, 0x1ef, 0x060, 0x1ee, 0x7f0, 0x1e2, 0x7fa, 0x3f3,
+    0x06a, 0x1e8, 0x075, 0x010, 0x073, 0x1f4, 0x06e, 0x3f7,
+    0x7f6, 0x1e0, 0x7f9, 0x3f2, 0x066, 0x1f5, 0x7ff, 0x1f7,
+    0x7f4,
+};
+
+static const uint8_t bits1[81] = {
+    11,  9, 11, 10,  7, 10, 11,  9, 11, 10,  7, 10,  7,  5,  7,  9,
+     7, 10, 11,  9, 11,  9,  7,  9, 11,  9, 11,  9,  7,  9,  7,  5,
+     7,  9,  7,  9,  7,  5,  7,  5,  1,  5,  7,  5,  7,  9,  7,  9,
+     7,  5,  7,  9,  7,  9, 11,  9, 11,  9,  7,  9, 11,  9, 11, 10,
+     7,  9,  7,  5,  7,  9,  7, 10, 11,  9, 11, 10,  7,  9, 11,  9,
+    11,
+};
+
+static const uint16_t codes2[81] = {
+    0x1f3, 0x06f, 0x1fd, 0x0eb, 0x023, 0x0ea, 0x1f7, 0x0e8,
+    0x1fa, 0x0f2, 0x02d, 0x070, 0x020, 0x006, 0x02b, 0x06e,
+    0x028, 0x0e9, 0x1f9, 0x066, 0x0f8, 0x0e7, 0x01b, 0x0f1,
+    0x1f4, 0x06b, 0x1f5, 0x0ec, 0x02a, 0x06c, 0x02c, 0x00a,
+    0x027, 0x067, 0x01a, 0x0f5, 0x024, 0x008, 0x01f, 0x009,
+    0x000, 0x007, 0x01d, 0x00b, 0x030, 0x0ef, 0x01c, 0x064,
+    0x01e, 0x00c, 0x029, 0x0f3, 0x02f, 0x0f0, 0x1fc, 0x071,
+    0x1f2, 0x0f4, 0x021, 0x0e6, 0x0f7, 0x068, 0x1f8, 0x0ee,
+    0x022, 0x065, 0x031, 0x002, 0x026, 0x0ed, 0x025, 0x06a,
+    0x1fb, 0x072, 0x1fe, 0x069, 0x02e, 0x0f6, 0x1ff, 0x06d,
+    0x1f6,
+};
+
+static const uint8_t bits2[81] = {
+    9, 7, 9, 8, 6, 8, 9, 8, 9, 8, 6, 7, 6, 5, 6, 7,
+    6, 8, 9, 7, 8, 8, 6, 8, 9, 7, 9, 8, 6, 7, 6, 5,
+    6, 7, 6, 8, 6, 5, 6, 5, 3, 5, 6, 5, 6, 8, 6, 7,
+    6, 5, 6, 8, 6, 8, 9, 7, 9, 8, 6, 8, 8, 7, 9, 8,
+    6, 7, 6, 4, 6, 8, 6, 7, 9, 7, 9, 7, 6, 8, 9, 7,
+    9,
+};
+
+static const uint16_t codes3[81] = {
+    0x0000, 0x0009, 0x00ef, 0x000b, 0x0019, 0x00f0, 0x01eb, 0x01e6,
+    0x03f2, 0x000a, 0x0035, 0x01ef, 0x0034, 0x0037, 0x01e9, 0x01ed,
+    0x01e7, 0x03f3, 0x01ee, 0x03ed, 0x1ffa, 0x01ec, 0x01f2, 0x07f9,
+    0x07f8, 0x03f8, 0x0ff8, 0x0008, 0x0038, 0x03f6, 0x0036, 0x0075,
+    0x03f1, 0x03eb, 0x03ec, 0x0ff4, 0x0018, 0x0076, 0x07f4, 0x0039,
+    0x0074, 0x03ef, 0x01f3, 0x01f4, 0x07f6, 0x01e8, 0x03ea, 0x1ffc,
+    0x00f2, 0x01f1, 0x0ffb, 0x03f5, 0x07f3, 0x0ffc, 0x00ee, 0x03f7,
+    0x7ffe, 0x01f0, 0x07f5, 0x7ffd, 0x1ffb, 0x3ffa, 0xffff, 0x00f1,
+    0x03f0, 0x3ffc, 0x01ea, 0x03ee, 0x3ffb, 0x0ff6, 0x0ffa, 0x7ffc,
+    0x07f2, 0x0ff5, 0xfffe, 0x03f4, 0x07f7, 0x7ffb, 0x0ff7, 0x0ff9,
+    0x7ffa,
+};
+
+static const uint8_t bits3[81] = {
+     1,  4,  8,  4,  5,  8,  9,  9, 10,  4,  6,  9,  6,  6,  9,  9,
+     9, 10,  9, 10, 13,  9,  9, 11, 11, 10, 12,  4,  6, 10,  6,  7,
+    10, 10, 10, 12,  5,  7, 11,  6,  7, 10,  9,  9, 11,  9, 10, 13,
+     8,  9, 12, 10, 11, 12,  8, 10, 15,  9, 11, 15, 13, 14, 16,  8,
+    10, 14,  9, 10, 14, 12, 12, 15, 11, 12, 16, 10, 11, 15, 12, 12,
+    15,
+};
+
+static const uint16_t codes4[81] = {
+    0x007, 0x016, 0x0f6, 0x018, 0x008, 0x0ef, 0x1ef, 0x0f3,
+    0x7f8, 0x019, 0x017, 0x0ed, 0x015, 0x001, 0x0e2, 0x0f0,
+    0x070, 0x3f0, 0x1ee, 0x0f1, 0x7fa, 0x0ee, 0x0e4, 0x3f2,
+    0x7f6, 0x3ef, 0x7fd, 0x005, 0x014, 0x0f2, 0x009, 0x004,
+    0x0e5, 0x0f4, 0x0e8, 0x3f4, 0x006, 0x002, 0x0e7, 0x003,
+    0x000, 0x06b, 0x0e3, 0x069, 0x1f3, 0x0eb, 0x0e6, 0x3f6,
+    0x06e, 0x06a, 0x1f4, 0x3ec, 0x1f0, 0x3f9, 0x0f5, 0x0ec,
+    0x7fb, 0x0ea, 0x06f, 0x3f7, 0x7f9, 0x3f3, 0xfff, 0x0e9,
+    0x06d, 0x3f8, 0x06c, 0x068, 0x1f5, 0x3ee, 0x1f2, 0x7f4,
+    0x7f7, 0x3f1, 0xffe, 0x3ed, 0x1f1, 0x7f5, 0x7fe, 0x3f5,
+    0x7fc,
+};
+
+static const uint8_t bits4[81] = {
+     4,  5,  8,  5,  4,  8,  9,  8, 11,  5,  5,  8,  5,  4,  8,  8,
+     7, 10,  9,  8, 11,  8,  8, 10, 11, 10, 11,  4,  5,  8,  4,  4,
+     8,  8,  8, 10,  4,  4,  8,  4,  4,  7,  8,  7,  9,  8,  8, 10,
+     7,  7,  9, 10,  9, 10,  8,  8, 11,  8,  7, 10, 11, 10, 12,  8,
+     7, 10,  7,  7,  9, 10,  9, 11, 11, 10, 12, 10,  9, 11, 11, 10,
+    11,
+};
+
+static const uint16_t codes5[81] = {
+    0x1fff, 0x0ff7, 0x07f4, 0x07e8, 0x03f1, 0x07ee, 0x07f9, 0x0ff8,
+    0x1ffd, 0x0ffd, 0x07f1, 0x03e8, 0x01e8, 0x00f0, 0x01ec, 0x03ee,
+    0x07f2, 0x0ffa, 0x0ff4, 0x03ef, 0x01f2, 0x00e8, 0x0070, 0x00ec,
+    0x01f0, 0x03ea, 0x07f3, 0x07eb, 0x01eb, 0x00ea, 0x001a, 0x0008,
+    0x0019, 0x00ee, 0x01ef, 0x07ed, 0x03f0, 0x00f2, 0x0073, 0x000b,
+    0x0000, 0x000a, 0x0071, 0x00f3, 0x07e9, 0x07ef, 0x01ee, 0x00ef,
+    0x0018, 0x0009, 0x001b, 0x00eb, 0x01e9, 0x07ec, 0x07f6, 0x03eb,
+    0x01f3, 0x00ed, 0x0072, 0x00e9, 0x01f1, 0x03ed, 0x07f7, 0x0ff6,
+    0x07f0, 0x03e9, 0x01ed, 0x00f1, 0x01ea, 0x03ec, 0x07f8, 0x0ff9,
+    0x1ffc, 0x0ffc, 0x0ff5, 0x07ea, 0x03f3, 0x03f2, 0x07f5, 0x0ffb,
+    0x1ffe,
+};
+
+static const uint8_t bits5[81] = {
+    13, 12, 11, 11, 10, 11, 11, 12, 13, 12, 11, 10,  9,  8,  9, 10,
+    11, 12, 12, 10,  9,  8,  7,  8,  9, 10, 11, 11,  9,  8,  5,  4,
+     5,  8,  9, 11, 10,  8,  7,  4,  1,  4,  7,  8, 11, 11,  9,  8,
+     5,  4,  5,  8,  9, 11, 11, 10,  9,  8,  7,  8,  9, 10, 11, 12,
+    11, 10,  9,  8,  9, 10, 11, 12, 13, 12, 12, 11, 10, 10, 11, 12,
+    13,
+};
+
+static const uint16_t codes6[81] = {
+    0x7fe, 0x3fd, 0x1f1, 0x1eb, 0x1f4, 0x1ea, 0x1f0, 0x3fc,
+    0x7fd, 0x3f6, 0x1e5, 0x0ea, 0x06c, 0x071, 0x068, 0x0f0,
+    0x1e6, 0x3f7, 0x1f3, 0x0ef, 0x032, 0x027, 0x028, 0x026,
+    0x031, 0x0eb, 0x1f7, 0x1e8, 0x06f, 0x02e, 0x008, 0x004,
+    0x006, 0x029, 0x06b, 0x1ee, 0x1ef, 0x072, 0x02d, 0x002,
+    0x000, 0x003, 0x02f, 0x073, 0x1fa, 0x1e7, 0x06e, 0x02b,
+    0x007, 0x001, 0x005, 0x02c, 0x06d, 0x1ec, 0x1f9, 0x0ee,
+    0x030, 0x024, 0x02a, 0x025, 0x033, 0x0ec, 0x1f2, 0x3f8,
+    0x1e4, 0x0ed, 0x06a, 0x070, 0x069, 0x074, 0x0f1, 0x3fa,
+    0x7ff, 0x3f9, 0x1f6, 0x1ed, 0x1f8, 0x1e9, 0x1f5, 0x3fb,
+    0x7fc,
+};
+
+static const uint8_t bits6[81] = {
+    11, 10,  9,  9,  9,  9,  9, 10, 11, 10,  9,  8,  7,  7,  7,  8,
+     9, 10,  9,  8,  6,  6,  6,  6,  6,  8,  9,  9,  7,  6,  4,  4,
+     4,  6,  7,  9,  9,  7,  6,  4,  4,  4,  6,  7,  9,  9,  7,  6,
+     4,  4,  4,  6,  7,  9,  9,  8,  6,  6,  6,  6,  6,  8,  9, 10,
+     9,  8,  7,  7,  7,  7,  8, 10, 11, 10,  9,  9,  9,  9,  9, 10,
+    11,
+};
+
+static const uint16_t codes7[64] = {
+    0x000, 0x005, 0x037, 0x074, 0x0f2, 0x1eb, 0x3ed, 0x7f7,
+    0x004, 0x00c, 0x035, 0x071, 0x0ec, 0x0ee, 0x1ee, 0x1f5,
+    0x036, 0x034, 0x072, 0x0ea, 0x0f1, 0x1e9, 0x1f3, 0x3f5,
+    0x073, 0x070, 0x0eb, 0x0f0, 0x1f1, 0x1f0, 0x3ec, 0x3fa,
+    0x0f3, 0x0ed, 0x1e8, 0x1ef, 0x3ef, 0x3f1, 0x3f9, 0x7fb,
+    0x1ed, 0x0ef, 0x1ea, 0x1f2, 0x3f3, 0x3f8, 0x7f9, 0x7fc,
+    0x3ee, 0x1ec, 0x1f4, 0x3f4, 0x3f7, 0x7f8, 0xffd, 0xffe,
+    0x7f6, 0x3f0, 0x3f2, 0x3f6, 0x7fa, 0x7fd, 0xffc, 0xfff,
+};
+
+static const uint8_t bits7[64] = {
+     1,  3,  6,  7,  8,  9, 10, 11,  3,  4,  6,  7,  8,  8,  9,  9,
+     6,  6,  7,  8,  8,  9,  9, 10,  7,  7,  8,  8,  9,  9, 10, 10,
+     8,  8,  9,  9, 10, 10, 10, 11,  9,  8,  9,  9, 10, 10, 11, 11,
+    10,  9,  9, 10, 10, 11, 12, 12, 11, 10, 10, 10, 11, 11, 12, 12,
+};
+
+static const uint16_t codes8[64] = {
+    0x00e, 0x005, 0x010, 0x030, 0x06f, 0x0f1, 0x1fa, 0x3fe,
+    0x003, 0x000, 0x004, 0x012, 0x02c, 0x06a, 0x075, 0x0f8,
+    0x00f, 0x002, 0x006, 0x014, 0x02e, 0x069, 0x072, 0x0f5,
+    0x02f, 0x011, 0x013, 0x02a, 0x032, 0x06c, 0x0ec, 0x0fa,
+    0x071, 0x02b, 0x02d, 0x031, 0x06d, 0x070, 0x0f2, 0x1f9,
+    0x0ef, 0x068, 0x033, 0x06b, 0x06e, 0x0ee, 0x0f9, 0x3fc,
+    0x1f8, 0x074, 0x073, 0x0ed, 0x0f0, 0x0f6, 0x1f6, 0x1fd,
+    0x3fd, 0x0f3, 0x0f4, 0x0f7, 0x1f7, 0x1fb, 0x1fc, 0x3ff,
+};
+
+static const uint8_t bits8[64] = {
+     5,  4,  5,  6,  7,  8,  9, 10,  4,  3,  4,  5,  6,  7,  7,  8,
+     5,  4,  4,  5,  6,  7,  7,  8,  6,  5,  5,  6,  6,  7,  8,  8,
+     7,  6,  6,  6,  7,  7,  8,  9,  8,  7,  6,  7,  7,  8,  8, 10,
+     9,  7,  7,  8,  8,  8,  9,  9, 10,  8,  8,  8,  9,  9,  9, 10,
+};
+
+static const uint16_t codes9[169] = {
+    0x0000, 0x0005, 0x0037, 0x00e7, 0x01de, 0x03ce, 0x03d9, 0x07c8,
+    0x07cd, 0x0fc8, 0x0fdd, 0x1fe4, 0x1fec, 0x0004, 0x000c, 0x0035,
+    0x0072, 0x00ea, 0x00ed, 0x01e2, 0x03d1, 0x03d3, 0x03e0, 0x07d8,
+    0x0fcf, 0x0fd5, 0x0036, 0x0034, 0x0071, 0x00e8, 0x00ec, 0x01e1,
+    0x03cf, 0x03dd, 0x03db, 0x07d0, 0x0fc7, 0x0fd4, 0x0fe4, 0x00e6,
+    0x0070, 0x00e9, 0x01dd, 0x01e3, 0x03d2, 0x03dc, 0x07cc, 0x07ca,
+    0x07de, 0x0fd8, 0x0fea, 0x1fdb, 0x01df, 0x00eb, 0x01dc, 0x01e6,
+    0x03d5, 0x03de, 0x07cb, 0x07dd, 0x07dc, 0x0fcd, 0x0fe2, 0x0fe7,
+    0x1fe1, 0x03d0, 0x01e0, 0x01e4, 0x03d6, 0x07c5, 0x07d1, 0x07db,
+    0x0fd2, 0x07e0, 0x0fd9, 0x0feb, 0x1fe3, 0x1fe9, 0x07c4, 0x01e5,
+    0x03d7, 0x07c6, 0x07cf, 0x07da, 0x0fcb, 0x0fda, 0x0fe3, 0x0fe9,
+    0x1fe6, 0x1ff3, 0x1ff7, 0x07d3, 0x03d8, 0x03e1, 0x07d4, 0x07d9,
+    0x0fd3, 0x0fde, 0x1fdd, 0x1fd9, 0x1fe2, 0x1fea, 0x1ff1, 0x1ff6,
+    0x07d2, 0x03d4, 0x03da, 0x07c7, 0x07d7, 0x07e2, 0x0fce, 0x0fdb,
+    0x1fd8, 0x1fee, 0x3ff0, 0x1ff4, 0x3ff2, 0x07e1, 0x03df, 0x07c9,
+    0x07d6, 0x0fca, 0x0fd0, 0x0fe5, 0x0fe6, 0x1feb, 0x1fef, 0x3ff3,
+    0x3ff4, 0x3ff5, 0x0fe0, 0x07ce, 0x07d5, 0x0fc6, 0x0fd1, 0x0fe1,
+    0x1fe0, 0x1fe8, 0x1ff0, 0x3ff1, 0x3ff8, 0x3ff6, 0x7ffc, 0x0fe8,
+    0x07df, 0x0fc9, 0x0fd7, 0x0fdc, 0x1fdc, 0x1fdf, 0x1fed, 0x1ff5,
+    0x3ff9, 0x3ffb, 0x7ffd, 0x7ffe, 0x1fe7, 0x0fcc, 0x0fd6, 0x0fdf,
+    0x1fde, 0x1fda, 0x1fe5, 0x1ff2, 0x3ffa, 0x3ff7, 0x3ffc, 0x3ffd,
+    0x7fff,
+};
+
+static const uint8_t bits9[169] = {
+     1,  3,  6,  8,  9, 10, 10, 11, 11, 12, 12, 13, 13,  3,  4,  6,
+     7,  8,  8,  9, 10, 10, 10, 11, 12, 12,  6,  6,  7,  8,  8,  9,
+    10, 10, 10, 11, 12, 12, 12,  8,  7,  8,  9,  9, 10, 10, 11, 11,
+    11, 12, 12, 13,  9,  8,  9,  9, 10, 10, 11, 11, 11, 12, 12, 12,
+    13, 10,  9,  9, 10, 11, 11, 11, 12, 11, 12, 12, 13, 13, 11,  9,
+    10, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 11, 10, 10, 11, 11,
+    12, 12, 13, 13, 13, 13, 13, 13, 11, 10, 10, 11, 11, 11, 12, 12,
+    13, 13, 14, 13, 14, 11, 10, 11, 11, 12, 12, 12, 12, 13, 13, 14,
+    14, 14, 12, 11, 11, 12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 12,
+    11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 15, 15, 13, 12, 12, 12,
+    13, 13, 13, 13, 14, 14, 14, 14, 15,
+};
+
+static const uint16_t codes10[169] = {
+    0x022, 0x008, 0x01d, 0x026, 0x05f, 0x0d3, 0x1cf, 0x3d0,
+    0x3d7, 0x3ed, 0x7f0, 0x7f6, 0xffd, 0x007, 0x000, 0x001,
+    0x009, 0x020, 0x054, 0x060, 0x0d5, 0x0dc, 0x1d4, 0x3cd,
+    0x3de, 0x7e7, 0x01c, 0x002, 0x006, 0x00c, 0x01e, 0x028,
+    0x05b, 0x0cd, 0x0d9, 0x1ce, 0x1dc, 0x3d9, 0x3f1, 0x025,
+    0x00b, 0x00a, 0x00d, 0x024, 0x057, 0x061, 0x0cc, 0x0dd,
+    0x1cc, 0x1de, 0x3d3, 0x3e7, 0x05d, 0x021, 0x01f, 0x023,
+    0x027, 0x059, 0x064, 0x0d8, 0x0df, 0x1d2, 0x1e2, 0x3dd,
+    0x3ee, 0x0d1, 0x055, 0x029, 0x056, 0x058, 0x062, 0x0ce,
+    0x0e0, 0x0e2, 0x1da, 0x3d4, 0x3e3, 0x7eb, 0x1c9, 0x05e,
+    0x05a, 0x05c, 0x063, 0x0ca, 0x0da, 0x1c7, 0x1ca, 0x1e0,
+    0x3db, 0x3e8, 0x7ec, 0x1e3, 0x0d2, 0x0cb, 0x0d0, 0x0d7,
+    0x0db, 0x1c6, 0x1d5, 0x1d8, 0x3ca, 0x3da, 0x7ea, 0x7f1,
+    0x1e1, 0x0d4, 0x0cf, 0x0d6, 0x0de, 0x0e1, 0x1d0, 0x1d6,
+    0x3d1, 0x3d5, 0x3f2, 0x7ee, 0x7fb, 0x3e9, 0x1cd, 0x1c8,
+    0x1cb, 0x1d1, 0x1d7, 0x1df, 0x3cf, 0x3e0, 0x3ef, 0x7e6,
+    0x7f8, 0xffa, 0x3eb, 0x1dd, 0x1d3, 0x1d9, 0x1db, 0x3d2,
+    0x3cc, 0x3dc, 0x3ea, 0x7ed, 0x7f3, 0x7f9, 0xff9, 0x7f2,
+    0x3ce, 0x1e4, 0x3cb, 0x3d8, 0x3d6, 0x3e2, 0x3e5, 0x7e8,
+    0x7f4, 0x7f5, 0x7f7, 0xffb, 0x7fa, 0x3ec, 0x3df, 0x3e1,
+    0x3e4, 0x3e6, 0x3f0, 0x7e9, 0x7ef, 0xff8, 0xffe, 0xffc,
+    0xfff,
+};
+
+static const uint8_t bits10[169] = {
+     6,  5,  6,  6,  7,  8,  9, 10, 10, 10, 11, 11, 12,  5,  4,  4,
+     5,  6,  7,  7,  8,  8,  9, 10, 10, 11,  6,  4,  5,  5,  6,  6,
+     7,  8,  8,  9,  9, 10, 10,  6,  5,  5,  5,  6,  7,  7,  8,  8,
+     9,  9, 10, 10,  7,  6,  6,  6,  6,  7,  7,  8,  8,  9,  9, 10,
+    10,  8,  7,  6,  7,  7,  7,  8,  8,  8,  9, 10, 10, 11,  9,  7,
+     7,  7,  7,  8,  8,  9,  9,  9, 10, 10, 11,  9,  8,  8,  8,  8,
+     8,  9,  9,  9, 10, 10, 11, 11,  9,  8,  8,  8,  8,  8,  9,  9,
+    10, 10, 10, 11, 11, 10,  9,  9,  9,  9,  9,  9, 10, 10, 10, 11,
+    11, 12, 10,  9,  9,  9,  9, 10, 10, 10, 10, 11, 11, 11, 12, 11,
+    10,  9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 12, 11, 10, 10, 10,
+    10, 10, 10, 11, 11, 12, 12, 12, 12,
+};
+
+static const uint16_t codes11[289] = {
+    0x000, 0x006, 0x019, 0x03d, 0x09c, 0x0c6, 0x1a7, 0x390,
+    0x3c2, 0x3df, 0x7e6, 0x7f3, 0xffb, 0x7ec, 0xffa, 0xffe,
+    0x38e, 0x005, 0x001, 0x008, 0x014, 0x037, 0x042, 0x092,
+    0x0af, 0x191, 0x1a5, 0x1b5, 0x39e, 0x3c0, 0x3a2, 0x3cd,
+    0x7d6, 0x0ae, 0x017, 0x007, 0x009, 0x018, 0x039, 0x040,
+    0x08e, 0x0a3, 0x0b8, 0x199, 0x1ac, 0x1c1, 0x3b1, 0x396,
+    0x3be, 0x3ca, 0x09d, 0x03c, 0x015, 0x016, 0x01a, 0x03b,
+    0x044, 0x091, 0x0a5, 0x0be, 0x196, 0x1ae, 0x1b9, 0x3a1,
+    0x391, 0x3a5, 0x3d5, 0x094, 0x09a, 0x036, 0x038, 0x03a,
+    0x041, 0x08c, 0x09b, 0x0b0, 0x0c3, 0x19e, 0x1ab, 0x1bc,
+    0x39f, 0x38f, 0x3a9, 0x3cf, 0x093, 0x0bf, 0x03e, 0x03f,
+    0x043, 0x045, 0x09e, 0x0a7, 0x0b9, 0x194, 0x1a2, 0x1ba,
+    0x1c3, 0x3a6, 0x3a7, 0x3bb, 0x3d4, 0x09f, 0x1a0, 0x08f,
+    0x08d, 0x090, 0x098, 0x0a6, 0x0b6, 0x0c4, 0x19f, 0x1af,
+    0x1bf, 0x399, 0x3bf, 0x3b4, 0x3c9, 0x3e7, 0x0a8, 0x1b6,
+    0x0ab, 0x0a4, 0x0aa, 0x0b2, 0x0c2, 0x0c5, 0x198, 0x1a4,
+    0x1b8, 0x38c, 0x3a4, 0x3c4, 0x3c6, 0x3dd, 0x3e8, 0x0ad,
+    0x3af, 0x192, 0x0bd, 0x0bc, 0x18e, 0x197, 0x19a, 0x1a3,
+    0x1b1, 0x38d, 0x398, 0x3b7, 0x3d3, 0x3d1, 0x3db, 0x7dd,
+    0x0b4, 0x3de, 0x1a9, 0x19b, 0x19c, 0x1a1, 0x1aa, 0x1ad,
+    0x1b3, 0x38b, 0x3b2, 0x3b8, 0x3ce, 0x3e1, 0x3e0, 0x7d2,
+    0x7e5, 0x0b7, 0x7e3, 0x1bb, 0x1a8, 0x1a6, 0x1b0, 0x1b2,
+    0x1b7, 0x39b, 0x39a, 0x3ba, 0x3b5, 0x3d6, 0x7d7, 0x3e4,
+    0x7d8, 0x7ea, 0x0ba, 0x7e8, 0x3a0, 0x1bd, 0x1b4, 0x38a,
+    0x1c4, 0x392, 0x3aa, 0x3b0, 0x3bc, 0x3d7, 0x7d4, 0x7dc,
+    0x7db, 0x7d5, 0x7f0, 0x0c1, 0x7fb, 0x3c8, 0x3a3, 0x395,
+    0x39d, 0x3ac, 0x3ae, 0x3c5, 0x3d8, 0x3e2, 0x3e6, 0x7e4,
+    0x7e7, 0x7e0, 0x7e9, 0x7f7, 0x190, 0x7f2, 0x393, 0x1be,
+    0x1c0, 0x394, 0x397, 0x3ad, 0x3c3, 0x3c1, 0x3d2, 0x7da,
+    0x7d9, 0x7df, 0x7eb, 0x7f4, 0x7fa, 0x195, 0x7f8, 0x3bd,
+    0x39c, 0x3ab, 0x3a8, 0x3b3, 0x3b9, 0x3d0, 0x3e3, 0x3e5,
+    0x7e2, 0x7de, 0x7ed, 0x7f1, 0x7f9, 0x7fc, 0x193, 0xffd,
+    0x3dc, 0x3b6, 0x3c7, 0x3cc, 0x3cb, 0x3d9, 0x3da, 0x7d3,
+    0x7e1, 0x7ee, 0x7ef, 0x7f5, 0x7f6, 0xffc, 0xfff, 0x19d,
+    0x1c2, 0x0b5, 0x0a1, 0x096, 0x097, 0x095, 0x099, 0x0a0,
+    0x0a2, 0x0ac, 0x0a9, 0x0b1, 0x0b3, 0x0bb, 0x0c0, 0x18f,
+    0x004,
+};
+
+static const uint8_t bits11[289] = {
+     4,  5,  6,  7,  8,  8,  9, 10, 10, 10, 11, 11, 12, 11, 12, 12,
+    10,  5,  4,  5,  6,  7,  7,  8,  8,  9,  9,  9, 10, 10, 10, 10,
+    11,  8,  6,  5,  5,  6,  7,  7,  8,  8,  8,  9,  9,  9, 10, 10,
+    10, 10,  8,  7,  6,  6,  6,  7,  7,  8,  8,  8,  9,  9,  9, 10,
+    10, 10, 10,  8,  8,  7,  7,  7,  7,  8,  8,  8,  8,  9,  9,  9,
+    10, 10, 10, 10,  8,  8,  7,  7,  7,  7,  8,  8,  8,  9,  9,  9,
+     9, 10, 10, 10, 10,  8,  9,  8,  8,  8,  8,  8,  8,  8,  9,  9,
+     9, 10, 10, 10, 10, 10,  8,  9,  8,  8,  8,  8,  8,  8,  9,  9,
+     9, 10, 10, 10, 10, 10, 10,  8, 10,  9,  8,  8,  9,  9,  9,  9,
+     9, 10, 10, 10, 10, 10, 10, 11,  8, 10,  9,  9,  9,  9,  9,  9,
+     9, 10, 10, 10, 10, 10, 10, 11, 11,  8, 11,  9,  9,  9,  9,  9,
+     9, 10, 10, 10, 10, 10, 11, 10, 11, 11,  8, 11, 10,  9,  9, 10,
+     9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11,  8, 11, 10, 10, 10,
+    10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11,  9, 11, 10,  9,
+     9, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11,  9, 11, 10,
+    10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11,  9, 12,
+    10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 12, 12,  9,
+     9,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  9,
+     5,
+};
+
+const uint16_t * const ff_aac_spectral_codes[11] = {
+    codes1,  codes2,  codes3, codes4, codes5, codes6, codes7, codes8,
+    codes9, codes10, codes11,
+};
+
+const uint8_t * const ff_aac_spectral_bits[11] = {
+    bits1,  bits2,  bits3, bits4, bits5, bits6, bits7, bits8,
+    bits9, bits10, bits11,
+};
+
+const uint16_t ff_aac_spectral_sizes[11] = {
+    81, 81, 81, 81, 81, 81, 64, 64, 169, 169, 289,
+};
+
+/* NOTE:
+ * 64.0f is a special value indicating the existence of an escape code in the
+ * bitstream.
+ */
+static const DECLARE_ALIGNED(16, float, codebook_vector0)[324] = {
+ -1.0000000, -1.0000000, -1.0000000, -1.0000000,
+ -1.0000000, -1.0000000, -1.0000000,  0.0000000,
+ -1.0000000, -1.0000000, -1.0000000,  1.0000000,
+ -1.0000000, -1.0000000,  0.0000000, -1.0000000,
+ -1.0000000, -1.0000000,  0.0000000,  0.0000000,
+ -1.0000000, -1.0000000,  0.0000000,  1.0000000,
+ -1.0000000, -1.0000000,  1.0000000, -1.0000000,
+ -1.0000000, -1.0000000,  1.0000000,  0.0000000,
+ -1.0000000, -1.0000000,  1.0000000,  1.0000000,
+ -1.0000000,  0.0000000, -1.0000000, -1.0000000,
+ -1.0000000,  0.0000000, -1.0000000,  0.0000000,
+ -1.0000000,  0.0000000, -1.0000000,  1.0000000,
+ -1.0000000,  0.0000000,  0.0000000, -1.0000000,
+ -1.0000000,  0.0000000,  0.0000000,  0.0000000,
+ -1.0000000,  0.0000000,  0.0000000,  1.0000000,
+ -1.0000000,  0.0000000,  1.0000000, -1.0000000,
+ -1.0000000,  0.0000000,  1.0000000,  0.0000000,
+ -1.0000000,  0.0000000,  1.0000000,  1.0000000,
+ -1.0000000,  1.0000000, -1.0000000, -1.0000000,
+ -1.0000000,  1.0000000, -1.0000000,  0.0000000,
+ -1.0000000,  1.0000000, -1.0000000,  1.0000000,
+ -1.0000000,  1.0000000,  0.0000000, -1.0000000,
+ -1.0000000,  1.0000000,  0.0000000,  0.0000000,
+ -1.0000000,  1.0000000,  0.0000000,  1.0000000,
+ -1.0000000,  1.0000000,  1.0000000, -1.0000000,
+ -1.0000000,  1.0000000,  1.0000000,  0.0000000,
+ -1.0000000,  1.0000000,  1.0000000,  1.0000000,
+  0.0000000, -1.0000000, -1.0000000, -1.0000000,
+  0.0000000, -1.0000000, -1.0000000,  0.0000000,
+  0.0000000, -1.0000000, -1.0000000,  1.0000000,
+  0.0000000, -1.0000000,  0.0000000, -1.0000000,
+  0.0000000, -1.0000000,  0.0000000,  0.0000000,
+  0.0000000, -1.0000000,  0.0000000,  1.0000000,
+  0.0000000, -1.0000000,  1.0000000, -1.0000000,
+  0.0000000, -1.0000000,  1.0000000,  0.0000000,
+  0.0000000, -1.0000000,  1.0000000,  1.0000000,
+  0.0000000,  0.0000000, -1.0000000, -1.0000000,
+  0.0000000,  0.0000000, -1.0000000,  0.0000000,
+  0.0000000,  0.0000000, -1.0000000,  1.0000000,
+  0.0000000,  0.0000000,  0.0000000, -1.0000000,
+  0.0000000,  0.0000000,  0.0000000,  0.0000000,
+  0.0000000,  0.0000000,  0.0000000,  1.0000000,
+  0.0000000,  0.0000000,  1.0000000, -1.0000000,
+  0.0000000,  0.0000000,  1.0000000,  0.0000000,
+  0.0000000,  0.0000000,  1.0000000,  1.0000000,
+  0.0000000,  1.0000000, -1.0000000, -1.0000000,
+  0.0000000,  1.0000000, -1.0000000,  0.0000000,
+  0.0000000,  1.0000000, -1.0000000,  1.0000000,
+  0.0000000,  1.0000000,  0.0000000, -1.0000000,
+  0.0000000,  1.0000000,  0.0000000,  0.0000000,
+  0.0000000,  1.0000000,  0.0000000,  1.0000000,
+  0.0000000,  1.0000000,  1.0000000, -1.0000000,
+  0.0000000,  1.0000000,  1.0000000,  0.0000000,
+  0.0000000,  1.0000000,  1.0000000,  1.0000000,
+  1.0000000, -1.0000000, -1.0000000, -1.0000000,
+  1.0000000, -1.0000000, -1.0000000,  0.0000000,
+  1.0000000, -1.0000000, -1.0000000,  1.0000000,
+  1.0000000, -1.0000000,  0.0000000, -1.0000000,
+  1.0000000, -1.0000000,  0.0000000,  0.0000000,
+  1.0000000, -1.0000000,  0.0000000,  1.0000000,
+  1.0000000, -1.0000000,  1.0000000, -1.0000000,
+  1.0000000, -1.0000000,  1.0000000,  0.0000000,
+  1.0000000, -1.0000000,  1.0000000,  1.0000000,
+  1.0000000,  0.0000000, -1.0000000, -1.0000000,
+  1.0000000,  0.0000000, -1.0000000,  0.0000000,
+  1.0000000,  0.0000000, -1.0000000,  1.0000000,
+  1.0000000,  0.0000000,  0.0000000, -1.0000000,
+  1.0000000,  0.0000000,  0.0000000,  0.0000000,
+  1.0000000,  0.0000000,  0.0000000,  1.0000000,
+  1.0000000,  0.0000000,  1.0000000, -1.0000000,
+  1.0000000,  0.0000000,  1.0000000,  0.0000000,
+  1.0000000,  0.0000000,  1.0000000,  1.0000000,
+  1.0000000,  1.0000000, -1.0000000, -1.0000000,
+  1.0000000,  1.0000000, -1.0000000,  0.0000000,
+  1.0000000,  1.0000000, -1.0000000,  1.0000000,
+  1.0000000,  1.0000000,  0.0000000, -1.0000000,
+  1.0000000,  1.0000000,  0.0000000,  0.0000000,
+  1.0000000,  1.0000000,  0.0000000,  1.0000000,
+  1.0000000,  1.0000000,  1.0000000, -1.0000000,
+  1.0000000,  1.0000000,  1.0000000,  0.0000000,
+  1.0000000,  1.0000000,  1.0000000,  1.0000000,
+};
+
+static const DECLARE_ALIGNED(16, float, codebook_vector2)[324] = {
+  0.0000000,  0.0000000,  0.0000000,  0.0000000,
+  0.0000000,  0.0000000,  0.0000000,  1.0000000,
+  0.0000000,  0.0000000,  0.0000000,  2.5198421,
+  0.0000000,  0.0000000,  1.0000000,  0.0000000,
+  0.0000000,  0.0000000,  1.0000000,  1.0000000,
+  0.0000000,  0.0000000,  1.0000000,  2.5198421,
+  0.0000000,  0.0000000,  2.5198421,  0.0000000,
+  0.0000000,  0.0000000,  2.5198421,  1.0000000,
+  0.0000000,  0.0000000,  2.5198421,  2.5198421,
+  0.0000000,  1.0000000,  0.0000000,  0.0000000,
+  0.0000000,  1.0000000,  0.0000000,  1.0000000,
+  0.0000000,  1.0000000,  0.0000000,  2.5198421,
+  0.0000000,  1.0000000,  1.0000000,  0.0000000,
+  0.0000000,  1.0000000,  1.0000000,  1.0000000,
+  0.0000000,  1.0000000,  1.0000000,  2.5198421,
+  0.0000000,  1.0000000,  2.5198421,  0.0000000,
+  0.0000000,  1.0000000,  2.5198421,  1.0000000,
+  0.0000000,  1.0000000,  2.5198421,  2.5198421,
+  0.0000000,  2.5198421,  0.0000000,  0.0000000,
+  0.0000000,  2.5198421,  0.0000000,  1.0000000,
+  0.0000000,  2.5198421,  0.0000000,  2.5198421,
+  0.0000000,  2.5198421,  1.0000000,  0.0000000,
+  0.0000000,  2.5198421,  1.0000000,  1.0000000,
+  0.0000000,  2.5198421,  1.0000000,  2.5198421,
+  0.0000000,  2.5198421,  2.5198421,  0.0000000,
+  0.0000000,  2.5198421,  2.5198421,  1.0000000,
+  0.0000000,  2.5198421,  2.5198421,  2.5198421,
+  1.0000000,  0.0000000,  0.0000000,  0.0000000,
+  1.0000000,  0.0000000,  0.0000000,  1.0000000,
+  1.0000000,  0.0000000,  0.0000000,  2.5198421,
+  1.0000000,  0.0000000,  1.0000000,  0.0000000,
+  1.0000000,  0.0000000,  1.0000000,  1.0000000,
+  1.0000000,  0.0000000,  1.0000000,  2.5198421,
+  1.0000000,  0.0000000,  2.5198421,  0.0000000,
+  1.0000000,  0.0000000,  2.5198421,  1.0000000,
+  1.0000000,  0.0000000,  2.5198421,  2.5198421,
+  1.0000000,  1.0000000,  0.0000000,  0.0000000,
+  1.0000000,  1.0000000,  0.0000000,  1.0000000,
+  1.0000000,  1.0000000,  0.0000000,  2.5198421,
+  1.0000000,  1.0000000,  1.0000000,  0.0000000,
+  1.0000000,  1.0000000,  1.0000000,  1.0000000,
+  1.0000000,  1.0000000,  1.0000000,  2.5198421,
+  1.0000000,  1.0000000,  2.5198421,  0.0000000,
+  1.0000000,  1.0000000,  2.5198421,  1.0000000,
+  1.0000000,  1.0000000,  2.5198421,  2.5198421,
+  1.0000000,  2.5198421,  0.0000000,  0.0000000,
+  1.0000000,  2.5198421,  0.0000000,  1.0000000,
+  1.0000000,  2.5198421,  0.0000000,  2.5198421,
+  1.0000000,  2.5198421,  1.0000000,  0.0000000,
+  1.0000000,  2.5198421,  1.0000000,  1.0000000,
+  1.0000000,  2.5198421,  1.0000000,  2.5198421,
+  1.0000000,  2.5198421,  2.5198421,  0.0000000,
+  1.0000000,  2.5198421,  2.5198421,  1.0000000,
+  1.0000000,  2.5198421,  2.5198421,  2.5198421,
+  2.5198421,  0.0000000,  0.0000000,  0.0000000,
+  2.5198421,  0.0000000,  0.0000000,  1.0000000,
+  2.5198421,  0.0000000,  0.0000000,  2.5198421,
+  2.5198421,  0.0000000,  1.0000000,  0.0000000,
+  2.5198421,  0.0000000,  1.0000000,  1.0000000,
+  2.5198421,  0.0000000,  1.0000000,  2.5198421,
+  2.5198421,  0.0000000,  2.5198421,  0.0000000,
+  2.5198421,  0.0000000,  2.5198421,  1.0000000,
+  2.5198421,  0.0000000,  2.5198421,  2.5198421,
+  2.5198421,  1.0000000,  0.0000000,  0.0000000,
+  2.5198421,  1.0000000,  0.0000000,  1.0000000,
+  2.5198421,  1.0000000,  0.0000000,  2.5198421,
+  2.5198421,  1.0000000,  1.0000000,  0.0000000,
+  2.5198421,  1.0000000,  1.0000000,  1.0000000,
+  2.5198421,  1.0000000,  1.0000000,  2.5198421,
+  2.5198421,  1.0000000,  2.5198421,  0.0000000,
+  2.5198421,  1.0000000,  2.5198421,  1.0000000,
+  2.5198421,  1.0000000,  2.5198421,  2.5198421,
+  2.5198421,  2.5198421,  0.0000000,  0.0000000,
+  2.5198421,  2.5198421,  0.0000000,  1.0000000,
+  2.5198421,  2.5198421,  0.0000000,  2.5198421,
+  2.5198421,  2.5198421,  1.0000000,  0.0000000,
+  2.5198421,  2.5198421,  1.0000000,  1.0000000,
+  2.5198421,  2.5198421,  1.0000000,  2.5198421,
+  2.5198421,  2.5198421,  2.5198421,  0.0000000,
+  2.5198421,  2.5198421,  2.5198421,  1.0000000,
+  2.5198421,  2.5198421,  2.5198421,  2.5198421,
+};
+
+static const DECLARE_ALIGNED(16, float, codebook_vector4)[162] = {
+ -6.3496042, -6.3496042, -6.3496042, -4.3267487,
+ -6.3496042, -2.5198421, -6.3496042, -1.0000000,
+ -6.3496042,  0.0000000, -6.3496042,  1.0000000,
+ -6.3496042,  2.5198421, -6.3496042,  4.3267487,
+ -6.3496042,  6.3496042, -4.3267487, -6.3496042,
+ -4.3267487, -4.3267487, -4.3267487, -2.5198421,
+ -4.3267487, -1.0000000, -4.3267487,  0.0000000,
+ -4.3267487,  1.0000000, -4.3267487,  2.5198421,
+ -4.3267487,  4.3267487, -4.3267487,  6.3496042,
+ -2.5198421, -6.3496042, -2.5198421, -4.3267487,
+ -2.5198421, -2.5198421, -2.5198421, -1.0000000,
+ -2.5198421,  0.0000000, -2.5198421,  1.0000000,
+ -2.5198421,  2.5198421, -2.5198421,  4.3267487,
+ -2.5198421,  6.3496042, -1.0000000, -6.3496042,
+ -1.0000000, -4.3267487, -1.0000000, -2.5198421,
+ -1.0000000, -1.0000000, -1.0000000,  0.0000000,
+ -1.0000000,  1.0000000, -1.0000000,  2.5198421,
+ -1.0000000,  4.3267487, -1.0000000,  6.3496042,
+  0.0000000, -6.3496042,  0.0000000, -4.3267487,
+  0.0000000, -2.5198421,  0.0000000, -1.0000000,
+  0.0000000,  0.0000000,  0.0000000,  1.0000000,
+  0.0000000,  2.5198421,  0.0000000,  4.3267487,
+  0.0000000,  6.3496042,  1.0000000, -6.3496042,
+  1.0000000, -4.3267487,  1.0000000, -2.5198421,
+  1.0000000, -1.0000000,  1.0000000,  0.0000000,
+  1.0000000,  1.0000000,  1.0000000,  2.5198421,
+  1.0000000,  4.3267487,  1.0000000,  6.3496042,
+  2.5198421, -6.3496042,  2.5198421, -4.3267487,
+  2.5198421, -2.5198421,  2.5198421, -1.0000000,
+  2.5198421,  0.0000000,  2.5198421,  1.0000000,
+  2.5198421,  2.5198421,  2.5198421,  4.3267487,
+  2.5198421,  6.3496042,  4.3267487, -6.3496042,
+  4.3267487, -4.3267487,  4.3267487, -2.5198421,
+  4.3267487, -1.0000000,  4.3267487,  0.0000000,
+  4.3267487,  1.0000000,  4.3267487,  2.5198421,
+  4.3267487,  4.3267487,  4.3267487,  6.3496042,
+  6.3496042, -6.3496042,  6.3496042, -4.3267487,
+  6.3496042, -2.5198421,  6.3496042, -1.0000000,
+  6.3496042,  0.0000000,  6.3496042,  1.0000000,
+  6.3496042,  2.5198421,  6.3496042,  4.3267487,
+  6.3496042,  6.3496042,
+};
+
+static const DECLARE_ALIGNED(16, float, codebook_vector6)[128] = {
+  0.0000000,  0.0000000,  0.0000000,  1.0000000,
+  0.0000000,  2.5198421,  0.0000000,  4.3267487,
+  0.0000000,  6.3496042,  0.0000000,  8.5498797,
+  0.0000000, 10.9027236,  0.0000000, 13.3905183,
+  1.0000000,  0.0000000,  1.0000000,  1.0000000,
+  1.0000000,  2.5198421,  1.0000000,  4.3267487,
+  1.0000000,  6.3496042,  1.0000000,  8.5498797,
+  1.0000000, 10.9027236,  1.0000000, 13.3905183,
+  2.5198421,  0.0000000,  2.5198421,  1.0000000,
+  2.5198421,  2.5198421,  2.5198421,  4.3267487,
+  2.5198421,  6.3496042,  2.5198421,  8.5498797,
+  2.5198421, 10.9027236,  2.5198421, 13.3905183,
+  4.3267487,  0.0000000,  4.3267487,  1.0000000,
+  4.3267487,  2.5198421,  4.3267487,  4.3267487,
+  4.3267487,  6.3496042,  4.3267487,  8.5498797,
+  4.3267487, 10.9027236,  4.3267487, 13.3905183,
+  6.3496042,  0.0000000,  6.3496042,  1.0000000,
+  6.3496042,  2.5198421,  6.3496042,  4.3267487,
+  6.3496042,  6.3496042,  6.3496042,  8.5498797,
+  6.3496042, 10.9027236,  6.3496042, 13.3905183,
+  8.5498797,  0.0000000,  8.5498797,  1.0000000,
+  8.5498797,  2.5198421,  8.5498797,  4.3267487,
+  8.5498797,  6.3496042,  8.5498797,  8.5498797,
+  8.5498797, 10.9027236,  8.5498797, 13.3905183,
+ 10.9027236,  0.0000000, 10.9027236,  1.0000000,
+ 10.9027236,  2.5198421, 10.9027236,  4.3267487,
+ 10.9027236,  6.3496042, 10.9027236,  8.5498797,
+ 10.9027236, 10.9027236, 10.9027236, 13.3905183,
+ 13.3905183,  0.0000000, 13.3905183,  1.0000000,
+ 13.3905183,  2.5198421, 13.3905183,  4.3267487,
+ 13.3905183,  6.3496042, 13.3905183,  8.5498797,
+ 13.3905183, 10.9027236, 13.3905183, 13.3905183,
+};
+
+static const DECLARE_ALIGNED(16, float, codebook_vector8)[338] = {
+  0.0000000,  0.0000000,  0.0000000,  1.0000000,
+  0.0000000,  2.5198421,  0.0000000,  4.3267487,
+  0.0000000,  6.3496042,  0.0000000,  8.5498797,
+  0.0000000, 10.9027236,  0.0000000, 13.3905183,
+  0.0000000, 16.0000000,  0.0000000, 18.7207544,
+  0.0000000, 21.5443469,  0.0000000, 24.4637810,
+  0.0000000, 27.4731418,  1.0000000,  0.0000000,
+  1.0000000,  1.0000000,  1.0000000,  2.5198421,
+  1.0000000,  4.3267487,  1.0000000,  6.3496042,
+  1.0000000,  8.5498797,  1.0000000, 10.9027236,
+  1.0000000, 13.3905183,  1.0000000, 16.0000000,
+  1.0000000, 18.7207544,  1.0000000, 21.5443469,
+  1.0000000, 24.4637810,  1.0000000, 27.4731418,
+  2.5198421,  0.0000000,  2.5198421,  1.0000000,
+  2.5198421,  2.5198421,  2.5198421,  4.3267487,
+  2.5198421,  6.3496042,  2.5198421,  8.5498797,
+  2.5198421, 10.9027236,  2.5198421, 13.3905183,
+  2.5198421, 16.0000000,  2.5198421, 18.7207544,
+  2.5198421, 21.5443469,  2.5198421, 24.4637810,
+  2.5198421, 27.4731418,  4.3267487,  0.0000000,
+  4.3267487,  1.0000000,  4.3267487,  2.5198421,
+  4.3267487,  4.3267487,  4.3267487,  6.3496042,
+  4.3267487,  8.5498797,  4.3267487, 10.9027236,
+  4.3267487, 13.3905183,  4.3267487, 16.0000000,
+  4.3267487, 18.7207544,  4.3267487, 21.5443469,
+  4.3267487, 24.4637810,  4.3267487, 27.4731418,
+  6.3496042,  0.0000000,  6.3496042,  1.0000000,
+  6.3496042,  2.5198421,  6.3496042,  4.3267487,
+  6.3496042,  6.3496042,  6.3496042,  8.5498797,
+  6.3496042, 10.9027236,  6.3496042, 13.3905183,
+  6.3496042, 16.0000000,  6.3496042, 18.7207544,
+  6.3496042, 21.5443469,  6.3496042, 24.4637810,
+  6.3496042, 27.4731418,  8.5498797,  0.0000000,
+  8.5498797,  1.0000000,  8.5498797,  2.5198421,
+  8.5498797,  4.3267487,  8.5498797,  6.3496042,
+  8.5498797,  8.5498797,  8.5498797, 10.9027236,
+  8.5498797, 13.3905183,  8.5498797, 16.0000000,
+  8.5498797, 18.7207544,  8.5498797, 21.5443469,
+  8.5498797, 24.4637810,  8.5498797, 27.4731418,
+ 10.9027236,  0.0000000, 10.9027236,  1.0000000,
+ 10.9027236,  2.5198421, 10.9027236,  4.3267487,
+ 10.9027236,  6.3496042, 10.9027236,  8.5498797,
+ 10.9027236, 10.9027236, 10.9027236, 13.3905183,
+ 10.9027236, 16.0000000, 10.9027236, 18.7207544,
+ 10.9027236, 21.5443469, 10.9027236, 24.4637810,
+ 10.9027236, 27.4731418, 13.3905183,  0.0000000,
+ 13.3905183,  1.0000000, 13.3905183,  2.5198421,
+ 13.3905183,  4.3267487, 13.3905183,  6.3496042,
+ 13.3905183,  8.5498797, 13.3905183, 10.9027236,
+ 13.3905183, 13.3905183, 13.3905183, 16.0000000,
+ 13.3905183, 18.7207544, 13.3905183, 21.5443469,
+ 13.3905183, 24.4637810, 13.3905183, 27.4731418,
+ 16.0000000,  0.0000000, 16.0000000,  1.0000000,
+ 16.0000000,  2.5198421, 16.0000000,  4.3267487,
+ 16.0000000,  6.3496042, 16.0000000,  8.5498797,
+ 16.0000000, 10.9027236, 16.0000000, 13.3905183,
+ 16.0000000, 16.0000000, 16.0000000, 18.7207544,
+ 16.0000000, 21.5443469, 16.0000000, 24.4637810,
+ 16.0000000, 27.4731418, 18.7207544,  0.0000000,
+ 18.7207544,  1.0000000, 18.7207544,  2.5198421,
+ 18.7207544,  4.3267487, 18.7207544,  6.3496042,
+ 18.7207544,  8.5498797, 18.7207544, 10.9027236,
+ 18.7207544, 13.3905183, 18.7207544, 16.0000000,
+ 18.7207544, 18.7207544, 18.7207544, 21.5443469,
+ 18.7207544, 24.4637810, 18.7207544, 27.4731418,
+ 21.5443469,  0.0000000, 21.5443469,  1.0000000,
+ 21.5443469,  2.5198421, 21.5443469,  4.3267487,
+ 21.5443469,  6.3496042, 21.5443469,  8.5498797,
+ 21.5443469, 10.9027236, 21.5443469, 13.3905183,
+ 21.5443469, 16.0000000, 21.5443469, 18.7207544,
+ 21.5443469, 21.5443469, 21.5443469, 24.4637810,
+ 21.5443469, 27.4731418, 24.4637810,  0.0000000,
+ 24.4637810,  1.0000000, 24.4637810,  2.5198421,
+ 24.4637810,  4.3267487, 24.4637810,  6.3496042,
+ 24.4637810,  8.5498797, 24.4637810, 10.9027236,
+ 24.4637810, 13.3905183, 24.4637810, 16.0000000,
+ 24.4637810, 18.7207544, 24.4637810, 21.5443469,
+ 24.4637810, 24.4637810, 24.4637810, 27.4731418,
+ 27.4731418,  0.0000000, 27.4731418,  1.0000000,
+ 27.4731418,  2.5198421, 27.4731418,  4.3267487,
+ 27.4731418,  6.3496042, 27.4731418,  8.5498797,
+ 27.4731418, 10.9027236, 27.4731418, 13.3905183,
+ 27.4731418, 16.0000000, 27.4731418, 18.7207544,
+ 27.4731418, 21.5443469, 27.4731418, 24.4637810,
+ 27.4731418, 27.4731418,
+};
+
+static const DECLARE_ALIGNED(16, float, codebook_vector10)[578] = {
+  0.0000000,  0.0000000,  0.0000000,  1.0000000,
+  0.0000000,  2.5198421,  0.0000000,  4.3267487,
+  0.0000000,  6.3496042,  0.0000000,  8.5498797,
+  0.0000000, 10.9027236,  0.0000000, 13.3905183,
+  0.0000000, 16.0000000,  0.0000000, 18.7207544,
+  0.0000000, 21.5443469,  0.0000000, 24.4637810,
+  0.0000000, 27.4731418,  0.0000000, 30.5673509,
+  0.0000000, 33.7419917,  0.0000000, 36.9931811,
+  0.0000000,      64.0f,  1.0000000,  0.0000000,
+  1.0000000,  1.0000000,  1.0000000,  2.5198421,
+  1.0000000,  4.3267487,  1.0000000,  6.3496042,
+  1.0000000,  8.5498797,  1.0000000, 10.9027236,
+  1.0000000, 13.3905183,  1.0000000, 16.0000000,
+  1.0000000, 18.7207544,  1.0000000, 21.5443469,
+  1.0000000, 24.4637810,  1.0000000, 27.4731418,
+  1.0000000, 30.5673509,  1.0000000, 33.7419917,
+  1.0000000, 36.9931811,  1.0000000,      64.0f,
+  2.5198421,  0.0000000,  2.5198421,  1.0000000,
+  2.5198421,  2.5198421,  2.5198421,  4.3267487,
+  2.5198421,  6.3496042,  2.5198421,  8.5498797,
+  2.5198421, 10.9027236,  2.5198421, 13.3905183,
+  2.5198421, 16.0000000,  2.5198421, 18.7207544,
+  2.5198421, 21.5443469,  2.5198421, 24.4637810,
+  2.5198421, 27.4731418,  2.5198421, 30.5673509,
+  2.5198421, 33.7419917,  2.5198421, 36.9931811,
+  2.5198421,      64.0f,  4.3267487,  0.0000000,
+  4.3267487,  1.0000000,  4.3267487,  2.5198421,
+  4.3267487,  4.3267487,  4.3267487,  6.3496042,
+  4.3267487,  8.5498797,  4.3267487, 10.9027236,
+  4.3267487, 13.3905183,  4.3267487, 16.0000000,
+  4.3267487, 18.7207544,  4.3267487, 21.5443469,
+  4.3267487, 24.4637810,  4.3267487, 27.4731418,
+  4.3267487, 30.5673509,  4.3267487, 33.7419917,
+  4.3267487, 36.9931811,  4.3267487,      64.0f,
+  6.3496042,  0.0000000,  6.3496042,  1.0000000,
+  6.3496042,  2.5198421,  6.3496042,  4.3267487,
+  6.3496042,  6.3496042,  6.3496042,  8.5498797,
+  6.3496042, 10.9027236,  6.3496042, 13.3905183,
+  6.3496042, 16.0000000,  6.3496042, 18.7207544,
+  6.3496042, 21.5443469,  6.3496042, 24.4637810,
+  6.3496042, 27.4731418,  6.3496042, 30.5673509,
+  6.3496042, 33.7419917,  6.3496042, 36.9931811,
+  6.3496042,      64.0f,  8.5498797,  0.0000000,
+  8.5498797,  1.0000000,  8.5498797,  2.5198421,
+  8.5498797,  4.3267487,  8.5498797,  6.3496042,
+  8.5498797,  8.5498797,  8.5498797, 10.9027236,
+  8.5498797, 13.3905183,  8.5498797, 16.0000000,
+  8.5498797, 18.7207544,  8.5498797, 21.5443469,
+  8.5498797, 24.4637810,  8.5498797, 27.4731418,
+  8.5498797, 30.5673509,  8.5498797, 33.7419917,
+  8.5498797, 36.9931811,  8.5498797,      64.0f,
+ 10.9027236,  0.0000000, 10.9027236,  1.0000000,
+ 10.9027236,  2.5198421, 10.9027236,  4.3267487,
+ 10.9027236,  6.3496042, 10.9027236,  8.5498797,
+ 10.9027236, 10.9027236, 10.9027236, 13.3905183,
+ 10.9027236, 16.0000000, 10.9027236, 18.7207544,
+ 10.9027236, 21.5443469, 10.9027236, 24.4637810,
+ 10.9027236, 27.4731418, 10.9027236, 30.5673509,
+ 10.9027236, 33.7419917, 10.9027236, 36.9931811,
+ 10.9027236,      64.0f, 13.3905183,  0.0000000,
+ 13.3905183,  1.0000000, 13.3905183,  2.5198421,
+ 13.3905183,  4.3267487, 13.3905183,  6.3496042,
+ 13.3905183,  8.5498797, 13.3905183, 10.9027236,
+ 13.3905183, 13.3905183, 13.3905183, 16.0000000,
+ 13.3905183, 18.7207544, 13.3905183, 21.5443469,
+ 13.3905183, 24.4637810, 13.3905183, 27.4731418,
+ 13.3905183, 30.5673509, 13.3905183, 33.7419917,
+ 13.3905183, 36.9931811, 13.3905183,      64.0f,
+ 16.0000000,  0.0000000, 16.0000000,  1.0000000,
+ 16.0000000,  2.5198421, 16.0000000,  4.3267487,
+ 16.0000000,  6.3496042, 16.0000000,  8.5498797,
+ 16.0000000, 10.9027236, 16.0000000, 13.3905183,
+ 16.0000000, 16.0000000, 16.0000000, 18.7207544,
+ 16.0000000, 21.5443469, 16.0000000, 24.4637810,
+ 16.0000000, 27.4731418, 16.0000000, 30.5673509,
+ 16.0000000, 33.7419917, 16.0000000, 36.9931811,
+ 16.0000000,      64.0f, 18.7207544,  0.0000000,
+ 18.7207544,  1.0000000, 18.7207544,  2.5198421,
+ 18.7207544,  4.3267487, 18.7207544,  6.3496042,
+ 18.7207544,  8.5498797, 18.7207544, 10.9027236,
+ 18.7207544, 13.3905183, 18.7207544, 16.0000000,
+ 18.7207544, 18.7207544, 18.7207544, 21.5443469,
+ 18.7207544, 24.4637810, 18.7207544, 27.4731418,
+ 18.7207544, 30.5673509, 18.7207544, 33.7419917,
+ 18.7207544, 36.9931811, 18.7207544,      64.0f,
+ 21.5443469,  0.0000000, 21.5443469,  1.0000000,
+ 21.5443469,  2.5198421, 21.5443469,  4.3267487,
+ 21.5443469,  6.3496042, 21.5443469,  8.5498797,
+ 21.5443469, 10.9027236, 21.5443469, 13.3905183,
+ 21.5443469, 16.0000000, 21.5443469, 18.7207544,
+ 21.5443469, 21.5443469, 21.5443469, 24.4637810,
+ 21.5443469, 27.4731418, 21.5443469, 30.5673509,
+ 21.5443469, 33.7419917, 21.5443469, 36.9931811,
+ 21.5443469,      64.0f, 24.4637810,  0.0000000,
+ 24.4637810,  1.0000000, 24.4637810,  2.5198421,
+ 24.4637810,  4.3267487, 24.4637810,  6.3496042,
+ 24.4637810,  8.5498797, 24.4637810, 10.9027236,
+ 24.4637810, 13.3905183, 24.4637810, 16.0000000,
+ 24.4637810, 18.7207544, 24.4637810, 21.5443469,
+ 24.4637810, 24.4637810, 24.4637810, 27.4731418,
+ 24.4637810, 30.5673509, 24.4637810, 33.7419917,
+ 24.4637810, 36.9931811, 24.4637810,      64.0f,
+ 27.4731418,  0.0000000, 27.4731418,  1.0000000,
+ 27.4731418,  2.5198421, 27.4731418,  4.3267487,
+ 27.4731418,  6.3496042, 27.4731418,  8.5498797,
+ 27.4731418, 10.9027236, 27.4731418, 13.3905183,
+ 27.4731418, 16.0000000, 27.4731418, 18.7207544,
+ 27.4731418, 21.5443469, 27.4731418, 24.4637810,
+ 27.4731418, 27.4731418, 27.4731418, 30.5673509,
+ 27.4731418, 33.7419917, 27.4731418, 36.9931811,
+ 27.4731418,      64.0f, 30.5673509,  0.0000000,
+ 30.5673509,  1.0000000, 30.5673509,  2.5198421,
+ 30.5673509,  4.3267487, 30.5673509,  6.3496042,
+ 30.5673509,  8.5498797, 30.5673509, 10.9027236,
+ 30.5673509, 13.3905183, 30.5673509, 16.0000000,
+ 30.5673509, 18.7207544, 30.5673509, 21.5443469,
+ 30.5673509, 24.4637810, 30.5673509, 27.4731418,
+ 30.5673509, 30.5673509, 30.5673509, 33.7419917,
+ 30.5673509, 36.9931811, 30.5673509,      64.0f,
+ 33.7419917,  0.0000000, 33.7419917,  1.0000000,
+ 33.7419917,  2.5198421, 33.7419917,  4.3267487,
+ 33.7419917,  6.3496042, 33.7419917,  8.5498797,
+ 33.7419917, 10.9027236, 33.7419917, 13.3905183,
+ 33.7419917, 16.0000000, 33.7419917, 18.7207544,
+ 33.7419917, 21.5443469, 33.7419917, 24.4637810,
+ 33.7419917, 27.4731418, 33.7419917, 30.5673509,
+ 33.7419917, 33.7419917, 33.7419917, 36.9931811,
+ 33.7419917,      64.0f, 36.9931811,  0.0000000,
+ 36.9931811,  1.0000000, 36.9931811,  2.5198421,
+ 36.9931811,  4.3267487, 36.9931811,  6.3496042,
+ 36.9931811,  8.5498797, 36.9931811, 10.9027236,
+ 36.9931811, 13.3905183, 36.9931811, 16.0000000,
+ 36.9931811, 18.7207544, 36.9931811, 21.5443469,
+ 36.9931811, 24.4637810, 36.9931811, 27.4731418,
+ 36.9931811, 30.5673509, 36.9931811, 33.7419917,
+ 36.9931811, 36.9931811, 36.9931811,      64.0f,
+      64.0f,  0.0000000,      64.0f,  1.0000000,
+      64.0f,  2.5198421,      64.0f,  4.3267487,
+      64.0f,  6.3496042,      64.0f,  8.5498797,
+      64.0f, 10.9027236,      64.0f, 13.3905183,
+      64.0f, 16.0000000,      64.0f, 18.7207544,
+      64.0f, 21.5443469,      64.0f, 24.4637810,
+      64.0f, 27.4731418,      64.0f, 30.5673509,
+      64.0f, 33.7419917,      64.0f, 36.9931811,
+      64.0f,      64.0f,
+};
+
+const float * const ff_aac_codebook_vectors[] = {
+    codebook_vector0, codebook_vector0, codebook_vector2,
+    codebook_vector2, codebook_vector4, codebook_vector4,
+    codebook_vector6, codebook_vector6, codebook_vector8,
+    codebook_vector8, codebook_vector10,
+};
+
+static const float codebook_vector0_vals[] = {
+   -1.0000000,  0.0000000,  1.0000000
+};
+
+/*
+ * bits  0:1, 2:3, 4:5, 6:7  index into _vals array
+ *       8:11                number of non-zero values
+ *      12:15                bit mask of non-zero values
+ */
+static const uint16_t codebook_vector02_idx[] = {
+    0x0000, 0x8140, 0x8180, 0x4110, 0xc250, 0xc290, 0x4120, 0xc260, 0xc2a0,
+    0x2104, 0xa244, 0xa284, 0x6214, 0xe354, 0xe394, 0x6224, 0xe364, 0xe3a4,
+    0x2108, 0xa248, 0xa288, 0x6218, 0xe358, 0xe398, 0x6228, 0xe368, 0xe3a8,
+    0x1101, 0x9241, 0x9281, 0x5211, 0xd351, 0xd391, 0x5221, 0xd361, 0xd3a1,
+    0x3205, 0xb345, 0xb385, 0x7315, 0xf455, 0xf495, 0x7325, 0xf465, 0xf4a5,
+    0x3209, 0xb349, 0xb389, 0x7319, 0xf459, 0xf499, 0x7329, 0xf469, 0xf4a9,
+    0x1102, 0x9242, 0x9282, 0x5212, 0xd352, 0xd392, 0x5222, 0xd362, 0xd3a2,
+    0x3206, 0xb346, 0xb386, 0x7316, 0xf456, 0xf496, 0x7326, 0xf466, 0xf4a6,
+    0x320a, 0xb34a, 0xb38a, 0x731a, 0xf45a, 0xf49a, 0x732a, 0xf46a, 0xf4aa,
+};
+
+static const float codebook_vector4_vals[] = {
+   -6.3496042, -4.3267487,
+   -2.5198421, -1.0000000,
+    0.0000000,  1.0000000,
+    2.5198421,  4.3267487,
+    6.3496042,
+};
+
+/*
+ * bits  0:3, 4:7  index into _vals array
+ */
+static const uint16_t codebook_vector4_idx[] = {
+    0x0000, 0x0010, 0x0020, 0x0030, 0x0040, 0x0050, 0x0060, 0x0070, 0x0080,
+    0x0001, 0x0011, 0x0021, 0x0031, 0x0041, 0x0051, 0x0061, 0x0071, 0x0081,
+    0x0002, 0x0012, 0x0022, 0x0032, 0x0042, 0x0052, 0x0062, 0x0072, 0x0082,
+    0x0003, 0x0013, 0x0023, 0x0033, 0x0043, 0x0053, 0x0063, 0x0073, 0x0083,
+    0x0004, 0x0014, 0x0024, 0x0034, 0x0044, 0x0054, 0x0064, 0x0074, 0x0084,
+    0x0005, 0x0015, 0x0025, 0x0035, 0x0045, 0x0055, 0x0065, 0x0075, 0x0085,
+    0x0006, 0x0016, 0x0026, 0x0036, 0x0046, 0x0056, 0x0066, 0x0076, 0x0086,
+    0x0007, 0x0017, 0x0027, 0x0037, 0x0047, 0x0057, 0x0067, 0x0077, 0x0087,
+    0x0008, 0x0018, 0x0028, 0x0038, 0x0048, 0x0058, 0x0068, 0x0078, 0x0088,
+};
+
+/*
+ * bits  0:3, 4:7  index into _vals array
+ *       8:11      number of non-zero values
+ *      12:15      1: only second value non-zero
+ *                 0: other cases
+ */
+static const uint16_t codebook_vector6_idx[] = {
+    0x0000, 0x0110, 0x0120, 0x0130, 0x0140, 0x0150, 0x0160, 0x0170,
+    0x1101, 0x0211, 0x0221, 0x0231, 0x0241, 0x0251, 0x0261, 0x0271,
+    0x1102, 0x0212, 0x0222, 0x0232, 0x0242, 0x0252, 0x0262, 0x0272,
+    0x1103, 0x0213, 0x0223, 0x0233, 0x0243, 0x0253, 0x0263, 0x0273,
+    0x1104, 0x0214, 0x0224, 0x0234, 0x0244, 0x0254, 0x0264, 0x0274,
+    0x1105, 0x0215, 0x0225, 0x0235, 0x0245, 0x0255, 0x0265, 0x0275,
+    0x1106, 0x0216, 0x0226, 0x0236, 0x0246, 0x0256, 0x0266, 0x0276,
+    0x1107, 0x0217, 0x0227, 0x0237, 0x0247, 0x0257, 0x0267, 0x0277,
+};
+
+/*
+ * bits  0:3, 4:7  index into _vals array
+ *       8:11      number of non-zero values
+ *      12:15      1: only second value non-zero
+ *                 0: other cases
+ */
+static const uint16_t codebook_vector8_idx[] = {
+  0x0000, 0x0110, 0x0120, 0x0130, 0x0140, 0x0150, 0x0160,
+  0x0170, 0x0180, 0x0190, 0x01a0, 0x01b0, 0x01c0,
+  0x1101, 0x0211, 0x0221, 0x0231, 0x0241, 0x0251, 0x0261,
+  0x0271, 0x0281, 0x0291, 0x02a1, 0x02b1, 0x02c1,
+  0x1102, 0x0212, 0x0222, 0x0232, 0x0242, 0x0252, 0x0262,
+  0x0272, 0x0282, 0x0292, 0x02a2, 0x02b2, 0x02c2,
+  0x1103, 0x0213, 0x0223, 0x0233, 0x0243, 0x0253, 0x0263,
+  0x0273, 0x0283, 0x0293, 0x02a3, 0x02b3, 0x02c3,
+  0x1104, 0x0214, 0x0224, 0x0234, 0x0244, 0x0254, 0x0264,
+  0x0274, 0x0284, 0x0294, 0x02a4, 0x02b4, 0x02c4,
+  0x1105, 0x0215, 0x0225, 0x0235, 0x0245, 0x0255, 0x0265,
+  0x0275, 0x0285, 0x0295, 0x02a5, 0x02b5, 0x02c5,
+  0x1106, 0x0216, 0x0226, 0x0236, 0x0246, 0x0256, 0x0266,
+  0x0276, 0x0286, 0x0296, 0x02a6, 0x02b6, 0x02c6,
+  0x1107, 0x0217, 0x0227, 0x0237, 0x0247, 0x0257, 0x0267,
+  0x0277, 0x0287, 0x0297, 0x02a7, 0x02b7, 0x02c7,
+  0x1108, 0x0218, 0x0228, 0x0238, 0x0248, 0x0258, 0x0268,
+  0x0278, 0x0288, 0x0298, 0x02a8, 0x02b8, 0x02c8,
+  0x1109, 0x0219, 0x0229, 0x0239, 0x0249, 0x0259, 0x0269,
+  0x0279, 0x0289, 0x0299, 0x02a9, 0x02b9, 0x02c9,
+  0x110a, 0x021a, 0x022a, 0x023a, 0x024a, 0x025a, 0x026a,
+  0x027a, 0x028a, 0x029a, 0x02aa, 0x02ba, 0x02ca,
+  0x110b, 0x021b, 0x022b, 0x023b, 0x024b, 0x025b, 0x026b,
+  0x027b, 0x028b, 0x029b, 0x02ab, 0x02bb, 0x02cb,
+  0x110c, 0x021c, 0x022c, 0x023c, 0x024c, 0x025c, 0x026c,
+  0x027c, 0x028c, 0x029c, 0x02ac, 0x02bc, 0x02cc,
+};
+
+static const float codebook_vector10_vals[] = {
+     0.0000000,  1.0000000,
+     2.5198421,  4.3267487,
+     6.3496042,  8.5498797,
+    10.9027236, 13.3905183,
+    16.0000000, 18.7207544,
+    21.5443469, 24.4637810,
+    27.4731418, 30.5673509,
+    33.7419917, 36.9931811,
+};
+
+/*
+ * bits  0:3, 4:7  index into _vals array
+ *       8:9       bit mask of escape-coded entries
+ *      12:15      number of non-zero values
+ */
+static const uint16_t codebook_vector10_idx[] = {
+    0x0000, 0x1010, 0x1020, 0x1030, 0x1040, 0x1050, 0x1060, 0x1070,
+    0x1080, 0x1090, 0x10a0, 0x10b0, 0x10c0, 0x10d0, 0x10e0, 0x10f0, 0x1200,
+    0x1001, 0x2011, 0x2021, 0x2031, 0x2041, 0x2051, 0x2061, 0x2071,
+    0x2081, 0x2091, 0x20a1, 0x20b1, 0x20c1, 0x20d1, 0x20e1, 0x20f1, 0x2201,
+    0x1002, 0x2012, 0x2022, 0x2032, 0x2042, 0x2052, 0x2062, 0x2072,
+    0x2082, 0x2092, 0x20a2, 0x20b2, 0x20c2, 0x20d2, 0x20e2, 0x20f2, 0x2202,
+    0x1003, 0x2013, 0x2023, 0x2033, 0x2043, 0x2053, 0x2063, 0x2073,
+    0x2083, 0x2093, 0x20a3, 0x20b3, 0x20c3, 0x20d3, 0x20e3, 0x20f3, 0x2203,
+    0x1004, 0x2014, 0x2024, 0x2034, 0x2044, 0x2054, 0x2064, 0x2074,
+    0x2084, 0x2094, 0x20a4, 0x20b4, 0x20c4, 0x20d4, 0x20e4, 0x20f4, 0x2204,
+    0x1005, 0x2015, 0x2025, 0x2035, 0x2045, 0x2055, 0x2065, 0x2075,
+    0x2085, 0x2095, 0x20a5, 0x20b5, 0x20c5, 0x20d5, 0x20e5, 0x20f5, 0x2205,
+    0x1006, 0x2016, 0x2026, 0x2036, 0x2046, 0x2056, 0x2066, 0x2076,
+    0x2086, 0x2096, 0x20a6, 0x20b6, 0x20c6, 0x20d6, 0x20e6, 0x20f6, 0x2206,
+    0x1007, 0x2017, 0x2027, 0x2037, 0x2047, 0x2057, 0x2067, 0x2077,
+    0x2087, 0x2097, 0x20a7, 0x20b7, 0x20c7, 0x20d7, 0x20e7, 0x20f7, 0x2207,
+    0x1008, 0x2018, 0x2028, 0x2038, 0x2048, 0x2058, 0x2068, 0x2078,
+    0x2088, 0x2098, 0x20a8, 0x20b8, 0x20c8, 0x20d8, 0x20e8, 0x20f8, 0x2208,
+    0x1009, 0x2019, 0x2029, 0x2039, 0x2049, 0x2059, 0x2069, 0x2079,
+    0x2089, 0x2099, 0x20a9, 0x20b9, 0x20c9, 0x20d9, 0x20e9, 0x20f9, 0x2209,
+    0x100a, 0x201a, 0x202a, 0x203a, 0x204a, 0x205a, 0x206a, 0x207a,
+    0x208a, 0x209a, 0x20aa, 0x20ba, 0x20ca, 0x20da, 0x20ea, 0x20fa, 0x220a,
+    0x100b, 0x201b, 0x202b, 0x203b, 0x204b, 0x205b, 0x206b, 0x207b,
+    0x208b, 0x209b, 0x20ab, 0x20bb, 0x20cb, 0x20db, 0x20eb, 0x20fb, 0x220b,
+    0x100c, 0x201c, 0x202c, 0x203c, 0x204c, 0x205c, 0x206c, 0x207c,
+    0x208c, 0x209c, 0x20ac, 0x20bc, 0x20cc, 0x20dc, 0x20ec, 0x20fc, 0x220c,
+    0x100d, 0x201d, 0x202d, 0x203d, 0x204d, 0x205d, 0x206d, 0x207d,
+    0x208d, 0x209d, 0x20ad, 0x20bd, 0x20cd, 0x20dd, 0x20ed, 0x20fd, 0x220d,
+    0x100e, 0x201e, 0x202e, 0x203e, 0x204e, 0x205e, 0x206e, 0x207e,
+    0x208e, 0x209e, 0x20ae, 0x20be, 0x20ce, 0x20de, 0x20ee, 0x20fe, 0x220e,
+    0x100f, 0x201f, 0x202f, 0x203f, 0x204f, 0x205f, 0x206f, 0x207f,
+    0x208f, 0x209f, 0x20af, 0x20bf, 0x20cf, 0x20df, 0x20ef, 0x20ff, 0x220f,
+    0x1100, 0x2110, 0x2120, 0x2130, 0x2140, 0x2150, 0x2160, 0x2170,
+    0x2180, 0x2190, 0x21a0, 0x21b0, 0x21c0, 0x21d0, 0x21e0, 0x21f0, 0x2300,
+};
+
+const float *const ff_aac_codebook_vector_vals[] = {
+    codebook_vector0_vals,  codebook_vector0_vals,
+    codebook_vector10_vals, codebook_vector10_vals,
+    codebook_vector4_vals,  codebook_vector4_vals,
+    codebook_vector10_vals, codebook_vector10_vals,
+    codebook_vector10_vals, codebook_vector10_vals,
+    codebook_vector10_vals,
+};
+
+const uint16_t *const ff_aac_codebook_vector_idx[] = {
+    codebook_vector02_idx, codebook_vector02_idx,
+    codebook_vector02_idx, codebook_vector02_idx,
+    codebook_vector4_idx,  codebook_vector4_idx,
+    codebook_vector6_idx,  codebook_vector6_idx,
+    codebook_vector8_idx,  codebook_vector8_idx,
+    codebook_vector10_idx,
+};
+
+/* @name swb_offsets
+ * Sample offset into the window indicating the beginning of a scalefactor
+ * window band
+ *
+ * scalefactor window band - term for scalefactor bands within a window,
+ * given in Table 4.110 to Table 4.128.
+ *
+ * scalefactor band - a set of spectral coefficients which are scaled by one
+ * scalefactor. In case of EIGHT_SHORT_SEQUENCE and grouping a scalefactor band
+ * may contain several scalefactor window bands of corresponding frequency. For
+ * all other window_sequences scalefactor bands and scalefactor window bands are
+ * identical.
+ * @{
+ */
+
+static const uint16_t swb_offset_1024_96[] = {
+      0,   4,   8,  12,  16,  20,  24,  28,
+     32,  36,  40,  44,  48,  52,  56,  64,
+     72,  80,  88,  96, 108, 120, 132, 144,
+    156, 172, 188, 212, 240, 276, 320, 384,
+    448, 512, 576, 640, 704, 768, 832, 896,
+    960, 1024
+};
+
+static const uint16_t swb_offset_128_96[] = {
+    0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 92, 128
+};
+
+static const uint16_t swb_offset_1024_64[] = {
+      0,   4,   8,  12,  16,  20,  24,  28,
+     32,  36,  40,  44,  48,  52,  56,  64,
+     72,  80,  88, 100, 112, 124, 140, 156,
+    172, 192, 216, 240, 268, 304, 344, 384,
+    424, 464, 504, 544, 584, 624, 664, 704,
+    744, 784, 824, 864, 904, 944, 984, 1024
+};
+
+static const uint16_t swb_offset_1024_48[] = {
+      0,   4,   8,  12,  16,  20,  24,  28,
+     32,  36,  40,  48,  56,  64,  72,  80,
+     88,  96, 108, 120, 132, 144, 160, 176,
+    196, 216, 240, 264, 292, 320, 352, 384,
+    416, 448, 480, 512, 544, 576, 608, 640,
+    672, 704, 736, 768, 800, 832, 864, 896,
+    928, 1024
+};
+
+static const uint16_t swb_offset_512_48[] = {
+      0,   4,   8,  12,  16,  20,  24,  28,
+     32,  36,  40,  44,  48,  52,  56,  60,
+     68,  76,  84,  92, 100, 112, 124, 136,
+    148, 164, 184, 208, 236, 268, 300, 332,
+    364, 396, 428, 460, 512
+};
+
+static const uint16_t swb_offset_480_48[] = {
+      0,   4,   8,  12,  16,  20,  24,  28,
+     32,  36,  40,  44,  48,  52,  56,  64,
+     72,  80,  88,  96, 108, 120, 132, 144,
+    156, 172, 188, 212, 240, 272, 304, 336,
+    368, 400, 432, 480
+};
+
+static const uint16_t swb_offset_128_48[] = {
+     0,   4,   8,  12,  16,  20,  28,  36,
+    44,  56,  68,  80,  96, 112, 128
+};
+
+static const uint16_t swb_offset_1024_32[] = {
+      0,   4,   8,  12,  16,  20,  24,  28,
+     32,  36,  40,  48,  56,  64,  72,  80,
+     88,  96, 108, 120, 132, 144, 160, 176,
+    196, 216, 240, 264, 292, 320, 352, 384,
+    416, 448, 480, 512, 544, 576, 608, 640,
+    672, 704, 736, 768, 800, 832, 864, 896,
+    928, 960, 992, 1024
+};
+
+static const uint16_t swb_offset_512_32[] = {
+      0,   4,   8,  12,  16,  20,  24,  28,
+     32,  36,  40,  44,  48,  52,  56,  64,
+     72,  80,  88,  96, 108, 120, 132, 144,
+    160, 176, 192, 212, 236, 260, 288, 320,
+    352, 384, 416, 448, 480, 512
+};
+
+static const uint16_t swb_offset_480_32[] = {
+      0,   4,   8,  12,  16,  20,  24,  28,
+     32,  36,  40,  44,  48,  52,  56,  60,
+     64,  72,  80,  88,  96, 104, 112, 124,
+    136, 148, 164, 180, 200, 224, 256, 288,
+    320, 352, 384, 416, 448, 480
+ };
+
+static const uint16_t swb_offset_1024_24[] = {
+      0,   4,   8,  12,  16,  20,  24,  28,
+     32,  36,  40,  44,  52,  60,  68,  76,
+     84,  92, 100, 108, 116, 124, 136, 148,
+    160, 172, 188, 204, 220, 240, 260, 284,
+    308, 336, 364, 396, 432, 468, 508, 552,
+    600, 652, 704, 768, 832, 896, 960, 1024
+};
+
+static const uint16_t swb_offset_512_24[] = {
+      0,   4,   8,  12,  16,  20,  24,  28,
+     32,  36,  40,  44,  52,  60,  68,  80,
+     92, 104, 120, 140, 164, 192, 224, 256,
+    288, 320, 352, 384, 416, 448, 480, 512,
+};
+
+static const uint16_t swb_offset_480_24[] = {
+      0,   4,   8,  12,  16,  20,  24,  28,
+     32,  36,  40,  44,  52,  60,  68,  80,
+     92, 104, 120, 140, 164, 192, 224, 256,
+    288, 320, 352, 384, 416, 448, 480
+};
+
+static const uint16_t swb_offset_128_24[] = {
+     0,   4,   8,  12,  16,  20,  24,  28,
+    36,  44,  52,  64,  76,  92, 108, 128
+};
+
+static const uint16_t swb_offset_1024_16[] = {
+      0,   8,  16,  24,  32,  40,  48,  56,
+     64,  72,  80,  88, 100, 112, 124, 136,
+    148, 160, 172, 184, 196, 212, 228, 244,
+    260, 280, 300, 320, 344, 368, 396, 424,
+    456, 492, 532, 572, 616, 664, 716, 772,
+    832, 896, 960, 1024
+};
+
+static const uint16_t swb_offset_128_16[] = {
+     0,   4,   8,  12,  16,  20,  24,  28,
+    32,  40,  48,  60,  72,  88, 108, 128
+};
+
+static const uint16_t swb_offset_1024_8[] = {
+      0,  12,  24,  36,  48,  60,  72,  84,
+     96, 108, 120, 132, 144, 156, 172, 188,
+    204, 220, 236, 252, 268, 288, 308, 328,
+    348, 372, 396, 420, 448, 476, 508, 544,
+    580, 620, 664, 712, 764, 820, 880, 944,
+    1024
+};
+
+static const uint16_t swb_offset_128_8[] = {
+     0,   4,   8,  12,  16,  20,  24,  28,
+    36,  44,  52,  60,  72,  88, 108, 128
+};
+
+static const uint16_t swb_offset_960_96[] =
+{
+    0,   4,   8,   12,  16,  20,  24,  28,  32,  36,
+    40,  44,  48,  52,  56,  64,  72,  80,  88,  96,
+    108, 120, 132, 144, 156, 172, 188, 212, 240, 276,
+    320, 384, 448, 512, 576, 640, 704, 768, 832, 896,
+    960
+};
+
+static const uint16_t swb_offset_960_64[] =
+{
+    0,   4,   8,   12,  16,  20,  24,  28,  32,  36,
+    40,  44,  48,  52,  56,  64,  72,  80,  88,  100,
+    112, 124, 140, 156, 172, 192, 216, 240, 268, 304,
+    344, 384, 424, 464, 504, 544, 584, 624, 664, 704,
+    744, 784, 824, 864, 904, 944, 960
+};
+
+static const uint16_t swb_offset_960_48[] =
+{
+    0,   4,   8,   12,  16,  20,  24,  28,  32,  36,
+    40,  48,  56,  64,  72,  80,  88,  96,  108, 120,
+    132, 144, 160, 176, 196, 216, 240, 264, 292, 320,
+    352, 384, 416, 448, 480, 512, 544, 576, 608, 640,
+    672, 704, 736, 768, 800, 832, 864, 896, 928, 960
+};
+
+static const uint16_t swb_offset_960_32[] =
+{
+    0,   4,   8,   12,  16,  20,  24,  28,  32,  36,
+    40,  48,  56,  64,  72,  80,  88,  96,  108, 120,
+    132, 144, 160, 176, 196, 216, 240, 264, 292, 320,
+    352, 384, 416, 448, 480, 512, 544, 576, 608, 640,
+    672, 704, 736, 768, 800, 832, 864, 896, 928, 960
+};
+
+static const uint16_t swb_offset_960_24[] =
+{
+    0,   4,   8,   12,  16,  20,  24,  28,  32,  36,
+    40,  44,  52,  60,  68,  76,  84,  92,  100, 108,
+    116, 124, 136, 148, 160, 172, 188, 204, 220, 240,
+    260, 284, 308, 336, 364, 396, 432, 468, 508, 552,
+    600, 652, 704, 768, 832, 896, 960
+};
+
+static const uint16_t swb_offset_960_16[] =
+{
+    0,   8,   16,  24,  32,  40,  48,  56,  64,  72,
+    80,  88,  100, 112, 124, 136, 148, 160, 172, 184,
+    196, 212, 228, 244, 260, 280, 300, 320, 344, 368,
+    396, 424, 456, 492, 532, 572, 616, 664, 716, 772,
+    832, 896, 960
+};
+
+static const uint16_t swb_offset_960_8[] =
+{
+    0,   12,  24,  36,  48,  60,  72,  84,  96,  108,
+    120, 132, 144, 156, 172, 188, 204, 220, 236, 252,
+    268, 288, 308, 328, 348, 372, 396, 420, 448, 476,
+    508, 544, 580, 620, 664, 712, 764, 820, 880, 944,
+    960
+};
+
+
+static const uint16_t swb_offset_120_96[] =
+{
+    0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 92, 120
+};
+
+static const uint16_t swb_offset_120_64[] =
+{
+    0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 92, 120
+};
+
+static const uint16_t swb_offset_120_48[] =
+{
+    0,  4, 8, 12, 16, 20, 28, 36, 44, 56, 68, 80, 96, 112, 120
+};
+
+static const uint16_t swb_offset_120_24[] =
+{
+    0, 4, 8, 12, 16, 20, 24, 28, 36, 44, 52, 64, 76, 92, 108, 120
+};
+
+static const uint16_t swb_offset_120_16[] =
+{
+    0, 4, 8, 12, 16, 20, 24, 28, 32, 40, 48, 60, 72, 88, 108, 120
+};
+
+static const uint16_t swb_offset_120_8[] =
+{
+    0, 4, 8, 12, 16,  20, 24, 28, 36, 44, 52, 60, 72, 88, 108, 120
+};
+
+const uint16_t * const ff_swb_offset_1024[] = {
+    swb_offset_1024_96, swb_offset_1024_96, swb_offset_1024_64,
+    swb_offset_1024_48, swb_offset_1024_48, swb_offset_1024_32,
+    swb_offset_1024_24, swb_offset_1024_24, swb_offset_1024_16,
+    swb_offset_1024_16, swb_offset_1024_16, swb_offset_1024_8,
+    swb_offset_1024_8
+};
+
+const uint16_t * const ff_swb_offset_960[] = {
+    swb_offset_960_96, swb_offset_960_96, swb_offset_960_64,
+    swb_offset_960_48, swb_offset_960_48, swb_offset_960_32,
+    swb_offset_960_24, swb_offset_960_24, swb_offset_960_16,
+    swb_offset_960_16, swb_offset_960_16, swb_offset_960_8,
+    swb_offset_960_8
+};
+
+const uint16_t * const ff_swb_offset_512[] = {
+    NULL,               NULL,               NULL,
+    swb_offset_512_48,  swb_offset_512_48,  swb_offset_512_32,
+    swb_offset_512_24,  swb_offset_512_24,  NULL,
+    NULL,               NULL,               NULL,
+    NULL
+};
+
+const uint16_t * const ff_swb_offset_480[] = {
+    NULL,               NULL,               NULL,
+    swb_offset_480_48,  swb_offset_480_48,  swb_offset_480_32,
+    swb_offset_480_24,  swb_offset_480_24,  NULL,
+    NULL,               NULL,               NULL,
+    NULL
+};
+
+const uint16_t * const ff_swb_offset_128[] = {
+    /* The last entry on the following row is swb_offset_128_64 but is a
+       duplicate of swb_offset_128_96. */
+    swb_offset_128_96, swb_offset_128_96, swb_offset_128_96,
+    swb_offset_128_48, swb_offset_128_48, swb_offset_128_48,
+    swb_offset_128_24, swb_offset_128_24, swb_offset_128_16,
+    swb_offset_128_16, swb_offset_128_16, swb_offset_128_8,
+    swb_offset_128_8
+};
+
+const uint16_t * const ff_swb_offset_120[] = {
+    swb_offset_120_96, swb_offset_120_96, swb_offset_120_96,
+    swb_offset_120_48, swb_offset_120_48, swb_offset_120_48,
+    swb_offset_120_24, swb_offset_120_24, swb_offset_120_16,
+    swb_offset_120_16, swb_offset_120_16, swb_offset_120_8,
+    swb_offset_120_8
+};
+
+// @}
+
+/* @name ff_tns_max_bands
+ * The maximum number of scalefactor bands on which TNS can operate for the long
+ * and short transforms respectively. The index to these tables is related to
+ * the sample rate of the audio.
+ * @{
+ */
+const uint8_t ff_tns_max_bands_1024[] = {
+    31, 31, 34, 40, 42, 51, 46, 46, 42, 42, 42, 39, 39
+};
+
+const uint8_t ff_tns_max_bands_512[] = {
+    0, 0, 0, 31, 32, 37, 31, 31, 0, 0, 0, 0, 0
+};
+
+const uint8_t ff_tns_max_bands_480[] = {
+    0, 0, 0, 31, 32, 37, 30, 30, 0, 0, 0, 0, 0
+};
+
+const uint8_t ff_tns_max_bands_128[] = {
+    9, 9, 10, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14
+};
+// @}
+
+const DECLARE_ALIGNED(32, float, ff_aac_eld_window_512)[1920] = {
+     0.00338834,  0.00567745,  0.00847677,  0.01172641,
+     0.01532555,  0.01917664,  0.02318809,  0.02729259,
+     0.03144503,  0.03560261,  0.03972499,  0.04379783,
+     0.04783094,  0.05183357,  0.05581342,  0.05977723,
+     0.06373173,  0.06768364,  0.07163937,  0.07559976,
+     0.07956096,  0.08352024,  0.08747623,  0.09143035,
+     0.09538618,  0.09934771,  0.10331917,  0.10730456,
+     0.11130697,  0.11532867,  0.11937133,  0.12343922,
+     0.12753911,  0.13167705,  0.13585812,  0.14008529,
+     0.14435986,  0.14868291,  0.15305531,  0.15747594,
+     0.16194193,  0.16645070,  0.17099991,  0.17558633,
+     0.18020600,  0.18485548,  0.18953191,  0.19423322,
+     0.19895800,  0.20370512,  0.20847374,  0.21326312,
+     0.21807244,  0.22290083,  0.22774742,  0.23261210,
+     0.23749542,  0.24239767,  0.24731889,  0.25225887,
+     0.25721719,  0.26219330,  0.26718648,  0.27219630,
+     0.27722262,  0.28226514,  0.28732336,  0.29239628,
+     0.29748247,  0.30258055,  0.30768914,  0.31280508,
+     0.31792385,  0.32304172,  0.32815579,  0.33326397,
+     0.33836470,  0.34345661,  0.34853868,  0.35361188,
+     0.35867865,  0.36374072,  0.36879900,  0.37385347,
+     0.37890349,  0.38394836,  0.38898730,  0.39401912,
+     0.39904236,  0.40405575,  0.40905820,  0.41404819,
+     0.41902398,  0.42398423,  0.42892805,  0.43385441,
+     0.43876210,  0.44365014,  0.44851786,  0.45336632,
+     0.45819759,  0.46301302,  0.46781309,  0.47259722,
+     0.47736435,  0.48211365,  0.48684450,  0.49155594,
+     0.49624679,  0.50091636,  0.50556440,  0.51019132,
+     0.51479771,  0.51938391,  0.52394998,  0.52849587,
+     0.53302151,  0.53752680,  0.54201160,  0.54647575,
+     0.55091916,  0.55534181,  0.55974376,  0.56412513,
+     0.56848615,  0.57282710,  0.57714834,  0.58145030,
+     0.58492489,  0.58918511,  0.59342326,  0.59763936,
+     0.60183347,  0.60600561,  0.61015581,  0.61428412,
+     0.61839056,  0.62247517,  0.62653799,  0.63057912,
+     0.63459872,  0.63859697,  0.64257403,  0.64653001,
+     0.65046495,  0.65437887,  0.65827181,  0.66214383,
+     0.66599499,  0.66982535,  0.67363499,  0.67742394,
+     0.68119219,  0.68493972,  0.68866653,  0.69237258,
+     0.69605778,  0.69972207,  0.70336537,  0.70698758,
+     0.71058862,  0.71416837,  0.71772674,  0.72126361,
+     0.72477889,  0.72827246,  0.73174419,  0.73519392,
+     0.73862141,  0.74202643,  0.74540874,  0.74876817,
+     0.75210458,  0.75541785,  0.75870785,  0.76197437,
+     0.76521709,  0.76843570,  0.77162988,  0.77479939,
+     0.77794403,  0.78106359,  0.78415789,  0.78722670,
+     0.79026979,  0.79328694,  0.79627791,  0.79924244,
+     0.80218027,  0.80509112,  0.80797472,  0.81083081,
+     0.81365915,  0.81645949,  0.81923160,  0.82197528,
+     0.82469037,  0.82737673,  0.83003419,  0.83266262,
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+     0.00427419,  0.00436249,  0.00444858,  0.00453250,
+     0.00461411,  0.00469328,  0.00476988,  0.00484356,
+     0.00491375,  0.00497987,  0.00504139,  0.00509806,
+     0.00514990,  0.00519693,  0.00523920,  0.00527700,
+     0.00531083,  0.00534122,  0.00536864,  0.00539357,
+     0.00541649,  0.00543785,  0.00545809,  0.00547713,
+     0.00549441,  0.00550936,  0.00552146,  0.00553017,
+     0.00553494,  0.00553524,  0.00553058,  0.00552065,
+     0.00550536,  0.00548459,  0.00545828,  0.00542662,
+     0.00539007,  0.00534910,  0.00530415,  0.00525568,
+     0.00520417,  0.00515009,  0.00509387,  0.00503595,
+     0.00497674,  0.00491665,  0.00485605,  0.00479503,
+     0.00473336,  0.00467082,  0.00460721,  0.00454216,
+     0.00447517,  0.00440575,  0.00433344,  0.00425768,
+     0.00417786,  0.00409336,  0.00400363,  0.00390837,
+     0.00380759,  0.00370130,  0.00358952,  0.00347268,
+     0.00335157,  0.00322699,  0.00309975,  0.00297088,
+     0.00284164,  0.00271328,  0.00258700,  0.00246328,
+     0.00234195,  0.00222281,  0.00210562,  0.00198958,
+     0.00187331,  0.00175546,  0.00163474,  0.00151020,
+     0.00138130,  0.00124750,  0.00110831,  0.00096411,
+     0.00081611,  0.00066554,  0.00051363,  0.00036134,
+     0.00020940,  0.00005853, -0.00009058, -0.00023783,
+    -0.00038368, -0.00052861, -0.00067310, -0.00081757,
+    -0.00096237, -0.00110786, -0.00125442, -0.00140210,
+    -0.00155065, -0.00169984, -0.00184940, -0.00199910,
+    -0.00214872, -0.00229798, -0.00244664, -0.00259462,
+    -0.00274205, -0.00288912, -0.00303596, -0.00318259,
+    -0.00332890, -0.00347480, -0.00362024, -0.00376519,
+    -0.00390962, -0.00405345, -0.00419658, -0.00433902,
+    -0.00448085, -0.00462219, -0.00476309, -0.00490357,
+    -0.00504361, -0.00518321, -0.00532243, -0.00546132,
+    -0.00559988, -0.00573811, -0.00587602, -0.00601363,
+    -0.00615094, -0.00628795, -0.00642466, -0.00656111,
+    -0.00669737, -0.00683352, -0.00696963, -0.00710578,
+    -0.00724208, -0.00737862, -0.00751554, -0.00765295,
+    -0.00779098, -0.00792976, -0.00806941, -0.00821006,
+    -0.00835183, -0.00849485, -0.00863926, -0.00878522,
+    -0.00893293, -0.00908260, -0.00923444, -0.00938864,
+    -0.00954537, -0.00970482, -0.00986715, -0.01003173,
+    -0.01019711, -0.01036164, -0.01052357, -0.01068184,
+    -0.01083622, -0.01098652, -0.01113252, -0.01127409,
+    -0.01141114, -0.01154358, -0.01167135, -0.01179439,
+    -0.01191268, -0.01202619, -0.01213493, -0.01223891,
+    -0.01233817, -0.01243275, -0.01252272, -0.01260815,
+    -0.01268915, -0.01276583, -0.01283832, -0.01290685,
+    -0.01297171, -0.01303320, -0.01309168, -0.01314722,
+    -0.01319969, -0.01324889, -0.01329466, -0.01333693,
+    -0.01337577, -0.01341125, -0.01344345, -0.01347243,
+    -0.01349823, -0.01352089, -0.01354045, -0.01355700,
+    -0.01357068, -0.01358164, -0.01359003, -0.01359587,
+    -0.01359901, -0.01359931, -0.01359661, -0.01359087,
+    -0.01358219, -0.01357065, -0.01355637, -0.01353935,
+    -0.01351949, -0.01349670, -0.01347088, -0.01344214,
+    -0.01341078, -0.01337715, -0.01334158, -0.01330442,
+    -0.01326601, -0.01322671, -0.01318689, -0.01314692,
+    -0.01310123, -0.01306470, -0.01302556, -0.01298381,
+    -0.01293948, -0.01289255, -0.01284305, -0.01279095,
+    -0.01273625, -0.01267893, -0.01261897, -0.01255632,
+    -0.01249096, -0.01242283, -0.01235190, -0.01227827,
+    -0.01220213, -0.01212366, -0.01204304, -0.01196032,
+    -0.01187543, -0.01178829, -0.01169884, -0.01160718,
+    -0.01151352, -0.01141809, -0.01132111, -0.01122272,
+    -0.01112304, -0.01102217, -0.01092022, -0.01081730,
+    -0.01071355, -0.01060912, -0.01050411, -0.01039854,
+    -0.01029227, -0.01018521, -0.01007727, -0.00996859,
+    -0.00985959, -0.00975063, -0.00964208, -0.00953420,
+    -0.00942723, -0.00932135, -0.00921677, -0.00911364,
+    -0.00901208, -0.00891220, -0.00881412, -0.00871792,
+    -0.00862369, -0.00853153, -0.00844149, -0.00835360,
+    -0.00826785, -0.00818422, -0.00810267, -0.00802312,
+    -0.00794547, -0.00786959, -0.00779533, -0.00772165,
+    -0.00764673, -0.00756886, -0.00748649, -0.00739905,
+    -0.00730681, -0.00721006, -0.00710910, -0.00700419,
+    -0.00689559, -0.00678354, -0.00666829, -0.00655007,
+    -0.00642916, -0.00630579, -0.00618022, -0.00605267,
+    -0.00592333, -0.00579240, -0.00566006, -0.00552651,
+    -0.00539194, -0.00525653, -0.00512047, -0.00498390,
+    -0.00484693, -0.00470969, -0.00457228, -0.00443482,
+    -0.00429746, -0.00416034, -0.00402359, -0.00388738,
+    -0.00375185, -0.00361718, -0.00348350, -0.00335100,
+    -0.00321991, -0.00309043, -0.00296276, -0.00283698,
+    -0.00271307, -0.00259098, -0.00247066, -0.00235210,
+    -0.00223531, -0.00212030, -0.00200709, -0.00189576,
+    -0.00178647, -0.00167936, -0.00157457, -0.00147216,
+    -0.00137205, -0.00127418, -0.00117849, -0.00108498,
+    -0.00099375, -0.00090486, -0.00081840, -0.00073444,
+    -0.00065309, -0.00057445, -0.00049860, -0.00042551,
+    -0.00035503, -0.00028700, -0.00022125, -0.00015761,
+    -0.00009588, -0.00003583,  0.00002272,  0.00007975,
+     0.00013501,  0.00018828,  0.00023933,  0.00028784,
+     0.00033342,  0.00037572,  0.00041438,  0.00044939,
+     0.00048103,  0.00050958,  0.00053533,  0.00055869,
+     0.00058015,  0.00060022,  0.00061935,  0.00063781,
+     0.00065568,  0.00067303,  0.00068991,  0.00070619,
+     0.00072155,  0.00073567,  0.00074826,  0.00075912,
+     0.00076811,  0.00077509,  0.00077997,  0.00078275,
+     0.00078351,  0.00078237,  0.00077943,  0.00077484,
+     0.00076884,  0.00076160,  0.00075335,  0.00074423,
+     0.00073442,  0.00072404,  0.00071323,  0.00070209,
+     0.00069068,  0.00067906,  0.00066728,  0.00065534,
+     0.00064321,  0.00063086,  0.00061824,  0.00060534,
+     0.00059211,  0.00057855,  0.00056462,  0.00055033,
+     0.00053566,  0.00052063,  0.00050522,  0.00048949,
+     0.00047349,  0.00045728,  0.00044092,  0.00042447,
+     0.00040803,  0.00039166,  0.00037544,  0.00035943,
+     0.00034371,  0.00032833,  0.00031333,  0.00029874,
+     0.00028452,  0.00027067,  0.00025715,  0.00024395,
+     0.00023104,  0.00021842,  0.00020606,  0.00019398,
+     0.00018218,  0.00017069,  0.00015953,  0.00014871,
+     0.00013827,  0.00012823,  0.00011861,  0.00010942,
+     0.00010067,  0.00009236,  0.00008448,  0.00007703,
+     0.00006999,  0.00006337,  0.00005714,  0.00005129,
+     0.00004583,  0.00004072,  0.00003597,  0.00003157,
+     0.00002752,  0.00002380,  0.00002042,  0.00001736,
+     0.00001461,  0.00001215,  0.00000998,  0.00000807,
+     0.00000641,  0.00000499,  0.00000378,  0.00000278,
+     0.00000196,  0.00000132,  0.00000082,  0.00000046,
+     0.00000020,  0.00000005, -0.00000003, -0.00000006,
+    -0.00000004, -0.00000001,  0.00000001,  0.00000001,
+     0.00000001,  0.00000001, -0.00000001, -0.00000004,
+    -0.00000005, -0.00000003,  0.00000005,  0.00000020,
+     0.00000043,  0.00000077,  0.00000123,  0.00000183,
+     0.00000257,  0.00000348,  0.00000455,  0.00000581,
+     0.00000727,  0.00000893,  0.00001080,  0.00001290,
+     0.00001522,  0.00001778,  0.00002057,  0.00002362,
+     0.00002691,  0.00003044,  0.00003422,  0.00003824,
+     0.00004250,  0.00004701,  0.00005176,  0.00005676,
+     0.00006200,  0.00006749,  0.00007322,  0.00007920,
+     0.00008541,  0.00009186,  0.00009854,  0.00010543,
+     0.00011251,  0.00011975,  0.00012714,  0.00013465,
+     0.00014227,  0.00014997,  0.00015775,  0.00016558,
+     0.00017348,  0.00018144,  0.00018947,  0.00019756,
+     0.00020573,  0.00021399,  0.00022233,  0.00023076,
+     0.00023924,  0.00024773,  0.00025621,  0.00026462,
+     0.00027293,  0.00028108,  0.00028904,  0.00029675,
+     0.00030419,  0.00031132,  0.00031810,  0.00032453,
+     0.00033061,  0.00033632,  0.00034169,  0.00034672,
+     0.00035142,  0.00035580,  0.00035988,  0.00036369,
+     0.00036723,  0.00037053,  0.00037361,  0.00037647,
+     0.00037909,  0.00038145,  0.00038352,  0.00038527,
+     0.00038663,  0.00038757,  0.00038801,  0.00038790,
+     0.00038717,  0.00038572,  0.00038350,  0.00038044,
+     0.00037651,  0.00037170,  0.00036597,  0.00035936,
+     0.00035191,  0.00034370,  0.00033480,  0.00032531,
+     0.00031537,  0.00030512,  0.00029470,  0.00028417,
+     0.00027354,  0.00026279,  0.00025191,  0.00024081,
+     0.00022933,  0.00021731,  0.00020458,  0.00019101,
+     0.00017654,  0.00016106,  0.00014452,  0.00012694,
+     0.00010848,  0.00008929,  0.00006953,  0.00004935,
+     0.00002884,  0.00000813, -0.00001268, -0.00003357,
+    -0.00005457, -0.00007574, -0.00009714, -0.00011882,
+    -0.00014082, -0.00016318, -0.00018595, -0.00020912,
+    -0.00023265, -0.00025650, -0.00028060, -0.00030492,
+    -0.00032941, -0.00035400, -0.00037865, -0.00040333,
+    -0.00042804, -0.00045279, -0.00047759, -0.00050243,
+    -0.00052728, -0.00055209, -0.00057685, -0.00060153,
+    -0.00062611, -0.00065056, -0.00067485, -0.00069895,
+    -0.00072287, -0.00074660, -0.00077013, -0.00079345,
+    -0.00081653, -0.00083936, -0.00086192, -0.00088421,
+    -0.00090619, -0.00092786, -0.00094919, -0.00097017,
+    -0.00099077, -0.00101098, -0.00103077, -0.00105012,
+    -0.00106904, -0.00108750, -0.00110549, -0.00112301,
+    -0.00114005, -0.00115660, -0.00117265, -0.00118821,
+    -0.00120325, -0.00121779, -0.00123180, -0.00124528,
+    -0.00125822, -0.00127061, -0.00128243, -0.00129368,
+    -0.00130435, -0.00131445, -0.00132395, -0.00133285,
+    -0.00134113, -0.00134878, -0.00135577, -0.00136215,
+    -0.00136797, -0.00137333, -0.00137834, -0.00138305,
+    -0.00138748, -0.00139163, -0.00139551, -0.00139913,
+    -0.00140249, -0.00140559, -0.00140844, -0.00141102,
+    -0.00141334, -0.00141538, -0.00141714, -0.00141861,
+    -0.00141978, -0.00142064, -0.00142117, -0.00142138,
+    -0.00142125, -0.00142077, -0.00141992, -0.00141870,
+    -0.00141710, -0.00141510, -0.00141268, -0.00140986,
+    -0.00140663, -0.00140301, -0.00139900, -0.00139460,
+    -0.00138981, -0.00138464, -0.00137908, -0.00137313,
+    -0.00136680, -0.00136010, -0.00135301, -0.00134555,
+    -0.00133772, -0.00132952, -0.00132095, -0.00131201,
+    -0.00130272, -0.00129307, -0.00128309, -0.00127277,
+    -0.00126211, -0.00125113, -0.00123981, -0.00122817,
+    -0.00121622, -0.00120397, -0.00119141, -0.00117859,
+    -0.00116552, -0.00115223, -0.00113877, -0.00112517,
+    -0.00111144, -0.00109764, -0.00108377, -0.00106989,
+};
+
+/* Q30 representation of ff_aac_eld_window_512 table */
+const DECLARE_ALIGNED(32, int, ff_aac_eld_window_512_fixed)[1920] = {
+    0x003783ba, 0x005d04f4, 0x008ae226, 0x00c02021,
+    0x00fb1804, 0x013a30a8, 0x017be9e6, 0x01bf296c,
+    0x02033204, 0x0247502c, 0x028adab0, 0x02cd9568,
+    0x030fa980, 0x03513dc0, 0x03927274, 0x03d363e0,
+    0x04142e40, 0x0454edc0, 0x0495bd48, 0x04d6a060,
+    0x051786d8, 0x05586548, 0x059935e8, 0x05d9feb0,
+    0x061acea0, 0x065bb680, 0x069cc800, 0x06de13f0,
+    0x071fa748, 0x07618b80, 0x07a3c7a8, 0x07e66da0,
+    0x082999d0, 0x086d6590, 0x08b1e640, 0x08f72850,
+    0x093d3120, 0x09840550, 0x09cba880, 0x0a1415f0,
+    0x0a5d41b0, 0x0aa720d0, 0x0af1a9a0, 0x0b3cce70,
+    0x0b887ec0, 0x0bd4ac10, 0x0c214a70, 0x0c6e5130,
+    0x0cbbba50, 0x0d098130, 0x0d57a240, 0x0da61a60,
+    0x0df4e620, 0x0e4401d0, 0x0e9369f0, 0x0ee31de0,
+    0x0f332000, 0x0f837180, 0x0fd412a0, 0x10250260,
+    0x10763f20, 0x10c7c660, 0x11199560, 0x116baa00,
+    0x11be0400, 0x1210a1c0, 0x12638180, 0x12b69ee0,
+    0x1309f3e0, 0x135d7ac0, 0x13b12dc0, 0x1404ffa0,
+    0x1458dd40, 0x14acb720, 0x15008120, 0x15543260,
+    0x15a7c460, 0x15fb3160, 0x164e7520, 0x16a193c0,
+    0x16f49740, 0x17478720, 0x179a6720, 0x17ed3720,
+    0x183ff460, 0x18929c20, 0x18e52b00, 0x19379c00,
+    0x1989e900, 0x19dc0ca0, 0x1a2e0280, 0x1a7fc400,
+    0x1ad14a00, 0x1b228ec0, 0x1b738ea0, 0x1bc44540,
+    0x1c14ada0, 0x1c64c380, 0x1cb48440, 0x1d03f420,
+    0x1d531c00, 0x1da20160, 0x1df0a660, 0x1e3f0860,
+    0x1e8d2340, 0x1edaf340, 0x1f2875e0, 0x1f75a700,
+    0x1fc281e0, 0x200f0380, 0x205b2ac0, 0x20a6f980,
+    0x20f27200, 0x213d9600, 0x21886580, 0x21d2e040,
+    0x221d0640, 0x2266d6c0, 0x22b05180, 0x22f97580,
+    0x23424280, 0x238ab880, 0x23d2d780, 0x241aa040,
+    0x246213c0, 0x24a93300, 0x24efff80, 0x25367b40,
+    0x256f68c0, 0x25b53580, 0x25faa580, 0x263fb940,
+    0x26847080, 0x26c8cbc0, 0x270ccb00, 0x27506e40,
+    0x2793b600, 0x27d6a200, 0x281932c0, 0x285b6880,
+    0x289d4400, 0x28dec5c0, 0x291feec0, 0x2960bf80,
+    0x29a137c0, 0x29e15800, 0x2a212000, 0x2a609080,
+    0x2a9fa980, 0x2ade6b40, 0x2b1cd600, 0x2b5aea00,
+    0x2b98a740, 0x2bd60d80, 0x2c131cc0, 0x2c4fd500,
+    0x2c8c3600, 0x2cc83f00, 0x2d03f040, 0x2d3f48c0,
+    0x2d7a48c0, 0x2db4ef40, 0x2def3c40, 0x2e292ec0,
+    0x2e62c700, 0x2e9c0400, 0x2ed4e580, 0x2f0d6ac0,
+    0x2f4592c0, 0x2f7d5c80, 0x2fb4c6c0, 0x2febd140,
+    0x30227b40, 0x3058c400, 0x308eab40, 0x30c43040,
+    0x30f95100, 0x312e0d00, 0x31626240, 0x31965040,
+    0x31c9d5c0, 0x31fcf240, 0x322fa480, 0x3261ec00,
+    0x3293c7c0, 0x32c53680, 0x32f63780, 0x3326c9c0,
+    0x3356ec00, 0x33869d00, 0x33b5db80, 0x33e4a700,
+    0x3412fdc0, 0x3440df40, 0x346e4a80, 0x349b3e40,
+    0x34c7ba00, 0x34f3bd80, 0x351f47c0, 0x354a5840,
+    0x3574ee40, 0x359f0900, 0x35c8a840, 0x35f1cb80,
+    0x361a71c0, 0x36429a80, 0x366a4580, 0x36917280,
+    0x36b82100, 0x36de5180, 0x37040340, 0x372936c0,
+    0x374dec40, 0x37722340, 0x3795dc40, 0x37b91780,
+    0x37dbd600, 0x37fe18c0, 0x381fe080, 0x38412e00,
+    0x38620280, 0x38825f40, 0x38a24540, 0x38c1b680,
+    0x38e0b5c0, 0x38ff4540, 0x391d6800, 0x393b20c0,
+    0x39587280, 0x39755fc0, 0x3991eb80, 0x39ae1a80,
+    0x39c9f280, 0x39e57980, 0x3a00b600, 0x3a1bae00,
+    0x3a366800, 0x3a50e9c0, 0x3a6b3a40, 0x3a8560c0,
+    0x3a9f6640, 0x3ab95400, 0x3ad332c0, 0x3aed0680,
+    0x3b06cf80, 0x3b208d40, 0x3b3a3e80, 0x3b53cb80,
+    0x3b6d0780, 0x3b85c380, 0x3b9dd0c0, 0x3bb4eb40,
+    0x3bcabac0, 0x3bdee680, 0x3bf11680, 0x3c011440,
+    0x3c179ac0, 0x3c1c4f00, 0x3c21aa40, 0x3c278880,
+    0x3c2dba80, 0x3c341140, 0x3c3a5e80, 0x3c409100,
+    0x3c46b480, 0x3c4cd5c0, 0x3c530180, 0x3c593cc0,
+    0x3c5f84c0, 0x3c65d640, 0x3c6c2e40, 0x3c728b40,
+    0x3c78ee80, 0x3c7f5840, 0x3c85c940, 0x3c8c4240,
+    0x3c92c380, 0x3c994cc0, 0x3c9fde40, 0x3ca67880,
+    0x3cad1ac0, 0x3cb3c540, 0x3cba7800, 0x3cc132c0,
+    0x3cc7f640, 0x3ccec280, 0x3cd59800, 0x3cdc76c0,
+    0x3ce35e80, 0x3cea4f00, 0x3cf147c0, 0x3cf84900,
+    0x3cff5340, 0x3d0666c0, 0x3d0d8400, 0x3d14ab40,
+    0x3d1bdc00, 0x3d2315c0, 0x3d2a5880, 0x3d31a440,
+    0x3d38f900, 0x3d405780, 0x3d47c040, 0x3d4f3300,
+    0x3d56af40, 0x3d5e3500, 0x3d65c380, 0x3d6d5ac0,
+    0x3d74fb40, 0x3d7ca540, 0x3d845900, 0x3d8c1680,
+    0x3d93dd00, 0x3d9bac80, 0x3da38400, 0x3dab6400,
+    0x3db34c80, 0x3dbb3dc0, 0x3dc33840, 0x3dcb3bc0,
+    0x3dd347c0, 0x3ddb5bc0, 0x3de37780, 0x3deb9b00,
+    0x3df3c600, 0x3dfbf940, 0x3e0434c0, 0x3e0c7840,
+    0x3e14c3c0, 0x3e1d1640, 0x3e256f80, 0x3e2dcf40,
+    0x3e363580, 0x3e3ea300, 0x3e4717c0, 0x3e4f9380,
+    0x3e581600, 0x3e609e40, 0x3e692c40, 0x3e71bf80,
+    0x3e7a5840, 0x3e82f740, 0x3e8b9c40, 0x3e944700,
+    0x3e9cf780, 0x3ea5ad00, 0x3eae66c0, 0x3eb72500,
+    0x3ebfe780, 0x3ec8af00, 0x3ed17b80, 0x3eda4d00,
+    0x3ee32340, 0x3eebfd40, 0x3ef4dac0, 0x3efdbbc0,
+    0x3f06a040, 0x3f0f88c0, 0x3f187540, 0x3f216600,
+    0x3f2a5a80, 0x3f335200, 0x3f3c4c40, 0x3f454940,
+    0x3f4e4940, 0x3f574c80, 0x3f605340, 0x3f695dc0,
+    0x3f726b40, 0x3f7b7b40, 0x3f848dc0, 0x3f8da240,
+    0x3f96b940, 0x3f9fd300, 0x3fa8f040, 0x3fb21080,
+    0x3fbb33c0, 0x3fc459c0, 0x3fcd81c0, 0x3fd6abc0,
+    0x3fdfd780, 0x3fe90480, 0x3ff23280, 0x3ffb6100,
+    0x40049f80, 0x400dd080, 0x40170400, 0x40203880,
+    0x40296f00, 0x4032a600, 0x403bde00, 0x40451680,
+    0x404e4f00, 0x40578700, 0x4060be80, 0x4069f500,
+    0x40732b80, 0x407c6280, 0x40859980, 0x408ed100,
+    0x40980800, 0x40a13f00, 0x40aa7500, 0x40b3a980,
+    0x40bcdd80, 0x40c61180, 0x40cf4500, 0x40d87800,
+    0x40e1ab00, 0x40eadc80, 0x40f40c80, 0x40fd3a80,
+    0x41066700, 0x410f9300, 0x4118bd80, 0x4121e700,
+    0x412b0f80, 0x41343580, 0x413d5880, 0x41467980,
+    0x414f9780, 0x4158b380, 0x4161cd80, 0x416ae580,
+    0x4173fb00, 0x417d0d00, 0x41861b80, 0x418f2600,
+    0x41982c80, 0x41a12f80, 0x41aa3000, 0x41b32c80,
+    0x41bc2580, 0x41c51a00, 0x41ce0900, 0x41d6f300,
+    0x41dfd800, 0x41e8b880, 0x41f19400, 0x41fa6b80,
+    0x42033d00, 0x420c0900, 0x4214cf00, 0x421d8e00,
+    0x42264680, 0x422ef980, 0x4237a680, 0x42404d80,
+    0x4248ee00, 0x42518780, 0x425a1a00, 0x4262a480,
+    0x426b2800, 0x4273a400, 0x427c1980, 0x42848880,
+    0x428cef80, 0x42954f00, 0x429da680, 0x42a5f500,
+    0x42ae3b80, 0x42b67a00, 0x42beb100, 0x42c6e080,
+    0x42cf0780, 0x42d72680, 0x42df3c00, 0x42e74880,
+    0x42ef4c80, 0x42f74880, 0x42ff3c80, 0x43072880,
+    0x430f0c80, 0x4316e800, 0x431eba00, 0x43268380,
+    0x432e4480, 0x4335fd00, 0x433dae80, 0x43455800,
+    0x434cfa00, 0x43549400, 0x435c2500, 0x4363ad80,
+    0x436b2e00, 0x4372a700, 0x437a1800, 0x43818200,
+    0x4388e400, 0x43903f00, 0x43979200, 0x439edd00,
+    0x43a62080, 0x43ad5c80, 0x43b49180, 0x43bbbf80,
+    0x43c2e800, 0x43ca0b00, 0x43d12980, 0x43d84280,
+    0x43df5200, 0x43e65500, 0x43ed4800, 0x43f43080,
+    0x43fb1c80, 0x44021b80, 0x44093a00, 0x44106480,
+    0x44176700, 0x441e0c00, 0x44241e00, 0x44297380,
+    0x4425dc00, 0x44240180, 0x441ff300, 0x4419e300,
+    0x44123f80, 0x44097500, 0x43ffe900, 0x43f5e700,
+    0x43eb9f00, 0x43e13f00, 0x43d6f200, 0x43ccbd80,
+    0x43c28400, 0x43b82780, 0x43ad8b00, 0x43a29c80,
+    0x43975180, 0x438ba080, 0x437f8180, 0x4372fd00,
+    0x43662b00, 0x43592480, 0x434c0000, 0x433ecd00,
+    0x43319180, 0x43245300, 0x43171700, 0x4309da80,
+    0x42fc9300, 0x42ef3500, 0x42e1b600, 0x42d40280,
+    0x42c60000, 0x42b79300, 0x42a8a180, 0x42991a00,
+    0x4288f200, 0x42782100, 0x42669e00, 0x42546880,
+    0x42418800, 0x422e0480, 0x4219e500, 0x42053680,
+    0x41f00980, 0x41da7080, 0x41c47b00, 0x41ae3600,
+    0x4197ab80, 0x4180e400, 0x4169e780, 0x4152bb00,
+    0x413b5e80, 0x4123d180, 0x410c1480, 0x40f42100,
+    0x40dbed00, 0x40c36c80, 0x40aa9600, 0x40915f80,
+    0x4077c100, 0x405db280, 0x40432c80, 0x40282580,
+    0x400c9280, 0x3ff068c0, 0x3fd39dc0, 0x3fb62bc0,
+    0x3f981200, 0x3f795080, 0x3f59e780, 0x3f39ebc0,
+    0x3f198680, 0x3ef8e100, 0x3ed82440, 0x3eb76c80,
+    0x3e96c940, 0x3e764900, 0x3e55f980, 0x3e35cb00,
+    0x3e1590c0, 0x3df51cc0, 0x3dd44200, 0x3db2e640,
+    0x3d910200, 0x3d6e8e40, 0x3d4b8480, 0x3d27e600,
+    0x3d03bc00, 0x3cdf0fc0, 0x3cb9eb80, 0x3c946240,
+    0x3c6e9180, 0x3c489700, 0x3c229000, 0x3bfc95c0,
+    0x3bd6bd00, 0x3bb11a80, 0x3b8bc180, 0x3b669bc0,
+    0x3b416a00, 0x3b1beb80, 0x3af5e140, 0x3acf3300,
+    0x3aa7ef80, 0x3a802780, 0x3a57eb80, 0x3a2f5880,
+    0x3a069640, 0x39ddcd40, 0x39b524c0, 0x398ca540,
+    0x39643800, 0x393bc540, 0x39133580, 0x38ea7ac0,
+    0x38c19040, 0x389871c0, 0x386f1b40, 0x38458e00,
+    0x381bd000, 0x37f1e780, 0x37c7db00, 0x379db080,
+    0x37736e80, 0x37491b00, 0x371ebcc0, 0x36f45980,
+    0x36c96600, 0x369ed300, 0x36740380, 0x3648ffc0,
+    0x361dcf40, 0x35f27a00, 0x35c70780, 0x359b7f80,
+    0x356fe9c0, 0x35444dc0, 0x3518b280, 0x34ed1940,
+    0x34c17c00, 0x3495d4c0, 0x346a1d40, 0x343e4300,
+    0x34122840, 0x33e5ae00, 0x33b8b780, 0x338b4dc0,
+    0x335d9f00, 0x332fdc00, 0x33023440, 0x32d4cc40,
+    0x32a7bc80, 0x327b1d40, 0x324f04c0, 0x32235280,
+    0x31f7b100, 0x31cbc7c0, 0x319f4140, 0x3171fb40,
+    0x31440840, 0x31157d00, 0x30e66e80, 0x30b6fc40,
+    0x30875080, 0x30579600, 0x3027f700, 0x2ff89140,
+    0x2fc976c0, 0x2f9ab880, 0x2f6c6780, 0x2f3e8780,
+    0x2f111000, 0x2ee3f800, 0x2eb73480, 0x2e8a9840,
+    0x2e5dd340, 0x2e3093c0, 0x2e028ac0, 0x2dd39680,
+    0x2da3c480, 0x2d732380, 0x2d41c400, 0x2d0fd300,
+    0x2cdd9ac0, 0x2cab6640, 0x2c797f00, 0x2c480d40,
+    0x2c171700, 0x2be6a0c0, 0x2bb6ae80, 0x2b8739c0,
+    0x2b583200, 0x2b298600, 0x2afb2400, 0x2accfa40,
+    0x2a9ef500, 0x2a710100, 0x2a430ac0, 0x2a14f9c0,
+    0x29e6b0c0, 0x29b81240, 0x29890140, 0x29596900,
+    0x29293e00, 0x28f87500, 0x28c70340, 0x2894efc0,
+    0x28625140, 0x282f4040, 0x27fbd5c0, 0x27c83540,
+    0x27948ec0, 0x27611240, 0x272def80, 0x26fb4cc0,
+    0x26c94780, 0x2697fcc0, 0x26678880, 0x2637f740,
+    0x26094540, 0x25db6dc0, 0x25ae6b40, 0x25821680,
+    0x255627c0, 0x252a55c0, 0x24fe5680, 0x24d1db40,
+    0x24a48fc0, 0x24761f40, 0x244637c0, 0x2414c900,
+    0x23e20240, 0x23ae1740, 0x23793bc0, 0x2343cc00,
+    0x230e4ac0, 0x22d93c80, 0x22a52400, 0x22725180,
+    0x2240e480, 0x2210f9c0, 0x21e2ab40, 0x21b5c7c0,
+    0x2189d2c0, 0x215e4d40, 0x2132b900, 0x2106ba80,
+    0x20da1940, 0x20ac9d80, 0x207e11c0, 0x204e77c0,
+    0x201e0880, 0x1fecfea0, 0x1fbb94e0, 0x1f8a0500,
+    0x1f59d340, 0x1f27ac20, 0x1ef67c60, 0x1ec64e40,
+    0x1e96fdc0, 0x1e686400, 0x1e3a5a00, 0x1e0cae80,
+    0x1ddf25e0, 0x1db18460, 0x1d839020, 0x1d5536e0,
+    0x1d268e80, 0x1cf7ae60, 0x1cc8aea0, 0x1c99af00,
+    0x1c6ad820, 0x1c3c5280, 0x1c0e4500, 0x1be0ab60,
+    0x1bb35620, 0x1b861400, 0x1b58b480, 0x1b2b1a00,
+    0x1afd39c0, 0x1acf09a0, 0x1aa080c0, 0x1a71b020,
+    0x1a42c2a0, 0x1a13e420, 0x19e53fc0, 0x19b6eb00,
+    0x1988e620, 0x195b3060, 0x192dc8a0, 0x1900a8a0,
+    0x18d3c4e0, 0x18a711e0, 0x187a83e0, 0x184e10e0,
+    0x1821b060, 0x17f55a00, 0x17c90580, 0x179cb100,
+    0x177060a0, 0x17441880, 0x1717dd20, 0x16ebb080,
+    0x16bf9260, 0x169382e0, 0x166781c0, 0x163b8f80,
+    0x160fade0, 0x15e3de40, 0x15b82220, 0x158c7ae0,
+    0x1560ea80, 0x15357240, 0x150a1400, 0x14ded020,
+    0x14b3a640, 0x148895a0, 0x145d9dc0, 0x1432bde0,
+    0x1407f540, 0x13dd4380, 0x13b2a860, 0x13882460,
+    0x135db880, 0x133365a0, 0x13092cc0, 0x12df0e60,
+    0x12b50aa0, 0x128b2120, 0x12615200, 0x12379da0,
+    0x120e04c0, 0x11e48820, 0x11bb2860, 0x1191e600,
+    0x1168c080, 0x113fb7a0, 0x1116cb40, 0x10edfba0,
+    0x10c54a00, 0x109cb7a0, 0x10744560, 0x104bf420,
+    0x1023c3e0, 0x0ffbb500, 0x0fd3c790, 0x0fabfbe0,
+    0x0f845290, 0x0f5ccc40, 0x0f356970, 0x0f0e2a60,
+    0x0ee70eb0, 0x0ec01610, 0x0e994040, 0x0e728d50,
+    0x0e4bfdf0, 0x0e2592c0, 0x0dff4c70, 0x0dd92af0,
+    0x0db32da0, 0x0d8d53e0, 0x0d679cf0, 0x0d420880,
+    0x0d1c9680, 0x0cf74700, 0x0cd219f0, 0x0cad0eb0,
+    0x0c882450, 0x0c6359a0, 0x0c3ead90, 0x0c1a1f80,
+    0x0bf5af40, 0x0bd15cf0, 0x0bad2870, 0x0b891440,
+    0x0b652530, 0x0b416020, 0x0b1dca30, 0x0afa6810,
+    0x0ad73ee0, 0x0ab45370, 0x0a91aac0, 0x0a6f49b0,
+    0x0a4da7f0, 0x0a2c7e20, 0x0a0ba310, 0x09eb1220,
+    0x09cac6e0, 0x09aabc70, 0x098aee40, 0x096b57a0,
+    0x094bf400, 0x092cbea0, 0x090db2e0, 0x08eecef0,
+    0x08d01360, 0x08b18110, 0x089318b0, 0x0874db00,
+    0x0856c880, 0x0838e1b0, 0x081b2730, 0x07fd99a8,
+    0x07e03a28, 0x07c309a8, 0x07a60910, 0x07893918,
+    0x076c99d0, 0x07502b90, 0x0733ee70, 0x0717e2f8,
+    0x06fc09b8, 0x06e06378, 0x06c4f0b8, 0x06a9b1c8,
+    0x068ea6a0, 0x0673cf18, 0x06592b18, 0x063ebad0,
+    0x06247ed0, 0x060a7780, 0x05f0a570, 0x05d708b8,
+    0x05bda128, 0x05a46e80, 0x058b7078, 0x0572a740,
+    0x055a1330, 0x0541b4d8, 0x05298c98, 0x05119a88,
+    0x04f9de50, 0x04e257a0, 0x04cb0630, 0x04b3ea00,
+    0x049d0378, 0x04865308, 0x046fd918, 0x045995a8,
+    0x04438860, 0x042db0d0, 0x04180ea0, 0x0402a1d0,
+    0x03ed6abc, 0x03d869b8, 0x03c39f28, 0x03af0af0,
+    0x039aaca0, 0x038683b4, 0x03728fc0, 0x035ed0b0,
+    0x034b46c4, 0x0337f254, 0x0324d3a0, 0x0311eab0,
+    0x02ff370c, 0x02ecb85c, 0x02da6e34, 0x02c858a8,
+    0x02b67820, 0x02a4cd28, 0x02935820, 0x02821920,
+    0x02710fac, 0x02603b54, 0x024f9bb4, 0x023f308c,
+    0x022ef9e8, 0x021ef7c8, 0x020f2a40, 0x01ff908e,
+    0x01f02974, 0x01e0f38a, 0x01d1ed94, 0x01c316d6,
+    0x01b46f5e, 0x01a5f720, 0x0197ae28, 0x018994ea,
+    0x017bac54, 0x016df546, 0x016070ae, 0x01532078,
+    0x01460760, 0x01392834, 0x012c85a4, 0x01201f7a,
+    0x0113f27c, 0x0107fb6c, 0x00fc36fd, 0x00f0a2d5,
+    0x00e53d51, 0x00da050f, 0x00cef88c, 0x00c41869,
+    0x00b9671f, 0x00aee754, 0x00a49b80, 0x009a8384,
+    0x00909ca6, 0x0086e400, 0x007d56e3, 0x0073f48e,
+    0x006abe70, 0x0061b5de, 0x0058dc65, 0x005033b4,
+    0x0047be30, 0x003f7e30, 0x00377619, 0x002fa4d4,
+    0x002805ee, 0x002094cb, 0x00194cb8, 0x00122856,
+    0x000b215c, 0x00043148, 0xfffd51f0, 0xfff683a0,
+    0xffefcd4d, 0xffe9362f, 0xffe2c57d, 0xffdc855c,
+    0xffd682c4, 0xffd0cad4, 0xffcb6a2c, 0xffc663bc,
+    0xffc1b06f, 0xffbd48e1, 0xffb92570, 0xffb53a54,
+    0xffb1779c, 0xffadcd38, 0xffaa2b42, 0xffa68855,
+    0xffa2e141, 0xff9f332c, 0xff9b7b9c, 0xff97bf2e,
+    0xff9409e2, 0xff9067e2, 0xff8ce556, 0xff898bf0,
+    0xff866306, 0xff8371d0, 0xff80bf63, 0xff7e4eba,
+    0xff7c1eaa, 0xff7a2e04, 0xff787b47, 0xff770280,
+    0xff75bd06, 0xff74a3f7, 0xff73b0b2, 0xff72dd02,
+    0xff72237e, 0xff717ebe, 0xff70e94c, 0xff705f59,
+    0xff6fde6a, 0xff6f6426, 0xff6eee40, 0xff6e7d0b,
+    0xff6e1359, 0xff6db403, 0xff6d61f8, 0xff6d2054,
+    0xff6cf267, 0xff6cdb76, 0xff6cdebb, 0xff6cff47,
+    0xff6d3fc9, 0xff6da306, 0xff6e2b82, 0xff6eda13,
+    0xff6fad6d, 0xff70a463, 0xff71bd9d, 0xff72f662,
+    0xff744a80, 0xff75b5c4, 0xff773409, 0xff78c0a6,
+    0xff7a5693, 0xff7bf0dc, 0xff7d8abb, 0xff7f2301,
+    0xff80bc08, 0xff825854, 0xff83fa56, 0xff85a55c,
+    0xff875d22, 0xff892598, 0xff8b025d, 0xff8cf53c,
+    0xff8efdf4, 0xff911c48, 0xff934fc9, 0xff959675,
+    0xff97ec86, 0xff9a4e35, 0xff9cb7d2, 0xff9f26cc,
+    0xffa199ce, 0xffa40f74, 0xffa6867c, 0xffa8feb2,
+    0xffab78e0, 0xffadf5c7, 0xffb07640, 0xffb2fba0,
+    0xffb587a2, 0xffb81bfb, 0xffbaba46, 0xffbd6236,
+    0xffc011a8, 0xffc2c679, 0xffc57e84, 0xffc83894,
+    0xffcaf41a, 0xffcdb0b8, 0xffd06e17, 0xffd32bf7,
+    0xffd5ea38, 0xffd8a8c3, 0xffdb6764, 0xffde25fb,
+    0xffe0e471, 0xffe3a2b2, 0xffe66087, 0xffe91da6,
+    0xffebd978, 0xffee9351, 0xfff14ab0, 0xfff3fef6,
+    0xfff6af94, 0xfff95c0c, 0xfffc03c7, 0xfffea659,
+    0x00015885, 0x0003f2e9, 0x00068a73, 0x00091e8d,
+    0x000bae7f, 0x000e39bf, 0x0010bf96, 0x00133f78,
+    0x0015b8c4, 0x00182ae4, 0x001a9558, 0x001cf7b2,
+    0x001f51e0, 0x0021a3b4, 0x0023ed25, 0x00262df2,
+    0x002865c5, 0x002a9469, 0x002cb967, 0x002ed4aa,
+    0x0030e607, 0x0032ed88, 0x0034eb2f, 0x0036de23,
+    0x0038c503, 0x003a9e4c, 0x003c68a6, 0x003e23dd,
+    0x003fd0db, 0x00417083, 0x0043038b, 0x00448adf,
+    0x00460740, 0x0047799c, 0x0048e2b2, 0x004a42af,
+    0x004b98fb, 0x004ce50b, 0x004e2654, 0x004f5b5d,
+    0x005081c3, 0x00519716, 0x00529920, 0x005386d0,
+    0x0054603f, 0x00552581, 0x0055d6cc, 0x00567558,
+    0x0057033c, 0x005782b4, 0x0057f5b6, 0x00585e46,
+    0x0058be68, 0x005917ff, 0x00596ce4, 0x0059bcc0,
+    0x005a053a, 0x005a43ee, 0x005a76ae, 0x005a9b37,
+    0x005aaf38, 0x005ab07a, 0x005a9cef, 0x005a7349,
+    0x005a3328, 0x0059dc0a, 0x00596db0, 0x0058e8e5,
+    0x00584f98, 0x0057a3c0, 0x0056e738, 0x00561bec,
+    0x005543df, 0x0054610b, 0x0053753e, 0x0052824e,
+    0x005189f6, 0x00508dec, 0x004f8fc0, 0x004e8fd0,
+    0x004d8d26, 0x004c86d7, 0x004b7c0a, 0x004a6b33,
+    0x00495239, 0x00482f0e, 0x0046ffc4, 0x0045c201,
+    0x00447337, 0x004310cc, 0x00419871, 0x004008e4,
+    0x003e6231, 0x003ca460, 0x003acf8a, 0x0038e57a,
+    0x0036e981, 0x0034defa, 0x0032c94b, 0x0030acc6,
+    0x002e8eb4, 0x002c7452, 0x002a62aa, 0x00285bbf,
+    0x00265eda, 0x00246b24, 0x00227f9c, 0x002098e7,
+    0x001eb13b, 0x001cc2ef, 0x001ac899, 0x0018be3d,
+    0x0016a198, 0x00147065, 0x00122897, 0x000fcbc5,
+    0x000d5f03, 0x000ae77a, 0x00086a52, 0x0005eb92,
+    0x00036e4a, 0x0000f57e, 0xfffe8414, 0xfffc1a78,
+    0xfff9b6bb, 0xfff756d9, 0xfff4f8d0, 0xfff29add,
+    0xfff03b87, 0xffedd94c, 0xffeb7295, 0xffe9072b,
+    0xffe6981a, 0xffe4265b, 0xffe1b30e, 0xffdf3f2b,
+    0xffdccb9e, 0xffda5993, 0xffd7ea0c, 0xffd57d60,
+    0xffd31302, 0xffd0aa27, 0xffce4243, 0xffcbdb40,
+    0xffc97595, 0xffc711a2, 0xffc4af9d, 0xffc24fa6,
+    0xffbff1de, 0xffbd9699, 0xffbb3e44, 0xffb8e8d5,
+    0xffb695f4, 0xffb44522, 0xffb1f627, 0xffafa8f0,
+    0xffad5d91, 0xffab140a, 0xffa8cc1c, 0xffa68590,
+    0xffa44066, 0xffa1fca0, 0xff9fba30, 0xff9d7902,
+    0xff9b3916, 0xff98fa6d, 0xff96bd06, 0xff9480b6,
+    0xff924532, 0xff900a24, 0xff8dcf41, 0xff8b9433,
+    0xff895884, 0xff871bd3, 0xff84dd8a, 0xff829d34,
+    0xff805a43, 0xff7e142d, 0xff7bca71, 0xff797c83,
+    0xff7729e3, 0xff74d204, 0xff727451, 0xff70101e,
+    0xff6da493, 0xff6b30d1, 0xff68b3f4, 0xff662d31,
+    0xff639bd1, 0xff60ff09, 0xff5e562c, 0xff5ba3e0,
+    0xff58ee39, 0xff563c22, 0xff5394f3, 0xff50fd1e,
+    0xff4e7599, 0xff4bff32, 0xff499ad4, 0xff47490a,
+    0xff450a36, 0xff42deb7, 0xff40c6cf, 0xff3ec2be,
+    0xff3cd299, 0xff3af681, 0xff392e6a, 0xff377a4a,
+    0xff35d9f7, 0xff344d44, 0xff32d3e8, 0xff316d96,
+    0xff3019d9, 0xff2ed83a, 0xff2da82f, 0xff2c88bf,
+    0xff2b78b4, 0xff2a76cc, 0xff298184, 0xff289890,
+    0xff27bc7d, 0xff26ee21, 0xff262e28, 0xff257cdc,
+    0xff24d9f4, 0xff244524, 0xff23be15, 0xff234488,
+    0xff22d852, 0xff227947, 0xff22273d, 0xff21e1d2,
+    0xff21a871, 0xff217a79, 0xff215748, 0xff213eca,
+    0xff21319e, 0xff21305c, 0xff213baf, 0xff2153c2,
+    0xff21782b, 0xff21a892, 0xff21e477, 0xff222bda,
+    0xff227f26, 0xff22debd, 0xff234b09, 0xff23c394,
+    0xff24471d, 0xff24d42b, 0xff25695c, 0xff260538,
+    0xff26a652, 0xff274b28, 0xff27f22d, 0xff2899d2,
+    0xff295975, 0xff29f2ad, 0xff2a96d7, 0xff2b45f4,
+    0xff2bffe3, 0xff2cc4ba, 0xff2d9458, 0xff2e6ede,
+    0xff2f544c, 0xff3044b7, 0xff314034, 0xff3246fa,
+    0xff33591e, 0xff3476e0, 0xff35a060, 0xff36d534,
+    0xff38148f, 0xff395daf, 0xff3aafd4, 0xff3c0ac8,
+    0xff3d6ed6, 0xff3edc54, 0xff405382, 0xff41d3f5,
+    0xff435ccc, 0xff44ed0f, 0xff4683d3, 0xff482080,
+    0xff49c297, 0xff4b69ab, 0xff4d1547, 0xff4ec4f5,
+    0xff50781d, 0xff522e20, 0xff53e692, 0xff55a15d,
+    0xff575f17, 0xff592022, 0xff5ae4de, 0xff5cacb4,
+    0xff5e75e2, 0xff603ee5, 0xff62062f, 0xff63caab,
+    0xff658b55, 0xff67476d, 0xff68fe11, 0xff6aaea0,
+    0xff6c5899, 0xff6dfb86, 0xff6f96e7, 0xff712a65,
+    0xff72b59f, 0xff74382b, 0xff75b1d3, 0xff772276,
+    0xff788a20, 0xff79e8e5, 0xff7b3ef0, 0xff7c8c98,
+    0xff7dd249, 0xff7f108c, 0xff804804, 0xff817d0e,
+    0xff82b74a, 0xff83fde6, 0xff855762, 0xff86c622,
+    0xff884904, 0xff89ded1, 0xff8b8646, 0xff8d3e4c,
+    0xff8f05cc, 0xff90dbc6, 0xff92bf2a, 0xff94af04,
+    0xff96aa26, 0xff98af9a, 0xff9abe48, 0xff9cd543,
+    0xff9ef3c1, 0xffa118ea, 0xffa343fd, 0xffa57423,
+    0xffa7a890, 0xffa9e084, 0xffac1b31, 0xffae5802,
+    0xffb09680, 0xffb2d621, 0xffb51678, 0xffb75704,
+    0xffb99726, 0xffbbd645, 0xffbe13d7, 0xffc04f26,
+    0xffc2879a, 0xffc4bc72, 0xffc6ed24, 0xffc918e3,
+    0xffcb3eb8, 0xffcd5dcc, 0xffcf7549, 0xffd184d8,
+    0xffd38c8f, 0xffd58ca4, 0xffd7854d, 0xffd97694,
+    0xffdb606e, 0xffdd42d1, 0xffdf1da8, 0xffe0f09b,
+    0xffe2bb00, 0xffe47c41, 0xffe633c6, 0xffe7e150,
+    0xffe98534, 0xffeb1fb4, 0xffecb10e, 0xffee3944,
+    0xffefb7e9, 0xfff12cbe, 0xfff29762, 0xfff3f789,
+    0xfff54cbe, 0xfff69695, 0xfff7d4b8, 0xfff90748,
+    0xfffa2ee5, 0xfffb4c3c, 0xfffc6003, 0xfffd6af0,
+    0xfffe6dda, 0xffff69b8, 0x00005f4b, 0x00014e7f,
+    0x00023646, 0x000315b4, 0x0003ebd3, 0x0004b74a,
+    0x00057677, 0x000627e2, 0x0006ca09, 0x00075ce1,
+    0x0007e196, 0x00085955, 0x0008c556, 0x00092751,
+    0x00098153, 0x0009d581, 0x000a25be, 0x000a732b,
+    0x000abe1f, 0x000b06e4, 0x000b4db1, 0x000b91fa,
+    0x000bd266, 0x000c0da0, 0x000c426e, 0x000c6ffb,
+    0x000c95b0, 0x000cb2f7, 0x000cc76e, 0x000cd317,
+    0x000cd647, 0x000cd17f, 0x000cc52b, 0x000cb1ea,
+    0x000c98c0, 0x000c7a62, 0x000c57c7, 0x000c3187,
+    0x000c0862, 0x000bdcd8, 0x000baf81, 0x000b80c7,
+    0x000b50ec, 0x000b202f, 0x000aeec6, 0x000abcb2,
+    0x000a89d2, 0x000a5605, 0x000a2116, 0x0009eafb,
+    0x0009b37d, 0x00097a9d, 0x00094030, 0x00090440,
+    0x0008c6b9, 0x000887ae, 0x0008470c, 0x00080512,
+    0x0007c1f6, 0x00077df9, 0x0007395a, 0x0006f45b,
+    0x0006af67, 0x00066abe, 0x000626b6, 0x0005e38f,
+    0x0005a1a0, 0x0005611e, 0x00052234, 0x0004e502,
+    0x0004a95d, 0x00046f46, 0x00043691, 0x0003ff33,
+    0x0003c90d, 0x0003941f, 0x00036047, 0x00032d9c,
+    0x0002fc1e, 0x0002cbed, 0x00029d1e, 0x00026fbc,
+    0x000243f2, 0x000219d6, 0x0001f17d, 0x0001caf1,
+    0x0001a63e, 0x00018363, 0x00016256, 0x00014316,
+    0x0001258f, 0x000109cb, 0x0000efaa, 0x0000d720,
+    0x0000c03a, 0x0000aacb, 0x000096de, 0x0000846a,
+    0x0000736d, 0x000063d3, 0x000055a6, 0x000048d0,
+    0x00003d47, 0x000032f6, 0x000029dc, 0x000021d9,
+    0x00001ae3, 0x000014ee, 0x00000fdb, 0x00000ba9,
+    0x00000839, 0x00000589, 0x00000370, 0x000001ee,
+    0x000000d7, 0x00000036, 0xffffffe0, 0xffffffc0,
+    0xffffffd5, 0xfffffff5, 0x0000000b, 0x0000000b,
+    0x0000000b, 0x0000000b, 0xfffffff5, 0xffffffd5,
+    0xffffffca, 0xffffffe0, 0x00000036, 0x000000d7,
+    0x000001ce, 0x0000033b, 0x00000529, 0x000007ad,
+    0x00000ac8, 0x00000e99, 0x00001316, 0x0000185e,
+    0x00001e7e, 0x00002575, 0x00002d4c, 0x0000361b,
+    0x00003fd6, 0x00004a93, 0x00005647, 0x00006312,
+    0x000070de, 0x00007fad, 0x00008f87, 0x0000a064,
+    0x0000b242, 0x0000c52d, 0x0000d919, 0x0000ee12,
+    0x0001040c, 0x00011b13, 0x0001331b, 0x00014c30,
+    0x0001663c, 0x0001814a, 0x00019d4f, 0x0001ba35,
+    0x0001d7e7, 0x0001f645, 0x00021544, 0x000234c3,
+    0x000254b9, 0x00027505, 0x000295a7, 0x0002b67e,
+    0x0002d7a1, 0x0002f904, 0x00031ab2, 0x00033ca0,
+    0x00035ee5, 0x0003818a, 0x0003a485, 0x0003c7e1,
+    0x0003eb72, 0x00040f0e, 0x0004329f, 0x000455e6,
+    0x000478c0, 0x00049aef, 0x0004bc52, 0x0004dca9,
+    0x0004fbde, 0x000519c5, 0x00053635, 0x0005512d,
+    0x00056aae, 0x000582a1, 0x00059927, 0x0005ae40,
+    0x0005c1f6, 0x0005d455, 0x0005e572, 0x0005f56d,
+    0x00060446, 0x0006121e, 0x00061f09, 0x00062b08,
+    0x00063605, 0x00063feb, 0x00064899, 0x00064ff0,
+    0x000655a5, 0x00065996, 0x00065b6f, 0x00065af8,
+    0x000657e9, 0x000651d4, 0x00064884, 0x00063bae,
+    0x00062b33, 0x00061706, 0x0005fefd, 0x0005e344,
+    0x0005c404, 0x0005a195, 0x00057c41, 0x00055473,
+    0x00052ac2, 0x0004ffc4, 0x0004d410, 0x0004a7e5,
+    0x00047b4f, 0x00044e39, 0x00042096, 0x0003f208,
+    0x0003c1e1, 0x00038f77, 0x00035a12, 0x00032127,
+    0x0002e476, 0x0002a389, 0x00025e29, 0x0002146d,
+    0x0001c700, 0x00017682, 0x000123a1, 0x0000cefd,
+    0x000078f7, 0x0000221a, 0xffffcad1, 0xffff7332,
+    0xffff1b1e, 0xfffec253, 0xfffe6891, 0xfffe0da2,
+    0xfffdb15c, 0xfffd5393, 0xfffcf412, 0xfffc92e3,
+    0xfffc3032, 0xfffbcc29, 0xfffb6714, 0xfffb0113,
+    0xfffa9a5b, 0xfffa3337, 0xfff9cbd4, 0xfff96450,
+    0xfff8fcac, 0xfff894dc, 0xfff82cd8, 0xfff7c4a8,
+    0xfff75c6d, 0xfff6f45e, 0xfff68c84, 0xfff62500,
+    0xfff5bde8, 0xfff5575a, 0xfff4f179, 0xfff48c64,
+    0xfff42810, 0xfff3c488, 0xfff361d7, 0xfff30008,
+    0xfff29f3a, 0xfff23f78, 0xfff1e0d8, 0xfff1835b,
+    0xfff1272a, 0xfff0cc46, 0xfff072cf, 0xfff01ad0,
+    0xffefc469, 0xffef6fa4, 0xffef1ca3, 0xffeecb7a,
+    0xffee7c1f, 0xffee2eb2, 0xffede33d, 0xffed99c1,
+    0xffed5249, 0xffed0cde, 0xffecc98d, 0xffec8849,
+    0xffec4934, 0xffec0c38, 0xffebd175, 0xffeb98eb,
+    0xffeb62a4, 0xffeb2ead, 0xffeafd19, 0xffeacdea,
+    0xffeaa129, 0xffea76cc, 0xffea4ef4, 0xffea299f,
+    0xffea06e5, 0xffe9e6ce, 0xffe9c97d, 0xffe9aebb,
+    0xffe99651, 0xffe97fd6, 0xffe96ad3, 0xffe95711,
+    0xffe9447d, 0xffe93315, 0xffe922ce, 0xffe913a0,
+    0xffe90588, 0xffe8f887, 0xffe8ec93, 0xffe8e1c1,
+    0xffe8d806, 0xffe8cf77, 0xffe8c816, 0xffe8c1eb,
+    0xffe8bd03, 0xffe8b967, 0xffe8b72e, 0xffe8b64d,
+    0xffe8b6d8, 0xffe8b8dc, 0xffe8bc6c, 0xffe8c18a,
+    0xffe8c840, 0xffe8d0a4, 0xffe8daca, 0xffe8e69e,
+    0xffe8f42a, 0xffe9035a, 0xffe9142b, 0xffe926a0,
+    0xffe93ab7, 0xffe95066, 0xffe967b8, 0xffe980ad,
+    0xffe99b3a, 0xffe9b754, 0xffe9d511, 0xffe9f45b,
+    0xffea1532, 0xffea3797, 0xffea5b89, 0xffea8108,
+    0xffeaa7ff, 0xffead079, 0xffeafa55, 0xffeb259e,
+    0xffeb5254, 0xffeb8061, 0xffebafdc, 0xffebe0ae,
+    0xffec12ce, 0xffec462f, 0xffec7add, 0xffecb0a3,
+    0xffece774, 0xffed1f32, 0xffed57a7, 0xffed90b2,
+    0xffedca48, 0xffee042a, 0xffee3e57, 0xffee788e,
+};
+
+const DECLARE_ALIGNED(32, float, ff_aac_eld_window_480)[1800] = {
+     0.00101191,  0.00440397,  0.00718669,  0.01072130,
+     0.01459757,  0.01875954,  0.02308987,  0.02751541,
+     0.03198130,  0.03643738,  0.04085290,  0.04522835,
+     0.04957620,  0.05390454,  0.05821503,  0.06251214,
+     0.06680463,  0.07109582,  0.07538014,  0.07965207,
+     0.08390857,  0.08815177,  0.09238785,  0.09662163,
+     0.10085860,  0.10510892,  0.10938110,  0.11367819,
+     0.11800355,  0.12236410,  0.12676834,  0.13122384,
+     0.13573476,  0.14030106,  0.14492340,  0.14960315,
+     0.15433828,  0.15912396,  0.16395663,  0.16883310,
+     0.17374837,  0.17869679,  0.18367394,  0.18867661,
+     0.19370368,  0.19875413,  0.20382641,  0.20892055,
+     0.21403775,  0.21917761,  0.22433899,  0.22952250,
+     0.23472991,  0.23996189,  0.24521859,  0.25049930,
+     0.25580312,  0.26112942,  0.26647748,  0.27184703,
+     0.27723785,  0.28264967,  0.28808086,  0.29352832,
+     0.29898979,  0.30446379,  0.30994292,  0.31541664,
+     0.32087942,  0.32632772,  0.33176291,  0.33718641,
+     0.34259612,  0.34799346,  0.35338857,  0.35878843,
+     0.36419504,  0.36960630,  0.37501567,  0.38042067,
+     0.38582069,  0.39121276,  0.39659312,  0.40195993,
+     0.40731155,  0.41264382,  0.41795277,  0.42323670,
+     0.42849480,  0.43372753,  0.43893452,  0.44411398,
+     0.44927117,  0.45441882,  0.45956191,  0.46470167,
+     0.46983016,  0.47493636,  0.48001827,  0.48507480,
+     0.49010240,  0.49509781,  0.50005986,  0.50499037,
+     0.50989790,  0.51478708,  0.51965805,  0.52450975,
+     0.52933955,  0.53414668,  0.53893113,  0.54369178,
+     0.54842731,  0.55313757,  0.55782259,  0.56248253,
+     0.56711762,  0.57172819,  0.57631468,  0.58087761,
+     0.58719976,  0.59173064,  0.59623644,  0.60071719,
+     0.60517294,  0.60960372,  0.61400958,  0.61839056,
+     0.62274670,  0.62707805,  0.63138475,  0.63566700,
+     0.63992500,  0.64415895,  0.64836893,  0.65255499,
+     0.65671715,  0.66085548,  0.66497005,  0.66906094,
+     0.67312824,  0.67717199,  0.68119219,  0.68518882,
+     0.68916187,  0.69311129,  0.69703698,  0.70093884,
+     0.70481679,  0.70867071,  0.71250047,  0.71630596,
+     0.72008705,  0.72384360,  0.72757549,  0.73128256,
+     0.73496463,  0.73862141,  0.74225263,  0.74585799,
+     0.74943730,  0.75299039,  0.75651711,  0.76001729,
+     0.76349062,  0.76693670,  0.77035516,  0.77374564,
+     0.77710790,  0.78044169,  0.78374678,  0.78702291,
+     0.79026979,  0.79348715,  0.79667471,  0.79983215,
+     0.80295914,  0.80605536,  0.80912047,  0.81215417,
+     0.81515616,  0.81812616,  0.82106389,  0.82396915,
+     0.82684176,  0.82968154,  0.83248830,  0.83526186,
+     0.83800204,  0.84070866,  0.84338156,  0.84602058,
+     0.84862556,  0.85119636,  0.85373292,  0.85623523,
+     0.85870326,  0.86113701,  0.86353649,  0.86590173,
+     0.86823275,  0.87052968,  0.87279275,  0.87502220,
+     0.87721829,  0.87938130,  0.88151157,  0.88360940,
+     0.88567517,  0.88770954,  0.88971328,  0.89168716,
+     0.89363199,  0.89554856,  0.89743771,  0.89930025,
+     0.90113740,  0.90295086,  0.90474240,  0.90651380,
+     0.90826684,  0.91000335,  0.91172515,  0.91343416,
+     0.91513276,  0.91682357,  0.91850924,  0.92019170,
+     0.92187129,  0.92354778,  0.92522116,  0.92688597,
+     0.92852960,  0.93013861,  0.93169897,  0.93319114,
+     0.93458502,  0.93587626,  0.93694276,  0.93825562,
+     0.93882222,  0.93910780,  0.93944183,  0.93981497,
+     0.94021434,  0.94062629,  0.94103714,  0.94144084,
+     0.94184042,  0.94223966,  0.94264206,  0.94304859,
+     0.94345831,  0.94387033,  0.94428390,  0.94469895,
+     0.94511572,  0.94553441,  0.94595520,  0.94637816,
+     0.94680335,  0.94723080,  0.94766054,  0.94809253,
+     0.94852674,  0.94896314,  0.94940178,  0.94984276,
+     0.95028618,  0.95073213,  0.95118056,  0.95163139,
+     0.95208451,  0.95253992,  0.95299770,  0.95345799,
+     0.95392092,  0.95438653,  0.95485472,  0.95532539,
+     0.95579847,  0.95627397,  0.95675201,  0.95723273,
+     0.95771618,  0.95820232,  0.95869103,  0.95918218,
+     0.95967573,  0.96017172,  0.96067026,  0.96117144,
+     0.96167526,  0.96218157,  0.96269026,  0.96320119,
+     0.96371437,  0.96422988,  0.96474782,  0.96526824,
+     0.96579106,  0.96631614,  0.96684334,  0.96737257,
+     0.96790390,  0.96843740,  0.96897315,  0.96951112,
+     0.97005119,  0.97059318,  0.97113697,  0.97168253,
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+    -0.01339276, -0.01339708, -0.01339816, -0.01339584,
+    -0.01339014, -0.01338116, -0.01336903, -0.01335382,
+    -0.01333545, -0.01331381, -0.01328876, -0.01326033,
+    -0.01322880, -0.01319457, -0.01315806, -0.01311968,
+    -0.01307987, -0.01303906, -0.01299769, -0.01295623,
+    -0.01308207, -0.01304153, -0.01299802, -0.01295155,
+    -0.01290215, -0.01284980, -0.01279450, -0.01273625,
+    -0.01267501, -0.01261077, -0.01254347, -0.01247306,
+    -0.01239950, -0.01232277, -0.01224304, -0.01216055,
+    -0.01207554, -0.01198813, -0.01189829, -0.01180590,
+    -0.01171090, -0.01161335, -0.01151352, -0.01141167,
+    -0.01130807, -0.01120289, -0.01109626, -0.01098830,
+    -0.01087916, -0.01076898, -0.01065793, -0.01054618,
+    -0.01043380, -0.01032068, -0.01020670, -0.01009171,
+    -0.00997585, -0.00985959, -0.00974338, -0.00962765,
+    -0.00951273, -0.00939888, -0.00928634, -0.00917534,
+    -0.00906604, -0.00895860, -0.00885313, -0.00874977,
+    -0.00864862, -0.00854979, -0.00845337, -0.00835939,
+    -0.00826785, -0.00817872, -0.00809195, -0.00800745,
+    -0.00792506, -0.00784469, -0.00776588, -0.00768695,
+    -0.00760568, -0.00752004, -0.00742875, -0.00733186,
+    -0.00722976, -0.00712279, -0.00701130, -0.00689559,
+    -0.00677595, -0.00665269, -0.00652610, -0.00639649,
+    -0.00626417, -0.00612943, -0.00599252, -0.00585368,
+    -0.00571315, -0.00557115, -0.00542792, -0.00528367,
+    -0.00513864, -0.00499301, -0.00484693, -0.00470054,
+    -0.00455395, -0.00440733, -0.00426086, -0.00411471,
+    -0.00396904, -0.00382404, -0.00367991, -0.00353684,
+    -0.00339502, -0.00325472, -0.00311618, -0.00297967,
+    -0.00284531, -0.00271307, -0.00258290, -0.00245475,
+    -0.00232860, -0.00220447, -0.00208236, -0.00196233,
+    -0.00184450, -0.00172906, -0.00161620, -0.00150603,
+    -0.00139852, -0.00129358, -0.00119112, -0.00109115,
+    -0.00099375, -0.00089902, -0.00080705, -0.00071796,
+    -0.00063185, -0.00054886, -0.00046904, -0.00039231,
+    -0.00031845, -0.00024728, -0.00017860, -0.00011216,
+    -0.00004771,  0.00001500,  0.00007600,  0.00013501,
+     0.00019176,  0.00024595,  0.00029720,  0.00034504,
+     0.00038902,  0.00042881,  0.00046456,  0.00049662,
+     0.00052534,  0.00055114,  0.00057459,  0.00059629,
+     0.00061684,  0.00063660,  0.00065568,  0.00067417,
+     0.00069213,  0.00070935,  0.00072545,  0.00074005,
+     0.00075283,  0.00076356,  0.00077209,  0.00077828,
+     0.00078205,  0.00078350,  0.00078275,  0.00077992,
+     0.00077520,  0.00076884,  0.00076108,  0.00075218,
+     0.00074232,  0.00073170,  0.00072048,  0.00070881,
+     0.00069680,  0.00068450,  0.00067201,  0.00065934,
+     0.00064647,  0.00063335,  0.00061994,  0.00060621,
+     0.00059211,  0.00057763,  0.00056274,  0.00054743,
+     0.00053169,  0.00051553,  0.00049897,  0.00048206,
+     0.00046487,  0.00044748,  0.00042996,  0.00041241,
+     0.00039492,  0.00037759,  0.00036049,  0.00034371,
+     0.00032732,  0.00031137,  0.00029587,  0.00028079,
+     0.00026612,  0.00025183,  0.00023789,  0.00022428,
+     0.00021097,  0.00019797,  0.00018530,  0.00017297,
+     0.00016100,  0.00014942,  0.00013827,  0.00012757,
+     0.00011736,  0.00010764,  0.00009841,  0.00008969,
+     0.00008145,  0.00007369,  0.00006641,  0.00005958,
+     0.00005320,  0.00004725,  0.00004171,  0.00003659,
+     0.00003186,  0.00002752,  0.00002357,  0.00001999,
+     0.00001679,  0.00001392,  0.00001140,  0.00000918,
+     0.00000726,  0.00000562,  0.00000424,  0.00000309,
+     0.00000217,  0.00000143,  0.00000088,  0.00000048,
+     0.00000020,  0.00000004, -0.00000004, -0.00000006,
+    -0.00000004, -0.00000000,  0.00000002,  0.00000000,
+     0.00000000,  0.00000002, -0.00000000, -0.00000004,
+    -0.00000005, -0.00000004,  0.00000004,  0.00000019,
+     0.00000045,  0.00000083,  0.00000134,  0.00000201,
+     0.00000285,  0.00000387,  0.00000510,  0.00000654,
+     0.00000821,  0.00001011,  0.00001227,  0.00001468,
+     0.00001735,  0.00002030,  0.00002352,  0.00002702,
+     0.00003080,  0.00003486,  0.00003918,  0.00004379,
+     0.00004866,  0.00005382,  0.00005924,  0.00006495,
+     0.00007093,  0.00007719,  0.00008373,  0.00009053,
+     0.00009758,  0.00010488,  0.00011240,  0.00012010,
+     0.00012796,  0.00013596,  0.00014406,  0.00015226,
+     0.00016053,  0.00016886,  0.00017725,  0.00018571,
+     0.00019424,  0.00020286,  0.00021156,  0.00022037,
+     0.00022928,  0.00023825,  0.00024724,  0.00025621,
+     0.00026509,  0.00027385,  0.00028241,  0.00029072,
+     0.00029874,  0.00030643,  0.00031374,  0.00032065,
+     0.00032715,  0.00033325,  0.00033895,  0.00034425,
+     0.00034917,  0.00035374,  0.00035796,  0.00036187,
+     0.00036549,  0.00036883,  0.00037194,  0.00037479,
+     0.00037736,  0.00037963,  0.00038154,  0.00038306,
+     0.00038411,  0.00038462,  0.00038453,  0.00038373,
+     0.00038213,  0.00037965,  0.00037621,  0.00037179,
+     0.00036636,  0.00035989,  0.00035244,  0.00034407,
+     0.00033488,  0.00032497,  0.00031449,  0.00030361,
+     0.00029252,  0.00028133,  0.00027003,  0.00025862,
+     0.00024706,  0.00023524,  0.00022297,  0.00021004,
+     0.00019626,  0.00018150,  0.00016566,  0.00014864,
+     0.00013041,  0.00011112,  0.00009096,  0.00007014,
+     0.00004884,  0.00002718,  0.00000530, -0.00001667,
+    -0.00003871, -0.00006090, -0.00008331, -0.00010600,
+    -0.00012902, -0.00015244, -0.00017631, -0.00020065,
+    -0.00022541, -0.00025052, -0.00027594, -0.00030159,
+    -0.00032740, -0.00035332, -0.00037928, -0.00040527,
+    -0.00043131, -0.00045741, -0.00048357, -0.00050978,
+    -0.00053599, -0.00056217, -0.00058827, -0.00061423,
+    -0.00064002, -0.00066562, -0.00069100, -0.00071616,
+    -0.00074110, -0.00076584, -0.00079036, -0.00081465,
+    -0.00083869, -0.00086245, -0.00088590, -0.00090901,
+    -0.00093176, -0.00095413, -0.00097608, -0.00099758,
+    -0.00101862, -0.00103918, -0.00105924, -0.00107879,
+    -0.00109783, -0.00111635, -0.00113434, -0.00115181,
+    -0.00116873, -0.00118510, -0.00120091, -0.00121615,
+    -0.00123082, -0.00124490, -0.00125838, -0.00127125,
+    -0.00128350, -0.00129511, -0.00130610, -0.00131643,
+    -0.00132610, -0.00133509, -0.00134334, -0.00135069,
+    -0.00135711, -0.00136272, -0.00136768, -0.00137225,
+    -0.00137649, -0.00138042, -0.00138404, -0.00138737,
+    -0.00139041, -0.00139317, -0.00139565, -0.00139785,
+    -0.00139976, -0.00140137, -0.00140267, -0.00140366,
+    -0.00140432, -0.00140464, -0.00140461, -0.00140423,
+    -0.00140347, -0.00140235, -0.00140084, -0.00139894,
+    -0.00139664, -0.00139388, -0.00139065, -0.00138694,
+    -0.00138278, -0.00137818, -0.00137317, -0.00136772,
+    -0.00136185, -0.00135556, -0.00134884, -0.00134170,
+    -0.00133415, -0.00132619, -0.00131784, -0.00130908,
+    -0.00129991, -0.00129031, -0.00128031, -0.00126990,
+    -0.00125912, -0.00124797, -0.00123645, -0.00122458,
+    -0.00121233, -0.00119972, -0.00118676, -0.00117347,
+    -0.00115988, -0.00114605, -0.00113200, -0.00111778,
+    -0.00110343, -0.00108898, -0.00107448, -0.00105995,
+};
+
+const DECLARE_ALIGNED(32, int, ff_aac_eld_window_480_fixed)[1800] = {
+    0x00109442, 0x00482797, 0x0075bf2a, 0x00afa864,
+    0x00ef2aa5, 0x01335b36, 0x017a4df0, 0x01c2cffe,
+    0x020bfb4c, 0x0254fd74, 0x029d557c, 0x02e50574,
+    0x032c41a8, 0x03732c08, 0x03b9cb88, 0x040032e8,
+    0x044686f0, 0x048cd578, 0x04d30738, 0x05190500,
+    0x055ec210, 0x05a44750, 0x05e9aeb8, 0x062f0c80,
+    0x067477a0, 0x06ba1ac0, 0x07001998, 0x074680e0,
+    0x078d5ec0, 0x07d4d038, 0x081cf8f0, 0x0865f8b0,
+    0x08afe0e0, 0x08fab150, 0x09466cd0, 0x09931910,
+    0x09e0adb0, 0x0a2f1640, 0x0a7e43f0, 0x0ace2960,
+    0x0b1eb180, 0x0b6fc4b0, 0x0bc15050, 0x0c134710,
+    0x0c65a420, 0x0cb86340, 0x0d0b7df0, 0x0d5ef450,
+    0x0db2cb60, 0x0e070180, 0x0e5b91f0, 0x0eb07f20,
+    0x0f05d0a0, 0x0f5b8920, 0x0fb1a950, 0x10082e40,
+    0x105f1400, 0x10b65820, 0x110df780, 0x1165f120,
+    0x11be43e0, 0x1216eea0, 0x126feac0, 0x12c92b00,
+    0x1322a620, 0x137c55c0, 0x13d61ae0, 0x142fc940,
+    0x148949e0, 0x14e28da0, 0x153b9a80, 0x15947640,
+    0x15ed1840, 0x16458660, 0x169deb20, 0x16f663c0,
+    0x174ef8c0, 0x17a7a120, 0x180041c0, 0x1858d000,
+    0x18b14940, 0x1909a140, 0x1961c820, 0x19b9b620,
+    0x1a116480, 0x1a68c1a0, 0x1abfbd00, 0x1b164f60,
+    0x1b6c7580, 0x1bc23120, 0x1c1780e0, 0x1c6c5d00,
+    0x1cc0dbe0, 0x1d1532a0, 0x1d697660, 0x1dbdac20,
+    0x1e11b280, 0x1e655b80, 0x1eb89e80, 0x1f0b7720,
+    0x1f5dd680, 0x1fafaec0, 0x2000fb00, 0x2051c340,
+    0x20a22ac0, 0x20f24580, 0x214213c0, 0x21919140,
+    0x21e0b300, 0x222f7580, 0x227dd900, 0x22cbd880,
+    0x23196ec0, 0x23669b00, 0x23b35d80, 0x23ffb6c0,
+    0x244ba7c0, 0x249731c0, 0x24e25700, 0x252d1940,
+    0x2594ae40, 0x25deea40, 0x2628bd00, 0x26722680,
+    0x26bb2740, 0x2703bf40, 0x274beec0, 0x2793b600,
+    0x27db1500, 0x28220c00, 0x28689b80, 0x28aec4c0,
+    0x28f48800, 0x2939e680, 0x297ee080, 0x29c37600,
+    0x2a07a740, 0x2a4b74c0, 0x2a8ede80, 0x2ad1e500,
+    0x2b148880, 0x2b56c940, 0x2b98a740, 0x2bda2240,
+    0x2c1b3a80, 0x2c5bef80, 0x2c9c4100, 0x2cdc2e80,
+    0x2d1bb800, 0x2d5adc80, 0x2d999b80, 0x2dd7f500,
+    0x2e15e800, 0x2e537400, 0x2e9098c0, 0x2ecd5540,
+    0x2f09a900, 0x2f4592c0, 0x2f811140, 0x2fbc2340,
+    0x2ff6c7c0, 0x3030fe80, 0x306ac6c0, 0x30a41f80,
+    0x30dd07c0, 0x31157dc0, 0x314d7fc0, 0x31850c80,
+    0x31bc22c0, 0x31f2c1c0, 0x3228e840, 0x325e9540,
+    0x3293c7c0, 0x32c87e40, 0x32fcb800, 0x33307340,
+    0x3363aec0, 0x33966940, 0x33c8a140, 0x33fa5580,
+    0x342b84c0, 0x345c2dc0, 0x348c4f80, 0x34bbe900,
+    0x34eaf9c0, 0x35198080, 0x35477d00, 0x3574ee40,
+    0x35a1d340, 0x35ce2bc0, 0x35f9f6c0, 0x36253380,
+    0x364fe180, 0x367a0040, 0x36a38f80, 0x36cc8ec0,
+    0x36f4fe80, 0x371cde80, 0x37442e80, 0x376aef00,
+    0x37912000, 0x37b6c200, 0x37dbd600, 0x38005d00,
+    0x38245840, 0x3847c880, 0x386aaf80, 0x388d0e80,
+    0x38aee700, 0x38d03bc0, 0x38f11000, 0x39116700,
+    0x39314440, 0x3950ab00, 0x396f9e80, 0x398e22c0,
+    0x39ac3c40, 0x39c9f280, 0x39e74cc0, 0x3a045280,
+    0x3a210b40, 0x3a3d7ec0, 0x3a59b480, 0x3a75b480,
+    0x3a918900, 0x3aad3cc0, 0x3ac8db00, 0x3ae46bc0,
+    0x3afff080, 0x3b1b6840, 0x3b36d2c0, 0x3b521980,
+    0x3b6d0780, 0x3b876400, 0x3ba0f4c0, 0x3bb96740,
+    0x3bd03dc0, 0x3be56580, 0x3bf6dec0, 0x3c0c6140,
+    0x3c15a9c0, 0x3c1a5780, 0x3c1fd0c0, 0x3c25edc0,
+    0x3c2c78c0, 0x3c333880, 0x3c39f3c0, 0x3c409100,
+    0x3c471d00, 0x3c4da780, 0x3c543f40, 0x3c5ae880,
+    0x3c619f00, 0x3c685f00, 0x3c6f25c0, 0x3c75f280,
+    0x3c7cc6c0, 0x3c83a2c0, 0x3c8a87c0, 0x3c9175c0,
+    0x3c986d00, 0x3c9f6e00, 0x3ca67880, 0x3cad8c40,
+    0x3cb4a980, 0x3cbbd000, 0x3cc2ffc0, 0x3cca3940,
+    0x3cd17d40, 0x3cd8cb80, 0x3ce02480, 0x3ce78740,
+    0x3ceef3c0, 0x3cf66a00, 0x3cfdea00, 0x3d0574c0,
+    0x3d0d0a40, 0x3d14ab40, 0x3d1c5700, 0x3d240d00,
+    0x3d2bcd40, 0x3d3397c0, 0x3d3b6cc0, 0x3d434d00,
+    0x3d4b38c0, 0x3d532fc0, 0x3d5b3180, 0x3d633dc0,
+    0x3d6b53c0, 0x3d737400, 0x3d7b9f00, 0x3d83d540,
+    0x3d8c1680, 0x3d946200, 0x3d9cb780, 0x3da51680,
+    0x3dad7f00, 0x3db5f140, 0x3dbe6dc0, 0x3dc6f480,
+    0x3dcf8540, 0x3dd81fc0, 0x3de0c300, 0x3de96ec0,
+    0x3df22340, 0x3dfae0c0, 0x3e03a800, 0x3e0c7840,
+    0x3e155180, 0x3e1e32c0, 0x3e271bc0, 0x3e300c00,
+    0x3e390400, 0x3e420400, 0x3e4b0c40, 0x3e541c80,
+    0x3e5d33c0, 0x3e6651c0, 0x3e6f7580, 0x3e789fc0,
+    0x3e81d080, 0x3e8b0880, 0x3e944700, 0x3e9d8c00,
+    0x3ea6d680, 0x3eb02600, 0x3eb97a80, 0x3ec2d400,
+    0x3ecc3340, 0x3ed59880, 0x3edf0300, 0x3ee87280,
+    0x3ef1e600, 0x3efb5d40, 0x3f04d880, 0x3f0e5840,
+    0x3f17dcc0, 0x3f216600, 0x3f2af340, 0x3f348440,
+    0x3f3e1840, 0x3f47af40, 0x3f514a00, 0x3f5ae840,
+    0x3f648b00, 0x3f6e3140, 0x3f77db00, 0x3f818740,
+    0x3f8b3600, 0x3f94e780, 0x3f9e9c40, 0x3fa85480,
+    0x3fb21080, 0x3fbbcfc0, 0x3fc59200, 0x3fcf56c0,
+    0x3fd91dc0, 0x3fe2e640, 0x3fecb040, 0x3ff67b40,
+    0x40098600, 0x40135580, 0x401d2700, 0x4026fa00,
+    0x4030ce80, 0x403aa380, 0x40447900, 0x404e4f00,
+    0x40582400, 0x4061f900, 0x406bcd00, 0x4075a080,
+    0x407f7480, 0x40894900, 0x40931e00, 0x409cf280,
+    0x40a6c600, 0x40b09800, 0x40ba6980, 0x40c43a80,
+    0x40ce0b00, 0x40d7db00, 0x40e1ab00, 0x40eb7980,
+    0x40f54600, 0x40ff1080, 0x4108d980, 0x4112a100,
+    0x411c6800, 0x41262d80, 0x412ff080, 0x4139b180,
+    0x41436e80, 0x414d2980, 0x4156e100, 0x41609700,
+    0x416a4a80, 0x4173fb00, 0x417da800, 0x41875000,
+    0x4190f400, 0x419a9400, 0x41a43000, 0x41adc880,
+    0x41b75d00, 0x41c0ec80, 0x41ca7700, 0x41d3fb00,
+    0x41dd7980, 0x41e6f280, 0x41f06600, 0x41f9d480,
+    0x42033d00, 0x420c9f00, 0x4215f980, 0x421f4d00,
+    0x42289900, 0x4231de80, 0x423b1d00, 0x42445500,
+    0x424d8500, 0x4256ad00, 0x425fcc80, 0x4268e380,
+    0x4271f200, 0x427af900, 0x4283f880, 0x428cef80,
+    0x4295de00, 0x429ec280, 0x42a79d80, 0x42b06f00,
+    0x42b93800, 0x42c1f800, 0x42caaf80, 0x42d35d80,
+    0x42dc0100, 0x42e49b00, 0x42ed2a80, 0x42f5b080,
+    0x42fe2d80, 0x4306a180, 0x430f0c80, 0x43176d80,
+    0x431fc480, 0x43281100, 0x43305400, 0x43388e80,
+    0x4340c000, 0x4348e900, 0x43510900, 0x43591f00,
+    0x43612b80, 0x43692f00, 0x43712900, 0x43791a80,
+    0x43810380, 0x4388e400, 0x4390bc00, 0x43988b00,
+    0x43a05180, 0x43a80f00, 0x43afc480, 0x43b77180,
+    0x43bf1780, 0x43c6b700, 0x43ce5100, 0x43d5e580,
+    0x43dd7100, 0x43e4ef80, 0x43ec5b80, 0x43f3ba80,
+    0x43fb1c80, 0x44029400, 0x440a2e80, 0x4411d080,
+    0x44193800, 0x44202480, 0x44265880, 0x442ba780,
+    0x442d8680, 0x4428a500, 0x44241380, 0x441ccb00,
+    0x44140100, 0x440a1200, 0x43ff7280, 0x43f46980,
+    0x43e93200, 0x43ddff00, 0x43d2dc80, 0x43c7ac00,
+    0x43bc4900, 0x43b09400, 0x43a47d80, 0x4397fd80,
+    0x438b0780, 0x437d9b80, 0x436fd380, 0x4361cd80,
+    0x4353a800, 0x43457500, 0x43373c80, 0x43290500,
+    0x431ad400, 0x430ca280, 0x42fe6000, 0x42f00080,
+    0x42e17380, 0x42d29e00, 0x42c35d80, 0x42b39200,
+    0x42a32080, 0x4291fc00, 0x42801900, 0x426d6d80,
+    0x4259f680, 0x4245bd00, 0x4230ca80, 0x421b2900,
+    0x4204e800, 0x41ee1d00, 0x41d6dd80, 0x41bf3c80,
+    0x41a74680, 0x418f0680, 0x41768800, 0x415dd100,
+    0x4144e400, 0x412bbf80, 0x41126400, 0x40f8cc00,
+    0x40deea00, 0x40c4b100, 0x40aa1400, 0x408f0800,
+    0x40738380, 0x40577d80, 0x403aeb80, 0x401dc180,
+    0x3ffff240, 0x3fe170c0, 0x3fc232c0, 0x3fa23680,
+    0x3f817c40, 0x3f6002c0, 0x3f3ddec0, 0x3f1b4180,
+    0x3ef85d40, 0x3ed56340, 0x3eb27240, 0x3e8f9c40,
+    0x3e6cf400, 0x3e4a81c0, 0x3e282140, 0x3e059980,
+    0x3de2b280, 0x3dbf4100, 0x3d9b3640, 0x3d768b00,
+    0x3d513640, 0x3d2b3840, 0x3d049b80, 0x3cdd6b40,
+    0x3cb5b400, 0x3c8d8f40, 0x3c652080, 0x3c3c8c40,
+    0x3c13f480, 0x3beb7580, 0x3bc327c0, 0x3b9b2680,
+    0x3b737000, 0x3b4bc580, 0x3b23d740, 0x3afb5640,
+    0x3ad21c40, 0x3aa83780, 0x3a7dbc40, 0x3a52bf80,
+    0x3a276600, 0x39fbe0c0, 0x39d06140, 0x39a50ec0,
+    0x3979e300, 0x394ebf40, 0x392386c0, 0x38f82280,
+    0x38cc89c0, 0x38a0b7c0, 0x3874a740, 0x38485840,
+    0x381bd1c0, 0x37ef1b40, 0x37c23cc0, 0x37953dc0,
+    0x376825c0, 0x373afc80, 0x370dc980, 0x36e09440,
+    0x36b41dc0, 0x36862100, 0x3657e480, 0x36297240,
+    0x35fad380, 0x35cc1200, 0x359d36c0, 0x356e4b40,
+    0x353f5880, 0x35106780, 0x34e17780, 0x34b28240,
+    0x34838040, 0x345466c0, 0x34251940, 0x33f57280,
+    0x33c54bc0, 0x33949840, 0x33638380, 0x33324980,
+    0x33012500, 0x32d04480, 0x329fc7c0, 0x326fcbc0,
+    0x324068c0, 0x32116fc0, 0x31e27600, 0x31b30fc0,
+    0x3182e300, 0x3151e240, 0x312029c0, 0x30edd080,
+    0x30baf700, 0x3087cd00, 0x30548600, 0x30215680,
+    0x2fee65c0, 0x2fbbca40, 0x2f899980, 0x2f57e6c0,
+    0x2f26b540, 0x2ef5f980, 0x2ec5aa00, 0x2e95afc0,
+    0x2e65c180, 0x2e357b40, 0x2e047840, 0x2dd27380,
+    0x2d9f6c40, 0x2d6b7780, 0x2d36a6c0, 0x2d012940,
+    0x2ccb5680, 0x2c958a00, 0x2c601b80, 0x2c2b3640,
+    0x2bf6dfc0, 0x2bc31ec0, 0x2b8ff500, 0x2b5d5540,
+    0x2b2b2a00, 0x2af95e80, 0x2ac7dd80, 0x2a968f80,
+    0x2a655d40, 0x2a342f00, 0x2a02e8c0, 0x29d16700,
+    0x299f8640, 0x296d2380, 0x293a2740, 0x29068400,
+    0x28d22b40, 0x289d1540, 0x28675280, 0x28310180,
+    0x27fa3f00, 0x27c32f80, 0x278c08c0, 0x275505c0,
+    0x271e60c0, 0x26e84b00, 0x26b2e880, 0x267e5cc0,
+    0x264ac940, 0x26183a40, 0x25e6aa80, 0x25b615c0,
+    0x25866b80, 0x25576b40, 0x2528ba00, 0x24f9ffc0,
+    0x24cadfc0, 0x249af540, 0x2469da80, 0x24372780,
+    0x2402b800, 0x23ccbfc0, 0x23957cc0, 0x235d3140,
+    0x23245200, 0x22eb8000, 0x22b35cc0, 0x227c7940,
+    0x22471d40, 0x22136840, 0x21e18240, 0x21b15d80,
+    0x21827dc0, 0x21544600, 0x21261b00, 0x20f78600,
+    0x20c83e00, 0x20980000, 0x20668e00, 0x2033f300,
+    0x20007400, 0x1fcc64e0, 0x1f97d120, 0x1f642320,
+    0x1f2f49e0, 0x1efaa840, 0x1ec73580, 0x1e94d880,
+    0x1e636120, 0x1e32a160, 0x1e025ba0, 0x1dd24300,
+    0x1da20e60, 0x1d717940, 0x1d407560, 0x1d0f2040,
+    0x1cdd95c0, 0x1cabf500, 0x1c7a6940, 0x1c492340,
+    0x1c185680, 0x1be818c0, 0x1bb83f60, 0x1b888d20,
+    0x1b58c640, 0x1b28c240, 0x1af871e0, 0x1ac7c960,
+    0x1a96bf00, 0x1a656b60, 0x1a340360, 0x1a02bd20,
+    0x19d1c6c0, 0x19a12f40, 0x1970f480, 0x19411640,
+    0x19119000, 0x18e255a0, 0x18b358a0, 0x18848b20,
+    0x1855e040, 0x18274e00, 0x17f8c9e0, 0x17ca4a80,
+    0x179bce40, 0x176d5a60, 0x173ef400, 0x17109fe0,
+    0x16e25f60, 0x16b43240, 0x16861880, 0x16581220,
+    0x162a20c0, 0x15fc4620, 0x15ce8420, 0x15a0dca0,
+    0x157351c0, 0x1545e580, 0x151899a0, 0x14eb6ec0,
+    0x14be63a0, 0x14917a00, 0x14649ae0, 0x14377060,
+    0x1409d0c0, 0x13dbbb20, 0x13ad58e0, 0x137f0160,
+    0x1350cc80, 0x1322b8c0, 0x12f4ca60, 0x12c704e0,
+    0x129968a0, 0x126bf5c0, 0x123eade0, 0x12119300,
+    0x11e4a660, 0x11b7e860, 0x118b5940, 0x115ef8a0,
+    0x1132c600, 0x1106c1a0, 0x10daecc0, 0x10af4900,
+    0x1083d7a0, 0x10589c00, 0x102d9a00, 0x1002d1e0,
+    0x0fd842c0, 0x0fadde80, 0x0f839a50, 0x0f597700,
+    0x0f2f76e0, 0x0f05a170, 0x0edbf9c0, 0x0eb27f30,
+    0x0e8930d0, 0x0e600d70, 0x0e371550, 0x0e0e4950,
+    0x0de5ab50, 0x0dbd3d20, 0x0d94fe10, 0x0d6cecb0,
+    0x0d450220, 0x0d1d38f0, 0x0cf59130, 0x0cce0c30,
+    0x0ca6af10, 0x0c7f7b80, 0x0c587010, 0x0c318960,
+    0x0c0ac200, 0x0be418d0, 0x0bbd8da0, 0x0b9724e0,
+    0x0b70e6c0, 0x0b4ad970, 0x0b2502f0, 0x0aff6930,
+    0x0ada1250, 0x0ab50430, 0x0a9044d0, 0x0a6bda30,
+    0x0a3bedf0, 0x0a18be40, 0x09f5e530, 0x09d35cf0,
+    0x09b11ff0, 0x098f2890, 0x096d7120, 0x094bf400,
+    0x092aab80, 0x09099240, 0x08e8a620, 0x08c7e850,
+    0x08a75990, 0x0886fae0, 0x0866ccf0, 0x0846d070,
+    0x08270610, 0x08076e70, 0x07e80ac8, 0x07c8dc60,
+    0x07a9e440, 0x078b2348, 0x076c99d0, 0x074e4818,
+    0x07302e50, 0x07124d18, 0x06f4a530, 0x06d73778,
+    0x06ba0488, 0x069d0c88, 0x06804f68, 0x0663cce0,
+    0x06478528, 0x062b78a0, 0x060fa7e8, 0x05f413b8,
+    0x05d8bc38, 0x05bda128, 0x05a2c258, 0x05881f60,
+    0x056db888, 0x05538e60, 0x0539a170, 0x051ff218,
+    0x05068040, 0x04ed4b90, 0x04d45398, 0x04bb9820,
+    0x04a31988, 0x048ad860, 0x0472d528, 0x045b0ff0,
+    0x04438860, 0x042c3de8, 0x04153040, 0x03fe5f4c,
+    0x03e7cb98, 0x03d17580, 0x03bb5d64, 0x03a582e8,
+    0x038fe588, 0x037a8494, 0x03655fcc, 0x03507768,
+    0x033bcbb4, 0x03275d28, 0x03132bc0, 0x02ff370c,
+    0x02eb7e94, 0x02d801e8, 0x02c4c11c, 0x02b1bcbc,
+    0x029ef578, 0x028c6ba8, 0x027a1f20, 0x02680f54,
+    0x02563bac, 0x0244a3c8, 0x023347a0, 0x02222730,
+    0x0211429c, 0x02009938, 0x01f02974, 0x01dff1ae,
+    0x01cff058, 0x01c024c8, 0x01b08ef4, 0x01a12eda,
+    0x019204b0, 0x01831138, 0x01745588, 0x0165d2c2,
+    0x01578a96, 0x01497ffc, 0x013bb670, 0x012e3160,
+    0x0120f146, 0x0113f27c, 0x0107310c, 0x00faa909,
+    0x00ee57a1, 0x00e23b09, 0x00d6515b, 0x00ca9977,
+    0x00bf1509, 0x00b3c74d, 0x00a8b388, 0x009ddb3d,
+    0x00933bf2, 0x0088d22c, 0x007e9a70, 0x0074935a,
+    0x006abe70, 0x00611d5c, 0x0057b1f8, 0x004e7e73,
+    0x0045859b, 0x003cca96, 0x00344f32, 0x002c1074,
+    0x00240873, 0x001c31ba, 0x0014863f, 0x000cfe8b,
+    0x00059307, 0xfffe3b9a, 0xfff6f718, 0xffefcd4d,
+    0xffe8c6f4, 0xffe1ed10, 0xffdb4c57, 0xffd4f484,
+    0xffcef5dc, 0xffc95d0c, 0xffc4284e, 0xffbf4e14,
+    0xffbac5ae, 0xffb68360, 0xffb27548, 0xffae87be,
+    0xffaaa733, 0xffa6c67e, 0xffa2e141, 0xff9ef40c,
+    0xff9afc25, 0xff970058, 0xff930f7c, 0xff8f3857,
+    0xff8b8900, 0xff880bfe, 0xff84c9ea, 0xff81cbbd,
+    0xff7f17ad, 0xff7cadc6, 0xff7a8c4e, 0xff78b1cd,
+    0xff7719f3, 0xff75bd06, 0xff7492a4, 0xff7392bf,
+    0xff72b600, 0xff71f5c6, 0xff714b72, 0xff70b0ed,
+    0xff702232, 0xff6f9c90, 0xff6f1cee, 0xff6ea21f,
+    0xff6e2e9c, 0xff6dc617, 0xff6d6c09, 0xff6d2425,
+    0xff6cf267, 0xff6cdaca, 0xff6ce155, 0xff6d0983,
+    0xff6d56bb, 0xff6dcc4c, 0xff6e6cd0, 0xff6f3832,
+    0xff702cc4, 0xff71492e, 0xff728ae2, 0xff73ed63,
+    0xff756b7c, 0xff77001c, 0xff78a5d9, 0xff7a5693,
+    0xff7c0c40, 0xff7dc141, 0xff7f74aa, 0xff81298b,
+    0xff82e2de, 0xff84a3de, 0xff8670bd, 0xff884e42,
+    0xff8a410c, 0xff8c4c7f, 0xff8e70fc, 0xff90ae18,
+    0xff93037e, 0xff956f12, 0xff97ec86, 0xff9a7724,
+    0xff9d0a9d, 0xff9fa3ea, 0xffa2417e, 0xffa4e1ac,
+    0xffa78332, 0xffaa265a, 0xffaccc26, 0xffaf758e,
+    0xffb223d4, 0xffb4d906, 0xffb79726, 0xffba604e,
+    0xffbd349e, 0xffc011a8, 0xffc2f4d2, 0xffc5db82,
+    0xffc8c45f, 0xffcbaed5, 0xffce9a6d, 0xffd186c6,
+    0xffd473aa, 0xffd760e5, 0xffda4e55, 0xffdd3bd0,
+    0xffe0292b, 0xffe31645, 0xffe602ff, 0xffe8eef7,
+    0xffebd978, 0xffeec1bf, 0xfff1a72c, 0xfff488fe,
+    0xfff76689, 0xfffa3f2c, 0xfffd1245, 0xffffdf33,
+    0x000020ac, 0x0002e66f, 0x0005a937, 0x00086839,
+    0x000b22b3, 0x000dd7da, 0x001086ec, 0x00132f3c,
+    0x0015d001, 0x00186897, 0x001af849, 0x001d7eb6,
+    0x001ffbbe, 0x00226f41, 0x0024d8e8, 0x00273874,
+    0x00298d82, 0x002bd7aa, 0x002e16d4, 0x00304af6,
+    0x00327406, 0x00349203, 0x0036a416, 0x0038a893,
+    0x003a9da0, 0x003c8170, 0x003e53b8, 0x0040159a,
+    0x0041c816, 0x00436c92, 0x0045042c, 0x00468ff2,
+    0x00481106, 0x004987fe, 0x004af466, 0x004c5599,
+    0x004daae4, 0x004ef28c, 0x005029c4, 0x00514d9a,
+    0x00525b57, 0x005351f7, 0x00543190, 0x0054fa43,
+    0x0055ac2f, 0x00564938, 0x0056d3f7, 0x00574f3c,
+    0x0057bdd7, 0x00582260, 0x00587f28, 0x0058d6b1,
+    0x0059293c, 0x0059741a, 0x0059b472, 0x0059e73c,
+    0x005a0976, 0x005a1870, 0x005a116e, 0x0059f224,
+    0x0059b964, 0x005966ce, 0x0058f9e2, 0x005872e8,
+    0x0057d407, 0x00571f82, 0x005657b0, 0x00557ecd,
+    0x00549731, 0x0053a34b, 0x0052a56a, 0x00519fc6,
+    0x00509482, 0x004f85a4, 0x004e74ee, 0x004d6214,
+    0x004c4bd3, 0x004b314c, 0x004a1110, 0x0048e8c8,
+    0x0047b5f7, 0x00467626, 0x00452690, 0x0043c405,
+    0x00424b7f, 0x0040ba04, 0x003f0e53, 0x003d488b,
+    0x003b688c, 0x00396eb6, 0x00375dfb, 0x00353aaa,
+    0x003308ac, 0x0030ccb1, 0x002e8cf1, 0x002c4fd5,
+    0x002a1be8, 0x0027f486, 0x0025d90d, 0x0023c852,
+    0x0021c13b, 0x001fbf23, 0x001dbafc, 0x001badc6,
+    0x00199136, 0x00176150, 0x00151b86, 0x0012bcd1,
+    0x001044d1, 0x000db8d0, 0x000b1f43, 0x00087e89,
+    0x0005dbe2, 0x00033b1e, 0x00009fee, 0xfffe0d82,
+    0xfffb83cf, 0xfff90047, 0xfff6805a, 0xfff4019a,
+    0xfff18203, 0xffeeffb2, 0xffec78ba, 0xffe9ec4d,
+    0xffe75b4e, 0xffe4c71f, 0xffe23138, 0xffdf9ae6,
+    0xffdd0574, 0xffda723c, 0xffd7e24a, 0xffd55567,
+    0xffd2cabe, 0xffd04161, 0xffcdb890, 0xffcb306a,
+    0xffc8a95c, 0xffc62406, 0xffc3a140, 0xffc12188,
+    0xffbea542, 0xffbc2cc2, 0xffb9b7d2, 0xffb745f2,
+    0xffb4d6ac, 0xffb268fe, 0xffaffc72, 0xffad90e8,
+    0xffab263e, 0xffa8bcb8, 0xffa6547e, 0xffa3ed7b,
+    0xffa187ba, 0xff9f2351, 0xff9cc055, 0xff9a5ebc,
+    0xff97fe84, 0xff959f84, 0xff934146, 0xff90e37d,
+    0xff8e858a, 0xff8c26c0, 0xff89c69e, 0xff876483,
+    0xff84ffe4, 0xff82982b, 0xff802cb6, 0xff7dbccf,
+    0xff7b47b4, 0xff78ccd0, 0xff764b6c, 0xff73c2db,
+    0xff713227, 0xff6e9864, 0xff6bf470, 0xff694553,
+    0xff668a0d, 0xff63c1a6, 0xff60ec34, 0xff5e0e9e,
+    0xff5b30d3, 0xff585b8c, 0xff5595c9, 0xff52e1da,
+    0xff5040a0, 0xff4db31c, 0xff4b3a3b, 0xff48d67e,
+    0xff468850, 0xff445011, 0xff422ded, 0xff4021f9,
+    0xff3e2c56, 0xff3c4cf8, 0xff3a83df, 0xff38d0ec,
+    0xff3733c9, 0xff35ac14, 0xff343963, 0xff32db09,
+    0xff319066, 0xff305898, 0xff2f323d, 0xff2e1bb2,
+    0xff2d1369, 0xff2c18f8, 0xff2b2d2a, 0xff2a50e1,
+    0xff2984f4, 0xff28c978, 0xff281e01, 0xff278245,
+    0xff26f5c3, 0xff26785a, 0xff2609bf, 0xff25a9c8,
+    0xff255814, 0xff2513f6, 0xff24dcc4, 0xff24b1a6,
+    0xff2492b1, 0xff248093, 0xff247c0b, 0xff2485c6,
+    0xff249daf, 0xff24c359, 0xff24f639, 0xff253605,
+    0xff258312, 0xff25ddd5, 0xff2646e7, 0xff26be25,
+    0xff274264, 0xff27d1f6, 0xff286b19, 0xff290c13,
+    0xff29b30d, 0xff2a5e38, 0xff2b0bbd, 0xff2bb9a2,
+    0xff29a9d2, 0xff2a53dc, 0xff2b0a5a, 0xff2bcd43,
+    0xff2c9c76, 0xff2d7808, 0xff2e5ffa, 0xff2f544c,
+    0xff305528, 0xff316299, 0xff327ce0, 0xff33a432,
+    0xff34d8ba, 0xff361a8e, 0xff3768f8, 0xff38c2f5,
+    0xff3a2784, 0xff3b9623, 0xff3d0ef4, 0xff3e9277,
+    0xff4020ed, 0xff41ba14, 0xff435ccc, 0xff4507fd,
+    0xff46ba84, 0xff4873ac, 0xff4a32ea, 0xff4bf7bb,
+    0xff4dc17f, 0xff4f8fa0, 0xff516167, 0xff53361d,
+    0xff550d79, 0xff56e7ee, 0xff58c5ff, 0xff5aa84d,
+    0xff5c8e41, 0xff5e75e2, 0xff605d4d, 0xff6242b6,
+    0xff6424b8, 0xff66023d, 0xff67da44, 0xff69abd6,
+    0xff6b7646, 0xff6d38e8, 0xff6ef348, 0xff70a4ce,
+    0xff724d0f, 0xff73eb95, 0xff757fff, 0xff770a2d,
+    0xff788a20, 0xff79fff6, 0xff7b6be7, 0xff7cce52,
+    0xff7e27e4, 0xff7f78fc, 0xff80c38a, 0xff820e98,
+    0xff836378, 0xff84caaa, 0xff864990, 0xff87dff4,
+    0xff898c30, 0xff8b4cda, 0xff8d207a, 0xff8f05cc,
+    0xff90fb9b, 0xff930098, 0xff95138e, 0xff97332d,
+    0xff995e2a, 0xff9b934e, 0xff9dd18c, 0xffa017e3,
+    0xffa26550, 0xffa4b8e7, 0xffa711a8, 0xffa96eae,
+    0xffabcefc, 0xffae31cc, 0xffb09680, 0xffb2fc82,
+    0xffb5635a, 0xffb7ca52, 0xffba30a8, 0xffbc95a8,
+    0xffbef8a4, 0xffc158d0, 0xffc3b557, 0xffc60d6b,
+    0xffc86041, 0xffcaacb7, 0xffccf1cb, 0xffcf2e5c,
+    0xffd161e8, 0xffd38c8f, 0xffd5ae88, 0xffd7c808,
+    0xffd9d925, 0xffdbe1c8, 0xffdde1f3, 0xffdfd964,
+    0xffe1c79b, 0xffe3abcc, 0xffe5852a, 0xffe75341,
+    0xffe9162f, 0xffeace55, 0xffec7c15, 0xffee1f63,
+    0xffefb7e9, 0xfff1453d, 0xfff2c6fd, 0xfff43ca8,
+    0xfff5a5d4, 0xfff701ea, 0xfff850b4, 0xfff99288,
+    0xfffac853, 0xfffbf2d5, 0xfffd12e6, 0xfffe2991,
+    0xffff37e4, 0x00003eea, 0x00013ec4, 0x00023646,
+    0x0003244d, 0x00040797, 0x0004de8c, 0x0005a734,
+    0x00065fab, 0x0007068f, 0x00079c82, 0x000822fa,
+    0x00089b70, 0x000907a6, 0x00096a01, 0x0009c506,
+    0x000a1b37, 0x000a6e18, 0x000abe1f, 0x000b0bac,
+    0x000b5701, 0x000b9f3b, 0x000be2c2, 0x000c1fff,
+    0x000c5599, 0x000c829a, 0x000ca661, 0x000cc058,
+    0x000cd028, 0x000cd63d, 0x000cd317, 0x000cc739,
+    0x000cb36d, 0x000c98c0, 0x000c7833, 0x000c52df,
+    0x000c2984, 0x000bfcf9, 0x000bcdea, 0x000b9cf7,
+    0x000b6a97, 0x000b3700, 0x000b029d, 0x000acd79,
+    0x000a977e, 0x000a6076, 0x000a2838, 0x0009eea1,
+    0x0009b37d, 0x000976c2, 0x0009384e, 0x0008f816,
+    0x0008b612, 0x0008724a, 0x00082cd5, 0x0007e5e8,
+    0x00079dce, 0x000754de, 0x00070b62, 0x0006c1c6,
+    0x0006786a, 0x00062fba, 0x0005e801, 0x0005a1a0,
+    0x00055ce1, 0x000519fb, 0x0004d8f8, 0x000499b8,
+    0x00045c30, 0x00042040, 0x0003e5c8, 0x0003acb3,
+    0x000374df, 0x00033e59, 0x00030934, 0x0002d57d,
+    0x0002a348, 0x000272b6, 0x000243f2, 0x00021711,
+    0x0001ec3e, 0x0001c37a, 0x00019cc3, 0x00017830,
+    0x000155a0, 0x00013514, 0x0001168b, 0x0000f9e6,
+    0x0000df23, 0x0000c62e, 0x0000aef2, 0x00009978,
+    0x000085a1, 0x0000736d, 0x000062dc, 0x000053d8,
+    0x0000466c, 0x00003a62, 0x00002fd1, 0x00002681,
+    0x00001e73, 0x00001792, 0x000011c9, 0x00000cf6,
+    0x0000091a, 0x000005ff, 0x000003b1, 0x00000203,
+    0x000000d7, 0x0000002b, 0xffffffd5, 0xffffffc0,
+    0xffffffd5, 0x00000000, 0x00000015, 0x00000000,
+    0x00000000, 0x00000015, 0x00000000, 0xffffffd5,
+    0xffffffca, 0xffffffd5, 0x0000002b, 0x000000cc,
+    0x000001e3, 0x0000037b, 0x0000059f, 0x0000086e,
+    0x00000bf4, 0x0000103b, 0x00001564, 0x00001b6e,
+    0x0000226f, 0x00002a68, 0x00003377, 0x00003d93,
+    0x000048c5, 0x00005525, 0x000062a6, 0x00007155,
+    0x0000812f, 0x00009237, 0x0000a455, 0x0000b7ab,
+    0x0000cc18, 0x0000e1bd, 0x0000f878, 0x0001106c,
+    0x00012981, 0x000143c2, 0x00015f30, 0x00017bb6,
+    0x00019948, 0x0001b7e6, 0x0001d771, 0x0001f7bc,
+    0x000218b4, 0x00023a42, 0x00025c3b, 0x00027ea0,
+    0x0002a150, 0x0002c440, 0x0002e771, 0x00030aed,
+    0x00032eb4, 0x000352db, 0x00037759, 0x00039c4c,
+    0x0003c1ac, 0x0003e74b, 0x00040d00, 0x0004329f,
+    0x000457de, 0x00047c9c, 0x0004a083, 0x0004c35e,
+    0x0004e502, 0x00050543, 0x000523ec, 0x000540e7,
+    0x00055c2b, 0x000575c0, 0x00058da9, 0x0005a3e4,
+    0x0005b886, 0x0005cbb1, 0x0005dd65, 0x0005edcb,
+    0x0005fcfa, 0x00060afc, 0x00061808, 0x000623fc,
+    0x00062ec3, 0x00063849, 0x0006404b, 0x000646ac,
+    0x00064b13, 0x00064d37, 0x00064cd6, 0x0006497b,
+    0x000642c5, 0x0006385e, 0x000629f0, 0x00061766,
+    0x000600a0, 0x0005e57d, 0x0005c63e, 0x0005a322,
+    0x00057c97, 0x00055306, 0x00052711, 0x0004f96f,
+    0x0004caeb, 0x00049bfc, 0x00046c96, 0x00043cbb,
+    0x00040c3f, 0x0003daab, 0x0003a734, 0x000370f9,
+    0x0003372d, 0x0002f944, 0x0002b6d4, 0x00026f71,
+    0x000222fb, 0x0001d212, 0x00017d84, 0x00012630,
+    0x0000ccda, 0x00007200, 0x0000163b, 0xffffba15,
+    0xffff5da3, 0xffff0091, 0xfffea293, 0xfffe4367,
+    0xfffde2da, 0xfffd809f, 0xfffd1c81, 0xfffcb66a,
+    0xfffc4e90, 0xfffbe53e, 0xfffb7aa0, 0xfffb0f0a,
+    0xfffaa2c9, 0xfffa3612, 0xfff9c92f, 0xfff95c2d,
+    0xfff8eef4, 0xfff8817c, 0xfff813c3, 0xfff7a5d4,
+    0xfff737e5, 0xfff6ca17, 0xfff65c9e, 0xfff5efbc,
+    0xfff58390, 0xfff51830, 0xfff4adbc, 0xfff44435,
+    0xfff3db9a, 0xfff373d6, 0xfff30cfd, 0xfff2a71c,
+    0xfff24248, 0xfff1de9f, 0xfff17c44, 0xfff11b56,
+    0xfff0bbea, 0xfff05e17, 0xfff00206, 0xffefa7d9,
+    0xffef4f99, 0xffeef95d, 0xffeea53a, 0xffee533a,
+    0xffee035e, 0xffedb5b0, 0xffed6a3c, 0xffed20f5,
+    0xffecd9fe, 0xffec9555, 0xffec5305, 0xffec1319,
+    0xffebd591, 0xffeb9a83, 0xffeb61f9, 0xffeb2bfe,
+    0xffeaf89c, 0xffeac7ea, 0xffea99d2, 0xffea6e7e,
+    0xffea45ef, 0xffea203a, 0xffe9fda0, 0xffe9decc,
+    0xffe9c3de, 0xffe9ac56, 0xffe99789, 0xffe9845e,
+    0xffe97295, 0xffe96219, 0xffe952ea, 0xffe944f3,
+    0xffe93833, 0xffe92c9f, 0xffe92238, 0xffe918fe,
+    0xffe910fb, 0xffe90a3a, 0xffe904c6, 0xffe900a0,
+    0xffe8fddb, 0xffe8fc83, 0xffe8fca4, 0xffe8fe3c,
+    0xffe9016c, 0xffe9061e, 0xffe90c74, 0xffe9146c,
+    0xffe91e11, 0xffe929a5, 0xffe93731, 0xffe946c0,
+    0xffe95833, 0xffe96b7e, 0xffe98082, 0xffe9975e,
+    0xffe9affd, 0xffe9ca5e, 0xffe9e68e, 0xffea0481,
+    0xffea242b, 0xffea458e, 0xffea6894, 0xffea8d52,
+    0xffeab3c8, 0xffeadc0c, 0xffeb05fe, 0xffeb31a7,
+    0xffeb5ede, 0xffeb8da2, 0xffebbdf4, 0xffebefbd,
+    0xffec231f, 0xffec5802, 0xffec8e5e, 0xffecc61c,
+    0xffecff1c, 0xffed391e, 0xffed740c, 0xffedafb1,
+    0xffedebe1, 0xffee287d, 0xffee654e, 0xffeea23f,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aactab.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aactab.h
new file mode 100644
index 000000000..7cd812823
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aactab.h
@@ -0,0 +1,186 @@
+/*
+ * AAC data declarations
+ * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
+ * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC data declarations
+ * @author Oded Shimon  ( ods15 ods15 dyndns org )
+ * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
+ */
+
+#ifndef AVCODEC_AACTAB_H
+#define AVCODEC_AACTAB_H
+
+#include "libavutil/mem.h"
+#include "aac.h"
+
+#include <stdint.h>
+
+/* NOTE:
+ * Tables in this file are shared by the AAC decoders and encoder
+ */
+
+extern float ff_aac_pow2sf_tab[428];
+extern float ff_aac_pow34sf_tab[428];
+
+static inline void ff_aac_tableinit(void)
+{
+    int i;
+
+    /* 2^(i/16) for 0 <= i <= 15 */
+    static const float exp2_lut[] = {
+        1.00000000000000000000,
+        1.04427378242741384032,
+        1.09050773266525765921,
+        1.13878863475669165370,
+        1.18920711500272106672,
+        1.24185781207348404859,
+        1.29683955465100966593,
+        1.35425554693689272830,
+        1.41421356237309504880,
+        1.47682614593949931139,
+        1.54221082540794082361,
+        1.61049033194925430818,
+        1.68179283050742908606,
+        1.75625216037329948311,
+        1.83400808640934246349,
+        1.91520656139714729387,
+    };
+    float t1 = 8.8817841970012523233890533447265625e-16; // 2^(-50)
+    float t2 = 3.63797880709171295166015625e-12; // 2^(-38)
+    int t1_inc_cur, t2_inc_cur;
+    int t1_inc_prev = 0;
+    int t2_inc_prev = 8;
+
+    for (i = 0; i < 428; i++) {
+        t1_inc_cur = 4 * (i % 4);
+        t2_inc_cur = (8 + 3*i) % 16;
+        if (t1_inc_cur < t1_inc_prev)
+            t1 *= 2;
+        if (t2_inc_cur < t2_inc_prev)
+            t2 *= 2;
+        // A much more efficient and accurate way of doing:
+        // ff_aac_pow2sf_tab[i] = pow(2, (i - POW_SF2_ZERO) / 4.0);
+        // ff_aac_pow34sf_tab[i] = pow(ff_aac_pow2sf_tab[i], 3.0/4.0);
+        ff_aac_pow2sf_tab[i] = t1 * exp2_lut[t1_inc_cur];
+        ff_aac_pow34sf_tab[i] = t2 * exp2_lut[t2_inc_cur];
+        t1_inc_prev = t1_inc_cur;
+        t2_inc_prev = t2_inc_cur;
+    }
+}
+
+/* @name ltp_coef
+ * Table of the LTP coefficients
+ */
+static const INTFLOAT ltp_coef[8] = {
+    Q30(0.570829), Q30(0.696616), Q30(0.813004), Q30(0.911304),
+    Q30(0.984900), Q30(1.067894), Q30(1.194601), Q30(1.369533),
+};
+
+/* @name tns_tmp2_map
+ * Tables of the tmp2[] arrays of LPC coefficients used for TNS.
+ * The suffix _M_N[] indicate the values of coef_compress and coef_res
+ * respectively.
+ * @{
+ */
+static const INTFLOAT tns_tmp2_map_1_3[4] = {
+    Q31(0.00000000), Q31(-0.43388373),  Q31(0.64278758),  Q31(0.34202015),
+};
+
+static const INTFLOAT tns_tmp2_map_0_3[8] = {
+    Q31(0.00000000), Q31(-0.43388373), Q31(-0.78183150), Q31(-0.97492790),
+    Q31(0.98480773), Q31( 0.86602539), Q31( 0.64278758), Q31( 0.34202015),
+};
+
+static const INTFLOAT tns_tmp2_map_1_4[8] = {
+    Q31(0.00000000), Q31(-0.20791170), Q31(-0.40673664), Q31(-0.58778524),
+    Q31(0.67369562), Q31( 0.52643216), Q31( 0.36124167), Q31( 0.18374951),
+};
+
+static const INTFLOAT tns_tmp2_map_0_4[16] = {
+    Q31( 0.00000000), Q31(-0.20791170), Q31(-0.40673664), Q31(-0.58778524),
+    Q31(-0.74314481), Q31(-0.86602539), Q31(-0.95105654), Q31(-0.99452192),
+    Q31( 0.99573416), Q31( 0.96182561), Q31( 0.89516330), Q31( 0.79801720),
+    Q31( 0.67369562), Q31( 0.52643216), Q31( 0.36124167), Q31( 0.18374951),
+};
+
+static const INTFLOAT * const tns_tmp2_map[4] = {
+    tns_tmp2_map_0_3,
+    tns_tmp2_map_0_4,
+    tns_tmp2_map_1_3,
+    tns_tmp2_map_1_4
+};
+// @}
+
+/* @name window coefficients
+ * @{
+ */
+DECLARE_ALIGNED(32, extern float,  ff_aac_kbd_long_1024)[1024];
+DECLARE_ALIGNED(32, extern float,  ff_aac_kbd_short_128)[128];
+DECLARE_ALIGNED(32, extern float,  ff_aac_kbd_long_960)[960];
+DECLARE_ALIGNED(32, extern float,  ff_aac_kbd_short_120)[120];
+DECLARE_ALIGNED(32, extern int,    ff_aac_kbd_long_1024_fixed)[1024];
+DECLARE_ALIGNED(32, extern int,    ff_aac_kbd_long_512_fixed)[512];
+DECLARE_ALIGNED(32, extern int,    ff_aac_kbd_short_128_fixed)[128];
+DECLARE_ALIGNED(32, extern const float, ff_aac_eld_window_512)[1920];
+DECLARE_ALIGNED(32, extern const int,   ff_aac_eld_window_512_fixed)[1920];
+DECLARE_ALIGNED(32, extern const float, ff_aac_eld_window_480)[1800];
+DECLARE_ALIGNED(32, extern const int,   ff_aac_eld_window_480_fixed)[1800];
+// @}
+
+/* @name number of scalefactor window bands for long and short transform windows respectively
+ * @{
+ */
+extern const uint8_t ff_aac_num_swb_1024[];
+extern const uint8_t ff_aac_num_swb_960 [];
+extern const uint8_t ff_aac_num_swb_512 [];
+extern const uint8_t ff_aac_num_swb_480 [];
+extern const uint8_t ff_aac_num_swb_128 [];
+extern const uint8_t ff_aac_num_swb_120 [];
+// @}
+
+extern const uint8_t ff_aac_pred_sfb_max [];
+
+extern const uint32_t ff_aac_scalefactor_code[121];
+extern const uint8_t  ff_aac_scalefactor_bits[121];
+
+extern const uint16_t * const ff_aac_spectral_codes[11];
+extern const uint8_t  * const ff_aac_spectral_bits [11];
+extern const uint16_t  ff_aac_spectral_sizes[11];
+
+extern const float *ff_aac_codebook_vectors[];
+extern const float *ff_aac_codebook_vector_vals[];
+extern const uint16_t *ff_aac_codebook_vector_idx[];
+
+extern const uint16_t * const ff_swb_offset_1024[13];
+extern const uint16_t * const ff_swb_offset_960 [13];
+extern const uint16_t * const ff_swb_offset_512 [13];
+extern const uint16_t * const ff_swb_offset_480 [13];
+extern const uint16_t * const ff_swb_offset_128 [13];
+extern const uint16_t * const ff_swb_offset_120 [13];
+
+extern const uint8_t ff_tns_max_bands_1024[13];
+extern const uint8_t ff_tns_max_bands_512 [13];
+extern const uint8_t ff_tns_max_bands_480 [13];
+extern const uint8_t ff_tns_max_bands_128 [13];
+
+#endif /* AVCODEC_AACTAB_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/Makefile b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/Makefile
new file mode 100644
index 000000000..00f93bf59
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/Makefile
@@ -0,0 +1,60 @@
+# subsystems
+OBJS-$(CONFIG_FFT)                      += aarch64/fft_init_aarch64.o
+OBJS-$(CONFIG_FMTCONVERT)               += aarch64/fmtconvert_init.o
+OBJS-$(CONFIG_H264CHROMA)               += aarch64/h264chroma_init_aarch64.o
+OBJS-$(CONFIG_H264DSP)                  += aarch64/h264dsp_init_aarch64.o
+OBJS-$(CONFIG_H264PRED)                 += aarch64/h264pred_init.o
+OBJS-$(CONFIG_H264QPEL)                 += aarch64/h264qpel_init_aarch64.o
+OBJS-$(CONFIG_HPELDSP)                  += aarch64/hpeldsp_init_aarch64.o
+OBJS-$(CONFIG_MPEGAUDIODSP)             += aarch64/mpegaudiodsp_init.o
+OBJS-$(CONFIG_NEON_CLOBBER_TEST)        += aarch64/neontest.o
+OBJS-$(CONFIG_VIDEODSP)                 += aarch64/videodsp_init.o
+OBJS-$(CONFIG_VP8DSP)                   += aarch64/vp8dsp_init_aarch64.o
+
+# decoders/encoders
+OBJS-$(CONFIG_AAC_DECODER)              += aarch64/aacpsdsp_init_aarch64.o \
+                                           aarch64/sbrdsp_init_aarch64.o
+OBJS-$(CONFIG_DCA_DECODER)              += aarch64/synth_filter_init.o
+OBJS-$(CONFIG_OPUS_DECODER)             += aarch64/opusdsp_init.o
+OBJS-$(CONFIG_RV40_DECODER)             += aarch64/rv40dsp_init_aarch64.o
+OBJS-$(CONFIG_VC1DSP)                   += aarch64/vc1dsp_init_aarch64.o
+OBJS-$(CONFIG_VORBIS_DECODER)           += aarch64/vorbisdsp_init.o
+OBJS-$(CONFIG_VP9_DECODER)              += aarch64/vp9dsp_init_10bpp_aarch64.o \
+                                           aarch64/vp9dsp_init_12bpp_aarch64.o \
+                                           aarch64/vp9dsp_init_aarch64.o
+
+# ARMv8 optimizations
+
+# subsystems
+ARMV8-OBJS-$(CONFIG_VIDEODSP)           += aarch64/videodsp.o
+
+# NEON optimizations
+
+# subsystems
+NEON-OBJS-$(CONFIG_AAC_DECODER)         += aarch64/sbrdsp_neon.o
+NEON-OBJS-$(CONFIG_FFT)                 += aarch64/fft_neon.o
+NEON-OBJS-$(CONFIG_FMTCONVERT)          += aarch64/fmtconvert_neon.o
+NEON-OBJS-$(CONFIG_H264CHROMA)          += aarch64/h264cmc_neon.o
+NEON-OBJS-$(CONFIG_H264DSP)             += aarch64/h264dsp_neon.o              \
+                                           aarch64/h264idct_neon.o
+NEON-OBJS-$(CONFIG_H264PRED)            += aarch64/h264pred_neon.o
+NEON-OBJS-$(CONFIG_H264QPEL)            += aarch64/h264qpel_neon.o             \
+                                           aarch64/hpeldsp_neon.o
+NEON-OBJS-$(CONFIG_HPELDSP)             += aarch64/hpeldsp_neon.o
+NEON-OBJS-$(CONFIG_IDCTDSP)             += aarch64/idctdsp_init_aarch64.o      \
+                                           aarch64/simple_idct_neon.o
+NEON-OBJS-$(CONFIG_MDCT)                += aarch64/mdct_neon.o
+NEON-OBJS-$(CONFIG_MPEGAUDIODSP)        += aarch64/mpegaudiodsp_neon.o
+NEON-OBJS-$(CONFIG_VP8DSP)              += aarch64/vp8dsp_neon.o
+
+# decoders/encoders
+NEON-OBJS-$(CONFIG_AAC_DECODER)         += aarch64/aacpsdsp_neon.o
+NEON-OBJS-$(CONFIG_DCA_DECODER)         += aarch64/synth_filter_neon.o
+NEON-OBJS-$(CONFIG_OPUS_DECODER)        += aarch64/opusdsp_neon.o
+NEON-OBJS-$(CONFIG_VORBIS_DECODER)      += aarch64/vorbisdsp_neon.o
+NEON-OBJS-$(CONFIG_VP9_DECODER)         += aarch64/vp9itxfm_16bpp_neon.o       \
+                                           aarch64/vp9itxfm_neon.o             \
+                                           aarch64/vp9lpf_16bpp_neon.o         \
+                                           aarch64/vp9lpf_neon.o               \
+                                           aarch64/vp9mc_16bpp_neon.o          \
+                                           aarch64/vp9mc_neon.o
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/aacpsdsp_init_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/aacpsdsp_init_aarch64.c
new file mode 100644
index 000000000..5e7e19bba
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/aacpsdsp_init_aarch64.c
@@ -0,0 +1,48 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/aacpsdsp.h"
+
+void ff_ps_add_squares_neon(float *dst, const float (*src)[2], int n);
+void ff_ps_mul_pair_single_neon(float (*dst)[2], float (*src0)[2],
+                                float *src1, int n);
+void ff_ps_hybrid_analysis_neon(float (*out)[2], float (*in)[2],
+                                const float (*filter)[8][2],
+                                ptrdiff_t stride, int n);
+void ff_ps_stereo_interpolate_neon(float (*l)[2], float (*r)[2],
+                                   float h[2][4], float h_step[2][4],
+                                   int len);
+void ff_ps_stereo_interpolate_ipdopd_neon(float (*l)[2], float (*r)[2],
+                                          float h[2][4], float h_step[2][4],
+                                          int len);
+
+av_cold void ff_psdsp_init_aarch64(PSDSPContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        s->add_squares           = ff_ps_add_squares_neon;
+        s->mul_pair_single       = ff_ps_mul_pair_single_neon;
+        s->hybrid_analysis       = ff_ps_hybrid_analysis_neon;
+        s->stereo_interpolate[0] = ff_ps_stereo_interpolate_neon;
+        s->stereo_interpolate[1] = ff_ps_stereo_interpolate_ipdopd_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/asm-offsets.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/asm-offsets.h
new file mode 100644
index 000000000..fc38eed29
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/asm-offsets.h
@@ -0,0 +1,25 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AARCH64_ASM_OFFSETS_H
+#define AVCODEC_AARCH64_ASM_OFFSETS_H
+
+/* FFTContext */
+#define IMDCT_HALF                      0x48
+
+#endif /* AVCODEC_AARCH64_ASM_OFFSETS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/cabac.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/cabac.h
new file mode 100644
index 000000000..6b9b77eb3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/cabac.h
@@ -0,0 +1,104 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AARCH64_CABAC_H
+#define AVCODEC_AARCH64_CABAC_H
+
+#include "config.h"
+#if HAVE_INLINE_ASM
+
+#include "libavutil/attributes.h"
+#include "libavutil/internal.h"
+#include "libavcodec/cabac.h"
+
+#define get_cabac_inline get_cabac_inline_aarch64
+static av_always_inline int get_cabac_inline_aarch64(CABACContext *c,
+                                                     uint8_t *const state)
+{
+    int bit;
+    void *reg_a, *reg_b, *reg_c, *tmp;
+
+    __asm__ volatile(
+        "ldrb       %w[bit]       , [%[state]]                  \n\t"
+        "add        %[r_b]        , %[tables]   , %[lps_off]    \n\t"
+        "mov        %w[tmp]       , %w[range]                   \n\t"
+        "and        %w[range]     , %w[range]   , #0xC0         \n\t"
+        "lsl        %w[r_c]       , %w[range]   , #1            \n\t"
+        "add        %[r_b]        , %[r_b]      , %w[bit], UXTW \n\t"
+        "ldrb       %w[range]     , [%[r_b], %w[r_c], SXTW]     \n\t"
+        "sub        %w[r_c]       , %w[tmp]     , %w[range]     \n\t"
+        "lsl        %w[tmp]       , %w[r_c]     , #17           \n\t"
+        "cmp        %w[tmp]       , %w[low]                     \n\t"
+        "csel       %w[tmp]       , %w[tmp]     , wzr      , cc \n\t"
+        "csel       %w[range]     , %w[r_c]     , %w[range], gt \n\t"
+        "cinv       %w[bit]       , %w[bit]     , cc            \n\t"
+        "sub        %w[low]       , %w[low]     , %w[tmp]       \n\t"
+        "add        %[r_b]        , %[tables]   , %[norm_off]   \n\t"
+        "add        %[r_a]        , %[tables]   , %[mlps_off]   \n\t"
+        "ldrb       %w[tmp]       , [%[r_b], %w[range], SXTW]   \n\t"
+        "ldrb       %w[r_a]       , [%[r_a], %w[bit], SXTW]     \n\t"
+        "lsl        %w[low]       , %w[low]     , %w[tmp]       \n\t"
+        "lsl        %w[range]     , %w[range]   , %w[tmp]       \n\t"
+        "uxth       %w[r_c]       , %w[low]                     \n\t"
+        "strb       %w[r_a]       , [%[state]]                  \n\t"
+        "cbnz       %w[r_c]       , 2f                          \n\t"
+        "ldr        %[r_c]        , [%[c], %[byte]]             \n\t"
+        "ldr        %[r_a]        , [%[c], %[end]]              \n\t"
+        "ldrh       %w[tmp]       , [%[r_c]]                    \n\t"
+        "cmp        %[r_c]        , %[r_a]                      \n\t"
+        "b.ge       1f                                          \n\t"
+        "add        %[r_a]        , %[r_c]      , #2            \n\t"
+        "str        %[r_a]        , [%[c], %[byte]]             \n\t"
+        "1:                                                     \n\t"
+        "sub        %w[r_c]       , %w[low]     , #1            \n\t"
+        "eor        %w[r_c]       , %w[r_c]     , %w[low]       \n\t"
+        "rev        %w[tmp]       , %w[tmp]                     \n\t"
+        "lsr        %w[r_c]       , %w[r_c]     , #15           \n\t"
+        "lsr        %w[tmp]       , %w[tmp]     , #15           \n\t"
+        "ldrb       %w[r_c]       , [%[r_b], %w[r_c], SXTW]     \n\t"
+        "mov        %w[r_b]       , #0xFFFF                     \n\t"
+        "mov        %w[r_a]       , #7                          \n\t"
+        "sub        %w[tmp]       , %w[tmp]     , %w[r_b]       \n\t"
+        "sub        %w[r_c]       , %w[r_a]     , %w[r_c]       \n\t"
+        "lsl        %w[tmp]       , %w[tmp]     , %w[r_c]       \n\t"
+        "add        %w[low]       , %w[low]     , %w[tmp]       \n\t"
+        "2:                                                     \n\t"
+        :    [bit]"=&r"(bit),
+             [low]"+&r"(c->low),
+           [range]"+&r"(c->range),
+             [r_a]"=&r"(reg_a),
+             [r_b]"=&r"(reg_b),
+             [r_c]"=&r"(reg_c),
+             [tmp]"=&r"(tmp)
+        :        [c]"r"(c),
+             [state]"r"(state),
+            [tables]"r"(ff_h264_cabac_tables),
+              [byte]"i"(offsetof(CABACContext, bytestream)),
+               [end]"i"(offsetof(CABACContext, bytestream_end)),
+          [norm_off]"I"(H264_NORM_SHIFT_OFFSET),
+           [lps_off]"I"(H264_LPS_RANGE_OFFSET),
+          [mlps_off]"I"(H264_MLPS_STATE_OFFSET + 128)
+        : "memory", "cc"
+        );
+
+    return bit & 1;
+}
+
+#endif /* HAVE_INLINE_ASM */
+
+#endif /* AVCODEC_AARCH64_CABAC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/fft_init_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/fft_init_aarch64.c
new file mode 100644
index 000000000..db285205a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/fft_init_aarch64.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+
+#include "libavcodec/fft.h"
+
+void ff_fft_permute_neon(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_neon(FFTContext *s, FFTComplex *z);
+
+void ff_imdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_half_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
+void ff_mdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
+
+av_cold void ff_fft_init_aarch64(FFTContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        s->fft_permute  = ff_fft_permute_neon;
+        s->fft_calc     = ff_fft_calc_neon;
+#if CONFIG_MDCT
+        s->imdct_calc   = ff_imdct_calc_neon;
+        s->imdct_half   = ff_imdct_half_neon;
+        s->mdct_calc    = ff_mdct_calc_neon;
+        s->mdct_permutation = FF_MDCT_PERM_INTERLEAVE;
+#endif
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/fmtconvert_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/fmtconvert_init.c
new file mode 100644
index 000000000..210e74b65
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/fmtconvert_init.c
@@ -0,0 +1,43 @@
+/*
+ * ARM optimized Format Conversion Utils
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/fmtconvert.h"
+
+void ff_int32_to_float_fmul_array8_neon(FmtConvertContext *c, float *dst,
+                                        const int32_t *src, const float *mul,
+                                        int len);
+void ff_int32_to_float_fmul_scalar_neon(float *dst, const int32_t *src,
+                                        float mul, int len);
+
+av_cold void ff_fmt_convert_init_aarch64(FmtConvertContext *c,
+                                         AVCodecContext *avctx)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        c->int32_to_float_fmul_array8 = ff_int32_to_float_fmul_array8_neon;
+        c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/h264chroma_init_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/h264chroma_init_aarch64.c
new file mode 100644
index 000000000..fa6e0eaf1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/h264chroma_init_aarch64.c
@@ -0,0 +1,59 @@
+/*
+ * ARM NEON optimised H.264 chroma functions
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/h264chroma.h"
+
+#include "config.h"
+
+void ff_put_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                 int h, int x, int y);
+void ff_put_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                 int h, int x, int y);
+void ff_put_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                 int h, int x, int y);
+
+void ff_avg_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                 int h, int x, int y);
+void ff_avg_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                 int h, int x, int y);
+void ff_avg_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                 int h, int x, int y);
+
+av_cold void ff_h264chroma_init_aarch64(H264ChromaContext *c, int bit_depth)
+{
+    const int high_bit_depth = bit_depth > 8;
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags) && !high_bit_depth) {
+        c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_neon;
+        c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_neon;
+        c->put_h264_chroma_pixels_tab[2] = ff_put_h264_chroma_mc2_neon;
+
+        c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_neon;
+        c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_neon;
+        c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/h264dsp_init_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/h264dsp_init_aarch64.c
new file mode 100644
index 000000000..d5baccf23
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/h264dsp_init_aarch64.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/h264dsp.h"
+
+void ff_h264_v_loop_filter_luma_neon(uint8_t *pix, ptrdiff_t stride, int alpha,
+                                     int beta, int8_t *tc0);
+void ff_h264_h_loop_filter_luma_neon(uint8_t *pix, ptrdiff_t stride, int alpha,
+                                     int beta, int8_t *tc0);
+void ff_h264_v_loop_filter_luma_intra_neon(uint8_t *pix, ptrdiff_t stride, int alpha,
+                                           int beta);
+void ff_h264_h_loop_filter_luma_intra_neon(uint8_t *pix, ptrdiff_t stride, int alpha,
+                                           int beta);
+void ff_h264_v_loop_filter_chroma_neon(uint8_t *pix, ptrdiff_t stride, int alpha,
+                                       int beta, int8_t *tc0);
+void ff_h264_h_loop_filter_chroma_neon(uint8_t *pix, ptrdiff_t stride, int alpha,
+                                       int beta, int8_t *tc0);
+void ff_h264_h_loop_filter_chroma422_neon(uint8_t *pix, ptrdiff_t stride, int alpha,
+                                          int beta, int8_t *tc0);
+void ff_h264_v_loop_filter_chroma_intra_neon(uint8_t *pix, ptrdiff_t stride,
+                                             int alpha, int beta);
+void ff_h264_h_loop_filter_chroma_intra_neon(uint8_t *pix, ptrdiff_t stride,
+                                             int alpha, int beta);
+void ff_h264_h_loop_filter_chroma422_intra_neon(uint8_t *pix, ptrdiff_t stride,
+                                                int alpha, int beta);
+void ff_h264_h_loop_filter_chroma_mbaff_intra_neon(uint8_t *pix, ptrdiff_t stride,
+                                                   int alpha, int beta);
+
+void ff_weight_h264_pixels_16_neon(uint8_t *dst, ptrdiff_t stride, int height,
+                                   int log2_den, int weight, int offset);
+void ff_weight_h264_pixels_8_neon(uint8_t *dst, ptrdiff_t stride, int height,
+                                  int log2_den, int weight, int offset);
+void ff_weight_h264_pixels_4_neon(uint8_t *dst, ptrdiff_t stride, int height,
+                                  int log2_den, int weight, int offset);
+
+void ff_biweight_h264_pixels_16_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                     int height, int log2_den, int weightd,
+                                     int weights, int offset);
+void ff_biweight_h264_pixels_8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                    int height, int log2_den, int weightd,
+                                    int weights, int offset);
+void ff_biweight_h264_pixels_4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                    int height, int log2_den, int weightd,
+                                    int weights, int offset);
+
+void ff_h264_idct_add_neon(uint8_t *dst, int16_t *block, int stride);
+void ff_h264_idct_dc_add_neon(uint8_t *dst, int16_t *block, int stride);
+void ff_h264_idct_add16_neon(uint8_t *dst, const int *block_offset,
+                             int16_t *block, int stride,
+                             const uint8_t nnzc[6*8]);
+void ff_h264_idct_add16intra_neon(uint8_t *dst, const int *block_offset,
+                                  int16_t *block, int stride,
+                                  const uint8_t nnzc[6*8]);
+void ff_h264_idct_add8_neon(uint8_t **dest, const int *block_offset,
+                            int16_t *block, int stride,
+                            const uint8_t nnzc[6*8]);
+
+void ff_h264_idct8_add_neon(uint8_t *dst, int16_t *block, int stride);
+void ff_h264_idct8_dc_add_neon(uint8_t *dst, int16_t *block, int stride);
+void ff_h264_idct8_add4_neon(uint8_t *dst, const int *block_offset,
+                             int16_t *block, int stride,
+                             const uint8_t nnzc[6*8]);
+
+av_cold void ff_h264dsp_init_aarch64(H264DSPContext *c, const int bit_depth,
+                                     const int chroma_format_idc)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags) && bit_depth == 8) {
+        c->h264_v_loop_filter_luma   = ff_h264_v_loop_filter_luma_neon;
+        c->h264_h_loop_filter_luma   = ff_h264_h_loop_filter_luma_neon;
+        c->h264_v_loop_filter_luma_intra= ff_h264_v_loop_filter_luma_intra_neon;
+        c->h264_h_loop_filter_luma_intra= ff_h264_h_loop_filter_luma_intra_neon;
+
+        c->h264_v_loop_filter_chroma = ff_h264_v_loop_filter_chroma_neon;
+        c->h264_v_loop_filter_chroma_intra = ff_h264_v_loop_filter_chroma_intra_neon;
+
+        if (chroma_format_idc <= 1) {
+            c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma_neon;
+            c->h264_h_loop_filter_chroma_intra = ff_h264_h_loop_filter_chroma_intra_neon;
+            c->h264_h_loop_filter_chroma_mbaff_intra = ff_h264_h_loop_filter_chroma_mbaff_intra_neon;
+        } else {
+            c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma422_neon;
+            c->h264_h_loop_filter_chroma_mbaff = ff_h264_h_loop_filter_chroma_neon;
+            c->h264_h_loop_filter_chroma_intra = ff_h264_h_loop_filter_chroma422_intra_neon;
+            c->h264_h_loop_filter_chroma_mbaff_intra = ff_h264_h_loop_filter_chroma_intra_neon;
+        }
+
+        c->weight_h264_pixels_tab[0] = ff_weight_h264_pixels_16_neon;
+        c->weight_h264_pixels_tab[1] = ff_weight_h264_pixels_8_neon;
+        c->weight_h264_pixels_tab[2] = ff_weight_h264_pixels_4_neon;
+
+        c->biweight_h264_pixels_tab[0] = ff_biweight_h264_pixels_16_neon;
+        c->biweight_h264_pixels_tab[1] = ff_biweight_h264_pixels_8_neon;
+        c->biweight_h264_pixels_tab[2] = ff_biweight_h264_pixels_4_neon;
+
+        c->h264_idct_add        = ff_h264_idct_add_neon;
+        c->h264_idct_dc_add     = ff_h264_idct_dc_add_neon;
+        c->h264_idct_add16      = ff_h264_idct_add16_neon;
+        c->h264_idct_add16intra = ff_h264_idct_add16intra_neon;
+        if (chroma_format_idc <= 1)
+            c->h264_idct_add8   = ff_h264_idct_add8_neon;
+        c->h264_idct8_add       = ff_h264_idct8_add_neon;
+        c->h264_idct8_dc_add    = ff_h264_idct8_dc_add_neon;
+        c->h264_idct8_add4      = ff_h264_idct8_add4_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/h264pred_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/h264pred_init.c
new file mode 100644
index 000000000..b144376f9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/h264pred_init.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/h264pred.h"
+
+void ff_pred16x16_vert_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_hor_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_plane_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_128_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_left_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_top_dc_neon(uint8_t *src, ptrdiff_t stride);
+
+void ff_pred8x8_vert_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_hor_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_plane_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_128_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_left_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_top_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_l0t_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_0lt_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_l00_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_0l0_dc_neon(uint8_t *src, ptrdiff_t stride);
+
+static av_cold void h264_pred_init_neon(H264PredContext *h, int codec_id,
+                                        const int bit_depth,
+                                        const int chroma_format_idc)
+{
+    const int high_depth = bit_depth > 8;
+
+    if (high_depth)
+        return;
+
+    if (chroma_format_idc <= 1) {
+        h->pred8x8[VERT_PRED8x8     ] = ff_pred8x8_vert_neon;
+        h->pred8x8[HOR_PRED8x8      ] = ff_pred8x8_hor_neon;
+        if (codec_id != AV_CODEC_ID_VP7 && codec_id != AV_CODEC_ID_VP8)
+            h->pred8x8[PLANE_PRED8x8] = ff_pred8x8_plane_neon;
+        h->pred8x8[DC_128_PRED8x8   ] = ff_pred8x8_128_dc_neon;
+        if (codec_id != AV_CODEC_ID_RV40 && codec_id != AV_CODEC_ID_VP7 &&
+            codec_id != AV_CODEC_ID_VP8) {
+            h->pred8x8[DC_PRED8x8     ] = ff_pred8x8_dc_neon;
+            h->pred8x8[LEFT_DC_PRED8x8] = ff_pred8x8_left_dc_neon;
+            h->pred8x8[TOP_DC_PRED8x8 ] = ff_pred8x8_top_dc_neon;
+            h->pred8x8[ALZHEIMER_DC_L0T_PRED8x8] = ff_pred8x8_l0t_dc_neon;
+            h->pred8x8[ALZHEIMER_DC_0LT_PRED8x8] = ff_pred8x8_0lt_dc_neon;
+            h->pred8x8[ALZHEIMER_DC_L00_PRED8x8] = ff_pred8x8_l00_dc_neon;
+            h->pred8x8[ALZHEIMER_DC_0L0_PRED8x8] = ff_pred8x8_0l0_dc_neon;
+        }
+    }
+
+    h->pred16x16[DC_PRED8x8     ] = ff_pred16x16_dc_neon;
+    h->pred16x16[VERT_PRED8x8   ] = ff_pred16x16_vert_neon;
+    h->pred16x16[HOR_PRED8x8    ] = ff_pred16x16_hor_neon;
+    h->pred16x16[LEFT_DC_PRED8x8] = ff_pred16x16_left_dc_neon;
+    h->pred16x16[TOP_DC_PRED8x8 ] = ff_pred16x16_top_dc_neon;
+    h->pred16x16[DC_128_PRED8x8 ] = ff_pred16x16_128_dc_neon;
+    if (codec_id != AV_CODEC_ID_SVQ3 && codec_id != AV_CODEC_ID_RV40 &&
+        codec_id != AV_CODEC_ID_VP7 && codec_id != AV_CODEC_ID_VP8)
+        h->pred16x16[PLANE_PRED8x8  ] = ff_pred16x16_plane_neon;
+}
+
+av_cold void ff_h264_pred_init_aarch64(H264PredContext *h, int codec_id,
+                                       int bit_depth, const int chroma_format_idc)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags))
+        h264_pred_init_neon(h, codec_id, bit_depth, chroma_format_idc);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/h264qpel_init_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/h264qpel_init_aarch64.c
new file mode 100644
index 000000000..77f41d9a2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/h264qpel_init_aarch64.c
@@ -0,0 +1,172 @@
+/*
+ * ARM NEON optimised DSP functions
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/h264qpel.h"
+
+void ff_put_h264_qpel16_mc00_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc10_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc20_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc30_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc01_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc11_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc21_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc31_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc02_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc12_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc22_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc32_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc03_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc13_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc23_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc33_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+
+void ff_put_h264_qpel8_mc00_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc10_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc20_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc30_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc01_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc11_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc21_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc31_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc02_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc12_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc22_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc32_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc03_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc13_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc23_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc33_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+
+void ff_avg_h264_qpel16_mc00_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc10_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc20_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc30_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc01_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc11_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc21_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc31_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc02_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc12_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc22_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc32_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc03_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc13_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc23_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc33_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+
+void ff_avg_h264_qpel8_mc00_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc10_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc20_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc30_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc01_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc11_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc21_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc31_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc02_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc12_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc22_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc32_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc03_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc13_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc23_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc33_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+
+av_cold void ff_h264qpel_init_aarch64(H264QpelContext *c, int bit_depth)
+{
+    const int high_bit_depth = bit_depth > 8;
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags) && !high_bit_depth) {
+        c->put_h264_qpel_pixels_tab[0][ 0] = ff_put_h264_qpel16_mc00_neon;
+        c->put_h264_qpel_pixels_tab[0][ 1] = ff_put_h264_qpel16_mc10_neon;
+        c->put_h264_qpel_pixels_tab[0][ 2] = ff_put_h264_qpel16_mc20_neon;
+        c->put_h264_qpel_pixels_tab[0][ 3] = ff_put_h264_qpel16_mc30_neon;
+        c->put_h264_qpel_pixels_tab[0][ 4] = ff_put_h264_qpel16_mc01_neon;
+        c->put_h264_qpel_pixels_tab[0][ 5] = ff_put_h264_qpel16_mc11_neon;
+        c->put_h264_qpel_pixels_tab[0][ 6] = ff_put_h264_qpel16_mc21_neon;
+        c->put_h264_qpel_pixels_tab[0][ 7] = ff_put_h264_qpel16_mc31_neon;
+        c->put_h264_qpel_pixels_tab[0][ 8] = ff_put_h264_qpel16_mc02_neon;
+        c->put_h264_qpel_pixels_tab[0][ 9] = ff_put_h264_qpel16_mc12_neon;
+        c->put_h264_qpel_pixels_tab[0][10] = ff_put_h264_qpel16_mc22_neon;
+        c->put_h264_qpel_pixels_tab[0][11] = ff_put_h264_qpel16_mc32_neon;
+        c->put_h264_qpel_pixels_tab[0][12] = ff_put_h264_qpel16_mc03_neon;
+        c->put_h264_qpel_pixels_tab[0][13] = ff_put_h264_qpel16_mc13_neon;
+        c->put_h264_qpel_pixels_tab[0][14] = ff_put_h264_qpel16_mc23_neon;
+        c->put_h264_qpel_pixels_tab[0][15] = ff_put_h264_qpel16_mc33_neon;
+
+        c->put_h264_qpel_pixels_tab[1][ 0] = ff_put_h264_qpel8_mc00_neon;
+        c->put_h264_qpel_pixels_tab[1][ 1] = ff_put_h264_qpel8_mc10_neon;
+        c->put_h264_qpel_pixels_tab[1][ 2] = ff_put_h264_qpel8_mc20_neon;
+        c->put_h264_qpel_pixels_tab[1][ 3] = ff_put_h264_qpel8_mc30_neon;
+        c->put_h264_qpel_pixels_tab[1][ 4] = ff_put_h264_qpel8_mc01_neon;
+        c->put_h264_qpel_pixels_tab[1][ 5] = ff_put_h264_qpel8_mc11_neon;
+        c->put_h264_qpel_pixels_tab[1][ 6] = ff_put_h264_qpel8_mc21_neon;
+        c->put_h264_qpel_pixels_tab[1][ 7] = ff_put_h264_qpel8_mc31_neon;
+        c->put_h264_qpel_pixels_tab[1][ 8] = ff_put_h264_qpel8_mc02_neon;
+        c->put_h264_qpel_pixels_tab[1][ 9] = ff_put_h264_qpel8_mc12_neon;
+        c->put_h264_qpel_pixels_tab[1][10] = ff_put_h264_qpel8_mc22_neon;
+        c->put_h264_qpel_pixels_tab[1][11] = ff_put_h264_qpel8_mc32_neon;
+        c->put_h264_qpel_pixels_tab[1][12] = ff_put_h264_qpel8_mc03_neon;
+        c->put_h264_qpel_pixels_tab[1][13] = ff_put_h264_qpel8_mc13_neon;
+        c->put_h264_qpel_pixels_tab[1][14] = ff_put_h264_qpel8_mc23_neon;
+        c->put_h264_qpel_pixels_tab[1][15] = ff_put_h264_qpel8_mc33_neon;
+
+        c->avg_h264_qpel_pixels_tab[0][ 0] = ff_avg_h264_qpel16_mc00_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 1] = ff_avg_h264_qpel16_mc10_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 2] = ff_avg_h264_qpel16_mc20_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 3] = ff_avg_h264_qpel16_mc30_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 4] = ff_avg_h264_qpel16_mc01_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 5] = ff_avg_h264_qpel16_mc11_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 6] = ff_avg_h264_qpel16_mc21_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 7] = ff_avg_h264_qpel16_mc31_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 8] = ff_avg_h264_qpel16_mc02_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 9] = ff_avg_h264_qpel16_mc12_neon;
+        c->avg_h264_qpel_pixels_tab[0][10] = ff_avg_h264_qpel16_mc22_neon;
+        c->avg_h264_qpel_pixels_tab[0][11] = ff_avg_h264_qpel16_mc32_neon;
+        c->avg_h264_qpel_pixels_tab[0][12] = ff_avg_h264_qpel16_mc03_neon;
+        c->avg_h264_qpel_pixels_tab[0][13] = ff_avg_h264_qpel16_mc13_neon;
+        c->avg_h264_qpel_pixels_tab[0][14] = ff_avg_h264_qpel16_mc23_neon;
+        c->avg_h264_qpel_pixels_tab[0][15] = ff_avg_h264_qpel16_mc33_neon;
+
+        c->avg_h264_qpel_pixels_tab[1][ 0] = ff_avg_h264_qpel8_mc00_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 1] = ff_avg_h264_qpel8_mc10_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 2] = ff_avg_h264_qpel8_mc20_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 3] = ff_avg_h264_qpel8_mc30_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 4] = ff_avg_h264_qpel8_mc01_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 5] = ff_avg_h264_qpel8_mc11_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 6] = ff_avg_h264_qpel8_mc21_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 7] = ff_avg_h264_qpel8_mc31_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 8] = ff_avg_h264_qpel8_mc02_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 9] = ff_avg_h264_qpel8_mc12_neon;
+        c->avg_h264_qpel_pixels_tab[1][10] = ff_avg_h264_qpel8_mc22_neon;
+        c->avg_h264_qpel_pixels_tab[1][11] = ff_avg_h264_qpel8_mc32_neon;
+        c->avg_h264_qpel_pixels_tab[1][12] = ff_avg_h264_qpel8_mc03_neon;
+        c->avg_h264_qpel_pixels_tab[1][13] = ff_avg_h264_qpel8_mc13_neon;
+        c->avg_h264_qpel_pixels_tab[1][14] = ff_avg_h264_qpel8_mc23_neon;
+        c->avg_h264_qpel_pixels_tab[1][15] = ff_avg_h264_qpel8_mc33_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/hpeldsp_init_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/hpeldsp_init_aarch64.c
new file mode 100644
index 000000000..144ae2bcc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/hpeldsp_init_aarch64.c
@@ -0,0 +1,123 @@
+/*
+ * ARM NEON optimised DSP functions
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "config.h"
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/hpeldsp.h"
+
+void     ff_put_pixels16_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void  ff_put_pixels16_x2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void  ff_put_pixels16_y2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_put_pixels16_xy2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void      ff_put_pixels8_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void   ff_put_pixels8_x2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void   ff_put_pixels8_y2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void  ff_put_pixels8_xy2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+
+void  ff_put_pixels16_x2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void  ff_put_pixels16_y2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void ff_put_pixels16_xy2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void   ff_put_pixels8_x2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void   ff_put_pixels8_y2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void  ff_put_pixels8_xy2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+
+void     ff_avg_pixels16_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void  ff_avg_pixels16_x2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void  ff_avg_pixels16_y2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_avg_pixels16_xy2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void      ff_avg_pixels8_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void   ff_avg_pixels8_x2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void   ff_avg_pixels8_y2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void  ff_avg_pixels8_xy2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+
+void  ff_avg_pixels16_x2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void  ff_avg_pixels16_y2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void ff_avg_pixels16_xy2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+
+av_cold void ff_hpeldsp_init_aarch64(HpelDSPContext *c, int flags)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        c->put_pixels_tab[0][0] = ff_put_pixels16_neon;
+        c->put_pixels_tab[0][1] = ff_put_pixels16_x2_neon;
+        c->put_pixels_tab[0][2] = ff_put_pixels16_y2_neon;
+        c->put_pixels_tab[0][3] = ff_put_pixels16_xy2_neon;
+        c->put_pixels_tab[1][0] = ff_put_pixels8_neon;
+        c->put_pixels_tab[1][1] = ff_put_pixels8_x2_neon;
+        c->put_pixels_tab[1][2] = ff_put_pixels8_y2_neon;
+        c->put_pixels_tab[1][3] = ff_put_pixels8_xy2_neon;
+
+        c->put_no_rnd_pixels_tab[0][0] = ff_put_pixels16_neon;
+        c->put_no_rnd_pixels_tab[0][1] = ff_put_pixels16_x2_no_rnd_neon;
+        c->put_no_rnd_pixels_tab[0][2] = ff_put_pixels16_y2_no_rnd_neon;
+        c->put_no_rnd_pixels_tab[0][3] = ff_put_pixels16_xy2_no_rnd_neon;
+        c->put_no_rnd_pixels_tab[1][0] = ff_put_pixels8_neon;
+        c->put_no_rnd_pixels_tab[1][1] = ff_put_pixels8_x2_no_rnd_neon;
+        c->put_no_rnd_pixels_tab[1][2] = ff_put_pixels8_y2_no_rnd_neon;
+        c->put_no_rnd_pixels_tab[1][3] = ff_put_pixels8_xy2_no_rnd_neon;
+
+        c->avg_pixels_tab[0][0] = ff_avg_pixels16_neon;
+        c->avg_pixels_tab[0][1] = ff_avg_pixels16_x2_neon;
+        c->avg_pixels_tab[0][2] = ff_avg_pixels16_y2_neon;
+        c->avg_pixels_tab[0][3] = ff_avg_pixels16_xy2_neon;
+        c->avg_pixels_tab[1][0] = ff_avg_pixels8_neon;
+        c->avg_pixels_tab[1][1] = ff_avg_pixels8_x2_neon;
+        c->avg_pixels_tab[1][2] = ff_avg_pixels8_y2_neon;
+        c->avg_pixels_tab[1][3] = ff_avg_pixels8_xy2_neon;
+
+        c->avg_no_rnd_pixels_tab[0] = ff_avg_pixels16_neon;
+        c->avg_no_rnd_pixels_tab[1] = ff_avg_pixels16_x2_no_rnd_neon;
+        c->avg_no_rnd_pixels_tab[2] = ff_avg_pixels16_y2_no_rnd_neon;
+        c->avg_no_rnd_pixels_tab[3] = ff_avg_pixels16_xy2_no_rnd_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/idct.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/idct.h
new file mode 100644
index 000000000..5c4904614
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/idct.h
@@ -0,0 +1,28 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AARCH64_IDCT_H
+#define AVCODEC_AARCH64_IDCT_H
+
+#include <stdint.h>
+
+void ff_simple_idct_neon(int16_t *data);
+void ff_simple_idct_put_neon(uint8_t *dest, ptrdiff_t line_size, int16_t *data);
+void ff_simple_idct_add_neon(uint8_t *dest, ptrdiff_t line_size, int16_t *data);
+
+#endif /* AVCODEC_AARCH64_IDCT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/idctdsp_init_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/idctdsp_init_aarch64.c
new file mode 100644
index 000000000..0406e6083
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/idctdsp_init_aarch64.c
@@ -0,0 +1,41 @@
+/*
+ * ARM-NEON-optimized IDCT functions
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ * Copyright (c) 2017 Matthieu Bouron <matthieu.bouron@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/idctdsp.h"
+#include "idct.h"
+
+av_cold void ff_idctdsp_init_aarch64(IDCTDSPContext *c, AVCodecContext *avctx,
+                                     unsigned high_bit_depth)
+{
+    if (!avctx->lowres && !high_bit_depth) {
+        if (avctx->idct_algo == FF_IDCT_AUTO ||
+            avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
+            avctx->idct_algo == FF_IDCT_SIMPLENEON) {
+            c->idct_put  = ff_simple_idct_put_neon;
+            c->idct_add  = ff_simple_idct_add_neon;
+            c->idct      = ff_simple_idct_neon;
+            c->perm_type = FF_IDCT_PERM_PARTTRANS;
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/mpegaudiodsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/mpegaudiodsp_init.c
new file mode 100644
index 000000000..5d966af5f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/mpegaudiodsp_init.c
@@ -0,0 +1,40 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/mpegaudiodsp.h"
+#include "config.h"
+
+void ff_mpadsp_apply_window_fixed_neon(int32_t *synth_buf, int32_t *window,
+                                       int *dither, int16_t *samples, ptrdiff_t incr);
+void ff_mpadsp_apply_window_float_neon(float *synth_buf, float *window,
+                                       int *dither, float *samples, ptrdiff_t incr);
+
+av_cold void ff_mpadsp_init_aarch64(MPADSPContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        s->apply_window_fixed = ff_mpadsp_apply_window_fixed_neon;
+        s->apply_window_float = ff_mpadsp_apply_window_float_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/opusdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/opusdsp_init.c
new file mode 100644
index 000000000..cc6a1b672
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/opusdsp_init.c
@@ -0,0 +1,35 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/opusdsp.h"
+
+void ff_opus_postfilter_neon(float *data, int period, float *gains, int len);
+float ff_opus_deemphasis_neon(float *out, float *in, float coeff, int len);
+
+av_cold void ff_opus_dsp_init_aarch64(OpusDSP *ctx)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        ctx->postfilter = ff_opus_postfilter_neon;
+        ctx->deemphasis = ff_opus_deemphasis_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/rv40dsp_init_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/rv40dsp_init_aarch64.c
new file mode 100644
index 000000000..142705db9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/rv40dsp_init_aarch64.c
@@ -0,0 +1,48 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/rv34dsp.h"
+
+#include "config.h"
+
+void ff_put_rv40_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                 int h, int x, int y);
+void ff_put_rv40_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                 int h, int x, int y);
+
+void ff_avg_rv40_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                 int h, int x, int y);
+void ff_avg_rv40_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                 int h, int x, int y);
+
+av_cold void ff_rv40dsp_init_aarch64(RV34DSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        c->put_chroma_pixels_tab[0] = ff_put_rv40_chroma_mc8_neon;
+        c->put_chroma_pixels_tab[1] = ff_put_rv40_chroma_mc4_neon;
+        c->avg_chroma_pixels_tab[0] = ff_avg_rv40_chroma_mc8_neon;
+        c->avg_chroma_pixels_tab[1] = ff_avg_rv40_chroma_mc4_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/sbrdsp_init_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/sbrdsp_init_aarch64.c
new file mode 100644
index 000000000..9c967990d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/sbrdsp_init_aarch64.c
@@ -0,0 +1,70 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavutil/attributes.h"
+#include "libavcodec/sbrdsp.h"
+
+void ff_sbr_sum64x5_neon(float *z);
+float ff_sbr_sum_square_neon(float (*x)[2], int n);
+void ff_sbr_neg_odd_64_neon(float *x);
+void ff_sbr_qmf_pre_shuffle_neon(float *z);
+void ff_sbr_qmf_post_shuffle_neon(float W[32][2], const float *z);
+void ff_sbr_qmf_deint_neg_neon(float *v, const float *src);
+void ff_sbr_qmf_deint_bfly_neon(float *v, const float *src0, const float *src1);
+void ff_sbr_hf_g_filt_neon(float (*Y)[2], const float (*X_high)[40][2],
+                           const float *g_filt, int m_max, intptr_t ixh);
+void ff_sbr_hf_gen_neon(float (*X_high)[2], const float (*X_low)[2],
+                        const float alpha0[2], const float alpha1[2],
+                        float bw, int start, int end);
+void ff_sbr_autocorrelate_neon(const float x[40][2], float phi[3][2][2]);
+void ff_sbr_hf_apply_noise_0_neon(float Y[64][2], const float *s_m,
+                                  const float *q_filt, int noise,
+                                  int kx, int m_max);
+void ff_sbr_hf_apply_noise_1_neon(float Y[64][2], const float *s_m,
+                                  const float *q_filt, int noise,
+                                  int kx, int m_max);
+void ff_sbr_hf_apply_noise_2_neon(float Y[64][2], const float *s_m,
+                                  const float *q_filt, int noise,
+                                  int kx, int m_max);
+void ff_sbr_hf_apply_noise_3_neon(float Y[64][2], const float *s_m,
+                                  const float *q_filt, int noise,
+                                  int kx, int m_max);
+
+av_cold void ff_sbrdsp_init_aarch64(SBRDSPContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        s->sum64x5 = ff_sbr_sum64x5_neon;
+        s->sum_square = ff_sbr_sum_square_neon;
+        s->neg_odd_64 = ff_sbr_neg_odd_64_neon;
+        s->qmf_pre_shuffle = ff_sbr_qmf_pre_shuffle_neon;
+        s->qmf_post_shuffle = ff_sbr_qmf_post_shuffle_neon;
+        s->qmf_deint_neg = ff_sbr_qmf_deint_neg_neon;
+        s->qmf_deint_bfly = ff_sbr_qmf_deint_bfly_neon;
+        s->hf_g_filt = ff_sbr_hf_g_filt_neon;
+        s->hf_gen = ff_sbr_hf_gen_neon;
+        s->autocorrelate = ff_sbr_autocorrelate_neon;
+        s->hf_apply_noise[0] = ff_sbr_hf_apply_noise_0_neon;
+        s->hf_apply_noise[1] = ff_sbr_hf_apply_noise_1_neon;
+        s->hf_apply_noise[2] = ff_sbr_hf_apply_noise_2_neon;
+        s->hf_apply_noise[3] = ff_sbr_hf_apply_noise_3_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/synth_filter_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/synth_filter_init.c
new file mode 100644
index 000000000..767b01112
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/synth_filter_init.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/aarch64/cpu.h"
+#include "libavutil/attributes.h"
+#include "libavutil/internal.h"
+#include "libavcodec/fft.h"
+#include "libavcodec/synth_filter.h"
+
+#include "asm-offsets.h"
+
+#if HAVE_NEON || HAVE_VFP
+AV_CHECK_OFFSET(FFTContext, imdct_half, IMDCT_HALF);
+#endif
+
+void ff_synth_filter_float_neon(FFTContext *imdct,
+                                float *synth_buf_ptr, int *synth_buf_offset,
+                                float synth_buf2[32], const float window[512],
+                                float out[32], const float in[32],
+                                float scale);
+
+av_cold void ff_synth_filter_init_aarch64(SynthFilterContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags))
+        s->synth_filter_float = ff_synth_filter_float_neon;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vc1dsp_init_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vc1dsp_init_aarch64.c
new file mode 100644
index 000000000..13dfd7494
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vc1dsp_init_aarch64.c
@@ -0,0 +1,47 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/vc1dsp.h"
+
+#include "config.h"
+
+void ff_put_vc1_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                int h, int x, int y);
+void ff_avg_vc1_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                int h, int x, int y);
+void ff_put_vc1_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                int h, int x, int y);
+void ff_avg_vc1_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                                int h, int x, int y);
+
+av_cold void ff_vc1dsp_init_aarch64(VC1DSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        dsp->put_no_rnd_vc1_chroma_pixels_tab[0] = ff_put_vc1_chroma_mc8_neon;
+        dsp->avg_no_rnd_vc1_chroma_pixels_tab[0] = ff_avg_vc1_chroma_mc8_neon;
+        dsp->put_no_rnd_vc1_chroma_pixels_tab[1] = ff_put_vc1_chroma_mc4_neon;
+        dsp->avg_no_rnd_vc1_chroma_pixels_tab[1] = ff_avg_vc1_chroma_mc4_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/videodsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/videodsp_init.c
new file mode 100644
index 000000000..6f667a6d3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/videodsp_init.c
@@ -0,0 +1,32 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/videodsp.h"
+
+void ff_prefetch_aarch64(uint8_t *mem, ptrdiff_t stride, int h);
+
+av_cold void ff_videodsp_init_aarch64(VideoDSPContext *ctx, int bpc)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_armv8(cpu_flags))
+        ctx->prefetch = ff_prefetch_aarch64;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vorbisdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vorbisdsp_init.c
new file mode 100644
index 000000000..c796f95e6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vorbisdsp_init.c
@@ -0,0 +1,34 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/vorbisdsp.h"
+
+void ff_vorbis_inverse_coupling_neon(float *mag, float *ang,
+                                     intptr_t blocksize);
+
+av_cold void ff_vorbisdsp_init_aarch64(VorbisDSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        c->vorbis_inverse_coupling = ff_vorbis_inverse_coupling_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp8dsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp8dsp.h
new file mode 100644
index 000000000..871fed7a9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp8dsp.h
@@ -0,0 +1,75 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AARCH64_VP8DSP_H
+#define AVCODEC_AARCH64_VP8DSP_H
+
+#include "libavcodec/vp8dsp.h"
+
+#define VP8_LF_Y(hv, inner, opt)                                             \
+    void ff_vp8_##hv##_loop_filter16##inner##_##opt(uint8_t *dst,            \
+                                                    ptrdiff_t stride,        \
+                                                    int flim_E, int flim_I,  \
+                                                    int hev_thresh)
+
+#define VP8_LF_UV(hv, inner, opt)                                            \
+    void ff_vp8_##hv##_loop_filter8uv##inner##_##opt(uint8_t *dstU,          \
+                                                     uint8_t *dstV,          \
+                                                     ptrdiff_t stride,       \
+                                                     int flim_E, int flim_I, \
+                                                     int hev_thresh)
+
+#define VP8_LF_SIMPLE(hv, opt)                                          \
+    void ff_vp8_##hv##_loop_filter16_simple_##opt(uint8_t *dst,         \
+                                                  ptrdiff_t stride,     \
+                                                  int flim)
+
+#define VP8_LF_HV(inner, opt)                   \
+    VP8_LF_Y(h,  inner, opt);                   \
+    VP8_LF_Y(v,  inner, opt);                   \
+    VP8_LF_UV(h, inner, opt);                   \
+    VP8_LF_UV(v, inner, opt)
+
+#define VP8_LF(opt)                             \
+    VP8_LF_HV(,       opt);                     \
+    VP8_LF_HV(_inner, opt);                     \
+    VP8_LF_SIMPLE(h, opt);                      \
+    VP8_LF_SIMPLE(v, opt)
+
+#define VP8_MC(n, opt)                                                  \
+    void ff_put_vp8_##n##_##opt(uint8_t *dst, ptrdiff_t dststride,      \
+                                uint8_t *src, ptrdiff_t srcstride,      \
+                                int h, int x, int y)
+
+#define VP8_EPEL(w, opt)                        \
+    VP8_MC(pixels ## w, opt);                   \
+    VP8_MC(epel ## w ## _h4, opt);              \
+    VP8_MC(epel ## w ## _h6, opt);              \
+    VP8_MC(epel ## w ## _v4, opt);              \
+    VP8_MC(epel ## w ## _h4v4, opt);            \
+    VP8_MC(epel ## w ## _h6v4, opt);            \
+    VP8_MC(epel ## w ## _v6, opt);              \
+    VP8_MC(epel ## w ## _h4v6, opt);            \
+    VP8_MC(epel ## w ## _h6v6, opt)
+
+#define VP8_BILIN(w, opt)                       \
+    VP8_MC(bilin ## w ## _h, opt);              \
+    VP8_MC(bilin ## w ## _v, opt);              \
+    VP8_MC(bilin ## w ## _hv, opt)
+
+#endif /* AVCODEC_AARCH64_VP8DSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp8dsp_init_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp8dsp_init_aarch64.c
new file mode 100644
index 000000000..fc7e831d1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp8dsp_init_aarch64.c
@@ -0,0 +1,124 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/vp8dsp.h"
+#include "vp8dsp.h"
+
+void ff_vp8_luma_dc_wht_neon(int16_t block[4][4][16], int16_t dc[16]);
+
+void ff_vp8_idct_add_neon(uint8_t *dst, int16_t block[16], ptrdiff_t stride);
+void ff_vp8_idct_dc_add_neon(uint8_t *dst, int16_t block[16], ptrdiff_t stride);
+void ff_vp8_idct_dc_add4y_neon(uint8_t *dst, int16_t block[4][16], ptrdiff_t stride);
+void ff_vp8_idct_dc_add4uv_neon(uint8_t *dst, int16_t block[4][16], ptrdiff_t stride);
+
+VP8_LF(neon);
+
+VP8_EPEL(16, neon);
+VP8_EPEL(8,  neon);
+VP8_EPEL(4,  neon);
+
+VP8_BILIN(16, neon);
+VP8_BILIN(8,  neon);
+VP8_BILIN(4,  neon);
+
+av_cold void ff_vp78dsp_init_aarch64(VP8DSPContext *dsp)
+{
+    if (!have_neon(av_get_cpu_flags()))
+        return;
+    dsp->put_vp8_epel_pixels_tab[0][0][0] = ff_put_vp8_pixels16_neon;
+    dsp->put_vp8_epel_pixels_tab[0][0][2] = ff_put_vp8_epel16_h6_neon;
+    dsp->put_vp8_epel_pixels_tab[0][2][0] = ff_put_vp8_epel16_v6_neon;
+    dsp->put_vp8_epel_pixels_tab[0][2][2] = ff_put_vp8_epel16_h6v6_neon;
+
+    dsp->put_vp8_epel_pixels_tab[1][0][0] = ff_put_vp8_pixels8_neon;
+    dsp->put_vp8_epel_pixels_tab[1][0][1] = ff_put_vp8_epel8_h4_neon;
+    dsp->put_vp8_epel_pixels_tab[1][0][2] = ff_put_vp8_epel8_h6_neon;
+    dsp->put_vp8_epel_pixels_tab[1][1][0] = ff_put_vp8_epel8_v4_neon;
+    dsp->put_vp8_epel_pixels_tab[1][1][1] = ff_put_vp8_epel8_h4v4_neon;
+    dsp->put_vp8_epel_pixels_tab[1][1][2] = ff_put_vp8_epel8_h6v4_neon;
+    dsp->put_vp8_epel_pixels_tab[1][2][0] = ff_put_vp8_epel8_v6_neon;
+    dsp->put_vp8_epel_pixels_tab[1][2][1] = ff_put_vp8_epel8_h4v6_neon;
+    dsp->put_vp8_epel_pixels_tab[1][2][2] = ff_put_vp8_epel8_h6v6_neon;
+
+    dsp->put_vp8_epel_pixels_tab[2][0][1] = ff_put_vp8_epel4_h4_neon;
+    dsp->put_vp8_epel_pixels_tab[2][0][2] = ff_put_vp8_epel4_h6_neon;
+    dsp->put_vp8_epel_pixels_tab[2][1][0] = ff_put_vp8_epel4_v4_neon;
+    dsp->put_vp8_epel_pixels_tab[2][1][1] = ff_put_vp8_epel4_h4v4_neon;
+    dsp->put_vp8_epel_pixels_tab[2][1][2] = ff_put_vp8_epel4_h6v4_neon;
+    dsp->put_vp8_epel_pixels_tab[2][2][0] = ff_put_vp8_epel4_v6_neon;
+    dsp->put_vp8_epel_pixels_tab[2][2][1] = ff_put_vp8_epel4_h4v6_neon;
+    dsp->put_vp8_epel_pixels_tab[2][2][2] = ff_put_vp8_epel4_h6v6_neon;
+
+    dsp->put_vp8_bilinear_pixels_tab[0][0][0] = ff_put_vp8_pixels16_neon;
+    dsp->put_vp8_bilinear_pixels_tab[0][0][1] = ff_put_vp8_bilin16_h_neon;
+    dsp->put_vp8_bilinear_pixels_tab[0][0][2] = ff_put_vp8_bilin16_h_neon;
+    dsp->put_vp8_bilinear_pixels_tab[0][1][0] = ff_put_vp8_bilin16_v_neon;
+    dsp->put_vp8_bilinear_pixels_tab[0][1][1] = ff_put_vp8_bilin16_hv_neon;
+    dsp->put_vp8_bilinear_pixels_tab[0][1][2] = ff_put_vp8_bilin16_hv_neon;
+    dsp->put_vp8_bilinear_pixels_tab[0][2][0] = ff_put_vp8_bilin16_v_neon;
+    dsp->put_vp8_bilinear_pixels_tab[0][2][1] = ff_put_vp8_bilin16_hv_neon;
+    dsp->put_vp8_bilinear_pixels_tab[0][2][2] = ff_put_vp8_bilin16_hv_neon;
+
+    dsp->put_vp8_bilinear_pixels_tab[1][0][0] = ff_put_vp8_pixels8_neon;
+    dsp->put_vp8_bilinear_pixels_tab[1][0][1] = ff_put_vp8_bilin8_h_neon;
+    dsp->put_vp8_bilinear_pixels_tab[1][0][2] = ff_put_vp8_bilin8_h_neon;
+    dsp->put_vp8_bilinear_pixels_tab[1][1][0] = ff_put_vp8_bilin8_v_neon;
+    dsp->put_vp8_bilinear_pixels_tab[1][1][1] = ff_put_vp8_bilin8_hv_neon;
+    dsp->put_vp8_bilinear_pixels_tab[1][1][2] = ff_put_vp8_bilin8_hv_neon;
+    dsp->put_vp8_bilinear_pixels_tab[1][2][0] = ff_put_vp8_bilin8_v_neon;
+    dsp->put_vp8_bilinear_pixels_tab[1][2][1] = ff_put_vp8_bilin8_hv_neon;
+    dsp->put_vp8_bilinear_pixels_tab[1][2][2] = ff_put_vp8_bilin8_hv_neon;
+
+    dsp->put_vp8_bilinear_pixels_tab[2][0][1] = ff_put_vp8_bilin4_h_neon;
+    dsp->put_vp8_bilinear_pixels_tab[2][0][2] = ff_put_vp8_bilin4_h_neon;
+    dsp->put_vp8_bilinear_pixels_tab[2][1][0] = ff_put_vp8_bilin4_v_neon;
+    dsp->put_vp8_bilinear_pixels_tab[2][1][1] = ff_put_vp8_bilin4_hv_neon;
+    dsp->put_vp8_bilinear_pixels_tab[2][1][2] = ff_put_vp8_bilin4_hv_neon;
+    dsp->put_vp8_bilinear_pixels_tab[2][2][0] = ff_put_vp8_bilin4_v_neon;
+    dsp->put_vp8_bilinear_pixels_tab[2][2][1] = ff_put_vp8_bilin4_hv_neon;
+    dsp->put_vp8_bilinear_pixels_tab[2][2][2] = ff_put_vp8_bilin4_hv_neon;
+}
+
+av_cold void ff_vp8dsp_init_aarch64(VP8DSPContext *dsp)
+{
+    if (!have_neon(av_get_cpu_flags()))
+        return;
+    dsp->vp8_luma_dc_wht    = ff_vp8_luma_dc_wht_neon;
+
+    dsp->vp8_idct_add       = ff_vp8_idct_add_neon;
+    dsp->vp8_idct_dc_add    = ff_vp8_idct_dc_add_neon;
+    dsp->vp8_idct_dc_add4y  = ff_vp8_idct_dc_add4y_neon;
+    dsp->vp8_idct_dc_add4uv = ff_vp8_idct_dc_add4uv_neon;
+
+    dsp->vp8_v_loop_filter16y = ff_vp8_v_loop_filter16_neon;
+    dsp->vp8_h_loop_filter16y = ff_vp8_h_loop_filter16_neon;
+    dsp->vp8_v_loop_filter8uv = ff_vp8_v_loop_filter8uv_neon;
+    dsp->vp8_h_loop_filter8uv = ff_vp8_h_loop_filter8uv_neon;
+
+    dsp->vp8_v_loop_filter16y_inner = ff_vp8_v_loop_filter16_inner_neon;
+    dsp->vp8_h_loop_filter16y_inner = ff_vp8_h_loop_filter16_inner_neon;
+    dsp->vp8_v_loop_filter8uv_inner = ff_vp8_v_loop_filter8uv_inner_neon;
+    dsp->vp8_h_loop_filter8uv_inner = ff_vp8_h_loop_filter8uv_inner_neon;
+
+    dsp->vp8_v_loop_filter_simple = ff_vp8_v_loop_filter16_simple_neon;
+    dsp->vp8_h_loop_filter_simple = ff_vp8_h_loop_filter16_simple_neon;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init.h
new file mode 100644
index 000000000..9df1752c6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2017 Google Inc.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AARCH64_VP9DSP_INIT_H
+#define AVCODEC_AARCH64_VP9DSP_INIT_H
+
+#include "libavcodec/vp9dsp.h"
+
+void ff_vp9dsp_init_10bpp_aarch64(VP9DSPContext *dsp);
+void ff_vp9dsp_init_12bpp_aarch64(VP9DSPContext *dsp);
+
+#endif /* AVCODEC_AARCH64_VP9DSP_INIT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init_10bpp_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init_10bpp_aarch64.c
new file mode 100644
index 000000000..0fa0d7f8c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init_10bpp_aarch64.c
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2017 Google Inc.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define BPP 10
+#define INIT_FUNC ff_vp9dsp_init_10bpp_aarch64
+#include "vp9dsp_init_16bpp_aarch64_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init_12bpp_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init_12bpp_aarch64.c
new file mode 100644
index 000000000..dae223240
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init_12bpp_aarch64.c
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2017 Google Inc.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define BPP 12
+#define INIT_FUNC ff_vp9dsp_init_12bpp_aarch64
+#include "vp9dsp_init_16bpp_aarch64_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init_16bpp_aarch64_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init_16bpp_aarch64_template.c
new file mode 100644
index 000000000..8dcfdeaaf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init_16bpp_aarch64_template.c
@@ -0,0 +1,273 @@
+/*
+ * Copyright (c) 2017 Google Inc.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/internal.h"
+#include "libavutil/aarch64/cpu.h"
+#include "vp9dsp_init.h"
+
+#define declare_fpel(type, sz, suffix)                                          \
+void ff_vp9_##type##sz##suffix##_neon(uint8_t *dst, ptrdiff_t dst_stride,       \
+                                      const uint8_t *src, ptrdiff_t src_stride, \
+                                      int h, int mx, int my)
+
+#define decl_mc_func(op, filter, dir, sz, bpp)                                                   \
+void ff_vp9_##op##_##filter##sz##_##dir##_##bpp##_neon(uint8_t *dst, ptrdiff_t dst_stride,       \
+                                                       const uint8_t *src, ptrdiff_t src_stride, \
+                                                       int h, int mx, int my)
+
+#define define_8tap_2d_fn(op, filter, sz, bpp)                                      \
+static void op##_##filter##sz##_hv_##bpp##_neon(uint8_t *dst, ptrdiff_t dst_stride, \
+                                                const uint8_t *src,                 \
+                                                ptrdiff_t src_stride,               \
+                                                int h, int mx, int my)              \
+{                                                                                   \
+    LOCAL_ALIGNED_16(uint8_t, temp, [((1 + (sz < 64)) * sz + 8) * sz * 2]);         \
+    /* We only need h + 7 lines, but the horizontal filter assumes an               \
+     * even number of rows, so filter h + 8 lines here. */                          \
+    ff_vp9_put_##filter##sz##_h_##bpp##_neon(temp, 2 * sz,                          \
+                                             src - 3 * src_stride, src_stride,      \
+                                             h + 8, mx, 0);                         \
+    ff_vp9_##op##_##filter##sz##_v_##bpp##_neon(dst, dst_stride,                    \
+                                                temp + 3 * 2 * sz, 2 * sz,          \
+                                                h, 0, my);                          \
+}
+
+#define decl_filter_funcs(op, dir, sz, bpp)  \
+    decl_mc_func(op, regular, dir, sz, bpp); \
+    decl_mc_func(op, sharp,   dir, sz, bpp); \
+    decl_mc_func(op, smooth,  dir, sz, bpp)
+
+#define decl_mc_funcs(sz, bpp)           \
+    decl_filter_funcs(put, h,  sz, bpp); \
+    decl_filter_funcs(avg, h,  sz, bpp); \
+    decl_filter_funcs(put, v,  sz, bpp); \
+    decl_filter_funcs(avg, v,  sz, bpp); \
+    decl_filter_funcs(put, hv, sz, bpp); \
+    decl_filter_funcs(avg, hv, sz, bpp)
+
+#define ff_vp9_copy32_neon  ff_vp9_copy32_aarch64
+#define ff_vp9_copy64_neon  ff_vp9_copy64_aarch64
+#define ff_vp9_copy128_neon ff_vp9_copy128_aarch64
+
+declare_fpel(copy, 128, );
+declare_fpel(copy, 64,  );
+declare_fpel(copy, 32,  );
+declare_fpel(copy, 16,  );
+declare_fpel(copy, 8,   );
+declare_fpel(avg, 64, _16);
+declare_fpel(avg, 32, _16);
+declare_fpel(avg, 16, _16);
+declare_fpel(avg, 8,  _16);
+declare_fpel(avg, 4,  _16);
+
+decl_mc_funcs(64, BPP);
+decl_mc_funcs(32, BPP);
+decl_mc_funcs(16, BPP);
+decl_mc_funcs(8, BPP);
+decl_mc_funcs(4, BPP);
+
+#define define_8tap_2d_funcs(sz, bpp)        \
+    define_8tap_2d_fn(put, regular, sz, bpp) \
+    define_8tap_2d_fn(put, sharp,   sz, bpp) \
+    define_8tap_2d_fn(put, smooth,  sz, bpp) \
+    define_8tap_2d_fn(avg, regular, sz, bpp) \
+    define_8tap_2d_fn(avg, sharp,   sz, bpp) \
+    define_8tap_2d_fn(avg, smooth,  sz, bpp)
+
+define_8tap_2d_funcs(64, BPP)
+define_8tap_2d_funcs(32, BPP)
+define_8tap_2d_funcs(16, BPP)
+define_8tap_2d_funcs(8,  BPP)
+define_8tap_2d_funcs(4,  BPP)
+
+static av_cold void vp9dsp_mc_init_aarch64(VP9DSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+#define init_fpel(idx1, idx2, sz, type, suffix)      \
+    dsp->mc[idx1][FILTER_8TAP_SMOOTH ][idx2][0][0] = \
+    dsp->mc[idx1][FILTER_8TAP_REGULAR][idx2][0][0] = \
+    dsp->mc[idx1][FILTER_8TAP_SHARP  ][idx2][0][0] = \
+    dsp->mc[idx1][FILTER_BILINEAR    ][idx2][0][0] = ff_vp9_##type##sz##suffix
+
+#define init_copy(idx, sz, suffix) \
+    init_fpel(idx, 0, sz, copy, suffix)
+
+#define init_avg(idx, sz, suffix) \
+    init_fpel(idx, 1, sz, avg,  suffix)
+
+#define init_copy_avg(idx, sz1, sz2) \
+    init_copy(idx, sz2, _neon);      \
+    init_avg (idx, sz1, _16_neon)
+
+    if (have_armv8(cpu_flags)) {
+        init_copy(0, 128, _aarch64);
+        init_copy(1, 64,  _aarch64);
+        init_copy(2, 32,  _aarch64);
+    }
+
+    if (have_neon(cpu_flags)) {
+#define init_mc_func(idx1, idx2, op, filter, fname, dir, mx, my, sz, pfx, bpp) \
+    dsp->mc[idx1][filter][idx2][mx][my] = pfx##op##_##fname##sz##_##dir##_##bpp##_neon
+
+#define init_mc_funcs(idx, dir, mx, my, sz, pfx, bpp)                                   \
+    init_mc_func(idx, 0, put, FILTER_8TAP_REGULAR, regular, dir, mx, my, sz, pfx, bpp); \
+    init_mc_func(idx, 0, put, FILTER_8TAP_SHARP,   sharp,   dir, mx, my, sz, pfx, bpp); \
+    init_mc_func(idx, 0, put, FILTER_8TAP_SMOOTH,  smooth,  dir, mx, my, sz, pfx, bpp); \
+    init_mc_func(idx, 1, avg, FILTER_8TAP_REGULAR, regular, dir, mx, my, sz, pfx, bpp); \
+    init_mc_func(idx, 1, avg, FILTER_8TAP_SHARP,   sharp,   dir, mx, my, sz, pfx, bpp); \
+    init_mc_func(idx, 1, avg, FILTER_8TAP_SMOOTH,  smooth,  dir, mx, my, sz, pfx, bpp)
+
+#define init_mc_funcs_dirs(idx, sz, bpp)            \
+    init_mc_funcs(idx, v,  0, 1, sz, ff_vp9_, bpp); \
+    init_mc_funcs(idx, h,  1, 0, sz, ff_vp9_, bpp); \
+    init_mc_funcs(idx, hv, 1, 1, sz,        , bpp)
+
+
+        init_avg(0, 64, _16_neon);
+        init_avg(1, 32, _16_neon);
+        init_avg(2, 16, _16_neon);
+        init_copy_avg(3, 8, 16);
+        init_copy_avg(4, 4, 8);
+
+        init_mc_funcs_dirs(0, 64, BPP);
+        init_mc_funcs_dirs(1, 32, BPP);
+        init_mc_funcs_dirs(2, 16, BPP);
+        init_mc_funcs_dirs(3, 8,  BPP);
+        init_mc_funcs_dirs(4, 4,  BPP);
+    }
+}
+
+#define define_itxfm2(type_a, type_b, sz, bpp)                                     \
+void ff_vp9_##type_a##_##type_b##_##sz##x##sz##_add_##bpp##_neon(uint8_t *_dst,    \
+                                                                 ptrdiff_t stride, \
+                                                                 int16_t *_block, int eob)
+#define define_itxfm(type_a, type_b, sz, bpp) define_itxfm2(type_a, type_b, sz, bpp)
+
+#define define_itxfm_funcs(sz, bpp)      \
+    define_itxfm(idct,  idct,  sz, bpp); \
+    define_itxfm(iadst, idct,  sz, bpp); \
+    define_itxfm(idct,  iadst, sz, bpp); \
+    define_itxfm(iadst, iadst, sz, bpp)
+
+define_itxfm_funcs(4,  BPP);
+define_itxfm_funcs(8,  BPP);
+define_itxfm_funcs(16, BPP);
+define_itxfm(idct, idct, 32, BPP);
+define_itxfm(iwht, iwht, 4,  BPP);
+
+
+static av_cold void vp9dsp_itxfm_init_aarch64(VP9DSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+#define init_itxfm2(tx, sz, bpp)                                               \
+    dsp->itxfm_add[tx][DCT_DCT]   = ff_vp9_idct_idct_##sz##_add_##bpp##_neon;  \
+    dsp->itxfm_add[tx][DCT_ADST]  = ff_vp9_iadst_idct_##sz##_add_##bpp##_neon; \
+    dsp->itxfm_add[tx][ADST_DCT]  = ff_vp9_idct_iadst_##sz##_add_##bpp##_neon; \
+    dsp->itxfm_add[tx][ADST_ADST] = ff_vp9_iadst_iadst_##sz##_add_##bpp##_neon
+#define init_itxfm(tx, sz, bpp) init_itxfm2(tx, sz, bpp)
+
+#define init_idct2(tx, nm, bpp)     \
+    dsp->itxfm_add[tx][DCT_DCT]   = \
+    dsp->itxfm_add[tx][ADST_DCT]  = \
+    dsp->itxfm_add[tx][DCT_ADST]  = \
+    dsp->itxfm_add[tx][ADST_ADST] = ff_vp9_##nm##_add_##bpp##_neon
+#define init_idct(tx, nm, bpp) init_idct2(tx, nm, bpp)
+
+        init_itxfm(TX_4X4,   4x4,   BPP);
+        init_itxfm(TX_8X8,   8x8,   BPP);
+        init_itxfm(TX_16X16, 16x16, BPP);
+        init_idct(TX_32X32, idct_idct_32x32, BPP);
+        init_idct(4,        iwht_iwht_4x4,   BPP);
+    }
+}
+
+#define define_loop_filter(dir, wd, size, bpp) \
+void ff_vp9_loop_filter_##dir##_##wd##_##size##_##bpp##_neon(uint8_t *dst, ptrdiff_t stride, int E, int I, int H)
+
+#define define_loop_filters(wd, size, bpp) \
+    define_loop_filter(h, wd, size, bpp);  \
+    define_loop_filter(v, wd, size, bpp)
+
+define_loop_filters(4,  8,  BPP);
+define_loop_filters(8,  8,  BPP);
+define_loop_filters(16, 8,  BPP);
+
+define_loop_filters(16, 16, BPP);
+
+define_loop_filters(44, 16, BPP);
+define_loop_filters(48, 16, BPP);
+define_loop_filters(84, 16, BPP);
+define_loop_filters(88, 16, BPP);
+
+static av_cold void vp9dsp_loopfilter_init_aarch64(VP9DSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+#define init_lpf_func_8(idx1, idx2, dir, wd, bpp) \
+    dsp->loop_filter_8[idx1][idx2] = ff_vp9_loop_filter_##dir##_##wd##_8_##bpp##_neon
+
+#define init_lpf_func_16(idx, dir, bpp) \
+    dsp->loop_filter_16[idx] = ff_vp9_loop_filter_##dir##_16_16_##bpp##_neon
+
+#define init_lpf_func_mix2(idx1, idx2, idx3, dir, wd, bpp) \
+    dsp->loop_filter_mix2[idx1][idx2][idx3] = ff_vp9_loop_filter_##dir##_##wd##_16_##bpp##_neon
+
+#define init_lpf_funcs_8_wd(idx, wd, bpp) \
+    init_lpf_func_8(idx, 0, h, wd, bpp);  \
+    init_lpf_func_8(idx, 1, v, wd, bpp)
+
+#define init_lpf_funcs_16(bpp)   \
+    init_lpf_func_16(0, h, bpp); \
+    init_lpf_func_16(1, v, bpp)
+
+#define init_lpf_funcs_mix2_wd(idx1, idx2, wd, bpp) \
+    init_lpf_func_mix2(idx1, idx2, 0, h, wd, bpp);  \
+    init_lpf_func_mix2(idx1, idx2, 1, v, wd, bpp)
+
+#define init_lpf_funcs_8(bpp)        \
+    init_lpf_funcs_8_wd(0, 4,  bpp); \
+    init_lpf_funcs_8_wd(1, 8,  bpp); \
+    init_lpf_funcs_8_wd(2, 16, bpp)
+
+#define init_lpf_funcs_mix2(bpp)           \
+    init_lpf_funcs_mix2_wd(0, 0, 44, bpp); \
+    init_lpf_funcs_mix2_wd(0, 1, 48, bpp); \
+    init_lpf_funcs_mix2_wd(1, 0, 84, bpp); \
+    init_lpf_funcs_mix2_wd(1, 1, 88, bpp)
+
+        init_lpf_funcs_8(BPP);
+        init_lpf_funcs_16(BPP);
+        init_lpf_funcs_mix2(BPP);
+    }
+}
+
+av_cold void INIT_FUNC(VP9DSPContext *dsp)
+{
+    vp9dsp_mc_init_aarch64(dsp);
+    vp9dsp_loopfilter_init_aarch64(dsp);
+    vp9dsp_itxfm_init_aarch64(dsp);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init_aarch64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init_aarch64.c
new file mode 100644
index 000000000..4c699759f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/aarch64/vp9dsp_init_aarch64.c
@@ -0,0 +1,258 @@
+/*
+ * Copyright (c) 2016 Google Inc.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/internal.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/vp9dsp.h"
+#include "vp9dsp_init.h"
+
+#define declare_fpel(type, sz)                                          \
+void ff_vp9_##type##sz##_neon(uint8_t *dst, ptrdiff_t dst_stride,       \
+                              const uint8_t *src, ptrdiff_t src_stride, \
+                              int h, int mx, int my)
+
+#define declare_copy_avg(sz) \
+    declare_fpel(copy, sz);  \
+    declare_fpel(avg , sz)
+
+#define decl_mc_func(op, filter, dir, sz)                                                \
+void ff_vp9_##op##_##filter##sz##_##dir##_neon(uint8_t *dst, ptrdiff_t dst_stride,       \
+                                               const uint8_t *src, ptrdiff_t src_stride, \
+                                               int h, int mx, int my)
+
+#define define_8tap_2d_fn(op, filter, sz)                                         \
+static void op##_##filter##sz##_hv_neon(uint8_t *dst, ptrdiff_t dst_stride,       \
+                                        const uint8_t *src, ptrdiff_t src_stride, \
+                                        int h, int mx, int my)                    \
+{                                                                                 \
+    LOCAL_ALIGNED_16(uint8_t, temp, [((1 + (sz < 64)) * sz + 8) * sz]);           \
+    /* We only need h + 7 lines, but the horizontal filter assumes an             \
+     * even number of rows, so filter h + 8 lines here. */                        \
+    ff_vp9_put_##filter##sz##_h_neon(temp, sz,                                    \
+                                     src - 3 * src_stride, src_stride,            \
+                                     h + 8, mx, 0);                               \
+    ff_vp9_##op##_##filter##sz##_v_neon(dst, dst_stride,                          \
+                                        temp + 3 * sz, sz,                        \
+                                        h, 0, my);                                \
+}
+
+#define decl_filter_funcs(op, dir, sz)  \
+    decl_mc_func(op, regular, dir, sz); \
+    decl_mc_func(op, sharp,   dir, sz); \
+    decl_mc_func(op, smooth,  dir, sz)
+
+#define decl_mc_funcs(sz)           \
+    decl_filter_funcs(put, h,  sz); \
+    decl_filter_funcs(avg, h,  sz); \
+    decl_filter_funcs(put, v,  sz); \
+    decl_filter_funcs(avg, v,  sz); \
+    decl_filter_funcs(put, hv, sz); \
+    decl_filter_funcs(avg, hv, sz)
+
+#define ff_vp9_copy32_neon ff_vp9_copy32_aarch64
+#define ff_vp9_copy64_neon ff_vp9_copy64_aarch64
+
+declare_copy_avg(64);
+declare_copy_avg(32);
+declare_copy_avg(16);
+declare_copy_avg(8);
+declare_copy_avg(4);
+
+decl_mc_funcs(64);
+decl_mc_funcs(32);
+decl_mc_funcs(16);
+decl_mc_funcs(8);
+decl_mc_funcs(4);
+
+#define define_8tap_2d_funcs(sz)        \
+    define_8tap_2d_fn(put, regular, sz) \
+    define_8tap_2d_fn(put, sharp,   sz) \
+    define_8tap_2d_fn(put, smooth,  sz) \
+    define_8tap_2d_fn(avg, regular, sz) \
+    define_8tap_2d_fn(avg, sharp,   sz) \
+    define_8tap_2d_fn(avg, smooth,  sz)
+
+define_8tap_2d_funcs(64)
+define_8tap_2d_funcs(32)
+define_8tap_2d_funcs(16)
+define_8tap_2d_funcs(8)
+define_8tap_2d_funcs(4)
+
+static av_cold void vp9dsp_mc_init_aarch64(VP9DSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+#define init_fpel(idx1, idx2, sz, type, suffix)      \
+    dsp->mc[idx1][FILTER_8TAP_SMOOTH ][idx2][0][0] = \
+    dsp->mc[idx1][FILTER_8TAP_REGULAR][idx2][0][0] = \
+    dsp->mc[idx1][FILTER_8TAP_SHARP  ][idx2][0][0] = \
+    dsp->mc[idx1][FILTER_BILINEAR    ][idx2][0][0] = ff_vp9_##type##sz##suffix
+
+#define init_copy(idx, sz, suffix) \
+    init_fpel(idx, 0, sz, copy, suffix)
+
+#define init_avg(idx, sz, suffix) \
+    init_fpel(idx, 1, sz, avg,  suffix)
+
+#define init_copy_avg(idx, sz) \
+    init_copy(idx, sz, _neon); \
+    init_avg (idx, sz, _neon)
+
+    if (have_armv8(cpu_flags)) {
+        init_copy(0, 64, _aarch64);
+        init_copy(1, 32, _aarch64);
+    }
+
+    if (have_neon(cpu_flags)) {
+#define init_mc_func(idx1, idx2, op, filter, fname, dir, mx, my, sz, pfx) \
+    dsp->mc[idx1][filter][idx2][mx][my] = pfx##op##_##fname##sz##_##dir##_neon
+
+#define init_mc_funcs(idx, dir, mx, my, sz, pfx)                                   \
+    init_mc_func(idx, 0, put, FILTER_8TAP_REGULAR, regular, dir, mx, my, sz, pfx); \
+    init_mc_func(idx, 0, put, FILTER_8TAP_SHARP,   sharp,   dir, mx, my, sz, pfx); \
+    init_mc_func(idx, 0, put, FILTER_8TAP_SMOOTH,  smooth,  dir, mx, my, sz, pfx); \
+    init_mc_func(idx, 1, avg, FILTER_8TAP_REGULAR, regular, dir, mx, my, sz, pfx); \
+    init_mc_func(idx, 1, avg, FILTER_8TAP_SHARP,   sharp,   dir, mx, my, sz, pfx); \
+    init_mc_func(idx, 1, avg, FILTER_8TAP_SMOOTH,  smooth,  dir, mx, my, sz, pfx)
+
+#define init_mc_funcs_dirs(idx, sz)            \
+    init_mc_funcs(idx, h,  1, 0, sz, ff_vp9_); \
+    init_mc_funcs(idx, v,  0, 1, sz, ff_vp9_); \
+    init_mc_funcs(idx, hv, 1, 1, sz,)
+
+        init_avg(0, 64, _neon);
+        init_avg(1, 32, _neon);
+        init_copy_avg(2, 16);
+        init_copy_avg(3, 8);
+        init_copy_avg(4, 4);
+
+        init_mc_funcs_dirs(0, 64);
+        init_mc_funcs_dirs(1, 32);
+        init_mc_funcs_dirs(2, 16);
+        init_mc_funcs_dirs(3, 8);
+        init_mc_funcs_dirs(4, 4);
+    }
+}
+
+#define define_itxfm(type_a, type_b, sz)                                   \
+void ff_vp9_##type_a##_##type_b##_##sz##x##sz##_add_neon(uint8_t *_dst,    \
+                                                         ptrdiff_t stride, \
+                                                         int16_t *_block, int eob)
+
+#define define_itxfm_funcs(sz)      \
+    define_itxfm(idct,  idct,  sz); \
+    define_itxfm(iadst, idct,  sz); \
+    define_itxfm(idct,  iadst, sz); \
+    define_itxfm(iadst, iadst, sz)
+
+define_itxfm_funcs(4);
+define_itxfm_funcs(8);
+define_itxfm_funcs(16);
+define_itxfm(idct, idct, 32);
+define_itxfm(iwht, iwht, 4);
+
+
+static av_cold void vp9dsp_itxfm_init_aarch64(VP9DSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+#define init_itxfm(tx, sz)                                             \
+    dsp->itxfm_add[tx][DCT_DCT]   = ff_vp9_idct_idct_##sz##_add_neon;  \
+    dsp->itxfm_add[tx][DCT_ADST]  = ff_vp9_iadst_idct_##sz##_add_neon; \
+    dsp->itxfm_add[tx][ADST_DCT]  = ff_vp9_idct_iadst_##sz##_add_neon; \
+    dsp->itxfm_add[tx][ADST_ADST] = ff_vp9_iadst_iadst_##sz##_add_neon
+
+#define init_idct(tx, nm)           \
+    dsp->itxfm_add[tx][DCT_DCT]   = \
+    dsp->itxfm_add[tx][ADST_DCT]  = \
+    dsp->itxfm_add[tx][DCT_ADST]  = \
+    dsp->itxfm_add[tx][ADST_ADST] = ff_vp9_##nm##_add_neon
+
+        init_itxfm(TX_4X4, 4x4);
+        init_itxfm(TX_8X8, 8x8);
+        init_itxfm(TX_16X16, 16x16);
+        init_idct(TX_32X32, idct_idct_32x32);
+        init_idct(4, iwht_iwht_4x4);
+    }
+}
+
+#define define_loop_filter(dir, wd, len) \
+void ff_vp9_loop_filter_##dir##_##wd##_##len##_neon(uint8_t *dst, ptrdiff_t stride, int E, int I, int H)
+
+#define define_loop_filters(wd, len) \
+    define_loop_filter(h, wd, len);  \
+    define_loop_filter(v, wd, len)
+
+define_loop_filters(4, 8);
+define_loop_filters(8, 8);
+define_loop_filters(16, 8);
+
+define_loop_filters(16, 16);
+
+define_loop_filters(44, 16);
+define_loop_filters(48, 16);
+define_loop_filters(84, 16);
+define_loop_filters(88, 16);
+
+static av_cold void vp9dsp_loopfilter_init_aarch64(VP9DSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        dsp->loop_filter_8[0][1] = ff_vp9_loop_filter_v_4_8_neon;
+        dsp->loop_filter_8[0][0] = ff_vp9_loop_filter_h_4_8_neon;
+        dsp->loop_filter_8[1][1] = ff_vp9_loop_filter_v_8_8_neon;
+        dsp->loop_filter_8[1][0] = ff_vp9_loop_filter_h_8_8_neon;
+        dsp->loop_filter_8[2][1] = ff_vp9_loop_filter_v_16_8_neon;
+        dsp->loop_filter_8[2][0] = ff_vp9_loop_filter_h_16_8_neon;
+
+        dsp->loop_filter_16[0] = ff_vp9_loop_filter_h_16_16_neon;
+        dsp->loop_filter_16[1] = ff_vp9_loop_filter_v_16_16_neon;
+
+        dsp->loop_filter_mix2[0][0][0] = ff_vp9_loop_filter_h_44_16_neon;
+        dsp->loop_filter_mix2[0][0][1] = ff_vp9_loop_filter_v_44_16_neon;
+        dsp->loop_filter_mix2[0][1][0] = ff_vp9_loop_filter_h_48_16_neon;
+        dsp->loop_filter_mix2[0][1][1] = ff_vp9_loop_filter_v_48_16_neon;
+        dsp->loop_filter_mix2[1][0][0] = ff_vp9_loop_filter_h_84_16_neon;
+        dsp->loop_filter_mix2[1][0][1] = ff_vp9_loop_filter_v_84_16_neon;
+        dsp->loop_filter_mix2[1][1][0] = ff_vp9_loop_filter_h_88_16_neon;
+        dsp->loop_filter_mix2[1][1][1] = ff_vp9_loop_filter_v_88_16_neon;
+    }
+}
+
+av_cold void ff_vp9dsp_init_aarch64(VP9DSPContext *dsp, int bpp)
+{
+    if (bpp == 10) {
+        ff_vp9dsp_init_10bpp_aarch64(dsp);
+        return;
+    } else if (bpp == 12) {
+        ff_vp9dsp_init_12bpp_aarch64(dsp);
+        return;
+    } else if (bpp != 8)
+        return;
+
+    vp9dsp_mc_init_aarch64(dsp);
+    vp9dsp_loopfilter_init_aarch64(dsp);
+    vp9dsp_itxfm_init_aarch64(dsp);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3.c
new file mode 100644
index 000000000..6d09288ee
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3.c
@@ -0,0 +1,211 @@
+/*
+ * Common code between the AC-3 encoder and decoder
+ * Copyright (c) 2000 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Common code between the AC-3 encoder and decoder.
+ */
+
+#include "libavutil/common.h"
+
+#include "avcodec.h"
+#include "ac3.h"
+
+/**
+ * Starting frequency coefficient bin for each critical band.
+ */
+const uint8_t ff_ac3_band_start_tab[AC3_CRITICAL_BANDS+1] = {
+      0,  1,   2,   3,   4,   5,   6,   7,   8,   9,
+     10,  11, 12,  13,  14,  15,  16,  17,  18,  19,
+     20,  21, 22,  23,  24,  25,  26,  27,  28,  31,
+     34,  37, 40,  43,  46,  49,  55,  61,  67,  73,
+     79,  85, 97, 109, 121, 133, 157, 181, 205, 229, 253
+};
+
+/**
+ * Map each frequency coefficient bin to the critical band that contains it.
+ */
+const uint8_t ff_ac3_bin_to_band_tab[253] = {
+     0,
+     1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12,
+    13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+    25, 26, 27, 28, 28, 28, 29, 29, 29, 30, 30, 30,
+    31, 31, 31, 32, 32, 32, 33, 33, 33, 34, 34, 34,
+    35, 35, 35, 35, 35, 35, 36, 36, 36, 36, 36, 36,
+    37, 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, 38,
+    39, 39, 39, 39, 39, 39, 40, 40, 40, 40, 40, 40,
+    41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41,
+    42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
+    43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+    44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44,
+    45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45,
+    45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45,
+    46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
+    46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
+    47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+    47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+    48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48,
+    49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+    49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
+};
+
+static inline int calc_lowcomp1(int a, int b0, int b1, int c)
+{
+    if ((b0 + 256) == b1) {
+        a = c;
+    } else if (b0 > b1) {
+        a = FFMAX(a - 64, 0);
+    }
+    return a;
+}
+
+static inline int calc_lowcomp(int a, int b0, int b1, int bin)
+{
+    if (bin < 7) {
+        return calc_lowcomp1(a, b0, b1, 384);
+    } else if (bin < 20) {
+        return calc_lowcomp1(a, b0, b1, 320);
+    } else {
+        return FFMAX(a - 128, 0);
+    }
+}
+
+void ff_ac3_bit_alloc_calc_psd(int8_t *exp, int start, int end, int16_t *psd,
+                               int16_t *band_psd)
+{
+    int bin, band;
+
+    /* exponent mapping to PSD */
+    for (bin = start; bin < end; bin++) {
+        psd[bin]=(3072 - (exp[bin] << 7));
+    }
+
+    /* PSD integration */
+    bin  = start;
+    band = ff_ac3_bin_to_band_tab[start];
+    do {
+        int v = psd[bin++];
+        int band_end = FFMIN(ff_ac3_band_start_tab[band+1], end);
+        for (; bin < band_end; bin++) {
+            int max = FFMAX(v, psd[bin]);
+            /* logadd */
+            int adr = FFMIN(max - ((v + psd[bin] + 1) >> 1), 255);
+            v = max + ff_ac3_log_add_tab[adr];
+        }
+        band_psd[band++] = v;
+    } while (end > ff_ac3_band_start_tab[band]);
+}
+
+int ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd,
+                               int start, int end, int fast_gain, int is_lfe,
+                               int dba_mode, int dba_nsegs, uint8_t *dba_offsets,
+                               uint8_t *dba_lengths, uint8_t *dba_values,
+                               int16_t *mask)
+{
+    int16_t excite[AC3_CRITICAL_BANDS]; /* excitation */
+    int band;
+    int band_start, band_end, begin, end1;
+    int lowcomp, fastleak, slowleak;
+
+    if (end <= 0)
+        return AVERROR_INVALIDDATA;
+
+    /* excitation function */
+    band_start = ff_ac3_bin_to_band_tab[start];
+    band_end   = ff_ac3_bin_to_band_tab[end-1] + 1;
+
+    if (band_start == 0) {
+        lowcomp = 0;
+        lowcomp = calc_lowcomp1(lowcomp, band_psd[0], band_psd[1], 384);
+        excite[0] = band_psd[0] - fast_gain - lowcomp;
+        lowcomp = calc_lowcomp1(lowcomp, band_psd[1], band_psd[2], 384);
+        excite[1] = band_psd[1] - fast_gain - lowcomp;
+        begin = 7;
+        for (band = 2; band < 7; band++) {
+            if (!(is_lfe && band == 6))
+                lowcomp = calc_lowcomp1(lowcomp, band_psd[band], band_psd[band+1], 384);
+            fastleak = band_psd[band] - fast_gain;
+            slowleak = band_psd[band] - s->slow_gain;
+            excite[band] = fastleak - lowcomp;
+            if (!(is_lfe && band == 6)) {
+                if (band_psd[band] <= band_psd[band+1]) {
+                    begin = band + 1;
+                    break;
+                }
+            }
+        }
+
+        end1 = FFMIN(band_end, 22);
+        for (band = begin; band < end1; band++) {
+            if (!(is_lfe && band == 6))
+                lowcomp = calc_lowcomp(lowcomp, band_psd[band], band_psd[band+1], band);
+            fastleak = FFMAX(fastleak - s->fast_decay, band_psd[band] - fast_gain);
+            slowleak = FFMAX(slowleak - s->slow_decay, band_psd[band] - s->slow_gain);
+            excite[band] = FFMAX(fastleak - lowcomp, slowleak);
+        }
+        begin = 22;
+    } else {
+        /* coupling channel */
+        begin = band_start;
+        fastleak = (s->cpl_fast_leak << 8) + 768;
+        slowleak = (s->cpl_slow_leak << 8) + 768;
+    }
+
+    for (band = begin; band < band_end; band++) {
+        fastleak = FFMAX(fastleak - s->fast_decay, band_psd[band] - fast_gain);
+        slowleak = FFMAX(slowleak - s->slow_decay, band_psd[band] - s->slow_gain);
+        excite[band] = FFMAX(fastleak, slowleak);
+    }
+
+    /* compute masking curve */
+
+    for (band = band_start; band < band_end; band++) {
+        int tmp = s->db_per_bit - band_psd[band];
+        if (tmp > 0) {
+            excite[band] += tmp >> 2;
+        }
+        mask[band] = FFMAX(ff_ac3_hearing_threshold_tab[band >> s->sr_shift][s->sr_code], excite[band]);
+    }
+
+    /* delta bit allocation */
+
+    if (dba_mode == DBA_REUSE || dba_mode == DBA_NEW) {
+        int i, seg, delta;
+        if (dba_nsegs > 8)
+            return -1;
+        band = band_start;
+        for (seg = 0; seg < dba_nsegs; seg++) {
+            band += dba_offsets[seg];
+            if (band >= AC3_CRITICAL_BANDS || dba_lengths[seg] > AC3_CRITICAL_BANDS-band)
+                return -1;
+            if (dba_values[seg] >= 4) {
+                delta = (dba_values[seg] - 3) * 128;
+            } else {
+                delta = (dba_values[seg] - 4) * 128;
+            }
+            for (i = 0; i < dba_lengths[seg]; i++) {
+                mask[band++] += delta;
+            }
+        }
+    }
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3.h
new file mode 100644
index 000000000..f8f6a81f4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3.h
@@ -0,0 +1,263 @@
+/*
+ * Common code between the AC-3 encoder and decoder
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Common code between the AC-3 encoder and decoder.
+ */
+
+#ifndef AVCODEC_AC3_H
+#define AVCODEC_AC3_H
+
+#define AC3_MAX_CODED_FRAME_SIZE 3840 /* in bytes */
+#define EAC3_MAX_CHANNELS 16          /**< maximum number of channels in EAC3 */
+#define AC3_MAX_CHANNELS 7            /**< maximum number of channels, including coupling channel */
+#define CPL_CH 0                      /**< coupling channel index */
+
+#define AC3_MAX_COEFS   256
+#define AC3_BLOCK_SIZE  256
+#define AC3_MAX_BLOCKS    6
+#define AC3_FRAME_SIZE (AC3_MAX_BLOCKS * 256)
+#define AC3_WINDOW_SIZE (AC3_BLOCK_SIZE * 2)
+#define AC3_CRITICAL_BANDS 50
+#define AC3_MAX_CPL_BANDS  18
+
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "ac3tab.h"
+
+/* exponent encoding strategy */
+#define EXP_REUSE 0
+#define EXP_NEW   1
+
+#define EXP_D15   1
+#define EXP_D25   2
+#define EXP_D45   3
+
+#ifndef USE_FIXED
+#define USE_FIXED 0
+#endif
+
+#if USE_FIXED
+
+#define FFT_FLOAT 0
+
+#define FIXR(a)                 ((int)((a) * 0 + 0.5))
+#define FIXR12(a)               ((int)((a) * 4096 + 0.5))
+#define FIXR15(a)               ((int)((a) * 32768 + 0.5))
+#define ROUND15(x)              ((x) + 16384) >> 15
+
+#define AC3_RENAME(x)           x ## _fixed
+#define AC3_NORM(norm)          (1<<24)/(norm)
+#define AC3_MUL(a,b)            ((((int64_t) (a)) * (b))>>12)
+#define AC3_RANGE(x)            ((x)|(((x)&128)<<1))
+#define AC3_HEAVY_RANGE(x)      ((x)<<1)
+#define AC3_DYNAMIC_RANGE(x)    (x)
+#define AC3_SPX_BLEND(x)        (x)
+#define AC3_DYNAMIC_RANGE1      0
+
+typedef int                     INTFLOAT;
+typedef int16_t                 SHORTFLOAT;
+
+#else /* USE_FIXED */
+
+#define FIXR(x)                 ((float)(x))
+#define FIXR12(x)               ((float)(x))
+#define FIXR15(x)               ((float)(x))
+#define ROUND15(x)              (x)
+
+#define AC3_RENAME(x)           x
+#define AC3_NORM(norm)          (1.0f/(norm))
+#define AC3_MUL(a,b)            ((a) * (b))
+#define AC3_RANGE(x)            (dynamic_range_tab[(x)])
+#define AC3_HEAVY_RANGE(x)      (ff_ac3_heavy_dynamic_range_tab[(x)])
+#define AC3_DYNAMIC_RANGE(x)    (powf(x,  s->drc_scale))
+#define AC3_SPX_BLEND(x)        (x)* (1.0f/32)
+#define AC3_DYNAMIC_RANGE1      1.0f
+
+typedef float                   INTFLOAT;
+typedef float                   SHORTFLOAT;
+
+#endif /* USE_FIXED */
+
+#define AC3_LEVEL(x)            ROUND15((x) * FIXR15(M_SQRT1_2))
+
+/* pre-defined gain values */
+#define LEVEL_PLUS_3DB          M_SQRT2
+#define LEVEL_PLUS_1POINT5DB    1.1892071150027209
+#define LEVEL_MINUS_1POINT5DB   0.8408964152537145
+#define LEVEL_MINUS_3DB         M_SQRT1_2
+#define LEVEL_MINUS_4POINT5DB   0.5946035575013605
+#define LEVEL_MINUS_6DB         0.5000000000000000
+#define LEVEL_MINUS_9DB         0.3535533905932738
+#define LEVEL_ZERO              0.0000000000000000
+#define LEVEL_ONE               1.0000000000000000
+
+/** Delta bit allocation strategy */
+typedef enum {
+    DBA_REUSE = 0,
+    DBA_NEW,
+    DBA_NONE,
+    DBA_RESERVED
+} AC3DeltaStrategy;
+
+/** Channel mode (audio coding mode) */
+typedef enum {
+    AC3_CHMODE_DUALMONO = 0,
+    AC3_CHMODE_MONO,
+    AC3_CHMODE_STEREO,
+    AC3_CHMODE_3F,
+    AC3_CHMODE_2F1R,
+    AC3_CHMODE_3F1R,
+    AC3_CHMODE_2F2R,
+    AC3_CHMODE_3F2R
+} AC3ChannelMode;
+
+/** Dolby Surround mode */
+typedef enum AC3DolbySurroundMode {
+    AC3_DSURMOD_NOTINDICATED = 0,
+    AC3_DSURMOD_OFF,
+    AC3_DSURMOD_ON,
+    AC3_DSURMOD_RESERVED
+} AC3DolbySurroundMode;
+
+/** Dolby Surround EX mode */
+typedef enum AC3DolbySurroundEXMode {
+    AC3_DSUREXMOD_NOTINDICATED = 0,
+    AC3_DSUREXMOD_OFF,
+    AC3_DSUREXMOD_ON,
+    AC3_DSUREXMOD_PLIIZ
+} AC3DolbySurroundEXMode;
+
+/** Dolby Headphone mode */
+typedef enum AC3DolbyHeadphoneMode {
+    AC3_DHEADPHONMOD_NOTINDICATED = 0,
+    AC3_DHEADPHONMOD_OFF,
+    AC3_DHEADPHONMOD_ON,
+    AC3_DHEADPHONMOD_RESERVED
+} AC3DolbyHeadphoneMode;
+
+/** Preferred Stereo Downmix mode */
+typedef enum AC3PreferredStereoDownmixMode {
+    AC3_DMIXMOD_NOTINDICATED = 0,
+    AC3_DMIXMOD_LTRT,
+    AC3_DMIXMOD_LORO,
+    AC3_DMIXMOD_DPLII // reserved value in A/52, but used by encoders to indicate DPL2
+} AC3PreferredStereoDownmixMode;
+
+typedef struct AC3BitAllocParameters {
+    int sr_code;
+    int sr_shift;
+    int slow_gain, slow_decay, fast_decay, db_per_bit, floor;
+    int cpl_fast_leak, cpl_slow_leak;
+} AC3BitAllocParameters;
+
+/**
+ * @struct AC3HeaderInfo
+ * Coded AC-3 header values up to the lfeon element, plus derived values.
+ */
+typedef struct AC3HeaderInfo {
+    /** @name Coded elements
+     * @{
+     */
+    uint16_t sync_word;
+    uint16_t crc1;
+    uint8_t sr_code;
+    uint8_t bitstream_id;
+    uint8_t bitstream_mode;
+    uint8_t channel_mode;
+    uint8_t lfe_on;
+    uint8_t frame_type;
+    int substreamid;                        ///< substream identification
+    int center_mix_level;                   ///< Center mix level index
+    int surround_mix_level;                 ///< Surround mix level index
+    uint16_t channel_map;
+    int num_blocks;                         ///< number of audio blocks
+    int dolby_surround_mode;
+    /** @} */
+
+    /** @name Derived values
+     * @{
+     */
+    uint8_t sr_shift;
+    uint16_t sample_rate;
+    uint32_t bit_rate;
+    uint8_t channels;
+    uint16_t frame_size;
+    uint64_t channel_layout;
+    /** @} */
+} AC3HeaderInfo;
+
+typedef enum {
+    EAC3_FRAME_TYPE_INDEPENDENT = 0,
+    EAC3_FRAME_TYPE_DEPENDENT,
+    EAC3_FRAME_TYPE_AC3_CONVERT,
+    EAC3_FRAME_TYPE_RESERVED
+} EAC3FrameType;
+
+void ff_ac3_common_init(void);
+
+/**
+ * Calculate the log power-spectral density of the input signal.
+ * This gives a rough estimate of signal power in the frequency domain by using
+ * the spectral envelope (exponents).  The psd is also separately grouped
+ * into critical bands for use in the calculating the masking curve.
+ * 128 units in psd = -6 dB.  The dbknee parameter in AC3BitAllocParameters
+ * determines the reference level.
+ *
+ * @param[in]  exp        frequency coefficient exponents
+ * @param[in]  start      starting bin location
+ * @param[in]  end        ending bin location
+ * @param[out] psd        signal power for each frequency bin
+ * @param[out] band_psd   signal power for each critical band
+ */
+void ff_ac3_bit_alloc_calc_psd(int8_t *exp, int start, int end, int16_t *psd,
+                               int16_t *band_psd);
+
+/**
+ * Calculate the masking curve.
+ * First, the excitation is calculated using parameters in s and the signal
+ * power in each critical band.  The excitation is compared with a predefined
+ * hearing threshold table to produce the masking curve.  If delta bit
+ * allocation information is provided, it is used for adjusting the masking
+ * curve, usually to give a closer match to a better psychoacoustic model.
+ *
+ * @param[in]  s            adjustable bit allocation parameters
+ * @param[in]  band_psd     signal power for each critical band
+ * @param[in]  start        starting bin location
+ * @param[in]  end          ending bin location
+ * @param[in]  fast_gain    fast gain (estimated signal-to-mask ratio)
+ * @param[in]  is_lfe       whether or not the channel being processed is the LFE
+ * @param[in]  dba_mode     delta bit allocation mode (none, reuse, or new)
+ * @param[in]  dba_nsegs    number of delta segments
+ * @param[in]  dba_offsets  location offsets for each segment
+ * @param[in]  dba_lengths  length of each segment
+ * @param[in]  dba_values   delta bit allocation for each segment
+ * @param[out] mask         calculated masking curve
+ * @return returns 0 for success, non-zero for error
+ */
+int ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd,
+                               int start, int end, int fast_gain, int is_lfe,
+                               int dba_mode, int dba_nsegs, uint8_t *dba_offsets,
+                               uint8_t *dba_lengths, uint8_t *dba_values,
+                               int16_t *mask);
+
+#endif /* AVCODEC_AC3_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3_parser.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3_parser.c
new file mode 100644
index 000000000..1e203ae6a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3_parser.c
@@ -0,0 +1,258 @@
+/*
+ * AC-3 parser
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/channel_layout.h"
+#include "parser.h"
+#include "ac3_parser.h"
+#include "ac3_parser_internal.h"
+#include "aac_ac3_parser.h"
+#include "get_bits.h"
+
+
+#define AC3_HEADER_SIZE 7
+
+#if CONFIG_AC3_PARSER
+
+static const uint8_t eac3_blocks[4] = {
+    1, 2, 3, 6
+};
+
+/**
+ * Table for center mix levels
+ * reference: Section 5.4.2.4 cmixlev
+ */
+static const uint8_t center_levels[4] = { 4, 5, 6, 5 };
+
+/**
+ * Table for surround mix levels
+ * reference: Section 5.4.2.5 surmixlev
+ */
+static const uint8_t surround_levels[4] = { 4, 6, 7, 6 };
+
+
+int ff_ac3_parse_header(GetBitContext *gbc, AC3HeaderInfo *hdr)
+{
+    int frame_size_code;
+
+    memset(hdr, 0, sizeof(*hdr));
+
+    hdr->sync_word = get_bits(gbc, 16);
+    if(hdr->sync_word != 0x0B77)
+        return AAC_AC3_PARSE_ERROR_SYNC;
+
+    /* read ahead to bsid to distinguish between AC-3 and E-AC-3 */
+    hdr->bitstream_id = show_bits_long(gbc, 29) & 0x1F;
+    if(hdr->bitstream_id > 16)
+        return AAC_AC3_PARSE_ERROR_BSID;
+
+    hdr->num_blocks = 6;
+
+    /* set default mix levels */
+    hdr->center_mix_level   = 5;  // -4.5dB
+    hdr->surround_mix_level = 6;  // -6.0dB
+
+    /* set default dolby surround mode */
+    hdr->dolby_surround_mode = AC3_DSURMOD_NOTINDICATED;
+
+    if(hdr->bitstream_id <= 10) {
+        /* Normal AC-3 */
+        hdr->crc1 = get_bits(gbc, 16);
+        hdr->sr_code = get_bits(gbc, 2);
+        if(hdr->sr_code == 3)
+            return AAC_AC3_PARSE_ERROR_SAMPLE_RATE;
+
+        frame_size_code = get_bits(gbc, 6);
+        if(frame_size_code > 37)
+            return AAC_AC3_PARSE_ERROR_FRAME_SIZE;
+
+        skip_bits(gbc, 5); // skip bsid, already got it
+
+        hdr->bitstream_mode = get_bits(gbc, 3);
+        hdr->channel_mode = get_bits(gbc, 3);
+
+        if(hdr->channel_mode == AC3_CHMODE_STEREO) {
+            hdr->dolby_surround_mode = get_bits(gbc, 2);
+        } else {
+            if((hdr->channel_mode & 1) && hdr->channel_mode != AC3_CHMODE_MONO)
+                hdr->  center_mix_level =   center_levels[get_bits(gbc, 2)];
+            if(hdr->channel_mode & 4)
+                hdr->surround_mix_level = surround_levels[get_bits(gbc, 2)];
+        }
+        hdr->lfe_on = get_bits1(gbc);
+
+        hdr->sr_shift = FFMAX(hdr->bitstream_id, 8) - 8;
+        hdr->sample_rate = ff_ac3_sample_rate_tab[hdr->sr_code] >> hdr->sr_shift;
+        hdr->bit_rate = (ff_ac3_bitrate_tab[frame_size_code>>1] * 1000) >> hdr->sr_shift;
+        hdr->channels = ff_ac3_channels_tab[hdr->channel_mode] + hdr->lfe_on;
+        hdr->frame_size = ff_ac3_frame_size_tab[frame_size_code][hdr->sr_code] * 2;
+        hdr->frame_type = EAC3_FRAME_TYPE_AC3_CONVERT; //EAC3_FRAME_TYPE_INDEPENDENT;
+        hdr->substreamid = 0;
+    } else {
+        /* Enhanced AC-3 */
+        hdr->crc1 = 0;
+        hdr->frame_type = get_bits(gbc, 2);
+        if(hdr->frame_type == EAC3_FRAME_TYPE_RESERVED)
+            return AAC_AC3_PARSE_ERROR_FRAME_TYPE;
+
+        hdr->substreamid = get_bits(gbc, 3);
+
+        hdr->frame_size = (get_bits(gbc, 11) + 1) << 1;
+        if(hdr->frame_size < AC3_HEADER_SIZE)
+            return AAC_AC3_PARSE_ERROR_FRAME_SIZE;
+
+        hdr->sr_code = get_bits(gbc, 2);
+        if (hdr->sr_code == 3) {
+            int sr_code2 = get_bits(gbc, 2);
+            if(sr_code2 == 3)
+                return AAC_AC3_PARSE_ERROR_SAMPLE_RATE;
+            hdr->sample_rate = ff_ac3_sample_rate_tab[sr_code2] / 2;
+            hdr->sr_shift = 1;
+        } else {
+            hdr->num_blocks = eac3_blocks[get_bits(gbc, 2)];
+            hdr->sample_rate = ff_ac3_sample_rate_tab[hdr->sr_code];
+            hdr->sr_shift = 0;
+        }
+
+        hdr->channel_mode = get_bits(gbc, 3);
+        hdr->lfe_on = get_bits1(gbc);
+
+        hdr->bit_rate = 8LL * hdr->frame_size * hdr->sample_rate /
+                        (hdr->num_blocks * 256);
+        hdr->channels = ff_ac3_channels_tab[hdr->channel_mode] + hdr->lfe_on;
+    }
+    hdr->channel_layout = avpriv_ac3_channel_layout_tab[hdr->channel_mode];
+    if (hdr->lfe_on)
+        hdr->channel_layout |= AV_CH_LOW_FREQUENCY;
+
+    return 0;
+}
+
+// TODO: Better way to pass AC3HeaderInfo fields to mov muxer.
+int avpriv_ac3_parse_header(AC3HeaderInfo **phdr, const uint8_t *buf,
+                            size_t size)
+{
+    GetBitContext gb;
+    AC3HeaderInfo *hdr;
+    int err;
+
+    if (!*phdr)
+        *phdr = av_mallocz(sizeof(AC3HeaderInfo));
+    if (!*phdr)
+        return AVERROR(ENOMEM);
+    hdr = *phdr;
+
+    err = init_get_bits8(&gb, buf, size);
+    if (err < 0)
+        return AVERROR_INVALIDDATA;
+    err = ff_ac3_parse_header(&gb, hdr);
+    if (err < 0)
+        return AVERROR_INVALIDDATA;
+
+    return get_bits_count(&gb);
+}
+
+int av_ac3_parse_header(const uint8_t *buf, size_t size,
+                        uint8_t *bitstream_id, uint16_t *frame_size)
+{
+    GetBitContext gb;
+    AC3HeaderInfo hdr;
+    int err;
+
+    init_get_bits8(&gb, buf, size);
+    err = ff_ac3_parse_header(&gb, &hdr);
+    if (err < 0)
+        return AVERROR_INVALIDDATA;
+
+    *bitstream_id = hdr.bitstream_id;
+    *frame_size   = hdr.frame_size;
+
+    return 0;
+}
+
+static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info,
+        int *need_next_header, int *new_frame_start)
+{
+    int err;
+    union {
+        uint64_t u64;
+        uint8_t  u8[8 + AV_INPUT_BUFFER_PADDING_SIZE];
+    } tmp = { av_be2ne64(state) };
+    AC3HeaderInfo hdr;
+    GetBitContext gbc;
+
+    init_get_bits(&gbc, tmp.u8+8-AC3_HEADER_SIZE, 54);
+    err = ff_ac3_parse_header(&gbc, &hdr);
+
+    if(err < 0)
+        return 0;
+
+    hdr_info->sample_rate = hdr.sample_rate;
+    hdr_info->bit_rate = hdr.bit_rate;
+    hdr_info->channels = hdr.channels;
+    hdr_info->channel_layout = hdr.channel_layout;
+    hdr_info->samples = hdr.num_blocks * 256;
+    hdr_info->service_type = hdr.bitstream_mode;
+    if (hdr.bitstream_mode == 0x7 && hdr.channels > 1)
+        hdr_info->service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
+    if(hdr.bitstream_id>10)
+        hdr_info->codec_id = AV_CODEC_ID_EAC3;
+    else if (hdr_info->codec_id == AV_CODEC_ID_NONE)
+        hdr_info->codec_id = AV_CODEC_ID_AC3;
+
+    *new_frame_start  = (hdr.frame_type != EAC3_FRAME_TYPE_DEPENDENT);
+    *need_next_header = *new_frame_start || (hdr.frame_type != EAC3_FRAME_TYPE_AC3_CONVERT);
+    return hdr.frame_size;
+}
+
+static av_cold int ac3_parse_init(AVCodecParserContext *s1)
+{
+    AACAC3ParseContext *s = s1->priv_data;
+    s->header_size = AC3_HEADER_SIZE;
+    s->sync = ac3_sync;
+    return 0;
+}
+
+
+AVCodecParser ff_ac3_parser = {
+    .codec_ids      = { AV_CODEC_ID_AC3, AV_CODEC_ID_EAC3 },
+    .priv_data_size = sizeof(AACAC3ParseContext),
+    .parser_init    = ac3_parse_init,
+    .parser_parse   = ff_aac_ac3_parse,
+    .parser_close   = ff_parse_close,
+};
+
+#else
+
+int avpriv_ac3_parse_header(AC3HeaderInfo **phdr, const uint8_t *buf,
+                            size_t size)
+{
+    return AVERROR(ENOSYS);
+}
+
+int av_ac3_parse_header(const uint8_t *buf, size_t size,
+                        uint8_t *bitstream_id, uint16_t *frame_size)
+{
+    return AVERROR(ENOSYS);
+}
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3_parser.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3_parser.h
new file mode 100644
index 000000000..ff8cc4cf0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3_parser.h
@@ -0,0 +1,36 @@
+/*
+ * AC-3 parser prototypes
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AC3_PARSER_H
+#define AVCODEC_AC3_PARSER_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+/**
+ * Extract the bitstream ID and the frame size from AC-3 data.
+ */
+int av_ac3_parse_header(const uint8_t *buf, size_t size,
+                        uint8_t *bitstream_id, uint16_t *frame_size);
+
+
+#endif /* AVCODEC_AC3_PARSER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3_parser_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3_parser_internal.h
new file mode 100644
index 000000000..3648802a7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3_parser_internal.h
@@ -0,0 +1,42 @@
+/*
+ * AC-3 parser internal code
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AC3_PARSER_INTERNAL_H
+#define AVCODEC_AC3_PARSER_INTERNAL_H
+
+#include "ac3.h"
+#include "get_bits.h"
+
+/**
+ * Parse AC-3 frame header.
+ * Parse the header up to the lfeon element, which is the first 52 or 54 bits
+ * depending on the audio coding mode.
+ * @param[in]  gbc BitContext containing the first 54 bits of the frame.
+ * @param[out] hdr Pointer to struct where header info is written.
+ * @return Returns 0 on success, -1 if there is a sync word mismatch,
+ * -2 if the bsid (version) element is invalid, -3 if the fscod (sample rate)
+ * element is invalid, or -4 if the frmsizecod (bit rate) element is invalid.
+ */
+int ff_ac3_parse_header(GetBitContext *gbc, AC3HeaderInfo *hdr);
+
+int avpriv_ac3_parse_header(AC3HeaderInfo **hdr, const uint8_t *buf,
+                            size_t size);
+
+#endif /* AVCODEC_AC3_PARSER_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec.c
new file mode 100644
index 000000000..eaa327a3e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec.c
@@ -0,0 +1,1843 @@
+/*
+ * AC-3 Audio Decoder
+ * This code was developed as part of Google Summer of Code 2006.
+ * E-AC-3 support was added as part of Google Summer of Code 2007.
+ *
+ * Copyright (c) 2006 Kartikey Mahendra BHATT (bhattkm at gmail dot com)
+ * Copyright (c) 2007-2008 Bartlomiej Wolowiec <bartek.wolowiec@gmail.com>
+ * Copyright (c) 2007 Justin Ruggles <justin.ruggles@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdio.h>
+#include <stddef.h>
+#include <math.h>
+#include <string.h>
+
+#include "libavutil/channel_layout.h"
+#include "libavutil/crc.h"
+#include "libavutil/downmix_info.h"
+#include "libavutil/opt.h"
+#include "bswapdsp.h"
+#include "internal.h"
+#include "aac_ac3_parser.h"
+#include "ac3_parser_internal.h"
+#include "ac3dec.h"
+#include "ac3dec_data.h"
+#include "kbdwin.h"
+
+/**
+ * table for ungrouping 3 values in 7 bits.
+ * used for exponents and bap=2 mantissas
+ */
+static uint8_t ungroup_3_in_7_bits_tab[128][3];
+
+/** tables for ungrouping mantissas */
+static int b1_mantissas[32][3];
+static int b2_mantissas[128][3];
+static int b3_mantissas[8];
+static int b4_mantissas[128][2];
+static int b5_mantissas[16];
+
+/**
+ * Quantization table: levels for symmetric. bits for asymmetric.
+ * reference: Table 7.18 Mapping of bap to Quantizer
+ */
+static const uint8_t quantization_tab[16] = {
+    0, 3, 5, 7, 11, 15,
+    5, 6, 7, 8, 9, 10, 11, 12, 14, 16
+};
+
+#if (!USE_FIXED)
+/** dynamic range table. converts codes to scale factors. */
+static float dynamic_range_tab[256];
+float ff_ac3_heavy_dynamic_range_tab[256];
+#endif
+
+/** Adjustments in dB gain */
+static const float gain_levels[9] = {
+    LEVEL_PLUS_3DB,
+    LEVEL_PLUS_1POINT5DB,
+    LEVEL_ONE,
+    LEVEL_MINUS_1POINT5DB,
+    LEVEL_MINUS_3DB,
+    LEVEL_MINUS_4POINT5DB,
+    LEVEL_MINUS_6DB,
+    LEVEL_ZERO,
+    LEVEL_MINUS_9DB
+};
+
+/** Adjustments in dB gain (LFE, +10 to -21 dB) */
+static const float gain_levels_lfe[32] = {
+    3.162275, 2.818382, 2.511886, 2.238719, 1.995261, 1.778278, 1.584893,
+    1.412536, 1.258924, 1.122018, 1.000000, 0.891251, 0.794328, 0.707946,
+    0.630957, 0.562341, 0.501187, 0.446683, 0.398107, 0.354813, 0.316227,
+    0.281838, 0.251188, 0.223872, 0.199526, 0.177828, 0.158489, 0.141253,
+    0.125892, 0.112201, 0.100000, 0.089125
+};
+
+/**
+ * Table for default stereo downmixing coefficients
+ * reference: Section 7.8.2 Downmixing Into Two Channels
+ */
+static const uint8_t ac3_default_coeffs[8][5][2] = {
+    { { 2, 7 }, { 7, 2 },                               },
+    { { 4, 4 },                                         },
+    { { 2, 7 }, { 7, 2 },                               },
+    { { 2, 7 }, { 5, 5 }, { 7, 2 },                     },
+    { { 2, 7 }, { 7, 2 }, { 6, 6 },                     },
+    { { 2, 7 }, { 5, 5 }, { 7, 2 }, { 8, 8 },           },
+    { { 2, 7 }, { 7, 2 }, { 6, 7 }, { 7, 6 },           },
+    { { 2, 7 }, { 5, 5 }, { 7, 2 }, { 6, 7 }, { 7, 6 }, },
+};
+
+/**
+ * Symmetrical Dequantization
+ * reference: Section 7.3.3 Expansion of Mantissas for Symmetrical Quantization
+ *            Tables 7.19 to 7.23
+ */
+static inline int
+symmetric_dequant(int code, int levels)
+{
+    return ((code - (levels >> 1)) * (1 << 24)) / levels;
+}
+
+/*
+ * Initialize tables at runtime.
+ */
+static av_cold void ac3_tables_init(void)
+{
+    int i;
+
+    /* generate table for ungrouping 3 values in 7 bits
+       reference: Section 7.1.3 Exponent Decoding */
+    for (i = 0; i < 128; i++) {
+        ungroup_3_in_7_bits_tab[i][0] =  i / 25;
+        ungroup_3_in_7_bits_tab[i][1] = (i % 25) / 5;
+        ungroup_3_in_7_bits_tab[i][2] = (i % 25) % 5;
+    }
+
+    /* generate grouped mantissa tables
+       reference: Section 7.3.5 Ungrouping of Mantissas */
+    for (i = 0; i < 32; i++) {
+        /* bap=1 mantissas */
+        b1_mantissas[i][0] = symmetric_dequant(ff_ac3_ungroup_3_in_5_bits_tab[i][0], 3);
+        b1_mantissas[i][1] = symmetric_dequant(ff_ac3_ungroup_3_in_5_bits_tab[i][1], 3);
+        b1_mantissas[i][2] = symmetric_dequant(ff_ac3_ungroup_3_in_5_bits_tab[i][2], 3);
+    }
+    for (i = 0; i < 128; i++) {
+        /* bap=2 mantissas */
+        b2_mantissas[i][0] = symmetric_dequant(ungroup_3_in_7_bits_tab[i][0], 5);
+        b2_mantissas[i][1] = symmetric_dequant(ungroup_3_in_7_bits_tab[i][1], 5);
+        b2_mantissas[i][2] = symmetric_dequant(ungroup_3_in_7_bits_tab[i][2], 5);
+
+        /* bap=4 mantissas */
+        b4_mantissas[i][0] = symmetric_dequant(i / 11, 11);
+        b4_mantissas[i][1] = symmetric_dequant(i % 11, 11);
+    }
+    /* generate ungrouped mantissa tables
+       reference: Tables 7.21 and 7.23 */
+    for (i = 0; i < 7; i++) {
+        /* bap=3 mantissas */
+        b3_mantissas[i] = symmetric_dequant(i, 7);
+    }
+    for (i = 0; i < 15; i++) {
+        /* bap=5 mantissas */
+        b5_mantissas[i] = symmetric_dequant(i, 15);
+    }
+
+#if (!USE_FIXED)
+    /* generate dynamic range table
+       reference: Section 7.7.1 Dynamic Range Control */
+    for (i = 0; i < 256; i++) {
+        int v = (i >> 5) - ((i >> 7) << 3) - 5;
+        dynamic_range_tab[i] = powf(2.0f, v) * ((i & 0x1F) | 0x20);
+    }
+
+    /* generate compr dynamic range table
+       reference: Section 7.7.2 Heavy Compression */
+    for (i = 0; i < 256; i++) {
+        int v = (i >> 4) - ((i >> 7) << 4) - 4;
+        ff_ac3_heavy_dynamic_range_tab[i] = powf(2.0f, v) * ((i & 0xF) | 0x10);
+    }
+#endif
+}
+
+/**
+ * AVCodec initialization
+ */
+static av_cold int ac3_decode_init(AVCodecContext *avctx)
+{
+    AC3DecodeContext *s = avctx->priv_data;
+    int i;
+
+    s->avctx = avctx;
+
+    ac3_tables_init();
+    ff_mdct_init(&s->imdct_256, 8, 1, 1.0);
+    ff_mdct_init(&s->imdct_512, 9, 1, 1.0);
+    AC3_RENAME(ff_kbd_window_init)(s->window, 5.0, 256);
+    ff_bswapdsp_init(&s->bdsp);
+
+#if (USE_FIXED)
+    s->fdsp = avpriv_alloc_fixed_dsp(avctx->flags & AV_CODEC_FLAG_BITEXACT);
+#else
+    s->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
+    ff_fmt_convert_init(&s->fmt_conv, avctx);
+#endif
+
+    ff_ac3dsp_init(&s->ac3dsp, avctx->flags & AV_CODEC_FLAG_BITEXACT);
+    av_lfg_init(&s->dith_state, 0);
+
+    if (USE_FIXED)
+        avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
+    else
+        avctx->sample_fmt = AV_SAMPLE_FMT_FLTP;
+
+    /* allow downmixing to stereo or mono */
+    if (avctx->channels > 1 &&
+        avctx->request_channel_layout == AV_CH_LAYOUT_MONO)
+        avctx->channels = 1;
+    else if (avctx->channels > 2 &&
+             avctx->request_channel_layout == AV_CH_LAYOUT_STEREO)
+        avctx->channels = 2;
+    s->downmixed = 1;
+
+    for (i = 0; i < AC3_MAX_CHANNELS; i++) {
+        s->xcfptr[i] = s->transform_coeffs[i];
+        s->dlyptr[i] = s->delay[i];
+    }
+
+    return 0;
+}
+
+/**
+ * Parse the 'sync info' and 'bit stream info' from the AC-3 bitstream.
+ * GetBitContext within AC3DecodeContext must point to
+ * the start of the synchronized AC-3 bitstream.
+ */
+static int ac3_parse_header(AC3DecodeContext *s)
+{
+    GetBitContext *gbc = &s->gbc;
+    int i;
+
+    /* read the rest of the bsi. read twice for dual mono mode. */
+    i = !s->channel_mode;
+    do {
+        s->dialog_normalization[(!s->channel_mode)-i] = -get_bits(gbc, 5);
+        if (s->dialog_normalization[(!s->channel_mode)-i] == 0) {
+            s->dialog_normalization[(!s->channel_mode)-i] = -31;
+        }
+        if (s->target_level != 0) {
+            s->level_gain[(!s->channel_mode)-i] = powf(2.0f,
+                (float)(s->target_level -
+                s->dialog_normalization[(!s->channel_mode)-i])/6.0f);
+        }
+        if (s->compression_exists[(!s->channel_mode)-i] = get_bits1(gbc)) {
+            s->heavy_dynamic_range[(!s->channel_mode)-i] =
+                AC3_HEAVY_RANGE(get_bits(gbc, 8));
+        }
+        if (get_bits1(gbc))
+            skip_bits(gbc, 8); //skip language code
+        if (get_bits1(gbc))
+            skip_bits(gbc, 7); //skip audio production information
+    } while (i--);
+
+    skip_bits(gbc, 2); //skip copyright bit and original bitstream bit
+
+    /* skip the timecodes or parse the Alternate Bit Stream Syntax */
+    if (s->bitstream_id != 6) {
+        if (get_bits1(gbc))
+            skip_bits(gbc, 14); //skip timecode1
+        if (get_bits1(gbc))
+            skip_bits(gbc, 14); //skip timecode2
+    } else {
+        if (get_bits1(gbc)) {
+            s->preferred_downmix       = get_bits(gbc, 2);
+            s->center_mix_level_ltrt   = get_bits(gbc, 3);
+            s->surround_mix_level_ltrt = av_clip(get_bits(gbc, 3), 3, 7);
+            s->center_mix_level        = get_bits(gbc, 3);
+            s->surround_mix_level      = av_clip(get_bits(gbc, 3), 3, 7);
+        }
+        if (get_bits1(gbc)) {
+            s->dolby_surround_ex_mode = get_bits(gbc, 2);
+            s->dolby_headphone_mode   = get_bits(gbc, 2);
+            skip_bits(gbc, 10); // skip adconvtyp (1), xbsi2 (8), encinfo (1)
+        }
+    }
+
+    /* skip additional bitstream info */
+    if (get_bits1(gbc)) {
+        i = get_bits(gbc, 6);
+        do {
+            skip_bits(gbc, 8);
+        } while (i--);
+    }
+
+    return 0;
+}
+
+/**
+ * Common function to parse AC-3 or E-AC-3 frame header
+ */
+static int parse_frame_header(AC3DecodeContext *s)
+{
+    AC3HeaderInfo hdr;
+    int err;
+
+    err = ff_ac3_parse_header(&s->gbc, &hdr);
+    if (err)
+        return err;
+
+    /* get decoding parameters from header info */
+    s->bit_alloc_params.sr_code     = hdr.sr_code;
+    s->bitstream_id                 = hdr.bitstream_id;
+    s->bitstream_mode               = hdr.bitstream_mode;
+    s->channel_mode                 = hdr.channel_mode;
+    s->lfe_on                       = hdr.lfe_on;
+    s->bit_alloc_params.sr_shift    = hdr.sr_shift;
+    s->sample_rate                  = hdr.sample_rate;
+    s->bit_rate                     = hdr.bit_rate;
+    s->channels                     = hdr.channels;
+    s->fbw_channels                 = s->channels - s->lfe_on;
+    s->lfe_ch                       = s->fbw_channels + 1;
+    s->frame_size                   = hdr.frame_size;
+    s->superframe_size             += hdr.frame_size;
+    s->preferred_downmix            = AC3_DMIXMOD_NOTINDICATED;
+    s->center_mix_level             = hdr.center_mix_level;
+    s->center_mix_level_ltrt        = 4; // -3.0dB
+    s->surround_mix_level           = hdr.surround_mix_level;
+    s->surround_mix_level_ltrt      = 4; // -3.0dB
+    s->lfe_mix_level_exists         = 0;
+    s->num_blocks                   = hdr.num_blocks;
+    s->frame_type                   = hdr.frame_type;
+    s->substreamid                  = hdr.substreamid;
+    s->dolby_surround_mode          = hdr.dolby_surround_mode;
+    s->dolby_surround_ex_mode       = AC3_DSUREXMOD_NOTINDICATED;
+    s->dolby_headphone_mode         = AC3_DHEADPHONMOD_NOTINDICATED;
+
+    if (s->lfe_on) {
+        s->start_freq[s->lfe_ch]     = 0;
+        s->end_freq[s->lfe_ch]       = 7;
+        s->num_exp_groups[s->lfe_ch] = 2;
+        s->channel_in_cpl[s->lfe_ch] = 0;
+    }
+
+    if (s->bitstream_id <= 10) {
+        s->eac3                  = 0;
+        s->snr_offset_strategy   = 2;
+        s->block_switch_syntax   = 1;
+        s->dither_flag_syntax    = 1;
+        s->bit_allocation_syntax = 1;
+        s->fast_gain_syntax      = 0;
+        s->first_cpl_leak        = 0;
+        s->dba_syntax            = 1;
+        s->skip_syntax           = 1;
+        memset(s->channel_uses_aht, 0, sizeof(s->channel_uses_aht));
+        return ac3_parse_header(s);
+    } else if (CONFIG_EAC3_DECODER) {
+        s->eac3 = 1;
+        return ff_eac3_parse_header(s);
+    } else {
+        av_log(s->avctx, AV_LOG_ERROR, "E-AC-3 support not compiled in\n");
+        return AVERROR(ENOSYS);
+    }
+}
+
+/**
+ * Set stereo downmixing coefficients based on frame header info.
+ * reference: Section 7.8.2 Downmixing Into Two Channels
+ */
+static int set_downmix_coeffs(AC3DecodeContext *s)
+{
+    int i;
+    float cmix = gain_levels[s->  center_mix_level];
+    float smix = gain_levels[s->surround_mix_level];
+    float norm0, norm1;
+    float downmix_coeffs[2][AC3_MAX_CHANNELS];
+
+    if (!s->downmix_coeffs[0]) {
+        s->downmix_coeffs[0] = av_malloc_array(2 * AC3_MAX_CHANNELS,
+                                               sizeof(**s->downmix_coeffs));
+        if (!s->downmix_coeffs[0])
+            return AVERROR(ENOMEM);
+        s->downmix_coeffs[1] = s->downmix_coeffs[0] + AC3_MAX_CHANNELS;
+    }
+
+    for (i = 0; i < s->fbw_channels; i++) {
+        downmix_coeffs[0][i] = gain_levels[ac3_default_coeffs[s->channel_mode][i][0]];
+        downmix_coeffs[1][i] = gain_levels[ac3_default_coeffs[s->channel_mode][i][1]];
+    }
+    if (s->channel_mode > 1 && s->channel_mode & 1) {
+        downmix_coeffs[0][1] = downmix_coeffs[1][1] = cmix;
+    }
+    if (s->channel_mode == AC3_CHMODE_2F1R || s->channel_mode == AC3_CHMODE_3F1R) {
+        int nf = s->channel_mode - 2;
+        downmix_coeffs[0][nf] = downmix_coeffs[1][nf] = smix * LEVEL_MINUS_3DB;
+    }
+    if (s->channel_mode == AC3_CHMODE_2F2R || s->channel_mode == AC3_CHMODE_3F2R) {
+        int nf = s->channel_mode - 4;
+        downmix_coeffs[0][nf] = downmix_coeffs[1][nf+1] = smix;
+    }
+
+    /* renormalize */
+    norm0 = norm1 = 0.0;
+    for (i = 0; i < s->fbw_channels; i++) {
+        norm0 += downmix_coeffs[0][i];
+        norm1 += downmix_coeffs[1][i];
+    }
+    norm0 = 1.0f / norm0;
+    norm1 = 1.0f / norm1;
+    for (i = 0; i < s->fbw_channels; i++) {
+        downmix_coeffs[0][i] *= norm0;
+        downmix_coeffs[1][i] *= norm1;
+    }
+
+    if (s->output_mode == AC3_CHMODE_MONO) {
+        for (i = 0; i < s->fbw_channels; i++)
+            downmix_coeffs[0][i] = (downmix_coeffs[0][i] +
+                                    downmix_coeffs[1][i]) * LEVEL_MINUS_3DB;
+    }
+    for (i = 0; i < s->fbw_channels; i++) {
+        s->downmix_coeffs[0][i] = FIXR12(downmix_coeffs[0][i]);
+        s->downmix_coeffs[1][i] = FIXR12(downmix_coeffs[1][i]);
+    }
+
+    return 0;
+}
+
+/**
+ * Decode the grouped exponents according to exponent strategy.
+ * reference: Section 7.1.3 Exponent Decoding
+ */
+static int decode_exponents(AC3DecodeContext *s,
+                            GetBitContext *gbc, int exp_strategy, int ngrps,
+                            uint8_t absexp, int8_t *dexps)
+{
+    int i, j, grp, group_size;
+    int dexp[256];
+    int expacc, prevexp;
+
+    /* unpack groups */
+    group_size = exp_strategy + (exp_strategy == EXP_D45);
+    for (grp = 0, i = 0; grp < ngrps; grp++) {
+        expacc = get_bits(gbc, 7);
+        if (expacc >= 125) {
+            av_log(s->avctx, AV_LOG_ERROR, "expacc %d is out-of-range\n", expacc);
+            return AVERROR_INVALIDDATA;
+        }
+        dexp[i++] = ungroup_3_in_7_bits_tab[expacc][0];
+        dexp[i++] = ungroup_3_in_7_bits_tab[expacc][1];
+        dexp[i++] = ungroup_3_in_7_bits_tab[expacc][2];
+    }
+
+    /* convert to absolute exps and expand groups */
+    prevexp = absexp;
+    for (i = 0, j = 0; i < ngrps * 3; i++) {
+        prevexp += dexp[i] - 2;
+        if (prevexp > 24U) {
+            av_log(s->avctx, AV_LOG_ERROR, "exponent %d is out-of-range\n", prevexp);
+            return AVERROR_INVALIDDATA;
+        }
+        switch (group_size) {
+        case 4: dexps[j++] = prevexp;
+                dexps[j++] = prevexp;
+        case 2: dexps[j++] = prevexp;
+        case 1: dexps[j++] = prevexp;
+        }
+    }
+    return 0;
+}
+
+/**
+ * Generate transform coefficients for each coupled channel in the coupling
+ * range using the coupling coefficients and coupling coordinates.
+ * reference: Section 7.4.3 Coupling Coordinate Format
+ */
+static void calc_transform_coeffs_cpl(AC3DecodeContext *s)
+{
+    int bin, band, ch;
+
+    bin = s->start_freq[CPL_CH];
+    for (band = 0; band < s->num_cpl_bands; band++) {
+        int band_start = bin;
+        int band_end = bin + s->cpl_band_sizes[band];
+        for (ch = 1; ch <= s->fbw_channels; ch++) {
+            if (s->channel_in_cpl[ch]) {
+                int cpl_coord = s->cpl_coords[ch][band] << 5;
+                for (bin = band_start; bin < band_end; bin++) {
+                    s->fixed_coeffs[ch][bin] =
+                        MULH(s->fixed_coeffs[CPL_CH][bin] * (1 << 4), cpl_coord);
+                }
+                if (ch == 2 && s->phase_flags[band]) {
+                    for (bin = band_start; bin < band_end; bin++)
+                        s->fixed_coeffs[2][bin] = -s->fixed_coeffs[2][bin];
+                }
+            }
+        }
+        bin = band_end;
+    }
+}
+
+/**
+ * Grouped mantissas for 3-level 5-level and 11-level quantization
+ */
+typedef struct mant_groups {
+    int b1_mant[2];
+    int b2_mant[2];
+    int b4_mant;
+    int b1;
+    int b2;
+    int b4;
+} mant_groups;
+
+/**
+ * Decode the transform coefficients for a particular channel
+ * reference: Section 7.3 Quantization and Decoding of Mantissas
+ */
+static void ac3_decode_transform_coeffs_ch(AC3DecodeContext *s, int ch_index, mant_groups *m)
+{
+    int start_freq = s->start_freq[ch_index];
+    int end_freq   = s->end_freq[ch_index];
+    uint8_t *baps  = s->bap[ch_index];
+    int8_t *exps   = s->dexps[ch_index];
+    int32_t *coeffs = s->fixed_coeffs[ch_index];
+    int dither     = (ch_index == CPL_CH) || s->dither_flag[ch_index];
+    GetBitContext *gbc = &s->gbc;
+    int freq;
+
+    for (freq = start_freq; freq < end_freq; freq++) {
+        int bap = baps[freq];
+        int mantissa;
+        switch (bap) {
+        case 0:
+            /* random noise with approximate range of -0.707 to 0.707 */
+            if (dither)
+                mantissa = (((av_lfg_get(&s->dith_state)>>8)*181)>>8) - 5931008;
+            else
+                mantissa = 0;
+            break;
+        case 1:
+            if (m->b1) {
+                m->b1--;
+                mantissa = m->b1_mant[m->b1];
+            } else {
+                int bits      = get_bits(gbc, 5);
+                mantissa      = b1_mantissas[bits][0];
+                m->b1_mant[1] = b1_mantissas[bits][1];
+                m->b1_mant[0] = b1_mantissas[bits][2];
+                m->b1         = 2;
+            }
+            break;
+        case 2:
+            if (m->b2) {
+                m->b2--;
+                mantissa = m->b2_mant[m->b2];
+            } else {
+                int bits      = get_bits(gbc, 7);
+                mantissa      = b2_mantissas[bits][0];
+                m->b2_mant[1] = b2_mantissas[bits][1];
+                m->b2_mant[0] = b2_mantissas[bits][2];
+                m->b2         = 2;
+            }
+            break;
+        case 3:
+            mantissa = b3_mantissas[get_bits(gbc, 3)];
+            break;
+        case 4:
+            if (m->b4) {
+                m->b4 = 0;
+                mantissa = m->b4_mant;
+            } else {
+                int bits   = get_bits(gbc, 7);
+                mantissa   = b4_mantissas[bits][0];
+                m->b4_mant = b4_mantissas[bits][1];
+                m->b4      = 1;
+            }
+            break;
+        case 5:
+            mantissa = b5_mantissas[get_bits(gbc, 4)];
+            break;
+        default: /* 6 to 15 */
+            /* Shift mantissa and sign-extend it. */
+            if (bap > 15) {
+                av_log(s->avctx, AV_LOG_ERROR, "bap %d is invalid in plain AC-3\n", bap);
+                bap = 15;
+            }
+            mantissa = (unsigned)get_sbits(gbc, quantization_tab[bap]) << (24 - quantization_tab[bap]);
+            break;
+        }
+        coeffs[freq] = mantissa >> exps[freq];
+    }
+}
+
+/**
+ * Remove random dithering from coupling range coefficients with zero-bit
+ * mantissas for coupled channels which do not use dithering.
+ * reference: Section 7.3.4 Dither for Zero Bit Mantissas (bap=0)
+ */
+static void remove_dithering(AC3DecodeContext *s) {
+    int ch, i;
+
+    for (ch = 1; ch <= s->fbw_channels; ch++) {
+        if (!s->dither_flag[ch] && s->channel_in_cpl[ch]) {
+            for (i = s->start_freq[CPL_CH]; i < s->end_freq[CPL_CH]; i++) {
+                if (!s->bap[CPL_CH][i])
+                    s->fixed_coeffs[ch][i] = 0;
+            }
+        }
+    }
+}
+
+static inline void decode_transform_coeffs_ch(AC3DecodeContext *s, int blk,
+                                              int ch, mant_groups *m)
+{
+    if (!s->channel_uses_aht[ch]) {
+        ac3_decode_transform_coeffs_ch(s, ch, m);
+    } else {
+        /* if AHT is used, mantissas for all blocks are encoded in the first
+           block of the frame. */
+        int bin;
+        if (CONFIG_EAC3_DECODER && !blk)
+            ff_eac3_decode_transform_coeffs_aht_ch(s, ch);
+        for (bin = s->start_freq[ch]; bin < s->end_freq[ch]; bin++) {
+            s->fixed_coeffs[ch][bin] = s->pre_mantissa[ch][bin][blk] >> s->dexps[ch][bin];
+        }
+    }
+}
+
+/**
+ * Decode the transform coefficients.
+ */
+static inline void decode_transform_coeffs(AC3DecodeContext *s, int blk)
+{
+    int ch, end;
+    int got_cplchan = 0;
+    mant_groups m;
+
+    m.b1 = m.b2 = m.b4 = 0;
+
+    for (ch = 1; ch <= s->channels; ch++) {
+        /* transform coefficients for full-bandwidth channel */
+        decode_transform_coeffs_ch(s, blk, ch, &m);
+        /* transform coefficients for coupling channel come right after the
+           coefficients for the first coupled channel*/
+        if (s->channel_in_cpl[ch])  {
+            if (!got_cplchan) {
+                decode_transform_coeffs_ch(s, blk, CPL_CH, &m);
+                calc_transform_coeffs_cpl(s);
+                got_cplchan = 1;
+            }
+            end = s->end_freq[CPL_CH];
+        } else {
+            end = s->end_freq[ch];
+        }
+        do
+            s->fixed_coeffs[ch][end] = 0;
+        while (++end < 256);
+    }
+
+    /* zero the dithered coefficients for appropriate channels */
+    remove_dithering(s);
+}
+
+/**
+ * Stereo rematrixing.
+ * reference: Section 7.5.4 Rematrixing : Decoding Technique
+ */
+static void do_rematrixing(AC3DecodeContext *s)
+{
+    int bnd, i;
+    int end, bndend;
+
+    end = FFMIN(s->end_freq[1], s->end_freq[2]);
+
+    for (bnd = 0; bnd < s->num_rematrixing_bands; bnd++) {
+        if (s->rematrixing_flags[bnd]) {
+            bndend = FFMIN(end, ff_ac3_rematrix_band_tab[bnd + 1]);
+            for (i = ff_ac3_rematrix_band_tab[bnd]; i < bndend; i++) {
+                int tmp0 = s->fixed_coeffs[1][i];
+                s->fixed_coeffs[1][i] += s->fixed_coeffs[2][i];
+                s->fixed_coeffs[2][i]  = tmp0 - s->fixed_coeffs[2][i];
+            }
+        }
+    }
+}
+
+/**
+ * Inverse MDCT Transform.
+ * Convert frequency domain coefficients to time-domain audio samples.
+ * reference: Section 7.9.4 Transformation Equations
+ */
+static inline void do_imdct(AC3DecodeContext *s, int channels, int offset)
+{
+    int ch;
+
+    for (ch = 1; ch <= channels; ch++) {
+        if (s->block_switch[ch]) {
+            int i;
+            FFTSample *x = s->tmp_output + 128;
+            for (i = 0; i < 128; i++)
+                x[i] = s->transform_coeffs[ch][2 * i];
+            s->imdct_256.imdct_half(&s->imdct_256, s->tmp_output, x);
+#if USE_FIXED
+            s->fdsp->vector_fmul_window_scaled(s->outptr[ch - 1], s->delay[ch - 1 + offset],
+                                       s->tmp_output, s->window, 128, 8);
+#else
+            s->fdsp->vector_fmul_window(s->outptr[ch - 1], s->delay[ch - 1 + offset],
+                                       s->tmp_output, s->window, 128);
+#endif
+            for (i = 0; i < 128; i++)
+                x[i] = s->transform_coeffs[ch][2 * i + 1];
+            s->imdct_256.imdct_half(&s->imdct_256, s->delay[ch - 1 + offset], x);
+        } else {
+            s->imdct_512.imdct_half(&s->imdct_512, s->tmp_output, s->transform_coeffs[ch]);
+#if USE_FIXED
+            s->fdsp->vector_fmul_window_scaled(s->outptr[ch - 1], s->delay[ch - 1 + offset],
+                                       s->tmp_output, s->window, 128, 8);
+#else
+            s->fdsp->vector_fmul_window(s->outptr[ch - 1], s->delay[ch - 1 + offset],
+                                       s->tmp_output, s->window, 128);
+#endif
+            memcpy(s->delay[ch - 1 + offset], s->tmp_output + 128, 128 * sizeof(FFTSample));
+        }
+    }
+}
+
+/**
+ * Upmix delay samples from stereo to original channel layout.
+ */
+static void ac3_upmix_delay(AC3DecodeContext *s)
+{
+    int channel_data_size = sizeof(s->delay[0]);
+    switch (s->channel_mode) {
+    case AC3_CHMODE_DUALMONO:
+    case AC3_CHMODE_STEREO:
+        /* upmix mono to stereo */
+        memcpy(s->delay[1], s->delay[0], channel_data_size);
+        break;
+    case AC3_CHMODE_2F2R:
+        memset(s->delay[3], 0, channel_data_size);
+    case AC3_CHMODE_2F1R:
+        memset(s->delay[2], 0, channel_data_size);
+        break;
+    case AC3_CHMODE_3F2R:
+        memset(s->delay[4], 0, channel_data_size);
+    case AC3_CHMODE_3F1R:
+        memset(s->delay[3], 0, channel_data_size);
+    case AC3_CHMODE_3F:
+        memcpy(s->delay[2], s->delay[1], channel_data_size);
+        memset(s->delay[1], 0, channel_data_size);
+        break;
+    }
+}
+
+/**
+ * Decode band structure for coupling, spectral extension, or enhanced coupling.
+ * The band structure defines how many subbands are in each band.  For each
+ * subband in the range, 1 means it is combined with the previous band, and 0
+ * means that it starts a new band.
+ *
+ * @param[in] gbc bit reader context
+ * @param[in] blk block number
+ * @param[in] eac3 flag to indicate E-AC-3
+ * @param[in] ecpl flag to indicate enhanced coupling
+ * @param[in] start_subband subband number for start of range
+ * @param[in] end_subband subband number for end of range
+ * @param[in] default_band_struct default band structure table
+ * @param[out] num_bands number of bands (optionally NULL)
+ * @param[out] band_sizes array containing the number of bins in each band (optionally NULL)
+ * @param[in,out] band_struct current band structure
+ */
+static void decode_band_structure(GetBitContext *gbc, int blk, int eac3,
+                                  int ecpl, int start_subband, int end_subband,
+                                  const uint8_t *default_band_struct,
+                                  int *num_bands, uint8_t *band_sizes,
+                                  uint8_t *band_struct, int band_struct_size)
+{
+    int subbnd, bnd, n_subbands, n_bands=0;
+    uint8_t bnd_sz[22];
+
+    n_subbands = end_subband - start_subband;
+
+    if (!blk)
+        memcpy(band_struct, default_band_struct, band_struct_size);
+
+    av_assert0(band_struct_size >= start_subband + n_subbands);
+
+    band_struct += start_subband + 1;
+
+    /* decode band structure from bitstream or use default */
+    if (!eac3 || get_bits1(gbc)) {
+        for (subbnd = 0; subbnd < n_subbands - 1; subbnd++) {
+            band_struct[subbnd] = get_bits1(gbc);
+        }
+    }
+
+    /* calculate number of bands and band sizes based on band structure.
+       note that the first 4 subbands in enhanced coupling span only 6 bins
+       instead of 12. */
+    if (num_bands || band_sizes ) {
+        n_bands = n_subbands;
+        bnd_sz[0] = ecpl ? 6 : 12;
+        for (bnd = 0, subbnd = 1; subbnd < n_subbands; subbnd++) {
+            int subbnd_size = (ecpl && subbnd < 4) ? 6 : 12;
+            if (band_struct[subbnd - 1]) {
+                n_bands--;
+                bnd_sz[bnd] += subbnd_size;
+            } else {
+                bnd_sz[++bnd] = subbnd_size;
+            }
+        }
+    }
+
+    /* set optional output params */
+    if (num_bands)
+        *num_bands = n_bands;
+    if (band_sizes)
+        memcpy(band_sizes, bnd_sz, n_bands);
+}
+
+static inline int spx_strategy(AC3DecodeContext *s, int blk)
+{
+    GetBitContext *bc = &s->gbc;
+    int fbw_channels = s->fbw_channels;
+    int dst_start_freq, dst_end_freq, src_start_freq,
+        start_subband, end_subband, ch;
+
+    /* determine which channels use spx */
+    if (s->channel_mode == AC3_CHMODE_MONO) {
+        s->channel_uses_spx[1] = 1;
+    } else {
+        for (ch = 1; ch <= fbw_channels; ch++)
+            s->channel_uses_spx[ch] = get_bits1(bc);
+    }
+
+    /* get the frequency bins of the spx copy region and the spx start
+       and end subbands */
+    dst_start_freq = get_bits(bc, 2);
+    start_subband  = get_bits(bc, 3) + 2;
+    if (start_subband > 7)
+        start_subband += start_subband - 7;
+    end_subband    = get_bits(bc, 3) + 5;
+#if USE_FIXED
+    s->spx_dst_end_freq = end_freq_inv_tab[end_subband-5];
+#endif
+    if (end_subband   > 7)
+        end_subband   += end_subband   - 7;
+    dst_start_freq = dst_start_freq * 12 + 25;
+    src_start_freq = start_subband  * 12 + 25;
+    dst_end_freq   = end_subband    * 12 + 25;
+
+    /* check validity of spx ranges */
+    if (start_subband >= end_subband) {
+        av_log(s->avctx, AV_LOG_ERROR, "invalid spectral extension "
+               "range (%d >= %d)\n", start_subband, end_subband);
+        return AVERROR_INVALIDDATA;
+    }
+    if (dst_start_freq >= src_start_freq) {
+        av_log(s->avctx, AV_LOG_ERROR, "invalid spectral extension "
+               "copy start bin (%d >= %d)\n", dst_start_freq, src_start_freq);
+        return AVERROR_INVALIDDATA;
+    }
+
+    s->spx_dst_start_freq = dst_start_freq;
+    s->spx_src_start_freq = src_start_freq;
+    if (!USE_FIXED)
+        s->spx_dst_end_freq   = dst_end_freq;
+
+    decode_band_structure(bc, blk, s->eac3, 0,
+                          start_subband, end_subband,
+                          ff_eac3_default_spx_band_struct,
+                          &s->num_spx_bands,
+                          s->spx_band_sizes,
+                          s->spx_band_struct, sizeof(s->spx_band_struct));
+    return 0;
+}
+
+static inline void spx_coordinates(AC3DecodeContext *s)
+{
+    GetBitContext *bc = &s->gbc;
+    int fbw_channels = s->fbw_channels;
+    int ch, bnd;
+
+    for (ch = 1; ch <= fbw_channels; ch++) {
+        if (s->channel_uses_spx[ch]) {
+            if (s->first_spx_coords[ch] || get_bits1(bc)) {
+                INTFLOAT spx_blend;
+                int bin, master_spx_coord;
+
+                s->first_spx_coords[ch] = 0;
+                spx_blend = AC3_SPX_BLEND(get_bits(bc, 5));
+                master_spx_coord = get_bits(bc, 2) * 3;
+
+                bin = s->spx_src_start_freq;
+                for (bnd = 0; bnd < s->num_spx_bands; bnd++) {
+                    int bandsize = s->spx_band_sizes[bnd];
+                    int spx_coord_exp, spx_coord_mant;
+                    INTFLOAT nratio, sblend, nblend;
+#if USE_FIXED
+                    /* calculate blending factors */
+                    int64_t accu = ((bin << 23) + (bandsize << 22))
+                                 * (int64_t)s->spx_dst_end_freq;
+                    nratio = (int)(accu >> 32);
+                    nratio -= spx_blend << 18;
+
+                    if (nratio < 0) {
+                        nblend = 0;
+                        sblend = 0x800000;
+                    } else if (nratio > 0x7fffff) {
+                        nblend = 14529495; // sqrt(3) in FP.23
+                        sblend = 0;
+                    } else {
+                        nblend = fixed_sqrt(nratio, 23);
+                        accu = (int64_t)nblend * 1859775393;
+                        nblend = (int)((accu + (1<<29)) >> 30);
+                        sblend = fixed_sqrt(0x800000 - nratio, 23);
+                    }
+#else
+                    float spx_coord;
+
+                    /* calculate blending factors */
+                    nratio = ((float)((bin + (bandsize >> 1))) / s->spx_dst_end_freq) - spx_blend;
+                    nratio = av_clipf(nratio, 0.0f, 1.0f);
+                    nblend = sqrtf(3.0f * nratio); // noise is scaled by sqrt(3)
+                                                   // to give unity variance
+                    sblend = sqrtf(1.0f - nratio);
+#endif
+                    bin += bandsize;
+
+                    /* decode spx coordinates */
+                    spx_coord_exp  = get_bits(bc, 4);
+                    spx_coord_mant = get_bits(bc, 2);
+                    if (spx_coord_exp == 15) spx_coord_mant <<= 1;
+                    else                     spx_coord_mant += 4;
+                    spx_coord_mant <<= (25 - spx_coord_exp - master_spx_coord);
+
+                    /* multiply noise and signal blending factors by spx coordinate */
+#if USE_FIXED
+                    accu = (int64_t)nblend * spx_coord_mant;
+                    s->spx_noise_blend[ch][bnd]  = (int)((accu + (1<<22)) >> 23);
+                    accu = (int64_t)sblend * spx_coord_mant;
+                    s->spx_signal_blend[ch][bnd] = (int)((accu + (1<<22)) >> 23);
+#else
+                    spx_coord = spx_coord_mant * (1.0f / (1 << 23));
+                    s->spx_noise_blend [ch][bnd] = nblend * spx_coord;
+                    s->spx_signal_blend[ch][bnd] = sblend * spx_coord;
+#endif
+                }
+            }
+        } else {
+            s->first_spx_coords[ch] = 1;
+        }
+    }
+}
+
+static inline int coupling_strategy(AC3DecodeContext *s, int blk,
+                                    uint8_t *bit_alloc_stages)
+{
+    GetBitContext *bc = &s->gbc;
+    int fbw_channels = s->fbw_channels;
+    int channel_mode = s->channel_mode;
+    int ch;
+
+    memset(bit_alloc_stages, 3, AC3_MAX_CHANNELS);
+    if (!s->eac3)
+        s->cpl_in_use[blk] = get_bits1(bc);
+    if (s->cpl_in_use[blk]) {
+        /* coupling in use */
+        int cpl_start_subband, cpl_end_subband;
+
+        if (channel_mode < AC3_CHMODE_STEREO) {
+            av_log(s->avctx, AV_LOG_ERROR, "coupling not allowed in mono or dual-mono\n");
+            return AVERROR_INVALIDDATA;
+        }
+
+        /* check for enhanced coupling */
+        if (s->eac3 && get_bits1(bc)) {
+            /* TODO: parse enhanced coupling strategy info */
+            avpriv_request_sample(s->avctx, "Enhanced coupling");
+            return AVERROR_PATCHWELCOME;
+        }
+
+        /* determine which channels are coupled */
+        if (s->eac3 && s->channel_mode == AC3_CHMODE_STEREO) {
+            s->channel_in_cpl[1] = 1;
+            s->channel_in_cpl[2] = 1;
+        } else {
+            for (ch = 1; ch <= fbw_channels; ch++)
+                s->channel_in_cpl[ch] = get_bits1(bc);
+        }
+
+        /* phase flags in use */
+        if (channel_mode == AC3_CHMODE_STEREO)
+            s->phase_flags_in_use = get_bits1(bc);
+
+        /* coupling frequency range */
+        cpl_start_subband = get_bits(bc, 4);
+        cpl_end_subband = s->spx_in_use ? (s->spx_src_start_freq - 37) / 12 :
+                                          get_bits(bc, 4) + 3;
+        if (cpl_start_subband >= cpl_end_subband) {
+            av_log(s->avctx, AV_LOG_ERROR, "invalid coupling range (%d >= %d)\n",
+                   cpl_start_subband, cpl_end_subband);
+            return AVERROR_INVALIDDATA;
+        }
+        s->start_freq[CPL_CH] = cpl_start_subband * 12 + 37;
+        s->end_freq[CPL_CH]   = cpl_end_subband   * 12 + 37;
+
+        decode_band_structure(bc, blk, s->eac3, 0, cpl_start_subband,
+                              cpl_end_subband,
+                              ff_eac3_default_cpl_band_struct,
+                              &s->num_cpl_bands, s->cpl_band_sizes,
+                              s->cpl_band_struct, sizeof(s->cpl_band_struct));
+    } else {
+        /* coupling not in use */
+        for (ch = 1; ch <= fbw_channels; ch++) {
+            s->channel_in_cpl[ch] = 0;
+            s->first_cpl_coords[ch] = 1;
+        }
+        s->first_cpl_leak = s->eac3;
+        s->phase_flags_in_use = 0;
+    }
+
+    return 0;
+}
+
+static inline int coupling_coordinates(AC3DecodeContext *s, int blk)
+{
+    GetBitContext *bc = &s->gbc;
+    int fbw_channels = s->fbw_channels;
+    int ch, bnd;
+    int cpl_coords_exist = 0;
+
+    for (ch = 1; ch <= fbw_channels; ch++) {
+        if (s->channel_in_cpl[ch]) {
+            if ((s->eac3 && s->first_cpl_coords[ch]) || get_bits1(bc)) {
+                int master_cpl_coord, cpl_coord_exp, cpl_coord_mant;
+                s->first_cpl_coords[ch] = 0;
+                cpl_coords_exist = 1;
+                master_cpl_coord = 3 * get_bits(bc, 2);
+                for (bnd = 0; bnd < s->num_cpl_bands; bnd++) {
+                    cpl_coord_exp  = get_bits(bc, 4);
+                    cpl_coord_mant = get_bits(bc, 4);
+                    if (cpl_coord_exp == 15)
+                        s->cpl_coords[ch][bnd] = cpl_coord_mant << 22;
+                    else
+                        s->cpl_coords[ch][bnd] = (cpl_coord_mant + 16) << 21;
+                    s->cpl_coords[ch][bnd] >>= (cpl_coord_exp + master_cpl_coord);
+                }
+            } else if (!blk) {
+                av_log(s->avctx, AV_LOG_ERROR, "new coupling coordinates must "
+                       "be present in block 0\n");
+                return AVERROR_INVALIDDATA;
+            }
+        } else {
+            /* channel not in coupling */
+            s->first_cpl_coords[ch] = 1;
+        }
+    }
+    /* phase flags */
+    if (s->channel_mode == AC3_CHMODE_STEREO && cpl_coords_exist) {
+        for (bnd = 0; bnd < s->num_cpl_bands; bnd++) {
+            s->phase_flags[bnd] = s->phase_flags_in_use ? get_bits1(bc) : 0;
+        }
+    }
+
+    return 0;
+}
+
+/**
+ * Decode a single audio block from the AC-3 bitstream.
+ */
+static int decode_audio_block(AC3DecodeContext *s, int blk, int offset)
+{
+    int fbw_channels = s->fbw_channels;
+    int channel_mode = s->channel_mode;
+    int i, bnd, seg, ch, ret;
+    int different_transforms;
+    int downmix_output;
+    int cpl_in_use;
+    GetBitContext *gbc = &s->gbc;
+    uint8_t bit_alloc_stages[AC3_MAX_CHANNELS] = { 0 };
+
+    /* block switch flags */
+    different_transforms = 0;
+    if (s->block_switch_syntax) {
+        for (ch = 1; ch <= fbw_channels; ch++) {
+            s->block_switch[ch] = get_bits1(gbc);
+            if (ch > 1 && s->block_switch[ch] != s->block_switch[1])
+                different_transforms = 1;
+        }
+    }
+
+    /* dithering flags */
+    if (s->dither_flag_syntax) {
+        for (ch = 1; ch <= fbw_channels; ch++) {
+            s->dither_flag[ch] = get_bits1(gbc);
+        }
+    }
+
+    /* dynamic range */
+    i = !s->channel_mode;
+    do {
+        if (get_bits1(gbc)) {
+            /* Allow asymmetric application of DRC when drc_scale > 1.
+               Amplification of quiet sounds is enhanced */
+            int range_bits = get_bits(gbc, 8);
+            INTFLOAT range = AC3_RANGE(range_bits);
+            if (range_bits <= 127 || s->drc_scale <= 1.0)
+                s->dynamic_range[i] = AC3_DYNAMIC_RANGE(range);
+            else
+                s->dynamic_range[i] = range;
+        } else if (blk == 0) {
+            s->dynamic_range[i] = AC3_DYNAMIC_RANGE1;
+        }
+    } while (i--);
+
+    /* spectral extension strategy */
+    if (s->eac3 && (!blk || get_bits1(gbc))) {
+        s->spx_in_use = get_bits1(gbc);
+        if (s->spx_in_use) {
+            if ((ret = spx_strategy(s, blk)) < 0)
+                return ret;
+        }
+    }
+    if (!s->eac3 || !s->spx_in_use) {
+        s->spx_in_use = 0;
+        for (ch = 1; ch <= fbw_channels; ch++) {
+            s->channel_uses_spx[ch] = 0;
+            s->first_spx_coords[ch] = 1;
+        }
+    }
+
+    /* spectral extension coordinates */
+    if (s->spx_in_use)
+        spx_coordinates(s);
+
+    /* coupling strategy */
+    if (s->eac3 ? s->cpl_strategy_exists[blk] : get_bits1(gbc)) {
+        if ((ret = coupling_strategy(s, blk, bit_alloc_stages)) < 0)
+            return ret;
+    } else if (!s->eac3) {
+        if (!blk) {
+            av_log(s->avctx, AV_LOG_ERROR, "new coupling strategy must "
+                   "be present in block 0\n");
+            return AVERROR_INVALIDDATA;
+        } else {
+            s->cpl_in_use[blk] = s->cpl_in_use[blk-1];
+        }
+    }
+    cpl_in_use = s->cpl_in_use[blk];
+
+    /* coupling coordinates */
+    if (cpl_in_use) {
+        if ((ret = coupling_coordinates(s, blk)) < 0)
+            return ret;
+    }
+
+    /* stereo rematrixing strategy and band structure */
+    if (channel_mode == AC3_CHMODE_STEREO) {
+        if ((s->eac3 && !blk) || get_bits1(gbc)) {
+            s->num_rematrixing_bands = 4;
+            if (cpl_in_use && s->start_freq[CPL_CH] <= 61) {
+                s->num_rematrixing_bands -= 1 + (s->start_freq[CPL_CH] == 37);
+            } else if (s->spx_in_use && s->spx_src_start_freq <= 61) {
+                s->num_rematrixing_bands--;
+            }
+            for (bnd = 0; bnd < s->num_rematrixing_bands; bnd++)
+                s->rematrixing_flags[bnd] = get_bits1(gbc);
+        } else if (!blk) {
+            av_log(s->avctx, AV_LOG_WARNING, "Warning: "
+                   "new rematrixing strategy not present in block 0\n");
+            s->num_rematrixing_bands = 0;
+        }
+    }
+
+    /* exponent strategies for each channel */
+    for (ch = !cpl_in_use; ch <= s->channels; ch++) {
+        if (!s->eac3)
+            s->exp_strategy[blk][ch] = get_bits(gbc, 2 - (ch == s->lfe_ch));
+        if (s->exp_strategy[blk][ch] != EXP_REUSE)
+            bit_alloc_stages[ch] = 3;
+    }
+
+    /* channel bandwidth */
+    for (ch = 1; ch <= fbw_channels; ch++) {
+        s->start_freq[ch] = 0;
+        if (s->exp_strategy[blk][ch] != EXP_REUSE) {
+            int group_size;
+            int prev = s->end_freq[ch];
+            if (s->channel_in_cpl[ch])
+                s->end_freq[ch] = s->start_freq[CPL_CH];
+            else if (s->channel_uses_spx[ch])
+                s->end_freq[ch] = s->spx_src_start_freq;
+            else {
+                int bandwidth_code = get_bits(gbc, 6);
+                if (bandwidth_code > 60) {
+                    av_log(s->avctx, AV_LOG_ERROR, "bandwidth code = %d > 60\n", bandwidth_code);
+                    return AVERROR_INVALIDDATA;
+                }
+                s->end_freq[ch] = bandwidth_code * 3 + 73;
+            }
+            group_size = 3 << (s->exp_strategy[blk][ch] - 1);
+            s->num_exp_groups[ch] = (s->end_freq[ch] + group_size-4) / group_size;
+            if (blk > 0 && s->end_freq[ch] != prev)
+                memset(bit_alloc_stages, 3, AC3_MAX_CHANNELS);
+        }
+    }
+    if (cpl_in_use && s->exp_strategy[blk][CPL_CH] != EXP_REUSE) {
+        s->num_exp_groups[CPL_CH] = (s->end_freq[CPL_CH] - s->start_freq[CPL_CH]) /
+                                    (3 << (s->exp_strategy[blk][CPL_CH] - 1));
+    }
+
+    /* decode exponents for each channel */
+    for (ch = !cpl_in_use; ch <= s->channels; ch++) {
+        if (s->exp_strategy[blk][ch] != EXP_REUSE) {
+            s->dexps[ch][0] = get_bits(gbc, 4) << !ch;
+            if (decode_exponents(s, gbc, s->exp_strategy[blk][ch],
+                                 s->num_exp_groups[ch], s->dexps[ch][0],
+                                 &s->dexps[ch][s->start_freq[ch]+!!ch])) {
+                return AVERROR_INVALIDDATA;
+            }
+            if (ch != CPL_CH && ch != s->lfe_ch)
+                skip_bits(gbc, 2); /* skip gainrng */
+        }
+    }
+
+    /* bit allocation information */
+    if (s->bit_allocation_syntax) {
+        if (get_bits1(gbc)) {
+            s->bit_alloc_params.slow_decay = ff_ac3_slow_decay_tab[get_bits(gbc, 2)] >> s->bit_alloc_params.sr_shift;
+            s->bit_alloc_params.fast_decay = ff_ac3_fast_decay_tab[get_bits(gbc, 2)] >> s->bit_alloc_params.sr_shift;
+            s->bit_alloc_params.slow_gain  = ff_ac3_slow_gain_tab[get_bits(gbc, 2)];
+            s->bit_alloc_params.db_per_bit = ff_ac3_db_per_bit_tab[get_bits(gbc, 2)];
+            s->bit_alloc_params.floor  = ff_ac3_floor_tab[get_bits(gbc, 3)];
+            for (ch = !cpl_in_use; ch <= s->channels; ch++)
+                bit_alloc_stages[ch] = FFMAX(bit_alloc_stages[ch], 2);
+        } else if (!blk) {
+            av_log(s->avctx, AV_LOG_ERROR, "new bit allocation info must "
+                   "be present in block 0\n");
+            return AVERROR_INVALIDDATA;
+        }
+    }
+
+    /* signal-to-noise ratio offsets and fast gains (signal-to-mask ratios) */
+    if (!s->eac3 || !blk) {
+        if (s->snr_offset_strategy && get_bits1(gbc)) {
+            int snr = 0;
+            int csnr;
+            csnr = (get_bits(gbc, 6) - 15) << 4;
+            for (i = ch = !cpl_in_use; ch <= s->channels; ch++) {
+                /* snr offset */
+                if (ch == i || s->snr_offset_strategy == 2)
+                    snr = (csnr + get_bits(gbc, 4)) << 2;
+                /* run at least last bit allocation stage if snr offset changes */
+                if (blk && s->snr_offset[ch] != snr) {
+                    bit_alloc_stages[ch] = FFMAX(bit_alloc_stages[ch], 1);
+                }
+                s->snr_offset[ch] = snr;
+
+                /* fast gain (normal AC-3 only) */
+                if (!s->eac3) {
+                    int prev = s->fast_gain[ch];
+                    s->fast_gain[ch] = ff_ac3_fast_gain_tab[get_bits(gbc, 3)];
+                    /* run last 2 bit allocation stages if fast gain changes */
+                    if (blk && prev != s->fast_gain[ch])
+                        bit_alloc_stages[ch] = FFMAX(bit_alloc_stages[ch], 2);
+                }
+            }
+        } else if (!s->eac3 && !blk) {
+            av_log(s->avctx, AV_LOG_ERROR, "new snr offsets must be present in block 0\n");
+            return AVERROR_INVALIDDATA;
+        }
+    }
+
+    /* fast gain (E-AC-3 only) */
+    if (s->fast_gain_syntax && get_bits1(gbc)) {
+        for (ch = !cpl_in_use; ch <= s->channels; ch++) {
+            int prev = s->fast_gain[ch];
+            s->fast_gain[ch] = ff_ac3_fast_gain_tab[get_bits(gbc, 3)];
+            /* run last 2 bit allocation stages if fast gain changes */
+            if (blk && prev != s->fast_gain[ch])
+                bit_alloc_stages[ch] = FFMAX(bit_alloc_stages[ch], 2);
+        }
+    } else if (s->eac3 && !blk) {
+        for (ch = !cpl_in_use; ch <= s->channels; ch++)
+            s->fast_gain[ch] = ff_ac3_fast_gain_tab[4];
+    }
+
+    /* E-AC-3 to AC-3 converter SNR offset */
+    if (s->frame_type == EAC3_FRAME_TYPE_INDEPENDENT && get_bits1(gbc)) {
+        skip_bits(gbc, 10); // skip converter snr offset
+    }
+
+    /* coupling leak information */
+    if (cpl_in_use) {
+        if (s->first_cpl_leak || get_bits1(gbc)) {
+            int fl = get_bits(gbc, 3);
+            int sl = get_bits(gbc, 3);
+            /* run last 2 bit allocation stages for coupling channel if
+               coupling leak changes */
+            if (blk && (fl != s->bit_alloc_params.cpl_fast_leak ||
+                sl != s->bit_alloc_params.cpl_slow_leak)) {
+                bit_alloc_stages[CPL_CH] = FFMAX(bit_alloc_stages[CPL_CH], 2);
+            }
+            s->bit_alloc_params.cpl_fast_leak = fl;
+            s->bit_alloc_params.cpl_slow_leak = sl;
+        } else if (!s->eac3 && !blk) {
+            av_log(s->avctx, AV_LOG_ERROR, "new coupling leak info must "
+                   "be present in block 0\n");
+            return AVERROR_INVALIDDATA;
+        }
+        s->first_cpl_leak = 0;
+    }
+
+    /* delta bit allocation information */
+    if (s->dba_syntax && get_bits1(gbc)) {
+        /* delta bit allocation exists (strategy) */
+        for (ch = !cpl_in_use; ch <= fbw_channels; ch++) {
+            s->dba_mode[ch] = get_bits(gbc, 2);
+            if (s->dba_mode[ch] == DBA_RESERVED) {
+                av_log(s->avctx, AV_LOG_ERROR, "delta bit allocation strategy reserved\n");
+                return AVERROR_INVALIDDATA;
+            }
+            bit_alloc_stages[ch] = FFMAX(bit_alloc_stages[ch], 2);
+        }
+        /* channel delta offset, len and bit allocation */
+        for (ch = !cpl_in_use; ch <= fbw_channels; ch++) {
+            if (s->dba_mode[ch] == DBA_NEW) {
+                s->dba_nsegs[ch] = get_bits(gbc, 3) + 1;
+                for (seg = 0; seg < s->dba_nsegs[ch]; seg++) {
+                    s->dba_offsets[ch][seg] = get_bits(gbc, 5);
+                    s->dba_lengths[ch][seg] = get_bits(gbc, 4);
+                    s->dba_values[ch][seg]  = get_bits(gbc, 3);
+                }
+                /* run last 2 bit allocation stages if new dba values */
+                bit_alloc_stages[ch] = FFMAX(bit_alloc_stages[ch], 2);
+            }
+        }
+    } else if (blk == 0) {
+        for (ch = 0; ch <= s->channels; ch++) {
+            s->dba_mode[ch] = DBA_NONE;
+        }
+    }
+
+    /* Bit allocation */
+    for (ch = !cpl_in_use; ch <= s->channels; ch++) {
+        if (bit_alloc_stages[ch] > 2) {
+            /* Exponent mapping into PSD and PSD integration */
+            ff_ac3_bit_alloc_calc_psd(s->dexps[ch],
+                                      s->start_freq[ch], s->end_freq[ch],
+                                      s->psd[ch], s->band_psd[ch]);
+        }
+        if (bit_alloc_stages[ch] > 1) {
+            /* Compute excitation function, Compute masking curve, and
+               Apply delta bit allocation */
+            if (ff_ac3_bit_alloc_calc_mask(&s->bit_alloc_params, s->band_psd[ch],
+                                           s->start_freq[ch],  s->end_freq[ch],
+                                           s->fast_gain[ch],   (ch == s->lfe_ch),
+                                           s->dba_mode[ch],    s->dba_nsegs[ch],
+                                           s->dba_offsets[ch], s->dba_lengths[ch],
+                                           s->dba_values[ch],  s->mask[ch])) {
+                av_log(s->avctx, AV_LOG_ERROR, "error in bit allocation\n");
+                return AVERROR_INVALIDDATA;
+            }
+        }
+        if (bit_alloc_stages[ch] > 0) {
+            /* Compute bit allocation */
+            const uint8_t *bap_tab = s->channel_uses_aht[ch] ?
+                                     ff_eac3_hebap_tab : ff_ac3_bap_tab;
+            s->ac3dsp.bit_alloc_calc_bap(s->mask[ch], s->psd[ch],
+                                      s->start_freq[ch], s->end_freq[ch],
+                                      s->snr_offset[ch],
+                                      s->bit_alloc_params.floor,
+                                      bap_tab, s->bap[ch]);
+        }
+    }
+
+    /* unused dummy data */
+    if (s->skip_syntax && get_bits1(gbc)) {
+        int skipl = get_bits(gbc, 9);
+        skip_bits_long(gbc, 8 * skipl);
+    }
+
+    /* unpack the transform coefficients
+       this also uncouples channels if coupling is in use. */
+    decode_transform_coeffs(s, blk);
+
+    /* TODO: generate enhanced coupling coordinates and uncouple */
+
+    /* recover coefficients if rematrixing is in use */
+    if (s->channel_mode == AC3_CHMODE_STEREO)
+        do_rematrixing(s);
+
+    /* apply scaling to coefficients (headroom, dynrng) */
+    for (ch = 1; ch <= s->channels; ch++) {
+        int audio_channel = 0;
+        INTFLOAT gain;
+        if (s->channel_mode == AC3_CHMODE_DUALMONO && ch <= 2)
+            audio_channel = 2-ch;
+        if (s->heavy_compression && s->compression_exists[audio_channel])
+            gain = s->heavy_dynamic_range[audio_channel];
+        else
+            gain = s->dynamic_range[audio_channel];
+
+#if USE_FIXED
+        scale_coefs(s->transform_coeffs[ch], s->fixed_coeffs[ch], gain, 256);
+#else
+        if (s->target_level != 0)
+          gain = gain * s->level_gain[audio_channel];
+        gain *= 1.0 / 4194304.0f;
+        s->fmt_conv.int32_to_float_fmul_scalar(s->transform_coeffs[ch],
+                                               s->fixed_coeffs[ch], gain, 256);
+#endif
+    }
+
+    /* apply spectral extension to high frequency bins */
+    if (CONFIG_EAC3_DECODER && s->spx_in_use) {
+        ff_eac3_apply_spectral_extension(s);
+    }
+
+    /* downmix and MDCT. order depends on whether block switching is used for
+       any channel in this block. this is because coefficients for the long
+       and short transforms cannot be mixed. */
+    downmix_output = s->channels != s->out_channels &&
+                     !((s->output_mode & AC3_OUTPUT_LFEON) &&
+                     s->fbw_channels == s->out_channels);
+    if (different_transforms) {
+        /* the delay samples have already been downmixed, so we upmix the delay
+           samples in order to reconstruct all channels before downmixing. */
+        if (s->downmixed) {
+            s->downmixed = 0;
+            ac3_upmix_delay(s);
+        }
+
+        do_imdct(s, s->channels, offset);
+
+        if (downmix_output) {
+#if USE_FIXED
+            ac3_downmix_c_fixed16(s->outptr, s->downmix_coeffs,
+                              s->out_channels, s->fbw_channels, 256);
+#else
+            ff_ac3dsp_downmix(&s->ac3dsp, s->outptr, s->downmix_coeffs,
+                              s->out_channels, s->fbw_channels, 256);
+#endif
+        }
+    } else {
+        if (downmix_output) {
+            AC3_RENAME(ff_ac3dsp_downmix)(&s->ac3dsp, s->xcfptr + 1, s->downmix_coeffs,
+                                          s->out_channels, s->fbw_channels, 256);
+        }
+
+        if (downmix_output && !s->downmixed) {
+            s->downmixed = 1;
+            AC3_RENAME(ff_ac3dsp_downmix)(&s->ac3dsp, s->dlyptr, s->downmix_coeffs,
+                                          s->out_channels, s->fbw_channels, 128);
+        }
+
+        do_imdct(s, s->out_channels, offset);
+    }
+
+    return 0;
+}
+
+/**
+ * Decode a single AC-3 frame.
+ */
+static int ac3_decode_frame(AVCodecContext * avctx, void *data,
+                            int *got_frame_ptr, AVPacket *avpkt)
+{
+    AVFrame *frame     = data;
+    const uint8_t *buf = avpkt->data;
+    int buf_size, full_buf_size = avpkt->size;
+    AC3DecodeContext *s = avctx->priv_data;
+    int blk, ch, err, offset, ret;
+    int i;
+    int skip = 0, got_independent_frame = 0;
+    const uint8_t *channel_map;
+    uint8_t extended_channel_map[EAC3_MAX_CHANNELS];
+    const SHORTFLOAT *output[AC3_MAX_CHANNELS];
+    enum AVMatrixEncoding matrix_encoding;
+    AVDownmixInfo *downmix_info;
+
+    s->superframe_size = 0;
+
+    buf_size = full_buf_size;
+    for (i = 1; i < buf_size; i += 2) {
+        if (buf[i] == 0x77 || buf[i] == 0x0B) {
+            if ((buf[i] ^ buf[i-1]) == (0x77 ^ 0x0B)) {
+                i--;
+                break;
+            } else if ((buf[i] ^ buf[i+1]) == (0x77 ^ 0x0B)) {
+                break;
+            }
+        }
+    }
+    if (i >= buf_size)
+        return AVERROR_INVALIDDATA;
+    if (i > 10)
+        return i;
+    buf += i;
+    buf_size -= i;
+
+    /* copy input buffer to decoder context to avoid reading past the end
+       of the buffer, which can be caused by a damaged input stream. */
+    if (buf_size >= 2 && AV_RB16(buf) == 0x770B) {
+        // seems to be byte-swapped AC-3
+        int cnt = FFMIN(buf_size, AC3_FRAME_BUFFER_SIZE) >> 1;
+        s->bdsp.bswap16_buf((uint16_t *) s->input_buffer,
+                            (const uint16_t *) buf, cnt);
+    } else
+        memcpy(s->input_buffer, buf, FFMIN(buf_size, AC3_FRAME_BUFFER_SIZE));
+
+    /* if consistent noise generation is enabled, seed the linear feedback generator
+     * with the contents of the AC-3 frame so that the noise is identical across
+     * decodes given the same AC-3 frame data, for use with non-linear edititing software. */
+    if (s->consistent_noise_generation)
+        av_lfg_init_from_data(&s->dith_state, s->input_buffer, FFMIN(buf_size, AC3_FRAME_BUFFER_SIZE));
+
+    buf = s->input_buffer;
+dependent_frame:
+    /* initialize the GetBitContext with the start of valid AC-3 Frame */
+    if ((ret = init_get_bits8(&s->gbc, buf, buf_size)) < 0)
+        return ret;
+
+    /* parse the syncinfo */
+    err = parse_frame_header(s);
+
+    if (err) {
+        switch (err) {
+        case AAC_AC3_PARSE_ERROR_SYNC:
+            av_log(avctx, AV_LOG_ERROR, "frame sync error\n");
+            return AVERROR_INVALIDDATA;
+        case AAC_AC3_PARSE_ERROR_BSID:
+            av_log(avctx, AV_LOG_ERROR, "invalid bitstream id\n");
+            break;
+        case AAC_AC3_PARSE_ERROR_SAMPLE_RATE:
+            av_log(avctx, AV_LOG_ERROR, "invalid sample rate\n");
+            break;
+        case AAC_AC3_PARSE_ERROR_FRAME_SIZE:
+            av_log(avctx, AV_LOG_ERROR, "invalid frame size\n");
+            break;
+        case AAC_AC3_PARSE_ERROR_FRAME_TYPE:
+            /* skip frame if CRC is ok. otherwise use error concealment. */
+            /* TODO: add support for substreams */
+            if (s->substreamid) {
+                av_log(avctx, AV_LOG_DEBUG,
+                       "unsupported substream %d: skipping frame\n",
+                       s->substreamid);
+                *got_frame_ptr = 0;
+                return buf_size;
+            } else {
+                av_log(avctx, AV_LOG_ERROR, "invalid frame type\n");
+            }
+            break;
+        case AAC_AC3_PARSE_ERROR_CRC:
+        case AAC_AC3_PARSE_ERROR_CHANNEL_CFG:
+            break;
+        default: // Normal AVERROR do not try to recover.
+            *got_frame_ptr = 0;
+            return err;
+        }
+    } else {
+        /* check that reported frame size fits in input buffer */
+        if (s->frame_size > buf_size) {
+            av_log(avctx, AV_LOG_ERROR, "incomplete frame\n");
+            err = AAC_AC3_PARSE_ERROR_FRAME_SIZE;
+        } else if (avctx->err_recognition & (AV_EF_CRCCHECK|AV_EF_CAREFUL)) {
+            /* check for crc mismatch */
+            if (av_crc(av_crc_get_table(AV_CRC_16_ANSI), 0, &buf[2],
+                       s->frame_size - 2)) {
+                av_log(avctx, AV_LOG_ERROR, "frame CRC mismatch\n");
+                if (avctx->err_recognition & AV_EF_EXPLODE)
+                    return AVERROR_INVALIDDATA;
+                err = AAC_AC3_PARSE_ERROR_CRC;
+            }
+        }
+    }
+
+    if (s->frame_type == EAC3_FRAME_TYPE_DEPENDENT && !got_independent_frame) {
+        av_log(avctx, AV_LOG_WARNING, "Ignoring dependent frame without independent frame.\n");
+        *got_frame_ptr = 0;
+        return FFMIN(full_buf_size, s->frame_size);
+    }
+
+    /* channel config */
+    if (!err || (s->channels && s->out_channels != s->channels)) {
+        s->out_channels = s->channels;
+        s->output_mode  = s->channel_mode;
+        if (s->lfe_on)
+            s->output_mode |= AC3_OUTPUT_LFEON;
+        if (s->channels > 1 &&
+            avctx->request_channel_layout == AV_CH_LAYOUT_MONO) {
+            s->out_channels = 1;
+            s->output_mode  = AC3_CHMODE_MONO;
+        } else if (s->channels > 2 &&
+                   avctx->request_channel_layout == AV_CH_LAYOUT_STEREO) {
+            s->out_channels = 2;
+            s->output_mode  = AC3_CHMODE_STEREO;
+        }
+
+        s->loro_center_mix_level   = gain_levels[s->  center_mix_level];
+        s->loro_surround_mix_level = gain_levels[s->surround_mix_level];
+        s->ltrt_center_mix_level   = LEVEL_MINUS_3DB;
+        s->ltrt_surround_mix_level = LEVEL_MINUS_3DB;
+        /* set downmixing coefficients if needed */
+        if (s->channels != s->out_channels && !((s->output_mode & AC3_OUTPUT_LFEON) &&
+                s->fbw_channels == s->out_channels)) {
+            if ((ret = set_downmix_coeffs(s)) < 0) {
+                av_log(avctx, AV_LOG_ERROR, "error setting downmix coeffs\n");
+                return ret;
+            }
+        }
+    } else if (!s->channels) {
+        av_log(avctx, AV_LOG_ERROR, "unable to determine channel mode\n");
+        return AVERROR_INVALIDDATA;
+    }
+    avctx->channels = s->out_channels;
+    avctx->channel_layout = avpriv_ac3_channel_layout_tab[s->output_mode & ~AC3_OUTPUT_LFEON];
+    if (s->output_mode & AC3_OUTPUT_LFEON)
+        avctx->channel_layout |= AV_CH_LOW_FREQUENCY;
+
+    /* set audio service type based on bitstream mode for AC-3 */
+    avctx->audio_service_type = s->bitstream_mode;
+    if (s->bitstream_mode == 0x7 && s->channels > 1)
+        avctx->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
+
+    /* decode the audio blocks */
+    channel_map = ff_ac3_dec_channel_map[s->output_mode & ~AC3_OUTPUT_LFEON][s->lfe_on];
+    offset = s->frame_type == EAC3_FRAME_TYPE_DEPENDENT ? AC3_MAX_CHANNELS : 0;
+    for (ch = 0; ch < AC3_MAX_CHANNELS; ch++) {
+        output[ch] = s->output[ch + offset];
+        s->outptr[ch] = s->output[ch + offset];
+    }
+    for (ch = 0; ch < s->channels; ch++) {
+        if (ch < s->out_channels)
+            s->outptr[channel_map[ch]] = s->output_buffer[ch + offset];
+    }
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        if (!err && decode_audio_block(s, blk, offset)) {
+            av_log(avctx, AV_LOG_ERROR, "error decoding the audio block\n");
+            err = 1;
+        }
+        if (err)
+            for (ch = 0; ch < s->out_channels; ch++)
+                memcpy(s->output_buffer[ch + offset] + AC3_BLOCK_SIZE*blk, output[ch], AC3_BLOCK_SIZE*sizeof(SHORTFLOAT));
+        for (ch = 0; ch < s->out_channels; ch++)
+            output[ch] = s->outptr[channel_map[ch]];
+        for (ch = 0; ch < s->out_channels; ch++) {
+            if (!ch || channel_map[ch])
+                s->outptr[channel_map[ch]] += AC3_BLOCK_SIZE;
+        }
+    }
+
+    /* keep last block for error concealment in next frame */
+    for (ch = 0; ch < s->out_channels; ch++)
+        memcpy(s->output[ch + offset], output[ch], AC3_BLOCK_SIZE*sizeof(SHORTFLOAT));
+
+    /* check if there is dependent frame */
+    if (buf_size > s->frame_size) {
+        AC3HeaderInfo hdr;
+        int err;
+
+        if (buf_size - s->frame_size <= 16) {
+            skip = buf_size - s->frame_size;
+            goto skip;
+        }
+
+        if ((ret = init_get_bits8(&s->gbc, buf + s->frame_size, buf_size - s->frame_size)) < 0)
+            return ret;
+
+        err = ff_ac3_parse_header(&s->gbc, &hdr);
+        if (err)
+            return err;
+
+        if (hdr.frame_type == EAC3_FRAME_TYPE_DEPENDENT) {
+            if (hdr.num_blocks != s->num_blocks || s->sample_rate != hdr.sample_rate) {
+                av_log(avctx, AV_LOG_WARNING, "Ignoring non-compatible dependent frame.\n");
+            } else {
+                buf += s->frame_size;
+                buf_size -= s->frame_size;
+                s->prev_output_mode = s->output_mode;
+                s->prev_bit_rate = s->bit_rate;
+                got_independent_frame = 1;
+                goto dependent_frame;
+            }
+        }
+    }
+skip:
+
+    frame->decode_error_flags = err ? FF_DECODE_ERROR_INVALID_BITSTREAM : 0;
+
+    /* if frame is ok, set audio parameters */
+    if (!err) {
+        avctx->sample_rate = s->sample_rate;
+        avctx->bit_rate    = s->bit_rate + s->prev_bit_rate;
+    }
+
+    for (ch = 0; ch < EAC3_MAX_CHANNELS; ch++)
+        extended_channel_map[ch] = ch;
+
+    if (s->frame_type == EAC3_FRAME_TYPE_DEPENDENT) {
+        uint64_t ich_layout = avpriv_ac3_channel_layout_tab[s->prev_output_mode & ~AC3_OUTPUT_LFEON];
+        int channel_map_size = ff_ac3_channels_tab[s->output_mode & ~AC3_OUTPUT_LFEON] + s->lfe_on;
+        uint64_t channel_layout;
+        int extend = 0;
+
+        if (s->prev_output_mode & AC3_OUTPUT_LFEON)
+            ich_layout |= AV_CH_LOW_FREQUENCY;
+
+        channel_layout = ich_layout;
+        for (ch = 0; ch < 16; ch++) {
+            if (s->channel_map & (1 << (EAC3_MAX_CHANNELS - ch - 1))) {
+                channel_layout |= ff_eac3_custom_channel_map_locations[ch][1];
+            }
+        }
+        if (av_get_channel_layout_nb_channels(channel_layout) > EAC3_MAX_CHANNELS) {
+            av_log(avctx, AV_LOG_ERROR, "Too many channels (%d) coded\n",
+                   av_get_channel_layout_nb_channels(channel_layout));
+            return AVERROR_INVALIDDATA;
+        }
+
+        avctx->channel_layout = channel_layout;
+        avctx->channels = av_get_channel_layout_nb_channels(channel_layout);
+
+        for (ch = 0; ch < EAC3_MAX_CHANNELS; ch++) {
+            if (s->channel_map & (1 << (EAC3_MAX_CHANNELS - ch - 1))) {
+                if (ff_eac3_custom_channel_map_locations[ch][0]) {
+                    int index = av_get_channel_layout_channel_index(channel_layout,
+                                                                    ff_eac3_custom_channel_map_locations[ch][1]);
+                    if (index < 0)
+                        return AVERROR_INVALIDDATA;
+                    if (extend >= channel_map_size)
+                        return AVERROR_INVALIDDATA;
+
+                    extended_channel_map[index] = offset + channel_map[extend++];
+                } else {
+                    int i;
+
+                    for (i = 0; i < 64; i++) {
+                        if ((1ULL << i) & ff_eac3_custom_channel_map_locations[ch][1]) {
+                            int index = av_get_channel_layout_channel_index(channel_layout,
+                                                                            1ULL << i);
+                            if (index < 0)
+                                return AVERROR_INVALIDDATA;
+                            if (extend >= channel_map_size)
+                                return AVERROR_INVALIDDATA;
+
+                            extended_channel_map[index] = offset + channel_map[extend++];
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    /* get output buffer */
+    frame->nb_samples = s->num_blocks * AC3_BLOCK_SIZE;
+    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
+        return ret;
+
+    for (ch = 0; ch < avctx->channels; ch++) {
+        int map = extended_channel_map[ch];
+        av_assert0(ch>=AV_NUM_DATA_POINTERS || frame->extended_data[ch] == frame->data[ch]);
+        memcpy((SHORTFLOAT *)frame->extended_data[ch],
+               s->output_buffer[map],
+               s->num_blocks * AC3_BLOCK_SIZE * sizeof(SHORTFLOAT));
+    }
+
+    /*
+     * AVMatrixEncoding
+     *
+     * Check whether the input layout is compatible, and make sure we're not
+     * downmixing (else the matrix encoding is no longer applicable).
+     */
+    matrix_encoding = AV_MATRIX_ENCODING_NONE;
+    if (s->channel_mode == AC3_CHMODE_STEREO &&
+        s->channel_mode == (s->output_mode & ~AC3_OUTPUT_LFEON)) {
+        if (s->dolby_surround_mode == AC3_DSURMOD_ON)
+            matrix_encoding = AV_MATRIX_ENCODING_DOLBY;
+        else if (s->dolby_headphone_mode == AC3_DHEADPHONMOD_ON)
+            matrix_encoding = AV_MATRIX_ENCODING_DOLBYHEADPHONE;
+    } else if (s->channel_mode >= AC3_CHMODE_2F2R &&
+               s->channel_mode == (s->output_mode & ~AC3_OUTPUT_LFEON)) {
+        switch (s->dolby_surround_ex_mode) {
+        case AC3_DSUREXMOD_ON: // EX or PLIIx
+            matrix_encoding = AV_MATRIX_ENCODING_DOLBYEX;
+            break;
+        case AC3_DSUREXMOD_PLIIZ:
+            matrix_encoding = AV_MATRIX_ENCODING_DPLIIZ;
+            break;
+        default: // not indicated or off
+            break;
+        }
+    }
+    if ((ret = ff_side_data_update_matrix_encoding(frame, matrix_encoding)) < 0)
+        return ret;
+
+    /* AVDownmixInfo */
+    if ((downmix_info = av_downmix_info_update_side_data(frame))) {
+        switch (s->preferred_downmix) {
+        case AC3_DMIXMOD_LTRT:
+            downmix_info->preferred_downmix_type = AV_DOWNMIX_TYPE_LTRT;
+            break;
+        case AC3_DMIXMOD_LORO:
+            downmix_info->preferred_downmix_type = AV_DOWNMIX_TYPE_LORO;
+            break;
+        case AC3_DMIXMOD_DPLII:
+            downmix_info->preferred_downmix_type = AV_DOWNMIX_TYPE_DPLII;
+            break;
+        default:
+            downmix_info->preferred_downmix_type = AV_DOWNMIX_TYPE_UNKNOWN;
+            break;
+        }
+        downmix_info->center_mix_level        = gain_levels[s->       center_mix_level];
+        downmix_info->center_mix_level_ltrt   = gain_levels[s->  center_mix_level_ltrt];
+        downmix_info->surround_mix_level      = gain_levels[s->     surround_mix_level];
+        downmix_info->surround_mix_level_ltrt = gain_levels[s->surround_mix_level_ltrt];
+        if (s->lfe_mix_level_exists)
+            downmix_info->lfe_mix_level       = gain_levels_lfe[s->lfe_mix_level];
+        else
+            downmix_info->lfe_mix_level       = 0.0; // -inf dB
+    } else
+        return AVERROR(ENOMEM);
+
+    *got_frame_ptr = 1;
+
+    if (!s->superframe_size)
+        return FFMIN(full_buf_size, s->frame_size + skip);
+
+    return FFMIN(full_buf_size, s->superframe_size + skip);
+}
+
+/**
+ * Uninitialize the AC-3 decoder.
+ */
+static av_cold int ac3_decode_end(AVCodecContext *avctx)
+{
+    AC3DecodeContext *s = avctx->priv_data;
+    ff_mdct_end(&s->imdct_512);
+    ff_mdct_end(&s->imdct_256);
+    av_freep(&s->fdsp);
+    av_freep(&s->downmix_coeffs[0]);
+
+    return 0;
+}
+
+#define OFFSET(x) offsetof(AC3DecodeContext, x)
+#define PAR (AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM)
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec.h
new file mode 100644
index 000000000..ce1434b55
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec.h
@@ -0,0 +1,277 @@
+/*
+ * Common code between the AC-3 and E-AC-3 decoders
+ * Copyright (c) 2007 Bartlomiej Wolowiec <bartek.wolowiec@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Common code between the AC-3 and E-AC-3 decoders.
+ *
+ * Summary of MDCT Coefficient Grouping:
+ * The individual MDCT coefficient indices are often referred to in the
+ * (E-)AC-3 specification as frequency bins.  These bins are grouped together
+ * into subbands of 12 coefficients each.  The subbands are grouped together
+ * into bands as defined in the bitstream by the band structures, which
+ * determine the number of bands and the size of each band.  The full spectrum
+ * of 256 frequency bins is divided into 1 DC bin + 21 subbands = 253 bins.
+ * This system of grouping coefficients is used for channel bandwidth, stereo
+ * rematrixing, channel coupling, enhanced coupling, and spectral extension.
+ *
+ * +-+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+-+
+ * |1|  |12|  |  [12|12|12|12]  |  |  |  |  |  |  |  |  |  |  |  |  |3|
+ * +-+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+-+
+ * ~~~  ~~~~     ~~~~~~~~~~~~~                                      ~~~
+ *  |     |            |                                             |
+ *  |     |            |                    3 unused frequency bins--+
+ *  |     |            |
+ *  |     |            +--1 band containing 4 subbands
+ *  |     |
+ *  |     +--1 subband of 12 frequency bins
+ *  |
+ *  +--DC frequency bin
+ */
+
+#ifndef AVCODEC_AC3DEC_H
+#define AVCODEC_AC3DEC_H
+
+#include "libavutil/float_dsp.h"
+#include "libavutil/fixed_dsp.h"
+#include "libavutil/lfg.h"
+#include "ac3.h"
+#include "ac3dsp.h"
+#include "bswapdsp.h"
+#include "get_bits.h"
+#include "fft.h"
+#include "fmtconvert.h"
+
+#define AC3_OUTPUT_LFEON  8
+
+#define SPX_MAX_BANDS    17
+
+/** Large enough for maximum possible frame size when the specification limit is ignored */
+#define AC3_FRAME_BUFFER_SIZE 32768
+
+typedef struct AC3DecodeContext {
+    AVClass        *class;                  ///< class for AVOptions
+    AVCodecContext *avctx;                  ///< parent context
+    GetBitContext gbc;                      ///< bitstream reader
+
+///@name Bit stream information
+///@{
+    int frame_type;                         ///< frame type                             (strmtyp)
+    int substreamid;                        ///< substream identification
+    int superframe_size;                    ///< current superframe size, in bytes
+    int frame_size;                         ///< current frame size, in bytes
+    int bit_rate;                           ///< stream bit rate, in bits-per-second
+    int sample_rate;                        ///< sample frequency, in Hz
+    int num_blocks;                         ///< number of audio blocks
+    int bitstream_id;                       ///< bitstream id                           (bsid)
+    int bitstream_mode;                     ///< bitstream mode                         (bsmod)
+    int channel_mode;                       ///< channel mode                           (acmod)
+    int lfe_on;                             ///< lfe channel in use
+    int dialog_normalization[2];            ///< dialog level in dBFS                   (dialnorm)
+    int compression_exists[2];              ///< compression field is valid for frame   (compre)
+    int compression_gain[2];                ///< gain to apply for heavy compression    (compr)
+    int channel_map;                        ///< custom channel map                     (chanmap)
+    int preferred_downmix;                  ///< Preferred 2-channel downmix mode       (dmixmod)
+    int center_mix_level;                   ///< Center mix level index
+    int center_mix_level_ltrt;              ///< Center mix level index for Lt/Rt       (ltrtcmixlev)
+    int surround_mix_level;                 ///< Surround mix level index
+    int surround_mix_level_ltrt;            ///< Surround mix level index for Lt/Rt     (ltrtsurmixlev)
+    int lfe_mix_level_exists;               ///< indicates if lfemixlevcod is specified (lfemixlevcode)
+    int lfe_mix_level;                      ///< LFE mix level index                    (lfemixlevcod)
+    int eac3;                               ///< indicates if current frame is E-AC-3
+    int eac3_frame_dependent_found;         ///< bitstream has E-AC-3 dependent frame(s)
+    int eac3_subsbtreamid_found;            ///< bitstream has E-AC-3 additional substream(s)
+    int dolby_surround_mode;                ///< dolby surround mode                    (dsurmod)
+    int dolby_surround_ex_mode;             ///< dolby surround ex mode                 (dsurexmod)
+    int dolby_headphone_mode;               ///< dolby headphone mode                   (dheadphonmod)
+///@}
+
+    int preferred_stereo_downmix;
+    float ltrt_center_mix_level;
+    float ltrt_surround_mix_level;
+    float loro_center_mix_level;
+    float loro_surround_mix_level;
+    int target_level;                       ///< target level in dBFS
+    float level_gain[2];
+
+///@name Frame syntax parameters
+    int snr_offset_strategy;                ///< SNR offset strategy                    (snroffststr)
+    int block_switch_syntax;                ///< block switch syntax enabled            (blkswe)
+    int dither_flag_syntax;                 ///< dither flag syntax enabled             (dithflage)
+    int bit_allocation_syntax;              ///< bit allocation model syntax enabled    (bamode)
+    int fast_gain_syntax;                   ///< fast gain codes enabled                (frmfgaincode)
+    int dba_syntax;                         ///< delta bit allocation syntax enabled    (dbaflde)
+    int skip_syntax;                        ///< skip field syntax enabled              (skipflde)
+ ///@}
+
+///@name Standard coupling
+    int cpl_in_use[AC3_MAX_BLOCKS];         ///< coupling in use                        (cplinu)
+    int cpl_strategy_exists[AC3_MAX_BLOCKS];///< coupling strategy exists               (cplstre)
+    int channel_in_cpl[AC3_MAX_CHANNELS];   ///< channel in coupling                    (chincpl)
+    int phase_flags_in_use;                 ///< phase flags in use                     (phsflginu)
+    int phase_flags[AC3_MAX_CPL_BANDS];     ///< phase flags                            (phsflg)
+    int num_cpl_bands;                      ///< number of coupling bands               (ncplbnd)
+    uint8_t cpl_band_struct[AC3_MAX_CPL_BANDS];
+    uint8_t cpl_band_sizes[AC3_MAX_CPL_BANDS]; ///< number of coeffs in each coupling band
+    int firstchincpl;                       ///< first channel in coupling
+    int first_cpl_coords[AC3_MAX_CHANNELS]; ///< first coupling coordinates states      (firstcplcos)
+    int cpl_coords[AC3_MAX_CHANNELS][AC3_MAX_CPL_BANDS]; ///< coupling coordinates      (cplco)
+///@}
+
+///@name Spectral extension
+///@{
+    int spx_in_use;                             ///< spectral extension in use              (spxinu)
+    uint8_t channel_uses_spx[AC3_MAX_CHANNELS]; ///< channel uses spectral extension        (chinspx)
+    int8_t spx_atten_code[AC3_MAX_CHANNELS];    ///< spx attenuation code                   (spxattencod)
+    int spx_src_start_freq;                     ///< spx start frequency bin
+    int spx_dst_end_freq;                       ///< spx end frequency bin
+    int spx_dst_start_freq;                     ///< spx starting frequency bin for copying (copystartmant)
+                                                ///< the copy region ends at the start of the spx region.
+    int num_spx_bands;                          ///< number of spx bands                    (nspxbnds)
+    uint8_t spx_band_struct[SPX_MAX_BANDS];
+    uint8_t spx_band_sizes[SPX_MAX_BANDS];      ///< number of bins in each spx band
+    uint8_t first_spx_coords[AC3_MAX_CHANNELS]; ///< first spx coordinates states           (firstspxcos)
+    INTFLOAT spx_noise_blend[AC3_MAX_CHANNELS][SPX_MAX_BANDS]; ///< spx noise blending factor  (nblendfact)
+    INTFLOAT spx_signal_blend[AC3_MAX_CHANNELS][SPX_MAX_BANDS];///< spx signal blending factor (sblendfact)
+///@}
+
+///@name Adaptive hybrid transform
+    int channel_uses_aht[AC3_MAX_CHANNELS];                         ///< channel AHT in use (chahtinu)
+    int pre_mantissa[AC3_MAX_CHANNELS][AC3_MAX_COEFS][AC3_MAX_BLOCKS];  ///< pre-IDCT mantissas
+///@}
+
+///@name Channel
+    int fbw_channels;                           ///< number of full-bandwidth channels
+    int channels;                               ///< number of total channels
+    int lfe_ch;                                 ///< index of LFE channel
+    SHORTFLOAT *downmix_coeffs[2];              ///< stereo downmix coefficients
+    int downmixed;                              ///< indicates if coeffs are currently downmixed
+    int output_mode;                            ///< output channel configuration
+    int prev_output_mode;                       ///< output channel configuration for previous frame
+    int out_channels;                           ///< number of output channels
+    int prev_bit_rate;                          ///< stream bit rate, in bits-per-second for previous frame
+///@}
+
+///@name Dynamic range
+    INTFLOAT dynamic_range[2];                 ///< dynamic range
+    INTFLOAT drc_scale;                        ///< percentage of dynamic range compression to be applied
+    int heavy_compression;                     ///< apply heavy compression
+    INTFLOAT heavy_dynamic_range[2];           ///< heavy dynamic range compression
+///@}
+
+///@name Bandwidth
+    int start_freq[AC3_MAX_CHANNELS];       ///< start frequency bin                    (strtmant)
+    int end_freq[AC3_MAX_CHANNELS];         ///< end frequency bin                      (endmant)
+///@}
+
+///@name Consistent noise generation
+    int consistent_noise_generation;        ///< seed noise generation with AC-3 frame on decode
+///@}
+
+///@name Rematrixing
+    int num_rematrixing_bands;              ///< number of rematrixing bands            (nrematbnd)
+    int rematrixing_flags[4];               ///< rematrixing flags                      (rematflg)
+///@}
+
+///@name Exponents
+    int num_exp_groups[AC3_MAX_CHANNELS];           ///< Number of exponent groups      (nexpgrp)
+    int8_t dexps[AC3_MAX_CHANNELS][AC3_MAX_COEFS];  ///< decoded exponents
+    int exp_strategy[AC3_MAX_BLOCKS][AC3_MAX_CHANNELS]; ///< exponent strategies        (expstr)
+///@}
+
+///@name Bit allocation
+    AC3BitAllocParameters bit_alloc_params;         ///< bit allocation parameters
+    int first_cpl_leak;                             ///< first coupling leak state      (firstcplleak)
+    int snr_offset[AC3_MAX_CHANNELS];               ///< signal-to-noise ratio offsets  (snroffst)
+    int fast_gain[AC3_MAX_CHANNELS];                ///< fast gain values/SMR's         (fgain)
+    uint8_t bap[AC3_MAX_CHANNELS][AC3_MAX_COEFS];   ///< bit allocation pointers
+    int16_t psd[AC3_MAX_CHANNELS][AC3_MAX_COEFS];   ///< scaled exponents
+    int16_t band_psd[AC3_MAX_CHANNELS][AC3_CRITICAL_BANDS]; ///< interpolated exponents
+    int16_t mask[AC3_MAX_CHANNELS][AC3_CRITICAL_BANDS];     ///< masking curve values
+    int dba_mode[AC3_MAX_CHANNELS];                 ///< delta bit allocation mode
+    int dba_nsegs[AC3_MAX_CHANNELS];                ///< number of delta segments
+    uint8_t dba_offsets[AC3_MAX_CHANNELS][8];       ///< delta segment offsets
+    uint8_t dba_lengths[AC3_MAX_CHANNELS][8];       ///< delta segment lengths
+    uint8_t dba_values[AC3_MAX_CHANNELS][8];        ///< delta values for each segment
+///@}
+
+///@name Zero-mantissa dithering
+    int dither_flag[AC3_MAX_CHANNELS];      ///< dither flags                           (dithflg)
+    AVLFG dith_state;                       ///< for dither generation
+///@}
+
+///@name IMDCT
+    int block_switch[AC3_MAX_CHANNELS];     ///< block switch flags                     (blksw)
+    FFTContext imdct_512;                   ///< for 512 sample IMDCT
+    FFTContext imdct_256;                   ///< for 256 sample IMDCT
+///@}
+
+///@name Optimization
+    BswapDSPContext bdsp;
+#if USE_FIXED
+    AVFixedDSPContext *fdsp;
+#else
+    AVFloatDSPContext *fdsp;
+#endif
+    AC3DSPContext ac3dsp;
+    FmtConvertContext fmt_conv;             ///< optimized conversion functions
+///@}
+
+    SHORTFLOAT *outptr[AC3_MAX_CHANNELS];
+    INTFLOAT *xcfptr[AC3_MAX_CHANNELS];
+    INTFLOAT *dlyptr[AC3_MAX_CHANNELS];
+
+///@name Aligned arrays
+    DECLARE_ALIGNED(16, int,   fixed_coeffs)[AC3_MAX_CHANNELS][AC3_MAX_COEFS];       ///< fixed-point transform coefficients
+    DECLARE_ALIGNED(32, INTFLOAT, transform_coeffs)[AC3_MAX_CHANNELS][AC3_MAX_COEFS];   ///< transform coefficients
+    DECLARE_ALIGNED(32, INTFLOAT, delay)[EAC3_MAX_CHANNELS][AC3_BLOCK_SIZE];         ///< delay - added to the next block
+    DECLARE_ALIGNED(32, INTFLOAT, window)[AC3_BLOCK_SIZE];                              ///< window coefficients
+    DECLARE_ALIGNED(32, INTFLOAT, tmp_output)[AC3_BLOCK_SIZE];                          ///< temporary storage for output before windowing
+    DECLARE_ALIGNED(32, SHORTFLOAT, output)[EAC3_MAX_CHANNELS][AC3_BLOCK_SIZE];            ///< output after imdct transform and windowing
+    DECLARE_ALIGNED(32, uint8_t, input_buffer)[AC3_FRAME_BUFFER_SIZE + AV_INPUT_BUFFER_PADDING_SIZE]; ///< temp buffer to prevent overread
+    DECLARE_ALIGNED(32, SHORTFLOAT, output_buffer)[EAC3_MAX_CHANNELS][AC3_BLOCK_SIZE * 6];  ///< final output buffer
+///@}
+} AC3DecodeContext;
+
+/**
+ * Parse the E-AC-3 frame header.
+ * This parses both the bit stream info and audio frame header.
+ */
+static int ff_eac3_parse_header(AC3DecodeContext *s);
+
+/**
+ * Decode mantissas in a single channel for the entire frame.
+ * This is used when AHT mode is enabled.
+ */
+static void ff_eac3_decode_transform_coeffs_aht_ch(AC3DecodeContext *s, int ch);
+
+/**
+ * Apply spectral extension to each channel by copying lower frequency
+ * coefficients to higher frequency bins and applying side information to
+ * approximate the original high frequency signal.
+ */
+static void ff_eac3_apply_spectral_extension(AC3DecodeContext *s);
+
+#if (!USE_FIXED)
+extern float ff_ac3_heavy_dynamic_range_tab[256];
+#endif
+
+#endif /* AVCODEC_AC3DEC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec_data.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec_data.c
new file mode 100644
index 000000000..d0a9b1ec4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec_data.c
@@ -0,0 +1,60 @@
+/*
+ * AC-3 and E-AC-3 decoder tables
+ * Copyright (c) 2007 Bartlomiej Wolowiec <bartek.wolowiec@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Tables taken directly from the AC-3 spec.
+ */
+
+#include "ac3dec_data.h"
+#include "ac3.h"
+
+/**
+ * Table used to ungroup 3 values stored in 5 bits.
+ * Used by bap=1 mantissas and GAQ.
+ * ff_ac3_ungroup_3_in_5_bits_tab[i] = { i/9, (i%9)/3, (i%9)%3 }
+ */
+const uint8_t ff_ac3_ungroup_3_in_5_bits_tab[32][3] = {
+    { 0, 0, 0 }, { 0, 0, 1 }, { 0, 0, 2 }, { 0, 1, 0 },
+    { 0, 1, 1 }, { 0, 1, 2 }, { 0, 2, 0 }, { 0, 2, 1 },
+    { 0, 2, 2 }, { 1, 0, 0 }, { 1, 0, 1 }, { 1, 0, 2 },
+    { 1, 1, 0 }, { 1, 1, 1 }, { 1, 1, 2 }, { 1, 2, 0 },
+    { 1, 2, 1 }, { 1, 2, 2 }, { 2, 0, 0 }, { 2, 0, 1 },
+    { 2, 0, 2 }, { 2, 1, 0 }, { 2, 1, 1 }, { 2, 1, 2 },
+    { 2, 2, 0 }, { 2, 2, 1 }, { 2, 2, 2 }, { 3, 0, 0 },
+    { 3, 0, 1 }, { 3, 0, 2 }, { 3, 1, 0 }, { 3, 1, 1 }
+};
+
+const uint8_t ff_eac3_hebap_tab[64] = {
+    0, 1, 2, 3, 4, 5, 6, 7, 8, 8,
+    8, 8, 9, 9, 9, 10, 10, 10, 10, 11,
+    11, 11, 11, 12, 12, 12, 12, 13, 13, 13,
+    13, 14, 14, 14, 14, 15, 15, 15, 15, 16,
+    16, 16, 16, 17, 17, 17, 17, 18, 18, 18,
+    18, 18, 18, 18, 18, 19, 19, 19, 19, 19,
+    19, 19, 19, 19,
+};
+
+/**
+ * Table E2.15 Default Spectral Extension Banding Structure
+ */
+const uint8_t ff_eac3_default_spx_band_struct[17] =
+{ 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 };
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec_data.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec_data.h
new file mode 100644
index 000000000..975b52ef2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec_data.h
@@ -0,0 +1,32 @@
+/*
+ * AC-3 and E-AC-3 decoder tables
+ * Copyright (c) 2007 Bartlomiej Wolowiec <bartek.wolowiec@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AC3DEC_DATA_H
+#define AVCODEC_AC3DEC_DATA_H
+
+#include <stdint.h>
+
+extern const uint8_t ff_ac3_ungroup_3_in_5_bits_tab[32][3];
+
+extern const uint8_t ff_eac3_hebap_tab[64];
+extern const uint8_t ff_eac3_default_spx_band_struct[17];
+
+#endif /* AVCODEC_AC3DEC_DATA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec_fixed.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec_fixed.c
new file mode 100644
index 000000000..bd66175d5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec_fixed.c
@@ -0,0 +1,197 @@
+/*
+ * Copyright (c) 2012
+ *      MIPS Technologies, Inc., California.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Author:  Stanislav Ocovaj (socovaj@mips.com)
+ *
+ * AC3 fixed-point decoder for MIPS platforms
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define FFT_FLOAT 0
+#define USE_FIXED 1
+#define FFT_FIXED_32 1
+#include "ac3dec.h"
+
+
+static const int end_freq_inv_tab[8] =
+{
+    50529027, 44278013, 39403370, 32292987, 27356480, 23729101, 20951060, 18755316
+};
+
+static void scale_coefs (
+    int32_t *dst,
+    const int32_t *src,
+    int dynrng,
+    int len)
+{
+    int i, shift;
+    unsigned mul, round;
+    int temp, temp1, temp2, temp3, temp4, temp5, temp6, temp7;
+
+    mul = (dynrng & 0x1f) + 0x20;
+    shift = 4 - (sign_extend(dynrng, 9) >> 5);
+    if (shift > 0 ) {
+      round = 1 << (shift-1);
+      for (i=0; i<len; i+=8) {
+
+          temp = src[i] * mul;
+          temp1 = src[i+1] * mul;
+          temp = temp + round;
+          temp2 = src[i+2] * mul;
+
+          temp1 = temp1 + round;
+          dst[i] = temp >> shift;
+          temp3 = src[i+3] * mul;
+          temp2 = temp2 + round;
+
+          dst[i+1] = temp1 >> shift;
+          temp4 = src[i + 4] * mul;
+          temp3 = temp3 + round;
+          dst[i+2] = temp2 >> shift;
+
+          temp5 = src[i+5] * mul;
+          temp4 = temp4 + round;
+          dst[i+3] = temp3 >> shift;
+          temp6 = src[i+6] * mul;
+
+          dst[i+4] = temp4 >> shift;
+          temp5 = temp5 + round;
+          temp7 = src[i+7] * mul;
+          temp6 = temp6 + round;
+
+          dst[i+5] = temp5 >> shift;
+          temp7 = temp7 + round;
+          dst[i+6] = temp6 >> shift;
+          dst[i+7] = temp7 >> shift;
+
+      }
+    } else {
+      shift = -shift;
+      for (i=0; i<len; i+=8) {
+
+          temp = src[i] * mul;
+          temp1 = src[i+1] * mul;
+          temp2 = src[i+2] * mul;
+
+          dst[i] = temp << shift;
+          temp3 = src[i+3] * mul;
+
+          dst[i+1] = temp1 << shift;
+          temp4 = src[i + 4] * mul;
+          dst[i+2] = temp2 << shift;
+
+          temp5 = src[i+5] * mul;
+          dst[i+3] = temp3 << shift;
+          temp6 = src[i+6] * mul;
+
+          dst[i+4] = temp4 << shift;
+          temp7 = src[i+7] * mul;
+
+          dst[i+5] = temp5 << shift;
+          dst[i+6] = temp6 << shift;
+          dst[i+7] = temp7 << shift;
+
+      }
+    }
+}
+
+/**
+ * Downmix samples from original signal to stereo or mono (this is for 16-bit samples
+ * and fixed point decoder - original (for 32-bit samples) is in ac3dsp.c).
+ */
+static void ac3_downmix_c_fixed16(int16_t **samples, int16_t **matrix,
+                                  int out_ch, int in_ch, int len)
+{
+    int i, j;
+    int v0, v1;
+    if (out_ch == 2) {
+        for (i = 0; i < len; i++) {
+            v0 = v1 = 0;
+            for (j = 0; j < in_ch; j++) {
+                v0 += samples[j][i] * matrix[0][j];
+                v1 += samples[j][i] * matrix[1][j];
+            }
+            samples[0][i] = (v0+2048)>>12;
+            samples[1][i] = (v1+2048)>>12;
+        }
+    } else if (out_ch == 1) {
+        for (i = 0; i < len; i++) {
+            v0 = 0;
+            for (j = 0; j < in_ch; j++)
+                v0 += samples[j][i] * matrix[0][j];
+            samples[0][i] = (v0+2048)>>12;
+        }
+    }
+}
+
+#include "eac3dec.c"
+#include "ac3dec.c"
+
+static const AVOption options[] = {
+    { "cons_noisegen", "enable consistent noise generation", OFFSET(consistent_noise_generation), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, PAR },
+    { "drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), AV_OPT_TYPE_FLOAT, {.dbl = 1.0}, 0.0, 6.0, PAR },
+    { "heavy_compr", "enable heavy dynamic range compression", OFFSET(heavy_compression), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, PAR },
+    { NULL},
+};
+
+static const AVClass ac3_decoder_class = {
+    .class_name = "Fixed-Point AC-3 Decoder",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_ac3_fixed_decoder = {
+    .name           = "ac3_fixed",
+    .type           = AVMEDIA_TYPE_AUDIO,
+    .id             = AV_CODEC_ID_AC3,
+    .priv_data_size = sizeof (AC3DecodeContext),
+    .init           = ac3_decode_init,
+    .close          = ac3_decode_end,
+    .decode         = ac3_decode_frame,
+    .capabilities   = AV_CODEC_CAP_DR1,
+    .long_name      = NULL_IF_CONFIG_SMALL("ATSC A/52A (AC-3)"),
+    .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_S16P,
+                                                      AV_SAMPLE_FMT_NONE },
+    .priv_class     = &ac3_decoder_class,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec_float.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec_float.c
new file mode 100644
index 000000000..b85a4ce33
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dec_float.c
@@ -0,0 +1,93 @@
+/*
+ * AC-3 Audio Decoder
+ * This code was developed as part of Google Summer of Code 2006.
+ * E-AC-3 support was added as part of Google Summer of Code 2007.
+ *
+ * Copyright (c) 2006 Kartikey Mahendra BHATT (bhattkm at gmail dot com)
+ * Copyright (c) 2007-2008 Bartlomiej Wolowiec <bartek.wolowiec@gmail.com>
+ * Copyright (c) 2007 Justin Ruggles <justin.ruggles@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * Upmix delay samples from stereo to original channel layout.
+ */
+#include "ac3dec.h"
+#include "eac3dec.c"
+#include "ac3dec.c"
+
+static const AVOption options[] = {
+    { "cons_noisegen", "enable consistent noise generation", OFFSET(consistent_noise_generation), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, PAR },
+    { "drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), AV_OPT_TYPE_FLOAT, {.dbl = 1.0}, 0.0, 6.0, PAR },
+    { "heavy_compr", "enable heavy dynamic range compression", OFFSET(heavy_compression), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, PAR },
+    { "target_level", "target level in -dBFS (0 not applied)", OFFSET(target_level), AV_OPT_TYPE_INT, {.i64 = 0 }, -31, 0, PAR },
+
+{"dmix_mode", "Preferred Stereo Downmix Mode", OFFSET(preferred_stereo_downmix), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, 2, 0, "dmix_mode"},
+{"ltrt_cmixlev",   "Lt/Rt Center Mix Level",   OFFSET(ltrt_center_mix_level),    AV_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1.0, 2.0, 0},
+{"ltrt_surmixlev", "Lt/Rt Surround Mix Level", OFFSET(ltrt_surround_mix_level),  AV_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1.0, 2.0, 0},
+{"loro_cmixlev",   "Lo/Ro Center Mix Level",   OFFSET(loro_center_mix_level),    AV_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1.0, 2.0, 0},
+{"loro_surmixlev", "Lo/Ro Surround Mix Level", OFFSET(loro_surround_mix_level),  AV_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1.0, 2.0, 0},
+
+    { NULL},
+};
+
+static const AVClass ac3_decoder_class = {
+    .class_name = "AC3 decoder",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_ac3_decoder = {
+    .name           = "ac3",
+    .type           = AVMEDIA_TYPE_AUDIO,
+    .id             = AV_CODEC_ID_AC3,
+    .priv_data_size = sizeof (AC3DecodeContext),
+    .init           = ac3_decode_init,
+    .close          = ac3_decode_end,
+    .decode         = ac3_decode_frame,
+    .capabilities   = AV_CODEC_CAP_DR1,
+    .long_name      = NULL_IF_CONFIG_SMALL("ATSC A/52A (AC-3)"),
+    .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP,
+                                                      AV_SAMPLE_FMT_NONE },
+    .priv_class     = &ac3_decoder_class,
+};
+
+#if CONFIG_EAC3_DECODER
+static const AVClass eac3_decoder_class = {
+    .class_name = "E-AC3 decoder",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_eac3_decoder = {
+    .name           = "eac3",
+    .type           = AVMEDIA_TYPE_AUDIO,
+    .id             = AV_CODEC_ID_EAC3,
+    .priv_data_size = sizeof (AC3DecodeContext),
+    .init           = ac3_decode_init,
+    .close          = ac3_decode_end,
+    .decode         = ac3_decode_frame,
+    .capabilities   = AV_CODEC_CAP_DR1,
+    .long_name      = NULL_IF_CONFIG_SMALL("ATSC A/52B (AC-3, E-AC-3)"),
+    .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP,
+                                                      AV_SAMPLE_FMT_NONE },
+    .priv_class     = &eac3_decoder_class,
+};
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dsp.c
new file mode 100644
index 000000000..43438da13
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dsp.c
@@ -0,0 +1,447 @@
+/*
+ * AC-3 DSP functions
+ * Copyright (c) 2011 Justin Ruggles
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
+#include "ac3.h"
+#include "ac3dsp.h"
+#include "mathops.h"
+
+static void ac3_exponent_min_c(uint8_t *exp, int num_reuse_blocks, int nb_coefs)
+{
+    int blk, i;
+
+    if (!num_reuse_blocks)
+        return;
+
+    for (i = 0; i < nb_coefs; i++) {
+        uint8_t min_exp = *exp;
+        uint8_t *exp1 = exp + 256;
+        for (blk = 0; blk < num_reuse_blocks; blk++) {
+            uint8_t next_exp = *exp1;
+            if (next_exp < min_exp)
+                min_exp = next_exp;
+            exp1 += 256;
+        }
+        *exp++ = min_exp;
+    }
+}
+
+static int ac3_max_msb_abs_int16_c(const int16_t *src, int len)
+{
+    int i, v = 0;
+    for (i = 0; i < len; i++)
+        v |= abs(src[i]);
+    return v;
+}
+
+static void ac3_lshift_int16_c(int16_t *src, unsigned int len,
+                               unsigned int shift)
+{
+    uint32_t *src32 = (uint32_t *)src;
+    const uint32_t mask = ~(((1 << shift) - 1) << 16);
+    int i;
+    len >>= 1;
+    for (i = 0; i < len; i += 8) {
+        src32[i  ] = (src32[i  ] << shift) & mask;
+        src32[i+1] = (src32[i+1] << shift) & mask;
+        src32[i+2] = (src32[i+2] << shift) & mask;
+        src32[i+3] = (src32[i+3] << shift) & mask;
+        src32[i+4] = (src32[i+4] << shift) & mask;
+        src32[i+5] = (src32[i+5] << shift) & mask;
+        src32[i+6] = (src32[i+6] << shift) & mask;
+        src32[i+7] = (src32[i+7] << shift) & mask;
+    }
+}
+
+static void ac3_rshift_int32_c(int32_t *src, unsigned int len,
+                               unsigned int shift)
+{
+    do {
+        *src++ >>= shift;
+        *src++ >>= shift;
+        *src++ >>= shift;
+        *src++ >>= shift;
+        *src++ >>= shift;
+        *src++ >>= shift;
+        *src++ >>= shift;
+        *src++ >>= shift;
+        len -= 8;
+    } while (len > 0);
+}
+
+static void float_to_fixed24_c(int32_t *dst, const float *src, unsigned int len)
+{
+    const float scale = 1 << 24;
+    do {
+        *dst++ = lrintf(*src++ * scale);
+        *dst++ = lrintf(*src++ * scale);
+        *dst++ = lrintf(*src++ * scale);
+        *dst++ = lrintf(*src++ * scale);
+        *dst++ = lrintf(*src++ * scale);
+        *dst++ = lrintf(*src++ * scale);
+        *dst++ = lrintf(*src++ * scale);
+        *dst++ = lrintf(*src++ * scale);
+        len -= 8;
+    } while (len > 0);
+}
+
+static void ac3_bit_alloc_calc_bap_c(int16_t *mask, int16_t *psd,
+                                     int start, int end,
+                                     int snr_offset, int floor,
+                                     const uint8_t *bap_tab, uint8_t *bap)
+{
+    int bin, band, band_end;
+
+    /* special case, if snr offset is -960, set all bap's to zero */
+    if (snr_offset == -960) {
+        memset(bap, 0, AC3_MAX_COEFS);
+        return;
+    }
+
+    bin  = start;
+    band = ff_ac3_bin_to_band_tab[start];
+    do {
+        int m = (FFMAX(mask[band] - snr_offset - floor, 0) & 0x1FE0) + floor;
+        band_end = ff_ac3_band_start_tab[++band];
+        band_end = FFMIN(band_end, end);
+
+        for (; bin < band_end; bin++) {
+            int address = av_clip_uintp2((psd[bin] - m) >> 5, 6);
+            bap[bin] = bap_tab[address];
+        }
+    } while (end > band_end);
+}
+
+static void ac3_update_bap_counts_c(uint16_t mant_cnt[16], uint8_t *bap,
+                                    int len)
+{
+    while (len-- > 0)
+        mant_cnt[bap[len]]++;
+}
+
+DECLARE_ALIGNED(16, const uint16_t, ff_ac3_bap_bits)[16] = {
+    0,  0,  0,  3,  0,  4,  5,  6,  7,  8,  9, 10, 11, 12, 14, 16
+};
+
+static int ac3_compute_mantissa_size_c(uint16_t mant_cnt[6][16])
+{
+    int blk, bap;
+    int bits = 0;
+
+    for (blk = 0; blk < AC3_MAX_BLOCKS; blk++) {
+        // bap=1 : 3 mantissas in 5 bits
+        bits += (mant_cnt[blk][1] / 3) * 5;
+        // bap=2 : 3 mantissas in 7 bits
+        // bap=4 : 2 mantissas in 7 bits
+        bits += ((mant_cnt[blk][2] / 3) + (mant_cnt[blk][4] >> 1)) * 7;
+        // bap=3 : 1 mantissa in 3 bits
+        bits += mant_cnt[blk][3] * 3;
+        // bap=5 to 15 : get bits per mantissa from table
+        for (bap = 5; bap < 16; bap++)
+            bits += mant_cnt[blk][bap] * ff_ac3_bap_bits[bap];
+    }
+    return bits;
+}
+
+static void ac3_extract_exponents_c(uint8_t *exp, int32_t *coef, int nb_coefs)
+{
+    int i;
+
+    for (i = 0; i < nb_coefs; i++) {
+        int v = abs(coef[i]);
+        exp[i] = v ? 23 - av_log2(v) : 24;
+    }
+}
+
+static void ac3_sum_square_butterfly_int32_c(int64_t sum[4],
+                                             const int32_t *coef0,
+                                             const int32_t *coef1,
+                                             int len)
+{
+    int i;
+
+    sum[0] = sum[1] = sum[2] = sum[3] = 0;
+
+    for (i = 0; i < len; i++) {
+        int lt = coef0[i];
+        int rt = coef1[i];
+        int md = lt + rt;
+        int sd = lt - rt;
+        MAC64(sum[0], lt, lt);
+        MAC64(sum[1], rt, rt);
+        MAC64(sum[2], md, md);
+        MAC64(sum[3], sd, sd);
+    }
+}
+
+static void ac3_sum_square_butterfly_float_c(float sum[4],
+                                             const float *coef0,
+                                             const float *coef1,
+                                             int len)
+{
+    int i;
+
+    sum[0] = sum[1] = sum[2] = sum[3] = 0;
+
+    for (i = 0; i < len; i++) {
+        float lt = coef0[i];
+        float rt = coef1[i];
+        float md = lt + rt;
+        float sd = lt - rt;
+        sum[0] += lt * lt;
+        sum[1] += rt * rt;
+        sum[2] += md * md;
+        sum[3] += sd * sd;
+    }
+}
+
+static void ac3_downmix_5_to_2_symmetric_c(float **samples, float **matrix,
+                                           int len)
+{
+    int i;
+    float v0, v1;
+    float front_mix    = matrix[0][0];
+    float center_mix   = matrix[0][1];
+    float surround_mix = matrix[0][3];
+
+    for (i = 0; i < len; i++) {
+        v0 = samples[0][i] * front_mix  +
+             samples[1][i] * center_mix +
+             samples[3][i] * surround_mix;
+
+        v1 = samples[1][i] * center_mix +
+             samples[2][i] * front_mix  +
+             samples[4][i] * surround_mix;
+
+        samples[0][i] = v0;
+        samples[1][i] = v1;
+    }
+}
+
+static void ac3_downmix_5_to_1_symmetric_c(float **samples, float **matrix,
+                                           int len)
+{
+    int i;
+    float front_mix    = matrix[0][0];
+    float center_mix   = matrix[0][1];
+    float surround_mix = matrix[0][3];
+
+    for (i = 0; i < len; i++) {
+        samples[0][i] = samples[0][i] * front_mix    +
+                        samples[1][i] * center_mix   +
+                        samples[2][i] * front_mix    +
+                        samples[3][i] * surround_mix +
+                        samples[4][i] * surround_mix;
+    }
+}
+
+static void ac3_downmix_c(float **samples, float **matrix,
+                          int out_ch, int in_ch, int len)
+{
+    int i, j;
+    float v0, v1;
+
+    if (out_ch == 2) {
+        for (i = 0; i < len; i++) {
+            v0 = v1 = 0.0f;
+            for (j = 0; j < in_ch; j++) {
+                v0 += samples[j][i] * matrix[0][j];
+                v1 += samples[j][i] * matrix[1][j];
+            }
+            samples[0][i] = v0;
+            samples[1][i] = v1;
+        }
+    } else if (out_ch == 1) {
+        for (i = 0; i < len; i++) {
+            v0 = 0.0f;
+            for (j = 0; j < in_ch; j++)
+                v0 += samples[j][i] * matrix[0][j];
+            samples[0][i] = v0;
+        }
+    }
+}
+
+static void ac3_downmix_5_to_2_symmetric_c_fixed(int32_t **samples, int16_t **matrix,
+                                           int len)
+{
+    int i;
+    int64_t v0, v1;
+    int16_t front_mix    = matrix[0][0];
+    int16_t center_mix   = matrix[0][1];
+    int16_t surround_mix = matrix[0][3];
+
+    for (i = 0; i < len; i++) {
+        v0 = (int64_t)samples[0][i] * front_mix  +
+             (int64_t)samples[1][i] * center_mix +
+             (int64_t)samples[3][i] * surround_mix;
+
+        v1 = (int64_t)samples[1][i] * center_mix +
+             (int64_t)samples[2][i] * front_mix  +
+             (int64_t)samples[4][i] * surround_mix;
+
+        samples[0][i] = (v0+2048)>>12;
+        samples[1][i] = (v1+2048)>>12;
+    }
+}
+
+static void ac3_downmix_5_to_1_symmetric_c_fixed(int32_t **samples, int16_t **matrix,
+                                                 int len)
+{
+    int i;
+    int64_t v0;
+    int16_t front_mix    = matrix[0][0];
+    int16_t center_mix   = matrix[0][1];
+    int16_t surround_mix = matrix[0][3];
+
+    for (i = 0; i < len; i++) {
+        v0 = (int64_t)samples[0][i] * front_mix    +
+             (int64_t)samples[1][i] * center_mix   +
+             (int64_t)samples[2][i] * front_mix    +
+             (int64_t)samples[3][i] * surround_mix +
+             (int64_t)samples[4][i] * surround_mix;
+
+        samples[0][i] = (v0+2048)>>12;
+    }
+}
+
+static void ac3_downmix_c_fixed(int32_t **samples, int16_t **matrix,
+                                int out_ch, int in_ch, int len)
+{
+    int i, j;
+    int64_t v0, v1;
+    if (out_ch == 2) {
+        for (i = 0; i < len; i++) {
+            v0 = v1 = 0;
+            for (j = 0; j < in_ch; j++) {
+                v0 += (int64_t)samples[j][i] * matrix[0][j];
+                v1 += (int64_t)samples[j][i] * matrix[1][j];
+            }
+            samples[0][i] = (v0+2048)>>12;
+            samples[1][i] = (v1+2048)>>12;
+        }
+    } else if (out_ch == 1) {
+        for (i = 0; i < len; i++) {
+            v0 = 0;
+            for (j = 0; j < in_ch; j++)
+                v0 += (int64_t)samples[j][i] * matrix[0][j];
+            samples[0][i] = (v0+2048)>>12;
+        }
+    }
+}
+
+void ff_ac3dsp_downmix_fixed(AC3DSPContext *c, int32_t **samples, int16_t **matrix,
+                             int out_ch, int in_ch, int len)
+{
+    if (c->in_channels != in_ch || c->out_channels != out_ch) {
+        c->in_channels  = in_ch;
+        c->out_channels = out_ch;
+        c->downmix_fixed = NULL;
+
+        if (in_ch == 5 && out_ch == 2 &&
+            !(matrix[1][0] | matrix[0][2]  |
+              matrix[1][3] | matrix[0][4]  |
+             (matrix[0][1] ^ matrix[1][1]) |
+             (matrix[0][0] ^ matrix[1][2]))) {
+            c->downmix_fixed = ac3_downmix_5_to_2_symmetric_c_fixed;
+        } else if (in_ch == 5 && out_ch == 1 &&
+                   matrix[0][0] == matrix[0][2] &&
+                   matrix[0][3] == matrix[0][4]) {
+            c->downmix_fixed = ac3_downmix_5_to_1_symmetric_c_fixed;
+        }
+    }
+
+    if (c->downmix_fixed)
+        c->downmix_fixed(samples, matrix, len);
+    else
+        ac3_downmix_c_fixed(samples, matrix, out_ch, in_ch, len);
+}
+
+static void apply_window_int16_c(int16_t *output, const int16_t *input,
+                                 const int16_t *window, unsigned int len)
+{
+    int i;
+    int len2 = len >> 1;
+
+    for (i = 0; i < len2; i++) {
+        int16_t w       = window[i];
+        output[i]       = (MUL16(input[i],       w) + (1 << 14)) >> 15;
+        output[len-i-1] = (MUL16(input[len-i-1], w) + (1 << 14)) >> 15;
+    }
+}
+
+void ff_ac3dsp_downmix(AC3DSPContext *c, float **samples, float **matrix,
+                       int out_ch, int in_ch, int len)
+{
+    if (c->in_channels != in_ch || c->out_channels != out_ch) {
+        int **matrix_cmp = (int **)matrix;
+
+        c->in_channels  = in_ch;
+        c->out_channels = out_ch;
+        c->downmix      = NULL;
+
+        if (in_ch == 5 && out_ch == 2 &&
+            !(matrix_cmp[1][0] | matrix_cmp[0][2]   |
+              matrix_cmp[1][3] | matrix_cmp[0][4]   |
+             (matrix_cmp[0][1] ^ matrix_cmp[1][1]) |
+             (matrix_cmp[0][0] ^ matrix_cmp[1][2]))) {
+            c->downmix = ac3_downmix_5_to_2_symmetric_c;
+        } else if (in_ch == 5 && out_ch == 1 &&
+                   matrix_cmp[0][0] == matrix_cmp[0][2] &&
+                   matrix_cmp[0][3] == matrix_cmp[0][4]) {
+            c->downmix = ac3_downmix_5_to_1_symmetric_c;
+        }
+
+        if (ARCH_X86)
+            ff_ac3dsp_set_downmix_x86(c);
+    }
+
+    if (c->downmix)
+        c->downmix(samples, matrix, len);
+    else
+        ac3_downmix_c(samples, matrix, out_ch, in_ch, len);
+}
+
+av_cold void ff_ac3dsp_init(AC3DSPContext *c, int bit_exact)
+{
+    c->ac3_exponent_min = ac3_exponent_min_c;
+    c->ac3_max_msb_abs_int16 = ac3_max_msb_abs_int16_c;
+    c->ac3_lshift_int16 = ac3_lshift_int16_c;
+    c->ac3_rshift_int32 = ac3_rshift_int32_c;
+    c->float_to_fixed24 = float_to_fixed24_c;
+    c->bit_alloc_calc_bap = ac3_bit_alloc_calc_bap_c;
+    c->update_bap_counts = ac3_update_bap_counts_c;
+    c->compute_mantissa_size = ac3_compute_mantissa_size_c;
+    c->extract_exponents = ac3_extract_exponents_c;
+    c->sum_square_butterfly_int32 = ac3_sum_square_butterfly_int32_c;
+    c->sum_square_butterfly_float = ac3_sum_square_butterfly_float_c;
+    c->in_channels           = 0;
+    c->out_channels          = 0;
+    c->downmix               = NULL;
+    c->downmix_fixed         = NULL;
+    c->apply_window_int16 = apply_window_int16_c;
+
+    if (ARCH_ARM)
+        ff_ac3dsp_init_arm(c, bit_exact);
+    if (ARCH_X86)
+        ff_ac3dsp_init_x86(c, bit_exact);
+    if (ARCH_MIPS)
+        ff_ac3dsp_init_mips(c, bit_exact);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dsp.h
new file mode 100644
index 000000000..161de4cb8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3dsp.h
@@ -0,0 +1,167 @@
+/*
+ * AC-3 DSP functions
+ * Copyright (c) 2011 Justin Ruggles
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AC3DSP_H
+#define AVCODEC_AC3DSP_H
+
+#include <stdint.h>
+
+/**
+ * Number of mantissa bits written for each bap value.
+ * bap values with fractional bits are set to 0 and are calculated separately.
+ */
+extern const uint16_t ff_ac3_bap_bits[16];
+
+typedef struct AC3DSPContext {
+    /**
+     * Set each encoded exponent in a block to the minimum of itself and the
+     * exponents in the same frequency bin of up to 5 following blocks.
+     * @param exp   pointer to the start of the current block of exponents.
+     *              constraints: align 16
+     * @param num_reuse_blocks  number of blocks that will reuse exponents from the current block.
+     *                          constraints: range 0 to 5
+     * @param nb_coefs  number of frequency coefficients.
+     */
+    void (*ac3_exponent_min)(uint8_t *exp, int num_reuse_blocks, int nb_coefs);
+
+    /**
+     * Calculate the maximum MSB of the absolute value of each element in an
+     * array of int16_t.
+     * @param src input array
+     *            constraints: align 16. values must be in range [-32767,32767]
+     * @param len number of values in the array
+     *            constraints: multiple of 16 greater than 0
+     * @return    a value with the same MSB as max(abs(src[]))
+     */
+    int (*ac3_max_msb_abs_int16)(const int16_t *src, int len);
+
+    /**
+     * Left-shift each value in an array of int16_t by a specified amount.
+     * @param src    input array
+     *               constraints: align 16
+     * @param len    number of values in the array
+     *               constraints: multiple of 32 greater than 0
+     * @param shift  left shift amount
+     *               constraints: range [0,15]
+     */
+    void (*ac3_lshift_int16)(int16_t *src, unsigned int len, unsigned int shift);
+
+    /**
+     * Right-shift each value in an array of int32_t by a specified amount.
+     * @param src    input array
+     *               constraints: align 16
+     * @param len    number of values in the array
+     *               constraints: multiple of 16 greater than 0
+     * @param shift  right shift amount
+     *               constraints: range [0,31]
+     */
+    void (*ac3_rshift_int32)(int32_t *src, unsigned int len, unsigned int shift);
+
+    /**
+     * Convert an array of float in range [-1.0,1.0] to int32_t with range
+     * [-(1<<24),(1<<24)]
+     *
+     * @param dst destination array of int32_t.
+     *            constraints: 16-byte aligned
+     * @param src source array of float.
+     *            constraints: 16-byte aligned
+     * @param len number of elements to convert.
+     *            constraints: multiple of 32 greater than zero
+     */
+    void (*float_to_fixed24)(int32_t *dst, const float *src, unsigned int len);
+
+    /**
+     * Calculate bit allocation pointers.
+     * The SNR is the difference between the masking curve and the signal.  AC-3
+     * uses this value for each frequency bin to allocate bits.  The snroffset
+     * parameter is a global adjustment to the SNR for all bins.
+     *
+     * @param[in]  mask       masking curve
+     * @param[in]  psd        signal power for each frequency bin
+     * @param[in]  start      starting bin location
+     * @param[in]  end        ending bin location
+     * @param[in]  snr_offset SNR adjustment
+     * @param[in]  floor      noise floor
+     * @param[in]  bap_tab    look-up table for bit allocation pointers
+     * @param[out] bap        bit allocation pointers
+     */
+    void (*bit_alloc_calc_bap)(int16_t *mask, int16_t *psd, int start, int end,
+                               int snr_offset, int floor,
+                               const uint8_t *bap_tab, uint8_t *bap);
+
+    /**
+     * Update bap counts using the supplied array of bap.
+     *
+     * @param[out] mant_cnt   bap counts for 1 block
+     * @param[in]  bap        array of bap, pointing to start coef bin
+     * @param[in]  len        number of elements to process
+     */
+    void (*update_bap_counts)(uint16_t mant_cnt[16], uint8_t *bap, int len);
+
+    /**
+     * Calculate the number of bits needed to encode a set of mantissas.
+     *
+     * @param[in] mant_cnt    bap counts for all blocks
+     * @return                mantissa bit count
+     */
+    int (*compute_mantissa_size)(uint16_t mant_cnt[6][16]);
+
+    void (*extract_exponents)(uint8_t *exp, int32_t *coef, int nb_coefs);
+
+    void (*sum_square_butterfly_int32)(int64_t sum[4], const int32_t *coef0,
+                                       const int32_t *coef1, int len);
+
+    void (*sum_square_butterfly_float)(float sum[4], const float *coef0,
+                                       const float *coef1, int len);
+
+    int out_channels;
+    int in_channels;
+    void (*downmix)(float **samples, float **matrix, int len);
+    void (*downmix_fixed)(int32_t **samples, int16_t **matrix, int len);
+
+    /**
+     * Apply symmetric window in 16-bit fixed-point.
+     * @param output destination array
+     *               constraints: 16-byte aligned
+     * @param input  source array
+     *               constraints: 16-byte aligned
+     * @param window window array
+     *               constraints: 16-byte aligned, at least len/2 elements
+     * @param len    full window length
+     *               constraints: multiple of ? greater than zero
+     */
+    void (*apply_window_int16)(int16_t *output, const int16_t *input,
+                               const int16_t *window, unsigned int len);
+} AC3DSPContext;
+
+void ff_ac3dsp_init    (AC3DSPContext *c, int bit_exact);
+void ff_ac3dsp_init_arm(AC3DSPContext *c, int bit_exact);
+void ff_ac3dsp_init_x86(AC3DSPContext *c, int bit_exact);
+void ff_ac3dsp_init_mips(AC3DSPContext *c, int bit_exact);
+
+void ff_ac3dsp_downmix(AC3DSPContext *c, float **samples, float **matrix,
+                       int out_ch, int in_ch, int len);
+void ff_ac3dsp_downmix_fixed(AC3DSPContext *c, int32_t **samples, int16_t **matrix,
+                             int out_ch, int in_ch, int len);
+
+void ff_ac3dsp_set_downmix_x86(AC3DSPContext *c);
+
+#endif /* AVCODEC_AC3DSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc.c
new file mode 100644
index 000000000..f1c95ce87
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc.c
@@ -0,0 +1,2495 @@
+/*
+ * The simplest AC-3 encoder
+ * Copyright (c) 2000 Fabrice Bellard
+ * Copyright (c) 2006-2010 Justin Ruggles <justin.ruggles@gmail.com>
+ * Copyright (c) 2006-2010 Prakash Punnoor <prakash@punnoor.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * The simplest AC-3 encoder.
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
+#include "libavutil/avstring.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/crc.h"
+#include "libavutil/internal.h"
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "internal.h"
+#include "me_cmp.h"
+#include "put_bits.h"
+#include "audiodsp.h"
+#include "ac3dsp.h"
+#include "ac3.h"
+#include "fft.h"
+#include "ac3enc.h"
+#include "eac3enc.h"
+
+typedef struct AC3Mant {
+    int16_t *qmant1_ptr, *qmant2_ptr, *qmant4_ptr; ///< mantissa pointers for bap=1,2,4
+    int mant1_cnt, mant2_cnt, mant4_cnt;    ///< mantissa counts for bap=1,2,4
+} AC3Mant;
+
+#define CMIXLEV_NUM_OPTIONS 3
+static const float cmixlev_options[CMIXLEV_NUM_OPTIONS] = {
+    LEVEL_MINUS_3DB, LEVEL_MINUS_4POINT5DB, LEVEL_MINUS_6DB
+};
+
+#define SURMIXLEV_NUM_OPTIONS 3
+static const float surmixlev_options[SURMIXLEV_NUM_OPTIONS] = {
+    LEVEL_MINUS_3DB, LEVEL_MINUS_6DB, LEVEL_ZERO
+};
+
+#define EXTMIXLEV_NUM_OPTIONS 8
+static const float extmixlev_options[EXTMIXLEV_NUM_OPTIONS] = {
+    LEVEL_PLUS_3DB,  LEVEL_PLUS_1POINT5DB,  LEVEL_ONE,       LEVEL_MINUS_4POINT5DB,
+    LEVEL_MINUS_3DB, LEVEL_MINUS_4POINT5DB, LEVEL_MINUS_6DB, LEVEL_ZERO
+};
+
+
+/**
+ * LUT for number of exponent groups.
+ * exponent_group_tab[coupling][exponent strategy-1][number of coefficients]
+ */
+static uint8_t exponent_group_tab[2][3][256];
+
+
+/**
+ * List of supported channel layouts.
+ */
+const uint64_t ff_ac3_channel_layouts[19] = {
+     AV_CH_LAYOUT_MONO,
+     AV_CH_LAYOUT_STEREO,
+     AV_CH_LAYOUT_2_1,
+     AV_CH_LAYOUT_SURROUND,
+     AV_CH_LAYOUT_2_2,
+     AV_CH_LAYOUT_QUAD,
+     AV_CH_LAYOUT_4POINT0,
+     AV_CH_LAYOUT_5POINT0,
+     AV_CH_LAYOUT_5POINT0_BACK,
+    (AV_CH_LAYOUT_MONO     | AV_CH_LOW_FREQUENCY),
+    (AV_CH_LAYOUT_STEREO   | AV_CH_LOW_FREQUENCY),
+    (AV_CH_LAYOUT_2_1      | AV_CH_LOW_FREQUENCY),
+    (AV_CH_LAYOUT_SURROUND | AV_CH_LOW_FREQUENCY),
+    (AV_CH_LAYOUT_2_2      | AV_CH_LOW_FREQUENCY),
+    (AV_CH_LAYOUT_QUAD     | AV_CH_LOW_FREQUENCY),
+    (AV_CH_LAYOUT_4POINT0  | AV_CH_LOW_FREQUENCY),
+     AV_CH_LAYOUT_5POINT1,
+     AV_CH_LAYOUT_5POINT1_BACK,
+     0
+};
+
+
+/**
+ * LUT to select the bandwidth code based on the bit rate, sample rate, and
+ * number of full-bandwidth channels.
+ * bandwidth_tab[fbw_channels-1][sample rate code][bit rate code]
+ */
+static const uint8_t ac3_bandwidth_tab[5][3][19] = {
+//      32  40  48  56  64  80  96 112 128 160 192 224 256 320 384 448 512 576 640
+
+    { {  0,  0,  0, 12, 16, 32, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48 },
+      {  0,  0,  0, 16, 20, 36, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56 },
+      {  0,  0,  0, 32, 40, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60 } },
+
+    { {  0,  0,  0,  0,  0,  0,  0, 20, 24, 32, 48, 48, 48, 48, 48, 48, 48, 48, 48 },
+      {  0,  0,  0,  0,  0,  0,  4, 24, 28, 36, 56, 56, 56, 56, 56, 56, 56, 56, 56 },
+      {  0,  0,  0,  0,  0,  0, 20, 44, 52, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60 } },
+
+    { {  0,  0,  0,  0,  0,  0,  0,  0,  0, 16, 24, 32, 40, 48, 48, 48, 48, 48, 48 },
+      {  0,  0,  0,  0,  0,  0,  0,  0,  4, 20, 28, 36, 44, 56, 56, 56, 56, 56, 56 },
+      {  0,  0,  0,  0,  0,  0,  0,  0, 20, 40, 48, 60, 60, 60, 60, 60, 60, 60, 60 } },
+
+    { {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 12, 24, 32, 48, 48, 48, 48, 48, 48 },
+      {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 16, 28, 36, 56, 56, 56, 56, 56, 56 },
+      {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 32, 48, 60, 60, 60, 60, 60, 60, 60 } },
+
+    { {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  8, 20, 32, 40, 48, 48, 48, 48 },
+      {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 12, 24, 36, 44, 56, 56, 56, 56 },
+      {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 28, 44, 60, 60, 60, 60, 60, 60 } }
+};
+
+
+/**
+ * LUT to select the coupling start band based on the bit rate, sample rate, and
+ * number of full-bandwidth channels. -1 = coupling off
+ * ac3_coupling_start_tab[channel_mode-2][sample rate code][bit rate code]
+ *
+ * TODO: more testing for optimal parameters.
+ *       multi-channel tests at 44.1kHz and 32kHz.
+ */
+static const int8_t ac3_coupling_start_tab[6][3][19] = {
+//      32  40  48  56  64  80  96 112 128 160 192 224 256 320 384 448 512 576 640
+
+    // 2/0
+    { {  0,  0,  0,  0,  0,  0,  0,  1,  1,  7,  8, 11, 12, -1, -1, -1, -1, -1, -1 },
+      {  0,  0,  0,  0,  0,  0,  1,  3,  5,  7, 10, 12, 13, -1, -1, -1, -1, -1, -1 },
+      {  0,  0,  0,  0,  1,  2,  2,  9, 13, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1 } },
+
+    // 3/0
+    { {  0,  0,  0,  0,  0,  0,  0,  0,  2,  2,  6,  9, 11, 12, 13, -1, -1, -1, -1 },
+      {  0,  0,  0,  0,  0,  0,  0,  0,  2,  2,  6,  9, 11, 12, 13, -1, -1, -1, -1 },
+      { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 } },
+
+    // 2/1 - untested
+    { {  0,  0,  0,  0,  0,  0,  0,  0,  2,  2,  6,  9, 11, 12, 13, -1, -1, -1, -1 },
+      {  0,  0,  0,  0,  0,  0,  0,  0,  2,  2,  6,  9, 11, 12, 13, -1, -1, -1, -1 },
+      { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 } },
+
+    // 3/1
+    { {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  3,  2, 10, 11, 11, 12, 12, 14, -1 },
+      {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  3,  2, 10, 11, 11, 12, 12, 14, -1 },
+      { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 } },
+
+    // 2/2 - untested
+    { {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  3,  2, 10, 11, 11, 12, 12, 14, -1 },
+      {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  3,  2, 10, 11, 11, 12, 12, 14, -1 },
+      { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 } },
+
+    // 3/2
+    { {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  6,  8, 11, 12, 12, -1, -1 },
+      {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  6,  8, 11, 12, 12, -1, -1 },
+      { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 } },
+};
+
+
+/**
+ * Adjust the frame size to make the average bit rate match the target bit rate.
+ * This is only needed for 11025, 22050, and 44100 sample rates or any E-AC-3.
+ *
+ * @param s  AC-3 encoder private context
+ */
+void ff_ac3_adjust_frame_size(AC3EncodeContext *s)
+{
+    while (s->bits_written >= s->bit_rate && s->samples_written >= s->sample_rate) {
+        s->bits_written    -= s->bit_rate;
+        s->samples_written -= s->sample_rate;
+    }
+    s->frame_size = s->frame_size_min +
+                    2 * (s->bits_written * s->sample_rate < s->samples_written * s->bit_rate);
+    s->bits_written    += s->frame_size * 8;
+    s->samples_written += AC3_BLOCK_SIZE * s->num_blocks;
+}
+
+
+/**
+ * Set the initial coupling strategy parameters prior to coupling analysis.
+ *
+ * @param s  AC-3 encoder private context
+ */
+void ff_ac3_compute_coupling_strategy(AC3EncodeContext *s)
+{
+    int blk, ch;
+    int got_cpl_snr;
+    int num_cpl_blocks;
+
+    /* set coupling use flags for each block/channel */
+    /* TODO: turn coupling on/off and adjust start band based on bit usage */
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        for (ch = 1; ch <= s->fbw_channels; ch++)
+            block->channel_in_cpl[ch] = s->cpl_on;
+    }
+
+    /* enable coupling for each block if at least 2 channels have coupling
+       enabled for that block */
+    got_cpl_snr = 0;
+    num_cpl_blocks = 0;
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        block->num_cpl_channels = 0;
+        for (ch = 1; ch <= s->fbw_channels; ch++)
+            block->num_cpl_channels += block->channel_in_cpl[ch];
+        block->cpl_in_use = block->num_cpl_channels > 1;
+        num_cpl_blocks += block->cpl_in_use;
+        if (!block->cpl_in_use) {
+            block->num_cpl_channels = 0;
+            for (ch = 1; ch <= s->fbw_channels; ch++)
+                block->channel_in_cpl[ch] = 0;
+        }
+
+        block->new_cpl_strategy = !blk;
+        if (blk) {
+            for (ch = 1; ch <= s->fbw_channels; ch++) {
+                if (block->channel_in_cpl[ch] != s->blocks[blk-1].channel_in_cpl[ch]) {
+                    block->new_cpl_strategy = 1;
+                    break;
+                }
+            }
+        }
+        block->new_cpl_leak = block->new_cpl_strategy;
+
+        if (!blk || (block->cpl_in_use && !got_cpl_snr)) {
+            block->new_snr_offsets = 1;
+            if (block->cpl_in_use)
+                got_cpl_snr = 1;
+        } else {
+            block->new_snr_offsets = 0;
+        }
+    }
+    if (!num_cpl_blocks)
+        s->cpl_on = 0;
+
+    /* set bandwidth for each channel */
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        for (ch = 1; ch <= s->fbw_channels; ch++) {
+            if (block->channel_in_cpl[ch])
+                block->end_freq[ch] = s->start_freq[CPL_CH];
+            else
+                block->end_freq[ch] = s->bandwidth_code * 3 + 73;
+        }
+    }
+}
+
+
+/**
+ * Apply stereo rematrixing to coefficients based on rematrixing flags.
+ *
+ * @param s  AC-3 encoder private context
+ */
+void ff_ac3_apply_rematrixing(AC3EncodeContext *s)
+{
+    int nb_coefs;
+    int blk, bnd, i;
+    int start, end;
+    uint8_t *flags = NULL;
+
+    if (!s->rematrixing_enabled)
+        return;
+
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        if (block->new_rematrixing_strategy)
+            flags = block->rematrixing_flags;
+        nb_coefs = FFMIN(block->end_freq[1], block->end_freq[2]);
+        for (bnd = 0; bnd < block->num_rematrixing_bands; bnd++) {
+            if (flags[bnd]) {
+                start = ff_ac3_rematrix_band_tab[bnd];
+                end   = FFMIN(nb_coefs, ff_ac3_rematrix_band_tab[bnd+1]);
+                for (i = start; i < end; i++) {
+                    int32_t lt = block->fixed_coef[1][i];
+                    int32_t rt = block->fixed_coef[2][i];
+                    block->fixed_coef[1][i] = (lt + rt) >> 1;
+                    block->fixed_coef[2][i] = (lt - rt) >> 1;
+                }
+            }
+        }
+    }
+}
+
+
+/*
+ * Initialize exponent tables.
+ */
+static av_cold void exponent_init(AC3EncodeContext *s)
+{
+    int expstr, i, grpsize;
+
+    for (expstr = EXP_D15-1; expstr <= EXP_D45-1; expstr++) {
+        grpsize = 3 << expstr;
+        for (i = 12; i < 256; i++) {
+            exponent_group_tab[0][expstr][i] = (i + grpsize - 4) / grpsize;
+            exponent_group_tab[1][expstr][i] = (i              ) / grpsize;
+        }
+    }
+    /* LFE */
+    exponent_group_tab[0][0][7] = 2;
+
+    if (CONFIG_EAC3_ENCODER && s->eac3)
+        ff_eac3_exponent_init();
+}
+
+
+/*
+ * Extract exponents from the MDCT coefficients.
+ */
+static void extract_exponents(AC3EncodeContext *s)
+{
+    int ch        = !s->cpl_on;
+    int chan_size = AC3_MAX_COEFS * s->num_blocks * (s->channels - ch + 1);
+    AC3Block *block = &s->blocks[0];
+
+    s->ac3dsp.extract_exponents(block->exp[ch], block->fixed_coef[ch], chan_size);
+}
+
+
+/**
+ * Exponent Difference Threshold.
+ * New exponents are sent if their SAD exceed this number.
+ */
+#define EXP_DIFF_THRESHOLD 500
+
+/**
+ * Table used to select exponent strategy based on exponent reuse block interval.
+ */
+static const uint8_t exp_strategy_reuse_tab[4][6] = {
+    { EXP_D15, EXP_D15, EXP_D15, EXP_D15, EXP_D15, EXP_D15 },
+    { EXP_D15, EXP_D15, EXP_D15, EXP_D15, EXP_D15, EXP_D15 },
+    { EXP_D25, EXP_D25, EXP_D15, EXP_D15, EXP_D15, EXP_D15 },
+    { EXP_D45, EXP_D25, EXP_D25, EXP_D15, EXP_D15, EXP_D15 }
+};
+
+/*
+ * Calculate exponent strategies for all channels.
+ * Array arrangement is reversed to simplify the per-channel calculation.
+ */
+static void compute_exp_strategy(AC3EncodeContext *s)
+{
+    int ch, blk, blk1;
+
+    for (ch = !s->cpl_on; ch <= s->fbw_channels; ch++) {
+        uint8_t *exp_strategy = s->exp_strategy[ch];
+        uint8_t *exp          = s->blocks[0].exp[ch];
+        int exp_diff;
+
+        /* estimate if the exponent variation & decide if they should be
+           reused in the next frame */
+        exp_strategy[0] = EXP_NEW;
+        exp += AC3_MAX_COEFS;
+        for (blk = 1; blk < s->num_blocks; blk++, exp += AC3_MAX_COEFS) {
+            if (ch == CPL_CH) {
+                if (!s->blocks[blk-1].cpl_in_use) {
+                    exp_strategy[blk] = EXP_NEW;
+                    continue;
+                } else if (!s->blocks[blk].cpl_in_use) {
+                    exp_strategy[blk] = EXP_REUSE;
+                    continue;
+                }
+            } else if (s->blocks[blk].channel_in_cpl[ch] != s->blocks[blk-1].channel_in_cpl[ch]) {
+                exp_strategy[blk] = EXP_NEW;
+                continue;
+            }
+            exp_diff = s->mecc.sad[0](NULL, exp, exp - AC3_MAX_COEFS, 16, 16);
+            exp_strategy[blk] = EXP_REUSE;
+            if (ch == CPL_CH && exp_diff > (EXP_DIFF_THRESHOLD * (s->blocks[blk].end_freq[ch] - s->start_freq[ch]) / AC3_MAX_COEFS))
+                exp_strategy[blk] = EXP_NEW;
+            else if (ch > CPL_CH && exp_diff > EXP_DIFF_THRESHOLD)
+                exp_strategy[blk] = EXP_NEW;
+        }
+
+        /* now select the encoding strategy type : if exponents are often
+           recoded, we use a coarse encoding */
+        blk = 0;
+        while (blk < s->num_blocks) {
+            blk1 = blk + 1;
+            while (blk1 < s->num_blocks && exp_strategy[blk1] == EXP_REUSE)
+                blk1++;
+            exp_strategy[blk] = exp_strategy_reuse_tab[s->num_blks_code][blk1-blk-1];
+            blk = blk1;
+        }
+    }
+    if (s->lfe_on) {
+        ch = s->lfe_channel;
+        s->exp_strategy[ch][0] = EXP_D15;
+        for (blk = 1; blk < s->num_blocks; blk++)
+            s->exp_strategy[ch][blk] = EXP_REUSE;
+    }
+
+    /* for E-AC-3, determine frame exponent strategy */
+    if (CONFIG_EAC3_ENCODER && s->eac3)
+        ff_eac3_get_frame_exp_strategy(s);
+}
+
+
+/**
+ * Update the exponents so that they are the ones the decoder will decode.
+ *
+ * @param[in,out] exp   array of exponents for 1 block in 1 channel
+ * @param nb_exps       number of exponents in active bandwidth
+ * @param exp_strategy  exponent strategy for the block
+ * @param cpl           indicates if the block is in the coupling channel
+ */
+static void encode_exponents_blk_ch(uint8_t *exp, int nb_exps, int exp_strategy,
+                                    int cpl)
+{
+    int nb_groups, i, k;
+
+    nb_groups = exponent_group_tab[cpl][exp_strategy-1][nb_exps] * 3;
+
+    /* for each group, compute the minimum exponent */
+    switch(exp_strategy) {
+    case EXP_D25:
+        for (i = 1, k = 1-cpl; i <= nb_groups; i++) {
+            uint8_t exp_min = exp[k];
+            if (exp[k+1] < exp_min)
+                exp_min = exp[k+1];
+            exp[i-cpl] = exp_min;
+            k += 2;
+        }
+        break;
+    case EXP_D45:
+        for (i = 1, k = 1-cpl; i <= nb_groups; i++) {
+            uint8_t exp_min = exp[k];
+            if (exp[k+1] < exp_min)
+                exp_min = exp[k+1];
+            if (exp[k+2] < exp_min)
+                exp_min = exp[k+2];
+            if (exp[k+3] < exp_min)
+                exp_min = exp[k+3];
+            exp[i-cpl] = exp_min;
+            k += 4;
+        }
+        break;
+    }
+
+    /* constraint for DC exponent */
+    if (!cpl && exp[0] > 15)
+        exp[0] = 15;
+
+    /* decrease the delta between each groups to within 2 so that they can be
+       differentially encoded */
+    for (i = 1; i <= nb_groups; i++)
+        exp[i] = FFMIN(exp[i], exp[i-1] + 2);
+    i--;
+    while (--i >= 0)
+        exp[i] = FFMIN(exp[i], exp[i+1] + 2);
+
+    if (cpl)
+        exp[-1] = exp[0] & ~1;
+
+    /* now we have the exponent values the decoder will see */
+    switch (exp_strategy) {
+    case EXP_D25:
+        for (i = nb_groups, k = (nb_groups * 2)-cpl; i > 0; i--) {
+            uint8_t exp1 = exp[i-cpl];
+            exp[k--] = exp1;
+            exp[k--] = exp1;
+        }
+        break;
+    case EXP_D45:
+        for (i = nb_groups, k = (nb_groups * 4)-cpl; i > 0; i--) {
+            exp[k] = exp[k-1] = exp[k-2] = exp[k-3] = exp[i-cpl];
+            k -= 4;
+        }
+        break;
+    }
+}
+
+
+/*
+ * Encode exponents from original extracted form to what the decoder will see.
+ * This copies and groups exponents based on exponent strategy and reduces
+ * deltas between adjacent exponent groups so that they can be differentially
+ * encoded.
+ */
+static void encode_exponents(AC3EncodeContext *s)
+{
+    int blk, blk1, ch, cpl;
+    uint8_t *exp, *exp_strategy;
+    int nb_coefs, num_reuse_blocks;
+
+    for (ch = !s->cpl_on; ch <= s->channels; ch++) {
+        exp          = s->blocks[0].exp[ch] + s->start_freq[ch];
+        exp_strategy = s->exp_strategy[ch];
+
+        cpl = (ch == CPL_CH);
+        blk = 0;
+        while (blk < s->num_blocks) {
+            AC3Block *block = &s->blocks[blk];
+            if (cpl && !block->cpl_in_use) {
+                exp += AC3_MAX_COEFS;
+                blk++;
+                continue;
+            }
+            nb_coefs = block->end_freq[ch] - s->start_freq[ch];
+            blk1 = blk + 1;
+
+            /* count the number of EXP_REUSE blocks after the current block
+               and set exponent reference block numbers */
+            s->exp_ref_block[ch][blk] = blk;
+            while (blk1 < s->num_blocks && exp_strategy[blk1] == EXP_REUSE) {
+                s->exp_ref_block[ch][blk1] = blk;
+                blk1++;
+            }
+            num_reuse_blocks = blk1 - blk - 1;
+
+            /* for the EXP_REUSE case we select the min of the exponents */
+            s->ac3dsp.ac3_exponent_min(exp-s->start_freq[ch], num_reuse_blocks,
+                                       AC3_MAX_COEFS);
+
+            encode_exponents_blk_ch(exp, nb_coefs, exp_strategy[blk], cpl);
+
+            exp += AC3_MAX_COEFS * (num_reuse_blocks + 1);
+            blk = blk1;
+        }
+    }
+
+    /* reference block numbers have been changed, so reset ref_bap_set */
+    s->ref_bap_set = 0;
+}
+
+
+/*
+ * Count exponent bits based on bandwidth, coupling, and exponent strategies.
+ */
+static int count_exponent_bits(AC3EncodeContext *s)
+{
+    int blk, ch;
+    int nb_groups, bit_count;
+
+    bit_count = 0;
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        for (ch = !block->cpl_in_use; ch <= s->channels; ch++) {
+            int exp_strategy = s->exp_strategy[ch][blk];
+            int cpl          = (ch == CPL_CH);
+            int nb_coefs     = block->end_freq[ch] - s->start_freq[ch];
+
+            if (exp_strategy == EXP_REUSE)
+                continue;
+
+            nb_groups = exponent_group_tab[cpl][exp_strategy-1][nb_coefs];
+            bit_count += 4 + (nb_groups * 7);
+        }
+    }
+
+    return bit_count;
+}
+
+
+/**
+ * Group exponents.
+ * 3 delta-encoded exponents are in each 7-bit group. The number of groups
+ * varies depending on exponent strategy and bandwidth.
+ *
+ * @param s  AC-3 encoder private context
+ */
+void ff_ac3_group_exponents(AC3EncodeContext *s)
+{
+    int blk, ch, i, cpl;
+    int group_size, nb_groups;
+    uint8_t *p;
+    int delta0, delta1, delta2;
+    int exp0, exp1;
+
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        for (ch = !block->cpl_in_use; ch <= s->channels; ch++) {
+            int exp_strategy = s->exp_strategy[ch][blk];
+            if (exp_strategy == EXP_REUSE)
+                continue;
+            cpl = (ch == CPL_CH);
+            group_size = exp_strategy + (exp_strategy == EXP_D45);
+            nb_groups = exponent_group_tab[cpl][exp_strategy-1][block->end_freq[ch]-s->start_freq[ch]];
+            p = block->exp[ch] + s->start_freq[ch] - cpl;
+
+            /* DC exponent */
+            exp1 = *p++;
+            block->grouped_exp[ch][0] = exp1;
+
+            /* remaining exponents are delta encoded */
+            for (i = 1; i <= nb_groups; i++) {
+                /* merge three delta in one code */
+                exp0   = exp1;
+                exp1   = p[0];
+                p     += group_size;
+                delta0 = exp1 - exp0 + 2;
+                av_assert2(delta0 >= 0 && delta0 <= 4);
+
+                exp0   = exp1;
+                exp1   = p[0];
+                p     += group_size;
+                delta1 = exp1 - exp0 + 2;
+                av_assert2(delta1 >= 0 && delta1 <= 4);
+
+                exp0   = exp1;
+                exp1   = p[0];
+                p     += group_size;
+                delta2 = exp1 - exp0 + 2;
+                av_assert2(delta2 >= 0 && delta2 <= 4);
+
+                block->grouped_exp[ch][i] = ((delta0 * 5 + delta1) * 5) + delta2;
+            }
+        }
+    }
+}
+
+
+/**
+ * Calculate final exponents from the supplied MDCT coefficients and exponent shift.
+ * Extract exponents from MDCT coefficients, calculate exponent strategies,
+ * and encode final exponents.
+ *
+ * @param s  AC-3 encoder private context
+ */
+void ff_ac3_process_exponents(AC3EncodeContext *s)
+{
+    extract_exponents(s);
+
+    compute_exp_strategy(s);
+
+    encode_exponents(s);
+
+    emms_c();
+}
+
+
+/*
+ * Count frame bits that are based solely on fixed parameters.
+ * This only has to be run once when the encoder is initialized.
+ */
+static void count_frame_bits_fixed(AC3EncodeContext *s)
+{
+    static const uint8_t frame_bits_inc[8] = { 0, 0, 2, 2, 2, 4, 2, 4 };
+    int blk;
+    int frame_bits;
+
+    /* assumptions:
+     *   no dynamic range codes
+     *   bit allocation parameters do not change between blocks
+     *   no delta bit allocation
+     *   no skipped data
+     *   no auxiliary data
+     *   no E-AC-3 metadata
+     */
+
+    /* header */
+    frame_bits = 16; /* sync info */
+    if (s->eac3) {
+        /* bitstream info header */
+        frame_bits += 35;
+        frame_bits += 1 + 1;
+        if (s->num_blocks != 0x6)
+            frame_bits++;
+        frame_bits++;
+        /* audio frame header */
+        if (s->num_blocks == 6)
+            frame_bits += 2;
+        frame_bits += 10;
+        /* exponent strategy */
+        if (s->use_frame_exp_strategy)
+            frame_bits += 5 * s->fbw_channels;
+        else
+            frame_bits += s->num_blocks * 2 * s->fbw_channels;
+        if (s->lfe_on)
+            frame_bits += s->num_blocks;
+        /* converter exponent strategy */
+        if (s->num_blks_code != 0x3)
+            frame_bits++;
+        else
+            frame_bits += s->fbw_channels * 5;
+        /* snr offsets */
+        frame_bits += 10;
+        /* block start info */
+        if (s->num_blocks != 1)
+            frame_bits++;
+    } else {
+        frame_bits += 49;
+        frame_bits += frame_bits_inc[s->channel_mode];
+    }
+
+    /* audio blocks */
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        if (!s->eac3) {
+            /* block switch flags */
+            frame_bits += s->fbw_channels;
+
+            /* dither flags */
+            frame_bits += s->fbw_channels;
+        }
+
+        /* dynamic range */
+        frame_bits++;
+
+        /* spectral extension */
+        if (s->eac3)
+            frame_bits++;
+
+        if (!s->eac3) {
+            /* exponent strategy */
+            frame_bits += 2 * s->fbw_channels;
+            if (s->lfe_on)
+                frame_bits++;
+
+            /* bit allocation params */
+            frame_bits++;
+            if (!blk)
+                frame_bits += 2 + 2 + 2 + 2 + 3;
+        }
+
+        /* converter snr offset */
+        if (s->eac3)
+            frame_bits++;
+
+        if (!s->eac3) {
+            /* delta bit allocation */
+            frame_bits++;
+
+            /* skipped data */
+            frame_bits++;
+        }
+    }
+
+    /* auxiliary data */
+    frame_bits++;
+
+    /* CRC */
+    frame_bits += 1 + 16;
+
+    s->frame_bits_fixed = frame_bits;
+}
+
+
+/*
+ * Initialize bit allocation.
+ * Set default parameter codes and calculate parameter values.
+ */
+static av_cold void bit_alloc_init(AC3EncodeContext *s)
+{
+    int ch;
+
+    /* init default parameters */
+    s->slow_decay_code = 2;
+    s->fast_decay_code = 1;
+    s->slow_gain_code  = 1;
+    s->db_per_bit_code = s->eac3 ? 2 : 3;
+    s->floor_code      = 7;
+    for (ch = 0; ch <= s->channels; ch++)
+        s->fast_gain_code[ch] = 4;
+
+    /* initial snr offset */
+    s->coarse_snr_offset = 40;
+
+    /* compute real values */
+    /* currently none of these values change during encoding, so we can just
+       set them once at initialization */
+    s->bit_alloc.slow_decay = ff_ac3_slow_decay_tab[s->slow_decay_code] >> s->bit_alloc.sr_shift;
+    s->bit_alloc.fast_decay = ff_ac3_fast_decay_tab[s->fast_decay_code] >> s->bit_alloc.sr_shift;
+    s->bit_alloc.slow_gain  = ff_ac3_slow_gain_tab[s->slow_gain_code];
+    s->bit_alloc.db_per_bit = ff_ac3_db_per_bit_tab[s->db_per_bit_code];
+    s->bit_alloc.floor      = ff_ac3_floor_tab[s->floor_code];
+    s->bit_alloc.cpl_fast_leak = 0;
+    s->bit_alloc.cpl_slow_leak = 0;
+
+    count_frame_bits_fixed(s);
+}
+
+
+/*
+ * Count the bits used to encode the frame, minus exponents and mantissas.
+ * Bits based on fixed parameters have already been counted, so now we just
+ * have to add the bits based on parameters that change during encoding.
+ */
+static void count_frame_bits(AC3EncodeContext *s)
+{
+    AC3EncOptions *opt = &s->options;
+    int blk, ch;
+    int frame_bits = 0;
+
+    /* header */
+    if (s->eac3) {
+        if (opt->eac3_mixing_metadata) {
+            if (s->channel_mode > AC3_CHMODE_STEREO)
+                frame_bits += 2;
+            if (s->has_center)
+                frame_bits += 6;
+            if (s->has_surround)
+                frame_bits += 6;
+            frame_bits += s->lfe_on;
+            frame_bits += 1 + 1 + 2;
+            if (s->channel_mode < AC3_CHMODE_STEREO)
+                frame_bits++;
+            frame_bits++;
+        }
+        if (opt->eac3_info_metadata) {
+            frame_bits += 3 + 1 + 1;
+            if (s->channel_mode == AC3_CHMODE_STEREO)
+                frame_bits += 2 + 2;
+            if (s->channel_mode >= AC3_CHMODE_2F2R)
+                frame_bits += 2;
+            frame_bits++;
+            if (opt->audio_production_info)
+                frame_bits += 5 + 2 + 1;
+            frame_bits++;
+        }
+        /* coupling */
+        if (s->channel_mode > AC3_CHMODE_MONO) {
+            frame_bits++;
+            for (blk = 1; blk < s->num_blocks; blk++) {
+                AC3Block *block = &s->blocks[blk];
+                frame_bits++;
+                if (block->new_cpl_strategy)
+                    frame_bits++;
+            }
+        }
+        /* coupling exponent strategy */
+        if (s->cpl_on) {
+            if (s->use_frame_exp_strategy) {
+                frame_bits += 5 * s->cpl_on;
+            } else {
+                for (blk = 0; blk < s->num_blocks; blk++)
+                    frame_bits += 2 * s->blocks[blk].cpl_in_use;
+            }
+        }
+    } else {
+        if (opt->audio_production_info)
+            frame_bits += 7;
+        if (s->bitstream_id == 6) {
+            if (opt->extended_bsi_1)
+                frame_bits += 14;
+            if (opt->extended_bsi_2)
+                frame_bits += 14;
+        }
+    }
+
+    /* audio blocks */
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+
+        /* coupling strategy */
+        if (!s->eac3)
+            frame_bits++;
+        if (block->new_cpl_strategy) {
+            if (!s->eac3)
+                frame_bits++;
+            if (block->cpl_in_use) {
+                if (s->eac3)
+                    frame_bits++;
+                if (!s->eac3 || s->channel_mode != AC3_CHMODE_STEREO)
+                    frame_bits += s->fbw_channels;
+                if (s->channel_mode == AC3_CHMODE_STEREO)
+                    frame_bits++;
+                frame_bits += 4 + 4;
+                if (s->eac3)
+                    frame_bits++;
+                else
+                    frame_bits += s->num_cpl_subbands - 1;
+            }
+        }
+
+        /* coupling coordinates */
+        if (block->cpl_in_use) {
+            for (ch = 1; ch <= s->fbw_channels; ch++) {
+                if (block->channel_in_cpl[ch]) {
+                    if (!s->eac3 || block->new_cpl_coords[ch] != 2)
+                        frame_bits++;
+                    if (block->new_cpl_coords[ch]) {
+                        frame_bits += 2;
+                        frame_bits += (4 + 4) * s->num_cpl_bands;
+                    }
+                }
+            }
+        }
+
+        /* stereo rematrixing */
+        if (s->channel_mode == AC3_CHMODE_STEREO) {
+            if (!s->eac3 || blk > 0)
+                frame_bits++;
+            if (s->blocks[blk].new_rematrixing_strategy)
+                frame_bits += block->num_rematrixing_bands;
+        }
+
+        /* bandwidth codes & gain range */
+        for (ch = 1; ch <= s->fbw_channels; ch++) {
+            if (s->exp_strategy[ch][blk] != EXP_REUSE) {
+                if (!block->channel_in_cpl[ch])
+                    frame_bits += 6;
+                frame_bits += 2;
+            }
+        }
+
+        /* coupling exponent strategy */
+        if (!s->eac3 && block->cpl_in_use)
+            frame_bits += 2;
+
+        /* snr offsets and fast gain codes */
+        if (!s->eac3) {
+            frame_bits++;
+            if (block->new_snr_offsets)
+                frame_bits += 6 + (s->channels + block->cpl_in_use) * (4 + 3);
+        }
+
+        /* coupling leak info */
+        if (block->cpl_in_use) {
+            if (!s->eac3 || block->new_cpl_leak != 2)
+                frame_bits++;
+            if (block->new_cpl_leak)
+                frame_bits += 3 + 3;
+        }
+    }
+
+    s->frame_bits = s->frame_bits_fixed + frame_bits;
+}
+
+
+/*
+ * Calculate masking curve based on the final exponents.
+ * Also calculate the power spectral densities to use in future calculations.
+ */
+static void bit_alloc_masking(AC3EncodeContext *s)
+{
+    int blk, ch;
+
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        for (ch = !block->cpl_in_use; ch <= s->channels; ch++) {
+            /* We only need psd and mask for calculating bap.
+               Since we currently do not calculate bap when exponent
+               strategy is EXP_REUSE we do not need to calculate psd or mask. */
+            if (s->exp_strategy[ch][blk] != EXP_REUSE) {
+                ff_ac3_bit_alloc_calc_psd(block->exp[ch], s->start_freq[ch],
+                                          block->end_freq[ch], block->psd[ch],
+                                          block->band_psd[ch]);
+                ff_ac3_bit_alloc_calc_mask(&s->bit_alloc, block->band_psd[ch],
+                                           s->start_freq[ch], block->end_freq[ch],
+                                           ff_ac3_fast_gain_tab[s->fast_gain_code[ch]],
+                                           ch == s->lfe_channel,
+                                           DBA_NONE, 0, NULL, NULL, NULL,
+                                           block->mask[ch]);
+            }
+        }
+    }
+}
+
+
+/*
+ * Ensure that bap for each block and channel point to the current bap_buffer.
+ * They may have been switched during the bit allocation search.
+ */
+static void reset_block_bap(AC3EncodeContext *s)
+{
+    int blk, ch;
+    uint8_t *ref_bap;
+
+    if (s->ref_bap[0][0] == s->bap_buffer && s->ref_bap_set)
+        return;
+
+    ref_bap = s->bap_buffer;
+    for (ch = 0; ch <= s->channels; ch++) {
+        for (blk = 0; blk < s->num_blocks; blk++)
+            s->ref_bap[ch][blk] = ref_bap + AC3_MAX_COEFS * s->exp_ref_block[ch][blk];
+        ref_bap += AC3_MAX_COEFS * s->num_blocks;
+    }
+    s->ref_bap_set = 1;
+}
+
+
+/**
+ * Initialize mantissa counts.
+ * These are set so that they are padded to the next whole group size when bits
+ * are counted in compute_mantissa_size.
+ *
+ * @param[in,out] mant_cnt  running counts for each bap value for each block
+ */
+static void count_mantissa_bits_init(uint16_t mant_cnt[AC3_MAX_BLOCKS][16])
+{
+    int blk;
+
+    for (blk = 0; blk < AC3_MAX_BLOCKS; blk++) {
+        memset(mant_cnt[blk], 0, sizeof(mant_cnt[blk]));
+        mant_cnt[blk][1] = mant_cnt[blk][2] = 2;
+        mant_cnt[blk][4] = 1;
+    }
+}
+
+
+/**
+ * Update mantissa bit counts for all blocks in 1 channel in a given bandwidth
+ * range.
+ *
+ * @param s                 AC-3 encoder private context
+ * @param ch                channel index
+ * @param[in,out] mant_cnt  running counts for each bap value for each block
+ * @param start             starting coefficient bin
+ * @param end               ending coefficient bin
+ */
+static void count_mantissa_bits_update_ch(AC3EncodeContext *s, int ch,
+                                          uint16_t mant_cnt[AC3_MAX_BLOCKS][16],
+                                          int start, int end)
+{
+    int blk;
+
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        if (ch == CPL_CH && !block->cpl_in_use)
+            continue;
+        s->ac3dsp.update_bap_counts(mant_cnt[blk],
+                                    s->ref_bap[ch][blk] + start,
+                                    FFMIN(end, block->end_freq[ch]) - start);
+    }
+}
+
+
+/*
+ * Count the number of mantissa bits in the frame based on the bap values.
+ */
+static int count_mantissa_bits(AC3EncodeContext *s)
+{
+    int ch, max_end_freq;
+    LOCAL_ALIGNED_16(uint16_t, mant_cnt, [AC3_MAX_BLOCKS], [16]);
+
+    count_mantissa_bits_init(mant_cnt);
+
+    max_end_freq = s->bandwidth_code * 3 + 73;
+    for (ch = !s->cpl_enabled; ch <= s->channels; ch++)
+        count_mantissa_bits_update_ch(s, ch, mant_cnt, s->start_freq[ch],
+                                      max_end_freq);
+
+    return s->ac3dsp.compute_mantissa_size(mant_cnt);
+}
+
+
+/**
+ * Run the bit allocation with a given SNR offset.
+ * This calculates the bit allocation pointers that will be used to determine
+ * the quantization of each mantissa.
+ *
+ * @param s           AC-3 encoder private context
+ * @param snr_offset  SNR offset, 0 to 1023
+ * @return the number of bits needed for mantissas if the given SNR offset is
+ *         is used.
+ */
+static int bit_alloc(AC3EncodeContext *s, int snr_offset)
+{
+    int blk, ch;
+
+    snr_offset = (snr_offset - 240) << 2;
+
+    reset_block_bap(s);
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+
+        for (ch = !block->cpl_in_use; ch <= s->channels; ch++) {
+            /* Currently the only bit allocation parameters which vary across
+               blocks within a frame are the exponent values.  We can take
+               advantage of that by reusing the bit allocation pointers
+               whenever we reuse exponents. */
+            if (s->exp_strategy[ch][blk] != EXP_REUSE) {
+                s->ac3dsp.bit_alloc_calc_bap(block->mask[ch], block->psd[ch],
+                                             s->start_freq[ch], block->end_freq[ch],
+                                             snr_offset, s->bit_alloc.floor,
+                                             ff_ac3_bap_tab, s->ref_bap[ch][blk]);
+            }
+        }
+    }
+    return count_mantissa_bits(s);
+}
+
+
+/*
+ * Constant bitrate bit allocation search.
+ * Find the largest SNR offset that will allow data to fit in the frame.
+ */
+static int cbr_bit_allocation(AC3EncodeContext *s)
+{
+    int ch;
+    int bits_left;
+    int snr_offset, snr_incr;
+
+    bits_left = 8 * s->frame_size - (s->frame_bits + s->exponent_bits);
+    if (bits_left < 0)
+        return AVERROR(EINVAL);
+
+    snr_offset = s->coarse_snr_offset << 4;
+
+    /* if previous frame SNR offset was 1023, check if current frame can also
+       use SNR offset of 1023. if so, skip the search. */
+    if ((snr_offset | s->fine_snr_offset[1]) == 1023) {
+        if (bit_alloc(s, 1023) <= bits_left)
+            return 0;
+    }
+
+    while (snr_offset >= 0 &&
+           bit_alloc(s, snr_offset) > bits_left) {
+        snr_offset -= 64;
+    }
+    if (snr_offset < 0)
+        return AVERROR(EINVAL);
+
+    FFSWAP(uint8_t *, s->bap_buffer, s->bap1_buffer);
+    for (snr_incr = 64; snr_incr > 0; snr_incr >>= 2) {
+        while (snr_offset + snr_incr <= 1023 &&
+               bit_alloc(s, snr_offset + snr_incr) <= bits_left) {
+            snr_offset += snr_incr;
+            FFSWAP(uint8_t *, s->bap_buffer, s->bap1_buffer);
+        }
+    }
+    FFSWAP(uint8_t *, s->bap_buffer, s->bap1_buffer);
+    reset_block_bap(s);
+
+    s->coarse_snr_offset = snr_offset >> 4;
+    for (ch = !s->cpl_on; ch <= s->channels; ch++)
+        s->fine_snr_offset[ch] = snr_offset & 0xF;
+
+    return 0;
+}
+
+
+/*
+ * Perform bit allocation search.
+ * Finds the SNR offset value that maximizes quality and fits in the specified
+ * frame size.  Output is the SNR offset and a set of bit allocation pointers
+ * used to quantize the mantissas.
+ */
+int ff_ac3_compute_bit_allocation(AC3EncodeContext *s)
+{
+    count_frame_bits(s);
+
+    s->exponent_bits = count_exponent_bits(s);
+
+    bit_alloc_masking(s);
+
+    return cbr_bit_allocation(s);
+}
+
+
+/**
+ * Symmetric quantization on 'levels' levels.
+ *
+ * @param c       unquantized coefficient
+ * @param e       exponent
+ * @param levels  number of quantization levels
+ * @return        quantized coefficient
+ */
+static inline int sym_quant(int c, int e, int levels)
+{
+    int v = (((levels * c) >> (24 - e)) + levels) >> 1;
+    av_assert2(v >= 0 && v < levels);
+    return v;
+}
+
+
+/**
+ * Asymmetric quantization on 2^qbits levels.
+ *
+ * @param c      unquantized coefficient
+ * @param e      exponent
+ * @param qbits  number of quantization bits
+ * @return       quantized coefficient
+ */
+static inline int asym_quant(int c, int e, int qbits)
+{
+    int m;
+
+    c = (((c * (1<<e)) >> (24 - qbits)) + 1) >> 1;
+    m = (1 << (qbits-1));
+    if (c >= m)
+        c = m - 1;
+    av_assert2(c >= -m);
+    return c;
+}
+
+
+/**
+ * Quantize a set of mantissas for a single channel in a single block.
+ *
+ * @param s           Mantissa count context
+ * @param fixed_coef  unquantized fixed-point coefficients
+ * @param exp         exponents
+ * @param bap         bit allocation pointer indices
+ * @param[out] qmant  quantized coefficients
+ * @param start_freq  starting coefficient bin
+ * @param end_freq    ending coefficient bin
+ */
+static void quantize_mantissas_blk_ch(AC3Mant *s, int32_t *fixed_coef,
+                                      uint8_t *exp, uint8_t *bap,
+                                      int16_t *qmant, int start_freq,
+                                      int end_freq)
+{
+    int i;
+
+    for (i = start_freq; i < end_freq; i++) {
+        int c = fixed_coef[i];
+        int e = exp[i];
+        int v = bap[i];
+        if (v)
+        switch (v) {
+        case 1:
+            v = sym_quant(c, e, 3);
+            switch (s->mant1_cnt) {
+            case 0:
+                s->qmant1_ptr = &qmant[i];
+                v = 9 * v;
+                s->mant1_cnt = 1;
+                break;
+            case 1:
+                *s->qmant1_ptr += 3 * v;
+                s->mant1_cnt = 2;
+                v = 128;
+                break;
+            default:
+                *s->qmant1_ptr += v;
+                s->mant1_cnt = 0;
+                v = 128;
+                break;
+            }
+            break;
+        case 2:
+            v = sym_quant(c, e, 5);
+            switch (s->mant2_cnt) {
+            case 0:
+                s->qmant2_ptr = &qmant[i];
+                v = 25 * v;
+                s->mant2_cnt = 1;
+                break;
+            case 1:
+                *s->qmant2_ptr += 5 * v;
+                s->mant2_cnt = 2;
+                v = 128;
+                break;
+            default:
+                *s->qmant2_ptr += v;
+                s->mant2_cnt = 0;
+                v = 128;
+                break;
+            }
+            break;
+        case 3:
+            v = sym_quant(c, e, 7);
+            break;
+        case 4:
+            v = sym_quant(c, e, 11);
+            switch (s->mant4_cnt) {
+            case 0:
+                s->qmant4_ptr = &qmant[i];
+                v = 11 * v;
+                s->mant4_cnt = 1;
+                break;
+            default:
+                *s->qmant4_ptr += v;
+                s->mant4_cnt = 0;
+                v = 128;
+                break;
+            }
+            break;
+        case 5:
+            v = sym_quant(c, e, 15);
+            break;
+        case 14:
+            v = asym_quant(c, e, 14);
+            break;
+        case 15:
+            v = asym_quant(c, e, 16);
+            break;
+        default:
+            v = asym_quant(c, e, v - 1);
+            break;
+        }
+        qmant[i] = v;
+    }
+}
+
+
+/**
+ * Quantize mantissas using coefficients, exponents, and bit allocation pointers.
+ *
+ * @param s  AC-3 encoder private context
+ */
+void ff_ac3_quantize_mantissas(AC3EncodeContext *s)
+{
+    int blk, ch, ch0=0, got_cpl;
+
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        AC3Mant m = { 0 };
+
+        got_cpl = !block->cpl_in_use;
+        for (ch = 1; ch <= s->channels; ch++) {
+            if (!got_cpl && ch > 1 && block->channel_in_cpl[ch-1]) {
+                ch0     = ch - 1;
+                ch      = CPL_CH;
+                got_cpl = 1;
+            }
+            quantize_mantissas_blk_ch(&m, block->fixed_coef[ch],
+                                      s->blocks[s->exp_ref_block[ch][blk]].exp[ch],
+                                      s->ref_bap[ch][blk], block->qmant[ch],
+                                      s->start_freq[ch], block->end_freq[ch]);
+            if (ch == CPL_CH)
+                ch = ch0;
+        }
+    }
+}
+
+
+/*
+ * Write the AC-3 frame header to the output bitstream.
+ */
+static void ac3_output_frame_header(AC3EncodeContext *s)
+{
+    AC3EncOptions *opt = &s->options;
+
+    put_bits(&s->pb, 16, 0x0b77);   /* frame header */
+    put_bits(&s->pb, 16, 0);        /* crc1: will be filled later */
+    put_bits(&s->pb, 2,  s->bit_alloc.sr_code);
+    put_bits(&s->pb, 6,  s->frame_size_code + (s->frame_size - s->frame_size_min) / 2);
+    put_bits(&s->pb, 5,  s->bitstream_id);
+    put_bits(&s->pb, 3,  s->bitstream_mode);
+    put_bits(&s->pb, 3,  s->channel_mode);
+    if ((s->channel_mode & 0x01) && s->channel_mode != AC3_CHMODE_MONO)
+        put_bits(&s->pb, 2, s->center_mix_level);
+    if (s->channel_mode & 0x04)
+        put_bits(&s->pb, 2, s->surround_mix_level);
+    if (s->channel_mode == AC3_CHMODE_STEREO)
+        put_bits(&s->pb, 2, opt->dolby_surround_mode);
+    put_bits(&s->pb, 1, s->lfe_on); /* LFE */
+    put_bits(&s->pb, 5, -opt->dialogue_level);
+    put_bits(&s->pb, 1, 0);         /* no compression control word */
+    put_bits(&s->pb, 1, 0);         /* no lang code */
+    put_bits(&s->pb, 1, opt->audio_production_info);
+    if (opt->audio_production_info) {
+        put_bits(&s->pb, 5, opt->mixing_level - 80);
+        put_bits(&s->pb, 2, opt->room_type);
+    }
+    put_bits(&s->pb, 1, opt->copyright);
+    put_bits(&s->pb, 1, opt->original);
+    if (s->bitstream_id == 6) {
+        /* alternate bit stream syntax */
+        put_bits(&s->pb, 1, opt->extended_bsi_1);
+        if (opt->extended_bsi_1) {
+            put_bits(&s->pb, 2, opt->preferred_stereo_downmix);
+            put_bits(&s->pb, 3, s->ltrt_center_mix_level);
+            put_bits(&s->pb, 3, s->ltrt_surround_mix_level);
+            put_bits(&s->pb, 3, s->loro_center_mix_level);
+            put_bits(&s->pb, 3, s->loro_surround_mix_level);
+        }
+        put_bits(&s->pb, 1, opt->extended_bsi_2);
+        if (opt->extended_bsi_2) {
+            put_bits(&s->pb, 2, opt->dolby_surround_ex_mode);
+            put_bits(&s->pb, 2, opt->dolby_headphone_mode);
+            put_bits(&s->pb, 1, opt->ad_converter_type);
+            put_bits(&s->pb, 9, 0);     /* xbsi2 and encinfo : reserved */
+        }
+    } else {
+    put_bits(&s->pb, 1, 0);         /* no time code 1 */
+    put_bits(&s->pb, 1, 0);         /* no time code 2 */
+    }
+    put_bits(&s->pb, 1, 0);         /* no additional bit stream info */
+}
+
+
+/*
+ * Write one audio block to the output bitstream.
+ */
+static void output_audio_block(AC3EncodeContext *s, int blk)
+{
+    int ch, i, baie, bnd, got_cpl, av_uninit(ch0);
+    AC3Block *block = &s->blocks[blk];
+
+    /* block switching */
+    if (!s->eac3) {
+        for (ch = 0; ch < s->fbw_channels; ch++)
+            put_bits(&s->pb, 1, 0);
+    }
+
+    /* dither flags */
+    if (!s->eac3) {
+        for (ch = 0; ch < s->fbw_channels; ch++)
+            put_bits(&s->pb, 1, 1);
+    }
+
+    /* dynamic range codes */
+    put_bits(&s->pb, 1, 0);
+
+    /* spectral extension */
+    if (s->eac3)
+        put_bits(&s->pb, 1, 0);
+
+    /* channel coupling */
+    if (!s->eac3)
+        put_bits(&s->pb, 1, block->new_cpl_strategy);
+    if (block->new_cpl_strategy) {
+        if (!s->eac3)
+            put_bits(&s->pb, 1, block->cpl_in_use);
+        if (block->cpl_in_use) {
+            int start_sub, end_sub;
+            if (s->eac3)
+                put_bits(&s->pb, 1, 0); /* enhanced coupling */
+            if (!s->eac3 || s->channel_mode != AC3_CHMODE_STEREO) {
+                for (ch = 1; ch <= s->fbw_channels; ch++)
+                    put_bits(&s->pb, 1, block->channel_in_cpl[ch]);
+            }
+            if (s->channel_mode == AC3_CHMODE_STEREO)
+                put_bits(&s->pb, 1, 0); /* phase flags in use */
+            start_sub = (s->start_freq[CPL_CH] - 37) / 12;
+            end_sub   = (s->cpl_end_freq       - 37) / 12;
+            put_bits(&s->pb, 4, start_sub);
+            put_bits(&s->pb, 4, end_sub - 3);
+            /* coupling band structure */
+            if (s->eac3) {
+                put_bits(&s->pb, 1, 0); /* use default */
+            } else {
+                for (bnd = start_sub+1; bnd < end_sub; bnd++)
+                    put_bits(&s->pb, 1, ff_eac3_default_cpl_band_struct[bnd]);
+            }
+        }
+    }
+
+    /* coupling coordinates */
+    if (block->cpl_in_use) {
+        for (ch = 1; ch <= s->fbw_channels; ch++) {
+            if (block->channel_in_cpl[ch]) {
+                if (!s->eac3 || block->new_cpl_coords[ch] != 2)
+                    put_bits(&s->pb, 1, block->new_cpl_coords[ch]);
+                if (block->new_cpl_coords[ch]) {
+                    put_bits(&s->pb, 2, block->cpl_master_exp[ch]);
+                    for (bnd = 0; bnd < s->num_cpl_bands; bnd++) {
+                        put_bits(&s->pb, 4, block->cpl_coord_exp [ch][bnd]);
+                        put_bits(&s->pb, 4, block->cpl_coord_mant[ch][bnd]);
+                    }
+                }
+            }
+        }
+    }
+
+    /* stereo rematrixing */
+    if (s->channel_mode == AC3_CHMODE_STEREO) {
+        if (!s->eac3 || blk > 0)
+            put_bits(&s->pb, 1, block->new_rematrixing_strategy);
+        if (block->new_rematrixing_strategy) {
+            /* rematrixing flags */
+            for (bnd = 0; bnd < block->num_rematrixing_bands; bnd++)
+                put_bits(&s->pb, 1, block->rematrixing_flags[bnd]);
+        }
+    }
+
+    /* exponent strategy */
+    if (!s->eac3) {
+        for (ch = !block->cpl_in_use; ch <= s->fbw_channels; ch++)
+            put_bits(&s->pb, 2, s->exp_strategy[ch][blk]);
+        if (s->lfe_on)
+            put_bits(&s->pb, 1, s->exp_strategy[s->lfe_channel][blk]);
+    }
+
+    /* bandwidth */
+    for (ch = 1; ch <= s->fbw_channels; ch++) {
+        if (s->exp_strategy[ch][blk] != EXP_REUSE && !block->channel_in_cpl[ch])
+            put_bits(&s->pb, 6, s->bandwidth_code);
+    }
+
+    /* exponents */
+    for (ch = !block->cpl_in_use; ch <= s->channels; ch++) {
+        int nb_groups;
+        int cpl = (ch == CPL_CH);
+
+        if (s->exp_strategy[ch][blk] == EXP_REUSE)
+            continue;
+
+        /* DC exponent */
+        put_bits(&s->pb, 4, block->grouped_exp[ch][0] >> cpl);
+
+        /* exponent groups */
+        nb_groups = exponent_group_tab[cpl][s->exp_strategy[ch][blk]-1][block->end_freq[ch]-s->start_freq[ch]];
+        for (i = 1; i <= nb_groups; i++)
+            put_bits(&s->pb, 7, block->grouped_exp[ch][i]);
+
+        /* gain range info */
+        if (ch != s->lfe_channel && !cpl)
+            put_bits(&s->pb, 2, 0);
+    }
+
+    /* bit allocation info */
+    if (!s->eac3) {
+        baie = (blk == 0);
+        put_bits(&s->pb, 1, baie);
+        if (baie) {
+            put_bits(&s->pb, 2, s->slow_decay_code);
+            put_bits(&s->pb, 2, s->fast_decay_code);
+            put_bits(&s->pb, 2, s->slow_gain_code);
+            put_bits(&s->pb, 2, s->db_per_bit_code);
+            put_bits(&s->pb, 3, s->floor_code);
+        }
+    }
+
+    /* snr offset */
+    if (!s->eac3) {
+        put_bits(&s->pb, 1, block->new_snr_offsets);
+        if (block->new_snr_offsets) {
+            put_bits(&s->pb, 6, s->coarse_snr_offset);
+            for (ch = !block->cpl_in_use; ch <= s->channels; ch++) {
+                put_bits(&s->pb, 4, s->fine_snr_offset[ch]);
+                put_bits(&s->pb, 3, s->fast_gain_code[ch]);
+            }
+        }
+    } else {
+        put_bits(&s->pb, 1, 0); /* no converter snr offset */
+    }
+
+    /* coupling leak */
+    if (block->cpl_in_use) {
+        if (!s->eac3 || block->new_cpl_leak != 2)
+            put_bits(&s->pb, 1, block->new_cpl_leak);
+        if (block->new_cpl_leak) {
+            put_bits(&s->pb, 3, s->bit_alloc.cpl_fast_leak);
+            put_bits(&s->pb, 3, s->bit_alloc.cpl_slow_leak);
+        }
+    }
+
+    if (!s->eac3) {
+        put_bits(&s->pb, 1, 0); /* no delta bit allocation */
+        put_bits(&s->pb, 1, 0); /* no data to skip */
+    }
+
+    /* mantissas */
+    got_cpl = !block->cpl_in_use;
+    for (ch = 1; ch <= s->channels; ch++) {
+        int b, q;
+
+        if (!got_cpl && ch > 1 && block->channel_in_cpl[ch-1]) {
+            ch0     = ch - 1;
+            ch      = CPL_CH;
+            got_cpl = 1;
+        }
+        for (i = s->start_freq[ch]; i < block->end_freq[ch]; i++) {
+            q = block->qmant[ch][i];
+            b = s->ref_bap[ch][blk][i];
+            switch (b) {
+            case 0:                                          break;
+            case 1: if (q != 128) put_bits (&s->pb,   5, q); break;
+            case 2: if (q != 128) put_bits (&s->pb,   7, q); break;
+            case 3:               put_sbits(&s->pb,   3, q); break;
+            case 4: if (q != 128) put_bits (&s->pb,   7, q); break;
+            case 14:              put_sbits(&s->pb,  14, q); break;
+            case 15:              put_sbits(&s->pb,  16, q); break;
+            default:              put_sbits(&s->pb, b-1, q); break;
+            }
+        }
+        if (ch == CPL_CH)
+            ch = ch0;
+    }
+}
+
+
+/** CRC-16 Polynomial */
+#define CRC16_POLY ((1 << 0) | (1 << 2) | (1 << 15) | (1 << 16))
+
+
+static unsigned int mul_poly(unsigned int a, unsigned int b, unsigned int poly)
+{
+    unsigned int c;
+
+    c = 0;
+    while (a) {
+        if (a & 1)
+            c ^= b;
+        a = a >> 1;
+        b = b << 1;
+        if (b & (1 << 16))
+            b ^= poly;
+    }
+    return c;
+}
+
+
+static unsigned int pow_poly(unsigned int a, unsigned int n, unsigned int poly)
+{
+    unsigned int r;
+    r = 1;
+    while (n) {
+        if (n & 1)
+            r = mul_poly(r, a, poly);
+        a = mul_poly(a, a, poly);
+        n >>= 1;
+    }
+    return r;
+}
+
+
+/*
+ * Fill the end of the frame with 0's and compute the two CRCs.
+ */
+static void output_frame_end(AC3EncodeContext *s)
+{
+    const AVCRC *crc_ctx = av_crc_get_table(AV_CRC_16_ANSI);
+    int frame_size_58, pad_bytes, crc1, crc2_partial, crc2, crc_inv;
+    uint8_t *frame;
+
+    frame_size_58 = ((s->frame_size >> 2) + (s->frame_size >> 4)) << 1;
+
+    /* pad the remainder of the frame with zeros */
+    av_assert2(s->frame_size * 8 - put_bits_count(&s->pb) >= 18);
+    flush_put_bits(&s->pb);
+    frame = s->pb.buf;
+    pad_bytes = s->frame_size - (put_bits_ptr(&s->pb) - frame) - 2;
+    av_assert2(pad_bytes >= 0);
+    if (pad_bytes > 0)
+        memset(put_bits_ptr(&s->pb), 0, pad_bytes);
+
+    if (s->eac3) {
+        /* compute crc2 */
+        crc2_partial = av_crc(crc_ctx, 0, frame + 2, s->frame_size - 5);
+    } else {
+    /* compute crc1 */
+    /* this is not so easy because it is at the beginning of the data... */
+    crc1    = av_bswap16(av_crc(crc_ctx, 0, frame + 4, frame_size_58 - 4));
+    crc_inv = s->crc_inv[s->frame_size > s->frame_size_min];
+    crc1    = mul_poly(crc_inv, crc1, CRC16_POLY);
+    AV_WB16(frame + 2, crc1);
+
+    /* compute crc2 */
+    crc2_partial = av_crc(crc_ctx, 0, frame + frame_size_58,
+                          s->frame_size - frame_size_58 - 3);
+    }
+    crc2 = av_crc(crc_ctx, crc2_partial, frame + s->frame_size - 3, 1);
+    /* ensure crc2 does not match sync word by flipping crcrsv bit if needed */
+    if (crc2 == 0x770B) {
+        frame[s->frame_size - 3] ^= 0x1;
+        crc2 = av_crc(crc_ctx, crc2_partial, frame + s->frame_size - 3, 1);
+    }
+    crc2 = av_bswap16(crc2);
+    AV_WB16(frame + s->frame_size - 2, crc2);
+}
+
+
+/**
+ * Write the frame to the output bitstream.
+ *
+ * @param s      AC-3 encoder private context
+ * @param frame  output data buffer
+ */
+void ff_ac3_output_frame(AC3EncodeContext *s, unsigned char *frame)
+{
+    int blk;
+
+    init_put_bits(&s->pb, frame, AC3_MAX_CODED_FRAME_SIZE);
+
+    s->output_frame_header(s);
+
+    for (blk = 0; blk < s->num_blocks; blk++)
+        output_audio_block(s, blk);
+
+    output_frame_end(s);
+}
+
+
+static void dprint_options(AC3EncodeContext *s)
+{
+#ifdef DEBUG
+    AVCodecContext *avctx = s->avctx;
+    AC3EncOptions *opt = &s->options;
+    char strbuf[32];
+
+    switch (s->bitstream_id) {
+    case  6:  av_strlcpy(strbuf, "AC-3 (alt syntax)",       32); break;
+    case  8:  av_strlcpy(strbuf, "AC-3 (standard)",         32); break;
+    case  9:  av_strlcpy(strbuf, "AC-3 (dnet half-rate)",   32); break;
+    case 10:  av_strlcpy(strbuf, "AC-3 (dnet quater-rate)", 32); break;
+    case 16:  av_strlcpy(strbuf, "E-AC-3 (enhanced)",       32); break;
+    default: snprintf(strbuf, 32, "ERROR");
+    }
+    ff_dlog(avctx, "bitstream_id: %s (%d)\n", strbuf, s->bitstream_id);
+    ff_dlog(avctx, "sample_fmt: %s\n", av_get_sample_fmt_name(avctx->sample_fmt));
+    av_get_channel_layout_string(strbuf, 32, s->channels, avctx->channel_layout);
+    ff_dlog(avctx, "channel_layout: %s\n", strbuf);
+    ff_dlog(avctx, "sample_rate: %d\n", s->sample_rate);
+    ff_dlog(avctx, "bit_rate: %d\n", s->bit_rate);
+    ff_dlog(avctx, "blocks/frame: %d (code=%d)\n", s->num_blocks, s->num_blks_code);
+    if (s->cutoff)
+        ff_dlog(avctx, "cutoff: %d\n", s->cutoff);
+
+    ff_dlog(avctx, "per_frame_metadata: %s\n",
+            opt->allow_per_frame_metadata?"on":"off");
+    if (s->has_center)
+        ff_dlog(avctx, "center_mixlev: %0.3f (%d)\n", opt->center_mix_level,
+                s->center_mix_level);
+    else
+        ff_dlog(avctx, "center_mixlev: {not written}\n");
+    if (s->has_surround)
+        ff_dlog(avctx, "surround_mixlev: %0.3f (%d)\n", opt->surround_mix_level,
+                s->surround_mix_level);
+    else
+        ff_dlog(avctx, "surround_mixlev: {not written}\n");
+    if (opt->audio_production_info) {
+        ff_dlog(avctx, "mixing_level: %ddB\n", opt->mixing_level);
+        switch (opt->room_type) {
+        case AC3ENC_OPT_NOT_INDICATED: av_strlcpy(strbuf, "notindicated", 32); break;
+        case AC3ENC_OPT_LARGE_ROOM:    av_strlcpy(strbuf, "large", 32);        break;
+        case AC3ENC_OPT_SMALL_ROOM:    av_strlcpy(strbuf, "small", 32);        break;
+        default: snprintf(strbuf, 32, "ERROR (%d)", opt->room_type);
+        }
+        ff_dlog(avctx, "room_type: %s\n", strbuf);
+    } else {
+        ff_dlog(avctx, "mixing_level: {not written}\n");
+        ff_dlog(avctx, "room_type: {not written}\n");
+    }
+    ff_dlog(avctx, "copyright: %s\n", opt->copyright?"on":"off");
+    ff_dlog(avctx, "dialnorm: %ddB\n", opt->dialogue_level);
+    if (s->channel_mode == AC3_CHMODE_STEREO) {
+        switch (opt->dolby_surround_mode) {
+        case AC3ENC_OPT_NOT_INDICATED: av_strlcpy(strbuf, "notindicated", 32); break;
+        case AC3ENC_OPT_MODE_ON:       av_strlcpy(strbuf, "on", 32);           break;
+        case AC3ENC_OPT_MODE_OFF:      av_strlcpy(strbuf, "off", 32);          break;
+        default: snprintf(strbuf, 32, "ERROR (%d)", opt->dolby_surround_mode);
+        }
+        ff_dlog(avctx, "dsur_mode: %s\n", strbuf);
+    } else {
+        ff_dlog(avctx, "dsur_mode: {not written}\n");
+    }
+    ff_dlog(avctx, "original: %s\n", opt->original?"on":"off");
+
+    if (s->bitstream_id == 6) {
+        if (opt->extended_bsi_1) {
+            switch (opt->preferred_stereo_downmix) {
+            case AC3ENC_OPT_NOT_INDICATED: av_strlcpy(strbuf, "notindicated", 32); break;
+            case AC3ENC_OPT_DOWNMIX_LTRT:  av_strlcpy(strbuf, "ltrt", 32);         break;
+            case AC3ENC_OPT_DOWNMIX_LORO:  av_strlcpy(strbuf, "loro", 32);         break;
+            default: snprintf(strbuf, 32, "ERROR (%d)", opt->preferred_stereo_downmix);
+            }
+            ff_dlog(avctx, "dmix_mode: %s\n", strbuf);
+            ff_dlog(avctx, "ltrt_cmixlev: %0.3f (%d)\n",
+                    opt->ltrt_center_mix_level, s->ltrt_center_mix_level);
+            ff_dlog(avctx, "ltrt_surmixlev: %0.3f (%d)\n",
+                    opt->ltrt_surround_mix_level, s->ltrt_surround_mix_level);
+            ff_dlog(avctx, "loro_cmixlev: %0.3f (%d)\n",
+                    opt->loro_center_mix_level, s->loro_center_mix_level);
+            ff_dlog(avctx, "loro_surmixlev: %0.3f (%d)\n",
+                    opt->loro_surround_mix_level, s->loro_surround_mix_level);
+        } else {
+            ff_dlog(avctx, "extended bitstream info 1: {not written}\n");
+        }
+        if (opt->extended_bsi_2) {
+            switch (opt->dolby_surround_ex_mode) {
+            case AC3ENC_OPT_NOT_INDICATED: av_strlcpy(strbuf, "notindicated", 32); break;
+            case AC3ENC_OPT_MODE_ON:       av_strlcpy(strbuf, "on", 32);           break;
+            case AC3ENC_OPT_MODE_OFF:      av_strlcpy(strbuf, "off", 32);          break;
+            default: snprintf(strbuf, 32, "ERROR (%d)", opt->dolby_surround_ex_mode);
+            }
+            ff_dlog(avctx, "dsurex_mode: %s\n", strbuf);
+            switch (opt->dolby_headphone_mode) {
+            case AC3ENC_OPT_NOT_INDICATED: av_strlcpy(strbuf, "notindicated", 32); break;
+            case AC3ENC_OPT_MODE_ON:       av_strlcpy(strbuf, "on", 32);           break;
+            case AC3ENC_OPT_MODE_OFF:      av_strlcpy(strbuf, "off", 32);          break;
+            default: snprintf(strbuf, 32, "ERROR (%d)", opt->dolby_headphone_mode);
+            }
+            ff_dlog(avctx, "dheadphone_mode: %s\n", strbuf);
+
+            switch (opt->ad_converter_type) {
+            case AC3ENC_OPT_ADCONV_STANDARD: av_strlcpy(strbuf, "standard", 32); break;
+            case AC3ENC_OPT_ADCONV_HDCD:     av_strlcpy(strbuf, "hdcd", 32);     break;
+            default: snprintf(strbuf, 32, "ERROR (%d)", opt->ad_converter_type);
+            }
+            ff_dlog(avctx, "ad_conv_type: %s\n", strbuf);
+        } else {
+            ff_dlog(avctx, "extended bitstream info 2: {not written}\n");
+        }
+    }
+#endif
+}
+
+
+#define FLT_OPTION_THRESHOLD 0.01
+
+static int validate_float_option(float v, const float *v_list, int v_list_size)
+{
+    int i;
+
+    for (i = 0; i < v_list_size; i++) {
+        if (v < (v_list[i] + FLT_OPTION_THRESHOLD) &&
+            v > (v_list[i] - FLT_OPTION_THRESHOLD))
+            break;
+    }
+    if (i == v_list_size)
+        return AVERROR(EINVAL);
+
+    return i;
+}
+
+
+static void validate_mix_level(void *log_ctx, const char *opt_name,
+                               float *opt_param, const float *list,
+                               int list_size, int default_value, int min_value,
+                               int *ctx_param)
+{
+    int mixlev = validate_float_option(*opt_param, list, list_size);
+    if (mixlev < min_value) {
+        mixlev = default_value;
+        if (*opt_param >= 0.0) {
+            av_log(log_ctx, AV_LOG_WARNING, "requested %s is not valid. using "
+                   "default value: %0.3f\n", opt_name, list[mixlev]);
+        }
+    }
+    *opt_param = list[mixlev];
+    *ctx_param = mixlev;
+}
+
+
+/**
+ * Validate metadata options as set by AVOption system.
+ * These values can optionally be changed per-frame.
+ *
+ * @param s  AC-3 encoder private context
+ */
+int ff_ac3_validate_metadata(AC3EncodeContext *s)
+{
+    AVCodecContext *avctx = s->avctx;
+    AC3EncOptions *opt = &s->options;
+
+    opt->audio_production_info = 0;
+    opt->extended_bsi_1        = 0;
+    opt->extended_bsi_2        = 0;
+    opt->eac3_mixing_metadata  = 0;
+    opt->eac3_info_metadata    = 0;
+
+    /* determine mixing metadata / xbsi1 use */
+    if (s->channel_mode > AC3_CHMODE_STEREO && opt->preferred_stereo_downmix != AC3ENC_OPT_NONE) {
+        opt->extended_bsi_1       = 1;
+        opt->eac3_mixing_metadata = 1;
+    }
+    if (s->has_center &&
+        (opt->ltrt_center_mix_level >= 0 || opt->loro_center_mix_level >= 0)) {
+        opt->extended_bsi_1       = 1;
+        opt->eac3_mixing_metadata = 1;
+    }
+    if (s->has_surround &&
+        (opt->ltrt_surround_mix_level >= 0 || opt->loro_surround_mix_level >= 0)) {
+        opt->extended_bsi_1       = 1;
+        opt->eac3_mixing_metadata = 1;
+    }
+
+    if (s->eac3) {
+        /* determine info metadata use */
+        if (avctx->audio_service_type != AV_AUDIO_SERVICE_TYPE_MAIN)
+            opt->eac3_info_metadata = 1;
+        if (opt->copyright != AC3ENC_OPT_NONE || opt->original != AC3ENC_OPT_NONE)
+            opt->eac3_info_metadata = 1;
+        if (s->channel_mode == AC3_CHMODE_STEREO &&
+            (opt->dolby_headphone_mode != AC3ENC_OPT_NONE || opt->dolby_surround_mode != AC3ENC_OPT_NONE))
+            opt->eac3_info_metadata = 1;
+        if (s->channel_mode >= AC3_CHMODE_2F2R && opt->dolby_surround_ex_mode != AC3ENC_OPT_NONE)
+            opt->eac3_info_metadata = 1;
+        if (opt->mixing_level != AC3ENC_OPT_NONE || opt->room_type != AC3ENC_OPT_NONE ||
+            opt->ad_converter_type != AC3ENC_OPT_NONE) {
+            opt->audio_production_info = 1;
+            opt->eac3_info_metadata    = 1;
+        }
+    } else {
+        /* determine audio production info use */
+        if (opt->mixing_level != AC3ENC_OPT_NONE || opt->room_type != AC3ENC_OPT_NONE)
+            opt->audio_production_info = 1;
+
+        /* determine xbsi2 use */
+        if (s->channel_mode >= AC3_CHMODE_2F2R && opt->dolby_surround_ex_mode != AC3ENC_OPT_NONE)
+            opt->extended_bsi_2 = 1;
+        if (s->channel_mode == AC3_CHMODE_STEREO && opt->dolby_headphone_mode != AC3ENC_OPT_NONE)
+            opt->extended_bsi_2 = 1;
+        if (opt->ad_converter_type != AC3ENC_OPT_NONE)
+            opt->extended_bsi_2 = 1;
+    }
+
+    /* validate AC-3 mixing levels */
+    if (!s->eac3) {
+        if (s->has_center) {
+            validate_mix_level(avctx, "center_mix_level", &opt->center_mix_level,
+                            cmixlev_options, CMIXLEV_NUM_OPTIONS, 1, 0,
+                            &s->center_mix_level);
+        }
+        if (s->has_surround) {
+            validate_mix_level(avctx, "surround_mix_level", &opt->surround_mix_level,
+                            surmixlev_options, SURMIXLEV_NUM_OPTIONS, 1, 0,
+                            &s->surround_mix_level);
+        }
+    }
+
+    /* validate extended bsi 1 / mixing metadata */
+    if (opt->extended_bsi_1 || opt->eac3_mixing_metadata) {
+        /* default preferred stereo downmix */
+        if (opt->preferred_stereo_downmix == AC3ENC_OPT_NONE)
+            opt->preferred_stereo_downmix = AC3ENC_OPT_NOT_INDICATED;
+        if (!s->eac3 || s->has_center) {
+            /* validate Lt/Rt center mix level */
+            validate_mix_level(avctx, "ltrt_center_mix_level",
+                               &opt->ltrt_center_mix_level, extmixlev_options,
+                               EXTMIXLEV_NUM_OPTIONS, 5, 0,
+                               &s->ltrt_center_mix_level);
+            /* validate Lo/Ro center mix level */
+            validate_mix_level(avctx, "loro_center_mix_level",
+                               &opt->loro_center_mix_level, extmixlev_options,
+                               EXTMIXLEV_NUM_OPTIONS, 5, 0,
+                               &s->loro_center_mix_level);
+        }
+        if (!s->eac3 || s->has_surround) {
+            /* validate Lt/Rt surround mix level */
+            validate_mix_level(avctx, "ltrt_surround_mix_level",
+                               &opt->ltrt_surround_mix_level, extmixlev_options,
+                               EXTMIXLEV_NUM_OPTIONS, 6, 3,
+                               &s->ltrt_surround_mix_level);
+            /* validate Lo/Ro surround mix level */
+            validate_mix_level(avctx, "loro_surround_mix_level",
+                               &opt->loro_surround_mix_level, extmixlev_options,
+                               EXTMIXLEV_NUM_OPTIONS, 6, 3,
+                               &s->loro_surround_mix_level);
+        }
+    }
+
+    /* validate audio service type / channels combination */
+    if ((avctx->audio_service_type == AV_AUDIO_SERVICE_TYPE_KARAOKE &&
+         avctx->channels == 1) ||
+        ((avctx->audio_service_type == AV_AUDIO_SERVICE_TYPE_COMMENTARY ||
+          avctx->audio_service_type == AV_AUDIO_SERVICE_TYPE_EMERGENCY  ||
+          avctx->audio_service_type == AV_AUDIO_SERVICE_TYPE_VOICE_OVER)
+         && avctx->channels > 1)) {
+        av_log(avctx, AV_LOG_ERROR, "invalid audio service type for the "
+                                    "specified number of channels\n");
+        return AVERROR(EINVAL);
+    }
+
+    /* validate extended bsi 2 / info metadata */
+    if (opt->extended_bsi_2 || opt->eac3_info_metadata) {
+        /* default dolby headphone mode */
+        if (opt->dolby_headphone_mode == AC3ENC_OPT_NONE)
+            opt->dolby_headphone_mode = AC3ENC_OPT_NOT_INDICATED;
+        /* default dolby surround ex mode */
+        if (opt->dolby_surround_ex_mode == AC3ENC_OPT_NONE)
+            opt->dolby_surround_ex_mode = AC3ENC_OPT_NOT_INDICATED;
+        /* default A/D converter type */
+        if (opt->ad_converter_type == AC3ENC_OPT_NONE)
+            opt->ad_converter_type = AC3ENC_OPT_ADCONV_STANDARD;
+    }
+
+    /* copyright & original defaults */
+    if (!s->eac3 || opt->eac3_info_metadata) {
+        /* default copyright */
+        if (opt->copyright == AC3ENC_OPT_NONE)
+            opt->copyright = AC3ENC_OPT_OFF;
+        /* default original */
+        if (opt->original == AC3ENC_OPT_NONE)
+            opt->original = AC3ENC_OPT_ON;
+    }
+
+    /* dolby surround mode default */
+    if (!s->eac3 || opt->eac3_info_metadata) {
+        if (opt->dolby_surround_mode == AC3ENC_OPT_NONE)
+            opt->dolby_surround_mode = AC3ENC_OPT_NOT_INDICATED;
+    }
+
+    /* validate audio production info */
+    if (opt->audio_production_info) {
+        if (opt->mixing_level == AC3ENC_OPT_NONE) {
+            av_log(avctx, AV_LOG_ERROR, "mixing_level must be set if "
+                   "room_type is set\n");
+            return AVERROR(EINVAL);
+        }
+        if (opt->mixing_level < 80) {
+            av_log(avctx, AV_LOG_ERROR, "invalid mixing level. must be between "
+                   "80dB and 111dB\n");
+            return AVERROR(EINVAL);
+        }
+        /* default room type */
+        if (opt->room_type == AC3ENC_OPT_NONE)
+            opt->room_type = AC3ENC_OPT_NOT_INDICATED;
+    }
+
+    /* set bitstream id for alternate bitstream syntax */
+    if (!s->eac3 && (opt->extended_bsi_1 || opt->extended_bsi_2)) {
+        if (s->bitstream_id > 8 && s->bitstream_id < 11) {
+            static int warn_once = 1;
+            if (warn_once) {
+                av_log(avctx, AV_LOG_WARNING, "alternate bitstream syntax is "
+                       "not compatible with reduced samplerates. writing of "
+                       "extended bitstream information will be disabled.\n");
+                warn_once = 0;
+            }
+        } else {
+            s->bitstream_id = 6;
+        }
+    }
+
+    return 0;
+}
+
+
+/**
+ * Finalize encoding and free any memory allocated by the encoder.
+ *
+ * @param avctx  Codec context
+ */
+av_cold int ff_ac3_encode_close(AVCodecContext *avctx)
+{
+    int blk, ch;
+    AC3EncodeContext *s = avctx->priv_data;
+
+    av_freep(&s->windowed_samples);
+    if (s->planar_samples)
+    for (ch = 0; ch < s->channels; ch++)
+        av_freep(&s->planar_samples[ch]);
+    av_freep(&s->planar_samples);
+    av_freep(&s->bap_buffer);
+    av_freep(&s->bap1_buffer);
+    av_freep(&s->mdct_coef_buffer);
+    av_freep(&s->fixed_coef_buffer);
+    av_freep(&s->exp_buffer);
+    av_freep(&s->grouped_exp_buffer);
+    av_freep(&s->psd_buffer);
+    av_freep(&s->band_psd_buffer);
+    av_freep(&s->mask_buffer);
+    av_freep(&s->qmant_buffer);
+    av_freep(&s->cpl_coord_exp_buffer);
+    av_freep(&s->cpl_coord_mant_buffer);
+    av_freep(&s->fdsp);
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        av_freep(&block->mdct_coef);
+        av_freep(&block->fixed_coef);
+        av_freep(&block->exp);
+        av_freep(&block->grouped_exp);
+        av_freep(&block->psd);
+        av_freep(&block->band_psd);
+        av_freep(&block->mask);
+        av_freep(&block->qmant);
+        av_freep(&block->cpl_coord_exp);
+        av_freep(&block->cpl_coord_mant);
+    }
+
+    s->mdct_end(s);
+
+    return 0;
+}
+
+
+/*
+ * Set channel information during initialization.
+ */
+static av_cold int set_channel_info(AC3EncodeContext *s, int channels,
+                                    uint64_t *channel_layout)
+{
+    int ch_layout;
+
+    if (channels < 1 || channels > AC3_MAX_CHANNELS)
+        return AVERROR(EINVAL);
+    if (*channel_layout > 0x7FF)
+        return AVERROR(EINVAL);
+    ch_layout = *channel_layout;
+    if (!ch_layout)
+        ch_layout = av_get_default_channel_layout(channels);
+
+    s->lfe_on       = !!(ch_layout & AV_CH_LOW_FREQUENCY);
+    s->channels     = channels;
+    s->fbw_channels = channels - s->lfe_on;
+    s->lfe_channel  = s->lfe_on ? s->fbw_channels + 1 : -1;
+    if (s->lfe_on)
+        ch_layout -= AV_CH_LOW_FREQUENCY;
+
+    switch (ch_layout) {
+    case AV_CH_LAYOUT_MONO:           s->channel_mode = AC3_CHMODE_MONO;   break;
+    case AV_CH_LAYOUT_STEREO:         s->channel_mode = AC3_CHMODE_STEREO; break;
+    case AV_CH_LAYOUT_SURROUND:       s->channel_mode = AC3_CHMODE_3F;     break;
+    case AV_CH_LAYOUT_2_1:            s->channel_mode = AC3_CHMODE_2F1R;   break;
+    case AV_CH_LAYOUT_4POINT0:        s->channel_mode = AC3_CHMODE_3F1R;   break;
+    case AV_CH_LAYOUT_QUAD:
+    case AV_CH_LAYOUT_2_2:            s->channel_mode = AC3_CHMODE_2F2R;   break;
+    case AV_CH_LAYOUT_5POINT0:
+    case AV_CH_LAYOUT_5POINT0_BACK:   s->channel_mode = AC3_CHMODE_3F2R;   break;
+    default:
+        return AVERROR(EINVAL);
+    }
+    s->has_center   = (s->channel_mode & 0x01) && s->channel_mode != AC3_CHMODE_MONO;
+    s->has_surround =  s->channel_mode & 0x04;
+
+    s->channel_map  = ff_ac3_enc_channel_map[s->channel_mode][s->lfe_on];
+    *channel_layout = ch_layout;
+    if (s->lfe_on)
+        *channel_layout |= AV_CH_LOW_FREQUENCY;
+
+    return 0;
+}
+
+
+static av_cold int validate_options(AC3EncodeContext *s)
+{
+    AVCodecContext *avctx = s->avctx;
+    int i, ret, max_sr;
+
+    /* validate channel layout */
+    if (!avctx->channel_layout) {
+        av_log(avctx, AV_LOG_WARNING, "No channel layout specified. The "
+                                      "encoder will guess the layout, but it "
+                                      "might be incorrect.\n");
+    }
+    ret = set_channel_info(s, avctx->channels, &avctx->channel_layout);
+    if (ret) {
+        av_log(avctx, AV_LOG_ERROR, "invalid channel layout\n");
+        return ret;
+    }
+
+    /* validate sample rate */
+    /* note: max_sr could be changed from 2 to 5 for E-AC-3 once we find a
+             decoder that supports half sample rate so we can validate that
+             the generated files are correct. */
+    max_sr = s->eac3 ? 2 : 8;
+    for (i = 0; i <= max_sr; i++) {
+        if ((ff_ac3_sample_rate_tab[i % 3] >> (i / 3)) == avctx->sample_rate)
+            break;
+    }
+    if (i > max_sr) {
+        av_log(avctx, AV_LOG_ERROR, "invalid sample rate\n");
+        return AVERROR(EINVAL);
+    }
+    s->sample_rate        = avctx->sample_rate;
+    s->bit_alloc.sr_shift = i / 3;
+    s->bit_alloc.sr_code  = i % 3;
+    s->bitstream_id       = s->eac3 ? 16 : 8 + s->bit_alloc.sr_shift;
+
+    /* select a default bit rate if not set by the user */
+    if (!avctx->bit_rate) {
+        switch (s->fbw_channels) {
+        case 1: avctx->bit_rate =  96000; break;
+        case 2: avctx->bit_rate = 192000; break;
+        case 3: avctx->bit_rate = 320000; break;
+        case 4: avctx->bit_rate = 384000; break;
+        case 5: avctx->bit_rate = 448000; break;
+        }
+    }
+
+    /* validate bit rate */
+    if (s->eac3) {
+        int max_br, min_br, wpf, min_br_code;
+        int num_blks_code, num_blocks, frame_samples;
+        long long min_br_dist;
+
+        /* calculate min/max bitrate */
+        /* TODO: More testing with 3 and 2 blocks. All E-AC-3 samples I've
+                 found use either 6 blocks or 1 block, even though 2 or 3 blocks
+                 would work as far as the bit rate is concerned. */
+        for (num_blks_code = 3; num_blks_code >= 0; num_blks_code--) {
+            num_blocks = ((int[]){ 1, 2, 3, 6 })[num_blks_code];
+            frame_samples  = AC3_BLOCK_SIZE * num_blocks;
+            max_br = 2048 * s->sample_rate / frame_samples * 16;
+            min_br = ((s->sample_rate + (frame_samples-1)) / frame_samples) * 16;
+            if (avctx->bit_rate <= max_br)
+                break;
+        }
+        if (avctx->bit_rate < min_br || avctx->bit_rate > max_br) {
+            av_log(avctx, AV_LOG_ERROR, "invalid bit rate. must be %d to %d "
+                   "for this sample rate\n", min_br, max_br);
+            return AVERROR(EINVAL);
+        }
+        s->num_blks_code = num_blks_code;
+        s->num_blocks    = num_blocks;
+
+        /* calculate words-per-frame for the selected bitrate */
+        wpf = (avctx->bit_rate / 16) * frame_samples / s->sample_rate;
+        av_assert1(wpf > 0 && wpf <= 2048);
+
+        /* find the closest AC-3 bitrate code to the selected bitrate.
+           this is needed for lookup tables for bandwidth and coupling
+           parameter selection */
+        min_br_code = -1;
+        min_br_dist = INT64_MAX;
+        for (i = 0; i < 19; i++) {
+            long long br_dist = llabs(ff_ac3_bitrate_tab[i] * 1000 - avctx->bit_rate);
+            if (br_dist < min_br_dist) {
+                min_br_dist = br_dist;
+                min_br_code = i;
+            }
+        }
+
+        /* make sure the minimum frame size is below the average frame size */
+        s->frame_size_code = min_br_code << 1;
+        while (wpf > 1 && wpf * s->sample_rate / AC3_FRAME_SIZE * 16 > avctx->bit_rate)
+            wpf--;
+        s->frame_size_min = 2 * wpf;
+    } else {
+        int best_br = 0, best_code = 0;
+        long long best_diff = INT64_MAX;
+        for (i = 0; i < 19; i++) {
+            int br   = (ff_ac3_bitrate_tab[i] >> s->bit_alloc.sr_shift) * 1000;
+            long long diff = llabs(br - avctx->bit_rate);
+            if (diff < best_diff) {
+                best_br   = br;
+                best_code = i;
+                best_diff = diff;
+            }
+            if (!best_diff)
+                break;
+        }
+        avctx->bit_rate    = best_br;
+        s->frame_size_code = best_code << 1;
+        s->frame_size_min  = 2 * ff_ac3_frame_size_tab[s->frame_size_code][s->bit_alloc.sr_code];
+        s->num_blks_code   = 0x3;
+        s->num_blocks      = 6;
+    }
+    s->bit_rate   = avctx->bit_rate;
+    s->frame_size = s->frame_size_min;
+
+    /* validate cutoff */
+    if (avctx->cutoff < 0) {
+        av_log(avctx, AV_LOG_ERROR, "invalid cutoff frequency\n");
+        return AVERROR(EINVAL);
+    }
+    s->cutoff = avctx->cutoff;
+    if (s->cutoff > (s->sample_rate >> 1))
+        s->cutoff = s->sample_rate >> 1;
+
+    ret = ff_ac3_validate_metadata(s);
+    if (ret)
+        return ret;
+
+    s->rematrixing_enabled = s->options.stereo_rematrixing &&
+                             (s->channel_mode == AC3_CHMODE_STEREO);
+
+    s->cpl_enabled = s->options.channel_coupling &&
+                     s->channel_mode >= AC3_CHMODE_STEREO;
+
+    return 0;
+}
+
+
+/*
+ * Set bandwidth for all channels.
+ * The user can optionally supply a cutoff frequency. Otherwise an appropriate
+ * default value will be used.
+ */
+static av_cold void set_bandwidth(AC3EncodeContext *s)
+{
+    int blk, ch, av_uninit(cpl_start);
+
+    if (s->cutoff) {
+        /* calculate bandwidth based on user-specified cutoff frequency */
+        int fbw_coeffs;
+        fbw_coeffs     = s->cutoff * 2 * AC3_MAX_COEFS / s->sample_rate;
+        s->bandwidth_code = av_clip((fbw_coeffs - 73) / 3, 0, 60);
+    } else {
+        /* use default bandwidth setting */
+        s->bandwidth_code = ac3_bandwidth_tab[s->fbw_channels-1][s->bit_alloc.sr_code][s->frame_size_code/2];
+    }
+
+    /* set number of coefficients for each channel */
+    for (ch = 1; ch <= s->fbw_channels; ch++) {
+        s->start_freq[ch] = 0;
+        for (blk = 0; blk < s->num_blocks; blk++)
+            s->blocks[blk].end_freq[ch] = s->bandwidth_code * 3 + 73;
+    }
+    /* LFE channel always has 7 coefs */
+    if (s->lfe_on) {
+        s->start_freq[s->lfe_channel] = 0;
+        for (blk = 0; blk < s->num_blocks; blk++)
+            s->blocks[blk].end_freq[ch] = 7;
+    }
+
+    /* initialize coupling strategy */
+    if (s->cpl_enabled) {
+        if (s->options.cpl_start != AC3ENC_OPT_AUTO) {
+            cpl_start = s->options.cpl_start;
+        } else {
+            cpl_start = ac3_coupling_start_tab[s->channel_mode-2][s->bit_alloc.sr_code][s->frame_size_code/2];
+            if (cpl_start < 0) {
+                if (s->options.channel_coupling == AC3ENC_OPT_AUTO)
+                    s->cpl_enabled = 0;
+                else
+                    cpl_start = 15;
+            }
+        }
+    }
+    if (s->cpl_enabled) {
+        int i, cpl_start_band, cpl_end_band;
+        uint8_t *cpl_band_sizes = s->cpl_band_sizes;
+
+        cpl_end_band   = s->bandwidth_code / 4 + 3;
+        cpl_start_band = av_clip(cpl_start, 0, FFMIN(cpl_end_band-1, 15));
+
+        s->num_cpl_subbands = cpl_end_band - cpl_start_band;
+
+        s->num_cpl_bands = 1;
+        *cpl_band_sizes  = 12;
+        for (i = cpl_start_band + 1; i < cpl_end_band; i++) {
+            if (ff_eac3_default_cpl_band_struct[i]) {
+                *cpl_band_sizes += 12;
+            } else {
+                s->num_cpl_bands++;
+                cpl_band_sizes++;
+                *cpl_band_sizes = 12;
+            }
+        }
+
+        s->start_freq[CPL_CH] = cpl_start_band * 12 + 37;
+        s->cpl_end_freq       = cpl_end_band   * 12 + 37;
+        for (blk = 0; blk < s->num_blocks; blk++)
+            s->blocks[blk].end_freq[CPL_CH] = s->cpl_end_freq;
+    }
+}
+
+
+static av_cold int allocate_buffers(AC3EncodeContext *s)
+{
+    AVCodecContext *avctx = s->avctx;
+    int blk, ch;
+    int channels = s->channels + 1; /* includes coupling channel */
+    int channel_blocks = channels * s->num_blocks;
+    int total_coefs    = AC3_MAX_COEFS * channel_blocks;
+
+    if (s->allocate_sample_buffers(s))
+        goto alloc_fail;
+
+    FF_ALLOC_ARRAY_OR_GOTO(avctx, s->bap_buffer, total_coefs,
+                     sizeof(*s->bap_buffer), alloc_fail);
+    FF_ALLOC_ARRAY_OR_GOTO(avctx, s->bap1_buffer, total_coefs,
+                     sizeof(*s->bap1_buffer), alloc_fail);
+    FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->mdct_coef_buffer, total_coefs,
+                      sizeof(*s->mdct_coef_buffer), alloc_fail);
+    FF_ALLOC_ARRAY_OR_GOTO(avctx, s->exp_buffer, total_coefs,
+                     sizeof(*s->exp_buffer), alloc_fail);
+    FF_ALLOC_ARRAY_OR_GOTO(avctx, s->grouped_exp_buffer, channel_blocks, 128 *
+                     sizeof(*s->grouped_exp_buffer), alloc_fail);
+    FF_ALLOC_ARRAY_OR_GOTO(avctx, s->psd_buffer, total_coefs,
+                     sizeof(*s->psd_buffer), alloc_fail);
+    FF_ALLOC_ARRAY_OR_GOTO(avctx, s->band_psd_buffer, channel_blocks, 64 *
+                     sizeof(*s->band_psd_buffer), alloc_fail);
+    FF_ALLOC_ARRAY_OR_GOTO(avctx, s->mask_buffer, channel_blocks, 64 *
+                     sizeof(*s->mask_buffer), alloc_fail);
+    FF_ALLOC_ARRAY_OR_GOTO(avctx, s->qmant_buffer, total_coefs,
+                     sizeof(*s->qmant_buffer), alloc_fail);
+    if (s->cpl_enabled) {
+        FF_ALLOC_ARRAY_OR_GOTO(avctx, s->cpl_coord_exp_buffer, channel_blocks, 16 *
+                         sizeof(*s->cpl_coord_exp_buffer), alloc_fail);
+        FF_ALLOC_ARRAY_OR_GOTO(avctx, s->cpl_coord_mant_buffer, channel_blocks, 16 *
+                         sizeof(*s->cpl_coord_mant_buffer), alloc_fail);
+    }
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        FF_ALLOCZ_ARRAY_OR_GOTO(avctx, block->mdct_coef, channels, sizeof(*block->mdct_coef),
+                          alloc_fail);
+        FF_ALLOCZ_ARRAY_OR_GOTO(avctx, block->exp, channels, sizeof(*block->exp),
+                          alloc_fail);
+        FF_ALLOCZ_ARRAY_OR_GOTO(avctx, block->grouped_exp, channels, sizeof(*block->grouped_exp),
+                          alloc_fail);
+        FF_ALLOCZ_ARRAY_OR_GOTO(avctx, block->psd, channels, sizeof(*block->psd),
+                          alloc_fail);
+        FF_ALLOCZ_ARRAY_OR_GOTO(avctx, block->band_psd, channels, sizeof(*block->band_psd),
+                          alloc_fail);
+        FF_ALLOCZ_ARRAY_OR_GOTO(avctx, block->mask, channels, sizeof(*block->mask),
+                          alloc_fail);
+        FF_ALLOCZ_ARRAY_OR_GOTO(avctx, block->qmant, channels, sizeof(*block->qmant),
+                          alloc_fail);
+        if (s->cpl_enabled) {
+            FF_ALLOCZ_ARRAY_OR_GOTO(avctx, block->cpl_coord_exp, channels, sizeof(*block->cpl_coord_exp),
+                              alloc_fail);
+            FF_ALLOCZ_ARRAY_OR_GOTO(avctx, block->cpl_coord_mant, channels, sizeof(*block->cpl_coord_mant),
+                              alloc_fail);
+        }
+
+        for (ch = 0; ch < channels; ch++) {
+            /* arrangement: block, channel, coeff */
+            block->grouped_exp[ch] = &s->grouped_exp_buffer[128           * (blk * channels + ch)];
+            block->psd[ch]         = &s->psd_buffer        [AC3_MAX_COEFS * (blk * channels + ch)];
+            block->band_psd[ch]    = &s->band_psd_buffer   [64            * (blk * channels + ch)];
+            block->mask[ch]        = &s->mask_buffer       [64            * (blk * channels + ch)];
+            block->qmant[ch]       = &s->qmant_buffer      [AC3_MAX_COEFS * (blk * channels + ch)];
+            if (s->cpl_enabled) {
+                block->cpl_coord_exp[ch]  = &s->cpl_coord_exp_buffer [16  * (blk * channels + ch)];
+                block->cpl_coord_mant[ch] = &s->cpl_coord_mant_buffer[16  * (blk * channels + ch)];
+            }
+
+            /* arrangement: channel, block, coeff */
+            block->exp[ch]         = &s->exp_buffer        [AC3_MAX_COEFS * (s->num_blocks * ch + blk)];
+            block->mdct_coef[ch]   = &s->mdct_coef_buffer  [AC3_MAX_COEFS * (s->num_blocks * ch + blk)];
+        }
+    }
+
+    if (!s->fixed_point) {
+        FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->fixed_coef_buffer, total_coefs,
+                          sizeof(*s->fixed_coef_buffer), alloc_fail);
+        for (blk = 0; blk < s->num_blocks; blk++) {
+            AC3Block *block = &s->blocks[blk];
+            FF_ALLOCZ_ARRAY_OR_GOTO(avctx, block->fixed_coef, channels,
+                              sizeof(*block->fixed_coef), alloc_fail);
+            for (ch = 0; ch < channels; ch++)
+                block->fixed_coef[ch] = &s->fixed_coef_buffer[AC3_MAX_COEFS * (s->num_blocks * ch + blk)];
+        }
+    } else {
+        for (blk = 0; blk < s->num_blocks; blk++) {
+            AC3Block *block = &s->blocks[blk];
+            FF_ALLOCZ_ARRAY_OR_GOTO(avctx, block->fixed_coef, channels,
+                              sizeof(*block->fixed_coef), alloc_fail);
+            for (ch = 0; ch < channels; ch++)
+                block->fixed_coef[ch] = (int32_t *)block->mdct_coef[ch];
+        }
+    }
+
+    return 0;
+alloc_fail:
+    return AVERROR(ENOMEM);
+}
+
+
+av_cold int ff_ac3_encode_init(AVCodecContext *avctx)
+{
+    AC3EncodeContext *s = avctx->priv_data;
+    int ret, frame_size_58;
+
+    s->avctx = avctx;
+
+    s->eac3 = avctx->codec_id == AV_CODEC_ID_EAC3;
+
+    ret = validate_options(s);
+    if (ret)
+        return ret;
+
+    avctx->frame_size = AC3_BLOCK_SIZE * s->num_blocks;
+    avctx->initial_padding = AC3_BLOCK_SIZE;
+
+    s->bitstream_mode = avctx->audio_service_type;
+    if (s->bitstream_mode == AV_AUDIO_SERVICE_TYPE_KARAOKE)
+        s->bitstream_mode = 0x7;
+
+    s->bits_written    = 0;
+    s->samples_written = 0;
+
+    /* calculate crc_inv for both possible frame sizes */
+    frame_size_58 = (( s->frame_size    >> 2) + ( s->frame_size    >> 4)) << 1;
+    s->crc_inv[0] = pow_poly((CRC16_POLY >> 1), (8 * frame_size_58) - 16, CRC16_POLY);
+    if (s->bit_alloc.sr_code == 1) {
+        frame_size_58 = (((s->frame_size+2) >> 2) + ((s->frame_size+2) >> 4)) << 1;
+        s->crc_inv[1] = pow_poly((CRC16_POLY >> 1), (8 * frame_size_58) - 16, CRC16_POLY);
+    }
+
+    /* set function pointers */
+    if (CONFIG_AC3_FIXED_ENCODER && s->fixed_point) {
+        s->mdct_end                     = ff_ac3_fixed_mdct_end;
+        s->mdct_init                    = ff_ac3_fixed_mdct_init;
+        s->allocate_sample_buffers      = ff_ac3_fixed_allocate_sample_buffers;
+    } else if (CONFIG_AC3_ENCODER || CONFIG_EAC3_ENCODER) {
+        s->mdct_end                     = ff_ac3_float_mdct_end;
+        s->mdct_init                    = ff_ac3_float_mdct_init;
+        s->allocate_sample_buffers      = ff_ac3_float_allocate_sample_buffers;
+    }
+    if (CONFIG_EAC3_ENCODER && s->eac3)
+        s->output_frame_header = ff_eac3_output_frame_header;
+    else
+        s->output_frame_header = ac3_output_frame_header;
+
+    set_bandwidth(s);
+
+    exponent_init(s);
+
+    bit_alloc_init(s);
+
+    ret = s->mdct_init(s);
+    if (ret)
+        goto init_fail;
+
+    ret = allocate_buffers(s);
+    if (ret)
+        goto init_fail;
+
+    ff_audiodsp_init(&s->adsp);
+    ff_me_cmp_init(&s->mecc, avctx);
+    ff_ac3dsp_init(&s->ac3dsp, avctx->flags & AV_CODEC_FLAG_BITEXACT);
+
+    dprint_options(s);
+
+    return 0;
+init_fail:
+    ff_ac3_encode_close(avctx);
+    return ret;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc.h
new file mode 100644
index 000000000..a2442d0e5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc.h
@@ -0,0 +1,315 @@
+/*
+ * AC-3 encoder & E-AC-3 encoder common header
+ * Copyright (c) 2000 Fabrice Bellard
+ * Copyright (c) 2006-2010 Justin Ruggles <justin.ruggles@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AC-3 encoder & E-AC-3 encoder common header
+ */
+
+#ifndef AVCODEC_AC3ENC_H
+#define AVCODEC_AC3ENC_H
+
+#include <stdint.h>
+
+#include "libavutil/float_dsp.h"
+
+#include "ac3.h"
+#include "ac3dsp.h"
+#include "avcodec.h"
+#include "fft.h"
+#include "mathops.h"
+#include "me_cmp.h"
+#include "put_bits.h"
+#include "audiodsp.h"
+
+#ifndef CONFIG_AC3ENC_FLOAT
+#define CONFIG_AC3ENC_FLOAT 0
+#endif
+
+#define OFFSET(param) offsetof(AC3EncodeContext, options.param)
+#define AC3ENC_PARAM (AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
+
+#define AC3ENC_TYPE_AC3_FIXED   0
+#define AC3ENC_TYPE_AC3         1
+#define AC3ENC_TYPE_EAC3        2
+
+#if CONFIG_AC3ENC_FLOAT
+#define AC3_NAME(x) ff_ac3_float_ ## x
+#define MAC_COEF(d,a,b) ((d)+=(a)*(b))
+#define COEF_MIN (-16777215.0/16777216.0)
+#define COEF_MAX ( 16777215.0/16777216.0)
+#define NEW_CPL_COORD_THRESHOLD 0.03
+typedef float SampleType;
+typedef float CoefType;
+typedef float CoefSumType;
+#else
+#define AC3_NAME(x) ff_ac3_fixed_ ## x
+#define MAC_COEF(d,a,b) MAC64(d,a,b)
+#define COEF_MIN -16777215
+#define COEF_MAX  16777215
+#define NEW_CPL_COORD_THRESHOLD 503317
+typedef int16_t SampleType;
+typedef int32_t CoefType;
+typedef int64_t CoefSumType;
+#endif
+
+/* common option values */
+#define AC3ENC_OPT_NONE            -1
+#define AC3ENC_OPT_AUTO            -1
+#define AC3ENC_OPT_OFF              0
+#define AC3ENC_OPT_ON               1
+#define AC3ENC_OPT_NOT_INDICATED    0
+#define AC3ENC_OPT_MODE_ON          2
+#define AC3ENC_OPT_MODE_OFF         1
+#define AC3ENC_OPT_DSUREX_DPLIIZ    3
+
+/* specific option values */
+#define AC3ENC_OPT_LARGE_ROOM       1
+#define AC3ENC_OPT_SMALL_ROOM       2
+#define AC3ENC_OPT_DOWNMIX_LTRT     1
+#define AC3ENC_OPT_DOWNMIX_LORO     2
+#define AC3ENC_OPT_DOWNMIX_DPLII    3 // reserved value in A/52, but used by encoders to indicate DPL2
+#define AC3ENC_OPT_ADCONV_STANDARD  0
+#define AC3ENC_OPT_ADCONV_HDCD      1
+
+
+/**
+ * Encoding Options used by AVOption.
+ */
+typedef struct AC3EncOptions {
+    /* AC-3 metadata options*/
+    int dialogue_level;
+    int bitstream_mode;
+    float center_mix_level;
+    float surround_mix_level;
+    int dolby_surround_mode;
+    int audio_production_info;
+    int mixing_level;
+    int room_type;
+    int copyright;
+    int original;
+    int extended_bsi_1;
+    int preferred_stereo_downmix;
+    float ltrt_center_mix_level;
+    float ltrt_surround_mix_level;
+    float loro_center_mix_level;
+    float loro_surround_mix_level;
+    int extended_bsi_2;
+    int dolby_surround_ex_mode;
+    int dolby_headphone_mode;
+    int ad_converter_type;
+    int eac3_mixing_metadata;
+    int eac3_info_metadata;
+
+    /* other encoding options */
+    int allow_per_frame_metadata;
+    int stereo_rematrixing;
+    int channel_coupling;
+    int cpl_start;
+} AC3EncOptions;
+
+/**
+ * Data for a single audio block.
+ */
+typedef struct AC3Block {
+    CoefType **mdct_coef;                       ///< MDCT coefficients
+    int32_t  **fixed_coef;                      ///< fixed-point MDCT coefficients
+    uint8_t  **exp;                             ///< original exponents
+    uint8_t  **grouped_exp;                     ///< grouped exponents
+    int16_t  **psd;                             ///< psd per frequency bin
+    int16_t  **band_psd;                        ///< psd per critical band
+    int16_t  **mask;                            ///< masking curve
+    uint16_t **qmant;                           ///< quantized mantissas
+    uint8_t  **cpl_coord_exp;                   ///< coupling coord exponents           (cplcoexp)
+    uint8_t  **cpl_coord_mant;                  ///< coupling coord mantissas           (cplcomant)
+    uint8_t  coeff_shift[AC3_MAX_CHANNELS];     ///< fixed-point coefficient shift values
+    uint8_t  new_rematrixing_strategy;          ///< send new rematrixing flags in this block
+    int      num_rematrixing_bands;             ///< number of rematrixing bands
+    uint8_t  rematrixing_flags[4];              ///< rematrixing flags
+    int      new_cpl_strategy;                  ///< send new coupling strategy
+    int      cpl_in_use;                        ///< coupling in use for this block     (cplinu)
+    uint8_t  channel_in_cpl[AC3_MAX_CHANNELS];  ///< channel in coupling                (chincpl)
+    int      num_cpl_channels;                  ///< number of channels in coupling
+    uint8_t  new_cpl_coords[AC3_MAX_CHANNELS];  ///< send new coupling coordinates      (cplcoe)
+    uint8_t  cpl_master_exp[AC3_MAX_CHANNELS];  ///< coupling coord master exponents    (mstrcplco)
+    int      new_snr_offsets;                   ///< send new SNR offsets
+    int      new_cpl_leak;                      ///< send new coupling leak info
+    int      end_freq[AC3_MAX_CHANNELS];        ///< end frequency bin                  (endmant)
+} AC3Block;
+
+/**
+ * AC-3 encoder private context.
+ */
+typedef struct AC3EncodeContext {
+    AVClass *av_class;                      ///< AVClass used for AVOption
+    AC3EncOptions options;                  ///< encoding options
+    AVCodecContext *avctx;                  ///< parent AVCodecContext
+    PutBitContext pb;                       ///< bitstream writer context
+    AudioDSPContext adsp;
+    AVFloatDSPContext *fdsp;
+    MECmpContext mecc;
+    AC3DSPContext ac3dsp;                   ///< AC-3 optimized functions
+    FFTContext mdct;                        ///< FFT context for MDCT calculation
+    const SampleType *mdct_window;          ///< MDCT window function array
+
+    AC3Block blocks[AC3_MAX_BLOCKS];        ///< per-block info
+
+    int fixed_point;                        ///< indicates if fixed-point encoder is being used
+    int eac3;                               ///< indicates if this is E-AC-3 vs. AC-3
+    int bitstream_id;                       ///< bitstream id                           (bsid)
+    int bitstream_mode;                     ///< bitstream mode                         (bsmod)
+
+    int bit_rate;                           ///< target bit rate, in bits-per-second
+    int sample_rate;                        ///< sampling frequency, in Hz
+
+    int num_blks_code;                      ///< number of blocks code                  (numblkscod)
+    int num_blocks;                         ///< number of blocks per frame
+    int frame_size_min;                     ///< minimum frame size in case rounding is necessary
+    int frame_size;                         ///< current frame size in bytes
+    int frame_size_code;                    ///< frame size code                        (frmsizecod)
+    uint16_t crc_inv[2];
+    int64_t bits_written;                   ///< bit count    (used to avg. bitrate)
+    int64_t samples_written;                ///< sample count (used to avg. bitrate)
+
+    int fbw_channels;                       ///< number of full-bandwidth channels      (nfchans)
+    int channels;                           ///< total number of channels               (nchans)
+    int lfe_on;                             ///< indicates if there is an LFE channel   (lfeon)
+    int lfe_channel;                        ///< channel index of the LFE channel
+    int has_center;                         ///< indicates if there is a center channel
+    int has_surround;                       ///< indicates if there are one or more surround channels
+    int channel_mode;                       ///< channel mode                           (acmod)
+    const uint8_t *channel_map;             ///< channel map used to reorder channels
+
+    int center_mix_level;                   ///< center mix level code
+    int surround_mix_level;                 ///< surround mix level code
+    int ltrt_center_mix_level;              ///< Lt/Rt center mix level code
+    int ltrt_surround_mix_level;            ///< Lt/Rt surround mix level code
+    int loro_center_mix_level;              ///< Lo/Ro center mix level code
+    int loro_surround_mix_level;            ///< Lo/Ro surround mix level code
+
+    int cutoff;                             ///< user-specified cutoff frequency, in Hz
+    int bandwidth_code;                     ///< bandwidth code (0 to 60)               (chbwcod)
+    int start_freq[AC3_MAX_CHANNELS];       ///< start frequency bin                    (strtmant)
+    int cpl_end_freq;                       ///< coupling channel end frequency bin
+
+    int cpl_on;                             ///< coupling turned on for this frame
+    int cpl_enabled;                        ///< coupling enabled for all frames
+    int num_cpl_subbands;                   ///< number of coupling subbands            (ncplsubnd)
+    int num_cpl_bands;                      ///< number of coupling bands               (ncplbnd)
+    uint8_t cpl_band_sizes[AC3_MAX_CPL_BANDS];  ///< number of coeffs in each coupling band
+
+    int rematrixing_enabled;                ///< stereo rematrixing enabled
+
+    /* bitrate allocation control */
+    int slow_gain_code;                     ///< slow gain code                         (sgaincod)
+    int slow_decay_code;                    ///< slow decay code                        (sdcycod)
+    int fast_decay_code;                    ///< fast decay code                        (fdcycod)
+    int db_per_bit_code;                    ///< dB/bit code                            (dbpbcod)
+    int floor_code;                         ///< floor code                             (floorcod)
+    AC3BitAllocParameters bit_alloc;        ///< bit allocation parameters
+    int coarse_snr_offset;                  ///< coarse SNR offsets                     (csnroffst)
+    int fast_gain_code[AC3_MAX_CHANNELS];   ///< fast gain codes (signal-to-mask ratio) (fgaincod)
+    int fine_snr_offset[AC3_MAX_CHANNELS];  ///< fine SNR offsets                       (fsnroffst)
+    int frame_bits_fixed;                   ///< number of non-coefficient bits for fixed parameters
+    int frame_bits;                         ///< all frame bits except exponents and mantissas
+    int exponent_bits;                      ///< number of bits used for exponents
+
+    SampleType *windowed_samples;
+    SampleType **planar_samples;
+    uint8_t *bap_buffer;
+    uint8_t *bap1_buffer;
+    CoefType *mdct_coef_buffer;
+    int32_t *fixed_coef_buffer;
+    uint8_t *exp_buffer;
+    uint8_t *grouped_exp_buffer;
+    int16_t *psd_buffer;
+    int16_t *band_psd_buffer;
+    int16_t *mask_buffer;
+    int16_t *qmant_buffer;
+    uint8_t *cpl_coord_exp_buffer;
+    uint8_t *cpl_coord_mant_buffer;
+
+    uint8_t exp_strategy[AC3_MAX_CHANNELS][AC3_MAX_BLOCKS]; ///< exponent strategies
+    uint8_t frame_exp_strategy[AC3_MAX_CHANNELS];           ///< frame exp strategy index
+    int use_frame_exp_strategy;                             ///< indicates use of frame exp strategy
+    uint8_t exp_ref_block[AC3_MAX_CHANNELS][AC3_MAX_BLOCKS]; ///< reference blocks for EXP_REUSE
+    uint8_t *ref_bap     [AC3_MAX_CHANNELS][AC3_MAX_BLOCKS]; ///< bit allocation pointers (bap)
+    int ref_bap_set;                                         ///< indicates if ref_bap pointers have been set
+
+    /* fixed vs. float function pointers */
+    void (*mdct_end)(struct AC3EncodeContext *s);
+    int  (*mdct_init)(struct AC3EncodeContext *s);
+
+    /* fixed vs. float templated function pointers */
+    int  (*allocate_sample_buffers)(struct AC3EncodeContext *s);
+
+    /* AC-3 vs. E-AC-3 function pointers */
+    void (*output_frame_header)(struct AC3EncodeContext *s);
+} AC3EncodeContext;
+
+
+extern const uint64_t ff_ac3_channel_layouts[19];
+
+int ff_ac3_encode_init(AVCodecContext *avctx);
+int ff_ac3_float_encode_init(AVCodecContext *avctx);
+
+int ff_ac3_encode_close(AVCodecContext *avctx);
+
+int ff_ac3_validate_metadata(AC3EncodeContext *s);
+
+void ff_ac3_adjust_frame_size(AC3EncodeContext *s);
+
+void ff_ac3_compute_coupling_strategy(AC3EncodeContext *s);
+
+void ff_ac3_apply_rematrixing(AC3EncodeContext *s);
+
+void ff_ac3_process_exponents(AC3EncodeContext *s);
+
+int ff_ac3_compute_bit_allocation(AC3EncodeContext *s);
+
+void ff_ac3_group_exponents(AC3EncodeContext *s);
+
+void ff_ac3_quantize_mantissas(AC3EncodeContext *s);
+
+void ff_ac3_output_frame(AC3EncodeContext *s, unsigned char *frame);
+
+
+/* prototypes for functions in ac3enc_fixed.c and ac3enc_float.c */
+
+void ff_ac3_fixed_mdct_end(AC3EncodeContext *s);
+void ff_ac3_float_mdct_end(AC3EncodeContext *s);
+
+int ff_ac3_fixed_mdct_init(AC3EncodeContext *s);
+int ff_ac3_float_mdct_init(AC3EncodeContext *s);
+
+
+/* prototypes for functions in ac3enc_template.c */
+
+int ff_ac3_fixed_allocate_sample_buffers(AC3EncodeContext *s);
+int ff_ac3_float_allocate_sample_buffers(AC3EncodeContext *s);
+
+int ff_ac3_fixed_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
+                              const AVFrame *frame, int *got_packet_ptr);
+int ff_ac3_float_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
+                              const AVFrame *frame, int *got_packet_ptr);
+
+#endif /* AVCODEC_AC3ENC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc_fixed.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc_fixed.c
new file mode 100644
index 000000000..b23fc6477
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc_fixed.c
@@ -0,0 +1,160 @@
+/*
+ * The simplest AC-3 encoder
+ * Copyright (c) 2000 Fabrice Bellard
+ * Copyright (c) 2006-2010 Justin Ruggles <justin.ruggles@gmail.com>
+ * Copyright (c) 2006-2010 Prakash Punnoor <prakash@punnoor.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * fixed-point AC-3 encoder.
+ */
+
+#define FFT_FLOAT 0
+#undef CONFIG_AC3ENC_FLOAT
+#include "internal.h"
+#include "audiodsp.h"
+#include "ac3enc.h"
+#include "eac3enc.h"
+
+#define AC3ENC_TYPE AC3ENC_TYPE_AC3_FIXED
+#include "ac3enc_opts_template.c"
+
+static const AVClass ac3enc_class = {
+    .class_name = "Fixed-Point AC-3 Encoder",
+    .item_name  = av_default_item_name,
+    .option     = ac3_options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+/*
+ * Normalize the input samples to use the maximum available precision.
+ * This assumes signed 16-bit input samples.
+ */
+static int normalize_samples(AC3EncodeContext *s)
+{
+    int v = s->ac3dsp.ac3_max_msb_abs_int16(s->windowed_samples, AC3_WINDOW_SIZE);
+    v = 14 - av_log2(v);
+    if (v > 0)
+        s->ac3dsp.ac3_lshift_int16(s->windowed_samples, AC3_WINDOW_SIZE, v);
+    /* +6 to right-shift from 31-bit to 25-bit */
+    return v + 6;
+}
+
+
+/*
+ * Scale MDCT coefficients to 25-bit signed fixed-point.
+ */
+static void scale_coefficients(AC3EncodeContext *s)
+{
+    int blk, ch;
+
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        for (ch = 1; ch <= s->channels; ch++) {
+            s->ac3dsp.ac3_rshift_int32(block->mdct_coef[ch], AC3_MAX_COEFS,
+                                       block->coeff_shift[ch]);
+        }
+    }
+}
+
+static void sum_square_butterfly(AC3EncodeContext *s, int64_t sum[4],
+                                 const int32_t *coef0, const int32_t *coef1,
+                                 int len)
+{
+    s->ac3dsp.sum_square_butterfly_int32(sum, coef0, coef1, len);
+}
+
+/*
+ * Clip MDCT coefficients to allowable range.
+ */
+static void clip_coefficients(AudioDSPContext *adsp, int32_t *coef,
+                              unsigned int len)
+{
+    adsp->vector_clip_int32(coef, coef, COEF_MIN, COEF_MAX, len);
+}
+
+
+/*
+ * Calculate a single coupling coordinate.
+ */
+static CoefType calc_cpl_coord(CoefSumType energy_ch, CoefSumType energy_cpl)
+{
+    if (energy_cpl <= COEF_MAX) {
+        return 1048576;
+    } else {
+        uint64_t coord   = energy_ch / (energy_cpl >> 24);
+        uint32_t coord32 = FFMIN(coord, 1073741824);
+        coord32          = ff_sqrt(coord32) << 9;
+        return FFMIN(coord32, COEF_MAX);
+    }
+}
+
+
+#include "ac3enc_template.c"
+
+
+/**
+ * Finalize MDCT and free allocated memory.
+ *
+ * @param s  AC-3 encoder private context
+ */
+av_cold void ff_ac3_fixed_mdct_end(AC3EncodeContext *s)
+{
+    ff_mdct_end(&s->mdct);
+}
+
+
+/**
+ * Initialize MDCT tables.
+ *
+ * @param s  AC-3 encoder private context
+ * @return   0 on success, negative error code on failure
+ */
+av_cold int ff_ac3_fixed_mdct_init(AC3EncodeContext *s)
+{
+    int ret = ff_mdct_init(&s->mdct, 9, 0, -1.0);
+    s->mdct_window = ff_ac3_window;
+    return ret;
+}
+
+
+static av_cold int ac3_fixed_encode_init(AVCodecContext *avctx)
+{
+    AC3EncodeContext *s = avctx->priv_data;
+    s->fixed_point = 1;
+    return ff_ac3_encode_init(avctx);
+}
+
+
+AVCodec ff_ac3_fixed_encoder = {
+    .name            = "ac3_fixed",
+    .long_name       = NULL_IF_CONFIG_SMALL("ATSC A/52A (AC-3)"),
+    .type            = AVMEDIA_TYPE_AUDIO,
+    .id              = AV_CODEC_ID_AC3,
+    .priv_data_size  = sizeof(AC3EncodeContext),
+    .init            = ac3_fixed_encode_init,
+    .encode2         = ff_ac3_fixed_encode_frame,
+    .close           = ff_ac3_encode_close,
+    .sample_fmts     = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16P,
+                                                      AV_SAMPLE_FMT_NONE },
+    .priv_class      = &ac3enc_class,
+    .channel_layouts = ff_ac3_channel_layouts,
+    .defaults        = ac3_defaults,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc_float.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc_float.c
new file mode 100644
index 000000000..d6e658b2b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc_float.c
@@ -0,0 +1,155 @@
+/*
+ * The simplest AC-3 encoder
+ * Copyright (c) 2000 Fabrice Bellard
+ * Copyright (c) 2006-2010 Justin Ruggles <justin.ruggles@gmail.com>
+ * Copyright (c) 2006-2010 Prakash Punnoor <prakash@punnoor.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * floating-point AC-3 encoder.
+ */
+
+#define CONFIG_AC3ENC_FLOAT 1
+#include "internal.h"
+#include "audiodsp.h"
+#include "ac3enc.h"
+#include "eac3enc.h"
+#include "kbdwin.h"
+
+
+#define AC3ENC_TYPE AC3ENC_TYPE_AC3
+#include "ac3enc_opts_template.c"
+static const AVClass ac3enc_class = {
+    .class_name = "AC-3 Encoder",
+    .item_name  = av_default_item_name,
+    .option     = ac3_options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+
+/*
+ * Scale MDCT coefficients from float to 24-bit fixed-point.
+ */
+static void scale_coefficients(AC3EncodeContext *s)
+{
+    int chan_size = AC3_MAX_COEFS * s->num_blocks;
+    int cpl       = s->cpl_on;
+    s->ac3dsp.float_to_fixed24(s->fixed_coef_buffer + (chan_size * !cpl),
+                               s->mdct_coef_buffer  + (chan_size * !cpl),
+                               chan_size * (s->channels + cpl));
+}
+
+
+/*
+ * Clip MDCT coefficients to allowable range.
+ */
+static void clip_coefficients(AudioDSPContext *adsp, float *coef,
+                              unsigned int len)
+{
+    adsp->vector_clipf(coef, coef, len, COEF_MIN, COEF_MAX);
+}
+
+
+/*
+ * Calculate a single coupling coordinate.
+ */
+static CoefType calc_cpl_coord(CoefSumType energy_ch, CoefSumType energy_cpl)
+{
+    float coord = 0.125;
+    if (energy_cpl > 0)
+        coord *= sqrtf(energy_ch / energy_cpl);
+    return FFMIN(coord, COEF_MAX);
+}
+
+static void sum_square_butterfly(AC3EncodeContext *s, float sum[4],
+                                 const float *coef0, const float *coef1,
+                                 int len)
+{
+    s->ac3dsp.sum_square_butterfly_float(sum, coef0, coef1, len);
+}
+
+
+#include "ac3enc_template.c"
+
+
+/**
+ * Finalize MDCT and free allocated memory.
+ *
+ * @param s  AC-3 encoder private context
+ */
+av_cold void ff_ac3_float_mdct_end(AC3EncodeContext *s)
+{
+    ff_mdct_end(&s->mdct);
+    av_freep(&s->mdct_window);
+}
+
+
+/**
+ * Initialize MDCT tables.
+ *
+ * @param s  AC-3 encoder private context
+ * @return   0 on success, negative error code on failure
+ */
+av_cold int ff_ac3_float_mdct_init(AC3EncodeContext *s)
+{
+    float *window;
+    int i, n, n2;
+
+    n  = 1 << 9;
+    n2 = n >> 1;
+
+    window = av_malloc_array(n, sizeof(*window));
+    if (!window) {
+        av_log(s->avctx, AV_LOG_ERROR, "Cannot allocate memory.\n");
+        return AVERROR(ENOMEM);
+    }
+    ff_kbd_window_init(window, 5.0, n2);
+    for (i = 0; i < n2; i++)
+        window[n-1-i] = window[i];
+    s->mdct_window = window;
+
+    return ff_mdct_init(&s->mdct, 9, 0, -2.0 / n);
+}
+
+
+av_cold int ff_ac3_float_encode_init(AVCodecContext *avctx)
+{
+    AC3EncodeContext *s = avctx->priv_data;
+    s->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
+    if (!s->fdsp)
+        return AVERROR(ENOMEM);
+    return ff_ac3_encode_init(avctx);
+}
+
+AVCodec ff_ac3_encoder = {
+    .name            = "ac3",
+    .long_name       = NULL_IF_CONFIG_SMALL("ATSC A/52A (AC-3)"),
+    .type            = AVMEDIA_TYPE_AUDIO,
+    .id              = AV_CODEC_ID_AC3,
+    .priv_data_size  = sizeof(AC3EncodeContext),
+    .init            = ff_ac3_float_encode_init,
+    .encode2         = ff_ac3_float_encode_frame,
+    .close           = ff_ac3_encode_close,
+    .sample_fmts     = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLTP,
+                                                      AV_SAMPLE_FMT_NONE },
+    .priv_class      = &ac3enc_class,
+    .channel_layouts = ff_ac3_channel_layouts,
+    .defaults        = ac3_defaults,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc_opts_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc_opts_template.c
new file mode 100644
index 000000000..57b65a7a9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc_opts_template.c
@@ -0,0 +1,82 @@
+/*
+ * AC-3 encoder options
+ * Copyright (c) 2011 Justin Ruggles <justin.ruggles@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/opt.h"
+#include "internal.h"
+#include "ac3.h"
+
+static const AVOption ac3_options[] = {
+/* Metadata Options */
+{"per_frame_metadata", "Allow Changing Metadata Per-Frame", OFFSET(allow_per_frame_metadata), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, AC3ENC_PARAM},
+#if AC3ENC_TYPE != AC3ENC_TYPE_EAC3
+/* AC-3 downmix levels */
+{"center_mixlev", "Center Mix Level", OFFSET(center_mix_level), AV_OPT_TYPE_FLOAT, {.dbl = LEVEL_MINUS_4POINT5DB }, 0.0, 1.0, AC3ENC_PARAM},
+{"surround_mixlev", "Surround Mix Level", OFFSET(surround_mix_level), AV_OPT_TYPE_FLOAT, {.dbl = LEVEL_MINUS_6DB }, 0.0, 1.0, AC3ENC_PARAM},
+#endif
+/* audio production information */
+{"mixing_level", "Mixing Level", OFFSET(mixing_level), AV_OPT_TYPE_INT, {.i64 = AC3ENC_OPT_NONE }, AC3ENC_OPT_NONE, 111, AC3ENC_PARAM},
+{"room_type", "Room Type", OFFSET(room_type), AV_OPT_TYPE_INT, {.i64 = AC3ENC_OPT_NONE }, AC3ENC_OPT_NONE, AC3ENC_OPT_SMALL_ROOM, AC3ENC_PARAM, "room_type"},
+    {"notindicated", "Not Indicated (default)", 0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_NOT_INDICATED }, INT_MIN, INT_MAX, AC3ENC_PARAM, "room_type"},
+    {"large",        "Large Room",              0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_LARGE_ROOM    }, INT_MIN, INT_MAX, AC3ENC_PARAM, "room_type"},
+    {"small",        "Small Room",              0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_SMALL_ROOM    }, INT_MIN, INT_MAX, AC3ENC_PARAM, "room_type"},
+/* other metadata options */
+{"copyright", "Copyright Bit", OFFSET(copyright), AV_OPT_TYPE_INT, {.i64 = AC3ENC_OPT_NONE }, AC3ENC_OPT_NONE, 1, AC3ENC_PARAM},
+{"dialnorm", "Dialogue Level (dB)", OFFSET(dialogue_level), AV_OPT_TYPE_INT, {.i64 = -31 }, -31, -1, AC3ENC_PARAM},
+{"dsur_mode", "Dolby Surround Mode", OFFSET(dolby_surround_mode), AV_OPT_TYPE_INT, {.i64 = AC3ENC_OPT_NONE }, AC3ENC_OPT_NONE, AC3ENC_OPT_MODE_ON, AC3ENC_PARAM, "dsur_mode"},
+    {"notindicated", "Not Indicated (default)",    0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_NOT_INDICATED }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dsur_mode"},
+    {"on",           "Dolby Surround Encoded",     0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_MODE_ON       }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dsur_mode"},
+    {"off",          "Not Dolby Surround Encoded", 0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_MODE_OFF      }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dsur_mode"},
+{"original", "Original Bit Stream", OFFSET(original), AV_OPT_TYPE_INT,   {.i64 = AC3ENC_OPT_NONE }, AC3ENC_OPT_NONE, 1, AC3ENC_PARAM},
+/* extended bitstream information */
+{"dmix_mode", "Preferred Stereo Downmix Mode", OFFSET(preferred_stereo_downmix), AV_OPT_TYPE_INT, {.i64 = AC3ENC_OPT_NONE }, AC3ENC_OPT_NONE, AC3ENC_OPT_DOWNMIX_DPLII, AC3ENC_PARAM, "dmix_mode"},
+    {"notindicated", "Not Indicated (default)", 0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_NOT_INDICATED }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dmix_mode"},
+    {"ltrt", "Lt/Rt Downmix Preferred",         0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_DOWNMIX_LTRT  }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dmix_mode"},
+    {"loro", "Lo/Ro Downmix Preferred",         0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_DOWNMIX_LORO  }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dmix_mode"},
+    {"dplii", "Dolby Pro Logic II Downmix Preferred", 0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_DOWNMIX_DPLII }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dmix_mode"},
+{"ltrt_cmixlev", "Lt/Rt Center Mix Level", OFFSET(ltrt_center_mix_level), AV_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1.0, 2.0, AC3ENC_PARAM},
+{"ltrt_surmixlev", "Lt/Rt Surround Mix Level", OFFSET(ltrt_surround_mix_level), AV_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1.0, 2.0, AC3ENC_PARAM},
+{"loro_cmixlev", "Lo/Ro Center Mix Level", OFFSET(loro_center_mix_level), AV_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1.0, 2.0, AC3ENC_PARAM},
+{"loro_surmixlev", "Lo/Ro Surround Mix Level", OFFSET(loro_surround_mix_level), AV_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1.0, 2.0, AC3ENC_PARAM},
+{"dsurex_mode", "Dolby Surround EX Mode", OFFSET(dolby_surround_ex_mode), AV_OPT_TYPE_INT, {.i64 = AC3ENC_OPT_NONE }, AC3ENC_OPT_NONE, AC3ENC_OPT_DSUREX_DPLIIZ, AC3ENC_PARAM, "dsurex_mode"},
+    {"notindicated", "Not Indicated (default)",       0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_NOT_INDICATED }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dsurex_mode"},
+    {"on",           "Dolby Surround EX Encoded",     0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_MODE_ON       }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dsurex_mode"},
+    {"off",          "Not Dolby Surround EX Encoded", 0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_MODE_OFF      }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dsurex_mode"},
+    {"dpliiz",       "Dolby Pro Logic IIz-encoded",   0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_DSUREX_DPLIIZ }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dsurex_mode"},
+{"dheadphone_mode", "Dolby Headphone Mode", OFFSET(dolby_headphone_mode), AV_OPT_TYPE_INT, {.i64 = AC3ENC_OPT_NONE }, AC3ENC_OPT_NONE, AC3ENC_OPT_MODE_ON, AC3ENC_PARAM, "dheadphone_mode"},
+    {"notindicated", "Not Indicated (default)",     0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_NOT_INDICATED }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dheadphone_mode"},
+    {"on",           "Dolby Headphone Encoded",     0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_MODE_ON       }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dheadphone_mode"},
+    {"off",          "Not Dolby Headphone Encoded", 0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_MODE_OFF      }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dheadphone_mode"},
+{"ad_conv_type", "A/D Converter Type", OFFSET(ad_converter_type), AV_OPT_TYPE_INT, {.i64 = AC3ENC_OPT_NONE }, AC3ENC_OPT_NONE, AC3ENC_OPT_ADCONV_HDCD, AC3ENC_PARAM, "ad_conv_type"},
+    {"standard", "Standard (default)", 0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_ADCONV_STANDARD }, INT_MIN, INT_MAX, AC3ENC_PARAM, "ad_conv_type"},
+    {"hdcd",     "HDCD",               0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_ADCONV_HDCD     }, INT_MIN, INT_MAX, AC3ENC_PARAM, "ad_conv_type"},
+/* Other Encoding Options */
+{"stereo_rematrixing", "Stereo Rematrixing", OFFSET(stereo_rematrixing), AV_OPT_TYPE_BOOL, {.i64 = 1 }, 0, 1, AC3ENC_PARAM},
+{"channel_coupling",   "Channel Coupling",   OFFSET(channel_coupling),   AV_OPT_TYPE_INT, {.i64 = AC3ENC_OPT_AUTO }, AC3ENC_OPT_AUTO, AC3ENC_OPT_ON, AC3ENC_PARAM, "channel_coupling"},
+    {"auto", "Selected by the Encoder", 0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_AUTO }, INT_MIN, INT_MAX, AC3ENC_PARAM, "channel_coupling"},
+{"cpl_start_band", "Coupling Start Band", OFFSET(cpl_start), AV_OPT_TYPE_INT, {.i64 = AC3ENC_OPT_AUTO }, AC3ENC_OPT_AUTO, 15, AC3ENC_PARAM, "cpl_start_band"},
+    {"auto", "Selected by the Encoder", 0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_AUTO }, INT_MIN, INT_MAX, AC3ENC_PARAM, "cpl_start_band"},
+{NULL}
+};
+
+static const AVCodecDefault ac3_defaults[] = {
+    { "b",  "0" },
+    { NULL }
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc_template.c
new file mode 100644
index 000000000..be659872f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3enc_template.c
@@ -0,0 +1,436 @@
+/*
+ * AC-3 encoder float/fixed template
+ * Copyright (c) 2000 Fabrice Bellard
+ * Copyright (c) 2006-2011 Justin Ruggles <justin.ruggles@gmail.com>
+ * Copyright (c) 2006-2010 Prakash Punnoor <prakash@punnoor.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AC-3 encoder float/fixed template
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/internal.h"
+
+#include "audiodsp.h"
+#include "internal.h"
+#include "ac3enc.h"
+#include "eac3enc.h"
+
+
+int AC3_NAME(allocate_sample_buffers)(AC3EncodeContext *s)
+{
+    int ch;
+
+    FF_ALLOC_OR_GOTO(s->avctx, s->windowed_samples, AC3_WINDOW_SIZE *
+                     sizeof(*s->windowed_samples), alloc_fail);
+    FF_ALLOC_ARRAY_OR_GOTO(s->avctx, s->planar_samples, s->channels, sizeof(*s->planar_samples),
+                     alloc_fail);
+    for (ch = 0; ch < s->channels; ch++) {
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->planar_samples[ch],
+                          (AC3_FRAME_SIZE+AC3_BLOCK_SIZE) * sizeof(**s->planar_samples),
+                          alloc_fail);
+    }
+
+    return 0;
+alloc_fail:
+    return AVERROR(ENOMEM);
+}
+
+
+/*
+ * Copy input samples.
+ * Channels are reordered from FFmpeg's default order to AC-3 order.
+ */
+static void copy_input_samples(AC3EncodeContext *s, SampleType **samples)
+{
+    int ch;
+
+    /* copy and remap input samples */
+    for (ch = 0; ch < s->channels; ch++) {
+        /* copy last 256 samples of previous frame to the start of the current frame */
+        memcpy(&s->planar_samples[ch][0], &s->planar_samples[ch][AC3_BLOCK_SIZE * s->num_blocks],
+               AC3_BLOCK_SIZE * sizeof(s->planar_samples[0][0]));
+
+        /* copy new samples for current frame */
+        memcpy(&s->planar_samples[ch][AC3_BLOCK_SIZE],
+               samples[s->channel_map[ch]],
+               AC3_BLOCK_SIZE * s->num_blocks * sizeof(s->planar_samples[0][0]));
+    }
+}
+
+
+/*
+ * Apply the MDCT to input samples to generate frequency coefficients.
+ * This applies the KBD window and normalizes the input to reduce precision
+ * loss due to fixed-point calculations.
+ */
+static void apply_mdct(AC3EncodeContext *s)
+{
+    int blk, ch;
+
+    for (ch = 0; ch < s->channels; ch++) {
+        for (blk = 0; blk < s->num_blocks; blk++) {
+            AC3Block *block = &s->blocks[blk];
+            const SampleType *input_samples = &s->planar_samples[ch][blk * AC3_BLOCK_SIZE];
+
+#if CONFIG_AC3ENC_FLOAT
+            s->fdsp->vector_fmul(s->windowed_samples, input_samples,
+                                s->mdct_window, AC3_WINDOW_SIZE);
+#else
+            s->ac3dsp.apply_window_int16(s->windowed_samples, input_samples,
+                                         s->mdct_window, AC3_WINDOW_SIZE);
+
+            if (s->fixed_point)
+                block->coeff_shift[ch+1] = normalize_samples(s);
+#endif
+
+            s->mdct.mdct_calcw(&s->mdct, block->mdct_coef[ch+1],
+                               s->windowed_samples);
+        }
+    }
+}
+
+
+/*
+ * Calculate coupling channel and coupling coordinates.
+ */
+static void apply_channel_coupling(AC3EncodeContext *s)
+{
+    LOCAL_ALIGNED_16(CoefType, cpl_coords,      [AC3_MAX_BLOCKS], [AC3_MAX_CHANNELS][16]);
+#if CONFIG_AC3ENC_FLOAT
+    LOCAL_ALIGNED_16(int32_t, fixed_cpl_coords, [AC3_MAX_BLOCKS], [AC3_MAX_CHANNELS][16]);
+#else
+    int32_t (*fixed_cpl_coords)[AC3_MAX_CHANNELS][16] = cpl_coords;
+#endif
+    int av_uninit(blk), ch, bnd, i, j;
+    CoefSumType energy[AC3_MAX_BLOCKS][AC3_MAX_CHANNELS][16] = {{{0}}};
+    int cpl_start, num_cpl_coefs;
+
+    memset(cpl_coords,       0, AC3_MAX_BLOCKS * sizeof(*cpl_coords));
+#if CONFIG_AC3ENC_FLOAT
+    memset(fixed_cpl_coords, 0, AC3_MAX_BLOCKS * sizeof(*cpl_coords));
+#endif
+
+    /* align start to 16-byte boundary. align length to multiple of 32.
+        note: coupling start bin % 4 will always be 1 */
+    cpl_start     = s->start_freq[CPL_CH] - 1;
+    num_cpl_coefs = FFALIGN(s->num_cpl_subbands * 12 + 1, 32);
+    cpl_start     = FFMIN(256, cpl_start + num_cpl_coefs) - num_cpl_coefs;
+
+    /* calculate coupling channel from fbw channels */
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        CoefType *cpl_coef = &block->mdct_coef[CPL_CH][cpl_start];
+        if (!block->cpl_in_use)
+            continue;
+        memset(cpl_coef, 0, num_cpl_coefs * sizeof(*cpl_coef));
+        for (ch = 1; ch <= s->fbw_channels; ch++) {
+            CoefType *ch_coef = &block->mdct_coef[ch][cpl_start];
+            if (!block->channel_in_cpl[ch])
+                continue;
+            for (i = 0; i < num_cpl_coefs; i++)
+                cpl_coef[i] += ch_coef[i];
+        }
+
+        /* coefficients must be clipped in order to be encoded */
+        clip_coefficients(&s->adsp, cpl_coef, num_cpl_coefs);
+    }
+
+    /* calculate energy in each band in coupling channel and each fbw channel */
+    /* TODO: possibly use SIMD to speed up energy calculation */
+    bnd = 0;
+    i = s->start_freq[CPL_CH];
+    while (i < s->cpl_end_freq) {
+        int band_size = s->cpl_band_sizes[bnd];
+        for (ch = CPL_CH; ch <= s->fbw_channels; ch++) {
+            for (blk = 0; blk < s->num_blocks; blk++) {
+                AC3Block *block = &s->blocks[blk];
+                if (!block->cpl_in_use || (ch > CPL_CH && !block->channel_in_cpl[ch]))
+                    continue;
+                for (j = 0; j < band_size; j++) {
+                    CoefType v = block->mdct_coef[ch][i+j];
+                    MAC_COEF(energy[blk][ch][bnd], v, v);
+                }
+            }
+        }
+        i += band_size;
+        bnd++;
+    }
+
+    /* calculate coupling coordinates for all blocks for all channels */
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block  = &s->blocks[blk];
+        if (!block->cpl_in_use)
+            continue;
+        for (ch = 1; ch <= s->fbw_channels; ch++) {
+            if (!block->channel_in_cpl[ch])
+                continue;
+            for (bnd = 0; bnd < s->num_cpl_bands; bnd++) {
+                cpl_coords[blk][ch][bnd] = calc_cpl_coord(energy[blk][ch][bnd],
+                                                          energy[blk][CPL_CH][bnd]);
+            }
+        }
+    }
+
+    /* determine which blocks to send new coupling coordinates for */
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block  = &s->blocks[blk];
+        AC3Block *block0 = blk ? &s->blocks[blk-1] : NULL;
+
+        memset(block->new_cpl_coords, 0, sizeof(block->new_cpl_coords));
+
+        if (block->cpl_in_use) {
+            /* send new coordinates if this is the first block, if previous
+             * block did not use coupling but this block does, the channels
+             * using coupling has changed from the previous block, or the
+             * coordinate difference from the last block for any channel is
+             * greater than a threshold value. */
+            if (blk == 0 || !block0->cpl_in_use) {
+                for (ch = 1; ch <= s->fbw_channels; ch++)
+                    block->new_cpl_coords[ch] = 1;
+            } else {
+                for (ch = 1; ch <= s->fbw_channels; ch++) {
+                    if (!block->channel_in_cpl[ch])
+                        continue;
+                    if (!block0->channel_in_cpl[ch]) {
+                        block->new_cpl_coords[ch] = 1;
+                    } else {
+                        CoefSumType coord_diff = 0;
+                        for (bnd = 0; bnd < s->num_cpl_bands; bnd++) {
+                            coord_diff += FFABS(cpl_coords[blk-1][ch][bnd] -
+                                                cpl_coords[blk  ][ch][bnd]);
+                        }
+                        coord_diff /= s->num_cpl_bands;
+                        if (coord_diff > NEW_CPL_COORD_THRESHOLD)
+                            block->new_cpl_coords[ch] = 1;
+                    }
+                }
+            }
+        }
+    }
+
+    /* calculate final coupling coordinates, taking into account reusing of
+       coordinates in successive blocks */
+    for (bnd = 0; bnd < s->num_cpl_bands; bnd++) {
+        blk = 0;
+        while (blk < s->num_blocks) {
+            int av_uninit(blk1);
+            AC3Block *block  = &s->blocks[blk];
+
+            if (!block->cpl_in_use) {
+                blk++;
+                continue;
+            }
+
+            for (ch = 1; ch <= s->fbw_channels; ch++) {
+                CoefSumType energy_ch, energy_cpl;
+                if (!block->channel_in_cpl[ch])
+                    continue;
+                energy_cpl = energy[blk][CPL_CH][bnd];
+                energy_ch = energy[blk][ch][bnd];
+                blk1 = blk+1;
+                while (blk1 < s->num_blocks && !s->blocks[blk1].new_cpl_coords[ch]) {
+                    if (s->blocks[blk1].cpl_in_use) {
+                        energy_cpl += energy[blk1][CPL_CH][bnd];
+                        energy_ch += energy[blk1][ch][bnd];
+                    }
+                    blk1++;
+                }
+                cpl_coords[blk][ch][bnd] = calc_cpl_coord(energy_ch, energy_cpl);
+            }
+            blk = blk1;
+        }
+    }
+
+    /* calculate exponents/mantissas for coupling coordinates */
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        AC3Block *block = &s->blocks[blk];
+        if (!block->cpl_in_use)
+            continue;
+
+#if CONFIG_AC3ENC_FLOAT
+        s->ac3dsp.float_to_fixed24(fixed_cpl_coords[blk][1],
+                                   cpl_coords[blk][1],
+                                   s->fbw_channels * 16);
+#endif
+        s->ac3dsp.extract_exponents(block->cpl_coord_exp[1],
+                                    fixed_cpl_coords[blk][1],
+                                    s->fbw_channels * 16);
+
+        for (ch = 1; ch <= s->fbw_channels; ch++) {
+            int bnd, min_exp, max_exp, master_exp;
+
+            if (!block->new_cpl_coords[ch])
+                continue;
+
+            /* determine master exponent */
+            min_exp = max_exp = block->cpl_coord_exp[ch][0];
+            for (bnd = 1; bnd < s->num_cpl_bands; bnd++) {
+                int exp = block->cpl_coord_exp[ch][bnd];
+                min_exp = FFMIN(exp, min_exp);
+                max_exp = FFMAX(exp, max_exp);
+            }
+            master_exp = ((max_exp - 15) + 2) / 3;
+            master_exp = FFMAX(master_exp, 0);
+            while (min_exp < master_exp * 3)
+                master_exp--;
+            for (bnd = 0; bnd < s->num_cpl_bands; bnd++) {
+                block->cpl_coord_exp[ch][bnd] = av_clip(block->cpl_coord_exp[ch][bnd] -
+                                                        master_exp * 3, 0, 15);
+            }
+            block->cpl_master_exp[ch] = master_exp;
+
+            /* quantize mantissas */
+            for (bnd = 0; bnd < s->num_cpl_bands; bnd++) {
+                int cpl_exp  = block->cpl_coord_exp[ch][bnd];
+                int cpl_mant = (fixed_cpl_coords[blk][ch][bnd] << (5 + cpl_exp + master_exp * 3)) >> 24;
+                if (cpl_exp == 15)
+                    cpl_mant >>= 1;
+                else
+                    cpl_mant -= 16;
+
+                block->cpl_coord_mant[ch][bnd] = cpl_mant;
+            }
+        }
+    }
+
+    if (CONFIG_EAC3_ENCODER && s->eac3)
+        ff_eac3_set_cpl_states(s);
+}
+
+
+/*
+ * Determine rematrixing flags for each block and band.
+ */
+static void compute_rematrixing_strategy(AC3EncodeContext *s)
+{
+    int nb_coefs;
+    int blk, bnd;
+    AC3Block *block, *block0 = NULL;
+
+    if (s->channel_mode != AC3_CHMODE_STEREO)
+        return;
+
+    for (blk = 0; blk < s->num_blocks; blk++) {
+        block = &s->blocks[blk];
+        block->new_rematrixing_strategy = !blk;
+
+        block->num_rematrixing_bands = 4;
+        if (block->cpl_in_use) {
+            block->num_rematrixing_bands -= (s->start_freq[CPL_CH] <= 61);
+            block->num_rematrixing_bands -= (s->start_freq[CPL_CH] == 37);
+            if (blk && block->num_rematrixing_bands != block0->num_rematrixing_bands)
+                block->new_rematrixing_strategy = 1;
+        }
+        nb_coefs = FFMIN(block->end_freq[1], block->end_freq[2]);
+
+        if (!s->rematrixing_enabled) {
+            block0 = block;
+            continue;
+        }
+
+        for (bnd = 0; bnd < block->num_rematrixing_bands; bnd++) {
+            /* calculate sum of squared coeffs for one band in one block */
+            int start = ff_ac3_rematrix_band_tab[bnd];
+            int end   = FFMIN(nb_coefs, ff_ac3_rematrix_band_tab[bnd+1]);
+            CoefSumType sum[4];
+            sum_square_butterfly(s, sum, block->mdct_coef[1] + start,
+                                 block->mdct_coef[2] + start, end - start);
+
+            /* compare sums to determine if rematrixing will be used for this band */
+            if (FFMIN(sum[2], sum[3]) < FFMIN(sum[0], sum[1]))
+                block->rematrixing_flags[bnd] = 1;
+            else
+                block->rematrixing_flags[bnd] = 0;
+
+            /* determine if new rematrixing flags will be sent */
+            if (blk &&
+                block->rematrixing_flags[bnd] != block0->rematrixing_flags[bnd]) {
+                block->new_rematrixing_strategy = 1;
+            }
+        }
+        block0 = block;
+    }
+}
+
+
+int AC3_NAME(encode_frame)(AVCodecContext *avctx, AVPacket *avpkt,
+                           const AVFrame *frame, int *got_packet_ptr)
+{
+    AC3EncodeContext *s = avctx->priv_data;
+    int ret;
+
+    if (s->options.allow_per_frame_metadata) {
+        ret = ff_ac3_validate_metadata(s);
+        if (ret)
+            return ret;
+    }
+
+    if (s->bit_alloc.sr_code == 1 || s->eac3)
+        ff_ac3_adjust_frame_size(s);
+
+    copy_input_samples(s, (SampleType **)frame->extended_data);
+
+    apply_mdct(s);
+
+    if (s->fixed_point)
+        scale_coefficients(s);
+
+    clip_coefficients(&s->adsp, s->blocks[0].mdct_coef[1],
+                      AC3_MAX_COEFS * s->num_blocks * s->channels);
+
+    s->cpl_on = s->cpl_enabled;
+    ff_ac3_compute_coupling_strategy(s);
+
+    if (s->cpl_on)
+        apply_channel_coupling(s);
+
+    compute_rematrixing_strategy(s);
+
+    if (!s->fixed_point)
+        scale_coefficients(s);
+
+    ff_ac3_apply_rematrixing(s);
+
+    ff_ac3_process_exponents(s);
+
+    ret = ff_ac3_compute_bit_allocation(s);
+    if (ret) {
+        av_log(avctx, AV_LOG_ERROR, "Bit allocation failed. Try increasing the bitrate.\n");
+        return ret;
+    }
+
+    ff_ac3_group_exponents(s);
+
+    ff_ac3_quantize_mantissas(s);
+
+    if ((ret = ff_alloc_packet2(avctx, avpkt, s->frame_size, 0)) < 0)
+        return ret;
+    ff_ac3_output_frame(s, avpkt->data);
+
+    if (frame->pts != AV_NOPTS_VALUE)
+        avpkt->pts = frame->pts - ff_samples_to_time_base(avctx, avctx->initial_padding);
+
+    *got_packet_ptr = 1;
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3tab.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3tab.c
new file mode 100644
index 000000000..bd88f32d9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3tab.c
@@ -0,0 +1,334 @@
+/*
+ * AC-3 tables
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * tables taken directly from the AC-3 spec.
+ */
+
+#include "libavutil/channel_layout.h"
+#include "libavutil/mem.h"
+
+#include "avcodec.h"
+#include "ac3tab.h"
+
+/**
+ * Possible frame sizes.
+ * from ATSC A/52 Table 5.18 Frame Size Code Table.
+ */
+const uint16_t ff_ac3_frame_size_tab[38][3] = {
+    { 64,   69,   96   },
+    { 64,   70,   96   },
+    { 80,   87,   120  },
+    { 80,   88,   120  },
+    { 96,   104,  144  },
+    { 96,   105,  144  },
+    { 112,  121,  168  },
+    { 112,  122,  168  },
+    { 128,  139,  192  },
+    { 128,  140,  192  },
+    { 160,  174,  240  },
+    { 160,  175,  240  },
+    { 192,  208,  288  },
+    { 192,  209,  288  },
+    { 224,  243,  336  },
+    { 224,  244,  336  },
+    { 256,  278,  384  },
+    { 256,  279,  384  },
+    { 320,  348,  480  },
+    { 320,  349,  480  },
+    { 384,  417,  576  },
+    { 384,  418,  576  },
+    { 448,  487,  672  },
+    { 448,  488,  672  },
+    { 512,  557,  768  },
+    { 512,  558,  768  },
+    { 640,  696,  960  },
+    { 640,  697,  960  },
+    { 768,  835,  1152 },
+    { 768,  836,  1152 },
+    { 896,  975,  1344 },
+    { 896,  976,  1344 },
+    { 1024, 1114, 1536 },
+    { 1024, 1115, 1536 },
+    { 1152, 1253, 1728 },
+    { 1152, 1254, 1728 },
+    { 1280, 1393, 1920 },
+    { 1280, 1394, 1920 },
+};
+
+/**
+ * Map audio coding mode (acmod) to number of full-bandwidth channels.
+ * from ATSC A/52 Table 5.8 Audio Coding Mode
+ */
+const uint8_t ff_ac3_channels_tab[8] = {
+    2, 1, 2, 3, 3, 4, 4, 5
+};
+
+/**
+ * Map audio coding mode (acmod) to channel layout mask.
+ */
+const uint16_t avpriv_ac3_channel_layout_tab[8] = {
+    AV_CH_LAYOUT_STEREO,
+    AV_CH_LAYOUT_MONO,
+    AV_CH_LAYOUT_STEREO,
+    AV_CH_LAYOUT_SURROUND,
+    AV_CH_LAYOUT_2_1,
+    AV_CH_LAYOUT_4POINT0,
+    AV_CH_LAYOUT_2_2,
+    AV_CH_LAYOUT_5POINT0
+};
+
+#define COMMON_CHANNEL_MAP \
+    { { 0, 1,          }, { 0, 1, 2,         } },\
+    { { 0,             }, { 0, 1,            } },\
+    { { 0, 1,          }, { 0, 1, 2,         } },\
+    { { 0, 2, 1,       }, { 0, 2, 1, 3,      } },\
+    { { 0, 1, 2,       }, { 0, 1, 3, 2,      } },\
+    { { 0, 2, 1, 3,    }, { 0, 2, 1, 4, 3,   } },
+
+/**
+ * Table to remap channels from SMPTE order to AC-3 order.
+ * [channel_mode][lfe][ch]
+ */
+const uint8_t ff_ac3_enc_channel_map[8][2][6] = {
+    COMMON_CHANNEL_MAP
+    { { 0, 1, 2, 3,    }, { 0, 1, 3, 4, 2,   } },
+    { { 0, 2, 1, 3, 4, }, { 0, 2, 1, 4, 5, 3 } },
+};
+
+/**
+ * Table to remap channels from AC-3 order to SMPTE order.
+ * [channel_mode][lfe][ch]
+ */
+const uint8_t ff_ac3_dec_channel_map[8][2][6] = {
+    COMMON_CHANNEL_MAP
+    { { 0, 1, 2, 3,    }, { 0, 1, 4, 2, 3,   } },
+    { { 0, 2, 1, 3, 4, }, { 0, 2, 1, 5, 3, 4 } },
+};
+
+/* possible frequencies */
+const uint16_t ff_ac3_sample_rate_tab[3] = { 48000, 44100, 32000 };
+
+/* possible bitrates */
+const uint16_t ff_ac3_bitrate_tab[19] = {
+    32, 40, 48, 56, 64, 80, 96, 112, 128,
+    160, 192, 224, 256, 320, 384, 448, 512, 576, 640
+};
+
+/**
+ * Table of bin locations for rematrixing bands
+ * reference: Section 7.5.2 Rematrixing : Frequency Band Definitions
+ */
+const uint8_t ff_ac3_rematrix_band_tab[5] = { 13, 25, 37, 61, 253 };
+
+/**
+ * Table E2.16 Default Coupling Banding Structure
+ */
+const uint8_t ff_eac3_default_cpl_band_struct[18] = {
+    0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1
+};
+
+/* AC-3 MDCT window */
+
+/* MDCT window */
+DECLARE_ALIGNED(16, const int16_t, ff_ac3_window)[AC3_WINDOW_SIZE/2] = {
+    4,    7,   12,   16,   21,   28,   34,   42,
+   51,   61,   72,   84,   97,  111,  127,  145,
+  164,  184,  207,  231,  257,  285,  315,  347,
+  382,  419,  458,  500,  544,  591,  641,  694,
+  750,  810,  872,  937, 1007, 1079, 1155, 1235,
+ 1318, 1406, 1497, 1593, 1692, 1796, 1903, 2016,
+ 2132, 2253, 2379, 2509, 2644, 2783, 2927, 3076,
+ 3230, 3389, 3552, 3721, 3894, 4072, 4255, 4444,
+ 4637, 4835, 5038, 5246, 5459, 5677, 5899, 6127,
+ 6359, 6596, 6837, 7083, 7334, 7589, 7848, 8112,
+ 8380, 8652, 8927, 9207, 9491, 9778,10069,10363,
+10660,10960,11264,11570,11879,12190,12504,12820,
+13138,13458,13780,14103,14427,14753,15079,15407,
+15735,16063,16392,16720,17049,17377,17705,18032,
+18358,18683,19007,19330,19651,19970,20287,20602,
+20914,21225,21532,21837,22139,22438,22733,23025,
+23314,23599,23880,24157,24430,24699,24964,25225,
+25481,25732,25979,26221,26459,26691,26919,27142,
+27359,27572,27780,27983,28180,28373,28560,28742,
+28919,29091,29258,29420,29577,29729,29876,30018,
+30155,30288,30415,30538,30657,30771,30880,30985,
+31086,31182,31274,31363,31447,31528,31605,31678,
+31747,31814,31877,31936,31993,32046,32097,32145,
+32190,32232,32272,32310,32345,32378,32409,32438,
+32465,32490,32513,32535,32556,32574,32592,32608,
+32623,32636,32649,32661,32671,32681,32690,32698,
+32705,32712,32718,32724,32729,32733,32737,32741,
+32744,32747,32750,32752,32754,32756,32757,32759,
+32760,32761,32762,32763,32764,32764,32765,32765,
+32766,32766,32766,32766,32767,32767,32767,32767,
+32767,32767,32767,32767,32767,32767,32767,32767,
+32767,32767,32767,32767,32767,32767,32767,32767,
+};
+
+const uint8_t ff_ac3_log_add_tab[260]= {
+0x40,0x3f,0x3e,0x3d,0x3c,0x3b,0x3a,0x39,0x38,0x37,
+0x36,0x35,0x34,0x34,0x33,0x32,0x31,0x30,0x2f,0x2f,
+0x2e,0x2d,0x2c,0x2c,0x2b,0x2a,0x29,0x29,0x28,0x27,
+0x26,0x26,0x25,0x24,0x24,0x23,0x23,0x22,0x21,0x21,
+0x20,0x20,0x1f,0x1e,0x1e,0x1d,0x1d,0x1c,0x1c,0x1b,
+0x1b,0x1a,0x1a,0x19,0x19,0x18,0x18,0x17,0x17,0x16,
+0x16,0x15,0x15,0x15,0x14,0x14,0x13,0x13,0x13,0x12,
+0x12,0x12,0x11,0x11,0x11,0x10,0x10,0x10,0x0f,0x0f,
+0x0f,0x0e,0x0e,0x0e,0x0d,0x0d,0x0d,0x0d,0x0c,0x0c,
+0x0c,0x0c,0x0b,0x0b,0x0b,0x0b,0x0a,0x0a,0x0a,0x0a,
+0x0a,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x08,
+0x08,0x08,0x07,0x07,0x07,0x07,0x07,0x07,0x06,0x06,
+0x06,0x06,0x06,0x06,0x06,0x06,0x05,0x05,0x05,0x05,
+0x05,0x05,0x05,0x05,0x04,0x04,0x04,0x04,0x04,0x04,
+0x04,0x04,0x04,0x04,0x04,0x03,0x03,0x03,0x03,0x03,
+0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x02,
+0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,
+0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x01,0x01,
+0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
+0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
+0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+};
+
+const uint16_t ff_ac3_hearing_threshold_tab[AC3_CRITICAL_BANDS][3]= {
+{ 0x04d0,0x04f0,0x0580 },
+{ 0x04d0,0x04f0,0x0580 },
+{ 0x0440,0x0460,0x04b0 },
+{ 0x0400,0x0410,0x0450 },
+{ 0x03e0,0x03e0,0x0420 },
+{ 0x03c0,0x03d0,0x03f0 },
+{ 0x03b0,0x03c0,0x03e0 },
+{ 0x03b0,0x03b0,0x03d0 },
+{ 0x03a0,0x03b0,0x03c0 },
+{ 0x03a0,0x03a0,0x03b0 },
+{ 0x03a0,0x03a0,0x03b0 },
+{ 0x03a0,0x03a0,0x03b0 },
+{ 0x03a0,0x03a0,0x03a0 },
+{ 0x0390,0x03a0,0x03a0 },
+{ 0x0390,0x0390,0x03a0 },
+{ 0x0390,0x0390,0x03a0 },
+{ 0x0380,0x0390,0x03a0 },
+{ 0x0380,0x0380,0x03a0 },
+{ 0x0370,0x0380,0x03a0 },
+{ 0x0370,0x0380,0x03a0 },
+{ 0x0360,0x0370,0x0390 },
+{ 0x0360,0x0370,0x0390 },
+{ 0x0350,0x0360,0x0390 },
+{ 0x0350,0x0360,0x0390 },
+{ 0x0340,0x0350,0x0380 },
+{ 0x0340,0x0350,0x0380 },
+{ 0x0330,0x0340,0x0380 },
+{ 0x0320,0x0340,0x0370 },
+{ 0x0310,0x0320,0x0360 },
+{ 0x0300,0x0310,0x0350 },
+{ 0x02f0,0x0300,0x0340 },
+{ 0x02f0,0x02f0,0x0330 },
+{ 0x02f0,0x02f0,0x0320 },
+{ 0x02f0,0x02f0,0x0310 },
+{ 0x0300,0x02f0,0x0300 },
+{ 0x0310,0x0300,0x02f0 },
+{ 0x0340,0x0320,0x02f0 },
+{ 0x0390,0x0350,0x02f0 },
+{ 0x03e0,0x0390,0x0300 },
+{ 0x0420,0x03e0,0x0310 },
+{ 0x0460,0x0420,0x0330 },
+{ 0x0490,0x0450,0x0350 },
+{ 0x04a0,0x04a0,0x03c0 },
+{ 0x0460,0x0490,0x0410 },
+{ 0x0440,0x0460,0x0470 },
+{ 0x0440,0x0440,0x04a0 },
+{ 0x0520,0x0480,0x0460 },
+{ 0x0800,0x0630,0x0440 },
+{ 0x0840,0x0840,0x0450 },
+{ 0x0840,0x0840,0x04e0 },
+};
+
+const uint8_t ff_ac3_bap_tab[64]= {
+    0, 1, 1, 1, 1, 1, 2, 2, 3, 3,
+    3, 4, 4, 5, 5, 6, 6, 6, 6, 7,
+    7, 7, 7, 8, 8, 8, 8, 9, 9, 9,
+    9, 10, 10, 10, 10, 11, 11, 11, 11, 12,
+    12, 12, 12, 13, 13, 13, 13, 14, 14, 14,
+    14, 14, 14, 14, 14, 15, 15, 15, 15, 15,
+    15, 15, 15, 15,
+};
+
+const uint8_t ff_ac3_slow_decay_tab[4]={
+    0x0f, 0x11, 0x13, 0x15,
+};
+
+const uint8_t ff_ac3_fast_decay_tab[4]={
+    0x3f, 0x53, 0x67, 0x7b,
+};
+
+const uint16_t ff_ac3_slow_gain_tab[4]= {
+    0x540, 0x4d8, 0x478, 0x410,
+};
+
+const uint16_t ff_ac3_db_per_bit_tab[4]= {
+    0x000, 0x700, 0x900, 0xb00,
+};
+
+const int16_t ff_ac3_floor_tab[8]= {
+    0x2f0, 0x2b0, 0x270, 0x230, 0x1f0, 0x170, 0x0f0, 0xf800,
+};
+
+const uint16_t ff_ac3_fast_gain_tab[8]= {
+    0x080, 0x100, 0x180, 0x200, 0x280, 0x300, 0x380, 0x400,
+};
+
+/**
+ * Default channel map for a dependent substream defined by acmod
+ */
+const uint16_t ff_eac3_default_chmap[8] = {
+    AC3_CHMAP_L |               AC3_CHMAP_R, // FIXME Ch1+Ch2
+                  AC3_CHMAP_C,
+    AC3_CHMAP_L |               AC3_CHMAP_R,
+    AC3_CHMAP_L | AC3_CHMAP_C | AC3_CHMAP_R,
+    AC3_CHMAP_L |               AC3_CHMAP_R |                   AC3_CHMAP_C_SUR,
+    AC3_CHMAP_L | AC3_CHMAP_C | AC3_CHMAP_R |                   AC3_CHMAP_C_SUR,
+    AC3_CHMAP_L |               AC3_CHMAP_R | AC3_CHMAP_L_SUR |                  AC3_CHMAP_R_SUR,
+    AC3_CHMAP_L | AC3_CHMAP_C | AC3_CHMAP_R | AC3_CHMAP_L_SUR |                  AC3_CHMAP_R_SUR
+};
+const uint64_t ff_eac3_custom_channel_map_locations[16][2] = {
+    { 1, AV_CH_FRONT_LEFT },
+    { 1, AV_CH_FRONT_CENTER },
+    { 1, AV_CH_FRONT_RIGHT },
+    { 1, AV_CH_SIDE_LEFT },
+    { 1, AV_CH_SIDE_RIGHT },
+    { 0, AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER },
+    { 0, AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT },
+    { 0, AV_CH_BACK_CENTER },
+    { 0, AV_CH_TOP_CENTER },
+    { 0, AV_CH_SURROUND_DIRECT_LEFT | AV_CH_SURROUND_DIRECT_RIGHT },
+    { 0, AV_CH_WIDE_LEFT | AV_CH_WIDE_RIGHT },
+    { 0, AV_CH_TOP_FRONT_LEFT | AV_CH_TOP_FRONT_RIGHT},
+    { 0, AV_CH_TOP_FRONT_CENTER },
+    { 0, AV_CH_TOP_BACK_LEFT | AV_CH_TOP_BACK_RIGHT },
+    { 0, AV_CH_LOW_FREQUENCY_2 },
+    { 1, AV_CH_LOW_FREQUENCY },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3tab.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3tab.h
new file mode 100644
index 000000000..aa71acbce
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ac3tab.h
@@ -0,0 +1,71 @@
+/*
+ * AC-3 tables
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AC3TAB_H
+#define AVCODEC_AC3TAB_H
+
+#include <stdint.h>
+
+#include "libavutil/internal.h"
+#include "ac3.h"
+#include "internal.h"
+
+extern const uint16_t ff_ac3_frame_size_tab[38][3];
+extern const uint8_t  ff_ac3_channels_tab[8];
+extern av_export_avcodec const uint16_t avpriv_ac3_channel_layout_tab[8];
+extern const uint8_t  ff_ac3_enc_channel_map[8][2][6];
+extern const uint8_t  ff_ac3_dec_channel_map[8][2][6];
+extern const uint16_t ff_ac3_sample_rate_tab[3];
+extern const uint16_t ff_ac3_bitrate_tab[19];
+extern const uint8_t  ff_ac3_rematrix_band_tab[5];
+extern const uint8_t  ff_eac3_default_cpl_band_struct[18];
+extern const int16_t  ff_ac3_window[AC3_WINDOW_SIZE/2];
+extern const uint8_t  ff_ac3_log_add_tab[260];
+extern const uint16_t ff_ac3_hearing_threshold_tab[AC3_CRITICAL_BANDS][3];
+extern const uint8_t  ff_ac3_bap_tab[64];
+extern const uint8_t  ff_ac3_slow_decay_tab[4];
+extern const uint8_t  ff_ac3_fast_decay_tab[4];
+extern const uint16_t ff_ac3_slow_gain_tab[4];
+extern const uint16_t ff_ac3_db_per_bit_tab[4];
+extern const int16_t  ff_ac3_floor_tab[8];
+extern const uint16_t ff_ac3_fast_gain_tab[8];
+extern const uint16_t ff_eac3_default_chmap[8];
+extern const uint8_t  ff_ac3_band_start_tab[AC3_CRITICAL_BANDS+1];
+extern const uint8_t  ff_ac3_bin_to_band_tab[253];
+extern const uint64_t ff_eac3_custom_channel_map_locations[16][2];
+
+
+/** Custom channel map locations bitmask
+ *  Other channels described in documentation:
+ *      Lc/Rc pair, Lrs/Rrs pair, Ts, Lsd/Rsd pair,
+ *      Lw/Rw pair, Lvh/Rvh pair, Cvh, Reserved, LFE2
+ */
+enum CustomChannelMapLocation{
+    AC3_CHMAP_L=        1<<(15-0),
+    AC3_CHMAP_C=        1<<(15-1),
+    AC3_CHMAP_R=        1<<(15-2),
+    AC3_CHMAP_L_SUR=    1<<(15-3),
+    AC3_CHMAP_R_SUR =   1<<(15-4),
+    AC3_CHMAP_C_SUR=    1<<(15-7),
+    AC3_CHMAP_LFE =     1<<(15-15)
+};
+
+#endif /* AVCODEC_AC3TAB_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/adts_header.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/adts_header.c
new file mode 100644
index 000000000..0889820f8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/adts_header.c
@@ -0,0 +1,71 @@
+/*
+ * Audio and Video frame extraction
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ * Copyright (c) 2009 Alex Converse
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "aac_ac3_parser.h"
+#include "adts_header.h"
+#include "adts_parser.h"
+#include "get_bits.h"
+#include "mpeg4audio.h"
+
+int ff_adts_header_parse(GetBitContext *gbc, AACADTSHeaderInfo *hdr)
+{
+    int size, rdb, ch, sr;
+    int aot, crc_abs;
+
+    if (get_bits(gbc, 12) != 0xfff)
+        return AAC_AC3_PARSE_ERROR_SYNC;
+
+    skip_bits1(gbc);             /* id */
+    skip_bits(gbc, 2);           /* layer */
+    crc_abs = get_bits1(gbc);    /* protection_absent */
+    aot     = get_bits(gbc, 2);  /* profile_objecttype */
+    sr      = get_bits(gbc, 4);  /* sample_frequency_index */
+    if (!avpriv_mpeg4audio_sample_rates[sr])
+        return AAC_AC3_PARSE_ERROR_SAMPLE_RATE;
+    skip_bits1(gbc);             /* private_bit */
+    ch = get_bits(gbc, 3);       /* channel_configuration */
+
+    skip_bits1(gbc);             /* original/copy */
+    skip_bits1(gbc);             /* home */
+
+    /* adts_variable_header */
+    skip_bits1(gbc);             /* copyright_identification_bit */
+    skip_bits1(gbc);             /* copyright_identification_start */
+    size = get_bits(gbc, 13);    /* aac_frame_length */
+    if (size < AV_AAC_ADTS_HEADER_SIZE)
+        return AAC_AC3_PARSE_ERROR_FRAME_SIZE;
+
+    skip_bits(gbc, 11);          /* adts_buffer_fullness */
+    rdb = get_bits(gbc, 2);      /* number_of_raw_data_blocks_in_frame */
+
+    hdr->object_type    = aot + 1;
+    hdr->chan_config    = ch;
+    hdr->crc_absent     = crc_abs;
+    hdr->num_aac_frames = rdb + 1;
+    hdr->sampling_index = sr;
+    hdr->sample_rate    = avpriv_mpeg4audio_sample_rates[sr];
+    hdr->samples        = (rdb + 1) * 1024;
+    hdr->bit_rate       = size * 8 * hdr->sample_rate / hdr->samples;
+
+    return size;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/adts_header.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/adts_header.h
new file mode 100644
index 000000000..f615f6a9f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/adts_header.h
@@ -0,0 +1,50 @@
+/*
+ * AAC ADTS header decoding prototypes and structures
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_ADTS_HEADER_H
+#define AVCODEC_ADTS_HEADER_H
+
+#include "get_bits.h"
+
+typedef struct AACADTSHeaderInfo {
+    uint32_t sample_rate;
+    uint32_t samples;
+    uint32_t bit_rate;
+    uint8_t  crc_absent;
+    uint8_t  object_type;
+    uint8_t  sampling_index;
+    uint8_t  chan_config;
+    uint8_t  num_aac_frames;
+} AACADTSHeaderInfo;
+
+/**
+ * Parse the ADTS frame header to the end of the variable header, which is
+ * the first 54 bits.
+ * @param[in]  gbc BitContext containing the first 54 bits of the frame.
+ * @param[out] hdr Pointer to struct where header info is written.
+ * @return Returns 0 on success, -1 if there is a sync word mismatch,
+ * -2 if the version element is invalid, -3 if the sample rate
+ * element is invalid, or -4 if the bit rate element is invalid.
+ */
+int ff_adts_header_parse(GetBitContext *gbc, AACADTSHeaderInfo *hdr);
+
+#endif /* AVCODEC_ADTS_HEADER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/adts_parser.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/adts_parser.c
new file mode 100644
index 000000000..5c9f8ff6f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/adts_parser.c
@@ -0,0 +1,44 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "adts_header.h"
+#include "adts_parser.h"
+
+int av_adts_header_parse(const uint8_t *buf, uint32_t *samples, uint8_t *frames)
+{
+#if CONFIG_ADTS_HEADER
+    GetBitContext gb;
+    AACADTSHeaderInfo hdr;
+    int err = init_get_bits8(&gb, buf, AV_AAC_ADTS_HEADER_SIZE);
+    if (err < 0)
+        return err;
+    err = ff_adts_header_parse(&gb, &hdr);
+    if (err < 0)
+        return err;
+    *samples = hdr.samples;
+    *frames  = hdr.num_aac_frames;
+    return 0;
+#else
+    return AVERROR(ENOSYS);
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/adts_parser.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/adts_parser.h
new file mode 100644
index 000000000..f85becd13
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/adts_parser.h
@@ -0,0 +1,37 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_ADTS_PARSER_H
+#define AVCODEC_ADTS_PARSER_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define AV_AAC_ADTS_HEADER_SIZE 7
+
+/**
+ * Extract the number of samples and frames from AAC data.
+ * @param[in]  buf     pointer to AAC data buffer
+ * @param[out] samples Pointer to where number of samples is written
+ * @param[out] frames  Pointer to where number of frames is written
+ * @return Returns 0 on success, error code on failure.
+ */
+int av_adts_header_parse(const uint8_t *buf, uint32_t *samples,
+                         uint8_t *frames);
+
+#endif /* AVCODEC_ADTS_PARSER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/allcodecs.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/allcodecs.c
new file mode 100644
index 000000000..d2f9a39ce
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/allcodecs.c
@@ -0,0 +1,921 @@
+/*
+ * Provide registration of all codecs, parsers and bitstream filters for libavcodec.
+ * Copyright (c) 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Provide registration of all codecs, parsers and bitstream filters for libavcodec.
+ */
+
+#include "config.h"
+#include "libavutil/thread.h"
+#include "avcodec.h"
+#include "version.h"
+
+extern AVCodec ff_a64multi_encoder;
+extern AVCodec ff_a64multi5_encoder;
+extern AVCodec ff_aasc_decoder;
+extern AVCodec ff_aic_decoder;
+extern AVCodec ff_alias_pix_encoder;
+extern AVCodec ff_alias_pix_decoder;
+extern AVCodec ff_agm_decoder;
+extern AVCodec ff_amv_encoder;
+extern AVCodec ff_amv_decoder;
+extern AVCodec ff_anm_decoder;
+extern AVCodec ff_ansi_decoder;
+extern AVCodec ff_apng_encoder;
+extern AVCodec ff_apng_decoder;
+extern AVCodec ff_arbc_decoder;
+extern AVCodec ff_asv1_encoder;
+extern AVCodec ff_asv1_decoder;
+extern AVCodec ff_asv2_encoder;
+extern AVCodec ff_asv2_decoder;
+extern AVCodec ff_aura_decoder;
+extern AVCodec ff_aura2_decoder;
+extern AVCodec ff_avrp_encoder;
+extern AVCodec ff_avrp_decoder;
+extern AVCodec ff_avrn_decoder;
+extern AVCodec ff_avs_decoder;
+extern AVCodec ff_avui_encoder;
+extern AVCodec ff_avui_decoder;
+extern AVCodec ff_ayuv_encoder;
+extern AVCodec ff_ayuv_decoder;
+extern AVCodec ff_bethsoftvid_decoder;
+extern AVCodec ff_bfi_decoder;
+extern AVCodec ff_bink_decoder;
+extern AVCodec ff_bitpacked_decoder;
+extern AVCodec ff_bmp_encoder;
+extern AVCodec ff_bmp_decoder;
+extern AVCodec ff_bmv_video_decoder;
+extern AVCodec ff_brender_pix_decoder;
+extern AVCodec ff_c93_decoder;
+extern AVCodec ff_cavs_decoder;
+extern AVCodec ff_cdgraphics_decoder;
+extern AVCodec ff_cdxl_decoder;
+extern AVCodec ff_cfhd_decoder;
+extern AVCodec ff_cinepak_encoder;
+extern AVCodec ff_cinepak_decoder;
+extern AVCodec ff_clearvideo_decoder;
+extern AVCodec ff_cljr_encoder;
+extern AVCodec ff_cljr_decoder;
+extern AVCodec ff_cllc_decoder;
+extern AVCodec ff_comfortnoise_encoder;
+extern AVCodec ff_comfortnoise_decoder;
+extern AVCodec ff_cpia_decoder;
+extern AVCodec ff_cscd_decoder;
+extern AVCodec ff_cyuv_decoder;
+extern AVCodec ff_dds_decoder;
+extern AVCodec ff_dfa_decoder;
+extern AVCodec ff_dirac_decoder;
+extern AVCodec ff_dnxhd_encoder;
+extern AVCodec ff_dnxhd_decoder;
+extern AVCodec ff_dpx_encoder;
+extern AVCodec ff_dpx_decoder;
+extern AVCodec ff_dsicinvideo_decoder;
+extern AVCodec ff_dvaudio_decoder;
+extern AVCodec ff_dvvideo_encoder;
+extern AVCodec ff_dvvideo_decoder;
+extern AVCodec ff_dxa_decoder;
+extern AVCodec ff_dxtory_decoder;
+extern AVCodec ff_dxv_decoder;
+extern AVCodec ff_eacmv_decoder;
+extern AVCodec ff_eamad_decoder;
+extern AVCodec ff_eatgq_decoder;
+extern AVCodec ff_eatgv_decoder;
+extern AVCodec ff_eatqi_decoder;
+extern AVCodec ff_eightbps_decoder;
+extern AVCodec ff_eightsvx_exp_decoder;
+extern AVCodec ff_eightsvx_fib_decoder;
+extern AVCodec ff_escape124_decoder;
+extern AVCodec ff_escape130_decoder;
+extern AVCodec ff_exr_decoder;
+extern AVCodec ff_ffv1_encoder;
+extern AVCodec ff_ffv1_decoder;
+extern AVCodec ff_ffvhuff_encoder;
+extern AVCodec ff_ffvhuff_decoder;
+extern AVCodec ff_fic_decoder;
+extern AVCodec ff_fits_encoder;
+extern AVCodec ff_fits_decoder;
+extern AVCodec ff_flashsv_encoder;
+extern AVCodec ff_flashsv_decoder;
+extern AVCodec ff_flashsv2_encoder;
+extern AVCodec ff_flashsv2_decoder;
+extern AVCodec ff_flic_decoder;
+extern AVCodec ff_flv_encoder;
+extern AVCodec ff_flv_decoder;
+extern AVCodec ff_fmvc_decoder;
+extern AVCodec ff_fourxm_decoder;
+extern AVCodec ff_fraps_decoder;
+extern AVCodec ff_frwu_decoder;
+extern AVCodec ff_g2m_decoder;
+extern AVCodec ff_gdv_decoder;
+extern AVCodec ff_gif_encoder;
+extern AVCodec ff_gif_decoder;
+extern AVCodec ff_h261_encoder;
+extern AVCodec ff_h261_decoder;
+extern AVCodec ff_h263_encoder;
+extern AVCodec ff_h263_decoder;
+extern AVCodec ff_h263i_decoder;
+extern AVCodec ff_h263p_encoder;
+extern AVCodec ff_h263p_decoder;
+extern AVCodec ff_h263_v4l2m2m_decoder;
+extern AVCodec ff_h264_decoder;
+extern AVCodec ff_h264_crystalhd_decoder;
+extern AVCodec ff_h264_v4l2m2m_decoder;
+extern AVCodec ff_h264_mediacodec_decoder;
+extern AVCodec ff_h264_mmal_decoder;
+extern AVCodec ff_h264_qsv_decoder;
+extern AVCodec ff_h264_rkmpp_decoder;
+extern AVCodec ff_hap_encoder;
+extern AVCodec ff_hap_decoder;
+extern AVCodec ff_hevc_decoder;
+extern AVCodec ff_hevc_qsv_decoder;
+extern AVCodec ff_hevc_rkmpp_decoder;
+extern AVCodec ff_hevc_v4l2m2m_decoder;
+extern AVCodec ff_hnm4_video_decoder;
+extern AVCodec ff_hq_hqa_decoder;
+extern AVCodec ff_hqx_decoder;
+extern AVCodec ff_huffyuv_encoder;
+extern AVCodec ff_huffyuv_decoder;
+extern AVCodec ff_hymt_decoder;
+extern AVCodec ff_idcin_decoder;
+extern AVCodec ff_iff_ilbm_decoder;
+extern AVCodec ff_imm4_decoder;
+extern AVCodec ff_indeo2_decoder;
+extern AVCodec ff_indeo3_decoder;
+extern AVCodec ff_indeo4_decoder;
+extern AVCodec ff_indeo5_decoder;
+extern AVCodec ff_interplay_video_decoder;
+extern AVCodec ff_jpeg2000_encoder;
+extern AVCodec ff_jpeg2000_decoder;
+extern AVCodec ff_jpegls_encoder;
+extern AVCodec ff_jpegls_decoder;
+extern AVCodec ff_jv_decoder;
+extern AVCodec ff_kgv1_decoder;
+extern AVCodec ff_kmvc_decoder;
+extern AVCodec ff_lagarith_decoder;
+extern AVCodec ff_ljpeg_encoder;
+extern AVCodec ff_loco_decoder;
+extern AVCodec ff_lscr_decoder;
+extern AVCodec ff_m101_decoder;
+extern AVCodec ff_magicyuv_encoder;
+extern AVCodec ff_magicyuv_decoder;
+extern AVCodec ff_mdec_decoder;
+extern AVCodec ff_mimic_decoder;
+extern AVCodec ff_mjpeg_encoder;
+extern AVCodec ff_mjpeg_decoder;
+extern AVCodec ff_mjpegb_decoder;
+extern AVCodec ff_mmvideo_decoder;
+extern AVCodec ff_motionpixels_decoder;
+extern AVCodec ff_mpeg1video_encoder;
+extern AVCodec ff_mpeg1video_decoder;
+extern AVCodec ff_mpeg2video_encoder;
+extern AVCodec ff_mpeg2video_decoder;
+extern AVCodec ff_mpeg4_encoder;
+extern AVCodec ff_mpeg4_decoder;
+extern AVCodec ff_mpeg4_crystalhd_decoder;
+extern AVCodec ff_mpeg4_v4l2m2m_decoder;
+extern AVCodec ff_mpeg4_mmal_decoder;
+extern AVCodec ff_mpegvideo_decoder;
+extern AVCodec ff_mpeg1_v4l2m2m_decoder;
+extern AVCodec ff_mpeg2_mmal_decoder;
+extern AVCodec ff_mpeg2_crystalhd_decoder;
+extern AVCodec ff_mpeg2_v4l2m2m_decoder;
+extern AVCodec ff_mpeg2_qsv_decoder;
+extern AVCodec ff_mpeg2_mediacodec_decoder;
+extern AVCodec ff_msa1_decoder;
+extern AVCodec ff_mscc_decoder;
+extern AVCodec ff_msmpeg4v1_decoder;
+extern AVCodec ff_msmpeg4v2_encoder;
+extern AVCodec ff_msmpeg4v2_decoder;
+extern AVCodec ff_msmpeg4v3_encoder;
+extern AVCodec ff_msmpeg4v3_decoder;
+extern AVCodec ff_msmpeg4_crystalhd_decoder;
+extern AVCodec ff_msrle_decoder;
+extern AVCodec ff_mss1_decoder;
+extern AVCodec ff_mss2_decoder;
+extern AVCodec ff_msvideo1_encoder;
+extern AVCodec ff_msvideo1_decoder;
+extern AVCodec ff_mszh_decoder;
+extern AVCodec ff_mts2_decoder;
+extern AVCodec ff_mvc1_decoder;
+extern AVCodec ff_mvc2_decoder;
+extern AVCodec ff_mwsc_decoder;
+extern AVCodec ff_mxpeg_decoder;
+extern AVCodec ff_nuv_decoder;
+extern AVCodec ff_paf_video_decoder;
+extern AVCodec ff_pam_encoder;
+extern AVCodec ff_pam_decoder;
+extern AVCodec ff_pbm_encoder;
+extern AVCodec ff_pbm_decoder;
+extern AVCodec ff_pcx_encoder;
+extern AVCodec ff_pcx_decoder;
+extern AVCodec ff_pgm_encoder;
+extern AVCodec ff_pgm_decoder;
+extern AVCodec ff_pgmyuv_encoder;
+extern AVCodec ff_pgmyuv_decoder;
+extern AVCodec ff_pictor_decoder;
+extern AVCodec ff_pixlet_decoder;
+extern AVCodec ff_png_encoder;
+extern AVCodec ff_png_decoder;
+extern AVCodec ff_ppm_encoder;
+extern AVCodec ff_ppm_decoder;
+extern AVCodec ff_prores_encoder;
+extern AVCodec ff_prores_decoder;
+extern AVCodec ff_prores_aw_encoder;
+extern AVCodec ff_prores_ks_encoder;
+extern AVCodec ff_prosumer_decoder;
+extern AVCodec ff_psd_decoder;
+extern AVCodec ff_ptx_decoder;
+extern AVCodec ff_qdraw_decoder;
+extern AVCodec ff_qpeg_decoder;
+extern AVCodec ff_qtrle_encoder;
+extern AVCodec ff_qtrle_decoder;
+extern AVCodec ff_r10k_encoder;
+extern AVCodec ff_r10k_decoder;
+extern AVCodec ff_r210_encoder;
+extern AVCodec ff_r210_decoder;
+extern AVCodec ff_rasc_decoder;
+extern AVCodec ff_rawvideo_encoder;
+extern AVCodec ff_rawvideo_decoder;
+extern AVCodec ff_rl2_decoder;
+extern AVCodec ff_roq_encoder;
+extern AVCodec ff_roq_decoder;
+extern AVCodec ff_rpza_decoder;
+extern AVCodec ff_rscc_decoder;
+extern AVCodec ff_rv10_encoder;
+extern AVCodec ff_rv10_decoder;
+extern AVCodec ff_rv20_encoder;
+extern AVCodec ff_rv20_decoder;
+extern AVCodec ff_rv30_decoder;
+extern AVCodec ff_rv40_decoder;
+extern AVCodec ff_s302m_encoder;
+extern AVCodec ff_s302m_decoder;
+extern AVCodec ff_sanm_decoder;
+extern AVCodec ff_scpr_decoder;
+extern AVCodec ff_screenpresso_decoder;
+extern AVCodec ff_sdx2_dpcm_decoder;
+extern AVCodec ff_sgi_encoder;
+extern AVCodec ff_sgi_decoder;
+extern AVCodec ff_sgirle_decoder;
+extern AVCodec ff_sheervideo_decoder;
+extern AVCodec ff_smacker_decoder;
+extern AVCodec ff_smc_decoder;
+extern AVCodec ff_smvjpeg_decoder;
+extern AVCodec ff_snow_encoder;
+extern AVCodec ff_snow_decoder;
+extern AVCodec ff_sp5x_decoder;
+extern AVCodec ff_speedhq_decoder;
+extern AVCodec ff_srgc_decoder;
+extern AVCodec ff_sunrast_encoder;
+extern AVCodec ff_sunrast_decoder;
+extern AVCodec ff_svq1_encoder;
+extern AVCodec ff_svq1_decoder;
+extern AVCodec ff_svq3_decoder;
+extern AVCodec ff_targa_encoder;
+extern AVCodec ff_targa_decoder;
+extern AVCodec ff_targa_y216_decoder;
+extern AVCodec ff_tdsc_decoder;
+extern AVCodec ff_theora_decoder;
+extern AVCodec ff_thp_decoder;
+extern AVCodec ff_tiertexseqvideo_decoder;
+extern AVCodec ff_tiff_encoder;
+extern AVCodec ff_tiff_decoder;
+extern AVCodec ff_tmv_decoder;
+extern AVCodec ff_truemotion1_decoder;
+extern AVCodec ff_truemotion2_decoder;
+extern AVCodec ff_truemotion2rt_decoder;
+extern AVCodec ff_tscc_decoder;
+extern AVCodec ff_tscc2_decoder;
+extern AVCodec ff_txd_decoder;
+extern AVCodec ff_ulti_decoder;
+extern AVCodec ff_utvideo_encoder;
+extern AVCodec ff_utvideo_decoder;
+extern AVCodec ff_v210_encoder;
+extern AVCodec ff_v210_decoder;
+extern AVCodec ff_v210x_decoder;
+extern AVCodec ff_v308_encoder;
+extern AVCodec ff_v308_decoder;
+extern AVCodec ff_v408_encoder;
+extern AVCodec ff_v408_decoder;
+extern AVCodec ff_v410_encoder;
+extern AVCodec ff_v410_decoder;
+extern AVCodec ff_vb_decoder;
+extern AVCodec ff_vble_decoder;
+extern AVCodec ff_vc1_decoder;
+extern AVCodec ff_vc1_crystalhd_decoder;
+extern AVCodec ff_vc1image_decoder;
+extern AVCodec ff_vc1_mmal_decoder;
+extern AVCodec ff_vc1_qsv_decoder;
+extern AVCodec ff_vc1_v4l2m2m_decoder;
+extern AVCodec ff_vc2_encoder;
+extern AVCodec ff_vcr1_decoder;
+extern AVCodec ff_vmdvideo_decoder;
+extern AVCodec ff_vmnc_decoder;
+extern AVCodec ff_vp3_decoder;
+extern AVCodec ff_vp4_decoder;
+extern AVCodec ff_vp5_decoder;
+extern AVCodec ff_vp6_decoder;
+extern AVCodec ff_vp6a_decoder;
+extern AVCodec ff_vp6f_decoder;
+extern AVCodec ff_vp7_decoder;
+extern AVCodec ff_vp8_decoder;
+extern AVCodec ff_vp8_rkmpp_decoder;
+extern AVCodec ff_vp8_v4l2m2m_decoder;
+extern AVCodec ff_vp9_decoder;
+extern AVCodec ff_vp9_rkmpp_decoder;
+extern AVCodec ff_vp9_v4l2m2m_decoder;
+extern AVCodec ff_vqa_decoder;
+extern AVCodec ff_webp_decoder;
+extern AVCodec ff_wcmv_decoder;
+extern AVCodec ff_wrapped_avframe_encoder;
+extern AVCodec ff_wrapped_avframe_decoder;
+extern AVCodec ff_wmv1_encoder;
+extern AVCodec ff_wmv1_decoder;
+extern AVCodec ff_wmv2_encoder;
+extern AVCodec ff_wmv2_decoder;
+extern AVCodec ff_wmv3_decoder;
+extern AVCodec ff_wmv3_crystalhd_decoder;
+extern AVCodec ff_wmv3image_decoder;
+extern AVCodec ff_wnv1_decoder;
+extern AVCodec ff_xan_wc3_decoder;
+extern AVCodec ff_xan_wc4_decoder;
+extern AVCodec ff_xbm_encoder;
+extern AVCodec ff_xbm_decoder;
+extern AVCodec ff_xface_encoder;
+extern AVCodec ff_xface_decoder;
+extern AVCodec ff_xl_decoder;
+extern AVCodec ff_xpm_decoder;
+extern AVCodec ff_xwd_encoder;
+extern AVCodec ff_xwd_decoder;
+extern AVCodec ff_y41p_encoder;
+extern AVCodec ff_y41p_decoder;
+extern AVCodec ff_ylc_decoder;
+extern AVCodec ff_yop_decoder;
+extern AVCodec ff_yuv4_encoder;
+extern AVCodec ff_yuv4_decoder;
+extern AVCodec ff_zero12v_decoder;
+extern AVCodec ff_zerocodec_decoder;
+extern AVCodec ff_zlib_encoder;
+extern AVCodec ff_zlib_decoder;
+extern AVCodec ff_zmbv_encoder;
+extern AVCodec ff_zmbv_decoder;
+
+/* audio codecs */
+extern AVCodec ff_aac_encoder;
+extern AVCodec ff_aac_decoder;
+extern AVCodec ff_aac_fixed_decoder;
+extern AVCodec ff_aac_latm_decoder;
+extern AVCodec ff_ac3_encoder;
+extern AVCodec ff_ac3_decoder;
+extern AVCodec ff_ac3_fixed_encoder;
+extern AVCodec ff_ac3_fixed_decoder;
+extern AVCodec ff_alac_encoder;
+extern AVCodec ff_alac_decoder;
+extern AVCodec ff_als_decoder;
+extern AVCodec ff_amrnb_decoder;
+extern AVCodec ff_amrwb_decoder;
+extern AVCodec ff_ape_decoder;
+extern AVCodec ff_aptx_encoder;
+extern AVCodec ff_aptx_decoder;
+extern AVCodec ff_aptx_hd_encoder;
+extern AVCodec ff_aptx_hd_decoder;
+extern AVCodec ff_atrac1_decoder;
+extern AVCodec ff_atrac3_decoder;
+extern AVCodec ff_atrac3al_decoder;
+extern AVCodec ff_atrac3p_decoder;
+extern AVCodec ff_atrac3pal_decoder;
+extern AVCodec ff_atrac9_decoder;
+extern AVCodec ff_binkaudio_dct_decoder;
+extern AVCodec ff_binkaudio_rdft_decoder;
+extern AVCodec ff_bmv_audio_decoder;
+extern AVCodec ff_cook_decoder;
+extern AVCodec ff_dca_encoder;
+extern AVCodec ff_dca_decoder;
+extern AVCodec ff_dolby_e_decoder;
+extern AVCodec ff_dsd_lsbf_decoder;
+extern AVCodec ff_dsd_msbf_decoder;
+extern AVCodec ff_dsd_lsbf_planar_decoder;
+extern AVCodec ff_dsd_msbf_planar_decoder;
+extern AVCodec ff_dsicinaudio_decoder;
+extern AVCodec ff_dss_sp_decoder;
+extern AVCodec ff_dst_decoder;
+extern AVCodec ff_eac3_encoder;
+extern AVCodec ff_eac3_decoder;
+extern AVCodec ff_evrc_decoder;
+extern AVCodec ff_ffwavesynth_decoder;
+extern AVCodec ff_flac_encoder;
+extern AVCodec ff_flac_decoder;
+extern AVCodec ff_g723_1_encoder;
+extern AVCodec ff_g723_1_decoder;
+extern AVCodec ff_g729_decoder;
+extern AVCodec ff_gsm_decoder;
+extern AVCodec ff_gsm_ms_decoder;
+extern AVCodec ff_hcom_decoder;
+extern AVCodec ff_iac_decoder;
+extern AVCodec ff_ilbc_decoder;
+extern AVCodec ff_imc_decoder;
+extern AVCodec ff_interplay_acm_decoder;
+extern AVCodec ff_mace3_decoder;
+extern AVCodec ff_mace6_decoder;
+extern AVCodec ff_metasound_decoder;
+extern AVCodec ff_mlp_encoder;
+extern AVCodec ff_mlp_decoder;
+extern AVCodec ff_mp1_decoder;
+extern AVCodec ff_mp1float_decoder;
+extern AVCodec ff_mp2_encoder;
+extern AVCodec ff_mp2_decoder;
+extern AVCodec ff_mp2float_decoder;
+extern AVCodec ff_mp2fixed_encoder;
+extern AVCodec ff_mp3float_decoder;
+extern AVCodec ff_mp3_decoder;
+extern AVCodec ff_mp3adufloat_decoder;
+extern AVCodec ff_mp3adu_decoder;
+extern AVCodec ff_mp3on4float_decoder;
+extern AVCodec ff_mp3on4_decoder;
+extern AVCodec ff_mpc7_decoder;
+extern AVCodec ff_mpc8_decoder;
+extern AVCodec ff_nellymoser_encoder;
+extern AVCodec ff_nellymoser_decoder;
+extern AVCodec ff_on2avc_decoder;
+extern AVCodec ff_opus_encoder;
+extern AVCodec ff_opus_decoder;
+extern AVCodec ff_paf_audio_decoder;
+extern AVCodec ff_qcelp_decoder;
+extern AVCodec ff_qdm2_decoder;
+extern AVCodec ff_qdmc_decoder;
+extern AVCodec ff_ra_144_encoder;
+extern AVCodec ff_ra_144_decoder;
+extern AVCodec ff_ra_288_decoder;
+extern AVCodec ff_ralf_decoder;
+extern AVCodec ff_sbc_encoder;
+extern AVCodec ff_sbc_decoder;
+extern AVCodec ff_shorten_decoder;
+extern AVCodec ff_sipr_decoder;
+extern AVCodec ff_smackaud_decoder;
+extern AVCodec ff_sonic_encoder;
+extern AVCodec ff_sonic_decoder;
+extern AVCodec ff_sonic_ls_encoder;
+extern AVCodec ff_tak_decoder;
+extern AVCodec ff_truehd_encoder;
+extern AVCodec ff_truehd_decoder;
+extern AVCodec ff_truespeech_decoder;
+extern AVCodec ff_tta_encoder;
+extern AVCodec ff_tta_decoder;
+extern AVCodec ff_twinvq_decoder;
+extern AVCodec ff_vmdaudio_decoder;
+extern AVCodec ff_vorbis_encoder;
+extern AVCodec ff_vorbis_decoder;
+extern AVCodec ff_wavpack_encoder;
+extern AVCodec ff_wavpack_decoder;
+extern AVCodec ff_wmalossless_decoder;
+extern AVCodec ff_wmapro_decoder;
+extern AVCodec ff_wmav1_encoder;
+extern AVCodec ff_wmav1_decoder;
+extern AVCodec ff_wmav2_encoder;
+extern AVCodec ff_wmav2_decoder;
+extern AVCodec ff_wmavoice_decoder;
+extern AVCodec ff_ws_snd1_decoder;
+extern AVCodec ff_xma1_decoder;
+extern AVCodec ff_xma2_decoder;
+
+/* PCM codecs */
+extern AVCodec ff_pcm_alaw_encoder;
+extern AVCodec ff_pcm_alaw_decoder;
+extern AVCodec ff_pcm_bluray_decoder;
+extern AVCodec ff_pcm_dvd_encoder;
+extern AVCodec ff_pcm_dvd_decoder;
+extern AVCodec ff_pcm_f16le_decoder;
+extern AVCodec ff_pcm_f24le_decoder;
+extern AVCodec ff_pcm_f32be_encoder;
+extern AVCodec ff_pcm_f32be_decoder;
+extern AVCodec ff_pcm_f32le_encoder;
+extern AVCodec ff_pcm_f32le_decoder;
+extern AVCodec ff_pcm_f64be_encoder;
+extern AVCodec ff_pcm_f64be_decoder;
+extern AVCodec ff_pcm_f64le_encoder;
+extern AVCodec ff_pcm_f64le_decoder;
+extern AVCodec ff_pcm_lxf_decoder;
+extern AVCodec ff_pcm_mulaw_encoder;
+extern AVCodec ff_pcm_mulaw_decoder;
+extern AVCodec ff_pcm_s8_encoder;
+extern AVCodec ff_pcm_s8_decoder;
+extern AVCodec ff_pcm_s8_planar_encoder;
+extern AVCodec ff_pcm_s8_planar_decoder;
+extern AVCodec ff_pcm_s16be_encoder;
+extern AVCodec ff_pcm_s16be_decoder;
+extern AVCodec ff_pcm_s16be_planar_encoder;
+extern AVCodec ff_pcm_s16be_planar_decoder;
+extern AVCodec ff_pcm_s16le_encoder;
+extern AVCodec ff_pcm_s16le_decoder;
+extern AVCodec ff_pcm_s16le_planar_encoder;
+extern AVCodec ff_pcm_s16le_planar_decoder;
+extern AVCodec ff_pcm_s24be_encoder;
+extern AVCodec ff_pcm_s24be_decoder;
+extern AVCodec ff_pcm_s24daud_encoder;
+extern AVCodec ff_pcm_s24daud_decoder;
+extern AVCodec ff_pcm_s24le_encoder;
+extern AVCodec ff_pcm_s24le_decoder;
+extern AVCodec ff_pcm_s24le_planar_encoder;
+extern AVCodec ff_pcm_s24le_planar_decoder;
+extern AVCodec ff_pcm_s32be_encoder;
+extern AVCodec ff_pcm_s32be_decoder;
+extern AVCodec ff_pcm_s32le_encoder;
+extern AVCodec ff_pcm_s32le_decoder;
+extern AVCodec ff_pcm_s32le_planar_encoder;
+extern AVCodec ff_pcm_s32le_planar_decoder;
+extern AVCodec ff_pcm_s64be_encoder;
+extern AVCodec ff_pcm_s64be_decoder;
+extern AVCodec ff_pcm_s64le_encoder;
+extern AVCodec ff_pcm_s64le_decoder;
+extern AVCodec ff_pcm_u8_encoder;
+extern AVCodec ff_pcm_u8_decoder;
+extern AVCodec ff_pcm_u16be_encoder;
+extern AVCodec ff_pcm_u16be_decoder;
+extern AVCodec ff_pcm_u16le_encoder;
+extern AVCodec ff_pcm_u16le_decoder;
+extern AVCodec ff_pcm_u24be_encoder;
+extern AVCodec ff_pcm_u24be_decoder;
+extern AVCodec ff_pcm_u24le_encoder;
+extern AVCodec ff_pcm_u24le_decoder;
+extern AVCodec ff_pcm_u32be_encoder;
+extern AVCodec ff_pcm_u32be_decoder;
+extern AVCodec ff_pcm_u32le_encoder;
+extern AVCodec ff_pcm_u32le_decoder;
+extern AVCodec ff_pcm_vidc_encoder;
+extern AVCodec ff_pcm_vidc_decoder;
+extern AVCodec ff_pcm_zork_decoder;
+
+/* DPCM codecs */
+extern AVCodec ff_gremlin_dpcm_decoder;
+extern AVCodec ff_interplay_dpcm_decoder;
+extern AVCodec ff_roq_dpcm_encoder;
+extern AVCodec ff_roq_dpcm_decoder;
+extern AVCodec ff_sol_dpcm_decoder;
+extern AVCodec ff_xan_dpcm_decoder;
+
+/* ADPCM codecs */
+extern AVCodec ff_adpcm_4xm_decoder;
+extern AVCodec ff_adpcm_adx_encoder;
+extern AVCodec ff_adpcm_adx_decoder;
+extern AVCodec ff_adpcm_afc_decoder;
+extern AVCodec ff_adpcm_agm_decoder;
+extern AVCodec ff_adpcm_aica_decoder;
+extern AVCodec ff_adpcm_ct_decoder;
+extern AVCodec ff_adpcm_dtk_decoder;
+extern AVCodec ff_adpcm_ea_decoder;
+extern AVCodec ff_adpcm_ea_maxis_xa_decoder;
+extern AVCodec ff_adpcm_ea_r1_decoder;
+extern AVCodec ff_adpcm_ea_r2_decoder;
+extern AVCodec ff_adpcm_ea_r3_decoder;
+extern AVCodec ff_adpcm_ea_xas_decoder;
+extern AVCodec ff_adpcm_g722_encoder;
+extern AVCodec ff_adpcm_g722_decoder;
+extern AVCodec ff_adpcm_g726_encoder;
+extern AVCodec ff_adpcm_g726_decoder;
+extern AVCodec ff_adpcm_g726le_encoder;
+extern AVCodec ff_adpcm_g726le_decoder;
+extern AVCodec ff_adpcm_ima_amv_decoder;
+extern AVCodec ff_adpcm_ima_apc_decoder;
+extern AVCodec ff_adpcm_ima_dat4_decoder;
+extern AVCodec ff_adpcm_ima_dk3_decoder;
+extern AVCodec ff_adpcm_ima_dk4_decoder;
+extern AVCodec ff_adpcm_ima_ea_eacs_decoder;
+extern AVCodec ff_adpcm_ima_ea_sead_decoder;
+extern AVCodec ff_adpcm_ima_iss_decoder;
+extern AVCodec ff_adpcm_ima_oki_decoder;
+extern AVCodec ff_adpcm_ima_qt_encoder;
+extern AVCodec ff_adpcm_ima_qt_decoder;
+extern AVCodec ff_adpcm_ima_rad_decoder;
+extern AVCodec ff_adpcm_ima_smjpeg_decoder;
+extern AVCodec ff_adpcm_ima_wav_encoder;
+extern AVCodec ff_adpcm_ima_wav_decoder;
+extern AVCodec ff_adpcm_ima_ws_decoder;
+extern AVCodec ff_adpcm_ms_encoder;
+extern AVCodec ff_adpcm_ms_decoder;
+extern AVCodec ff_adpcm_mtaf_decoder;
+extern AVCodec ff_adpcm_psx_decoder;
+extern AVCodec ff_adpcm_sbpro_2_decoder;
+extern AVCodec ff_adpcm_sbpro_3_decoder;
+extern AVCodec ff_adpcm_sbpro_4_decoder;
+extern AVCodec ff_adpcm_swf_encoder;
+extern AVCodec ff_adpcm_swf_decoder;
+extern AVCodec ff_adpcm_thp_decoder;
+extern AVCodec ff_adpcm_thp_le_decoder;
+extern AVCodec ff_adpcm_vima_decoder;
+extern AVCodec ff_adpcm_xa_decoder;
+extern AVCodec ff_adpcm_yamaha_encoder;
+extern AVCodec ff_adpcm_yamaha_decoder;
+
+/* subtitles */
+extern AVCodec ff_ssa_encoder;
+extern AVCodec ff_ssa_decoder;
+extern AVCodec ff_ass_encoder;
+extern AVCodec ff_ass_decoder;
+extern AVCodec ff_ccaption_decoder;
+extern AVCodec ff_dvbsub_encoder;
+extern AVCodec ff_dvbsub_decoder;
+extern AVCodec ff_dvdsub_encoder;
+extern AVCodec ff_dvdsub_decoder;
+extern AVCodec ff_jacosub_decoder;
+extern AVCodec ff_microdvd_decoder;
+extern AVCodec ff_movtext_encoder;
+extern AVCodec ff_movtext_decoder;
+extern AVCodec ff_mpl2_decoder;
+extern AVCodec ff_pgssub_decoder;
+extern AVCodec ff_pjs_decoder;
+extern AVCodec ff_realtext_decoder;
+extern AVCodec ff_sami_decoder;
+extern AVCodec ff_srt_encoder;
+extern AVCodec ff_srt_decoder;
+extern AVCodec ff_stl_decoder;
+extern AVCodec ff_subrip_encoder;
+extern AVCodec ff_subrip_decoder;
+extern AVCodec ff_subviewer_decoder;
+extern AVCodec ff_subviewer1_decoder;
+extern AVCodec ff_text_encoder;
+extern AVCodec ff_text_decoder;
+extern AVCodec ff_vplayer_decoder;
+extern AVCodec ff_webvtt_encoder;
+extern AVCodec ff_webvtt_decoder;
+extern AVCodec ff_xsub_encoder;
+extern AVCodec ff_xsub_decoder;
+
+/* external libraries */
+extern AVCodec ff_aac_at_encoder;
+extern AVCodec ff_aac_at_decoder;
+extern AVCodec ff_ac3_at_decoder;
+extern AVCodec ff_adpcm_ima_qt_at_decoder;
+extern AVCodec ff_alac_at_encoder;
+extern AVCodec ff_alac_at_decoder;
+extern AVCodec ff_amr_nb_at_decoder;
+extern AVCodec ff_eac3_at_decoder;
+extern AVCodec ff_gsm_ms_at_decoder;
+extern AVCodec ff_ilbc_at_encoder;
+extern AVCodec ff_ilbc_at_decoder;
+extern AVCodec ff_mp1_at_decoder;
+extern AVCodec ff_mp2_at_decoder;
+extern AVCodec ff_mp3_at_decoder;
+extern AVCodec ff_pcm_alaw_at_encoder;
+extern AVCodec ff_pcm_alaw_at_decoder;
+extern AVCodec ff_pcm_mulaw_at_encoder;
+extern AVCodec ff_pcm_mulaw_at_decoder;
+extern AVCodec ff_qdmc_at_decoder;
+extern AVCodec ff_qdm2_at_decoder;
+extern AVCodec ff_libaom_av1_decoder;
+extern AVCodec ff_libaom_av1_encoder;
+extern AVCodec ff_libaribb24_decoder;
+extern AVCodec ff_libcelt_decoder;
+extern AVCodec ff_libcodec2_encoder;
+extern AVCodec ff_libcodec2_decoder;
+extern AVCodec ff_libdav1d_decoder;
+extern AVCodec ff_libdavs2_decoder;
+extern AVCodec ff_libfdk_aac_encoder;
+extern AVCodec ff_libfdk_aac_decoder;
+extern AVCodec ff_libgsm_encoder;
+extern AVCodec ff_libgsm_decoder;
+extern AVCodec ff_libgsm_ms_encoder;
+extern AVCodec ff_libgsm_ms_decoder;
+extern AVCodec ff_libilbc_encoder;
+extern AVCodec ff_libilbc_decoder;
+extern AVCodec ff_libmp3lame_encoder;
+extern AVCodec ff_libopencore_amrnb_encoder;
+extern AVCodec ff_libopencore_amrnb_decoder;
+extern AVCodec ff_libopencore_amrwb_decoder;
+extern AVCodec ff_libopenjpeg_encoder;
+extern AVCodec ff_libopenjpeg_decoder;
+extern AVCodec ff_libopus_encoder;
+extern AVCodec ff_libopus_decoder;
+extern AVCodec ff_librsvg_decoder;
+extern AVCodec ff_libshine_encoder;
+extern AVCodec ff_libspeex_encoder;
+extern AVCodec ff_libspeex_decoder;
+extern AVCodec ff_libtheora_encoder;
+extern AVCodec ff_libtwolame_encoder;
+extern AVCodec ff_libvo_amrwbenc_encoder;
+extern AVCodec ff_libvorbis_encoder;
+extern AVCodec ff_libvorbis_decoder;
+extern AVCodec ff_libvpx_vp8_encoder;
+extern AVCodec ff_libvpx_vp8_decoder;
+extern AVCodec ff_libvpx_vp9_encoder;
+extern AVCodec ff_libvpx_vp9_decoder;
+extern AVCodec ff_libwavpack_encoder;
+/* preferred over libwebp */
+extern AVCodec ff_libwebp_anim_encoder;
+extern AVCodec ff_libwebp_encoder;
+extern AVCodec ff_libx262_encoder;
+extern AVCodec ff_libx264_encoder;
+extern AVCodec ff_libx264rgb_encoder;
+extern AVCodec ff_libx265_encoder;
+extern AVCodec ff_libxavs_encoder;
+extern AVCodec ff_libxavs2_encoder;
+extern AVCodec ff_libxvid_encoder;
+extern AVCodec ff_libzvbi_teletext_decoder;
+
+/* text */
+extern AVCodec ff_bintext_decoder;
+extern AVCodec ff_xbin_decoder;
+extern AVCodec ff_idf_decoder;
+
+/* external libraries, that shouldn't be used by default if one of the
+ * above is available */
+extern AVCodec ff_h263_v4l2m2m_encoder;
+extern AVCodec ff_libopenh264_encoder;
+extern AVCodec ff_libopenh264_decoder;
+extern AVCodec ff_h264_amf_encoder;
+extern AVCodec ff_h264_cuvid_decoder;
+extern AVCodec ff_h264_nvenc_encoder;
+extern AVCodec ff_h264_omx_encoder;
+extern AVCodec ff_h264_qsv_encoder;
+extern AVCodec ff_h264_v4l2m2m_encoder;
+extern AVCodec ff_h264_vaapi_encoder;
+extern AVCodec ff_h264_videotoolbox_encoder;
+#if FF_API_NVENC_OLD_NAME
+extern AVCodec ff_nvenc_encoder;
+extern AVCodec ff_nvenc_h264_encoder;
+extern AVCodec ff_nvenc_hevc_encoder;
+#endif
+extern AVCodec ff_hevc_amf_encoder;
+extern AVCodec ff_hevc_cuvid_decoder;
+extern AVCodec ff_hevc_mediacodec_decoder;
+extern AVCodec ff_hevc_nvenc_encoder;
+extern AVCodec ff_hevc_qsv_encoder;
+extern AVCodec ff_hevc_v4l2m2m_encoder;
+extern AVCodec ff_hevc_vaapi_encoder;
+extern AVCodec ff_hevc_videotoolbox_encoder;
+extern AVCodec ff_libkvazaar_encoder;
+extern AVCodec ff_mjpeg_cuvid_decoder;
+extern AVCodec ff_mjpeg_qsv_encoder;
+extern AVCodec ff_mjpeg_vaapi_encoder;
+extern AVCodec ff_mpeg1_cuvid_decoder;
+extern AVCodec ff_mpeg2_cuvid_decoder;
+extern AVCodec ff_mpeg2_qsv_encoder;
+extern AVCodec ff_mpeg2_vaapi_encoder;
+extern AVCodec ff_mpeg4_cuvid_decoder;
+extern AVCodec ff_mpeg4_mediacodec_decoder;
+extern AVCodec ff_mpeg4_v4l2m2m_encoder;
+extern AVCodec ff_vc1_cuvid_decoder;
+extern AVCodec ff_vp8_cuvid_decoder;
+extern AVCodec ff_vp8_mediacodec_decoder;
+extern AVCodec ff_vp8_qsv_decoder;
+extern AVCodec ff_vp8_v4l2m2m_encoder;
+extern AVCodec ff_vp8_vaapi_encoder;
+extern AVCodec ff_vp9_cuvid_decoder;
+extern AVCodec ff_vp9_mediacodec_decoder;
+extern AVCodec ff_vp9_vaapi_encoder;
+
+// The iterate API is not usable with ossfuzz due to the excessive size of binaries created
+#if CONFIG_OSSFUZZ
+AVCodec * codec_list[] = {
+    NULL,
+    NULL
+};
+#else
+#include "libavcodec/codec_list.c"
+#endif
+
+static AVOnce av_codec_static_init = AV_ONCE_INIT;
+static void av_codec_init_static(void)
+{
+    for (int i = 0; codec_list[i]; i++) {
+        if (codec_list[i]->init_static_data)
+            codec_list[i]->init_static_data((AVCodec*)codec_list[i]);
+    }
+}
+
+const AVCodec *av_codec_iterate(void **opaque)
+{
+    uintptr_t i = (uintptr_t)*opaque;
+    const AVCodec *c = codec_list[i];
+
+    ff_thread_once(&av_codec_static_init, av_codec_init_static);
+
+    if (c)
+        *opaque = (void*)(i + 1);
+
+    return c;
+}
+
+#if FF_API_NEXT
+FF_DISABLE_DEPRECATION_WARNINGS
+static AVOnce av_codec_next_init = AV_ONCE_INIT;
+
+static void av_codec_init_next(void)
+{
+    AVCodec *prev = NULL, *p;
+    void *i = 0;
+    while ((p = (AVCodec*)av_codec_iterate(&i))) {
+        if (prev)
+            prev->next = p;
+        prev = p;
+    }
+}
+
+
+
+av_cold void avcodec_register(AVCodec *codec)
+{
+    ff_thread_once(&av_codec_next_init, av_codec_init_next);
+}
+
+AVCodec *av_codec_next(const AVCodec *c)
+{
+    ff_thread_once(&av_codec_next_init, av_codec_init_next);
+
+    if (c)
+        return c->next;
+    else
+        return (AVCodec*)codec_list[0];
+}
+
+void avcodec_register_all(void)
+{
+    ff_thread_once(&av_codec_next_init, av_codec_init_next);
+}
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
+{
+    switch(id){
+        //This is for future deprecatec codec ids, its empty since
+        //last major bump but will fill up again over time, please don't remove it
+        default                                         : return id;
+    }
+}
+
+static AVCodec *find_codec(enum AVCodecID id, int (*x)(const AVCodec *))
+{
+    const AVCodec *p, *experimental = NULL;
+    void *i = 0;
+
+    id = remap_deprecated_codec_id(id);
+
+    while ((p = av_codec_iterate(&i))) {
+        if (!x(p))
+            continue;
+        if (p->id == id) {
+            if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) {
+                experimental = p;
+            } else
+                return (AVCodec*)p;
+        }
+    }
+
+    return (AVCodec*)experimental;
+}
+
+AVCodec *avcodec_find_encoder(enum AVCodecID id)
+{
+    return find_codec(id, av_codec_is_encoder);
+}
+
+AVCodec *avcodec_find_decoder(enum AVCodecID id)
+{
+    return find_codec(id, av_codec_is_decoder);
+}
+
+static AVCodec *find_codec_by_name(const char *name, int (*x)(const AVCodec *))
+{
+    void *i = 0;
+    const AVCodec *p;
+
+    if (!name)
+        return NULL;
+
+    while ((p = av_codec_iterate(&i))) {
+        if (!x(p))
+            continue;
+        if (strcmp(name, p->name) == 0)
+            return (AVCodec*)p;
+    }
+
+    return NULL;
+}
+
+AVCodec *avcodec_find_encoder_by_name(const char *name)
+{
+    return find_codec_by_name(name, av_codec_is_encoder);
+}
+
+AVCodec *avcodec_find_decoder_by_name(const char *name)
+{
+    return find_codec_by_name(name, av_codec_is_decoder);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/audio_frame_queue.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/audio_frame_queue.c
new file mode 100644
index 000000000..f2ccd6928
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/audio_frame_queue.c
@@ -0,0 +1,113 @@
+/*
+ * Audio Frame Queue
+ * Copyright (c) 2012 Justin Ruggles
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/common.h"
+#include "audio_frame_queue.h"
+#include "internal.h"
+#include "libavutil/avassert.h"
+
+av_cold void ff_af_queue_init(AVCodecContext *avctx, AudioFrameQueue *afq)
+{
+    afq->avctx = avctx;
+    afq->remaining_delay   = avctx->initial_padding;
+    afq->remaining_samples = avctx->initial_padding;
+    afq->frame_count       = 0;
+}
+
+void ff_af_queue_close(AudioFrameQueue *afq)
+{
+    if(afq->frame_count)
+        av_log(afq->avctx, AV_LOG_WARNING, "%d frames left in the queue on closing\n", afq->frame_count);
+    av_freep(&afq->frames);
+    memset(afq, 0, sizeof(*afq));
+}
+
+int ff_af_queue_add(AudioFrameQueue *afq, const AVFrame *f)
+{
+    AudioFrame *new = av_fast_realloc(afq->frames, &afq->frame_alloc, sizeof(*afq->frames)*(afq->frame_count+1));
+    if(!new)
+        return AVERROR(ENOMEM);
+    afq->frames = new;
+    new += afq->frame_count;
+
+    /* get frame parameters */
+    new->duration = f->nb_samples;
+    new->duration += afq->remaining_delay;
+    if (f->pts != AV_NOPTS_VALUE) {
+        new->pts = av_rescale_q(f->pts,
+                                      afq->avctx->time_base,
+                                      (AVRational){ 1, afq->avctx->sample_rate });
+        new->pts -= afq->remaining_delay;
+        if(afq->frame_count && new[-1].pts >= new->pts)
+            av_log(afq->avctx, AV_LOG_WARNING, "Queue input is backward in time\n");
+    } else {
+        new->pts = AV_NOPTS_VALUE;
+    }
+    afq->remaining_delay = 0;
+
+    /* add frame sample count */
+    afq->remaining_samples += f->nb_samples;
+
+    afq->frame_count++;
+
+    return 0;
+}
+
+void ff_af_queue_remove(AudioFrameQueue *afq, int nb_samples, int64_t *pts,
+                        int64_t *duration)
+{
+    int64_t out_pts = AV_NOPTS_VALUE;
+    int removed_samples = 0;
+    int i;
+
+    if (afq->frame_count || afq->frame_alloc) {
+        if (afq->frames->pts != AV_NOPTS_VALUE)
+            out_pts = afq->frames->pts;
+    }
+    if(!afq->frame_count)
+        av_log(afq->avctx, AV_LOG_WARNING, "Trying to remove %d samples, but the queue is empty\n", nb_samples);
+    if (pts)
+        *pts = ff_samples_to_time_base(afq->avctx, out_pts);
+
+    for(i=0; nb_samples && i<afq->frame_count; i++){
+        int n= FFMIN(afq->frames[i].duration, nb_samples);
+        afq->frames[i].duration -= n;
+        nb_samples              -= n;
+        removed_samples         += n;
+        if(afq->frames[i].pts != AV_NOPTS_VALUE)
+            afq->frames[i].pts      += n;
+    }
+    afq->remaining_samples -= removed_samples;
+    i -= i && afq->frames[i-1].duration;
+    memmove(afq->frames, afq->frames + i, sizeof(*afq->frames) * (afq->frame_count - i));
+    afq->frame_count -= i;
+
+    if(nb_samples){
+        av_assert0(!afq->frame_count);
+        av_assert0(afq->remaining_samples == afq->remaining_delay);
+        if(afq->frames && afq->frames[0].pts != AV_NOPTS_VALUE)
+            afq->frames[0].pts += nb_samples;
+        av_log(afq->avctx, AV_LOG_DEBUG, "Trying to remove %d more samples than there are in the queue\n", nb_samples);
+    }
+    if (duration)
+        *duration = ff_samples_to_time_base(afq->avctx, removed_samples);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/audio_frame_queue.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/audio_frame_queue.h
new file mode 100644
index 000000000..d8076eae5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/audio_frame_queue.h
@@ -0,0 +1,83 @@
+/*
+ * Audio Frame Queue
+ * Copyright (c) 2012 Justin Ruggles
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AUDIO_FRAME_QUEUE_H
+#define AVCODEC_AUDIO_FRAME_QUEUE_H
+
+#include "avcodec.h"
+
+typedef struct AudioFrame {
+    int64_t pts;
+    int duration;
+} AudioFrame;
+
+typedef struct AudioFrameQueue {
+    AVCodecContext *avctx;
+    int remaining_delay;
+    int remaining_samples;
+    AudioFrame *frames;
+    unsigned frame_count;
+    unsigned frame_alloc;
+} AudioFrameQueue;
+
+/**
+ * Initialize AudioFrameQueue.
+ *
+ * @param avctx context to use for time_base and av_log
+ * @param afq   queue context
+ */
+void ff_af_queue_init(AVCodecContext *avctx, AudioFrameQueue *afq);
+
+/**
+ * Close AudioFrameQueue.
+ *
+ * Frees memory if needed.
+ *
+ * @param afq queue context
+ */
+void ff_af_queue_close(AudioFrameQueue *afq);
+
+/**
+ * Add a frame to the queue.
+ *
+ * @param afq queue context
+ * @param f   frame to add to the queue
+ */
+int ff_af_queue_add(AudioFrameQueue *afq, const AVFrame *f);
+
+/**
+ * Remove frame(s) from the queue.
+ *
+ * Retrieves the pts of the next available frame, or a generated pts based on
+ * the last frame duration if there are no frames left in the queue. The number
+ * of requested samples should be the full number of samples represented by the
+ * packet that will be output by the encoder. If fewer samples are available
+ * in the queue, a smaller value will be used for the output duration.
+ *
+ * @param afq           queue context
+ * @param nb_samples    number of samples to remove from the queue
+ * @param[out] pts      output packet pts
+ * @param[out] duration output packet duration
+ */
+void ff_af_queue_remove(AudioFrameQueue *afq, int nb_samples, int64_t *pts,
+                        int64_t *duration);
+
+#endif /* AVCODEC_AUDIO_FRAME_QUEUE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avcodec.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avcodec.h
new file mode 100644
index 000000000..d234271c5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avcodec.h
@@ -0,0 +1,6228 @@
+/*
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AVCODEC_H
+#define AVCODEC_AVCODEC_H
+
+/**
+ * @file
+ * @ingroup libavc
+ * Libavcodec external API header
+ */
+
+#include <errno.h>
+#include "libavutil/samplefmt.h"
+#include "libavutil/attributes.h"
+#include "libavutil/avutil.h"
+#include "libavutil/buffer.h"
+#include "libavutil/cpu.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/dict.h"
+#include "libavutil/frame.h"
+#include "libavutil/hwcontext.h"
+#include "libavutil/log.h"
+#include "libavutil/pixfmt.h"
+#include "libavutil/rational.h"
+
+#include "version.h"
+
+/**
+ * @defgroup libavc libavcodec
+ * Encoding/Decoding Library
+ *
+ * @{
+ *
+ * @defgroup lavc_decoding Decoding
+ * @{
+ * @}
+ *
+ * @defgroup lavc_encoding Encoding
+ * @{
+ * @}
+ *
+ * @defgroup lavc_codec Codecs
+ * @{
+ * @defgroup lavc_codec_native Native Codecs
+ * @{
+ * @}
+ * @defgroup lavc_codec_wrappers External library wrappers
+ * @{
+ * @}
+ * @defgroup lavc_codec_hwaccel Hardware Accelerators bridge
+ * @{
+ * @}
+ * @}
+ * @defgroup lavc_internal Internal
+ * @{
+ * @}
+ * @}
+ */
+
+/**
+ * @ingroup libavc
+ * @defgroup lavc_encdec send/receive encoding and decoding API overview
+ * @{
+ *
+ * The avcodec_send_packet()/avcodec_receive_frame()/avcodec_send_frame()/
+ * avcodec_receive_packet() functions provide an encode/decode API, which
+ * decouples input and output.
+ *
+ * The API is very similar for encoding/decoding and audio/video, and works as
+ * follows:
+ * - Set up and open the AVCodecContext as usual.
+ * - Send valid input:
+ *   - For decoding, call avcodec_send_packet() to give the decoder raw
+ *     compressed data in an AVPacket.
+ *   - For encoding, call avcodec_send_frame() to give the encoder an AVFrame
+ *     containing uncompressed audio or video.
+ *   In both cases, it is recommended that AVPackets and AVFrames are
+ *   refcounted, or libavcodec might have to copy the input data. (libavformat
+ *   always returns refcounted AVPackets, and av_frame_get_buffer() allocates
+ *   refcounted AVFrames.)
+ * - Receive output in a loop. Periodically call one of the avcodec_receive_*()
+ *   functions and process their output:
+ *   - For decoding, call avcodec_receive_frame(). On success, it will return
+ *     an AVFrame containing uncompressed audio or video data.
+ *   - For encoding, call avcodec_receive_packet(). On success, it will return
+ *     an AVPacket with a compressed frame.
+ *   Repeat this call until it returns AVERROR(EAGAIN) or an error. The
+ *   AVERROR(EAGAIN) return value means that new input data is required to
+ *   return new output. In this case, continue with sending input. For each
+ *   input frame/packet, the codec will typically return 1 output frame/packet,
+ *   but it can also be 0 or more than 1.
+ *
+ * At the beginning of decoding or encoding, the codec might accept multiple
+ * input frames/packets without returning a frame, until its internal buffers
+ * are filled. This situation is handled transparently if you follow the steps
+ * outlined above.
+ *
+ * In theory, sending input can result in EAGAIN - this should happen only if
+ * not all output was received. You can use this to structure alternative decode
+ * or encode loops other than the one suggested above. For example, you could
+ * try sending new input on each iteration, and try to receive output if that
+ * returns EAGAIN.
+ *
+ * End of stream situations. These require "flushing" (aka draining) the codec,
+ * as the codec might buffer multiple frames or packets internally for
+ * performance or out of necessity (consider B-frames).
+ * This is handled as follows:
+ * - Instead of valid input, send NULL to the avcodec_send_packet() (decoding)
+ *   or avcodec_send_frame() (encoding) functions. This will enter draining
+ *   mode.
+ * - Call avcodec_receive_frame() (decoding) or avcodec_receive_packet()
+ *   (encoding) in a loop until AVERROR_EOF is returned. The functions will
+ *   not return AVERROR(EAGAIN), unless you forgot to enter draining mode.
+ * - Before decoding can be resumed again, the codec has to be reset with
+ *   avcodec_flush_buffers().
+ *
+ * Using the API as outlined above is highly recommended. But it is also
+ * possible to call functions outside of this rigid schema. For example, you can
+ * call avcodec_send_packet() repeatedly without calling
+ * avcodec_receive_frame(). In this case, avcodec_send_packet() will succeed
+ * until the codec's internal buffer has been filled up (which is typically of
+ * size 1 per output frame, after initial input), and then reject input with
+ * AVERROR(EAGAIN). Once it starts rejecting input, you have no choice but to
+ * read at least some output.
+ *
+ * Not all codecs will follow a rigid and predictable dataflow; the only
+ * guarantee is that an AVERROR(EAGAIN) return value on a send/receive call on
+ * one end implies that a receive/send call on the other end will succeed, or
+ * at least will not fail with AVERROR(EAGAIN). In general, no codec will
+ * permit unlimited buffering of input or output.
+ *
+ * This API replaces the following legacy functions:
+ * - avcodec_decode_video2() and avcodec_decode_audio4():
+ *   Use avcodec_send_packet() to feed input to the decoder, then use
+ *   avcodec_receive_frame() to receive decoded frames after each packet.
+ *   Unlike with the old video decoding API, multiple frames might result from
+ *   a packet. For audio, splitting the input packet into frames by partially
+ *   decoding packets becomes transparent to the API user. You never need to
+ *   feed an AVPacket to the API twice (unless it is rejected with AVERROR(EAGAIN) - then
+ *   no data was read from the packet).
+ *   Additionally, sending a flush/draining packet is required only once.
+ * - avcodec_encode_video2()/avcodec_encode_audio2():
+ *   Use avcodec_send_frame() to feed input to the encoder, then use
+ *   avcodec_receive_packet() to receive encoded packets.
+ *   Providing user-allocated buffers for avcodec_receive_packet() is not
+ *   possible.
+ * - The new API does not handle subtitles yet.
+ *
+ * Mixing new and old function calls on the same AVCodecContext is not allowed,
+ * and will result in undefined behavior.
+ *
+ * Some codecs might require using the new API; using the old API will return
+ * an error when calling it. All codecs support the new API.
+ *
+ * A codec is not allowed to return AVERROR(EAGAIN) for both sending and receiving. This
+ * would be an invalid state, which could put the codec user into an endless
+ * loop. The API has no concept of time either: it cannot happen that trying to
+ * do avcodec_send_packet() results in AVERROR(EAGAIN), but a repeated call 1 second
+ * later accepts the packet (with no other receive/flush API calls involved).
+ * The API is a strict state machine, and the passage of time is not supposed
+ * to influence it. Some timing-dependent behavior might still be deemed
+ * acceptable in certain cases. But it must never result in both send/receive
+ * returning EAGAIN at the same time at any point. It must also absolutely be
+ * avoided that the current state is "unstable" and can "flip-flop" between
+ * the send/receive APIs allowing progress. For example, it's not allowed that
+ * the codec randomly decides that it actually wants to consume a packet now
+ * instead of returning a frame, after it just returned AVERROR(EAGAIN) on an
+ * avcodec_send_packet() call.
+ * @}
+ */
+
+/**
+ * @defgroup lavc_core Core functions/structures.
+ * @ingroup libavc
+ *
+ * Basic definitions, functions for querying libavcodec capabilities,
+ * allocating core structures, etc.
+ * @{
+ */
+
+
+/**
+ * Identify the syntax and semantics of the bitstream.
+ * The principle is roughly:
+ * Two decoders with the same ID can decode the same streams.
+ * Two encoders with the same ID can encode compatible streams.
+ * There may be slight deviations from the principle due to implementation
+ * details.
+ *
+ * If you add a codec ID to this list, add it so that
+ * 1. no value of an existing codec ID changes (that would break ABI),
+ * 2. it is as close as possible to similar codecs
+ *
+ * After adding new codec IDs, do not forget to add an entry to the codec
+ * descriptor list and bump libavcodec minor version.
+ */
+enum AVCodecID {
+    AV_CODEC_ID_NONE,
+
+    /* video codecs */
+    AV_CODEC_ID_MPEG1VIDEO,
+    AV_CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
+    AV_CODEC_ID_H261,
+    AV_CODEC_ID_H263,
+    AV_CODEC_ID_RV10,
+    AV_CODEC_ID_RV20,
+    AV_CODEC_ID_MJPEG,
+    AV_CODEC_ID_MJPEGB,
+    AV_CODEC_ID_LJPEG,
+    AV_CODEC_ID_SP5X,
+    AV_CODEC_ID_JPEGLS,
+    AV_CODEC_ID_MPEG4,
+    AV_CODEC_ID_RAWVIDEO,
+    AV_CODEC_ID_MSMPEG4V1,
+    AV_CODEC_ID_MSMPEG4V2,
+    AV_CODEC_ID_MSMPEG4V3,
+    AV_CODEC_ID_WMV1,
+    AV_CODEC_ID_WMV2,
+    AV_CODEC_ID_H263P,
+    AV_CODEC_ID_H263I,
+    AV_CODEC_ID_FLV1,
+    AV_CODEC_ID_SVQ1,
+    AV_CODEC_ID_SVQ3,
+    AV_CODEC_ID_DVVIDEO,
+    AV_CODEC_ID_HUFFYUV,
+    AV_CODEC_ID_CYUV,
+    AV_CODEC_ID_H264,
+    AV_CODEC_ID_INDEO3,
+    AV_CODEC_ID_VP3,
+    AV_CODEC_ID_THEORA,
+    AV_CODEC_ID_ASV1,
+    AV_CODEC_ID_ASV2,
+    AV_CODEC_ID_FFV1,
+    AV_CODEC_ID_4XM,
+    AV_CODEC_ID_VCR1,
+    AV_CODEC_ID_CLJR,
+    AV_CODEC_ID_MDEC,
+    AV_CODEC_ID_ROQ,
+    AV_CODEC_ID_INTERPLAY_VIDEO,
+    AV_CODEC_ID_XAN_WC3,
+    AV_CODEC_ID_XAN_WC4,
+    AV_CODEC_ID_RPZA,
+    AV_CODEC_ID_CINEPAK,
+    AV_CODEC_ID_WS_VQA,
+    AV_CODEC_ID_MSRLE,
+    AV_CODEC_ID_MSVIDEO1,
+    AV_CODEC_ID_IDCIN,
+    AV_CODEC_ID_8BPS,
+    AV_CODEC_ID_SMC,
+    AV_CODEC_ID_FLIC,
+    AV_CODEC_ID_TRUEMOTION1,
+    AV_CODEC_ID_VMDVIDEO,
+    AV_CODEC_ID_MSZH,
+    AV_CODEC_ID_ZLIB,
+    AV_CODEC_ID_QTRLE,
+    AV_CODEC_ID_TSCC,
+    AV_CODEC_ID_ULTI,
+    AV_CODEC_ID_QDRAW,
+    AV_CODEC_ID_VIXL,
+    AV_CODEC_ID_QPEG,
+    AV_CODEC_ID_PNG,
+    AV_CODEC_ID_PPM,
+    AV_CODEC_ID_PBM,
+    AV_CODEC_ID_PGM,
+    AV_CODEC_ID_PGMYUV,
+    AV_CODEC_ID_PAM,
+    AV_CODEC_ID_FFVHUFF,
+    AV_CODEC_ID_RV30,
+    AV_CODEC_ID_RV40,
+    AV_CODEC_ID_VC1,
+    AV_CODEC_ID_WMV3,
+    AV_CODEC_ID_LOCO,
+    AV_CODEC_ID_WNV1,
+    AV_CODEC_ID_AASC,
+    AV_CODEC_ID_INDEO2,
+    AV_CODEC_ID_FRAPS,
+    AV_CODEC_ID_TRUEMOTION2,
+    AV_CODEC_ID_BMP,
+    AV_CODEC_ID_CSCD,
+    AV_CODEC_ID_MMVIDEO,
+    AV_CODEC_ID_ZMBV,
+    AV_CODEC_ID_AVS,
+    AV_CODEC_ID_SMACKVIDEO,
+    AV_CODEC_ID_NUV,
+    AV_CODEC_ID_KMVC,
+    AV_CODEC_ID_FLASHSV,
+    AV_CODEC_ID_CAVS,
+    AV_CODEC_ID_JPEG2000,
+    AV_CODEC_ID_VMNC,
+    AV_CODEC_ID_VP5,
+    AV_CODEC_ID_VP6,
+    AV_CODEC_ID_VP6F,
+    AV_CODEC_ID_TARGA,
+    AV_CODEC_ID_DSICINVIDEO,
+    AV_CODEC_ID_TIERTEXSEQVIDEO,
+    AV_CODEC_ID_TIFF,
+    AV_CODEC_ID_GIF,
+    AV_CODEC_ID_DXA,
+    AV_CODEC_ID_DNXHD,
+    AV_CODEC_ID_THP,
+    AV_CODEC_ID_SGI,
+    AV_CODEC_ID_C93,
+    AV_CODEC_ID_BETHSOFTVID,
+    AV_CODEC_ID_PTX,
+    AV_CODEC_ID_TXD,
+    AV_CODEC_ID_VP6A,
+    AV_CODEC_ID_AMV,
+    AV_CODEC_ID_VB,
+    AV_CODEC_ID_PCX,
+    AV_CODEC_ID_SUNRAST,
+    AV_CODEC_ID_INDEO4,
+    AV_CODEC_ID_INDEO5,
+    AV_CODEC_ID_MIMIC,
+    AV_CODEC_ID_RL2,
+    AV_CODEC_ID_ESCAPE124,
+    AV_CODEC_ID_DIRAC,
+    AV_CODEC_ID_BFI,
+    AV_CODEC_ID_CMV,
+    AV_CODEC_ID_MOTIONPIXELS,
+    AV_CODEC_ID_TGV,
+    AV_CODEC_ID_TGQ,
+    AV_CODEC_ID_TQI,
+    AV_CODEC_ID_AURA,
+    AV_CODEC_ID_AURA2,
+    AV_CODEC_ID_V210X,
+    AV_CODEC_ID_TMV,
+    AV_CODEC_ID_V210,
+    AV_CODEC_ID_DPX,
+    AV_CODEC_ID_MAD,
+    AV_CODEC_ID_FRWU,
+    AV_CODEC_ID_FLASHSV2,
+    AV_CODEC_ID_CDGRAPHICS,
+    AV_CODEC_ID_R210,
+    AV_CODEC_ID_ANM,
+    AV_CODEC_ID_BINKVIDEO,
+    AV_CODEC_ID_IFF_ILBM,
+#define AV_CODEC_ID_IFF_BYTERUN1 AV_CODEC_ID_IFF_ILBM
+    AV_CODEC_ID_KGV1,
+    AV_CODEC_ID_YOP,
+    AV_CODEC_ID_VP8,
+    AV_CODEC_ID_PICTOR,
+    AV_CODEC_ID_ANSI,
+    AV_CODEC_ID_A64_MULTI,
+    AV_CODEC_ID_A64_MULTI5,
+    AV_CODEC_ID_R10K,
+    AV_CODEC_ID_MXPEG,
+    AV_CODEC_ID_LAGARITH,
+    AV_CODEC_ID_PRORES,
+    AV_CODEC_ID_JV,
+    AV_CODEC_ID_DFA,
+    AV_CODEC_ID_WMV3IMAGE,
+    AV_CODEC_ID_VC1IMAGE,
+    AV_CODEC_ID_UTVIDEO,
+    AV_CODEC_ID_BMV_VIDEO,
+    AV_CODEC_ID_VBLE,
+    AV_CODEC_ID_DXTORY,
+    AV_CODEC_ID_V410,
+    AV_CODEC_ID_XWD,
+    AV_CODEC_ID_CDXL,
+    AV_CODEC_ID_XBM,
+    AV_CODEC_ID_ZEROCODEC,
+    AV_CODEC_ID_MSS1,
+    AV_CODEC_ID_MSA1,
+    AV_CODEC_ID_TSCC2,
+    AV_CODEC_ID_MTS2,
+    AV_CODEC_ID_CLLC,
+    AV_CODEC_ID_MSS2,
+    AV_CODEC_ID_VP9,
+    AV_CODEC_ID_AIC,
+    AV_CODEC_ID_ESCAPE130,
+    AV_CODEC_ID_G2M,
+    AV_CODEC_ID_WEBP,
+    AV_CODEC_ID_HNM4_VIDEO,
+    AV_CODEC_ID_HEVC,
+#define AV_CODEC_ID_H265 AV_CODEC_ID_HEVC
+    AV_CODEC_ID_FIC,
+    AV_CODEC_ID_ALIAS_PIX,
+    AV_CODEC_ID_BRENDER_PIX,
+    AV_CODEC_ID_PAF_VIDEO,
+    AV_CODEC_ID_EXR,
+    AV_CODEC_ID_VP7,
+    AV_CODEC_ID_SANM,
+    AV_CODEC_ID_SGIRLE,
+    AV_CODEC_ID_MVC1,
+    AV_CODEC_ID_MVC2,
+    AV_CODEC_ID_HQX,
+    AV_CODEC_ID_TDSC,
+    AV_CODEC_ID_HQ_HQA,
+    AV_CODEC_ID_HAP,
+    AV_CODEC_ID_DDS,
+    AV_CODEC_ID_DXV,
+    AV_CODEC_ID_SCREENPRESSO,
+    AV_CODEC_ID_RSCC,
+    AV_CODEC_ID_AVS2,
+
+    AV_CODEC_ID_Y41P = 0x8000,
+    AV_CODEC_ID_AVRP,
+    AV_CODEC_ID_012V,
+    AV_CODEC_ID_AVUI,
+    AV_CODEC_ID_AYUV,
+    AV_CODEC_ID_TARGA_Y216,
+    AV_CODEC_ID_V308,
+    AV_CODEC_ID_V408,
+    AV_CODEC_ID_YUV4,
+    AV_CODEC_ID_AVRN,
+    AV_CODEC_ID_CPIA,
+    AV_CODEC_ID_XFACE,
+    AV_CODEC_ID_SNOW,
+    AV_CODEC_ID_SMVJPEG,
+    AV_CODEC_ID_APNG,
+    AV_CODEC_ID_DAALA,
+    AV_CODEC_ID_CFHD,
+    AV_CODEC_ID_TRUEMOTION2RT,
+    AV_CODEC_ID_M101,
+    AV_CODEC_ID_MAGICYUV,
+    AV_CODEC_ID_SHEERVIDEO,
+    AV_CODEC_ID_YLC,
+    AV_CODEC_ID_PSD,
+    AV_CODEC_ID_PIXLET,
+    AV_CODEC_ID_SPEEDHQ,
+    AV_CODEC_ID_FMVC,
+    AV_CODEC_ID_SCPR,
+    AV_CODEC_ID_CLEARVIDEO,
+    AV_CODEC_ID_XPM,
+    AV_CODEC_ID_AV1,
+    AV_CODEC_ID_BITPACKED,
+    AV_CODEC_ID_MSCC,
+    AV_CODEC_ID_SRGC,
+    AV_CODEC_ID_SVG,
+    AV_CODEC_ID_GDV,
+    AV_CODEC_ID_FITS,
+    AV_CODEC_ID_IMM4,
+    AV_CODEC_ID_PROSUMER,
+    AV_CODEC_ID_MWSC,
+    AV_CODEC_ID_WCMV,
+    AV_CODEC_ID_RASC,
+    AV_CODEC_ID_HYMT,
+    AV_CODEC_ID_ARBC,
+    AV_CODEC_ID_AGM,
+    AV_CODEC_ID_LSCR,
+    AV_CODEC_ID_VP4,
+
+    /* various PCM "codecs" */
+    AV_CODEC_ID_FIRST_AUDIO = 0x10000,     ///< A dummy id pointing at the start of audio codecs
+    AV_CODEC_ID_PCM_S16LE = 0x10000,
+    AV_CODEC_ID_PCM_S16BE,
+    AV_CODEC_ID_PCM_U16LE,
+    AV_CODEC_ID_PCM_U16BE,
+    AV_CODEC_ID_PCM_S8,
+    AV_CODEC_ID_PCM_U8,
+    AV_CODEC_ID_PCM_MULAW,
+    AV_CODEC_ID_PCM_ALAW,
+    AV_CODEC_ID_PCM_S32LE,
+    AV_CODEC_ID_PCM_S32BE,
+    AV_CODEC_ID_PCM_U32LE,
+    AV_CODEC_ID_PCM_U32BE,
+    AV_CODEC_ID_PCM_S24LE,
+    AV_CODEC_ID_PCM_S24BE,
+    AV_CODEC_ID_PCM_U24LE,
+    AV_CODEC_ID_PCM_U24BE,
+    AV_CODEC_ID_PCM_S24DAUD,
+    AV_CODEC_ID_PCM_ZORK,
+    AV_CODEC_ID_PCM_S16LE_PLANAR,
+    AV_CODEC_ID_PCM_DVD,
+    AV_CODEC_ID_PCM_F32BE,
+    AV_CODEC_ID_PCM_F32LE,
+    AV_CODEC_ID_PCM_F64BE,
+    AV_CODEC_ID_PCM_F64LE,
+    AV_CODEC_ID_PCM_BLURAY,
+    AV_CODEC_ID_PCM_LXF,
+    AV_CODEC_ID_S302M,
+    AV_CODEC_ID_PCM_S8_PLANAR,
+    AV_CODEC_ID_PCM_S24LE_PLANAR,
+    AV_CODEC_ID_PCM_S32LE_PLANAR,
+    AV_CODEC_ID_PCM_S16BE_PLANAR,
+
+    AV_CODEC_ID_PCM_S64LE = 0x10800,
+    AV_CODEC_ID_PCM_S64BE,
+    AV_CODEC_ID_PCM_F16LE,
+    AV_CODEC_ID_PCM_F24LE,
+    AV_CODEC_ID_PCM_VIDC,
+
+    /* various ADPCM codecs */
+    AV_CODEC_ID_ADPCM_IMA_QT = 0x11000,
+    AV_CODEC_ID_ADPCM_IMA_WAV,
+    AV_CODEC_ID_ADPCM_IMA_DK3,
+    AV_CODEC_ID_ADPCM_IMA_DK4,
+    AV_CODEC_ID_ADPCM_IMA_WS,
+    AV_CODEC_ID_ADPCM_IMA_SMJPEG,
+    AV_CODEC_ID_ADPCM_MS,
+    AV_CODEC_ID_ADPCM_4XM,
+    AV_CODEC_ID_ADPCM_XA,
+    AV_CODEC_ID_ADPCM_ADX,
+    AV_CODEC_ID_ADPCM_EA,
+    AV_CODEC_ID_ADPCM_G726,
+    AV_CODEC_ID_ADPCM_CT,
+    AV_CODEC_ID_ADPCM_SWF,
+    AV_CODEC_ID_ADPCM_YAMAHA,
+    AV_CODEC_ID_ADPCM_SBPRO_4,
+    AV_CODEC_ID_ADPCM_SBPRO_3,
+    AV_CODEC_ID_ADPCM_SBPRO_2,
+    AV_CODEC_ID_ADPCM_THP,
+    AV_CODEC_ID_ADPCM_IMA_AMV,
+    AV_CODEC_ID_ADPCM_EA_R1,
+    AV_CODEC_ID_ADPCM_EA_R3,
+    AV_CODEC_ID_ADPCM_EA_R2,
+    AV_CODEC_ID_ADPCM_IMA_EA_SEAD,
+    AV_CODEC_ID_ADPCM_IMA_EA_EACS,
+    AV_CODEC_ID_ADPCM_EA_XAS,
+    AV_CODEC_ID_ADPCM_EA_MAXIS_XA,
+    AV_CODEC_ID_ADPCM_IMA_ISS,
+    AV_CODEC_ID_ADPCM_G722,
+    AV_CODEC_ID_ADPCM_IMA_APC,
+    AV_CODEC_ID_ADPCM_VIMA,
+
+    AV_CODEC_ID_ADPCM_AFC = 0x11800,
+    AV_CODEC_ID_ADPCM_IMA_OKI,
+    AV_CODEC_ID_ADPCM_DTK,
+    AV_CODEC_ID_ADPCM_IMA_RAD,
+    AV_CODEC_ID_ADPCM_G726LE,
+    AV_CODEC_ID_ADPCM_THP_LE,
+    AV_CODEC_ID_ADPCM_PSX,
+    AV_CODEC_ID_ADPCM_AICA,
+    AV_CODEC_ID_ADPCM_IMA_DAT4,
+    AV_CODEC_ID_ADPCM_MTAF,
+    AV_CODEC_ID_ADPCM_AGM,
+
+    /* AMR */
+    AV_CODEC_ID_AMR_NB = 0x12000,
+    AV_CODEC_ID_AMR_WB,
+
+    /* RealAudio codecs*/
+    AV_CODEC_ID_RA_144 = 0x13000,
+    AV_CODEC_ID_RA_288,
+
+    /* various DPCM codecs */
+    AV_CODEC_ID_ROQ_DPCM = 0x14000,
+    AV_CODEC_ID_INTERPLAY_DPCM,
+    AV_CODEC_ID_XAN_DPCM,
+    AV_CODEC_ID_SOL_DPCM,
+
+    AV_CODEC_ID_SDX2_DPCM = 0x14800,
+    AV_CODEC_ID_GREMLIN_DPCM,
+
+    /* audio codecs */
+    AV_CODEC_ID_MP2 = 0x15000,
+    AV_CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
+    AV_CODEC_ID_AAC,
+    AV_CODEC_ID_AC3,
+    AV_CODEC_ID_DTS,
+    AV_CODEC_ID_VORBIS,
+    AV_CODEC_ID_DVAUDIO,
+    AV_CODEC_ID_WMAV1,
+    AV_CODEC_ID_WMAV2,
+    AV_CODEC_ID_MACE3,
+    AV_CODEC_ID_MACE6,
+    AV_CODEC_ID_VMDAUDIO,
+    AV_CODEC_ID_FLAC,
+    AV_CODEC_ID_MP3ADU,
+    AV_CODEC_ID_MP3ON4,
+    AV_CODEC_ID_SHORTEN,
+    AV_CODEC_ID_ALAC,
+    AV_CODEC_ID_WESTWOOD_SND1,
+    AV_CODEC_ID_GSM, ///< as in Berlin toast format
+    AV_CODEC_ID_QDM2,
+    AV_CODEC_ID_COOK,
+    AV_CODEC_ID_TRUESPEECH,
+    AV_CODEC_ID_TTA,
+    AV_CODEC_ID_SMACKAUDIO,
+    AV_CODEC_ID_QCELP,
+    AV_CODEC_ID_WAVPACK,
+    AV_CODEC_ID_DSICINAUDIO,
+    AV_CODEC_ID_IMC,
+    AV_CODEC_ID_MUSEPACK7,
+    AV_CODEC_ID_MLP,
+    AV_CODEC_ID_GSM_MS, /* as found in WAV */
+    AV_CODEC_ID_ATRAC3,
+    AV_CODEC_ID_APE,
+    AV_CODEC_ID_NELLYMOSER,
+    AV_CODEC_ID_MUSEPACK8,
+    AV_CODEC_ID_SPEEX,
+    AV_CODEC_ID_WMAVOICE,
+    AV_CODEC_ID_WMAPRO,
+    AV_CODEC_ID_WMALOSSLESS,
+    AV_CODEC_ID_ATRAC3P,
+    AV_CODEC_ID_EAC3,
+    AV_CODEC_ID_SIPR,
+    AV_CODEC_ID_MP1,
+    AV_CODEC_ID_TWINVQ,
+    AV_CODEC_ID_TRUEHD,
+    AV_CODEC_ID_MP4ALS,
+    AV_CODEC_ID_ATRAC1,
+    AV_CODEC_ID_BINKAUDIO_RDFT,
+    AV_CODEC_ID_BINKAUDIO_DCT,
+    AV_CODEC_ID_AAC_LATM,
+    AV_CODEC_ID_QDMC,
+    AV_CODEC_ID_CELT,
+    AV_CODEC_ID_G723_1,
+    AV_CODEC_ID_G729,
+    AV_CODEC_ID_8SVX_EXP,
+    AV_CODEC_ID_8SVX_FIB,
+    AV_CODEC_ID_BMV_AUDIO,
+    AV_CODEC_ID_RALF,
+    AV_CODEC_ID_IAC,
+    AV_CODEC_ID_ILBC,
+    AV_CODEC_ID_OPUS,
+    AV_CODEC_ID_COMFORT_NOISE,
+    AV_CODEC_ID_TAK,
+    AV_CODEC_ID_METASOUND,
+    AV_CODEC_ID_PAF_AUDIO,
+    AV_CODEC_ID_ON2AVC,
+    AV_CODEC_ID_DSS_SP,
+    AV_CODEC_ID_CODEC2,
+
+    AV_CODEC_ID_FFWAVESYNTH = 0x15800,
+    AV_CODEC_ID_SONIC,
+    AV_CODEC_ID_SONIC_LS,
+    AV_CODEC_ID_EVRC,
+    AV_CODEC_ID_SMV,
+    AV_CODEC_ID_DSD_LSBF,
+    AV_CODEC_ID_DSD_MSBF,
+    AV_CODEC_ID_DSD_LSBF_PLANAR,
+    AV_CODEC_ID_DSD_MSBF_PLANAR,
+    AV_CODEC_ID_4GV,
+    AV_CODEC_ID_INTERPLAY_ACM,
+    AV_CODEC_ID_XMA1,
+    AV_CODEC_ID_XMA2,
+    AV_CODEC_ID_DST,
+    AV_CODEC_ID_ATRAC3AL,
+    AV_CODEC_ID_ATRAC3PAL,
+    AV_CODEC_ID_DOLBY_E,
+    AV_CODEC_ID_APTX,
+    AV_CODEC_ID_APTX_HD,
+    AV_CODEC_ID_SBC,
+    AV_CODEC_ID_ATRAC9,
+    AV_CODEC_ID_HCOM,
+
+    /* subtitle codecs */
+    AV_CODEC_ID_FIRST_SUBTITLE = 0x17000,          ///< A dummy ID pointing at the start of subtitle codecs.
+    AV_CODEC_ID_DVD_SUBTITLE = 0x17000,
+    AV_CODEC_ID_DVB_SUBTITLE,
+    AV_CODEC_ID_TEXT,  ///< raw UTF-8 text
+    AV_CODEC_ID_XSUB,
+    AV_CODEC_ID_SSA,
+    AV_CODEC_ID_MOV_TEXT,
+    AV_CODEC_ID_HDMV_PGS_SUBTITLE,
+    AV_CODEC_ID_DVB_TELETEXT,
+    AV_CODEC_ID_SRT,
+
+    AV_CODEC_ID_MICRODVD   = 0x17800,
+    AV_CODEC_ID_EIA_608,
+    AV_CODEC_ID_JACOSUB,
+    AV_CODEC_ID_SAMI,
+    AV_CODEC_ID_REALTEXT,
+    AV_CODEC_ID_STL,
+    AV_CODEC_ID_SUBVIEWER1,
+    AV_CODEC_ID_SUBVIEWER,
+    AV_CODEC_ID_SUBRIP,
+    AV_CODEC_ID_WEBVTT,
+    AV_CODEC_ID_MPL2,
+    AV_CODEC_ID_VPLAYER,
+    AV_CODEC_ID_PJS,
+    AV_CODEC_ID_ASS,
+    AV_CODEC_ID_HDMV_TEXT_SUBTITLE,
+    AV_CODEC_ID_TTML,
+    AV_CODEC_ID_ARIB_CAPTION,
+
+    /* other specific kind of codecs (generally used for attachments) */
+    AV_CODEC_ID_FIRST_UNKNOWN = 0x18000,           ///< A dummy ID pointing at the start of various fake codecs.
+    AV_CODEC_ID_TTF = 0x18000,
+
+    AV_CODEC_ID_SCTE_35, ///< Contain timestamp estimated through PCR of program stream.
+    AV_CODEC_ID_BINTEXT    = 0x18800,
+    AV_CODEC_ID_XBIN,
+    AV_CODEC_ID_IDF,
+    AV_CODEC_ID_OTF,
+    AV_CODEC_ID_SMPTE_KLV,
+    AV_CODEC_ID_DVD_NAV,
+    AV_CODEC_ID_TIMED_ID3,
+    AV_CODEC_ID_BIN_DATA,
+
+
+    AV_CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like AV_CODEC_ID_NONE) but lavf should attempt to identify it
+
+    AV_CODEC_ID_MPEG2TS = 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
+                                * stream (only used by libavformat) */
+    AV_CODEC_ID_MPEG4SYSTEMS = 0x20001, /**< _FAKE_ codec to indicate a MPEG-4 Systems
+                                * stream (only used by libavformat) */
+    AV_CODEC_ID_FFMETADATA = 0x21000,   ///< Dummy codec for streams containing only metadata information.
+    AV_CODEC_ID_WRAPPED_AVFRAME = 0x21001, ///< Passthrough codec, AVFrames wrapped in AVPacket
+};
+
+/**
+ * This struct describes the properties of a single codec described by an
+ * AVCodecID.
+ * @see avcodec_descriptor_get()
+ */
+typedef struct AVCodecDescriptor {
+    enum AVCodecID     id;
+    enum AVMediaType type;
+    /**
+     * Name of the codec described by this descriptor. It is non-empty and
+     * unique for each codec descriptor. It should contain alphanumeric
+     * characters and '_' only.
+     */
+    const char      *name;
+    /**
+     * A more descriptive name for this codec. May be NULL.
+     */
+    const char *long_name;
+    /**
+     * Codec properties, a combination of AV_CODEC_PROP_* flags.
+     */
+    int             props;
+    /**
+     * MIME type(s) associated with the codec.
+     * May be NULL; if not, a NULL-terminated array of MIME types.
+     * The first item is always non-NULL and is the preferred MIME type.
+     */
+    const char *const *mime_types;
+    /**
+     * If non-NULL, an array of profiles recognized for this codec.
+     * Terminated with FF_PROFILE_UNKNOWN.
+     */
+    const struct AVProfile *profiles;
+} AVCodecDescriptor;
+
+/**
+ * Codec uses only intra compression.
+ * Video and audio codecs only.
+ */
+#define AV_CODEC_PROP_INTRA_ONLY    (1 << 0)
+/**
+ * Codec supports lossy compression. Audio and video codecs only.
+ * @note a codec may support both lossy and lossless
+ * compression modes
+ */
+#define AV_CODEC_PROP_LOSSY         (1 << 1)
+/**
+ * Codec supports lossless compression. Audio and video codecs only.
+ */
+#define AV_CODEC_PROP_LOSSLESS      (1 << 2)
+/**
+ * Codec supports frame reordering. That is, the coded order (the order in which
+ * the encoded packets are output by the encoders / stored / input to the
+ * decoders) may be different from the presentation order of the corresponding
+ * frames.
+ *
+ * For codecs that do not have this property set, PTS and DTS should always be
+ * equal.
+ */
+#define AV_CODEC_PROP_REORDER       (1 << 3)
+/**
+ * Subtitle codec is bitmap based
+ * Decoded AVSubtitle data can be read from the AVSubtitleRect->pict field.
+ */
+#define AV_CODEC_PROP_BITMAP_SUB    (1 << 16)
+/**
+ * Subtitle codec is text based.
+ * Decoded AVSubtitle data can be read from the AVSubtitleRect->ass field.
+ */
+#define AV_CODEC_PROP_TEXT_SUB      (1 << 17)
+
+/**
+ * @ingroup lavc_decoding
+ * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
+ * This is mainly needed because some optimized bitstream readers read
+ * 32 or 64 bit at once and could read over the end.<br>
+ * Note: If the first 23 bits of the additional bytes are not 0, then damaged
+ * MPEG bitstreams could cause overread and segfault.
+ */
+#define AV_INPUT_BUFFER_PADDING_SIZE 64
+
+/**
+ * @ingroup lavc_encoding
+ * minimum encoding buffer size
+ * Used to avoid some checks during header writing.
+ */
+#define AV_INPUT_BUFFER_MIN_SIZE 16384
+
+/**
+ * @ingroup lavc_decoding
+ */
+enum AVDiscard{
+    /* We leave some space between them for extensions (drop some
+     * keyframes for intra-only or drop just some bidir frames). */
+    AVDISCARD_NONE    =-16, ///< discard nothing
+    AVDISCARD_DEFAULT =  0, ///< discard useless packets like 0 size packets in avi
+    AVDISCARD_NONREF  =  8, ///< discard all non reference
+    AVDISCARD_BIDIR   = 16, ///< discard all bidirectional frames
+    AVDISCARD_NONINTRA= 24, ///< discard all non intra frames
+    AVDISCARD_NONKEY  = 32, ///< discard all frames except keyframes
+    AVDISCARD_ALL     = 48, ///< discard all
+};
+
+enum AVAudioServiceType {
+    AV_AUDIO_SERVICE_TYPE_MAIN              = 0,
+    AV_AUDIO_SERVICE_TYPE_EFFECTS           = 1,
+    AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2,
+    AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED  = 3,
+    AV_AUDIO_SERVICE_TYPE_DIALOGUE          = 4,
+    AV_AUDIO_SERVICE_TYPE_COMMENTARY        = 5,
+    AV_AUDIO_SERVICE_TYPE_EMERGENCY         = 6,
+    AV_AUDIO_SERVICE_TYPE_VOICE_OVER        = 7,
+    AV_AUDIO_SERVICE_TYPE_KARAOKE           = 8,
+    AV_AUDIO_SERVICE_TYPE_NB                   , ///< Not part of ABI
+};
+
+/**
+ * @ingroup lavc_encoding
+ */
+typedef struct RcOverride{
+    int start_frame;
+    int end_frame;
+    int qscale; // If this is 0 then quality_factor will be used instead.
+    float quality_factor;
+} RcOverride;
+
+/* encoding support
+   These flags can be passed in AVCodecContext.flags before initialization.
+   Note: Not everything is supported yet.
+*/
+
+/**
+ * Allow decoders to produce frames with data planes that are not aligned
+ * to CPU requirements (e.g. due to cropping).
+ */
+#define AV_CODEC_FLAG_UNALIGNED       (1 <<  0)
+/**
+ * Use fixed qscale.
+ */
+#define AV_CODEC_FLAG_QSCALE          (1 <<  1)
+/**
+ * 4 MV per MB allowed / advanced prediction for H.263.
+ */
+#define AV_CODEC_FLAG_4MV             (1 <<  2)
+/**
+ * Output even those frames that might be corrupted.
+ */
+#define AV_CODEC_FLAG_OUTPUT_CORRUPT  (1 <<  3)
+/**
+ * Use qpel MC.
+ */
+#define AV_CODEC_FLAG_QPEL            (1 <<  4)
+/**
+ * Don't output frames whose parameters differ from first
+ * decoded frame in stream.
+ */
+#define AV_CODEC_FLAG_DROPCHANGED     (1 <<  5)
+/**
+ * Use internal 2pass ratecontrol in first pass mode.
+ */
+#define AV_CODEC_FLAG_PASS1           (1 <<  9)
+/**
+ * Use internal 2pass ratecontrol in second pass mode.
+ */
+#define AV_CODEC_FLAG_PASS2           (1 << 10)
+/**
+ * loop filter.
+ */
+#define AV_CODEC_FLAG_LOOP_FILTER     (1 << 11)
+/**
+ * Only decode/encode grayscale.
+ */
+#define AV_CODEC_FLAG_GRAY            (1 << 13)
+/**
+ * error[?] variables will be set during encoding.
+ */
+#define AV_CODEC_FLAG_PSNR            (1 << 15)
+/**
+ * Input bitstream might be truncated at a random location
+ * instead of only at frame boundaries.
+ */
+#define AV_CODEC_FLAG_TRUNCATED       (1 << 16)
+/**
+ * Use interlaced DCT.
+ */
+#define AV_CODEC_FLAG_INTERLACED_DCT  (1 << 18)
+/**
+ * Force low delay.
+ */
+#define AV_CODEC_FLAG_LOW_DELAY       (1 << 19)
+/**
+ * Place global headers in extradata instead of every keyframe.
+ */
+#define AV_CODEC_FLAG_GLOBAL_HEADER   (1 << 22)
+/**
+ * Use only bitexact stuff (except (I)DCT).
+ */
+#define AV_CODEC_FLAG_BITEXACT        (1 << 23)
+/* Fx : Flag for H.263+ extra options */
+/**
+ * H.263 advanced intra coding / MPEG-4 AC prediction
+ */
+#define AV_CODEC_FLAG_AC_PRED         (1 << 24)
+/**
+ * interlaced motion estimation
+ */
+#define AV_CODEC_FLAG_INTERLACED_ME   (1 << 29)
+#define AV_CODEC_FLAG_CLOSED_GOP      (1U << 31)
+
+/**
+ * Allow non spec compliant speedup tricks.
+ */
+#define AV_CODEC_FLAG2_FAST           (1 <<  0)
+/**
+ * Skip bitstream encoding.
+ */
+#define AV_CODEC_FLAG2_NO_OUTPUT      (1 <<  2)
+/**
+ * Place global headers at every keyframe instead of in extradata.
+ */
+#define AV_CODEC_FLAG2_LOCAL_HEADER   (1 <<  3)
+
+/**
+ * timecode is in drop frame format. DEPRECATED!!!!
+ */
+#define AV_CODEC_FLAG2_DROP_FRAME_TIMECODE (1 << 13)
+
+/**
+ * Input bitstream might be truncated at a packet boundaries
+ * instead of only at frame boundaries.
+ */
+#define AV_CODEC_FLAG2_CHUNKS         (1 << 15)
+/**
+ * Discard cropping information from SPS.
+ */
+#define AV_CODEC_FLAG2_IGNORE_CROP    (1 << 16)
+
+/**
+ * Show all frames before the first keyframe
+ */
+#define AV_CODEC_FLAG2_SHOW_ALL       (1 << 22)
+/**
+ * Export motion vectors through frame side data
+ */
+#define AV_CODEC_FLAG2_EXPORT_MVS     (1 << 28)
+/**
+ * Do not skip samples and export skip information as frame side data
+ */
+#define AV_CODEC_FLAG2_SKIP_MANUAL    (1 << 29)
+/**
+ * Do not reset ASS ReadOrder field on flush (subtitles decoding)
+ */
+#define AV_CODEC_FLAG2_RO_FLUSH_NOOP  (1 << 30)
+
+/* Unsupported options :
+ *              Syntax Arithmetic coding (SAC)
+ *              Reference Picture Selection
+ *              Independent Segment Decoding */
+/* /Fx */
+/* codec capabilities */
+
+/**
+ * Decoder can use draw_horiz_band callback.
+ */
+#define AV_CODEC_CAP_DRAW_HORIZ_BAND     (1 <<  0)
+/**
+ * Codec uses get_buffer() for allocating buffers and supports custom allocators.
+ * If not set, it might not use get_buffer() at all or use operations that
+ * assume the buffer was allocated by avcodec_default_get_buffer.
+ */
+#define AV_CODEC_CAP_DR1                 (1 <<  1)
+#define AV_CODEC_CAP_TRUNCATED           (1 <<  3)
+/**
+ * Encoder or decoder requires flushing with NULL input at the end in order to
+ * give the complete and correct output.
+ *
+ * NOTE: If this flag is not set, the codec is guaranteed to never be fed with
+ *       with NULL data. The user can still send NULL data to the public encode
+ *       or decode function, but libavcodec will not pass it along to the codec
+ *       unless this flag is set.
+ *
+ * Decoders:
+ * The decoder has a non-zero delay and needs to be fed with avpkt->data=NULL,
+ * avpkt->size=0 at the end to get the delayed data until the decoder no longer
+ * returns frames.
+ *
+ * Encoders:
+ * The encoder needs to be fed with NULL data at the end of encoding until the
+ * encoder no longer returns data.
+ *
+ * NOTE: For encoders implementing the AVCodec.encode2() function, setting this
+ *       flag also means that the encoder must set the pts and duration for
+ *       each output packet. If this flag is not set, the pts and duration will
+ *       be determined by libavcodec from the input frame.
+ */
+#define AV_CODEC_CAP_DELAY               (1 <<  5)
+/**
+ * Codec can be fed a final frame with a smaller size.
+ * This can be used to prevent truncation of the last audio samples.
+ */
+#define AV_CODEC_CAP_SMALL_LAST_FRAME    (1 <<  6)
+
+/**
+ * Codec can output multiple frames per AVPacket
+ * Normally demuxers return one frame at a time, demuxers which do not do
+ * are connected to a parser to split what they return into proper frames.
+ * This flag is reserved to the very rare category of codecs which have a
+ * bitstream that cannot be split into frames without timeconsuming
+ * operations like full decoding. Demuxers carrying such bitstreams thus
+ * may return multiple frames in a packet. This has many disadvantages like
+ * prohibiting stream copy in many cases thus it should only be considered
+ * as a last resort.
+ */
+#define AV_CODEC_CAP_SUBFRAMES           (1 <<  8)
+/**
+ * Codec is experimental and is thus avoided in favor of non experimental
+ * encoders
+ */
+#define AV_CODEC_CAP_EXPERIMENTAL        (1 <<  9)
+/**
+ * Codec should fill in channel configuration and samplerate instead of container
+ */
+#define AV_CODEC_CAP_CHANNEL_CONF        (1 << 10)
+/**
+ * Codec supports frame-level multithreading.
+ */
+#define AV_CODEC_CAP_FRAME_THREADS       (1 << 12)
+/**
+ * Codec supports slice-based (or partition-based) multithreading.
+ */
+#define AV_CODEC_CAP_SLICE_THREADS       (1 << 13)
+/**
+ * Codec supports changed parameters at any point.
+ */
+#define AV_CODEC_CAP_PARAM_CHANGE        (1 << 14)
+/**
+ * Codec supports avctx->thread_count == 0 (auto).
+ */
+#define AV_CODEC_CAP_AUTO_THREADS        (1 << 15)
+/**
+ * Audio encoder supports receiving a different number of samples in each call.
+ */
+#define AV_CODEC_CAP_VARIABLE_FRAME_SIZE (1 << 16)
+/**
+ * Decoder is not a preferred choice for probing.
+ * This indicates that the decoder is not a good choice for probing.
+ * It could for example be an expensive to spin up hardware decoder,
+ * or it could simply not provide a lot of useful information about
+ * the stream.
+ * A decoder marked with this flag should only be used as last resort
+ * choice for probing.
+ */
+#define AV_CODEC_CAP_AVOID_PROBING       (1 << 17)
+/**
+ * Codec is intra only.
+ */
+#define AV_CODEC_CAP_INTRA_ONLY       0x40000000
+/**
+ * Codec is lossless.
+ */
+#define AV_CODEC_CAP_LOSSLESS         0x80000000
+
+/**
+ * Codec is backed by a hardware implementation. Typically used to
+ * identify a non-hwaccel hardware decoder. For information about hwaccels, use
+ * avcodec_get_hw_config() instead.
+ */
+#define AV_CODEC_CAP_HARDWARE            (1 << 18)
+
+/**
+ * Codec is potentially backed by a hardware implementation, but not
+ * necessarily. This is used instead of AV_CODEC_CAP_HARDWARE, if the
+ * implementation provides some sort of internal fallback.
+ */
+#define AV_CODEC_CAP_HYBRID              (1 << 19)
+
+/**
+ * This codec takes the reordered_opaque field from input AVFrames
+ * and returns it in the corresponding field in AVCodecContext after
+ * encoding.
+ */
+#define AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE (1 << 20)
+
+/**
+ * Pan Scan area.
+ * This specifies the area which should be displayed.
+ * Note there may be multiple such areas for one frame.
+ */
+typedef struct AVPanScan {
+    /**
+     * id
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     */
+    int id;
+
+    /**
+     * width and height in 1/16 pel
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     */
+    int width;
+    int height;
+
+    /**
+     * position of the top left corner in 1/16 pel for up to 3 fields/frames
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     */
+    int16_t position[3][2];
+} AVPanScan;
+
+/**
+ * This structure describes the bitrate properties of an encoded bitstream. It
+ * roughly corresponds to a subset the VBV parameters for MPEG-2 or HRD
+ * parameters for H.264/HEVC.
+ */
+typedef struct AVCPBProperties {
+    /**
+     * Maximum bitrate of the stream, in bits per second.
+     * Zero if unknown or unspecified.
+     */
+#if FF_API_UNSANITIZED_BITRATES
+    int max_bitrate;
+#else
+    int64_t max_bitrate;
+#endif
+    /**
+     * Minimum bitrate of the stream, in bits per second.
+     * Zero if unknown or unspecified.
+     */
+#if FF_API_UNSANITIZED_BITRATES
+    int min_bitrate;
+#else
+    int64_t min_bitrate;
+#endif
+    /**
+     * Average bitrate of the stream, in bits per second.
+     * Zero if unknown or unspecified.
+     */
+#if FF_API_UNSANITIZED_BITRATES
+    int avg_bitrate;
+#else
+    int64_t avg_bitrate;
+#endif
+
+    /**
+     * The size of the buffer to which the ratecontrol is applied, in bits.
+     * Zero if unknown or unspecified.
+     */
+    int buffer_size;
+
+    /**
+     * The delay between the time the packet this structure is associated with
+     * is received and the time when it should be decoded, in periods of a 27MHz
+     * clock.
+     *
+     * UINT64_MAX when unknown or unspecified.
+     */
+    uint64_t vbv_delay;
+} AVCPBProperties;
+
+/**
+ * The decoder will keep a reference to the frame and may reuse it later.
+ */
+#define AV_GET_BUFFER_FLAG_REF (1 << 0)
+
+/**
+ * @defgroup lavc_packet AVPacket
+ *
+ * Types and functions for working with AVPacket.
+ * @{
+ */
+enum AVPacketSideDataType {
+    /**
+     * An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE
+     * bytes worth of palette. This side data signals that a new palette is
+     * present.
+     */
+    AV_PKT_DATA_PALETTE,
+
+    /**
+     * The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format
+     * that the extradata buffer was changed and the receiving side should
+     * act upon it appropriately. The new extradata is embedded in the side
+     * data buffer and should be immediately used for processing the current
+     * frame or packet.
+     */
+    AV_PKT_DATA_NEW_EXTRADATA,
+
+    /**
+     * An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows:
+     * @code
+     * u32le param_flags
+     * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT)
+     *     s32le channel_count
+     * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT)
+     *     u64le channel_layout
+     * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE)
+     *     s32le sample_rate
+     * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS)
+     *     s32le width
+     *     s32le height
+     * @endcode
+     */
+    AV_PKT_DATA_PARAM_CHANGE,
+
+    /**
+     * An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of
+     * structures with info about macroblocks relevant to splitting the
+     * packet into smaller packets on macroblock edges (e.g. as for RFC 2190).
+     * That is, it does not necessarily contain info about all macroblocks,
+     * as long as the distance between macroblocks in the info is smaller
+     * than the target payload size.
+     * Each MB info structure is 12 bytes, and is laid out as follows:
+     * @code
+     * u32le bit offset from the start of the packet
+     * u8    current quantizer at the start of the macroblock
+     * u8    GOB number
+     * u16le macroblock address within the GOB
+     * u8    horizontal MV predictor
+     * u8    vertical MV predictor
+     * u8    horizontal MV predictor for block number 3
+     * u8    vertical MV predictor for block number 3
+     * @endcode
+     */
+    AV_PKT_DATA_H263_MB_INFO,
+
+    /**
+     * This side data should be associated with an audio stream and contains
+     * ReplayGain information in form of the AVReplayGain struct.
+     */
+    AV_PKT_DATA_REPLAYGAIN,
+
+    /**
+     * This side data contains a 3x3 transformation matrix describing an affine
+     * transformation that needs to be applied to the decoded video frames for
+     * correct presentation.
+     *
+     * See libavutil/display.h for a detailed description of the data.
+     */
+    AV_PKT_DATA_DISPLAYMATRIX,
+
+    /**
+     * This side data should be associated with a video stream and contains
+     * Stereoscopic 3D information in form of the AVStereo3D struct.
+     */
+    AV_PKT_DATA_STEREO3D,
+
+    /**
+     * This side data should be associated with an audio stream and corresponds
+     * to enum AVAudioServiceType.
+     */
+    AV_PKT_DATA_AUDIO_SERVICE_TYPE,
+
+    /**
+     * This side data contains quality related information from the encoder.
+     * @code
+     * u32le quality factor of the compressed frame. Allowed range is between 1 (good) and FF_LAMBDA_MAX (bad).
+     * u8    picture type
+     * u8    error count
+     * u16   reserved
+     * u64le[error count] sum of squared differences between encoder in and output
+     * @endcode
+     */
+    AV_PKT_DATA_QUALITY_STATS,
+
+    /**
+     * This side data contains an integer value representing the stream index
+     * of a "fallback" track.  A fallback track indicates an alternate
+     * track to use when the current track can not be decoded for some reason.
+     * e.g. no decoder available for codec.
+     */
+    AV_PKT_DATA_FALLBACK_TRACK,
+
+    /**
+     * This side data corresponds to the AVCPBProperties struct.
+     */
+    AV_PKT_DATA_CPB_PROPERTIES,
+
+    /**
+     * Recommmends skipping the specified number of samples
+     * @code
+     * u32le number of samples to skip from start of this packet
+     * u32le number of samples to skip from end of this packet
+     * u8    reason for start skip
+     * u8    reason for end   skip (0=padding silence, 1=convergence)
+     * @endcode
+     */
+    AV_PKT_DATA_SKIP_SAMPLES,
+
+    /**
+     * An AV_PKT_DATA_JP_DUALMONO side data packet indicates that
+     * the packet may contain "dual mono" audio specific to Japanese DTV
+     * and if it is true, recommends only the selected channel to be used.
+     * @code
+     * u8    selected channels (0=mail/left, 1=sub/right, 2=both)
+     * @endcode
+     */
+    AV_PKT_DATA_JP_DUALMONO,
+
+    /**
+     * A list of zero terminated key/value strings. There is no end marker for
+     * the list, so it is required to rely on the side data size to stop.
+     */
+    AV_PKT_DATA_STRINGS_METADATA,
+
+    /**
+     * Subtitle event position
+     * @code
+     * u32le x1
+     * u32le y1
+     * u32le x2
+     * u32le y2
+     * @endcode
+     */
+    AV_PKT_DATA_SUBTITLE_POSITION,
+
+    /**
+     * Data found in BlockAdditional element of matroska container. There is
+     * no end marker for the data, so it is required to rely on the side data
+     * size to recognize the end. 8 byte id (as found in BlockAddId) followed
+     * by data.
+     */
+    AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
+
+    /**
+     * The optional first identifier line of a WebVTT cue.
+     */
+    AV_PKT_DATA_WEBVTT_IDENTIFIER,
+
+    /**
+     * The optional settings (rendering instructions) that immediately
+     * follow the timestamp specifier of a WebVTT cue.
+     */
+    AV_PKT_DATA_WEBVTT_SETTINGS,
+
+    /**
+     * A list of zero terminated key/value strings. There is no end marker for
+     * the list, so it is required to rely on the side data size to stop. This
+     * side data includes updated metadata which appeared in the stream.
+     */
+    AV_PKT_DATA_METADATA_UPDATE,
+
+    /**
+     * MPEGTS stream ID as uint8_t, this is required to pass the stream ID
+     * information from the demuxer to the corresponding muxer.
+     */
+    AV_PKT_DATA_MPEGTS_STREAM_ID,
+
+    /**
+     * Mastering display metadata (based on SMPTE-2086:2014). This metadata
+     * should be associated with a video stream and contains data in the form
+     * of the AVMasteringDisplayMetadata struct.
+     */
+    AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
+
+    /**
+     * This side data should be associated with a video stream and corresponds
+     * to the AVSphericalMapping structure.
+     */
+    AV_PKT_DATA_SPHERICAL,
+
+    /**
+     * Content light level (based on CTA-861.3). This metadata should be
+     * associated with a video stream and contains data in the form of the
+     * AVContentLightMetadata struct.
+     */
+    AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
+
+    /**
+     * ATSC A53 Part 4 Closed Captions. This metadata should be associated with
+     * a video stream. A53 CC bitstream is stored as uint8_t in AVPacketSideData.data.
+     * The number of bytes of CC data is AVPacketSideData.size.
+     */
+    AV_PKT_DATA_A53_CC,
+
+    /**
+     * This side data is encryption initialization data.
+     * The format is not part of ABI, use av_encryption_init_info_* methods to
+     * access.
+     */
+    AV_PKT_DATA_ENCRYPTION_INIT_INFO,
+
+    /**
+     * This side data contains encryption info for how to decrypt the packet.
+     * The format is not part of ABI, use av_encryption_info_* methods to access.
+     */
+    AV_PKT_DATA_ENCRYPTION_INFO,
+
+    /**
+     * Active Format Description data consisting of a single byte as specified
+     * in ETSI TS 101 154 using AVActiveFormatDescription enum.
+     */
+    AV_PKT_DATA_AFD,
+
+    /**
+     * The number of side data types.
+     * This is not part of the public API/ABI in the sense that it may
+     * change when new side data types are added.
+     * This must stay the last enum value.
+     * If its value becomes huge, some code using it
+     * needs to be updated as it assumes it to be smaller than other limits.
+     */
+    AV_PKT_DATA_NB
+};
+
+#define AV_PKT_DATA_QUALITY_FACTOR AV_PKT_DATA_QUALITY_STATS //DEPRECATED
+
+typedef struct AVPacketSideData {
+    uint8_t *data;
+    int      size;
+    enum AVPacketSideDataType type;
+} AVPacketSideData;
+
+/**
+ * This structure stores compressed data. It is typically exported by demuxers
+ * and then passed as input to decoders, or received as output from encoders and
+ * then passed to muxers.
+ *
+ * For video, it should typically contain one compressed frame. For audio it may
+ * contain several compressed frames. Encoders are allowed to output empty
+ * packets, with no compressed data, containing only side data
+ * (e.g. to update some stream parameters at the end of encoding).
+ *
+ * AVPacket is one of the few structs in FFmpeg, whose size is a part of public
+ * ABI. Thus it may be allocated on stack and no new fields can be added to it
+ * without libavcodec and libavformat major bump.
+ *
+ * The semantics of data ownership depends on the buf field.
+ * If it is set, the packet data is dynamically allocated and is
+ * valid indefinitely until a call to av_packet_unref() reduces the
+ * reference count to 0.
+ *
+ * If the buf field is not set av_packet_ref() would make a copy instead
+ * of increasing the reference count.
+ *
+ * The side data is always allocated with av_malloc(), copied by
+ * av_packet_ref() and freed by av_packet_unref().
+ *
+ * @see av_packet_ref
+ * @see av_packet_unref
+ */
+typedef struct AVPacket {
+    /**
+     * A reference to the reference-counted buffer where the packet data is
+     * stored.
+     * May be NULL, then the packet data is not reference-counted.
+     */
+    AVBufferRef *buf;
+    /**
+     * Presentation timestamp in AVStream->time_base units; the time at which
+     * the decompressed packet will be presented to the user.
+     * Can be AV_NOPTS_VALUE if it is not stored in the file.
+     * pts MUST be larger or equal to dts as presentation cannot happen before
+     * decompression, unless one wants to view hex dumps. Some formats misuse
+     * the terms dts and pts/cts to mean something different. Such timestamps
+     * must be converted to true pts/dts before they are stored in AVPacket.
+     */
+    int64_t pts;
+    /**
+     * Decompression timestamp in AVStream->time_base units; the time at which
+     * the packet is decompressed.
+     * Can be AV_NOPTS_VALUE if it is not stored in the file.
+     */
+    int64_t dts;
+    uint8_t *data;
+    int   size;
+    int   stream_index;
+    /**
+     * A combination of AV_PKT_FLAG values
+     */
+    int   flags;
+    /**
+     * Additional packet data that can be provided by the container.
+     * Packet can contain several types of side information.
+     */
+    AVPacketSideData *side_data;
+    int side_data_elems;
+
+    /**
+     * Duration of this packet in AVStream->time_base units, 0 if unknown.
+     * Equals next_pts - this_pts in presentation order.
+     */
+    int64_t duration;
+
+    int64_t pos;                            ///< byte position in stream, -1 if unknown
+
+#if FF_API_CONVERGENCE_DURATION
+    /**
+     * @deprecated Same as the duration field, but as int64_t. This was required
+     * for Matroska subtitles, whose duration values could overflow when the
+     * duration field was still an int.
+     */
+    attribute_deprecated
+    int64_t convergence_duration;
+#endif
+} AVPacket;
+#define AV_PKT_FLAG_KEY     0x0001 ///< The packet contains a keyframe
+#define AV_PKT_FLAG_CORRUPT 0x0002 ///< The packet content is corrupted
+/**
+ * Flag is used to discard packets which are required to maintain valid
+ * decoder state but are not required for output and should be dropped
+ * after decoding.
+ **/
+#define AV_PKT_FLAG_DISCARD   0x0004
+/**
+ * The packet comes from a trusted source.
+ *
+ * Otherwise-unsafe constructs such as arbitrary pointers to data
+ * outside the packet may be followed.
+ */
+#define AV_PKT_FLAG_TRUSTED   0x0008
+/**
+ * Flag is used to indicate packets that contain frames that can
+ * be discarded by the decoder.  I.e. Non-reference frames.
+ */
+#define AV_PKT_FLAG_DISPOSABLE 0x0010
+
+
+enum AVSideDataParamChangeFlags {
+    AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT  = 0x0001,
+    AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT = 0x0002,
+    AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE    = 0x0004,
+    AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS     = 0x0008,
+};
+/**
+ * @}
+ */
+
+struct AVCodecInternal;
+
+enum AVFieldOrder {
+    AV_FIELD_UNKNOWN,
+    AV_FIELD_PROGRESSIVE,
+    AV_FIELD_TT,          //< Top coded_first, top displayed first
+    AV_FIELD_BB,          //< Bottom coded first, bottom displayed first
+    AV_FIELD_TB,          //< Top coded first, bottom displayed first
+    AV_FIELD_BT,          //< Bottom coded first, top displayed first
+};
+
+/**
+ * main external API structure.
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * You can use AVOptions (av_opt* / av_set/get*()) to access these fields from user
+ * applications.
+ * The name string for AVOptions options matches the associated command line
+ * parameter name and can be found in libavcodec/options_table.h
+ * The AVOption/command line parameter names differ in some cases from the C
+ * structure field names for historic reasons or brevity.
+ * sizeof(AVCodecContext) must not be used outside libav*.
+ */
+typedef struct AVCodecContext {
+    /**
+     * information on struct for av_log
+     * - set by avcodec_alloc_context3
+     */
+    const AVClass *av_class;
+    int log_level_offset;
+
+    enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */
+    const struct AVCodec  *codec;
+    enum AVCodecID     codec_id; /* see AV_CODEC_ID_xxx */
+
+    /**
+     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
+     * This is used to work around some encoder bugs.
+     * A demuxer should set this to what is stored in the field used to identify the codec.
+     * If there are multiple such fields in a container then the demuxer should choose the one
+     * which maximizes the information about the used codec.
+     * If the codec tag field in a container is larger than 32 bits then the demuxer should
+     * remap the longer ID to 32 bits with a table or other structure. Alternatively a new
+     * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated
+     * first.
+     * - encoding: Set by user, if not then the default based on codec_id will be used.
+     * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
+     */
+    unsigned int codec_tag;
+
+    void *priv_data;
+
+    /**
+     * Private context used for internal data.
+     *
+     * Unlike priv_data, this is not codec-specific. It is used in general
+     * libavcodec functions.
+     */
+    struct AVCodecInternal *internal;
+
+    /**
+     * Private data of the user, can be used to carry app specific stuff.
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     */
+    void *opaque;
+
+    /**
+     * the average bitrate
+     * - encoding: Set by user; unused for constant quantizer encoding.
+     * - decoding: Set by user, may be overwritten by libavcodec
+     *             if this info is available in the stream
+     */
+    int64_t bit_rate;
+
+    /**
+     * number of bits the bitstream is allowed to diverge from the reference.
+     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
+     * - encoding: Set by user; unused for constant quantizer encoding.
+     * - decoding: unused
+     */
+    int bit_rate_tolerance;
+
+    /**
+     * Global quality for codecs which cannot change it per frame.
+     * This should be proportional to MPEG-1/2/4 qscale.
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int global_quality;
+
+    /**
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int compression_level;
+#define FF_COMPRESSION_DEFAULT -1
+
+    /**
+     * AV_CODEC_FLAG_*.
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     */
+    int flags;
+
+    /**
+     * AV_CODEC_FLAG2_*
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     */
+    int flags2;
+
+    /**
+     * some codecs need / can use extradata like Huffman tables.
+     * MJPEG: Huffman tables
+     * rv10: additional flags
+     * MPEG-4: global headers (they can be in the bitstream or here)
+     * The allocated memory should be AV_INPUT_BUFFER_PADDING_SIZE bytes larger
+     * than extradata_size to avoid problems if it is read with the bitstream reader.
+     * The bytewise contents of extradata must not depend on the architecture or CPU endianness.
+     * Must be allocated with the av_malloc() family of functions.
+     * - encoding: Set/allocated/freed by libavcodec.
+     * - decoding: Set/allocated/freed by user.
+     */
+    uint8_t *extradata;
+    int extradata_size;
+
+    /**
+     * This is the fundamental unit of time (in seconds) in terms
+     * of which frame timestamps are represented. For fixed-fps content,
+     * timebase should be 1/framerate and timestamp increments should be
+     * identically 1.
+     * This often, but not always is the inverse of the frame rate or field rate
+     * for video. 1/time_base is not the average frame rate if the frame rate is not
+     * constant.
+     *
+     * Like containers, elementary streams also can store timestamps, 1/time_base
+     * is the unit in which these timestamps are specified.
+     * As example of such codec time base see ISO/IEC 14496-2:2001(E)
+     * vop_time_increment_resolution and fixed_vop_rate
+     * (fixed_vop_rate == 0 implies that it is different from the framerate)
+     *
+     * - encoding: MUST be set by user.
+     * - decoding: the use of this field for decoding is deprecated.
+     *             Use framerate instead.
+     */
+    AVRational time_base;
+
+    /**
+     * For some codecs, the time base is closer to the field rate than the frame rate.
+     * Most notably, H.264 and MPEG-2 specify time_base as half of frame duration
+     * if no telecine is used ...
+     *
+     * Set to time_base ticks per frame. Default 1, e.g., H.264/MPEG-2 set it to 2.
+     */
+    int ticks_per_frame;
+
+    /**
+     * Codec delay.
+     *
+     * Encoding: Number of frames delay there will be from the encoder input to
+     *           the decoder output. (we assume the decoder matches the spec)
+     * Decoding: Number of frames delay in addition to what a standard decoder
+     *           as specified in the spec would produce.
+     *
+     * Video:
+     *   Number of frames the decoded output will be delayed relative to the
+     *   encoded input.
+     *
+     * Audio:
+     *   For encoding, this field is unused (see initial_padding).
+     *
+     *   For decoding, this is the number of samples the decoder needs to
+     *   output before the decoder's output is valid. When seeking, you should
+     *   start decoding this many samples prior to your desired seek point.
+     *
+     * - encoding: Set by libavcodec.
+     * - decoding: Set by libavcodec.
+     */
+    int delay;
+
+
+    /* video only */
+    /**
+     * picture width / height.
+     *
+     * @note Those fields may not match the values of the last
+     * AVFrame output by avcodec_decode_video2 due frame
+     * reordering.
+     *
+     * - encoding: MUST be set by user.
+     * - decoding: May be set by the user before opening the decoder if known e.g.
+     *             from the container. Some decoders will require the dimensions
+     *             to be set by the caller. During decoding, the decoder may
+     *             overwrite those values as required while parsing the data.
+     */
+    int width, height;
+
+    /**
+     * Bitstream width / height, may be different from width/height e.g. when
+     * the decoded frame is cropped before being output or lowres is enabled.
+     *
+     * @note Those field may not match the value of the last
+     * AVFrame output by avcodec_receive_frame() due frame
+     * reordering.
+     *
+     * - encoding: unused
+     * - decoding: May be set by the user before opening the decoder if known
+     *             e.g. from the container. During decoding, the decoder may
+     *             overwrite those values as required while parsing the data.
+     */
+    int coded_width, coded_height;
+
+    /**
+     * the number of pictures in a group of pictures, or 0 for intra_only
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int gop_size;
+
+    /**
+     * Pixel format, see AV_PIX_FMT_xxx.
+     * May be set by the demuxer if known from headers.
+     * May be overridden by the decoder if it knows better.
+     *
+     * @note This field may not match the value of the last
+     * AVFrame output by avcodec_receive_frame() due frame
+     * reordering.
+     *
+     * - encoding: Set by user.
+     * - decoding: Set by user if known, overridden by libavcodec while
+     *             parsing the data.
+     */
+    enum AVPixelFormat pix_fmt;
+
+    /**
+     * If non NULL, 'draw_horiz_band' is called by the libavcodec
+     * decoder to draw a horizontal band. It improves cache usage. Not
+     * all codecs can do that. You must check the codec capabilities
+     * beforehand.
+     * When multithreading is used, it may be called from multiple threads
+     * at the same time; threads might draw different parts of the same AVFrame,
+     * or multiple AVFrames, and there is no guarantee that slices will be drawn
+     * in order.
+     * The function is also used by hardware acceleration APIs.
+     * It is called at least once during frame decoding to pass
+     * the data needed for hardware render.
+     * In that mode instead of pixel data, AVFrame points to
+     * a structure specific to the acceleration API. The application
+     * reads the structure and can change some fields to indicate progress
+     * or mark state.
+     * - encoding: unused
+     * - decoding: Set by user.
+     * @param height the height of the slice
+     * @param y the y position of the slice
+     * @param type 1->top field, 2->bottom field, 3->frame
+     * @param offset offset into the AVFrame.data from which the slice should be read
+     */
+    void (*draw_horiz_band)(struct AVCodecContext *s,
+                            const AVFrame *src, int offset[AV_NUM_DATA_POINTERS],
+                            int y, int type, int height);
+
+    /**
+     * callback to negotiate the pixelFormat
+     * @param fmt is the list of formats which are supported by the codec,
+     * it is terminated by -1 as 0 is a valid format, the formats are ordered by quality.
+     * The first is always the native one.
+     * @note The callback may be called again immediately if initialization for
+     * the selected (hardware-accelerated) pixel format failed.
+     * @warning Behavior is undefined if the callback returns a value not
+     * in the fmt list of formats.
+     * @return the chosen format
+     * - encoding: unused
+     * - decoding: Set by user, if not set the native format will be chosen.
+     */
+    enum AVPixelFormat (*get_format)(struct AVCodecContext *s, const enum AVPixelFormat * fmt);
+
+    /**
+     * maximum number of B-frames between non-B-frames
+     * Note: The output will be delayed by max_b_frames+1 relative to the input.
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int max_b_frames;
+
+    /**
+     * qscale factor between IP and B-frames
+     * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset).
+     * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    float b_quant_factor;
+
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int b_frame_strategy;
+#endif
+
+    /**
+     * qscale offset between IP and B-frames
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    float b_quant_offset;
+
+    /**
+     * Size of the frame reordering buffer in the decoder.
+     * For MPEG-2 it is 1 IPB or 0 low delay IP.
+     * - encoding: Set by libavcodec.
+     * - decoding: Set by libavcodec.
+     */
+    int has_b_frames;
+
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int mpeg_quant;
+#endif
+
+    /**
+     * qscale factor between P- and I-frames
+     * If > 0 then the last P-frame quantizer will be used (q = lastp_q * factor + offset).
+     * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    float i_quant_factor;
+
+    /**
+     * qscale offset between P and I-frames
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    float i_quant_offset;
+
+    /**
+     * luminance masking (0-> disabled)
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    float lumi_masking;
+
+    /**
+     * temporary complexity masking (0-> disabled)
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    float temporal_cplx_masking;
+
+    /**
+     * spatial complexity masking (0-> disabled)
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    float spatial_cplx_masking;
+
+    /**
+     * p block masking (0-> disabled)
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    float p_masking;
+
+    /**
+     * darkness masking (0-> disabled)
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    float dark_masking;
+
+    /**
+     * slice count
+     * - encoding: Set by libavcodec.
+     * - decoding: Set by user (or 0).
+     */
+    int slice_count;
+
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+     int prediction_method;
+#define FF_PRED_LEFT   0
+#define FF_PRED_PLANE  1
+#define FF_PRED_MEDIAN 2
+#endif
+
+    /**
+     * slice offsets in the frame in bytes
+     * - encoding: Set/allocated by libavcodec.
+     * - decoding: Set/allocated by user (or NULL).
+     */
+    int *slice_offset;
+
+    /**
+     * sample aspect ratio (0 if unknown)
+     * That is the width of a pixel divided by the height of the pixel.
+     * Numerator and denominator must be relatively prime and smaller than 256 for some video standards.
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     */
+    AVRational sample_aspect_ratio;
+
+    /**
+     * motion estimation comparison function
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int me_cmp;
+    /**
+     * subpixel motion estimation comparison function
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int me_sub_cmp;
+    /**
+     * macroblock comparison function (not supported yet)
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int mb_cmp;
+    /**
+     * interlaced DCT comparison function
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int ildct_cmp;
+#define FF_CMP_SAD          0
+#define FF_CMP_SSE          1
+#define FF_CMP_SATD         2
+#define FF_CMP_DCT          3
+#define FF_CMP_PSNR         4
+#define FF_CMP_BIT          5
+#define FF_CMP_RD           6
+#define FF_CMP_ZERO         7
+#define FF_CMP_VSAD         8
+#define FF_CMP_VSSE         9
+#define FF_CMP_NSSE         10
+#define FF_CMP_W53          11
+#define FF_CMP_W97          12
+#define FF_CMP_DCTMAX       13
+#define FF_CMP_DCT264       14
+#define FF_CMP_MEDIAN_SAD   15
+#define FF_CMP_CHROMA       256
+
+    /**
+     * ME diamond size & shape
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int dia_size;
+
+    /**
+     * amount of previous MV predictors (2a+1 x 2a+1 square)
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int last_predictor_count;
+
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int pre_me;
+#endif
+
+    /**
+     * motion estimation prepass comparison function
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int me_pre_cmp;
+
+    /**
+     * ME prepass diamond size & shape
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int pre_dia_size;
+
+    /**
+     * subpel ME quality
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int me_subpel_quality;
+
+    /**
+     * maximum motion estimation search range in subpel units
+     * If 0 then no limit.
+     *
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int me_range;
+
+    /**
+     * slice flags
+     * - encoding: unused
+     * - decoding: Set by user.
+     */
+    int slice_flags;
+#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
+#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG-2 field pics)
+#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
+
+    /**
+     * macroblock decision mode
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int mb_decision;
+#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
+#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
+#define FF_MB_DECISION_RD     2        ///< rate distortion
+
+    /**
+     * custom intra quantization matrix
+     * Must be allocated with the av_malloc() family of functions, and will be freed in
+     * avcodec_free_context().
+     * - encoding: Set/allocated by user, freed by libavcodec. Can be NULL.
+     * - decoding: Set/allocated/freed by libavcodec.
+     */
+    uint16_t *intra_matrix;
+
+    /**
+     * custom inter quantization matrix
+     * Must be allocated with the av_malloc() family of functions, and will be freed in
+     * avcodec_free_context().
+     * - encoding: Set/allocated by user, freed by libavcodec. Can be NULL.
+     * - decoding: Set/allocated/freed by libavcodec.
+     */
+    uint16_t *inter_matrix;
+
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int scenechange_threshold;
+
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int noise_reduction;
+#endif
+
+    /**
+     * precision of the intra DC coefficient - 8
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec
+     */
+    int intra_dc_precision;
+
+    /**
+     * Number of macroblock rows at the top which are skipped.
+     * - encoding: unused
+     * - decoding: Set by user.
+     */
+    int skip_top;
+
+    /**
+     * Number of macroblock rows at the bottom which are skipped.
+     * - encoding: unused
+     * - decoding: Set by user.
+     */
+    int skip_bottom;
+
+    /**
+     * minimum MB Lagrange multiplier
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int mb_lmin;
+
+    /**
+     * maximum MB Lagrange multiplier
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int mb_lmax;
+
+#if FF_API_PRIVATE_OPT
+    /**
+     * @deprecated use encoder private options instead
+     */
+    attribute_deprecated
+    int me_penalty_compensation;
+#endif
+
+    /**
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int bidir_refine;
+
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int brd_scale;
+#endif
+
+    /**
+     * minimum GOP size
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int keyint_min;
+
+    /**
+     * number of reference frames
+     * - encoding: Set by user.
+     * - decoding: Set by lavc.
+     */
+    int refs;
+
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int chromaoffset;
+#endif
+
+    /**
+     * Note: Value depends upon the compare function used for fullpel ME.
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int mv0_threshold;
+
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int b_sensitivity;
+#endif
+
+    /**
+     * Chromaticity coordinates of the source primaries.
+     * - encoding: Set by user
+     * - decoding: Set by libavcodec
+     */
+    enum AVColorPrimaries color_primaries;
+
+    /**
+     * Color Transfer Characteristic.
+     * - encoding: Set by user
+     * - decoding: Set by libavcodec
+     */
+    enum AVColorTransferCharacteristic color_trc;
+
+    /**
+     * YUV colorspace type.
+     * - encoding: Set by user
+     * - decoding: Set by libavcodec
+     */
+    enum AVColorSpace colorspace;
+
+    /**
+     * MPEG vs JPEG YUV range.
+     * - encoding: Set by user
+     * - decoding: Set by libavcodec
+     */
+    enum AVColorRange color_range;
+
+    /**
+     * This defines the location of chroma samples.
+     * - encoding: Set by user
+     * - decoding: Set by libavcodec
+     */
+    enum AVChromaLocation chroma_sample_location;
+
+    /**
+     * Number of slices.
+     * Indicates number of picture subdivisions. Used for parallelized
+     * decoding.
+     * - encoding: Set by user
+     * - decoding: unused
+     */
+    int slices;
+
+    /** Field order
+     * - encoding: set by libavcodec
+     * - decoding: Set by user.
+     */
+    enum AVFieldOrder field_order;
+
+    /* audio only */
+    int sample_rate; ///< samples per second
+    int channels;    ///< number of audio channels
+
+    /**
+     * audio sample format
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     */
+    enum AVSampleFormat sample_fmt;  ///< sample format
+
+    /* The following data should not be initialized. */
+    /**
+     * Number of samples per channel in an audio frame.
+     *
+     * - encoding: set by libavcodec in avcodec_open2(). Each submitted frame
+     *   except the last must contain exactly frame_size samples per channel.
+     *   May be 0 when the codec has AV_CODEC_CAP_VARIABLE_FRAME_SIZE set, then the
+     *   frame size is not restricted.
+     * - decoding: may be set by some decoders to indicate constant frame size
+     */
+    int frame_size;
+
+    /**
+     * Frame counter, set by libavcodec.
+     *
+     * - decoding: total number of frames returned from the decoder so far.
+     * - encoding: total number of frames passed to the encoder so far.
+     *
+     *   @note the counter is not incremented if encoding/decoding resulted in
+     *   an error.
+     */
+    int frame_number;
+
+    /**
+     * number of bytes per packet if constant and known or 0
+     * Used by some WAV based audio codecs.
+     */
+    int block_align;
+
+    /**
+     * Audio cutoff bandwidth (0 means "automatic")
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int cutoff;
+
+    /**
+     * Audio channel layout.
+     * - encoding: set by user.
+     * - decoding: set by user, may be overwritten by libavcodec.
+     */
+    uint64_t channel_layout;
+
+    /**
+     * Request decoder to use this channel layout if it can (0 for default)
+     * - encoding: unused
+     * - decoding: Set by user.
+     */
+    uint64_t request_channel_layout;
+
+    /**
+     * Type of service that the audio stream conveys.
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     */
+    enum AVAudioServiceType audio_service_type;
+
+    /**
+     * desired sample format
+     * - encoding: Not used.
+     * - decoding: Set by user.
+     * Decoder will decode to this format if it can.
+     */
+    enum AVSampleFormat request_sample_fmt;
+
+    /**
+     * This callback is called at the beginning of each frame to get data
+     * buffer(s) for it. There may be one contiguous buffer for all the data or
+     * there may be a buffer per each data plane or anything in between. What
+     * this means is, you may set however many entries in buf[] you feel necessary.
+     * Each buffer must be reference-counted using the AVBuffer API (see description
+     * of buf[] below).
+     *
+     * The following fields will be set in the frame before this callback is
+     * called:
+     * - format
+     * - width, height (video only)
+     * - sample_rate, channel_layout, nb_samples (audio only)
+     * Their values may differ from the corresponding values in
+     * AVCodecContext. This callback must use the frame values, not the codec
+     * context values, to calculate the required buffer size.
+     *
+     * This callback must fill the following fields in the frame:
+     * - data[]
+     * - linesize[]
+     * - extended_data:
+     *   * if the data is planar audio with more than 8 channels, then this
+     *     callback must allocate and fill extended_data to contain all pointers
+     *     to all data planes. data[] must hold as many pointers as it can.
+     *     extended_data must be allocated with av_malloc() and will be freed in
+     *     av_frame_unref().
+     *   * otherwise extended_data must point to data
+     * - buf[] must contain one or more pointers to AVBufferRef structures. Each of
+     *   the frame's data and extended_data pointers must be contained in these. That
+     *   is, one AVBufferRef for each allocated chunk of memory, not necessarily one
+     *   AVBufferRef per data[] entry. See: av_buffer_create(), av_buffer_alloc(),
+     *   and av_buffer_ref().
+     * - extended_buf and nb_extended_buf must be allocated with av_malloc() by
+     *   this callback and filled with the extra buffers if there are more
+     *   buffers than buf[] can hold. extended_buf will be freed in
+     *   av_frame_unref().
+     *
+     * If AV_CODEC_CAP_DR1 is not set then get_buffer2() must call
+     * avcodec_default_get_buffer2() instead of providing buffers allocated by
+     * some other means.
+     *
+     * Each data plane must be aligned to the maximum required by the target
+     * CPU.
+     *
+     * @see avcodec_default_get_buffer2()
+     *
+     * Video:
+     *
+     * If AV_GET_BUFFER_FLAG_REF is set in flags then the frame may be reused
+     * (read and/or written to if it is writable) later by libavcodec.
+     *
+     * avcodec_align_dimensions2() should be used to find the required width and
+     * height, as they normally need to be rounded up to the next multiple of 16.
+     *
+     * Some decoders do not support linesizes changing between frames.
+     *
+     * If frame multithreading is used and thread_safe_callbacks is set,
+     * this callback may be called from a different thread, but not from more
+     * than one at once. Does not need to be reentrant.
+     *
+     * @see avcodec_align_dimensions2()
+     *
+     * Audio:
+     *
+     * Decoders request a buffer of a particular size by setting
+     * AVFrame.nb_samples prior to calling get_buffer2(). The decoder may,
+     * however, utilize only part of the buffer by setting AVFrame.nb_samples
+     * to a smaller value in the output frame.
+     *
+     * As a convenience, av_samples_get_buffer_size() and
+     * av_samples_fill_arrays() in libavutil may be used by custom get_buffer2()
+     * functions to find the required data size and to fill data pointers and
+     * linesize. In AVFrame.linesize, only linesize[0] may be set for audio
+     * since all planes must be the same size.
+     *
+     * @see av_samples_get_buffer_size(), av_samples_fill_arrays()
+     *
+     * - encoding: unused
+     * - decoding: Set by libavcodec, user can override.
+     */
+    int (*get_buffer2)(struct AVCodecContext *s, AVFrame *frame, int flags);
+
+    /**
+     * If non-zero, the decoded audio and video frames returned from
+     * avcodec_decode_video2() and avcodec_decode_audio4() are reference-counted
+     * and are valid indefinitely. The caller must free them with
+     * av_frame_unref() when they are not needed anymore.
+     * Otherwise, the decoded frames must not be freed by the caller and are
+     * only valid until the next decode call.
+     *
+     * This is always automatically enabled if avcodec_receive_frame() is used.
+     *
+     * - encoding: unused
+     * - decoding: set by the caller before avcodec_open2().
+     */
+    attribute_deprecated
+    int refcounted_frames;
+
+    /* - encoding parameters */
+    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
+    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0)
+
+    /**
+     * minimum quantizer
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int qmin;
+
+    /**
+     * maximum quantizer
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int qmax;
+
+    /**
+     * maximum quantizer difference between frames
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int max_qdiff;
+
+    /**
+     * decoder bitstream buffer size
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int rc_buffer_size;
+
+    /**
+     * ratecontrol override, see RcOverride
+     * - encoding: Allocated/set/freed by user.
+     * - decoding: unused
+     */
+    int rc_override_count;
+    RcOverride *rc_override;
+
+    /**
+     * maximum bitrate
+     * - encoding: Set by user.
+     * - decoding: Set by user, may be overwritten by libavcodec.
+     */
+    int64_t rc_max_rate;
+
+    /**
+     * minimum bitrate
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int64_t rc_min_rate;
+
+    /**
+     * Ratecontrol attempt to use, at maximum, <value> of what can be used without an underflow.
+     * - encoding: Set by user.
+     * - decoding: unused.
+     */
+    float rc_max_available_vbv_use;
+
+    /**
+     * Ratecontrol attempt to use, at least, <value> times the amount needed to prevent a vbv overflow.
+     * - encoding: Set by user.
+     * - decoding: unused.
+     */
+    float rc_min_vbv_overflow_use;
+
+    /**
+     * Number of bits which should be loaded into the rc buffer before decoding starts.
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int rc_initial_buffer_occupancy;
+
+#if FF_API_CODER_TYPE
+#define FF_CODER_TYPE_VLC       0
+#define FF_CODER_TYPE_AC        1
+#define FF_CODER_TYPE_RAW       2
+#define FF_CODER_TYPE_RLE       3
+    /**
+     * @deprecated use encoder private options instead
+     */
+    attribute_deprecated
+    int coder_type;
+#endif /* FF_API_CODER_TYPE */
+
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int context_model;
+#endif
+
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int frame_skip_threshold;
+
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int frame_skip_factor;
+
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int frame_skip_exp;
+
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int frame_skip_cmp;
+#endif /* FF_API_PRIVATE_OPT */
+
+    /**
+     * trellis RD quantization
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int trellis;
+
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int min_prediction_order;
+
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int max_prediction_order;
+
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int64_t timecode_frame_start;
+#endif
+
+#if FF_API_RTP_CALLBACK
+    /**
+     * @deprecated unused
+     */
+    /* The RTP callback: This function is called    */
+    /* every time the encoder has a packet to send. */
+    /* It depends on the encoder if the data starts */
+    /* with a Start Code (it should). H.263 does.   */
+    /* mb_nb contains the number of macroblocks     */
+    /* encoded in the RTP payload.                  */
+    attribute_deprecated
+    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
+#endif
+
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
+    int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
+                            /* do its best to deliver a chunk with size     */
+                            /* below rtp_payload_size, the chunk will start */
+                            /* with a start code on some codecs like H.263. */
+                            /* This doesn't take account of any particular  */
+                            /* headers inside the transmitted RTP payload.  */
+#endif
+
+#if FF_API_STAT_BITS
+    /* statistics, used for 2-pass encoding */
+    attribute_deprecated
+    int mv_bits;
+    attribute_deprecated
+    int header_bits;
+    attribute_deprecated
+    int i_tex_bits;
+    attribute_deprecated
+    int p_tex_bits;
+    attribute_deprecated
+    int i_count;
+    attribute_deprecated
+    int p_count;
+    attribute_deprecated
+    int skip_count;
+    attribute_deprecated
+    int misc_bits;
+
+    /** @deprecated this field is unused */
+    attribute_deprecated
+    int frame_bits;
+#endif
+
+    /**
+     * pass1 encoding statistics output buffer
+     * - encoding: Set by libavcodec.
+     * - decoding: unused
+     */
+    char *stats_out;
+
+    /**
+     * pass2 encoding statistics input buffer
+     * Concatenated stuff from stats_out of pass1 should be placed here.
+     * - encoding: Allocated/set/freed by user.
+     * - decoding: unused
+     */
+    char *stats_in;
+
+    /**
+     * Work around bugs in encoders which sometimes cannot be detected automatically.
+     * - encoding: Set by user
+     * - decoding: Set by user
+     */
+    int workaround_bugs;
+#define FF_BUG_AUTODETECT       1  ///< autodetection
+#define FF_BUG_XVID_ILACE       4
+#define FF_BUG_UMP4             8
+#define FF_BUG_NO_PADDING       16
+#define FF_BUG_AMV              32
+#define FF_BUG_QPEL_CHROMA      64
+#define FF_BUG_STD_QPEL         128
+#define FF_BUG_QPEL_CHROMA2     256
+#define FF_BUG_DIRECT_BLOCKSIZE 512
+#define FF_BUG_EDGE             1024
+#define FF_BUG_HPEL_CHROMA      2048
+#define FF_BUG_DC_CLIP          4096
+#define FF_BUG_MS               8192 ///< Work around various bugs in Microsoft's broken decoders.
+#define FF_BUG_TRUNCATED       16384
+#define FF_BUG_IEDGE           32768
+
+    /**
+     * strictly follow the standard (MPEG-4, ...).
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     * Setting this to STRICT or higher means the encoder and decoder will
+     * generally do stupid things, whereas setting it to unofficial or lower
+     * will mean the encoder might produce output that is not supported by all
+     * spec-compliant decoders. Decoders don't differentiate between normal,
+     * unofficial and experimental (that is, they always try to decode things
+     * when they can) unless they are explicitly asked to behave stupidly
+     * (=strictly conform to the specs)
+     */
+    int strict_std_compliance;
+#define FF_COMPLIANCE_VERY_STRICT   2 ///< Strictly conform to an older more strict version of the spec or reference software.
+#define FF_COMPLIANCE_STRICT        1 ///< Strictly conform to all the things in the spec no matter what consequences.
+#define FF_COMPLIANCE_NORMAL        0
+#define FF_COMPLIANCE_UNOFFICIAL   -1 ///< Allow unofficial extensions
+#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things.
+
+    /**
+     * error concealment flags
+     * - encoding: unused
+     * - decoding: Set by user.
+     */
+    int error_concealment;
+#define FF_EC_GUESS_MVS   1
+#define FF_EC_DEBLOCK     2
+#define FF_EC_FAVOR_INTER 256
+
+    /**
+     * debug
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     */
+    int debug;
+#define FF_DEBUG_PICT_INFO   1
+#define FF_DEBUG_RC          2
+#define FF_DEBUG_BITSTREAM   4
+#define FF_DEBUG_MB_TYPE     8
+#define FF_DEBUG_QP          16
+#if FF_API_DEBUG_MV
+/**
+ * @deprecated this option does nothing
+ */
+#define FF_DEBUG_MV          32
+#endif
+#define FF_DEBUG_DCT_COEFF   0x00000040
+#define FF_DEBUG_SKIP        0x00000080
+#define FF_DEBUG_STARTCODE   0x00000100
+#define FF_DEBUG_ER          0x00000400
+#define FF_DEBUG_MMCO        0x00000800
+#define FF_DEBUG_BUGS        0x00001000
+#if FF_API_DEBUG_MV
+#define FF_DEBUG_VIS_QP      0x00002000
+#define FF_DEBUG_VIS_MB_TYPE 0x00004000
+#endif
+#define FF_DEBUG_BUFFERS     0x00008000
+#define FF_DEBUG_THREADS     0x00010000
+#define FF_DEBUG_GREEN_MD    0x00800000
+#define FF_DEBUG_NOMC        0x01000000
+
+#if FF_API_DEBUG_MV
+    /**
+     * debug
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     */
+    int debug_mv;
+#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 // visualize forward predicted MVs of P-frames
+#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 // visualize forward predicted MVs of B-frames
+#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 // visualize backward predicted MVs of B-frames
+#endif
+
+    /**
+     * Error recognition; may misdetect some more or less valid parts as errors.
+     * - encoding: unused
+     * - decoding: Set by user.
+     */
+    int err_recognition;
+
+/**
+ * Verify checksums embedded in the bitstream (could be of either encoded or
+ * decoded data, depending on the codec) and print an error message on mismatch.
+ * If AV_EF_EXPLODE is also set, a mismatching checksum will result in the
+ * decoder returning an error.
+ */
+#define AV_EF_CRCCHECK  (1<<0)
+#define AV_EF_BITSTREAM (1<<1)          ///< detect bitstream specification deviations
+#define AV_EF_BUFFER    (1<<2)          ///< detect improper bitstream length
+#define AV_EF_EXPLODE   (1<<3)          ///< abort decoding on minor error detection
+
+#define AV_EF_IGNORE_ERR (1<<15)        ///< ignore errors and continue
+#define AV_EF_CAREFUL    (1<<16)        ///< consider things that violate the spec, are fast to calculate and have not been seen in the wild as errors
+#define AV_EF_COMPLIANT  (1<<17)        ///< consider all spec non compliances as errors
+#define AV_EF_AGGRESSIVE (1<<18)        ///< consider things that a sane encoder should not do as an error
+
+
+    /**
+     * opaque 64-bit number (generally a PTS) that will be reordered and
+     * output in AVFrame.reordered_opaque
+     * - encoding: Set by libavcodec to the reordered_opaque of the input
+     *             frame corresponding to the last returned packet. Only
+     *             supported by encoders with the
+     *             AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE capability.
+     * - decoding: Set by user.
+     */
+    int64_t reordered_opaque;
+
+    /**
+     * Hardware accelerator in use
+     * - encoding: unused.
+     * - decoding: Set by libavcodec
+     */
+    const struct AVHWAccel *hwaccel;
+
+    /**
+     * Hardware accelerator context.
+     * For some hardware accelerators, a global context needs to be
+     * provided by the user. In that case, this holds display-dependent
+     * data FFmpeg cannot instantiate itself. Please refer to the
+     * FFmpeg HW accelerator documentation to know how to fill this
+     * is. e.g. for VA API, this is a struct vaapi_context.
+     * - encoding: unused
+     * - decoding: Set by user
+     */
+    void *hwaccel_context;
+
+    /**
+     * error
+     * - encoding: Set by libavcodec if flags & AV_CODEC_FLAG_PSNR.
+     * - decoding: unused
+     */
+    uint64_t error[AV_NUM_DATA_POINTERS];
+
+    /**
+     * DCT algorithm, see FF_DCT_* below
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+    int dct_algo;
+#define FF_DCT_AUTO    0
+#define FF_DCT_FASTINT 1
+#define FF_DCT_INT     2
+#define FF_DCT_MMX     3
+#define FF_DCT_ALTIVEC 5
+#define FF_DCT_FAAN    6
+
+    /**
+     * IDCT algorithm, see FF_IDCT_* below.
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     */
+    int idct_algo;
+#define FF_IDCT_AUTO          0
+#define FF_IDCT_INT           1
+#define FF_IDCT_SIMPLE        2
+#define FF_IDCT_SIMPLEMMX     3
+#define FF_IDCT_ARM           7
+#define FF_IDCT_ALTIVEC       8
+#define FF_IDCT_SIMPLEARM     10
+#define FF_IDCT_XVID          14
+#define FF_IDCT_SIMPLEARMV5TE 16
+#define FF_IDCT_SIMPLEARMV6   17
+#define FF_IDCT_FAAN          20
+#define FF_IDCT_SIMPLENEON    22
+#define FF_IDCT_NONE          24 /* Used by XvMC to extract IDCT coefficients with FF_IDCT_PERM_NONE */
+#define FF_IDCT_SIMPLEAUTO    128
+
+    /**
+     * bits per sample/pixel from the demuxer (needed for huffyuv).
+     * - encoding: Set by libavcodec.
+     * - decoding: Set by user.
+     */
+     int bits_per_coded_sample;
+
+    /**
+     * Bits per sample/pixel of internal libavcodec pixel/sample format.
+     * - encoding: set by user.
+     * - decoding: set by libavcodec.
+     */
+    int bits_per_raw_sample;
+
+#if FF_API_LOWRES
+    /**
+     * low resolution decoding, 1-> 1/2 size, 2->1/4 size
+     * - encoding: unused
+     * - decoding: Set by user.
+     */
+     int lowres;
+#endif
+
+#if FF_API_CODED_FRAME
+    /**
+     * the picture in the bitstream
+     * - encoding: Set by libavcodec.
+     * - decoding: unused
+     *
+     * @deprecated use the quality factor packet side data instead
+     */
+    attribute_deprecated AVFrame *coded_frame;
+#endif
+
+    /**
+     * thread count
+     * is used to decide how many independent tasks should be passed to execute()
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     */
+    int thread_count;
+
+    /**
+     * Which multithreading methods to use.
+     * Use of FF_THREAD_FRAME will increase decoding delay by one frame per thread,
+     * so clients which cannot provide future frames should not use it.
+     *
+     * - encoding: Set by user, otherwise the default is used.
+     * - decoding: Set by user, otherwise the default is used.
+     */
+    int thread_type;
+#define FF_THREAD_FRAME   1 ///< Decode more than one frame at once
+#define FF_THREAD_SLICE   2 ///< Decode more than one part of a single frame at once
+
+    /**
+     * Which multithreading methods are in use by the codec.
+     * - encoding: Set by libavcodec.
+     * - decoding: Set by libavcodec.
+     */
+    int active_thread_type;
+
+    /**
+     * Set by the client if its custom get_buffer() callback can be called
+     * synchronously from another thread, which allows faster multithreaded decoding.
+     * draw_horiz_band() will be called from other threads regardless of this setting.
+     * Ignored if the default get_buffer() is used.
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     */
+    int thread_safe_callbacks;
+
+    /**
+     * The codec may call this to execute several independent things.
+     * It will return only after finishing all tasks.
+     * The user may replace this with some multithreaded implementation,
+     * the default implementation will execute the parts serially.
+     * @param count the number of things to execute
+     * - encoding: Set by libavcodec, user can override.
+     * - decoding: Set by libavcodec, user can override.
+     */
+    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size);
+
+    /**
+     * The codec may call this to execute several independent things.
+     * It will return only after finishing all tasks.
+     * The user may replace this with some multithreaded implementation,
+     * the default implementation will execute the parts serially.
+     * Also see avcodec_thread_init and e.g. the --enable-pthread configure option.
+     * @param c context passed also to func
+     * @param count the number of things to execute
+     * @param arg2 argument passed unchanged to func
+     * @param ret return values of executed functions, must have space for "count" values. May be NULL.
+     * @param func function that will be called count times, with jobnr from 0 to count-1.
+     *             threadnr will be in the range 0 to c->thread_count-1 < MAX_THREADS and so that no
+     *             two instances of func executing at the same time will have the same threadnr.
+     * @return always 0 currently, but code should handle a future improvement where when any call to func
+     *         returns < 0 no further calls to func may be done and < 0 is returned.
+     * - encoding: Set by libavcodec, user can override.
+     * - decoding: Set by libavcodec, user can override.
+     */
+    int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count);
+
+    /**
+     * noise vs. sse weight for the nsse comparison function
+     * - encoding: Set by user.
+     * - decoding: unused
+     */
+     int nsse_weight;
+
+    /**
+     * profile
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     */
+     int profile;
+#define FF_PROFILE_UNKNOWN -99
+#define FF_PROFILE_RESERVED -100
+
+#define FF_PROFILE_AAC_MAIN 0
+#define FF_PROFILE_AAC_LOW  1
+#define FF_PROFILE_AAC_SSR  2
+#define FF_PROFILE_AAC_LTP  3
+#define FF_PROFILE_AAC_HE   4
+#define FF_PROFILE_AAC_HE_V2 28
+#define FF_PROFILE_AAC_LD   22
+#define FF_PROFILE_AAC_ELD  38
+#define FF_PROFILE_MPEG2_AAC_LOW 128
+#define FF_PROFILE_MPEG2_AAC_HE  131
+
+#define FF_PROFILE_DNXHD         0
+#define FF_PROFILE_DNXHR_LB      1
+#define FF_PROFILE_DNXHR_SQ      2
+#define FF_PROFILE_DNXHR_HQ      3
+#define FF_PROFILE_DNXHR_HQX     4
+#define FF_PROFILE_DNXHR_444     5
+
+#define FF_PROFILE_DTS         20
+#define FF_PROFILE_DTS_ES      30
+#define FF_PROFILE_DTS_96_24   40
+#define FF_PROFILE_DTS_HD_HRA  50
+#define FF_PROFILE_DTS_HD_MA   60
+#define FF_PROFILE_DTS_EXPRESS 70
+
+#define FF_PROFILE_MPEG2_422    0
+#define FF_PROFILE_MPEG2_HIGH   1
+#define FF_PROFILE_MPEG2_SS     2
+#define FF_PROFILE_MPEG2_SNR_SCALABLE  3
+#define FF_PROFILE_MPEG2_MAIN   4
+#define FF_PROFILE_MPEG2_SIMPLE 5
+
+#define FF_PROFILE_H264_CONSTRAINED  (1<<9)  // 8+1; constraint_set1_flag
+#define FF_PROFILE_H264_INTRA        (1<<11) // 8+3; constraint_set3_flag
+
+#define FF_PROFILE_H264_BASELINE             66
+#define FF_PROFILE_H264_CONSTRAINED_BASELINE (66|FF_PROFILE_H264_CONSTRAINED)
+#define FF_PROFILE_H264_MAIN                 77
+#define FF_PROFILE_H264_EXTENDED             88
+#define FF_PROFILE_H264_HIGH                 100
+#define FF_PROFILE_H264_HIGH_10              110
+#define FF_PROFILE_H264_HIGH_10_INTRA        (110|FF_PROFILE_H264_INTRA)
+#define FF_PROFILE_H264_MULTIVIEW_HIGH       118
+#define FF_PROFILE_H264_HIGH_422             122
+#define FF_PROFILE_H264_HIGH_422_INTRA       (122|FF_PROFILE_H264_INTRA)
+#define FF_PROFILE_H264_STEREO_HIGH          128
+#define FF_PROFILE_H264_HIGH_444             144
+#define FF_PROFILE_H264_HIGH_444_PREDICTIVE  244
+#define FF_PROFILE_H264_HIGH_444_INTRA       (244|FF_PROFILE_H264_INTRA)
+#define FF_PROFILE_H264_CAVLC_444            44
+
+#define FF_PROFILE_VC1_SIMPLE   0
+#define FF_PROFILE_VC1_MAIN     1
+#define FF_PROFILE_VC1_COMPLEX  2
+#define FF_PROFILE_VC1_ADVANCED 3
+
+#define FF_PROFILE_MPEG4_SIMPLE                     0
+#define FF_PROFILE_MPEG4_SIMPLE_SCALABLE            1
+#define FF_PROFILE_MPEG4_CORE                       2
+#define FF_PROFILE_MPEG4_MAIN                       3
+#define FF_PROFILE_MPEG4_N_BIT                      4
+#define FF_PROFILE_MPEG4_SCALABLE_TEXTURE           5
+#define FF_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION      6
+#define FF_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE     7
+#define FF_PROFILE_MPEG4_HYBRID                     8
+#define FF_PROFILE_MPEG4_ADVANCED_REAL_TIME         9
+#define FF_PROFILE_MPEG4_CORE_SCALABLE             10
+#define FF_PROFILE_MPEG4_ADVANCED_CODING           11
+#define FF_PROFILE_MPEG4_ADVANCED_CORE             12
+#define FF_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE 13
+#define FF_PROFILE_MPEG4_SIMPLE_STUDIO             14
+#define FF_PROFILE_MPEG4_ADVANCED_SIMPLE           15
+
+#define FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0   1
+#define FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1   2
+#define FF_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION  32768
+#define FF_PROFILE_JPEG2000_DCINEMA_2K              3
+#define FF_PROFILE_JPEG2000_DCINEMA_4K              4
+
+#define FF_PROFILE_VP9_0                            0
+#define FF_PROFILE_VP9_1                            1
+#define FF_PROFILE_VP9_2                            2
+#define FF_PROFILE_VP9_3                            3
+
+#define FF_PROFILE_HEVC_MAIN                        1
+#define FF_PROFILE_HEVC_MAIN_10                     2
+#define FF_PROFILE_HEVC_MAIN_STILL_PICTURE          3
+#define FF_PROFILE_HEVC_REXT                        4
+
+#define FF_PROFILE_AV1_MAIN                         0
+#define FF_PROFILE_AV1_HIGH                         1
+#define FF_PROFILE_AV1_PROFESSIONAL                 2
+
+#define FF_PROFILE_MJPEG_HUFFMAN_BASELINE_DCT            0xc0
+#define FF_PROFILE_MJPEG_HUFFMAN_EXTENDED_SEQUENTIAL_DCT 0xc1
+#define FF_PROFILE_MJPEG_HUFFMAN_PROGRESSIVE_DCT         0xc2
+#define FF_PROFILE_MJPEG_HUFFMAN_LOSSLESS                0xc3
+#define FF_PROFILE_MJPEG_JPEG_LS                         0xf7
+
+#define FF_PROFILE_SBC_MSBC                         1
+
+#define FF_PROFILE_PRORES_PROXY     0
+#define FF_PROFILE_PRORES_LT        1
+#define FF_PROFILE_PRORES_STANDARD  2
+#define FF_PROFILE_PRORES_HQ        3
+#define FF_PROFILE_PRORES_4444      4
+#define FF_PROFILE_PRORES_XQ        5
+
+#define FF_PROFILE_ARIB_PROFILE_A 0
+#define FF_PROFILE_ARIB_PROFILE_C 1
+
+    /**
+     * level
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     */
+     int level;
+#define FF_LEVEL_UNKNOWN -99
+
+    /**
+     * Skip loop filtering for selected frames.
+     * - encoding: unused
+     * - decoding: Set by user.
+     */
+    enum AVDiscard skip_loop_filter;
+
+    /**
+     * Skip IDCT/dequantization for selected frames.
+     * - encoding: unused
+     * - decoding: Set by user.
+     */
+    enum AVDiscard skip_idct;
+
+    /**
+     * Skip decoding for selected frames.
+     * - encoding: unused
+     * - decoding: Set by user.
+     */
+    enum AVDiscard skip_frame;
+
+    /**
+     * Header containing style information for text subtitles.
+     * For SUBTITLE_ASS subtitle type, it should contain the whole ASS
+     * [Script Info] and [V4+ Styles] section, plus the [Events] line and
+     * the Format line following. It shouldn't include any Dialogue line.
+     * - encoding: Set/allocated/freed by user (before avcodec_open2())
+     * - decoding: Set/allocated/freed by libavcodec (by avcodec_open2())
+     */
+    uint8_t *subtitle_header;
+    int subtitle_header_size;
+
+#if FF_API_VBV_DELAY
+    /**
+     * VBV delay coded in the last frame (in periods of a 27 MHz clock).
+     * Used for compliant TS muxing.
+     * - encoding: Set by libavcodec.
+     * - decoding: unused.
+     * @deprecated this value is now exported as a part of
+     * AV_PKT_DATA_CPB_PROPERTIES packet side data
+     */
+    attribute_deprecated
+    uint64_t vbv_delay;
+#endif
+
+#if FF_API_SIDEDATA_ONLY_PKT
+    /**
+     * Encoding only and set by default. Allow encoders to output packets
+     * that do not contain any encoded data, only side data.
+     *
+     * Some encoders need to output such packets, e.g. to update some stream
+     * parameters at the end of encoding.
+     *
+     * @deprecated this field disables the default behaviour and
+     *             it is kept only for compatibility.
+     */
+    attribute_deprecated
+    int side_data_only_packets;
+#endif
+
+    /**
+     * Audio only. The number of "priming" samples (padding) inserted by the
+     * encoder at the beginning of the audio. I.e. this number of leading
+     * decoded samples must be discarded by the caller to get the original audio
+     * without leading padding.
+     *
+     * - decoding: unused
+     * - encoding: Set by libavcodec. The timestamps on the output packets are
+     *             adjusted by the encoder so that they always refer to the
+     *             first sample of the data actually contained in the packet,
+     *             including any added padding.  E.g. if the timebase is
+     *             1/samplerate and the timestamp of the first input sample is
+     *             0, the timestamp of the first output packet will be
+     *             -initial_padding.
+     */
+    int initial_padding;
+
+    /**
+     * - decoding: For codecs that store a framerate value in the compressed
+     *             bitstream, the decoder may export it here. { 0, 1} when
+     *             unknown.
+     * - encoding: May be used to signal the framerate of CFR content to an
+     *             encoder.
+     */
+    AVRational framerate;
+
+    /**
+     * Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
+     * - encoding: unused.
+     * - decoding: Set by libavcodec before calling get_format()
+     */
+    enum AVPixelFormat sw_pix_fmt;
+
+    /**
+     * Timebase in which pkt_dts/pts and AVPacket.dts/pts are.
+     * - encoding unused.
+     * - decoding set by user.
+     */
+    AVRational pkt_timebase;
+
+    /**
+     * AVCodecDescriptor
+     * - encoding: unused.
+     * - decoding: set by libavcodec.
+     */
+    const AVCodecDescriptor *codec_descriptor;
+
+#if !FF_API_LOWRES
+    /**
+     * low resolution decoding, 1-> 1/2 size, 2->1/4 size
+     * - encoding: unused
+     * - decoding: Set by user.
+     */
+     int lowres;
+#endif
+
+    /**
+     * Current statistics for PTS correction.
+     * - decoding: maintained and used by libavcodec, not intended to be used by user apps
+     * - encoding: unused
+     */
+    int64_t pts_correction_num_faulty_pts; /// Number of incorrect PTS values so far
+    int64_t pts_correction_num_faulty_dts; /// Number of incorrect DTS values so far
+    int64_t pts_correction_last_pts;       /// PTS of the last frame
+    int64_t pts_correction_last_dts;       /// DTS of the last frame
+
+    /**
+     * Character encoding of the input subtitles file.
+     * - decoding: set by user
+     * - encoding: unused
+     */
+    char *sub_charenc;
+
+    /**
+     * Subtitles character encoding mode. Formats or codecs might be adjusting
+     * this setting (if they are doing the conversion themselves for instance).
+     * - decoding: set by libavcodec
+     * - encoding: unused
+     */
+    int sub_charenc_mode;
+#define FF_SUB_CHARENC_MODE_DO_NOTHING  -1  ///< do nothing (demuxer outputs a stream supposed to be already in UTF-8, or the codec is bitmap for instance)
+#define FF_SUB_CHARENC_MODE_AUTOMATIC    0  ///< libavcodec will select the mode itself
+#define FF_SUB_CHARENC_MODE_PRE_DECODER  1  ///< the AVPacket data needs to be recoded to UTF-8 before being fed to the decoder, requires iconv
+#define FF_SUB_CHARENC_MODE_IGNORE       2  ///< neither convert the subtitles, nor check them for valid UTF-8
+
+    /**
+     * Skip processing alpha if supported by codec.
+     * Note that if the format uses pre-multiplied alpha (common with VP6,
+     * and recommended due to better video quality/compression)
+     * the image will look as if alpha-blended onto a black background.
+     * However for formats that do not use pre-multiplied alpha
+     * there might be serious artefacts (though e.g. libswscale currently
+     * assumes pre-multiplied alpha anyway).
+     *
+     * - decoding: set by user
+     * - encoding: unused
+     */
+    int skip_alpha;
+
+    /**
+     * Number of samples to skip after a discontinuity
+     * - decoding: unused
+     * - encoding: set by libavcodec
+     */
+    int seek_preroll;
+
+#if !FF_API_DEBUG_MV
+    /**
+     * debug motion vectors
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     */
+    int debug_mv;
+#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
+#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
+#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
+#endif
+
+    /**
+     * custom intra quantization matrix
+     * - encoding: Set by user, can be NULL.
+     * - decoding: unused.
+     */
+    uint16_t *chroma_intra_matrix;
+
+    /**
+     * dump format separator.
+     * can be ", " or "\n      " or anything else
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     */
+    uint8_t *dump_separator;
+
+    /**
+     * ',' separated list of allowed decoders.
+     * If NULL then all are allowed
+     * - encoding: unused
+     * - decoding: set by user
+     */
+    char *codec_whitelist;
+
+    /**
+     * Properties of the stream that gets decoded
+     * - encoding: unused
+     * - decoding: set by libavcodec
+     */
+    unsigned properties;
+#define FF_CODEC_PROPERTY_LOSSLESS        0x00000001
+#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS 0x00000002
+
+    /**
+     * Additional data associated with the entire coded stream.
+     *
+     * - decoding: unused
+     * - encoding: may be set by libavcodec after avcodec_open2().
+     */
+    AVPacketSideData *coded_side_data;
+    int            nb_coded_side_data;
+
+    /**
+     * A reference to the AVHWFramesContext describing the input (for encoding)
+     * or output (decoding) frames. The reference is set by the caller and
+     * afterwards owned (and freed) by libavcodec - it should never be read by
+     * the caller after being set.
+     *
+     * - decoding: This field should be set by the caller from the get_format()
+     *             callback. The previous reference (if any) will always be
+     *             unreffed by libavcodec before the get_format() call.
+     *
+     *             If the default get_buffer2() is used with a hwaccel pixel
+     *             format, then this AVHWFramesContext will be used for
+     *             allocating the frame buffers.
+     *
+     * - encoding: For hardware encoders configured to use a hwaccel pixel
+     *             format, this field should be set by the caller to a reference
+     *             to the AVHWFramesContext describing input frames.
+     *             AVHWFramesContext.format must be equal to
+     *             AVCodecContext.pix_fmt.
+     *
+     *             This field should be set before avcodec_open2() is called.
+     */
+    AVBufferRef *hw_frames_ctx;
+
+    /**
+     * Control the form of AVSubtitle.rects[N]->ass
+     * - decoding: set by user
+     * - encoding: unused
+     */
+    int sub_text_format;
+#define FF_SUB_TEXT_FMT_ASS              0
+#if FF_API_ASS_TIMING
+#define FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS 1
+#endif
+
+    /**
+     * Audio only. The amount of padding (in samples) appended by the encoder to
+     * the end of the audio. I.e. this number of decoded samples must be
+     * discarded by the caller from the end of the stream to get the original
+     * audio without any trailing padding.
+     *
+     * - decoding: unused
+     * - encoding: unused
+     */
+    int trailing_padding;
+
+    /**
+     * The number of pixels per image to maximally accept.
+     *
+     * - decoding: set by user
+     * - encoding: set by user
+     */
+    int64_t max_pixels;
+
+    /**
+     * A reference to the AVHWDeviceContext describing the device which will
+     * be used by a hardware encoder/decoder.  The reference is set by the
+     * caller and afterwards owned (and freed) by libavcodec.
+     *
+     * This should be used if either the codec device does not require
+     * hardware frames or any that are used are to be allocated internally by
+     * libavcodec.  If the user wishes to supply any of the frames used as
+     * encoder input or decoder output then hw_frames_ctx should be used
+     * instead.  When hw_frames_ctx is set in get_format() for a decoder, this
+     * field will be ignored while decoding the associated stream segment, but
+     * may again be used on a following one after another get_format() call.
+     *
+     * For both encoders and decoders this field should be set before
+     * avcodec_open2() is called and must not be written to thereafter.
+     *
+     * Note that some decoders may require this field to be set initially in
+     * order to support hw_frames_ctx at all - in that case, all frames
+     * contexts used must be created on the same device.
+     */
+    AVBufferRef *hw_device_ctx;
+
+    /**
+     * Bit set of AV_HWACCEL_FLAG_* flags, which affect hardware accelerated
+     * decoding (if active).
+     * - encoding: unused
+     * - decoding: Set by user (either before avcodec_open2(), or in the
+     *             AVCodecContext.get_format callback)
+     */
+    int hwaccel_flags;
+
+    /**
+     * Video decoding only. Certain video codecs support cropping, meaning that
+     * only a sub-rectangle of the decoded frame is intended for display.  This
+     * option controls how cropping is handled by libavcodec.
+     *
+     * When set to 1 (the default), libavcodec will apply cropping internally.
+     * I.e. it will modify the output frame width/height fields and offset the
+     * data pointers (only by as much as possible while preserving alignment, or
+     * by the full amount if the AV_CODEC_FLAG_UNALIGNED flag is set) so that
+     * the frames output by the decoder refer only to the cropped area. The
+     * crop_* fields of the output frames will be zero.
+     *
+     * When set to 0, the width/height fields of the output frames will be set
+     * to the coded dimensions and the crop_* fields will describe the cropping
+     * rectangle. Applying the cropping is left to the caller.
+     *
+     * @warning When hardware acceleration with opaque output frames is used,
+     * libavcodec is unable to apply cropping from the top/left border.
+     *
+     * @note when this option is set to zero, the width/height fields of the
+     * AVCodecContext and output AVFrames have different meanings. The codec
+     * context fields store display dimensions (with the coded dimensions in
+     * coded_width/height), while the frame fields store the coded dimensions
+     * (with the display dimensions being determined by the crop_* fields).
+     */
+    int apply_cropping;
+
+    /*
+     * Video decoding only.  Sets the number of extra hardware frames which
+     * the decoder will allocate for use by the caller.  This must be set
+     * before avcodec_open2() is called.
+     *
+     * Some hardware decoders require all frames that they will use for
+     * output to be defined in advance before decoding starts.  For such
+     * decoders, the hardware frame pool must therefore be of a fixed size.
+     * The extra frames set here are on top of any number that the decoder
+     * needs internally in order to operate normally (for example, frames
+     * used as reference pictures).
+     */
+    int extra_hw_frames;
+
+    /**
+     * The percentage of damaged samples to discard a frame.
+     *
+     * - decoding: set by user
+     * - encoding: unused
+     */
+    int discard_damaged_percentage;
+} AVCodecContext;
+
+#if FF_API_CODEC_GET_SET
+/**
+ * Accessors for some AVCodecContext fields. These used to be provided for ABI
+ * compatibility, and do not need to be used anymore.
+ */
+attribute_deprecated
+AVRational av_codec_get_pkt_timebase         (const AVCodecContext *avctx);
+attribute_deprecated
+void       av_codec_set_pkt_timebase         (AVCodecContext *avctx, AVRational val);
+
+attribute_deprecated
+const AVCodecDescriptor *av_codec_get_codec_descriptor(const AVCodecContext *avctx);
+attribute_deprecated
+void                     av_codec_set_codec_descriptor(AVCodecContext *avctx, const AVCodecDescriptor *desc);
+
+attribute_deprecated
+unsigned av_codec_get_codec_properties(const AVCodecContext *avctx);
+
+#if FF_API_LOWRES
+attribute_deprecated
+int  av_codec_get_lowres(const AVCodecContext *avctx);
+attribute_deprecated
+void av_codec_set_lowres(AVCodecContext *avctx, int val);
+#endif
+
+attribute_deprecated
+int  av_codec_get_seek_preroll(const AVCodecContext *avctx);
+attribute_deprecated
+void av_codec_set_seek_preroll(AVCodecContext *avctx, int val);
+
+attribute_deprecated
+uint16_t *av_codec_get_chroma_intra_matrix(const AVCodecContext *avctx);
+attribute_deprecated
+void av_codec_set_chroma_intra_matrix(AVCodecContext *avctx, uint16_t *val);
+#endif
+
+/**
+ * AVProfile.
+ */
+typedef struct AVProfile {
+    int profile;
+    const char *name; ///< short name for the profile
+} AVProfile;
+
+enum {
+    /**
+     * The codec supports this format via the hw_device_ctx interface.
+     *
+     * When selecting this format, AVCodecContext.hw_device_ctx should
+     * have been set to a device of the specified type before calling
+     * avcodec_open2().
+     */
+    AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX = 0x01,
+    /**
+     * The codec supports this format via the hw_frames_ctx interface.
+     *
+     * When selecting this format for a decoder,
+     * AVCodecContext.hw_frames_ctx should be set to a suitable frames
+     * context inside the get_format() callback.  The frames context
+     * must have been created on a device of the specified type.
+     */
+    AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX = 0x02,
+    /**
+     * The codec supports this format by some internal method.
+     *
+     * This format can be selected without any additional configuration -
+     * no device or frames context is required.
+     */
+    AV_CODEC_HW_CONFIG_METHOD_INTERNAL      = 0x04,
+    /**
+     * The codec supports this format by some ad-hoc method.
+     *
+     * Additional settings and/or function calls are required.  See the
+     * codec-specific documentation for details.  (Methods requiring
+     * this sort of configuration are deprecated and others should be
+     * used in preference.)
+     */
+    AV_CODEC_HW_CONFIG_METHOD_AD_HOC        = 0x08,
+};
+
+typedef struct AVCodecHWConfig {
+    /**
+     * A hardware pixel format which the codec can use.
+     */
+    enum AVPixelFormat pix_fmt;
+    /**
+     * Bit set of AV_CODEC_HW_CONFIG_METHOD_* flags, describing the possible
+     * setup methods which can be used with this configuration.
+     */
+    int methods;
+    /**
+     * The device type associated with the configuration.
+     *
+     * Must be set for AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX and
+     * AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX, otherwise unused.
+     */
+    enum AVHWDeviceType device_type;
+} AVCodecHWConfig;
+
+typedef struct AVCodecDefault AVCodecDefault;
+
+struct AVSubtitle;
+
+/**
+ * AVCodec.
+ */
+typedef struct AVCodec {
+    /**
+     * Name of the codec implementation.
+     * The name is globally unique among encoders and among decoders (but an
+     * encoder and a decoder can share the same name).
+     * This is the primary way to find a codec from the user perspective.
+     */
+    const char *name;
+    /**
+     * Descriptive name for the codec, meant to be more human readable than name.
+     * You should use the NULL_IF_CONFIG_SMALL() macro to define it.
+     */
+    const char *long_name;
+    enum AVMediaType type;
+    enum AVCodecID id;
+    /**
+     * Codec capabilities.
+     * see AV_CODEC_CAP_*
+     */
+    int capabilities;
+    const AVRational *supported_framerates; ///< array of supported framerates, or NULL if any, array is terminated by {0,0}
+    const enum AVPixelFormat *pix_fmts;     ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1
+    const int *supported_samplerates;       ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0
+    const enum AVSampleFormat *sample_fmts; ///< array of supported sample formats, or NULL if unknown, array is terminated by -1
+    const uint64_t *channel_layouts;         ///< array of support channel layouts, or NULL if unknown. array is terminated by 0
+    uint8_t max_lowres;                     ///< maximum value for lowres supported by the decoder
+    const AVClass *priv_class;              ///< AVClass for the private context
+    const AVProfile *profiles;              ///< array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
+
+    /**
+     * Group name of the codec implementation.
+     * This is a short symbolic name of the wrapper backing this codec. A
+     * wrapper uses some kind of external implementation for the codec, such
+     * as an external library, or a codec implementation provided by the OS or
+     * the hardware.
+     * If this field is NULL, this is a builtin, libavcodec native codec.
+     * If non-NULL, this will be the suffix in AVCodec.name in most cases
+     * (usually AVCodec.name will be of the form "<codec_name>_<wrapper_name>").
+     */
+    const char *wrapper_name;
+
+    /*****************************************************************
+     * No fields below this line are part of the public API. They
+     * may not be used outside of libavcodec and can be changed and
+     * removed at will.
+     * New public fields should be added right above.
+     *****************************************************************
+     */
+    int priv_data_size;
+    struct AVCodec *next;
+    /**
+     * @name Frame-level threading support functions
+     * @{
+     */
+    /**
+     * If defined, called on thread contexts when they are created.
+     * If the codec allocates writable tables in init(), re-allocate them here.
+     * priv_data will be set to a copy of the original.
+     */
+    int (*init_thread_copy)(AVCodecContext *);
+    /**
+     * Copy necessary context variables from a previous thread context to the current one.
+     * If not defined, the next thread will start automatically; otherwise, the codec
+     * must call ff_thread_finish_setup().
+     *
+     * dst and src will (rarely) point to the same context, in which case memcpy should be skipped.
+     */
+    int (*update_thread_context)(AVCodecContext *dst, const AVCodecContext *src);
+    /** @} */
+
+    /**
+     * Private codec-specific defaults.
+     */
+    const AVCodecDefault *defaults;
+
+    /**
+     * Initialize codec static data, called from avcodec_register().
+     *
+     * This is not intended for time consuming operations as it is
+     * run for every codec regardless of that codec being used.
+     */
+    void (*init_static_data)(struct AVCodec *codec);
+
+    int (*init)(AVCodecContext *);
+    int (*encode_sub)(AVCodecContext *, uint8_t *buf, int buf_size,
+                      const struct AVSubtitle *sub);
+    /**
+     * Encode data to an AVPacket.
+     *
+     * @param      avctx          codec context
+     * @param      avpkt          output AVPacket (may contain a user-provided buffer)
+     * @param[in]  frame          AVFrame containing the raw data to be encoded
+     * @param[out] got_packet_ptr encoder sets to 0 or 1 to indicate that a
+     *                            non-empty packet was returned in avpkt.
+     * @return 0 on success, negative error code on failure
+     */
+    int (*encode2)(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame,
+                   int *got_packet_ptr);
+    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt);
+    int (*close)(AVCodecContext *);
+    /**
+     * Encode API with decoupled packet/frame dataflow. The API is the
+     * same as the avcodec_ prefixed APIs (avcodec_send_frame() etc.), except
+     * that:
+     * - never called if the codec is closed or the wrong type,
+     * - if AV_CODEC_CAP_DELAY is not set, drain frames are never sent,
+     * - only one drain frame is ever passed down,
+     */
+    int (*send_frame)(AVCodecContext *avctx, const AVFrame *frame);
+    int (*receive_packet)(AVCodecContext *avctx, AVPacket *avpkt);
+
+    /**
+     * Decode API with decoupled packet/frame dataflow. This function is called
+     * to get one output frame. It should call ff_decode_get_packet() to obtain
+     * input data.
+     */
+    int (*receive_frame)(AVCodecContext *avctx, AVFrame *frame);
+    /**
+     * Flush buffers.
+     * Will be called when seeking
+     */
+    void (*flush)(AVCodecContext *);
+    /**
+     * Internal codec capabilities.
+     * See FF_CODEC_CAP_* in internal.h
+     */
+    int caps_internal;
+
+    /**
+     * Decoding only, a comma-separated list of bitstream filters to apply to
+     * packets before decoding.
+     */
+    const char *bsfs;
+
+    /**
+     * Array of pointers to hardware configurations supported by the codec,
+     * or NULL if no hardware supported.  The array is terminated by a NULL
+     * pointer.
+     *
+     * The user can only access this field via avcodec_get_hw_config().
+     */
+    const struct AVCodecHWConfigInternal **hw_configs;
+} AVCodec;
+
+#if FF_API_CODEC_GET_SET
+attribute_deprecated
+int av_codec_get_max_lowres(const AVCodec *codec);
+#endif
+
+struct MpegEncContext;
+
+/**
+ * Retrieve supported hardware configurations for a codec.
+ *
+ * Values of index from zero to some maximum return the indexed configuration
+ * descriptor; all other values return NULL.  If the codec does not support
+ * any hardware configurations then it will always return NULL.
+ */
+const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index);
+
+/**
+ * @defgroup lavc_hwaccel AVHWAccel
+ *
+ * @note  Nothing in this structure should be accessed by the user.  At some
+ *        point in future it will not be externally visible at all.
+ *
+ * @{
+ */
+typedef struct AVHWAccel {
+    /**
+     * Name of the hardware accelerated codec.
+     * The name is globally unique among encoders and among decoders (but an
+     * encoder and a decoder can share the same name).
+     */
+    const char *name;
+
+    /**
+     * Type of codec implemented by the hardware accelerator.
+     *
+     * See AVMEDIA_TYPE_xxx
+     */
+    enum AVMediaType type;
+
+    /**
+     * Codec implemented by the hardware accelerator.
+     *
+     * See AV_CODEC_ID_xxx
+     */
+    enum AVCodecID id;
+
+    /**
+     * Supported pixel format.
+     *
+     * Only hardware accelerated formats are supported here.
+     */
+    enum AVPixelFormat pix_fmt;
+
+    /**
+     * Hardware accelerated codec capabilities.
+     * see AV_HWACCEL_CODEC_CAP_*
+     */
+    int capabilities;
+
+    /*****************************************************************
+     * No fields below this line are part of the public API. They
+     * may not be used outside of libavcodec and can be changed and
+     * removed at will.
+     * New public fields should be added right above.
+     *****************************************************************
+     */
+
+    /**
+     * Allocate a custom buffer
+     */
+    int (*alloc_frame)(AVCodecContext *avctx, AVFrame *frame);
+
+    /**
+     * Called at the beginning of each frame or field picture.
+     *
+     * Meaningful frame information (codec specific) is guaranteed to
+     * be parsed at this point. This function is mandatory.
+     *
+     * Note that buf can be NULL along with buf_size set to 0.
+     * Otherwise, this means the whole frame is available at this point.
+     *
+     * @param avctx the codec context
+     * @param buf the frame data buffer base
+     * @param buf_size the size of the frame in bytes
+     * @return zero if successful, a negative value otherwise
+     */
+    int (*start_frame)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
+
+    /**
+     * Callback for parameter data (SPS/PPS/VPS etc).
+     *
+     * Useful for hardware decoders which keep persistent state about the
+     * video parameters, and need to receive any changes to update that state.
+     *
+     * @param avctx the codec context
+     * @param type the nal unit type
+     * @param buf the nal unit data buffer
+     * @param buf_size the size of the nal unit in bytes
+     * @return zero if successful, a negative value otherwise
+     */
+    int (*decode_params)(AVCodecContext *avctx, int type, const uint8_t *buf, uint32_t buf_size);
+
+    /**
+     * Callback for each slice.
+     *
+     * Meaningful slice information (codec specific) is guaranteed to
+     * be parsed at this point. This function is mandatory.
+     * The only exception is XvMC, that works on MB level.
+     *
+     * @param avctx the codec context
+     * @param buf the slice data buffer base
+     * @param buf_size the size of the slice in bytes
+     * @return zero if successful, a negative value otherwise
+     */
+    int (*decode_slice)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
+
+    /**
+     * Called at the end of each frame or field picture.
+     *
+     * The whole picture is parsed at this point and can now be sent
+     * to the hardware accelerator. This function is mandatory.
+     *
+     * @param avctx the codec context
+     * @return zero if successful, a negative value otherwise
+     */
+    int (*end_frame)(AVCodecContext *avctx);
+
+    /**
+     * Size of per-frame hardware accelerator private data.
+     *
+     * Private data is allocated with av_mallocz() before
+     * AVCodecContext.get_buffer() and deallocated after
+     * AVCodecContext.release_buffer().
+     */
+    int frame_priv_data_size;
+
+    /**
+     * Called for every Macroblock in a slice.
+     *
+     * XvMC uses it to replace the ff_mpv_reconstruct_mb().
+     * Instead of decoding to raw picture, MB parameters are
+     * stored in an array provided by the video driver.
+     *
+     * @param s the mpeg context
+     */
+    void (*decode_mb)(struct MpegEncContext *s);
+
+    /**
+     * Initialize the hwaccel private data.
+     *
+     * This will be called from ff_get_format(), after hwaccel and
+     * hwaccel_context are set and the hwaccel private data in AVCodecInternal
+     * is allocated.
+     */
+    int (*init)(AVCodecContext *avctx);
+
+    /**
+     * Uninitialize the hwaccel private data.
+     *
+     * This will be called from get_format() or avcodec_close(), after hwaccel
+     * and hwaccel_context are already uninitialized.
+     */
+    int (*uninit)(AVCodecContext *avctx);
+
+    /**
+     * Size of the private data to allocate in
+     * AVCodecInternal.hwaccel_priv_data.
+     */
+    int priv_data_size;
+
+    /**
+     * Internal hwaccel capabilities.
+     */
+    int caps_internal;
+
+    /**
+     * Fill the given hw_frames context with current codec parameters. Called
+     * from get_format. Refer to avcodec_get_hw_frames_parameters() for
+     * details.
+     *
+     * This CAN be called before AVHWAccel.init is called, and you must assume
+     * that avctx->hwaccel_priv_data is invalid.
+     */
+    int (*frame_params)(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx);
+} AVHWAccel;
+
+/**
+ * HWAccel is experimental and is thus avoided in favor of non experimental
+ * codecs
+ */
+#define AV_HWACCEL_CODEC_CAP_EXPERIMENTAL 0x0200
+
+/**
+ * Hardware acceleration should be used for decoding even if the codec level
+ * used is unknown or higher than the maximum supported level reported by the
+ * hardware driver.
+ *
+ * It's generally a good idea to pass this flag unless you have a specific
+ * reason not to, as hardware tends to under-report supported levels.
+ */
+#define AV_HWACCEL_FLAG_IGNORE_LEVEL (1 << 0)
+
+/**
+ * Hardware acceleration can output YUV pixel formats with a different chroma
+ * sampling than 4:2:0 and/or other than 8 bits per component.
+ */
+#define AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH (1 << 1)
+
+/**
+ * Hardware acceleration should still be attempted for decoding when the
+ * codec profile does not match the reported capabilities of the hardware.
+ *
+ * For example, this can be used to try to decode baseline profile H.264
+ * streams in hardware - it will often succeed, because many streams marked
+ * as baseline profile actually conform to constrained baseline profile.
+ *
+ * @warning If the stream is actually not supported then the behaviour is
+ *          undefined, and may include returning entirely incorrect output
+ *          while indicating success.
+ */
+#define AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH (1 << 2)
+
+/**
+ * @}
+ */
+
+#if FF_API_AVPICTURE
+/**
+ * @defgroup lavc_picture AVPicture
+ *
+ * Functions for working with AVPicture
+ * @{
+ */
+
+/**
+ * Picture data structure.
+ *
+ * Up to four components can be stored into it, the last component is
+ * alpha.
+ * @deprecated use AVFrame or imgutils functions instead
+ */
+typedef struct AVPicture {
+    attribute_deprecated
+    uint8_t *data[AV_NUM_DATA_POINTERS];    ///< pointers to the image data planes
+    attribute_deprecated
+    int linesize[AV_NUM_DATA_POINTERS];     ///< number of bytes per line
+} AVPicture;
+
+/**
+ * @}
+ */
+#endif
+
+enum AVSubtitleType {
+    SUBTITLE_NONE,
+
+    SUBTITLE_BITMAP,                ///< A bitmap, pict will be set
+
+    /**
+     * Plain text, the text field must be set by the decoder and is
+     * authoritative. ass and pict fields may contain approximations.
+     */
+    SUBTITLE_TEXT,
+
+    /**
+     * Formatted text, the ass field must be set by the decoder and is
+     * authoritative. pict and text fields may contain approximations.
+     */
+    SUBTITLE_ASS,
+};
+
+#define AV_SUBTITLE_FLAG_FORCED 0x00000001
+
+typedef struct AVSubtitleRect {
+    int x;         ///< top left corner  of pict, undefined when pict is not set
+    int y;         ///< top left corner  of pict, undefined when pict is not set
+    int w;         ///< width            of pict, undefined when pict is not set
+    int h;         ///< height           of pict, undefined when pict is not set
+    int nb_colors; ///< number of colors in pict, undefined when pict is not set
+
+#if FF_API_AVPICTURE
+    /**
+     * @deprecated unused
+     */
+    attribute_deprecated
+    AVPicture pict;
+#endif
+    /**
+     * data+linesize for the bitmap of this subtitle.
+     * Can be set for text/ass as well once they are rendered.
+     */
+    uint8_t *data[4];
+    int linesize[4];
+
+    enum AVSubtitleType type;
+
+    char *text;                     ///< 0 terminated plain UTF-8 text
+
+    /**
+     * 0 terminated ASS/SSA compatible event line.
+     * The presentation of this is unaffected by the other values in this
+     * struct.
+     */
+    char *ass;
+
+    int flags;
+} AVSubtitleRect;
+
+typedef struct AVSubtitle {
+    uint16_t format; /* 0 = graphics */
+    uint32_t start_display_time; /* relative to packet pts, in ms */
+    uint32_t end_display_time; /* relative to packet pts, in ms */
+    unsigned num_rects;
+    AVSubtitleRect **rects;
+    int64_t pts;    ///< Same as packet pts, in AV_TIME_BASE
+} AVSubtitle;
+
+/**
+ * This struct describes the properties of an encoded stream.
+ *
+ * sizeof(AVCodecParameters) is not a part of the public ABI, this struct must
+ * be allocated with avcodec_parameters_alloc() and freed with
+ * avcodec_parameters_free().
+ */
+typedef struct AVCodecParameters {
+    /**
+     * General type of the encoded data.
+     */
+    enum AVMediaType codec_type;
+    /**
+     * Specific type of the encoded data (the codec used).
+     */
+    enum AVCodecID   codec_id;
+    /**
+     * Additional information about the codec (corresponds to the AVI FOURCC).
+     */
+    uint32_t         codec_tag;
+
+    /**
+     * Extra binary data needed for initializing the decoder, codec-dependent.
+     *
+     * Must be allocated with av_malloc() and will be freed by
+     * avcodec_parameters_free(). The allocated size of extradata must be at
+     * least extradata_size + AV_INPUT_BUFFER_PADDING_SIZE, with the padding
+     * bytes zeroed.
+     */
+    uint8_t *extradata;
+    /**
+     * Size of the extradata content in bytes.
+     */
+    int      extradata_size;
+
+    /**
+     * - video: the pixel format, the value corresponds to enum AVPixelFormat.
+     * - audio: the sample format, the value corresponds to enum AVSampleFormat.
+     */
+    int format;
+
+    /**
+     * The average bitrate of the encoded data (in bits per second).
+     */
+    int64_t bit_rate;
+
+    /**
+     * The number of bits per sample in the codedwords.
+     *
+     * This is basically the bitrate per sample. It is mandatory for a bunch of
+     * formats to actually decode them. It's the number of bits for one sample in
+     * the actual coded bitstream.
+     *
+     * This could be for example 4 for ADPCM
+     * For PCM formats this matches bits_per_raw_sample
+     * Can be 0
+     */
+    int bits_per_coded_sample;
+
+    /**
+     * This is the number of valid bits in each output sample. If the
+     * sample format has more bits, the least significant bits are additional
+     * padding bits, which are always 0. Use right shifts to reduce the sample
+     * to its actual size. For example, audio formats with 24 bit samples will
+     * have bits_per_raw_sample set to 24, and format set to AV_SAMPLE_FMT_S32.
+     * To get the original sample use "(int32_t)sample >> 8"."
+     *
+     * For ADPCM this might be 12 or 16 or similar
+     * Can be 0
+     */
+    int bits_per_raw_sample;
+
+    /**
+     * Codec-specific bitstream restrictions that the stream conforms to.
+     */
+    int profile;
+    int level;
+
+    /**
+     * Video only. The dimensions of the video frame in pixels.
+     */
+    int width;
+    int height;
+
+    /**
+     * Video only. The aspect ratio (width / height) which a single pixel
+     * should have when displayed.
+     *
+     * When the aspect ratio is unknown / undefined, the numerator should be
+     * set to 0 (the denominator may have any value).
+     */
+    AVRational sample_aspect_ratio;
+
+    /**
+     * Video only. The order of the fields in interlaced video.
+     */
+    enum AVFieldOrder                  field_order;
+
+    /**
+     * Video only. Additional colorspace characteristics.
+     */
+    enum AVColorRange                  color_range;
+    enum AVColorPrimaries              color_primaries;
+    enum AVColorTransferCharacteristic color_trc;
+    enum AVColorSpace                  color_space;
+    enum AVChromaLocation              chroma_location;
+
+    /**
+     * Video only. Number of delayed frames.
+     */
+    int video_delay;
+
+    /**
+     * Audio only. The channel layout bitmask. May be 0 if the channel layout is
+     * unknown or unspecified, otherwise the number of bits set must be equal to
+     * the channels field.
+     */
+    uint64_t channel_layout;
+    /**
+     * Audio only. The number of audio channels.
+     */
+    int      channels;
+    /**
+     * Audio only. The number of audio samples per second.
+     */
+    int      sample_rate;
+    /**
+     * Audio only. The number of bytes per coded audio frame, required by some
+     * formats.
+     *
+     * Corresponds to nBlockAlign in WAVEFORMATEX.
+     */
+    int      block_align;
+    /**
+     * Audio only. Audio frame size, if known. Required by some formats to be static.
+     */
+    int      frame_size;
+
+    /**
+     * Audio only. The amount of padding (in samples) inserted by the encoder at
+     * the beginning of the audio. I.e. this number of leading decoded samples
+     * must be discarded by the caller to get the original audio without leading
+     * padding.
+     */
+    int initial_padding;
+    /**
+     * Audio only. The amount of padding (in samples) appended by the encoder to
+     * the end of the audio. I.e. this number of decoded samples must be
+     * discarded by the caller from the end of the stream to get the original
+     * audio without any trailing padding.
+     */
+    int trailing_padding;
+    /**
+     * Audio only. Number of samples to skip after a discontinuity.
+     */
+    int seek_preroll;
+} AVCodecParameters;
+
+/**
+ * Iterate over all registered codecs.
+ *
+ * @param opaque a pointer where libavcodec will store the iteration state. Must
+ *               point to NULL to start the iteration.
+ *
+ * @return the next registered codec or NULL when the iteration is
+ *         finished
+ */
+const AVCodec *av_codec_iterate(void **opaque);
+
+#if FF_API_NEXT
+/**
+ * If c is NULL, returns the first registered codec,
+ * if c is non-NULL, returns the next registered codec after c,
+ * or NULL if c is the last one.
+ */
+attribute_deprecated
+AVCodec *av_codec_next(const AVCodec *c);
+#endif
+
+/**
+ * Return the LIBAVCODEC_VERSION_INT constant.
+ */
+unsigned avcodec_version(void);
+
+/**
+ * Return the libavcodec build-time configuration.
+ */
+const char *avcodec_configuration(void);
+
+/**
+ * Return the libavcodec license.
+ */
+const char *avcodec_license(void);
+
+#if FF_API_NEXT
+/**
+ * Register the codec codec and initialize libavcodec.
+ *
+ * @warning either this function or avcodec_register_all() must be called
+ * before any other libavcodec functions.
+ *
+ * @see avcodec_register_all()
+ */
+attribute_deprecated
+void avcodec_register(AVCodec *codec);
+
+/**
+ * Register all the codecs, parsers and bitstream filters which were enabled at
+ * configuration time. If you do not call this function you can select exactly
+ * which formats you want to support, by using the individual registration
+ * functions.
+ *
+ * @see avcodec_register
+ * @see av_register_codec_parser
+ * @see av_register_bitstream_filter
+ */
+attribute_deprecated
+void avcodec_register_all(void);
+#endif
+
+/**
+ * Allocate an AVCodecContext and set its fields to default values. The
+ * resulting struct should be freed with avcodec_free_context().
+ *
+ * @param codec if non-NULL, allocate private data and initialize defaults
+ *              for the given codec. It is illegal to then call avcodec_open2()
+ *              with a different codec.
+ *              If NULL, then the codec-specific defaults won't be initialized,
+ *              which may result in suboptimal default settings (this is
+ *              important mainly for encoders, e.g. libx264).
+ *
+ * @return An AVCodecContext filled with default values or NULL on failure.
+ */
+AVCodecContext *avcodec_alloc_context3(const AVCodec *codec);
+
+/**
+ * Free the codec context and everything associated with it and write NULL to
+ * the provided pointer.
+ */
+void avcodec_free_context(AVCodecContext **avctx);
+
+#if FF_API_GET_CONTEXT_DEFAULTS
+/**
+ * @deprecated This function should not be used, as closing and opening a codec
+ * context multiple time is not supported. A new codec context should be
+ * allocated for each new use.
+ */
+int avcodec_get_context_defaults3(AVCodecContext *s, const AVCodec *codec);
+#endif
+
+/**
+ * Get the AVClass for AVCodecContext. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avcodec_get_class(void);
+
+#if FF_API_COPY_CONTEXT
+/**
+ * Get the AVClass for AVFrame. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avcodec_get_frame_class(void);
+
+/**
+ * Get the AVClass for AVSubtitleRect. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avcodec_get_subtitle_rect_class(void);
+
+/**
+ * Copy the settings of the source AVCodecContext into the destination
+ * AVCodecContext. The resulting destination codec context will be
+ * unopened, i.e. you are required to call avcodec_open2() before you
+ * can use this AVCodecContext to decode/encode video/audio data.
+ *
+ * @param dest target codec context, should be initialized with
+ *             avcodec_alloc_context3(NULL), but otherwise uninitialized
+ * @param src source codec context
+ * @return AVERROR() on error (e.g. memory allocation error), 0 on success
+ *
+ * @deprecated The semantics of this function are ill-defined and it should not
+ * be used. If you need to transfer the stream parameters from one codec context
+ * to another, use an intermediate AVCodecParameters instance and the
+ * avcodec_parameters_from_context() / avcodec_parameters_to_context()
+ * functions.
+ */
+attribute_deprecated
+int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src);
+#endif
+
+/**
+ * Allocate a new AVCodecParameters and set its fields to default values
+ * (unknown/invalid/0). The returned struct must be freed with
+ * avcodec_parameters_free().
+ */
+AVCodecParameters *avcodec_parameters_alloc(void);
+
+/**
+ * Free an AVCodecParameters instance and everything associated with it and
+ * write NULL to the supplied pointer.
+ */
+void avcodec_parameters_free(AVCodecParameters **par);
+
+/**
+ * Copy the contents of src to dst. Any allocated fields in dst are freed and
+ * replaced with newly allocated duplicates of the corresponding fields in src.
+ *
+ * @return >= 0 on success, a negative AVERROR code on failure.
+ */
+int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src);
+
+/**
+ * Fill the parameters struct based on the values from the supplied codec
+ * context. Any allocated fields in par are freed and replaced with duplicates
+ * of the corresponding fields in codec.
+ *
+ * @return >= 0 on success, a negative AVERROR code on failure
+ */
+int avcodec_parameters_from_context(AVCodecParameters *par,
+                                    const AVCodecContext *codec);
+
+/**
+ * Fill the codec context based on the values from the supplied codec
+ * parameters. Any allocated fields in codec that have a corresponding field in
+ * par are freed and replaced with duplicates of the corresponding field in par.
+ * Fields in codec that do not have a counterpart in par are not touched.
+ *
+ * @return >= 0 on success, a negative AVERROR code on failure.
+ */
+int avcodec_parameters_to_context(AVCodecContext *codec,
+                                  const AVCodecParameters *par);
+
+/**
+ * Initialize the AVCodecContext to use the given AVCodec. Prior to using this
+ * function the context has to be allocated with avcodec_alloc_context3().
+ *
+ * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(),
+ * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for
+ * retrieving a codec.
+ *
+ * @warning This function is not thread safe!
+ *
+ * @note Always call this function before using decoding routines (such as
+ * @ref avcodec_receive_frame()).
+ *
+ * @code
+ * avcodec_register_all();
+ * av_dict_set(&opts, "b", "2.5M", 0);
+ * codec = avcodec_find_decoder(AV_CODEC_ID_H264);
+ * if (!codec)
+ *     exit(1);
+ *
+ * context = avcodec_alloc_context3(codec);
+ *
+ * if (avcodec_open2(context, codec, opts) < 0)
+ *     exit(1);
+ * @endcode
+ *
+ * @param avctx The context to initialize.
+ * @param codec The codec to open this context for. If a non-NULL codec has been
+ *              previously passed to avcodec_alloc_context3() or
+ *              for this context, then this parameter MUST be either NULL or
+ *              equal to the previously passed codec.
+ * @param options A dictionary filled with AVCodecContext and codec-private options.
+ *                On return this object will be filled with options that were not found.
+ *
+ * @return zero on success, a negative value on error
+ * @see avcodec_alloc_context3(), avcodec_find_decoder(), avcodec_find_encoder(),
+ *      av_dict_set(), av_opt_find().
+ */
+int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options);
+
+/**
+ * Close a given AVCodecContext and free all the data associated with it
+ * (but not the AVCodecContext itself).
+ *
+ * Calling this function on an AVCodecContext that hasn't been opened will free
+ * the codec-specific data allocated in avcodec_alloc_context3() with a non-NULL
+ * codec. Subsequent calls will do nothing.
+ *
+ * @note Do not use this function. Use avcodec_free_context() to destroy a
+ * codec context (either open or closed). Opening and closing a codec context
+ * multiple times is not supported anymore -- use multiple codec contexts
+ * instead.
+ */
+int avcodec_close(AVCodecContext *avctx);
+
+/**
+ * Free all allocated data in the given subtitle struct.
+ *
+ * @param sub AVSubtitle to free.
+ */
+void avsubtitle_free(AVSubtitle *sub);
+
+/**
+ * @}
+ */
+
+/**
+ * @addtogroup lavc_packet
+ * @{
+ */
+
+/**
+ * Allocate an AVPacket and set its fields to default values.  The resulting
+ * struct must be freed using av_packet_free().
+ *
+ * @return An AVPacket filled with default values or NULL on failure.
+ *
+ * @note this only allocates the AVPacket itself, not the data buffers. Those
+ * must be allocated through other means such as av_new_packet.
+ *
+ * @see av_new_packet
+ */
+AVPacket *av_packet_alloc(void);
+
+/**
+ * Create a new packet that references the same data as src.
+ *
+ * This is a shortcut for av_packet_alloc()+av_packet_ref().
+ *
+ * @return newly created AVPacket on success, NULL on error.
+ *
+ * @see av_packet_alloc
+ * @see av_packet_ref
+ */
+AVPacket *av_packet_clone(const AVPacket *src);
+
+/**
+ * Free the packet, if the packet is reference counted, it will be
+ * unreferenced first.
+ *
+ * @param pkt packet to be freed. The pointer will be set to NULL.
+ * @note passing NULL is a no-op.
+ */
+void av_packet_free(AVPacket **pkt);
+
+/**
+ * Initialize optional fields of a packet with default values.
+ *
+ * Note, this does not touch the data and size members, which have to be
+ * initialized separately.
+ *
+ * @param pkt packet
+ */
+void av_init_packet(AVPacket *pkt);
+
+/**
+ * Allocate the payload of a packet and initialize its fields with
+ * default values.
+ *
+ * @param pkt packet
+ * @param size wanted payload size
+ * @return 0 if OK, AVERROR_xxx otherwise
+ */
+int av_new_packet(AVPacket *pkt, int size);
+
+/**
+ * Reduce packet size, correctly zeroing padding
+ *
+ * @param pkt packet
+ * @param size new size
+ */
+void av_shrink_packet(AVPacket *pkt, int size);
+
+/**
+ * Increase packet size, correctly zeroing padding
+ *
+ * @param pkt packet
+ * @param grow_by number of bytes by which to increase the size of the packet
+ */
+int av_grow_packet(AVPacket *pkt, int grow_by);
+
+/**
+ * Initialize a reference-counted packet from av_malloc()ed data.
+ *
+ * @param pkt packet to be initialized. This function will set the data, size,
+ *        and buf fields, all others are left untouched.
+ * @param data Data allocated by av_malloc() to be used as packet data. If this
+ *        function returns successfully, the data is owned by the underlying AVBuffer.
+ *        The caller may not access the data through other means.
+ * @param size size of data in bytes, without the padding. I.e. the full buffer
+ *        size is assumed to be size + AV_INPUT_BUFFER_PADDING_SIZE.
+ *
+ * @return 0 on success, a negative AVERROR on error
+ */
+int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size);
+
+#if FF_API_AVPACKET_OLD_API
+/**
+ * @warning This is a hack - the packet memory allocation stuff is broken. The
+ * packet is allocated if it was not really allocated.
+ *
+ * @deprecated Use av_packet_ref or av_packet_make_refcounted
+ */
+attribute_deprecated
+int av_dup_packet(AVPacket *pkt);
+/**
+ * Copy packet, including contents
+ *
+ * @return 0 on success, negative AVERROR on fail
+ *
+ * @deprecated Use av_packet_ref
+ */
+attribute_deprecated
+int av_copy_packet(AVPacket *dst, const AVPacket *src);
+
+/**
+ * Copy packet side data
+ *
+ * @return 0 on success, negative AVERROR on fail
+ *
+ * @deprecated Use av_packet_copy_props
+ */
+attribute_deprecated
+int av_copy_packet_side_data(AVPacket *dst, const AVPacket *src);
+
+/**
+ * Free a packet.
+ *
+ * @deprecated Use av_packet_unref
+ *
+ * @param pkt packet to free
+ */
+attribute_deprecated
+void av_free_packet(AVPacket *pkt);
+#endif
+/**
+ * Allocate new information of a packet.
+ *
+ * @param pkt packet
+ * @param type side information type
+ * @param size side information size
+ * @return pointer to fresh allocated data or NULL otherwise
+ */
+uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+                                 int size);
+
+/**
+ * Wrap an existing array as a packet side data.
+ *
+ * @param pkt packet
+ * @param type side information type
+ * @param data the side data array. It must be allocated with the av_malloc()
+ *             family of functions. The ownership of the data is transferred to
+ *             pkt.
+ * @param size side information size
+ * @return a non-negative number on success, a negative AVERROR code on
+ *         failure. On failure, the packet is unchanged and the data remains
+ *         owned by the caller.
+ */
+int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+                            uint8_t *data, size_t size);
+
+/**
+ * Shrink the already allocated side data buffer
+ *
+ * @param pkt packet
+ * @param type side information type
+ * @param size new side information size
+ * @return 0 on success, < 0 on failure
+ */
+int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+                               int size);
+
+/**
+ * Get side information from packet.
+ *
+ * @param pkt packet
+ * @param type desired side information type
+ * @param size pointer for side information size to store (optional)
+ * @return pointer to data if present or NULL otherwise
+ */
+uint8_t* av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type,
+                                 int *size);
+
+#if FF_API_MERGE_SD_API
+attribute_deprecated
+int av_packet_merge_side_data(AVPacket *pkt);
+
+attribute_deprecated
+int av_packet_split_side_data(AVPacket *pkt);
+#endif
+
+const char *av_packet_side_data_name(enum AVPacketSideDataType type);
+
+/**
+ * Pack a dictionary for use in side_data.
+ *
+ * @param dict The dictionary to pack.
+ * @param size pointer to store the size of the returned data
+ * @return pointer to data if successful, NULL otherwise
+ */
+uint8_t *av_packet_pack_dictionary(AVDictionary *dict, int *size);
+/**
+ * Unpack a dictionary from side_data.
+ *
+ * @param data data from side_data
+ * @param size size of the data
+ * @param dict the metadata storage dictionary
+ * @return 0 on success, < 0 on failure
+ */
+int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict);
+
+
+/**
+ * Convenience function to free all the side data stored.
+ * All the other fields stay untouched.
+ *
+ * @param pkt packet
+ */
+void av_packet_free_side_data(AVPacket *pkt);
+
+/**
+ * Setup a new reference to the data described by a given packet
+ *
+ * If src is reference-counted, setup dst as a new reference to the
+ * buffer in src. Otherwise allocate a new buffer in dst and copy the
+ * data from src into it.
+ *
+ * All the other fields are copied from src.
+ *
+ * @see av_packet_unref
+ *
+ * @param dst Destination packet
+ * @param src Source packet
+ *
+ * @return 0 on success, a negative AVERROR on error.
+ */
+int av_packet_ref(AVPacket *dst, const AVPacket *src);
+
+/**
+ * Wipe the packet.
+ *
+ * Unreference the buffer referenced by the packet and reset the
+ * remaining packet fields to their default values.
+ *
+ * @param pkt The packet to be unreferenced.
+ */
+void av_packet_unref(AVPacket *pkt);
+
+/**
+ * Move every field in src to dst and reset src.
+ *
+ * @see av_packet_unref
+ *
+ * @param src Source packet, will be reset
+ * @param dst Destination packet
+ */
+void av_packet_move_ref(AVPacket *dst, AVPacket *src);
+
+/**
+ * Copy only "properties" fields from src to dst.
+ *
+ * Properties for the purpose of this function are all the fields
+ * beside those related to the packet data (buf, data, size)
+ *
+ * @param dst Destination packet
+ * @param src Source packet
+ *
+ * @return 0 on success AVERROR on failure.
+ */
+int av_packet_copy_props(AVPacket *dst, const AVPacket *src);
+
+/**
+ * Ensure the data described by a given packet is reference counted.
+ *
+ * @note This function does not ensure that the reference will be writable.
+ *       Use av_packet_make_writable instead for that purpose.
+ *
+ * @see av_packet_ref
+ * @see av_packet_make_writable
+ *
+ * @param pkt packet whose data should be made reference counted.
+ *
+ * @return 0 on success, a negative AVERROR on error. On failure, the
+ *         packet is unchanged.
+ */
+int av_packet_make_refcounted(AVPacket *pkt);
+
+/**
+ * Create a writable reference for the data described by a given packet,
+ * avoiding data copy if possible.
+ *
+ * @param pkt Packet whose data should be made writable.
+ *
+ * @return 0 on success, a negative AVERROR on failure. On failure, the
+ *         packet is unchanged.
+ */
+int av_packet_make_writable(AVPacket *pkt);
+
+/**
+ * Convert valid timing fields (timestamps / durations) in a packet from one
+ * timebase to another. Timestamps with unknown values (AV_NOPTS_VALUE) will be
+ * ignored.
+ *
+ * @param pkt packet on which the conversion will be performed
+ * @param tb_src source timebase, in which the timing fields in pkt are
+ *               expressed
+ * @param tb_dst destination timebase, to which the timing fields will be
+ *               converted
+ */
+void av_packet_rescale_ts(AVPacket *pkt, AVRational tb_src, AVRational tb_dst);
+
+/**
+ * @}
+ */
+
+/**
+ * @addtogroup lavc_decoding
+ * @{
+ */
+
+/**
+ * Find a registered decoder with a matching codec ID.
+ *
+ * @param id AVCodecID of the requested decoder
+ * @return A decoder if one was found, NULL otherwise.
+ */
+AVCodec *avcodec_find_decoder(enum AVCodecID id);
+
+/**
+ * Find a registered decoder with the specified name.
+ *
+ * @param name name of the requested decoder
+ * @return A decoder if one was found, NULL otherwise.
+ */
+AVCodec *avcodec_find_decoder_by_name(const char *name);
+
+/**
+ * The default callback for AVCodecContext.get_buffer2(). It is made public so
+ * it can be called by custom get_buffer2() implementations for decoders without
+ * AV_CODEC_CAP_DR1 set.
+ */
+int avcodec_default_get_buffer2(AVCodecContext *s, AVFrame *frame, int flags);
+
+/**
+ * Modify width and height values so that they will result in a memory
+ * buffer that is acceptable for the codec if you do not use any horizontal
+ * padding.
+ *
+ * May only be used if a codec with AV_CODEC_CAP_DR1 has been opened.
+ */
+void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
+
+/**
+ * Modify width and height values so that they will result in a memory
+ * buffer that is acceptable for the codec if you also ensure that all
+ * line sizes are a multiple of the respective linesize_align[i].
+ *
+ * May only be used if a codec with AV_CODEC_CAP_DR1 has been opened.
+ */
+void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
+                               int linesize_align[AV_NUM_DATA_POINTERS]);
+
+/**
+ * Converts AVChromaLocation to swscale x/y chroma position.
+ *
+ * The positions represent the chroma (0,0) position in a coordinates system
+ * with luma (0,0) representing the origin and luma(1,1) representing 256,256
+ *
+ * @param xpos  horizontal chroma sample position
+ * @param ypos  vertical   chroma sample position
+ */
+int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos);
+
+/**
+ * Converts swscale x/y chroma position to AVChromaLocation.
+ *
+ * The positions represent the chroma (0,0) position in a coordinates system
+ * with luma (0,0) representing the origin and luma(1,1) representing 256,256
+ *
+ * @param xpos  horizontal chroma sample position
+ * @param ypos  vertical   chroma sample position
+ */
+enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos);
+
+/**
+ * Decode the audio frame of size avpkt->size from avpkt->data into frame.
+ *
+ * Some decoders may support multiple frames in a single AVPacket. Such
+ * decoders would then just decode the first frame and the return value would be
+ * less than the packet size. In this case, avcodec_decode_audio4 has to be
+ * called again with an AVPacket containing the remaining data in order to
+ * decode the second frame, etc...  Even if no frames are returned, the packet
+ * needs to be fed to the decoder with remaining data until it is completely
+ * consumed or an error occurs.
+ *
+ * Some decoders (those marked with AV_CODEC_CAP_DELAY) have a delay between input
+ * and output. This means that for some packets they will not immediately
+ * produce decoded output and need to be flushed at the end of decoding to get
+ * all the decoded data. Flushing is done by calling this function with packets
+ * with avpkt->data set to NULL and avpkt->size set to 0 until it stops
+ * returning samples. It is safe to flush even those decoders that are not
+ * marked with AV_CODEC_CAP_DELAY, then no samples will be returned.
+ *
+ * @warning The input buffer, avpkt->data must be AV_INPUT_BUFFER_PADDING_SIZE
+ *          larger than the actual read bytes because some optimized bitstream
+ *          readers read 32 or 64 bits at once and could read over the end.
+ *
+ * @note The AVCodecContext MUST have been opened with @ref avcodec_open2()
+ * before packets may be fed to the decoder.
+ *
+ * @param      avctx the codec context
+ * @param[out] frame The AVFrame in which to store decoded audio samples.
+ *                   The decoder will allocate a buffer for the decoded frame by
+ *                   calling the AVCodecContext.get_buffer2() callback.
+ *                   When AVCodecContext.refcounted_frames is set to 1, the frame is
+ *                   reference counted and the returned reference belongs to the
+ *                   caller. The caller must release the frame using av_frame_unref()
+ *                   when the frame is no longer needed. The caller may safely write
+ *                   to the frame if av_frame_is_writable() returns 1.
+ *                   When AVCodecContext.refcounted_frames is set to 0, the returned
+ *                   reference belongs to the decoder and is valid only until the
+ *                   next call to this function or until closing or flushing the
+ *                   decoder. The caller may not write to it.
+ * @param[out] got_frame_ptr Zero if no frame could be decoded, otherwise it is
+ *                           non-zero. Note that this field being set to zero
+ *                           does not mean that an error has occurred. For
+ *                           decoders with AV_CODEC_CAP_DELAY set, no given decode
+ *                           call is guaranteed to produce a frame.
+ * @param[in]  avpkt The input AVPacket containing the input buffer.
+ *                   At least avpkt->data and avpkt->size should be set. Some
+ *                   decoders might also require additional fields to be set.
+ * @return A negative error code is returned if an error occurred during
+ *         decoding, otherwise the number of bytes consumed from the input
+ *         AVPacket is returned.
+ *
+* @deprecated Use avcodec_send_packet() and avcodec_receive_frame().
+ */
+attribute_deprecated
+int avcodec_decode_audio4(AVCodecContext *avctx, AVFrame *frame,
+                          int *got_frame_ptr, const AVPacket *avpkt);
+
+/**
+ * Decode the video frame of size avpkt->size from avpkt->data into picture.
+ * Some decoders may support multiple frames in a single AVPacket, such
+ * decoders would then just decode the first frame.
+ *
+ * @warning The input buffer must be AV_INPUT_BUFFER_PADDING_SIZE larger than
+ * the actual read bytes because some optimized bitstream readers read 32 or 64
+ * bits at once and could read over the end.
+ *
+ * @warning The end of the input buffer buf should be set to 0 to ensure that
+ * no overreading happens for damaged MPEG streams.
+ *
+ * @note Codecs which have the AV_CODEC_CAP_DELAY capability set have a delay
+ * between input and output, these need to be fed with avpkt->data=NULL,
+ * avpkt->size=0 at the end to return the remaining frames.
+ *
+ * @note The AVCodecContext MUST have been opened with @ref avcodec_open2()
+ * before packets may be fed to the decoder.
+ *
+ * @param avctx the codec context
+ * @param[out] picture The AVFrame in which the decoded video frame will be stored.
+ *             Use av_frame_alloc() to get an AVFrame. The codec will
+ *             allocate memory for the actual bitmap by calling the
+ *             AVCodecContext.get_buffer2() callback.
+ *             When AVCodecContext.refcounted_frames is set to 1, the frame is
+ *             reference counted and the returned reference belongs to the
+ *             caller. The caller must release the frame using av_frame_unref()
+ *             when the frame is no longer needed. The caller may safely write
+ *             to the frame if av_frame_is_writable() returns 1.
+ *             When AVCodecContext.refcounted_frames is set to 0, the returned
+ *             reference belongs to the decoder and is valid only until the
+ *             next call to this function or until closing or flushing the
+ *             decoder. The caller may not write to it.
+ *
+ * @param[in] avpkt The input AVPacket containing the input buffer.
+ *            You can create such packet with av_init_packet() and by then setting
+ *            data and size, some decoders might in addition need other fields like
+ *            flags&AV_PKT_FLAG_KEY. All decoders are designed to use the least
+ *            fields possible.
+ * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero.
+ * @return On error a negative value is returned, otherwise the number of bytes
+ * used or zero if no frame could be decompressed.
+ *
+ * @deprecated Use avcodec_send_packet() and avcodec_receive_frame().
+ */
+attribute_deprecated
+int avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
+                         int *got_picture_ptr,
+                         const AVPacket *avpkt);
+
+/**
+ * Decode a subtitle message.
+ * Return a negative value on error, otherwise return the number of bytes used.
+ * If no subtitle could be decompressed, got_sub_ptr is zero.
+ * Otherwise, the subtitle is stored in *sub.
+ * Note that AV_CODEC_CAP_DR1 is not available for subtitle codecs. This is for
+ * simplicity, because the performance difference is expect to be negligible
+ * and reusing a get_buffer written for video codecs would probably perform badly
+ * due to a potentially very different allocation pattern.
+ *
+ * Some decoders (those marked with AV_CODEC_CAP_DELAY) have a delay between input
+ * and output. This means that for some packets they will not immediately
+ * produce decoded output and need to be flushed at the end of decoding to get
+ * all the decoded data. Flushing is done by calling this function with packets
+ * with avpkt->data set to NULL and avpkt->size set to 0 until it stops
+ * returning subtitles. It is safe to flush even those decoders that are not
+ * marked with AV_CODEC_CAP_DELAY, then no subtitles will be returned.
+ *
+ * @note The AVCodecContext MUST have been opened with @ref avcodec_open2()
+ * before packets may be fed to the decoder.
+ *
+ * @param avctx the codec context
+ * @param[out] sub The Preallocated AVSubtitle in which the decoded subtitle will be stored,
+ *                 must be freed with avsubtitle_free if *got_sub_ptr is set.
+ * @param[in,out] got_sub_ptr Zero if no subtitle could be decompressed, otherwise, it is nonzero.
+ * @param[in] avpkt The input AVPacket containing the input buffer.
+ */
+int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
+                            int *got_sub_ptr,
+                            AVPacket *avpkt);
+
+/**
+ * Supply raw packet data as input to a decoder.
+ *
+ * Internally, this call will copy relevant AVCodecContext fields, which can
+ * influence decoding per-packet, and apply them when the packet is actually
+ * decoded. (For example AVCodecContext.skip_frame, which might direct the
+ * decoder to drop the frame contained by the packet sent with this function.)
+ *
+ * @warning The input buffer, avpkt->data must be AV_INPUT_BUFFER_PADDING_SIZE
+ *          larger than the actual read bytes because some optimized bitstream
+ *          readers read 32 or 64 bits at once and could read over the end.
+ *
+ * @warning Do not mix this API with the legacy API (like avcodec_decode_video2())
+ *          on the same AVCodecContext. It will return unexpected results now
+ *          or in future libavcodec versions.
+ *
+ * @note The AVCodecContext MUST have been opened with @ref avcodec_open2()
+ *       before packets may be fed to the decoder.
+ *
+ * @param avctx codec context
+ * @param[in] avpkt The input AVPacket. Usually, this will be a single video
+ *                  frame, or several complete audio frames.
+ *                  Ownership of the packet remains with the caller, and the
+ *                  decoder will not write to the packet. The decoder may create
+ *                  a reference to the packet data (or copy it if the packet is
+ *                  not reference-counted).
+ *                  Unlike with older APIs, the packet is always fully consumed,
+ *                  and if it contains multiple frames (e.g. some audio codecs),
+ *                  will require you to call avcodec_receive_frame() multiple
+ *                  times afterwards before you can send a new packet.
+ *                  It can be NULL (or an AVPacket with data set to NULL and
+ *                  size set to 0); in this case, it is considered a flush
+ *                  packet, which signals the end of the stream. Sending the
+ *                  first flush packet will return success. Subsequent ones are
+ *                  unnecessary and will return AVERROR_EOF. If the decoder
+ *                  still has frames buffered, it will return them after sending
+ *                  a flush packet.
+ *
+ * @return 0 on success, otherwise negative error code:
+ *      AVERROR(EAGAIN):   input is not accepted in the current state - user
+ *                         must read output with avcodec_receive_frame() (once
+ *                         all output is read, the packet should be resent, and
+ *                         the call will not fail with EAGAIN).
+ *      AVERROR_EOF:       the decoder has been flushed, and no new packets can
+ *                         be sent to it (also returned if more than 1 flush
+ *                         packet is sent)
+ *      AVERROR(EINVAL):   codec not opened, it is an encoder, or requires flush
+ *      AVERROR(ENOMEM):   failed to add packet to internal queue, or similar
+ *      other errors: legitimate decoding errors
+ */
+int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt);
+
+/**
+ * Return decoded output data from a decoder.
+ *
+ * @param avctx codec context
+ * @param frame This will be set to a reference-counted video or audio
+ *              frame (depending on the decoder type) allocated by the
+ *              decoder. Note that the function will always call
+ *              av_frame_unref(frame) before doing anything else.
+ *
+ * @return
+ *      0:                 success, a frame was returned
+ *      AVERROR(EAGAIN):   output is not available in this state - user must try
+ *                         to send new input
+ *      AVERROR_EOF:       the decoder has been fully flushed, and there will be
+ *                         no more output frames
+ *      AVERROR(EINVAL):   codec not opened, or it is an encoder
+ *      AVERROR_INPUT_CHANGED:   current decoded frame has changed parameters
+ *                               with respect to first decoded frame. Applicable
+ *                               when flag AV_CODEC_FLAG_DROPCHANGED is set.
+ *      other negative values: legitimate decoding errors
+ */
+int avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame);
+
+/**
+ * Supply a raw video or audio frame to the encoder. Use avcodec_receive_packet()
+ * to retrieve buffered output packets.
+ *
+ * @param avctx     codec context
+ * @param[in] frame AVFrame containing the raw audio or video frame to be encoded.
+ *                  Ownership of the frame remains with the caller, and the
+ *                  encoder will not write to the frame. The encoder may create
+ *                  a reference to the frame data (or copy it if the frame is
+ *                  not reference-counted).
+ *                  It can be NULL, in which case it is considered a flush
+ *                  packet.  This signals the end of the stream. If the encoder
+ *                  still has packets buffered, it will return them after this
+ *                  call. Once flushing mode has been entered, additional flush
+ *                  packets are ignored, and sending frames will return
+ *                  AVERROR_EOF.
+ *
+ *                  For audio:
+ *                  If AV_CODEC_CAP_VARIABLE_FRAME_SIZE is set, then each frame
+ *                  can have any number of samples.
+ *                  If it is not set, frame->nb_samples must be equal to
+ *                  avctx->frame_size for all frames except the last.
+ *                  The final frame may be smaller than avctx->frame_size.
+ * @return 0 on success, otherwise negative error code:
+ *      AVERROR(EAGAIN):   input is not accepted in the current state - user
+ *                         must read output with avcodec_receive_packet() (once
+ *                         all output is read, the packet should be resent, and
+ *                         the call will not fail with EAGAIN).
+ *      AVERROR_EOF:       the encoder has been flushed, and no new frames can
+ *                         be sent to it
+ *      AVERROR(EINVAL):   codec not opened, refcounted_frames not set, it is a
+ *                         decoder, or requires flush
+ *      AVERROR(ENOMEM):   failed to add packet to internal queue, or similar
+ *      other errors: legitimate decoding errors
+ */
+int avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame);
+
+/**
+ * Read encoded data from the encoder.
+ *
+ * @param avctx codec context
+ * @param avpkt This will be set to a reference-counted packet allocated by the
+ *              encoder. Note that the function will always call
+ *              av_frame_unref(frame) before doing anything else.
+ * @return 0 on success, otherwise negative error code:
+ *      AVERROR(EAGAIN):   output is not available in the current state - user
+ *                         must try to send input
+ *      AVERROR_EOF:       the encoder has been fully flushed, and there will be
+ *                         no more output packets
+ *      AVERROR(EINVAL):   codec not opened, or it is an encoder
+ *      other errors: legitimate decoding errors
+ */
+int avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt);
+
+/**
+ * Create and return a AVHWFramesContext with values adequate for hardware
+ * decoding. This is meant to get called from the get_format callback, and is
+ * a helper for preparing a AVHWFramesContext for AVCodecContext.hw_frames_ctx.
+ * This API is for decoding with certain hardware acceleration modes/APIs only.
+ *
+ * The returned AVHWFramesContext is not initialized. The caller must do this
+ * with av_hwframe_ctx_init().
+ *
+ * Calling this function is not a requirement, but makes it simpler to avoid
+ * codec or hardware API specific details when manually allocating frames.
+ *
+ * Alternatively to this, an API user can set AVCodecContext.hw_device_ctx,
+ * which sets up AVCodecContext.hw_frames_ctx fully automatically, and makes
+ * it unnecessary to call this function or having to care about
+ * AVHWFramesContext initialization at all.
+ *
+ * There are a number of requirements for calling this function:
+ *
+ * - It must be called from get_format with the same avctx parameter that was
+ *   passed to get_format. Calling it outside of get_format is not allowed, and
+ *   can trigger undefined behavior.
+ * - The function is not always supported (see description of return values).
+ *   Even if this function returns successfully, hwaccel initialization could
+ *   fail later. (The degree to which implementations check whether the stream
+ *   is actually supported varies. Some do this check only after the user's
+ *   get_format callback returns.)
+ * - The hw_pix_fmt must be one of the choices suggested by get_format. If the
+ *   user decides to use a AVHWFramesContext prepared with this API function,
+ *   the user must return the same hw_pix_fmt from get_format.
+ * - The device_ref passed to this function must support the given hw_pix_fmt.
+ * - After calling this API function, it is the user's responsibility to
+ *   initialize the AVHWFramesContext (returned by the out_frames_ref parameter),
+ *   and to set AVCodecContext.hw_frames_ctx to it. If done, this must be done
+ *   before returning from get_format (this is implied by the normal
+ *   AVCodecContext.hw_frames_ctx API rules).
+ * - The AVHWFramesContext parameters may change every time time get_format is
+ *   called. Also, AVCodecContext.hw_frames_ctx is reset before get_format. So
+ *   you are inherently required to go through this process again on every
+ *   get_format call.
+ * - It is perfectly possible to call this function without actually using
+ *   the resulting AVHWFramesContext. One use-case might be trying to reuse a
+ *   previously initialized AVHWFramesContext, and calling this API function
+ *   only to test whether the required frame parameters have changed.
+ * - Fields that use dynamically allocated values of any kind must not be set
+ *   by the user unless setting them is explicitly allowed by the documentation.
+ *   If the user sets AVHWFramesContext.free and AVHWFramesContext.user_opaque,
+ *   the new free callback must call the potentially set previous free callback.
+ *   This API call may set any dynamically allocated fields, including the free
+ *   callback.
+ *
+ * The function will set at least the following fields on AVHWFramesContext
+ * (potentially more, depending on hwaccel API):
+ *
+ * - All fields set by av_hwframe_ctx_alloc().
+ * - Set the format field to hw_pix_fmt.
+ * - Set the sw_format field to the most suited and most versatile format. (An
+ *   implication is that this will prefer generic formats over opaque formats
+ *   with arbitrary restrictions, if possible.)
+ * - Set the width/height fields to the coded frame size, rounded up to the
+ *   API-specific minimum alignment.
+ * - Only _if_ the hwaccel requires a pre-allocated pool: set the initial_pool_size
+ *   field to the number of maximum reference surfaces possible with the codec,
+ *   plus 1 surface for the user to work (meaning the user can safely reference
+ *   at most 1 decoded surface at a time), plus additional buffering introduced
+ *   by frame threading. If the hwaccel does not require pre-allocation, the
+ *   field is left to 0, and the decoder will allocate new surfaces on demand
+ *   during decoding.
+ * - Possibly AVHWFramesContext.hwctx fields, depending on the underlying
+ *   hardware API.
+ *
+ * Essentially, out_frames_ref returns the same as av_hwframe_ctx_alloc(), but
+ * with basic frame parameters set.
+ *
+ * The function is stateless, and does not change the AVCodecContext or the
+ * device_ref AVHWDeviceContext.
+ *
+ * @param avctx The context which is currently calling get_format, and which
+ *              implicitly contains all state needed for filling the returned
+ *              AVHWFramesContext properly.
+ * @param device_ref A reference to the AVHWDeviceContext describing the device
+ *                   which will be used by the hardware decoder.
+ * @param hw_pix_fmt The hwaccel format you are going to return from get_format.
+ * @param out_frames_ref On success, set to a reference to an _uninitialized_
+ *                       AVHWFramesContext, created from the given device_ref.
+ *                       Fields will be set to values required for decoding.
+ *                       Not changed if an error is returned.
+ * @return zero on success, a negative value on error. The following error codes
+ *         have special semantics:
+ *      AVERROR(ENOENT): the decoder does not support this functionality. Setup
+ *                       is always manual, or it is a decoder which does not
+ *                       support setting AVCodecContext.hw_frames_ctx at all,
+ *                       or it is a software format.
+ *      AVERROR(EINVAL): it is known that hardware decoding is not supported for
+ *                       this configuration, or the device_ref is not supported
+ *                       for the hwaccel referenced by hw_pix_fmt.
+ */
+int avcodec_get_hw_frames_parameters(AVCodecContext *avctx,
+                                     AVBufferRef *device_ref,
+                                     enum AVPixelFormat hw_pix_fmt,
+                                     AVBufferRef **out_frames_ref);
+
+
+
+/**
+ * @defgroup lavc_parsing Frame parsing
+ * @{
+ */
+
+enum AVPictureStructure {
+    AV_PICTURE_STRUCTURE_UNKNOWN,      //< unknown
+    AV_PICTURE_STRUCTURE_TOP_FIELD,    //< coded as top field
+    AV_PICTURE_STRUCTURE_BOTTOM_FIELD, //< coded as bottom field
+    AV_PICTURE_STRUCTURE_FRAME,        //< coded as frame
+};
+
+typedef struct AVCodecParserContext {
+    void *priv_data;
+    struct AVCodecParser *parser;
+    int64_t frame_offset; /* offset of the current frame */
+    int64_t cur_offset; /* current offset
+                           (incremented by each av_parser_parse()) */
+    int64_t next_frame_offset; /* offset of the next frame */
+    /* video info */
+    int pict_type; /* XXX: Put it back in AVCodecContext. */
+    /**
+     * This field is used for proper frame duration computation in lavf.
+     * It signals, how much longer the frame duration of the current frame
+     * is compared to normal frame duration.
+     *
+     * frame_duration = (1 + repeat_pict) * time_base
+     *
+     * It is used by codecs like H.264 to display telecined material.
+     */
+    int repeat_pict; /* XXX: Put it back in AVCodecContext. */
+    int64_t pts;     /* pts of the current frame */
+    int64_t dts;     /* dts of the current frame */
+
+    /* private data */
+    int64_t last_pts;
+    int64_t last_dts;
+    int fetch_timestamp;
+
+#define AV_PARSER_PTS_NB 4
+    int cur_frame_start_index;
+    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
+    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
+    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
+
+    int flags;
+#define PARSER_FLAG_COMPLETE_FRAMES           0x0001
+#define PARSER_FLAG_ONCE                      0x0002
+/// Set if the parser has a valid file offset
+#define PARSER_FLAG_FETCHED_OFFSET            0x0004
+#define PARSER_FLAG_USE_CODEC_TS              0x1000
+
+    int64_t offset;      ///< byte offset from starting packet start
+    int64_t cur_frame_end[AV_PARSER_PTS_NB];
+
+    /**
+     * Set by parser to 1 for key frames and 0 for non-key frames.
+     * It is initialized to -1, so if the parser doesn't set this flag,
+     * old-style fallback using AV_PICTURE_TYPE_I picture type as key frames
+     * will be used.
+     */
+    int key_frame;
+
+#if FF_API_CONVERGENCE_DURATION
+    /**
+     * @deprecated unused
+     */
+    attribute_deprecated
+    int64_t convergence_duration;
+#endif
+
+    // Timestamp generation support:
+    /**
+     * Synchronization point for start of timestamp generation.
+     *
+     * Set to >0 for sync point, 0 for no sync point and <0 for undefined
+     * (default).
+     *
+     * For example, this corresponds to presence of H.264 buffering period
+     * SEI message.
+     */
+    int dts_sync_point;
+
+    /**
+     * Offset of the current timestamp against last timestamp sync point in
+     * units of AVCodecContext.time_base.
+     *
+     * Set to INT_MIN when dts_sync_point unused. Otherwise, it must
+     * contain a valid timestamp offset.
+     *
+     * Note that the timestamp of sync point has usually a nonzero
+     * dts_ref_dts_delta, which refers to the previous sync point. Offset of
+     * the next frame after timestamp sync point will be usually 1.
+     *
+     * For example, this corresponds to H.264 cpb_removal_delay.
+     */
+    int dts_ref_dts_delta;
+
+    /**
+     * Presentation delay of current frame in units of AVCodecContext.time_base.
+     *
+     * Set to INT_MIN when dts_sync_point unused. Otherwise, it must
+     * contain valid non-negative timestamp delta (presentation time of a frame
+     * must not lie in the past).
+     *
+     * This delay represents the difference between decoding and presentation
+     * time of the frame.
+     *
+     * For example, this corresponds to H.264 dpb_output_delay.
+     */
+    int pts_dts_delta;
+
+    /**
+     * Position of the packet in file.
+     *
+     * Analogous to cur_frame_pts/dts
+     */
+    int64_t cur_frame_pos[AV_PARSER_PTS_NB];
+
+    /**
+     * Byte position of currently parsed frame in stream.
+     */
+    int64_t pos;
+
+    /**
+     * Previous frame byte position.
+     */
+    int64_t last_pos;
+
+    /**
+     * Duration of the current frame.
+     * For audio, this is in units of 1 / AVCodecContext.sample_rate.
+     * For all other types, this is in units of AVCodecContext.time_base.
+     */
+    int duration;
+
+    enum AVFieldOrder field_order;
+
+    /**
+     * Indicate whether a picture is coded as a frame, top field or bottom field.
+     *
+     * For example, H.264 field_pic_flag equal to 0 corresponds to
+     * AV_PICTURE_STRUCTURE_FRAME. An H.264 picture with field_pic_flag
+     * equal to 1 and bottom_field_flag equal to 0 corresponds to
+     * AV_PICTURE_STRUCTURE_TOP_FIELD.
+     */
+    enum AVPictureStructure picture_structure;
+
+    /**
+     * Picture number incremented in presentation or output order.
+     * This field may be reinitialized at the first picture of a new sequence.
+     *
+     * For example, this corresponds to H.264 PicOrderCnt.
+     */
+    int output_picture_number;
+
+    /**
+     * Dimensions of the decoded video intended for presentation.
+     */
+    int width;
+    int height;
+
+    /**
+     * Dimensions of the coded video.
+     */
+    int coded_width;
+    int coded_height;
+
+    /**
+     * The format of the coded data, corresponds to enum AVPixelFormat for video
+     * and for enum AVSampleFormat for audio.
+     *
+     * Note that a decoder can have considerable freedom in how exactly it
+     * decodes the data, so the format reported here might be different from the
+     * one returned by a decoder.
+     */
+    int format;
+} AVCodecParserContext;
+
+typedef struct AVCodecParser {
+    int codec_ids[5]; /* several codec IDs are permitted */
+    int priv_data_size;
+    int (*parser_init)(AVCodecParserContext *s);
+    /* This callback never returns an error, a negative value means that
+     * the frame start was in a previous packet. */
+    int (*parser_parse)(AVCodecParserContext *s,
+                        AVCodecContext *avctx,
+                        const uint8_t **poutbuf, int *poutbuf_size,
+                        const uint8_t *buf, int buf_size);
+    void (*parser_close)(AVCodecParserContext *s);
+    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
+    struct AVCodecParser *next;
+} AVCodecParser;
+
+/**
+ * Iterate over all registered codec parsers.
+ *
+ * @param opaque a pointer where libavcodec will store the iteration state. Must
+ *               point to NULL to start the iteration.
+ *
+ * @return the next registered codec parser or NULL when the iteration is
+ *         finished
+ */
+const AVCodecParser *av_parser_iterate(void **opaque);
+
+attribute_deprecated
+AVCodecParser *av_parser_next(const AVCodecParser *c);
+
+attribute_deprecated
+void av_register_codec_parser(AVCodecParser *parser);
+AVCodecParserContext *av_parser_init(int codec_id);
+
+/**
+ * Parse a packet.
+ *
+ * @param s             parser context.
+ * @param avctx         codec context.
+ * @param poutbuf       set to pointer to parsed buffer or NULL if not yet finished.
+ * @param poutbuf_size  set to size of parsed buffer or zero if not yet finished.
+ * @param buf           input buffer.
+ * @param buf_size      buffer size in bytes without the padding. I.e. the full buffer
+                        size is assumed to be buf_size + AV_INPUT_BUFFER_PADDING_SIZE.
+                        To signal EOF, this should be 0 (so that the last frame
+                        can be output).
+ * @param pts           input presentation timestamp.
+ * @param dts           input decoding timestamp.
+ * @param pos           input byte position in stream.
+ * @return the number of bytes of the input bitstream used.
+ *
+ * Example:
+ * @code
+ *   while(in_len){
+ *       len = av_parser_parse2(myparser, AVCodecContext, &data, &size,
+ *                                        in_data, in_len,
+ *                                        pts, dts, pos);
+ *       in_data += len;
+ *       in_len  -= len;
+ *
+ *       if(size)
+ *          decode_frame(data, size);
+ *   }
+ * @endcode
+ */
+int av_parser_parse2(AVCodecParserContext *s,
+                     AVCodecContext *avctx,
+                     uint8_t **poutbuf, int *poutbuf_size,
+                     const uint8_t *buf, int buf_size,
+                     int64_t pts, int64_t dts,
+                     int64_t pos);
+
+/**
+ * @return 0 if the output buffer is a subset of the input, 1 if it is allocated and must be freed
+ * @deprecated use AVBitStreamFilter
+ */
+int av_parser_change(AVCodecParserContext *s,
+                     AVCodecContext *avctx,
+                     uint8_t **poutbuf, int *poutbuf_size,
+                     const uint8_t *buf, int buf_size, int keyframe);
+void av_parser_close(AVCodecParserContext *s);
+
+/**
+ * @}
+ * @}
+ */
+
+/**
+ * @addtogroup lavc_encoding
+ * @{
+ */
+
+/**
+ * Find a registered encoder with a matching codec ID.
+ *
+ * @param id AVCodecID of the requested encoder
+ * @return An encoder if one was found, NULL otherwise.
+ */
+AVCodec *avcodec_find_encoder(enum AVCodecID id);
+
+/**
+ * Find a registered encoder with the specified name.
+ *
+ * @param name name of the requested encoder
+ * @return An encoder if one was found, NULL otherwise.
+ */
+AVCodec *avcodec_find_encoder_by_name(const char *name);
+
+/**
+ * Encode a frame of audio.
+ *
+ * Takes input samples from frame and writes the next output packet, if
+ * available, to avpkt. The output packet does not necessarily contain data for
+ * the most recent frame, as encoders can delay, split, and combine input frames
+ * internally as needed.
+ *
+ * @param avctx     codec context
+ * @param avpkt     output AVPacket.
+ *                  The user can supply an output buffer by setting
+ *                  avpkt->data and avpkt->size prior to calling the
+ *                  function, but if the size of the user-provided data is not
+ *                  large enough, encoding will fail. If avpkt->data and
+ *                  avpkt->size are set, avpkt->destruct must also be set. All
+ *                  other AVPacket fields will be reset by the encoder using
+ *                  av_init_packet(). If avpkt->data is NULL, the encoder will
+ *                  allocate it. The encoder will set avpkt->size to the size
+ *                  of the output packet.
+ *
+ *                  If this function fails or produces no output, avpkt will be
+ *                  freed using av_packet_unref().
+ * @param[in] frame AVFrame containing the raw audio data to be encoded.
+ *                  May be NULL when flushing an encoder that has the
+ *                  AV_CODEC_CAP_DELAY capability set.
+ *                  If AV_CODEC_CAP_VARIABLE_FRAME_SIZE is set, then each frame
+ *                  can have any number of samples.
+ *                  If it is not set, frame->nb_samples must be equal to
+ *                  avctx->frame_size for all frames except the last.
+ *                  The final frame may be smaller than avctx->frame_size.
+ * @param[out] got_packet_ptr This field is set to 1 by libavcodec if the
+ *                            output packet is non-empty, and to 0 if it is
+ *                            empty. If the function returns an error, the
+ *                            packet can be assumed to be invalid, and the
+ *                            value of got_packet_ptr is undefined and should
+ *                            not be used.
+ * @return          0 on success, negative error code on failure
+ *
+ * @deprecated use avcodec_send_frame()/avcodec_receive_packet() instead
+ */
+attribute_deprecated
+int avcodec_encode_audio2(AVCodecContext *avctx, AVPacket *avpkt,
+                          const AVFrame *frame, int *got_packet_ptr);
+
+/**
+ * Encode a frame of video.
+ *
+ * Takes input raw video data from frame and writes the next output packet, if
+ * available, to avpkt. The output packet does not necessarily contain data for
+ * the most recent frame, as encoders can delay and reorder input frames
+ * internally as needed.
+ *
+ * @param avctx     codec context
+ * @param avpkt     output AVPacket.
+ *                  The user can supply an output buffer by setting
+ *                  avpkt->data and avpkt->size prior to calling the
+ *                  function, but if the size of the user-provided data is not
+ *                  large enough, encoding will fail. All other AVPacket fields
+ *                  will be reset by the encoder using av_init_packet(). If
+ *                  avpkt->data is NULL, the encoder will allocate it.
+ *                  The encoder will set avpkt->size to the size of the
+ *                  output packet. The returned data (if any) belongs to the
+ *                  caller, he is responsible for freeing it.
+ *
+ *                  If this function fails or produces no output, avpkt will be
+ *                  freed using av_packet_unref().
+ * @param[in] frame AVFrame containing the raw video data to be encoded.
+ *                  May be NULL when flushing an encoder that has the
+ *                  AV_CODEC_CAP_DELAY capability set.
+ * @param[out] got_packet_ptr This field is set to 1 by libavcodec if the
+ *                            output packet is non-empty, and to 0 if it is
+ *                            empty. If the function returns an error, the
+ *                            packet can be assumed to be invalid, and the
+ *                            value of got_packet_ptr is undefined and should
+ *                            not be used.
+ * @return          0 on success, negative error code on failure
+ *
+ * @deprecated use avcodec_send_frame()/avcodec_receive_packet() instead
+ */
+attribute_deprecated
+int avcodec_encode_video2(AVCodecContext *avctx, AVPacket *avpkt,
+                          const AVFrame *frame, int *got_packet_ptr);
+
+int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
+                            const AVSubtitle *sub);
+
+
+/**
+ * @}
+ */
+
+#if FF_API_AVPICTURE
+/**
+ * @addtogroup lavc_picture
+ * @{
+ */
+
+/**
+ * @deprecated unused
+ */
+attribute_deprecated
+int avpicture_alloc(AVPicture *picture, enum AVPixelFormat pix_fmt, int width, int height);
+
+/**
+ * @deprecated unused
+ */
+attribute_deprecated
+void avpicture_free(AVPicture *picture);
+
+/**
+ * @deprecated use av_image_fill_arrays() instead.
+ */
+attribute_deprecated
+int avpicture_fill(AVPicture *picture, const uint8_t *ptr,
+                   enum AVPixelFormat pix_fmt, int width, int height);
+
+/**
+ * @deprecated use av_image_copy_to_buffer() instead.
+ */
+attribute_deprecated
+int avpicture_layout(const AVPicture *src, enum AVPixelFormat pix_fmt,
+                     int width, int height,
+                     unsigned char *dest, int dest_size);
+
+/**
+ * @deprecated use av_image_get_buffer_size() instead.
+ */
+attribute_deprecated
+int avpicture_get_size(enum AVPixelFormat pix_fmt, int width, int height);
+
+/**
+ * @deprecated av_image_copy() instead.
+ */
+attribute_deprecated
+void av_picture_copy(AVPicture *dst, const AVPicture *src,
+                     enum AVPixelFormat pix_fmt, int width, int height);
+
+/**
+ * @deprecated unused
+ */
+attribute_deprecated
+int av_picture_crop(AVPicture *dst, const AVPicture *src,
+                    enum AVPixelFormat pix_fmt, int top_band, int left_band);
+
+/**
+ * @deprecated unused
+ */
+attribute_deprecated
+int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width, enum AVPixelFormat pix_fmt,
+            int padtop, int padbottom, int padleft, int padright, int *color);
+
+/**
+ * @}
+ */
+#endif
+
+/**
+ * @defgroup lavc_misc Utility functions
+ * @ingroup libavc
+ *
+ * Miscellaneous utility functions related to both encoding and decoding
+ * (or neither).
+ * @{
+ */
+
+/**
+ * @defgroup lavc_misc_pixfmt Pixel formats
+ *
+ * Functions for working with pixel formats.
+ * @{
+ */
+
+#if FF_API_GETCHROMA
+/**
+ * @deprecated Use av_pix_fmt_get_chroma_sub_sample
+ */
+
+attribute_deprecated
+void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift);
+#endif
+
+/**
+ * Return a value representing the fourCC code associated to the
+ * pixel format pix_fmt, or 0 if no associated fourCC code can be
+ * found.
+ */
+unsigned int avcodec_pix_fmt_to_codec_tag(enum AVPixelFormat pix_fmt);
+
+/**
+ * @deprecated see av_get_pix_fmt_loss()
+ */
+int avcodec_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt, enum AVPixelFormat src_pix_fmt,
+                             int has_alpha);
+
+/**
+ * Find the best pixel format to convert to given a certain source pixel
+ * format.  When converting from one pixel format to another, information loss
+ * may occur.  For example, when converting from RGB24 to GRAY, the color
+ * information will be lost. Similarly, other losses occur when converting from
+ * some formats to other formats. avcodec_find_best_pix_fmt_of_2() searches which of
+ * the given pixel formats should be used to suffer the least amount of loss.
+ * The pixel formats from which it chooses one, are determined by the
+ * pix_fmt_list parameter.
+ *
+ *
+ * @param[in] pix_fmt_list AV_PIX_FMT_NONE terminated array of pixel formats to choose from
+ * @param[in] src_pix_fmt source pixel format
+ * @param[in] has_alpha Whether the source pixel format alpha channel is used.
+ * @param[out] loss_ptr Combination of flags informing you what kind of losses will occur.
+ * @return The best pixel format to convert to or -1 if none was found.
+ */
+enum AVPixelFormat avcodec_find_best_pix_fmt_of_list(const enum AVPixelFormat *pix_fmt_list,
+                                            enum AVPixelFormat src_pix_fmt,
+                                            int has_alpha, int *loss_ptr);
+
+/**
+ * @deprecated see av_find_best_pix_fmt_of_2()
+ */
+enum AVPixelFormat avcodec_find_best_pix_fmt_of_2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
+                                            enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr);
+
+attribute_deprecated
+enum AVPixelFormat avcodec_find_best_pix_fmt2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
+                                            enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr);
+
+enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat * fmt);
+
+/**
+ * @}
+ */
+
+#if FF_API_TAG_STRING
+/**
+ * Put a string representing the codec tag codec_tag in buf.
+ *
+ * @param buf       buffer to place codec tag in
+ * @param buf_size size in bytes of buf
+ * @param codec_tag codec tag to assign
+ * @return the length of the string that would have been generated if
+ * enough space had been available, excluding the trailing null
+ *
+ * @deprecated see av_fourcc_make_string() and av_fourcc2str().
+ */
+attribute_deprecated
+size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag);
+#endif
+
+void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
+
+/**
+ * Return a name for the specified profile, if available.
+ *
+ * @param codec the codec that is searched for the given profile
+ * @param profile the profile value for which a name is requested
+ * @return A name for the profile if found, NULL otherwise.
+ */
+const char *av_get_profile_name(const AVCodec *codec, int profile);
+
+/**
+ * Return a name for the specified profile, if available.
+ *
+ * @param codec_id the ID of the codec to which the requested profile belongs
+ * @param profile the profile value for which a name is requested
+ * @return A name for the profile if found, NULL otherwise.
+ *
+ * @note unlike av_get_profile_name(), which searches a list of profiles
+ *       supported by a specific decoder or encoder implementation, this
+ *       function searches the list of profiles from the AVCodecDescriptor
+ */
+const char *avcodec_profile_name(enum AVCodecID codec_id, int profile);
+
+int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size);
+int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int, int),void *arg, int *ret, int count);
+//FIXME func typedef
+
+/**
+ * Fill AVFrame audio data and linesize pointers.
+ *
+ * The buffer buf must be a preallocated buffer with a size big enough
+ * to contain the specified samples amount. The filled AVFrame data
+ * pointers will point to this buffer.
+ *
+ * AVFrame extended_data channel pointers are allocated if necessary for
+ * planar audio.
+ *
+ * @param frame       the AVFrame
+ *                    frame->nb_samples must be set prior to calling the
+ *                    function. This function fills in frame->data,
+ *                    frame->extended_data, frame->linesize[0].
+ * @param nb_channels channel count
+ * @param sample_fmt  sample format
+ * @param buf         buffer to use for frame data
+ * @param buf_size    size of buffer
+ * @param align       plane size sample alignment (0 = default)
+ * @return            >=0 on success, negative error code on failure
+ * @todo return the size in bytes required to store the samples in
+ * case of success, at the next libavutil bump
+ */
+int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
+                             enum AVSampleFormat sample_fmt, const uint8_t *buf,
+                             int buf_size, int align);
+
+/**
+ * Reset the internal decoder state / flush internal buffers. Should be called
+ * e.g. when seeking or when switching to a different stream.
+ *
+ * @note when refcounted frames are not used (i.e. avctx->refcounted_frames is 0),
+ * this invalidates the frames previously returned from the decoder. When
+ * refcounted frames are used, the decoder just releases any references it might
+ * keep internally, but the caller's reference remains valid.
+ */
+void avcodec_flush_buffers(AVCodecContext *avctx);
+
+/**
+ * Return codec bits per sample.
+ *
+ * @param[in] codec_id the codec
+ * @return Number of bits per sample or zero if unknown for the given codec.
+ */
+int av_get_bits_per_sample(enum AVCodecID codec_id);
+
+/**
+ * Return the PCM codec associated with a sample format.
+ * @param be  endianness, 0 for little, 1 for big,
+ *            -1 (or anything else) for native
+ * @return  AV_CODEC_ID_PCM_* or AV_CODEC_ID_NONE
+ */
+enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be);
+
+/**
+ * Return codec bits per sample.
+ * Only return non-zero if the bits per sample is exactly correct, not an
+ * approximation.
+ *
+ * @param[in] codec_id the codec
+ * @return Number of bits per sample or zero if unknown for the given codec.
+ */
+int av_get_exact_bits_per_sample(enum AVCodecID codec_id);
+
+/**
+ * Return audio frame duration.
+ *
+ * @param avctx        codec context
+ * @param frame_bytes  size of the frame, or 0 if unknown
+ * @return             frame duration, in samples, if known. 0 if not able to
+ *                     determine.
+ */
+int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes);
+
+/**
+ * This function is the same as av_get_audio_frame_duration(), except it works
+ * with AVCodecParameters instead of an AVCodecContext.
+ */
+int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes);
+
+#if FF_API_OLD_BSF
+typedef struct AVBitStreamFilterContext {
+    void *priv_data;
+    const struct AVBitStreamFilter *filter;
+    AVCodecParserContext *parser;
+    struct AVBitStreamFilterContext *next;
+    /**
+     * Internal default arguments, used if NULL is passed to av_bitstream_filter_filter().
+     * Not for access by library users.
+     */
+    char *args;
+} AVBitStreamFilterContext;
+#endif
+
+typedef struct AVBSFInternal AVBSFInternal;
+
+/**
+ * The bitstream filter state.
+ *
+ * This struct must be allocated with av_bsf_alloc() and freed with
+ * av_bsf_free().
+ *
+ * The fields in the struct will only be changed (by the caller or by the
+ * filter) as described in their documentation, and are to be considered
+ * immutable otherwise.
+ */
+typedef struct AVBSFContext {
+    /**
+     * A class for logging and AVOptions
+     */
+    const AVClass *av_class;
+
+    /**
+     * The bitstream filter this context is an instance of.
+     */
+    const struct AVBitStreamFilter *filter;
+
+    /**
+     * Opaque libavcodec internal data. Must not be touched by the caller in any
+     * way.
+     */
+    AVBSFInternal *internal;
+
+    /**
+     * Opaque filter-specific private data. If filter->priv_class is non-NULL,
+     * this is an AVOptions-enabled struct.
+     */
+    void *priv_data;
+
+    /**
+     * Parameters of the input stream. This field is allocated in
+     * av_bsf_alloc(), it needs to be filled by the caller before
+     * av_bsf_init().
+     */
+    AVCodecParameters *par_in;
+
+    /**
+     * Parameters of the output stream. This field is allocated in
+     * av_bsf_alloc(), it is set by the filter in av_bsf_init().
+     */
+    AVCodecParameters *par_out;
+
+    /**
+     * The timebase used for the timestamps of the input packets. Set by the
+     * caller before av_bsf_init().
+     */
+    AVRational time_base_in;
+
+    /**
+     * The timebase used for the timestamps of the output packets. Set by the
+     * filter in av_bsf_init().
+     */
+    AVRational time_base_out;
+} AVBSFContext;
+
+typedef struct AVBitStreamFilter {
+    const char *name;
+
+    /**
+     * A list of codec ids supported by the filter, terminated by
+     * AV_CODEC_ID_NONE.
+     * May be NULL, in that case the bitstream filter works with any codec id.
+     */
+    const enum AVCodecID *codec_ids;
+
+    /**
+     * A class for the private data, used to declare bitstream filter private
+     * AVOptions. This field is NULL for bitstream filters that do not declare
+     * any options.
+     *
+     * If this field is non-NULL, the first member of the filter private data
+     * must be a pointer to AVClass, which will be set by libavcodec generic
+     * code to this class.
+     */
+    const AVClass *priv_class;
+
+    /*****************************************************************
+     * No fields below this line are part of the public API. They
+     * may not be used outside of libavcodec and can be changed and
+     * removed at will.
+     * New public fields should be added right above.
+     *****************************************************************
+     */
+
+    int priv_data_size;
+    int (*init)(AVBSFContext *ctx);
+    int (*filter)(AVBSFContext *ctx, AVPacket *pkt);
+    void (*close)(AVBSFContext *ctx);
+    void (*flush)(AVBSFContext *ctx);
+} AVBitStreamFilter;
+
+#if FF_API_OLD_BSF
+/**
+ * @deprecated the old bitstream filtering API (using AVBitStreamFilterContext)
+ * is deprecated. Use the new bitstream filtering API (using AVBSFContext).
+ */
+attribute_deprecated
+void av_register_bitstream_filter(AVBitStreamFilter *bsf);
+/**
+ * @deprecated the old bitstream filtering API (using AVBitStreamFilterContext)
+ * is deprecated. Use av_bsf_get_by_name(), av_bsf_alloc(), and av_bsf_init()
+ * from the new bitstream filtering API (using AVBSFContext).
+ */
+attribute_deprecated
+AVBitStreamFilterContext *av_bitstream_filter_init(const char *name);
+/**
+ * @deprecated the old bitstream filtering API (using AVBitStreamFilterContext)
+ * is deprecated. Use av_bsf_send_packet() and av_bsf_receive_packet() from the
+ * new bitstream filtering API (using AVBSFContext).
+ */
+attribute_deprecated
+int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
+                               AVCodecContext *avctx, const char *args,
+                               uint8_t **poutbuf, int *poutbuf_size,
+                               const uint8_t *buf, int buf_size, int keyframe);
+/**
+ * @deprecated the old bitstream filtering API (using AVBitStreamFilterContext)
+ * is deprecated. Use av_bsf_free() from the new bitstream filtering API (using
+ * AVBSFContext).
+ */
+attribute_deprecated
+void av_bitstream_filter_close(AVBitStreamFilterContext *bsf);
+/**
+ * @deprecated the old bitstream filtering API (using AVBitStreamFilterContext)
+ * is deprecated. Use av_bsf_iterate() from the new bitstream filtering API (using
+ * AVBSFContext).
+ */
+attribute_deprecated
+const AVBitStreamFilter *av_bitstream_filter_next(const AVBitStreamFilter *f);
+#endif
+
+/**
+ * @return a bitstream filter with the specified name or NULL if no such
+ *         bitstream filter exists.
+ */
+const AVBitStreamFilter *av_bsf_get_by_name(const char *name);
+
+/**
+ * Iterate over all registered bitstream filters.
+ *
+ * @param opaque a pointer where libavcodec will store the iteration state. Must
+ *               point to NULL to start the iteration.
+ *
+ * @return the next registered bitstream filter or NULL when the iteration is
+ *         finished
+ */
+const AVBitStreamFilter *av_bsf_iterate(void **opaque);
+#if FF_API_NEXT
+attribute_deprecated
+const AVBitStreamFilter *av_bsf_next(void **opaque);
+#endif
+
+/**
+ * Allocate a context for a given bitstream filter. The caller must fill in the
+ * context parameters as described in the documentation and then call
+ * av_bsf_init() before sending any data to the filter.
+ *
+ * @param filter the filter for which to allocate an instance.
+ * @param ctx a pointer into which the pointer to the newly-allocated context
+ *            will be written. It must be freed with av_bsf_free() after the
+ *            filtering is done.
+ *
+ * @return 0 on success, a negative AVERROR code on failure
+ */
+int av_bsf_alloc(const AVBitStreamFilter *filter, AVBSFContext **ctx);
+
+/**
+ * Prepare the filter for use, after all the parameters and options have been
+ * set.
+ */
+int av_bsf_init(AVBSFContext *ctx);
+
+/**
+ * Submit a packet for filtering.
+ *
+ * After sending each packet, the filter must be completely drained by calling
+ * av_bsf_receive_packet() repeatedly until it returns AVERROR(EAGAIN) or
+ * AVERROR_EOF.
+ *
+ * @param pkt the packet to filter. The bitstream filter will take ownership of
+ * the packet and reset the contents of pkt. pkt is not touched if an error occurs.
+ * This parameter may be NULL, which signals the end of the stream (i.e. no more
+ * packets will be sent). That will cause the filter to output any packets it
+ * may have buffered internally.
+ *
+ * @return 0 on success, a negative AVERROR on error.
+ */
+int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt);
+
+/**
+ * Retrieve a filtered packet.
+ *
+ * @param[out] pkt this struct will be filled with the contents of the filtered
+ *                 packet. It is owned by the caller and must be freed using
+ *                 av_packet_unref() when it is no longer needed.
+ *                 This parameter should be "clean" (i.e. freshly allocated
+ *                 with av_packet_alloc() or unreffed with av_packet_unref())
+ *                 when this function is called. If this function returns
+ *                 successfully, the contents of pkt will be completely
+ *                 overwritten by the returned data. On failure, pkt is not
+ *                 touched.
+ *
+ * @return 0 on success. AVERROR(EAGAIN) if more packets need to be sent to the
+ * filter (using av_bsf_send_packet()) to get more output. AVERROR_EOF if there
+ * will be no further output from the filter. Another negative AVERROR value if
+ * an error occurs.
+ *
+ * @note one input packet may result in several output packets, so after sending
+ * a packet with av_bsf_send_packet(), this function needs to be called
+ * repeatedly until it stops returning 0. It is also possible for a filter to
+ * output fewer packets than were sent to it, so this function may return
+ * AVERROR(EAGAIN) immediately after a successful av_bsf_send_packet() call.
+ */
+int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt);
+
+/**
+ * Reset the internal bitstream filter state / flush internal buffers.
+ */
+void av_bsf_flush(AVBSFContext *ctx);
+
+/**
+ * Free a bitstream filter context and everything associated with it; write NULL
+ * into the supplied pointer.
+ */
+void av_bsf_free(AVBSFContext **ctx);
+
+/**
+ * Get the AVClass for AVBSFContext. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *av_bsf_get_class(void);
+
+/**
+ * Structure for chain/list of bitstream filters.
+ * Empty list can be allocated by av_bsf_list_alloc().
+ */
+typedef struct AVBSFList AVBSFList;
+
+/**
+ * Allocate empty list of bitstream filters.
+ * The list must be later freed by av_bsf_list_free()
+ * or finalized by av_bsf_list_finalize().
+ *
+ * @return Pointer to @ref AVBSFList on success, NULL in case of failure
+ */
+AVBSFList *av_bsf_list_alloc(void);
+
+/**
+ * Free list of bitstream filters.
+ *
+ * @param lst Pointer to pointer returned by av_bsf_list_alloc()
+ */
+void av_bsf_list_free(AVBSFList **lst);
+
+/**
+ * Append bitstream filter to the list of bitstream filters.
+ *
+ * @param lst List to append to
+ * @param bsf Filter context to be appended
+ *
+ * @return >=0 on success, negative AVERROR in case of failure
+ */
+int av_bsf_list_append(AVBSFList *lst, AVBSFContext *bsf);
+
+/**
+ * Construct new bitstream filter context given it's name and options
+ * and append it to the list of bitstream filters.
+ *
+ * @param lst      List to append to
+ * @param bsf_name Name of the bitstream filter
+ * @param options  Options for the bitstream filter, can be set to NULL
+ *
+ * @return >=0 on success, negative AVERROR in case of failure
+ */
+int av_bsf_list_append2(AVBSFList *lst, const char * bsf_name, AVDictionary **options);
+/**
+ * Finalize list of bitstream filters.
+ *
+ * This function will transform @ref AVBSFList to single @ref AVBSFContext,
+ * so the whole chain of bitstream filters can be treated as single filter
+ * freshly allocated by av_bsf_alloc().
+ * If the call is successful, @ref AVBSFList structure is freed and lst
+ * will be set to NULL. In case of failure, caller is responsible for
+ * freeing the structure by av_bsf_list_free()
+ *
+ * @param      lst Filter list structure to be transformed
+ * @param[out] bsf Pointer to be set to newly created @ref AVBSFContext structure
+ *                 representing the chain of bitstream filters
+ *
+ * @return >=0 on success, negative AVERROR in case of failure
+ */
+int av_bsf_list_finalize(AVBSFList **lst, AVBSFContext **bsf);
+
+/**
+ * Parse string describing list of bitstream filters and create single
+ * @ref AVBSFContext describing the whole chain of bitstream filters.
+ * Resulting @ref AVBSFContext can be treated as any other @ref AVBSFContext freshly
+ * allocated by av_bsf_alloc().
+ *
+ * @param      str String describing chain of bitstream filters in format
+ *                 `bsf1[=opt1=val1:opt2=val2][,bsf2]`
+ * @param[out] bsf Pointer to be set to newly created @ref AVBSFContext structure
+ *                 representing the chain of bitstream filters
+ *
+ * @return >=0 on success, negative AVERROR in case of failure
+ */
+int av_bsf_list_parse_str(const char *str, AVBSFContext **bsf);
+
+/**
+ * Get null/pass-through bitstream filter.
+ *
+ * @param[out] bsf Pointer to be set to new instance of pass-through bitstream filter
+ *
+ * @return
+ */
+int av_bsf_get_null_filter(AVBSFContext **bsf);
+
+/* memory */
+
+/**
+ * Same behaviour av_fast_malloc but the buffer has additional
+ * AV_INPUT_BUFFER_PADDING_SIZE at the end which will always be 0.
+ *
+ * In addition the whole buffer will initially and after resizes
+ * be 0-initialized so that no uninitialized data will ever appear.
+ */
+void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size);
+
+/**
+ * Same behaviour av_fast_padded_malloc except that buffer will always
+ * be 0-initialized after call.
+ */
+void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size);
+
+/**
+ * Encode extradata length to a buffer. Used by xiph codecs.
+ *
+ * @param s buffer to write to; must be at least (v/255+1) bytes long
+ * @param v size of extradata in bytes
+ * @return number of bytes written to the buffer.
+ */
+unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
+
+#if FF_API_USER_VISIBLE_AVHWACCEL
+/**
+ * Register the hardware accelerator hwaccel.
+ *
+ * @deprecated  This function doesn't do anything.
+ */
+attribute_deprecated
+void av_register_hwaccel(AVHWAccel *hwaccel);
+
+/**
+ * If hwaccel is NULL, returns the first registered hardware accelerator,
+ * if hwaccel is non-NULL, returns the next registered hardware accelerator
+ * after hwaccel, or NULL if hwaccel is the last one.
+ *
+ * @deprecated  AVHWaccel structures contain no user-serviceable parts, so
+ *              this function should not be used.
+ */
+attribute_deprecated
+AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel);
+#endif
+
+#if FF_API_LOCKMGR
+/**
+ * Lock operation used by lockmgr
+ *
+ * @deprecated Deprecated together with av_lockmgr_register().
+ */
+enum AVLockOp {
+  AV_LOCK_CREATE,  ///< Create a mutex
+  AV_LOCK_OBTAIN,  ///< Lock the mutex
+  AV_LOCK_RELEASE, ///< Unlock the mutex
+  AV_LOCK_DESTROY, ///< Free mutex resources
+};
+
+/**
+ * Register a user provided lock manager supporting the operations
+ * specified by AVLockOp. The "mutex" argument to the function points
+ * to a (void *) where the lockmgr should store/get a pointer to a user
+ * allocated mutex. It is NULL upon AV_LOCK_CREATE and equal to the
+ * value left by the last call for all other ops. If the lock manager is
+ * unable to perform the op then it should leave the mutex in the same
+ * state as when it was called and return a non-zero value. However,
+ * when called with AV_LOCK_DESTROY the mutex will always be assumed to
+ * have been successfully destroyed. If av_lockmgr_register succeeds
+ * it will return a non-negative value, if it fails it will return a
+ * negative value and destroy all mutex and unregister all callbacks.
+ * av_lockmgr_register is not thread-safe, it must be called from a
+ * single thread before any calls which make use of locking are used.
+ *
+ * @param cb User defined callback. av_lockmgr_register invokes calls
+ *           to this callback and the previously registered callback.
+ *           The callback will be used to create more than one mutex
+ *           each of which must be backed by its own underlying locking
+ *           mechanism (i.e. do not use a single static object to
+ *           implement your lock manager). If cb is set to NULL the
+ *           lockmgr will be unregistered.
+ *
+ * @deprecated This function does nothing, and always returns 0. Be sure to
+ *             build with thread support to get basic thread safety.
+ */
+attribute_deprecated
+int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op));
+#endif
+
+/**
+ * Get the type of the given codec.
+ */
+enum AVMediaType avcodec_get_type(enum AVCodecID codec_id);
+
+/**
+ * Get the name of a codec.
+ * @return  a static string identifying the codec; never NULL
+ */
+const char *avcodec_get_name(enum AVCodecID id);
+
+/**
+ * @return a positive value if s is open (i.e. avcodec_open2() was called on it
+ * with no corresponding avcodec_close()), 0 otherwise.
+ */
+int avcodec_is_open(AVCodecContext *s);
+
+/**
+ * @return a non-zero number if codec is an encoder, zero otherwise
+ */
+int av_codec_is_encoder(const AVCodec *codec);
+
+/**
+ * @return a non-zero number if codec is a decoder, zero otherwise
+ */
+int av_codec_is_decoder(const AVCodec *codec);
+
+/**
+ * @return descriptor for given codec ID or NULL if no descriptor exists.
+ */
+const AVCodecDescriptor *avcodec_descriptor_get(enum AVCodecID id);
+
+/**
+ * Iterate over all codec descriptors known to libavcodec.
+ *
+ * @param prev previous descriptor. NULL to get the first descriptor.
+ *
+ * @return next descriptor or NULL after the last descriptor
+ */
+const AVCodecDescriptor *avcodec_descriptor_next(const AVCodecDescriptor *prev);
+
+/**
+ * @return codec descriptor with the given name or NULL if no such descriptor
+ *         exists.
+ */
+const AVCodecDescriptor *avcodec_descriptor_get_by_name(const char *name);
+
+/**
+ * Allocate a CPB properties structure and initialize its fields to default
+ * values.
+ *
+ * @param size if non-NULL, the size of the allocated struct will be written
+ *             here. This is useful for embedding it in side data.
+ *
+ * @return the newly allocated struct or NULL on failure
+ */
+AVCPBProperties *av_cpb_properties_alloc(size_t *size);
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_AVCODEC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avdct.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avdct.c
new file mode 100644
index 000000000..47e5f7134
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avdct.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2014 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
+#include "idctdsp.h"
+#include "fdctdsp.h"
+#include "pixblockdsp.h"
+#include "avdct.h"
+
+#define OFFSET(x) offsetof(AVDCT,x)
+#define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
+//these names are too long to be readable
+#define V AV_OPT_FLAG_VIDEO_PARAM
+#define A AV_OPT_FLAG_AUDIO_PARAM
+#define E AV_OPT_FLAG_ENCODING_PARAM
+#define D AV_OPT_FLAG_DECODING_PARAM
+
+static const AVOption avdct_options[] = {
+{"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, "dct"},
+{"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"},
+{"fastint", "fast integer (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"},
+{"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"},
+{"mmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, "dct"},
+{"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, "dct"},
+{"faan", "floating point AAN DCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"},
+
+{"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, "idct"},
+{"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"int", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simple", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplemmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"arm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplearm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplearmv5te", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplearmv6", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simpleneon", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"xvid", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"xvidmmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"faani", "floating point AAN IDCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"},
+{"simpleauto", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEAUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
+
+{"bits_per_sample", "", OFFSET(bits_per_sample), AV_OPT_TYPE_INT, {.i64 = 8 }, 0, 14, 0,},
+{NULL},
+};
+
+static const AVClass avdct_class = {
+    .class_name              = "AVDCT",
+    .option                  = avdct_options,
+    .version                 = LIBAVUTIL_VERSION_INT,
+};
+
+const AVClass *avcodec_dct_get_class(void)
+{
+    return &avdct_class;
+}
+
+AVDCT *avcodec_dct_alloc(void)
+{
+    AVDCT *dsp = av_mallocz(sizeof(AVDCT));
+
+    if (!dsp)
+        return NULL;
+
+    dsp->av_class = &avdct_class;
+    av_opt_set_defaults(dsp);
+
+    return dsp;
+}
+
+int avcodec_dct_init(AVDCT *dsp)
+{
+    AVCodecContext *avctx = avcodec_alloc_context3(NULL);
+
+    if (!avctx)
+        return AVERROR(ENOMEM);
+
+    avctx->idct_algo = dsp->idct_algo;
+    avctx->dct_algo  = dsp->dct_algo;
+    avctx->bits_per_raw_sample = dsp->bits_per_sample;
+
+#define COPY(src, name) memcpy(&dsp->name, &src.name, sizeof(dsp->name))
+
+#if CONFIG_IDCTDSP
+    {
+        IDCTDSPContext idsp;
+        ff_idctdsp_init(&idsp, avctx);
+        COPY(idsp, idct);
+        COPY(idsp, idct_permutation);
+    }
+#endif
+
+#if CONFIG_FDCTDSP
+    {
+        FDCTDSPContext fdsp;
+        ff_fdctdsp_init(&fdsp, avctx);
+        COPY(fdsp, fdct);
+    }
+#endif
+
+#if CONFIG_PIXBLOCKDSP
+    {
+        PixblockDSPContext pdsp;
+        ff_pixblockdsp_init(&pdsp, avctx);
+        COPY(pdsp, get_pixels);
+    }
+#endif
+
+    avcodec_free_context(&avctx);
+
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avdct.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avdct.h
new file mode 100644
index 000000000..272422e44
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avdct.h
@@ -0,0 +1,84 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AVDCT_H
+#define AVCODEC_AVDCT_H
+
+#include "libavutil/opt.h"
+
+/**
+ * AVDCT context.
+ * @note function pointers can be NULL if the specific features have been
+ *       disabled at build time.
+ */
+typedef struct AVDCT {
+    const AVClass *av_class;
+
+    void (*idct)(int16_t *block /* align 16 */);
+
+    /**
+     * IDCT input permutation.
+     * Several optimized IDCTs need a permutated input (relative to the
+     * normal order of the reference IDCT).
+     * This permutation must be performed before the idct_put/add.
+     * Note, normally this can be merged with the zigzag/alternate scan<br>
+     * An example to avoid confusion:
+     * - (->decode coeffs -> zigzag reorder -> dequant -> reference IDCT -> ...)
+     * - (x -> reference DCT -> reference IDCT -> x)
+     * - (x -> reference DCT -> simple_mmx_perm = idct_permutation
+     *    -> simple_idct_mmx -> x)
+     * - (-> decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant
+     *    -> simple_idct_mmx -> ...)
+     */
+    uint8_t idct_permutation[64];
+
+    void (*fdct)(int16_t *block /* align 16 */);
+
+
+    /**
+     * DCT algorithm.
+     * must use AVOptions to set this field.
+     */
+    int dct_algo;
+
+    /**
+     * IDCT algorithm.
+     * must use AVOptions to set this field.
+     */
+    int idct_algo;
+
+    void (*get_pixels)(int16_t *block /* align 16 */,
+                       const uint8_t *pixels /* align 8 */,
+                       ptrdiff_t line_size);
+
+    int bits_per_sample;
+} AVDCT;
+
+/**
+ * Allocates a AVDCT context.
+ * This needs to be initialized with avcodec_dct_init() after optionally
+ * configuring it with AVOptions.
+ *
+ * To free it use av_free()
+ */
+AVDCT *avcodec_dct_alloc(void);
+int avcodec_dct_init(AVDCT *);
+
+const AVClass *avcodec_dct_get_class(void);
+
+#endif /* AVCODEC_AVDCT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avfft.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avfft.c
new file mode 100644
index 000000000..2200f3770
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avfft.c
@@ -0,0 +1,145 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/mem.h"
+#include "avfft.h"
+#include "fft.h"
+#include "rdft.h"
+#include "dct.h"
+
+/* FFT */
+
+FFTContext *av_fft_init(int nbits, int inverse)
+{
+    FFTContext *s = av_mallocz(sizeof(*s));
+
+    if (s && ff_fft_init(s, nbits, inverse))
+        av_freep(&s);
+
+    return s;
+}
+
+void av_fft_permute(FFTContext *s, FFTComplex *z)
+{
+    s->fft_permute(s, z);
+}
+
+void av_fft_calc(FFTContext *s, FFTComplex *z)
+{
+    s->fft_calc(s, z);
+}
+
+av_cold void av_fft_end(FFTContext *s)
+{
+    if (s) {
+        ff_fft_end(s);
+        av_free(s);
+    }
+}
+
+#if CONFIG_MDCT
+
+FFTContext *av_mdct_init(int nbits, int inverse, double scale)
+{
+    FFTContext *s = av_malloc(sizeof(*s));
+
+    if (s && ff_mdct_init(s, nbits, inverse, scale))
+        av_freep(&s);
+
+    return s;
+}
+
+void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input)
+{
+    s->imdct_calc(s, output, input);
+}
+
+void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input)
+{
+    s->imdct_half(s, output, input);
+}
+
+void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input)
+{
+    s->mdct_calc(s, output, input);
+}
+
+av_cold void av_mdct_end(FFTContext *s)
+{
+    if (s) {
+        ff_mdct_end(s);
+        av_free(s);
+    }
+}
+
+#endif /* CONFIG_MDCT */
+
+#if CONFIG_RDFT
+
+RDFTContext *av_rdft_init(int nbits, enum RDFTransformType trans)
+{
+    RDFTContext *s = av_malloc(sizeof(*s));
+
+    if (s && ff_rdft_init(s, nbits, trans))
+        av_freep(&s);
+
+    return s;
+}
+
+void av_rdft_calc(RDFTContext *s, FFTSample *data)
+{
+    s->rdft_calc(s, data);
+}
+
+av_cold void av_rdft_end(RDFTContext *s)
+{
+    if (s) {
+        ff_rdft_end(s);
+        av_free(s);
+    }
+}
+
+#endif /* CONFIG_RDFT */
+
+#if CONFIG_DCT
+
+DCTContext *av_dct_init(int nbits, enum DCTTransformType inverse)
+{
+    DCTContext *s = av_malloc(sizeof(*s));
+
+    if (s && ff_dct_init(s, nbits, inverse))
+        av_freep(&s);
+
+    return s;
+}
+
+void av_dct_calc(DCTContext *s, FFTSample *data)
+{
+    s->dct_calc(s, data);
+}
+
+av_cold void av_dct_end(DCTContext *s)
+{
+    if (s) {
+        ff_dct_end(s);
+        av_free(s);
+    }
+}
+
+#endif /* CONFIG_DCT */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avfft.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avfft.h
new file mode 100644
index 000000000..0c0f9b8d8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avfft.h
@@ -0,0 +1,118 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AVFFT_H
+#define AVCODEC_AVFFT_H
+
+/**
+ * @file
+ * @ingroup lavc_fft
+ * FFT functions
+ */
+
+/**
+ * @defgroup lavc_fft FFT functions
+ * @ingroup lavc_misc
+ *
+ * @{
+ */
+
+typedef float FFTSample;
+
+typedef struct FFTComplex {
+    FFTSample re, im;
+} FFTComplex;
+
+typedef struct FFTContext FFTContext;
+
+/**
+ * Set up a complex FFT.
+ * @param nbits           log2 of the length of the input array
+ * @param inverse         if 0 perform the forward transform, if 1 perform the inverse
+ */
+FFTContext *av_fft_init(int nbits, int inverse);
+
+/**
+ * Do the permutation needed BEFORE calling ff_fft_calc().
+ */
+void av_fft_permute(FFTContext *s, FFTComplex *z);
+
+/**
+ * Do a complex FFT with the parameters defined in av_fft_init(). The
+ * input data must be permuted before. No 1.0/sqrt(n) normalization is done.
+ */
+void av_fft_calc(FFTContext *s, FFTComplex *z);
+
+void av_fft_end(FFTContext *s);
+
+FFTContext *av_mdct_init(int nbits, int inverse, double scale);
+void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input);
+void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input);
+void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input);
+void av_mdct_end(FFTContext *s);
+
+/* Real Discrete Fourier Transform */
+
+enum RDFTransformType {
+    DFT_R2C,
+    IDFT_C2R,
+    IDFT_R2C,
+    DFT_C2R,
+};
+
+typedef struct RDFTContext RDFTContext;
+
+/**
+ * Set up a real FFT.
+ * @param nbits           log2 of the length of the input array
+ * @param trans           the type of transform
+ */
+RDFTContext *av_rdft_init(int nbits, enum RDFTransformType trans);
+void av_rdft_calc(RDFTContext *s, FFTSample *data);
+void av_rdft_end(RDFTContext *s);
+
+/* Discrete Cosine Transform */
+
+typedef struct DCTContext DCTContext;
+
+enum DCTTransformType {
+    DCT_II = 0,
+    DCT_III,
+    DCT_I,
+    DST_I,
+};
+
+/**
+ * Set up DCT.
+ *
+ * @param nbits           size of the input array:
+ *                        (1 << nbits)     for DCT-II, DCT-III and DST-I
+ *                        (1 << nbits) + 1 for DCT-I
+ * @param type            the type of transform
+ *
+ * @note the first element of the input of DST-I is ignored
+ */
+DCTContext *av_dct_init(int nbits, enum DCTTransformType type);
+void av_dct_calc(DCTContext *s, FFTSample *data);
+void av_dct_end (DCTContext *s);
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_AVFFT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avpacket.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avpacket.c
new file mode 100644
index 000000000..2b2006721
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avpacket.c
@@ -0,0 +1,743 @@
+/*
+ * AVPacket functions for libavcodec
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <string.h>
+
+#include "libavutil/avassert.h"
+#include "libavutil/common.h"
+#include "libavutil/internal.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/mem.h"
+#include "avcodec.h"
+#include "bytestream.h"
+#include "internal.h"
+
+void av_init_packet(AVPacket *pkt)
+{
+    pkt->pts                  = AV_NOPTS_VALUE;
+    pkt->dts                  = AV_NOPTS_VALUE;
+    pkt->pos                  = -1;
+    pkt->duration             = 0;
+#if FF_API_CONVERGENCE_DURATION
+FF_DISABLE_DEPRECATION_WARNINGS
+    pkt->convergence_duration = 0;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+    pkt->flags                = 0;
+    pkt->stream_index         = 0;
+    pkt->buf                  = NULL;
+    pkt->side_data            = NULL;
+    pkt->side_data_elems      = 0;
+}
+
+AVPacket *av_packet_alloc(void)
+{
+    AVPacket *pkt = av_mallocz(sizeof(AVPacket));
+    if (!pkt)
+        return pkt;
+
+    av_packet_unref(pkt);
+
+    return pkt;
+}
+
+void av_packet_free(AVPacket **pkt)
+{
+    if (!pkt || !*pkt)
+        return;
+
+    av_packet_unref(*pkt);
+    av_freep(pkt);
+}
+
+static int packet_alloc(AVBufferRef **buf, int size)
+{
+    int ret;
+    if (size < 0 || size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
+        return AVERROR(EINVAL);
+
+    ret = av_buffer_realloc(buf, size + AV_INPUT_BUFFER_PADDING_SIZE);
+    if (ret < 0)
+        return ret;
+
+    memset((*buf)->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+
+    return 0;
+}
+
+int av_new_packet(AVPacket *pkt, int size)
+{
+    AVBufferRef *buf = NULL;
+    int ret = packet_alloc(&buf, size);
+    if (ret < 0)
+        return ret;
+
+    av_init_packet(pkt);
+    pkt->buf      = buf;
+    pkt->data     = buf->data;
+    pkt->size     = size;
+
+    return 0;
+}
+
+void av_shrink_packet(AVPacket *pkt, int size)
+{
+    if (pkt->size <= size)
+        return;
+    pkt->size = size;
+    memset(pkt->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+}
+
+int av_grow_packet(AVPacket *pkt, int grow_by)
+{
+    int new_size;
+    av_assert0((unsigned)pkt->size <= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
+    if ((unsigned)grow_by >
+        INT_MAX - (pkt->size + AV_INPUT_BUFFER_PADDING_SIZE))
+        return AVERROR(ENOMEM);
+
+    new_size = pkt->size + grow_by + AV_INPUT_BUFFER_PADDING_SIZE;
+    if (pkt->buf) {
+        size_t data_offset;
+        uint8_t *old_data = pkt->data;
+        if (pkt->data == NULL) {
+            data_offset = 0;
+            pkt->data = pkt->buf->data;
+        } else {
+            data_offset = pkt->data - pkt->buf->data;
+            if (data_offset > INT_MAX - new_size)
+                return AVERROR(ENOMEM);
+        }
+
+        if (new_size + data_offset > pkt->buf->size) {
+            int ret = av_buffer_realloc(&pkt->buf, new_size + data_offset);
+            if (ret < 0) {
+                pkt->data = old_data;
+                return ret;
+            }
+            pkt->data = pkt->buf->data + data_offset;
+        }
+    } else {
+        pkt->buf = av_buffer_alloc(new_size);
+        if (!pkt->buf)
+            return AVERROR(ENOMEM);
+        if (pkt->size > 0)
+            memcpy(pkt->buf->data, pkt->data, pkt->size);
+        pkt->data = pkt->buf->data;
+    }
+    pkt->size += grow_by;
+    memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+
+    return 0;
+}
+
+int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size)
+{
+    if (size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
+        return AVERROR(EINVAL);
+
+    pkt->buf = av_buffer_create(data, size + AV_INPUT_BUFFER_PADDING_SIZE,
+                                av_buffer_default_free, NULL, 0);
+    if (!pkt->buf)
+        return AVERROR(ENOMEM);
+
+    pkt->data = data;
+    pkt->size = size;
+
+    return 0;
+}
+
+#if FF_API_AVPACKET_OLD_API
+FF_DISABLE_DEPRECATION_WARNINGS
+#define ALLOC_MALLOC(data, size) data = av_malloc(size)
+#define ALLOC_BUF(data, size)                \
+do {                                         \
+    av_buffer_realloc(&pkt->buf, size);      \
+    data = pkt->buf ? pkt->buf->data : NULL; \
+} while (0)
+
+#define DUP_DATA(dst, src, size, padding, ALLOC)                        \
+    do {                                                                \
+        void *data;                                                     \
+        if (padding) {                                                  \
+            if ((unsigned)(size) >                                      \
+                (unsigned)(size) + AV_INPUT_BUFFER_PADDING_SIZE)        \
+                goto failed_alloc;                                      \
+            ALLOC(data, size + AV_INPUT_BUFFER_PADDING_SIZE);           \
+        } else {                                                        \
+            ALLOC(data, size);                                          \
+        }                                                               \
+        if (!data)                                                      \
+            goto failed_alloc;                                          \
+        memcpy(data, src, size);                                        \
+        if (padding)                                                    \
+            memset((uint8_t *)data + size, 0,                           \
+                   AV_INPUT_BUFFER_PADDING_SIZE);                       \
+        dst = data;                                                     \
+    } while (0)
+
+/* Makes duplicates of data, side_data, but does not copy any other fields */
+static int copy_packet_data(AVPacket *pkt, const AVPacket *src, int dup)
+{
+    pkt->data      = NULL;
+    pkt->side_data = NULL;
+    pkt->side_data_elems = 0;
+    if (pkt->buf) {
+        AVBufferRef *ref = av_buffer_ref(src->buf);
+        if (!ref)
+            return AVERROR(ENOMEM);
+        pkt->buf  = ref;
+        pkt->data = ref->data;
+    } else {
+        DUP_DATA(pkt->data, src->data, pkt->size, 1, ALLOC_BUF);
+    }
+    if (src->side_data_elems && dup) {
+        pkt->side_data = src->side_data;
+        pkt->side_data_elems = src->side_data_elems;
+    }
+    if (src->side_data_elems && !dup) {
+        return av_copy_packet_side_data(pkt, src);
+    }
+    return 0;
+
+failed_alloc:
+    av_packet_unref(pkt);
+    return AVERROR(ENOMEM);
+}
+
+int av_copy_packet_side_data(AVPacket *pkt, const AVPacket *src)
+{
+    if (src->side_data_elems) {
+        int i;
+        DUP_DATA(pkt->side_data, src->side_data,
+                src->side_data_elems * sizeof(*src->side_data), 0, ALLOC_MALLOC);
+        if (src != pkt) {
+            memset(pkt->side_data, 0,
+                   src->side_data_elems * sizeof(*src->side_data));
+        }
+        for (i = 0; i < src->side_data_elems; i++) {
+            DUP_DATA(pkt->side_data[i].data, src->side_data[i].data,
+                    src->side_data[i].size, 1, ALLOC_MALLOC);
+            pkt->side_data[i].size = src->side_data[i].size;
+            pkt->side_data[i].type = src->side_data[i].type;
+        }
+    }
+    pkt->side_data_elems = src->side_data_elems;
+    return 0;
+
+failed_alloc:
+    av_packet_unref(pkt);
+    return AVERROR(ENOMEM);
+}
+
+int av_dup_packet(AVPacket *pkt)
+{
+    AVPacket tmp_pkt;
+
+    if (!pkt->buf && pkt->data) {
+        tmp_pkt = *pkt;
+        return copy_packet_data(pkt, &tmp_pkt, 1);
+    }
+    return 0;
+}
+
+int av_copy_packet(AVPacket *dst, const AVPacket *src)
+{
+    *dst = *src;
+    return copy_packet_data(dst, src, 0);
+}
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+void av_packet_free_side_data(AVPacket *pkt)
+{
+    int i;
+    for (i = 0; i < pkt->side_data_elems; i++)
+        av_freep(&pkt->side_data[i].data);
+    av_freep(&pkt->side_data);
+    pkt->side_data_elems = 0;
+}
+
+#if FF_API_AVPACKET_OLD_API
+FF_DISABLE_DEPRECATION_WARNINGS
+void av_free_packet(AVPacket *pkt)
+{
+    if (pkt) {
+        if (pkt->buf)
+            av_buffer_unref(&pkt->buf);
+        pkt->data            = NULL;
+        pkt->size            = 0;
+
+        av_packet_free_side_data(pkt);
+    }
+}
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+                            uint8_t *data, size_t size)
+{
+    AVPacketSideData *tmp;
+    int i, elems = pkt->side_data_elems;
+
+    for (i = 0; i < elems; i++) {
+        AVPacketSideData *sd = &pkt->side_data[i];
+
+        if (sd->type == type) {
+            av_free(sd->data);
+            sd->data = data;
+            sd->size = size;
+            return 0;
+        }
+    }
+
+    if ((unsigned)elems + 1 > AV_PKT_DATA_NB)
+        return AVERROR(ERANGE);
+
+    tmp = av_realloc(pkt->side_data, (elems + 1) * sizeof(*tmp));
+    if (!tmp)
+        return AVERROR(ENOMEM);
+
+    pkt->side_data = tmp;
+    pkt->side_data[elems].data = data;
+    pkt->side_data[elems].size = size;
+    pkt->side_data[elems].type = type;
+    pkt->side_data_elems++;
+
+    return 0;
+}
+
+
+uint8_t *av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+                                 int size)
+{
+    int ret;
+    uint8_t *data;
+
+    if ((unsigned)size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
+        return NULL;
+    data = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
+    if (!data)
+        return NULL;
+
+    ret = av_packet_add_side_data(pkt, type, data, size);
+    if (ret < 0) {
+        av_freep(&data);
+        return NULL;
+    }
+
+    return data;
+}
+
+uint8_t *av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type,
+                                 int *size)
+{
+    int i;
+
+    for (i = 0; i < pkt->side_data_elems; i++) {
+        if (pkt->side_data[i].type == type) {
+            if (size)
+                *size = pkt->side_data[i].size;
+            return pkt->side_data[i].data;
+        }
+    }
+    if (size)
+        *size = 0;
+    return NULL;
+}
+
+const char *av_packet_side_data_name(enum AVPacketSideDataType type)
+{
+    switch(type) {
+    case AV_PKT_DATA_PALETTE:                    return "Palette";
+    case AV_PKT_DATA_NEW_EXTRADATA:              return "New Extradata";
+    case AV_PKT_DATA_PARAM_CHANGE:               return "Param Change";
+    case AV_PKT_DATA_H263_MB_INFO:               return "H263 MB Info";
+    case AV_PKT_DATA_REPLAYGAIN:                 return "Replay Gain";
+    case AV_PKT_DATA_DISPLAYMATRIX:              return "Display Matrix";
+    case AV_PKT_DATA_STEREO3D:                   return "Stereo 3D";
+    case AV_PKT_DATA_AUDIO_SERVICE_TYPE:         return "Audio Service Type";
+    case AV_PKT_DATA_QUALITY_STATS:              return "Quality stats";
+    case AV_PKT_DATA_FALLBACK_TRACK:             return "Fallback track";
+    case AV_PKT_DATA_CPB_PROPERTIES:             return "CPB properties";
+    case AV_PKT_DATA_SKIP_SAMPLES:               return "Skip Samples";
+    case AV_PKT_DATA_JP_DUALMONO:                return "JP Dual Mono";
+    case AV_PKT_DATA_STRINGS_METADATA:           return "Strings Metadata";
+    case AV_PKT_DATA_SUBTITLE_POSITION:          return "Subtitle Position";
+    case AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL:   return "Matroska BlockAdditional";
+    case AV_PKT_DATA_WEBVTT_IDENTIFIER:          return "WebVTT ID";
+    case AV_PKT_DATA_WEBVTT_SETTINGS:            return "WebVTT Settings";
+    case AV_PKT_DATA_METADATA_UPDATE:            return "Metadata Update";
+    case AV_PKT_DATA_MPEGTS_STREAM_ID:           return "MPEGTS Stream ID";
+    case AV_PKT_DATA_MASTERING_DISPLAY_METADATA: return "Mastering display metadata";
+    case AV_PKT_DATA_CONTENT_LIGHT_LEVEL:        return "Content light level metadata";
+    case AV_PKT_DATA_SPHERICAL:                  return "Spherical Mapping";
+    case AV_PKT_DATA_A53_CC:                     return "A53 Closed Captions";
+    case AV_PKT_DATA_ENCRYPTION_INIT_INFO:       return "Encryption initialization data";
+    case AV_PKT_DATA_ENCRYPTION_INFO:            return "Encryption info";
+    case AV_PKT_DATA_AFD:                        return "Active Format Description data";
+    }
+    return NULL;
+}
+
+#if FF_API_MERGE_SD_API
+
+#define FF_MERGE_MARKER 0x8c4d9d108e25e9feULL
+
+int av_packet_merge_side_data(AVPacket *pkt){
+    if(pkt->side_data_elems){
+        AVBufferRef *buf;
+        int i;
+        uint8_t *p;
+        uint64_t size= pkt->size + 8LL + AV_INPUT_BUFFER_PADDING_SIZE;
+        AVPacket old= *pkt;
+        for (i=0; i<old.side_data_elems; i++) {
+            size += old.side_data[i].size + 5LL;
+        }
+        if (size > INT_MAX)
+            return AVERROR(EINVAL);
+        buf = av_buffer_alloc(size);
+        if (!buf)
+            return AVERROR(ENOMEM);
+        pkt->buf = buf;
+        pkt->data = p = buf->data;
+        pkt->size = size - AV_INPUT_BUFFER_PADDING_SIZE;
+        bytestream_put_buffer(&p, old.data, old.size);
+        for (i=old.side_data_elems-1; i>=0; i--) {
+            bytestream_put_buffer(&p, old.side_data[i].data, old.side_data[i].size);
+            bytestream_put_be32(&p, old.side_data[i].size);
+            *p++ = old.side_data[i].type | ((i==old.side_data_elems-1)*128);
+        }
+        bytestream_put_be64(&p, FF_MERGE_MARKER);
+        av_assert0(p-pkt->data == pkt->size);
+        memset(p, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+        av_packet_unref(&old);
+        pkt->side_data_elems = 0;
+        pkt->side_data = NULL;
+        return 1;
+    }
+    return 0;
+}
+
+int av_packet_split_side_data(AVPacket *pkt){
+    if (!pkt->side_data_elems && pkt->size >12 && AV_RB64(pkt->data + pkt->size - 8) == FF_MERGE_MARKER){
+        int i;
+        unsigned int size;
+        uint8_t *p;
+
+        p = pkt->data + pkt->size - 8 - 5;
+        for (i=1; ; i++){
+            size = AV_RB32(p);
+            if (size>INT_MAX - 5 || p - pkt->data < size)
+                return 0;
+            if (p[4]&128)
+                break;
+            if (p - pkt->data < size + 5)
+                return 0;
+            p-= size+5;
+        }
+
+        if (i > AV_PKT_DATA_NB)
+            return AVERROR(ERANGE);
+
+        pkt->side_data = av_malloc_array(i, sizeof(*pkt->side_data));
+        if (!pkt->side_data)
+            return AVERROR(ENOMEM);
+
+        p= pkt->data + pkt->size - 8 - 5;
+        for (i=0; ; i++){
+            size= AV_RB32(p);
+            av_assert0(size<=INT_MAX - 5 && p - pkt->data >= size);
+            pkt->side_data[i].data = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
+            pkt->side_data[i].size = size;
+            pkt->side_data[i].type = p[4]&127;
+            if (!pkt->side_data[i].data)
+                return AVERROR(ENOMEM);
+            memcpy(pkt->side_data[i].data, p-size, size);
+            pkt->size -= size + 5;
+            if(p[4]&128)
+                break;
+            p-= size+5;
+        }
+        pkt->size -= 8;
+        pkt->side_data_elems = i+1;
+        return 1;
+    }
+    return 0;
+}
+#endif
+
+uint8_t *av_packet_pack_dictionary(AVDictionary *dict, int *size)
+{
+    AVDictionaryEntry *t = NULL;
+    uint8_t *data = NULL;
+    *size = 0;
+
+    if (!dict)
+        return NULL;
+
+    while ((t = av_dict_get(dict, "", t, AV_DICT_IGNORE_SUFFIX))) {
+        const size_t keylen   = strlen(t->key);
+        const size_t valuelen = strlen(t->value);
+        const size_t new_size = *size + keylen + 1 + valuelen + 1;
+        uint8_t *const new_data = av_realloc(data, new_size);
+
+        if (!new_data)
+            goto fail;
+        data = new_data;
+        if (new_size > INT_MAX)
+            goto fail;
+
+        memcpy(data + *size, t->key, keylen + 1);
+        memcpy(data + *size + keylen + 1, t->value, valuelen + 1);
+
+        *size = new_size;
+    }
+
+    return data;
+
+fail:
+    av_freep(&data);
+    *size = 0;
+    return NULL;
+}
+
+int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict)
+{
+    const uint8_t *end;
+    int ret = 0;
+
+    if (!dict || !data || !size)
+        return ret;
+    end = data + size;
+    if (size && end[-1])
+        return AVERROR_INVALIDDATA;
+    while (data < end) {
+        const uint8_t *key = data;
+        const uint8_t *val = data + strlen(key) + 1;
+
+        if (val >= end || !*key)
+            return AVERROR_INVALIDDATA;
+
+        ret = av_dict_set(dict, key, val, 0);
+        if (ret < 0)
+            break;
+        data = val + strlen(val) + 1;
+    }
+
+    return ret;
+}
+
+int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+                               int size)
+{
+    int i;
+
+    for (i = 0; i < pkt->side_data_elems; i++) {
+        if (pkt->side_data[i].type == type) {
+            if (size > pkt->side_data[i].size)
+                return AVERROR(ENOMEM);
+            pkt->side_data[i].size = size;
+            return 0;
+        }
+    }
+    return AVERROR(ENOENT);
+}
+
+int av_packet_copy_props(AVPacket *dst, const AVPacket *src)
+{
+    int i;
+
+    dst->pts                  = src->pts;
+    dst->dts                  = src->dts;
+    dst->pos                  = src->pos;
+    dst->duration             = src->duration;
+#if FF_API_CONVERGENCE_DURATION
+FF_DISABLE_DEPRECATION_WARNINGS
+    dst->convergence_duration = src->convergence_duration;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+    dst->flags                = src->flags;
+    dst->stream_index         = src->stream_index;
+
+    dst->side_data            = NULL;
+    dst->side_data_elems      = 0;
+    for (i = 0; i < src->side_data_elems; i++) {
+        enum AVPacketSideDataType type = src->side_data[i].type;
+        int size          = src->side_data[i].size;
+        uint8_t *src_data = src->side_data[i].data;
+        uint8_t *dst_data = av_packet_new_side_data(dst, type, size);
+
+        if (!dst_data) {
+            av_packet_free_side_data(dst);
+            return AVERROR(ENOMEM);
+        }
+        memcpy(dst_data, src_data, size);
+    }
+
+    return 0;
+}
+
+void av_packet_unref(AVPacket *pkt)
+{
+    av_packet_free_side_data(pkt);
+    av_buffer_unref(&pkt->buf);
+    av_init_packet(pkt);
+    pkt->data = NULL;
+    pkt->size = 0;
+}
+
+int av_packet_ref(AVPacket *dst, const AVPacket *src)
+{
+    int ret;
+
+    ret = av_packet_copy_props(dst, src);
+    if (ret < 0)
+        return ret;
+
+    if (!src->buf) {
+        ret = packet_alloc(&dst->buf, src->size);
+        if (ret < 0)
+            goto fail;
+        av_assert1(!src->size || src->data);
+        if (src->size)
+            memcpy(dst->buf->data, src->data, src->size);
+
+        dst->data = dst->buf->data;
+    } else {
+        dst->buf = av_buffer_ref(src->buf);
+        if (!dst->buf) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+        dst->data = src->data;
+    }
+
+    dst->size = src->size;
+
+    return 0;
+fail:
+    av_packet_free_side_data(dst);
+    return ret;
+}
+
+AVPacket *av_packet_clone(const AVPacket *src)
+{
+    AVPacket *ret = av_packet_alloc();
+
+    if (!ret)
+        return ret;
+
+    if (av_packet_ref(ret, src))
+        av_packet_free(&ret);
+
+    return ret;
+}
+
+void av_packet_move_ref(AVPacket *dst, AVPacket *src)
+{
+    *dst = *src;
+    av_init_packet(src);
+    src->data = NULL;
+    src->size = 0;
+}
+
+int av_packet_make_refcounted(AVPacket *pkt)
+{
+    int ret;
+
+    if (pkt->buf)
+        return 0;
+
+    ret = packet_alloc(&pkt->buf, pkt->size);
+    if (ret < 0)
+        return ret;
+    av_assert1(!pkt->size || pkt->data);
+    if (pkt->size)
+        memcpy(pkt->buf->data, pkt->data, pkt->size);
+
+    pkt->data = pkt->buf->data;
+
+    return 0;
+}
+
+int av_packet_make_writable(AVPacket *pkt)
+{
+    AVBufferRef *buf = NULL;
+    int ret;
+
+    if (pkt->buf && av_buffer_is_writable(pkt->buf))
+        return 0;
+
+    ret = packet_alloc(&buf, pkt->size);
+    if (ret < 0)
+        return ret;
+    av_assert1(!pkt->size || pkt->data);
+    if (pkt->size)
+        memcpy(buf->data, pkt->data, pkt->size);
+
+    av_buffer_unref(&pkt->buf);
+    pkt->buf  = buf;
+    pkt->data = buf->data;
+
+    return 0;
+}
+
+void av_packet_rescale_ts(AVPacket *pkt, AVRational src_tb, AVRational dst_tb)
+{
+    if (pkt->pts != AV_NOPTS_VALUE)
+        pkt->pts = av_rescale_q(pkt->pts, src_tb, dst_tb);
+    if (pkt->dts != AV_NOPTS_VALUE)
+        pkt->dts = av_rescale_q(pkt->dts, src_tb, dst_tb);
+    if (pkt->duration > 0)
+        pkt->duration = av_rescale_q(pkt->duration, src_tb, dst_tb);
+#if FF_API_CONVERGENCE_DURATION
+FF_DISABLE_DEPRECATION_WARNINGS
+    if (pkt->convergence_duration > 0)
+        pkt->convergence_duration = av_rescale_q(pkt->convergence_duration, src_tb, dst_tb);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+}
+
+int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)
+{
+    uint8_t *side_data;
+    int side_data_size;
+    int i;
+
+    side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS, &side_data_size);
+    if (!side_data) {
+        side_data_size = 4+4+8*error_count;
+        side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_QUALITY_STATS,
+                                            side_data_size);
+    }
+
+    if (!side_data || side_data_size < 4+4+8*error_count)
+        return AVERROR(ENOMEM);
+
+    AV_WL32(side_data   , quality  );
+    side_data[4] = pict_type;
+    side_data[5] = error_count;
+    for (i = 0; i<error_count; i++)
+        AV_WL64(side_data+8 + 8*i , error[i]);
+
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avpicture.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avpicture.c
new file mode 100644
index 000000000..56435f4fc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/avpicture.c
@@ -0,0 +1,82 @@
+/*
+ * AVPicture management routines
+ * Copyright (c) 2001, 2002, 2003 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AVPicture management routines
+ */
+
+#include "avcodec.h"
+#include "internal.h"
+#include "libavutil/common.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/internal.h"
+#include "libavutil/colorspace.h"
+
+#if FF_API_AVPICTURE
+FF_DISABLE_DEPRECATION_WARNINGS
+int avpicture_fill(AVPicture *picture, const uint8_t *ptr,
+                   enum AVPixelFormat pix_fmt, int width, int height)
+{
+    return av_image_fill_arrays(picture->data, picture->linesize,
+                                ptr, pix_fmt, width, height, 1);
+}
+
+int avpicture_layout(const AVPicture* src, enum AVPixelFormat pix_fmt, int width, int height,
+                     unsigned char *dest, int dest_size)
+{
+    return av_image_copy_to_buffer(dest, dest_size,
+                                   (const uint8_t * const*)src->data, src->linesize,
+                                   pix_fmt, width, height, 1);
+}
+
+int avpicture_get_size(enum AVPixelFormat pix_fmt, int width, int height)
+{
+    return av_image_get_buffer_size(pix_fmt, width, height, 1);
+}
+
+int avpicture_alloc(AVPicture *picture,
+                    enum AVPixelFormat pix_fmt, int width, int height)
+{
+    int ret = av_image_alloc(picture->data, picture->linesize,
+                             width, height, pix_fmt, 1);
+    if (ret < 0) {
+        memset(picture, 0, sizeof(AVPicture));
+        return ret;
+    }
+
+    return 0;
+}
+
+void avpicture_free(AVPicture *picture)
+{
+    av_freep(&picture->data[0]);
+}
+
+void av_picture_copy(AVPicture *dst, const AVPicture *src,
+                     enum AVPixelFormat pix_fmt, int width, int height)
+{
+    av_image_copy(dst->data, dst->linesize, (const uint8_t **)src->data,
+                  src->linesize, pix_fmt, width, height);
+}
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif /* FF_API_AVPICTURE */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bitstream.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bitstream.c
new file mode 100644
index 000000000..be8a0f634
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bitstream.c
@@ -0,0 +1,362 @@
+/*
+ * Common bit i/o utils
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2010 Loren Merritt
+ *
+ * alternative bitstream reader & writer by Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * bitstream api.
+ */
+
+#include "libavutil/avassert.h"
+#include "libavutil/qsort.h"
+#include "avcodec.h"
+#include "internal.h"
+#include "mathops.h"
+#include "put_bits.h"
+#include "vlc.h"
+
+const uint8_t ff_log2_run[41]={
+ 0, 0, 0, 0, 1, 1, 1, 1,
+ 2, 2, 2, 2, 3, 3, 3, 3,
+ 4, 4, 5, 5, 6, 6, 7, 7,
+ 8, 9,10,11,12,13,14,15,
+16,17,18,19,20,21,22,23,
+24,
+};
+
+void avpriv_align_put_bits(PutBitContext *s)
+{
+    put_bits(s, s->bit_left & 7, 0);
+}
+
+void avpriv_put_string(PutBitContext *pb, const char *string,
+                       int terminate_string)
+{
+    while (*string) {
+        put_bits(pb, 8, *string);
+        string++;
+    }
+    if (terminate_string)
+        put_bits(pb, 8, 0);
+}
+
+void avpriv_copy_bits(PutBitContext *pb, const uint8_t *src, int length)
+{
+    int words = length >> 4;
+    int bits  = length & 15;
+    int i;
+
+    if (length == 0)
+        return;
+
+    av_assert0(length <= put_bits_left(pb));
+
+    if (CONFIG_SMALL || words < 16 || put_bits_count(pb) & 7) {
+        for (i = 0; i < words; i++)
+            put_bits(pb, 16, AV_RB16(src + 2 * i));
+    } else {
+        for (i = 0; put_bits_count(pb) & 31; i++)
+            put_bits(pb, 8, src[i]);
+        flush_put_bits(pb);
+        memcpy(put_bits_ptr(pb), src + i, 2 * words - i);
+        skip_put_bytes(pb, 2 * words - i);
+    }
+
+    put_bits(pb, bits, AV_RB16(src + 2 * words) >> (16 - bits));
+}
+
+/* VLC decoding */
+
+#define GET_DATA(v, table, i, wrap, size)                   \
+{                                                           \
+    const uint8_t *ptr = (const uint8_t *)table + i * wrap; \
+    switch(size) {                                          \
+    case 1:                                                 \
+        v = *(const uint8_t *)ptr;                          \
+        break;                                              \
+    case 2:                                                 \
+        v = *(const uint16_t *)ptr;                         \
+        break;                                              \
+    case 4:                                                 \
+        v = *(const uint32_t *)ptr;                         \
+        break;                                              \
+    default:                                                \
+        av_assert1(0);                                      \
+    }                                                       \
+}
+
+
+static int alloc_table(VLC *vlc, int size, int use_static)
+{
+    int index = vlc->table_size;
+
+    vlc->table_size += size;
+    if (vlc->table_size > vlc->table_allocated) {
+        if (use_static)
+            abort(); // cannot do anything, init_vlc() is used with too little memory
+        vlc->table_allocated += (1 << vlc->bits);
+        vlc->table = av_realloc_f(vlc->table, vlc->table_allocated, sizeof(VLC_TYPE) * 2);
+        if (!vlc->table) {
+            vlc->table_allocated = 0;
+            vlc->table_size = 0;
+            return AVERROR(ENOMEM);
+        }
+        memset(vlc->table + vlc->table_allocated - (1 << vlc->bits), 0, sizeof(VLC_TYPE) * 2 << vlc->bits);
+    }
+    return index;
+}
+
+typedef struct VLCcode {
+    uint8_t bits;
+    uint16_t symbol;
+    /** codeword, with the first bit-to-be-read in the msb
+     * (even if intended for a little-endian bitstream reader) */
+    uint32_t code;
+} VLCcode;
+
+static int compare_vlcspec(const void *a, const void *b)
+{
+    const VLCcode *sa = a, *sb = b;
+    return (sa->code >> 1) - (sb->code >> 1);
+}
+/**
+ * Build VLC decoding tables suitable for use with get_vlc().
+ *
+ * @param vlc            the context to be initialized
+ *
+ * @param table_nb_bits  max length of vlc codes to store directly in this table
+ *                       (Longer codes are delegated to subtables.)
+ *
+ * @param nb_codes       number of elements in codes[]
+ *
+ * @param codes          descriptions of the vlc codes
+ *                       These must be ordered such that codes going into the same subtable are contiguous.
+ *                       Sorting by VLCcode.code is sufficient, though not necessary.
+ */
+static int build_table(VLC *vlc, int table_nb_bits, int nb_codes,
+                       VLCcode *codes, int flags)
+{
+    int table_size, table_index, index, code_prefix, symbol, subtable_bits;
+    int i, j, k, n, nb, inc;
+    uint32_t code;
+    volatile VLC_TYPE (* volatile table)[2]; // the double volatile is needed to prevent an internal compiler error in gcc 4.2
+
+    table_size = 1 << table_nb_bits;
+    if (table_nb_bits > 30)
+       return AVERROR(EINVAL);
+    table_index = alloc_table(vlc, table_size, flags & INIT_VLC_USE_NEW_STATIC);
+    ff_dlog(NULL, "new table index=%d size=%d\n", table_index, table_size);
+    if (table_index < 0)
+        return table_index;
+    table = (volatile VLC_TYPE (*)[2])&vlc->table[table_index];
+
+    /* first pass: map codes and compute auxiliary table sizes */
+    for (i = 0; i < nb_codes; i++) {
+        n      = codes[i].bits;
+        code   = codes[i].code;
+        symbol = codes[i].symbol;
+        ff_dlog(NULL, "i=%d n=%d code=0x%"PRIx32"\n", i, n, code);
+        if (n <= table_nb_bits) {
+            /* no need to add another table */
+            j = code >> (32 - table_nb_bits);
+            nb = 1 << (table_nb_bits - n);
+            inc = 1;
+            if (flags & INIT_VLC_LE) {
+                j = bitswap_32(code);
+                inc = 1 << n;
+            }
+            for (k = 0; k < nb; k++) {
+                int bits = table[j][1];
+                int oldsym  = table[j][0];
+                ff_dlog(NULL, "%4x: code=%d n=%d\n", j, i, n);
+                if ((bits || oldsym) && (bits != n || oldsym != symbol)) {
+                    av_log(NULL, AV_LOG_ERROR, "incorrect codes\n");
+                    return AVERROR_INVALIDDATA;
+                }
+                table[j][1] = n; //bits
+                table[j][0] = symbol;
+                j += inc;
+            }
+        } else {
+            /* fill auxiliary table recursively */
+            n -= table_nb_bits;
+            code_prefix = code >> (32 - table_nb_bits);
+            subtable_bits = n;
+            codes[i].bits = n;
+            codes[i].code = code << table_nb_bits;
+            for (k = i+1; k < nb_codes; k++) {
+                n = codes[k].bits - table_nb_bits;
+                if (n <= 0)
+                    break;
+                code = codes[k].code;
+                if (code >> (32 - table_nb_bits) != code_prefix)
+                    break;
+                codes[k].bits = n;
+                codes[k].code = code << table_nb_bits;
+                subtable_bits = FFMAX(subtable_bits, n);
+            }
+            subtable_bits = FFMIN(subtable_bits, table_nb_bits);
+            j = (flags & INIT_VLC_LE) ? bitswap_32(code_prefix) >> (32 - table_nb_bits) : code_prefix;
+            table[j][1] = -subtable_bits;
+            ff_dlog(NULL, "%4x: n=%d (subtable)\n",
+                    j, codes[i].bits + table_nb_bits);
+            index = build_table(vlc, subtable_bits, k-i, codes+i, flags);
+            if (index < 0)
+                return index;
+            /* note: realloc has been done, so reload tables */
+            table = (volatile VLC_TYPE (*)[2])&vlc->table[table_index];
+            table[j][0] = index; //code
+            if (table[j][0] != index) {
+                avpriv_request_sample(NULL, "strange codes");
+                return AVERROR_PATCHWELCOME;
+            }
+            i = k-1;
+        }
+    }
+
+    for (i = 0; i < table_size; i++) {
+        if (table[i][1] == 0) //bits
+            table[i][0] = -1; //codes
+    }
+
+    return table_index;
+}
+
+
+/* Build VLC decoding tables suitable for use with get_vlc().
+
+   'nb_bits' sets the decoding table size (2^nb_bits) entries. The
+   bigger it is, the faster is the decoding. But it should not be too
+   big to save memory and L1 cache. '9' is a good compromise.
+
+   'nb_codes' : number of vlcs codes
+
+   'bits' : table which gives the size (in bits) of each vlc code.
+
+   'codes' : table which gives the bit pattern of of each vlc code.
+
+   'symbols' : table which gives the values to be returned from get_vlc().
+
+   'xxx_wrap' : give the number of bytes between each entry of the
+   'bits' or 'codes' tables.
+
+   'xxx_size' : gives the number of bytes of each entry of the 'bits'
+   or 'codes' tables. Currently 1,2 and 4 are supported.
+
+   'wrap' and 'size' make it possible to use any memory configuration and types
+   (byte/word/long) to store the 'bits', 'codes', and 'symbols' tables.
+
+   'use_static' should be set to 1 for tables, which should be freed
+   with av_free_static(), 0 if ff_free_vlc() will be used.
+*/
+int ff_init_vlc_sparse(VLC *vlc_arg, int nb_bits, int nb_codes,
+                       const void *bits, int bits_wrap, int bits_size,
+                       const void *codes, int codes_wrap, int codes_size,
+                       const void *symbols, int symbols_wrap, int symbols_size,
+                       int flags)
+{
+    VLCcode *buf;
+    int i, j, ret;
+    VLCcode localbuf[1500]; // the maximum currently needed is 1296 by rv34
+    VLC localvlc, *vlc;
+
+    vlc = vlc_arg;
+    vlc->bits = nb_bits;
+    if (flags & INIT_VLC_USE_NEW_STATIC) {
+        av_assert0(nb_codes + 1 <= FF_ARRAY_ELEMS(localbuf));
+        buf = localbuf;
+        localvlc = *vlc_arg;
+        vlc = &localvlc;
+        vlc->table_size = 0;
+    } else {
+        vlc->table           = NULL;
+        vlc->table_allocated = 0;
+        vlc->table_size      = 0;
+
+        buf = av_malloc_array((nb_codes + 1), sizeof(VLCcode));
+        if (!buf)
+            return AVERROR(ENOMEM);
+    }
+
+
+    av_assert0(symbols_size <= 2 || !symbols);
+    j = 0;
+#define COPY(condition)\
+    for (i = 0; i < nb_codes; i++) {                                        \
+        GET_DATA(buf[j].bits, bits, i, bits_wrap, bits_size);               \
+        if (!(condition))                                                   \
+            continue;                                                       \
+        if (buf[j].bits > 3*nb_bits || buf[j].bits>32) {                    \
+            av_log(NULL, AV_LOG_ERROR, "Too long VLC (%d) in init_vlc\n", buf[j].bits);\
+            if (!(flags & INIT_VLC_USE_NEW_STATIC))                         \
+                av_free(buf);                                               \
+            return AVERROR(EINVAL);                                         \
+        }                                                                   \
+        GET_DATA(buf[j].code, codes, i, codes_wrap, codes_size);            \
+        if (buf[j].code >= (1LL<<buf[j].bits)) {                            \
+            av_log(NULL, AV_LOG_ERROR, "Invalid code %"PRIx32" for %d in "  \
+                   "init_vlc\n", buf[j].code, i);                           \
+            if (!(flags & INIT_VLC_USE_NEW_STATIC))                         \
+                av_free(buf);                                               \
+            return AVERROR(EINVAL);                                         \
+        }                                                                   \
+        if (flags & INIT_VLC_LE)                                            \
+            buf[j].code = bitswap_32(buf[j].code);                          \
+        else                                                                \
+            buf[j].code <<= 32 - buf[j].bits;                               \
+        if (symbols)                                                        \
+            GET_DATA(buf[j].symbol, symbols, i, symbols_wrap, symbols_size) \
+        else                                                                \
+            buf[j].symbol = i;                                              \
+        j++;                                                                \
+    }
+    COPY(buf[j].bits > nb_bits);
+    // qsort is the slowest part of init_vlc, and could probably be improved or avoided
+    AV_QSORT(buf, j, struct VLCcode, compare_vlcspec);
+    COPY(buf[j].bits && buf[j].bits <= nb_bits);
+    nb_codes = j;
+
+    ret = build_table(vlc, nb_bits, nb_codes, buf, flags);
+
+    if (flags & INIT_VLC_USE_NEW_STATIC) {
+        if(vlc->table_size != vlc->table_allocated)
+            av_log(NULL, AV_LOG_ERROR, "needed %d had %d\n", vlc->table_size, vlc->table_allocated);
+
+        av_assert0(ret >= 0);
+        *vlc_arg = *vlc;
+    } else {
+        av_free(buf);
+        if (ret < 0) {
+            av_freep(&vlc->table);
+            return ret;
+        }
+    }
+    return 0;
+}
+
+
+void ff_free_vlc(VLC *vlc)
+{
+    av_freep(&vlc->table);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bitstream_filter.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bitstream_filter.c
new file mode 100644
index 000000000..ca11ed371
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bitstream_filter.c
@@ -0,0 +1,185 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <string.h>
+
+#include "avcodec.h"
+#include "libavutil/internal.h"
+#include "libavutil/mem.h"
+#include "libavutil/opt.h"
+
+#if FF_API_OLD_BSF
+FF_DISABLE_DEPRECATION_WARNINGS
+
+const AVBitStreamFilter *av_bitstream_filter_next(const AVBitStreamFilter *f)
+{
+    const AVBitStreamFilter *filter = NULL;
+    void *opaque = NULL;
+
+    while (filter != f)
+        filter = av_bsf_iterate(&opaque);
+
+    return av_bsf_iterate(&opaque);
+}
+
+void av_register_bitstream_filter(AVBitStreamFilter *bsf)
+{
+}
+
+typedef struct BSFCompatContext {
+    AVBSFContext *ctx;
+    int extradata_updated;
+} BSFCompatContext;
+
+AVBitStreamFilterContext *av_bitstream_filter_init(const char *name)
+{
+    AVBitStreamFilterContext *ctx = NULL;
+    BSFCompatContext         *priv = NULL;
+    const AVBitStreamFilter *bsf;
+
+    bsf = av_bsf_get_by_name(name);
+    if (!bsf)
+        return NULL;
+
+    ctx = av_mallocz(sizeof(*ctx));
+    if (!ctx)
+        return NULL;
+
+    priv = av_mallocz(sizeof(*priv));
+    if (!priv)
+        goto fail;
+
+
+    ctx->filter    = bsf;
+    ctx->priv_data = priv;
+
+    return ctx;
+
+fail:
+    if (priv)
+        av_bsf_free(&priv->ctx);
+    av_freep(&priv);
+    av_freep(&ctx);
+    return NULL;
+}
+
+void av_bitstream_filter_close(AVBitStreamFilterContext *bsfc)
+{
+    BSFCompatContext *priv;
+
+    if (!bsfc)
+        return;
+
+    priv = bsfc->priv_data;
+
+    av_bsf_free(&priv->ctx);
+    av_freep(&bsfc->priv_data);
+    av_free(bsfc);
+}
+
+int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
+                               AVCodecContext *avctx, const char *args,
+                               uint8_t **poutbuf, int *poutbuf_size,
+                               const uint8_t *buf, int buf_size, int keyframe)
+{
+    BSFCompatContext *priv = bsfc->priv_data;
+    AVPacket pkt = { 0 };
+    int ret;
+
+    if (!priv->ctx) {
+        ret = av_bsf_alloc(bsfc->filter, &priv->ctx);
+        if (ret < 0)
+            return ret;
+
+        ret = avcodec_parameters_from_context(priv->ctx->par_in, avctx);
+        if (ret < 0)
+            return ret;
+
+        priv->ctx->time_base_in = avctx->time_base;
+
+        if (bsfc->args && bsfc->filter->priv_class) {
+            const AVOption *opt = av_opt_next(priv->ctx->priv_data, NULL);
+            const char * shorthand[2] = {NULL};
+
+            if (opt)
+                shorthand[0] = opt->name;
+
+            ret = av_opt_set_from_string(priv->ctx->priv_data, bsfc->args, shorthand, "=", ":");
+            if (ret < 0)
+                return ret;
+        }
+
+        ret = av_bsf_init(priv->ctx);
+        if (ret < 0)
+            return ret;
+    }
+
+    pkt.data = (uint8_t *)buf;
+    pkt.size = buf_size;
+
+    ret = av_bsf_send_packet(priv->ctx, &pkt);
+    if (ret < 0)
+        return ret;
+
+    *poutbuf      = NULL;
+    *poutbuf_size = 0;
+
+    ret = av_bsf_receive_packet(priv->ctx, &pkt);
+    if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
+        return 0;
+    else if (ret < 0)
+        return ret;
+
+    *poutbuf = av_malloc(pkt.size + AV_INPUT_BUFFER_PADDING_SIZE);
+    if (!*poutbuf) {
+        av_packet_unref(&pkt);
+        return AVERROR(ENOMEM);
+    }
+
+    *poutbuf_size = pkt.size;
+    memcpy(*poutbuf, pkt.data, pkt.size);
+
+    av_packet_unref(&pkt);
+
+    /* drain all the remaining packets we cannot return */
+    while (ret >= 0) {
+        ret = av_bsf_receive_packet(priv->ctx, &pkt);
+        av_packet_unref(&pkt);
+    }
+
+    if (!priv->extradata_updated) {
+        /* update extradata in avctx from the output codec parameters */
+        if (priv->ctx->par_out->extradata_size && (!args || !strstr(args, "private_spspps_buf"))) {
+            av_freep(&avctx->extradata);
+            avctx->extradata_size = 0;
+            avctx->extradata = av_mallocz(priv->ctx->par_out->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+            if (!avctx->extradata)
+                return AVERROR(ENOMEM);
+            memcpy(avctx->extradata, priv->ctx->par_out->extradata, priv->ctx->par_out->extradata_size);
+            avctx->extradata_size = priv->ctx->par_out->extradata_size;
+        }
+
+        priv->extradata_updated = 1;
+    }
+
+    return 1;
+}
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bitstream_filters.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bitstream_filters.c
new file mode 100644
index 000000000..463003966
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bitstream_filters.c
@@ -0,0 +1,114 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/common.h"
+#include "libavutil/log.h"
+
+#include "avcodec.h"
+#include "bsf.h"
+
+extern const AVBitStreamFilter ff_aac_adtstoasc_bsf;
+extern const AVBitStreamFilter ff_av1_frame_split_bsf;
+extern const AVBitStreamFilter ff_av1_metadata_bsf;
+extern const AVBitStreamFilter ff_chomp_bsf;
+extern const AVBitStreamFilter ff_dump_extradata_bsf;
+extern const AVBitStreamFilter ff_dca_core_bsf;
+extern const AVBitStreamFilter ff_eac3_core_bsf;
+extern const AVBitStreamFilter ff_extract_extradata_bsf;
+extern const AVBitStreamFilter ff_filter_units_bsf;
+extern const AVBitStreamFilter ff_h264_metadata_bsf;
+extern const AVBitStreamFilter ff_h264_mp4toannexb_bsf;
+extern const AVBitStreamFilter ff_h264_redundant_pps_bsf;
+extern const AVBitStreamFilter ff_hapqa_extract_bsf;
+extern const AVBitStreamFilter ff_hevc_metadata_bsf;
+extern const AVBitStreamFilter ff_hevc_mp4toannexb_bsf;
+extern const AVBitStreamFilter ff_imx_dump_header_bsf;
+extern const AVBitStreamFilter ff_mjpeg2jpeg_bsf;
+extern const AVBitStreamFilter ff_mjpega_dump_header_bsf;
+extern const AVBitStreamFilter ff_mp3_header_decompress_bsf;
+extern const AVBitStreamFilter ff_mpeg2_metadata_bsf;
+extern const AVBitStreamFilter ff_mpeg4_unpack_bframes_bsf;
+extern const AVBitStreamFilter ff_mov2textsub_bsf;
+extern const AVBitStreamFilter ff_noise_bsf;
+extern const AVBitStreamFilter ff_null_bsf;
+extern const AVBitStreamFilter ff_prores_metadata_bsf;
+extern const AVBitStreamFilter ff_remove_extradata_bsf;
+extern const AVBitStreamFilter ff_text2movsub_bsf;
+extern const AVBitStreamFilter ff_trace_headers_bsf;
+extern const AVBitStreamFilter ff_truehd_core_bsf;
+extern const AVBitStreamFilter ff_vp9_metadata_bsf;
+extern const AVBitStreamFilter ff_vp9_raw_reorder_bsf;
+extern const AVBitStreamFilter ff_vp9_superframe_bsf;
+extern const AVBitStreamFilter ff_vp9_superframe_split_bsf;
+
+#include "libavcodec/bsf_list.c"
+
+const AVBitStreamFilter *av_bsf_iterate(void **opaque)
+{
+    uintptr_t i = (uintptr_t)*opaque;
+    const AVBitStreamFilter *f = bitstream_filters[i];
+
+    if (f)
+        *opaque = (void*)(i + 1);
+
+    return f;
+}
+
+#if FF_API_NEXT
+const AVBitStreamFilter *av_bsf_next(void **opaque) {
+    return av_bsf_iterate(opaque);
+}
+#endif
+
+const AVBitStreamFilter *av_bsf_get_by_name(const char *name)
+{
+    const AVBitStreamFilter *f = NULL;
+    void *i = 0;
+
+    if (!name)
+        return NULL;
+
+    while ((f = av_bsf_iterate(&i))) {
+        if (!strcmp(f->name, name))
+            return f;
+    }
+
+    return NULL;
+}
+
+const AVClass *ff_bsf_child_class_next(const AVClass *prev)
+{
+    const AVBitStreamFilter *f = NULL;
+    void *i = 0;
+
+    /* find the filter that corresponds to prev */
+    while (prev && (f = av_bsf_iterate(&i))) {
+        if (f->priv_class == prev) {
+            break;
+        }
+    }
+
+    /* find next filter with priv options */
+    while ((f = av_bsf_iterate(&i))) {
+        if (f->priv_class)
+            return f->priv_class;
+    }
+    return NULL;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/blockdsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/blockdsp.c
new file mode 100644
index 000000000..c7efe7e77
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/blockdsp.c
@@ -0,0 +1,78 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "avcodec.h"
+#include "blockdsp.h"
+#include "version.h"
+
+static void clear_block_c(int16_t *block)
+{
+    memset(block, 0, sizeof(int16_t) * 64);
+}
+
+static void clear_blocks_c(int16_t *blocks)
+{
+    memset(blocks, 0, sizeof(int16_t) * 6 * 64);
+}
+
+static void fill_block16_c(uint8_t *block, uint8_t value, ptrdiff_t line_size,
+                           int h)
+{
+    int i;
+
+    for (i = 0; i < h; i++) {
+        memset(block, value, 16);
+        block += line_size;
+    }
+}
+
+static void fill_block8_c(uint8_t *block, uint8_t value, ptrdiff_t line_size,
+                          int h)
+{
+    int i;
+
+    for (i = 0; i < h; i++) {
+        memset(block, value, 8);
+        block += line_size;
+    }
+}
+
+av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx)
+{
+    c->clear_block  = clear_block_c;
+    c->clear_blocks = clear_blocks_c;
+
+    c->fill_block_tab[0] = fill_block16_c;
+    c->fill_block_tab[1] = fill_block8_c;
+
+    if (ARCH_ALPHA)
+        ff_blockdsp_init_alpha(c);
+    if (ARCH_ARM)
+        ff_blockdsp_init_arm(c);
+    if (ARCH_PPC)
+        ff_blockdsp_init_ppc(c);
+    if (ARCH_X86)
+        ff_blockdsp_init_x86(c, avctx);
+    if (ARCH_MIPS)
+        ff_blockdsp_init_mips(c);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/blockdsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/blockdsp.h
new file mode 100644
index 000000000..26fc2ea13
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/blockdsp.h
@@ -0,0 +1,50 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_BLOCKDSP_H
+#define AVCODEC_BLOCKDSP_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "avcodec.h"
+#include "version.h"
+
+/* add and put pixel (decoding)
+ * Block sizes for op_pixels_func are 8x4,8x8 16x8 16x16.
+ * h for op_pixels_func is limited to { width / 2, width },
+ * but never larger than 16 and never smaller than 4. */
+typedef void (*op_fill_func)(uint8_t *block /* align width (8 or 16) */,
+                             uint8_t value, ptrdiff_t line_size, int h);
+
+typedef struct BlockDSPContext {
+    void (*clear_block)(int16_t *block /* align 32 */);
+    void (*clear_blocks)(int16_t *blocks /* align 32 */);
+
+    op_fill_func fill_block_tab[2];
+} BlockDSPContext;
+
+void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx);
+
+void ff_blockdsp_init_alpha(BlockDSPContext *c);
+void ff_blockdsp_init_arm(BlockDSPContext *c);
+void ff_blockdsp_init_ppc(BlockDSPContext *c);
+void ff_blockdsp_init_x86(BlockDSPContext *c, AVCodecContext *avctx);
+void ff_blockdsp_init_mips(BlockDSPContext *c);
+
+#endif /* AVCODEC_BLOCKDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bsf.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bsf.c
new file mode 100644
index 000000000..508130760
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bsf.c
@@ -0,0 +1,567 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <string.h>
+
+#include "libavutil/log.h"
+#include "libavutil/mem.h"
+#include "libavutil/opt.h"
+#include "libavutil/avstring.h"
+#include "libavutil/bprint.h"
+
+#include "avcodec.h"
+#include "bsf.h"
+
+struct AVBSFInternal {
+    AVPacket *buffer_pkt;
+    int eof;
+};
+
+void av_bsf_free(AVBSFContext **pctx)
+{
+    AVBSFContext *ctx;
+
+    if (!pctx || !*pctx)
+        return;
+    ctx = *pctx;
+
+    if (ctx->filter->close)
+        ctx->filter->close(ctx);
+    if (ctx->filter->priv_class && ctx->priv_data)
+        av_opt_free(ctx->priv_data);
+
+    av_opt_free(ctx);
+
+    av_packet_free(&ctx->internal->buffer_pkt);
+    av_freep(&ctx->internal);
+    av_freep(&ctx->priv_data);
+
+    avcodec_parameters_free(&ctx->par_in);
+    avcodec_parameters_free(&ctx->par_out);
+
+    av_freep(pctx);
+}
+
+static void *bsf_child_next(void *obj, void *prev)
+{
+    AVBSFContext *ctx = obj;
+    if (!prev && ctx->filter->priv_class)
+        return ctx->priv_data;
+    return NULL;
+}
+
+static const AVClass bsf_class = {
+    .class_name       = "AVBSFContext",
+    .item_name        = av_default_item_name,
+    .version          = LIBAVUTIL_VERSION_INT,
+    .child_next       = bsf_child_next,
+    .child_class_next = ff_bsf_child_class_next,
+};
+
+const AVClass *av_bsf_get_class(void)
+{
+    return &bsf_class;
+}
+
+int av_bsf_alloc(const AVBitStreamFilter *filter, AVBSFContext **pctx)
+{
+    AVBSFContext *ctx;
+    int ret;
+
+    ctx = av_mallocz(sizeof(*ctx));
+    if (!ctx)
+        return AVERROR(ENOMEM);
+
+    ctx->av_class = &bsf_class;
+    ctx->filter   = filter;
+
+    ctx->par_in  = avcodec_parameters_alloc();
+    ctx->par_out = avcodec_parameters_alloc();
+    if (!ctx->par_in || !ctx->par_out) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    ctx->internal = av_mallocz(sizeof(*ctx->internal));
+    if (!ctx->internal) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    ctx->internal->buffer_pkt = av_packet_alloc();
+    if (!ctx->internal->buffer_pkt) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    av_opt_set_defaults(ctx);
+
+    /* allocate priv data and init private options */
+    if (filter->priv_data_size) {
+        ctx->priv_data = av_mallocz(filter->priv_data_size);
+        if (!ctx->priv_data) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+        if (filter->priv_class) {
+            *(const AVClass **)ctx->priv_data = filter->priv_class;
+            av_opt_set_defaults(ctx->priv_data);
+        }
+    }
+
+    *pctx = ctx;
+    return 0;
+fail:
+    av_bsf_free(&ctx);
+    return ret;
+}
+
+int av_bsf_init(AVBSFContext *ctx)
+{
+    int ret, i;
+
+    /* check that the codec is supported */
+    if (ctx->filter->codec_ids) {
+        for (i = 0; ctx->filter->codec_ids[i] != AV_CODEC_ID_NONE; i++)
+            if (ctx->par_in->codec_id == ctx->filter->codec_ids[i])
+                break;
+        if (ctx->filter->codec_ids[i] == AV_CODEC_ID_NONE) {
+            const AVCodecDescriptor *desc = avcodec_descriptor_get(ctx->par_in->codec_id);
+            av_log(ctx, AV_LOG_ERROR, "Codec '%s' (%d) is not supported by the "
+                   "bitstream filter '%s'. Supported codecs are: ",
+                   desc ? desc->name : "unknown", ctx->par_in->codec_id, ctx->filter->name);
+            for (i = 0; ctx->filter->codec_ids[i] != AV_CODEC_ID_NONE; i++) {
+                desc = avcodec_descriptor_get(ctx->filter->codec_ids[i]);
+                av_log(ctx, AV_LOG_ERROR, "%s (%d) ",
+                       desc ? desc->name : "unknown", ctx->filter->codec_ids[i]);
+            }
+            av_log(ctx, AV_LOG_ERROR, "\n");
+            return AVERROR(EINVAL);
+        }
+    }
+
+    /* initialize output parameters to be the same as input
+     * init below might overwrite that */
+    ret = avcodec_parameters_copy(ctx->par_out, ctx->par_in);
+    if (ret < 0)
+        return ret;
+
+    ctx->time_base_out = ctx->time_base_in;
+
+    if (ctx->filter->init) {
+        ret = ctx->filter->init(ctx);
+        if (ret < 0)
+            return ret;
+    }
+
+    return 0;
+}
+
+void av_bsf_flush(AVBSFContext *ctx)
+{
+    ctx->internal->eof = 0;
+
+    av_packet_unref(ctx->internal->buffer_pkt);
+
+    if (ctx->filter->flush)
+        ctx->filter->flush(ctx);
+}
+
+int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt)
+{
+    int ret;
+
+    if (!pkt || (!pkt->data && !pkt->side_data_elems)) {
+        ctx->internal->eof = 1;
+        return 0;
+    }
+
+    if (ctx->internal->eof) {
+        av_log(ctx, AV_LOG_ERROR, "A non-NULL packet sent after an EOF.\n");
+        return AVERROR(EINVAL);
+    }
+
+    if (ctx->internal->buffer_pkt->data ||
+        ctx->internal->buffer_pkt->side_data_elems)
+        return AVERROR(EAGAIN);
+
+    ret = av_packet_make_refcounted(pkt);
+    if (ret < 0)
+        return ret;
+    av_packet_move_ref(ctx->internal->buffer_pkt, pkt);
+
+    return 0;
+}
+
+int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt)
+{
+    return ctx->filter->filter(ctx, pkt);
+}
+
+int ff_bsf_get_packet(AVBSFContext *ctx, AVPacket **pkt)
+{
+    AVBSFInternal *in = ctx->internal;
+    AVPacket *tmp_pkt;
+
+    if (in->eof)
+        return AVERROR_EOF;
+
+    if (!ctx->internal->buffer_pkt->data &&
+        !ctx->internal->buffer_pkt->side_data_elems)
+        return AVERROR(EAGAIN);
+
+    tmp_pkt = av_packet_alloc();
+    if (!tmp_pkt)
+        return AVERROR(ENOMEM);
+
+    *pkt = ctx->internal->buffer_pkt;
+    ctx->internal->buffer_pkt = tmp_pkt;
+
+    return 0;
+}
+
+int ff_bsf_get_packet_ref(AVBSFContext *ctx, AVPacket *pkt)
+{
+    AVBSFInternal *in = ctx->internal;
+
+    if (in->eof)
+        return AVERROR_EOF;
+
+    if (!ctx->internal->buffer_pkt->data &&
+        !ctx->internal->buffer_pkt->side_data_elems)
+        return AVERROR(EAGAIN);
+
+    av_packet_move_ref(pkt, ctx->internal->buffer_pkt);
+
+    return 0;
+}
+
+typedef struct BSFListContext {
+    const AVClass *class;
+
+    AVBSFContext **bsfs;
+    int nb_bsfs;
+
+    unsigned idx;           // index of currently processed BSF
+    unsigned flushed_idx;   // index of BSF being flushed
+
+    char * item_name;
+} BSFListContext;
+
+
+static int bsf_list_init(AVBSFContext *bsf)
+{
+    BSFListContext *lst = bsf->priv_data;
+    int ret, i;
+    const AVCodecParameters *cod_par = bsf->par_in;
+    AVRational tb = bsf->time_base_in;
+
+    for (i = 0; i < lst->nb_bsfs; ++i) {
+        ret = avcodec_parameters_copy(lst->bsfs[i]->par_in, cod_par);
+        if (ret < 0)
+            goto fail;
+
+        lst->bsfs[i]->time_base_in = tb;
+
+        ret = av_bsf_init(lst->bsfs[i]);
+        if (ret < 0)
+            goto fail;
+
+        cod_par = lst->bsfs[i]->par_out;
+        tb = lst->bsfs[i]->time_base_out;
+    }
+
+    bsf->time_base_out = tb;
+    ret = avcodec_parameters_copy(bsf->par_out, cod_par);
+
+fail:
+    return ret;
+}
+
+static int bsf_list_filter(AVBSFContext *bsf, AVPacket *out)
+{
+    BSFListContext *lst = bsf->priv_data;
+    int ret;
+
+    if (!lst->nb_bsfs)
+        return ff_bsf_get_packet_ref(bsf, out);
+
+    while (1) {
+        if (lst->idx > lst->flushed_idx) {
+            ret = av_bsf_receive_packet(lst->bsfs[lst->idx-1], out);
+            if (ret == AVERROR(EAGAIN)) {
+                /* no more packets from idx-1, try with previous */
+                ret = 0;
+                lst->idx--;
+                continue;
+            } else if (ret == AVERROR_EOF) {
+                /* filter idx-1 is done, continue with idx...nb_bsfs */
+                lst->flushed_idx = lst->idx;
+                continue;
+            }else if (ret < 0) {
+                /* filtering error */
+                break;
+            }
+        } else {
+            ret = ff_bsf_get_packet_ref(bsf, out);
+            if (ret == AVERROR_EOF) {
+                lst->idx = lst->flushed_idx;
+            } else if (ret < 0)
+                break;
+        }
+
+        if (lst->idx < lst->nb_bsfs) {
+            AVPacket *pkt;
+            if (ret == AVERROR_EOF && lst->idx == lst->flushed_idx) {
+                /* ff_bsf_get_packet_ref returned EOF and idx is first
+                 * filter of yet not flushed filter chain */
+                pkt = NULL;
+            } else {
+                pkt = out;
+            }
+            ret = av_bsf_send_packet(lst->bsfs[lst->idx], pkt);
+            if (ret < 0)
+                break;
+            lst->idx++;
+        } else {
+            /* The end of filter chain, break to return result */
+            break;
+        }
+    }
+
+    if (ret < 0)
+        av_packet_unref(out);
+
+    return ret;
+}
+
+static void bsf_list_flush(AVBSFContext *bsf)
+{
+    BSFListContext *lst = bsf->priv_data;
+
+    for (int i = 0; i < lst->nb_bsfs; i++)
+        av_bsf_flush(lst->bsfs[i]);
+    lst->idx = lst->flushed_idx = 0;
+}
+
+static void bsf_list_close(AVBSFContext *bsf)
+{
+    BSFListContext *lst = bsf->priv_data;
+    int i;
+
+    for (i = 0; i < lst->nb_bsfs; ++i)
+        av_bsf_free(&lst->bsfs[i]);
+    av_freep(&lst->bsfs);
+    av_freep(&lst->item_name);
+}
+
+static const char *bsf_list_item_name(void *ctx)
+{
+    static const char *null_filter_name = "null";
+    AVBSFContext *bsf_ctx = ctx;
+    BSFListContext *lst = bsf_ctx->priv_data;
+
+    if (!lst->nb_bsfs)
+        return null_filter_name;
+
+    if (!lst->item_name) {
+        int i;
+        AVBPrint bp;
+        av_bprint_init(&bp, 16, 128);
+
+        av_bprintf(&bp, "bsf_list(");
+        for (i = 0; i < lst->nb_bsfs; i++)
+            av_bprintf(&bp, i ? ",%s" : "%s", lst->bsfs[i]->filter->name);
+        av_bprintf(&bp, ")");
+
+        av_bprint_finalize(&bp, &lst->item_name);
+    }
+
+    return lst->item_name;
+}
+
+static const AVClass bsf_list_class = {
+        .class_name = "bsf_list",
+        .item_name  = bsf_list_item_name,
+        .version    = LIBAVUTIL_VERSION_INT,
+};
+
+const AVBitStreamFilter ff_list_bsf = {
+        .name           = "bsf_list",
+        .priv_data_size = sizeof(BSFListContext),
+        .priv_class     = &bsf_list_class,
+        .init           = bsf_list_init,
+        .filter         = bsf_list_filter,
+        .flush          = bsf_list_flush,
+        .close          = bsf_list_close,
+};
+
+struct AVBSFList {
+    AVBSFContext **bsfs;
+    int nb_bsfs;
+};
+
+AVBSFList *av_bsf_list_alloc(void)
+{
+    return av_mallocz(sizeof(AVBSFList));
+}
+
+void av_bsf_list_free(AVBSFList **lst)
+{
+    int i;
+
+    if (!*lst)
+        return;
+
+    for (i = 0; i < (*lst)->nb_bsfs; ++i)
+        av_bsf_free(&(*lst)->bsfs[i]);
+    av_free((*lst)->bsfs);
+    av_freep(lst);
+}
+
+int av_bsf_list_append(AVBSFList *lst, AVBSFContext *bsf)
+{
+    return av_dynarray_add_nofree(&lst->bsfs, &lst->nb_bsfs, bsf);
+}
+
+int av_bsf_list_append2(AVBSFList *lst, const char *bsf_name, AVDictionary ** options)
+{
+    int ret;
+    const AVBitStreamFilter *filter;
+    AVBSFContext *bsf;
+
+    filter = av_bsf_get_by_name(bsf_name);
+    if (!filter)
+        return AVERROR_BSF_NOT_FOUND;
+
+    ret = av_bsf_alloc(filter, &bsf);
+    if (ret < 0)
+        return ret;
+
+    if (options) {
+        ret = av_opt_set_dict2(bsf, options, AV_OPT_SEARCH_CHILDREN);
+        if (ret < 0)
+            goto end;
+    }
+
+    ret = av_bsf_list_append(lst, bsf);
+
+end:
+    if (ret < 0)
+        av_bsf_free(&bsf);
+
+    return ret;
+}
+
+int av_bsf_list_finalize(AVBSFList **lst, AVBSFContext **bsf)
+{
+    int ret = 0;
+    BSFListContext *ctx;
+
+    if ((*lst)->nb_bsfs == 1) {
+        *bsf = (*lst)->bsfs[0];
+        av_freep(&(*lst)->bsfs);
+        (*lst)->nb_bsfs = 0;
+        goto end;
+    }
+
+    ret = av_bsf_alloc(&ff_list_bsf, bsf);
+    if (ret < 0)
+        return ret;
+
+    ctx = (*bsf)->priv_data;
+
+    ctx->bsfs = (*lst)->bsfs;
+    ctx->nb_bsfs = (*lst)->nb_bsfs;
+
+end:
+    av_freep(lst);
+    return ret;
+}
+
+static int bsf_parse_single(const char *str, AVBSFList *bsf_lst)
+{
+    char *bsf_name, *bsf_options_str, *buf;
+    AVDictionary *bsf_options = NULL;
+    int ret = 0;
+
+    if (!(buf = av_strdup(str)))
+        return AVERROR(ENOMEM);
+
+    bsf_name = av_strtok(buf, "=", &bsf_options_str);
+    if (!bsf_name) {
+        ret = AVERROR(EINVAL);
+        goto end;
+    }
+
+    if (bsf_options_str) {
+        ret = av_dict_parse_string(&bsf_options, bsf_options_str, "=", ":", 0);
+        if (ret < 0)
+            goto end;
+    }
+
+    ret = av_bsf_list_append2(bsf_lst, bsf_name, &bsf_options);
+
+    av_dict_free(&bsf_options);
+end:
+    av_free(buf);
+    return ret;
+}
+
+int av_bsf_list_parse_str(const char *str, AVBSFContext **bsf_lst)
+{
+    AVBSFList *lst;
+    char *bsf_str, *buf, *dup, *saveptr;
+    int ret;
+
+    if (!str)
+        return av_bsf_get_null_filter(bsf_lst);
+
+    lst = av_bsf_list_alloc();
+    if (!lst)
+        return AVERROR(ENOMEM);
+
+    if (!(dup = buf = av_strdup(str))) {
+        ret = AVERROR(ENOMEM);
+        goto end;
+    }
+
+    while (1) {
+        bsf_str = av_strtok(buf, ",", &saveptr);
+        if (!bsf_str)
+            break;
+
+        ret = bsf_parse_single(bsf_str, lst);
+        if (ret < 0)
+            goto end;
+
+        buf = NULL;
+    }
+
+    ret = av_bsf_list_finalize(&lst, bsf_lst);
+end:
+    if (ret < 0)
+        av_bsf_list_free(&lst);
+    av_free(dup);
+    return ret;
+}
+
+int av_bsf_get_null_filter(AVBSFContext **bsf)
+{
+    return av_bsf_alloc(&ff_list_bsf, bsf);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bsf.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bsf.h
new file mode 100644
index 000000000..af035eee4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bsf.h
@@ -0,0 +1,44 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_BSF_H
+#define AVCODEC_BSF_H
+
+#include "avcodec.h"
+
+/**
+ * Called by the bitstream filters to get the next packet for filtering.
+ * The filter is responsible for either freeing the packet or passing it to the
+ * caller.
+ */
+int ff_bsf_get_packet(AVBSFContext *ctx, AVPacket **pkt);
+
+/**
+ * Called by bitstream filters to get packet for filtering.
+ * The reference to packet is moved to provided packet structure.
+ *
+ * @param ctx pointer to AVBSFContext of filter
+ * @param pkt pointer to packet to move reference to
+ *
+ * @return 0>= on success, negative AVERROR in case of failure
+ */
+int ff_bsf_get_packet_ref(AVBSFContext *ctx, AVPacket *pkt);
+
+const AVClass *ff_bsf_child_class_next(const AVClass *prev);
+
+#endif /* AVCODEC_BSF_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bsf_list.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bsf_list.c
new file mode 100644
index 000000000..d31ece942
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bsf_list.c
@@ -0,0 +1,3 @@
+static const AVBitStreamFilter * const bitstream_filters[] = {
+    &ff_null_bsf,
+    NULL };
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bytestream.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bytestream.h
new file mode 100644
index 000000000..7be7fc22f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/bytestream.h
@@ -0,0 +1,376 @@
+/*
+ * Bytestream functions
+ * copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
+ * Copyright (c) 2012 Aneesh Dogra (lionaneesh) <lionaneesh@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_BYTESTREAM_H
+#define AVCODEC_BYTESTREAM_H
+
+#include <stdint.h>
+#include <string.h>
+
+#include "libavutil/avassert.h"
+#include "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
+
+typedef struct GetByteContext {
+    const uint8_t *buffer, *buffer_end, *buffer_start;
+} GetByteContext;
+
+typedef struct PutByteContext {
+    uint8_t *buffer, *buffer_end, *buffer_start;
+    int eof;
+} PutByteContext;
+
+#define DEF(type, name, bytes, read, write)                                  \
+static av_always_inline type bytestream_get_ ## name(const uint8_t **b)        \
+{                                                                              \
+    (*b) += bytes;                                                             \
+    return read(*b - bytes);                                                   \
+}                                                                              \
+static av_always_inline void bytestream_put_ ## name(uint8_t **b,              \
+                                                     const type value)         \
+{                                                                              \
+    write(*b, value);                                                          \
+    (*b) += bytes;                                                             \
+}                                                                              \
+static av_always_inline void bytestream2_put_ ## name ## u(PutByteContext *p,  \
+                                                           const type value)   \
+{                                                                              \
+    bytestream_put_ ## name(&p->buffer, value);                                \
+}                                                                              \
+static av_always_inline void bytestream2_put_ ## name(PutByteContext *p,       \
+                                                      const type value)        \
+{                                                                              \
+    if (!p->eof && (p->buffer_end - p->buffer >= bytes)) {                     \
+        write(p->buffer, value);                                               \
+        p->buffer += bytes;                                                    \
+    } else                                                                     \
+        p->eof = 1;                                                            \
+}                                                                              \
+static av_always_inline type bytestream2_get_ ## name ## u(GetByteContext *g)  \
+{                                                                              \
+    return bytestream_get_ ## name(&g->buffer);                                \
+}                                                                              \
+static av_always_inline type bytestream2_get_ ## name(GetByteContext *g)       \
+{                                                                              \
+    if (g->buffer_end - g->buffer < bytes) {                                   \
+        g->buffer = g->buffer_end;                                             \
+        return 0;                                                              \
+    }                                                                          \
+    return bytestream2_get_ ## name ## u(g);                                   \
+}                                                                              \
+static av_always_inline type bytestream2_peek_ ## name(GetByteContext *g)      \
+{                                                                              \
+    if (g->buffer_end - g->buffer < bytes)                                     \
+        return 0;                                                              \
+    return read(g->buffer);                                                    \
+}
+
+DEF(uint64_t,     le64, 8, AV_RL64, AV_WL64)
+DEF(unsigned int, le32, 4, AV_RL32, AV_WL32)
+DEF(unsigned int, le24, 3, AV_RL24, AV_WL24)
+DEF(unsigned int, le16, 2, AV_RL16, AV_WL16)
+DEF(uint64_t,     be64, 8, AV_RB64, AV_WB64)
+DEF(unsigned int, be32, 4, AV_RB32, AV_WB32)
+DEF(unsigned int, be24, 3, AV_RB24, AV_WB24)
+DEF(unsigned int, be16, 2, AV_RB16, AV_WB16)
+DEF(unsigned int, byte, 1, AV_RB8 , AV_WB8)
+
+#if AV_HAVE_BIGENDIAN
+#   define bytestream2_get_ne16  bytestream2_get_be16
+#   define bytestream2_get_ne24  bytestream2_get_be24
+#   define bytestream2_get_ne32  bytestream2_get_be32
+#   define bytestream2_get_ne64  bytestream2_get_be64
+#   define bytestream2_get_ne16u bytestream2_get_be16u
+#   define bytestream2_get_ne24u bytestream2_get_be24u
+#   define bytestream2_get_ne32u bytestream2_get_be32u
+#   define bytestream2_get_ne64u bytestream2_get_be64u
+#   define bytestream2_put_ne16  bytestream2_put_be16
+#   define bytestream2_put_ne24  bytestream2_put_be24
+#   define bytestream2_put_ne32  bytestream2_put_be32
+#   define bytestream2_put_ne64  bytestream2_put_be64
+#   define bytestream2_peek_ne16 bytestream2_peek_be16
+#   define bytestream2_peek_ne24 bytestream2_peek_be24
+#   define bytestream2_peek_ne32 bytestream2_peek_be32
+#   define bytestream2_peek_ne64 bytestream2_peek_be64
+#else
+#   define bytestream2_get_ne16  bytestream2_get_le16
+#   define bytestream2_get_ne24  bytestream2_get_le24
+#   define bytestream2_get_ne32  bytestream2_get_le32
+#   define bytestream2_get_ne64  bytestream2_get_le64
+#   define bytestream2_get_ne16u bytestream2_get_le16u
+#   define bytestream2_get_ne24u bytestream2_get_le24u
+#   define bytestream2_get_ne32u bytestream2_get_le32u
+#   define bytestream2_get_ne64u bytestream2_get_le64u
+#   define bytestream2_put_ne16  bytestream2_put_le16
+#   define bytestream2_put_ne24  bytestream2_put_le24
+#   define bytestream2_put_ne32  bytestream2_put_le32
+#   define bytestream2_put_ne64  bytestream2_put_le64
+#   define bytestream2_peek_ne16 bytestream2_peek_le16
+#   define bytestream2_peek_ne24 bytestream2_peek_le24
+#   define bytestream2_peek_ne32 bytestream2_peek_le32
+#   define bytestream2_peek_ne64 bytestream2_peek_le64
+#endif
+
+static av_always_inline void bytestream2_init(GetByteContext *g,
+                                              const uint8_t *buf,
+                                              int buf_size)
+{
+    av_assert0(buf_size >= 0);
+    g->buffer       = buf;
+    g->buffer_start = buf;
+    g->buffer_end   = buf + buf_size;
+}
+
+static av_always_inline void bytestream2_init_writer(PutByteContext *p,
+                                                     uint8_t *buf,
+                                                     int buf_size)
+{
+    av_assert0(buf_size >= 0);
+    p->buffer       = buf;
+    p->buffer_start = buf;
+    p->buffer_end   = buf + buf_size;
+    p->eof          = 0;
+}
+
+static av_always_inline unsigned int bytestream2_get_bytes_left(GetByteContext *g)
+{
+    return g->buffer_end - g->buffer;
+}
+
+static av_always_inline unsigned int bytestream2_get_bytes_left_p(PutByteContext *p)
+{
+    return p->buffer_end - p->buffer;
+}
+
+static av_always_inline void bytestream2_skip(GetByteContext *g,
+                                              unsigned int size)
+{
+    g->buffer += FFMIN(g->buffer_end - g->buffer, size);
+}
+
+static av_always_inline void bytestream2_skipu(GetByteContext *g,
+                                               unsigned int size)
+{
+    g->buffer += size;
+}
+
+static av_always_inline void bytestream2_skip_p(PutByteContext *p,
+                                                unsigned int size)
+{
+    int size2;
+    if (p->eof)
+        return;
+    size2 = FFMIN(p->buffer_end - p->buffer, size);
+    if (size2 != size)
+        p->eof = 1;
+    p->buffer += size2;
+}
+
+static av_always_inline int bytestream2_tell(GetByteContext *g)
+{
+    return (int)(g->buffer - g->buffer_start);
+}
+
+static av_always_inline int bytestream2_tell_p(PutByteContext *p)
+{
+    return (int)(p->buffer - p->buffer_start);
+}
+
+static av_always_inline int bytestream2_size(GetByteContext *g)
+{
+    return (int)(g->buffer_end - g->buffer_start);
+}
+
+static av_always_inline int bytestream2_size_p(PutByteContext *p)
+{
+    return (int)(p->buffer_end - p->buffer_start);
+}
+
+static av_always_inline int bytestream2_seek(GetByteContext *g,
+                                             int offset,
+                                             int whence)
+{
+    switch (whence) {
+    case SEEK_CUR:
+        offset     = av_clip(offset, -(g->buffer - g->buffer_start),
+                             g->buffer_end - g->buffer);
+        g->buffer += offset;
+        break;
+    case SEEK_END:
+        offset    = av_clip(offset, -(g->buffer_end - g->buffer_start), 0);
+        g->buffer = g->buffer_end + offset;
+        break;
+    case SEEK_SET:
+        offset    = av_clip(offset, 0, g->buffer_end - g->buffer_start);
+        g->buffer = g->buffer_start + offset;
+        break;
+    default:
+        return AVERROR(EINVAL);
+    }
+    return bytestream2_tell(g);
+}
+
+static av_always_inline int bytestream2_seek_p(PutByteContext *p,
+                                               int offset,
+                                               int whence)
+{
+    p->eof = 0;
+    switch (whence) {
+    case SEEK_CUR:
+        if (p->buffer_end - p->buffer < offset)
+            p->eof = 1;
+        offset     = av_clip(offset, -(p->buffer - p->buffer_start),
+                             p->buffer_end - p->buffer);
+        p->buffer += offset;
+        break;
+    case SEEK_END:
+        if (offset > 0)
+            p->eof = 1;
+        offset    = av_clip(offset, -(p->buffer_end - p->buffer_start), 0);
+        p->buffer = p->buffer_end + offset;
+        break;
+    case SEEK_SET:
+        if (p->buffer_end - p->buffer_start < offset)
+            p->eof = 1;
+        offset    = av_clip(offset, 0, p->buffer_end - p->buffer_start);
+        p->buffer = p->buffer_start + offset;
+        break;
+    default:
+        return AVERROR(EINVAL);
+    }
+    return bytestream2_tell_p(p);
+}
+
+static av_always_inline unsigned int bytestream2_get_buffer(GetByteContext *g,
+                                                            uint8_t *dst,
+                                                            unsigned int size)
+{
+    int size2 = FFMIN(g->buffer_end - g->buffer, size);
+    memcpy(dst, g->buffer, size2);
+    g->buffer += size2;
+    return size2;
+}
+
+static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g,
+                                                             uint8_t *dst,
+                                                             unsigned int size)
+{
+    memcpy(dst, g->buffer, size);
+    g->buffer += size;
+    return size;
+}
+
+static av_always_inline unsigned int bytestream2_put_buffer(PutByteContext *p,
+                                                            const uint8_t *src,
+                                                            unsigned int size)
+{
+    int size2;
+    if (p->eof)
+        return 0;
+    size2 = FFMIN(p->buffer_end - p->buffer, size);
+    if (size2 != size)
+        p->eof = 1;
+    memcpy(p->buffer, src, size2);
+    p->buffer += size2;
+    return size2;
+}
+
+static av_always_inline unsigned int bytestream2_put_bufferu(PutByteContext *p,
+                                                             const uint8_t *src,
+                                                             unsigned int size)
+{
+    memcpy(p->buffer, src, size);
+    p->buffer += size;
+    return size;
+}
+
+static av_always_inline void bytestream2_set_buffer(PutByteContext *p,
+                                                    const uint8_t c,
+                                                    unsigned int size)
+{
+    int size2;
+    if (p->eof)
+        return;
+    size2 = FFMIN(p->buffer_end - p->buffer, size);
+    if (size2 != size)
+        p->eof = 1;
+    memset(p->buffer, c, size2);
+    p->buffer += size2;
+}
+
+static av_always_inline void bytestream2_set_bufferu(PutByteContext *p,
+                                                     const uint8_t c,
+                                                     unsigned int size)
+{
+    memset(p->buffer, c, size);
+    p->buffer += size;
+}
+
+static av_always_inline unsigned int bytestream2_get_eof(PutByteContext *p)
+{
+    return p->eof;
+}
+
+static av_always_inline unsigned int bytestream2_copy_bufferu(PutByteContext *p,
+                                                              GetByteContext *g,
+                                                              unsigned int size)
+{
+    memcpy(p->buffer, g->buffer, size);
+    p->buffer += size;
+    g->buffer += size;
+    return size;
+}
+
+static av_always_inline unsigned int bytestream2_copy_buffer(PutByteContext *p,
+                                                             GetByteContext *g,
+                                                             unsigned int size)
+{
+    int size2;
+
+    if (p->eof)
+        return 0;
+    size  = FFMIN(g->buffer_end - g->buffer, size);
+    size2 = FFMIN(p->buffer_end - p->buffer, size);
+    if (size2 != size)
+        p->eof = 1;
+
+    return bytestream2_copy_bufferu(p, g, size2);
+}
+
+static av_always_inline unsigned int bytestream_get_buffer(const uint8_t **b,
+                                                           uint8_t *dst,
+                                                           unsigned int size)
+{
+    memcpy(dst, *b, size);
+    (*b) += size;
+    return size;
+}
+
+static av_always_inline void bytestream_put_buffer(uint8_t **b,
+                                                   const uint8_t *src,
+                                                   unsigned int size)
+{
+    memcpy(*b, src, size);
+    (*b) += size;
+}
+
+#endif /* AVCODEC_BYTESTREAM_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_data.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_data.c
new file mode 100644
index 000000000..d2e36cd6d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_data.c
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2016 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "cbrt_data.h"
+
+#include "libavutil/libm.h"
+
+#if CONFIG_HARDCODED_TABLES
+#include "libavcodec/cbrt_tables.h"
+#else
+#include "cbrt_tablegen.h"
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_data.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_data.h
new file mode 100644
index 000000000..89117f85b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_data.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2016 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_CBRT_DATA_H
+#define AVCODEC_CBRT_DATA_H
+
+#include <stdint.h>
+
+#include "config.h"
+
+#if CONFIG_HARDCODED_TABLES
+#define ff_cbrt_tableinit_fixed()
+#define ff_cbrt_tableinit()
+extern const uint32_t ff_cbrt_tab[1 << 13];
+extern const uint32_t ff_cbrt_tab_fixed[1 << 13];
+#else
+void ff_cbrt_tableinit(void);
+void ff_cbrt_tableinit_fixed(void);
+extern uint32_t ff_cbrt_tab[1 << 13];
+extern uint32_t ff_cbrt_tab_fixed[1 << 13];
+#endif
+
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_data_fixed.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_data_fixed.c
new file mode 100644
index 000000000..d661b25a6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_data_fixed.c
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2016 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "cbrt_data.h"
+
+#if CONFIG_HARDCODED_TABLES
+#include "libavcodec/cbrt_fixed_tables.h"
+#else
+#define USE_FIXED 1
+#include "cbrt_tablegen.h"
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_tablegen.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_tablegen.c
new file mode 100644
index 000000000..8c2235e98
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_tablegen.c
@@ -0,0 +1,24 @@
+/*
+ * Generate a header file for hardcoded AAC cube-root table
+ *
+ * Copyright (c) 2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 0
+#include "cbrt_tablegen_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_tablegen.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_tablegen.h
new file mode 100644
index 000000000..9af18d8ab
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/cbrt_tablegen.h
@@ -0,0 +1,73 @@
+/*
+ * Header file for hardcoded AAC cube-root table
+ *
+ * Copyright (c) 2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_CBRT_TABLEGEN_H
+#define AVCODEC_CBRT_TABLEGEN_H
+
+#include <stdint.h>
+#include <math.h>
+#include "libavutil/attributes.h"
+#include "libavutil/intfloat.h"
+#include "libavcodec/aac_defines.h"
+
+#if USE_FIXED
+#define CBRT(x) lrint((x) * 8192)
+#else
+#define CBRT(x) av_float2int((float)(x))
+#endif
+
+uint32_t AAC_RENAME(ff_cbrt_tab)[1 << 13];
+
+av_cold void AAC_RENAME(ff_cbrt_tableinit)(void)
+{
+    static double cbrt_tab_dbl[1 << 13];
+    if (!AAC_RENAME(ff_cbrt_tab)[(1<<13) - 1]) {
+        int i, j, k;
+        double cbrt_val;
+
+        for (i = 1; i < 1<<13; i++)
+            cbrt_tab_dbl[i] = 1;
+
+        /* have to take care of non-squarefree numbers */
+        for (i = 2; i < 90; i++) {
+            if (cbrt_tab_dbl[i] == 1) {
+                cbrt_val = i * cbrt(i);
+                for (k = i; k < 1<<13; k *= i)
+                    for (j = k; j < 1<<13; j += k)
+                        cbrt_tab_dbl[j] *= cbrt_val;
+            }
+        }
+
+        for (i = 91; i <= 8191; i+= 2) {
+            if (cbrt_tab_dbl[i] == 1) {
+                cbrt_val = i * cbrt(i);
+                for (j = i; j < 1<<13; j += i)
+                    cbrt_tab_dbl[j] *= cbrt_val;
+            }
+        }
+
+        for (i = 0; i < 1<<13; i++)
+            AAC_RENAME(ff_cbrt_tab)[i] = CBRT(cbrt_tab_dbl[i]);
+    }
+}
+
+#endif /* AVCODEC_CBRT_TABLEGEN_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/codec_desc.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/codec_desc.c
new file mode 100644
index 000000000..4d033c20f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/codec_desc.c
@@ -0,0 +1,3286 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * This table was generated from the long and short names of AVCodecs
+ * please see the respective codec sources for authorship
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <string.h>
+
+#include "libavutil/common.h"
+#include "libavutil/internal.h"
+#include "avcodec.h"
+#include "profiles.h"
+#include "version.h"
+
+#define MT(...) (const char *const[]){ __VA_ARGS__, NULL }
+
+static const AVCodecDescriptor codec_descriptors[] = {
+    /* video codecs */
+    {
+        .id        = AV_CODEC_ID_MPEG1VIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mpeg1video",
+        .long_name = NULL_IF_CONFIG_SMALL("MPEG-1 video"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+    },
+    {
+        .id        = AV_CODEC_ID_MPEG2VIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mpeg2video",
+        .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_mpeg2_video_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_H261,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "h261",
+        .long_name = NULL_IF_CONFIG_SMALL("H.261"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_H263,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "h263",
+        .long_name = NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+    },
+    {
+        .id        = AV_CODEC_ID_RV10,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "rv10",
+        .long_name = NULL_IF_CONFIG_SMALL("RealVideo 1.0"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_RV20,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "rv20",
+        .long_name = NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+    },
+    {
+        .id        = AV_CODEC_ID_MJPEG,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mjpeg",
+        .long_name = NULL_IF_CONFIG_SMALL("Motion JPEG"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+        .mime_types= MT("image/jpeg"),
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_mjpeg_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_MJPEGB,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mjpegb",
+        .long_name = NULL_IF_CONFIG_SMALL("Apple MJPEG-B"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_LJPEG,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "ljpeg",
+        .long_name = NULL_IF_CONFIG_SMALL("Lossless JPEG"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_SP5X,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "sp5x",
+        .long_name = NULL_IF_CONFIG_SMALL("Sunplus JPEG (SP5X)"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_JPEGLS,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "jpegls",
+        .long_name = NULL_IF_CONFIG_SMALL("JPEG-LS"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY |
+                     AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MPEG4,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mpeg4",
+        .long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_mpeg4_video_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_RAWVIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "rawvideo",
+        .long_name = NULL_IF_CONFIG_SMALL("raw video"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MSMPEG4V1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "msmpeg4v1",
+        .long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MSMPEG4V2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "msmpeg4v2",
+        .long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MSMPEG4V3,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "msmpeg4v3",
+        .long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_WMV1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "wmv1",
+        .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_WMV2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "wmv2",
+        .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 8"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_H263P,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "h263p",
+        .long_name = NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+    },
+    {
+        .id        = AV_CODEC_ID_H263I,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "h263i",
+        .long_name = NULL_IF_CONFIG_SMALL("Intel H.263"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+    },
+    {
+        .id        = AV_CODEC_ID_FLV1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "flv1",
+        .long_name = NULL_IF_CONFIG_SMALL("FLV / Sorenson Spark / Sorenson H.263 (Flash Video)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SVQ1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "svq1",
+        .long_name = NULL_IF_CONFIG_SMALL("Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SVQ3,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "svq3",
+        .long_name = NULL_IF_CONFIG_SMALL("Sorenson Vector Quantizer 3 / Sorenson Video 3 / SVQ3"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+    },
+    {
+        .id        = AV_CODEC_ID_DVVIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "dvvideo",
+        .long_name = NULL_IF_CONFIG_SMALL("DV (Digital Video)"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_HUFFYUV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "huffyuv",
+        .long_name = NULL_IF_CONFIG_SMALL("HuffYUV"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_CYUV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "cyuv",
+        .long_name = NULL_IF_CONFIG_SMALL("Creative YUV (CYUV)"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_H264,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "h264",
+        .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_LOSSLESS | AV_CODEC_PROP_REORDER,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_h264_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_INDEO3,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "indeo3",
+        .long_name = NULL_IF_CONFIG_SMALL("Intel Indeo 3"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_VP3,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vp3",
+        .long_name = NULL_IF_CONFIG_SMALL("On2 VP3"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_THEORA,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "theora",
+        .long_name = NULL_IF_CONFIG_SMALL("Theora"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ASV1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "asv1",
+        .long_name = NULL_IF_CONFIG_SMALL("ASUS V1"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ASV2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "asv2",
+        .long_name = NULL_IF_CONFIG_SMALL("ASUS V2"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_FFV1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "ffv1",
+        .long_name = NULL_IF_CONFIG_SMALL("FFmpeg video codec #1"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_4XM,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "4xm",
+        .long_name = NULL_IF_CONFIG_SMALL("4X Movie"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_VCR1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vcr1",
+        .long_name = NULL_IF_CONFIG_SMALL("ATI VCR1"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_CLJR,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "cljr",
+        .long_name = NULL_IF_CONFIG_SMALL("Cirrus Logic AccuPak"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MDEC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mdec",
+        .long_name = NULL_IF_CONFIG_SMALL("Sony PlayStation MDEC (Motion DECoder)"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ROQ,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "roq",
+        .long_name = NULL_IF_CONFIG_SMALL("id RoQ video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_INTERPLAY_VIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "interplayvideo",
+        .long_name = NULL_IF_CONFIG_SMALL("Interplay MVE video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_XAN_WC3,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "xan_wc3",
+        .long_name = NULL_IF_CONFIG_SMALL("Wing Commander III / Xan"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_XAN_WC4,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "xan_wc4",
+        .long_name = NULL_IF_CONFIG_SMALL("Wing Commander IV / Xxan"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_RPZA,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "rpza",
+        .long_name = NULL_IF_CONFIG_SMALL("QuickTime video (RPZA)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_CINEPAK,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "cinepak",
+        .long_name = NULL_IF_CONFIG_SMALL("Cinepak"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_WS_VQA,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "ws_vqa",
+        .long_name = NULL_IF_CONFIG_SMALL("Westwood Studios VQA (Vector Quantized Animation) video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MSRLE,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "msrle",
+        .long_name = NULL_IF_CONFIG_SMALL("Microsoft RLE"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MSVIDEO1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "msvideo1",
+        .long_name = NULL_IF_CONFIG_SMALL("Microsoft Video 1"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_IDCIN,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "idcin",
+        .long_name = NULL_IF_CONFIG_SMALL("id Quake II CIN video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_8BPS,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "8bps",
+        .long_name = NULL_IF_CONFIG_SMALL("QuickTime 8BPS video"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_SMC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "smc",
+        .long_name = NULL_IF_CONFIG_SMALL("QuickTime Graphics (SMC)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_FLIC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "flic",
+        .long_name = NULL_IF_CONFIG_SMALL("Autodesk Animator Flic video"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_TRUEMOTION1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "truemotion1",
+        .long_name = NULL_IF_CONFIG_SMALL("Duck TrueMotion 1.0"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_VMDVIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vmdvideo",
+        .long_name = NULL_IF_CONFIG_SMALL("Sierra VMD video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MSZH,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mszh",
+        .long_name = NULL_IF_CONFIG_SMALL("LCL (LossLess Codec Library) MSZH"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_ZLIB,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "zlib",
+        .long_name = NULL_IF_CONFIG_SMALL("LCL (LossLess Codec Library) ZLIB"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_QTRLE,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "qtrle",
+        .long_name = NULL_IF_CONFIG_SMALL("QuickTime Animation (RLE) video"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_TSCC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "tscc",
+        .long_name = NULL_IF_CONFIG_SMALL("TechSmith Screen Capture Codec"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_ULTI,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "ulti",
+        .long_name = NULL_IF_CONFIG_SMALL("IBM UltiMotion"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_QDRAW,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "qdraw",
+        .long_name = NULL_IF_CONFIG_SMALL("Apple QuickDraw"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_VIXL,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vixl",
+        .long_name = NULL_IF_CONFIG_SMALL("Miro VideoXL"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_QPEG,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "qpeg",
+        .long_name = NULL_IF_CONFIG_SMALL("Q-team QPEG"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_PNG,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "png",
+        .long_name = NULL_IF_CONFIG_SMALL("PNG (Portable Network Graphics) image"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/png"),
+    },
+    {
+        .id        = AV_CODEC_ID_PPM,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "ppm",
+        .long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PBM,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "pbm",
+        .long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PGM,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "pgm",
+        .long_name = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PGMYUV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "pgmyuv",
+        .long_name = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PAM,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "pam",
+        .long_name = NULL_IF_CONFIG_SMALL("PAM (Portable AnyMap) image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/x-portable-pixmap"),
+    },
+    {
+        .id        = AV_CODEC_ID_FFVHUFF,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "ffvhuff",
+        .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_RV30,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "rv30",
+        .long_name = NULL_IF_CONFIG_SMALL("RealVideo 3.0"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+    },
+    {
+        .id        = AV_CODEC_ID_RV40,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "rv40",
+        .long_name = NULL_IF_CONFIG_SMALL("RealVideo 4.0"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+    },
+    {
+        .id        = AV_CODEC_ID_VC1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vc1",
+        .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_vc1_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_WMV3,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "wmv3",
+        .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_vc1_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_LOCO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "loco",
+        .long_name = NULL_IF_CONFIG_SMALL("LOCO"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_WNV1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "wnv1",
+        .long_name = NULL_IF_CONFIG_SMALL("Winnov WNV1"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_AASC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "aasc",
+        .long_name = NULL_IF_CONFIG_SMALL("Autodesk RLE"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_INDEO2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "indeo2",
+        .long_name = NULL_IF_CONFIG_SMALL("Intel Indeo 2"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_FRAPS,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "fraps",
+        .long_name = NULL_IF_CONFIG_SMALL("Fraps"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_TRUEMOTION2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "truemotion2",
+        .long_name = NULL_IF_CONFIG_SMALL("Duck TrueMotion 2.0"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_BMP,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "bmp",
+        .long_name = NULL_IF_CONFIG_SMALL("BMP (Windows and OS/2 bitmap)"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/x-ms-bmp"),
+    },
+    {
+        .id        = AV_CODEC_ID_CSCD,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "cscd",
+        .long_name = NULL_IF_CONFIG_SMALL("CamStudio"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MMVIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mmvideo",
+        .long_name = NULL_IF_CONFIG_SMALL("American Laser Games MM Video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ZMBV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "zmbv",
+        .long_name = NULL_IF_CONFIG_SMALL("Zip Motion Blocks Video"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_AVS,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "avs",
+        .long_name = NULL_IF_CONFIG_SMALL("AVS (Audio Video Standard) video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SMACKVIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "smackvideo",
+        .long_name = NULL_IF_CONFIG_SMALL("Smacker video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_NUV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "nuv",
+        .long_name = NULL_IF_CONFIG_SMALL("NuppelVideo/RTJPEG"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_KMVC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "kmvc",
+        .long_name = NULL_IF_CONFIG_SMALL("Karl Morton's video codec"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_FLASHSV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "flashsv",
+        .long_name = NULL_IF_CONFIG_SMALL("Flash Screen Video v1"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_CAVS,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "cavs",
+        .long_name = NULL_IF_CONFIG_SMALL("Chinese AVS (Audio Video Standard) (AVS1-P2, JiZhun profile)"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+    },
+    {
+        .id        = AV_CODEC_ID_JPEG2000,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "jpeg2000",
+        .long_name = NULL_IF_CONFIG_SMALL("JPEG 2000"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY |
+                     AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/jp2"),
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_jpeg2000_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_VMNC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vmnc",
+        .long_name = NULL_IF_CONFIG_SMALL("VMware Screen Codec / VMware Video"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_VP5,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vp5",
+        .long_name = NULL_IF_CONFIG_SMALL("On2 VP5"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_VP6,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vp6",
+        .long_name = NULL_IF_CONFIG_SMALL("On2 VP6"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_VP6F,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vp6f",
+        .long_name = NULL_IF_CONFIG_SMALL("On2 VP6 (Flash version)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TARGA,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "targa",
+        .long_name = NULL_IF_CONFIG_SMALL("Truevision Targa image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/x-targa", "image/x-tga"),
+    },
+    {
+        .id        = AV_CODEC_ID_DSICINVIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "dsicinvideo",
+        .long_name = NULL_IF_CONFIG_SMALL("Delphine Software International CIN video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TIERTEXSEQVIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "tiertexseqvideo",
+        .long_name = NULL_IF_CONFIG_SMALL("Tiertex Limited SEQ video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TIFF,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "tiff",
+        .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/tiff"),
+    },
+    {
+        .id        = AV_CODEC_ID_GIF,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "gif",
+        .long_name = NULL_IF_CONFIG_SMALL("CompuServe GIF (Graphics Interchange Format)"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/gif"),
+    },
+    {
+        .id        = AV_CODEC_ID_DXA,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "dxa",
+        .long_name = NULL_IF_CONFIG_SMALL("Feeble Files/ScummVM DXA"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_DNXHD,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "dnxhd",
+        .long_name = NULL_IF_CONFIG_SMALL("VC3/DNxHD"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_dnxhd_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_THP,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "thp",
+        .long_name = NULL_IF_CONFIG_SMALL("Nintendo Gamecube THP video"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SGI,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "sgi",
+        .long_name = NULL_IF_CONFIG_SMALL("SGI image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_C93,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "c93",
+        .long_name = NULL_IF_CONFIG_SMALL("Interplay C93"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_BETHSOFTVID,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "bethsoftvid",
+        .long_name = NULL_IF_CONFIG_SMALL("Bethesda VID video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_PTX,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "ptx",
+        .long_name = NULL_IF_CONFIG_SMALL("V.Flash PTX image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TXD,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "txd",
+        .long_name = NULL_IF_CONFIG_SMALL("Renderware TXD (TeXture Dictionary) image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_VP6A,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vp6a",
+        .long_name = NULL_IF_CONFIG_SMALL("On2 VP6 (Flash version, with alpha channel)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_AMV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "amv",
+        .long_name = NULL_IF_CONFIG_SMALL("AMV Video"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_VB,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vb",
+        .long_name = NULL_IF_CONFIG_SMALL("Beam Software VB"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_PCX,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "pcx",
+        .long_name = NULL_IF_CONFIG_SMALL("PC Paintbrush PCX image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/x-pcx"),
+    },
+    {
+        .id        = AV_CODEC_ID_SUNRAST,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "sunrast",
+        .long_name = NULL_IF_CONFIG_SMALL("Sun Rasterfile image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_INDEO4,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "indeo4",
+        .long_name = NULL_IF_CONFIG_SMALL("Intel Indeo Video Interactive 4"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_INDEO5,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "indeo5",
+        .long_name = NULL_IF_CONFIG_SMALL("Intel Indeo Video Interactive 5"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MIMIC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mimic",
+        .long_name = NULL_IF_CONFIG_SMALL("Mimic"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_RL2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "rl2",
+        .long_name = NULL_IF_CONFIG_SMALL("RL2 video"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ESCAPE124,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "escape124",
+        .long_name = NULL_IF_CONFIG_SMALL("Escape 124"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_DIRAC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "dirac",
+        .long_name = NULL_IF_CONFIG_SMALL("Dirac"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_LOSSLESS | AV_CODEC_PROP_REORDER,
+    },
+    {
+        .id        = AV_CODEC_ID_BFI,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "bfi",
+        .long_name = NULL_IF_CONFIG_SMALL("Brute Force & Ignorance"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_CMV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "cmv",
+        .long_name = NULL_IF_CONFIG_SMALL("Electronic Arts CMV video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MOTIONPIXELS,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "motionpixels",
+        .long_name = NULL_IF_CONFIG_SMALL("Motion Pixels video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TGV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "tgv",
+        .long_name = NULL_IF_CONFIG_SMALL("Electronic Arts TGV video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TGQ,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "tgq",
+        .long_name = NULL_IF_CONFIG_SMALL("Electronic Arts TGQ video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TQI,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "tqi",
+        .long_name = NULL_IF_CONFIG_SMALL("Electronic Arts TQI video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_AURA,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "aura",
+        .long_name = NULL_IF_CONFIG_SMALL("Auravision AURA"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_AURA2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "aura2",
+        .long_name = NULL_IF_CONFIG_SMALL("Auravision Aura 2"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_V210X,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "v210x",
+        .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_TMV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "tmv",
+        .long_name = NULL_IF_CONFIG_SMALL("8088flex TMV"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_V210,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "v210",
+        .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_DPX,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "dpx",
+        .long_name = NULL_IF_CONFIG_SMALL("DPX (Digital Picture Exchange) image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MAD,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mad",
+        .long_name = NULL_IF_CONFIG_SMALL("Electronic Arts Madcow Video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_FRWU,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "frwu",
+        .long_name = NULL_IF_CONFIG_SMALL("Forward Uncompressed"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_FLASHSV2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "flashsv2",
+        .long_name = NULL_IF_CONFIG_SMALL("Flash Screen Video v2"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_CDGRAPHICS,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "cdgraphics",
+        .long_name = NULL_IF_CONFIG_SMALL("CD Graphics video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_R210,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "r210",
+        .long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_ANM,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "anm",
+        .long_name = NULL_IF_CONFIG_SMALL("Deluxe Paint Animation"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_BINKVIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "binkvideo",
+        .long_name = NULL_IF_CONFIG_SMALL("Bink video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_IFF_ILBM,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "iff_ilbm",
+        .long_name = NULL_IF_CONFIG_SMALL("IFF ACBM/ANIM/DEEP/ILBM/PBM/RGB8/RGBN"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_KGV1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "kgv1",
+        .long_name = NULL_IF_CONFIG_SMALL("Kega Game Video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_YOP,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "yop",
+        .long_name = NULL_IF_CONFIG_SMALL("Psygnosis YOP Video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_VP8,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vp8",
+        .long_name = NULL_IF_CONFIG_SMALL("On2 VP8"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_PICTOR,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "pictor",
+        .long_name = NULL_IF_CONFIG_SMALL("Pictor/PC Paint"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ANSI,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "ansi",
+        .long_name = NULL_IF_CONFIG_SMALL("ASCII/ANSI art"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_A64_MULTI,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "a64_multi",
+        .long_name = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_A64_MULTI5,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "a64_multi5",
+        .long_name = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64, extended with 5th color (colram)"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_R10K,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "r10k",
+        .long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MXPEG,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mxpeg",
+        .long_name = NULL_IF_CONFIG_SMALL("Mobotix MxPEG video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_LAGARITH,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "lagarith",
+        .long_name = NULL_IF_CONFIG_SMALL("Lagarith lossless"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PRORES,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "prores",
+        .long_name = NULL_IF_CONFIG_SMALL("Apple ProRes (iCodec Pro)"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_prores_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_JV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "jv",
+        .long_name = NULL_IF_CONFIG_SMALL("Bitmap Brothers JV video"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_DFA,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "dfa",
+        .long_name = NULL_IF_CONFIG_SMALL("Chronomaster DFA"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_WMV3IMAGE,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "wmv3image",
+        .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 Image"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_VC1IMAGE,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vc1image",
+        .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 Image v2"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_UTVIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "utvideo",
+        .long_name = NULL_IF_CONFIG_SMALL("Ut Video"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_BMV_VIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "bmv_video",
+        .long_name = NULL_IF_CONFIG_SMALL("Discworld II BMV video"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_VBLE,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vble",
+        .long_name = NULL_IF_CONFIG_SMALL("VBLE Lossless Codec"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_DXTORY,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "dxtory",
+        .long_name = NULL_IF_CONFIG_SMALL("Dxtory"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_V410,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "v410",
+        .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:4:4 10-bit"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_XWD,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "xwd",
+        .long_name = NULL_IF_CONFIG_SMALL("XWD (X Window Dump) image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/x-xwindowdump"),
+    },
+    {
+        .id        = AV_CODEC_ID_CDXL,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "cdxl",
+        .long_name = NULL_IF_CONFIG_SMALL("Commodore CDXL video"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_XBM,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "xbm",
+        .long_name = NULL_IF_CONFIG_SMALL("XBM (X BitMap) image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/x-xbitmap"),
+    },
+    {
+        .id        = AV_CODEC_ID_ZEROCODEC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "zerocodec",
+        .long_name = NULL_IF_CONFIG_SMALL("ZeroCodec Lossless Video"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MSS1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mss1",
+        .long_name = NULL_IF_CONFIG_SMALL("MS Screen 1"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MSA1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "msa1",
+        .long_name = NULL_IF_CONFIG_SMALL("MS ATC Screen"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TSCC2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "tscc2",
+        .long_name = NULL_IF_CONFIG_SMALL("TechSmith Screen Codec 2"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MTS2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mts2",
+        .long_name = NULL_IF_CONFIG_SMALL("MS Expression Encoder Screen"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_CLLC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "cllc",
+        .long_name = NULL_IF_CONFIG_SMALL("Canopus Lossless Codec"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MSS2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mss2",
+        .long_name = NULL_IF_CONFIG_SMALL("MS Windows Media Video V9 Screen"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_VP9,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vp9",
+        .long_name = NULL_IF_CONFIG_SMALL("Google VP9"),
+        .props     = AV_CODEC_PROP_LOSSY,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_vp9_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_AIC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "aic",
+        .long_name = NULL_IF_CONFIG_SMALL("Apple Intermediate Codec"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ESCAPE130,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "escape130",
+        .long_name = NULL_IF_CONFIG_SMALL("Escape 130"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_G2M,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "g2m",
+        .long_name = NULL_IF_CONFIG_SMALL("Go2Meeting"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_WEBP,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "webp",
+        .long_name = NULL_IF_CONFIG_SMALL("WebP"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY |
+                     AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/webp"),
+    },
+    {
+        .id        = AV_CODEC_ID_HNM4_VIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "hnm4video",
+        .long_name = NULL_IF_CONFIG_SMALL("HNM 4 video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_HEVC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "hevc",
+        .long_name = NULL_IF_CONFIG_SMALL("H.265 / HEVC (High Efficiency Video Coding)"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_REORDER,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_hevc_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_FIC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "fic",
+        .long_name = NULL_IF_CONFIG_SMALL("Mirillis FIC"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ALIAS_PIX,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "alias_pix",
+        .long_name = NULL_IF_CONFIG_SMALL("Alias/Wavefront PIX image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_BRENDER_PIX,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "brender_pix",
+        .long_name = NULL_IF_CONFIG_SMALL("BRender PIX image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PAF_VIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "paf_video",
+        .long_name = NULL_IF_CONFIG_SMALL("Amazing Studio Packed Animation File Video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_EXR,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "exr",
+        .long_name = NULL_IF_CONFIG_SMALL("OpenEXR image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY |
+                     AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_VP7,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vp7",
+        .long_name = NULL_IF_CONFIG_SMALL("On2 VP7"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SANM,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "sanm",
+        .long_name = NULL_IF_CONFIG_SMALL("LucasArts SANM/SMUSH video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SGIRLE,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "sgirle",
+        .long_name = NULL_IF_CONFIG_SMALL("SGI RLE 8-bit"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MVC1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mvc1",
+        .long_name = NULL_IF_CONFIG_SMALL("Silicon Graphics Motion Video Compressor 1"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MVC2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mvc2",
+        .long_name = NULL_IF_CONFIG_SMALL("Silicon Graphics Motion Video Compressor 2"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_HQX,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "hqx",
+        .long_name = NULL_IF_CONFIG_SMALL("Canopus HQX"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TDSC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "tdsc",
+        .long_name = NULL_IF_CONFIG_SMALL("TDSC"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_HQ_HQA,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "hq_hqa",
+        .long_name = NULL_IF_CONFIG_SMALL("Canopus HQ/HQA"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_HAP,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "hap",
+        .long_name = NULL_IF_CONFIG_SMALL("Vidvox Hap"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_DDS,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "dds",
+        .long_name = NULL_IF_CONFIG_SMALL("DirectDraw Surface image decoder"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY |
+                     AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_DXV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "dxv",
+        .long_name = NULL_IF_CONFIG_SMALL("Resolume DXV"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SCREENPRESSO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "screenpresso",
+        .long_name = NULL_IF_CONFIG_SMALL("Screenpresso"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_RSCC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "rscc",
+        .long_name = NULL_IF_CONFIG_SMALL("innoHeim/Rsupport Screen Capture Codec"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_AVS2,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "avs2",
+        .long_name = NULL_IF_CONFIG_SMALL("AVS2-P2/IEEE1857.4"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_Y41P,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "y41p",
+        .long_name = NULL_IF_CONFIG_SMALL("Uncompressed YUV 4:1:1 12-bit"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_AVRP,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "avrp",
+        .long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_012V,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "012v",
+        .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_AVUI,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "avui",
+        .long_name = NULL_IF_CONFIG_SMALL("Avid Meridien Uncompressed"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_AYUV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "ayuv",
+        .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed MS 4:4:4:4"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_TARGA_Y216,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "targa_y216",
+        .long_name = NULL_IF_CONFIG_SMALL("Pinnacle TARGA CineWave YUV16"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_V308,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "v308",
+        .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed 4:4:4"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_V408,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "v408",
+        .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed QT 4:4:4:4"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_YUV4,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "yuv4",
+        .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed 4:2:0"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_AVRN,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "avrn",
+        .long_name = NULL_IF_CONFIG_SMALL("Avid AVI Codec"),
+    },
+    {
+        .id        = AV_CODEC_ID_CPIA,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "cpia",
+        .long_name = NULL_IF_CONFIG_SMALL("CPiA video format"),
+    },
+    {
+        .id        = AV_CODEC_ID_XFACE,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "xface",
+        .long_name = NULL_IF_CONFIG_SMALL("X-face image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SNOW,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "snow",
+        .long_name = NULL_IF_CONFIG_SMALL("Snow"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_SMVJPEG,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "smvjpeg",
+        .long_name = NULL_IF_CONFIG_SMALL("Sigmatel Motion Video"),
+    },
+    {
+        .id        = AV_CODEC_ID_APNG,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "apng",
+        .long_name = NULL_IF_CONFIG_SMALL("APNG (Animated Portable Network Graphics) image"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/png"),
+    },
+    {
+        .id        = AV_CODEC_ID_DAALA,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "daala",
+        .long_name = NULL_IF_CONFIG_SMALL("Daala"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_CFHD,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "cfhd",
+        .long_name = NULL_IF_CONFIG_SMALL("Cineform HD"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TRUEMOTION2RT,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "truemotion2rt",
+        .long_name = NULL_IF_CONFIG_SMALL("Duck TrueMotion 2.0 Real Time"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_M101,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "m101",
+        .long_name = NULL_IF_CONFIG_SMALL("Matrox Uncompressed SD"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MAGICYUV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "magicyuv",
+        .long_name = NULL_IF_CONFIG_SMALL("MagicYUV video"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_SHEERVIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "sheervideo",
+        .long_name = NULL_IF_CONFIG_SMALL("BitJazz SheerVideo"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_YLC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "ylc",
+        .long_name = NULL_IF_CONFIG_SMALL("YUY2 Lossless Codec"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PSD,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "psd",
+        .long_name = NULL_IF_CONFIG_SMALL("Photoshop PSD file"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PIXLET,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "pixlet",
+        .long_name = NULL_IF_CONFIG_SMALL("Apple Pixlet"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SPEEDHQ,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "speedhq",
+        .long_name = NULL_IF_CONFIG_SMALL("NewTek SpeedHQ"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_FMVC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "fmvc",
+        .long_name = NULL_IF_CONFIG_SMALL("FM Screen Capture Codec"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_SCPR,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "scpr",
+        .long_name = NULL_IF_CONFIG_SMALL("ScreenPressor"),
+        .props     = AV_CODEC_PROP_LOSSLESS | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_CLEARVIDEO,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "clearvideo",
+        .long_name = NULL_IF_CONFIG_SMALL("Iterated Systems ClearVideo"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_XPM,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "xpm",
+        .long_name = NULL_IF_CONFIG_SMALL("XPM (X PixMap) image"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/x-xpixmap"),
+    },
+    {
+        .id        = AV_CODEC_ID_AV1,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "av1",
+        .long_name = NULL_IF_CONFIG_SMALL("Alliance for Open Media AV1"),
+        .props     = AV_CODEC_PROP_LOSSY,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_av1_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_BITPACKED,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "bitpacked",
+        .long_name = NULL_IF_CONFIG_SMALL("Bitpacked"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MSCC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mscc",
+        .long_name = NULL_IF_CONFIG_SMALL("Mandsoft Screen Capture Codec"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_SRGC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "srgc",
+        .long_name = NULL_IF_CONFIG_SMALL("Screen Recorder Gold Codec"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_SVG,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "svg",
+        .long_name = NULL_IF_CONFIG_SMALL("Scalable Vector Graphics"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+        .mime_types= MT("image/svg+xml"),
+    },
+    {
+        .id        = AV_CODEC_ID_GDV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "gdv",
+        .long_name = NULL_IF_CONFIG_SMALL("Gremlin Digital Video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_FITS,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "fits",
+        .long_name = NULL_IF_CONFIG_SMALL("FITS (Flexible Image Transport System)"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_IMM4,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "imm4",
+        .long_name = NULL_IF_CONFIG_SMALL("Infinity IMM4"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_PROSUMER,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "prosumer",
+        .long_name = NULL_IF_CONFIG_SMALL("Brooktree ProSumer Video"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MWSC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "mwsc",
+        .long_name = NULL_IF_CONFIG_SMALL("MatchWare Screen Capture Codec"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_WCMV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "wcmv",
+        .long_name = NULL_IF_CONFIG_SMALL("WinCAM Motion Video"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_RASC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "rasc",
+        .long_name = NULL_IF_CONFIG_SMALL("RemotelyAnywhere Screen Capture"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_HYMT,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "hymt",
+        .long_name = NULL_IF_CONFIG_SMALL("HuffYUV MT"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_ARBC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "arbc",
+        .long_name = NULL_IF_CONFIG_SMALL("Gryphon's Anim Compressor"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_AGM,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "agm",
+        .long_name = NULL_IF_CONFIG_SMALL("Amuse Graphics Movie"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_LSCR,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "lscr",
+        .long_name = NULL_IF_CONFIG_SMALL("LEAD Screen Capture"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_VP4,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "vp4",
+        .long_name = NULL_IF_CONFIG_SMALL("On2 VP4"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+
+    /* various PCM "codecs" */
+    {
+        .id        = AV_CODEC_ID_PCM_S16LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s16le",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 16-bit little-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S16BE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s16be",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 16-bit big-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_U16LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_u16le",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM unsigned 16-bit little-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_U16BE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_u16be",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM unsigned 16-bit big-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S8,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s8",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 8-bit"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_U8,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_u8",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM unsigned 8-bit"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_MULAW,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_mulaw",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM mu-law / G.711 mu-law"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_ALAW,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_alaw",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM A-law / G.711 A-law"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S32LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s32le",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 32-bit little-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S32BE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s32be",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 32-bit big-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_U32LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_u32le",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM unsigned 32-bit little-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_U32BE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_u32be",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM unsigned 32-bit big-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S24LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s24le",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 24-bit little-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S24BE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s24be",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 24-bit big-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_U24LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_u24le",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM unsigned 24-bit little-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_U24BE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_u24be",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM unsigned 24-bit big-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S24DAUD,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s24daud",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM D-Cinema audio signed 24-bit"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_ZORK,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_zork",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM Zork"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S16LE_PLANAR,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s16le_planar",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 16-bit little-endian planar"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_DVD,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_dvd",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 20|24-bit big-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_F32BE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_f32be",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM 32-bit floating point big-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_F32LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_f32le",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM 32-bit floating point little-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_F64BE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_f64be",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM 64-bit floating point big-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_F64LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_f64le",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM 64-bit floating point little-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_BLURAY,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_bluray",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 16|20|24-bit big-endian for Blu-ray media"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_LXF,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_lxf",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 20-bit little-endian planar"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_S302M,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "s302m",
+        .long_name = NULL_IF_CONFIG_SMALL("SMPTE 302M"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S8_PLANAR,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s8_planar",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 8-bit planar"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S24LE_PLANAR,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s24le_planar",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 24-bit little-endian planar"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S32LE_PLANAR,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s32le_planar",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 32-bit little-endian planar"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S16BE_PLANAR,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s16be_planar",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 16-bit big-endian planar"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S64LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s64le",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 64-bit little-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S64BE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s64be",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 64-bit big-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_F16LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_f16le",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM 16.8 floating point little-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_F24LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_f24le",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM 24.0 floating point little-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_VIDC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_vidc",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM Archimedes VIDC"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+
+    /* various ADPCM codecs */
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_QT,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_qt",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA QuickTime"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_WAV,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_wav",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA WAV"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_DK3,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_dk3",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Duck DK3"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_DK4,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_dk4",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Duck DK4"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_WS,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_ws",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Westwood"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_SMJPEG,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_smjpeg",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Loki SDL MJPEG"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_MS,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ms",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Microsoft"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_4XM,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_4xm",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM 4X Movie"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_XA,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_xa",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM CDROM XA"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_ADX,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_adx",
+        .long_name = NULL_IF_CONFIG_SMALL("SEGA CRI ADX ADPCM"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_EA,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ea",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Electronic Arts"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_G726,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_g726",
+        .long_name = NULL_IF_CONFIG_SMALL("G.726 ADPCM"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_CT,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ct",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Creative Technology"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_SWF,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_swf",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Shockwave Flash"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_YAMAHA,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_yamaha",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Yamaha"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_SBPRO_4,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_sbpro_4",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Sound Blaster Pro 4-bit"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_SBPRO_3,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_sbpro_3",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Sound Blaster Pro 2.6-bit"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_SBPRO_2,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_sbpro_2",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Sound Blaster Pro 2-bit"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_THP,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_thp",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Nintendo THP"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_AMV,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_amv",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA AMV"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_EA_R1,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ea_r1",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Electronic Arts R1"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_EA_R3,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ea_r3",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Electronic Arts R3"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_EA_R2,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ea_r2",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Electronic Arts R2"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_EA_SEAD,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_ea_sead",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Electronic Arts SEAD"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_EA_EACS,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_ea_eacs",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Electronic Arts EACS"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_EA_XAS,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ea_xas",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Electronic Arts XAS"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_EA_MAXIS_XA,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ea_maxis_xa",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Electronic Arts Maxis CDROM XA"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_ISS,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_iss",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Funcom ISS"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_G722,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_g722",
+        .long_name = NULL_IF_CONFIG_SMALL("G.722 ADPCM"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_APC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_apc",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA CRYO APC"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_VIMA,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_vima",
+        .long_name = NULL_IF_CONFIG_SMALL("LucasArts VIMA audio"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_AFC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_afc",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Nintendo Gamecube AFC"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_OKI,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_oki",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Dialogic OKI"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_DTK,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_dtk",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Nintendo Gamecube DTK"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_RAD,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_rad",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Radical"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_G726LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_g726le",
+        .long_name = NULL_IF_CONFIG_SMALL("G.726 ADPCM little-endian"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_THP_LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_thp_le",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Nintendo THP (Little-Endian)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_PSX,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_psx",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Playstation"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_AICA,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_aica",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM Yamaha AICA"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_IMA_DAT4,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_ima_dat4",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Eurocom DAT4"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_MTAF,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_mtaf",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM MTAF"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ADPCM_AGM,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "adpcm_agm",
+        .long_name = NULL_IF_CONFIG_SMALL("ADPCM AmuseGraphics Movie AGM"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+
+    /* AMR */
+    {
+        .id        = AV_CODEC_ID_AMR_NB,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "amr_nb",
+        .long_name = NULL_IF_CONFIG_SMALL("AMR-NB (Adaptive Multi-Rate NarrowBand)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_AMR_WB,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "amr_wb",
+        .long_name = NULL_IF_CONFIG_SMALL("AMR-WB (Adaptive Multi-Rate WideBand)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+
+    /* RealAudio codecs*/
+    {
+        .id        = AV_CODEC_ID_RA_144,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "ra_144",
+        .long_name = NULL_IF_CONFIG_SMALL("RealAudio 1.0 (14.4K)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_RA_288,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "ra_288",
+        .long_name = NULL_IF_CONFIG_SMALL("RealAudio 2.0 (28.8K)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+
+    /* various DPCM codecs */
+    {
+        .id        = AV_CODEC_ID_ROQ_DPCM,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "roq_dpcm",
+        .long_name = NULL_IF_CONFIG_SMALL("DPCM id RoQ"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_INTERPLAY_DPCM,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "interplay_dpcm",
+        .long_name = NULL_IF_CONFIG_SMALL("DPCM Interplay"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_XAN_DPCM,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "xan_dpcm",
+        .long_name = NULL_IF_CONFIG_SMALL("DPCM Xan"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SOL_DPCM,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "sol_dpcm",
+        .long_name = NULL_IF_CONFIG_SMALL("DPCM Sol"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SDX2_DPCM,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "sdx2_dpcm",
+        .long_name = NULL_IF_CONFIG_SMALL("DPCM Squareroot-Delta-Exact"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_GREMLIN_DPCM,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "gremlin_dpcm",
+        .long_name = NULL_IF_CONFIG_SMALL("DPCM Gremlin"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+
+    /* audio codecs */
+    {
+        .id        = AV_CODEC_ID_MP2,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "mp2",
+        .long_name = NULL_IF_CONFIG_SMALL("MP2 (MPEG audio layer 2)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MP3,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "mp3",
+        .long_name = NULL_IF_CONFIG_SMALL("MP3 (MPEG audio layer 3)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_AAC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "aac",
+        .long_name = NULL_IF_CONFIG_SMALL("AAC (Advanced Audio Coding)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_aac_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_AC3,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "ac3",
+        .long_name = NULL_IF_CONFIG_SMALL("ATSC A/52A (AC-3)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_DTS,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "dts",
+        .long_name = NULL_IF_CONFIG_SMALL("DCA (DTS Coherent Acoustics)"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_LOSSLESS,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_dca_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_VORBIS,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "vorbis",
+        .long_name = NULL_IF_CONFIG_SMALL("Vorbis"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_DVAUDIO,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "dvaudio",
+        .long_name = NULL_IF_CONFIG_SMALL("DV audio"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_WMAV1,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "wmav1",
+        .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 1"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_WMAV2,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "wmav2",
+        .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 2"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MACE3,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "mace3",
+        .long_name = NULL_IF_CONFIG_SMALL("MACE (Macintosh Audio Compression/Expansion) 3:1"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MACE6,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "mace6",
+        .long_name = NULL_IF_CONFIG_SMALL("MACE (Macintosh Audio Compression/Expansion) 6:1"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_VMDAUDIO,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "vmdaudio",
+        .long_name = NULL_IF_CONFIG_SMALL("Sierra VMD audio"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_FLAC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "flac",
+        .long_name = NULL_IF_CONFIG_SMALL("FLAC (Free Lossless Audio Codec)"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MP3ADU,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "mp3adu",
+        .long_name = NULL_IF_CONFIG_SMALL("ADU (Application Data Unit) MP3 (MPEG audio layer 3)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MP3ON4,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "mp3on4",
+        .long_name = NULL_IF_CONFIG_SMALL("MP3onMP4"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SHORTEN,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "shorten",
+        .long_name = NULL_IF_CONFIG_SMALL("Shorten"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_ALAC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "alac",
+        .long_name = NULL_IF_CONFIG_SMALL("ALAC (Apple Lossless Audio Codec)"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_WESTWOOD_SND1,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "westwood_snd1",
+        .long_name = NULL_IF_CONFIG_SMALL("Westwood Audio (SND1)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_GSM,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "gsm",
+        .long_name = NULL_IF_CONFIG_SMALL("GSM"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_QDM2,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "qdm2",
+        .long_name = NULL_IF_CONFIG_SMALL("QDesign Music Codec 2"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_COOK,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "cook",
+        .long_name = NULL_IF_CONFIG_SMALL("Cook / Cooker / Gecko (RealAudio G2)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TRUESPEECH,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "truespeech",
+        .long_name = NULL_IF_CONFIG_SMALL("DSP Group TrueSpeech"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TTA,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "tta",
+        .long_name = NULL_IF_CONFIG_SMALL("TTA (True Audio)"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_SMACKAUDIO,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "smackaudio",
+        .long_name = NULL_IF_CONFIG_SMALL("Smacker audio"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_QCELP,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "qcelp",
+        .long_name = NULL_IF_CONFIG_SMALL("QCELP / PureVoice"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_WAVPACK,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "wavpack",
+        .long_name = NULL_IF_CONFIG_SMALL("WavPack"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY |
+                     AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_DSICINAUDIO,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "dsicinaudio",
+        .long_name = NULL_IF_CONFIG_SMALL("Delphine Software International CIN audio"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_IMC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "imc",
+        .long_name = NULL_IF_CONFIG_SMALL("IMC (Intel Music Coder)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MUSEPACK7,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "musepack7",
+        .long_name = NULL_IF_CONFIG_SMALL("Musepack SV7"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MLP,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "mlp",
+        .long_name = NULL_IF_CONFIG_SMALL("MLP (Meridian Lossless Packing)"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_GSM_MS,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "gsm_ms",
+        .long_name = NULL_IF_CONFIG_SMALL("GSM Microsoft variant"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ATRAC3,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "atrac3",
+        .long_name = NULL_IF_CONFIG_SMALL("ATRAC3 (Adaptive TRansform Acoustic Coding 3)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_APE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "ape",
+        .long_name = NULL_IF_CONFIG_SMALL("Monkey's Audio"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_NELLYMOSER,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "nellymoser",
+        .long_name = NULL_IF_CONFIG_SMALL("Nellymoser Asao"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MUSEPACK8,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "musepack8",
+        .long_name = NULL_IF_CONFIG_SMALL("Musepack SV8"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SPEEX,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "speex",
+        .long_name = NULL_IF_CONFIG_SMALL("Speex"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_WMAVOICE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "wmavoice",
+        .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio Voice"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_WMAPRO,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "wmapro",
+        .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 9 Professional"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_WMALOSSLESS,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "wmalossless",
+        .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio Lossless"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_ATRAC3P,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "atrac3p",
+        .long_name = NULL_IF_CONFIG_SMALL("ATRAC3+ (Adaptive TRansform Acoustic Coding 3+)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_EAC3,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "eac3",
+        .long_name = NULL_IF_CONFIG_SMALL("ATSC A/52B (AC-3, E-AC-3)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SIPR,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "sipr",
+        .long_name = NULL_IF_CONFIG_SMALL("RealAudio SIPR / ACELP.NET"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_MP1,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "mp1",
+        .long_name = NULL_IF_CONFIG_SMALL("MP1 (MPEG audio layer 1)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TWINVQ,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "twinvq",
+        .long_name = NULL_IF_CONFIG_SMALL("VQF TwinVQ"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TRUEHD,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "truehd",
+        .long_name = NULL_IF_CONFIG_SMALL("TrueHD"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_MP4ALS,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "mp4als",
+        .long_name = NULL_IF_CONFIG_SMALL("MPEG-4 Audio Lossless Coding (ALS)"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_ATRAC1,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "atrac1",
+        .long_name = NULL_IF_CONFIG_SMALL("ATRAC1 (Adaptive TRansform Acoustic Coding)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_BINKAUDIO_RDFT,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "binkaudio_rdft",
+        .long_name = NULL_IF_CONFIG_SMALL("Bink Audio (RDFT)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_BINKAUDIO_DCT,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "binkaudio_dct",
+        .long_name = NULL_IF_CONFIG_SMALL("Bink Audio (DCT)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_AAC_LATM,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "aac_latm",
+        .long_name = NULL_IF_CONFIG_SMALL("AAC LATM (Advanced Audio Coding LATM syntax)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_aac_profiles),
+    },
+    {
+        .id        = AV_CODEC_ID_QDMC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "qdmc",
+        .long_name = NULL_IF_CONFIG_SMALL("QDesign Music"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_CELT,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "celt",
+        .long_name = NULL_IF_CONFIG_SMALL("Constrained Energy Lapped Transform (CELT)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_G723_1,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "g723_1",
+        .long_name = NULL_IF_CONFIG_SMALL("G.723.1"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_G729,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "g729",
+        .long_name = NULL_IF_CONFIG_SMALL("G.729"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_8SVX_EXP,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "8svx_exp",
+        .long_name = NULL_IF_CONFIG_SMALL("8SVX exponential"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_8SVX_FIB,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "8svx_fib",
+        .long_name = NULL_IF_CONFIG_SMALL("8SVX fibonacci"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_BMV_AUDIO,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "bmv_audio",
+        .long_name = NULL_IF_CONFIG_SMALL("Discworld II BMV audio"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_RALF,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "ralf",
+        .long_name = NULL_IF_CONFIG_SMALL("RealAudio Lossless"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_IAC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "iac",
+        .long_name = NULL_IF_CONFIG_SMALL("IAC (Indeo Audio Coder)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ILBC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "ilbc",
+        .long_name = NULL_IF_CONFIG_SMALL("iLBC (Internet Low Bitrate Codec)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_OPUS,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "opus",
+        .long_name = NULL_IF_CONFIG_SMALL("Opus (Opus Interactive Audio Codec)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_COMFORT_NOISE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "comfortnoise",
+        .long_name = NULL_IF_CONFIG_SMALL("RFC 3389 Comfort Noise"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_TAK,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "tak",
+        .long_name = NULL_IF_CONFIG_SMALL("TAK (Tom's lossless Audio Kompressor)"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_METASOUND,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "metasound",
+        .long_name = NULL_IF_CONFIG_SMALL("Voxware MetaSound"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_PAF_AUDIO,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "paf_audio",
+        .long_name = NULL_IF_CONFIG_SMALL("Amazing Studio Packed Animation File Audio"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ON2AVC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "avc",
+        .long_name = NULL_IF_CONFIG_SMALL("On2 Audio for Video Codec"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_DSS_SP,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "dss_sp",
+        .long_name = NULL_IF_CONFIG_SMALL("Digital Speech Standard - Standard Play mode (DSS SP)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_CODEC2,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "codec2",
+        .long_name = NULL_IF_CONFIG_SMALL("codec2 (very low bitrate speech codec)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_FFWAVESYNTH,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "wavesynth",
+        .long_name = NULL_IF_CONFIG_SMALL("Wave synthesis pseudo-codec"),
+    },
+    {
+        .id        = AV_CODEC_ID_SONIC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "sonic",
+        .long_name = NULL_IF_CONFIG_SMALL("Sonic"),
+    },
+    {
+        .id        = AV_CODEC_ID_SONIC_LS,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "sonicls",
+        .long_name = NULL_IF_CONFIG_SMALL("Sonic lossless"),
+    },
+    {
+        .id        = AV_CODEC_ID_EVRC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "evrc",
+        .long_name = NULL_IF_CONFIG_SMALL("EVRC (Enhanced Variable Rate Codec)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SMV,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "smv",
+        .long_name = NULL_IF_CONFIG_SMALL("SMV (Selectable Mode Vocoder)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_DSD_LSBF,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "dsd_lsbf",
+        .long_name = NULL_IF_CONFIG_SMALL("DSD (Direct Stream Digital), least significant bit first"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_DSD_MSBF,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "dsd_msbf",
+        .long_name = NULL_IF_CONFIG_SMALL("DSD (Direct Stream Digital), most significant bit first"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_DSD_LSBF_PLANAR,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "dsd_lsbf_planar",
+        .long_name = NULL_IF_CONFIG_SMALL("DSD (Direct Stream Digital), least significant bit first, planar"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_DSD_MSBF_PLANAR,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "dsd_msbf_planar",
+        .long_name = NULL_IF_CONFIG_SMALL("DSD (Direct Stream Digital), most significant bit first, planar"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_4GV,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "4gv",
+        .long_name = NULL_IF_CONFIG_SMALL("4GV (Fourth Generation Vocoder)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_INTERPLAY_ACM,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "interplayacm",
+        .long_name = NULL_IF_CONFIG_SMALL("Interplay ACM"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_XMA1,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "xma1",
+        .long_name = NULL_IF_CONFIG_SMALL("Xbox Media Audio 1"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_XMA2,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "xma2",
+        .long_name = NULL_IF_CONFIG_SMALL("Xbox Media Audio 2"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_DST,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "dst",
+        .long_name = NULL_IF_CONFIG_SMALL("DST (Direct Stream Transfer)"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_ATRAC3AL,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "atrac3al",
+        .long_name = NULL_IF_CONFIG_SMALL("ATRAC3 AL (Adaptive TRansform Acoustic Coding 3 Advanced Lossless)"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_ATRAC3PAL,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "atrac3pal",
+        .long_name = NULL_IF_CONFIG_SMALL("ATRAC3+ AL (Adaptive TRansform Acoustic Coding 3+ Advanced Lossless)"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_DOLBY_E,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "dolby_e",
+        .long_name = NULL_IF_CONFIG_SMALL("Dolby E"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_APTX,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "aptx",
+        .long_name = NULL_IF_CONFIG_SMALL("aptX (Audio Processing Technology for Bluetooth)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_APTX_HD,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "aptx_hd",
+        .long_name = NULL_IF_CONFIG_SMALL("aptX HD (Audio Processing Technology for Bluetooth)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_SBC,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "sbc",
+        .long_name = NULL_IF_CONFIG_SMALL("SBC (low-complexity subband codec)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_ATRAC9,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "atrac9",
+        .long_name = NULL_IF_CONFIG_SMALL("ATRAC9 (Adaptive TRansform Acoustic Coding 9)"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+    {
+        .id        = AV_CODEC_ID_HCOM,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "hcom",
+        .long_name = NULL_IF_CONFIG_SMALL("HCOM Audio"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
+
+    /* subtitle codecs */
+    {
+        .id        = AV_CODEC_ID_DVD_SUBTITLE,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "dvd_subtitle",
+        .long_name = NULL_IF_CONFIG_SMALL("DVD subtitles"),
+        .props     = AV_CODEC_PROP_BITMAP_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_DVB_SUBTITLE,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "dvb_subtitle",
+        .long_name = NULL_IF_CONFIG_SMALL("DVB subtitles"),
+        .props     = AV_CODEC_PROP_BITMAP_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_TEXT,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "text",
+        .long_name = NULL_IF_CONFIG_SMALL("raw UTF-8 text"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_XSUB,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "xsub",
+        .long_name = NULL_IF_CONFIG_SMALL("XSUB"),
+        .props     = AV_CODEC_PROP_BITMAP_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_SSA,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "ssa",
+        .long_name = NULL_IF_CONFIG_SMALL("SSA (SubStation Alpha) subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_MOV_TEXT,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "mov_text",
+        .long_name = NULL_IF_CONFIG_SMALL("MOV text"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_HDMV_PGS_SUBTITLE,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "hdmv_pgs_subtitle",
+        .long_name = NULL_IF_CONFIG_SMALL("HDMV Presentation Graphic Stream subtitles"),
+        .props     = AV_CODEC_PROP_BITMAP_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_DVB_TELETEXT,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "dvb_teletext",
+        .long_name = NULL_IF_CONFIG_SMALL("DVB teletext"),
+    },
+    {
+        .id        = AV_CODEC_ID_SRT,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "srt",
+        .long_name = NULL_IF_CONFIG_SMALL("SubRip subtitle with embedded timing"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_MICRODVD,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "microdvd",
+        .long_name = NULL_IF_CONFIG_SMALL("MicroDVD subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_EIA_608,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "eia_608",
+        .long_name = NULL_IF_CONFIG_SMALL("EIA-608 closed captions"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_JACOSUB,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "jacosub",
+        .long_name = NULL_IF_CONFIG_SMALL("JACOsub subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_SAMI,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "sami",
+        .long_name = NULL_IF_CONFIG_SMALL("SAMI subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_REALTEXT,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "realtext",
+        .long_name = NULL_IF_CONFIG_SMALL("RealText subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_STL,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "stl",
+        .long_name = NULL_IF_CONFIG_SMALL("Spruce subtitle format"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_SUBVIEWER1,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "subviewer1",
+        .long_name = NULL_IF_CONFIG_SMALL("SubViewer v1 subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_SUBVIEWER,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "subviewer",
+        .long_name = NULL_IF_CONFIG_SMALL("SubViewer subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_SUBRIP,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "subrip",
+        .long_name = NULL_IF_CONFIG_SMALL("SubRip subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_WEBVTT,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "webvtt",
+        .long_name = NULL_IF_CONFIG_SMALL("WebVTT subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_MPL2,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "mpl2",
+        .long_name = NULL_IF_CONFIG_SMALL("MPL2 subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_VPLAYER,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "vplayer",
+        .long_name = NULL_IF_CONFIG_SMALL("VPlayer subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_PJS,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "pjs",
+        .long_name = NULL_IF_CONFIG_SMALL("PJS (Phoenix Japanimation Society) subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_ASS,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "ass",
+        .long_name = NULL_IF_CONFIG_SMALL("ASS (Advanced SSA) subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_HDMV_TEXT_SUBTITLE,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "hdmv_text_subtitle",
+        .long_name = NULL_IF_CONFIG_SMALL("HDMV Text subtitle"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_TTML,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "ttml",
+        .long_name = NULL_IF_CONFIG_SMALL("Timed Text Markup Language"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+    },
+    {
+        .id        = AV_CODEC_ID_ARIB_CAPTION,
+        .type      = AVMEDIA_TYPE_SUBTITLE,
+        .name      = "arib_caption",
+        .long_name = NULL_IF_CONFIG_SMALL("ARIB STD-B24 caption"),
+        .props     = AV_CODEC_PROP_TEXT_SUB,
+        .profiles  = NULL_IF_CONFIG_SMALL(ff_arib_caption_profiles),
+    },
+
+    /* other kind of codecs and pseudo-codecs */
+    {
+        .id        = AV_CODEC_ID_TTF,
+        .type      = AVMEDIA_TYPE_DATA,
+        .name      = "ttf",
+        .long_name = NULL_IF_CONFIG_SMALL("TrueType font"),
+        .mime_types= MT("application/x-truetype-font", "application/x-font"),
+    },
+    {
+        .id        = AV_CODEC_ID_SCTE_35,
+        .type      = AVMEDIA_TYPE_DATA,
+        .name      = "scte_35",
+        .long_name = NULL_IF_CONFIG_SMALL("SCTE 35 Message Queue"),
+    },
+    {
+        .id        = AV_CODEC_ID_BINTEXT,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "bintext",
+        .long_name = NULL_IF_CONFIG_SMALL("Binary text"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY,
+    },
+    {
+        .id        = AV_CODEC_ID_XBIN,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "xbin",
+        .long_name = NULL_IF_CONFIG_SMALL("eXtended BINary text"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY,
+    },
+    {
+        .id        = AV_CODEC_ID_IDF,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "idf",
+        .long_name = NULL_IF_CONFIG_SMALL("iCEDraw text"),
+        .props     = AV_CODEC_PROP_INTRA_ONLY,
+    },
+    {
+        .id        = AV_CODEC_ID_OTF,
+        .type      = AVMEDIA_TYPE_DATA,
+        .name      = "otf",
+        .long_name = NULL_IF_CONFIG_SMALL("OpenType font"),
+        .mime_types= MT("application/vnd.ms-opentype"),
+    },
+    {
+        .id        = AV_CODEC_ID_SMPTE_KLV,
+        .type      = AVMEDIA_TYPE_DATA,
+        .name      = "klv",
+        .long_name = NULL_IF_CONFIG_SMALL("SMPTE 336M Key-Length-Value (KLV) metadata"),
+    },
+    {
+        .id        = AV_CODEC_ID_DVD_NAV,
+        .type      = AVMEDIA_TYPE_DATA,
+        .name      = "dvd_nav_packet",
+        .long_name = NULL_IF_CONFIG_SMALL("DVD Nav packet"),
+    },
+    {
+        .id        = AV_CODEC_ID_TIMED_ID3,
+        .type      = AVMEDIA_TYPE_DATA,
+        .name      = "timed_id3",
+        .long_name = NULL_IF_CONFIG_SMALL("timed ID3 metadata"),
+    },
+    {
+        .id        = AV_CODEC_ID_BIN_DATA,
+        .type      = AVMEDIA_TYPE_DATA,
+        .name      = "bin_data",
+        .long_name = NULL_IF_CONFIG_SMALL("binary data"),
+        .mime_types= MT("application/octet-stream"),
+    },
+    {
+        .id        = AV_CODEC_ID_WRAPPED_AVFRAME,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "wrapped_avframe",
+        .long_name = NULL_IF_CONFIG_SMALL("AVFrame to AVPacket passthrough"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+};
+
+static int descriptor_compare(const void *key, const void *member)
+{
+    enum AVCodecID id = *(const enum AVCodecID *) key;
+    const AVCodecDescriptor *desc = member;
+
+    return id - desc->id;
+}
+
+const AVCodecDescriptor *avcodec_descriptor_get(enum AVCodecID id)
+{
+    return bsearch(&id, codec_descriptors, FF_ARRAY_ELEMS(codec_descriptors),
+                   sizeof(codec_descriptors[0]), descriptor_compare);
+}
+
+const AVCodecDescriptor *avcodec_descriptor_next(const AVCodecDescriptor *prev)
+{
+    if (!prev)
+        return &codec_descriptors[0];
+    if (prev - codec_descriptors < FF_ARRAY_ELEMS(codec_descriptors) - 1)
+        return prev + 1;
+    return NULL;
+}
+
+const AVCodecDescriptor *avcodec_descriptor_get_by_name(const char *name)
+{
+    const AVCodecDescriptor *desc = NULL;
+
+    while ((desc = avcodec_descriptor_next(desc)))
+        if (!strcmp(desc->name, name))
+            return desc;
+    return NULL;
+}
+
+enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
+{
+    const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
+    return desc ? desc->type : AVMEDIA_TYPE_UNKNOWN;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/codec_list.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/codec_list.c
new file mode 100644
index 000000000..7a4fa626f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/codec_list.c
@@ -0,0 +1,9 @@
+static const AVCodec * const codec_list[] = {
+    &ff_aac_encoder,
+    &ff_opus_encoder,
+    &ff_libopus_encoder,
+    &ff_aac_decoder,
+    &ff_aac_fixed_decoder,
+    &ff_aac_latm_decoder,
+    &ff_libopus_decoder,
+    NULL };
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/d3d11va.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/d3d11va.c
new file mode 100644
index 000000000..9967f322c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/d3d11va.c
@@ -0,0 +1,48 @@
+/*
+ * Direct3D11 HW acceleration
+ *
+ * copyright (c) 2015 Steve Lhomme
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+
+#include "config.h"
+
+#if CONFIG_D3D11VA
+#include "libavutil/error.h"
+#include "libavutil/mem.h"
+
+#include "d3d11va.h"
+
+AVD3D11VAContext *av_d3d11va_alloc_context(void)
+{
+    AVD3D11VAContext* res = av_mallocz(sizeof(AVD3D11VAContext));
+    if (!res)
+        return NULL;
+    res->context_mutex = INVALID_HANDLE_VALUE;
+    return res;
+}
+#else
+struct AVD3D11VAContext *av_d3d11va_alloc_context(void);
+
+struct AVD3D11VAContext *av_d3d11va_alloc_context(void)
+{
+    return NULL;
+}
+#endif /* CONFIG_D3D11VA */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/d3d11va.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/d3d11va.h
new file mode 100644
index 000000000..6816b6c1e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/d3d11va.h
@@ -0,0 +1,112 @@
+/*
+ * Direct3D11 HW acceleration
+ *
+ * copyright (c) 2009 Laurent Aimar
+ * copyright (c) 2015 Steve Lhomme
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_D3D11VA_H
+#define AVCODEC_D3D11VA_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_d3d11va
+ * Public libavcodec D3D11VA header.
+ */
+
+#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0602
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x0602
+#endif
+
+#include <stdint.h>
+#include <d3d11.h>
+
+/**
+ * @defgroup lavc_codec_hwaccel_d3d11va Direct3D11
+ * @ingroup lavc_codec_hwaccel
+ *
+ * @{
+ */
+
+#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for Direct3D11 and old UVD/UVD+ ATI video cards
+#define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO    2 ///< Work around for Direct3D11 and old Intel GPUs with ClearVideo interface
+
+/**
+ * This structure is used to provides the necessary configurations and data
+ * to the Direct3D11 FFmpeg HWAccel implementation.
+ *
+ * The application must make it available as AVCodecContext.hwaccel_context.
+ *
+ * Use av_d3d11va_alloc_context() exclusively to allocate an AVD3D11VAContext.
+ */
+typedef struct AVD3D11VAContext {
+    /**
+     * D3D11 decoder object
+     */
+    ID3D11VideoDecoder *decoder;
+
+    /**
+      * D3D11 VideoContext
+      */
+    ID3D11VideoContext *video_context;
+
+    /**
+     * D3D11 configuration used to create the decoder
+     */
+    D3D11_VIDEO_DECODER_CONFIG *cfg;
+
+    /**
+     * The number of surface in the surface array
+     */
+    unsigned surface_count;
+
+    /**
+     * The array of Direct3D surfaces used to create the decoder
+     */
+    ID3D11VideoDecoderOutputView **surface;
+
+    /**
+     * A bit field configuring the workarounds needed for using the decoder
+     */
+    uint64_t workaround;
+
+    /**
+     * Private to the FFmpeg AVHWAccel implementation
+     */
+    unsigned report_id;
+
+    /**
+      * Mutex to access video_context
+      */
+    HANDLE  context_mutex;
+} AVD3D11VAContext;
+
+/**
+ * Allocate an AVD3D11VAContext.
+ *
+ * @return Newly-allocated AVD3D11VAContext or NULL on failure.
+ */
+AVD3D11VAContext *av_d3d11va_alloc_context(void);
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_D3D11VA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dct.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dct.h
new file mode 100644
index 000000000..0a03e256d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dct.h
@@ -0,0 +1,69 @@
+/*
+ * (I)DCT Transforms
+ * Copyright (c) 2009 Peter Ross <pross@xvid.org>
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ * Copyright (c) 2010 Vitor Sessak
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#if !defined(AVCODEC_DCT_H) && (!defined(FFT_FLOAT) || FFT_FLOAT)
+#define AVCODEC_DCT_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "rdft.h"
+
+struct DCTContext {
+    int nbits;
+    int inverse;
+    RDFTContext rdft;
+    const float *costab;
+    FFTSample *csc2;
+    void (*dct_calc)(struct DCTContext *s, FFTSample *data);
+    void (*dct32)(FFTSample *out, const FFTSample *in);
+};
+
+/**
+ * Set up DCT.
+ * @param nbits           size of the input array:
+ *                        (1 << nbits)     for DCT-II, DCT-III and DST-I
+ *                        (1 << nbits) + 1 for DCT-I
+ *
+ * @note the first element of the input of DST-I is ignored
+ */
+int  ff_dct_init(DCTContext *s, int nbits, enum DCTTransformType type);
+void ff_dct_end (DCTContext *s);
+
+void ff_dct_init_x86(DCTContext *s);
+
+void ff_fdct_ifast(int16_t *data);
+void ff_fdct_ifast248(int16_t *data);
+void ff_jpeg_fdct_islow_8(int16_t *data);
+void ff_jpeg_fdct_islow_10(int16_t *data);
+void ff_fdct248_islow_8(int16_t *data);
+void ff_fdct248_islow_10(int16_t *data);
+
+void ff_j_rev_dct(int16_t *data);
+void ff_j_rev_dct4(int16_t *data);
+void ff_j_rev_dct2(int16_t *data);
+void ff_j_rev_dct1(int16_t *data);
+void ff_jref_idct_put(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_jref_idct_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+
+#endif /* AVCODEC_DCT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/decode.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/decode.c
new file mode 100644
index 000000000..6c31166ec
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/decode.c
@@ -0,0 +1,2062 @@
+/*
+ * generic decoding-related code
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "config.h"
+
+#if CONFIG_ICONV
+# include <iconv.h>
+#endif
+
+#include "libavutil/avassert.h"
+#include "libavutil/avstring.h"
+#include "libavutil/bprint.h"
+#include "libavutil/common.h"
+#include "libavutil/frame.h"
+#include "libavutil/hwcontext.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/internal.h"
+#include "libavutil/intmath.h"
+#include "libavutil/opt.h"
+
+#include "avcodec.h"
+#include "bytestream.h"
+#include "decode.h"
+#include "hwaccel.h"
+#include "internal.h"
+#include "thread.h"
+
+static int apply_param_change(AVCodecContext *avctx, const AVPacket *avpkt)
+{
+    int size = 0, ret;
+    const uint8_t *data;
+    uint32_t flags;
+    int64_t val;
+
+    data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
+    if (!data)
+        return 0;
+
+    if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
+        av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
+               "changes, but PARAM_CHANGE side data was sent to it.\n");
+        ret = AVERROR(EINVAL);
+        goto fail2;
+    }
+
+    if (size < 4)
+        goto fail;
+
+    flags = bytestream_get_le32(&data);
+    size -= 4;
+
+    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
+        if (size < 4)
+            goto fail;
+        val = bytestream_get_le32(&data);
+        if (val <= 0 || val > INT_MAX) {
+            av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
+            ret = AVERROR_INVALIDDATA;
+            goto fail2;
+        }
+        avctx->channels = val;
+        size -= 4;
+    }
+    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
+        if (size < 8)
+            goto fail;
+        avctx->channel_layout = bytestream_get_le64(&data);
+        size -= 8;
+    }
+    if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
+        if (size < 4)
+            goto fail;
+        val = bytestream_get_le32(&data);
+        if (val <= 0 || val > INT_MAX) {
+            av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
+            ret = AVERROR_INVALIDDATA;
+            goto fail2;
+        }
+        avctx->sample_rate = val;
+        size -= 4;
+    }
+    if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
+        if (size < 8)
+            goto fail;
+        avctx->width  = bytestream_get_le32(&data);
+        avctx->height = bytestream_get_le32(&data);
+        size -= 8;
+        ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
+        if (ret < 0)
+            goto fail2;
+    }
+
+    return 0;
+fail:
+    av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
+    ret = AVERROR_INVALIDDATA;
+fail2:
+    if (ret < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
+        if (avctx->err_recognition & AV_EF_EXPLODE)
+            return ret;
+    }
+    return 0;
+}
+
+static int extract_packet_props(AVCodecInternal *avci, const AVPacket *pkt)
+{
+    int ret = 0;
+
+    av_packet_unref(avci->last_pkt_props);
+    if (pkt) {
+        ret = av_packet_copy_props(avci->last_pkt_props, pkt);
+        if (!ret)
+            avci->last_pkt_props->size = pkt->size; // HACK: Needed for ff_decode_frame_props().
+    }
+    return ret;
+}
+
+static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
+{
+    int ret;
+
+    /* move the original frame to our backup */
+    av_frame_unref(avci->to_free);
+    av_frame_move_ref(avci->to_free, frame);
+
+    /* now copy everything except the AVBufferRefs back
+     * note that we make a COPY of the side data, so calling av_frame_free() on
+     * the caller's frame will work properly */
+    ret = av_frame_copy_props(frame, avci->to_free);
+    if (ret < 0)
+        return ret;
+
+    memcpy(frame->data,     avci->to_free->data,     sizeof(frame->data));
+    memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
+    if (avci->to_free->extended_data != avci->to_free->data) {
+        int planes = avci->to_free->channels;
+        int size   = planes * sizeof(*frame->extended_data);
+
+        if (!size) {
+            av_frame_unref(frame);
+            return AVERROR_BUG;
+        }
+
+        frame->extended_data = av_malloc(size);
+        if (!frame->extended_data) {
+            av_frame_unref(frame);
+            return AVERROR(ENOMEM);
+        }
+        memcpy(frame->extended_data, avci->to_free->extended_data,
+               size);
+    } else
+        frame->extended_data = frame->data;
+
+    frame->format         = avci->to_free->format;
+    frame->width          = avci->to_free->width;
+    frame->height         = avci->to_free->height;
+    frame->channel_layout = avci->to_free->channel_layout;
+    frame->nb_samples     = avci->to_free->nb_samples;
+    frame->channels       = avci->to_free->channels;
+
+    return 0;
+}
+
+int ff_decode_bsfs_init(AVCodecContext *avctx)
+{
+    AVCodecInternal *avci = avctx->internal;
+    DecodeFilterContext *s = &avci->filter;
+    const char *bsfs_str;
+    int ret;
+
+    if (s->nb_bsfs)
+        return 0;
+
+    bsfs_str = avctx->codec->bsfs ? avctx->codec->bsfs : "null";
+    while (bsfs_str && *bsfs_str) {
+        AVBSFContext **tmp;
+        const AVBitStreamFilter *filter;
+        char *bsf, *bsf_options_str, *bsf_name;
+
+        bsf = av_get_token(&bsfs_str, ",");
+        if (!bsf) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+        bsf_name = av_strtok(bsf, "=", &bsf_options_str);
+        if (!bsf_name) {
+            av_freep(&bsf);
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+
+        filter = av_bsf_get_by_name(bsf_name);
+        if (!filter) {
+            av_log(avctx, AV_LOG_ERROR, "A non-existing bitstream filter %s "
+                   "requested by a decoder. This is a bug, please report it.\n",
+                   bsf_name);
+            av_freep(&bsf);
+            ret = AVERROR_BUG;
+            goto fail;
+        }
+
+        tmp = av_realloc_array(s->bsfs, s->nb_bsfs + 1, sizeof(*s->bsfs));
+        if (!tmp) {
+            av_freep(&bsf);
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+        s->bsfs = tmp;
+        s->nb_bsfs++;
+
+        ret = av_bsf_alloc(filter, &s->bsfs[s->nb_bsfs - 1]);
+        if (ret < 0) {
+            av_freep(&bsf);
+            goto fail;
+        }
+
+        if (s->nb_bsfs == 1) {
+            /* We do not currently have an API for passing the input timebase into decoders,
+             * but no filters used here should actually need it.
+             * So we make up some plausible-looking number (the MPEG 90kHz timebase) */
+            s->bsfs[s->nb_bsfs - 1]->time_base_in = (AVRational){ 1, 90000 };
+            ret = avcodec_parameters_from_context(s->bsfs[s->nb_bsfs - 1]->par_in,
+                                                  avctx);
+        } else {
+            s->bsfs[s->nb_bsfs - 1]->time_base_in = s->bsfs[s->nb_bsfs - 2]->time_base_out;
+            ret = avcodec_parameters_copy(s->bsfs[s->nb_bsfs - 1]->par_in,
+                                          s->bsfs[s->nb_bsfs - 2]->par_out);
+        }
+        if (ret < 0) {
+            av_freep(&bsf);
+            goto fail;
+        }
+
+        if (bsf_options_str && filter->priv_class) {
+            const AVOption *opt = av_opt_next(s->bsfs[s->nb_bsfs - 1]->priv_data, NULL);
+            const char * shorthand[2] = {NULL};
+
+            if (opt)
+                shorthand[0] = opt->name;
+
+            ret = av_opt_set_from_string(s->bsfs[s->nb_bsfs - 1]->priv_data, bsf_options_str, shorthand, "=", ":");
+            if (ret < 0) {
+                if (ret != AVERROR(ENOMEM)) {
+                    av_log(avctx, AV_LOG_ERROR, "Invalid options for bitstream filter %s "
+                           "requested by the decoder. This is a bug, please report it.\n",
+                           bsf_name);
+                    ret = AVERROR_BUG;
+                }
+                av_freep(&bsf);
+                goto fail;
+            }
+        }
+        av_freep(&bsf);
+
+        ret = av_bsf_init(s->bsfs[s->nb_bsfs - 1]);
+        if (ret < 0)
+            goto fail;
+
+        if (*bsfs_str)
+            bsfs_str++;
+    }
+
+    return 0;
+fail:
+    ff_decode_bsfs_uninit(avctx);
+    return ret;
+}
+
+/* try to get one output packet from the filter chain */
+static int bsfs_poll(AVCodecContext *avctx, AVPacket *pkt)
+{
+    DecodeFilterContext *s = &avctx->internal->filter;
+    int idx, ret;
+
+    /* start with the last filter in the chain */
+    idx = s->nb_bsfs - 1;
+    while (idx >= 0) {
+        /* request a packet from the currently selected filter */
+        ret = av_bsf_receive_packet(s->bsfs[idx], pkt);
+        if (ret == AVERROR(EAGAIN)) {
+            /* no packets available, try the next filter up the chain */
+            ret = 0;
+            idx--;
+            continue;
+        } else if (ret < 0 && ret != AVERROR_EOF) {
+            return ret;
+        }
+
+        /* got a packet or EOF -- pass it to the caller or to the next filter
+         * down the chain */
+        if (idx == s->nb_bsfs - 1) {
+            return ret;
+        } else {
+            idx++;
+            ret = av_bsf_send_packet(s->bsfs[idx], ret < 0 ? NULL : pkt);
+            if (ret < 0) {
+                av_log(avctx, AV_LOG_ERROR,
+                       "Error pre-processing a packet before decoding\n");
+                av_packet_unref(pkt);
+                return ret;
+            }
+        }
+    }
+
+    return AVERROR(EAGAIN);
+}
+
+int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt)
+{
+    AVCodecInternal *avci = avctx->internal;
+    int ret;
+
+    if (avci->draining)
+        return AVERROR_EOF;
+
+    ret = bsfs_poll(avctx, pkt);
+    if (ret == AVERROR_EOF)
+        avci->draining = 1;
+    if (ret < 0)
+        return ret;
+
+    ret = extract_packet_props(avctx->internal, pkt);
+    if (ret < 0)
+        goto finish;
+
+    ret = apply_param_change(avctx, pkt);
+    if (ret < 0)
+        goto finish;
+
+    if (avctx->codec->receive_frame)
+        avci->compat_decode_consumed += pkt->size;
+
+    return 0;
+finish:
+    av_packet_unref(pkt);
+    return ret;
+}
+
+/**
+ * Attempt to guess proper monotonic timestamps for decoded video frames
+ * which might have incorrect times. Input timestamps may wrap around, in
+ * which case the output will as well.
+ *
+ * @param pts the pts field of the decoded AVPacket, as passed through
+ * AVFrame.pts
+ * @param dts the dts field of the decoded AVPacket
+ * @return one of the input values, may be AV_NOPTS_VALUE
+ */
+static int64_t guess_correct_pts(AVCodecContext *ctx,
+                                 int64_t reordered_pts, int64_t dts)
+{
+    int64_t pts = AV_NOPTS_VALUE;
+
+    if (dts != AV_NOPTS_VALUE) {
+        ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
+        ctx->pts_correction_last_dts = dts;
+    } else if (reordered_pts != AV_NOPTS_VALUE)
+        ctx->pts_correction_last_dts = reordered_pts;
+
+    if (reordered_pts != AV_NOPTS_VALUE) {
+        ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
+        ctx->pts_correction_last_pts = reordered_pts;
+    } else if(dts != AV_NOPTS_VALUE)
+        ctx->pts_correction_last_pts = dts;
+
+    if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
+       && reordered_pts != AV_NOPTS_VALUE)
+        pts = reordered_pts;
+    else
+        pts = dts;
+
+    return pts;
+}
+
+/*
+ * The core of the receive_frame_wrapper for the decoders implementing
+ * the simple API. Certain decoders might consume partial packets without
+ * returning any output, so this function needs to be called in a loop until it
+ * returns EAGAIN.
+ **/
+static int decode_simple_internal(AVCodecContext *avctx, AVFrame *frame)
+{
+    AVCodecInternal   *avci = avctx->internal;
+    DecodeSimpleContext *ds = &avci->ds;
+    AVPacket           *pkt = ds->in_pkt;
+    // copy to ensure we do not change pkt
+    int got_frame, actual_got_frame;
+    int ret;
+
+    if (!pkt->data && !avci->draining) {
+        av_packet_unref(pkt);
+        ret = ff_decode_get_packet(avctx, pkt);
+        if (ret < 0 && ret != AVERROR_EOF)
+            return ret;
+    }
+
+    // Some codecs (at least wma lossless) will crash when feeding drain packets
+    // after EOF was signaled.
+    if (avci->draining_done)
+        return AVERROR_EOF;
+
+    if (!pkt->data &&
+        !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY ||
+          avctx->active_thread_type & FF_THREAD_FRAME))
+        return AVERROR_EOF;
+
+    got_frame = 0;
+
+    if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) {
+        ret = ff_thread_decode_frame(avctx, frame, &got_frame, pkt);
+    } else {
+        ret = avctx->codec->decode(avctx, frame, &got_frame, pkt);
+
+        if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS))
+            frame->pkt_dts = pkt->dts;
+        if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
+            if(!avctx->has_b_frames)
+                frame->pkt_pos = pkt->pos;
+            //FIXME these should be under if(!avctx->has_b_frames)
+            /* get_buffer is supposed to set frame parameters */
+            if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
+                if (!frame->sample_aspect_ratio.num)  frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
+                if (!frame->width)                    frame->width               = avctx->width;
+                if (!frame->height)                   frame->height              = avctx->height;
+                if (frame->format == AV_PIX_FMT_NONE) frame->format              = avctx->pix_fmt;
+            }
+        }
+    }
+    emms_c();
+    actual_got_frame = got_frame;
+
+    if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
+        if (frame->flags & AV_FRAME_FLAG_DISCARD)
+            got_frame = 0;
+        if (got_frame)
+            frame->best_effort_timestamp = guess_correct_pts(avctx,
+                                                             frame->pts,
+                                                             frame->pkt_dts);
+    } else if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) {
+        uint8_t *side;
+        int side_size;
+        uint32_t discard_padding = 0;
+        uint8_t skip_reason = 0;
+        uint8_t discard_reason = 0;
+
+        if (ret >= 0 && got_frame) {
+            frame->best_effort_timestamp = guess_correct_pts(avctx,
+                                                             frame->pts,
+                                                             frame->pkt_dts);
+            if (frame->format == AV_SAMPLE_FMT_NONE)
+                frame->format = avctx->sample_fmt;
+            if (!frame->channel_layout)
+                frame->channel_layout = avctx->channel_layout;
+            if (!frame->channels)
+                frame->channels = avctx->channels;
+            if (!frame->sample_rate)
+                frame->sample_rate = avctx->sample_rate;
+        }
+
+        side= av_packet_get_side_data(avci->last_pkt_props, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
+        if(side && side_size>=10) {
+            avctx->internal->skip_samples = AV_RL32(side) * avctx->internal->skip_samples_multiplier;
+            discard_padding = AV_RL32(side + 4);
+            av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
+                   avctx->internal->skip_samples, (int)discard_padding);
+            skip_reason = AV_RL8(side + 8);
+            discard_reason = AV_RL8(side + 9);
+        }
+
+        if ((frame->flags & AV_FRAME_FLAG_DISCARD) && got_frame &&
+            !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
+            avctx->internal->skip_samples = FFMAX(0, avctx->internal->skip_samples - frame->nb_samples);
+            got_frame = 0;
+        }
+
+        if (avctx->internal->skip_samples > 0 && got_frame &&
+            !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
+            if(frame->nb_samples <= avctx->internal->skip_samples){
+                got_frame = 0;
+                avctx->internal->skip_samples -= frame->nb_samples;
+                av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
+                       avctx->internal->skip_samples);
+            } else {
+                av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
+                                frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
+                if(avctx->pkt_timebase.num && avctx->sample_rate) {
+                    int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
+                                                   (AVRational){1, avctx->sample_rate},
+                                                   avctx->pkt_timebase);
+                    if(frame->pts!=AV_NOPTS_VALUE)
+                        frame->pts += diff_ts;
+#if FF_API_PKT_PTS
+FF_DISABLE_DEPRECATION_WARNINGS
+                    if(frame->pkt_pts!=AV_NOPTS_VALUE)
+                        frame->pkt_pts += diff_ts;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+                    if(frame->pkt_dts!=AV_NOPTS_VALUE)
+                        frame->pkt_dts += diff_ts;
+                    if (frame->pkt_duration >= diff_ts)
+                        frame->pkt_duration -= diff_ts;
+                } else {
+                    av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
+                }
+                av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
+                       avctx->internal->skip_samples, frame->nb_samples);
+                frame->nb_samples -= avctx->internal->skip_samples;
+                avctx->internal->skip_samples = 0;
+            }
+        }
+
+        if (discard_padding > 0 && discard_padding <= frame->nb_samples && got_frame &&
+            !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
+            if (discard_padding == frame->nb_samples) {
+                got_frame = 0;
+            } else {
+                if(avctx->pkt_timebase.num && avctx->sample_rate) {
+                    int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
+                                                   (AVRational){1, avctx->sample_rate},
+                                                   avctx->pkt_timebase);
+                    frame->pkt_duration = diff_ts;
+                } else {
+                    av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
+                }
+                av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
+                       (int)discard_padding, frame->nb_samples);
+                frame->nb_samples -= discard_padding;
+            }
+        }
+
+        if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && got_frame) {
+            AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
+            if (fside) {
+                AV_WL32(fside->data, avctx->internal->skip_samples);
+                AV_WL32(fside->data + 4, discard_padding);
+                AV_WL8(fside->data + 8, skip_reason);
+                AV_WL8(fside->data + 9, discard_reason);
+                avctx->internal->skip_samples = 0;
+            }
+        }
+    }
+
+    if (avctx->codec->type == AVMEDIA_TYPE_AUDIO &&
+        !avci->showed_multi_packet_warning &&
+        ret >= 0 && ret != pkt->size && !(avctx->codec->capabilities & AV_CODEC_CAP_SUBFRAMES)) {
+        av_log(avctx, AV_LOG_WARNING, "Multiple frames in a packet.\n");
+        avci->showed_multi_packet_warning = 1;
+    }
+
+    if (!got_frame)
+        av_frame_unref(frame);
+
+    if (ret >= 0 && avctx->codec->type == AVMEDIA_TYPE_VIDEO && !(avctx->flags & AV_CODEC_FLAG_TRUNCATED))
+        ret = pkt->size;
+
+#if FF_API_AVCTX_TIMEBASE
+    if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
+        avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
+#endif
+
+    /* do not stop draining when actual_got_frame != 0 or ret < 0 */
+    /* got_frame == 0 but actual_got_frame != 0 when frame is discarded */
+    if (avctx->internal->draining && !actual_got_frame) {
+        if (ret < 0) {
+            /* prevent infinite loop if a decoder wrongly always return error on draining */
+            /* reasonable nb_errors_max = maximum b frames + thread count */
+            int nb_errors_max = 20 + (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME ?
+                                avctx->thread_count : 1);
+
+            if (avci->nb_draining_errors++ >= nb_errors_max) {
+                av_log(avctx, AV_LOG_ERROR, "Too many errors when draining, this is a bug. "
+                       "Stop draining and force EOF.\n");
+                avci->draining_done = 1;
+                ret = AVERROR_BUG;
+            }
+        } else {
+            avci->draining_done = 1;
+        }
+    }
+
+    avci->compat_decode_consumed += ret;
+
+    if (ret >= pkt->size || ret < 0) {
+        av_packet_unref(pkt);
+    } else {
+        int consumed = ret;
+
+        pkt->data                += consumed;
+        pkt->size                -= consumed;
+        avci->last_pkt_props->size -= consumed; // See extract_packet_props() comment.
+        pkt->pts                  = AV_NOPTS_VALUE;
+        pkt->dts                  = AV_NOPTS_VALUE;
+        avci->last_pkt_props->pts = AV_NOPTS_VALUE;
+        avci->last_pkt_props->dts = AV_NOPTS_VALUE;
+    }
+
+    if (got_frame)
+        av_assert0(frame->buf[0]);
+
+    return ret < 0 ? ret : 0;
+}
+
+static int decode_simple_receive_frame(AVCodecContext *avctx, AVFrame *frame)
+{
+    int ret;
+
+    while (!frame->buf[0]) {
+        ret = decode_simple_internal(avctx, frame);
+        if (ret < 0)
+            return ret;
+    }
+
+    return 0;
+}
+
+static int decode_receive_frame_internal(AVCodecContext *avctx, AVFrame *frame)
+{
+    AVCodecInternal *avci = avctx->internal;
+    int ret;
+
+    av_assert0(!frame->buf[0]);
+
+    if (avctx->codec->receive_frame)
+        ret = avctx->codec->receive_frame(avctx, frame);
+    else
+        ret = decode_simple_receive_frame(avctx, frame);
+
+    if (ret == AVERROR_EOF)
+        avci->draining_done = 1;
+
+    if (!ret) {
+        /* the only case where decode data is not set should be decoders
+         * that do not call ff_get_buffer() */
+        av_assert0((frame->private_ref && frame->private_ref->size == sizeof(FrameDecodeData)) ||
+                   !(avctx->codec->capabilities & AV_CODEC_CAP_DR1));
+
+        if (frame->private_ref) {
+            FrameDecodeData *fdd = (FrameDecodeData*)frame->private_ref->data;
+
+            if (fdd->post_process) {
+                ret = fdd->post_process(avctx, frame);
+                if (ret < 0) {
+                    av_frame_unref(frame);
+                    return ret;
+                }
+            }
+        }
+    }
+
+    /* free the per-frame decode data */
+    av_buffer_unref(&frame->private_ref);
+
+    return ret;
+}
+
+int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
+{
+    AVCodecInternal *avci = avctx->internal;
+    int ret;
+
+    if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
+        return AVERROR(EINVAL);
+
+    if (avctx->internal->draining)
+        return AVERROR_EOF;
+
+    if (avpkt && !avpkt->size && avpkt->data)
+        return AVERROR(EINVAL);
+
+    av_packet_unref(avci->buffer_pkt);
+    if (avpkt && (avpkt->data || avpkt->side_data_elems)) {
+        ret = av_packet_ref(avci->buffer_pkt, avpkt);
+        if (ret < 0)
+            return ret;
+    }
+
+    ret = av_bsf_send_packet(avci->filter.bsfs[0], avci->buffer_pkt);
+    if (ret < 0) {
+        av_packet_unref(avci->buffer_pkt);
+        return ret;
+    }
+
+    if (!avci->buffer_frame->buf[0]) {
+        ret = decode_receive_frame_internal(avctx, avci->buffer_frame);
+        if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
+            return ret;
+    }
+
+    return 0;
+}
+
+static int apply_cropping(AVCodecContext *avctx, AVFrame *frame)
+{
+    /* make sure we are noisy about decoders returning invalid cropping data */
+    if (frame->crop_left >= INT_MAX - frame->crop_right        ||
+        frame->crop_top  >= INT_MAX - frame->crop_bottom       ||
+        (frame->crop_left + frame->crop_right) >= frame->width ||
+        (frame->crop_top + frame->crop_bottom) >= frame->height) {
+        av_log(avctx, AV_LOG_WARNING,
+               "Invalid cropping information set by a decoder: "
+               "%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER" "
+               "(frame size %dx%d). This is a bug, please report it\n",
+               frame->crop_left, frame->crop_right, frame->crop_top, frame->crop_bottom,
+               frame->width, frame->height);
+        frame->crop_left   = 0;
+        frame->crop_right  = 0;
+        frame->crop_top    = 0;
+        frame->crop_bottom = 0;
+        return 0;
+    }
+
+    if (!avctx->apply_cropping)
+        return 0;
+
+    return av_frame_apply_cropping(frame, avctx->flags & AV_CODEC_FLAG_UNALIGNED ?
+                                          AV_FRAME_CROP_UNALIGNED : 0);
+}
+
+int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
+{
+    AVCodecInternal *avci = avctx->internal;
+    int ret, changed;
+
+    av_frame_unref(frame);
+
+    if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
+        return AVERROR(EINVAL);
+
+    if (avci->buffer_frame->buf[0]) {
+        av_frame_move_ref(frame, avci->buffer_frame);
+    } else {
+        ret = decode_receive_frame_internal(avctx, frame);
+        if (ret < 0)
+            return ret;
+    }
+
+    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+        ret = apply_cropping(avctx, frame);
+        if (ret < 0) {
+            av_frame_unref(frame);
+            return ret;
+        }
+    }
+
+    avctx->frame_number++;
+
+    if (avctx->flags & AV_CODEC_FLAG_DROPCHANGED) {
+
+        if (avctx->frame_number == 1) {
+            avci->initial_format = frame->format;
+            switch(avctx->codec_type) {
+            case AVMEDIA_TYPE_VIDEO:
+                avci->initial_width  = frame->width;
+                avci->initial_height = frame->height;
+                break;
+            case AVMEDIA_TYPE_AUDIO:
+                avci->initial_sample_rate = frame->sample_rate ? frame->sample_rate :
+                                                                 avctx->sample_rate;
+                avci->initial_channels       = frame->channels;
+                avci->initial_channel_layout = frame->channel_layout;
+                break;
+            }
+        }
+
+        if (avctx->frame_number > 1) {
+            changed = avci->initial_format != frame->format;
+
+           switch(avctx->codec_type) {
+            case AVMEDIA_TYPE_VIDEO:
+                changed |= avci->initial_width  != frame->width ||
+                           avci->initial_height != frame->height;
+                break;
+            case AVMEDIA_TYPE_AUDIO:
+                changed |= avci->initial_sample_rate    != frame->sample_rate ||
+                           avci->initial_sample_rate    != avctx->sample_rate ||
+                           avci->initial_channels       != frame->channels ||
+                           avci->initial_channel_layout != frame->channel_layout;
+                break;
+            }
+
+            if (changed) {
+                avci->changed_frames_dropped++;
+                av_log(avctx, AV_LOG_INFO, "dropped changed frame #%d pts %"PRId64
+                                            " drop count: %d \n",
+                                            avctx->frame_number, frame->pts,
+                                            avci->changed_frames_dropped);
+                av_frame_unref(frame);
+                return AVERROR_INPUT_CHANGED;
+            }
+        }
+    }
+    return 0;
+}
+
+static int compat_decode(AVCodecContext *avctx, AVFrame *frame,
+                         int *got_frame, const AVPacket *pkt)
+{
+    AVCodecInternal *avci = avctx->internal;
+    int ret = 0;
+
+    av_assert0(avci->compat_decode_consumed == 0);
+
+    if (avci->draining_done && pkt && pkt->size != 0) {
+        av_log(avctx, AV_LOG_WARNING, "Got unexpected packet after EOF\n");
+        avcodec_flush_buffers(avctx);
+    }
+
+    *got_frame = 0;
+    avci->compat_decode = 1;
+
+    if (avci->compat_decode_partial_size > 0 &&
+        avci->compat_decode_partial_size != pkt->size) {
+        av_log(avctx, AV_LOG_ERROR,
+               "Got unexpected packet size after a partial decode\n");
+        ret = AVERROR(EINVAL);
+        goto finish;
+    }
+
+    if (!avci->compat_decode_partial_size) {
+        ret = avcodec_send_packet(avctx, pkt);
+        if (ret == AVERROR_EOF)
+            ret = 0;
+        else if (ret == AVERROR(EAGAIN)) {
+            /* we fully drain all the output in each decode call, so this should not
+             * ever happen */
+            ret = AVERROR_BUG;
+            goto finish;
+        } else if (ret < 0)
+            goto finish;
+    }
+
+    while (ret >= 0) {
+        ret = avcodec_receive_frame(avctx, frame);
+        if (ret < 0) {
+            if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
+                ret = 0;
+            goto finish;
+        }
+
+        if (frame != avci->compat_decode_frame) {
+            if (!avctx->refcounted_frames) {
+                ret = unrefcount_frame(avci, frame);
+                if (ret < 0)
+                    goto finish;
+            }
+
+            *got_frame = 1;
+            frame = avci->compat_decode_frame;
+        } else {
+            if (!avci->compat_decode_warned) {
+                av_log(avctx, AV_LOG_WARNING, "The deprecated avcodec_decode_* "
+                       "API cannot return all the frames for this decoder. "
+                       "Some frames will be dropped. Update your code to the "
+                       "new decoding API to fix this.\n");
+                avci->compat_decode_warned = 1;
+            }
+        }
+
+        if (avci->draining || (!avctx->codec->bsfs && avci->compat_decode_consumed < pkt->size))
+            break;
+    }
+
+finish:
+    if (ret == 0) {
+        /* if there are any bsfs then assume full packet is always consumed */
+        if (avctx->codec->bsfs)
+            ret = pkt->size;
+        else
+            ret = FFMIN(avci->compat_decode_consumed, pkt->size);
+    }
+    avci->compat_decode_consumed = 0;
+    avci->compat_decode_partial_size = (ret >= 0) ? pkt->size - ret : 0;
+
+    return ret;
+}
+
+int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
+                                              int *got_picture_ptr,
+                                              const AVPacket *avpkt)
+{
+    return compat_decode(avctx, picture, got_picture_ptr, avpkt);
+}
+
+int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
+                                              AVFrame *frame,
+                                              int *got_frame_ptr,
+                                              const AVPacket *avpkt)
+{
+    return compat_decode(avctx, frame, got_frame_ptr, avpkt);
+}
+
+static void get_subtitle_defaults(AVSubtitle *sub)
+{
+    memset(sub, 0, sizeof(*sub));
+    sub->pts = AV_NOPTS_VALUE;
+}
+
+#define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
+static int recode_subtitle(AVCodecContext *avctx,
+                           AVPacket *outpkt, const AVPacket *inpkt)
+{
+#if CONFIG_ICONV
+    iconv_t cd = (iconv_t)-1;
+    int ret = 0;
+    char *inb, *outb;
+    size_t inl, outl;
+    AVPacket tmp;
+#endif
+
+    if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
+        return 0;
+
+#if CONFIG_ICONV
+    cd = iconv_open("UTF-8", avctx->sub_charenc);
+    av_assert0(cd != (iconv_t)-1);
+
+    inb = inpkt->data;
+    inl = inpkt->size;
+
+    if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
+        av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
+        ret = AVERROR(ENOMEM);
+        goto end;
+    }
+
+    ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
+    if (ret < 0)
+        goto end;
+    outpkt->buf  = tmp.buf;
+    outpkt->data = tmp.data;
+    outpkt->size = tmp.size;
+    outb = outpkt->data;
+    outl = outpkt->size;
+
+    if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
+        iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
+        outl >= outpkt->size || inl != 0) {
+        ret = FFMIN(AVERROR(errno), -1);
+        av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
+               "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
+        av_packet_unref(&tmp);
+        goto end;
+    }
+    outpkt->size -= outl;
+    memset(outpkt->data + outpkt->size, 0, outl);
+
+end:
+    if (cd != (iconv_t)-1)
+        iconv_close(cd);
+    return ret;
+#else
+    av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
+    return AVERROR(EINVAL);
+#endif
+}
+
+static int utf8_check(const uint8_t *str)
+{
+    const uint8_t *byte;
+    uint32_t codepoint, min;
+
+    while (*str) {
+        byte = str;
+        GET_UTF8(codepoint, *(byte++), return 0;);
+        min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
+              1 << (5 * (byte - str) - 4);
+        if (codepoint < min || codepoint >= 0x110000 ||
+            codepoint == 0xFFFE /* BOM */ ||
+            codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
+            return 0;
+        str = byte;
+    }
+    return 1;
+}
+
+#if FF_API_ASS_TIMING
+static void insert_ts(AVBPrint *buf, int ts)
+{
+    if (ts == -1) {
+        av_bprintf(buf, "9:59:59.99,");
+    } else {
+        int h, m, s;
+
+        h = ts/360000;  ts -= 360000*h;
+        m = ts/  6000;  ts -=   6000*m;
+        s = ts/   100;  ts -=    100*s;
+        av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts);
+    }
+}
+
+static int convert_sub_to_old_ass_form(AVSubtitle *sub, const AVPacket *pkt, AVRational tb)
+{
+    int i;
+    AVBPrint buf;
+
+    av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
+
+    for (i = 0; i < sub->num_rects; i++) {
+        char *final_dialog;
+        const char *dialog;
+        AVSubtitleRect *rect = sub->rects[i];
+        int ts_start, ts_duration = -1;
+        long int layer;
+
+        if (rect->type != SUBTITLE_ASS || !strncmp(rect->ass, "Dialogue: ", 10))
+            continue;
+
+        av_bprint_clear(&buf);
+
+        /* skip ReadOrder */
+        dialog = strchr(rect->ass, ',');
+        if (!dialog)
+            continue;
+        dialog++;
+
+        /* extract Layer or Marked */
+        layer = strtol(dialog, (char**)&dialog, 10);
+        if (*dialog != ',')
+            continue;
+        dialog++;
+
+        /* rescale timing to ASS time base (ms) */
+        ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100));
+        if (pkt->duration != -1)
+            ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100));
+        sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration);
+
+        /* construct ASS (standalone file form with timestamps) string */
+        av_bprintf(&buf, "Dialogue: %ld,", layer);
+        insert_ts(&buf, ts_start);
+        insert_ts(&buf, ts_duration == -1 ? -1 : ts_start + ts_duration);
+        av_bprintf(&buf, "%s\r\n", dialog);
+
+        final_dialog = av_strdup(buf.str);
+        if (!av_bprint_is_complete(&buf) || !final_dialog) {
+            av_freep(&final_dialog);
+            av_bprint_finalize(&buf, NULL);
+            return AVERROR(ENOMEM);
+        }
+        av_freep(&rect->ass);
+        rect->ass = final_dialog;
+    }
+
+    av_bprint_finalize(&buf, NULL);
+    return 0;
+}
+#endif
+
+int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
+                             int *got_sub_ptr,
+                             AVPacket *avpkt)
+{
+    int i, ret = 0;
+
+    if (!avpkt->data && avpkt->size) {
+        av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
+        return AVERROR(EINVAL);
+    }
+    if (!avctx->codec)
+        return AVERROR(EINVAL);
+    if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
+        av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
+        return AVERROR(EINVAL);
+    }
+
+    *got_sub_ptr = 0;
+    get_subtitle_defaults(sub);
+
+    if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
+        AVPacket pkt_recoded = *avpkt;
+
+        ret = recode_subtitle(avctx, &pkt_recoded, avpkt);
+        if (ret < 0) {
+            *got_sub_ptr = 0;
+        } else {
+             ret = extract_packet_props(avctx->internal, &pkt_recoded);
+             if (ret < 0)
+                return ret;
+
+            if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE)
+                sub->pts = av_rescale_q(avpkt->pts,
+                                        avctx->pkt_timebase, AV_TIME_BASE_Q);
+            ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
+            av_assert1((ret >= 0) >= !!*got_sub_ptr &&
+                       !!*got_sub_ptr >= !!sub->num_rects);
+
+#if FF_API_ASS_TIMING
+            if (avctx->sub_text_format == FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS
+                && *got_sub_ptr && sub->num_rects) {
+                const AVRational tb = avctx->pkt_timebase.num ? avctx->pkt_timebase
+                                                              : avctx->time_base;
+                int err = convert_sub_to_old_ass_form(sub, avpkt, tb);
+                if (err < 0)
+                    ret = err;
+            }
+#endif
+
+            if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
+                avctx->pkt_timebase.num) {
+                AVRational ms = { 1, 1000 };
+                sub->end_display_time = av_rescale_q(avpkt->duration,
+                                                     avctx->pkt_timebase, ms);
+            }
+
+            if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
+                sub->format = 0;
+            else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
+                sub->format = 1;
+
+            for (i = 0; i < sub->num_rects; i++) {
+                if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_IGNORE &&
+                    sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
+                    av_log(avctx, AV_LOG_ERROR,
+                           "Invalid UTF-8 in decoded subtitles text; "
+                           "maybe missing -sub_charenc option\n");
+                    avsubtitle_free(sub);
+                    ret = AVERROR_INVALIDDATA;
+                    break;
+                }
+            }
+
+            if (avpkt->data != pkt_recoded.data) { // did we recode?
+                /* prevent from destroying side data from original packet */
+                pkt_recoded.side_data = NULL;
+                pkt_recoded.side_data_elems = 0;
+
+                av_packet_unref(&pkt_recoded);
+            }
+        }
+
+        if (*got_sub_ptr)
+            avctx->frame_number++;
+    }
+
+    return ret;
+}
+
+enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *avctx,
+                                              const enum AVPixelFormat *fmt)
+{
+    const AVPixFmtDescriptor *desc;
+    const AVCodecHWConfig *config;
+    int i, n;
+
+    // If a device was supplied when the codec was opened, assume that the
+    // user wants to use it.
+    if (avctx->hw_device_ctx && avctx->codec->hw_configs) {
+        AVHWDeviceContext *device_ctx =
+            (AVHWDeviceContext*)avctx->hw_device_ctx->data;
+        for (i = 0;; i++) {
+            config = &avctx->codec->hw_configs[i]->public;
+            if (!config)
+                break;
+            if (!(config->methods &
+                  AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX))
+                continue;
+            if (device_ctx->type != config->device_type)
+                continue;
+            for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++) {
+                if (config->pix_fmt == fmt[n])
+                    return fmt[n];
+            }
+        }
+    }
+    // No device or other setup, so we have to choose from things which
+    // don't any other external information.
+
+    // If the last element of the list is a software format, choose it
+    // (this should be best software format if any exist).
+    for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++);
+    desc = av_pix_fmt_desc_get(fmt[n - 1]);
+    if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
+        return fmt[n - 1];
+
+    // Finally, traverse the list in order and choose the first entry
+    // with no external dependencies (if there is no hardware configuration
+    // information available then this just picks the first entry).
+    for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++) {
+        for (i = 0;; i++) {
+            config = avcodec_get_hw_config(avctx->codec, i);
+            if (!config)
+                break;
+            if (config->pix_fmt == fmt[n])
+                break;
+        }
+        if (!config) {
+            // No specific config available, so the decoder must be able
+            // to handle this format without any additional setup.
+            return fmt[n];
+        }
+        if (config->methods & AV_CODEC_HW_CONFIG_METHOD_INTERNAL) {
+            // Usable with only internal setup.
+            return fmt[n];
+        }
+    }
+
+    // Nothing is usable, give up.
+    return AV_PIX_FMT_NONE;
+}
+
+int ff_decode_get_hw_frames_ctx(AVCodecContext *avctx,
+                                enum AVHWDeviceType dev_type)
+{
+    AVHWDeviceContext *device_ctx;
+    AVHWFramesContext *frames_ctx;
+    int ret;
+
+    if (!avctx->hwaccel)
+        return AVERROR(ENOSYS);
+
+    if (avctx->hw_frames_ctx)
+        return 0;
+    if (!avctx->hw_device_ctx) {
+        av_log(avctx, AV_LOG_ERROR, "A hardware frames or device context is "
+                "required for hardware accelerated decoding.\n");
+        return AVERROR(EINVAL);
+    }
+
+    device_ctx = (AVHWDeviceContext *)avctx->hw_device_ctx->data;
+    if (device_ctx->type != dev_type) {
+        av_log(avctx, AV_LOG_ERROR, "Device type %s expected for hardware "
+               "decoding, but got %s.\n", av_hwdevice_get_type_name(dev_type),
+               av_hwdevice_get_type_name(device_ctx->type));
+        return AVERROR(EINVAL);
+    }
+
+    ret = avcodec_get_hw_frames_parameters(avctx,
+                                           avctx->hw_device_ctx,
+                                           avctx->hwaccel->pix_fmt,
+                                           &avctx->hw_frames_ctx);
+    if (ret < 0)
+        return ret;
+
+    frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
+
+
+    if (frames_ctx->initial_pool_size) {
+        // We guarantee 4 base work surfaces. The function above guarantees 1
+        // (the absolute minimum), so add the missing count.
+        frames_ctx->initial_pool_size += 3;
+    }
+
+    ret = av_hwframe_ctx_init(avctx->hw_frames_ctx);
+    if (ret < 0) {
+        av_buffer_unref(&avctx->hw_frames_ctx);
+        return ret;
+    }
+
+    return 0;
+}
+
+int avcodec_get_hw_frames_parameters(AVCodecContext *avctx,
+                                     AVBufferRef *device_ref,
+                                     enum AVPixelFormat hw_pix_fmt,
+                                     AVBufferRef **out_frames_ref)
+{
+    AVBufferRef *frames_ref = NULL;
+    const AVCodecHWConfigInternal *hw_config;
+    const AVHWAccel *hwa;
+    int i, ret;
+
+    for (i = 0;; i++) {
+        hw_config = avctx->codec->hw_configs[i];
+        if (!hw_config)
+            return AVERROR(ENOENT);
+        if (hw_config->public.pix_fmt == hw_pix_fmt)
+            break;
+    }
+
+    hwa = hw_config->hwaccel;
+    if (!hwa || !hwa->frame_params)
+        return AVERROR(ENOENT);
+
+    frames_ref = av_hwframe_ctx_alloc(device_ref);
+    if (!frames_ref)
+        return AVERROR(ENOMEM);
+
+    ret = hwa->frame_params(avctx, frames_ref);
+    if (ret >= 0) {
+        AVHWFramesContext *frames_ctx = (AVHWFramesContext*)frames_ref->data;
+
+        if (frames_ctx->initial_pool_size) {
+            // If the user has requested that extra output surfaces be
+            // available then add them here.
+            if (avctx->extra_hw_frames > 0)
+                frames_ctx->initial_pool_size += avctx->extra_hw_frames;
+
+            // If frame threading is enabled then an extra surface per thread
+            // is also required.
+            if (avctx->active_thread_type & FF_THREAD_FRAME)
+                frames_ctx->initial_pool_size += avctx->thread_count;
+        }
+
+        *out_frames_ref = frames_ref;
+    } else {
+        av_buffer_unref(&frames_ref);
+    }
+    return ret;
+}
+
+static int hwaccel_init(AVCodecContext *avctx,
+                        const AVCodecHWConfigInternal *hw_config)
+{
+    const AVHWAccel *hwaccel;
+    int err;
+
+    hwaccel = hw_config->hwaccel;
+    if (hwaccel->capabilities & AV_HWACCEL_CODEC_CAP_EXPERIMENTAL &&
+        avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
+        av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n",
+               hwaccel->name);
+        return AVERROR_PATCHWELCOME;
+    }
+
+    if (hwaccel->priv_data_size) {
+        avctx->internal->hwaccel_priv_data =
+            av_mallocz(hwaccel->priv_data_size);
+        if (!avctx->internal->hwaccel_priv_data)
+            return AVERROR(ENOMEM);
+    }
+
+    avctx->hwaccel = hwaccel;
+    if (hwaccel->init) {
+        err = hwaccel->init(avctx);
+        if (err < 0) {
+            av_log(avctx, AV_LOG_ERROR, "Failed setup for format %s: "
+                   "hwaccel initialisation returned error.\n",
+                   av_get_pix_fmt_name(hw_config->public.pix_fmt));
+            av_freep(&avctx->internal->hwaccel_priv_data);
+            avctx->hwaccel = NULL;
+            return err;
+        }
+    }
+
+    return 0;
+}
+
+static void hwaccel_uninit(AVCodecContext *avctx)
+{
+    if (avctx->hwaccel && avctx->hwaccel->uninit)
+        avctx->hwaccel->uninit(avctx);
+
+    av_freep(&avctx->internal->hwaccel_priv_data);
+
+    avctx->hwaccel = NULL;
+
+    av_buffer_unref(&avctx->hw_frames_ctx);
+}
+
+int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
+{
+    const AVPixFmtDescriptor *desc;
+    enum AVPixelFormat *choices;
+    enum AVPixelFormat ret, user_choice;
+    const AVCodecHWConfigInternal *hw_config;
+    const AVCodecHWConfig *config;
+    int i, n, err;
+
+    // Find end of list.
+    for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++);
+    // Must contain at least one entry.
+    av_assert0(n >= 1);
+    // If a software format is available, it must be the last entry.
+    desc = av_pix_fmt_desc_get(fmt[n - 1]);
+    if (desc->flags & AV_PIX_FMT_FLAG_HWACCEL) {
+        // No software format is available.
+    } else {
+        avctx->sw_pix_fmt = fmt[n - 1];
+    }
+
+    choices = av_malloc_array(n + 1, sizeof(*choices));
+    if (!choices)
+        return AV_PIX_FMT_NONE;
+
+    memcpy(choices, fmt, (n + 1) * sizeof(*choices));
+
+    for (;;) {
+        // Remove the previous hwaccel, if there was one.
+        hwaccel_uninit(avctx);
+
+        user_choice = avctx->get_format(avctx, choices);
+        if (user_choice == AV_PIX_FMT_NONE) {
+            // Explicitly chose nothing, give up.
+            ret = AV_PIX_FMT_NONE;
+            break;
+        }
+
+        desc = av_pix_fmt_desc_get(user_choice);
+        if (!desc) {
+            av_log(avctx, AV_LOG_ERROR, "Invalid format returned by "
+                   "get_format() callback.\n");
+            ret = AV_PIX_FMT_NONE;
+            break;
+        }
+        av_log(avctx, AV_LOG_DEBUG, "Format %s chosen by get_format().\n",
+               desc->name);
+
+        for (i = 0; i < n; i++) {
+            if (choices[i] == user_choice)
+                break;
+        }
+        if (i == n) {
+            av_log(avctx, AV_LOG_ERROR, "Invalid return from get_format(): "
+                   "%s not in possible list.\n", desc->name);
+            ret = AV_PIX_FMT_NONE;
+            break;
+        }
+
+        if (avctx->codec->hw_configs) {
+            for (i = 0;; i++) {
+                hw_config = avctx->codec->hw_configs[i];
+                if (!hw_config)
+                    break;
+                if (hw_config->public.pix_fmt == user_choice)
+                    break;
+            }
+        } else {
+            hw_config = NULL;
+        }
+
+        if (!hw_config) {
+            // No config available, so no extra setup required.
+            ret = user_choice;
+            break;
+        }
+        config = &hw_config->public;
+
+        if (config->methods &
+            AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX &&
+            avctx->hw_frames_ctx) {
+            const AVHWFramesContext *frames_ctx =
+                (AVHWFramesContext*)avctx->hw_frames_ctx->data;
+            if (frames_ctx->format != user_choice) {
+                av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: "
+                       "does not match the format of the provided frames "
+                       "context.\n", desc->name);
+                goto try_again;
+            }
+        } else if (config->methods &
+                   AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX &&
+                   avctx->hw_device_ctx) {
+            const AVHWDeviceContext *device_ctx =
+                (AVHWDeviceContext*)avctx->hw_device_ctx->data;
+            if (device_ctx->type != config->device_type) {
+                av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: "
+                       "does not match the type of the provided device "
+                       "context.\n", desc->name);
+                goto try_again;
+            }
+        } else if (config->methods &
+                   AV_CODEC_HW_CONFIG_METHOD_INTERNAL) {
+            // Internal-only setup, no additional configuration.
+        } else if (config->methods &
+                   AV_CODEC_HW_CONFIG_METHOD_AD_HOC) {
+            // Some ad-hoc configuration we can't see and can't check.
+        } else {
+            av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: "
+                   "missing configuration.\n", desc->name);
+            goto try_again;
+        }
+        if (hw_config->hwaccel) {
+            av_log(avctx, AV_LOG_DEBUG, "Format %s requires hwaccel "
+                   "initialisation.\n", desc->name);
+            err = hwaccel_init(avctx, hw_config);
+            if (err < 0)
+                goto try_again;
+        }
+        ret = user_choice;
+        break;
+
+    try_again:
+        av_log(avctx, AV_LOG_DEBUG, "Format %s not usable, retrying "
+               "get_format() without it.\n", desc->name);
+        for (i = 0; i < n; i++) {
+            if (choices[i] == user_choice)
+                break;
+        }
+        for (; i + 1 < n; i++)
+            choices[i] = choices[i + 1];
+        --n;
+    }
+
+    av_freep(&choices);
+    return ret;
+}
+
+static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
+{
+    FramePool *pool = avctx->internal->pool;
+    int i, ret;
+
+    switch (avctx->codec_type) {
+    case AVMEDIA_TYPE_VIDEO: {
+        uint8_t *data[4];
+        int linesize[4];
+        int size[4] = { 0 };
+        int w = frame->width;
+        int h = frame->height;
+        int tmpsize, unaligned;
+
+        if (pool->format == frame->format &&
+            pool->width == frame->width && pool->height == frame->height)
+            return 0;
+
+        avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
+
+        do {
+            // NOTE: do not align linesizes individually, this breaks e.g. assumptions
+            // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
+            ret = av_image_fill_linesizes(linesize, avctx->pix_fmt, w);
+            if (ret < 0)
+                return ret;
+            // increase alignment of w for next try (rhs gives the lowest bit set in w)
+            w += w & ~(w - 1);
+
+            unaligned = 0;
+            for (i = 0; i < 4; i++)
+                unaligned |= linesize[i] % pool->stride_align[i];
+        } while (unaligned);
+
+        tmpsize = av_image_fill_pointers(data, avctx->pix_fmt, h,
+                                         NULL, linesize);
+        if (tmpsize < 0)
+            return tmpsize;
+
+        for (i = 0; i < 3 && data[i + 1]; i++)
+            size[i] = data[i + 1] - data[i];
+        size[i] = tmpsize - (data[i] - data[0]);
+
+        for (i = 0; i < 4; i++) {
+            av_buffer_pool_uninit(&pool->pools[i]);
+            pool->linesize[i] = linesize[i];
+            if (size[i]) {
+                pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
+                                                     CONFIG_MEMORY_POISONING ?
+                                                        NULL :
+                                                        av_buffer_allocz);
+                if (!pool->pools[i]) {
+                    ret = AVERROR(ENOMEM);
+                    goto fail;
+                }
+            }
+        }
+        pool->format = frame->format;
+        pool->width  = frame->width;
+        pool->height = frame->height;
+
+        break;
+        }
+    case AVMEDIA_TYPE_AUDIO: {
+        int ch     = frame->channels; //av_get_channel_layout_nb_channels(frame->channel_layout);
+        int planar = av_sample_fmt_is_planar(frame->format);
+        int planes = planar ? ch : 1;
+
+        if (pool->format == frame->format && pool->planes == planes &&
+            pool->channels == ch && frame->nb_samples == pool->samples)
+            return 0;
+
+        av_buffer_pool_uninit(&pool->pools[0]);
+        ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
+                                         frame->nb_samples, frame->format, 0);
+        if (ret < 0)
+            goto fail;
+
+        pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
+        if (!pool->pools[0]) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+
+        pool->format     = frame->format;
+        pool->planes     = planes;
+        pool->channels   = ch;
+        pool->samples = frame->nb_samples;
+        break;
+        }
+    default: av_assert0(0);
+    }
+    return 0;
+fail:
+    for (i = 0; i < 4; i++)
+        av_buffer_pool_uninit(&pool->pools[i]);
+    pool->format = -1;
+    pool->planes = pool->channels = pool->samples = 0;
+    pool->width  = pool->height = 0;
+    return ret;
+}
+
+static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
+{
+    FramePool *pool = avctx->internal->pool;
+    int planes = pool->planes;
+    int i;
+
+    frame->linesize[0] = pool->linesize[0];
+
+    if (planes > AV_NUM_DATA_POINTERS) {
+        frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
+        frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
+        frame->extended_buf  = av_mallocz_array(frame->nb_extended_buf,
+                                          sizeof(*frame->extended_buf));
+        if (!frame->extended_data || !frame->extended_buf) {
+            av_freep(&frame->extended_data);
+            av_freep(&frame->extended_buf);
+            return AVERROR(ENOMEM);
+        }
+    } else {
+        frame->extended_data = frame->data;
+        av_assert0(frame->nb_extended_buf == 0);
+    }
+
+    for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
+        frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
+        if (!frame->buf[i])
+            goto fail;
+        frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
+    }
+    for (i = 0; i < frame->nb_extended_buf; i++) {
+        frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
+        if (!frame->extended_buf[i])
+            goto fail;
+        frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
+    }
+
+    if (avctx->debug & FF_DEBUG_BUFFERS)
+        av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
+
+    return 0;
+fail:
+    av_frame_unref(frame);
+    return AVERROR(ENOMEM);
+}
+
+static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
+{
+    FramePool *pool = s->internal->pool;
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format);
+    int i;
+
+    if (pic->data[0] || pic->data[1] || pic->data[2] || pic->data[3]) {
+        av_log(s, AV_LOG_ERROR, "pic->data[*]!=NULL in avcodec_default_get_buffer\n");
+        return -1;
+    }
+
+    if (!desc) {
+        av_log(s, AV_LOG_ERROR,
+            "Unable to get pixel format descriptor for format %s\n",
+            av_get_pix_fmt_name(pic->format));
+        return AVERROR(EINVAL);
+    }
+
+    memset(pic->data, 0, sizeof(pic->data));
+    pic->extended_data = pic->data;
+
+    for (i = 0; i < 4 && pool->pools[i]; i++) {
+        pic->linesize[i] = pool->linesize[i];
+
+        pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
+        if (!pic->buf[i])
+            goto fail;
+
+        pic->data[i] = pic->buf[i]->data;
+    }
+    for (; i < AV_NUM_DATA_POINTERS; i++) {
+        pic->data[i] = NULL;
+        pic->linesize[i] = 0;
+    }
+    if (desc->flags & AV_PIX_FMT_FLAG_PAL ||
+        ((desc->flags & FF_PSEUDOPAL) && pic->data[1]))
+        avpriv_set_systematic_pal2((uint32_t *)pic->data[1], pic->format);
+
+    if (s->debug & FF_DEBUG_BUFFERS)
+        av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
+
+    return 0;
+fail:
+    av_frame_unref(pic);
+    return AVERROR(ENOMEM);
+}
+
+int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
+{
+    int ret;
+
+    if (avctx->hw_frames_ctx) {
+        ret = av_hwframe_get_buffer(avctx->hw_frames_ctx, frame, 0);
+        frame->width  = avctx->coded_width;
+        frame->height = avctx->coded_height;
+        return ret;
+    }
+
+    if ((ret = update_frame_pool(avctx, frame)) < 0)
+        return ret;
+
+    switch (avctx->codec_type) {
+    case AVMEDIA_TYPE_VIDEO:
+        return video_get_buffer(avctx, frame);
+    case AVMEDIA_TYPE_AUDIO:
+        return audio_get_buffer(avctx, frame);
+    default:
+        return -1;
+    }
+}
+
+static int add_metadata_from_side_data(const AVPacket *avpkt, AVFrame *frame)
+{
+    int size;
+    const uint8_t *side_metadata;
+
+    AVDictionary **frame_md = &frame->metadata;
+
+    side_metadata = av_packet_get_side_data(avpkt,
+                                            AV_PKT_DATA_STRINGS_METADATA, &size);
+    return av_packet_unpack_dictionary(side_metadata, size, frame_md);
+}
+
+int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
+{
+    const AVPacket *pkt = avctx->internal->last_pkt_props;
+    int i;
+    static const struct {
+        enum AVPacketSideDataType packet;
+        enum AVFrameSideDataType frame;
+    } sd[] = {
+        { AV_PKT_DATA_REPLAYGAIN ,                AV_FRAME_DATA_REPLAYGAIN },
+        { AV_PKT_DATA_DISPLAYMATRIX,              AV_FRAME_DATA_DISPLAYMATRIX },
+        { AV_PKT_DATA_SPHERICAL,                  AV_FRAME_DATA_SPHERICAL },
+        { AV_PKT_DATA_STEREO3D,                   AV_FRAME_DATA_STEREO3D },
+        { AV_PKT_DATA_AUDIO_SERVICE_TYPE,         AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
+        { AV_PKT_DATA_MASTERING_DISPLAY_METADATA, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA },
+        { AV_PKT_DATA_CONTENT_LIGHT_LEVEL,        AV_FRAME_DATA_CONTENT_LIGHT_LEVEL },
+        { AV_PKT_DATA_A53_CC,                     AV_FRAME_DATA_A53_CC },
+    };
+
+    if (pkt) {
+        frame->pts = pkt->pts;
+#if FF_API_PKT_PTS
+FF_DISABLE_DEPRECATION_WARNINGS
+        frame->pkt_pts = pkt->pts;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+        frame->pkt_pos      = pkt->pos;
+        frame->pkt_duration = pkt->duration;
+        frame->pkt_size     = pkt->size;
+
+        for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
+            int size;
+            uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
+            if (packet_sd) {
+                AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
+                                                                   sd[i].frame,
+                                                                   size);
+                if (!frame_sd)
+                    return AVERROR(ENOMEM);
+
+                memcpy(frame_sd->data, packet_sd, size);
+            }
+        }
+        add_metadata_from_side_data(pkt, frame);
+
+        if (pkt->flags & AV_PKT_FLAG_DISCARD) {
+            frame->flags |= AV_FRAME_FLAG_DISCARD;
+        } else {
+            frame->flags = (frame->flags & ~AV_FRAME_FLAG_DISCARD);
+        }
+    }
+    frame->reordered_opaque = avctx->reordered_opaque;
+
+    if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
+        frame->color_primaries = avctx->color_primaries;
+    if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
+        frame->color_trc = avctx->color_trc;
+    if (frame->colorspace == AVCOL_SPC_UNSPECIFIED)
+        frame->colorspace = avctx->colorspace;
+    if (frame->color_range == AVCOL_RANGE_UNSPECIFIED)
+        frame->color_range = avctx->color_range;
+    if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
+        frame->chroma_location = avctx->chroma_sample_location;
+
+    switch (avctx->codec->type) {
+    case AVMEDIA_TYPE_VIDEO:
+        frame->format              = avctx->pix_fmt;
+        if (!frame->sample_aspect_ratio.num)
+            frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
+
+        if (frame->width && frame->height &&
+            av_image_check_sar(frame->width, frame->height,
+                               frame->sample_aspect_ratio) < 0) {
+            av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
+                   frame->sample_aspect_ratio.num,
+                   frame->sample_aspect_ratio.den);
+            frame->sample_aspect_ratio = (AVRational){ 0, 1 };
+        }
+
+        break;
+    case AVMEDIA_TYPE_AUDIO:
+        if (!frame->sample_rate)
+            frame->sample_rate    = avctx->sample_rate;
+        if (frame->format < 0)
+            frame->format         = avctx->sample_fmt;
+        if (!frame->channel_layout) {
+            if (avctx->channel_layout) {
+                 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
+                     avctx->channels) {
+                     av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
+                            "configuration.\n");
+                     return AVERROR(EINVAL);
+                 }
+
+                frame->channel_layout = avctx->channel_layout;
+            } else {
+                if (avctx->channels > FF_SANE_NB_CHANNELS) {
+                    av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
+                           avctx->channels);
+                    return AVERROR(ENOSYS);
+                }
+            }
+        }
+        frame->channels = avctx->channels;
+        break;
+    }
+    return 0;
+}
+
+static void validate_avframe_allocation(AVCodecContext *avctx, AVFrame *frame)
+{
+    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+        int i;
+        int num_planes = av_pix_fmt_count_planes(frame->format);
+        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
+        int flags = desc ? desc->flags : 0;
+        if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PAL))
+            num_planes = 2;
+        if ((flags & FF_PSEUDOPAL) && frame->data[1])
+            num_planes = 2;
+        for (i = 0; i < num_planes; i++) {
+            av_assert0(frame->data[i]);
+        }
+        // For formats without data like hwaccel allow unused pointers to be non-NULL.
+        for (i = num_planes; num_planes > 0 && i < FF_ARRAY_ELEMS(frame->data); i++) {
+            if (frame->data[i])
+                av_log(avctx, AV_LOG_ERROR, "Buffer returned by get_buffer2() did not zero unused plane pointers\n");
+            frame->data[i] = NULL;
+        }
+    }
+}
+
+static void decode_data_free(void *opaque, uint8_t *data)
+{
+    FrameDecodeData *fdd = (FrameDecodeData*)data;
+
+    if (fdd->post_process_opaque_free)
+        fdd->post_process_opaque_free(fdd->post_process_opaque);
+
+    if (fdd->hwaccel_priv_free)
+        fdd->hwaccel_priv_free(fdd->hwaccel_priv);
+
+    av_freep(&fdd);
+}
+
+int ff_attach_decode_data(AVFrame *frame)
+{
+    AVBufferRef *fdd_buf;
+    FrameDecodeData *fdd;
+
+    av_assert1(!frame->private_ref);
+    av_buffer_unref(&frame->private_ref);
+
+    fdd = av_mallocz(sizeof(*fdd));
+    if (!fdd)
+        return AVERROR(ENOMEM);
+
+    fdd_buf = av_buffer_create((uint8_t*)fdd, sizeof(*fdd), decode_data_free,
+                               NULL, AV_BUFFER_FLAG_READONLY);
+    if (!fdd_buf) {
+        av_freep(&fdd);
+        return AVERROR(ENOMEM);
+    }
+
+    frame->private_ref = fdd_buf;
+
+    return 0;
+}
+
+static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
+{
+    const AVHWAccel *hwaccel = avctx->hwaccel;
+    int override_dimensions = 1;
+    int ret;
+
+    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+        if ((ret = av_image_check_size2(FFALIGN(avctx->width, STRIDE_ALIGN), avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx)) < 0 || avctx->pix_fmt<0) {
+            av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
+            return AVERROR(EINVAL);
+        }
+
+        if (frame->width <= 0 || frame->height <= 0) {
+            frame->width  = FFMAX(avctx->width,  AV_CEIL_RSHIFT(avctx->coded_width,  avctx->lowres));
+            frame->height = FFMAX(avctx->height, AV_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
+            override_dimensions = 0;
+        }
+
+        if (frame->data[0] || frame->data[1] || frame->data[2] || frame->data[3]) {
+            av_log(avctx, AV_LOG_ERROR, "pic->data[*]!=NULL in get_buffer_internal\n");
+            return AVERROR(EINVAL);
+        }
+    }
+    ret = ff_decode_frame_props(avctx, frame);
+    if (ret < 0)
+        return ret;
+
+    if (hwaccel) {
+        if (hwaccel->alloc_frame) {
+            ret = hwaccel->alloc_frame(avctx, frame);
+            goto end;
+        }
+    } else
+        avctx->sw_pix_fmt = avctx->pix_fmt;
+
+    ret = avctx->get_buffer2(avctx, frame, flags);
+    if (ret < 0)
+        goto end;
+
+    validate_avframe_allocation(avctx, frame);
+
+    ret = ff_attach_decode_data(frame);
+    if (ret < 0)
+        goto end;
+
+end:
+    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions &&
+        !(avctx->codec->caps_internal & FF_CODEC_CAP_EXPORTS_CROPPING)) {
+        frame->width  = avctx->width;
+        frame->height = avctx->height;
+    }
+
+    if (ret < 0)
+        av_frame_unref(frame);
+
+    return ret;
+}
+
+int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
+{
+    int ret = get_buffer_internal(avctx, frame, flags);
+    if (ret < 0) {
+        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+        frame->width = frame->height = 0;
+    }
+    return ret;
+}
+
+static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame)
+{
+    AVFrame *tmp;
+    int ret;
+
+    av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
+
+    if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
+        av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
+               frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
+        av_frame_unref(frame);
+    }
+
+    if (!frame->data[0])
+        return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
+
+    if (av_frame_is_writable(frame))
+        return ff_decode_frame_props(avctx, frame);
+
+    tmp = av_frame_alloc();
+    if (!tmp)
+        return AVERROR(ENOMEM);
+
+    av_frame_move_ref(tmp, frame);
+
+    ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
+    if (ret < 0) {
+        av_frame_free(&tmp);
+        return ret;
+    }
+
+    av_frame_copy(frame, tmp);
+    av_frame_free(&tmp);
+
+    return 0;
+}
+
+int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
+{
+    int ret = reget_buffer_internal(avctx, frame);
+    if (ret < 0)
+        av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
+    return ret;
+}
+
+static void bsfs_flush(AVCodecContext *avctx)
+{
+    DecodeFilterContext *s = &avctx->internal->filter;
+
+    for (int i = 0; i < s->nb_bsfs; i++)
+        av_bsf_flush(s->bsfs[i]);
+}
+
+void avcodec_flush_buffers(AVCodecContext *avctx)
+{
+    avctx->internal->draining      = 0;
+    avctx->internal->draining_done = 0;
+    avctx->internal->nb_draining_errors = 0;
+    av_frame_unref(avctx->internal->buffer_frame);
+    av_frame_unref(avctx->internal->compat_decode_frame);
+    av_packet_unref(avctx->internal->buffer_pkt);
+    avctx->internal->buffer_pkt_valid = 0;
+
+    av_packet_unref(avctx->internal->ds.in_pkt);
+
+    if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
+        ff_thread_flush(avctx);
+    else if (avctx->codec->flush)
+        avctx->codec->flush(avctx);
+
+    avctx->pts_correction_last_pts =
+    avctx->pts_correction_last_dts = INT64_MIN;
+
+    bsfs_flush(avctx);
+
+    if (!avctx->refcounted_frames)
+        av_frame_unref(avctx->internal->to_free);
+}
+
+void ff_decode_bsfs_uninit(AVCodecContext *avctx)
+{
+    DecodeFilterContext *s = &avctx->internal->filter;
+    int i;
+
+    for (i = 0; i < s->nb_bsfs; i++)
+        av_bsf_free(&s->bsfs[i]);
+    av_freep(&s->bsfs);
+    s->nb_bsfs = 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/decode.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/decode.h
new file mode 100644
index 000000000..c3e0e82f4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/decode.h
@@ -0,0 +1,81 @@
+/*
+ * generic decoding-related code
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DECODE_H
+#define AVCODEC_DECODE_H
+
+#include "libavutil/buffer.h"
+#include "libavutil/frame.h"
+#include "libavutil/hwcontext.h"
+
+#include "avcodec.h"
+
+/**
+ * This struct stores per-frame lavc-internal data and is attached to it via
+ * private_ref.
+ */
+typedef struct FrameDecodeData {
+    /**
+     * The callback to perform some delayed processing on the frame right
+     * before it is returned to the caller.
+     *
+     * @note This code is called at some unspecified point after the frame is
+     * returned from the decoder's decode/receive_frame call. Therefore it cannot rely
+     * on AVCodecContext being in any specific state, so it does not get to
+     * access AVCodecContext directly at all. All the state it needs must be
+     * stored in the post_process_opaque object.
+     */
+    int (*post_process)(void *logctx, AVFrame *frame);
+    void *post_process_opaque;
+    void (*post_process_opaque_free)(void *opaque);
+
+    /**
+     * Per-frame private data for hwaccels.
+     */
+    void *hwaccel_priv;
+    void (*hwaccel_priv_free)(void *priv);
+} FrameDecodeData;
+
+/**
+ * Called by decoders to get the next packet for decoding.
+ *
+ * @param pkt An empty packet to be filled with data.
+ * @return 0 if a new reference has been successfully written to pkt
+ *         AVERROR(EAGAIN) if no data is currently available
+ *         AVERROR_EOF if and end of stream has been reached, so no more data
+ *                     will be available
+ */
+int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt);
+
+int ff_decode_bsfs_init(AVCodecContext *avctx);
+
+void ff_decode_bsfs_uninit(AVCodecContext *avctx);
+
+/**
+ * Make sure avctx.hw_frames_ctx is set. If it's not set, the function will
+ * try to allocate it from hw_device_ctx. If that is not possible, an error
+ * message is printed, and an error code is returned.
+ */
+int ff_decode_get_hw_frames_ctx(AVCodecContext *avctx,
+                                enum AVHWDeviceType dev_type);
+
+int ff_attach_decode_data(AVFrame *frame);
+
+#endif /* AVCODEC_DECODE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac.c
new file mode 100644
index 000000000..d5870d6c0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac.c
@@ -0,0 +1,408 @@
+/*
+ * Copyright (C) 2007 Marco Gerards <marco@gnu.org>
+ * Copyright (C) 2009 David Conrad
+ * Copyright (C) 2011 Jordi Ortiz
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Dirac Decoder
+ * @author Marco Gerards <marco@gnu.org>, David Conrad, Jordi Ortiz <nenjordi@gmail.com>
+ */
+
+#include "libavutil/imgutils.h"
+
+#include "avcodec.h"
+#include "dirac.h"
+#include "golomb.h"
+#include "internal.h"
+#include "mpeg12data.h"
+
+#if CONFIG_DIRAC_PARSE
+
+typedef struct dirac_source_params {
+    unsigned width;
+    unsigned height;
+    uint8_t chroma_format;          ///< 0: 444  1: 422  2: 420
+
+    uint8_t interlaced;
+    uint8_t top_field_first;
+
+    uint8_t frame_rate_index;       ///< index into dirac_frame_rate[]
+    uint8_t aspect_ratio_index;     ///< index into dirac_aspect_ratio[]
+
+    uint16_t clean_width;
+    uint16_t clean_height;
+    uint16_t clean_left_offset;
+    uint16_t clean_right_offset;
+
+    uint8_t pixel_range_index;      ///< index into dirac_pixel_range_presets[]
+    uint8_t color_spec_index;       ///< index into dirac_color_spec_presets[]
+} dirac_source_params;
+
+/* defaults for source parameters */
+static const dirac_source_params dirac_source_parameters_defaults[] = {
+    {  640,  480, 2, 0, 0,  1, 1,  640,  480, 0, 0, 1, 0 },
+    {  176,  120, 2, 0, 0,  9, 2,  176,  120, 0, 0, 1, 1 },
+    {  176,  144, 2, 0, 1, 10, 3,  176,  144, 0, 0, 1, 2 },
+    {  352,  240, 2, 0, 0,  9, 2,  352,  240, 0, 0, 1, 1 },
+    {  352,  288, 2, 0, 1, 10, 3,  352,  288, 0, 0, 1, 2 },
+    {  704,  480, 2, 0, 0,  9, 2,  704,  480, 0, 0, 1, 1 },
+    {  704,  576, 2, 0, 1, 10, 3,  704,  576, 0, 0, 1, 2 },
+    {  720,  480, 1, 1, 0,  4, 2,  704,  480, 8, 0, 3, 1 },
+    {  720,  576, 1, 1, 1,  3, 3,  704,  576, 8, 0, 3, 2 },
+
+    { 1280,  720, 1, 0, 1,  7, 1, 1280,  720, 0, 0, 3, 3 },
+    { 1280,  720, 1, 0, 1,  6, 1, 1280,  720, 0, 0, 3, 3 },
+    { 1920, 1080, 1, 1, 1,  4, 1, 1920, 1080, 0, 0, 3, 3 },
+    { 1920, 1080, 1, 1, 1,  3, 1, 1920, 1080, 0, 0, 3, 3 },
+    { 1920, 1080, 1, 0, 1,  7, 1, 1920, 1080, 0, 0, 3, 3 },
+    { 1920, 1080, 1, 0, 1,  6, 1, 1920, 1080, 0, 0, 3, 3 },
+    { 2048, 1080, 0, 0, 1,  2, 1, 2048, 1080, 0, 0, 4, 4 },
+    { 4096, 2160, 0, 0, 1,  2, 1, 4096, 2160, 0, 0, 4, 4 },
+
+    { 3840, 2160, 1, 0, 1,  7, 1, 3840, 2160, 0, 0, 3, 3 },
+    { 3840, 2160, 1, 0, 1,  6, 1, 3840, 2160, 0, 0, 3, 3 },
+    { 7680, 4320, 1, 0, 1,  7, 1, 3840, 2160, 0, 0, 3, 3 },
+    { 7680, 4320, 1, 0, 1,  6, 1, 3840, 2160, 0, 0, 3, 3 },
+};
+
+/* [DIRAC_STD] Table 10.4 - Available preset pixel aspect ratio values */
+static const AVRational dirac_preset_aspect_ratios[] = {
+    {  1,  1 },
+    { 10, 11 },
+    { 12, 11 },
+    { 40, 33 },
+    { 16, 11 },
+    {  4,  3 },
+};
+
+/* [DIRAC_STD] Values 9,10 of 10.3.5 Frame Rate.
+ * Table 10.3 Available preset frame rate values
+ */
+static const AVRational dirac_frame_rate[] = {
+    { 15000, 1001 },
+    {    25,    2 },
+};
+
+/* [DIRAC_STD] This should be equivalent to Table 10.5 Available signal
+ * range presets */
+static const struct {
+    uint8_t             bitdepth;
+    enum AVColorRange   color_range;
+} pixel_range_presets[] = {
+    {  8, AVCOL_RANGE_JPEG },
+    {  8, AVCOL_RANGE_MPEG },
+    { 10, AVCOL_RANGE_MPEG },
+    { 12, AVCOL_RANGE_MPEG },
+};
+
+static const enum AVColorPrimaries dirac_primaries[] = {
+    AVCOL_PRI_BT709,
+    AVCOL_PRI_SMPTE170M,
+    AVCOL_PRI_BT470BG,
+};
+
+static const struct {
+    enum AVColorPrimaries color_primaries;
+    enum AVColorSpace colorspace;
+    enum AVColorTransferCharacteristic color_trc;
+} dirac_color_presets[] = {
+    { AVCOL_PRI_BT709,     AVCOL_SPC_BT709,   AVCOL_TRC_BT709 },
+    { AVCOL_PRI_SMPTE170M, AVCOL_SPC_BT470BG, AVCOL_TRC_BT709 },
+    { AVCOL_PRI_BT470BG,   AVCOL_SPC_BT470BG, AVCOL_TRC_BT709 },
+    { AVCOL_PRI_BT709,     AVCOL_SPC_BT709,   AVCOL_TRC_BT709 },
+    { AVCOL_PRI_BT709,     AVCOL_SPC_BT709,   AVCOL_TRC_UNSPECIFIED /* DCinema */ },
+};
+
+/* [DIRAC_STD] Table 10.2 Supported chroma sampling formats */
+static const enum AVPixelFormat dirac_pix_fmt[][3] = {
+    {AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12},
+    {AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12},
+    {AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12},
+};
+
+/* [DIRAC_STD] 10.3 Parse Source Parameters.
+ * source_parameters(base_video_format) */
+static int parse_source_parameters(AVDiracSeqHeader *dsh, GetBitContext *gb,
+                                   void *log_ctx)
+{
+    AVRational frame_rate = { 0, 0 };
+    unsigned luma_depth = 8, luma_offset = 16;
+    int idx;
+    int chroma_x_shift, chroma_y_shift;
+    int ret;
+
+    /* [DIRAC_STD] 10.3.2 Frame size. frame_size(video_params) */
+    /* [DIRAC_STD] custom_dimensions_flag */
+    if (get_bits1(gb)) {
+        dsh->width  = get_interleaved_ue_golomb(gb); /* [DIRAC_STD] FRAME_WIDTH  */
+        dsh->height = get_interleaved_ue_golomb(gb); /* [DIRAC_STD] FRAME_HEIGHT */
+    }
+
+    /* [DIRAC_STD] 10.3.3 Chroma Sampling Format.
+     *  chroma_sampling_format(video_params) */
+    /* [DIRAC_STD] custom_chroma_format_flag */
+    if (get_bits1(gb))
+        /* [DIRAC_STD] CHROMA_FORMAT_INDEX */
+        dsh->chroma_format = get_interleaved_ue_golomb(gb);
+    if (dsh->chroma_format > 2U) {
+        if (log_ctx)
+            av_log(log_ctx, AV_LOG_ERROR, "Unknown chroma format %d\n",
+                   dsh->chroma_format);
+        return AVERROR_INVALIDDATA;
+    }
+
+    /* [DIRAC_STD] 10.3.4 Scan Format. scan_format(video_params) */
+    /* [DIRAC_STD] custom_scan_format_flag */
+    if (get_bits1(gb))
+        /* [DIRAC_STD] SOURCE_SAMPLING */
+        dsh->interlaced = get_interleaved_ue_golomb(gb);
+    if (dsh->interlaced > 1U)
+        return AVERROR_INVALIDDATA;
+
+    /* [DIRAC_STD] 10.3.5 Frame Rate. frame_rate(video_params) */
+    if (get_bits1(gb)) { /* [DIRAC_STD] custom_frame_rate_flag */
+        dsh->frame_rate_index = get_interleaved_ue_golomb(gb);
+
+        if (dsh->frame_rate_index > 10U)
+            return AVERROR_INVALIDDATA;
+
+        if (!dsh->frame_rate_index) {
+            /* [DIRAC_STD] FRAME_RATE_NUMER */
+            frame_rate.num = get_interleaved_ue_golomb(gb);
+            /* [DIRAC_STD] FRAME_RATE_DENOM */
+            frame_rate.den = get_interleaved_ue_golomb(gb);
+        }
+    }
+    /* [DIRAC_STD] preset_frame_rate(video_params, index) */
+    if (dsh->frame_rate_index > 0) {
+        if (dsh->frame_rate_index <= 8)
+            frame_rate = ff_mpeg12_frame_rate_tab[dsh->frame_rate_index];
+        else
+            /* [DIRAC_STD] Table 10.3 values 9-10 */
+            frame_rate = dirac_frame_rate[dsh->frame_rate_index - 9];
+    }
+    dsh->framerate = frame_rate;
+
+    /* [DIRAC_STD] 10.3.6 Pixel Aspect Ratio.
+     * pixel_aspect_ratio(video_params) */
+    if (get_bits1(gb)) { /* [DIRAC_STD] custom_pixel_aspect_ratio_flag */
+        /* [DIRAC_STD] index */
+        dsh->aspect_ratio_index = get_interleaved_ue_golomb(gb);
+
+        if (dsh->aspect_ratio_index > 6U)
+            return AVERROR_INVALIDDATA;
+
+        if (!dsh->aspect_ratio_index) {
+            dsh->sample_aspect_ratio.num = get_interleaved_ue_golomb(gb);
+            dsh->sample_aspect_ratio.den = get_interleaved_ue_golomb(gb);
+        }
+    }
+    /* [DIRAC_STD] Take value from Table 10.4 Available preset pixel
+     *  aspect ratio values */
+    if (dsh->aspect_ratio_index > 0)
+        dsh->sample_aspect_ratio =
+            dirac_preset_aspect_ratios[dsh->aspect_ratio_index - 1];
+
+    /* [DIRAC_STD] 10.3.7 Clean area. clean_area(video_params) */
+    if (get_bits1(gb)) { /* [DIRAC_STD] custom_clean_area_flag */
+        /* [DIRAC_STD] CLEAN_WIDTH */
+        dsh->clean_width = get_interleaved_ue_golomb(gb);
+        /* [DIRAC_STD] CLEAN_HEIGHT */
+        dsh->clean_height = get_interleaved_ue_golomb(gb);
+        /* [DIRAC_STD] CLEAN_LEFT_OFFSET */
+        dsh->clean_left_offset = get_interleaved_ue_golomb(gb);
+        /* [DIRAC_STD] CLEAN_RIGHT_OFFSET */
+        dsh->clean_right_offset = get_interleaved_ue_golomb(gb);
+    }
+
+    /* [DIRAC_STD] 10.3.8 Signal range. signal_range(video_params)
+     * WARNING: Some adaptation seems to be done using the
+     * AVCOL_RANGE_MPEG/JPEG values */
+    if (get_bits1(gb)) { /* [DIRAC_STD] custom_signal_range_flag */
+        /* [DIRAC_STD] index */
+        dsh->pixel_range_index = get_interleaved_ue_golomb(gb);
+
+        if (dsh->pixel_range_index > 4U)
+            return AVERROR_INVALIDDATA;
+
+        /* This assumes either fullrange or MPEG levels only */
+        if (!dsh->pixel_range_index) {
+            luma_offset = get_interleaved_ue_golomb(gb);
+            luma_depth  = av_log2(get_interleaved_ue_golomb(gb)) + 1;
+            get_interleaved_ue_golomb(gb); /* chroma offset    */
+            get_interleaved_ue_golomb(gb); /* chroma excursion */
+            dsh->color_range = luma_offset ? AVCOL_RANGE_MPEG
+                                           : AVCOL_RANGE_JPEG;
+        }
+    }
+    /* [DIRAC_STD] Table 10.5
+     * Available signal range presets <--> pixel_range_presets */
+    if (dsh->pixel_range_index > 0) {
+        idx                = dsh->pixel_range_index - 1;
+        luma_depth         = pixel_range_presets[idx].bitdepth;
+        dsh->color_range   = pixel_range_presets[idx].color_range;
+    }
+
+    dsh->bit_depth = luma_depth;
+
+    /* Full range 8 bts uses the same pix_fmts as limited range 8 bits */
+    dsh->pixel_range_index += dsh->pixel_range_index == 1;
+
+    if (dsh->pixel_range_index < 2U)
+        return AVERROR_INVALIDDATA;
+
+    dsh->pix_fmt = dirac_pix_fmt[dsh->chroma_format][dsh->pixel_range_index-2];
+    ret = av_pix_fmt_get_chroma_sub_sample(dsh->pix_fmt, &chroma_x_shift, &chroma_y_shift);
+    if (ret)
+        return ret;
+
+    if ((dsh->width % (1<<chroma_x_shift)) || (dsh->height % (1<<chroma_y_shift))) {
+        if (log_ctx)
+            av_log(log_ctx, AV_LOG_ERROR, "Dimensions must be an integer multiple of the chroma subsampling\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    /* [DIRAC_STD] 10.3.9 Colour specification. colour_spec(video_params) */
+    if (get_bits1(gb)) { /* [DIRAC_STD] custom_colour_spec_flag */
+        /* [DIRAC_STD] index */
+        idx = dsh->color_spec_index = get_interleaved_ue_golomb(gb);
+
+        if (dsh->color_spec_index > 4U)
+            return AVERROR_INVALIDDATA;
+
+        dsh->color_primaries = dirac_color_presets[idx].color_primaries;
+        dsh->colorspace      = dirac_color_presets[idx].colorspace;
+        dsh->color_trc       = dirac_color_presets[idx].color_trc;
+
+        if (!dsh->color_spec_index) {
+            /* [DIRAC_STD] 10.3.9.1 Colour primaries */
+            if (get_bits1(gb)) {
+                idx = get_interleaved_ue_golomb(gb);
+                if (idx < 3U)
+                    dsh->color_primaries = dirac_primaries[idx];
+            }
+            /* [DIRAC_STD] 10.3.9.2 Colour matrix */
+            if (get_bits1(gb)) {
+                idx = get_interleaved_ue_golomb(gb);
+                if (!idx)
+                    dsh->colorspace = AVCOL_SPC_BT709;
+                else if (idx == 1)
+                    dsh->colorspace = AVCOL_SPC_BT470BG;
+            }
+            /* [DIRAC_STD] 10.3.9.3 Transfer function */
+            if (get_bits1(gb) && !get_interleaved_ue_golomb(gb))
+                dsh->color_trc = AVCOL_TRC_BT709;
+        }
+    } else {
+        idx                    = dsh->color_spec_index;
+        dsh->color_primaries = dirac_color_presets[idx].color_primaries;
+        dsh->colorspace      = dirac_color_presets[idx].colorspace;
+        dsh->color_trc       = dirac_color_presets[idx].color_trc;
+    }
+
+    return 0;
+}
+
+/* [DIRAC_STD] 10. Sequence Header. sequence_header() */
+int av_dirac_parse_sequence_header(AVDiracSeqHeader **pdsh,
+                                   const uint8_t *buf, size_t buf_size,
+                                   void *log_ctx)
+{
+    AVDiracSeqHeader *dsh;
+    GetBitContext gb;
+    unsigned video_format, picture_coding_mode;
+    int ret;
+
+    dsh = av_mallocz(sizeof(*dsh));
+    if (!dsh)
+        return AVERROR(ENOMEM);
+
+    ret = init_get_bits8(&gb, buf, buf_size);
+    if (ret < 0)
+        goto fail;
+
+    /* [DIRAC_SPEC] 10.1 Parse Parameters. parse_parameters() */
+    dsh->version.major = get_interleaved_ue_golomb(&gb);
+    dsh->version.minor = get_interleaved_ue_golomb(&gb);
+    dsh->profile   = get_interleaved_ue_golomb(&gb);
+    dsh->level     = get_interleaved_ue_golomb(&gb);
+    /* [DIRAC_SPEC] sequence_header() -> base_video_format as defined in
+     * 10.2 Base Video Format, table 10.1 Dirac predefined video formats */
+    video_format = get_interleaved_ue_golomb(&gb);
+
+    if (dsh->version.major < 2 && log_ctx)
+        av_log(log_ctx, AV_LOG_WARNING, "Stream is old and may not work\n");
+    else if (dsh->version.major > 2 && log_ctx)
+        av_log(log_ctx, AV_LOG_WARNING, "Stream may have unhandled features\n");
+
+    if (video_format > 20U) {
+        ret = AVERROR_INVALIDDATA;
+        goto fail;
+    }
+
+    /* Fill in defaults for the source parameters. */
+    dsh->width              = dirac_source_parameters_defaults[video_format].width;
+    dsh->height             = dirac_source_parameters_defaults[video_format].height;
+    dsh->chroma_format      = dirac_source_parameters_defaults[video_format].chroma_format;
+    dsh->interlaced         = dirac_source_parameters_defaults[video_format].interlaced;
+    dsh->top_field_first    = dirac_source_parameters_defaults[video_format].top_field_first;
+    dsh->frame_rate_index   = dirac_source_parameters_defaults[video_format].frame_rate_index;
+    dsh->aspect_ratio_index = dirac_source_parameters_defaults[video_format].aspect_ratio_index;
+    dsh->clean_width        = dirac_source_parameters_defaults[video_format].clean_width;
+    dsh->clean_height       = dirac_source_parameters_defaults[video_format].clean_height;
+    dsh->clean_left_offset  = dirac_source_parameters_defaults[video_format].clean_left_offset;
+    dsh->clean_right_offset = dirac_source_parameters_defaults[video_format].clean_right_offset;
+    dsh->pixel_range_index  = dirac_source_parameters_defaults[video_format].pixel_range_index;
+    dsh->color_spec_index   = dirac_source_parameters_defaults[video_format].color_spec_index;
+
+    /* [DIRAC_STD] 10.3 Source Parameters
+     * Override the defaults. */
+    ret = parse_source_parameters(dsh, &gb, log_ctx);
+    if (ret < 0)
+        goto fail;
+
+    /* [DIRAC_STD] picture_coding_mode shall be 0 for fields and 1 for frames
+     * currently only used to signal field coding */
+    picture_coding_mode = get_interleaved_ue_golomb(&gb);
+    if (picture_coding_mode != 0) {
+        if (log_ctx) {
+            av_log(log_ctx, AV_LOG_ERROR, "Unsupported picture coding mode %d",
+                   picture_coding_mode);
+        }
+        ret = AVERROR_INVALIDDATA;
+        goto fail;
+    }
+
+    *pdsh = dsh;
+    return 0;
+fail:
+    av_freep(&dsh);
+    *pdsh = NULL;
+    return ret;
+}
+#else
+int av_dirac_parse_sequence_header(AVDiracSeqHeader **pdsh,
+                                   const uint8_t *buf, size_t buf_size,
+                                   void *log_ctx)
+{
+    return AVERROR(ENOSYS);
+}
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac.h
new file mode 100644
index 000000000..e6d9d346d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac.h
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2007 Marco Gerards <marco@gnu.org>
+ * Copyright (C) 2009 David Conrad
+ * Copyright (C) 2011 Jordi Ortiz
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DIRAC_H
+#define AVCODEC_DIRAC_H
+
+/**
+ * @file
+ * Interface to Dirac Decoder/Encoder
+ * @author Marco Gerards <marco@gnu.org>
+ * @author David Conrad
+ * @author Jordi Ortiz
+ */
+
+#include "avcodec.h"
+
+/**
+ * The spec limits the number of wavelet decompositions to 4 for both
+ * level 1 (VC-2) and 128 (long-gop default).
+ * 5 decompositions is the maximum before >16-bit buffers are needed.
+ * Schroedinger allows this for DD 9,7 and 13,7 wavelets only, limiting
+ * the others to 4 decompositions (or 3 for the fidelity filter).
+ *
+ * We use this instead of MAX_DECOMPOSITIONS to save some memory.
+ */
+#define MAX_DWT_LEVELS 5
+
+/**
+ * Parse code values:
+ *
+ * Dirac Specification ->
+ * 9.6.1  Table 9.1
+ *
+ * VC-2 Specification  ->
+ * 10.4.1 Table 10.1
+ */
+
+enum DiracParseCodes {
+    DIRAC_PCODE_SEQ_HEADER      = 0x00,
+    DIRAC_PCODE_END_SEQ         = 0x10,
+    DIRAC_PCODE_AUX             = 0x20,
+    DIRAC_PCODE_PAD             = 0x30,
+    DIRAC_PCODE_PICTURE_CODED   = 0x08,
+    DIRAC_PCODE_PICTURE_RAW     = 0x48,
+    DIRAC_PCODE_PICTURE_LOW_DEL = 0xC8,
+    DIRAC_PCODE_PICTURE_HQ      = 0xE8,
+    DIRAC_PCODE_INTER_NOREF_CO1 = 0x0A,
+    DIRAC_PCODE_INTER_NOREF_CO2 = 0x09,
+    DIRAC_PCODE_INTER_REF_CO1   = 0x0D,
+    DIRAC_PCODE_INTER_REF_CO2   = 0x0E,
+    DIRAC_PCODE_INTRA_REF_CO    = 0x0C,
+    DIRAC_PCODE_INTRA_REF_RAW   = 0x4C,
+    DIRAC_PCODE_INTRA_REF_PICT  = 0xCC,
+    DIRAC_PCODE_MAGIC           = 0x42424344,
+};
+
+typedef struct DiracVersionInfo {
+    int major;
+    int minor;
+} DiracVersionInfo;
+
+typedef struct AVDiracSeqHeader {
+    unsigned width;
+    unsigned height;
+    uint8_t chroma_format;          ///< 0: 444  1: 422  2: 420
+
+    uint8_t interlaced;
+    uint8_t top_field_first;
+
+    uint8_t frame_rate_index;       ///< index into dirac_frame_rate[]
+    uint8_t aspect_ratio_index;     ///< index into dirac_aspect_ratio[]
+
+    uint16_t clean_width;
+    uint16_t clean_height;
+    uint16_t clean_left_offset;
+    uint16_t clean_right_offset;
+
+    uint8_t pixel_range_index;      ///< index into dirac_pixel_range_presets[]
+    uint8_t color_spec_index;       ///< index into dirac_color_spec_presets[]
+
+    int profile;
+    int level;
+
+    AVRational framerate;
+    AVRational sample_aspect_ratio;
+
+    enum AVPixelFormat pix_fmt;
+    enum AVColorRange color_range;
+    enum AVColorPrimaries color_primaries;
+    enum AVColorTransferCharacteristic color_trc;
+    enum AVColorSpace colorspace;
+
+    DiracVersionInfo version;
+    int bit_depth;
+} AVDiracSeqHeader;
+
+/**
+ * Parse a Dirac sequence header.
+ *
+ * @param dsh this function will allocate and fill an AVDiracSeqHeader struct
+ *            and write it into this pointer. The caller must free it with
+ *            av_free().
+ * @param buf the data buffer
+ * @param buf_size the size of the data buffer in bytes
+ * @param log_ctx if non-NULL, this function will log errors here
+ * @return 0 on success, a negative AVERROR code on failure
+ */
+int av_dirac_parse_sequence_header(AVDiracSeqHeader **dsh,
+                                   const uint8_t *buf, size_t buf_size,
+                                   void *log_ctx);
+
+#endif /* AVCODEC_DIRAC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac_arith.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac_arith.h
new file mode 100644
index 000000000..79526a7ca
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac_arith.h
@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2007 Marco Gerards <marco@gnu.org>
+ * Copyright (C) 2009 David Conrad
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Arithmetic decoder for Dirac
+ * @author Marco Gerards <marco@gnu.org>
+ */
+
+#ifndef AVCODEC_DIRAC_ARITH_H
+#define AVCODEC_DIRAC_ARITH_H
+
+#include "libavutil/x86/asm.h"
+#include "bytestream.h"
+#include "get_bits.h"
+
+enum dirac_arith_contexts {
+    CTX_ZPZN_F1,
+    CTX_ZPNN_F1,
+    CTX_NPZN_F1,
+    CTX_NPNN_F1,
+    CTX_ZP_F2,
+    CTX_ZP_F3,
+    CTX_ZP_F4,
+    CTX_ZP_F5,
+    CTX_ZP_F6,
+    CTX_NP_F2,
+    CTX_NP_F3,
+    CTX_NP_F4,
+    CTX_NP_F5,
+    CTX_NP_F6,
+    CTX_COEFF_DATA,
+    CTX_SIGN_NEG,
+    CTX_SIGN_ZERO,
+    CTX_SIGN_POS,
+    CTX_ZERO_BLOCK,
+    CTX_DELTA_Q_F,
+    CTX_DELTA_Q_DATA,
+    CTX_DELTA_Q_SIGN,
+
+    DIRAC_CTX_COUNT
+};
+
+// Dirac resets the arith decoder between decoding various types of data,
+// so many contexts are never used simultaneously. Thus, we can reduce
+// the number of contexts needed by reusing them.
+#define CTX_SB_F1        CTX_ZP_F5
+#define CTX_SB_DATA      0
+#define CTX_PMODE_REF1   0
+#define CTX_PMODE_REF2   1
+#define CTX_GLOBAL_BLOCK 2
+#define CTX_MV_F1        CTX_ZP_F2
+#define CTX_MV_DATA      0
+#define CTX_DC_F1        CTX_ZP_F5
+#define CTX_DC_DATA      0
+
+typedef struct {
+    unsigned low;
+    uint16_t range;
+    int16_t  counter;
+
+    const uint8_t *bytestream;
+    const uint8_t *bytestream_end;
+
+    uint16_t contexts[DIRAC_CTX_COUNT];
+    int error;
+    int overread;
+} DiracArith;
+
+extern const uint8_t ff_dirac_next_ctx[DIRAC_CTX_COUNT];
+extern const uint16_t ff_dirac_prob[256];
+extern int16_t ff_dirac_prob_branchless[256][2];
+
+static inline void renorm(DiracArith *c)
+{
+#if HAVE_FAST_CLZ
+    int shift = 14 - av_log2_16bit(c->range-1) + ((c->range-1)>>15);
+
+    c->low    <<= shift;
+    c->range  <<= shift;
+    c->counter += shift;
+#else
+    while (c->range <= 0x4000) {
+        c->low   <<= 1;
+        c->range <<= 1;
+        c->counter++;
+    }
+#endif
+}
+
+static inline void refill(DiracArith *c)
+{
+    int counter = c->counter;
+
+    if (counter >= 0) {
+        int new = bytestream_get_be16(&c->bytestream);
+
+        // the spec defines overread bits to be 1, and streams rely on this
+        if (c->bytestream > c->bytestream_end) {
+            new |= 0xff;
+            if (c->bytestream > c->bytestream_end+1)
+                new |= 0xff00;
+
+            c->bytestream = c->bytestream_end;
+            c->overread ++;
+            if (c->overread > 4)
+                c->error = AVERROR_INVALIDDATA;
+        }
+
+        c->low += new << counter;
+        counter -= 16;
+    }
+    c->counter = counter;
+}
+
+static inline int dirac_get_arith_bit(DiracArith *c, int ctx)
+{
+    int prob_zero = c->contexts[ctx];
+    int range_times_prob, bit;
+    unsigned low = c->low;
+    int    range = c->range;
+
+    range_times_prob = (c->range * prob_zero) >> 16;
+
+#if ARCH_X86 && HAVE_FAST_CMOV && HAVE_INLINE_ASM && HAVE_6REGS
+    low   -= range_times_prob << 16;
+    range -= range_times_prob;
+    bit = 0;
+    __asm__(
+        "cmpl   %5, %4 \n\t"
+        "setae  %b0    \n\t"
+        "cmovb  %3, %2 \n\t"
+        "cmovb  %5, %1 \n\t"
+        : "+q"(bit), "+r"(range), "+r"(low)
+        : "r"(c->low), "r"(c->low>>16),
+          "r"(range_times_prob)
+    );
+#else
+    bit = (low >> 16) >= range_times_prob;
+    if (bit) {
+        low   -= range_times_prob << 16;
+        range -= range_times_prob;
+    } else {
+        range  = range_times_prob;
+    }
+#endif
+
+    c->contexts[ctx] += ff_dirac_prob_branchless[prob_zero>>8][bit];
+    c->low   = low;
+    c->range = range;
+
+    renorm(c);
+    refill(c);
+    return bit;
+}
+
+static inline int dirac_get_arith_uint(DiracArith *c, int follow_ctx, int data_ctx)
+{
+    int ret = 1;
+    while (!dirac_get_arith_bit(c, follow_ctx)) {
+        if (ret >= 0x40000000) {
+            av_log(NULL, AV_LOG_ERROR, "dirac_get_arith_uint overflow\n");
+            c->error = AVERROR_INVALIDDATA;
+            return -1;
+        }
+        ret <<= 1;
+        ret += dirac_get_arith_bit(c, data_ctx);
+        follow_ctx = ff_dirac_next_ctx[follow_ctx];
+    }
+    return ret-1;
+}
+
+static inline int dirac_get_arith_int(DiracArith *c, int follow_ctx, int data_ctx)
+{
+    int ret = dirac_get_arith_uint(c, follow_ctx, data_ctx);
+    if (ret && dirac_get_arith_bit(c, data_ctx+1))
+        ret = -ret;
+    return ret;
+}
+
+void ff_dirac_init_arith_tables(void);
+void ff_dirac_init_arith_decoder(DiracArith *c, GetBitContext *gb, int length);
+
+#endif /* AVCODEC_DIRAC_ARITH_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac_dwt.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac_dwt.h
new file mode 100644
index 000000000..994dc21d7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac_dwt.h
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DIRAC_DWT_H
+#define AVCODEC_DIRAC_DWT_H
+
+#include <stdint.h>
+
+typedef int DWTELEM;
+typedef short IDWTELEM;
+
+#define MAX_DWT_SUPPORT 8
+#define MAX_DECOMPOSITIONS 8
+
+typedef struct DWTCompose {
+    uint8_t *b[MAX_DWT_SUPPORT];
+    int y;
+} DWTCompose;
+
+typedef struct DWTPlane {
+    int width;
+    int height;
+    int stride;
+    uint8_t *buf;
+    uint8_t *buf_base;
+    uint8_t *tmp;
+} DWTPlane;
+
+struct DWTContext;
+
+// Possible prototypes for vertical_compose functions
+typedef void (*vertical_compose_2tap)(uint8_t *b0, uint8_t *b1, int width);
+typedef void (*vertical_compose_3tap)(uint8_t *b0, uint8_t *b1, uint8_t *b2, int width);
+typedef void (*vertical_compose_5tap)(uint8_t *b0, uint8_t *b1, uint8_t *b2, uint8_t *b3, uint8_t *b4, int width);
+typedef void (*vertical_compose_9tap)(uint8_t *dst, uint8_t *b[8], int width);
+
+typedef struct DWTContext {
+    uint8_t *buffer;
+    uint8_t *temp;
+    int width;
+    int height;
+    int stride;
+    int decomposition_count;
+    int support;
+
+    void (*spatial_compose)(struct DWTContext *cs, int level, int width, int height, int stride);
+    void (*vertical_compose_l0)(void);
+    void (*vertical_compose_h0)(void);
+    void (*vertical_compose_l1)(void);
+    void (*vertical_compose_h1)(void);
+    void (*vertical_compose)(void);     ///< one set of lowpass and highpass combined
+    void (*horizontal_compose)(uint8_t *b, uint8_t *tmp, int width);
+
+    DWTCompose cs[MAX_DECOMPOSITIONS];
+} DWTContext;
+
+enum dwt_type {
+    DWT_SNOW_DAUB9_7,
+    DWT_SNOW_LEGALL5_3,
+    DWT_DIRAC_DD9_7,
+    DWT_DIRAC_LEGALL5_3,
+    DWT_DIRAC_DD13_7,
+    DWT_DIRAC_HAAR0,
+    DWT_DIRAC_HAAR1,
+    DWT_DIRAC_FIDELITY,
+    DWT_DIRAC_DAUB9_7,
+    DWT_NUM_TYPES
+};
+
+// -1 if an error occurred, e.g. the dwt_type isn't recognized
+int ff_spatial_idwt_init(DWTContext *d, DWTPlane *p, enum dwt_type type,
+                         int decomposition_count, int bit_depth);
+void ff_spatial_idwt_init_x86(DWTContext *d, enum dwt_type type);
+
+void ff_spatial_idwt_slice2(DWTContext *d, int y);
+
+// shared stuff for simd optimizations
+#define COMPOSE_53iL0(b0, b1, b2)\
+    (b1 - (unsigned)((int)(b0 + (unsigned)(b2) + 2) >> 2))
+
+#define COMPOSE_DIRAC53iH0(b0, b1, b2)\
+    (b1 + (unsigned)((int)(b0 + (unsigned)(b2) + 1) >> 1))
+
+#define COMPOSE_DD97iH0(b0, b1, b2, b3, b4)\
+    (int)(((unsigned)(b2) + ((int)(9U*b1 + 9U*b3 - b4 - b0 +  8) >> 4)))
+
+#define COMPOSE_DD137iL0(b0, b1, b2, b3, b4)\
+    (int)(((unsigned)(b2) - ((int)(9U*b1 + 9U*b3 - b4 - b0 + 16) >> 5)))
+
+#define COMPOSE_HAARiL0(b0, b1)\
+    ((int)(b0 - (unsigned)((int)(b1 + 1U) >> 1)))
+
+#define COMPOSE_HAARiH0(b0, b1)\
+    ((int)(b0 + (unsigned)(b1)))
+
+#define COMPOSE_FIDELITYiL0(b0, b1, b2, b3, b4, b5, b6, b7, b8)\
+    ((unsigned)b4 - ((int)(-8*(b0+(unsigned)b8) + 21*(b1+(unsigned)b7) - 46*(b2+(unsigned)b6) + 161*(b3+(unsigned)b5) + 128) >> 8))
+
+#define COMPOSE_FIDELITYiH0(b0, b1, b2, b3, b4, b5, b6, b7, b8)\
+    ((unsigned)b4 + ((int)(-2*(b0+(unsigned)b8) + 10*(b1+(unsigned)b7) - 25*(b2+(unsigned)b6) +  81*(b3+(unsigned)b5) + 128) >> 8))
+
+#define COMPOSE_DAUB97iL1(b0, b1, b2)\
+    ((unsigned)(b1) - ((int)(1817*(b0 + (unsigned)b2) + 2048) >> 12))
+
+#define COMPOSE_DAUB97iH1(b0, b1, b2)\
+    ((unsigned)(b1) - ((int)( 113*(b0 + (unsigned)b2) + 64) >> 7))
+
+#define COMPOSE_DAUB97iL0(b0, b1, b2)\
+    ((unsigned)(b1) + ((int)( 217*(b0 + (unsigned)b2) + 2048) >> 12))
+
+#define COMPOSE_DAUB97iH0(b0, b1, b2)\
+    ((unsigned)(b1) + ((int)(6497*(b0 + (unsigned)b2) + 2048) >> 12))
+
+
+#endif /* AVCODEC_DWT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac_vlc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac_vlc.h
new file mode 100644
index 000000000..42ae41b00
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dirac_vlc.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2016 Open Broadcast Systems Ltd.
+ * Author        2016 Rostislav Pehlivanov <rpehlivanov@obe.tv>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DIRAC_VLC_H
+#define AVCODEC_DIRAC_VLC_H
+
+#include "libavutil/avutil.h"
+
+/* Can be 32 bits wide for some performance gain on some machines, but it will
+ * incorrectly decode very long coefficients (usually only 1 or 2 per frame) */
+typedef uint64_t residual;
+
+#define LUT_BITS 8
+
+/* Exactly 64 bytes */
+typedef struct DiracGolombLUT {
+    residual preamble, leftover;
+    int32_t  ready[LUT_BITS];
+    int32_t  preamble_bits, leftover_bits, ready_num;
+    int8_t   need_s, sign;
+} DiracGolombLUT;
+
+av_cold int ff_dirac_golomb_reader_init(DiracGolombLUT **lut_ctx);
+
+int ff_dirac_golomb_read_32bit(DiracGolombLUT *lut_ctx, const uint8_t *buf,
+                               int bytes, uint8_t *dst, int coeffs);
+
+int ff_dirac_golomb_read_16bit(DiracGolombLUT *lut_ctx, const uint8_t *buf,
+                               int bytes, uint8_t *_dst, int coeffs);
+
+av_cold void ff_dirac_golomb_reader_end(DiracGolombLUT **lut_ctx);
+
+#endif /* AVCODEC_DIRAC_VLC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/diracdsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/diracdsp.h
new file mode 100644
index 000000000..224828d88
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/diracdsp.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2010 David Conrad
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DIRACDSP_H
+#define AVCODEC_DIRACDSP_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+typedef void (*dirac_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int h);
+typedef void (*dirac_biweight_func)(uint8_t *dst, const uint8_t *src, int stride, int log2_denom, int weightd, int weights, int h);
+
+typedef struct {
+    void (*dirac_hpel_filter)(uint8_t *dsth, uint8_t *dstv, uint8_t *dstc, const uint8_t *src, int stride, int width, int height);
+    /**
+     * dirac_pixels_tab[width][subpel]
+     * width is 2 for 32, 1 for 16, 0 for 8
+     * subpel is 0 for fpel and hpel (only need to copy from the first plane in src)
+     *           1 if an average of the first 2 planes is needed (TODO: worth it?)
+     *           2 for general qpel (avg of 4)
+     *           3 for general epel (biweight of 4 using the weights in src[4])
+     * src[0-3] is each of the hpel planes
+     * src[4] is the 1/8 pel weights if needed
+     */
+    void (*put_dirac_pixels_tab[3][4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);
+    void (*avg_dirac_pixels_tab[3][4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);
+
+    void (*put_signed_rect_clamped[3])(uint8_t *dst/*align 16*/, int dst_stride, const uint8_t *src/*align 16*/, int src_stride, int width, int height/*mod 2*/);
+    void (*put_rect_clamped)(uint8_t *dst/*align 16*/, int dst_stride, const uint8_t *src/*align 16*/, int src_stride, int width, int height/*mod 2*/);
+    void (*add_rect_clamped)(uint8_t *dst/*align 16*/, const uint16_t *src/*align 16*/, int stride, const int16_t *idwt/*align 16*/, int idwt_stride, int width, int height/*mod 2*/);
+    void (*add_dirac_obmc[3])(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
+
+    /* 0-1: int16_t and int32_t asm/c, 2-3: int16 and int32_t, C only */
+    void (*dequant_subband[4])(uint8_t *src, uint8_t *dst, ptrdiff_t stride, const int qf, const int qs, int tot_v, int tot_h);
+
+    dirac_weight_func weight_dirac_pixels_tab[3];
+    dirac_biweight_func biweight_dirac_pixels_tab[3];
+} DiracDSPContext;
+
+#define DECL_DIRAC_PIXOP(PFX, EXT)                                      \
+    void ff_ ## PFX ## _dirac_pixels8_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h); \
+    void ff_ ## PFX ## _dirac_pixels16_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h); \
+    void ff_ ## PFX ## _dirac_pixels32_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h)
+
+DECL_DIRAC_PIXOP(put, c);
+DECL_DIRAC_PIXOP(avg, c);
+DECL_DIRAC_PIXOP(put, l2_c);
+DECL_DIRAC_PIXOP(avg, l2_c);
+DECL_DIRAC_PIXOP(put, l4_c);
+DECL_DIRAC_PIXOP(avg, l4_c);
+
+void ff_diracdsp_init(DiracDSPContext *c);
+void ff_diracdsp_init_x86(DiracDSPContext* c);
+
+#endif /* AVCODEC_DIRACDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/diractab.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/diractab.h
new file mode 100644
index 000000000..2423b0729
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/diractab.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2016 Open Broadcast Systems Ltd.
+ * Author    (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DIRACTAB_H
+#define AVCODEC_DIRACTAB_H
+
+#include <stdint.h>
+
+/* Tables here are shared between the Dirac/VC-2 decoder and the VC-2 encoder */
+
+/* Default quantization tables for each wavelet transform */
+extern const uint8_t ff_dirac_default_qmat[7][4][4];
+
+/* Scaling factors needed for quantization/dequantization */
+extern const int32_t ff_dirac_qscale_tab[116];
+
+/* Scaling offsets needed for quantization/dequantization, for intra frames */
+extern const int32_t ff_dirac_qoffset_intra_tab[120];
+
+/* Scaling offsets needed for quantization/dequantization, for inter frames */
+extern const int ff_dirac_qoffset_inter_tab[122];
+
+#define DIRAC_MAX_QUANT_INDEX (FF_ARRAY_ELEMS(ff_dirac_qscale_tab))
+
+#endif /* AVCODEC_DIRACTAB_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dv_profile.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dv_profile.c
new file mode 100644
index 000000000..66505c886
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dv_profile.c
@@ -0,0 +1,341 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include <stdint.h>
+
+#include "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/log.h"
+#include "libavutil/pixdesc.h"
+
+#include "avcodec.h"
+#include "dv_profile.h"
+#include "dv_profile_internal.h"
+
+#if CONFIG_DVPROFILE
+
+static const uint8_t dv_audio_shuffle525[10][9] = {
+    {  0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */
+    {  6, 36, 66, 26, 56, 86, 16, 46, 76 },
+    { 12, 42, 72,  2, 32, 62, 22, 52, 82 },
+    { 18, 48, 78,  8, 38, 68, 28, 58, 88 },
+    { 24, 54, 84, 14, 44, 74,  4, 34, 64 },
+
+    {  1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */
+    {  7, 37, 67, 27, 57, 87, 17, 47, 77 },
+    { 13, 43, 73,  3, 33, 63, 23, 53, 83 },
+    { 19, 49, 79,  9, 39, 69, 29, 59, 89 },
+    { 25, 55, 85, 15, 45, 75,  5, 35, 65 },
+};
+
+static const uint8_t dv_audio_shuffle625[12][9] = {
+    {  0, 36,  72, 26, 62,  98, 16, 52,  88 }, /* 1st channel */
+    {  6, 42,  78, 32, 68, 104, 22, 58,  94 },
+    { 12, 48,  84,  2, 38,  74, 28, 64, 100 },
+    { 18, 54,  90,  8, 44,  80, 34, 70, 106 },
+    { 24, 60,  96, 14, 50,  86,  4, 40,  76 },
+    { 30, 66, 102, 20, 56,  92, 10, 46,  82 },
+
+    {  1, 37,  73, 27, 63,  99, 17, 53,  89 }, /* 2nd channel */
+    {  7, 43,  79, 33, 69, 105, 23, 59,  95 },
+    { 13, 49,  85,  3, 39,  75, 29, 65, 101 },
+    { 19, 55,  91,  9, 45,  81, 35, 71, 107 },
+    { 25, 61,  97, 15, 51,  87,  5, 41,  77 },
+    { 31, 67, 103, 21, 57,  93, 11, 47,  83 },
+};
+
+/* macroblock bit budgets */
+static const uint8_t block_sizes_dv2550[8] = {
+    112, 112, 112, 112, 80, 80, 0, 0,
+};
+
+static const uint8_t block_sizes_dv100[8] = {
+    80, 80, 80, 80, 80, 80, 64, 64,
+};
+
+static const AVDVProfile dv_profiles[] = {
+    { .dsf                = 0,
+      .video_stype        = 0x0,
+      .frame_size         = 120000, /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */
+      .difseg_size        = 10,
+      .n_difchan          = 1,
+      .time_base          = { 1001, 30000 },
+      .ltc_divisor        = 30,
+      .height             = 480,
+      .width              = 720,
+      .sar                = { { 8, 9 }, { 32, 27 } },
+      .pix_fmt            = AV_PIX_FMT_YUV411P,
+      .bpm                = 6,
+      .block_sizes        = block_sizes_dv2550,
+      .audio_stride       = 90,
+      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 },  /* per SMPTE-314M */
+      .audio_shuffle      = dv_audio_shuffle525, },
+    { .dsf                = 1,
+      .video_stype        = 0x0,
+      .frame_size         = 144000, /* IEC 61834 - 625/50 (PAL) */
+      .difseg_size        = 12,
+      .n_difchan          = 1,
+      .time_base          = { 1, 25 },
+      .ltc_divisor        = 25,
+      .height             = 576,
+      .width              = 720,
+      .sar                = { { 16, 15 }, { 64, 45 } },
+      .pix_fmt            = AV_PIX_FMT_YUV420P,
+      .bpm                = 6,
+      .block_sizes        = block_sizes_dv2550,
+      .audio_stride       = 108,
+      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
+      .audio_shuffle      = dv_audio_shuffle625, },
+    { .dsf                = 1,
+      .video_stype        = 0x0,
+      .frame_size         = 144000, /* SMPTE-314M - 625/50 (PAL) */
+      .difseg_size        = 12,
+      .n_difchan          = 1,
+      .time_base          = { 1, 25 },
+      .ltc_divisor        = 25,
+      .height             = 576,
+      .width              = 720,
+      .sar                = { { 16, 15 }, { 64, 45 } },
+      .pix_fmt            = AV_PIX_FMT_YUV411P,
+      .bpm                = 6,
+      .block_sizes        = block_sizes_dv2550,
+      .audio_stride       = 108,
+      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
+      .audio_shuffle      = dv_audio_shuffle625, },
+    { .dsf                = 0,
+      .video_stype        = 0x4,
+      .frame_size         = 240000, /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */
+      .difseg_size        = 10,    /* also known as "DVCPRO50" */
+      .n_difchan          = 2,
+      .time_base          = { 1001, 30000 },
+      .ltc_divisor        = 30,
+      .height             = 480,
+      .width              = 720,
+      .sar                = { { 8, 9 }, { 32, 27 } },
+      .pix_fmt            = AV_PIX_FMT_YUV422P,
+      .bpm                = 6,
+      .block_sizes        = block_sizes_dv2550,
+      .audio_stride       = 90,
+      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 },  /* per SMPTE-314M */
+      .audio_shuffle      = dv_audio_shuffle525, },
+    { .dsf                = 1,
+      .video_stype        = 0x4,
+      .frame_size         = 288000, /* SMPTE-314M - 625/50 (PAL) 50 Mbps */
+      .difseg_size        = 12,    /* also known as "DVCPRO50" */
+      .n_difchan          = 2,
+      .time_base          = { 1, 25 },
+      .ltc_divisor        = 25,
+      .height             = 576,
+      .width              = 720,
+      .sar                = { { 16, 15 }, { 64, 45 } },
+      .pix_fmt            = AV_PIX_FMT_YUV422P,
+      .bpm                = 6,
+      .block_sizes        = block_sizes_dv2550,
+      .audio_stride       = 108,
+      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
+      .audio_shuffle      = dv_audio_shuffle625, },
+    { .dsf                = 0,
+      .video_stype        = 0x14,
+      .frame_size         = 480000, /* SMPTE-370M - 1080i60 100 Mbps */
+      .difseg_size        = 10,    /* also known as "DVCPRO HD" */
+      .n_difchan          = 4,
+      .time_base          = { 1001, 30000 },
+      .ltc_divisor        = 30,
+      .height             = 1080,
+      .width              = 1280,
+      .sar                = { { 1, 1 }, { 3, 2 } },
+      .pix_fmt            = AV_PIX_FMT_YUV422P,
+      .bpm                = 8,
+      .block_sizes        = block_sizes_dv100,
+      .audio_stride       = 90,
+      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 },  /* per SMPTE-314M */
+      .audio_shuffle      = dv_audio_shuffle525, },
+    { .dsf                = 1,
+      .video_stype        = 0x14,
+      .frame_size         = 576000, /* SMPTE-370M - 1080i50 100 Mbps */
+      .difseg_size        = 12,    /* also known as "DVCPRO HD" */
+      .n_difchan          = 4,
+      .time_base          = { 1, 25 },
+      .ltc_divisor        = 25,
+      .height             = 1080,
+      .width              = 1440,
+      .sar                = { { 1, 1 }, { 4, 3 } },
+      .pix_fmt            = AV_PIX_FMT_YUV422P,
+      .bpm                = 8,
+      .block_sizes        = block_sizes_dv100,
+      .audio_stride       = 108,
+      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
+      .audio_shuffle      = dv_audio_shuffle625, },
+    { .dsf                = 0,
+      .video_stype        = 0x18,
+      .frame_size         = 240000, /* SMPTE-370M - 720p60 100 Mbps */
+      .difseg_size        = 10,    /* also known as "DVCPRO HD" */
+      .n_difchan          = 2,
+      .time_base          = { 1001, 60000 },
+      .ltc_divisor        = 60,
+      .height             = 720,
+      .width              = 960,
+      .sar                = { { 1, 1 }, { 4, 3 } },
+      .pix_fmt            = AV_PIX_FMT_YUV422P,
+      .bpm                = 8,
+      .block_sizes        = block_sizes_dv100,
+      .audio_stride       = 90,
+      .audio_min_samples  = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 },  /* per SMPTE-314M */
+      .audio_shuffle      = dv_audio_shuffle525, },
+    { .dsf                = 1,
+      .video_stype        = 0x18,
+      .frame_size         = 288000, /* SMPTE-370M - 720p50 100 Mbps */
+      .difseg_size        = 12,    /* also known as "DVCPRO HD" */
+      .n_difchan          = 2,
+      .time_base          = { 1, 50 },
+      .ltc_divisor        = 50,
+      .height             = 720,
+      .width              = 960,
+      .sar                = { { 1, 1 }, { 4, 3 } },
+      .pix_fmt            = AV_PIX_FMT_YUV422P,
+      .bpm                = 8,
+      .block_sizes        = block_sizes_dv100,
+      .audio_stride       = 90,
+      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
+      .audio_shuffle      = dv_audio_shuffle625, },
+    { .dsf                = 1,
+      .video_stype        = 0x1,
+      .frame_size         = 144000, /* IEC 61883-5 - 625/50 (PAL) */
+      .difseg_size        = 12,
+      .n_difchan          = 1,
+      .time_base          = { 1, 25 },
+      .ltc_divisor        = 25,
+      .height             = 576,
+      .width              = 720,
+      .sar                = { { 16, 15 }, { 64, 45 } },
+      .pix_fmt            = AV_PIX_FMT_YUV420P,
+      .bpm                = 6,
+      .block_sizes        = block_sizes_dv2550,
+      .audio_stride       = 108,
+      .audio_min_samples  = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
+      .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
+      .audio_shuffle      = dv_audio_shuffle625, }
+};
+
+void ff_dv_print_profiles(void *logctx, int loglevel)
+{
+    int i;
+    for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) {
+        const AVDVProfile *p = &dv_profiles[i];
+        av_log(logctx, loglevel,
+               "Frame size: %dx%d; pixel format: %s, framerate: %d/%d\n",
+               p->width, p->height, av_get_pix_fmt_name(p->pix_fmt),
+               p->time_base.den, p->time_base.num);
+    }
+}
+
+#endif /* CONFIG_DVPROFILE */
+
+const AVDVProfile* ff_dv_frame_profile(AVCodecContext* codec, const AVDVProfile *sys,
+                                       const uint8_t *frame, unsigned buf_size)
+{
+#if CONFIG_DVPROFILE
+    int i, dsf, stype;
+
+    if(buf_size < DV_PROFILE_BYTES)
+        return NULL;
+
+    dsf   = (frame[3] & 0x80) >> 7;
+    stype = frame[80 * 5 + 48 + 3] & 0x1f;
+
+    /* 576i50 25Mbps 4:1:1 is a special case */
+    if ((dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) ||
+        (stype == 31 && codec && codec->codec_tag==AV_RL32("SL25") && codec->coded_width==720 && codec->coded_height==576))
+        return &dv_profiles[2];
+
+    if(   stype == 0
+       && codec
+       && (codec->codec_tag==AV_RL32("dvsd") || codec->codec_tag==AV_RL32("CDVC"))
+       && codec->coded_width ==720
+       && codec->coded_height==576)
+        return &dv_profiles[1];
+
+    for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
+        if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
+            return &dv_profiles[i];
+
+    /* check if old sys matches and assumes corrupted input */
+    if (sys && buf_size == sys->frame_size)
+        return sys;
+
+    /* hack for trac issue #217, dv files created with QuickTime 3 */
+    if ((frame[3] & 0x7f) == 0x3f && frame[80 * 5 + 48 + 3] == 0xff)
+        return &dv_profiles[dsf];
+#endif
+
+    return NULL;
+}
+
+const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
+                                       const uint8_t *frame, unsigned buf_size)
+{
+    return ff_dv_frame_profile(NULL, sys, frame, buf_size);
+}
+
+const AVDVProfile *av_dv_codec_profile(int width, int height,
+                                       enum AVPixelFormat pix_fmt)
+{
+#if CONFIG_DVPROFILE
+    return av_dv_codec_profile2(width, height, pix_fmt, (AVRational){0, 0});
+#endif
+
+    return NULL;
+}
+
+const AVDVProfile *av_dv_codec_profile2(int width, int height,
+                                       enum AVPixelFormat pix_fmt,
+                                       AVRational frame_rate)
+{
+    const AVDVProfile *p = NULL;
+#if CONFIG_DVPROFILE
+    int i;
+    /* frame rate is necessary to select between 720p50 and 720p60 profiles */
+    int invalid_framerate = frame_rate.num == 0 || frame_rate.den == 0;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
+        if (height  == dv_profiles[i].height  &&
+            pix_fmt == dv_profiles[i].pix_fmt &&
+            width   == dv_profiles[i].width)
+        {
+            if( invalid_framerate || av_div_q(dv_profiles[i].time_base, frame_rate).num == 1 )
+                return &dv_profiles[i];
+
+            if(!p)
+                p = &dv_profiles[i];
+        }
+#endif
+
+    return p;
+}
+
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dv_profile.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dv_profile.h
new file mode 100644
index 000000000..9380a66f0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dv_profile.h
@@ -0,0 +1,83 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DV_PROFILE_H
+#define AVCODEC_DV_PROFILE_H
+
+#include <stdint.h>
+
+#include "libavutil/pixfmt.h"
+#include "libavutil/rational.h"
+#include "avcodec.h"
+
+/* minimum number of bytes to read from a DV stream in order to
+ * determine the profile */
+#define DV_PROFILE_BYTES (6 * 80) /* 6 DIF blocks */
+
+
+/*
+ * AVDVProfile is used to express the differences between various
+ * DV flavors. For now it's primarily used for differentiating
+ * 525/60 and 625/50, but the plans are to use it for various
+ * DV specs as well (e.g. SMPTE314M vs. IEC 61834).
+ */
+typedef struct AVDVProfile {
+    int              dsf;                   /* value of the dsf in the DV header */
+    int              video_stype;           /* stype for VAUX source pack */
+    int              frame_size;            /* total size of one frame in bytes */
+    int              difseg_size;           /* number of DIF segments per DIF channel */
+    int              n_difchan;             /* number of DIF channels per frame */
+    AVRational       time_base;             /* 1/framerate */
+    int              ltc_divisor;           /* FPS from the LTS standpoint */
+    int              height;                /* picture height in pixels */
+    int              width;                 /* picture width in pixels */
+    AVRational       sar[2];                /* sample aspect ratios for 4:3 and 16:9 */
+    enum AVPixelFormat pix_fmt;             /* picture pixel format */
+    int              bpm;                   /* blocks per macroblock */
+    const uint8_t   *block_sizes;           /* AC block sizes, in bits */
+    int              audio_stride;          /* size of audio_shuffle table */
+    int              audio_min_samples[3];  /* min amount of audio samples */
+                                            /* for 48kHz, 44.1kHz and 32kHz */
+    int              audio_samples_dist[5]; /* how many samples are supposed to be */
+                                            /* in each frame in a 5 frames window */
+    const uint8_t  (*audio_shuffle)[9];     /* PCM shuffling table */
+} AVDVProfile;
+
+/**
+ * Get a DV profile for the provided compressed frame.
+ *
+ * @param sys the profile used for the previous frame, may be NULL
+ * @param frame the compressed data buffer
+ * @param buf_size size of the buffer in bytes
+ * @return the DV profile for the supplied data or NULL on failure
+ */
+const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
+                                       const uint8_t *frame, unsigned buf_size);
+
+/**
+ * Get a DV profile for the provided stream parameters.
+ */
+const AVDVProfile *av_dv_codec_profile(int width, int height, enum AVPixelFormat pix_fmt);
+
+/**
+ * Get a DV profile for the provided stream parameters.
+ * The frame rate is used as a best-effort parameter.
+ */
+const AVDVProfile *av_dv_codec_profile2(int width, int height, enum AVPixelFormat pix_fmt, AVRational frame_rate);
+
+#endif /* AVCODEC_DV_PROFILE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dv_profile_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dv_profile_internal.h
new file mode 100644
index 000000000..67d3a2b79
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dv_profile_internal.h
@@ -0,0 +1,35 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DV_PROFILE_INTERNAL_H
+#define AVCODEC_DV_PROFILE_INTERNAL_H
+
+#include "dv_profile.h"
+
+/**
+ *  Print all allowed DV profiles into logctx at specified logging level.
+ */
+void ff_dv_print_profiles(void *logctx, int loglevel);
+
+/**
+ * Get a DV profile for the provided compressed frame.
+ */
+const AVDVProfile* ff_dv_frame_profile(AVCodecContext* codec, const AVDVProfile *sys,
+                                       const uint8_t *frame, unsigned buf_size);
+
+#endif /* AVCODEC_DV_PROFILE_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dxva2.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dxva2.h
new file mode 100644
index 000000000..22c93992f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/dxva2.h
@@ -0,0 +1,93 @@
+/*
+ * DXVA2 HW acceleration
+ *
+ * copyright (c) 2009 Laurent Aimar
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DXVA2_H
+#define AVCODEC_DXVA2_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_dxva2
+ * Public libavcodec DXVA2 header.
+ */
+
+#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0602
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x0602
+#endif
+
+#include <stdint.h>
+#include <d3d9.h>
+#include <dxva2api.h>
+
+/**
+ * @defgroup lavc_codec_hwaccel_dxva2 DXVA2
+ * @ingroup lavc_codec_hwaccel
+ *
+ * @{
+ */
+
+#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards
+#define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO    2 ///< Work around for DXVA2 and old Intel GPUs with ClearVideo interface
+
+/**
+ * This structure is used to provides the necessary configurations and data
+ * to the DXVA2 FFmpeg HWAccel implementation.
+ *
+ * The application must make it available as AVCodecContext.hwaccel_context.
+ */
+struct dxva_context {
+    /**
+     * DXVA2 decoder object
+     */
+    IDirectXVideoDecoder *decoder;
+
+    /**
+     * DXVA2 configuration used to create the decoder
+     */
+    const DXVA2_ConfigPictureDecode *cfg;
+
+    /**
+     * The number of surface in the surface array
+     */
+    unsigned surface_count;
+
+    /**
+     * The array of Direct3D surfaces used to create the decoder
+     */
+    LPDIRECT3DSURFACE9 *surface;
+
+    /**
+     * A bit field configuring the workarounds needed for using the decoder
+     */
+    uint64_t workaround;
+
+    /**
+     * Private to the FFmpeg AVHWAccel implementation
+     */
+    unsigned report_id;
+};
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_DXVA2_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/encode.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/encode.c
new file mode 100644
index 000000000..d12c42526
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/encode.c
@@ -0,0 +1,447 @@
+/*
+ * generic encoding-related code
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
+#include "libavutil/frame.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/internal.h"
+#include "libavutil/samplefmt.h"
+
+#include "avcodec.h"
+#include "frame_thread_encoder.h"
+#include "internal.h"
+
+int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
+{
+    if (avpkt->size < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size);
+        return AVERROR(EINVAL);
+    }
+    if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
+        av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
+               size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
+        return AVERROR(EINVAL);
+    }
+
+    if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned
+        av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
+        if (!avpkt->data || avpkt->size < size) {
+            av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
+            avpkt->data = avctx->internal->byte_buffer;
+            avpkt->size = avctx->internal->byte_buffer_size;
+        }
+    }
+
+    if (avpkt->data) {
+        AVBufferRef *buf = avpkt->buf;
+
+        if (avpkt->size < size) {
+            av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size);
+            return AVERROR(EINVAL);
+        }
+
+        av_init_packet(avpkt);
+        avpkt->buf      = buf;
+        avpkt->size     = size;
+        return 0;
+    } else {
+        int ret = av_new_packet(avpkt, size);
+        if (ret < 0)
+            av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
+        return ret;
+    }
+}
+
+int ff_alloc_packet(AVPacket *avpkt, int size)
+{
+    return ff_alloc_packet2(NULL, avpkt, size, 0);
+}
+
+/**
+ * Pad last frame with silence.
+ */
+static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
+{
+    AVFrame *frame = NULL;
+    int ret;
+
+    if (!(frame = av_frame_alloc()))
+        return AVERROR(ENOMEM);
+
+    frame->format         = src->format;
+    frame->channel_layout = src->channel_layout;
+    frame->channels       = src->channels;
+    frame->nb_samples     = s->frame_size;
+    ret = av_frame_get_buffer(frame, 32);
+    if (ret < 0)
+        goto fail;
+
+    ret = av_frame_copy_props(frame, src);
+    if (ret < 0)
+        goto fail;
+
+    if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
+                               src->nb_samples, s->channels, s->sample_fmt)) < 0)
+        goto fail;
+    if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
+                                      frame->nb_samples - src->nb_samples,
+                                      s->channels, s->sample_fmt)) < 0)
+        goto fail;
+
+    *dst = frame;
+
+    return 0;
+
+fail:
+    av_frame_free(&frame);
+    return ret;
+}
+
+int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
+                                              AVPacket *avpkt,
+                                              const AVFrame *frame,
+                                              int *got_packet_ptr)
+{
+    AVFrame *extended_frame = NULL;
+    AVFrame *padded_frame = NULL;
+    int ret;
+    AVPacket user_pkt = *avpkt;
+    int needs_realloc = !user_pkt.data;
+
+    *got_packet_ptr = 0;
+
+    if (!avctx->codec->encode2) {
+        av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n");
+        return AVERROR(ENOSYS);
+    }
+
+    if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
+        av_packet_unref(avpkt);
+        return 0;
+    }
+
+    /* ensure that extended_data is properly set */
+    if (frame && !frame->extended_data) {
+        if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
+            avctx->channels > AV_NUM_DATA_POINTERS) {
+            av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
+                                        "with more than %d channels, but extended_data is not set.\n",
+                   AV_NUM_DATA_POINTERS);
+            return AVERROR(EINVAL);
+        }
+        av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
+
+        extended_frame = av_frame_alloc();
+        if (!extended_frame)
+            return AVERROR(ENOMEM);
+
+        memcpy(extended_frame, frame, sizeof(AVFrame));
+        extended_frame->extended_data = extended_frame->data;
+        frame = extended_frame;
+    }
+
+    /* extract audio service type metadata */
+    if (frame) {
+        AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
+        if (sd && sd->size >= sizeof(enum AVAudioServiceType))
+            avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
+    }
+
+    /* check for valid frame size */
+    if (frame) {
+        if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) {
+            if (frame->nb_samples > avctx->frame_size) {
+                av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
+                ret = AVERROR(EINVAL);
+                goto end;
+            }
+        } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
+            if (frame->nb_samples < avctx->frame_size &&
+                !avctx->internal->last_audio_frame) {
+                ret = pad_last_frame(avctx, &padded_frame, frame);
+                if (ret < 0)
+                    goto end;
+
+                frame = padded_frame;
+                avctx->internal->last_audio_frame = 1;
+            }
+
+            if (frame->nb_samples != avctx->frame_size) {
+                av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
+                ret = AVERROR(EINVAL);
+                goto end;
+            }
+        }
+    }
+
+    av_assert0(avctx->codec->encode2);
+
+    ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
+    if (!ret) {
+        if (*got_packet_ptr) {
+            if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) {
+                if (avpkt->pts == AV_NOPTS_VALUE)
+                    avpkt->pts = frame->pts;
+                if (!avpkt->duration)
+                    avpkt->duration = ff_samples_to_time_base(avctx,
+                                                              frame->nb_samples);
+            }
+            avpkt->dts = avpkt->pts;
+        } else {
+            avpkt->size = 0;
+        }
+    }
+    if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
+        needs_realloc = 0;
+        if (user_pkt.data) {
+            if (user_pkt.size >= avpkt->size) {
+                memcpy(user_pkt.data, avpkt->data, avpkt->size);
+            } else {
+                av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
+                avpkt->size = user_pkt.size;
+                ret = -1;
+            }
+            avpkt->buf      = user_pkt.buf;
+            avpkt->data     = user_pkt.data;
+        } else if (!avpkt->buf) {
+            ret = av_packet_make_refcounted(avpkt);
+            if (ret < 0)
+                goto end;
+        }
+    }
+
+    if (!ret) {
+        if (needs_realloc && avpkt->data) {
+            ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
+            if (ret >= 0)
+                avpkt->data = avpkt->buf->data;
+        }
+        if (frame)
+            avctx->frame_number++;
+    }
+
+    if (ret < 0 || !*got_packet_ptr) {
+        av_packet_unref(avpkt);
+        goto end;
+    }
+
+    /* NOTE: if we add any audio encoders which output non-keyframe packets,
+     *       this needs to be moved to the encoders, but for now we can do it
+     *       here to simplify things */
+    avpkt->flags |= AV_PKT_FLAG_KEY;
+
+end:
+    av_frame_free(&padded_frame);
+    av_free(extended_frame);
+
+    return ret;
+}
+
+int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
+                                              AVPacket *avpkt,
+                                              const AVFrame *frame,
+                                              int *got_packet_ptr)
+{
+    int ret;
+    AVPacket user_pkt = *avpkt;
+    int needs_realloc = !user_pkt.data;
+
+    *got_packet_ptr = 0;
+
+    if (!avctx->codec->encode2) {
+        av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n");
+        return AVERROR(ENOSYS);
+    }
+
+    if(CONFIG_FRAME_THREAD_ENCODER &&
+       avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
+        return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
+
+    if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out)
+        avctx->stats_out[0] = '\0';
+
+    if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) {
+        av_packet_unref(avpkt);
+        return 0;
+    }
+
+    if (av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx))
+        return AVERROR(EINVAL);
+
+    if (frame && frame->format == AV_PIX_FMT_NONE)
+        av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
+    if (frame && (frame->width == 0 || frame->height == 0))
+        av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
+
+    av_assert0(avctx->codec->encode2);
+
+    ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
+    av_assert0(ret <= 0);
+
+    emms_c();
+
+    if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
+        needs_realloc = 0;
+        if (user_pkt.data) {
+            if (user_pkt.size >= avpkt->size) {
+                memcpy(user_pkt.data, avpkt->data, avpkt->size);
+            } else {
+                av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
+                avpkt->size = user_pkt.size;
+                ret = -1;
+            }
+            avpkt->buf      = user_pkt.buf;
+            avpkt->data     = user_pkt.data;
+        } else if (!avpkt->buf) {
+            ret = av_packet_make_refcounted(avpkt);
+            if (ret < 0)
+                return ret;
+        }
+    }
+
+    if (!ret) {
+        if (!*got_packet_ptr)
+            avpkt->size = 0;
+        else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
+            avpkt->pts = avpkt->dts = frame->pts;
+
+        if (needs_realloc && avpkt->data) {
+            ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
+            if (ret >= 0)
+                avpkt->data = avpkt->buf->data;
+        }
+
+        if (frame)
+            avctx->frame_number++;
+    }
+
+    if (ret < 0 || !*got_packet_ptr)
+        av_packet_unref(avpkt);
+
+    return ret;
+}
+
+int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
+                            const AVSubtitle *sub)
+{
+    int ret;
+    if (sub->start_display_time) {
+        av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
+        return -1;
+    }
+
+    ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
+    avctx->frame_number++;
+    return ret;
+}
+
+static int do_encode(AVCodecContext *avctx, const AVFrame *frame, int *got_packet)
+{
+    int ret;
+    *got_packet = 0;
+
+    av_packet_unref(avctx->internal->buffer_pkt);
+    avctx->internal->buffer_pkt_valid = 0;
+
+    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+        ret = avcodec_encode_video2(avctx, avctx->internal->buffer_pkt,
+                                    frame, got_packet);
+    } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
+        ret = avcodec_encode_audio2(avctx, avctx->internal->buffer_pkt,
+                                    frame, got_packet);
+    } else {
+        ret = AVERROR(EINVAL);
+    }
+
+    if (ret >= 0 && *got_packet) {
+        // Encoders must always return ref-counted buffers.
+        // Side-data only packets have no data and can be not ref-counted.
+        av_assert0(!avctx->internal->buffer_pkt->data || avctx->internal->buffer_pkt->buf);
+        avctx->internal->buffer_pkt_valid = 1;
+        ret = 0;
+    } else {
+        av_packet_unref(avctx->internal->buffer_pkt);
+    }
+
+    return ret;
+}
+
+int attribute_align_arg avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame)
+{
+    if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
+        return AVERROR(EINVAL);
+
+    if (avctx->internal->draining)
+        return AVERROR_EOF;
+
+    if (!frame) {
+        avctx->internal->draining = 1;
+
+        if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
+            return 0;
+    }
+
+    if (avctx->codec->send_frame)
+        return avctx->codec->send_frame(avctx, frame);
+
+    // Emulation via old API. Do it here instead of avcodec_receive_packet, because:
+    // 1. if the AVFrame is not refcounted, the copying will be much more
+    //    expensive than copying the packet data
+    // 2. assume few users use non-refcounted AVPackets, so usually no copy is
+    //    needed
+
+    if (avctx->internal->buffer_pkt_valid)
+        return AVERROR(EAGAIN);
+
+    return do_encode(avctx, frame, &(int){0});
+}
+
+int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
+{
+    av_packet_unref(avpkt);
+
+    if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
+        return AVERROR(EINVAL);
+
+    if (avctx->codec->receive_packet) {
+        if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
+            return AVERROR_EOF;
+        return avctx->codec->receive_packet(avctx, avpkt);
+    }
+
+    // Emulation via old API.
+
+    if (!avctx->internal->buffer_pkt_valid) {
+        int got_packet;
+        int ret;
+        if (!avctx->internal->draining)
+            return AVERROR(EAGAIN);
+        ret = do_encode(avctx, NULL, &got_packet);
+        if (ret < 0)
+            return ret;
+        if (ret >= 0 && !got_packet)
+            return AVERROR_EOF;
+    }
+
+    av_packet_move_ref(avpkt, avctx->internal->buffer_pkt);
+    avctx->internal->buffer_pkt_valid = 0;
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/error_resilience.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/error_resilience.c
new file mode 100644
index 000000000..ca2287198
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/error_resilience.c
@@ -0,0 +1,1366 @@
+/*
+ * Error resilience / concealment
+ *
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Error resilience / concealment.
+ */
+
+#include <limits.h>
+
+#include "libavutil/internal.h"
+#include "avcodec.h"
+#include "error_resilience.h"
+#include "me_cmp.h"
+#include "mpegutils.h"
+#include "mpegvideo.h"
+#include "rectangle.h"
+#include "thread.h"
+#include "version.h"
+
+/**
+ * @param stride the number of MVs to get to the next row
+ * @param mv_step the number of MVs per row or column in a macroblock
+ */
+static void set_mv_strides(ERContext *s, ptrdiff_t *mv_step, ptrdiff_t *stride)
+{
+    if (s->avctx->codec_id == AV_CODEC_ID_H264) {
+        av_assert0(s->quarter_sample);
+        *mv_step = 4;
+        *stride  = s->mb_width * 4;
+    } else {
+        *mv_step = 2;
+        *stride  = s->b8_stride;
+    }
+}
+
+/**
+ * Replace the current MB with a flat dc-only version.
+ */
+static void put_dc(ERContext *s, uint8_t *dest_y, uint8_t *dest_cb,
+                   uint8_t *dest_cr, int mb_x, int mb_y)
+{
+    int *linesize = s->cur_pic.f->linesize;
+    int dc, dcu, dcv, y, i;
+    for (i = 0; i < 4; i++) {
+        dc = s->dc_val[0][mb_x * 2 + (i &  1) + (mb_y * 2 + (i >> 1)) * s->b8_stride];
+        if (dc < 0)
+            dc = 0;
+        else if (dc > 2040)
+            dc = 2040;
+        for (y = 0; y < 8; y++) {
+            int x;
+            for (x = 0; x < 8; x++)
+                dest_y[x + (i &  1) * 8 + (y + (i >> 1) * 8) * linesize[0]] = dc / 8;
+        }
+    }
+    dcu = s->dc_val[1][mb_x + mb_y * s->mb_stride];
+    dcv = s->dc_val[2][mb_x + mb_y * s->mb_stride];
+    if (dcu < 0)
+        dcu = 0;
+    else if (dcu > 2040)
+        dcu = 2040;
+    if (dcv < 0)
+        dcv = 0;
+    else if (dcv > 2040)
+        dcv = 2040;
+
+    if (dest_cr)
+    for (y = 0; y < 8; y++) {
+        int x;
+        for (x = 0; x < 8; x++) {
+            dest_cb[x + y * linesize[1]] = dcu / 8;
+            dest_cr[x + y * linesize[2]] = dcv / 8;
+        }
+    }
+}
+
+static void filter181(int16_t *data, int width, int height, ptrdiff_t stride)
+{
+    int x, y;
+
+    /* horizontal filter */
+    for (y = 1; y < height - 1; y++) {
+        int prev_dc = data[0 + y * stride];
+
+        for (x = 1; x < width - 1; x++) {
+            int dc;
+            dc = -prev_dc +
+                 data[x     + y * stride] * 8 -
+                 data[x + 1 + y * stride];
+            dc = (av_clip(dc, INT_MIN/10923, INT_MAX/10923 - 32768) * 10923 + 32768) >> 16;
+            prev_dc = data[x + y * stride];
+            data[x + y * stride] = dc;
+        }
+    }
+
+    /* vertical filter */
+    for (x = 1; x < width - 1; x++) {
+        int prev_dc = data[x];
+
+        for (y = 1; y < height - 1; y++) {
+            int dc;
+
+            dc = -prev_dc +
+                 data[x +  y      * stride] * 8 -
+                 data[x + (y + 1) * stride];
+            dc = (av_clip(dc, INT_MIN/10923, INT_MAX/10923 - 32768) * 10923 + 32768) >> 16;
+            prev_dc = data[x + y * stride];
+            data[x + y * stride] = dc;
+        }
+    }
+}
+
+/**
+ * guess the dc of blocks which do not have an undamaged dc
+ * @param w     width in 8 pixel blocks
+ * @param h     height in 8 pixel blocks
+ */
+static void guess_dc(ERContext *s, int16_t *dc, int w,
+                     int h, ptrdiff_t stride, int is_luma)
+{
+    int b_x, b_y;
+    int16_t  (*col )[4] = av_malloc_array(stride, h*sizeof( int16_t)*4);
+    uint32_t (*dist)[4] = av_malloc_array(stride, h*sizeof(uint32_t)*4);
+
+    if(!col || !dist) {
+        av_log(s->avctx, AV_LOG_ERROR, "guess_dc() is out of memory\n");
+        goto fail;
+    }
+
+    for(b_y=0; b_y<h; b_y++){
+        int color= 1024;
+        int distance= -1;
+        for(b_x=0; b_x<w; b_x++){
+            int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
+            int error_j= s->error_status_table[mb_index_j];
+            int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
+            if(intra_j==0 || !(error_j&ER_DC_ERROR)){
+                color= dc[b_x + b_y*stride];
+                distance= b_x;
+            }
+            col [b_x + b_y*stride][1]= color;
+            dist[b_x + b_y*stride][1]= distance >= 0 ? b_x-distance : 9999;
+        }
+        color= 1024;
+        distance= -1;
+        for(b_x=w-1; b_x>=0; b_x--){
+            int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
+            int error_j= s->error_status_table[mb_index_j];
+            int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
+            if(intra_j==0 || !(error_j&ER_DC_ERROR)){
+                color= dc[b_x + b_y*stride];
+                distance= b_x;
+            }
+            col [b_x + b_y*stride][0]= color;
+            dist[b_x + b_y*stride][0]= distance >= 0 ? distance-b_x : 9999;
+        }
+    }
+    for(b_x=0; b_x<w; b_x++){
+        int color= 1024;
+        int distance= -1;
+        for(b_y=0; b_y<h; b_y++){
+            int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
+            int error_j= s->error_status_table[mb_index_j];
+            int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
+            if(intra_j==0 || !(error_j&ER_DC_ERROR)){
+                color= dc[b_x + b_y*stride];
+                distance= b_y;
+            }
+            col [b_x + b_y*stride][3]= color;
+            dist[b_x + b_y*stride][3]= distance >= 0 ? b_y-distance : 9999;
+        }
+        color= 1024;
+        distance= -1;
+        for(b_y=h-1; b_y>=0; b_y--){
+            int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
+            int error_j= s->error_status_table[mb_index_j];
+            int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
+            if(intra_j==0 || !(error_j&ER_DC_ERROR)){
+                color= dc[b_x + b_y*stride];
+                distance= b_y;
+            }
+            col [b_x + b_y*stride][2]= color;
+            dist[b_x + b_y*stride][2]= distance >= 0 ? distance-b_y : 9999;
+        }
+    }
+
+    for (b_y = 0; b_y < h; b_y++) {
+        for (b_x = 0; b_x < w; b_x++) {
+            int mb_index, error, j;
+            int64_t guess, weight_sum;
+            mb_index = (b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride;
+            error    = s->error_status_table[mb_index];
+
+            if (IS_INTER(s->cur_pic.mb_type[mb_index]))
+                continue; // inter
+            if (!(error & ER_DC_ERROR))
+                continue; // dc-ok
+
+            weight_sum = 0;
+            guess      = 0;
+            for (j = 0; j < 4; j++) {
+                int64_t weight  = 256 * 256 * 256 * 16 / FFMAX(dist[b_x + b_y*stride][j], 1);
+                guess          += weight*(int64_t)col[b_x + b_y*stride][j];
+                weight_sum     += weight;
+            }
+            guess = (guess + weight_sum / 2) / weight_sum;
+            dc[b_x + b_y * stride] = guess;
+        }
+    }
+
+fail:
+    av_freep(&col);
+    av_freep(&dist);
+}
+
+/**
+ * simple horizontal deblocking filter used for error resilience
+ * @param w     width in 8 pixel blocks
+ * @param h     height in 8 pixel blocks
+ */
+static void h_block_filter(ERContext *s, uint8_t *dst, int w,
+                           int h, ptrdiff_t stride, int is_luma)
+{
+    int b_x, b_y;
+    ptrdiff_t mvx_stride, mvy_stride;
+    const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
+    set_mv_strides(s, &mvx_stride, &mvy_stride);
+    mvx_stride >>= is_luma;
+    mvy_stride *= mvx_stride;
+
+    for (b_y = 0; b_y < h; b_y++) {
+        for (b_x = 0; b_x < w - 1; b_x++) {
+            int y;
+            int left_status  = s->error_status_table[( b_x      >> is_luma) + (b_y >> is_luma) * s->mb_stride];
+            int right_status = s->error_status_table[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride];
+            int left_intra   = IS_INTRA(s->cur_pic.mb_type[( b_x      >> is_luma) + (b_y >> is_luma) * s->mb_stride]);
+            int right_intra  = IS_INTRA(s->cur_pic.mb_type[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]);
+            int left_damage  = left_status & ER_MB_ERROR;
+            int right_damage = right_status & ER_MB_ERROR;
+            int offset       = b_x * 8 + b_y * stride * 8;
+            int16_t *left_mv  = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride *  b_x];
+            int16_t *right_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * (b_x + 1)];
+            if (!(left_damage || right_damage))
+                continue; // both undamaged
+            if ((!left_intra) && (!right_intra) &&
+                FFABS(left_mv[0] - right_mv[0]) +
+                FFABS(left_mv[1] + right_mv[1]) < 2)
+                continue;
+
+            for (y = 0; y < 8; y++) {
+                int a, b, c, d;
+
+                a = dst[offset + 7 + y * stride] - dst[offset + 6 + y * stride];
+                b = dst[offset + 8 + y * stride] - dst[offset + 7 + y * stride];
+                c = dst[offset + 9 + y * stride] - dst[offset + 8 + y * stride];
+
+                d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1);
+                d = FFMAX(d, 0);
+                if (b < 0)
+                    d = -d;
+
+                if (d == 0)
+                    continue;
+
+                if (!(left_damage && right_damage))
+                    d = d * 16 / 9;
+
+                if (left_damage) {
+                    dst[offset + 7 + y * stride] = cm[dst[offset + 7 + y * stride] + ((d * 7) >> 4)];
+                    dst[offset + 6 + y * stride] = cm[dst[offset + 6 + y * stride] + ((d * 5) >> 4)];
+                    dst[offset + 5 + y * stride] = cm[dst[offset + 5 + y * stride] + ((d * 3) >> 4)];
+                    dst[offset + 4 + y * stride] = cm[dst[offset + 4 + y * stride] + ((d * 1) >> 4)];
+                }
+                if (right_damage) {
+                    dst[offset + 8 + y * stride] = cm[dst[offset +  8 + y * stride] - ((d * 7) >> 4)];
+                    dst[offset + 9 + y * stride] = cm[dst[offset +  9 + y * stride] - ((d * 5) >> 4)];
+                    dst[offset + 10+ y * stride] = cm[dst[offset + 10 + y * stride] - ((d * 3) >> 4)];
+                    dst[offset + 11+ y * stride] = cm[dst[offset + 11 + y * stride] - ((d * 1) >> 4)];
+                }
+            }
+        }
+    }
+}
+
+/**
+ * simple vertical deblocking filter used for error resilience
+ * @param w     width in 8 pixel blocks
+ * @param h     height in 8 pixel blocks
+ */
+static void v_block_filter(ERContext *s, uint8_t *dst, int w, int h,
+                           ptrdiff_t stride, int is_luma)
+{
+    int b_x, b_y;
+    ptrdiff_t mvx_stride, mvy_stride;
+    const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
+    set_mv_strides(s, &mvx_stride, &mvy_stride);
+    mvx_stride >>= is_luma;
+    mvy_stride *= mvx_stride;
+
+    for (b_y = 0; b_y < h - 1; b_y++) {
+        for (b_x = 0; b_x < w; b_x++) {
+            int x;
+            int top_status    = s->error_status_table[(b_x >> is_luma) +  (b_y      >> is_luma) * s->mb_stride];
+            int bottom_status = s->error_status_table[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride];
+            int top_intra     = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ( b_y      >> is_luma) * s->mb_stride]);
+            int bottom_intra  = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]);
+            int top_damage    = top_status & ER_MB_ERROR;
+            int bottom_damage = bottom_status & ER_MB_ERROR;
+            int offset        = b_x * 8 + b_y * stride * 8;
+
+            int16_t *top_mv    = s->cur_pic.motion_val[0][mvy_stride *  b_y      + mvx_stride * b_x];
+            int16_t *bottom_mv = s->cur_pic.motion_val[0][mvy_stride * (b_y + 1) + mvx_stride * b_x];
+
+            if (!(top_damage || bottom_damage))
+                continue; // both undamaged
+
+            if ((!top_intra) && (!bottom_intra) &&
+                FFABS(top_mv[0] - bottom_mv[0]) +
+                FFABS(top_mv[1] + bottom_mv[1]) < 2)
+                continue;
+
+            for (x = 0; x < 8; x++) {
+                int a, b, c, d;
+
+                a = dst[offset + x + 7 * stride] - dst[offset + x + 6 * stride];
+                b = dst[offset + x + 8 * stride] - dst[offset + x + 7 * stride];
+                c = dst[offset + x + 9 * stride] - dst[offset + x + 8 * stride];
+
+                d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1);
+                d = FFMAX(d, 0);
+                if (b < 0)
+                    d = -d;
+
+                if (d == 0)
+                    continue;
+
+                if (!(top_damage && bottom_damage))
+                    d = d * 16 / 9;
+
+                if (top_damage) {
+                    dst[offset + x +  7 * stride] = cm[dst[offset + x +  7 * stride] + ((d * 7) >> 4)];
+                    dst[offset + x +  6 * stride] = cm[dst[offset + x +  6 * stride] + ((d * 5) >> 4)];
+                    dst[offset + x +  5 * stride] = cm[dst[offset + x +  5 * stride] + ((d * 3) >> 4)];
+                    dst[offset + x +  4 * stride] = cm[dst[offset + x +  4 * stride] + ((d * 1) >> 4)];
+                }
+                if (bottom_damage) {
+                    dst[offset + x +  8 * stride] = cm[dst[offset + x +  8 * stride] - ((d * 7) >> 4)];
+                    dst[offset + x +  9 * stride] = cm[dst[offset + x +  9 * stride] - ((d * 5) >> 4)];
+                    dst[offset + x + 10 * stride] = cm[dst[offset + x + 10 * stride] - ((d * 3) >> 4)];
+                    dst[offset + x + 11 * stride] = cm[dst[offset + x + 11 * stride] - ((d * 1) >> 4)];
+                }
+            }
+        }
+    }
+}
+
+#define MV_FROZEN    8
+#define MV_CHANGED   4
+#define MV_UNCHANGED 2
+#define MV_LISTED    1
+static av_always_inline void add_blocklist(int (*blocklist)[2], int *blocklist_length, uint8_t *fixed, int mb_x, int mb_y, int mb_xy)
+{
+    if (fixed[mb_xy])
+        return;
+    fixed[mb_xy] = MV_LISTED;
+    blocklist[ *blocklist_length   ][0] = mb_x;
+    blocklist[(*blocklist_length)++][1] = mb_y;
+}
+
+static void guess_mv(ERContext *s)
+{
+    int (*blocklist)[2], (*next_blocklist)[2];
+    uint8_t *fixed;
+    const ptrdiff_t mb_stride = s->mb_stride;
+    const int mb_width  = s->mb_width;
+    int mb_height = s->mb_height;
+    int i, depth, num_avail;
+    int mb_x, mb_y;
+    ptrdiff_t mot_step, mot_stride;
+    int blocklist_length, next_blocklist_length;
+
+    if (s->last_pic.f && s->last_pic.f->data[0])
+        mb_height = FFMIN(mb_height, (s->last_pic.f->height+15)>>4);
+    if (s->next_pic.f && s->next_pic.f->data[0])
+        mb_height = FFMIN(mb_height, (s->next_pic.f->height+15)>>4);
+
+    blocklist      = (int (*)[2])s->er_temp_buffer;
+    next_blocklist = blocklist + s->mb_stride * s->mb_height;
+    fixed          = (uint8_t *)(next_blocklist + s->mb_stride * s->mb_height);
+
+    set_mv_strides(s, &mot_step, &mot_stride);
+
+    num_avail = 0;
+    if (s->last_pic.motion_val[0])
+        ff_thread_await_progress(s->last_pic.tf, mb_height-1, 0);
+    for (i = 0; i < mb_width * mb_height; i++) {
+        const int mb_xy = s->mb_index2xy[i];
+        int f = 0;
+        int error = s->error_status_table[mb_xy];
+
+        if (IS_INTRA(s->cur_pic.mb_type[mb_xy]))
+            f = MV_FROZEN; // intra // FIXME check
+        if (!(error & ER_MV_ERROR))
+            f = MV_FROZEN; // inter with undamaged MV
+
+        fixed[mb_xy] = f;
+        if (f == MV_FROZEN)
+            num_avail++;
+        else if(s->last_pic.f->data[0] && s->last_pic.motion_val[0]){
+            const int mb_y= mb_xy / s->mb_stride;
+            const int mb_x= mb_xy % s->mb_stride;
+            const int mot_index= (mb_x + mb_y*mot_stride) * mot_step;
+            s->cur_pic.motion_val[0][mot_index][0]= s->last_pic.motion_val[0][mot_index][0];
+            s->cur_pic.motion_val[0][mot_index][1]= s->last_pic.motion_val[0][mot_index][1];
+            s->cur_pic.ref_index[0][4*mb_xy]      = s->last_pic.ref_index[0][4*mb_xy];
+        }
+    }
+
+    if ((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) ||
+        num_avail <= FFMAX(mb_width, mb_height) / 2) {
+        for (mb_y = 0; mb_y < mb_height; mb_y++) {
+            for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
+                const int mb_xy = mb_x + mb_y * s->mb_stride;
+                int mv_dir = (s->last_pic.f && s->last_pic.f->data[0]) ? MV_DIR_FORWARD : MV_DIR_BACKWARD;
+
+                if (IS_INTRA(s->cur_pic.mb_type[mb_xy]))
+                    continue;
+                if (!(s->error_status_table[mb_xy] & ER_MV_ERROR))
+                    continue;
+
+                s->mv[0][0][0] = 0;
+                s->mv[0][0][1] = 0;
+                s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv,
+                             mb_x, mb_y, 0, 0);
+            }
+        }
+        return;
+    }
+
+    blocklist_length = 0;
+    for (mb_y = 0; mb_y < mb_height; mb_y++) {
+        for (mb_x = 0; mb_x < mb_width; mb_x++) {
+            const int mb_xy = mb_x + mb_y * mb_stride;
+            if (fixed[mb_xy] == MV_FROZEN) {
+                if (mb_x)               add_blocklist(blocklist, &blocklist_length, fixed, mb_x - 1, mb_y, mb_xy - 1);
+                if (mb_y)               add_blocklist(blocklist, &blocklist_length, fixed, mb_x, mb_y - 1, mb_xy - mb_stride);
+                if (mb_x+1 < mb_width)  add_blocklist(blocklist, &blocklist_length, fixed, mb_x + 1, mb_y, mb_xy + 1);
+                if (mb_y+1 < mb_height) add_blocklist(blocklist, &blocklist_length, fixed, mb_x, mb_y + 1, mb_xy + mb_stride);
+            }
+        }
+    }
+
+    for (depth = 0; ; depth++) {
+        int changed, pass, none_left;
+        int blocklist_index;
+
+        none_left = 1;
+        changed   = 1;
+        for (pass = 0; (changed || pass < 2) && pass < 10; pass++) {
+            int score_sum = 0;
+
+            changed = 0;
+            for (blocklist_index = 0; blocklist_index < blocklist_length; blocklist_index++) {
+                const int mb_x = blocklist[blocklist_index][0];
+                const int mb_y = blocklist[blocklist_index][1];
+                const int mb_xy = mb_x + mb_y * mb_stride;
+                int mv_predictor[8][2];
+                int ref[8];
+                int pred_count;
+                int j;
+                int best_score;
+                int best_pred;
+                int mot_index;
+                int prev_x, prev_y, prev_ref;
+
+                if ((mb_x ^ mb_y ^ pass) & 1)
+                    continue;
+                av_assert2(fixed[mb_xy] != MV_FROZEN);
+
+
+                av_assert1(!IS_INTRA(s->cur_pic.mb_type[mb_xy]));
+                av_assert1(s->last_pic.f && s->last_pic.f->data[0]);
+
+                j = 0;
+                if (mb_x > 0)
+                    j |= fixed[mb_xy - 1];
+                if (mb_x + 1 < mb_width)
+                    j |= fixed[mb_xy + 1];
+                if (mb_y > 0)
+                    j |= fixed[mb_xy - mb_stride];
+                if (mb_y + 1 < mb_height)
+                    j |= fixed[mb_xy + mb_stride];
+
+                av_assert2(j & MV_FROZEN);
+
+                if (!(j & MV_CHANGED) && pass > 1)
+                    continue;
+
+                none_left = 0;
+                pred_count = 0;
+                mot_index  = (mb_x + mb_y * mot_stride) * mot_step;
+
+                if (mb_x > 0 && fixed[mb_xy - 1] > 1) {
+                    mv_predictor[pred_count][0] =
+                        s->cur_pic.motion_val[0][mot_index - mot_step][0];
+                    mv_predictor[pred_count][1] =
+                        s->cur_pic.motion_val[0][mot_index - mot_step][1];
+                    ref[pred_count] =
+                        s->cur_pic.ref_index[0][4 * (mb_xy - 1)];
+                    pred_count++;
+                }
+                if (mb_x + 1 < mb_width && fixed[mb_xy + 1] > 1) {
+                    mv_predictor[pred_count][0] =
+                        s->cur_pic.motion_val[0][mot_index + mot_step][0];
+                    mv_predictor[pred_count][1] =
+                        s->cur_pic.motion_val[0][mot_index + mot_step][1];
+                    ref[pred_count] =
+                        s->cur_pic.ref_index[0][4 * (mb_xy + 1)];
+                    pred_count++;
+                }
+                if (mb_y > 0 && fixed[mb_xy - mb_stride] > 1) {
+                    mv_predictor[pred_count][0] =
+                        s->cur_pic.motion_val[0][mot_index - mot_stride * mot_step][0];
+                    mv_predictor[pred_count][1] =
+                        s->cur_pic.motion_val[0][mot_index - mot_stride * mot_step][1];
+                    ref[pred_count] =
+                        s->cur_pic.ref_index[0][4 * (mb_xy - s->mb_stride)];
+                    pred_count++;
+                }
+                if (mb_y + 1<mb_height && fixed[mb_xy + mb_stride] > 1) {
+                    mv_predictor[pred_count][0] =
+                        s->cur_pic.motion_val[0][mot_index + mot_stride * mot_step][0];
+                    mv_predictor[pred_count][1] =
+                        s->cur_pic.motion_val[0][mot_index + mot_stride * mot_step][1];
+                    ref[pred_count] =
+                        s->cur_pic.ref_index[0][4 * (mb_xy + s->mb_stride)];
+                    pred_count++;
+                }
+                if (pred_count == 0)
+                    continue;
+
+                if (pred_count > 1) {
+                    int sum_x = 0, sum_y = 0, sum_r = 0;
+                    int max_x, max_y, min_x, min_y, max_r, min_r;
+
+                    for (j = 0; j < pred_count; j++) {
+                        sum_x += mv_predictor[j][0];
+                        sum_y += mv_predictor[j][1];
+                        sum_r += ref[j];
+                        if (j && ref[j] != ref[j - 1])
+                            goto skip_mean_and_median;
+                    }
+
+                    /* mean */
+                    mv_predictor[pred_count][0] = sum_x / j;
+                    mv_predictor[pred_count][1] = sum_y / j;
+                             ref[pred_count]    = sum_r / j;
+
+                    /* median */
+                    if (pred_count >= 3) {
+                        min_y = min_x = min_r =  99999;
+                        max_y = max_x = max_r = -99999;
+                    } else {
+                        min_x = min_y = max_x = max_y = min_r = max_r = 0;
+                    }
+                    for (j = 0; j < pred_count; j++) {
+                        max_x = FFMAX(max_x, mv_predictor[j][0]);
+                        max_y = FFMAX(max_y, mv_predictor[j][1]);
+                        max_r = FFMAX(max_r, ref[j]);
+                        min_x = FFMIN(min_x, mv_predictor[j][0]);
+                        min_y = FFMIN(min_y, mv_predictor[j][1]);
+                        min_r = FFMIN(min_r, ref[j]);
+                    }
+                    mv_predictor[pred_count + 1][0] = sum_x - max_x - min_x;
+                    mv_predictor[pred_count + 1][1] = sum_y - max_y - min_y;
+                             ref[pred_count + 1]    = sum_r - max_r - min_r;
+
+                    if (pred_count == 4) {
+                        mv_predictor[pred_count + 1][0] /= 2;
+                        mv_predictor[pred_count + 1][1] /= 2;
+                                 ref[pred_count + 1]    /= 2;
+                    }
+                    pred_count += 2;
+                }
+
+skip_mean_and_median:
+                /* zero MV */
+                mv_predictor[pred_count][0] =
+                mv_predictor[pred_count][1] =
+                         ref[pred_count]    = 0;
+                pred_count++;
+
+                prev_x   = s->cur_pic.motion_val[0][mot_index][0];
+                prev_y   = s->cur_pic.motion_val[0][mot_index][1];
+                prev_ref = s->cur_pic.ref_index[0][4 * mb_xy];
+
+                /* last MV */
+                mv_predictor[pred_count][0] = prev_x;
+                mv_predictor[pred_count][1] = prev_y;
+                         ref[pred_count]    = prev_ref;
+                pred_count++;
+
+                best_pred = 0;
+                best_score = 256 * 256 * 256 * 64;
+                for (j = 0; j < pred_count; j++) {
+                    int *linesize = s->cur_pic.f->linesize;
+                    int score = 0;
+                    uint8_t *src = s->cur_pic.f->data[0] +
+                                   mb_x * 16 + mb_y * 16 * linesize[0];
+
+                    s->cur_pic.motion_val[0][mot_index][0] =
+                        s->mv[0][0][0] = mv_predictor[j][0];
+                    s->cur_pic.motion_val[0][mot_index][1] =
+                        s->mv[0][0][1] = mv_predictor[j][1];
+
+                    // predictor intra or otherwise not available
+                    if (ref[j] < 0)
+                        continue;
+
+                    s->decode_mb(s->opaque, ref[j], MV_DIR_FORWARD,
+                                 MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0);
+
+                    if (mb_x > 0 && fixed[mb_xy - 1] > 1) {
+                        int k;
+                        for (k = 0; k < 16; k++)
+                            score += FFABS(src[k * linesize[0] - 1] -
+                                           src[k * linesize[0]]);
+                    }
+                    if (mb_x + 1 < mb_width && fixed[mb_xy + 1] > 1) {
+                        int k;
+                        for (k = 0; k < 16; k++)
+                            score += FFABS(src[k * linesize[0] + 15] -
+                                           src[k * linesize[0] + 16]);
+                    }
+                    if (mb_y > 0 && fixed[mb_xy - mb_stride] > 1) {
+                        int k;
+                        for (k = 0; k < 16; k++)
+                            score += FFABS(src[k - linesize[0]] - src[k]);
+                    }
+                    if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride] > 1) {
+                        int k;
+                        for (k = 0; k < 16; k++)
+                            score += FFABS(src[k + linesize[0] * 15] -
+                                           src[k + linesize[0] * 16]);
+                    }
+
+                    if (score <= best_score) { // <= will favor the last MV
+                        best_score = score;
+                        best_pred  = j;
+                    }
+                }
+                score_sum += best_score;
+                s->mv[0][0][0] = mv_predictor[best_pred][0];
+                s->mv[0][0][1] = mv_predictor[best_pred][1];
+
+                for (i = 0; i < mot_step; i++)
+                    for (j = 0; j < mot_step; j++) {
+                        s->cur_pic.motion_val[0][mot_index + i + j * mot_stride][0] = s->mv[0][0][0];
+                        s->cur_pic.motion_val[0][mot_index + i + j * mot_stride][1] = s->mv[0][0][1];
+                    }
+
+                s->decode_mb(s->opaque, ref[best_pred], MV_DIR_FORWARD,
+                             MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0);
+
+
+                if (s->mv[0][0][0] != prev_x || s->mv[0][0][1] != prev_y) {
+                    fixed[mb_xy] = MV_CHANGED;
+                    changed++;
+                } else
+                    fixed[mb_xy] = MV_UNCHANGED;
+            }
+        }
+
+        if (none_left)
+            return;
+
+        next_blocklist_length = 0;
+
+        for (blocklist_index = 0; blocklist_index < blocklist_length; blocklist_index++) {
+            const int mb_x = blocklist[blocklist_index][0];
+            const int mb_y = blocklist[blocklist_index][1];
+            const int mb_xy = mb_x + mb_y * mb_stride;
+
+            if (fixed[mb_xy] & (MV_CHANGED|MV_UNCHANGED|MV_FROZEN)) {
+                fixed[mb_xy] = MV_FROZEN;
+                if (mb_x > 0)
+                    add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x - 1, mb_y, mb_xy - 1);
+                if (mb_y > 0)
+                    add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x, mb_y - 1, mb_xy - mb_stride);
+                if (mb_x + 1 < mb_width)
+                    add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x + 1, mb_y, mb_xy + 1);
+                if (mb_y + 1 < mb_height)
+                    add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x, mb_y + 1, mb_xy + mb_stride);
+            }
+        }
+        av_assert0(next_blocklist_length <= mb_height * mb_width);
+        FFSWAP(int , blocklist_length, next_blocklist_length);
+        FFSWAP(void*, blocklist, next_blocklist);
+    }
+}
+
+static int is_intra_more_likely(ERContext *s)
+{
+    int is_intra_likely, i, j, undamaged_count, skip_amount, mb_x, mb_y;
+
+    if (!s->last_pic.f || !s->last_pic.f->data[0])
+        return 1; // no previous frame available -> use spatial prediction
+
+    if (s->avctx->error_concealment & FF_EC_FAVOR_INTER)
+        return 0;
+
+    undamaged_count = 0;
+    for (i = 0; i < s->mb_num; i++) {
+        const int mb_xy = s->mb_index2xy[i];
+        const int error = s->error_status_table[mb_xy];
+        if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR)))
+            undamaged_count++;
+    }
+
+    if (undamaged_count < 5)
+        return 0; // almost all MBs damaged -> use temporal prediction
+
+    // prevent dsp.sad() check, that requires access to the image
+    if (CONFIG_XVMC    &&
+        s->avctx->hwaccel && s->avctx->hwaccel->decode_mb &&
+        s->cur_pic.f->pict_type == AV_PICTURE_TYPE_I)
+        return 1;
+
+    skip_amount     = FFMAX(undamaged_count / 50, 1); // check only up to 50 MBs
+    is_intra_likely = 0;
+
+    j = 0;
+    for (mb_y = 0; mb_y < s->mb_height - 1; mb_y++) {
+        for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
+            int error;
+            const int mb_xy = mb_x + mb_y * s->mb_stride;
+
+            error = s->error_status_table[mb_xy];
+            if ((error & ER_DC_ERROR) && (error & ER_MV_ERROR))
+                continue; // skip damaged
+
+            j++;
+            // skip a few to speed things up
+            if ((j % skip_amount) != 0)
+                continue;
+
+            if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_I) {
+                int *linesize = s->cur_pic.f->linesize;
+                uint8_t *mb_ptr      = s->cur_pic.f->data[0] +
+                                       mb_x * 16 + mb_y * 16 * linesize[0];
+                uint8_t *last_mb_ptr = s->last_pic.f->data[0] +
+                                       mb_x * 16 + mb_y * 16 * linesize[0];
+
+                if (s->avctx->codec_id == AV_CODEC_ID_H264) {
+                    // FIXME
+                } else {
+                    ff_thread_await_progress(s->last_pic.tf, mb_y, 0);
+                }
+                is_intra_likely += s->mecc.sad[0](NULL, last_mb_ptr, mb_ptr,
+                                                  linesize[0], 16);
+                // FIXME need await_progress() here
+                is_intra_likely -= s->mecc.sad[0](NULL, last_mb_ptr,
+                                                  last_mb_ptr + linesize[0] * 16,
+                                                  linesize[0], 16);
+            } else {
+                if (IS_INTRA(s->cur_pic.mb_type[mb_xy]))
+                   is_intra_likely++;
+                else
+                   is_intra_likely--;
+            }
+        }
+    }
+//      av_log(NULL, AV_LOG_ERROR, "is_intra_likely: %d type:%d\n", is_intra_likely, s->pict_type);
+    return is_intra_likely > 0;
+}
+
+void ff_er_frame_start(ERContext *s)
+{
+    if (!s->avctx->error_concealment)
+        return;
+
+    if (!s->mecc_inited) {
+        ff_me_cmp_init(&s->mecc, s->avctx);
+        s->mecc_inited = 1;
+    }
+
+    memset(s->error_status_table, ER_MB_ERROR | VP_START | ER_MB_END,
+           s->mb_stride * s->mb_height * sizeof(uint8_t));
+    atomic_init(&s->error_count, 3 * s->mb_num);
+    s->error_occurred = 0;
+}
+
+static int er_supported(ERContext *s)
+{
+    if(s->avctx->hwaccel && s->avctx->hwaccel->decode_slice           ||
+       !s->cur_pic.f                                                  ||
+       s->cur_pic.field_picture
+    )
+        return 0;
+    return 1;
+}
+
+/**
+ * Add a slice.
+ * @param endx   x component of the last macroblock, can be -1
+ *               for the last of the previous line
+ * @param status the status at the end (ER_MV_END, ER_AC_ERROR, ...), it is
+ *               assumed that no earlier end or error of the same type occurred
+ */
+void ff_er_add_slice(ERContext *s, int startx, int starty,
+                     int endx, int endy, int status)
+{
+    const int start_i  = av_clip(startx + starty * s->mb_width, 0, s->mb_num - 1);
+    const int end_i    = av_clip(endx   + endy   * s->mb_width, 0, s->mb_num);
+    const int start_xy = s->mb_index2xy[start_i];
+    const int end_xy   = s->mb_index2xy[end_i];
+    int mask           = -1;
+
+    if (s->avctx->hwaccel && s->avctx->hwaccel->decode_slice)
+        return;
+
+    if (start_i > end_i || start_xy > end_xy) {
+        av_log(s->avctx, AV_LOG_ERROR,
+               "internal error, slice end before start\n");
+        return;
+    }
+
+    if (!s->avctx->error_concealment)
+        return;
+
+    mask &= ~VP_START;
+    if (status & (ER_AC_ERROR | ER_AC_END)) {
+        mask           &= ~(ER_AC_ERROR | ER_AC_END);
+        atomic_fetch_add(&s->error_count, start_i - end_i - 1);
+    }
+    if (status & (ER_DC_ERROR | ER_DC_END)) {
+        mask           &= ~(ER_DC_ERROR | ER_DC_END);
+        atomic_fetch_add(&s->error_count, start_i - end_i - 1);
+    }
+    if (status & (ER_MV_ERROR | ER_MV_END)) {
+        mask           &= ~(ER_MV_ERROR | ER_MV_END);
+        atomic_fetch_add(&s->error_count, start_i - end_i - 1);
+    }
+
+    if (status & ER_MB_ERROR) {
+        s->error_occurred = 1;
+        atomic_store(&s->error_count, INT_MAX);
+    }
+
+    if (mask == ~0x7F) {
+        memset(&s->error_status_table[start_xy], 0,
+               (end_xy - start_xy) * sizeof(uint8_t));
+    } else {
+        int i;
+        for (i = start_xy; i < end_xy; i++)
+            s->error_status_table[i] &= mask;
+    }
+
+    if (end_i == s->mb_num)
+        atomic_store(&s->error_count, INT_MAX);
+    else {
+        s->error_status_table[end_xy] &= mask;
+        s->error_status_table[end_xy] |= status;
+    }
+
+    s->error_status_table[start_xy] |= VP_START;
+
+    if (start_xy > 0 && !(s->avctx->active_thread_type & FF_THREAD_SLICE) &&
+        er_supported(s) && s->avctx->skip_top * s->mb_width < start_i) {
+        int prev_status = s->error_status_table[s->mb_index2xy[start_i - 1]];
+
+        prev_status &= ~ VP_START;
+        if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END)) {
+            s->error_occurred = 1;
+            atomic_store(&s->error_count, INT_MAX);
+        }
+    }
+}
+
+void ff_er_frame_end(ERContext *s)
+{
+    int *linesize = NULL;
+    int i, mb_x, mb_y, error, error_type, dc_error, mv_error, ac_error;
+    int distance;
+    int threshold_part[4] = { 100, 100, 100 };
+    int threshold = 50;
+    int is_intra_likely;
+    int size = s->b8_stride * 2 * s->mb_height;
+
+    /* We do not support ER of field pictures yet,
+     * though it should not crash if enabled. */
+    if (!s->avctx->error_concealment || !atomic_load(&s->error_count)  ||
+        s->avctx->lowres                                               ||
+        !er_supported(s)                                               ||
+        atomic_load(&s->error_count) == 3 * s->mb_width *
+                          (s->avctx->skip_top + s->avctx->skip_bottom)) {
+        return;
+    }
+    linesize = s->cur_pic.f->linesize;
+    for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
+        int status = s->error_status_table[mb_x + (s->mb_height - 1) * s->mb_stride];
+        if (status != 0x7F)
+            break;
+    }
+
+    if (   mb_x == s->mb_width
+        && s->avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO
+        && (FFALIGN(s->avctx->height, 16)&16)
+        && atomic_load(&s->error_count) == 3 * s->mb_width * (s->avctx->skip_top + s->avctx->skip_bottom + 1)
+    ) {
+        av_log(s->avctx, AV_LOG_DEBUG, "ignoring last missing slice\n");
+        return;
+    }
+
+    if (s->last_pic.f) {
+        if (s->last_pic.f->width  != s->cur_pic.f->width  ||
+            s->last_pic.f->height != s->cur_pic.f->height ||
+            s->last_pic.f->format != s->cur_pic.f->format) {
+            av_log(s->avctx, AV_LOG_WARNING, "Cannot use previous picture in error concealment\n");
+            memset(&s->last_pic, 0, sizeof(s->last_pic));
+        }
+    }
+    if (s->next_pic.f) {
+        if (s->next_pic.f->width  != s->cur_pic.f->width  ||
+            s->next_pic.f->height != s->cur_pic.f->height ||
+            s->next_pic.f->format != s->cur_pic.f->format) {
+            av_log(s->avctx, AV_LOG_WARNING, "Cannot use next picture in error concealment\n");
+            memset(&s->next_pic, 0, sizeof(s->next_pic));
+        }
+    }
+
+    if (!s->cur_pic.motion_val[0] || !s->cur_pic.ref_index[0]) {
+        av_log(s->avctx, AV_LOG_ERROR, "Warning MVs not available\n");
+
+        for (i = 0; i < 2; i++) {
+            s->ref_index_buf[i]  = av_buffer_allocz(s->mb_stride * s->mb_height * 4 * sizeof(uint8_t));
+            s->motion_val_buf[i] = av_buffer_allocz((size + 4) * 2 * sizeof(uint16_t));
+            if (!s->ref_index_buf[i] || !s->motion_val_buf[i])
+                break;
+            s->cur_pic.ref_index[i]  = s->ref_index_buf[i]->data;
+            s->cur_pic.motion_val[i] = (int16_t (*)[2])s->motion_val_buf[i]->data + 4;
+        }
+        if (i < 2) {
+            for (i = 0; i < 2; i++) {
+                av_buffer_unref(&s->ref_index_buf[i]);
+                av_buffer_unref(&s->motion_val_buf[i]);
+                s->cur_pic.ref_index[i]  = NULL;
+                s->cur_pic.motion_val[i] = NULL;
+            }
+            return;
+        }
+    }
+
+    if (s->avctx->debug & FF_DEBUG_ER) {
+        for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
+            for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
+                int status = s->error_status_table[mb_x + mb_y * s->mb_stride];
+
+                av_log(s->avctx, AV_LOG_DEBUG, "%2X ", status);
+            }
+            av_log(s->avctx, AV_LOG_DEBUG, "\n");
+        }
+    }
+
+#if 1
+    /* handle overlapping slices */
+    for (error_type = 1; error_type <= 3; error_type++) {
+        int end_ok = 0;
+
+        for (i = s->mb_num - 1; i >= 0; i--) {
+            const int mb_xy = s->mb_index2xy[i];
+            int error       = s->error_status_table[mb_xy];
+
+            if (error & (1 << error_type))
+                end_ok = 1;
+            if (error & (8 << error_type))
+                end_ok = 1;
+
+            if (!end_ok)
+                s->error_status_table[mb_xy] |= 1 << error_type;
+
+            if (error & VP_START)
+                end_ok = 0;
+        }
+    }
+#endif
+#if 1
+    /* handle slices with partitions of different length */
+    if (s->partitioned_frame) {
+        int end_ok = 0;
+
+        for (i = s->mb_num - 1; i >= 0; i--) {
+            const int mb_xy = s->mb_index2xy[i];
+            int error       = s->error_status_table[mb_xy];
+
+            if (error & ER_AC_END)
+                end_ok = 0;
+            if ((error & ER_MV_END) ||
+                (error & ER_DC_END) ||
+                (error & ER_AC_ERROR))
+                end_ok = 1;
+
+            if (!end_ok)
+                s->error_status_table[mb_xy]|= ER_AC_ERROR;
+
+            if (error & VP_START)
+                end_ok = 0;
+        }
+    }
+#endif
+    /* handle missing slices */
+    if (s->avctx->err_recognition & AV_EF_EXPLODE) {
+        int end_ok = 1;
+
+        // FIXME + 100 hack
+        for (i = s->mb_num - 2; i >= s->mb_width + 100; i--) {
+            const int mb_xy = s->mb_index2xy[i];
+            int error1 = s->error_status_table[mb_xy];
+            int error2 = s->error_status_table[s->mb_index2xy[i + 1]];
+
+            if (error1 & VP_START)
+                end_ok = 1;
+
+            if (error2 == (VP_START | ER_MB_ERROR | ER_MB_END) &&
+                error1 != (VP_START | ER_MB_ERROR | ER_MB_END) &&
+                ((error1 & ER_AC_END) || (error1 & ER_DC_END) ||
+                (error1 & ER_MV_END))) {
+                // end & uninit
+                end_ok = 0;
+            }
+
+            if (!end_ok)
+                s->error_status_table[mb_xy] |= ER_MB_ERROR;
+        }
+    }
+
+#if 1
+    /* backward mark errors */
+    distance = 9999999;
+    for (error_type = 1; error_type <= 3; error_type++) {
+        for (i = s->mb_num - 1; i >= 0; i--) {
+            const int mb_xy = s->mb_index2xy[i];
+            int       error = s->error_status_table[mb_xy];
+
+            if (!s->mbskip_table || !s->mbskip_table[mb_xy]) // FIXME partition specific
+                distance++;
+            if (error & (1 << error_type))
+                distance = 0;
+
+            if (s->partitioned_frame) {
+                if (distance < threshold_part[error_type - 1])
+                    s->error_status_table[mb_xy] |= 1 << error_type;
+            } else {
+                if (distance < threshold)
+                    s->error_status_table[mb_xy] |= 1 << error_type;
+            }
+
+            if (error & VP_START)
+                distance = 9999999;
+        }
+    }
+#endif
+
+    /* forward mark errors */
+    error = 0;
+    for (i = 0; i < s->mb_num; i++) {
+        const int mb_xy = s->mb_index2xy[i];
+        int old_error   = s->error_status_table[mb_xy];
+
+        if (old_error & VP_START) {
+            error = old_error & ER_MB_ERROR;
+        } else {
+            error |= old_error & ER_MB_ERROR;
+            s->error_status_table[mb_xy] |= error;
+        }
+    }
+#if 1
+    /* handle not partitioned case */
+    if (!s->partitioned_frame) {
+        for (i = 0; i < s->mb_num; i++) {
+            const int mb_xy = s->mb_index2xy[i];
+            int error = s->error_status_table[mb_xy];
+            if (error & ER_MB_ERROR)
+                error |= ER_MB_ERROR;
+            s->error_status_table[mb_xy] = error;
+        }
+    }
+#endif
+
+    dc_error = ac_error = mv_error = 0;
+    for (i = 0; i < s->mb_num; i++) {
+        const int mb_xy = s->mb_index2xy[i];
+        int error = s->error_status_table[mb_xy];
+        if (error & ER_DC_ERROR)
+            dc_error++;
+        if (error & ER_AC_ERROR)
+            ac_error++;
+        if (error & ER_MV_ERROR)
+            mv_error++;
+    }
+    av_log(s->avctx, AV_LOG_INFO, "concealing %d DC, %d AC, %d MV errors in %c frame\n",
+           dc_error, ac_error, mv_error, av_get_picture_type_char(s->cur_pic.f->pict_type));
+
+    s->cur_pic.f->decode_error_flags |= FF_DECODE_ERROR_CONCEALMENT_ACTIVE;
+
+    is_intra_likely = is_intra_more_likely(s);
+
+    /* set unknown mb-type to most likely */
+    for (i = 0; i < s->mb_num; i++) {
+        const int mb_xy = s->mb_index2xy[i];
+        int error = s->error_status_table[mb_xy];
+        if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR)))
+            continue;
+
+        if (is_intra_likely)
+            s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4;
+        else
+            s->cur_pic.mb_type[mb_xy] = MB_TYPE_16x16 | MB_TYPE_L0;
+    }
+
+    // change inter to intra blocks if no reference frames are available
+    if (!(s->last_pic.f && s->last_pic.f->data[0]) &&
+        !(s->next_pic.f && s->next_pic.f->data[0]))
+        for (i = 0; i < s->mb_num; i++) {
+            const int mb_xy = s->mb_index2xy[i];
+            if (!IS_INTRA(s->cur_pic.mb_type[mb_xy]))
+                s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4;
+        }
+
+    /* handle inter blocks with damaged AC */
+    for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
+        for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
+            const int mb_xy   = mb_x + mb_y * s->mb_stride;
+            const int mb_type = s->cur_pic.mb_type[mb_xy];
+            const int dir     = !(s->last_pic.f && s->last_pic.f->data[0]);
+            const int mv_dir  = dir ? MV_DIR_BACKWARD : MV_DIR_FORWARD;
+            int mv_type;
+
+            int error = s->error_status_table[mb_xy];
+
+            if (IS_INTRA(mb_type))
+                continue; // intra
+            if (error & ER_MV_ERROR)
+                continue; // inter with damaged MV
+            if (!(error & ER_AC_ERROR))
+                continue; // undamaged inter
+
+            if (IS_8X8(mb_type)) {
+                int mb_index = mb_x * 2 + mb_y * 2 * s->b8_stride;
+                int j;
+                mv_type = MV_TYPE_8X8;
+                for (j = 0; j < 4; j++) {
+                    s->mv[0][j][0] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][0];
+                    s->mv[0][j][1] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][1];
+                }
+            } else {
+                mv_type     = MV_TYPE_16X16;
+                s->mv[0][0][0] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][0];
+                s->mv[0][0][1] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][1];
+            }
+
+            s->decode_mb(s->opaque, 0 /* FIXME H.264 partitioned slices need this set */,
+                         mv_dir, mv_type, &s->mv, mb_x, mb_y, 0, 0);
+        }
+    }
+
+    /* guess MVs */
+    if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_B) {
+        for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
+            for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
+                int       xy      = mb_x * 2 + mb_y * 2 * s->b8_stride;
+                const int mb_xy   = mb_x + mb_y * s->mb_stride;
+                const int mb_type = s->cur_pic.mb_type[mb_xy];
+                int mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
+
+                int error = s->error_status_table[mb_xy];
+
+                if (IS_INTRA(mb_type))
+                    continue;
+                if (!(error & ER_MV_ERROR))
+                    continue; // inter with undamaged MV
+                if (!(error & ER_AC_ERROR))
+                    continue; // undamaged inter
+
+                if (!(s->last_pic.f && s->last_pic.f->data[0]))
+                    mv_dir &= ~MV_DIR_FORWARD;
+                if (!(s->next_pic.f && s->next_pic.f->data[0]))
+                    mv_dir &= ~MV_DIR_BACKWARD;
+
+                if (s->pp_time) {
+                    int time_pp = s->pp_time;
+                    int time_pb = s->pb_time;
+
+                    av_assert0(s->avctx->codec_id != AV_CODEC_ID_H264);
+                    ff_thread_await_progress(s->next_pic.tf, mb_y, 0);
+
+                    s->mv[0][0][0] = s->next_pic.motion_val[0][xy][0] *  time_pb            / time_pp;
+                    s->mv[0][0][1] = s->next_pic.motion_val[0][xy][1] *  time_pb            / time_pp;
+                    s->mv[1][0][0] = s->next_pic.motion_val[0][xy][0] * (time_pb - time_pp) / time_pp;
+                    s->mv[1][0][1] = s->next_pic.motion_val[0][xy][1] * (time_pb - time_pp) / time_pp;
+                } else {
+                    s->mv[0][0][0] = 0;
+                    s->mv[0][0][1] = 0;
+                    s->mv[1][0][0] = 0;
+                    s->mv[1][0][1] = 0;
+                }
+
+                s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv,
+                             mb_x, mb_y, 0, 0);
+            }
+        }
+    } else
+        guess_mv(s);
+
+    /* the filters below manipulate raw image, skip them */
+    if (CONFIG_XVMC && s->avctx->hwaccel && s->avctx->hwaccel->decode_mb)
+        goto ec_clean;
+    /* fill DC for inter blocks */
+    for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
+        for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
+            int dc, dcu, dcv, y, n;
+            int16_t *dc_ptr;
+            uint8_t *dest_y, *dest_cb, *dest_cr;
+            const int mb_xy   = mb_x + mb_y * s->mb_stride;
+            const int mb_type = s->cur_pic.mb_type[mb_xy];
+
+            // error = s->error_status_table[mb_xy];
+
+            if (IS_INTRA(mb_type) && s->partitioned_frame)
+                continue;
+            // if (error & ER_MV_ERROR)
+            //     continue; // inter data damaged FIXME is this good?
+
+            dest_y  = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0];
+            dest_cb = s->cur_pic.f->data[1] + mb_x *  8 + mb_y *  8 * linesize[1];
+            dest_cr = s->cur_pic.f->data[2] + mb_x *  8 + mb_y *  8 * linesize[2];
+
+            dc_ptr = &s->dc_val[0][mb_x * 2 + mb_y * 2 * s->b8_stride];
+            for (n = 0; n < 4; n++) {
+                dc = 0;
+                for (y = 0; y < 8; y++) {
+                    int x;
+                    for (x = 0; x < 8; x++)
+                       dc += dest_y[x + (n & 1) * 8 +
+                             (y + (n >> 1) * 8) * linesize[0]];
+                }
+                dc_ptr[(n & 1) + (n >> 1) * s->b8_stride] = (dc + 4) >> 3;
+            }
+
+            if (!s->cur_pic.f->data[2])
+                continue;
+
+            dcu = dcv = 0;
+            for (y = 0; y < 8; y++) {
+                int x;
+                for (x = 0; x < 8; x++) {
+                    dcu += dest_cb[x + y * linesize[1]];
+                    dcv += dest_cr[x + y * linesize[2]];
+                }
+            }
+            s->dc_val[1][mb_x + mb_y * s->mb_stride] = (dcu + 4) >> 3;
+            s->dc_val[2][mb_x + mb_y * s->mb_stride] = (dcv + 4) >> 3;
+        }
+    }
+#if 1
+    /* guess DC for damaged blocks */
+    guess_dc(s, s->dc_val[0], s->mb_width*2, s->mb_height*2, s->b8_stride, 1);
+    guess_dc(s, s->dc_val[1], s->mb_width  , s->mb_height  , s->mb_stride, 0);
+    guess_dc(s, s->dc_val[2], s->mb_width  , s->mb_height  , s->mb_stride, 0);
+#endif
+
+    /* filter luma DC */
+    filter181(s->dc_val[0], s->mb_width * 2, s->mb_height * 2, s->b8_stride);
+
+#if 1
+    /* render DC only intra */
+    for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
+        for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
+            uint8_t *dest_y, *dest_cb, *dest_cr;
+            const int mb_xy   = mb_x + mb_y * s->mb_stride;
+            const int mb_type = s->cur_pic.mb_type[mb_xy];
+
+            int error = s->error_status_table[mb_xy];
+
+            if (IS_INTER(mb_type))
+                continue;
+            if (!(error & ER_AC_ERROR))
+                continue; // undamaged
+
+            dest_y  = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0];
+            dest_cb = s->cur_pic.f->data[1] + mb_x *  8 + mb_y *  8 * linesize[1];
+            dest_cr = s->cur_pic.f->data[2] + mb_x *  8 + mb_y *  8 * linesize[2];
+            if (!s->cur_pic.f->data[2])
+                dest_cb = dest_cr = NULL;
+
+            put_dc(s, dest_y, dest_cb, dest_cr, mb_x, mb_y);
+        }
+    }
+#endif
+
+    if (s->avctx->error_concealment & FF_EC_DEBLOCK) {
+        /* filter horizontal block boundaries */
+        h_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2,
+                       s->mb_height * 2, linesize[0], 1);
+
+        /* filter vertical block boundaries */
+        v_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2,
+                       s->mb_height * 2, linesize[0], 1);
+
+        if (s->cur_pic.f->data[2]) {
+            h_block_filter(s, s->cur_pic.f->data[1], s->mb_width,
+                        s->mb_height, linesize[1], 0);
+            h_block_filter(s, s->cur_pic.f->data[2], s->mb_width,
+                        s->mb_height, linesize[2], 0);
+            v_block_filter(s, s->cur_pic.f->data[1], s->mb_width,
+                        s->mb_height, linesize[1], 0);
+            v_block_filter(s, s->cur_pic.f->data[2], s->mb_width,
+                        s->mb_height, linesize[2], 0);
+        }
+    }
+
+ec_clean:
+    /* clean a few tables */
+    for (i = 0; i < s->mb_num; i++) {
+        const int mb_xy = s->mb_index2xy[i];
+        int       error = s->error_status_table[mb_xy];
+
+        if (s->mbskip_table && s->cur_pic.f->pict_type != AV_PICTURE_TYPE_B &&
+            (error & (ER_DC_ERROR | ER_MV_ERROR | ER_AC_ERROR))) {
+            s->mbskip_table[mb_xy] = 0;
+        }
+        if (s->mbintra_table)
+            s->mbintra_table[mb_xy] = 1;
+    }
+
+    for (i = 0; i < 2; i++) {
+        av_buffer_unref(&s->ref_index_buf[i]);
+        av_buffer_unref(&s->motion_val_buf[i]);
+        s->cur_pic.ref_index[i]  = NULL;
+        s->cur_pic.motion_val[i] = NULL;
+    }
+
+    memset(&s->cur_pic, 0, sizeof(ERPicture));
+    memset(&s->last_pic, 0, sizeof(ERPicture));
+    memset(&s->next_pic, 0, sizeof(ERPicture));
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/error_resilience.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/error_resilience.h
new file mode 100644
index 000000000..664a76565
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/error_resilience.h
@@ -0,0 +1,97 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_ERROR_RESILIENCE_H
+#define AVCODEC_ERROR_RESILIENCE_H
+
+#include <stdint.h>
+#include <stdatomic.h>
+
+#include "avcodec.h"
+#include "me_cmp.h"
+#include "thread.h"
+
+///< current MB is the first after a resync marker
+#define VP_START               1
+#define ER_AC_ERROR            2
+#define ER_DC_ERROR            4
+#define ER_MV_ERROR            8
+#define ER_AC_END              16
+#define ER_DC_END              32
+#define ER_MV_END              64
+
+#define ER_MB_ERROR (ER_AC_ERROR|ER_DC_ERROR|ER_MV_ERROR)
+#define ER_MB_END   (ER_AC_END|ER_DC_END|ER_MV_END)
+
+typedef struct ERPicture {
+    AVFrame *f;
+    ThreadFrame *tf;
+
+    // it is the caller's responsibility to allocate these buffers
+    int16_t (*motion_val[2])[2];
+    int8_t *ref_index[2];
+
+    uint32_t *mb_type;
+    int field_picture;
+} ERPicture;
+
+typedef struct ERContext {
+    AVCodecContext *avctx;
+    MECmpContext mecc;
+    int mecc_inited;
+
+    int *mb_index2xy;
+    int mb_num;
+    int mb_width, mb_height;
+    ptrdiff_t mb_stride;
+    ptrdiff_t b8_stride;
+
+    atomic_int error_count;
+    int error_occurred;
+    uint8_t *error_status_table;
+    uint8_t *er_temp_buffer;
+    int16_t *dc_val[3];
+    uint8_t *mbskip_table;
+    uint8_t *mbintra_table;
+    int mv[2][4][2];
+
+    ERPicture cur_pic;
+    ERPicture last_pic;
+    ERPicture next_pic;
+
+    AVBufferRef *ref_index_buf[2];
+    AVBufferRef *motion_val_buf[2];
+
+    uint16_t pp_time;
+    uint16_t pb_time;
+    int quarter_sample;
+    int partitioned_frame;
+    int ref_count;
+
+    void (*decode_mb)(void *opaque, int ref, int mv_dir, int mv_type,
+                      int (*mv)[2][4][2],
+                      int mb_x, int mb_y, int mb_intra, int mb_skipped);
+    void *opaque;
+} ERContext;
+
+void ff_er_frame_start(ERContext *s);
+void ff_er_frame_end(ERContext *s);
+void ff_er_add_slice(ERContext *s, int startx, int starty, int endx, int endy,
+                     int status);
+
+#endif /* AVCODEC_ERROR_RESILIENCE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fdctdsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fdctdsp.h
new file mode 100644
index 000000000..3e1f683b9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fdctdsp.h
@@ -0,0 +1,37 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_FDCTDSP_H
+#define AVCODEC_FDCTDSP_H
+
+#include <stdint.h>
+
+#include "avcodec.h"
+
+typedef struct FDCTDSPContext {
+    void (*fdct)(int16_t *block /* align 16 */);
+    void (*fdct248)(int16_t *block /* align 16 */);
+} FDCTDSPContext;
+
+void ff_fdctdsp_init(FDCTDSPContext *c, AVCodecContext *avctx);
+void ff_fdctdsp_init_ppc(FDCTDSPContext *c, AVCodecContext *avctx,
+                         unsigned high_bit_depth);
+void ff_fdctdsp_init_x86(FDCTDSPContext *c, AVCodecContext *avctx,
+                         unsigned high_bit_depth);
+
+#endif /* AVCODEC_FDCTDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft-internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft-internal.h
new file mode 100644
index 000000000..0a8f7d05c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft-internal.h
@@ -0,0 +1,94 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_FFT_INTERNAL_H
+#define AVCODEC_FFT_INTERNAL_H
+
+#if FFT_FLOAT
+
+#define FIX15(v) (v)
+#define sqrthalf (float)M_SQRT1_2
+
+#define BF(x, y, a, b) do {                     \
+        x = a - b;                              \
+        y = a + b;                              \
+    } while (0)
+
+#define CMUL(dre, dim, are, aim, bre, bim) do { \
+        (dre) = (are) * (bre) - (aim) * (bim);  \
+        (dim) = (are) * (bim) + (aim) * (bre);  \
+    } while (0)
+
+#else
+
+#define SCALE_FLOAT(a, bits) lrint((a) * (double)(1 << (bits)))
+
+#if FFT_FIXED_32
+
+#define CMUL(dre, dim, are, aim, bre, bim) do {             \
+        int64_t accu;                                     \
+        (accu)  = (int64_t)(bre) * (are);                 \
+        (accu) -= (int64_t)(bim) * (aim);                 \
+        (dre)   = (int)(((accu) + 0x40000000) >> 31);       \
+        (accu)  = (int64_t)(bre) * (aim);                 \
+        (accu) += (int64_t)(bim) * (are);                 \
+        (dim)   = (int)(((accu) + 0x40000000) >> 31);       \
+    } while (0)
+
+#define FIX15(a) av_clip(SCALE_FLOAT(a, 31), -2147483647, 2147483647)
+
+#else /* FFT_FIXED_32 */
+
+#include "fft.h"
+#include "mathops.h"
+
+void ff_mdct_calcw_c(FFTContext *s, FFTDouble *output, const FFTSample *input);
+
+#define FIX15(a) av_clip(SCALE_FLOAT(a, 15), -32767, 32767)
+
+#define sqrthalf ((int16_t)((1<<15)*M_SQRT1_2))
+
+#define BF(x, y, a, b) do {                     \
+        x = (a - b) >> 1;                       \
+        y = (a + b) >> 1;                       \
+    } while (0)
+
+#define CMULS(dre, dim, are, aim, bre, bim, sh) do {            \
+        (dre) = (MUL16(are, bre) - MUL16(aim, bim)) >> sh;      \
+        (dim) = (MUL16(are, bim) + MUL16(aim, bre)) >> sh;      \
+    } while (0)
+
+#define CMUL(dre, dim, are, aim, bre, bim)      \
+    CMULS(dre, dim, are, aim, bre, bim, 15)
+
+#define CMULL(dre, dim, are, aim, bre, bim)     \
+    CMULS(dre, dim, are, aim, bre, bim, 0)
+
+#endif /* FFT_FIXED_32 */
+
+#endif /* FFT_FLOAT */
+
+#define ff_imdct_calc_c FFT_NAME(ff_imdct_calc_c)
+#define ff_imdct_half_c FFT_NAME(ff_imdct_half_c)
+#define ff_mdct_calc_c  FFT_NAME(ff_mdct_calc_c)
+
+void ff_imdct_calc_c(FFTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_half_c(FFTContext *s, FFTSample *output, const FFTSample *input);
+void ff_mdct_calc_c(FFTContext *s, FFTSample *output, const FFTSample *input);
+
+#endif /* AVCODEC_FFT_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft.h
new file mode 100644
index 000000000..c858570a2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft.h
@@ -0,0 +1,175 @@
+/*
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_FFT_H
+#define AVCODEC_FFT_H
+
+#ifndef FFT_FLOAT
+#define FFT_FLOAT 1
+#endif
+
+#ifndef FFT_FIXED_32
+#define FFT_FIXED_32 0
+#endif
+
+#include <stdint.h>
+#include "config.h"
+#include "libavutil/mem.h"
+
+#if FFT_FLOAT
+
+#include "avfft.h"
+
+#define FFT_NAME(x) x
+
+typedef float FFTDouble;
+
+#else
+
+#if FFT_FIXED_32
+
+#define Q31(x) (int)((x)*2147483648.0 + 0.5)
+#define FFT_NAME(x) x ## _fixed_32
+
+typedef int32_t FFTSample;
+
+#else /* FFT_FIXED_32 */
+
+#define FFT_NAME(x) x ## _fixed
+
+typedef int16_t FFTSample;
+
+#endif /* FFT_FIXED_32 */
+
+typedef struct FFTComplex {
+    FFTSample re, im;
+} FFTComplex;
+
+typedef int    FFTDouble;
+typedef struct FFTContext FFTContext;
+
+#endif /* FFT_FLOAT */
+
+typedef struct FFTDComplex {
+    FFTDouble re, im;
+} FFTDComplex;
+
+/* FFT computation */
+
+enum fft_permutation_type {
+    FF_FFT_PERM_DEFAULT,
+    FF_FFT_PERM_SWAP_LSBS,
+    FF_FFT_PERM_AVX,
+};
+
+enum mdct_permutation_type {
+    FF_MDCT_PERM_NONE,
+    FF_MDCT_PERM_INTERLEAVE,
+};
+
+struct FFTContext {
+    int nbits;
+    int inverse;
+    uint16_t *revtab;
+    FFTComplex *tmp_buf;
+    int mdct_size; /* size of MDCT (i.e. number of input data * 2) */
+    int mdct_bits; /* n = 2^nbits */
+    /* pre/post rotation tables */
+    FFTSample *tcos;
+    FFTSample *tsin;
+    /**
+     * Do the permutation needed BEFORE calling fft_calc().
+     */
+    void (*fft_permute)(struct FFTContext *s, FFTComplex *z);
+    /**
+     * Do a complex FFT with the parameters defined in ff_fft_init(). The
+     * input data must be permuted before. No 1.0/sqrt(n) normalization is done.
+     */
+    void (*fft_calc)(struct FFTContext *s, FFTComplex *z);
+    void (*imdct_calc)(struct FFTContext *s, FFTSample *output, const FFTSample *input);
+    void (*imdct_half)(struct FFTContext *s, FFTSample *output, const FFTSample *input);
+    void (*mdct_calc)(struct FFTContext *s, FFTSample *output, const FFTSample *input);
+    void (*mdct_calcw)(struct FFTContext *s, FFTDouble *output, const FFTSample *input);
+    enum fft_permutation_type fft_permutation;
+    enum mdct_permutation_type mdct_permutation;
+    uint32_t *revtab32;
+};
+
+#if CONFIG_HARDCODED_TABLES
+#define COSTABLE_CONST const
+#else
+#define COSTABLE_CONST
+#endif
+
+#define COSTABLE(size) \
+    COSTABLE_CONST DECLARE_ALIGNED(32, FFTSample, FFT_NAME(ff_cos_##size))[size/2]
+
+extern COSTABLE(16);
+extern COSTABLE(32);
+extern COSTABLE(64);
+extern COSTABLE(128);
+extern COSTABLE(256);
+extern COSTABLE(512);
+extern COSTABLE(1024);
+extern COSTABLE(2048);
+extern COSTABLE(4096);
+extern COSTABLE(8192);
+extern COSTABLE(16384);
+extern COSTABLE(32768);
+extern COSTABLE(65536);
+extern COSTABLE(131072);
+extern COSTABLE_CONST FFTSample* const FFT_NAME(ff_cos_tabs)[18];
+
+#define ff_init_ff_cos_tabs FFT_NAME(ff_init_ff_cos_tabs)
+
+/**
+ * Initialize the cosine table in ff_cos_tabs[index]
+ * @param index index in ff_cos_tabs array of the table to initialize
+ */
+void ff_init_ff_cos_tabs(int index);
+
+#define ff_fft_init FFT_NAME(ff_fft_init)
+#define ff_fft_end  FFT_NAME(ff_fft_end)
+
+/**
+ * Set up a complex FFT.
+ * @param nbits           log2 of the length of the input array
+ * @param inverse         if 0 perform the forward transform, if 1 perform the inverse
+ */
+int ff_fft_init(FFTContext *s, int nbits, int inverse);
+
+void ff_fft_init_aarch64(FFTContext *s);
+void ff_fft_init_x86(FFTContext *s);
+void ff_fft_init_arm(FFTContext *s);
+void ff_fft_init_mips(FFTContext *s);
+void ff_fft_init_ppc(FFTContext *s);
+
+void ff_fft_fixed_init_arm(FFTContext *s);
+
+void ff_fft_end(FFTContext *s);
+
+#define ff_mdct_init FFT_NAME(ff_mdct_init)
+#define ff_mdct_end  FFT_NAME(ff_mdct_end)
+
+int ff_mdct_init(FFTContext *s, int nbits, int inverse, double scale);
+void ff_mdct_end(FFTContext *s);
+
+#endif /* AVCODEC_FFT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_fixed.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_fixed.c
new file mode 100644
index 000000000..3d3bd2fca
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_fixed.c
@@ -0,0 +1,21 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define FFT_FLOAT 0
+#define FFT_FIXED_32 0
+#include "fft_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_fixed_32.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_fixed_32.c
new file mode 100644
index 000000000..fbdbf847e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_fixed_32.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2012
+ *      MIPS Technologies, Inc., California.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Authors:  Stanislav Ocovaj (socovaj@mips.com)
+ *           Goran Cordasic   (goran@mips.com)
+ *           Djordje Pesut    (djordje@mips.com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define FFT_FLOAT 0
+#define FFT_FIXED_32 1
+#include "fft_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_float.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_float.c
new file mode 100644
index 000000000..73cc98d0d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_float.c
@@ -0,0 +1,21 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define FFT_FLOAT 1
+#define FFT_FIXED_32 0
+#include "fft_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_init.c
new file mode 100644
index 000000000..928f1dcda
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_init.c
@@ -0,0 +1,61 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+
+#include "fft.h"
+
+av_cold void ff_fft_init_x86(FFTContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (s->nbits > 16)
+        return;
+
+#if ARCH_X86_32
+    if (EXTERNAL_AMD3DNOW(cpu_flags)) {
+        s->imdct_calc = ff_imdct_calc_3dnow;
+        s->imdct_half = ff_imdct_half_3dnow;
+        s->fft_calc   = ff_fft_calc_3dnow;
+    }
+
+    if (EXTERNAL_AMD3DNOWEXT(cpu_flags)) {
+        s->imdct_calc = ff_imdct_calc_3dnowext;
+        s->imdct_half = ff_imdct_half_3dnowext;
+        s->fft_calc   = ff_fft_calc_3dnowext;
+    }
+#endif /* ARCH_X86_32 */
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        s->imdct_calc  = ff_imdct_calc_sse;
+        s->imdct_half  = ff_imdct_half_sse;
+        s->fft_permute = ff_fft_permute_sse;
+        s->fft_calc    = ff_fft_calc_sse;
+        s->fft_permutation = FF_FFT_PERM_SWAP_LSBS;
+    }
+
+    if (EXTERNAL_AVX_FAST(cpu_flags) && s->nbits >= 5) {
+        s->imdct_half      = ff_imdct_half_avx;
+        s->fft_calc        = ff_fft_calc_avx;
+        s->fft_permutation = FF_FFT_PERM_AVX;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_init_table.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_init_table.c
new file mode 100644
index 000000000..c488018f6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_init_table.c
@@ -0,0 +1,328 @@
+/*
+ * Copyright (c) 2012
+ *      MIPS Technologies, Inc., California.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Authors:  Stanislav Ocovaj (socovaj@mips.com)
+ *           Goran Cordasic   (goran@mips.com)
+ *           Djordje Pesut    (djordje@mips.com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * definitions and initialization of LUT table for FFT
+ */
+#include "libavcodec/fft_table.h"
+
+const int32_t ff_w_tab_sr[MAX_FFT_SIZE/(4*16)] = {
+2147483647, 2147483016, 2147481121, 2147477963, 2147473542, 2147467857, 2147460908, 2147452697,
+2147443222, 2147432484, 2147420483, 2147407218, 2147392690, 2147376899, 2147359845, 2147341527,
+2147321946, 2147301102, 2147278995, 2147255625, 2147230991, 2147205094, 2147177934, 2147149511,
+2147119825, 2147088876, 2147056664, 2147023188, 2146988450, 2146952448, 2146915184, 2146876656,
+2146836866, 2146795813, 2146753497, 2146709917, 2146665076, 2146618971, 2146571603, 2146522973,
+2146473080, 2146421924, 2146369505, 2146315824, 2146260881, 2146204674, 2146147205, 2146088474,
+2146028480, 2145967224, 2145904705, 2145840924, 2145775880, 2145709574, 2145642006, 2145573176,
+2145503083, 2145431729, 2145359112, 2145285233, 2145210092, 2145133690, 2145056025, 2144977098,
+2144896910, 2144815460, 2144732748, 2144648774, 2144563539, 2144477042, 2144389283, 2144300264,
+2144209982, 2144118439, 2144025635, 2143931570, 2143836244, 2143739656, 2143641807, 2143542697,
+2143442326, 2143340694, 2143237802, 2143133648, 2143028234, 2142921559, 2142813624, 2142704427,
+2142593971, 2142482254, 2142369276, 2142255039, 2142139541, 2142022783, 2141904764, 2141785486,
+2141664948, 2141543150, 2141420092, 2141295774, 2141170197, 2141043360, 2140915264, 2140785908,
+2140655293, 2140523418, 2140390284, 2140255892, 2140120240, 2139983329, 2139845159, 2139705730,
+2139565043, 2139423097, 2139279892, 2139135429, 2138989708, 2138842728, 2138694490, 2138544994,
+2138394240, 2138242228, 2138088958, 2137934430, 2137778644, 2137621601, 2137463301, 2137303743,
+2137142927, 2136980855, 2136817525, 2136652938, 2136487095, 2136319994, 2136151637, 2135982023,
+2135811153, 2135639026, 2135465642, 2135291003, 2135115107, 2134937956, 2134759548, 2134579885,
+2134398966, 2134216791, 2134033361, 2133848675, 2133662734, 2133475538, 2133287087, 2133097381,
+2132906420, 2132714204, 2132520734, 2132326009, 2132130030, 2131932796, 2131734309, 2131534567,
+2131333572, 2131131322, 2130927819, 2130723062, 2130517052, 2130309789, 2130101272, 2129891502,
+2129680480, 2129468204, 2129254676, 2129039895, 2128823862, 2128606576, 2128388038, 2128168248,
+2127947206, 2127724913, 2127501367, 2127276570, 2127050522, 2126823222, 2126594672, 2126364870,
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+1126547765, 1125145168, 1123741908, 1122337987, 1120933406, 1119528166, 1118122267, 1116715710,
+1115308496, 1113900627, 1112492101, 1111082922, 1109673089, 1108262603, 1106851465, 1105439676,
+1104027237, 1102614148, 1101200410, 1099786025, 1098370993, 1096955314, 1095538991, 1094122023,
+1092704411, 1091286156, 1089867259, 1088447722, 1087027544, 1085606726, 1084185270, 1082763176,
+1081340445, 1079917078, 1078493076, 1077068439, 1075643169, 1074217266, 1072790730, 1071363564,
+1069935768, 1068507342, 1067078288, 1065648605, 1064218296, 1062787361, 1061355801, 1059923616,
+1058490808, 1057057377, 1055623324, 1054188651, 1052753357, 1051317443, 1049880912, 1048443763,
+1047005996, 1045567615, 1044128617, 1042689006, 1041248781, 1039807944, 1038366495, 1036924436,
+1035481766, 1034038487, 1032594600, 1031150105, 1029705004, 1028259297, 1026812985, 1025366069,
+1023918550, 1022470428, 1021021705, 1019572382, 1018122458, 1016671936, 1015220816, 1013769098,
+1012316784, 1010863875, 1009410370, 1007956272, 1006501581, 1005046298, 1003590424, 1002133959,
+1000676905, 999219262, 997761031, 996302214, 994842810, 993382821, 991922248, 990461091,
+988999351, 987537030, 986074127, 984610645, 983146583, 981681943, 980216726, 978750932,
+977284562, 975817617, 974350098, 972882006, 971413342, 969944106, 968474300, 967003923,
+965532978, 964061465, 962589385, 961116739, 959643527, 958169751, 956695411, 955220508,
+953745043, 952269017, 950792431, 949315286, 947837582, 946359321, 944880503, 943401129,
+941921200, 940440717, 938959681, 937478092, 935995952, 934513261, 933030021, 931546231,
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+572761285, 571173682, 569585743, 567997469, 566408860, 564819919, 563230645, 561641039,
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+289009871, 287377671, 285745302, 284112765, 282480061, 280847190, 279214155, 277580955,
+275947592, 274314066, 272680379, 271046532, 269412525, 267778360, 266144038, 264509558,
+262874923, 261240134, 259605191, 257970095, 256334847, 254699448, 253063900, 251428203,
+249792358, 248156366, 246520228, 244883945, 243247518, 241610947, 239974235, 238337382,
+236700388, 235063255, 233425984, 231788575, 230151030, 228513350, 226875535, 225237587,
+223599506, 221961294, 220322951, 218684479, 217045878, 215407149, 213768293, 212129312,
+210490206, 208850976, 207211624, 205572149, 203932553, 202292838, 200653003, 199013051,
+197372981, 195732795, 194092495, 192452080, 190811551, 189170911, 187530159, 185889297,
+184248325, 182607245, 180966058, 179324764, 177683365, 176041861, 174400254, 172758544,
+171116733, 169474820, 167832808, 166190698, 164548489, 162906184, 161263783, 159621287,
+157978697, 156336015, 154693240, 153050374, 151407418, 149764374, 148121241, 146478021,
+144834714, 143191323, 141547847, 139904288, 138260647, 136616925, 134973122, 133329239,
+131685278, 130041240, 128397125, 126752935, 125108670, 123464332, 121819921, 120175438,
+118530885, 116886262, 115241570, 113596810, 111951983, 110307091, 108662134, 107017112,
+105372028, 103726882, 102081675, 100436408,  98791081,  97145697,  95500255,  93854758,
+ 92209205,  90563597,  88917937,  87272224,  85626460,  83980645,  82334782,  80688869,
+ 79042909,  77396903,  75750851,  74104755,  72458615,  70812432,  69166208,  67519943,
+ 65873638,  64227295,  62580914,  60934496,  59288042,  57641553,  55995030,  54348475,
+ 52701887,  51055268,  49408620,  47761942,  46115236,  44468503,  42821744,  41174960,
+ 39528151,  37881320,  36234466,  34587590,  32940695,  31293780,  29646846,  27999895,
+ 26352928,  24705945,  23058947,  21411936,  19764913,  18117878,  16470832,  14823776,
+ 13176712,  11529640,   9882561,   8235476,   6588387,   4941294,   3294197,   1647099
+};
+
+uint16_t ff_fft_offsets_lut[21845];
+
+void ff_fft_lut_init(uint16_t *table, int off, int size, int *index)
+{
+    if (size < 16) {
+        table[*index] = off >> 2;
+        (*index)++;
+    }
+    else {
+        ff_fft_lut_init(table, off, size>>1, index);
+        ff_fft_lut_init(table, off+(size>>1), size>>2, index);
+        ff_fft_lut_init(table, off+3*(size>>2), size>>2, index);
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_table.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_table.h
new file mode 100644
index 000000000..ed0a6588b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_table.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2012
+ *      MIPS Technologies, Inc., California.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Authors:  Stanislav Ocovaj (socovaj@mips.com)
+ *           Goran Cordasic   (goran@mips.com)
+ *           Djordje Pesut    (djordje@mips.com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * definitions and tables for FFT
+ */
+#ifndef AVCODEC_FFT_TABLE_H
+#define AVCODEC_FFT_TABLE_H
+
+#include "libavcodec/fft.h"
+
+#define MAX_LOG2_NFFT 17 //!< Specifies maximum allowed fft size
+#define MAX_FFT_SIZE (1 << MAX_LOG2_NFFT)
+
+extern const int32_t ff_w_tab_sr[];
+extern uint16_t ff_fft_offsets_lut[];
+void ff_fft_lut_init(uint16_t *table, int off, int size, int *index);
+
+#endif /* AVCODEC_FFT_TABLE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_template.c
new file mode 100644
index 000000000..20a62e429
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/fft_template.c
@@ -0,0 +1,639 @@
+/*
+ * FFT/IFFT transforms
+ * Copyright (c) 2008 Loren Merritt
+ * Copyright (c) 2002 Fabrice Bellard
+ * Partly based on libdjbfft by D. J. Bernstein
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * FFT/IFFT transforms.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include "libavutil/mathematics.h"
+#include "libavutil/thread.h"
+#include "fft.h"
+#include "fft-internal.h"
+
+#if FFT_FIXED_32
+#include "fft_table.h"
+
+static void av_cold fft_lut_init(void)
+{
+    int n = 0;
+    ff_fft_lut_init(ff_fft_offsets_lut, 0, 1 << 17, &n);
+}
+
+#else /* FFT_FIXED_32 */
+
+/* cos(2*pi*x/n) for 0<=x<=n/4, followed by its reverse */
+#if !CONFIG_HARDCODED_TABLES
+COSTABLE(16);
+COSTABLE(32);
+COSTABLE(64);
+COSTABLE(128);
+COSTABLE(256);
+COSTABLE(512);
+COSTABLE(1024);
+COSTABLE(2048);
+COSTABLE(4096);
+COSTABLE(8192);
+COSTABLE(16384);
+COSTABLE(32768);
+COSTABLE(65536);
+COSTABLE(131072);
+
+static av_cold void init_ff_cos_tabs(int index)
+{
+    int i;
+    int m = 1<<index;
+    double freq = 2*M_PI/m;
+    FFTSample *tab = FFT_NAME(ff_cos_tabs)[index];
+    for(i=0; i<=m/4; i++)
+        tab[i] = FIX15(cos(i*freq));
+    for(i=1; i<m/4; i++)
+        tab[m/2-i] = tab[i];
+}
+
+typedef struct CosTabsInitOnce {
+    void (*func)(void);
+    AVOnce control;
+} CosTabsInitOnce;
+
+#define INIT_FF_COS_TABS_FUNC(index, size)          \
+static av_cold void init_ff_cos_tabs_ ## size (void)\
+{                                                   \
+    init_ff_cos_tabs(index);                        \
+}
+
+INIT_FF_COS_TABS_FUNC(4, 16)
+INIT_FF_COS_TABS_FUNC(5, 32)
+INIT_FF_COS_TABS_FUNC(6, 64)
+INIT_FF_COS_TABS_FUNC(7, 128)
+INIT_FF_COS_TABS_FUNC(8, 256)
+INIT_FF_COS_TABS_FUNC(9, 512)
+INIT_FF_COS_TABS_FUNC(10, 1024)
+INIT_FF_COS_TABS_FUNC(11, 2048)
+INIT_FF_COS_TABS_FUNC(12, 4096)
+INIT_FF_COS_TABS_FUNC(13, 8192)
+INIT_FF_COS_TABS_FUNC(14, 16384)
+INIT_FF_COS_TABS_FUNC(15, 32768)
+INIT_FF_COS_TABS_FUNC(16, 65536)
+INIT_FF_COS_TABS_FUNC(17, 131072)
+
+static CosTabsInitOnce cos_tabs_init_once[] = {
+    { NULL },
+    { NULL },
+    { NULL },
+    { NULL },
+    { init_ff_cos_tabs_16, AV_ONCE_INIT },
+    { init_ff_cos_tabs_32, AV_ONCE_INIT },
+    { init_ff_cos_tabs_64, AV_ONCE_INIT },
+    { init_ff_cos_tabs_128, AV_ONCE_INIT },
+    { init_ff_cos_tabs_256, AV_ONCE_INIT },
+    { init_ff_cos_tabs_512, AV_ONCE_INIT },
+    { init_ff_cos_tabs_1024, AV_ONCE_INIT },
+    { init_ff_cos_tabs_2048, AV_ONCE_INIT },
+    { init_ff_cos_tabs_4096, AV_ONCE_INIT },
+    { init_ff_cos_tabs_8192, AV_ONCE_INIT },
+    { init_ff_cos_tabs_16384, AV_ONCE_INIT },
+    { init_ff_cos_tabs_32768, AV_ONCE_INIT },
+    { init_ff_cos_tabs_65536, AV_ONCE_INIT },
+    { init_ff_cos_tabs_131072, AV_ONCE_INIT },
+};
+
+#endif
+COSTABLE_CONST FFTSample * const FFT_NAME(ff_cos_tabs)[] = {
+    NULL, NULL, NULL, NULL,
+    FFT_NAME(ff_cos_16),
+    FFT_NAME(ff_cos_32),
+    FFT_NAME(ff_cos_64),
+    FFT_NAME(ff_cos_128),
+    FFT_NAME(ff_cos_256),
+    FFT_NAME(ff_cos_512),
+    FFT_NAME(ff_cos_1024),
+    FFT_NAME(ff_cos_2048),
+    FFT_NAME(ff_cos_4096),
+    FFT_NAME(ff_cos_8192),
+    FFT_NAME(ff_cos_16384),
+    FFT_NAME(ff_cos_32768),
+    FFT_NAME(ff_cos_65536),
+    FFT_NAME(ff_cos_131072),
+};
+
+#endif /* FFT_FIXED_32 */
+
+static void fft_permute_c(FFTContext *s, FFTComplex *z);
+static void fft_calc_c(FFTContext *s, FFTComplex *z);
+
+static int split_radix_permutation(int i, int n, int inverse)
+{
+    int m;
+    if(n <= 2) return i&1;
+    m = n >> 1;
+    if(!(i&m))            return split_radix_permutation(i, m, inverse)*2;
+    m >>= 1;
+    if(inverse == !(i&m)) return split_radix_permutation(i, m, inverse)*4 + 1;
+    else                  return split_radix_permutation(i, m, inverse)*4 - 1;
+}
+
+av_cold void ff_init_ff_cos_tabs(int index)
+{
+#if (!CONFIG_HARDCODED_TABLES) && (!FFT_FIXED_32)
+    ff_thread_once(&cos_tabs_init_once[index].control, cos_tabs_init_once[index].func);
+#endif
+}
+
+static const int avx_tab[] = {
+    0, 4, 1, 5, 8, 12, 9, 13, 2, 6, 3, 7, 10, 14, 11, 15
+};
+
+static int is_second_half_of_fft32(int i, int n)
+{
+    if (n <= 32)
+        return i >= 16;
+    else if (i < n/2)
+        return is_second_half_of_fft32(i, n/2);
+    else if (i < 3*n/4)
+        return is_second_half_of_fft32(i - n/2, n/4);
+    else
+        return is_second_half_of_fft32(i - 3*n/4, n/4);
+}
+
+static av_cold void fft_perm_avx(FFTContext *s)
+{
+    int i;
+    int n = 1 << s->nbits;
+
+    for (i = 0; i < n; i += 16) {
+        int k;
+        if (is_second_half_of_fft32(i, n)) {
+            for (k = 0; k < 16; k++)
+                s->revtab[-split_radix_permutation(i + k, n, s->inverse) & (n - 1)] =
+                    i + avx_tab[k];
+
+        } else {
+            for (k = 0; k < 16; k++) {
+                int j = i + k;
+                j = (j & ~7) | ((j >> 1) & 3) | ((j << 2) & 4);
+                s->revtab[-split_radix_permutation(i + k, n, s->inverse) & (n - 1)] = j;
+            }
+        }
+    }
+}
+
+av_cold int ff_fft_init(FFTContext *s, int nbits, int inverse)
+{
+    int i, j, n;
+
+    s->revtab = NULL;
+    s->revtab32 = NULL;
+
+    if (nbits < 2 || nbits > 17)
+        goto fail;
+    s->nbits = nbits;
+    n = 1 << nbits;
+
+    if (nbits <= 16) {
+        s->revtab = av_malloc(n * sizeof(uint16_t));
+        if (!s->revtab)
+            goto fail;
+    } else {
+        s->revtab32 = av_malloc(n * sizeof(uint32_t));
+        if (!s->revtab32)
+            goto fail;
+    }
+    s->tmp_buf = av_malloc(n * sizeof(FFTComplex));
+    if (!s->tmp_buf)
+        goto fail;
+    s->inverse = inverse;
+    s->fft_permutation = FF_FFT_PERM_DEFAULT;
+
+    s->fft_permute = fft_permute_c;
+    s->fft_calc    = fft_calc_c;
+#if CONFIG_MDCT
+    s->imdct_calc  = ff_imdct_calc_c;
+    s->imdct_half  = ff_imdct_half_c;
+    s->mdct_calc   = ff_mdct_calc_c;
+#endif
+
+#if FFT_FIXED_32
+    {
+        static AVOnce control = AV_ONCE_INIT;
+        ff_thread_once(&control, fft_lut_init);
+    }
+#else /* FFT_FIXED_32 */
+#if FFT_FLOAT
+    if (ARCH_AARCH64) ff_fft_init_aarch64(s);
+    if (ARCH_ARM)     ff_fft_init_arm(s);
+    if (ARCH_PPC)     ff_fft_init_ppc(s);
+    if (ARCH_X86)     ff_fft_init_x86(s);
+    if (CONFIG_MDCT)  s->mdct_calcw = s->mdct_calc;
+    if (HAVE_MIPSFPU) ff_fft_init_mips(s);
+#else
+    if (CONFIG_MDCT)  s->mdct_calcw = ff_mdct_calcw_c;
+    if (ARCH_ARM)     ff_fft_fixed_init_arm(s);
+#endif
+    for(j=4; j<=nbits; j++) {
+        ff_init_ff_cos_tabs(j);
+    }
+#endif /* FFT_FIXED_32 */
+
+
+    if (s->fft_permutation == FF_FFT_PERM_AVX) {
+        fft_perm_avx(s);
+    } else {
+#define PROCESS_FFT_PERM_SWAP_LSBS(num) do {\
+    for(i = 0; i < n; i++) {\
+        int k;\
+        j = i;\
+        j = (j & ~3) | ((j >> 1) & 1) | ((j << 1) & 2);\
+        k = -split_radix_permutation(i, n, s->inverse) & (n - 1);\
+        s->revtab##num[k] = j;\
+    } \
+} while(0);
+
+#define PROCESS_FFT_PERM_DEFAULT(num) do {\
+    for(i = 0; i < n; i++) {\
+        int k;\
+        j = i;\
+        k = -split_radix_permutation(i, n, s->inverse) & (n - 1);\
+        s->revtab##num[k] = j;\
+    } \
+} while(0);
+
+#define SPLIT_RADIX_PERMUTATION(num) do { \
+    if (s->fft_permutation == FF_FFT_PERM_SWAP_LSBS) {\
+        PROCESS_FFT_PERM_SWAP_LSBS(num) \
+    } else {\
+        PROCESS_FFT_PERM_DEFAULT(num) \
+    }\
+} while(0);
+
+    if (s->revtab)
+        SPLIT_RADIX_PERMUTATION()
+    if (s->revtab32)
+        SPLIT_RADIX_PERMUTATION(32)
+
+#undef PROCESS_FFT_PERM_DEFAULT
+#undef PROCESS_FFT_PERM_SWAP_LSBS
+#undef SPLIT_RADIX_PERMUTATION
+    }
+
+    return 0;
+ fail:
+    av_freep(&s->revtab);
+    av_freep(&s->revtab32);
+    av_freep(&s->tmp_buf);
+    return -1;
+}
+
+static void fft_permute_c(FFTContext *s, FFTComplex *z)
+{
+    int j, np;
+    const uint16_t *revtab = s->revtab;
+    const uint32_t *revtab32 = s->revtab32;
+    np = 1 << s->nbits;
+    /* TODO: handle split-radix permute in a more optimal way, probably in-place */
+    if (revtab) {
+        for(j=0;j<np;j++) s->tmp_buf[revtab[j]] = z[j];
+    } else
+        for(j=0;j<np;j++) s->tmp_buf[revtab32[j]] = z[j];
+
+    memcpy(z, s->tmp_buf, np * sizeof(FFTComplex));
+}
+
+av_cold void ff_fft_end(FFTContext *s)
+{
+    av_freep(&s->revtab);
+    av_freep(&s->revtab32);
+    av_freep(&s->tmp_buf);
+}
+
+#if FFT_FIXED_32
+
+static void fft_calc_c(FFTContext *s, FFTComplex *z) {
+
+    int nbits, i, n, num_transforms, offset, step;
+    int n4, n2, n34;
+    unsigned tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8;
+    FFTComplex *tmpz;
+    const int fft_size = (1 << s->nbits);
+    int64_t accu;
+
+    num_transforms = (0x2aab >> (16 - s->nbits)) | 1;
+
+    for (n=0; n<num_transforms; n++){
+        offset = ff_fft_offsets_lut[n] << 2;
+        tmpz = z + offset;
+
+        tmp1 = tmpz[0].re + (unsigned)tmpz[1].re;
+        tmp5 = tmpz[2].re + (unsigned)tmpz[3].re;
+        tmp2 = tmpz[0].im + (unsigned)tmpz[1].im;
+        tmp6 = tmpz[2].im + (unsigned)tmpz[3].im;
+        tmp3 = tmpz[0].re - (unsigned)tmpz[1].re;
+        tmp8 = tmpz[2].im - (unsigned)tmpz[3].im;
+        tmp4 = tmpz[0].im - (unsigned)tmpz[1].im;
+        tmp7 = tmpz[2].re - (unsigned)tmpz[3].re;
+
+        tmpz[0].re = tmp1 + tmp5;
+        tmpz[2].re = tmp1 - tmp5;
+        tmpz[0].im = tmp2 + tmp6;
+        tmpz[2].im = tmp2 - tmp6;
+        tmpz[1].re = tmp3 + tmp8;
+        tmpz[3].re = tmp3 - tmp8;
+        tmpz[1].im = tmp4 - tmp7;
+        tmpz[3].im = tmp4 + tmp7;
+    }
+
+    if (fft_size < 8)
+        return;
+
+    num_transforms = (num_transforms >> 1) | 1;
+
+    for (n=0; n<num_transforms; n++){
+        offset = ff_fft_offsets_lut[n] << 3;
+        tmpz = z + offset;
+
+        tmp1 = tmpz[4].re + (unsigned)tmpz[5].re;
+        tmp3 = tmpz[6].re + (unsigned)tmpz[7].re;
+        tmp2 = tmpz[4].im + (unsigned)tmpz[5].im;
+        tmp4 = tmpz[6].im + (unsigned)tmpz[7].im;
+        tmp5 = tmp1 + tmp3;
+        tmp7 = tmp1 - tmp3;
+        tmp6 = tmp2 + tmp4;
+        tmp8 = tmp2 - tmp4;
+
+        tmp1 = tmpz[4].re - (unsigned)tmpz[5].re;
+        tmp2 = tmpz[4].im - (unsigned)tmpz[5].im;
+        tmp3 = tmpz[6].re - (unsigned)tmpz[7].re;
+        tmp4 = tmpz[6].im - (unsigned)tmpz[7].im;
+
+        tmpz[4].re = tmpz[0].re - tmp5;
+        tmpz[0].re = tmpz[0].re + tmp5;
+        tmpz[4].im = tmpz[0].im - tmp6;
+        tmpz[0].im = tmpz[0].im + tmp6;
+        tmpz[6].re = tmpz[2].re - tmp8;
+        tmpz[2].re = tmpz[2].re + tmp8;
+        tmpz[6].im = tmpz[2].im + tmp7;
+        tmpz[2].im = tmpz[2].im - tmp7;
+
+        accu = (int64_t)Q31(M_SQRT1_2)*(int)(tmp1 + tmp2);
+        tmp5 = (int32_t)((accu + 0x40000000) >> 31);
+        accu = (int64_t)Q31(M_SQRT1_2)*(int)(tmp3 - tmp4);
+        tmp7 = (int32_t)((accu + 0x40000000) >> 31);
+        accu = (int64_t)Q31(M_SQRT1_2)*(int)(tmp2 - tmp1);
+        tmp6 = (int32_t)((accu + 0x40000000) >> 31);
+        accu = (int64_t)Q31(M_SQRT1_2)*(int)(tmp3 + tmp4);
+        tmp8 = (int32_t)((accu + 0x40000000) >> 31);
+        tmp1 = tmp5 + tmp7;
+        tmp3 = tmp5 - tmp7;
+        tmp2 = tmp6 + tmp8;
+        tmp4 = tmp6 - tmp8;
+
+        tmpz[5].re = tmpz[1].re - tmp1;
+        tmpz[1].re = tmpz[1].re + tmp1;
+        tmpz[5].im = tmpz[1].im - tmp2;
+        tmpz[1].im = tmpz[1].im + tmp2;
+        tmpz[7].re = tmpz[3].re - tmp4;
+        tmpz[3].re = tmpz[3].re + tmp4;
+        tmpz[7].im = tmpz[3].im + tmp3;
+        tmpz[3].im = tmpz[3].im - tmp3;
+    }
+
+    step = 1 << ((MAX_LOG2_NFFT-4) - 4);
+    n4 = 4;
+
+    for (nbits=4; nbits<=s->nbits; nbits++){
+        n2  = 2*n4;
+        n34 = 3*n4;
+        num_transforms = (num_transforms >> 1) | 1;
+
+        for (n=0; n<num_transforms; n++){
+            const FFTSample *w_re_ptr = ff_w_tab_sr + step;
+            const FFTSample *w_im_ptr = ff_w_tab_sr + MAX_FFT_SIZE/(4*16) - step;
+            offset = ff_fft_offsets_lut[n] << nbits;
+            tmpz = z + offset;
+
+            tmp5 = tmpz[ n2].re + (unsigned)tmpz[n34].re;
+            tmp1 = tmpz[ n2].re - (unsigned)tmpz[n34].re;
+            tmp6 = tmpz[ n2].im + (unsigned)tmpz[n34].im;
+            tmp2 = tmpz[ n2].im - (unsigned)tmpz[n34].im;
+
+            tmpz[ n2].re = tmpz[ 0].re - tmp5;
+            tmpz[  0].re = tmpz[ 0].re + tmp5;
+            tmpz[ n2].im = tmpz[ 0].im - tmp6;
+            tmpz[  0].im = tmpz[ 0].im + tmp6;
+            tmpz[n34].re = tmpz[n4].re - tmp2;
+            tmpz[ n4].re = tmpz[n4].re + tmp2;
+            tmpz[n34].im = tmpz[n4].im + tmp1;
+            tmpz[ n4].im = tmpz[n4].im - tmp1;
+
+            for (i=1; i<n4; i++){
+                FFTSample w_re = w_re_ptr[0];
+                FFTSample w_im = w_im_ptr[0];
+                accu  = (int64_t)w_re*tmpz[ n2+i].re;
+                accu += (int64_t)w_im*tmpz[ n2+i].im;
+                tmp1 = (int32_t)((accu + 0x40000000) >> 31);
+                accu  = (int64_t)w_re*tmpz[ n2+i].im;
+                accu -= (int64_t)w_im*tmpz[ n2+i].re;
+                tmp2 = (int32_t)((accu + 0x40000000) >> 31);
+                accu  = (int64_t)w_re*tmpz[n34+i].re;
+                accu -= (int64_t)w_im*tmpz[n34+i].im;
+                tmp3 = (int32_t)((accu + 0x40000000) >> 31);
+                accu  = (int64_t)w_re*tmpz[n34+i].im;
+                accu += (int64_t)w_im*tmpz[n34+i].re;
+                tmp4 = (int32_t)((accu + 0x40000000) >> 31);
+
+                tmp5 = tmp1 + tmp3;
+                tmp1 = tmp1 - tmp3;
+                tmp6 = tmp2 + tmp4;
+                tmp2 = tmp2 - tmp4;
+
+                tmpz[ n2+i].re = tmpz[   i].re - tmp5;
+                tmpz[    i].re = tmpz[   i].re + tmp5;
+                tmpz[ n2+i].im = tmpz[   i].im - tmp6;
+                tmpz[    i].im = tmpz[   i].im + tmp6;
+                tmpz[n34+i].re = tmpz[n4+i].re - tmp2;
+                tmpz[ n4+i].re = tmpz[n4+i].re + tmp2;
+                tmpz[n34+i].im = tmpz[n4+i].im + tmp1;
+                tmpz[ n4+i].im = tmpz[n4+i].im - tmp1;
+
+                w_re_ptr += step;
+                w_im_ptr -= step;
+            }
+        }
+        step >>= 1;
+        n4   <<= 1;
+    }
+}
+
+#else /* FFT_FIXED_32 */
+
+#define BUTTERFLIES(a0,a1,a2,a3) {\
+    BF(t3, t5, t5, t1);\
+    BF(a2.re, a0.re, a0.re, t5);\
+    BF(a3.im, a1.im, a1.im, t3);\
+    BF(t4, t6, t2, t6);\
+    BF(a3.re, a1.re, a1.re, t4);\
+    BF(a2.im, a0.im, a0.im, t6);\
+}
+
+// force loading all the inputs before storing any.
+// this is slightly slower for small data, but avoids store->load aliasing
+// for addresses separated by large powers of 2.
+#define BUTTERFLIES_BIG(a0,a1,a2,a3) {\
+    FFTSample r0=a0.re, i0=a0.im, r1=a1.re, i1=a1.im;\
+    BF(t3, t5, t5, t1);\
+    BF(a2.re, a0.re, r0, t5);\
+    BF(a3.im, a1.im, i1, t3);\
+    BF(t4, t6, t2, t6);\
+    BF(a3.re, a1.re, r1, t4);\
+    BF(a2.im, a0.im, i0, t6);\
+}
+
+#define TRANSFORM(a0,a1,a2,a3,wre,wim) {\
+    CMUL(t1, t2, a2.re, a2.im, wre, -wim);\
+    CMUL(t5, t6, a3.re, a3.im, wre,  wim);\
+    BUTTERFLIES(a0,a1,a2,a3)\
+}
+
+#define TRANSFORM_ZERO(a0,a1,a2,a3) {\
+    t1 = a2.re;\
+    t2 = a2.im;\
+    t5 = a3.re;\
+    t6 = a3.im;\
+    BUTTERFLIES(a0,a1,a2,a3)\
+}
+
+/* z[0...8n-1], w[1...2n-1] */
+#define PASS(name)\
+static void name(FFTComplex *z, const FFTSample *wre, unsigned int n)\
+{\
+    FFTDouble t1, t2, t3, t4, t5, t6;\
+    int o1 = 2*n;\
+    int o2 = 4*n;\
+    int o3 = 6*n;\
+    const FFTSample *wim = wre+o1;\
+    n--;\
+\
+    TRANSFORM_ZERO(z[0],z[o1],z[o2],z[o3]);\
+    TRANSFORM(z[1],z[o1+1],z[o2+1],z[o3+1],wre[1],wim[-1]);\
+    do {\
+        z += 2;\
+        wre += 2;\
+        wim -= 2;\
+        TRANSFORM(z[0],z[o1],z[o2],z[o3],wre[0],wim[0]);\
+        TRANSFORM(z[1],z[o1+1],z[o2+1],z[o3+1],wre[1],wim[-1]);\
+    } while(--n);\
+}
+
+PASS(pass)
+#if !CONFIG_SMALL
+#undef BUTTERFLIES
+#define BUTTERFLIES BUTTERFLIES_BIG
+PASS(pass_big)
+#endif
+
+#define DECL_FFT(n,n2,n4)\
+static void fft##n(FFTComplex *z)\
+{\
+    fft##n2(z);\
+    fft##n4(z+n4*2);\
+    fft##n4(z+n4*3);\
+    pass(z,FFT_NAME(ff_cos_##n),n4/2);\
+}
+
+static void fft4(FFTComplex *z)
+{
+    FFTDouble t1, t2, t3, t4, t5, t6, t7, t8;
+
+    BF(t3, t1, z[0].re, z[1].re);
+    BF(t8, t6, z[3].re, z[2].re);
+    BF(z[2].re, z[0].re, t1, t6);
+    BF(t4, t2, z[0].im, z[1].im);
+    BF(t7, t5, z[2].im, z[3].im);
+    BF(z[3].im, z[1].im, t4, t8);
+    BF(z[3].re, z[1].re, t3, t7);
+    BF(z[2].im, z[0].im, t2, t5);
+}
+
+static void fft8(FFTComplex *z)
+{
+    FFTDouble t1, t2, t3, t4, t5, t6;
+
+    fft4(z);
+
+    BF(t1, z[5].re, z[4].re, -z[5].re);
+    BF(t2, z[5].im, z[4].im, -z[5].im);
+    BF(t5, z[7].re, z[6].re, -z[7].re);
+    BF(t6, z[7].im, z[6].im, -z[7].im);
+
+    BUTTERFLIES(z[0],z[2],z[4],z[6]);
+    TRANSFORM(z[1],z[3],z[5],z[7],sqrthalf,sqrthalf);
+}
+
+#if !CONFIG_SMALL
+static void fft16(FFTComplex *z)
+{
+    FFTDouble t1, t2, t3, t4, t5, t6;
+    FFTSample cos_16_1 = FFT_NAME(ff_cos_16)[1];
+    FFTSample cos_16_3 = FFT_NAME(ff_cos_16)[3];
+
+    fft8(z);
+    fft4(z+8);
+    fft4(z+12);
+
+    TRANSFORM_ZERO(z[0],z[4],z[8],z[12]);
+    TRANSFORM(z[2],z[6],z[10],z[14],sqrthalf,sqrthalf);
+    TRANSFORM(z[1],z[5],z[9],z[13],cos_16_1,cos_16_3);
+    TRANSFORM(z[3],z[7],z[11],z[15],cos_16_3,cos_16_1);
+}
+#else
+DECL_FFT(16,8,4)
+#endif
+DECL_FFT(32,16,8)
+DECL_FFT(64,32,16)
+DECL_FFT(128,64,32)
+DECL_FFT(256,128,64)
+DECL_FFT(512,256,128)
+#if !CONFIG_SMALL
+#define pass pass_big
+#endif
+DECL_FFT(1024,512,256)
+DECL_FFT(2048,1024,512)
+DECL_FFT(4096,2048,1024)
+DECL_FFT(8192,4096,2048)
+DECL_FFT(16384,8192,4096)
+DECL_FFT(32768,16384,8192)
+DECL_FFT(65536,32768,16384)
+DECL_FFT(131072,65536,32768)
+
+static void (* const fft_dispatch[])(FFTComplex*) = {
+    fft4, fft8, fft16, fft32, fft64, fft128, fft256, fft512, fft1024,
+    fft2048, fft4096, fft8192, fft16384, fft32768, fft65536, fft131072
+};
+
+static void fft_calc_c(FFTContext *s, FFTComplex *z)
+{
+    fft_dispatch[s->nbits-2](z);
+}
+#endif /* FFT_FIXED_32 */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/frame_thread_encoder.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/frame_thread_encoder.c
new file mode 100644
index 000000000..55756c4c5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/frame_thread_encoder.c
@@ -0,0 +1,327 @@
+/*
+ * Copyright (c) 2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdatomic.h>
+
+#include "frame_thread_encoder.h"
+
+#include "libavutil/fifo.h"
+#include "libavutil/avassert.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/opt.h"
+#include "libavutil/thread.h"
+#include "avcodec.h"
+#include "internal.h"
+#include "thread.h"
+
+#define MAX_THREADS 64
+#define BUFFER_SIZE (2*MAX_THREADS)
+
+typedef struct{
+    void *indata;
+    void *outdata;
+    int64_t return_code;
+    unsigned index;
+} Task;
+
+typedef struct{
+    AVCodecContext *parent_avctx;
+    pthread_mutex_t buffer_mutex;
+
+    AVFifoBuffer *task_fifo;
+    pthread_mutex_t task_fifo_mutex;
+    pthread_cond_t task_fifo_cond;
+
+    Task finished_tasks[BUFFER_SIZE];
+    pthread_mutex_t finished_task_mutex;
+    pthread_cond_t finished_task_cond;
+
+    unsigned task_index;
+    unsigned finished_task_index;
+
+    pthread_t worker[MAX_THREADS];
+    atomic_int exit;
+} ThreadContext;
+
+static void * attribute_align_arg worker(void *v){
+    AVCodecContext *avctx = v;
+    ThreadContext *c = avctx->internal->frame_thread_encoder;
+    AVPacket *pkt = NULL;
+
+    while (!atomic_load(&c->exit)) {
+        int got_packet, ret;
+        AVFrame *frame;
+        Task task;
+
+        if(!pkt) pkt = av_packet_alloc();
+        if(!pkt) continue;
+        av_init_packet(pkt);
+
+        pthread_mutex_lock(&c->task_fifo_mutex);
+        while (av_fifo_size(c->task_fifo) <= 0 || atomic_load(&c->exit)) {
+            if (atomic_load(&c->exit)) {
+                pthread_mutex_unlock(&c->task_fifo_mutex);
+                goto end;
+            }
+            pthread_cond_wait(&c->task_fifo_cond, &c->task_fifo_mutex);
+        }
+        av_fifo_generic_read(c->task_fifo, &task, sizeof(task), NULL);
+        pthread_mutex_unlock(&c->task_fifo_mutex);
+        frame = task.indata;
+
+        ret = avcodec_encode_video2(avctx, pkt, frame, &got_packet);
+        pthread_mutex_lock(&c->buffer_mutex);
+        av_frame_unref(frame);
+        pthread_mutex_unlock(&c->buffer_mutex);
+        av_frame_free(&frame);
+        if(got_packet) {
+            int ret2 = av_packet_make_refcounted(pkt);
+            if (ret >= 0 && ret2 < 0)
+                ret = ret2;
+        } else {
+            pkt->data = NULL;
+            pkt->size = 0;
+        }
+        pthread_mutex_lock(&c->finished_task_mutex);
+        c->finished_tasks[task.index].outdata = pkt; pkt = NULL;
+        c->finished_tasks[task.index].return_code = ret;
+        pthread_cond_signal(&c->finished_task_cond);
+        pthread_mutex_unlock(&c->finished_task_mutex);
+    }
+end:
+    av_free(pkt);
+    pthread_mutex_lock(&c->buffer_mutex);
+    avcodec_close(avctx);
+    pthread_mutex_unlock(&c->buffer_mutex);
+    av_freep(&avctx);
+    return NULL;
+}
+
+int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options){
+    int i=0;
+    ThreadContext *c;
+
+
+    if(   !(avctx->thread_type & FF_THREAD_FRAME)
+       || !(avctx->codec->capabilities & AV_CODEC_CAP_INTRA_ONLY))
+        return 0;
+
+    if(   !avctx->thread_count
+       && avctx->codec_id == AV_CODEC_ID_MJPEG
+       && !(avctx->flags & AV_CODEC_FLAG_QSCALE)) {
+        av_log(avctx, AV_LOG_DEBUG,
+               "Forcing thread count to 1 for MJPEG encoding, use -thread_type slice "
+               "or a constant quantizer if you want to use multiple cpu cores\n");
+        avctx->thread_count = 1;
+    }
+    if(   avctx->thread_count > 1
+       && avctx->codec_id == AV_CODEC_ID_MJPEG
+       && !(avctx->flags & AV_CODEC_FLAG_QSCALE))
+        av_log(avctx, AV_LOG_WARNING,
+               "MJPEG CBR encoding works badly with frame multi-threading, consider "
+               "using -threads 1, -thread_type slice or a constant quantizer.\n");
+
+    if (avctx->codec_id == AV_CODEC_ID_HUFFYUV ||
+        avctx->codec_id == AV_CODEC_ID_FFVHUFF) {
+        int warn = 0;
+        int context_model = 0;
+        AVDictionaryEntry *con = av_dict_get(options, "context", NULL, AV_DICT_MATCH_CASE);
+
+        if (con && con->value)
+            context_model = atoi(con->value);
+
+        if (avctx->flags & AV_CODEC_FLAG_PASS1)
+            warn = 1;
+        else if(context_model > 0) {
+            AVDictionaryEntry *t = av_dict_get(options, "non_deterministic",
+                                               NULL, AV_DICT_MATCH_CASE);
+            warn = !t || !t->value || !atoi(t->value) ? 1 : 0;
+        }
+        // huffyuv does not support these with multiple frame threads currently
+        if (warn) {
+            av_log(avctx, AV_LOG_WARNING,
+               "Forcing thread count to 1 for huffyuv encoding with first pass or context 1\n");
+            avctx->thread_count = 1;
+        }
+    }
+
+    if(!avctx->thread_count) {
+        avctx->thread_count = av_cpu_count();
+        avctx->thread_count = FFMIN(avctx->thread_count, MAX_THREADS);
+    }
+
+    if(avctx->thread_count <= 1)
+        return 0;
+
+    if(avctx->thread_count > MAX_THREADS)
+        return AVERROR(EINVAL);
+
+    av_assert0(!avctx->internal->frame_thread_encoder);
+    c = avctx->internal->frame_thread_encoder = av_mallocz(sizeof(ThreadContext));
+    if(!c)
+        return AVERROR(ENOMEM);
+
+    c->parent_avctx = avctx;
+
+    c->task_fifo = av_fifo_alloc_array(BUFFER_SIZE, sizeof(Task));
+    if(!c->task_fifo)
+        goto fail;
+
+    pthread_mutex_init(&c->task_fifo_mutex, NULL);
+    pthread_mutex_init(&c->finished_task_mutex, NULL);
+    pthread_mutex_init(&c->buffer_mutex, NULL);
+    pthread_cond_init(&c->task_fifo_cond, NULL);
+    pthread_cond_init(&c->finished_task_cond, NULL);
+    atomic_init(&c->exit, 0);
+
+    for(i=0; i<avctx->thread_count ; i++){
+        AVDictionary *tmp = NULL;
+        int ret;
+        void *tmpv;
+        AVCodecContext *thread_avctx = avcodec_alloc_context3(avctx->codec);
+        if(!thread_avctx)
+            goto fail;
+        tmpv = thread_avctx->priv_data;
+        *thread_avctx = *avctx;
+        ret = av_opt_copy(thread_avctx, avctx);
+        if (ret < 0)
+            goto fail;
+        thread_avctx->priv_data = tmpv;
+        thread_avctx->internal = NULL;
+        if (avctx->codec->priv_class) {
+            int ret = av_opt_copy(thread_avctx->priv_data, avctx->priv_data);
+            if (ret < 0)
+                goto fail;
+        } else
+            memcpy(thread_avctx->priv_data, avctx->priv_data, avctx->codec->priv_data_size);
+        thread_avctx->thread_count = 1;
+        thread_avctx->active_thread_type &= ~FF_THREAD_FRAME;
+
+        av_dict_copy(&tmp, options, 0);
+        av_dict_set(&tmp, "threads", "1", 0);
+        if(avcodec_open2(thread_avctx, avctx->codec, &tmp) < 0) {
+            av_dict_free(&tmp);
+            goto fail;
+        }
+        av_dict_free(&tmp);
+        av_assert0(!thread_avctx->internal->frame_thread_encoder);
+        thread_avctx->internal->frame_thread_encoder = c;
+        if(pthread_create(&c->worker[i], NULL, worker, thread_avctx)) {
+            goto fail;
+        }
+    }
+
+    avctx->active_thread_type = FF_THREAD_FRAME;
+
+    return 0;
+fail:
+    avctx->thread_count = i;
+    av_log(avctx, AV_LOG_ERROR, "ff_frame_thread_encoder_init failed\n");
+    ff_frame_thread_encoder_free(avctx);
+    return -1;
+}
+
+void ff_frame_thread_encoder_free(AVCodecContext *avctx){
+    int i;
+    ThreadContext *c= avctx->internal->frame_thread_encoder;
+
+    pthread_mutex_lock(&c->task_fifo_mutex);
+    atomic_store(&c->exit, 1);
+    pthread_cond_broadcast(&c->task_fifo_cond);
+    pthread_mutex_unlock(&c->task_fifo_mutex);
+
+    for (i=0; i<avctx->thread_count; i++) {
+         pthread_join(c->worker[i], NULL);
+    }
+
+    while (av_fifo_size(c->task_fifo) > 0) {
+        Task task;
+        AVFrame *frame;
+        av_fifo_generic_read(c->task_fifo, &task, sizeof(task), NULL);
+        frame = task.indata;
+        av_frame_free(&frame);
+        task.indata = NULL;
+    }
+
+    for (i=0; i<BUFFER_SIZE; i++) {
+        if (c->finished_tasks[i].outdata != NULL) {
+            AVPacket *pkt = c->finished_tasks[i].outdata;
+            av_packet_free(&pkt);
+            c->finished_tasks[i].outdata = NULL;
+        }
+    }
+
+    pthread_mutex_destroy(&c->task_fifo_mutex);
+    pthread_mutex_destroy(&c->finished_task_mutex);
+    pthread_mutex_destroy(&c->buffer_mutex);
+    pthread_cond_destroy(&c->task_fifo_cond);
+    pthread_cond_destroy(&c->finished_task_cond);
+    av_fifo_freep(&c->task_fifo);
+    av_freep(&avctx->internal->frame_thread_encoder);
+}
+
+int ff_thread_video_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet_ptr){
+    ThreadContext *c = avctx->internal->frame_thread_encoder;
+    Task task;
+    int ret;
+
+    av_assert1(!*got_packet_ptr);
+
+    if(frame){
+        AVFrame *new = av_frame_alloc();
+        if(!new)
+            return AVERROR(ENOMEM);
+        ret = av_frame_ref(new, frame);
+        if(ret < 0) {
+            av_frame_free(&new);
+            return ret;
+        }
+
+        task.index = c->task_index;
+        task.indata = (void*)new;
+        pthread_mutex_lock(&c->task_fifo_mutex);
+        av_fifo_generic_write(c->task_fifo, &task, sizeof(task), NULL);
+        pthread_cond_signal(&c->task_fifo_cond);
+        pthread_mutex_unlock(&c->task_fifo_mutex);
+
+        c->task_index = (c->task_index+1) % BUFFER_SIZE;
+    }
+
+    pthread_mutex_lock(&c->finished_task_mutex);
+    if (c->task_index == c->finished_task_index ||
+        (frame && !c->finished_tasks[c->finished_task_index].outdata &&
+         (c->task_index - c->finished_task_index) % BUFFER_SIZE <= avctx->thread_count)) {
+            pthread_mutex_unlock(&c->finished_task_mutex);
+            return 0;
+        }
+
+    while (!c->finished_tasks[c->finished_task_index].outdata) {
+        pthread_cond_wait(&c->finished_task_cond, &c->finished_task_mutex);
+    }
+    task = c->finished_tasks[c->finished_task_index];
+    *pkt = *(AVPacket*)(task.outdata);
+    if(pkt->data)
+        *got_packet_ptr = 1;
+    av_freep(&c->finished_tasks[c->finished_task_index].outdata);
+    c->finished_task_index = (c->finished_task_index+1) % BUFFER_SIZE;
+    pthread_mutex_unlock(&c->finished_task_mutex);
+
+    return task.return_code;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/frame_thread_encoder.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/frame_thread_encoder.h
new file mode 100644
index 000000000..1f79553f2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/frame_thread_encoder.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_FRAME_THREAD_ENCODER_H
+#define AVCODEC_FRAME_THREAD_ENCODER_H
+
+#include "avcodec.h"
+
+int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options);
+void ff_frame_thread_encoder_free(AVCodecContext *avctx);
+int ff_thread_video_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet_ptr);
+
+#endif /* AVCODEC_FRAME_THREAD_ENCODER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/get_bits.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/get_bits.h
new file mode 100644
index 000000000..c4ab60774
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/get_bits.h
@@ -0,0 +1,868 @@
+/*
+ * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2016 Alexandra Hájková
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * bitstream reader API header.
+ */
+
+#ifndef AVCODEC_GET_BITS_H
+#define AVCODEC_GET_BITS_H
+
+#include <stdint.h>
+
+#include "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/log.h"
+#include "libavutil/avassert.h"
+#include "avcodec.h"
+#include "mathops.h"
+#include "vlc.h"
+
+/*
+ * Safe bitstream reading:
+ * optionally, the get_bits API can check to ensure that we
+ * don't read past input buffer boundaries. This is protected
+ * with CONFIG_SAFE_BITSTREAM_READER at the global level, and
+ * then below that with UNCHECKED_BITSTREAM_READER at the per-
+ * decoder level. This means that decoders that check internally
+ * can "#define UNCHECKED_BITSTREAM_READER 1" to disable
+ * overread checks.
+ * Boundary checking causes a minor performance penalty so for
+ * applications that won't want/need this, it can be disabled
+ * globally using "#define CONFIG_SAFE_BITSTREAM_READER 0".
+ */
+#ifndef UNCHECKED_BITSTREAM_READER
+#define UNCHECKED_BITSTREAM_READER !CONFIG_SAFE_BITSTREAM_READER
+#endif
+
+#ifndef CACHED_BITSTREAM_READER
+#define CACHED_BITSTREAM_READER 0
+#endif
+
+typedef struct GetBitContext {
+    const uint8_t *buffer, *buffer_end;
+#if CACHED_BITSTREAM_READER
+    uint64_t cache;
+    unsigned bits_left;
+#endif
+    int index;
+    int size_in_bits;
+    int size_in_bits_plus8;
+} GetBitContext;
+
+static inline unsigned int get_bits(GetBitContext *s, int n);
+static inline void skip_bits(GetBitContext *s, int n);
+static inline unsigned int show_bits(GetBitContext *s, int n);
+
+/* Bitstream reader API docs:
+ * name
+ *   arbitrary name which is used as prefix for the internal variables
+ *
+ * gb
+ *   getbitcontext
+ *
+ * OPEN_READER(name, gb)
+ *   load gb into local variables
+ *
+ * CLOSE_READER(name, gb)
+ *   store local vars in gb
+ *
+ * UPDATE_CACHE(name, gb)
+ *   Refill the internal cache from the bitstream.
+ *   After this call at least MIN_CACHE_BITS will be available.
+ *
+ * GET_CACHE(name, gb)
+ *   Will output the contents of the internal cache,
+ *   next bit is MSB of 32 or 64 bits (FIXME 64 bits).
+ *
+ * SHOW_UBITS(name, gb, num)
+ *   Will return the next num bits.
+ *
+ * SHOW_SBITS(name, gb, num)
+ *   Will return the next num bits and do sign extension.
+ *
+ * SKIP_BITS(name, gb, num)
+ *   Will skip over the next num bits.
+ *   Note, this is equivalent to SKIP_CACHE; SKIP_COUNTER.
+ *
+ * SKIP_CACHE(name, gb, num)
+ *   Will remove the next num bits from the cache (note SKIP_COUNTER
+ *   MUST be called before UPDATE_CACHE / CLOSE_READER).
+ *
+ * SKIP_COUNTER(name, gb, num)
+ *   Will increment the internal bit counter (see SKIP_CACHE & SKIP_BITS).
+ *
+ * LAST_SKIP_BITS(name, gb, num)
+ *   Like SKIP_BITS, to be used if next call is UPDATE_CACHE or CLOSE_READER.
+ *
+ * BITS_LEFT(name, gb)
+ *   Return the number of bits left
+ *
+ * For examples see get_bits, show_bits, skip_bits, get_vlc.
+ */
+
+#if CACHED_BITSTREAM_READER
+#   define MIN_CACHE_BITS 64
+#elif defined LONG_BITSTREAM_READER
+#   define MIN_CACHE_BITS 32
+#else
+#   define MIN_CACHE_BITS 25
+#endif
+
+#if !CACHED_BITSTREAM_READER
+
+#define OPEN_READER_NOSIZE(name, gb)            \
+    unsigned int name ## _index = (gb)->index;  \
+    unsigned int av_unused name ## _cache
+
+#if UNCHECKED_BITSTREAM_READER
+#define OPEN_READER(name, gb) OPEN_READER_NOSIZE(name, gb)
+
+#define BITS_AVAILABLE(name, gb) 1
+#else
+#define OPEN_READER(name, gb)                   \
+    OPEN_READER_NOSIZE(name, gb);               \
+    unsigned int name ## _size_plus8 = (gb)->size_in_bits_plus8
+
+#define BITS_AVAILABLE(name, gb) name ## _index < name ## _size_plus8
+#endif
+
+#define CLOSE_READER(name, gb) (gb)->index = name ## _index
+
+# ifdef LONG_BITSTREAM_READER
+
+# define UPDATE_CACHE_LE(name, gb) name ## _cache = \
+      AV_RL64((gb)->buffer + (name ## _index >> 3)) >> (name ## _index & 7)
+
+# define UPDATE_CACHE_BE(name, gb) name ## _cache = \
+      AV_RB64((gb)->buffer + (name ## _index >> 3)) >> (32 - (name ## _index & 7))
+
+#else
+
+# define UPDATE_CACHE_LE(name, gb) name ## _cache = \
+      AV_RL32((gb)->buffer + (name ## _index >> 3)) >> (name ## _index & 7)
+
+# define UPDATE_CACHE_BE(name, gb) name ## _cache = \
+      AV_RB32((gb)->buffer + (name ## _index >> 3)) << (name ## _index & 7)
+
+#endif
+
+
+#ifdef BITSTREAM_READER_LE
+
+# define UPDATE_CACHE(name, gb) UPDATE_CACHE_LE(name, gb)
+
+# define SKIP_CACHE(name, gb, num) name ## _cache >>= (num)
+
+#else
+
+# define UPDATE_CACHE(name, gb) UPDATE_CACHE_BE(name, gb)
+
+# define SKIP_CACHE(name, gb, num) name ## _cache <<= (num)
+
+#endif
+
+#if UNCHECKED_BITSTREAM_READER
+#   define SKIP_COUNTER(name, gb, num) name ## _index += (num)
+#else
+#   define SKIP_COUNTER(name, gb, num) \
+    name ## _index = FFMIN(name ## _size_plus8, name ## _index + (num))
+#endif
+
+#define BITS_LEFT(name, gb) ((int)((gb)->size_in_bits - name ## _index))
+
+#define SKIP_BITS(name, gb, num)                \
+    do {                                        \
+        SKIP_CACHE(name, gb, num);              \
+        SKIP_COUNTER(name, gb, num);            \
+    } while (0)
+
+#define LAST_SKIP_BITS(name, gb, num) SKIP_COUNTER(name, gb, num)
+
+#define SHOW_UBITS_LE(name, gb, num) zero_extend(name ## _cache, num)
+#define SHOW_SBITS_LE(name, gb, num) sign_extend(name ## _cache, num)
+
+#define SHOW_UBITS_BE(name, gb, num) NEG_USR32(name ## _cache, num)
+#define SHOW_SBITS_BE(name, gb, num) NEG_SSR32(name ## _cache, num)
+
+#ifdef BITSTREAM_READER_LE
+#   define SHOW_UBITS(name, gb, num) SHOW_UBITS_LE(name, gb, num)
+#   define SHOW_SBITS(name, gb, num) SHOW_SBITS_LE(name, gb, num)
+#else
+#   define SHOW_UBITS(name, gb, num) SHOW_UBITS_BE(name, gb, num)
+#   define SHOW_SBITS(name, gb, num) SHOW_SBITS_BE(name, gb, num)
+#endif
+
+#define GET_CACHE(name, gb) ((uint32_t) name ## _cache)
+
+#endif
+
+static inline int get_bits_count(const GetBitContext *s)
+{
+#if CACHED_BITSTREAM_READER
+    return s->index - s->bits_left;
+#else
+    return s->index;
+#endif
+}
+
+#if CACHED_BITSTREAM_READER
+static inline void refill_32(GetBitContext *s, int is_le)
+{
+#if !UNCHECKED_BITSTREAM_READER
+    if (s->index >> 3 >= s->buffer_end - s->buffer)
+        return;
+#endif
+
+    if (is_le)
+    s->cache       = (uint64_t)AV_RL32(s->buffer + (s->index >> 3)) << s->bits_left | s->cache;
+    else
+    s->cache       = s->cache | (uint64_t)AV_RB32(s->buffer + (s->index >> 3)) << (32 - s->bits_left);
+    s->index     += 32;
+    s->bits_left += 32;
+}
+
+static inline void refill_64(GetBitContext *s, int is_le)
+{
+#if !UNCHECKED_BITSTREAM_READER
+    if (s->index >> 3 >= s->buffer_end - s->buffer)
+        return;
+#endif
+
+    if (is_le)
+    s->cache = AV_RL64(s->buffer + (s->index >> 3));
+    else
+    s->cache = AV_RB64(s->buffer + (s->index >> 3));
+    s->index += 64;
+    s->bits_left = 64;
+}
+
+static inline uint64_t get_val(GetBitContext *s, unsigned n, int is_le)
+{
+    uint64_t ret;
+    av_assert2(n>0 && n<=63);
+    if (is_le) {
+        ret = s->cache & ((UINT64_C(1) << n) - 1);
+        s->cache >>= n;
+    } else {
+        ret = s->cache >> (64 - n);
+        s->cache <<= n;
+    }
+    s->bits_left -= n;
+    return ret;
+}
+
+static inline unsigned show_val(const GetBitContext *s, unsigned n)
+{
+#ifdef BITSTREAM_READER_LE
+    return s->cache & ((UINT64_C(1) << n) - 1);
+#else
+    return s->cache >> (64 - n);
+#endif
+}
+#endif
+
+/**
+ * Skips the specified number of bits.
+ * @param n the number of bits to skip,
+ *          For the UNCHECKED_BITSTREAM_READER this must not cause the distance
+ *          from the start to overflow int32_t. Staying within the bitstream + padding
+ *          is sufficient, too.
+ */
+static inline void skip_bits_long(GetBitContext *s, int n)
+{
+#if CACHED_BITSTREAM_READER
+    skip_bits(s, n);
+#else
+#if UNCHECKED_BITSTREAM_READER
+    s->index += n;
+#else
+    s->index += av_clip(n, -s->index, s->size_in_bits_plus8 - s->index);
+#endif
+#endif
+}
+
+#if CACHED_BITSTREAM_READER
+static inline void skip_remaining(GetBitContext *s, unsigned n)
+{
+#ifdef BITSTREAM_READER_LE
+    s->cache >>= n;
+#else
+    s->cache <<= n;
+#endif
+    s->bits_left -= n;
+}
+#endif
+
+/**
+ * Read MPEG-1 dc-style VLC (sign bit + mantissa with no MSB).
+ * if MSB not set it is negative
+ * @param n length in bits
+ */
+static inline int get_xbits(GetBitContext *s, int n)
+{
+#if CACHED_BITSTREAM_READER
+    int32_t cache = show_bits(s, 32);
+    int sign = ~cache >> 31;
+    skip_remaining(s, n);
+
+    return ((((uint32_t)(sign ^ cache)) >> (32 - n)) ^ sign) - sign;
+#else
+    register int sign;
+    register int32_t cache;
+    OPEN_READER(re, s);
+    av_assert2(n>0 && n<=25);
+    UPDATE_CACHE(re, s);
+    cache = GET_CACHE(re, s);
+    sign  = ~cache >> 31;
+    LAST_SKIP_BITS(re, s, n);
+    CLOSE_READER(re, s);
+    return (NEG_USR32(sign ^ cache, n) ^ sign) - sign;
+#endif
+}
+
+#if !CACHED_BITSTREAM_READER
+static inline int get_xbits_le(GetBitContext *s, int n)
+{
+    register int sign;
+    register int32_t cache;
+    OPEN_READER(re, s);
+    av_assert2(n>0 && n<=25);
+    UPDATE_CACHE_LE(re, s);
+    cache = GET_CACHE(re, s);
+    sign  = sign_extend(~cache, n) >> 31;
+    LAST_SKIP_BITS(re, s, n);
+    CLOSE_READER(re, s);
+    return (zero_extend(sign ^ cache, n) ^ sign) - sign;
+}
+#endif
+
+static inline int get_sbits(GetBitContext *s, int n)
+{
+    register int tmp;
+#if CACHED_BITSTREAM_READER
+    av_assert2(n>0 && n<=25);
+    tmp = sign_extend(get_bits(s, n), n);
+#else
+    OPEN_READER(re, s);
+    av_assert2(n>0 && n<=25);
+    UPDATE_CACHE(re, s);
+    tmp = SHOW_SBITS(re, s, n);
+    LAST_SKIP_BITS(re, s, n);
+    CLOSE_READER(re, s);
+#endif
+    return tmp;
+}
+
+/**
+ * Read 1-25 bits.
+ */
+static inline unsigned int get_bits(GetBitContext *s, int n)
+{
+    register unsigned int tmp;
+#if CACHED_BITSTREAM_READER
+
+    av_assert2(n>0 && n<=32);
+    if (n > s->bits_left) {
+#ifdef BITSTREAM_READER_LE
+        refill_32(s, 1);
+#else
+        refill_32(s, 0);
+#endif
+        if (s->bits_left < 32)
+            s->bits_left = n;
+    }
+
+#ifdef BITSTREAM_READER_LE
+    tmp = get_val(s, n, 1);
+#else
+    tmp = get_val(s, n, 0);
+#endif
+#else
+    OPEN_READER(re, s);
+    av_assert2(n>0 && n<=25);
+    UPDATE_CACHE(re, s);
+    tmp = SHOW_UBITS(re, s, n);
+    LAST_SKIP_BITS(re, s, n);
+    CLOSE_READER(re, s);
+#endif
+    av_assert2(tmp < UINT64_C(1) << n);
+    return tmp;
+}
+
+/**
+ * Read 0-25 bits.
+ */
+static av_always_inline int get_bitsz(GetBitContext *s, int n)
+{
+    return n ? get_bits(s, n) : 0;
+}
+
+static inline unsigned int get_bits_le(GetBitContext *s, int n)
+{
+#if CACHED_BITSTREAM_READER
+    av_assert2(n>0 && n<=32);
+    if (n > s->bits_left) {
+        refill_32(s, 1);
+        if (s->bits_left < 32)
+            s->bits_left = n;
+    }
+
+    return get_val(s, n, 1);
+#else
+    register int tmp;
+    OPEN_READER(re, s);
+    av_assert2(n>0 && n<=25);
+    UPDATE_CACHE_LE(re, s);
+    tmp = SHOW_UBITS_LE(re, s, n);
+    LAST_SKIP_BITS(re, s, n);
+    CLOSE_READER(re, s);
+    return tmp;
+#endif
+}
+
+/**
+ * Show 1-25 bits.
+ */
+static inline unsigned int show_bits(GetBitContext *s, int n)
+{
+    register unsigned int tmp;
+#if CACHED_BITSTREAM_READER
+    if (n > s->bits_left)
+#ifdef BITSTREAM_READER_LE
+        refill_32(s, 1);
+#else
+        refill_32(s, 0);
+#endif
+
+    tmp = show_val(s, n);
+#else
+    OPEN_READER_NOSIZE(re, s);
+    av_assert2(n>0 && n<=25);
+    UPDATE_CACHE(re, s);
+    tmp = SHOW_UBITS(re, s, n);
+#endif
+    return tmp;
+}
+
+static inline void skip_bits(GetBitContext *s, int n)
+{
+#if CACHED_BITSTREAM_READER
+    if (n < s->bits_left)
+        skip_remaining(s, n);
+    else {
+        n -= s->bits_left;
+        s->cache = 0;
+        s->bits_left = 0;
+
+        if (n >= 64) {
+            unsigned skip = (n / 8) * 8;
+
+            n -= skip;
+            s->index += skip;
+        }
+#ifdef BITSTREAM_READER_LE
+        refill_64(s, 1);
+#else
+        refill_64(s, 0);
+#endif
+        if (n)
+            skip_remaining(s, n);
+    }
+#else
+    OPEN_READER(re, s);
+    LAST_SKIP_BITS(re, s, n);
+    CLOSE_READER(re, s);
+#endif
+}
+
+static inline unsigned int get_bits1(GetBitContext *s)
+{
+#if CACHED_BITSTREAM_READER
+    if (!s->bits_left)
+#ifdef BITSTREAM_READER_LE
+        refill_64(s, 1);
+#else
+        refill_64(s, 0);
+#endif
+
+#ifdef BITSTREAM_READER_LE
+    return get_val(s, 1, 1);
+#else
+    return get_val(s, 1, 0);
+#endif
+#else
+    unsigned int index = s->index;
+    uint8_t result     = s->buffer[index >> 3];
+#ifdef BITSTREAM_READER_LE
+    result >>= index & 7;
+    result  &= 1;
+#else
+    result <<= index & 7;
+    result >>= 8 - 1;
+#endif
+#if !UNCHECKED_BITSTREAM_READER
+    if (s->index < s->size_in_bits_plus8)
+#endif
+        index++;
+    s->index = index;
+
+    return result;
+#endif
+}
+
+static inline unsigned int show_bits1(GetBitContext *s)
+{
+    return show_bits(s, 1);
+}
+
+static inline void skip_bits1(GetBitContext *s)
+{
+    skip_bits(s, 1);
+}
+
+/**
+ * Read 0-32 bits.
+ */
+static inline unsigned int get_bits_long(GetBitContext *s, int n)
+{
+    av_assert2(n>=0 && n<=32);
+    if (!n) {
+        return 0;
+#if CACHED_BITSTREAM_READER
+    }
+    return get_bits(s, n);
+#else
+    } else if (n <= MIN_CACHE_BITS) {
+        return get_bits(s, n);
+    } else {
+#ifdef BITSTREAM_READER_LE
+        unsigned ret = get_bits(s, 16);
+        return ret | (get_bits(s, n - 16) << 16);
+#else
+        unsigned ret = get_bits(s, 16) << (n - 16);
+        return ret | get_bits(s, n - 16);
+#endif
+    }
+#endif
+}
+
+/**
+ * Read 0-64 bits.
+ */
+static inline uint64_t get_bits64(GetBitContext *s, int n)
+{
+    if (n <= 32) {
+        return get_bits_long(s, n);
+    } else {
+#ifdef BITSTREAM_READER_LE
+        uint64_t ret = get_bits_long(s, 32);
+        return ret | (uint64_t) get_bits_long(s, n - 32) << 32;
+#else
+        uint64_t ret = (uint64_t) get_bits_long(s, n - 32) << 32;
+        return ret | get_bits_long(s, 32);
+#endif
+    }
+}
+
+/**
+ * Read 0-32 bits as a signed integer.
+ */
+static inline int get_sbits_long(GetBitContext *s, int n)
+{
+    // sign_extend(x, 0) is undefined
+    if (!n)
+        return 0;
+
+    return sign_extend(get_bits_long(s, n), n);
+}
+
+/**
+ * Show 0-32 bits.
+ */
+static inline unsigned int show_bits_long(GetBitContext *s, int n)
+{
+    if (n <= MIN_CACHE_BITS) {
+        return show_bits(s, n);
+    } else {
+        GetBitContext gb = *s;
+        return get_bits_long(&gb, n);
+    }
+}
+
+static inline int check_marker(void *logctx, GetBitContext *s, const char *msg)
+{
+    int bit = get_bits1(s);
+    if (!bit)
+        av_log(logctx, AV_LOG_INFO, "Marker bit missing at %d of %d %s\n",
+               get_bits_count(s) - 1, s->size_in_bits, msg);
+
+    return bit;
+}
+
+static inline int init_get_bits_xe(GetBitContext *s, const uint8_t *buffer,
+                                   int bit_size, int is_le)
+{
+    int buffer_size;
+    int ret = 0;
+
+    if (bit_size >= INT_MAX - FFMAX(7, AV_INPUT_BUFFER_PADDING_SIZE*8) || bit_size < 0 || !buffer) {
+        bit_size    = 0;
+        buffer      = NULL;
+        ret         = AVERROR_INVALIDDATA;
+    }
+
+    buffer_size = (bit_size + 7) >> 3;
+
+    s->buffer             = buffer;
+    s->size_in_bits       = bit_size;
+    s->size_in_bits_plus8 = bit_size + 8;
+    s->buffer_end         = buffer + buffer_size;
+    s->index              = 0;
+
+#if CACHED_BITSTREAM_READER
+    s->cache              = 0;
+    s->bits_left          = 0;
+    refill_64(s, is_le);
+#endif
+
+    return ret;
+}
+
+/**
+ * Initialize GetBitContext.
+ * @param buffer bitstream buffer, must be AV_INPUT_BUFFER_PADDING_SIZE bytes
+ *        larger than the actual read bits because some optimized bitstream
+ *        readers read 32 or 64 bit at once and could read over the end
+ * @param bit_size the size of the buffer in bits
+ * @return 0 on success, AVERROR_INVALIDDATA if the buffer_size would overflow.
+ */
+static inline int init_get_bits(GetBitContext *s, const uint8_t *buffer,
+                                int bit_size)
+{
+#ifdef BITSTREAM_READER_LE
+    return init_get_bits_xe(s, buffer, bit_size, 1);
+#else
+    return init_get_bits_xe(s, buffer, bit_size, 0);
+#endif
+}
+
+/**
+ * Initialize GetBitContext.
+ * @param buffer bitstream buffer, must be AV_INPUT_BUFFER_PADDING_SIZE bytes
+ *        larger than the actual read bits because some optimized bitstream
+ *        readers read 32 or 64 bit at once and could read over the end
+ * @param byte_size the size of the buffer in bytes
+ * @return 0 on success, AVERROR_INVALIDDATA if the buffer_size would overflow.
+ */
+static inline int init_get_bits8(GetBitContext *s, const uint8_t *buffer,
+                                 int byte_size)
+{
+    if (byte_size > INT_MAX / 8 || byte_size < 0)
+        byte_size = -1;
+    return init_get_bits(s, buffer, byte_size * 8);
+}
+
+static inline int init_get_bits8_le(GetBitContext *s, const uint8_t *buffer,
+                                    int byte_size)
+{
+    if (byte_size > INT_MAX / 8 || byte_size < 0)
+        byte_size = -1;
+    return init_get_bits_xe(s, buffer, byte_size * 8, 1);
+}
+
+static inline const uint8_t *align_get_bits(GetBitContext *s)
+{
+    int n = -get_bits_count(s) & 7;
+    if (n)
+        skip_bits(s, n);
+    return s->buffer + (s->index >> 3);
+}
+
+/**
+ * If the vlc code is invalid and max_depth=1, then no bits will be removed.
+ * If the vlc code is invalid and max_depth>1, then the number of bits removed
+ * is undefined.
+ */
+#define GET_VLC(code, name, gb, table, bits, max_depth)         \
+    do {                                                        \
+        int n, nb_bits;                                         \
+        unsigned int index;                                     \
+                                                                \
+        index = SHOW_UBITS(name, gb, bits);                     \
+        code  = table[index][0];                                \
+        n     = table[index][1];                                \
+                                                                \
+        if (max_depth > 1 && n < 0) {                           \
+            LAST_SKIP_BITS(name, gb, bits);                     \
+            UPDATE_CACHE(name, gb);                             \
+                                                                \
+            nb_bits = -n;                                       \
+                                                                \
+            index = SHOW_UBITS(name, gb, nb_bits) + code;       \
+            code  = table[index][0];                            \
+            n     = table[index][1];                            \
+            if (max_depth > 2 && n < 0) {                       \
+                LAST_SKIP_BITS(name, gb, nb_bits);              \
+                UPDATE_CACHE(name, gb);                         \
+                                                                \
+                nb_bits = -n;                                   \
+                                                                \
+                index = SHOW_UBITS(name, gb, nb_bits) + code;   \
+                code  = table[index][0];                        \
+                n     = table[index][1];                        \
+            }                                                   \
+        }                                                       \
+        SKIP_BITS(name, gb, n);                                 \
+    } while (0)
+
+#define GET_RL_VLC(level, run, name, gb, table, bits,  \
+                   max_depth, need_update)                      \
+    do {                                                        \
+        int n, nb_bits;                                         \
+        unsigned int index;                                     \
+                                                                \
+        index = SHOW_UBITS(name, gb, bits);                     \
+        level = table[index].level;                             \
+        n     = table[index].len;                               \
+                                                                \
+        if (max_depth > 1 && n < 0) {                           \
+            SKIP_BITS(name, gb, bits);                          \
+            if (need_update) {                                  \
+                UPDATE_CACHE(name, gb);                         \
+            }                                                   \
+                                                                \
+            nb_bits = -n;                                       \
+                                                                \
+            index = SHOW_UBITS(name, gb, nb_bits) + level;      \
+            level = table[index].level;                         \
+            n     = table[index].len;                           \
+            if (max_depth > 2 && n < 0) {                       \
+                LAST_SKIP_BITS(name, gb, nb_bits);              \
+                if (need_update) {                              \
+                    UPDATE_CACHE(name, gb);                     \
+                }                                               \
+                nb_bits = -n;                                   \
+                                                                \
+                index = SHOW_UBITS(name, gb, nb_bits) + level;  \
+                level = table[index].level;                     \
+                n     = table[index].len;                       \
+            }                                                   \
+        }                                                       \
+        run = table[index].run;                                 \
+        SKIP_BITS(name, gb, n);                                 \
+    } while (0)
+
+/* Return the LUT element for the given bitstream configuration. */
+static inline int set_idx(GetBitContext *s, int code, int *n, int *nb_bits,
+                          VLC_TYPE (*table)[2])
+{
+    unsigned idx;
+
+    *nb_bits = -*n;
+    idx = show_bits(s, *nb_bits) + code;
+    *n = table[idx][1];
+
+    return table[idx][0];
+}
+
+/**
+ * Parse a vlc code.
+ * @param bits is the number of bits which will be read at once, must be
+ *             identical to nb_bits in init_vlc()
+ * @param max_depth is the number of times bits bits must be read to completely
+ *                  read the longest vlc code
+ *                  = (max_vlc_length + bits - 1) / bits
+ * @returns the code parsed or -1 if no vlc matches
+ */
+static av_always_inline int get_vlc2(GetBitContext *s, VLC_TYPE (*table)[2],
+                                     int bits, int max_depth)
+{
+#if CACHED_BITSTREAM_READER
+    int nb_bits;
+    unsigned idx = show_bits(s, bits);
+    int code = table[idx][0];
+    int n    = table[idx][1];
+
+    if (max_depth > 1 && n < 0) {
+        skip_remaining(s, bits);
+        code = set_idx(s, code, &n, &nb_bits, table);
+        if (max_depth > 2 && n < 0) {
+            skip_remaining(s, nb_bits);
+            code = set_idx(s, code, &n, &nb_bits, table);
+        }
+    }
+    skip_remaining(s, n);
+
+    return code;
+#else
+    int code;
+
+    OPEN_READER(re, s);
+    UPDATE_CACHE(re, s);
+
+    GET_VLC(code, re, s, table, bits, max_depth);
+
+    CLOSE_READER(re, s);
+
+    return code;
+#endif
+}
+
+static inline int decode012(GetBitContext *gb)
+{
+    int n;
+    n = get_bits1(gb);
+    if (n == 0)
+        return 0;
+    else
+        return get_bits1(gb) + 1;
+}
+
+static inline int decode210(GetBitContext *gb)
+{
+    if (get_bits1(gb))
+        return 0;
+    else
+        return 2 - get_bits1(gb);
+}
+
+static inline int get_bits_left(GetBitContext *gb)
+{
+    return gb->size_in_bits - get_bits_count(gb);
+}
+
+static inline int skip_1stop_8data_bits(GetBitContext *gb)
+{
+    if (get_bits_left(gb) <= 0)
+        return AVERROR_INVALIDDATA;
+
+    while (get_bits1(gb)) {
+        skip_bits(gb, 8);
+        if (get_bits_left(gb) <= 0)
+            return AVERROR_INVALIDDATA;
+    }
+
+    return 0;
+}
+
+#endif /* AVCODEC_GET_BITS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/golomb.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/golomb.c
new file mode 100644
index 000000000..937ac22ce
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/golomb.c
@@ -0,0 +1,173 @@
+/*
+ * exp golomb vlc stuff
+ * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @brief
+ *     exp golomb vlc stuff
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "libavutil/common.h"
+
+const uint8_t ff_golomb_vlc_len[512]={
+19,17,15,15,13,13,13,13,11,11,11,11,11,11,11,11,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
+7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
+};
+
+const uint8_t ff_ue_golomb_vlc_code[512]={
+32,32,32,32,32,32,32,32,31,32,32,32,32,32,32,32,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,
+ 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9,10,10,10,10,11,11,11,11,12,12,12,12,13,13,13,13,14,14,14,14,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+const int8_t ff_se_golomb_vlc_code[512]={
+ 17, 17, 17, 17, 17, 17, 17, 17, 16, 17, 17, 17, 17, 17, 17, 17,  8, -8,  9, -9, 10,-10, 11,-11, 12,-12, 13,-13, 14,-14, 15,-15,
+  4,  4,  4,  4, -4, -4, -4, -4,  5,  5,  5,  5, -5, -5, -5, -5,  6,  6,  6,  6, -6, -6, -6, -6,  7,  7,  7,  7, -7, -7, -7, -7,
+  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
+  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3,
+  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+};
+
+
+const uint8_t ff_ue_golomb_len[256]={
+ 1, 3, 3, 5, 5, 5, 5, 7, 7, 7, 7, 7, 7, 7, 7, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,11,
+11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,13,
+13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,
+13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,15,
+15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,
+15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,
+15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,
+15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,17,
+};
+
+const uint8_t ff_interleaved_golomb_vlc_len[256]={
+9,9,7,7,9,9,7,7,5,5,5,5,5,5,5,5,
+9,9,7,7,9,9,7,7,5,5,5,5,5,5,5,5,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
+9,9,7,7,9,9,7,7,5,5,5,5,5,5,5,5,
+9,9,7,7,9,9,7,7,5,5,5,5,5,5,5,5,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+};
+
+const uint8_t ff_interleaved_ue_golomb_vlc_code[256]={
+ 15,16,7, 7, 17,18,8, 8, 3, 3, 3, 3, 3, 3, 3, 3,
+ 19,20,9, 9, 21,22,10,10,4, 4, 4, 4, 4, 4, 4, 4,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 23,24,11,11,25,26,12,12,5, 5, 5, 5, 5, 5, 5, 5,
+ 27,28,13,13,29,30,14,14,6, 6, 6, 6, 6, 6, 6, 6,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+};
+
+const int8_t ff_interleaved_se_golomb_vlc_code[256]={
+  8, -8,  4,  4,  9, -9, -4, -4,  2,  2,  2,  2,  2,  2,  2,  2,
+ 10,-10,  5,  5, 11,-11, -5, -5, -2, -2, -2, -2, -2, -2, -2, -2,
+  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+ 12,-12,  6,  6, 13,-13, -6, -6,  3,  3,  3,  3,  3,  3,  3,  3,
+ 14,-14,  7,  7, 15,-15, -7, -7, -3, -3, -3, -3, -3, -3, -3, -3,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+};
+
+const uint8_t ff_interleaved_dirac_golomb_vlc_code[256]={
+0, 1, 0, 0, 2, 3, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
+4, 5, 2, 2, 6, 7, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+8, 9, 4, 4, 10,11,5, 5, 2, 2, 2, 2, 2, 2, 2, 2,
+12,13,6, 6, 14,15,7, 7, 3, 3, 3, 3, 3, 3, 3, 3,
+1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/golomb.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/golomb.h
new file mode 100644
index 000000000..5cdfa0945
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/golomb.h
@@ -0,0 +1,747 @@
+/*
+ * exp golomb vlc stuff
+ * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2004 Alex Beregszaszi
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @brief
+ *     exp golomb vlc stuff
+ * @author Michael Niedermayer <michaelni@gmx.at> and Alex Beregszaszi
+ */
+
+#ifndef AVCODEC_GOLOMB_H
+#define AVCODEC_GOLOMB_H
+
+#include <stdint.h>
+
+#include "get_bits.h"
+#include "put_bits.h"
+
+#define INVALID_VLC           0x80000000
+
+extern const uint8_t ff_golomb_vlc_len[512];
+extern const uint8_t ff_ue_golomb_vlc_code[512];
+extern const  int8_t ff_se_golomb_vlc_code[512];
+extern const uint8_t ff_ue_golomb_len[256];
+
+extern const uint8_t ff_interleaved_golomb_vlc_len[256];
+extern const uint8_t ff_interleaved_ue_golomb_vlc_code[256];
+extern const  int8_t ff_interleaved_se_golomb_vlc_code[256];
+extern const uint8_t ff_interleaved_dirac_golomb_vlc_code[256];
+
+/**
+ * Read an unsigned Exp-Golomb code in the range 0 to 8190.
+ *
+ * @returns the read value or a negative error code.
+ */
+static inline int get_ue_golomb(GetBitContext *gb)
+{
+    unsigned int buf;
+
+#if CACHED_BITSTREAM_READER
+    buf = show_bits_long(gb, 32);
+
+    if (buf >= (1 << 27)) {
+        buf >>= 32 - 9;
+        skip_bits_long(gb, ff_golomb_vlc_len[buf]);
+
+        return ff_ue_golomb_vlc_code[buf];
+    } else {
+        int log = 2 * av_log2(buf) - 31;
+        buf >>= log;
+        buf--;
+        skip_bits_long(gb, 32 - log);
+
+        return buf;
+    }
+#else
+    OPEN_READER(re, gb);
+    UPDATE_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
+
+    if (buf >= (1 << 27)) {
+        buf >>= 32 - 9;
+        LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
+        CLOSE_READER(re, gb);
+
+        return ff_ue_golomb_vlc_code[buf];
+    } else {
+        int log = 2 * av_log2(buf) - 31;
+        LAST_SKIP_BITS(re, gb, 32 - log);
+        CLOSE_READER(re, gb);
+        if (log < 7) {
+            av_log(NULL, AV_LOG_ERROR, "Invalid UE golomb code\n");
+            return AVERROR_INVALIDDATA;
+        }
+        buf >>= log;
+        buf--;
+
+        return buf;
+    }
+#endif
+}
+
+/**
+ * Read an unsigned Exp-Golomb code in the range 0 to UINT32_MAX-1.
+ */
+static inline unsigned get_ue_golomb_long(GetBitContext *gb)
+{
+    unsigned buf, log;
+
+    buf = show_bits_long(gb, 32);
+    log = 31 - av_log2(buf);
+    skip_bits_long(gb, log);
+
+    return get_bits_long(gb, log + 1) - 1;
+}
+
+/**
+ * read unsigned exp golomb code, constraint to a max of 31.
+ * the return value is undefined if the stored value exceeds 31.
+ */
+static inline int get_ue_golomb_31(GetBitContext *gb)
+{
+    unsigned int buf;
+
+#if CACHED_BITSTREAM_READER
+    buf = show_bits_long(gb, 32);
+
+    buf >>= 32 - 9;
+    skip_bits_long(gb, ff_golomb_vlc_len[buf]);
+#else
+
+    OPEN_READER(re, gb);
+    UPDATE_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
+
+    buf >>= 32 - 9;
+    LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
+    CLOSE_READER(re, gb);
+#endif
+
+    return ff_ue_golomb_vlc_code[buf];
+}
+
+static inline unsigned get_interleaved_ue_golomb(GetBitContext *gb)
+{
+    uint32_t buf;
+
+#if CACHED_BITSTREAM_READER
+    buf = show_bits_long(gb, 32);
+
+    if (buf & 0xAA800000) {
+        buf >>= 32 - 8;
+        skip_bits_long(gb, ff_interleaved_golomb_vlc_len[buf]);
+
+        return ff_interleaved_ue_golomb_vlc_code[buf];
+    } else {
+        unsigned ret = 1;
+
+        do {
+            buf >>= 32 - 8;
+            skip_bits_long(gb, FFMIN(ff_interleaved_golomb_vlc_len[buf], 8));
+
+            if (ff_interleaved_golomb_vlc_len[buf] != 9) {
+                ret <<= (ff_interleaved_golomb_vlc_len[buf] - 1) >> 1;
+                ret  |= ff_interleaved_dirac_golomb_vlc_code[buf];
+                break;
+            }
+            ret = (ret << 4) | ff_interleaved_dirac_golomb_vlc_code[buf];
+            buf = show_bits_long(gb, 32);
+        } while (get_bits_left(gb) > 0);
+
+        return ret - 1;
+    }
+#else
+    OPEN_READER(re, gb);
+    UPDATE_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
+
+    if (buf & 0xAA800000) {
+        buf >>= 32 - 8;
+        LAST_SKIP_BITS(re, gb, ff_interleaved_golomb_vlc_len[buf]);
+        CLOSE_READER(re, gb);
+
+        return ff_interleaved_ue_golomb_vlc_code[buf];
+    } else {
+        unsigned ret = 1;
+
+        do {
+            buf >>= 32 - 8;
+            LAST_SKIP_BITS(re, gb,
+                           FFMIN(ff_interleaved_golomb_vlc_len[buf], 8));
+
+            if (ff_interleaved_golomb_vlc_len[buf] != 9) {
+                ret <<= (ff_interleaved_golomb_vlc_len[buf] - 1) >> 1;
+                ret  |= ff_interleaved_dirac_golomb_vlc_code[buf];
+                break;
+            }
+            ret = (ret << 4) | ff_interleaved_dirac_golomb_vlc_code[buf];
+            UPDATE_CACHE(re, gb);
+            buf = GET_CACHE(re, gb);
+        } while (ret<0x8000000U && BITS_AVAILABLE(re, gb));
+
+        CLOSE_READER(re, gb);
+        return ret - 1;
+    }
+#endif
+}
+
+/**
+ * read unsigned truncated exp golomb code.
+ */
+static inline int get_te0_golomb(GetBitContext *gb, int range)
+{
+    av_assert2(range >= 1);
+
+    if (range == 1)
+        return 0;
+    else if (range == 2)
+        return get_bits1(gb) ^ 1;
+    else
+        return get_ue_golomb(gb);
+}
+
+/**
+ * read unsigned truncated exp golomb code.
+ */
+static inline int get_te_golomb(GetBitContext *gb, int range)
+{
+    av_assert2(range >= 1);
+
+    if (range == 2)
+        return get_bits1(gb) ^ 1;
+    else
+        return get_ue_golomb(gb);
+}
+
+/**
+ * read signed exp golomb code.
+ */
+static inline int get_se_golomb(GetBitContext *gb)
+{
+    unsigned int buf;
+
+#if CACHED_BITSTREAM_READER
+    buf = show_bits_long(gb, 32);
+
+    if (buf >= (1 << 27)) {
+        buf >>= 32 - 9;
+        skip_bits_long(gb, ff_golomb_vlc_len[buf]);
+
+        return ff_se_golomb_vlc_code[buf];
+    } else {
+        int log = 2 * av_log2(buf) - 31;
+        buf >>= log;
+
+        skip_bits_long(gb, 32 - log);
+
+        if (buf & 1)
+            buf = -(buf >> 1);
+        else
+            buf = (buf >> 1);
+
+        return buf;
+    }
+#else
+    OPEN_READER(re, gb);
+    UPDATE_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
+
+    if (buf >= (1 << 27)) {
+        buf >>= 32 - 9;
+        LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
+        CLOSE_READER(re, gb);
+
+        return ff_se_golomb_vlc_code[buf];
+    } else {
+        int log = av_log2(buf), sign;
+        LAST_SKIP_BITS(re, gb, 31 - log);
+        UPDATE_CACHE(re, gb);
+        buf = GET_CACHE(re, gb);
+
+        buf >>= log;
+
+        LAST_SKIP_BITS(re, gb, 32 - log);
+        CLOSE_READER(re, gb);
+
+        sign = -(buf & 1);
+        buf  = ((buf >> 1) ^ sign) - sign;
+
+        return buf;
+    }
+#endif
+}
+
+static inline int get_se_golomb_long(GetBitContext *gb)
+{
+    unsigned int buf = get_ue_golomb_long(gb);
+    int sign = (buf & 1) - 1;
+    return ((buf >> 1) ^ sign) + 1;
+}
+
+static inline int get_interleaved_se_golomb(GetBitContext *gb)
+{
+    unsigned int buf;
+
+#if CACHED_BITSTREAM_READER
+    buf = show_bits_long(gb, 32);
+
+    if (buf & 0xAA800000) {
+        buf >>= 32 - 8;
+        skip_bits_long(gb, ff_interleaved_golomb_vlc_len[buf]);
+
+        return ff_interleaved_se_golomb_vlc_code[buf];
+    } else {
+        int log;
+        skip_bits(gb, 8);
+        buf |= 1 | show_bits_long(gb, 24);
+
+        if ((buf & 0xAAAAAAAA) == 0)
+            return INVALID_VLC;
+
+        for (log = 31; (buf & 0x80000000) == 0; log--)
+            buf = (buf << 2) - ((buf << log) >> (log - 1)) + (buf >> 30);
+
+        skip_bits_long(gb, 63 - 2 * log - 8);
+
+        return (signed) (((((buf << log) >> log) - 1) ^ -(buf & 0x1)) + 1) >> 1;
+    }
+#else
+    OPEN_READER(re, gb);
+    UPDATE_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
+
+    if (buf & 0xAA800000) {
+        buf >>= 32 - 8;
+        LAST_SKIP_BITS(re, gb, ff_interleaved_golomb_vlc_len[buf]);
+        CLOSE_READER(re, gb);
+
+        return ff_interleaved_se_golomb_vlc_code[buf];
+    } else {
+        int log;
+        LAST_SKIP_BITS(re, gb, 8);
+        UPDATE_CACHE(re, gb);
+        buf |= 1 | (GET_CACHE(re, gb) >> 8);
+
+        if ((buf & 0xAAAAAAAA) == 0)
+            return INVALID_VLC;
+
+        for (log = 31; (buf & 0x80000000) == 0; log--)
+            buf = (buf << 2) - ((buf << log) >> (log - 1)) + (buf >> 30);
+
+        LAST_SKIP_BITS(re, gb, 63 - 2 * log - 8);
+        CLOSE_READER(re, gb);
+
+        return (signed) (((((buf << log) >> log) - 1) ^ -(buf & 0x1)) + 1) >> 1;
+    }
+#endif
+}
+
+static inline int dirac_get_se_golomb(GetBitContext *gb)
+{
+    uint32_t ret = get_interleaved_ue_golomb(gb);
+
+    if (ret) {
+        int sign = -get_bits1(gb);
+        ret = (ret ^ sign) - sign;
+    }
+
+    return ret;
+}
+
+/**
+ * read unsigned golomb rice code (ffv1).
+ */
+static inline int get_ur_golomb(GetBitContext *gb, int k, int limit,
+                                int esc_len)
+{
+    unsigned int buf;
+    int log;
+
+#if CACHED_BITSTREAM_READER
+    buf = show_bits_long(gb, 32);
+
+    log = av_log2(buf);
+
+    if (log > 31 - limit) {
+        buf >>= log - k;
+        buf  += (30 - log) << k;
+        skip_bits_long(gb, 32 + k - log);
+
+        return buf;
+    } else {
+        skip_bits_long(gb, limit);
+        buf = get_bits_long(gb, esc_len);
+
+        return buf + limit - 1;
+    }
+#else
+    OPEN_READER(re, gb);
+    UPDATE_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
+
+    log = av_log2(buf);
+
+    if (log > 31 - limit) {
+        buf >>= log - k;
+        buf  += (30U - log) << k;
+        LAST_SKIP_BITS(re, gb, 32 + k - log);
+        CLOSE_READER(re, gb);
+
+        return buf;
+    } else {
+        LAST_SKIP_BITS(re, gb, limit);
+        UPDATE_CACHE(re, gb);
+
+        buf = SHOW_UBITS(re, gb, esc_len);
+
+        LAST_SKIP_BITS(re, gb, esc_len);
+        CLOSE_READER(re, gb);
+
+        return buf + limit - 1;
+    }
+#endif
+}
+
+/**
+ * read unsigned golomb rice code (jpegls).
+ */
+static inline int get_ur_golomb_jpegls(GetBitContext *gb, int k, int limit,
+                                       int esc_len)
+{
+    unsigned int buf;
+    int log;
+
+#if CACHED_BITSTREAM_READER
+    buf = show_bits_long(gb, 32);
+
+    log = av_log2(buf);
+
+    if (log - k >= 1 && 32 - log < limit) {
+        buf >>= log - k;
+        buf  += (30 - log) << k;
+        skip_bits_long(gb, 32 + k - log);
+
+        return buf;
+    } else {
+        int i;
+        for (i = 0;
+             i < limit && get_bits1(gb) == 0 && get_bits_left(gb) > 0;
+             i++);
+
+        if (i < limit - 1) {
+            buf = get_bits_long(gb, k);
+
+            return buf + (i << k);
+        } else if (i == limit - 1) {
+            buf = get_bits_long(gb, esc_len);
+
+            return buf + 1;
+        } else
+            return -1;
+    }
+#else
+    OPEN_READER(re, gb);
+    UPDATE_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
+
+    log = av_log2(buf);
+
+    av_assert2(k <= 31);
+
+    if (log - k >= 32 - MIN_CACHE_BITS + (MIN_CACHE_BITS == 32) &&
+        32 - log < limit) {
+        buf >>= log - k;
+        buf  += (30U - log) << k;
+        LAST_SKIP_BITS(re, gb, 32 + k - log);
+        CLOSE_READER(re, gb);
+
+        return buf;
+    } else {
+        int i;
+        for (i = 0; i + MIN_CACHE_BITS <= limit && SHOW_UBITS(re, gb, MIN_CACHE_BITS) == 0; i += MIN_CACHE_BITS) {
+            if (gb->size_in_bits <= re_index) {
+                CLOSE_READER(re, gb);
+                return -1;
+            }
+            LAST_SKIP_BITS(re, gb, MIN_CACHE_BITS);
+            UPDATE_CACHE(re, gb);
+        }
+        for (; i < limit && SHOW_UBITS(re, gb, 1) == 0; i++) {
+            SKIP_BITS(re, gb, 1);
+        }
+        LAST_SKIP_BITS(re, gb, 1);
+        UPDATE_CACHE(re, gb);
+
+        if (i < limit - 1) {
+            if (k) {
+                if (k > MIN_CACHE_BITS - 1) {
+                    buf = SHOW_UBITS(re, gb, 16) << (k-16);
+                    LAST_SKIP_BITS(re, gb, 16);
+                    UPDATE_CACHE(re, gb);
+                    buf |= SHOW_UBITS(re, gb, k-16);
+                    LAST_SKIP_BITS(re, gb, k-16);
+                } else {
+                    buf = SHOW_UBITS(re, gb, k);
+                    LAST_SKIP_BITS(re, gb, k);
+                }
+            } else {
+                buf = 0;
+            }
+
+            buf += ((SUINT)i << k);
+        } else if (i == limit - 1) {
+            buf = SHOW_UBITS(re, gb, esc_len);
+            LAST_SKIP_BITS(re, gb, esc_len);
+
+            buf ++;
+        } else {
+            buf = -1;
+        }
+        CLOSE_READER(re, gb);
+        return buf;
+    }
+#endif
+}
+
+/**
+ * read signed golomb rice code (ffv1).
+ */
+static inline int get_sr_golomb(GetBitContext *gb, int k, int limit,
+                                int esc_len)
+{
+    unsigned v = get_ur_golomb(gb, k, limit, esc_len);
+    return (v >> 1) ^ -(v & 1);
+}
+
+/**
+ * read signed golomb rice code (flac).
+ */
+static inline int get_sr_golomb_flac(GetBitContext *gb, int k, int limit,
+                                     int esc_len)
+{
+    unsigned v = get_ur_golomb_jpegls(gb, k, limit, esc_len);
+    return (v >> 1) ^ -(v & 1);
+}
+
+/**
+ * read unsigned golomb rice code (shorten).
+ */
+static inline unsigned int get_ur_golomb_shorten(GetBitContext *gb, int k)
+{
+    return get_ur_golomb_jpegls(gb, k, INT_MAX, 0);
+}
+
+/**
+ * read signed golomb rice code (shorten).
+ */
+static inline int get_sr_golomb_shorten(GetBitContext *gb, int k)
+{
+    int uvar = get_ur_golomb_jpegls(gb, k + 1, INT_MAX, 0);
+    return (uvar >> 1) ^ -(uvar & 1);
+}
+
+#ifdef TRACE
+
+static inline int get_ue(GetBitContext *s, const char *file, const char *func,
+                         int line)
+{
+    int show = show_bits(s, 24);
+    int pos  = get_bits_count(s);
+    int i    = get_ue_golomb(s);
+    int len  = get_bits_count(s) - pos;
+    int bits = show >> (24 - len);
+
+    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d ue  @%5d in %s %s:%d\n",
+           bits, len, i, pos, file, func, line);
+
+    return i;
+}
+
+static inline int get_se(GetBitContext *s, const char *file, const char *func,
+                         int line)
+{
+    int show = show_bits(s, 24);
+    int pos  = get_bits_count(s);
+    int i    = get_se_golomb(s);
+    int len  = get_bits_count(s) - pos;
+    int bits = show >> (24 - len);
+
+    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d se  @%5d in %s %s:%d\n",
+           bits, len, i, pos, file, func, line);
+
+    return i;
+}
+
+static inline int get_te(GetBitContext *s, int r, char *file, const char *func,
+                         int line)
+{
+    int show = show_bits(s, 24);
+    int pos  = get_bits_count(s);
+    int i    = get_te0_golomb(s, r);
+    int len  = get_bits_count(s) - pos;
+    int bits = show >> (24 - len);
+
+    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d te  @%5d in %s %s:%d\n",
+           bits, len, i, pos, file, func, line);
+
+    return i;
+}
+
+#define get_ue_golomb(a) get_ue(a, __FILE__, __func__, __LINE__)
+#define get_se_golomb(a) get_se(a, __FILE__, __func__, __LINE__)
+#define get_te_golomb(a, r)  get_te(a, r, __FILE__, __func__, __LINE__)
+#define get_te0_golomb(a, r) get_te(a, r, __FILE__, __func__, __LINE__)
+
+#endif /* TRACE */
+
+/**
+ * write unsigned exp golomb code. 2^16 - 2 at most
+ */
+static inline void set_ue_golomb(PutBitContext *pb, int i)
+{
+    av_assert2(i >= 0);
+    av_assert2(i <= 0xFFFE);
+
+    if (i < 256)
+        put_bits(pb, ff_ue_golomb_len[i], i + 1);
+    else {
+        int e = av_log2(i + 1);
+        put_bits(pb, 2 * e + 1, i + 1);
+    }
+}
+
+/**
+ * write unsigned exp golomb code. 2^32-2 at most.
+ */
+static inline void set_ue_golomb_long(PutBitContext *pb, uint32_t i)
+{
+    av_assert2(i <= (UINT32_MAX - 1));
+
+    if (i < 256)
+        put_bits(pb, ff_ue_golomb_len[i], i + 1);
+    else {
+        int e = av_log2(i + 1);
+        put_bits64(pb, 2 * e + 1, i + 1);
+    }
+}
+
+/**
+ * write truncated unsigned exp golomb code.
+ */
+static inline void set_te_golomb(PutBitContext *pb, int i, int range)
+{
+    av_assert2(range >= 1);
+    av_assert2(i <= range);
+
+    if (range == 2)
+        put_bits(pb, 1, i ^ 1);
+    else
+        set_ue_golomb(pb, i);
+}
+
+/**
+ * write signed exp golomb code. 16 bits at most.
+ */
+static inline void set_se_golomb(PutBitContext *pb, int i)
+{
+    i = 2 * i - 1;
+    if (i < 0)
+        i ^= -1;    //FIXME check if gcc does the right thing
+    set_ue_golomb(pb, i);
+}
+
+/**
+ * write unsigned golomb rice code (ffv1).
+ */
+static inline void set_ur_golomb(PutBitContext *pb, int i, int k, int limit,
+                                 int esc_len)
+{
+    int e;
+
+    av_assert2(i >= 0);
+
+    e = i >> k;
+    if (e < limit)
+        put_bits(pb, e + k + 1, (1 << k) + av_mod_uintp2(i, k));
+    else
+        put_bits(pb, limit + esc_len, i - limit + 1);
+}
+
+/**
+ * write unsigned golomb rice code (jpegls).
+ */
+static inline void set_ur_golomb_jpegls(PutBitContext *pb, int i, int k,
+                                        int limit, int esc_len)
+{
+    int e;
+
+    av_assert2(i >= 0);
+
+    e = (i >> k) + 1;
+    if (e < limit) {
+        while (e > 31) {
+            put_bits(pb, 31, 0);
+            e -= 31;
+        }
+        put_bits(pb, e, 1);
+        if (k)
+            put_sbits(pb, k, i);
+    } else {
+        while (limit > 31) {
+            put_bits(pb, 31, 0);
+            limit -= 31;
+        }
+        put_bits(pb, limit, 1);
+        put_bits(pb, esc_len, i - 1);
+    }
+}
+
+/**
+ * write signed golomb rice code (ffv1).
+ */
+static inline void set_sr_golomb(PutBitContext *pb, int i, int k, int limit,
+                                 int esc_len)
+{
+    int v;
+
+    v  = -2 * i - 1;
+    v ^= (v >> 31);
+
+    set_ur_golomb(pb, v, k, limit, esc_len);
+}
+
+/**
+ * write signed golomb rice code (flac).
+ */
+static inline void set_sr_golomb_flac(PutBitContext *pb, int i, int k,
+                                      int limit, int esc_len)
+{
+    int v;
+
+    v  = -2 * i - 1;
+    v ^= (v >> 31);
+
+    set_ur_golomb_jpegls(pb, v, k, limit, esc_len);
+}
+
+#endif /* AVCODEC_GOLOMB_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/h263dsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/h263dsp.c
new file mode 100644
index 000000000..b3c0bcd45
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/h263dsp.c
@@ -0,0 +1,126 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/common.h"
+#include "config.h"
+#include "h263dsp.h"
+
+const uint8_t ff_h263_loop_filter_strength[32] = {
+    0, 1, 1, 2, 2, 3, 3,  4,  4,  4,  5,  5,  6,  6,  7, 7,
+    7, 8, 8, 8, 9, 9, 9, 10, 10, 10, 11, 11, 11, 12, 12, 12
+};
+
+static void h263_h_loop_filter_c(uint8_t *src, int stride, int qscale)
+{
+    int y;
+    const int strength = ff_h263_loop_filter_strength[qscale];
+
+    for (y = 0; y < 8; y++) {
+        int d1, d2, ad1;
+        int p0 = src[y * stride - 2];
+        int p1 = src[y * stride - 1];
+        int p2 = src[y * stride + 0];
+        int p3 = src[y * stride + 1];
+        int d  = (p0 - p3 + 4 * (p2 - p1)) / 8;
+
+        if (d < -2 * strength)
+            d1 = 0;
+        else if (d < -strength)
+            d1 = -2 * strength - d;
+        else if (d < strength)
+            d1 = d;
+        else if (d < 2 * strength)
+            d1 = 2 * strength - d;
+        else
+            d1 = 0;
+
+        p1 += d1;
+        p2 -= d1;
+        if (p1 & 256)
+            p1 = ~(p1 >> 31);
+        if (p2 & 256)
+            p2 = ~(p2 >> 31);
+
+        src[y * stride - 1] = p1;
+        src[y * stride + 0] = p2;
+
+        ad1 = FFABS(d1) >> 1;
+
+        d2 = av_clip((p0 - p3) / 4, -ad1, ad1);
+
+        src[y * stride - 2] = p0 - d2;
+        src[y * stride + 1] = p3 + d2;
+    }
+}
+
+static void h263_v_loop_filter_c(uint8_t *src, int stride, int qscale)
+{
+    int x;
+    const int strength = ff_h263_loop_filter_strength[qscale];
+
+    for (x = 0; x < 8; x++) {
+        int d1, d2, ad1;
+        int p0 = src[x - 2 * stride];
+        int p1 = src[x - 1 * stride];
+        int p2 = src[x + 0 * stride];
+        int p3 = src[x + 1 * stride];
+        int d  = (p0 - p3 + 4 * (p2 - p1)) / 8;
+
+        if (d < -2 * strength)
+            d1 = 0;
+        else if (d < -strength)
+            d1 = -2 * strength - d;
+        else if (d < strength)
+            d1 = d;
+        else if (d < 2 * strength)
+            d1 = 2 * strength - d;
+        else
+            d1 = 0;
+
+        p1 += d1;
+        p2 -= d1;
+        if (p1 & 256)
+            p1 = ~(p1 >> 31);
+        if (p2 & 256)
+            p2 = ~(p2 >> 31);
+
+        src[x - 1 * stride] = p1;
+        src[x + 0 * stride] = p2;
+
+        ad1 = FFABS(d1) >> 1;
+
+        d2 = av_clip((p0 - p3) / 4, -ad1, ad1);
+
+        src[x - 2 * stride] = p0 - d2;
+        src[x + stride]     = p3 + d2;
+    }
+}
+
+av_cold void ff_h263dsp_init(H263DSPContext *ctx)
+{
+    ctx->h263_h_loop_filter = h263_h_loop_filter_c;
+    ctx->h263_v_loop_filter = h263_v_loop_filter_c;
+
+    if (ARCH_X86)
+        ff_h263dsp_init_x86(ctx);
+    if (ARCH_MIPS)
+        ff_h263dsp_init_mips(ctx);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/h263dsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/h263dsp.h
new file mode 100644
index 000000000..1abea3ca8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/h263dsp.h
@@ -0,0 +1,35 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_H263DSP_H
+#define AVCODEC_H263DSP_H
+
+#include <stdint.h>
+
+extern const uint8_t ff_h263_loop_filter_strength[32];
+
+typedef struct H263DSPContext {
+    void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);
+    void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);
+} H263DSPContext;
+
+void ff_h263dsp_init(H263DSPContext *ctx);
+void ff_h263dsp_init_x86(H263DSPContext *ctx);
+void ff_h263dsp_init_mips(H263DSPContext *ctx);
+
+#endif /* AVCODEC_H263DSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/h264chroma.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/h264chroma.c
new file mode 100644
index 000000000..c2f1f30f5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/h264chroma.c
@@ -0,0 +1,59 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "h264chroma.h"
+
+#define BIT_DEPTH 8
+#include "h264chroma_template.c"
+#undef BIT_DEPTH
+
+#define BIT_DEPTH 16
+#include "h264chroma_template.c"
+#undef BIT_DEPTH
+
+#define SET_CHROMA(depth)                                                   \
+    c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_ ## depth ## _c; \
+    c->put_h264_chroma_pixels_tab[1] = put_h264_chroma_mc4_ ## depth ## _c; \
+    c->put_h264_chroma_pixels_tab[2] = put_h264_chroma_mc2_ ## depth ## _c; \
+    c->put_h264_chroma_pixels_tab[3] = put_h264_chroma_mc1_ ## depth ## _c; \
+    c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_ ## depth ## _c; \
+    c->avg_h264_chroma_pixels_tab[1] = avg_h264_chroma_mc4_ ## depth ## _c; \
+    c->avg_h264_chroma_pixels_tab[2] = avg_h264_chroma_mc2_ ## depth ## _c; \
+    c->avg_h264_chroma_pixels_tab[3] = avg_h264_chroma_mc1_ ## depth ## _c; \
+
+av_cold void ff_h264chroma_init(H264ChromaContext *c, int bit_depth)
+{
+    if (bit_depth > 8 && bit_depth <= 16) {
+        SET_CHROMA(16);
+    } else {
+        SET_CHROMA(8);
+    }
+
+    if (ARCH_AARCH64)
+        ff_h264chroma_init_aarch64(c, bit_depth);
+    if (ARCH_ARM)
+        ff_h264chroma_init_arm(c, bit_depth);
+    if (ARCH_PPC)
+        ff_h264chroma_init_ppc(c, bit_depth);
+    if (ARCH_X86)
+        ff_h264chroma_init_x86(c, bit_depth);
+    if (ARCH_MIPS)
+        ff_h264chroma_init_mips(c, bit_depth);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/h264chroma.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/h264chroma.h
new file mode 100644
index 000000000..5c89fd12d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/h264chroma.h
@@ -0,0 +1,40 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_H264CHROMA_H
+#define AVCODEC_H264CHROMA_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+typedef void (*h264_chroma_mc_func)(uint8_t *dst /*align 8*/, uint8_t *src /*align 1*/, ptrdiff_t srcStride, int h, int x, int y);
+
+typedef struct H264ChromaContext {
+    h264_chroma_mc_func put_h264_chroma_pixels_tab[4];
+    h264_chroma_mc_func avg_h264_chroma_pixels_tab[4];
+} H264ChromaContext;
+
+void ff_h264chroma_init(H264ChromaContext *c, int bit_depth);
+
+void ff_h264chroma_init_aarch64(H264ChromaContext *c, int bit_depth);
+void ff_h264chroma_init_arm(H264ChromaContext *c, int bit_depth);
+void ff_h264chroma_init_ppc(H264ChromaContext *c, int bit_depth);
+void ff_h264chroma_init_x86(H264ChromaContext *c, int bit_depth);
+void ff_h264chroma_init_mips(H264ChromaContext *c, int bit_depth);
+
+#endif /* AVCODEC_H264CHROMA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/hpeldsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/hpeldsp.c
new file mode 100644
index 000000000..8e2fd8fcf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/hpeldsp.c
@@ -0,0 +1,370 @@
+/*
+ * Half-pel DSP functions.
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * gmc & q-pel & 32/64 bit based MC by Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Half-pel DSP functions.
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/intreadwrite.h"
+#include "hpeldsp.h"
+
+#define BIT_DEPTH 8
+#include "hpel_template.c"
+#include "pel_template.c"
+
+#define PIXOP2(OPNAME, OP)                                              \
+static inline void OPNAME ## _no_rnd_pixels8_l2_8(uint8_t *dst,         \
+                                                  const uint8_t *src1,  \
+                                                  const uint8_t *src2,  \
+                                                  int dst_stride,       \
+                                                  int src_stride1,      \
+                                                  int src_stride2,      \
+                                                  int h)                \
+{                                                                       \
+    int i;                                                              \
+                                                                        \
+    for (i = 0; i < h; i++) {                                           \
+        uint32_t a, b;                                                  \
+        a = AV_RN32(&src1[i * src_stride1]);                            \
+        b = AV_RN32(&src2[i * src_stride2]);                            \
+        OP(*((uint32_t *) &dst[i * dst_stride]),                        \
+           no_rnd_avg32(a, b));                                         \
+        a = AV_RN32(&src1[i * src_stride1 + 4]);                        \
+        b = AV_RN32(&src2[i * src_stride2 + 4]);                        \
+        OP(*((uint32_t *) &dst[i * dst_stride + 4]),                    \
+           no_rnd_avg32(a, b));                                         \
+    }                                                                   \
+}                                                                       \
+                                                                        \
+static inline void OPNAME ## _no_rnd_pixels8_x2_8_c(uint8_t *block,     \
+                                                    const uint8_t *pixels, \
+                                                    ptrdiff_t line_size, \
+                                                    int h)              \
+{                                                                       \
+    OPNAME ## _no_rnd_pixels8_l2_8(block, pixels, pixels + 1,           \
+                                   line_size, line_size, line_size, h); \
+}                                                                       \
+                                                                        \
+static inline void OPNAME ## _pixels8_x2_8_c(uint8_t *block,            \
+                                             const uint8_t *pixels,     \
+                                             ptrdiff_t line_size,       \
+                                             int h)                     \
+{                                                                       \
+    OPNAME ## _pixels8_l2_8(block, pixels, pixels + 1,                  \
+                            line_size, line_size, line_size, h);        \
+}                                                                       \
+                                                                        \
+static inline void OPNAME ## _no_rnd_pixels8_y2_8_c(uint8_t *block,     \
+                                                    const uint8_t *pixels, \
+                                                    ptrdiff_t line_size, \
+                                                    int h)              \
+{                                                                       \
+    OPNAME ## _no_rnd_pixels8_l2_8(block, pixels, pixels + line_size,   \
+                                   line_size, line_size, line_size, h); \
+}                                                                       \
+                                                                        \
+static inline void OPNAME ## _pixels8_y2_8_c(uint8_t *block,            \
+                                             const uint8_t *pixels,     \
+                                             ptrdiff_t line_size,       \
+                                             int h)                     \
+{                                                                       \
+    OPNAME ## _pixels8_l2_8(block, pixels, pixels + line_size,          \
+                            line_size, line_size, line_size, h);        \
+}                                                                       \
+                                                                        \
+static inline void OPNAME ## _pixels4_x2_8_c(uint8_t *block,            \
+                                             const uint8_t *pixels,     \
+                                             ptrdiff_t line_size,       \
+                                             int h)                     \
+{                                                                       \
+    OPNAME ## _pixels4_l2_8(block, pixels, pixels + 1,                  \
+                            line_size, line_size, line_size, h);        \
+}                                                                       \
+                                                                        \
+static inline void OPNAME ## _pixels4_y2_8_c(uint8_t *block,            \
+                                             const uint8_t *pixels,     \
+                                             ptrdiff_t line_size,       \
+                                             int h)                     \
+{                                                                       \
+    OPNAME ## _pixels4_l2_8(block, pixels, pixels + line_size,          \
+                            line_size, line_size, line_size, h);        \
+}                                                                       \
+                                                                        \
+static inline void OPNAME ## _pixels2_x2_8_c(uint8_t *block,            \
+                                             const uint8_t *pixels,     \
+                                             ptrdiff_t line_size,       \
+                                             int h)                     \
+{                                                                       \
+    OPNAME ## _pixels2_l2_8(block, pixels, pixels + 1,                  \
+                            line_size, line_size, line_size, h);        \
+}                                                                       \
+                                                                        \
+static inline void OPNAME ## _pixels2_y2_8_c(uint8_t *block,            \
+                                             const uint8_t *pixels,     \
+                                             ptrdiff_t line_size,       \
+                                             int h)                     \
+{                                                                       \
+    OPNAME ## _pixels2_l2_8(block, pixels, pixels + line_size,          \
+                            line_size, line_size, line_size, h);        \
+}                                                                       \
+                                                                        \
+static inline void OPNAME ## _pixels2_xy2_8_c(uint8_t *block,           \
+                                              const uint8_t *pixels,    \
+                                              ptrdiff_t line_size,      \
+                                              int h)                    \
+{                                                                       \
+    int i, a1, b1;                                                      \
+    int a0 = pixels[0];                                                 \
+    int b0 = pixels[1] + 2;                                             \
+                                                                        \
+    a0 += b0;                                                           \
+    b0 += pixels[2];                                                    \
+    pixels += line_size;                                                \
+    for (i = 0; i < h; i += 2) {                                        \
+        a1  = pixels[0];                                                \
+        b1  = pixels[1];                                                \
+        a1 += b1;                                                       \
+        b1 += pixels[2];                                                \
+                                                                        \
+        block[0] = (a1 + a0) >> 2; /* FIXME non put */                  \
+        block[1] = (b1 + b0) >> 2;                                      \
+                                                                        \
+        pixels += line_size;                                            \
+        block  += line_size;                                            \
+                                                                        \
+        a0  = pixels[0];                                                \
+        b0  = pixels[1] + 2;                                            \
+        a0 += b0;                                                       \
+        b0 += pixels[2];                                                \
+                                                                        \
+        block[0] = (a1 + a0) >> 2;                                      \
+        block[1] = (b1 + b0) >> 2;                                      \
+        pixels  += line_size;                                           \
+        block   += line_size;                                           \
+    }                                                                   \
+}                                                                       \
+                                                                        \
+static inline void OPNAME ## _pixels4_xy2_8_c(uint8_t *block,           \
+                                              const uint8_t *pixels,    \
+                                              ptrdiff_t line_size,      \
+                                              int h)                    \
+{                                                                       \
+    /* FIXME HIGH BIT DEPTH */                                          \
+    int i;                                                              \
+    const uint32_t a = AV_RN32(pixels);                                 \
+    const uint32_t b = AV_RN32(pixels + 1);                             \
+    uint32_t l0 = (a & 0x03030303UL) +                                  \
+                  (b & 0x03030303UL) +                                  \
+                       0x02020202UL;                                    \
+    uint32_t h0 = ((a & 0xFCFCFCFCUL) >> 2) +                           \
+                  ((b & 0xFCFCFCFCUL) >> 2);                            \
+    uint32_t l1, h1;                                                    \
+                                                                        \
+    pixels += line_size;                                                \
+    for (i = 0; i < h; i += 2) {                                        \
+        uint32_t a = AV_RN32(pixels);                                   \
+        uint32_t b = AV_RN32(pixels + 1);                               \
+        l1 = (a & 0x03030303UL) +                                       \
+             (b & 0x03030303UL);                                        \
+        h1 = ((a & 0xFCFCFCFCUL) >> 2) +                                \
+             ((b & 0xFCFCFCFCUL) >> 2);                                 \
+        OP(*((uint32_t *) block), h0 + h1 +                             \
+           (((l0 + l1) >> 2) & 0x0F0F0F0FUL));                          \
+        pixels += line_size;                                            \
+        block  += line_size;                                            \
+        a  = AV_RN32(pixels);                                           \
+        b  = AV_RN32(pixels + 1);                                       \
+        l0 = (a & 0x03030303UL) +                                       \
+             (b & 0x03030303UL) +                                       \
+                  0x02020202UL;                                         \
+        h0 = ((a & 0xFCFCFCFCUL) >> 2) +                                \
+             ((b & 0xFCFCFCFCUL) >> 2);                                 \
+        OP(*((uint32_t *) block), h0 + h1 +                             \
+           (((l0 + l1) >> 2) & 0x0F0F0F0FUL));                          \
+        pixels += line_size;                                            \
+        block  += line_size;                                            \
+    }                                                                   \
+}                                                                       \
+                                                                        \
+static inline void OPNAME ## _pixels8_xy2_8_c(uint8_t *block,           \
+                                              const uint8_t *pixels,    \
+                                              ptrdiff_t line_size,      \
+                                              int h)                    \
+{                                                                       \
+    /* FIXME HIGH BIT DEPTH */                                          \
+    int j;                                                              \
+                                                                        \
+    for (j = 0; j < 2; j++) {                                           \
+        int i;                                                          \
+        const uint32_t a = AV_RN32(pixels);                             \
+        const uint32_t b = AV_RN32(pixels + 1);                         \
+        uint32_t l0 = (a & 0x03030303UL) +                              \
+                      (b & 0x03030303UL) +                              \
+                           0x02020202UL;                                \
+        uint32_t h0 = ((a & 0xFCFCFCFCUL) >> 2) +                       \
+                      ((b & 0xFCFCFCFCUL) >> 2);                        \
+        uint32_t l1, h1;                                                \
+                                                                        \
+        pixels += line_size;                                            \
+        for (i = 0; i < h; i += 2) {                                    \
+            uint32_t a = AV_RN32(pixels);                               \
+            uint32_t b = AV_RN32(pixels + 1);                           \
+            l1 = (a & 0x03030303UL) +                                   \
+                 (b & 0x03030303UL);                                    \
+            h1 = ((a & 0xFCFCFCFCUL) >> 2) +                            \
+                 ((b & 0xFCFCFCFCUL) >> 2);                             \
+            OP(*((uint32_t *) block), h0 + h1 +                         \
+               (((l0 + l1) >> 2) & 0x0F0F0F0FUL));                      \
+            pixels += line_size;                                        \
+            block  += line_size;                                        \
+            a  = AV_RN32(pixels);                                       \
+            b  = AV_RN32(pixels + 1);                                   \
+            l0 = (a & 0x03030303UL) +                                   \
+                 (b & 0x03030303UL) +                                   \
+                      0x02020202UL;                                     \
+            h0 = ((a & 0xFCFCFCFCUL) >> 2) +                            \
+                 ((b & 0xFCFCFCFCUL) >> 2);                             \
+            OP(*((uint32_t *) block), h0 + h1 +                         \
+               (((l0 + l1) >> 2) & 0x0F0F0F0FUL));                      \
+            pixels += line_size;                                        \
+            block  += line_size;                                        \
+        }                                                               \
+        pixels += 4 - line_size * (h + 1);                              \
+        block  += 4 - line_size * h;                                    \
+    }                                                                   \
+}                                                                       \
+                                                                        \
+static inline void OPNAME ## _no_rnd_pixels8_xy2_8_c(uint8_t *block,    \
+                                                     const uint8_t *pixels, \
+                                                     ptrdiff_t line_size, \
+                                                     int h)             \
+{                                                                       \
+    /* FIXME HIGH BIT DEPTH */                                          \
+    int j;                                                              \
+                                                                        \
+    for (j = 0; j < 2; j++) {                                           \
+        int i;                                                          \
+        const uint32_t a = AV_RN32(pixels);                             \
+        const uint32_t b = AV_RN32(pixels + 1);                         \
+        uint32_t l0 = (a & 0x03030303UL) +                              \
+                      (b & 0x03030303UL) +                              \
+                           0x01010101UL;                                \
+        uint32_t h0 = ((a & 0xFCFCFCFCUL) >> 2) +                       \
+                      ((b & 0xFCFCFCFCUL) >> 2);                        \
+        uint32_t l1, h1;                                                \
+                                                                        \
+        pixels += line_size;                                            \
+        for (i = 0; i < h; i += 2) {                                    \
+            uint32_t a = AV_RN32(pixels);                               \
+            uint32_t b = AV_RN32(pixels + 1);                           \
+            l1 = (a & 0x03030303UL) +                                   \
+                 (b & 0x03030303UL);                                    \
+            h1 = ((a & 0xFCFCFCFCUL) >> 2) +                            \
+                 ((b & 0xFCFCFCFCUL) >> 2);                             \
+            OP(*((uint32_t *) block), h0 + h1 +                         \
+               (((l0 + l1) >> 2) & 0x0F0F0F0FUL));                      \
+            pixels += line_size;                                        \
+            block  += line_size;                                        \
+            a  = AV_RN32(pixels);                                       \
+            b  = AV_RN32(pixels + 1);                                   \
+            l0 = (a & 0x03030303UL) +                                   \
+                 (b & 0x03030303UL) +                                   \
+                      0x01010101UL;                                     \
+            h0 = ((a & 0xFCFCFCFCUL) >> 2) +                            \
+                 ((b & 0xFCFCFCFCUL) >> 2);                             \
+            OP(*((uint32_t *) block), h0 + h1 +                         \
+               (((l0 + l1) >> 2) & 0x0F0F0F0FUL));                      \
+            pixels += line_size;                                        \
+            block  += line_size;                                        \
+        }                                                               \
+        pixels += 4 - line_size * (h + 1);                              \
+        block  += 4 - line_size * h;                                    \
+    }                                                                   \
+}                                                                       \
+                                                                        \
+CALL_2X_PIXELS(OPNAME ## _pixels16_x2_8_c,                              \
+               OPNAME ## _pixels8_x2_8_c,                               \
+               8)                                                       \
+CALL_2X_PIXELS(OPNAME ## _pixels16_y2_8_c,                              \
+               OPNAME ## _pixels8_y2_8_c,                               \
+               8)                                                       \
+CALL_2X_PIXELS(OPNAME ## _pixels16_xy2_8_c,                             \
+               OPNAME ## _pixels8_xy2_8_c,                              \
+               8)                                                       \
+CALL_2X_PIXELS(OPNAME ## _no_rnd_pixels16_8_c,                          \
+               OPNAME ## _pixels8_8_c,                                  \
+               8)                                                       \
+CALL_2X_PIXELS(OPNAME ## _no_rnd_pixels16_x2_8_c,                       \
+               OPNAME ## _no_rnd_pixels8_x2_8_c,                        \
+               8)                                                       \
+CALL_2X_PIXELS(OPNAME ## _no_rnd_pixels16_y2_8_c,                       \
+               OPNAME ## _no_rnd_pixels8_y2_8_c,                        \
+               8)                                                       \
+CALL_2X_PIXELS(OPNAME ## _no_rnd_pixels16_xy2_8_c,                      \
+               OPNAME ## _no_rnd_pixels8_xy2_8_c,                       \
+               8)                                                       \
+
+#define op_avg(a, b) a = rnd_avg32(a, b)
+#define op_put(a, b) a = b
+#define put_no_rnd_pixels8_8_c put_pixels8_8_c
+PIXOP2(avg, op_avg)
+PIXOP2(put, op_put)
+#undef op_avg
+#undef op_put
+
+av_cold void ff_hpeldsp_init(HpelDSPContext *c, int flags)
+{
+#define hpel_funcs(prefix, idx, num) \
+    c->prefix ## _pixels_tab idx [0] = prefix ## _pixels ## num ## _8_c; \
+    c->prefix ## _pixels_tab idx [1] = prefix ## _pixels ## num ## _x2_8_c; \
+    c->prefix ## _pixels_tab idx [2] = prefix ## _pixels ## num ## _y2_8_c; \
+    c->prefix ## _pixels_tab idx [3] = prefix ## _pixels ## num ## _xy2_8_c
+
+    hpel_funcs(put, [0], 16);
+    hpel_funcs(put, [1],  8);
+    hpel_funcs(put, [2],  4);
+    hpel_funcs(put, [3],  2);
+    hpel_funcs(put_no_rnd, [0], 16);
+    hpel_funcs(put_no_rnd, [1],  8);
+    hpel_funcs(avg, [0], 16);
+    hpel_funcs(avg, [1],  8);
+    hpel_funcs(avg, [2],  4);
+    hpel_funcs(avg, [3],  2);
+    hpel_funcs(avg_no_rnd,, 16);
+
+    if (ARCH_AARCH64)
+        ff_hpeldsp_init_aarch64(c, flags);
+    if (ARCH_ALPHA)
+        ff_hpeldsp_init_alpha(c, flags);
+    if (ARCH_ARM)
+        ff_hpeldsp_init_arm(c, flags);
+    if (ARCH_PPC)
+        ff_hpeldsp_init_ppc(c, flags);
+    if (ARCH_X86)
+        ff_hpeldsp_init_x86(c, flags);
+    if (ARCH_MIPS)
+        ff_hpeldsp_init_mips(c, flags);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/hpeldsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/hpeldsp.h
new file mode 100644
index 000000000..768139bfc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/hpeldsp.h
@@ -0,0 +1,106 @@
+/*
+ * Half-pel DSP functions.
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Half-pel DSP functions.
+ */
+
+#ifndef AVCODEC_HPELDSP_H
+#define AVCODEC_HPELDSP_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+/* add and put pixel (decoding) */
+// blocksizes for hpel_pixels_func are 8x4,8x8 16x8 16x16
+// h for hpel_pixels_func is limited to {width/2, width} but never larger
+// than 16 and never smaller than 4
+typedef void (*op_pixels_func)(uint8_t *block /*align width (8 or 16)*/,
+                               const uint8_t *pixels /*align 1*/,
+                               ptrdiff_t line_size, int h);
+
+/**
+ * Half-pel DSP context.
+ */
+typedef struct HpelDSPContext {
+    /**
+     * Halfpel motion compensation with rounding (a+b+1)>>1.
+     * this is an array[4][4] of motion compensation functions for 4
+     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
+     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
+     * @param block destination where the result is stored
+     * @param pixels source
+     * @param line_size number of bytes in a horizontal line of block
+     * @param h height
+     */
+    op_pixels_func put_pixels_tab[4][4];
+
+    /**
+     * Halfpel motion compensation with rounding (a+b+1)>>1.
+     * This is an array[4][4] of motion compensation functions for 4
+     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
+     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
+     * @param block destination into which the result is averaged (a+b+1)>>1
+     * @param pixels source
+     * @param line_size number of bytes in a horizontal line of block
+     * @param h height
+     */
+    op_pixels_func avg_pixels_tab[4][4];
+
+    /**
+     * Halfpel motion compensation with no rounding (a+b)>>1.
+     * this is an array[4][4] of motion compensation functions for 2
+     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
+     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
+     * @param block destination where the result is stored
+     * @param pixels source
+     * @param line_size number of bytes in a horizontal line of block
+     * @param h height
+     * @note The size is kept at [4][4] to match the above pixel_tabs and avoid
+     *       out of bounds reads in the motion estimation code.
+     */
+    op_pixels_func put_no_rnd_pixels_tab[4][4];
+
+    /**
+     * Halfpel motion compensation with no rounding (a+b)>>1.
+     * this is an array[4] of motion compensation functions for 1
+     * horizontal blocksize (16) and the 4 halfpel positions<br>
+     * *pixels_tab[0][ xhalfpel + 2*yhalfpel ]
+     * @param block destination into which the result is averaged (a+b)>>1
+     * @param pixels source
+     * @param line_size number of bytes in a horizontal line of block
+     * @param h height
+     */
+    op_pixels_func avg_no_rnd_pixels_tab[4];
+} HpelDSPContext;
+
+void ff_hpeldsp_init(HpelDSPContext *c, int flags);
+
+void ff_hpeldsp_init_aarch64(HpelDSPContext *c, int flags);
+void ff_hpeldsp_init_alpha(HpelDSPContext *c, int flags);
+void ff_hpeldsp_init_arm(HpelDSPContext *c, int flags);
+void ff_hpeldsp_init_ppc(HpelDSPContext *c, int flags);
+void ff_hpeldsp_init_x86(HpelDSPContext *c, int flags);
+void ff_hpeldsp_init_mips(HpelDSPContext *c, int flags);
+
+#endif /* AVCODEC_HPELDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/hwaccel.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/hwaccel.h
new file mode 100644
index 000000000..3aaa92571
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/hwaccel.h
@@ -0,0 +1,84 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_HWACCEL_H
+#define AVCODEC_HWACCEL_H
+
+#include "avcodec.h"
+#include "hwaccels.h"
+
+
+#define HWACCEL_CAP_ASYNC_SAFE      (1 << 0)
+
+
+typedef struct AVCodecHWConfigInternal {
+    /**
+     * This is the structure which will be returned to the user by
+     * avcodec_get_hw_config().
+     */
+    AVCodecHWConfig public;
+    /**
+     * If this configuration uses a hwaccel, a pointer to it.
+     * If not, NULL.
+     */
+    const AVHWAccel *hwaccel;
+} AVCodecHWConfigInternal;
+
+
+// These macros are used to simplify AVCodecHWConfigInternal definitions.
+
+#define HW_CONFIG_HWACCEL(device, frames, ad_hoc, format, device_type_, name) \
+    &(const AVCodecHWConfigInternal) { \
+        .public          = { \
+            .pix_fmt     = AV_PIX_FMT_ ## format, \
+            .methods     = (device ? AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX : 0) | \
+                           (frames ? AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX : 0) | \
+                           (ad_hoc ? AV_CODEC_HW_CONFIG_METHOD_AD_HOC        : 0),  \
+            .device_type = AV_HWDEVICE_TYPE_ ## device_type_, \
+        }, \
+        .hwaccel         = &name, \
+    }
+
+#define HW_CONFIG_INTERNAL(format) \
+    &(const AVCodecHWConfigInternal) { \
+        .public          = { \
+            .pix_fmt     = AV_PIX_FMT_ ## format, \
+            .methods     = AV_CODEC_HW_CONFIG_METHOD_INTERNAL, \
+            .device_type = AV_HWDEVICE_TYPE_NONE, \
+        }, \
+        .hwaccel         = NULL, \
+    }
+
+#define HWACCEL_DXVA2(codec) \
+    HW_CONFIG_HWACCEL(1, 1, 1, DXVA2_VLD,    DXVA2,        ff_ ## codec ## _dxva2_hwaccel)
+#define HWACCEL_D3D11VA2(codec) \
+    HW_CONFIG_HWACCEL(1, 1, 0, D3D11,        D3D11VA,      ff_ ## codec ## _d3d11va2_hwaccel)
+#define HWACCEL_NVDEC(codec) \
+    HW_CONFIG_HWACCEL(1, 1, 0, CUDA,         CUDA,         ff_ ## codec ## _nvdec_hwaccel)
+#define HWACCEL_VAAPI(codec) \
+    HW_CONFIG_HWACCEL(1, 1, 1, VAAPI,        VAAPI,        ff_ ## codec ## _vaapi_hwaccel)
+#define HWACCEL_VDPAU(codec) \
+    HW_CONFIG_HWACCEL(1, 1, 1, VDPAU,        VDPAU,        ff_ ## codec ## _vdpau_hwaccel)
+#define HWACCEL_VIDEOTOOLBOX(codec) \
+    HW_CONFIG_HWACCEL(1, 1, 1, VIDEOTOOLBOX, VIDEOTOOLBOX, ff_ ## codec ## _videotoolbox_hwaccel)
+#define HWACCEL_D3D11VA(codec) \
+    HW_CONFIG_HWACCEL(0, 0, 1, D3D11VA_VLD,  NONE,         ff_ ## codec ## _d3d11va_hwaccel)
+#define HWACCEL_XVMC(codec) \
+    HW_CONFIG_HWACCEL(0, 0, 1, XVMC,         NONE,         ff_ ## codec ## _xvmc_hwaccel)
+
+#endif /* AVCODEC_HWACCEL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/hwaccels.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/hwaccels.h
new file mode 100644
index 000000000..7d73da867
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/hwaccels.h
@@ -0,0 +1,78 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_HWACCELS_H
+#define AVCODEC_HWACCELS_H
+
+#include "avcodec.h"
+
+extern const AVHWAccel ff_h263_vaapi_hwaccel;
+extern const AVHWAccel ff_h263_videotoolbox_hwaccel;
+extern const AVHWAccel ff_h264_d3d11va_hwaccel;
+extern const AVHWAccel ff_h264_d3d11va2_hwaccel;
+extern const AVHWAccel ff_h264_dxva2_hwaccel;
+extern const AVHWAccel ff_h264_nvdec_hwaccel;
+extern const AVHWAccel ff_h264_vaapi_hwaccel;
+extern const AVHWAccel ff_h264_vdpau_hwaccel;
+extern const AVHWAccel ff_h264_videotoolbox_hwaccel;
+extern const AVHWAccel ff_hevc_d3d11va_hwaccel;
+extern const AVHWAccel ff_hevc_d3d11va2_hwaccel;
+extern const AVHWAccel ff_hevc_dxva2_hwaccel;
+extern const AVHWAccel ff_hevc_nvdec_hwaccel;
+extern const AVHWAccel ff_hevc_vaapi_hwaccel;
+extern const AVHWAccel ff_hevc_vdpau_hwaccel;
+extern const AVHWAccel ff_hevc_videotoolbox_hwaccel;
+extern const AVHWAccel ff_mjpeg_nvdec_hwaccel;
+extern const AVHWAccel ff_mjpeg_vaapi_hwaccel;
+extern const AVHWAccel ff_mpeg1_nvdec_hwaccel;
+extern const AVHWAccel ff_mpeg1_vdpau_hwaccel;
+extern const AVHWAccel ff_mpeg1_videotoolbox_hwaccel;
+extern const AVHWAccel ff_mpeg1_xvmc_hwaccel;
+extern const AVHWAccel ff_mpeg2_d3d11va_hwaccel;
+extern const AVHWAccel ff_mpeg2_d3d11va2_hwaccel;
+extern const AVHWAccel ff_mpeg2_nvdec_hwaccel;
+extern const AVHWAccel ff_mpeg2_dxva2_hwaccel;
+extern const AVHWAccel ff_mpeg2_vaapi_hwaccel;
+extern const AVHWAccel ff_mpeg2_vdpau_hwaccel;
+extern const AVHWAccel ff_mpeg2_videotoolbox_hwaccel;
+extern const AVHWAccel ff_mpeg2_xvmc_hwaccel;
+extern const AVHWAccel ff_mpeg4_nvdec_hwaccel;
+extern const AVHWAccel ff_mpeg4_vaapi_hwaccel;
+extern const AVHWAccel ff_mpeg4_vdpau_hwaccel;
+extern const AVHWAccel ff_mpeg4_videotoolbox_hwaccel;
+extern const AVHWAccel ff_vc1_d3d11va_hwaccel;
+extern const AVHWAccel ff_vc1_d3d11va2_hwaccel;
+extern const AVHWAccel ff_vc1_dxva2_hwaccel;
+extern const AVHWAccel ff_vc1_nvdec_hwaccel;
+extern const AVHWAccel ff_vc1_vaapi_hwaccel;
+extern const AVHWAccel ff_vc1_vdpau_hwaccel;
+extern const AVHWAccel ff_vp8_nvdec_hwaccel;
+extern const AVHWAccel ff_vp8_vaapi_hwaccel;
+extern const AVHWAccel ff_vp9_d3d11va_hwaccel;
+extern const AVHWAccel ff_vp9_d3d11va2_hwaccel;
+extern const AVHWAccel ff_vp9_dxva2_hwaccel;
+extern const AVHWAccel ff_vp9_nvdec_hwaccel;
+extern const AVHWAccel ff_vp9_vaapi_hwaccel;
+extern const AVHWAccel ff_wmv3_d3d11va_hwaccel;
+extern const AVHWAccel ff_wmv3_d3d11va2_hwaccel;
+extern const AVHWAccel ff_wmv3_dxva2_hwaccel;
+extern const AVHWAccel ff_wmv3_nvdec_hwaccel;
+extern const AVHWAccel ff_wmv3_vaapi_hwaccel;
+extern const AVHWAccel ff_wmv3_vdpau_hwaccel;
+
+#endif /* AVCODEC_HWACCELS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/idctdsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/idctdsp.h
new file mode 100644
index 000000000..ca21a31a0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/idctdsp.h
@@ -0,0 +1,122 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_IDCTDSP_H
+#define AVCODEC_IDCTDSP_H
+
+#include <stdint.h>
+
+#include "config.h"
+
+#include "avcodec.h"
+
+/**
+ * Scantable.
+ */
+typedef struct ScanTable {
+    const uint8_t *scantable;
+    uint8_t permutated[64];
+    uint8_t raster_end[64];
+} ScanTable;
+
+enum idct_permutation_type {
+    FF_IDCT_PERM_NONE,
+    FF_IDCT_PERM_LIBMPEG2,
+    FF_IDCT_PERM_SIMPLE,
+    FF_IDCT_PERM_TRANSPOSE,
+    FF_IDCT_PERM_PARTTRANS,
+    FF_IDCT_PERM_SSE2,
+};
+
+void ff_init_scantable(uint8_t *permutation, ScanTable *st,
+                       const uint8_t *src_scantable);
+void ff_init_scantable_permutation(uint8_t *idct_permutation,
+                                   enum idct_permutation_type perm_type);
+int ff_init_scantable_permutation_x86(uint8_t *idct_permutation,
+                                      enum idct_permutation_type perm_type);
+
+typedef struct IDCTDSPContext {
+    /* pixel ops : interface with DCT */
+    void (*put_pixels_clamped)(const int16_t *block /* align 16 */,
+                               uint8_t *av_restrict pixels /* align 8 */,
+                               ptrdiff_t line_size);
+    void (*put_signed_pixels_clamped)(const int16_t *block /* align 16 */,
+                                      uint8_t *av_restrict pixels /* align 8 */,
+                                      ptrdiff_t line_size);
+    void (*add_pixels_clamped)(const int16_t *block /* align 16 */,
+                               uint8_t *av_restrict pixels /* align 8 */,
+                               ptrdiff_t line_size);
+
+    void (*idct)(int16_t *block /* align 16 */);
+
+    /**
+     * block -> idct -> clip to unsigned 8 bit -> dest.
+     * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
+     * @param line_size size in bytes of a horizontal line of dest
+     */
+    void (*idct_put)(uint8_t *dest /* align 8 */,
+                     ptrdiff_t line_size, int16_t *block /* align 16 */);
+
+    /**
+     * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
+     * @param line_size size in bytes of a horizontal line of dest
+     */
+    void (*idct_add)(uint8_t *dest /* align 8 */,
+                     ptrdiff_t line_size, int16_t *block /* align 16 */);
+
+    /**
+     * IDCT input permutation.
+     * Several optimized IDCTs need a permutated input (relative to the
+     * normal order of the reference IDCT).
+     * This permutation must be performed before the idct_put/add.
+     * Note, normally this can be merged with the zigzag/alternate scan<br>
+     * An example to avoid confusion:
+     * - (->decode coeffs -> zigzag reorder -> dequant -> reference IDCT -> ...)
+     * - (x -> reference DCT -> reference IDCT -> x)
+     * - (x -> reference DCT -> simple_mmx_perm = idct_permutation
+     *    -> simple_idct_mmx -> x)
+     * - (-> decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant
+     *    -> simple_idct_mmx -> ...)
+     */
+    uint8_t idct_permutation[64];
+    enum idct_permutation_type perm_type;
+
+    int mpeg4_studio_profile;
+} IDCTDSPContext;
+
+void ff_put_pixels_clamped_c(const int16_t *block, uint8_t *av_restrict pixels,
+                             ptrdiff_t line_size);
+void ff_add_pixels_clamped_c(const int16_t *block, uint8_t *av_restrict pixels,
+                             ptrdiff_t line_size);
+
+void ff_idctdsp_init(IDCTDSPContext *c, AVCodecContext *avctx);
+
+void ff_idctdsp_init_aarch64(IDCTDSPContext *c, AVCodecContext *avctx,
+                             unsigned high_bit_depth);
+void ff_idctdsp_init_alpha(IDCTDSPContext *c, AVCodecContext *avctx,
+                           unsigned high_bit_depth);
+void ff_idctdsp_init_arm(IDCTDSPContext *c, AVCodecContext *avctx,
+                         unsigned high_bit_depth);
+void ff_idctdsp_init_ppc(IDCTDSPContext *c, AVCodecContext *avctx,
+                         unsigned high_bit_depth);
+void ff_idctdsp_init_x86(IDCTDSPContext *c, AVCodecContext *avctx,
+                         unsigned high_bit_depth);
+void ff_idctdsp_init_mips(IDCTDSPContext *c, AVCodecContext *avctx,
+                          unsigned high_bit_depth);
+
+#endif /* AVCODEC_IDCTDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/iirfilter.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/iirfilter.c
new file mode 100644
index 000000000..b20251582
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/iirfilter.c
@@ -0,0 +1,327 @@
+/*
+ * IIR filter
+ * Copyright (c) 2008 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * different IIR filters implementation
+ */
+
+#include <math.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/common.h"
+
+#include "iirfilter.h"
+
+/**
+ * IIR filter global parameters
+ */
+typedef struct FFIIRFilterCoeffs {
+    int   order;
+    float gain;
+    int   *cx;
+    float *cy;
+} FFIIRFilterCoeffs;
+
+/**
+ * IIR filter state
+ */
+typedef struct FFIIRFilterState {
+    float x[1];
+} FFIIRFilterState;
+
+/// maximum supported filter order
+#define MAXORDER 30
+
+static av_cold int butterworth_init_coeffs(void *avc,
+                                           struct FFIIRFilterCoeffs *c,
+                                           enum IIRFilterMode filt_mode,
+                                           int order, float cutoff_ratio,
+                                           float stopband)
+{
+    int i, j;
+    double wa;
+    double p[MAXORDER + 1][2];
+
+    if (filt_mode != FF_FILTER_MODE_LOWPASS) {
+        av_log(avc, AV_LOG_ERROR, "Butterworth filter currently only supports "
+                                  "low-pass filter mode\n");
+        return -1;
+    }
+    if (order & 1) {
+        av_log(avc, AV_LOG_ERROR, "Butterworth filter currently only supports "
+                                  "even filter orders\n");
+        return -1;
+    }
+
+    wa = 2 * tan(M_PI * 0.5 * cutoff_ratio);
+
+    c->cx[0] = 1;
+    for (i = 1; i < (order >> 1) + 1; i++)
+        c->cx[i] = c->cx[i - 1] * (order - i + 1LL) / i;
+
+    p[0][0] = 1.0;
+    p[0][1] = 0.0;
+    for (i = 1; i <= order; i++)
+        p[i][0] = p[i][1] = 0.0;
+    for (i = 0; i < order; i++) {
+        double zp[2];
+        double th = (i + (order >> 1) + 0.5) * M_PI / order;
+        double a_re, a_im, c_re, c_im;
+        zp[0] = cos(th) * wa;
+        zp[1] = sin(th) * wa;
+        a_re  = zp[0] + 2.0;
+        c_re  = zp[0] - 2.0;
+        a_im  =
+        c_im  = zp[1];
+        zp[0] = (a_re * c_re + a_im * c_im) / (c_re * c_re + c_im * c_im);
+        zp[1] = (a_im * c_re - a_re * c_im) / (c_re * c_re + c_im * c_im);
+
+        for (j = order; j >= 1; j--) {
+            a_re    = p[j][0];
+            a_im    = p[j][1];
+            p[j][0] = a_re * zp[0] - a_im * zp[1] + p[j - 1][0];
+            p[j][1] = a_re * zp[1] + a_im * zp[0] + p[j - 1][1];
+        }
+        a_re    = p[0][0] * zp[0] - p[0][1] * zp[1];
+        p[0][1] = p[0][0] * zp[1] + p[0][1] * zp[0];
+        p[0][0] = a_re;
+    }
+    c->gain = p[order][0];
+    for (i = 0; i < order; i++) {
+        c->gain += p[i][0];
+        c->cy[i] = (-p[i][0] * p[order][0] + -p[i][1] * p[order][1]) /
+                   (p[order][0] * p[order][0] + p[order][1] * p[order][1]);
+    }
+    c->gain /= 1 << order;
+
+    return 0;
+}
+
+static av_cold int biquad_init_coeffs(void *avc, struct FFIIRFilterCoeffs *c,
+                                      enum IIRFilterMode filt_mode, int order,
+                                      float cutoff_ratio, float stopband)
+{
+    double cos_w0, sin_w0;
+    double a0, x0, x1;
+
+    if (filt_mode != FF_FILTER_MODE_HIGHPASS &&
+        filt_mode != FF_FILTER_MODE_LOWPASS) {
+        av_log(avc, AV_LOG_ERROR, "Biquad filter currently only supports "
+                                  "high-pass and low-pass filter modes\n");
+        return -1;
+    }
+    if (order != 2) {
+        av_log(avc, AV_LOG_ERROR, "Biquad filter must have order of 2\n");
+        return -1;
+    }
+
+    cos_w0 = cos(M_PI * cutoff_ratio);
+    sin_w0 = sin(M_PI * cutoff_ratio);
+
+    a0 = 1.0 + (sin_w0 / 2.0);
+
+    if (filt_mode == FF_FILTER_MODE_HIGHPASS) {
+        c->gain  =  ((1.0 + cos_w0) / 2.0)  / a0;
+        x0       =  ((1.0 + cos_w0) / 2.0)  / a0;
+        x1       = (-(1.0 + cos_w0))        / a0;
+    } else { // FF_FILTER_MODE_LOWPASS
+        c->gain  =  ((1.0 - cos_w0) / 2.0)  / a0;
+        x0       =  ((1.0 - cos_w0) / 2.0)  / a0;
+        x1       =   (1.0 - cos_w0)         / a0;
+    }
+    c->cy[0] = (-1.0 + (sin_w0 / 2.0)) / a0;
+    c->cy[1] =  (2.0 *  cos_w0)        / a0;
+
+    // divide by gain to make the x coeffs integers.
+    // during filtering, the delay state will include the gain multiplication
+    c->cx[0] = lrintf(x0 / c->gain);
+    c->cx[1] = lrintf(x1 / c->gain);
+
+    return 0;
+}
+
+av_cold struct FFIIRFilterCoeffs *ff_iir_filter_init_coeffs(void *avc,
+                                                            enum IIRFilterType filt_type,
+                                                            enum IIRFilterMode filt_mode,
+                                                            int order, float cutoff_ratio,
+                                                            float stopband, float ripple)
+{
+    FFIIRFilterCoeffs *c;
+    int ret = 0;
+
+    if (order <= 0 || order > MAXORDER || cutoff_ratio >= 1.0)
+        return NULL;
+
+    FF_ALLOCZ_OR_GOTO(avc, c, sizeof(FFIIRFilterCoeffs),
+                      init_fail);
+    FF_ALLOC_OR_GOTO(avc, c->cx, sizeof(c->cx[0]) * ((order >> 1) + 1),
+                     init_fail);
+    FF_ALLOC_OR_GOTO(avc, c->cy, sizeof(c->cy[0]) * order,
+                     init_fail);
+    c->order = order;
+
+    switch (filt_type) {
+    case FF_FILTER_TYPE_BUTTERWORTH:
+        ret = butterworth_init_coeffs(avc, c, filt_mode, order, cutoff_ratio,
+                                      stopband);
+        break;
+    case FF_FILTER_TYPE_BIQUAD:
+        ret = biquad_init_coeffs(avc, c, filt_mode, order, cutoff_ratio,
+                                 stopband);
+        break;
+    default:
+        av_log(avc, AV_LOG_ERROR, "filter type is not currently implemented\n");
+        goto init_fail;
+    }
+
+    if (!ret)
+        return c;
+
+init_fail:
+    ff_iir_filter_free_coeffsp(&c);
+    return NULL;
+}
+
+av_cold struct FFIIRFilterState *ff_iir_filter_init_state(int order)
+{
+    FFIIRFilterState *s = av_mallocz(sizeof(FFIIRFilterState) + sizeof(s->x[0]) * (order - 1));
+    return s;
+}
+
+#define CONV_S16(dest, source) dest = av_clip_int16(lrintf(source));
+
+#define CONV_FLT(dest, source) dest = source;
+
+#define FILTER_BW_O4_1(i0, i1, i2, i3, fmt)             \
+    in = *src0    * c->gain  +                          \
+         c->cy[0] * s->x[i0] +                          \
+         c->cy[1] * s->x[i1] +                          \
+         c->cy[2] * s->x[i2] +                          \
+         c->cy[3] * s->x[i3];                           \
+    res = (s->x[i0] + in)       * 1 +                   \
+          (s->x[i1] + s->x[i3]) * 4 +                   \
+           s->x[i2]             * 6;                    \
+    CONV_ ## fmt(*dst0, res)                            \
+    s->x[i0] = in;                                      \
+    src0    += sstep;                                   \
+    dst0    += dstep;
+
+#define FILTER_BW_O4(type, fmt) {           \
+    int i;                                  \
+    const type *src0 = src;                 \
+    type       *dst0 = dst;                 \
+    for (i = 0; i < size; i += 4) {         \
+        float in, res;                      \
+        FILTER_BW_O4_1(0, 1, 2, 3, fmt);    \
+        FILTER_BW_O4_1(1, 2, 3, 0, fmt);    \
+        FILTER_BW_O4_1(2, 3, 0, 1, fmt);    \
+        FILTER_BW_O4_1(3, 0, 1, 2, fmt);    \
+    }                                       \
+}
+
+#define FILTER_DIRECT_FORM_II(type, fmt) {                                  \
+    int i;                                                                  \
+    const type *src0 = src;                                                 \
+    type       *dst0 = dst;                                                 \
+    for (i = 0; i < size; i++) {                                            \
+        int j;                                                              \
+        float in, res;                                                      \
+        in = *src0 * c->gain;                                               \
+        for (j = 0; j < c->order; j++)                                      \
+            in += c->cy[j] * s->x[j];                                       \
+        res = s->x[0] + in + s->x[c->order >> 1] * c->cx[c->order >> 1];    \
+        for (j = 1; j < c->order >> 1; j++)                                 \
+            res += (s->x[j] + s->x[c->order - j]) * c->cx[j];               \
+        for (j = 0; j < c->order - 1; j++)                                  \
+            s->x[j] = s->x[j + 1];                                          \
+        CONV_ ## fmt(*dst0, res)                                            \
+        s->x[c->order - 1] = in;                                            \
+        src0              += sstep;                                         \
+        dst0              += dstep;                                         \
+    }                                                                       \
+}
+
+#define FILTER_O2(type, fmt) {                                              \
+    int i;                                                                  \
+    const type *src0 = src;                                                 \
+    type       *dst0 = dst;                                                 \
+    for (i = 0; i < size; i++) {                                            \
+        float in = *src0   * c->gain  +                                     \
+                   s->x[0] * c->cy[0] +                                     \
+                   s->x[1] * c->cy[1];                                      \
+        CONV_ ## fmt(*dst0, s->x[0] + in + s->x[1] * c->cx[1])              \
+        s->x[0] = s->x[1];                                                  \
+        s->x[1] = in;                                                       \
+        src0   += sstep;                                                    \
+        dst0   += dstep;                                                    \
+    }                                                                       \
+}
+
+void ff_iir_filter(const struct FFIIRFilterCoeffs *c,
+                   struct FFIIRFilterState *s, int size,
+                   const int16_t *src, ptrdiff_t sstep,
+                   int16_t *dst, ptrdiff_t dstep)
+{
+    if (c->order == 2) {
+        FILTER_O2(int16_t, S16)
+    } else if (c->order == 4) {
+        FILTER_BW_O4(int16_t, S16)
+    } else {
+        FILTER_DIRECT_FORM_II(int16_t, S16)
+    }
+}
+
+void ff_iir_filter_flt(const struct FFIIRFilterCoeffs *c,
+                       struct FFIIRFilterState *s, int size,
+                       const float *src, ptrdiff_t sstep,
+                       float *dst, ptrdiff_t dstep)
+{
+    if (c->order == 2) {
+        FILTER_O2(float, FLT)
+    } else if (c->order == 4) {
+        FILTER_BW_O4(float, FLT)
+    } else {
+        FILTER_DIRECT_FORM_II(float, FLT)
+    }
+}
+
+av_cold void ff_iir_filter_free_statep(struct FFIIRFilterState **state)
+{
+    av_freep(state);
+}
+
+av_cold void ff_iir_filter_free_coeffsp(struct FFIIRFilterCoeffs **coeffsp)
+{
+    struct FFIIRFilterCoeffs *coeffs = *coeffsp;
+    if (coeffs) {
+        av_freep(&coeffs->cx);
+        av_freep(&coeffs->cy);
+    }
+    av_freep(coeffsp);
+}
+
+void ff_iir_filter_init(FFIIRFilterContext *f) {
+    f->filter_flt = ff_iir_filter_flt;
+
+    if (HAVE_MIPSFPU)
+        ff_iir_filter_init_mips(f);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/iirfilter.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/iirfilter.h
new file mode 100644
index 000000000..5ffa1ce53
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/iirfilter.h
@@ -0,0 +1,147 @@
+/*
+ * IIR filter
+ * Copyright (c) 2008 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * IIR filter interface
+ */
+
+#ifndef AVCODEC_IIRFILTER_H
+#define AVCODEC_IIRFILTER_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+struct FFIIRFilterCoeffs;
+struct FFIIRFilterState;
+
+enum IIRFilterType{
+    FF_FILTER_TYPE_BESSEL,
+    FF_FILTER_TYPE_BIQUAD,
+    FF_FILTER_TYPE_BUTTERWORTH,
+    FF_FILTER_TYPE_CHEBYSHEV,
+    FF_FILTER_TYPE_ELLIPTIC,
+};
+
+enum IIRFilterMode{
+    FF_FILTER_MODE_LOWPASS,
+    FF_FILTER_MODE_HIGHPASS,
+    FF_FILTER_MODE_BANDPASS,
+    FF_FILTER_MODE_BANDSTOP,
+};
+
+typedef struct FFIIRFilterContext {
+    /**
+    * Perform IIR filtering on floating-point input samples.
+    *
+    * @param coeffs pointer to filter coefficients
+    * @param state  pointer to filter state
+    * @param size   input length
+    * @param src    source samples
+    * @param sstep  source stride
+    * @param dst    filtered samples (destination may be the same as input)
+    * @param dstep  destination stride
+    */
+    void (*filter_flt)(const struct FFIIRFilterCoeffs *coeffs,
+                        struct FFIIRFilterState *state, int size,
+                        const float *src, ptrdiff_t sstep, float *dst, ptrdiff_t dstep);
+} FFIIRFilterContext;
+
+/**
+ * Initialize FFIIRFilterContext
+ */
+void ff_iir_filter_init(FFIIRFilterContext *f);
+void ff_iir_filter_init_mips(FFIIRFilterContext *f);
+
+/**
+ * Initialize filter coefficients.
+ *
+ * @param avc          a pointer to an arbitrary struct of which the first
+ *                     field is a pointer to an AVClass struct
+ * @param filt_type    filter type (e.g. Butterworth)
+ * @param filt_mode    filter mode (e.g. lowpass)
+ * @param order        filter order
+ * @param cutoff_ratio cutoff to input frequency ratio
+ * @param stopband     stopband to input frequency ratio (used by bandpass and bandstop filter modes)
+ * @param ripple       ripple factor (used only in Chebyshev filters)
+ *
+ * @return pointer to filter coefficients structure or NULL if filter cannot be created
+ */
+struct FFIIRFilterCoeffs* ff_iir_filter_init_coeffs(void *avc,
+                                                enum IIRFilterType filt_type,
+                                                enum IIRFilterMode filt_mode,
+                                                int order, float cutoff_ratio,
+                                                float stopband, float ripple);
+
+/**
+ * Create new filter state.
+ *
+ * @param order filter order
+ *
+ * @return pointer to new filter state or NULL if state creation fails
+ */
+struct FFIIRFilterState* ff_iir_filter_init_state(int order);
+
+/**
+ * Free filter coefficients.
+ *
+ * @param coeffs pointer allocated with ff_iir_filter_init_coeffs()
+ */
+void ff_iir_filter_free_coeffsp(struct FFIIRFilterCoeffs **coeffs);
+
+/**
+ * Free and zero filter state.
+ *
+ * @param state pointer to pointer allocated with ff_iir_filter_init_state()
+ */
+void ff_iir_filter_free_statep(struct FFIIRFilterState **state);
+
+/**
+ * Perform IIR filtering on signed 16-bit input samples.
+ *
+ * @param coeffs pointer to filter coefficients
+ * @param state  pointer to filter state
+ * @param size   input length
+ * @param src    source samples
+ * @param sstep  source stride
+ * @param dst    filtered samples (destination may be the same as input)
+ * @param dstep  destination stride
+ */
+void ff_iir_filter(const struct FFIIRFilterCoeffs *coeffs, struct FFIIRFilterState *state,
+                   int size, const int16_t *src, ptrdiff_t sstep, int16_t *dst, ptrdiff_t dstep);
+
+/**
+ * Perform IIR filtering on floating-point input samples.
+ *
+ * @param coeffs pointer to filter coefficients
+ * @param state  pointer to filter state
+ * @param size   input length
+ * @param src    source samples
+ * @param sstep  source stride
+ * @param dst    filtered samples (destination may be the same as input)
+ * @param dstep  destination stride
+ */
+void ff_iir_filter_flt(const struct FFIIRFilterCoeffs *coeffs,
+                       struct FFIIRFilterState *state, int size,
+                       const float *src, ptrdiff_t sstep,
+                       float *dst, ptrdiff_t dstep);
+
+#endif /* AVCODEC_IIRFILTER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/imgconvert.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/imgconvert.c
new file mode 100644
index 000000000..1fd636c83
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/imgconvert.c
@@ -0,0 +1,232 @@
+/*
+ * Misc image conversion routines
+ * Copyright (c) 2001, 2002, 2003 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * misc image conversion routines
+ */
+
+#include "avcodec.h"
+#include "internal.h"
+#include "mathops.h"
+#include "libavutil/avassert.h"
+#include "libavutil/colorspace.h"
+#include "libavutil/common.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/internal.h"
+#include "libavutil/imgutils.h"
+
+#if FF_API_GETCHROMA
+void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    av_assert0(desc);
+    *h_shift = desc->log2_chroma_w;
+    *v_shift = desc->log2_chroma_h;
+}
+#endif
+
+int avcodec_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt,
+                             enum AVPixelFormat src_pix_fmt,
+                             int has_alpha)
+{
+    return av_get_pix_fmt_loss(dst_pix_fmt, src_pix_fmt, has_alpha);
+}
+
+enum AVPixelFormat avcodec_find_best_pix_fmt_of_2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
+                                            enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)
+{
+    return av_find_best_pix_fmt_of_2(dst_pix_fmt1, dst_pix_fmt2, src_pix_fmt, has_alpha, loss_ptr);
+}
+
+enum AVPixelFormat avcodec_find_best_pix_fmt2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
+                                            enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)
+{
+    return avcodec_find_best_pix_fmt_of_2(dst_pix_fmt1, dst_pix_fmt2, src_pix_fmt, has_alpha, loss_ptr);
+}
+
+enum AVPixelFormat avcodec_find_best_pix_fmt_of_list(const enum AVPixelFormat *pix_fmt_list,
+                                            enum AVPixelFormat src_pix_fmt,
+                                            int has_alpha, int *loss_ptr){
+    int i;
+
+    enum AVPixelFormat best = AV_PIX_FMT_NONE;
+    int loss;
+
+    for (i=0; pix_fmt_list[i] != AV_PIX_FMT_NONE; i++) {
+        loss = loss_ptr ? *loss_ptr : 0;
+        best = avcodec_find_best_pix_fmt_of_2(best, pix_fmt_list[i], src_pix_fmt, has_alpha, &loss);
+    }
+
+    if (loss_ptr)
+        *loss_ptr = loss;
+    return best;
+}
+
+#if FF_API_AVPICTURE
+FF_DISABLE_DEPRECATION_WARNINGS
+/* return true if yuv planar */
+static inline int is_yuv_planar(const AVPixFmtDescriptor *desc)
+{
+    int i;
+    int planes[4] = { 0 };
+
+    if (     desc->flags & AV_PIX_FMT_FLAG_RGB
+        || !(desc->flags & AV_PIX_FMT_FLAG_PLANAR))
+        return 0;
+
+    /* set the used planes */
+    for (i = 0; i < desc->nb_components; i++)
+        planes[desc->comp[i].plane] = 1;
+
+    /* if there is an unused plane, the format is not planar */
+    for (i = 0; i < desc->nb_components; i++)
+        if (!planes[i])
+            return 0;
+    return 1;
+}
+
+int av_picture_crop(AVPicture *dst, const AVPicture *src,
+                    enum AVPixelFormat pix_fmt, int top_band, int left_band)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    int y_shift;
+    int x_shift;
+    int max_step[4];
+
+    if (pix_fmt < 0 || pix_fmt >= AV_PIX_FMT_NB)
+        return -1;
+
+    y_shift = desc->log2_chroma_h;
+    x_shift = desc->log2_chroma_w;
+    av_image_fill_max_pixsteps(max_step, NULL, desc);
+
+    if (is_yuv_planar(desc)) {
+    dst->data[0] = src->data[0] + (top_band * src->linesize[0]) + left_band;
+    dst->data[1] = src->data[1] + ((top_band >> y_shift) * src->linesize[1]) + (left_band >> x_shift);
+    dst->data[2] = src->data[2] + ((top_band >> y_shift) * src->linesize[2]) + (left_band >> x_shift);
+    } else{
+        if(top_band % (1<<y_shift) || left_band % (1<<x_shift))
+            return -1;
+        dst->data[0] = src->data[0] + (top_band * src->linesize[0]) + (left_band * max_step[0]);
+    }
+
+    dst->linesize[0] = src->linesize[0];
+    dst->linesize[1] = src->linesize[1];
+    dst->linesize[2] = src->linesize[2];
+    return 0;
+}
+
+int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width,
+                   enum AVPixelFormat pix_fmt, int padtop, int padbottom, int padleft, int padright,
+            int *color)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    uint8_t *optr;
+    int y_shift;
+    int x_shift;
+    int yheight;
+    int i, y;
+    int max_step[4];
+
+    if (pix_fmt < 0 || pix_fmt >= AV_PIX_FMT_NB)
+        return -1;
+
+    if (!is_yuv_planar(desc)) {
+        if (src)
+            return -1; //TODO: Not yet implemented
+
+        av_image_fill_max_pixsteps(max_step, NULL, desc);
+
+        if (padtop || padleft) {
+            memset(dst->data[0], color[0],
+                    dst->linesize[0] * padtop + (padleft * max_step[0]));
+        }
+
+        if (padleft || padright) {
+            optr = dst->data[0] + dst->linesize[0] * padtop +
+                    (dst->linesize[0] - (padright * max_step[0]));
+            yheight = height - 1 - (padtop + padbottom);
+            for (y = 0; y < yheight; y++) {
+                memset(optr, color[0], (padleft + padright) * max_step[0]);
+                optr += dst->linesize[0];
+            }
+        }
+
+        if (padbottom || padright) {
+            optr = dst->data[0] + dst->linesize[0] * (height - padbottom) -
+                    (padright * max_step[0]);
+            memset(optr, color[0], dst->linesize[0] * padbottom +
+                    (padright * max_step[0]));
+        }
+
+        return 0;
+    }
+
+    for (i = 0; i < 3; i++) {
+        x_shift = i ? desc->log2_chroma_w : 0;
+        y_shift = i ? desc->log2_chroma_h : 0;
+
+        if (padtop || padleft) {
+            memset(dst->data[i], color[i],
+                dst->linesize[i] * (padtop >> y_shift) + (padleft >> x_shift));
+        }
+
+        if (padleft || padright) {
+            optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
+                (dst->linesize[i] - (padright >> x_shift));
+            yheight = (height - 1 - (padtop + padbottom)) >> y_shift;
+            for (y = 0; y < yheight; y++) {
+                memset(optr, color[i], (padleft + padright) >> x_shift);
+                optr += dst->linesize[i];
+            }
+        }
+
+        if (src) { /* first line */
+            uint8_t *iptr = src->data[i];
+            optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
+                    (padleft >> x_shift);
+            memcpy(optr, iptr, (width - padleft - padright) >> x_shift);
+            iptr += src->linesize[i];
+            optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
+                (dst->linesize[i] - (padright >> x_shift));
+            yheight = (height - 1 - (padtop + padbottom)) >> y_shift;
+            for (y = 0; y < yheight; y++) {
+                memset(optr, color[i], (padleft + padright) >> x_shift);
+                memcpy(optr + ((padleft + padright) >> x_shift), iptr,
+                       (width - padleft - padright) >> x_shift);
+                iptr += src->linesize[i];
+                optr += dst->linesize[i];
+            }
+        }
+
+        if (padbottom || padright) {
+            optr = dst->data[i] + dst->linesize[i] *
+                ((height - padbottom) >> y_shift) - (padright >> x_shift);
+            memset(optr, color[i],dst->linesize[i] *
+                (padbottom >> y_shift) + (padright >> x_shift));
+        }
+    }
+
+    return 0;
+}
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif /* FF_API_AVPICTURE */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/internal.h
new file mode 100644
index 000000000..5096ffa1d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/internal.h
@@ -0,0 +1,433 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * common internal api header.
+ */
+
+#ifndef AVCODEC_INTERNAL_H
+#define AVCODEC_INTERNAL_H
+
+#include <stdint.h>
+
+#include "libavutil/buffer.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/pixfmt.h"
+#include "avcodec.h"
+#include "config.h"
+
+/**
+ * The codec does not modify any global variables in the init function,
+ * allowing to call the init function without locking any global mutexes.
+ */
+#define FF_CODEC_CAP_INIT_THREADSAFE        (1 << 0)
+/**
+ * The codec allows calling the close function for deallocation even if
+ * the init function returned a failure. Without this capability flag, a
+ * codec does such cleanup internally when returning failures from the
+ * init function and does not expect the close function to be called at
+ * all.
+ */
+#define FF_CODEC_CAP_INIT_CLEANUP           (1 << 1)
+/**
+ * Decoders marked with FF_CODEC_CAP_SETS_PKT_DTS want to set
+ * AVFrame.pkt_dts manually. If the flag is set, decode.c won't overwrite
+ * this field. If it's unset, decode.c tries to guess the pkt_dts field
+ * from the input AVPacket.
+ */
+#define FF_CODEC_CAP_SETS_PKT_DTS           (1 << 2)
+/**
+ * The decoder extracts and fills its parameters even if the frame is
+ * skipped due to the skip_frame setting.
+ */
+#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM  (1 << 3)
+/**
+ * The decoder sets the cropping fields in the output frames manually.
+ * If this cap is set, the generic code will initialize output frame
+ * dimensions to coded rather than display values.
+ */
+#define FF_CODEC_CAP_EXPORTS_CROPPING       (1 << 4)
+/**
+ * Codec initializes slice-based threading with a main function
+ */
+#define FF_CODEC_CAP_SLICE_THREAD_HAS_MF    (1 << 5)
+
+#ifdef TRACE
+#   define ff_tlog(ctx, ...) av_log(ctx, AV_LOG_TRACE, __VA_ARGS__)
+#else
+#   define ff_tlog(ctx, ...) do { } while(0)
+#endif
+
+
+#define FF_DEFAULT_QUANT_BIAS 999999
+
+#define FF_QSCALE_TYPE_MPEG1 0
+#define FF_QSCALE_TYPE_MPEG2 1
+#define FF_QSCALE_TYPE_H264  2
+#define FF_QSCALE_TYPE_VP56  3
+
+#define FF_SANE_NB_CHANNELS 256U
+
+#define FF_SIGNBIT(x) ((x) >> CHAR_BIT * sizeof(x) - 1)
+
+#if HAVE_SIMD_ALIGN_64
+#   define STRIDE_ALIGN 64 /* AVX-512 */
+#elif HAVE_SIMD_ALIGN_32
+#   define STRIDE_ALIGN 32
+#elif HAVE_SIMD_ALIGN_16
+#   define STRIDE_ALIGN 16
+#else
+#   define STRIDE_ALIGN 8
+#endif
+
+typedef struct FramePool {
+    /**
+     * Pools for each data plane. For audio all the planes have the same size,
+     * so only pools[0] is used.
+     */
+    AVBufferPool *pools[4];
+
+    /*
+     * Pool parameters
+     */
+    int format;
+    int width, height;
+    int stride_align[AV_NUM_DATA_POINTERS];
+    int linesize[4];
+    int planes;
+    int channels;
+    int samples;
+} FramePool;
+
+typedef struct DecodeSimpleContext {
+    AVPacket *in_pkt;
+    AVFrame  *out_frame;
+} DecodeSimpleContext;
+
+typedef struct DecodeFilterContext {
+    AVBSFContext **bsfs;
+    int         nb_bsfs;
+} DecodeFilterContext;
+
+typedef struct AVCodecInternal {
+    /**
+     * Whether the parent AVCodecContext is a copy of the context which had
+     * init() called on it.
+     * This is used by multithreading - shared tables and picture pointers
+     * should be freed from the original context only.
+     */
+    int is_copy;
+
+    /**
+     * Whether to allocate progress for frame threading.
+     *
+     * The codec must set it to 1 if it uses ff_thread_await/report_progress(),
+     * then progress will be allocated in ff_thread_get_buffer(). The frames
+     * then MUST be freed with ff_thread_release_buffer().
+     *
+     * If the codec does not need to call the progress functions (there are no
+     * dependencies between the frames), it should leave this at 0. Then it can
+     * decode straight to the user-provided frames (which the user will then
+     * free with av_frame_unref()), there is no need to call
+     * ff_thread_release_buffer().
+     */
+    int allocate_progress;
+
+    /**
+     * An audio frame with less than required samples has been submitted and
+     * padded with silence. Reject all subsequent frames.
+     */
+    int last_audio_frame;
+
+    AVFrame *to_free;
+
+    FramePool *pool;
+
+    void *thread_ctx;
+
+    DecodeSimpleContext ds;
+    DecodeFilterContext filter;
+
+    /**
+     * Properties (timestamps+side data) extracted from the last packet passed
+     * for decoding.
+     */
+    AVPacket *last_pkt_props;
+
+    /**
+     * temporary buffer used for encoders to store their bitstream
+     */
+    uint8_t *byte_buffer;
+    unsigned int byte_buffer_size;
+
+    void *frame_thread_encoder;
+
+    /**
+     * Number of audio samples to skip at the start of the next decoded frame
+     */
+    int skip_samples;
+
+    /**
+     * hwaccel-specific private data
+     */
+    void *hwaccel_priv_data;
+
+    /**
+     * checks API usage: after codec draining, flush is required to resume operation
+     */
+    int draining;
+
+    /**
+     * buffers for using new encode/decode API through legacy API
+     */
+    AVPacket *buffer_pkt;
+    int buffer_pkt_valid; // encoding: packet without data can be valid
+    AVFrame *buffer_frame;
+    int draining_done;
+    /* set to 1 when the caller is using the old decoding API */
+    int compat_decode;
+    int compat_decode_warned;
+    /* this variable is set by the decoder internals to signal to the old
+     * API compat wrappers the amount of data consumed from the last packet */
+    size_t compat_decode_consumed;
+    /* when a partial packet has been consumed, this stores the remaining size
+     * of the packet (that should be submitted in the next decode call */
+    size_t compat_decode_partial_size;
+    AVFrame *compat_decode_frame;
+
+    int showed_multi_packet_warning;
+
+    int skip_samples_multiplier;
+
+    /* to prevent infinite loop on errors when draining */
+    int nb_draining_errors;
+
+    /* used when avctx flag AV_CODEC_FLAG_DROPCHANGED is set */
+    int changed_frames_dropped;
+    int initial_format;
+    int initial_width, initial_height;
+    int initial_sample_rate;
+    int initial_channels;
+    uint64_t initial_channel_layout;
+} AVCodecInternal;
+
+struct AVCodecDefault {
+    const uint8_t *key;
+    const uint8_t *value;
+};
+
+extern const uint8_t ff_log2_run[41];
+
+/**
+ * Return the index into tab at which {a,b} match elements {[0],[1]} of tab.
+ * If there is no such matching pair then size is returned.
+ */
+int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b);
+
+unsigned int avpriv_toupper4(unsigned int x);
+
+void ff_color_frame(AVFrame *frame, const int color[4]);
+
+/**
+ * Maximum size in bytes of extradata.
+ * This value was chosen such that every bit of the buffer is
+ * addressable by a 32-bit signed integer as used by get_bits.
+ */
+#define FF_MAX_EXTRADATA_SIZE ((1 << 28) - AV_INPUT_BUFFER_PADDING_SIZE)
+
+/**
+ * Check AVPacket size and/or allocate data.
+ *
+ * Encoders supporting AVCodec.encode2() can use this as a convenience to
+ * ensure the output packet data is large enough, whether provided by the user
+ * or allocated in this function.
+ *
+ * @param avctx   the AVCodecContext of the encoder
+ * @param avpkt   the AVPacket
+ *                If avpkt->data is already set, avpkt->size is checked
+ *                to ensure it is large enough.
+ *                If avpkt->data is NULL, a new buffer is allocated.
+ *                avpkt->size is set to the specified size.
+ *                All other AVPacket fields will be reset with av_init_packet().
+ * @param size    the minimum required packet size
+ * @param min_size This is a hint to the allocation algorithm, which indicates
+ *                to what minimal size the caller might later shrink the packet
+ *                to. Encoders often allocate packets which are larger than the
+ *                amount of data that is written into them as the exact amount is
+ *                not known at the time of allocation. min_size represents the
+ *                size a packet might be shrunk to by the caller. Can be set to
+ *                0. setting this roughly correctly allows the allocation code
+ *                to choose between several allocation strategies to improve
+ *                speed slightly.
+ * @return        non negative on success, negative error code on failure
+ */
+int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size);
+
+attribute_deprecated int ff_alloc_packet(AVPacket *avpkt, int size);
+
+/**
+ * Rescale from sample rate to AVCodecContext.time_base.
+ */
+static av_always_inline int64_t ff_samples_to_time_base(AVCodecContext *avctx,
+                                                        int64_t samples)
+{
+    if(samples == AV_NOPTS_VALUE)
+        return AV_NOPTS_VALUE;
+    return av_rescale_q(samples, (AVRational){ 1, avctx->sample_rate },
+                        avctx->time_base);
+}
+
+/**
+ * 2^(x) for integer x
+ * @return correctly rounded float
+ */
+static av_always_inline float ff_exp2fi(int x) {
+    /* Normal range */
+    if (-126 <= x && x <= 128)
+        return av_int2float((x+127) << 23);
+    /* Too large */
+    else if (x > 128)
+        return INFINITY;
+    /* Subnormal numbers */
+    else if (x > -150)
+        return av_int2float(1 << (x+149));
+    /* Negligibly small */
+    else
+        return 0;
+}
+
+/**
+ * Get a buffer for a frame. This is a wrapper around
+ * AVCodecContext.get_buffer() and should be used instead calling get_buffer()
+ * directly.
+ */
+int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags);
+
+/**
+ * Identical in function to av_frame_make_writable(), except it uses
+ * ff_get_buffer() to allocate the buffer when needed.
+ */
+int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame);
+
+int ff_thread_can_start_frame(AVCodecContext *avctx);
+
+int avpriv_h264_has_num_reorder_frames(AVCodecContext *avctx);
+
+/**
+ * Call avcodec_open2 recursively by decrementing counter, unlocking mutex,
+ * calling the function and then restoring again. Assumes the mutex is
+ * already locked
+ */
+int ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options);
+
+/**
+ * Finalize buf into extradata and set its size appropriately.
+ */
+int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf);
+
+const uint8_t *avpriv_find_start_code(const uint8_t *p,
+                                      const uint8_t *end,
+                                      uint32_t *state);
+
+int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec);
+
+/**
+ * Check that the provided frame dimensions are valid and set them on the codec
+ * context.
+ */
+int ff_set_dimensions(AVCodecContext *s, int width, int height);
+
+/**
+ * Check that the provided sample aspect ratio is valid and set it on the codec
+ * context.
+ */
+int ff_set_sar(AVCodecContext *avctx, AVRational sar);
+
+/**
+ * Add or update AV_FRAME_DATA_MATRIXENCODING side data.
+ */
+int ff_side_data_update_matrix_encoding(AVFrame *frame,
+                                        enum AVMatrixEncoding matrix_encoding);
+
+/**
+ * Select the (possibly hardware accelerated) pixel format.
+ * This is a wrapper around AVCodecContext.get_format() and should be used
+ * instead of calling get_format() directly.
+ *
+ * The list of pixel formats must contain at least one valid entry, and is
+ * terminated with AV_PIX_FMT_NONE.  If it is possible to decode to software,
+ * the last entry in the list must be the most accurate software format.
+ * If it is not possible to decode to software, AVCodecContext.sw_pix_fmt
+ * must be set before calling this function.
+ */
+int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt);
+
+/**
+ * Set various frame properties from the codec context / packet data.
+ */
+int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame);
+
+/**
+ * Add a CPB properties side data to an encoding context.
+ */
+AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx);
+
+int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type);
+
+/**
+ * Check AVFrame for A53 side data and allocate and fill SEI message with A53 info
+ *
+ * @param frame      Raw frame to get A53 side data from
+ * @param prefix_len Number of bytes to allocate before SEI message
+ * @param data       Pointer to a variable to store allocated memory
+ *                   Upon return the variable will hold NULL on error or if frame has no A53 info.
+ *                   Otherwise it will point to prefix_len uninitialized bytes followed by
+ *                   *sei_size SEI message
+ * @param sei_size   Pointer to a variable to store generated SEI message length
+ * @return           Zero on success, negative error code on failure
+ */
+int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
+                     void **data, size_t *sei_size);
+
+/**
+ * Get an estimated video bitrate based on frame size, frame rate and coded
+ * bits per pixel.
+ */
+int64_t ff_guess_coded_bitrate(AVCodecContext *avctx);
+
+/**
+ * Check if a value is in the list. If not, return the default value
+ *
+ * @param ctx                Context for the log msg
+ * @param val_name           Name of the checked value, for log msg
+ * @param array_valid_values Array of valid int, ended with INT_MAX
+ * @param default_value      Value return if checked value is not in the array
+ * @return                   Value or default_value.
+ */
+int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
+                                const int * array_valid_values, int default_value);
+
+#if defined(_WIN32) && CONFIG_SHARED && !defined(BUILDING_avcodec)
+#    define av_export_avcodec __declspec(dllimport)
+#else
+#    define av_export_avcodec
+#endif
+
+#endif /* AVCODEC_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/jni.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/jni.c
new file mode 100644
index 000000000..85dcf2aba
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/jni.c
@@ -0,0 +1,79 @@
+/*
+ * JNI public API functions
+ *
+ * Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+
+#include "libavutil/error.h"
+#include "jni.h"
+
+#if CONFIG_JNI
+#include <jni.h>
+#include <pthread.h>
+
+#include "libavutil/log.h"
+#include "ffjni.h"
+
+void *java_vm;
+pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+int av_jni_set_java_vm(void *vm, void *log_ctx)
+{
+    int ret = 0;
+
+    pthread_mutex_lock(&lock);
+    if (java_vm == NULL) {
+        java_vm = vm;
+    } else if (java_vm != vm) {
+        ret = AVERROR(EINVAL);
+        av_log(log_ctx, AV_LOG_ERROR, "A Java virtual machine has already been set");
+    }
+    pthread_mutex_unlock(&lock);
+
+    return ret;
+}
+
+void *av_jni_get_java_vm(void *log_ctx)
+{
+    void *vm;
+
+    pthread_mutex_lock(&lock);
+    vm = java_vm;
+    pthread_mutex_unlock(&lock);
+
+    return vm;
+}
+
+#else
+
+int av_jni_set_java_vm(void *vm, void *log_ctx)
+{
+    return AVERROR(ENOSYS);
+}
+
+void *av_jni_get_java_vm(void *log_ctx)
+{
+    return NULL;
+}
+
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/jni.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/jni.h
new file mode 100644
index 000000000..dd99e9261
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/jni.h
@@ -0,0 +1,46 @@
+/*
+ * JNI public API functions
+ *
+ * Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_JNI_H
+#define AVCODEC_JNI_H
+
+/*
+ * Manually set a Java virtual machine which will be used to retrieve the JNI
+ * environment. Once a Java VM is set it cannot be changed afterwards, meaning
+ * you can call multiple times av_jni_set_java_vm with the same Java VM pointer
+ * however it will error out if you try to set a different Java VM.
+ *
+ * @param vm Java virtual machine
+ * @param log_ctx context used for logging, can be NULL
+ * @return 0 on success, < 0 otherwise
+ */
+int av_jni_set_java_vm(void *vm, void *log_ctx);
+
+/*
+ * Get the Java virtual machine which has been set with av_jni_set_java_vm.
+ *
+ * @param vm Java virtual machine
+ * @return a pointer to the Java virtual machine
+ */
+void *av_jni_get_java_vm(void *log_ctx);
+
+#endif /* AVCODEC_JNI_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/kbdwin.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/kbdwin.c
new file mode 100644
index 000000000..bf32aeb31
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/kbdwin.c
@@ -0,0 +1,57 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/avassert.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/attributes.h"
+#include "kbdwin.h"
+
+#define BESSEL_I0_ITER 50 // default: 50 iterations of Bessel I0 approximation
+
+av_cold void ff_kbd_window_init(float *window, float alpha, int n)
+{
+   int i, j;
+   double sum = 0.0, bessel, tmp;
+   double local_window[FF_KBD_WINDOW_MAX];
+   double alpha2 = (alpha * M_PI / n) * (alpha * M_PI / n);
+
+   av_assert0(n <= FF_KBD_WINDOW_MAX);
+
+   for (i = 0; i < n; i++) {
+       tmp = i * (n - i) * alpha2;
+       bessel = 1.0;
+       for (j = BESSEL_I0_ITER; j > 0; j--)
+           bessel = bessel * tmp / (j * j) + 1;
+       sum += bessel;
+       local_window[i] = sum;
+   }
+
+   sum++;
+   for (i = 0; i < n; i++)
+       window[i] = sqrt(local_window[i] / sum);
+}
+
+av_cold void ff_kbd_window_init_fixed(int32_t *window, float alpha, int n)
+{
+    int i;
+    float local_window[FF_KBD_WINDOW_MAX];
+
+    ff_kbd_window_init(local_window, alpha, n);
+    for (i = 0; i < n; i++)
+        window[i] = (int)floor(2147483647.0 * local_window[i] + 0.5);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/kbdwin.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/kbdwin.h
new file mode 100644
index 000000000..4185c4206
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/kbdwin.h
@@ -0,0 +1,38 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_KBDWIN_H
+#define AVCODEC_KBDWIN_H
+
+#include <stdint.h>
+
+/**
+ * Maximum window size for ff_kbd_window_init.
+ */
+#define FF_KBD_WINDOW_MAX 1024
+
+/**
+ * Generate a Kaiser-Bessel Derived Window.
+ * @param   window  pointer to half window
+ * @param   alpha   determines window shape
+ * @param   n       size of half window, max FF_KBD_WINDOW_MAX
+ */
+void ff_kbd_window_init(float *window, float alpha, int n);
+void ff_kbd_window_init_fixed(int32_t *window, float alpha, int n);
+
+#endif /* AVCODEC_KBDWIN_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/latm_parser.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/latm_parser.c
new file mode 100644
index 000000000..3820f58d6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/latm_parser.c
@@ -0,0 +1,112 @@
+/*
+ * copyright (c) 2008 Paul Kendall <paul@kcbbs.gen.nz>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC LATM parser
+ */
+
+#include <stdint.h>
+#include "parser.h"
+
+#define LATM_HEADER     0x56e000        // 0x2b7 (11 bits)
+#define LATM_MASK       0xFFE000        // top 11 bits
+#define LATM_SIZE_MASK  0x001FFF        // bottom 13 bits
+
+typedef struct LATMParseContext{
+    ParseContext pc;
+    int count;
+} LATMParseContext;
+
+/**
+ * Find the end of the current frame in the bitstream.
+ * @return the position of the first byte of the next frame, or -1
+ */
+static int latm_find_frame_end(AVCodecParserContext *s1, const uint8_t *buf,
+                               int buf_size)
+{
+    LATMParseContext *s = s1->priv_data;
+    ParseContext *pc    = &s->pc;
+    int pic_found, i;
+    uint32_t state;
+
+    pic_found = pc->frame_start_found;
+    state     = pc->state;
+
+    if (!pic_found) {
+        for (i = 0; i < buf_size; i++) {
+            state = (state<<8) | buf[i];
+            if ((state & LATM_MASK) == LATM_HEADER) {
+                i++;
+                s->count  = -i;
+                pic_found = 1;
+                break;
+            }
+        }
+    }
+
+    if (pic_found) {
+        /* EOF considered as end of frame */
+        if (buf_size == 0)
+            return 0;
+        if ((state & LATM_SIZE_MASK) - s->count <= buf_size) {
+            pc->frame_start_found = 0;
+            pc->state             = -1;
+            return (state & LATM_SIZE_MASK) - s->count;
+        }
+    }
+
+    s->count             += buf_size;
+    pc->frame_start_found = pic_found;
+    pc->state             = state;
+
+    return END_NOT_FOUND;
+}
+
+static int latm_parse(AVCodecParserContext *s1, AVCodecContext *avctx,
+                      const uint8_t **poutbuf, int *poutbuf_size,
+                      const uint8_t *buf, int buf_size)
+{
+    LATMParseContext *s = s1->priv_data;
+    ParseContext *pc    = &s->pc;
+    int next;
+
+    if (s1->flags & PARSER_FLAG_COMPLETE_FRAMES) {
+        next = buf_size;
+    } else {
+        next = latm_find_frame_end(s1, buf, buf_size);
+
+        if (ff_combine_frame(pc, next, &buf, &buf_size) < 0) {
+            *poutbuf      = NULL;
+            *poutbuf_size = 0;
+            return buf_size;
+        }
+    }
+    *poutbuf      = buf;
+    *poutbuf_size = buf_size;
+    return next;
+}
+
+AVCodecParser ff_aac_latm_parser = {
+    .codec_ids      = { AV_CODEC_ID_AAC_LATM },
+    .priv_data_size = sizeof(LATMParseContext),
+    .parser_parse   = latm_parse,
+    .parser_close   = ff_parse_close
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/libopus.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/libopus.c
new file mode 100644
index 000000000..16395c73d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/libopus.c
@@ -0,0 +1,48 @@
+/*
+ * libopus encoder/decoder common code
+ * Copyright (c) 2012 Nicolas George
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <opus_defines.h>
+
+#include "libavutil/common.h"
+#include "libavutil/error.h"
+#include "libopus.h"
+
+int ff_opus_error_to_averror(int err)
+{
+    switch (err) {
+    case OPUS_BAD_ARG:
+        return AVERROR(EINVAL);
+    case OPUS_BUFFER_TOO_SMALL:
+        return AVERROR_UNKNOWN;
+    case OPUS_INTERNAL_ERROR:
+        return AVERROR(EFAULT);
+    case OPUS_INVALID_PACKET:
+        return AVERROR_INVALIDDATA;
+    case OPUS_UNIMPLEMENTED:
+        return AVERROR(ENOSYS);
+    case OPUS_INVALID_STATE:
+        return AVERROR_UNKNOWN;
+    case OPUS_ALLOC_FAIL:
+        return AVERROR(ENOMEM);
+    default:
+        return AVERROR(EINVAL);
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/libopus.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/libopus.h
new file mode 100644
index 000000000..a8223d1d6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/libopus.h
@@ -0,0 +1,27 @@
+/*
+ * libopus encoder/decoder common code
+ * Copyright (c) 2012 Nicolas George
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_LIBOPUS_H
+#define AVCODEC_LIBOPUS_H
+
+int ff_opus_error_to_averror(int err);
+
+#endif /* AVCODEC_LIBOPUS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/libopusdec.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/libopusdec.c
new file mode 100644
index 000000000..1724a4990
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/libopusdec.c
@@ -0,0 +1,245 @@
+/*
+ * Opus decoder using libopus
+ * Copyright (c) 2012 Nicolas George
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <opus.h>
+#include <opus_multistream.h>
+
+#include "libavutil/internal.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/ffmath.h"
+#include "libavutil/opt.h"
+
+#include "avcodec.h"
+#include "internal.h"
+#include "vorbis.h"
+#include "mathops.h"
+#include "libopus.h"
+
+struct libopus_context {
+    AVClass *class;
+    OpusMSDecoder *dec;
+    int pre_skip;
+#ifndef OPUS_SET_GAIN
+    union { int i; double d; } gain;
+#endif
+#ifdef OPUS_SET_PHASE_INVERSION_DISABLED_REQUEST
+    int apply_phase_inv;
+#endif
+};
+
+#define OPUS_HEAD_SIZE 19
+
+static av_cold int libopus_decode_init(AVCodecContext *avc)
+{
+    struct libopus_context *opus = avc->priv_data;
+    int ret, channel_map = 0, gain_db = 0, nb_streams, nb_coupled;
+    uint8_t mapping_arr[8] = { 0, 1 }, *mapping;
+
+    avc->channels = avc->extradata_size >= 10 ? avc->extradata[9] : (avc->channels == 1) ? 1 : 2;
+    if (avc->channels <= 0) {
+        av_log(avc, AV_LOG_WARNING,
+               "Invalid number of channels %d, defaulting to stereo\n", avc->channels);
+        avc->channels = 2;
+    }
+
+    avc->sample_rate    = 48000;
+    avc->sample_fmt     = avc->request_sample_fmt == AV_SAMPLE_FMT_FLT ?
+                          AV_SAMPLE_FMT_FLT : AV_SAMPLE_FMT_S16;
+    avc->channel_layout = avc->channels > 8 ? 0 :
+                          ff_vorbis_channel_layouts[avc->channels - 1];
+
+    if (avc->extradata_size >= OPUS_HEAD_SIZE) {
+        opus->pre_skip = AV_RL16(avc->extradata + 10);
+        gain_db     = sign_extend(AV_RL16(avc->extradata + 16), 16);
+        channel_map = AV_RL8 (avc->extradata + 18);
+    }
+    if (avc->extradata_size >= OPUS_HEAD_SIZE + 2 + avc->channels) {
+        nb_streams = avc->extradata[OPUS_HEAD_SIZE + 0];
+        nb_coupled = avc->extradata[OPUS_HEAD_SIZE + 1];
+        if (nb_streams + nb_coupled != avc->channels)
+            av_log(avc, AV_LOG_WARNING, "Inconsistent channel mapping.\n");
+        mapping = avc->extradata + OPUS_HEAD_SIZE + 2;
+    } else {
+        if (avc->channels > 2 || channel_map) {
+            av_log(avc, AV_LOG_ERROR,
+                   "No channel mapping for %d channels.\n", avc->channels);
+            return AVERROR(EINVAL);
+        }
+        nb_streams = 1;
+        nb_coupled = avc->channels > 1;
+        mapping    = mapping_arr;
+    }
+
+    if (avc->channels > 2 && avc->channels <= 8) {
+        const uint8_t *vorbis_offset = ff_vorbis_channel_layout_offsets[avc->channels - 1];
+        int ch;
+
+        /* Remap channels from Vorbis order to ffmpeg order */
+        for (ch = 0; ch < avc->channels; ch++)
+            mapping_arr[ch] = mapping[vorbis_offset[ch]];
+        mapping = mapping_arr;
+    }
+
+    opus->dec = opus_multistream_decoder_create(avc->sample_rate, avc->channels,
+                                                nb_streams, nb_coupled,
+                                                mapping, &ret);
+    if (!opus->dec) {
+        av_log(avc, AV_LOG_ERROR, "Unable to create decoder: %s\n",
+               opus_strerror(ret));
+        return ff_opus_error_to_averror(ret);
+    }
+
+#ifdef OPUS_SET_GAIN
+    ret = opus_multistream_decoder_ctl(opus->dec, OPUS_SET_GAIN(gain_db));
+    if (ret != OPUS_OK)
+        av_log(avc, AV_LOG_WARNING, "Failed to set gain: %s\n",
+               opus_strerror(ret));
+#else
+    {
+        double gain_lin = ff_exp10(gain_db / (20.0 * 256));
+        if (avc->sample_fmt == AV_SAMPLE_FMT_FLT)
+            opus->gain.d = gain_lin;
+        else
+            opus->gain.i = FFMIN(gain_lin * 65536, INT_MAX);
+    }
+#endif
+
+#ifdef OPUS_SET_PHASE_INVERSION_DISABLED_REQUEST
+    ret = opus_multistream_decoder_ctl(opus->dec,
+                                       OPUS_SET_PHASE_INVERSION_DISABLED(!opus->apply_phase_inv));
+    if (ret != OPUS_OK)
+        av_log(avc, AV_LOG_WARNING,
+               "Unable to set phase inversion: %s\n",
+               opus_strerror(ret));
+#endif
+
+    /* Decoder delay (in samples) at 48kHz */
+    avc->delay = avc->internal->skip_samples = opus->pre_skip;
+
+    return 0;
+}
+
+static av_cold int libopus_decode_close(AVCodecContext *avc)
+{
+    struct libopus_context *opus = avc->priv_data;
+
+    if (opus->dec) {
+        opus_multistream_decoder_destroy(opus->dec);
+        opus->dec = NULL;
+    }
+    return 0;
+}
+
+#define MAX_FRAME_SIZE (960 * 6)
+
+static int libopus_decode(AVCodecContext *avc, void *data,
+                          int *got_frame_ptr, AVPacket *pkt)
+{
+    struct libopus_context *opus = avc->priv_data;
+    AVFrame *frame               = data;
+    int ret, nb_samples;
+
+    frame->nb_samples = MAX_FRAME_SIZE;
+    if ((ret = ff_get_buffer(avc, frame, 0)) < 0)
+        return ret;
+
+    if (avc->sample_fmt == AV_SAMPLE_FMT_S16)
+        nb_samples = opus_multistream_decode(opus->dec, pkt->data, pkt->size,
+                                             (opus_int16 *)frame->data[0],
+                                             frame->nb_samples, 0);
+    else
+        nb_samples = opus_multistream_decode_float(opus->dec, pkt->data, pkt->size,
+                                                   (float *)frame->data[0],
+                                                   frame->nb_samples, 0);
+
+    if (nb_samples < 0) {
+        av_log(avc, AV_LOG_ERROR, "Decoding error: %s\n",
+               opus_strerror(nb_samples));
+        return ff_opus_error_to_averror(nb_samples);
+    }
+
+#ifndef OPUS_SET_GAIN
+    {
+        int i = avc->channels * nb_samples;
+        if (avc->sample_fmt == AV_SAMPLE_FMT_FLT) {
+            float *pcm = (float *)frame->data[0];
+            for (; i > 0; i--, pcm++)
+                *pcm = av_clipf(*pcm * opus->gain.d, -1, 1);
+        } else {
+            int16_t *pcm = (int16_t *)frame->data[0];
+            for (; i > 0; i--, pcm++)
+                *pcm = av_clip_int16(((int64_t)opus->gain.i * *pcm) >> 16);
+        }
+    }
+#endif
+
+    frame->nb_samples = nb_samples;
+    *got_frame_ptr    = 1;
+
+    return pkt->size;
+}
+
+static void libopus_flush(AVCodecContext *avc)
+{
+    struct libopus_context *opus = avc->priv_data;
+
+    opus_multistream_decoder_ctl(opus->dec, OPUS_RESET_STATE);
+    /* The stream can have been extracted by a tool that is not Opus-aware.
+       Therefore, any packet can become the first of the stream. */
+    avc->internal->skip_samples = opus->pre_skip;
+}
+
+
+#define OFFSET(x) offsetof(struct libopus_context, x)
+#define FLAGS AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM
+static const AVOption libopusdec_options[] = {
+#ifdef OPUS_SET_PHASE_INVERSION_DISABLED_REQUEST
+    { "apply_phase_inv", "Apply intensity stereo phase inversion", OFFSET(apply_phase_inv), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
+#endif
+    { NULL },
+};
+
+static const AVClass libopusdec_class = {
+    .class_name = "libopusdec",
+    .item_name  = av_default_item_name,
+    .option     = libopusdec_options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+
+AVCodec ff_libopus_decoder = {
+    .name           = "libopus",
+    .long_name      = NULL_IF_CONFIG_SMALL("libopus Opus"),
+    .type           = AVMEDIA_TYPE_AUDIO,
+    .id             = AV_CODEC_ID_OPUS,
+    .priv_data_size = sizeof(struct libopus_context),
+    .init           = libopus_decode_init,
+    .close          = libopus_decode_close,
+    .decode         = libopus_decode,
+    .flush          = libopus_flush,
+    .capabilities   = AV_CODEC_CAP_DR1,
+    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
+    .sample_fmts    = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLT,
+                                                     AV_SAMPLE_FMT_S16,
+                                                     AV_SAMPLE_FMT_NONE },
+    .priv_class     = &libopusdec_class,
+    .wrapper_name   = "libopus",
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/libopusenc.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/libopusenc.c
new file mode 100644
index 000000000..7c025a66d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/libopusenc.c
@@ -0,0 +1,594 @@
+/*
+ * Opus encoder using libopus
+ * Copyright (c) 2012 Nathan Caldwell
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <opus.h>
+#include <opus_multistream.h>
+
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "bytestream.h"
+#include "internal.h"
+#include "libopus.h"
+#include "vorbis.h"
+#include "audio_frame_queue.h"
+
+typedef struct LibopusEncOpts {
+    int vbr;
+    int application;
+    int packet_loss;
+    int complexity;
+    float frame_duration;
+    int packet_size;
+    int max_bandwidth;
+    int mapping_family;
+#ifdef OPUS_SET_PHASE_INVERSION_DISABLED_REQUEST
+    int apply_phase_inv;
+#endif
+} LibopusEncOpts;
+
+typedef struct LibopusEncContext {
+    AVClass *class;
+    OpusMSEncoder *enc;
+    int stream_count;
+    uint8_t *samples;
+    LibopusEncOpts opts;
+    AudioFrameQueue afq;
+    const uint8_t *encoder_channel_map;
+} LibopusEncContext;
+
+static const uint8_t opus_coupled_streams[8] = {
+    0, 1, 1, 2, 2, 2, 2, 3
+};
+
+/* Opus internal to Vorbis channel order mapping written in the header */
+static const uint8_t opus_vorbis_channel_map[8][8] = {
+    { 0 },
+    { 0, 1 },
+    { 0, 2, 1 },
+    { 0, 1, 2, 3 },
+    { 0, 4, 1, 2, 3 },
+    { 0, 4, 1, 2, 3, 5 },
+    { 0, 4, 1, 2, 3, 5, 6 },
+    { 0, 6, 1, 2, 3, 4, 5, 7 },
+};
+
+/* libavcodec to libopus channel order mapping, passed to libopus */
+static const uint8_t libavcodec_libopus_channel_map[8][8] = {
+    { 0 },
+    { 0, 1 },
+    { 0, 1, 2 },
+    { 0, 1, 2, 3 },
+    { 0, 1, 3, 4, 2 },
+    { 0, 1, 4, 5, 2, 3 },
+    { 0, 1, 5, 6, 2, 4, 3 },
+    { 0, 1, 6, 7, 4, 5, 2, 3 },
+};
+
+static void libopus_write_header(AVCodecContext *avctx, int stream_count,
+                                 int coupled_stream_count,
+                                 int mapping_family,
+                                 const uint8_t *channel_mapping)
+{
+    uint8_t *p   = avctx->extradata;
+    int channels = avctx->channels;
+
+    bytestream_put_buffer(&p, "OpusHead", 8);
+    bytestream_put_byte(&p, 1); /* Version */
+    bytestream_put_byte(&p, channels);
+    bytestream_put_le16(&p, avctx->initial_padding); /* Lookahead samples at 48kHz */
+    bytestream_put_le32(&p, avctx->sample_rate); /* Original sample rate */
+    bytestream_put_le16(&p, 0); /* Gain of 0dB is recommended. */
+
+    /* Channel mapping */
+    bytestream_put_byte(&p, mapping_family);
+    if (mapping_family != 0) {
+        bytestream_put_byte(&p, stream_count);
+        bytestream_put_byte(&p, coupled_stream_count);
+        bytestream_put_buffer(&p, channel_mapping, channels);
+    }
+}
+
+static int libopus_configure_encoder(AVCodecContext *avctx, OpusMSEncoder *enc,
+                                     LibopusEncOpts *opts)
+{
+    int ret;
+
+    if (avctx->global_quality) {
+        av_log(avctx, AV_LOG_ERROR,
+               "Quality-based encoding not supported, "
+               "please specify a bitrate and VBR setting.\n");
+        return AVERROR(EINVAL);
+    }
+
+    ret = opus_multistream_encoder_ctl(enc, OPUS_SET_BITRATE(avctx->bit_rate));
+    if (ret != OPUS_OK) {
+        av_log(avctx, AV_LOG_ERROR,
+               "Failed to set bitrate: %s\n", opus_strerror(ret));
+        return ret;
+    }
+
+    ret = opus_multistream_encoder_ctl(enc,
+                                       OPUS_SET_COMPLEXITY(opts->complexity));
+    if (ret != OPUS_OK)
+        av_log(avctx, AV_LOG_WARNING,
+               "Unable to set complexity: %s\n", opus_strerror(ret));
+
+    ret = opus_multistream_encoder_ctl(enc, OPUS_SET_VBR(!!opts->vbr));
+    if (ret != OPUS_OK)
+        av_log(avctx, AV_LOG_WARNING,
+               "Unable to set VBR: %s\n", opus_strerror(ret));
+
+    ret = opus_multistream_encoder_ctl(enc,
+                                       OPUS_SET_VBR_CONSTRAINT(opts->vbr == 2));
+    if (ret != OPUS_OK)
+        av_log(avctx, AV_LOG_WARNING,
+               "Unable to set constrained VBR: %s\n", opus_strerror(ret));
+
+    ret = opus_multistream_encoder_ctl(enc,
+                                       OPUS_SET_PACKET_LOSS_PERC(opts->packet_loss));
+    if (ret != OPUS_OK)
+        av_log(avctx, AV_LOG_WARNING,
+               "Unable to set expected packet loss percentage: %s\n",
+               opus_strerror(ret));
+
+    if (avctx->cutoff) {
+        ret = opus_multistream_encoder_ctl(enc,
+                                           OPUS_SET_MAX_BANDWIDTH(opts->max_bandwidth));
+        if (ret != OPUS_OK)
+            av_log(avctx, AV_LOG_WARNING,
+                   "Unable to set maximum bandwidth: %s\n", opus_strerror(ret));
+    }
+
+#ifdef OPUS_SET_PHASE_INVERSION_DISABLED_REQUEST
+    ret = opus_multistream_encoder_ctl(enc,
+                                       OPUS_SET_PHASE_INVERSION_DISABLED(!opts->apply_phase_inv));
+    if (ret != OPUS_OK)
+        av_log(avctx, AV_LOG_WARNING,
+               "Unable to set phase inversion: %s\n",
+               opus_strerror(ret));
+#endif
+    return OPUS_OK;
+}
+
+static int libopus_check_max_channels(AVCodecContext *avctx,
+                                      int max_channels) {
+    if (avctx->channels > max_channels) {
+        av_log(avctx, AV_LOG_ERROR, "Opus mapping family undefined for %d channels.\n",
+               avctx->channels);
+        return AVERROR(EINVAL);
+    }
+
+    return 0;
+}
+
+static int libopus_check_vorbis_layout(AVCodecContext *avctx, int mapping_family) {
+    av_assert2(avctx->channels < FF_ARRAY_ELEMS(ff_vorbis_channel_layouts));
+
+    if (!avctx->channel_layout) {
+        av_log(avctx, AV_LOG_WARNING,
+               "No channel layout specified. Opus encoder will use Vorbis "
+               "channel layout for %d channels.\n", avctx->channels);
+    } else if (avctx->channel_layout != ff_vorbis_channel_layouts[avctx->channels - 1]) {
+        char name[32];
+        av_get_channel_layout_string(name, sizeof(name), avctx->channels,
+                                     avctx->channel_layout);
+        av_log(avctx, AV_LOG_ERROR,
+               "Invalid channel layout %s for specified mapping family %d.\n",
+               name, mapping_family);
+
+        return AVERROR(EINVAL);
+    }
+
+    return 0;
+}
+
+static int libopus_validate_layout_and_get_channel_map(
+        AVCodecContext *avctx,
+        int mapping_family,
+        const uint8_t ** channel_map_result)
+{
+    const uint8_t * channel_map = NULL;
+    int ret;
+
+    switch (mapping_family) {
+    case -1:
+        ret = libopus_check_max_channels(avctx, 8);
+        if (ret == 0) {
+            ret = libopus_check_vorbis_layout(avctx, mapping_family);
+            /* Channels do not need to be reordered. */
+        }
+
+        break;
+    case 0:
+        ret = libopus_check_max_channels(avctx, 2);
+        if (ret == 0) {
+            ret = libopus_check_vorbis_layout(avctx, mapping_family);
+        }
+        break;
+    case 1:
+        /* Opus expects channels to be in Vorbis order. */
+        ret = libopus_check_max_channels(avctx, 8);
+        if (ret == 0) {
+            ret = libopus_check_vorbis_layout(avctx, mapping_family);
+            channel_map = ff_vorbis_channel_layout_offsets[avctx->channels - 1];
+        }
+        break;
+    case 255:
+        ret = libopus_check_max_channels(avctx, 254);
+        break;
+    default:
+        av_log(avctx, AV_LOG_WARNING,
+               "Unknown channel mapping family %d. Output channel layout may be invalid.\n",
+               mapping_family);
+        ret = 0;
+    }
+
+    *channel_map_result = channel_map;
+    return ret;
+}
+
+static av_cold int libopus_encode_init(AVCodecContext *avctx)
+{
+    LibopusEncContext *opus = avctx->priv_data;
+    OpusMSEncoder *enc;
+    uint8_t libopus_channel_mapping[255];
+    int ret = OPUS_OK;
+    int av_ret;
+    int coupled_stream_count, header_size, frame_size;
+    int mapping_family;
+
+    frame_size = opus->opts.frame_duration * 48000 / 1000;
+    switch (frame_size) {
+    case 120:
+    case 240:
+        if (opus->opts.application != OPUS_APPLICATION_RESTRICTED_LOWDELAY)
+            av_log(avctx, AV_LOG_WARNING,
+                   "LPC mode cannot be used with a frame duration of less "
+                   "than 10ms. Enabling restricted low-delay mode.\n"
+                   "Use a longer frame duration if this is not what you want.\n");
+        /* Frame sizes less than 10 ms can only use MDCT mode, so switching to
+         * RESTRICTED_LOWDELAY avoids an unnecessary extra 2.5ms lookahead. */
+        opus->opts.application = OPUS_APPLICATION_RESTRICTED_LOWDELAY;
+    case 480:
+    case 960:
+    case 1920:
+    case 2880:
+#ifdef OPUS_FRAMESIZE_120_MS
+    case 3840:
+    case 4800:
+    case 5760:
+#endif
+        opus->opts.packet_size =
+        avctx->frame_size      = frame_size * avctx->sample_rate / 48000;
+        break;
+    default:
+        av_log(avctx, AV_LOG_ERROR, "Invalid frame duration: %g.\n"
+               "Frame duration must be exactly one of: 2.5, 5, 10, 20, 40"
+#ifdef OPUS_FRAMESIZE_120_MS
+               ", 60, 80, 100 or 120.\n",
+#else
+               " or 60.\n",
+#endif
+               opus->opts.frame_duration);
+        return AVERROR(EINVAL);
+    }
+
+    if (avctx->compression_level < 0 || avctx->compression_level > 10) {
+        av_log(avctx, AV_LOG_WARNING,
+               "Compression level must be in the range 0 to 10. "
+               "Defaulting to 10.\n");
+        opus->opts.complexity = 10;
+    } else {
+        opus->opts.complexity = avctx->compression_level;
+    }
+
+    if (avctx->cutoff) {
+        switch (avctx->cutoff) {
+        case  4000:
+            opus->opts.max_bandwidth = OPUS_BANDWIDTH_NARROWBAND;
+            break;
+        case  6000:
+            opus->opts.max_bandwidth = OPUS_BANDWIDTH_MEDIUMBAND;
+            break;
+        case  8000:
+            opus->opts.max_bandwidth = OPUS_BANDWIDTH_WIDEBAND;
+            break;
+        case 12000:
+            opus->opts.max_bandwidth = OPUS_BANDWIDTH_SUPERWIDEBAND;
+            break;
+        case 20000:
+            opus->opts.max_bandwidth = OPUS_BANDWIDTH_FULLBAND;
+            break;
+        default:
+            av_log(avctx, AV_LOG_WARNING,
+                   "Invalid frequency cutoff: %d. Using default maximum bandwidth.\n"
+                   "Cutoff frequency must be exactly one of: 4000, 6000, 8000, 12000 or 20000.\n",
+                   avctx->cutoff);
+            avctx->cutoff = 0;
+        }
+    }
+
+    /* Channels may need to be reordered to match opus mapping. */
+    av_ret = libopus_validate_layout_and_get_channel_map(avctx, opus->opts.mapping_family,
+                                                         &opus->encoder_channel_map);
+    if (av_ret) {
+        return av_ret;
+    }
+
+    if (opus->opts.mapping_family == -1) {
+        /* By default, use mapping family 1 for the header but use the older
+         * libopus multistream API to avoid surround masking. */
+
+        /* Set the mapping family so that the value is correct in the header */
+        mapping_family = avctx->channels > 2 ? 1 : 0;
+        coupled_stream_count = opus_coupled_streams[avctx->channels - 1];
+        opus->stream_count   = avctx->channels - coupled_stream_count;
+        memcpy(libopus_channel_mapping,
+               opus_vorbis_channel_map[avctx->channels - 1],
+               avctx->channels * sizeof(*libopus_channel_mapping));
+
+        enc = opus_multistream_encoder_create(
+            avctx->sample_rate, avctx->channels, opus->stream_count,
+            coupled_stream_count,
+            libavcodec_libopus_channel_map[avctx->channels - 1],
+            opus->opts.application, &ret);
+    } else {
+        /* Use the newer multistream API. The encoder will set the channel
+         * mapping and coupled stream counts to its internal defaults and will
+         * use surround masking analysis to save bits. */
+        mapping_family = opus->opts.mapping_family;
+        enc = opus_multistream_surround_encoder_create(
+            avctx->sample_rate, avctx->channels, mapping_family,
+            &opus->stream_count, &coupled_stream_count, libopus_channel_mapping,
+            opus->opts.application, &ret);
+    }
+
+    if (ret != OPUS_OK) {
+        av_log(avctx, AV_LOG_ERROR,
+               "Failed to create encoder: %s\n", opus_strerror(ret));
+        return ff_opus_error_to_averror(ret);
+    }
+
+    if (!avctx->bit_rate) {
+        /* Sane default copied from opusenc */
+        avctx->bit_rate = 64000 * opus->stream_count +
+                          32000 * coupled_stream_count;
+        av_log(avctx, AV_LOG_WARNING,
+               "No bit rate set. Defaulting to %"PRId64" bps.\n", avctx->bit_rate);
+    }
+
+    if (avctx->bit_rate < 500 || avctx->bit_rate > 256000 * avctx->channels) {
+        av_log(avctx, AV_LOG_ERROR, "The bit rate %"PRId64" bps is unsupported. "
+               "Please choose a value between 500 and %d.\n", avctx->bit_rate,
+               256000 * avctx->channels);
+        ret = AVERROR(EINVAL);
+        goto fail;
+    }
+
+    ret = libopus_configure_encoder(avctx, enc, &opus->opts);
+    if (ret != OPUS_OK) {
+        ret = ff_opus_error_to_averror(ret);
+        goto fail;
+    }
+
+    /* Header includes channel mapping table if and only if mapping family is NOT 0 */
+    header_size = 19 + (mapping_family == 0 ? 0 : 2 + avctx->channels);
+    avctx->extradata = av_malloc(header_size + AV_INPUT_BUFFER_PADDING_SIZE);
+    if (!avctx->extradata) {
+        av_log(avctx, AV_LOG_ERROR, "Failed to allocate extradata.\n");
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+    avctx->extradata_size = header_size;
+
+    opus->samples = av_mallocz_array(frame_size, avctx->channels *
+                               av_get_bytes_per_sample(avctx->sample_fmt));
+    if (!opus->samples) {
+        av_log(avctx, AV_LOG_ERROR, "Failed to allocate samples buffer.\n");
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    ret = opus_multistream_encoder_ctl(enc, OPUS_GET_LOOKAHEAD(&avctx->initial_padding));
+    if (ret != OPUS_OK)
+        av_log(avctx, AV_LOG_WARNING,
+               "Unable to get number of lookahead samples: %s\n",
+               opus_strerror(ret));
+
+    libopus_write_header(avctx, opus->stream_count, coupled_stream_count,
+                         mapping_family, libopus_channel_mapping);
+
+    ff_af_queue_init(avctx, &opus->afq);
+
+    opus->enc = enc;
+
+    return 0;
+
+fail:
+    opus_multistream_encoder_destroy(enc);
+    av_freep(&avctx->extradata);
+    return ret;
+}
+
+static void libopus_copy_samples_with_channel_map(
+    uint8_t *dst, const uint8_t *src, const uint8_t *channel_map,
+    int nb_channels, int nb_samples, int bytes_per_sample) {
+    int sample, channel;
+    for (sample = 0; sample < nb_samples; ++sample) {
+        for (channel = 0; channel < nb_channels; ++channel) {
+            const size_t src_pos = bytes_per_sample * (nb_channels * sample + channel);
+            const size_t dst_pos = bytes_per_sample * (nb_channels * sample + channel_map[channel]);
+
+            memcpy(&dst[dst_pos], &src[src_pos], bytes_per_sample);
+        }
+    }
+}
+
+static int libopus_encode(AVCodecContext *avctx, AVPacket *avpkt,
+                          const AVFrame *frame, int *got_packet_ptr)
+{
+    LibopusEncContext *opus = avctx->priv_data;
+    const int bytes_per_sample = av_get_bytes_per_sample(avctx->sample_fmt);
+    const int sample_size      = avctx->channels * bytes_per_sample;
+    uint8_t *audio;
+    int ret;
+    int discard_padding;
+
+    if (frame) {
+        ret = ff_af_queue_add(&opus->afq, frame);
+        if (ret < 0)
+            return ret;
+        if (opus->encoder_channel_map != NULL) {
+            audio = opus->samples;
+            libopus_copy_samples_with_channel_map(
+                audio, frame->data[0], opus->encoder_channel_map,
+                avctx->channels, frame->nb_samples, bytes_per_sample);
+        } else if (frame->nb_samples < opus->opts.packet_size) {
+            audio = opus->samples;
+            memcpy(audio, frame->data[0], frame->nb_samples * sample_size);
+        } else
+            audio = frame->data[0];
+    } else {
+        if (!opus->afq.remaining_samples || (!opus->afq.frame_alloc && !opus->afq.frame_count))
+            return 0;
+        audio = opus->samples;
+        memset(audio, 0, opus->opts.packet_size * sample_size);
+    }
+
+    /* Maximum packet size taken from opusenc in opus-tools. 120ms packets
+     * consist of 6 frames in one packet. The maximum frame size is 1275
+     * bytes along with the largest possible packet header of 7 bytes. */
+    if ((ret = ff_alloc_packet2(avctx, avpkt, (1275 * 6 + 7) * opus->stream_count, 0)) < 0)
+        return ret;
+
+    if (avctx->sample_fmt == AV_SAMPLE_FMT_FLT)
+        ret = opus_multistream_encode_float(opus->enc, (float *)audio,
+                                            opus->opts.packet_size,
+                                            avpkt->data, avpkt->size);
+    else
+        ret = opus_multistream_encode(opus->enc, (opus_int16 *)audio,
+                                      opus->opts.packet_size,
+                                      avpkt->data, avpkt->size);
+
+    if (ret < 0) {
+        av_log(avctx, AV_LOG_ERROR,
+               "Error encoding frame: %s\n", opus_strerror(ret));
+        return ff_opus_error_to_averror(ret);
+    }
+
+    av_shrink_packet(avpkt, ret);
+
+    ff_af_queue_remove(&opus->afq, opus->opts.packet_size,
+                       &avpkt->pts, &avpkt->duration);
+
+    discard_padding = opus->opts.packet_size - avpkt->duration;
+    // Check if subtraction resulted in an overflow
+    if ((discard_padding < opus->opts.packet_size) != (avpkt->duration > 0)) {
+        av_packet_unref(avpkt);
+        av_free(avpkt);
+        return AVERROR(EINVAL);
+    }
+    if (discard_padding > 0) {
+        uint8_t* side_data = av_packet_new_side_data(avpkt,
+                                                     AV_PKT_DATA_SKIP_SAMPLES,
+                                                     10);
+        if(!side_data) {
+            av_packet_unref(avpkt);
+            av_free(avpkt);
+            return AVERROR(ENOMEM);
+        }
+        AV_WL32(side_data + 4, discard_padding);
+    }
+
+    *got_packet_ptr = 1;
+
+    return 0;
+}
+
+static av_cold int libopus_encode_close(AVCodecContext *avctx)
+{
+    LibopusEncContext *opus = avctx->priv_data;
+
+    opus_multistream_encoder_destroy(opus->enc);
+
+    ff_af_queue_close(&opus->afq);
+
+    av_freep(&opus->samples);
+    av_freep(&avctx->extradata);
+
+    return 0;
+}
+
+#define OFFSET(x) offsetof(LibopusEncContext, opts.x)
+#define FLAGS AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption libopus_options[] = {
+    { "application",    "Intended application type",           OFFSET(application),    AV_OPT_TYPE_INT,   { .i64 = OPUS_APPLICATION_AUDIO }, OPUS_APPLICATION_VOIP, OPUS_APPLICATION_RESTRICTED_LOWDELAY, FLAGS, "application" },
+        { "voip",           "Favor improved speech intelligibility",   0, AV_OPT_TYPE_CONST, { .i64 = OPUS_APPLICATION_VOIP },                0, 0, FLAGS, "application" },
+        { "audio",          "Favor faithfulness to the input",         0, AV_OPT_TYPE_CONST, { .i64 = OPUS_APPLICATION_AUDIO },               0, 0, FLAGS, "application" },
+        { "lowdelay",       "Restrict to only the lowest delay modes", 0, AV_OPT_TYPE_CONST, { .i64 = OPUS_APPLICATION_RESTRICTED_LOWDELAY }, 0, 0, FLAGS, "application" },
+    { "frame_duration", "Duration of a frame in milliseconds", OFFSET(frame_duration), AV_OPT_TYPE_FLOAT, { .dbl = 20.0 }, 2.5, 120.0, FLAGS },
+    { "packet_loss",    "Expected packet loss percentage",     OFFSET(packet_loss),    AV_OPT_TYPE_INT,   { .i64 = 0 },    0,   100,  FLAGS },
+    { "vbr",            "Variable bit rate mode",              OFFSET(vbr),            AV_OPT_TYPE_INT,   { .i64 = 1 },    0,   2,    FLAGS, "vbr" },
+        { "off",            "Use constant bit rate", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, FLAGS, "vbr" },
+        { "on",             "Use variable bit rate", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, FLAGS, "vbr" },
+        { "constrained",    "Use constrained VBR",   0, AV_OPT_TYPE_CONST, { .i64 = 2 }, 0, 0, FLAGS, "vbr" },
+    { "mapping_family", "Channel Mapping Family",              OFFSET(mapping_family), AV_OPT_TYPE_INT,   { .i64 = -1 },   -1,  255,  FLAGS, "mapping_family" },
+#ifdef OPUS_SET_PHASE_INVERSION_DISABLED_REQUEST
+    { "apply_phase_inv", "Apply intensity stereo phase inversion", OFFSET(apply_phase_inv), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
+#endif
+    { NULL },
+};
+
+static const AVClass libopus_class = {
+    .class_name = "libopus",
+    .item_name  = av_default_item_name,
+    .option     = libopus_options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+static const AVCodecDefault libopus_defaults[] = {
+    { "b",                 "0" },
+    { "compression_level", "10" },
+    { NULL },
+};
+
+static const int libopus_sample_rates[] = {
+    48000, 24000, 16000, 12000, 8000, 0,
+};
+
+AVCodec ff_libopus_encoder = {
+    .name            = "libopus",
+    .long_name       = NULL_IF_CONFIG_SMALL("libopus Opus"),
+    .type            = AVMEDIA_TYPE_AUDIO,
+    .id              = AV_CODEC_ID_OPUS,
+    .priv_data_size  = sizeof(LibopusEncContext),
+    .init            = libopus_encode_init,
+    .encode2         = libopus_encode,
+    .close           = libopus_encode_close,
+    .capabilities    = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_SMALL_LAST_FRAME,
+    .sample_fmts     = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
+                                                      AV_SAMPLE_FMT_FLT,
+                                                      AV_SAMPLE_FMT_NONE },
+    .supported_samplerates = libopus_sample_rates,
+    .priv_class      = &libopus_class,
+    .defaults        = libopus_defaults,
+    .wrapper_name    = "libopus",
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/lpc.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/lpc.c
new file mode 100644
index 000000000..f8da1e126
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/lpc.c
@@ -0,0 +1,325 @@
+/*
+ * LPC utility code
+ * Copyright (c) 2006  Justin Ruggles <justin.ruggles@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/common.h"
+#include "libavutil/lls.h"
+
+#define LPC_USE_DOUBLE
+#include "lpc.h"
+#include "libavutil/avassert.h"
+
+
+/**
+ * Apply Welch window function to audio block
+ */
+static void lpc_apply_welch_window_c(const int32_t *data, int len,
+                                     double *w_data)
+{
+    int i, n2;
+    double w;
+    double c;
+
+    n2 = (len >> 1);
+    c = 2.0 / (len - 1.0);
+
+    if (len & 1) {
+        for(i=0; i<n2; i++) {
+            w = c - i - 1.0;
+            w = 1.0 - (w * w);
+            w_data[i] = data[i] * w;
+            w_data[len-1-i] = data[len-1-i] * w;
+        }
+        return;
+    }
+
+    w_data+=n2;
+      data+=n2;
+    for(i=0; i<n2; i++) {
+        w = c - n2 + i;
+        w = 1.0 - (w * w);
+        w_data[-i-1] = data[-i-1] * w;
+        w_data[+i  ] = data[+i  ] * w;
+    }
+}
+
+/**
+ * Calculate autocorrelation data from audio samples
+ * A Welch window function is applied before calculation.
+ */
+static void lpc_compute_autocorr_c(const double *data, int len, int lag,
+                                   double *autoc)
+{
+    int i, j;
+
+    for(j=0; j<lag; j+=2){
+        double sum0 = 1.0, sum1 = 1.0;
+        for(i=j; i<len; i++){
+            sum0 += data[i] * data[i-j];
+            sum1 += data[i] * data[i-j-1];
+        }
+        autoc[j  ] = sum0;
+        autoc[j+1] = sum1;
+    }
+
+    if(j==lag){
+        double sum = 1.0;
+        for(i=j-1; i<len; i+=2){
+            sum += data[i  ] * data[i-j  ]
+                 + data[i+1] * data[i-j+1];
+        }
+        autoc[j] = sum;
+    }
+}
+
+/**
+ * Quantize LPC coefficients
+ */
+static void quantize_lpc_coefs(double *lpc_in, int order, int precision,
+                               int32_t *lpc_out, int *shift, int min_shift,
+                               int max_shift, int zero_shift)
+{
+    int i;
+    double cmax, error;
+    int32_t qmax;
+    int sh;
+
+    /* define maximum levels */
+    qmax = (1 << (precision - 1)) - 1;
+
+    /* find maximum coefficient value */
+    cmax = 0.0;
+    for(i=0; i<order; i++) {
+        cmax= FFMAX(cmax, fabs(lpc_in[i]));
+    }
+
+    /* if maximum value quantizes to zero, return all zeros */
+    if(cmax * (1 << max_shift) < 1.0) {
+        *shift = zero_shift;
+        memset(lpc_out, 0, sizeof(int32_t) * order);
+        return;
+    }
+
+    /* calculate level shift which scales max coeff to available bits */
+    sh = max_shift;
+    while((cmax * (1 << sh) > qmax) && (sh > min_shift)) {
+        sh--;
+    }
+
+    /* since negative shift values are unsupported in decoder, scale down
+       coefficients instead */
+    if(sh == 0 && cmax > qmax) {
+        double scale = ((double)qmax) / cmax;
+        for(i=0; i<order; i++) {
+            lpc_in[i] *= scale;
+        }
+    }
+
+    /* output quantized coefficients and level shift */
+    error=0;
+    for(i=0; i<order; i++) {
+        error -= lpc_in[i] * (1 << sh);
+        lpc_out[i] = av_clip(lrintf(error), -qmax, qmax);
+        error -= lpc_out[i];
+    }
+    *shift = sh;
+}
+
+static int estimate_best_order(double *ref, int min_order, int max_order)
+{
+    int i, est;
+
+    est = min_order;
+    for(i=max_order-1; i>=min_order-1; i--) {
+        if(ref[i] > 0.10) {
+            est = i+1;
+            break;
+        }
+    }
+    return est;
+}
+
+int ff_lpc_calc_ref_coefs(LPCContext *s,
+                          const int32_t *samples, int order, double *ref)
+{
+    double autoc[MAX_LPC_ORDER + 1];
+
+    s->lpc_apply_welch_window(samples, s->blocksize, s->windowed_samples);
+    s->lpc_compute_autocorr(s->windowed_samples, s->blocksize, order, autoc);
+    compute_ref_coefs(autoc, order, ref, NULL);
+
+    return order;
+}
+
+double ff_lpc_calc_ref_coefs_f(LPCContext *s, const float *samples, int len,
+                               int order, double *ref)
+{
+    int i;
+    double signal = 0.0f, avg_err = 0.0f;
+    double autoc[MAX_LPC_ORDER+1] = {0}, error[MAX_LPC_ORDER+1] = {0};
+    const double a = 0.5f, b = 1.0f - a;
+
+    /* Apply windowing */
+    for (i = 0; i <= len / 2; i++) {
+        double weight = a - b*cos((2*M_PI*i)/(len - 1));
+        s->windowed_samples[i] = weight*samples[i];
+        s->windowed_samples[len-1-i] = weight*samples[len-1-i];
+    }
+
+    s->lpc_compute_autocorr(s->windowed_samples, len, order, autoc);
+    signal = autoc[0];
+    compute_ref_coefs(autoc, order, ref, error);
+    for (i = 0; i < order; i++)
+        avg_err = (avg_err + error[i])/2.0f;
+    return signal/avg_err;
+}
+
+/**
+ * Calculate LPC coefficients for multiple orders
+ *
+ * @param lpc_type LPC method for determining coefficients,
+ *                 see #FFLPCType for details
+ */
+int ff_lpc_calc_coefs(LPCContext *s,
+                      const int32_t *samples, int blocksize, int min_order,
+                      int max_order, int precision,
+                      int32_t coefs[][MAX_LPC_ORDER], int *shift,
+                      enum FFLPCType lpc_type, int lpc_passes,
+                      int omethod, int min_shift, int max_shift, int zero_shift)
+{
+    double autoc[MAX_LPC_ORDER+1];
+    double ref[MAX_LPC_ORDER] = { 0 };
+    double lpc[MAX_LPC_ORDER][MAX_LPC_ORDER];
+    int i, j, pass = 0;
+    int opt_order;
+
+    av_assert2(max_order >= MIN_LPC_ORDER && max_order <= MAX_LPC_ORDER &&
+           lpc_type > FF_LPC_TYPE_FIXED);
+    av_assert0(lpc_type == FF_LPC_TYPE_CHOLESKY || lpc_type == FF_LPC_TYPE_LEVINSON);
+
+    /* reinit LPC context if parameters have changed */
+    if (blocksize != s->blocksize || max_order != s->max_order ||
+        lpc_type  != s->lpc_type) {
+        ff_lpc_end(s);
+        ff_lpc_init(s, blocksize, max_order, lpc_type);
+    }
+
+    if(lpc_passes <= 0)
+        lpc_passes = 2;
+
+    if (lpc_type == FF_LPC_TYPE_LEVINSON || (lpc_type == FF_LPC_TYPE_CHOLESKY && lpc_passes > 1)) {
+        s->lpc_apply_welch_window(samples, blocksize, s->windowed_samples);
+
+        s->lpc_compute_autocorr(s->windowed_samples, blocksize, max_order, autoc);
+
+        compute_lpc_coefs(autoc, max_order, &lpc[0][0], MAX_LPC_ORDER, 0, 1);
+
+        for(i=0; i<max_order; i++)
+            ref[i] = fabs(lpc[i][i]);
+
+        pass++;
+    }
+
+    if (lpc_type == FF_LPC_TYPE_CHOLESKY) {
+        LLSModel *m = s->lls_models;
+        LOCAL_ALIGNED(32, double, var, [FFALIGN(MAX_LPC_ORDER+1,4)]);
+        double av_uninit(weight);
+        memset(var, 0, FFALIGN(MAX_LPC_ORDER+1,4)*sizeof(*var));
+
+        for(j=0; j<max_order; j++)
+            m[0].coeff[max_order-1][j] = -lpc[max_order-1][j];
+
+        for(; pass<lpc_passes; pass++){
+            avpriv_init_lls(&m[pass&1], max_order);
+
+            weight=0;
+            for(i=max_order; i<blocksize; i++){
+                for(j=0; j<=max_order; j++)
+                    var[j]= samples[i-j];
+
+                if(pass){
+                    double eval, inv, rinv;
+                    eval= m[pass&1].evaluate_lls(&m[(pass-1)&1], var+1, max_order-1);
+                    eval= (512>>pass) + fabs(eval - var[0]);
+                    inv = 1/eval;
+                    rinv = sqrt(inv);
+                    for(j=0; j<=max_order; j++)
+                        var[j] *= rinv;
+                    weight += inv;
+                }else
+                    weight++;
+
+                m[pass&1].update_lls(&m[pass&1], var);
+            }
+            avpriv_solve_lls(&m[pass&1], 0.001, 0);
+        }
+
+        for(i=0; i<max_order; i++){
+            for(j=0; j<max_order; j++)
+                lpc[i][j]=-m[(pass-1)&1].coeff[i][j];
+            ref[i]= sqrt(m[(pass-1)&1].variance[i] / weight) * (blocksize - max_order) / 4000;
+        }
+        for(i=max_order-1; i>0; i--)
+            ref[i] = ref[i-1] - ref[i];
+    }
+
+    opt_order = max_order;
+
+    if(omethod == ORDER_METHOD_EST) {
+        opt_order = estimate_best_order(ref, min_order, max_order);
+        i = opt_order-1;
+        quantize_lpc_coefs(lpc[i], i+1, precision, coefs[i], &shift[i],
+                           min_shift, max_shift, zero_shift);
+    } else {
+        for(i=min_order-1; i<max_order; i++) {
+            quantize_lpc_coefs(lpc[i], i+1, precision, coefs[i], &shift[i],
+                               min_shift, max_shift, zero_shift);
+        }
+    }
+
+    return opt_order;
+}
+
+av_cold int ff_lpc_init(LPCContext *s, int blocksize, int max_order,
+                        enum FFLPCType lpc_type)
+{
+    s->blocksize = blocksize;
+    s->max_order = max_order;
+    s->lpc_type  = lpc_type;
+
+    s->windowed_buffer = av_mallocz((blocksize + 2 + FFALIGN(max_order, 4)) *
+                                    sizeof(*s->windowed_samples));
+    if (!s->windowed_buffer)
+        return AVERROR(ENOMEM);
+    s->windowed_samples = s->windowed_buffer + FFALIGN(max_order, 4);
+
+    s->lpc_apply_welch_window = lpc_apply_welch_window_c;
+    s->lpc_compute_autocorr   = lpc_compute_autocorr_c;
+
+    if (ARCH_X86)
+        ff_lpc_init_x86(s);
+
+    return 0;
+}
+
+av_cold void ff_lpc_end(LPCContext *s)
+{
+    av_freep(&s->windowed_buffer);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/lpc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/lpc.h
new file mode 100644
index 000000000..88ca247f8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/lpc.h
@@ -0,0 +1,212 @@
+/*
+ * LPC utility code
+ * Copyright (c) 2006  Justin Ruggles <justin.ruggles@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_LPC_H
+#define AVCODEC_LPC_H
+
+#include <stdint.h>
+#include "libavutil/avassert.h"
+#include "libavutil/lls.h"
+#include "aac_defines.h"
+
+#define ORDER_METHOD_EST     0
+#define ORDER_METHOD_2LEVEL  1
+#define ORDER_METHOD_4LEVEL  2
+#define ORDER_METHOD_8LEVEL  3
+#define ORDER_METHOD_SEARCH  4
+#define ORDER_METHOD_LOG     5
+
+#define MIN_LPC_ORDER        1
+#define MAX_LPC_ORDER       32
+
+/**
+ * LPC analysis type
+ */
+enum FFLPCType {
+    FF_LPC_TYPE_DEFAULT     = -1, ///< use the codec default LPC type
+    FF_LPC_TYPE_NONE        =  0, ///< do not use LPC prediction or use all zero coefficients
+    FF_LPC_TYPE_FIXED       =  1, ///< fixed LPC coefficients
+    FF_LPC_TYPE_LEVINSON    =  2, ///< Levinson-Durbin recursion
+    FF_LPC_TYPE_CHOLESKY    =  3, ///< Cholesky factorization
+    FF_LPC_TYPE_NB              , ///< Not part of ABI
+};
+
+typedef struct LPCContext {
+    int blocksize;
+    int max_order;
+    enum FFLPCType lpc_type;
+    double *windowed_buffer;
+    double *windowed_samples;
+
+    /**
+     * Apply a Welch window to an array of input samples.
+     * The output samples have the same scale as the input, but are in double
+     * sample format.
+     * @param data    input samples
+     * @param len     number of input samples
+     * @param w_data  output samples
+     */
+    void (*lpc_apply_welch_window)(const int32_t *data, int len,
+                                   double *w_data);
+    /**
+     * Perform autocorrelation on input samples with delay of 0 to lag.
+     * @param data  input samples.
+     *              constraints: no alignment needed, but must have at
+     *              least lag*sizeof(double) valid bytes preceding it, and
+     *              size must be at least (len+1)*sizeof(double) if data is
+     *              16-byte aligned or (len+2)*sizeof(double) if data is
+     *              unaligned.
+     * @param len   number of input samples to process
+     * @param lag   maximum delay to calculate
+     * @param autoc output autocorrelation coefficients.
+     *              constraints: array size must be at least lag+1.
+     */
+    void (*lpc_compute_autocorr)(const double *data, int len, int lag,
+                                 double *autoc);
+
+    // TODO: these should be allocated to reduce ABI compatibility issues
+    LLSModel lls_models[2];
+} LPCContext;
+
+
+/**
+ * Calculate LPC coefficients for multiple orders
+ */
+int ff_lpc_calc_coefs(LPCContext *s,
+                      const int32_t *samples, int blocksize, int min_order,
+                      int max_order, int precision,
+                      int32_t coefs[][MAX_LPC_ORDER], int *shift,
+                      enum FFLPCType lpc_type, int lpc_passes,
+                      int omethod, int min_shift, int max_shift, int zero_shift);
+
+int ff_lpc_calc_ref_coefs(LPCContext *s,
+                          const int32_t *samples, int order, double *ref);
+
+double ff_lpc_calc_ref_coefs_f(LPCContext *s, const float *samples, int len,
+                               int order, double *ref);
+
+/**
+ * Initialize LPCContext.
+ */
+int ff_lpc_init(LPCContext *s, int blocksize, int max_order,
+                enum FFLPCType lpc_type);
+void ff_lpc_init_x86(LPCContext *s);
+
+/**
+ * Uninitialize LPCContext.
+ */
+void ff_lpc_end(LPCContext *s);
+
+#if USE_FIXED
+typedef int LPC_TYPE;
+typedef unsigned LPC_TYPE_U;
+#else
+#ifdef LPC_USE_DOUBLE
+typedef double LPC_TYPE;
+typedef double LPC_TYPE_U;
+#else
+typedef float LPC_TYPE;
+typedef float LPC_TYPE_U;
+#endif
+#endif // USE_FIXED
+
+/**
+ * Schur recursion.
+ * Produces reflection coefficients from autocorrelation data.
+ */
+static inline void compute_ref_coefs(const LPC_TYPE *autoc, int max_order,
+                                     LPC_TYPE *ref, LPC_TYPE *error)
+{
+    int i, j;
+    LPC_TYPE err;
+    LPC_TYPE gen0[MAX_LPC_ORDER], gen1[MAX_LPC_ORDER];
+
+    for (i = 0; i < max_order; i++)
+        gen0[i] = gen1[i] = autoc[i + 1];
+
+    err    = autoc[0];
+    ref[0] = -gen1[0] / err;
+    err   +=  gen1[0] * ref[0];
+    if (error)
+        error[0] = err;
+    for (i = 1; i < max_order; i++) {
+        for (j = 0; j < max_order - i; j++) {
+            gen1[j] = gen1[j + 1] + ref[i - 1] * gen0[j];
+            gen0[j] = gen1[j + 1] * ref[i - 1] + gen0[j];
+        }
+        ref[i] = -gen1[0] / err;
+        err   +=  gen1[0] * ref[i];
+        if (error)
+            error[i] = err;
+    }
+}
+
+/**
+ * Levinson-Durbin recursion.
+ * Produce LPC coefficients from autocorrelation data.
+ */
+static inline int AAC_RENAME(compute_lpc_coefs)(const LPC_TYPE *autoc, int max_order,
+                                    LPC_TYPE *lpc, int lpc_stride, int fail,
+                                    int normalize)
+{
+    int i, j;
+    LPC_TYPE err = 0;
+    LPC_TYPE *lpc_last = lpc;
+
+    av_assert2(normalize || !fail);
+
+    if (normalize)
+        err = *autoc++;
+
+    if (fail && (autoc[max_order - 1] == 0 || err <= 0))
+        return -1;
+
+    for(i=0; i<max_order; i++) {
+        LPC_TYPE r = AAC_SRA_R(-autoc[i], 5);
+
+        if (normalize) {
+            for(j=0; j<i; j++)
+                r -= lpc_last[j] * autoc[i-j-1];
+
+            r /= err;
+            err *= FIXR(1.0) - (r * r);
+        }
+
+        lpc[i] = r;
+
+        for(j=0; j < (i+1)>>1; j++) {
+            LPC_TYPE f = lpc_last[    j];
+            LPC_TYPE b = lpc_last[i-1-j];
+            lpc[    j] = f + (LPC_TYPE_U)AAC_MUL26(r, b);
+            lpc[i-1-j] = b + (LPC_TYPE_U)AAC_MUL26(r, f);
+        }
+
+        if (fail && err < 0)
+            return -1;
+
+        lpc_last = lpc;
+        lpc += lpc_stride;
+    }
+
+    return 0;
+}
+
+#endif /* AVCODEC_LPC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mathops.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mathops.h
new file mode 100644
index 000000000..1c3566431
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mathops.h
@@ -0,0 +1,251 @@
+/*
+ * simple math operations
+ * Copyright (c) 2001, 2002 Fabrice Bellard
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> et al
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef AVCODEC_MATHOPS_H
+#define AVCODEC_MATHOPS_H
+
+#include <stdint.h>
+
+#include "libavutil/common.h"
+#include "libavutil/reverse.h"
+#include "config.h"
+
+#define MAX_NEG_CROP 1024
+
+extern const uint32_t ff_inverse[257];
+extern const uint8_t ff_sqrt_tab[256];
+extern const uint8_t ff_crop_tab[256 + 2 * MAX_NEG_CROP];
+extern const uint8_t ff_zigzag_direct[64];
+extern const uint8_t ff_zigzag_scan[16+1];
+
+#if   ARCH_ARM
+#   include "arm/mathops.h"
+#elif ARCH_AVR32
+#   include "avr32/mathops.h"
+#elif ARCH_MIPS
+#   include "mips/mathops.h"
+#elif ARCH_PPC
+#   include "ppc/mathops.h"
+#elif ARCH_X86
+#   include "x86/mathops.h"
+#endif
+
+/* generic implementation */
+
+#ifndef MUL64
+#   define MUL64(a,b) ((int64_t)(a) * (int64_t)(b))
+#endif
+
+#ifndef MULL
+#   define MULL(a,b,s) (MUL64(a, b) >> (s))
+#endif
+
+#ifndef MULH
+static av_always_inline int MULH(int a, int b){
+    return MUL64(a, b) >> 32;
+}
+#endif
+
+#ifndef UMULH
+static av_always_inline unsigned UMULH(unsigned a, unsigned b){
+    return ((uint64_t)(a) * (uint64_t)(b))>>32;
+}
+#endif
+
+#ifndef MAC64
+#   define MAC64(d, a, b) ((d) += MUL64(a, b))
+#endif
+
+#ifndef MLS64
+#   define MLS64(d, a, b) ((d) -= MUL64(a, b))
+#endif
+
+/* signed 16x16 -> 32 multiply add accumulate */
+#ifndef MAC16
+#   define MAC16(rt, ra, rb) rt += (ra) * (rb)
+#endif
+
+/* signed 16x16 -> 32 multiply */
+#ifndef MUL16
+#   define MUL16(ra, rb) ((ra) * (rb))
+#endif
+
+#ifndef MLS16
+#   define MLS16(rt, ra, rb) ((rt) -= (ra) * (rb))
+#endif
+
+/* median of 3 */
+#ifndef mid_pred
+#define mid_pred mid_pred
+static inline av_const int mid_pred(int a, int b, int c)
+{
+    if(a>b){
+        if(c>b){
+            if(c>a) b=a;
+            else    b=c;
+        }
+    }else{
+        if(b>c){
+            if(c>a) b=c;
+            else    b=a;
+        }
+    }
+    return b;
+}
+#endif
+
+#ifndef median4
+#define median4 median4
+static inline av_const int median4(int a, int b, int c, int d)
+{
+    if (a < b) {
+        if (c < d) return (FFMIN(b, d) + FFMAX(a, c)) / 2;
+        else       return (FFMIN(b, c) + FFMAX(a, d)) / 2;
+    } else {
+        if (c < d) return (FFMIN(a, d) + FFMAX(b, c)) / 2;
+        else       return (FFMIN(a, c) + FFMAX(b, d)) / 2;
+    }
+}
+#endif
+
+#ifndef sign_extend
+static inline av_const int sign_extend(int val, unsigned bits)
+{
+    unsigned shift = 8 * sizeof(int) - bits;
+    union { unsigned u; int s; } v = { (unsigned) val << shift };
+    return v.s >> shift;
+}
+#endif
+
+#ifndef zero_extend
+static inline av_const unsigned zero_extend(unsigned val, unsigned bits)
+{
+    return (val << ((8 * sizeof(int)) - bits)) >> ((8 * sizeof(int)) - bits);
+}
+#endif
+
+#ifndef COPY3_IF_LT
+#define COPY3_IF_LT(x, y, a, b, c, d)\
+if ((y) < (x)) {\
+    (x) = (y);\
+    (a) = (b);\
+    (c) = (d);\
+}
+#endif
+
+#ifndef MASK_ABS
+#define MASK_ABS(mask, level) do {              \
+        mask  = level >> 31;                    \
+        level = (level ^ mask) - mask;          \
+    } while (0)
+#endif
+
+#ifndef NEG_SSR32
+#   define NEG_SSR32(a,s) ((( int32_t)(a))>>(32-(s)))
+#endif
+
+#ifndef NEG_USR32
+#   define NEG_USR32(a,s) (((uint32_t)(a))>>(32-(s)))
+#endif
+
+#if HAVE_BIGENDIAN
+# ifndef PACK_2U8
+#   define PACK_2U8(a,b)     (((a) <<  8) | (b))
+# endif
+# ifndef PACK_4U8
+#   define PACK_4U8(a,b,c,d) (((a) << 24) | ((b) << 16) | ((c) << 8) | (d))
+# endif
+# ifndef PACK_2U16
+#   define PACK_2U16(a,b)    (((a) << 16) | (b))
+# endif
+#else
+# ifndef PACK_2U8
+#   define PACK_2U8(a,b)     (((b) <<  8) | (a))
+# endif
+# ifndef PACK_4U2
+#   define PACK_4U8(a,b,c,d) (((d) << 24) | ((c) << 16) | ((b) << 8) | (a))
+# endif
+# ifndef PACK_2U16
+#   define PACK_2U16(a,b)    (((b) << 16) | (a))
+# endif
+#endif
+
+#ifndef PACK_2S8
+#   define PACK_2S8(a,b)     PACK_2U8((a)&255, (b)&255)
+#endif
+#ifndef PACK_4S8
+#   define PACK_4S8(a,b,c,d) PACK_4U8((a)&255, (b)&255, (c)&255, (d)&255)
+#endif
+#ifndef PACK_2S16
+#   define PACK_2S16(a,b)    PACK_2U16((a)&0xffff, (b)&0xffff)
+#endif
+
+#ifndef FASTDIV
+#   define FASTDIV(a,b) ((uint32_t)((((uint64_t)a) * ff_inverse[b]) >> 32))
+#endif /* FASTDIV */
+
+#ifndef ff_sqrt
+#define ff_sqrt ff_sqrt
+static inline av_const unsigned int ff_sqrt(unsigned int a)
+{
+    unsigned int b;
+
+    if (a < 255) return (ff_sqrt_tab[a + 1] - 1) >> 4;
+    else if (a < (1 << 12)) b = ff_sqrt_tab[a >> 4] >> 2;
+#if !CONFIG_SMALL
+    else if (a < (1 << 14)) b = ff_sqrt_tab[a >> 6] >> 1;
+    else if (a < (1 << 16)) b = ff_sqrt_tab[a >> 8]   ;
+#endif
+    else {
+        int s = av_log2_16bit(a >> 16) >> 1;
+        unsigned int c = a >> (s + 2);
+        b = ff_sqrt_tab[c >> (s + 8)];
+        b = FASTDIV(c,b) + (b << s);
+    }
+
+    return b - (a < b * b);
+}
+#endif
+
+static inline av_const float ff_sqrf(float a)
+{
+    return a*a;
+}
+
+static inline int8_t ff_u8_to_s8(uint8_t a)
+{
+    union {
+        uint8_t u8;
+        int8_t  s8;
+    } b;
+    b.u8 = a;
+    return b.s8;
+}
+
+static av_always_inline uint32_t bitswap_32(uint32_t x)
+{
+    return (uint32_t)ff_reverse[ x        & 0xFF] << 24 |
+           (uint32_t)ff_reverse[(x >> 8)  & 0xFF] << 16 |
+           (uint32_t)ff_reverse[(x >> 16) & 0xFF] << 8  |
+           (uint32_t)ff_reverse[ x >> 24];
+}
+
+#endif /* AVCODEC_MATHOPS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mathtables.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mathtables.c
new file mode 100644
index 000000000..81eabc7a6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mathtables.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "mathops.h"
+
+/* a*inverse[b]>>32 == a/b for all 0<=a<=16909558 && 2<=b<=256
+ * for a>16909558, is an overestimate by less than 1 part in 1<<24 */
+const uint32_t ff_inverse[257]={
+         0, 4294967295U,2147483648U,1431655766, 1073741824,  858993460,  715827883,  613566757,
+ 536870912,  477218589,  429496730,  390451573,  357913942,  330382100,  306783379,  286331154,
+ 268435456,  252645136,  238609295,  226050911,  214748365,  204522253,  195225787,  186737709,
+ 178956971,  171798692,  165191050,  159072863,  153391690,  148102321,  143165577,  138547333,
+ 134217728,  130150525,  126322568,  122713352,  119304648,  116080198,  113025456,  110127367,
+ 107374183,  104755300,  102261127,   99882961,   97612894,   95443718,   93368855,   91382283,
+  89478486,   87652394,   85899346,   84215046,   82595525,   81037119,   79536432,   78090315,
+  76695845,   75350304,   74051161,   72796056,   71582789,   70409300,   69273667,   68174085,
+  67108864,   66076420,   65075263,   64103990,   63161284,   62245903,   61356676,   60492498,
+  59652324,   58835169,   58040099,   57266231,   56512728,   55778797,   55063684,   54366675,
+  53687092,   53024288,   52377650,   51746594,   51130564,   50529028,   49941481,   49367441,
+  48806447,   48258060,   47721859,   47197443,   46684428,   46182445,   45691142,   45210183,
+  44739243,   44278014,   43826197,   43383509,   42949673,   42524429,   42107523,   41698712,
+  41297763,   40904451,   40518560,   40139882,   39768216,   39403370,   39045158,   38693400,
+  38347923,   38008561,   37675152,   37347542,   37025581,   36709123,   36398028,   36092163,
+  35791395,   35495598,   35204650,   34918434,   34636834,   34359739,   34087043,   33818641,
+  33554432,   33294321,   33038210,   32786010,   32537632,   32292988,   32051995,   31814573,
+  31580642,   31350127,   31122952,   30899046,   30678338,   30460761,   30246249,   30034737,
+  29826162,   29620465,   29417585,   29217465,   29020050,   28825284,   28633116,   28443493,
+  28256364,   28071682,   27889399,   27709467,   27531842,   27356480,   27183338,   27012373,
+  26843546,   26676816,   26512144,   26349493,   26188825,   26030105,   25873297,   25718368,
+  25565282,   25414008,   25264514,   25116768,   24970741,   24826401,   24683721,   24542671,
+  24403224,   24265352,   24129030,   23994231,   23860930,   23729102,   23598722,   23469767,
+  23342214,   23216040,   23091223,   22967740,   22845571,   22724695,   22605092,   22486740,
+  22369622,   22253717,   22139007,   22025474,   21913099,   21801865,   21691755,   21582751,
+  21474837,   21367997,   21262215,   21157475,   21053762,   20951060,   20849356,   20748635,
+  20648882,   20550083,   20452226,   20355296,   20259280,   20164166,   20069941,   19976593,
+  19884108,   19792477,   19701685,   19611723,   19522579,   19434242,   19346700,   19259944,
+  19173962,   19088744,   19004281,   18920561,   18837576,   18755316,   18673771,   18592933,
+  18512791,   18433337,   18354562,   18276457,   18199014,   18122225,   18046082,   17970575,
+  17895698,   17821442,   17747799,   17674763,   17602325,   17530479,   17459217,   17388532,
+  17318417,   17248865,   17179870,   17111424,   17043522,   16976156,   16909321,   16843010,
+  16777216
+};
+
+const uint8_t ff_sqrt_tab[256]={
+  0, 16, 23, 28, 32, 36, 40, 43, 46, 48, 51, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 77, 79, 80, 82, 84, 85, 87, 88, 90,
+ 91, 92, 94, 95, 96, 98, 99,100,102,103,104,105,107,108,109,110,111,112,114,115,116,117,118,119,120,121,122,123,124,125,126,127,
+128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,144,145,146,147,148,149,150,151,151,152,153,154,155,156,156,
+157,158,159,160,160,161,162,163,164,164,165,166,167,168,168,169,170,171,171,172,173,174,174,175,176,176,177,178,179,179,180,181,
+182,182,183,184,184,185,186,186,187,188,188,189,190,190,191,192,192,193,194,194,195,196,196,197,198,198,199,200,200,201,202,202,
+203,204,204,205,205,206,207,207,208,208,209,210,210,211,212,212,213,213,214,215,215,216,216,217,218,218,219,219,220,220,221,222,
+222,223,223,224,224,225,226,226,227,227,228,228,229,230,230,231,231,232,232,233,233,234,235,235,236,236,237,237,238,238,239,239,
+240,240,241,242,242,243,243,244,244,245,245,246,246,247,247,248,248,249,249,250,250,251,251,252,252,253,253,254,254,255,255,255
+};
+
+#define times4(x) x, x, x, x
+#define times256(x) times4(times4(times4(times4(times4(x)))))
+
+const uint8_t ff_crop_tab[256 + 2 * MAX_NEG_CROP] = {
+times256(0x00),
+0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
+0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
+0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,
+0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,
+0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,
+0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0x5B,0x5C,0x5D,0x5E,0x5F,
+0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
+0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
+0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,
+0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,
+0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,
+0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF,
+0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,
+0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
+0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
+0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,
+times256(0xFF)
+};
+
+const uint8_t ff_zigzag_direct[64] = {
+    0,   1,  8, 16,  9,  2,  3, 10,
+    17, 24, 32, 25, 18, 11,  4,  5,
+    12, 19, 26, 33, 40, 48, 41, 34,
+    27, 20, 13,  6,  7, 14, 21, 28,
+    35, 42, 49, 56, 57, 50, 43, 36,
+    29, 22, 15, 23, 30, 37, 44, 51,
+    58, 59, 52, 45, 38, 31, 39, 46,
+    53, 60, 61, 54, 47, 55, 62, 63
+};
+
+const uint8_t ff_zigzag_scan[16+1] = {
+    0 + 0 * 4, 1 + 0 * 4, 0 + 1 * 4, 0 + 2 * 4,
+    1 + 1 * 4, 2 + 0 * 4, 3 + 0 * 4, 2 + 1 * 4,
+    1 + 2 * 4, 0 + 3 * 4, 1 + 3 * 4, 2 + 2 * 4,
+    3 + 1 * 4, 3 + 2 * 4, 2 + 3 * 4, 3 + 3 * 4,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct15.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct15.asm
new file mode 100644
index 000000000..2a2cdbd21
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct15.asm
@@ -0,0 +1,221 @@
+;******************************************************************************
+;* SIMD optimized non-power-of-two MDCT functions
+;*
+;* Copyright (C) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION_RODATA 32
+
+perm_neg: dd 2, 5, 3, 4, 6, 1, 7, 0
+perm_pos: dd 0, 7, 1, 6, 4, 3, 5, 2
+sign_adjust_r: times 4 dd 0x80000000, 0x00000000
+
+sign_adjust_5: dd 0x00000000, 0x80000000, 0x80000000, 0x00000000
+
+SECTION .text
+
+%if ARCH_X86_64
+
+;*****************************************************************************************
+;void ff_fft15_avx(FFTComplex *out, FFTComplex *in, FFTComplex *exptab, ptrdiff_t stride);
+;*****************************************************************************************
+%macro FFT5 3 ; %1 - in_offset, %2 - dst1 (64bit used), %3 - dst2
+    VBROADCASTSD m0, [inq + %1]         ; in[ 0].re, in[ 0].im, in[ 0].re, in[ 0].im
+    movsd   xm1, [inq + 1*16 +  8 + %1] ; in[ 3].re, in[ 3].im,         0,         0
+    movsd   xm4, [inq + 6*16 +  0 + %1] ; in[12].re, in[12].im,         0,         0
+    movhps  xm1, [inq + 3*16 +  0 + %1] ; in[ 3].re, in[ 3].im, in[ 6].re, in[ 6].im
+    movhps  xm4, [inq + 4*16 +  8 + %1] ; in[12].re, in[12].im, in[ 9].re, in[ 9].im
+
+    subps       xm2,  xm1, xm4          ; t[2].im, t[2].re, t[3].im, t[3].re
+    addps       xm1,  xm4               ; t[0].re, t[0].im, t[1].re, t[1].im
+
+    movhlps     %2,   xm1               ; t[0].re, t[1].re, t[0].im, t[1].im
+    addps       %2,   xm1
+    addps       %2,   xm0               ; DC[0].re, DC[0].im, junk...
+    movlhps     %2,   %2                ; DC[0].re, DC[0].im, DC[0].re, DC[0].im
+
+    shufps      xm3,  xm1, xm2, q0110   ; t[0].re, t[0].im, t[2].re, t[2].im
+    shufps      xm1,  xm2, q2332        ; t[1].re, t[1].im, t[3].re, t[3].im
+
+    mulps       xm%3, xm1, xm5
+    mulps       xm4,  xm3, xm6
+    mulps       xm1,  xm6
+
+    xorps       xm1,  xm7
+    mulps       xm3,  xm5
+    addsubps    xm3,  xm1               ; t[0].re, t[0].im, t[2].re, t[2].im
+    subps       xm%3, xm4               ; t[4].re, t[4].im, t[5].re, t[5].im
+
+    movhlps     xm2, xm%3, xm3          ; t[2].re, t[2].im, t[5].re, t[5].im
+    movlhps     xm3, xm%3               ; t[0].re, t[0].im, t[4].re, t[4].im
+
+    xorps       xm2,  xm7
+    addps       xm%3, xm2, xm3
+    subps       xm3,  xm2
+
+    shufps      xm3,  xm3, q1032
+    vinsertf128 m%3,  m%3, xm3, 1       ; All ACs (tmp[1] through to tmp[4])
+    addps       m%3,  m%3,  m0          ; Finally offset with DCs
+%endmacro
+
+%macro BUTTERFLIES_DC 1 ; %1 - exptab_offset
+    mulps xm0,  xm9, [exptabq + %1 + 16*0]
+    mulps xm1, xm10, [exptabq + %1 + 16*1]
+
+    haddps  xm0,  xm1
+    movhlps xm1,  xm0                   ; t[0].re, t[1].re, t[0].im, t[1].im
+
+    addps   xm0,  xm1
+    addps   xm0,  xm8
+
+    movsd [outq], xm0
+%endmacro
+
+%macro BUTTERFLIES_AC 1 ; %1 - exptab_offset
+    mulps  m0, m12, [exptabq + 64*0 + 0*mmsize + %1]
+    mulps  m1, m12, [exptabq + 64*0 + 1*mmsize + %1]
+    mulps  m2, m13, [exptabq + 64*1 + 0*mmsize + %1]
+    mulps  m3, m13, [exptabq + 64*1 + 1*mmsize + %1]
+
+    addps  m0, m0, m2
+    addps  m1, m1, m3
+    addps  m0, m0, m11
+
+    shufps m1, m1, m1, q2301
+    addps  m0, m0, m1
+
+    vextractf128 xm1, m0, 1
+
+    movlps [outq + strideq*1], xm0
+    movhps [outq + strideq*2], xm0
+    movlps [outq +  stride3q], xm1
+    movhps [outq + strideq*4], xm1
+%endmacro
+
+INIT_YMM avx
+cglobal fft15, 4, 5, 14, out, in, exptab, stride, stride5
+    shl strideq, 3
+
+    movaps xm5, [exptabq + 480 + 16*0]
+    movaps xm6, [exptabq + 480 + 16*1]
+    movaps xm7, [sign_adjust_5]
+
+    FFT5  0,  xm8, 11
+    FFT5  8,  xm9, 12
+    FFT5 16, xm10, 13
+
+%define stride3q inq
+    lea stride3q, [strideq + strideq*2]
+    lea stride5q, [strideq + strideq*4]
+
+    BUTTERFLIES_DC (8*6 + 4*0)*2*4
+    BUTTERFLIES_AC (8*0 + 0*0)*2*4
+
+    add outq, stride5q
+    BUTTERFLIES_DC (8*6 + 4*1)*2*4
+    BUTTERFLIES_AC (8*2 + 0*0)*2*4
+
+    add outq, stride5q
+    BUTTERFLIES_DC (8*6 + 4*2)*2*4
+    BUTTERFLIES_AC (8*4 + 0*0)*2*4
+
+    RET
+
+%endif ; ARCH_X86_64
+
+;*******************************************************************************************************
+;void ff_mdct15_postreindex(FFTComplex *out, FFTComplex *in, FFTComplex *exp, int *lut, ptrdiff_t len8);
+;*******************************************************************************************************
+%macro LUT_LOAD_4D 3
+    mov      r4d, [lutq + %3q*4 +  0]
+    movsd  xmm%1, [inq +  r4q*8]
+    mov      r4d, [lutq + %3q*4 +  4]
+    movhps xmm%1, [inq +  r4q*8]
+%if cpuflag(avx2)
+    mov      r4d, [lutq + %3q*4 +  8]
+    movsd     %2, [inq +  r4q*8]
+    mov      r4d, [lutq + %3q*4 + 12]
+    movhps    %2, [inq +  r4q*8]
+    vinsertf128 %1, %1, %2, 1
+%endif
+%endmacro
+
+%macro POSTROTATE_FN 1
+cglobal mdct15_postreindex, 5, 7, 8 + cpuflag(avx2)*2, out, in, exp, lut, len8, offset_p, offset_n
+
+    xor offset_nq, offset_nq
+    lea offset_pq, [len8q*2 - %1]
+
+    movaps m7,  [sign_adjust_r]
+
+%if cpuflag(avx2)
+    movaps   m8, [perm_pos]
+    movaps   m9, [perm_neg]
+%endif
+
+.loop:
+    movups m0, [expq + offset_pq*8]     ; exp[p0].re, exp[p0].im, exp[p1].re, exp[p1].im, exp[p2].re, exp[p2].im, exp[p3].re, exp[p3].im
+    movups m1, [expq + offset_nq*8]     ; exp[n3].re, exp[n3].im, exp[n2].re, exp[n2].im, exp[n1].re, exp[n1].im, exp[n0].re, exp[n0].im
+
+    LUT_LOAD_4D m3, xm4, offset_p       ; in[p0].re, in[p0].im, in[p1].re, in[p1].im, in[p2].re, in[p2].im, in[p3].re, in[p3].im
+    LUT_LOAD_4D m4, xm5, offset_n       ; in[n3].re, in[n3].im, in[n2].re, in[n2].im, in[n1].re, in[n1].im, in[n0].re, in[n0].im
+
+    mulps  m5, m3, m0                   ; in[p].reim * exp[p].reim
+    mulps  m6, m4, m1                   ; in[n].reim * exp[n].reim
+
+    xorps  m5, m7                       ; in[p].re *= -1, in[p].im *= 1
+    xorps  m6, m7                       ; in[n].re *= -1, in[n].im *= 1
+
+    shufps m3, m3, m3, q2301            ; in[p].imre
+    shufps m4, m4, m4, q2301            ; in[n].imre
+
+    mulps  m3, m0                       ; in[p].imre * exp[p].reim
+    mulps  m4, m1                       ; in[n].imre * exp[n].reim
+
+    haddps m3, m6                       ; out[n0].im, out[n1].im, out[n3].re, out[n2].re, out[n2].im, out[n3].im, out[n1].re, out[n0].re
+    haddps m5, m4                       ; out[p0].re, out[p1].re, out[p3].im, out[p2].im, out[p2].re, out[p3].re, out[p1].im, out[p0].im
+
+%if cpuflag(avx2)
+    vpermps m3, m9, m3                  ; out[n3].im, out[n3].re, out[n2].im, out[n2].re, out[n1].im, out[n1].re, out[n0].im, out[n0].re
+    vpermps m5, m8, m5                  ; out[p0].re, out[p0].im, out[p1].re, out[p1].im, out[p2].re, out[p2].im, out[p3].re, out[p3].im
+%else
+    shufps m3, m3, m3, q0312
+    shufps m5, m5, m5, q2130
+%endif
+
+    movups [outq + offset_nq*8], m3
+    movups [outq + offset_pq*8], m5
+
+    sub offset_pq, %1
+    add offset_nq, %1
+    cmp offset_nq, offset_pq
+    jle .loop
+
+    REP_RET
+%endmacro
+
+INIT_XMM sse3
+POSTROTATE_FN 2
+
+%if ARCH_X86_64 && HAVE_AVX2_EXTERNAL
+INIT_YMM avx2
+POSTROTATE_FN 4
+%endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct15.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct15.c
new file mode 100644
index 000000000..6f35059bf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct15.c
@@ -0,0 +1,329 @@
+/*
+ * Copyright (c) 2013-2014 Mozilla Corporation
+ * Copyright (c) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Celt non-power of 2 iMDCT
+ */
+
+#include <float.h>
+#include <math.h>
+#include <stddef.h>
+
+#include "config.h"
+
+#include "libavutil/attributes.h"
+#include "libavutil/common.h"
+
+#include "mdct15.h"
+
+#define FFT_FLOAT 1
+#include "fft-internal.h"
+
+#define CMUL3(c, a, b) CMUL((c).re, (c).im, (a).re, (a).im, (b).re, (b).im)
+
+av_cold void ff_mdct15_uninit(MDCT15Context **ps)
+{
+    MDCT15Context *s = *ps;
+
+    if (!s)
+        return;
+
+    ff_fft_end(&s->ptwo_fft);
+
+    av_freep(&s->pfa_prereindex);
+    av_freep(&s->pfa_postreindex);
+    av_freep(&s->twiddle_exptab);
+    av_freep(&s->tmp);
+
+    av_freep(ps);
+}
+
+static inline int init_pfa_reindex_tabs(MDCT15Context *s)
+{
+    int i, j;
+    const int b_ptwo = s->ptwo_fft.nbits; /* Bits for the power of two FFTs */
+    const int l_ptwo = 1 << b_ptwo; /* Total length for the power of two FFTs */
+    const int inv_1 = l_ptwo << ((4 - b_ptwo) & 3); /* (2^b_ptwo)^-1 mod 15 */
+    const int inv_2 = 0xeeeeeeef & ((1U << b_ptwo) - 1); /* 15^-1 mod 2^b_ptwo */
+
+    s->pfa_prereindex = av_malloc_array(15 * l_ptwo, sizeof(*s->pfa_prereindex));
+    if (!s->pfa_prereindex)
+        return 1;
+
+    s->pfa_postreindex = av_malloc_array(15 * l_ptwo, sizeof(*s->pfa_postreindex));
+    if (!s->pfa_postreindex)
+        return 1;
+
+    /* Pre/Post-reindex */
+    for (i = 0; i < l_ptwo; i++) {
+        for (j = 0; j < 15; j++) {
+            const int q_pre = ((l_ptwo * j)/15 + i) >> b_ptwo;
+            const int q_post = (((j*inv_1)/15) + (i*inv_2)) >> b_ptwo;
+            const int k_pre = 15*i + (j - q_pre*15)*(1 << b_ptwo);
+            const int k_post = i*inv_2*15 + j*inv_1 - 15*q_post*l_ptwo;
+            s->pfa_prereindex[i*15 + j] = k_pre << 1;
+            s->pfa_postreindex[k_post] = l_ptwo*j + i;
+        }
+    }
+
+    return 0;
+}
+
+/* Stride is hardcoded to 3 */
+static inline void fft5(FFTComplex *out, FFTComplex *in, FFTComplex exptab[2])
+{
+    FFTComplex z0[4], t[6];
+
+    t[0].re = in[3].re + in[12].re;
+    t[0].im = in[3].im + in[12].im;
+    t[1].im = in[3].re - in[12].re;
+    t[1].re = in[3].im - in[12].im;
+    t[2].re = in[6].re + in[ 9].re;
+    t[2].im = in[6].im + in[ 9].im;
+    t[3].im = in[6].re - in[ 9].re;
+    t[3].re = in[6].im - in[ 9].im;
+
+    out[0].re = in[0].re + in[3].re + in[6].re + in[9].re + in[12].re;
+    out[0].im = in[0].im + in[3].im + in[6].im + in[9].im + in[12].im;
+
+    t[4].re = exptab[0].re * t[2].re - exptab[1].re * t[0].re;
+    t[4].im = exptab[0].re * t[2].im - exptab[1].re * t[0].im;
+    t[0].re = exptab[0].re * t[0].re - exptab[1].re * t[2].re;
+    t[0].im = exptab[0].re * t[0].im - exptab[1].re * t[2].im;
+    t[5].re = exptab[0].im * t[3].re - exptab[1].im * t[1].re;
+    t[5].im = exptab[0].im * t[3].im - exptab[1].im * t[1].im;
+    t[1].re = exptab[0].im * t[1].re + exptab[1].im * t[3].re;
+    t[1].im = exptab[0].im * t[1].im + exptab[1].im * t[3].im;
+
+    z0[0].re = t[0].re - t[1].re;
+    z0[0].im = t[0].im - t[1].im;
+    z0[1].re = t[4].re + t[5].re;
+    z0[1].im = t[4].im + t[5].im;
+
+    z0[2].re = t[4].re - t[5].re;
+    z0[2].im = t[4].im - t[5].im;
+    z0[3].re = t[0].re + t[1].re;
+    z0[3].im = t[0].im + t[1].im;
+
+    out[1].re = in[0].re + z0[3].re;
+    out[1].im = in[0].im + z0[0].im;
+    out[2].re = in[0].re + z0[2].re;
+    out[2].im = in[0].im + z0[1].im;
+    out[3].re = in[0].re + z0[1].re;
+    out[3].im = in[0].im + z0[2].im;
+    out[4].re = in[0].re + z0[0].re;
+    out[4].im = in[0].im + z0[3].im;
+}
+
+static void fft15_c(FFTComplex *out, FFTComplex *in, FFTComplex *exptab, ptrdiff_t stride)
+{
+    int k;
+    FFTComplex tmp1[5], tmp2[5], tmp3[5];
+
+    fft5(tmp1, in + 0, exptab + 19);
+    fft5(tmp2, in + 1, exptab + 19);
+    fft5(tmp3, in + 2, exptab + 19);
+
+    for (k = 0; k < 5; k++) {
+        FFTComplex t[2];
+
+        CMUL3(t[0], tmp2[k], exptab[k]);
+        CMUL3(t[1], tmp3[k], exptab[2 * k]);
+        out[stride*k].re = tmp1[k].re + t[0].re + t[1].re;
+        out[stride*k].im = tmp1[k].im + t[0].im + t[1].im;
+
+        CMUL3(t[0], tmp2[k], exptab[k + 5]);
+        CMUL3(t[1], tmp3[k], exptab[2 * (k + 5)]);
+        out[stride*(k + 5)].re = tmp1[k].re + t[0].re + t[1].re;
+        out[stride*(k + 5)].im = tmp1[k].im + t[0].im + t[1].im;
+
+        CMUL3(t[0], tmp2[k], exptab[k + 10]);
+        CMUL3(t[1], tmp3[k], exptab[2 * k + 5]);
+        out[stride*(k + 10)].re = tmp1[k].re + t[0].re + t[1].re;
+        out[stride*(k + 10)].im = tmp1[k].im + t[0].im + t[1].im;
+    }
+}
+
+static void mdct15(MDCT15Context *s, float *dst, const float *src, ptrdiff_t stride)
+{
+    int i, j;
+    const int len4 = s->len4, len3 = len4 * 3, len8 = len4 >> 1;
+    const int l_ptwo = 1 << s->ptwo_fft.nbits;
+    FFTComplex fft15in[15];
+
+    /* Folding and pre-reindexing */
+    for (i = 0; i < l_ptwo; i++) {
+        for (j = 0; j < 15; j++) {
+            const int k = s->pfa_prereindex[i*15 + j];
+            FFTComplex tmp, exp = s->twiddle_exptab[k >> 1];
+            if (k < len4) {
+                tmp.re = -src[ len4 + k] + src[1*len4 - 1 - k];
+                tmp.im = -src[ len3 + k] - src[1*len3 - 1 - k];
+            } else {
+                tmp.re = -src[ len4 + k] - src[5*len4 - 1 - k];
+                tmp.im =  src[-len4 + k] - src[1*len3 - 1 - k];
+            }
+            CMUL(fft15in[j].im, fft15in[j].re, tmp.re, tmp.im, exp.re, exp.im);
+        }
+        s->fft15(s->tmp + s->ptwo_fft.revtab[i], fft15in, s->exptab, l_ptwo);
+    }
+
+    /* Then a 15xN FFT (where N is a power of two) */
+    for (i = 0; i < 15; i++)
+        s->ptwo_fft.fft_calc(&s->ptwo_fft, s->tmp + l_ptwo*i);
+
+    /* Reindex again, apply twiddles and output */
+    for (i = 0; i < len8; i++) {
+        const int i0 = len8 + i, i1 = len8 - i - 1;
+        const int s0 = s->pfa_postreindex[i0], s1 = s->pfa_postreindex[i1];
+
+        CMUL(dst[2*i1*stride + stride], dst[2*i0*stride], s->tmp[s0].re, s->tmp[s0].im,
+             s->twiddle_exptab[i0].im, s->twiddle_exptab[i0].re);
+        CMUL(dst[2*i0*stride + stride], dst[2*i1*stride], s->tmp[s1].re, s->tmp[s1].im,
+             s->twiddle_exptab[i1].im, s->twiddle_exptab[i1].re);
+    }
+}
+
+static void imdct15_half(MDCT15Context *s, float *dst, const float *src,
+                         ptrdiff_t stride)
+{
+    FFTComplex fft15in[15];
+    FFTComplex *z = (FFTComplex *)dst;
+    int i, j, len8 = s->len4 >> 1, l_ptwo = 1 << s->ptwo_fft.nbits;
+    const float *in1 = src, *in2 = src + (s->len2 - 1) * stride;
+
+    /* Reindex input, putting it into a buffer and doing an Nx15 FFT */
+    for (i = 0; i < l_ptwo; i++) {
+        for (j = 0; j < 15; j++) {
+            const int k = s->pfa_prereindex[i*15 + j];
+            FFTComplex tmp = { in2[-k*stride], in1[k*stride] };
+            CMUL3(fft15in[j], tmp, s->twiddle_exptab[k >> 1]);
+        }
+        s->fft15(s->tmp + s->ptwo_fft.revtab[i], fft15in, s->exptab, l_ptwo);
+    }
+
+    /* Then a 15xN FFT (where N is a power of two) */
+    for (i = 0; i < 15; i++)
+        s->ptwo_fft.fft_calc(&s->ptwo_fft, s->tmp + l_ptwo*i);
+
+    /* Reindex again, apply twiddles and output */
+    s->postreindex(z, s->tmp, s->twiddle_exptab, s->pfa_postreindex, len8);
+}
+
+static void postrotate_c(FFTComplex *out, FFTComplex *in, FFTComplex *exp,
+                         int *lut, ptrdiff_t len8)
+{
+    int i;
+
+    /* Reindex again, apply twiddles and output */
+    for (i = 0; i < len8; i++) {
+        const int i0 = len8 + i, i1 = len8 - i - 1;
+        const int s0 = lut[i0], s1 = lut[i1];
+
+        CMUL(out[i1].re, out[i0].im, in[s1].im, in[s1].re, exp[i1].im, exp[i1].re);
+        CMUL(out[i0].re, out[i1].im, in[s0].im, in[s0].re, exp[i0].im, exp[i0].re);
+    }
+}
+
+av_cold int ff_mdct15_init(MDCT15Context **ps, int inverse, int N, double scale)
+{
+    MDCT15Context *s;
+    double alpha, theta;
+    int len2 = 15 * (1 << N);
+    int len  = 2 * len2;
+    int i;
+
+    /* Tested and verified to work on everything in between */
+    if ((N < 2) || (N > 13))
+        return AVERROR(EINVAL);
+
+    s = av_mallocz(sizeof(*s));
+    if (!s)
+        return AVERROR(ENOMEM);
+
+    s->fft_n       = N - 1;
+    s->len4        = len2 / 2;
+    s->len2        = len2;
+    s->inverse     = inverse;
+    s->fft15       = fft15_c;
+    s->mdct        = mdct15;
+    s->imdct_half  = imdct15_half;
+    s->postreindex = postrotate_c;
+
+    if (ff_fft_init(&s->ptwo_fft, N - 1, s->inverse) < 0)
+        goto fail;
+
+    if (init_pfa_reindex_tabs(s))
+        goto fail;
+
+    s->tmp  = av_malloc_array(len, 2 * sizeof(*s->tmp));
+    if (!s->tmp)
+        goto fail;
+
+    s->twiddle_exptab = av_malloc_array(s->len4, sizeof(*s->twiddle_exptab));
+    if (!s->twiddle_exptab)
+        goto fail;
+
+    theta = 0.125f + (scale < 0 ? s->len4 : 0);
+    scale = sqrt(fabs(scale));
+    for (i = 0; i < s->len4; i++) {
+        alpha = 2 * M_PI * (i + theta) / len;
+        s->twiddle_exptab[i].re = cosf(alpha) * scale;
+        s->twiddle_exptab[i].im = sinf(alpha) * scale;
+    }
+
+    /* 15-point FFT exptab */
+    for (i = 0; i < 19; i++) {
+        if (i < 15) {
+            double theta = (2.0f * M_PI * i) / 15.0f;
+            if (!s->inverse)
+                theta *= -1;
+            s->exptab[i].re = cosf(theta);
+            s->exptab[i].im = sinf(theta);
+        } else { /* Wrap around to simplify fft15 */
+            s->exptab[i] = s->exptab[i - 15];
+        }
+    }
+
+    /* 5-point FFT exptab */
+    s->exptab[19].re = cosf(2.0f * M_PI / 5.0f);
+    s->exptab[19].im = sinf(2.0f * M_PI / 5.0f);
+    s->exptab[20].re = cosf(1.0f * M_PI / 5.0f);
+    s->exptab[20].im = sinf(1.0f * M_PI / 5.0f);
+
+    /* Invert the phase for an inverse transform, do nothing for a forward transform */
+    if (s->inverse) {
+        s->exptab[19].im *= -1;
+        s->exptab[20].im *= -1;
+    }
+
+    if (ARCH_X86)
+        ff_mdct15_init_x86(s);
+
+    *ps = s;
+
+    return 0;
+
+fail:
+    ff_mdct15_uninit(&s);
+    return AVERROR(ENOMEM);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct15.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct15.h
new file mode 100644
index 000000000..42e60f3e1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct15.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MDCT15_H
+#define AVCODEC_MDCT15_H
+
+#include <stddef.h>
+
+#include "fft.h"
+
+typedef struct MDCT15Context {
+    int fft_n;
+    int len2;
+    int len4;
+    int inverse;
+    int *pfa_prereindex;
+    int *pfa_postreindex;
+
+    FFTContext ptwo_fft;
+    FFTComplex *tmp;
+    FFTComplex *twiddle_exptab;
+
+    DECLARE_ALIGNED(32, FFTComplex, exptab)[64];
+
+    /* 15-point FFT */
+    void (*fft15)(FFTComplex *out, FFTComplex *in, FFTComplex *exptab, ptrdiff_t stride);
+
+    /* PFA postrotate and exptab */
+    void (*postreindex)(FFTComplex *out, FFTComplex *in, FFTComplex *exp, int *lut, ptrdiff_t len8);
+
+    /* Calculate a full 2N -> N MDCT */
+    void (*mdct)(struct MDCT15Context *s, float *dst, const float *src, ptrdiff_t stride);
+
+    /* Calculate the middle half of the iMDCT */
+    void (*imdct_half)(struct MDCT15Context *s, float *dst, const float *src,
+                       ptrdiff_t stride);
+} MDCT15Context;
+
+/* Init an (i)MDCT of the length 2 * 15 * (2^N) */
+int ff_mdct15_init(MDCT15Context **ps, int inverse, int N, double scale);
+void ff_mdct15_uninit(MDCT15Context **ps);
+
+void ff_mdct15_init_x86(MDCT15Context *s);
+
+#endif /* AVCODEC_MDCT15_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct15_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct15_init.c
new file mode 100644
index 000000000..444801d9c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct15_init.c
@@ -0,0 +1,99 @@
+/*
+ * SIMD optimized non-power-of-two MDCT functions
+ *
+ * Copyright (C) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/mdct15.h"
+
+void ff_mdct15_postreindex_sse3(FFTComplex *out, FFTComplex *in, FFTComplex *exp, int *lut, ptrdiff_t len8);
+void ff_mdct15_postreindex_avx2(FFTComplex *out, FFTComplex *in, FFTComplex *exp, int *lut, ptrdiff_t len8);
+
+void ff_fft15_avx(FFTComplex *out, FFTComplex *in, FFTComplex *exptab, ptrdiff_t stride);
+
+static void perm_twiddles(MDCT15Context *s)
+{
+    int k;
+    FFTComplex tmp[30];
+
+    /* 5-point FFT twiddles */
+    s->exptab[60].re = s->exptab[60].im = s->exptab[19].re;
+    s->exptab[61].re = s->exptab[61].im = s->exptab[19].im;
+    s->exptab[62].re = s->exptab[62].im = s->exptab[20].re;
+    s->exptab[63].re = s->exptab[63].im = s->exptab[20].im;
+
+    /* 15-point FFT twiddles */
+    for (k = 0; k < 5; k++) {
+        tmp[6*k + 0] = s->exptab[k +  0];
+        tmp[6*k + 2] = s->exptab[k +  5];
+        tmp[6*k + 4] = s->exptab[k + 10];
+
+        tmp[6*k + 1] = s->exptab[2 * (k + 0)];
+        tmp[6*k + 3] = s->exptab[2 * (k + 5)];
+        tmp[6*k + 5] = s->exptab[2 *  k + 5 ];
+    }
+
+    for (k = 0; k < 6; k++) {
+        FFTComplex ac_exp[] = {
+            { tmp[6*1 + k].re,  tmp[6*1 + k].re },
+            { tmp[6*2 + k].re,  tmp[6*2 + k].re },
+            { tmp[6*3 + k].re,  tmp[6*3 + k].re },
+            { tmp[6*4 + k].re,  tmp[6*4 + k].re },
+            { tmp[6*1 + k].im, -tmp[6*1 + k].im },
+            { tmp[6*2 + k].im, -tmp[6*2 + k].im },
+            { tmp[6*3 + k].im, -tmp[6*3 + k].im },
+            { tmp[6*4 + k].im, -tmp[6*4 + k].im },
+        };
+        memcpy(s->exptab + 8*k, ac_exp, 8*sizeof(FFTComplex));
+    }
+
+    /* Specialcase when k = 0 */
+    for (k = 0; k < 3; k++) {
+        FFTComplex dc_exp[] = {
+            { tmp[2*k + 0].re, -tmp[2*k + 0].im },
+            { tmp[2*k + 0].im,  tmp[2*k + 0].re },
+            { tmp[2*k + 1].re, -tmp[2*k + 1].im },
+            { tmp[2*k + 1].im,  tmp[2*k + 1].re },
+        };
+        memcpy(s->exptab + 8*6 + 4*k, dc_exp, 4*sizeof(FFTComplex));
+    }
+}
+
+av_cold void ff_mdct15_init_x86(MDCT15Context *s)
+{
+    int adjust_twiddles = 0;
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE3(cpu_flags))
+        s->postreindex = ff_mdct15_postreindex_sse3;
+
+    if (ARCH_X86_64 && EXTERNAL_AVX(cpu_flags)) {
+        s->fft15 = ff_fft15_avx;
+        adjust_twiddles = 1;
+    }
+
+    if (ARCH_X86_64 && EXTERNAL_AVX2_FAST(cpu_flags))
+        s->postreindex = ff_mdct15_postreindex_avx2;
+
+    if (adjust_twiddles)
+        perm_twiddles(s);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct_fixed.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct_fixed.c
new file mode 100644
index 000000000..aabf0c88f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct_fixed.c
@@ -0,0 +1,65 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define FFT_FLOAT 0
+#define FFT_FIXED_32 0
+#include "mdct_template.c"
+
+/* same as ff_mdct_calcw_c with double-width unscaled output */
+void ff_mdct_calcw_c(FFTContext *s, FFTDouble *out, const FFTSample *input)
+{
+    int i, j, n, n8, n4, n2, n3;
+    FFTDouble re, im;
+    const uint16_t *revtab = s->revtab;
+    const FFTSample *tcos = s->tcos;
+    const FFTSample *tsin = s->tsin;
+    FFTComplex *x = s->tmp_buf;
+    FFTDComplex *o = (FFTDComplex *)out;
+
+    n = 1 << s->mdct_bits;
+    n2 = n >> 1;
+    n4 = n >> 2;
+    n8 = n >> 3;
+    n3 = 3 * n4;
+
+    /* pre rotation */
+    for(i=0;i<n8;i++) {
+        re = RSCALE(-input[2*i+n3], - input[n3-1-2*i]);
+        im = RSCALE(-input[n4+2*i], + input[n4-1-2*i]);
+        j = revtab[i];
+        CMUL(x[j].re, x[j].im, re, im, -tcos[i], tsin[i]);
+
+        re = RSCALE( input[2*i]   , - input[n2-1-2*i]);
+        im = RSCALE(-input[n2+2*i], - input[ n-1-2*i]);
+        j = revtab[n8 + i];
+        CMUL(x[j].re, x[j].im, re, im, -tcos[n8 + i], tsin[n8 + i]);
+    }
+
+    s->fft_calc(s, x);
+
+    /* post rotation */
+    for(i=0;i<n8;i++) {
+        FFTDouble r0, i0, r1, i1;
+        CMULL(i1, r0, x[n8-i-1].re, x[n8-i-1].im, -tsin[n8-i-1], -tcos[n8-i-1]);
+        CMULL(i0, r1, x[n8+i  ].re, x[n8+i  ].im, -tsin[n8+i  ], -tcos[n8+i  ]);
+        o[n8-i-1].re = r0;
+        o[n8-i-1].im = i0;
+        o[n8+i  ].re = r1;
+        o[n8+i  ].im = i1;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct_fixed_32.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct_fixed_32.c
new file mode 100644
index 000000000..5a34dfe76
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct_fixed_32.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2012
+ *      MIPS Technologies, Inc., California.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Authors:  Stanislav Ocovaj (socovaj@mips.com)
+ *           Goran Cordasic   (goran@mips.com)
+ *           Djordje Pesut    (djordje@mips.com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define FFT_FLOAT 0
+#define FFT_FIXED_32 1
+#include "mdct_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct_float.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct_float.c
new file mode 100644
index 000000000..cff2d211c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct_float.c
@@ -0,0 +1,21 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define FFT_FLOAT 1
+#define FFT_FIXED_32 0
+#include "mdct_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct_template.c
new file mode 100644
index 000000000..e0ad9f1e5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mdct_template.c
@@ -0,0 +1,213 @@
+/*
+ * MDCT/IMDCT transforms
+ * Copyright (c) 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include "libavutil/common.h"
+#include "libavutil/libm.h"
+#include "libavutil/mathematics.h"
+#include "fft.h"
+#include "fft-internal.h"
+
+/**
+ * @file
+ * MDCT/IMDCT transforms.
+ */
+
+#if FFT_FLOAT
+#   define RSCALE(x, y) ((x) + (y))
+#else
+#if FFT_FIXED_32
+#   define RSCALE(x, y) ((int)((x) + (unsigned)(y) + 32) >> 6)
+#else /* FFT_FIXED_32 */
+#   define RSCALE(x, y) ((int)((x) + (unsigned)(y)) >> 1)
+#endif /* FFT_FIXED_32 */
+#endif
+
+/**
+ * init MDCT or IMDCT computation.
+ */
+av_cold int ff_mdct_init(FFTContext *s, int nbits, int inverse, double scale)
+{
+    int n, n4, i;
+    double alpha, theta;
+    int tstep;
+
+    memset(s, 0, sizeof(*s));
+    n = 1 << nbits;
+    s->mdct_bits = nbits;
+    s->mdct_size = n;
+    n4 = n >> 2;
+    s->mdct_permutation = FF_MDCT_PERM_NONE;
+
+    if (ff_fft_init(s, s->mdct_bits - 2, inverse) < 0)
+        goto fail;
+
+    s->tcos = av_malloc_array(n/2, sizeof(FFTSample));
+    if (!s->tcos)
+        goto fail;
+
+    switch (s->mdct_permutation) {
+    case FF_MDCT_PERM_NONE:
+        s->tsin = s->tcos + n4;
+        tstep = 1;
+        break;
+    case FF_MDCT_PERM_INTERLEAVE:
+        s->tsin = s->tcos + 1;
+        tstep = 2;
+        break;
+    default:
+        goto fail;
+    }
+
+    theta = 1.0 / 8.0 + (scale < 0 ? n4 : 0);
+    scale = sqrt(fabs(scale));
+    for(i=0;i<n4;i++) {
+        alpha = 2 * M_PI * (i + theta) / n;
+#if FFT_FIXED_32
+        s->tcos[i*tstep] = lrint(-cos(alpha) * 2147483648.0);
+        s->tsin[i*tstep] = lrint(-sin(alpha) * 2147483648.0);
+#else
+        s->tcos[i*tstep] = FIX15(-cos(alpha) * scale);
+        s->tsin[i*tstep] = FIX15(-sin(alpha) * scale);
+#endif
+    }
+    return 0;
+ fail:
+    ff_mdct_end(s);
+    return -1;
+}
+
+/**
+ * Compute the middle half of the inverse MDCT of size N = 2^nbits,
+ * thus excluding the parts that can be derived by symmetry
+ * @param output N/2 samples
+ * @param input N/2 samples
+ */
+void ff_imdct_half_c(FFTContext *s, FFTSample *output, const FFTSample *input)
+{
+    int k, n8, n4, n2, n, j;
+    const uint16_t *revtab = s->revtab;
+    const FFTSample *tcos = s->tcos;
+    const FFTSample *tsin = s->tsin;
+    const FFTSample *in1, *in2;
+    FFTComplex *z = (FFTComplex *)output;
+
+    n = 1 << s->mdct_bits;
+    n2 = n >> 1;
+    n4 = n >> 2;
+    n8 = n >> 3;
+
+    /* pre rotation */
+    in1 = input;
+    in2 = input + n2 - 1;
+    for(k = 0; k < n4; k++) {
+        j=revtab[k];
+        CMUL(z[j].re, z[j].im, *in2, *in1, tcos[k], tsin[k]);
+        in1 += 2;
+        in2 -= 2;
+    }
+    s->fft_calc(s, z);
+
+    /* post rotation + reordering */
+    for(k = 0; k < n8; k++) {
+        FFTSample r0, i0, r1, i1;
+        CMUL(r0, i1, z[n8-k-1].im, z[n8-k-1].re, tsin[n8-k-1], tcos[n8-k-1]);
+        CMUL(r1, i0, z[n8+k  ].im, z[n8+k  ].re, tsin[n8+k  ], tcos[n8+k  ]);
+        z[n8-k-1].re = r0;
+        z[n8-k-1].im = i0;
+        z[n8+k  ].re = r1;
+        z[n8+k  ].im = i1;
+    }
+}
+
+/**
+ * Compute inverse MDCT of size N = 2^nbits
+ * @param output N samples
+ * @param input N/2 samples
+ */
+void ff_imdct_calc_c(FFTContext *s, FFTSample *output, const FFTSample *input)
+{
+    int k;
+    int n = 1 << s->mdct_bits;
+    int n2 = n >> 1;
+    int n4 = n >> 2;
+
+    ff_imdct_half_c(s, output+n4, input);
+
+    for(k = 0; k < n4; k++) {
+        output[k] = -output[n2-k-1];
+        output[n-k-1] = output[n2+k];
+    }
+}
+
+/**
+ * Compute MDCT of size N = 2^nbits
+ * @param input N samples
+ * @param out N/2 samples
+ */
+void ff_mdct_calc_c(FFTContext *s, FFTSample *out, const FFTSample *input)
+{
+    int i, j, n, n8, n4, n2, n3;
+    FFTDouble re, im;
+    const uint16_t *revtab = s->revtab;
+    const FFTSample *tcos = s->tcos;
+    const FFTSample *tsin = s->tsin;
+    FFTComplex *x = (FFTComplex *)out;
+
+    n = 1 << s->mdct_bits;
+    n2 = n >> 1;
+    n4 = n >> 2;
+    n8 = n >> 3;
+    n3 = 3 * n4;
+
+    /* pre rotation */
+    for(i=0;i<n8;i++) {
+        re = RSCALE(-input[2*i+n3], - input[n3-1-2*i]);
+        im = RSCALE(-input[n4+2*i], + input[n4-1-2*i]);
+        j = revtab[i];
+        CMUL(x[j].re, x[j].im, re, im, -tcos[i], tsin[i]);
+
+        re = RSCALE( input[2*i]   , - input[n2-1-2*i]);
+        im = RSCALE(-input[n2+2*i], - input[ n-1-2*i]);
+        j = revtab[n8 + i];
+        CMUL(x[j].re, x[j].im, re, im, -tcos[n8 + i], tsin[n8 + i]);
+    }
+
+    s->fft_calc(s, x);
+
+    /* post rotation */
+    for(i=0;i<n8;i++) {
+        FFTSample r0, i0, r1, i1;
+        CMUL(i1, r0, x[n8-i-1].re, x[n8-i-1].im, -tsin[n8-i-1], -tcos[n8-i-1]);
+        CMUL(i0, r1, x[n8+i  ].re, x[n8+i  ].im, -tsin[n8+i  ], -tcos[n8+i  ]);
+        x[n8-i-1].re = r0;
+        x[n8-i-1].im = i0;
+        x[n8+i  ].re = r1;
+        x[n8+i  ].im = i1;
+    }
+}
+
+av_cold void ff_mdct_end(FFTContext *s)
+{
+    av_freep(&s->tcos);
+    ff_fft_end(s);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/me_cmp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/me_cmp.c
new file mode 100644
index 000000000..ae248c52f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/me_cmp.c
@@ -0,0 +1,1098 @@
+/*
+ * DSP utils
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/internal.h"
+#include "avcodec.h"
+#include "copy_block.h"
+#include "simple_idct.h"
+#include "me_cmp.h"
+#include "mpegvideo.h"
+#include "config.h"
+
+/* (i - 256) * (i - 256) */
+const uint32_t ff_square_tab[512] = {
+    65536, 65025, 64516, 64009, 63504, 63001, 62500, 62001, 61504, 61009, 60516, 60025, 59536, 59049, 58564, 58081,
+    57600, 57121, 56644, 56169, 55696, 55225, 54756, 54289, 53824, 53361, 52900, 52441, 51984, 51529, 51076, 50625,
+    50176, 49729, 49284, 48841, 48400, 47961, 47524, 47089, 46656, 46225, 45796, 45369, 44944, 44521, 44100, 43681,
+    43264, 42849, 42436, 42025, 41616, 41209, 40804, 40401, 40000, 39601, 39204, 38809, 38416, 38025, 37636, 37249,
+    36864, 36481, 36100, 35721, 35344, 34969, 34596, 34225, 33856, 33489, 33124, 32761, 32400, 32041, 31684, 31329,
+    30976, 30625, 30276, 29929, 29584, 29241, 28900, 28561, 28224, 27889, 27556, 27225, 26896, 26569, 26244, 25921,
+    25600, 25281, 24964, 24649, 24336, 24025, 23716, 23409, 23104, 22801, 22500, 22201, 21904, 21609, 21316, 21025,
+    20736, 20449, 20164, 19881, 19600, 19321, 19044, 18769, 18496, 18225, 17956, 17689, 17424, 17161, 16900, 16641,
+    16384, 16129, 15876, 15625, 15376, 15129, 14884, 14641, 14400, 14161, 13924, 13689, 13456, 13225, 12996, 12769,
+    12544, 12321, 12100, 11881, 11664, 11449, 11236, 11025, 10816, 10609, 10404, 10201, 10000,  9801,  9604,  9409,
+     9216,  9025,  8836,  8649,  8464,  8281,  8100,  7921,  7744,  7569,  7396,  7225,  7056,  6889,  6724,  6561,
+     6400,  6241,  6084,  5929,  5776,  5625,  5476,  5329,  5184,  5041,  4900,  4761,  4624,  4489,  4356,  4225,
+     4096,  3969,  3844,  3721,  3600,  3481,  3364,  3249,  3136,  3025,  2916,  2809,  2704,  2601,  2500,  2401,
+     2304,  2209,  2116,  2025,  1936,  1849,  1764,  1681,  1600,  1521,  1444,  1369,  1296,  1225,  1156,  1089,
+     1024,   961,   900,   841,   784,   729,   676,   625,   576,   529,   484,   441,   400,   361,   324,   289,
+      256,   225,   196,   169,   144,   121,   100,    81,    64,    49,    36,    25,    16,     9,     4,     1,
+        0,     1,     4,     9,    16,    25,    36,    49,    64,    81,   100,   121,   144,   169,   196,   225,
+      256,   289,   324,   361,   400,   441,   484,   529,   576,   625,   676,   729,   784,   841,   900,   961,
+     1024,  1089,  1156,  1225,  1296,  1369,  1444,  1521,  1600,  1681,  1764,  1849,  1936,  2025,  2116,  2209,
+     2304,  2401,  2500,  2601,  2704,  2809,  2916,  3025,  3136,  3249,  3364,  3481,  3600,  3721,  3844,  3969,
+     4096,  4225,  4356,  4489,  4624,  4761,  4900,  5041,  5184,  5329,  5476,  5625,  5776,  5929,  6084,  6241,
+     6400,  6561,  6724,  6889,  7056,  7225,  7396,  7569,  7744,  7921,  8100,  8281,  8464,  8649,  8836,  9025,
+     9216,  9409,  9604,  9801, 10000, 10201, 10404, 10609, 10816, 11025, 11236, 11449, 11664, 11881, 12100, 12321,
+    12544, 12769, 12996, 13225, 13456, 13689, 13924, 14161, 14400, 14641, 14884, 15129, 15376, 15625, 15876, 16129,
+    16384, 16641, 16900, 17161, 17424, 17689, 17956, 18225, 18496, 18769, 19044, 19321, 19600, 19881, 20164, 20449,
+    20736, 21025, 21316, 21609, 21904, 22201, 22500, 22801, 23104, 23409, 23716, 24025, 24336, 24649, 24964, 25281,
+    25600, 25921, 26244, 26569, 26896, 27225, 27556, 27889, 28224, 28561, 28900, 29241, 29584, 29929, 30276, 30625,
+    30976, 31329, 31684, 32041, 32400, 32761, 33124, 33489, 33856, 34225, 34596, 34969, 35344, 35721, 36100, 36481,
+    36864, 37249, 37636, 38025, 38416, 38809, 39204, 39601, 40000, 40401, 40804, 41209, 41616, 42025, 42436, 42849,
+    43264, 43681, 44100, 44521, 44944, 45369, 45796, 46225, 46656, 47089, 47524, 47961, 48400, 48841, 49284, 49729,
+    50176, 50625, 51076, 51529, 51984, 52441, 52900, 53361, 53824, 54289, 54756, 55225, 55696, 56169, 56644, 57121,
+    57600, 58081, 58564, 59049, 59536, 60025, 60516, 61009, 61504, 62001, 62500, 63001, 63504, 64009, 64516, 65025,
+};
+
+static int sse4_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                  ptrdiff_t stride, int h)
+{
+    int s = 0, i;
+    const uint32_t *sq = ff_square_tab + 256;
+
+    for (i = 0; i < h; i++) {
+        s    += sq[pix1[0] - pix2[0]];
+        s    += sq[pix1[1] - pix2[1]];
+        s    += sq[pix1[2] - pix2[2]];
+        s    += sq[pix1[3] - pix2[3]];
+        pix1 += stride;
+        pix2 += stride;
+    }
+    return s;
+}
+
+static int sse8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                  ptrdiff_t stride, int h)
+{
+    int s = 0, i;
+    const uint32_t *sq = ff_square_tab + 256;
+
+    for (i = 0; i < h; i++) {
+        s    += sq[pix1[0] - pix2[0]];
+        s    += sq[pix1[1] - pix2[1]];
+        s    += sq[pix1[2] - pix2[2]];
+        s    += sq[pix1[3] - pix2[3]];
+        s    += sq[pix1[4] - pix2[4]];
+        s    += sq[pix1[5] - pix2[5]];
+        s    += sq[pix1[6] - pix2[6]];
+        s    += sq[pix1[7] - pix2[7]];
+        pix1 += stride;
+        pix2 += stride;
+    }
+    return s;
+}
+
+static int sse16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                   ptrdiff_t stride, int h)
+{
+    int s = 0, i;
+    const uint32_t *sq = ff_square_tab + 256;
+
+    for (i = 0; i < h; i++) {
+        s += sq[pix1[0]  - pix2[0]];
+        s += sq[pix1[1]  - pix2[1]];
+        s += sq[pix1[2]  - pix2[2]];
+        s += sq[pix1[3]  - pix2[3]];
+        s += sq[pix1[4]  - pix2[4]];
+        s += sq[pix1[5]  - pix2[5]];
+        s += sq[pix1[6]  - pix2[6]];
+        s += sq[pix1[7]  - pix2[7]];
+        s += sq[pix1[8]  - pix2[8]];
+        s += sq[pix1[9]  - pix2[9]];
+        s += sq[pix1[10] - pix2[10]];
+        s += sq[pix1[11] - pix2[11]];
+        s += sq[pix1[12] - pix2[12]];
+        s += sq[pix1[13] - pix2[13]];
+        s += sq[pix1[14] - pix2[14]];
+        s += sq[pix1[15] - pix2[15]];
+
+        pix1 += stride;
+        pix2 += stride;
+    }
+    return s;
+}
+
+static int sum_abs_dctelem_c(int16_t *block)
+{
+    int sum = 0, i;
+
+    for (i = 0; i < 64; i++)
+        sum += FFABS(block[i]);
+    return sum;
+}
+
+#define avg2(a, b) (((a) + (b) + 1) >> 1)
+#define avg4(a, b, c, d) (((a) + (b) + (c) + (d) + 2) >> 2)
+
+static inline int pix_abs16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                              ptrdiff_t stride, int h)
+{
+    int s = 0, i;
+
+    for (i = 0; i < h; i++) {
+        s    += abs(pix1[0]  - pix2[0]);
+        s    += abs(pix1[1]  - pix2[1]);
+        s    += abs(pix1[2]  - pix2[2]);
+        s    += abs(pix1[3]  - pix2[3]);
+        s    += abs(pix1[4]  - pix2[4]);
+        s    += abs(pix1[5]  - pix2[5]);
+        s    += abs(pix1[6]  - pix2[6]);
+        s    += abs(pix1[7]  - pix2[7]);
+        s    += abs(pix1[8]  - pix2[8]);
+        s    += abs(pix1[9]  - pix2[9]);
+        s    += abs(pix1[10] - pix2[10]);
+        s    += abs(pix1[11] - pix2[11]);
+        s    += abs(pix1[12] - pix2[12]);
+        s    += abs(pix1[13] - pix2[13]);
+        s    += abs(pix1[14] - pix2[14]);
+        s    += abs(pix1[15] - pix2[15]);
+        pix1 += stride;
+        pix2 += stride;
+    }
+    return s;
+}
+
+static inline int pix_median_abs16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                             ptrdiff_t stride, int h)
+{
+    int s = 0, i, j;
+
+#define V(x) (pix1[x] - pix2[x])
+
+    s    += abs(V(0));
+    s    += abs(V(1) - V(0));
+    s    += abs(V(2) - V(1));
+    s    += abs(V(3) - V(2));
+    s    += abs(V(4) - V(3));
+    s    += abs(V(5) - V(4));
+    s    += abs(V(6) - V(5));
+    s    += abs(V(7) - V(6));
+    s    += abs(V(8) - V(7));
+    s    += abs(V(9) - V(8));
+    s    += abs(V(10) - V(9));
+    s    += abs(V(11) - V(10));
+    s    += abs(V(12) - V(11));
+    s    += abs(V(13) - V(12));
+    s    += abs(V(14) - V(13));
+    s    += abs(V(15) - V(14));
+
+    pix1 += stride;
+    pix2 += stride;
+
+    for (i = 1; i < h; i++) {
+        s    += abs(V(0) - V(-stride));
+        for (j = 1; j < 16; j++)
+            s    += abs(V(j) - mid_pred(V(j-stride), V(j-1), V(j-stride) + V(j-1) - V(j-stride-1)));
+        pix1 += stride;
+        pix2 += stride;
+
+    }
+#undef V
+    return s;
+}
+
+static int pix_abs16_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                          ptrdiff_t stride, int h)
+{
+    int s = 0, i;
+
+    for (i = 0; i < h; i++) {
+        s    += abs(pix1[0]  - avg2(pix2[0],  pix2[1]));
+        s    += abs(pix1[1]  - avg2(pix2[1],  pix2[2]));
+        s    += abs(pix1[2]  - avg2(pix2[2],  pix2[3]));
+        s    += abs(pix1[3]  - avg2(pix2[3],  pix2[4]));
+        s    += abs(pix1[4]  - avg2(pix2[4],  pix2[5]));
+        s    += abs(pix1[5]  - avg2(pix2[5],  pix2[6]));
+        s    += abs(pix1[6]  - avg2(pix2[6],  pix2[7]));
+        s    += abs(pix1[7]  - avg2(pix2[7],  pix2[8]));
+        s    += abs(pix1[8]  - avg2(pix2[8],  pix2[9]));
+        s    += abs(pix1[9]  - avg2(pix2[9],  pix2[10]));
+        s    += abs(pix1[10] - avg2(pix2[10], pix2[11]));
+        s    += abs(pix1[11] - avg2(pix2[11], pix2[12]));
+        s    += abs(pix1[12] - avg2(pix2[12], pix2[13]));
+        s    += abs(pix1[13] - avg2(pix2[13], pix2[14]));
+        s    += abs(pix1[14] - avg2(pix2[14], pix2[15]));
+        s    += abs(pix1[15] - avg2(pix2[15], pix2[16]));
+        pix1 += stride;
+        pix2 += stride;
+    }
+    return s;
+}
+
+static int pix_abs16_y2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                          ptrdiff_t stride, int h)
+{
+    int s = 0, i;
+    uint8_t *pix3 = pix2 + stride;
+
+    for (i = 0; i < h; i++) {
+        s    += abs(pix1[0]  - avg2(pix2[0],  pix3[0]));
+        s    += abs(pix1[1]  - avg2(pix2[1],  pix3[1]));
+        s    += abs(pix1[2]  - avg2(pix2[2],  pix3[2]));
+        s    += abs(pix1[3]  - avg2(pix2[3],  pix3[3]));
+        s    += abs(pix1[4]  - avg2(pix2[4],  pix3[4]));
+        s    += abs(pix1[5]  - avg2(pix2[5],  pix3[5]));
+        s    += abs(pix1[6]  - avg2(pix2[6],  pix3[6]));
+        s    += abs(pix1[7]  - avg2(pix2[7],  pix3[7]));
+        s    += abs(pix1[8]  - avg2(pix2[8],  pix3[8]));
+        s    += abs(pix1[9]  - avg2(pix2[9],  pix3[9]));
+        s    += abs(pix1[10] - avg2(pix2[10], pix3[10]));
+        s    += abs(pix1[11] - avg2(pix2[11], pix3[11]));
+        s    += abs(pix1[12] - avg2(pix2[12], pix3[12]));
+        s    += abs(pix1[13] - avg2(pix2[13], pix3[13]));
+        s    += abs(pix1[14] - avg2(pix2[14], pix3[14]));
+        s    += abs(pix1[15] - avg2(pix2[15], pix3[15]));
+        pix1 += stride;
+        pix2 += stride;
+        pix3 += stride;
+    }
+    return s;
+}
+
+static int pix_abs16_xy2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                           ptrdiff_t stride, int h)
+{
+    int s = 0, i;
+    uint8_t *pix3 = pix2 + stride;
+
+    for (i = 0; i < h; i++) {
+        s    += abs(pix1[0]  - avg4(pix2[0],  pix2[1],  pix3[0],  pix3[1]));
+        s    += abs(pix1[1]  - avg4(pix2[1],  pix2[2],  pix3[1],  pix3[2]));
+        s    += abs(pix1[2]  - avg4(pix2[2],  pix2[3],  pix3[2],  pix3[3]));
+        s    += abs(pix1[3]  - avg4(pix2[3],  pix2[4],  pix3[3],  pix3[4]));
+        s    += abs(pix1[4]  - avg4(pix2[4],  pix2[5],  pix3[4],  pix3[5]));
+        s    += abs(pix1[5]  - avg4(pix2[5],  pix2[6],  pix3[5],  pix3[6]));
+        s    += abs(pix1[6]  - avg4(pix2[6],  pix2[7],  pix3[6],  pix3[7]));
+        s    += abs(pix1[7]  - avg4(pix2[7],  pix2[8],  pix3[7],  pix3[8]));
+        s    += abs(pix1[8]  - avg4(pix2[8],  pix2[9],  pix3[8],  pix3[9]));
+        s    += abs(pix1[9]  - avg4(pix2[9],  pix2[10], pix3[9],  pix3[10]));
+        s    += abs(pix1[10] - avg4(pix2[10], pix2[11], pix3[10], pix3[11]));
+        s    += abs(pix1[11] - avg4(pix2[11], pix2[12], pix3[11], pix3[12]));
+        s    += abs(pix1[12] - avg4(pix2[12], pix2[13], pix3[12], pix3[13]));
+        s    += abs(pix1[13] - avg4(pix2[13], pix2[14], pix3[13], pix3[14]));
+        s    += abs(pix1[14] - avg4(pix2[14], pix2[15], pix3[14], pix3[15]));
+        s    += abs(pix1[15] - avg4(pix2[15], pix2[16], pix3[15], pix3[16]));
+        pix1 += stride;
+        pix2 += stride;
+        pix3 += stride;
+    }
+    return s;
+}
+
+static inline int pix_abs8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                             ptrdiff_t stride, int h)
+{
+    int s = 0, i;
+
+    for (i = 0; i < h; i++) {
+        s    += abs(pix1[0] - pix2[0]);
+        s    += abs(pix1[1] - pix2[1]);
+        s    += abs(pix1[2] - pix2[2]);
+        s    += abs(pix1[3] - pix2[3]);
+        s    += abs(pix1[4] - pix2[4]);
+        s    += abs(pix1[5] - pix2[5]);
+        s    += abs(pix1[6] - pix2[6]);
+        s    += abs(pix1[7] - pix2[7]);
+        pix1 += stride;
+        pix2 += stride;
+    }
+    return s;
+}
+
+static inline int pix_median_abs8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                             ptrdiff_t stride, int h)
+{
+    int s = 0, i, j;
+
+#define V(x) (pix1[x] - pix2[x])
+
+    s    += abs(V(0));
+    s    += abs(V(1) - V(0));
+    s    += abs(V(2) - V(1));
+    s    += abs(V(3) - V(2));
+    s    += abs(V(4) - V(3));
+    s    += abs(V(5) - V(4));
+    s    += abs(V(6) - V(5));
+    s    += abs(V(7) - V(6));
+
+    pix1 += stride;
+    pix2 += stride;
+
+    for (i = 1; i < h; i++) {
+        s    += abs(V(0) - V(-stride));
+        for (j = 1; j < 8; j++)
+            s    += abs(V(j) - mid_pred(V(j-stride), V(j-1), V(j-stride) + V(j-1) - V(j-stride-1)));
+        pix1 += stride;
+        pix2 += stride;
+
+    }
+#undef V
+    return s;
+}
+
+static int pix_abs8_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                         ptrdiff_t stride, int h)
+{
+    int s = 0, i;
+
+    for (i = 0; i < h; i++) {
+        s    += abs(pix1[0] - avg2(pix2[0], pix2[1]));
+        s    += abs(pix1[1] - avg2(pix2[1], pix2[2]));
+        s    += abs(pix1[2] - avg2(pix2[2], pix2[3]));
+        s    += abs(pix1[3] - avg2(pix2[3], pix2[4]));
+        s    += abs(pix1[4] - avg2(pix2[4], pix2[5]));
+        s    += abs(pix1[5] - avg2(pix2[5], pix2[6]));
+        s    += abs(pix1[6] - avg2(pix2[6], pix2[7]));
+        s    += abs(pix1[7] - avg2(pix2[7], pix2[8]));
+        pix1 += stride;
+        pix2 += stride;
+    }
+    return s;
+}
+
+static int pix_abs8_y2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                         ptrdiff_t stride, int h)
+{
+    int s = 0, i;
+    uint8_t *pix3 = pix2 + stride;
+
+    for (i = 0; i < h; i++) {
+        s    += abs(pix1[0] - avg2(pix2[0], pix3[0]));
+        s    += abs(pix1[1] - avg2(pix2[1], pix3[1]));
+        s    += abs(pix1[2] - avg2(pix2[2], pix3[2]));
+        s    += abs(pix1[3] - avg2(pix2[3], pix3[3]));
+        s    += abs(pix1[4] - avg2(pix2[4], pix3[4]));
+        s    += abs(pix1[5] - avg2(pix2[5], pix3[5]));
+        s    += abs(pix1[6] - avg2(pix2[6], pix3[6]));
+        s    += abs(pix1[7] - avg2(pix2[7], pix3[7]));
+        pix1 += stride;
+        pix2 += stride;
+        pix3 += stride;
+    }
+    return s;
+}
+
+static int pix_abs8_xy2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                          ptrdiff_t stride, int h)
+{
+    int s = 0, i;
+    uint8_t *pix3 = pix2 + stride;
+
+    for (i = 0; i < h; i++) {
+        s    += abs(pix1[0] - avg4(pix2[0], pix2[1], pix3[0], pix3[1]));
+        s    += abs(pix1[1] - avg4(pix2[1], pix2[2], pix3[1], pix3[2]));
+        s    += abs(pix1[2] - avg4(pix2[2], pix2[3], pix3[2], pix3[3]));
+        s    += abs(pix1[3] - avg4(pix2[3], pix2[4], pix3[3], pix3[4]));
+        s    += abs(pix1[4] - avg4(pix2[4], pix2[5], pix3[4], pix3[5]));
+        s    += abs(pix1[5] - avg4(pix2[5], pix2[6], pix3[5], pix3[6]));
+        s    += abs(pix1[6] - avg4(pix2[6], pix2[7], pix3[6], pix3[7]));
+        s    += abs(pix1[7] - avg4(pix2[7], pix2[8], pix3[7], pix3[8]));
+        pix1 += stride;
+        pix2 += stride;
+        pix3 += stride;
+    }
+    return s;
+}
+
+static int nsse16_c(MpegEncContext *c, uint8_t *s1, uint8_t *s2,
+                    ptrdiff_t stride, int h)
+{
+    int score1 = 0, score2 = 0, x, y;
+
+    for (y = 0; y < h; y++) {
+        for (x = 0; x < 16; x++)
+            score1 += (s1[x] - s2[x]) * (s1[x] - s2[x]);
+        if (y + 1 < h) {
+            for (x = 0; x < 15; x++)
+                score2 += FFABS(s1[x]     - s1[x + stride] -
+                                s1[x + 1] + s1[x + stride + 1]) -
+                          FFABS(s2[x]     - s2[x + stride] -
+                                s2[x + 1] + s2[x + stride + 1]);
+        }
+        s1 += stride;
+        s2 += stride;
+    }
+
+    if (c)
+        return score1 + FFABS(score2) * c->avctx->nsse_weight;
+    else
+        return score1 + FFABS(score2) * 8;
+}
+
+static int nsse8_c(MpegEncContext *c, uint8_t *s1, uint8_t *s2,
+                   ptrdiff_t stride, int h)
+{
+    int score1 = 0, score2 = 0, x, y;
+
+    for (y = 0; y < h; y++) {
+        for (x = 0; x < 8; x++)
+            score1 += (s1[x] - s2[x]) * (s1[x] - s2[x]);
+        if (y + 1 < h) {
+            for (x = 0; x < 7; x++)
+                score2 += FFABS(s1[x]     - s1[x + stride] -
+                                s1[x + 1] + s1[x + stride + 1]) -
+                          FFABS(s2[x]     - s2[x + stride] -
+                                s2[x + 1] + s2[x + stride + 1]);
+        }
+        s1 += stride;
+        s2 += stride;
+    }
+
+    if (c)
+        return score1 + FFABS(score2) * c->avctx->nsse_weight;
+    else
+        return score1 + FFABS(score2) * 8;
+}
+
+static int zero_cmp(MpegEncContext *s, uint8_t *a, uint8_t *b,
+                    ptrdiff_t stride, int h)
+{
+    return 0;
+}
+
+void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type)
+{
+    int i;
+
+    memset(cmp, 0, sizeof(void *) * 6);
+
+    for (i = 0; i < 6; i++) {
+        switch (type & 0xFF) {
+        case FF_CMP_SAD:
+            cmp[i] = c->sad[i];
+            break;
+        case FF_CMP_MEDIAN_SAD:
+            cmp[i] = c->median_sad[i];
+            break;
+        case FF_CMP_SATD:
+            cmp[i] = c->hadamard8_diff[i];
+            break;
+        case FF_CMP_SSE:
+            cmp[i] = c->sse[i];
+            break;
+        case FF_CMP_DCT:
+            cmp[i] = c->dct_sad[i];
+            break;
+        case FF_CMP_DCT264:
+            cmp[i] = c->dct264_sad[i];
+            break;
+        case FF_CMP_DCTMAX:
+            cmp[i] = c->dct_max[i];
+            break;
+        case FF_CMP_PSNR:
+            cmp[i] = c->quant_psnr[i];
+            break;
+        case FF_CMP_BIT:
+            cmp[i] = c->bit[i];
+            break;
+        case FF_CMP_RD:
+            cmp[i] = c->rd[i];
+            break;
+        case FF_CMP_VSAD:
+            cmp[i] = c->vsad[i];
+            break;
+        case FF_CMP_VSSE:
+            cmp[i] = c->vsse[i];
+            break;
+        case FF_CMP_ZERO:
+            cmp[i] = zero_cmp;
+            break;
+        case FF_CMP_NSSE:
+            cmp[i] = c->nsse[i];
+            break;
+#if CONFIG_DWT
+        case FF_CMP_W53:
+            cmp[i]= c->w53[i];
+            break;
+        case FF_CMP_W97:
+            cmp[i]= c->w97[i];
+            break;
+#endif
+        default:
+            av_log(NULL, AV_LOG_ERROR,
+                   "internal error in cmp function selection\n");
+        }
+    }
+}
+
+#define BUTTERFLY2(o1, o2, i1, i2)              \
+    o1 = (i1) + (i2);                           \
+    o2 = (i1) - (i2);
+
+#define BUTTERFLY1(x, y)                        \
+    {                                           \
+        int a, b;                               \
+        a = x;                                  \
+        b = y;                                  \
+        x = a + b;                              \
+        y = a - b;                              \
+    }
+
+#define BUTTERFLYA(x, y) (FFABS((x) + (y)) + FFABS((x) - (y)))
+
+static int hadamard8_diff8x8_c(MpegEncContext *s, uint8_t *dst,
+                               uint8_t *src, ptrdiff_t stride, int h)
+{
+    int i, temp[64], sum = 0;
+
+    av_assert2(h == 8);
+
+    for (i = 0; i < 8; i++) {
+        // FIXME: try pointer walks
+        BUTTERFLY2(temp[8 * i + 0], temp[8 * i + 1],
+                   src[stride * i + 0] - dst[stride * i + 0],
+                   src[stride * i + 1] - dst[stride * i + 1]);
+        BUTTERFLY2(temp[8 * i + 2], temp[8 * i + 3],
+                   src[stride * i + 2] - dst[stride * i + 2],
+                   src[stride * i + 3] - dst[stride * i + 3]);
+        BUTTERFLY2(temp[8 * i + 4], temp[8 * i + 5],
+                   src[stride * i + 4] - dst[stride * i + 4],
+                   src[stride * i + 5] - dst[stride * i + 5]);
+        BUTTERFLY2(temp[8 * i + 6], temp[8 * i + 7],
+                   src[stride * i + 6] - dst[stride * i + 6],
+                   src[stride * i + 7] - dst[stride * i + 7]);
+
+        BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 2]);
+        BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 3]);
+        BUTTERFLY1(temp[8 * i + 4], temp[8 * i + 6]);
+        BUTTERFLY1(temp[8 * i + 5], temp[8 * i + 7]);
+
+        BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 4]);
+        BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 5]);
+        BUTTERFLY1(temp[8 * i + 2], temp[8 * i + 6]);
+        BUTTERFLY1(temp[8 * i + 3], temp[8 * i + 7]);
+    }
+
+    for (i = 0; i < 8; i++) {
+        BUTTERFLY1(temp[8 * 0 + i], temp[8 * 1 + i]);
+        BUTTERFLY1(temp[8 * 2 + i], temp[8 * 3 + i]);
+        BUTTERFLY1(temp[8 * 4 + i], temp[8 * 5 + i]);
+        BUTTERFLY1(temp[8 * 6 + i], temp[8 * 7 + i]);
+
+        BUTTERFLY1(temp[8 * 0 + i], temp[8 * 2 + i]);
+        BUTTERFLY1(temp[8 * 1 + i], temp[8 * 3 + i]);
+        BUTTERFLY1(temp[8 * 4 + i], temp[8 * 6 + i]);
+        BUTTERFLY1(temp[8 * 5 + i], temp[8 * 7 + i]);
+
+        sum += BUTTERFLYA(temp[8 * 0 + i], temp[8 * 4 + i]) +
+               BUTTERFLYA(temp[8 * 1 + i], temp[8 * 5 + i]) +
+               BUTTERFLYA(temp[8 * 2 + i], temp[8 * 6 + i]) +
+               BUTTERFLYA(temp[8 * 3 + i], temp[8 * 7 + i]);
+    }
+    return sum;
+}
+
+static int hadamard8_intra8x8_c(MpegEncContext *s, uint8_t *src,
+                                uint8_t *dummy, ptrdiff_t stride, int h)
+{
+    int i, temp[64], sum = 0;
+
+    av_assert2(h == 8);
+
+    for (i = 0; i < 8; i++) {
+        // FIXME: try pointer walks
+        BUTTERFLY2(temp[8 * i + 0], temp[8 * i + 1],
+                   src[stride * i + 0], src[stride * i + 1]);
+        BUTTERFLY2(temp[8 * i + 2], temp[8 * i + 3],
+                   src[stride * i + 2], src[stride * i + 3]);
+        BUTTERFLY2(temp[8 * i + 4], temp[8 * i + 5],
+                   src[stride * i + 4], src[stride * i + 5]);
+        BUTTERFLY2(temp[8 * i + 6], temp[8 * i + 7],
+                   src[stride * i + 6], src[stride * i + 7]);
+
+        BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 2]);
+        BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 3]);
+        BUTTERFLY1(temp[8 * i + 4], temp[8 * i + 6]);
+        BUTTERFLY1(temp[8 * i + 5], temp[8 * i + 7]);
+
+        BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 4]);
+        BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 5]);
+        BUTTERFLY1(temp[8 * i + 2], temp[8 * i + 6]);
+        BUTTERFLY1(temp[8 * i + 3], temp[8 * i + 7]);
+    }
+
+    for (i = 0; i < 8; i++) {
+        BUTTERFLY1(temp[8 * 0 + i], temp[8 * 1 + i]);
+        BUTTERFLY1(temp[8 * 2 + i], temp[8 * 3 + i]);
+        BUTTERFLY1(temp[8 * 4 + i], temp[8 * 5 + i]);
+        BUTTERFLY1(temp[8 * 6 + i], temp[8 * 7 + i]);
+
+        BUTTERFLY1(temp[8 * 0 + i], temp[8 * 2 + i]);
+        BUTTERFLY1(temp[8 * 1 + i], temp[8 * 3 + i]);
+        BUTTERFLY1(temp[8 * 4 + i], temp[8 * 6 + i]);
+        BUTTERFLY1(temp[8 * 5 + i], temp[8 * 7 + i]);
+
+        sum +=
+            BUTTERFLYA(temp[8 * 0 + i], temp[8 * 4 + i])
+            + BUTTERFLYA(temp[8 * 1 + i], temp[8 * 5 + i])
+            + BUTTERFLYA(temp[8 * 2 + i], temp[8 * 6 + i])
+            + BUTTERFLYA(temp[8 * 3 + i], temp[8 * 7 + i]);
+    }
+
+    sum -= FFABS(temp[8 * 0] + temp[8 * 4]); // -mean
+
+    return sum;
+}
+
+static int dct_sad8x8_c(MpegEncContext *s, uint8_t *src1,
+                        uint8_t *src2, ptrdiff_t stride, int h)
+{
+    LOCAL_ALIGNED_16(int16_t, temp, [64]);
+
+    av_assert2(h == 8);
+
+    s->pdsp.diff_pixels_unaligned(temp, src1, src2, stride);
+    s->fdsp.fdct(temp);
+    return s->mecc.sum_abs_dctelem(temp);
+}
+
+#if CONFIG_GPL
+#define DCT8_1D                                         \
+    {                                                   \
+        const int s07 = SRC(0) + SRC(7);                \
+        const int s16 = SRC(1) + SRC(6);                \
+        const int s25 = SRC(2) + SRC(5);                \
+        const int s34 = SRC(3) + SRC(4);                \
+        const int a0  = s07 + s34;                      \
+        const int a1  = s16 + s25;                      \
+        const int a2  = s07 - s34;                      \
+        const int a3  = s16 - s25;                      \
+        const int d07 = SRC(0) - SRC(7);                \
+        const int d16 = SRC(1) - SRC(6);                \
+        const int d25 = SRC(2) - SRC(5);                \
+        const int d34 = SRC(3) - SRC(4);                \
+        const int a4  = d16 + d25 + (d07 + (d07 >> 1)); \
+        const int a5  = d07 - d34 - (d25 + (d25 >> 1)); \
+        const int a6  = d07 + d34 - (d16 + (d16 >> 1)); \
+        const int a7  = d16 - d25 + (d34 + (d34 >> 1)); \
+        DST(0, a0 + a1);                                \
+        DST(1, a4 + (a7 >> 2));                         \
+        DST(2, a2 + (a3 >> 1));                         \
+        DST(3, a5 + (a6 >> 2));                         \
+        DST(4, a0 - a1);                                \
+        DST(5, a6 - (a5 >> 2));                         \
+        DST(6, (a2 >> 1) - a3);                         \
+        DST(7, (a4 >> 2) - a7);                         \
+    }
+
+static int dct264_sad8x8_c(MpegEncContext *s, uint8_t *src1,
+                           uint8_t *src2, ptrdiff_t stride, int h)
+{
+    int16_t dct[8][8];
+    int i, sum = 0;
+
+    s->pdsp.diff_pixels_unaligned(dct[0], src1, src2, stride);
+
+#define SRC(x) dct[i][x]
+#define DST(x, v) dct[i][x] = v
+    for (i = 0; i < 8; i++)
+        DCT8_1D
+#undef SRC
+#undef DST
+
+#define SRC(x) dct[x][i]
+#define DST(x, v) sum += FFABS(v)
+        for (i = 0; i < 8; i++)
+            DCT8_1D
+#undef SRC
+#undef DST
+            return sum;
+}
+#endif
+
+static int dct_max8x8_c(MpegEncContext *s, uint8_t *src1,
+                        uint8_t *src2, ptrdiff_t stride, int h)
+{
+    LOCAL_ALIGNED_16(int16_t, temp, [64]);
+    int sum = 0, i;
+
+    av_assert2(h == 8);
+
+    s->pdsp.diff_pixels_unaligned(temp, src1, src2, stride);
+    s->fdsp.fdct(temp);
+
+    for (i = 0; i < 64; i++)
+        sum = FFMAX(sum, FFABS(temp[i]));
+
+    return sum;
+}
+
+static int quant_psnr8x8_c(MpegEncContext *s, uint8_t *src1,
+                           uint8_t *src2, ptrdiff_t stride, int h)
+{
+    LOCAL_ALIGNED_16(int16_t, temp, [64 * 2]);
+    int16_t *const bak = temp + 64;
+    int sum = 0, i;
+
+    av_assert2(h == 8);
+    s->mb_intra = 0;
+
+    s->pdsp.diff_pixels_unaligned(temp, src1, src2, stride);
+
+    memcpy(bak, temp, 64 * sizeof(int16_t));
+
+    s->block_last_index[0 /* FIXME */] =
+        s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
+    s->dct_unquantize_inter(s, temp, 0, s->qscale);
+    ff_simple_idct_int16_8bit(temp); // FIXME
+
+    for (i = 0; i < 64; i++)
+        sum += (temp[i] - bak[i]) * (temp[i] - bak[i]);
+
+    return sum;
+}
+
+static int rd8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2,
+                   ptrdiff_t stride, int h)
+{
+    const uint8_t *scantable = s->intra_scantable.permutated;
+    LOCAL_ALIGNED_16(int16_t, temp, [64]);
+    LOCAL_ALIGNED_16(uint8_t, lsrc1, [64]);
+    LOCAL_ALIGNED_16(uint8_t, lsrc2, [64]);
+    int i, last, run, bits, level, distortion, start_i;
+    const int esc_length = s->ac_esc_length;
+    uint8_t *length, *last_length;
+
+    av_assert2(h == 8);
+
+    copy_block8(lsrc1, src1, 8, stride, 8);
+    copy_block8(lsrc2, src2, 8, stride, 8);
+
+    s->pdsp.diff_pixels(temp, lsrc1, lsrc2, 8);
+
+    s->block_last_index[0 /* FIXME */] =
+    last                               =
+        s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
+
+    bits = 0;
+
+    if (s->mb_intra) {
+        start_i     = 1;
+        length      = s->intra_ac_vlc_length;
+        last_length = s->intra_ac_vlc_last_length;
+        bits       += s->luma_dc_vlc_length[temp[0] + 256]; // FIXME: chroma
+    } else {
+        start_i     = 0;
+        length      = s->inter_ac_vlc_length;
+        last_length = s->inter_ac_vlc_last_length;
+    }
+
+    if (last >= start_i) {
+        run = 0;
+        for (i = start_i; i < last; i++) {
+            int j = scantable[i];
+            level = temp[j];
+
+            if (level) {
+                level += 64;
+                if ((level & (~127)) == 0)
+                    bits += length[UNI_AC_ENC_INDEX(run, level)];
+                else
+                    bits += esc_length;
+                run = 0;
+            } else
+                run++;
+        }
+        i = scantable[last];
+
+        level = temp[i] + 64;
+
+        av_assert2(level - 64);
+
+        if ((level & (~127)) == 0) {
+            bits += last_length[UNI_AC_ENC_INDEX(run, level)];
+        } else
+            bits += esc_length;
+    }
+
+    if (last >= 0) {
+        if (s->mb_intra)
+            s->dct_unquantize_intra(s, temp, 0, s->qscale);
+        else
+            s->dct_unquantize_inter(s, temp, 0, s->qscale);
+    }
+
+    s->idsp.idct_add(lsrc2, 8, temp);
+
+    distortion = s->mecc.sse[1](NULL, lsrc2, lsrc1, 8, 8);
+
+    return distortion + ((bits * s->qscale * s->qscale * 109 + 64) >> 7);
+}
+
+static int bit8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2,
+                    ptrdiff_t stride, int h)
+{
+    const uint8_t *scantable = s->intra_scantable.permutated;
+    LOCAL_ALIGNED_16(int16_t, temp, [64]);
+    int i, last, run, bits, level, start_i;
+    const int esc_length = s->ac_esc_length;
+    uint8_t *length, *last_length;
+
+    av_assert2(h == 8);
+
+    s->pdsp.diff_pixels_unaligned(temp, src1, src2, stride);
+
+    s->block_last_index[0 /* FIXME */] =
+    last                               =
+        s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
+
+    bits = 0;
+
+    if (s->mb_intra) {
+        start_i     = 1;
+        length      = s->intra_ac_vlc_length;
+        last_length = s->intra_ac_vlc_last_length;
+        bits       += s->luma_dc_vlc_length[temp[0] + 256]; // FIXME: chroma
+    } else {
+        start_i     = 0;
+        length      = s->inter_ac_vlc_length;
+        last_length = s->inter_ac_vlc_last_length;
+    }
+
+    if (last >= start_i) {
+        run = 0;
+        for (i = start_i; i < last; i++) {
+            int j = scantable[i];
+            level = temp[j];
+
+            if (level) {
+                level += 64;
+                if ((level & (~127)) == 0)
+                    bits += length[UNI_AC_ENC_INDEX(run, level)];
+                else
+                    bits += esc_length;
+                run = 0;
+            } else
+                run++;
+        }
+        i = scantable[last];
+
+        level = temp[i] + 64;
+
+        av_assert2(level - 64);
+
+        if ((level & (~127)) == 0)
+            bits += last_length[UNI_AC_ENC_INDEX(run, level)];
+        else
+            bits += esc_length;
+    }
+
+    return bits;
+}
+
+#define VSAD_INTRA(size)                                                \
+static int vsad_intra ## size ## _c(MpegEncContext *c,                  \
+                                    uint8_t *s, uint8_t *dummy,         \
+                                    ptrdiff_t stride, int h)            \
+{                                                                       \
+    int score = 0, x, y;                                                \
+                                                                        \
+    for (y = 1; y < h; y++) {                                           \
+        for (x = 0; x < size; x += 4) {                                 \
+            score += FFABS(s[x]     - s[x + stride])     +              \
+                     FFABS(s[x + 1] - s[x + stride + 1]) +              \
+                     FFABS(s[x + 2] - s[x + 2 + stride]) +              \
+                     FFABS(s[x + 3] - s[x + 3 + stride]);               \
+        }                                                               \
+        s += stride;                                                    \
+    }                                                                   \
+                                                                        \
+    return score;                                                       \
+}
+VSAD_INTRA(8)
+VSAD_INTRA(16)
+
+#define VSAD(size)                                                             \
+static int vsad ## size ## _c(MpegEncContext *c,                               \
+                              uint8_t *s1, uint8_t *s2,                        \
+                              ptrdiff_t stride, int h)                               \
+{                                                                              \
+    int score = 0, x, y;                                                       \
+                                                                               \
+    for (y = 1; y < h; y++) {                                                  \
+        for (x = 0; x < size; x++)                                             \
+            score += FFABS(s1[x] - s2[x] - s1[x + stride] + s2[x + stride]);   \
+        s1 += stride;                                                          \
+        s2 += stride;                                                          \
+    }                                                                          \
+                                                                               \
+    return score;                                                              \
+}
+VSAD(8)
+VSAD(16)
+
+#define SQ(a) ((a) * (a))
+#define VSSE_INTRA(size)                                                \
+static int vsse_intra ## size ## _c(MpegEncContext *c,                  \
+                                    uint8_t *s, uint8_t *dummy,         \
+                                    ptrdiff_t stride, int h)            \
+{                                                                       \
+    int score = 0, x, y;                                                \
+                                                                        \
+    for (y = 1; y < h; y++) {                                           \
+        for (x = 0; x < size; x += 4) {                                 \
+            score += SQ(s[x]     - s[x + stride]) +                     \
+                     SQ(s[x + 1] - s[x + stride + 1]) +                 \
+                     SQ(s[x + 2] - s[x + stride + 2]) +                 \
+                     SQ(s[x + 3] - s[x + stride + 3]);                  \
+        }                                                               \
+        s += stride;                                                    \
+    }                                                                   \
+                                                                        \
+    return score;                                                       \
+}
+VSSE_INTRA(8)
+VSSE_INTRA(16)
+
+#define VSSE(size)                                                             \
+static int vsse ## size ## _c(MpegEncContext *c, uint8_t *s1, uint8_t *s2,     \
+                              ptrdiff_t stride, int h)                         \
+{                                                                              \
+    int score = 0, x, y;                                                       \
+                                                                               \
+    for (y = 1; y < h; y++) {                                                  \
+        for (x = 0; x < size; x++)                                             \
+            score += SQ(s1[x] - s2[x] - s1[x + stride] + s2[x + stride]);      \
+        s1 += stride;                                                          \
+        s2 += stride;                                                          \
+    }                                                                          \
+                                                                               \
+    return score;                                                              \
+}
+VSSE(8)
+VSSE(16)
+
+#define WRAPPER8_16_SQ(name8, name16)                                   \
+static int name16(MpegEncContext *s, uint8_t *dst, uint8_t *src,        \
+                  ptrdiff_t stride, int h)                              \
+{                                                                       \
+    int score = 0;                                                      \
+                                                                        \
+    score += name8(s, dst, src, stride, 8);                             \
+    score += name8(s, dst + 8, src + 8, stride, 8);                     \
+    if (h == 16) {                                                      \
+        dst   += 8 * stride;                                            \
+        src   += 8 * stride;                                            \
+        score += name8(s, dst, src, stride, 8);                         \
+        score += name8(s, dst + 8, src + 8, stride, 8);                 \
+    }                                                                   \
+    return score;                                                       \
+}
+
+WRAPPER8_16_SQ(hadamard8_diff8x8_c, hadamard8_diff16_c)
+WRAPPER8_16_SQ(hadamard8_intra8x8_c, hadamard8_intra16_c)
+WRAPPER8_16_SQ(dct_sad8x8_c, dct_sad16_c)
+#if CONFIG_GPL
+WRAPPER8_16_SQ(dct264_sad8x8_c, dct264_sad16_c)
+#endif
+WRAPPER8_16_SQ(dct_max8x8_c, dct_max16_c)
+WRAPPER8_16_SQ(quant_psnr8x8_c, quant_psnr16_c)
+WRAPPER8_16_SQ(rd8x8_c, rd16_c)
+WRAPPER8_16_SQ(bit8x8_c, bit16_c)
+
+int ff_check_alignment(void)
+{
+    static int did_fail = 0;
+    LOCAL_ALIGNED_16(int, aligned, [4]);
+
+    if ((intptr_t)aligned & 15) {
+        if (!did_fail) {
+#if HAVE_MMX || HAVE_ALTIVEC
+            av_log(NULL, AV_LOG_ERROR,
+                "Compiler did not align stack variables. Libavcodec has been miscompiled\n"
+                "and may be very slow or crash. This is not a bug in libavcodec,\n"
+                "but in the compiler. You may try recompiling using gcc >= 4.2.\n"
+                "Do not report crashes to FFmpeg developers.\n");
+#endif
+            did_fail=1;
+        }
+        return -1;
+    }
+    return 0;
+}
+
+av_cold void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx)
+{
+    ff_check_alignment();
+
+    c->sum_abs_dctelem = sum_abs_dctelem_c;
+
+    /* TODO [0] 16  [1] 8 */
+    c->pix_abs[0][0] = pix_abs16_c;
+    c->pix_abs[0][1] = pix_abs16_x2_c;
+    c->pix_abs[0][2] = pix_abs16_y2_c;
+    c->pix_abs[0][3] = pix_abs16_xy2_c;
+    c->pix_abs[1][0] = pix_abs8_c;
+    c->pix_abs[1][1] = pix_abs8_x2_c;
+    c->pix_abs[1][2] = pix_abs8_y2_c;
+    c->pix_abs[1][3] = pix_abs8_xy2_c;
+
+#define SET_CMP_FUNC(name)                      \
+    c->name[0] = name ## 16_c;                  \
+    c->name[1] = name ## 8x8_c;
+
+    SET_CMP_FUNC(hadamard8_diff)
+    c->hadamard8_diff[4] = hadamard8_intra16_c;
+    c->hadamard8_diff[5] = hadamard8_intra8x8_c;
+    SET_CMP_FUNC(dct_sad)
+    SET_CMP_FUNC(dct_max)
+#if CONFIG_GPL
+    SET_CMP_FUNC(dct264_sad)
+#endif
+    c->sad[0] = pix_abs16_c;
+    c->sad[1] = pix_abs8_c;
+    c->sse[0] = sse16_c;
+    c->sse[1] = sse8_c;
+    c->sse[2] = sse4_c;
+    SET_CMP_FUNC(quant_psnr)
+    SET_CMP_FUNC(rd)
+    SET_CMP_FUNC(bit)
+    c->vsad[0] = vsad16_c;
+    c->vsad[1] = vsad8_c;
+    c->vsad[4] = vsad_intra16_c;
+    c->vsad[5] = vsad_intra8_c;
+    c->vsse[0] = vsse16_c;
+    c->vsse[1] = vsse8_c;
+    c->vsse[4] = vsse_intra16_c;
+    c->vsse[5] = vsse_intra8_c;
+    c->nsse[0] = nsse16_c;
+    c->nsse[1] = nsse8_c;
+#if CONFIG_SNOW_DECODER || CONFIG_SNOW_ENCODER
+    ff_dsputil_init_dwt(c);
+#endif
+
+    if (ARCH_ALPHA)
+        ff_me_cmp_init_alpha(c, avctx);
+    if (ARCH_ARM)
+        ff_me_cmp_init_arm(c, avctx);
+    if (ARCH_PPC)
+        ff_me_cmp_init_ppc(c, avctx);
+    if (ARCH_X86)
+        ff_me_cmp_init_x86(c, avctx);
+    if (ARCH_MIPS)
+        ff_me_cmp_init_mips(c, avctx);
+
+    c->median_sad[0] = pix_median_abs16_c;
+    c->median_sad[1] = pix_median_abs8_c;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/me_cmp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/me_cmp.h
new file mode 100644
index 000000000..0a589e3c3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/me_cmp.h
@@ -0,0 +1,95 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_ME_CMP_H
+#define AVCODEC_ME_CMP_H
+
+#include <stdint.h>
+
+#include "avcodec.h"
+
+extern const uint32_t ff_square_tab[512];
+
+
+/* minimum alignment rules ;)
+ * If you notice errors in the align stuff, need more alignment for some ASM code
+ * for some CPU or need to use a function with less aligned data then send a mail
+ * to the ffmpeg-devel mailing list, ...
+ *
+ * !warning These alignments might not match reality, (missing attribute((align))
+ * stuff somewhere possible).
+ * I (Michael) did not check them, these are just the alignments which I think
+ * could be reached easily ...
+ *
+ * !future video codecs might need functions with less strict alignment
+ */
+
+struct MpegEncContext;
+/* Motion estimation:
+ * h is limited to { width / 2, width, 2 * width },
+ * but never larger than 16 and never smaller than 2.
+ * Although currently h < 4 is not used as functions with
+ * width < 8 are neither used nor implemented. */
+typedef int (*me_cmp_func)(struct MpegEncContext *c,
+                           uint8_t *blk1 /* align width (8 or 16) */,
+                           uint8_t *blk2 /* align 1 */, ptrdiff_t stride,
+                           int h);
+
+typedef struct MECmpContext {
+    int (*sum_abs_dctelem)(int16_t *block /* align 16 */);
+
+    me_cmp_func sad[6]; /* identical to pix_absAxA except additional void * */
+    me_cmp_func sse[6];
+    me_cmp_func hadamard8_diff[6];
+    me_cmp_func dct_sad[6];
+    me_cmp_func quant_psnr[6];
+    me_cmp_func bit[6];
+    me_cmp_func rd[6];
+    me_cmp_func vsad[6];
+    me_cmp_func vsse[6];
+    me_cmp_func nsse[6];
+    me_cmp_func w53[6];
+    me_cmp_func w97[6];
+    me_cmp_func dct_max[6];
+    me_cmp_func dct264_sad[6];
+
+    me_cmp_func me_pre_cmp[6];
+    me_cmp_func me_cmp[6];
+    me_cmp_func me_sub_cmp[6];
+    me_cmp_func mb_cmp[6];
+    me_cmp_func ildct_cmp[6]; // only width 16 used
+    me_cmp_func frame_skip_cmp[6]; // only width 8 used
+
+    me_cmp_func pix_abs[2][4];
+    me_cmp_func median_sad[6];
+} MECmpContext;
+
+int ff_check_alignment(void);
+
+void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx);
+void ff_me_cmp_init_alpha(MECmpContext *c, AVCodecContext *avctx);
+void ff_me_cmp_init_arm(MECmpContext *c, AVCodecContext *avctx);
+void ff_me_cmp_init_ppc(MECmpContext *c, AVCodecContext *avctx);
+void ff_me_cmp_init_x86(MECmpContext *c, AVCodecContext *avctx);
+void ff_me_cmp_init_mips(MECmpContext *c, AVCodecContext *avctx);
+
+void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type);
+
+void ff_dsputil_init_dwt(MECmpContext *c);
+
+#endif /* AVCODEC_ME_CMP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec.c
new file mode 100644
index 000000000..aa14624fd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec.c
@@ -0,0 +1,149 @@
+/*
+ * Android MediaCodec public API functions
+ *
+ * Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/error.h"
+
+#include "mediacodec.h"
+
+#if CONFIG_MEDIACODEC
+
+#include <jni.h>
+
+#include "libavcodec/avcodec.h"
+#include "libavutil/mem.h"
+
+#include "ffjni.h"
+#include "mediacodecdec_common.h"
+#include "version.h"
+
+AVMediaCodecContext *av_mediacodec_alloc_context(void)
+{
+    return av_mallocz(sizeof(AVMediaCodecContext));
+}
+
+int av_mediacodec_default_init(AVCodecContext *avctx, AVMediaCodecContext *ctx, void *surface)
+{
+    int ret = 0;
+    JNIEnv *env = NULL;
+
+    env = ff_jni_get_env(avctx);
+    if (!env) {
+        return AVERROR_EXTERNAL;
+    }
+
+    ctx->surface = (*env)->NewGlobalRef(env, surface);
+    if (ctx->surface) {
+        avctx->hwaccel_context = ctx;
+    } else {
+        av_log(avctx, AV_LOG_ERROR, "Could not create new global reference\n");
+        ret = AVERROR_EXTERNAL;
+    }
+
+    return ret;
+}
+
+void av_mediacodec_default_free(AVCodecContext *avctx)
+{
+    JNIEnv *env = NULL;
+
+    AVMediaCodecContext *ctx = avctx->hwaccel_context;
+
+    if (!ctx) {
+        return;
+    }
+
+    env = ff_jni_get_env(avctx);
+    if (!env) {
+        return;
+    }
+
+    if (ctx->surface) {
+        (*env)->DeleteGlobalRef(env, ctx->surface);
+        ctx->surface = NULL;
+    }
+
+    av_freep(&avctx->hwaccel_context);
+}
+
+int av_mediacodec_release_buffer(AVMediaCodecBuffer *buffer, int render)
+{
+    MediaCodecDecContext *ctx = buffer->ctx;
+    int released = atomic_fetch_add(&buffer->released, 1);
+
+    if (!released && (ctx->delay_flush || buffer->serial == atomic_load(&ctx->serial))) {
+        atomic_fetch_sub(&ctx->hw_buffer_count, 1);
+        av_log(ctx->avctx, AV_LOG_DEBUG,
+               "Releasing output buffer %zd (%p) ts=%"PRId64" with render=%d [%d pending]\n",
+               buffer->index, buffer, buffer->pts, render, atomic_load(&ctx->hw_buffer_count));
+        return ff_AMediaCodec_releaseOutputBuffer(ctx->codec, buffer->index, render);
+    }
+
+    return 0;
+}
+
+int av_mediacodec_render_buffer_at_time(AVMediaCodecBuffer *buffer, int64_t time)
+{
+    MediaCodecDecContext *ctx = buffer->ctx;
+    int released = atomic_fetch_add(&buffer->released, 1);
+
+    if (!released && (ctx->delay_flush || buffer->serial == atomic_load(&ctx->serial))) {
+        atomic_fetch_sub(&ctx->hw_buffer_count, 1);
+        av_log(ctx->avctx, AV_LOG_DEBUG,
+               "Rendering output buffer %zd (%p) ts=%"PRId64" with time=%"PRId64" [%d pending]\n",
+               buffer->index, buffer, buffer->pts, time, atomic_load(&ctx->hw_buffer_count));
+        return ff_AMediaCodec_releaseOutputBufferAtTime(ctx->codec, buffer->index, time);
+    }
+
+    return 0;
+}
+
+#else
+
+#include <stdlib.h>
+
+AVMediaCodecContext *av_mediacodec_alloc_context(void)
+{
+    return NULL;
+}
+
+int av_mediacodec_default_init(AVCodecContext *avctx, AVMediaCodecContext *ctx, void *surface)
+{
+    return AVERROR(ENOSYS);
+}
+
+void av_mediacodec_default_free(AVCodecContext *avctx)
+{
+}
+
+int av_mediacodec_release_buffer(AVMediaCodecBuffer *buffer, int render)
+{
+    return AVERROR(ENOSYS);
+}
+
+int av_mediacodec_render_buffer_at_time(AVMediaCodecBuffer *buffer, int64_t time)
+{
+    return AVERROR(ENOSYS);
+}
+
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec.h
new file mode 100644
index 000000000..4c8545df0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec.h
@@ -0,0 +1,101 @@
+/*
+ * Android MediaCodec public API
+ *
+ * Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MEDIACODEC_H
+#define AVCODEC_MEDIACODEC_H
+
+#include "libavcodec/avcodec.h"
+
+/**
+ * This structure holds a reference to a android/view/Surface object that will
+ * be used as output by the decoder.
+ *
+ */
+typedef struct AVMediaCodecContext {
+
+    /**
+     * android/view/Surface object reference.
+     */
+    void *surface;
+
+} AVMediaCodecContext;
+
+/**
+ * Allocate and initialize a MediaCodec context.
+ *
+ * When decoding with MediaCodec is finished, the caller must free the
+ * MediaCodec context with av_mediacodec_default_free.
+ *
+ * @return a pointer to a newly allocated AVMediaCodecContext on success, NULL otherwise
+ */
+AVMediaCodecContext *av_mediacodec_alloc_context(void);
+
+/**
+ * Convenience function that sets up the MediaCodec context.
+ *
+ * @param avctx codec context
+ * @param ctx MediaCodec context to initialize
+ * @param surface reference to an android/view/Surface
+ * @return 0 on success, < 0 otherwise
+ */
+int av_mediacodec_default_init(AVCodecContext *avctx, AVMediaCodecContext *ctx, void *surface);
+
+/**
+ * This function must be called to free the MediaCodec context initialized with
+ * av_mediacodec_default_init().
+ *
+ * @param avctx codec context
+ */
+void av_mediacodec_default_free(AVCodecContext *avctx);
+
+/**
+ * Opaque structure representing a MediaCodec buffer to render.
+ */
+typedef struct MediaCodecBuffer AVMediaCodecBuffer;
+
+/**
+ * Release a MediaCodec buffer and render it to the surface that is associated
+ * with the decoder. This function should only be called once on a given
+ * buffer, once released the underlying buffer returns to the codec, thus
+ * subsequent calls to this function will have no effect.
+ *
+ * @param buffer the buffer to render
+ * @param render 1 to release and render the buffer to the surface or 0 to
+ * discard the buffer
+ * @return 0 on success, < 0 otherwise
+ */
+int av_mediacodec_release_buffer(AVMediaCodecBuffer *buffer, int render);
+
+/**
+ * Release a MediaCodec buffer and render it at the given time to the surface
+ * that is associated with the decoder. The timestamp must be within one second
+ * of the current java/lang/System#nanoTime() (which is implemented using
+ * CLOCK_MONOTONIC on Android). See the Android MediaCodec documentation
+ * of android/media/MediaCodec#releaseOutputBuffer(int,long) for more details.
+ *
+ * @param buffer the buffer to render
+ * @param time timestamp in nanoseconds of when to render the buffer
+ * @return 0 on success, < 0 otherwise
+ */
+int av_mediacodec_render_buffer_at_time(AVMediaCodecBuffer *buffer, int64_t time);
+
+#endif /* AVCODEC_MEDIACODEC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec_surface.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec_surface.h
new file mode 100644
index 000000000..0178b8ae7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec_surface.h
@@ -0,0 +1,31 @@
+/*
+ * Android MediaCodec Surface functions
+ *
+ * Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MEDIACODEC_SURFACE_H
+#define AVCODEC_MEDIACODEC_SURFACE_H
+
+#include "libavcodec/avcodec.h"
+
+void *ff_mediacodec_surface_ref(void *surface, void *log_ctx);
+int ff_mediacodec_surface_unref(void *surface, void *log_ctx);
+
+#endif /* AVCODEC_MEDIACODEC_SURFACE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec_sw_buffer.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec_sw_buffer.h
new file mode 100644
index 000000000..574fb529d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec_sw_buffer.h
@@ -0,0 +1,62 @@
+/*
+ * Android MediaCodec software buffer copy functions
+ *
+ * Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MEDIACODEC_SW_BUFFER_H
+#define AVCODEC_MEDIACODEC_SW_BUFFER_H
+
+#include <sys/types.h>
+
+#include "libavutil/frame.h"
+
+#include "avcodec.h"
+#include "mediacodec_wrapper.h"
+#include "mediacodecdec_common.h"
+
+void ff_mediacodec_sw_buffer_copy_yuv420_planar(AVCodecContext *avctx,
+                                                MediaCodecDecContext *s,
+                                                uint8_t *data,
+                                                size_t size,
+                                                FFAMediaCodecBufferInfo *info,
+                                                AVFrame *frame);
+
+void ff_mediacodec_sw_buffer_copy_yuv420_semi_planar(AVCodecContext *avctx,
+                                                     MediaCodecDecContext *s,
+                                                     uint8_t *data,
+                                                     size_t size,
+                                                     FFAMediaCodecBufferInfo *info,
+                                                     AVFrame *frame);
+
+void ff_mediacodec_sw_buffer_copy_yuv420_packed_semi_planar(AVCodecContext *avctx,
+                                                     MediaCodecDecContext *s,
+                                                     uint8_t *data,
+                                                     size_t size,
+                                                     FFAMediaCodecBufferInfo *info,
+                                                     AVFrame *frame);
+
+void ff_mediacodec_sw_buffer_copy_yuv420_packed_semi_planar_64x32Tile2m8ka(AVCodecContext *avctx,
+                                                     MediaCodecDecContext *s,
+                                                     uint8_t *data,
+                                                     size_t size,
+                                                     FFAMediaCodecBufferInfo *info,
+                                                     AVFrame *frame);
+
+#endif /* AVCODEC_MEDIACODEC_SW_BUFFER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec_wrapper.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec_wrapper.h
new file mode 100644
index 000000000..b106ff315
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodec_wrapper.h
@@ -0,0 +1,131 @@
+/*
+ * Android MediaCodec Wrapper
+ *
+ * Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MEDIACODEC_WRAPPER_H
+#define AVCODEC_MEDIACODEC_WRAPPER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include "avcodec.h"
+
+/**
+ * The following API around MediaCodec and MediaFormat is based on the
+ * NDK one provided by Google since Android 5.0.
+ *
+ * Differences from the NDK API:
+ *
+ * Buffers returned by ff_AMediaFormat_toString and ff_AMediaFormat_getString
+ * are newly allocated buffer and must be freed by the user after use.
+ *
+ * The MediaCrypto API is not implemented.
+ *
+ * ff_AMediaCodec_infoTryAgainLater, ff_AMediaCodec_infoOutputBuffersChanged,
+ * ff_AMediaCodec_infoOutputFormatChanged, ff_AMediaCodec_cleanOutputBuffers
+ * ff_AMediaCodec_getName and ff_AMediaCodec_getBufferFlagEndOfStream are not
+ * part of the original NDK API and are convenience functions to hide JNI
+ * implementation.
+ *
+ * The API around MediaCodecList is not part of the NDK (and is lacking as
+ * we still need to retrieve the codec name to work around faulty decoders
+ * and encoders).
+ *
+ * For documentation, please refers to NdkMediaCodec.h NdkMediaFormat.h and
+ * http://developer.android.com/reference/android/media/MediaCodec.html.
+ *
+ */
+
+int ff_AMediaCodecProfile_getProfileFromAVCodecContext(AVCodecContext *avctx);
+
+char *ff_AMediaCodecList_getCodecNameByType(const char *mime, int profile, int encoder, void *log_ctx);
+
+struct FFAMediaFormat;
+typedef struct FFAMediaFormat FFAMediaFormat;
+
+FFAMediaFormat *ff_AMediaFormat_new(void);
+int ff_AMediaFormat_delete(FFAMediaFormat* format);
+
+char* ff_AMediaFormat_toString(FFAMediaFormat* format);
+
+int ff_AMediaFormat_getInt32(FFAMediaFormat* format, const char *name, int32_t *out);
+int ff_AMediaFormat_getInt64(FFAMediaFormat* format, const char *name, int64_t *out);
+int ff_AMediaFormat_getFloat(FFAMediaFormat* format, const char *name, float *out);
+int ff_AMediaFormat_getBuffer(FFAMediaFormat* format, const char *name, void** data, size_t *size);
+int ff_AMediaFormat_getString(FFAMediaFormat* format, const char *name, const char **out);
+
+void ff_AMediaFormat_setInt32(FFAMediaFormat* format, const char* name, int32_t value);
+void ff_AMediaFormat_setInt64(FFAMediaFormat* format, const char* name, int64_t value);
+void ff_AMediaFormat_setFloat(FFAMediaFormat* format, const char* name, float value);
+void ff_AMediaFormat_setString(FFAMediaFormat* format, const char* name, const char* value);
+void ff_AMediaFormat_setBuffer(FFAMediaFormat* format, const char* name, void* data, size_t size);
+
+struct FFAMediaCodec;
+typedef struct FFAMediaCodec FFAMediaCodec;
+typedef struct FFAMediaCodecCryptoInfo FFAMediaCodecCryptoInfo;
+
+struct FFAMediaCodecBufferInfo {
+    int32_t offset;
+    int32_t size;
+    int64_t presentationTimeUs;
+    uint32_t flags;
+};
+typedef struct FFAMediaCodecBufferInfo FFAMediaCodecBufferInfo;
+
+char *ff_AMediaCodec_getName(FFAMediaCodec *codec);
+
+FFAMediaCodec* ff_AMediaCodec_createCodecByName(const char *name);
+FFAMediaCodec* ff_AMediaCodec_createDecoderByType(const char *mime_type);
+FFAMediaCodec* ff_AMediaCodec_createEncoderByType(const char *mime_type);
+
+int ff_AMediaCodec_configure(FFAMediaCodec* codec, const FFAMediaFormat* format, void* surface, void *crypto, uint32_t flags);
+int ff_AMediaCodec_start(FFAMediaCodec* codec);
+int ff_AMediaCodec_stop(FFAMediaCodec* codec);
+int ff_AMediaCodec_flush(FFAMediaCodec* codec);
+int ff_AMediaCodec_delete(FFAMediaCodec* codec);
+
+uint8_t* ff_AMediaCodec_getInputBuffer(FFAMediaCodec* codec, size_t idx, size_t *out_size);
+uint8_t* ff_AMediaCodec_getOutputBuffer(FFAMediaCodec* codec, size_t idx, size_t *out_size);
+
+ssize_t ff_AMediaCodec_dequeueInputBuffer(FFAMediaCodec* codec, int64_t timeoutUs);
+int ff_AMediaCodec_queueInputBuffer(FFAMediaCodec* codec, size_t idx, off_t offset, size_t size, uint64_t time, uint32_t flags);
+
+ssize_t ff_AMediaCodec_dequeueOutputBuffer(FFAMediaCodec* codec, FFAMediaCodecBufferInfo *info, int64_t timeoutUs);
+FFAMediaFormat* ff_AMediaCodec_getOutputFormat(FFAMediaCodec* codec);
+
+int ff_AMediaCodec_releaseOutputBuffer(FFAMediaCodec* codec, size_t idx, int render);
+int ff_AMediaCodec_releaseOutputBufferAtTime(FFAMediaCodec *codec, size_t idx, int64_t timestampNs);
+
+int ff_AMediaCodec_infoTryAgainLater(FFAMediaCodec *codec, ssize_t idx);
+int ff_AMediaCodec_infoOutputBuffersChanged(FFAMediaCodec *codec, ssize_t idx);
+int ff_AMediaCodec_infoOutputFormatChanged(FFAMediaCodec *codec, ssize_t indx);
+
+int ff_AMediaCodec_getBufferFlagCodecConfig (FFAMediaCodec *codec);
+int ff_AMediaCodec_getBufferFlagEndOfStream(FFAMediaCodec *codec);
+int ff_AMediaCodec_getBufferFlagKeyFrame(FFAMediaCodec *codec);
+
+int ff_AMediaCodec_getConfigureFlagEncode(FFAMediaCodec *codec);
+
+int ff_AMediaCodec_cleanOutputBuffers(FFAMediaCodec *codec);
+
+int ff_Build_SDK_INT(AVCodecContext *avctx);
+
+#endif /* AVCODEC_MEDIACODEC_WRAPPER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodecdec_common.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodecdec_common.h
new file mode 100644
index 000000000..0b21129fe
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mediacodecdec_common.h
@@ -0,0 +1,109 @@
+/*
+ * Android MediaCodec decoder
+ *
+ * Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MEDIACODECDEC_COMMON_H
+#define AVCODEC_MEDIACODECDEC_COMMON_H
+
+#include <stdint.h>
+#include <stdatomic.h>
+#include <stdbool.h>
+#include <sys/types.h>
+
+#include "libavutil/frame.h"
+#include "libavutil/pixfmt.h"
+
+#include "avcodec.h"
+#include "mediacodec_wrapper.h"
+
+typedef struct MediaCodecDecContext {
+
+    AVCodecContext *avctx;
+    atomic_int refcount;
+    atomic_int hw_buffer_count;
+
+    char *codec_name;
+
+    FFAMediaCodec *codec;
+    FFAMediaFormat *format;
+
+    void *surface;
+
+    int started;
+    int draining;
+    int flushing;
+    int eos;
+
+    int width;
+    int height;
+    int stride;
+    int slice_height;
+    int color_format;
+    int crop_top;
+    int crop_bottom;
+    int crop_left;
+    int crop_right;
+    int display_width;
+    int display_height;
+
+    uint64_t output_buffer_count;
+    ssize_t current_input_buffer;
+
+    bool delay_flush;
+    atomic_int serial;
+
+} MediaCodecDecContext;
+
+int ff_mediacodec_dec_init(AVCodecContext *avctx,
+                           MediaCodecDecContext *s,
+                           const char *mime,
+                           FFAMediaFormat *format);
+
+int ff_mediacodec_dec_send(AVCodecContext *avctx,
+                           MediaCodecDecContext *s,
+                           AVPacket *pkt,
+                           bool wait);
+
+int ff_mediacodec_dec_receive(AVCodecContext *avctx,
+                              MediaCodecDecContext *s,
+                              AVFrame *frame,
+                              bool wait);
+
+int ff_mediacodec_dec_flush(AVCodecContext *avctx,
+                            MediaCodecDecContext *s);
+
+int ff_mediacodec_dec_close(AVCodecContext *avctx,
+                            MediaCodecDecContext *s);
+
+int ff_mediacodec_dec_is_flushing(AVCodecContext *avctx,
+                                  MediaCodecDecContext *s);
+
+typedef struct MediaCodecBuffer {
+
+    MediaCodecDecContext *ctx;
+    ssize_t index;
+    int64_t pts;
+    atomic_int released;
+    int serial;
+
+} MediaCodecBuffer;
+
+#endif /* AVCODEC_MEDIACODECDEC_COMMON_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mjpegenc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mjpegenc.h
new file mode 100644
index 000000000..d7ddc35ef
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mjpegenc.h
@@ -0,0 +1,111 @@
+/*
+ * MJPEG encoder
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2003 Alex Beregszaszi
+ * Copyright (c) 2003-2004 Michael Niedermayer
+ *
+ * Support for external huffman table, various fixes (AVID workaround),
+ * aspecting, new decode_frame mechanism and apple mjpeg-b support
+ *                                  by Alex Beregszaszi
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * MJPEG encoder.
+ */
+
+#ifndef AVCODEC_MJPEGENC_H
+#define AVCODEC_MJPEGENC_H
+
+#include <stdint.h>
+
+#include "mjpeg.h"
+#include "mpegvideo.h"
+#include "put_bits.h"
+
+/**
+ * Buffer of JPEG frame data.
+ *
+ * Optimal Huffman table generation requires the frame data to be loaded into
+ * a buffer so that the tables can be computed.
+ * There are at most mb_width*mb_height*12*64 of these per frame.
+ */
+typedef struct MJpegHuffmanCode {
+    // 0=DC lum, 1=DC chrom, 2=AC lum, 3=AC chrom
+    uint8_t table_id; ///< The Huffman table id associated with the data.
+    uint8_t code;     ///< The exponent.
+    uint16_t mant;    ///< The mantissa.
+} MJpegHuffmanCode;
+
+/**
+ * Holds JPEG frame data and Huffman table data.
+ */
+typedef struct MJpegContext {
+    //FIXME use array [3] instead of lumi / chroma, for easier addressing
+    uint8_t huff_size_dc_luminance[12];     ///< DC luminance Huffman table size.
+    uint16_t huff_code_dc_luminance[12];    ///< DC luminance Huffman table codes.
+    uint8_t huff_size_dc_chrominance[12];   ///< DC chrominance Huffman table size.
+    uint16_t huff_code_dc_chrominance[12];  ///< DC chrominance Huffman table codes.
+
+    uint8_t huff_size_ac_luminance[256];    ///< AC luminance Huffman table size.
+    uint16_t huff_code_ac_luminance[256];   ///< AC luminance Huffman table codes.
+    uint8_t huff_size_ac_chrominance[256];  ///< AC chrominance Huffman table size.
+    uint16_t huff_code_ac_chrominance[256]; ///< AC chrominance Huffman table codes.
+
+    /** Storage for AC luminance VLC (in MpegEncContext) */
+    uint8_t uni_ac_vlc_len[64 * 64 * 2];
+    /** Storage for AC chrominance VLC (in MpegEncContext) */
+    uint8_t uni_chroma_ac_vlc_len[64 * 64 * 2];
+
+    // Default DC tables have exactly 12 values
+    uint8_t bits_dc_luminance[17];   ///< DC luminance Huffman bits.
+    uint8_t val_dc_luminance[12];    ///< DC luminance Huffman values.
+    uint8_t bits_dc_chrominance[17]; ///< DC chrominance Huffman bits.
+    uint8_t val_dc_chrominance[12];  ///< DC chrominance Huffman values.
+
+    // 8-bit JPEG has max 256 values
+    uint8_t bits_ac_luminance[17];   ///< AC luminance Huffman bits.
+    uint8_t val_ac_luminance[256];   ///< AC luminance Huffman values.
+    uint8_t bits_ac_chrominance[17]; ///< AC chrominance Huffman bits.
+    uint8_t val_ac_chrominance[256]; ///< AC chrominance Huffman values.
+
+    size_t huff_ncode;               ///< Number of current entries in the buffer.
+    MJpegHuffmanCode *huff_buffer;   ///< Buffer for Huffman code values.
+} MJpegContext;
+
+/**
+ * Enum for the Huffman encoding strategy.
+ */
+enum HuffmanTableOption {
+    HUFFMAN_TABLE_DEFAULT = 0, ///< Use the default Huffman tables.
+    HUFFMAN_TABLE_OPTIMAL = 1, ///< Compute and use optimal Huffman tables.
+    NB_HUFFMAN_TABLE_OPTION = 2
+};
+
+static inline void put_marker(PutBitContext *p, enum JpegMarker code)
+{
+    put_bits(p, 8, 0xff);
+    put_bits(p, 8, code);
+}
+
+int  ff_mjpeg_encode_init(MpegEncContext *s);
+void ff_mjpeg_encode_close(MpegEncContext *s);
+void ff_mjpeg_encode_mb(MpegEncContext *s, int16_t block[12][64]);
+
+#endif /* AVCODEC_MJPEGENC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mjpegenc_common.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mjpegenc_common.h
new file mode 100644
index 000000000..e8698d18c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mjpegenc_common.h
@@ -0,0 +1,46 @@
+/*
+ * lossless JPEG shared bits
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MJPEGENC_COMMON_H
+#define AVCODEC_MJPEGENC_COMMON_H
+
+#include <stdint.h>
+
+#include "avcodec.h"
+#include "idctdsp.h"
+#include "mpegvideo.h"
+#include "put_bits.h"
+
+void ff_mjpeg_encode_picture_header(AVCodecContext *avctx, PutBitContext *pb,
+                                    ScanTable *intra_scantable, int pred,
+                                    uint16_t luma_intra_matrix[64],
+                                    uint16_t chroma_intra_matrix[64]);
+void ff_mjpeg_encode_picture_frame(MpegEncContext *s);
+void ff_mjpeg_encode_picture_trailer(PutBitContext *pb, int header_bits);
+void ff_mjpeg_escape_FF(PutBitContext *pb, int start);
+int ff_mjpeg_encode_stuffing(MpegEncContext *s);
+void ff_mjpeg_init_hvsample(AVCodecContext *avctx, int hsample[4], int vsample[4]);
+
+void ff_mjpeg_encode_dc(PutBitContext *pb, int val,
+                        uint8_t *huff_size, uint16_t *huff_code);
+
+av_cold void ff_init_uni_ac_vlc(const uint8_t huff_size_ac[256], uint8_t *uni_ac_vlc_len);
+
+#endif /* AVCODEC_MJPEGENC_COMMON_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mjpegenc_huffman.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mjpegenc_huffman.c
new file mode 100644
index 000000000..0e63f8066
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mjpegenc_huffman.c
@@ -0,0 +1,192 @@
+/*
+ * MJPEG encoder
+ * Copyright (c) 2016 William Ma, Ted Ying, Jerry Jiang
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <string.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include "libavutil/avassert.h"
+#include "libavutil/common.h"
+#include "libavutil/error.h"
+#include "libavutil/qsort.h"
+#include "mjpegenc_huffman.h"
+
+/**
+ * Comparison function for two PTables by prob
+ *
+ * @param a First PTable to compare
+ * @param b Second PTable to compare
+ * @return < 0 for less than, 0 for equals, > 0 for greater than
+ */
+static int compare_by_prob(const void *a, const void *b)
+{
+    PTable a_val = *(PTable *) a;
+    PTable b_val = *(PTable *) b;
+    return a_val.prob - b_val.prob;
+}
+
+/**
+ * Comparison function for two HuffTables by length
+ *
+ * @param a First HuffTable to compare
+ * @param b Second HuffTable to compare
+ * @return < 0 for less than, 0 for equals, > 0 for greater than
+ */
+static int compare_by_length(const void *a, const void *b)
+{
+    HuffTable a_val = *(HuffTable *) a;
+    HuffTable b_val = *(HuffTable *) b;
+    return a_val.length - b_val.length;
+}
+
+/**
+ * Computes the length of the Huffman encoding for each distinct input value.
+ * Uses package merge algorithm as follows:
+ * 1. start with an empty list, lets call it list(0), set i = 0
+ * 2. add 1 entry to list(i) for each symbol we have and give each a score equal to the probability of the respective symbol
+ * 3. merge the 2 symbols of least score and put them in list(i+1), and remove them from list(i). The new score will be the sum of the 2 scores
+ * 4. if there is more than 1 symbol left in the current list(i), then goto 3
+ * 5. i++
+ * 6. if i < 16 goto 2
+ * 7. select the n-1 elements in the last list with the lowest score (n = the number of symbols)
+ * 8. the length of the huffman code for symbol s will be equal to the number of times the symbol occurs in the select elements
+ * Go to guru.multimedia.cx/small-tasks-for-ffmpeg/ for more details
+ *
+ * All probabilities should be positive integers. The output is sorted by code,
+ * not by length.
+ *
+ * @param prob_table input array of a PTable for each distinct input value
+ * @param distincts  output array of a HuffTable that will be populated by this function
+ * @param size       size of the prob_table array
+ * @param max_length max length of an encoding
+ */
+void ff_mjpegenc_huffman_compute_bits(PTable *prob_table, HuffTable *distincts, int size, int max_length)
+{
+    PackageMergerList list_a, list_b, *to = &list_a, *from = &list_b, *temp;
+
+    int times, i, j, k;
+
+    int nbits[257] = {0};
+
+    int min;
+
+    av_assert0(max_length > 0);
+
+    to->nitems = 0;
+    from->nitems = 0;
+    to->item_idx[0] = 0;
+    from->item_idx[0] = 0;
+    AV_QSORT(prob_table, size, PTable, compare_by_prob);
+
+    for (times = 0; times <= max_length; times++) {
+        to->nitems = 0;
+        to->item_idx[0] = 0;
+
+        j = 0;
+        k = 0;
+
+        if (times < max_length) {
+            i = 0;
+        }
+        while (i < size || j + 1 < from->nitems) {
+            to->nitems++;
+            to->item_idx[to->nitems] = to->item_idx[to->nitems - 1];
+            if (i < size &&
+                (j + 1 >= from->nitems ||
+                 prob_table[i].prob <
+                     from->probability[j] + from->probability[j + 1])) {
+                to->items[to->item_idx[to->nitems]++] = prob_table[i].value;
+                to->probability[to->nitems - 1] = prob_table[i].prob;
+                i++;
+            } else {
+                for (k = from->item_idx[j]; k < from->item_idx[j + 2]; k++) {
+                    to->items[to->item_idx[to->nitems]++] = from->items[k];
+                }
+                to->probability[to->nitems - 1] =
+                    from->probability[j] + from->probability[j + 1];
+                j += 2;
+            }
+        }
+        temp = to;
+        to = from;
+        from = temp;
+    }
+
+    min = (size - 1 < from->nitems) ? size - 1 : from->nitems;
+    for (i = 0; i < from->item_idx[min]; i++) {
+        nbits[from->items[i]]++;
+    }
+    // we don't want to return the 256 bit count (it was just in here to prevent
+    // all 1s encoding)
+    j = 0;
+    for (i = 0; i < 256; i++) {
+        if (nbits[i] > 0) {
+            distincts[j].code = i;
+            distincts[j].length = nbits[i];
+            j++;
+        }
+    }
+}
+
+void ff_mjpeg_encode_huffman_init(MJpegEncHuffmanContext *s)
+{
+    memset(s->val_count, 0, sizeof(s->val_count));
+}
+
+/**
+ * Produces a Huffman encoding with a given input
+ *
+ * @param s         input to encode
+ * @param bits      output array where the ith character represents how many input values have i length encoding
+ * @param val       output array of input values sorted by their encoded length
+ * @param max_nval  maximum number of distinct input values
+ */
+void ff_mjpeg_encode_huffman_close(MJpegEncHuffmanContext *s, uint8_t bits[17],
+                                   uint8_t val[], int max_nval)
+{
+    int i, j;
+    int nval = 0;
+    PTable val_counts[257];
+    HuffTable distincts[256];
+
+    for (i = 0; i < 256; i++) {
+        if (s->val_count[i]) nval++;
+    }
+    av_assert0 (nval <= max_nval);
+
+    j = 0;
+    for (i = 0; i < 256; i++) {
+        if (s->val_count[i]) {
+            val_counts[j].value = i;
+            val_counts[j].prob = s->val_count[i];
+            j++;
+        }
+    }
+    val_counts[j].value = 256;
+    val_counts[j].prob = 0;
+    ff_mjpegenc_huffman_compute_bits(val_counts, distincts, nval + 1, 16);
+    AV_QSORT(distincts, nval, HuffTable, compare_by_length);
+
+    memset(bits, 0, sizeof(bits[0]) * 17);
+    for (i = 0; i < nval; i++) {
+        val[i] = distincts[i].code;
+        bits[distincts[i].length]++;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mjpegenc_huffman.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mjpegenc_huffman.h
new file mode 100644
index 000000000..5fe65504e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mjpegenc_huffman.h
@@ -0,0 +1,76 @@
+/*
+ * MJPEG encoder
+ * Copyright (c) 2016 William Ma, Ted Ying, Jerry Jiang
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Huffman table generation for MJPEG encoder.
+ */
+
+#ifndef AVCODEC_MJPEGENC_HUFFMAN_H
+#define AVCODEC_MJPEGENC_HUFFMAN_H
+
+#include <stdint.h>
+
+typedef struct MJpegEncHuffmanContext {
+    int val_count[256];
+} MJpegEncHuffmanContext;
+
+// Uses the package merge algorithm to compute the Huffman table.
+void ff_mjpeg_encode_huffman_init(MJpegEncHuffmanContext *s);
+static inline void ff_mjpeg_encode_huffman_increment(MJpegEncHuffmanContext *s,
+                                                     uint8_t val)
+{
+    s->val_count[val]++;
+}
+void ff_mjpeg_encode_huffman_close(MJpegEncHuffmanContext *s,
+                                   uint8_t bits[17], uint8_t val[],
+                                   int max_nval);
+
+
+/**
+ * Used to assign a occurrence count or "probability" to an input value
+ */
+typedef struct PTable {
+    int value;  ///< input value
+    int prob;   ///< number of occurences of this value in input
+} PTable;
+
+/**
+ * Used to store intermediate lists in the package merge algorithm
+ */
+typedef struct PackageMergerList {
+    int nitems;             ///< number of items in the list and probability      ex. 4
+    int item_idx[515];      ///< index range for each item in items                   0, 2, 5, 9, 13
+    int probability[514];   ///< probability of each item                             3, 8, 18, 46
+    int items[257 * 16];    ///< chain of all individual values that make up items    A, B, A, B, C, A, B, C, D, C, D, D, E
+} PackageMergerList;
+
+/**
+ * Used to store optimal huffman encoding results
+ */
+typedef struct HuffTable {
+    int code;       ///< code is the input value
+    int length;     ///< length of the encoding
+} HuffTable;
+
+void ff_mjpegenc_huffman_compute_bits(PTable *prob_table, HuffTable *distincts,
+                                      int size, int max_length);
+#endif /* AVCODEC_MJPEGENC_HUFFMAN_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/motion_est.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/motion_est.c
new file mode 100644
index 000000000..759eea479
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/motion_est.c
@@ -0,0 +1,1741 @@
+/*
+ * Motion estimation
+ * Copyright (c) 2000,2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer
+ *
+ * new motion estimation (X1/EPZS) by Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Motion estimation.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <limits.h>
+
+#include "avcodec.h"
+#include "internal.h"
+#include "mathops.h"
+#include "motion_est.h"
+#include "mpegutils.h"
+#include "mpegvideo.h"
+
+#define P_LEFT P[1]
+#define P_TOP P[2]
+#define P_TOPRIGHT P[3]
+#define P_MEDIAN P[4]
+#define P_MV1 P[9]
+
+#define ME_MAP_SHIFT 3
+#define ME_MAP_MV_BITS 11
+
+static int sad_hpel_motion_search(MpegEncContext * s,
+                                  int *mx_ptr, int *my_ptr, int dmin,
+                                  int src_index, int ref_index,
+                                  int size, int h);
+
+static inline unsigned update_map_generation(MotionEstContext *c)
+{
+    c->map_generation+= 1<<(ME_MAP_MV_BITS*2);
+    if(c->map_generation==0){
+        c->map_generation= 1<<(ME_MAP_MV_BITS*2);
+        memset(c->map, 0, sizeof(uint32_t)*ME_MAP_SIZE);
+    }
+    return c->map_generation;
+}
+
+/* shape adaptive search stuff */
+typedef struct Minima{
+    int height;
+    int x, y;
+    int checked;
+}Minima;
+
+static int minima_cmp(const void *a, const void *b){
+    const Minima *da = (const Minima *) a;
+    const Minima *db = (const Minima *) b;
+
+    return da->height - db->height;
+}
+
+#define FLAG_QPEL   1 //must be 1
+#define FLAG_CHROMA 2
+#define FLAG_DIRECT 4
+
+static inline void init_ref(MotionEstContext *c, uint8_t *src[3], uint8_t *ref[3], uint8_t *ref2[3], int x, int y, int ref_index){
+    const int offset[3]= {
+          y*c->  stride + x,
+        ((y*c->uvstride + x)>>1),
+        ((y*c->uvstride + x)>>1),
+    };
+    int i;
+    for(i=0; i<3; i++){
+        c->src[0][i]= src [i] + offset[i];
+        c->ref[0][i]= ref [i] + offset[i];
+    }
+    if(ref_index){
+        for(i=0; i<3; i++){
+            c->ref[ref_index][i]= ref2[i] + offset[i];
+        }
+    }
+}
+
+static int get_flags(MotionEstContext *c, int direct, int chroma){
+    return   ((c->avctx->flags&AV_CODEC_FLAG_QPEL) ? FLAG_QPEL : 0)
+           + (direct ? FLAG_DIRECT : 0)
+           + (chroma ? FLAG_CHROMA : 0);
+}
+
+static av_always_inline int cmp_direct_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
+                      const int size, const int h, int ref_index, int src_index,
+                      me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel){
+    MotionEstContext * const c= &s->me;
+    const int stride= c->stride;
+    const int hx= subx + (x<<(1+qpel));
+    const int hy= suby + (y<<(1+qpel));
+    uint8_t * const * const ref= c->ref[ref_index];
+    uint8_t * const * const src= c->src[src_index];
+    int d;
+    //FIXME check chroma 4mv, (no crashes ...)
+        av_assert2(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1));
+        if(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1)){
+            const int time_pp= s->pp_time;
+            const int time_pb= s->pb_time;
+            const int mask= 2*qpel+1;
+            if(s->mv_type==MV_TYPE_8X8){
+                int i;
+                for(i=0; i<4; i++){
+                    int fx = c->direct_basis_mv[i][0] + hx;
+                    int fy = c->direct_basis_mv[i][1] + hy;
+                    int bx = hx ? fx - c->co_located_mv[i][0] : c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(qpel+4));
+                    int by = hy ? fy - c->co_located_mv[i][1] : c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(qpel+4));
+                    int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
+                    int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
+
+                    uint8_t *dst= c->temp + 8*(i&1) + 8*stride*(i>>1);
+                    if(qpel){
+                        c->qpel_put[1][fxy](dst, ref[0] + (fx>>2) + (fy>>2)*stride, stride);
+                        c->qpel_avg[1][bxy](dst, ref[8] + (bx>>2) + (by>>2)*stride, stride);
+                    }else{
+                        c->hpel_put[1][fxy](dst, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 8);
+                        c->hpel_avg[1][bxy](dst, ref[8] + (bx>>1) + (by>>1)*stride, stride, 8);
+                    }
+                }
+            }else{
+                int fx = c->direct_basis_mv[0][0] + hx;
+                int fy = c->direct_basis_mv[0][1] + hy;
+                int bx = hx ? fx - c->co_located_mv[0][0] : (c->co_located_mv[0][0]*(time_pb - time_pp)/time_pp);
+                int by = hy ? fy - c->co_located_mv[0][1] : (c->co_located_mv[0][1]*(time_pb - time_pp)/time_pp);
+                int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
+                int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
+
+                if(qpel){
+                    c->qpel_put[1][fxy](c->temp               , ref[0] + (fx>>2) + (fy>>2)*stride               , stride);
+                    c->qpel_put[1][fxy](c->temp + 8           , ref[0] + (fx>>2) + (fy>>2)*stride + 8           , stride);
+                    c->qpel_put[1][fxy](c->temp     + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride     + 8*stride, stride);
+                    c->qpel_put[1][fxy](c->temp + 8 + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8 + 8*stride, stride);
+                    c->qpel_avg[1][bxy](c->temp               , ref[8] + (bx>>2) + (by>>2)*stride               , stride);
+                    c->qpel_avg[1][bxy](c->temp + 8           , ref[8] + (bx>>2) + (by>>2)*stride + 8           , stride);
+                    c->qpel_avg[1][bxy](c->temp     + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride     + 8*stride, stride);
+                    c->qpel_avg[1][bxy](c->temp + 8 + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8 + 8*stride, stride);
+                }else{
+                    av_assert2((fx>>1) + 16*s->mb_x >= -16);
+                    av_assert2((fy>>1) + 16*s->mb_y >= -16);
+                    av_assert2((fx>>1) + 16*s->mb_x <= s->width);
+                    av_assert2((fy>>1) + 16*s->mb_y <= s->height);
+                    av_assert2((bx>>1) + 16*s->mb_x >= -16);
+                    av_assert2((by>>1) + 16*s->mb_y >= -16);
+                    av_assert2((bx>>1) + 16*s->mb_x <= s->width);
+                    av_assert2((by>>1) + 16*s->mb_y <= s->height);
+
+                    c->hpel_put[0][fxy](c->temp, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 16);
+                    c->hpel_avg[0][bxy](c->temp, ref[8] + (bx>>1) + (by>>1)*stride, stride, 16);
+                }
+            }
+            d = cmp_func(s, c->temp, src[0], stride, 16);
+        }else
+            d= 256*256*256*32;
+    return d;
+}
+
+static av_always_inline int cmp_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
+                      const int size, const int h, int ref_index, int src_index,
+                      me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel, int chroma){
+    MotionEstContext * const c= &s->me;
+    const int stride= c->stride;
+    const int uvstride= c->uvstride;
+    const int dxy= subx + (suby<<(1+qpel)); //FIXME log2_subpel?
+    const int hx= subx + x*(1<<(1+qpel));
+    const int hy= suby + y*(1<<(1+qpel));
+    uint8_t * const * const ref= c->ref[ref_index];
+    uint8_t * const * const src= c->src[src_index];
+    int d;
+    //FIXME check chroma 4mv, (no crashes ...)
+        int uvdxy;              /* no, it might not be used uninitialized */
+        if(dxy){
+            if(qpel){
+                if (h << size == 16) {
+                    c->qpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride); //FIXME prototype (add h)
+                } else if (size == 0 && h == 8) {
+                    c->qpel_put[1][dxy](c->temp    , ref[0] + x + y*stride    , stride);
+                    c->qpel_put[1][dxy](c->temp + 8, ref[0] + x + y*stride + 8, stride);
+                } else
+                    av_assert2(0);
+                if(chroma){
+                    int cx= hx/2;
+                    int cy= hy/2;
+                    cx= (cx>>1)|(cx&1);
+                    cy= (cy>>1)|(cy&1);
+                    uvdxy= (cx&1) + 2*(cy&1);
+                    // FIXME x/y wrong, but MPEG-4 qpel is sick anyway, we should drop as much of it as possible in favor for H.264
+                }
+            }else{
+                c->hpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride, h);
+                if(chroma)
+                    uvdxy= dxy | (x&1) | (2*(y&1));
+            }
+            d = cmp_func(s, c->temp, src[0], stride, h);
+        }else{
+            d = cmp_func(s, src[0], ref[0] + x + y*stride, stride, h);
+            if(chroma)
+                uvdxy= (x&1) + 2*(y&1);
+        }
+        if(chroma){
+            uint8_t * const uvtemp= c->temp + 16*stride;
+            c->hpel_put[size+1][uvdxy](uvtemp  , ref[1] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
+            c->hpel_put[size+1][uvdxy](uvtemp+8, ref[2] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
+            d += chroma_cmp_func(s, uvtemp  , src[1], uvstride, h>>1);
+            d += chroma_cmp_func(s, uvtemp+8, src[2], uvstride, h>>1);
+        }
+    return d;
+}
+
+static int cmp_simple(MpegEncContext *s, const int x, const int y,
+                      int ref_index, int src_index,
+                      me_cmp_func cmp_func, me_cmp_func chroma_cmp_func){
+    return cmp_inline(s,x,y,0,0,0,16,ref_index,src_index, cmp_func, chroma_cmp_func, 0, 0);
+}
+
+static int cmp_fpel_internal(MpegEncContext *s, const int x, const int y,
+                      const int size, const int h, int ref_index, int src_index,
+                      me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
+    if(flags&FLAG_DIRECT){
+        return cmp_direct_inline(s,x,y,0,0,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL);
+    }else{
+        return cmp_inline(s,x,y,0,0,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0, flags&FLAG_CHROMA);
+    }
+}
+
+static int cmp_internal(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
+                      const int size, const int h, int ref_index, int src_index,
+                      me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
+    if(flags&FLAG_DIRECT){
+        return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL);
+    }else{
+        return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL, flags&FLAG_CHROMA);
+    }
+}
+
+/** @brief compares a block (either a full macroblock or a partition thereof)
+    against a proposed motion-compensated prediction of that block
+ */
+static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
+                      const int size, const int h, int ref_index, int src_index,
+                      me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
+    if(av_builtin_constant_p(flags) && av_builtin_constant_p(h) && av_builtin_constant_p(size)
+       && av_builtin_constant_p(subx) && av_builtin_constant_p(suby)
+       && flags==0 && h==16 && size==0 && subx==0 && suby==0){
+        return cmp_simple(s,x,y,ref_index,src_index, cmp_func, chroma_cmp_func);
+    }else if(av_builtin_constant_p(subx) && av_builtin_constant_p(suby)
+       && subx==0 && suby==0){
+        return cmp_fpel_internal(s,x,y,size,h,ref_index,src_index, cmp_func, chroma_cmp_func,flags);
+    }else{
+        return cmp_internal(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags);
+    }
+}
+
+static int cmp_hpel(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
+                      const int size, const int h, int ref_index, int src_index,
+                      me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
+    if(flags&FLAG_DIRECT){
+        return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0);
+    }else{
+        return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0, flags&FLAG_CHROMA);
+    }
+}
+
+static int cmp_qpel(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
+                      const int size, const int h, int ref_index, int src_index,
+                      me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
+    if(flags&FLAG_DIRECT){
+        return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 1);
+    }else{
+        return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 1, flags&FLAG_CHROMA);
+    }
+}
+
+#include "motion_est_template.c"
+
+static int zero_cmp(MpegEncContext *s, uint8_t *a, uint8_t *b,
+                    ptrdiff_t stride, int h)
+{
+    return 0;
+}
+
+static void zero_hpel(uint8_t *a, const uint8_t *b, ptrdiff_t stride, int h){
+}
+
+int ff_init_me(MpegEncContext *s){
+    MotionEstContext * const c= &s->me;
+    int cache_size= FFMIN(ME_MAP_SIZE>>ME_MAP_SHIFT, 1<<ME_MAP_SHIFT);
+    int dia_size= FFMAX(FFABS(s->avctx->dia_size)&255, FFABS(s->avctx->pre_dia_size)&255);
+
+    if(FFMIN(s->avctx->dia_size, s->avctx->pre_dia_size) < -FFMIN(ME_MAP_SIZE, MAX_SAB_SIZE)){
+        av_log(s->avctx, AV_LOG_ERROR, "ME_MAP size is too small for SAB diamond\n");
+        return -1;
+    }
+
+    c->avctx= s->avctx;
+
+    if(s->codec_id == AV_CODEC_ID_H261)
+        c->avctx->me_sub_cmp = c->avctx->me_cmp;
+
+    if(cache_size < 2*dia_size && !c->stride){
+        av_log(s->avctx, AV_LOG_INFO, "ME_MAP size may be a little small for the selected diamond size\n");
+    }
+
+    ff_set_cmp(&s->mecc, s->mecc.me_pre_cmp, c->avctx->me_pre_cmp);
+    ff_set_cmp(&s->mecc, s->mecc.me_cmp,     c->avctx->me_cmp);
+    ff_set_cmp(&s->mecc, s->mecc.me_sub_cmp, c->avctx->me_sub_cmp);
+    ff_set_cmp(&s->mecc, s->mecc.mb_cmp,     c->avctx->mb_cmp);
+
+    c->flags    = get_flags(c, 0, c->avctx->me_cmp    &FF_CMP_CHROMA);
+    c->sub_flags= get_flags(c, 0, c->avctx->me_sub_cmp&FF_CMP_CHROMA);
+    c->mb_flags = get_flags(c, 0, c->avctx->mb_cmp    &FF_CMP_CHROMA);
+
+/*FIXME s->no_rounding b_type*/
+    if (s->avctx->flags & AV_CODEC_FLAG_QPEL) {
+        c->sub_motion_search= qpel_motion_search;
+        c->qpel_avg = s->qdsp.avg_qpel_pixels_tab;
+        if (s->no_rounding)
+            c->qpel_put = s->qdsp.put_no_rnd_qpel_pixels_tab;
+        else
+            c->qpel_put = s->qdsp.put_qpel_pixels_tab;
+    }else{
+        if(c->avctx->me_sub_cmp&FF_CMP_CHROMA)
+            c->sub_motion_search= hpel_motion_search;
+        else if(   c->avctx->me_sub_cmp == FF_CMP_SAD
+                && c->avctx->    me_cmp == FF_CMP_SAD
+                && c->avctx->    mb_cmp == FF_CMP_SAD)
+            c->sub_motion_search= sad_hpel_motion_search; // 2050 vs. 2450 cycles
+        else
+            c->sub_motion_search= hpel_motion_search;
+    }
+    c->hpel_avg = s->hdsp.avg_pixels_tab;
+    if (s->no_rounding)
+        c->hpel_put = s->hdsp.put_no_rnd_pixels_tab;
+    else
+        c->hpel_put = s->hdsp.put_pixels_tab;
+
+    if(s->linesize){
+        c->stride  = s->linesize;
+        c->uvstride= s->uvlinesize;
+    }else{
+        c->stride  = 16*s->mb_width + 32;
+        c->uvstride=  8*s->mb_width + 16;
+    }
+
+    /* 8x8 fullpel search would need a 4x4 chroma compare, which we do
+     * not have yet, and even if we had, the motion estimation code
+     * does not expect it. */
+    if (s->codec_id != AV_CODEC_ID_SNOW) {
+        if ((c->avctx->me_cmp & FF_CMP_CHROMA) /* && !s->mecc.me_cmp[2] */)
+            s->mecc.me_cmp[2] = zero_cmp;
+        if ((c->avctx->me_sub_cmp & FF_CMP_CHROMA) && !s->mecc.me_sub_cmp[2])
+            s->mecc.me_sub_cmp[2] = zero_cmp;
+        c->hpel_put[2][0]= c->hpel_put[2][1]=
+        c->hpel_put[2][2]= c->hpel_put[2][3]= zero_hpel;
+    }
+
+    if(s->codec_id == AV_CODEC_ID_H261){
+        c->sub_motion_search= no_sub_motion_search;
+    }
+
+    return 0;
+}
+
+#define CHECK_SAD_HALF_MV(suffix, x, y) \
+{\
+    d  = s->mecc.pix_abs[size][(x ? 1 : 0) + (y ? 2 : 0)](NULL, pix, ptr + ((x) >> 1), stride, h); \
+    d += (mv_penalty[pen_x + x] + mv_penalty[pen_y + y])*penalty_factor;\
+    COPY3_IF_LT(dminh, d, dx, x, dy, y)\
+}
+
+static int sad_hpel_motion_search(MpegEncContext * s,
+                                  int *mx_ptr, int *my_ptr, int dmin,
+                                  int src_index, int ref_index,
+                                  int size, int h)
+{
+    MotionEstContext * const c= &s->me;
+    const int penalty_factor= c->sub_penalty_factor;
+    int mx, my, dminh;
+    uint8_t *pix, *ptr;
+    int stride= c->stride;
+    LOAD_COMMON
+
+    av_assert2(c->sub_flags == 0);
+
+    if(c->skip){
+        *mx_ptr = 0;
+        *my_ptr = 0;
+        return dmin;
+    }
+
+    pix = c->src[src_index][0];
+
+    mx = *mx_ptr;
+    my = *my_ptr;
+    ptr = c->ref[ref_index][0] + (my * stride) + mx;
+
+    dminh = dmin;
+
+    if (mx > xmin && mx < xmax &&
+        my > ymin && my < ymax) {
+        int dx=0, dy=0;
+        int d, pen_x, pen_y;
+        const int index= my*(1<<ME_MAP_SHIFT) + mx;
+        const int t= score_map[(index-(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];
+        const int l= score_map[(index- 1               )&(ME_MAP_SIZE-1)];
+        const int r= score_map[(index+ 1               )&(ME_MAP_SIZE-1)];
+        const int b= score_map[(index+(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];
+        mx += mx;
+        my += my;
+
+
+        pen_x= pred_x + mx;
+        pen_y= pred_y + my;
+
+        ptr-= stride;
+        if(t<=b){
+            CHECK_SAD_HALF_MV(y2 , 0, -1)
+            if(l<=r){
+                CHECK_SAD_HALF_MV(xy2, -1, -1)
+                if(t+r<=b+l){
+                    CHECK_SAD_HALF_MV(xy2, +1, -1)
+                    ptr+= stride;
+                }else{
+                    ptr+= stride;
+                    CHECK_SAD_HALF_MV(xy2, -1, +1)
+                }
+                CHECK_SAD_HALF_MV(x2 , -1,  0)
+            }else{
+                CHECK_SAD_HALF_MV(xy2, +1, -1)
+                if(t+l<=b+r){
+                    CHECK_SAD_HALF_MV(xy2, -1, -1)
+                    ptr+= stride;
+                }else{
+                    ptr+= stride;
+                    CHECK_SAD_HALF_MV(xy2, +1, +1)
+                }
+                CHECK_SAD_HALF_MV(x2 , +1,  0)
+            }
+        }else{
+            if(l<=r){
+                if(t+l<=b+r){
+                    CHECK_SAD_HALF_MV(xy2, -1, -1)
+                    ptr+= stride;
+                }else{
+                    ptr+= stride;
+                    CHECK_SAD_HALF_MV(xy2, +1, +1)
+                }
+                CHECK_SAD_HALF_MV(x2 , -1,  0)
+                CHECK_SAD_HALF_MV(xy2, -1, +1)
+            }else{
+                if(t+r<=b+l){
+                    CHECK_SAD_HALF_MV(xy2, +1, -1)
+                    ptr+= stride;
+                }else{
+                    ptr+= stride;
+                    CHECK_SAD_HALF_MV(xy2, -1, +1)
+                }
+                CHECK_SAD_HALF_MV(x2 , +1,  0)
+                CHECK_SAD_HALF_MV(xy2, +1, +1)
+            }
+            CHECK_SAD_HALF_MV(y2 ,  0, +1)
+        }
+        mx+=dx;
+        my+=dy;
+
+    }else{
+        mx += mx;
+        my += my;
+    }
+
+    *mx_ptr = mx;
+    *my_ptr = my;
+    return dminh;
+}
+
+static inline void set_p_mv_tables(MpegEncContext * s, int mx, int my, int mv4)
+{
+    const int xy= s->mb_x + s->mb_y*s->mb_stride;
+
+    s->p_mv_table[xy][0] = mx;
+    s->p_mv_table[xy][1] = my;
+
+    /* has already been set to the 4 MV if 4MV is done */
+    if(mv4){
+        int mot_xy= s->block_index[0];
+
+        s->current_picture.motion_val[0][mot_xy    ][0] = mx;
+        s->current_picture.motion_val[0][mot_xy    ][1] = my;
+        s->current_picture.motion_val[0][mot_xy + 1][0] = mx;
+        s->current_picture.motion_val[0][mot_xy + 1][1] = my;
+
+        mot_xy += s->b8_stride;
+        s->current_picture.motion_val[0][mot_xy    ][0] = mx;
+        s->current_picture.motion_val[0][mot_xy    ][1] = my;
+        s->current_picture.motion_val[0][mot_xy + 1][0] = mx;
+        s->current_picture.motion_val[0][mot_xy + 1][1] = my;
+    }
+}
+
+/**
+ * get fullpel ME search limits.
+ */
+static inline void get_limits(MpegEncContext *s, int x, int y)
+{
+    MotionEstContext * const c= &s->me;
+    int range= c->avctx->me_range >> (1 + !!(c->flags&FLAG_QPEL));
+    int max_range = MAX_MV >> (1 + !!(c->flags&FLAG_QPEL));
+/*
+    if(c->avctx->me_range) c->range= c->avctx->me_range >> 1;
+    else                   c->range= 16;
+*/
+    if (s->unrestricted_mv) {
+        c->xmin = - x - 16;
+        c->ymin = - y - 16;
+        c->xmax = - x + s->width;
+        c->ymax = - y + s->height;
+    } else if (s->out_format == FMT_H261){
+        // Search range of H.261 is different from other codec standards
+        c->xmin = (x > 15) ? - 15 : 0;
+        c->ymin = (y > 15) ? - 15 : 0;
+        c->xmax = (x < s->mb_width * 16 - 16) ? 15 : 0;
+        c->ymax = (y < s->mb_height * 16 - 16) ? 15 : 0;
+    } else {
+        c->xmin = - x;
+        c->ymin = - y;
+        c->xmax = - x + s->mb_width *16 - 16;
+        c->ymax = - y + s->mb_height*16 - 16;
+    }
+    if(!range || range > max_range)
+        range = max_range;
+    if(range){
+        c->xmin = FFMAX(c->xmin,-range);
+        c->xmax = FFMIN(c->xmax, range);
+        c->ymin = FFMAX(c->ymin,-range);
+        c->ymax = FFMIN(c->ymax, range);
+    }
+}
+
+static inline void init_mv4_ref(MotionEstContext *c){
+    const int stride= c->stride;
+
+    c->ref[1][0] = c->ref[0][0] + 8;
+    c->ref[2][0] = c->ref[0][0] + 8*stride;
+    c->ref[3][0] = c->ref[2][0] + 8;
+    c->src[1][0] = c->src[0][0] + 8;
+    c->src[2][0] = c->src[0][0] + 8*stride;
+    c->src[3][0] = c->src[2][0] + 8;
+}
+
+static inline int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)
+{
+    MotionEstContext * const c= &s->me;
+    const int size= 1;
+    const int h=8;
+    int block;
+    int P[10][2];
+    int dmin_sum=0, mx4_sum=0, my4_sum=0, i;
+    int same=1;
+    const int stride= c->stride;
+    uint8_t *mv_penalty= c->current_mv_penalty;
+    int safety_clipping= s->unrestricted_mv && (s->width&15) && (s->height&15);
+
+    init_mv4_ref(c);
+
+    for(block=0; block<4; block++){
+        int mx4, my4;
+        int pred_x4, pred_y4;
+        int dmin4;
+        static const int off[4]= {2, 1, 1, -1};
+        const int mot_stride = s->b8_stride;
+        const int mot_xy = s->block_index[block];
+
+        if(safety_clipping){
+            c->xmax = - 16*s->mb_x + s->width  - 8*(block &1);
+            c->ymax = - 16*s->mb_y + s->height - 8*(block>>1);
+        }
+
+        P_LEFT[0] = s->current_picture.motion_val[0][mot_xy - 1][0];
+        P_LEFT[1] = s->current_picture.motion_val[0][mot_xy - 1][1];
+
+        if(P_LEFT[0]       > (c->xmax<<shift)) P_LEFT[0]       = (c->xmax<<shift);
+
+        /* special case for first line */
+        if (s->first_slice_line && block<2) {
+            c->pred_x= pred_x4= P_LEFT[0];
+            c->pred_y= pred_y4= P_LEFT[1];
+        } else {
+            P_TOP[0]      = s->current_picture.motion_val[0][mot_xy - mot_stride             ][0];
+            P_TOP[1]      = s->current_picture.motion_val[0][mot_xy - mot_stride             ][1];
+            P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][0];
+            P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][1];
+            if(P_TOP[1]      > (c->ymax<<shift)) P_TOP[1]     = (c->ymax<<shift);
+            if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
+            if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift);
+            if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
+
+            P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
+            P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
+
+            c->pred_x= pred_x4 = P_MEDIAN[0];
+            c->pred_y= pred_y4 = P_MEDIAN[1];
+        }
+        P_MV1[0]= mx;
+        P_MV1[1]= my;
+        if(safety_clipping)
+            for(i=1; i<10; i++){
+                if (s->first_slice_line && block<2 && i>1 && i<9)
+                    continue;
+                if (i>4 && i<9)
+                    continue;
+                if(P[i][0] > (c->xmax<<shift)) P[i][0]= (c->xmax<<shift);
+                if(P[i][1] > (c->ymax<<shift)) P[i][1]= (c->ymax<<shift);
+            }
+
+        dmin4 = epzs_motion_search2(s, &mx4, &my4, P, block, block, s->p_mv_table, (1<<16)>>shift, 1);
+
+        dmin4= c->sub_motion_search(s, &mx4, &my4, dmin4, block, block, size, h);
+
+        if (s->mecc.me_sub_cmp[0] != s->mecc.mb_cmp[0]) {
+            int dxy;
+            const int offset= ((block&1) + (block>>1)*stride)*8;
+            uint8_t *dest_y = c->scratchpad + offset;
+            if(s->quarter_sample){
+                uint8_t *ref= c->ref[block][0] + (mx4>>2) + (my4>>2)*stride;
+                dxy = ((my4 & 3) << 2) | (mx4 & 3);
+
+                if(s->no_rounding)
+                    s->qdsp.put_no_rnd_qpel_pixels_tab[1][dxy](dest_y, ref, stride);
+                else
+                    s->qdsp.put_qpel_pixels_tab[1][dxy](dest_y, ref, stride);
+            }else{
+                uint8_t *ref= c->ref[block][0] + (mx4>>1) + (my4>>1)*stride;
+                dxy = ((my4 & 1) << 1) | (mx4 & 1);
+
+                if(s->no_rounding)
+                    s->hdsp.put_no_rnd_pixels_tab[1][dxy](dest_y    , ref    , stride, h);
+                else
+                    s->hdsp.put_pixels_tab       [1][dxy](dest_y    , ref    , stride, h);
+            }
+            dmin_sum+= (mv_penalty[mx4-pred_x4] + mv_penalty[my4-pred_y4])*c->mb_penalty_factor;
+        }else
+            dmin_sum+= dmin4;
+
+        if(s->quarter_sample){
+            mx4_sum+= mx4/2;
+            my4_sum+= my4/2;
+        }else{
+            mx4_sum+= mx4;
+            my4_sum+= my4;
+        }
+
+        s->current_picture.motion_val[0][s->block_index[block]][0] = mx4;
+        s->current_picture.motion_val[0][s->block_index[block]][1] = my4;
+
+        if(mx4 != mx || my4 != my) same=0;
+    }
+
+    if(same)
+        return INT_MAX;
+
+    if (s->mecc.me_sub_cmp[0] != s->mecc.mb_cmp[0]) {
+        dmin_sum += s->mecc.mb_cmp[0](s,
+                                      s->new_picture.f->data[0] +
+                                      s->mb_x * 16 + s->mb_y * 16 * stride,
+                                      c->scratchpad, stride, 16);
+    }
+
+    if(c->avctx->mb_cmp&FF_CMP_CHROMA){
+        int dxy;
+        int mx, my;
+        int offset;
+
+        mx= ff_h263_round_chroma(mx4_sum);
+        my= ff_h263_round_chroma(my4_sum);
+        dxy = ((my & 1) << 1) | (mx & 1);
+
+        offset= (s->mb_x*8 + (mx>>1)) + (s->mb_y*8 + (my>>1))*s->uvlinesize;
+
+        if(s->no_rounding){
+            s->hdsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad    , s->last_picture.f->data[1] + offset, s->uvlinesize, 8);
+            s->hdsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad + 8, s->last_picture.f->data[2] + offset, s->uvlinesize, 8);
+        }else{
+            s->hdsp.put_pixels_tab       [1][dxy](c->scratchpad    , s->last_picture.f->data[1] + offset, s->uvlinesize, 8);
+            s->hdsp.put_pixels_tab       [1][dxy](c->scratchpad + 8, s->last_picture.f->data[2] + offset, s->uvlinesize, 8);
+        }
+
+        dmin_sum += s->mecc.mb_cmp[1](s, s->new_picture.f->data[1] + s->mb_x * 8 + s->mb_y * 8 * s->uvlinesize, c->scratchpad,     s->uvlinesize, 8);
+        dmin_sum += s->mecc.mb_cmp[1](s, s->new_picture.f->data[2] + s->mb_x * 8 + s->mb_y * 8 * s->uvlinesize, c->scratchpad + 8, s->uvlinesize, 8);
+    }
+
+    c->pred_x= mx;
+    c->pred_y= my;
+
+    switch(c->avctx->mb_cmp&0xFF){
+    /*case FF_CMP_SSE:
+        return dmin_sum+ 32*s->qscale*s->qscale;*/
+    case FF_CMP_RD:
+        return dmin_sum;
+    default:
+        return dmin_sum+ 11*c->mb_penalty_factor;
+    }
+}
+
+static inline void init_interlaced_ref(MpegEncContext *s, int ref_index){
+    MotionEstContext * const c= &s->me;
+
+    c->ref[1+ref_index][0] = c->ref[0+ref_index][0] + s->linesize;
+    c->src[1][0] = c->src[0][0] + s->linesize;
+    if(c->flags & FLAG_CHROMA){
+        c->ref[1+ref_index][1] = c->ref[0+ref_index][1] + s->uvlinesize;
+        c->ref[1+ref_index][2] = c->ref[0+ref_index][2] + s->uvlinesize;
+        c->src[1][1] = c->src[0][1] + s->uvlinesize;
+        c->src[1][2] = c->src[0][2] + s->uvlinesize;
+    }
+}
+
+static int interlaced_search(MpegEncContext *s, int ref_index,
+                             int16_t (*mv_tables[2][2])[2], uint8_t *field_select_tables[2], int mx, int my, int user_field_select)
+{
+    MotionEstContext * const c= &s->me;
+    const int size=0;
+    const int h=8;
+    int block;
+    int P[10][2];
+    uint8_t * const mv_penalty= c->current_mv_penalty;
+    int same=1;
+    const int stride= 2*s->linesize;
+    int dmin_sum= 0;
+    const int mot_stride= s->mb_stride;
+    const int xy= s->mb_x + s->mb_y*mot_stride;
+
+    c->ymin>>=1;
+    c->ymax>>=1;
+    c->stride<<=1;
+    c->uvstride<<=1;
+    init_interlaced_ref(s, ref_index);
+
+    for(block=0; block<2; block++){
+        int field_select;
+        int best_dmin= INT_MAX;
+        int best_field= -1;
+
+        for(field_select=0; field_select<2; field_select++){
+            int dmin, mx_i, my_i;
+            int16_t (*mv_table)[2]= mv_tables[block][field_select];
+
+            if(user_field_select){
+                av_assert1(field_select==0 || field_select==1);
+                av_assert1(field_select_tables[block][xy]==0 || field_select_tables[block][xy]==1);
+                if(field_select_tables[block][xy] != field_select)
+                    continue;
+            }
+
+            P_LEFT[0] = mv_table[xy - 1][0];
+            P_LEFT[1] = mv_table[xy - 1][1];
+            if(P_LEFT[0]       > (c->xmax<<1)) P_LEFT[0]       = (c->xmax<<1);
+
+            c->pred_x= P_LEFT[0];
+            c->pred_y= P_LEFT[1];
+
+            if(!s->first_slice_line){
+                P_TOP[0]      = mv_table[xy - mot_stride][0];
+                P_TOP[1]      = mv_table[xy - mot_stride][1];
+                P_TOPRIGHT[0] = mv_table[xy - mot_stride + 1][0];
+                P_TOPRIGHT[1] = mv_table[xy - mot_stride + 1][1];
+                if(P_TOP[1]      > (c->ymax<<1)) P_TOP[1]     = (c->ymax<<1);
+                if(P_TOPRIGHT[0] < (c->xmin<<1)) P_TOPRIGHT[0]= (c->xmin<<1);
+                if(P_TOPRIGHT[0] > (c->xmax<<1)) P_TOPRIGHT[0]= (c->xmax<<1);
+                if(P_TOPRIGHT[1] > (c->ymax<<1)) P_TOPRIGHT[1]= (c->ymax<<1);
+
+                P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
+                P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
+            }
+            P_MV1[0]= mx; //FIXME not correct if block != field_select
+            P_MV1[1]= my / 2;
+
+            dmin = epzs_motion_search2(s, &mx_i, &my_i, P, block, field_select+ref_index, mv_table, (1<<16)>>1, 0);
+
+            dmin= c->sub_motion_search(s, &mx_i, &my_i, dmin, block, field_select+ref_index, size, h);
+
+            mv_table[xy][0]= mx_i;
+            mv_table[xy][1]= my_i;
+
+            if (s->mecc.me_sub_cmp[0] != s->mecc.mb_cmp[0]) {
+                int dxy;
+
+                //FIXME chroma ME
+                uint8_t *ref= c->ref[field_select+ref_index][0] + (mx_i>>1) + (my_i>>1)*stride;
+                dxy = ((my_i & 1) << 1) | (mx_i & 1);
+
+                if(s->no_rounding){
+                    s->hdsp.put_no_rnd_pixels_tab[size][dxy](c->scratchpad, ref    , stride, h);
+                }else{
+                    s->hdsp.put_pixels_tab       [size][dxy](c->scratchpad, ref    , stride, h);
+                }
+                dmin = s->mecc.mb_cmp[size](s, c->src[block][0], c->scratchpad, stride, h);
+                dmin+= (mv_penalty[mx_i-c->pred_x] + mv_penalty[my_i-c->pred_y] + 1)*c->mb_penalty_factor;
+            }else
+                dmin+= c->mb_penalty_factor; //field_select bits
+
+            dmin += field_select != block; //slightly prefer same field
+
+            if(dmin < best_dmin){
+                best_dmin= dmin;
+                best_field= field_select;
+            }
+        }
+        {
+            int16_t (*mv_table)[2]= mv_tables[block][best_field];
+
+            if(mv_table[xy][0] != mx) same=0; //FIXME check if these checks work and are any good at all
+            if(mv_table[xy][1]&1) same=0;
+            if(mv_table[xy][1]*2 != my) same=0;
+            if(best_field != block) same=0;
+        }
+
+        field_select_tables[block][xy]= best_field;
+        dmin_sum += best_dmin;
+    }
+
+    c->ymin<<=1;
+    c->ymax<<=1;
+    c->stride>>=1;
+    c->uvstride>>=1;
+
+    if(same)
+        return INT_MAX;
+
+    switch(c->avctx->mb_cmp&0xFF){
+    /*case FF_CMP_SSE:
+        return dmin_sum+ 32*s->qscale*s->qscale;*/
+    case FF_CMP_RD:
+        return dmin_sum;
+    default:
+        return dmin_sum+ 11*c->mb_penalty_factor;
+    }
+}
+
+static inline int get_penalty_factor(int lambda, int lambda2, int type){
+    switch(type&0xFF){
+    default:
+    case FF_CMP_SAD:
+        return lambda>>FF_LAMBDA_SHIFT;
+    case FF_CMP_DCT:
+        return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
+    case FF_CMP_W53:
+        return (4*lambda)>>(FF_LAMBDA_SHIFT);
+    case FF_CMP_W97:
+        return (2*lambda)>>(FF_LAMBDA_SHIFT);
+    case FF_CMP_SATD:
+    case FF_CMP_DCT264:
+        return (2*lambda)>>FF_LAMBDA_SHIFT;
+    case FF_CMP_RD:
+    case FF_CMP_PSNR:
+    case FF_CMP_SSE:
+    case FF_CMP_NSSE:
+        return lambda2>>FF_LAMBDA_SHIFT;
+    case FF_CMP_BIT:
+    case FF_CMP_MEDIAN_SAD:
+        return 1;
+    }
+}
+
+void ff_estimate_p_frame_motion(MpegEncContext * s,
+                                int mb_x, int mb_y)
+{
+    MotionEstContext * const c= &s->me;
+    uint8_t *pix, *ppix;
+    int sum, mx = 0, my = 0, dmin = 0;
+    int varc;            ///< the variance of the block (sum of squared (p[y][x]-average))
+    int vard;            ///< sum of squared differences with the estimated motion vector
+    int P[10][2];
+    const int shift= 1+s->quarter_sample;
+    int mb_type=0;
+    Picture * const pic= &s->current_picture;
+
+    init_ref(c, s->new_picture.f->data, s->last_picture.f->data, NULL, 16*mb_x, 16*mb_y, 0);
+
+    av_assert0(s->quarter_sample==0 || s->quarter_sample==1);
+    av_assert0(s->linesize == c->stride);
+    av_assert0(s->uvlinesize == c->uvstride);
+
+    c->penalty_factor    = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
+    c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
+    c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
+    c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_DMV;
+
+    get_limits(s, 16*mb_x, 16*mb_y);
+    c->skip=0;
+
+    /* intra / predictive decision */
+    pix = c->src[0][0];
+    sum  = s->mpvencdsp.pix_sum(pix, s->linesize);
+    varc = s->mpvencdsp.pix_norm1(pix, s->linesize) -
+           (((unsigned) sum * sum) >> 8) + 500;
+
+    pic->mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
+    pic->mb_var [s->mb_stride * mb_y + mb_x] = (varc+128)>>8;
+    c->mb_var_sum_temp += (varc+128)>>8;
+
+    if (s->motion_est != FF_ME_ZERO) {
+        const int mot_stride = s->b8_stride;
+        const int mot_xy = s->block_index[0];
+
+        P_LEFT[0] = s->current_picture.motion_val[0][mot_xy - 1][0];
+        P_LEFT[1] = s->current_picture.motion_val[0][mot_xy - 1][1];
+
+        if (P_LEFT[0] > (c->xmax << shift))
+            P_LEFT[0] =  c->xmax << shift;
+
+        if (!s->first_slice_line) {
+            P_TOP[0]      = s->current_picture.motion_val[0][mot_xy - mot_stride    ][0];
+            P_TOP[1]      = s->current_picture.motion_val[0][mot_xy - mot_stride    ][1];
+            P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][0];
+            P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][1];
+            if (P_TOP[1] > (c->ymax << shift))
+                P_TOP[1] =  c->ymax << shift;
+            if (P_TOPRIGHT[0] < (c->xmin * (1 << shift)))
+                P_TOPRIGHT[0] =  c->xmin * (1 << shift);
+            if (P_TOPRIGHT[1] > (c->ymax * (1 << shift)))
+                P_TOPRIGHT[1] =  c->ymax * (1 << shift);
+
+            P_MEDIAN[0] = mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
+            P_MEDIAN[1] = mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
+
+            if (s->out_format == FMT_H263) {
+                c->pred_x = P_MEDIAN[0];
+                c->pred_y = P_MEDIAN[1];
+            } else { /* MPEG-1 at least */
+                c->pred_x = P_LEFT[0];
+                c->pred_y = P_LEFT[1];
+            }
+        } else {
+            c->pred_x = P_LEFT[0];
+            c->pred_y = P_LEFT[1];
+        }
+        dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);
+    }
+
+    /* At this point (mx,my) are full-pell and the relative displacement */
+    ppix = c->ref[0][0] + (my * s->linesize) + mx;
+
+    vard = s->mecc.sse[0](NULL, pix, ppix, s->linesize, 16);
+
+    pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;
+    c->mc_mb_var_sum_temp += (vard+128)>>8;
+
+    if (c->avctx->mb_decision > FF_MB_DECISION_SIMPLE) {
+        int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
+        int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
+        c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
+
+        if (vard*2 + 200*256 > varc)
+            mb_type|= CANDIDATE_MB_TYPE_INTRA;
+        if (varc*2 + 200*256 > vard || s->qscale > 24){
+//        if (varc*2 + 200*256 + 50*(s->lambda2>>FF_LAMBDA_SHIFT) > vard){
+            mb_type|= CANDIDATE_MB_TYPE_INTER;
+            c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
+            if (s->mpv_flags & FF_MPV_FLAG_MV0)
+                if(mx || my)
+                    mb_type |= CANDIDATE_MB_TYPE_SKIPPED; //FIXME check difference
+        }else{
+            mx <<=shift;
+            my <<=shift;
+        }
+        if ((s->avctx->flags & AV_CODEC_FLAG_4MV)
+           && !c->skip && varc>50<<8 && vard>10<<8){
+            if(h263_mv4_search(s, mx, my, shift) < INT_MAX)
+                mb_type|=CANDIDATE_MB_TYPE_INTER4V;
+
+            set_p_mv_tables(s, mx, my, 0);
+        }else
+            set_p_mv_tables(s, mx, my, 1);
+        if ((s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)
+           && !c->skip){ //FIXME varc/d checks
+            if(interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0) < INT_MAX)
+                mb_type |= CANDIDATE_MB_TYPE_INTER_I;
+        }
+    }else{
+        int intra_score, i;
+        mb_type= CANDIDATE_MB_TYPE_INTER;
+
+        dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
+        if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
+            dmin= get_mb_score(s, mx, my, 0, 0, 0, 16, 1);
+
+        if ((s->avctx->flags & AV_CODEC_FLAG_4MV)
+           && !c->skip && varc>50<<8 && vard>10<<8){
+            int dmin4= h263_mv4_search(s, mx, my, shift);
+            if(dmin4 < dmin){
+                mb_type= CANDIDATE_MB_TYPE_INTER4V;
+                dmin=dmin4;
+            }
+        }
+        if ((s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)
+           && !c->skip){ //FIXME varc/d checks
+            int dmin_i= interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0);
+            if(dmin_i < dmin){
+                mb_type = CANDIDATE_MB_TYPE_INTER_I;
+                dmin= dmin_i;
+            }
+        }
+
+        set_p_mv_tables(s, mx, my, mb_type!=CANDIDATE_MB_TYPE_INTER4V);
+
+        /* get intra luma score */
+        if((c->avctx->mb_cmp&0xFF)==FF_CMP_SSE){
+            intra_score= varc - 500;
+        }else{
+            unsigned mean = (sum+128)>>8;
+            mean*= 0x01010101;
+
+            for(i=0; i<16; i++){
+                *(uint32_t*)(&c->scratchpad[i*s->linesize+ 0]) = mean;
+                *(uint32_t*)(&c->scratchpad[i*s->linesize+ 4]) = mean;
+                *(uint32_t*)(&c->scratchpad[i*s->linesize+ 8]) = mean;
+                *(uint32_t*)(&c->scratchpad[i*s->linesize+12]) = mean;
+            }
+
+            intra_score= s->mecc.mb_cmp[0](s, c->scratchpad, pix, s->linesize, 16);
+        }
+        intra_score += c->mb_penalty_factor*16;
+
+        if(intra_score < dmin){
+            mb_type= CANDIDATE_MB_TYPE_INTRA;
+            s->current_picture.mb_type[mb_y*s->mb_stride + mb_x] = CANDIDATE_MB_TYPE_INTRA; //FIXME cleanup
+        }else
+            s->current_picture.mb_type[mb_y*s->mb_stride + mb_x] = 0;
+
+        {
+            int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
+            int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
+            c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
+        }
+    }
+
+    s->mb_type[mb_y*s->mb_stride + mb_x]= mb_type;
+}
+
+int ff_pre_estimate_p_frame_motion(MpegEncContext * s,
+                                    int mb_x, int mb_y)
+{
+    MotionEstContext * const c= &s->me;
+    int mx, my, dmin;
+    int P[10][2];
+    const int shift= 1+s->quarter_sample;
+    const int xy= mb_x + mb_y*s->mb_stride;
+    init_ref(c, s->new_picture.f->data, s->last_picture.f->data, NULL, 16*mb_x, 16*mb_y, 0);
+
+    av_assert0(s->quarter_sample==0 || s->quarter_sample==1);
+
+    c->pre_penalty_factor    = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_pre_cmp);
+    c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_DMV;
+
+    get_limits(s, 16*mb_x, 16*mb_y);
+    c->skip=0;
+
+    P_LEFT[0]       = s->p_mv_table[xy + 1][0];
+    P_LEFT[1]       = s->p_mv_table[xy + 1][1];
+
+    if(P_LEFT[0]       < (c->xmin<<shift)) P_LEFT[0]       = (c->xmin<<shift);
+
+    /* special case for first line */
+    if (s->first_slice_line) {
+        c->pred_x= P_LEFT[0];
+        c->pred_y= P_LEFT[1];
+        P_TOP[0]= P_TOPRIGHT[0]= P_MEDIAN[0]=
+        P_TOP[1]= P_TOPRIGHT[1]= P_MEDIAN[1]= 0; //FIXME
+    } else {
+        P_TOP[0]      = s->p_mv_table[xy + s->mb_stride    ][0];
+        P_TOP[1]      = s->p_mv_table[xy + s->mb_stride    ][1];
+        P_TOPRIGHT[0] = s->p_mv_table[xy + s->mb_stride - 1][0];
+        P_TOPRIGHT[1] = s->p_mv_table[xy + s->mb_stride - 1][1];
+        if(P_TOP[1]      < (c->ymin<<shift)) P_TOP[1]     = (c->ymin<<shift);
+        if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift);
+        if(P_TOPRIGHT[1] < (c->ymin<<shift)) P_TOPRIGHT[1]= (c->ymin<<shift);
+
+        P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
+        P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
+
+        c->pred_x = P_MEDIAN[0];
+        c->pred_y = P_MEDIAN[1];
+    }
+
+    dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);
+
+    s->p_mv_table[xy][0] = mx<<shift;
+    s->p_mv_table[xy][1] = my<<shift;
+
+    return dmin;
+}
+
+static int estimate_motion_b(MpegEncContext *s, int mb_x, int mb_y,
+                             int16_t (*mv_table)[2], int ref_index, int f_code)
+{
+    MotionEstContext * const c= &s->me;
+    int mx = 0, my = 0, dmin = 0;
+    int P[10][2];
+    const int shift= 1+s->quarter_sample;
+    const int mot_stride = s->mb_stride;
+    const int mot_xy = mb_y*mot_stride + mb_x;
+    uint8_t * const mv_penalty= c->mv_penalty[f_code] + MAX_DMV;
+    int mv_scale;
+
+    c->penalty_factor    = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
+    c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
+    c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
+    c->current_mv_penalty= mv_penalty;
+
+    get_limits(s, 16*mb_x, 16*mb_y);
+
+    if (s->motion_est != FF_ME_ZERO) {
+        P_LEFT[0] = mv_table[mot_xy - 1][0];
+        P_LEFT[1] = mv_table[mot_xy - 1][1];
+
+        if (P_LEFT[0] > (c->xmax << shift)) P_LEFT[0] = (c->xmax << shift);
+
+        /* special case for first line */
+        if (!s->first_slice_line) {
+            P_TOP[0]      = mv_table[mot_xy - mot_stride    ][0];
+            P_TOP[1]      = mv_table[mot_xy - mot_stride    ][1];
+            P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1][0];
+            P_TOPRIGHT[1] = mv_table[mot_xy - mot_stride + 1][1];
+            if (P_TOP[1] > (c->ymax << shift)) P_TOP[1] = (c->ymax << shift);
+            if (P_TOPRIGHT[0] < (c->xmin << shift)) P_TOPRIGHT[0] = (c->xmin << shift);
+            if (P_TOPRIGHT[1] > (c->ymax << shift)) P_TOPRIGHT[1] = (c->ymax << shift);
+
+            P_MEDIAN[0] = mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
+            P_MEDIAN[1] = mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
+        }
+        c->pred_x = P_LEFT[0];
+        c->pred_y = P_LEFT[1];
+
+        if(mv_table == s->b_forw_mv_table){
+            mv_scale= (s->pb_time<<16) / (s->pp_time<<shift);
+        }else{
+            mv_scale= ((s->pb_time - s->pp_time)<<16) / (s->pp_time<<shift);
+        }
+
+        dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, ref_index, s->p_mv_table, mv_scale, 0, 16);
+    }
+
+    dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, ref_index, 0, 16);
+
+    if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
+        dmin= get_mb_score(s, mx, my, 0, ref_index, 0, 16, 1);
+
+//    s->mb_type[mb_y*s->mb_width + mb_x]= mb_type;
+    mv_table[mot_xy][0]= mx;
+    mv_table[mot_xy][1]= my;
+
+    return dmin;
+}
+
+static inline int check_bidir_mv(MpegEncContext * s,
+                   int motion_fx, int motion_fy,
+                   int motion_bx, int motion_by,
+                   int pred_fx, int pred_fy,
+                   int pred_bx, int pred_by,
+                   int size, int h)
+{
+    //FIXME optimize?
+    //FIXME better f_code prediction (max mv & distance)
+    //FIXME pointers
+    MotionEstContext * const c= &s->me;
+    uint8_t * const mv_penalty_f= c->mv_penalty[s->f_code] + MAX_DMV; // f_code of the prev frame
+    uint8_t * const mv_penalty_b= c->mv_penalty[s->b_code] + MAX_DMV; // f_code of the prev frame
+    int stride= c->stride;
+    uint8_t *dest_y = c->scratchpad;
+    uint8_t *ptr;
+    int dxy;
+    int src_x, src_y;
+    int fbmin;
+    uint8_t **src_data= c->src[0];
+    uint8_t **ref_data= c->ref[0];
+    uint8_t **ref2_data= c->ref[2];
+
+    if(s->quarter_sample){
+        dxy = ((motion_fy & 3) << 2) | (motion_fx & 3);
+        src_x = motion_fx >> 2;
+        src_y = motion_fy >> 2;
+
+        ptr = ref_data[0] + (src_y * stride) + src_x;
+        s->qdsp.put_qpel_pixels_tab[0][dxy](dest_y, ptr, stride);
+
+        dxy = ((motion_by & 3) << 2) | (motion_bx & 3);
+        src_x = motion_bx >> 2;
+        src_y = motion_by >> 2;
+
+        ptr = ref2_data[0] + (src_y * stride) + src_x;
+        s->qdsp.avg_qpel_pixels_tab[size][dxy](dest_y, ptr, stride);
+    }else{
+        dxy = ((motion_fy & 1) << 1) | (motion_fx & 1);
+        src_x = motion_fx >> 1;
+        src_y = motion_fy >> 1;
+
+        ptr = ref_data[0] + (src_y * stride) + src_x;
+        s->hdsp.put_pixels_tab[size][dxy](dest_y    , ptr    , stride, h);
+
+        dxy = ((motion_by & 1) << 1) | (motion_bx & 1);
+        src_x = motion_bx >> 1;
+        src_y = motion_by >> 1;
+
+        ptr = ref2_data[0] + (src_y * stride) + src_x;
+        s->hdsp.avg_pixels_tab[size][dxy](dest_y    , ptr    , stride, h);
+    }
+
+    fbmin = (mv_penalty_f[motion_fx-pred_fx] + mv_penalty_f[motion_fy-pred_fy])*c->mb_penalty_factor
+           +(mv_penalty_b[motion_bx-pred_bx] + mv_penalty_b[motion_by-pred_by])*c->mb_penalty_factor
+           + s->mecc.mb_cmp[size](s, src_data[0], dest_y, stride, h); // FIXME new_pic
+
+    if(c->avctx->mb_cmp&FF_CMP_CHROMA){
+    }
+    //FIXME CHROMA !!!
+
+    return fbmin;
+}
+
+/* refine the bidir vectors in hq mode and return the score in both lq & hq mode*/
+static inline int bidir_refine(MpegEncContext * s, int mb_x, int mb_y)
+{
+    MotionEstContext * const c= &s->me;
+    const int mot_stride = s->mb_stride;
+    const int xy = mb_y *mot_stride + mb_x;
+    int fbmin;
+    int pred_fx= s->b_bidir_forw_mv_table[xy-1][0];
+    int pred_fy= s->b_bidir_forw_mv_table[xy-1][1];
+    int pred_bx= s->b_bidir_back_mv_table[xy-1][0];
+    int pred_by= s->b_bidir_back_mv_table[xy-1][1];
+    int motion_fx= s->b_bidir_forw_mv_table[xy][0]= s->b_forw_mv_table[xy][0];
+    int motion_fy= s->b_bidir_forw_mv_table[xy][1]= s->b_forw_mv_table[xy][1];
+    int motion_bx= s->b_bidir_back_mv_table[xy][0]= s->b_back_mv_table[xy][0];
+    int motion_by= s->b_bidir_back_mv_table[xy][1]= s->b_back_mv_table[xy][1];
+    const int flags= c->sub_flags;
+    const int qpel= flags&FLAG_QPEL;
+    const int shift= 1+qpel;
+    const int xmin= c->xmin<<shift;
+    const int ymin= c->ymin<<shift;
+    const int xmax= c->xmax<<shift;
+    const int ymax= c->ymax<<shift;
+#define HASH(fx,fy,bx,by) ((fx)+17*(fy)+63*(bx)+117*(by))
+#define HASH8(fx,fy,bx,by) ((uint8_t)HASH(fx,fy,bx,by))
+    int hashidx= HASH(motion_fx,motion_fy, motion_bx, motion_by);
+    uint8_t map[256] = { 0 };
+
+    map[hashidx&255] = 1;
+
+    fbmin= check_bidir_mv(s, motion_fx, motion_fy,
+                          motion_bx, motion_by,
+                          pred_fx, pred_fy,
+                          pred_bx, pred_by,
+                          0, 16);
+
+    if(s->avctx->bidir_refine){
+        int end;
+        static const uint8_t limittab[5]={0,8,32,64,80};
+        const int limit= limittab[s->avctx->bidir_refine];
+        static const int8_t vect[][4]={
+{ 0, 0, 0, 1}, { 0, 0, 0,-1}, { 0, 0, 1, 0}, { 0, 0,-1, 0}, { 0, 1, 0, 0}, { 0,-1, 0, 0}, { 1, 0, 0, 0}, {-1, 0, 0, 0},
+
+{ 0, 0, 1, 1}, { 0, 0,-1,-1}, { 0, 1, 1, 0}, { 0,-1,-1, 0}, { 1, 1, 0, 0}, {-1,-1, 0, 0}, { 1, 0, 0, 1}, {-1, 0, 0,-1},
+{ 0, 1, 0, 1}, { 0,-1, 0,-1}, { 1, 0, 1, 0}, {-1, 0,-1, 0},
+{ 0, 0,-1, 1}, { 0, 0, 1,-1}, { 0,-1, 1, 0}, { 0, 1,-1, 0}, {-1, 1, 0, 0}, { 1,-1, 0, 0}, { 1, 0, 0,-1}, {-1, 0, 0, 1},
+{ 0,-1, 0, 1}, { 0, 1, 0,-1}, {-1, 0, 1, 0}, { 1, 0,-1, 0},
+
+{ 0, 1, 1, 1}, { 0,-1,-1,-1}, { 1, 1, 1, 0}, {-1,-1,-1, 0}, { 1, 1, 0, 1}, {-1,-1, 0,-1}, { 1, 0, 1, 1}, {-1, 0,-1,-1},
+{ 0,-1, 1, 1}, { 0, 1,-1,-1}, {-1, 1, 1, 0}, { 1,-1,-1, 0}, { 1, 1, 0,-1}, {-1,-1, 0, 1}, { 1, 0,-1, 1}, {-1, 0, 1,-1},
+{ 0, 1,-1, 1}, { 0,-1, 1,-1}, { 1,-1, 1, 0}, {-1, 1,-1, 0}, {-1, 1, 0, 1}, { 1,-1, 0,-1}, { 1, 0, 1,-1}, {-1, 0,-1, 1},
+{ 0, 1, 1,-1}, { 0,-1,-1, 1}, { 1, 1,-1, 0}, {-1,-1, 1, 0}, { 1,-1, 0, 1}, {-1, 1, 0,-1}, {-1, 0, 1, 1}, { 1, 0,-1,-1},
+
+{ 1, 1, 1, 1}, {-1,-1,-1,-1},
+{ 1, 1, 1,-1}, {-1,-1,-1, 1}, { 1, 1,-1, 1}, {-1,-1, 1,-1}, { 1,-1, 1, 1}, {-1, 1,-1,-1}, {-1, 1, 1, 1}, { 1,-1,-1,-1},
+{ 1, 1,-1,-1}, {-1,-1, 1, 1}, { 1,-1,-1, 1}, {-1, 1, 1,-1}, { 1,-1, 1,-1}, {-1, 1,-1, 1},
+        };
+        static const uint8_t hash[]={
+HASH8( 0, 0, 0, 1), HASH8( 0, 0, 0,-1), HASH8( 0, 0, 1, 0), HASH8( 0, 0,-1, 0), HASH8( 0, 1, 0, 0), HASH8( 0,-1, 0, 0), HASH8( 1, 0, 0, 0), HASH8(-1, 0, 0, 0),
+
+HASH8( 0, 0, 1, 1), HASH8( 0, 0,-1,-1), HASH8( 0, 1, 1, 0), HASH8( 0,-1,-1, 0), HASH8( 1, 1, 0, 0), HASH8(-1,-1, 0, 0), HASH8( 1, 0, 0, 1), HASH8(-1, 0, 0,-1),
+HASH8( 0, 1, 0, 1), HASH8( 0,-1, 0,-1), HASH8( 1, 0, 1, 0), HASH8(-1, 0,-1, 0),
+HASH8( 0, 0,-1, 1), HASH8( 0, 0, 1,-1), HASH8( 0,-1, 1, 0), HASH8( 0, 1,-1, 0), HASH8(-1, 1, 0, 0), HASH8( 1,-1, 0, 0), HASH8( 1, 0, 0,-1), HASH8(-1, 0, 0, 1),
+HASH8( 0,-1, 0, 1), HASH8( 0, 1, 0,-1), HASH8(-1, 0, 1, 0), HASH8( 1, 0,-1, 0),
+
+HASH8( 0, 1, 1, 1), HASH8( 0,-1,-1,-1), HASH8( 1, 1, 1, 0), HASH8(-1,-1,-1, 0), HASH8( 1, 1, 0, 1), HASH8(-1,-1, 0,-1), HASH8( 1, 0, 1, 1), HASH8(-1, 0,-1,-1),
+HASH8( 0,-1, 1, 1), HASH8( 0, 1,-1,-1), HASH8(-1, 1, 1, 0), HASH8( 1,-1,-1, 0), HASH8( 1, 1, 0,-1), HASH8(-1,-1, 0, 1), HASH8( 1, 0,-1, 1), HASH8(-1, 0, 1,-1),
+HASH8( 0, 1,-1, 1), HASH8( 0,-1, 1,-1), HASH8( 1,-1, 1, 0), HASH8(-1, 1,-1, 0), HASH8(-1, 1, 0, 1), HASH8( 1,-1, 0,-1), HASH8( 1, 0, 1,-1), HASH8(-1, 0,-1, 1),
+HASH8( 0, 1, 1,-1), HASH8( 0,-1,-1, 1), HASH8( 1, 1,-1, 0), HASH8(-1,-1, 1, 0), HASH8( 1,-1, 0, 1), HASH8(-1, 1, 0,-1), HASH8(-1, 0, 1, 1), HASH8( 1, 0,-1,-1),
+
+HASH8( 1, 1, 1, 1), HASH8(-1,-1,-1,-1),
+HASH8( 1, 1, 1,-1), HASH8(-1,-1,-1, 1), HASH8( 1, 1,-1, 1), HASH8(-1,-1, 1,-1), HASH8( 1,-1, 1, 1), HASH8(-1, 1,-1,-1), HASH8(-1, 1, 1, 1), HASH8( 1,-1,-1,-1),
+HASH8( 1, 1,-1,-1), HASH8(-1,-1, 1, 1), HASH8( 1,-1,-1, 1), HASH8(-1, 1, 1,-1), HASH8( 1,-1, 1,-1), HASH8(-1, 1,-1, 1),
+};
+
+#define CHECK_BIDIR(fx,fy,bx,by)\
+    if( !map[(hashidx+HASH(fx,fy,bx,by))&255]\
+       &&(fx<=0 || motion_fx+fx<=xmax) && (fy<=0 || motion_fy+fy<=ymax) && (bx<=0 || motion_bx+bx<=xmax) && (by<=0 || motion_by+by<=ymax)\
+       &&(fx>=0 || motion_fx+fx>=xmin) && (fy>=0 || motion_fy+fy>=ymin) && (bx>=0 || motion_bx+bx>=xmin) && (by>=0 || motion_by+by>=ymin)){\
+        int score;\
+        map[(hashidx+HASH(fx,fy,bx,by))&255] = 1;\
+        score= check_bidir_mv(s, motion_fx+fx, motion_fy+fy, motion_bx+bx, motion_by+by, pred_fx, pred_fy, pred_bx, pred_by, 0, 16);\
+        if(score < fbmin){\
+            hashidx += HASH(fx,fy,bx,by);\
+            fbmin= score;\
+            motion_fx+=fx;\
+            motion_fy+=fy;\
+            motion_bx+=bx;\
+            motion_by+=by;\
+            end=0;\
+        }\
+    }
+#define CHECK_BIDIR2(a,b,c,d)\
+CHECK_BIDIR(a,b,c,d)\
+CHECK_BIDIR(-(a),-(b),-(c),-(d))
+
+        do{
+            int i;
+            int borderdist=0;
+            end=1;
+
+            CHECK_BIDIR2(0,0,0,1)
+            CHECK_BIDIR2(0,0,1,0)
+            CHECK_BIDIR2(0,1,0,0)
+            CHECK_BIDIR2(1,0,0,0)
+
+            for(i=8; i<limit; i++){
+                int fx= motion_fx+vect[i][0];
+                int fy= motion_fy+vect[i][1];
+                int bx= motion_bx+vect[i][2];
+                int by= motion_by+vect[i][3];
+                if(borderdist<=0){
+                    int a= (xmax - FFMAX(fx,bx))|(FFMIN(fx,bx) - xmin);
+                    int b= (ymax - FFMAX(fy,by))|(FFMIN(fy,by) - ymin);
+                    if((a|b) < 0)
+                        map[(hashidx+hash[i])&255] = 1;
+                }
+                if(!map[(hashidx+hash[i])&255]){
+                    int score;
+                    map[(hashidx+hash[i])&255] = 1;
+                    score= check_bidir_mv(s, fx, fy, bx, by, pred_fx, pred_fy, pred_bx, pred_by, 0, 16);
+                    if(score < fbmin){
+                        hashidx += hash[i];
+                        fbmin= score;
+                        motion_fx=fx;
+                        motion_fy=fy;
+                        motion_bx=bx;
+                        motion_by=by;
+                        end=0;
+                        borderdist--;
+                        if(borderdist<=0){
+                            int a= FFMIN(xmax - FFMAX(fx,bx), FFMIN(fx,bx) - xmin);
+                            int b= FFMIN(ymax - FFMAX(fy,by), FFMIN(fy,by) - ymin);
+                            borderdist= FFMIN(a,b);
+                        }
+                    }
+                }
+            }
+        }while(!end);
+    }
+
+    s->b_bidir_forw_mv_table[xy][0]= motion_fx;
+    s->b_bidir_forw_mv_table[xy][1]= motion_fy;
+    s->b_bidir_back_mv_table[xy][0]= motion_bx;
+    s->b_bidir_back_mv_table[xy][1]= motion_by;
+
+    return fbmin;
+}
+
+static inline int direct_search(MpegEncContext * s, int mb_x, int mb_y)
+{
+    MotionEstContext * const c= &s->me;
+    int P[10][2];
+    const int mot_stride = s->mb_stride;
+    const int mot_xy = mb_y*mot_stride + mb_x;
+    const int shift= 1+s->quarter_sample;
+    int dmin, i;
+    const int time_pp= s->pp_time;
+    const int time_pb= s->pb_time;
+    int mx, my, xmin, xmax, ymin, ymax;
+    int16_t (*mv_table)[2]= s->b_direct_mv_table;
+
+    c->current_mv_penalty= c->mv_penalty[1] + MAX_DMV;
+    ymin= xmin=(-32)>>shift;
+    ymax= xmax=   31>>shift;
+
+    if (IS_8X8(s->next_picture.mb_type[mot_xy])) {
+        s->mv_type= MV_TYPE_8X8;
+    }else{
+        s->mv_type= MV_TYPE_16X16;
+    }
+
+    for(i=0; i<4; i++){
+        int index= s->block_index[i];
+        int min, max;
+
+        c->co_located_mv[i][0] = s->next_picture.motion_val[0][index][0];
+        c->co_located_mv[i][1] = s->next_picture.motion_val[0][index][1];
+        c->direct_basis_mv[i][0]= c->co_located_mv[i][0]*time_pb/time_pp + ((i& 1)<<(shift+3));
+        c->direct_basis_mv[i][1]= c->co_located_mv[i][1]*time_pb/time_pp + ((i>>1)<<(shift+3));
+//        c->direct_basis_mv[1][i][0]= c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(shift+3);
+//        c->direct_basis_mv[1][i][1]= c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(shift+3);
+
+        max= FFMAX(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;
+        min= FFMIN(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;
+        max+= 16*mb_x + 1; // +-1 is for the simpler rounding
+        min+= 16*mb_x - 1;
+        xmax= FFMIN(xmax, s->width - max);
+        xmin= FFMAX(xmin, - 16     - min);
+
+        max= FFMAX(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;
+        min= FFMIN(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;
+        max+= 16*mb_y + 1; // +-1 is for the simpler rounding
+        min+= 16*mb_y - 1;
+        ymax= FFMIN(ymax, s->height - max);
+        ymin= FFMAX(ymin, - 16      - min);
+
+        if(s->mv_type == MV_TYPE_16X16) break;
+    }
+
+    av_assert2(xmax <= 15 && ymax <= 15 && xmin >= -16 && ymin >= -16);
+
+    if(xmax < 0 || xmin >0 || ymax < 0 || ymin > 0){
+        s->b_direct_mv_table[mot_xy][0]= 0;
+        s->b_direct_mv_table[mot_xy][1]= 0;
+
+        return 256*256*256*64;
+    }
+
+    c->xmin= xmin;
+    c->ymin= ymin;
+    c->xmax= xmax;
+    c->ymax= ymax;
+    c->flags     |= FLAG_DIRECT;
+    c->sub_flags |= FLAG_DIRECT;
+    c->pred_x=0;
+    c->pred_y=0;
+
+    P_LEFT[0]        = av_clip(mv_table[mot_xy - 1][0], xmin<<shift, xmax<<shift);
+    P_LEFT[1]        = av_clip(mv_table[mot_xy - 1][1], ymin<<shift, ymax<<shift);
+
+    /* special case for first line */
+    if (!s->first_slice_line) { //FIXME maybe allow this over thread boundary as it is clipped
+        P_TOP[0]      = av_clip(mv_table[mot_xy - mot_stride             ][0], xmin<<shift, xmax<<shift);
+        P_TOP[1]      = av_clip(mv_table[mot_xy - mot_stride             ][1], ymin<<shift, ymax<<shift);
+        P_TOPRIGHT[0] = av_clip(mv_table[mot_xy - mot_stride + 1         ][0], xmin<<shift, xmax<<shift);
+        P_TOPRIGHT[1] = av_clip(mv_table[mot_xy - mot_stride + 1         ][1], ymin<<shift, ymax<<shift);
+
+        P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
+        P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
+    }
+
+    dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, mv_table, 1<<(16-shift), 0, 16);
+    if(c->sub_flags&FLAG_QPEL)
+        dmin = qpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
+    else
+        dmin = hpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
+
+    if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
+        dmin= get_mb_score(s, mx, my, 0, 0, 0, 16, 1);
+
+    get_limits(s, 16*mb_x, 16*mb_y); //restore c->?min/max, maybe not needed
+
+    mv_table[mot_xy][0]= mx;
+    mv_table[mot_xy][1]= my;
+    c->flags     &= ~FLAG_DIRECT;
+    c->sub_flags &= ~FLAG_DIRECT;
+
+    return dmin;
+}
+
+void ff_estimate_b_frame_motion(MpegEncContext * s,
+                             int mb_x, int mb_y)
+{
+    MotionEstContext * const c= &s->me;
+    const int penalty_factor= c->mb_penalty_factor;
+    int fmin, bmin, dmin, fbmin, bimin, fimin;
+    int type=0;
+    const int xy = mb_y*s->mb_stride + mb_x;
+    init_ref(c, s->new_picture.f->data, s->last_picture.f->data,
+             s->next_picture.f->data, 16 * mb_x, 16 * mb_y, 2);
+
+    get_limits(s, 16*mb_x, 16*mb_y);
+
+    c->skip=0;
+
+    if (s->codec_id == AV_CODEC_ID_MPEG4 && s->next_picture.mbskip_table[xy]) {
+        int score= direct_search(s, mb_x, mb_y); //FIXME just check 0,0
+
+        score= ((unsigned)(score*score + 128*256))>>16;
+        c->mc_mb_var_sum_temp += score;
+        s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
+        s->mb_type[mb_y*s->mb_stride + mb_x]= CANDIDATE_MB_TYPE_DIRECT0;
+
+        return;
+    }
+
+    if (s->codec_id == AV_CODEC_ID_MPEG4)
+        dmin= direct_search(s, mb_x, mb_y);
+    else
+        dmin= INT_MAX;
+// FIXME penalty stuff for non-MPEG-4
+    c->skip=0;
+    fmin = estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code) +
+           3 * penalty_factor;
+
+    c->skip=0;
+    bmin = estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code) +
+           2 * penalty_factor;
+    ff_dlog(s, " %d %d ", s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1]);
+
+    c->skip=0;
+    fbmin= bidir_refine(s, mb_x, mb_y) + penalty_factor;
+    ff_dlog(s, "%d %d %d %d\n", dmin, fmin, bmin, fbmin);
+
+    if (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME) {
+//FIXME mb type penalty
+        c->skip=0;
+        c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_DMV;
+        fimin= interlaced_search(s, 0,
+                                 s->b_field_mv_table[0], s->b_field_select_table[0],
+                                 s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1], 0);
+        c->current_mv_penalty= c->mv_penalty[s->b_code] + MAX_DMV;
+        bimin= interlaced_search(s, 2,
+                                 s->b_field_mv_table[1], s->b_field_select_table[1],
+                                 s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1], 0);
+    }else
+        fimin= bimin= INT_MAX;
+
+    {
+        int score= fmin;
+        type = CANDIDATE_MB_TYPE_FORWARD;
+
+        if (dmin <= score){
+            score = dmin;
+            type = CANDIDATE_MB_TYPE_DIRECT;
+        }
+        if(bmin<score){
+            score=bmin;
+            type= CANDIDATE_MB_TYPE_BACKWARD;
+        }
+        if(fbmin<score){
+            score=fbmin;
+            type= CANDIDATE_MB_TYPE_BIDIR;
+        }
+        if(fimin<score){
+            score=fimin;
+            type= CANDIDATE_MB_TYPE_FORWARD_I;
+        }
+        if(bimin<score){
+            score=bimin;
+            type= CANDIDATE_MB_TYPE_BACKWARD_I;
+        }
+
+        score= ((unsigned)(score*score + 128*256))>>16;
+        c->mc_mb_var_sum_temp += score;
+        s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
+    }
+
+    if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
+        type= CANDIDATE_MB_TYPE_FORWARD | CANDIDATE_MB_TYPE_BACKWARD | CANDIDATE_MB_TYPE_BIDIR | CANDIDATE_MB_TYPE_DIRECT;
+        if(fimin < INT_MAX)
+            type |= CANDIDATE_MB_TYPE_FORWARD_I;
+        if(bimin < INT_MAX)
+            type |= CANDIDATE_MB_TYPE_BACKWARD_I;
+        if(fimin < INT_MAX && bimin < INT_MAX){
+            type |= CANDIDATE_MB_TYPE_BIDIR_I;
+        }
+         //FIXME something smarter
+        if(dmin>256*256*16) type&= ~CANDIDATE_MB_TYPE_DIRECT; //do not try direct mode if it is invalid for this MB
+        if (s->codec_id == AV_CODEC_ID_MPEG4 && type&CANDIDATE_MB_TYPE_DIRECT &&
+            s->mpv_flags & FF_MPV_FLAG_MV0 && *(uint32_t*)s->b_direct_mv_table[xy])
+            type |= CANDIDATE_MB_TYPE_DIRECT0;
+    }
+
+    s->mb_type[mb_y*s->mb_stride + mb_x]= type;
+}
+
+/* find best f_code for ME which do unlimited searches */
+int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type)
+{
+    if (s->motion_est != FF_ME_ZERO) {
+        int score[8];
+        int i, y, range= s->avctx->me_range ? s->avctx->me_range : (INT_MAX/2);
+        uint8_t * fcode_tab= s->fcode_tab;
+        int best_fcode=-1;
+        int best_score=-10000000;
+
+        if(s->msmpeg4_version)
+            range= FFMIN(range, 16);
+        else if(s->codec_id == AV_CODEC_ID_MPEG2VIDEO && s->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL)
+            range= FFMIN(range, 256);
+
+        for(i=0; i<8; i++) score[i]= s->mb_num*(8-i);
+
+        for(y=0; y<s->mb_height; y++){
+            int x;
+            int xy= y*s->mb_stride;
+            for(x=0; x<s->mb_width; x++){
+                if(s->mb_type[xy] & type){
+                    int mx= mv_table[xy][0];
+                    int my= mv_table[xy][1];
+                    int fcode= FFMAX(fcode_tab[mx + MAX_MV],
+                                     fcode_tab[my + MAX_MV]);
+                    int j;
+
+                        if(mx >= range || mx < -range ||
+                           my >= range || my < -range)
+                            continue;
+
+                    for(j=0; j<fcode && j<8; j++){
+                        if(s->pict_type==AV_PICTURE_TYPE_B || s->current_picture.mc_mb_var[xy] < s->current_picture.mb_var[xy])
+                            score[j]-= 170;
+                    }
+                }
+                xy++;
+            }
+        }
+
+        for(i=1; i<8; i++){
+            if(score[i] > best_score){
+                best_score= score[i];
+                best_fcode= i;
+            }
+        }
+
+        return best_fcode;
+    }else{
+        return 1;
+    }
+}
+
+void ff_fix_long_p_mvs(MpegEncContext * s)
+{
+    MotionEstContext * const c= &s->me;
+    const int f_code= s->f_code;
+    int y, range;
+    av_assert0(s->pict_type==AV_PICTURE_TYPE_P);
+
+    range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);
+
+    av_assert0(range <= 16 || !s->msmpeg4_version);
+    av_assert0(range <=256 || !(s->codec_id == AV_CODEC_ID_MPEG2VIDEO && s->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL));
+
+    if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;
+
+    if (s->avctx->flags & AV_CODEC_FLAG_4MV) {
+        const int wrap= s->b8_stride;
+
+        /* clip / convert to intra 8x8 type MVs */
+        for(y=0; y<s->mb_height; y++){
+            int xy= y*2*wrap;
+            int i= y*s->mb_stride;
+            int x;
+
+            for(x=0; x<s->mb_width; x++){
+                if(s->mb_type[i]&CANDIDATE_MB_TYPE_INTER4V){
+                    int block;
+                    for(block=0; block<4; block++){
+                        int off= (block& 1) + (block>>1)*wrap;
+                        int mx = s->current_picture.motion_val[0][ xy + off ][0];
+                        int my = s->current_picture.motion_val[0][ xy + off ][1];
+
+                        if(   mx >=range || mx <-range
+                           || my >=range || my <-range){
+                            s->mb_type[i] &= ~CANDIDATE_MB_TYPE_INTER4V;
+                            s->mb_type[i] |= CANDIDATE_MB_TYPE_INTRA;
+                            s->current_picture.mb_type[i] = CANDIDATE_MB_TYPE_INTRA;
+                        }
+                    }
+                }
+                xy+=2;
+                i++;
+            }
+        }
+    }
+}
+
+/**
+ * @param truncate 1 for truncation, 0 for using intra
+ */
+void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
+                     int16_t (*mv_table)[2], int f_code, int type, int truncate)
+{
+    MotionEstContext * const c= &s->me;
+    int y, h_range, v_range;
+
+    // RAL: 8 in MPEG-1, 16 in MPEG-4
+    int range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);
+
+    if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;
+
+    h_range= range;
+    v_range= field_select_table ? range>>1 : range;
+
+    /* clip / convert to intra 16x16 type MVs */
+    for(y=0; y<s->mb_height; y++){
+        int x;
+        int xy= y*s->mb_stride;
+        for(x=0; x<s->mb_width; x++){
+            if (s->mb_type[xy] & type){    // RAL: "type" test added...
+                if (!field_select_table || field_select_table[xy] == field_select) {
+                    if(   mv_table[xy][0] >=h_range || mv_table[xy][0] <-h_range
+                       || mv_table[xy][1] >=v_range || mv_table[xy][1] <-v_range){
+
+                        if(truncate){
+                            if     (mv_table[xy][0] > h_range-1) mv_table[xy][0]=  h_range-1;
+                            else if(mv_table[xy][0] < -h_range ) mv_table[xy][0]= -h_range;
+                            if     (mv_table[xy][1] > v_range-1) mv_table[xy][1]=  v_range-1;
+                            else if(mv_table[xy][1] < -v_range ) mv_table[xy][1]= -v_range;
+                        }else{
+                            s->mb_type[xy] &= ~type;
+                            s->mb_type[xy] |= CANDIDATE_MB_TYPE_INTRA;
+                            mv_table[xy][0]=
+                            mv_table[xy][1]= 0;
+                        }
+                    }
+                }
+            }
+            xy++;
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/motion_est.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/motion_est.h
new file mode 100644
index 000000000..3b3a8d734
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/motion_est.h
@@ -0,0 +1,135 @@
+/*
+ * Motion estimation
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MOTION_EST_H
+#define AVCODEC_MOTION_EST_H
+
+#include <stdint.h>
+
+#include "avcodec.h"
+#include "hpeldsp.h"
+#include "qpeldsp.h"
+
+struct MpegEncContext;
+
+#if ARCH_IA64 // Limit static arrays to avoid gcc failing "short data segment overflowed"
+#define MAX_MV 1024
+#else
+#define MAX_MV 4096
+#endif
+#define MAX_DMV (2*MAX_MV)
+#define ME_MAP_SIZE 64
+
+#define FF_ME_ZERO 0
+#define FF_ME_EPZS 1
+#define FF_ME_XONE 2
+
+/**
+ * Motion estimation context.
+ */
+typedef struct MotionEstContext {
+    AVCodecContext *avctx;
+    int skip;                       ///< set if ME is skipped for the current MB
+    int co_located_mv[4][2];        ///< mv from last P-frame for direct mode ME
+    int direct_basis_mv[4][2];
+    uint8_t *scratchpad;            /**< data area for the ME algo, so that
+                                     * the ME does not need to malloc/free. */
+    uint8_t *best_mb;
+    uint8_t *temp_mb[2];
+    uint8_t *temp;
+    int best_bits;
+    uint32_t *map;                  ///< map to avoid duplicate evaluations
+    uint32_t *score_map;            ///< map to store the scores
+    unsigned map_generation;
+    int pre_penalty_factor;
+    int penalty_factor;             /**< an estimate of the bits required to
+                                     * code a given mv value, e.g. (1,0) takes
+                                     * more bits than (0,0). We have to
+                                     * estimate whether any reduction in
+                                     * residual is worth the extra bits. */
+    int sub_penalty_factor;
+    int mb_penalty_factor;
+    int flags;
+    int sub_flags;
+    int mb_flags;
+    int pre_pass;                   ///< = 1 for the pre pass
+    int dia_size;
+    int xmin;
+    int xmax;
+    int ymin;
+    int ymax;
+    int pred_x;
+    int pred_y;
+    uint8_t *src[4][4];
+    uint8_t *ref[4][4];
+    int stride;
+    int uvstride;
+    /* temp variables for picture complexity calculation */
+    int64_t mc_mb_var_sum_temp;
+    int64_t mb_var_sum_temp;
+    int scene_change_score;
+
+    op_pixels_func(*hpel_put)[4];
+    op_pixels_func(*hpel_avg)[4];
+    qpel_mc_func(*qpel_put)[16];
+    qpel_mc_func(*qpel_avg)[16];
+    uint8_t (*mv_penalty)[MAX_DMV * 2 + 1]; ///< bit amount needed to encode a MV
+    uint8_t *current_mv_penalty;
+    int (*sub_motion_search)(struct MpegEncContext *s,
+                             int *mx_ptr, int *my_ptr, int dmin,
+                             int src_index, int ref_index,
+                             int size, int h);
+} MotionEstContext;
+
+static inline int ff_h263_round_chroma(int x)
+{
+    //FIXME static or not?
+    static const uint8_t h263_chroma_roundtab[16] = {
+    //  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15
+        0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
+    };
+    return h263_chroma_roundtab[x & 0xf] + (x >> 3);
+}
+
+int ff_init_me(struct MpegEncContext *s);
+
+void ff_estimate_p_frame_motion(struct MpegEncContext *s, int mb_x, int mb_y);
+void ff_estimate_b_frame_motion(struct MpegEncContext *s, int mb_x, int mb_y);
+
+int ff_pre_estimate_p_frame_motion(struct MpegEncContext *s,
+                                   int mb_x, int mb_y);
+
+int ff_epzs_motion_search(struct MpegEncContext *s, int *mx_ptr, int *my_ptr,
+                          int P[10][2], int src_index, int ref_index,
+                          int16_t (*last_mv)[2], int ref_mv_scale, int size,
+                          int h);
+
+int ff_get_mb_score(struct MpegEncContext *s, int mx, int my, int src_index,
+                    int ref_index, int size, int h, int add_rate);
+
+int ff_get_best_fcode(struct MpegEncContext *s,
+                      int16_t (*mv_table)[2], int type);
+
+void ff_fix_long_p_mvs(struct MpegEncContext *s);
+void ff_fix_long_mvs(struct MpegEncContext *s, uint8_t *field_select_table,
+                     int field_select, int16_t (*mv_table)[2], int f_code,
+                     int type, int truncate);
+
+#endif /* AVCODEC_MOTION_EST_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12.c
new file mode 100644
index 000000000..ab6c19c61
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12.c
@@ -0,0 +1,332 @@
+/*
+ * MPEG-1/2 decoder
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * MPEG-1/2 decoder
+ */
+
+#define UNCHECKED_BITSTREAM_READER 1
+
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
+#include "libavutil/timecode.h"
+
+#include "internal.h"
+#include "avcodec.h"
+#include "mpegvideo.h"
+#include "error_resilience.h"
+#include "mpeg12.h"
+#include "mpeg12data.h"
+#include "mpegvideodata.h"
+#include "bytestream.h"
+#include "thread.h"
+
+uint8_t ff_mpeg12_static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3];
+
+static const uint8_t table_mb_ptype[7][2] = {
+    { 3, 5 }, // 0x01 MB_INTRA
+    { 1, 2 }, // 0x02 MB_PAT
+    { 1, 3 }, // 0x08 MB_FOR
+    { 1, 1 }, // 0x0A MB_FOR|MB_PAT
+    { 1, 6 }, // 0x11 MB_QUANT|MB_INTRA
+    { 1, 5 }, // 0x12 MB_QUANT|MB_PAT
+    { 2, 5 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT
+};
+
+static const uint8_t table_mb_btype[11][2] = {
+    { 3, 5 }, // 0x01 MB_INTRA
+    { 2, 3 }, // 0x04 MB_BACK
+    { 3, 3 }, // 0x06 MB_BACK|MB_PAT
+    { 2, 4 }, // 0x08 MB_FOR
+    { 3, 4 }, // 0x0A MB_FOR|MB_PAT
+    { 2, 2 }, // 0x0C MB_FOR|MB_BACK
+    { 3, 2 }, // 0x0E MB_FOR|MB_BACK|MB_PAT
+    { 1, 6 }, // 0x11 MB_QUANT|MB_INTRA
+    { 2, 6 }, // 0x16 MB_QUANT|MB_BACK|MB_PAT
+    { 3, 6 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT
+    { 2, 5 }, // 0x1E MB_QUANT|MB_FOR|MB_BACK|MB_PAT
+};
+
+av_cold void ff_init_2d_vlc_rl(RLTable *rl, unsigned static_size, int flags)
+{
+    int i;
+    VLC_TYPE table[680][2] = {{0}};
+    VLC vlc = { .table = table, .table_allocated = static_size };
+    av_assert0(static_size <= FF_ARRAY_ELEMS(table));
+    init_vlc(&vlc, TEX_VLC_BITS, rl->n + 2, &rl->table_vlc[0][1], 4, 2, &rl->table_vlc[0][0], 4, 2, INIT_VLC_USE_NEW_STATIC | flags);
+
+    for (i = 0; i < vlc.table_size; i++) {
+        int code = vlc.table[i][0];
+        int len  = vlc.table[i][1];
+        int level, run;
+
+        if (len == 0) { // illegal code
+            run   = 65;
+            level = MAX_LEVEL;
+        } else if (len<0) { //more bits needed
+            run   = 0;
+            level = code;
+        } else {
+            if (code == rl->n) { //esc
+                run   = 65;
+                level = 0;
+            } else if (code == rl->n+1) { //eob
+                run   = 0;
+                level = 127;
+            } else {
+                run   = rl->table_run  [code] + 1;
+                level = rl->table_level[code];
+            }
+        }
+        rl->rl_vlc[0][i].len   = len;
+        rl->rl_vlc[0][i].level = level;
+        rl->rl_vlc[0][i].run   = run;
+    }
+}
+
+av_cold void ff_mpeg12_common_init(MpegEncContext *s)
+{
+
+    s->y_dc_scale_table =
+    s->c_dc_scale_table = ff_mpeg2_dc_scale_table[s->intra_dc_precision];
+
+}
+
+void ff_mpeg1_clean_buffers(MpegEncContext *s)
+{
+    s->last_dc[0] = 1 << (7 + s->intra_dc_precision);
+    s->last_dc[1] = s->last_dc[0];
+    s->last_dc[2] = s->last_dc[0];
+    memset(s->last_mv, 0, sizeof(s->last_mv));
+}
+
+
+/******************************************/
+/* decoding */
+
+VLC ff_mv_vlc;
+
+VLC ff_dc_lum_vlc;
+VLC ff_dc_chroma_vlc;
+
+VLC ff_mbincr_vlc;
+VLC ff_mb_ptype_vlc;
+VLC ff_mb_btype_vlc;
+VLC ff_mb_pat_vlc;
+
+av_cold void ff_mpeg12_init_vlcs(void)
+{
+    static int done = 0;
+
+    if (!done) {
+        done = 1;
+
+        INIT_VLC_STATIC(&ff_dc_lum_vlc, DC_VLC_BITS, 12,
+                        ff_mpeg12_vlc_dc_lum_bits, 1, 1,
+                        ff_mpeg12_vlc_dc_lum_code, 2, 2, 512);
+        INIT_VLC_STATIC(&ff_dc_chroma_vlc,  DC_VLC_BITS, 12,
+                        ff_mpeg12_vlc_dc_chroma_bits, 1, 1,
+                        ff_mpeg12_vlc_dc_chroma_code, 2, 2, 514);
+        INIT_VLC_STATIC(&ff_mv_vlc, MV_VLC_BITS, 17,
+                        &ff_mpeg12_mbMotionVectorTable[0][1], 2, 1,
+                        &ff_mpeg12_mbMotionVectorTable[0][0], 2, 1, 518);
+        INIT_VLC_STATIC(&ff_mbincr_vlc, MBINCR_VLC_BITS, 36,
+                        &ff_mpeg12_mbAddrIncrTable[0][1], 2, 1,
+                        &ff_mpeg12_mbAddrIncrTable[0][0], 2, 1, 538);
+        INIT_VLC_STATIC(&ff_mb_pat_vlc, MB_PAT_VLC_BITS, 64,
+                        &ff_mpeg12_mbPatTable[0][1], 2, 1,
+                        &ff_mpeg12_mbPatTable[0][0], 2, 1, 512);
+
+        INIT_VLC_STATIC(&ff_mb_ptype_vlc, MB_PTYPE_VLC_BITS, 7,
+                        &table_mb_ptype[0][1], 2, 1,
+                        &table_mb_ptype[0][0], 2, 1, 64);
+        INIT_VLC_STATIC(&ff_mb_btype_vlc, MB_BTYPE_VLC_BITS, 11,
+                        &table_mb_btype[0][1], 2, 1,
+                        &table_mb_btype[0][0], 2, 1, 64);
+        ff_rl_init(&ff_rl_mpeg1, ff_mpeg12_static_rl_table_store[0]);
+        ff_rl_init(&ff_rl_mpeg2, ff_mpeg12_static_rl_table_store[1]);
+
+        INIT_2D_VLC_RL(ff_rl_mpeg1, 680, 0);
+        INIT_2D_VLC_RL(ff_rl_mpeg2, 674, 0);
+    }
+}
+
+/**
+ * Find the end of the current frame in the bitstream.
+ * @return the position of the first byte of the next frame, or -1
+ */
+int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s)
+{
+    int i;
+    uint32_t state = pc->state;
+
+    /* EOF considered as end of frame */
+    if (buf_size == 0)
+        return 0;
+
+/*
+ 0  frame start         -> 1/4
+ 1  first_SEQEXT        -> 0/2
+ 2  first field start   -> 3/0
+ 3  second_SEQEXT       -> 2/0
+ 4  searching end
+*/
+
+    for (i = 0; i < buf_size; i++) {
+        av_assert1(pc->frame_start_found >= 0 && pc->frame_start_found <= 4);
+        if (pc->frame_start_found & 1) {
+            if (state == EXT_START_CODE && (buf[i] & 0xF0) != 0x80)
+                pc->frame_start_found--;
+            else if (state == EXT_START_CODE + 2) {
+                if ((buf[i] & 3) == 3)
+                    pc->frame_start_found = 0;
+                else
+                    pc->frame_start_found = (pc->frame_start_found + 1) & 3;
+            }
+            state++;
+        } else {
+            i = avpriv_find_start_code(buf + i, buf + buf_size, &state) - buf - 1;
+            if (pc->frame_start_found == 0 && state >= SLICE_MIN_START_CODE && state <= SLICE_MAX_START_CODE) {
+                i++;
+                pc->frame_start_found = 4;
+            }
+            if (state == SEQ_END_CODE) {
+                pc->frame_start_found = 0;
+                pc->state=-1;
+                return i+1;
+            }
+            if (pc->frame_start_found == 2 && state == SEQ_START_CODE)
+                pc->frame_start_found = 0;
+            if (pc->frame_start_found  < 4 && state == EXT_START_CODE)
+                pc->frame_start_found++;
+            if (pc->frame_start_found == 4 && (state & 0xFFFFFF00) == 0x100) {
+                if (state < SLICE_MIN_START_CODE || state > SLICE_MAX_START_CODE) {
+                    pc->frame_start_found = 0;
+                    pc->state             = -1;
+                    return i - 3;
+                }
+            }
+            if (pc->frame_start_found == 0 && s && state == PICTURE_START_CODE) {
+                ff_fetch_timestamp(s, i - 3, 1, i > 3);
+            }
+        }
+    }
+    pc->state = state;
+    return END_NOT_FOUND;
+}
+
+#define MAX_INDEX (64 - 1)
+
+int ff_mpeg1_decode_block_intra(GetBitContext *gb,
+                                const uint16_t *quant_matrix,
+                                uint8_t *const scantable, int last_dc[3],
+                                int16_t *block, int index, int qscale)
+{
+    int dc, diff, i = 0, component;
+    RLTable *rl = &ff_rl_mpeg1;
+
+    /* DC coefficient */
+    component = index <= 3 ? 0 : index - 4 + 1;
+
+    diff = decode_dc(gb, component);
+    if (diff >= 0xffff)
+        return AVERROR_INVALIDDATA;
+
+    dc  = last_dc[component];
+    dc += diff;
+    last_dc[component] = dc;
+
+    block[0] = dc * quant_matrix[0];
+
+    {
+        OPEN_READER(re, gb);
+        UPDATE_CACHE(re, gb);
+        if (((int32_t)GET_CACHE(re, gb)) <= (int32_t)0xBFFFFFFF)
+            goto end;
+
+        /* now quantify & encode AC coefficients */
+        while (1) {
+            int level, run, j;
+
+            GET_RL_VLC(level, run, re, gb, rl->rl_vlc[0],
+                       TEX_VLC_BITS, 2, 0);
+
+            if (level != 0) {
+                i += run;
+                if (i > MAX_INDEX)
+                    break;
+
+                j = scantable[i];
+                level = (level * qscale * quant_matrix[j]) >> 4;
+                level = (level - 1) | 1;
+                level = (level ^ SHOW_SBITS(re, gb, 1)) -
+                        SHOW_SBITS(re, gb, 1);
+                SKIP_BITS(re, gb, 1);
+            } else {
+                /* escape */
+                run = SHOW_UBITS(re, gb, 6) + 1;
+                LAST_SKIP_BITS(re, gb, 6);
+                UPDATE_CACHE(re, gb);
+                level = SHOW_SBITS(re, gb, 8);
+                SKIP_BITS(re, gb, 8);
+
+                if (level == -128) {
+                    level = SHOW_UBITS(re, gb, 8) - 256;
+                    SKIP_BITS(re, gb, 8);
+                } else if (level == 0) {
+                    level = SHOW_UBITS(re, gb, 8);
+                    SKIP_BITS(re, gb, 8);
+                }
+
+                i += run;
+                if (i > MAX_INDEX)
+                    break;
+
+                j = scantable[i];
+                if (level < 0) {
+                    level = -level;
+                    level = (level * qscale * quant_matrix[j]) >> 4;
+                    level = (level - 1) | 1;
+                    level = -level;
+                } else {
+                    level = (level * qscale * quant_matrix[j]) >> 4;
+                    level = (level - 1) | 1;
+                }
+            }
+
+            block[j] = level;
+            if (((int32_t)GET_CACHE(re, gb)) <= (int32_t)0xBFFFFFFF)
+               break;
+
+            UPDATE_CACHE(re, gb);
+        }
+end:
+        LAST_SKIP_BITS(re, gb, 2);
+        CLOSE_READER(re, gb);
+    }
+
+    if (i > MAX_INDEX)
+        i = AVERROR_INVALIDDATA;
+
+    return i;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12.h
new file mode 100644
index 000000000..1ec99f17e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12.h
@@ -0,0 +1,80 @@
+/*
+ * MPEG-1/2 common code
+ * Copyright (c) 2007 Aurelien Jacobs <aurel@gnuage.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MPEG12_H
+#define AVCODEC_MPEG12_H
+
+#include "mpeg12vlc.h"
+#include "mpegvideo.h"
+
+extern uint8_t ff_mpeg12_static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3];
+
+void ff_mpeg12_common_init(MpegEncContext *s);
+
+#define INIT_2D_VLC_RL(rl, static_size, flags)\
+{\
+    static RL_VLC_ELEM rl_vlc_table[static_size];\
+    rl.rl_vlc[0] = rl_vlc_table;\
+    ff_init_2d_vlc_rl(&rl, static_size, flags);\
+}
+
+void ff_init_2d_vlc_rl(RLTable *rl, unsigned static_size, int flags);
+
+static inline int decode_dc(GetBitContext *gb, int component)
+{
+    int code, diff;
+
+    if (component == 0) {
+        code = get_vlc2(gb, ff_dc_lum_vlc.table, DC_VLC_BITS, 2);
+    } else {
+        code = get_vlc2(gb, ff_dc_chroma_vlc.table, DC_VLC_BITS, 2);
+    }
+    if (code < 0){
+        av_log(NULL, AV_LOG_ERROR, "invalid dc code at\n");
+        return 0xffff;
+    }
+    if (code == 0) {
+        diff = 0;
+    } else {
+        diff = get_xbits(gb, code);
+    }
+    return diff;
+}
+
+int ff_mpeg1_decode_block_intra(GetBitContext *gb,
+                                const uint16_t *quant_matrix,
+                                uint8_t *const scantable, int last_dc[3],
+                                int16_t *block, int index, int qscale);
+
+void ff_mpeg1_clean_buffers(MpegEncContext *s);
+int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s);
+
+void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
+void ff_mpeg1_encode_mb(MpegEncContext *s, int16_t block[8][64],
+                        int motion_x, int motion_y);
+void ff_mpeg1_encode_init(MpegEncContext *s);
+void ff_mpeg1_encode_slice_header(MpegEncContext *s);
+
+void ff_mpeg12_find_best_frame_rate(AVRational frame_rate,
+                                    int *code, int *ext_n, int *ext_d,
+                                    int nonstandard);
+
+#endif /* AVCODEC_MPEG12_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12data.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12data.c
new file mode 100644
index 000000000..4da96d7da
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12data.c
@@ -0,0 +1,412 @@
+/*
+ * MPEG-1/2 tables
+ * copyright (c) 2000,2001 Fabrice Bellard
+ * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * MPEG-1/2 tables.
+ */
+
+#include "mpeg12data.h"
+
+const uint16_t ff_mpeg1_default_intra_matrix[256] = {
+        8, 16, 19, 22, 26, 27, 29, 34,
+        16, 16, 22, 24, 27, 29, 34, 37,
+        19, 22, 26, 27, 29, 34, 34, 38,
+        22, 22, 26, 27, 29, 34, 37, 40,
+        22, 26, 27, 29, 32, 35, 40, 48,
+        26, 27, 29, 32, 35, 40, 48, 58,
+        26, 27, 29, 34, 38, 46, 56, 69,
+        27, 29, 35, 38, 46, 56, 69, 83
+};
+
+const uint16_t ff_mpeg1_default_non_intra_matrix[64] = {
+    16, 16, 16, 16, 16, 16, 16, 16,
+    16, 16, 16, 16, 16, 16, 16, 16,
+    16, 16, 16, 16, 16, 16, 16, 16,
+    16, 16, 16, 16, 16, 16, 16, 16,
+    16, 16, 16, 16, 16, 16, 16, 16,
+    16, 16, 16, 16, 16, 16, 16, 16,
+    16, 16, 16, 16, 16, 16, 16, 16,
+    16, 16, 16, 16, 16, 16, 16, 16,
+};
+
+const uint16_t ff_mpeg12_vlc_dc_lum_code[12] = {
+    0x4, 0x0, 0x1, 0x5, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x1ff,
+};
+const unsigned char ff_mpeg12_vlc_dc_lum_bits[12] = {
+    3, 2, 2, 3, 3, 4, 5, 6, 7, 8, 9, 9,
+};
+
+const uint16_t ff_mpeg12_vlc_dc_chroma_code[12] = {
+    0x0, 0x1, 0x2, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x3fe, 0x3ff,
+};
+const unsigned char ff_mpeg12_vlc_dc_chroma_bits[12] = {
+    2, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10,
+};
+
+static const uint16_t mpeg1_vlc[113][2] = {
+ { 0x3, 2 }, { 0x4, 4 }, { 0x5, 5 }, { 0x6, 7 },
+ { 0x26, 8 }, { 0x21, 8 }, { 0xa, 10 }, { 0x1d, 12 },
+ { 0x18, 12 }, { 0x13, 12 }, { 0x10, 12 }, { 0x1a, 13 },
+ { 0x19, 13 }, { 0x18, 13 }, { 0x17, 13 }, { 0x1f, 14 },
+ { 0x1e, 14 }, { 0x1d, 14 }, { 0x1c, 14 }, { 0x1b, 14 },
+ { 0x1a, 14 }, { 0x19, 14 }, { 0x18, 14 }, { 0x17, 14 },
+ { 0x16, 14 }, { 0x15, 14 }, { 0x14, 14 }, { 0x13, 14 },
+ { 0x12, 14 }, { 0x11, 14 }, { 0x10, 14 }, { 0x18, 15 },
+ { 0x17, 15 }, { 0x16, 15 }, { 0x15, 15 }, { 0x14, 15 },
+ { 0x13, 15 }, { 0x12, 15 }, { 0x11, 15 }, { 0x10, 15 },
+ { 0x3, 3 }, { 0x6, 6 }, { 0x25, 8 }, { 0xc, 10 },
+ { 0x1b, 12 }, { 0x16, 13 }, { 0x15, 13 }, { 0x1f, 15 },
+ { 0x1e, 15 }, { 0x1d, 15 }, { 0x1c, 15 }, { 0x1b, 15 },
+ { 0x1a, 15 }, { 0x19, 15 }, { 0x13, 16 }, { 0x12, 16 },
+ { 0x11, 16 }, { 0x10, 16 }, { 0x5, 4 }, { 0x4, 7 },
+ { 0xb, 10 }, { 0x14, 12 }, { 0x14, 13 }, { 0x7, 5 },
+ { 0x24, 8 }, { 0x1c, 12 }, { 0x13, 13 }, { 0x6, 5 },
+ { 0xf, 10 }, { 0x12, 12 }, { 0x7, 6 }, { 0x9, 10 },
+ { 0x12, 13 }, { 0x5, 6 }, { 0x1e, 12 }, { 0x14, 16 },
+ { 0x4, 6 }, { 0x15, 12 }, { 0x7, 7 }, { 0x11, 12 },
+ { 0x5, 7 }, { 0x11, 13 }, { 0x27, 8 }, { 0x10, 13 },
+ { 0x23, 8 }, { 0x1a, 16 }, { 0x22, 8 }, { 0x19, 16 },
+ { 0x20, 8 }, { 0x18, 16 }, { 0xe, 10 }, { 0x17, 16 },
+ { 0xd, 10 }, { 0x16, 16 }, { 0x8, 10 }, { 0x15, 16 },
+ { 0x1f, 12 }, { 0x1a, 12 }, { 0x19, 12 }, { 0x17, 12 },
+ { 0x16, 12 }, { 0x1f, 13 }, { 0x1e, 13 }, { 0x1d, 13 },
+ { 0x1c, 13 }, { 0x1b, 13 }, { 0x1f, 16 }, { 0x1e, 16 },
+ { 0x1d, 16 }, { 0x1c, 16 }, { 0x1b, 16 },
+ { 0x1, 6 }, /* escape */
+ { 0x2, 2 }, /* EOB */
+};
+
+static const uint16_t mpeg2_vlc[113][2] = {
+  {0x02, 2}, {0x06, 3}, {0x07, 4}, {0x1c, 5},
+  {0x1d, 5}, {0x05, 6}, {0x04, 6}, {0x7b, 7},
+  {0x7c, 7}, {0x23, 8}, {0x22, 8}, {0xfa, 8},
+  {0xfb, 8}, {0xfe, 8}, {0xff, 8}, {0x1f,14},
+  {0x1e,14}, {0x1d,14}, {0x1c,14}, {0x1b,14},
+  {0x1a,14}, {0x19,14}, {0x18,14}, {0x17,14},
+  {0x16,14}, {0x15,14}, {0x14,14}, {0x13,14},
+  {0x12,14}, {0x11,14}, {0x10,14}, {0x18,15},
+  {0x17,15}, {0x16,15}, {0x15,15}, {0x14,15},
+  {0x13,15}, {0x12,15}, {0x11,15}, {0x10,15},
+  {0x02, 3}, {0x06, 5}, {0x79, 7}, {0x27, 8},
+  {0x20, 8}, {0x16,13}, {0x15,13}, {0x1f,15},
+  {0x1e,15}, {0x1d,15}, {0x1c,15}, {0x1b,15},
+  {0x1a,15}, {0x19,15}, {0x13,16}, {0x12,16},
+  {0x11,16}, {0x10,16}, {0x05, 5}, {0x07, 7},
+  {0xfc, 8}, {0x0c,10}, {0x14,13}, {0x07, 5},
+  {0x26, 8}, {0x1c,12}, {0x13,13}, {0x06, 6},
+  {0xfd, 8}, {0x12,12}, {0x07, 6}, {0x04, 9},
+  {0x12,13}, {0x06, 7}, {0x1e,12}, {0x14,16},
+  {0x04, 7}, {0x15,12}, {0x05, 7}, {0x11,12},
+  {0x78, 7}, {0x11,13}, {0x7a, 7}, {0x10,13},
+  {0x21, 8}, {0x1a,16}, {0x25, 8}, {0x19,16},
+  {0x24, 8}, {0x18,16}, {0x05, 9}, {0x17,16},
+  {0x07, 9}, {0x16,16}, {0x0d,10}, {0x15,16},
+  {0x1f,12}, {0x1a,12}, {0x19,12}, {0x17,12},
+  {0x16,12}, {0x1f,13}, {0x1e,13}, {0x1d,13},
+  {0x1c,13}, {0x1b,13}, {0x1f,16}, {0x1e,16},
+  {0x1d,16}, {0x1c,16}, {0x1b,16},
+  {0x01,6}, /* escape */
+  {0x06,4}, /* EOB */
+};
+
+static const int8_t mpeg1_level[111] = {
+  1,  2,  3,  4,  5,  6,  7,  8,
+  9, 10, 11, 12, 13, 14, 15, 16,
+ 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 26, 27, 28, 29, 30, 31, 32,
+ 33, 34, 35, 36, 37, 38, 39, 40,
+  1,  2,  3,  4,  5,  6,  7,  8,
+  9, 10, 11, 12, 13, 14, 15, 16,
+ 17, 18,  1,  2,  3,  4,  5,  1,
+  2,  3,  4,  1,  2,  3,  1,  2,
+  3,  1,  2,  3,  1,  2,  1,  2,
+  1,  2,  1,  2,  1,  2,  1,  2,
+  1,  2,  1,  2,  1,  2,  1,  2,
+  1,  1,  1,  1,  1,  1,  1,  1,
+  1,  1,  1,  1,  1,  1,  1,
+};
+
+static const int8_t mpeg1_run[111] = {
+  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,
+  1,  1,  1,  1,  1,  1,  1,  1,
+  1,  1,  1,  1,  1,  1,  1,  1,
+  1,  1,  2,  2,  2,  2,  2,  3,
+  3,  3,  3,  4,  4,  4,  5,  5,
+  5,  6,  6,  6,  7,  7,  8,  8,
+  9,  9, 10, 10, 11, 11, 12, 12,
+ 13, 13, 14, 14, 15, 15, 16, 16,
+ 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 26, 27, 28, 29, 30, 31,
+};
+
+RLTable ff_rl_mpeg1 = {
+    111,
+    111,
+    mpeg1_vlc,
+    mpeg1_run,
+    mpeg1_level,
+};
+
+RLTable ff_rl_mpeg2 = {
+    111,
+    111,
+    mpeg2_vlc,
+    mpeg1_run,
+    mpeg1_level,
+};
+
+const uint8_t ff_mpeg12_mbAddrIncrTable[36][2] = {
+    {0x1, 1},
+    {0x3, 3},
+    {0x2, 3},
+    {0x3, 4},
+    {0x2, 4},
+    {0x3, 5},
+    {0x2, 5},
+    {0x7, 7},
+    {0x6, 7},
+    {0xb, 8},
+    {0xa, 8},
+    {0x9, 8},
+    {0x8, 8},
+    {0x7, 8},
+    {0x6, 8},
+    {0x17, 10},
+    {0x16, 10},
+    {0x15, 10},
+    {0x14, 10},
+    {0x13, 10},
+    {0x12, 10},
+    {0x23, 11},
+    {0x22, 11},
+    {0x21, 11},
+    {0x20, 11},
+    {0x1f, 11},
+    {0x1e, 11},
+    {0x1d, 11},
+    {0x1c, 11},
+    {0x1b, 11},
+    {0x1a, 11},
+    {0x19, 11},
+    {0x18, 11},
+    {0x8, 11}, /* escape */
+    {0xf, 11}, /* stuffing */
+    {0x0, 8}, /* end (and 15 more 0 bits should follow) */
+};
+
+const uint8_t ff_mpeg12_mbPatTable[64][2] = {
+    {0x1, 9},
+    {0xb, 5},
+    {0x9, 5},
+    {0xd, 6},
+    {0xd, 4},
+    {0x17, 7},
+    {0x13, 7},
+    {0x1f, 8},
+    {0xc, 4},
+    {0x16, 7},
+    {0x12, 7},
+    {0x1e, 8},
+    {0x13, 5},
+    {0x1b, 8},
+    {0x17, 8},
+    {0x13, 8},
+    {0xb, 4},
+    {0x15, 7},
+    {0x11, 7},
+    {0x1d, 8},
+    {0x11, 5},
+    {0x19, 8},
+    {0x15, 8},
+    {0x11, 8},
+    {0xf, 6},
+    {0xf, 8},
+    {0xd, 8},
+    {0x3, 9},
+    {0xf, 5},
+    {0xb, 8},
+    {0x7, 8},
+    {0x7, 9},
+    {0xa, 4},
+    {0x14, 7},
+    {0x10, 7},
+    {0x1c, 8},
+    {0xe, 6},
+    {0xe, 8},
+    {0xc, 8},
+    {0x2, 9},
+    {0x10, 5},
+    {0x18, 8},
+    {0x14, 8},
+    {0x10, 8},
+    {0xe, 5},
+    {0xa, 8},
+    {0x6, 8},
+    {0x6, 9},
+    {0x12, 5},
+    {0x1a, 8},
+    {0x16, 8},
+    {0x12, 8},
+    {0xd, 5},
+    {0x9, 8},
+    {0x5, 8},
+    {0x5, 9},
+    {0xc, 5},
+    {0x8, 8},
+    {0x4, 8},
+    {0x4, 9},
+    {0x7, 3},
+    {0xa, 5},
+    {0x8, 5},
+    {0xc, 6}
+};
+
+const uint8_t ff_mpeg12_mbMotionVectorTable[17][2] = {
+{ 0x1, 1 },
+{ 0x1, 2 },
+{ 0x1, 3 },
+{ 0x1, 4 },
+{ 0x3, 6 },
+{ 0x5, 7 },
+{ 0x4, 7 },
+{ 0x3, 7 },
+{ 0xb, 9 },
+{ 0xa, 9 },
+{ 0x9, 9 },
+{ 0x11, 10 },
+{ 0x10, 10 },
+{ 0xf, 10 },
+{ 0xe, 10 },
+{ 0xd, 10 },
+{ 0xc, 10 },
+};
+
+const AVRational ff_mpeg2_frame_rate_tab[] = {
+    {      1,     1},
+    {      2,     1},
+    {      3,     1},
+    {      4,     1},
+    {      5,     1},
+    {      6,     1},
+    {      8,     1},
+    {      9,     1},
+    {     10,     1},
+    {     12,     1},
+    {     15,     1},
+    {     16,     1},
+    {     18,     1},
+    {     20,     1},
+    {     24,     1},
+    {     25,     1},
+    {     30,     1},
+    {     32,     1},
+    {     36,     1},
+    {     40,     1},
+    {     45,     1},
+    {     48,     1},
+    {     50,     1},
+    {     60,     1},
+    {     72,     1},
+    {     75,     1},
+    {     80,     1},
+    {     90,     1},
+    {     96,     1},
+    {    100,     1},
+    {    120,     1},
+    {    150,     1},
+    {    180,     1},
+    {    200,     1},
+    {    240,     1},
+    {    750,  1001},
+    {    800,  1001},
+    {    960,  1001},
+    {   1000,  1001},
+    {   1200,  1001},
+    {   1250,  1001},
+    {   1500,  1001},
+    {   1600,  1001},
+    {   1875,  1001},
+    {   2000,  1001},
+    {   2400,  1001},
+    {   2500,  1001},
+    {   3000,  1001},
+    {   3750,  1001},
+    {   4000,  1001},
+    {   4800,  1001},
+    {   5000,  1001},
+    {   6000,  1001},
+    {   7500,  1001},
+    {   8000,  1001},
+    {  10000,  1001},
+    {  12000,  1001},
+    {  15000,  1001},
+    {  20000,  1001},
+    {  24000,  1001},
+    {  30000,  1001},
+    {  60000,  1001},
+    {      0,     0},
+};
+
+const float ff_mpeg1_aspect[16]={
+    0.0000,
+    1.0000,
+    0.6735,
+    0.7031,
+
+    0.7615,
+    0.8055,
+    0.8437,
+    0.8935,
+
+    0.9157,
+    0.9815,
+    1.0255,
+    1.0695,
+
+    1.0950,
+    1.1575,
+    1.2015,
+};
+
+const AVRational ff_mpeg2_aspect[16]={
+    {0,1},
+    {1,1},
+    {4,3},
+    {16,9},
+    {221,100},
+    {0,1},
+    {0,1},
+    {0,1},
+    {0,1},
+    {0,1},
+    {0,1},
+    {0,1},
+    {0,1},
+    {0,1},
+    {0,1},
+    {0,1},
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12data.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12data.h
new file mode 100644
index 000000000..f51faf460
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12data.h
@@ -0,0 +1,57 @@
+/*
+ * MPEG-1/2 tables
+ * copyright (c) 2000,2001 Fabrice Bellard
+ * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * MPEG-1/2 tables.
+ */
+
+#ifndef AVCODEC_MPEG12DATA_H
+#define AVCODEC_MPEG12DATA_H
+
+#include <stdint.h>
+#include "libavutil/rational.h"
+#include "rl.h"
+
+extern const uint16_t ff_mpeg1_default_intra_matrix[];
+extern const uint16_t ff_mpeg1_default_non_intra_matrix[64];
+
+extern const uint16_t ff_mpeg12_vlc_dc_lum_code[12];
+extern const unsigned char ff_mpeg12_vlc_dc_lum_bits[12];
+extern const uint16_t ff_mpeg12_vlc_dc_chroma_code[12];
+extern const unsigned char ff_mpeg12_vlc_dc_chroma_bits[12];
+
+extern RLTable ff_rl_mpeg1;
+extern RLTable ff_rl_mpeg2;
+
+extern const uint8_t ff_mpeg12_mbAddrIncrTable[36][2];
+extern const uint8_t ff_mpeg12_mbPatTable[64][2];
+
+extern const uint8_t ff_mpeg12_mbMotionVectorTable[17][2];
+
+extern const AVRational ff_mpeg12_frame_rate_tab[];
+extern const AVRational ff_mpeg2_frame_rate_tab[];
+
+extern const float ff_mpeg1_aspect[16];
+extern const AVRational ff_mpeg2_aspect[16];
+
+#endif /* AVCODEC_MPEG12DATA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12framerate.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12framerate.c
new file mode 100644
index 000000000..ab3d35117
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12framerate.c
@@ -0,0 +1,103 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/rational.h"
+
+#include "mpeg12.h"
+#include "mpeg12data.h"
+
+const AVRational ff_mpeg12_frame_rate_tab[16] = {
+    {    0,    0},
+    {24000, 1001},
+    {   24,    1},
+    {   25,    1},
+    {30000, 1001},
+    {   30,    1},
+    {   50,    1},
+    {60000, 1001},
+    {   60,    1},
+  // Xing's 15fps: (9)
+    {   15,    1},
+  // libmpeg3's "Unofficial economy rates": (10-13)
+    {    5,    1},
+    {   10,    1},
+    {   12,    1},
+    {   15,    1},
+    {    0,    0},
+};
+
+void ff_mpeg12_find_best_frame_rate(AVRational frame_rate,
+                                    int *code, int *ext_n, int *ext_d,
+                                    int nonstandard)
+{
+    int mpeg2 = ext_n && ext_d;
+    int max_code = nonstandard ? 12 : 8;
+    int c, n, d, best_c, best_n, best_d;
+    AVRational best_error = { INT_MAX, 1 };
+
+    // Default to NTSC if the inputs make no sense.
+    best_c = 4;
+    best_n = best_d = 1;
+
+    for (c = 1; c <= max_code; c++) {
+        if (av_cmp_q(frame_rate, ff_mpeg12_frame_rate_tab[c]) == 0) {
+            best_c = c;
+            goto found;
+        }
+    }
+
+    for (c = 1; c <= max_code; c++) {
+        for (n = 1; n <= (mpeg2 ? 4 : 1); n++) {
+            for (d = 1; d <= (mpeg2 ? 32 : 1); d++) {
+                AVRational test, error;
+                int cmp;
+
+                test = av_mul_q(ff_mpeg12_frame_rate_tab[c],
+                                (AVRational) { n, d });
+
+                cmp = av_cmp_q(test, frame_rate);
+                if (cmp == 0) {
+                    best_c = c;
+                    best_n = n;
+                    best_d = d;
+                    goto found;
+                }
+
+                if (cmp < 0)
+                    error = av_div_q(frame_rate, test);
+                else
+                    error = av_div_q(test, frame_rate);
+
+                cmp = av_cmp_q(error, best_error);
+                if (cmp < 0 || (cmp == 0 && n == 1 && d == 1)) {
+                    best_c = c;
+                    best_n = n;
+                    best_d = d;
+                    best_error = error;
+                }
+            }
+        }
+    }
+
+found:
+    *code = best_c;
+    if (mpeg2) {
+        *ext_n = best_n - 1;
+        *ext_d = best_d - 1;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12vlc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12vlc.h
new file mode 100644
index 000000000..c5abae96b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg12vlc.h
@@ -0,0 +1,52 @@
+/*
+ * MPEG-1/2 VLC
+ * copyright (c) 2000,2001 Fabrice Bellard
+ * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * MPEG-1/2 VLC.
+ */
+
+#ifndef AVCODEC_MPEG12VLC_H
+#define AVCODEC_MPEG12VLC_H
+
+#include "vlc.h"
+
+#define DC_VLC_BITS 9
+#define MV_VLC_BITS 9
+#define TEX_VLC_BITS 9
+
+#define MBINCR_VLC_BITS 9
+#define MB_PAT_VLC_BITS 9
+#define MB_PTYPE_VLC_BITS 6
+#define MB_BTYPE_VLC_BITS 6
+
+extern VLC ff_dc_lum_vlc;
+extern VLC ff_dc_chroma_vlc;
+extern VLC ff_mbincr_vlc;
+extern VLC ff_mb_ptype_vlc;
+extern VLC ff_mb_btype_vlc;
+extern VLC ff_mb_pat_vlc;
+extern VLC ff_mv_vlc;
+
+void ff_mpeg12_init_vlcs(void);
+
+#endif /* AVCODEC_MPEG12VLC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg4audio.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg4audio.c
new file mode 100644
index 000000000..219714752
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg4audio.c
@@ -0,0 +1,169 @@
+/*
+ * MPEG-4 Audio common code
+ * Copyright (c) 2008 Baptiste Coudurier <baptiste.coudurier@free.fr>
+ * Copyright (c) 2009 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "get_bits.h"
+#include "put_bits.h"
+#include "mpeg4audio.h"
+
+/**
+ * Parse MPEG-4 audio configuration for ALS object type.
+ * @param[in] gb       bit reader context
+ * @param[in] c        MPEG4AudioConfig structure to fill
+ * @return on success 0 is returned, otherwise a value < 0
+ */
+static int parse_config_ALS(GetBitContext *gb, MPEG4AudioConfig *c)
+{
+    if (get_bits_left(gb) < 112)
+        return AVERROR_INVALIDDATA;
+
+    if (get_bits_long(gb, 32) != MKBETAG('A','L','S','\0'))
+        return AVERROR_INVALIDDATA;
+
+    // override AudioSpecificConfig channel configuration and sample rate
+    // which are buggy in old ALS conformance files
+    c->sample_rate = get_bits_long(gb, 32);
+
+    if (c->sample_rate <= 0) {
+        av_log(NULL, AV_LOG_ERROR, "Invalid sample rate %d\n", c->sample_rate);
+        return AVERROR_INVALIDDATA;
+    }
+
+    // skip number of samples
+    skip_bits_long(gb, 32);
+
+    // read number of channels
+    c->chan_config = 0;
+    c->channels    = get_bits(gb, 16) + 1;
+
+    return 0;
+}
+
+/* XXX: make sure to update the copies in the different encoders if you change
+ * this table */
+const int avpriv_mpeg4audio_sample_rates[16] = {
+    96000, 88200, 64000, 48000, 44100, 32000,
+    24000, 22050, 16000, 12000, 11025, 8000, 7350
+};
+
+const uint8_t ff_mpeg4audio_channels[8] = {
+    0, 1, 2, 3, 4, 5, 6, 8
+};
+
+static inline int get_object_type(GetBitContext *gb)
+{
+    int object_type = get_bits(gb, 5);
+    if (object_type == AOT_ESCAPE)
+        object_type = 32 + get_bits(gb, 6);
+    return object_type;
+}
+
+static inline int get_sample_rate(GetBitContext *gb, int *index)
+{
+    *index = get_bits(gb, 4);
+    return *index == 0x0f ? get_bits(gb, 24) :
+        avpriv_mpeg4audio_sample_rates[*index];
+}
+
+int ff_mpeg4audio_get_config_gb(MPEG4AudioConfig *c, GetBitContext *gb,
+                                int sync_extension)
+{
+    int specific_config_bitindex, ret;
+    int start_bit_index = get_bits_count(gb);
+    c->object_type = get_object_type(gb);
+    c->sample_rate = get_sample_rate(gb, &c->sampling_index);
+    c->chan_config = get_bits(gb, 4);
+    if (c->chan_config < FF_ARRAY_ELEMS(ff_mpeg4audio_channels))
+        c->channels = ff_mpeg4audio_channels[c->chan_config];
+    c->sbr = -1;
+    c->ps  = -1;
+    if (c->object_type == AOT_SBR || (c->object_type == AOT_PS &&
+        // check for W6132 Annex YYYY draft MP3onMP4
+        !(show_bits(gb, 3) & 0x03 && !(show_bits(gb, 9) & 0x3F)))) {
+        if (c->object_type == AOT_PS)
+            c->ps = 1;
+        c->ext_object_type = AOT_SBR;
+        c->sbr = 1;
+        c->ext_sample_rate = get_sample_rate(gb, &c->ext_sampling_index);
+        c->object_type = get_object_type(gb);
+        if (c->object_type == AOT_ER_BSAC)
+            c->ext_chan_config = get_bits(gb, 4);
+    } else {
+        c->ext_object_type = AOT_NULL;
+        c->ext_sample_rate = 0;
+    }
+    specific_config_bitindex = get_bits_count(gb);
+
+    if (c->object_type == AOT_ALS) {
+        skip_bits(gb, 5);
+        if (show_bits_long(gb, 24) != MKBETAG('\0','A','L','S'))
+            skip_bits_long(gb, 24);
+
+        specific_config_bitindex = get_bits_count(gb);
+
+        ret = parse_config_ALS(gb, c);
+        if (ret < 0)
+            return ret;
+    }
+
+    if (c->ext_object_type != AOT_SBR && sync_extension) {
+        while (get_bits_left(gb) > 15) {
+            if (show_bits(gb, 11) == 0x2b7) { // sync extension
+                get_bits(gb, 11);
+                c->ext_object_type = get_object_type(gb);
+                if (c->ext_object_type == AOT_SBR && (c->sbr = get_bits1(gb)) == 1) {
+                    c->ext_sample_rate = get_sample_rate(gb, &c->ext_sampling_index);
+                    if (c->ext_sample_rate == c->sample_rate)
+                        c->sbr = -1;
+                }
+                if (get_bits_left(gb) > 11 && get_bits(gb, 11) == 0x548)
+                    c->ps = get_bits1(gb);
+                break;
+            } else
+                get_bits1(gb); // skip 1 bit
+        }
+    }
+
+    //PS requires SBR
+    if (!c->sbr)
+        c->ps = 0;
+    //Limit implicit PS to the HE-AACv2 Profile
+    if ((c->ps == -1 && c->object_type != AOT_AAC_LC) || c->channels & ~0x01)
+        c->ps = 0;
+
+    return specific_config_bitindex - start_bit_index;
+}
+
+int avpriv_mpeg4audio_get_config(MPEG4AudioConfig *c, const uint8_t *buf,
+                                 int bit_size, int sync_extension)
+{
+    GetBitContext gb;
+    int ret;
+
+    if (bit_size <= 0)
+        return AVERROR_INVALIDDATA;
+
+    ret = init_get_bits(&gb, buf, bit_size);
+    if (ret < 0)
+        return ret;
+
+    return ff_mpeg4audio_get_config_gb(c, &gb, sync_extension);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg4audio.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg4audio.h
new file mode 100644
index 000000000..b9cea8af1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpeg4audio.h
@@ -0,0 +1,162 @@
+/*
+ * MPEG-4 Audio common header
+ * Copyright (c) 2008 Baptiste Coudurier <baptiste.coudurier@free.fr>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MPEG4AUDIO_H
+#define AVCODEC_MPEG4AUDIO_H
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+
+#include "get_bits.h"
+#include "internal.h"
+#include "put_bits.h"
+
+typedef struct MPEG4AudioConfig {
+    int object_type;
+    int sampling_index;
+    int sample_rate;
+    int chan_config;
+    int sbr; ///< -1 implicit, 1 presence
+    int ext_object_type;
+    int ext_sampling_index;
+    int ext_sample_rate;
+    int ext_chan_config;
+    int channels;
+    int ps;  ///< -1 implicit, 1 presence
+    int frame_length_short;
+} MPEG4AudioConfig;
+
+extern av_export_avcodec const int avpriv_mpeg4audio_sample_rates[16];
+extern const uint8_t ff_mpeg4audio_channels[8];
+
+/**
+ * Parse MPEG-4 systems extradata from a potentially unaligned GetBitContext to retrieve audio configuration.
+ * @param[in] c        MPEG4AudioConfig structure to fill.
+ * @param[in] gb       Extradata from container.
+ * @param[in] sync_extension look for a sync extension after config if true.
+ * @return On error -1 is returned, on success AudioSpecificConfig bit index in extradata.
+ */
+int ff_mpeg4audio_get_config_gb(MPEG4AudioConfig *c, GetBitContext *gb,
+                                int sync_extension);
+
+/**
+ * Parse MPEG-4 systems extradata from a raw buffer to retrieve audio configuration.
+ * @param[in] c        MPEG4AudioConfig structure to fill.
+ * @param[in] buf      Extradata from container.
+ * @param[in] bit_size Extradata size in bits.
+ * @param[in] sync_extension look for a sync extension after config if true.
+ * @return On error -1 is returned, on success AudioSpecificConfig bit index in extradata.
+ */
+int avpriv_mpeg4audio_get_config(MPEG4AudioConfig *c, const uint8_t *buf,
+                                 int bit_size, int sync_extension);
+
+enum AudioObjectType {
+    AOT_NULL,
+                               // Support?                Name
+    AOT_AAC_MAIN,              ///< Y                       Main
+    AOT_AAC_LC,                ///< Y                       Low Complexity
+    AOT_AAC_SSR,               ///< N (code in SoC repo)    Scalable Sample Rate
+    AOT_AAC_LTP,               ///< Y                       Long Term Prediction
+    AOT_SBR,                   ///< Y                       Spectral Band Replication
+    AOT_AAC_SCALABLE,          ///< N                       Scalable
+    AOT_TWINVQ,                ///< N                       Twin Vector Quantizer
+    AOT_CELP,                  ///< N                       Code Excited Linear Prediction
+    AOT_HVXC,                  ///< N                       Harmonic Vector eXcitation Coding
+    AOT_TTSI             = 12, ///< N                       Text-To-Speech Interface
+    AOT_MAINSYNTH,             ///< N                       Main Synthesis
+    AOT_WAVESYNTH,             ///< N                       Wavetable Synthesis
+    AOT_MIDI,                  ///< N                       General MIDI
+    AOT_SAFX,                  ///< N                       Algorithmic Synthesis and Audio Effects
+    AOT_ER_AAC_LC,             ///< N                       Error Resilient Low Complexity
+    AOT_ER_AAC_LTP       = 19, ///< N                       Error Resilient Long Term Prediction
+    AOT_ER_AAC_SCALABLE,       ///< N                       Error Resilient Scalable
+    AOT_ER_TWINVQ,             ///< N                       Error Resilient Twin Vector Quantizer
+    AOT_ER_BSAC,               ///< N                       Error Resilient Bit-Sliced Arithmetic Coding
+    AOT_ER_AAC_LD,             ///< N                       Error Resilient Low Delay
+    AOT_ER_CELP,               ///< N                       Error Resilient Code Excited Linear Prediction
+    AOT_ER_HVXC,               ///< N                       Error Resilient Harmonic Vector eXcitation Coding
+    AOT_ER_HILN,               ///< N                       Error Resilient Harmonic and Individual Lines plus Noise
+    AOT_ER_PARAM,              ///< N                       Error Resilient Parametric
+    AOT_SSC,                   ///< N                       SinuSoidal Coding
+    AOT_PS,                    ///< N                       Parametric Stereo
+    AOT_SURROUND,              ///< N                       MPEG Surround
+    AOT_ESCAPE,                ///< Y                       Escape Value
+    AOT_L1,                    ///< Y                       Layer 1
+    AOT_L2,                    ///< Y                       Layer 2
+    AOT_L3,                    ///< Y                       Layer 3
+    AOT_DST,                   ///< N                       Direct Stream Transfer
+    AOT_ALS,                   ///< Y                       Audio LosslesS
+    AOT_SLS,                   ///< N                       Scalable LosslesS
+    AOT_SLS_NON_CORE,          ///< N                       Scalable LosslesS (non core)
+    AOT_ER_AAC_ELD,            ///< N                       Error Resilient Enhanced Low Delay
+    AOT_SMR_SIMPLE,            ///< N                       Symbolic Music Representation Simple
+    AOT_SMR_MAIN,              ///< N                       Symbolic Music Representation Main
+    AOT_USAC_NOSBR,            ///< N                       Unified Speech and Audio Coding (no SBR)
+    AOT_SAOC,                  ///< N                       Spatial Audio Object Coding
+    AOT_LD_SURROUND,           ///< N                       Low Delay MPEG Surround
+    AOT_USAC,                  ///< N                       Unified Speech and Audio Coding
+};
+
+#define MAX_PCE_SIZE 320 ///<Maximum size of a PCE including the 3-bit ID_PCE
+                         ///<marker and the comment
+
+static av_always_inline unsigned int ff_pce_copy_bits(PutBitContext *pb,
+                                                      GetBitContext *gb,
+                                                      int bits)
+{
+    unsigned int el = get_bits(gb, bits);
+    put_bits(pb, bits, el);
+    return el;
+}
+
+static inline int ff_copy_pce_data(PutBitContext *pb, GetBitContext *gb)
+{
+    int five_bit_ch, four_bit_ch, comment_size, bits;
+    int offset = put_bits_count(pb);
+
+    ff_pce_copy_bits(pb, gb, 10);               // Tag, Object Type, Frequency
+    five_bit_ch  = ff_pce_copy_bits(pb, gb, 4); // Front
+    five_bit_ch += ff_pce_copy_bits(pb, gb, 4); // Side
+    five_bit_ch += ff_pce_copy_bits(pb, gb, 4); // Back
+    four_bit_ch  = ff_pce_copy_bits(pb, gb, 2); // LFE
+    four_bit_ch += ff_pce_copy_bits(pb, gb, 3); // Data
+    five_bit_ch += ff_pce_copy_bits(pb, gb, 4); // Coupling
+    if (ff_pce_copy_bits(pb, gb, 1))            // Mono Mixdown
+        ff_pce_copy_bits(pb, gb, 4);
+    if (ff_pce_copy_bits(pb, gb, 1))            // Stereo Mixdown
+        ff_pce_copy_bits(pb, gb, 4);
+    if (ff_pce_copy_bits(pb, gb, 1))            // Matrix Mixdown
+        ff_pce_copy_bits(pb, gb, 3);
+    for (bits = five_bit_ch*5+four_bit_ch*4; bits > 16; bits -= 16)
+        ff_pce_copy_bits(pb, gb, 16);
+    if (bits)
+        ff_pce_copy_bits(pb, gb, bits);
+    avpriv_align_put_bits(pb);
+    align_get_bits(gb);
+    comment_size = ff_pce_copy_bits(pb, gb, 8);
+    for (; comment_size > 0; comment_size--)
+        ff_pce_copy_bits(pb, gb, 8);
+
+    return put_bits_count(pb) - offset;
+}
+
+#endif /* AVCODEC_MPEG4AUDIO_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegpicture.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegpicture.c
new file mode 100644
index 000000000..ecbd77d50
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegpicture.c
@@ -0,0 +1,483 @@
+/*
+ * Mpeg video formats-related picture management functions
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/avassert.h"
+#include "libavutil/common.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/imgutils.h"
+
+#include "avcodec.h"
+#include "motion_est.h"
+#include "mpegpicture.h"
+#include "mpegutils.h"
+
+static int make_tables_writable(Picture *pic)
+{
+    int ret, i;
+#define MAKE_WRITABLE(table) \
+do {\
+    if (pic->table &&\
+       (ret = av_buffer_make_writable(&pic->table)) < 0)\
+    return ret;\
+} while (0)
+
+    MAKE_WRITABLE(mb_var_buf);
+    MAKE_WRITABLE(mc_mb_var_buf);
+    MAKE_WRITABLE(mb_mean_buf);
+    MAKE_WRITABLE(mbskip_table_buf);
+    MAKE_WRITABLE(qscale_table_buf);
+    MAKE_WRITABLE(mb_type_buf);
+
+    for (i = 0; i < 2; i++) {
+        MAKE_WRITABLE(motion_val_buf[i]);
+        MAKE_WRITABLE(ref_index_buf[i]);
+    }
+
+    return 0;
+}
+
+int ff_mpeg_framesize_alloc(AVCodecContext *avctx, MotionEstContext *me,
+                            ScratchpadContext *sc, int linesize)
+{
+#   define EMU_EDGE_HEIGHT (4 * 70)
+    int alloc_size = FFALIGN(FFABS(linesize) + 64, 32);
+
+    if (avctx->hwaccel)
+        return 0;
+
+    if (linesize < 24) {
+        av_log(avctx, AV_LOG_ERROR, "Image too small, temporary buffers cannot function\n");
+        return AVERROR_PATCHWELCOME;
+    }
+
+    if (av_image_check_size2(alloc_size, EMU_EDGE_HEIGHT, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)
+        return AVERROR(ENOMEM);
+
+    // edge emu needs blocksize + filter length - 1
+    // (= 17x17 for  halfpel / 21x21 for H.264)
+    // VC-1 computes luma and chroma simultaneously and needs 19X19 + 9x9
+    // at uvlinesize. It supports only YUV420 so 24x24 is enough
+    // linesize * interlaced * MBsize
+    // we also use this buffer for encoding in encode_mb_internal() needig an additional 32 lines
+    FF_ALLOCZ_ARRAY_OR_GOTO(avctx, sc->edge_emu_buffer, alloc_size, EMU_EDGE_HEIGHT,
+                      fail);
+
+    FF_ALLOCZ_ARRAY_OR_GOTO(avctx, me->scratchpad, alloc_size, 4 * 16 * 2,
+                      fail)
+    me->temp            = me->scratchpad;
+    sc->rd_scratchpad   = me->scratchpad;
+    sc->b_scratchpad    = me->scratchpad;
+    sc->obmc_scratchpad = me->scratchpad + 16;
+
+    return 0;
+fail:
+    av_freep(&sc->edge_emu_buffer);
+    return AVERROR(ENOMEM);
+}
+
+/**
+ * Allocate a frame buffer
+ */
+static int alloc_frame_buffer(AVCodecContext *avctx,  Picture *pic,
+                              MotionEstContext *me, ScratchpadContext *sc,
+                              int chroma_x_shift, int chroma_y_shift,
+                              int linesize, int uvlinesize)
+{
+    int edges_needed = av_codec_is_encoder(avctx->codec);
+    int r, ret;
+
+    pic->tf.f = pic->f;
+    if (avctx->codec_id != AV_CODEC_ID_WMV3IMAGE &&
+        avctx->codec_id != AV_CODEC_ID_VC1IMAGE  &&
+        avctx->codec_id != AV_CODEC_ID_MSS2) {
+        if (edges_needed) {
+            pic->f->width  = avctx->width  + 2 * EDGE_WIDTH;
+            pic->f->height = avctx->height + 2 * EDGE_WIDTH;
+        }
+
+        r = ff_thread_get_buffer(avctx, &pic->tf,
+                                 pic->reference ? AV_GET_BUFFER_FLAG_REF : 0);
+    } else {
+        pic->f->width  = avctx->width;
+        pic->f->height = avctx->height;
+        pic->f->format = avctx->pix_fmt;
+        r = avcodec_default_get_buffer2(avctx, pic->f, 0);
+    }
+
+    if (r < 0 || !pic->f->buf[0]) {
+        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed (%d %p)\n",
+               r, pic->f->data[0]);
+        return -1;
+    }
+
+    if (edges_needed) {
+        int i;
+        for (i = 0; pic->f->data[i]; i++) {
+            int offset = (EDGE_WIDTH >> (i ? chroma_y_shift : 0)) *
+                         pic->f->linesize[i] +
+                         (EDGE_WIDTH >> (i ? chroma_x_shift : 0));
+            pic->f->data[i] += offset;
+        }
+        pic->f->width  = avctx->width;
+        pic->f->height = avctx->height;
+    }
+
+    if (avctx->hwaccel) {
+        assert(!pic->hwaccel_picture_private);
+        if (avctx->hwaccel->frame_priv_data_size) {
+            pic->hwaccel_priv_buf = av_buffer_allocz(avctx->hwaccel->frame_priv_data_size);
+            if (!pic->hwaccel_priv_buf) {
+                av_log(avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n");
+                return -1;
+            }
+            pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
+        }
+    }
+
+    if ((linesize   &&   linesize != pic->f->linesize[0]) ||
+        (uvlinesize && uvlinesize != pic->f->linesize[1])) {
+        av_log(avctx, AV_LOG_ERROR,
+               "get_buffer() failed (stride changed: linesize=%d/%d uvlinesize=%d/%d)\n",
+               linesize,   pic->f->linesize[0],
+               uvlinesize, pic->f->linesize[1]);
+        ff_mpeg_unref_picture(avctx, pic);
+        return -1;
+    }
+
+    if (av_pix_fmt_count_planes(pic->f->format) > 2 &&
+        pic->f->linesize[1] != pic->f->linesize[2]) {
+        av_log(avctx, AV_LOG_ERROR,
+               "get_buffer() failed (uv stride mismatch)\n");
+        ff_mpeg_unref_picture(avctx, pic);
+        return -1;
+    }
+
+    if (!sc->edge_emu_buffer &&
+        (ret = ff_mpeg_framesize_alloc(avctx, me, sc,
+                                       pic->f->linesize[0])) < 0) {
+        av_log(avctx, AV_LOG_ERROR,
+               "get_buffer() failed to allocate context scratch buffers.\n");
+        ff_mpeg_unref_picture(avctx, pic);
+        return ret;
+    }
+
+    return 0;
+}
+
+static int alloc_picture_tables(AVCodecContext *avctx, Picture *pic, int encoding, int out_format,
+                                int mb_stride, int mb_width, int mb_height, int b8_stride)
+{
+    const int big_mb_num    = mb_stride * (mb_height + 1) + 1;
+    const int mb_array_size = mb_stride * mb_height;
+    const int b8_array_size = b8_stride * mb_height * 2;
+    int i;
+
+
+    pic->mbskip_table_buf = av_buffer_allocz(mb_array_size + 2);
+    pic->qscale_table_buf = av_buffer_allocz(big_mb_num + mb_stride);
+    pic->mb_type_buf      = av_buffer_allocz((big_mb_num + mb_stride) *
+                                             sizeof(uint32_t));
+    if (!pic->mbskip_table_buf || !pic->qscale_table_buf || !pic->mb_type_buf)
+        return AVERROR(ENOMEM);
+
+    if (encoding) {
+        pic->mb_var_buf    = av_buffer_allocz(mb_array_size * sizeof(int16_t));
+        pic->mc_mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
+        pic->mb_mean_buf   = av_buffer_allocz(mb_array_size);
+        if (!pic->mb_var_buf || !pic->mc_mb_var_buf || !pic->mb_mean_buf)
+            return AVERROR(ENOMEM);
+    }
+
+    if (out_format == FMT_H263 || encoding ||
+#if FF_API_DEBUG_MV
+        avctx->debug_mv ||
+#endif
+        (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS)) {
+        int mv_size        = 2 * (b8_array_size + 4) * sizeof(int16_t);
+        int ref_index_size = 4 * mb_array_size;
+
+        for (i = 0; mv_size && i < 2; i++) {
+            pic->motion_val_buf[i] = av_buffer_allocz(mv_size);
+            pic->ref_index_buf[i]  = av_buffer_allocz(ref_index_size);
+            if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
+                return AVERROR(ENOMEM);
+        }
+    }
+
+    pic->alloc_mb_width  = mb_width;
+    pic->alloc_mb_height = mb_height;
+
+    return 0;
+}
+
+/**
+ * Allocate a Picture.
+ * The pixels are allocated/set by calling get_buffer() if shared = 0
+ */
+int ff_alloc_picture(AVCodecContext *avctx, Picture *pic, MotionEstContext *me,
+                     ScratchpadContext *sc, int shared, int encoding,
+                     int chroma_x_shift, int chroma_y_shift, int out_format,
+                     int mb_stride, int mb_width, int mb_height, int b8_stride,
+                     ptrdiff_t *linesize, ptrdiff_t *uvlinesize)
+{
+    int i, ret;
+
+    if (pic->qscale_table_buf)
+        if (   pic->alloc_mb_width  != mb_width
+            || pic->alloc_mb_height != mb_height)
+            ff_free_picture_tables(pic);
+
+    if (shared) {
+        av_assert0(pic->f->data[0]);
+        pic->shared = 1;
+    } else {
+        av_assert0(!pic->f->buf[0]);
+        if (alloc_frame_buffer(avctx, pic, me, sc,
+                               chroma_x_shift, chroma_y_shift,
+                               *linesize, *uvlinesize) < 0)
+            return -1;
+
+        *linesize   = pic->f->linesize[0];
+        *uvlinesize = pic->f->linesize[1];
+    }
+
+    if (!pic->qscale_table_buf)
+        ret = alloc_picture_tables(avctx, pic, encoding, out_format,
+                                   mb_stride, mb_width, mb_height, b8_stride);
+    else
+        ret = make_tables_writable(pic);
+    if (ret < 0)
+        goto fail;
+
+    if (encoding) {
+        pic->mb_var    = (uint16_t*)pic->mb_var_buf->data;
+        pic->mc_mb_var = (uint16_t*)pic->mc_mb_var_buf->data;
+        pic->mb_mean   = pic->mb_mean_buf->data;
+    }
+
+    pic->mbskip_table = pic->mbskip_table_buf->data;
+    pic->qscale_table = pic->qscale_table_buf->data + 2 * mb_stride + 1;
+    pic->mb_type      = (uint32_t*)pic->mb_type_buf->data + 2 * mb_stride + 1;
+
+    if (pic->motion_val_buf[0]) {
+        for (i = 0; i < 2; i++) {
+            pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
+            pic->ref_index[i]  = pic->ref_index_buf[i]->data;
+        }
+    }
+
+    return 0;
+fail:
+    av_log(avctx, AV_LOG_ERROR, "Error allocating a picture.\n");
+    ff_mpeg_unref_picture(avctx, pic);
+    ff_free_picture_tables(pic);
+    return AVERROR(ENOMEM);
+}
+
+/**
+ * Deallocate a picture.
+ */
+void ff_mpeg_unref_picture(AVCodecContext *avctx, Picture *pic)
+{
+    int off = offsetof(Picture, mb_mean) + sizeof(pic->mb_mean);
+
+    pic->tf.f = pic->f;
+    /* WM Image / Screen codecs allocate internal buffers with different
+     * dimensions / colorspaces; ignore user-defined callbacks for these. */
+    if (avctx->codec_id != AV_CODEC_ID_WMV3IMAGE &&
+        avctx->codec_id != AV_CODEC_ID_VC1IMAGE  &&
+        avctx->codec_id != AV_CODEC_ID_MSS2)
+        ff_thread_release_buffer(avctx, &pic->tf);
+    else if (pic->f)
+        av_frame_unref(pic->f);
+
+    av_buffer_unref(&pic->hwaccel_priv_buf);
+
+    if (pic->needs_realloc)
+        ff_free_picture_tables(pic);
+
+    memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
+}
+
+int ff_update_picture_tables(Picture *dst, Picture *src)
+{
+     int i;
+
+#define UPDATE_TABLE(table)                                                   \
+do {                                                                          \
+    if (src->table &&                                                         \
+        (!dst->table || dst->table->buffer != src->table->buffer)) {          \
+        av_buffer_unref(&dst->table);                                         \
+        dst->table = av_buffer_ref(src->table);                               \
+        if (!dst->table) {                                                    \
+            ff_free_picture_tables(dst);                                      \
+            return AVERROR(ENOMEM);                                           \
+        }                                                                     \
+    }                                                                         \
+} while (0)
+
+    UPDATE_TABLE(mb_var_buf);
+    UPDATE_TABLE(mc_mb_var_buf);
+    UPDATE_TABLE(mb_mean_buf);
+    UPDATE_TABLE(mbskip_table_buf);
+    UPDATE_TABLE(qscale_table_buf);
+    UPDATE_TABLE(mb_type_buf);
+    for (i = 0; i < 2; i++) {
+        UPDATE_TABLE(motion_val_buf[i]);
+        UPDATE_TABLE(ref_index_buf[i]);
+    }
+
+    dst->mb_var        = src->mb_var;
+    dst->mc_mb_var     = src->mc_mb_var;
+    dst->mb_mean       = src->mb_mean;
+    dst->mbskip_table  = src->mbskip_table;
+    dst->qscale_table  = src->qscale_table;
+    dst->mb_type       = src->mb_type;
+    for (i = 0; i < 2; i++) {
+        dst->motion_val[i] = src->motion_val[i];
+        dst->ref_index[i]  = src->ref_index[i];
+    }
+
+    dst->alloc_mb_width  = src->alloc_mb_width;
+    dst->alloc_mb_height = src->alloc_mb_height;
+
+    return 0;
+}
+
+int ff_mpeg_ref_picture(AVCodecContext *avctx, Picture *dst, Picture *src)
+{
+    int ret;
+
+    av_assert0(!dst->f->buf[0]);
+    av_assert0(src->f->buf[0]);
+
+    src->tf.f = src->f;
+    dst->tf.f = dst->f;
+    ret = ff_thread_ref_frame(&dst->tf, &src->tf);
+    if (ret < 0)
+        goto fail;
+
+    ret = ff_update_picture_tables(dst, src);
+    if (ret < 0)
+        goto fail;
+
+    if (src->hwaccel_picture_private) {
+        dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
+        if (!dst->hwaccel_priv_buf) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+        dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
+    }
+
+    dst->field_picture           = src->field_picture;
+    dst->mb_var_sum              = src->mb_var_sum;
+    dst->mc_mb_var_sum           = src->mc_mb_var_sum;
+    dst->b_frame_score           = src->b_frame_score;
+    dst->needs_realloc           = src->needs_realloc;
+    dst->reference               = src->reference;
+    dst->shared                  = src->shared;
+
+    memcpy(dst->encoding_error, src->encoding_error,
+           sizeof(dst->encoding_error));
+
+    return 0;
+fail:
+    ff_mpeg_unref_picture(avctx, dst);
+    return ret;
+}
+
+static inline int pic_is_unused(Picture *pic)
+{
+    if (!pic->f->buf[0])
+        return 1;
+    if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
+        return 1;
+    return 0;
+}
+
+static int find_unused_picture(AVCodecContext *avctx, Picture *picture, int shared)
+{
+    int i;
+
+    if (shared) {
+        for (i = 0; i < MAX_PICTURE_COUNT; i++) {
+            if (!picture[i].f->buf[0])
+                return i;
+        }
+    } else {
+        for (i = 0; i < MAX_PICTURE_COUNT; i++) {
+            if (pic_is_unused(&picture[i]))
+                return i;
+        }
+    }
+
+    av_log(avctx, AV_LOG_FATAL,
+           "Internal error, picture buffer overflow\n");
+    /* We could return -1, but the codec would crash trying to draw into a
+     * non-existing frame anyway. This is safer than waiting for a random crash.
+     * Also the return of this is never useful, an encoder must only allocate
+     * as much as allowed in the specification. This has no relationship to how
+     * much libavcodec could allocate (and MAX_PICTURE_COUNT is always large
+     * enough for such valid streams).
+     * Plus, a decoder has to check stream validity and remove frames if too
+     * many reference frames are around. Waiting for "OOM" is not correct at
+     * all. Similarly, missing reference frames have to be replaced by
+     * interpolated/MC frames, anything else is a bug in the codec ...
+     */
+    abort();
+    return -1;
+}
+
+int ff_find_unused_picture(AVCodecContext *avctx, Picture *picture, int shared)
+{
+    int ret = find_unused_picture(avctx, picture, shared);
+
+    if (ret >= 0 && ret < MAX_PICTURE_COUNT) {
+        if (picture[ret].needs_realloc) {
+            picture[ret].needs_realloc = 0;
+            ff_free_picture_tables(&picture[ret]);
+            ff_mpeg_unref_picture(avctx, &picture[ret]);
+        }
+    }
+    return ret;
+}
+
+void ff_free_picture_tables(Picture *pic)
+{
+    int i;
+
+    pic->alloc_mb_width  =
+    pic->alloc_mb_height = 0;
+
+    av_buffer_unref(&pic->mb_var_buf);
+    av_buffer_unref(&pic->mc_mb_var_buf);
+    av_buffer_unref(&pic->mb_mean_buf);
+    av_buffer_unref(&pic->mbskip_table_buf);
+    av_buffer_unref(&pic->qscale_table_buf);
+    av_buffer_unref(&pic->mb_type_buf);
+
+    for (i = 0; i < 2; i++) {
+        av_buffer_unref(&pic->motion_val_buf[i]);
+        av_buffer_unref(&pic->ref_index_buf[i]);
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegpicture.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegpicture.h
new file mode 100644
index 000000000..2db3d6733
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegpicture.h
@@ -0,0 +1,114 @@
+/*
+ * Mpeg video formats-related defines and utility functions
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MPEGPICTURE_H
+#define AVCODEC_MPEGPICTURE_H
+
+#include <stdint.h>
+
+#include "libavutil/frame.h"
+
+#include "avcodec.h"
+#include "motion_est.h"
+#include "thread.h"
+
+#define MAX_PICTURE_COUNT 36
+#define EDGE_WIDTH 16
+
+typedef struct ScratchpadContext {
+    uint8_t *edge_emu_buffer;     ///< temporary buffer for if MVs point to out-of-frame data
+    uint8_t *rd_scratchpad;       ///< scratchpad for rate distortion mb decision
+    uint8_t *obmc_scratchpad;
+    uint8_t *b_scratchpad;        ///< scratchpad used for writing into write only buffers
+} ScratchpadContext;
+
+/**
+ * Picture.
+ */
+typedef struct Picture {
+    struct AVFrame *f;
+    ThreadFrame tf;
+
+    AVBufferRef *qscale_table_buf;
+    int8_t *qscale_table;
+
+    AVBufferRef *motion_val_buf[2];
+    int16_t (*motion_val[2])[2];
+
+    AVBufferRef *mb_type_buf;
+    uint32_t *mb_type;          ///< types and macros are defined in mpegutils.h
+
+    AVBufferRef *mbskip_table_buf;
+    uint8_t *mbskip_table;
+
+    AVBufferRef *ref_index_buf[2];
+    int8_t *ref_index[2];
+
+    AVBufferRef *mb_var_buf;
+    uint16_t *mb_var;           ///< Table for MB variances
+
+    AVBufferRef *mc_mb_var_buf;
+    uint16_t *mc_mb_var;        ///< Table for motion compensated MB variances
+
+    int alloc_mb_width;         ///< mb_width used to allocate tables
+    int alloc_mb_height;        ///< mb_height used to allocate tables
+
+    AVBufferRef *mb_mean_buf;
+    uint8_t *mb_mean;           ///< Table for MB luminance
+
+    AVBufferRef *hwaccel_priv_buf;
+    void *hwaccel_picture_private; ///< Hardware accelerator private data
+
+    int field_picture;          ///< whether or not the picture was encoded in separate fields
+
+    int64_t mb_var_sum;         ///< sum of MB variance for current frame
+    int64_t mc_mb_var_sum;      ///< motion compensated MB variance for current frame
+
+    int b_frame_score;
+    int needs_realloc;          ///< Picture needs to be reallocated (eg due to a frame size change)
+
+    int reference;
+    int shared;
+
+    uint64_t encoding_error[AV_NUM_DATA_POINTERS];
+} Picture;
+
+/**
+ * Allocate a Picture.
+ * The pixels are allocated/set by calling get_buffer() if shared = 0.
+ */
+int ff_alloc_picture(AVCodecContext *avctx, Picture *pic, MotionEstContext *me,
+                     ScratchpadContext *sc, int shared, int encoding,
+                     int chroma_x_shift, int chroma_y_shift, int out_format,
+                     int mb_stride, int mb_width, int mb_height, int b8_stride,
+                     ptrdiff_t *linesize, ptrdiff_t *uvlinesize);
+
+int ff_mpeg_framesize_alloc(AVCodecContext *avctx, MotionEstContext *me,
+                            ScratchpadContext *sc, int linesize);
+
+int ff_mpeg_ref_picture(AVCodecContext *avctx, Picture *dst, Picture *src);
+void ff_mpeg_unref_picture(AVCodecContext *avctx, Picture *picture);
+
+void ff_free_picture_tables(Picture *pic);
+int ff_update_picture_tables(Picture *dst, Picture *src);
+
+int ff_find_unused_picture(AVCodecContext *avctx, Picture *picture, int shared);
+
+#endif /* AVCODEC_MPEGPICTURE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegutils.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegutils.c
new file mode 100644
index 000000000..3f9454061
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegutils.c
@@ -0,0 +1,393 @@
+/*
+ * Mpeg video formats-related defines and utility functions
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/common.h"
+#include "libavutil/frame.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/motion_vector.h"
+#include "libavutil/avassert.h"
+
+#include "avcodec.h"
+#include "mpegutils.h"
+
+static int add_mb(AVMotionVector *mb, uint32_t mb_type,
+                  int dst_x, int dst_y,
+                  int motion_x, int motion_y, int motion_scale,
+                  int direction)
+{
+    mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16;
+    mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16;
+    mb->motion_x = motion_x;
+    mb->motion_y = motion_y;
+    mb->motion_scale = motion_scale;
+    mb->dst_x = dst_x;
+    mb->dst_y = dst_y;
+    mb->src_x = dst_x + motion_x / motion_scale;
+    mb->src_y = dst_y + motion_y / motion_scale;
+    mb->source = direction ? 1 : -1;
+    mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here?
+    return 1;
+}
+
+void ff_draw_horiz_band(AVCodecContext *avctx,
+                        AVFrame *cur, AVFrame *last,
+                        int y, int h, int picture_structure,
+                        int first_field, int low_delay)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
+    int vshift = desc->log2_chroma_h;
+    const int field_pic = picture_structure != PICT_FRAME;
+    if (field_pic) {
+        h <<= 1;
+        y <<= 1;
+    }
+
+    h = FFMIN(h, avctx->height - y);
+
+    if (field_pic && first_field &&
+        !(avctx->slice_flags & SLICE_FLAG_ALLOW_FIELD))
+        return;
+
+    if (avctx->draw_horiz_band) {
+        AVFrame *src;
+        int offset[AV_NUM_DATA_POINTERS];
+        int i;
+
+        if (cur->pict_type == AV_PICTURE_TYPE_B || low_delay ||
+           (avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
+            src = cur;
+        else if (last)
+            src = last;
+        else
+            return;
+
+        if (cur->pict_type == AV_PICTURE_TYPE_B &&
+            picture_structure == PICT_FRAME &&
+            avctx->codec_id != AV_CODEC_ID_SVQ3) {
+            for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
+                offset[i] = 0;
+        } else {
+            offset[0]= y * src->linesize[0];
+            offset[1]=
+            offset[2]= (y >> vshift) * src->linesize[1];
+            for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
+                offset[i] = 0;
+        }
+
+        emms_c();
+
+        avctx->draw_horiz_band(avctx, src, offset,
+                               y, picture_structure, h);
+    }
+}
+
+void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
+                         uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
+                         int *low_delay,
+                         int mb_width, int mb_height, int mb_stride, int quarter_sample)
+{
+    if ((avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {
+        const int shift = 1 + quarter_sample;
+        const int scale = 1 << shift;
+        const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
+        const int mv_stride      = (mb_width << mv_sample_log2) +
+                                   (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
+        int mb_x, mb_y, mbcount = 0;
+
+        /* size is width * height * 2 * 4 where 2 is for directions and 4 is
+         * for the maximum number of MB (4 MB in case of IS_8x8) */
+        AVMotionVector *mvs = av_malloc_array(mb_width * mb_height, 2 * 4 * sizeof(AVMotionVector));
+        if (!mvs)
+            return;
+
+        for (mb_y = 0; mb_y < mb_height; mb_y++) {
+            for (mb_x = 0; mb_x < mb_width; mb_x++) {
+                int i, direction, mb_type = mbtype_table[mb_x + mb_y * mb_stride];
+                for (direction = 0; direction < 2; direction++) {
+                    if (!USES_LIST(mb_type, direction))
+                        continue;
+                    if (IS_8X8(mb_type)) {
+                        for (i = 0; i < 4; i++) {
+                            int sx = mb_x * 16 + 4 + 8 * (i & 1);
+                            int sy = mb_y * 16 + 4 + 8 * (i >> 1);
+                            int xy = (mb_x * 2 + (i & 1) +
+                                      (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
+                            int mx = motion_val[direction][xy][0];
+                            int my = motion_val[direction][xy][1];
+                            mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
+                        }
+                    } else if (IS_16X8(mb_type)) {
+                        for (i = 0; i < 2; i++) {
+                            int sx = mb_x * 16 + 8;
+                            int sy = mb_y * 16 + 4 + 8 * i;
+                            int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
+                            int mx = motion_val[direction][xy][0];
+                            int my = motion_val[direction][xy][1];
+
+                            if (IS_INTERLACED(mb_type))
+                                my *= 2;
+
+                            mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
+                        }
+                    } else if (IS_8X16(mb_type)) {
+                        for (i = 0; i < 2; i++) {
+                            int sx = mb_x * 16 + 4 + 8 * i;
+                            int sy = mb_y * 16 + 8;
+                            int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
+                            int mx = motion_val[direction][xy][0];
+                            int my = motion_val[direction][xy][1];
+
+                            if (IS_INTERLACED(mb_type))
+                                my *= 2;
+
+                            mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
+                        }
+                    } else {
+                          int sx = mb_x * 16 + 8;
+                          int sy = mb_y * 16 + 8;
+                          int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2;
+                          int mx = motion_val[direction][xy][0];
+                          int my = motion_val[direction][xy][1];
+                          mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
+                    }
+                }
+            }
+        }
+
+        if (mbcount) {
+            AVFrameSideData *sd;
+
+            av_log(avctx, AV_LOG_DEBUG, "Adding %d MVs info to frame %d\n", mbcount, avctx->frame_number);
+            sd = av_frame_new_side_data(pict, AV_FRAME_DATA_MOTION_VECTORS, mbcount * sizeof(AVMotionVector));
+            if (!sd) {
+                av_freep(&mvs);
+                return;
+            }
+            memcpy(sd->data, mvs, mbcount * sizeof(AVMotionVector));
+        }
+
+        av_freep(&mvs);
+    }
+
+    /* TODO: export all the following to make them accessible for users (and filters) */
+    if (avctx->hwaccel || !mbtype_table)
+        return;
+
+
+    if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
+        int x,y;
+
+        av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
+               av_get_picture_type_char(pict->pict_type));
+        for (y = 0; y < mb_height; y++) {
+            for (x = 0; x < mb_width; x++) {
+                if (avctx->debug & FF_DEBUG_SKIP) {
+                    int count = mbskip_table ? mbskip_table[x + y * mb_stride] : 0;
+                    if (count > 9)
+                        count = 9;
+                    av_log(avctx, AV_LOG_DEBUG, "%1d", count);
+                }
+                if (avctx->debug & FF_DEBUG_QP) {
+                    av_log(avctx, AV_LOG_DEBUG, "%2d",
+                           qscale_table[x + y * mb_stride]);
+                }
+                if (avctx->debug & FF_DEBUG_MB_TYPE) {
+                    int mb_type = mbtype_table[x + y * mb_stride];
+                    // Type & MV direction
+                    if (IS_PCM(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "P");
+                    else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "A");
+                    else if (IS_INTRA4x4(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "i");
+                    else if (IS_INTRA16x16(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "I");
+                    else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "d");
+                    else if (IS_DIRECT(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "D");
+                    else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "g");
+                    else if (IS_GMC(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "G");
+                    else if (IS_SKIP(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "S");
+                    else if (!USES_LIST(mb_type, 1))
+                        av_log(avctx, AV_LOG_DEBUG, ">");
+                    else if (!USES_LIST(mb_type, 0))
+                        av_log(avctx, AV_LOG_DEBUG, "<");
+                    else {
+                        av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
+                        av_log(avctx, AV_LOG_DEBUG, "X");
+                    }
+
+                    // segmentation
+                    if (IS_8X8(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "+");
+                    else if (IS_16X8(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "-");
+                    else if (IS_8X16(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "|");
+                    else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, " ");
+                    else
+                        av_log(avctx, AV_LOG_DEBUG, "?");
+
+
+                    if (IS_INTERLACED(mb_type))
+                        av_log(avctx, AV_LOG_DEBUG, "=");
+                    else
+                        av_log(avctx, AV_LOG_DEBUG, " ");
+                }
+            }
+            av_log(avctx, AV_LOG_DEBUG, "\n");
+        }
+    }
+
+#if FF_API_DEBUG_MV
+    if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
+        (avctx->debug_mv)) {
+        int mb_y;
+        int i, ret;
+        int h_chroma_shift, v_chroma_shift, block_height;
+        const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
+        const int mv_stride      = (mb_width << mv_sample_log2) +
+                                   (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
+
+        if (low_delay)
+            *low_delay = 0; // needed to see the vectors without trashing the buffers
+
+        ret = av_pix_fmt_get_chroma_sub_sample (avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
+        if (ret)
+            return ret;
+
+        av_frame_make_writable(pict);
+
+        pict->opaque = NULL;
+        block_height = 16 >> v_chroma_shift;
+
+        for (mb_y = 0; mb_y < mb_height; mb_y++) {
+            int mb_x;
+            for (mb_x = 0; mb_x < mb_width; mb_x++) {
+                const int mb_index = mb_x + mb_y * mb_stride;
+                if ((avctx->debug & FF_DEBUG_VIS_QP)) {
+                    uint64_t c = (qscale_table[mb_index] * 128 / 31) *
+                                 0x0101010101010101ULL;
+                    int y;
+                    for (y = 0; y < block_height; y++) {
+                        *(uint64_t *)(pict->data[1] + 8 * mb_x +
+                                      (block_height * mb_y + y) *
+                                      pict->linesize[1]) = c;
+                        *(uint64_t *)(pict->data[2] + 8 * mb_x +
+                                      (block_height * mb_y + y) *
+                                      pict->linesize[2]) = c;
+                    }
+                }
+                if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
+                    motion_val[0]) {
+                    int mb_type = mbtype_table[mb_index];
+                    uint64_t u,v;
+                    int y;
+#define COLOR(theta, r) \
+    u = (int)(128 + r * cos(theta * M_PI / 180)); \
+    v = (int)(128 + r * sin(theta * M_PI / 180));
+
+
+                    u = v = 128;
+                    if (IS_PCM(mb_type)) {
+                        COLOR(120, 48)
+                    } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
+                               IS_INTRA16x16(mb_type)) {
+                        COLOR(30, 48)
+                    } else if (IS_INTRA4x4(mb_type)) {
+                        COLOR(90, 48)
+                    } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
+                        // COLOR(120, 48)
+                    } else if (IS_DIRECT(mb_type)) {
+                        COLOR(150, 48)
+                    } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
+                        COLOR(170, 48)
+                    } else if (IS_GMC(mb_type)) {
+                        COLOR(190, 48)
+                    } else if (IS_SKIP(mb_type)) {
+                        // COLOR(180, 48)
+                    } else if (!USES_LIST(mb_type, 1)) {
+                        COLOR(240, 48)
+                    } else if (!USES_LIST(mb_type, 0)) {
+                        COLOR(0, 48)
+                    } else {
+                        av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
+                        COLOR(300,48)
+                    }
+
+                    u *= 0x0101010101010101ULL;
+                    v *= 0x0101010101010101ULL;
+                    for (y = 0; y < block_height; y++) {
+                        *(uint64_t *)(pict->data[1] + 8 * mb_x +
+                                      (block_height * mb_y + y) * pict->linesize[1]) = u;
+                        *(uint64_t *)(pict->data[2] + 8 * mb_x +
+                                      (block_height * mb_y + y) * pict->linesize[2]) = v;
+                    }
+
+                    // segmentation
+                    if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
+                        *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
+                                      (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
+                        *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
+                                      (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
+                    }
+                    if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
+                        for (y = 0; y < 16; y++)
+                            pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
+                                          pict->linesize[0]] ^= 0x80;
+                    }
+                    if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
+                        int dm = 1 << (mv_sample_log2 - 2);
+                        for (i = 0; i < 4; i++) {
+                            int sx = mb_x * 16 + 8 * (i & 1);
+                            int sy = mb_y * 16 + 8 * (i >> 1);
+                            int xy = (mb_x * 2 + (i & 1) +
+                                     (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
+                            // FIXME bidir
+                            int32_t *mv = (int32_t *) &motion_val[0][xy];
+                            if (mv[0] != mv[dm] ||
+                                mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
+                                for (y = 0; y < 8; y++)
+                                    pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
+                            if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
+                                *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
+                                              pict->linesize[0]) ^= 0x8080808080808080ULL;
+                        }
+                    }
+
+                    if (IS_INTERLACED(mb_type) &&
+                        avctx->codec->id == AV_CODEC_ID_H264) {
+                        // hmm
+                    }
+                }
+                if (mbskip_table)
+                    mbskip_table[mb_index] = 0;
+            }
+        }
+    }
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegutils.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegutils.h
new file mode 100644
index 000000000..1ed21c19b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegutils.h
@@ -0,0 +1,148 @@
+/*
+ * Mpeg video formats-related defines and utility functions
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MPEGUTILS_H
+#define AVCODEC_MPEGUTILS_H
+
+#include <stdint.h>
+
+#include "libavutil/frame.h"
+
+#include "avcodec.h"
+#include "version.h"
+
+/**
+ * Return value for header parsers if frame is not coded.
+ * */
+#define FRAME_SKIPPED 100
+
+/* picture type */
+#define PICT_TOP_FIELD     1
+#define PICT_BOTTOM_FIELD  2
+#define PICT_FRAME         3
+
+/**
+ * Value of Picture.reference when Picture is not a reference picture, but
+ * is held for delayed output.
+ */
+#define DELAYED_PIC_REF 4
+
+#define MAX_MB_BYTES    (30 * 16 * 16 * 3 / 8 + 120)
+#define MAX_FCODE        7
+
+/* MB types */
+#define MB_TYPE_INTRA4x4   (1 <<  0)
+#define MB_TYPE_INTRA16x16 (1 <<  1) // FIXME H.264-specific
+#define MB_TYPE_INTRA_PCM  (1 <<  2) // FIXME H.264-specific
+#define MB_TYPE_16x16      (1 <<  3)
+#define MB_TYPE_16x8       (1 <<  4)
+#define MB_TYPE_8x16       (1 <<  5)
+#define MB_TYPE_8x8        (1 <<  6)
+#define MB_TYPE_INTERLACED (1 <<  7)
+#define MB_TYPE_DIRECT2    (1 <<  8) // FIXME
+#define MB_TYPE_ACPRED     (1 <<  9)
+#define MB_TYPE_GMC        (1 << 10)
+#define MB_TYPE_SKIP       (1 << 11)
+#define MB_TYPE_P0L0       (1 << 12)
+#define MB_TYPE_P1L0       (1 << 13)
+#define MB_TYPE_P0L1       (1 << 14)
+#define MB_TYPE_P1L1       (1 << 15)
+#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
+#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
+#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
+#define MB_TYPE_QUANT      (1 << 16)
+#define MB_TYPE_CBP        (1 << 17)
+
+#define MB_TYPE_INTRA    MB_TYPE_INTRA4x4 // default mb_type if there is just one type
+
+#define IS_INTRA4x4(a)   ((a) & MB_TYPE_INTRA4x4)
+#define IS_INTRA16x16(a) ((a) & MB_TYPE_INTRA16x16)
+#define IS_PCM(a)        ((a) & MB_TYPE_INTRA_PCM)
+#define IS_INTRA(a)      ((a) & 7)
+#define IS_INTER(a)      ((a) & (MB_TYPE_16x16 | MB_TYPE_16x8 | \
+                                 MB_TYPE_8x16  | MB_TYPE_8x8))
+#define IS_SKIP(a)       ((a) & MB_TYPE_SKIP)
+#define IS_INTRA_PCM(a)  ((a) & MB_TYPE_INTRA_PCM)
+#define IS_INTERLACED(a) ((a) & MB_TYPE_INTERLACED)
+#define IS_DIRECT(a)     ((a) & MB_TYPE_DIRECT2)
+#define IS_GMC(a)        ((a) & MB_TYPE_GMC)
+#define IS_16X16(a)      ((a) & MB_TYPE_16x16)
+#define IS_16X8(a)       ((a) & MB_TYPE_16x8)
+#define IS_8X16(a)       ((a) & MB_TYPE_8x16)
+#define IS_8X8(a)        ((a) & MB_TYPE_8x8)
+#define IS_SUB_8X8(a)    ((a) & MB_TYPE_16x16) // note reused
+#define IS_SUB_8X4(a)    ((a) & MB_TYPE_16x8)  // note reused
+#define IS_SUB_4X8(a)    ((a) & MB_TYPE_8x16)  // note reused
+#define IS_SUB_4X4(a)    ((a) & MB_TYPE_8x8)   // note reused
+#define IS_ACPRED(a)     ((a) & MB_TYPE_ACPRED)
+#define IS_QUANT(a)      ((a) & MB_TYPE_QUANT)
+#define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0 << ((part) + 2 * (list))))
+
+// does this mb use listX, note does not work if subMBs
+#define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0 | MB_TYPE_P1L0) << (2 * (list))))
+
+#define HAS_CBP(a)       ((a) & MB_TYPE_CBP)
+
+/* MB types for encoding */
+#define CANDIDATE_MB_TYPE_INTRA      (1 <<  0)
+#define CANDIDATE_MB_TYPE_INTER      (1 <<  1)
+#define CANDIDATE_MB_TYPE_INTER4V    (1 <<  2)
+#define CANDIDATE_MB_TYPE_SKIPPED    (1 <<  3)
+
+#define CANDIDATE_MB_TYPE_DIRECT     (1 <<  4)
+#define CANDIDATE_MB_TYPE_FORWARD    (1 <<  5)
+#define CANDIDATE_MB_TYPE_BACKWARD   (1 <<  6)
+#define CANDIDATE_MB_TYPE_BIDIR      (1 <<  7)
+
+#define CANDIDATE_MB_TYPE_INTER_I    (1 <<  8)
+#define CANDIDATE_MB_TYPE_FORWARD_I  (1 <<  9)
+#define CANDIDATE_MB_TYPE_BACKWARD_I (1 << 10)
+#define CANDIDATE_MB_TYPE_BIDIR_I    (1 << 11)
+
+#define CANDIDATE_MB_TYPE_DIRECT0    (1 << 12)
+
+#define INPLACE_OFFSET 16
+
+enum OutputFormat {
+    FMT_MPEG1,
+    FMT_H261,
+    FMT_H263,
+    FMT_MJPEG,
+};
+
+
+/**
+ * Draw a horizontal band if supported.
+ *
+ * @param h is the normal height, this will be reduced automatically if needed
+ */
+void ff_draw_horiz_band(AVCodecContext *avctx, AVFrame *cur, AVFrame *last,
+                        int y, int h, int picture_structure, int first_field,
+                        int low_delay);
+
+/**
+ * Print debugging info for the given picture.
+ */
+void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
+                         uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
+                         int *low_delay,
+                         int mb_width, int mb_height, int mb_stride, int quarter_sample);
+
+#endif /* AVCODEC_MPEGUTILS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideo.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideo.c
new file mode 100644
index 000000000..dbb6ab9b3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideo.c
@@ -0,0 +1,2356 @@
+/*
+ * The simplest mpeg encoder (well, it was the simplest!)
+ * Copyright (c) 2000,2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * The simplest mpeg encoder (well, it was the simplest!).
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/internal.h"
+#include "libavutil/motion_vector.h"
+#include "libavutil/timer.h"
+#include "avcodec.h"
+#include "blockdsp.h"
+#include "h264chroma.h"
+#include "idctdsp.h"
+#include "internal.h"
+#include "mathops.h"
+#include "mpeg_er.h"
+#include "mpegutils.h"
+#include "mpegvideo.h"
+#include "mpegvideodata.h"
+#include "mjpegenc.h"
+#include "msmpeg4.h"
+#include "qpeldsp.h"
+#include "thread.h"
+#include "wmv2.h"
+#include <limits.h>
+
+static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
+                                   int16_t *block, int n, int qscale)
+{
+    int i, level, nCoeffs;
+    const uint16_t *quant_matrix;
+
+    nCoeffs= s->block_last_index[n];
+
+    block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
+    /* XXX: only MPEG-1 */
+    quant_matrix = s->intra_matrix;
+    for(i=1;i<=nCoeffs;i++) {
+        int j= s->intra_scantable.permutated[i];
+        level = block[j];
+        if (level) {
+            if (level < 0) {
+                level = -level;
+                level = (int)(level * qscale * quant_matrix[j]) >> 3;
+                level = (level - 1) | 1;
+                level = -level;
+            } else {
+                level = (int)(level * qscale * quant_matrix[j]) >> 3;
+                level = (level - 1) | 1;
+            }
+            block[j] = level;
+        }
+    }
+}
+
+static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
+                                   int16_t *block, int n, int qscale)
+{
+    int i, level, nCoeffs;
+    const uint16_t *quant_matrix;
+
+    nCoeffs= s->block_last_index[n];
+
+    quant_matrix = s->inter_matrix;
+    for(i=0; i<=nCoeffs; i++) {
+        int j= s->intra_scantable.permutated[i];
+        level = block[j];
+        if (level) {
+            if (level < 0) {
+                level = -level;
+                level = (((level << 1) + 1) * qscale *
+                         ((int) (quant_matrix[j]))) >> 4;
+                level = (level - 1) | 1;
+                level = -level;
+            } else {
+                level = (((level << 1) + 1) * qscale *
+                         ((int) (quant_matrix[j]))) >> 4;
+                level = (level - 1) | 1;
+            }
+            block[j] = level;
+        }
+    }
+}
+
+static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
+                                   int16_t *block, int n, int qscale)
+{
+    int i, level, nCoeffs;
+    const uint16_t *quant_matrix;
+
+    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
+    else                 qscale <<= 1;
+
+    if(s->alternate_scan) nCoeffs= 63;
+    else nCoeffs= s->block_last_index[n];
+
+    block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
+    quant_matrix = s->intra_matrix;
+    for(i=1;i<=nCoeffs;i++) {
+        int j= s->intra_scantable.permutated[i];
+        level = block[j];
+        if (level) {
+            if (level < 0) {
+                level = -level;
+                level = (int)(level * qscale * quant_matrix[j]) >> 4;
+                level = -level;
+            } else {
+                level = (int)(level * qscale * quant_matrix[j]) >> 4;
+            }
+            block[j] = level;
+        }
+    }
+}
+
+static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
+                                   int16_t *block, int n, int qscale)
+{
+    int i, level, nCoeffs;
+    const uint16_t *quant_matrix;
+    int sum=-1;
+
+    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
+    else                 qscale <<= 1;
+
+    if(s->alternate_scan) nCoeffs= 63;
+    else nCoeffs= s->block_last_index[n];
+
+    block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
+    sum += block[0];
+    quant_matrix = s->intra_matrix;
+    for(i=1;i<=nCoeffs;i++) {
+        int j= s->intra_scantable.permutated[i];
+        level = block[j];
+        if (level) {
+            if (level < 0) {
+                level = -level;
+                level = (int)(level * qscale * quant_matrix[j]) >> 4;
+                level = -level;
+            } else {
+                level = (int)(level * qscale * quant_matrix[j]) >> 4;
+            }
+            block[j] = level;
+            sum+=level;
+        }
+    }
+    block[63]^=sum&1;
+}
+
+static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
+                                   int16_t *block, int n, int qscale)
+{
+    int i, level, nCoeffs;
+    const uint16_t *quant_matrix;
+    int sum=-1;
+
+    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
+    else                 qscale <<= 1;
+
+    if(s->alternate_scan) nCoeffs= 63;
+    else nCoeffs= s->block_last_index[n];
+
+    quant_matrix = s->inter_matrix;
+    for(i=0; i<=nCoeffs; i++) {
+        int j= s->intra_scantable.permutated[i];
+        level = block[j];
+        if (level) {
+            if (level < 0) {
+                level = -level;
+                level = (((level << 1) + 1) * qscale *
+                         ((int) (quant_matrix[j]))) >> 5;
+                level = -level;
+            } else {
+                level = (((level << 1) + 1) * qscale *
+                         ((int) (quant_matrix[j]))) >> 5;
+            }
+            block[j] = level;
+            sum+=level;
+        }
+    }
+    block[63]^=sum&1;
+}
+
+static void dct_unquantize_h263_intra_c(MpegEncContext *s,
+                                  int16_t *block, int n, int qscale)
+{
+    int i, level, qmul, qadd;
+    int nCoeffs;
+
+    av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
+
+    qmul = qscale << 1;
+
+    if (!s->h263_aic) {
+        block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
+        qadd = (qscale - 1) | 1;
+    }else{
+        qadd = 0;
+    }
+    if(s->ac_pred)
+        nCoeffs=63;
+    else
+        nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
+
+    for(i=1; i<=nCoeffs; i++) {
+        level = block[i];
+        if (level) {
+            if (level < 0) {
+                level = level * qmul - qadd;
+            } else {
+                level = level * qmul + qadd;
+            }
+            block[i] = level;
+        }
+    }
+}
+
+static void dct_unquantize_h263_inter_c(MpegEncContext *s,
+                                  int16_t *block, int n, int qscale)
+{
+    int i, level, qmul, qadd;
+    int nCoeffs;
+
+    av_assert2(s->block_last_index[n]>=0);
+
+    qadd = (qscale - 1) | 1;
+    qmul = qscale << 1;
+
+    nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
+
+    for(i=0; i<=nCoeffs; i++) {
+        level = block[i];
+        if (level) {
+            if (level < 0) {
+                level = level * qmul - qadd;
+            } else {
+                level = level * qmul + qadd;
+            }
+            block[i] = level;
+        }
+    }
+}
+
+
+static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
+{
+    while(h--)
+        memset(dst + h*linesize, 128, 16);
+}
+
+static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
+{
+    while(h--)
+        memset(dst + h*linesize, 128, 8);
+}
+
+/* init common dct for both encoder and decoder */
+static av_cold int dct_init(MpegEncContext *s)
+{
+    ff_blockdsp_init(&s->bdsp, s->avctx);
+    ff_h264chroma_init(&s->h264chroma, 8); //for lowres
+    ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
+    ff_mpegvideodsp_init(&s->mdsp);
+    ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
+
+    if (s->avctx->debug & FF_DEBUG_NOMC) {
+        int i;
+        for (i=0; i<4; i++) {
+            s->hdsp.avg_pixels_tab[0][i] = gray16;
+            s->hdsp.put_pixels_tab[0][i] = gray16;
+            s->hdsp.put_no_rnd_pixels_tab[0][i] = gray16;
+
+            s->hdsp.avg_pixels_tab[1][i] = gray8;
+            s->hdsp.put_pixels_tab[1][i] = gray8;
+            s->hdsp.put_no_rnd_pixels_tab[1][i] = gray8;
+        }
+    }
+
+    s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
+    s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
+    s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
+    s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
+    s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
+    if (s->avctx->flags & AV_CODEC_FLAG_BITEXACT)
+        s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
+    s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
+
+    if (HAVE_INTRINSICS_NEON)
+        ff_mpv_common_init_neon(s);
+
+    if (ARCH_ALPHA)
+        ff_mpv_common_init_axp(s);
+    if (ARCH_ARM)
+        ff_mpv_common_init_arm(s);
+    if (ARCH_PPC)
+        ff_mpv_common_init_ppc(s);
+    if (ARCH_X86)
+        ff_mpv_common_init_x86(s);
+    if (ARCH_MIPS)
+        ff_mpv_common_init_mips(s);
+
+    return 0;
+}
+
+av_cold void ff_mpv_idct_init(MpegEncContext *s)
+{
+    if (s->codec_id == AV_CODEC_ID_MPEG4)
+        s->idsp.mpeg4_studio_profile = s->studio_profile;
+    ff_idctdsp_init(&s->idsp, s->avctx);
+
+    /* load & permutate scantables
+     * note: only wmv uses different ones
+     */
+    if (s->alternate_scan) {
+        ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
+        ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
+    } else {
+        ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
+        ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
+    }
+    ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
+    ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
+}
+
+static int alloc_picture(MpegEncContext *s, Picture *pic, int shared)
+{
+    return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, shared, 0,
+                            s->chroma_x_shift, s->chroma_y_shift, s->out_format,
+                            s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
+                            &s->linesize, &s->uvlinesize);
+}
+
+static int init_duplicate_context(MpegEncContext *s)
+{
+    int y_size = s->b8_stride * (2 * s->mb_height + 1);
+    int c_size = s->mb_stride * (s->mb_height + 1);
+    int yc_size = y_size + 2 * c_size;
+    int i;
+
+    if (s->mb_height & 1)
+        yc_size += 2*s->b8_stride + 2*s->mb_stride;
+
+    s->sc.edge_emu_buffer =
+    s->me.scratchpad   =
+    s->me.temp         =
+    s->sc.rd_scratchpad   =
+    s->sc.b_scratchpad    =
+    s->sc.obmc_scratchpad = NULL;
+
+    if (s->encoding) {
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
+                          ME_MAP_SIZE * sizeof(uint32_t), fail)
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
+                          ME_MAP_SIZE * sizeof(uint32_t), fail)
+        if (s->noise_reduction) {
+            FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
+                              2 * 64 * sizeof(int), fail)
+        }
+    }
+    FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
+    s->block = s->blocks[0];
+
+    for (i = 0; i < 12; i++) {
+        s->pblocks[i] = &s->block[i];
+    }
+
+    FF_ALLOCZ_OR_GOTO(s->avctx, s->block32, sizeof(*s->block32), fail)
+    s->dpcm_direction = 0;
+    FF_ALLOCZ_OR_GOTO(s->avctx, s->dpcm_macroblock, sizeof(*s->dpcm_macroblock), fail)
+
+    if (s->avctx->codec_tag == AV_RL32("VCR2")) {
+        // exchange uv
+        FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
+    }
+
+    if (s->out_format == FMT_H263) {
+        /* ac values */
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
+                          yc_size * sizeof(int16_t) * 16, fail);
+        s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
+        s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
+        s->ac_val[2] = s->ac_val[1] + c_size;
+    }
+
+    return 0;
+fail:
+    return -1; // free() through ff_mpv_common_end()
+}
+
+static void free_duplicate_context(MpegEncContext *s)
+{
+    if (!s)
+        return;
+
+    av_freep(&s->sc.edge_emu_buffer);
+    av_freep(&s->me.scratchpad);
+    s->me.temp =
+    s->sc.rd_scratchpad =
+    s->sc.b_scratchpad =
+    s->sc.obmc_scratchpad = NULL;
+
+    av_freep(&s->dct_error_sum);
+    av_freep(&s->me.map);
+    av_freep(&s->me.score_map);
+    av_freep(&s->blocks);
+    av_freep(&s->block32);
+    av_freep(&s->dpcm_macroblock);
+    av_freep(&s->ac_val_base);
+    s->block = NULL;
+}
+
+static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
+{
+#define COPY(a) bak->a = src->a
+    COPY(sc.edge_emu_buffer);
+    COPY(me.scratchpad);
+    COPY(me.temp);
+    COPY(sc.rd_scratchpad);
+    COPY(sc.b_scratchpad);
+    COPY(sc.obmc_scratchpad);
+    COPY(me.map);
+    COPY(me.score_map);
+    COPY(blocks);
+    COPY(block);
+    COPY(block32);
+    COPY(dpcm_macroblock);
+    COPY(dpcm_direction);
+    COPY(start_mb_y);
+    COPY(end_mb_y);
+    COPY(me.map_generation);
+    COPY(pb);
+    COPY(dct_error_sum);
+    COPY(dct_count[0]);
+    COPY(dct_count[1]);
+    COPY(ac_val_base);
+    COPY(ac_val[0]);
+    COPY(ac_val[1]);
+    COPY(ac_val[2]);
+#undef COPY
+}
+
+int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
+{
+    MpegEncContext bak;
+    int i, ret;
+    // FIXME copy only needed parts
+    // START_TIMER
+    backup_duplicate_context(&bak, dst);
+    memcpy(dst, src, sizeof(MpegEncContext));
+    backup_duplicate_context(dst, &bak);
+    for (i = 0; i < 12; i++) {
+        dst->pblocks[i] = &dst->block[i];
+    }
+    if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
+        // exchange uv
+        FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
+    }
+    if (!dst->sc.edge_emu_buffer &&
+        (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
+                                       &dst->sc, dst->linesize)) < 0) {
+        av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
+               "scratch buffers.\n");
+        return ret;
+    }
+    // STOP_TIMER("update_duplicate_context")
+    // about 10k cycles / 0.01 sec for  1000frames on 1ghz with 2 threads
+    return 0;
+}
+
+int ff_mpeg_update_thread_context(AVCodecContext *dst,
+                                  const AVCodecContext *src)
+{
+    int i, ret;
+    MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
+
+    if (dst == src)
+        return 0;
+
+    av_assert0(s != s1);
+
+    // FIXME can parameters change on I-frames?
+    // in that case dst may need a reinit
+    if (!s->context_initialized) {
+        int err;
+        memcpy(s, s1, sizeof(MpegEncContext));
+
+        s->avctx                 = dst;
+        s->bitstream_buffer      = NULL;
+        s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
+
+        if (s1->context_initialized){
+//             s->picture_range_start  += MAX_PICTURE_COUNT;
+//             s->picture_range_end    += MAX_PICTURE_COUNT;
+            ff_mpv_idct_init(s);
+            if((err = ff_mpv_common_init(s)) < 0){
+                memset(s, 0, sizeof(MpegEncContext));
+                s->avctx = dst;
+                return err;
+            }
+        }
+    }
+
+    if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
+        s->context_reinit = 0;
+        s->height = s1->height;
+        s->width  = s1->width;
+        if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
+            return ret;
+    }
+
+    s->avctx->coded_height  = s1->avctx->coded_height;
+    s->avctx->coded_width   = s1->avctx->coded_width;
+    s->avctx->width         = s1->avctx->width;
+    s->avctx->height        = s1->avctx->height;
+
+    s->quarter_sample       = s1->quarter_sample;
+
+    s->coded_picture_number = s1->coded_picture_number;
+    s->picture_number       = s1->picture_number;
+
+    av_assert0(!s->picture || s->picture != s1->picture);
+    if(s->picture)
+    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
+        ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
+        if (s1->picture && s1->picture[i].f->buf[0] &&
+            (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
+            return ret;
+    }
+
+#define UPDATE_PICTURE(pic)\
+do {\
+    ff_mpeg_unref_picture(s->avctx, &s->pic);\
+    if (s1->pic.f && s1->pic.f->buf[0])\
+        ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
+    else\
+        ret = ff_update_picture_tables(&s->pic, &s1->pic);\
+    if (ret < 0)\
+        return ret;\
+} while (0)
+
+    UPDATE_PICTURE(current_picture);
+    UPDATE_PICTURE(last_picture);
+    UPDATE_PICTURE(next_picture);
+
+#define REBASE_PICTURE(pic, new_ctx, old_ctx)                                 \
+    ((pic && pic >= old_ctx->picture &&                                       \
+      pic < old_ctx->picture + MAX_PICTURE_COUNT) ?                           \
+        &new_ctx->picture[pic - old_ctx->picture] : NULL)
+
+    s->last_picture_ptr    = REBASE_PICTURE(s1->last_picture_ptr,    s, s1);
+    s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
+    s->next_picture_ptr    = REBASE_PICTURE(s1->next_picture_ptr,    s, s1);
+
+    // Error/bug resilience
+    s->next_p_frame_damaged = s1->next_p_frame_damaged;
+    s->workaround_bugs      = s1->workaround_bugs;
+    s->padding_bug_score    = s1->padding_bug_score;
+
+    // MPEG-4 timing info
+    memcpy(&s->last_time_base, &s1->last_time_base,
+           (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
+           (char *) &s1->last_time_base);
+
+    // B-frame info
+    s->max_b_frames = s1->max_b_frames;
+    s->low_delay    = s1->low_delay;
+    s->droppable    = s1->droppable;
+
+    // DivX handling (doesn't work)
+    s->divx_packed  = s1->divx_packed;
+
+    if (s1->bitstream_buffer) {
+        if (s1->bitstream_buffer_size +
+            AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
+            av_fast_malloc(&s->bitstream_buffer,
+                           &s->allocated_bitstream_buffer_size,
+                           s1->allocated_bitstream_buffer_size);
+            if (!s->bitstream_buffer) {
+                s->bitstream_buffer_size = 0;
+                return AVERROR(ENOMEM);
+            }
+        }
+        s->bitstream_buffer_size = s1->bitstream_buffer_size;
+        memcpy(s->bitstream_buffer, s1->bitstream_buffer,
+               s1->bitstream_buffer_size);
+        memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
+               AV_INPUT_BUFFER_PADDING_SIZE);
+    }
+
+    // linesize-dependent scratch buffer allocation
+    if (!s->sc.edge_emu_buffer)
+        if (s1->linesize) {
+            if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
+                                        &s->sc, s1->linesize) < 0) {
+                av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
+                       "scratch buffers.\n");
+                return AVERROR(ENOMEM);
+            }
+        } else {
+            av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
+                   "be allocated due to unknown size.\n");
+        }
+
+    // MPEG-2/interlacing info
+    memcpy(&s->progressive_sequence, &s1->progressive_sequence,
+           (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
+
+    if (!s1->first_field) {
+        s->last_pict_type = s1->pict_type;
+        if (s1->current_picture_ptr)
+            s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
+    }
+
+    return 0;
+}
+
+/**
+ * Set the given MpegEncContext to common defaults
+ * (same for encoding and decoding).
+ * The changed fields will not depend upon the
+ * prior state of the MpegEncContext.
+ */
+void ff_mpv_common_defaults(MpegEncContext *s)
+{
+    s->y_dc_scale_table      =
+    s->c_dc_scale_table      = ff_mpeg1_dc_scale_table;
+    s->chroma_qscale_table   = ff_default_chroma_qscale_table;
+    s->progressive_frame     = 1;
+    s->progressive_sequence  = 1;
+    s->picture_structure     = PICT_FRAME;
+
+    s->coded_picture_number  = 0;
+    s->picture_number        = 0;
+
+    s->f_code                = 1;
+    s->b_code                = 1;
+
+    s->slice_context_count   = 1;
+}
+
+/**
+ * Set the given MpegEncContext to defaults for decoding.
+ * the changed fields will not depend upon
+ * the prior state of the MpegEncContext.
+ */
+void ff_mpv_decode_defaults(MpegEncContext *s)
+{
+    ff_mpv_common_defaults(s);
+}
+
+void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
+{
+    s->avctx           = avctx;
+    s->width           = avctx->coded_width;
+    s->height          = avctx->coded_height;
+    s->codec_id        = avctx->codec->id;
+    s->workaround_bugs = avctx->workaround_bugs;
+
+    /* convert fourcc to upper case */
+    s->codec_tag          = avpriv_toupper4(avctx->codec_tag);
+}
+
+/**
+ * Initialize and allocates MpegEncContext fields dependent on the resolution.
+ */
+static int init_context_frame(MpegEncContext *s)
+{
+    int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
+
+    s->mb_width   = (s->width + 15) / 16;
+    s->mb_stride  = s->mb_width + 1;
+    s->b8_stride  = s->mb_width * 2 + 1;
+    mb_array_size = s->mb_height * s->mb_stride;
+    mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
+
+    /* set default edge pos, will be overridden
+     * in decode_header if needed */
+    s->h_edge_pos = s->mb_width * 16;
+    s->v_edge_pos = s->mb_height * 16;
+
+    s->mb_num     = s->mb_width * s->mb_height;
+
+    s->block_wrap[0] =
+    s->block_wrap[1] =
+    s->block_wrap[2] =
+    s->block_wrap[3] = s->b8_stride;
+    s->block_wrap[4] =
+    s->block_wrap[5] = s->mb_stride;
+
+    y_size  = s->b8_stride * (2 * s->mb_height + 1);
+    c_size  = s->mb_stride * (s->mb_height + 1);
+    yc_size = y_size + 2   * c_size;
+
+    if (s->mb_height & 1)
+        yc_size += 2*s->b8_stride + 2*s->mb_stride;
+
+    FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int),
+                      fail); // error resilience code looks cleaner with this
+    for (y = 0; y < s->mb_height; y++)
+        for (x = 0; x < s->mb_width; x++)
+            s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
+
+    s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
+
+    if (s->encoding) {
+        /* Allocate MV tables */
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base,                 mv_table_size * 2 * sizeof(int16_t), fail)
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base,            mv_table_size * 2 * sizeof(int16_t), fail)
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base,            mv_table_size * 2 * sizeof(int16_t), fail)
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base,      mv_table_size * 2 * sizeof(int16_t), fail)
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base,      mv_table_size * 2 * sizeof(int16_t), fail)
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base,          mv_table_size * 2 * sizeof(int16_t), fail)
+        s->p_mv_table            = s->p_mv_table_base + s->mb_stride + 1;
+        s->b_forw_mv_table       = s->b_forw_mv_table_base + s->mb_stride + 1;
+        s->b_back_mv_table       = s->b_back_mv_table_base + s->mb_stride + 1;
+        s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
+        s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
+        s->b_direct_mv_table     = s->b_direct_mv_table_base + s->mb_stride + 1;
+
+        /* Allocate MB type table */
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
+
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
+
+        FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
+                         mb_array_size * sizeof(float), fail);
+        FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
+                         mb_array_size * sizeof(float), fail);
+
+    }
+
+    if (s->codec_id == AV_CODEC_ID_MPEG4 ||
+        (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
+        /* interlaced direct mode decoding tables */
+        for (i = 0; i < 2; i++) {
+            int j, k;
+            for (j = 0; j < 2; j++) {
+                for (k = 0; k < 2; k++) {
+                    FF_ALLOCZ_OR_GOTO(s->avctx,
+                                      s->b_field_mv_table_base[i][j][k],
+                                      mv_table_size * 2 * sizeof(int16_t),
+                                      fail);
+                    s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
+                                                   s->mb_stride + 1;
+                }
+                FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
+                FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
+                s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
+            }
+            FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
+        }
+    }
+    if (s->out_format == FMT_H263) {
+        /* cbp values */
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
+        s->coded_block = s->coded_block_base + s->b8_stride + 1;
+
+        /* cbp, ac_pred, pred_dir */
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table     , mb_array_size * sizeof(uint8_t), fail);
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
+    }
+
+    if (s->h263_pred || s->h263_plus || !s->encoding) {
+        /* dc values */
+        // MN: we need these for error resilience of intra-frames
+        FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
+        s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
+        s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
+        s->dc_val[2] = s->dc_val[1] + c_size;
+        for (i = 0; i < yc_size; i++)
+            s->dc_val_base[i] = 1024;
+    }
+
+    /* which mb is an intra block */
+    FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
+    memset(s->mbintra_table, 1, mb_array_size);
+
+    /* init macroblock skip table */
+    FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
+    // Note the + 1 is for a quicker MPEG-4 slice_end detection
+
+    return ff_mpeg_er_init(s);
+fail:
+    return AVERROR(ENOMEM);
+}
+
+static void clear_context(MpegEncContext *s)
+{
+    int i, j, k;
+
+    memset(&s->next_picture, 0, sizeof(s->next_picture));
+    memset(&s->last_picture, 0, sizeof(s->last_picture));
+    memset(&s->current_picture, 0, sizeof(s->current_picture));
+    memset(&s->new_picture, 0, sizeof(s->new_picture));
+
+    memset(s->thread_context, 0, sizeof(s->thread_context));
+
+    s->me.map = NULL;
+    s->me.score_map = NULL;
+    s->dct_error_sum = NULL;
+    s->block = NULL;
+    s->blocks = NULL;
+    s->block32 = NULL;
+    memset(s->pblocks, 0, sizeof(s->pblocks));
+    s->dpcm_direction = 0;
+    s->dpcm_macroblock = NULL;
+    s->ac_val_base = NULL;
+    s->ac_val[0] =
+    s->ac_val[1] =
+    s->ac_val[2] =NULL;
+    s->sc.edge_emu_buffer = NULL;
+    s->me.scratchpad = NULL;
+    s->me.temp =
+    s->sc.rd_scratchpad =
+    s->sc.b_scratchpad =
+    s->sc.obmc_scratchpad = NULL;
+
+
+    s->bitstream_buffer = NULL;
+    s->allocated_bitstream_buffer_size = 0;
+    s->picture          = NULL;
+    s->mb_type          = NULL;
+    s->p_mv_table_base  = NULL;
+    s->b_forw_mv_table_base = NULL;
+    s->b_back_mv_table_base = NULL;
+    s->b_bidir_forw_mv_table_base = NULL;
+    s->b_bidir_back_mv_table_base = NULL;
+    s->b_direct_mv_table_base = NULL;
+    s->p_mv_table            = NULL;
+    s->b_forw_mv_table       = NULL;
+    s->b_back_mv_table       = NULL;
+    s->b_bidir_forw_mv_table = NULL;
+    s->b_bidir_back_mv_table = NULL;
+    s->b_direct_mv_table     = NULL;
+    for (i = 0; i < 2; i++) {
+        for (j = 0; j < 2; j++) {
+            for (k = 0; k < 2; k++) {
+                s->b_field_mv_table_base[i][j][k] = NULL;
+                s->b_field_mv_table[i][j][k] = NULL;
+            }
+            s->b_field_select_table[i][j] = NULL;
+            s->p_field_mv_table_base[i][j] = NULL;
+            s->p_field_mv_table[i][j] = NULL;
+        }
+        s->p_field_select_table[i] = NULL;
+    }
+
+    s->dc_val_base = NULL;
+    s->coded_block_base = NULL;
+    s->mbintra_table = NULL;
+    s->cbp_table = NULL;
+    s->pred_dir_table = NULL;
+
+    s->mbskip_table = NULL;
+
+    s->er.error_status_table = NULL;
+    s->er.er_temp_buffer = NULL;
+    s->mb_index2xy = NULL;
+    s->lambda_table = NULL;
+
+    s->cplx_tab = NULL;
+    s->bits_tab = NULL;
+}
+
+/**
+ * init common structure for both encoder and decoder.
+ * this assumes that some variables like width/height are already set
+ */
+av_cold int ff_mpv_common_init(MpegEncContext *s)
+{
+    int i, ret;
+    int nb_slices = (HAVE_THREADS &&
+                     s->avctx->active_thread_type & FF_THREAD_SLICE) ?
+                    s->avctx->thread_count : 1;
+
+    clear_context(s);
+
+    if (s->encoding && s->avctx->slices)
+        nb_slices = s->avctx->slices;
+
+    if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
+        s->mb_height = (s->height + 31) / 32 * 2;
+    else
+        s->mb_height = (s->height + 15) / 16;
+
+    if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
+        av_log(s->avctx, AV_LOG_ERROR,
+               "decoding to AV_PIX_FMT_NONE is not supported.\n");
+        return -1;
+    }
+
+    if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
+        int max_slices;
+        if (s->mb_height)
+            max_slices = FFMIN(MAX_THREADS, s->mb_height);
+        else
+            max_slices = MAX_THREADS;
+        av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
+               " reducing to %d\n", nb_slices, max_slices);
+        nb_slices = max_slices;
+    }
+
+    if ((s->width || s->height) &&
+        av_image_check_size(s->width, s->height, 0, s->avctx))
+        return -1;
+
+    dct_init(s);
+
+    /* set chroma shifts */
+    ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
+                                           &s->chroma_x_shift,
+                                           &s->chroma_y_shift);
+    if (ret)
+        return ret;
+
+    FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
+                      MAX_PICTURE_COUNT * sizeof(Picture), fail);
+    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
+        s->picture[i].f = av_frame_alloc();
+        if (!s->picture[i].f)
+            goto fail;
+    }
+    s->next_picture.f = av_frame_alloc();
+    if (!s->next_picture.f)
+        goto fail;
+    s->last_picture.f = av_frame_alloc();
+    if (!s->last_picture.f)
+        goto fail;
+    s->current_picture.f = av_frame_alloc();
+    if (!s->current_picture.f)
+        goto fail;
+    s->new_picture.f = av_frame_alloc();
+    if (!s->new_picture.f)
+        goto fail;
+
+    if (init_context_frame(s))
+        goto fail;
+
+    s->parse_context.state = -1;
+
+    s->context_initialized = 1;
+    memset(s->thread_context, 0, sizeof(s->thread_context));
+    s->thread_context[0]   = s;
+
+//     if (s->width && s->height) {
+    if (nb_slices > 1) {
+        for (i = 0; i < nb_slices; i++) {
+            if (i) {
+                s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
+                if (!s->thread_context[i])
+                    goto fail;
+            }
+            if (init_duplicate_context(s->thread_context[i]) < 0)
+                goto fail;
+            s->thread_context[i]->start_mb_y =
+                (s->mb_height * (i) + nb_slices / 2) / nb_slices;
+            s->thread_context[i]->end_mb_y   =
+                (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
+        }
+    } else {
+        if (init_duplicate_context(s) < 0)
+            goto fail;
+        s->start_mb_y = 0;
+        s->end_mb_y   = s->mb_height;
+    }
+    s->slice_context_count = nb_slices;
+//     }
+
+    return 0;
+ fail:
+    ff_mpv_common_end(s);
+    return -1;
+}
+
+/**
+ * Frees and resets MpegEncContext fields depending on the resolution.
+ * Is used during resolution changes to avoid a full reinitialization of the
+ * codec.
+ */
+static void free_context_frame(MpegEncContext *s)
+{
+    int i, j, k;
+
+    av_freep(&s->mb_type);
+    av_freep(&s->p_mv_table_base);
+    av_freep(&s->b_forw_mv_table_base);
+    av_freep(&s->b_back_mv_table_base);
+    av_freep(&s->b_bidir_forw_mv_table_base);
+    av_freep(&s->b_bidir_back_mv_table_base);
+    av_freep(&s->b_direct_mv_table_base);
+    s->p_mv_table            = NULL;
+    s->b_forw_mv_table       = NULL;
+    s->b_back_mv_table       = NULL;
+    s->b_bidir_forw_mv_table = NULL;
+    s->b_bidir_back_mv_table = NULL;
+    s->b_direct_mv_table     = NULL;
+    for (i = 0; i < 2; i++) {
+        for (j = 0; j < 2; j++) {
+            for (k = 0; k < 2; k++) {
+                av_freep(&s->b_field_mv_table_base[i][j][k]);
+                s->b_field_mv_table[i][j][k] = NULL;
+            }
+            av_freep(&s->b_field_select_table[i][j]);
+            av_freep(&s->p_field_mv_table_base[i][j]);
+            s->p_field_mv_table[i][j] = NULL;
+        }
+        av_freep(&s->p_field_select_table[i]);
+    }
+
+    av_freep(&s->dc_val_base);
+    av_freep(&s->coded_block_base);
+    av_freep(&s->mbintra_table);
+    av_freep(&s->cbp_table);
+    av_freep(&s->pred_dir_table);
+
+    av_freep(&s->mbskip_table);
+
+    av_freep(&s->er.error_status_table);
+    av_freep(&s->er.er_temp_buffer);
+    av_freep(&s->mb_index2xy);
+    av_freep(&s->lambda_table);
+
+    av_freep(&s->cplx_tab);
+    av_freep(&s->bits_tab);
+
+    s->linesize = s->uvlinesize = 0;
+}
+
+int ff_mpv_common_frame_size_change(MpegEncContext *s)
+{
+    int i, err = 0;
+
+    if (!s->context_initialized)
+        return AVERROR(EINVAL);
+
+    if (s->slice_context_count > 1) {
+        for (i = 0; i < s->slice_context_count; i++) {
+            free_duplicate_context(s->thread_context[i]);
+        }
+        for (i = 1; i < s->slice_context_count; i++) {
+            av_freep(&s->thread_context[i]);
+        }
+    } else
+        free_duplicate_context(s);
+
+    free_context_frame(s);
+
+    if (s->picture)
+        for (i = 0; i < MAX_PICTURE_COUNT; i++) {
+                s->picture[i].needs_realloc = 1;
+        }
+
+    s->last_picture_ptr         =
+    s->next_picture_ptr         =
+    s->current_picture_ptr      = NULL;
+
+    // init
+    if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
+        s->mb_height = (s->height + 31) / 32 * 2;
+    else
+        s->mb_height = (s->height + 15) / 16;
+
+    if ((s->width || s->height) &&
+        (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
+        goto fail;
+
+    if ((err = init_context_frame(s)))
+        goto fail;
+
+    memset(s->thread_context, 0, sizeof(s->thread_context));
+    s->thread_context[0]   = s;
+
+    if (s->width && s->height) {
+        int nb_slices = s->slice_context_count;
+        if (nb_slices > 1) {
+            for (i = 0; i < nb_slices; i++) {
+                if (i) {
+                    s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
+                    if (!s->thread_context[i]) {
+                        err = AVERROR(ENOMEM);
+                        goto fail;
+                    }
+                }
+                if ((err = init_duplicate_context(s->thread_context[i])) < 0)
+                    goto fail;
+                s->thread_context[i]->start_mb_y =
+                    (s->mb_height * (i) + nb_slices / 2) / nb_slices;
+                s->thread_context[i]->end_mb_y   =
+                    (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
+            }
+        } else {
+            err = init_duplicate_context(s);
+            if (err < 0)
+                goto fail;
+            s->start_mb_y = 0;
+            s->end_mb_y   = s->mb_height;
+        }
+        s->slice_context_count = nb_slices;
+    }
+
+    return 0;
+ fail:
+    ff_mpv_common_end(s);
+    return err;
+}
+
+/* init common structure for both encoder and decoder */
+void ff_mpv_common_end(MpegEncContext *s)
+{
+    int i;
+
+    if (!s)
+        return ;
+
+    if (s->slice_context_count > 1) {
+        for (i = 0; i < s->slice_context_count; i++) {
+            free_duplicate_context(s->thread_context[i]);
+        }
+        for (i = 1; i < s->slice_context_count; i++) {
+            av_freep(&s->thread_context[i]);
+        }
+        s->slice_context_count = 1;
+    } else free_duplicate_context(s);
+
+    av_freep(&s->parse_context.buffer);
+    s->parse_context.buffer_size = 0;
+
+    av_freep(&s->bitstream_buffer);
+    s->allocated_bitstream_buffer_size = 0;
+
+    if (s->picture) {
+        for (i = 0; i < MAX_PICTURE_COUNT; i++) {
+            ff_free_picture_tables(&s->picture[i]);
+            ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
+            av_frame_free(&s->picture[i].f);
+        }
+    }
+    av_freep(&s->picture);
+    ff_free_picture_tables(&s->last_picture);
+    ff_mpeg_unref_picture(s->avctx, &s->last_picture);
+    av_frame_free(&s->last_picture.f);
+    ff_free_picture_tables(&s->current_picture);
+    ff_mpeg_unref_picture(s->avctx, &s->current_picture);
+    av_frame_free(&s->current_picture.f);
+    ff_free_picture_tables(&s->next_picture);
+    ff_mpeg_unref_picture(s->avctx, &s->next_picture);
+    av_frame_free(&s->next_picture.f);
+    ff_free_picture_tables(&s->new_picture);
+    ff_mpeg_unref_picture(s->avctx, &s->new_picture);
+    av_frame_free(&s->new_picture.f);
+
+    free_context_frame(s);
+
+    s->context_initialized      = 0;
+    s->last_picture_ptr         =
+    s->next_picture_ptr         =
+    s->current_picture_ptr      = NULL;
+    s->linesize = s->uvlinesize = 0;
+}
+
+
+static void gray_frame(AVFrame *frame)
+{
+    int i, h_chroma_shift, v_chroma_shift;
+
+    av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
+
+    for(i=0; i<frame->height; i++)
+        memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
+    for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
+        memset(frame->data[1] + frame->linesize[1]*i,
+               0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
+        memset(frame->data[2] + frame->linesize[2]*i,
+               0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
+    }
+}
+
+/**
+ * generic function called after decoding
+ * the header and before a frame is decoded.
+ */
+int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
+{
+    int i, ret;
+    Picture *pic;
+    s->mb_skipped = 0;
+
+    if (!ff_thread_can_start_frame(avctx)) {
+        av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
+        return -1;
+    }
+
+    /* mark & release old frames */
+    if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
+        s->last_picture_ptr != s->next_picture_ptr &&
+        s->last_picture_ptr->f->buf[0]) {
+        ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
+    }
+
+    /* release forgotten pictures */
+    /* if (MPEG-124 / H.263) */
+    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
+        if (&s->picture[i] != s->last_picture_ptr &&
+            &s->picture[i] != s->next_picture_ptr &&
+            s->picture[i].reference && !s->picture[i].needs_realloc) {
+            ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
+        }
+    }
+
+    ff_mpeg_unref_picture(s->avctx, &s->current_picture);
+    ff_mpeg_unref_picture(s->avctx, &s->last_picture);
+    ff_mpeg_unref_picture(s->avctx, &s->next_picture);
+
+    /* release non reference frames */
+    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
+        if (!s->picture[i].reference)
+            ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
+    }
+
+    if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
+        // we already have an unused image
+        // (maybe it was set before reading the header)
+        pic = s->current_picture_ptr;
+    } else {
+        i   = ff_find_unused_picture(s->avctx, s->picture, 0);
+        if (i < 0) {
+            av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
+            return i;
+        }
+        pic = &s->picture[i];
+    }
+
+    pic->reference = 0;
+    if (!s->droppable) {
+        if (s->pict_type != AV_PICTURE_TYPE_B)
+            pic->reference = 3;
+    }
+
+    pic->f->coded_picture_number = s->coded_picture_number++;
+
+    if (alloc_picture(s, pic, 0) < 0)
+        return -1;
+
+    s->current_picture_ptr = pic;
+    // FIXME use only the vars from current_pic
+    s->current_picture_ptr->f->top_field_first = s->top_field_first;
+    if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
+        s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
+        if (s->picture_structure != PICT_FRAME)
+            s->current_picture_ptr->f->top_field_first =
+                (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
+    }
+    s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
+                                                 !s->progressive_sequence;
+    s->current_picture_ptr->field_picture      =  s->picture_structure != PICT_FRAME;
+
+    s->current_picture_ptr->f->pict_type = s->pict_type;
+    // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
+    //     s->current_picture_ptr->quality = s->new_picture_ptr->quality;
+    s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
+
+    if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
+                                   s->current_picture_ptr)) < 0)
+        return ret;
+
+    if (s->pict_type != AV_PICTURE_TYPE_B) {
+        s->last_picture_ptr = s->next_picture_ptr;
+        if (!s->droppable)
+            s->next_picture_ptr = s->current_picture_ptr;
+    }
+    ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
+            s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
+            s->last_picture_ptr    ? s->last_picture_ptr->f->data[0]    : NULL,
+            s->next_picture_ptr    ? s->next_picture_ptr->f->data[0]    : NULL,
+            s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
+            s->pict_type, s->droppable);
+
+    if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
+        (s->pict_type != AV_PICTURE_TYPE_I)) {
+        int h_chroma_shift, v_chroma_shift;
+        av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
+                                         &h_chroma_shift, &v_chroma_shift);
+        if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
+            av_log(avctx, AV_LOG_DEBUG,
+                   "allocating dummy last picture for B frame\n");
+        else if (s->pict_type != AV_PICTURE_TYPE_I)
+            av_log(avctx, AV_LOG_ERROR,
+                   "warning: first frame is no keyframe\n");
+
+        /* Allocate a dummy frame */
+        i = ff_find_unused_picture(s->avctx, s->picture, 0);
+        if (i < 0) {
+            av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
+            return i;
+        }
+        s->last_picture_ptr = &s->picture[i];
+
+        s->last_picture_ptr->reference   = 3;
+        s->last_picture_ptr->f->key_frame = 0;
+        s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
+
+        if (alloc_picture(s, s->last_picture_ptr, 0) < 0) {
+            s->last_picture_ptr = NULL;
+            return -1;
+        }
+
+        if (!avctx->hwaccel) {
+            for(i=0; i<avctx->height; i++)
+                memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
+                       0x80, avctx->width);
+            if (s->last_picture_ptr->f->data[2]) {
+                for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
+                    memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
+                        0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
+                    memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
+                        0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
+                }
+            }
+
+            if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
+                for(i=0; i<avctx->height; i++)
+                memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
+            }
+        }
+
+        ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
+        ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
+    }
+    if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
+        s->pict_type == AV_PICTURE_TYPE_B) {
+        /* Allocate a dummy frame */
+        i = ff_find_unused_picture(s->avctx, s->picture, 0);
+        if (i < 0) {
+            av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
+            return i;
+        }
+        s->next_picture_ptr = &s->picture[i];
+
+        s->next_picture_ptr->reference   = 3;
+        s->next_picture_ptr->f->key_frame = 0;
+        s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
+
+        if (alloc_picture(s, s->next_picture_ptr, 0) < 0) {
+            s->next_picture_ptr = NULL;
+            return -1;
+        }
+        ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
+        ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
+    }
+
+#if 0 // BUFREF-FIXME
+    memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
+    memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
+#endif
+    if (s->last_picture_ptr) {
+        if (s->last_picture_ptr->f->buf[0] &&
+            (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
+                                       s->last_picture_ptr)) < 0)
+            return ret;
+    }
+    if (s->next_picture_ptr) {
+        if (s->next_picture_ptr->f->buf[0] &&
+            (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
+                                       s->next_picture_ptr)) < 0)
+            return ret;
+    }
+
+    av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
+                                                 s->last_picture_ptr->f->buf[0]));
+
+    if (s->picture_structure!= PICT_FRAME) {
+        int i;
+        for (i = 0; i < 4; i++) {
+            if (s->picture_structure == PICT_BOTTOM_FIELD) {
+                s->current_picture.f->data[i] +=
+                    s->current_picture.f->linesize[i];
+            }
+            s->current_picture.f->linesize[i] *= 2;
+            s->last_picture.f->linesize[i]    *= 2;
+            s->next_picture.f->linesize[i]    *= 2;
+        }
+    }
+
+    /* set dequantizer, we can't do it during init as
+     * it might change for MPEG-4 and we can't do it in the header
+     * decode as init is not called for MPEG-4 there yet */
+    if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
+        s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
+        s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
+    } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
+        s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
+        s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
+    } else {
+        s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
+        s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
+    }
+
+    if (s->avctx->debug & FF_DEBUG_NOMC) {
+        gray_frame(s->current_picture_ptr->f);
+    }
+
+    return 0;
+}
+
+/* called after a frame has been decoded. */
+void ff_mpv_frame_end(MpegEncContext *s)
+{
+    emms_c();
+
+    if (s->current_picture.reference)
+        ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
+}
+
+void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
+{
+    ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
+                         p->qscale_table, p->motion_val, &s->low_delay,
+                         s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
+}
+
+int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
+{
+    AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
+    int offset = 2*s->mb_stride + 1;
+    if(!ref)
+        return AVERROR(ENOMEM);
+    av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
+    ref->size -= offset;
+    ref->data += offset;
+    return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
+}
+
+static inline int hpel_motion_lowres(MpegEncContext *s,
+                                     uint8_t *dest, uint8_t *src,
+                                     int field_based, int field_select,
+                                     int src_x, int src_y,
+                                     int width, int height, ptrdiff_t stride,
+                                     int h_edge_pos, int v_edge_pos,
+                                     int w, int h, h264_chroma_mc_func *pix_op,
+                                     int motion_x, int motion_y)
+{
+    const int lowres   = s->avctx->lowres;
+    const int op_index = FFMIN(lowres, 3);
+    const int s_mask   = (2 << lowres) - 1;
+    int emu = 0;
+    int sx, sy;
+
+    if (s->quarter_sample) {
+        motion_x /= 2;
+        motion_y /= 2;
+    }
+
+    sx = motion_x & s_mask;
+    sy = motion_y & s_mask;
+    src_x += motion_x >> lowres + 1;
+    src_y += motion_y >> lowres + 1;
+
+    src   += src_y * stride + src_x;
+
+    if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w,                 0) ||
+        (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
+        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
+                                 s->linesize, s->linesize,
+                                 w + 1, (h + 1) << field_based,
+                                 src_x, src_y   << field_based,
+                                 h_edge_pos, v_edge_pos);
+        src = s->sc.edge_emu_buffer;
+        emu = 1;
+    }
+
+    sx = (sx << 2) >> lowres;
+    sy = (sy << 2) >> lowres;
+    if (field_select)
+        src += s->linesize;
+    pix_op[op_index](dest, src, stride, h, sx, sy);
+    return emu;
+}
+
+/* apply one mpeg motion vector to the three components */
+static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
+                                                uint8_t *dest_y,
+                                                uint8_t *dest_cb,
+                                                uint8_t *dest_cr,
+                                                int field_based,
+                                                int bottom_field,
+                                                int field_select,
+                                                uint8_t **ref_picture,
+                                                h264_chroma_mc_func *pix_op,
+                                                int motion_x, int motion_y,
+                                                int h, int mb_y)
+{
+    uint8_t *ptr_y, *ptr_cb, *ptr_cr;
+    int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
+    ptrdiff_t uvlinesize, linesize;
+    const int lowres     = s->avctx->lowres;
+    const int op_index   = FFMIN(lowres-1+s->chroma_x_shift, 3);
+    const int block_s    = 8>>lowres;
+    const int s_mask     = (2 << lowres) - 1;
+    const int h_edge_pos = s->h_edge_pos >> lowres;
+    const int v_edge_pos = s->v_edge_pos >> lowres;
+    linesize   = s->current_picture.f->linesize[0] << field_based;
+    uvlinesize = s->current_picture.f->linesize[1] << field_based;
+
+    // FIXME obviously not perfect but qpel will not work in lowres anyway
+    if (s->quarter_sample) {
+        motion_x /= 2;
+        motion_y /= 2;
+    }
+
+    if(field_based){
+        motion_y += (bottom_field - field_select)*((1 << lowres)-1);
+    }
+
+    sx = motion_x & s_mask;
+    sy = motion_y & s_mask;
+    src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
+    src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
+
+    if (s->out_format == FMT_H263) {
+        uvsx    = ((motion_x >> 1) & s_mask) | (sx & 1);
+        uvsy    = ((motion_y >> 1) & s_mask) | (sy & 1);
+        uvsrc_x = src_x >> 1;
+        uvsrc_y = src_y >> 1;
+    } else if (s->out_format == FMT_H261) {
+        // even chroma mv's are full pel in H261
+        mx      = motion_x / 4;
+        my      = motion_y / 4;
+        uvsx    = (2 * mx) & s_mask;
+        uvsy    = (2 * my) & s_mask;
+        uvsrc_x = s->mb_x * block_s + (mx >> lowres);
+        uvsrc_y =    mb_y * block_s + (my >> lowres);
+    } else {
+        if(s->chroma_y_shift){
+            mx      = motion_x / 2;
+            my      = motion_y / 2;
+            uvsx    = mx & s_mask;
+            uvsy    = my & s_mask;
+            uvsrc_x = s->mb_x * block_s                 + (mx >> lowres + 1);
+            uvsrc_y =   (mb_y * block_s >> field_based) + (my >> lowres + 1);
+        } else {
+            if(s->chroma_x_shift){
+            //Chroma422
+                mx = motion_x / 2;
+                uvsx = mx & s_mask;
+                uvsy = motion_y & s_mask;
+                uvsrc_y = src_y;
+                uvsrc_x = s->mb_x*block_s               + (mx >> (lowres+1));
+            } else {
+            //Chroma444
+                uvsx = motion_x & s_mask;
+                uvsy = motion_y & s_mask;
+                uvsrc_x = src_x;
+                uvsrc_y = src_y;
+            }
+        }
+    }
+
+    ptr_y  = ref_picture[0] + src_y   * linesize   + src_x;
+    ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
+    ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
+
+    if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s,       0) || uvsrc_y<0 ||
+        (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
+        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
+                                 linesize >> field_based, linesize >> field_based,
+                                 17, 17 + field_based,
+                                src_x, src_y << field_based, h_edge_pos,
+                                v_edge_pos);
+        ptr_y = s->sc.edge_emu_buffer;
+        if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
+            uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
+            uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
+            if (s->workaround_bugs & FF_BUG_IEDGE)
+                vbuf -= s->uvlinesize;
+            s->vdsp.emulated_edge_mc(ubuf,  ptr_cb,
+                                     uvlinesize >> field_based, uvlinesize >> field_based,
+                                     9, 9 + field_based,
+                                    uvsrc_x, uvsrc_y << field_based,
+                                    h_edge_pos >> 1, v_edge_pos >> 1);
+            s->vdsp.emulated_edge_mc(vbuf,  ptr_cr,
+                                     uvlinesize >> field_based,uvlinesize >> field_based,
+                                     9, 9 + field_based,
+                                    uvsrc_x, uvsrc_y << field_based,
+                                    h_edge_pos >> 1, v_edge_pos >> 1);
+            ptr_cb = ubuf;
+            ptr_cr = vbuf;
+        }
+    }
+
+    // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
+    if (bottom_field) {
+        dest_y  += s->linesize;
+        dest_cb += s->uvlinesize;
+        dest_cr += s->uvlinesize;
+    }
+
+    if (field_select) {
+        ptr_y   += s->linesize;
+        ptr_cb  += s->uvlinesize;
+        ptr_cr  += s->uvlinesize;
+    }
+
+    sx = (sx << 2) >> lowres;
+    sy = (sy << 2) >> lowres;
+    pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
+
+    if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
+        int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
+        uvsx = (uvsx << 2) >> lowres;
+        uvsy = (uvsy << 2) >> lowres;
+        if (hc) {
+            pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
+            pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
+        }
+    }
+    // FIXME h261 lowres loop filter
+}
+
+static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
+                                            uint8_t *dest_cb, uint8_t *dest_cr,
+                                            uint8_t **ref_picture,
+                                            h264_chroma_mc_func * pix_op,
+                                            int mx, int my)
+{
+    const int lowres     = s->avctx->lowres;
+    const int op_index   = FFMIN(lowres, 3);
+    const int block_s    = 8 >> lowres;
+    const int s_mask     = (2 << lowres) - 1;
+    const int h_edge_pos = s->h_edge_pos >> lowres + 1;
+    const int v_edge_pos = s->v_edge_pos >> lowres + 1;
+    int emu = 0, src_x, src_y, sx, sy;
+    ptrdiff_t offset;
+    uint8_t *ptr;
+
+    if (s->quarter_sample) {
+        mx /= 2;
+        my /= 2;
+    }
+
+    /* In case of 8X8, we construct a single chroma motion vector
+       with a special rounding */
+    mx = ff_h263_round_chroma(mx);
+    my = ff_h263_round_chroma(my);
+
+    sx = mx & s_mask;
+    sy = my & s_mask;
+    src_x = s->mb_x * block_s + (mx >> lowres + 1);
+    src_y = s->mb_y * block_s + (my >> lowres + 1);
+
+    offset = src_y * s->uvlinesize + src_x;
+    ptr = ref_picture[1] + offset;
+    if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
+        (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
+        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
+                                 s->uvlinesize, s->uvlinesize,
+                                 9, 9,
+                                 src_x, src_y, h_edge_pos, v_edge_pos);
+        ptr = s->sc.edge_emu_buffer;
+        emu = 1;
+    }
+    sx = (sx << 2) >> lowres;
+    sy = (sy << 2) >> lowres;
+    pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
+
+    ptr = ref_picture[2] + offset;
+    if (emu) {
+        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
+                                 s->uvlinesize, s->uvlinesize,
+                                 9, 9,
+                                 src_x, src_y, h_edge_pos, v_edge_pos);
+        ptr = s->sc.edge_emu_buffer;
+    }
+    pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
+}
+
+/**
+ * motion compensation of a single macroblock
+ * @param s context
+ * @param dest_y luma destination pointer
+ * @param dest_cb chroma cb/u destination pointer
+ * @param dest_cr chroma cr/v destination pointer
+ * @param dir direction (0->forward, 1->backward)
+ * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
+ * @param pix_op halfpel motion compensation function (average or put normally)
+ * the motion vectors are taken from s->mv and the MV type from s->mv_type
+ */
+static inline void MPV_motion_lowres(MpegEncContext *s,
+                                     uint8_t *dest_y, uint8_t *dest_cb,
+                                     uint8_t *dest_cr,
+                                     int dir, uint8_t **ref_picture,
+                                     h264_chroma_mc_func *pix_op)
+{
+    int mx, my;
+    int mb_x, mb_y, i;
+    const int lowres  = s->avctx->lowres;
+    const int block_s = 8 >>lowres;
+
+    mb_x = s->mb_x;
+    mb_y = s->mb_y;
+
+    switch (s->mv_type) {
+    case MV_TYPE_16X16:
+        mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
+                           0, 0, 0,
+                           ref_picture, pix_op,
+                           s->mv[dir][0][0], s->mv[dir][0][1],
+                           2 * block_s, mb_y);
+        break;
+    case MV_TYPE_8X8:
+        mx = 0;
+        my = 0;
+        for (i = 0; i < 4; i++) {
+            hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
+                               s->linesize) * block_s,
+                               ref_picture[0], 0, 0,
+                               (2 * mb_x + (i & 1)) * block_s,
+                               (2 * mb_y + (i >> 1)) * block_s,
+                               s->width, s->height, s->linesize,
+                               s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
+                               block_s, block_s, pix_op,
+                               s->mv[dir][i][0], s->mv[dir][i][1]);
+
+            mx += s->mv[dir][i][0];
+            my += s->mv[dir][i][1];
+        }
+
+        if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
+            chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
+                                     pix_op, mx, my);
+        break;
+    case MV_TYPE_FIELD:
+        if (s->picture_structure == PICT_FRAME) {
+            /* top field */
+            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
+                               1, 0, s->field_select[dir][0],
+                               ref_picture, pix_op,
+                               s->mv[dir][0][0], s->mv[dir][0][1],
+                               block_s, mb_y);
+            /* bottom field */
+            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
+                               1, 1, s->field_select[dir][1],
+                               ref_picture, pix_op,
+                               s->mv[dir][1][0], s->mv[dir][1][1],
+                               block_s, mb_y);
+        } else {
+            if (s->picture_structure != s->field_select[dir][0] + 1 &&
+                s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
+                ref_picture = s->current_picture_ptr->f->data;
+
+            }
+            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
+                               0, 0, s->field_select[dir][0],
+                               ref_picture, pix_op,
+                               s->mv[dir][0][0],
+                               s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
+            }
+        break;
+    case MV_TYPE_16X8:
+        for (i = 0; i < 2; i++) {
+            uint8_t **ref2picture;
+
+            if (s->picture_structure == s->field_select[dir][i] + 1 ||
+                s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
+                ref2picture = ref_picture;
+            } else {
+                ref2picture = s->current_picture_ptr->f->data;
+            }
+
+            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
+                               0, 0, s->field_select[dir][i],
+                               ref2picture, pix_op,
+                               s->mv[dir][i][0], s->mv[dir][i][1] +
+                               2 * block_s * i, block_s, mb_y >> 1);
+
+            dest_y  +=  2 * block_s *  s->linesize;
+            dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
+            dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
+        }
+        break;
+    case MV_TYPE_DMV:
+        if (s->picture_structure == PICT_FRAME) {
+            for (i = 0; i < 2; i++) {
+                int j;
+                for (j = 0; j < 2; j++) {
+                    mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
+                                       1, j, j ^ i,
+                                       ref_picture, pix_op,
+                                       s->mv[dir][2 * i + j][0],
+                                       s->mv[dir][2 * i + j][1],
+                                       block_s, mb_y);
+                }
+                pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
+            }
+        } else {
+            for (i = 0; i < 2; i++) {
+                mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
+                                   0, 0, s->picture_structure != i + 1,
+                                   ref_picture, pix_op,
+                                   s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
+                                   2 * block_s, mb_y >> 1);
+
+                // after put we make avg of the same block
+                pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
+
+                // opposite parity is always in the same
+                // frame if this is second field
+                if (!s->first_field) {
+                    ref_picture = s->current_picture_ptr->f->data;
+                }
+            }
+        }
+        break;
+    default:
+        av_assert2(0);
+    }
+}
+
+/**
+ * find the lowest MB row referenced in the MVs
+ */
+static int lowest_referenced_row(MpegEncContext *s, int dir)
+{
+    int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
+    int my, off, i, mvs;
+
+    if (s->picture_structure != PICT_FRAME || s->mcsel)
+        goto unhandled;
+
+    switch (s->mv_type) {
+        case MV_TYPE_16X16:
+            mvs = 1;
+            break;
+        case MV_TYPE_16X8:
+            mvs = 2;
+            break;
+        case MV_TYPE_8X8:
+            mvs = 4;
+            break;
+        default:
+            goto unhandled;
+    }
+
+    for (i = 0; i < mvs; i++) {
+        my = s->mv[dir][i][1];
+        my_max = FFMAX(my_max, my);
+        my_min = FFMIN(my_min, my);
+    }
+
+    off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
+
+    return av_clip(s->mb_y + off, 0, s->mb_height - 1);
+unhandled:
+    return s->mb_height-1;
+}
+
+/* put block[] to dest[] */
+static inline void put_dct(MpegEncContext *s,
+                           int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
+{
+    s->dct_unquantize_intra(s, block, i, qscale);
+    s->idsp.idct_put(dest, line_size, block);
+}
+
+/* add block[] to dest[] */
+static inline void add_dct(MpegEncContext *s,
+                           int16_t *block, int i, uint8_t *dest, int line_size)
+{
+    if (s->block_last_index[i] >= 0) {
+        s->idsp.idct_add(dest, line_size, block);
+    }
+}
+
+static inline void add_dequant_dct(MpegEncContext *s,
+                           int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
+{
+    if (s->block_last_index[i] >= 0) {
+        s->dct_unquantize_inter(s, block, i, qscale);
+
+        s->idsp.idct_add(dest, line_size, block);
+    }
+}
+
+/**
+ * Clean dc, ac, coded_block for the current non-intra MB.
+ */
+void ff_clean_intra_table_entries(MpegEncContext *s)
+{
+    int wrap = s->b8_stride;
+    int xy = s->block_index[0];
+
+    s->dc_val[0][xy           ] =
+    s->dc_val[0][xy + 1       ] =
+    s->dc_val[0][xy     + wrap] =
+    s->dc_val[0][xy + 1 + wrap] = 1024;
+    /* ac pred */
+    memset(s->ac_val[0][xy       ], 0, 32 * sizeof(int16_t));
+    memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
+    if (s->msmpeg4_version>=3) {
+        s->coded_block[xy           ] =
+        s->coded_block[xy + 1       ] =
+        s->coded_block[xy     + wrap] =
+        s->coded_block[xy + 1 + wrap] = 0;
+    }
+    /* chroma */
+    wrap = s->mb_stride;
+    xy = s->mb_x + s->mb_y * wrap;
+    s->dc_val[1][xy] =
+    s->dc_val[2][xy] = 1024;
+    /* ac pred */
+    memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
+    memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
+
+    s->mbintra_table[xy]= 0;
+}
+
+/* generic function called after a macroblock has been parsed by the
+   decoder or after it has been encoded by the encoder.
+
+   Important variables used:
+   s->mb_intra : true if intra macroblock
+   s->mv_dir   : motion vector direction
+   s->mv_type  : motion vector type
+   s->mv       : motion vector
+   s->interlaced_dct : true if interlaced dct used (mpeg2)
+ */
+static av_always_inline
+void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
+                            int lowres_flag, int is_mpeg12)
+{
+    const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
+
+    if (CONFIG_XVMC &&
+        s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
+        s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
+        return;
+    }
+
+    if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
+       /* print DCT coefficients */
+       int i,j;
+       av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
+       for(i=0; i<6; i++){
+           for(j=0; j<64; j++){
+               av_log(s->avctx, AV_LOG_DEBUG, "%5d",
+                      block[i][s->idsp.idct_permutation[j]]);
+           }
+           av_log(s->avctx, AV_LOG_DEBUG, "\n");
+       }
+    }
+
+    s->current_picture.qscale_table[mb_xy] = s->qscale;
+
+    /* update DC predictors for P macroblocks */
+    if (!s->mb_intra) {
+        if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
+            if(s->mbintra_table[mb_xy])
+                ff_clean_intra_table_entries(s);
+        } else {
+            s->last_dc[0] =
+            s->last_dc[1] =
+            s->last_dc[2] = 128 << s->intra_dc_precision;
+        }
+    }
+    else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
+        s->mbintra_table[mb_xy]=1;
+
+    if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->frame_skip_threshold || s->frame_skip_factor ||
+        !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
+          s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
+        uint8_t *dest_y, *dest_cb, *dest_cr;
+        int dct_linesize, dct_offset;
+        op_pixels_func (*op_pix)[4];
+        qpel_mc_func (*op_qpix)[16];
+        const int linesize   = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
+        const int uvlinesize = s->current_picture.f->linesize[1];
+        const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
+        const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
+
+        /* avoid copy if macroblock skipped in last frame too */
+        /* skip only during decoding as we might trash the buffers during encoding a bit */
+        if(!s->encoding){
+            uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
+
+            if (s->mb_skipped) {
+                s->mb_skipped= 0;
+                av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
+                *mbskip_ptr = 1;
+            } else if(!s->current_picture.reference) {
+                *mbskip_ptr = 1;
+            } else{
+                *mbskip_ptr = 0; /* not skipped */
+            }
+        }
+
+        dct_linesize = linesize << s->interlaced_dct;
+        dct_offset   = s->interlaced_dct ? linesize : linesize * block_size;
+
+        if(readable){
+            dest_y=  s->dest[0];
+            dest_cb= s->dest[1];
+            dest_cr= s->dest[2];
+        }else{
+            dest_y = s->sc.b_scratchpad;
+            dest_cb= s->sc.b_scratchpad+16*linesize;
+            dest_cr= s->sc.b_scratchpad+32*linesize;
+        }
+
+        if (!s->mb_intra) {
+            /* motion handling */
+            /* decoding or more than one mb_type (MC was already done otherwise) */
+            if(!s->encoding){
+
+                if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
+                    if (s->mv_dir & MV_DIR_FORWARD) {
+                        ff_thread_await_progress(&s->last_picture_ptr->tf,
+                                                 lowest_referenced_row(s, 0),
+                                                 0);
+                    }
+                    if (s->mv_dir & MV_DIR_BACKWARD) {
+                        ff_thread_await_progress(&s->next_picture_ptr->tf,
+                                                 lowest_referenced_row(s, 1),
+                                                 0);
+                    }
+                }
+
+                if(lowres_flag){
+                    h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
+
+                    if (s->mv_dir & MV_DIR_FORWARD) {
+                        MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
+                        op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
+                    }
+                    if (s->mv_dir & MV_DIR_BACKWARD) {
+                        MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
+                    }
+                }else{
+                    op_qpix = s->me.qpel_put;
+                    if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
+                        op_pix = s->hdsp.put_pixels_tab;
+                    }else{
+                        op_pix = s->hdsp.put_no_rnd_pixels_tab;
+                    }
+                    if (s->mv_dir & MV_DIR_FORWARD) {
+                        ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
+                        op_pix = s->hdsp.avg_pixels_tab;
+                        op_qpix= s->me.qpel_avg;
+                    }
+                    if (s->mv_dir & MV_DIR_BACKWARD) {
+                        ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
+                    }
+                }
+            }
+
+            /* skip dequant / idct if we are really late ;) */
+            if(s->avctx->skip_idct){
+                if(  (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
+                   ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
+                   || s->avctx->skip_idct >= AVDISCARD_ALL)
+                    goto skip_idct;
+            }
+
+            /* add dct residue */
+            if(s->encoding || !(   s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
+                                || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
+                add_dequant_dct(s, block[0], 0, dest_y                          , dct_linesize, s->qscale);
+                add_dequant_dct(s, block[1], 1, dest_y              + block_size, dct_linesize, s->qscale);
+                add_dequant_dct(s, block[2], 2, dest_y + dct_offset             , dct_linesize, s->qscale);
+                add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
+
+                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
+                    if (s->chroma_y_shift){
+                        add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
+                        add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
+                    }else{
+                        dct_linesize >>= 1;
+                        dct_offset >>=1;
+                        add_dequant_dct(s, block[4], 4, dest_cb,              dct_linesize, s->chroma_qscale);
+                        add_dequant_dct(s, block[5], 5, dest_cr,              dct_linesize, s->chroma_qscale);
+                        add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
+                        add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
+                    }
+                }
+            } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
+                add_dct(s, block[0], 0, dest_y                          , dct_linesize);
+                add_dct(s, block[1], 1, dest_y              + block_size, dct_linesize);
+                add_dct(s, block[2], 2, dest_y + dct_offset             , dct_linesize);
+                add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
+
+                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
+                    if(s->chroma_y_shift){//Chroma420
+                        add_dct(s, block[4], 4, dest_cb, uvlinesize);
+                        add_dct(s, block[5], 5, dest_cr, uvlinesize);
+                    }else{
+                        //chroma422
+                        dct_linesize = uvlinesize << s->interlaced_dct;
+                        dct_offset   = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
+
+                        add_dct(s, block[4], 4, dest_cb, dct_linesize);
+                        add_dct(s, block[5], 5, dest_cr, dct_linesize);
+                        add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
+                        add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
+                        if(!s->chroma_x_shift){//Chroma444
+                            add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
+                            add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
+                            add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
+                            add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
+                        }
+                    }
+                }//fi gray
+            }
+            else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
+                ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
+            }
+        } else {
+            /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
+               TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
+            if (s->avctx->bits_per_raw_sample > 8){
+                const int act_block_size = block_size * 2;
+
+                if(s->dpcm_direction == 0) {
+                    s->idsp.idct_put(dest_y,                           dct_linesize, (int16_t*)(*s->block32)[0]);
+                    s->idsp.idct_put(dest_y              + act_block_size, dct_linesize, (int16_t*)(*s->block32)[1]);
+                    s->idsp.idct_put(dest_y + dct_offset,              dct_linesize, (int16_t*)(*s->block32)[2]);
+                    s->idsp.idct_put(dest_y + dct_offset + act_block_size, dct_linesize, (int16_t*)(*s->block32)[3]);
+
+                    dct_linesize = uvlinesize << s->interlaced_dct;
+                    dct_offset   = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
+
+                    s->idsp.idct_put(dest_cb,              dct_linesize, (int16_t*)(*s->block32)[4]);
+                    s->idsp.idct_put(dest_cr,              dct_linesize, (int16_t*)(*s->block32)[5]);
+                    s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, (int16_t*)(*s->block32)[6]);
+                    s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, (int16_t*)(*s->block32)[7]);
+                    if(!s->chroma_x_shift){//Chroma444
+                        s->idsp.idct_put(dest_cb + act_block_size,              dct_linesize, (int16_t*)(*s->block32)[8]);
+                        s->idsp.idct_put(dest_cr + act_block_size,              dct_linesize, (int16_t*)(*s->block32)[9]);
+                        s->idsp.idct_put(dest_cb + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[10]);
+                        s->idsp.idct_put(dest_cr + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[11]);
+                    }
+                } else if(s->dpcm_direction == 1) {
+                    int i, w, h;
+                    uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
+                    int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
+                    for(i = 0; i < 3; i++) {
+                        int idx = 0;
+                        int vsub = i ? s->chroma_y_shift : 0;
+                        int hsub = i ? s->chroma_x_shift : 0;
+                        for(h = 0; h < (16 >> vsub); h++){
+                            for(w = 0; w < (16 >> hsub); w++)
+                                dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
+                            dest_pcm[i] += linesize[i] / 2;
+                        }
+                    }
+                } else if(s->dpcm_direction == -1) {
+                    int i, w, h;
+                    uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
+                    int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
+                    for(i = 0; i < 3; i++) {
+                        int idx = 0;
+                        int vsub = i ? s->chroma_y_shift : 0;
+                        int hsub = i ? s->chroma_x_shift : 0;
+                        dest_pcm[i] += (linesize[i] / 2) * ((16 >> vsub) - 1);
+                        for(h = (16 >> vsub)-1; h >= 1; h--){
+                            for(w = (16 >> hsub)-1; w >= 1; w--)
+                                dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
+                            dest_pcm[i] -= linesize[i] / 2;
+                        }
+                    }
+                }
+            }
+            /* dct only in intra block */
+            else if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
+                put_dct(s, block[0], 0, dest_y                          , dct_linesize, s->qscale);
+                put_dct(s, block[1], 1, dest_y              + block_size, dct_linesize, s->qscale);
+                put_dct(s, block[2], 2, dest_y + dct_offset             , dct_linesize, s->qscale);
+                put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
+
+                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
+                    if(s->chroma_y_shift){
+                        put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
+                        put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
+                    }else{
+                        dct_offset >>=1;
+                        dct_linesize >>=1;
+                        put_dct(s, block[4], 4, dest_cb,              dct_linesize, s->chroma_qscale);
+                        put_dct(s, block[5], 5, dest_cr,              dct_linesize, s->chroma_qscale);
+                        put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
+                        put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
+                    }
+                }
+            }else{
+                s->idsp.idct_put(dest_y,                           dct_linesize, block[0]);
+                s->idsp.idct_put(dest_y              + block_size, dct_linesize, block[1]);
+                s->idsp.idct_put(dest_y + dct_offset,              dct_linesize, block[2]);
+                s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
+
+                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
+                    if(s->chroma_y_shift){
+                        s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
+                        s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
+                    }else{
+
+                        dct_linesize = uvlinesize << s->interlaced_dct;
+                        dct_offset   = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
+
+                        s->idsp.idct_put(dest_cb,              dct_linesize, block[4]);
+                        s->idsp.idct_put(dest_cr,              dct_linesize, block[5]);
+                        s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
+                        s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
+                        if(!s->chroma_x_shift){//Chroma444
+                            s->idsp.idct_put(dest_cb + block_size,              dct_linesize, block[8]);
+                            s->idsp.idct_put(dest_cr + block_size,              dct_linesize, block[9]);
+                            s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
+                            s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
+                        }
+                    }
+                }//gray
+            }
+        }
+skip_idct:
+        if(!readable){
+            s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y ,   linesize,16);
+            if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
+                s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
+                s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
+            }
+        }
+    }
+}
+
+void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
+{
+#if !CONFIG_SMALL
+    if(s->out_format == FMT_MPEG1) {
+        if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
+        else                 mpv_reconstruct_mb_internal(s, block, 0, 1);
+    } else
+#endif
+    if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
+    else                  mpv_reconstruct_mb_internal(s, block, 0, 0);
+}
+
+void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
+{
+    ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
+                       s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
+                       s->first_field, s->low_delay);
+}
+
+void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
+    const int linesize   = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
+    const int uvlinesize = s->current_picture.f->linesize[1];
+    const int width_of_mb = (4 + (s->avctx->bits_per_raw_sample > 8)) - s->avctx->lowres;
+    const int height_of_mb = 4 - s->avctx->lowres;
+
+    s->block_index[0]= s->b8_stride*(s->mb_y*2    ) - 2 + s->mb_x*2;
+    s->block_index[1]= s->b8_stride*(s->mb_y*2    ) - 1 + s->mb_x*2;
+    s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
+    s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
+    s->block_index[4]= s->mb_stride*(s->mb_y + 1)                + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
+    s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
+    //block_index is not used by mpeg2, so it is not affected by chroma_format
+
+    s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) <<  width_of_mb);
+    s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
+    s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
+
+    if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
+    {
+        if(s->picture_structure==PICT_FRAME){
+        s->dest[0] += s->mb_y *   linesize << height_of_mb;
+        s->dest[1] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
+        s->dest[2] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
+        }else{
+            s->dest[0] += (s->mb_y>>1) *   linesize << height_of_mb;
+            s->dest[1] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
+            s->dest[2] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
+            av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
+        }
+    }
+}
+
+void ff_mpeg_flush(AVCodecContext *avctx){
+    int i;
+    MpegEncContext *s = avctx->priv_data;
+
+    if (!s || !s->picture)
+        return;
+
+    for (i = 0; i < MAX_PICTURE_COUNT; i++)
+        ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
+    s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
+
+    ff_mpeg_unref_picture(s->avctx, &s->current_picture);
+    ff_mpeg_unref_picture(s->avctx, &s->last_picture);
+    ff_mpeg_unref_picture(s->avctx, &s->next_picture);
+
+    s->mb_x= s->mb_y= 0;
+    s->closed_gop= 0;
+
+    s->parse_context.state= -1;
+    s->parse_context.frame_start_found= 0;
+    s->parse_context.overread= 0;
+    s->parse_context.overread_index= 0;
+    s->parse_context.index= 0;
+    s->parse_context.last_index= 0;
+    s->bitstream_buffer_size=0;
+    s->pp_time=0;
+}
+
+/**
+ * set qscale and update qscale dependent variables.
+ */
+void ff_set_qscale(MpegEncContext * s, int qscale)
+{
+    if (qscale < 1)
+        qscale = 1;
+    else if (qscale > 31)
+        qscale = 31;
+
+    s->qscale = qscale;
+    s->chroma_qscale= s->chroma_qscale_table[qscale];
+
+    s->y_dc_scale= s->y_dc_scale_table[ qscale ];
+    s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
+}
+
+void ff_mpv_report_decode_progress(MpegEncContext *s)
+{
+    if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
+        ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideo.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideo.h
new file mode 100644
index 000000000..e1ff5f97d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideo.h
@@ -0,0 +1,770 @@
+/*
+ * Generic DCT based hybrid video encoder
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * mpegvideo header.
+ */
+
+#ifndef AVCODEC_MPEGVIDEO_H
+#define AVCODEC_MPEGVIDEO_H
+
+#include <float.h>
+
+#include "avcodec.h"
+#include "blockdsp.h"
+#include "error_resilience.h"
+#include "fdctdsp.h"
+#include "get_bits.h"
+#include "h264chroma.h"
+#include "h263dsp.h"
+#include "hpeldsp.h"
+#include "idctdsp.h"
+#include "internal.h"
+#include "me_cmp.h"
+#include "motion_est.h"
+#include "mpegpicture.h"
+#include "mpegvideodsp.h"
+#include "mpegvideoencdsp.h"
+#include "mpegvideodata.h"
+#include "pixblockdsp.h"
+#include "put_bits.h"
+#include "ratecontrol.h"
+#include "parser.h"
+#include "mpegutils.h"
+#include "mpeg12data.h"
+#include "qpeldsp.h"
+#include "thread.h"
+#include "videodsp.h"
+
+#include "libavutil/opt.h"
+#include "libavutil/timecode.h"
+
+#define MAX_THREADS 32
+
+#define MAX_B_FRAMES 16
+
+/* Start codes. */
+#define SEQ_END_CODE            0x000001b7
+#define SEQ_START_CODE          0x000001b3
+#define GOP_START_CODE          0x000001b8
+#define PICTURE_START_CODE      0x00000100
+#define SLICE_MIN_START_CODE    0x00000101
+#define SLICE_MAX_START_CODE    0x000001af
+#define EXT_START_CODE          0x000001b5
+#define USER_START_CODE         0x000001b2
+#define SLICE_START_CODE        0x000001b7
+
+
+/**
+ * MpegEncContext.
+ */
+typedef struct MpegEncContext {
+    AVClass *class;
+
+    int y_dc_scale, c_dc_scale;
+    int ac_pred;
+    int block_last_index[12];  ///< last non zero coefficient in block
+    int h263_aic;              ///< Advanced INTRA Coding (AIC)
+
+    /* scantables */
+    ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce the cache usage
+    ScanTable intra_scantable;
+    ScanTable intra_h_scantable;
+    ScanTable intra_v_scantable;
+
+    /* WARNING: changes above this line require updates to hardcoded
+     *          offsets used in ASM. */
+
+    struct AVCodecContext *avctx;
+    /* the following parameters must be initialized before encoding */
+    int width, height;///< picture size. must be a multiple of 16
+    int gop_size;
+    int intra_only;   ///< if true, only intra pictures are generated
+    int64_t bit_rate; ///< wanted bit rate
+    enum OutputFormat out_format; ///< output format
+    int h263_pred;    ///< use MPEG-4/H.263 ac/dc predictions
+    int pb_frame;     ///< PB-frame mode (0 = none, 1 = base, 2 = improved)
+
+/* the following codec id fields are deprecated in favor of codec_id */
+    int h263_plus;    ///< H.263+ headers
+    int h263_flv;     ///< use flv H.263 header
+
+    enum AVCodecID codec_id;     /* see AV_CODEC_ID_xxx */
+    int fixed_qscale; ///< fixed qscale if non zero
+    int encoding;     ///< true if we are encoding (vs decoding)
+    int max_b_frames; ///< max number of B-frames for encoding
+    int luma_elim_threshold;
+    int chroma_elim_threshold;
+    int strict_std_compliance; ///< strictly follow the std (MPEG-4, ...)
+    int workaround_bugs;       ///< workaround bugs in encoders which cannot be detected automatically
+    int codec_tag;             ///< internal codec_tag upper case converted from avctx codec_tag
+    /* the following fields are managed internally by the encoder */
+
+    /* sequence parameters */
+    int context_initialized;
+    int input_picture_number;  ///< used to set pic->display_picture_number, should not be used for/by anything else
+    int coded_picture_number;  ///< used to set pic->coded_picture_number, should not be used for/by anything else
+    int picture_number;       //FIXME remove, unclear definition
+    int picture_in_gop_number; ///< 0-> first pic in gop, ...
+    int mb_width, mb_height;   ///< number of MBs horizontally & vertically
+    int mb_stride;             ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11
+    int b8_stride;             ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
+    int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication)
+    int mb_num;                ///< number of MBs of a picture
+    ptrdiff_t linesize;        ///< line size, in bytes, may be different from width
+    ptrdiff_t uvlinesize;      ///< line size, for chroma in bytes, may be different from width
+    Picture *picture;          ///< main picture buffer
+    Picture **input_picture;   ///< next pictures on display order for encoding
+    Picture **reordered_input_picture; ///< pointer to the next pictures in coded order for encoding
+
+    int64_t user_specified_pts; ///< last non-zero pts from AVFrame which was passed into avcodec_encode_video2()
+    /**
+     * pts difference between the first and second input frame, used for
+     * calculating dts of the first frame when there's a delay */
+    int64_t dts_delta;
+    /**
+     * reordered pts to be used as dts for the next output frame when there's
+     * a delay */
+    int64_t reordered_pts;
+
+    /** bit output */
+    PutBitContext pb;
+
+    int start_mb_y;            ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
+    int end_mb_y;              ///< end   mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
+    struct MpegEncContext *thread_context[MAX_THREADS];
+    int slice_context_count;   ///< number of used thread_contexts
+
+    /**
+     * copy of the previous picture structure.
+     * note, linesize & data, might not match the previous picture (for field pictures)
+     */
+    Picture last_picture;
+
+    /**
+     * copy of the next picture structure.
+     * note, linesize & data, might not match the next picture (for field pictures)
+     */
+    Picture next_picture;
+
+    /**
+     * copy of the source picture structure for encoding.
+     * note, linesize & data, might not match the source picture (for field pictures)
+     */
+    Picture new_picture;
+
+    /**
+     * copy of the current picture structure.
+     * note, linesize & data, might not match the current picture (for field pictures)
+     */
+    Picture current_picture;    ///< buffer to store the decompressed current picture
+
+    Picture *last_picture_ptr;     ///< pointer to the previous picture.
+    Picture *next_picture_ptr;     ///< pointer to the next picture (for bidir pred)
+    Picture *current_picture_ptr;  ///< pointer to the current picture
+    int last_dc[3];                ///< last DC values for MPEG-1
+    int16_t *dc_val_base;
+    int16_t *dc_val[3];            ///< used for MPEG-4 DC prediction, all 3 arrays must be continuous
+    const uint8_t *y_dc_scale_table;     ///< qscale -> y_dc_scale table
+    const uint8_t *c_dc_scale_table;     ///< qscale -> c_dc_scale table
+    const uint8_t *chroma_qscale_table;  ///< qscale -> chroma_qscale (H.263)
+    uint8_t *coded_block_base;
+    uint8_t *coded_block;          ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
+    int16_t (*ac_val_base)[16];
+    int16_t (*ac_val[3])[16];      ///< used for MPEG-4 AC prediction, all 3 arrays must be continuous
+    int mb_skipped;                ///< MUST BE SET only during DECODING
+    uint8_t *mbskip_table;        /**< used to avoid copy if macroblock skipped (for black regions for example)
+                                   and used for B-frame encoding & decoding (contains skip table of next P-frame) */
+    uint8_t *mbintra_table;       ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
+    uint8_t *cbp_table;           ///< used to store cbp, ac_pred for partitioned decoding
+    uint8_t *pred_dir_table;      ///< used to store pred_dir for partitioned decoding
+
+    ScratchpadContext sc;
+
+    int qscale;                 ///< QP
+    int chroma_qscale;          ///< chroma QP
+    unsigned int lambda;        ///< Lagrange multiplier used in rate distortion
+    unsigned int lambda2;       ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
+    int *lambda_table;
+    int adaptive_quant;         ///< use adaptive quantization
+    int dquant;                 ///< qscale difference to prev qscale
+    int closed_gop;             ///< MPEG1/2 GOP is closed
+    int pict_type;              ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
+    int vbv_delay;
+    int last_pict_type; //FIXME removes
+    int last_non_b_pict_type;   ///< used for MPEG-4 gmc B-frames & ratecontrol
+    int droppable;
+    int frame_rate_index;
+    AVRational mpeg2_frame_rate_ext;
+    int last_lambda_for[5];     ///< last lambda for a specific pict type
+    int skipdct;                ///< skip dct and code zero residual
+
+    /* motion compensation */
+    int unrestricted_mv;        ///< mv can point outside of the coded picture
+    int h263_long_vectors;      ///< use horrible H.263v1 long vector mode
+
+    BlockDSPContext bdsp;
+    FDCTDSPContext fdsp;
+    H264ChromaContext h264chroma;
+    HpelDSPContext hdsp;
+    IDCTDSPContext idsp;
+    MECmpContext mecc;
+    MpegVideoDSPContext mdsp;
+    MpegvideoEncDSPContext mpvencdsp;
+    PixblockDSPContext pdsp;
+    QpelDSPContext qdsp;
+    VideoDSPContext vdsp;
+    H263DSPContext h263dsp;
+    int f_code;                 ///< forward MV resolution
+    int b_code;                 ///< backward MV resolution for B-frames (MPEG-4)
+    int16_t (*p_mv_table_base)[2];
+    int16_t (*b_forw_mv_table_base)[2];
+    int16_t (*b_back_mv_table_base)[2];
+    int16_t (*b_bidir_forw_mv_table_base)[2];
+    int16_t (*b_bidir_back_mv_table_base)[2];
+    int16_t (*b_direct_mv_table_base)[2];
+    int16_t (*p_field_mv_table_base[2][2])[2];
+    int16_t (*b_field_mv_table_base[2][2][2])[2];
+    int16_t (*p_mv_table)[2];            ///< MV table (1MV per MB) P-frame encoding
+    int16_t (*b_forw_mv_table)[2];       ///< MV table (1MV per MB) forward mode B-frame encoding
+    int16_t (*b_back_mv_table)[2];       ///< MV table (1MV per MB) backward mode B-frame encoding
+    int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode B-frame encoding
+    int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode B-frame encoding
+    int16_t (*b_direct_mv_table)[2];     ///< MV table (1MV per MB) direct mode B-frame encoding
+    int16_t (*p_field_mv_table[2][2])[2];   ///< MV table (2MV per MB) interlaced P-frame encoding
+    int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced B-frame encoding
+    uint8_t (*p_field_select_table[2]);
+    uint8_t (*b_field_select_table[2][2]);
+    int motion_est;                      ///< ME algorithm
+    int me_penalty_compensation;
+    int me_pre;                          ///< prepass for motion estimation
+    int mv_dir;
+#define MV_DIR_FORWARD   1
+#define MV_DIR_BACKWARD  2
+#define MV_DIRECT        4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (MPEG-4)
+    int mv_type;
+#define MV_TYPE_16X16       0   ///< 1 vector for the whole mb
+#define MV_TYPE_8X8         1   ///< 4 vectors (H.263, MPEG-4 4MV)
+#define MV_TYPE_16X8        2   ///< 2 vectors, one per 16x8 block
+#define MV_TYPE_FIELD       3   ///< 2 vectors, one per field
+#define MV_TYPE_DMV         4   ///< 2 vectors, special mpeg2 Dual Prime Vectors
+    /**motion vectors for a macroblock
+       first coordinate : 0 = forward 1 = backward
+       second "         : depend on type
+       third  "         : 0 = x, 1 = y
+    */
+    int mv[2][4][2];
+    int field_select[2][2];
+    int last_mv[2][2][2];             ///< last MV, used for MV prediction in MPEG-1 & B-frame MPEG-4
+    uint8_t *fcode_tab;               ///< smallest fcode needed for each MV
+    int16_t direct_scale_mv[2][64];   ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv
+
+    MotionEstContext me;
+
+    int no_rounding;  /**< apply no rounding to motion compensation (MPEG-4, msmpeg4, ...)
+                        for B-frames rounding mode is always 0 */
+
+    /* macroblock layer */
+    int mb_x, mb_y;
+    int mb_skip_run;
+    int mb_intra;
+    uint16_t *mb_type;  ///< Table for candidate MB types for encoding (defines in mpegutils.h)
+
+    int block_index[6]; ///< index to current MB in block based arrays with edges
+    int block_wrap[6];
+    uint8_t *dest[3];
+
+    int *mb_index2xy;        ///< mb_index -> mb_x + mb_y*mb_stride
+
+    /** matrix transmitted in the bitstream */
+    uint16_t intra_matrix[64];
+    uint16_t chroma_intra_matrix[64];
+    uint16_t inter_matrix[64];
+    uint16_t chroma_inter_matrix[64];
+    int force_duplicated_matrix; ///< Force duplication of mjpeg matrices, useful for rtp streaming
+
+    int intra_quant_bias;    ///< bias for the quantizer
+    int inter_quant_bias;    ///< bias for the quantizer
+    int min_qcoeff;          ///< minimum encodable coefficient
+    int max_qcoeff;          ///< maximum encodable coefficient
+    int ac_esc_length;       ///< num of bits needed to encode the longest esc
+    uint8_t *intra_ac_vlc_length;
+    uint8_t *intra_ac_vlc_last_length;
+    uint8_t *intra_chroma_ac_vlc_length;
+    uint8_t *intra_chroma_ac_vlc_last_length;
+    uint8_t *inter_ac_vlc_length;
+    uint8_t *inter_ac_vlc_last_length;
+    uint8_t *luma_dc_vlc_length;
+#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
+
+    int coded_score[12];
+
+    /** precomputed matrix (combine qscale and DCT renorm) */
+    int (*q_intra_matrix)[64];
+    int (*q_chroma_intra_matrix)[64];
+    int (*q_inter_matrix)[64];
+    /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
+    uint16_t (*q_intra_matrix16)[2][64];
+    uint16_t (*q_chroma_intra_matrix16)[2][64];
+    uint16_t (*q_inter_matrix16)[2][64];
+
+    /* noise reduction */
+    int (*dct_error_sum)[64];
+    int dct_count[2];
+    uint16_t (*dct_offset)[64];
+
+    /* bit rate control */
+    int64_t total_bits;
+    int frame_bits;                ///< bits used for the current frame
+    int stuffing_bits;             ///< bits used for stuffing
+    int next_lambda;               ///< next lambda used for retrying to encode a frame
+    RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
+
+    /* statistics, used for 2-pass encoding */
+    int mv_bits;
+    int header_bits;
+    int i_tex_bits;
+    int p_tex_bits;
+    int i_count;
+    int f_count;
+    int b_count;
+    int skip_count;
+    int misc_bits; ///< cbp, mb_type
+    int last_bits; ///< temp var used for calculating the above vars
+
+    /* error concealment / resync */
+    int resync_mb_x;                 ///< x position of last resync marker
+    int resync_mb_y;                 ///< y position of last resync marker
+    GetBitContext last_resync_gb;    ///< used to search for the next resync marker
+    int mb_num_left;                 ///< number of MBs left in this video packet (for partitioned Slices only)
+    int next_p_frame_damaged;        ///< set if the next p frame is damaged, to avoid showing trashed B-frames
+
+    ParseContext parse_context;
+
+    /* H.263 specific */
+    int gob_index;
+    int obmc;                       ///< overlapped block motion compensation
+    int mb_info;                    ///< interval for outputting info about mb offsets as side data
+    int prev_mb_info, last_mb_info;
+    uint8_t *mb_info_ptr;
+    int mb_info_size;
+    int ehc_mode;
+    int rc_strategy;                ///< deprecated
+
+    /* H.263+ specific */
+    int umvplus;                    ///< == H.263+ && unrestricted_mv
+    int h263_aic_dir;               ///< AIC direction: 0 = left, 1 = top
+    int h263_slice_structured;
+    int alt_inter_vlc;              ///< alternative inter vlc
+    int modified_quant;
+    int loop_filter;
+    int custom_pcf;
+
+    /* MPEG-4 specific */
+    int studio_profile;
+    int dct_precision;
+    ///< number of bits to represent the fractional part of time (encoder only)
+    int time_increment_bits;
+    int last_time_base;
+    int time_base;                  ///< time in seconds of last I,P,S Frame
+    int64_t time;                   ///< time of current frame
+    int64_t last_non_b_time;
+    uint16_t pp_time;               ///< time distance between the last 2 p,s,i frames
+    uint16_t pb_time;               ///< time distance between the last b and p,s,i frame
+    uint16_t pp_field_time;
+    uint16_t pb_field_time;         ///< like above, just for interlaced
+    int real_sprite_warping_points;
+    int sprite_offset[2][2];         ///< sprite offset[isChroma][isMVY]
+    int sprite_delta[2][2];          ///< sprite_delta [isY][isMVY]
+    int mcsel;
+    int quant_precision;
+    int quarter_sample;              ///< 1->qpel, 0->half pel ME/MC
+    int aspect_ratio_info; //FIXME remove
+    int sprite_warping_accuracy;
+    int data_partitioning;           ///< data partitioning flag from header
+    int partitioned_frame;           ///< is current frame partitioned
+    int low_delay;                   ///< no reordering needed / has no B-frames
+    int vo_type;
+    PutBitContext tex_pb;            ///< used for data partitioned VOPs
+    PutBitContext pb2;               ///< used for data partitioned VOPs
+    int mpeg_quant;
+    int padding_bug_score;             ///< used to detect the VERY common padding bug in MPEG-4
+
+    /* divx specific, used to workaround (many) bugs in divx5 */
+    int divx_packed;
+    uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
+    int bitstream_buffer_size;
+    unsigned int allocated_bitstream_buffer_size;
+
+    /* RV10 specific */
+    int rv10_version; ///< RV10 version: 0 or 3
+    int rv10_first_dc_coded[3];
+
+    /* MJPEG specific */
+    struct MJpegContext *mjpeg_ctx;
+    int esc_pos;
+    int pred;
+    int huffman;
+
+    /* MSMPEG4 specific */
+    int mv_table_index;
+    int rl_table_index;
+    int rl_chroma_table_index;
+    int dc_table_index;
+    int use_skip_mb_code;
+    int slice_height;      ///< in macroblocks
+    int first_slice_line;  ///< used in MPEG-4 too to handle resync markers
+    int flipflop_rounding;
+    int msmpeg4_version;   ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
+    int per_mb_rl_table;
+    int esc3_level_length;
+    int esc3_run_length;
+    /** [mb_intra][isChroma][level][run][last] */
+    int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
+    int inter_intra_pred;
+    int mspel;
+
+    /* decompression specific */
+    GetBitContext gb;
+
+    /* MPEG-1 specific */
+    int gop_picture_number;  ///< index of the first picture of a GOP based on fake_pic_num & MPEG-1 specific
+    int last_mv_dir;         ///< last mv_dir, used for B-frame encoding
+    uint8_t *vbv_delay_ptr;  ///< pointer to vbv_delay in the bitstream
+
+    /* MPEG-2-specific - I wished not to have to support this mess. */
+    int progressive_sequence;
+    int mpeg_f_code[2][2];
+    int a53_cc;
+
+    // picture structure defines are loaded from mpegutils.h
+    int picture_structure;
+
+    int64_t timecode_frame_start; ///< GOP timecode frame start number, in non drop frame format
+    int intra_dc_precision;
+    int frame_pred_frame_dct;
+    int top_field_first;
+    int concealment_motion_vectors;
+    int q_scale_type;
+    int brd_scale;
+    int intra_vlc_format;
+    int alternate_scan;
+    int seq_disp_ext;
+    int video_format;
+#define VIDEO_FORMAT_COMPONENT   0
+#define VIDEO_FORMAT_PAL         1
+#define VIDEO_FORMAT_NTSC        2
+#define VIDEO_FORMAT_SECAM       3
+#define VIDEO_FORMAT_MAC         4
+#define VIDEO_FORMAT_UNSPECIFIED 5
+    int repeat_first_field;
+    int chroma_420_type;
+    int chroma_format;
+#define CHROMA_420 1
+#define CHROMA_422 2
+#define CHROMA_444 3
+    int chroma_x_shift;//depend on pix_format, that depend on chroma_format
+    int chroma_y_shift;
+
+    int progressive_frame;
+    int full_pel[2];
+    int interlaced_dct;
+    int first_field;         ///< is 1 for the first field of a field picture 0 otherwise
+    int drop_frame_timecode; ///< timecode is in drop frame format.
+    int scan_offset;         ///< reserve space for SVCD scan offset user data.
+
+    /* RTP specific */
+    int rtp_mode;
+    int rtp_payload_size;
+
+    char *tc_opt_str;        ///< timecode option string
+    AVTimecode tc;           ///< timecode context
+
+    uint8_t *ptr_lastgob;
+    int swap_uv;             //vcr2 codec is an MPEG-2 variant with U and V swapped
+    int pack_pblocks;        //xvmc needs to keep blocks without gaps.
+    int16_t (*pblocks[12])[64];
+
+    int16_t (*block)[64]; ///< points to one of the following blocks
+    int16_t (*blocks)[12][64]; // for HQ mode we need to keep the best block
+    int (*decode_mb)(struct MpegEncContext *s, int16_t block[12][64]); // used by some codecs to avoid a switch()
+
+    int32_t (*block32)[12][64];
+    int dpcm_direction;          // 0 = DCT, 1 = DPCM top to bottom scan, -1 = DPCM bottom to top scan
+    int16_t (*dpcm_macroblock)[3][256];
+
+#define SLICE_OK         0
+#define SLICE_ERROR     -1
+#define SLICE_END       -2 ///<end marker found
+#define SLICE_NOEND     -3 ///<no end marker or error found but mb count exceeded
+
+    void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s,
+                           int16_t *block/*align 16*/, int n, int qscale);
+    void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s,
+                           int16_t *block/*align 16*/, int n, int qscale);
+    void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s,
+                           int16_t *block/*align 16*/, int n, int qscale);
+    void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s,
+                           int16_t *block/*align 16*/, int n, int qscale);
+    void (*dct_unquantize_h263_intra)(struct MpegEncContext *s,
+                           int16_t *block/*align 16*/, int n, int qscale);
+    void (*dct_unquantize_h263_inter)(struct MpegEncContext *s,
+                           int16_t *block/*align 16*/, int n, int qscale);
+    void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (MPEG-4 can use both)
+                           int16_t *block/*align 16*/, int n, int qscale);
+    void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (MPEG-4 can use both)
+                           int16_t *block/*align 16*/, int n, int qscale);
+    int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
+    int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
+    void (*denoise_dct)(struct MpegEncContext *s, int16_t *block);
+
+    int mpv_flags;      ///< flags set by private options
+    int quantizer_noise_shaping;
+
+    /**
+     * ratecontrol qmin qmax limiting method
+     * 0-> clipping, 1-> use a nice continuous function to limit qscale within qmin/qmax.
+     */
+    float rc_qsquish;
+    float rc_qmod_amp;
+    int   rc_qmod_freq;
+    float rc_initial_cplx;
+    float rc_buffer_aggressivity;
+    float border_masking;
+    int lmin, lmax;
+    int vbv_ignore_qmax;
+
+    char *rc_eq;
+
+    /* temp buffers for rate control */
+    float *cplx_tab, *bits_tab;
+
+    /* flag to indicate a reinitialization is required, e.g. after
+     * a frame size change */
+    int context_reinit;
+
+    ERContext er;
+
+    int error_rate;
+
+    /* temporary frames used by b_frame_strategy = 2 */
+    AVFrame *tmp_frames[MAX_B_FRAMES + 2];
+    int b_frame_strategy;
+    int b_sensitivity;
+
+    /* frame skip options for encoding */
+    int frame_skip_threshold;
+    int frame_skip_factor;
+    int frame_skip_exp;
+    int frame_skip_cmp;
+
+    int scenechange_threshold;
+    int noise_reduction;
+} MpegEncContext;
+
+/* mpegvideo_enc common options */
+#define FF_MPV_FLAG_SKIP_RD      0x0001
+#define FF_MPV_FLAG_STRICT_GOP   0x0002
+#define FF_MPV_FLAG_QP_RD        0x0004
+#define FF_MPV_FLAG_CBP_RD       0x0008
+#define FF_MPV_FLAG_NAQ          0x0010
+#define FF_MPV_FLAG_MV0          0x0020
+
+#define FF_MPV_OPT_CMP_FUNC \
+{ "sad",    "Sum of absolute differences, fast", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "sse",    "Sum of squared errors", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "satd",   "Sum of absolute Hadamard transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SATD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "dct",    "Sum of absolute DCT transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "psnr",   "Sum of squared quantization errors, low quality", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_PSNR }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "bit",    "Number of bits needed for the block", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_BIT }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "rd",     "Rate distortion optimal, slow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_RD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "zero",   "Zero", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_ZERO }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "vsad",   "Sum of absolute vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "vsse",   "Sum of squared vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "nsse",   "Noise preserving sum of squared differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_NSSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "dct264", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT264 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_CHROMA }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{ "msad",   "Sum of absolute differences, median predicted", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_MEDIAN_SAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }
+
+#ifndef FF_MPV_OFFSET
+#define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
+#endif
+#define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
+#define FF_MPV_COMMON_OPTS \
+FF_MPV_OPT_CMP_FUNC, \
+{ "mpv_flags",      "Flags common for all mpegvideo-based encoders.", FF_MPV_OFFSET(mpv_flags), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "mpv_flags" },\
+{ "skip_rd",        "RD optimal MB level residual skipping", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_SKIP_RD },    0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
+{ "strict_gop",     "Strictly enforce gop size",             0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_STRICT_GOP }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
+{ "qp_rd",          "Use rate distortion optimization for qp selection", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_QP_RD },  0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
+{ "cbp_rd",         "use rate distortion optimization for CBP",          0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_CBP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
+{ "naq",            "normalize adaptive quantization",                   0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_NAQ },    0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
+{ "mv0",            "always try a mb with mv=<0,0>",                     0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_MV0 },    0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
+{ "luma_elim_threshold",   "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
+                                                                      FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
+{ "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
+                                                                      FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
+{ "quantizer_noise_shaping", NULL,                                  FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 },       0, INT_MAX, FF_MPV_OPT_FLAGS },\
+{ "error_rate", "Simulate errors in the bitstream to test error concealment.",                                                                                                  \
+                                                                    FF_MPV_OFFSET(error_rate),              AV_OPT_TYPE_INT, { .i64 = 0 },       0, INT_MAX, FF_MPV_OPT_FLAGS },\
+{"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)",                                                                          \
+                                                                    FF_MPV_OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0, 99, FF_MPV_OPT_FLAGS},                        \
+{"rc_qmod_amp", "experimental quantizer modulation",                FF_MPV_OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS},           \
+{"rc_qmod_freq", "experimental quantizer modulation",               FF_MPV_OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS},             \
+{"rc_eq", "Set rate control equation. When computing the expression, besides the standard functions "                                                                           \
+          "defined in the section 'Expression Evaluation', the following functions are available: "                                                                             \
+          "bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv "                                                                           \
+          "fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.",                                                                         \
+                                                                    FF_MPV_OFFSET(rc_eq), AV_OPT_TYPE_STRING,                           .flags = FF_MPV_OPT_FLAGS },            \
+{"rc_init_cplx", "initial complexity for 1-pass encoding",          FF_MPV_OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS},       \
+{"rc_buf_aggressivity", "currently useless",                        FF_MPV_OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
+{"border_mask", "increase the quantizer for macroblocks close to borders", FF_MPV_OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS},    \
+{"lmin", "minimum Lagrange factor (VBR)",                           FF_MPV_OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 =  2*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS },            \
+{"lmax", "maximum Lagrange factor (VBR)",                           FF_MPV_OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 = 31*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS },            \
+{"ibias", "intra quant bias",                                       FF_MPV_OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },   \
+{"pbias", "inter quant bias",                                       FF_MPV_OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },   \
+{"rc_strategy", "ratecontrol method",                               FF_MPV_OFFSET(rc_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED, "rc_strategy" },   \
+    { "ffmpeg", "deprecated, does nothing", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED, "rc_strategy" }, \
+    { "xvid",   "deprecated, does nothing", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED, "rc_strategy" }, \
+{"motion_est", "motion estimation algorithm",                       FF_MPV_OFFSET(motion_est), AV_OPT_TYPE_INT, {.i64 = FF_ME_EPZS }, FF_ME_ZERO, FF_ME_XONE, FF_MPV_OPT_FLAGS, "motion_est" },   \
+{ "zero", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ZERO }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
+{ "epzs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_EPZS }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
+{ "xone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_XONE }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
+{ "force_duplicated_matrix", "Always write luma and chroma matrix for mjpeg, useful for rtp streaming.", FF_MPV_OFFSET(force_duplicated_matrix), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS },   \
+{"b_strategy", "Strategy to choose between I/P/B-frames",           FF_MPV_OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 2, FF_MPV_OPT_FLAGS }, \
+{"b_sensitivity", "Adjust sensitivity of b_frame_strategy 1",       FF_MPV_OFFSET(b_sensitivity), AV_OPT_TYPE_INT, {.i64 = 40 }, 1, INT_MAX, FF_MPV_OPT_FLAGS }, \
+{"brd_scale", "Downscale frames for dynamic B-frame decision",      FF_MPV_OFFSET(brd_scale), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 3, FF_MPV_OPT_FLAGS }, \
+{"skip_threshold", "Frame skip threshold",                          FF_MPV_OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
+{"skip_factor", "Frame skip factor",                                FF_MPV_OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
+{"skip_exp", "Frame skip exponent",                                 FF_MPV_OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
+{"skip_cmp", "Frame skip compare function",                         FF_MPV_OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
+{"sc_threshold", "Scene change threshold",                          FF_MPV_OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
+{"noise_reduction", "Noise reduction",                              FF_MPV_OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
+{"mpeg_quant", "Use MPEG quantizers instead of H.263",              FF_MPV_OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS }, \
+{"ps", "RTP payload size in bytes",                             FF_MPV_OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
+{"mepc", "Motion estimation bitrate penalty compensation (1.0 = 256)", FF_MPV_OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {.i64 = 256 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
+{"mepre", "pre motion estimation", FF_MPV_OFFSET(me_pre), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
+{"a53cc", "Use A53 Closed Captions (if available)", FF_MPV_OFFSET(a53_cc), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FF_MPV_OPT_FLAGS }, \
+
+extern const AVOption ff_mpv_generic_options[];
+
+/**
+ * Set the given MpegEncContext to common defaults (same for encoding
+ * and decoding).  The changed fields will not depend upon the prior
+ * state of the MpegEncContext.
+ */
+void ff_mpv_common_defaults(MpegEncContext *s);
+
+void ff_dct_encode_init_x86(MpegEncContext *s);
+
+int ff_mpv_common_init(MpegEncContext *s);
+void ff_mpv_common_init_arm(MpegEncContext *s);
+void ff_mpv_common_init_axp(MpegEncContext *s);
+void ff_mpv_common_init_neon(MpegEncContext *s);
+void ff_mpv_common_init_ppc(MpegEncContext *s);
+void ff_mpv_common_init_x86(MpegEncContext *s);
+void ff_mpv_common_init_mips(MpegEncContext *s);
+
+int ff_mpv_common_frame_size_change(MpegEncContext *s);
+void ff_mpv_common_end(MpegEncContext *s);
+
+void ff_mpv_decode_defaults(MpegEncContext *s);
+void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx);
+void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64]);
+void ff_mpv_report_decode_progress(MpegEncContext *s);
+
+int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx);
+void ff_mpv_frame_end(MpegEncContext *s);
+
+int ff_mpv_encode_init(AVCodecContext *avctx);
+void ff_mpv_encode_init_x86(MpegEncContext *s);
+
+int ff_mpv_encode_end(AVCodecContext *avctx);
+int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
+                          const AVFrame *frame, int *got_packet);
+int ff_mpv_reallocate_putbitbuffer(MpegEncContext *s, size_t threshold, size_t size_increase);
+
+void ff_clean_intra_table_entries(MpegEncContext *s);
+void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h);
+void ff_mpeg_flush(AVCodecContext *avctx);
+
+void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict);
+
+int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type);
+
+void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
+
+int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
+int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src);
+void ff_set_qscale(MpegEncContext * s, int qscale);
+
+void ff_mpv_idct_init(MpegEncContext *s);
+int ff_dct_encode_init(MpegEncContext *s);
+void ff_convert_matrix(MpegEncContext *s, int (*qmat)[64], uint16_t (*qmat16)[2][64],
+                       const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
+int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow);
+void ff_block_permute(int16_t *block, uint8_t *permutation,
+                      const uint8_t *scantable, int last);
+void ff_init_block_index(MpegEncContext *s);
+
+void ff_mpv_motion(MpegEncContext *s,
+                   uint8_t *dest_y, uint8_t *dest_cb,
+                   uint8_t *dest_cr, int dir,
+                   uint8_t **ref_picture,
+                   op_pixels_func (*pix_op)[4],
+                   qpel_mc_func (*qpix_op)[16]);
+
+static inline void ff_update_block_index(MpegEncContext *s){
+    const int bytes_per_pixel = 1 + (s->avctx->bits_per_raw_sample > 8);
+    const int block_size= (8*bytes_per_pixel) >> s->avctx->lowres;
+
+    s->block_index[0]+=2;
+    s->block_index[1]+=2;
+    s->block_index[2]+=2;
+    s->block_index[3]+=2;
+    s->block_index[4]++;
+    s->block_index[5]++;
+    s->dest[0]+= 2*block_size;
+    s->dest[1]+= (2 >> s->chroma_x_shift) * block_size;
+    s->dest[2]+= (2 >> s->chroma_x_shift) * block_size;
+}
+
+static inline int get_bits_diff(MpegEncContext *s){
+    const int bits= put_bits_count(&s->pb);
+    const int last= s->last_bits;
+
+    s->last_bits = bits;
+
+    return bits - last;
+}
+
+static inline int mpeg_get_qscale(MpegEncContext *s)
+{
+    int qscale = get_bits(&s->gb, 5);
+    if (s->q_scale_type)
+        return ff_mpeg2_non_linear_qscale[qscale];
+    else
+        return qscale << 1;
+}
+
+#endif /* AVCODEC_MPEGVIDEO_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideodata.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideodata.c
new file mode 100644
index 000000000..5f1d8f7c0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideodata.c
@@ -0,0 +1,109 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+const uint8_t ff_default_chroma_qscale_table[32] = {
+//   0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
+     0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
+    16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
+};
+
+const uint8_t ff_mpeg2_non_linear_qscale[32] = {
+     0,  1,  2,  3,  4,  5,   6,   7,
+     8, 10, 12, 14, 16, 18,  20,  22,
+    24, 28, 32, 36, 40, 44,  48,  52,
+    56, 64, 72, 80, 88, 96, 104, 112,
+};
+
+const uint8_t ff_mpeg1_dc_scale_table[128] = {
+//  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+};
+
+static const uint8_t mpeg2_dc_scale_table1[128] = {
+//  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+};
+
+static const uint8_t mpeg2_dc_scale_table2[128] = {
+//  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+};
+
+static const uint8_t mpeg2_dc_scale_table3[128] = {
+//  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+};
+
+const uint8_t *const ff_mpeg2_dc_scale_table[4] = {
+    ff_mpeg1_dc_scale_table,
+    mpeg2_dc_scale_table1,
+    mpeg2_dc_scale_table2,
+    mpeg2_dc_scale_table3,
+};
+
+const uint8_t ff_alternate_horizontal_scan[64] = {
+     0,  1,  2,  3,  8,  9, 16, 17,
+    10, 11,  4,  5,  6,  7, 15, 14,
+    13, 12, 19, 18, 24, 25, 32, 33,
+    26, 27, 20, 21, 22, 23, 28, 29,
+    30, 31, 34, 35, 40, 41, 48, 49,
+    42, 43, 36, 37, 38, 39, 44, 45,
+    46, 47, 50, 51, 56, 57, 58, 59,
+    52, 53, 54, 55, 60, 61, 62, 63,
+};
+
+const uint8_t ff_alternate_vertical_scan[64] = {
+     0,  8, 16, 24,  1,  9,  2, 10,
+    17, 25, 32, 40, 48, 56, 57, 49,
+    41, 33, 26, 18,  3, 11,  4, 12,
+    19, 27, 34, 42, 50, 58, 35, 43,
+    51, 59, 20, 28,  5, 13,  6, 14,
+    21, 29, 36, 44, 52, 60, 37, 45,
+    53, 61, 22, 30,  7, 15, 23, 31,
+    38, 46, 54, 62, 39, 47, 55, 63,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideodata.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideodata.h
new file mode 100644
index 000000000..14f4806d6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideodata.h
@@ -0,0 +1,35 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MPEGVIDEODATA_H
+#define AVCODEC_MPEGVIDEODATA_H
+
+#include <stdint.h>
+
+/* encoding scans */
+extern const uint8_t ff_alternate_horizontal_scan[64];
+extern const uint8_t ff_alternate_vertical_scan[64];
+
+extern const uint8_t ff_mpeg1_dc_scale_table[128];
+extern const uint8_t * const ff_mpeg2_dc_scale_table[4];
+
+extern const uint8_t ff_mpeg2_non_linear_qscale[32];
+
+extern const uint8_t ff_default_chroma_qscale_table[32];
+
+#endif /* AVCODEC_MPEGVIDEODATA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideodsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideodsp.c
new file mode 100644
index 000000000..a58e45ad4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideodsp.c
@@ -0,0 +1,119 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/common.h"
+#include "mpegvideodsp.h"
+
+static void gmc1_c(uint8_t *dst, uint8_t *src, int stride, int h,
+                   int x16, int y16, int rounder)
+{
+    const int A = (16 - x16) * (16 - y16);
+    const int B = (x16)      * (16 - y16);
+    const int C = (16 - x16) * (y16);
+    const int D = (x16)      * (y16);
+    int i;
+
+    for (i = 0; i < h; i++) {
+        dst[0] = (A * src[0] + B * src[1] + C * src[stride + 0] + D * src[stride + 1] + rounder) >> 8;
+        dst[1] = (A * src[1] + B * src[2] + C * src[stride + 1] + D * src[stride + 2] + rounder) >> 8;
+        dst[2] = (A * src[2] + B * src[3] + C * src[stride + 2] + D * src[stride + 3] + rounder) >> 8;
+        dst[3] = (A * src[3] + B * src[4] + C * src[stride + 3] + D * src[stride + 4] + rounder) >> 8;
+        dst[4] = (A * src[4] + B * src[5] + C * src[stride + 4] + D * src[stride + 5] + rounder) >> 8;
+        dst[5] = (A * src[5] + B * src[6] + C * src[stride + 5] + D * src[stride + 6] + rounder) >> 8;
+        dst[6] = (A * src[6] + B * src[7] + C * src[stride + 6] + D * src[stride + 7] + rounder) >> 8;
+        dst[7] = (A * src[7] + B * src[8] + C * src[stride + 7] + D * src[stride + 8] + rounder) >> 8;
+        dst   += stride;
+        src   += stride;
+    }
+}
+
+void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy,
+              int dxx, int dxy, int dyx, int dyy, int shift, int r,
+              int width, int height)
+{
+    int y, vx, vy;
+    const int s = 1 << shift;
+
+    width--;
+    height--;
+
+    for (y = 0; y < h; y++) {
+        int x;
+
+        vx = ox;
+        vy = oy;
+        for (x = 0; x < 8; x++) { // FIXME: optimize
+            int index;
+            int src_x  = vx >> 16;
+            int src_y  = vy >> 16;
+            int frac_x = src_x & (s - 1);
+            int frac_y = src_y & (s - 1);
+
+            src_x >>= shift;
+            src_y >>= shift;
+
+            if ((unsigned) src_x < width) {
+                if ((unsigned) src_y < height) {
+                    index = src_x + src_y * stride;
+                    dst[y * stride + x] =
+                        ((src[index]                        * (s - frac_x) +
+                          src[index + 1]          * frac_x) * (s - frac_y) +
+                         (src[index + stride]               * (s - frac_x) +
+                          src[index + stride + 1] * frac_x) *      frac_y  +
+                         r) >> (shift * 2);
+                } else {
+                    index = src_x + av_clip(src_y, 0, height) * stride;
+                    dst[y * stride + x] =
+                        ((src[index]               * (s - frac_x) +
+                          src[index + 1] * frac_x) *  s           +
+                         r) >> (shift * 2);
+                }
+            } else {
+                if ((unsigned) src_y < height) {
+                    index = av_clip(src_x, 0, width) + src_y * stride;
+                    dst[y * stride + x] =
+                        ((src[index]                    * (s - frac_y) +
+                          src[index + stride] * frac_y) *  s           +
+                         r) >> (shift * 2);
+                } else {
+                    index = av_clip(src_x, 0, width) +
+                            av_clip(src_y, 0, height) * stride;
+                    dst[y * stride + x] = src[index];
+                }
+            }
+
+            vx += dxx;
+            vy += dyx;
+        }
+        ox += dxy;
+        oy += dyy;
+    }
+}
+
+av_cold void ff_mpegvideodsp_init(MpegVideoDSPContext *c)
+{
+    c->gmc1 = gmc1_c;
+    c->gmc  = ff_gmc_c;
+
+    if (ARCH_PPC)
+        ff_mpegvideodsp_init_ppc(c);
+    if (ARCH_X86)
+        ff_mpegvideodsp_init_x86(c);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideodsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideodsp.h
new file mode 100644
index 000000000..293e2548d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideodsp.h
@@ -0,0 +1,47 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MPEGVIDEODSP_H
+#define AVCODEC_MPEGVIDEODSP_H
+
+#include <stdint.h>
+
+void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy,
+              int dxx, int dxy, int dyx, int dyy, int shift, int r,
+              int width, int height);
+
+typedef struct MpegVideoDSPContext {
+    /**
+     * translational global motion compensation.
+     */
+    void (*gmc1)(uint8_t *dst /* align 8 */, uint8_t *src /* align 1 */,
+                 int srcStride, int h, int x16, int y16, int rounder);
+    /**
+     * global motion compensation.
+     */
+    void (*gmc)(uint8_t *dst /* align 8 */, uint8_t *src /* align 1 */,
+                int stride, int h, int ox, int oy,
+                int dxx, int dxy, int dyx, int dyy,
+                int shift, int r, int width, int height);
+} MpegVideoDSPContext;
+
+void ff_mpegvideodsp_init(MpegVideoDSPContext *c);
+void ff_mpegvideodsp_init_ppc(MpegVideoDSPContext *c);
+void ff_mpegvideodsp_init_x86(MpegVideoDSPContext *c);
+
+#endif /* AVCODEC_MPEGVIDEODSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideoencdsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideoencdsp.c
new file mode 100644
index 000000000..a34ab3553
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideoencdsp.c
@@ -0,0 +1,256 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <assert.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "config.h"
+#include "libavutil/avassert.h"
+#include "libavutil/attributes.h"
+#include "libavutil/imgutils.h"
+#include "avcodec.h"
+#include "me_cmp.h"
+#include "mpegvideoencdsp.h"
+
+static int try_8x8basis_c(int16_t rem[64], int16_t weight[64],
+                          int16_t basis[64], int scale)
+{
+    int i;
+    unsigned int sum = 0;
+
+    for (i = 0; i < 8 * 8; i++) {
+        int b = rem[i] + ((basis[i] * scale +
+                           (1 << (BASIS_SHIFT - RECON_SHIFT - 1))) >>
+                          (BASIS_SHIFT - RECON_SHIFT));
+        int w = weight[i];
+        b >>= RECON_SHIFT;
+        av_assert2(-512 < b && b < 512);
+
+        sum += (w * b) * (w * b) >> 4;
+    }
+    return sum >> 2;
+}
+
+static void add_8x8basis_c(int16_t rem[64], int16_t basis[64], int scale)
+{
+    int i;
+
+    for (i = 0; i < 8 * 8; i++)
+        rem[i] += (basis[i] * scale +
+                   (1 << (BASIS_SHIFT - RECON_SHIFT - 1))) >>
+                  (BASIS_SHIFT - RECON_SHIFT);
+}
+
+static int pix_sum_c(uint8_t *pix, int line_size)
+{
+    int s = 0, i, j;
+
+    for (i = 0; i < 16; i++) {
+        for (j = 0; j < 16; j += 8) {
+            s   += pix[0];
+            s   += pix[1];
+            s   += pix[2];
+            s   += pix[3];
+            s   += pix[4];
+            s   += pix[5];
+            s   += pix[6];
+            s   += pix[7];
+            pix += 8;
+        }
+        pix += line_size - 16;
+    }
+    return s;
+}
+
+static int pix_norm1_c(uint8_t *pix, int line_size)
+{
+    int s = 0, i, j;
+    const uint32_t *sq = ff_square_tab + 256;
+
+    for (i = 0; i < 16; i++) {
+        for (j = 0; j < 16; j += 8) {
+#if HAVE_FAST_64BIT
+            register uint64_t x = *(uint64_t *) pix;
+            s += sq[x         & 0xff];
+            s += sq[(x >>  8) & 0xff];
+            s += sq[(x >> 16) & 0xff];
+            s += sq[(x >> 24) & 0xff];
+            s += sq[(x >> 32) & 0xff];
+            s += sq[(x >> 40) & 0xff];
+            s += sq[(x >> 48) & 0xff];
+            s += sq[(x >> 56) & 0xff];
+#else
+            register uint32_t x = *(uint32_t *) pix;
+            s += sq[x         & 0xff];
+            s += sq[(x >>  8) & 0xff];
+            s += sq[(x >> 16) & 0xff];
+            s += sq[(x >> 24) & 0xff];
+            x  = *(uint32_t *) (pix + 4);
+            s += sq[x         & 0xff];
+            s += sq[(x >>  8) & 0xff];
+            s += sq[(x >> 16) & 0xff];
+            s += sq[(x >> 24) & 0xff];
+#endif
+            pix += 8;
+        }
+        pix += line_size - 16;
+    }
+    return s;
+}
+
+/* draw the edges of width 'w' of an image of size width, height */
+// FIXME: Check that this is OK for MPEG-4 interlaced.
+static void draw_edges_8_c(uint8_t *buf, int wrap, int width, int height,
+                           int w, int h, int sides)
+{
+    uint8_t *ptr = buf, *last_line;
+    int i;
+
+    /* left and right */
+    for (i = 0; i < height; i++) {
+        memset(ptr - w, ptr[0], w);
+        memset(ptr + width, ptr[width - 1], w);
+        ptr += wrap;
+    }
+
+    /* top and bottom + corners */
+    buf -= w;
+    last_line = buf + (height - 1) * wrap;
+    if (sides & EDGE_TOP)
+        for (i = 0; i < h; i++)
+            // top
+            memcpy(buf - (i + 1) * wrap, buf, width + w + w);
+    if (sides & EDGE_BOTTOM)
+        for (i = 0; i < h; i++)
+            // bottom
+            memcpy(last_line + (i + 1) * wrap, last_line, width + w + w);
+}
+
+/* 2x2 -> 1x1 */
+static void shrink22(uint8_t *dst, int dst_wrap,
+                     const uint8_t *src, int src_wrap,
+                     int width, int height)
+{
+    int w;
+    const uint8_t *s1, *s2;
+    uint8_t *d;
+
+    for (; height > 0; height--) {
+        s1 = src;
+        s2 = s1 + src_wrap;
+        d = dst;
+        for (w = width; w >= 4; w -= 4) {
+            d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2;
+            d[1] = (s1[2] + s1[3] + s2[2] + s2[3] + 2) >> 2;
+            d[2] = (s1[4] + s1[5] + s2[4] + s2[5] + 2) >> 2;
+            d[3] = (s1[6] + s1[7] + s2[6] + s2[7] + 2) >> 2;
+            s1 += 8;
+            s2 += 8;
+            d += 4;
+        }
+        for (; w > 0; w--) {
+            d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2;
+            s1 += 2;
+            s2 += 2;
+            d++;
+        }
+        src += 2 * src_wrap;
+        dst += dst_wrap;
+    }
+}
+
+/* 4x4 -> 1x1 */
+static void shrink44(uint8_t *dst, int dst_wrap,
+                     const uint8_t *src, int src_wrap,
+                     int width, int height)
+{
+    int w;
+    const uint8_t *s1, *s2, *s3, *s4;
+    uint8_t *d;
+
+    for (; height > 0; height--) {
+        s1 = src;
+        s2 = s1 + src_wrap;
+        s3 = s2 + src_wrap;
+        s4 = s3 + src_wrap;
+        d = dst;
+        for (w = width; w > 0; w--) {
+            d[0] = (s1[0] + s1[1] + s1[2] + s1[3] +
+                    s2[0] + s2[1] + s2[2] + s2[3] +
+                    s3[0] + s3[1] + s3[2] + s3[3] +
+                    s4[0] + s4[1] + s4[2] + s4[3] + 8) >> 4;
+            s1 += 4;
+            s2 += 4;
+            s3 += 4;
+            s4 += 4;
+            d++;
+        }
+        src += 4 * src_wrap;
+        dst += dst_wrap;
+    }
+}
+
+/* 8x8 -> 1x1 */
+static void shrink88(uint8_t *dst, int dst_wrap,
+                     const uint8_t *src, int src_wrap,
+                     int width, int height)
+{
+    int w, i;
+
+    for (; height > 0; height--) {
+        for(w = width;w > 0; w--) {
+            int tmp = 0;
+            for (i = 0; i < 8; i++) {
+                tmp += src[0] + src[1] + src[2] + src[3] +
+                       src[4] + src[5] + src[6] + src[7];
+                src += src_wrap;
+            }
+            *(dst++) = (tmp + 32) >> 6;
+            src += 8 - 8 * src_wrap;
+        }
+        src += 8 * src_wrap - 8 * width;
+        dst += dst_wrap - width;
+    }
+}
+
+av_cold void ff_mpegvideoencdsp_init(MpegvideoEncDSPContext *c,
+                                     AVCodecContext *avctx)
+{
+    c->try_8x8basis = try_8x8basis_c;
+    c->add_8x8basis = add_8x8basis_c;
+
+    c->shrink[0] = av_image_copy_plane;
+    c->shrink[1] = shrink22;
+    c->shrink[2] = shrink44;
+    c->shrink[3] = shrink88;
+
+    c->pix_sum   = pix_sum_c;
+    c->pix_norm1 = pix_norm1_c;
+
+    c->draw_edges = draw_edges_8_c;
+
+    if (ARCH_ARM)
+        ff_mpegvideoencdsp_init_arm(c, avctx);
+    if (ARCH_PPC)
+        ff_mpegvideoencdsp_init_ppc(c, avctx);
+    if (ARCH_X86)
+        ff_mpegvideoencdsp_init_x86(c, avctx);
+    if (ARCH_MIPS)
+        ff_mpegvideoencdsp_init_mips(c, avctx);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideoencdsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideoencdsp.h
new file mode 100644
index 000000000..33f0282fc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/mpegvideoencdsp.h
@@ -0,0 +1,58 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MPEGVIDEOENCDSP_H
+#define AVCODEC_MPEGVIDEOENCDSP_H
+
+#include <stdint.h>
+
+#include "avcodec.h"
+
+#define BASIS_SHIFT 16
+#define RECON_SHIFT 6
+
+#define EDGE_TOP    1
+#define EDGE_BOTTOM 2
+
+typedef struct MpegvideoEncDSPContext {
+    int (*try_8x8basis)(int16_t rem[64], int16_t weight[64],
+                        int16_t basis[64], int scale);
+    void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
+
+    int (*pix_sum)(uint8_t *pix, int line_size);
+    int (*pix_norm1)(uint8_t *pix, int line_size);
+
+    void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src,
+                      int src_wrap, int width, int height);
+
+    void (*draw_edges)(uint8_t *buf, int wrap, int width, int height,
+                       int w, int h, int sides);
+} MpegvideoEncDSPContext;
+
+void ff_mpegvideoencdsp_init(MpegvideoEncDSPContext *c,
+                             AVCodecContext *avctx);
+void ff_mpegvideoencdsp_init_arm(MpegvideoEncDSPContext *c,
+                                 AVCodecContext *avctx);
+void ff_mpegvideoencdsp_init_ppc(MpegvideoEncDSPContext *c,
+                                 AVCodecContext *avctx);
+void ff_mpegvideoencdsp_init_x86(MpegvideoEncDSPContext *c,
+                                 AVCodecContext *avctx);
+void ff_mpegvideoencdsp_init_mips(MpegvideoEncDSPContext *c,
+                                  AVCodecContext *avctx);
+
+#endif /* AVCODEC_MPEGVIDEOENCDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/null_bsf.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/null_bsf.c
new file mode 100644
index 000000000..24d26dfb1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/null_bsf.c
@@ -0,0 +1,35 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Null bitstream filter -- pass the input through unchanged.
+ */
+
+#include "avcodec.h"
+#include "bsf.h"
+
+static int null_filter(AVBSFContext *ctx, AVPacket *pkt)
+{
+    return ff_bsf_get_packet_ref(ctx, pkt);
+}
+
+const AVBitStreamFilter ff_null_bsf = {
+    .name           = "null",
+    .filter         = null_filter,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/options.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/options.c
new file mode 100644
index 000000000..35e8ac931
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/options.c
@@ -0,0 +1,349 @@
+/*
+ * Copyright (c) 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Options definition for AVCodecContext.
+ */
+
+#include "avcodec.h"
+#include "internal.h"
+#include "libavutil/avassert.h"
+#include "libavutil/internal.h"
+#include "libavutil/mem.h"
+#include "libavutil/opt.h"
+#include <string.h>
+
+FF_DISABLE_DEPRECATION_WARNINGS
+#include "options_table.h"
+FF_ENABLE_DEPRECATION_WARNINGS
+
+static const char* context_to_name(void* ptr) {
+    AVCodecContext *avc= ptr;
+
+    if(avc && avc->codec && avc->codec->name)
+        return avc->codec->name;
+    else
+        return "NULL";
+}
+
+static void *codec_child_next(void *obj, void *prev)
+{
+    AVCodecContext *s = obj;
+    if (!prev && s->codec && s->codec->priv_class && s->priv_data)
+        return s->priv_data;
+    return NULL;
+}
+
+static const AVClass *codec_child_class_next(const AVClass *prev)
+{
+    AVCodec *c = NULL;
+
+    /* find the codec that corresponds to prev */
+    while (prev && (c = av_codec_next(c)))
+        if (c->priv_class == prev)
+            break;
+
+    /* find next codec with priv options */
+    while (c = av_codec_next(c))
+        if (c->priv_class)
+            return c->priv_class;
+    return NULL;
+}
+
+static AVClassCategory get_category(void *ptr)
+{
+    AVCodecContext* avctx = ptr;
+    if(avctx->codec && avctx->codec->decode) return AV_CLASS_CATEGORY_DECODER;
+    else                                     return AV_CLASS_CATEGORY_ENCODER;
+}
+
+static const AVClass av_codec_context_class = {
+    .class_name              = "AVCodecContext",
+    .item_name               = context_to_name,
+    .option                  = avcodec_options,
+    .version                 = LIBAVUTIL_VERSION_INT,
+    .log_level_offset_offset = offsetof(AVCodecContext, log_level_offset),
+    .child_next              = codec_child_next,
+    .child_class_next        = codec_child_class_next,
+    .category                = AV_CLASS_CATEGORY_ENCODER,
+    .get_category            = get_category,
+};
+
+static int init_context_defaults(AVCodecContext *s, const AVCodec *codec)
+{
+    int flags=0;
+    memset(s, 0, sizeof(AVCodecContext));
+
+    s->av_class = &av_codec_context_class;
+
+    s->codec_type = codec ? codec->type : AVMEDIA_TYPE_UNKNOWN;
+    if (codec) {
+        s->codec = codec;
+        s->codec_id = codec->id;
+    }
+
+    if(s->codec_type == AVMEDIA_TYPE_AUDIO)
+        flags= AV_OPT_FLAG_AUDIO_PARAM;
+    else if(s->codec_type == AVMEDIA_TYPE_VIDEO)
+        flags= AV_OPT_FLAG_VIDEO_PARAM;
+    else if(s->codec_type == AVMEDIA_TYPE_SUBTITLE)
+        flags= AV_OPT_FLAG_SUBTITLE_PARAM;
+    av_opt_set_defaults2(s, flags, flags);
+
+    s->time_base           = (AVRational){0,1};
+    s->framerate           = (AVRational){ 0, 1 };
+    s->pkt_timebase        = (AVRational){ 0, 1 };
+    s->get_buffer2         = avcodec_default_get_buffer2;
+    s->get_format          = avcodec_default_get_format;
+    s->execute             = avcodec_default_execute;
+    s->execute2            = avcodec_default_execute2;
+    s->sample_aspect_ratio = (AVRational){0,1};
+    s->pix_fmt             = AV_PIX_FMT_NONE;
+    s->sw_pix_fmt          = AV_PIX_FMT_NONE;
+    s->sample_fmt          = AV_SAMPLE_FMT_NONE;
+
+    s->reordered_opaque    = AV_NOPTS_VALUE;
+    if(codec && codec->priv_data_size){
+        if(!s->priv_data){
+            s->priv_data= av_mallocz(codec->priv_data_size);
+            if (!s->priv_data) {
+                return AVERROR(ENOMEM);
+            }
+        }
+        if(codec->priv_class){
+            *(const AVClass**)s->priv_data = codec->priv_class;
+            av_opt_set_defaults(s->priv_data);
+        }
+    }
+    if (codec && codec->defaults) {
+        int ret;
+        const AVCodecDefault *d = codec->defaults;
+        while (d->key) {
+            ret = av_opt_set(s, d->key, d->value, 0);
+            av_assert0(ret >= 0);
+            d++;
+        }
+    }
+    return 0;
+}
+
+#if FF_API_GET_CONTEXT_DEFAULTS
+int avcodec_get_context_defaults3(AVCodecContext *s, const AVCodec *codec)
+{
+    return init_context_defaults(s, codec);
+}
+#endif
+
+AVCodecContext *avcodec_alloc_context3(const AVCodec *codec)
+{
+    AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
+
+    if (!avctx)
+        return NULL;
+
+    if (init_context_defaults(avctx, codec) < 0) {
+        av_free(avctx);
+        return NULL;
+    }
+
+    return avctx;
+}
+
+void avcodec_free_context(AVCodecContext **pavctx)
+{
+    AVCodecContext *avctx = *pavctx;
+
+    if (!avctx)
+        return;
+
+    avcodec_close(avctx);
+
+    av_freep(&avctx->extradata);
+    av_freep(&avctx->subtitle_header);
+    av_freep(&avctx->intra_matrix);
+    av_freep(&avctx->inter_matrix);
+    av_freep(&avctx->rc_override);
+
+    av_freep(pavctx);
+}
+
+#if FF_API_COPY_CONTEXT
+static void copy_context_reset(AVCodecContext *avctx)
+{
+    int i;
+
+    av_opt_free(avctx);
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+    av_frame_free(&avctx->coded_frame);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+    av_freep(&avctx->rc_override);
+    av_freep(&avctx->intra_matrix);
+    av_freep(&avctx->inter_matrix);
+    av_freep(&avctx->extradata);
+    av_freep(&avctx->subtitle_header);
+    av_buffer_unref(&avctx->hw_frames_ctx);
+    av_buffer_unref(&avctx->hw_device_ctx);
+    for (i = 0; i < avctx->nb_coded_side_data; i++)
+        av_freep(&avctx->coded_side_data[i].data);
+    av_freep(&avctx->coded_side_data);
+    avctx->subtitle_header_size = 0;
+    avctx->nb_coded_side_data = 0;
+    avctx->extradata_size = 0;
+}
+
+int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
+{
+    const AVCodec *orig_codec = dest->codec;
+    uint8_t *orig_priv_data = dest->priv_data;
+
+    if (avcodec_is_open(dest)) { // check that the dest context is uninitialized
+        av_log(dest, AV_LOG_ERROR,
+               "Tried to copy AVCodecContext %p into already-initialized %p\n",
+               src, dest);
+        return AVERROR(EINVAL);
+    }
+
+    copy_context_reset(dest);
+
+    memcpy(dest, src, sizeof(*dest));
+    av_opt_copy(dest, src);
+
+    dest->priv_data       = orig_priv_data;
+    dest->codec           = orig_codec;
+
+    if (orig_priv_data && src->codec && src->codec->priv_class &&
+        dest->codec && dest->codec->priv_class)
+        av_opt_copy(orig_priv_data, src->priv_data);
+
+
+    /* set values specific to opened codecs back to their default state */
+    dest->slice_offset    = NULL;
+    dest->hwaccel         = NULL;
+    dest->internal        = NULL;
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+    dest->coded_frame     = NULL;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+    /* reallocate values that should be allocated separately */
+    dest->extradata       = NULL;
+    dest->coded_side_data = NULL;
+    dest->intra_matrix    = NULL;
+    dest->inter_matrix    = NULL;
+    dest->rc_override     = NULL;
+    dest->subtitle_header = NULL;
+    dest->hw_frames_ctx   = NULL;
+    dest->hw_device_ctx   = NULL;
+    dest->nb_coded_side_data = 0;
+
+#define alloc_and_copy_or_fail(obj, size, pad) \
+    if (src->obj && size > 0) { \
+        dest->obj = av_malloc(size + pad); \
+        if (!dest->obj) \
+            goto fail; \
+        memcpy(dest->obj, src->obj, size); \
+        if (pad) \
+            memset(((uint8_t *) dest->obj) + size, 0, pad); \
+    }
+    alloc_and_copy_or_fail(extradata,    src->extradata_size,
+                           AV_INPUT_BUFFER_PADDING_SIZE);
+    dest->extradata_size  = src->extradata_size;
+    alloc_and_copy_or_fail(intra_matrix, 64 * sizeof(int16_t), 0);
+    alloc_and_copy_or_fail(inter_matrix, 64 * sizeof(int16_t), 0);
+    alloc_and_copy_or_fail(rc_override,  src->rc_override_count * sizeof(*src->rc_override), 0);
+    alloc_and_copy_or_fail(subtitle_header, src->subtitle_header_size, 1);
+    av_assert0(dest->subtitle_header_size == src->subtitle_header_size);
+#undef alloc_and_copy_or_fail
+
+    if (src->hw_frames_ctx) {
+        dest->hw_frames_ctx = av_buffer_ref(src->hw_frames_ctx);
+        if (!dest->hw_frames_ctx)
+            goto fail;
+    }
+
+    return 0;
+
+fail:
+    copy_context_reset(dest);
+    return AVERROR(ENOMEM);
+}
+#endif
+
+const AVClass *avcodec_get_class(void)
+{
+    return &av_codec_context_class;
+}
+
+#define FOFFSET(x) offsetof(AVFrame,x)
+
+static const AVOption frame_options[]={
+{"best_effort_timestamp", "", FOFFSET(best_effort_timestamp), AV_OPT_TYPE_INT64, {.i64 = AV_NOPTS_VALUE }, INT64_MIN, INT64_MAX, 0},
+{"pkt_pos", "", FOFFSET(pkt_pos), AV_OPT_TYPE_INT64, {.i64 = -1 }, INT64_MIN, INT64_MAX, 0},
+{"pkt_size", "", FOFFSET(pkt_size), AV_OPT_TYPE_INT64, {.i64 = -1 }, INT64_MIN, INT64_MAX, 0},
+{"sample_aspect_ratio", "", FOFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0 }, 0, INT_MAX, 0},
+{"width", "", FOFFSET(width), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"height", "", FOFFSET(height), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"format", "", FOFFSET(format), AV_OPT_TYPE_INT, {.i64 = -1 }, 0, INT_MAX, 0},
+{"channel_layout", "", FOFFSET(channel_layout), AV_OPT_TYPE_INT64, {.i64 = 0 }, 0, INT64_MAX, 0},
+{"sample_rate", "", FOFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{NULL},
+};
+
+static const AVClass av_frame_class = {
+    .class_name              = "AVFrame",
+    .item_name               = NULL,
+    .option                  = frame_options,
+    .version                 = LIBAVUTIL_VERSION_INT,
+};
+
+const AVClass *avcodec_get_frame_class(void)
+{
+    return &av_frame_class;
+}
+
+#define SROFFSET(x) offsetof(AVSubtitleRect,x)
+
+static const AVOption subtitle_rect_options[]={
+{"x", "", SROFFSET(x), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"y", "", SROFFSET(y), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"w", "", SROFFSET(w), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"h", "", SROFFSET(h), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"type", "", SROFFSET(type), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"flags", "", SROFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, 1, 0, "flags"},
+{"forced", "", SROFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, 1, 0},
+{NULL},
+};
+
+static const AVClass av_subtitle_rect_class = {
+    .class_name             = "AVSubtitleRect",
+    .item_name              = NULL,
+    .option                 = subtitle_rect_options,
+    .version                = LIBAVUTIL_VERSION_INT,
+};
+
+const AVClass *avcodec_get_subtitle_rect_class(void)
+{
+    return &av_subtitle_rect_class;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/options_table.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/options_table.h
new file mode 100644
index 000000000..4a266eca1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/options_table.h
@@ -0,0 +1,495 @@
+/*
+ * Copyright (c) 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_OPTIONS_TABLE_H
+#define AVCODEC_OPTIONS_TABLE_H
+
+#include <float.h>
+#include <limits.h>
+#include <stdint.h>
+
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "version.h"
+
+#define OFFSET(x) offsetof(AVCodecContext,x)
+#define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
+//these names are too long to be readable
+#define V AV_OPT_FLAG_VIDEO_PARAM
+#define A AV_OPT_FLAG_AUDIO_PARAM
+#define S AV_OPT_FLAG_SUBTITLE_PARAM
+#define E AV_OPT_FLAG_ENCODING_PARAM
+#define D AV_OPT_FLAG_DECODING_PARAM
+
+#define AV_CODEC_DEFAULT_BITRATE 200*1000
+
+static const AVOption avcodec_options[] = {
+{"b", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT64, {.i64 = AV_CODEC_DEFAULT_BITRATE }, 0, INT64_MAX, A|V|E},
+{"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT64, {.i64 = 128*1000 }, 0, INT_MAX, A|E},
+{"bt", "Set video bitrate tolerance (in bits/s). In 1-pass mode, bitrate tolerance specifies how far "
+       "ratecontrol is willing to deviate from the target average bitrate value. This is not related "
+       "to minimum/maximum bitrate. Lowering tolerance too much has an adverse effect on quality.",
+       OFFSET(bit_rate_tolerance), AV_OPT_TYPE_INT, {.i64 = AV_CODEC_DEFAULT_BITRATE*20 }, 1, INT_MAX, V|E},
+{"flags", NULL, OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, 0, UINT_MAX, V|A|S|E|D, "flags"},
+{"unaligned", "allow decoders to produce unaligned output", 0, AV_OPT_TYPE_CONST, { .i64 = AV_CODEC_FLAG_UNALIGNED }, INT_MIN, INT_MAX, V | D, "flags" },
+{"mv4", "use four motion vectors per macroblock (MPEG-4)", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_4MV }, INT_MIN, INT_MAX, V|E, "flags"},
+{"qpel", "use 1/4-pel motion compensation", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_QPEL }, INT_MIN, INT_MAX, V|E, "flags"},
+{"loop", "use loop filter", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_LOOP_FILTER }, INT_MIN, INT_MAX, V|E, "flags"},
+{"qscale", "use fixed qscale", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_QSCALE }, INT_MIN, INT_MAX, 0, "flags"},
+{"pass1", "use internal 2-pass ratecontrol in first  pass mode", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_PASS1 }, INT_MIN, INT_MAX, 0, "flags"},
+{"pass2", "use internal 2-pass ratecontrol in second pass mode", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_PASS2 }, INT_MIN, INT_MAX, 0, "flags"},
+{"gray", "only decode/encode grayscale", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_GRAY }, INT_MIN, INT_MAX, V|E|D, "flags"},
+{"psnr", "error[?] variables will be set during encoding", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_PSNR }, INT_MIN, INT_MAX, V|E, "flags"},
+{"truncated", "Input bitstream might be randomly truncated", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_TRUNCATED }, INT_MIN, INT_MAX, V|D, "flags"},
+{"ildct", "use interlaced DCT", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_INTERLACED_DCT }, INT_MIN, INT_MAX, V|E, "flags"},
+{"low_delay", "force low delay", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_LOW_DELAY }, INT_MIN, INT_MAX, V|D|E, "flags"},
+{"global_header", "place global headers in extradata instead of every keyframe", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_GLOBAL_HEADER }, INT_MIN, INT_MAX, V|A|E, "flags"},
+{"bitexact", "use only bitexact functions (except (I)DCT)", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_BITEXACT }, INT_MIN, INT_MAX, A|V|S|D|E, "flags"},
+{"aic", "H.263 advanced intra coding / MPEG-4 AC prediction", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_AC_PRED }, INT_MIN, INT_MAX, V|E, "flags"},
+{"ilme", "interlaced motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_INTERLACED_ME }, INT_MIN, INT_MAX, V|E, "flags"},
+{"cgop", "closed GOP", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_CLOSED_GOP }, INT_MIN, INT_MAX, V|E, "flags"},
+{"output_corrupt", "Output even potentially corrupted frames", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_OUTPUT_CORRUPT }, INT_MIN, INT_MAX, V|D, "flags"},
+{"drop_changed", "Drop frames whose parameters differ from first decoded frame", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_DROPCHANGED }, INT_MIN, INT_MAX, A|V|D, "flags"},
+{"flags2", NULL, OFFSET(flags2), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT}, 0, UINT_MAX, V|A|E|D, "flags2"},
+{"fast", "allow non-spec-compliant speedup tricks", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_FAST }, INT_MIN, INT_MAX, V|E, "flags2"},
+{"noout", "skip bitstream encoding", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_NO_OUTPUT }, INT_MIN, INT_MAX, V|E, "flags2"},
+{"ignorecrop", "ignore cropping information from sps", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_IGNORE_CROP }, INT_MIN, INT_MAX, V|D, "flags2"},
+{"local_header", "place global headers at every keyframe instead of in extradata", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_LOCAL_HEADER }, INT_MIN, INT_MAX, V|E, "flags2"},
+{"chunks", "Frame data might be split into multiple chunks", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_CHUNKS }, INT_MIN, INT_MAX, V|D, "flags2"},
+{"showall", "Show all frames before the first keyframe", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_SHOW_ALL }, INT_MIN, INT_MAX, V|D, "flags2"},
+{"export_mvs", "export motion vectors through frame side data", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_EXPORT_MVS}, INT_MIN, INT_MAX, V|D, "flags2"},
+{"skip_manual", "do not skip samples and export skip information as frame side data", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_SKIP_MANUAL}, INT_MIN, INT_MAX, V|D, "flags2"},
+{"ass_ro_flush_noop", "do not reset ASS ReadOrder field on flush", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_RO_FLUSH_NOOP}, INT_MIN, INT_MAX, S|D, "flags2"},
+{"time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, INT_MAX},
+{"g", "set the group of picture (GOP) size", OFFSET(gop_size), AV_OPT_TYPE_INT, {.i64 = 12 }, INT_MIN, INT_MAX, V|E},
+{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, A|D|E},
+{"ac", "set number of audio channels", OFFSET(channels), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, A|D|E},
+{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|E},
+{"frame_size", NULL, OFFSET(frame_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, A|E},
+{"frame_number", NULL, OFFSET(frame_number), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"delay", NULL, OFFSET(delay), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"qcomp", "video quantizer scale compression (VBR). Constant of ratecontrol equation. "
+          "Recommended range for default rc_eq: 0.0-1.0",
+          OFFSET(qcompress), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -FLT_MAX, FLT_MAX, V|E},
+{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -1, FLT_MAX, V|E},
+{"qmin", "minimum video quantizer scale (VBR)", OFFSET(qmin), AV_OPT_TYPE_INT, {.i64 = 2 }, -1, 69, V|E},
+{"qmax", "maximum video quantizer scale (VBR)", OFFSET(qmax), AV_OPT_TYPE_INT, {.i64 = 31 }, -1, 1024, V|E},
+{"qdiff", "maximum difference between the quantizer scales (VBR)", OFFSET(max_qdiff), AV_OPT_TYPE_INT, {.i64 = 3 }, INT_MIN, INT_MAX, V|E},
+{"bf", "set maximum number of B-frames between non-B-frames", OFFSET(max_b_frames), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, -1, INT_MAX, V|E},
+{"b_qfactor", "QP factor between P- and B-frames", OFFSET(b_quant_factor), AV_OPT_TYPE_FLOAT, {.dbl = 1.25 }, -FLT_MAX, FLT_MAX, V|E},
+#if FF_API_PRIVATE_OPT
+{"b_strategy", "strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, V|E},
+{"ps", "RTP payload size in bytes", OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#endif
+#if FF_API_STAT_BITS
+{"mv_bits", NULL, OFFSET(mv_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"header_bits", NULL, OFFSET(header_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"i_tex_bits", NULL, OFFSET(i_tex_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"p_tex_bits", NULL, OFFSET(p_tex_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"i_count", NULL, OFFSET(i_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"p_count", NULL, OFFSET(p_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"skip_count", NULL, OFFSET(skip_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"misc_bits", NULL, OFFSET(misc_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"frame_bits", NULL, OFFSET(frame_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+#endif
+{"codec_tag", NULL, OFFSET(codec_tag), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"bug", "work around not autodetected encoder bugs", OFFSET(workaround_bugs), AV_OPT_TYPE_FLAGS, {.i64 = FF_BUG_AUTODETECT }, INT_MIN, INT_MAX, V|D, "bug"},
+{"autodetect", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_AUTODETECT }, INT_MIN, INT_MAX, V|D, "bug"},
+{"xvid_ilace", "Xvid interlacing bug (autodetected if FOURCC == XVIX)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_XVID_ILACE }, INT_MIN, INT_MAX, V|D, "bug"},
+{"ump4", "(autodetected if FOURCC == UMP4)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_UMP4 }, INT_MIN, INT_MAX, V|D, "bug"},
+{"no_padding", "padding bug (autodetected)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_NO_PADDING }, INT_MIN, INT_MAX, V|D, "bug"},
+{"amv", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_AMV }, INT_MIN, INT_MAX, V|D, "bug"},
+{"qpel_chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_QPEL_CHROMA }, INT_MIN, INT_MAX, V|D, "bug"},
+{"std_qpel", "old standard qpel (autodetected per FOURCC/version)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_STD_QPEL }, INT_MIN, INT_MAX, V|D, "bug"},
+{"qpel_chroma2", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_QPEL_CHROMA2 }, INT_MIN, INT_MAX, V|D, "bug"},
+{"direct_blocksize", "direct-qpel-blocksize bug (autodetected per FOURCC/version)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_DIRECT_BLOCKSIZE }, INT_MIN, INT_MAX, V|D, "bug"},
+{"edge", "edge padding bug (autodetected per FOURCC/version)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_EDGE }, INT_MIN, INT_MAX, V|D, "bug"},
+{"hpel_chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_HPEL_CHROMA }, INT_MIN, INT_MAX, V|D, "bug"},
+{"dc_clip", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_DC_CLIP }, INT_MIN, INT_MAX, V|D, "bug"},
+{"ms", "work around various bugs in Microsoft's broken decoders", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_MS }, INT_MIN, INT_MAX, V|D, "bug"},
+{"trunc", "truncated frames", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_TRUNCATED}, INT_MIN, INT_MAX, V|D, "bug"},
+{"iedge", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_IEDGE }, INT_MIN, INT_MAX, V|D, "bug"},
+{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
+{"very", "strictly conform to a older more strict version of the spec or reference software", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_VERY_STRICT }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
+{"strict", "strictly conform to all the things in the spec no matter what the consequences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_STRICT }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
+{"normal", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_NORMAL }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
+{"unofficial", "allow unofficial extensions", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_UNOFFICIAL }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
+{"experimental", "allow non-standardized experimental things", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_EXPERIMENTAL }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
+{"b_qoffset", "QP offset between P- and B-frames", OFFSET(b_quant_offset), AV_OPT_TYPE_FLOAT, {.dbl = 1.25 }, -FLT_MAX, FLT_MAX, V|E},
+{"err_detect", "set error detection flags", OFFSET(err_recognition), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"crccheck", "verify embedded CRCs", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"bitstream", "detect bitstream specification deviations", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BITSTREAM }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"buffer", "detect improper bitstream length", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BUFFER }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"explode", "abort decoding on minor error detection", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_EXPLODE }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"ignore_err", "ignore errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_IGNORE_ERR }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"careful",    "consider things that violate the spec, are fast to check and have not been seen in the wild as errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CAREFUL }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"compliant",  "consider all spec non compliancies as errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_COMPLIANT }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"aggressive", "consider things that a sane encoder should not do as an error", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_AGGRESSIVE }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"has_b_frames", NULL, OFFSET(has_b_frames), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX},
+{"block_align", NULL, OFFSET(block_align), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX},
+#if FF_API_PRIVATE_OPT
+{"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#endif
+{"rc_override_count", NULL, OFFSET(rc_override_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"maxrate", "maximum bitrate (in bits/s). Used for VBV together with bufsize.", OFFSET(rc_max_rate), AV_OPT_TYPE_INT64, {.i64 = DEFAULT }, 0, INT_MAX, V|A|E},
+{"minrate", "minimum bitrate (in bits/s). Most useful in setting up a CBR encode. It is of little use otherwise.",
+            OFFSET(rc_min_rate), AV_OPT_TYPE_INT64, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
+{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|V|E},
+{"i_qfactor", "QP factor between P- and I-frames", OFFSET(i_quant_factor), AV_OPT_TYPE_FLOAT, {.dbl = -0.8 }, -FLT_MAX, FLT_MAX, V|E},
+{"i_qoffset", "QP offset between P- and I-frames", OFFSET(i_quant_offset), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, -FLT_MAX, FLT_MAX, V|E},
+{"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, "dct"},
+{"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"},
+{"fastint", "fast integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"},
+{"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"},
+{"mmx", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, "dct"},
+{"altivec", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, "dct"},
+{"faan", "floating point AAN DCT", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"},
+{"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
+{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
+{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
+{"p_mask", "inter masking", OFFSET(p_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
+{"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
+{"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, "idct"},
+{"auto", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"int", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplemmx", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"arm", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"altivec", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplearm", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplearmv5te", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplearmv6", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simpleneon", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"xvid", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"xvidmmx", "deprecated, for compatibility only", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"faani", "floating point AAN IDCT", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"},
+{"simpleauto", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEAUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"slice_count", NULL, OFFSET(slice_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"ec", "set error concealment strategy", OFFSET(error_concealment), AV_OPT_TYPE_FLAGS, {.i64 = 3 }, INT_MIN, INT_MAX, V|D, "ec"},
+{"guess_mvs", "iterative motion vector (MV) search (slow)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_EC_GUESS_MVS }, INT_MIN, INT_MAX, V|D, "ec"},
+{"deblock", "use strong deblock filter for damaged MBs", 0, AV_OPT_TYPE_CONST, {.i64 = FF_EC_DEBLOCK }, INT_MIN, INT_MAX, V|D, "ec"},
+{"favor_inter", "favor predicting from the previous frame", 0, AV_OPT_TYPE_CONST, {.i64 = FF_EC_FAVOR_INTER }, INT_MIN, INT_MAX, V|D, "ec"},
+{"bits_per_coded_sample", NULL, OFFSET(bits_per_coded_sample), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX},
+#if FF_API_PRIVATE_OPT
+{"pred", "prediction method", OFFSET(prediction_method), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "pred"},
+{"left", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PRED_LEFT }, INT_MIN, INT_MAX, V|E, "pred"},
+{"plane", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PRED_PLANE }, INT_MIN, INT_MAX, V|E, "pred"},
+{"median", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PRED_MEDIAN }, INT_MIN, INT_MAX, V|E, "pred"},
+#endif
+{"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10, V|E},
+{"sar",    "sample aspect ratio", OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10, V|E},
+{"debug", "print specific debug info", OFFSET(debug), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, 0, INT_MAX, V|A|S|E|D, "debug"},
+{"pict", "picture info", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_PICT_INFO }, INT_MIN, INT_MAX, V|D, "debug"},
+{"rc", "rate control", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_RC }, INT_MIN, INT_MAX, V|E, "debug"},
+{"bitstream", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_BITSTREAM }, INT_MIN, INT_MAX, V|D, "debug"},
+{"mb_type", "macroblock (MB) type", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MB_TYPE }, INT_MIN, INT_MAX, V|D, "debug"},
+{"qp", "per-block quantization parameter (QP)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_QP }, INT_MIN, INT_MAX, V|D, "debug"},
+#if FF_API_DEBUG_MV
+{"mv", "motion vector", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MV }, INT_MIN, INT_MAX, V|D, "debug"},
+#endif
+{"dct_coeff", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_DCT_COEFF }, INT_MIN, INT_MAX, V|D, "debug"},
+{"green_metadata", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_GREEN_MD }, INT_MIN, INT_MAX, V|D, "debug"},
+{"skip", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_SKIP }, INT_MIN, INT_MAX, V|D, "debug"},
+{"startcode", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_STARTCODE }, INT_MIN, INT_MAX, V|D, "debug"},
+{"er", "error recognition", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_ER }, INT_MIN, INT_MAX, V|D, "debug"},
+{"mmco", "memory management control operations (H.264)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MMCO }, INT_MIN, INT_MAX, V|D, "debug"},
+{"bugs", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_BUGS }, INT_MIN, INT_MAX, V|D, "debug"},
+#if FF_API_DEBUG_MV
+{"vis_qp", "visualize quantization parameter (QP), lower QP are tinted greener", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_QP }, INT_MIN, INT_MAX, V|D, "debug"},
+{"vis_mb_type", "visualize block types", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MB_TYPE }, INT_MIN, INT_MAX, V|D, "debug"},
+#endif
+{"buffers", "picture buffer allocations", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_BUFFERS }, INT_MIN, INT_MAX, V|D, "debug"},
+{"thread_ops", "threading operations", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_THREADS }, INT_MIN, INT_MAX, V|A|D, "debug"},
+{"nomc", "skip motion compensation", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_NOMC }, INT_MIN, INT_MAX, V|A|D, "debug"},
+{"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"last_pred", "amount of motion predictors from the previous frame", OFFSET(last_predictor_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#if FF_API_PRIVATE_OPT
+{"preme", "pre motion estimation", OFFSET(pre_me), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#endif
+{"pre_dia_size", "diamond type & size for motion estimation pre-pass", OFFSET(pre_dia_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"subq", "sub-pel motion estimation quality", OFFSET(me_subpel_quality), AV_OPT_TYPE_INT, {.i64 = 8 }, INT_MIN, INT_MAX, V|E},
+{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"global_quality", NULL, OFFSET(global_quality), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
+#if FF_API_CODER_TYPE
+{"coder", NULL, OFFSET(coder_type), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "coder"},
+{"vlc", "variable length coder / Huffman coder", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_VLC }, INT_MIN, INT_MAX, V|E, "coder"},
+{"ac", "arithmetic coder", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_AC }, INT_MIN, INT_MAX, V|E, "coder"},
+{"raw", "raw (no encoding)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_RAW }, INT_MIN, INT_MAX, V|E, "coder"},
+{"rle", "run-length coder", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_RLE }, INT_MIN, INT_MAX, V|E, "coder"},
+#endif /* FF_API_CODER_TYPE */
+#if FF_API_PRIVATE_OPT
+{"context", "context model", OFFSET(context_model), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#endif
+{"slice_flags", NULL, OFFSET(slice_flags), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+{"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, 2, V|E, "mbd"},
+{"simple", "use mbcmp", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MB_DECISION_SIMPLE }, INT_MIN, INT_MAX, V|E, "mbd"},
+{"bits", "use fewest bits", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MB_DECISION_BITS }, INT_MIN, INT_MAX, V|E, "mbd"},
+{"rd", "use best rate distortion", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MB_DECISION_RD }, INT_MIN, INT_MAX, V|E, "mbd"},
+#if FF_API_PRIVATE_OPT
+{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#endif
+#if FF_API_PRIVATE_OPT
+{"nr", "noise reduction", OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#endif
+{"rc_init_occupancy", "number of bits which should be loaded into the rc buffer before decoding starts", OFFSET(rc_initial_buffer_occupancy), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"threads", "set the number of threads", OFFSET(thread_count), AV_OPT_TYPE_INT, {.i64 = 1 }, 0, INT_MAX, V|A|E|D, "threads"},
+{"auto", "autodetect a suitable number of threads to use", 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, INT_MIN, INT_MAX, V|E|D, "threads"},
+{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), AV_OPT_TYPE_INT, {.i64 = 0 }, -8, 16, V|E},
+{"nssew", "nsse weight", OFFSET(nsse_weight), AV_OPT_TYPE_INT, {.i64 = 8 }, INT_MIN, INT_MAX, V|E},
+{"skip_top", "number of macroblock rows at the top which are skipped", OFFSET(skip_top), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|D},
+{"skip_bottom", "number of macroblock rows at the bottom which are skipped", OFFSET(skip_bottom), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|D},
+{"profile", NULL, OFFSET(profile), AV_OPT_TYPE_INT, {.i64 = FF_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "profile"},
+{"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "profile"},
+{"aac_main", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_MAIN }, INT_MIN, INT_MAX, A|E, "profile"},
+{"aac_low", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_LOW }, INT_MIN, INT_MAX, A|E, "profile"},
+{"aac_ssr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_SSR }, INT_MIN, INT_MAX, A|E, "profile"},
+{"aac_ltp", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_LTP }, INT_MIN, INT_MAX, A|E, "profile"},
+{"aac_he", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_HE }, INT_MIN, INT_MAX, A|E, "profile"},
+{"aac_he_v2", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_HE_V2 }, INT_MIN, INT_MAX, A|E, "profile"},
+{"aac_ld", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_LD }, INT_MIN, INT_MAX, A|E, "profile"},
+{"aac_eld", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_ELD }, INT_MIN, INT_MAX, A|E, "profile"},
+{"mpeg2_aac_low", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_MPEG2_AAC_LOW }, INT_MIN, INT_MAX, A|E, "profile"},
+{"mpeg2_aac_he", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_MPEG2_AAC_HE }, INT_MIN, INT_MAX, A|E, "profile"},
+{"dts", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_DTS }, INT_MIN, INT_MAX, A|E, "profile"},
+{"dts_es", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_DTS_ES }, INT_MIN, INT_MAX, A|E, "profile"},
+{"dts_96_24", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_DTS_96_24 }, INT_MIN, INT_MAX, A|E, "profile"},
+{"dts_hd_hra", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_DTS_HD_HRA }, INT_MIN, INT_MAX, A|E, "profile"},
+{"dts_hd_ma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_DTS_HD_MA }, INT_MIN, INT_MAX, A|E, "profile"},
+{"mpeg4_sp",   NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_MPEG4_SIMPLE }, INT_MIN, INT_MAX, V|E, "profile"},
+{"mpeg4_core", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_MPEG4_CORE }, INT_MIN, INT_MAX, V|E, "profile"},
+{"mpeg4_main", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_MPEG4_MAIN }, INT_MIN, INT_MAX, V|E, "profile"},
+{"mpeg4_asp",  NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_MPEG4_ADVANCED_SIMPLE }, INT_MIN, INT_MAX, V|E, "profile"},
+{"main10",  NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_HEVC_MAIN_10 }, INT_MIN, INT_MAX, V|E, "profile"},
+{"msbc",  NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_SBC_MSBC }, INT_MIN, INT_MAX, A|E, "profile"},
+{"level", NULL, OFFSET(level), AV_OPT_TYPE_INT, {.i64 = FF_LEVEL_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "level"},
+{"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_LEVEL_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "level"},
+{"lowres", "decode at 1= 1/2, 2=1/4, 3=1/8 resolutions", OFFSET(lowres), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, V|A|D},
+#if FF_API_PRIVATE_OPT
+{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+#endif
+{"cmp", "full-pel ME compare function", OFFSET(me_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"subcmp", "sub-pel ME compare function", OFFSET(me_sub_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"ildctcmp", "interlaced DCT compare function", OFFSET(ildct_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"sad", "sum of absolute differences, fast", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"sse", "sum of squared errors", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"satd", "sum of absolute Hadamard transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SATD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"dct", "sum of absolute DCT transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"psnr", "sum of squared quantization errors (avoid, low quality)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_PSNR }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"bit", "number of bits needed for the block", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_BIT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"rd", "rate distortion optimal, slow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_RD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"zero", "0", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_ZERO }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"vsad", "sum of absolute vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"vsse", "sum of squared vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"nsse", "noise preserving sum of squared differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_NSSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+#if CONFIG_SNOW_ENCODER
+{"w53", "5/3 wavelet, only used in snow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_W53 }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"w97", "9/7 wavelet, only used in snow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_W97 }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+#endif
+{"dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_CHROMA }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"msad", "sum of absolute differences, median predicted", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_MEDIAN_SAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"mblmin", "minimum macroblock Lagrange factor (VBR)", OFFSET(mb_lmin), AV_OPT_TYPE_INT, {.i64 = FF_QP2LAMBDA * 2 }, 1, FF_LAMBDA_MAX, V|E},
+{"mblmax", "maximum macroblock Lagrange factor (VBR)", OFFSET(mb_lmax), AV_OPT_TYPE_INT, {.i64 = FF_QP2LAMBDA * 31 }, 1, FF_LAMBDA_MAX, V|E},
+#if FF_API_PRIVATE_OPT
+{"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {.i64 = 256 }, INT_MIN, INT_MAX, V|E},
+#endif
+{"skip_loop_filter", "skip loop filtering process for the selected frames", OFFSET(skip_loop_filter), AV_OPT_TYPE_INT, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"skip_idct"       , "skip IDCT/dequantization for the selected frames",    OFFSET(skip_idct),        AV_OPT_TYPE_INT, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"skip_frame"      , "skip decoding for the selected frames",               OFFSET(skip_frame),       AV_OPT_TYPE_INT, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"none"            , "discard no frame",                    0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONE    }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"default"         , "discard useless frames",              0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"noref"           , "discard all non-reference frames",    0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONREF  }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"bidir"           , "discard all bidirectional frames",    0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_BIDIR   }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"nokey"           , "discard all frames except keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONKEY  }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"nointra"         , "discard all frames except I frames",  0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONINTRA}, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"all"             , "discard all frames",                  0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_ALL     }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), AV_OPT_TYPE_INT, {.i64 = 1 }, 0, 4, V|E},
+#if FF_API_PRIVATE_OPT
+{"brd_scale", "downscale frames for dynamic B-frame decision", OFFSET(brd_scale), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, 10, V|E},
+#endif
+{"keyint_min", "minimum interval between IDR-frames", OFFSET(keyint_min), AV_OPT_TYPE_INT, {.i64 = 25 }, INT_MIN, INT_MAX, V|E},
+{"refs", "reference frames to consider for motion compensation", OFFSET(refs), AV_OPT_TYPE_INT, {.i64 = 1 }, INT_MIN, INT_MAX, V|E},
+#if FF_API_PRIVATE_OPT
+{"chromaoffset", "chroma QP offset from luma", OFFSET(chromaoffset), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#endif
+{"trellis", "rate-distortion optimal quantization", OFFSET(trellis), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
+{"mv0_threshold", NULL, OFFSET(mv0_threshold), AV_OPT_TYPE_INT, {.i64 = 256 }, 0, INT_MAX, V|E},
+#if FF_API_PRIVATE_OPT
+{"b_sensitivity", "adjust sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), AV_OPT_TYPE_INT, {.i64 = 40 }, 1, INT_MAX, V|E},
+#endif
+{"compression_level", NULL, OFFSET(compression_level), AV_OPT_TYPE_INT, {.i64 = FF_COMPRESSION_DEFAULT }, INT_MIN, INT_MAX, V|A|E},
+#if FF_API_PRIVATE_OPT
+{"min_prediction_order", NULL, OFFSET(min_prediction_order), AV_OPT_TYPE_INT, {.i64 = -1 }, INT_MIN, INT_MAX, A|E},
+{"max_prediction_order", NULL, OFFSET(max_prediction_order), AV_OPT_TYPE_INT, {.i64 = -1 }, INT_MIN, INT_MAX, A|E},
+{"timecode_frame_start", "GOP timecode frame start number, in non-drop-frame format", OFFSET(timecode_frame_start), AV_OPT_TYPE_INT64, {.i64 = -1 }, -1, INT64_MAX, V|E},
+#endif
+{"bits_per_raw_sample", NULL, OFFSET(bits_per_raw_sample), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX},
+{"channel_layout", NULL, OFFSET(channel_layout), AV_OPT_TYPE_UINT64, {.i64 = DEFAULT }, 0, UINT64_MAX, A|E|D, "channel_layout"},
+{"request_channel_layout", NULL, OFFSET(request_channel_layout), AV_OPT_TYPE_UINT64, {.i64 = DEFAULT }, 0, UINT64_MAX, A|D, "request_channel_layout"},
+{"rc_max_vbv_use", NULL, OFFSET(rc_max_available_vbv_use), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0.0, FLT_MAX, V|E},
+{"rc_min_vbv_use", NULL, OFFSET(rc_min_vbv_overflow_use),  AV_OPT_TYPE_FLOAT, {.dbl = 3 },     0.0, FLT_MAX, V|E},
+{"ticks_per_frame", NULL, OFFSET(ticks_per_frame), AV_OPT_TYPE_INT, {.i64 = 1 }, 1, INT_MAX, A|V|E|D},
+{"color_primaries", "color primaries", OFFSET(color_primaries), AV_OPT_TYPE_INT, {.i64 = AVCOL_PRI_UNSPECIFIED }, 1, INT_MAX, V|E|D, "color_primaries_type"},
+{"bt709",       "BT.709",         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT709 },        INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"unknown",     "Unspecified",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"bt470m",      "BT.470 M",       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT470M },       INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"bt470bg",     "BT.470 BG",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT470BG },      INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte170m",   "SMPTE 170 M",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE170M },    INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte240m",   "SMPTE 240 M",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE240M },    INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"film",        "Film",           0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_FILM },         INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"bt2020",      "BT.2020",        0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT2020 },       INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte428",    "SMPTE 428-1",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE428 },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte428_1",  "SMPTE 428-1",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE428 },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte431",    "SMPTE 431-2",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE431 },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte432",    "SMPTE 422-1",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE432 },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"jedec-p22",   "JEDEC P22",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_JEDEC_P22 },    INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"unspecified", "Unspecified",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"color_trc", "color transfer characteristics", OFFSET(color_trc), AV_OPT_TYPE_INT, {.i64 = AVCOL_TRC_UNSPECIFIED }, 1, INT_MAX, V|E|D, "color_trc_type"},
+{"bt709",        "BT.709",           0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT709 },        INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"unknown",      "Unspecified",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"gamma22",      "BT.470 M",         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_GAMMA22 },      INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"gamma28",      "BT.470 BG",        0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_GAMMA28 },      INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"smpte170m",    "SMPTE 170 M",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE170M },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"smpte240m",    "SMPTE 240 M",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE240M },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"linear",       "Linear",           0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LINEAR },       INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"log100",       "Log",              0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG },          INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"log316",       "Log square root",  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG_SQRT },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"iec61966-2-4", "IEC 61966-2-4",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_4 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"bt1361e",      "BT.1361",          0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT1361_ECG },   INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"iec61966-2-1", "IEC 61966-2-1",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_1 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"bt2020-10",    "BT.2020 - 10 bit", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_10 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"bt2020-12",    "BT.2020 - 12 bit", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_12 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"smpte2084",    "SMPTE 2084",       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE2084 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"smpte428",     "SMPTE 428-1",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE428 },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"arib-std-b67", "ARIB STD-B67",     0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_ARIB_STD_B67 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"unspecified",  "Unspecified",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"log",          "Log",              0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG },          INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"log_sqrt",     "Log square root",  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG_SQRT },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"iec61966_2_4", "IEC 61966-2-4",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_4 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"bt1361",       "BT.1361",          0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT1361_ECG },   INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"iec61966_2_1", "IEC 61966-2-1",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_1 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"bt2020_10bit", "BT.2020 - 10 bit", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_10 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"bt2020_12bit", "BT.2020 - 12 bit", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_12 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"smpte428_1",   "SMPTE 428-1",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE428 },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"colorspace", "color space", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = AVCOL_SPC_UNSPECIFIED }, 0, INT_MAX, V|E|D, "colorspace_type"},
+{"rgb",         "RGB",         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_RGB },         INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"bt709",       "BT.709",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT709 },       INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"unknown",     "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"fcc",         "FCC",         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_FCC },         INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"bt470bg",     "BT.470 BG",   0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT470BG },     INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"smpte170m",   "SMPTE 170 M", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_SMPTE170M },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"smpte240m",   "SMPTE 240 M", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_SMPTE240M },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"ycgco",       "YCGCO",       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_YCGCO },       INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"bt2020nc",    "BT.2020 NCL", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_NCL },  INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"bt2020c",     "BT.2020 CL",  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_CL },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"smpte2085",   "SMPTE 2085",  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_SMPTE2085 },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"ycocg",       "YCGCO",       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_YCGCO },       INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"bt2020_ncl",  "BT.2020 NCL", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_NCL },  INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"bt2020_cl",   "BT.2020 CL",  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_CL },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"color_range", "color range", OFFSET(color_range), AV_OPT_TYPE_INT, {.i64 = AVCOL_RANGE_UNSPECIFIED }, 0, INT_MAX, V|E|D, "color_range_type"},
+{"unknown", "Unspecified",     0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "color_range_type"},
+{"tv", "MPEG (219*2^(n-8))",   0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_MPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
+{"pc", "JPEG (2^n-1)",         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_JPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
+{"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "color_range_type"},
+{"mpeg", "MPEG (219*2^(n-8))", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_MPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
+{"jpeg", "JPEG (2^n-1)",       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_JPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
+{"chroma_sample_location", "chroma sample location", OFFSET(chroma_sample_location), AV_OPT_TYPE_INT, {.i64 = AVCHROMA_LOC_UNSPECIFIED }, 0, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"unknown",     "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"left",        "Left",        0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_LEFT },        INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"center",      "Center",      0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_CENTER },      INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"topleft",     "Top-left",    0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_TOPLEFT },     INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"top",         "Top",         0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_TOP },         INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"bottomleft",  "Bottom-left", 0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_BOTTOMLEFT },  INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"bottom",      "Bottom",      0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_BOTTOM },      INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"log_level_offset", "set the log level offset", OFFSET(log_level_offset), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX },
+{"slices", "set the number of slices, used in parallelized encoding", OFFSET(slices), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, V|E},
+{"thread_type", "select multithreading type", OFFSET(thread_type), AV_OPT_TYPE_FLAGS, {.i64 = FF_THREAD_SLICE|FF_THREAD_FRAME }, 0, INT_MAX, V|A|E|D, "thread_type"},
+{"slice", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_THREAD_SLICE }, INT_MIN, INT_MAX, V|E|D, "thread_type"},
+{"frame", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_THREAD_FRAME }, INT_MIN, INT_MAX, V|E|D, "thread_type"},
+{"audio_service_type", "audio service type", OFFSET(audio_service_type), AV_OPT_TYPE_INT, {.i64 = AV_AUDIO_SERVICE_TYPE_MAIN }, 0, AV_AUDIO_SERVICE_TYPE_NB-1, A|E, "audio_service_type"},
+{"ma", "Main Audio Service", 0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_MAIN },              INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"ef", "Effects",            0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_EFFECTS },           INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"vi", "Visually Impaired",  0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED }, INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"hi", "Hearing Impaired",   0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED },  INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"di", "Dialogue",           0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_DIALOGUE },          INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"co", "Commentary",         0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_COMMENTARY },        INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"em", "Emergency",          0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_EMERGENCY },         INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"vo", "Voice Over",         0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_VOICE_OVER },        INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"ka", "Karaoke",            0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_KARAOKE },           INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"request_sample_fmt", "sample format audio decoders should prefer", OFFSET(request_sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64=AV_SAMPLE_FMT_NONE}, -1, INT_MAX, A|D, "request_sample_fmt"},
+{"pkt_timebase", NULL, OFFSET(pkt_timebase), AV_OPT_TYPE_RATIONAL, {.dbl = 0 }, 0, INT_MAX, 0},
+{"sub_charenc", "set input text subtitles character encoding", OFFSET(sub_charenc), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, S|D},
+{"sub_charenc_mode", "set input text subtitles character encoding mode", OFFSET(sub_charenc_mode), AV_OPT_TYPE_FLAGS, {.i64 = FF_SUB_CHARENC_MODE_AUTOMATIC}, -1, INT_MAX, S|D, "sub_charenc_mode"},
+{"do_nothing",  NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_CHARENC_MODE_DO_NOTHING},  INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
+{"auto",        NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_CHARENC_MODE_AUTOMATIC},   INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
+{"pre_decoder", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_CHARENC_MODE_PRE_DECODER}, INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
+{"ignore",      NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_CHARENC_MODE_IGNORE},      INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
+#if FF_API_ASS_TIMING
+{"sub_text_format", "set decoded text subtitle format", OFFSET(sub_text_format), AV_OPT_TYPE_INT, {.i64 = FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS}, 0, 1, S|D, "sub_text_format"},
+#else
+{"sub_text_format", "set decoded text subtitle format", OFFSET(sub_text_format), AV_OPT_TYPE_INT, {.i64 = FF_SUB_TEXT_FMT_ASS}, 0, 1, S|D, "sub_text_format"},
+#endif
+{"ass",              NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_TEXT_FMT_ASS},              INT_MIN, INT_MAX, S|D, "sub_text_format"},
+#if FF_API_ASS_TIMING
+{"ass_with_timings", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS}, INT_MIN, INT_MAX, S|D, "sub_text_format"},
+#endif
+{"refcounted_frames", NULL, OFFSET(refcounted_frames), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, A|V|D },
+#if FF_API_SIDEDATA_ONLY_PKT
+{"side_data_only_packets", NULL, OFFSET(side_data_only_packets), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, A|V|E },
+#endif
+{"apply_cropping", NULL, OFFSET(apply_cropping), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, V | D },
+{"skip_alpha", "Skip processing alpha", OFFSET(skip_alpha), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, V|D },
+{"field_order", "Field order", OFFSET(field_order), AV_OPT_TYPE_INT, {.i64 = AV_FIELD_UNKNOWN }, 0, 5, V|D|E, "field_order" },
+{"progressive", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_PROGRESSIVE }, 0, 0, V|D|E, "field_order" },
+{"tt", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_TT }, 0, 0, V|D|E, "field_order" },
+{"bb", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_BB }, 0, 0, V|D|E, "field_order" },
+{"tb", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_TB }, 0, 0, V|D|E, "field_order" },
+{"bt", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_BT }, 0, 0, V|D|E, "field_order" },
+{"dump_separator", "set information dump field separator", OFFSET(dump_separator), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, A|V|S|D|E},
+{"codec_whitelist", "List of decoders that are allowed to be used", OFFSET(codec_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, A|V|S|D },
+{"pixel_format", "set pixel format", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64=AV_PIX_FMT_NONE}, -1, INT_MAX, 0 },
+{"video_size", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str=NULL}, 0, INT_MAX, 0 },
+{"max_pixels", "Maximum number of pixels", OFFSET(max_pixels), AV_OPT_TYPE_INT64, {.i64 = INT_MAX }, 0, INT_MAX, A|V|S|D|E },
+{"hwaccel_flags", NULL, OFFSET(hwaccel_flags), AV_OPT_TYPE_FLAGS, {.i64 = AV_HWACCEL_FLAG_IGNORE_LEVEL }, 0, UINT_MAX, V|D, "hwaccel_flags"},
+{"ignore_level", "ignore level even if the codec level used is unknown or higher than the maximum supported level reported by the hardware driver", 0, AV_OPT_TYPE_CONST, { .i64 = AV_HWACCEL_FLAG_IGNORE_LEVEL }, INT_MIN, INT_MAX, V | D, "hwaccel_flags" },
+{"allow_high_depth", "allow to output YUV pixel formats with a different chroma sampling than 4:2:0 and/or other than 8 bits per component", 0, AV_OPT_TYPE_CONST, {.i64 = AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH }, INT_MIN, INT_MAX, V | D, "hwaccel_flags"},
+{"allow_profile_mismatch", "attempt to decode anyway if HW accelerated decoder's supported profiles do not exactly match the stream", 0, AV_OPT_TYPE_CONST, {.i64 = AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH }, INT_MIN, INT_MAX, V | D, "hwaccel_flags"},
+{"extra_hw_frames", "Number of extra hardware frames to allocate for the user", OFFSET(extra_hw_frames), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, V|D },
+{"discard_damaged_percentage", "Percentage of damaged samples to discard a frame", OFFSET(discard_damaged_percentage), AV_OPT_TYPE_INT, {.i64 = 95 }, 0, 100, V|D },
+{NULL},
+};
+
+#undef A
+#undef V
+#undef S
+#undef E
+#undef D
+#undef DEFAULT
+#undef OFFSET
+
+#endif /* AVCODEC_OPTIONS_TABLE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus.c
new file mode 100644
index 000000000..f74278a7e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus.c
@@ -0,0 +1,900 @@
+/*
+ * Copyright (c) 2012 Andrew D'Addesio
+ * Copyright (c) 2013-2014 Mozilla Corporation
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Opus decoder/parser shared code
+ */
+
+#include <stdint.h>
+
+#include "libavutil/error.h"
+#include "libavutil/ffmath.h"
+
+#include "opus_celt.h"
+#include "opustab.h"
+#include "internal.h"
+#include "vorbis.h"
+
+static const uint16_t opus_frame_duration[32] = {
+    480, 960, 1920, 2880,
+    480, 960, 1920, 2880,
+    480, 960, 1920, 2880,
+    480, 960,
+    480, 960,
+    120, 240,  480,  960,
+    120, 240,  480,  960,
+    120, 240,  480,  960,
+    120, 240,  480,  960,
+};
+
+/**
+ * Read a 1- or 2-byte frame length
+ */
+static inline int xiph_lacing_16bit(const uint8_t **ptr, const uint8_t *end)
+{
+    int val;
+
+    if (*ptr >= end)
+        return AVERROR_INVALIDDATA;
+    val = *(*ptr)++;
+    if (val >= 252) {
+        if (*ptr >= end)
+            return AVERROR_INVALIDDATA;
+        val += 4 * *(*ptr)++;
+    }
+    return val;
+}
+
+/**
+ * Read a multi-byte length (used for code 3 packet padding size)
+ */
+static inline int xiph_lacing_full(const uint8_t **ptr, const uint8_t *end)
+{
+    int val = 0;
+    int next;
+
+    while (1) {
+        if (*ptr >= end || val > INT_MAX - 254)
+            return AVERROR_INVALIDDATA;
+        next = *(*ptr)++;
+        val += next;
+        if (next < 255)
+            break;
+        else
+            val--;
+    }
+    return val;
+}
+
+/**
+ * Parse Opus packet info from raw packet data
+ */
+int ff_opus_parse_packet(OpusPacket *pkt, const uint8_t *buf, int buf_size,
+                         int self_delimiting)
+{
+    const uint8_t *ptr = buf;
+    const uint8_t *end = buf + buf_size;
+    int padding = 0;
+    int frame_bytes, i;
+
+    if (buf_size < 1)
+        goto fail;
+
+    /* TOC byte */
+    i = *ptr++;
+    pkt->code   = (i     ) & 0x3;
+    pkt->stereo = (i >> 2) & 0x1;
+    pkt->config = (i >> 3) & 0x1F;
+
+    /* code 2 and code 3 packets have at least 1 byte after the TOC */
+    if (pkt->code >= 2 && buf_size < 2)
+        goto fail;
+
+    switch (pkt->code) {
+    case 0:
+        /* 1 frame */
+        pkt->frame_count = 1;
+        pkt->vbr         = 0;
+
+        if (self_delimiting) {
+            int len = xiph_lacing_16bit(&ptr, end);
+            if (len < 0 || len > end - ptr)
+                goto fail;
+            end      = ptr + len;
+            buf_size = end - buf;
+        }
+
+        frame_bytes = end - ptr;
+        if (frame_bytes > MAX_FRAME_SIZE)
+            goto fail;
+        pkt->frame_offset[0] = ptr - buf;
+        pkt->frame_size[0]   = frame_bytes;
+        break;
+    case 1:
+        /* 2 frames, equal size */
+        pkt->frame_count = 2;
+        pkt->vbr         = 0;
+
+        if (self_delimiting) {
+            int len = xiph_lacing_16bit(&ptr, end);
+            if (len < 0 || 2 * len > end - ptr)
+                goto fail;
+            end      = ptr + 2 * len;
+            buf_size = end - buf;
+        }
+
+        frame_bytes = end - ptr;
+        if (frame_bytes & 1 || frame_bytes >> 1 > MAX_FRAME_SIZE)
+            goto fail;
+        pkt->frame_offset[0] = ptr - buf;
+        pkt->frame_size[0]   = frame_bytes >> 1;
+        pkt->frame_offset[1] = pkt->frame_offset[0] + pkt->frame_size[0];
+        pkt->frame_size[1]   = frame_bytes >> 1;
+        break;
+    case 2:
+        /* 2 frames, different sizes */
+        pkt->frame_count = 2;
+        pkt->vbr         = 1;
+
+        /* read 1st frame size */
+        frame_bytes = xiph_lacing_16bit(&ptr, end);
+        if (frame_bytes < 0)
+            goto fail;
+
+        if (self_delimiting) {
+            int len = xiph_lacing_16bit(&ptr, end);
+            if (len < 0 || len + frame_bytes > end - ptr)
+                goto fail;
+            end      = ptr + frame_bytes + len;
+            buf_size = end - buf;
+        }
+
+        pkt->frame_offset[0] = ptr - buf;
+        pkt->frame_size[0]   = frame_bytes;
+
+        /* calculate 2nd frame size */
+        frame_bytes = end - ptr - pkt->frame_size[0];
+        if (frame_bytes < 0 || frame_bytes > MAX_FRAME_SIZE)
+            goto fail;
+        pkt->frame_offset[1] = pkt->frame_offset[0] + pkt->frame_size[0];
+        pkt->frame_size[1]   = frame_bytes;
+        break;
+    case 3:
+        /* 1 to 48 frames, can be different sizes */
+        i = *ptr++;
+        pkt->frame_count = (i     ) & 0x3F;
+        padding          = (i >> 6) & 0x01;
+        pkt->vbr         = (i >> 7) & 0x01;
+
+        if (pkt->frame_count == 0 || pkt->frame_count > MAX_FRAMES)
+            goto fail;
+
+        /* read padding size */
+        if (padding) {
+            padding = xiph_lacing_full(&ptr, end);
+            if (padding < 0)
+                goto fail;
+        }
+
+        /* read frame sizes */
+        if (pkt->vbr) {
+            /* for VBR, all frames except the final one have their size coded
+               in the bitstream. the last frame size is implicit. */
+            int total_bytes = 0;
+            for (i = 0; i < pkt->frame_count - 1; i++) {
+                frame_bytes = xiph_lacing_16bit(&ptr, end);
+                if (frame_bytes < 0)
+                    goto fail;
+                pkt->frame_size[i] = frame_bytes;
+                total_bytes += frame_bytes;
+            }
+
+            if (self_delimiting) {
+                int len = xiph_lacing_16bit(&ptr, end);
+                if (len < 0 || len + total_bytes + padding > end - ptr)
+                    goto fail;
+                end      = ptr + total_bytes + len + padding;
+                buf_size = end - buf;
+            }
+
+            frame_bytes = end - ptr - padding;
+            if (total_bytes > frame_bytes)
+                goto fail;
+            pkt->frame_offset[0] = ptr - buf;
+            for (i = 1; i < pkt->frame_count; i++)
+                pkt->frame_offset[i] = pkt->frame_offset[i-1] + pkt->frame_size[i-1];
+            pkt->frame_size[pkt->frame_count-1] = frame_bytes - total_bytes;
+        } else {
+            /* for CBR, the remaining packet bytes are divided evenly between
+               the frames */
+            if (self_delimiting) {
+                frame_bytes = xiph_lacing_16bit(&ptr, end);
+                if (frame_bytes < 0 || pkt->frame_count * frame_bytes + padding > end - ptr)
+                    goto fail;
+                end      = ptr + pkt->frame_count * frame_bytes + padding;
+                buf_size = end - buf;
+            } else {
+                frame_bytes = end - ptr - padding;
+                if (frame_bytes % pkt->frame_count ||
+                    frame_bytes / pkt->frame_count > MAX_FRAME_SIZE)
+                    goto fail;
+                frame_bytes /= pkt->frame_count;
+            }
+
+            pkt->frame_offset[0] = ptr - buf;
+            pkt->frame_size[0]   = frame_bytes;
+            for (i = 1; i < pkt->frame_count; i++) {
+                pkt->frame_offset[i] = pkt->frame_offset[i-1] + pkt->frame_size[i-1];
+                pkt->frame_size[i]   = frame_bytes;
+            }
+        }
+    }
+
+    pkt->packet_size = buf_size;
+    pkt->data_size   = pkt->packet_size - padding;
+
+    /* total packet duration cannot be larger than 120ms */
+    pkt->frame_duration = opus_frame_duration[pkt->config];
+    if (pkt->frame_duration * pkt->frame_count > MAX_PACKET_DUR)
+        goto fail;
+
+    /* set mode and bandwidth */
+    if (pkt->config < 12) {
+        pkt->mode = OPUS_MODE_SILK;
+        pkt->bandwidth = pkt->config >> 2;
+    } else if (pkt->config < 16) {
+        pkt->mode = OPUS_MODE_HYBRID;
+        pkt->bandwidth = OPUS_BANDWIDTH_SUPERWIDEBAND + (pkt->config >= 14);
+    } else {
+        pkt->mode = OPUS_MODE_CELT;
+        pkt->bandwidth = (pkt->config - 16) >> 2;
+        /* skip medium band */
+        if (pkt->bandwidth)
+            pkt->bandwidth++;
+    }
+
+    return 0;
+
+fail:
+    memset(pkt, 0, sizeof(*pkt));
+    return AVERROR_INVALIDDATA;
+}
+
+static int channel_reorder_vorbis(int nb_channels, int channel_idx)
+{
+    return ff_vorbis_channel_layout_offsets[nb_channels - 1][channel_idx];
+}
+
+static int channel_reorder_unknown(int nb_channels, int channel_idx)
+{
+    return channel_idx;
+}
+
+av_cold int ff_opus_parse_extradata(AVCodecContext *avctx,
+                                    OpusContext *s)
+{
+    static const uint8_t default_channel_map[2] = { 0, 1 };
+
+    int (*channel_reorder)(int, int) = channel_reorder_unknown;
+
+    const uint8_t *extradata, *channel_map;
+    int extradata_size;
+    int version, channels, map_type, streams, stereo_streams, i, j;
+    uint64_t layout;
+
+    if (!avctx->extradata) {
+        if (avctx->channels > 2) {
+            av_log(avctx, AV_LOG_ERROR,
+                   "Multichannel configuration without extradata.\n");
+            return AVERROR(EINVAL);
+        }
+        extradata      = opus_default_extradata;
+        extradata_size = sizeof(opus_default_extradata);
+    } else {
+        extradata = avctx->extradata;
+        extradata_size = avctx->extradata_size;
+    }
+
+    if (extradata_size < 19) {
+        av_log(avctx, AV_LOG_ERROR, "Invalid extradata size: %d\n",
+               extradata_size);
+        return AVERROR_INVALIDDATA;
+    }
+
+    version = extradata[8];
+    if (version > 15) {
+        avpriv_request_sample(avctx, "Extradata version %d", version);
+        return AVERROR_PATCHWELCOME;
+    }
+
+    avctx->delay = AV_RL16(extradata + 10);
+    if (avctx->internal)
+        avctx->internal->skip_samples = avctx->delay;
+
+    channels = avctx->extradata ? extradata[9] : (avctx->channels == 1) ? 1 : 2;
+    if (!channels) {
+        av_log(avctx, AV_LOG_ERROR, "Zero channel count specified in the extradata\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    s->gain_i = AV_RL16(extradata + 16);
+    if (s->gain_i)
+        s->gain = ff_exp10(s->gain_i / (20.0 * 256));
+
+    map_type = extradata[18];
+    if (!map_type) {
+        if (channels > 2) {
+            av_log(avctx, AV_LOG_ERROR,
+                   "Channel mapping 0 is only specified for up to 2 channels\n");
+            return AVERROR_INVALIDDATA;
+        }
+        layout         = (channels == 1) ? AV_CH_LAYOUT_MONO : AV_CH_LAYOUT_STEREO;
+        streams        = 1;
+        stereo_streams = channels - 1;
+        channel_map    = default_channel_map;
+    } else if (map_type == 1 || map_type == 2 || map_type == 255) {
+        if (extradata_size < 21 + channels) {
+            av_log(avctx, AV_LOG_ERROR, "Invalid extradata size: %d\n",
+                   extradata_size);
+            return AVERROR_INVALIDDATA;
+        }
+
+        streams        = extradata[19];
+        stereo_streams = extradata[20];
+        if (!streams || stereo_streams > streams ||
+            streams + stereo_streams > 255) {
+            av_log(avctx, AV_LOG_ERROR,
+                   "Invalid stream/stereo stream count: %d/%d\n", streams, stereo_streams);
+            return AVERROR_INVALIDDATA;
+        }
+
+        if (map_type == 1) {
+            if (channels > 8) {
+                av_log(avctx, AV_LOG_ERROR,
+                       "Channel mapping 1 is only specified for up to 8 channels\n");
+                return AVERROR_INVALIDDATA;
+            }
+            layout = ff_vorbis_channel_layouts[channels - 1];
+            channel_reorder = channel_reorder_vorbis;
+        } else if (map_type == 2) {
+            int ambisonic_order = ff_sqrt(channels) - 1;
+            if (channels != ((ambisonic_order + 1) * (ambisonic_order + 1)) &&
+                channels != ((ambisonic_order + 1) * (ambisonic_order + 1) + 2)) {
+                av_log(avctx, AV_LOG_ERROR,
+                       "Channel mapping 2 is only specified for channel counts"
+                       " which can be written as (n + 1)^2 or (n + 1)^2 + 2"
+                       " for nonnegative integer n\n");
+                return AVERROR_INVALIDDATA;
+            }
+            if (channels > 227) {
+                av_log(avctx, AV_LOG_ERROR, "Too many channels\n");
+                return AVERROR_INVALIDDATA;
+            }
+            layout = 0;
+        } else
+            layout = 0;
+
+        channel_map = extradata + 21;
+    } else {
+        avpriv_request_sample(avctx, "Mapping type %d", map_type);
+        return AVERROR_PATCHWELCOME;
+    }
+
+    s->channel_maps = av_mallocz_array(channels, sizeof(*s->channel_maps));
+    if (!s->channel_maps)
+        return AVERROR(ENOMEM);
+
+    for (i = 0; i < channels; i++) {
+        ChannelMap *map = &s->channel_maps[i];
+        uint8_t     idx = channel_map[channel_reorder(channels, i)];
+
+        if (idx == 255) {
+            map->silence = 1;
+            continue;
+        } else if (idx >= streams + stereo_streams) {
+            av_log(avctx, AV_LOG_ERROR,
+                   "Invalid channel map for output channel %d: %d\n", i, idx);
+            av_freep(&s->channel_maps);
+            return AVERROR_INVALIDDATA;
+        }
+
+        /* check that we did not see this index yet */
+        map->copy = 0;
+        for (j = 0; j < i; j++)
+            if (channel_map[channel_reorder(channels, j)] == idx) {
+                map->copy     = 1;
+                map->copy_idx = j;
+                break;
+            }
+
+        if (idx < 2 * stereo_streams) {
+            map->stream_idx  = idx / 2;
+            map->channel_idx = idx & 1;
+        } else {
+            map->stream_idx  = idx - stereo_streams;
+            map->channel_idx = 0;
+        }
+    }
+
+    avctx->channels       = channels;
+    avctx->channel_layout = layout;
+    s->nb_streams         = streams;
+    s->nb_stereo_streams  = stereo_streams;
+
+    return 0;
+}
+
+void ff_celt_quant_bands(CeltFrame *f, OpusRangeCoder *rc)
+{
+    float lowband_scratch[8 * 22];
+    float norm1[2 * 8 * 100];
+    float *norm2 = norm1 + 8 * 100;
+
+    int totalbits = (f->framebits << 3) - f->anticollapse_needed;
+
+    int update_lowband = 1;
+    int lowband_offset = 0;
+
+    int i, j;
+
+    for (i = f->start_band; i < f->end_band; i++) {
+        uint32_t cm[2] = { (1 << f->blocks) - 1, (1 << f->blocks) - 1 };
+        int band_offset = ff_celt_freq_bands[i] << f->size;
+        int band_size   = ff_celt_freq_range[i] << f->size;
+        float *X = f->block[0].coeffs + band_offset;
+        float *Y = (f->channels == 2) ? f->block[1].coeffs + band_offset : NULL;
+        float *norm_loc1, *norm_loc2;
+
+        int consumed = opus_rc_tell_frac(rc);
+        int effective_lowband = -1;
+        int b = 0;
+
+        /* Compute how many bits we want to allocate to this band */
+        if (i != f->start_band)
+            f->remaining -= consumed;
+        f->remaining2 = totalbits - consumed - 1;
+        if (i <= f->coded_bands - 1) {
+            int curr_balance = f->remaining / FFMIN(3, f->coded_bands-i);
+            b = av_clip_uintp2(FFMIN(f->remaining2 + 1, f->pulses[i] + curr_balance), 14);
+        }
+
+        if ((ff_celt_freq_bands[i] - ff_celt_freq_range[i] >= ff_celt_freq_bands[f->start_band] ||
+            i == f->start_band + 1) && (update_lowband || lowband_offset == 0))
+            lowband_offset = i;
+
+        if (i == f->start_band + 1) {
+            /* Special Hybrid Folding (RFC 8251 section 9). Copy the first band into
+            the second to ensure the second band never has to use the LCG. */
+            int count = (ff_celt_freq_range[i] - ff_celt_freq_range[i-1]) << f->size;
+
+            memcpy(&norm1[band_offset], &norm1[band_offset - count], count * sizeof(float));
+
+            if (f->channels == 2)
+                memcpy(&norm2[band_offset], &norm2[band_offset - count], count * sizeof(float));
+        }
+
+        /* Get a conservative estimate of the collapse_mask's for the bands we're
+           going to be folding from. */
+        if (lowband_offset != 0 && (f->spread != CELT_SPREAD_AGGRESSIVE ||
+                                    f->blocks > 1 || f->tf_change[i] < 0)) {
+            int foldstart, foldend;
+
+            /* This ensures we never repeat spectral content within one band */
+            effective_lowband = FFMAX(ff_celt_freq_bands[f->start_band],
+                                      ff_celt_freq_bands[lowband_offset] - ff_celt_freq_range[i]);
+            foldstart = lowband_offset;
+            while (ff_celt_freq_bands[--foldstart] > effective_lowband);
+            foldend = lowband_offset - 1;
+            while (++foldend < i && ff_celt_freq_bands[foldend] < effective_lowband + ff_celt_freq_range[i]);
+
+            cm[0] = cm[1] = 0;
+            for (j = foldstart; j < foldend; j++) {
+                cm[0] |= f->block[0].collapse_masks[j];
+                cm[1] |= f->block[f->channels - 1].collapse_masks[j];
+            }
+        }
+
+        if (f->dual_stereo && i == f->intensity_stereo) {
+            /* Switch off dual stereo to do intensity */
+            f->dual_stereo = 0;
+            for (j = ff_celt_freq_bands[f->start_band] << f->size; j < band_offset; j++)
+                norm1[j] = (norm1[j] + norm2[j]) / 2;
+        }
+
+        norm_loc1 = effective_lowband != -1 ? norm1 + (effective_lowband << f->size) : NULL;
+        norm_loc2 = effective_lowband != -1 ? norm2 + (effective_lowband << f->size) : NULL;
+
+        if (f->dual_stereo) {
+            cm[0] = f->pvq->quant_band(f->pvq, f, rc, i, X, NULL, band_size, b >> 1,
+                                       f->blocks, norm_loc1, f->size,
+                                       norm1 + band_offset, 0, 1.0f,
+                                       lowband_scratch, cm[0]);
+
+            cm[1] = f->pvq->quant_band(f->pvq, f, rc, i, Y, NULL, band_size, b >> 1,
+                                       f->blocks, norm_loc2, f->size,
+                                       norm2 + band_offset, 0, 1.0f,
+                                       lowband_scratch, cm[1]);
+        } else {
+            cm[0] = f->pvq->quant_band(f->pvq, f, rc, i, X,    Y, band_size, b >> 0,
+                                       f->blocks, norm_loc1, f->size,
+                                       norm1 + band_offset, 0, 1.0f,
+                                       lowband_scratch, cm[0] | cm[1]);
+            cm[1] = cm[0];
+        }
+
+        f->block[0].collapse_masks[i]               = (uint8_t)cm[0];
+        f->block[f->channels - 1].collapse_masks[i] = (uint8_t)cm[1];
+        f->remaining += f->pulses[i] + consumed;
+
+        /* Update the folding position only as long as we have 1 bit/sample depth */
+        update_lowband = (b > band_size << 3);
+    }
+}
+
+#define NORMC(bits) ((bits) << (f->channels - 1) << f->size >> 2)
+
+void ff_celt_bitalloc(CeltFrame *f, OpusRangeCoder *rc, int encode)
+{
+    int i, j, low, high, total, done, bandbits, remaining, tbits_8ths;
+    int skip_startband      = f->start_band;
+    int skip_bit            = 0;
+    int intensitystereo_bit = 0;
+    int dualstereo_bit      = 0;
+    int dynalloc            = 6;
+    int extrabits           = 0;
+
+    int boost[CELT_MAX_BANDS] = { 0 };
+    int trim_offset[CELT_MAX_BANDS];
+    int threshold[CELT_MAX_BANDS];
+    int bits1[CELT_MAX_BANDS];
+    int bits2[CELT_MAX_BANDS];
+
+    /* Spread */
+    if (opus_rc_tell(rc) + 4 <= f->framebits) {
+        if (encode)
+            ff_opus_rc_enc_cdf(rc, f->spread, ff_celt_model_spread);
+        else
+            f->spread = ff_opus_rc_dec_cdf(rc, ff_celt_model_spread);
+    } else {
+        f->spread = CELT_SPREAD_NORMAL;
+    }
+
+    /* Initialize static allocation caps */
+    for (i = 0; i < CELT_MAX_BANDS; i++)
+        f->caps[i] = NORMC((ff_celt_static_caps[f->size][f->channels - 1][i] + 64) * ff_celt_freq_range[i]);
+
+    /* Band boosts */
+    tbits_8ths = f->framebits << 3;
+    for (i = f->start_band; i < f->end_band; i++) {
+        int quanta = ff_celt_freq_range[i] << (f->channels - 1) << f->size;
+        int b_dynalloc = dynalloc;
+        int boost_amount = f->alloc_boost[i];
+        quanta = FFMIN(quanta << 3, FFMAX(6 << 3, quanta));
+
+        while (opus_rc_tell_frac(rc) + (b_dynalloc << 3) < tbits_8ths && boost[i] < f->caps[i]) {
+            int is_boost;
+            if (encode) {
+                is_boost = boost_amount--;
+                ff_opus_rc_enc_log(rc, is_boost, b_dynalloc);
+            } else {
+                is_boost = ff_opus_rc_dec_log(rc, b_dynalloc);
+            }
+
+            if (!is_boost)
+                break;
+
+            boost[i]   += quanta;
+            tbits_8ths -= quanta;
+
+            b_dynalloc = 1;
+        }
+
+        if (boost[i])
+            dynalloc = FFMAX(dynalloc - 1, 2);
+    }
+
+    /* Allocation trim */
+    if (opus_rc_tell_frac(rc) + (6 << 3) <= tbits_8ths)
+        if (encode)
+            ff_opus_rc_enc_cdf(rc, f->alloc_trim, ff_celt_model_alloc_trim);
+        else
+            f->alloc_trim = ff_opus_rc_dec_cdf(rc, ff_celt_model_alloc_trim);
+
+    /* Anti-collapse bit reservation */
+    tbits_8ths = (f->framebits << 3) - opus_rc_tell_frac(rc) - 1;
+    f->anticollapse_needed = 0;
+    if (f->transient && f->size >= 2 && tbits_8ths >= ((f->size + 2) << 3))
+        f->anticollapse_needed = 1 << 3;
+    tbits_8ths -= f->anticollapse_needed;
+
+    /* Band skip bit reservation */
+    if (tbits_8ths >= 1 << 3)
+        skip_bit = 1 << 3;
+    tbits_8ths -= skip_bit;
+
+    /* Intensity/dual stereo bit reservation */
+    if (f->channels == 2) {
+        intensitystereo_bit = ff_celt_log2_frac[f->end_band - f->start_band];
+        if (intensitystereo_bit <= tbits_8ths) {
+            tbits_8ths -= intensitystereo_bit;
+            if (tbits_8ths >= 1 << 3) {
+                dualstereo_bit = 1 << 3;
+                tbits_8ths -= 1 << 3;
+            }
+        } else {
+            intensitystereo_bit = 0;
+        }
+    }
+
+    /* Trim offsets */
+    for (i = f->start_band; i < f->end_band; i++) {
+        int trim     = f->alloc_trim - 5 - f->size;
+        int band     = ff_celt_freq_range[i] * (f->end_band - i - 1);
+        int duration = f->size + 3;
+        int scale    = duration + f->channels - 1;
+
+        /* PVQ minimum allocation threshold, below this value the band is
+         * skipped */
+        threshold[i] = FFMAX(3 * ff_celt_freq_range[i] << duration >> 4,
+                             f->channels << 3);
+
+        trim_offset[i] = trim * (band << scale) >> 6;
+
+        if (ff_celt_freq_range[i] << f->size == 1)
+            trim_offset[i] -= f->channels << 3;
+    }
+
+    /* Bisection */
+    low  = 1;
+    high = CELT_VECTORS - 1;
+    while (low <= high) {
+        int center = (low + high) >> 1;
+        done = total = 0;
+
+        for (i = f->end_band - 1; i >= f->start_band; i--) {
+            bandbits = NORMC(ff_celt_freq_range[i] * ff_celt_static_alloc[center][i]);
+
+            if (bandbits)
+                bandbits = FFMAX(bandbits + trim_offset[i], 0);
+            bandbits += boost[i];
+
+            if (bandbits >= threshold[i] || done) {
+                done = 1;
+                total += FFMIN(bandbits, f->caps[i]);
+            } else if (bandbits >= f->channels << 3) {
+                total += f->channels << 3;
+            }
+        }
+
+        if (total > tbits_8ths)
+            high = center - 1;
+        else
+            low = center + 1;
+    }
+    high = low--;
+
+    /* Bisection */
+    for (i = f->start_band; i < f->end_band; i++) {
+        bits1[i] = NORMC(ff_celt_freq_range[i] * ff_celt_static_alloc[low][i]);
+        bits2[i] = high >= CELT_VECTORS ? f->caps[i] :
+                   NORMC(ff_celt_freq_range[i] * ff_celt_static_alloc[high][i]);
+
+        if (bits1[i])
+            bits1[i] = FFMAX(bits1[i] + trim_offset[i], 0);
+        if (bits2[i])
+            bits2[i] = FFMAX(bits2[i] + trim_offset[i], 0);
+
+        if (low)
+            bits1[i] += boost[i];
+        bits2[i] += boost[i];
+
+        if (boost[i])
+            skip_startband = i;
+        bits2[i] = FFMAX(bits2[i] - bits1[i], 0);
+    }
+
+    /* Bisection */
+    low  = 0;
+    high = 1 << CELT_ALLOC_STEPS;
+    for (i = 0; i < CELT_ALLOC_STEPS; i++) {
+        int center = (low + high) >> 1;
+        done = total = 0;
+
+        for (j = f->end_band - 1; j >= f->start_band; j--) {
+            bandbits = bits1[j] + (center * bits2[j] >> CELT_ALLOC_STEPS);
+
+            if (bandbits >= threshold[j] || done) {
+                done = 1;
+                total += FFMIN(bandbits, f->caps[j]);
+            } else if (bandbits >= f->channels << 3)
+                total += f->channels << 3;
+        }
+        if (total > tbits_8ths)
+            high = center;
+        else
+            low = center;
+    }
+
+    /* Bisection */
+    done = total = 0;
+    for (i = f->end_band - 1; i >= f->start_band; i--) {
+        bandbits = bits1[i] + (low * bits2[i] >> CELT_ALLOC_STEPS);
+
+        if (bandbits >= threshold[i] || done)
+            done = 1;
+        else
+            bandbits = (bandbits >= f->channels << 3) ?
+            f->channels << 3 : 0;
+
+        bandbits     = FFMIN(bandbits, f->caps[i]);
+        f->pulses[i] = bandbits;
+        total      += bandbits;
+    }
+
+    /* Band skipping */
+    for (f->coded_bands = f->end_band; ; f->coded_bands--) {
+        int allocation;
+        j = f->coded_bands - 1;
+
+        if (j == skip_startband) {
+            /* all remaining bands are not skipped */
+            tbits_8ths += skip_bit;
+            break;
+        }
+
+        /* determine the number of bits available for coding "do not skip" markers */
+        remaining   = tbits_8ths - total;
+        bandbits    = remaining / (ff_celt_freq_bands[j+1] - ff_celt_freq_bands[f->start_band]);
+        remaining  -= bandbits  * (ff_celt_freq_bands[j+1] - ff_celt_freq_bands[f->start_band]);
+        allocation  = f->pulses[j] + bandbits * ff_celt_freq_range[j];
+        allocation += FFMAX(remaining - (ff_celt_freq_bands[j] - ff_celt_freq_bands[f->start_band]), 0);
+
+        /* a "do not skip" marker is only coded if the allocation is
+         * above the chosen threshold */
+        if (allocation >= FFMAX(threshold[j], (f->channels + 1) << 3)) {
+            int do_not_skip;
+            if (encode) {
+                do_not_skip = f->coded_bands <= f->skip_band_floor;
+                ff_opus_rc_enc_log(rc, do_not_skip, 1);
+            } else {
+                do_not_skip = ff_opus_rc_dec_log(rc, 1);
+            }
+
+            if (do_not_skip)
+                break;
+
+            total      += 1 << 3;
+            allocation -= 1 << 3;
+        }
+
+        /* the band is skipped, so reclaim its bits */
+        total -= f->pulses[j];
+        if (intensitystereo_bit) {
+            total -= intensitystereo_bit;
+            intensitystereo_bit = ff_celt_log2_frac[j - f->start_band];
+            total += intensitystereo_bit;
+        }
+
+        total += f->pulses[j] = (allocation >= f->channels << 3) ? f->channels << 3 : 0;
+    }
+
+    /* IS start band */
+    if (encode) {
+        if (intensitystereo_bit) {
+            f->intensity_stereo = FFMIN(f->intensity_stereo, f->coded_bands);
+            ff_opus_rc_enc_uint(rc, f->intensity_stereo, f->coded_bands + 1 - f->start_band);
+        }
+    } else {
+        f->intensity_stereo = f->dual_stereo = 0;
+        if (intensitystereo_bit)
+            f->intensity_stereo = f->start_band + ff_opus_rc_dec_uint(rc, f->coded_bands + 1 - f->start_band);
+    }
+
+    /* DS flag */
+    if (f->intensity_stereo <= f->start_band)
+        tbits_8ths += dualstereo_bit; /* no intensity stereo means no dual stereo */
+    else if (dualstereo_bit)
+        if (encode)
+            ff_opus_rc_enc_log(rc, f->dual_stereo, 1);
+        else
+            f->dual_stereo = ff_opus_rc_dec_log(rc, 1);
+
+    /* Supply the remaining bits in this frame to lower bands */
+    remaining = tbits_8ths - total;
+    bandbits  = remaining / (ff_celt_freq_bands[f->coded_bands] - ff_celt_freq_bands[f->start_band]);
+    remaining -= bandbits * (ff_celt_freq_bands[f->coded_bands] - ff_celt_freq_bands[f->start_band]);
+    for (i = f->start_band; i < f->coded_bands; i++) {
+        const int bits = FFMIN(remaining, ff_celt_freq_range[i]);
+        f->pulses[i] += bits + bandbits * ff_celt_freq_range[i];
+        remaining    -= bits;
+    }
+
+    /* Finally determine the allocation */
+    for (i = f->start_band; i < f->coded_bands; i++) {
+        int N = ff_celt_freq_range[i] << f->size;
+        int prev_extra = extrabits;
+        f->pulses[i] += extrabits;
+
+        if (N > 1) {
+            int dof;        /* degrees of freedom */
+            int temp;       /* dof * channels * log(dof) */
+            int fine_bits;
+            int max_bits;
+            int offset;     /* fine energy quantization offset, i.e.
+                             * extra bits assigned over the standard
+                             * totalbits/dof */
+
+            extrabits = FFMAX(f->pulses[i] - f->caps[i], 0);
+            f->pulses[i] -= extrabits;
+
+            /* intensity stereo makes use of an extra degree of freedom */
+            dof = N * f->channels + (f->channels == 2 && N > 2 && !f->dual_stereo && i < f->intensity_stereo);
+            temp = dof * (ff_celt_log_freq_range[i] + (f->size << 3));
+            offset = (temp >> 1) - dof * CELT_FINE_OFFSET;
+            if (N == 2) /* dof=2 is the only case that doesn't fit the model */
+                offset += dof << 1;
+
+            /* grant an additional bias for the first and second pulses */
+            if (f->pulses[i] + offset < 2 * (dof << 3))
+                offset += temp >> 2;
+            else if (f->pulses[i] + offset < 3 * (dof << 3))
+                offset += temp >> 3;
+
+            fine_bits = (f->pulses[i] + offset + (dof << 2)) / (dof << 3);
+            max_bits  = FFMIN((f->pulses[i] >> 3) >> (f->channels - 1), CELT_MAX_FINE_BITS);
+            max_bits  = FFMAX(max_bits, 0);
+            f->fine_bits[i] = av_clip(fine_bits, 0, max_bits);
+
+            /* If fine_bits was rounded down or capped,
+             * give priority for the final fine energy pass */
+            f->fine_priority[i] = (f->fine_bits[i] * (dof << 3) >= f->pulses[i] + offset);
+
+            /* the remaining bits are assigned to PVQ */
+            f->pulses[i] -= f->fine_bits[i] << (f->channels - 1) << 3;
+        } else {
+            /* all bits go to fine energy except for the sign bit */
+            extrabits = FFMAX(f->pulses[i] - (f->channels << 3), 0);
+            f->pulses[i] -= extrabits;
+            f->fine_bits[i] = 0;
+            f->fine_priority[i] = 1;
+        }
+
+        /* hand back a limited number of extra fine energy bits to this band */
+        if (extrabits > 0) {
+            int fineextra = FFMIN(extrabits >> (f->channels + 2),
+                                  CELT_MAX_FINE_BITS - f->fine_bits[i]);
+            f->fine_bits[i] += fineextra;
+
+            fineextra <<= f->channels + 2;
+            f->fine_priority[i] = (fineextra >= extrabits - prev_extra);
+            extrabits -= fineextra;
+        }
+    }
+    f->remaining = extrabits;
+
+    /* skipped bands dedicate all of their bits for fine energy */
+    for (; i < f->end_band; i++) {
+        f->fine_bits[i]     = f->pulses[i] >> (f->channels - 1) >> 3;
+        f->pulses[i]        = 0;
+        f->fine_priority[i] = f->fine_bits[i] < 1;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus.h
new file mode 100644
index 000000000..63ecd0aff
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus.h
@@ -0,0 +1,200 @@
+/*
+ * Opus decoder/demuxer common functions
+ * Copyright (c) 2012 Andrew D'Addesio
+ * Copyright (c) 2013-2014 Mozilla Corporation
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_OPUS_H
+#define AVCODEC_OPUS_H
+
+#include <stdint.h>
+
+#include "libavutil/audio_fifo.h"
+#include "libavutil/float_dsp.h"
+#include "libavutil/frame.h"
+
+#include "libswresample/swresample.h"
+
+#include "avcodec.h"
+#include "opus_rc.h"
+
+#define MAX_FRAME_SIZE               1275
+#define MAX_FRAMES                   48
+#define MAX_PACKET_DUR               5760
+
+#define CELT_SHORT_BLOCKSIZE         120
+#define CELT_OVERLAP                 CELT_SHORT_BLOCKSIZE
+#define CELT_MAX_LOG_BLOCKS          3
+#define CELT_MAX_FRAME_SIZE          (CELT_SHORT_BLOCKSIZE * (1 << CELT_MAX_LOG_BLOCKS))
+#define CELT_MAX_BANDS               21
+
+#define SILK_HISTORY                 322
+#define SILK_MAX_LPC                 16
+
+#define ROUND_MULL(a,b,s) (((MUL64(a, b) >> ((s) - 1)) + 1) >> 1)
+#define ROUND_MUL16(a,b)  ((MUL16(a, b) + 16384) >> 15)
+
+#define OPUS_TS_HEADER     0x7FE0        // 0x3ff (11 bits)
+#define OPUS_TS_MASK       0xFFE0        // top 11 bits
+
+static const uint8_t opus_default_extradata[30] = {
+    'O', 'p', 'u', 's', 'H', 'e', 'a', 'd',
+    1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+};
+
+enum OpusMode {
+    OPUS_MODE_SILK,
+    OPUS_MODE_HYBRID,
+    OPUS_MODE_CELT,
+
+    OPUS_MODE_NB
+};
+
+enum OpusBandwidth {
+    OPUS_BANDWIDTH_NARROWBAND,
+    OPUS_BANDWIDTH_MEDIUMBAND,
+    OPUS_BANDWIDTH_WIDEBAND,
+    OPUS_BANDWIDTH_SUPERWIDEBAND,
+    OPUS_BANDWIDTH_FULLBAND,
+
+    OPUS_BANDWITH_NB
+};
+
+typedef struct SilkContext SilkContext;
+
+typedef struct CeltFrame CeltFrame;
+
+typedef struct OpusPacket {
+    int packet_size;                /**< packet size */
+    int data_size;                  /**< size of the useful data -- packet size - padding */
+    int code;                       /**< packet code: specifies the frame layout */
+    int stereo;                     /**< whether this packet is mono or stereo */
+    int vbr;                        /**< vbr flag */
+    int config;                     /**< configuration: tells the audio mode,
+                                     **                bandwidth, and frame duration */
+    int frame_count;                /**< frame count */
+    int frame_offset[MAX_FRAMES];   /**< frame offsets */
+    int frame_size[MAX_FRAMES];     /**< frame sizes */
+    int frame_duration;             /**< frame duration, in samples @ 48kHz */
+    enum OpusMode mode;             /**< mode */
+    enum OpusBandwidth bandwidth;   /**< bandwidth */
+} OpusPacket;
+
+typedef struct OpusStreamContext {
+    AVCodecContext *avctx;
+    int output_channels;
+
+    OpusRangeCoder rc;
+    OpusRangeCoder redundancy_rc;
+    SilkContext *silk;
+    CeltFrame *celt;
+    AVFloatDSPContext *fdsp;
+
+    float silk_buf[2][960];
+    float *silk_output[2];
+    DECLARE_ALIGNED(32, float, celt_buf)[2][960];
+    float *celt_output[2];
+
+    DECLARE_ALIGNED(32, float, redundancy_buf)[2][960];
+    float *redundancy_output[2];
+
+    /* data buffers for the final output data */
+    float *out[2];
+    int out_size;
+
+    float *out_dummy;
+    int    out_dummy_allocated_size;
+
+    SwrContext *swr;
+    AVAudioFifo *celt_delay;
+    int silk_samplerate;
+    /* number of samples we still want to get from the resampler */
+    int delayed_samples;
+
+    OpusPacket packet;
+
+    int redundancy_idx;
+} OpusStreamContext;
+
+// a mapping between an opus stream and an output channel
+typedef struct ChannelMap {
+    int stream_idx;
+    int channel_idx;
+
+    // when a single decoded channel is mapped to multiple output channels, we
+    // write to the first output directly and copy from it to the others
+    // this field is set to 1 for those copied output channels
+    int copy;
+    // this is the index of the output channel to copy from
+    int copy_idx;
+
+    // this channel is silent
+    int silence;
+} ChannelMap;
+
+typedef struct OpusContext {
+    AVClass *av_class;
+    OpusStreamContext *streams;
+    int apply_phase_inv;
+
+    /* current output buffers for each streams */
+    float **out;
+    int   *out_size;
+    /* Buffers for synchronizing the streams when they have different
+     * resampling delays */
+    AVAudioFifo **sync_buffers;
+    /* number of decoded samples for each stream */
+    int         *decoded_samples;
+
+    int             nb_streams;
+    int      nb_stereo_streams;
+
+    AVFloatDSPContext *fdsp;
+    int16_t gain_i;
+    float   gain;
+
+    ChannelMap *channel_maps;
+} OpusContext;
+
+int ff_opus_parse_packet(OpusPacket *pkt, const uint8_t *buf, int buf_size,
+                         int self_delimited);
+
+int ff_opus_parse_extradata(AVCodecContext *avctx, OpusContext *s);
+
+int ff_silk_init(AVCodecContext *avctx, SilkContext **ps, int output_channels);
+void ff_silk_free(SilkContext **ps);
+void ff_silk_flush(SilkContext *s);
+
+/**
+ * Decode the LP layer of one Opus frame (which may correspond to several SILK
+ * frames).
+ */
+int ff_silk_decode_superframe(SilkContext *s, OpusRangeCoder *rc,
+                              float *output[2],
+                              enum OpusBandwidth bandwidth, int coded_channels,
+                              int duration_ms);
+
+/* Encode or decode CELT bands */
+void ff_celt_quant_bands(CeltFrame *f, OpusRangeCoder *rc);
+
+/* Encode or decode CELT bitallocation */
+void ff_celt_bitalloc(CeltFrame *f, OpusRangeCoder *rc, int encode);
+
+#endif /* AVCODEC_OPUS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_celt.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_celt.c
new file mode 100644
index 000000000..4655172b0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_celt.c
@@ -0,0 +1,576 @@
+/*
+ * Copyright (c) 2012 Andrew D'Addesio
+ * Copyright (c) 2013-2014 Mozilla Corporation
+ * Copyright (c) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Opus CELT decoder
+ */
+
+#include "opus_celt.h"
+#include "opustab.h"
+#include "opus_pvq.h"
+
+/* Use the 2D z-transform to apply prediction in both the time domain (alpha)
+ * and the frequency domain (beta) */
+static void celt_decode_coarse_energy(CeltFrame *f, OpusRangeCoder *rc)
+{
+    int i, j;
+    float prev[2] = { 0 };
+    float alpha = ff_celt_alpha_coef[f->size];
+    float beta  = ff_celt_beta_coef[f->size];
+    const uint8_t *model = ff_celt_coarse_energy_dist[f->size][0];
+
+    /* intra frame */
+    if (opus_rc_tell(rc) + 3 <= f->framebits && ff_opus_rc_dec_log(rc, 3)) {
+        alpha = 0.0f;
+        beta  = 1.0f - (4915.0f/32768.0f);
+        model = ff_celt_coarse_energy_dist[f->size][1];
+    }
+
+    for (i = 0; i < CELT_MAX_BANDS; i++) {
+        for (j = 0; j < f->channels; j++) {
+            CeltBlock *block = &f->block[j];
+            float value;
+            int available;
+
+            if (i < f->start_band || i >= f->end_band) {
+                block->energy[i] = 0.0;
+                continue;
+            }
+
+            available = f->framebits - opus_rc_tell(rc);
+            if (available >= 15) {
+                /* decode using a Laplace distribution */
+                int k = FFMIN(i, 20) << 1;
+                value = ff_opus_rc_dec_laplace(rc, model[k] << 7, model[k+1] << 6);
+            } else if (available >= 2) {
+                int x = ff_opus_rc_dec_cdf(rc, ff_celt_model_energy_small);
+                value = (x>>1) ^ -(x&1);
+            } else if (available >= 1) {
+                value = -(float)ff_opus_rc_dec_log(rc, 1);
+            } else value = -1;
+
+            block->energy[i] = FFMAX(-9.0f, block->energy[i]) * alpha + prev[j] + value;
+            prev[j] += beta * value;
+        }
+    }
+}
+
+static void celt_decode_fine_energy(CeltFrame *f, OpusRangeCoder *rc)
+{
+    int i;
+    for (i = f->start_band; i < f->end_band; i++) {
+        int j;
+        if (!f->fine_bits[i])
+            continue;
+
+        for (j = 0; j < f->channels; j++) {
+            CeltBlock *block = &f->block[j];
+            int q2;
+            float offset;
+            q2 = ff_opus_rc_get_raw(rc, f->fine_bits[i]);
+            offset = (q2 + 0.5f) * (1 << (14 - f->fine_bits[i])) / 16384.0f - 0.5f;
+            block->energy[i] += offset;
+        }
+    }
+}
+
+static void celt_decode_final_energy(CeltFrame *f, OpusRangeCoder *rc)
+{
+    int priority, i, j;
+    int bits_left = f->framebits - opus_rc_tell(rc);
+
+    for (priority = 0; priority < 2; priority++) {
+        for (i = f->start_band; i < f->end_band && bits_left >= f->channels; i++) {
+            if (f->fine_priority[i] != priority || f->fine_bits[i] >= CELT_MAX_FINE_BITS)
+                continue;
+
+            for (j = 0; j < f->channels; j++) {
+                int q2;
+                float offset;
+                q2 = ff_opus_rc_get_raw(rc, 1);
+                offset = (q2 - 0.5f) * (1 << (14 - f->fine_bits[i] - 1)) / 16384.0f;
+                f->block[j].energy[i] += offset;
+                bits_left--;
+            }
+        }
+    }
+}
+
+static void celt_decode_tf_changes(CeltFrame *f, OpusRangeCoder *rc)
+{
+    int i, diff = 0, tf_select = 0, tf_changed = 0, tf_select_bit;
+    int consumed, bits = f->transient ? 2 : 4;
+
+    consumed = opus_rc_tell(rc);
+    tf_select_bit = (f->size != 0 && consumed+bits+1 <= f->framebits);
+
+    for (i = f->start_band; i < f->end_band; i++) {
+        if (consumed+bits+tf_select_bit <= f->framebits) {
+            diff ^= ff_opus_rc_dec_log(rc, bits);
+            consumed = opus_rc_tell(rc);
+            tf_changed |= diff;
+        }
+        f->tf_change[i] = diff;
+        bits = f->transient ? 4 : 5;
+    }
+
+    if (tf_select_bit && ff_celt_tf_select[f->size][f->transient][0][tf_changed] !=
+                         ff_celt_tf_select[f->size][f->transient][1][tf_changed])
+        tf_select = ff_opus_rc_dec_log(rc, 1);
+
+    for (i = f->start_band; i < f->end_band; i++) {
+        f->tf_change[i] = ff_celt_tf_select[f->size][f->transient][tf_select][f->tf_change[i]];
+    }
+}
+
+static void celt_denormalize(CeltFrame *f, CeltBlock *block, float *data)
+{
+    int i, j;
+
+    for (i = f->start_band; i < f->end_band; i++) {
+        float *dst = data + (ff_celt_freq_bands[i] << f->size);
+        float log_norm = block->energy[i] + ff_celt_mean_energy[i];
+        float norm = exp2f(FFMIN(log_norm, 32.0f));
+
+        for (j = 0; j < ff_celt_freq_range[i] << f->size; j++)
+            dst[j] *= norm;
+    }
+}
+
+static void celt_postfilter_apply_transition(CeltBlock *block, float *data)
+{
+    const int T0 = block->pf_period_old;
+    const int T1 = block->pf_period;
+
+    float g00, g01, g02;
+    float g10, g11, g12;
+
+    float x0, x1, x2, x3, x4;
+
+    int i;
+
+    if (block->pf_gains[0]     == 0.0 &&
+        block->pf_gains_old[0] == 0.0)
+        return;
+
+    g00 = block->pf_gains_old[0];
+    g01 = block->pf_gains_old[1];
+    g02 = block->pf_gains_old[2];
+    g10 = block->pf_gains[0];
+    g11 = block->pf_gains[1];
+    g12 = block->pf_gains[2];
+
+    x1 = data[-T1 + 1];
+    x2 = data[-T1];
+    x3 = data[-T1 - 1];
+    x4 = data[-T1 - 2];
+
+    for (i = 0; i < CELT_OVERLAP; i++) {
+        float w = ff_celt_window2[i];
+        x0 = data[i - T1 + 2];
+
+        data[i] +=  (1.0 - w) * g00 * data[i - T0]                          +
+                    (1.0 - w) * g01 * (data[i - T0 - 1] + data[i - T0 + 1]) +
+                    (1.0 - w) * g02 * (data[i - T0 - 2] + data[i - T0 + 2]) +
+                    w         * g10 * x2                                    +
+                    w         * g11 * (x1 + x3)                             +
+                    w         * g12 * (x0 + x4);
+        x4 = x3;
+        x3 = x2;
+        x2 = x1;
+        x1 = x0;
+    }
+}
+
+static void celt_postfilter(CeltFrame *f, CeltBlock *block)
+{
+    int len = f->blocksize * f->blocks;
+    const int filter_len = len - 2 * CELT_OVERLAP;
+
+    celt_postfilter_apply_transition(block, block->buf + 1024);
+
+    block->pf_period_old = block->pf_period;
+    memcpy(block->pf_gains_old, block->pf_gains, sizeof(block->pf_gains));
+
+    block->pf_period = block->pf_period_new;
+    memcpy(block->pf_gains, block->pf_gains_new, sizeof(block->pf_gains));
+
+    if (len > CELT_OVERLAP) {
+        celt_postfilter_apply_transition(block, block->buf + 1024 + CELT_OVERLAP);
+
+        if (block->pf_gains[0] > FLT_EPSILON && filter_len > 0)
+            f->opusdsp.postfilter(block->buf + 1024 + 2 * CELT_OVERLAP,
+                                  block->pf_period, block->pf_gains,
+                                  filter_len);
+
+        block->pf_period_old = block->pf_period;
+        memcpy(block->pf_gains_old, block->pf_gains, sizeof(block->pf_gains));
+    }
+
+    memmove(block->buf, block->buf + len, (1024 + CELT_OVERLAP / 2) * sizeof(float));
+}
+
+static int parse_postfilter(CeltFrame *f, OpusRangeCoder *rc, int consumed)
+{
+    int i;
+
+    memset(f->block[0].pf_gains_new, 0, sizeof(f->block[0].pf_gains_new));
+    memset(f->block[1].pf_gains_new, 0, sizeof(f->block[1].pf_gains_new));
+
+    if (f->start_band == 0 && consumed + 16 <= f->framebits) {
+        int has_postfilter = ff_opus_rc_dec_log(rc, 1);
+        if (has_postfilter) {
+            float gain;
+            int tapset, octave, period;
+
+            octave = ff_opus_rc_dec_uint(rc, 6);
+            period = (16 << octave) + ff_opus_rc_get_raw(rc, 4 + octave) - 1;
+            gain   = 0.09375f * (ff_opus_rc_get_raw(rc, 3) + 1);
+            tapset = (opus_rc_tell(rc) + 2 <= f->framebits) ?
+                     ff_opus_rc_dec_cdf(rc, ff_celt_model_tapset) : 0;
+
+            for (i = 0; i < 2; i++) {
+                CeltBlock *block = &f->block[i];
+
+                block->pf_period_new = FFMAX(period, CELT_POSTFILTER_MINPERIOD);
+                block->pf_gains_new[0] = gain * ff_celt_postfilter_taps[tapset][0];
+                block->pf_gains_new[1] = gain * ff_celt_postfilter_taps[tapset][1];
+                block->pf_gains_new[2] = gain * ff_celt_postfilter_taps[tapset][2];
+            }
+        }
+
+        consumed = opus_rc_tell(rc);
+    }
+
+    return consumed;
+}
+
+static void process_anticollapse(CeltFrame *f, CeltBlock *block, float *X)
+{
+    int i, j, k;
+
+    for (i = f->start_band; i < f->end_band; i++) {
+        int renormalize = 0;
+        float *xptr;
+        float prev[2];
+        float Ediff, r;
+        float thresh, sqrt_1;
+        int depth;
+
+        /* depth in 1/8 bits */
+        depth = (1 + f->pulses[i]) / (ff_celt_freq_range[i] << f->size);
+        thresh = exp2f(-1.0 - 0.125f * depth);
+        sqrt_1 = 1.0f / sqrtf(ff_celt_freq_range[i] << f->size);
+
+        xptr = X + (ff_celt_freq_bands[i] << f->size);
+
+        prev[0] = block->prev_energy[0][i];
+        prev[1] = block->prev_energy[1][i];
+        if (f->channels == 1) {
+            CeltBlock *block1 = &f->block[1];
+
+            prev[0] = FFMAX(prev[0], block1->prev_energy[0][i]);
+            prev[1] = FFMAX(prev[1], block1->prev_energy[1][i]);
+        }
+        Ediff = block->energy[i] - FFMIN(prev[0], prev[1]);
+        Ediff = FFMAX(0, Ediff);
+
+        /* r needs to be multiplied by 2 or 2*sqrt(2) depending on LM because
+        short blocks don't have the same energy as long */
+        r = exp2f(1 - Ediff);
+        if (f->size == 3)
+            r *= M_SQRT2;
+        r = FFMIN(thresh, r) * sqrt_1;
+        for (k = 0; k < 1 << f->size; k++) {
+            /* Detect collapse */
+            if (!(block->collapse_masks[i] & 1 << k)) {
+                /* Fill with noise */
+                for (j = 0; j < ff_celt_freq_range[i]; j++)
+                    xptr[(j << f->size) + k] = (celt_rng(f) & 0x8000) ? r : -r;
+                renormalize = 1;
+            }
+        }
+
+        /* We just added some energy, so we need to renormalize */
+        if (renormalize)
+            celt_renormalize_vector(xptr, ff_celt_freq_range[i] << f->size, 1.0f);
+    }
+}
+
+int ff_celt_decode_frame(CeltFrame *f, OpusRangeCoder *rc,
+                         float **output, int channels, int frame_size,
+                         int start_band,  int end_band)
+{
+    int i, j, downmix = 0;
+    int consumed;           // bits of entropy consumed thus far for this frame
+    MDCT15Context *imdct;
+
+    if (channels != 1 && channels != 2) {
+        av_log(f->avctx, AV_LOG_ERROR, "Invalid number of coded channels: %d\n",
+               channels);
+        return AVERROR_INVALIDDATA;
+    }
+    if (start_band < 0 || start_band > end_band || end_band > CELT_MAX_BANDS) {
+        av_log(f->avctx, AV_LOG_ERROR, "Invalid start/end band: %d %d\n",
+               start_band, end_band);
+        return AVERROR_INVALIDDATA;
+    }
+
+    f->silence        = 0;
+    f->transient      = 0;
+    f->anticollapse   = 0;
+    f->flushed        = 0;
+    f->channels       = channels;
+    f->start_band     = start_band;
+    f->end_band       = end_band;
+    f->framebits      = rc->rb.bytes * 8;
+
+    f->size = av_log2(frame_size / CELT_SHORT_BLOCKSIZE);
+    if (f->size > CELT_MAX_LOG_BLOCKS ||
+        frame_size != CELT_SHORT_BLOCKSIZE * (1 << f->size)) {
+        av_log(f->avctx, AV_LOG_ERROR, "Invalid CELT frame size: %d\n",
+               frame_size);
+        return AVERROR_INVALIDDATA;
+    }
+
+    if (!f->output_channels)
+        f->output_channels = channels;
+
+    for (i = 0; i < f->channels; i++) {
+        memset(f->block[i].coeffs,         0, sizeof(f->block[i].coeffs));
+        memset(f->block[i].collapse_masks, 0, sizeof(f->block[i].collapse_masks));
+    }
+
+    consumed = opus_rc_tell(rc);
+
+    /* obtain silence flag */
+    if (consumed >= f->framebits)
+        f->silence = 1;
+    else if (consumed == 1)
+        f->silence = ff_opus_rc_dec_log(rc, 15);
+
+
+    if (f->silence) {
+        consumed = f->framebits;
+        rc->total_bits += f->framebits - opus_rc_tell(rc);
+    }
+
+    /* obtain post-filter options */
+    consumed = parse_postfilter(f, rc, consumed);
+
+    /* obtain transient flag */
+    if (f->size != 0 && consumed+3 <= f->framebits)
+        f->transient = ff_opus_rc_dec_log(rc, 3);
+
+    f->blocks    = f->transient ? 1 << f->size : 1;
+    f->blocksize = frame_size / f->blocks;
+
+    imdct = f->imdct[f->transient ? 0 : f->size];
+
+    if (channels == 1) {
+        for (i = 0; i < CELT_MAX_BANDS; i++)
+            f->block[0].energy[i] = FFMAX(f->block[0].energy[i], f->block[1].energy[i]);
+    }
+
+    celt_decode_coarse_energy(f, rc);
+    celt_decode_tf_changes   (f, rc);
+    ff_celt_bitalloc         (f, rc, 0);
+    celt_decode_fine_energy  (f, rc);
+    ff_celt_quant_bands      (f, rc);
+
+    if (f->anticollapse_needed)
+        f->anticollapse = ff_opus_rc_get_raw(rc, 1);
+
+    celt_decode_final_energy(f, rc);
+
+    /* apply anti-collapse processing and denormalization to
+     * each coded channel */
+    for (i = 0; i < f->channels; i++) {
+        CeltBlock *block = &f->block[i];
+
+        if (f->anticollapse)
+            process_anticollapse(f, block, f->block[i].coeffs);
+
+        celt_denormalize(f, block, f->block[i].coeffs);
+    }
+
+    /* stereo -> mono downmix */
+    if (f->output_channels < f->channels) {
+        f->dsp->vector_fmac_scalar(f->block[0].coeffs, f->block[1].coeffs, 1.0, FFALIGN(frame_size, 16));
+        downmix = 1;
+    } else if (f->output_channels > f->channels)
+        memcpy(f->block[1].coeffs, f->block[0].coeffs, frame_size * sizeof(float));
+
+    if (f->silence) {
+        for (i = 0; i < 2; i++) {
+            CeltBlock *block = &f->block[i];
+
+            for (j = 0; j < FF_ARRAY_ELEMS(block->energy); j++)
+                block->energy[j] = CELT_ENERGY_SILENCE;
+        }
+        memset(f->block[0].coeffs, 0, sizeof(f->block[0].coeffs));
+        memset(f->block[1].coeffs, 0, sizeof(f->block[1].coeffs));
+    }
+
+    /* transform and output for each output channel */
+    for (i = 0; i < f->output_channels; i++) {
+        CeltBlock *block = &f->block[i];
+
+        /* iMDCT and overlap-add */
+        for (j = 0; j < f->blocks; j++) {
+            float *dst  = block->buf + 1024 + j * f->blocksize;
+
+            imdct->imdct_half(imdct, dst + CELT_OVERLAP / 2, f->block[i].coeffs + j,
+                              f->blocks);
+            f->dsp->vector_fmul_window(dst, dst, dst + CELT_OVERLAP / 2,
+                                       ff_celt_window, CELT_OVERLAP / 2);
+        }
+
+        if (downmix)
+            f->dsp->vector_fmul_scalar(&block->buf[1024], &block->buf[1024], 0.5f, frame_size);
+
+        /* postfilter */
+        celt_postfilter(f, block);
+
+        /* deemphasis */
+        block->emph_coeff = f->opusdsp.deemphasis(output[i],
+                                                  &block->buf[1024 - frame_size],
+                                                  block->emph_coeff, frame_size);
+    }
+
+    if (channels == 1)
+        memcpy(f->block[1].energy, f->block[0].energy, sizeof(f->block[0].energy));
+
+    for (i = 0; i < 2; i++ ) {
+        CeltBlock *block = &f->block[i];
+
+        if (!f->transient) {
+            memcpy(block->prev_energy[1], block->prev_energy[0], sizeof(block->prev_energy[0]));
+            memcpy(block->prev_energy[0], block->energy,         sizeof(block->prev_energy[0]));
+        } else {
+            for (j = 0; j < CELT_MAX_BANDS; j++)
+                block->prev_energy[0][j] = FFMIN(block->prev_energy[0][j], block->energy[j]);
+        }
+
+        for (j = 0; j < f->start_band; j++) {
+            block->prev_energy[0][j] = CELT_ENERGY_SILENCE;
+            block->energy[j]         = 0.0;
+        }
+        for (j = f->end_band; j < CELT_MAX_BANDS; j++) {
+            block->prev_energy[0][j] = CELT_ENERGY_SILENCE;
+            block->energy[j]         = 0.0;
+        }
+    }
+
+    f->seed = rc->range;
+
+    return 0;
+}
+
+void ff_celt_flush(CeltFrame *f)
+{
+    int i, j;
+
+    if (f->flushed)
+        return;
+
+    for (i = 0; i < 2; i++) {
+        CeltBlock *block = &f->block[i];
+
+        for (j = 0; j < CELT_MAX_BANDS; j++)
+            block->prev_energy[0][j] = block->prev_energy[1][j] = CELT_ENERGY_SILENCE;
+
+        memset(block->energy, 0, sizeof(block->energy));
+        memset(block->buf,    0, sizeof(block->buf));
+
+        memset(block->pf_gains,     0, sizeof(block->pf_gains));
+        memset(block->pf_gains_old, 0, sizeof(block->pf_gains_old));
+        memset(block->pf_gains_new, 0, sizeof(block->pf_gains_new));
+
+        block->emph_coeff = 0.0;
+    }
+    f->seed = 0;
+
+    f->flushed = 1;
+}
+
+void ff_celt_free(CeltFrame **f)
+{
+    CeltFrame *frm = *f;
+    int i;
+
+    if (!frm)
+        return;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(frm->imdct); i++)
+        ff_mdct15_uninit(&frm->imdct[i]);
+
+    ff_celt_pvq_uninit(&frm->pvq);
+
+    av_freep(&frm->dsp);
+    av_freep(f);
+}
+
+int ff_celt_init(AVCodecContext *avctx, CeltFrame **f, int output_channels,
+                 int apply_phase_inv)
+{
+    CeltFrame *frm;
+    int i, ret;
+
+    if (output_channels != 1 && output_channels != 2) {
+        av_log(avctx, AV_LOG_ERROR, "Invalid number of output channels: %d\n",
+               output_channels);
+        return AVERROR(EINVAL);
+    }
+
+    frm = av_mallocz(sizeof(*frm));
+    if (!frm)
+        return AVERROR(ENOMEM);
+
+    frm->avctx           = avctx;
+    frm->output_channels = output_channels;
+    frm->apply_phase_inv = apply_phase_inv;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(frm->imdct); i++)
+        if ((ret = ff_mdct15_init(&frm->imdct[i], 1, i + 3, -1.0f/32768)) < 0)
+            goto fail;
+
+    if ((ret = ff_celt_pvq_init(&frm->pvq, 0)) < 0)
+        goto fail;
+
+    frm->dsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
+    if (!frm->dsp) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    ff_opus_dsp_init(&frm->opusdsp);
+    ff_celt_flush(frm);
+
+    *f = frm;
+
+    return 0;
+fail:
+    ff_celt_free(&frm);
+    return ret;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_celt.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_celt.h
new file mode 100644
index 000000000..7c1c5316b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_celt.h
@@ -0,0 +1,171 @@
+/*
+ * Opus decoder/demuxer common functions
+ * Copyright (c) 2012 Andrew D'Addesio
+ * Copyright (c) 2013-2014 Mozilla Corporation
+ * Copyright (c) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_OPUS_CELT_H
+#define AVCODEC_OPUS_CELT_H
+
+#include <float.h>
+
+#include "opus.h"
+#include "opus_pvq.h"
+#include "opusdsp.h"
+
+#include "mdct15.h"
+#include "libavutil/float_dsp.h"
+#include "libavutil/libm.h"
+
+#define CELT_VECTORS                 11
+#define CELT_ALLOC_STEPS             6
+#define CELT_FINE_OFFSET             21
+#define CELT_MAX_FINE_BITS           8
+#define CELT_NORM_SCALE              16384
+#define CELT_QTHETA_OFFSET           4
+#define CELT_QTHETA_OFFSET_TWOPHASE  16
+#define CELT_POSTFILTER_MINPERIOD    15
+#define CELT_ENERGY_SILENCE          (-28.0f)
+
+typedef struct CeltPVQ CeltPVQ;
+
+enum CeltSpread {
+    CELT_SPREAD_NONE,
+    CELT_SPREAD_LIGHT,
+    CELT_SPREAD_NORMAL,
+    CELT_SPREAD_AGGRESSIVE
+};
+
+enum CeltBlockSize {
+    CELT_BLOCK_120,
+    CELT_BLOCK_240,
+    CELT_BLOCK_480,
+    CELT_BLOCK_960,
+
+    CELT_BLOCK_NB
+};
+
+typedef struct CeltBlock {
+    float energy[CELT_MAX_BANDS];
+    float lin_energy[CELT_MAX_BANDS];
+    float error_energy[CELT_MAX_BANDS];
+    float prev_energy[2][CELT_MAX_BANDS];
+
+    uint8_t collapse_masks[CELT_MAX_BANDS];
+
+    /* buffer for mdct output + postfilter */
+    DECLARE_ALIGNED(32, float, buf)[2048];
+    DECLARE_ALIGNED(32, float, coeffs)[CELT_MAX_FRAME_SIZE];
+
+    /* Used by the encoder */
+    DECLARE_ALIGNED(32, float, overlap)[FFALIGN(CELT_OVERLAP, 16)];
+    DECLARE_ALIGNED(32, float, samples)[FFALIGN(CELT_MAX_FRAME_SIZE, 16)];
+
+    /* postfilter parameters */
+    int   pf_period_new;
+    float pf_gains_new[3];
+    int   pf_period;
+    float pf_gains[3];
+    int   pf_period_old;
+    float pf_gains_old[3];
+
+    float emph_coeff;
+} CeltBlock;
+
+struct CeltFrame {
+    // constant values that do not change during context lifetime
+    AVCodecContext      *avctx;
+    MDCT15Context       *imdct[4];
+    AVFloatDSPContext   *dsp;
+    CeltBlock           block[2];
+    CeltPVQ             *pvq;
+    OpusDSP             opusdsp;
+    int channels;
+    int output_channels;
+    int apply_phase_inv;
+
+    enum CeltBlockSize size;
+    int start_band;
+    int end_band;
+    int coded_bands;
+    int transient;
+    int pfilter;
+    int skip_band_floor;
+    int tf_select;
+    int alloc_trim;
+    int alloc_boost[CELT_MAX_BANDS];
+    int blocks;        /* number of iMDCT blocks in the frame, depends on transient */
+    int blocksize;     /* size of each block */
+    int silence;       /* Frame is filled with silence */
+    int anticollapse_needed; /* Whether to expect an anticollapse bit */
+    int anticollapse;  /* Encoded anticollapse bit */
+    int intensity_stereo;
+    int dual_stereo;
+    int flushed;
+    uint32_t seed;
+    enum CeltSpread spread;
+
+    /* Encoder PF coeffs */
+    int pf_octave;
+    int pf_period;
+    int pf_tapset;
+    float pf_gain;
+
+    /* Bit allocation */
+    int framebits;
+    int remaining;
+    int remaining2;
+    int caps         [CELT_MAX_BANDS];
+    int fine_bits    [CELT_MAX_BANDS];
+    int fine_priority[CELT_MAX_BANDS];
+    int pulses       [CELT_MAX_BANDS];
+    int tf_change    [CELT_MAX_BANDS];
+};
+
+/* LCG for noise generation */
+static av_always_inline uint32_t celt_rng(CeltFrame *f)
+{
+    f->seed = 1664525 * f->seed + 1013904223;
+    return f->seed;
+}
+
+static av_always_inline void celt_renormalize_vector(float *X, int N, float gain)
+{
+    int i;
+    float g = 1e-15f;
+    for (i = 0; i < N; i++)
+        g += X[i] * X[i];
+    g = gain / sqrtf(g);
+
+    for (i = 0; i < N; i++)
+        X[i] *= g;
+}
+
+int ff_celt_init(AVCodecContext *avctx, CeltFrame **f, int output_channels,
+                 int apply_phase_inv);
+
+void ff_celt_free(CeltFrame **f);
+
+void ff_celt_flush(CeltFrame *f);
+
+int ff_celt_decode_frame(CeltFrame *f, OpusRangeCoder *rc, float **output,
+                         int coded_channels, int frame_size, int startband, int endband);
+
+#endif /* AVCODEC_OPUS_CELT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_pvq.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_pvq.c
new file mode 100644
index 000000000..9c21d6729
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_pvq.c
@@ -0,0 +1,917 @@
+/*
+ * Copyright (c) 2007-2008 CSIRO
+ * Copyright (c) 2007-2009 Xiph.Org Foundation
+ * Copyright (c) 2008-2009 Gregory Maxwell
+ * Copyright (c) 2012 Andrew D'Addesio
+ * Copyright (c) 2013-2014 Mozilla Corporation
+ * Copyright (c) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "opustab.h"
+#include "opus_pvq.h"
+
+#define CELT_PVQ_U(n, k) (ff_celt_pvq_u_row[FFMIN(n, k)][FFMAX(n, k)])
+#define CELT_PVQ_V(n, k) (CELT_PVQ_U(n, k) + CELT_PVQ_U(n, (k) + 1))
+
+static inline int16_t celt_cos(int16_t x)
+{
+    x = (MUL16(x, x) + 4096) >> 13;
+    x = (32767-x) + ROUND_MUL16(x, (-7651 + ROUND_MUL16(x, (8277 + ROUND_MUL16(-626, x)))));
+    return x + 1;
+}
+
+static inline int celt_log2tan(int isin, int icos)
+{
+    int lc, ls;
+    lc = opus_ilog(icos);
+    ls = opus_ilog(isin);
+    icos <<= 15 - lc;
+    isin <<= 15 - ls;
+    return (ls << 11) - (lc << 11) +
+           ROUND_MUL16(isin, ROUND_MUL16(isin, -2597) + 7932) -
+           ROUND_MUL16(icos, ROUND_MUL16(icos, -2597) + 7932);
+}
+
+static inline int celt_bits2pulses(const uint8_t *cache, int bits)
+{
+    // TODO: Find the size of cache and make it into an array in the parameters list
+    int i, low = 0, high;
+
+    high = cache[0];
+    bits--;
+
+    for (i = 0; i < 6; i++) {
+        int center = (low + high + 1) >> 1;
+        if (cache[center] >= bits)
+            high = center;
+        else
+            low = center;
+    }
+
+    return (bits - (low == 0 ? -1 : cache[low]) <= cache[high] - bits) ? low : high;
+}
+
+static inline int celt_pulses2bits(const uint8_t *cache, int pulses)
+{
+    // TODO: Find the size of cache and make it into an array in the parameters list
+   return (pulses == 0) ? 0 : cache[pulses] + 1;
+}
+
+static inline void celt_normalize_residual(const int * av_restrict iy, float * av_restrict X,
+                                           int N, float g)
+{
+    int i;
+    for (i = 0; i < N; i++)
+        X[i] = g * iy[i];
+}
+
+static void celt_exp_rotation_impl(float *X, uint32_t len, uint32_t stride,
+                                   float c, float s)
+{
+    float *Xptr;
+    int i;
+
+    Xptr = X;
+    for (i = 0; i < len - stride; i++) {
+        float x1     = Xptr[0];
+        float x2     = Xptr[stride];
+        Xptr[stride] = c * x2 + s * x1;
+        *Xptr++      = c * x1 - s * x2;
+    }
+
+    Xptr = &X[len - 2 * stride - 1];
+    for (i = len - 2 * stride - 1; i >= 0; i--) {
+        float x1     = Xptr[0];
+        float x2     = Xptr[stride];
+        Xptr[stride] = c * x2 + s * x1;
+        *Xptr--      = c * x1 - s * x2;
+    }
+}
+
+static inline void celt_exp_rotation(float *X, uint32_t len,
+                                     uint32_t stride, uint32_t K,
+                                     enum CeltSpread spread, const int encode)
+{
+    uint32_t stride2 = 0;
+    float c, s;
+    float gain, theta;
+    int i;
+
+    if (2*K >= len || spread == CELT_SPREAD_NONE)
+        return;
+
+    gain = (float)len / (len + (20 - 5*spread) * K);
+    theta = M_PI * gain * gain / 4;
+
+    c = cosf(theta);
+    s = sinf(theta);
+
+    if (len >= stride << 3) {
+        stride2 = 1;
+        /* This is just a simple (equivalent) way of computing sqrt(len/stride) with rounding.
+        It's basically incrementing long as (stride2+0.5)^2 < len/stride. */
+        while ((stride2 * stride2 + stride2) * stride + (stride >> 2) < len)
+            stride2++;
+    }
+
+    len /= stride;
+    for (i = 0; i < stride; i++) {
+        if (encode) {
+            celt_exp_rotation_impl(X + i * len, len, 1, c, -s);
+            if (stride2)
+                celt_exp_rotation_impl(X + i * len, len, stride2, s, -c);
+        } else {
+            if (stride2)
+                celt_exp_rotation_impl(X + i * len, len, stride2, s, c);
+            celt_exp_rotation_impl(X + i * len, len, 1, c, s);
+        }
+    }
+}
+
+static inline uint32_t celt_extract_collapse_mask(const int *iy, uint32_t N, uint32_t B)
+{
+    int i, j, N0 = N / B;
+    uint32_t collapse_mask = 0;
+
+    if (B <= 1)
+        return 1;
+
+    for (i = 0; i < B; i++)
+        for (j = 0; j < N0; j++)
+            collapse_mask |= (!!iy[i*N0+j]) << i;
+    return collapse_mask;
+}
+
+static inline void celt_stereo_merge(float *X, float *Y, float mid, int N)
+{
+    int i;
+    float xp = 0, side = 0;
+    float E[2];
+    float mid2;
+    float gain[2];
+
+    /* Compute the norm of X+Y and X-Y as |X|^2 + |Y|^2 +/- sum(xy) */
+    for (i = 0; i < N; i++) {
+        xp   += X[i] * Y[i];
+        side += Y[i] * Y[i];
+    }
+
+    /* Compensating for the mid normalization */
+    xp *= mid;
+    mid2 = mid;
+    E[0] = mid2 * mid2 + side - 2 * xp;
+    E[1] = mid2 * mid2 + side + 2 * xp;
+    if (E[0] < 6e-4f || E[1] < 6e-4f) {
+        for (i = 0; i < N; i++)
+            Y[i] = X[i];
+        return;
+    }
+
+    gain[0] = 1.0f / sqrtf(E[0]);
+    gain[1] = 1.0f / sqrtf(E[1]);
+
+    for (i = 0; i < N; i++) {
+        float value[2];
+        /* Apply mid scaling (side is already scaled) */
+        value[0] = mid * X[i];
+        value[1] = Y[i];
+        X[i] = gain[0] * (value[0] - value[1]);
+        Y[i] = gain[1] * (value[0] + value[1]);
+    }
+}
+
+static void celt_interleave_hadamard(float *tmp, float *X, int N0,
+                                     int stride, int hadamard)
+{
+    int i, j, N = N0*stride;
+    const uint8_t *order = &ff_celt_hadamard_order[hadamard ? stride - 2 : 30];
+
+    for (i = 0; i < stride; i++)
+        for (j = 0; j < N0; j++)
+            tmp[j*stride+i] = X[order[i]*N0+j];
+
+    memcpy(X, tmp, N*sizeof(float));
+}
+
+static void celt_deinterleave_hadamard(float *tmp, float *X, int N0,
+                                       int stride, int hadamard)
+{
+    int i, j, N = N0*stride;
+    const uint8_t *order = &ff_celt_hadamard_order[hadamard ? stride - 2 : 30];
+
+    for (i = 0; i < stride; i++)
+        for (j = 0; j < N0; j++)
+            tmp[order[i]*N0+j] = X[j*stride+i];
+
+    memcpy(X, tmp, N*sizeof(float));
+}
+
+static void celt_haar1(float *X, int N0, int stride)
+{
+    int i, j;
+    N0 >>= 1;
+    for (i = 0; i < stride; i++) {
+        for (j = 0; j < N0; j++) {
+            float x0 = X[stride * (2 * j + 0) + i];
+            float x1 = X[stride * (2 * j + 1) + i];
+            X[stride * (2 * j + 0) + i] = (x0 + x1) * M_SQRT1_2;
+            X[stride * (2 * j + 1) + i] = (x0 - x1) * M_SQRT1_2;
+        }
+    }
+}
+
+static inline int celt_compute_qn(int N, int b, int offset, int pulse_cap,
+                                  int stereo)
+{
+    int qn, qb;
+    int N2 = 2 * N - 1;
+    if (stereo && N == 2)
+        N2--;
+
+    /* The upper limit ensures that in a stereo split with itheta==16384, we'll
+     * always have enough bits left over to code at least one pulse in the
+     * side; otherwise it would collapse, since it doesn't get folded. */
+    qb = FFMIN3(b - pulse_cap - (4 << 3), (b + N2 * offset) / N2, 8 << 3);
+    qn = (qb < (1 << 3 >> 1)) ? 1 : ((ff_celt_qn_exp2[qb & 0x7] >> (14 - (qb >> 3))) + 1) >> 1 << 1;
+    return qn;
+}
+
+/* Convert the quantized vector to an index */
+static inline uint32_t celt_icwrsi(uint32_t N, uint32_t K, const int *y)
+{
+    int i, idx = 0, sum = 0;
+    for (i = N - 1; i >= 0; i--) {
+        const uint32_t i_s = CELT_PVQ_U(N - i, sum + FFABS(y[i]) + 1);
+        idx += CELT_PVQ_U(N - i, sum) + (y[i] < 0)*i_s;
+        sum += FFABS(y[i]);
+    }
+    return idx;
+}
+
+// this code was adapted from libopus
+static inline uint64_t celt_cwrsi(uint32_t N, uint32_t K, uint32_t i, int *y)
+{
+    uint64_t norm = 0;
+    uint32_t q, p;
+    int s, val;
+    int k0;
+
+    while (N > 2) {
+        /*Lots of pulses case:*/
+        if (K >= N) {
+            const uint32_t *row = ff_celt_pvq_u_row[N];
+
+            /* Are the pulses in this dimension negative? */
+            p  = row[K + 1];
+            s  = -(i >= p);
+            i -= p & s;
+
+            /*Count how many pulses were placed in this dimension.*/
+            k0 = K;
+            q = row[N];
+            if (q > i) {
+                K = N;
+                do {
+                    p = ff_celt_pvq_u_row[--K][N];
+                } while (p > i);
+            } else
+                for (p = row[K]; p > i; p = row[K])
+                    K--;
+
+            i    -= p;
+            val   = (k0 - K + s) ^ s;
+            norm += val * val;
+            *y++  = val;
+        } else { /*Lots of dimensions case:*/
+            /*Are there any pulses in this dimension at all?*/
+            p = ff_celt_pvq_u_row[K    ][N];
+            q = ff_celt_pvq_u_row[K + 1][N];
+
+            if (p <= i && i < q) {
+                i -= p;
+                *y++ = 0;
+            } else {
+                /*Are the pulses in this dimension negative?*/
+                s  = -(i >= q);
+                i -= q & s;
+
+                /*Count how many pulses were placed in this dimension.*/
+                k0 = K;
+                do p = ff_celt_pvq_u_row[--K][N];
+                while (p > i);
+
+                i    -= p;
+                val   = (k0 - K + s) ^ s;
+                norm += val * val;
+                *y++  = val;
+            }
+        }
+        N--;
+    }
+
+    /* N == 2 */
+    p  = 2 * K + 1;
+    s  = -(i >= p);
+    i -= p & s;
+    k0 = K;
+    K  = (i + 1) / 2;
+
+    if (K)
+        i -= 2 * K - 1;
+
+    val   = (k0 - K + s) ^ s;
+    norm += val * val;
+    *y++  = val;
+
+    /* N==1 */
+    s     = -i;
+    val   = (K + s) ^ s;
+    norm += val * val;
+    *y    = val;
+
+    return norm;
+}
+
+static inline void celt_encode_pulses(OpusRangeCoder *rc, int *y, uint32_t N, uint32_t K)
+{
+    ff_opus_rc_enc_uint(rc, celt_icwrsi(N, K, y), CELT_PVQ_V(N, K));
+}
+
+static inline float celt_decode_pulses(OpusRangeCoder *rc, int *y, uint32_t N, uint32_t K)
+{
+    const uint32_t idx = ff_opus_rc_dec_uint(rc, CELT_PVQ_V(N, K));
+    return celt_cwrsi(N, K, idx, y);
+}
+
+/*
+ * Faster than libopus's search, operates entirely in the signed domain.
+ * Slightly worse/better depending on N, K and the input vector.
+ */
+static float ppp_pvq_search_c(float *X, int *y, int K, int N)
+{
+    int i, y_norm = 0;
+    float res = 0.0f, xy_norm = 0.0f;
+
+    for (i = 0; i < N; i++)
+        res += FFABS(X[i]);
+
+    res = K/(res + FLT_EPSILON);
+
+    for (i = 0; i < N; i++) {
+        y[i] = lrintf(res*X[i]);
+        y_norm  += y[i]*y[i];
+        xy_norm += y[i]*X[i];
+        K -= FFABS(y[i]);
+    }
+
+    while (K) {
+        int max_idx = 0, phase = FFSIGN(K);
+        float max_num = 0.0f;
+        float max_den = 1.0f;
+        y_norm += 1.0f;
+
+        for (i = 0; i < N; i++) {
+            /* If the sum has been overshot and the best place has 0 pulses allocated
+             * to it, attempting to decrease it further will actually increase the
+             * sum. Prevent this by disregarding any 0 positions when decrementing. */
+            const int ca = 1 ^ ((y[i] == 0) & (phase < 0));
+            const int y_new = y_norm  + 2*phase*FFABS(y[i]);
+            float xy_new = xy_norm + 1*phase*FFABS(X[i]);
+            xy_new = xy_new * xy_new;
+            if (ca && (max_den*xy_new) > (y_new*max_num)) {
+                max_den = y_new;
+                max_num = xy_new;
+                max_idx = i;
+            }
+        }
+
+        K -= phase;
+
+        phase *= FFSIGN(X[max_idx]);
+        xy_norm += 1*phase*X[max_idx];
+        y_norm  += 2*phase*y[max_idx];
+        y[max_idx] += phase;
+    }
+
+    return (float)y_norm;
+}
+
+static uint32_t celt_alg_quant(OpusRangeCoder *rc, float *X, uint32_t N, uint32_t K,
+                               enum CeltSpread spread, uint32_t blocks, float gain,
+                               CeltPVQ *pvq)
+{
+    int *y = pvq->qcoeff;
+
+    celt_exp_rotation(X, N, blocks, K, spread, 1);
+    gain /= sqrtf(pvq->pvq_search(X, y, K, N));
+    celt_encode_pulses(rc, y,  N, K);
+    celt_normalize_residual(y, X, N, gain);
+    celt_exp_rotation(X, N, blocks, K, spread, 0);
+    return celt_extract_collapse_mask(y, N, blocks);
+}
+
+/** Decode pulse vector and combine the result with the pitch vector to produce
+    the final normalised signal in the current band. */
+static uint32_t celt_alg_unquant(OpusRangeCoder *rc, float *X, uint32_t N, uint32_t K,
+                                 enum CeltSpread spread, uint32_t blocks, float gain,
+                                 CeltPVQ *pvq)
+{
+    int *y = pvq->qcoeff;
+
+    gain /= sqrtf(celt_decode_pulses(rc, y, N, K));
+    celt_normalize_residual(y, X, N, gain);
+    celt_exp_rotation(X, N, blocks, K, spread, 0);
+    return celt_extract_collapse_mask(y, N, blocks);
+}
+
+static int celt_calc_theta(const float *X, const float *Y, int coupling, int N)
+{
+    int i;
+    float e[2] = { 0.0f, 0.0f };
+    if (coupling) { /* Coupling case */
+        for (i = 0; i < N; i++) {
+            e[0] += (X[i] + Y[i])*(X[i] + Y[i]);
+            e[1] += (X[i] - Y[i])*(X[i] - Y[i]);
+        }
+    } else {
+        for (i = 0; i < N; i++) {
+            e[0] += X[i]*X[i];
+            e[1] += Y[i]*Y[i];
+        }
+    }
+    return lrintf(32768.0f*atan2f(sqrtf(e[1]), sqrtf(e[0]))/M_PI);
+}
+
+static void celt_stereo_is_decouple(float *X, float *Y, float e_l, float e_r, int N)
+{
+    int i;
+    const float energy_n = 1.0f/(sqrtf(e_l*e_l + e_r*e_r) + FLT_EPSILON);
+    e_l *= energy_n;
+    e_r *= energy_n;
+    for (i = 0; i < N; i++)
+        X[i] = e_l*X[i] + e_r*Y[i];
+}
+
+static void celt_stereo_ms_decouple(float *X, float *Y, int N)
+{
+    int i;
+    for (i = 0; i < N; i++) {
+        const float Xret = X[i];
+        X[i] = (X[i] + Y[i])*M_SQRT1_2;
+        Y[i] = (Y[i] - Xret)*M_SQRT1_2;
+    }
+}
+
+static av_always_inline uint32_t quant_band_template(CeltPVQ *pvq, CeltFrame *f,
+                                                     OpusRangeCoder *rc,
+                                                     const int band, float *X,
+                                                     float *Y, int N, int b,
+                                                     uint32_t blocks, float *lowband,
+                                                     int duration, float *lowband_out,
+                                                     int level, float gain,
+                                                     float *lowband_scratch,
+                                                     int fill, int quant)
+{
+    int i;
+    const uint8_t *cache;
+    int stereo = !!Y, split = stereo;
+    int imid = 0, iside = 0;
+    uint32_t N0 = N;
+    int N_B = N / blocks;
+    int N_B0 = N_B;
+    int B0 = blocks;
+    int time_divide = 0;
+    int recombine = 0;
+    int inv = 0;
+    float mid = 0, side = 0;
+    int longblocks = (B0 == 1);
+    uint32_t cm = 0;
+
+    if (N == 1) {
+        float *x = X;
+        for (i = 0; i <= stereo; i++) {
+            int sign = 0;
+            if (f->remaining2 >= 1 << 3) {
+                if (quant) {
+                    sign = x[0] < 0;
+                    ff_opus_rc_put_raw(rc, sign, 1);
+                } else {
+                    sign = ff_opus_rc_get_raw(rc, 1);
+                }
+                f->remaining2 -= 1 << 3;
+            }
+            x[0] = 1.0f - 2.0f*sign;
+            x = Y;
+        }
+        if (lowband_out)
+            lowband_out[0] = X[0];
+        return 1;
+    }
+
+    if (!stereo && level == 0) {
+        int tf_change = f->tf_change[band];
+        int k;
+        if (tf_change > 0)
+            recombine = tf_change;
+        /* Band recombining to increase frequency resolution */
+
+        if (lowband &&
+            (recombine || ((N_B & 1) == 0 && tf_change < 0) || B0 > 1)) {
+            for (i = 0; i < N; i++)
+                lowband_scratch[i] = lowband[i];
+            lowband = lowband_scratch;
+        }
+
+        for (k = 0; k < recombine; k++) {
+            if (quant || lowband)
+                celt_haar1(quant ? X : lowband, N >> k, 1 << k);
+            fill = ff_celt_bit_interleave[fill & 0xF] | ff_celt_bit_interleave[fill >> 4] << 2;
+        }
+        blocks >>= recombine;
+        N_B <<= recombine;
+
+        /* Increasing the time resolution */
+        while ((N_B & 1) == 0 && tf_change < 0) {
+            if (quant || lowband)
+                celt_haar1(quant ? X : lowband, N_B, blocks);
+            fill |= fill << blocks;
+            blocks <<= 1;
+            N_B >>= 1;
+            time_divide++;
+            tf_change++;
+        }
+        B0 = blocks;
+        N_B0 = N_B;
+
+        /* Reorganize the samples in time order instead of frequency order */
+        if (B0 > 1 && (quant || lowband))
+            celt_deinterleave_hadamard(pvq->hadamard_tmp, quant ? X : lowband,
+                                       N_B >> recombine, B0 << recombine,
+                                       longblocks);
+    }
+
+    /* If we need 1.5 more bit than we can produce, split the band in two. */
+    cache = ff_celt_cache_bits +
+            ff_celt_cache_index[(duration + 1) * CELT_MAX_BANDS + band];
+    if (!stereo && duration >= 0 && b > cache[cache[0]] + 12 && N > 2) {
+        N >>= 1;
+        Y = X + N;
+        split = 1;
+        duration -= 1;
+        if (blocks == 1)
+            fill = (fill & 1) | (fill << 1);
+        blocks = (blocks + 1) >> 1;
+    }
+
+    if (split) {
+        int qn;
+        int itheta = quant ? celt_calc_theta(X, Y, stereo, N) : 0;
+        int mbits, sbits, delta;
+        int qalloc;
+        int pulse_cap;
+        int offset;
+        int orig_fill;
+        int tell;
+
+        /* Decide on the resolution to give to the split parameter theta */
+        pulse_cap = ff_celt_log_freq_range[band] + duration * 8;
+        offset = (pulse_cap >> 1) - (stereo && N == 2 ? CELT_QTHETA_OFFSET_TWOPHASE :
+                                                          CELT_QTHETA_OFFSET);
+        qn = (stereo && band >= f->intensity_stereo) ? 1 :
+             celt_compute_qn(N, b, offset, pulse_cap, stereo);
+        tell = opus_rc_tell_frac(rc);
+        if (qn != 1) {
+            if (quant)
+                itheta = (itheta*qn + 8192) >> 14;
+            /* Entropy coding of the angle. We use a uniform pdf for the
+             * time split, a step for stereo, and a triangular one for the rest. */
+            if (quant) {
+                if (stereo && N > 2)
+                    ff_opus_rc_enc_uint_step(rc, itheta, qn / 2);
+                else if (stereo || B0 > 1)
+                    ff_opus_rc_enc_uint(rc, itheta, qn + 1);
+                else
+                    ff_opus_rc_enc_uint_tri(rc, itheta, qn);
+                itheta = itheta * 16384 / qn;
+                if (stereo) {
+                    if (itheta == 0)
+                        celt_stereo_is_decouple(X, Y, f->block[0].lin_energy[band],
+                                                f->block[1].lin_energy[band], N);
+                    else
+                        celt_stereo_ms_decouple(X, Y, N);
+                }
+            } else {
+                if (stereo && N > 2)
+                    itheta = ff_opus_rc_dec_uint_step(rc, qn / 2);
+                else if (stereo || B0 > 1)
+                    itheta = ff_opus_rc_dec_uint(rc, qn+1);
+                else
+                    itheta = ff_opus_rc_dec_uint_tri(rc, qn);
+                itheta = itheta * 16384 / qn;
+            }
+        } else if (stereo) {
+            if (quant) {
+                inv = itheta > 8192;
+                 if (inv) {
+                    for (i = 0; i < N; i++)
+                       Y[i] *= -1;
+                 }
+                 celt_stereo_is_decouple(X, Y, f->block[0].lin_energy[band],
+                                         f->block[1].lin_energy[band], N);
+
+                if (b > 2 << 3 && f->remaining2 > 2 << 3) {
+                    ff_opus_rc_enc_log(rc, inv, 2);
+                } else {
+                    inv = 0;
+                }
+            } else {
+                inv = (b > 2 << 3 && f->remaining2 > 2 << 3) ? ff_opus_rc_dec_log(rc, 2) : 0;
+                inv = f->apply_phase_inv ? inv : 0;
+            }
+            itheta = 0;
+        }
+        qalloc = opus_rc_tell_frac(rc) - tell;
+        b -= qalloc;
+
+        orig_fill = fill;
+        if (itheta == 0) {
+            imid = 32767;
+            iside = 0;
+            fill = av_mod_uintp2(fill, blocks);
+            delta = -16384;
+        } else if (itheta == 16384) {
+            imid = 0;
+            iside = 32767;
+            fill &= ((1 << blocks) - 1) << blocks;
+            delta = 16384;
+        } else {
+            imid = celt_cos(itheta);
+            iside = celt_cos(16384-itheta);
+            /* This is the mid vs side allocation that minimizes squared error
+            in that band. */
+            delta = ROUND_MUL16((N - 1) << 7, celt_log2tan(iside, imid));
+        }
+
+        mid  = imid  / 32768.0f;
+        side = iside / 32768.0f;
+
+        /* This is a special case for N=2 that only works for stereo and takes
+        advantage of the fact that mid and side are orthogonal to encode
+        the side with just one bit. */
+        if (N == 2 && stereo) {
+            int c;
+            int sign = 0;
+            float tmp;
+            float *x2, *y2;
+            mbits = b;
+            /* Only need one bit for the side */
+            sbits = (itheta != 0 && itheta != 16384) ? 1 << 3 : 0;
+            mbits -= sbits;
+            c = (itheta > 8192);
+            f->remaining2 -= qalloc+sbits;
+
+            x2 = c ? Y : X;
+            y2 = c ? X : Y;
+            if (sbits) {
+                if (quant) {
+                    sign = x2[0]*y2[1] - x2[1]*y2[0] < 0;
+                    ff_opus_rc_put_raw(rc, sign, 1);
+                } else {
+                    sign = ff_opus_rc_get_raw(rc, 1);
+                }
+            }
+            sign = 1 - 2 * sign;
+            /* We use orig_fill here because we want to fold the side, but if
+            itheta==16384, we'll have cleared the low bits of fill. */
+            cm = pvq->quant_band(pvq, f, rc, band, x2, NULL, N, mbits, blocks, lowband, duration,
+                                 lowband_out, level, gain, lowband_scratch, orig_fill);
+            /* We don't split N=2 bands, so cm is either 1 or 0 (for a fold-collapse),
+            and there's no need to worry about mixing with the other channel. */
+            y2[0] = -sign * x2[1];
+            y2[1] =  sign * x2[0];
+            X[0] *= mid;
+            X[1] *= mid;
+            Y[0] *= side;
+            Y[1] *= side;
+            tmp = X[0];
+            X[0] = tmp - Y[0];
+            Y[0] = tmp + Y[0];
+            tmp = X[1];
+            X[1] = tmp - Y[1];
+            Y[1] = tmp + Y[1];
+        } else {
+            /* "Normal" split code */
+            float *next_lowband2     = NULL;
+            float *next_lowband_out1 = NULL;
+            int next_level = 0;
+            int rebalance;
+            uint32_t cmt;
+
+            /* Give more bits to low-energy MDCTs than they would
+             * otherwise deserve */
+            if (B0 > 1 && !stereo && (itheta & 0x3fff)) {
+                if (itheta > 8192)
+                    /* Rough approximation for pre-echo masking */
+                    delta -= delta >> (4 - duration);
+                else
+                    /* Corresponds to a forward-masking slope of
+                     * 1.5 dB per 10 ms */
+                    delta = FFMIN(0, delta + (N << 3 >> (5 - duration)));
+            }
+            mbits = av_clip((b - delta) / 2, 0, b);
+            sbits = b - mbits;
+            f->remaining2 -= qalloc;
+
+            if (lowband && !stereo)
+                next_lowband2 = lowband + N; /* >32-bit split case */
+
+            /* Only stereo needs to pass on lowband_out.
+             * Otherwise, it's handled at the end */
+            if (stereo)
+                next_lowband_out1 = lowband_out;
+            else
+                next_level = level + 1;
+
+            rebalance = f->remaining2;
+            if (mbits >= sbits) {
+                /* In stereo mode, we do not apply a scaling to the mid
+                 * because we need the normalized mid for folding later */
+                cm = pvq->quant_band(pvq, f, rc, band, X, NULL, N, mbits, blocks,
+                                     lowband, duration, next_lowband_out1, next_level,
+                                     stereo ? 1.0f : (gain * mid), lowband_scratch, fill);
+                rebalance = mbits - (rebalance - f->remaining2);
+                if (rebalance > 3 << 3 && itheta != 0)
+                    sbits += rebalance - (3 << 3);
+
+                /* For a stereo split, the high bits of fill are always zero,
+                 * so no folding will be done to the side. */
+                cmt = pvq->quant_band(pvq, f, rc, band, Y, NULL, N, sbits, blocks,
+                                      next_lowband2, duration, NULL, next_level,
+                                      gain * side, NULL, fill >> blocks);
+                cm |= cmt << ((B0 >> 1) & (stereo - 1));
+            } else {
+                /* For a stereo split, the high bits of fill are always zero,
+                 * so no folding will be done to the side. */
+                cm = pvq->quant_band(pvq, f, rc, band, Y, NULL, N, sbits, blocks,
+                                     next_lowband2, duration, NULL, next_level,
+                                     gain * side, NULL, fill >> blocks);
+                cm <<= ((B0 >> 1) & (stereo - 1));
+                rebalance = sbits - (rebalance - f->remaining2);
+                if (rebalance > 3 << 3 && itheta != 16384)
+                    mbits += rebalance - (3 << 3);
+
+                /* In stereo mode, we do not apply a scaling to the mid because
+                 * we need the normalized mid for folding later */
+                cm |= pvq->quant_band(pvq, f, rc, band, X, NULL, N, mbits, blocks,
+                                      lowband, duration, next_lowband_out1, next_level,
+                                      stereo ? 1.0f : (gain * mid), lowband_scratch, fill);
+            }
+        }
+    } else {
+        /* This is the basic no-split case */
+        uint32_t q         = celt_bits2pulses(cache, b);
+        uint32_t curr_bits = celt_pulses2bits(cache, q);
+        f->remaining2 -= curr_bits;
+
+        /* Ensures we can never bust the budget */
+        while (f->remaining2 < 0 && q > 0) {
+            f->remaining2 += curr_bits;
+            curr_bits      = celt_pulses2bits(cache, --q);
+            f->remaining2 -= curr_bits;
+        }
+
+        if (q != 0) {
+            /* Finally do the actual (de)quantization */
+            if (quant) {
+                cm = celt_alg_quant(rc, X, N, (q < 8) ? q : (8 + (q & 7)) << ((q >> 3) - 1),
+                                    f->spread, blocks, gain, pvq);
+            } else {
+                cm = celt_alg_unquant(rc, X, N, (q < 8) ? q : (8 + (q & 7)) << ((q >> 3) - 1),
+                                      f->spread, blocks, gain, pvq);
+            }
+        } else {
+            /* If there's no pulse, fill the band anyway */
+            uint32_t cm_mask = (1 << blocks) - 1;
+            fill &= cm_mask;
+            if (fill) {
+                if (!lowband) {
+                    /* Noise */
+                    for (i = 0; i < N; i++)
+                        X[i] = (((int32_t)celt_rng(f)) >> 20);
+                    cm = cm_mask;
+                } else {
+                    /* Folded spectrum */
+                    for (i = 0; i < N; i++) {
+                        /* About 48 dB below the "normal" folding level */
+                        X[i] = lowband[i] + (((celt_rng(f)) & 0x8000) ? 1.0f / 256 : -1.0f / 256);
+                    }
+                    cm = fill;
+                }
+                celt_renormalize_vector(X, N, gain);
+            } else {
+                memset(X, 0, N*sizeof(float));
+            }
+        }
+    }
+
+    /* This code is used by the decoder and by the resynthesis-enabled encoder */
+    if (stereo) {
+        if (N > 2)
+            celt_stereo_merge(X, Y, mid, N);
+        if (inv) {
+            for (i = 0; i < N; i++)
+                Y[i] *= -1;
+        }
+    } else if (level == 0) {
+        int k;
+
+        /* Undo the sample reorganization going from time order to frequency order */
+        if (B0 > 1)
+            celt_interleave_hadamard(pvq->hadamard_tmp, X, N_B >> recombine,
+                                     B0 << recombine, longblocks);
+
+        /* Undo time-freq changes that we did earlier */
+        N_B = N_B0;
+        blocks = B0;
+        for (k = 0; k < time_divide; k++) {
+            blocks >>= 1;
+            N_B <<= 1;
+            cm |= cm >> blocks;
+            celt_haar1(X, N_B, blocks);
+        }
+
+        for (k = 0; k < recombine; k++) {
+            cm = ff_celt_bit_deinterleave[cm];
+            celt_haar1(X, N0>>k, 1<<k);
+        }
+        blocks <<= recombine;
+
+        /* Scale output for later folding */
+        if (lowband_out) {
+            float n = sqrtf(N0);
+            for (i = 0; i < N0; i++)
+                lowband_out[i] = n * X[i];
+        }
+        cm = av_mod_uintp2(cm, blocks);
+    }
+
+    return cm;
+}
+
+static QUANT_FN(pvq_decode_band)
+{
+#if CONFIG_OPUS_DECODER
+    return quant_band_template(pvq, f, rc, band, X, Y, N, b, blocks, lowband, duration,
+                               lowband_out, level, gain, lowband_scratch, fill, 0);
+#else
+    return 0;
+#endif
+}
+
+static QUANT_FN(pvq_encode_band)
+{
+#if CONFIG_OPUS_ENCODER
+    return quant_band_template(pvq, f, rc, band, X, Y, N, b, blocks, lowband, duration,
+                               lowband_out, level, gain, lowband_scratch, fill, 1);
+#else
+    return 0;
+#endif
+}
+
+int av_cold ff_celt_pvq_init(CeltPVQ **pvq, int encode)
+{
+    CeltPVQ *s = av_malloc(sizeof(CeltPVQ));
+    if (!s)
+        return AVERROR(ENOMEM);
+
+    s->pvq_search = ppp_pvq_search_c;
+    s->quant_band = encode ? pvq_encode_band : pvq_decode_band;
+
+    if (CONFIG_OPUS_ENCODER && ARCH_X86)
+        ff_celt_pvq_init_x86(s);
+
+    *pvq = s;
+
+    return 0;
+}
+
+void av_cold ff_celt_pvq_uninit(CeltPVQ **pvq)
+{
+    av_freep(pvq);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_pvq.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_pvq.h
new file mode 100644
index 000000000..52f9a4e6d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_pvq.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2012 Andrew D'Addesio
+ * Copyright (c) 2013-2014 Mozilla Corporation
+ * Copyright (c) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_OPUS_PVQ_H
+#define AVCODEC_OPUS_PVQ_H
+
+#include "opus_celt.h"
+
+#define QUANT_FN(name) uint32_t (name)(struct CeltPVQ *pvq, CeltFrame *f,            \
+                                       OpusRangeCoder *rc, const int band, float *X, \
+                                       float *Y, int N, int b, uint32_t blocks,      \
+                                       float *lowband, int duration,                 \
+                                       float *lowband_out, int level, float gain,    \
+                                       float *lowband_scratch, int fill)
+
+struct CeltPVQ {
+    DECLARE_ALIGNED(32, int,   qcoeff      )[256];
+    DECLARE_ALIGNED(32, float, hadamard_tmp)[256];
+
+    float (*pvq_search)(float *X, int *y, int K, int N);
+    QUANT_FN(*quant_band);
+};
+
+void ff_celt_pvq_init_x86(struct CeltPVQ *s);
+
+int  ff_celt_pvq_init(struct CeltPVQ **pvq, int encode);
+void ff_celt_pvq_uninit(struct CeltPVQ **pvq);
+
+#endif /* AVCODEC_OPUS_PVQ_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_rc.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_rc.c
new file mode 100644
index 000000000..c432eb90c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_rc.c
@@ -0,0 +1,411 @@
+/*
+ * Copyright (c) 2012 Andrew D'Addesio
+ * Copyright (c) 2013-2014 Mozilla Corporation
+ * Copyright (c) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "opus_rc.h"
+
+#define OPUS_RC_BITS 32
+#define OPUS_RC_SYM  8
+#define OPUS_RC_CEIL ((1 << OPUS_RC_SYM) - 1)
+#define OPUS_RC_TOP (1u << 31)
+#define OPUS_RC_BOT (OPUS_RC_TOP >> OPUS_RC_SYM)
+#define OPUS_RC_SHIFT (OPUS_RC_BITS - OPUS_RC_SYM - 1)
+
+static av_always_inline void opus_rc_enc_carryout(OpusRangeCoder *rc, int cbuf)
+{
+    const int cb = cbuf >> OPUS_RC_SYM, mb = (OPUS_RC_CEIL + cb) & OPUS_RC_CEIL;
+    if (cbuf == OPUS_RC_CEIL) {
+        rc->ext++;
+        return;
+    }
+    rc->rng_cur[0] = rc->rem + cb;
+    rc->rng_cur += (rc->rem >= 0);
+    for (; rc->ext > 0; rc->ext--)
+        *rc->rng_cur++ = mb;
+    av_assert0(rc->rng_cur < rc->rb.position);
+    rc->rem = cbuf & OPUS_RC_CEIL; /* Propagate */
+}
+
+static av_always_inline void opus_rc_dec_normalize(OpusRangeCoder *rc)
+{
+    while (rc->range <= OPUS_RC_BOT) {
+        rc->value = ((rc->value << OPUS_RC_SYM) | (get_bits(&rc->gb, OPUS_RC_SYM) ^ OPUS_RC_CEIL)) & (OPUS_RC_TOP - 1);
+        rc->range     <<= OPUS_RC_SYM;
+        rc->total_bits += OPUS_RC_SYM;
+    }
+}
+
+static av_always_inline void opus_rc_enc_normalize(OpusRangeCoder *rc)
+{
+    while (rc->range <= OPUS_RC_BOT) {
+        opus_rc_enc_carryout(rc, rc->value >> OPUS_RC_SHIFT);
+        rc->value = (rc->value << OPUS_RC_SYM) & (OPUS_RC_TOP - 1);
+        rc->range     <<= OPUS_RC_SYM;
+        rc->total_bits += OPUS_RC_SYM;
+    }
+}
+
+static av_always_inline void opus_rc_dec_update(OpusRangeCoder *rc, uint32_t scale,
+                                                uint32_t low, uint32_t high,
+                                                uint32_t total)
+{
+    rc->value -= scale * (total - high);
+    rc->range  = low ? scale * (high - low)
+                      : rc->range - scale * (total - high);
+    opus_rc_dec_normalize(rc);
+}
+
+/* Main encoding function, this needs to go fast */
+static av_always_inline void opus_rc_enc_update(OpusRangeCoder *rc, uint32_t b, uint32_t p,
+                                                uint32_t p_tot, const int ptwo)
+{
+    uint32_t rscaled, cnd = !!b;
+    if (ptwo) /* Whole function is inlined so hopefully branch is optimized out */
+        rscaled = rc->range >> ff_log2(p_tot);
+    else
+        rscaled = rc->range/p_tot;
+    rc->value +=    cnd*(rc->range - rscaled*(p_tot - b));
+    rc->range  = (!cnd)*(rc->range - rscaled*(p_tot - p)) + cnd*rscaled*(p - b);
+    opus_rc_enc_normalize(rc);
+}
+
+uint32_t ff_opus_rc_dec_cdf(OpusRangeCoder *rc, const uint16_t *cdf)
+{
+    unsigned int k, scale, total, symbol, low, high;
+
+    total = *cdf++;
+
+    scale   = rc->range / total;
+    symbol = rc->value / scale + 1;
+    symbol = total - FFMIN(symbol, total);
+
+    for (k = 0; cdf[k] <= symbol; k++);
+    high = cdf[k];
+    low  = k ? cdf[k-1] : 0;
+
+    opus_rc_dec_update(rc, scale, low, high, total);
+
+    return k;
+}
+
+void ff_opus_rc_enc_cdf(OpusRangeCoder *rc, int val, const uint16_t *cdf)
+{
+    opus_rc_enc_update(rc, (!!val)*cdf[val], cdf[val + 1], cdf[0], 1);
+}
+
+uint32_t ff_opus_rc_dec_log(OpusRangeCoder *rc, uint32_t bits)
+{
+    uint32_t k, scale;
+    scale = rc->range >> bits; // in this case, scale = symbol
+
+    if (rc->value >= scale) {
+        rc->value -= scale;
+        rc->range -= scale;
+        k = 0;
+    } else {
+        rc->range = scale;
+        k = 1;
+    }
+    opus_rc_dec_normalize(rc);
+    return k;
+}
+
+void ff_opus_rc_enc_log(OpusRangeCoder *rc, int val, uint32_t bits)
+{
+    bits = (1 << bits) - 1;
+    opus_rc_enc_update(rc, (!!val)*bits, bits + !!val, bits + 1, 1);
+}
+
+/**
+ * CELT: read 1-25 raw bits at the end of the frame, backwards byte-wise
+ */
+uint32_t ff_opus_rc_get_raw(OpusRangeCoder *rc, uint32_t count)
+{
+    uint32_t value = 0;
+
+    while (rc->rb.bytes && rc->rb.cachelen < count) {
+        rc->rb.cacheval |= *--rc->rb.position << rc->rb.cachelen;
+        rc->rb.cachelen += 8;
+        rc->rb.bytes--;
+    }
+
+    value = av_mod_uintp2(rc->rb.cacheval, count);
+    rc->rb.cacheval    >>= count;
+    rc->rb.cachelen     -= count;
+    rc->total_bits      += count;
+
+    return value;
+}
+
+/**
+ * CELT: write 0 - 31 bits to the rawbits buffer
+ */
+void ff_opus_rc_put_raw(OpusRangeCoder *rc, uint32_t val, uint32_t count)
+{
+    const int to_write = FFMIN(32 - rc->rb.cachelen, count);
+
+    rc->total_bits += count;
+    rc->rb.cacheval |= av_mod_uintp2(val, to_write) << rc->rb.cachelen;
+    rc->rb.cachelen = (rc->rb.cachelen + to_write) % 32;
+
+    if (!rc->rb.cachelen && count) {
+        AV_WB32((uint8_t *)rc->rb.position, rc->rb.cacheval);
+        rc->rb.bytes    += 4;
+        rc->rb.position -= 4;
+        rc->rb.cachelen = count - to_write;
+        rc->rb.cacheval = av_mod_uintp2(val >> to_write, rc->rb.cachelen);
+        av_assert0(rc->rng_cur < rc->rb.position);
+    }
+}
+
+/**
+ * CELT: read a uniform distribution
+ */
+uint32_t ff_opus_rc_dec_uint(OpusRangeCoder *rc, uint32_t size)
+{
+    uint32_t bits, k, scale, total;
+
+    bits  = opus_ilog(size - 1);
+    total = (bits > 8) ? ((size - 1) >> (bits - 8)) + 1 : size;
+
+    scale  = rc->range / total;
+    k      = rc->value / scale + 1;
+    k      = total - FFMIN(k, total);
+    opus_rc_dec_update(rc, scale, k, k + 1, total);
+
+    if (bits > 8) {
+        k = k << (bits - 8) | ff_opus_rc_get_raw(rc, bits - 8);
+        return FFMIN(k, size - 1);
+    } else
+        return k;
+}
+
+/**
+ * CELT: write a uniformly distributed integer
+ */
+void ff_opus_rc_enc_uint(OpusRangeCoder *rc, uint32_t val, uint32_t size)
+{
+    const int ps = FFMAX(opus_ilog(size - 1) - 8, 0);
+    opus_rc_enc_update(rc, val >> ps, (val >> ps) + 1, ((size - 1) >> ps) + 1, 0);
+    ff_opus_rc_put_raw(rc, val, ps);
+}
+
+uint32_t ff_opus_rc_dec_uint_step(OpusRangeCoder *rc, int k0)
+{
+    /* Use a probability of 3 up to itheta=8192 and then use 1 after */
+    uint32_t k, scale, symbol, total = (k0+1)*3 + k0;
+    scale  = rc->range / total;
+    symbol = rc->value / scale + 1;
+    symbol = total - FFMIN(symbol, total);
+
+    k = (symbol < (k0+1)*3) ? symbol/3 : symbol - (k0+1)*2;
+
+    opus_rc_dec_update(rc, scale, (k <= k0) ? 3*(k+0) : (k-1-k0) + 3*(k0+1),
+                       (k <= k0) ? 3*(k+1) : (k-0-k0) + 3*(k0+1), total);
+    return k;
+}
+
+void ff_opus_rc_enc_uint_step(OpusRangeCoder *rc, uint32_t val, int k0)
+{
+    const uint32_t a = val <= k0, b = 2*a + 1;
+    k0 = (k0 + 1) << 1;
+    val = b*(val + k0) - 3*a*k0;
+    opus_rc_enc_update(rc, val, val + b, (k0 << 1) - 1, 0);
+}
+
+uint32_t ff_opus_rc_dec_uint_tri(OpusRangeCoder *rc, int qn)
+{
+    uint32_t k, scale, symbol, total, low, center;
+
+    total = ((qn>>1) + 1) * ((qn>>1) + 1);
+    scale   = rc->range / total;
+    center = rc->value / scale + 1;
+    center = total - FFMIN(center, total);
+
+    if (center < total >> 1) {
+        k      = (ff_sqrt(8 * center + 1) - 1) >> 1;
+        low    = k * (k + 1) >> 1;
+        symbol = k + 1;
+    } else {
+        k      = (2*(qn + 1) - ff_sqrt(8*(total - center - 1) + 1)) >> 1;
+        low    = total - ((qn + 1 - k) * (qn + 2 - k) >> 1);
+        symbol = qn + 1 - k;
+    }
+
+    opus_rc_dec_update(rc, scale, low, low + symbol, total);
+
+    return k;
+}
+
+void ff_opus_rc_enc_uint_tri(OpusRangeCoder *rc, uint32_t k, int qn)
+{
+    uint32_t symbol, low, total;
+
+    total = ((qn>>1) + 1) * ((qn>>1) + 1);
+
+    if (k <= qn >> 1) {
+        low    = k * (k + 1) >> 1;
+        symbol = k + 1;
+    } else {
+        low    = total - ((qn + 1 - k) * (qn + 2 - k) >> 1);
+        symbol = qn + 1 - k;
+    }
+
+    opus_rc_enc_update(rc, low, low + symbol, total, 0);
+}
+
+int ff_opus_rc_dec_laplace(OpusRangeCoder *rc, uint32_t symbol, int decay)
+{
+    /* extends the range coder to model a Laplace distribution */
+    int value = 0;
+    uint32_t scale, low = 0, center;
+
+    scale  = rc->range >> 15;
+    center = rc->value / scale + 1;
+    center = (1 << 15) - FFMIN(center, 1 << 15);
+
+    if (center >= symbol) {
+        value++;
+        low = symbol;
+        symbol = 1 + ((32768 - 32 - symbol) * (16384-decay) >> 15);
+
+        while (symbol > 1 && center >= low + 2 * symbol) {
+            value++;
+            symbol *= 2;
+            low    += symbol;
+            symbol  = (((symbol - 2) * decay) >> 15) + 1;
+        }
+
+        if (symbol <= 1) {
+            int distance = (center - low) >> 1;
+            value += distance;
+            low   += 2 * distance;
+        }
+
+        if (center < low + symbol)
+            value *= -1;
+        else
+            low += symbol;
+    }
+
+    opus_rc_dec_update(rc, scale, low, FFMIN(low + symbol, 32768), 32768);
+
+    return value;
+}
+
+void ff_opus_rc_enc_laplace(OpusRangeCoder *rc, int *value, uint32_t symbol, int decay)
+{
+    uint32_t low = symbol;
+    int i = 1, val = FFABS(*value), pos = *value > 0;
+    if (!val) {
+        opus_rc_enc_update(rc, 0, symbol, 1 << 15, 1);
+        return;
+    }
+    symbol = ((32768 - 32 - symbol)*(16384 - decay)) >> 15;
+    for (; i < val && symbol; i++) {
+        low   += (symbol << 1) + 2;
+        symbol = (symbol*decay) >> 14;
+    }
+    if (symbol) {
+        low += (++symbol)*pos;
+    } else {
+        const int distance = FFMIN(val - i, (((32768 - low) - !pos) >> 1) - 1);
+        low   += pos + (distance << 1);
+        symbol = FFMIN(1, 32768 - low);
+        *value = FFSIGN(*value)*(distance + i);
+    }
+    opus_rc_enc_update(rc, low, low + symbol, 1 << 15, 1);
+}
+
+int ff_opus_rc_dec_init(OpusRangeCoder *rc, const uint8_t *data, int size)
+{
+    int ret = init_get_bits8(&rc->gb, data, size);
+    if (ret < 0)
+        return ret;
+
+    rc->range = 128;
+    rc->value = 127 - get_bits(&rc->gb, 7);
+    rc->total_bits = 9;
+    opus_rc_dec_normalize(rc);
+
+    return 0;
+}
+
+void ff_opus_rc_dec_raw_init(OpusRangeCoder *rc, const uint8_t *rightend, uint32_t bytes)
+{
+    rc->rb.position = rightend;
+    rc->rb.bytes    = bytes;
+    rc->rb.cachelen = 0;
+    rc->rb.cacheval = 0;
+}
+
+void ff_opus_rc_enc_end(OpusRangeCoder *rc, uint8_t *dst, int size)
+{
+    int rng_bytes, bits = OPUS_RC_BITS - opus_ilog(rc->range);
+    uint32_t mask = (OPUS_RC_TOP - 1) >> bits;
+    uint32_t end = (rc->value + mask) & ~mask;
+
+    if ((end | mask) >= rc->value + rc->range) {
+        bits++;
+        mask >>= 1;
+        end = (rc->value + mask) & ~mask;
+    }
+
+    /* Finish what's left */
+    while (bits > 0) {
+        opus_rc_enc_carryout(rc, end >> OPUS_RC_SHIFT);
+        end = (end << OPUS_RC_SYM) & (OPUS_RC_TOP - 1);
+        bits -= OPUS_RC_SYM;
+    }
+
+    /* Flush out anything left or marked */
+    if (rc->rem >= 0 || rc->ext > 0)
+        opus_rc_enc_carryout(rc, 0);
+
+    rng_bytes = rc->rng_cur - rc->buf;
+    memcpy(dst, rc->buf, rng_bytes);
+
+    rc->waste = size*8 - (rc->rb.bytes*8 + rc->rb.cachelen) - rng_bytes*8;
+
+    /* Put the rawbits part, if any */
+    if (rc->rb.bytes || rc->rb.cachelen) {
+        int i, lap;
+        uint8_t *rb_src, *rb_dst;
+        ff_opus_rc_put_raw(rc, 0, 32 - rc->rb.cachelen);
+        rb_src = rc->buf + OPUS_MAX_PACKET_SIZE + 12 - rc->rb.bytes;
+        rb_dst = dst + FFMAX(size - rc->rb.bytes, 0);
+        lap = &dst[rng_bytes] - rb_dst;
+        for (i = 0; i < lap; i++)
+            rb_dst[i] |= rb_src[i];
+        memcpy(&rb_dst[lap], &rb_src[lap], FFMAX(rc->rb.bytes - lap, 0));
+    }
+}
+
+void ff_opus_rc_enc_init(OpusRangeCoder *rc)
+{
+    rc->value = 0;
+    rc->range = OPUS_RC_TOP;
+    rc->total_bits = OPUS_RC_BITS + 1;
+    rc->rem = -1;
+    rc->ext =  0;
+    rc->rng_cur = rc->buf;
+    ff_opus_rc_dec_raw_init(rc, rc->buf + OPUS_MAX_PACKET_SIZE + 8, 0);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_rc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_rc.h
new file mode 100644
index 000000000..627f83229
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opus_rc.h
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2012 Andrew D'Addesio
+ * Copyright (c) 2013-2014 Mozilla Corporation
+ * Copyright (c) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_OPUS_RC_H
+#define AVCODEC_OPUS_RC_H
+
+#include <stdint.h>
+#include "get_bits.h"
+
+#define OPUS_MAX_PACKET_SIZE 1275
+
+#define opus_ilog(i) (av_log2(i) + !!(i))
+
+typedef struct RawBitsContext {
+    const uint8_t *position;
+    uint32_t bytes;
+    uint32_t cachelen;
+    uint32_t cacheval;
+} RawBitsContext;
+
+typedef struct OpusRangeCoder {
+    GetBitContext gb;
+    RawBitsContext rb;
+    uint32_t range;
+    uint32_t value;
+    uint32_t total_bits;
+
+    /* Encoder */
+    uint8_t buf[OPUS_MAX_PACKET_SIZE + 12]; /* memcpy vs (memmove + overreading) */
+    uint8_t *rng_cur;                      /* Current range coded byte */
+    int ext;                               /* Awaiting propagation */
+    int rem;                               /* Carryout flag */
+
+    /* Encoding stats */
+    int waste;
+} OpusRangeCoder;
+
+/**
+ * CELT: estimate bits of entropy that have thus far been consumed for the
+ *       current CELT frame, to integer and fractional (1/8th bit) precision
+ */
+static av_always_inline uint32_t opus_rc_tell(const OpusRangeCoder *rc)
+{
+    return rc->total_bits - av_log2(rc->range) - 1;
+}
+
+static av_always_inline uint32_t opus_rc_tell_frac(const OpusRangeCoder *rc)
+{
+    uint32_t i, total_bits, rcbuffer, range;
+
+    total_bits = rc->total_bits << 3;
+    rcbuffer   = av_log2(rc->range) + 1;
+    range      = rc->range >> (rcbuffer-16);
+
+    for (i = 0; i < 3; i++) {
+        int bit;
+        range = range * range >> 15;
+        bit = range >> 16;
+        rcbuffer = rcbuffer << 1 | bit;
+        range >>= bit;
+    }
+
+    return total_bits - rcbuffer;
+}
+
+uint32_t ff_opus_rc_dec_cdf(OpusRangeCoder *rc, const uint16_t *cdf);
+void     ff_opus_rc_enc_cdf(OpusRangeCoder *rc, int val, const uint16_t *cdf);
+
+uint32_t ff_opus_rc_dec_log(OpusRangeCoder *rc, uint32_t bits);
+void     ff_opus_rc_enc_log(OpusRangeCoder *rc, int val, uint32_t bits);
+
+uint32_t ff_opus_rc_dec_uint_step(OpusRangeCoder *rc, int k0);
+void     ff_opus_rc_enc_uint_step(OpusRangeCoder *rc, uint32_t val, int k0);
+
+uint32_t ff_opus_rc_dec_uint_tri(OpusRangeCoder *rc, int qn);
+void     ff_opus_rc_enc_uint_tri(OpusRangeCoder *rc, uint32_t k, int qn);
+
+uint32_t ff_opus_rc_dec_uint(OpusRangeCoder *rc, uint32_t size);
+void     ff_opus_rc_enc_uint(OpusRangeCoder *rc, uint32_t val, uint32_t size);
+
+uint32_t ff_opus_rc_get_raw(OpusRangeCoder *rc, uint32_t count);
+void     ff_opus_rc_put_raw(OpusRangeCoder *rc, uint32_t val, uint32_t count);
+
+int      ff_opus_rc_dec_laplace(OpusRangeCoder *rc, uint32_t symbol, int decay);
+void     ff_opus_rc_enc_laplace(OpusRangeCoder *rc, int *value, uint32_t symbol, int decay);
+
+int      ff_opus_rc_dec_init(OpusRangeCoder *rc, const uint8_t *data, int size);
+void     ff_opus_rc_dec_raw_init(OpusRangeCoder *rc, const uint8_t *rightend, uint32_t bytes);
+
+void     ff_opus_rc_enc_end(OpusRangeCoder *rc, uint8_t *dst, int size);
+void     ff_opus_rc_enc_init(OpusRangeCoder *rc);
+
+#define OPUS_RC_CHECKPOINT_UPDATE(rc) \
+    rc_rollback_bits = opus_rc_tell_frac(rc); \
+    rc_rollback_ctx  = *rc
+
+#define OPUS_RC_CHECKPOINT_SPAWN(rc) \
+    uint32_t rc_rollback_bits = opus_rc_tell_frac(rc); \
+    OpusRangeCoder rc_rollback_ctx = *rc \
+
+#define OPUS_RC_CHECKPOINT_BITS(rc) \
+    (opus_rc_tell_frac(rc) - rc_rollback_bits)
+
+#define OPUS_RC_CHECKPOINT_ROLLBACK(rc) \
+    memcpy(rc, &rc_rollback_ctx, sizeof(OpusRangeCoder)); \
+
+#endif /* AVCODEC_OPUS_RC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusdsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusdsp.c
new file mode 100644
index 000000000..0e179c98c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusdsp.c
@@ -0,0 +1,67 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "opusdsp.h"
+
+static void postfilter_c(float *data, int period, float *gains, int len)
+{
+    const float g0 = gains[0];
+    const float g1 = gains[1];
+    const float g2 = gains[2];
+
+    float x4 = data[-period - 2];
+    float x3 = data[-period - 1];
+    float x2 = data[-period + 0];
+    float x1 = data[-period + 1];
+
+    for (int i = 0; i < len; i++) {
+        float x0 = data[i - period + 2];
+        data[i] += g0 * x2        +
+                   g1 * (x1 + x3) +
+                   g2 * (x0 + x4);
+        x4 = x3;
+        x3 = x2;
+        x2 = x1;
+        x1 = x0;
+    }
+}
+
+static float deemphasis_c(float *y, float *x, float coeff, int len)
+{
+    float state = coeff;
+
+    for (int i = 0; i < len; i++) {
+        const float tmp = x[i] + state;
+        state = tmp * CELT_EMPH_COEFF;
+        y[i] = tmp;
+    }
+
+    return state;
+}
+
+av_cold void ff_opus_dsp_init(OpusDSP *ctx)
+{
+    ctx->postfilter = postfilter_c;
+    ctx->deemphasis = deemphasis_c;
+
+    if (ARCH_X86)
+        ff_opus_dsp_init_x86(ctx);
+
+    if (ARCH_AARCH64)
+        ff_opus_dsp_init_aarch64(ctx);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusdsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusdsp.h
new file mode 100644
index 000000000..ee3186dd4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusdsp.h
@@ -0,0 +1,36 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_OPUSDSP_H
+#define AVCODEC_OPUSDSP_H
+
+#include "libavutil/common.h"
+
+#define CELT_EMPH_COEFF 0.8500061035f
+
+typedef struct OpusDSP {
+    void (*postfilter)(float *data, int period, float *gains, int len);
+    float (*deemphasis)(float *out, float *in, float coeff, int len);
+} OpusDSP;
+
+void ff_opus_dsp_init(OpusDSP *ctx);
+
+void ff_opus_dsp_init_x86(OpusDSP *ctx);
+void ff_opus_dsp_init_aarch64(OpusDSP *ctx);
+
+#endif /* AVCODEC_OPUSDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc.c
new file mode 100644
index 000000000..3c08ebcf6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc.c
@@ -0,0 +1,738 @@
+/*
+ * Opus encoder
+ * Copyright (c) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "opusenc.h"
+#include "opus_pvq.h"
+#include "opusenc_psy.h"
+#include "opustab.h"
+
+#include "libavutil/float_dsp.h"
+#include "libavutil/opt.h"
+#include "internal.h"
+#include "bytestream.h"
+#include "audio_frame_queue.h"
+
+typedef struct OpusEncContext {
+    AVClass *av_class;
+    OpusEncOptions options;
+    OpusPsyContext psyctx;
+    AVCodecContext *avctx;
+    AudioFrameQueue afq;
+    AVFloatDSPContext *dsp;
+    MDCT15Context *mdct[CELT_BLOCK_NB];
+    CeltPVQ *pvq;
+    struct FFBufQueue bufqueue;
+
+    uint8_t enc_id[64];
+    int enc_id_bits;
+
+    OpusPacketInfo packet;
+
+    int channels;
+
+    CeltFrame *frame;
+    OpusRangeCoder *rc;
+
+    /* Actual energy the decoder will have */
+    float last_quantized_energy[OPUS_MAX_CHANNELS][CELT_MAX_BANDS];
+
+    DECLARE_ALIGNED(32, float, scratch)[2048];
+} OpusEncContext;
+
+static void opus_write_extradata(AVCodecContext *avctx)
+{
+    uint8_t *bs = avctx->extradata;
+
+    bytestream_put_buffer(&bs, "OpusHead", 8);
+    bytestream_put_byte  (&bs, 0x1);
+    bytestream_put_byte  (&bs, avctx->channels);
+    bytestream_put_le16  (&bs, avctx->initial_padding);
+    bytestream_put_le32  (&bs, avctx->sample_rate);
+    bytestream_put_le16  (&bs, 0x0);
+    bytestream_put_byte  (&bs, 0x0); /* Default layout */
+}
+
+static int opus_gen_toc(OpusEncContext *s, uint8_t *toc, int *size, int *fsize_needed)
+{
+    int tmp = 0x0, extended_toc = 0;
+    static const int toc_cfg[][OPUS_MODE_NB][OPUS_BANDWITH_NB] = {
+        /*  Silk                    Hybrid                  Celt                    Layer     */
+        /*  NB  MB  WB SWB  FB      NB  MB  WB SWB  FB      NB  MB  WB SWB  FB      Bandwidth */
+        { {  0,  0,  0,  0,  0 }, {  0,  0,  0,  0,  0 }, { 17,  0, 21, 25, 29 } }, /* 2.5 ms */
+        { {  0,  0,  0,  0,  0 }, {  0,  0,  0,  0,  0 }, { 18,  0, 22, 26, 30 } }, /*   5 ms */
+        { {  1,  5,  9,  0,  0 }, {  0,  0,  0, 13, 15 }, { 19,  0, 23, 27, 31 } }, /*  10 ms */
+        { {  2,  6, 10,  0,  0 }, {  0,  0,  0, 14, 16 }, { 20,  0, 24, 28, 32 } }, /*  20 ms */
+        { {  3,  7, 11,  0,  0 }, {  0,  0,  0,  0,  0 }, {  0,  0,  0,  0,  0 } }, /*  40 ms */
+        { {  4,  8, 12,  0,  0 }, {  0,  0,  0,  0,  0 }, {  0,  0,  0,  0,  0 } }, /*  60 ms */
+    };
+    int cfg = toc_cfg[s->packet.framesize][s->packet.mode][s->packet.bandwidth];
+    *fsize_needed = 0;
+    if (!cfg)
+        return 1;
+    if (s->packet.frames == 2) {                                       /* 2 packets */
+        if (s->frame[0].framebits == s->frame[1].framebits) {          /* same size */
+            tmp = 0x1;
+        } else {                                                  /* different size */
+            tmp = 0x2;
+            *fsize_needed = 1;                     /* put frame sizes in the packet */
+        }
+    } else if (s->packet.frames > 2) {
+        tmp = 0x3;
+        extended_toc = 1;
+    }
+    tmp |= (s->channels > 1) << 2;                                /* Stereo or mono */
+    tmp |= (cfg - 1)         << 3;                           /* codec configuration */
+    *toc++ = tmp;
+    if (extended_toc) {
+        for (int i = 0; i < (s->packet.frames - 1); i++)
+            *fsize_needed |= (s->frame[i].framebits != s->frame[i + 1].framebits);
+        tmp = (*fsize_needed) << 7;                                /* vbr flag */
+        tmp |= (0) << 6;                                       /* padding flag */
+        tmp |= s->packet.frames;
+        *toc++ = tmp;
+    }
+    *size = 1 + extended_toc;
+    return 0;
+}
+
+static void celt_frame_setup_input(OpusEncContext *s, CeltFrame *f)
+{
+    AVFrame *cur = NULL;
+    const int subframesize = s->avctx->frame_size;
+    int subframes = OPUS_BLOCK_SIZE(s->packet.framesize) / subframesize;
+
+    cur = ff_bufqueue_get(&s->bufqueue);
+
+    for (int ch = 0; ch < f->channels; ch++) {
+        CeltBlock *b = &f->block[ch];
+        const void *input = cur->extended_data[ch];
+        size_t bps = av_get_bytes_per_sample(cur->format);
+        memcpy(b->overlap, input, bps*cur->nb_samples);
+    }
+
+    av_frame_free(&cur);
+
+    for (int sf = 0; sf < subframes; sf++) {
+        if (sf != (subframes - 1))
+            cur = ff_bufqueue_get(&s->bufqueue);
+        else
+            cur = ff_bufqueue_peek(&s->bufqueue, 0);
+
+        for (int ch = 0; ch < f->channels; ch++) {
+            CeltBlock *b = &f->block[ch];
+            const void *input = cur->extended_data[ch];
+            const size_t bps  = av_get_bytes_per_sample(cur->format);
+            const size_t left = (subframesize - cur->nb_samples)*bps;
+            const size_t len  = FFMIN(subframesize, cur->nb_samples)*bps;
+            memcpy(&b->samples[sf*subframesize], input, len);
+            memset(&b->samples[cur->nb_samples], 0, left);
+        }
+
+        /* Last frame isn't popped off and freed yet - we need it for overlap */
+        if (sf != (subframes - 1))
+            av_frame_free(&cur);
+    }
+}
+
+/* Apply the pre emphasis filter */
+static void celt_apply_preemph_filter(OpusEncContext *s, CeltFrame *f)
+{
+    const int subframesize = s->avctx->frame_size;
+    const int subframes = OPUS_BLOCK_SIZE(s->packet.framesize) / subframesize;
+
+    /* Filter overlap */
+    for (int ch = 0; ch < f->channels; ch++) {
+        CeltBlock *b = &f->block[ch];
+        float m = b->emph_coeff;
+        for (int i = 0; i < CELT_OVERLAP; i++) {
+            float sample = b->overlap[i];
+            b->overlap[i] = sample - m;
+            m = sample * CELT_EMPH_COEFF;
+        }
+        b->emph_coeff = m;
+    }
+
+    /* Filter the samples but do not update the last subframe's coeff - overlap ^^^ */
+    for (int sf = 0; sf < subframes; sf++) {
+        for (int ch = 0; ch < f->channels; ch++) {
+            CeltBlock *b = &f->block[ch];
+            float m = b->emph_coeff;
+            for (int i = 0; i < subframesize; i++) {
+                float sample = b->samples[sf*subframesize + i];
+                b->samples[sf*subframesize + i] = sample - m;
+                m = sample * CELT_EMPH_COEFF;
+            }
+            if (sf != (subframes - 1))
+                b->emph_coeff = m;
+        }
+    }
+}
+
+/* Create the window and do the mdct */
+static void celt_frame_mdct(OpusEncContext *s, CeltFrame *f)
+{
+    float *win = s->scratch, *temp = s->scratch + 1920;
+
+    if (f->transient) {
+        for (int ch = 0; ch < f->channels; ch++) {
+            CeltBlock *b = &f->block[ch];
+            float *src1 = b->overlap;
+            for (int t = 0; t < f->blocks; t++) {
+                float *src2 = &b->samples[CELT_OVERLAP*t];
+                s->dsp->vector_fmul(win, src1, ff_celt_window, 128);
+                s->dsp->vector_fmul_reverse(&win[CELT_OVERLAP], src2,
+                                            ff_celt_window - 8, 128);
+                src1 = src2;
+                s->mdct[0]->mdct(s->mdct[0], b->coeffs + t, win, f->blocks);
+            }
+        }
+    } else {
+        int blk_len = OPUS_BLOCK_SIZE(f->size), wlen = OPUS_BLOCK_SIZE(f->size + 1);
+        int rwin = blk_len - CELT_OVERLAP, lap_dst = (wlen - blk_len - CELT_OVERLAP) >> 1;
+        memset(win, 0, wlen*sizeof(float));
+        for (int ch = 0; ch < f->channels; ch++) {
+            CeltBlock *b = &f->block[ch];
+
+            /* Overlap */
+            s->dsp->vector_fmul(temp, b->overlap, ff_celt_window, 128);
+            memcpy(win + lap_dst, temp, CELT_OVERLAP*sizeof(float));
+
+            /* Samples, flat top window */
+            memcpy(&win[lap_dst + CELT_OVERLAP], b->samples, rwin*sizeof(float));
+
+            /* Samples, windowed */
+            s->dsp->vector_fmul_reverse(temp, b->samples + rwin,
+                                        ff_celt_window - 8, 128);
+            memcpy(win + lap_dst + blk_len, temp, CELT_OVERLAP*sizeof(float));
+
+            s->mdct[f->size]->mdct(s->mdct[f->size], b->coeffs, win, 1);
+        }
+    }
+
+    for (int ch = 0; ch < f->channels; ch++) {
+        CeltBlock *block = &f->block[ch];
+        for (int i = 0; i < CELT_MAX_BANDS; i++) {
+            float ener = 0.0f;
+            int band_offset = ff_celt_freq_bands[i] << f->size;
+            int band_size   = ff_celt_freq_range[i] << f->size;
+            float *coeffs   = &block->coeffs[band_offset];
+
+            for (int j = 0; j < band_size; j++)
+                ener += coeffs[j]*coeffs[j];
+
+            block->lin_energy[i] = sqrtf(ener) + FLT_EPSILON;
+            ener = 1.0f/block->lin_energy[i];
+
+            for (int j = 0; j < band_size; j++)
+                coeffs[j] *= ener;
+
+            block->energy[i] = log2f(block->lin_energy[i]) - ff_celt_mean_energy[i];
+
+            /* CELT_ENERGY_SILENCE is what the decoder uses and its not -infinity */
+            block->energy[i] = FFMAX(block->energy[i], CELT_ENERGY_SILENCE);
+        }
+    }
+}
+
+static void celt_enc_tf(CeltFrame *f, OpusRangeCoder *rc)
+{
+    int tf_select = 0, diff = 0, tf_changed = 0, tf_select_needed;
+    int bits = f->transient ? 2 : 4;
+
+    tf_select_needed = ((f->size && (opus_rc_tell(rc) + bits + 1) <= f->framebits));
+
+    for (int i = f->start_band; i < f->end_band; i++) {
+        if ((opus_rc_tell(rc) + bits + tf_select_needed) <= f->framebits) {
+            const int tbit = (diff ^ 1) == f->tf_change[i];
+            ff_opus_rc_enc_log(rc, tbit, bits);
+            diff ^= tbit;
+            tf_changed |= diff;
+        }
+        bits = f->transient ? 4 : 5;
+    }
+
+    if (tf_select_needed && ff_celt_tf_select[f->size][f->transient][0][tf_changed] !=
+                            ff_celt_tf_select[f->size][f->transient][1][tf_changed]) {
+        ff_opus_rc_enc_log(rc, f->tf_select, 1);
+        tf_select = f->tf_select;
+    }
+
+    for (int i = f->start_band; i < f->end_band; i++)
+        f->tf_change[i] = ff_celt_tf_select[f->size][f->transient][tf_select][f->tf_change[i]];
+}
+
+static void celt_enc_quant_pfilter(OpusRangeCoder *rc, CeltFrame *f)
+{
+    float gain = f->pf_gain;
+    int txval, octave = f->pf_octave, period = f->pf_period, tapset = f->pf_tapset;
+
+    ff_opus_rc_enc_log(rc, f->pfilter, 1);
+    if (!f->pfilter)
+        return;
+
+    /* Octave */
+    txval = FFMIN(octave, 6);
+    ff_opus_rc_enc_uint(rc, txval, 6);
+    octave = txval;
+    /* Period */
+    txval = av_clip(period - (16 << octave) + 1, 0, (1 << (4 + octave)) - 1);
+    ff_opus_rc_put_raw(rc, period, 4 + octave);
+    period = txval + (16 << octave) - 1;
+    /* Gain */
+    txval = FFMIN(((int)(gain / 0.09375f)) - 1, 7);
+    ff_opus_rc_put_raw(rc, txval, 3);
+    gain   = 0.09375f * (txval + 1);
+    /* Tapset */
+    if ((opus_rc_tell(rc) + 2) <= f->framebits)
+        ff_opus_rc_enc_cdf(rc, tapset, ff_celt_model_tapset);
+    else
+        tapset = 0;
+    /* Finally create the coeffs */
+    for (int i = 0; i < 2; i++) {
+        CeltBlock *block = &f->block[i];
+
+        block->pf_period_new = FFMAX(period, CELT_POSTFILTER_MINPERIOD);
+        block->pf_gains_new[0] = gain * ff_celt_postfilter_taps[tapset][0];
+        block->pf_gains_new[1] = gain * ff_celt_postfilter_taps[tapset][1];
+        block->pf_gains_new[2] = gain * ff_celt_postfilter_taps[tapset][2];
+    }
+}
+
+static void exp_quant_coarse(OpusRangeCoder *rc, CeltFrame *f,
+                             float last_energy[][CELT_MAX_BANDS], int intra)
+{
+    float alpha, beta, prev[2] = { 0, 0 };
+    const uint8_t *pmod = ff_celt_coarse_energy_dist[f->size][intra];
+
+    /* Inter is really just differential coding */
+    if (opus_rc_tell(rc) + 3 <= f->framebits)
+        ff_opus_rc_enc_log(rc, intra, 3);
+    else
+        intra = 0;
+
+    if (intra) {
+        alpha = 0.0f;
+        beta  = 1.0f - (4915.0f/32768.0f);
+    } else {
+        alpha = ff_celt_alpha_coef[f->size];
+        beta  = ff_celt_beta_coef[f->size];
+    }
+
+    for (int i = f->start_band; i < f->end_band; i++) {
+        for (int ch = 0; ch < f->channels; ch++) {
+            CeltBlock *block = &f->block[ch];
+            const int left = f->framebits - opus_rc_tell(rc);
+            const float last = FFMAX(-9.0f, last_energy[ch][i]);
+            float diff = block->energy[i] - prev[ch] - last*alpha;
+            int q_en = lrintf(diff);
+            if (left >= 15) {
+                ff_opus_rc_enc_laplace(rc, &q_en, pmod[i << 1] << 7, pmod[(i << 1) + 1] << 6);
+            } else if (left >= 2) {
+                q_en = av_clip(q_en, -1, 1);
+                ff_opus_rc_enc_cdf(rc, 2*q_en + 3*(q_en < 0), ff_celt_model_energy_small);
+            } else if (left >= 1) {
+                q_en = av_clip(q_en, -1, 0);
+                ff_opus_rc_enc_log(rc, (q_en & 1), 1);
+            } else q_en = -1;
+
+            block->error_energy[i] = q_en - diff;
+            prev[ch] += beta * q_en;
+        }
+    }
+}
+
+static void celt_quant_coarse(CeltFrame *f, OpusRangeCoder *rc,
+                              float last_energy[][CELT_MAX_BANDS])
+{
+    uint32_t inter, intra;
+    OPUS_RC_CHECKPOINT_SPAWN(rc);
+
+    exp_quant_coarse(rc, f, last_energy, 1);
+    intra = OPUS_RC_CHECKPOINT_BITS(rc);
+
+    OPUS_RC_CHECKPOINT_ROLLBACK(rc);
+
+    exp_quant_coarse(rc, f, last_energy, 0);
+    inter = OPUS_RC_CHECKPOINT_BITS(rc);
+
+    if (inter > intra) { /* Unlikely */
+        OPUS_RC_CHECKPOINT_ROLLBACK(rc);
+        exp_quant_coarse(rc, f, last_energy, 1);
+    }
+}
+
+static void celt_quant_fine(CeltFrame *f, OpusRangeCoder *rc)
+{
+    for (int i = f->start_band; i < f->end_band; i++) {
+        if (!f->fine_bits[i])
+            continue;
+        for (int ch = 0; ch < f->channels; ch++) {
+            CeltBlock *block = &f->block[ch];
+            int quant, lim = (1 << f->fine_bits[i]);
+            float offset, diff = 0.5f - block->error_energy[i];
+            quant = av_clip(floor(diff*lim), 0, lim - 1);
+            ff_opus_rc_put_raw(rc, quant, f->fine_bits[i]);
+            offset = 0.5f - ((quant + 0.5f) * (1 << (14 - f->fine_bits[i])) / 16384.0f);
+            block->error_energy[i] -= offset;
+        }
+    }
+}
+
+static void celt_quant_final(OpusEncContext *s, OpusRangeCoder *rc, CeltFrame *f)
+{
+    for (int priority = 0; priority < 2; priority++) {
+        for (int i = f->start_band; i < f->end_band && (f->framebits - opus_rc_tell(rc)) >= f->channels; i++) {
+            if (f->fine_priority[i] != priority || f->fine_bits[i] >= CELT_MAX_FINE_BITS)
+                continue;
+            for (int ch = 0; ch < f->channels; ch++) {
+                CeltBlock *block = &f->block[ch];
+                const float err = block->error_energy[i];
+                const float offset = 0.5f * (1 << (14 - f->fine_bits[i] - 1)) / 16384.0f;
+                const int sign = FFABS(err + offset) < FFABS(err - offset);
+                ff_opus_rc_put_raw(rc, sign, 1);
+                block->error_energy[i] -= offset*(1 - 2*sign);
+            }
+        }
+    }
+}
+
+static void celt_encode_frame(OpusEncContext *s, OpusRangeCoder *rc,
+                              CeltFrame *f, int index)
+{
+    ff_opus_rc_enc_init(rc);
+
+    ff_opus_psy_celt_frame_init(&s->psyctx, f, index);
+
+    celt_frame_setup_input(s, f);
+
+    if (f->silence) {
+        if (f->framebits >= 16)
+            ff_opus_rc_enc_log(rc, 1, 15); /* Silence (if using explicit singalling) */
+        for (int ch = 0; ch < s->channels; ch++)
+            memset(s->last_quantized_energy[ch], 0.0f, sizeof(float)*CELT_MAX_BANDS);
+        return;
+    }
+
+    /* Filters */
+    celt_apply_preemph_filter(s, f);
+    if (f->pfilter) {
+        ff_opus_rc_enc_log(rc, 0, 15);
+        celt_enc_quant_pfilter(rc, f);
+    }
+
+    /* Transform */
+    celt_frame_mdct(s, f);
+
+    /* Need to handle transient/non-transient switches at any point during analysis */
+    while (ff_opus_psy_celt_frame_process(&s->psyctx, f, index))
+        celt_frame_mdct(s, f);
+
+    ff_opus_rc_enc_init(rc);
+
+    /* Silence */
+    ff_opus_rc_enc_log(rc, 0, 15);
+
+    /* Pitch filter */
+    if (!f->start_band && opus_rc_tell(rc) + 16 <= f->framebits)
+        celt_enc_quant_pfilter(rc, f);
+
+    /* Transient flag */
+    if (f->size && opus_rc_tell(rc) + 3 <= f->framebits)
+        ff_opus_rc_enc_log(rc, f->transient, 3);
+
+    /* Main encoding */
+    celt_quant_coarse  (f, rc, s->last_quantized_energy);
+    celt_enc_tf        (f, rc);
+    ff_celt_bitalloc   (f, rc, 1);
+    celt_quant_fine    (f, rc);
+    ff_celt_quant_bands(f, rc);
+
+    /* Anticollapse bit */
+    if (f->anticollapse_needed)
+        ff_opus_rc_put_raw(rc, f->anticollapse, 1);
+
+    /* Final per-band energy adjustments from leftover bits */
+    celt_quant_final(s, rc, f);
+
+    for (int ch = 0; ch < f->channels; ch++) {
+        CeltBlock *block = &f->block[ch];
+        for (int i = 0; i < CELT_MAX_BANDS; i++)
+            s->last_quantized_energy[ch][i] = block->energy[i] + block->error_energy[i];
+    }
+}
+
+static inline int write_opuslacing(uint8_t *dst, int v)
+{
+    dst[0] = FFMIN(v - FFALIGN(v - 255, 4), v);
+    dst[1] = v - dst[0] >> 2;
+    return 1 + (v >= 252);
+}
+
+static void opus_packet_assembler(OpusEncContext *s, AVPacket *avpkt)
+{
+    int offset, fsize_needed;
+
+    /* Write toc */
+    opus_gen_toc(s, avpkt->data, &offset, &fsize_needed);
+
+    /* Frame sizes if needed */
+    if (fsize_needed) {
+        for (int i = 0; i < s->packet.frames - 1; i++) {
+            offset += write_opuslacing(avpkt->data + offset,
+                                       s->frame[i].framebits >> 3);
+        }
+    }
+
+    /* Packets */
+    for (int i = 0; i < s->packet.frames; i++) {
+        ff_opus_rc_enc_end(&s->rc[i], avpkt->data + offset,
+                           s->frame[i].framebits >> 3);
+        offset += s->frame[i].framebits >> 3;
+    }
+
+    avpkt->size = offset;
+}
+
+/* Used as overlap for the first frame and padding for the last encoded packet */
+static AVFrame *spawn_empty_frame(OpusEncContext *s)
+{
+    AVFrame *f = av_frame_alloc();
+    if (!f)
+        return NULL;
+    f->format         = s->avctx->sample_fmt;
+    f->nb_samples     = s->avctx->frame_size;
+    f->channel_layout = s->avctx->channel_layout;
+    if (av_frame_get_buffer(f, 4)) {
+        av_frame_free(&f);
+        return NULL;
+    }
+    for (int i = 0; i < s->channels; i++) {
+        size_t bps = av_get_bytes_per_sample(f->format);
+        memset(f->extended_data[i], 0, bps*f->nb_samples);
+    }
+    return f;
+}
+
+static int opus_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
+                             const AVFrame *frame, int *got_packet_ptr)
+{
+    OpusEncContext *s = avctx->priv_data;
+    int ret, frame_size, alloc_size = 0;
+
+    if (frame) { /* Add new frame to queue */
+        if ((ret = ff_af_queue_add(&s->afq, frame)) < 0)
+            return ret;
+        ff_bufqueue_add(avctx, &s->bufqueue, av_frame_clone(frame));
+    } else {
+        ff_opus_psy_signal_eof(&s->psyctx);
+        if (!s->afq.remaining_samples || !avctx->frame_number)
+            return 0; /* We've been flushed and there's nothing left to encode */
+    }
+
+    /* Run the psychoacoustic system */
+    if (ff_opus_psy_process(&s->psyctx, &s->packet))
+        return 0;
+
+    frame_size = OPUS_BLOCK_SIZE(s->packet.framesize);
+
+    if (!frame) {
+        /* This can go negative, that's not a problem, we only pad if positive */
+        int pad_empty = s->packet.frames*(frame_size/s->avctx->frame_size) - s->bufqueue.available + 1;
+        /* Pad with empty 2.5 ms frames to whatever framesize was decided,
+         * this should only happen at the very last flush frame. The frames
+         * allocated here will be freed (because they have no other references)
+         * after they get used by celt_frame_setup_input() */
+        for (int i = 0; i < pad_empty; i++) {
+            AVFrame *empty = spawn_empty_frame(s);
+            if (!empty)
+                return AVERROR(ENOMEM);
+            ff_bufqueue_add(avctx, &s->bufqueue, empty);
+        }
+    }
+
+    for (int i = 0; i < s->packet.frames; i++) {
+        celt_encode_frame(s, &s->rc[i], &s->frame[i], i);
+        alloc_size += s->frame[i].framebits >> 3;
+    }
+
+    /* Worst case toc + the frame lengths if needed */
+    alloc_size += 2 + s->packet.frames*2;
+
+    if ((ret = ff_alloc_packet2(avctx, avpkt, alloc_size, 0)) < 0)
+        return ret;
+
+    /* Assemble packet */
+    opus_packet_assembler(s, avpkt);
+
+    /* Update the psychoacoustic system */
+    ff_opus_psy_postencode_update(&s->psyctx, s->frame, s->rc);
+
+    /* Remove samples from queue and skip if needed */
+    ff_af_queue_remove(&s->afq, s->packet.frames*frame_size, &avpkt->pts, &avpkt->duration);
+    if (s->packet.frames*frame_size > avpkt->duration) {
+        uint8_t *side = av_packet_new_side_data(avpkt, AV_PKT_DATA_SKIP_SAMPLES, 10);
+        if (!side)
+            return AVERROR(ENOMEM);
+        AV_WL32(&side[4], s->packet.frames*frame_size - avpkt->duration + 120);
+    }
+
+    *got_packet_ptr = 1;
+
+    return 0;
+}
+
+static av_cold int opus_encode_end(AVCodecContext *avctx)
+{
+    OpusEncContext *s = avctx->priv_data;
+
+    for (int i = 0; i < CELT_BLOCK_NB; i++)
+        ff_mdct15_uninit(&s->mdct[i]);
+
+    ff_celt_pvq_uninit(&s->pvq);
+    av_freep(&s->dsp);
+    av_freep(&s->frame);
+    av_freep(&s->rc);
+    ff_af_queue_close(&s->afq);
+    ff_opus_psy_end(&s->psyctx);
+    ff_bufqueue_discard_all(&s->bufqueue);
+    av_freep(&avctx->extradata);
+
+    return 0;
+}
+
+static av_cold int opus_encode_init(AVCodecContext *avctx)
+{
+    int ret, max_frames;
+    OpusEncContext *s = avctx->priv_data;
+
+    s->avctx = avctx;
+    s->channels = avctx->channels;
+
+    /* Opus allows us to change the framesize on each packet (and each packet may
+     * have multiple frames in it) but we can't change the codec's frame size on
+     * runtime, so fix it to the lowest possible number of samples and use a queue
+     * to accumulate AVFrames until we have enough to encode whatever the encoder
+     * decides is the best */
+    avctx->frame_size = 120;
+    /* Initial padding will change if SILK is ever supported */
+    avctx->initial_padding = 120;
+
+    if (!avctx->bit_rate) {
+        int coupled = ff_opus_default_coupled_streams[s->channels - 1];
+        avctx->bit_rate = coupled*(96000) + (s->channels - coupled*2)*(48000);
+    } else if (avctx->bit_rate < 6000 || avctx->bit_rate > 255000 * s->channels) {
+        int64_t clipped_rate = av_clip(avctx->bit_rate, 6000, 255000 * s->channels);
+        av_log(avctx, AV_LOG_ERROR, "Unsupported bitrate %"PRId64" kbps, clipping to %"PRId64" kbps\n",
+               avctx->bit_rate/1000, clipped_rate/1000);
+        avctx->bit_rate = clipped_rate;
+    }
+
+    /* Extradata */
+    avctx->extradata_size = 19;
+    avctx->extradata = av_malloc(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+    if (!avctx->extradata)
+        return AVERROR(ENOMEM);
+    opus_write_extradata(avctx);
+
+    ff_af_queue_init(avctx, &s->afq);
+
+    if ((ret = ff_celt_pvq_init(&s->pvq, 1)) < 0)
+        return ret;
+
+    if (!(s->dsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT)))
+        return AVERROR(ENOMEM);
+
+    /* I have no idea why a base scaling factor of 68 works, could be the twiddles */
+    for (int i = 0; i < CELT_BLOCK_NB; i++)
+        if ((ret = ff_mdct15_init(&s->mdct[i], 0, i + 3, 68 << (CELT_BLOCK_NB - 1 - i))))
+            return AVERROR(ENOMEM);
+
+    /* Zero out previous energy (matters for inter first frame) */
+    for (int ch = 0; ch < s->channels; ch++)
+        memset(s->last_quantized_energy[ch], 0.0f, sizeof(float)*CELT_MAX_BANDS);
+
+    /* Allocate an empty frame to use as overlap for the first frame of audio */
+    ff_bufqueue_add(avctx, &s->bufqueue, spawn_empty_frame(s));
+    if (!ff_bufqueue_peek(&s->bufqueue, 0))
+        return AVERROR(ENOMEM);
+
+    if ((ret = ff_opus_psy_init(&s->psyctx, s->avctx, &s->bufqueue, &s->options)))
+        return ret;
+
+    /* Frame structs and range coder buffers */
+    max_frames = ceilf(FFMIN(s->options.max_delay_ms, 120.0f)/2.5f);
+    s->frame = av_malloc(max_frames*sizeof(CeltFrame));
+    if (!s->frame)
+        return AVERROR(ENOMEM);
+    s->rc = av_malloc(max_frames*sizeof(OpusRangeCoder));
+    if (!s->rc)
+        return AVERROR(ENOMEM);
+
+    for (int i = 0; i < max_frames; i++) {
+        s->frame[i].dsp = s->dsp;
+        s->frame[i].avctx = s->avctx;
+        s->frame[i].seed = 0;
+        s->frame[i].pvq = s->pvq;
+        s->frame[i].apply_phase_inv = 1;
+        s->frame[i].block[0].emph_coeff = s->frame[i].block[1].emph_coeff = 0.0f;
+    }
+
+    return 0;
+}
+
+#define OPUSENC_FLAGS AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM
+static const AVOption opusenc_options[] = {
+    { "opus_delay", "Maximum delay in milliseconds", offsetof(OpusEncContext, options.max_delay_ms), AV_OPT_TYPE_FLOAT, { .dbl = OPUS_MAX_LOOKAHEAD }, 2.5f, OPUS_MAX_LOOKAHEAD, OPUSENC_FLAGS, "max_delay_ms" },
+    { NULL },
+};
+
+static const AVClass opusenc_class = {
+    .class_name = "Opus encoder",
+    .item_name  = av_default_item_name,
+    .option     = opusenc_options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+static const AVCodecDefault opusenc_defaults[] = {
+    { "b", "0" },
+    { "compression_level", "10" },
+    { NULL },
+};
+
+AVCodec ff_opus_encoder = {
+    .name           = "opus",
+    .long_name      = NULL_IF_CONFIG_SMALL("Opus"),
+    .type           = AVMEDIA_TYPE_AUDIO,
+    .id             = AV_CODEC_ID_OPUS,
+    .defaults       = opusenc_defaults,
+    .priv_class     = &opusenc_class,
+    .priv_data_size = sizeof(OpusEncContext),
+    .init           = opus_encode_init,
+    .encode2        = opus_encode_frame,
+    .close          = opus_encode_end,
+    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
+    .capabilities   = AV_CODEC_CAP_EXPERIMENTAL | AV_CODEC_CAP_SMALL_LAST_FRAME | AV_CODEC_CAP_DELAY,
+    .supported_samplerates = (const int []){ 48000, 0 },
+    .channel_layouts = (const uint64_t []){ AV_CH_LAYOUT_MONO,
+                                            AV_CH_LAYOUT_STEREO, 0 },
+    .sample_fmts    = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLTP,
+                                                     AV_SAMPLE_FMT_NONE },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc.h
new file mode 100644
index 000000000..b9162ebec
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc.h
@@ -0,0 +1,54 @@
+/*
+ * Opus encoder
+ * Copyright (c) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_OPUSENC_H
+#define AVCODEC_OPUSENC_H
+
+#include "internal.h"
+#include "opus_celt.h"
+
+/* Determines the maximum delay the psychoacoustic system will use for lookahead */
+#define FF_BUFQUEUE_SIZE 145
+#include "libavfilter/bufferqueue.h"
+
+#define OPUS_MAX_LOOKAHEAD ((FF_BUFQUEUE_SIZE - 1)*2.5f)
+
+#define OPUS_MAX_CHANNELS 2
+
+/* 120 ms / 2.5 ms = 48 frames (extremely improbable, but the encoder'll work) */
+#define OPUS_MAX_FRAMES_PER_PACKET 48
+
+#define OPUS_BLOCK_SIZE(x) (2 * 15 * (1 << ((x) + 2)))
+
+#define OPUS_SAMPLES_TO_BLOCK_SIZE(x) (ff_log2((x) / (2 * 15)) - 2)
+
+typedef struct OpusEncOptions {
+    float max_delay_ms;
+} OpusEncOptions;
+
+typedef struct OpusPacketInfo {
+    enum OpusMode mode;
+    enum OpusBandwidth bandwidth;
+    int framesize;
+    int frames;
+} OpusPacketInfo;
+
+#endif /* AVCODEC_OPUSENC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc_psy.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc_psy.c
new file mode 100644
index 000000000..5a50db942
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc_psy.c
@@ -0,0 +1,612 @@
+/*
+ * Opus encoder
+ * Copyright (c) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "opusenc_psy.h"
+#include "opus_pvq.h"
+#include "opustab.h"
+#include "mdct15.h"
+#include "libavutil/qsort.h"
+
+static float pvq_band_cost(CeltPVQ *pvq, CeltFrame *f, OpusRangeCoder *rc, int band,
+                           float *bits, float lambda)
+{
+    int i, b = 0;
+    uint32_t cm[2] = { (1 << f->blocks) - 1, (1 << f->blocks) - 1 };
+    const int band_size = ff_celt_freq_range[band] << f->size;
+    float buf[176 * 2], lowband_scratch[176], norm1[176], norm2[176];
+    float dist, cost, err_x = 0.0f, err_y = 0.0f;
+    float *X = buf;
+    float *X_orig = f->block[0].coeffs + (ff_celt_freq_bands[band] << f->size);
+    float *Y = (f->channels == 2) ? &buf[176] : NULL;
+    float *Y_orig = f->block[1].coeffs + (ff_celt_freq_bands[band] << f->size);
+    OPUS_RC_CHECKPOINT_SPAWN(rc);
+
+    memcpy(X, X_orig, band_size*sizeof(float));
+    if (Y)
+        memcpy(Y, Y_orig, band_size*sizeof(float));
+
+    f->remaining2 = ((f->framebits << 3) - f->anticollapse_needed) - opus_rc_tell_frac(rc) - 1;
+    if (band <= f->coded_bands - 1) {
+        int curr_balance = f->remaining / FFMIN(3, f->coded_bands - band);
+        b = av_clip_uintp2(FFMIN(f->remaining2 + 1, f->pulses[band] + curr_balance), 14);
+    }
+
+    if (f->dual_stereo) {
+        pvq->quant_band(pvq, f, rc, band, X, NULL, band_size, b / 2, f->blocks, NULL,
+                        f->size, norm1, 0, 1.0f, lowband_scratch, cm[0]);
+
+        pvq->quant_band(pvq, f, rc, band, Y, NULL, band_size, b / 2, f->blocks, NULL,
+                        f->size, norm2, 0, 1.0f, lowband_scratch, cm[1]);
+    } else {
+        pvq->quant_band(pvq, f, rc, band, X, Y, band_size, b, f->blocks, NULL, f->size,
+                        norm1, 0, 1.0f, lowband_scratch, cm[0] | cm[1]);
+    }
+
+    for (i = 0; i < band_size; i++) {
+        err_x += (X[i] - X_orig[i])*(X[i] - X_orig[i]);
+        if (Y)
+            err_y += (Y[i] - Y_orig[i])*(Y[i] - Y_orig[i]);
+    }
+
+    dist = sqrtf(err_x) + sqrtf(err_y);
+    cost = OPUS_RC_CHECKPOINT_BITS(rc)/8.0f;
+    *bits += cost;
+
+    OPUS_RC_CHECKPOINT_ROLLBACK(rc);
+
+    return lambda*dist*cost;
+}
+
+/* Populate metrics without taking into consideration neighbouring steps */
+static void step_collect_psy_metrics(OpusPsyContext *s, int index)
+{
+    int silence = 0, ch, i, j;
+    OpusPsyStep *st = s->steps[index];
+
+    st->index = index;
+
+    for (ch = 0; ch < s->avctx->channels; ch++) {
+        const int lap_size = (1 << s->bsize_analysis);
+        for (i = 1; i <= FFMIN(lap_size, index); i++) {
+            const int offset = i*120;
+            AVFrame *cur = ff_bufqueue_peek(s->bufqueue, index - i);
+            memcpy(&s->scratch[offset], cur->extended_data[ch], cur->nb_samples*sizeof(float));
+        }
+        for (i = 0; i < lap_size; i++) {
+            const int offset = i*120 + lap_size;
+            AVFrame *cur = ff_bufqueue_peek(s->bufqueue, index + i);
+            memcpy(&s->scratch[offset], cur->extended_data[ch], cur->nb_samples*sizeof(float));
+        }
+
+        s->dsp->vector_fmul(s->scratch, s->scratch, s->window[s->bsize_analysis],
+                            (OPUS_BLOCK_SIZE(s->bsize_analysis) << 1));
+
+        s->mdct[s->bsize_analysis]->mdct(s->mdct[s->bsize_analysis], st->coeffs[ch], s->scratch, 1);
+
+        for (i = 0; i < CELT_MAX_BANDS; i++)
+            st->bands[ch][i] = &st->coeffs[ch][ff_celt_freq_bands[i] << s->bsize_analysis];
+    }
+
+    for (ch = 0; ch < s->avctx->channels; ch++) {
+        for (i = 0; i < CELT_MAX_BANDS; i++) {
+            float avg_c_s, energy = 0.0f, dist_dev = 0.0f;
+            const int range = ff_celt_freq_range[i] << s->bsize_analysis;
+            const float *coeffs = st->bands[ch][i];
+            for (j = 0; j < range; j++)
+                energy += coeffs[j]*coeffs[j];
+
+            st->energy[ch][i] += sqrtf(energy);
+            silence |= !!st->energy[ch][i];
+            avg_c_s = energy / range;
+
+            for (j = 0; j < range; j++) {
+                const float c_s = coeffs[j]*coeffs[j];
+                dist_dev += (avg_c_s - c_s)*(avg_c_s - c_s);
+            }
+
+            st->tone[ch][i] += sqrtf(dist_dev);
+        }
+    }
+
+    st->silence = !silence;
+
+    if (s->avctx->channels > 1) {
+        for (i = 0; i < CELT_MAX_BANDS; i++) {
+            float incompat = 0.0f;
+            const float *coeffs1 = st->bands[0][i];
+            const float *coeffs2 = st->bands[1][i];
+            const int range = ff_celt_freq_range[i] << s->bsize_analysis;
+            for (j = 0; j < range; j++)
+                incompat += (coeffs1[j] - coeffs2[j])*(coeffs1[j] - coeffs2[j]);
+            st->stereo[i] = sqrtf(incompat);
+        }
+    }
+
+    for (ch = 0; ch < s->avctx->channels; ch++) {
+        for (i = 0; i < CELT_MAX_BANDS; i++) {
+            OpusBandExcitation *ex = &s->ex[ch][i];
+            float bp_e = bessel_filter(&s->bfilter_lo[ch][i], st->energy[ch][i]);
+            bp_e = bessel_filter(&s->bfilter_hi[ch][i], bp_e);
+            bp_e *= bp_e;
+            if (bp_e > ex->excitation) {
+                st->change_amp[ch][i] = bp_e - ex->excitation;
+                st->total_change += st->change_amp[ch][i];
+                ex->excitation = ex->excitation_init = bp_e;
+                ex->excitation_dist = 0.0f;
+            }
+            if (ex->excitation > 0.0f) {
+                ex->excitation -= av_clipf((1/expf(ex->excitation_dist)), ex->excitation_init/20, ex->excitation_init/1.09);
+                ex->excitation = FFMAX(ex->excitation, 0.0f);
+                ex->excitation_dist += 1.0f;
+            }
+        }
+    }
+}
+
+static void search_for_change_points(OpusPsyContext *s, float tgt_change,
+                                     int offset_s, int offset_e, int resolution,
+                                     int level)
+{
+    int i;
+    float c_change = 0.0f;
+    if ((offset_e - offset_s) <= resolution)
+        return;
+    for (i = offset_s; i < offset_e; i++) {
+        c_change += s->steps[i]->total_change;
+        if (c_change > tgt_change)
+            break;
+    }
+    if (i == offset_e)
+        return;
+    search_for_change_points(s, tgt_change / 2.0f, offset_s, i + 0, resolution, level + 1);
+    s->inflection_points[s->inflection_points_count++] = i;
+    search_for_change_points(s, tgt_change / 2.0f, i + 1, offset_e, resolution, level + 1);
+}
+
+static int flush_silent_frames(OpusPsyContext *s)
+{
+    int fsize, silent_frames;
+
+    for (silent_frames = 0; silent_frames < s->buffered_steps; silent_frames++)
+        if (!s->steps[silent_frames]->silence)
+            break;
+    if (--silent_frames < 0)
+        return 0;
+
+    for (fsize = CELT_BLOCK_960; fsize > CELT_BLOCK_120; fsize--) {
+        if ((1 << fsize) > silent_frames)
+            continue;
+        s->p.frames = FFMIN(silent_frames / (1 << fsize), 48 >> fsize);
+        s->p.framesize = fsize;
+        return 1;
+    }
+
+    return 0;
+}
+
+/* Main function which decides frame size and frames per current packet */
+static void psy_output_groups(OpusPsyContext *s)
+{
+    int max_delay_samples = (s->options->max_delay_ms*s->avctx->sample_rate)/1000;
+    int max_bsize = FFMIN(OPUS_SAMPLES_TO_BLOCK_SIZE(max_delay_samples), CELT_BLOCK_960);
+
+    /* These don't change for now */
+    s->p.mode      = OPUS_MODE_CELT;
+    s->p.bandwidth = OPUS_BANDWIDTH_FULLBAND;
+
+    /* Flush silent frames ASAP */
+    if (s->steps[0]->silence && flush_silent_frames(s))
+        return;
+
+    s->p.framesize = FFMIN(max_bsize, CELT_BLOCK_960);
+    s->p.frames    = 1;
+}
+
+int ff_opus_psy_process(OpusPsyContext *s, OpusPacketInfo *p)
+{
+    int i;
+    float total_energy_change = 0.0f;
+
+    if (s->buffered_steps < s->max_steps && !s->eof) {
+        const int awin = (1 << s->bsize_analysis);
+        if (++s->steps_to_process >= awin) {
+            step_collect_psy_metrics(s, s->buffered_steps - awin + 1);
+            s->steps_to_process = 0;
+        }
+        if ((++s->buffered_steps) < s->max_steps)
+            return 1;
+    }
+
+    for (i = 0; i < s->buffered_steps; i++)
+        total_energy_change += s->steps[i]->total_change;
+
+    search_for_change_points(s, total_energy_change / 2.0f, 0,
+                             s->buffered_steps, 1, 0);
+
+    psy_output_groups(s);
+
+    p->frames    = s->p.frames;
+    p->framesize = s->p.framesize;
+    p->mode      = s->p.mode;
+    p->bandwidth = s->p.bandwidth;
+
+    return 0;
+}
+
+void ff_opus_psy_celt_frame_init(OpusPsyContext *s, CeltFrame *f, int index)
+{
+    int i, neighbouring_points = 0, start_offset = 0;
+    int radius = (1 << s->p.framesize), step_offset = radius*index;
+    int silence = 1;
+
+    f->start_band = (s->p.mode == OPUS_MODE_HYBRID) ? 17 : 0;
+    f->end_band   = ff_celt_band_end[s->p.bandwidth];
+    f->channels   = s->avctx->channels;
+    f->size       = s->p.framesize;
+
+    for (i = 0; i < (1 << f->size); i++)
+        silence &= s->steps[index*(1 << f->size) + i]->silence;
+
+    f->silence = silence;
+    if (f->silence) {
+        f->framebits = 0; /* Otherwise the silence flag eats up 16(!) bits */
+        return;
+    }
+
+    for (i = 0; i < s->inflection_points_count; i++) {
+        if (s->inflection_points[i] >= step_offset) {
+            start_offset = i;
+            break;
+        }
+    }
+
+    for (i = start_offset; i < FFMIN(radius, s->inflection_points_count - start_offset); i++) {
+        if (s->inflection_points[i] < (step_offset + radius)) {
+            neighbouring_points++;
+        }
+    }
+
+    /* Transient flagging */
+    f->transient = neighbouring_points > 0;
+    f->blocks = f->transient ? OPUS_BLOCK_SIZE(s->p.framesize)/CELT_OVERLAP : 1;
+
+    /* Some sane defaults */
+    f->pfilter   = 0;
+    f->pf_gain   = 0.5f;
+    f->pf_octave = 2;
+    f->pf_period = 1;
+    f->pf_tapset = 2;
+
+    /* More sane defaults */
+    f->tf_select = 0;
+    f->anticollapse = 1;
+    f->alloc_trim = 5;
+    f->skip_band_floor = f->end_band;
+    f->intensity_stereo = f->end_band;
+    f->dual_stereo = 0;
+    f->spread = CELT_SPREAD_NORMAL;
+    memset(f->tf_change, 0, sizeof(int)*CELT_MAX_BANDS);
+    memset(f->alloc_boost, 0, sizeof(int)*CELT_MAX_BANDS);
+}
+
+static void celt_gauge_psy_weight(OpusPsyContext *s, OpusPsyStep **start,
+                                  CeltFrame *f_out)
+{
+    int i, f, ch;
+    int frame_size = OPUS_BLOCK_SIZE(s->p.framesize);
+    float rate, frame_bits = 0;
+
+    /* Used for the global ROTATE flag */
+    float tonal = 0.0f;
+
+    /* Pseudo-weights */
+    float band_score[CELT_MAX_BANDS] = { 0 };
+    float max_score = 1.0f;
+
+    /* Pass one - one loop around each band, computing unquant stuff */
+    for (i = 0; i < CELT_MAX_BANDS; i++) {
+        float weight = 0.0f;
+        float tonal_contrib = 0.0f;
+        for (f = 0; f < (1 << s->p.framesize); f++) {
+            weight = start[f]->stereo[i];
+            for (ch = 0; ch < s->avctx->channels; ch++) {
+                weight += start[f]->change_amp[ch][i] + start[f]->tone[ch][i] + start[f]->energy[ch][i];
+                tonal_contrib += start[f]->tone[ch][i];
+            }
+        }
+        tonal += tonal_contrib;
+        band_score[i] = weight;
+    }
+
+    tonal /= (float)CELT_MAX_BANDS;
+
+    for (i = 0; i < CELT_MAX_BANDS; i++) {
+        if (band_score[i] > max_score)
+            max_score = band_score[i];
+    }
+
+    for (i = 0; i < CELT_MAX_BANDS; i++) {
+        f_out->alloc_boost[i] = (int)((band_score[i]/max_score)*3.0f);
+        frame_bits += band_score[i]*8.0f;
+    }
+
+    tonal /= 1333136.0f;
+    f_out->spread = av_clip_uintp2(lrintf(tonal), 2);
+
+    rate = ((float)s->avctx->bit_rate) + frame_bits*frame_size*16;
+    rate *= s->lambda;
+    rate /= s->avctx->sample_rate/frame_size;
+
+    f_out->framebits = lrintf(rate);
+    f_out->framebits = FFMIN(f_out->framebits, OPUS_MAX_PACKET_SIZE*8);
+    f_out->framebits = FFALIGN(f_out->framebits, 8);
+}
+
+static int bands_dist(OpusPsyContext *s, CeltFrame *f, float *total_dist)
+{
+    int i, tdist = 0.0f;
+    OpusRangeCoder dump;
+
+    ff_opus_rc_enc_init(&dump);
+    ff_celt_bitalloc(f, &dump, 1);
+
+    for (i = 0; i < CELT_MAX_BANDS; i++) {
+        float bits = 0.0f;
+        float dist = pvq_band_cost(f->pvq, f, &dump, i, &bits, s->lambda);
+        tdist += dist;
+    }
+
+    *total_dist = tdist;
+
+    return 0;
+}
+
+static void celt_search_for_dual_stereo(OpusPsyContext *s, CeltFrame *f)
+{
+    float td1, td2;
+    f->dual_stereo = 0;
+
+    if (s->avctx->channels < 2)
+        return;
+
+    bands_dist(s, f, &td1);
+    f->dual_stereo = 1;
+    bands_dist(s, f, &td2);
+
+    f->dual_stereo = td2 < td1;
+    s->dual_stereo_used += td2 < td1;
+}
+
+static void celt_search_for_intensity(OpusPsyContext *s, CeltFrame *f)
+{
+    int i, best_band = CELT_MAX_BANDS - 1;
+    float dist, best_dist = FLT_MAX;
+    /* TODO: fix, make some heuristic up here using the lambda value */
+    float end_band = 0;
+
+    if (s->avctx->channels < 2)
+        return;
+
+    for (i = f->end_band; i >= end_band; i--) {
+        f->intensity_stereo = i;
+        bands_dist(s, f, &dist);
+        if (best_dist > dist) {
+            best_dist = dist;
+            best_band = i;
+        }
+    }
+
+    f->intensity_stereo = best_band;
+    s->avg_is_band = (s->avg_is_band + f->intensity_stereo)/2.0f;
+}
+
+static int celt_search_for_tf(OpusPsyContext *s, OpusPsyStep **start, CeltFrame *f)
+{
+    int i, j, k, cway, config[2][CELT_MAX_BANDS] = { { 0 } };
+    float score[2] = { 0 };
+
+    for (cway = 0; cway < 2; cway++) {
+        int mag[2];
+        int base = f->transient ? 120 : 960;
+
+        for (i = 0; i < 2; i++) {
+            int c = ff_celt_tf_select[f->size][f->transient][cway][i];
+            mag[i] = c < 0 ? base >> FFABS(c) : base << FFABS(c);
+        }
+
+        for (i = 0; i < CELT_MAX_BANDS; i++) {
+            float iscore0 = 0.0f;
+            float iscore1 = 0.0f;
+            for (j = 0; j < (1 << f->size); j++) {
+                for (k = 0; k < s->avctx->channels; k++) {
+                    iscore0 += start[j]->tone[k][i]*start[j]->change_amp[k][i]/mag[0];
+                    iscore1 += start[j]->tone[k][i]*start[j]->change_amp[k][i]/mag[1];
+                }
+            }
+            config[cway][i] = FFABS(iscore0 - 1.0f) < FFABS(iscore1 - 1.0f);
+            score[cway] += config[cway][i] ? iscore1 : iscore0;
+        }
+    }
+
+    f->tf_select = score[0] < score[1];
+    memcpy(f->tf_change, config[f->tf_select], sizeof(int)*CELT_MAX_BANDS);
+
+    return 0;
+}
+
+int ff_opus_psy_celt_frame_process(OpusPsyContext *s, CeltFrame *f, int index)
+{
+    int start_transient_flag = f->transient;
+    OpusPsyStep **start = &s->steps[index * (1 << s->p.framesize)];
+
+    if (f->silence)
+        return 0;
+
+    celt_gauge_psy_weight(s, start, f);
+    celt_search_for_intensity(s, f);
+    celt_search_for_dual_stereo(s, f);
+    celt_search_for_tf(s, start, f);
+
+    if (f->transient != start_transient_flag) {
+        f->blocks = f->transient ? OPUS_BLOCK_SIZE(s->p.framesize)/CELT_OVERLAP : 1;
+        s->redo_analysis = 1;
+        return 1;
+    }
+
+    s->redo_analysis = 0;
+
+    return 0;
+}
+
+void ff_opus_psy_postencode_update(OpusPsyContext *s, CeltFrame *f, OpusRangeCoder *rc)
+{
+    int i, frame_size = OPUS_BLOCK_SIZE(s->p.framesize);
+    int steps_out = s->p.frames*(frame_size/120);
+    void *tmp[FF_BUFQUEUE_SIZE];
+    float ideal_fbits;
+
+    for (i = 0; i < steps_out; i++)
+        memset(s->steps[i], 0, sizeof(OpusPsyStep));
+
+    for (i = 0; i < s->max_steps; i++)
+        tmp[i] = s->steps[i];
+
+    for (i = 0; i < s->max_steps; i++) {
+        const int i_new = i - steps_out;
+        s->steps[i_new < 0 ? s->max_steps + i_new : i_new] = tmp[i];
+    }
+
+    for (i = steps_out; i < s->buffered_steps; i++)
+        s->steps[i]->index -= steps_out;
+
+    ideal_fbits = s->avctx->bit_rate/(s->avctx->sample_rate/frame_size);
+
+    for (i = 0; i < s->p.frames; i++) {
+        s->avg_is_band += f[i].intensity_stereo;
+        s->lambda *= ideal_fbits / f[i].framebits;
+    }
+
+    s->avg_is_band /= (s->p.frames + 1);
+
+    s->cs_num = 0;
+    s->steps_to_process = 0;
+    s->buffered_steps -= steps_out;
+    s->total_packets_out += s->p.frames;
+    s->inflection_points_count = 0;
+}
+
+av_cold int ff_opus_psy_init(OpusPsyContext *s, AVCodecContext *avctx,
+                             struct FFBufQueue *bufqueue, OpusEncOptions *options)
+{
+    int i, ch, ret;
+
+    s->redo_analysis = 0;
+    s->lambda = 1.0f;
+    s->options = options;
+    s->avctx = avctx;
+    s->bufqueue = bufqueue;
+    s->max_steps = ceilf(s->options->max_delay_ms/2.5f);
+    s->bsize_analysis = CELT_BLOCK_960;
+    s->avg_is_band = CELT_MAX_BANDS - 1;
+    s->inflection_points_count = 0;
+
+    s->inflection_points = av_mallocz(sizeof(*s->inflection_points)*s->max_steps);
+    if (!s->inflection_points) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    s->dsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
+    if (!s->dsp) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    for (ch = 0; ch < s->avctx->channels; ch++) {
+        for (i = 0; i < CELT_MAX_BANDS; i++) {
+            bessel_init(&s->bfilter_hi[ch][i], 1.0f, 19.0f, 100.0f, 1);
+            bessel_init(&s->bfilter_lo[ch][i], 1.0f, 20.0f, 100.0f, 0);
+        }
+    }
+
+    for (i = 0; i < s->max_steps; i++) {
+        s->steps[i] = av_mallocz(sizeof(OpusPsyStep));
+        if (!s->steps[i]) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+    }
+
+    for (i = 0; i < CELT_BLOCK_NB; i++) {
+        float tmp;
+        const int len = OPUS_BLOCK_SIZE(i);
+        s->window[i] = av_malloc(2*len*sizeof(float));
+        if (!s->window[i]) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+        generate_window_func(s->window[i], 2*len, WFUNC_SINE, &tmp);
+        if ((ret = ff_mdct15_init(&s->mdct[i], 0, i + 3, 68 << (CELT_BLOCK_NB - 1 - i))))
+            goto fail;
+    }
+
+    return 0;
+
+fail:
+    av_freep(&s->inflection_points);
+    av_freep(&s->dsp);
+
+    for (i = 0; i < CELT_BLOCK_NB; i++) {
+        ff_mdct15_uninit(&s->mdct[i]);
+        av_freep(&s->window[i]);
+    }
+
+    for (i = 0; i < s->max_steps; i++)
+        av_freep(&s->steps[i]);
+
+    return ret;
+}
+
+void ff_opus_psy_signal_eof(OpusPsyContext *s)
+{
+    s->eof = 1;
+}
+
+av_cold int ff_opus_psy_end(OpusPsyContext *s)
+{
+    int i;
+
+    av_freep(&s->inflection_points);
+    av_freep(&s->dsp);
+
+    for (i = 0; i < CELT_BLOCK_NB; i++) {
+        ff_mdct15_uninit(&s->mdct[i]);
+        av_freep(&s->window[i]);
+    }
+
+    for (i = 0; i < s->max_steps; i++)
+        av_freep(&s->steps[i]);
+
+    av_log(s->avctx, AV_LOG_INFO, "Average Intensity Stereo band: %0.1f\n", s->avg_is_band);
+    av_log(s->avctx, AV_LOG_INFO, "Dual Stereo used: %0.2f%%\n", ((float)s->dual_stereo_used/s->total_packets_out)*100.0f);
+
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc_psy.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc_psy.h
new file mode 100644
index 000000000..b91e4f1b8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc_psy.h
@@ -0,0 +1,104 @@
+/*
+ * Opus encoder
+ * Copyright (c) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_OPUSENC_PSY_H
+#define AVCODEC_OPUSENC_PSY_H
+
+#include "opusenc.h"
+#include "opusenc_utils.h"
+#include "libavfilter/window_func.h"
+
+/* Each step is 2.5ms */
+typedef struct OpusPsyStep {
+    int   index; /* Current index */
+    int   silence;
+    float energy[OPUS_MAX_CHANNELS][CELT_MAX_BANDS]; /* Masking effects included */
+    float tone[OPUS_MAX_CHANNELS][CELT_MAX_BANDS];   /* Tonality */
+    float stereo[CELT_MAX_BANDS];                    /* IS/MS compatibility */
+    float change_amp[OPUS_MAX_CHANNELS][CELT_MAX_BANDS]; /* Jump over last frame */
+    float total_change; /* Total change */
+
+    float *bands[OPUS_MAX_CHANNELS][CELT_MAX_BANDS];
+    float coeffs[OPUS_MAX_CHANNELS][OPUS_BLOCK_SIZE(CELT_BLOCK_960)];
+} OpusPsyStep;
+
+typedef struct OpusBandExcitation {
+    float excitation;
+    float excitation_dist;
+    float excitation_init;
+} OpusBandExcitation;
+
+typedef struct PsyChain {
+    int start;
+    int end;
+} PsyChain;
+
+typedef struct OpusPsyContext {
+    AVCodecContext *avctx;
+    AVFloatDSPContext *dsp;
+    struct FFBufQueue *bufqueue;
+    OpusEncOptions *options;
+
+    PsyChain cs[128];
+    int cs_num;
+
+    OpusBandExcitation ex[OPUS_MAX_CHANNELS][CELT_MAX_BANDS];
+    FFBesselFilter bfilter_lo[OPUS_MAX_CHANNELS][CELT_MAX_BANDS];
+    FFBesselFilter bfilter_hi[OPUS_MAX_CHANNELS][CELT_MAX_BANDS];
+
+    OpusPsyStep *steps[FF_BUFQUEUE_SIZE + 1];
+    int max_steps;
+
+    float *window[CELT_BLOCK_NB];
+    MDCT15Context *mdct[CELT_BLOCK_NB];
+    int bsize_analysis;
+
+    DECLARE_ALIGNED(32, float, scratch)[2048];
+
+    /* Stats */
+    float rc_waste;
+    float avg_is_band;
+    int64_t dual_stereo_used;
+    int64_t total_packets_out;
+
+    /* State */
+    FFBesselFilter lambda_lp;
+    OpusPacketInfo p;
+    int redo_analysis;
+    int buffered_steps;
+    int steps_to_process;
+    int eof;
+    float lambda;
+    int *inflection_points;
+    int inflection_points_count;
+} OpusPsyContext;
+
+int  ff_opus_psy_process           (OpusPsyContext *s, OpusPacketInfo *p);
+void ff_opus_psy_celt_frame_init   (OpusPsyContext *s, CeltFrame *f, int index);
+int  ff_opus_psy_celt_frame_process(OpusPsyContext *s, CeltFrame *f, int index);
+void ff_opus_psy_postencode_update (OpusPsyContext *s, CeltFrame *f, OpusRangeCoder *rc);
+
+int  ff_opus_psy_init(OpusPsyContext *s, AVCodecContext *avctx,
+                      struct FFBufQueue *bufqueue, OpusEncOptions *options);
+void ff_opus_psy_signal_eof(OpusPsyContext *s);
+int  ff_opus_psy_end(OpusPsyContext *s);
+
+#endif /* AVCODEC_OPUSENC_PSY_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc_utils.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc_utils.h
new file mode 100644
index 000000000..be82e1376
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opusenc_utils.h
@@ -0,0 +1,87 @@
+/*
+ * Opus encoder
+ * Copyright (c) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_OPUSENC_UTILS_H
+#define AVCODEC_OPUSENC_UTILS_H
+
+#include "opus.h"
+
+typedef struct FFBesselFilter {
+    float a[3];
+    float b[2];
+    float x[3];
+    float y[3];
+} FFBesselFilter;
+
+/* Fills the coefficients, returns 1 if filter will be unstable */
+static inline int bessel_reinit(FFBesselFilter *s, float n, float f0, float fs,
+                                int highpass)
+{
+    int unstable;
+    float c, cfreq, w0, k1, k2;
+
+    if (!highpass) {
+        c = (1.0f/sqrtf(sqrtf(pow(2.0f, 1.0f/n) - 3.0f/4.0f) - 0.5f))/sqrtf(3.0f);
+        cfreq = c*f0/fs;
+        unstable = (cfreq <= 0.0f || cfreq >= 1.0f/4.0f);
+    } else {
+        c = sqrtf(3.0f)*sqrtf(sqrtf(pow(2.0f, 1.0f/n) - 3.0f/4.0f) - 0.5f);
+        cfreq = 0.5f - c*f0/fs;
+        unstable = (cfreq <= 3.0f/8.0f || cfreq >= 1.0f/2.0f);
+    }
+
+    w0 = tanf(M_PI*cfreq);
+    k1 = 3.0f * w0;
+    k2 = 3.0f * w0;
+
+    s->a[0] = k2/(1.0f + k1 + k2);
+    s->a[1] = 2.0f * s->a[0];
+    s->a[2] = s->a[0];
+    s->b[0] = 2.0f * s->a[0] * (1.0f/k2 - 1.0f);
+    s->b[1] = 1.0f - (s->a[0] + s->a[1] + s->a[2] + s->b[0]);
+
+    if (highpass) {
+        s->a[1] *= -1;
+        s->b[0] *= -1;
+    }
+
+    return unstable;
+}
+
+static inline int bessel_init(FFBesselFilter *s, float n, float f0, float fs,
+                              int highpass)
+{
+    memset(s, 0, sizeof(FFBesselFilter));
+    return bessel_reinit(s, n, f0, fs, highpass);
+}
+
+static inline float bessel_filter(FFBesselFilter *s, float x)
+{
+    s->x[2] = s->x[1];
+    s->x[1] = s->x[0];
+    s->x[0] = x;
+    s->y[2] = s->y[1];
+    s->y[1] = s->y[0];
+    s->y[0] = s->a[0]*s->x[0] + s->a[1]*s->x[1] + s->a[2]*s->x[2] + s->b[0]*s->y[1] + s->b[1]*s->y[2];
+    return s->y[0];
+}
+
+#endif /* AVCODEC_OPUSENC_UTILS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opustab.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opustab.c
new file mode 100644
index 000000000..fb340e07e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opustab.c
@@ -0,0 +1,1158 @@
+/*
+ * Copyright (c) 2012 Andrew D'Addesio
+ * Copyright (c) 2013-2014 Mozilla Corporation
+ * Copyright (c) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "opustab.h"
+
+const uint8_t ff_opus_default_coupled_streams[] = { 0, 1, 1, 2, 2, 2, 2, 3 };
+
+const uint8_t ff_celt_band_end[] = { 13, 17, 17, 19, 21 };
+
+const uint16_t ff_silk_model_stereo_s1[] = {
+    256,   7,   9,  10,  11,  12,  22,  46,  54,  55,  56,  59,  82, 174, 197, 200,
+    201, 202, 210, 234, 244, 245, 246, 247, 249, 256
+};
+
+const uint16_t ff_silk_model_stereo_s2[] = {256, 85, 171, 256};
+
+const uint16_t ff_silk_model_stereo_s3[] = {256, 51, 102, 154, 205, 256};
+
+const uint16_t ff_silk_model_mid_only[] = {256, 192, 256};
+
+const uint16_t ff_silk_model_frame_type_inactive[] = {256, 26, 256};
+
+const uint16_t ff_silk_model_frame_type_active[] = {256, 24, 98, 246, 256};
+
+const uint16_t ff_silk_model_gain_highbits[3][9] = {
+    {256,  32, 144, 212, 241, 253, 254, 255, 256},
+    {256,   2,  19,  64, 124, 186, 233, 252, 256},
+    {256,   1,   4,  30, 101, 195, 245, 254, 256}
+};
+
+const uint16_t ff_silk_model_gain_lowbits[] = {256, 32, 64, 96, 128, 160, 192, 224, 256};
+
+const uint16_t ff_silk_model_gain_delta[] = {
+    256,   6,  11,  22,  53, 185, 206, 214, 218, 221, 223, 225, 227, 228, 229, 230,
+    231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246,
+    247, 248, 249, 250, 251, 252, 253, 254, 255, 256
+};
+const uint16_t ff_silk_model_lsf_s1[2][2][33] = {
+    {
+        {    // NB or MB, unvoiced
+            256,  44,  78, 108, 127, 148, 160, 171, 174, 177, 179, 195, 197, 199, 200, 205,
+            207, 208, 211, 214, 215, 216, 218, 220, 222, 225, 226, 235, 244, 246, 253, 255, 256
+        }, { // NB or MB, voiced
+            256,   1,  11,  12,  20,  23,  31,  39,  53,  66,  80,  81,  95, 107, 120, 131,
+            142, 154, 165, 175, 185, 196, 204, 213, 221, 228, 236, 237, 238, 244, 245, 251, 256
+        }
+    }, {
+        {    // WB, unvoiced
+            256,  31,  52,  55,  72,  73,  81,  98, 102, 103, 121, 137, 141, 143, 146, 147,
+            157, 158, 161, 177, 188, 204, 206, 208, 211, 213, 224, 225, 229, 238, 246, 253, 256
+        }, { // WB, voiced
+            256,   1,   5,  21,  26,  44,  55,  60,  74,  89,  90,  93, 105, 118, 132, 146,
+            152, 166, 178, 180, 186, 187, 199, 211, 222, 232, 235, 245, 250, 251, 252, 253, 256
+        }
+    }
+};
+
+const uint16_t ff_silk_model_lsf_s2[32][10] = {
+    // NB, MB
+    { 256,   1,   2,   3,  18, 242, 253, 254, 255, 256 },
+    { 256,   1,   2,   4,  38, 221, 253, 254, 255, 256 },
+    { 256,   1,   2,   6,  48, 197, 252, 254, 255, 256 },
+    { 256,   1,   2,  10,  62, 185, 246, 254, 255, 256 },
+    { 256,   1,   4,  20,  73, 174, 248, 254, 255, 256 },
+    { 256,   1,   4,  21,  76, 166, 239, 254, 255, 256 },
+    { 256,   1,   8,  32,  85, 159, 226, 252, 255, 256 },
+    { 256,   1,   2,  20,  83, 161, 219, 249, 255, 256 },
+
+    // WB
+    { 256,   1,   2,   3,  12, 244, 253, 254, 255, 256 },
+    { 256,   1,   2,   4,  32, 218, 253, 254, 255, 256 },
+    { 256,   1,   2,   5,  47, 199, 252, 254, 255, 256 },
+    { 256,   1,   2,  12,  61, 187, 252, 254, 255, 256 },
+    { 256,   1,   5,  24,  72, 172, 249, 254, 255, 256 },
+    { 256,   1,   2,  16,  70, 170, 242, 254, 255, 256 },
+    { 256,   1,   2,  17,  78, 165, 226, 251, 255, 256 },
+    { 256,   1,   8,  29,  79, 156, 237, 254, 255, 256 }
+};
+
+const uint16_t ff_silk_model_lsf_s2_ext[] = { 256, 156, 216, 240, 249, 253, 255, 256 };
+
+const uint16_t ff_silk_model_lsf_interpolation_offset[] = { 256, 13, 35, 64, 75, 256 };
+
+const uint16_t ff_silk_model_pitch_highbits[] = {
+    256,   3,   6,  12,  23,  44,  74, 106, 125, 136, 146, 158, 171, 184, 196, 207,
+    216, 224, 231, 237, 241, 243, 245, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256
+};
+
+const uint16_t ff_silk_model_pitch_lowbits_nb[] = { 256, 64, 128, 192, 256 };
+
+const uint16_t ff_silk_model_pitch_lowbits_mb[] = { 256, 43, 85, 128, 171, 213, 256 };
+
+const uint16_t ff_silk_model_pitch_lowbits_wb[] = { 256, 32, 64, 96, 128, 160, 192, 224, 256 };
+
+const uint16_t ff_silk_model_pitch_delta[] = {
+    256,  46,  48,  50,  53,  57,  63,  73,  88, 114, 152, 182, 204, 219, 229, 236,
+    242, 246, 250, 252, 254, 256
+};
+
+const uint16_t ff_silk_model_pitch_contour_nb10ms[] = { 256, 143, 193, 256 };
+
+const uint16_t ff_silk_model_pitch_contour_nb20ms[] = {
+    256,  68,  80, 101, 118, 137, 159, 189, 213, 230, 246, 256
+};
+
+const uint16_t ff_silk_model_pitch_contour_mbwb10ms[] = {
+    256,  91, 137, 176, 195, 209, 221, 229, 236, 242, 247, 252, 256
+};
+
+const uint16_t ff_silk_model_pitch_contour_mbwb20ms[] = {
+    256,  33,  55,  73,  89, 104, 118, 132, 145, 158, 168, 177, 186, 194, 200, 206,
+    212, 217, 221, 225, 229, 232, 235, 238, 240, 242, 244, 246, 248, 250, 252, 253,
+    254, 255, 256
+};
+
+const uint16_t ff_silk_model_ltp_filter[] = { 256, 77, 157, 256 };
+
+const uint16_t ff_silk_model_ltp_filter0_sel[] = {
+    256, 185, 200, 213, 226, 235, 244, 250, 256
+};
+
+const uint16_t ff_silk_model_ltp_filter1_sel[] = {
+    256,  57,  91, 112, 132, 147, 160, 172, 185, 195, 205, 214, 224, 233, 241, 248, 256
+};
+
+const uint16_t ff_silk_model_ltp_filter2_sel[] = {
+    256,  15,  31,  45,  57,  69,  81,  92, 103, 114, 124, 133, 142, 151, 160, 168,
+    176, 184, 192, 199, 206, 212, 218, 223, 227, 232, 236, 240, 244, 247, 251, 254, 256
+};
+
+const uint16_t ff_silk_model_ltp_scale_index[] = { 256, 128, 192, 256 };
+
+const uint16_t ff_silk_model_lcg_seed[] = { 256, 64, 128, 192, 256 };
+
+const uint16_t ff_silk_model_exc_rate[2][10] = {
+    { 256,  15,  66,  78, 124, 169, 182, 215, 242, 256 }, // unvoiced
+    { 256,  33,  63,  99, 116, 150, 199, 217, 238, 256 }  // voiced
+};
+
+const uint16_t ff_silk_model_pulse_count[11][19] = {
+    { 256, 131, 205, 230, 238, 241, 244, 245, 246,
+      247, 248, 249, 250, 251, 252, 253, 254, 255, 256 },
+    { 256,  58, 151, 211, 234, 241, 244, 245, 246,
+      247, 248, 249, 250, 251, 252, 253, 254, 255, 256 },
+    { 256,  43,  94, 140, 173, 197, 213, 224, 232,
+      238, 241, 244, 247, 249, 250, 251, 253, 254, 256 },
+    { 256,  17,  69, 140, 197, 228, 240, 245, 246,
+      247, 248, 249, 250, 251, 252, 253, 254, 255, 256 },
+    { 256,   6,  27,  68, 121, 170, 205, 226, 237,
+      243, 246, 248, 250, 251, 252, 253, 254, 255, 256 },
+    { 256,   7,  21,  43,  71, 100, 128, 153, 173,
+      190, 203, 214, 223, 230, 235, 239, 243, 246, 256 },
+    { 256,   2,   7,  21,  50,  92, 138, 179, 210,
+      229, 240, 246, 249, 251, 252, 253, 254, 255, 256 },
+    { 256,   1,   3,   7,  17,  36,  65, 100, 137,
+      171, 199, 219, 233, 241, 246, 250, 252, 254, 256 },
+    { 256,   1,   3,   5,  10,  19,  33,  53,  77,
+      104, 132, 158, 181, 201, 216, 227, 235, 241, 256 },
+    { 256,   1,   2,   3,   9,  36,  94, 150, 189,
+      214, 228, 238, 244, 247, 250, 252, 253, 254, 256 },
+    { 256,   2,   3,   9,  36,  94, 150, 189, 214,
+      228, 238, 244, 247, 250, 252, 253, 254, 256, 256 }
+};
+
+const uint16_t ff_silk_model_pulse_location[4][168] = {
+    {
+        256, 126, 256,
+        256, 56, 198, 256,
+        256, 25, 126, 230, 256,
+        256, 12, 72, 180, 244, 256,
+        256, 7, 42, 126, 213, 250, 256,
+        256, 4, 24, 83, 169, 232, 253, 256,
+        256, 3, 15, 53, 125, 200, 242, 254, 256,
+        256, 2, 10, 35, 89, 162, 221, 248, 255, 256,
+        256, 2, 7, 24, 63, 126, 191, 233, 251, 255, 256,
+        256, 1, 5, 17, 45, 94, 157, 211, 241, 252, 255, 256,
+        256, 1, 5, 13, 33, 70, 125, 182, 223, 245, 253, 255, 256,
+        256, 1, 4, 11, 26, 54, 98, 151, 199, 232, 248, 254, 255, 256,
+        256, 1, 3, 9, 21, 42, 77, 124, 172, 212, 237, 249, 254, 255, 256,
+        256, 1, 2, 6, 16, 33, 60, 97, 144, 187, 220, 241, 250, 254, 255, 256,
+        256, 1, 2, 3, 11, 25, 47, 80, 120, 163, 201, 229, 245, 253, 254, 255, 256,
+        256, 1, 2, 3, 4, 17, 35, 62, 98, 139, 180, 214, 238, 252, 253, 254, 255, 256
+    },{
+        256, 127, 256,
+        256, 53, 202, 256,
+        256, 22, 127, 233, 256,
+        256, 11, 72, 183, 246, 256,
+        256, 6, 41, 127, 215, 251, 256,
+        256, 4, 24, 83, 170, 232, 253, 256,
+        256, 3, 16, 56, 127, 200, 241, 254, 256,
+        256, 3, 12, 39, 92, 162, 218, 246, 255, 256,
+        256, 3, 11, 30, 67, 124, 185, 229, 249, 255, 256,
+        256, 3, 10, 25, 53, 97, 151, 200, 233, 250, 255, 256,
+        256, 1, 8, 21, 43, 77, 123, 171, 209, 237, 251, 255, 256,
+        256, 1, 2, 13, 35, 62, 97, 139, 186, 219, 244, 254, 255, 256,
+        256, 1, 2, 8, 22, 48, 85, 128, 171, 208, 234, 248, 254, 255, 256,
+        256, 1, 2, 6, 16, 36, 67, 107, 149, 189, 220, 240, 250, 254, 255, 256,
+        256, 1, 2, 5, 13, 29, 55, 90, 128, 166, 201, 227, 243, 251, 254, 255, 256,
+        256, 1, 2, 4, 10, 22, 43, 73, 109, 147, 183, 213, 234, 246, 252, 254, 255, 256
+    },{
+        256, 127, 256,
+        256, 49, 206, 256,
+        256, 20, 127, 236, 256,
+        256, 11, 71, 184, 246, 256,
+        256, 7, 43, 127, 214, 250, 256,
+        256, 6, 30, 87, 169, 229, 252, 256,
+        256, 5, 23, 62, 126, 194, 236, 252, 256,
+        256, 6, 20, 49, 96, 157, 209, 239, 253, 256,
+        256, 1, 16, 39, 74, 125, 175, 215, 245, 255, 256,
+        256, 1, 2, 23, 55, 97, 149, 195, 236, 254, 255, 256,
+        256, 1, 7, 23, 50, 86, 128, 170, 206, 233, 249, 255, 256,
+        256, 1, 6, 18, 39, 70, 108, 148, 186, 217, 238, 250, 255, 256,
+        256, 1, 4, 13, 30, 56, 90, 128, 166, 200, 226, 243, 252, 255, 256,
+        256, 1, 4, 11, 25, 47, 76, 110, 146, 180, 209, 231, 245, 252, 255, 256,
+        256, 1, 3, 8, 19, 37, 62, 93, 128, 163, 194, 219, 237, 248, 253, 255, 256,
+        256, 1, 2, 6, 15, 30, 51, 79, 111, 145, 177, 205, 226, 241, 250, 254, 255, 256
+    },{
+        256, 128, 256,
+        256, 42, 214, 256,
+        256, 21, 128, 235, 256,
+        256, 12, 72, 184, 245, 256,
+        256, 8, 42, 128, 214, 249, 256,
+        256, 8, 31, 86, 176, 231, 251, 256,
+        256, 5, 20, 58, 130, 202, 238, 253, 256,
+        256, 6, 18, 45, 97, 174, 221, 241, 251, 256,
+        256, 6, 25, 53, 88, 128, 168, 203, 231, 250, 256,
+        256, 4, 18, 40, 71, 108, 148, 185, 216, 238, 252, 256,
+        256, 3, 13, 31, 57, 90, 128, 166, 199, 225, 243, 253, 256,
+        256, 2, 10, 23, 44, 73, 109, 147, 183, 212, 233, 246, 254, 256,
+        256, 1, 6, 16, 33, 58, 90, 128, 166, 198, 223, 240, 250, 255, 256,
+        256, 1, 5, 12, 25, 46, 75, 110, 146, 181, 210, 231, 244, 251, 255, 256,
+        256, 1, 3, 8, 18, 35, 60, 92, 128, 164, 196, 221, 238, 248, 253, 255, 256,
+        256, 1, 3, 7, 14, 27, 48, 76, 110, 146, 180, 208, 229, 242, 249, 253, 255, 256
+    }
+};
+
+const uint16_t ff_silk_model_excitation_lsb[] = {256, 136, 256};
+
+const uint16_t ff_silk_model_excitation_sign[3][2][7][3] = {
+    {    // Inactive
+        {    // Low offset
+            {256,   2, 256},
+            {256, 207, 256},
+            {256, 189, 256},
+            {256, 179, 256},
+            {256, 174, 256},
+            {256, 163, 256},
+            {256, 157, 256}
+        }, { // High offset
+            {256,  58, 256},
+            {256, 245, 256},
+            {256, 238, 256},
+            {256, 232, 256},
+            {256, 225, 256},
+            {256, 220, 256},
+            {256, 211, 256}
+        }
+    }, { // Unvoiced
+        {    // Low offset
+            {256,   1, 256},
+            {256, 210, 256},
+            {256, 190, 256},
+            {256, 178, 256},
+            {256, 169, 256},
+            {256, 162, 256},
+            {256, 152, 256}
+        }, { // High offset
+            {256,  48, 256},
+            {256, 242, 256},
+            {256, 235, 256},
+            {256, 224, 256},
+            {256, 214, 256},
+            {256, 205, 256},
+            {256, 190, 256}
+        }
+    }, { // Voiced
+        {    // Low offset
+            {256,   1, 256},
+            {256, 162, 256},
+            {256, 152, 256},
+            {256, 147, 256},
+            {256, 144, 256},
+            {256, 141, 256},
+            {256, 138, 256}
+        }, { // High offset
+            {256,   8, 256},
+            {256, 203, 256},
+            {256, 187, 256},
+            {256, 176, 256},
+            {256, 168, 256},
+            {256, 161, 256},
+            {256, 154, 256}
+        }
+    }
+};
+
+const int16_t ff_silk_stereo_weights[] = {
+    -13732, -10050,  -8266,  -7526,  -6500,  -5000,  -2950,   -820,
+       820,   2950,   5000,   6500,   7526,   8266,  10050,  13732
+};
+
+const uint8_t ff_silk_lsf_s2_model_sel_nbmb[32][10] = {
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+    { 1, 3, 1, 2, 2, 1, 2, 1, 1, 1 },
+    { 2, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+    { 1, 2, 2, 2, 2, 1, 2, 1, 1, 1 },
+    { 2, 3, 3, 3, 3, 2, 2, 2, 2, 2 },
+    { 0, 5, 3, 3, 2, 2, 2, 2, 1, 1 },
+    { 0, 2, 2, 2, 2, 2, 2, 2, 2, 1 },
+    { 2, 3, 6, 4, 4, 4, 5, 4, 5, 5 },
+    { 2, 4, 5, 5, 4, 5, 4, 6, 4, 4 },
+    { 2, 4, 4, 7, 4, 5, 4, 5, 5, 4 },
+    { 4, 3, 3, 3, 2, 3, 2, 2, 2, 2 },
+    { 1, 5, 5, 6, 4, 5, 4, 5, 5, 5 },
+    { 2, 7, 4, 6, 5, 5, 5, 5, 5, 5 },
+    { 2, 7, 5, 5, 5, 5, 5, 6, 5, 4 },
+    { 3, 3, 5, 4, 4, 5, 4, 5, 4, 4 },
+    { 2, 3, 3, 5, 5, 4, 4, 4, 4, 4 },
+    { 2, 4, 4, 6, 4, 5, 4, 5, 5, 5 },
+    { 2, 5, 4, 6, 5, 5, 5, 4, 5, 4 },
+    { 2, 7, 4, 5, 4, 5, 4, 5, 5, 5 },
+    { 2, 5, 4, 6, 7, 6, 5, 6, 5, 4 },
+    { 3, 6, 7, 4, 6, 5, 5, 6, 4, 5 },
+    { 2, 7, 6, 4, 4, 4, 5, 4, 5, 5 },
+    { 4, 5, 5, 4, 6, 6, 5, 6, 5, 4 },
+    { 2, 5, 5, 6, 5, 6, 4, 6, 4, 4 },
+    { 4, 5, 5, 5, 3, 7, 4, 5, 5, 4 },
+    { 2, 3, 4, 5, 5, 6, 4, 5, 5, 4 },
+    { 2, 3, 2, 3, 3, 4, 2, 3, 3, 3 },
+    { 1, 1, 2, 2, 2, 2, 2, 3, 2, 2 },
+    { 4, 5, 5, 6, 6, 6, 5, 6, 4, 5 },
+    { 3, 5, 5, 4, 4, 4, 4, 3, 3, 2 },
+    { 2, 5, 3, 7, 5, 5, 4, 4, 5, 4 },
+    { 4, 4, 5, 4, 5, 6, 5, 6, 5, 4 }
+};
+
+const uint8_t ff_silk_lsf_s2_model_sel_wb[32][16] = {
+    {  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8 },
+    { 10, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10,  9,  9,  9,  8, 11 },
+    { 10, 13, 13, 11, 15, 12, 12, 13, 10, 13, 12, 13, 13, 12, 11, 11 },
+    {  8, 10,  9, 10, 10,  9,  9,  9,  9,  9,  8,  8,  8,  8,  8,  9 },
+    {  8, 14, 13, 12, 14, 12, 15, 13, 12, 12, 12, 13, 13, 12, 12, 11 },
+    {  8, 11, 13, 13, 12, 11, 11, 13, 11, 11, 11, 11, 11, 11, 10, 12 },
+    {  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8 },
+    {  8, 10, 14, 11, 15, 10, 13, 11, 12, 13, 13, 12, 11, 11, 10, 11 },
+    {  8, 14, 10, 14, 14, 12, 13, 12, 14, 13, 12, 12, 13, 11, 11, 11 },
+    { 10,  9,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8 },
+    {  8,  9,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  9 },
+    { 10, 10, 11, 12, 13, 11, 11, 11, 11, 11, 11, 11, 10, 10,  9, 11 },
+    { 10, 10, 11, 11, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10,  9, 11 },
+    { 11, 12, 12, 12, 14, 12, 12, 13, 11, 13, 12, 12, 13, 12, 11, 12 },
+    {  8, 14, 12, 13, 12, 15, 13, 10, 14, 13, 15, 12, 12, 11, 13, 11 },
+    {  8,  9,  8,  9,  9,  9,  9,  9,  9,  9,  8,  8,  8,  8,  9,  8 },
+    {  9, 14, 13, 15, 13, 12, 13, 11, 12, 13, 12, 12, 12, 11, 11, 12 },
+    {  9, 11, 11, 12, 12, 11, 11, 13, 10, 11, 11, 13, 13, 13, 11, 12 },
+    { 10, 11, 11, 10, 10, 10, 11, 10,  9, 10,  9, 10,  9,  9,  9, 12 },
+    {  8, 10, 11, 13, 11, 11, 10, 10, 10,  9,  9,  8,  8,  8,  8,  8 },
+    { 11, 12, 11, 13, 11, 11, 10, 10,  9,  9,  9,  9,  9, 10, 10, 12 },
+    { 10, 14, 11, 15, 15, 12, 13, 12, 13, 11, 13, 11, 11, 10, 11, 11 },
+    { 10, 11, 13, 14, 14, 11, 13, 11, 12, 12, 11, 11, 11, 11, 10, 12 },
+    {  9, 11, 11, 12, 12, 12, 12, 11, 13, 13, 13, 11,  9,  9,  9,  9 },
+    { 10, 13, 11, 14, 14, 12, 15, 12, 12, 13, 11, 12, 12, 11, 11, 11 },
+    {  8, 14,  9,  9,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8 },
+    {  8, 14, 14, 11, 13, 10, 13, 13, 11, 12, 12, 15, 15, 12, 12, 12 },
+    { 11, 11, 15, 11, 13, 12, 11, 11, 11, 10, 10, 11, 11, 11, 10, 11 },
+    {  8,  8,  9,  8,  8,  8, 10,  9, 10,  9,  9, 10, 10, 10,  9,  9 },
+    {  8, 11, 10, 13, 11, 11, 10, 11, 10,  9,  8,  8,  9,  8,  8,  9 },
+    { 11, 13, 13, 12, 15, 13, 11, 11, 10, 11, 10, 10,  9,  8,  9,  8 },
+    { 10, 11, 13, 11, 12, 11, 11, 11, 10,  9, 10, 14, 12,  8,  8,  8 }
+};
+
+const uint8_t ff_silk_lsf_pred_weights_nbmb[2][9] = {
+    {179, 138, 140, 148, 151, 149, 153, 151, 163},
+    {116,  67,  82,  59,  92,  72, 100,  89,  92}
+};
+
+const uint8_t ff_silk_lsf_pred_weights_wb[2][15] = {
+    {175, 148, 160, 176, 178, 173, 174, 164, 177, 174, 196, 182, 198, 192, 182},
+    { 68,  62,  66,  60,  72, 117,  85,  90, 118, 136, 151, 142, 160, 142, 155}
+};
+
+const uint8_t ff_silk_lsf_weight_sel_nbmb[32][9] = {
+    { 0, 1, 0, 0, 0, 0, 0, 0, 0 },
+    { 1, 0, 0, 0, 0, 0, 0, 0, 0 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+    { 1, 1, 1, 0, 0, 0, 0, 1, 0 },
+    { 0, 1, 0, 0, 0, 0, 0, 0, 0 },
+    { 0, 1, 0, 0, 0, 0, 0, 0, 0 },
+    { 1, 0, 1, 1, 0, 0, 0, 1, 0 },
+    { 0, 1, 1, 0, 0, 1, 1, 0, 0 },
+    { 0, 0, 1, 1, 0, 1, 0, 1, 1 },
+    { 0, 0, 1, 1, 0, 0, 1, 1, 1 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+    { 0, 1, 0, 1, 1, 1, 1, 1, 0 },
+    { 0, 1, 0, 1, 1, 1, 1, 1, 0 },
+    { 0, 1, 1, 1, 1, 1, 1, 1, 0 },
+    { 1, 0, 1, 1, 0, 1, 1, 1, 1 },
+    { 0, 1, 1, 1, 1, 1, 0, 1, 0 },
+    { 0, 0, 1, 1, 0, 1, 0, 1, 0 },
+    { 0, 0, 1, 1, 1, 0, 1, 1, 1 },
+    { 0, 1, 1, 0, 0, 1, 1, 1, 0 },
+    { 0, 0, 0, 1, 1, 1, 0, 1, 0 },
+    { 0, 1, 1, 0, 0, 1, 0, 1, 0 },
+    { 0, 1, 1, 0, 0, 0, 1, 1, 0 },
+    { 0, 0, 0, 0, 0, 1, 1, 1, 1 },
+    { 0, 0, 1, 1, 0, 0, 0, 1, 1 },
+    { 0, 0, 0, 1, 0, 1, 1, 1, 1 },
+    { 0, 1, 1, 1, 1, 1, 1, 1, 0 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+    { 0, 0, 1, 0, 1, 1, 0, 1, 0 },
+    { 1, 0, 0, 1, 0, 0, 0, 0, 0 },
+    { 0, 0, 0, 1, 1, 0, 1, 0, 1 },
+    { 1, 0, 1, 1, 0, 1, 1, 1, 1 }
+};
+
+const uint8_t ff_silk_lsf_weight_sel_wb[32][15] = {
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+    { 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
+    { 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0 },
+    { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+    { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0 },
+    { 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1 },
+    { 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
+    { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+    { 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0 },
+    { 0, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0 },
+    { 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0 },
+    { 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1 },
+    { 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0 },
+    { 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0 },
+    { 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+    { 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0 },
+    { 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0 },
+    { 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0 },
+    { 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
+    { 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1 },
+    { 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
+    { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0 },
+    { 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 0 }
+};
+
+const uint8_t ff_silk_lsf_codebook_nbmb[32][10] = {
+    { 12,  35,  60,  83, 108, 132, 157, 180, 206, 228 },
+    { 15,  32,  55,  77, 101, 125, 151, 175, 201, 225 },
+    { 19,  42,  66,  89, 114, 137, 162, 184, 209, 230 },
+    { 12,  25,  50,  72,  97, 120, 147, 172, 200, 223 },
+    { 26,  44,  69,  90, 114, 135, 159, 180, 205, 225 },
+    { 13,  22,  53,  80, 106, 130, 156, 180, 205, 228 },
+    { 15,  25,  44,  64,  90, 115, 142, 168, 196, 222 },
+    { 19,  24,  62,  82, 100, 120, 145, 168, 190, 214 },
+    { 22,  31,  50,  79, 103, 120, 151, 170, 203, 227 },
+    { 21,  29,  45,  65, 106, 124, 150, 171, 196, 224 },
+    { 30,  49,  75,  97, 121, 142, 165, 186, 209, 229 },
+    { 19,  25,  52,  70,  93, 116, 143, 166, 192, 219 },
+    { 26,  34,  62,  75,  97, 118, 145, 167, 194, 217 },
+    { 25,  33,  56,  70,  91, 113, 143, 165, 196, 223 },
+    { 21,  34,  51,  72,  97, 117, 145, 171, 196, 222 },
+    { 20,  29,  50,  67,  90, 117, 144, 168, 197, 221 },
+    { 22,  31,  48,  66,  95, 117, 146, 168, 196, 222 },
+    { 24,  33,  51,  77, 116, 134, 158, 180, 200, 224 },
+    { 21,  28,  70,  87, 106, 124, 149, 170, 194, 217 },
+    { 26,  33,  53,  64,  83, 117, 152, 173, 204, 225 },
+    { 27,  34,  65,  95, 108, 129, 155, 174, 210, 225 },
+    { 20,  26,  72,  99, 113, 131, 154, 176, 200, 219 },
+    { 34,  43,  61,  78,  93, 114, 155, 177, 205, 229 },
+    { 23,  29,  54,  97, 124, 138, 163, 179, 209, 229 },
+    { 30,  38,  56,  89, 118, 129, 158, 178, 200, 231 },
+    { 21,  29,  49,  63,  85, 111, 142, 163, 193, 222 },
+    { 27,  48,  77, 103, 133, 158, 179, 196, 215, 232 },
+    { 29,  47,  74,  99, 124, 151, 176, 198, 220, 237 },
+    { 33,  42,  61,  76,  93, 121, 155, 174, 207, 225 },
+    { 29,  53,  87, 112, 136, 154, 170, 188, 208, 227 },
+    { 24,  30,  52,  84, 131, 150, 166, 186, 203, 229 },
+    { 37,  48,  64,  84, 104, 118, 156, 177, 201, 230 }
+};
+
+const uint8_t ff_silk_lsf_codebook_wb[32][16] = {
+    {  7,  23,  38,  54,  69,  85, 100, 116, 131, 147, 162, 178, 193, 208, 223, 239 },
+    { 13,  25,  41,  55,  69,  83,  98, 112, 127, 142, 157, 171, 187, 203, 220, 236 },
+    { 15,  21,  34,  51,  61,  78,  92, 106, 126, 136, 152, 167, 185, 205, 225, 240 },
+    { 10,  21,  36,  50,  63,  79,  95, 110, 126, 141, 157, 173, 189, 205, 221, 237 },
+    { 17,  20,  37,  51,  59,  78,  89, 107, 123, 134, 150, 164, 184, 205, 224, 240 },
+    { 10,  15,  32,  51,  67,  81,  96, 112, 129, 142, 158, 173, 189, 204, 220, 236 },
+    {  8,  21,  37,  51,  65,  79,  98, 113, 126, 138, 155, 168, 179, 192, 209, 218 },
+    { 12,  15,  34,  55,  63,  78,  87, 108, 118, 131, 148, 167, 185, 203, 219, 236 },
+    { 16,  19,  32,  36,  56,  79,  91, 108, 118, 136, 154, 171, 186, 204, 220, 237 },
+    { 11,  28,  43,  58,  74,  89, 105, 120, 135, 150, 165, 180, 196, 211, 226, 241 },
+    {  6,  16,  33,  46,  60,  75,  92, 107, 123, 137, 156, 169, 185, 199, 214, 225 },
+    { 11,  19,  30,  44,  57,  74,  89, 105, 121, 135, 152, 169, 186, 202, 218, 234 },
+    { 12,  19,  29,  46,  57,  71,  88, 100, 120, 132, 148, 165, 182, 199, 216, 233 },
+    { 17,  23,  35,  46,  56,  77,  92, 106, 123, 134, 152, 167, 185, 204, 222, 237 },
+    { 14,  17,  45,  53,  63,  75,  89, 107, 115, 132, 151, 171, 188, 206, 221, 240 },
+    {  9,  16,  29,  40,  56,  71,  88, 103, 119, 137, 154, 171, 189, 205, 222, 237 },
+    { 16,  19,  36,  48,  57,  76,  87, 105, 118, 132, 150, 167, 185, 202, 218, 236 },
+    { 12,  17,  29,  54,  71,  81,  94, 104, 126, 136, 149, 164, 182, 201, 221, 237 },
+    { 15,  28,  47,  62,  79,  97, 115, 129, 142, 155, 168, 180, 194, 208, 223, 238 },
+    {  8,  14,  30,  45,  62,  78,  94, 111, 127, 143, 159, 175, 192, 207, 223, 239 },
+    { 17,  30,  49,  62,  79,  92, 107, 119, 132, 145, 160, 174, 190, 204, 220, 235 },
+    { 14,  19,  36,  45,  61,  76,  91, 108, 121, 138, 154, 172, 189, 205, 222, 238 },
+    { 12,  18,  31,  45,  60,  76,  91, 107, 123, 138, 154, 171, 187, 204, 221, 236 },
+    { 13,  17,  31,  43,  53,  70,  83, 103, 114, 131, 149, 167, 185, 203, 220, 237 },
+    { 17,  22,  35,  42,  58,  78,  93, 110, 125, 139, 155, 170, 188, 206, 224, 240 },
+    {  8,  15,  34,  50,  67,  83,  99, 115, 131, 146, 162, 178, 193, 209, 224, 239 },
+    { 13,  16,  41,  66,  73,  86,  95, 111, 128, 137, 150, 163, 183, 206, 225, 241 },
+    { 17,  25,  37,  52,  63,  75,  92, 102, 119, 132, 144, 160, 175, 191, 212, 231 },
+    { 19,  31,  49,  65,  83, 100, 117, 133, 147, 161, 174, 187, 200, 213, 227, 242 },
+    { 18,  31,  52,  68,  88, 103, 117, 126, 138, 149, 163, 177, 192, 207, 223, 239 },
+    { 16,  29,  47,  61,  76,  90, 106, 119, 133, 147, 161, 176, 193, 209, 224, 240 },
+    { 15,  21,  35,  50,  61,  73,  86,  97, 110, 119, 129, 141, 175, 198, 218, 237 }
+};
+
+const uint16_t ff_silk_lsf_min_spacing_nbmb[] = {
+    250, 3, 6, 3, 3, 3, 4, 3, 3, 3, 461
+};
+
+const uint16_t ff_silk_lsf_min_spacing_wb[] = {
+    100, 3, 40, 3, 3, 3, 5, 14, 14, 10, 11, 3, 8, 9, 7, 3, 347
+};
+
+const uint8_t ff_silk_lsf_ordering_nbmb[] = {
+    0, 9, 6, 3, 4, 5, 8, 1, 2, 7
+};
+
+const uint8_t ff_silk_lsf_ordering_wb[] = {
+    0, 15, 8, 7, 4, 11, 12, 3, 2, 13, 10, 5, 6, 9, 14, 1
+};
+
+const int16_t ff_silk_cosine[] = { /* (0.12) */
+     4096,  4095,  4091,  4085,
+     4076,  4065,  4052,  4036,
+     4017,  3997,  3973,  3948,
+     3920,  3889,  3857,  3822,
+     3784,  3745,  3703,  3659,
+     3613,  3564,  3513,  3461,
+     3406,  3349,  3290,  3229,
+     3166,  3102,  3035,  2967,
+     2896,  2824,  2751,  2676,
+     2599,  2520,  2440,  2359,
+     2276,  2191,  2106,  2019,
+     1931,  1842,  1751,  1660,
+     1568,  1474,  1380,  1285,
+     1189,  1093,   995,   897,
+      799,   700,   601,   501,
+      401,   301,   201,   101,
+        0,  -101,  -201,  -301,
+     -401,  -501,  -601,  -700,
+     -799,  -897,  -995, -1093,
+    -1189, -1285, -1380, -1474,
+    -1568, -1660, -1751, -1842,
+    -1931, -2019, -2106, -2191,
+    -2276, -2359, -2440, -2520,
+    -2599, -2676, -2751, -2824,
+    -2896, -2967, -3035, -3102,
+    -3166, -3229, -3290, -3349,
+    -3406, -3461, -3513, -3564,
+    -3613, -3659, -3703, -3745,
+    -3784, -3822, -3857, -3889,
+    -3920, -3948, -3973, -3997,
+    -4017, -4036, -4052, -4065,
+    -4076, -4085, -4091, -4095,
+    -4096
+};
+
+const uint16_t ff_silk_pitch_scale[]   = {  4,   6,   8};
+
+const uint16_t ff_silk_pitch_min_lag[] = { 16,  24,  32};
+
+const uint16_t ff_silk_pitch_max_lag[] = {144, 216, 288};
+
+const int8_t ff_silk_pitch_offset_nb10ms[3][2] = {
+    { 0,  0},
+    { 1,  0},
+    { 0,  1}
+};
+
+const int8_t ff_silk_pitch_offset_nb20ms[11][4] = {
+    { 0,  0,  0,  0},
+    { 2,  1,  0, -1},
+    {-1,  0,  1,  2},
+    {-1,  0,  0,  1},
+    {-1,  0,  0,  0},
+    { 0,  0,  0,  1},
+    { 0,  0,  1,  1},
+    { 1,  1,  0,  0},
+    { 1,  0,  0,  0},
+    { 0,  0,  0, -1},
+    { 1,  0,  0, -1}
+};
+
+const int8_t ff_silk_pitch_offset_mbwb10ms[12][2] = {
+    { 0,  0},
+    { 0,  1},
+    { 1,  0},
+    {-1,  1},
+    { 1, -1},
+    {-1,  2},
+    { 2, -1},
+    {-2,  2},
+    { 2, -2},
+    {-2,  3},
+    { 3, -2},
+    {-3,  3}
+};
+
+const int8_t ff_silk_pitch_offset_mbwb20ms[34][4] = {
+    { 0,  0,  0,  0},
+    { 0,  0,  1,  1},
+    { 1,  1,  0,  0},
+    {-1,  0,  0,  0},
+    { 0,  0,  0,  1},
+    { 1,  0,  0,  0},
+    {-1,  0,  0,  1},
+    { 0,  0,  0, -1},
+    {-1,  0,  1,  2},
+    { 1,  0,  0, -1},
+    {-2, -1,  1,  2},
+    { 2,  1,  0, -1},
+    {-2,  0,  0,  2},
+    {-2,  0,  1,  3},
+    { 2,  1, -1, -2},
+    {-3, -1,  1,  3},
+    { 2,  0,  0, -2},
+    { 3,  1,  0, -2},
+    {-3, -1,  2,  4},
+    {-4, -1,  1,  4},
+    { 3,  1, -1, -3},
+    {-4, -1,  2,  5},
+    { 4,  2, -1, -3},
+    { 4,  1, -1, -4},
+    {-5, -1,  2,  6},
+    { 5,  2, -1, -4},
+    {-6, -2,  2,  6},
+    {-5, -2,  2,  5},
+    { 6,  2, -1, -5},
+    {-7, -2,  3,  8},
+    { 6,  2, -2, -6},
+    { 5,  2, -2, -5},
+    { 8,  3, -2, -7},
+    {-9, -3,  3,  9}
+};
+
+const int8_t ff_silk_ltp_filter0_taps[8][5] = {
+    {  4,   6,  24,   7,   5},
+    {  0,   0,   2,   0,   0},
+    { 12,  28,  41,  13,  -4},
+    { -9,  15,  42,  25,  14},
+    {  1,  -2,  62,  41,  -9},
+    {-10,  37,  65,  -4,   3},
+    { -6,   4,  66,   7,  -8},
+    { 16,  14,  38,  -3,  33}
+};
+
+const int8_t ff_silk_ltp_filter1_taps[16][5] = {
+    { 13,  22,  39,  23,  12},
+    { -1,  36,  64,  27,  -6},
+    { -7,  10,  55,  43,  17},
+    {  1,   1,   8,   1,   1},
+    {  6, -11,  74,  53,  -9},
+    {-12,  55,  76, -12,   8},
+    { -3,   3,  93,  27,  -4},
+    { 26,  39,  59,   3,  -8},
+    {  2,   0,  77,  11,   9},
+    { -8,  22,  44,  -6,   7},
+    { 40,   9,  26,   3,   9},
+    { -7,  20, 101,  -7,   4},
+    {  3,  -8,  42,  26,   0},
+    {-15,  33,  68,   2,  23},
+    { -2,  55,  46,  -2,  15},
+    {  3,  -1,  21,  16,  41}
+};
+
+const int8_t ff_silk_ltp_filter2_taps[32][5] = {
+    { -6,  27,  61,  39,   5},
+    {-11,  42,  88,   4,   1},
+    { -2,  60,  65,   6,  -4},
+    { -1,  -5,  73,  56,   1},
+    { -9,  19,  94,  29,  -9},
+    {  0,  12,  99,   6,   4},
+    {  8, -19, 102,  46, -13},
+    {  3,   2,  13,   3,   2},
+    {  9, -21,  84,  72, -18},
+    {-11,  46, 104, -22,   8},
+    { 18,  38,  48,  23,   0},
+    {-16,  70,  83, -21,  11},
+    {  5, -11, 117,  22,  -8},
+    { -6,  23, 117, -12,   3},
+    {  3,  -8,  95,  28,   4},
+    {-10,  15,  77,  60, -15},
+    { -1,   4, 124,   2,  -4},
+    {  3,  38,  84,  24, -25},
+    {  2,  13,  42,  13,  31},
+    { 21,  -4,  56,  46,  -1},
+    { -1,  35,  79, -13,  19},
+    { -7,  65,  88,  -9, -14},
+    { 20,   4,  81,  49, -29},
+    { 20,   0,  75,   3, -17},
+    {  5,  -9,  44,  92,  -8},
+    {  1,  -3,  22,  69,  31},
+    { -6,  95,  41, -12,   5},
+    { 39,  67,  16,  -4,   1},
+    {  0,  -6, 120,  55, -36},
+    {-13,  44, 122,   4, -24},
+    { 81,   5,  11,   3,   7},
+    {  2,   0,   9,  10,  88}
+};
+
+const uint16_t ff_silk_ltp_scale_factor[] = {15565, 12288, 8192};
+
+const uint8_t ff_silk_shell_blocks[3][2] = {
+    { 5, 10}, // NB
+    { 8, 15}, // MB
+    {10, 20}  // WB
+};
+
+const uint8_t ff_silk_quant_offset[2][2] = { /* (0.23) */
+    {25, 60}, // Inactive or Unvoiced
+    { 8, 25}  // Voiced
+};
+
+const int ff_silk_stereo_interp_len[3] = {
+    64, 96, 128
+};
+
+const uint16_t ff_celt_model_tapset[] = { 4, 2, 3, 4 };
+
+const uint16_t ff_celt_model_spread[] = { 32, 7, 9, 30, 32 };
+
+const uint16_t ff_celt_model_alloc_trim[] = {
+    128,   2,   4,   9,  19,  41,  87, 109, 119, 124, 126, 128
+};
+
+const uint16_t ff_celt_model_energy_small[] = { 4, 2, 3, 4 };
+
+const uint8_t ff_celt_freq_bands[] = { /* in steps of 200Hz */
+    0,  1,  2,  3,  4,  5,  6,  7,  8, 10, 12, 14, 16, 20, 24, 28, 34, 40, 48, 60, 78, 100
+};
+
+const uint8_t ff_celt_freq_range[] = {
+    1,  1,  1,  1,  1,  1,  1,  1,  2,  2,  2,  2,  4,  4,  4,  6,  6,  8, 12, 18, 22
+};
+
+const uint8_t ff_celt_log_freq_range[] = {
+    0,  0,  0,  0,  0,  0,  0,  0,  8,  8,  8,  8, 16, 16, 16, 21, 21, 24, 29, 34, 36
+};
+
+/* Positive - increased freqeuency resolution (only possible on transients)
+ * Negative - increased time resolution */
+const int8_t ff_celt_tf_select[4][2][2][2] = {
+    /*          OFF                        ON                Transient frame */
+    /*     OFF        ON             OFF        ON           TF select flag  */
+    /*   OFF  ON    OFF  ON        OFF  ON    OFF  ON        TF change flag  */
+    { { { 0, -1 }, { 0, -1 } }, { { 0, -1 }, { 0, -1 } } }, /* 120 */
+    { { { 0, -1 }, { 0, -2 } }, { { 1,  0 }, { 1, -1 } } }, /* 240 */
+    { { { 0, -2 }, { 0, -3 } }, { { 2,  0 }, { 1, -1 } } }, /* 480 */
+    { { { 0, -2 }, { 0, -3 } }, { { 3,  0 }, { 1, -1 } } }  /* 960 */
+};
+
+const float ff_celt_mean_energy[] = {
+    6.437500f, 6.250000f, 5.750000f, 5.312500f, 5.062500f,
+    4.812500f, 4.500000f, 4.375000f, 4.875000f, 4.687500f,
+    4.562500f, 4.437500f, 4.875000f, 4.625000f, 4.312500f,
+    4.500000f, 4.375000f, 4.625000f, 4.750000f, 4.437500f,
+    3.750000f, 3.750000f, 3.750000f, 3.750000f, 3.750000f
+};
+
+const float ff_celt_alpha_coef[] = {
+    29440.0f/32768.0f,    26112.0f/32768.0f,    21248.0f/32768.0f,    16384.0f/32768.0f
+};
+
+const float ff_celt_beta_coef[] = {
+    1.0f - (30147.0f/32768.0f), 1.0f - (22282.0f/32768.0f), 1.0f - (12124.0f/32768.0f), 1.0f - (6554.0f/32768.0f),
+};
+
+const uint8_t ff_celt_coarse_energy_dist[4][2][42] = {
+    {
+        {       // 120-sample inter
+             72, 127,  65, 129,  66, 128,  65, 128,  64, 128,  62, 128,  64, 128,
+             64, 128,  92,  78,  92,  79,  92,  78,  90,  79, 116,  41, 115,  40,
+            114,  40, 132,  26, 132,  26, 145,  17, 161,  12, 176,  10, 177,  11
+        }, {    // 120-sample intra
+             24, 179,  48, 138,  54, 135,  54, 132,  53, 134,  56, 133,  55, 132,
+             55, 132,  61, 114,  70,  96,  74,  88,  75,  88,  87,  74,  89,  66,
+             91,  67, 100,  59, 108,  50, 120,  40, 122,  37,  97,  43,  78,  50
+        }
+    }, {
+        {       // 240-sample inter
+             83,  78,  84,  81,  88,  75,  86,  74,  87,  71,  90,  73,  93,  74,
+             93,  74, 109,  40, 114,  36, 117,  34, 117,  34, 143,  17, 145,  18,
+            146,  19, 162,  12, 165,  10, 178,   7, 189,   6, 190,   8, 177,   9
+        }, {    // 240-sample intra
+             23, 178,  54, 115,  63, 102,  66,  98,  69,  99,  74,  89,  71,  91,
+             73,  91,  78,  89,  86,  80,  92,  66,  93,  64, 102,  59, 103,  60,
+            104,  60, 117,  52, 123,  44, 138,  35, 133,  31,  97,  38,  77,  45
+        }
+    }, {
+        {       // 480-sample inter
+             61,  90,  93,  60, 105,  42, 107,  41, 110,  45, 116,  38, 113,  38,
+            112,  38, 124,  26, 132,  27, 136,  19, 140,  20, 155,  14, 159,  16,
+            158,  18, 170,  13, 177,  10, 187,   8, 192,   6, 175,   9, 159,  10
+        }, {    // 480-sample intra
+             21, 178,  59, 110,  71,  86,  75,  85,  84,  83,  91,  66,  88,  73,
+             87,  72,  92,  75,  98,  72, 105,  58, 107,  54, 115,  52, 114,  55,
+            112,  56, 129,  51, 132,  40, 150,  33, 140,  29,  98,  35,  77,  42
+        }
+    }, {
+        {       // 960-sample inter
+             42, 121,  96,  66, 108,  43, 111,  40, 117,  44, 123,  32, 120,  36,
+            119,  33, 127,  33, 134,  34, 139,  21, 147,  23, 152,  20, 158,  25,
+            154,  26, 166,  21, 173,  16, 184,  13, 184,  10, 150,  13, 139,  15
+        }, {    // 960-sample intra
+             22, 178,  63, 114,  74,  82,  84,  83,  92,  82, 103,  62,  96,  72,
+             96,  67, 101,  73, 107,  72, 113,  55, 118,  52, 125,  52, 118,  52,
+            117,  55, 135,  49, 137,  39, 157,  32, 145,  29,  97,  33,  77,  40
+        }
+    }
+};
+
+const uint8_t ff_celt_static_alloc[11][21] = {  /* 1/32 bit/sample */
+    {   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0 },
+    {  90,  80,  75,  69,  63,  56,  49,  40,  34,  29,  20,  18,  10,   0,   0,   0,   0,   0,   0,   0,   0 },
+    { 110, 100,  90,  84,  78,  71,  65,  58,  51,  45,  39,  32,  26,  20,  12,   0,   0,   0,   0,   0,   0 },
+    { 118, 110, 103,  93,  86,  80,  75,  70,  65,  59,  53,  47,  40,  31,  23,  15,   4,   0,   0,   0,   0 },
+    { 126, 119, 112, 104,  95,  89,  83,  78,  72,  66,  60,  54,  47,  39,  32,  25,  17,  12,   1,   0,   0 },
+    { 134, 127, 120, 114, 103,  97,  91,  85,  78,  72,  66,  60,  54,  47,  41,  35,  29,  23,  16,  10,   1 },
+    { 144, 137, 130, 124, 113, 107, 101,  95,  88,  82,  76,  70,  64,  57,  51,  45,  39,  33,  26,  15,   1 },
+    { 152, 145, 138, 132, 123, 117, 111, 105,  98,  92,  86,  80,  74,  67,  61,  55,  49,  43,  36,  20,   1 },
+    { 162, 155, 148, 142, 133, 127, 121, 115, 108, 102,  96,  90,  84,  77,  71,  65,  59,  53,  46,  30,   1 },
+    { 172, 165, 158, 152, 143, 137, 131, 125, 118, 112, 106, 100,  94,  87,  81,  75,  69,  63,  56,  45,  20 },
+    { 200, 200, 200, 200, 200, 200, 200, 200, 198, 193, 188, 183, 178, 173, 168, 163, 158, 153, 148, 129, 104 }
+};
+
+const uint8_t ff_celt_static_caps[4][2][21] = {
+    {       // 120-sample
+        {224, 224, 224, 224, 224, 224, 224, 224, 160, 160,
+         160, 160, 185, 185, 185, 178, 178, 168, 134,  61,  37},
+        {224, 224, 224, 224, 224, 224, 224, 224, 240, 240,
+         240, 240, 207, 207, 207, 198, 198, 183, 144,  66,  40},
+    }, {    // 240-sample
+        {160, 160, 160, 160, 160, 160, 160, 160, 185, 185,
+         185, 185, 193, 193, 193, 183, 183, 172, 138,  64,  38},
+        {240, 240, 240, 240, 240, 240, 240, 240, 207, 207,
+         207, 207, 204, 204, 204, 193, 193, 180, 143,  66,  40},
+    }, {    // 480-sample
+        {185, 185, 185, 185, 185, 185, 185, 185, 193, 193,
+         193, 193, 193, 193, 193, 183, 183, 172, 138,  65,  39},
+        {207, 207, 207, 207, 207, 207, 207, 207, 204, 204,
+         204, 204, 201, 201, 201, 188, 188, 176, 141,  66,  40},
+    }, {    // 960-sample
+        {193, 193, 193, 193, 193, 193, 193, 193, 193, 193,
+         193, 193, 194, 194, 194, 184, 184, 173, 139,  65,  39},
+        {204, 204, 204, 204, 204, 204, 204, 204, 201, 201,
+         201, 201, 198, 198, 198, 187, 187, 175, 140,  66,  40}
+    }
+};
+
+const uint8_t ff_celt_cache_bits[392] = {
+    40, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 40, 15, 23, 28,
+    31, 34, 36, 38, 39, 41, 42, 43, 44, 45, 46, 47, 47, 49, 50,
+    51, 52, 53, 54, 55, 55, 57, 58, 59, 60, 61, 62, 63, 63, 65,
+    66, 67, 68, 69, 70, 71, 71, 40, 20, 33, 41, 48, 53, 57, 61,
+    64, 66, 69, 71, 73, 75, 76, 78, 80, 82, 85, 87, 89, 91, 92,
+    94, 96, 98, 101, 103, 105, 107, 108, 110, 112, 114, 117, 119, 121, 123,
+    124, 126, 128, 40, 23, 39, 51, 60, 67, 73, 79, 83, 87, 91, 94,
+    97, 100, 102, 105, 107, 111, 115, 118, 121, 124, 126, 129, 131, 135, 139,
+    142, 145, 148, 150, 153, 155, 159, 163, 166, 169, 172, 174, 177, 179, 35,
+    28, 49, 65, 78, 89, 99, 107, 114, 120, 126, 132, 136, 141, 145, 149,
+    153, 159, 165, 171, 176, 180, 185, 189, 192, 199, 205, 211, 216, 220, 225,
+    229, 232, 239, 245, 251, 21, 33, 58, 79, 97, 112, 125, 137, 148, 157,
+    166, 174, 182, 189, 195, 201, 207, 217, 227, 235, 243, 251, 17, 35, 63,
+    86, 106, 123, 139, 152, 165, 177, 187, 197, 206, 214, 222, 230, 237, 250,
+    25, 31, 55, 75, 91, 105, 117, 128, 138, 146, 154, 161, 168, 174, 180,
+    185, 190, 200, 208, 215, 222, 229, 235, 240, 245, 255, 16, 36, 65, 89,
+    110, 128, 144, 159, 173, 185, 196, 207, 217, 226, 234, 242, 250, 11, 41,
+    74, 103, 128, 151, 172, 191, 209, 225, 241, 255, 9, 43, 79, 110, 138,
+    163, 186, 207, 227, 246, 12, 39, 71, 99, 123, 144, 164, 182, 198, 214,
+    228, 241, 253, 9, 44, 81, 113, 142, 168, 192, 214, 235, 255, 7, 49,
+    90, 127, 160, 191, 220, 247, 6, 51, 95, 134, 170, 203, 234, 7, 47,
+    87, 123, 155, 184, 212, 237, 6, 52, 97, 137, 174, 208, 240, 5, 57,
+    106, 151, 192, 231, 5, 59, 111, 158, 202, 243, 5, 55, 103, 147, 187,
+    224, 5, 60, 113, 161, 206, 248, 4, 65, 122, 175, 224, 4, 67, 127,
+    182, 234
+};
+
+const int16_t ff_celt_cache_index[105] = {
+    -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 41, 41, 41,
+    82, 82, 123, 164, 200, 222, 0, 0, 0, 0, 0, 0, 0, 0, 41,
+    41, 41, 41, 123, 123, 123, 164, 164, 240, 266, 283, 295, 41, 41, 41,
+    41, 41, 41, 41, 41, 123, 123, 123, 123, 240, 240, 240, 266, 266, 305,
+    318, 328, 336, 123, 123, 123, 123, 123, 123, 123, 123, 240, 240, 240, 240,
+    305, 305, 305, 318, 318, 343, 351, 358, 364, 240, 240, 240, 240, 240, 240,
+    240, 240, 305, 305, 305, 305, 343, 343, 343, 351, 351, 370, 376, 382, 387,
+};
+
+const uint8_t ff_celt_log2_frac[] = {
+    0, 8, 13, 16, 19, 21, 23, 24, 26, 27, 28, 29, 30, 31, 32, 32, 33, 34, 34, 35, 36, 36, 37, 37
+};
+
+const uint8_t ff_celt_bit_interleave[] = {
+    0, 1, 1, 1, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3
+};
+
+const uint8_t ff_celt_bit_deinterleave[] = {
+    0x00, 0x03, 0x0C, 0x0F, 0x30, 0x33, 0x3C, 0x3F,
+    0xC0, 0xC3, 0xCC, 0xCF, 0xF0, 0xF3, 0xFC, 0xFF
+};
+
+const uint8_t ff_celt_hadamard_order[] = {
+    1,   0,
+    3,   0,  2,  1,
+    7,   0,  4,  3,  6,  1,  5,  2,
+    15,  0,  8,  7, 12,  3, 11,  4, 14,  1,  9,  6, 13,  2, 10,  5,
+    0,   1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15
+};
+
+const uint16_t ff_celt_qn_exp2[] = {
+    16384, 17866, 19483, 21247, 23170, 25267, 27554, 30048
+};
+
+const uint32_t ff_celt_pvq_u[1272] = {
+    /* N = 0, K = 0...176 */
+    1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    /* N = 1, K = 1...176 */
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    /* N = 2, K = 2...176 */
+    3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41,
+    43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79,
+    81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113,
+    115, 117, 119, 121, 123, 125, 127, 129, 131, 133, 135, 137, 139, 141, 143,
+    145, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173,
+    175, 177, 179, 181, 183, 185, 187, 189, 191, 193, 195, 197, 199, 201, 203,
+    205, 207, 209, 211, 213, 215, 217, 219, 221, 223, 225, 227, 229, 231, 233,
+    235, 237, 239, 241, 243, 245, 247, 249, 251, 253, 255, 257, 259, 261, 263,
+    265, 267, 269, 271, 273, 275, 277, 279, 281, 283, 285, 287, 289, 291, 293,
+    295, 297, 299, 301, 303, 305, 307, 309, 311, 313, 315, 317, 319, 321, 323,
+    325, 327, 329, 331, 333, 335, 337, 339, 341, 343, 345, 347, 349, 351,
+    /* N = 3, K = 3...176 */
+    13, 25, 41, 61, 85, 113, 145, 181, 221, 265, 313, 365, 421, 481, 545, 613,
+    685, 761, 841, 925, 1013, 1105, 1201, 1301, 1405, 1513, 1625, 1741, 1861,
+    1985, 2113, 2245, 2381, 2521, 2665, 2813, 2965, 3121, 3281, 3445, 3613, 3785,
+    3961, 4141, 4325, 4513, 4705, 4901, 5101, 5305, 5513, 5725, 5941, 6161, 6385,
+    6613, 6845, 7081, 7321, 7565, 7813, 8065, 8321, 8581, 8845, 9113, 9385, 9661,
+    9941, 10225, 10513, 10805, 11101, 11401, 11705, 12013, 12325, 12641, 12961,
+    13285, 13613, 13945, 14281, 14621, 14965, 15313, 15665, 16021, 16381, 16745,
+    17113, 17485, 17861, 18241, 18625, 19013, 19405, 19801, 20201, 20605, 21013,
+    21425, 21841, 22261, 22685, 23113, 23545, 23981, 24421, 24865, 25313, 25765,
+    26221, 26681, 27145, 27613, 28085, 28561, 29041, 29525, 30013, 30505, 31001,
+    31501, 32005, 32513, 33025, 33541, 34061, 34585, 35113, 35645, 36181, 36721,
+    37265, 37813, 38365, 38921, 39481, 40045, 40613, 41185, 41761, 42341, 42925,
+    43513, 44105, 44701, 45301, 45905, 46513, 47125, 47741, 48361, 48985, 49613,
+    50245, 50881, 51521, 52165, 52813, 53465, 54121, 54781, 55445, 56113, 56785,
+    57461, 58141, 58825, 59513, 60205, 60901, 61601,
+    /* N = 4, K = 4...176 */
+    63, 129, 231, 377, 575, 833, 1159, 1561, 2047, 2625, 3303, 4089, 4991, 6017,
+    7175, 8473, 9919, 11521, 13287, 15225, 17343, 19649, 22151, 24857, 27775,
+    30913, 34279, 37881, 41727, 45825, 50183, 54809, 59711, 64897, 70375, 76153,
+    82239, 88641, 95367, 102425, 109823, 117569, 125671, 134137, 142975, 152193,
+    161799, 171801, 182207, 193025, 204263, 215929, 228031, 240577, 253575,
+    267033, 280959, 295361, 310247, 325625, 341503, 357889, 374791, 392217,
+    410175, 428673, 447719, 467321, 487487, 508225, 529543, 551449, 573951,
+    597057, 620775, 645113, 670079, 695681, 721927, 748825, 776383, 804609,
+    833511, 863097, 893375, 924353, 956039, 988441, 1021567, 1055425, 1090023,
+    1125369, 1161471, 1198337, 1235975, 1274393, 1313599, 1353601, 1394407,
+    1436025, 1478463, 1521729, 1565831, 1610777, 1656575, 1703233, 1750759,
+    1799161, 1848447, 1898625, 1949703, 2001689, 2054591, 2108417, 2163175,
+    2218873, 2275519, 2333121, 2391687, 2451225, 2511743, 2573249, 2635751,
+    2699257, 2763775, 2829313, 2895879, 2963481, 3032127, 3101825, 3172583,
+    3244409, 3317311, 3391297, 3466375, 3542553, 3619839, 3698241, 3777767,
+    3858425, 3940223, 4023169, 4107271, 4192537, 4278975, 4366593, 4455399,
+    4545401, 4636607, 4729025, 4822663, 4917529, 5013631, 5110977, 5209575,
+    5309433, 5410559, 5512961, 5616647, 5721625, 5827903, 5935489, 6044391,
+    6154617, 6266175, 6379073, 6493319, 6608921, 6725887, 6844225, 6963943,
+    7085049, 7207551,
+    /* N = 5, K = 5...176 */
+    321, 681, 1289, 2241, 3649, 5641, 8361, 11969, 16641, 22569, 29961, 39041,
+    50049, 63241, 78889, 97281, 118721, 143529, 172041, 204609, 241601, 283401,
+    330409, 383041, 441729, 506921, 579081, 658689, 746241, 842249, 947241,
+    1061761, 1186369, 1321641, 1468169, 1626561, 1797441, 1981449, 2179241,
+    2391489, 2618881, 2862121, 3121929, 3399041, 3694209, 4008201, 4341801,
+    4695809, 5071041, 5468329, 5888521, 6332481, 6801089, 7295241, 7815849,
+    8363841, 8940161, 9545769, 10181641, 10848769, 11548161, 12280841, 13047849,
+    13850241, 14689089, 15565481, 16480521, 17435329, 18431041, 19468809,
+    20549801, 21675201, 22846209, 24064041, 25329929, 26645121, 28010881,
+    29428489, 30899241, 32424449, 34005441, 35643561, 37340169, 39096641,
+    40914369, 42794761, 44739241, 46749249, 48826241, 50971689, 53187081,
+    55473921, 57833729, 60268041, 62778409, 65366401, 68033601, 70781609,
+    73612041, 76526529, 79526721, 82614281, 85790889, 89058241, 92418049,
+    95872041, 99421961, 103069569, 106816641, 110664969, 114616361, 118672641,
+    122835649, 127107241, 131489289, 135983681, 140592321, 145317129, 150160041,
+    155123009, 160208001, 165417001, 170752009, 176215041, 181808129, 187533321,
+    193392681, 199388289, 205522241, 211796649, 218213641, 224775361, 231483969,
+    238341641, 245350569, 252512961, 259831041, 267307049, 274943241, 282741889,
+    290705281, 298835721, 307135529, 315607041, 324252609, 333074601, 342075401,
+    351257409, 360623041, 370174729, 379914921, 389846081, 399970689, 410291241,
+    420810249, 431530241, 442453761, 453583369, 464921641, 476471169, 488234561,
+    500214441, 512413449, 524834241, 537479489, 550351881, 563454121, 576788929,
+    590359041, 604167209, 618216201, 632508801,
+    /* N = 6, K = 6...96 (technically V(109,5) fits in 32 bits, but that can't be
+     achieved by splitting an Opus band) */
+    1683, 3653, 7183, 13073, 22363, 36365, 56695, 85305, 124515, 177045, 246047,
+    335137, 448427, 590557, 766727, 982729, 1244979, 1560549, 1937199, 2383409,
+    2908411, 3522221, 4235671, 5060441, 6009091, 7095093, 8332863, 9737793,
+    11326283, 13115773, 15124775, 17372905, 19880915, 22670725, 25765455,
+    29189457, 32968347, 37129037, 41699767, 46710137, 52191139, 58175189,
+    64696159, 71789409, 79491819, 87841821, 96879431, 106646281, 117185651,
+    128542501, 140763503, 153897073, 167993403, 183104493, 199284183, 216588185,
+    235074115, 254801525, 275831935, 298228865, 322057867, 347386557, 374284647,
+    402823977, 433078547, 465124549, 499040399, 534906769, 572806619, 612825229,
+    655050231, 699571641, 746481891, 795875861, 847850911, 902506913, 959946283,
+    1020274013, 1083597703, 1150027593, 1219676595, 1292660325, 1369097135,
+    1449108145, 1532817275, 1620351277, 1711839767, 1807415257, 1907213187,
+    2011371957, 2120032959,
+    /* N = 7, K = 7...54 (technically V(60,6) fits in 32 bits, but that can't be
+     achieved by splitting an Opus band) */
+    8989, 19825, 40081, 75517, 134245, 227305, 369305, 579125, 880685, 1303777,
+    1884961, 2668525, 3707509, 5064793, 6814249, 9041957, 11847485, 15345233,
+    19665841, 24957661, 31388293, 39146185, 48442297, 59511829, 72616013,
+    88043969, 106114625, 127178701, 151620757, 179861305, 212358985, 249612805,
+    292164445, 340600625, 395555537, 457713341, 527810725, 606639529, 695049433,
+    793950709, 904317037, 1027188385, 1163673953, 1314955181, 1482288821,
+    1667010073, 1870535785, 2094367717,
+    /* N = 8, K = 8...37 (technically V(40,7) fits in 32 bits, but that can't be
+     achieved by splitting an Opus band) */
+    48639, 108545, 224143, 433905, 795455, 1392065, 2340495, 3800305, 5984767,
+    9173505, 13726991, 20103025, 28875327, 40754369, 56610575, 77500017,
+    104692735, 139703809, 184327311, 240673265, 311207743, 398796225, 506750351,
+    638878193, 799538175, 993696769, 1226990095, 1505789553, 1837271615,
+    2229491905,
+    /* N = 9, K = 9...28 (technically V(29,8) fits in 32 bits, but that can't be
+     achieved by splitting an Opus band) */
+    265729, 598417, 1256465, 2485825, 4673345, 8405905, 14546705, 24331777,
+    39490049, 62390545, 96220561, 145198913, 214828609, 312193553, 446304145,
+    628496897, 872893441, 1196924561, 1621925137, 2173806145,
+    /* N = 10, K = 10...24 */
+    1462563, 3317445, 7059735, 14218905, 27298155, 50250765, 89129247, 152951073,
+    254831667, 413442773, 654862247, 1014889769, 1541911931, 2300409629,
+    3375210671,
+    /* N = 11, K = 11...19 (technically V(20,10) fits in 32 bits, but that can't be
+     achieved by splitting an Opus band) */
+    8097453, 18474633, 39753273, 81270333, 158819253, 298199265, 540279585,
+    948062325, 1616336765,
+    /* N = 12, K = 12...18 */
+    45046719, 103274625, 224298231, 464387817, 921406335, 1759885185,
+    3248227095,
+    /* N = 13, K = 13...16 */
+    251595969, 579168825, 1267854873, 2653649025,
+    /* N = 14, K = 14 */
+    1409933619
+};
+
+const float ff_celt_postfilter_taps[3][3] = {
+    { 0.3066406250f, 0.2170410156f, 0.1296386719f },
+    { 0.4638671875f, 0.2680664062f, 0.0           },
+    { 0.7998046875f, 0.1000976562f, 0.0           }
+};
+
+DECLARE_ALIGNED(32, static const float, ff_celt_window_padded)[136] = {
+    0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
+    0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
+    6.7286966e-05f, 0.00060551348f, 0.0016815970f, 0.0032947962f, 0.0054439943f,
+    0.0081276923f, 0.011344001f, 0.015090633f, 0.019364886f, 0.024163635f,
+    0.029483315f, 0.035319905f, 0.041668911f, 0.048525347f, 0.055883718f,
+    0.063737999f, 0.072081616f, 0.080907428f, 0.090207705f, 0.099974111f,
+    0.11019769f, 0.12086883f, 0.13197729f, 0.14351214f, 0.15546177f,
+    0.16781389f, 0.18055550f, 0.19367290f, 0.20715171f, 0.22097682f,
+    0.23513243f, 0.24960208f, 0.26436860f, 0.27941419f, 0.29472040f,
+    0.31026818f, 0.32603788f, 0.34200931f, 0.35816177f, 0.37447407f,
+    0.39092462f, 0.40749142f, 0.42415215f, 0.44088423f, 0.45766484f,
+    0.47447104f, 0.49127978f, 0.50806798f, 0.52481261f, 0.54149077f,
+    0.55807973f, 0.57455701f, 0.59090049f, 0.60708841f, 0.62309951f,
+    0.63891306f, 0.65450896f, 0.66986776f, 0.68497077f, 0.69980010f,
+    0.71433873f, 0.72857055f, 0.74248043f, 0.75605424f, 0.76927895f,
+    0.78214257f, 0.79463430f, 0.80674445f, 0.81846456f, 0.82978733f,
+    0.84070669f, 0.85121779f, 0.86131698f, 0.87100183f, 0.88027111f,
+    0.88912479f, 0.89756398f, 0.90559094f, 0.91320904f, 0.92042270f,
+    0.92723738f, 0.93365955f, 0.93969656f, 0.94535671f, 0.95064907f,
+    0.95558353f, 0.96017067f, 0.96442171f, 0.96834849f, 0.97196334f,
+    0.97527906f, 0.97830883f, 0.98106616f, 0.98356480f, 0.98581869f,
+    0.98784191f, 0.98964856f, 0.99125274f, 0.99266849f, 0.99390969f,
+    0.99499004f, 0.99592297f, 0.99672162f, 0.99739874f, 0.99796667f,
+    0.99843728f, 0.99882195f, 0.99913147f, 0.99937606f, 0.99956527f,
+    0.99970802f, 0.99981248f, 0.99988613f, 0.99993565f, 0.99996697f,
+    0.99998518f, 0.99999457f, 0.99999859f, 0.99999982f, 1.00000000f,
+    1.00000000f, 1.00000000f, 1.00000000f, 1.00000000f, 1.00000000f,
+    1.00000000f, 1.00000000f, 1.00000000f,
+};
+
+const float *ff_celt_window = &ff_celt_window_padded[8];
+
+/* square of the window, used for the postfilter */
+const float ff_celt_window2[120] = {
+    4.5275357e-09f, 3.66647e-07f, 2.82777e-06f, 1.08557e-05f, 2.96371e-05f, 6.60594e-05f,
+    0.000128686f, 0.000227727f, 0.000374999f, 0.000583881f, 0.000869266f, 0.0012475f,
+    0.0017363f, 0.00235471f, 0.00312299f, 0.00406253f, 0.00519576f, 0.00654601f,
+    0.00813743f, 0.00999482f, 0.0121435f, 0.0146093f, 0.017418f, 0.0205957f, 0.0241684f,
+    0.0281615f, 0.0326003f, 0.0375092f, 0.0429118f, 0.0488308f, 0.0552873f, 0.0623012f,
+    0.0698908f, 0.0780723f, 0.0868601f, 0.0962664f, 0.106301f, 0.11697f, 0.12828f,
+    0.140231f, 0.152822f, 0.166049f, 0.179905f, 0.194379f, 0.209457f, 0.225123f, 0.241356f,
+    0.258133f, 0.275428f, 0.293212f, 0.311453f, 0.330116f, 0.349163f, 0.368556f, 0.388253f,
+    0.40821f, 0.428382f, 0.448723f, 0.469185f, 0.48972f, 0.51028f, 0.530815f, 0.551277f,
+    0.571618f, 0.59179f, 0.611747f, 0.631444f, 0.650837f, 0.669884f, 0.688547f, 0.706788f,
+    0.724572f, 0.741867f, 0.758644f, 0.774877f, 0.790543f, 0.805621f, 0.820095f, 0.833951f,
+    0.847178f, 0.859769f, 0.87172f, 0.88303f, 0.893699f, 0.903734f, 0.91314f, 0.921928f,
+    0.930109f, 0.937699f, 0.944713f, 0.951169f, 0.957088f, 0.962491f, 0.9674f, 0.971838f,
+    0.975832f, 0.979404f, 0.982582f, 0.985391f, 0.987857f, 0.990005f, 0.991863f, 0.993454f,
+    0.994804f, 0.995937f, 0.996877f, 0.997645f, 0.998264f, 0.998753f, 0.999131f, 0.999416f,
+    0.999625f, 0.999772f, 0.999871f, 0.999934f, 0.99997f, 0.999989f, 0.999997f, 0.99999964f, 1.0f,
+};
+
+const uint32_t * const ff_celt_pvq_u_row[15] = {
+    ff_celt_pvq_u +    0, ff_celt_pvq_u +  176, ff_celt_pvq_u +  351,
+    ff_celt_pvq_u +  525, ff_celt_pvq_u +  698, ff_celt_pvq_u +  870,
+    ff_celt_pvq_u + 1041, ff_celt_pvq_u + 1131, ff_celt_pvq_u + 1178,
+    ff_celt_pvq_u + 1207, ff_celt_pvq_u + 1226, ff_celt_pvq_u + 1240,
+    ff_celt_pvq_u + 1248, ff_celt_pvq_u + 1254, ff_celt_pvq_u + 1257
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opustab.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opustab.h
new file mode 100644
index 000000000..bce5a4283
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/opustab.h
@@ -0,0 +1,161 @@
+/*
+ * Copyright (c) 2012 Andrew D'Addesio
+ * Copyright (c) 2013-2014 Mozilla Corporation
+ * Copyright (c) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_OPUSTAB_H
+#define AVCODEC_OPUSTAB_H
+
+#include "libavutil/mem.h"
+
+#include <stdint.h>
+
+extern const uint8_t  ff_celt_band_end[];
+
+extern const uint8_t  ff_opus_default_coupled_streams[];
+
+extern const uint16_t ff_silk_model_stereo_s1[];
+extern const uint16_t ff_silk_model_stereo_s2[];
+extern const uint16_t ff_silk_model_stereo_s3[];
+extern const uint16_t ff_silk_model_mid_only[];
+
+extern const uint16_t ff_silk_model_frame_type_inactive[];
+extern const uint16_t ff_silk_model_frame_type_active[];
+
+extern const uint16_t ff_silk_model_gain_highbits[3][9];
+extern const uint16_t ff_silk_model_gain_lowbits[];
+extern const uint16_t ff_silk_model_gain_delta[];
+
+extern const uint16_t ff_silk_model_lsf_s1[2][2][33];
+extern const uint16_t ff_silk_model_lsf_s2[32][10];
+extern const uint16_t ff_silk_model_lsf_s2_ext[];
+extern const uint16_t ff_silk_model_lsf_interpolation_offset[];
+
+extern const uint16_t ff_silk_model_pitch_highbits[];
+extern const uint16_t ff_silk_model_pitch_lowbits_nb[];
+extern const uint16_t ff_silk_model_pitch_lowbits_mb[];
+extern const uint16_t ff_silk_model_pitch_lowbits_wb[];
+extern const uint16_t ff_silk_model_pitch_delta[];
+extern const uint16_t ff_silk_model_pitch_contour_nb10ms[];
+extern const uint16_t ff_silk_model_pitch_contour_nb20ms[];
+extern const uint16_t ff_silk_model_pitch_contour_mbwb10ms[];
+extern const uint16_t ff_silk_model_pitch_contour_mbwb20ms[];
+
+extern const uint16_t ff_silk_model_ltp_filter[];
+extern const uint16_t ff_silk_model_ltp_filter0_sel[];
+extern const uint16_t ff_silk_model_ltp_filter1_sel[];
+extern const uint16_t ff_silk_model_ltp_filter2_sel[];
+extern const uint16_t ff_silk_model_ltp_scale_index[];
+
+extern const uint16_t ff_silk_model_lcg_seed[];
+
+extern const uint16_t ff_silk_model_exc_rate[2][10];
+
+extern const uint16_t ff_silk_model_pulse_count[11][19];
+extern const uint16_t ff_silk_model_pulse_location[4][168];
+
+extern const uint16_t ff_silk_model_excitation_lsb[];
+extern const uint16_t ff_silk_model_excitation_sign[3][2][7][3];
+
+extern const int16_t  ff_silk_stereo_weights[];
+
+extern const uint8_t  ff_silk_lsf_s2_model_sel_nbmb[32][10];
+extern const uint8_t  ff_silk_lsf_s2_model_sel_wb[32][16];
+
+extern const uint8_t  ff_silk_lsf_pred_weights_nbmb[2][9];
+extern const uint8_t  ff_silk_lsf_pred_weights_wb[2][15];
+
+extern const uint8_t  ff_silk_lsf_weight_sel_nbmb[32][9];
+extern const uint8_t  ff_silk_lsf_weight_sel_wb[32][15];
+
+extern const uint8_t  ff_silk_lsf_codebook_nbmb[32][10];
+extern const uint8_t  ff_silk_lsf_codebook_wb[32][16];
+
+extern const uint16_t ff_silk_lsf_min_spacing_nbmb[];
+extern const uint16_t ff_silk_lsf_min_spacing_wb[];
+
+extern const uint8_t  ff_silk_lsf_ordering_nbmb[];
+extern const uint8_t  ff_silk_lsf_ordering_wb[];
+
+extern const int16_t  ff_silk_cosine[];
+
+extern const uint16_t ff_silk_pitch_scale[];
+extern const uint16_t ff_silk_pitch_min_lag[];
+extern const uint16_t ff_silk_pitch_max_lag[];
+
+extern const int8_t   ff_silk_pitch_offset_nb10ms[3][2];
+extern const int8_t   ff_silk_pitch_offset_nb20ms[11][4];
+extern const int8_t   ff_silk_pitch_offset_mbwb10ms[12][2];
+extern const int8_t   ff_silk_pitch_offset_mbwb20ms[34][4];
+
+extern const int8_t   ff_silk_ltp_filter0_taps[8][5];
+extern const int8_t   ff_silk_ltp_filter1_taps[16][5];
+extern const int8_t   ff_silk_ltp_filter2_taps[32][5];
+
+extern const uint16_t ff_silk_ltp_scale_factor[];
+
+extern const uint8_t  ff_silk_shell_blocks[3][2];
+
+extern const uint8_t  ff_silk_quant_offset[2][2];
+
+extern const int      ff_silk_stereo_interp_len[3];
+
+extern const uint16_t ff_celt_model_tapset[];
+extern const uint16_t ff_celt_model_spread[];
+extern const uint16_t ff_celt_model_alloc_trim[];
+extern const uint16_t ff_celt_model_energy_small[];
+
+extern const uint8_t  ff_celt_freq_bands[];
+extern const uint8_t  ff_celt_freq_range[];
+extern const uint8_t  ff_celt_log_freq_range[];
+
+extern const int8_t   ff_celt_tf_select[4][2][2][2];
+
+extern const float    ff_celt_mean_energy[];
+
+extern const float    ff_celt_alpha_coef[];
+extern const float    ff_celt_beta_coef[];
+
+extern const uint8_t  ff_celt_coarse_energy_dist[4][2][42];
+
+extern const uint8_t  ff_celt_static_alloc[11][21];
+extern const uint8_t  ff_celt_static_caps[4][2][21];
+
+extern const uint8_t  ff_celt_cache_bits[392];
+extern const int16_t  ff_celt_cache_index[105];
+
+extern const uint8_t  ff_celt_log2_frac[];
+
+extern const uint8_t  ff_celt_bit_interleave[];
+extern const uint8_t  ff_celt_bit_deinterleave[];
+
+extern const uint8_t  ff_celt_hadamard_order[];
+
+extern const uint16_t ff_celt_qn_exp2[];
+extern const uint32_t ff_celt_pvq_u[1272];
+
+extern const float    ff_celt_postfilter_taps[3][3];
+
+extern const float    ff_celt_window2[120];
+extern const float   *ff_celt_window;
+
+extern const uint32_t * const ff_celt_pvq_u_row[15];
+
+#endif /* AVCODEC_OPUSTAB_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/parser.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/parser.c
new file mode 100644
index 000000000..3e19810a9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/parser.c
@@ -0,0 +1,334 @@
+/*
+ * Audio and Video frame extraction
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <inttypes.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "libavutil/avassert.h"
+#include "libavutil/internal.h"
+#include "libavutil/mem.h"
+
+#include "internal.h"
+#include "parser.h"
+
+AVCodecParserContext *av_parser_init(int codec_id)
+{
+    AVCodecParserContext *s = NULL;
+    const AVCodecParser *parser;
+    void *i = 0;
+    int ret;
+
+    if (codec_id == AV_CODEC_ID_NONE)
+        return NULL;
+
+    while ((parser = av_parser_iterate(&i))) {
+        if (parser->codec_ids[0] == codec_id ||
+            parser->codec_ids[1] == codec_id ||
+            parser->codec_ids[2] == codec_id ||
+            parser->codec_ids[3] == codec_id ||
+            parser->codec_ids[4] == codec_id)
+            goto found;
+    }
+    return NULL;
+
+found:
+    s = av_mallocz(sizeof(AVCodecParserContext));
+    if (!s)
+        goto err_out;
+    s->parser = (AVCodecParser*)parser;
+    s->priv_data = av_mallocz(parser->priv_data_size);
+    if (!s->priv_data)
+        goto err_out;
+    s->fetch_timestamp=1;
+    s->pict_type = AV_PICTURE_TYPE_I;
+    if (parser->parser_init) {
+        ret = parser->parser_init(s);
+        if (ret != 0)
+            goto err_out;
+    }
+    s->key_frame            = -1;
+#if FF_API_CONVERGENCE_DURATION
+FF_DISABLE_DEPRECATION_WARNINGS
+    s->convergence_duration = 0;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+    s->dts_sync_point       = INT_MIN;
+    s->dts_ref_dts_delta    = INT_MIN;
+    s->pts_dts_delta        = INT_MIN;
+    s->format               = -1;
+
+    return s;
+
+err_out:
+    if (s)
+        av_freep(&s->priv_data);
+    av_free(s);
+    return NULL;
+}
+
+void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove, int fuzzy)
+{
+    int i;
+
+    if (!fuzzy) {
+        s->dts    =
+        s->pts    = AV_NOPTS_VALUE;
+        s->pos    = -1;
+        s->offset = 0;
+    }
+    for (i = 0; i < AV_PARSER_PTS_NB; i++) {
+        if (s->cur_offset + off >= s->cur_frame_offset[i] &&
+            (s->frame_offset < s->cur_frame_offset[i] ||
+             (!s->frame_offset && !s->next_frame_offset)) && // first field/frame
+            // check disabled since MPEG-TS does not send complete PES packets
+            /*s->next_frame_offset + off <*/  s->cur_frame_end[i]){
+
+            if (!fuzzy || s->cur_frame_dts[i] != AV_NOPTS_VALUE) {
+                s->dts    = s->cur_frame_dts[i];
+                s->pts    = s->cur_frame_pts[i];
+                s->pos    = s->cur_frame_pos[i];
+                s->offset = s->next_frame_offset - s->cur_frame_offset[i];
+            }
+            if (remove)
+                s->cur_frame_offset[i] = INT64_MAX;
+            if (s->cur_offset + off < s->cur_frame_end[i])
+                break;
+        }
+    }
+}
+
+int av_parser_parse2(AVCodecParserContext *s, AVCodecContext *avctx,
+                     uint8_t **poutbuf, int *poutbuf_size,
+                     const uint8_t *buf, int buf_size,
+                     int64_t pts, int64_t dts, int64_t pos)
+{
+    int index, i;
+    uint8_t dummy_buf[AV_INPUT_BUFFER_PADDING_SIZE];
+
+    av_assert1(avctx->codec_id != AV_CODEC_ID_NONE);
+
+    /* Parsers only work for the specified codec ids. */
+    av_assert1(avctx->codec_id == s->parser->codec_ids[0] ||
+               avctx->codec_id == s->parser->codec_ids[1] ||
+               avctx->codec_id == s->parser->codec_ids[2] ||
+               avctx->codec_id == s->parser->codec_ids[3] ||
+               avctx->codec_id == s->parser->codec_ids[4]);
+
+    if (!(s->flags & PARSER_FLAG_FETCHED_OFFSET)) {
+        s->next_frame_offset =
+        s->cur_offset        = pos;
+        s->flags            |= PARSER_FLAG_FETCHED_OFFSET;
+    }
+
+    if (buf_size == 0) {
+        /* padding is always necessary even if EOF, so we add it here */
+        memset(dummy_buf, 0, sizeof(dummy_buf));
+        buf = dummy_buf;
+    } else if (s->cur_offset + buf_size != s->cur_frame_end[s->cur_frame_start_index]) { /* skip remainder packets */
+        /* add a new packet descriptor */
+        i = (s->cur_frame_start_index + 1) & (AV_PARSER_PTS_NB - 1);
+        s->cur_frame_start_index = i;
+        s->cur_frame_offset[i]   = s->cur_offset;
+        s->cur_frame_end[i]      = s->cur_offset + buf_size;
+        s->cur_frame_pts[i]      = pts;
+        s->cur_frame_dts[i]      = dts;
+        s->cur_frame_pos[i]      = pos;
+    }
+
+    if (s->fetch_timestamp) {
+        s->fetch_timestamp = 0;
+        s->last_pts        = s->pts;
+        s->last_dts        = s->dts;
+        s->last_pos        = s->pos;
+        ff_fetch_timestamp(s, 0, 0, 0);
+    }
+    /* WARNING: the returned index can be negative */
+    index = s->parser->parser_parse(s, avctx, (const uint8_t **) poutbuf,
+                                    poutbuf_size, buf, buf_size);
+    av_assert0(index > -0x20000000); // The API does not allow returning AVERROR codes
+#define FILL(name) if(s->name > 0 && avctx->name <= 0) avctx->name = s->name
+    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+        FILL(field_order);
+    }
+
+    /* update the file pointer */
+    if (*poutbuf_size) {
+        /* fill the data for the current frame */
+        s->frame_offset = s->next_frame_offset;
+
+        /* offset of the next frame */
+        s->next_frame_offset = s->cur_offset + index;
+        s->fetch_timestamp   = 1;
+    }
+    if (index < 0)
+        index = 0;
+    s->cur_offset += index;
+    return index;
+}
+
+int av_parser_change(AVCodecParserContext *s, AVCodecContext *avctx,
+                     uint8_t **poutbuf, int *poutbuf_size,
+                     const uint8_t *buf, int buf_size, int keyframe)
+{
+    if (s && s->parser->split) {
+        if (avctx->flags  & AV_CODEC_FLAG_GLOBAL_HEADER ||
+            avctx->flags2 & AV_CODEC_FLAG2_LOCAL_HEADER) {
+            int i = s->parser->split(avctx, buf, buf_size);
+            buf      += i;
+            buf_size -= i;
+        }
+    }
+
+    /* cast to avoid warning about discarding qualifiers */
+    *poutbuf      = (uint8_t *) buf;
+    *poutbuf_size = buf_size;
+    if (avctx->extradata) {
+        if (keyframe && (avctx->flags2 & AV_CODEC_FLAG2_LOCAL_HEADER)) {
+            int size = buf_size + avctx->extradata_size;
+
+            *poutbuf_size = size;
+            *poutbuf      = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
+            if (!*poutbuf)
+                return AVERROR(ENOMEM);
+
+            memcpy(*poutbuf, avctx->extradata, avctx->extradata_size);
+            memcpy(*poutbuf + avctx->extradata_size, buf,
+                   buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
+            return 1;
+        }
+    }
+
+    return 0;
+}
+
+void av_parser_close(AVCodecParserContext *s)
+{
+    if (s) {
+        if (s->parser->parser_close)
+            s->parser->parser_close(s);
+        av_freep(&s->priv_data);
+        av_free(s);
+    }
+}
+
+int ff_combine_frame(ParseContext *pc, int next,
+                     const uint8_t **buf, int *buf_size)
+{
+    if (pc->overread) {
+        ff_dlog(NULL, "overread %d, state:%"PRIX32" next:%d index:%d o_index:%d\n",
+                pc->overread, pc->state, next, pc->index, pc->overread_index);
+        ff_dlog(NULL, "%X %X %X %X\n",
+                (*buf)[0], (*buf)[1], (*buf)[2], (*buf)[3]);
+    }
+
+    /* Copy overread bytes from last frame into buffer. */
+    for (; pc->overread > 0; pc->overread--)
+        pc->buffer[pc->index++] = pc->buffer[pc->overread_index++];
+
+    if (next > *buf_size)
+        return AVERROR(EINVAL);
+
+    /* flush remaining if EOF */
+    if (!*buf_size && next == END_NOT_FOUND)
+        next = 0;
+
+    pc->last_index = pc->index;
+
+    /* copy into buffer end return */
+    if (next == END_NOT_FOUND) {
+        void *new_buffer = av_fast_realloc(pc->buffer, &pc->buffer_size,
+                                           *buf_size + pc->index +
+                                           AV_INPUT_BUFFER_PADDING_SIZE);
+
+        if (!new_buffer) {
+            av_log(NULL, AV_LOG_ERROR, "Failed to reallocate parser buffer to %d\n", *buf_size + pc->index + AV_INPUT_BUFFER_PADDING_SIZE);
+            pc->index = 0;
+            return AVERROR(ENOMEM);
+        }
+        pc->buffer = new_buffer;
+        memcpy(&pc->buffer[pc->index], *buf, *buf_size);
+        pc->index += *buf_size;
+        return -1;
+    }
+
+    av_assert0(next >= 0 || pc->buffer);
+
+    *buf_size          =
+    pc->overread_index = pc->index + next;
+
+    /* append to buffer */
+    if (pc->index) {
+        void *new_buffer = av_fast_realloc(pc->buffer, &pc->buffer_size,
+                                           next + pc->index +
+                                           AV_INPUT_BUFFER_PADDING_SIZE);
+        if (!new_buffer) {
+            av_log(NULL, AV_LOG_ERROR, "Failed to reallocate parser buffer to %d\n", next + pc->index + AV_INPUT_BUFFER_PADDING_SIZE);
+            pc->overread_index =
+            pc->index = 0;
+            return AVERROR(ENOMEM);
+        }
+        pc->buffer = new_buffer;
+        if (next > -AV_INPUT_BUFFER_PADDING_SIZE)
+            memcpy(&pc->buffer[pc->index], *buf,
+                   next + AV_INPUT_BUFFER_PADDING_SIZE);
+        pc->index = 0;
+        *buf      = pc->buffer;
+    }
+
+    /* store overread bytes */
+    for (; next < 0; next++) {
+        pc->state   = pc->state   << 8 | pc->buffer[pc->last_index + next];
+        pc->state64 = pc->state64 << 8 | pc->buffer[pc->last_index + next];
+        pc->overread++;
+    }
+
+    if (pc->overread) {
+        ff_dlog(NULL, "overread %d, state:%"PRIX32" next:%d index:%d o_index:%d\n",
+                pc->overread, pc->state, next, pc->index, pc->overread_index);
+        ff_dlog(NULL, "%X %X %X %X\n",
+                (*buf)[0], (*buf)[1], (*buf)[2], (*buf)[3]);
+    }
+
+    return 0;
+}
+
+void ff_parse_close(AVCodecParserContext *s)
+{
+    ParseContext *pc = s->priv_data;
+
+    av_freep(&pc->buffer);
+}
+
+int ff_mpeg4video_split(AVCodecContext *avctx, const uint8_t *buf, int buf_size)
+{
+    uint32_t state = -1;
+    const uint8_t *ptr = buf, *end = buf + buf_size;
+
+    while (ptr < end) {
+        ptr = avpriv_find_start_code(ptr, end, &state);
+        if (state == 0x1B3 || state == 0x1B6)
+            return ptr - 4 - buf;
+    }
+
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/parser.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/parser.h
new file mode 100644
index 000000000..ef35547e9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/parser.h
@@ -0,0 +1,60 @@
+/*
+ * AVCodecParser prototypes and definitions
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_PARSER_H
+#define AVCODEC_PARSER_H
+
+#include "avcodec.h"
+
+typedef struct ParseContext{
+    uint8_t *buffer;
+    int index;
+    int last_index;
+    unsigned int buffer_size;
+    uint32_t state;             ///< contains the last few bytes in MSB order
+    int frame_start_found;
+    int overread;               ///< the number of bytes which where irreversibly read from the next frame
+    int overread_index;         ///< the index into ParseContext.buffer of the overread bytes
+    uint64_t state64;           ///< contains the last 8 bytes in MSB order
+} ParseContext;
+
+#define END_NOT_FOUND (-100)
+
+/**
+ * Combine the (truncated) bitstream to a complete frame.
+ * @return -1 if no complete frame could be created,
+ *         AVERROR(ENOMEM) if there was a memory allocation error
+ */
+int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_size);
+int ff_mpeg4video_split(AVCodecContext *avctx, const uint8_t *buf,
+                        int buf_size);
+void ff_parse_close(AVCodecParserContext *s);
+
+/**
+ * Fetch timestamps for a specific byte within the current access unit.
+ * @param off byte position within the access unit
+ * @param remove Found timestamps will be removed if set to 1, kept if set to 0.
+ * @param fuzzy Only use found value if it is more informative than what we already have
+ */
+void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove, int fuzzy);
+
+#endif /* AVCODEC_PARSER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/parser_list.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/parser_list.c
new file mode 100644
index 000000000..6539d07a6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/parser_list.c
@@ -0,0 +1,3 @@
+static const AVCodecParser * const parser_list[] = {
+    &ff_aac_latm_parser,
+    NULL };
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/parsers.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/parsers.c
new file mode 100644
index 000000000..33a71de8a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/parsers.c
@@ -0,0 +1,110 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/thread.h"
+
+#include "avcodec.h"
+
+extern AVCodecParser ff_aac_parser;
+extern AVCodecParser ff_aac_latm_parser;
+extern AVCodecParser ff_ac3_parser;
+extern AVCodecParser ff_adx_parser;
+extern AVCodecParser ff_av1_parser;
+extern AVCodecParser ff_avs2_parser;
+extern AVCodecParser ff_bmp_parser;
+extern AVCodecParser ff_cavsvideo_parser;
+extern AVCodecParser ff_cook_parser;
+extern AVCodecParser ff_dca_parser;
+extern AVCodecParser ff_dirac_parser;
+extern AVCodecParser ff_dnxhd_parser;
+extern AVCodecParser ff_dpx_parser;
+extern AVCodecParser ff_dvaudio_parser;
+extern AVCodecParser ff_dvbsub_parser;
+extern AVCodecParser ff_dvdsub_parser;
+extern AVCodecParser ff_dvd_nav_parser;
+extern AVCodecParser ff_flac_parser;
+extern AVCodecParser ff_g723_1_parser;
+extern AVCodecParser ff_g729_parser;
+extern AVCodecParser ff_gif_parser;
+extern AVCodecParser ff_gsm_parser;
+extern AVCodecParser ff_h261_parser;
+extern AVCodecParser ff_h263_parser;
+extern AVCodecParser ff_h264_parser;
+extern AVCodecParser ff_hevc_parser;
+extern AVCodecParser ff_mjpeg_parser;
+extern AVCodecParser ff_mlp_parser;
+extern AVCodecParser ff_mpeg4video_parser;
+extern AVCodecParser ff_mpegaudio_parser;
+extern AVCodecParser ff_mpegvideo_parser;
+extern AVCodecParser ff_opus_parser;
+extern AVCodecParser ff_png_parser;
+extern AVCodecParser ff_pnm_parser;
+extern AVCodecParser ff_rv30_parser;
+extern AVCodecParser ff_rv40_parser;
+extern AVCodecParser ff_sbc_parser;
+extern AVCodecParser ff_sipr_parser;
+extern AVCodecParser ff_tak_parser;
+extern AVCodecParser ff_vc1_parser;
+extern AVCodecParser ff_vorbis_parser;
+extern AVCodecParser ff_vp3_parser;
+extern AVCodecParser ff_vp8_parser;
+extern AVCodecParser ff_vp9_parser;
+extern AVCodecParser ff_xma_parser;
+
+#include "libavcodec/parser_list.c"
+
+static AVOnce av_parser_next_init = AV_ONCE_INIT;
+
+static void av_parser_init_next(void)
+{
+    AVCodecParser *prev = NULL, *p;
+    int i = 0;
+    while ((p = (AVCodecParser*)parser_list[i++])) {
+        if (prev)
+            prev->next = p;
+        prev = p;
+    }
+}
+
+AVCodecParser *av_parser_next(const AVCodecParser *p)
+{
+    ff_thread_once(&av_parser_next_init, av_parser_init_next);
+
+    if (p)
+        return p->next;
+    else
+        return (AVCodecParser*)parser_list[0];
+}
+
+const AVCodecParser *av_parser_iterate(void **opaque)
+{
+    uintptr_t i = (uintptr_t)*opaque;
+    const AVCodecParser *p = parser_list[i];
+
+    if (p)
+        *opaque = (void*)(i + 1);
+
+    return p;
+}
+
+void av_register_codec_parser(AVCodecParser *parser)
+{
+    ff_thread_once(&av_parser_next_init, av_parser_init_next);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pixblockdsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pixblockdsp.h
new file mode 100644
index 000000000..e036700ff
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pixblockdsp.h
@@ -0,0 +1,55 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_PIXBLOCKDSP_H
+#define AVCODEC_PIXBLOCKDSP_H
+
+#include <stdint.h>
+
+#include "config.h"
+
+#include "avcodec.h"
+
+typedef struct PixblockDSPContext {
+    void (*get_pixels)(int16_t *av_restrict block /* align 16 */,
+                       const uint8_t *pixels /* align 8 */,
+                       ptrdiff_t stride);
+    void (*diff_pixels)(int16_t *av_restrict block /* align 16 */,
+                        const uint8_t *s1 /* align 8 */,
+                        const uint8_t *s2 /* align 8 */,
+                        ptrdiff_t stride);
+    void (*diff_pixels_unaligned)(int16_t *av_restrict block /* align 16 */,
+                        const uint8_t *s1,
+                        const uint8_t *s2,
+                        ptrdiff_t stride);
+
+} PixblockDSPContext;
+
+void ff_pixblockdsp_init(PixblockDSPContext *c, AVCodecContext *avctx);
+void ff_pixblockdsp_init_alpha(PixblockDSPContext *c, AVCodecContext *avctx,
+                               unsigned high_bit_depth);
+void ff_pixblockdsp_init_arm(PixblockDSPContext *c, AVCodecContext *avctx,
+                             unsigned high_bit_depth);
+void ff_pixblockdsp_init_ppc(PixblockDSPContext *c, AVCodecContext *avctx,
+                             unsigned high_bit_depth);
+void ff_pixblockdsp_init_x86(PixblockDSPContext *c, AVCodecContext *avctx,
+                             unsigned high_bit_depth);
+void ff_pixblockdsp_init_mips(PixblockDSPContext *c, AVCodecContext *avctx,
+                              unsigned high_bit_depth);
+
+#endif /* AVCODEC_PIXBLOCKDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/profiles.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/profiles.c
new file mode 100644
index 000000000..eaf0d68d3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/profiles.c
@@ -0,0 +1,179 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "avcodec.h"
+#include "profiles.h"
+
+#if !CONFIG_SMALL
+
+const AVProfile ff_aac_profiles[] = {
+    { FF_PROFILE_AAC_LOW,   "LC"       },
+    { FF_PROFILE_AAC_HE,    "HE-AAC"   },
+    { FF_PROFILE_AAC_HE_V2, "HE-AACv2" },
+    { FF_PROFILE_AAC_LD,    "LD"       },
+    { FF_PROFILE_AAC_ELD,   "ELD"      },
+    { FF_PROFILE_AAC_MAIN,  "Main" },
+    { FF_PROFILE_AAC_SSR,   "SSR"  },
+    { FF_PROFILE_AAC_LTP,   "LTP"  },
+    { FF_PROFILE_UNKNOWN },
+};
+
+const AVProfile ff_dca_profiles[] = {
+    { FF_PROFILE_DTS,         "DTS"         },
+    { FF_PROFILE_DTS_ES,      "DTS-ES"      },
+    { FF_PROFILE_DTS_96_24,   "DTS 96/24"   },
+    { FF_PROFILE_DTS_HD_HRA,  "DTS-HD HRA"  },
+    { FF_PROFILE_DTS_HD_MA,   "DTS-HD MA"   },
+    { FF_PROFILE_DTS_EXPRESS, "DTS Express" },
+    { FF_PROFILE_UNKNOWN },
+};
+
+const AVProfile ff_dnxhd_profiles[] = {
+  { FF_PROFILE_DNXHD,      "DNXHD"},
+  { FF_PROFILE_DNXHR_LB,   "DNXHR LB"},
+  { FF_PROFILE_DNXHR_SQ,   "DNXHR SQ"},
+  { FF_PROFILE_DNXHR_HQ,   "DNXHR HQ" },
+  { FF_PROFILE_DNXHR_HQX,  "DNXHR HQX"},
+  { FF_PROFILE_DNXHR_444,  "DNXHR 444"},
+  { FF_PROFILE_UNKNOWN },
+};
+
+const AVProfile ff_h264_profiles[] = {
+    { FF_PROFILE_H264_BASELINE,             "Baseline"              },
+    { FF_PROFILE_H264_CONSTRAINED_BASELINE, "Constrained Baseline"  },
+    { FF_PROFILE_H264_MAIN,                 "Main"                  },
+    { FF_PROFILE_H264_EXTENDED,             "Extended"              },
+    { FF_PROFILE_H264_HIGH,                 "High"                  },
+    { FF_PROFILE_H264_HIGH_10,              "High 10"               },
+    { FF_PROFILE_H264_HIGH_10_INTRA,        "High 10 Intra"         },
+    { FF_PROFILE_H264_HIGH_422,             "High 4:2:2"            },
+    { FF_PROFILE_H264_HIGH_422_INTRA,       "High 4:2:2 Intra"      },
+    { FF_PROFILE_H264_HIGH_444,             "High 4:4:4"            },
+    { FF_PROFILE_H264_HIGH_444_PREDICTIVE,  "High 4:4:4 Predictive" },
+    { FF_PROFILE_H264_HIGH_444_INTRA,       "High 4:4:4 Intra"      },
+    { FF_PROFILE_H264_CAVLC_444,            "CAVLC 4:4:4"           },
+    { FF_PROFILE_H264_MULTIVIEW_HIGH,       "Multiview High"        },
+    { FF_PROFILE_H264_STEREO_HIGH,          "Stereo High"           },
+    { FF_PROFILE_UNKNOWN },
+};
+
+const AVProfile ff_hevc_profiles[] = {
+    { FF_PROFILE_HEVC_MAIN,                 "Main"                },
+    { FF_PROFILE_HEVC_MAIN_10,              "Main 10"             },
+    { FF_PROFILE_HEVC_MAIN_STILL_PICTURE,   "Main Still Picture"  },
+    { FF_PROFILE_HEVC_REXT,                 "Rext"                },
+    { FF_PROFILE_UNKNOWN },
+};
+
+const AVProfile ff_jpeg2000_profiles[] = {
+    { FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0,  "JPEG 2000 codestream restriction 0"   },
+    { FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1,  "JPEG 2000 codestream restriction 1"   },
+    { FF_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION, "JPEG 2000 no codestream restrictions" },
+    { FF_PROFILE_JPEG2000_DCINEMA_2K,             "JPEG 2000 digital cinema 2K"          },
+    { FF_PROFILE_JPEG2000_DCINEMA_4K,             "JPEG 2000 digital cinema 4K"          },
+    { FF_PROFILE_UNKNOWN },
+};
+
+const AVProfile ff_mpeg2_video_profiles[] = {
+    { FF_PROFILE_MPEG2_422,          "4:2:2"              },
+    { FF_PROFILE_MPEG2_HIGH,         "High"               },
+    { FF_PROFILE_MPEG2_SS,           "Spatially Scalable" },
+    { FF_PROFILE_MPEG2_SNR_SCALABLE, "SNR Scalable"       },
+    { FF_PROFILE_MPEG2_MAIN,         "Main"               },
+    { FF_PROFILE_MPEG2_SIMPLE,       "Simple"             },
+    { FF_PROFILE_RESERVED,           "Reserved"           },
+    { FF_PROFILE_RESERVED,           "Reserved"           },
+    { FF_PROFILE_UNKNOWN                                  },
+};
+
+const AVProfile ff_mpeg4_video_profiles[] = {
+    { FF_PROFILE_MPEG4_SIMPLE,                    "Simple Profile" },
+    { FF_PROFILE_MPEG4_SIMPLE_SCALABLE,           "Simple Scalable Profile" },
+    { FF_PROFILE_MPEG4_CORE,                      "Core Profile" },
+    { FF_PROFILE_MPEG4_MAIN,                      "Main Profile" },
+    { FF_PROFILE_MPEG4_N_BIT,                     "N-bit Profile" },
+    { FF_PROFILE_MPEG4_SCALABLE_TEXTURE,          "Scalable Texture Profile" },
+    { FF_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION,     "Simple Face Animation Profile" },
+    { FF_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE,    "Basic Animated Texture Profile" },
+    { FF_PROFILE_MPEG4_HYBRID,                    "Hybrid Profile" },
+    { FF_PROFILE_MPEG4_ADVANCED_REAL_TIME,        "Advanced Real Time Simple Profile" },
+    { FF_PROFILE_MPEG4_CORE_SCALABLE,             "Code Scalable Profile" },
+    { FF_PROFILE_MPEG4_ADVANCED_CODING,           "Advanced Coding Profile" },
+    { FF_PROFILE_MPEG4_ADVANCED_CORE,             "Advanced Core Profile" },
+    { FF_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE, "Advanced Scalable Texture Profile" },
+    { FF_PROFILE_MPEG4_SIMPLE_STUDIO,             "Simple Studio Profile" },
+    { FF_PROFILE_MPEG4_ADVANCED_SIMPLE,           "Advanced Simple Profile" },
+    { FF_PROFILE_UNKNOWN },
+};
+
+const AVProfile ff_vc1_profiles[] = {
+    { FF_PROFILE_VC1_SIMPLE,   "Simple"   },
+    { FF_PROFILE_VC1_MAIN,     "Main"     },
+    { FF_PROFILE_VC1_COMPLEX,  "Complex"  },
+    { FF_PROFILE_VC1_ADVANCED, "Advanced" },
+    { FF_PROFILE_UNKNOWN },
+};
+
+const AVProfile ff_vp9_profiles[] = {
+    { FF_PROFILE_VP9_0, "Profile 0" },
+    { FF_PROFILE_VP9_1, "Profile 1" },
+    { FF_PROFILE_VP9_2, "Profile 2" },
+    { FF_PROFILE_VP9_3, "Profile 3" },
+    { FF_PROFILE_UNKNOWN },
+};
+
+const AVProfile ff_av1_profiles[] = {
+    { FF_PROFILE_AV1_MAIN,         "Main" },
+    { FF_PROFILE_AV1_HIGH,         "High" },
+    { FF_PROFILE_AV1_PROFESSIONAL, "Professional" },
+    { FF_PROFILE_UNKNOWN },
+};
+
+const AVProfile ff_sbc_profiles[] = {
+    { FF_PROFILE_SBC_MSBC, "mSBC" },
+    { FF_PROFILE_UNKNOWN },
+};
+
+const AVProfile ff_prores_profiles[] = {
+    { FF_PROFILE_PRORES_PROXY,    "Proxy"    },
+    { FF_PROFILE_PRORES_LT,       "LT"       },
+    { FF_PROFILE_PRORES_STANDARD, "Standard" },
+    { FF_PROFILE_PRORES_HQ,       "HQ"       },
+    { FF_PROFILE_PRORES_4444,     "4444"     },
+    { FF_PROFILE_PRORES_XQ,       "XQ"       },
+    { FF_PROFILE_UNKNOWN }
+};
+
+const AVProfile ff_mjpeg_profiles[] = {
+    { FF_PROFILE_MJPEG_HUFFMAN_BASELINE_DCT,            "Baseline"    },
+    { FF_PROFILE_MJPEG_HUFFMAN_EXTENDED_SEQUENTIAL_DCT, "Sequential"  },
+    { FF_PROFILE_MJPEG_HUFFMAN_PROGRESSIVE_DCT,         "Progressive" },
+    { FF_PROFILE_MJPEG_HUFFMAN_LOSSLESS,                "Lossless"    },
+    { FF_PROFILE_MJPEG_JPEG_LS,                         "JPEG LS"     },
+    { FF_PROFILE_UNKNOWN }
+};
+
+const AVProfile ff_arib_caption_profiles[] = {
+    { FF_PROFILE_ARIB_PROFILE_A, "Profile A" },
+    { FF_PROFILE_ARIB_PROFILE_C, "Profile C" },
+    { FF_PROFILE_UNKNOWN }
+};
+
+#endif /* !CONFIG_SMALL */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/profiles.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/profiles.h
new file mode 100644
index 000000000..a53b67e7f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/profiles.h
@@ -0,0 +1,40 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_PROFILES_H
+#define AVCODEC_PROFILES_H
+
+#include "avcodec.h"
+
+extern const AVProfile ff_aac_profiles[];
+extern const AVProfile ff_dca_profiles[];
+extern const AVProfile ff_dnxhd_profiles[];
+extern const AVProfile ff_h264_profiles[];
+extern const AVProfile ff_hevc_profiles[];
+extern const AVProfile ff_jpeg2000_profiles[];
+extern const AVProfile ff_mpeg2_video_profiles[];
+extern const AVProfile ff_mpeg4_video_profiles[];
+extern const AVProfile ff_vc1_profiles[];
+extern const AVProfile ff_vp9_profiles[];
+extern const AVProfile ff_av1_profiles[];
+extern const AVProfile ff_sbc_profiles[];
+extern const AVProfile ff_prores_profiles[];
+extern const AVProfile ff_mjpeg_profiles[];
+extern const AVProfile ff_arib_caption_profiles[];
+
+#endif /* AVCODEC_PROFILES_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/psymodel.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/psymodel.c
new file mode 100644
index 000000000..2b5f111fb
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/psymodel.c
@@ -0,0 +1,161 @@
+/*
+ * audio encoder psychoacoustic model
+ * Copyright (C) 2008 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <string.h>
+
+#include "avcodec.h"
+#include "psymodel.h"
+#include "iirfilter.h"
+#include "libavutil/mem.h"
+
+extern const FFPsyModel ff_aac_psy_model;
+
+av_cold int ff_psy_init(FFPsyContext *ctx, AVCodecContext *avctx, int num_lens,
+                        const uint8_t **bands, const int* num_bands,
+                        int num_groups, const uint8_t *group_map)
+{
+    int i, j, k = 0;
+
+    ctx->avctx = avctx;
+    ctx->ch        = av_mallocz_array(sizeof(ctx->ch[0]), avctx->channels * 2);
+    ctx->group     = av_mallocz_array(sizeof(ctx->group[0]), num_groups);
+    ctx->bands     = av_malloc_array (sizeof(ctx->bands[0]),      num_lens);
+    ctx->num_bands = av_malloc_array (sizeof(ctx->num_bands[0]),  num_lens);
+    ctx->cutoff    = avctx->cutoff;
+
+    if (!ctx->ch || !ctx->group || !ctx->bands || !ctx->num_bands) {
+        ff_psy_end(ctx);
+        return AVERROR(ENOMEM);
+    }
+
+    memcpy(ctx->bands,     bands,     sizeof(ctx->bands[0])     *  num_lens);
+    memcpy(ctx->num_bands, num_bands, sizeof(ctx->num_bands[0]) *  num_lens);
+
+    /* assign channels to groups (with virtual channels for coupling) */
+    for (i = 0; i < num_groups; i++) {
+        /* NOTE: Add 1 to handle the AAC chan_config without modification.
+         *       This has the side effect of allowing an array of 0s to map
+         *       to one channel per group.
+         */
+        ctx->group[i].num_ch = group_map[i] + 1;
+        for (j = 0; j < ctx->group[i].num_ch * 2; j++)
+            ctx->group[i].ch[j]  = &ctx->ch[k++];
+    }
+
+    switch (ctx->avctx->codec_id) {
+    case AV_CODEC_ID_AAC:
+        ctx->model = &ff_aac_psy_model;
+        break;
+    }
+    if (ctx->model->init)
+        return ctx->model->init(ctx);
+    return 0;
+}
+
+FFPsyChannelGroup *ff_psy_find_group(FFPsyContext *ctx, int channel)
+{
+    int i = 0, ch = 0;
+
+    while (ch <= channel)
+        ch += ctx->group[i++].num_ch;
+
+    return &ctx->group[i-1];
+}
+
+av_cold void ff_psy_end(FFPsyContext *ctx)
+{
+    if (ctx->model && ctx->model->end)
+        ctx->model->end(ctx);
+    av_freep(&ctx->bands);
+    av_freep(&ctx->num_bands);
+    av_freep(&ctx->group);
+    av_freep(&ctx->ch);
+}
+
+typedef struct FFPsyPreprocessContext{
+    AVCodecContext *avctx;
+    float stereo_att;
+    struct FFIIRFilterCoeffs *fcoeffs;
+    struct FFIIRFilterState **fstate;
+    struct FFIIRFilterContext fiir;
+}FFPsyPreprocessContext;
+
+#define FILT_ORDER 4
+
+av_cold struct FFPsyPreprocessContext* ff_psy_preprocess_init(AVCodecContext *avctx)
+{
+    FFPsyPreprocessContext *ctx;
+    int i;
+    float cutoff_coeff = 0;
+    ctx        = av_mallocz(sizeof(FFPsyPreprocessContext));
+    if (!ctx)
+        return NULL;
+    ctx->avctx = avctx;
+
+    /* AAC has its own LP method */
+    if (avctx->codec_id != AV_CODEC_ID_AAC) {
+        if (avctx->cutoff > 0)
+            cutoff_coeff = 2.0 * avctx->cutoff / avctx->sample_rate;
+
+        if (cutoff_coeff && cutoff_coeff < 0.98)
+        ctx->fcoeffs = ff_iir_filter_init_coeffs(avctx, FF_FILTER_TYPE_BUTTERWORTH,
+                                                 FF_FILTER_MODE_LOWPASS, FILT_ORDER,
+                                                 cutoff_coeff, 0.0, 0.0);
+        if (ctx->fcoeffs) {
+            ctx->fstate = av_mallocz_array(sizeof(ctx->fstate[0]), avctx->channels);
+            if (!ctx->fstate) {
+                av_free(ctx->fcoeffs);
+                av_free(ctx);
+                return NULL;
+            }
+            for (i = 0; i < avctx->channels; i++)
+                ctx->fstate[i] = ff_iir_filter_init_state(FILT_ORDER);
+        }
+    }
+
+    ff_iir_filter_init(&ctx->fiir);
+
+    return ctx;
+}
+
+void ff_psy_preprocess(struct FFPsyPreprocessContext *ctx, float **audio, int channels)
+{
+    int ch;
+    int frame_size = ctx->avctx->frame_size;
+    FFIIRFilterContext *iir = &ctx->fiir;
+
+    if (ctx->fstate) {
+        for (ch = 0; ch < channels; ch++)
+            iir->filter_flt(ctx->fcoeffs, ctx->fstate[ch], frame_size,
+                            &audio[ch][frame_size], 1, &audio[ch][frame_size], 1);
+    }
+}
+
+av_cold void ff_psy_preprocess_end(struct FFPsyPreprocessContext *ctx)
+{
+    int i;
+    ff_iir_filter_free_coeffsp(&ctx->fcoeffs);
+    if (ctx->fstate)
+        for (i = 0; i < ctx->avctx->channels; i++)
+            ff_iir_filter_free_statep(&ctx->fstate[i]);
+    av_freep(&ctx->fstate);
+    av_free(ctx);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/psymodel.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/psymodel.h
new file mode 100644
index 000000000..e5f917d49
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/psymodel.h
@@ -0,0 +1,204 @@
+/*
+ * audio encoder psychoacoustic model
+ * Copyright (C) 2008 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_PSYMODEL_H
+#define AVCODEC_PSYMODEL_H
+
+#include "avcodec.h"
+
+/** maximum possible number of bands */
+#define PSY_MAX_BANDS 128
+/** maximum number of channels */
+#define PSY_MAX_CHANS 20
+
+/* cutoff for VBR is purposely increased, since LP filtering actually
+ * hinders VBR performance rather than the opposite
+ */
+#define AAC_CUTOFF_FROM_BITRATE(bit_rate,channels,sample_rate) (bit_rate ? FFMIN3(FFMIN3( \
+    FFMAX(bit_rate/channels/5, bit_rate/channels*15/32 - 5500), \
+    3000 + bit_rate/channels/4, \
+    12000 + bit_rate/channels/16), \
+    22000, \
+    sample_rate / 2): (sample_rate / 2))
+#define AAC_CUTOFF(s) ( \
+    (s->flags & AV_CODEC_FLAG_QSCALE) \
+    ? s->sample_rate / 2 \
+    : AAC_CUTOFF_FROM_BITRATE(s->bit_rate, s->channels, s->sample_rate) \
+)
+
+/**
+ * single band psychoacoustic information
+ */
+typedef struct FFPsyBand {
+    int   bits;
+    float energy;
+    float threshold;
+    float spread;    /* Energy spread over the band */
+} FFPsyBand;
+
+/**
+ * single channel psychoacoustic information
+ */
+typedef struct FFPsyChannel {
+    FFPsyBand psy_bands[PSY_MAX_BANDS]; ///< channel bands information
+    float     entropy;                  ///< total PE for this channel
+} FFPsyChannel;
+
+/**
+ * psychoacoustic information for an arbitrary group of channels
+ */
+typedef struct FFPsyChannelGroup {
+    FFPsyChannel *ch[PSY_MAX_CHANS];  ///< pointers to the individual channels in the group
+    uint8_t num_ch;                   ///< number of channels in this group
+    uint8_t coupling[PSY_MAX_BANDS];  ///< allow coupling for this band in the group
+} FFPsyChannelGroup;
+
+/**
+ * windowing related information
+ */
+typedef struct FFPsyWindowInfo {
+    int window_type[3];               ///< window type (short/long/transitional, etc.) - current, previous and next
+    int window_shape;                 ///< window shape (sine/KBD/whatever)
+    int num_windows;                  ///< number of windows in a frame
+    int grouping[8];                  ///< window grouping (for e.g. AAC)
+    float clipping[8];                ///< maximum absolute normalized intensity in the given window for clip avoidance
+    int *window_sizes;                ///< sequence of window sizes inside one frame (for eg. WMA)
+} FFPsyWindowInfo;
+
+/**
+ * context used by psychoacoustic model
+ */
+typedef struct FFPsyContext {
+    AVCodecContext *avctx;            ///< encoder context
+    const struct FFPsyModel *model;   ///< encoder-specific model functions
+
+    FFPsyChannel      *ch;            ///< single channel information
+    FFPsyChannelGroup *group;         ///< channel group information
+    int num_groups;                   ///< number of channel groups
+    int cutoff;                       ///< lowpass frequency cutoff for analysis
+
+    uint8_t **bands;                  ///< scalefactor band sizes for possible frame sizes
+    int     *num_bands;               ///< number of scalefactor bands for possible frame sizes
+    int num_lens;                     ///< number of scalefactor band sets
+
+    struct {
+        int size;                     ///< size of the bitresevoir in bits
+        int bits;                     ///< number of bits used in the bitresevoir
+        int alloc;                    ///< number of bits allocated by the psy, or -1 if no allocation was done
+    } bitres;
+
+    void* model_priv_data;            ///< psychoacoustic model implementation private data
+} FFPsyContext;
+
+/**
+ * codec-specific psychoacoustic model implementation
+ */
+typedef struct FFPsyModel {
+    const char *name;
+    int  (*init)   (FFPsyContext *apc);
+
+    /**
+     * Suggest window sequence for channel.
+     *
+     * @param ctx       model context
+     * @param audio     samples for the current frame
+     * @param la        lookahead samples (NULL when unavailable)
+     * @param channel   number of channel element to analyze
+     * @param prev_type previous window type
+     *
+     * @return suggested window information in a structure
+     */
+    FFPsyWindowInfo (*window)(FFPsyContext *ctx, const float *audio, const float *la, int channel, int prev_type);
+
+    /**
+     * Perform psychoacoustic analysis and set band info (threshold, energy) for a group of channels.
+     *
+     * @param ctx      model context
+     * @param channel  channel number of the first channel in the group to perform analysis on
+     * @param coeffs   array of pointers to the transformed coefficients
+     * @param wi       window information for the channels in the group
+     */
+    void (*analyze)(FFPsyContext *ctx, int channel, const float **coeffs, const FFPsyWindowInfo *wi);
+
+    void (*end)    (FFPsyContext *apc);
+} FFPsyModel;
+
+/**
+ * Initialize psychoacoustic model.
+ *
+ * @param ctx        model context
+ * @param avctx      codec context
+ * @param num_lens   number of possible frame lengths
+ * @param bands      scalefactor band lengths for all frame lengths
+ * @param num_bands  number of scalefactor bands for all frame lengths
+ * @param num_groups number of channel groups
+ * @param group_map  array with # of channels in group - 1, for each group
+ *
+ * @return zero if successful, a negative value if not
+ */
+int ff_psy_init(FFPsyContext *ctx, AVCodecContext *avctx, int num_lens,
+                const uint8_t **bands, const int *num_bands,
+                int num_groups, const uint8_t *group_map);
+
+/**
+ * Determine what group a channel belongs to.
+ *
+ * @param ctx     psymodel context
+ * @param channel channel to locate the group for
+ *
+ * @return pointer to the FFPsyChannelGroup this channel belongs to
+ */
+FFPsyChannelGroup *ff_psy_find_group(FFPsyContext *ctx, int channel);
+
+/**
+ * Cleanup model context at the end.
+ *
+ * @param ctx model context
+ */
+void ff_psy_end(FFPsyContext *ctx);
+
+
+/**************************************************************************
+ *                       Audio preprocessing stuff.                       *
+ *       This should be moved into some audio filter eventually.          *
+ **************************************************************************/
+struct FFPsyPreprocessContext;
+
+/**
+ * psychoacoustic model audio preprocessing initialization
+ */
+struct FFPsyPreprocessContext *ff_psy_preprocess_init(AVCodecContext *avctx);
+
+/**
+ * Preprocess several channel in audio frame in order to compress it better.
+ *
+ * @param ctx      preprocessing context
+ * @param audio    samples to be filtered (in place)
+ * @param channels number of channel to preprocess
+ */
+void ff_psy_preprocess(struct FFPsyPreprocessContext *ctx, float **audio, int channels);
+
+/**
+ * Cleanup audio preprocessing module.
+ */
+void ff_psy_preprocess_end(struct FFPsyPreprocessContext *ctx);
+
+#endif /* AVCODEC_PSYMODEL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pthread.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pthread.c
new file mode 100644
index 000000000..572471586
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pthread.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2004 Roman Shaposhnik
+ * Copyright (c) 2008 Alexander Strange (astrange@ithinksw.com)
+ *
+ * Many thanks to Steven M. Schultz for providing clever ideas and
+ * to Michael Niedermayer <michaelni@gmx.at> for writing initial
+ * implementation.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Multithreading support functions
+ * @see doc/multithreading.txt
+ */
+
+#include "avcodec.h"
+#include "internal.h"
+#include "pthread_internal.h"
+#include "thread.h"
+
+/**
+ * Set the threading algorithms used.
+ *
+ * Threading requires more than one thread.
+ * Frame threading requires entire frames to be passed to the codec,
+ * and introduces extra decoding delay, so is incompatible with low_delay.
+ *
+ * @param avctx The context.
+ */
+static void validate_thread_parameters(AVCodecContext *avctx)
+{
+    int frame_threading_supported = (avctx->codec->capabilities & AV_CODEC_CAP_FRAME_THREADS)
+                                && !(avctx->flags  & AV_CODEC_FLAG_TRUNCATED)
+                                && !(avctx->flags  & AV_CODEC_FLAG_LOW_DELAY)
+                                && !(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS);
+    if (avctx->thread_count == 1) {
+        avctx->active_thread_type = 0;
+    } else if (frame_threading_supported && (avctx->thread_type & FF_THREAD_FRAME)) {
+        avctx->active_thread_type = FF_THREAD_FRAME;
+    } else if (avctx->codec->capabilities & AV_CODEC_CAP_SLICE_THREADS &&
+               avctx->thread_type & FF_THREAD_SLICE) {
+        avctx->active_thread_type = FF_THREAD_SLICE;
+    } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_AUTO_THREADS)) {
+        avctx->thread_count       = 1;
+        avctx->active_thread_type = 0;
+    }
+
+    if (avctx->thread_count > MAX_AUTO_THREADS)
+        av_log(avctx, AV_LOG_WARNING,
+               "Application has requested %d threads. Using a thread count greater than %d is not recommended.\n",
+               avctx->thread_count, MAX_AUTO_THREADS);
+}
+
+int ff_thread_init(AVCodecContext *avctx)
+{
+    validate_thread_parameters(avctx);
+
+    if (avctx->active_thread_type&FF_THREAD_SLICE)
+        return ff_slice_thread_init(avctx);
+    else if (avctx->active_thread_type&FF_THREAD_FRAME)
+        return ff_frame_thread_init(avctx);
+
+    return 0;
+}
+
+void ff_thread_free(AVCodecContext *avctx)
+{
+    if (avctx->active_thread_type&FF_THREAD_FRAME)
+        ff_frame_thread_free(avctx, avctx->thread_count);
+    else
+        ff_slice_thread_free(avctx);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pthread_frame.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pthread_frame.c
new file mode 100644
index 000000000..36ac0ac1e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pthread_frame.c
@@ -0,0 +1,1013 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Frame multithreading support functions
+ * @see doc/multithreading.txt
+ */
+
+#include "config.h"
+
+#include <stdatomic.h>
+#include <stdint.h>
+
+#include "avcodec.h"
+#include "hwaccel.h"
+#include "internal.h"
+#include "pthread_internal.h"
+#include "thread.h"
+#include "version.h"
+
+#include "libavutil/avassert.h"
+#include "libavutil/buffer.h"
+#include "libavutil/common.h"
+#include "libavutil/cpu.h"
+#include "libavutil/frame.h"
+#include "libavutil/internal.h"
+#include "libavutil/log.h"
+#include "libavutil/mem.h"
+#include "libavutil/opt.h"
+#include "libavutil/thread.h"
+
+enum {
+    ///< Set when the thread is awaiting a packet.
+    STATE_INPUT_READY,
+    ///< Set before the codec has called ff_thread_finish_setup().
+    STATE_SETTING_UP,
+    /**
+     * Set when the codec calls get_buffer().
+     * State is returned to STATE_SETTING_UP afterwards.
+     */
+    STATE_GET_BUFFER,
+     /**
+      * Set when the codec calls get_format().
+      * State is returned to STATE_SETTING_UP afterwards.
+      */
+    STATE_GET_FORMAT,
+    ///< Set after the codec has called ff_thread_finish_setup().
+    STATE_SETUP_FINISHED,
+};
+
+/**
+ * Context used by codec threads and stored in their AVCodecInternal thread_ctx.
+ */
+typedef struct PerThreadContext {
+    struct FrameThreadContext *parent;
+
+    pthread_t      thread;
+    int            thread_init;
+    pthread_cond_t input_cond;      ///< Used to wait for a new packet from the main thread.
+    pthread_cond_t progress_cond;   ///< Used by child threads to wait for progress to change.
+    pthread_cond_t output_cond;     ///< Used by the main thread to wait for frames to finish.
+
+    pthread_mutex_t mutex;          ///< Mutex used to protect the contents of the PerThreadContext.
+    pthread_mutex_t progress_mutex; ///< Mutex used to protect frame progress values and progress_cond.
+
+    AVCodecContext *avctx;          ///< Context used to decode packets passed to this thread.
+
+    AVPacket       avpkt;           ///< Input packet (for decoding) or output (for encoding).
+
+    AVFrame *frame;                 ///< Output frame (for decoding) or input (for encoding).
+    int     got_frame;              ///< The output of got_picture_ptr from the last avcodec_decode_video() call.
+    int     result;                 ///< The result of the last codec decode/encode() call.
+
+    atomic_int state;
+
+    /**
+     * Array of frames passed to ff_thread_release_buffer().
+     * Frames are released after all threads referencing them are finished.
+     */
+    AVFrame *released_buffers;
+    int  num_released_buffers;
+    int      released_buffers_allocated;
+
+    AVFrame *requested_frame;       ///< AVFrame the codec passed to get_buffer()
+    int      requested_flags;       ///< flags passed to get_buffer() for requested_frame
+
+    const enum AVPixelFormat *available_formats; ///< Format array for get_format()
+    enum AVPixelFormat result_format;            ///< get_format() result
+
+    int die;                        ///< Set when the thread should exit.
+
+    int hwaccel_serializing;
+    int async_serializing;
+
+    atomic_int debug_threads;       ///< Set if the FF_DEBUG_THREADS option is set.
+} PerThreadContext;
+
+/**
+ * Context stored in the client AVCodecInternal thread_ctx.
+ */
+typedef struct FrameThreadContext {
+    PerThreadContext *threads;     ///< The contexts for each thread.
+    PerThreadContext *prev_thread; ///< The last thread submit_packet() was called on.
+
+    pthread_mutex_t buffer_mutex;  ///< Mutex used to protect get/release_buffer().
+    /**
+     * This lock is used for ensuring threads run in serial when hwaccel
+     * is used.
+     */
+    pthread_mutex_t hwaccel_mutex;
+    pthread_mutex_t async_mutex;
+    pthread_cond_t async_cond;
+    int async_lock;
+
+    int next_decoding;             ///< The next context to submit a packet to.
+    int next_finished;             ///< The next context to return output from.
+
+    int delaying;                  /**<
+                                    * Set for the first N packets, where N is the number of threads.
+                                    * While it is set, ff_thread_en/decode_frame won't return any results.
+                                    */
+} FrameThreadContext;
+
+#define THREAD_SAFE_CALLBACKS(avctx) \
+((avctx)->thread_safe_callbacks || (avctx)->get_buffer2 == avcodec_default_get_buffer2)
+
+static void async_lock(FrameThreadContext *fctx)
+{
+    pthread_mutex_lock(&fctx->async_mutex);
+    while (fctx->async_lock)
+        pthread_cond_wait(&fctx->async_cond, &fctx->async_mutex);
+    fctx->async_lock = 1;
+    pthread_mutex_unlock(&fctx->async_mutex);
+}
+
+static void async_unlock(FrameThreadContext *fctx)
+{
+    pthread_mutex_lock(&fctx->async_mutex);
+    av_assert0(fctx->async_lock);
+    fctx->async_lock = 0;
+    pthread_cond_broadcast(&fctx->async_cond);
+    pthread_mutex_unlock(&fctx->async_mutex);
+}
+
+/**
+ * Codec worker thread.
+ *
+ * Automatically calls ff_thread_finish_setup() if the codec does
+ * not provide an update_thread_context method, or if the codec returns
+ * before calling it.
+ */
+static attribute_align_arg void *frame_worker_thread(void *arg)
+{
+    PerThreadContext *p = arg;
+    AVCodecContext *avctx = p->avctx;
+    const AVCodec *codec = avctx->codec;
+
+    pthread_mutex_lock(&p->mutex);
+    while (1) {
+        while (atomic_load(&p->state) == STATE_INPUT_READY && !p->die)
+            pthread_cond_wait(&p->input_cond, &p->mutex);
+
+        if (p->die) break;
+
+        if (!codec->update_thread_context && THREAD_SAFE_CALLBACKS(avctx))
+            ff_thread_finish_setup(avctx);
+
+        /* If a decoder supports hwaccel, then it must call ff_get_format().
+         * Since that call must happen before ff_thread_finish_setup(), the
+         * decoder is required to implement update_thread_context() and call
+         * ff_thread_finish_setup() manually. Therefore the above
+         * ff_thread_finish_setup() call did not happen and hwaccel_serializing
+         * cannot be true here. */
+        av_assert0(!p->hwaccel_serializing);
+
+        /* if the previous thread uses hwaccel then we take the lock to ensure
+         * the threads don't run concurrently */
+        if (avctx->hwaccel) {
+            pthread_mutex_lock(&p->parent->hwaccel_mutex);
+            p->hwaccel_serializing = 1;
+        }
+
+        av_frame_unref(p->frame);
+        p->got_frame = 0;
+        p->result = codec->decode(avctx, p->frame, &p->got_frame, &p->avpkt);
+
+        if ((p->result < 0 || !p->got_frame) && p->frame->buf[0]) {
+            if (avctx->internal->allocate_progress)
+                av_log(avctx, AV_LOG_ERROR, "A frame threaded decoder did not "
+                       "free the frame on failure. This is a bug, please report it.\n");
+            av_frame_unref(p->frame);
+        }
+
+        if (atomic_load(&p->state) == STATE_SETTING_UP)
+            ff_thread_finish_setup(avctx);
+
+        if (p->hwaccel_serializing) {
+            p->hwaccel_serializing = 0;
+            pthread_mutex_unlock(&p->parent->hwaccel_mutex);
+        }
+
+        if (p->async_serializing) {
+            p->async_serializing = 0;
+
+            async_unlock(p->parent);
+        }
+
+        pthread_mutex_lock(&p->progress_mutex);
+
+        atomic_store(&p->state, STATE_INPUT_READY);
+
+        pthread_cond_broadcast(&p->progress_cond);
+        pthread_cond_signal(&p->output_cond);
+        pthread_mutex_unlock(&p->progress_mutex);
+    }
+    pthread_mutex_unlock(&p->mutex);
+
+    return NULL;
+}
+
+/**
+ * Update the next thread's AVCodecContext with values from the reference thread's context.
+ *
+ * @param dst The destination context.
+ * @param src The source context.
+ * @param for_user 0 if the destination is a codec thread, 1 if the destination is the user's thread
+ * @return 0 on success, negative error code on failure
+ */
+static int update_context_from_thread(AVCodecContext *dst, AVCodecContext *src, int for_user)
+{
+    int err = 0;
+
+    if (dst != src && (for_user || !(src->codec_descriptor->props & AV_CODEC_PROP_INTRA_ONLY))) {
+        dst->time_base = src->time_base;
+        dst->framerate = src->framerate;
+        dst->width     = src->width;
+        dst->height    = src->height;
+        dst->pix_fmt   = src->pix_fmt;
+        dst->sw_pix_fmt = src->sw_pix_fmt;
+
+        dst->coded_width  = src->coded_width;
+        dst->coded_height = src->coded_height;
+
+        dst->has_b_frames = src->has_b_frames;
+        dst->idct_algo    = src->idct_algo;
+
+        dst->bits_per_coded_sample = src->bits_per_coded_sample;
+        dst->sample_aspect_ratio   = src->sample_aspect_ratio;
+
+        dst->profile = src->profile;
+        dst->level   = src->level;
+
+        dst->bits_per_raw_sample = src->bits_per_raw_sample;
+        dst->ticks_per_frame     = src->ticks_per_frame;
+        dst->color_primaries     = src->color_primaries;
+
+        dst->color_trc   = src->color_trc;
+        dst->colorspace  = src->colorspace;
+        dst->color_range = src->color_range;
+        dst->chroma_sample_location = src->chroma_sample_location;
+
+        dst->hwaccel = src->hwaccel;
+        dst->hwaccel_context = src->hwaccel_context;
+
+        dst->channels       = src->channels;
+        dst->sample_rate    = src->sample_rate;
+        dst->sample_fmt     = src->sample_fmt;
+        dst->channel_layout = src->channel_layout;
+        dst->internal->hwaccel_priv_data = src->internal->hwaccel_priv_data;
+
+        if (!!dst->hw_frames_ctx != !!src->hw_frames_ctx ||
+            (dst->hw_frames_ctx && dst->hw_frames_ctx->data != src->hw_frames_ctx->data)) {
+            av_buffer_unref(&dst->hw_frames_ctx);
+
+            if (src->hw_frames_ctx) {
+                dst->hw_frames_ctx = av_buffer_ref(src->hw_frames_ctx);
+                if (!dst->hw_frames_ctx)
+                    return AVERROR(ENOMEM);
+            }
+        }
+
+        dst->hwaccel_flags = src->hwaccel_flags;
+    }
+
+    if (for_user) {
+        dst->delay       = src->thread_count - 1;
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+        dst->coded_frame = src->coded_frame;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+    } else {
+        if (dst->codec->update_thread_context)
+            err = dst->codec->update_thread_context(dst, src);
+    }
+
+    return err;
+}
+
+/**
+ * Update the next thread's AVCodecContext with values set by the user.
+ *
+ * @param dst The destination context.
+ * @param src The source context.
+ * @return 0 on success, negative error code on failure
+ */
+static int update_context_from_user(AVCodecContext *dst, AVCodecContext *src)
+{
+#define copy_fields(s, e) memcpy(&dst->s, &src->s, (char*)&dst->e - (char*)&dst->s);
+    dst->flags          = src->flags;
+
+    dst->draw_horiz_band= src->draw_horiz_band;
+    dst->get_buffer2    = src->get_buffer2;
+
+    dst->opaque   = src->opaque;
+    dst->debug    = src->debug;
+    dst->debug_mv = src->debug_mv;
+
+    dst->slice_flags = src->slice_flags;
+    dst->flags2      = src->flags2;
+
+    copy_fields(skip_loop_filter, subtitle_header);
+
+    dst->frame_number     = src->frame_number;
+    dst->reordered_opaque = src->reordered_opaque;
+    dst->thread_safe_callbacks = src->thread_safe_callbacks;
+
+    if (src->slice_count && src->slice_offset) {
+        if (dst->slice_count < src->slice_count) {
+            int err = av_reallocp_array(&dst->slice_offset, src->slice_count,
+                                        sizeof(*dst->slice_offset));
+            if (err < 0)
+                return err;
+        }
+        memcpy(dst->slice_offset, src->slice_offset,
+               src->slice_count * sizeof(*dst->slice_offset));
+    }
+    dst->slice_count = src->slice_count;
+    return 0;
+#undef copy_fields
+}
+
+/// Releases the buffers that this decoding thread was the last user of.
+static void release_delayed_buffers(PerThreadContext *p)
+{
+    FrameThreadContext *fctx = p->parent;
+
+    while (p->num_released_buffers > 0) {
+        AVFrame *f;
+
+        pthread_mutex_lock(&fctx->buffer_mutex);
+
+        // fix extended data in case the caller screwed it up
+        av_assert0(p->avctx->codec_type == AVMEDIA_TYPE_VIDEO ||
+                   p->avctx->codec_type == AVMEDIA_TYPE_AUDIO);
+        f = &p->released_buffers[--p->num_released_buffers];
+        f->extended_data = f->data;
+        av_frame_unref(f);
+
+        pthread_mutex_unlock(&fctx->buffer_mutex);
+    }
+}
+
+static int submit_packet(PerThreadContext *p, AVCodecContext *user_avctx,
+                         AVPacket *avpkt)
+{
+    FrameThreadContext *fctx = p->parent;
+    PerThreadContext *prev_thread = fctx->prev_thread;
+    const AVCodec *codec = p->avctx->codec;
+    int ret;
+
+    if (!avpkt->size && !(codec->capabilities & AV_CODEC_CAP_DELAY))
+        return 0;
+
+    pthread_mutex_lock(&p->mutex);
+
+    ret = update_context_from_user(p->avctx, user_avctx);
+    if (ret) {
+        pthread_mutex_unlock(&p->mutex);
+        return ret;
+    }
+    atomic_store_explicit(&p->debug_threads,
+                          (p->avctx->debug & FF_DEBUG_THREADS) != 0,
+                          memory_order_relaxed);
+
+    release_delayed_buffers(p);
+
+    if (prev_thread) {
+        int err;
+        if (atomic_load(&prev_thread->state) == STATE_SETTING_UP) {
+            pthread_mutex_lock(&prev_thread->progress_mutex);
+            while (atomic_load(&prev_thread->state) == STATE_SETTING_UP)
+                pthread_cond_wait(&prev_thread->progress_cond, &prev_thread->progress_mutex);
+            pthread_mutex_unlock(&prev_thread->progress_mutex);
+        }
+
+        err = update_context_from_thread(p->avctx, prev_thread->avctx, 0);
+        if (err) {
+            pthread_mutex_unlock(&p->mutex);
+            return err;
+        }
+    }
+
+    av_packet_unref(&p->avpkt);
+    ret = av_packet_ref(&p->avpkt, avpkt);
+    if (ret < 0) {
+        pthread_mutex_unlock(&p->mutex);
+        av_log(p->avctx, AV_LOG_ERROR, "av_packet_ref() failed in submit_packet()\n");
+        return ret;
+    }
+
+    atomic_store(&p->state, STATE_SETTING_UP);
+    pthread_cond_signal(&p->input_cond);
+    pthread_mutex_unlock(&p->mutex);
+
+    /*
+     * If the client doesn't have a thread-safe get_buffer(),
+     * then decoding threads call back to the main thread,
+     * and it calls back to the client here.
+     */
+
+    if (!p->avctx->thread_safe_callbacks && (
+         p->avctx->get_format != avcodec_default_get_format ||
+         p->avctx->get_buffer2 != avcodec_default_get_buffer2)) {
+        while (atomic_load(&p->state) != STATE_SETUP_FINISHED && atomic_load(&p->state) != STATE_INPUT_READY) {
+            int call_done = 1;
+            pthread_mutex_lock(&p->progress_mutex);
+            while (atomic_load(&p->state) == STATE_SETTING_UP)
+                pthread_cond_wait(&p->progress_cond, &p->progress_mutex);
+
+            switch (atomic_load_explicit(&p->state, memory_order_acquire)) {
+            case STATE_GET_BUFFER:
+                p->result = ff_get_buffer(p->avctx, p->requested_frame, p->requested_flags);
+                break;
+            case STATE_GET_FORMAT:
+                p->result_format = ff_get_format(p->avctx, p->available_formats);
+                break;
+            default:
+                call_done = 0;
+                break;
+            }
+            if (call_done) {
+                atomic_store(&p->state, STATE_SETTING_UP);
+                pthread_cond_signal(&p->progress_cond);
+            }
+            pthread_mutex_unlock(&p->progress_mutex);
+        }
+    }
+
+    fctx->prev_thread = p;
+    fctx->next_decoding++;
+
+    return 0;
+}
+
+int ff_thread_decode_frame(AVCodecContext *avctx,
+                           AVFrame *picture, int *got_picture_ptr,
+                           AVPacket *avpkt)
+{
+    FrameThreadContext *fctx = avctx->internal->thread_ctx;
+    int finished = fctx->next_finished;
+    PerThreadContext *p;
+    int err;
+
+    /* release the async lock, permitting blocked hwaccel threads to
+     * go forward while we are in this function */
+    async_unlock(fctx);
+
+    /*
+     * Submit a packet to the next decoding thread.
+     */
+
+    p = &fctx->threads[fctx->next_decoding];
+    err = submit_packet(p, avctx, avpkt);
+    if (err)
+        goto finish;
+
+    /*
+     * If we're still receiving the initial packets, don't return a frame.
+     */
+
+    if (fctx->next_decoding > (avctx->thread_count-1-(avctx->codec_id == AV_CODEC_ID_FFV1)))
+        fctx->delaying = 0;
+
+    if (fctx->delaying) {
+        *got_picture_ptr=0;
+        if (avpkt->size) {
+            err = avpkt->size;
+            goto finish;
+        }
+    }
+
+    /*
+     * Return the next available frame from the oldest thread.
+     * If we're at the end of the stream, then we have to skip threads that
+     * didn't output a frame/error, because we don't want to accidentally signal
+     * EOF (avpkt->size == 0 && *got_picture_ptr == 0 && err >= 0).
+     */
+
+    do {
+        p = &fctx->threads[finished++];
+
+        if (atomic_load(&p->state) != STATE_INPUT_READY) {
+            pthread_mutex_lock(&p->progress_mutex);
+            while (atomic_load_explicit(&p->state, memory_order_relaxed) != STATE_INPUT_READY)
+                pthread_cond_wait(&p->output_cond, &p->progress_mutex);
+            pthread_mutex_unlock(&p->progress_mutex);
+        }
+
+        av_frame_move_ref(picture, p->frame);
+        *got_picture_ptr = p->got_frame;
+        picture->pkt_dts = p->avpkt.dts;
+        err = p->result;
+
+        /*
+         * A later call with avkpt->size == 0 may loop over all threads,
+         * including this one, searching for a frame/error to return before being
+         * stopped by the "finished != fctx->next_finished" condition.
+         * Make sure we don't mistakenly return the same frame/error again.
+         */
+        p->got_frame = 0;
+        p->result = 0;
+
+        if (finished >= avctx->thread_count) finished = 0;
+    } while (!avpkt->size && !*got_picture_ptr && err >= 0 && finished != fctx->next_finished);
+
+    update_context_from_thread(avctx, p->avctx, 1);
+
+    if (fctx->next_decoding >= avctx->thread_count) fctx->next_decoding = 0;
+
+    fctx->next_finished = finished;
+
+    /* return the size of the consumed packet if no error occurred */
+    if (err >= 0)
+        err = avpkt->size;
+finish:
+    async_lock(fctx);
+    return err;
+}
+
+void ff_thread_report_progress(ThreadFrame *f, int n, int field)
+{
+    PerThreadContext *p;
+    atomic_int *progress = f->progress ? (atomic_int*)f->progress->data : NULL;
+
+    if (!progress ||
+        atomic_load_explicit(&progress[field], memory_order_relaxed) >= n)
+        return;
+
+    p = f->owner[field]->internal->thread_ctx;
+
+    if (atomic_load_explicit(&p->debug_threads, memory_order_relaxed))
+        av_log(f->owner[field], AV_LOG_DEBUG,
+               "%p finished %d field %d\n", progress, n, field);
+
+    pthread_mutex_lock(&p->progress_mutex);
+
+    atomic_store_explicit(&progress[field], n, memory_order_release);
+
+    pthread_cond_broadcast(&p->progress_cond);
+    pthread_mutex_unlock(&p->progress_mutex);
+}
+
+void ff_thread_await_progress(ThreadFrame *f, int n, int field)
+{
+    PerThreadContext *p;
+    atomic_int *progress = f->progress ? (atomic_int*)f->progress->data : NULL;
+
+    if (!progress ||
+        atomic_load_explicit(&progress[field], memory_order_acquire) >= n)
+        return;
+
+    p = f->owner[field]->internal->thread_ctx;
+
+    if (atomic_load_explicit(&p->debug_threads, memory_order_relaxed))
+        av_log(f->owner[field], AV_LOG_DEBUG,
+               "thread awaiting %d field %d from %p\n", n, field, progress);
+
+    pthread_mutex_lock(&p->progress_mutex);
+    while (atomic_load_explicit(&progress[field], memory_order_relaxed) < n)
+        pthread_cond_wait(&p->progress_cond, &p->progress_mutex);
+    pthread_mutex_unlock(&p->progress_mutex);
+}
+
+void ff_thread_finish_setup(AVCodecContext *avctx) {
+    PerThreadContext *p = avctx->internal->thread_ctx;
+
+    if (!(avctx->active_thread_type&FF_THREAD_FRAME)) return;
+
+    if (avctx->hwaccel && !p->hwaccel_serializing) {
+        pthread_mutex_lock(&p->parent->hwaccel_mutex);
+        p->hwaccel_serializing = 1;
+    }
+
+    /* this assumes that no hwaccel calls happen before ff_thread_finish_setup() */
+    if (avctx->hwaccel &&
+        !(avctx->hwaccel->caps_internal & HWACCEL_CAP_ASYNC_SAFE)) {
+        p->async_serializing = 1;
+
+        async_lock(p->parent);
+    }
+
+    pthread_mutex_lock(&p->progress_mutex);
+    if(atomic_load(&p->state) == STATE_SETUP_FINISHED){
+        av_log(avctx, AV_LOG_WARNING, "Multiple ff_thread_finish_setup() calls\n");
+    }
+
+    atomic_store(&p->state, STATE_SETUP_FINISHED);
+
+    pthread_cond_broadcast(&p->progress_cond);
+    pthread_mutex_unlock(&p->progress_mutex);
+}
+
+/// Waits for all threads to finish.
+static void park_frame_worker_threads(FrameThreadContext *fctx, int thread_count)
+{
+    int i;
+
+    async_unlock(fctx);
+
+    for (i = 0; i < thread_count; i++) {
+        PerThreadContext *p = &fctx->threads[i];
+
+        if (atomic_load(&p->state) != STATE_INPUT_READY) {
+            pthread_mutex_lock(&p->progress_mutex);
+            while (atomic_load(&p->state) != STATE_INPUT_READY)
+                pthread_cond_wait(&p->output_cond, &p->progress_mutex);
+            pthread_mutex_unlock(&p->progress_mutex);
+        }
+        p->got_frame = 0;
+    }
+
+    async_lock(fctx);
+}
+
+void ff_frame_thread_free(AVCodecContext *avctx, int thread_count)
+{
+    FrameThreadContext *fctx = avctx->internal->thread_ctx;
+    const AVCodec *codec = avctx->codec;
+    int i;
+
+    park_frame_worker_threads(fctx, thread_count);
+
+    if (fctx->prev_thread && fctx->prev_thread != fctx->threads)
+        if (update_context_from_thread(fctx->threads->avctx, fctx->prev_thread->avctx, 0) < 0) {
+            av_log(avctx, AV_LOG_ERROR, "Final thread update failed\n");
+            fctx->prev_thread->avctx->internal->is_copy = fctx->threads->avctx->internal->is_copy;
+            fctx->threads->avctx->internal->is_copy = 1;
+        }
+
+    for (i = 0; i < thread_count; i++) {
+        PerThreadContext *p = &fctx->threads[i];
+
+        pthread_mutex_lock(&p->mutex);
+        p->die = 1;
+        pthread_cond_signal(&p->input_cond);
+        pthread_mutex_unlock(&p->mutex);
+
+        if (p->thread_init)
+            pthread_join(p->thread, NULL);
+        p->thread_init=0;
+
+        if (codec->close && p->avctx)
+            codec->close(p->avctx);
+
+        release_delayed_buffers(p);
+        av_frame_free(&p->frame);
+    }
+
+    for (i = 0; i < thread_count; i++) {
+        PerThreadContext *p = &fctx->threads[i];
+
+        pthread_mutex_destroy(&p->mutex);
+        pthread_mutex_destroy(&p->progress_mutex);
+        pthread_cond_destroy(&p->input_cond);
+        pthread_cond_destroy(&p->progress_cond);
+        pthread_cond_destroy(&p->output_cond);
+        av_packet_unref(&p->avpkt);
+        av_freep(&p->released_buffers);
+
+        if (i && p->avctx) {
+            av_freep(&p->avctx->priv_data);
+            av_freep(&p->avctx->slice_offset);
+        }
+
+        if (p->avctx) {
+            av_freep(&p->avctx->internal);
+            av_buffer_unref(&p->avctx->hw_frames_ctx);
+        }
+
+        av_freep(&p->avctx);
+    }
+
+    av_freep(&fctx->threads);
+    pthread_mutex_destroy(&fctx->buffer_mutex);
+    pthread_mutex_destroy(&fctx->hwaccel_mutex);
+    pthread_mutex_destroy(&fctx->async_mutex);
+    pthread_cond_destroy(&fctx->async_cond);
+
+    av_freep(&avctx->internal->thread_ctx);
+
+    if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
+        av_opt_free(avctx->priv_data);
+    avctx->codec = NULL;
+}
+
+int ff_frame_thread_init(AVCodecContext *avctx)
+{
+    int thread_count = avctx->thread_count;
+    const AVCodec *codec = avctx->codec;
+    AVCodecContext *src = avctx;
+    FrameThreadContext *fctx;
+    int i, err = 0;
+
+    if (!thread_count) {
+        int nb_cpus = av_cpu_count();
+#if FF_API_DEBUG_MV
+        if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) || avctx->debug_mv)
+            nb_cpus = 1;
+#endif
+        // use number of cores + 1 as thread count if there is more than one
+        if (nb_cpus > 1)
+            thread_count = avctx->thread_count = FFMIN(nb_cpus + 1, MAX_AUTO_THREADS);
+        else
+            thread_count = avctx->thread_count = 1;
+    }
+
+    if (thread_count <= 1) {
+        avctx->active_thread_type = 0;
+        return 0;
+    }
+
+    avctx->internal->thread_ctx = fctx = av_mallocz(sizeof(FrameThreadContext));
+    if (!fctx)
+        return AVERROR(ENOMEM);
+
+    fctx->threads = av_mallocz_array(thread_count, sizeof(PerThreadContext));
+    if (!fctx->threads) {
+        av_freep(&avctx->internal->thread_ctx);
+        return AVERROR(ENOMEM);
+    }
+
+    pthread_mutex_init(&fctx->buffer_mutex, NULL);
+    pthread_mutex_init(&fctx->hwaccel_mutex, NULL);
+    pthread_mutex_init(&fctx->async_mutex, NULL);
+    pthread_cond_init(&fctx->async_cond, NULL);
+
+    fctx->async_lock = 1;
+    fctx->delaying = 1;
+
+    for (i = 0; i < thread_count; i++) {
+        AVCodecContext *copy = av_malloc(sizeof(AVCodecContext));
+        PerThreadContext *p  = &fctx->threads[i];
+
+        pthread_mutex_init(&p->mutex, NULL);
+        pthread_mutex_init(&p->progress_mutex, NULL);
+        pthread_cond_init(&p->input_cond, NULL);
+        pthread_cond_init(&p->progress_cond, NULL);
+        pthread_cond_init(&p->output_cond, NULL);
+
+        p->frame = av_frame_alloc();
+        if (!p->frame) {
+            av_freep(&copy);
+            err = AVERROR(ENOMEM);
+            goto error;
+        }
+
+        p->parent = fctx;
+        p->avctx  = copy;
+
+        if (!copy) {
+            err = AVERROR(ENOMEM);
+            goto error;
+        }
+
+        *copy = *src;
+
+        copy->internal = av_malloc(sizeof(AVCodecInternal));
+        if (!copy->internal) {
+            copy->priv_data = NULL;
+            err = AVERROR(ENOMEM);
+            goto error;
+        }
+        *copy->internal = *src->internal;
+        copy->internal->thread_ctx = p;
+        copy->internal->last_pkt_props = &p->avpkt;
+
+        if (!i) {
+            src = copy;
+
+            if (codec->init)
+                err = codec->init(copy);
+
+            update_context_from_thread(avctx, copy, 1);
+        } else {
+            copy->priv_data = av_malloc(codec->priv_data_size);
+            if (!copy->priv_data) {
+                err = AVERROR(ENOMEM);
+                goto error;
+            }
+            memcpy(copy->priv_data, src->priv_data, codec->priv_data_size);
+            copy->internal->is_copy = 1;
+
+            if (codec->init_thread_copy)
+                err = codec->init_thread_copy(copy);
+        }
+
+        if (err) goto error;
+
+        atomic_init(&p->debug_threads, (copy->debug & FF_DEBUG_THREADS) != 0);
+
+        err = AVERROR(pthread_create(&p->thread, NULL, frame_worker_thread, p));
+        p->thread_init= !err;
+        if(!p->thread_init)
+            goto error;
+    }
+
+    return 0;
+
+error:
+    ff_frame_thread_free(avctx, i+1);
+
+    return err;
+}
+
+void ff_thread_flush(AVCodecContext *avctx)
+{
+    int i;
+    FrameThreadContext *fctx = avctx->internal->thread_ctx;
+
+    if (!fctx) return;
+
+    park_frame_worker_threads(fctx, avctx->thread_count);
+    if (fctx->prev_thread) {
+        if (fctx->prev_thread != &fctx->threads[0])
+            update_context_from_thread(fctx->threads[0].avctx, fctx->prev_thread->avctx, 0);
+    }
+
+    fctx->next_decoding = fctx->next_finished = 0;
+    fctx->delaying = 1;
+    fctx->prev_thread = NULL;
+    for (i = 0; i < avctx->thread_count; i++) {
+        PerThreadContext *p = &fctx->threads[i];
+        // Make sure decode flush calls with size=0 won't return old frames
+        p->got_frame = 0;
+        av_frame_unref(p->frame);
+        p->result = 0;
+
+        release_delayed_buffers(p);
+
+        if (avctx->codec->flush)
+            avctx->codec->flush(p->avctx);
+    }
+}
+
+int ff_thread_can_start_frame(AVCodecContext *avctx)
+{
+    PerThreadContext *p = avctx->internal->thread_ctx;
+    if ((avctx->active_thread_type&FF_THREAD_FRAME) && atomic_load(&p->state) != STATE_SETTING_UP &&
+        (avctx->codec->update_thread_context || !THREAD_SAFE_CALLBACKS(avctx))) {
+        return 0;
+    }
+    return 1;
+}
+
+static int thread_get_buffer_internal(AVCodecContext *avctx, ThreadFrame *f, int flags)
+{
+    PerThreadContext *p = avctx->internal->thread_ctx;
+    int err;
+
+    f->owner[0] = f->owner[1] = avctx;
+
+    if (!(avctx->active_thread_type & FF_THREAD_FRAME))
+        return ff_get_buffer(avctx, f->f, flags);
+
+    if (atomic_load(&p->state) != STATE_SETTING_UP &&
+        (avctx->codec->update_thread_context || !THREAD_SAFE_CALLBACKS(avctx))) {
+        av_log(avctx, AV_LOG_ERROR, "get_buffer() cannot be called after ff_thread_finish_setup()\n");
+        return -1;
+    }
+
+    if (avctx->internal->allocate_progress) {
+        atomic_int *progress;
+        f->progress = av_buffer_alloc(2 * sizeof(*progress));
+        if (!f->progress) {
+            return AVERROR(ENOMEM);
+        }
+        progress = (atomic_int*)f->progress->data;
+
+        atomic_init(&progress[0], -1);
+        atomic_init(&progress[1], -1);
+    }
+
+    pthread_mutex_lock(&p->parent->buffer_mutex);
+    if (THREAD_SAFE_CALLBACKS(avctx)) {
+        err = ff_get_buffer(avctx, f->f, flags);
+    } else {
+        pthread_mutex_lock(&p->progress_mutex);
+        p->requested_frame = f->f;
+        p->requested_flags = flags;
+        atomic_store_explicit(&p->state, STATE_GET_BUFFER, memory_order_release);
+        pthread_cond_broadcast(&p->progress_cond);
+
+        while (atomic_load(&p->state) != STATE_SETTING_UP)
+            pthread_cond_wait(&p->progress_cond, &p->progress_mutex);
+
+        err = p->result;
+
+        pthread_mutex_unlock(&p->progress_mutex);
+
+    }
+    if (!THREAD_SAFE_CALLBACKS(avctx) && !avctx->codec->update_thread_context)
+        ff_thread_finish_setup(avctx);
+    if (err)
+        av_buffer_unref(&f->progress);
+
+    pthread_mutex_unlock(&p->parent->buffer_mutex);
+
+    return err;
+}
+
+enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
+{
+    enum AVPixelFormat res;
+    PerThreadContext *p = avctx->internal->thread_ctx;
+    if (!(avctx->active_thread_type & FF_THREAD_FRAME) || avctx->thread_safe_callbacks ||
+        avctx->get_format == avcodec_default_get_format)
+        return ff_get_format(avctx, fmt);
+    if (atomic_load(&p->state) != STATE_SETTING_UP) {
+        av_log(avctx, AV_LOG_ERROR, "get_format() cannot be called after ff_thread_finish_setup()\n");
+        return -1;
+    }
+    pthread_mutex_lock(&p->progress_mutex);
+    p->available_formats = fmt;
+    atomic_store(&p->state, STATE_GET_FORMAT);
+    pthread_cond_broadcast(&p->progress_cond);
+
+    while (atomic_load(&p->state) != STATE_SETTING_UP)
+        pthread_cond_wait(&p->progress_cond, &p->progress_mutex);
+
+    res = p->result_format;
+
+    pthread_mutex_unlock(&p->progress_mutex);
+
+    return res;
+}
+
+int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
+{
+    int ret = thread_get_buffer_internal(avctx, f, flags);
+    if (ret < 0)
+        av_log(avctx, AV_LOG_ERROR, "thread_get_buffer() failed\n");
+    return ret;
+}
+
+void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
+{
+    PerThreadContext *p = avctx->internal->thread_ctx;
+    FrameThreadContext *fctx;
+    AVFrame *dst, *tmp;
+    int can_direct_free = !(avctx->active_thread_type & FF_THREAD_FRAME) ||
+                          THREAD_SAFE_CALLBACKS(avctx);
+
+    if (!f->f || !f->f->buf[0])
+        return;
+
+    if (avctx->debug & FF_DEBUG_BUFFERS)
+        av_log(avctx, AV_LOG_DEBUG, "thread_release_buffer called on pic %p\n", f);
+
+    av_buffer_unref(&f->progress);
+    f->owner[0] = f->owner[1] = NULL;
+
+    if (can_direct_free) {
+        av_frame_unref(f->f);
+        return;
+    }
+
+    fctx = p->parent;
+    pthread_mutex_lock(&fctx->buffer_mutex);
+
+    if (p->num_released_buffers + 1 >= INT_MAX / sizeof(*p->released_buffers))
+        goto fail;
+    tmp = av_fast_realloc(p->released_buffers, &p->released_buffers_allocated,
+                          (p->num_released_buffers + 1) *
+                          sizeof(*p->released_buffers));
+    if (!tmp)
+        goto fail;
+    p->released_buffers = tmp;
+
+    dst = &p->released_buffers[p->num_released_buffers];
+    av_frame_move_ref(dst, f->f);
+
+    p->num_released_buffers++;
+
+fail:
+    pthread_mutex_unlock(&fctx->buffer_mutex);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pthread_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pthread_internal.h
new file mode 100644
index 000000000..d2115cbba
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pthread_internal.h
@@ -0,0 +1,34 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_PTHREAD_INTERNAL_H
+#define AVCODEC_PTHREAD_INTERNAL_H
+
+#include "avcodec.h"
+
+/* H.264 slice threading seems to be buggy with more than 16 threads,
+ * limit the number of threads to 16 for automatic detection */
+#define MAX_AUTO_THREADS 16
+
+int ff_slice_thread_init(AVCodecContext *avctx);
+void ff_slice_thread_free(AVCodecContext *avctx);
+
+int ff_frame_thread_init(AVCodecContext *avctx);
+void ff_frame_thread_free(AVCodecContext *avctx, int thread_count);
+
+#endif // AVCODEC_PTHREAD_INTERNAL_H
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pthread_slice.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pthread_slice.c
new file mode 100644
index 000000000..77cfe3c9f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/pthread_slice.c
@@ -0,0 +1,242 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Slice multithreading support functions
+ * @see doc/multithreading.txt
+ */
+
+#include "config.h"
+
+#include "avcodec.h"
+#include "internal.h"
+#include "pthread_internal.h"
+#include "thread.h"
+
+#include "libavutil/avassert.h"
+#include "libavutil/common.h"
+#include "libavutil/cpu.h"
+#include "libavutil/mem.h"
+#include "libavutil/thread.h"
+#include "libavutil/slicethread.h"
+
+typedef int (action_func)(AVCodecContext *c, void *arg);
+typedef int (action_func2)(AVCodecContext *c, void *arg, int jobnr, int threadnr);
+typedef int (main_func)(AVCodecContext *c);
+
+typedef struct SliceThreadContext {
+    AVSliceThread *thread;
+    action_func *func;
+    action_func2 *func2;
+    main_func *mainfunc;
+    void *args;
+    int *rets;
+    int job_size;
+
+    int *entries;
+    int entries_count;
+    int thread_count;
+    pthread_cond_t *progress_cond;
+    pthread_mutex_t *progress_mutex;
+} SliceThreadContext;
+
+static void main_function(void *priv) {
+    AVCodecContext *avctx = priv;
+    SliceThreadContext *c = avctx->internal->thread_ctx;
+    c->mainfunc(avctx);
+}
+
+static void worker_func(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads)
+{
+    AVCodecContext *avctx = priv;
+    SliceThreadContext *c = avctx->internal->thread_ctx;
+    int ret;
+
+    ret = c->func ? c->func(avctx, (char *)c->args + c->job_size * jobnr)
+                  : c->func2(avctx, c->args, jobnr, threadnr);
+    if (c->rets)
+        c->rets[jobnr] = ret;
+}
+
+void ff_slice_thread_free(AVCodecContext *avctx)
+{
+    SliceThreadContext *c = avctx->internal->thread_ctx;
+    int i;
+
+    avpriv_slicethread_free(&c->thread);
+
+    for (i = 0; i < c->thread_count; i++) {
+        pthread_mutex_destroy(&c->progress_mutex[i]);
+        pthread_cond_destroy(&c->progress_cond[i]);
+    }
+
+    av_freep(&c->entries);
+    av_freep(&c->progress_mutex);
+    av_freep(&c->progress_cond);
+    av_freep(&avctx->internal->thread_ctx);
+}
+
+static int thread_execute(AVCodecContext *avctx, action_func* func, void *arg, int *ret, int job_count, int job_size)
+{
+    SliceThreadContext *c = avctx->internal->thread_ctx;
+
+    if (!(avctx->active_thread_type&FF_THREAD_SLICE) || avctx->thread_count <= 1)
+        return avcodec_default_execute(avctx, func, arg, ret, job_count, job_size);
+
+    if (job_count <= 0)
+        return 0;
+
+    c->job_size = job_size;
+    c->args = arg;
+    c->func = func;
+    c->rets = ret;
+
+    avpriv_slicethread_execute(c->thread, job_count, !!c->mainfunc  );
+    return 0;
+}
+
+static int thread_execute2(AVCodecContext *avctx, action_func2* func2, void *arg, int *ret, int job_count)
+{
+    SliceThreadContext *c = avctx->internal->thread_ctx;
+    c->func2 = func2;
+    return thread_execute(avctx, NULL, arg, ret, job_count, 0);
+}
+
+int ff_slice_thread_execute_with_mainfunc(AVCodecContext *avctx, action_func2* func2, main_func *mainfunc, void *arg, int *ret, int job_count)
+{
+    SliceThreadContext *c = avctx->internal->thread_ctx;
+    c->func2 = func2;
+    c->mainfunc = mainfunc;
+    return thread_execute(avctx, NULL, arg, ret, job_count, 0);
+}
+
+int ff_slice_thread_init(AVCodecContext *avctx)
+{
+    SliceThreadContext *c;
+    int thread_count = avctx->thread_count;
+    static void (*mainfunc)(void *);
+
+    // We cannot do this in the encoder init as the threads are created before
+    if (av_codec_is_encoder(avctx->codec) &&
+        avctx->codec_id == AV_CODEC_ID_MPEG1VIDEO &&
+        avctx->height > 2800)
+        thread_count = avctx->thread_count = 1;
+
+    if (!thread_count) {
+        int nb_cpus = av_cpu_count();
+        if  (avctx->height)
+            nb_cpus = FFMIN(nb_cpus, (avctx->height+15)/16);
+        // use number of cores + 1 as thread count if there is more than one
+        if (nb_cpus > 1)
+            thread_count = avctx->thread_count = FFMIN(nb_cpus + 1, MAX_AUTO_THREADS);
+        else
+            thread_count = avctx->thread_count = 1;
+    }
+
+    if (thread_count <= 1) {
+        avctx->active_thread_type = 0;
+        return 0;
+    }
+
+    avctx->internal->thread_ctx = c = av_mallocz(sizeof(*c));
+    mainfunc = avctx->codec->caps_internal & FF_CODEC_CAP_SLICE_THREAD_HAS_MF ? &main_function : NULL;
+    if (!c || (thread_count = avpriv_slicethread_create(&c->thread, avctx, worker_func, mainfunc, thread_count)) <= 1) {
+        if (c)
+            avpriv_slicethread_free(&c->thread);
+        av_freep(&avctx->internal->thread_ctx);
+        avctx->thread_count = 1;
+        avctx->active_thread_type = 0;
+        return 0;
+    }
+    avctx->thread_count = thread_count;
+
+    avctx->execute = thread_execute;
+    avctx->execute2 = thread_execute2;
+    return 0;
+}
+
+void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
+{
+    SliceThreadContext *p = avctx->internal->thread_ctx;
+    int *entries = p->entries;
+
+    pthread_mutex_lock(&p->progress_mutex[thread]);
+    entries[field] +=n;
+    pthread_cond_signal(&p->progress_cond[thread]);
+    pthread_mutex_unlock(&p->progress_mutex[thread]);
+}
+
+void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
+{
+    SliceThreadContext *p  = avctx->internal->thread_ctx;
+    int *entries      = p->entries;
+
+    if (!entries || !field) return;
+
+    thread = thread ? thread - 1 : p->thread_count - 1;
+
+    pthread_mutex_lock(&p->progress_mutex[thread]);
+    while ((entries[field - 1] - entries[field]) < shift){
+        pthread_cond_wait(&p->progress_cond[thread], &p->progress_mutex[thread]);
+    }
+    pthread_mutex_unlock(&p->progress_mutex[thread]);
+}
+
+int ff_alloc_entries(AVCodecContext *avctx, int count)
+{
+    int i;
+
+    if (avctx->active_thread_type & FF_THREAD_SLICE)  {
+        SliceThreadContext *p = avctx->internal->thread_ctx;
+
+        if (p->entries) {
+            av_assert0(p->thread_count == avctx->thread_count);
+            av_freep(&p->entries);
+        }
+
+        p->thread_count  = avctx->thread_count;
+        p->entries       = av_mallocz_array(count, sizeof(int));
+
+        if (!p->progress_mutex) {
+            p->progress_mutex = av_malloc_array(p->thread_count, sizeof(pthread_mutex_t));
+            p->progress_cond  = av_malloc_array(p->thread_count, sizeof(pthread_cond_t));
+        }
+
+        if (!p->entries || !p->progress_mutex || !p->progress_cond) {
+            av_freep(&p->entries);
+            av_freep(&p->progress_mutex);
+            av_freep(&p->progress_cond);
+            return AVERROR(ENOMEM);
+        }
+        p->entries_count  = count;
+
+        for (i = 0; i < p->thread_count; i++) {
+            pthread_mutex_init(&p->progress_mutex[i], NULL);
+            pthread_cond_init(&p->progress_cond[i], NULL);
+        }
+    }
+
+    return 0;
+}
+
+void ff_reset_entries(AVCodecContext *avctx)
+{
+    SliceThreadContext *p = avctx->internal->thread_ctx;
+    memset(p->entries, 0, p->entries_count * sizeof(int));
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/put_bits.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/put_bits.h
new file mode 100644
index 000000000..1ceb1cc76
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/put_bits.h
@@ -0,0 +1,365 @@
+/*
+ * copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * bitstream writer API
+ */
+
+#ifndef AVCODEC_PUT_BITS_H
+#define AVCODEC_PUT_BITS_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+#include "libavutil/intreadwrite.h"
+#include "libavutil/avassert.h"
+
+typedef struct PutBitContext {
+    uint32_t bit_buf;
+    int bit_left;
+    uint8_t *buf, *buf_ptr, *buf_end;
+    int size_in_bits;
+} PutBitContext;
+
+/**
+ * Initialize the PutBitContext s.
+ *
+ * @param buffer the buffer where to put bits
+ * @param buffer_size the size in bytes of buffer
+ */
+static inline void init_put_bits(PutBitContext *s, uint8_t *buffer,
+                                 int buffer_size)
+{
+    if (buffer_size < 0) {
+        buffer_size = 0;
+        buffer      = NULL;
+    }
+
+    s->size_in_bits = 8 * buffer_size;
+    s->buf          = buffer;
+    s->buf_end      = s->buf + buffer_size;
+    s->buf_ptr      = s->buf;
+    s->bit_left     = 32;
+    s->bit_buf      = 0;
+}
+
+/**
+ * Rebase the bit writer onto a reallocated buffer.
+ *
+ * @param buffer the buffer where to put bits
+ * @param buffer_size the size in bytes of buffer,
+ *                    must be larger than the previous size
+ */
+static inline void rebase_put_bits(PutBitContext *s, uint8_t *buffer,
+                                   int buffer_size)
+{
+    av_assert0(8*buffer_size > s->size_in_bits);
+
+    s->buf_end = buffer + buffer_size;
+    s->buf_ptr = buffer + (s->buf_ptr - s->buf);
+    s->buf     = buffer;
+    s->size_in_bits = 8 * buffer_size;
+}
+
+/**
+ * @return the total number of bits written to the bitstream.
+ */
+static inline int put_bits_count(PutBitContext *s)
+{
+    return (s->buf_ptr - s->buf) * 8 + 32 - s->bit_left;
+}
+
+/**
+ * @return the number of bits available in the bitstream.
+ */
+static inline int put_bits_left(PutBitContext* s)
+{
+    return (s->buf_end - s->buf_ptr) * 8 - 32 + s->bit_left;
+}
+
+/**
+ * Pad the end of the output stream with zeros.
+ */
+static inline void flush_put_bits(PutBitContext *s)
+{
+#ifndef BITSTREAM_WRITER_LE
+    if (s->bit_left < 32)
+        s->bit_buf <<= s->bit_left;
+#endif
+    while (s->bit_left < 32) {
+        av_assert0(s->buf_ptr < s->buf_end);
+#ifdef BITSTREAM_WRITER_LE
+        *s->buf_ptr++ = s->bit_buf;
+        s->bit_buf  >>= 8;
+#else
+        *s->buf_ptr++ = s->bit_buf >> 24;
+        s->bit_buf  <<= 8;
+#endif
+        s->bit_left  += 8;
+    }
+    s->bit_left = 32;
+    s->bit_buf  = 0;
+}
+
+static inline void flush_put_bits_le(PutBitContext *s)
+{
+    while (s->bit_left < 32) {
+        av_assert0(s->buf_ptr < s->buf_end);
+        *s->buf_ptr++ = s->bit_buf;
+        s->bit_buf  >>= 8;
+        s->bit_left  += 8;
+    }
+    s->bit_left = 32;
+    s->bit_buf  = 0;
+}
+
+#ifdef BITSTREAM_WRITER_LE
+#define avpriv_align_put_bits align_put_bits_unsupported_here
+#define avpriv_put_string ff_put_string_unsupported_here
+#define avpriv_copy_bits avpriv_copy_bits_unsupported_here
+#else
+/**
+ * Pad the bitstream with zeros up to the next byte boundary.
+ */
+void avpriv_align_put_bits(PutBitContext *s);
+
+/**
+ * Put the string string in the bitstream.
+ *
+ * @param terminate_string 0-terminates the written string if value is 1
+ */
+void avpriv_put_string(PutBitContext *pb, const char *string,
+                       int terminate_string);
+
+/**
+ * Copy the content of src to the bitstream.
+ *
+ * @param length the number of bits of src to copy
+ */
+void avpriv_copy_bits(PutBitContext *pb, const uint8_t *src, int length);
+#endif
+
+/**
+ * Write up to 31 bits into a bitstream.
+ * Use put_bits32 to write 32 bits.
+ */
+static inline void put_bits(PutBitContext *s, int n, unsigned int value)
+{
+    unsigned int bit_buf;
+    int bit_left;
+
+    av_assert2(n <= 31 && value < (1U << n));
+
+    bit_buf  = s->bit_buf;
+    bit_left = s->bit_left;
+
+    /* XXX: optimize */
+#ifdef BITSTREAM_WRITER_LE
+    bit_buf |= value << (32 - bit_left);
+    if (n >= bit_left) {
+        if (3 < s->buf_end - s->buf_ptr) {
+            AV_WL32(s->buf_ptr, bit_buf);
+            s->buf_ptr += 4;
+        } else {
+            av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
+            av_assert2(0);
+        }
+        bit_buf     = value >> bit_left;
+        bit_left   += 32;
+    }
+    bit_left -= n;
+#else
+    if (n < bit_left) {
+        bit_buf     = (bit_buf << n) | value;
+        bit_left   -= n;
+    } else {
+        bit_buf   <<= bit_left;
+        bit_buf    |= value >> (n - bit_left);
+        if (3 < s->buf_end - s->buf_ptr) {
+            AV_WB32(s->buf_ptr, bit_buf);
+            s->buf_ptr += 4;
+        } else {
+            av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
+            av_assert2(0);
+        }
+        bit_left   += 32 - n;
+        bit_buf     = value;
+    }
+#endif
+
+    s->bit_buf  = bit_buf;
+    s->bit_left = bit_left;
+}
+
+static inline void put_bits_le(PutBitContext *s, int n, unsigned int value)
+{
+    unsigned int bit_buf;
+    int bit_left;
+
+    av_assert2(n <= 31 && value < (1U << n));
+
+    bit_buf  = s->bit_buf;
+    bit_left = s->bit_left;
+
+    bit_buf |= value << (32 - bit_left);
+    if (n >= bit_left) {
+        if (3 < s->buf_end - s->buf_ptr) {
+            AV_WL32(s->buf_ptr, bit_buf);
+            s->buf_ptr += 4;
+        } else {
+            av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
+            av_assert2(0);
+        }
+        bit_buf     = value >> bit_left;
+        bit_left   += 32;
+    }
+    bit_left -= n;
+
+    s->bit_buf  = bit_buf;
+    s->bit_left = bit_left;
+}
+
+static inline void put_sbits(PutBitContext *pb, int n, int32_t value)
+{
+    av_assert2(n >= 0 && n <= 31);
+
+    put_bits(pb, n, av_mod_uintp2(value, n));
+}
+
+/**
+ * Write exactly 32 bits into a bitstream.
+ */
+static void av_unused put_bits32(PutBitContext *s, uint32_t value)
+{
+    unsigned int bit_buf;
+    int bit_left;
+
+    bit_buf  = s->bit_buf;
+    bit_left = s->bit_left;
+
+#ifdef BITSTREAM_WRITER_LE
+    bit_buf |= value << (32 - bit_left);
+    if (3 < s->buf_end - s->buf_ptr) {
+        AV_WL32(s->buf_ptr, bit_buf);
+        s->buf_ptr += 4;
+    } else {
+        av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
+        av_assert2(0);
+    }
+    bit_buf     = (uint64_t)value >> bit_left;
+#else
+    bit_buf     = (uint64_t)bit_buf << bit_left;
+    bit_buf    |= value >> (32 - bit_left);
+    if (3 < s->buf_end - s->buf_ptr) {
+        AV_WB32(s->buf_ptr, bit_buf);
+        s->buf_ptr += 4;
+    } else {
+        av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
+        av_assert2(0);
+    }
+    bit_buf     = value;
+#endif
+
+    s->bit_buf  = bit_buf;
+    s->bit_left = bit_left;
+}
+
+/**
+ * Write up to 64 bits into a bitstream.
+ */
+static inline void put_bits64(PutBitContext *s, int n, uint64_t value)
+{
+    av_assert2((n == 64) || (n < 64 && value < (UINT64_C(1) << n)));
+
+    if (n < 32)
+        put_bits(s, n, value);
+    else if (n == 32)
+        put_bits32(s, value);
+    else if (n < 64) {
+        uint32_t lo = value & 0xffffffff;
+        uint32_t hi = value >> 32;
+#ifdef BITSTREAM_WRITER_LE
+        put_bits32(s, lo);
+        put_bits(s, n - 32, hi);
+#else
+        put_bits(s, n - 32, hi);
+        put_bits32(s, lo);
+#endif
+    } else {
+        uint32_t lo = value & 0xffffffff;
+        uint32_t hi = value >> 32;
+#ifdef BITSTREAM_WRITER_LE
+        put_bits32(s, lo);
+        put_bits32(s, hi);
+#else
+        put_bits32(s, hi);
+        put_bits32(s, lo);
+#endif
+
+    }
+}
+
+/**
+ * Return the pointer to the byte where the bitstream writer will put
+ * the next bit.
+ */
+static inline uint8_t *put_bits_ptr(PutBitContext *s)
+{
+    return s->buf_ptr;
+}
+
+/**
+ * Skip the given number of bytes.
+ * PutBitContext must be flushed & aligned to a byte boundary before calling this.
+ */
+static inline void skip_put_bytes(PutBitContext *s, int n)
+{
+    av_assert2((put_bits_count(s) & 7) == 0);
+    av_assert2(s->bit_left == 32);
+    av_assert0(n <= s->buf_end - s->buf_ptr);
+    s->buf_ptr += n;
+}
+
+/**
+ * Skip the given number of bits.
+ * Must only be used if the actual values in the bitstream do not matter.
+ * If n is 0 the behavior is undefined.
+ */
+static inline void skip_put_bits(PutBitContext *s, int n)
+{
+    s->bit_left -= n;
+    s->buf_ptr  -= 4 * (s->bit_left >> 5);
+    s->bit_left &= 31;
+}
+
+/**
+ * Change the end of the buffer.
+ *
+ * @param size the new size in bytes of the buffer where to put bits
+ */
+static inline void set_put_bits_buffer_size(PutBitContext *s, int size)
+{
+    av_assert0(size <= INT_MAX/8 - 32);
+    s->buf_end = s->buf + size;
+    s->size_in_bits = 8*size;
+}
+
+#endif /* AVCODEC_PUT_BITS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/qpeldsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/qpeldsp.c
new file mode 100644
index 000000000..6e52b3365
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/qpeldsp.c
@@ -0,0 +1,816 @@
+/*
+ * quarterpel DSP functions
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * quarterpel DSP functions
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "copy_block.h"
+#include "qpeldsp.h"
+#include "diracdsp.h"
+
+#define BIT_DEPTH 8
+#include "hpel_template.c"
+#include "pel_template.c"
+#include "qpel_template.c"
+
+#define QPEL_MC(r, OPNAME, RND, OP)                                           \
+static void OPNAME ## mpeg4_qpel8_h_lowpass(uint8_t *dst, const uint8_t *src, \
+                                            int dstStride, int srcStride,     \
+                                            int h)                            \
+{                                                                             \
+    const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;                           \
+    int i;                                                                    \
+                                                                              \
+    for (i = 0; i < h; i++) {                                                 \
+        OP(dst[0], (src[0] + src[1]) * 20 - (src[0] + src[2]) * 6 + (src[1] + src[3]) * 3 - (src[2] + src[4])); \
+        OP(dst[1], (src[1] + src[2]) * 20 - (src[0] + src[3]) * 6 + (src[0] + src[4]) * 3 - (src[1] + src[5])); \
+        OP(dst[2], (src[2] + src[3]) * 20 - (src[1] + src[4]) * 6 + (src[0] + src[5]) * 3 - (src[0] + src[6])); \
+        OP(dst[3], (src[3] + src[4]) * 20 - (src[2] + src[5]) * 6 + (src[1] + src[6]) * 3 - (src[0] + src[7])); \
+        OP(dst[4], (src[4] + src[5]) * 20 - (src[3] + src[6]) * 6 + (src[2] + src[7]) * 3 - (src[1] + src[8])); \
+        OP(dst[5], (src[5] + src[6]) * 20 - (src[4] + src[7]) * 6 + (src[3] + src[8]) * 3 - (src[2] + src[8])); \
+        OP(dst[6], (src[6] + src[7]) * 20 - (src[5] + src[8]) * 6 + (src[4] + src[8]) * 3 - (src[3] + src[7])); \
+        OP(dst[7], (src[7] + src[8]) * 20 - (src[6] + src[8]) * 6 + (src[5] + src[7]) * 3 - (src[4] + src[6])); \
+        dst += dstStride;                                                     \
+        src += srcStride;                                                     \
+    }                                                                         \
+}                                                                             \
+                                                                              \
+static void OPNAME ## mpeg4_qpel8_v_lowpass(uint8_t *dst, const uint8_t *src, \
+                                            int dstStride, int srcStride)     \
+{                                                                             \
+    const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;                           \
+    const int w = 8;                                                          \
+    int i;                                                                    \
+                                                                              \
+    for (i = 0; i < w; i++) {                                                 \
+        const int src0 = src[0 * srcStride];                                  \
+        const int src1 = src[1 * srcStride];                                  \
+        const int src2 = src[2 * srcStride];                                  \
+        const int src3 = src[3 * srcStride];                                  \
+        const int src4 = src[4 * srcStride];                                  \
+        const int src5 = src[5 * srcStride];                                  \
+        const int src6 = src[6 * srcStride];                                  \
+        const int src7 = src[7 * srcStride];                                  \
+        const int src8 = src[8 * srcStride];                                  \
+        OP(dst[0 * dstStride], (src0 + src1) * 20 - (src0 + src2) * 6 + (src1 + src3) * 3 - (src2 + src4)); \
+        OP(dst[1 * dstStride], (src1 + src2) * 20 - (src0 + src3) * 6 + (src0 + src4) * 3 - (src1 + src5)); \
+        OP(dst[2 * dstStride], (src2 + src3) * 20 - (src1 + src4) * 6 + (src0 + src5) * 3 - (src0 + src6)); \
+        OP(dst[3 * dstStride], (src3 + src4) * 20 - (src2 + src5) * 6 + (src1 + src6) * 3 - (src0 + src7)); \
+        OP(dst[4 * dstStride], (src4 + src5) * 20 - (src3 + src6) * 6 + (src2 + src7) * 3 - (src1 + src8)); \
+        OP(dst[5 * dstStride], (src5 + src6) * 20 - (src4 + src7) * 6 + (src3 + src8) * 3 - (src2 + src8)); \
+        OP(dst[6 * dstStride], (src6 + src7) * 20 - (src5 + src8) * 6 + (src4 + src8) * 3 - (src3 + src7)); \
+        OP(dst[7 * dstStride], (src7 + src8) * 20 - (src6 + src8) * 6 + (src5 + src7) * 3 - (src4 + src6)); \
+        dst++;                                                                \
+        src++;                                                                \
+    }                                                                         \
+}                                                                             \
+                                                                              \
+static void OPNAME ## mpeg4_qpel16_h_lowpass(uint8_t *dst,                    \
+                                             const uint8_t *src,              \
+                                             int dstStride, int srcStride,    \
+                                             int h)                           \
+{                                                                             \
+    const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;                           \
+    int i;                                                                    \
+                                                                              \
+    for (i = 0; i < h; i++) {                                                 \
+        OP(dst[0],  (src[0]  + src[1])  * 20 - (src[0]  + src[2])  * 6 + (src[1]  + src[3])  * 3 - (src[2]  + src[4]));  \
+        OP(dst[1],  (src[1]  + src[2])  * 20 - (src[0]  + src[3])  * 6 + (src[0]  + src[4])  * 3 - (src[1]  + src[5]));  \
+        OP(dst[2],  (src[2]  + src[3])  * 20 - (src[1]  + src[4])  * 6 + (src[0]  + src[5])  * 3 - (src[0]  + src[6]));  \
+        OP(dst[3],  (src[3]  + src[4])  * 20 - (src[2]  + src[5])  * 6 + (src[1]  + src[6])  * 3 - (src[0]  + src[7]));  \
+        OP(dst[4],  (src[4]  + src[5])  * 20 - (src[3]  + src[6])  * 6 + (src[2]  + src[7])  * 3 - (src[1]  + src[8]));  \
+        OP(dst[5],  (src[5]  + src[6])  * 20 - (src[4]  + src[7])  * 6 + (src[3]  + src[8])  * 3 - (src[2]  + src[9]));  \
+        OP(dst[6],  (src[6]  + src[7])  * 20 - (src[5]  + src[8])  * 6 + (src[4]  + src[9])  * 3 - (src[3]  + src[10])); \
+        OP(dst[7],  (src[7]  + src[8])  * 20 - (src[6]  + src[9])  * 6 + (src[5]  + src[10]) * 3 - (src[4]  + src[11])); \
+        OP(dst[8],  (src[8]  + src[9])  * 20 - (src[7]  + src[10]) * 6 + (src[6]  + src[11]) * 3 - (src[5]  + src[12])); \
+        OP(dst[9],  (src[9]  + src[10]) * 20 - (src[8]  + src[11]) * 6 + (src[7]  + src[12]) * 3 - (src[6]  + src[13])); \
+        OP(dst[10], (src[10] + src[11]) * 20 - (src[9]  + src[12]) * 6 + (src[8]  + src[13]) * 3 - (src[7]  + src[14])); \
+        OP(dst[11], (src[11] + src[12]) * 20 - (src[10] + src[13]) * 6 + (src[9]  + src[14]) * 3 - (src[8]  + src[15])); \
+        OP(dst[12], (src[12] + src[13]) * 20 - (src[11] + src[14]) * 6 + (src[10] + src[15]) * 3 - (src[9]  + src[16])); \
+        OP(dst[13], (src[13] + src[14]) * 20 - (src[12] + src[15]) * 6 + (src[11] + src[16]) * 3 - (src[10] + src[16])); \
+        OP(dst[14], (src[14] + src[15]) * 20 - (src[13] + src[16]) * 6 + (src[12] + src[16]) * 3 - (src[11] + src[15])); \
+        OP(dst[15], (src[15] + src[16]) * 20 - (src[14] + src[16]) * 6 + (src[13] + src[15]) * 3 - (src[12] + src[14])); \
+        dst += dstStride;                                                     \
+        src += srcStride;                                                     \
+    }                                                                         \
+}                                                                             \
+                                                                              \
+static void OPNAME ## mpeg4_qpel16_v_lowpass(uint8_t *dst,                    \
+                                             const uint8_t *src,              \
+                                             int dstStride, int srcStride)    \
+{                                                                             \
+    const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;                           \
+    const int w = 16;                                                         \
+    int i;                                                                    \
+                                                                              \
+    for (i = 0; i < w; i++) {                                                 \
+        const int src0  = src[0  * srcStride];                                \
+        const int src1  = src[1  * srcStride];                                \
+        const int src2  = src[2  * srcStride];                                \
+        const int src3  = src[3  * srcStride];                                \
+        const int src4  = src[4  * srcStride];                                \
+        const int src5  = src[5  * srcStride];                                \
+        const int src6  = src[6  * srcStride];                                \
+        const int src7  = src[7  * srcStride];                                \
+        const int src8  = src[8  * srcStride];                                \
+        const int src9  = src[9  * srcStride];                                \
+        const int src10 = src[10 * srcStride];                                \
+        const int src11 = src[11 * srcStride];                                \
+        const int src12 = src[12 * srcStride];                                \
+        const int src13 = src[13 * srcStride];                                \
+        const int src14 = src[14 * srcStride];                                \
+        const int src15 = src[15 * srcStride];                                \
+        const int src16 = src[16 * srcStride];                                \
+        OP(dst[0  * dstStride], (src0  + src1)  * 20 - (src0  + src2)  * 6 + (src1  + src3)  * 3 - (src2  + src4));  \
+        OP(dst[1  * dstStride], (src1  + src2)  * 20 - (src0  + src3)  * 6 + (src0  + src4)  * 3 - (src1  + src5));  \
+        OP(dst[2  * dstStride], (src2  + src3)  * 20 - (src1  + src4)  * 6 + (src0  + src5)  * 3 - (src0  + src6));  \
+        OP(dst[3  * dstStride], (src3  + src4)  * 20 - (src2  + src5)  * 6 + (src1  + src6)  * 3 - (src0  + src7));  \
+        OP(dst[4  * dstStride], (src4  + src5)  * 20 - (src3  + src6)  * 6 + (src2  + src7)  * 3 - (src1  + src8));  \
+        OP(dst[5  * dstStride], (src5  + src6)  * 20 - (src4  + src7)  * 6 + (src3  + src8)  * 3 - (src2  + src9));  \
+        OP(dst[6  * dstStride], (src6  + src7)  * 20 - (src5  + src8)  * 6 + (src4  + src9)  * 3 - (src3  + src10)); \
+        OP(dst[7  * dstStride], (src7  + src8)  * 20 - (src6  + src9)  * 6 + (src5  + src10) * 3 - (src4  + src11)); \
+        OP(dst[8  * dstStride], (src8  + src9)  * 20 - (src7  + src10) * 6 + (src6  + src11) * 3 - (src5  + src12)); \
+        OP(dst[9  * dstStride], (src9  + src10) * 20 - (src8  + src11) * 6 + (src7  + src12) * 3 - (src6  + src13)); \
+        OP(dst[10 * dstStride], (src10 + src11) * 20 - (src9  + src12) * 6 + (src8  + src13) * 3 - (src7  + src14)); \
+        OP(dst[11 * dstStride], (src11 + src12) * 20 - (src10 + src13) * 6 + (src9  + src14) * 3 - (src8  + src15)); \
+        OP(dst[12 * dstStride], (src12 + src13) * 20 - (src11 + src14) * 6 + (src10 + src15) * 3 - (src9  + src16)); \
+        OP(dst[13 * dstStride], (src13 + src14) * 20 - (src12 + src15) * 6 + (src11 + src16) * 3 - (src10 + src16)); \
+        OP(dst[14 * dstStride], (src14 + src15) * 20 - (src13 + src16) * 6 + (src12 + src16) * 3 - (src11 + src15)); \
+        OP(dst[15 * dstStride], (src15 + src16) * 20 - (src14 + src16) * 6 + (src13 + src15) * 3 - (src12 + src14)); \
+        dst++;                                                                \
+        src++;                                                                \
+    }                                                                         \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc10_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t half[64];                                                         \
+                                                                              \
+    put ## RND ## mpeg4_qpel8_h_lowpass(half, src, 8, stride, 8);             \
+    OPNAME ## pixels8_l2_8(dst, src, half, stride, stride, 8, 8);             \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc20_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    OPNAME ## mpeg4_qpel8_h_lowpass(dst, src, stride, stride, 8);             \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc30_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t half[64];                                                         \
+                                                                              \
+    put ## RND ## mpeg4_qpel8_h_lowpass(half, src, 8, stride, 8);             \
+    OPNAME ## pixels8_l2_8(dst, src + 1, half, stride, stride, 8, 8);         \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc01_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t half[64];                                                         \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_v_lowpass(half, full, 8, 16);                   \
+    OPNAME ## pixels8_l2_8(dst, full, half, stride, 16, 8, 8);                \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc02_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    OPNAME ## mpeg4_qpel8_v_lowpass(dst, full, stride, 16);                   \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc03_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t half[64];                                                         \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_v_lowpass(half, full, 8, 16);                   \
+    OPNAME ## pixels8_l2_8(dst, full + 16, half, stride, 16, 8, 8);           \
+}                                                                             \
+                                                                              \
+void ff_ ## OPNAME ## qpel8_mc11_old_c(uint8_t *dst, const uint8_t *src,      \
+                                       ptrdiff_t stride)                      \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t halfH[72];                                                        \
+    uint8_t halfV[64];                                                        \
+    uint8_t halfHV[64];                                                       \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);               \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfV, full, 8, 16);                  \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);                 \
+    OPNAME ## pixels8_l4_8(dst, full, halfH, halfV, halfHV,                   \
+                           stride, 16, 8, 8, 8, 8);                           \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc11_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t halfH[72];                                                        \
+    uint8_t halfHV[64];                                                       \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);               \
+    put ## RND ## pixels8_l2_8(halfH, halfH, full, 8, 8, 16, 9);              \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);                 \
+    OPNAME ## pixels8_l2_8(dst, halfH, halfHV, stride, 8, 8, 8);              \
+}                                                                             \
+                                                                              \
+void ff_ ## OPNAME ## qpel8_mc31_old_c(uint8_t *dst, const uint8_t *src,      \
+                                       ptrdiff_t stride)                      \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t halfH[72];                                                        \
+    uint8_t halfV[64];                                                        \
+    uint8_t halfHV[64];                                                       \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);               \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfV, full + 1, 8, 16);              \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);                 \
+    OPNAME ## pixels8_l4_8(dst, full + 1, halfH, halfV, halfHV,               \
+                           stride, 16, 8, 8, 8, 8);                           \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc31_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t halfH[72];                                                        \
+    uint8_t halfHV[64];                                                       \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);               \
+    put ## RND ## pixels8_l2_8(halfH, halfH, full + 1, 8, 8, 16, 9);          \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);                 \
+    OPNAME ## pixels8_l2_8(dst, halfH, halfHV, stride, 8, 8, 8);              \
+}                                                                             \
+                                                                              \
+void ff_ ## OPNAME ## qpel8_mc13_old_c(uint8_t *dst, const uint8_t *src,      \
+                                       ptrdiff_t stride)                      \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t halfH[72];                                                        \
+    uint8_t halfV[64];                                                        \
+    uint8_t halfHV[64];                                                       \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);               \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfV, full, 8, 16);                  \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);                 \
+    OPNAME ## pixels8_l4_8(dst, full + 16, halfH + 8, halfV, halfHV,          \
+                           stride, 16, 8, 8, 8, 8);                           \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc13_c(uint8_t *dst, const uint8_t *src,    \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t halfH[72];                                                        \
+    uint8_t halfHV[64];                                                       \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);               \
+    put ## RND ## pixels8_l2_8(halfH, halfH, full, 8, 8, 16, 9);              \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);                 \
+    OPNAME ## pixels8_l2_8(dst, halfH + 8, halfHV, stride, 8, 8, 8);          \
+}                                                                             \
+                                                                              \
+void ff_ ## OPNAME ## qpel8_mc33_old_c(uint8_t *dst, const uint8_t *src,      \
+                                       ptrdiff_t stride)                      \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t halfH[72];                                                        \
+    uint8_t halfV[64];                                                        \
+    uint8_t halfHV[64];                                                       \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);               \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfV, full + 1, 8, 16);              \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);                 \
+    OPNAME ## pixels8_l4_8(dst, full + 17, halfH + 8, halfV, halfHV,          \
+                           stride, 16, 8, 8, 8, 8);                           \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc33_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t halfH[72];                                                        \
+    uint8_t halfHV[64];                                                       \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);               \
+    put ## RND ## pixels8_l2_8(halfH, halfH, full + 1, 8, 8, 16, 9);          \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);                 \
+    OPNAME ## pixels8_l2_8(dst, halfH + 8, halfHV, stride, 8, 8, 8);          \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc21_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t halfH[72];                                                        \
+    uint8_t halfHV[64];                                                       \
+                                                                              \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, src, 8, stride, 9);            \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);                 \
+    OPNAME ## pixels8_l2_8(dst, halfH, halfHV, stride, 8, 8, 8);              \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc23_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t halfH[72];                                                        \
+    uint8_t halfHV[64];                                                       \
+                                                                              \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, src, 8, stride, 9);            \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);                 \
+    OPNAME ## pixels8_l2_8(dst, halfH + 8, halfHV, stride, 8, 8, 8);          \
+}                                                                             \
+                                                                              \
+void ff_ ## OPNAME ## qpel8_mc12_old_c(uint8_t *dst, const uint8_t *src,      \
+                                       ptrdiff_t stride)                      \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t halfH[72];                                                        \
+    uint8_t halfV[64];                                                        \
+    uint8_t halfHV[64];                                                       \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);               \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfV, full, 8, 16);                  \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);                 \
+    OPNAME ## pixels8_l2_8(dst, halfV, halfHV, stride, 8, 8, 8);              \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc12_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t halfH[72];                                                        \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);               \
+    put ## RND ## pixels8_l2_8(halfH, halfH, full, 8, 8, 16, 9);              \
+    OPNAME ## mpeg4_qpel8_v_lowpass(dst, halfH, stride, 8);                   \
+}                                                                             \
+                                                                              \
+void ff_ ## OPNAME ## qpel8_mc32_old_c(uint8_t *dst, const uint8_t *src,      \
+                                       ptrdiff_t stride)                      \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t halfH[72];                                                        \
+    uint8_t halfV[64];                                                        \
+    uint8_t halfHV[64];                                                       \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);               \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfV, full + 1, 8, 16);              \
+    put ## RND ## mpeg4_qpel8_v_lowpass(halfHV, halfH, 8, 8);                 \
+    OPNAME ## pixels8_l2_8(dst, halfV, halfHV, stride, 8, 8, 8);              \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc32_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t full[16 * 9];                                                     \
+    uint8_t halfH[72];                                                        \
+                                                                              \
+    copy_block9(full, src, 16, stride, 9);                                    \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, full, 8, 16, 9);               \
+    put ## RND ## pixels8_l2_8(halfH, halfH, full + 1, 8, 8, 16, 9);          \
+    OPNAME ## mpeg4_qpel8_v_lowpass(dst, halfH, stride, 8);                   \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel8_mc22_c(uint8_t *dst, const uint8_t *src,          \
+                                   ptrdiff_t stride)                          \
+{                                                                             \
+    uint8_t halfH[72];                                                        \
+                                                                              \
+    put ## RND ## mpeg4_qpel8_h_lowpass(halfH, src, 8, stride, 9);            \
+    OPNAME ## mpeg4_qpel8_v_lowpass(dst, halfH, stride, 8);                   \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc10_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t half[256];                                                        \
+                                                                              \
+    put ## RND ## mpeg4_qpel16_h_lowpass(half, src, 16, stride, 16);          \
+    OPNAME ## pixels16_l2_8(dst, src, half, stride, stride, 16, 16);          \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc20_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    OPNAME ## mpeg4_qpel16_h_lowpass(dst, src, stride, stride, 16);           \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc30_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t half[256];                                                        \
+                                                                              \
+    put ## RND ## mpeg4_qpel16_h_lowpass(half, src, 16, stride, 16);          \
+    OPNAME ## pixels16_l2_8(dst, src + 1, half, stride, stride, 16, 16);      \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc01_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t half[256];                                                        \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_v_lowpass(half, full, 16, 24);                 \
+    OPNAME ## pixels16_l2_8(dst, full, half, stride, 24, 16, 16);             \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc02_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    OPNAME ## mpeg4_qpel16_v_lowpass(dst, full, stride, 24);                  \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc03_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t half[256];                                                        \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_v_lowpass(half, full, 16, 24);                 \
+    OPNAME ## pixels16_l2_8(dst, full + 24, half, stride, 24, 16, 16);        \
+}                                                                             \
+                                                                              \
+void ff_ ## OPNAME ## qpel16_mc11_old_c(uint8_t *dst, const uint8_t *src,     \
+                                        ptrdiff_t stride)                     \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t halfH[272];                                                       \
+    uint8_t halfV[256];                                                       \
+    uint8_t halfHV[256];                                                      \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);            \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfV, full, 16, 24);                \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);              \
+    OPNAME ## pixels16_l4_8(dst, full, halfH, halfV, halfHV,                  \
+                            stride, 24, 16, 16, 16, 16);                      \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc11_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t halfH[272];                                                       \
+    uint8_t halfHV[256];                                                      \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);            \
+    put ## RND ## pixels16_l2_8(halfH, halfH, full, 16, 16, 24, 17);          \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);              \
+    OPNAME ## pixels16_l2_8(dst, halfH, halfHV, stride, 16, 16, 16);          \
+}                                                                             \
+                                                                              \
+void ff_ ## OPNAME ## qpel16_mc31_old_c(uint8_t *dst, const uint8_t *src,     \
+                                        ptrdiff_t stride)                     \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t halfH[272];                                                       \
+    uint8_t halfV[256];                                                       \
+    uint8_t halfHV[256];                                                      \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);            \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfV, full + 1, 16, 24);            \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);              \
+    OPNAME ## pixels16_l4_8(dst, full + 1, halfH, halfV, halfHV,              \
+                            stride, 24, 16, 16, 16, 16);                      \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc31_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t halfH[272];                                                       \
+    uint8_t halfHV[256];                                                      \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);            \
+    put ## RND ## pixels16_l2_8(halfH, halfH, full + 1, 16, 16, 24, 17);      \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);              \
+    OPNAME ## pixels16_l2_8(dst, halfH, halfHV, stride, 16, 16, 16);          \
+}                                                                             \
+                                                                              \
+void ff_ ## OPNAME ## qpel16_mc13_old_c(uint8_t *dst, const uint8_t *src,     \
+                                        ptrdiff_t stride)                     \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t halfH[272];                                                       \
+    uint8_t halfV[256];                                                       \
+    uint8_t halfHV[256];                                                      \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);            \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfV, full, 16, 24);                \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);              \
+    OPNAME ## pixels16_l4_8(dst, full + 24, halfH + 16, halfV, halfHV,        \
+                            stride, 24, 16, 16, 16, 16);                      \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc13_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t halfH[272];                                                       \
+    uint8_t halfHV[256];                                                      \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);            \
+    put ## RND ## pixels16_l2_8(halfH, halfH, full, 16, 16, 24, 17);          \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);              \
+    OPNAME ## pixels16_l2_8(dst, halfH + 16, halfHV, stride, 16, 16, 16);     \
+}                                                                             \
+                                                                              \
+void ff_ ## OPNAME ## qpel16_mc33_old_c(uint8_t *dst, const uint8_t *src,     \
+                                        ptrdiff_t stride)                     \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t halfH[272];                                                       \
+    uint8_t halfV[256];                                                       \
+    uint8_t halfHV[256];                                                      \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);            \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfV, full + 1, 16, 24);            \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);              \
+    OPNAME ## pixels16_l4_8(dst, full + 25, halfH + 16, halfV, halfHV,        \
+                            stride, 24, 16, 16, 16, 16);                      \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc33_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t halfH[272];                                                       \
+    uint8_t halfHV[256];                                                      \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);            \
+    put ## RND ## pixels16_l2_8(halfH, halfH, full + 1, 16, 16, 24, 17);      \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);              \
+    OPNAME ## pixels16_l2_8(dst, halfH + 16, halfHV, stride, 16, 16, 16);     \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc21_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t halfH[272];                                                       \
+    uint8_t halfHV[256];                                                      \
+                                                                              \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, src, 16, stride, 17);         \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);              \
+    OPNAME ## pixels16_l2_8(dst, halfH, halfHV, stride, 16, 16, 16);          \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc23_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t halfH[272];                                                       \
+    uint8_t halfHV[256];                                                      \
+                                                                              \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, src, 16, stride, 17);         \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);              \
+    OPNAME ## pixels16_l2_8(dst, halfH + 16, halfHV, stride, 16, 16, 16);     \
+}                                                                             \
+                                                                              \
+void ff_ ## OPNAME ## qpel16_mc12_old_c(uint8_t *dst, const uint8_t *src,     \
+                                        ptrdiff_t stride)                     \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t halfH[272];                                                       \
+    uint8_t halfV[256];                                                       \
+    uint8_t halfHV[256];                                                      \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);            \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfV, full, 16, 24);                \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);              \
+    OPNAME ## pixels16_l2_8(dst, halfV, halfHV, stride, 16, 16, 16);          \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc12_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t halfH[272];                                                       \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);            \
+    put ## RND ## pixels16_l2_8(halfH, halfH, full, 16, 16, 24, 17);          \
+    OPNAME ## mpeg4_qpel16_v_lowpass(dst, halfH, stride, 16);                 \
+}                                                                             \
+                                                                              \
+void ff_ ## OPNAME ## qpel16_mc32_old_c(uint8_t *dst, const uint8_t *src,     \
+                                        ptrdiff_t stride)                     \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t halfH[272];                                                       \
+    uint8_t halfV[256];                                                       \
+    uint8_t halfHV[256];                                                      \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);            \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfV, full + 1, 16, 24);            \
+    put ## RND ## mpeg4_qpel16_v_lowpass(halfHV, halfH, 16, 16);              \
+    OPNAME ## pixels16_l2_8(dst, halfV, halfHV, stride, 16, 16, 16);          \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc32_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t full[24 * 17];                                                    \
+    uint8_t halfH[272];                                                       \
+                                                                              \
+    copy_block17(full, src, 24, stride, 17);                                  \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, full, 16, 24, 17);            \
+    put ## RND ## pixels16_l2_8(halfH, halfH, full + 1, 16, 16, 24, 17);      \
+    OPNAME ## mpeg4_qpel16_v_lowpass(dst, halfH, stride, 16);                 \
+}                                                                             \
+                                                                              \
+static void OPNAME ## qpel16_mc22_c(uint8_t *dst, const uint8_t *src,         \
+                                    ptrdiff_t stride)                         \
+{                                                                             \
+    uint8_t halfH[272];                                                       \
+                                                                              \
+    put ## RND ## mpeg4_qpel16_h_lowpass(halfH, src, 16, stride, 17);         \
+    OPNAME ## mpeg4_qpel16_v_lowpass(dst, halfH, stride, 16);                 \
+}
+
+#define op_avg(a, b)        a = (((a) + cm[((b) + 16) >> 5] + 1) >> 1)
+#define op_put(a, b)        a = cm[((b) + 16) >> 5]
+#define op_put_no_rnd(a, b) a = cm[((b) + 15) >> 5]
+
+QPEL_MC(0, put_, _, op_put)
+QPEL_MC(1, put_no_rnd_, _no_rnd_, op_put_no_rnd)
+QPEL_MC(0, avg_, _, op_avg)
+
+#undef op_avg
+#undef op_put
+#undef op_put_no_rnd
+
+void ff_put_pixels8x8_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
+{
+    put_pixels8_8_c(dst, src, stride, 8);
+}
+
+void ff_avg_pixels8x8_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
+{
+    avg_pixels8_8_c(dst, src, stride, 8);
+}
+
+void ff_put_pixels16x16_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
+{
+    put_pixels16_8_c(dst, src, stride, 16);
+}
+
+void ff_avg_pixels16x16_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
+{
+    avg_pixels16_8_c(dst, src, stride, 16);
+}
+
+#define put_qpel8_mc00_c         ff_put_pixels8x8_c
+#define avg_qpel8_mc00_c         ff_avg_pixels8x8_c
+#define put_qpel16_mc00_c        ff_put_pixels16x16_c
+#define avg_qpel16_mc00_c        ff_avg_pixels16x16_c
+#define put_no_rnd_qpel8_mc00_c  ff_put_pixels8x8_c
+#define put_no_rnd_qpel16_mc00_c ff_put_pixels16x16_c
+
+void ff_put_pixels8_l2_8(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
+                         int dst_stride, int src_stride1, int src_stride2,
+                         int h)
+{
+    put_pixels8_l2_8(dst, src1, src2, dst_stride, src_stride1, src_stride2, h);
+
+}
+
+#if CONFIG_DIRAC_DECODER
+#define DIRAC_MC(OPNAME)\
+void ff_ ## OPNAME ## _dirac_pixels8_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
+{\
+     OPNAME ## _pixels8_8_c(dst, src[0], stride, h);\
+}\
+void ff_ ## OPNAME ## _dirac_pixels16_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
+{\
+    OPNAME ## _pixels16_8_c(dst, src[0], stride, h);\
+}\
+void ff_ ## OPNAME ## _dirac_pixels32_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
+{\
+    OPNAME ## _pixels16_8_c(dst   , src[0]   , stride, h);\
+    OPNAME ## _pixels16_8_c(dst+16, src[0]+16, stride, h);\
+}\
+void ff_ ## OPNAME ## _dirac_pixels8_l2_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
+{\
+    OPNAME ## _pixels8_l2_8(dst, src[0], src[1], stride, stride, stride, h);\
+}\
+void ff_ ## OPNAME ## _dirac_pixels16_l2_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
+{\
+    OPNAME ## _pixels16_l2_8(dst, src[0], src[1], stride, stride, stride, h);\
+}\
+void ff_ ## OPNAME ## _dirac_pixels32_l2_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
+{\
+    OPNAME ## _pixels16_l2_8(dst   , src[0]   , src[1]   , stride, stride, stride, h);\
+    OPNAME ## _pixels16_l2_8(dst+16, src[0]+16, src[1]+16, stride, stride, stride, h);\
+}\
+void ff_ ## OPNAME ## _dirac_pixels8_l4_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
+{\
+    OPNAME ## _pixels8_l4_8(dst, src[0], src[1], src[2], src[3], stride, stride, stride, stride, stride, h);\
+}\
+void ff_ ## OPNAME ## _dirac_pixels16_l4_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
+{\
+    OPNAME ## _pixels16_l4_8(dst, src[0], src[1], src[2], src[3], stride, stride, stride, stride, stride, h);\
+}\
+void ff_ ## OPNAME ## _dirac_pixels32_l4_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
+{\
+    OPNAME ## _pixels16_l4_8(dst   , src[0]   , src[1]   , src[2]   , src[3]   , stride, stride, stride, stride, stride, h);\
+    OPNAME ## _pixels16_l4_8(dst+16, src[0]+16, src[1]+16, src[2]+16, src[3]+16, stride, stride, stride, stride, stride, h);\
+}
+DIRAC_MC(put)
+DIRAC_MC(avg)
+#endif
+
+av_cold void ff_qpeldsp_init(QpelDSPContext *c)
+{
+#define dspfunc(PFX, IDX, NUM)                              \
+    c->PFX ## _pixels_tab[IDX][0]  = PFX ## NUM ## _mc00_c; \
+    c->PFX ## _pixels_tab[IDX][1]  = PFX ## NUM ## _mc10_c; \
+    c->PFX ## _pixels_tab[IDX][2]  = PFX ## NUM ## _mc20_c; \
+    c->PFX ## _pixels_tab[IDX][3]  = PFX ## NUM ## _mc30_c; \
+    c->PFX ## _pixels_tab[IDX][4]  = PFX ## NUM ## _mc01_c; \
+    c->PFX ## _pixels_tab[IDX][5]  = PFX ## NUM ## _mc11_c; \
+    c->PFX ## _pixels_tab[IDX][6]  = PFX ## NUM ## _mc21_c; \
+    c->PFX ## _pixels_tab[IDX][7]  = PFX ## NUM ## _mc31_c; \
+    c->PFX ## _pixels_tab[IDX][8]  = PFX ## NUM ## _mc02_c; \
+    c->PFX ## _pixels_tab[IDX][9]  = PFX ## NUM ## _mc12_c; \
+    c->PFX ## _pixels_tab[IDX][10] = PFX ## NUM ## _mc22_c; \
+    c->PFX ## _pixels_tab[IDX][11] = PFX ## NUM ## _mc32_c; \
+    c->PFX ## _pixels_tab[IDX][12] = PFX ## NUM ## _mc03_c; \
+    c->PFX ## _pixels_tab[IDX][13] = PFX ## NUM ## _mc13_c; \
+    c->PFX ## _pixels_tab[IDX][14] = PFX ## NUM ## _mc23_c; \
+    c->PFX ## _pixels_tab[IDX][15] = PFX ## NUM ## _mc33_c
+
+    dspfunc(put_qpel, 0, 16);
+    dspfunc(put_qpel, 1, 8);
+
+    dspfunc(put_no_rnd_qpel, 0, 16);
+    dspfunc(put_no_rnd_qpel, 1, 8);
+
+    dspfunc(avg_qpel, 0, 16);
+    dspfunc(avg_qpel, 1, 8);
+
+    if (ARCH_X86)
+        ff_qpeldsp_init_x86(c);
+    if (ARCH_MIPS)
+        ff_qpeldsp_init_mips(c);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/qpeldsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/qpeldsp.h
new file mode 100644
index 000000000..91019eda9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/qpeldsp.h
@@ -0,0 +1,83 @@
+/*
+ * quarterpel DSP functions
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * quarterpel DSP functions
+ */
+
+#ifndef AVCODEC_QPELDSP_H
+#define AVCODEC_QPELDSP_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+void ff_put_pixels8x8_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_pixels8x8_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_pixels16x16_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_pixels16x16_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+
+void ff_put_pixels8_l2_8(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
+                         int dst_stride, int src_stride1, int src_stride2,
+                         int h);
+
+#define DEF_OLD_QPEL(name)                                              \
+void ff_put_        ## name(uint8_t *dst /* align width (8 or 16) */,   \
+                            const uint8_t *src /* align 1 */,           \
+                            ptrdiff_t stride);                          \
+void ff_put_no_rnd_ ## name(uint8_t *dst /* align width (8 or 16) */,   \
+                            const uint8_t *src /* align 1 */,           \
+                            ptrdiff_t stride);                          \
+void ff_avg_        ## name(uint8_t *dst /* align width (8 or 16) */,   \
+                            const uint8_t *src /* align 1 */,           \
+                            ptrdiff_t stride);
+
+DEF_OLD_QPEL(qpel16_mc11_old_c)
+DEF_OLD_QPEL(qpel16_mc31_old_c)
+DEF_OLD_QPEL(qpel16_mc12_old_c)
+DEF_OLD_QPEL(qpel16_mc32_old_c)
+DEF_OLD_QPEL(qpel16_mc13_old_c)
+DEF_OLD_QPEL(qpel16_mc33_old_c)
+DEF_OLD_QPEL(qpel8_mc11_old_c)
+DEF_OLD_QPEL(qpel8_mc31_old_c)
+DEF_OLD_QPEL(qpel8_mc12_old_c)
+DEF_OLD_QPEL(qpel8_mc32_old_c)
+DEF_OLD_QPEL(qpel8_mc13_old_c)
+DEF_OLD_QPEL(qpel8_mc33_old_c)
+
+typedef void (*qpel_mc_func)(uint8_t *dst /* align width (8 or 16) */,
+                             const uint8_t *src /* align 1 */,
+                             ptrdiff_t stride);
+
+/**
+ * quarterpel DSP context
+ */
+typedef struct QpelDSPContext {
+    qpel_mc_func put_qpel_pixels_tab[2][16];
+    qpel_mc_func avg_qpel_pixels_tab[2][16];
+    qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];
+} QpelDSPContext;
+
+void ff_qpeldsp_init(QpelDSPContext *c);
+
+void ff_qpeldsp_init_x86(QpelDSPContext *c);
+void ff_qpeldsp_init_mips(QpelDSPContext *c);
+
+#endif /* AVCODEC_QPELDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/qsv.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/qsv.h
new file mode 100644
index 000000000..b77158ec2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/qsv.h
@@ -0,0 +1,107 @@
+/*
+ * Intel MediaSDK QSV public API
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_QSV_H
+#define AVCODEC_QSV_H
+
+#include <mfx/mfxvideo.h>
+
+#include "libavutil/buffer.h"
+
+/**
+ * This struct is used for communicating QSV parameters between libavcodec and
+ * the caller. It is managed by the caller and must be assigned to
+ * AVCodecContext.hwaccel_context.
+ * - decoding: hwaccel_context must be set on return from the get_format()
+ *             callback
+ * - encoding: hwaccel_context must be set before avcodec_open2()
+ */
+typedef struct AVQSVContext {
+    /**
+     * If non-NULL, the session to use for encoding or decoding.
+     * Otherwise, libavcodec will try to create an internal session.
+     */
+    mfxSession session;
+
+    /**
+     * The IO pattern to use.
+     */
+    int iopattern;
+
+    /**
+     * Extra buffers to pass to encoder or decoder initialization.
+     */
+    mfxExtBuffer **ext_buffers;
+    int         nb_ext_buffers;
+
+    /**
+     * Encoding only. If this field is set to non-zero by the caller, libavcodec
+     * will create an mfxExtOpaqueSurfaceAlloc extended buffer and pass it to
+     * the encoder initialization. This only makes sense if iopattern is also
+     * set to MFX_IOPATTERN_IN_OPAQUE_MEMORY.
+     *
+     * The number of allocated opaque surfaces will be the sum of the number
+     * required by the encoder and the user-provided value nb_opaque_surfaces.
+     * The array of the opaque surfaces will be exported to the caller through
+     * the opaque_surfaces field.
+     */
+    int opaque_alloc;
+
+    /**
+     * Encoding only, and only if opaque_alloc is set to non-zero. Before
+     * calling avcodec_open2(), the caller should set this field to the number
+     * of extra opaque surfaces to allocate beyond what is required by the
+     * encoder.
+     *
+     * On return from avcodec_open2(), this field will be set by libavcodec to
+     * the total number of allocated opaque surfaces.
+     */
+    int nb_opaque_surfaces;
+
+    /**
+     * Encoding only, and only if opaque_alloc is set to non-zero. On return
+     * from avcodec_open2(), this field will be used by libavcodec to export the
+     * array of the allocated opaque surfaces to the caller, so they can be
+     * passed to other parts of the pipeline.
+     *
+     * The buffer reference exported here is owned and managed by libavcodec,
+     * the callers should make their own reference with av_buffer_ref() and free
+     * it with av_buffer_unref() when it is no longer needed.
+     *
+     * The buffer data is an nb_opaque_surfaces-sized array of mfxFrameSurface1.
+     */
+    AVBufferRef *opaque_surfaces;
+
+    /**
+     * Encoding only, and only if opaque_alloc is set to non-zero. On return
+     * from avcodec_open2(), this field will be set to the surface type used in
+     * the opaque allocation request.
+     */
+    int opaque_alloc_type;
+} AVQSVContext;
+
+/**
+ * Allocate a new context.
+ *
+ * It must be freed by the caller with av_free().
+ */
+AVQSVContext *av_qsv_alloc_context(void);
+
+#endif /* AVCODEC_QSV_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/qsv_api.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/qsv_api.c
new file mode 100644
index 000000000..327ff7d81
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/qsv_api.c
@@ -0,0 +1,42 @@
+/*
+ * Intel MediaSDK QSV public API functions
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include <stddef.h>
+
+#include "libavutil/mem.h"
+
+#if CONFIG_QSV
+#include "qsv.h"
+
+AVQSVContext *av_qsv_alloc_context(void)
+{
+    return av_mallocz(sizeof(AVQSVContext));
+}
+#else
+
+struct AVQSVContext *av_qsv_alloc_context(void);
+
+struct AVQSVContext *av_qsv_alloc_context(void)
+{
+    return NULL;
+}
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ratecontrol.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ratecontrol.c
new file mode 100644
index 000000000..49d169ba2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ratecontrol.c
@@ -0,0 +1,1028 @@
+/*
+ * Rate control for video encoders
+ *
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Rate control for video encoders.
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/internal.h"
+
+#include "avcodec.h"
+#include "internal.h"
+#include "ratecontrol.h"
+#include "mpegutils.h"
+#include "mpegvideo.h"
+#include "libavutil/eval.h"
+
+void ff_write_pass1_stats(MpegEncContext *s)
+{
+    snprintf(s->avctx->stats_out, 256,
+             "in:%d out:%d type:%d q:%d itex:%d ptex:%d mv:%d misc:%d "
+             "fcode:%d bcode:%d mc-var:%"PRId64" var:%"PRId64" icount:%d skipcount:%d hbits:%d;\n",
+             s->current_picture_ptr->f->display_picture_number,
+             s->current_picture_ptr->f->coded_picture_number,
+             s->pict_type,
+             s->current_picture.f->quality,
+             s->i_tex_bits,
+             s->p_tex_bits,
+             s->mv_bits,
+             s->misc_bits,
+             s->f_code,
+             s->b_code,
+             s->current_picture.mc_mb_var_sum,
+             s->current_picture.mb_var_sum,
+             s->i_count, s->skip_count,
+             s->header_bits);
+}
+
+static double get_fps(AVCodecContext *avctx)
+{
+    return 1.0 / av_q2d(avctx->time_base) / FFMAX(avctx->ticks_per_frame, 1);
+}
+
+static inline double qp2bits(RateControlEntry *rce, double qp)
+{
+    if (qp <= 0.0) {
+        av_log(NULL, AV_LOG_ERROR, "qp<=0.0\n");
+    }
+    return rce->qscale * (double)(rce->i_tex_bits + rce->p_tex_bits + 1) / qp;
+}
+
+static inline double bits2qp(RateControlEntry *rce, double bits)
+{
+    if (bits < 0.9) {
+        av_log(NULL, AV_LOG_ERROR, "bits<0.9\n");
+    }
+    return rce->qscale * (double)(rce->i_tex_bits + rce->p_tex_bits + 1) / bits;
+}
+
+static double get_diff_limited_q(MpegEncContext *s, RateControlEntry *rce, double q)
+{
+    RateControlContext *rcc   = &s->rc_context;
+    AVCodecContext *a         = s->avctx;
+    const int pict_type       = rce->new_pict_type;
+    const double last_p_q     = rcc->last_qscale_for[AV_PICTURE_TYPE_P];
+    const double last_non_b_q = rcc->last_qscale_for[rcc->last_non_b_pict_type];
+
+    if (pict_type == AV_PICTURE_TYPE_I &&
+        (a->i_quant_factor > 0.0 || rcc->last_non_b_pict_type == AV_PICTURE_TYPE_P))
+        q = last_p_q * FFABS(a->i_quant_factor) + a->i_quant_offset;
+    else if (pict_type == AV_PICTURE_TYPE_B &&
+             a->b_quant_factor > 0.0)
+        q = last_non_b_q * a->b_quant_factor + a->b_quant_offset;
+    if (q < 1)
+        q = 1;
+
+    /* last qscale / qdiff stuff */
+    if (rcc->last_non_b_pict_type == pict_type || pict_type != AV_PICTURE_TYPE_I) {
+        double last_q     = rcc->last_qscale_for[pict_type];
+        const int maxdiff = FF_QP2LAMBDA * a->max_qdiff;
+
+        if (q > last_q + maxdiff)
+            q = last_q + maxdiff;
+        else if (q < last_q - maxdiff)
+            q = last_q - maxdiff;
+    }
+
+    rcc->last_qscale_for[pict_type] = q; // Note we cannot do that after blurring
+
+    if (pict_type != AV_PICTURE_TYPE_B)
+        rcc->last_non_b_pict_type = pict_type;
+
+    return q;
+}
+
+/**
+ * Get the qmin & qmax for pict_type.
+ */
+static void get_qminmax(int *qmin_ret, int *qmax_ret, MpegEncContext *s, int pict_type)
+{
+    int qmin = s->lmin;
+    int qmax = s->lmax;
+
+    av_assert0(qmin <= qmax);
+
+    switch (pict_type) {
+    case AV_PICTURE_TYPE_B:
+        qmin = (int)(qmin * FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset + 0.5);
+        qmax = (int)(qmax * FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset + 0.5);
+        break;
+    case AV_PICTURE_TYPE_I:
+        qmin = (int)(qmin * FFABS(s->avctx->i_quant_factor) + s->avctx->i_quant_offset + 0.5);
+        qmax = (int)(qmax * FFABS(s->avctx->i_quant_factor) + s->avctx->i_quant_offset + 0.5);
+        break;
+    }
+
+    qmin = av_clip(qmin, 1, FF_LAMBDA_MAX);
+    qmax = av_clip(qmax, 1, FF_LAMBDA_MAX);
+
+    if (qmax < qmin)
+        qmax = qmin;
+
+    *qmin_ret = qmin;
+    *qmax_ret = qmax;
+}
+
+static double modify_qscale(MpegEncContext *s, RateControlEntry *rce,
+                            double q, int frame_num)
+{
+    RateControlContext *rcc  = &s->rc_context;
+    const double buffer_size = s->avctx->rc_buffer_size;
+    const double fps         = get_fps(s->avctx);
+    const double min_rate    = s->avctx->rc_min_rate / fps;
+    const double max_rate    = s->avctx->rc_max_rate / fps;
+    const int pict_type      = rce->new_pict_type;
+    int qmin, qmax;
+
+    get_qminmax(&qmin, &qmax, s, pict_type);
+
+    /* modulation */
+    if (s->rc_qmod_freq &&
+        frame_num % s->rc_qmod_freq == 0 &&
+        pict_type == AV_PICTURE_TYPE_P)
+        q *= s->rc_qmod_amp;
+
+    /* buffer overflow/underflow protection */
+    if (buffer_size) {
+        double expected_size = rcc->buffer_index;
+        double q_limit;
+
+        if (min_rate) {
+            double d = 2 * (buffer_size - expected_size) / buffer_size;
+            if (d > 1.0)
+                d = 1.0;
+            else if (d < 0.0001)
+                d = 0.0001;
+            q *= pow(d, 1.0 / s->rc_buffer_aggressivity);
+
+            q_limit = bits2qp(rce,
+                              FFMAX((min_rate - buffer_size + rcc->buffer_index) *
+                                    s->avctx->rc_min_vbv_overflow_use, 1));
+
+            if (q > q_limit) {
+                if (s->avctx->debug & FF_DEBUG_RC)
+                    av_log(s->avctx, AV_LOG_DEBUG,
+                           "limiting QP %f -> %f\n", q, q_limit);
+                q = q_limit;
+            }
+        }
+
+        if (max_rate) {
+            double d = 2 * expected_size / buffer_size;
+            if (d > 1.0)
+                d = 1.0;
+            else if (d < 0.0001)
+                d = 0.0001;
+            q /= pow(d, 1.0 / s->rc_buffer_aggressivity);
+
+            q_limit = bits2qp(rce,
+                              FFMAX(rcc->buffer_index *
+                                    s->avctx->rc_max_available_vbv_use,
+                                    1));
+            if (q < q_limit) {
+                if (s->avctx->debug & FF_DEBUG_RC)
+                    av_log(s->avctx, AV_LOG_DEBUG,
+                           "limiting QP %f -> %f\n", q, q_limit);
+                q = q_limit;
+            }
+        }
+    }
+    ff_dlog(s, "q:%f max:%f min:%f size:%f index:%f agr:%f\n",
+            q, max_rate, min_rate, buffer_size, rcc->buffer_index,
+            s->rc_buffer_aggressivity);
+    if (s->rc_qsquish == 0.0 || qmin == qmax) {
+        if (q < qmin)
+            q = qmin;
+        else if (q > qmax)
+            q = qmax;
+    } else {
+        double min2 = log(qmin);
+        double max2 = log(qmax);
+
+        q  = log(q);
+        q  = (q - min2) / (max2 - min2) - 0.5;
+        q *= -4.0;
+        q  = 1.0 / (1.0 + exp(q));
+        q  = q * (max2 - min2) + min2;
+
+        q = exp(q);
+    }
+
+    return q;
+}
+
+/**
+ * Modify the bitrate curve from pass1 for one frame.
+ */
+static double get_qscale(MpegEncContext *s, RateControlEntry *rce,
+                         double rate_factor, int frame_num)
+{
+    RateControlContext *rcc = &s->rc_context;
+    AVCodecContext *a       = s->avctx;
+    const int pict_type     = rce->new_pict_type;
+    const double mb_num     = s->mb_num;
+    double q, bits;
+    int i;
+
+    double const_values[] = {
+        M_PI,
+        M_E,
+        rce->i_tex_bits * rce->qscale,
+        rce->p_tex_bits * rce->qscale,
+        (rce->i_tex_bits + rce->p_tex_bits) * (double)rce->qscale,
+        rce->mv_bits / mb_num,
+        rce->pict_type == AV_PICTURE_TYPE_B ? (rce->f_code + rce->b_code) * 0.5 : rce->f_code,
+        rce->i_count / mb_num,
+        rce->mc_mb_var_sum / mb_num,
+        rce->mb_var_sum / mb_num,
+        rce->pict_type == AV_PICTURE_TYPE_I,
+        rce->pict_type == AV_PICTURE_TYPE_P,
+        rce->pict_type == AV_PICTURE_TYPE_B,
+        rcc->qscale_sum[pict_type] / (double)rcc->frame_count[pict_type],
+        a->qcompress,
+        rcc->i_cplx_sum[AV_PICTURE_TYPE_I] / (double)rcc->frame_count[AV_PICTURE_TYPE_I],
+        rcc->i_cplx_sum[AV_PICTURE_TYPE_P] / (double)rcc->frame_count[AV_PICTURE_TYPE_P],
+        rcc->p_cplx_sum[AV_PICTURE_TYPE_P] / (double)rcc->frame_count[AV_PICTURE_TYPE_P],
+        rcc->p_cplx_sum[AV_PICTURE_TYPE_B] / (double)rcc->frame_count[AV_PICTURE_TYPE_B],
+        (rcc->i_cplx_sum[pict_type] + rcc->p_cplx_sum[pict_type]) / (double)rcc->frame_count[pict_type],
+        0
+    };
+
+    bits = av_expr_eval(rcc->rc_eq_eval, const_values, rce);
+    if (isnan(bits)) {
+        av_log(s->avctx, AV_LOG_ERROR, "Error evaluating rc_eq \"%s\"\n", s->rc_eq);
+        return -1;
+    }
+
+    rcc->pass1_rc_eq_output_sum += bits;
+    bits *= rate_factor;
+    if (bits < 0.0)
+        bits = 0.0;
+    bits += 1.0; // avoid 1/0 issues
+
+    /* user override */
+    for (i = 0; i < s->avctx->rc_override_count; i++) {
+        RcOverride *rco = s->avctx->rc_override;
+        if (rco[i].start_frame > frame_num)
+            continue;
+        if (rco[i].end_frame < frame_num)
+            continue;
+
+        if (rco[i].qscale)
+            bits = qp2bits(rce, rco[i].qscale);  // FIXME move at end to really force it?
+        else
+            bits *= rco[i].quality_factor;
+    }
+
+    q = bits2qp(rce, bits);
+
+    /* I/B difference */
+    if (pict_type == AV_PICTURE_TYPE_I && s->avctx->i_quant_factor < 0.0)
+        q = -q * s->avctx->i_quant_factor + s->avctx->i_quant_offset;
+    else if (pict_type == AV_PICTURE_TYPE_B && s->avctx->b_quant_factor < 0.0)
+        q = -q * s->avctx->b_quant_factor + s->avctx->b_quant_offset;
+    if (q < 1)
+        q = 1;
+
+    return q;
+}
+
+static int init_pass2(MpegEncContext *s)
+{
+    RateControlContext *rcc = &s->rc_context;
+    AVCodecContext *a       = s->avctx;
+    int i, toobig;
+    double fps             = get_fps(s->avctx);
+    double complexity[5]   = { 0 }; // approximate bits at quant=1
+    uint64_t const_bits[5] = { 0 }; // quantizer independent bits
+    uint64_t all_const_bits;
+    uint64_t all_available_bits = (uint64_t)(s->bit_rate *
+                                             (double)rcc->num_entries / fps);
+    double rate_factor          = 0;
+    double step;
+    const int filter_size = (int)(a->qblur * 4) | 1;
+    double expected_bits = 0; // init to silence gcc warning
+    double *qscale, *blurred_qscale, qscale_sum;
+
+    /* find complexity & const_bits & decide the pict_types */
+    for (i = 0; i < rcc->num_entries; i++) {
+        RateControlEntry *rce = &rcc->entry[i];
+
+        rce->new_pict_type                = rce->pict_type;
+        rcc->i_cplx_sum[rce->pict_type]  += rce->i_tex_bits * rce->qscale;
+        rcc->p_cplx_sum[rce->pict_type]  += rce->p_tex_bits * rce->qscale;
+        rcc->mv_bits_sum[rce->pict_type] += rce->mv_bits;
+        rcc->frame_count[rce->pict_type]++;
+
+        complexity[rce->new_pict_type] += (rce->i_tex_bits + rce->p_tex_bits) *
+                                          (double)rce->qscale;
+        const_bits[rce->new_pict_type] += rce->mv_bits + rce->misc_bits;
+    }
+
+    all_const_bits = const_bits[AV_PICTURE_TYPE_I] +
+                     const_bits[AV_PICTURE_TYPE_P] +
+                     const_bits[AV_PICTURE_TYPE_B];
+
+    if (all_available_bits < all_const_bits) {
+        av_log(s->avctx, AV_LOG_ERROR, "requested bitrate is too low\n");
+        return -1;
+    }
+
+    qscale         = av_malloc_array(rcc->num_entries, sizeof(double));
+    blurred_qscale = av_malloc_array(rcc->num_entries, sizeof(double));
+    if (!qscale || !blurred_qscale) {
+        av_free(qscale);
+        av_free(blurred_qscale);
+        return AVERROR(ENOMEM);
+    }
+    toobig = 0;
+
+    for (step = 256 * 256; step > 0.0000001; step *= 0.5) {
+        expected_bits = 0;
+        rate_factor  += step;
+
+        rcc->buffer_index = s->avctx->rc_buffer_size / 2;
+
+        /* find qscale */
+        for (i = 0; i < rcc->num_entries; i++) {
+            RateControlEntry *rce = &rcc->entry[i];
+
+            qscale[i] = get_qscale(s, &rcc->entry[i], rate_factor, i);
+            rcc->last_qscale_for[rce->pict_type] = qscale[i];
+        }
+        av_assert0(filter_size % 2 == 1);
+
+        /* fixed I/B QP relative to P mode */
+        for (i = FFMAX(0, rcc->num_entries - 300); i < rcc->num_entries; i++) {
+            RateControlEntry *rce = &rcc->entry[i];
+
+            qscale[i] = get_diff_limited_q(s, rce, qscale[i]);
+        }
+
+        for (i = rcc->num_entries - 1; i >= 0; i--) {
+            RateControlEntry *rce = &rcc->entry[i];
+
+            qscale[i] = get_diff_limited_q(s, rce, qscale[i]);
+        }
+
+        /* smooth curve */
+        for (i = 0; i < rcc->num_entries; i++) {
+            RateControlEntry *rce = &rcc->entry[i];
+            const int pict_type   = rce->new_pict_type;
+            int j;
+            double q = 0.0, sum = 0.0;
+
+            for (j = 0; j < filter_size; j++) {
+                int index    = i + j - filter_size / 2;
+                double d     = index - i;
+                double coeff = a->qblur == 0 ? 1.0 : exp(-d * d / (a->qblur * a->qblur));
+
+                if (index < 0 || index >= rcc->num_entries)
+                    continue;
+                if (pict_type != rcc->entry[index].new_pict_type)
+                    continue;
+                q   += qscale[index] * coeff;
+                sum += coeff;
+            }
+            blurred_qscale[i] = q / sum;
+        }
+
+        /* find expected bits */
+        for (i = 0; i < rcc->num_entries; i++) {
+            RateControlEntry *rce = &rcc->entry[i];
+            double bits;
+
+            rce->new_qscale = modify_qscale(s, rce, blurred_qscale[i], i);
+
+            bits  = qp2bits(rce, rce->new_qscale) + rce->mv_bits + rce->misc_bits;
+            bits += 8 * ff_vbv_update(s, bits);
+
+            rce->expected_bits = expected_bits;
+            expected_bits     += bits;
+        }
+
+        ff_dlog(s->avctx,
+                "expected_bits: %f all_available_bits: %d rate_factor: %f\n",
+                expected_bits, (int)all_available_bits, rate_factor);
+        if (expected_bits > all_available_bits) {
+            rate_factor -= step;
+            ++toobig;
+        }
+    }
+    av_free(qscale);
+    av_free(blurred_qscale);
+
+    /* check bitrate calculations and print info */
+    qscale_sum = 0.0;
+    for (i = 0; i < rcc->num_entries; i++) {
+        ff_dlog(s, "[lavc rc] entry[%d].new_qscale = %.3f  qp = %.3f\n",
+                i,
+                rcc->entry[i].new_qscale,
+                rcc->entry[i].new_qscale / FF_QP2LAMBDA);
+        qscale_sum += av_clip(rcc->entry[i].new_qscale / FF_QP2LAMBDA,
+                              s->avctx->qmin, s->avctx->qmax);
+    }
+    av_assert0(toobig <= 40);
+    av_log(s->avctx, AV_LOG_DEBUG,
+           "[lavc rc] requested bitrate: %"PRId64" bps  expected bitrate: %"PRId64" bps\n",
+           s->bit_rate,
+           (int64_t)(expected_bits / ((double)all_available_bits / s->bit_rate)));
+    av_log(s->avctx, AV_LOG_DEBUG,
+           "[lavc rc] estimated target average qp: %.3f\n",
+           (float)qscale_sum / rcc->num_entries);
+    if (toobig == 0) {
+        av_log(s->avctx, AV_LOG_INFO,
+               "[lavc rc] Using all of requested bitrate is not "
+               "necessary for this video with these parameters.\n");
+    } else if (toobig == 40) {
+        av_log(s->avctx, AV_LOG_ERROR,
+               "[lavc rc] Error: bitrate too low for this video "
+               "with these parameters.\n");
+        return -1;
+    } else if (fabs(expected_bits / all_available_bits - 1.0) > 0.01) {
+        av_log(s->avctx, AV_LOG_ERROR,
+               "[lavc rc] Error: 2pass curve failed to converge\n");
+        return -1;
+    }
+
+    return 0;
+}
+
+av_cold int ff_rate_control_init(MpegEncContext *s)
+{
+    RateControlContext *rcc = &s->rc_context;
+    int i, res;
+    static const char * const const_names[] = {
+        "PI",
+        "E",
+        "iTex",
+        "pTex",
+        "tex",
+        "mv",
+        "fCode",
+        "iCount",
+        "mcVar",
+        "var",
+        "isI",
+        "isP",
+        "isB",
+        "avgQP",
+        "qComp",
+        "avgIITex",
+        "avgPITex",
+        "avgPPTex",
+        "avgBPTex",
+        "avgTex",
+        NULL
+    };
+    static double (* const func1[])(void *, double) = {
+        (double (*)(void *, double)) bits2qp,
+        (double (*)(void *, double)) qp2bits,
+        NULL
+    };
+    static const char * const func1_names[] = {
+        "bits2qp",
+        "qp2bits",
+        NULL
+    };
+    emms_c();
+
+    if (!s->avctx->rc_max_available_vbv_use && s->avctx->rc_buffer_size) {
+        if (s->avctx->rc_max_rate) {
+            s->avctx->rc_max_available_vbv_use = av_clipf(s->avctx->rc_max_rate/(s->avctx->rc_buffer_size*get_fps(s->avctx)), 1.0/3, 1.0);
+        } else
+            s->avctx->rc_max_available_vbv_use = 1.0;
+    }
+
+    res = av_expr_parse(&rcc->rc_eq_eval,
+                        s->rc_eq ? s->rc_eq : "tex^qComp",
+                        const_names, func1_names, func1,
+                        NULL, NULL, 0, s->avctx);
+    if (res < 0) {
+        av_log(s->avctx, AV_LOG_ERROR, "Error parsing rc_eq \"%s\"\n", s->rc_eq);
+        return res;
+    }
+
+    for (i = 0; i < 5; i++) {
+        rcc->pred[i].coeff = FF_QP2LAMBDA * 7.0;
+        rcc->pred[i].count = 1.0;
+        rcc->pred[i].decay = 0.4;
+
+        rcc->i_cplx_sum [i] =
+        rcc->p_cplx_sum [i] =
+        rcc->mv_bits_sum[i] =
+        rcc->qscale_sum [i] =
+        rcc->frame_count[i] = 1; // 1 is better because of 1/0 and such
+
+        rcc->last_qscale_for[i] = FF_QP2LAMBDA * 5;
+    }
+    rcc->buffer_index = s->avctx->rc_initial_buffer_occupancy;
+    if (!rcc->buffer_index)
+        rcc->buffer_index = s->avctx->rc_buffer_size * 3 / 4;
+
+    if (s->avctx->flags & AV_CODEC_FLAG_PASS2) {
+        int i;
+        char *p;
+
+        /* find number of pics */
+        p = s->avctx->stats_in;
+        for (i = -1; p; i++)
+            p = strchr(p + 1, ';');
+        i += s->max_b_frames;
+        if (i <= 0 || i >= INT_MAX / sizeof(RateControlEntry))
+            return -1;
+        rcc->entry       = av_mallocz(i * sizeof(RateControlEntry));
+        if (!rcc->entry)
+            return AVERROR(ENOMEM);
+        rcc->num_entries = i;
+
+        /* init all to skipped P-frames
+         * (with B-frames we might have a not encoded frame at the end FIXME) */
+        for (i = 0; i < rcc->num_entries; i++) {
+            RateControlEntry *rce = &rcc->entry[i];
+
+            rce->pict_type  = rce->new_pict_type = AV_PICTURE_TYPE_P;
+            rce->qscale     = rce->new_qscale    = FF_QP2LAMBDA * 2;
+            rce->misc_bits  = s->mb_num + 10;
+            rce->mb_var_sum = s->mb_num * 100;
+        }
+
+        /* read stats */
+        p = s->avctx->stats_in;
+        for (i = 0; i < rcc->num_entries - s->max_b_frames; i++) {
+            RateControlEntry *rce;
+            int picture_number;
+            int e;
+            char *next;
+
+            next = strchr(p, ';');
+            if (next) {
+                (*next) = 0; // sscanf is unbelievably slow on looong strings // FIXME copy / do not write
+                next++;
+            }
+            e = sscanf(p, " in:%d ", &picture_number);
+
+            av_assert0(picture_number >= 0);
+            av_assert0(picture_number < rcc->num_entries);
+            rce = &rcc->entry[picture_number];
+
+            e += sscanf(p, " in:%*d out:%*d type:%d q:%f itex:%d ptex:%d mv:%d misc:%d fcode:%d bcode:%d mc-var:%"SCNd64" var:%"SCNd64" icount:%d skipcount:%d hbits:%d",
+                        &rce->pict_type, &rce->qscale, &rce->i_tex_bits, &rce->p_tex_bits,
+                        &rce->mv_bits, &rce->misc_bits,
+                        &rce->f_code, &rce->b_code,
+                        &rce->mc_mb_var_sum, &rce->mb_var_sum,
+                        &rce->i_count, &rce->skip_count, &rce->header_bits);
+            if (e != 14) {
+                av_log(s->avctx, AV_LOG_ERROR,
+                       "statistics are damaged at line %d, parser out=%d\n",
+                       i, e);
+                return -1;
+            }
+
+            p = next;
+        }
+
+        if (init_pass2(s) < 0) {
+            ff_rate_control_uninit(s);
+            return -1;
+        }
+    }
+
+    if (!(s->avctx->flags & AV_CODEC_FLAG_PASS2)) {
+        rcc->short_term_qsum   = 0.001;
+        rcc->short_term_qcount = 0.001;
+
+        rcc->pass1_rc_eq_output_sum = 0.001;
+        rcc->pass1_wanted_bits      = 0.001;
+
+        if (s->avctx->qblur > 1.0) {
+            av_log(s->avctx, AV_LOG_ERROR, "qblur too large\n");
+            return -1;
+        }
+        /* init stuff with the user specified complexity */
+        if (s->rc_initial_cplx) {
+            for (i = 0; i < 60 * 30; i++) {
+                double bits = s->rc_initial_cplx * (i / 10000.0 + 1.0) * s->mb_num;
+                RateControlEntry rce;
+
+                if (i % ((s->gop_size + 3) / 4) == 0)
+                    rce.pict_type = AV_PICTURE_TYPE_I;
+                else if (i % (s->max_b_frames + 1))
+                    rce.pict_type = AV_PICTURE_TYPE_B;
+                else
+                    rce.pict_type = AV_PICTURE_TYPE_P;
+
+                rce.new_pict_type = rce.pict_type;
+                rce.mc_mb_var_sum = bits * s->mb_num / 100000;
+                rce.mb_var_sum    = s->mb_num;
+
+                rce.qscale    = FF_QP2LAMBDA * 2;
+                rce.f_code    = 2;
+                rce.b_code    = 1;
+                rce.misc_bits = 1;
+
+                if (s->pict_type == AV_PICTURE_TYPE_I) {
+                    rce.i_count    = s->mb_num;
+                    rce.i_tex_bits = bits;
+                    rce.p_tex_bits = 0;
+                    rce.mv_bits    = 0;
+                } else {
+                    rce.i_count    = 0; // FIXME we do know this approx
+                    rce.i_tex_bits = 0;
+                    rce.p_tex_bits = bits * 0.9;
+                    rce.mv_bits    = bits * 0.1;
+                }
+                rcc->i_cplx_sum[rce.pict_type]  += rce.i_tex_bits * rce.qscale;
+                rcc->p_cplx_sum[rce.pict_type]  += rce.p_tex_bits * rce.qscale;
+                rcc->mv_bits_sum[rce.pict_type] += rce.mv_bits;
+                rcc->frame_count[rce.pict_type]++;
+
+                get_qscale(s, &rce, rcc->pass1_wanted_bits / rcc->pass1_rc_eq_output_sum, i);
+
+                // FIXME misbehaves a little for variable fps
+                rcc->pass1_wanted_bits += s->bit_rate / get_fps(s->avctx);
+            }
+        }
+    }
+
+    return 0;
+}
+
+av_cold void ff_rate_control_uninit(MpegEncContext *s)
+{
+    RateControlContext *rcc = &s->rc_context;
+    emms_c();
+
+    av_expr_free(rcc->rc_eq_eval);
+    av_freep(&rcc->entry);
+}
+
+int ff_vbv_update(MpegEncContext *s, int frame_size)
+{
+    RateControlContext *rcc = &s->rc_context;
+    const double fps        = get_fps(s->avctx);
+    const int buffer_size   = s->avctx->rc_buffer_size;
+    const double min_rate   = s->avctx->rc_min_rate / fps;
+    const double max_rate   = s->avctx->rc_max_rate / fps;
+
+    ff_dlog(s, "%d %f %d %f %f\n",
+            buffer_size, rcc->buffer_index, frame_size, min_rate, max_rate);
+
+    if (buffer_size) {
+        int left;
+
+        rcc->buffer_index -= frame_size;
+        if (rcc->buffer_index < 0) {
+            av_log(s->avctx, AV_LOG_ERROR, "rc buffer underflow\n");
+            if (frame_size > max_rate && s->qscale == s->avctx->qmax) {
+                av_log(s->avctx, AV_LOG_ERROR, "max bitrate possibly too small or try trellis with large lmax or increase qmax\n");
+            }
+            rcc->buffer_index = 0;
+        }
+
+        left = buffer_size - rcc->buffer_index - 1;
+        rcc->buffer_index += av_clip(left, min_rate, max_rate);
+
+        if (rcc->buffer_index > buffer_size) {
+            int stuffing = ceil((rcc->buffer_index - buffer_size) / 8);
+
+            if (stuffing < 4 && s->codec_id == AV_CODEC_ID_MPEG4)
+                stuffing = 4;
+            rcc->buffer_index -= 8 * stuffing;
+
+            if (s->avctx->debug & FF_DEBUG_RC)
+                av_log(s->avctx, AV_LOG_DEBUG, "stuffing %d bytes\n", stuffing);
+
+            return stuffing;
+        }
+    }
+    return 0;
+}
+
+static double predict_size(Predictor *p, double q, double var)
+{
+    return p->coeff * var / (q * p->count);
+}
+
+static void update_predictor(Predictor *p, double q, double var, double size)
+{
+    double new_coeff = size * q / (var + 1);
+    if (var < 10)
+        return;
+
+    p->count *= p->decay;
+    p->coeff *= p->decay;
+    p->count++;
+    p->coeff += new_coeff;
+}
+
+static void adaptive_quantization(MpegEncContext *s, double q)
+{
+    int i;
+    const float lumi_masking         = s->avctx->lumi_masking / (128.0 * 128.0);
+    const float dark_masking         = s->avctx->dark_masking / (128.0 * 128.0);
+    const float temp_cplx_masking    = s->avctx->temporal_cplx_masking;
+    const float spatial_cplx_masking = s->avctx->spatial_cplx_masking;
+    const float p_masking            = s->avctx->p_masking;
+    const float border_masking       = s->border_masking;
+    float bits_sum                   = 0.0;
+    float cplx_sum                   = 0.0;
+    float *cplx_tab                  = s->cplx_tab;
+    float *bits_tab                  = s->bits_tab;
+    const int qmin                   = s->avctx->mb_lmin;
+    const int qmax                   = s->avctx->mb_lmax;
+    Picture *const pic               = &s->current_picture;
+    const int mb_width               = s->mb_width;
+    const int mb_height              = s->mb_height;
+
+    for (i = 0; i < s->mb_num; i++) {
+        const int mb_xy = s->mb_index2xy[i];
+        float temp_cplx = sqrt(pic->mc_mb_var[mb_xy]); // FIXME merge in pow()
+        float spat_cplx = sqrt(pic->mb_var[mb_xy]);
+        const int lumi  = pic->mb_mean[mb_xy];
+        float bits, cplx, factor;
+        int mb_x = mb_xy % s->mb_stride;
+        int mb_y = mb_xy / s->mb_stride;
+        int mb_distance;
+        float mb_factor = 0.0;
+        if (spat_cplx < 4)
+            spat_cplx = 4;              // FIXME fine-tune
+        if (temp_cplx < 4)
+            temp_cplx = 4;              // FIXME fine-tune
+
+        if ((s->mb_type[mb_xy] & CANDIDATE_MB_TYPE_INTRA)) { // FIXME hq mode
+            cplx   = spat_cplx;
+            factor = 1.0 + p_masking;
+        } else {
+            cplx   = temp_cplx;
+            factor = pow(temp_cplx, -temp_cplx_masking);
+        }
+        factor *= pow(spat_cplx, -spatial_cplx_masking);
+
+        if (lumi > 127)
+            factor *= (1.0 - (lumi - 128) * (lumi - 128) * lumi_masking);
+        else
+            factor *= (1.0 - (lumi - 128) * (lumi - 128) * dark_masking);
+
+        if (mb_x < mb_width / 5) {
+            mb_distance = mb_width / 5 - mb_x;
+            mb_factor   = (float)mb_distance / (float)(mb_width / 5);
+        } else if (mb_x > 4 * mb_width / 5) {
+            mb_distance = mb_x - 4 * mb_width / 5;
+            mb_factor   = (float)mb_distance / (float)(mb_width / 5);
+        }
+        if (mb_y < mb_height / 5) {
+            mb_distance = mb_height / 5 - mb_y;
+            mb_factor   = FFMAX(mb_factor,
+                                (float)mb_distance / (float)(mb_height / 5));
+        } else if (mb_y > 4 * mb_height / 5) {
+            mb_distance = mb_y - 4 * mb_height / 5;
+            mb_factor   = FFMAX(mb_factor,
+                                (float)mb_distance / (float)(mb_height / 5));
+        }
+
+        factor *= 1.0 - border_masking * mb_factor;
+
+        if (factor < 0.00001)
+            factor = 0.00001;
+
+        bits        = cplx * factor;
+        cplx_sum   += cplx;
+        bits_sum   += bits;
+        cplx_tab[i] = cplx;
+        bits_tab[i] = bits;
+    }
+
+    /* handle qmin/qmax clipping */
+    if (s->mpv_flags & FF_MPV_FLAG_NAQ) {
+        float factor = bits_sum / cplx_sum;
+        for (i = 0; i < s->mb_num; i++) {
+            float newq = q * cplx_tab[i] / bits_tab[i];
+            newq *= factor;
+
+            if (newq > qmax) {
+                bits_sum -= bits_tab[i];
+                cplx_sum -= cplx_tab[i] * q / qmax;
+            } else if (newq < qmin) {
+                bits_sum -= bits_tab[i];
+                cplx_sum -= cplx_tab[i] * q / qmin;
+            }
+        }
+        if (bits_sum < 0.001)
+            bits_sum = 0.001;
+        if (cplx_sum < 0.001)
+            cplx_sum = 0.001;
+    }
+
+    for (i = 0; i < s->mb_num; i++) {
+        const int mb_xy = s->mb_index2xy[i];
+        float newq      = q * cplx_tab[i] / bits_tab[i];
+        int intq;
+
+        if (s->mpv_flags & FF_MPV_FLAG_NAQ) {
+            newq *= bits_sum / cplx_sum;
+        }
+
+        intq = (int)(newq + 0.5);
+
+        if (intq > qmax)
+            intq = qmax;
+        else if (intq < qmin)
+            intq = qmin;
+        s->lambda_table[mb_xy] = intq;
+    }
+}
+
+void ff_get_2pass_fcode(MpegEncContext *s)
+{
+    RateControlContext *rcc = &s->rc_context;
+    RateControlEntry *rce   = &rcc->entry[s->picture_number];
+
+    s->f_code = rce->f_code;
+    s->b_code = rce->b_code;
+}
+
+// FIXME rd or at least approx for dquant
+
+float ff_rate_estimate_qscale(MpegEncContext *s, int dry_run)
+{
+    float q;
+    int qmin, qmax;
+    float br_compensation;
+    double diff;
+    double short_term_q;
+    double fps;
+    int picture_number = s->picture_number;
+    int64_t wanted_bits;
+    RateControlContext *rcc = &s->rc_context;
+    AVCodecContext *a       = s->avctx;
+    RateControlEntry local_rce, *rce;
+    double bits;
+    double rate_factor;
+    int64_t var;
+    const int pict_type = s->pict_type;
+    Picture * const pic = &s->current_picture;
+    emms_c();
+
+    get_qminmax(&qmin, &qmax, s, pict_type);
+
+    fps = get_fps(s->avctx);
+    /* update predictors */
+    if (picture_number > 2 && !dry_run) {
+        const int64_t last_var =
+            s->last_pict_type == AV_PICTURE_TYPE_I ? rcc->last_mb_var_sum
+                                                   : rcc->last_mc_mb_var_sum;
+        av_assert1(s->frame_bits >= s->stuffing_bits);
+        update_predictor(&rcc->pred[s->last_pict_type],
+                         rcc->last_qscale,
+                         sqrt(last_var),
+                         s->frame_bits - s->stuffing_bits);
+    }
+
+    if (s->avctx->flags & AV_CODEC_FLAG_PASS2) {
+        av_assert0(picture_number >= 0);
+        if (picture_number >= rcc->num_entries) {
+            av_log(s, AV_LOG_ERROR, "Input is longer than 2-pass log file\n");
+            return -1;
+        }
+        rce         = &rcc->entry[picture_number];
+        wanted_bits = rce->expected_bits;
+    } else {
+        Picture *dts_pic;
+        rce = &local_rce;
+
+        /* FIXME add a dts field to AVFrame and ensure it is set and use it
+         * here instead of reordering but the reordering is simpler for now
+         * until H.264 B-pyramid must be handled. */
+        if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay)
+            dts_pic = s->current_picture_ptr;
+        else
+            dts_pic = s->last_picture_ptr;
+
+        if (!dts_pic || dts_pic->f->pts == AV_NOPTS_VALUE)
+            wanted_bits = (uint64_t)(s->bit_rate * (double)picture_number / fps);
+        else
+            wanted_bits = (uint64_t)(s->bit_rate * (double)dts_pic->f->pts / fps);
+    }
+
+    diff = s->total_bits - wanted_bits;
+    br_compensation = (a->bit_rate_tolerance - diff) / a->bit_rate_tolerance;
+    if (br_compensation <= 0.0)
+        br_compensation = 0.001;
+
+    var = pict_type == AV_PICTURE_TYPE_I ? pic->mb_var_sum : pic->mc_mb_var_sum;
+
+    short_term_q = 0; /* avoid warning */
+    if (s->avctx->flags & AV_CODEC_FLAG_PASS2) {
+        if (pict_type != AV_PICTURE_TYPE_I)
+            av_assert0(pict_type == rce->new_pict_type);
+
+        q = rce->new_qscale / br_compensation;
+        ff_dlog(s, "%f %f %f last:%d var:%"PRId64" type:%d//\n", q, rce->new_qscale,
+                br_compensation, s->frame_bits, var, pict_type);
+    } else {
+        rce->pict_type     =
+        rce->new_pict_type = pict_type;
+        rce->mc_mb_var_sum = pic->mc_mb_var_sum;
+        rce->mb_var_sum    = pic->mb_var_sum;
+        rce->qscale        = FF_QP2LAMBDA * 2;
+        rce->f_code        = s->f_code;
+        rce->b_code        = s->b_code;
+        rce->misc_bits     = 1;
+
+        bits = predict_size(&rcc->pred[pict_type], rce->qscale, sqrt(var));
+        if (pict_type == AV_PICTURE_TYPE_I) {
+            rce->i_count    = s->mb_num;
+            rce->i_tex_bits = bits;
+            rce->p_tex_bits = 0;
+            rce->mv_bits    = 0;
+        } else {
+            rce->i_count    = 0;    // FIXME we do know this approx
+            rce->i_tex_bits = 0;
+            rce->p_tex_bits = bits * 0.9;
+            rce->mv_bits    = bits * 0.1;
+        }
+        rcc->i_cplx_sum[pict_type]  += rce->i_tex_bits * rce->qscale;
+        rcc->p_cplx_sum[pict_type]  += rce->p_tex_bits * rce->qscale;
+        rcc->mv_bits_sum[pict_type] += rce->mv_bits;
+        rcc->frame_count[pict_type]++;
+
+        rate_factor = rcc->pass1_wanted_bits /
+                      rcc->pass1_rc_eq_output_sum * br_compensation;
+
+        q = get_qscale(s, rce, rate_factor, picture_number);
+        if (q < 0)
+            return -1;
+
+        av_assert0(q > 0.0);
+        q = get_diff_limited_q(s, rce, q);
+        av_assert0(q > 0.0);
+
+        // FIXME type dependent blur like in 2-pass
+        if (pict_type == AV_PICTURE_TYPE_P || s->intra_only) {
+            rcc->short_term_qsum   *= a->qblur;
+            rcc->short_term_qcount *= a->qblur;
+
+            rcc->short_term_qsum += q;
+            rcc->short_term_qcount++;
+            q = short_term_q = rcc->short_term_qsum / rcc->short_term_qcount;
+        }
+        av_assert0(q > 0.0);
+
+        q = modify_qscale(s, rce, q, picture_number);
+
+        rcc->pass1_wanted_bits += s->bit_rate / fps;
+
+        av_assert0(q > 0.0);
+    }
+
+    if (s->avctx->debug & FF_DEBUG_RC) {
+        av_log(s->avctx, AV_LOG_DEBUG,
+               "%c qp:%d<%2.1f<%d %d want:%d total:%d comp:%f st_q:%2.2f "
+               "size:%d var:%"PRId64"/%"PRId64" br:%"PRId64" fps:%d\n",
+               av_get_picture_type_char(pict_type),
+               qmin, q, qmax, picture_number,
+               (int)wanted_bits / 1000, (int)s->total_bits / 1000,
+               br_compensation, short_term_q, s->frame_bits,
+               pic->mb_var_sum, pic->mc_mb_var_sum,
+               s->bit_rate / 1000, (int)fps);
+    }
+
+    if (q < qmin)
+        q = qmin;
+    else if (q > qmax)
+        q = qmax;
+
+    if (s->adaptive_quant)
+        adaptive_quantization(s, q);
+    else
+        q = (int)(q + 0.5);
+
+    if (!dry_run) {
+        rcc->last_qscale        = q;
+        rcc->last_mc_mb_var_sum = pic->mc_mb_var_sum;
+        rcc->last_mb_var_sum    = pic->mb_var_sum;
+    }
+    return q;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ratecontrol.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ratecontrol.h
new file mode 100644
index 000000000..2a7aaec64
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/ratecontrol.h
@@ -0,0 +1,99 @@
+/*
+ * Ratecontrol
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_RATECONTROL_H
+#define AVCODEC_RATECONTROL_H
+
+/**
+ * @file
+ * ratecontrol header.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include "libavutil/eval.h"
+
+typedef struct Predictor{
+    double coeff;
+    double count;
+    double decay;
+} Predictor;
+
+typedef struct RateControlEntry{
+    int pict_type;
+    float qscale;
+    int mv_bits;
+    int i_tex_bits;
+    int p_tex_bits;
+    int misc_bits;
+    int header_bits;
+    uint64_t expected_bits;
+    int new_pict_type;
+    float new_qscale;
+    int64_t mc_mb_var_sum;
+    int64_t mb_var_sum;
+    int i_count;
+    int skip_count;
+    int f_code;
+    int b_code;
+}RateControlEntry;
+
+/**
+ * rate control context.
+ */
+typedef struct RateControlContext{
+    int num_entries;              ///< number of RateControlEntries
+    RateControlEntry *entry;
+    double buffer_index;          ///< amount of bits in the video/audio buffer
+    Predictor pred[5];
+    double short_term_qsum;       ///< sum of recent qscales
+    double short_term_qcount;     ///< count of recent qscales
+    double pass1_rc_eq_output_sum;///< sum of the output of the rc equation, this is used for normalization
+    double pass1_wanted_bits;     ///< bits which should have been output by the pass1 code (including complexity init)
+    double last_qscale;
+    double last_qscale_for[5];    ///< last qscale for a specific pict type, used for max_diff & ipb factor stuff
+    int64_t last_mc_mb_var_sum;
+    int64_t last_mb_var_sum;
+    uint64_t i_cplx_sum[5];
+    uint64_t p_cplx_sum[5];
+    uint64_t mv_bits_sum[5];
+    uint64_t qscale_sum[5];
+    int frame_count[5];
+    int last_non_b_pict_type;
+
+    void *non_lavc_opaque;        ///< context for non lavc rc code (for example xvid)
+    float dry_run_qscale;         ///< for xvid rc
+    int last_picture_number;      ///< for xvid rc
+    AVExpr * rc_eq_eval;
+}RateControlContext;
+
+struct MpegEncContext;
+
+/* rate control */
+int ff_rate_control_init(struct MpegEncContext *s);
+float ff_rate_estimate_qscale(struct MpegEncContext *s, int dry_run);
+void ff_write_pass1_stats(struct MpegEncContext *s);
+void ff_rate_control_uninit(struct MpegEncContext *s);
+int ff_vbv_update(struct MpegEncContext *s, int frame_size);
+void ff_get_2pass_fcode(struct MpegEncContext *s);
+
+#endif /* AVCODEC_RATECONTROL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/raw.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/raw.c
new file mode 100644
index 000000000..b6fb91c1c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/raw.c
@@ -0,0 +1,338 @@
+/*
+ * Raw Video Codec
+ * Copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Raw Video Codec
+ */
+
+#include "avcodec.h"
+#include "raw.h"
+#include "libavutil/common.h"
+
+const PixelFormatTag ff_raw_pix_fmt_tags[] = {
+    { AV_PIX_FMT_YUV420P, MKTAG('I', '4', '2', '0') }, /* Planar formats */
+    { AV_PIX_FMT_YUV420P, MKTAG('I', 'Y', 'U', 'V') },
+    { AV_PIX_FMT_YUV420P, MKTAG('y', 'v', '1', '2') },
+    { AV_PIX_FMT_YUV420P, MKTAG('Y', 'V', '1', '2') },
+    { AV_PIX_FMT_YUV410P, MKTAG('Y', 'U', 'V', '9') },
+    { AV_PIX_FMT_YUV410P, MKTAG('Y', 'V', 'U', '9') },
+    { AV_PIX_FMT_YUV411P, MKTAG('Y', '4', '1', 'B') },
+    { AV_PIX_FMT_YUV422P, MKTAG('Y', '4', '2', 'B') },
+    { AV_PIX_FMT_YUV422P, MKTAG('P', '4', '2', '2') },
+    { AV_PIX_FMT_YUV422P, MKTAG('Y', 'V', '1', '6') },
+    /* yuvjXXX formats are deprecated hacks specific to libav*,
+       they are identical to yuvXXX  */
+    { AV_PIX_FMT_YUVJ420P, MKTAG('I', '4', '2', '0') }, /* Planar formats */
+    { AV_PIX_FMT_YUVJ420P, MKTAG('I', 'Y', 'U', 'V') },
+    { AV_PIX_FMT_YUVJ420P, MKTAG('Y', 'V', '1', '2') },
+    { AV_PIX_FMT_YUVJ422P, MKTAG('Y', '4', '2', 'B') },
+    { AV_PIX_FMT_YUVJ422P, MKTAG('P', '4', '2', '2') },
+    { AV_PIX_FMT_GRAY8,    MKTAG('Y', '8', '0', '0') },
+    { AV_PIX_FMT_GRAY8,    MKTAG('Y', '8', ' ', ' ') },
+
+    { AV_PIX_FMT_YUYV422, MKTAG('Y', 'U', 'Y', '2') }, /* Packed formats */
+    { AV_PIX_FMT_YUYV422, MKTAG('Y', '4', '2', '2') },
+    { AV_PIX_FMT_YUYV422, MKTAG('V', '4', '2', '2') },
+    { AV_PIX_FMT_YUYV422, MKTAG('V', 'Y', 'U', 'Y') },
+    { AV_PIX_FMT_YUYV422, MKTAG('Y', 'U', 'N', 'V') },
+    { AV_PIX_FMT_YUYV422, MKTAG('Y', 'U', 'Y', 'V') },
+    { AV_PIX_FMT_YVYU422, MKTAG('Y', 'V', 'Y', 'U') }, /* Philips */
+    { AV_PIX_FMT_UYVY422, MKTAG('U', 'Y', 'V', 'Y') },
+    { AV_PIX_FMT_UYVY422, MKTAG('H', 'D', 'Y', 'C') },
+    { AV_PIX_FMT_UYVY422, MKTAG('U', 'Y', 'N', 'V') },
+    { AV_PIX_FMT_UYVY422, MKTAG('U', 'Y', 'N', 'Y') },
+    { AV_PIX_FMT_UYVY422, MKTAG('u', 'y', 'v', '1') },
+    { AV_PIX_FMT_UYVY422, MKTAG('2', 'V', 'u', '1') },
+    { AV_PIX_FMT_UYVY422, MKTAG('A', 'V', 'R', 'n') }, /* Avid AVI Codec 1:1 */
+    { AV_PIX_FMT_UYVY422, MKTAG('A', 'V', '1', 'x') }, /* Avid 1:1x */
+    { AV_PIX_FMT_UYVY422, MKTAG('A', 'V', 'u', 'p') },
+    { AV_PIX_FMT_UYVY422, MKTAG('V', 'D', 'T', 'Z') }, /* SoftLab-NSK VideoTizer */
+    { AV_PIX_FMT_UYVY422, MKTAG('a', 'u', 'v', '2') },
+    { AV_PIX_FMT_UYVY422, MKTAG('c', 'y', 'u', 'v') }, /* CYUV is also Creative YUV */
+    { AV_PIX_FMT_UYYVYY411, MKTAG('Y', '4', '1', '1') },
+    { AV_PIX_FMT_GRAY8,   MKTAG('G', 'R', 'E', 'Y') },
+    { AV_PIX_FMT_NV12,    MKTAG('N', 'V', '1', '2') },
+    { AV_PIX_FMT_NV21,    MKTAG('N', 'V', '2', '1') },
+
+    /* nut */
+    { AV_PIX_FMT_RGB555LE, MKTAG('R', 'G', 'B', 15) },
+    { AV_PIX_FMT_BGR555LE, MKTAG('B', 'G', 'R', 15) },
+    { AV_PIX_FMT_RGB565LE, MKTAG('R', 'G', 'B', 16) },
+    { AV_PIX_FMT_BGR565LE, MKTAG('B', 'G', 'R', 16) },
+    { AV_PIX_FMT_RGB555BE, MKTAG(15 , 'B', 'G', 'R') },
+    { AV_PIX_FMT_BGR555BE, MKTAG(15 , 'R', 'G', 'B') },
+    { AV_PIX_FMT_RGB565BE, MKTAG(16 , 'B', 'G', 'R') },
+    { AV_PIX_FMT_BGR565BE, MKTAG(16 , 'R', 'G', 'B') },
+    { AV_PIX_FMT_RGB444LE, MKTAG('R', 'G', 'B', 12) },
+    { AV_PIX_FMT_BGR444LE, MKTAG('B', 'G', 'R', 12) },
+    { AV_PIX_FMT_RGB444BE, MKTAG(12 , 'B', 'G', 'R') },
+    { AV_PIX_FMT_BGR444BE, MKTAG(12 , 'R', 'G', 'B') },
+    { AV_PIX_FMT_RGBA64LE, MKTAG('R', 'B', 'A', 64 ) },
+    { AV_PIX_FMT_BGRA64LE, MKTAG('B', 'R', 'A', 64 ) },
+    { AV_PIX_FMT_RGBA64BE, MKTAG(64 , 'R', 'B', 'A') },
+    { AV_PIX_FMT_BGRA64BE, MKTAG(64 , 'B', 'R', 'A') },
+    { AV_PIX_FMT_RGBA,     MKTAG('R', 'G', 'B', 'A') },
+    { AV_PIX_FMT_RGB0,     MKTAG('R', 'G', 'B',  0 ) },
+    { AV_PIX_FMT_BGRA,     MKTAG('B', 'G', 'R', 'A') },
+    { AV_PIX_FMT_BGR0,     MKTAG('B', 'G', 'R',  0 ) },
+    { AV_PIX_FMT_ABGR,     MKTAG('A', 'B', 'G', 'R') },
+    { AV_PIX_FMT_0BGR,     MKTAG( 0 , 'B', 'G', 'R') },
+    { AV_PIX_FMT_ARGB,     MKTAG('A', 'R', 'G', 'B') },
+    { AV_PIX_FMT_0RGB,     MKTAG( 0 , 'R', 'G', 'B') },
+    { AV_PIX_FMT_RGB24,    MKTAG('R', 'G', 'B', 24 ) },
+    { AV_PIX_FMT_BGR24,    MKTAG('B', 'G', 'R', 24 ) },
+    { AV_PIX_FMT_YUV411P,  MKTAG('4', '1', '1', 'P') },
+    { AV_PIX_FMT_YUV422P,  MKTAG('4', '2', '2', 'P') },
+    { AV_PIX_FMT_YUVJ422P, MKTAG('4', '2', '2', 'P') },
+    { AV_PIX_FMT_YUV440P,  MKTAG('4', '4', '0', 'P') },
+    { AV_PIX_FMT_YUVJ440P, MKTAG('4', '4', '0', 'P') },
+    { AV_PIX_FMT_YUV444P,  MKTAG('4', '4', '4', 'P') },
+    { AV_PIX_FMT_YUVJ444P, MKTAG('4', '4', '4', 'P') },
+    { AV_PIX_FMT_MONOWHITE,MKTAG('B', '1', 'W', '0') },
+    { AV_PIX_FMT_MONOBLACK,MKTAG('B', '0', 'W', '1') },
+    { AV_PIX_FMT_BGR8,     MKTAG('B', 'G', 'R',  8 ) },
+    { AV_PIX_FMT_RGB8,     MKTAG('R', 'G', 'B',  8 ) },
+    { AV_PIX_FMT_BGR4,     MKTAG('B', 'G', 'R',  4 ) },
+    { AV_PIX_FMT_RGB4,     MKTAG('R', 'G', 'B',  4 ) },
+    { AV_PIX_FMT_RGB4_BYTE,MKTAG('B', '4', 'B', 'Y') },
+    { AV_PIX_FMT_BGR4_BYTE,MKTAG('R', '4', 'B', 'Y') },
+    { AV_PIX_FMT_RGB48LE,  MKTAG('R', 'G', 'B', 48 ) },
+    { AV_PIX_FMT_RGB48BE,  MKTAG( 48, 'R', 'G', 'B') },
+    { AV_PIX_FMT_BGR48LE,  MKTAG('B', 'G', 'R', 48 ) },
+    { AV_PIX_FMT_BGR48BE,  MKTAG( 48, 'B', 'G', 'R') },
+    { AV_PIX_FMT_GRAY9LE,     MKTAG('Y', '1',  0 ,  9 ) },
+    { AV_PIX_FMT_GRAY9BE,     MKTAG( 9 ,  0 , '1', 'Y') },
+    { AV_PIX_FMT_GRAY10LE,    MKTAG('Y', '1',  0 , 10 ) },
+    { AV_PIX_FMT_GRAY10BE,    MKTAG(10 ,  0 , '1', 'Y') },
+    { AV_PIX_FMT_GRAY12LE,    MKTAG('Y', '1',  0 , 12 ) },
+    { AV_PIX_FMT_GRAY12BE,    MKTAG(12 ,  0 , '1', 'Y') },
+    { AV_PIX_FMT_GRAY14LE,    MKTAG('Y', '1',  0 , 14 ) },
+    { AV_PIX_FMT_GRAY14BE,    MKTAG(14 ,  0 , '1', 'Y') },
+    { AV_PIX_FMT_GRAY16LE,    MKTAG('Y', '1',  0 , 16 ) },
+    { AV_PIX_FMT_GRAY16BE,    MKTAG(16 ,  0 , '1', 'Y') },
+    { AV_PIX_FMT_YUV420P9LE,  MKTAG('Y', '3', 11 ,  9 ) },
+    { AV_PIX_FMT_YUV420P9BE,  MKTAG( 9 , 11 , '3', 'Y') },
+    { AV_PIX_FMT_YUV422P9LE,  MKTAG('Y', '3', 10 ,  9 ) },
+    { AV_PIX_FMT_YUV422P9BE,  MKTAG( 9 , 10 , '3', 'Y') },
+    { AV_PIX_FMT_YUV444P9LE,  MKTAG('Y', '3',  0 ,  9 ) },
+    { AV_PIX_FMT_YUV444P9BE,  MKTAG( 9 ,  0 , '3', 'Y') },
+    { AV_PIX_FMT_YUV420P10LE, MKTAG('Y', '3', 11 , 10 ) },
+    { AV_PIX_FMT_YUV420P10BE, MKTAG(10 , 11 , '3', 'Y') },
+    { AV_PIX_FMT_YUV422P10LE, MKTAG('Y', '3', 10 , 10 ) },
+    { AV_PIX_FMT_YUV422P10BE, MKTAG(10 , 10 , '3', 'Y') },
+    { AV_PIX_FMT_YUV444P10LE, MKTAG('Y', '3',  0 , 10 ) },
+    { AV_PIX_FMT_YUV444P10BE, MKTAG(10 ,  0 , '3', 'Y') },
+    { AV_PIX_FMT_YUV420P12LE, MKTAG('Y', '3', 11 , 12 ) },
+    { AV_PIX_FMT_YUV420P12BE, MKTAG(12 , 11 , '3', 'Y') },
+    { AV_PIX_FMT_YUV422P12LE, MKTAG('Y', '3', 10 , 12 ) },
+    { AV_PIX_FMT_YUV422P12BE, MKTAG(12 , 10 , '3', 'Y') },
+    { AV_PIX_FMT_YUV444P12LE, MKTAG('Y', '3',  0 , 12 ) },
+    { AV_PIX_FMT_YUV444P12BE, MKTAG(12 ,  0 , '3', 'Y') },
+    { AV_PIX_FMT_YUV420P14LE, MKTAG('Y', '3', 11 , 14 ) },
+    { AV_PIX_FMT_YUV420P14BE, MKTAG(14 , 11 , '3', 'Y') },
+    { AV_PIX_FMT_YUV422P14LE, MKTAG('Y', '3', 10 , 14 ) },
+    { AV_PIX_FMT_YUV422P14BE, MKTAG(14 , 10 , '3', 'Y') },
+    { AV_PIX_FMT_YUV444P14LE, MKTAG('Y', '3',  0 , 14 ) },
+    { AV_PIX_FMT_YUV444P14BE, MKTAG(14 ,  0 , '3', 'Y') },
+    { AV_PIX_FMT_YUV420P16LE, MKTAG('Y', '3', 11 , 16 ) },
+    { AV_PIX_FMT_YUV420P16BE, MKTAG(16 , 11 , '3', 'Y') },
+    { AV_PIX_FMT_YUV422P16LE, MKTAG('Y', '3', 10 , 16 ) },
+    { AV_PIX_FMT_YUV422P16BE, MKTAG(16 , 10 , '3', 'Y') },
+    { AV_PIX_FMT_YUV444P16LE, MKTAG('Y', '3',  0 , 16 ) },
+    { AV_PIX_FMT_YUV444P16BE, MKTAG(16 ,  0 , '3', 'Y') },
+    { AV_PIX_FMT_YUVA420P,    MKTAG('Y', '4', 11 ,  8 ) },
+    { AV_PIX_FMT_YUVA422P,    MKTAG('Y', '4', 10 ,  8 ) },
+    { AV_PIX_FMT_YUVA444P,    MKTAG('Y', '4',  0 ,  8 ) },
+    { AV_PIX_FMT_YA8,         MKTAG('Y', '2',  0 ,  8 ) },
+    { AV_PIX_FMT_PAL8,        MKTAG('P', 'A', 'L',  8 ) },
+
+    { AV_PIX_FMT_YUVA420P9LE,  MKTAG('Y', '4', 11 ,  9 ) },
+    { AV_PIX_FMT_YUVA420P9BE,  MKTAG( 9 , 11 , '4', 'Y') },
+    { AV_PIX_FMT_YUVA422P9LE,  MKTAG('Y', '4', 10 ,  9 ) },
+    { AV_PIX_FMT_YUVA422P9BE,  MKTAG( 9 , 10 , '4', 'Y') },
+    { AV_PIX_FMT_YUVA444P9LE,  MKTAG('Y', '4',  0 ,  9 ) },
+    { AV_PIX_FMT_YUVA444P9BE,  MKTAG( 9 ,  0 , '4', 'Y') },
+    { AV_PIX_FMT_YUVA420P10LE, MKTAG('Y', '4', 11 , 10 ) },
+    { AV_PIX_FMT_YUVA420P10BE, MKTAG(10 , 11 , '4', 'Y') },
+    { AV_PIX_FMT_YUVA422P10LE, MKTAG('Y', '4', 10 , 10 ) },
+    { AV_PIX_FMT_YUVA422P10BE, MKTAG(10 , 10 , '4', 'Y') },
+    { AV_PIX_FMT_YUVA444P10LE, MKTAG('Y', '4',  0 , 10 ) },
+    { AV_PIX_FMT_YUVA444P10BE, MKTAG(10 ,  0 , '4', 'Y') },
+    { AV_PIX_FMT_YUVA422P12LE, MKTAG('Y', '4', 10 , 12 ) },
+    { AV_PIX_FMT_YUVA422P12BE, MKTAG(12 , 10 , '4', 'Y') },
+    { AV_PIX_FMT_YUVA444P12LE, MKTAG('Y', '4',  0 , 12 ) },
+    { AV_PIX_FMT_YUVA444P12BE, MKTAG(12 ,  0 , '4', 'Y') },
+    { AV_PIX_FMT_YUVA420P16LE, MKTAG('Y', '4', 11 , 16 ) },
+    { AV_PIX_FMT_YUVA420P16BE, MKTAG(16 , 11 , '4', 'Y') },
+    { AV_PIX_FMT_YUVA422P16LE, MKTAG('Y', '4', 10 , 16 ) },
+    { AV_PIX_FMT_YUVA422P16BE, MKTAG(16 , 10 , '4', 'Y') },
+    { AV_PIX_FMT_YUVA444P16LE, MKTAG('Y', '4',  0 , 16 ) },
+    { AV_PIX_FMT_YUVA444P16BE, MKTAG(16 ,  0 , '4', 'Y') },
+
+    { AV_PIX_FMT_GBRP,         MKTAG('G', '3', 00 ,  8 ) },
+    { AV_PIX_FMT_GBRP9LE,      MKTAG('G', '3', 00 ,  9 ) },
+    { AV_PIX_FMT_GBRP9BE,      MKTAG( 9 , 00 , '3', 'G') },
+    { AV_PIX_FMT_GBRP10LE,     MKTAG('G', '3', 00 , 10 ) },
+    { AV_PIX_FMT_GBRP10BE,     MKTAG(10 , 00 , '3', 'G') },
+    { AV_PIX_FMT_GBRP12LE,     MKTAG('G', '3', 00 , 12 ) },
+    { AV_PIX_FMT_GBRP12BE,     MKTAG(12 , 00 , '3', 'G') },
+    { AV_PIX_FMT_GBRP14LE,     MKTAG('G', '3', 00 , 14 ) },
+    { AV_PIX_FMT_GBRP14BE,     MKTAG(14 , 00 , '3', 'G') },
+    { AV_PIX_FMT_GBRP16LE,     MKTAG('G', '3', 00 , 16 ) },
+    { AV_PIX_FMT_GBRP16BE,     MKTAG(16 , 00 , '3', 'G') },
+
+    { AV_PIX_FMT_GBRAP,        MKTAG('G', '4', 00 ,  8 ) },
+    { AV_PIX_FMT_GBRAP10LE,    MKTAG('G', '4', 00 , 10 ) },
+    { AV_PIX_FMT_GBRAP10BE,    MKTAG(10 , 00 , '4', 'G') },
+    { AV_PIX_FMT_GBRAP12LE,    MKTAG('G', '4', 00 , 12 ) },
+    { AV_PIX_FMT_GBRAP12BE,    MKTAG(12 , 00 , '4', 'G') },
+    { AV_PIX_FMT_GBRAP16LE,    MKTAG('G', '4', 00 , 16 ) },
+    { AV_PIX_FMT_GBRAP16BE,    MKTAG(16 , 00 , '4', 'G') },
+
+    { AV_PIX_FMT_XYZ12LE,      MKTAG('X', 'Y', 'Z' , 36 ) },
+    { AV_PIX_FMT_XYZ12BE,      MKTAG(36 , 'Z' , 'Y', 'X') },
+
+    { AV_PIX_FMT_BAYER_BGGR8,    MKTAG(0xBA, 'B', 'G', 8   ) },
+    { AV_PIX_FMT_BAYER_BGGR16LE, MKTAG(0xBA, 'B', 'G', 16  ) },
+    { AV_PIX_FMT_BAYER_BGGR16BE, MKTAG(16  , 'G', 'B', 0xBA) },
+    { AV_PIX_FMT_BAYER_RGGB8,    MKTAG(0xBA, 'R', 'G', 8   ) },
+    { AV_PIX_FMT_BAYER_RGGB16LE, MKTAG(0xBA, 'R', 'G', 16  ) },
+    { AV_PIX_FMT_BAYER_RGGB16BE, MKTAG(16  , 'G', 'R', 0xBA) },
+    { AV_PIX_FMT_BAYER_GBRG8,    MKTAG(0xBA, 'G', 'B', 8   ) },
+    { AV_PIX_FMT_BAYER_GBRG16LE, MKTAG(0xBA, 'G', 'B', 16  ) },
+    { AV_PIX_FMT_BAYER_GBRG16BE, MKTAG(16,   'B', 'G', 0xBA) },
+    { AV_PIX_FMT_BAYER_GRBG8,    MKTAG(0xBA, 'G', 'R', 8   ) },
+    { AV_PIX_FMT_BAYER_GRBG16LE, MKTAG(0xBA, 'G', 'R', 16  ) },
+    { AV_PIX_FMT_BAYER_GRBG16BE, MKTAG(16,   'R', 'G', 0xBA) },
+
+    /* quicktime */
+    { AV_PIX_FMT_YUV420P, MKTAG('R', '4', '2', '0') }, /* Radius DV YUV PAL */
+    { AV_PIX_FMT_YUV411P, MKTAG('R', '4', '1', '1') }, /* Radius DV YUV NTSC */
+    { AV_PIX_FMT_UYVY422, MKTAG('2', 'v', 'u', 'y') },
+    { AV_PIX_FMT_UYVY422, MKTAG('2', 'V', 'u', 'y') },
+    { AV_PIX_FMT_UYVY422, MKTAG('A', 'V', 'U', 'I') }, /* FIXME merge both fields */
+    { AV_PIX_FMT_UYVY422, MKTAG('b', 'x', 'y', 'v') },
+    { AV_PIX_FMT_YUYV422, MKTAG('y', 'u', 'v', '2') },
+    { AV_PIX_FMT_YUYV422, MKTAG('y', 'u', 'v', 's') },
+    { AV_PIX_FMT_YUYV422, MKTAG('D', 'V', 'O', 'O') }, /* Digital Voodoo SD 8 Bit */
+    { AV_PIX_FMT_RGB555LE,MKTAG('L', '5', '5', '5') },
+    { AV_PIX_FMT_RGB565LE,MKTAG('L', '5', '6', '5') },
+    { AV_PIX_FMT_RGB565BE,MKTAG('B', '5', '6', '5') },
+    { AV_PIX_FMT_BGR24,   MKTAG('2', '4', 'B', 'G') },
+    { AV_PIX_FMT_BGR24,   MKTAG('b', 'x', 'b', 'g') },
+    { AV_PIX_FMT_BGRA,    MKTAG('B', 'G', 'R', 'A') },
+    { AV_PIX_FMT_RGBA,    MKTAG('R', 'G', 'B', 'A') },
+    { AV_PIX_FMT_RGB24,   MKTAG('b', 'x', 'r', 'g') },
+    { AV_PIX_FMT_ABGR,    MKTAG('A', 'B', 'G', 'R') },
+    { AV_PIX_FMT_GRAY16BE,MKTAG('b', '1', '6', 'g') },
+    { AV_PIX_FMT_RGB48BE, MKTAG('b', '4', '8', 'r') },
+    { AV_PIX_FMT_RGBA64BE,MKTAG('b', '6', '4', 'a') },
+
+    /* vlc */
+    { AV_PIX_FMT_YUV410P,     MKTAG('I', '4', '1', '0') },
+    { AV_PIX_FMT_YUV411P,     MKTAG('I', '4', '1', '1') },
+    { AV_PIX_FMT_YUV422P,     MKTAG('I', '4', '2', '2') },
+    { AV_PIX_FMT_YUV440P,     MKTAG('I', '4', '4', '0') },
+    { AV_PIX_FMT_YUV444P,     MKTAG('I', '4', '4', '4') },
+    { AV_PIX_FMT_YUVJ420P,    MKTAG('J', '4', '2', '0') },
+    { AV_PIX_FMT_YUVJ422P,    MKTAG('J', '4', '2', '2') },
+    { AV_PIX_FMT_YUVJ440P,    MKTAG('J', '4', '4', '0') },
+    { AV_PIX_FMT_YUVJ444P,    MKTAG('J', '4', '4', '4') },
+    { AV_PIX_FMT_YUVA444P,    MKTAG('Y', 'U', 'V', 'A') },
+    { AV_PIX_FMT_YUVA420P,    MKTAG('I', '4', '0', 'A') },
+    { AV_PIX_FMT_YUVA422P,    MKTAG('I', '4', '2', 'A') },
+    { AV_PIX_FMT_RGB8,        MKTAG('R', 'G', 'B', '2') },
+    { AV_PIX_FMT_RGB555LE,    MKTAG('R', 'V', '1', '5') },
+    { AV_PIX_FMT_RGB565LE,    MKTAG('R', 'V', '1', '6') },
+    { AV_PIX_FMT_BGR24,       MKTAG('R', 'V', '2', '4') },
+    { AV_PIX_FMT_BGR0,        MKTAG('R', 'V', '3', '2') },
+    { AV_PIX_FMT_RGBA,        MKTAG('A', 'V', '3', '2') },
+    { AV_PIX_FMT_YUV420P9LE,  MKTAG('I', '0', '9', 'L') },
+    { AV_PIX_FMT_YUV420P9BE,  MKTAG('I', '0', '9', 'B') },
+    { AV_PIX_FMT_YUV422P9LE,  MKTAG('I', '2', '9', 'L') },
+    { AV_PIX_FMT_YUV422P9BE,  MKTAG('I', '2', '9', 'B') },
+    { AV_PIX_FMT_YUV444P9LE,  MKTAG('I', '4', '9', 'L') },
+    { AV_PIX_FMT_YUV444P9BE,  MKTAG('I', '4', '9', 'B') },
+    { AV_PIX_FMT_YUV420P10LE, MKTAG('I', '0', 'A', 'L') },
+    { AV_PIX_FMT_YUV420P10BE, MKTAG('I', '0', 'A', 'B') },
+    { AV_PIX_FMT_YUV422P10LE, MKTAG('I', '2', 'A', 'L') },
+    { AV_PIX_FMT_YUV422P10BE, MKTAG('I', '2', 'A', 'B') },
+    { AV_PIX_FMT_YUV444P10LE, MKTAG('I', '4', 'A', 'L') },
+    { AV_PIX_FMT_YUV444P10BE, MKTAG('I', '4', 'A', 'B') },
+    { AV_PIX_FMT_YUV420P12LE, MKTAG('I', '0', 'C', 'L') },
+    { AV_PIX_FMT_YUV420P12BE, MKTAG('I', '0', 'C', 'B') },
+    { AV_PIX_FMT_YUV422P12LE, MKTAG('I', '2', 'C', 'L') },
+    { AV_PIX_FMT_YUV422P12BE, MKTAG('I', '2', 'C', 'B') },
+    { AV_PIX_FMT_YUV444P12LE, MKTAG('I', '4', 'C', 'L') },
+    { AV_PIX_FMT_YUV444P12BE, MKTAG('I', '4', 'C', 'B') },
+    { AV_PIX_FMT_YUV420P16LE, MKTAG('I', '0', 'F', 'L') },
+    { AV_PIX_FMT_YUV420P16BE, MKTAG('I', '0', 'F', 'B') },
+    { AV_PIX_FMT_YUV444P16LE, MKTAG('I', '4', 'F', 'L') },
+    { AV_PIX_FMT_YUV444P16BE, MKTAG('I', '4', 'F', 'B') },
+
+    /* special */
+    { AV_PIX_FMT_RGB565LE,MKTAG( 3 ,  0 ,  0 ,  0 ) }, /* flipped RGB565LE */
+    { AV_PIX_FMT_YUV444P, MKTAG('Y', 'V', '2', '4') }, /* YUV444P, swapped UV */
+
+    { AV_PIX_FMT_NONE, 0 },
+};
+
+const struct PixelFormatTag *avpriv_get_raw_pix_fmt_tags(void)
+{
+    return ff_raw_pix_fmt_tags;
+}
+
+unsigned int avcodec_pix_fmt_to_codec_tag(enum AVPixelFormat fmt)
+{
+    const PixelFormatTag *tags = ff_raw_pix_fmt_tags;
+    while (tags->pix_fmt >= 0) {
+        if (tags->pix_fmt == fmt)
+            return tags->fourcc;
+        tags++;
+    }
+    return 0;
+}
+
+const PixelFormatTag avpriv_pix_fmt_bps_avi[] = {
+    { AV_PIX_FMT_PAL8,    1 },
+    { AV_PIX_FMT_PAL8,    2 },
+    { AV_PIX_FMT_PAL8,    4 },
+    { AV_PIX_FMT_PAL8,    8 },
+    { AV_PIX_FMT_RGB444LE, 12 },
+    { AV_PIX_FMT_RGB555LE, 15 },
+    { AV_PIX_FMT_RGB555LE, 16 },
+    { AV_PIX_FMT_BGR24,  24 },
+    { AV_PIX_FMT_BGRA,   32 },
+    { AV_PIX_FMT_NONE,    0 },
+};
+
+const PixelFormatTag avpriv_pix_fmt_bps_mov[] = {
+    { AV_PIX_FMT_PAL8,      1 },
+    { AV_PIX_FMT_PAL8,      2 },
+    { AV_PIX_FMT_PAL8,      4 },
+    { AV_PIX_FMT_PAL8,      8 },
+    { AV_PIX_FMT_RGB555BE, 16 },
+    { AV_PIX_FMT_RGB24,    24 },
+    { AV_PIX_FMT_ARGB,     32 },
+    { AV_PIX_FMT_PAL8,     33 },
+    { AV_PIX_FMT_NONE,      0 },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/raw.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/raw.h
new file mode 100644
index 000000000..28a27b1f9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/raw.h
@@ -0,0 +1,48 @@
+/*
+ * Raw Video Codec
+ * Copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Raw Video Codec
+ */
+
+#ifndef AVCODEC_RAW_H
+#define AVCODEC_RAW_H
+
+#include "avcodec.h"
+#include "internal.h"
+#include "libavutil/internal.h"
+
+typedef struct PixelFormatTag {
+    enum AVPixelFormat pix_fmt;
+    unsigned int fourcc;
+} PixelFormatTag;
+
+extern const PixelFormatTag ff_raw_pix_fmt_tags[]; // exposed through avpriv_get_raw_pix_fmt_tags()
+
+const struct PixelFormatTag *avpriv_get_raw_pix_fmt_tags(void);
+
+enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc);
+
+extern av_export_avcodec const PixelFormatTag avpriv_pix_fmt_bps_avi[];
+extern av_export_avcodec const PixelFormatTag avpriv_pix_fmt_bps_mov[];
+
+#endif /* AVCODEC_RAW_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/rdft.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/rdft.h
new file mode 100644
index 000000000..ffafca7f2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/rdft.h
@@ -0,0 +1,52 @@
+/*
+ * (I)RDFT transforms
+ * Copyright (c) 2009 Alex Converse <alex dot converse at gmail dot com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#if !defined(AVCODEC_RDFT_H) && (!defined(FFT_FLOAT) || FFT_FLOAT)
+#define AVCODEC_RDFT_H
+
+#include "config.h"
+#include "fft.h"
+
+struct RDFTContext {
+    int nbits;
+    int inverse;
+    int sign_convention;
+
+    /* pre/post rotation tables */
+    const FFTSample *tcos;
+    const FFTSample *tsin;
+    int negative_sin;
+    FFTContext fft;
+    void (*rdft_calc)(struct RDFTContext *s, FFTSample *z);
+};
+
+/**
+ * Set up a real FFT.
+ * @param nbits           log2 of the length of the input array
+ * @param trans           the type of transform
+ */
+int ff_rdft_init(RDFTContext *s, int nbits, enum RDFTransformType trans);
+void ff_rdft_end(RDFTContext *s);
+
+void ff_rdft_init_arm(RDFTContext *s);
+
+
+#endif /* AVCODEC_RDFT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/rl.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/rl.c
new file mode 100644
index 000000000..6eac306b8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/rl.c
@@ -0,0 +1,147 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
+#include "libavutil/mem.h"
+
+#include "rl.h"
+
+void ff_rl_free(RLTable *rl)
+{
+    int i;
+
+    for (i = 0; i < 2; i++) {
+        av_freep(&rl->max_run[i]);
+        av_freep(&rl->max_level[i]);
+        av_freep(&rl->index_run[i]);
+    }
+}
+
+av_cold int ff_rl_init(RLTable *rl,
+                       uint8_t static_store[2][2 * MAX_RUN + MAX_LEVEL + 3])
+{
+    int8_t  max_level[MAX_RUN + 1], max_run[MAX_LEVEL + 1];
+    uint8_t index_run[MAX_RUN + 1];
+    int last, run, level, start, end, i;
+
+    /* If table is static, we can quit if rl->max_level[0] is not NULL */
+    if (static_store && rl->max_level[0])
+        return 0;
+
+    /* compute max_level[], max_run[] and index_run[] */
+    for (last = 0; last < 2; last++) {
+        if (last == 0) {
+            start = 0;
+            end = rl->last;
+        } else {
+            start = rl->last;
+            end = rl->n;
+        }
+
+        memset(max_level, 0, MAX_RUN + 1);
+        memset(max_run, 0, MAX_LEVEL + 1);
+        memset(index_run, rl->n, MAX_RUN + 1);
+        for (i = start; i < end; i++) {
+            run   = rl->table_run[i];
+            level = rl->table_level[i];
+            if (index_run[run] == rl->n)
+                index_run[run] = i;
+            if (level > max_level[run])
+                max_level[run] = level;
+            if (run > max_run[level])
+                max_run[level] = run;
+        }
+        if (static_store)
+            rl->max_level[last] = static_store[last];
+        else {
+            rl->max_level[last] = av_malloc(MAX_RUN + 1);
+            if (!rl->max_level[last])
+                goto fail;
+        }
+        memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
+        if (static_store)
+            rl->max_run[last]   = static_store[last] + MAX_RUN + 1;
+        else {
+            rl->max_run[last]   = av_malloc(MAX_LEVEL + 1);
+            if (!rl->max_run[last])
+                goto fail;
+        }
+        memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
+        if (static_store)
+            rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2;
+        else {
+            rl->index_run[last] = av_malloc(MAX_RUN + 1);
+            if (!rl->index_run[last])
+                goto fail;
+        }
+        memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
+    }
+    return 0;
+
+fail:
+    ff_rl_free(rl);
+    return AVERROR(ENOMEM);
+}
+
+av_cold void ff_rl_init_vlc(RLTable *rl, unsigned static_size)
+{
+    int i, q;
+    VLC_TYPE table[1500][2] = {{0}};
+    VLC vlc = { .table = table, .table_allocated = static_size };
+    av_assert0(static_size <= FF_ARRAY_ELEMS(table));
+    init_vlc(&vlc, 9, rl->n + 1, &rl->table_vlc[0][1], 4, 2, &rl->table_vlc[0][0], 4, 2, INIT_VLC_USE_NEW_STATIC);
+
+    for (q = 0; q < 32; q++) {
+        int qmul = q * 2;
+        int qadd = (q - 1) | 1;
+
+        if (q == 0) {
+            qmul = 1;
+            qadd = 0;
+        }
+        for (i = 0; i < vlc.table_size; i++) {
+            int code = vlc.table[i][0];
+            int len  = vlc.table[i][1];
+            int level, run;
+
+            if (len == 0) { // illegal code
+                run   = 66;
+                level = MAX_LEVEL;
+            } else if (len < 0) { // more bits needed
+                run   = 0;
+                level = code;
+            } else {
+                if (code == rl->n) { // esc
+                    run   = 66;
+                    level =  0;
+                } else {
+                    run   = rl->table_run[code] + 1;
+                    level = rl->table_level[code] * qmul + qadd;
+                    if (code >= rl->last) run += 192;
+                }
+            }
+            rl->rl_vlc[q][i].len   = len;
+            rl->rl_vlc[q][i].level = level;
+            rl->rl_vlc[q][i].run   = run;
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/rl.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/rl.h
new file mode 100644
index 000000000..9a767bc5f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/rl.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2000-2002 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * rl header.
+ */
+
+#ifndef AVCODEC_RL_H
+#define AVCODEC_RL_H
+
+#include <stdint.h>
+
+#include "vlc.h"
+
+/* run length table */
+#define MAX_RUN    64
+#define MAX_LEVEL  64
+
+/** RLTable. */
+typedef struct RLTable {
+    int n;                         ///< number of entries of table_vlc minus 1
+    int last;                      ///< number of values for last = 0
+    const uint16_t (*table_vlc)[2];
+    const int8_t *table_run;
+    const int8_t *table_level;
+    uint8_t *index_run[2];         ///< encoding only
+    int8_t *max_level[2];          ///< encoding & decoding
+    int8_t *max_run[2];            ///< encoding & decoding
+    RL_VLC_ELEM *rl_vlc[32];       ///< decoding only
+} RLTable;
+
+/**
+ * @param static_store static uint8_t array[2][2*MAX_RUN + MAX_LEVEL + 3] which will hold
+ *                     the level and run tables, if this is NULL av_malloc() will be used
+ */
+int ff_rl_init(RLTable *rl, uint8_t static_store[2][2*MAX_RUN + MAX_LEVEL + 3]);
+void ff_rl_init_vlc(RLTable *rl, unsigned static_size);
+
+/**
+ * Free the contents of a dynamically allocated table.
+ */
+void ff_rl_free(RLTable *rl);
+
+#define INIT_VLC_RL(rl, static_size)\
+{\
+    int q;\
+    static RL_VLC_ELEM rl_vlc_table[32][static_size];\
+\
+    if(!rl.rl_vlc[0]){\
+        for(q=0; q<32; q++)\
+            rl.rl_vlc[q]= rl_vlc_table[q];\
+\
+        ff_rl_init_vlc(&rl, static_size);\
+    }\
+}
+
+static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
+{
+    int index;
+    index = rl->index_run[last][run];
+    if (index >= rl->n)
+        return rl->n;
+    if (level > rl->max_level[last][run])
+        return rl->n;
+    return index + level - 1;
+}
+
+#endif /* AVCODEC_RL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/rle.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/rle.h
new file mode 100644
index 000000000..a92edf7a2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/rle.h
@@ -0,0 +1,51 @@
+/*
+ * RLE encoder
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_RLE_H
+#define AVCODEC_RLE_H
+
+#include <stdint.h>
+
+/**
+ * Count up to 127 consecutive pixels which are either all the same or
+ * all differ from the previous and next pixels.
+ * @param start Pointer to the first pixel
+ * @param len Maximum number of pixels
+ * @param bpp Bytes per pixel
+ * @param same 1 if searching for identical pixel values, 0 for differing
+ * @return Number of matching consecutive pixels found
+ */
+int ff_rle_count_pixels(const uint8_t *start, int len, int bpp, int same);
+
+/**
+ * RLE compress the row, with maximum size of out_size.
+ * Value before repeated bytes is (count ^ xor_rep) + add_rep.
+ * Value before raw bytes is (count ^ xor_raw) + add_raw.
+ * @param outbuf Output buffer
+ * @param out_size Maximum output size
+ * @param inbuf Input buffer
+ * @param bpp Bytes per pixel
+ * @param w Image width
+ * @return Size of output in bytes, or -1 if larger than out_size
+ */
+int ff_rle_encode(uint8_t *outbuf, int out_size, const uint8_t *inbuf, int bpp,
+                  int w, int add_rep, int xor_rep, int add_raw, int xor_raw);
+
+#endif /* AVCODEC_RLE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbr.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbr.h
new file mode 100644
index 000000000..eb7d1aec0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbr.h
@@ -0,0 +1,217 @@
+/*
+ * Spectral Band Replication definitions and structures
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ * Copyright (c) 2010      Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Spectral Band Replication definitions and structures
+ * @author Robert Swain ( rob opendot cl )
+ */
+
+#ifndef AVCODEC_SBR_H
+#define AVCODEC_SBR_H
+
+#include <stdint.h>
+#include "fft.h"
+#include "aacps.h"
+#include "sbrdsp.h"
+
+typedef struct AACContext AACContext;
+
+/**
+ * Spectral Band Replication header - spectrum parameters that invoke a reset if they differ from the previous header.
+ */
+typedef struct SpectrumParameters {
+    uint8_t bs_start_freq;
+    uint8_t bs_stop_freq;
+    uint8_t bs_xover_band;
+
+    /**
+     * @name Variables associated with bs_header_extra_1
+     * @{
+     */
+    uint8_t bs_freq_scale;
+    uint8_t bs_alter_scale;
+    uint8_t bs_noise_bands;
+    /** @} */
+} SpectrumParameters;
+
+#define SBR_SYNTHESIS_BUF_SIZE ((1280-128)*2)
+
+/**
+ * Spectral Band Replication per channel data
+ */
+typedef struct SBRData {
+    /**
+     * @name Main bitstream data variables
+     * @{
+     */
+    unsigned           bs_frame_class;
+    unsigned           bs_add_harmonic_flag;
+    AAC_SIGNE          bs_num_env;
+    uint8_t            bs_freq_res[7];
+    AAC_SIGNE          bs_num_noise;
+    uint8_t            bs_df_env[5];
+    uint8_t            bs_df_noise[2];
+    uint8_t            bs_invf_mode[2][5];
+    uint8_t            bs_add_harmonic[48];
+    unsigned           bs_amp_res;
+    /** @} */
+
+    /**
+     * @name State variables
+     * @{
+     */
+    DECLARE_ALIGNED(32, INTFLOAT, synthesis_filterbank_samples)[SBR_SYNTHESIS_BUF_SIZE];
+    DECLARE_ALIGNED(32, INTFLOAT, analysis_filterbank_samples) [1312];
+    int                synthesis_filterbank_samples_offset;
+    ///l_APrev and l_A
+    int                e_a[2];
+    ///Chirp factors
+    INTFLOAT              bw_array[5];
+    ///QMF values of the original signal
+    INTFLOAT              W[2][32][32][2];
+    ///QMF output of the HF adjustor
+    int                Ypos;
+    DECLARE_ALIGNED(16, INTFLOAT, Y)[2][38][64][2];
+    DECLARE_ALIGNED(16, AAC_FLOAT, g_temp)[42][48];
+    AAC_FLOAT          q_temp[42][48];
+    uint8_t            s_indexmapped[8][48];
+    ///Envelope scalefactors
+    uint8_t            env_facs_q[6][48];
+    AAC_FLOAT          env_facs[6][48];
+    ///Noise scalefactors
+    uint8_t            noise_facs_q[3][5];
+    AAC_FLOAT          noise_facs[3][5];
+    ///Envelope time borders
+    uint8_t            t_env[8];
+    ///Envelope time border of the last envelope of the previous frame
+    uint8_t            t_env_num_env_old;
+    ///Noise time borders
+    uint8_t            t_q[3];
+    unsigned           f_indexnoise;
+    unsigned           f_indexsine;
+    /** @} */
+} SBRData;
+
+typedef struct SpectralBandReplication SpectralBandReplication;
+
+/**
+ * aacsbr functions pointers
+ */
+typedef struct AACSBRContext {
+    int (*sbr_lf_gen)(AACContext *ac, SpectralBandReplication *sbr,
+                      INTFLOAT X_low[32][40][2], const INTFLOAT W[2][32][32][2],
+                      int buf_idx);
+    void (*sbr_hf_assemble)(INTFLOAT Y1[38][64][2],
+                            const INTFLOAT X_high[64][40][2],
+                            SpectralBandReplication *sbr, SBRData *ch_data,
+                            const int e_a[2]);
+    int (*sbr_x_gen)(SpectralBandReplication *sbr, INTFLOAT X[2][38][64],
+                     const INTFLOAT Y0[38][64][2], const INTFLOAT Y1[38][64][2],
+                     const INTFLOAT X_low[32][40][2], int ch);
+    void (*sbr_hf_inverse_filter)(SBRDSPContext *dsp,
+                                  INTFLOAT (*alpha0)[2], INTFLOAT (*alpha1)[2],
+                                  const INTFLOAT X_low[32][40][2], int k0);
+} AACSBRContext;
+
+/**
+ * Spectral Band Replication
+ */
+struct SpectralBandReplication {
+    int                sample_rate;
+    int                start;
+    int                ready_for_dequant;
+    int                id_aac;
+    int                reset;
+    SpectrumParameters spectrum_params;
+    int                bs_amp_res_header;
+    /**
+     * @name Variables associated with bs_header_extra_2
+     * @{
+     */
+    unsigned           bs_limiter_bands;
+    unsigned           bs_limiter_gains;
+    unsigned           bs_interpol_freq;
+    unsigned           bs_smoothing_mode;
+    /** @} */
+    unsigned           bs_coupling;
+    AAC_SIGNE          k[5]; ///< k0, k1, k2
+    ///kx', and kx respectively, kx is the first QMF subband where SBR is used.
+    ///kx' is its value from the previous frame
+    AAC_SIGNE          kx[2];
+    ///M' and M respectively, M is the number of QMF subbands that use SBR.
+    AAC_SIGNE          m[2];
+    unsigned           kx_and_m_pushed;
+    ///The number of frequency bands in f_master
+    AAC_SIGNE          n_master;
+    SBRData            data[2];
+    PSContext          ps;
+    ///N_Low and N_High respectively, the number of frequency bands for low and high resolution
+    AAC_SIGNE          n[2];
+    ///Number of noise floor bands
+    AAC_SIGNE          n_q;
+    ///Number of limiter bands
+    AAC_SIGNE          n_lim;
+    ///The master QMF frequency grouping
+    uint16_t           f_master[49];
+    ///Frequency borders for low resolution SBR
+    uint16_t           f_tablelow[25];
+    ///Frequency borders for high resolution SBR
+    uint16_t           f_tablehigh[49];
+    ///Frequency borders for noise floors
+    uint16_t           f_tablenoise[6];
+    ///Frequency borders for the limiter
+    uint16_t           f_tablelim[30];
+    AAC_SIGNE          num_patches;
+    uint8_t            patch_num_subbands[6];
+    uint8_t            patch_start_subband[6];
+    ///QMF low frequency input to the HF generator
+    DECLARE_ALIGNED(16, INTFLOAT, X_low)[32][40][2];
+    ///QMF output of the HF generator
+    DECLARE_ALIGNED(16, INTFLOAT, X_high)[64][40][2];
+    ///QMF values of the reconstructed signal
+    DECLARE_ALIGNED(16, INTFLOAT, X)[2][2][38][64];
+    ///Zeroth coefficient used to filter the subband signals
+    DECLARE_ALIGNED(16, INTFLOAT, alpha0)[64][2];
+    ///First coefficient used to filter the subband signals
+    DECLARE_ALIGNED(16, INTFLOAT, alpha1)[64][2];
+    ///Dequantized envelope scalefactors, remapped
+    AAC_FLOAT          e_origmapped[7][48];
+    ///Dequantized noise scalefactors, remapped
+    AAC_FLOAT          q_mapped[7][48];
+    ///Sinusoidal presence, remapped
+    uint8_t            s_mapped[7][48];
+    ///Estimated envelope
+    AAC_FLOAT          e_curr[7][48];
+    ///Amplitude adjusted noise scalefactors
+    AAC_FLOAT          q_m[7][48];
+    ///Sinusoidal levels
+    AAC_FLOAT          s_m[7][48];
+    AAC_FLOAT          gain[7][48];
+    DECLARE_ALIGNED(32, INTFLOAT, qmf_filter_scratch)[5][64];
+    FFTContext         mdct_ana;
+    FFTContext         mdct;
+    SBRDSPContext      dsp;
+    AACSBRContext      c;
+};
+
+#endif /* AVCODEC_SBR_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp.asm
new file mode 100644
index 000000000..62bbe512e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp.asm
@@ -0,0 +1,548 @@
+;******************************************************************************
+;* AAC Spectral Band Replication decoding functions
+;* Copyright (C) 2012 Christophe Gisquet <christophe.gisquet@gmail.com>
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION_RODATA
+; mask equivalent for multiply by -1.0 1.0
+ps_mask         times 2 dd 1<<31, 0
+ps_mask2        times 2 dd 0, 1<<31
+ps_mask3        dd  0, 0, 0, 1<<31
+ps_noise0       times 2 dd  1.0,  0.0,
+ps_noise2       times 2 dd -1.0,  0.0
+ps_noise13      dd  0.0,  1.0, 0.0, -1.0
+                dd  0.0, -1.0, 0.0,  1.0
+                dd  0.0,  1.0, 0.0, -1.0
+cextern         sbr_noise_table
+cextern         ps_neg
+
+SECTION .text
+
+INIT_XMM sse
+cglobal sbr_sum_square, 2, 3, 6
+    mov        r2d, r1d
+    xorps       m0, m0
+    xorps       m1, m1
+    sar         r2, 3
+    jz          .prepare
+.loop:
+    movu        m2, [r0 +  0]
+    movu        m3, [r0 + 16]
+    movu        m4, [r0 + 32]
+    movu        m5, [r0 + 48]
+    mulps       m2, m2
+    mulps       m3, m3
+    mulps       m4, m4
+    mulps       m5, m5
+    addps       m0, m2
+    addps       m1, m3
+    addps       m0, m4
+    addps       m1, m5
+    add         r0, 64
+    dec         r2
+    jnz         .loop
+.prepare:
+    and         r1, 7
+    sar         r1, 1
+    jz          .end
+; len is a multiple of 2, thus there are at least 4 elements to process
+.endloop:
+    movu        m2, [r0]
+    add         r0, 16
+    mulps       m2, m2
+    dec         r1
+    addps       m0, m2
+    jnz         .endloop
+.end:
+    addps       m0, m1
+    movhlps     m2, m0
+    addps       m0, m2
+    movss       m1, m0
+    shufps      m0, m0, 1
+    addss       m0, m1
+%if ARCH_X86_64 == 0
+    movss       r0m,  m0
+    fld         dword r0m
+%endif
+    RET
+
+%define STEP  40*4*2
+cglobal sbr_hf_g_filt, 5, 6, 5
+    lea         r1, [r1 + 8*r4] ; offset by ixh elements into X_high
+    mov         r5, r3
+    and         r3, 0xFC
+    lea         r2, [r2 + r3*4]
+    lea         r0, [r0 + r3*8]
+    neg         r3
+    jz          .loop1
+.loop4:
+    movlps      m0, [r2 + 4*r3 + 0]
+    movlps      m1, [r2 + 4*r3 + 8]
+    movlps      m2, [r1 + 0*STEP]
+    movlps      m3, [r1 + 2*STEP]
+    movhps      m2, [r1 + 1*STEP]
+    movhps      m3, [r1 + 3*STEP]
+    unpcklps    m0, m0
+    unpcklps    m1, m1
+    mulps       m0, m2
+    mulps       m1, m3
+    movu        [r0 + 8*r3 +  0], m0
+    movu        [r0 + 8*r3 + 16], m1
+    add         r1, 4*STEP
+    add         r3, 4
+    jnz         .loop4
+    and         r5, 3 ; number of single element loops
+    jz          .end
+.loop1: ; element 0 and 1 can be computed at the same time
+    movss       m0, [r2]
+    movlps      m2, [r1]
+    unpcklps    m0, m0
+    mulps       m2, m0
+    movlps    [r0], m2
+    add         r0, 8
+    add         r2, 4
+    add         r1, STEP
+    dec         r5
+    jnz         .loop1
+.end:
+    RET
+
+; void ff_sbr_hf_gen_sse(float (*X_high)[2], const float (*X_low)[2],
+;                        const float alpha0[2], const float alpha1[2],
+;                        float bw, int start, int end)
+;
+cglobal sbr_hf_gen, 4,4,8, X_high, X_low, alpha0, alpha1, BW, S, E
+    ; load alpha factors
+%define bw m0
+%if ARCH_X86_64 == 0 || WIN64
+    movss      bw, BWm
+%endif
+    movlps     m2, [alpha1q]
+    movlps     m1, [alpha0q]
+    shufps     bw, bw, 0
+    mulps      m2, bw             ; (a1[0] a1[1])*bw
+    mulps      m1, bw             ; (a0[0] a0[1])*bw    = (a2 a3)
+    mulps      m2, bw             ; (a1[0] a1[1])*bw*bw = (a0 a1)
+    mova       m3, m1
+    mova       m4, m2
+
+    ; Set pointers
+%if ARCH_X86_64 == 0 || WIN64
+    ; start and end 6th and 7th args on stack
+    mov        r2d, Sm
+    mov        r3d, Em
+    DEFINE_ARGS X_high, X_low, start, end
+%else
+; BW does not actually occupy a register, so shift by 1
+    DEFINE_ARGS X_high, X_low, alpha0, alpha1, start, end
+    movsxd  startq, startd
+    movsxd    endq, endd
+%endif
+    sub     startq, endq         ; neg num of loops
+    lea    X_highq, [X_highq + endq*2*4]
+    lea     X_lowq, [X_lowq  + endq*2*4 - 2*2*4]
+    shl     startq, 3            ; offset from num loops
+
+    mova        m0, [X_lowq + startq]
+    shufps      m3, m3, q1111
+    shufps      m4, m4, q1111
+    xorps       m3, [ps_mask]
+    shufps      m1, m1, q0000
+    shufps      m2, m2, q0000
+    xorps       m4, [ps_mask]
+.loop2:
+    movu        m7, [X_lowq + startq + 8]       ; BbCc
+    mova        m6, m0
+    mova        m5, m7
+    shufps      m0, m0, q2301                   ; aAbB
+    shufps      m7, m7, q2301                   ; bBcC
+    mulps       m0, m4
+    mulps       m7, m3
+    mulps       m6, m2
+    mulps       m5, m1
+    addps       m7, m0
+    mova        m0, [X_lowq + startq + 16]      ; CcDd
+    addps       m7, m0
+    addps       m6, m5
+    addps       m7, m6
+    mova  [X_highq + startq], m7
+    add     startq, 16
+    jnz         .loop2
+    RET
+
+cglobal sbr_sum64x5, 1,2,4,z
+    lea    r1q, [zq+ 256]
+.loop:
+    mova    m0, [zq+   0]
+    mova    m2, [zq+  16]
+    mova    m1, [zq+ 256]
+    mova    m3, [zq+ 272]
+    addps   m0, [zq+ 512]
+    addps   m2, [zq+ 528]
+    addps   m1, [zq+ 768]
+    addps   m3, [zq+ 784]
+    addps   m0, [zq+1024]
+    addps   m2, [zq+1040]
+    addps   m0, m1
+    addps   m2, m3
+    mova  [zq], m0
+    mova  [zq+16], m2
+    add     zq, 32
+    cmp     zq, r1q
+    jne  .loop
+    REP_RET
+
+INIT_XMM sse
+cglobal sbr_qmf_post_shuffle, 2,3,4,W,z
+    lea              r2q, [zq + (64-4)*4]
+    mova              m3, [ps_neg]
+.loop:
+    mova              m1, [zq]
+    xorps             m0, m3, [r2q]
+    shufps            m0, m0, m0, q0123
+    unpcklps          m2, m0, m1
+    unpckhps          m0, m0, m1
+    mova       [Wq +  0], m2
+    mova       [Wq + 16], m0
+    add               Wq, 32
+    sub              r2q, 16
+    add               zq, 16
+    cmp               zq, r2q
+    jl             .loop
+    REP_RET
+
+INIT_XMM sse
+cglobal sbr_neg_odd_64, 1,2,4,z
+    lea        r1q, [zq+256]
+.loop:
+    mova        m0, [zq+ 0]
+    mova        m1, [zq+16]
+    mova        m2, [zq+32]
+    mova        m3, [zq+48]
+    xorps       m0, [ps_mask2]
+    xorps       m1, [ps_mask2]
+    xorps       m2, [ps_mask2]
+    xorps       m3, [ps_mask2]
+    mova   [zq+ 0], m0
+    mova   [zq+16], m1
+    mova   [zq+32], m2
+    mova   [zq+48], m3
+    add         zq, 64
+    cmp         zq, r1q
+    jne      .loop
+    REP_RET
+
+; void ff_sbr_qmf_deint_bfly_sse2(float *v, const float *src0, const float *src1)
+%macro SBR_QMF_DEINT_BFLY  0
+cglobal sbr_qmf_deint_bfly, 3,5,8, v,src0,src1,vrev,c
+    mov               cq, 64*4-2*mmsize
+    lea            vrevq, [vq + 64*4]
+.loop:
+    mova              m0, [src0q+cq]
+    mova              m1, [src1q]
+    mova              m4, [src0q+cq+mmsize]
+    mova              m5, [src1q+mmsize]
+%if cpuflag(sse2)
+    pshufd            m2, m0, q0123
+    pshufd            m3, m1, q0123
+    pshufd            m6, m4, q0123
+    pshufd            m7, m5, q0123
+%else
+    shufps            m2, m0, m0, q0123
+    shufps            m3, m1, m1, q0123
+    shufps            m6, m4, m4, q0123
+    shufps            m7, m5, m5, q0123
+%endif
+    addps             m5, m2
+    subps             m0, m7
+    addps             m1, m6
+    subps             m4, m3
+    mova         [vrevq], m1
+    mova  [vrevq+mmsize], m5
+    mova         [vq+cq], m0
+    mova  [vq+cq+mmsize], m4
+    add            src1q, 2*mmsize
+    add            vrevq, 2*mmsize
+    sub               cq, 2*mmsize
+    jge            .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+SBR_QMF_DEINT_BFLY
+
+INIT_XMM sse2
+SBR_QMF_DEINT_BFLY
+
+INIT_XMM sse2
+cglobal sbr_qmf_pre_shuffle, 1,4,6,z
+%define OFFSET  (32*4-2*mmsize)
+    mov       r3q, OFFSET
+    lea       r1q, [zq + (32+1)*4]
+    lea       r2q, [zq + 64*4]
+    mova       m5, [ps_neg]
+.loop:
+    movu       m0, [r1q]
+    movu       m2, [r1q + mmsize]
+    movu       m1, [zq + r3q + 4 + mmsize]
+    movu       m3, [zq + r3q + 4]
+
+    pxor       m2, m5
+    pxor       m0, m5
+    pshufd     m2, m2, q0123
+    pshufd     m0, m0, q0123
+    SBUTTERFLY dq, 2, 3, 4
+    SBUTTERFLY dq, 0, 1, 4
+    mova  [r2q + 2*r3q + 0*mmsize], m2
+    mova  [r2q + 2*r3q + 1*mmsize], m3
+    mova  [r2q + 2*r3q + 2*mmsize], m0
+    mova  [r2q + 2*r3q + 3*mmsize], m1
+    add       r1q, 2*mmsize
+    sub       r3q, 2*mmsize
+    jge      .loop
+    movq       m2, [zq]
+    movq    [r2q], m2
+    REP_RET
+
+%ifdef PIC
+%define NREGS 1
+%if UNIX64
+%define NOISE_TABLE r6q ; r5q is m_max
+%else
+%define NOISE_TABLE r5q
+%endif
+%else
+%define NREGS 0
+%define NOISE_TABLE sbr_noise_table
+%endif
+
+%macro LOAD_NST  1
+%ifdef PIC
+    lea  NOISE_TABLE, [%1]
+    mova          m0, [kxq + NOISE_TABLE]
+%else
+    mova          m0, [kxq + %1]
+%endif
+%endmacro
+
+INIT_XMM sse2
+; sbr_hf_apply_noise_0(float (*Y)[2], const float *s_m,
+;                      const float *q_filt, int noise,
+;                      int kx, int m_max)
+cglobal sbr_hf_apply_noise_0, 5,5+NREGS+UNIX64,8, Y,s_m,q_filt,noise,kx,m_max
+    mova       m0, [ps_noise0]
+    jmp apply_noise_main
+
+; sbr_hf_apply_noise_1(float (*Y)[2], const float *s_m,
+;                      const float *q_filt, int noise,
+;                      int kx, int m_max)
+cglobal sbr_hf_apply_noise_1, 5,5+NREGS+UNIX64,8, Y,s_m,q_filt,noise,kx,m_max
+    and       kxq, 1
+    shl       kxq, 4
+    LOAD_NST  ps_noise13
+    jmp apply_noise_main
+
+; sbr_hf_apply_noise_2(float (*Y)[2], const float *s_m,
+;                      const float *q_filt, int noise,
+;                      int kx, int m_max)
+cglobal sbr_hf_apply_noise_2, 5,5+NREGS+UNIX64,8, Y,s_m,q_filt,noise,kx,m_max
+    mova       m0, [ps_noise2]
+    jmp apply_noise_main
+
+; sbr_hf_apply_noise_3(float (*Y)[2], const float *s_m,
+;                      const float *q_filt, int noise,
+;                      int kx, int m_max)
+cglobal sbr_hf_apply_noise_3, 5,5+NREGS+UNIX64,8, Y,s_m,q_filt,noise,kx,m_max
+    and       kxq, 1
+    shl       kxq, 4
+    LOAD_NST  ps_noise13+16
+
+apply_noise_main:
+%if ARCH_X86_64 == 0 || WIN64
+    mov       kxd, m_maxm
+    DEFINE_ARGS Y, s_m, q_filt, noise, count
+%else
+    DEFINE_ARGS Y, s_m, q_filt, noise, kx, count
+%endif
+    movsxdifnidn    noiseq, noised
+    dec    noiseq
+    shl    countd, 2
+%ifdef PIC
+    lea NOISE_TABLE, [sbr_noise_table]
+%endif
+    lea        Yq, [Yq + 2*countq]
+    add      s_mq, countq
+    add   q_filtq, countq
+    shl    noiseq, 3
+    pxor       m5, m5
+    neg    countq
+.loop:
+    mova       m1, [q_filtq + countq]
+    movu       m3, [noiseq + NOISE_TABLE + 1*mmsize]
+    movu       m4, [noiseq + NOISE_TABLE + 2*mmsize]
+    add    noiseq, 2*mmsize
+    and    noiseq, 0x1ff<<3
+    punpckhdq  m2, m1, m1
+    punpckldq  m1, m1
+    mulps      m1, m3 ; m2 = q_filt[m] * ff_sbr_noise_table[noise]
+    mulps      m2, m4 ; m2 = q_filt[m] * ff_sbr_noise_table[noise]
+    mova       m3, [s_mq + countq]
+    ; TODO: replace by a vpermd in AVX2
+    punpckhdq  m4, m3, m3
+    punpckldq  m3, m3
+    pcmpeqd    m6, m3, m5 ; m6 == 0
+    pcmpeqd    m7, m4, m5 ; m7 == 0
+    mulps      m3, m0 ; s_m[m] * phi_sign
+    mulps      m4, m0 ; s_m[m] * phi_sign
+    pand       m1, m6
+    pand       m2, m7
+    movu       m6, [Yq + 2*countq]
+    movu       m7, [Yq + 2*countq + mmsize]
+    addps      m3, m1
+    addps      m4, m2
+    addps      m6, m3
+    addps      m7, m4
+    movu    [Yq + 2*countq], m6
+    movu    [Yq + 2*countq + mmsize], m7
+    add    countq, mmsize
+    jl      .loop
+    RET
+
+INIT_XMM sse
+cglobal sbr_qmf_deint_neg, 2,4,4,v,src,vrev,c
+%define COUNT  32*4
+%define OFFSET 32*4
+    mov        cq, -COUNT
+    lea     vrevq, [vq + OFFSET + COUNT]
+    add        vq, OFFSET-mmsize
+    add      srcq, 2*COUNT
+    mova       m3, [ps_neg]
+.loop:
+    mova       m0, [srcq + 2*cq + 0*mmsize]
+    mova       m1, [srcq + 2*cq + 1*mmsize]
+    shufps     m2, m0, m1, q2020
+    shufps     m1, m0, q1313
+    xorps      m2, m3
+    mova     [vq], m1
+    mova  [vrevq + cq], m2
+    sub        vq, mmsize
+    add        cq, mmsize
+    jl      .loop
+    REP_RET
+
+%macro SBR_AUTOCORRELATE 0
+cglobal sbr_autocorrelate, 2,3,8,32, x, phi, cnt
+    mov   cntq, 37*8
+    add     xq, cntq
+    neg   cntq
+
+%if cpuflag(sse3)
+%define   MOVH  movsd
+    movddup m5, [xq+cntq]
+%else
+%define   MOVH  movlps
+    movlps  m5, [xq+cntq]
+    movlhps m5, m5
+%endif
+    MOVH    m7, [xq+cntq+8 ]
+    MOVH    m1, [xq+cntq+16]
+    shufps  m7, m7, q0110
+    shufps  m1, m1, q0110
+    mulps   m3, m5, m7   ;              x[0][0] * x[1][0], x[0][1] * x[1][1], x[0][0] * x[1][1], x[0][1] * x[1][0]
+    mulps   m4, m5, m5   ;              x[0][0] * x[0][0], x[0][1] * x[0][1];
+    mulps   m5, m1       ; real_sum2  = x[0][0] * x[2][0], x[0][1] * x[2][1]; imag_sum2 = x[0][0] * x[2][1], x[0][1] * x[2][0]
+    movaps  [rsp   ], m3
+    movaps  [rsp+16], m4
+    add   cntq, 8
+
+    MOVH    m2, [xq+cntq+16]
+    movlhps m7, m7
+    shufps  m2, m2, q0110
+    mulps   m6, m7, m1   ; real_sum1  = x[1][0] * x[2][0], x[1][1] * x[2][1]; imag_sum1 += x[1][0] * x[2][1], x[1][1] * x[2][0]
+    mulps   m4, m7, m2
+    mulps   m7, m7       ; real_sum0  = x[1][0] * x[1][0], x[1][1] * x[1][1];
+    addps   m5, m4       ; real_sum2 += x[1][0] * x[3][0], x[1][1] * x[3][1]; imag_sum2 += x[1][0] * x[3][1], x[1][1] * x[3][0]
+
+align 16
+.loop:
+    add   cntq, 8
+    MOVH    m0, [xq+cntq+16]
+    movlhps m1, m1
+    shufps  m0, m0, q0110
+    mulps   m3, m1, m2
+    mulps   m4, m1, m0
+    mulps   m1, m1
+    addps   m6, m3       ; real_sum1 += x[i][0] * x[i + 1][0], x[i][1] * x[i + 1][1]; imag_sum1 += x[i][0] * x[i + 1][1], x[i][1] * x[i + 1][0];
+    addps   m5, m4       ; real_sum2 += x[i][0] * x[i + 2][0], x[i][1] * x[i + 2][1]; imag_sum2 += x[i][0] * x[i + 2][1], x[i][1] * x[i + 2][0];
+    addps   m7, m1       ; real_sum0 += x[i][0] * x[i][0],     x[i][1] * x[i][1];
+    add   cntq, 8
+    MOVH    m1, [xq+cntq+16]
+    movlhps m2, m2
+    shufps  m1, m1, q0110
+    mulps   m3, m2, m0
+    mulps   m4, m2, m1
+    mulps   m2, m2
+    addps   m6, m3       ; real_sum1 += x[i][0] * x[i + 1][0], x[i][1] * x[i + 1][1]; imag_sum1 += x[i][0] * x[i + 1][1], x[i][1] * x[i + 1][0];
+    addps   m5, m4       ; real_sum2 += x[i][0] * x[i + 2][0], x[i][1] * x[i + 2][1]; imag_sum2 += x[i][0] * x[i + 2][1], x[i][1] * x[i + 2][0];
+    addps   m7, m2       ; real_sum0 += x[i][0] * x[i][0],     x[i][1] * x[i][1];
+    add   cntq, 8
+    MOVH    m2, [xq+cntq+16]
+    movlhps m0, m0
+    shufps  m2, m2, q0110
+    mulps   m3, m0, m1
+    mulps   m4, m0, m2
+    mulps   m0, m0
+    addps   m6, m3       ; real_sum1 += x[i][0] * x[i + 1][0], x[i][1] * x[i + 1][1]; imag_sum1 += x[i][0] * x[i + 1][1], x[i][1] * x[i + 1][0];
+    addps   m5, m4       ; real_sum2 += x[i][0] * x[i + 2][0], x[i][1] * x[i + 2][1]; imag_sum2 += x[i][0] * x[i + 2][1], x[i][1] * x[i + 2][0];
+    addps   m7, m0       ; real_sum0 += x[i][0] * x[i][0],     x[i][1] * x[i][1];
+    jl .loop
+
+    movlhps m1, m1
+    mulps   m2, m1
+    mulps   m1, m1
+    addps   m2, m6       ; real_sum1 + x[38][0] * x[39][0], x[38][1] * x[39][1]; imag_sum1 + x[38][0] * x[39][1], x[38][1] * x[39][0];
+    addps   m1, m7       ; real_sum0 + x[38][0] * x[38][0], x[38][1] * x[38][1];
+    addps   m6, [rsp   ] ; real_sum1 + x[ 0][0] * x[ 1][0], x[ 0][1] * x[ 1][1]; imag_sum1 + x[ 0][0] * x[ 1][1], x[ 0][1] * x[ 1][0];
+    addps   m7, [rsp+16] ; real_sum0 + x[ 0][0] * x[ 0][0], x[ 0][1] * x[ 0][1];
+
+    xorps   m2, [ps_mask3]
+    xorps   m5, [ps_mask3]
+    xorps   m6, [ps_mask3]
+    HADDPS  m2, m5, m3
+    HADDPS  m7, m6, m4
+%if cpuflag(sse3)
+    movshdup m0, m1
+%else
+    movss   m0, m1
+    shufps  m1, m1, q0001
+%endif
+    addss   m1, m0
+    movaps  [phiq     ], m2
+    movhps  [phiq+0x18], m7
+    movss   [phiq+0x28], m7
+    movss   [phiq+0x10], m1
+    RET
+%endmacro
+
+INIT_XMM sse
+SBR_AUTOCORRELATE
+INIT_XMM sse3
+SBR_AUTOCORRELATE
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp.c
new file mode 100644
index 000000000..a93b5f9c1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp.c
@@ -0,0 +1,225 @@
+/*
+ * AAC Spectral Band Replication decoding functions
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ * Copyright (c) 2009-2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 0
+
+#include "aac.h"
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/intfloat.h"
+#include "sbrdsp.h"
+
+static float sbr_sum_square_c(float (*x)[2], int n)
+{
+    float sum0 = 0.0f, sum1 = 0.0f;
+    int i;
+
+    for (i = 0; i < n; i += 2)
+    {
+        sum0 += x[i + 0][0] * x[i + 0][0];
+        sum1 += x[i + 0][1] * x[i + 0][1];
+        sum0 += x[i + 1][0] * x[i + 1][0];
+        sum1 += x[i + 1][1] * x[i + 1][1];
+    }
+
+    return sum0 + sum1;
+}
+
+static void sbr_neg_odd_64_c(float *x)
+{
+    union av_intfloat32 *xi = (union av_intfloat32*) x;
+    int i;
+    for (i = 1; i < 64; i += 4) {
+        xi[i + 0].i ^= 1U << 31;
+        xi[i + 2].i ^= 1U << 31;
+    }
+}
+
+static void sbr_qmf_pre_shuffle_c(float *z)
+{
+    union av_intfloat32 *zi = (union av_intfloat32*) z;
+    int k;
+    zi[64].i = zi[0].i;
+    zi[65].i = zi[1].i;
+    for (k = 1; k < 31; k += 2) {
+        zi[64 + 2 * k + 0].i = zi[64 - k].i ^ (1U << 31);
+        zi[64 + 2 * k + 1].i = zi[ k + 1].i;
+        zi[64 + 2 * k + 2].i = zi[63 - k].i ^ (1U << 31);
+        zi[64 + 2 * k + 3].i = zi[ k + 2].i;
+    }
+
+    zi[64 + 2 * 31 + 0].i = zi[64 - 31].i ^ (1U << 31);
+    zi[64 + 2 * 31 + 1].i = zi[31 +  1].i;
+}
+
+static void sbr_qmf_post_shuffle_c(float W[32][2], const float *z)
+{
+    const union av_intfloat32 *zi = (const union av_intfloat32*) z;
+    union av_intfloat32 *Wi       = (union av_intfloat32*) W;
+    int k;
+    for (k = 0; k < 32; k += 2) {
+        Wi[2 * k + 0].i = zi[63 - k].i ^ (1U << 31);
+        Wi[2 * k + 1].i = zi[ k + 0].i;
+        Wi[2 * k + 2].i = zi[62 - k].i ^ (1U << 31);
+        Wi[2 * k + 3].i = zi[ k + 1].i;
+    }
+}
+
+static void sbr_qmf_deint_neg_c(float *v, const float *src)
+{
+    const union av_intfloat32 *si = (const union av_intfloat32*)src;
+    union av_intfloat32 *vi = (union av_intfloat32*)v;
+    int i;
+    for (i = 0; i < 32; i++) {
+        vi[     i].i = si[63 - 2 * i    ].i;
+        vi[63 - i].i = si[63 - 2 * i - 1].i ^ (1U << 31);
+    }
+}
+
+#if 0
+    /* This code is slower because it multiplies memory accesses.
+     * It is left for educational purposes and because it may offer
+     * a better reference for writing arch-specific DSP functions. */
+static av_always_inline void autocorrelate(const float x[40][2],
+                                           float phi[3][2][2], int lag)
+{
+    int i;
+    float real_sum = 0.0f;
+    float imag_sum = 0.0f;
+    if (lag) {
+        for (i = 1; i < 38; i++) {
+            real_sum += x[i][0] * x[i+lag][0] + x[i][1] * x[i+lag][1];
+            imag_sum += x[i][0] * x[i+lag][1] - x[i][1] * x[i+lag][0];
+        }
+        phi[2-lag][1][0] = real_sum + x[ 0][0] * x[lag][0] + x[ 0][1] * x[lag][1];
+        phi[2-lag][1][1] = imag_sum + x[ 0][0] * x[lag][1] - x[ 0][1] * x[lag][0];
+        if (lag == 1) {
+            phi[0][0][0] = real_sum + x[38][0] * x[39][0] + x[38][1] * x[39][1];
+            phi[0][0][1] = imag_sum + x[38][0] * x[39][1] - x[38][1] * x[39][0];
+        }
+    } else {
+        for (i = 1; i < 38; i++) {
+            real_sum += x[i][0] * x[i][0] + x[i][1] * x[i][1];
+        }
+        phi[2][1][0] = real_sum + x[ 0][0] * x[ 0][0] + x[ 0][1] * x[ 0][1];
+        phi[1][0][0] = real_sum + x[38][0] * x[38][0] + x[38][1] * x[38][1];
+    }
+}
+
+static void sbr_autocorrelate_c(const float x[40][2], float phi[3][2][2])
+{
+    autocorrelate(x, phi, 0);
+    autocorrelate(x, phi, 1);
+    autocorrelate(x, phi, 2);
+}
+#else
+static void sbr_autocorrelate_c(const float x[40][2], float phi[3][2][2])
+{
+    float real_sum2 = x[0][0] * x[2][0] + x[0][1] * x[2][1];
+    float imag_sum2 = x[0][0] * x[2][1] - x[0][1] * x[2][0];
+    float real_sum1 = 0.0f, imag_sum1 = 0.0f, real_sum0 = 0.0f;
+    int   i;
+    for (i = 1; i < 38; i++) {
+        real_sum0 += x[i][0] * x[i    ][0] + x[i][1] * x[i    ][1];
+        real_sum1 += x[i][0] * x[i + 1][0] + x[i][1] * x[i + 1][1];
+        imag_sum1 += x[i][0] * x[i + 1][1] - x[i][1] * x[i + 1][0];
+        real_sum2 += x[i][0] * x[i + 2][0] + x[i][1] * x[i + 2][1];
+        imag_sum2 += x[i][0] * x[i + 2][1] - x[i][1] * x[i + 2][0];
+    }
+    phi[2 - 2][1][0] = real_sum2;
+    phi[2 - 2][1][1] = imag_sum2;
+    phi[2    ][1][0] = real_sum0 + x[ 0][0] * x[ 0][0] + x[ 0][1] * x[ 0][1];
+    phi[1    ][0][0] = real_sum0 + x[38][0] * x[38][0] + x[38][1] * x[38][1];
+    phi[2 - 1][1][0] = real_sum1 + x[ 0][0] * x[ 1][0] + x[ 0][1] * x[ 1][1];
+    phi[2 - 1][1][1] = imag_sum1 + x[ 0][0] * x[ 1][1] - x[ 0][1] * x[ 1][0];
+    phi[0    ][0][0] = real_sum1 + x[38][0] * x[39][0] + x[38][1] * x[39][1];
+    phi[0    ][0][1] = imag_sum1 + x[38][0] * x[39][1] - x[38][1] * x[39][0];
+}
+#endif
+
+static void sbr_hf_gen_c(float (*X_high)[2], const float (*X_low)[2],
+                         const float alpha0[2], const float alpha1[2],
+                         float bw, int start, int end)
+{
+    float alpha[4];
+    int i;
+
+    alpha[0] = alpha1[0] * bw * bw;
+    alpha[1] = alpha1[1] * bw * bw;
+    alpha[2] = alpha0[0] * bw;
+    alpha[3] = alpha0[1] * bw;
+
+    for (i = start; i < end; i++) {
+        X_high[i][0] =
+            X_low[i - 2][0] * alpha[0] -
+            X_low[i - 2][1] * alpha[1] +
+            X_low[i - 1][0] * alpha[2] -
+            X_low[i - 1][1] * alpha[3] +
+            X_low[i][0];
+        X_high[i][1] =
+            X_low[i - 2][1] * alpha[0] +
+            X_low[i - 2][0] * alpha[1] +
+            X_low[i - 1][1] * alpha[2] +
+            X_low[i - 1][0] * alpha[3] +
+            X_low[i][1];
+    }
+}
+
+static void sbr_hf_g_filt_c(float (*Y)[2], const float (*X_high)[40][2],
+                            const float *g_filt, int m_max, intptr_t ixh)
+{
+    int m;
+
+    for (m = 0; m < m_max; m++) {
+        Y[m][0] = X_high[m][ixh][0] * g_filt[m];
+        Y[m][1] = X_high[m][ixh][1] * g_filt[m];
+    }
+}
+
+static av_always_inline void sbr_hf_apply_noise(float (*Y)[2],
+                                                const float *s_m,
+                                                const float *q_filt,
+                                                int noise,
+                                                float phi_sign0,
+                                                float phi_sign1,
+                                                int m_max)
+{
+    int m;
+
+    for (m = 0; m < m_max; m++) {
+        float y0 = Y[m][0];
+        float y1 = Y[m][1];
+        noise = (noise + 1) & 0x1ff;
+        if (s_m[m]) {
+            y0 += s_m[m] * phi_sign0;
+            y1 += s_m[m] * phi_sign1;
+        } else {
+            y0 += q_filt[m] * ff_sbr_noise_table[noise][0];
+            y1 += q_filt[m] * ff_sbr_noise_table[noise][1];
+        }
+        Y[m][0] = y0;
+        Y[m][1] = y1;
+        phi_sign1 = -phi_sign1;
+    }
+}
+
+#include "sbrdsp_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp.h
new file mode 100644
index 000000000..e6fd76d8e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2012 Mans Rullgard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_SBRDSP_H
+#define AVCODEC_SBRDSP_H
+
+#include <stdint.h>
+#include "aac_defines.h"
+#include "libavutil/softfloat.h"
+
+typedef struct SBRDSPContext {
+    void (*sum64x5)(INTFLOAT *z);
+    AAC_FLOAT (*sum_square)(INTFLOAT (*x)[2], int n);
+    void (*neg_odd_64)(INTFLOAT *x);
+    void (*qmf_pre_shuffle)(INTFLOAT *z);
+    void (*qmf_post_shuffle)(INTFLOAT W[32][2], const INTFLOAT *z);
+    void (*qmf_deint_neg)(INTFLOAT *v, const INTFLOAT *src);
+    void (*qmf_deint_bfly)(INTFLOAT *v, const INTFLOAT *src0, const INTFLOAT *src1);
+    void (*autocorrelate)(const INTFLOAT x[40][2], AAC_FLOAT phi[3][2][2]);
+    void (*hf_gen)(INTFLOAT (*X_high)[2], const INTFLOAT (*X_low)[2],
+                   const INTFLOAT alpha0[2], const INTFLOAT alpha1[2],
+                   INTFLOAT bw, int start, int end);
+    void (*hf_g_filt)(INTFLOAT (*Y)[2], const INTFLOAT (*X_high)[40][2],
+                      const AAC_FLOAT *g_filt, int m_max, intptr_t ixh);
+    void (*hf_apply_noise[4])(INTFLOAT (*Y)[2], const AAC_FLOAT *s_m,
+                              const AAC_FLOAT *q_filt, int noise,
+                              int kx, int m_max);
+} SBRDSPContext;
+
+extern const INTFLOAT AAC_RENAME(ff_sbr_noise_table)[][2];
+
+void AAC_RENAME(ff_sbrdsp_init)(SBRDSPContext *s);
+void ff_sbrdsp_init_arm(SBRDSPContext *s);
+void ff_sbrdsp_init_aarch64(SBRDSPContext *s);
+void ff_sbrdsp_init_x86(SBRDSPContext *s);
+void ff_sbrdsp_init_mips(SBRDSPContext *s);
+
+#endif /* AVCODEC_SBRDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp_fixed.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp_fixed.c
new file mode 100644
index 000000000..91fa664c0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp_fixed.c
@@ -0,0 +1,315 @@
+/*
+ * AAC Spectral Band Replication decoding functions
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ * Copyright (c) 2009-2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Note: Rounding-to-nearest used unless otherwise stated
+ *
+ */
+
+#define USE_FIXED 1
+
+#include "aac.h"
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/intfloat.h"
+#include "sbrdsp.h"
+
+static SoftFloat sbr_sum_square_c(int (*x)[2], int n)
+{
+    SoftFloat ret;
+    uint64_t accu = 0, round;
+    uint64_t accu0 = 0, accu1 = 0, accu2 = 0, accu3 = 0;
+    int i, nz, nz0;
+    unsigned u;
+
+    nz = 0;
+    for (i = 0; i < n; i += 2) {
+        accu0 += (int64_t)x[i + 0][0] * x[i + 0][0];
+        accu1 += (int64_t)x[i + 0][1] * x[i + 0][1];
+        accu2 += (int64_t)x[i + 1][0] * x[i + 1][0];
+        accu3 += (int64_t)x[i + 1][1] * x[i + 1][1];
+        if ((accu0|accu1|accu2|accu3) > UINT64_MAX - INT32_MIN*(int64_t)INT32_MIN || i+2>=n) {
+            accu0 >>= nz;
+            accu1 >>= nz;
+            accu2 >>= nz;
+            accu3 >>= nz;
+            while ((accu0|accu1|accu2|accu3) > (UINT64_MAX - accu) >> 2) {
+                accu0 >>= 1;
+                accu1 >>= 1;
+                accu2 >>= 1;
+                accu3 >>= 1;
+                accu  >>= 1;
+                nz ++;
+            }
+            accu += accu0 + accu1 + accu2 + accu3;
+            accu0 = accu1 = accu2 = accu3 = 0;
+        }
+    }
+
+    nz0 = 15 - nz;
+
+    u = accu >> 32;
+    if (u) {
+        nz = 33;
+        while (u < 0x80000000U) {
+            u <<= 1;
+            nz--;
+        }
+    } else
+        nz = 1;
+
+    round = 1ULL << (nz-1);
+    u = ((accu + round) >> nz);
+    u >>= 1;
+    ret = av_int2sf(u, nz0 - nz);
+
+    return ret;
+}
+
+static void sbr_neg_odd_64_c(int *x)
+{
+    int i;
+    for (i = 1; i < 64; i += 2)
+        x[i] = -x[i];
+}
+
+static void sbr_qmf_pre_shuffle_c(int *z)
+{
+    int k;
+    z[64] = z[0];
+    z[65] = z[1];
+    for (k = 1; k < 32; k++) {
+        z[64+2*k  ] = -z[64 - k];
+        z[64+2*k+1] =  z[ k + 1];
+    }
+}
+
+static void sbr_qmf_post_shuffle_c(int W[32][2], const int *z)
+{
+    int k;
+    for (k = 0; k < 32; k++) {
+        W[k][0] = -z[63-k];
+        W[k][1] = z[k];
+    }
+}
+
+static void sbr_qmf_deint_neg_c(int *v, const int *src)
+{
+    int i;
+    for (i = 0; i < 32; i++) {
+        v[     i] = ( src[63 - 2*i    ] + 0x10) >> 5;
+        v[63 - i] = (-src[63 - 2*i - 1] + 0x10) >> 5;
+    }
+}
+
+static av_always_inline SoftFloat autocorr_calc(int64_t accu)
+{
+        int nz, mant, expo;
+        unsigned round;
+        int i = (int)(accu >> 32);
+        if (i == 0) {
+            nz = 1;
+        } else {
+            nz = 0;
+            while (FFABS(i) < 0x40000000) {
+                i *= 2;
+                nz++;
+            }
+            nz = 32-nz;
+        }
+
+        round = 1U << (nz-1);
+        mant = (int)((accu + round) >> nz);
+        mant = (mant + 0x40LL)>>7;
+        mant *= 64;
+        expo = nz + 15;
+        return av_int2sf(mant, 30 - expo);
+}
+
+static av_always_inline void autocorrelate(const int x[40][2], SoftFloat phi[3][2][2], int lag)
+{
+    int i;
+    int64_t real_sum, imag_sum;
+    int64_t accu_re = 0, accu_im = 0;
+
+    if (lag) {
+        for (i = 1; i < 38; i++) {
+            accu_re += (uint64_t)x[i][0] * x[i+lag][0];
+            accu_re += (uint64_t)x[i][1] * x[i+lag][1];
+            accu_im += (uint64_t)x[i][0] * x[i+lag][1];
+            accu_im -= (uint64_t)x[i][1] * x[i+lag][0];
+        }
+
+        real_sum = accu_re;
+        imag_sum = accu_im;
+
+        accu_re += (uint64_t)x[ 0][0] * x[lag][0];
+        accu_re += (uint64_t)x[ 0][1] * x[lag][1];
+        accu_im += (uint64_t)x[ 0][0] * x[lag][1];
+        accu_im -= (uint64_t)x[ 0][1] * x[lag][0];
+
+        phi[2-lag][1][0] = autocorr_calc(accu_re);
+        phi[2-lag][1][1] = autocorr_calc(accu_im);
+
+        if (lag == 1) {
+            accu_re = real_sum;
+            accu_im = imag_sum;
+            accu_re += (uint64_t)x[38][0] * x[39][0];
+            accu_re += (uint64_t)x[38][1] * x[39][1];
+            accu_im += (uint64_t)x[38][0] * x[39][1];
+            accu_im -= (uint64_t)x[38][1] * x[39][0];
+
+            phi[0][0][0] = autocorr_calc(accu_re);
+            phi[0][0][1] = autocorr_calc(accu_im);
+        }
+    } else {
+        for (i = 1; i < 38; i++) {
+            accu_re += (uint64_t)x[i][0] * x[i][0];
+            accu_re += (uint64_t)x[i][1] * x[i][1];
+        }
+        real_sum = accu_re;
+        accu_re += (uint64_t)x[ 0][0] * x[ 0][0];
+        accu_re += (uint64_t)x[ 0][1] * x[ 0][1];
+
+        phi[2][1][0] = autocorr_calc(accu_re);
+
+        accu_re = real_sum;
+        accu_re += (uint64_t)x[38][0] * x[38][0];
+        accu_re += (uint64_t)x[38][1] * x[38][1];
+
+        phi[1][0][0] = autocorr_calc(accu_re);
+    }
+}
+
+static void sbr_autocorrelate_c(const int x[40][2], SoftFloat phi[3][2][2])
+{
+    autocorrelate(x, phi, 0);
+    autocorrelate(x, phi, 1);
+    autocorrelate(x, phi, 2);
+}
+
+static void sbr_hf_gen_c(int (*X_high)[2], const int (*X_low)[2],
+                       const int alpha0[2], const int alpha1[2],
+                       int bw, int start, int end)
+{
+    int alpha[4];
+    int i;
+    int64_t accu;
+
+    accu = (int64_t)alpha0[0] * bw;
+    alpha[2] = (int)((accu + 0x40000000) >> 31);
+    accu = (int64_t)alpha0[1] * bw;
+    alpha[3] = (int)((accu + 0x40000000) >> 31);
+    accu = (int64_t)bw * bw;
+    bw = (int)((accu + 0x40000000) >> 31);
+    accu = (int64_t)alpha1[0] * bw;
+    alpha[0] = (int)((accu + 0x40000000) >> 31);
+    accu = (int64_t)alpha1[1] * bw;
+    alpha[1] = (int)((accu + 0x40000000) >> 31);
+
+    for (i = start; i < end; i++) {
+        accu  = (int64_t)X_low[i][0] * 0x20000000;
+        accu += (int64_t)X_low[i - 2][0] * alpha[0];
+        accu -= (int64_t)X_low[i - 2][1] * alpha[1];
+        accu += (int64_t)X_low[i - 1][0] * alpha[2];
+        accu -= (int64_t)X_low[i - 1][1] * alpha[3];
+        X_high[i][0] = (int)((accu + 0x10000000) >> 29);
+
+        accu  = (int64_t)X_low[i][1] * 0x20000000;
+        accu += (int64_t)X_low[i - 2][1] * alpha[0];
+        accu += (int64_t)X_low[i - 2][0] * alpha[1];
+        accu += (int64_t)X_low[i - 1][1] * alpha[2];
+        accu += (int64_t)X_low[i - 1][0] * alpha[3];
+        X_high[i][1] = (int)((accu + 0x10000000) >> 29);
+    }
+}
+
+static void sbr_hf_g_filt_c(int (*Y)[2], const int (*X_high)[40][2],
+                          const SoftFloat *g_filt, int m_max, intptr_t ixh)
+{
+    int m;
+    int64_t accu;
+
+    for (m = 0; m < m_max; m++) {
+        if (22 - g_filt[m].exp < 61) {
+            int64_t r = 1LL << (22-g_filt[m].exp);
+            accu = (int64_t)X_high[m][ixh][0] * ((g_filt[m].mant + 0x40)>>7);
+            Y[m][0] = (int)((accu + r) >> (23-g_filt[m].exp));
+
+            accu = (int64_t)X_high[m][ixh][1] * ((g_filt[m].mant + 0x40)>>7);
+            Y[m][1] = (int)((accu + r) >> (23-g_filt[m].exp));
+        }
+    }
+}
+
+static av_always_inline int sbr_hf_apply_noise(int (*Y)[2],
+                                                const SoftFloat *s_m,
+                                                const SoftFloat *q_filt,
+                                                int noise,
+                                                int phi_sign0,
+                                                int phi_sign1,
+                                                int m_max)
+{
+    int m;
+
+    for (m = 0; m < m_max; m++) {
+        unsigned y0 = Y[m][0];
+        unsigned y1 = Y[m][1];
+        noise = (noise + 1) & 0x1ff;
+        if (s_m[m].mant) {
+            int shift, round;
+
+            shift = 22 - s_m[m].exp;
+            if (shift < 1) {
+                av_log(NULL, AV_LOG_ERROR, "Overflow in sbr_hf_apply_noise, shift=%d\n", shift);
+                return AVERROR(ERANGE);
+            } else if (shift < 30) {
+                round = 1 << (shift-1);
+                y0 += (s_m[m].mant * phi_sign0 + round) >> shift;
+                y1 += (s_m[m].mant * phi_sign1 + round) >> shift;
+            }
+        } else {
+            int shift, round, tmp;
+            int64_t accu;
+
+            shift = 22 - q_filt[m].exp;
+            if (shift < 1) {
+                av_log(NULL, AV_LOG_ERROR, "Overflow in sbr_hf_apply_noise, shift=%d\n", shift);
+                return AVERROR(ERANGE);
+            } else if (shift < 30) {
+                round = 1 << (shift-1);
+
+                accu = (int64_t)q_filt[m].mant * ff_sbr_noise_table_fixed[noise][0];
+                tmp = (int)((accu + 0x40000000) >> 31);
+                y0 += (tmp + round) >> shift;
+
+                accu = (int64_t)q_filt[m].mant * ff_sbr_noise_table_fixed[noise][1];
+                tmp = (int)((accu + 0x40000000) >> 31);
+                y1 += (tmp + round) >> shift;
+            }
+        }
+        Y[m][0] = y0;
+        Y[m][1] = y1;
+        phi_sign1 = -phi_sign1;
+    }
+    return 0;
+}
+
+#include "sbrdsp_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp_init.c
new file mode 100644
index 000000000..6911a1a51
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp_init.c
@@ -0,0 +1,87 @@
+/*
+ * AAC Spectral Band Replication decoding functions
+ * Copyright (c) 2012 Christophe Gisquet <christophe.gisquet@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/sbrdsp.h"
+
+float ff_sbr_sum_square_sse(float (*x)[2], int n);
+void ff_sbr_sum64x5_sse(float *z);
+void ff_sbr_hf_g_filt_sse(float (*Y)[2], const float (*X_high)[40][2],
+                          const float *g_filt, int m_max, intptr_t ixh);
+void ff_sbr_hf_gen_sse(float (*X_high)[2], const float (*X_low)[2],
+                       const float alpha0[2], const float alpha1[2],
+                       float bw, int start, int end);
+void ff_sbr_neg_odd_64_sse(float *z);
+void ff_sbr_qmf_post_shuffle_sse(float W[32][2], const float *z);
+void ff_sbr_qmf_deint_bfly_sse(float *v, const float *src0, const float *src1);
+void ff_sbr_qmf_deint_bfly_sse2(float *v, const float *src0, const float *src1);
+void ff_sbr_qmf_pre_shuffle_sse2(float *z);
+
+void ff_sbr_hf_apply_noise_0_sse2(float (*Y)[2], const float *s_m,
+                                  const float *q_filt, int noise,
+                                  int kx, int m_max);
+void ff_sbr_hf_apply_noise_1_sse2(float (*Y)[2], const float *s_m,
+                                  const float *q_filt, int noise,
+                                  int kx, int m_max);
+void ff_sbr_hf_apply_noise_2_sse2(float (*Y)[2], const float *s_m,
+                                  const float *q_filt, int noise,
+                                  int kx, int m_max);
+void ff_sbr_hf_apply_noise_3_sse2(float (*Y)[2], const float *s_m,
+                                  const float *q_filt, int noise,
+                                  int kx, int m_max);
+
+void ff_sbr_qmf_deint_neg_sse(float *v, const float *src);
+
+void ff_sbr_autocorrelate_sse (const float x[40][2], float phi[3][2][2]);
+void ff_sbr_autocorrelate_sse3(const float x[40][2], float phi[3][2][2]);
+
+av_cold void ff_sbrdsp_init_x86(SBRDSPContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        s->neg_odd_64 = ff_sbr_neg_odd_64_sse;
+        s->sum_square = ff_sbr_sum_square_sse;
+        s->sum64x5    = ff_sbr_sum64x5_sse;
+        s->hf_g_filt  = ff_sbr_hf_g_filt_sse;
+        s->hf_gen     = ff_sbr_hf_gen_sse;
+        s->qmf_post_shuffle = ff_sbr_qmf_post_shuffle_sse;
+        s->qmf_deint_bfly   = ff_sbr_qmf_deint_bfly_sse;
+        s->qmf_deint_neg    = ff_sbr_qmf_deint_neg_sse;
+        s->autocorrelate    = ff_sbr_autocorrelate_sse;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        s->qmf_deint_bfly   = ff_sbr_qmf_deint_bfly_sse2;
+        s->qmf_pre_shuffle  = ff_sbr_qmf_pre_shuffle_sse2;
+        s->hf_apply_noise[0] = ff_sbr_hf_apply_noise_0_sse2;
+        s->hf_apply_noise[1] = ff_sbr_hf_apply_noise_1_sse2;
+        s->hf_apply_noise[2] = ff_sbr_hf_apply_noise_2_sse2;
+        s->hf_apply_noise[3] = ff_sbr_hf_apply_noise_3_sse2;
+    }
+
+    if (EXTERNAL_SSE3(cpu_flags)) {
+        s->autocorrelate = ff_sbr_autocorrelate_sse3;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp_template.c
new file mode 100644
index 000000000..37a3365b9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sbrdsp_template.c
@@ -0,0 +1,104 @@
+/*
+ * AAC Spectral Band Replication decoding functions
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ * Copyright (c) 2009-2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+static void sbr_sum64x5_c(INTFLOAT *z)
+{
+    int k;
+    for (k = 0; k < 64; k++) {
+        INTFLOAT f = z[k] + z[k + 64] + z[k + 128] + z[k + 192] + z[k + 256];
+        z[k] = f;
+    }
+}
+
+static void sbr_qmf_deint_bfly_c(INTFLOAT *v, const INTFLOAT *src0, const INTFLOAT *src1)
+{
+    int i;
+    for (i = 0; i < 64; i++) {
+#if USE_FIXED
+        v[      i] = (int)(0x10U + src0[i] - src1[63 - i]) >> 5;
+        v[127 - i] = (int)(0x10U + src0[i] + src1[63 - i]) >> 5;
+#else
+        v[      i] = src0[i] - src1[63 - i];
+        v[127 - i] = src0[i] + src1[63 - i];
+#endif
+    }
+}
+
+static void sbr_hf_apply_noise_0(INTFLOAT (*Y)[2], const AAC_FLOAT *s_m,
+                                 const AAC_FLOAT *q_filt, int noise,
+                                 int kx, int m_max)
+{
+    sbr_hf_apply_noise(Y, s_m, q_filt, noise, (INTFLOAT)1.0, (INTFLOAT)0.0, m_max);
+}
+
+static void sbr_hf_apply_noise_1(INTFLOAT (*Y)[2], const AAC_FLOAT *s_m,
+                                 const AAC_FLOAT *q_filt, int noise,
+                                 int kx, int m_max)
+{
+    INTFLOAT phi_sign = 1 - 2 * (kx & 1);
+    sbr_hf_apply_noise(Y, s_m, q_filt, noise, (INTFLOAT)0.0, phi_sign, m_max);
+}
+
+static void sbr_hf_apply_noise_2(INTFLOAT (*Y)[2], const AAC_FLOAT *s_m,
+                                 const AAC_FLOAT *q_filt, int noise,
+                                 int kx, int m_max)
+{
+    sbr_hf_apply_noise(Y, s_m, q_filt, noise, (INTFLOAT)-1.0, (INTFLOAT)0.0, m_max);
+}
+
+static void sbr_hf_apply_noise_3(INTFLOAT (*Y)[2], const AAC_FLOAT *s_m,
+                                 const AAC_FLOAT *q_filt, int noise,
+                                 int kx, int m_max)
+{
+    INTFLOAT phi_sign = 1 - 2 * (kx & 1);
+    sbr_hf_apply_noise(Y, s_m, q_filt, noise, (INTFLOAT)0.0, -phi_sign, m_max);
+}
+
+av_cold void AAC_RENAME(ff_sbrdsp_init)(SBRDSPContext *s)
+{
+    s->sum64x5 = sbr_sum64x5_c;
+    s->sum_square = sbr_sum_square_c;
+    s->neg_odd_64 = sbr_neg_odd_64_c;
+    s->qmf_pre_shuffle = sbr_qmf_pre_shuffle_c;
+    s->qmf_post_shuffle = sbr_qmf_post_shuffle_c;
+    s->qmf_deint_neg = sbr_qmf_deint_neg_c;
+    s->qmf_deint_bfly = sbr_qmf_deint_bfly_c;
+    s->autocorrelate = sbr_autocorrelate_c;
+    s->hf_gen = sbr_hf_gen_c;
+    s->hf_g_filt = sbr_hf_g_filt_c;
+
+    s->hf_apply_noise[0] = sbr_hf_apply_noise_0;
+    s->hf_apply_noise[1] = sbr_hf_apply_noise_1;
+    s->hf_apply_noise[2] = sbr_hf_apply_noise_2;
+    s->hf_apply_noise[3] = sbr_hf_apply_noise_3;
+
+#if !USE_FIXED
+    if (ARCH_ARM)
+        ff_sbrdsp_init_arm(s);
+    if (ARCH_AARCH64)
+        ff_sbrdsp_init_aarch64(s);
+    if (ARCH_X86)
+        ff_sbrdsp_init_x86(s);
+    if (ARCH_MIPS)
+        ff_sbrdsp_init_mips(s);
+#endif /* !USE_FIXED */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin.c
new file mode 100644
index 000000000..4532dc735
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin.c
@@ -0,0 +1,21 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 0
+#include "sinewin.h"
+#include "sinewin_tablegen.h"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin.h
new file mode 100644
index 000000000..329e9bb5b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2008 Robert Swain
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_SINEWIN_H
+#define AVCODEC_SINEWIN_H
+
+#include "config.h"
+#include "libavutil/mem.h"
+#include "libavcodec/aac_defines.h"
+
+#if CONFIG_HARDCODED_TABLES
+#   define SINETABLE_CONST const
+#else
+#   define SINETABLE_CONST
+#endif
+
+#ifndef USE_FIXED
+#define USE_FIXED 0
+#endif
+
+#define SINETABLE(size) \
+    SINETABLE_CONST DECLARE_ALIGNED(32, INTFLOAT, AAC_RENAME(ff_sine_##size))[size]
+
+#define SINETABLE120960(size) \
+    DECLARE_ALIGNED(32, INTFLOAT, AAC_RENAME(ff_sine_##size))[size]
+
+/**
+ * Generate a sine window.
+ * @param   window  pointer to half window
+ * @param   n       size of half window
+ */
+void AAC_RENAME(ff_sine_window_init)(INTFLOAT *window, int n);
+
+/**
+ * initialize the specified entry of ff_sine_windows
+ */
+void AAC_RENAME(ff_init_ff_sine_windows)(int index);
+
+extern SINETABLE(  32);
+extern SINETABLE(  64);
+extern SINETABLE120960(120);
+extern SINETABLE( 128);
+extern SINETABLE( 256);
+extern SINETABLE( 512);
+extern SINETABLE120960(960);
+extern SINETABLE(1024);
+extern SINETABLE(2048);
+extern SINETABLE(4096);
+extern SINETABLE(8192);
+
+extern SINETABLE_CONST INTFLOAT * const AAC_RENAME(ff_sine_windows)[16];
+
+#endif /* AVCODEC_SINEWIN_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin_fixed.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin_fixed.c
new file mode 100644
index 000000000..27ead29e8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin_fixed.c
@@ -0,0 +1,21 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 1
+#include "sinewin.h"
+#include "sinewin_tablegen.h"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin_tablegen.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin_tablegen.c
new file mode 100644
index 000000000..dd602668e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin_tablegen.c
@@ -0,0 +1,24 @@
+/*
+ * Generate a header file for hardcoded sine windows
+ *
+ * Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 0
+#include "sinewin_tablegen_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin_tablegen.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin_tablegen.h
new file mode 100644
index 000000000..dc52234ed
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/sinewin_tablegen.h
@@ -0,0 +1,83 @@
+/*
+ * Header file for hardcoded sine windows
+ *
+ * Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_SINEWIN_TABLEGEN_H
+#define AVCODEC_SINEWIN_TABLEGEN_H
+
+#include <assert.h>
+// do not use libavutil/libm.h since this is compiled both
+// for the host and the target and config.h is only valid for the target
+#include <math.h>
+#include "libavcodec/aac_defines.h"
+#include "libavutil/attributes.h"
+#include "libavutil/common.h"
+
+#if !USE_FIXED
+SINETABLE120960(120);
+SINETABLE120960(960);
+#endif
+#if !CONFIG_HARDCODED_TABLES
+SINETABLE(  32);
+SINETABLE(  64);
+SINETABLE( 128);
+SINETABLE( 256);
+SINETABLE( 512);
+SINETABLE(1024);
+SINETABLE(2048);
+SINETABLE(4096);
+SINETABLE(8192);
+#else
+#if USE_FIXED
+#include "libavcodec/sinewin_fixed_tables.h"
+#else
+#include "libavcodec/sinewin_tables.h"
+#endif
+#endif
+
+#if USE_FIXED
+#define SIN_FIX(a) (int)floor((a) * 0x80000000 + 0.5)
+#else
+#define SIN_FIX(a) a
+#endif
+
+SINETABLE_CONST INTFLOAT * const AAC_RENAME(ff_sine_windows)[] = {
+    NULL, NULL, NULL, NULL, NULL, // unused
+    AAC_RENAME(ff_sine_32) , AAC_RENAME(ff_sine_64), AAC_RENAME(ff_sine_128),
+    AAC_RENAME(ff_sine_256), AAC_RENAME(ff_sine_512), AAC_RENAME(ff_sine_1024),
+    AAC_RENAME(ff_sine_2048), AAC_RENAME(ff_sine_4096), AAC_RENAME(ff_sine_8192),
+};
+
+// Generate a sine window.
+av_cold void AAC_RENAME(ff_sine_window_init)(INTFLOAT *window, int n) {
+    int i;
+    for(i = 0; i < n; i++)
+        window[i] = SIN_FIX(sinf((i + 0.5) * (M_PI / (2.0 * n))));
+}
+
+av_cold void AAC_RENAME(ff_init_ff_sine_windows)(int index) {
+    assert(index >= 0 && index < FF_ARRAY_ELEMS(AAC_RENAME(ff_sine_windows)));
+#if !CONFIG_HARDCODED_TABLES
+    AAC_RENAME(ff_sine_window_init)(AAC_RENAME(ff_sine_windows)[index], 1 << index);
+#endif
+}
+
+#endif /* AVCODEC_SINEWIN_TABLEGEN_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/thread.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/thread.h
new file mode 100644
index 000000000..540135fbc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/thread.h
@@ -0,0 +1,144 @@
+/*
+ * Copyright (c) 2008 Alexander Strange <astrange@ithinksw.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Multithreading support functions
+ * @author Alexander Strange <astrange@ithinksw.com>
+ */
+
+#ifndef AVCODEC_THREAD_H
+#define AVCODEC_THREAD_H
+
+#include "libavutil/buffer.h"
+
+#include "avcodec.h"
+
+typedef struct ThreadFrame {
+    AVFrame *f;
+    AVCodecContext *owner[2];
+    // progress->data is an array of 2 ints holding progress for top/bottom
+    // fields
+    AVBufferRef *progress;
+} ThreadFrame;
+
+/**
+ * Wait for decoding threads to finish and reset internal state.
+ * Called by avcodec_flush_buffers().
+ *
+ * @param avctx The context.
+ */
+void ff_thread_flush(AVCodecContext *avctx);
+
+/**
+ * Submit a new frame to a decoding thread.
+ * Returns the next available frame in picture. *got_picture_ptr
+ * will be 0 if none is available.
+ * The return value on success is the size of the consumed packet for
+ * compatibility with avcodec_decode_video2(). This means the decoder
+ * has to consume the full packet.
+ *
+ * Parameters are the same as avcodec_decode_video2().
+ */
+int ff_thread_decode_frame(AVCodecContext *avctx, AVFrame *picture,
+                           int *got_picture_ptr, AVPacket *avpkt);
+
+/**
+ * If the codec defines update_thread_context(), call this
+ * when they are ready for the next thread to start decoding
+ * the next frame. After calling it, do not change any variables
+ * read by the update_thread_context() method, or call ff_thread_get_buffer().
+ *
+ * @param avctx The context.
+ */
+void ff_thread_finish_setup(AVCodecContext *avctx);
+
+/**
+ * Notify later decoding threads when part of their reference picture is ready.
+ * Call this when some part of the picture is finished decoding.
+ * Later calls with lower values of progress have no effect.
+ *
+ * @param f The picture being decoded.
+ * @param progress Value, in arbitrary units, of how much of the picture has decoded.
+ * @param field The field being decoded, for field-picture codecs.
+ * 0 for top field or frame pictures, 1 for bottom field.
+ */
+void ff_thread_report_progress(ThreadFrame *f, int progress, int field);
+
+/**
+ * Wait for earlier decoding threads to finish reference pictures.
+ * Call this before accessing some part of a picture, with a given
+ * value for progress, and it will return after the responsible decoding
+ * thread calls ff_thread_report_progress() with the same or
+ * higher value for progress.
+ *
+ * @param f The picture being referenced.
+ * @param progress Value, in arbitrary units, to wait for.
+ * @param field The field being referenced, for field-picture codecs.
+ * 0 for top field or frame pictures, 1 for bottom field.
+ */
+void ff_thread_await_progress(ThreadFrame *f, int progress, int field);
+
+/**
+ * Wrapper around get_format() for frame-multithreaded codecs.
+ * Call this function instead of avctx->get_format().
+ * Cannot be called after the codec has called ff_thread_finish_setup().
+ *
+ * @param avctx The current context.
+ * @param fmt The list of available formats.
+ */
+enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt);
+
+/**
+ * Wrapper around get_buffer() for frame-multithreaded codecs.
+ * Call this function instead of ff_get_buffer(f).
+ * Cannot be called after the codec has called ff_thread_finish_setup().
+ *
+ * @param avctx The current context.
+ * @param f The frame to write into.
+ */
+int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags);
+
+/**
+ * Wrapper around release_buffer() frame-for multithreaded codecs.
+ * Call this function instead of avctx->release_buffer(f).
+ * The AVFrame will be copied and the actual release_buffer() call
+ * will be performed later. The contents of data pointed to by the
+ * AVFrame should not be changed until ff_thread_get_buffer() is called
+ * on it.
+ *
+ * @param avctx The current context.
+ * @param f The picture being released.
+ */
+void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f);
+
+int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src);
+
+int ff_thread_init(AVCodecContext *s);
+int ff_slice_thread_execute_with_mainfunc(AVCodecContext *avctx,
+        int (*action_func2)(AVCodecContext *c, void *arg, int jobnr, int threadnr),
+        int (*main_func)(AVCodecContext *c), void *arg, int *ret, int job_count);
+void ff_thread_free(AVCodecContext *s);
+int ff_alloc_entries(AVCodecContext *avctx, int count);
+void ff_reset_entries(AVCodecContext *avctx);
+void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n);
+void ff_thread_await_progress2(AVCodecContext *avctx,  int field, int thread, int shift);
+
+#endif /* AVCODEC_THREAD_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/utils.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/utils.c
new file mode 100644
index 000000000..a6a646636
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/utils.c
@@ -0,0 +1,2234 @@
+/*
+ * utils for libavcodec
+ * Copyright (c) 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * utils.
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
+#include "libavutil/avstring.h"
+#include "libavutil/bprint.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/crc.h"
+#include "libavutil/frame.h"
+#include "libavutil/hwcontext.h"
+#include "libavutil/internal.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/mem_internal.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/samplefmt.h"
+#include "libavutil/dict.h"
+#include "libavutil/thread.h"
+#include "avcodec.h"
+#include "decode.h"
+#include "hwaccel.h"
+#include "libavutil/opt.h"
+#include "mpegvideo.h"
+#include "thread.h"
+#include "frame_thread_encoder.h"
+#include "internal.h"
+#include "raw.h"
+#include "bytestream.h"
+#include "version.h"
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdatomic.h>
+#include <limits.h>
+#include <float.h>
+#if CONFIG_ICONV
+# include <iconv.h>
+#endif
+
+#include "libavutil/ffversion.h"
+const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
+static AVMutex codec_mutex = AV_MUTEX_INITIALIZER;
+
+void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
+{
+    uint8_t **p = ptr;
+    if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
+        av_freep(p);
+        *size = 0;
+        return;
+    }
+    if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
+        memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+}
+
+void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
+{
+    uint8_t **p = ptr;
+    if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
+        av_freep(p);
+        *size = 0;
+        return;
+    }
+    if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
+        memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
+}
+
+int av_codec_is_encoder(const AVCodec *codec)
+{
+    return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
+}
+
+int av_codec_is_decoder(const AVCodec *codec)
+{
+    return codec && (codec->decode || codec->receive_frame);
+}
+
+int ff_set_dimensions(AVCodecContext *s, int width, int height)
+{
+    int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
+
+    if (ret < 0)
+        width = height = 0;
+
+    s->coded_width  = width;
+    s->coded_height = height;
+    s->width        = AV_CEIL_RSHIFT(width,  s->lowres);
+    s->height       = AV_CEIL_RSHIFT(height, s->lowres);
+
+    return ret;
+}
+
+int ff_set_sar(AVCodecContext *avctx, AVRational sar)
+{
+    int ret = av_image_check_sar(avctx->width, avctx->height, sar);
+
+    if (ret < 0) {
+        av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
+               sar.num, sar.den);
+        avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
+        return ret;
+    } else {
+        avctx->sample_aspect_ratio = sar;
+    }
+    return 0;
+}
+
+int ff_side_data_update_matrix_encoding(AVFrame *frame,
+                                        enum AVMatrixEncoding matrix_encoding)
+{
+    AVFrameSideData *side_data;
+    enum AVMatrixEncoding *data;
+
+    side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
+    if (!side_data)
+        side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
+                                           sizeof(enum AVMatrixEncoding));
+
+    if (!side_data)
+        return AVERROR(ENOMEM);
+
+    data  = (enum AVMatrixEncoding*)side_data->data;
+    *data = matrix_encoding;
+
+    return 0;
+}
+
+void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
+                               int linesize_align[AV_NUM_DATA_POINTERS])
+{
+    int i;
+    int w_align = 1;
+    int h_align = 1;
+    AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
+
+    if (desc) {
+        w_align = 1 << desc->log2_chroma_w;
+        h_align = 1 << desc->log2_chroma_h;
+    }
+
+    switch (s->pix_fmt) {
+    case AV_PIX_FMT_YUV420P:
+    case AV_PIX_FMT_YUYV422:
+    case AV_PIX_FMT_YVYU422:
+    case AV_PIX_FMT_UYVY422:
+    case AV_PIX_FMT_YUV422P:
+    case AV_PIX_FMT_YUV440P:
+    case AV_PIX_FMT_YUV444P:
+    case AV_PIX_FMT_GBRP:
+    case AV_PIX_FMT_GBRAP:
+    case AV_PIX_FMT_GRAY8:
+    case AV_PIX_FMT_GRAY16BE:
+    case AV_PIX_FMT_GRAY16LE:
+    case AV_PIX_FMT_YUVJ420P:
+    case AV_PIX_FMT_YUVJ422P:
+    case AV_PIX_FMT_YUVJ440P:
+    case AV_PIX_FMT_YUVJ444P:
+    case AV_PIX_FMT_YUVA420P:
+    case AV_PIX_FMT_YUVA422P:
+    case AV_PIX_FMT_YUVA444P:
+    case AV_PIX_FMT_YUV420P9LE:
+    case AV_PIX_FMT_YUV420P9BE:
+    case AV_PIX_FMT_YUV420P10LE:
+    case AV_PIX_FMT_YUV420P10BE:
+    case AV_PIX_FMT_YUV420P12LE:
+    case AV_PIX_FMT_YUV420P12BE:
+    case AV_PIX_FMT_YUV420P14LE:
+    case AV_PIX_FMT_YUV420P14BE:
+    case AV_PIX_FMT_YUV420P16LE:
+    case AV_PIX_FMT_YUV420P16BE:
+    case AV_PIX_FMT_YUVA420P9LE:
+    case AV_PIX_FMT_YUVA420P9BE:
+    case AV_PIX_FMT_YUVA420P10LE:
+    case AV_PIX_FMT_YUVA420P10BE:
+    case AV_PIX_FMT_YUVA420P16LE:
+    case AV_PIX_FMT_YUVA420P16BE:
+    case AV_PIX_FMT_YUV422P9LE:
+    case AV_PIX_FMT_YUV422P9BE:
+    case AV_PIX_FMT_YUV422P10LE:
+    case AV_PIX_FMT_YUV422P10BE:
+    case AV_PIX_FMT_YUV422P12LE:
+    case AV_PIX_FMT_YUV422P12BE:
+    case AV_PIX_FMT_YUV422P14LE:
+    case AV_PIX_FMT_YUV422P14BE:
+    case AV_PIX_FMT_YUV422P16LE:
+    case AV_PIX_FMT_YUV422P16BE:
+    case AV_PIX_FMT_YUVA422P9LE:
+    case AV_PIX_FMT_YUVA422P9BE:
+    case AV_PIX_FMT_YUVA422P10LE:
+    case AV_PIX_FMT_YUVA422P10BE:
+    case AV_PIX_FMT_YUVA422P12LE:
+    case AV_PIX_FMT_YUVA422P12BE:
+    case AV_PIX_FMT_YUVA422P16LE:
+    case AV_PIX_FMT_YUVA422P16BE:
+    case AV_PIX_FMT_YUV440P10LE:
+    case AV_PIX_FMT_YUV440P10BE:
+    case AV_PIX_FMT_YUV440P12LE:
+    case AV_PIX_FMT_YUV440P12BE:
+    case AV_PIX_FMT_YUV444P9LE:
+    case AV_PIX_FMT_YUV444P9BE:
+    case AV_PIX_FMT_YUV444P10LE:
+    case AV_PIX_FMT_YUV444P10BE:
+    case AV_PIX_FMT_YUV444P12LE:
+    case AV_PIX_FMT_YUV444P12BE:
+    case AV_PIX_FMT_YUV444P14LE:
+    case AV_PIX_FMT_YUV444P14BE:
+    case AV_PIX_FMT_YUV444P16LE:
+    case AV_PIX_FMT_YUV444P16BE:
+    case AV_PIX_FMT_YUVA444P9LE:
+    case AV_PIX_FMT_YUVA444P9BE:
+    case AV_PIX_FMT_YUVA444P10LE:
+    case AV_PIX_FMT_YUVA444P10BE:
+    case AV_PIX_FMT_YUVA444P12LE:
+    case AV_PIX_FMT_YUVA444P12BE:
+    case AV_PIX_FMT_YUVA444P16LE:
+    case AV_PIX_FMT_YUVA444P16BE:
+    case AV_PIX_FMT_GBRP9LE:
+    case AV_PIX_FMT_GBRP9BE:
+    case AV_PIX_FMT_GBRP10LE:
+    case AV_PIX_FMT_GBRP10BE:
+    case AV_PIX_FMT_GBRP12LE:
+    case AV_PIX_FMT_GBRP12BE:
+    case AV_PIX_FMT_GBRP14LE:
+    case AV_PIX_FMT_GBRP14BE:
+    case AV_PIX_FMT_GBRP16LE:
+    case AV_PIX_FMT_GBRP16BE:
+    case AV_PIX_FMT_GBRAP12LE:
+    case AV_PIX_FMT_GBRAP12BE:
+    case AV_PIX_FMT_GBRAP16LE:
+    case AV_PIX_FMT_GBRAP16BE:
+        w_align = 16; //FIXME assume 16 pixel per macroblock
+        h_align = 16 * 2; // interlaced needs 2 macroblocks height
+        break;
+    case AV_PIX_FMT_YUV411P:
+    case AV_PIX_FMT_YUVJ411P:
+    case AV_PIX_FMT_UYYVYY411:
+        w_align = 32;
+        h_align = 16 * 2;
+        break;
+    case AV_PIX_FMT_YUV410P:
+        if (s->codec_id == AV_CODEC_ID_SVQ1) {
+            w_align = 64;
+            h_align = 64;
+        }
+        break;
+    case AV_PIX_FMT_RGB555:
+        if (s->codec_id == AV_CODEC_ID_RPZA) {
+            w_align = 4;
+            h_align = 4;
+        }
+        if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
+            w_align = 8;
+            h_align = 8;
+        }
+        break;
+    case AV_PIX_FMT_PAL8:
+    case AV_PIX_FMT_BGR8:
+    case AV_PIX_FMT_RGB8:
+        if (s->codec_id == AV_CODEC_ID_SMC ||
+            s->codec_id == AV_CODEC_ID_CINEPAK) {
+            w_align = 4;
+            h_align = 4;
+        }
+        if (s->codec_id == AV_CODEC_ID_JV ||
+            s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
+            w_align = 8;
+            h_align = 8;
+        }
+        break;
+    case AV_PIX_FMT_BGR24:
+        if ((s->codec_id == AV_CODEC_ID_MSZH) ||
+            (s->codec_id == AV_CODEC_ID_ZLIB)) {
+            w_align = 4;
+            h_align = 4;
+        }
+        break;
+    case AV_PIX_FMT_RGB24:
+        if (s->codec_id == AV_CODEC_ID_CINEPAK) {
+            w_align = 4;
+            h_align = 4;
+        }
+        break;
+    default:
+        break;
+    }
+
+    if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
+        w_align = FFMAX(w_align, 8);
+    }
+
+    *width  = FFALIGN(*width, w_align);
+    *height = FFALIGN(*height, h_align);
+    if (s->codec_id == AV_CODEC_ID_H264 || s->lowres ||
+        s->codec_id == AV_CODEC_ID_VP5  || s->codec_id == AV_CODEC_ID_VP6 ||
+        s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
+    ) {
+        // some of the optimized chroma MC reads one line too much
+        // which is also done in mpeg decoders with lowres > 0
+        *height += 2;
+
+        // H.264 uses edge emulation for out of frame motion vectors, for this
+        // it requires a temporary area large enough to hold a 21x21 block,
+        // increasing witdth ensure that the temporary area is large enough,
+        // the next rounded up width is 32
+        *width = FFMAX(*width, 32);
+    }
+
+    for (i = 0; i < 4; i++)
+        linesize_align[i] = STRIDE_ALIGN;
+}
+
+void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
+    int chroma_shift = desc->log2_chroma_w;
+    int linesize_align[AV_NUM_DATA_POINTERS];
+    int align;
+
+    avcodec_align_dimensions2(s, width, height, linesize_align);
+    align               = FFMAX(linesize_align[0], linesize_align[3]);
+    linesize_align[1] <<= chroma_shift;
+    linesize_align[2] <<= chroma_shift;
+    align               = FFMAX3(align, linesize_align[1], linesize_align[2]);
+    *width              = FFALIGN(*width, align);
+}
+
+int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
+{
+    if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
+        return AVERROR(EINVAL);
+    pos--;
+
+    *xpos = (pos&1) * 128;
+    *ypos = ((pos>>1)^(pos<4)) * 128;
+
+    return 0;
+}
+
+enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
+{
+    int pos, xout, yout;
+
+    for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
+        if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
+            return pos;
+    }
+    return AVCHROMA_LOC_UNSPECIFIED;
+}
+
+int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
+                             enum AVSampleFormat sample_fmt, const uint8_t *buf,
+                             int buf_size, int align)
+{
+    int ch, planar, needed_size, ret = 0;
+
+    needed_size = av_samples_get_buffer_size(NULL, nb_channels,
+                                             frame->nb_samples, sample_fmt,
+                                             align);
+    if (buf_size < needed_size)
+        return AVERROR(EINVAL);
+
+    planar = av_sample_fmt_is_planar(sample_fmt);
+    if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
+        if (!(frame->extended_data = av_mallocz_array(nb_channels,
+                                                sizeof(*frame->extended_data))))
+            return AVERROR(ENOMEM);
+    } else {
+        frame->extended_data = frame->data;
+    }
+
+    if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
+                                      (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
+                                      sample_fmt, align)) < 0) {
+        if (frame->extended_data != frame->data)
+            av_freep(&frame->extended_data);
+        return ret;
+    }
+    if (frame->extended_data != frame->data) {
+        for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
+            frame->data[ch] = frame->extended_data[ch];
+    }
+
+    return ret;
+}
+
+void ff_color_frame(AVFrame *frame, const int c[4])
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
+    int p, y, x;
+
+    av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
+
+    for (p = 0; p<desc->nb_components; p++) {
+        uint8_t *dst = frame->data[p];
+        int is_chroma = p == 1 || p == 2;
+        int bytes  = is_chroma ? AV_CEIL_RSHIFT(frame->width,  desc->log2_chroma_w) : frame->width;
+        int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
+        for (y = 0; y < height; y++) {
+            if (desc->comp[0].depth >= 9) {
+                for (x = 0; x<bytes; x++)
+                    ((uint16_t*)dst)[x] = c[p];
+            }else
+                memset(dst, c[p], bytes);
+            dst += frame->linesize[p];
+        }
+    }
+}
+
+int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
+{
+    int i;
+
+    for (i = 0; i < count; i++) {
+        int r = func(c, (char *)arg + i * size);
+        if (ret)
+            ret[i] = r;
+    }
+    emms_c();
+    return 0;
+}
+
+int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
+{
+    int i;
+
+    for (i = 0; i < count; i++) {
+        int r = func(c, arg, i, 0);
+        if (ret)
+            ret[i] = r;
+    }
+    emms_c();
+    return 0;
+}
+
+enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
+                                       unsigned int fourcc)
+{
+    while (tags->pix_fmt >= 0) {
+        if (tags->fourcc == fourcc)
+            return tags->pix_fmt;
+        tags++;
+    }
+    return AV_PIX_FMT_NONE;
+}
+
+#if FF_API_CODEC_GET_SET
+MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
+MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
+MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
+MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
+MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
+
+unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
+{
+    return codec->properties;
+}
+
+int av_codec_get_max_lowres(const AVCodec *codec)
+{
+    return codec->max_lowres;
+}
+#endif
+
+int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
+    return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
+}
+
+static int64_t get_bit_rate(AVCodecContext *ctx)
+{
+    int64_t bit_rate;
+    int bits_per_sample;
+
+    switch (ctx->codec_type) {
+    case AVMEDIA_TYPE_VIDEO:
+    case AVMEDIA_TYPE_DATA:
+    case AVMEDIA_TYPE_SUBTITLE:
+    case AVMEDIA_TYPE_ATTACHMENT:
+        bit_rate = ctx->bit_rate;
+        break;
+    case AVMEDIA_TYPE_AUDIO:
+        bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
+        bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
+        break;
+    default:
+        bit_rate = 0;
+        break;
+    }
+    return bit_rate;
+}
+
+
+static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec)
+{
+    if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
+        ff_mutex_lock(&codec_mutex);
+}
+
+static void ff_unlock_avcodec(const AVCodec *codec)
+{
+    if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init)
+        ff_mutex_unlock(&codec_mutex);
+}
+
+int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
+{
+    int ret = 0;
+
+    ff_unlock_avcodec(codec);
+
+    ret = avcodec_open2(avctx, codec, options);
+
+    ff_lock_avcodec(avctx, codec);
+    return ret;
+}
+
+int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
+{
+    int ret = 0;
+    int codec_init_ok = 0;
+    AVDictionary *tmp = NULL;
+    const AVPixFmtDescriptor *pixdesc;
+
+    if (avcodec_is_open(avctx))
+        return 0;
+
+    if ((!codec && !avctx->codec)) {
+        av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
+        return AVERROR(EINVAL);
+    }
+    if ((codec && avctx->codec && codec != avctx->codec)) {
+        av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
+                                    "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
+        return AVERROR(EINVAL);
+    }
+    if (!codec)
+        codec = avctx->codec;
+
+    if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
+        return AVERROR(EINVAL);
+
+    if (options)
+        av_dict_copy(&tmp, *options, 0);
+
+    ff_lock_avcodec(avctx, codec);
+
+    avctx->internal = av_mallocz(sizeof(*avctx->internal));
+    if (!avctx->internal) {
+        ret = AVERROR(ENOMEM);
+        goto end;
+    }
+
+    avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
+    if (!avctx->internal->pool) {
+        ret = AVERROR(ENOMEM);
+        goto free_and_end;
+    }
+
+    avctx->internal->to_free = av_frame_alloc();
+    if (!avctx->internal->to_free) {
+        ret = AVERROR(ENOMEM);
+        goto free_and_end;
+    }
+
+    avctx->internal->compat_decode_frame = av_frame_alloc();
+    if (!avctx->internal->compat_decode_frame) {
+        ret = AVERROR(ENOMEM);
+        goto free_and_end;
+    }
+
+    avctx->internal->buffer_frame = av_frame_alloc();
+    if (!avctx->internal->buffer_frame) {
+        ret = AVERROR(ENOMEM);
+        goto free_and_end;
+    }
+
+    avctx->internal->buffer_pkt = av_packet_alloc();
+    if (!avctx->internal->buffer_pkt) {
+        ret = AVERROR(ENOMEM);
+        goto free_and_end;
+    }
+
+    avctx->internal->ds.in_pkt = av_packet_alloc();
+    if (!avctx->internal->ds.in_pkt) {
+        ret = AVERROR(ENOMEM);
+        goto free_and_end;
+    }
+
+    avctx->internal->last_pkt_props = av_packet_alloc();
+    if (!avctx->internal->last_pkt_props) {
+        ret = AVERROR(ENOMEM);
+        goto free_and_end;
+    }
+
+    avctx->internal->skip_samples_multiplier = 1;
+
+    if (codec->priv_data_size > 0) {
+        if (!avctx->priv_data) {
+            avctx->priv_data = av_mallocz(codec->priv_data_size);
+            if (!avctx->priv_data) {
+                ret = AVERROR(ENOMEM);
+                goto end;
+            }
+            if (codec->priv_class) {
+                *(const AVClass **)avctx->priv_data = codec->priv_class;
+                av_opt_set_defaults(avctx->priv_data);
+            }
+        }
+        if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
+            goto free_and_end;
+    } else {
+        avctx->priv_data = NULL;
+    }
+    if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
+        goto free_and_end;
+
+    if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
+        av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
+        ret = AVERROR(EINVAL);
+        goto free_and_end;
+    }
+
+    // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
+    if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
+          (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
+    if (avctx->coded_width && avctx->coded_height)
+        ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
+    else if (avctx->width && avctx->height)
+        ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
+    if (ret < 0)
+        goto free_and_end;
+    }
+
+    if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
+        && (  av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
+           || av_image_check_size2(avctx->width,       avctx->height,       avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
+        av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
+        ff_set_dimensions(avctx, 0, 0);
+    }
+
+    if (avctx->width > 0 && avctx->height > 0) {
+        if (av_image_check_sar(avctx->width, avctx->height,
+                               avctx->sample_aspect_ratio) < 0) {
+            av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
+                   avctx->sample_aspect_ratio.num,
+                   avctx->sample_aspect_ratio.den);
+            avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
+        }
+    }
+
+    /* if the decoder init function was already called previously,
+     * free the already allocated subtitle_header before overwriting it */
+    if (av_codec_is_decoder(codec))
+        av_freep(&avctx->subtitle_header);
+
+    if (avctx->channels > FF_SANE_NB_CHANNELS) {
+        av_log(avctx, AV_LOG_ERROR, "Too many channels: %d\n", avctx->channels);
+        ret = AVERROR(EINVAL);
+        goto free_and_end;
+    }
+
+    avctx->codec = codec;
+    if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
+        avctx->codec_id == AV_CODEC_ID_NONE) {
+        avctx->codec_type = codec->type;
+        avctx->codec_id   = codec->id;
+    }
+    if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
+                                         && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
+        av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
+        ret = AVERROR(EINVAL);
+        goto free_and_end;
+    }
+    avctx->frame_number = 0;
+    avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
+
+    if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
+        avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
+        const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
+        AVCodec *codec2;
+        av_log(avctx, AV_LOG_ERROR,
+               "The %s '%s' is experimental but experimental codecs are not enabled, "
+               "add '-strict %d' if you want to use it.\n",
+               codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
+        codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
+        if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
+            av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
+                codec_string, codec2->name);
+        ret = AVERROR_EXPERIMENTAL;
+        goto free_and_end;
+    }
+
+    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
+        (!avctx->time_base.num || !avctx->time_base.den)) {
+        avctx->time_base.num = 1;
+        avctx->time_base.den = avctx->sample_rate;
+    }
+
+    if (!HAVE_THREADS)
+        av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
+
+    if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
+        ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
+        ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
+        ff_lock_avcodec(avctx, codec);
+        if (ret < 0)
+            goto free_and_end;
+    }
+
+    if (av_codec_is_decoder(avctx->codec)) {
+        ret = ff_decode_bsfs_init(avctx);
+        if (ret < 0)
+            goto free_and_end;
+    }
+
+    if (HAVE_THREADS
+        && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
+        ret = ff_thread_init(avctx);
+        if (ret < 0) {
+            goto free_and_end;
+        }
+    }
+    if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
+        avctx->thread_count = 1;
+
+    if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
+        av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
+               avctx->codec->max_lowres);
+        avctx->lowres = avctx->codec->max_lowres;
+    }
+
+    if (av_codec_is_encoder(avctx->codec)) {
+        int i;
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+        avctx->coded_frame = av_frame_alloc();
+        if (!avctx->coded_frame) {
+            ret = AVERROR(ENOMEM);
+            goto free_and_end;
+        }
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+        if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
+            av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
+            ret = AVERROR(EINVAL);
+            goto free_and_end;
+        }
+
+        if (avctx->codec->sample_fmts) {
+            for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
+                if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
+                    break;
+                if (avctx->channels == 1 &&
+                    av_get_planar_sample_fmt(avctx->sample_fmt) ==
+                    av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
+                    avctx->sample_fmt = avctx->codec->sample_fmts[i];
+                    break;
+                }
+            }
+            if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
+                char buf[128];
+                snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
+                av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
+                       (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
+                ret = AVERROR(EINVAL);
+                goto free_and_end;
+            }
+        }
+        if (avctx->codec->pix_fmts) {
+            for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
+                if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
+                    break;
+            if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
+                && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
+                     && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
+                char buf[128];
+                snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
+                av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
+                       (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
+                ret = AVERROR(EINVAL);
+                goto free_and_end;
+            }
+            if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
+                avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
+                avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
+                avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
+                avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
+                avctx->color_range = AVCOL_RANGE_JPEG;
+        }
+        if (avctx->codec->supported_samplerates) {
+            for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
+                if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
+                    break;
+            if (avctx->codec->supported_samplerates[i] == 0) {
+                av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
+                       avctx->sample_rate);
+                ret = AVERROR(EINVAL);
+                goto free_and_end;
+            }
+        }
+        if (avctx->sample_rate < 0) {
+            av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
+                    avctx->sample_rate);
+            ret = AVERROR(EINVAL);
+            goto free_and_end;
+        }
+        if (avctx->codec->channel_layouts) {
+            if (!avctx->channel_layout) {
+                av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
+            } else {
+                for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
+                    if (avctx->channel_layout == avctx->codec->channel_layouts[i])
+                        break;
+                if (avctx->codec->channel_layouts[i] == 0) {
+                    char buf[512];
+                    av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
+                    av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
+                    ret = AVERROR(EINVAL);
+                    goto free_and_end;
+                }
+            }
+        }
+        if (avctx->channel_layout && avctx->channels) {
+            int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
+            if (channels != avctx->channels) {
+                char buf[512];
+                av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
+                av_log(avctx, AV_LOG_ERROR,
+                       "Channel layout '%s' with %d channels does not match number of specified channels %d\n",
+                       buf, channels, avctx->channels);
+                ret = AVERROR(EINVAL);
+                goto free_and_end;
+            }
+        } else if (avctx->channel_layout) {
+            avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
+        }
+        if (avctx->channels < 0) {
+            av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
+                    avctx->channels);
+            ret = AVERROR(EINVAL);
+            goto free_and_end;
+        }
+        if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+            pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
+            if (    avctx->bits_per_raw_sample < 0
+                || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
+                av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
+                    avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
+                avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
+            }
+            if (avctx->width <= 0 || avctx->height <= 0) {
+                av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
+                ret = AVERROR(EINVAL);
+                goto free_and_end;
+            }
+        }
+        if (   (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
+            && avctx->bit_rate>0 && avctx->bit_rate<1000) {
+            av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
+        }
+
+        if (!avctx->rc_initial_buffer_occupancy)
+            avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
+
+        if (avctx->ticks_per_frame && avctx->time_base.num &&
+            avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
+            av_log(avctx, AV_LOG_ERROR,
+                   "ticks_per_frame %d too large for the timebase %d/%d.",
+                   avctx->ticks_per_frame,
+                   avctx->time_base.num,
+                   avctx->time_base.den);
+            goto free_and_end;
+        }
+
+        if (avctx->hw_frames_ctx) {
+            AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
+            if (frames_ctx->format != avctx->pix_fmt) {
+                av_log(avctx, AV_LOG_ERROR,
+                       "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
+                ret = AVERROR(EINVAL);
+                goto free_and_end;
+            }
+            if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
+                avctx->sw_pix_fmt != frames_ctx->sw_format) {
+                av_log(avctx, AV_LOG_ERROR,
+                       "Mismatching AVCodecContext.sw_pix_fmt (%s) "
+                       "and AVHWFramesContext.sw_format (%s)\n",
+                       av_get_pix_fmt_name(avctx->sw_pix_fmt),
+                       av_get_pix_fmt_name(frames_ctx->sw_format));
+                ret = AVERROR(EINVAL);
+                goto free_and_end;
+            }
+            avctx->sw_pix_fmt = frames_ctx->sw_format;
+        }
+    }
+
+    avctx->pts_correction_num_faulty_pts =
+    avctx->pts_correction_num_faulty_dts = 0;
+    avctx->pts_correction_last_pts =
+    avctx->pts_correction_last_dts = INT64_MIN;
+
+    if (   !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
+        && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
+        av_log(avctx, AV_LOG_WARNING,
+               "gray decoding requested but not enabled at configuration time\n");
+
+    if (   avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
+        || avctx->internal->frame_thread_encoder)) {
+        ret = avctx->codec->init(avctx);
+        if (ret < 0) {
+            goto free_and_end;
+        }
+        codec_init_ok = 1;
+    }
+
+    ret=0;
+
+    if (av_codec_is_decoder(avctx->codec)) {
+        if (!avctx->bit_rate)
+            avctx->bit_rate = get_bit_rate(avctx);
+        /* validate channel layout from the decoder */
+        if (avctx->channel_layout) {
+            int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
+            if (!avctx->channels)
+                avctx->channels = channels;
+            else if (channels != avctx->channels) {
+                char buf[512];
+                av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
+                av_log(avctx, AV_LOG_WARNING,
+                       "Channel layout '%s' with %d channels does not match specified number of channels %d: "
+                       "ignoring specified channel layout\n",
+                       buf, channels, avctx->channels);
+                avctx->channel_layout = 0;
+            }
+        }
+        if (avctx->channels && avctx->channels < 0 ||
+            avctx->channels > FF_SANE_NB_CHANNELS) {
+            ret = AVERROR(EINVAL);
+            goto free_and_end;
+        }
+        if (avctx->bits_per_coded_sample < 0) {
+            ret = AVERROR(EINVAL);
+            goto free_and_end;
+        }
+        if (avctx->sub_charenc) {
+            if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
+                av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
+                       "supported with subtitles codecs\n");
+                ret = AVERROR(EINVAL);
+                goto free_and_end;
+            } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
+                av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
+                       "subtitles character encoding will be ignored\n",
+                       avctx->codec_descriptor->name);
+                avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
+            } else {
+                /* input character encoding is set for a text based subtitle
+                 * codec at this point */
+                if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
+                    avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
+
+                if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
+#if CONFIG_ICONV
+                    iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
+                    if (cd == (iconv_t)-1) {
+                        ret = AVERROR(errno);
+                        av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
+                               "with input character encoding \"%s\"\n", avctx->sub_charenc);
+                        goto free_and_end;
+                    }
+                    iconv_close(cd);
+#else
+                    av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
+                           "conversion needs a libavcodec built with iconv support "
+                           "for this codec\n");
+                    ret = AVERROR(ENOSYS);
+                    goto free_and_end;
+#endif
+                }
+            }
+        }
+
+#if FF_API_AVCTX_TIMEBASE
+        if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
+            avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
+#endif
+    }
+    if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
+        av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
+    }
+
+end:
+    ff_unlock_avcodec(codec);
+    if (options) {
+        av_dict_free(options);
+        *options = tmp;
+    }
+
+    return ret;
+free_and_end:
+    if (avctx->codec && avctx->codec->close &&
+        (codec_init_ok ||
+         (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
+        avctx->codec->close(avctx);
+
+    if (codec->priv_class && codec->priv_data_size)
+        av_opt_free(avctx->priv_data);
+    av_opt_free(avctx);
+
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+    av_frame_free(&avctx->coded_frame);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+    av_dict_free(&tmp);
+    av_freep(&avctx->priv_data);
+    av_freep(&avctx->subtitle_header);
+    if (avctx->internal) {
+        av_frame_free(&avctx->internal->to_free);
+        av_frame_free(&avctx->internal->compat_decode_frame);
+        av_frame_free(&avctx->internal->buffer_frame);
+        av_packet_free(&avctx->internal->buffer_pkt);
+        av_packet_free(&avctx->internal->last_pkt_props);
+
+        av_packet_free(&avctx->internal->ds.in_pkt);
+        ff_decode_bsfs_uninit(avctx);
+
+        av_freep(&avctx->internal->pool);
+    }
+    av_freep(&avctx->internal);
+    avctx->codec = NULL;
+    goto end;
+}
+
+void avsubtitle_free(AVSubtitle *sub)
+{
+    int i;
+
+    for (i = 0; i < sub->num_rects; i++) {
+        av_freep(&sub->rects[i]->data[0]);
+        av_freep(&sub->rects[i]->data[1]);
+        av_freep(&sub->rects[i]->data[2]);
+        av_freep(&sub->rects[i]->data[3]);
+        av_freep(&sub->rects[i]->text);
+        av_freep(&sub->rects[i]->ass);
+        av_freep(&sub->rects[i]);
+    }
+
+    av_freep(&sub->rects);
+
+    memset(sub, 0, sizeof(*sub));
+}
+
+av_cold int avcodec_close(AVCodecContext *avctx)
+{
+    int i;
+
+    if (!avctx)
+        return 0;
+
+    if (avcodec_is_open(avctx)) {
+        FramePool *pool = avctx->internal->pool;
+        if (CONFIG_FRAME_THREAD_ENCODER &&
+            avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
+            ff_frame_thread_encoder_free(avctx);
+        }
+        if (HAVE_THREADS && avctx->internal->thread_ctx)
+            ff_thread_free(avctx);
+        if (avctx->codec && avctx->codec->close)
+            avctx->codec->close(avctx);
+        avctx->internal->byte_buffer_size = 0;
+        av_freep(&avctx->internal->byte_buffer);
+        av_frame_free(&avctx->internal->to_free);
+        av_frame_free(&avctx->internal->compat_decode_frame);
+        av_frame_free(&avctx->internal->buffer_frame);
+        av_packet_free(&avctx->internal->buffer_pkt);
+        av_packet_free(&avctx->internal->last_pkt_props);
+
+        av_packet_free(&avctx->internal->ds.in_pkt);
+
+        for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
+            av_buffer_pool_uninit(&pool->pools[i]);
+        av_freep(&avctx->internal->pool);
+
+        if (avctx->hwaccel && avctx->hwaccel->uninit)
+            avctx->hwaccel->uninit(avctx);
+        av_freep(&avctx->internal->hwaccel_priv_data);
+
+        ff_decode_bsfs_uninit(avctx);
+
+        av_freep(&avctx->internal);
+    }
+
+    for (i = 0; i < avctx->nb_coded_side_data; i++)
+        av_freep(&avctx->coded_side_data[i].data);
+    av_freep(&avctx->coded_side_data);
+    avctx->nb_coded_side_data = 0;
+
+    av_buffer_unref(&avctx->hw_frames_ctx);
+    av_buffer_unref(&avctx->hw_device_ctx);
+
+    if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
+        av_opt_free(avctx->priv_data);
+    av_opt_free(avctx);
+    av_freep(&avctx->priv_data);
+    if (av_codec_is_encoder(avctx->codec)) {
+        av_freep(&avctx->extradata);
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+        av_frame_free(&avctx->coded_frame);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+    }
+    avctx->codec = NULL;
+    avctx->active_thread_type = 0;
+
+    return 0;
+}
+
+const char *avcodec_get_name(enum AVCodecID id)
+{
+    const AVCodecDescriptor *cd;
+    AVCodec *codec;
+
+    if (id == AV_CODEC_ID_NONE)
+        return "none";
+    cd = avcodec_descriptor_get(id);
+    if (cd)
+        return cd->name;
+    av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
+    codec = avcodec_find_decoder(id);
+    if (codec)
+        return codec->name;
+    codec = avcodec_find_encoder(id);
+    if (codec)
+        return codec->name;
+    return "unknown_codec";
+}
+
+size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
+{
+    int i, len, ret = 0;
+
+#define TAG_PRINT(x)                                              \
+    (((x) >= '0' && (x) <= '9') ||                                \
+     ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') ||  \
+     ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
+
+    for (i = 0; i < 4; i++) {
+        len = snprintf(buf, buf_size,
+                       TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
+        buf        += len;
+        buf_size    = buf_size > len ? buf_size - len : 0;
+        ret        += len;
+        codec_tag >>= 8;
+    }
+    return ret;
+}
+
+void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
+{
+    const char *codec_type;
+    const char *codec_name;
+    const char *profile = NULL;
+    int64_t bitrate;
+    int new_line = 0;
+    AVRational display_aspect_ratio;
+    const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
+
+    if (!buf || buf_size <= 0)
+        return;
+    codec_type = av_get_media_type_string(enc->codec_type);
+    codec_name = avcodec_get_name(enc->codec_id);
+    profile = avcodec_profile_name(enc->codec_id, enc->profile);
+
+    snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
+             codec_name);
+    buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
+
+    if (enc->codec && strcmp(enc->codec->name, codec_name))
+        snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
+
+    if (profile)
+        snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
+    if (   enc->codec_type == AVMEDIA_TYPE_VIDEO
+        && av_log_get_level() >= AV_LOG_VERBOSE
+        && enc->refs)
+        snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                 ", %d reference frame%s",
+                 enc->refs, enc->refs > 1 ? "s" : "");
+
+    if (enc->codec_tag)
+        snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
+                 av_fourcc2str(enc->codec_tag), enc->codec_tag);
+
+    switch (enc->codec_type) {
+    case AVMEDIA_TYPE_VIDEO:
+        {
+            char detail[256] = "(";
+
+            av_strlcat(buf, separator, buf_size);
+
+            snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                 "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
+                     av_get_pix_fmt_name(enc->pix_fmt));
+            if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
+                enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
+                av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
+            if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
+                av_strlcatf(detail, sizeof(detail), "%s, ",
+                            av_color_range_name(enc->color_range));
+
+            if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
+                enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
+                enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
+                if (enc->colorspace != (int)enc->color_primaries ||
+                    enc->colorspace != (int)enc->color_trc) {
+                    new_line = 1;
+                    av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
+                                av_color_space_name(enc->colorspace),
+                                av_color_primaries_name(enc->color_primaries),
+                                av_color_transfer_name(enc->color_trc));
+                } else
+                    av_strlcatf(detail, sizeof(detail), "%s, ",
+                                av_get_colorspace_name(enc->colorspace));
+            }
+
+            if (enc->field_order != AV_FIELD_UNKNOWN) {
+                const char *field_order = "progressive";
+                if (enc->field_order == AV_FIELD_TT)
+                    field_order = "top first";
+                else if (enc->field_order == AV_FIELD_BB)
+                    field_order = "bottom first";
+                else if (enc->field_order == AV_FIELD_TB)
+                    field_order = "top coded first (swapped)";
+                else if (enc->field_order == AV_FIELD_BT)
+                    field_order = "bottom coded first (swapped)";
+
+                av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
+            }
+
+            if (av_log_get_level() >= AV_LOG_VERBOSE &&
+                enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
+                av_strlcatf(detail, sizeof(detail), "%s, ",
+                            av_chroma_location_name(enc->chroma_sample_location));
+
+            if (strlen(detail) > 1) {
+                detail[strlen(detail) - 2] = 0;
+                av_strlcatf(buf, buf_size, "%s)", detail);
+            }
+        }
+
+        if (enc->width) {
+            av_strlcat(buf, new_line ? separator : ", ", buf_size);
+
+            snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                     "%dx%d",
+                     enc->width, enc->height);
+
+            if (av_log_get_level() >= AV_LOG_VERBOSE &&
+                (enc->width != enc->coded_width ||
+                 enc->height != enc->coded_height))
+                snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                         " (%dx%d)", enc->coded_width, enc->coded_height);
+
+            if (enc->sample_aspect_ratio.num) {
+                av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
+                          enc->width * (int64_t)enc->sample_aspect_ratio.num,
+                          enc->height * (int64_t)enc->sample_aspect_ratio.den,
+                          1024 * 1024);
+                snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                         " [SAR %d:%d DAR %d:%d]",
+                         enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
+                         display_aspect_ratio.num, display_aspect_ratio.den);
+            }
+            if (av_log_get_level() >= AV_LOG_DEBUG) {
+                int g = av_gcd(enc->time_base.num, enc->time_base.den);
+                snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                         ", %d/%d",
+                         enc->time_base.num / g, enc->time_base.den / g);
+            }
+        }
+        if (encode) {
+            snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                     ", q=%d-%d", enc->qmin, enc->qmax);
+        } else {
+            if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
+                snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                         ", Closed Captions");
+            if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
+                snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                         ", lossless");
+        }
+        break;
+    case AVMEDIA_TYPE_AUDIO:
+        av_strlcat(buf, separator, buf_size);
+
+        if (enc->sample_rate) {
+            snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                     "%d Hz, ", enc->sample_rate);
+        }
+        av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
+        if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
+            snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                     ", %s", av_get_sample_fmt_name(enc->sample_fmt));
+        }
+        if (   enc->bits_per_raw_sample > 0
+            && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
+            snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                     " (%d bit)", enc->bits_per_raw_sample);
+        if (av_log_get_level() >= AV_LOG_VERBOSE) {
+            if (enc->initial_padding)
+                snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                         ", delay %d", enc->initial_padding);
+            if (enc->trailing_padding)
+                snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                         ", padding %d", enc->trailing_padding);
+        }
+        break;
+    case AVMEDIA_TYPE_DATA:
+        if (av_log_get_level() >= AV_LOG_DEBUG) {
+            int g = av_gcd(enc->time_base.num, enc->time_base.den);
+            if (g)
+                snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                         ", %d/%d",
+                         enc->time_base.num / g, enc->time_base.den / g);
+        }
+        break;
+    case AVMEDIA_TYPE_SUBTITLE:
+        if (enc->width)
+            snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                     ", %dx%d", enc->width, enc->height);
+        break;
+    default:
+        return;
+    }
+    if (encode) {
+        if (enc->flags & AV_CODEC_FLAG_PASS1)
+            snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                     ", pass 1");
+        if (enc->flags & AV_CODEC_FLAG_PASS2)
+            snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                     ", pass 2");
+    }
+    bitrate = get_bit_rate(enc);
+    if (bitrate != 0) {
+        snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                 ", %"PRId64" kb/s", bitrate / 1000);
+    } else if (enc->rc_max_rate > 0) {
+        snprintf(buf + strlen(buf), buf_size - strlen(buf),
+                 ", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
+    }
+}
+
+const char *av_get_profile_name(const AVCodec *codec, int profile)
+{
+    const AVProfile *p;
+    if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
+        return NULL;
+
+    for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
+        if (p->profile == profile)
+            return p->name;
+
+    return NULL;
+}
+
+const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
+{
+    const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
+    const AVProfile *p;
+
+    if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
+        return NULL;
+
+    for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
+        if (p->profile == profile)
+            return p->name;
+
+    return NULL;
+}
+
+unsigned avcodec_version(void)
+{
+    av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
+    av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
+    av_assert0(AV_CODEC_ID_SRT==94216);
+    av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
+
+    return LIBAVCODEC_VERSION_INT;
+}
+
+const char *avcodec_configuration(void)
+{
+    return FFMPEG_CONFIGURATION;
+}
+
+const char *avcodec_license(void)
+{
+#define LICENSE_PREFIX "libavcodec license: "
+    return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+}
+
+int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
+{
+    switch (codec_id) {
+    case AV_CODEC_ID_8SVX_EXP:
+    case AV_CODEC_ID_8SVX_FIB:
+    case AV_CODEC_ID_ADPCM_CT:
+    case AV_CODEC_ID_ADPCM_IMA_APC:
+    case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
+    case AV_CODEC_ID_ADPCM_IMA_OKI:
+    case AV_CODEC_ID_ADPCM_IMA_WS:
+    case AV_CODEC_ID_ADPCM_G722:
+    case AV_CODEC_ID_ADPCM_YAMAHA:
+    case AV_CODEC_ID_ADPCM_AICA:
+        return 4;
+    case AV_CODEC_ID_DSD_LSBF:
+    case AV_CODEC_ID_DSD_MSBF:
+    case AV_CODEC_ID_DSD_LSBF_PLANAR:
+    case AV_CODEC_ID_DSD_MSBF_PLANAR:
+    case AV_CODEC_ID_PCM_ALAW:
+    case AV_CODEC_ID_PCM_MULAW:
+    case AV_CODEC_ID_PCM_VIDC:
+    case AV_CODEC_ID_PCM_S8:
+    case AV_CODEC_ID_PCM_S8_PLANAR:
+    case AV_CODEC_ID_PCM_U8:
+    case AV_CODEC_ID_PCM_ZORK:
+    case AV_CODEC_ID_SDX2_DPCM:
+        return 8;
+    case AV_CODEC_ID_PCM_S16BE:
+    case AV_CODEC_ID_PCM_S16BE_PLANAR:
+    case AV_CODEC_ID_PCM_S16LE:
+    case AV_CODEC_ID_PCM_S16LE_PLANAR:
+    case AV_CODEC_ID_PCM_U16BE:
+    case AV_CODEC_ID_PCM_U16LE:
+        return 16;
+    case AV_CODEC_ID_PCM_S24DAUD:
+    case AV_CODEC_ID_PCM_S24BE:
+    case AV_CODEC_ID_PCM_S24LE:
+    case AV_CODEC_ID_PCM_S24LE_PLANAR:
+    case AV_CODEC_ID_PCM_U24BE:
+    case AV_CODEC_ID_PCM_U24LE:
+        return 24;
+    case AV_CODEC_ID_PCM_S32BE:
+    case AV_CODEC_ID_PCM_S32LE:
+    case AV_CODEC_ID_PCM_S32LE_PLANAR:
+    case AV_CODEC_ID_PCM_U32BE:
+    case AV_CODEC_ID_PCM_U32LE:
+    case AV_CODEC_ID_PCM_F32BE:
+    case AV_CODEC_ID_PCM_F32LE:
+    case AV_CODEC_ID_PCM_F24LE:
+    case AV_CODEC_ID_PCM_F16LE:
+        return 32;
+    case AV_CODEC_ID_PCM_F64BE:
+    case AV_CODEC_ID_PCM_F64LE:
+    case AV_CODEC_ID_PCM_S64BE:
+    case AV_CODEC_ID_PCM_S64LE:
+        return 64;
+    default:
+        return 0;
+    }
+}
+
+enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
+{
+    static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
+        [AV_SAMPLE_FMT_U8  ] = { AV_CODEC_ID_PCM_U8,    AV_CODEC_ID_PCM_U8    },
+        [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
+        [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
+        [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
+        [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
+        [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8,    AV_CODEC_ID_PCM_U8    },
+        [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
+        [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
+        [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
+        [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
+        [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
+    };
+    if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
+        return AV_CODEC_ID_NONE;
+    if (be < 0 || be > 1)
+        be = AV_NE(1, 0);
+    return map[fmt][be];
+}
+
+int av_get_bits_per_sample(enum AVCodecID codec_id)
+{
+    switch (codec_id) {
+    case AV_CODEC_ID_ADPCM_SBPRO_2:
+        return 2;
+    case AV_CODEC_ID_ADPCM_SBPRO_3:
+        return 3;
+    case AV_CODEC_ID_ADPCM_SBPRO_4:
+    case AV_CODEC_ID_ADPCM_IMA_WAV:
+    case AV_CODEC_ID_ADPCM_IMA_QT:
+    case AV_CODEC_ID_ADPCM_SWF:
+    case AV_CODEC_ID_ADPCM_MS:
+        return 4;
+    default:
+        return av_get_exact_bits_per_sample(codec_id);
+    }
+}
+
+static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
+                                    uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
+                                    uint8_t * extradata, int frame_size, int frame_bytes)
+{
+    int bps = av_get_exact_bits_per_sample(id);
+    int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
+
+    /* codecs with an exact constant bits per sample */
+    if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
+        return (frame_bytes * 8LL) / (bps * ch);
+    bps = bits_per_coded_sample;
+
+    /* codecs with a fixed packet duration */
+    switch (id) {
+    case AV_CODEC_ID_ADPCM_ADX:    return   32;
+    case AV_CODEC_ID_ADPCM_IMA_QT: return   64;
+    case AV_CODEC_ID_ADPCM_EA_XAS: return  128;
+    case AV_CODEC_ID_AMR_NB:
+    case AV_CODEC_ID_EVRC:
+    case AV_CODEC_ID_GSM:
+    case AV_CODEC_ID_QCELP:
+    case AV_CODEC_ID_RA_288:       return  160;
+    case AV_CODEC_ID_AMR_WB:
+    case AV_CODEC_ID_GSM_MS:       return  320;
+    case AV_CODEC_ID_MP1:          return  384;
+    case AV_CODEC_ID_ATRAC1:       return  512;
+    case AV_CODEC_ID_ATRAC9:
+    case AV_CODEC_ID_ATRAC3:       return 1024 * framecount;
+    case AV_CODEC_ID_ATRAC3P:      return 2048;
+    case AV_CODEC_ID_MP2:
+    case AV_CODEC_ID_MUSEPACK7:    return 1152;
+    case AV_CODEC_ID_AC3:          return 1536;
+    }
+
+    if (sr > 0) {
+        /* calc from sample rate */
+        if (id == AV_CODEC_ID_TTA)
+            return 256 * sr / 245;
+        else if (id == AV_CODEC_ID_DST)
+            return 588 * sr / 44100;
+
+        if (ch > 0) {
+            /* calc from sample rate and channels */
+            if (id == AV_CODEC_ID_BINKAUDIO_DCT)
+                return (480 << (sr / 22050)) / ch;
+        }
+
+        if (id == AV_CODEC_ID_MP3)
+            return sr <= 24000 ? 576 : 1152;
+    }
+
+    if (ba > 0) {
+        /* calc from block_align */
+        if (id == AV_CODEC_ID_SIPR) {
+            switch (ba) {
+            case 20: return 160;
+            case 19: return 144;
+            case 29: return 288;
+            case 37: return 480;
+            }
+        } else if (id == AV_CODEC_ID_ILBC) {
+            switch (ba) {
+            case 38: return 160;
+            case 50: return 240;
+            }
+        }
+    }
+
+    if (frame_bytes > 0) {
+        /* calc from frame_bytes only */
+        if (id == AV_CODEC_ID_TRUESPEECH)
+            return 240 * (frame_bytes / 32);
+        if (id == AV_CODEC_ID_NELLYMOSER)
+            return 256 * (frame_bytes / 64);
+        if (id == AV_CODEC_ID_RA_144)
+            return 160 * (frame_bytes / 20);
+
+        if (bps > 0) {
+            /* calc from frame_bytes and bits_per_coded_sample */
+            if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
+                return frame_bytes * 8 / bps;
+        }
+
+        if (ch > 0 && ch < INT_MAX/16) {
+            /* calc from frame_bytes and channels */
+            switch (id) {
+            case AV_CODEC_ID_ADPCM_AFC:
+                return frame_bytes / (9 * ch) * 16;
+            case AV_CODEC_ID_ADPCM_PSX:
+            case AV_CODEC_ID_ADPCM_DTK:
+                return frame_bytes / (16 * ch) * 28;
+            case AV_CODEC_ID_ADPCM_4XM:
+            case AV_CODEC_ID_ADPCM_IMA_DAT4:
+            case AV_CODEC_ID_ADPCM_IMA_ISS:
+                return (frame_bytes - 4 * ch) * 2 / ch;
+            case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
+                return (frame_bytes - 4) * 2 / ch;
+            case AV_CODEC_ID_ADPCM_IMA_AMV:
+                return (frame_bytes - 8) * 2 / ch;
+            case AV_CODEC_ID_ADPCM_THP:
+            case AV_CODEC_ID_ADPCM_THP_LE:
+                if (extradata)
+                    return frame_bytes * 14 / (8 * ch);
+                break;
+            case AV_CODEC_ID_ADPCM_XA:
+                return (frame_bytes / 128) * 224 / ch;
+            case AV_CODEC_ID_INTERPLAY_DPCM:
+                return (frame_bytes - 6 - ch) / ch;
+            case AV_CODEC_ID_ROQ_DPCM:
+                return (frame_bytes - 8) / ch;
+            case AV_CODEC_ID_XAN_DPCM:
+                return (frame_bytes - 2 * ch) / ch;
+            case AV_CODEC_ID_MACE3:
+                return 3 * frame_bytes / ch;
+            case AV_CODEC_ID_MACE6:
+                return 6 * frame_bytes / ch;
+            case AV_CODEC_ID_PCM_LXF:
+                return 2 * (frame_bytes / (5 * ch));
+            case AV_CODEC_ID_IAC:
+            case AV_CODEC_ID_IMC:
+                return 4 * frame_bytes / ch;
+            }
+
+            if (tag) {
+                /* calc from frame_bytes, channels, and codec_tag */
+                if (id == AV_CODEC_ID_SOL_DPCM) {
+                    if (tag == 3)
+                        return frame_bytes / ch;
+                    else
+                        return frame_bytes * 2 / ch;
+                }
+            }
+
+            if (ba > 0) {
+                /* calc from frame_bytes, channels, and block_align */
+                int blocks = frame_bytes / ba;
+                switch (id) {
+                case AV_CODEC_ID_ADPCM_IMA_WAV:
+                    if (bps < 2 || bps > 5)
+                        return 0;
+                    return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
+                case AV_CODEC_ID_ADPCM_IMA_DK3:
+                    return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
+                case AV_CODEC_ID_ADPCM_IMA_DK4:
+                    return blocks * (1 + (ba - 4 * ch) * 2 / ch);
+                case AV_CODEC_ID_ADPCM_IMA_RAD:
+                    return blocks * ((ba - 4 * ch) * 2 / ch);
+                case AV_CODEC_ID_ADPCM_MS:
+                    return blocks * (2 + (ba - 7 * ch) * 2 / ch);
+                case AV_CODEC_ID_ADPCM_MTAF:
+                    return blocks * (ba - 16) * 2 / ch;
+                }
+            }
+
+            if (bps > 0) {
+                /* calc from frame_bytes, channels, and bits_per_coded_sample */
+                switch (id) {
+                case AV_CODEC_ID_PCM_DVD:
+                    if(bps<4 || frame_bytes<3)
+                        return 0;
+                    return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
+                case AV_CODEC_ID_PCM_BLURAY:
+                    if(bps<4 || frame_bytes<4)
+                        return 0;
+                    return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
+                case AV_CODEC_ID_S302M:
+                    return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
+                }
+            }
+        }
+    }
+
+    /* Fall back on using frame_size */
+    if (frame_size > 1 && frame_bytes)
+        return frame_size;
+
+    //For WMA we currently have no other means to calculate duration thus we
+    //do it here by assuming CBR, which is true for all known cases.
+    if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
+        if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
+            return  (frame_bytes * 8LL * sr) / bitrate;
+    }
+
+    return 0;
+}
+
+int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
+{
+    return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
+                                    avctx->channels, avctx->block_align,
+                                    avctx->codec_tag, avctx->bits_per_coded_sample,
+                                    avctx->bit_rate, avctx->extradata, avctx->frame_size,
+                                    frame_bytes);
+}
+
+int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
+{
+    return get_audio_frame_duration(par->codec_id, par->sample_rate,
+                                    par->channels, par->block_align,
+                                    par->codec_tag, par->bits_per_coded_sample,
+                                    par->bit_rate, par->extradata, par->frame_size,
+                                    frame_bytes);
+}
+
+#if !HAVE_THREADS
+int ff_thread_init(AVCodecContext *s)
+{
+    return -1;
+}
+
+#endif
+
+unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
+{
+    unsigned int n = 0;
+
+    while (v >= 0xff) {
+        *s++ = 0xff;
+        v -= 0xff;
+        n++;
+    }
+    *s = v;
+    n++;
+    return n;
+}
+
+int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
+{
+    int i;
+    for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
+    return i;
+}
+
+const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
+{
+    int i;
+    if (!codec->hw_configs || index < 0)
+        return NULL;
+    for (i = 0; i <= index; i++)
+        if (!codec->hw_configs[i])
+            return NULL;
+    return &codec->hw_configs[index]->public;
+}
+
+#if FF_API_USER_VISIBLE_AVHWACCEL
+AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel)
+{
+    return NULL;
+}
+
+void av_register_hwaccel(AVHWAccel *hwaccel)
+{
+}
+#endif
+
+#if FF_API_LOCKMGR
+int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
+{
+    return 0;
+}
+#endif
+
+unsigned int avpriv_toupper4(unsigned int x)
+{
+    return av_toupper(x & 0xFF) +
+          (av_toupper((x >>  8) & 0xFF) << 8)  +
+          (av_toupper((x >> 16) & 0xFF) << 16) +
+((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
+}
+
+int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
+{
+    int ret;
+
+    dst->owner[0] = src->owner[0];
+    dst->owner[1] = src->owner[1];
+
+    ret = av_frame_ref(dst->f, src->f);
+    if (ret < 0)
+        return ret;
+
+    av_assert0(!dst->progress);
+
+    if (src->progress &&
+        !(dst->progress = av_buffer_ref(src->progress))) {
+        ff_thread_release_buffer(dst->owner[0], dst);
+        return AVERROR(ENOMEM);
+    }
+
+    return 0;
+}
+
+#if !HAVE_THREADS
+
+enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
+{
+    return ff_get_format(avctx, fmt);
+}
+
+int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
+{
+    f->owner[0] = f->owner[1] = avctx;
+    return ff_get_buffer(avctx, f->f, flags);
+}
+
+void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
+{
+    if (f->f)
+        av_frame_unref(f->f);
+}
+
+void ff_thread_finish_setup(AVCodecContext *avctx)
+{
+}
+
+void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
+{
+}
+
+void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
+{
+}
+
+int ff_thread_can_start_frame(AVCodecContext *avctx)
+{
+    return 1;
+}
+
+int ff_alloc_entries(AVCodecContext *avctx, int count)
+{
+    return 0;
+}
+
+void ff_reset_entries(AVCodecContext *avctx)
+{
+}
+
+void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
+{
+}
+
+void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
+{
+}
+
+#endif
+
+int avcodec_is_open(AVCodecContext *s)
+{
+    return !!s->internal;
+}
+
+int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
+{
+    int ret;
+    char *str;
+
+    ret = av_bprint_finalize(buf, &str);
+    if (ret < 0)
+        return ret;
+    if (!av_bprint_is_complete(buf)) {
+        av_free(str);
+        return AVERROR(ENOMEM);
+    }
+
+    avctx->extradata = str;
+    /* Note: the string is NUL terminated (so extradata can be read as a
+     * string), but the ending character is not accounted in the size (in
+     * binary formats you are likely not supposed to mux that character). When
+     * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
+     * zeros. */
+    avctx->extradata_size = buf->len;
+    return 0;
+}
+
+const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
+                                      const uint8_t *end,
+                                      uint32_t *av_restrict state)
+{
+    int i;
+
+    av_assert0(p <= end);
+    if (p >= end)
+        return end;
+
+    for (i = 0; i < 3; i++) {
+        uint32_t tmp = *state << 8;
+        *state = tmp + *(p++);
+        if (tmp == 0x100 || p == end)
+            return p;
+    }
+
+    while (p < end) {
+        if      (p[-1] > 1      ) p += 3;
+        else if (p[-2]          ) p += 2;
+        else if (p[-3]|(p[-1]-1)) p++;
+        else {
+            p++;
+            break;
+        }
+    }
+
+    p = FFMIN(p, end) - 4;
+    *state = AV_RB32(p);
+
+    return p + 4;
+}
+
+AVCPBProperties *av_cpb_properties_alloc(size_t *size)
+{
+    AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
+    if (!props)
+        return NULL;
+
+    if (size)
+        *size = sizeof(*props);
+
+    props->vbv_delay = UINT64_MAX;
+
+    return props;
+}
+
+AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
+{
+    AVPacketSideData *tmp;
+    AVCPBProperties  *props;
+    size_t size;
+
+    props = av_cpb_properties_alloc(&size);
+    if (!props)
+        return NULL;
+
+    tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
+    if (!tmp) {
+        av_freep(&props);
+        return NULL;
+    }
+
+    avctx->coded_side_data = tmp;
+    avctx->nb_coded_side_data++;
+
+    avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
+    avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
+    avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
+
+    return props;
+}
+
+static void codec_parameters_reset(AVCodecParameters *par)
+{
+    av_freep(&par->extradata);
+
+    memset(par, 0, sizeof(*par));
+
+    par->codec_type          = AVMEDIA_TYPE_UNKNOWN;
+    par->codec_id            = AV_CODEC_ID_NONE;
+    par->format              = -1;
+    par->field_order         = AV_FIELD_UNKNOWN;
+    par->color_range         = AVCOL_RANGE_UNSPECIFIED;
+    par->color_primaries     = AVCOL_PRI_UNSPECIFIED;
+    par->color_trc           = AVCOL_TRC_UNSPECIFIED;
+    par->color_space         = AVCOL_SPC_UNSPECIFIED;
+    par->chroma_location     = AVCHROMA_LOC_UNSPECIFIED;
+    par->sample_aspect_ratio = (AVRational){ 0, 1 };
+    par->profile             = FF_PROFILE_UNKNOWN;
+    par->level               = FF_LEVEL_UNKNOWN;
+}
+
+AVCodecParameters *avcodec_parameters_alloc(void)
+{
+    AVCodecParameters *par = av_mallocz(sizeof(*par));
+
+    if (!par)
+        return NULL;
+    codec_parameters_reset(par);
+    return par;
+}
+
+void avcodec_parameters_free(AVCodecParameters **ppar)
+{
+    AVCodecParameters *par = *ppar;
+
+    if (!par)
+        return;
+    codec_parameters_reset(par);
+
+    av_freep(ppar);
+}
+
+int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
+{
+    codec_parameters_reset(dst);
+    memcpy(dst, src, sizeof(*dst));
+
+    dst->extradata      = NULL;
+    dst->extradata_size = 0;
+    if (src->extradata) {
+        dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+        if (!dst->extradata)
+            return AVERROR(ENOMEM);
+        memcpy(dst->extradata, src->extradata, src->extradata_size);
+        dst->extradata_size = src->extradata_size;
+    }
+
+    return 0;
+}
+
+int avcodec_parameters_from_context(AVCodecParameters *par,
+                                    const AVCodecContext *codec)
+{
+    codec_parameters_reset(par);
+
+    par->codec_type = codec->codec_type;
+    par->codec_id   = codec->codec_id;
+    par->codec_tag  = codec->codec_tag;
+
+    par->bit_rate              = codec->bit_rate;
+    par->bits_per_coded_sample = codec->bits_per_coded_sample;
+    par->bits_per_raw_sample   = codec->bits_per_raw_sample;
+    par->profile               = codec->profile;
+    par->level                 = codec->level;
+
+    switch (par->codec_type) {
+    case AVMEDIA_TYPE_VIDEO:
+        par->format              = codec->pix_fmt;
+        par->width               = codec->width;
+        par->height              = codec->height;
+        par->field_order         = codec->field_order;
+        par->color_range         = codec->color_range;
+        par->color_primaries     = codec->color_primaries;
+        par->color_trc           = codec->color_trc;
+        par->color_space         = codec->colorspace;
+        par->chroma_location     = codec->chroma_sample_location;
+        par->sample_aspect_ratio = codec->sample_aspect_ratio;
+        par->video_delay         = codec->has_b_frames;
+        break;
+    case AVMEDIA_TYPE_AUDIO:
+        par->format           = codec->sample_fmt;
+        par->channel_layout   = codec->channel_layout;
+        par->channels         = codec->channels;
+        par->sample_rate      = codec->sample_rate;
+        par->block_align      = codec->block_align;
+        par->frame_size       = codec->frame_size;
+        par->initial_padding  = codec->initial_padding;
+        par->trailing_padding = codec->trailing_padding;
+        par->seek_preroll     = codec->seek_preroll;
+        break;
+    case AVMEDIA_TYPE_SUBTITLE:
+        par->width  = codec->width;
+        par->height = codec->height;
+        break;
+    }
+
+    if (codec->extradata) {
+        par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+        if (!par->extradata)
+            return AVERROR(ENOMEM);
+        memcpy(par->extradata, codec->extradata, codec->extradata_size);
+        par->extradata_size = codec->extradata_size;
+    }
+
+    return 0;
+}
+
+int avcodec_parameters_to_context(AVCodecContext *codec,
+                                  const AVCodecParameters *par)
+{
+    codec->codec_type = par->codec_type;
+    codec->codec_id   = par->codec_id;
+    codec->codec_tag  = par->codec_tag;
+
+    codec->bit_rate              = par->bit_rate;
+    codec->bits_per_coded_sample = par->bits_per_coded_sample;
+    codec->bits_per_raw_sample   = par->bits_per_raw_sample;
+    codec->profile               = par->profile;
+    codec->level                 = par->level;
+
+    switch (par->codec_type) {
+    case AVMEDIA_TYPE_VIDEO:
+        codec->pix_fmt                = par->format;
+        codec->width                  = par->width;
+        codec->height                 = par->height;
+        codec->field_order            = par->field_order;
+        codec->color_range            = par->color_range;
+        codec->color_primaries        = par->color_primaries;
+        codec->color_trc              = par->color_trc;
+        codec->colorspace             = par->color_space;
+        codec->chroma_sample_location = par->chroma_location;
+        codec->sample_aspect_ratio    = par->sample_aspect_ratio;
+        codec->has_b_frames           = par->video_delay;
+        break;
+    case AVMEDIA_TYPE_AUDIO:
+        codec->sample_fmt       = par->format;
+        codec->channel_layout   = par->channel_layout;
+        codec->channels         = par->channels;
+        codec->sample_rate      = par->sample_rate;
+        codec->block_align      = par->block_align;
+        codec->frame_size       = par->frame_size;
+        codec->delay            =
+        codec->initial_padding  = par->initial_padding;
+        codec->trailing_padding = par->trailing_padding;
+        codec->seek_preroll     = par->seek_preroll;
+        break;
+    case AVMEDIA_TYPE_SUBTITLE:
+        codec->width  = par->width;
+        codec->height = par->height;
+        break;
+    }
+
+    if (par->extradata) {
+        av_freep(&codec->extradata);
+        codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+        if (!codec->extradata)
+            return AVERROR(ENOMEM);
+        memcpy(codec->extradata, par->extradata, par->extradata_size);
+        codec->extradata_size = par->extradata_size;
+    }
+
+    return 0;
+}
+
+int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
+                     void **data, size_t *sei_size)
+{
+    AVFrameSideData *side_data = NULL;
+    uint8_t *sei_data;
+
+    if (frame)
+        side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
+
+    if (!side_data) {
+        *data = NULL;
+        return 0;
+    }
+
+    *sei_size = side_data->size + 11;
+    *data = av_mallocz(*sei_size + prefix_len);
+    if (!*data)
+        return AVERROR(ENOMEM);
+    sei_data = (uint8_t*)*data + prefix_len;
+
+    // country code
+    sei_data[0] = 181;
+    sei_data[1] = 0;
+    sei_data[2] = 49;
+
+    /**
+     * 'GA94' is standard in North America for ATSC, but hard coding
+     * this style may not be the right thing to do -- other formats
+     * do exist. This information is not available in the side_data
+     * so we are going with this right now.
+     */
+    AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
+    sei_data[7] = 3;
+    sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
+    sei_data[9] = 0;
+
+    memcpy(sei_data + 10, side_data->data, side_data->size);
+
+    sei_data[side_data->size+10] = 255;
+
+    return 0;
+}
+
+int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
+{
+    AVRational framerate = avctx->framerate;
+    int bits_per_coded_sample = avctx->bits_per_coded_sample;
+    int64_t bitrate;
+
+    if (!(framerate.num && framerate.den))
+        framerate = av_inv_q(avctx->time_base);
+    if (!(framerate.num && framerate.den))
+        return 0;
+
+    if (!bits_per_coded_sample) {
+        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
+        bits_per_coded_sample = av_get_bits_per_pixel(desc);
+    }
+    bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
+              framerate.num / framerate.den;
+
+    return bitrate;
+}
+
+int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
+                                const int * array_valid_values, int default_value)
+{
+    int i = 0, ref_val;
+
+    while (1) {
+        ref_val = array_valid_values[i];
+        if (ref_val == INT_MAX)
+            break;
+        if (val == ref_val)
+            return val;
+        i++;
+    }
+    /* val is not a valid value */
+    av_log(ctx, AV_LOG_DEBUG,
+           "%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
+    return default_value;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vaapi.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vaapi.h
new file mode 100644
index 000000000..2cf7da588
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vaapi.h
@@ -0,0 +1,86 @@
+/*
+ * Video Acceleration API (shared data between FFmpeg and the video player)
+ * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
+ *
+ * Copyright (C) 2008-2009 Splitted-Desktop Systems
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VAAPI_H
+#define AVCODEC_VAAPI_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_vaapi
+ * Public libavcodec VA API header.
+ */
+
+#include <stdint.h>
+#include "libavutil/attributes.h"
+#include "version.h"
+
+#if FF_API_STRUCT_VAAPI_CONTEXT
+
+/**
+ * @defgroup lavc_codec_hwaccel_vaapi VA API Decoding
+ * @ingroup lavc_codec_hwaccel
+ * @{
+ */
+
+/**
+ * This structure is used to share data between the FFmpeg library and
+ * the client video application.
+ * This shall be zero-allocated and available as
+ * AVCodecContext.hwaccel_context. All user members can be set once
+ * during initialization or through each AVCodecContext.get_buffer()
+ * function call. In any case, they must be valid prior to calling
+ * decoding functions.
+ *
+ * Deprecated: use AVCodecContext.hw_frames_ctx instead.
+ */
+struct attribute_deprecated vaapi_context {
+    /**
+     * Window system dependent data
+     *
+     * - encoding: unused
+     * - decoding: Set by user
+     */
+    void *display;
+
+    /**
+     * Configuration ID
+     *
+     * - encoding: unused
+     * - decoding: Set by user
+     */
+    uint32_t config_id;
+
+    /**
+     * Context ID (video decode pipeline)
+     *
+     * - encoding: unused
+     * - decoding: Set by user
+     */
+    uint32_t context_id;
+};
+
+/* @} */
+
+#endif /* FF_API_STRUCT_VAAPI_CONTEXT */
+
+#endif /* AVCODEC_VAAPI_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vdpau.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vdpau.h
new file mode 100644
index 000000000..4d9994336
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vdpau.h
@@ -0,0 +1,176 @@
+/*
+ * The Video Decode and Presentation API for UNIX (VDPAU) is used for
+ * hardware-accelerated decoding of MPEG-1/2, H.264 and VC-1.
+ *
+ * Copyright (C) 2008 NVIDIA
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VDPAU_H
+#define AVCODEC_VDPAU_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_vdpau
+ * Public libavcodec VDPAU header.
+ */
+
+
+/**
+ * @defgroup lavc_codec_hwaccel_vdpau VDPAU Decoder and Renderer
+ * @ingroup lavc_codec_hwaccel
+ *
+ * VDPAU hardware acceleration has two modules
+ * - VDPAU decoding
+ * - VDPAU presentation
+ *
+ * The VDPAU decoding module parses all headers using FFmpeg
+ * parsing mechanisms and uses VDPAU for the actual decoding.
+ *
+ * As per the current implementation, the actual decoding
+ * and rendering (API calls) are done as part of the VDPAU
+ * presentation (vo_vdpau.c) module.
+ *
+ * @{
+ */
+
+#include <vdpau/vdpau.h>
+
+#include "libavutil/avconfig.h"
+#include "libavutil/attributes.h"
+
+#include "avcodec.h"
+#include "version.h"
+
+struct AVCodecContext;
+struct AVFrame;
+
+typedef int (*AVVDPAU_Render2)(struct AVCodecContext *, struct AVFrame *,
+                               const VdpPictureInfo *, uint32_t,
+                               const VdpBitstreamBuffer *);
+
+/**
+ * This structure is used to share data between the libavcodec library and
+ * the client video application.
+ * The user shall allocate the structure via the av_alloc_vdpau_hwaccel
+ * function and make it available as
+ * AVCodecContext.hwaccel_context. Members can be set by the user once
+ * during initialization or through each AVCodecContext.get_buffer()
+ * function call. In any case, they must be valid prior to calling
+ * decoding functions.
+ *
+ * The size of this structure is not a part of the public ABI and must not
+ * be used outside of libavcodec. Use av_vdpau_alloc_context() to allocate an
+ * AVVDPAUContext.
+ */
+typedef struct AVVDPAUContext {
+    /**
+     * VDPAU decoder handle
+     *
+     * Set by user.
+     */
+    VdpDecoder decoder;
+
+    /**
+     * VDPAU decoder render callback
+     *
+     * Set by the user.
+     */
+    VdpDecoderRender *render;
+
+    AVVDPAU_Render2 render2;
+} AVVDPAUContext;
+
+/**
+ * @brief allocation function for AVVDPAUContext
+ *
+ * Allows extending the struct without breaking API/ABI
+ */
+AVVDPAUContext *av_alloc_vdpaucontext(void);
+
+AVVDPAU_Render2 av_vdpau_hwaccel_get_render2(const AVVDPAUContext *);
+void av_vdpau_hwaccel_set_render2(AVVDPAUContext *, AVVDPAU_Render2);
+
+/**
+ * Associate a VDPAU device with a codec context for hardware acceleration.
+ * This function is meant to be called from the get_format() codec callback,
+ * or earlier. It can also be called after avcodec_flush_buffers() to change
+ * the underlying VDPAU device mid-stream (e.g. to recover from non-transparent
+ * display preemption).
+ *
+ * @note get_format() must return AV_PIX_FMT_VDPAU if this function completes
+ * successfully.
+ *
+ * @param avctx decoding context whose get_format() callback is invoked
+ * @param device VDPAU device handle to use for hardware acceleration
+ * @param get_proc_address VDPAU device driver
+ * @param flags zero of more OR'd AV_HWACCEL_FLAG_* flags
+ *
+ * @return 0 on success, an AVERROR code on failure.
+ */
+int av_vdpau_bind_context(AVCodecContext *avctx, VdpDevice device,
+                          VdpGetProcAddress *get_proc_address, unsigned flags);
+
+/**
+ * Gets the parameters to create an adequate VDPAU video surface for the codec
+ * context using VDPAU hardware decoding acceleration.
+ *
+ * @note Behavior is undefined if the context was not successfully bound to a
+ * VDPAU device using av_vdpau_bind_context().
+ *
+ * @param avctx the codec context being used for decoding the stream
+ * @param type storage space for the VDPAU video surface chroma type
+ *              (or NULL to ignore)
+ * @param width storage space for the VDPAU video surface pixel width
+ *              (or NULL to ignore)
+ * @param height storage space for the VDPAU video surface pixel height
+ *              (or NULL to ignore)
+ *
+ * @return 0 on success, a negative AVERROR code on failure.
+ */
+int av_vdpau_get_surface_parameters(AVCodecContext *avctx, VdpChromaType *type,
+                                    uint32_t *width, uint32_t *height);
+
+/**
+ * Allocate an AVVDPAUContext.
+ *
+ * @return Newly-allocated AVVDPAUContext or NULL on failure.
+ */
+AVVDPAUContext *av_vdpau_alloc_context(void);
+
+#if FF_API_VDPAU_PROFILE
+/**
+ * Get a decoder profile that should be used for initializing a VDPAU decoder.
+ * Should be called from the AVCodecContext.get_format() callback.
+ *
+ * @deprecated Use av_vdpau_bind_context() instead.
+ *
+ * @param avctx the codec context being used for decoding the stream
+ * @param profile a pointer into which the result will be written on success.
+ *                The contents of profile are undefined if this function returns
+ *                an error.
+ *
+ * @return 0 on success (non-negative), a negative AVERROR on failure.
+ */
+attribute_deprecated
+int av_vdpau_get_profile(AVCodecContext *avctx, VdpDecoderProfile *profile);
+#endif
+
+/* @}*/
+
+#endif /* AVCODEC_VDPAU_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/version.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/version.h
new file mode 100644
index 000000000..3331d4730
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/version.h
@@ -0,0 +1,140 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VERSION_H
+#define AVCODEC_VERSION_H
+
+/**
+ * @file
+ * @ingroup libavc
+ * Libavcodec version macros.
+ */
+
+#include "libavutil/version.h"
+
+#define LIBAVCODEC_VERSION_MAJOR  58
+#define LIBAVCODEC_VERSION_MINOR  54
+#define LIBAVCODEC_VERSION_MICRO 100
+
+#define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
+                                               LIBAVCODEC_VERSION_MINOR, \
+                                               LIBAVCODEC_VERSION_MICRO)
+#define LIBAVCODEC_VERSION      AV_VERSION(LIBAVCODEC_VERSION_MAJOR,    \
+                                           LIBAVCODEC_VERSION_MINOR,    \
+                                           LIBAVCODEC_VERSION_MICRO)
+#define LIBAVCODEC_BUILD        LIBAVCODEC_VERSION_INT
+
+#define LIBAVCODEC_IDENT        "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
+
+/**
+ * FF_API_* defines may be placed below to indicate public API that will be
+ * dropped at a future version bump. The defines themselves are not part of
+ * the public API and may change, break or disappear at any time.
+ *
+ * @note, when bumping the major version it is recommended to manually
+ * disable each FF_API_* in its own commit instead of disabling them all
+ * at once through the bump. This improves the git bisect-ability of the change.
+ */
+
+#ifndef FF_API_LOWRES
+#define FF_API_LOWRES            (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_DEBUG_MV
+#define FF_API_DEBUG_MV          (LIBAVCODEC_VERSION_MAJOR < 58)
+#endif
+#ifndef FF_API_AVCTX_TIMEBASE
+#define FF_API_AVCTX_TIMEBASE    (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_CODED_FRAME
+#define FF_API_CODED_FRAME       (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_SIDEDATA_ONLY_PKT
+#define FF_API_SIDEDATA_ONLY_PKT (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_VDPAU_PROFILE
+#define FF_API_VDPAU_PROFILE     (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_CONVERGENCE_DURATION
+#define FF_API_CONVERGENCE_DURATION (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_AVPICTURE
+#define FF_API_AVPICTURE         (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_AVPACKET_OLD_API
+#define FF_API_AVPACKET_OLD_API (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_RTP_CALLBACK
+#define FF_API_RTP_CALLBACK      (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_VBV_DELAY
+#define FF_API_VBV_DELAY         (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_CODER_TYPE
+#define FF_API_CODER_TYPE        (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_STAT_BITS
+#define FF_API_STAT_BITS         (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_PRIVATE_OPT
+#define FF_API_PRIVATE_OPT      (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_ASS_TIMING
+#define FF_API_ASS_TIMING       (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_OLD_BSF
+#define FF_API_OLD_BSF          (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_COPY_CONTEXT
+#define FF_API_COPY_CONTEXT     (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_GET_CONTEXT_DEFAULTS
+#define FF_API_GET_CONTEXT_DEFAULTS (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_NVENC_OLD_NAME
+#define FF_API_NVENC_OLD_NAME    (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_STRUCT_VAAPI_CONTEXT
+#define FF_API_STRUCT_VAAPI_CONTEXT (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_MERGE_SD_API
+#define FF_API_MERGE_SD_API      (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_TAG_STRING
+#define FF_API_TAG_STRING        (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_GETCHROMA
+#define FF_API_GETCHROMA         (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_CODEC_GET_SET
+#define FF_API_CODEC_GET_SET     (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_USER_VISIBLE_AVHWACCEL
+#define FF_API_USER_VISIBLE_AVHWACCEL (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_LOCKMGR
+#define FF_API_LOCKMGR (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_NEXT
+#define FF_API_NEXT              (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+#ifndef FF_API_UNSANITIZED_BITRATES
+#define FF_API_UNSANITIZED_BITRATES (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
+
+
+#endif /* AVCODEC_VERSION_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/videodsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/videodsp.c
new file mode 100644
index 000000000..ce9e9eb14
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/videodsp.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2012 Ronald S. Bultje
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
+#include "libavutil/common.h"
+#include "videodsp.h"
+
+#define BIT_DEPTH 8
+#include "videodsp_template.c"
+#undef BIT_DEPTH
+
+#define BIT_DEPTH 16
+#include "videodsp_template.c"
+#undef BIT_DEPTH
+
+static void just_return(uint8_t *buf, ptrdiff_t stride, int h)
+{
+}
+
+av_cold void ff_videodsp_init(VideoDSPContext *ctx, int bpc)
+{
+    ctx->prefetch = just_return;
+    if (bpc <= 8) {
+        ctx->emulated_edge_mc = ff_emulated_edge_mc_8;
+    } else {
+        ctx->emulated_edge_mc = ff_emulated_edge_mc_16;
+    }
+
+    if (ARCH_AARCH64)
+        ff_videodsp_init_aarch64(ctx, bpc);
+    if (ARCH_ARM)
+        ff_videodsp_init_arm(ctx, bpc);
+    if (ARCH_PPC)
+        ff_videodsp_init_ppc(ctx, bpc);
+    if (ARCH_X86)
+        ff_videodsp_init_x86(ctx, bpc);
+    if (ARCH_MIPS)
+        ff_videodsp_init_mips(ctx, bpc);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/videodsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/videodsp.h
new file mode 100644
index 000000000..c0545f22b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/videodsp.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2012 Ronald S. Bultje
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Core video DSP helper functions
+ */
+
+#ifndef AVCODEC_VIDEODSP_H
+#define AVCODEC_VIDEODSP_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define EMULATED_EDGE(depth) \
+void ff_emulated_edge_mc_ ## depth(uint8_t *dst, const uint8_t *src, \
+                                   ptrdiff_t dst_stride, ptrdiff_t src_stride, \
+                                   int block_w, int block_h,\
+                                   int src_x, int src_y, int w, int h);
+
+EMULATED_EDGE(8)
+EMULATED_EDGE(16)
+
+typedef struct VideoDSPContext {
+    /**
+     * Copy a rectangular area of samples to a temporary buffer and replicate
+     * the border samples.
+     *
+     * @param dst destination buffer
+     * @param dst_stride number of bytes between 2 vertically adjacent samples
+     *                   in destination buffer
+     * @param src source buffer
+     * @param dst_linesize number of bytes between 2 vertically adjacent
+     *                     samples in the destination buffer
+     * @param src_linesize number of bytes between 2 vertically adjacent
+     *                     samples in both the source buffer
+     * @param block_w width of block
+     * @param block_h height of block
+     * @param src_x x coordinate of the top left sample of the block in the
+     *                source buffer
+     * @param src_y y coordinate of the top left sample of the block in the
+     *                source buffer
+     * @param w width of the source buffer
+     * @param h height of the source buffer
+     */
+    void (*emulated_edge_mc)(uint8_t *dst, const uint8_t *src,
+                             ptrdiff_t dst_linesize,
+                             ptrdiff_t src_linesize,
+                             int block_w, int block_h,
+                             int src_x, int src_y, int w, int h);
+
+    /**
+     * Prefetch memory into cache (if supported by hardware).
+     *
+     * @param buf    pointer to buffer to prefetch memory from
+     * @param stride distance between two lines of buf (in bytes)
+     * @param h      number of lines to prefetch
+     */
+    void (*prefetch)(uint8_t *buf, ptrdiff_t stride, int h);
+} VideoDSPContext;
+
+void ff_videodsp_init(VideoDSPContext *ctx, int bpc);
+
+/* for internal use only (i.e. called by ff_videodsp_init() */
+void ff_videodsp_init_aarch64(VideoDSPContext *ctx, int bpc);
+void ff_videodsp_init_arm(VideoDSPContext *ctx, int bpc);
+void ff_videodsp_init_ppc(VideoDSPContext *ctx, int bpc);
+void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc);
+void ff_videodsp_init_mips(VideoDSPContext *ctx, int bpc);
+
+#endif /* AVCODEC_VIDEODSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/videotoolbox.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/videotoolbox.h
new file mode 100644
index 000000000..af2db0d58
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/videotoolbox.h
@@ -0,0 +1,127 @@
+/*
+ * Videotoolbox hardware acceleration
+ *
+ * copyright (c) 2012 Sebastien Zwickert
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VIDEOTOOLBOX_H
+#define AVCODEC_VIDEOTOOLBOX_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_videotoolbox
+ * Public libavcodec Videotoolbox header.
+ */
+
+#include <stdint.h>
+
+#define Picture QuickdrawPicture
+#include <VideoToolbox/VideoToolbox.h>
+#undef Picture
+
+#include "libavcodec/avcodec.h"
+
+/**
+ * This struct holds all the information that needs to be passed
+ * between the caller and libavcodec for initializing Videotoolbox decoding.
+ * Its size is not a part of the public ABI, it must be allocated with
+ * av_videotoolbox_alloc_context() and freed with av_free().
+ */
+typedef struct AVVideotoolboxContext {
+    /**
+     * Videotoolbox decompression session object.
+     * Created and freed the caller.
+     */
+    VTDecompressionSessionRef session;
+
+    /**
+     * The output callback that must be passed to the session.
+     * Set by av_videottoolbox_default_init()
+     */
+    VTDecompressionOutputCallback output_callback;
+
+    /**
+     * CVPixelBuffer Format Type that Videotoolbox will use for decoded frames.
+     * set by the caller. If this is set to 0, then no specific format is
+     * requested from the decoder, and its native format is output.
+     */
+    OSType cv_pix_fmt_type;
+
+    /**
+     * CoreMedia Format Description that Videotoolbox will use to create the decompression session.
+     * Set by the caller.
+     */
+    CMVideoFormatDescriptionRef cm_fmt_desc;
+
+    /**
+     * CoreMedia codec type that Videotoolbox will use to create the decompression session.
+     * Set by the caller.
+     */
+    int cm_codec_type;
+} AVVideotoolboxContext;
+
+/**
+ * Allocate and initialize a Videotoolbox context.
+ *
+ * This function should be called from the get_format() callback when the caller
+ * selects the AV_PIX_FMT_VIDETOOLBOX format. The caller must then create
+ * the decoder object (using the output callback provided by libavcodec) that
+ * will be used for Videotoolbox-accelerated decoding.
+ *
+ * When decoding with Videotoolbox is finished, the caller must destroy the decoder
+ * object and free the Videotoolbox context using av_free().
+ *
+ * @return the newly allocated context or NULL on failure
+ */
+AVVideotoolboxContext *av_videotoolbox_alloc_context(void);
+
+/**
+ * This is a convenience function that creates and sets up the Videotoolbox context using
+ * an internal implementation.
+ *
+ * @param avctx the corresponding codec context
+ *
+ * @return >= 0 on success, a negative AVERROR code on failure
+ */
+int av_videotoolbox_default_init(AVCodecContext *avctx);
+
+/**
+ * This is a convenience function that creates and sets up the Videotoolbox context using
+ * an internal implementation.
+ *
+ * @param avctx the corresponding codec context
+ * @param vtctx the Videotoolbox context to use
+ *
+ * @return >= 0 on success, a negative AVERROR code on failure
+ */
+int av_videotoolbox_default_init2(AVCodecContext *avctx, AVVideotoolboxContext *vtctx);
+
+/**
+ * This function must be called to free the Videotoolbox context initialized with
+ * av_videotoolbox_default_init().
+ *
+ * @param avctx the corresponding codec context
+ */
+void av_videotoolbox_default_free(AVCodecContext *avctx);
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_VIDEOTOOLBOX_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vlc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vlc.h
new file mode 100644
index 000000000..42ccddf3f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vlc.h
@@ -0,0 +1,81 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VLC_H
+#define AVCODEC_VLC_H
+
+#include <stdint.h>
+
+#define VLC_TYPE int16_t
+
+typedef struct VLC {
+    int bits;
+    VLC_TYPE (*table)[2]; ///< code, bits
+    int table_size, table_allocated;
+} VLC;
+
+typedef struct RL_VLC_ELEM {
+    int16_t level;
+    int8_t len;
+    uint8_t run;
+} RL_VLC_ELEM;
+
+#define init_vlc(vlc, nb_bits, nb_codes,                \
+                 bits, bits_wrap, bits_size,            \
+                 codes, codes_wrap, codes_size,         \
+                 flags)                                 \
+    ff_init_vlc_sparse(vlc, nb_bits, nb_codes,          \
+                       bits, bits_wrap, bits_size,      \
+                       codes, codes_wrap, codes_size,   \
+                       NULL, 0, 0, flags)
+
+int ff_init_vlc_sparse(VLC *vlc, int nb_bits, int nb_codes,
+                       const void *bits, int bits_wrap, int bits_size,
+                       const void *codes, int codes_wrap, int codes_size,
+                       const void *symbols, int symbols_wrap, int symbols_size,
+                       int flags);
+void ff_free_vlc(VLC *vlc);
+
+#define INIT_VLC_LE             2
+#define INIT_VLC_USE_NEW_STATIC 4
+
+#define INIT_VLC_SPARSE_STATIC(vlc, bits, a, b, c, d, e, f, g, h, i, j, static_size) \
+    do {                                                                   \
+        static VLC_TYPE table[static_size][2];                             \
+        (vlc)->table           = table;                                    \
+        (vlc)->table_allocated = static_size;                              \
+        ff_init_vlc_sparse(vlc, bits, a, b, c, d, e, f, g, h, i, j,        \
+            INIT_VLC_USE_NEW_STATIC);                                      \
+    } while (0)
+
+#define INIT_LE_VLC_SPARSE_STATIC(vlc, bits, a, b, c, d, e, f, g, h, i, j, static_size) \
+    do {                                                                   \
+        static VLC_TYPE table[static_size][2];                             \
+        (vlc)->table           = table;                                    \
+        (vlc)->table_allocated = static_size;                              \
+        ff_init_vlc_sparse(vlc, bits, a, b, c, d, e, f, g, h, i, j,        \
+            INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);                        \
+    } while (0)
+
+#define INIT_VLC_STATIC(vlc, bits, a, b, c, d, e, f, g, static_size)       \
+    INIT_VLC_SPARSE_STATIC(vlc, bits, a, b, c, d, e, f, g, NULL, 0, 0, static_size)
+
+#define INIT_LE_VLC_STATIC(vlc, bits, a, b, c, d, e, f, g, static_size) \
+    INIT_LE_VLC_SPARSE_STATIC(vlc, bits, a, b, c, d, e, f, g, NULL, 0, 0, static_size)
+
+#endif /* AVCODEC_VLC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis.c
new file mode 100644
index 000000000..cca2aa7c6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis.c
@@ -0,0 +1,218 @@
+/**
+ * @file
+ * Common code for Vorbis I encoder and decoder
+ * @author Denes Balatoni  ( dbalatoni programozo hu )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Common code for Vorbis I encoder and decoder
+ * @author Denes Balatoni  ( dbalatoni programozo hu )
+ */
+
+#include "libavutil/common.h"
+
+#include "avcodec.h"
+#include "vorbis.h"
+
+
+/* Helper functions */
+
+// x^(1/n)
+unsigned int ff_vorbis_nth_root(unsigned int x, unsigned int n)
+{
+    unsigned int ret = 0, i, j;
+
+    do {
+        ++ret;
+        for (i = 0, j = ret; i < n - 1; i++)
+            j *= ret;
+    } while (j <= x);
+
+    return ret - 1;
+}
+
+// Generate vlc codes from vorbis huffman code lengths
+
+// the two bits[p] > 32 checks should be redundant, all calling code should
+// already ensure that, but since it allows overwriting the stack it seems
+// reasonable to check redundantly.
+int ff_vorbis_len2vlc(uint8_t *bits, uint32_t *codes, unsigned num)
+{
+    uint32_t exit_at_level[33] = { 404 };
+    unsigned i, j, p, code;
+
+    for (p = 0; (p < num) && (bits[p] == 0); ++p)
+        ;
+    if (p == num)
+        return 0;
+
+    codes[p] = 0;
+    if (bits[p] > 32)
+        return AVERROR_INVALIDDATA;
+    for (i = 0; i < bits[p]; ++i)
+        exit_at_level[i+1] = 1u << i;
+
+    ++p;
+
+    for (i = p; (i < num) && (bits[i] == 0); ++i)
+        ;
+    if (i == num)
+        return 0;
+
+    for (; p < num; ++p) {
+        if (bits[p] > 32)
+             return AVERROR_INVALIDDATA;
+        if (bits[p] == 0)
+             continue;
+        // find corresponding exit(node which the tree can grow further from)
+        for (i = bits[p]; i > 0; --i)
+            if (exit_at_level[i])
+                break;
+        if (!i) // overspecified tree
+             return AVERROR_INVALIDDATA;
+        code = exit_at_level[i];
+        exit_at_level[i] = 0;
+        // construct code (append 0s to end) and introduce new exits
+        for (j = i + 1 ;j <= bits[p]; ++j)
+            exit_at_level[j] = code + (1u << (j - 1));
+        codes[p] = code;
+    }
+
+    //no exits should be left (underspecified tree - ie. unused valid vlcs - not allowed by SPEC)
+    for (p = 1; p < 33; p++)
+        if (exit_at_level[p])
+            return AVERROR_INVALIDDATA;
+
+    return 0;
+}
+
+int ff_vorbis_ready_floor1_list(AVCodecContext *avctx,
+                                vorbis_floor1_entry *list, int values)
+{
+    int i;
+    list[0].sort = 0;
+    list[1].sort = 1;
+    for (i = 2; i < values; i++) {
+        int j;
+        list[i].low  = 0;
+        list[i].high = 1;
+        list[i].sort = i;
+        for (j = 2; j < i; j++) {
+            int tmp = list[j].x;
+            if (tmp < list[i].x) {
+                if (tmp > list[list[i].low].x)
+                    list[i].low  =  j;
+            } else {
+                if (tmp < list[list[i].high].x)
+                    list[i].high = j;
+            }
+        }
+    }
+    for (i = 0; i < values - 1; i++) {
+        int j;
+        for (j = i + 1; j < values; j++) {
+            if (list[i].x == list[j].x) {
+                av_log(avctx, AV_LOG_ERROR,
+                       "Duplicate value found in floor 1 X coordinates\n");
+                return AVERROR_INVALIDDATA;
+            }
+            if (list[list[i].sort].x > list[list[j].sort].x) {
+                int tmp = list[i].sort;
+                list[i].sort = list[j].sort;
+                list[j].sort = tmp;
+            }
+        }
+    }
+    return 0;
+}
+
+static inline void render_line_unrolled(intptr_t x, int y, int x1,
+                                        intptr_t sy, int ady, int adx,
+                                        float *buf)
+{
+    int err = -adx;
+    x -= x1 - 1;
+    buf += x1 - 1;
+    while (++x < 0) {
+        err += ady;
+        if (err >= 0) {
+            err += ady - adx;
+            y   += sy;
+            buf[x++] = ff_vorbis_floor1_inverse_db_table[av_clip_uint8(y)];
+        }
+        buf[x] = ff_vorbis_floor1_inverse_db_table[av_clip_uint8(y)];
+    }
+    if (x <= 0) {
+        if (err + ady >= 0)
+            y += sy;
+        buf[x] = ff_vorbis_floor1_inverse_db_table[av_clip_uint8(y)];
+    }
+}
+
+static void render_line(int x0, int y0, int x1, int y1, float *buf)
+{
+    int dy  = y1 - y0;
+    int adx = x1 - x0;
+    int ady = FFABS(dy);
+    int sy  = dy < 0 ? -1 : 1;
+    buf[x0] = ff_vorbis_floor1_inverse_db_table[av_clip_uint8(y0)];
+    if (ady*2 <= adx) { // optimized common case
+        render_line_unrolled(x0, y0, x1, sy, ady, adx, buf);
+    } else {
+        int base  = dy / adx;
+        int x     = x0;
+        int y     = y0;
+        int err   = -adx;
+        ady -= FFABS(base) * adx;
+        while (++x < x1) {
+            y += base;
+            err += ady;
+            if (err >= 0) {
+                err -= adx;
+                y   += sy;
+            }
+            buf[x] = ff_vorbis_floor1_inverse_db_table[av_clip_uint8(y)];
+        }
+    }
+}
+
+void ff_vorbis_floor1_render_list(vorbis_floor1_entry * list, int values,
+                                  uint16_t *y_list, int *flag,
+                                  int multiplier, float *out, int samples)
+{
+    int lx, ly, i;
+    lx = 0;
+    ly = y_list[0] * multiplier;
+    for (i = 1; i < values; i++) {
+        int pos = list[i].sort;
+        if (flag[pos]) {
+            int x1 = list[pos].x;
+            int y1 = y_list[pos] * multiplier;
+            if (lx < samples)
+                render_line(lx, ly, FFMIN(x1,samples), y1, out);
+            lx = x1;
+            ly = y1;
+        }
+        if (lx >= samples)
+            break;
+    }
+    if (lx < samples)
+        render_line(lx, ly, samples, ly, out);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis.h
new file mode 100644
index 000000000..98dd14f9d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis.h
@@ -0,0 +1,50 @@
+/*
+ * copyright (c) 2006 Oded Shimon <ods15@ods15.dyndns.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VORBIS_H
+#define AVCODEC_VORBIS_H
+
+#include "avcodec.h"
+
+extern const float ff_vorbis_floor1_inverse_db_table[256];
+extern const float * const ff_vorbis_vwin[8];
+extern const uint8_t ff_vorbis_channel_layout_offsets[8][8];
+extern const uint8_t ff_vorbis_encoding_channel_layout_offsets[8][8];
+extern const uint64_t ff_vorbis_channel_layouts[9];
+
+typedef struct vorbis_floor1_entry {
+    uint16_t x;
+    uint16_t sort;
+    uint16_t low;
+    uint16_t high;
+} vorbis_floor1_entry;
+
+int ff_vorbis_ready_floor1_list(AVCodecContext *avctx,
+                                vorbis_floor1_entry *list, int values);
+unsigned int ff_vorbis_nth_root(unsigned int x, unsigned int n); // x^(1/n)
+int ff_vorbis_len2vlc(uint8_t *bits, uint32_t *codes, unsigned num);
+void ff_vorbis_floor1_render_list(vorbis_floor1_entry * list, int values,
+                                  uint16_t *y_list, int *flag,
+                                  int multiplier, float * out, int samples);
+void ff_vorbis_inverse_coupling(float *mag, float *ang, intptr_t blocksize);
+
+#define ilog(i) av_log2(2*(i))
+
+#endif /* AVCODEC_VORBIS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_data.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_data.c
new file mode 100644
index 000000000..063a075ce
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_data.c
@@ -0,0 +1,2193 @@
+/*
+ * copyright (c) 2005 Denes Balatoni ( dbalatoni programozo hu )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/channel_layout.h"
+#include "libavutil/mem.h"
+#include "vorbis.h"
+
+const uint8_t ff_vorbis_channel_layout_offsets[8][8] = {
+    { 0 },
+    { 0, 1 },
+    { 0, 2, 1 },
+    { 0, 1, 2, 3 },
+    { 0, 2, 1, 3, 4 },
+    { 0, 2, 1, 5, 3, 4 },
+    { 0, 2, 1, 6, 5, 3, 4 },
+    { 0, 2, 1, 7, 5, 6, 3, 4 },
+};
+
+const uint8_t ff_vorbis_encoding_channel_layout_offsets[8][8] = {
+    { 0 },
+    { 0, 1 },
+    { 0, 2, 1 },
+    { 0, 1, 2, 3 },
+    { 0, 2, 1, 3, 4 },
+    { 0, 2, 1, 4, 5, 3 },
+    { 0, 2, 1, 5, 6, 4, 3 },
+    { 0, 2, 1, 6, 7, 4, 5, 3 },
+};
+
+const uint64_t ff_vorbis_channel_layouts[9] = {
+    AV_CH_LAYOUT_MONO,
+    AV_CH_LAYOUT_STEREO,
+    AV_CH_LAYOUT_SURROUND,
+    AV_CH_LAYOUT_QUAD,
+    AV_CH_LAYOUT_5POINT0_BACK,
+    AV_CH_LAYOUT_5POINT1_BACK,
+    AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER,
+    AV_CH_LAYOUT_7POINT1,
+    0
+};
+
+DECLARE_ALIGNED(16, static const float, vwin64)[32] = {
+    0.0009460463F, 0.0085006468F, 0.0235352254F, 0.0458950567F,
+    0.0753351908F, 0.1115073077F, 0.1539457973F, 0.2020557475F,
+    0.2551056759F, 0.3122276645F, 0.3724270287F, 0.4346027792F,
+    0.4975789974F, 0.5601459521F, 0.6211085051F, 0.6793382689F,
+    0.7338252629F, 0.7837245849F, 0.8283939355F, 0.8674186656F,
+    0.9006222429F, 0.9280614787F, 0.9500073081F, 0.9669131782F,
+    0.9793740220F, 0.9880792941F, 0.9937636139F, 0.9971582668F,
+    0.9989462667F, 0.9997230082F, 0.9999638688F, 0.9999995525F,
+};
+
+DECLARE_ALIGNED(16, static const float, vwin128)[64] = {
+    0.0002365472F, 0.0021280687F, 0.0059065254F, 0.0115626550F,
+    0.0190823442F, 0.0284463735F, 0.0396300935F, 0.0526030430F,
+    0.0673285281F, 0.0837631763F, 0.1018564887F, 0.1215504095F,
+    0.1427789367F, 0.1654677960F, 0.1895342001F, 0.2148867160F,
+    0.2414252576F, 0.2690412240F, 0.2976177952F, 0.3270303960F,
+    0.3571473350F, 0.3878306189F, 0.4189369387F, 0.4503188188F,
+    0.4818259135F, 0.5133064334F, 0.5446086751F, 0.5755826278F,
+    0.6060816248F, 0.6359640047F, 0.6650947483F, 0.6933470543F,
+    0.7206038179F, 0.7467589810F, 0.7717187213F, 0.7954024542F,
+    0.8177436264F, 0.8386902831F, 0.8582053981F, 0.8762669622F,
+    0.8928678298F, 0.9080153310F, 0.9217306608F, 0.9340480615F,
+    0.9450138200F, 0.9546851041F, 0.9631286621F, 0.9704194171F,
+    0.9766389810F, 0.9818741197F, 0.9862151938F, 0.9897546035F,
+    0.9925852598F, 0.9947991032F, 0.9964856900F, 0.9977308602F,
+    0.9986155015F, 0.9992144193F, 0.9995953200F, 0.9998179155F,
+    0.9999331503F, 0.9999825563F, 0.9999977357F, 0.9999999720F,
+};
+
+DECLARE_ALIGNED(16, static const float, vwin256)[128] = {
+    0.0000591390F, 0.0005321979F, 0.0014780301F, 0.0028960636F,
+    0.0047854363F, 0.0071449926F, 0.0099732775F, 0.0132685298F,
+    0.0170286741F, 0.0212513119F, 0.0259337111F, 0.0310727950F,
+    0.0366651302F, 0.0427069140F, 0.0491939614F, 0.0561216907F,
+    0.0634851102F, 0.0712788035F, 0.0794969160F, 0.0881331402F,
+    0.0971807028F, 0.1066323515F, 0.1164803426F, 0.1267164297F,
+    0.1373318534F, 0.1483173323F, 0.1596630553F, 0.1713586755F,
+    0.1833933062F, 0.1957555184F, 0.2084333404F, 0.2214142599F,
+    0.2346852280F, 0.2482326664F, 0.2620424757F, 0.2761000481F,
+    0.2903902813F, 0.3048975959F, 0.3196059553F, 0.3344988887F,
+    0.3495595160F, 0.3647705766F, 0.3801144597F, 0.3955732382F,
+    0.4111287047F, 0.4267624093F, 0.4424557009F, 0.4581897696F,
+    0.4739456913F, 0.4897044744F, 0.5054471075F, 0.5211546088F,
+    0.5368080763F, 0.5523887395F, 0.5678780103F, 0.5832575361F,
+    0.5985092508F, 0.6136154277F, 0.6285587300F, 0.6433222619F,
+    0.6578896175F, 0.6722449294F, 0.6863729144F, 0.7002589187F,
+    0.7138889597F, 0.7272497662F, 0.7403288154F, 0.7531143679F,
+    0.7655954985F, 0.7777621249F, 0.7896050322F, 0.8011158947F,
+    0.8122872932F, 0.8231127294F, 0.8335866365F, 0.8437043850F,
+    0.8534622861F, 0.8628575905F, 0.8718884835F, 0.8805540765F,
+    0.8888543947F, 0.8967903616F, 0.9043637797F, 0.9115773078F,
+    0.9184344360F, 0.9249394562F, 0.9310974312F, 0.9369141608F,
+    0.9423961446F, 0.9475505439F, 0.9523851406F, 0.9569082947F,
+    0.9611289005F, 0.9650563408F, 0.9687004405F, 0.9720714191F,
+    0.9751798427F, 0.9780365753F, 0.9806527301F, 0.9830396204F,
+    0.9852087111F, 0.9871715701F, 0.9889398207F, 0.9905250941F,
+    0.9919389832F, 0.9931929973F, 0.9942985174F, 0.9952667537F,
+    0.9961087037F, 0.9968351119F, 0.9974564312F, 0.9979827858F,
+    0.9984239359F, 0.9987892441F, 0.9990876435F, 0.9993276081F,
+    0.9995171241F, 0.9996636648F, 0.9997741654F, 0.9998550016F,
+    0.9999119692F, 0.9999502656F, 0.9999744742F, 0.9999885497F,
+    0.9999958064F, 0.9999989077F, 0.9999998584F, 0.9999999983F,
+};
+
+DECLARE_ALIGNED(16, static const float, vwin512)[256] = {
+    0.0000147849F, 0.0001330607F, 0.0003695946F, 0.0007243509F,
+    0.0011972759F, 0.0017882983F, 0.0024973285F, 0.0033242588F,
+    0.0042689632F, 0.0053312973F, 0.0065110982F, 0.0078081841F,
+    0.0092223540F, 0.0107533880F, 0.0124010466F, 0.0141650703F,
+    0.0160451800F, 0.0180410758F, 0.0201524373F, 0.0223789233F,
+    0.0247201710F, 0.0271757958F, 0.0297453914F, 0.0324285286F,
+    0.0352247556F, 0.0381335972F, 0.0411545545F, 0.0442871045F,
+    0.0475306997F, 0.0508847676F, 0.0543487103F, 0.0579219038F,
+    0.0616036982F, 0.0653934164F, 0.0692903546F, 0.0732937809F,
+    0.0774029356F, 0.0816170305F, 0.0859352485F, 0.0903567428F,
+    0.0948806375F, 0.0995060259F, 0.1042319712F, 0.1090575056F,
+    0.1139816300F, 0.1190033137F, 0.1241214941F, 0.1293350764F,
+    0.1346429333F, 0.1400439046F, 0.1455367974F, 0.1511203852F,
+    0.1567934083F, 0.1625545735F, 0.1684025537F, 0.1743359881F,
+    0.1803534820F, 0.1864536069F, 0.1926349000F, 0.1988958650F,
+    0.2052349715F, 0.2116506555F, 0.2181413191F, 0.2247053313F,
+    0.2313410275F, 0.2380467105F, 0.2448206500F, 0.2516610835F,
+    0.2585662164F, 0.2655342226F, 0.2725632448F, 0.2796513950F,
+    0.2867967551F, 0.2939973773F, 0.3012512852F, 0.3085564739F,
+    0.3159109111F, 0.3233125375F, 0.3307592680F, 0.3382489922F,
+    0.3457795756F, 0.3533488602F, 0.3609546657F, 0.3685947904F,
+    0.3762670121F, 0.3839690896F, 0.3916987634F, 0.3994537572F,
+    0.4072317788F, 0.4150305215F, 0.4228476653F, 0.4306808783F,
+    0.4385278181F, 0.4463861329F, 0.4542534630F, 0.4621274424F,
+    0.4700057001F, 0.4778858615F, 0.4857655502F, 0.4936423891F,
+    0.5015140023F, 0.5093780165F, 0.5172320626F, 0.5250737772F,
+    0.5329008043F, 0.5407107971F, 0.5485014192F, 0.5562703465F,
+    0.5640152688F, 0.5717338914F, 0.5794239366F, 0.5870831457F,
+    0.5947092801F, 0.6023001235F, 0.6098534829F, 0.6173671907F,
+    0.6248391059F, 0.6322671161F, 0.6396491384F, 0.6469831217F,
+    0.6542670475F, 0.6614989319F, 0.6686768267F, 0.6757988210F,
+    0.6828630426F, 0.6898676592F, 0.6968108799F, 0.7036909564F,
+    0.7105061843F, 0.7172549043F, 0.7239355032F, 0.7305464154F,
+    0.7370861235F, 0.7435531598F, 0.7499461068F, 0.7562635986F,
+    0.7625043214F, 0.7686670148F, 0.7747504721F, 0.7807535410F,
+    0.7866751247F, 0.7925141825F, 0.7982697296F, 0.8039408387F,
+    0.8095266395F, 0.8150263196F, 0.8204391248F, 0.8257643590F,
+    0.8310013848F, 0.8361496236F, 0.8412085555F, 0.8461777194F,
+    0.8510567129F, 0.8558451924F, 0.8605428730F, 0.8651495278F,
+    0.8696649882F, 0.8740891432F, 0.8784219392F, 0.8826633797F,
+    0.8868135244F, 0.8908724888F, 0.8948404441F, 0.8987176157F,
+    0.9025042831F, 0.9062007791F, 0.9098074886F, 0.9133248482F,
+    0.9167533451F, 0.9200935163F, 0.9233459472F, 0.9265112712F,
+    0.9295901680F, 0.9325833632F, 0.9354916263F, 0.9383157705F,
+    0.9410566504F, 0.9437151618F, 0.9462922398F, 0.9487888576F,
+    0.9512060252F, 0.9535447882F, 0.9558062262F, 0.9579914516F,
+    0.9601016078F, 0.9621378683F, 0.9641014348F, 0.9659935361F,
+    0.9678154261F, 0.9695683830F, 0.9712537071F, 0.9728727198F,
+    0.9744267618F, 0.9759171916F, 0.9773453842F, 0.9787127293F,
+    0.9800206298F, 0.9812705006F, 0.9824637665F, 0.9836018613F,
+    0.9846862258F, 0.9857183066F, 0.9866995544F, 0.9876314227F,
+    0.9885153662F, 0.9893528393F, 0.9901452948F, 0.9908941823F,
+    0.9916009470F, 0.9922670279F, 0.9928938570F, 0.9934828574F,
+    0.9940354423F, 0.9945530133F, 0.9950369595F, 0.9954886562F,
+    0.9959094633F, 0.9963007242F, 0.9966637649F, 0.9969998925F,
+    0.9973103939F, 0.9975965351F, 0.9978595598F, 0.9981006885F,
+    0.9983211172F, 0.9985220166F, 0.9987045311F, 0.9988697776F,
+    0.9990188449F, 0.9991527924F, 0.9992726499F, 0.9993794157F,
+    0.9994740570F, 0.9995575079F, 0.9996306699F, 0.9996944099F,
+    0.9997495605F, 0.9997969190F, 0.9998372465F, 0.9998712678F,
+    0.9998996704F, 0.9999231041F, 0.9999421807F, 0.9999574732F,
+    0.9999695157F, 0.9999788026F, 0.9999857885F, 0.9999908879F,
+    0.9999944746F, 0.9999968817F, 0.9999984010F, 0.9999992833F,
+    0.9999997377F, 0.9999999317F, 0.9999999911F, 0.9999999999F,
+};
+
+DECLARE_ALIGNED(16, static const float, vwin1024)[512] = {
+    0.0000036962F, 0.0000332659F, 0.0000924041F, 0.0001811086F,
+    0.0002993761F, 0.0004472021F, 0.0006245811F, 0.0008315063F,
+    0.0010679699F, 0.0013339631F, 0.0016294757F, 0.0019544965F,
+    0.0023090133F, 0.0026930125F, 0.0031064797F, 0.0035493989F,
+    0.0040217533F, 0.0045235250F, 0.0050546946F, 0.0056152418F,
+    0.0062051451F, 0.0068243817F, 0.0074729278F, 0.0081507582F,
+    0.0088578466F, 0.0095941655F, 0.0103596863F, 0.0111543789F,
+    0.0119782122F, 0.0128311538F, 0.0137131701F, 0.0146242260F,
+    0.0155642855F, 0.0165333111F, 0.0175312640F, 0.0185581042F,
+    0.0196137903F, 0.0206982797F, 0.0218115284F, 0.0229534910F,
+    0.0241241208F, 0.0253233698F, 0.0265511886F, 0.0278075263F,
+    0.0290923308F, 0.0304055484F, 0.0317471241F, 0.0331170013F,
+    0.0345151222F, 0.0359414274F, 0.0373958560F, 0.0388783456F,
+    0.0403888325F, 0.0419272511F, 0.0434935347F, 0.0450876148F,
+    0.0467094213F, 0.0483588828F, 0.0500359261F, 0.0517404765F,
+    0.0534724575F, 0.0552317913F, 0.0570183983F, 0.0588321971F,
+    0.0606731048F, 0.0625410369F, 0.0644359070F, 0.0663576272F,
+    0.0683061077F, 0.0702812571F, 0.0722829821F, 0.0743111878F,
+    0.0763657775F, 0.0784466526F, 0.0805537129F, 0.0826868561F,
+    0.0848459782F, 0.0870309736F, 0.0892417345F, 0.0914781514F,
+    0.0937401128F, 0.0960275056F, 0.0983402145F, 0.1006781223F,
+    0.1030411101F, 0.1054290568F, 0.1078418397F, 0.1102793336F,
+    0.1127414119F, 0.1152279457F, 0.1177388042F, 0.1202738544F,
+    0.1228329618F, 0.1254159892F, 0.1280227980F, 0.1306532471F,
+    0.1333071937F, 0.1359844927F, 0.1386849970F, 0.1414085575F,
+    0.1441550230F, 0.1469242403F, 0.1497160539F, 0.1525303063F,
+    0.1553668381F, 0.1582254875F, 0.1611060909F, 0.1640084822F,
+    0.1669324936F, 0.1698779549F, 0.1728446939F, 0.1758325362F,
+    0.1788413055F, 0.1818708232F, 0.1849209084F, 0.1879913785F,
+    0.1910820485F, 0.1941927312F, 0.1973232376F, 0.2004733764F,
+    0.2036429541F, 0.2068317752F, 0.2100396421F, 0.2132663552F,
+    0.2165117125F, 0.2197755102F, 0.2230575422F, 0.2263576007F,
+    0.2296754753F, 0.2330109540F, 0.2363638225F, 0.2397338646F,
+    0.2431208619F, 0.2465245941F, 0.2499448389F, 0.2533813719F,
+    0.2568339669F, 0.2603023956F, 0.2637864277F, 0.2672858312F,
+    0.2708003718F, 0.2743298135F, 0.2778739186F, 0.2814324472F,
+    0.2850051576F, 0.2885918065F, 0.2921921485F, 0.2958059366F,
+    0.2994329219F, 0.3030728538F, 0.3067254799F, 0.3103905462F,
+    0.3140677969F, 0.3177569747F, 0.3214578205F, 0.3251700736F,
+    0.3288934718F, 0.3326277513F, 0.3363726468F, 0.3401278914F,
+    0.3438932168F, 0.3476683533F, 0.3514530297F, 0.3552469734F,
+    0.3590499106F, 0.3628615659F, 0.3666816630F, 0.3705099239F,
+    0.3743460698F, 0.3781898204F, 0.3820408945F, 0.3858990095F,
+    0.3897638820F, 0.3936352274F, 0.3975127601F, 0.4013961936F,
+    0.4052852405F, 0.4091796123F, 0.4130790198F, 0.4169831732F,
+    0.4208917815F, 0.4248045534F, 0.4287211965F, 0.4326414181F,
+    0.4365649248F, 0.4404914225F, 0.4444206167F, 0.4483522125F,
+    0.4522859146F, 0.4562214270F, 0.4601584538F, 0.4640966984F,
+    0.4680358644F, 0.4719756548F, 0.4759157726F, 0.4798559209F,
+    0.4837958024F, 0.4877351199F, 0.4916735765F, 0.4956108751F,
+    0.4995467188F, 0.5034808109F, 0.5074128550F, 0.5113425550F,
+    0.5152696149F, 0.5191937395F, 0.5231146336F, 0.5270320028F,
+    0.5309455530F, 0.5348549910F, 0.5387600239F, 0.5426603597F,
+    0.5465557070F, 0.5504457754F, 0.5543302752F, 0.5582089175F,
+    0.5620814145F, 0.5659474793F, 0.5698068262F, 0.5736591704F,
+    0.5775042283F, 0.5813417176F, 0.5851713571F, 0.5889928670F,
+    0.5928059689F, 0.5966103856F, 0.6004058415F, 0.6041920626F,
+    0.6079687761F, 0.6117357113F, 0.6154925986F, 0.6192391705F,
+    0.6229751612F, 0.6267003064F, 0.6304143441F, 0.6341170137F,
+    0.6378080569F, 0.6414872173F, 0.6451542405F, 0.6488088741F,
+    0.6524508681F, 0.6560799742F, 0.6596959469F, 0.6632985424F,
+    0.6668875197F, 0.6704626398F, 0.6740236662F, 0.6775703649F,
+    0.6811025043F, 0.6846198554F, 0.6881221916F, 0.6916092892F,
+    0.6950809269F, 0.6985368861F, 0.7019769510F, 0.7054009085F,
+    0.7088085484F, 0.7121996632F, 0.7155740484F, 0.7189315023F,
+    0.7222718263F, 0.7255948245F, 0.7289003043F, 0.7321880760F,
+    0.7354579530F, 0.7387097518F, 0.7419432921F, 0.7451583966F,
+    0.7483548915F, 0.7515326059F, 0.7546913723F, 0.7578310265F,
+    0.7609514077F, 0.7640523581F, 0.7671337237F, 0.7701953535F,
+    0.7732371001F, 0.7762588195F, 0.7792603711F, 0.7822416178F,
+    0.7852024259F, 0.7881426654F, 0.7910622097F, 0.7939609356F,
+    0.7968387237F, 0.7996954579F, 0.8025310261F, 0.8053453193F,
+    0.8081382324F, 0.8109096638F, 0.8136595156F, 0.8163876936F,
+    0.8190941071F, 0.8217786690F, 0.8244412960F, 0.8270819086F,
+    0.8297004305F, 0.8322967896F, 0.8348709171F, 0.8374227481F,
+    0.8399522213F, 0.8424592789F, 0.8449438672F, 0.8474059356F,
+    0.8498454378F, 0.8522623306F, 0.8546565748F, 0.8570281348F,
+    0.8593769787F, 0.8617030779F, 0.8640064080F, 0.8662869477F,
+    0.8685446796F, 0.8707795899F, 0.8729916682F, 0.8751809079F,
+    0.8773473059F, 0.8794908626F, 0.8816115819F, 0.8837094713F,
+    0.8857845418F, 0.8878368079F, 0.8898662874F, 0.8918730019F,
+    0.8938569760F, 0.8958182380F, 0.8977568194F, 0.8996727552F,
+    0.9015660837F, 0.9034368465F, 0.9052850885F, 0.9071108577F,
+    0.9089142057F, 0.9106951869F, 0.9124538591F, 0.9141902832F,
+    0.9159045233F, 0.9175966464F, 0.9192667228F, 0.9209148257F,
+    0.9225410313F, 0.9241454187F, 0.9257280701F, 0.9272890704F,
+    0.9288285075F, 0.9303464720F, 0.9318430576F, 0.9333183603F,
+    0.9347724792F, 0.9362055158F, 0.9376175745F, 0.9390087622F,
+    0.9403791881F, 0.9417289644F, 0.9430582055F, 0.9443670283F,
+    0.9456555521F, 0.9469238986F, 0.9481721917F, 0.9494005577F,
+    0.9506091252F, 0.9517980248F, 0.9529673894F, 0.9541173540F,
+    0.9552480557F, 0.9563596334F, 0.9574522282F, 0.9585259830F,
+    0.9595810428F, 0.9606175542F, 0.9616356656F, 0.9626355274F,
+    0.9636172915F, 0.9645811114F, 0.9655271425F, 0.9664555414F,
+    0.9673664664F, 0.9682600774F, 0.9691365355F, 0.9699960034F,
+    0.9708386448F, 0.9716646250F, 0.9724741103F, 0.9732672685F,
+    0.9740442683F, 0.9748052795F, 0.9755504729F, 0.9762800205F,
+    0.9769940950F, 0.9776928703F, 0.9783765210F, 0.9790452223F,
+    0.9796991504F, 0.9803384823F, 0.9809633954F, 0.9815740679F,
+    0.9821706784F, 0.9827534063F, 0.9833224312F, 0.9838779332F,
+    0.9844200928F, 0.9849490910F, 0.9854651087F, 0.9859683274F,
+    0.9864589286F, 0.9869370940F, 0.9874030054F, 0.9878568447F,
+    0.9882987937F, 0.9887290343F, 0.9891477481F, 0.9895551169F,
+    0.9899513220F, 0.9903365446F, 0.9907109658F, 0.9910747662F,
+    0.9914281260F, 0.9917712252F, 0.9921042433F, 0.9924273593F,
+    0.9927407516F, 0.9930445982F, 0.9933390763F, 0.9936243626F,
+    0.9939006331F, 0.9941680631F, 0.9944268269F, 0.9946770982F,
+    0.9949190498F, 0.9951528537F, 0.9953786808F, 0.9955967011F,
+    0.9958070836F, 0.9960099963F, 0.9962056061F, 0.9963940787F,
+    0.9965755786F, 0.9967502693F, 0.9969183129F, 0.9970798704F,
+    0.9972351013F, 0.9973841640F, 0.9975272151F, 0.9976644103F,
+    0.9977959036F, 0.9979218476F, 0.9980423932F, 0.9981576901F,
+    0.9982678862F, 0.9983731278F, 0.9984735596F, 0.9985693247F,
+    0.9986605645F, 0.9987474186F, 0.9988300248F, 0.9989085193F,
+    0.9989830364F, 0.9990537085F, 0.9991206662F, 0.9991840382F,
+    0.9992439513F, 0.9993005303F, 0.9993538982F, 0.9994041757F,
+    0.9994514817F, 0.9994959330F, 0.9995376444F, 0.9995767286F,
+    0.9996132960F, 0.9996474550F, 0.9996793121F, 0.9997089710F,
+    0.9997365339F, 0.9997621003F, 0.9997857677F, 0.9998076311F,
+    0.9998277836F, 0.9998463156F, 0.9998633155F, 0.9998788692F,
+    0.9998930603F, 0.9999059701F, 0.9999176774F, 0.9999282586F,
+    0.9999377880F, 0.9999463370F, 0.9999539749F, 0.9999607685F,
+    0.9999667820F, 0.9999720773F, 0.9999767136F, 0.9999807479F,
+    0.9999842344F, 0.9999872249F, 0.9999897688F, 0.9999919127F,
+    0.9999937009F, 0.9999951749F, 0.9999963738F, 0.9999973342F,
+    0.9999980900F, 0.9999986724F, 0.9999991103F, 0.9999994297F,
+    0.9999996543F, 0.9999998049F, 0.9999999000F, 0.9999999552F,
+    0.9999999836F, 0.9999999957F, 0.9999999994F, 1.0000000000F,
+};
+
+DECLARE_ALIGNED(16, static const float, vwin2048)[1024] = {
+    0.0000009241F, 0.0000083165F, 0.0000231014F, 0.0000452785F,
+    0.0000748476F, 0.0001118085F, 0.0001561608F, 0.0002079041F,
+    0.0002670379F, 0.0003335617F, 0.0004074748F, 0.0004887765F,
+    0.0005774661F, 0.0006735427F, 0.0007770054F, 0.0008878533F,
+    0.0010060853F, 0.0011317002F, 0.0012646969F, 0.0014050742F,
+    0.0015528307F, 0.0017079650F, 0.0018704756F, 0.0020403610F,
+    0.0022176196F, 0.0024022497F, 0.0025942495F, 0.0027936173F,
+    0.0030003511F, 0.0032144490F, 0.0034359088F, 0.0036647286F,
+    0.0039009061F, 0.0041444391F, 0.0043953253F, 0.0046535621F,
+    0.0049191472F, 0.0051920781F, 0.0054723520F, 0.0057599664F,
+    0.0060549184F, 0.0063572052F, 0.0066668239F, 0.0069837715F,
+    0.0073080449F, 0.0076396410F, 0.0079785566F, 0.0083247884F,
+    0.0086783330F, 0.0090391871F, 0.0094073470F, 0.0097828092F,
+    0.0101655700F, 0.0105556258F, 0.0109529726F, 0.0113576065F,
+    0.0117695237F, 0.0121887200F, 0.0126151913F, 0.0130489335F,
+    0.0134899422F, 0.0139382130F, 0.0143937415F, 0.0148565233F,
+    0.0153265536F, 0.0158038279F, 0.0162883413F, 0.0167800889F,
+    0.0172790660F, 0.0177852675F, 0.0182986882F, 0.0188193231F,
+    0.0193471668F, 0.0198822141F, 0.0204244594F, 0.0209738974F,
+    0.0215305225F, 0.0220943289F, 0.0226653109F, 0.0232434627F,
+    0.0238287784F, 0.0244212519F, 0.0250208772F, 0.0256276481F,
+    0.0262415582F, 0.0268626014F, 0.0274907711F, 0.0281260608F,
+    0.0287684638F, 0.0294179736F, 0.0300745833F, 0.0307382859F,
+    0.0314090747F, 0.0320869424F, 0.0327718819F, 0.0334638860F,
+    0.0341629474F, 0.0348690586F, 0.0355822122F, 0.0363024004F,
+    0.0370296157F, 0.0377638502F, 0.0385050960F, 0.0392533451F,
+    0.0400085896F, 0.0407708211F, 0.0415400315F, 0.0423162123F,
+    0.0430993552F, 0.0438894515F, 0.0446864926F, 0.0454904698F,
+    0.0463013742F, 0.0471191969F, 0.0479439288F, 0.0487755607F,
+    0.0496140836F, 0.0504594879F, 0.0513117642F, 0.0521709031F,
+    0.0530368949F, 0.0539097297F, 0.0547893979F, 0.0556758894F,
+    0.0565691941F, 0.0574693019F, 0.0583762026F, 0.0592898858F,
+    0.0602103410F, 0.0611375576F, 0.0620715250F, 0.0630122324F,
+    0.0639596688F, 0.0649138234F, 0.0658746848F, 0.0668422421F,
+    0.0678164838F, 0.0687973985F, 0.0697849746F, 0.0707792005F,
+    0.0717800645F, 0.0727875547F, 0.0738016591F, 0.0748223656F,
+    0.0758496620F, 0.0768835359F, 0.0779239751F, 0.0789709668F,
+    0.0800244985F, 0.0810845574F, 0.0821511306F, 0.0832242052F,
+    0.0843037679F, 0.0853898056F, 0.0864823050F, 0.0875812525F,
+    0.0886866347F, 0.0897984378F, 0.0909166480F, 0.0920412513F,
+    0.0931722338F, 0.0943095813F, 0.0954532795F, 0.0966033140F,
+    0.0977596702F, 0.0989223336F, 0.1000912894F, 0.1012665227F,
+    0.1024480185F, 0.1036357616F, 0.1048297369F, 0.1060299290F,
+    0.1072363224F, 0.1084489014F, 0.1096676504F, 0.1108925534F,
+    0.1121235946F, 0.1133607577F, 0.1146040267F, 0.1158533850F,
+    0.1171088163F, 0.1183703040F, 0.1196378312F, 0.1209113812F,
+    0.1221909370F, 0.1234764815F, 0.1247679974F, 0.1260654674F,
+    0.1273688740F, 0.1286781995F, 0.1299934263F, 0.1313145365F,
+    0.1326415121F, 0.1339743349F, 0.1353129866F, 0.1366574490F,
+    0.1380077035F, 0.1393637315F, 0.1407255141F, 0.1420930325F,
+    0.1434662677F, 0.1448452004F, 0.1462298115F, 0.1476200814F,
+    0.1490159906F, 0.1504175195F, 0.1518246482F, 0.1532373569F,
+    0.1546556253F, 0.1560794333F, 0.1575087606F, 0.1589435866F,
+    0.1603838909F, 0.1618296526F, 0.1632808509F, 0.1647374648F,
+    0.1661994731F, 0.1676668546F, 0.1691395880F, 0.1706176516F,
+    0.1721010238F, 0.1735896829F, 0.1750836068F, 0.1765827736F,
+    0.1780871610F, 0.1795967468F, 0.1811115084F, 0.1826314234F,
+    0.1841564689F, 0.1856866221F, 0.1872218600F, 0.1887621595F,
+    0.1903074974F, 0.1918578503F, 0.1934131947F, 0.1949735068F,
+    0.1965387630F, 0.1981089393F, 0.1996840117F, 0.2012639560F,
+    0.2028487479F, 0.2044383630F, 0.2060327766F, 0.2076319642F,
+    0.2092359007F, 0.2108445614F, 0.2124579211F, 0.2140759545F,
+    0.2156986364F, 0.2173259411F, 0.2189578432F, 0.2205943168F,
+    0.2222353361F, 0.2238808751F, 0.2255309076F, 0.2271854073F,
+    0.2288443480F, 0.2305077030F, 0.2321754457F, 0.2338475493F,
+    0.2355239869F, 0.2372047315F, 0.2388897560F, 0.2405790329F,
+    0.2422725350F, 0.2439702347F, 0.2456721043F, 0.2473781159F,
+    0.2490882418F, 0.2508024539F, 0.2525207240F, 0.2542430237F,
+    0.2559693248F, 0.2576995986F, 0.2594338166F, 0.2611719498F,
+    0.2629139695F, 0.2646598466F, 0.2664095520F, 0.2681630564F,
+    0.2699203304F, 0.2716813445F, 0.2734460691F, 0.2752144744F,
+    0.2769865307F, 0.2787622079F, 0.2805414760F, 0.2823243047F,
+    0.2841106637F, 0.2859005227F, 0.2876938509F, 0.2894906179F,
+    0.2912907928F, 0.2930943447F, 0.2949012426F, 0.2967114554F,
+    0.2985249520F, 0.3003417009F, 0.3021616708F, 0.3039848301F,
+    0.3058111471F, 0.3076405901F, 0.3094731273F, 0.3113087266F,
+    0.3131473560F, 0.3149889833F, 0.3168335762F, 0.3186811024F,
+    0.3205315294F, 0.3223848245F, 0.3242409552F, 0.3260998886F,
+    0.3279615918F, 0.3298260319F, 0.3316931758F, 0.3335629903F,
+    0.3354354423F, 0.3373104982F, 0.3391881247F, 0.3410682882F,
+    0.3429509551F, 0.3448360917F, 0.3467236642F, 0.3486136387F,
+    0.3505059811F, 0.3524006575F, 0.3542976336F, 0.3561968753F,
+    0.3580983482F, 0.3600020179F, 0.3619078499F, 0.3638158096F,
+    0.3657258625F, 0.3676379737F, 0.3695521086F, 0.3714682321F,
+    0.3733863094F, 0.3753063055F, 0.3772281852F, 0.3791519134F,
+    0.3810774548F, 0.3830047742F, 0.3849338362F, 0.3868646053F,
+    0.3887970459F, 0.3907311227F, 0.3926667998F, 0.3946040417F,
+    0.3965428125F, 0.3984830765F, 0.4004247978F, 0.4023679403F,
+    0.4043124683F, 0.4062583455F, 0.4082055359F, 0.4101540034F,
+    0.4121037117F, 0.4140546246F, 0.4160067058F, 0.4179599190F,
+    0.4199142277F, 0.4218695956F, 0.4238259861F, 0.4257833627F,
+    0.4277416888F, 0.4297009279F, 0.4316610433F, 0.4336219983F,
+    0.4355837562F, 0.4375462803F, 0.4395095337F, 0.4414734797F,
+    0.4434380815F, 0.4454033021F, 0.4473691046F, 0.4493354521F,
+    0.4513023078F, 0.4532696345F, 0.4552373954F, 0.4572055533F,
+    0.4591740713F, 0.4611429123F, 0.4631120393F, 0.4650814151F,
+    0.4670510028F, 0.4690207650F, 0.4709906649F, 0.4729606651F,
+    0.4749307287F, 0.4769008185F, 0.4788708972F, 0.4808409279F,
+    0.4828108732F, 0.4847806962F, 0.4867503597F, 0.4887198264F,
+    0.4906890593F, 0.4926580213F, 0.4946266753F, 0.4965949840F,
+    0.4985629105F, 0.5005304176F, 0.5024974683F, 0.5044640255F,
+    0.5064300522F, 0.5083955114F, 0.5103603659F, 0.5123245790F,
+    0.5142881136F, 0.5162509328F, 0.5182129997F, 0.5201742774F,
+    0.5221347290F, 0.5240943178F, 0.5260530070F, 0.5280107598F,
+    0.5299675395F, 0.5319233095F, 0.5338780330F, 0.5358316736F,
+    0.5377841946F, 0.5397355596F, 0.5416857320F, 0.5436346755F,
+    0.5455823538F, 0.5475287304F, 0.5494737691F, 0.5514174337F,
+    0.5533596881F, 0.5553004962F, 0.5572398218F, 0.5591776291F,
+    0.5611138821F, 0.5630485449F, 0.5649815818F, 0.5669129570F,
+    0.5688426349F, 0.5707705799F, 0.5726967564F, 0.5746211290F,
+    0.5765436624F, 0.5784643212F, 0.5803830702F, 0.5822998743F,
+    0.5842146984F, 0.5861275076F, 0.5880382669F, 0.5899469416F,
+    0.5918534968F, 0.5937578981F, 0.5956601107F, 0.5975601004F,
+    0.5994578326F, 0.6013532732F, 0.6032463880F, 0.6051371429F,
+    0.6070255039F, 0.6089114372F, 0.6107949090F, 0.6126758856F,
+    0.6145543334F, 0.6164302191F, 0.6183035092F, 0.6201741706F,
+    0.6220421700F, 0.6239074745F, 0.6257700513F, 0.6276298674F,
+    0.6294868903F, 0.6313410873F, 0.6331924262F, 0.6350408745F,
+    0.6368864001F, 0.6387289710F, 0.6405685552F, 0.6424051209F,
+    0.6442386364F, 0.6460690702F, 0.6478963910F, 0.6497205673F,
+    0.6515415682F, 0.6533593625F, 0.6551739194F, 0.6569852082F,
+    0.6587931984F, 0.6605978593F, 0.6623991609F, 0.6641970728F,
+    0.6659915652F, 0.6677826081F, 0.6695701718F, 0.6713542268F,
+    0.6731347437F, 0.6749116932F, 0.6766850461F, 0.6784547736F,
+    0.6802208469F, 0.6819832374F, 0.6837419164F, 0.6854968559F,
+    0.6872480275F, 0.6889954034F, 0.6907389556F, 0.6924786566F,
+    0.6942144788F, 0.6959463950F, 0.6976743780F, 0.6993984008F,
+    0.7011184365F, 0.7028344587F, 0.7045464407F, 0.7062543564F,
+    0.7079581796F, 0.7096578844F, 0.7113534450F, 0.7130448359F,
+    0.7147320316F, 0.7164150070F, 0.7180937371F, 0.7197681970F,
+    0.7214383620F, 0.7231042077F, 0.7247657098F, 0.7264228443F,
+    0.7280755871F, 0.7297239147F, 0.7313678035F, 0.7330072301F,
+    0.7346421715F, 0.7362726046F, 0.7378985069F, 0.7395198556F,
+    0.7411366285F, 0.7427488034F, 0.7443563584F, 0.7459592717F,
+    0.7475575218F, 0.7491510873F, 0.7507399471F, 0.7523240803F,
+    0.7539034661F, 0.7554780839F, 0.7570479136F, 0.7586129349F,
+    0.7601731279F, 0.7617284730F, 0.7632789506F, 0.7648245416F,
+    0.7663652267F, 0.7679009872F, 0.7694318044F, 0.7709576599F,
+    0.7724785354F, 0.7739944130F, 0.7755052749F, 0.7770111035F,
+    0.7785118815F, 0.7800075916F, 0.7814982170F, 0.7829837410F,
+    0.7844641472F, 0.7859394191F, 0.7874095408F, 0.7888744965F,
+    0.7903342706F, 0.7917888476F, 0.7932382124F, 0.7946823501F,
+    0.7961212460F, 0.7975548855F, 0.7989832544F, 0.8004063386F,
+    0.8018241244F, 0.8032365981F, 0.8046437463F, 0.8060455560F,
+    0.8074420141F, 0.8088331080F, 0.8102188253F, 0.8115991536F,
+    0.8129740810F, 0.8143435957F, 0.8157076861F, 0.8170663409F,
+    0.8184195489F, 0.8197672994F, 0.8211095817F, 0.8224463853F,
+    0.8237777001F, 0.8251035161F, 0.8264238235F, 0.8277386129F,
+    0.8290478750F, 0.8303516008F, 0.8316497814F, 0.8329424083F,
+    0.8342294731F, 0.8355109677F, 0.8367868841F, 0.8380572148F,
+    0.8393219523F, 0.8405810893F, 0.8418346190F, 0.8430825345F,
+    0.8443248294F, 0.8455614974F, 0.8467925323F, 0.8480179285F,
+    0.8492376802F, 0.8504517822F, 0.8516602292F, 0.8528630164F,
+    0.8540601391F, 0.8552515928F, 0.8564373733F, 0.8576174766F,
+    0.8587918990F, 0.8599606368F, 0.8611236868F, 0.8622810460F,
+    0.8634327113F, 0.8645786802F, 0.8657189504F, 0.8668535195F,
+    0.8679823857F, 0.8691055472F, 0.8702230025F, 0.8713347503F,
+    0.8724407896F, 0.8735411194F, 0.8746357394F, 0.8757246489F,
+    0.8768078479F, 0.8778853364F, 0.8789571146F, 0.8800231832F,
+    0.8810835427F, 0.8821381942F, 0.8831871387F, 0.8842303777F,
+    0.8852679127F, 0.8862997456F, 0.8873258784F, 0.8883463132F,
+    0.8893610527F, 0.8903700994F, 0.8913734562F, 0.8923711263F,
+    0.8933631129F, 0.8943494196F, 0.8953300500F, 0.8963050083F,
+    0.8972742985F, 0.8982379249F, 0.8991958922F, 0.9001482052F,
+    0.9010948688F, 0.9020358883F, 0.9029712690F, 0.9039010165F,
+    0.9048251367F, 0.9057436357F, 0.9066565195F, 0.9075637946F,
+    0.9084654678F, 0.9093615456F, 0.9102520353F, 0.9111369440F,
+    0.9120162792F, 0.9128900484F, 0.9137582595F, 0.9146209204F,
+    0.9154780394F, 0.9163296248F, 0.9171756853F, 0.9180162296F,
+    0.9188512667F, 0.9196808057F, 0.9205048559F, 0.9213234270F,
+    0.9221365285F, 0.9229441704F, 0.9237463629F, 0.9245431160F,
+    0.9253344404F, 0.9261203465F, 0.9269008453F, 0.9276759477F,
+    0.9284456648F, 0.9292100080F, 0.9299689889F, 0.9307226190F,
+    0.9314709103F, 0.9322138747F, 0.9329515245F, 0.9336838721F,
+    0.9344109300F, 0.9351327108F, 0.9358492275F, 0.9365604931F,
+    0.9372665208F, 0.9379673239F, 0.9386629160F, 0.9393533107F,
+    0.9400385220F, 0.9407185637F, 0.9413934501F, 0.9420631954F,
+    0.9427278141F, 0.9433873208F, 0.9440417304F, 0.9446910576F,
+    0.9453353176F, 0.9459745255F, 0.9466086968F, 0.9472378469F,
+    0.9478619915F, 0.9484811463F, 0.9490953274F, 0.9497045506F,
+    0.9503088323F, 0.9509081888F, 0.9515026365F, 0.9520921921F,
+    0.9526768723F, 0.9532566940F, 0.9538316742F, 0.9544018300F,
+    0.9549671786F, 0.9555277375F, 0.9560835241F, 0.9566345562F,
+    0.9571808513F, 0.9577224275F, 0.9582593027F, 0.9587914949F,
+    0.9593190225F, 0.9598419038F, 0.9603601571F, 0.9608738012F,
+    0.9613828546F, 0.9618873361F, 0.9623872646F, 0.9628826591F,
+    0.9633735388F, 0.9638599227F, 0.9643418303F, 0.9648192808F,
+    0.9652922939F, 0.9657608890F, 0.9662250860F, 0.9666849046F,
+    0.9671403646F, 0.9675914861F, 0.9680382891F, 0.9684807937F,
+    0.9689190202F, 0.9693529890F, 0.9697827203F, 0.9702082347F,
+    0.9706295529F, 0.9710466953F, 0.9714596828F, 0.9718685362F,
+    0.9722732762F, 0.9726739240F, 0.9730705005F, 0.9734630267F,
+    0.9738515239F, 0.9742360134F, 0.9746165163F, 0.9749930540F,
+    0.9753656481F, 0.9757343198F, 0.9760990909F, 0.9764599829F,
+    0.9768170175F, 0.9771702164F, 0.9775196013F, 0.9778651941F,
+    0.9782070167F, 0.9785450909F, 0.9788794388F, 0.9792100824F,
+    0.9795370437F, 0.9798603449F, 0.9801800080F, 0.9804960554F,
+    0.9808085092F, 0.9811173916F, 0.9814227251F, 0.9817245318F,
+    0.9820228343F, 0.9823176549F, 0.9826090160F, 0.9828969402F,
+    0.9831814498F, 0.9834625674F, 0.9837403156F, 0.9840147169F,
+    0.9842857939F, 0.9845535692F, 0.9848180654F, 0.9850793052F,
+    0.9853373113F, 0.9855921062F, 0.9858437127F, 0.9860921535F,
+    0.9863374512F, 0.9865796287F, 0.9868187085F, 0.9870547136F,
+    0.9872876664F, 0.9875175899F, 0.9877445067F, 0.9879684396F,
+    0.9881894112F, 0.9884074444F, 0.9886225619F, 0.9888347863F,
+    0.9890441404F, 0.9892506468F, 0.9894543284F, 0.9896552077F,
+    0.9898533074F, 0.9900486502F, 0.9902412587F, 0.9904311555F,
+    0.9906183633F, 0.9908029045F, 0.9909848019F, 0.9911640779F,
+    0.9913407550F, 0.9915148557F, 0.9916864025F, 0.9918554179F,
+    0.9920219241F, 0.9921859437F, 0.9923474989F, 0.9925066120F,
+    0.9926633054F, 0.9928176012F, 0.9929695218F, 0.9931190891F,
+    0.9932663254F, 0.9934112527F, 0.9935538932F, 0.9936942686F,
+    0.9938324012F, 0.9939683126F, 0.9941020248F, 0.9942335597F,
+    0.9943629388F, 0.9944901841F, 0.9946153170F, 0.9947383593F,
+    0.9948593325F, 0.9949782579F, 0.9950951572F, 0.9952100516F,
+    0.9953229625F, 0.9954339111F, 0.9955429186F, 0.9956500062F,
+    0.9957551948F, 0.9958585056F, 0.9959599593F, 0.9960595769F,
+    0.9961573792F, 0.9962533869F, 0.9963476206F, 0.9964401009F,
+    0.9965308483F, 0.9966198833F, 0.9967072261F, 0.9967928971F,
+    0.9968769164F, 0.9969593041F, 0.9970400804F, 0.9971192651F,
+    0.9971968781F, 0.9972729391F, 0.9973474680F, 0.9974204842F,
+    0.9974920074F, 0.9975620569F, 0.9976306521F, 0.9976978122F,
+    0.9977635565F, 0.9978279039F, 0.9978908736F, 0.9979524842F,
+    0.9980127547F, 0.9980717037F, 0.9981293499F, 0.9981857116F,
+    0.9982408073F, 0.9982946554F, 0.9983472739F, 0.9983986810F,
+    0.9984488947F, 0.9984979328F, 0.9985458132F, 0.9985925534F,
+    0.9986381711F, 0.9986826838F, 0.9987261086F, 0.9987684630F,
+    0.9988097640F, 0.9988500286F, 0.9988892738F, 0.9989275163F,
+    0.9989647727F, 0.9990010597F, 0.9990363938F, 0.9990707911F,
+    0.9991042679F, 0.9991368404F, 0.9991685244F, 0.9991993358F,
+    0.9992292905F, 0.9992584038F, 0.9992866914F, 0.9993141686F,
+    0.9993408506F, 0.9993667526F, 0.9993918895F, 0.9994162761F,
+    0.9994399273F, 0.9994628576F, 0.9994850815F, 0.9995066133F,
+    0.9995274672F, 0.9995476574F, 0.9995671978F, 0.9995861021F,
+    0.9996043841F, 0.9996220573F, 0.9996391352F, 0.9996556310F,
+    0.9996715579F, 0.9996869288F, 0.9997017568F, 0.9997160543F,
+    0.9997298342F, 0.9997431088F, 0.9997558905F, 0.9997681914F,
+    0.9997800236F, 0.9997913990F, 0.9998023292F, 0.9998128261F,
+    0.9998229009F, 0.9998325650F, 0.9998418296F, 0.9998507058F,
+    0.9998592044F, 0.9998673362F, 0.9998751117F, 0.9998825415F,
+    0.9998896358F, 0.9998964047F, 0.9999028584F, 0.9999090066F,
+    0.9999148590F, 0.9999204253F, 0.9999257148F, 0.9999307368F,
+    0.9999355003F, 0.9999400144F, 0.9999442878F, 0.9999483293F,
+    0.9999521472F, 0.9999557499F, 0.9999591457F, 0.9999623426F,
+    0.9999653483F, 0.9999681708F, 0.9999708175F, 0.9999732959F,
+    0.9999756132F, 0.9999777765F, 0.9999797928F, 0.9999816688F,
+    0.9999834113F, 0.9999850266F, 0.9999865211F, 0.9999879009F,
+    0.9999891721F, 0.9999903405F, 0.9999914118F, 0.9999923914F,
+    0.9999932849F, 0.9999940972F, 0.9999948336F, 0.9999954989F,
+    0.9999960978F, 0.9999966349F, 0.9999971146F, 0.9999975411F,
+    0.9999979185F, 0.9999982507F, 0.9999985414F, 0.9999987944F,
+    0.9999990129F, 0.9999992003F, 0.9999993596F, 0.9999994939F,
+    0.9999996059F, 0.9999996981F, 0.9999997732F, 0.9999998333F,
+    0.9999998805F, 0.9999999170F, 0.9999999444F, 0.9999999643F,
+    0.9999999784F, 0.9999999878F, 0.9999999937F, 0.9999999972F,
+    0.9999999990F, 0.9999999997F, 1.0000000000F, 1.0000000000F,
+};
+
+DECLARE_ALIGNED(16, static const float, vwin4096)[2048] = {
+    0.0000002310F, 0.0000020791F, 0.0000057754F, 0.0000113197F,
+    0.0000187121F, 0.0000279526F, 0.0000390412F, 0.0000519777F,
+    0.0000667623F, 0.0000833949F, 0.0001018753F, 0.0001222036F,
+    0.0001443798F, 0.0001684037F, 0.0001942754F, 0.0002219947F,
+    0.0002515616F, 0.0002829761F, 0.0003162380F, 0.0003513472F,
+    0.0003883038F, 0.0004271076F, 0.0004677584F, 0.0005102563F,
+    0.0005546011F, 0.0006007928F, 0.0006488311F, 0.0006987160F,
+    0.0007504474F, 0.0008040251F, 0.0008594490F, 0.0009167191F,
+    0.0009758351F, 0.0010367969F, 0.0010996044F, 0.0011642574F,
+    0.0012307558F, 0.0012990994F, 0.0013692880F, 0.0014413216F,
+    0.0015151998F, 0.0015909226F, 0.0016684898F, 0.0017479011F,
+    0.0018291565F, 0.0019122556F, 0.0019971983F, 0.0020839845F,
+    0.0021726138F, 0.0022630861F, 0.0023554012F, 0.0024495588F,
+    0.0025455588F, 0.0026434008F, 0.0027430847F, 0.0028446103F,
+    0.0029479772F, 0.0030531853F, 0.0031602342F, 0.0032691238F,
+    0.0033798538F, 0.0034924239F, 0.0036068338F, 0.0037230833F,
+    0.0038411721F, 0.0039610999F, 0.0040828664F, 0.0042064714F,
+    0.0043319145F, 0.0044591954F, 0.0045883139F, 0.0047192696F,
+    0.0048520622F, 0.0049866914F, 0.0051231569F, 0.0052614583F,
+    0.0054015953F, 0.0055435676F, 0.0056873748F, 0.0058330166F,
+    0.0059804926F, 0.0061298026F, 0.0062809460F, 0.0064339226F,
+    0.0065887320F, 0.0067453738F, 0.0069038476F, 0.0070641531F,
+    0.0072262899F, 0.0073902575F, 0.0075560556F, 0.0077236838F,
+    0.0078931417F, 0.0080644288F, 0.0082375447F, 0.0084124891F,
+    0.0085892615F, 0.0087678614F, 0.0089482885F, 0.0091305422F,
+    0.0093146223F, 0.0095005281F, 0.0096882592F, 0.0098778153F,
+    0.0100691958F, 0.0102624002F, 0.0104574281F, 0.0106542791F,
+    0.0108529525F, 0.0110534480F, 0.0112557651F, 0.0114599032F,
+    0.0116658618F, 0.0118736405F, 0.0120832387F, 0.0122946560F,
+    0.0125078917F, 0.0127229454F, 0.0129398166F, 0.0131585046F,
+    0.0133790090F, 0.0136013292F, 0.0138254647F, 0.0140514149F,
+    0.0142791792F, 0.0145087572F, 0.0147401481F, 0.0149733515F,
+    0.0152083667F, 0.0154451932F, 0.0156838304F, 0.0159242777F,
+    0.0161665345F, 0.0164106001F, 0.0166564741F, 0.0169041557F,
+    0.0171536443F, 0.0174049393F, 0.0176580401F, 0.0179129461F,
+    0.0181696565F, 0.0184281708F, 0.0186884883F, 0.0189506084F,
+    0.0192145303F, 0.0194802535F, 0.0197477772F, 0.0200171008F,
+    0.0202882236F, 0.0205611449F, 0.0208358639F, 0.0211123801F,
+    0.0213906927F, 0.0216708011F, 0.0219527043F, 0.0222364019F,
+    0.0225218930F, 0.0228091769F, 0.0230982529F, 0.0233891203F,
+    0.0236817782F, 0.0239762259F, 0.0242724628F, 0.0245704880F,
+    0.0248703007F, 0.0251719002F, 0.0254752858F, 0.0257804565F,
+    0.0260874117F, 0.0263961506F, 0.0267066722F, 0.0270189760F,
+    0.0273330609F, 0.0276489263F, 0.0279665712F, 0.0282859949F,
+    0.0286071966F, 0.0289301753F, 0.0292549303F, 0.0295814607F,
+    0.0299097656F, 0.0302398442F, 0.0305716957F, 0.0309053191F,
+    0.0312407135F, 0.0315778782F, 0.0319168122F, 0.0322575145F,
+    0.0325999844F, 0.0329442209F, 0.0332902231F, 0.0336379900F,
+    0.0339875208F, 0.0343388146F, 0.0346918703F, 0.0350466871F,
+    0.0354032640F, 0.0357616000F, 0.0361216943F, 0.0364835458F,
+    0.0368471535F, 0.0372125166F, 0.0375796339F, 0.0379485046F,
+    0.0383191276F, 0.0386915020F, 0.0390656267F, 0.0394415008F,
+    0.0398191231F, 0.0401984927F, 0.0405796086F, 0.0409624698F,
+    0.0413470751F, 0.0417334235F, 0.0421215141F, 0.0425113457F,
+    0.0429029172F, 0.0432962277F, 0.0436912760F, 0.0440880610F,
+    0.0444865817F, 0.0448868370F, 0.0452888257F, 0.0456925468F,
+    0.0460979992F, 0.0465051816F, 0.0469140931F, 0.0473247325F,
+    0.0477370986F, 0.0481511902F, 0.0485670064F, 0.0489845458F,
+    0.0494038074F, 0.0498247899F, 0.0502474922F, 0.0506719131F,
+    0.0510980514F, 0.0515259060F, 0.0519554756F, 0.0523867590F,
+    0.0528197550F, 0.0532544624F, 0.0536908800F, 0.0541290066F,
+    0.0545688408F, 0.0550103815F, 0.0554536274F, 0.0558985772F,
+    0.0563452297F, 0.0567935837F, 0.0572436377F, 0.0576953907F,
+    0.0581488412F, 0.0586039880F, 0.0590608297F, 0.0595193651F,
+    0.0599795929F, 0.0604415117F, 0.0609051202F, 0.0613704170F,
+    0.0618374009F, 0.0623060704F, 0.0627764243F, 0.0632484611F,
+    0.0637221795F, 0.0641975781F, 0.0646746555F, 0.0651534104F,
+    0.0656338413F, 0.0661159469F, 0.0665997257F, 0.0670851763F,
+    0.0675722973F, 0.0680610873F, 0.0685515448F, 0.0690436684F,
+    0.0695374567F, 0.0700329081F, 0.0705300213F, 0.0710287947F,
+    0.0715292269F, 0.0720313163F, 0.0725350616F, 0.0730404612F,
+    0.0735475136F, 0.0740562172F, 0.0745665707F, 0.0750785723F,
+    0.0755922207F, 0.0761075143F, 0.0766244515F, 0.0771430307F,
+    0.0776632505F, 0.0781851092F, 0.0787086052F, 0.0792337371F,
+    0.0797605032F, 0.0802889018F, 0.0808189315F, 0.0813505905F,
+    0.0818838773F, 0.0824187903F, 0.0829553277F, 0.0834934881F,
+    0.0840332697F, 0.0845746708F, 0.0851176899F, 0.0856623252F,
+    0.0862085751F, 0.0867564379F, 0.0873059119F, 0.0878569954F,
+    0.0884096867F, 0.0889639840F, 0.0895198858F, 0.0900773902F,
+    0.0906364955F, 0.0911972000F, 0.0917595019F, 0.0923233995F,
+    0.0928888909F, 0.0934559745F, 0.0940246485F, 0.0945949110F,
+    0.0951667604F, 0.0957401946F, 0.0963152121F, 0.0968918109F,
+    0.0974699893F, 0.0980497454F, 0.0986310773F, 0.0992139832F,
+    0.0997984614F, 0.1003845098F, 0.1009721267F, 0.1015613101F,
+    0.1021520582F, 0.1027443692F, 0.1033382410F, 0.1039336718F,
+    0.1045306597F, 0.1051292027F, 0.1057292990F, 0.1063309466F,
+    0.1069341435F, 0.1075388878F, 0.1081451776F, 0.1087530108F,
+    0.1093623856F, 0.1099732998F, 0.1105857516F, 0.1111997389F,
+    0.1118152597F, 0.1124323121F, 0.1130508939F, 0.1136710032F,
+    0.1142926379F, 0.1149157960F, 0.1155404755F, 0.1161666742F,
+    0.1167943901F, 0.1174236211F, 0.1180543652F, 0.1186866202F,
+    0.1193203841F, 0.1199556548F, 0.1205924300F, 0.1212307078F,
+    0.1218704860F, 0.1225117624F, 0.1231545349F, 0.1237988013F,
+    0.1244445596F, 0.1250918074F, 0.1257405427F, 0.1263907632F,
+    0.1270424667F, 0.1276956512F, 0.1283503142F, 0.1290064537F,
+    0.1296640674F, 0.1303231530F, 0.1309837084F, 0.1316457312F,
+    0.1323092193F, 0.1329741703F, 0.1336405820F, 0.1343084520F,
+    0.1349777782F, 0.1356485582F, 0.1363207897F, 0.1369944704F,
+    0.1376695979F, 0.1383461700F, 0.1390241842F, 0.1397036384F,
+    0.1403845300F, 0.1410668567F, 0.1417506162F, 0.1424358061F,
+    0.1431224240F, 0.1438104674F, 0.1444999341F, 0.1451908216F,
+    0.1458831274F, 0.1465768492F, 0.1472719844F, 0.1479685308F,
+    0.1486664857F, 0.1493658468F, 0.1500666115F, 0.1507687775F,
+    0.1514723422F, 0.1521773031F, 0.1528836577F, 0.1535914035F,
+    0.1543005380F, 0.1550110587F, 0.1557229631F, 0.1564362485F,
+    0.1571509124F, 0.1578669524F, 0.1585843657F, 0.1593031499F,
+    0.1600233024F, 0.1607448205F, 0.1614677017F, 0.1621919433F,
+    0.1629175428F, 0.1636444975F, 0.1643728047F, 0.1651024619F,
+    0.1658334665F, 0.1665658156F, 0.1672995067F, 0.1680345371F,
+    0.1687709041F, 0.1695086050F, 0.1702476372F, 0.1709879978F,
+    0.1717296843F, 0.1724726938F, 0.1732170237F, 0.1739626711F,
+    0.1747096335F, 0.1754579079F, 0.1762074916F, 0.1769583819F,
+    0.1777105760F, 0.1784640710F, 0.1792188642F, 0.1799749529F,
+    0.1807323340F, 0.1814910049F, 0.1822509628F, 0.1830122046F,
+    0.1837747277F, 0.1845385292F, 0.1853036062F, 0.1860699558F,
+    0.1868375751F, 0.1876064613F, 0.1883766114F, 0.1891480226F,
+    0.1899206919F, 0.1906946164F, 0.1914697932F, 0.1922462194F,
+    0.1930238919F, 0.1938028079F, 0.1945829643F, 0.1953643583F,
+    0.1961469868F, 0.1969308468F, 0.1977159353F, 0.1985022494F,
+    0.1992897859F, 0.2000785420F, 0.2008685145F, 0.2016597005F,
+    0.2024520968F, 0.2032457005F, 0.2040405084F, 0.2048365175F,
+    0.2056337247F, 0.2064321269F, 0.2072317211F, 0.2080325041F,
+    0.2088344727F, 0.2096376240F, 0.2104419547F, 0.2112474618F,
+    0.2120541420F, 0.2128619923F, 0.2136710094F, 0.2144811902F,
+    0.2152925315F, 0.2161050301F, 0.2169186829F, 0.2177334866F,
+    0.2185494381F, 0.2193665340F, 0.2201847712F, 0.2210041465F,
+    0.2218246565F, 0.2226462981F, 0.2234690680F, 0.2242929629F,
+    0.2251179796F, 0.2259441147F, 0.2267713650F, 0.2275997272F,
+    0.2284291979F, 0.2292597739F, 0.2300914518F, 0.2309242283F,
+    0.2317581001F, 0.2325930638F, 0.2334291160F, 0.2342662534F,
+    0.2351044727F, 0.2359437703F, 0.2367841431F, 0.2376255875F,
+    0.2384681001F, 0.2393116776F, 0.2401563165F, 0.2410020134F,
+    0.2418487649F, 0.2426965675F, 0.2435454178F, 0.2443953122F,
+    0.2452462474F, 0.2460982199F, 0.2469512262F, 0.2478052628F,
+    0.2486603262F, 0.2495164129F, 0.2503735194F, 0.2512316421F,
+    0.2520907776F, 0.2529509222F, 0.2538120726F, 0.2546742250F,
+    0.2555373760F, 0.2564015219F, 0.2572666593F, 0.2581327845F,
+    0.2589998939F, 0.2598679840F, 0.2607370510F, 0.2616070916F,
+    0.2624781019F, 0.2633500783F, 0.2642230173F, 0.2650969152F,
+    0.2659717684F, 0.2668475731F, 0.2677243257F, 0.2686020226F,
+    0.2694806601F, 0.2703602344F, 0.2712407419F, 0.2721221789F,
+    0.2730045417F, 0.2738878265F, 0.2747720297F, 0.2756571474F,
+    0.2765431760F, 0.2774301117F, 0.2783179508F, 0.2792066895F,
+    0.2800963240F, 0.2809868505F, 0.2818782654F, 0.2827705647F,
+    0.2836637447F, 0.2845578016F, 0.2854527315F, 0.2863485307F,
+    0.2872451953F, 0.2881427215F, 0.2890411055F, 0.2899403433F,
+    0.2908404312F, 0.2917413654F, 0.2926431418F, 0.2935457567F,
+    0.2944492061F, 0.2953534863F, 0.2962585932F, 0.2971645230F,
+    0.2980712717F, 0.2989788356F, 0.2998872105F, 0.3007963927F,
+    0.3017063781F, 0.3026171629F, 0.3035287430F, 0.3044411145F,
+    0.3053542736F, 0.3062682161F, 0.3071829381F, 0.3080984356F,
+    0.3090147047F, 0.3099317413F, 0.3108495414F, 0.3117681011F,
+    0.3126874163F, 0.3136074830F, 0.3145282972F, 0.3154498548F,
+    0.3163721517F, 0.3172951841F, 0.3182189477F, 0.3191434385F,
+    0.3200686525F, 0.3209945856F, 0.3219212336F, 0.3228485927F,
+    0.3237766585F, 0.3247054271F, 0.3256348943F, 0.3265650560F,
+    0.3274959081F, 0.3284274465F, 0.3293596671F, 0.3302925657F,
+    0.3312261382F, 0.3321603804F, 0.3330952882F, 0.3340308574F,
+    0.3349670838F, 0.3359039634F, 0.3368414919F, 0.3377796651F,
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+    0.9679269921F, 0.9681493174F, 0.9683705694F, 0.9685907506F,
+    0.9688098636F, 0.9690279108F, 0.9692448948F, 0.9694608182F,
+    0.9696756836F, 0.9698894934F, 0.9701022503F, 0.9703139569F,
+    0.9705246156F, 0.9707342291F, 0.9709428000F, 0.9711503309F,
+    0.9713568243F, 0.9715622829F, 0.9717667093F, 0.9719701060F,
+    0.9721724757F, 0.9723738210F, 0.9725741446F, 0.9727734490F,
+    0.9729717369F, 0.9731690109F, 0.9733652737F, 0.9735605279F,
+    0.9737547762F, 0.9739480212F, 0.9741402656F, 0.9743315120F,
+    0.9745217631F, 0.9747110216F, 0.9748992901F, 0.9750865714F,
+    0.9752728681F, 0.9754581829F, 0.9756425184F, 0.9758258775F,
+    0.9760082627F, 0.9761896768F, 0.9763701224F, 0.9765496024F,
+    0.9767281193F, 0.9769056760F, 0.9770822751F, 0.9772579193F,
+    0.9774326114F, 0.9776063542F, 0.9777791502F, 0.9779510023F,
+    0.9781219133F, 0.9782918858F, 0.9784609226F, 0.9786290264F,
+    0.9787962000F, 0.9789624461F, 0.9791277676F, 0.9792921671F,
+    0.9794556474F, 0.9796182113F, 0.9797798615F, 0.9799406009F,
+    0.9801004321F, 0.9802593580F, 0.9804173813F, 0.9805745049F,
+    0.9807307314F, 0.9808860637F, 0.9810405046F, 0.9811940568F,
+    0.9813467232F, 0.9814985065F, 0.9816494095F, 0.9817994351F,
+    0.9819485860F, 0.9820968650F, 0.9822442750F, 0.9823908186F,
+    0.9825364988F, 0.9826813184F, 0.9828252801F, 0.9829683868F,
+    0.9831106413F, 0.9832520463F, 0.9833926048F, 0.9835323195F,
+    0.9836711932F, 0.9838092288F, 0.9839464291F, 0.9840827969F,
+    0.9842183351F, 0.9843530464F, 0.9844869337F, 0.9846199998F,
+    0.9847522475F, 0.9848836798F, 0.9850142993F, 0.9851441090F,
+    0.9852731117F, 0.9854013101F, 0.9855287073F, 0.9856553058F,
+    0.9857811087F, 0.9859061188F, 0.9860303388F, 0.9861537717F,
+    0.9862764202F, 0.9863982872F, 0.9865193756F, 0.9866396882F,
+    0.9867592277F, 0.9868779972F, 0.9869959993F, 0.9871132370F,
+    0.9872297131F, 0.9873454304F, 0.9874603918F, 0.9875746001F,
+    0.9876880581F, 0.9878007688F, 0.9879127348F, 0.9880239592F,
+    0.9881344447F, 0.9882441941F, 0.9883532104F, 0.9884614962F,
+    0.9885690546F, 0.9886758883F, 0.9887820001F, 0.9888873930F,
+    0.9889920697F, 0.9890960331F, 0.9891992859F, 0.9893018312F,
+    0.9894036716F, 0.9895048100F, 0.9896052493F, 0.9897049923F,
+    0.9898040418F, 0.9899024006F, 0.9900000717F, 0.9900970577F,
+    0.9901933616F, 0.9902889862F, 0.9903839343F, 0.9904782087F,
+    0.9905718122F, 0.9906647477F, 0.9907570180F, 0.9908486259F,
+    0.9909395742F, 0.9910298658F, 0.9911195034F, 0.9912084899F,
+    0.9912968281F, 0.9913845208F, 0.9914715708F, 0.9915579810F,
+    0.9916437540F, 0.9917288928F, 0.9918134001F, 0.9918972788F,
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+    0.9929317631F, 0.9930071333F, 0.9930819167F, 0.9931561158F,
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+    0.9943307950F, 0.9943949494F, 0.9944585717F, 0.9945216645F,
+    0.9945842307F, 0.9946462728F, 0.9947077936F, 0.9947687957F,
+    0.9948292820F, 0.9948892550F, 0.9949487174F, 0.9950076719F,
+    0.9950661212F, 0.9951240679F, 0.9951815148F, 0.9952384645F,
+    0.9952949196F, 0.9953508828F, 0.9954063568F, 0.9954613442F,
+    0.9955158476F, 0.9955698697F, 0.9956234132F, 0.9956764806F,
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+    0.9965083228F, 0.9965532668F, 0.9965977840F, 0.9966418768F,
+    0.9966855479F, 0.9967287998F, 0.9967716350F, 0.9968140559F,
+    0.9968560653F, 0.9968976655F, 0.9969388591F, 0.9969796485F,
+    0.9970200363F, 0.9970600250F, 0.9970996170F, 0.9971388149F,
+    0.9971776211F, 0.9972160380F, 0.9972540683F, 0.9972917142F,
+    0.9973289783F, 0.9973658631F, 0.9974023709F, 0.9974385042F,
+    0.9974742655F, 0.9975096571F, 0.9975446816F, 0.9975793413F,
+    0.9976136386F, 0.9976475759F, 0.9976811557F, 0.9977143803F,
+    0.9977472521F, 0.9977797736F, 0.9978119470F, 0.9978437748F,
+    0.9978752593F, 0.9979064029F, 0.9979372079F, 0.9979676768F,
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+    0.9981150595F, 0.9981435600F, 0.9981717406F, 0.9981996035F,
+    0.9982271511F, 0.9982543856F, 0.9982813093F, 0.9983079246F,
+    0.9983342336F, 0.9983602386F, 0.9983859418F, 0.9984113456F,
+    0.9984364522F, 0.9984612638F, 0.9984857825F, 0.9985100108F,
+    0.9985339507F, 0.9985576044F, 0.9985809743F, 0.9986040624F,
+    0.9986268710F, 0.9986494022F, 0.9986716583F, 0.9986936413F,
+    0.9987153535F, 0.9987367969F, 0.9987579738F, 0.9987788864F,
+    0.9987995366F, 0.9988199267F, 0.9988400587F, 0.9988599348F,
+    0.9988795572F, 0.9988989278F, 0.9989180487F, 0.9989369222F,
+    0.9989555501F, 0.9989739347F, 0.9989920780F, 0.9990099820F,
+    0.9990276487F, 0.9990450803F, 0.9990622787F, 0.9990792460F,
+    0.9990959841F, 0.9991124952F, 0.9991287812F, 0.9991448440F,
+    0.9991606858F, 0.9991763084F, 0.9991917139F, 0.9992069042F,
+    0.9992218813F, 0.9992366471F, 0.9992512035F, 0.9992655525F,
+    0.9992796961F, 0.9992936361F, 0.9993073744F, 0.9993209131F,
+    0.9993342538F, 0.9993473987F, 0.9993603494F, 0.9993731080F,
+    0.9993856762F, 0.9993980559F, 0.9994102490F, 0.9994222573F,
+    0.9994340827F, 0.9994457269F, 0.9994571918F, 0.9994684793F,
+    0.9994795910F, 0.9994905288F, 0.9995012945F, 0.9995118898F,
+    0.9995223165F, 0.9995325765F, 0.9995426713F, 0.9995526029F,
+    0.9995623728F, 0.9995719829F, 0.9995814349F, 0.9995907304F,
+    0.9995998712F, 0.9996088590F, 0.9996176954F, 0.9996263821F,
+    0.9996349208F, 0.9996433132F, 0.9996515609F, 0.9996596656F,
+    0.9996676288F, 0.9996754522F, 0.9996831375F, 0.9996906862F,
+    0.9996981000F, 0.9997053804F, 0.9997125290F, 0.9997195474F,
+    0.9997264371F, 0.9997331998F, 0.9997398369F, 0.9997463500F,
+    0.9997527406F, 0.9997590103F, 0.9997651606F, 0.9997711930F,
+    0.9997771089F, 0.9997829098F, 0.9997885973F, 0.9997941728F,
+    0.9997996378F, 0.9998049936F, 0.9998102419F, 0.9998153839F,
+    0.9998204211F, 0.9998253550F, 0.9998301868F, 0.9998349182F,
+    0.9998395503F, 0.9998440847F, 0.9998485226F, 0.9998528654F,
+    0.9998571146F, 0.9998612713F, 0.9998653370F, 0.9998693130F,
+    0.9998732007F, 0.9998770012F, 0.9998807159F, 0.9998843461F,
+    0.9998878931F, 0.9998913581F, 0.9998947424F, 0.9998980473F,
+    0.9999012740F, 0.9999044237F, 0.9999074976F, 0.9999104971F,
+    0.9999134231F, 0.9999162771F, 0.9999190601F, 0.9999217733F,
+    0.9999244179F, 0.9999269950F, 0.9999295058F, 0.9999319515F,
+    0.9999343332F, 0.9999366519F, 0.9999389088F, 0.9999411050F,
+    0.9999432416F, 0.9999453196F, 0.9999473402F, 0.9999493044F,
+    0.9999512132F, 0.9999530677F, 0.9999548690F, 0.9999566180F,
+    0.9999583157F, 0.9999599633F, 0.9999615616F, 0.9999631116F,
+    0.9999646144F, 0.9999660709F, 0.9999674820F, 0.9999688487F,
+    0.9999701719F, 0.9999714526F, 0.9999726917F, 0.9999738900F,
+    0.9999750486F, 0.9999761682F, 0.9999772497F, 0.9999782941F,
+    0.9999793021F, 0.9999802747F, 0.9999812126F, 0.9999821167F,
+    0.9999829878F, 0.9999838268F, 0.9999846343F, 0.9999854113F,
+    0.9999861584F, 0.9999868765F, 0.9999875664F, 0.9999882287F,
+    0.9999888642F, 0.9999894736F, 0.9999900577F, 0.9999906172F,
+    0.9999911528F, 0.9999916651F, 0.9999921548F, 0.9999926227F,
+    0.9999930693F, 0.9999934954F, 0.9999939015F, 0.9999942883F,
+    0.9999946564F, 0.9999950064F, 0.9999953390F, 0.9999956547F,
+    0.9999959541F, 0.9999962377F, 0.9999965062F, 0.9999967601F,
+    0.9999969998F, 0.9999972260F, 0.9999974392F, 0.9999976399F,
+    0.9999978285F, 0.9999980056F, 0.9999981716F, 0.9999983271F,
+    0.9999984724F, 0.9999986081F, 0.9999987345F, 0.9999988521F,
+    0.9999989613F, 0.9999990625F, 0.9999991562F, 0.9999992426F,
+    0.9999993223F, 0.9999993954F, 0.9999994625F, 0.9999995239F,
+    0.9999995798F, 0.9999996307F, 0.9999996768F, 0.9999997184F,
+    0.9999997559F, 0.9999997895F, 0.9999998195F, 0.9999998462F,
+    0.9999998698F, 0.9999998906F, 0.9999999088F, 0.9999999246F,
+    0.9999999383F, 0.9999999500F, 0.9999999600F, 0.9999999684F,
+    0.9999999754F, 0.9999999811F, 0.9999999858F, 0.9999999896F,
+    0.9999999925F, 0.9999999948F, 0.9999999965F, 0.9999999978F,
+    0.9999999986F, 0.9999999992F, 0.9999999996F, 0.9999999998F,
+    0.9999999999F, 1.0000000000F, 1.0000000000F, 1.0000000000F,
+};
+
+DECLARE_ALIGNED(16, static const float, vwin8192)[4096] = {
+    0.0000000578F, 0.0000005198F, 0.0000014438F, 0.0000028299F,
+    0.0000046780F, 0.0000069882F, 0.0000097604F, 0.0000129945F,
+    0.0000166908F, 0.0000208490F, 0.0000254692F, 0.0000305515F,
+    0.0000360958F, 0.0000421021F, 0.0000485704F, 0.0000555006F,
+    0.0000628929F, 0.0000707472F, 0.0000790635F, 0.0000878417F,
+    0.0000970820F, 0.0001067842F, 0.0001169483F, 0.0001275744F,
+    0.0001386625F, 0.0001502126F, 0.0001622245F, 0.0001746984F,
+    0.0001876343F, 0.0002010320F, 0.0002148917F, 0.0002292132F,
+    0.0002439967F, 0.0002592421F, 0.0002749493F, 0.0002911184F,
+    0.0003077493F, 0.0003248421F, 0.0003423967F, 0.0003604132F,
+    0.0003788915F, 0.0003978316F, 0.0004172335F, 0.0004370971F,
+    0.0004574226F, 0.0004782098F, 0.0004994587F, 0.0005211694F,
+    0.0005433418F, 0.0005659759F, 0.0005890717F, 0.0006126292F,
+    0.0006366484F, 0.0006611292F, 0.0006860716F, 0.0007114757F,
+    0.0007373414F, 0.0007636687F, 0.0007904576F, 0.0008177080F,
+    0.0008454200F, 0.0008735935F, 0.0009022285F, 0.0009313250F,
+    0.0009608830F, 0.0009909025F, 0.0010213834F, 0.0010523257F,
+    0.0010837295F, 0.0011155946F, 0.0011479211F, 0.0011807090F,
+    0.0012139582F, 0.0012476687F, 0.0012818405F, 0.0013164736F,
+    0.0013515679F, 0.0013871235F, 0.0014231402F, 0.0014596182F,
+    0.0014965573F, 0.0015339576F, 0.0015718190F, 0.0016101415F,
+    0.0016489251F, 0.0016881698F, 0.0017278754F, 0.0017680421F,
+    0.0018086698F, 0.0018497584F, 0.0018913080F, 0.0019333185F,
+    0.0019757898F, 0.0020187221F, 0.0020621151F, 0.0021059690F,
+    0.0021502837F, 0.0021950591F, 0.0022402953F, 0.0022859921F,
+    0.0023321497F, 0.0023787679F, 0.0024258467F, 0.0024733861F,
+    0.0025213861F, 0.0025698466F, 0.0026187676F, 0.0026681491F,
+    0.0027179911F, 0.0027682935F, 0.0028190562F, 0.0028702794F,
+    0.0029219628F, 0.0029741066F, 0.0030267107F, 0.0030797749F,
+    0.0031332994F, 0.0031872841F, 0.0032417289F, 0.0032966338F,
+    0.0033519988F, 0.0034078238F, 0.0034641089F, 0.0035208539F,
+    0.0035780589F, 0.0036357237F, 0.0036938485F, 0.0037524331F,
+    0.0038114775F, 0.0038709817F, 0.0039309456F, 0.0039913692F,
+    0.0040522524F, 0.0041135953F, 0.0041753978F, 0.0042376599F,
+    0.0043003814F, 0.0043635624F, 0.0044272029F, 0.0044913028F,
+    0.0045558620F, 0.0046208806F, 0.0046863585F, 0.0047522955F,
+    0.0048186919F, 0.0048855473F, 0.0049528619F, 0.0050206356F,
+    0.0050888684F, 0.0051575601F, 0.0052267108F, 0.0052963204F,
+    0.0053663890F, 0.0054369163F, 0.0055079025F, 0.0055793474F,
+    0.0056512510F, 0.0057236133F, 0.0057964342F, 0.0058697137F,
+    0.0059434517F, 0.0060176482F, 0.0060923032F, 0.0061674166F,
+    0.0062429883F, 0.0063190183F, 0.0063955066F, 0.0064724532F,
+    0.0065498579F, 0.0066277207F, 0.0067060416F, 0.0067848205F,
+    0.0068640575F, 0.0069437523F, 0.0070239051F, 0.0071045157F,
+    0.0071855840F, 0.0072671102F, 0.0073490940F, 0.0074315355F,
+    0.0075144345F, 0.0075977911F, 0.0076816052F, 0.0077658768F,
+    0.0078506057F, 0.0079357920F, 0.0080214355F, 0.0081075363F,
+    0.0081940943F, 0.0082811094F, 0.0083685816F, 0.0084565108F,
+    0.0085448970F, 0.0086337401F, 0.0087230401F, 0.0088127969F,
+    0.0089030104F, 0.0089936807F, 0.0090848076F, 0.0091763911F,
+    0.0092684311F, 0.0093609276F, 0.0094538805F, 0.0095472898F,
+    0.0096411554F, 0.0097354772F, 0.0098302552F, 0.0099254894F,
+    0.0100211796F, 0.0101173259F, 0.0102139281F, 0.0103109863F,
+    0.0104085002F, 0.0105064700F, 0.0106048955F, 0.0107037766F,
+    0.0108031133F, 0.0109029056F, 0.0110031534F, 0.0111038565F,
+    0.0112050151F, 0.0113066289F, 0.0114086980F, 0.0115112222F,
+    0.0116142015F, 0.0117176359F, 0.0118215252F, 0.0119258695F,
+    0.0120306686F, 0.0121359225F, 0.0122416312F, 0.0123477944F,
+    0.0124544123F, 0.0125614847F, 0.0126690116F, 0.0127769928F,
+    0.0128854284F, 0.0129943182F, 0.0131036623F, 0.0132134604F,
+    0.0133237126F, 0.0134344188F, 0.0135455790F, 0.0136571929F,
+    0.0137692607F, 0.0138817821F, 0.0139947572F, 0.0141081859F,
+    0.0142220681F, 0.0143364037F, 0.0144511927F, 0.0145664350F,
+    0.0146821304F, 0.0147982791F, 0.0149148808F, 0.0150319355F,
+    0.0151494431F, 0.0152674036F, 0.0153858168F, 0.0155046828F,
+    0.0156240014F, 0.0157437726F, 0.0158639962F, 0.0159846723F,
+    0.0161058007F, 0.0162273814F, 0.0163494142F, 0.0164718991F,
+    0.0165948361F, 0.0167182250F, 0.0168420658F, 0.0169663584F,
+    0.0170911027F, 0.0172162987F, 0.0173419462F, 0.0174680452F,
+    0.0175945956F, 0.0177215974F, 0.0178490504F, 0.0179769545F,
+    0.0181053098F, 0.0182341160F, 0.0183633732F, 0.0184930812F,
+    0.0186232399F, 0.0187538494F, 0.0188849094F, 0.0190164200F,
+    0.0191483809F, 0.0192807923F, 0.0194136539F, 0.0195469656F,
+    0.0196807275F, 0.0198149394F, 0.0199496012F, 0.0200847128F,
+    0.0202202742F, 0.0203562853F, 0.0204927460F, 0.0206296561F,
+    0.0207670157F, 0.0209048245F, 0.0210430826F, 0.0211817899F,
+    0.0213209462F, 0.0214605515F, 0.0216006057F, 0.0217411086F,
+    0.0218820603F, 0.0220234605F, 0.0221653093F, 0.0223076066F,
+    0.0224503521F, 0.0225935459F, 0.0227371879F, 0.0228812779F,
+    0.0230258160F, 0.0231708018F, 0.0233162355F, 0.0234621169F,
+    0.0236084459F, 0.0237552224F, 0.0239024462F, 0.0240501175F,
+    0.0241982359F, 0.0243468015F, 0.0244958141F, 0.0246452736F,
+    0.0247951800F, 0.0249455331F, 0.0250963329F, 0.0252475792F,
+    0.0253992720F, 0.0255514111F, 0.0257039965F, 0.0258570281F,
+    0.0260105057F, 0.0261644293F, 0.0263187987F, 0.0264736139F,
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+    0.9998191715F, 0.9998216642F, 0.9998241311F, 0.9998265724F,
+    0.9998289884F, 0.9998313790F, 0.9998337447F, 0.9998360854F,
+    0.9998384015F, 0.9998406930F, 0.9998429602F, 0.9998452031F,
+    0.9998474221F, 0.9998496171F, 0.9998517885F, 0.9998539364F,
+    0.9998560610F, 0.9998581624F, 0.9998602407F, 0.9998622962F,
+    0.9998643291F, 0.9998663394F, 0.9998683274F, 0.9998702932F,
+    0.9998722370F, 0.9998741589F, 0.9998760591F, 0.9998779378F,
+    0.9998797952F, 0.9998816313F, 0.9998834464F, 0.9998852406F,
+    0.9998870141F, 0.9998887670F, 0.9998904995F, 0.9998922117F,
+    0.9998939039F, 0.9998955761F, 0.9998972285F, 0.9998988613F,
+    0.9999004746F, 0.9999020686F, 0.9999036434F, 0.9999051992F,
+    0.9999067362F, 0.9999082544F, 0.9999097541F, 0.9999112354F,
+    0.9999126984F, 0.9999141433F, 0.9999155703F, 0.9999169794F,
+    0.9999183709F, 0.9999197449F, 0.9999211014F, 0.9999224408F,
+    0.9999237631F, 0.9999250684F, 0.9999263570F, 0.9999276289F,
+    0.9999288843F, 0.9999301233F, 0.9999313461F, 0.9999325529F,
+    0.9999337437F, 0.9999349187F, 0.9999360780F, 0.9999372218F,
+    0.9999383503F, 0.9999394635F, 0.9999405616F, 0.9999416447F,
+    0.9999427129F, 0.9999437665F, 0.9999448055F, 0.9999458301F,
+    0.9999468404F, 0.9999478365F, 0.9999488185F, 0.9999497867F,
+    0.9999507411F, 0.9999516819F, 0.9999526091F, 0.9999535230F,
+    0.9999544236F, 0.9999553111F, 0.9999561856F, 0.9999570472F,
+    0.9999578960F, 0.9999587323F, 0.9999595560F, 0.9999603674F,
+    0.9999611666F, 0.9999619536F, 0.9999627286F, 0.9999634917F,
+    0.9999642431F, 0.9999649828F, 0.9999657110F, 0.9999664278F,
+    0.9999671334F, 0.9999678278F, 0.9999685111F, 0.9999691835F,
+    0.9999698451F, 0.9999704960F, 0.9999711364F, 0.9999717662F,
+    0.9999723858F, 0.9999729950F, 0.9999735942F, 0.9999741834F,
+    0.9999747626F, 0.9999753321F, 0.9999758919F, 0.9999764421F,
+    0.9999769828F, 0.9999775143F, 0.9999780364F, 0.9999785495F,
+    0.9999790535F, 0.9999795485F, 0.9999800348F, 0.9999805124F,
+    0.9999809813F, 0.9999814417F, 0.9999818938F, 0.9999823375F,
+    0.9999827731F, 0.9999832005F, 0.9999836200F, 0.9999840316F,
+    0.9999844353F, 0.9999848314F, 0.9999852199F, 0.9999856008F,
+    0.9999859744F, 0.9999863407F, 0.9999866997F, 0.9999870516F,
+    0.9999873965F, 0.9999877345F, 0.9999880656F, 0.9999883900F,
+    0.9999887078F, 0.9999890190F, 0.9999893237F, 0.9999896220F,
+    0.9999899140F, 0.9999901999F, 0.9999904796F, 0.9999907533F,
+    0.9999910211F, 0.9999912830F, 0.9999915391F, 0.9999917896F,
+    0.9999920345F, 0.9999922738F, 0.9999925077F, 0.9999927363F,
+    0.9999929596F, 0.9999931777F, 0.9999933907F, 0.9999935987F,
+    0.9999938018F, 0.9999940000F, 0.9999941934F, 0.9999943820F,
+    0.9999945661F, 0.9999947456F, 0.9999949206F, 0.9999950912F,
+    0.9999952575F, 0.9999954195F, 0.9999955773F, 0.9999957311F,
+    0.9999958807F, 0.9999960265F, 0.9999961683F, 0.9999963063F,
+    0.9999964405F, 0.9999965710F, 0.9999966979F, 0.9999968213F,
+    0.9999969412F, 0.9999970576F, 0.9999971707F, 0.9999972805F,
+    0.9999973871F, 0.9999974905F, 0.9999975909F, 0.9999976881F,
+    0.9999977824F, 0.9999978738F, 0.9999979624F, 0.9999980481F,
+    0.9999981311F, 0.9999982115F, 0.9999982892F, 0.9999983644F,
+    0.9999984370F, 0.9999985072F, 0.9999985750F, 0.9999986405F,
+    0.9999987037F, 0.9999987647F, 0.9999988235F, 0.9999988802F,
+    0.9999989348F, 0.9999989873F, 0.9999990379F, 0.9999990866F,
+    0.9999991334F, 0.9999991784F, 0.9999992217F, 0.9999992632F,
+    0.9999993030F, 0.9999993411F, 0.9999993777F, 0.9999994128F,
+    0.9999994463F, 0.9999994784F, 0.9999995091F, 0.9999995384F,
+    0.9999995663F, 0.9999995930F, 0.9999996184F, 0.9999996426F,
+    0.9999996657F, 0.9999996876F, 0.9999997084F, 0.9999997282F,
+    0.9999997469F, 0.9999997647F, 0.9999997815F, 0.9999997973F,
+    0.9999998123F, 0.9999998265F, 0.9999998398F, 0.9999998524F,
+    0.9999998642F, 0.9999998753F, 0.9999998857F, 0.9999998954F,
+    0.9999999045F, 0.9999999130F, 0.9999999209F, 0.9999999282F,
+    0.9999999351F, 0.9999999414F, 0.9999999472F, 0.9999999526F,
+    0.9999999576F, 0.9999999622F, 0.9999999664F, 0.9999999702F,
+    0.9999999737F, 0.9999999769F, 0.9999999798F, 0.9999999824F,
+    0.9999999847F, 0.9999999868F, 0.9999999887F, 0.9999999904F,
+    0.9999999919F, 0.9999999932F, 0.9999999943F, 0.9999999953F,
+    0.9999999961F, 0.9999999969F, 0.9999999975F, 0.9999999980F,
+    0.9999999985F, 0.9999999988F, 0.9999999991F, 0.9999999993F,
+    0.9999999995F, 0.9999999997F, 0.9999999998F, 0.9999999999F,
+    0.9999999999F, 1.0000000000F, 1.0000000000F, 1.0000000000F,
+    1.0000000000F, 1.0000000000F, 1.0000000000F, 1.0000000000F,
+};
+
+const float ff_vorbis_floor1_inverse_db_table[256]={
+    1.0649863e-07F, 1.1341951e-07F, 1.2079015e-07F, 1.2863978e-07F,
+    1.3699951e-07F, 1.4590251e-07F, 1.5538408e-07F, 1.6548181e-07F,
+    1.7623575e-07F, 1.8768855e-07F, 1.9988561e-07F, 2.128753e-07F,
+    2.2670913e-07F, 2.4144197e-07F, 2.5713223e-07F, 2.7384213e-07F,
+    2.9163793e-07F, 3.1059021e-07F, 3.3077411e-07F, 3.5226968e-07F,
+    3.7516214e-07F, 3.9954229e-07F, 4.2550680e-07F, 4.5315863e-07F,
+    4.8260743e-07F, 5.1396998e-07F, 5.4737065e-07F, 5.8294187e-07F,
+    6.2082472e-07F, 6.6116941e-07F, 7.0413592e-07F, 7.4989464e-07F,
+    7.9862701e-07F, 8.5052630e-07F, 9.0579828e-07F, 9.6466216e-07F,
+    1.0273513e-06F, 1.0941144e-06F, 1.1652161e-06F, 1.2409384e-06F,
+    1.3215816e-06F, 1.4074654e-06F, 1.4989305e-06F, 1.5963394e-06F,
+    1.7000785e-06F, 1.8105592e-06F, 1.9282195e-06F, 2.0535261e-06F,
+    2.1869758e-06F, 2.3290978e-06F, 2.4804557e-06F, 2.6416497e-06F,
+    2.8133190e-06F, 2.9961443e-06F, 3.1908506e-06F, 3.3982101e-06F,
+    3.6190449e-06F, 3.8542308e-06F, 4.1047004e-06F, 4.3714470e-06F,
+    4.6555282e-06F, 4.9580707e-06F, 5.2802740e-06F, 5.6234160e-06F,
+    5.9888572e-06F, 6.3780469e-06F, 6.7925283e-06F, 7.2339451e-06F,
+    7.7040476e-06F, 8.2047000e-06F, 8.7378876e-06F, 9.3057248e-06F,
+    9.9104632e-06F, 1.0554501e-05F, 1.1240392e-05F, 1.1970856e-05F,
+    1.2748789e-05F, 1.3577278e-05F, 1.4459606e-05F, 1.5399272e-05F,
+    1.6400004e-05F, 1.7465768e-05F, 1.8600792e-05F, 1.9809576e-05F,
+    2.1096914e-05F, 2.2467911e-05F, 2.3928002e-05F, 2.5482978e-05F,
+    2.7139006e-05F, 2.8902651e-05F, 3.0780908e-05F, 3.2781225e-05F,
+    3.4911534e-05F, 3.7180282e-05F, 3.9596466e-05F, 4.2169667e-05F,
+    4.4910090e-05F, 4.7828601e-05F, 5.0936773e-05F, 5.4246931e-05F,
+    5.7772202e-05F, 6.1526565e-05F, 6.5524908e-05F, 6.9783085e-05F,
+    7.4317983e-05F, 7.9147585e-05F, 8.4291040e-05F, 8.9768747e-05F,
+    9.5602426e-05F, 0.00010181521F, 0.00010843174F, 0.00011547824F,
+    0.00012298267F, 0.00013097477F, 0.00013948625F, 0.00014855085F,
+    0.00015820453F, 0.00016848555F, 0.00017943469F, 0.00019109536F,
+    0.00020351382F, 0.00021673929F, 0.00023082423F, 0.00024582449F,
+    0.00026179955F, 0.00027881276F, 0.00029693158F, 0.00031622787F,
+    0.00033677814F, 0.00035866388F, 0.00038197188F, 0.00040679456F,
+    0.00043323036F, 0.00046138411F, 0.00049136745F, 0.00052329927F,
+    0.00055730621F, 0.00059352311F, 0.00063209358F, 0.00067317058F,
+    0.00071691700F, 0.00076350630F, 0.00081312324F, 0.00086596457F,
+    0.00092223983F, 0.00098217216F, 0.0010459992F,  0.0011139742F,
+    0.0011863665F,  0.0012634633F,  0.0013455702F,  0.0014330129F,
+    0.0015261382F,  0.0016253153F,  0.0017309374F,  0.0018434235F,
+    0.0019632195F,  0.0020908006F,  0.0022266726F,  0.0023713743F,
+    0.0025254795F,  0.0026895994F,  0.0028643847F,  0.0030505286F,
+    0.0032487691F,  0.0034598925F,  0.0036847358F,  0.0039241906F,
+    0.0041792066F,  0.0044507950F,  0.0047400328F,  0.0050480668F,
+    0.0053761186F,  0.0057254891F,  0.0060975636F,  0.0064938176F,
+    0.0069158225F,  0.0073652516F,  0.0078438871F,  0.0083536271F,
+    0.0088964928F,  0.009474637F,   0.010090352F,   0.010746080F,
+    0.011444421F,   0.012188144F,   0.012980198F,   0.013823725F,
+    0.014722068F,   0.015678791F,   0.016697687F,   0.017782797F,
+    0.018938423F,   0.020169149F,   0.021479854F,   0.022875735F,
+    0.024362330F,   0.025945531F,   0.027631618F,   0.029427276F,
+    0.031339626F,   0.033376252F,   0.035545228F,   0.037855157F,
+    0.040315199F,   0.042935108F,   0.045725273F,   0.048696758F,
+    0.051861348F,   0.055231591F,   0.058820850F,   0.062643361F,
+    0.066714279F,   0.071049749F,   0.075666962F,   0.080584227F,
+    0.085821044F,   0.091398179F,   0.097337747F,   0.10366330F,
+    0.11039993F,    0.11757434F,    0.12521498F,    0.13335215F,
+    0.14201813F,    0.15124727F,    0.16107617F,    0.17154380F,
+    0.18269168F,    0.19456402F,    0.20720788F,    0.22067342F,
+    0.23501402F,    0.25028656F,    0.26655159F,    0.28387361F,
+    0.30232132F,    0.32196786F,    0.34289114F,    0.36517414F,
+    0.38890521F,    0.41417847F,    0.44109412F,    0.46975890F,
+    0.50028648F,    0.53279791F,    0.56742212F,    0.60429640F,
+    0.64356699F,    0.68538959F,    0.72993007F,    0.77736504F,
+    0.82788260F,    0.88168307F,    0.9389798F,     1.F,
+};
+
+const float * const ff_vorbis_vwin[8] = {
+      vwin64,  vwin128,  vwin256,  vwin512,
+    vwin1024, vwin2048, vwin4096, vwin8192
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_enc_data.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_enc_data.h
new file mode 100644
index 000000000..a51aaec97
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_enc_data.h
@@ -0,0 +1,504 @@
+/*
+ * copyright (c) 2006 Oded Shimon <ods15@ods15.dyndns.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VORBIS_ENC_DATA_H
+#define AVCODEC_VORBIS_ENC_DATA_H
+
+#include <stdint.h>
+
+static const uint8_t codebook0[] = {
+    2, 10,  8, 14,  7, 12, 11, 14,  1,  5,  3,  7,  4,  9,  7, 13,
+};
+
+static const uint8_t codebook1[] = {
+    1,  4,  2,  6,  3,  7,  5,  7,
+};
+
+static const uint8_t codebook2[] = {
+     1,  5,  7, 21,  5,  8,  9, 21, 10,  9, 12, 20, 20, 16, 20,
+    20,  4,  8,  9, 20,  6,  8,  9, 20, 11, 11, 13, 20, 20, 15,
+    17, 20,  9, 11, 14, 20,  8, 10, 15, 20, 11, 13, 15, 20, 20,
+    20, 20, 20, 20, 20, 20, 20, 13, 20, 20, 20, 18, 18, 20, 20,
+    20, 20, 20, 20,  3,  6,  8, 20,  6,  7,  9, 20, 10,  9, 12,
+    20, 20, 20, 20, 20,  5,  7,  9, 20,  6,  6,  9, 20, 10,  9,
+    12, 20, 20, 20, 20, 20,  8, 10, 13, 20,  8,  9, 12, 20, 11,
+    10, 12, 20, 20, 20, 20, 20, 18, 20, 20, 20, 15, 17, 18, 20,
+    18, 17, 18, 20, 20, 20, 20, 20,  7, 10, 12, 20,  8,  9, 11,
+    20, 14, 13, 14, 20, 20, 20, 20, 20,  6,  9, 12, 20,  7,  8,
+    11, 20, 12, 11, 13, 20, 20, 20, 20, 20,  9, 11, 15, 20,  8,
+    10, 14, 20, 12, 11, 14, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+    20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 11, 16, 18,
+    20, 15, 15, 17, 20, 20, 17, 20, 20, 20, 20, 20, 20,  9, 14,
+    16, 20, 12, 12, 15, 20, 17, 15, 18, 20, 20, 20, 20, 20, 16,
+    19, 18, 20, 15, 16, 20, 20, 17, 17, 20, 20, 20, 20, 20, 20,
+    20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+    20,
+};
+
+static const uint8_t codebook3[] = {
+     2,  3,  7, 13,  4,  4,  7, 15,  8,  6,  9, 17, 21, 16, 15,
+    21,  2,  5,  7, 11,  5,  5,  7, 14,  9,  7, 10, 16, 17, 15,
+    16, 21,  4,  7, 10, 17,  7,  7,  9, 15, 11,  9, 11, 16, 21,
+    18, 15, 21, 18, 21, 21, 21, 15, 17, 17, 19, 21, 19, 18, 20,
+    21, 21, 21, 20,
+};
+
+static const uint8_t codebook4[] = {
+     5,  5,  5,  5,  6,  5,  6,  5,  6,  5,  6,  5,  6,  5,  6,
+     5,  6,  5,  6,  5,  6,  5,  6,  5,  7,  5,  7,  5,  7,  5,
+     7,  5,  8,  6,  8,  6,  8,  6,  9,  6,  9,  6, 10,  6, 10,
+     6, 11,  6, 11,  7, 11,  7, 12,  7, 12,  7, 12,  7, 12,  7,
+    12,  7, 12,  7, 12,  7, 12,  8, 13,  8, 12,  8, 12,  8, 13,
+     8, 13,  9, 13,  9, 13,  9, 13,  9, 12, 10, 12, 10, 13, 10,
+    14, 11, 14, 12, 14, 13, 14, 13, 14, 14, 15, 16, 15, 15, 15,
+    14, 15, 17, 21, 22, 22, 21, 22, 22, 22, 22, 22, 22, 21, 21,
+    21, 21, 21, 21, 21, 21, 21, 21,
+};
+
+static const uint8_t codebook5[] = {
+     2,  5,  5,  4,  5,  4,  5,  4,  5,  4,  6,  5,  6,  5,  6,
+     5,  6,  5,  7,  5,  7,  6,  8,  6,  8,  6,  8,  6,  9,  6,
+     9,  6,
+};
+
+static const uint8_t codebook6[] = {
+     8,  5,  8,  4,  9,  4,  9,  4,  9,  4,  9,  4,  9,  4,  9,
+     4,  9,  4,  9,  4,  9,  4,  8,  4,  8,  4,  9,  5,  9,  5,
+     9,  5,  9,  5,  9,  6, 10,  6, 10,  7, 10,  8, 11,  9, 11,
+    11, 12, 13, 12, 14, 13, 15, 13, 15, 14, 16, 14, 17, 15, 17,
+    15, 15, 16, 16, 15, 16, 16, 16, 15, 18, 16, 15, 17, 17, 19,
+    19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19,
+};
+
+static const uint8_t codebook7[] = {
+     1,  5,  5,  5,  5,  5,  5,  5,  6,  5,  6,  5,  6,  5,  6,
+     5,  6,  6,  7,  7,  7,  7,  8,  7,  8,  8,  9,  8, 10,  9,
+    10,  9,
+};
+
+static const uint8_t codebook8[] = {
+     4,  3,  4,  3,  4,  4,  5,  4,  5,  4,  5,  5,  6,  5,  6,
+     5,  7,  5,  7,  6,  7,  6,  8,  7,  8,  7,  8,  7,  9,  8,
+     9,  9,  9,  9, 10, 10, 10, 11,  9, 12,  9, 12,  9, 15, 10,
+    14,  9, 13, 10, 13, 10, 12, 10, 12, 10, 13, 10, 12, 11, 13,
+    11, 14, 12, 13, 13, 14, 14, 13, 14, 15, 14, 16, 13, 13, 14,
+    16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+    16, 16, 16, 16, 15, 15,
+};
+
+static const uint8_t codebook9[] = {
+     4,  5,  4,  5,  3,  5,  3,  5,  3,  5,  4,  4,  4,  4,  5,
+     5,  5,
+};
+
+static const uint8_t codebook10[] = {
+     3,  3,  4,  3,  4,  4,  4,  4,  5,  5,  5,  5,  5,  6,  5,
+     7,  5,  8,  6,  8,  6,  9,  7, 10,  7, 10,  8, 10,  8, 11,
+     9, 11,
+};
+
+static const uint8_t codebook11[] = {
+   3,  7,  3,  8,  3, 10,  3,  8,  3,  9,  3,  8,  4,  9,  4,
+   9,  5,  9,  6, 10,  6,  9,  7, 11,  7, 12,  9, 13, 10, 13,
+  12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+  12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+  12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+  12, 12, 12,
+};
+
+static const uint8_t codebook12[] = {
+     4,  5,  4,  5,  4,  5,  4,  5,  3,  5,  3,  5,  3,  5,  4,
+     5,  4,
+};
+
+static const uint8_t codebook13[] = {
+     4,  2,  4,  2,  5,  3,  5,  4,  6,  6,  6,  7,  7,  8,  7,
+     8,  7,  8,  7,  9,  8,  9,  8,  9,  8, 10,  8, 11,  9, 12,
+     9, 12,
+};
+
+static const uint8_t codebook14[] = {
+     2,  5,  2,  6,  3,  6,  4,  7,  4,  7,  5,  9,  5, 11,  6,
+    11,  6, 11,  7, 11,  6, 11,  6, 11,  9, 11,  8, 11, 11, 11,
+    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10,
+    10, 10, 10,
+};
+
+static const uint8_t codebook15[] = {
+     5,  6, 11, 11, 11, 11, 10, 10, 12, 11,  5,  2, 11,  5,  6,
+     6,  7,  9, 11, 13, 13, 10,  7, 11,  6,  7,  8,  9, 10, 12,
+    11,  5, 11,  6,  8,  7,  9, 11, 14, 15, 11,  6,  6,  8,  4,
+     5,  7,  8, 10, 13, 10,  5,  7,  7,  5,  5,  6,  8, 10, 11,
+    10,  7,  7,  8,  6,  5,  5,  7,  9,  9, 11,  8,  8, 11,  8,
+     7,  6,  6,  7,  9, 12, 11, 10, 13,  9,  9,  7,  7,  7,  9,
+    11, 13, 12, 15, 12, 11,  9,  8,  8,  8,
+};
+
+static const uint8_t codebook16[] = {
+     2,  4,  4,  0,  0,  0,  0,  0,  0,  5,  6,  6,  0,  0,  0,
+     0,  0,  0,  5,  6,  6,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  5,  7,  7,  0,  0,  0,  0,  0,  0,
+     7,  8,  8,  0,  0,  0,  0,  0,  0,  6,  7,  8,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  5,  7,  7,
+     0,  0,  0,  0,  0,  0,  6,  8,  7,  0,  0,  0,  0,  0,  0,
+     7,  8,  8,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  5,  7,  7,  0,  0,  0,
+     0,  0,  0,  7,  8,  8,  0,  0,  0,  0,  0,  0,  7,  8,  8,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     7,  8,  8,  0,  0,  0,  0,  0,  0,  8,  8,  9,  0,  0,  0,
+     0,  0,  0,  8,  9,  9,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  6,  8,  8,  0,  0,  0,  0,  0,  0,
+     7,  9,  8,  0,  0,  0,  0,  0,  0,  8,  9,  9,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  5,  7,  7,  0,  0,  0,  0,  0,  0,  7,  8,  8,
+     0,  0,  0,  0,  0,  0,  7,  8,  8,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  6,  8,  8,  0,  0,  0,
+     0,  0,  0,  8,  9,  9,  0,  0,  0,  0,  0,  0,  7,  8,  9,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     6,  8,  8,  0,  0,  0,  0,  0,  0,  8,  9,  9,  0,  0,  0,
+     0,  0,  0,  8,  9,  8,
+};
+
+static const uint8_t codebook17[] = {
+     2,  5,  5,  0,  0,  0,  5,  5,  0,  0,  0,  5,  5,  0,  0,
+     0,  7,  8,  0,  0,  0,  0,  0,  0,  0,  5,  6,  6,  0,  0,
+     0,  7,  7,  0,  0,  0,  7,  7,  0,  0,  0, 10, 10,  0,  0,
+     0,  0,  0,  0,  0,  5,  6,  6,  0,  0,  0,  7,  7,  0,  0,
+     0,  7,  7,  0,  0,  0, 10, 10,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     5,  7,  7,  0,  0,  0,  7,  7,  0,  0,  0,  7,  7,  0,  0,
+     0,  9,  9,  0,  0,  0,  0,  0,  0,  0,  5,  7,  7,  0,  0,
+     0,  7,  7,  0,  0,  0,  7,  7,  0,  0,  0,  9,  9,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  5,  7,  7,  0,  0,  0,  7,  7,  0,  0,
+     0,  7,  7,  0,  0,  0,  9,  9,  0,  0,  0,  0,  0,  0,  0,
+     5,  7,  7,  0,  0,  0,  7,  7,  0,  0,  0,  7,  7,  0,  0,
+     0,  9,  9,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  8, 10, 10,  0,  0,
+     0,  9,  9,  0,  0,  0,  9,  9,  0,  0,  0, 10, 10,  0,  0,
+     0,  0,  0,  0,  0,  8, 10, 10,  0,  0,  0,  9,  9,  0,  0,
+     0,  9,  9,  0,  0,  0, 10, 10,
+};
+
+static const uint8_t codebook18[] = {
+     2,  4,  3,  6,  6,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  4,  4,  4,  6,  6,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  4,  4,  4,  6,  6,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     6,  6,  6,  9,  9,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  6,  6,  7,  9,  9,
+};
+
+static const uint8_t codebook19[] = {
+     2,  3,  3,  6,  6,  0,  0,  0,  0,  0,  4,  4,  6,  6,  0,
+     0,  0,  0,  0,  4,  4,  6,  6,  0,  0,  0,  0,  0,  5,  5,
+     6,  6,  0,  0,  0,  0,  0,  0,  0,  6,  6,  0,  0,  0,  0,
+     0,  0,  0,  7,  8,  0,  0,  0,  0,  0,  0,  0,  7,  7,  0,
+     0,  0,  0,  0,  0,  0,  9,  9,
+};
+
+static const uint8_t codebook20[] = {
+     1,  3,  4,  6,  6,  7,  7,  9,  9,  0,  5,  5,  7,  7,  7,
+     8,  9,  9,  0,  5,  5,  7,  7,  8,  8,  9,  9,  0,  7,  7,
+     8,  8,  8,  8, 10, 10,  0,  0,  0,  8,  8,  8,  8, 10, 10,
+     0,  0,  0,  9,  9,  9,  9, 10, 10,  0,  0,  0,  9,  9,  9,
+     9, 10, 10,  0,  0,  0, 10, 10, 10, 10, 11, 11,  0,  0,  0,
+     0,  0, 10, 10, 11, 11,
+};
+
+static const uint8_t codebook21[] = {
+     2,  3,  3,  6,  6,  7,  7,  8,  8,  8,  8,  9,  9, 10, 10,
+    11, 10,  0,  5,  5,  7,  7,  8,  8,  9,  9,  9,  9, 10, 10,
+    10, 10, 11, 11,  0,  5,  5,  7,  7,  8,  8,  9,  9,  9,  9,
+    10, 10, 10, 10, 11, 11,  0,  6,  6,  7,  7,  8,  8,  9,  9,
+     9,  9, 10, 10, 11, 11, 11, 11,  0,  0,  0,  7,  7,  8,  8,
+     9,  9,  9,  9, 10, 10, 11, 11, 11, 12,  0,  0,  0,  8,  8,
+     8,  8,  9,  9,  9,  9, 10, 10, 11, 11, 12, 12,  0,  0,  0,
+     8,  8,  8,  8,  9,  9,  9,  9, 10, 10, 11, 11, 12, 12,  0,
+     0,  0,  9,  9,  9,  9, 10, 10, 10, 10, 11, 10, 11, 11, 12,
+    12,  0,  0,  0,  0,  0,  9,  9, 10, 10, 10, 10, 11, 11, 11,
+    11, 12, 12,  0,  0,  0,  0,  0,  9,  8,  9,  9, 10, 10, 11,
+    11, 12, 12, 12, 12,  0,  0,  0,  0,  0,  8,  8,  9,  9, 10,
+    10, 11, 11, 12, 11, 12, 12,  0,  0,  0,  0,  0,  9, 10, 10,
+    10, 11, 11, 11, 11, 12, 12, 13, 13,  0,  0,  0,  0,  0,  0,
+     0, 10, 10, 10, 10, 11, 11, 12, 12, 13, 13,  0,  0,  0,  0,
+     0,  0,  0, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13,  0,  0,
+     0,  0,  0,  0,  0, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13,
+     0,  0,  0,  0,  0,  0,  0, 11, 11, 12, 12, 12, 12, 13, 13,
+    13, 13,  0,  0,  0,  0,  0,  0,  0,  0,  0, 12, 12, 12, 12,
+    13, 13, 13, 13,
+};
+
+static const uint8_t codebook22[] = {
+     1,  4,  4,  7,  6,  6,  7,  6,  6,  4,  7,  7, 10,  9,  9,
+    11,  9,  9,  4,  7,  7, 10,  9,  9, 11,  9,  9,  7, 10, 10,
+    11, 11, 10, 12, 11, 11,  6,  9,  9, 11, 10, 10, 11, 10, 10,
+     6,  9,  9, 11, 10, 10, 11, 10, 10,  7, 11, 11, 11, 11, 11,
+    12, 11, 11,  6,  9,  9, 11, 10, 10, 11, 10, 10,  6,  9,  9,
+    11, 10, 10, 11, 10, 10,
+};
+
+static const uint8_t codebook23[] = {
+     2,  4,  4,  6,  6,  7,  7,  7,  7,  8,  8, 10,  5,  5,  6,
+     6,  7,  7,  8,  8,  8,  8, 10,  5,  5,  6,  6,  7,  7,  8,
+     8,  8,  8, 10,  6,  6,  7,  7,  8,  8,  8,  8,  8,  8, 10,
+    10, 10,  7,  7,  8,  7,  8,  8,  8,  8, 10, 10, 10,  8,  8,
+     8,  8,  8,  8,  8,  8, 10, 10, 10,  7,  8,  8,  8,  8,  8,
+     8,  8, 10, 10, 10,  8,  8,  8,  8,  8,  8,  8,  8, 10, 10,
+    10, 10, 10,  8,  8,  8,  8,  8,  8, 10, 10, 10, 10, 10,  9,
+     9,  8,  8,  9,  8, 10, 10, 10, 10, 10,  8,  8,  8,  8,  8,
+     8,
+};
+
+static const uint8_t codebook24[] = {
+     1,  4,  4,  6,  6,  7,  7,  8,  8,  9,  9, 10, 10,  6,  5,
+     5,  7,  7,  8,  8,  8,  8,  9,  9, 10, 10,  7,  5,  5,  7,
+     7,  8,  8,  8,  8,  9,  9, 11, 10,  0,  8,  8,  8,  8,  9,
+     9,  9,  9, 10, 10, 11, 11,  0,  8,  8,  8,  8,  9,  9,  9,
+     9, 10, 10, 11, 11,  0, 12, 12,  9,  9, 10, 10, 10, 10, 11,
+    11, 11, 12,  0, 13, 13,  9,  9, 10, 10, 10, 10, 11, 11, 12,
+    12,  0,  0,  0, 10, 10, 10, 10, 11, 11, 12, 12, 12, 12,  0,
+     0,  0, 10, 10, 10, 10, 11, 11, 12, 12, 12, 12,  0,  0,  0,
+    14, 14, 11, 11, 11, 11, 12, 12, 13, 13,  0,  0,  0, 14, 14,
+    11, 11, 11, 11, 12, 12, 13, 13,  0,  0,  0,  0,  0, 12, 12,
+    12, 12, 13, 13, 14, 13,  0,  0,  0,  0,  0, 13, 13, 12, 12,
+    13, 12, 14, 13,
+};
+
+static const uint8_t codebook25[] = {
+     2,  4,  4,  5,  5,  6,  5,  5,  5,  5,  6,  4,  5,  5,  5,
+     6,  5,  5,  5,  5,  6,  6,  6,  5,  5,
+};
+
+static const uint8_t codebook26[] = {
+     1,  4,  4, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,  4,  9,
+     8, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,  2,  9,  7, 12,
+    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+    12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 12, 12, 12, 12, 12,
+    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+    12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+    11, 11, 11, 11,
+};
+
+static const uint8_t codebook27[] = {
+     1,  4,  4,  6,  6,  7,  7,  8,  7,  9,  9, 10, 10, 10, 10,
+     6,  5,  5,  7,  7,  8,  8, 10,  8, 11, 10, 12, 12, 13, 13,
+     6,  5,  5,  7,  7,  8,  8, 10,  9, 11, 11, 12, 12, 13, 12,
+    18,  8,  8,  8,  8,  9,  9, 10,  9, 11, 10, 12, 12, 13, 13,
+    18,  8,  8,  8,  8,  9,  9, 10, 10, 11, 11, 13, 12, 14, 13,
+    18, 11, 11,  9,  9, 10, 10, 11, 11, 11, 12, 13, 12, 13, 14,
+    18, 11, 11,  9,  8, 11, 10, 11, 11, 11, 11, 12, 12, 14, 13,
+    18, 18, 18, 10, 11, 10, 11, 12, 12, 12, 12, 13, 12, 14, 13,
+    18, 18, 18, 10, 11, 11,  9, 12, 11, 12, 12, 12, 13, 13, 13,
+    18, 18, 17, 14, 14, 11, 11, 12, 12, 13, 12, 14, 12, 14, 13,
+    18, 18, 18, 14, 14, 11, 10, 12,  9, 12, 13, 13, 13, 13, 13,
+    18, 18, 17, 16, 18, 13, 13, 12, 12, 13, 11, 14, 12, 14, 14,
+    17, 18, 18, 17, 18, 13, 12, 13, 10, 12, 11, 14, 14, 14, 14,
+    17, 18, 18, 18, 18, 15, 16, 12, 12, 13, 10, 14, 12, 14, 15,
+    18, 18, 18, 16, 17, 16, 14, 12, 11, 13, 10, 13, 13, 14, 15,
+};
+
+static const uint8_t codebook28[] = {
+     2,  5,  5,  6,  6,  7,  7,  7,  7,  7,  7,  8,  8,  8,  8,
+     8,  8, 10,  6,  6,  7,  7,  8,  7,  8,  8,  8,  8,  8,  9,
+     9,  9,  9,  9, 10,  6,  6,  7,  7,  7,  7,  8,  8,  8,  8,
+     9,  9,  9,  9,  9,  9, 10,  7,  7,  7,  7,  8,  8,  8,  8,
+     9,  9,  9,  9,  9,  9,  9,  9, 10, 10, 10,  7,  7,  8,  8,
+     8,  9,  9,  9,  9,  9,  9,  9,  9,  9, 11, 11, 11,  8,  8,
+     8,  8,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9, 10, 10, 10,
+     8,  8,  8,  8,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9, 10,
+    10, 10,  8,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9, 10,
+     9, 10, 10, 10, 11, 11,  9,  9,  9,  9,  9,  9,  9,  9,  9,
+     9,  9,  9, 11, 10, 11, 11, 11,  9,  9,  9,  9,  9,  9, 10,
+    10,  9,  9, 10,  9, 11, 10, 11, 11, 11,  9,  9,  9,  9,  9,
+     9,  9,  9, 10, 10, 10,  9, 11, 11, 11, 11, 11,  9,  9,  9,
+     9, 10, 10,  9,  9,  9,  9, 10,  9, 11, 11, 11, 11, 11, 11,
+    11,  9,  9,  9,  9,  9,  9, 10, 10, 10, 10, 11, 11, 11, 11,
+    11, 11, 11, 10,  9, 10, 10,  9, 10,  9,  9, 10,  9, 11, 10,
+    10, 11, 11, 11, 11,  9, 10,  9,  9,  9,  9, 10, 10, 10, 10,
+    11, 11, 11, 11, 11, 11, 10, 10, 10,  9,  9, 10,  9, 10,  9,
+    10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11,  9,  9,  9,  9,
+     9, 10, 10, 10,
+};
+
+static const struct {
+    int dim;
+    int len;
+    int real_len;
+    const uint8_t *clens;
+    int lookup;
+    float min;
+    float delta;
+    const uint8_t *quant;
+} cvectors[] = {
+    { 2,   16,   16, codebook0,  0 },
+    { 2,    8,    8, codebook1,  0 },
+    { 2,  256,  256, codebook2,  0 },
+    { 2,   64,   64, codebook3,  0 },
+    { 2,  128,  128, codebook4,  0 },
+    { 2,   32,   32, codebook5,  0 },
+    { 2,   96,   96, codebook6,  0 },
+    { 2,   32,   32, codebook7,  0 },
+    { 2,   96,   96, codebook8,  0 },
+    { 2,   17,   17, codebook9,  0 },
+    { 2,   32,   32, codebook10, 0 },
+    { 2,   78,   78, codebook11, 0 },
+    { 2,   17,   17, codebook12, 0 },
+    { 2,   32,   32, codebook13, 0 },
+    { 2,   78,   78, codebook14, 0 },
+    { 2,  100,  100, codebook15, 0 },
+    { 8, 1641, 6561, codebook16, 1,    -1.0,   1.0, (const uint8_t[]){ 1, 0, 2, } },
+    { 4,  443,  625, codebook17, 1,    -2.0,   1.0, (const uint8_t[]){ 2, 1, 3, 0, 4, } },
+    { 4,  105,  625, codebook18, 1,    -2.0,   1.0, (const uint8_t[]){ 2, 1, 3, 0, 4, } },
+    { 2,   68,   81, codebook19, 1,    -4.0,   1.0, (const uint8_t[]){ 4, 3, 5, 2, 6, 1, 7, 0, 8, } },
+    { 2,   81,   81, codebook20, 1,    -4.0,   1.0, (const uint8_t[]){ 4, 3, 5, 2, 6, 1, 7, 0, 8, } },
+    { 2,  289,  289, codebook21, 1,    -8.0,   1.0, (const uint8_t[]){ 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15, 0, 16, } },
+    { 4,   81,   81, codebook22, 1,   -11.0,  11.0, (const uint8_t[]){ 1, 0, 2, } },
+    { 2,  121,  121, codebook23, 1,    -5.0,   1.0, (const uint8_t[]){ 5, 4, 6, 3, 7, 2, 8, 1, 9, 0, 10, } },
+    { 2,  169,  169, codebook24, 1,   -30.0,   5.0, (const uint8_t[]){ 6, 5, 7, 4, 8, 3, 9, 2, 10, 1, 11, 0, 12, } },
+    { 2,   25,   25, codebook25, 1,    -2.0,   1.0, (const uint8_t[]){ 2, 1, 3, 0, 4, } },
+    { 2,  169,  169, codebook26, 1, -1530.0, 255.0, (const uint8_t[]){ 6, 5, 7, 4, 8, 3, 9, 2, 10, 1, 11, 0, 12, } },
+    { 2,  225,  225, codebook27, 1,  -119.0,  17.0, (const uint8_t[]){ 7, 6, 8, 5, 9, 4, 10, 3, 11, 2, 12, 1, 13, 0, 14, } },
+    { 2,  289,  289, codebook28, 1,    -8.0,   1.0, (const uint8_t[]){ 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15, 0, 16, } },
+};
+
+static const struct {
+    int dim;
+    int subclass;
+    int masterbook;
+    const int nbooks[4];
+} floor_classes[] = {
+    { 3, 0, 0, {  4             } },
+    { 4, 1, 0, {  5,  6         } },
+    { 3, 1, 1, {  7,  8         } },
+    { 4, 2, 2, { -1,  9, 10, 11 } },
+    { 3, 2, 3, { -1, 12, 13, 14 } },
+};
+
+#endif /* AVCODEC_VORBIS_ENC_DATA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_parser.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_parser.c
new file mode 100644
index 000000000..0b2c97cde
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_parser.c
@@ -0,0 +1,341 @@
+/*
+ * Copyright (c) 2012 Justin Ruggles
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Vorbis audio parser
+ *
+ * Determines the duration for each packet.
+ */
+
+#include "libavutil/log.h"
+
+#include "get_bits.h"
+#include "parser.h"
+#include "xiph.h"
+#include "vorbis_parser_internal.h"
+
+static const AVClass vorbis_parser_class = {
+    .class_name = "Vorbis parser",
+    .item_name  = av_default_item_name,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+static int parse_id_header(AVVorbisParseContext *s,
+                           const uint8_t *buf, int buf_size)
+{
+    /* Id header should be 30 bytes */
+    if (buf_size < 30) {
+        av_log(s, AV_LOG_ERROR, "Id header is too short\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    /* make sure this is the Id header */
+    if (buf[0] != 1) {
+        av_log(s, AV_LOG_ERROR, "Wrong packet type in Id header\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    /* check for header signature */
+    if (memcmp(&buf[1], "vorbis", 6)) {
+        av_log(s, AV_LOG_ERROR, "Invalid packet signature in Id header\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    if (!(buf[29] & 0x1)) {
+        av_log(s, AV_LOG_ERROR, "Invalid framing bit in Id header\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    s->blocksize[0] = 1 << (buf[28] & 0xF);
+    s->blocksize[1] = 1 << (buf[28] >>  4);
+
+    return 0;
+}
+
+static int parse_setup_header(AVVorbisParseContext *s,
+                              const uint8_t *buf, int buf_size)
+{
+    GetBitContext gb, gb0;
+    uint8_t *rev_buf;
+    int i, ret = 0;
+    int got_framing_bit, mode_count, got_mode_header, last_mode_count = 0;
+
+    /* avoid overread */
+    if (buf_size < 7) {
+        av_log(s, AV_LOG_ERROR, "Setup header is too short\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    /* make sure this is the Setup header */
+    if (buf[0] != 5) {
+        av_log(s, AV_LOG_ERROR, "Wrong packet type in Setup header\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    /* check for header signature */
+    if (memcmp(&buf[1], "vorbis", 6)) {
+        av_log(s, AV_LOG_ERROR, "Invalid packet signature in Setup header\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    /* reverse bytes so we can easily read backwards with get_bits() */
+    if (!(rev_buf = av_malloc(buf_size))) {
+        av_log(s, AV_LOG_ERROR, "Out of memory\n");
+        return AVERROR(ENOMEM);
+    }
+    for (i = 0; i < buf_size; i++)
+        rev_buf[i] = buf[buf_size - 1 - i];
+    init_get_bits(&gb, rev_buf, buf_size * 8);
+
+    got_framing_bit = 0;
+    while (get_bits_left(&gb) > 97) {
+        if (get_bits1(&gb)) {
+            got_framing_bit = get_bits_count(&gb);
+            break;
+        }
+    }
+    if (!got_framing_bit) {
+        av_log(s, AV_LOG_ERROR, "Invalid Setup header\n");
+        ret = AVERROR_INVALIDDATA;
+        goto bad_header;
+    }
+
+    /* Now we search backwards to find possible valid mode counts. This is not
+     * fool-proof because we could have false positive matches and read too
+     * far, but there isn't really any way to be sure without parsing through
+     * all the many variable-sized fields before the modes. This approach seems
+     * to work well in testing, and it is similar to how it is handled in
+     * liboggz. */
+    mode_count = 0;
+    got_mode_header = 0;
+    while (get_bits_left(&gb) >= 97) {
+        if (get_bits(&gb, 8) > 63 || get_bits(&gb, 16) || get_bits(&gb, 16))
+            break;
+        skip_bits(&gb, 1);
+        mode_count++;
+        if (mode_count > 64)
+            break;
+        gb0 = gb;
+        if (get_bits(&gb0, 6) + 1 == mode_count) {
+            got_mode_header = 1;
+            last_mode_count = mode_count;
+        }
+    }
+    if (!got_mode_header) {
+        av_log(s, AV_LOG_ERROR, "Invalid Setup header\n");
+        ret = AVERROR_INVALIDDATA;
+        goto bad_header;
+    }
+    /* All samples I've seen use <= 2 modes, so ask for a sample if we find
+     * more than that, as it is most likely a false positive. If we get any
+     * we may need to approach this the long way and parse the whole Setup
+     * header, but I hope very much that it never comes to that. */
+    if (last_mode_count > 2) {
+        avpriv_request_sample(s,
+                              "%d modes (either a false positive or a "
+                              "sample from an unknown encoder)",
+                              last_mode_count);
+    }
+    /* We're limiting the mode count to 63 so that we know that the previous
+     * block flag will be in the first packet byte. */
+    if (last_mode_count > 63) {
+        av_log(s, AV_LOG_ERROR, "Unsupported mode count: %d\n",
+               last_mode_count);
+        ret = AVERROR_INVALIDDATA;
+        goto bad_header;
+    }
+    s->mode_count = mode_count = last_mode_count;
+    /* Determine the number of bits required to code the mode and turn that
+     * into a bitmask to directly access the mode from the first frame byte. */
+    s->mode_mask = ((1 << (av_log2(mode_count - 1) + 1)) - 1) << 1;
+    /* The previous window flag is the next bit after the mode */
+    s->prev_mask = (s->mode_mask | 0x1) + 1;
+
+    init_get_bits(&gb, rev_buf, buf_size * 8);
+    skip_bits_long(&gb, got_framing_bit);
+    for (i = mode_count - 1; i >= 0; i--) {
+        skip_bits_long(&gb, 40);
+        s->mode_blocksize[i] = get_bits1(&gb);
+    }
+
+bad_header:
+    av_free(rev_buf);
+    return ret;
+}
+
+static int vorbis_parse_init(AVVorbisParseContext *s,
+                             const uint8_t *extradata, int extradata_size)
+{
+    const uint8_t *header_start[3];
+    int header_len[3];
+    int ret;
+
+    s->class = &vorbis_parser_class;
+    s->extradata_parsed = 1;
+
+    if ((ret = avpriv_split_xiph_headers(extradata,
+                                         extradata_size, 30,
+                                         header_start, header_len)) < 0) {
+        av_log(s, AV_LOG_ERROR, "Extradata corrupt.\n");
+        return ret;
+    }
+
+    if ((ret = parse_id_header(s, header_start[0], header_len[0])) < 0)
+        return ret;
+
+    if ((ret = parse_setup_header(s, header_start[2], header_len[2])) < 0)
+        return ret;
+
+    s->valid_extradata = 1;
+    s->previous_blocksize = s->blocksize[s->mode_blocksize[0]];
+
+    return 0;
+}
+
+int av_vorbis_parse_frame_flags(AVVorbisParseContext *s, const uint8_t *buf,
+                                int buf_size, int *flags)
+{
+    int duration = 0;
+
+    if (s->valid_extradata && buf_size > 0) {
+        int mode, current_blocksize;
+        int previous_blocksize = s->previous_blocksize;
+
+        if (buf[0] & 1) {
+            /* If the user doesn't care about special packets, it's a bad one. */
+            if (!flags)
+                goto bad_packet;
+
+            /* Set the flag for which kind of special packet it is. */
+            if (buf[0] == 1)
+                *flags |= VORBIS_FLAG_HEADER;
+            else if (buf[0] == 3)
+                *flags |= VORBIS_FLAG_COMMENT;
+            else if (buf[0] == 5)
+                *flags |= VORBIS_FLAG_SETUP;
+            else
+                goto bad_packet;
+
+            /* Special packets have no duration. */
+            return 0;
+
+bad_packet:
+            av_log(s, AV_LOG_ERROR, "Invalid packet\n");
+            return AVERROR_INVALIDDATA;
+        }
+        if (s->mode_count == 1)
+            mode = 0;
+        else
+            mode = (buf[0] & s->mode_mask) >> 1;
+        if (mode >= s->mode_count) {
+            av_log(s, AV_LOG_ERROR, "Invalid mode in packet\n");
+            return AVERROR_INVALIDDATA;
+        }
+        if(s->mode_blocksize[mode]){
+            int flag = !!(buf[0] & s->prev_mask);
+            previous_blocksize = s->blocksize[flag];
+        }
+        current_blocksize     = s->blocksize[s->mode_blocksize[mode]];
+        duration              = (previous_blocksize + current_blocksize) >> 2;
+        s->previous_blocksize = current_blocksize;
+    }
+
+    return duration;
+}
+
+int av_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf,
+                          int buf_size)
+{
+    return av_vorbis_parse_frame_flags(s, buf, buf_size, NULL);
+}
+
+void av_vorbis_parse_reset(AVVorbisParseContext *s)
+{
+    if (s->valid_extradata)
+        s->previous_blocksize = s->blocksize[0];
+}
+
+void av_vorbis_parse_free(AVVorbisParseContext **s)
+{
+    av_freep(s);
+}
+
+AVVorbisParseContext *av_vorbis_parse_init(const uint8_t *extradata,
+                                           int extradata_size)
+{
+    AVVorbisParseContext *s = av_mallocz(sizeof(*s));
+    int ret;
+
+    if (!s)
+        return NULL;
+
+    ret = vorbis_parse_init(s, extradata, extradata_size);
+    if (ret < 0) {
+        av_vorbis_parse_free(&s);
+        return NULL;
+    }
+
+    return s;
+}
+
+#if CONFIG_VORBIS_PARSER
+
+typedef struct VorbisParseContext {
+    AVVorbisParseContext *vp;
+} VorbisParseContext;
+
+static int vorbis_parse(AVCodecParserContext *s1, AVCodecContext *avctx,
+                        const uint8_t **poutbuf, int *poutbuf_size,
+                        const uint8_t *buf, int buf_size)
+{
+    VorbisParseContext *s = s1->priv_data;
+    int duration;
+
+    if (!s->vp && avctx->extradata && avctx->extradata_size) {
+        s->vp = av_vorbis_parse_init(avctx->extradata, avctx->extradata_size);
+    }
+    if (!s->vp)
+        goto end;
+
+    if ((duration = av_vorbis_parse_frame(s->vp, buf, buf_size)) >= 0)
+        s1->duration = duration;
+
+end:
+    /* always return the full packet. this parser isn't doing any splitting or
+       combining, only packet analysis */
+    *poutbuf      = buf;
+    *poutbuf_size = buf_size;
+    return buf_size;
+}
+
+static void vorbis_parser_close(AVCodecParserContext *ctx)
+{
+    VorbisParseContext *s = ctx->priv_data;
+    av_vorbis_parse_free(&s->vp);
+}
+
+AVCodecParser ff_vorbis_parser = {
+    .codec_ids      = { AV_CODEC_ID_VORBIS },
+    .priv_data_size = sizeof(VorbisParseContext),
+    .parser_parse   = vorbis_parse,
+    .parser_close   = vorbis_parser_close,
+};
+#endif /* CONFIG_VORBIS_PARSER */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_parser.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_parser.h
new file mode 100644
index 000000000..789932ac4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_parser.h
@@ -0,0 +1,74 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * A public API for Vorbis parsing
+ *
+ * Determines the duration for each packet.
+ */
+
+#ifndef AVCODEC_VORBIS_PARSER_H
+#define AVCODEC_VORBIS_PARSER_H
+
+#include <stdint.h>
+
+typedef struct AVVorbisParseContext AVVorbisParseContext;
+
+/**
+ * Allocate and initialize the Vorbis parser using headers in the extradata.
+ */
+AVVorbisParseContext *av_vorbis_parse_init(const uint8_t *extradata,
+                                           int extradata_size);
+
+/**
+ * Free the parser and everything associated with it.
+ */
+void av_vorbis_parse_free(AVVorbisParseContext **s);
+
+#define VORBIS_FLAG_HEADER  0x00000001
+#define VORBIS_FLAG_COMMENT 0x00000002
+#define VORBIS_FLAG_SETUP   0x00000004
+
+/**
+ * Get the duration for a Vorbis packet.
+ *
+ * If @p flags is @c NULL,
+ * special frames are considered invalid.
+ *
+ * @param s        Vorbis parser context
+ * @param buf      buffer containing a Vorbis frame
+ * @param buf_size size of the buffer
+ * @param flags    flags for special frames
+ */
+int av_vorbis_parse_frame_flags(AVVorbisParseContext *s, const uint8_t *buf,
+                                int buf_size, int *flags);
+
+/**
+ * Get the duration for a Vorbis packet.
+ *
+ * @param s        Vorbis parser context
+ * @param buf      buffer containing a Vorbis frame
+ * @param buf_size size of the buffer
+ */
+int av_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf,
+                          int buf_size);
+
+void av_vorbis_parse_reset(AVVorbisParseContext *s);
+
+#endif /* AVCODEC_VORBIS_PARSER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_parser_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_parser_internal.h
new file mode 100644
index 000000000..691a84238
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbis_parser_internal.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2012 Justin Ruggles
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Vorbis audio parser
+ *
+ * Determines the duration for each packet.
+ */
+
+#ifndef AVCODEC_VORBIS_PARSER_INTERNAL_H
+#define AVCODEC_VORBIS_PARSER_INTERNAL_H
+
+#include "avcodec.h"
+#include "vorbis_parser.h"
+
+struct AVVorbisParseContext {
+    const AVClass *class;
+    int extradata_parsed;       ///< we have attempted to parse extradata
+    int valid_extradata;        ///< extradata is valid, so we can calculate duration
+    int blocksize[2];           ///< short and long window sizes
+    int previous_blocksize;     ///< previous window size
+    int mode_blocksize[64];     ///< window size mapping for each mode
+    int mode_count;             ///< number of modes
+    int mode_mask;              ///< bitmask used to get the mode in each packet
+    int prev_mask;              ///< bitmask used to get the previous mode flag in each packet
+};
+
+#endif /* AVCODEC_VORBIS_PARSER_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbisdsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbisdsp.h
new file mode 100644
index 000000000..7abec4e4b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/vorbisdsp.h
@@ -0,0 +1,38 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VORBISDSP_H
+#define AVCODEC_VORBISDSP_H
+
+#include <stdint.h>
+
+typedef struct VorbisDSPContext {
+    /* assume len is a multiple of 4, and arrays are 16-byte aligned */
+    void (*vorbis_inverse_coupling)(float *mag, float *ang,
+                                    intptr_t blocksize);
+} VorbisDSPContext;
+
+void ff_vorbisdsp_init(VorbisDSPContext *dsp);
+
+/* for internal use only */
+void ff_vorbisdsp_init_aarch64(VorbisDSPContext *dsp);
+void ff_vorbisdsp_init_x86(VorbisDSPContext *dsp);
+void ff_vorbisdsp_init_arm(VorbisDSPContext *dsp);
+void ff_vorbisdsp_init_ppc(VorbisDSPContext *dsp);
+
+#endif /* AVCODEC_VORBISDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/Makefile b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/Makefile
new file mode 100644
index 000000000..194135daf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/Makefile
@@ -0,0 +1,199 @@
+OBJS                                   += x86/constants.o               \
+
+# subsystems
+OBJS-$(CONFIG_AC3DSP)                  += x86/ac3dsp_init.o
+OBJS-$(CONFIG_AUDIODSP)                += x86/audiodsp_init.o
+OBJS-$(CONFIG_BLOCKDSP)                += x86/blockdsp_init.o
+OBJS-$(CONFIG_BSWAPDSP)                += x86/bswapdsp_init.o
+OBJS-$(CONFIG_DCT)                     += x86/dct_init.o
+OBJS-$(CONFIG_DIRAC_DECODER)           += x86/diracdsp_init.o           \
+                                          x86/dirac_dwt_init.o
+OBJS-$(CONFIG_FDCTDSP)                 += x86/fdctdsp_init.o
+OBJS-$(CONFIG_FFT)                     += x86/fft_init.o
+OBJS-$(CONFIG_FLACDSP)                 += x86/flacdsp_init.o
+OBJS-$(CONFIG_FMTCONVERT)              += x86/fmtconvert_init.o
+OBJS-$(CONFIG_H263DSP)                 += x86/h263dsp_init.o
+OBJS-$(CONFIG_H264CHROMA)              += x86/h264chroma_init.o
+OBJS-$(CONFIG_H264DSP)                 += x86/h264dsp_init.o
+OBJS-$(CONFIG_H264PRED)                += x86/h264_intrapred_init.o
+OBJS-$(CONFIG_H264QPEL)                += x86/h264_qpel.o
+OBJS-$(CONFIG_HPELDSP)                 += x86/hpeldsp_init.o
+OBJS-$(CONFIG_LLAUDDSP)                += x86/lossless_audiodsp_init.o
+OBJS-$(CONFIG_LLVIDDSP)                += x86/lossless_videodsp_init.o
+OBJS-$(CONFIG_LLVIDENCDSP)             += x86/lossless_videoencdsp_init.o
+OBJS-$(CONFIG_HUFFYUVDSP)              += x86/huffyuvdsp_init.o
+OBJS-$(CONFIG_HUFFYUVENCDSP)           += x86/huffyuvencdsp_init.o
+OBJS-$(CONFIG_IDCTDSP)                 += x86/idctdsp_init.o
+OBJS-$(CONFIG_LPC)                     += x86/lpc.o
+OBJS-$(CONFIG_MDCT15)                  += x86/mdct15_init.o
+OBJS-$(CONFIG_ME_CMP)                  += x86/me_cmp_init.o
+OBJS-$(CONFIG_MPEGAUDIODSP)            += x86/mpegaudiodsp.o
+OBJS-$(CONFIG_MPEGVIDEO)               += x86/mpegvideo.o              \
+                                          x86/mpegvideodsp.o
+OBJS-$(CONFIG_MPEGVIDEOENC)            += x86/mpegvideoenc.o           \
+                                          x86/mpegvideoencdsp_init.o
+OBJS-$(CONFIG_PIXBLOCKDSP)             += x86/pixblockdsp_init.o
+OBJS-$(CONFIG_QPELDSP)                 += x86/qpeldsp_init.o
+OBJS-$(CONFIG_RV34DSP)                 += x86/rv34dsp_init.o
+OBJS-$(CONFIG_VC1DSP)                  += x86/vc1dsp_init.o
+OBJS-$(CONFIG_VIDEODSP)                += x86/videodsp_init.o
+OBJS-$(CONFIG_VP3DSP)                  += x86/vp3dsp_init.o
+OBJS-$(CONFIG_VP8DSP)                  += x86/vp8dsp_init.o
+OBJS-$(CONFIG_XMM_CLOBBER_TEST)        += x86/w64xmmtest.o
+
+# decoders/encoders
+OBJS-$(CONFIG_AAC_DECODER)             += x86/aacpsdsp_init.o          \
+                                          x86/sbrdsp_init.o
+OBJS-$(CONFIG_AAC_ENCODER)             += x86/aacencdsp_init.o
+OBJS-$(CONFIG_ADPCM_G722_DECODER)      += x86/g722dsp_init.o
+OBJS-$(CONFIG_ADPCM_G722_ENCODER)      += x86/g722dsp_init.o
+OBJS-$(CONFIG_ALAC_DECODER)            += x86/alacdsp_init.o
+OBJS-$(CONFIG_APNG_DECODER)            += x86/pngdsp_init.o
+OBJS-$(CONFIG_CAVS_DECODER)            += x86/cavsdsp.o
+OBJS-$(CONFIG_DCA_DECODER)             += x86/dcadsp_init.o x86/synth_filter_init.o
+OBJS-$(CONFIG_DNXHD_ENCODER)           += x86/dnxhdenc_init.o
+OBJS-$(CONFIG_EXR_DECODER)             += x86/exrdsp_init.o
+OBJS-$(CONFIG_OPUS_DECODER)            += x86/opusdsp_init.o
+OBJS-$(CONFIG_OPUS_ENCODER)            += x86/celt_pvq_init.o
+OBJS-$(CONFIG_HEVC_DECODER)            += x86/hevcdsp_init.o
+OBJS-$(CONFIG_JPEG2000_DECODER)        += x86/jpeg2000dsp_init.o
+OBJS-$(CONFIG_LSCR_DECODER)            += x86/pngdsp_init.o
+OBJS-$(CONFIG_MLP_DECODER)             += x86/mlpdsp_init.o
+OBJS-$(CONFIG_MPEG4_DECODER)           += x86/xvididct_init.o
+OBJS-$(CONFIG_PNG_DECODER)             += x86/pngdsp_init.o
+OBJS-$(CONFIG_PRORES_DECODER)          += x86/proresdsp_init.o
+OBJS-$(CONFIG_PRORES_LGPL_DECODER)     += x86/proresdsp_init.o
+OBJS-$(CONFIG_RV40_DECODER)            += x86/rv40dsp_init.o
+OBJS-$(CONFIG_SBC_ENCODER)             += x86/sbcdsp_init.o
+OBJS-$(CONFIG_SVQ1_ENCODER)            += x86/svq1enc_init.o
+OBJS-$(CONFIG_TAK_DECODER)             += x86/takdsp_init.o
+OBJS-$(CONFIG_TRUEHD_DECODER)          += x86/mlpdsp_init.o
+OBJS-$(CONFIG_TTA_DECODER)             += x86/ttadsp_init.o
+OBJS-$(CONFIG_TTA_ENCODER)             += x86/ttaencdsp_init.o
+OBJS-$(CONFIG_UTVIDEO_DECODER)         += x86/utvideodsp_init.o
+OBJS-$(CONFIG_V210_DECODER)            += x86/v210-init.o
+OBJS-$(CONFIG_V210_ENCODER)            += x86/v210enc_init.o
+OBJS-$(CONFIG_VORBIS_DECODER)          += x86/vorbisdsp_init.o
+OBJS-$(CONFIG_VP3_DECODER)             += x86/hpeldsp_vp3_init.o
+OBJS-$(CONFIG_VP6_DECODER)             += x86/vp6dsp_init.o
+OBJS-$(CONFIG_VP9_DECODER)             += x86/vp9dsp_init.o            \
+                                          x86/vp9dsp_init_10bpp.o      \
+                                          x86/vp9dsp_init_12bpp.o      \
+                                          x86/vp9dsp_init_16bpp.o
+OBJS-$(CONFIG_WEBP_DECODER)            += x86/vp8dsp_init.o
+
+
+# GCC inline assembly optimizations
+# subsystems
+MMX-OBJS-$(CONFIG_FDCTDSP)             += x86/fdct.o
+MMX-OBJS-$(CONFIG_VC1DSP)              += x86/vc1dsp_mmx.o
+
+# decoders/encoders
+MMX-OBJS-$(CONFIG_SNOW_DECODER)        += x86/snowdsp.o
+MMX-OBJS-$(CONFIG_SNOW_ENCODER)        += x86/snowdsp.o
+
+# subsystems
+X86ASM-OBJS-$(CONFIG_AC3DSP)           += x86/ac3dsp.o                  \
+                                          x86/ac3dsp_downmix.o
+X86ASM-OBJS-$(CONFIG_AUDIODSP)         += x86/audiodsp.o
+X86ASM-OBJS-$(CONFIG_BLOCKDSP)         += x86/blockdsp.o
+X86ASM-OBJS-$(CONFIG_BSWAPDSP)         += x86/bswapdsp.o
+X86ASM-OBJS-$(CONFIG_DCT)              += x86/dct32.o
+X86ASM-OBJS-$(CONFIG_FFT)              += x86/fft.o
+X86ASM-OBJS-$(CONFIG_FMTCONVERT)       += x86/fmtconvert.o
+X86ASM-OBJS-$(CONFIG_H263DSP)          += x86/h263_loopfilter.o
+X86ASM-OBJS-$(CONFIG_H264CHROMA)       += x86/h264_chromamc.o           \
+                                          x86/h264_chromamc_10bit.o
+X86ASM-OBJS-$(CONFIG_H264DSP)          += x86/h264_deblock.o            \
+                                          x86/h264_deblock_10bit.o      \
+                                          x86/h264_idct.o               \
+                                          x86/h264_idct_10bit.o         \
+                                          x86/h264_weight.o             \
+                                          x86/h264_weight_10bit.o
+X86ASM-OBJS-$(CONFIG_H264PRED)         += x86/h264_intrapred.o          \
+                                          x86/h264_intrapred_10bit.o
+X86ASM-OBJS-$(CONFIG_H264QPEL)         += x86/h264_qpel_8bit.o          \
+                                          x86/h264_qpel_10bit.o         \
+                                          x86/fpel.o                    \
+                                          x86/qpel.o
+X86ASM-OBJS-$(CONFIG_HPELDSP)          += x86/fpel.o                    \
+                                          x86/hpeldsp.o
+X86ASM-OBJS-$(CONFIG_HUFFYUVDSP)       += x86/huffyuvdsp.o
+X86ASM-OBJS-$(CONFIG_HUFFYUVENCDSP)    += x86/huffyuvencdsp.o
+X86ASM-OBJS-$(CONFIG_IDCTDSP)          += x86/idctdsp.o
+X86ASM-OBJS-$(CONFIG_LLAUDDSP)         += x86/lossless_audiodsp.o
+X86ASM-OBJS-$(CONFIG_LLVIDDSP)         += x86/lossless_videodsp.o
+X86ASM-OBJS-$(CONFIG_LLVIDENCDSP)      += x86/lossless_videoencdsp.o
+X86ASM-OBJS-$(CONFIG_MDCT15)           += x86/mdct15.o
+X86ASM-OBJS-$(CONFIG_ME_CMP)           += x86/me_cmp.o
+X86ASM-OBJS-$(CONFIG_MPEGAUDIODSP)     += x86/imdct36.o
+X86ASM-OBJS-$(CONFIG_MPEGVIDEOENC)     += x86/mpegvideoencdsp.o
+X86ASM-OBJS-$(CONFIG_OPUS_DECODER)     += x86/opusdsp.o
+X86ASM-OBJS-$(CONFIG_OPUS_ENCODER)     += x86/celt_pvq_search.o
+X86ASM-OBJS-$(CONFIG_PIXBLOCKDSP)      += x86/pixblockdsp.o
+X86ASM-OBJS-$(CONFIG_QPELDSP)          += x86/qpeldsp.o                 \
+                                          x86/fpel.o                    \
+                                          x86/qpel.o
+X86ASM-OBJS-$(CONFIG_RV34DSP)          += x86/rv34dsp.o
+X86ASM-OBJS-$(CONFIG_VC1DSP)           += x86/vc1dsp_loopfilter.o       \
+                                          x86/vc1dsp_mc.o
+X86ASM-OBJS-$(CONFIG_IDCTDSP)          += x86/simple_idct10.o           \
+                                          x86/simple_idct.o
+X86ASM-OBJS-$(CONFIG_VIDEODSP)         += x86/videodsp.o
+X86ASM-OBJS-$(CONFIG_VP3DSP)           += x86/vp3dsp.o
+X86ASM-OBJS-$(CONFIG_VP8DSP)           += x86/vp8dsp.o                  \
+                                          x86/vp8dsp_loopfilter.o
+
+# decoders/encoders
+X86ASM-OBJS-$(CONFIG_AAC_DECODER)      += x86/aacpsdsp.o                \
+                                          x86/sbrdsp.o
+X86ASM-OBJS-$(CONFIG_AAC_ENCODER)      += x86/aacencdsp.o
+X86ASM-OBJS-$(CONFIG_ADPCM_G722_DECODER) += x86/g722dsp.o
+X86ASM-OBJS-$(CONFIG_ADPCM_G722_ENCODER) += x86/g722dsp.o
+X86ASM-OBJS-$(CONFIG_ALAC_DECODER)     += x86/alacdsp.o
+X86ASM-OBJS-$(CONFIG_APNG_DECODER)     += x86/pngdsp.o
+X86ASM-OBJS-$(CONFIG_CAVS_DECODER)     += x86/cavsidct.o
+X86ASM-OBJS-$(CONFIG_DCA_DECODER)      += x86/dcadsp.o x86/synth_filter.o
+X86ASM-OBJS-$(CONFIG_DIRAC_DECODER)    += x86/diracdsp.o                \
+                                          x86/dirac_dwt.o
+X86ASM-OBJS-$(CONFIG_DNXHD_ENCODER)    += x86/dnxhdenc.o
+X86ASM-OBJS-$(CONFIG_EXR_DECODER)      += x86/exrdsp.o
+X86ASM-OBJS-$(CONFIG_FLAC_DECODER)     += x86/flacdsp.o
+ifdef CONFIG_GPL
+X86ASM-OBJS-$(CONFIG_FLAC_ENCODER)     += x86/flac_dsp_gpl.o
+endif
+X86ASM-OBJS-$(CONFIG_HEVC_DECODER)     += x86/hevc_add_res.o            \
+                                          x86/hevc_deblock.o            \
+                                          x86/hevc_idct.o               \
+                                          x86/hevc_mc.o                 \
+                                          x86/hevc_sao.o                \
+                                          x86/hevc_sao_10bit.o
+X86ASM-OBJS-$(CONFIG_JPEG2000_DECODER) += x86/jpeg2000dsp.o
+X86ASM-OBJS-$(CONFIG_LSCR_DECODER)     += x86/pngdsp.o
+X86ASM-OBJS-$(CONFIG_MLP_DECODER)      += x86/mlpdsp.o
+X86ASM-OBJS-$(CONFIG_MPEG4_DECODER)    += x86/xvididct.o
+X86ASM-OBJS-$(CONFIG_PNG_DECODER)      += x86/pngdsp.o
+X86ASM-OBJS-$(CONFIG_PRORES_DECODER)   += x86/proresdsp.o
+X86ASM-OBJS-$(CONFIG_PRORES_LGPL_DECODER) += x86/proresdsp.o
+X86ASM-OBJS-$(CONFIG_RV40_DECODER)     += x86/rv40dsp.o
+X86ASM-OBJS-$(CONFIG_SBC_ENCODER)      += x86/sbcdsp.o
+X86ASM-OBJS-$(CONFIG_SVQ1_ENCODER)     += x86/svq1enc.o
+X86ASM-OBJS-$(CONFIG_TAK_DECODER)      += x86/takdsp.o
+X86ASM-OBJS-$(CONFIG_TRUEHD_DECODER)   += x86/mlpdsp.o
+X86ASM-OBJS-$(CONFIG_TTA_DECODER)      += x86/ttadsp.o
+X86ASM-OBJS-$(CONFIG_TTA_ENCODER)      += x86/ttaencdsp.o
+X86ASM-OBJS-$(CONFIG_UTVIDEO_DECODER)  += x86/utvideodsp.o
+X86ASM-OBJS-$(CONFIG_V210_ENCODER)     += x86/v210enc.o
+X86ASM-OBJS-$(CONFIG_V210_DECODER)     += x86/v210.o
+X86ASM-OBJS-$(CONFIG_VORBIS_DECODER)   += x86/vorbisdsp.o
+X86ASM-OBJS-$(CONFIG_VP3_DECODER)      += x86/hpeldsp_vp3.o
+X86ASM-OBJS-$(CONFIG_VP6_DECODER)      += x86/vp6dsp.o
+X86ASM-OBJS-$(CONFIG_VP9_DECODER)      += x86/vp9intrapred.o            \
+                                          x86/vp9intrapred_16bpp.o      \
+                                          x86/vp9itxfm.o                \
+                                          x86/vp9itxfm_16bpp.o          \
+                                          x86/vp9lpf.o                  \
+                                          x86/vp9lpf_16bpp.o            \
+                                          x86/vp9mc.o                   \
+                                          x86/vp9mc_16bpp.o
+X86ASM-OBJS-$(CONFIG_WEBP_DECODER)     += x86/vp8dsp.o
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/aacencdsp.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/aacencdsp.asm
new file mode 100644
index 000000000..97af571ec
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/aacencdsp.asm
@@ -0,0 +1,86 @@
+;******************************************************************************
+;* SIMD optimized AAC encoder DSP functions
+;*
+;* Copyright (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION_RODATA
+
+float_abs_mask: times 4 dd 0x7fffffff
+
+SECTION .text
+
+;*******************************************************************
+;void ff_abs_pow34(float *out, const float *in, const int size);
+;*******************************************************************
+INIT_XMM sse
+cglobal abs_pow34, 3, 3, 3, out, in, size
+    mova   m2, [float_abs_mask]
+    shl    sizeq, 2
+    add    inq, sizeq
+    add    outq, sizeq
+    neg    sizeq
+.loop:
+    andps  m0, m2, [inq+sizeq]
+    sqrtps m1, m0
+    mulps  m0, m1
+    sqrtps m0, m0
+    mova   [outq+sizeq], m0
+    add    sizeq, mmsize
+    jl    .loop
+    RET
+
+;*******************************************************************
+;void ff_aac_quantize_bands(int *out, const float *in, const float *scaled,
+;                           int size, int is_signed, int maxval, const float Q34,
+;                           const float rounding)
+;*******************************************************************
+INIT_XMM sse2
+cglobal aac_quantize_bands, 5, 5, 6, out, in, scaled, size, is_signed, maxval, Q34, rounding
+%if UNIX64 == 0
+    movss     m0, Q34m
+    movss     m1, roundingm
+    cvtsi2ss  m3, dword maxvalm
+%else
+    cvtsi2ss  m3, maxvald
+%endif
+    shufps    m0, m0, 0
+    shufps    m1, m1, 0
+    shufps    m3, m3, 0
+    shl       is_signedd, 31
+    movd      m4, is_signedd
+    shufps    m4, m4, 0
+    shl       sized,   2
+    add       inq, sizeq
+    add       outq, sizeq
+    add       scaledq, sizeq
+    neg       sizeq
+.loop:
+    mulps     m2, m0, [scaledq+sizeq]
+    addps     m2, m1
+    minps     m2, m3
+    andps     m5, m4, [inq+sizeq]
+    orps      m2, m5
+    cvttps2dq m2, m2
+    mova      [outq+sizeq], m2
+    add       sizeq, mmsize
+    jl       .loop
+    RET
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/aacencdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/aacencdsp_init.c
new file mode 100644
index 000000000..d761c3c5e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/aacencdsp_init.c
@@ -0,0 +1,43 @@
+/*
+ * AAC encoder assembly optimizations
+ * Copyright (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/float_dsp.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/aacenc.h"
+
+void ff_abs_pow34_sse(float *out, const float *in, const int size);
+
+void ff_aac_quantize_bands_sse2(int *out, const float *in, const float *scaled,
+                                int size, int is_signed, int maxval, const float Q34,
+                                const float rounding);
+
+av_cold void ff_aac_dsp_init_x86(AACEncContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE(cpu_flags))
+        s->abs_pow34   = ff_abs_pow34_sse;
+
+    if (EXTERNAL_SSE2(cpu_flags))
+        s->quant_bands = ff_aac_quantize_bands_sse2;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/aacpsdsp.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/aacpsdsp.asm
new file mode 100644
index 000000000..4acd087c8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/aacpsdsp.asm
@@ -0,0 +1,487 @@
+;******************************************************************************
+;* SIMD optimized MPEG-4 Parametric Stereo decoding functions
+;*
+;* Copyright (C) 2015 James Almer
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION_RODATA
+
+ps_p1m1p1m1: dd 0, 0x80000000, 0, 0x80000000
+
+SECTION .text
+
+;*************************************************************************
+;void ff_ps_add_squares_<opt>(float *dst, const float (*src)[2], int n);
+;*************************************************************************
+%macro PS_ADD_SQUARES 1
+cglobal ps_add_squares, 3, 3, %1, dst, src, n
+    shl    nd, 3
+    add  srcq, nq
+    neg    nq
+
+align 16
+.loop:
+    movaps m0, [srcq+nq]
+    movaps m1, [srcq+nq+mmsize]
+    mulps  m0, m0
+    mulps  m1, m1
+    HADDPS m0, m1, m2
+    addps  m0, [dstq]
+    movaps [dstq], m0
+    add  dstq, mmsize
+    add    nq, mmsize*2
+    jl .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+PS_ADD_SQUARES 2
+INIT_XMM sse3
+PS_ADD_SQUARES 3
+
+;*******************************************************************
+;void ff_ps_mul_pair_single_sse(float (*dst)[2], float (*src0)[2],
+;                                   float *src1, int n);
+;*******************************************************************
+INIT_XMM sse
+cglobal ps_mul_pair_single, 4, 4, 4, dst, src1, src2, n
+    shl      nd, 3
+    add   src1q, nq
+    add    dstq, nq
+    neg      nq
+
+align 16
+.loop:
+    movu     m0, [src1q+nq]
+    movu     m1, [src1q+nq+mmsize]
+    mova     m2, [src2q]
+    mova     m3, m2
+    unpcklps m2, m2
+    unpckhps m3, m3
+    mulps    m0, m2
+    mulps    m1, m3
+    mova [dstq+nq], m0
+    mova [dstq+nq+mmsize], m1
+    add   src2q, mmsize
+    add      nq, mmsize*2
+    jl .loop
+    REP_RET
+
+;***********************************************************************
+;void ff_ps_stereo_interpolate_sse3(float (*l)[2], float (*r)[2],
+;                                   float h[2][4], float h_step[2][4],
+;                                   int len);
+;***********************************************************************
+INIT_XMM sse3
+cglobal ps_stereo_interpolate, 5, 5, 6, l, r, h, h_step, n
+    movaps   m0, [hq]
+    movaps   m1, [h_stepq]
+    unpcklps m4, m0, m0
+    unpckhps m0, m0
+    unpcklps m5, m1, m1
+    unpckhps m1, m1
+    shl      nd, 3
+    add      lq, nq
+    add      rq, nq
+    neg      nq
+
+align 16
+.loop:
+    addps    m4, m5
+    addps    m0, m1
+    movddup  m2, [lq+nq]
+    movddup  m3, [rq+nq]
+    mulps    m2, m4
+    mulps    m3, m0
+    addps    m2, m3
+    movsd  [lq+nq], m2
+    movhps [rq+nq], m2
+    add      nq, 8
+    jl .loop
+    REP_RET
+
+;***************************************************************************
+;void ps_stereo_interpolate_ipdopd_sse3(float (*l)[2], float (*r)[2],
+;                                       float h[2][4], float h_step[2][4],
+;                                       int len);
+;***************************************************************************
+INIT_XMM sse3
+cglobal ps_stereo_interpolate_ipdopd, 5, 5, 10, l, r, h, h_step, n
+    movaps   m0, [hq]
+    movaps   m1, [hq+mmsize]
+%if ARCH_X86_64
+    movaps   m8, [h_stepq]
+    movaps   m9, [h_stepq+mmsize]
+    %define  H_STEP0 m8
+    %define  H_STEP1 m9
+%else
+    %define  H_STEP0 [h_stepq]
+    %define  H_STEP1 [h_stepq+mmsize]
+%endif
+    shl      nd, 3
+    add      lq, nq
+    add      rq, nq
+    neg      nq
+
+align 16
+.loop:
+    addps    m0, H_STEP0
+    addps    m1, H_STEP1
+    movddup  m2, [lq+nq]
+    movddup  m3, [rq+nq]
+    shufps   m4, m2, m2, q2301
+    shufps   m5, m3, m3, q2301
+    unpcklps m6, m0, m0
+    unpckhps m7, m0, m0
+    mulps    m2, m6
+    mulps    m3, m7
+    unpcklps m6, m1, m1
+    unpckhps m7, m1, m1
+    mulps    m4, m6
+    mulps    m5, m7
+    addps    m2, m3
+    addsubps m2, m4
+    addsubps m2, m5
+    movsd  [lq+nq], m2
+    movhps [rq+nq], m2
+    add      nq, 8
+    jl .loop
+    REP_RET
+
+;**********************************************************
+;void ps_hybrid_analysis_ileave_sse(float out[2][38][64],
+;                                   float (*in)[32][2],
+;                                   int i, int len)
+;**********************************************************
+INIT_XMM sse
+cglobal ps_hybrid_analysis_ileave, 3, 7, 5, out, in, i, len, in0, in1, tmp
+    movsxdifnidn        iq, id
+    mov               lend, 32 << 3
+    lea                inq, [inq+iq*4]
+    mov               tmpd, id
+    shl               tmpd, 8
+    add               outq, tmpq
+    mov               tmpd, 64
+    sub               tmpd, id
+    mov                 id, tmpd
+
+    test                id, 1
+    jne .loop4
+    test                id, 2
+    jne .loop8
+
+align 16
+.loop16:
+    mov               in0q, inq
+    mov               in1q, 38*64*4
+    add               in1q, in0q
+    mov               tmpd, lend
+
+.inner_loop16:
+    movaps              m0, [in0q]
+    movaps              m1, [in1q]
+    movaps              m2, [in0q+lenq]
+    movaps              m3, [in1q+lenq]
+    TRANSPOSE4x4PS 0, 1, 2, 3, 4
+    movaps          [outq], m0
+    movaps     [outq+lenq], m1
+    movaps   [outq+lenq*2], m2
+    movaps [outq+3*32*2*4], m3
+    lea               in0q, [in0q+lenq*2]
+    lea               in1q, [in1q+lenq*2]
+    add               outq, mmsize
+    sub               tmpd, mmsize
+    jg .inner_loop16
+    add                inq, 16
+    add               outq, 3*32*2*4
+    sub                 id, 4
+    jg .loop16
+    RET
+
+align 16
+.loop8:
+    mov               in0q, inq
+    mov               in1q, 38*64*4
+    add               in1q, in0q
+    mov               tmpd, lend
+
+.inner_loop8:
+    movlps              m0, [in0q]
+    movlps              m1, [in1q]
+    movhps              m0, [in0q+lenq]
+    movhps              m1, [in1q+lenq]
+    SBUTTERFLYPS 0, 1, 2
+    SBUTTERFLYPD 0, 1, 2
+    movaps          [outq], m0
+    movaps     [outq+lenq], m1
+    lea               in0q, [in0q+lenq*2]
+    lea               in1q, [in1q+lenq*2]
+    add               outq, mmsize
+    sub               tmpd, mmsize
+    jg .inner_loop8
+    add                inq, 8
+    add               outq, lenq
+    sub                 id, 2
+    jg .loop16
+    RET
+
+align 16
+.loop4:
+    mov               in0q, inq
+    mov               in1q, 38*64*4
+    add               in1q, in0q
+    mov               tmpd, lend
+
+.inner_loop4:
+    movss               m0, [in0q]
+    movss               m1, [in1q]
+    movss               m2, [in0q+lenq]
+    movss               m3, [in1q+lenq]
+    movlhps             m0, m1
+    movlhps             m2, m3
+    shufps              m0, m2, q2020
+    movaps          [outq], m0
+    lea               in0q, [in0q+lenq*2]
+    lea               in1q, [in1q+lenq*2]
+    add               outq, mmsize
+    sub               tmpd, mmsize
+    jg .inner_loop4
+    add                inq, 4
+    sub                 id, 1
+    test                id, 2
+    jne .loop8
+    cmp                 id, 4
+    jge .loop16
+    RET
+
+;***********************************************************
+;void ps_hybrid_synthesis_deint_sse4(float out[2][38][64],
+;                                    float (*in)[32][2],
+;                                    int i, int len)
+;***********************************************************
+%macro HYBRID_SYNTHESIS_DEINT 0
+cglobal ps_hybrid_synthesis_deint, 3, 7, 5, out, in, i, len, out0, out1, tmp
+%if cpuflag(sse4)
+%define MOVH movsd
+%else
+%define MOVH movlps
+%endif
+    movsxdifnidn        iq, id
+    mov               lend, 32 << 3
+    lea               outq, [outq+iq*4]
+    mov               tmpd, id
+    shl               tmpd, 8
+    add                inq, tmpq
+    mov               tmpd, 64
+    sub               tmpd, id
+    mov                 id, tmpd
+
+    test                id, 1
+    jne .loop4
+    test                id, 2
+    jne .loop8
+
+align 16
+.loop16:
+    mov              out0q, outq
+    mov              out1q, 38*64*4
+    add              out1q, out0q
+    mov               tmpd, lend
+
+.inner_loop16:
+    movaps              m0, [inq]
+    movaps              m1, [inq+lenq]
+    movaps              m2, [inq+lenq*2]
+    movaps              m3, [inq+3*32*2*4]
+    TRANSPOSE4x4PS 0, 1, 2, 3, 4
+    movaps         [out0q], m0
+    movaps         [out1q], m1
+    movaps    [out0q+lenq], m2
+    movaps    [out1q+lenq], m3
+    lea              out0q, [out0q+lenq*2]
+    lea              out1q, [out1q+lenq*2]
+    add                inq, mmsize
+    sub               tmpd, mmsize
+    jg .inner_loop16
+    add               outq, 16
+    add                inq, 3*32*2*4
+    sub                 id, 4
+    jg .loop16
+    RET
+
+align 16
+.loop8:
+    mov              out0q, outq
+    mov              out1q, 38*64*4
+    add              out1q, out0q
+    mov               tmpd, lend
+
+.inner_loop8:
+    movaps              m0, [inq]
+    movaps              m1, [inq+lenq]
+    SBUTTERFLYPS 0, 1, 2
+    SBUTTERFLYPD 0, 1, 2
+    MOVH           [out0q], m0
+    MOVH           [out1q], m1
+    movhps    [out0q+lenq], m0
+    movhps    [out1q+lenq], m1
+    lea              out0q, [out0q+lenq*2]
+    lea              out1q, [out1q+lenq*2]
+    add                inq, mmsize
+    sub               tmpd, mmsize
+    jg .inner_loop8
+    add               outq, 8
+    add                inq, lenq
+    sub                 id, 2
+    jg .loop16
+    RET
+
+align 16
+.loop4:
+    mov              out0q, outq
+    mov              out1q, 38*64*4
+    add              out1q, out0q
+    mov               tmpd, lend
+
+.inner_loop4:
+    movaps              m0, [inq]
+    movss          [out0q], m0
+%if cpuflag(sse4)
+    extractps      [out1q], m0, 1
+    extractps [out0q+lenq], m0, 2
+    extractps [out1q+lenq], m0, 3
+%else
+    movhlps             m1, m0
+    movss     [out0q+lenq], m1
+    shufps              m0, m0, 0xb1
+    movss          [out1q], m0
+    movhlps             m1, m0
+    movss     [out1q+lenq], m1
+%endif
+    lea              out0q, [out0q+lenq*2]
+    lea              out1q, [out1q+lenq*2]
+    add                inq, mmsize
+    sub               tmpd, mmsize
+    jg .inner_loop4
+    add               outq, 4
+    sub                 id, 1
+    test                id, 2
+    jne .loop8
+    cmp                 id, 4
+    jge .loop16
+    RET
+%endmacro
+
+INIT_XMM sse
+HYBRID_SYNTHESIS_DEINT
+INIT_XMM sse4
+HYBRID_SYNTHESIS_DEINT
+
+;*******************************************************************
+;void ff_ps_hybrid_analysis_<opt>(float (*out)[2], float (*in)[2],
+;                                 const float (*filter)[8][2],
+;                                 ptrdiff_t stride, int n);
+;*******************************************************************
+%macro PS_HYBRID_ANALYSIS_LOOP 3
+    movu     %1, [inq+mmsize*%3]
+    movu     m1, [inq+mmsize*(5-%3)+8]
+%if cpuflag(sse3)
+    pshufd   %2, %1, q2301
+    pshufd   m4, m1, q0123
+    pshufd   m1, m1, q1032
+    pshufd   m2, [filterq+nq+mmsize*%3], q2301
+    addsubps %2, m4
+    addsubps %1, m1
+%else
+    mova     m2, [filterq+nq+mmsize*%3]
+    mova     %2, %1
+    mova     m4, m1
+    shufps   %2, %2, q2301
+    shufps   m4, m4, q0123
+    shufps   m1, m1, q1032
+    shufps   m2, m2, q2301
+    xorps    m4, m7
+    xorps    m1, m7
+    subps    %2, m4
+    subps    %1, m1
+%endif
+    mulps    %2, m2
+    mulps    %1, m2
+%if %3
+    addps    m3, %2
+    addps    m0, %1
+%endif
+%endmacro
+
+%macro PS_HYBRID_ANALYSIS 0
+cglobal ps_hybrid_analysis, 5, 5, 8, out, in, filter, stride, n
+%if cpuflag(sse3)
+%define MOVH movsd
+%else
+%define MOVH movlps
+%endif
+    shl strideq, 3
+    shl nd, 6
+    add filterq, nq
+    neg nq
+    mova m7, [ps_p1m1p1m1]
+
+align 16
+.loop:
+    PS_HYBRID_ANALYSIS_LOOP m0, m3, 0
+    PS_HYBRID_ANALYSIS_LOOP m5, m6, 1
+    PS_HYBRID_ANALYSIS_LOOP m5, m6, 2
+
+%if cpuflag(sse3)
+    pshufd   m3, m3, q2301
+    xorps    m0, m7
+    hsubps   m3, m0
+    pshufd   m1, m3, q0020
+    pshufd   m3, m3, q0031
+    addps    m1, m3
+    movsd    m2, [inq+6*8]
+%else
+    mova     m1, m3
+    mova     m2, m0
+    shufps   m1, m1, q2301
+    shufps   m2, m2, q2301
+    subps    m1, m3
+    addps    m2, m0
+    unpcklps m3, m1, m2
+    unpckhps m1, m2
+    addps    m1, m3
+    movu     m2, [inq+6*8] ; faster than movlps and no risk of overread
+%endif
+    movss    m3, [filterq+nq+8*6]
+    SPLATD   m3
+    mulps    m2, m3
+    addps    m1, m2
+    MOVH [outq], m1
+    add    outq, strideq
+    add      nq, 64
+    jl .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+PS_HYBRID_ANALYSIS
+INIT_XMM sse3
+PS_HYBRID_ANALYSIS
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/aacpsdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/aacpsdsp_init.c
new file mode 100644
index 000000000..21f00efa2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/aacpsdsp_init.c
@@ -0,0 +1,72 @@
+/*
+ * SIMD optimized MPEG-4 Parametric Stereo decoding functions
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+
+#include "config.h"
+
+#include "libavutil/x86/cpu.h"
+#include "libavutil/attributes.h"
+#include "libavcodec/aacpsdsp.h"
+
+void ff_ps_add_squares_sse  (float *dst, const float (*src)[2], int n);
+void ff_ps_add_squares_sse3 (float *dst, const float (*src)[2], int n);
+void ff_ps_mul_pair_single_sse (float (*dst)[2], float (*src0)[2],
+                                float *src1, int n);
+void ff_ps_hybrid_analysis_sse (float (*out)[2], float (*in)[2],
+                                const float (*filter)[8][2],
+                                ptrdiff_t stride, int n);
+void ff_ps_hybrid_analysis_sse3(float (*out)[2], float (*in)[2],
+                                const float (*filter)[8][2],
+                                ptrdiff_t stride, int n);
+void ff_ps_stereo_interpolate_sse3(float (*l)[2], float (*r)[2],
+                                   float h[2][4], float h_step[2][4],
+                                   int len);
+void ff_ps_stereo_interpolate_ipdopd_sse3(float (*l)[2], float (*r)[2],
+                                          float h[2][4], float h_step[2][4],
+                                          int len);
+void ff_ps_hybrid_synthesis_deint_sse(float out[2][38][64], float (*in)[32][2],
+                                      int i, int len);
+void ff_ps_hybrid_synthesis_deint_sse4(float out[2][38][64], float (*in)[32][2],
+                                       int i, int len);
+void ff_ps_hybrid_analysis_ileave_sse(float (*out)[32][2], float L[2][38][64],
+                                      int i, int len);
+
+av_cold void ff_psdsp_init_x86(PSDSPContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        s->add_squares            = ff_ps_add_squares_sse;
+        s->mul_pair_single        = ff_ps_mul_pair_single_sse;
+        s->hybrid_analysis_ileave = ff_ps_hybrid_analysis_ileave_sse;
+        s->hybrid_synthesis_deint = ff_ps_hybrid_synthesis_deint_sse;
+        s->hybrid_analysis        = ff_ps_hybrid_analysis_sse;
+    }
+    if (EXTERNAL_SSE3(cpu_flags)) {
+        s->add_squares            = ff_ps_add_squares_sse3;
+        s->stereo_interpolate[0]  = ff_ps_stereo_interpolate_sse3;
+        s->stereo_interpolate[1]  = ff_ps_stereo_interpolate_ipdopd_sse3;
+        s->hybrid_analysis        = ff_ps_hybrid_analysis_sse3;
+    }
+    if (EXTERNAL_SSE4(cpu_flags)) {
+        s->hybrid_synthesis_deint = ff_ps_hybrid_synthesis_deint_sse4;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/ac3dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/ac3dsp_init.c
new file mode 100644
index 000000000..2e7e2fb6d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/ac3dsp_init.c
@@ -0,0 +1,164 @@
+/*
+ * x86-optimized AC-3 DSP functions
+ * Copyright (c) 2011 Justin Ruggles
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/ac3.h"
+#include "libavcodec/ac3dsp.h"
+
+void ff_ac3_exponent_min_mmx   (uint8_t *exp, int num_reuse_blocks, int nb_coefs);
+void ff_ac3_exponent_min_mmxext(uint8_t *exp, int num_reuse_blocks, int nb_coefs);
+void ff_ac3_exponent_min_sse2  (uint8_t *exp, int num_reuse_blocks, int nb_coefs);
+
+int ff_ac3_max_msb_abs_int16_mmx  (const int16_t *src, int len);
+int ff_ac3_max_msb_abs_int16_mmxext(const int16_t *src, int len);
+int ff_ac3_max_msb_abs_int16_sse2 (const int16_t *src, int len);
+int ff_ac3_max_msb_abs_int16_ssse3(const int16_t *src, int len);
+
+void ff_ac3_lshift_int16_mmx (int16_t *src, unsigned int len, unsigned int shift);
+void ff_ac3_lshift_int16_sse2(int16_t *src, unsigned int len, unsigned int shift);
+
+void ff_ac3_rshift_int32_mmx (int32_t *src, unsigned int len, unsigned int shift);
+void ff_ac3_rshift_int32_sse2(int32_t *src, unsigned int len, unsigned int shift);
+
+void ff_float_to_fixed24_3dnow(int32_t *dst, const float *src, unsigned int len);
+void ff_float_to_fixed24_sse  (int32_t *dst, const float *src, unsigned int len);
+void ff_float_to_fixed24_sse2 (int32_t *dst, const float *src, unsigned int len);
+
+int ff_ac3_compute_mantissa_size_sse2(uint16_t mant_cnt[6][16]);
+
+void ff_ac3_extract_exponents_sse2 (uint8_t *exp, int32_t *coef, int nb_coefs);
+void ff_ac3_extract_exponents_ssse3(uint8_t *exp, int32_t *coef, int nb_coefs);
+
+void ff_apply_window_int16_round_mmxext(int16_t *output, const int16_t *input,
+                                        const int16_t *window, unsigned int len);
+void ff_apply_window_int16_round_sse2(int16_t *output, const int16_t *input,
+                                      const int16_t *window, unsigned int len);
+void ff_apply_window_int16_mmxext(int16_t *output, const int16_t *input,
+                                  const int16_t *window, unsigned int len);
+void ff_apply_window_int16_sse2(int16_t *output, const int16_t *input,
+                                const int16_t *window, unsigned int len);
+void ff_apply_window_int16_ssse3(int16_t *output, const int16_t *input,
+                                 const int16_t *window, unsigned int len);
+void ff_apply_window_int16_ssse3_atom(int16_t *output, const int16_t *input,
+                                      const int16_t *window, unsigned int len);
+
+av_cold void ff_ac3dsp_init_x86(AC3DSPContext *c, int bit_exact)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->ac3_exponent_min = ff_ac3_exponent_min_mmx;
+        c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_mmx;
+        c->ac3_lshift_int16 = ff_ac3_lshift_int16_mmx;
+        c->ac3_rshift_int32 = ff_ac3_rshift_int32_mmx;
+    }
+    if (EXTERNAL_AMD3DNOW(cpu_flags)) {
+        if (!bit_exact) {
+            c->float_to_fixed24 = ff_float_to_fixed24_3dnow;
+        }
+    }
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        c->ac3_exponent_min = ff_ac3_exponent_min_mmxext;
+        c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_mmxext;
+        if (bit_exact) {
+            c->apply_window_int16 = ff_apply_window_int16_mmxext;
+        } else {
+            c->apply_window_int16 = ff_apply_window_int16_round_mmxext;
+        }
+    }
+    if (EXTERNAL_SSE(cpu_flags)) {
+        c->float_to_fixed24 = ff_float_to_fixed24_sse;
+    }
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->ac3_exponent_min = ff_ac3_exponent_min_sse2;
+        c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_sse2;
+        c->float_to_fixed24 = ff_float_to_fixed24_sse2;
+        c->compute_mantissa_size = ff_ac3_compute_mantissa_size_sse2;
+        c->extract_exponents = ff_ac3_extract_exponents_sse2;
+        if (bit_exact) {
+            c->apply_window_int16 = ff_apply_window_int16_sse2;
+        }
+    }
+
+    if (EXTERNAL_SSE2_FAST(cpu_flags)) {
+        c->ac3_lshift_int16 = ff_ac3_lshift_int16_sse2;
+        c->ac3_rshift_int32 = ff_ac3_rshift_int32_sse2;
+        if (!bit_exact) {
+            c->apply_window_int16 = ff_apply_window_int16_round_sse2;
+        }
+    }
+
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_ssse3;
+        if (cpu_flags & AV_CPU_FLAG_ATOM) {
+            c->apply_window_int16 = ff_apply_window_int16_ssse3_atom;
+        } else {
+            c->extract_exponents = ff_ac3_extract_exponents_ssse3;
+            c->apply_window_int16 = ff_apply_window_int16_ssse3;
+        }
+    }
+}
+
+#define DOWNMIX_FUNC_OPT(ch, opt)                                       \
+void ff_ac3_downmix_ ## ch ## _to_1_ ## opt(float **samples,            \
+                                            float **matrix, int len);   \
+void ff_ac3_downmix_ ## ch ## _to_2_ ## opt(float **samples,            \
+                                            float **matrix, int len);
+
+#define DOWNMIX_FUNCS(opt)   \
+    DOWNMIX_FUNC_OPT(3, opt) \
+    DOWNMIX_FUNC_OPT(4, opt) \
+    DOWNMIX_FUNC_OPT(5, opt) \
+    DOWNMIX_FUNC_OPT(6, opt)
+
+DOWNMIX_FUNCS(sse)
+DOWNMIX_FUNCS(avx)
+DOWNMIX_FUNCS(fma3)
+
+void ff_ac3dsp_set_downmix_x86(AC3DSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+#define SET_DOWNMIX(ch, suf, SUF)                                       \
+    if (ch == c->in_channels) {                                         \
+        if (EXTERNAL_ ## SUF (cpu_flags)) {                             \
+            if (c->out_channels == 1)                                   \
+                c->downmix = ff_ac3_downmix_ ## ch ## _to_1_ ## suf;    \
+            else                                                        \
+                c->downmix = ff_ac3_downmix_ ## ch ## _to_2_ ## suf;    \
+        }                                                               \
+    }
+
+#define SET_DOWNMIX_ALL(suf, SUF)                   \
+    SET_DOWNMIX(3, suf, SUF)                        \
+    SET_DOWNMIX(4, suf, SUF)                        \
+    SET_DOWNMIX(5, suf, SUF)                        \
+    SET_DOWNMIX(6, suf, SUF)
+
+    SET_DOWNMIX_ALL(sse,  SSE)
+    if (!(cpu_flags & AV_CPU_FLAG_AVXSLOW)) {
+        SET_DOWNMIX_ALL(avx,  AVX)
+        SET_DOWNMIX_ALL(fma3, FMA3)
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/alacdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/alacdsp_init.c
new file mode 100644
index 000000000..18f7308a1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/alacdsp_init.c
@@ -0,0 +1,44 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/alacdsp.h"
+#include "config.h"
+
+void ff_alac_decorrelate_stereo_sse4(int32_t *buffer[2], int nb_samples,
+                                     int decorr_shift, int decorr_left_weight);
+void ff_alac_append_extra_bits_stereo_sse2(int32_t *buffer[2], int32_t *extra_bits_buffer[2],
+                                           int extra_bits, int channels, int nb_samples);
+void ff_alac_append_extra_bits_mono_sse2(int32_t *buffer[2], int32_t *extra_bits_buffer[2],
+                                         int extra_bits, int channels, int nb_samples);
+
+av_cold void ff_alacdsp_init_x86(ALACDSPContext *c)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->append_extra_bits[0] = ff_alac_append_extra_bits_mono_sse2;
+        c->append_extra_bits[1] = ff_alac_append_extra_bits_stereo_sse2;
+    }
+    if (EXTERNAL_SSE4(cpu_flags)) {
+        c->decorrelate_stereo   = ff_alac_decorrelate_stereo_sse4;
+    }
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/audiodsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/audiodsp_init.c
new file mode 100644
index 000000000..98e296c26
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/audiodsp_init.c
@@ -0,0 +1,66 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/audiodsp.h"
+
+int32_t ff_scalarproduct_int16_mmxext(const int16_t *v1, const int16_t *v2,
+                                      int order);
+int32_t ff_scalarproduct_int16_sse2(const int16_t *v1, const int16_t *v2,
+                                    int order);
+
+void ff_vector_clip_int32_mmx(int32_t *dst, const int32_t *src,
+                              int32_t min, int32_t max, unsigned int len);
+void ff_vector_clip_int32_sse2(int32_t *dst, const int32_t *src,
+                               int32_t min, int32_t max, unsigned int len);
+void ff_vector_clip_int32_int_sse2(int32_t *dst, const int32_t *src,
+                                   int32_t min, int32_t max, unsigned int len);
+void ff_vector_clip_int32_sse4(int32_t *dst, const int32_t *src,
+                               int32_t min, int32_t max, unsigned int len);
+void ff_vector_clipf_sse(float *dst, const float *src,
+                         int len, float min, float max);
+
+av_cold void ff_audiodsp_init_x86(AudioDSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags))
+        c->vector_clip_int32 = ff_vector_clip_int32_mmx;
+
+    if (EXTERNAL_MMXEXT(cpu_flags))
+        c->scalarproduct_int16 = ff_scalarproduct_int16_mmxext;
+
+    if (EXTERNAL_SSE(cpu_flags))
+        c->vector_clipf = ff_vector_clipf_sse;
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->scalarproduct_int16 = ff_scalarproduct_int16_sse2;
+        if (cpu_flags & AV_CPU_FLAG_ATOM)
+            c->vector_clip_int32 = ff_vector_clip_int32_int_sse2;
+        else
+            c->vector_clip_int32 = ff_vector_clip_int32_sse2;
+    }
+
+    if (EXTERNAL_SSE4(cpu_flags))
+        c->vector_clip_int32 = ff_vector_clip_int32_sse4;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/blockdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/blockdsp_init.c
new file mode 100644
index 000000000..8b01a447c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/blockdsp_init.c
@@ -0,0 +1,60 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/internal.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/blockdsp.h"
+#include "libavcodec/version.h"
+
+void ff_clear_block_mmx(int16_t *block);
+void ff_clear_block_sse(int16_t *block);
+void ff_clear_block_avx(int16_t *block);
+void ff_clear_blocks_mmx(int16_t *blocks);
+void ff_clear_blocks_sse(int16_t *blocks);
+void ff_clear_blocks_avx(int16_t *blocks);
+
+av_cold void ff_blockdsp_init_x86(BlockDSPContext *c,
+                                  AVCodecContext *avctx)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->clear_block  = ff_clear_block_mmx;
+        c->clear_blocks = ff_clear_blocks_mmx;
+    }
+
+    /* XvMCCreateBlocks() may not allocate 16-byte aligned blocks */
+    if (CONFIG_XVMC && avctx->hwaccel && avctx->hwaccel->decode_mb)
+        return;
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        c->clear_block  = ff_clear_block_sse;
+        c->clear_blocks = ff_clear_blocks_sse;
+    }
+    if (EXTERNAL_AVX_FAST(cpu_flags)) {
+        c->clear_block  = ff_clear_block_avx;
+        c->clear_blocks = ff_clear_blocks_avx;
+    }
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/bswapdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/bswapdsp_init.c
new file mode 100644
index 000000000..877bab1a2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/bswapdsp_init.c
@@ -0,0 +1,40 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/bswapdsp.h"
+
+void ff_bswap32_buf_sse2(uint32_t *dst, const uint32_t *src, int w);
+void ff_bswap32_buf_ssse3(uint32_t *dst, const uint32_t *src, int w);
+void ff_bswap32_buf_avx2(uint32_t *dst, const uint32_t *src, int w);
+
+av_cold void ff_bswapdsp_init_x86(BswapDSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE2(cpu_flags))
+        c->bswap_buf = ff_bswap32_buf_sse2;
+    if (EXTERNAL_SSSE3(cpu_flags))
+        c->bswap_buf = ff_bswap32_buf_ssse3;
+    if (EXTERNAL_AVX2_FAST(cpu_flags))
+        c->bswap_buf = ff_bswap32_buf_avx2;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/cabac.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/cabac.h
new file mode 100644
index 000000000..cfd3b759c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/cabac.h
@@ -0,0 +1,301 @@
+/*
+ * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_CABAC_H
+#define AVCODEC_X86_CABAC_H
+
+#include "libavcodec/cabac.h"
+#include "libavutil/attributes.h"
+#include "libavutil/macros.h"
+#include "libavutil/x86/asm.h"
+#include "config.h"
+
+#if   (defined(__i386) && defined(__clang__) && (__clang_major__<2 || (__clang_major__==2 && __clang_minor__<10)))\
+   || (                  !defined(__clang__) && defined(__llvm__) && __GNUC__==4 && __GNUC_MINOR__==2 && __GNUC_PATCHLEVEL__<=1)\
+   || (defined(__INTEL_COMPILER) && defined(_MSC_VER))
+#       define BROKEN_COMPILER 1
+#else
+#       define BROKEN_COMPILER 0
+#endif
+
+#if HAVE_INLINE_ASM
+
+#ifndef UNCHECKED_BITSTREAM_READER
+#define UNCHECKED_BITSTREAM_READER !CONFIG_SAFE_BITSTREAM_READER
+#endif
+
+#if UNCHECKED_BITSTREAM_READER
+#define END_CHECK(end) ""
+#else
+#define END_CHECK(end) \
+        "cmp    "end"       , %%"FF_REG_c"                              \n\t"\
+        "jge    1f                                                      \n\t"
+#endif
+
+#ifdef BROKEN_RELOCATIONS
+#define TABLES_ARG , "r"(tables)
+
+#if HAVE_FAST_CMOV
+#define BRANCHLESS_GET_CABAC_UPDATE(ret, retq, low, range, tmp) \
+        "cmp    "low"       , "tmp"                        \n\t"\
+        "cmova  %%ecx       , "range"                      \n\t"\
+        "sbb    %%rcx       , %%rcx                        \n\t"\
+        "and    %%ecx       , "tmp"                        \n\t"\
+        "xor    %%rcx       , "retq"                       \n\t"\
+        "sub    "tmp"       , "low"                        \n\t"
+#else /* HAVE_FAST_CMOV */
+#define BRANCHLESS_GET_CABAC_UPDATE(ret, retq, low, range, tmp) \
+/* P4 Prescott has crappy cmov,sbb,64-bit shift so avoid them */ \
+        "sub    "low"       , "tmp"                        \n\t"\
+        "sar    $31         , "tmp"                        \n\t"\
+        "sub    %%ecx       , "range"                      \n\t"\
+        "and    "tmp"       , "range"                      \n\t"\
+        "add    %%ecx       , "range"                      \n\t"\
+        "shl    $17         , %%ecx                        \n\t"\
+        "and    "tmp"       , %%ecx                        \n\t"\
+        "sub    %%ecx       , "low"                        \n\t"\
+        "xor    "tmp"       , "ret"                        \n\t"\
+        "movslq "ret"       , "retq"                       \n\t"
+#endif /* HAVE_FAST_CMOV */
+
+#define BRANCHLESS_GET_CABAC(ret, retq, statep, low, lowword, range, rangeq, tmp, tmpbyte, byte, end, norm_off, lps_off, mlps_off, tables) \
+        "movzbl "statep"    , "ret"                                     \n\t"\
+        "mov    "range"     , "tmp"                                     \n\t"\
+        "and    $0xC0       , "range"                                   \n\t"\
+        "lea    ("ret", "range", 2), %%ecx                              \n\t"\
+        "movzbl "lps_off"("tables", %%rcx), "range"                     \n\t"\
+        "sub    "range"     , "tmp"                                     \n\t"\
+        "mov    "tmp"       , %%ecx                                     \n\t"\
+        "shl    $17         , "tmp"                                     \n\t"\
+        BRANCHLESS_GET_CABAC_UPDATE(ret, retq, low, range, tmp)              \
+        "movzbl "norm_off"("tables", "rangeq"), %%ecx                   \n\t"\
+        "shl    %%cl        , "range"                                   \n\t"\
+        "movzbl "mlps_off"+128("tables", "retq"), "tmp"                 \n\t"\
+        "shl    %%cl        , "low"                                     \n\t"\
+        "mov    "tmpbyte"   , "statep"                                  \n\t"\
+        "test   "lowword"   , "lowword"                                 \n\t"\
+        "jnz    2f                                                      \n\t"\
+        "mov    "byte"      , %%"FF_REG_c"                              \n\t"\
+        END_CHECK(end)\
+        "add"FF_OPSIZE" $2  , "byte"                                    \n\t"\
+        "1:                                                             \n\t"\
+        "movzwl (%%"FF_REG_c") , "tmp"                                  \n\t"\
+        "lea    -1("low")   , %%ecx                                     \n\t"\
+        "xor    "low"       , %%ecx                                     \n\t"\
+        "shr    $15         , %%ecx                                     \n\t"\
+        "bswap  "tmp"                                                   \n\t"\
+        "shr    $15         , "tmp"                                     \n\t"\
+        "movzbl "norm_off"("tables", %%rcx), %%ecx                      \n\t"\
+        "sub    $0xFFFF     , "tmp"                                     \n\t"\
+        "neg    %%ecx                                                   \n\t"\
+        "add    $7          , %%ecx                                     \n\t"\
+        "shl    %%cl        , "tmp"                                     \n\t"\
+        "add    "tmp"       , "low"                                     \n\t"\
+        "2:                                                             \n\t"
+
+#else /* BROKEN_RELOCATIONS */
+#define TABLES_ARG NAMED_CONSTRAINTS_ARRAY_ADD(ff_h264_cabac_tables)
+#define RIP_ARG
+
+#if HAVE_FAST_CMOV
+#define BRANCHLESS_GET_CABAC_UPDATE(ret, low, range, tmp)\
+        "mov    "tmp"       , %%ecx     \n\t"\
+        "shl    $17         , "tmp"     \n\t"\
+        "cmp    "low"       , "tmp"     \n\t"\
+        "cmova  %%ecx       , "range"   \n\t"\
+        "sbb    %%ecx       , %%ecx     \n\t"\
+        "and    %%ecx       , "tmp"     \n\t"\
+        "xor    %%ecx       , "ret"     \n\t"\
+        "sub    "tmp"       , "low"     \n\t"
+#else /* HAVE_FAST_CMOV */
+#define BRANCHLESS_GET_CABAC_UPDATE(ret, low, range, tmp)\
+        "mov    "tmp"       , %%ecx     \n\t"\
+        "shl    $17         , "tmp"     \n\t"\
+        "sub    "low"       , "tmp"     \n\t"\
+        "sar    $31         , "tmp"     \n\t" /*lps_mask*/\
+        "sub    %%ecx       , "range"   \n\t" /*RangeLPS - range*/\
+        "and    "tmp"       , "range"   \n\t" /*(RangeLPS - range)&lps_mask*/\
+        "add    %%ecx       , "range"   \n\t" /*new range*/\
+        "shl    $17         , %%ecx     \n\t"\
+        "and    "tmp"       , %%ecx     \n\t"\
+        "sub    %%ecx       , "low"     \n\t"\
+        "xor    "tmp"       , "ret"     \n\t"
+#endif /* HAVE_FAST_CMOV */
+
+#define BRANCHLESS_GET_CABAC(ret, retq, statep, low, lowword, range, rangeq, tmp, tmpbyte, byte, end, norm_off, lps_off, mlps_off, tables) \
+        "movzbl "statep"    , "ret"                                     \n\t"\
+        "mov    "range"     , "tmp"                                     \n\t"\
+        "and    $0xC0       , "range"                                   \n\t"\
+        "movzbl "MANGLE(ff_h264_cabac_tables)"+"lps_off"("ret", "range", 2), "range" \n\t"\
+        "sub    "range"     , "tmp"                                     \n\t"\
+        BRANCHLESS_GET_CABAC_UPDATE(ret, low, range, tmp)                    \
+        "movzbl "MANGLE(ff_h264_cabac_tables)"+"norm_off"("range"), %%ecx    \n\t"\
+        "shl    %%cl        , "range"                                   \n\t"\
+        "movzbl "MANGLE(ff_h264_cabac_tables)"+"mlps_off"+128("ret"), "tmp"  \n\t"\
+        "shl    %%cl        , "low"                                     \n\t"\
+        "mov    "tmpbyte"   , "statep"                                  \n\t"\
+        "test   "lowword"   , "lowword"                                 \n\t"\
+        " jnz   2f                                                      \n\t"\
+        "mov    "byte"      , %%"FF_REG_c"                              \n\t"\
+        END_CHECK(end)\
+        "add"FF_OPSIZE" $2  , "byte"                                    \n\t"\
+        "1:                                                             \n\t"\
+        "movzwl (%%"FF_REG_c") , "tmp"                                  \n\t"\
+        "lea    -1("low")   , %%ecx                                     \n\t"\
+        "xor    "low"       , %%ecx                                     \n\t"\
+        "shr    $15         , %%ecx                                     \n\t"\
+        "bswap  "tmp"                                                   \n\t"\
+        "shr    $15         , "tmp"                                     \n\t"\
+        "movzbl "MANGLE(ff_h264_cabac_tables)"+"norm_off"(%%ecx), %%ecx \n\t"\
+        "sub    $0xFFFF     , "tmp"                                     \n\t"\
+        "neg    %%ecx                                                   \n\t"\
+        "add    $7          , %%ecx                                     \n\t"\
+        "shl    %%cl        , "tmp"                                     \n\t"\
+        "add    "tmp"       , "low"                                     \n\t"\
+        "2:                                                             \n\t"
+
+#endif /* BROKEN_RELOCATIONS */
+
+#if HAVE_7REGS && !BROKEN_COMPILER
+#define get_cabac_inline get_cabac_inline_x86
+static av_always_inline int get_cabac_inline_x86(CABACContext *c,
+                                                 uint8_t *const state)
+{
+    int bit, tmp;
+#ifdef BROKEN_RELOCATIONS
+    void *tables;
+
+    __asm__ volatile(
+        "lea    "MANGLE(ff_h264_cabac_tables)", %0      \n\t"
+        : "=&r"(tables)
+        : NAMED_CONSTRAINTS_ARRAY(ff_h264_cabac_tables)
+    );
+#endif
+
+    __asm__ volatile(
+        BRANCHLESS_GET_CABAC("%0", "%q0", "(%4)", "%1", "%w1",
+                             "%2", "%q2", "%3", "%b3",
+                             "%c6(%5)", "%c7(%5)",
+                             AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
+                             AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
+                             AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
+                             "%8")
+        : "=&r"(bit), "=&r"(c->low), "=&r"(c->range), "=&q"(tmp)
+        : "r"(state), "r"(c),
+          "i"(offsetof(CABACContext, bytestream)),
+          "i"(offsetof(CABACContext, bytestream_end))
+          TABLES_ARG
+          ,"1"(c->low), "2"(c->range)
+        : "%"FF_REG_c, "memory"
+    );
+    return bit & 1;
+}
+#endif /* HAVE_7REGS && !BROKEN_COMPILER */
+
+#if !BROKEN_COMPILER
+#define get_cabac_bypass_sign get_cabac_bypass_sign_x86
+static av_always_inline int get_cabac_bypass_sign_x86(CABACContext *c, int val)
+{
+    x86_reg tmp;
+    __asm__ volatile(
+        "movl        %c6(%2), %k1       \n\t"
+        "movl        %c3(%2), %%eax     \n\t"
+        "shl             $17, %k1       \n\t"
+        "add           %%eax, %%eax     \n\t"
+        "sub             %k1, %%eax     \n\t"
+        "cdq                            \n\t"
+        "and           %%edx, %k1       \n\t"
+        "add             %k1, %%eax     \n\t"
+        "xor           %%edx, %%ecx     \n\t"
+        "sub           %%edx, %%ecx     \n\t"
+        "test           %%ax, %%ax      \n\t"
+        "jnz              1f            \n\t"
+        "mov         %c4(%2), %1        \n\t"
+        "subl        $0xFFFF, %%eax     \n\t"
+        "movzwl         (%1), %%edx     \n\t"
+        "bswap         %%edx            \n\t"
+        "shrl            $15, %%edx     \n\t"
+#if UNCHECKED_BITSTREAM_READER
+        "add              $2, %1        \n\t"
+        "addl          %%edx, %%eax     \n\t"
+        "mov              %1, %c4(%2)   \n\t"
+#else
+        "addl          %%edx, %%eax     \n\t"
+        "cmp         %c5(%2), %1        \n\t"
+        "jge              1f            \n\t"
+        "add"FF_OPSIZE"   $2, %c4(%2)   \n\t"
+#endif
+        "1:                             \n\t"
+        "movl          %%eax, %c3(%2)   \n\t"
+
+        : "+c"(val), "=&r"(tmp)
+        : "r"(c),
+          "i"(offsetof(CABACContext, low)),
+          "i"(offsetof(CABACContext, bytestream)),
+          "i"(offsetof(CABACContext, bytestream_end)),
+          "i"(offsetof(CABACContext, range))
+        : "%eax", "%edx", "memory"
+    );
+    return val;
+}
+
+#define get_cabac_bypass get_cabac_bypass_x86
+static av_always_inline int get_cabac_bypass_x86(CABACContext *c)
+{
+    x86_reg tmp;
+    int res;
+    __asm__ volatile(
+        "movl        %c6(%2), %k1       \n\t"
+        "movl        %c3(%2), %%eax     \n\t"
+        "shl             $17, %k1       \n\t"
+        "add           %%eax, %%eax     \n\t"
+        "sub             %k1, %%eax     \n\t"
+        "cdq                            \n\t"
+        "and           %%edx, %k1       \n\t"
+        "add             %k1, %%eax     \n\t"
+        "inc           %%edx            \n\t"
+        "test           %%ax, %%ax      \n\t"
+        "jnz              1f            \n\t"
+        "mov         %c4(%2), %1        \n\t"
+        "subl        $0xFFFF, %%eax     \n\t"
+        "movzwl         (%1), %%ecx     \n\t"
+        "bswap         %%ecx            \n\t"
+        "shrl            $15, %%ecx     \n\t"
+        "addl          %%ecx, %%eax     \n\t"
+        "cmp         %c5(%2), %1        \n\t"
+        "jge              1f            \n\t"
+        "add"FF_OPSIZE"   $2, %c4(%2)   \n\t"
+        "1:                             \n\t"
+        "movl          %%eax, %c3(%2)   \n\t"
+
+        : "=&d"(res), "=&r"(tmp)
+        : "r"(c),
+          "i"(offsetof(CABACContext, low)),
+          "i"(offsetof(CABACContext, bytestream)),
+          "i"(offsetof(CABACContext, bytestream_end)),
+          "i"(offsetof(CABACContext, range))
+        : "%eax", "%ecx", "memory"
+    );
+    return res;
+}
+#endif /* !BROKEN_COMPILER */
+
+#endif /* HAVE_INLINE_ASM */
+#endif /* AVCODEC_X86_CABAC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/cavsdsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/cavsdsp.c
new file mode 100644
index 000000000..becb3a480
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/cavsdsp.c
@@ -0,0 +1,463 @@
+/*
+ * Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
+ * Copyright (c) 2006  Stefan Gehrer <stefan.gehrer@gmx.de>
+ *
+ * MMX-optimized DSP functions, based on H.264 optimizations by
+ * Michael Niedermayer and Loren Merritt
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/common.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/cavsdsp.h"
+#include "libavcodec/idctdsp.h"
+#include "constants.h"
+#include "fpel.h"
+#include "idctdsp.h"
+#include "config.h"
+
+
+#if HAVE_MMX_EXTERNAL
+
+void ff_cavs_idct8_mmx(int16_t *out, const int16_t *in);
+
+static void cavs_idct8_add_mmx(uint8_t *dst, int16_t *block, ptrdiff_t stride)
+{
+    LOCAL_ALIGNED(16, int16_t, b2, [64]);
+    ff_cavs_idct8_mmx(b2, block);
+    ff_add_pixels_clamped_mmx(b2, dst, stride);
+}
+
+void ff_cavs_idct8_sse2(int16_t *out, const int16_t *in);
+
+static void cavs_idct8_add_sse2(uint8_t *dst, int16_t *block, ptrdiff_t stride)
+{
+    LOCAL_ALIGNED(16, int16_t, b2, [64]);
+    ff_cavs_idct8_sse2(b2, block);
+    ff_add_pixels_clamped_sse2(b2, dst, stride);
+}
+
+#endif /* HAVE_MMX_EXTERNAL */
+
+#if (HAVE_MMXEXT_INLINE || HAVE_AMD3DNOW_INLINE)
+
+/*****************************************************************************
+ *
+ * motion compensation
+ *
+ ****************************************************************************/
+
+/* vertical filter [-1 -2 96 42 -7  0]  */
+#define QPEL_CAVSV1(A,B,C,D,E,F,OP,ADD, MUL1, MUL2) \
+        "movd (%0), "#F"            \n\t"\
+        "movq "#C", %%mm6           \n\t"\
+        "pmullw "MANGLE(MUL1)", %%mm6\n\t"\
+        "movq "#D", %%mm7           \n\t"\
+        "pmullw "MANGLE(MUL2)", %%mm7\n\t"\
+        "psllw $3, "#E"             \n\t"\
+        "psubw "#E", %%mm6          \n\t"\
+        "psraw $3, "#E"             \n\t"\
+        "paddw %%mm7, %%mm6         \n\t"\
+        "paddw "#E", %%mm6          \n\t"\
+        "paddw "#B", "#B"           \n\t"\
+        "pxor %%mm7, %%mm7          \n\t"\
+        "add %2, %0                 \n\t"\
+        "punpcklbw %%mm7, "#F"      \n\t"\
+        "psubw "#B", %%mm6          \n\t"\
+        "psraw $1, "#B"             \n\t"\
+        "psubw "#A", %%mm6          \n\t"\
+        "paddw "MANGLE(ADD)", %%mm6 \n\t"\
+        "psraw $7, %%mm6            \n\t"\
+        "packuswb %%mm6, %%mm6      \n\t"\
+        OP(%%mm6, (%1), A, d)            \
+        "add %3, %1                 \n\t"
+
+/* vertical filter [ 0 -1  5  5 -1  0]  */
+#define QPEL_CAVSV2(A,B,C,D,E,F,OP,ADD, MUL1, MUL2) \
+        "movd (%0), "#F"            \n\t"\
+        "movq "#C", %%mm6           \n\t"\
+        "paddw "#D", %%mm6          \n\t"\
+        "pmullw "MANGLE(MUL1)", %%mm6\n\t"\
+        "add %2, %0                 \n\t"\
+        "punpcklbw %%mm7, "#F"      \n\t"\
+        "psubw "#B", %%mm6          \n\t"\
+        "psubw "#E", %%mm6          \n\t"\
+        "paddw "MANGLE(ADD)", %%mm6 \n\t"\
+        "psraw $3, %%mm6            \n\t"\
+        "packuswb %%mm6, %%mm6      \n\t"\
+        OP(%%mm6, (%1), A, d)            \
+        "add %3, %1                 \n\t"
+
+/* vertical filter [ 0 -7 42 96 -2 -1]  */
+#define QPEL_CAVSV3(A,B,C,D,E,F,OP,ADD, MUL1, MUL2) \
+        "movd (%0), "#F"            \n\t"\
+        "movq "#C", %%mm6           \n\t"\
+        "pmullw "MANGLE(MUL2)", %%mm6\n\t"\
+        "movq "#D", %%mm7           \n\t"\
+        "pmullw "MANGLE(MUL1)", %%mm7\n\t"\
+        "psllw $3, "#B"             \n\t"\
+        "psubw "#B", %%mm6          \n\t"\
+        "psraw $3, "#B"             \n\t"\
+        "paddw %%mm7, %%mm6         \n\t"\
+        "paddw "#B", %%mm6          \n\t"\
+        "paddw "#E", "#E"           \n\t"\
+        "pxor %%mm7, %%mm7          \n\t"\
+        "add %2, %0                 \n\t"\
+        "punpcklbw %%mm7, "#F"      \n\t"\
+        "psubw "#E", %%mm6          \n\t"\
+        "psraw $1, "#E"             \n\t"\
+        "psubw "#F", %%mm6          \n\t"\
+        "paddw "MANGLE(ADD)", %%mm6 \n\t"\
+        "psraw $7, %%mm6            \n\t"\
+        "packuswb %%mm6, %%mm6      \n\t"\
+        OP(%%mm6, (%1), A, d)            \
+        "add %3, %1                 \n\t"
+
+
+#define QPEL_CAVSVNUM(VOP,OP,ADD,MUL1,MUL2)\
+    int w= 2;\
+    src -= 2*srcStride;\
+    \
+    while(w--){\
+      __asm__ volatile(\
+        "pxor %%mm7, %%mm7          \n\t"\
+        "movd (%0), %%mm0           \n\t"\
+        "add %2, %0                 \n\t"\
+        "movd (%0), %%mm1           \n\t"\
+        "add %2, %0                 \n\t"\
+        "movd (%0), %%mm2           \n\t"\
+        "add %2, %0                 \n\t"\
+        "movd (%0), %%mm3           \n\t"\
+        "add %2, %0                 \n\t"\
+        "movd (%0), %%mm4           \n\t"\
+        "add %2, %0                 \n\t"\
+        "punpcklbw %%mm7, %%mm0     \n\t"\
+        "punpcklbw %%mm7, %%mm1     \n\t"\
+        "punpcklbw %%mm7, %%mm2     \n\t"\
+        "punpcklbw %%mm7, %%mm3     \n\t"\
+        "punpcklbw %%mm7, %%mm4     \n\t"\
+        VOP(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, OP, ADD, MUL1, MUL2)\
+        VOP(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, OP, ADD, MUL1, MUL2)\
+        VOP(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, OP, ADD, MUL1, MUL2)\
+        VOP(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, OP, ADD, MUL1, MUL2)\
+        VOP(%%mm4, %%mm5, %%mm0, %%mm1, %%mm2, %%mm3, OP, ADD, MUL1, MUL2)\
+        VOP(%%mm5, %%mm0, %%mm1, %%mm2, %%mm3, %%mm4, OP, ADD, MUL1, MUL2)\
+        VOP(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, OP, ADD, MUL1, MUL2)\
+        VOP(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, OP, ADD, MUL1, MUL2)\
+        \
+        : "+a"(src), "+c"(dst)\
+        : "S"((x86_reg)srcStride), "r"((x86_reg)dstStride)\
+          NAMED_CONSTRAINTS_ADD(ADD,MUL1,MUL2)\
+        : "memory"\
+     );\
+     if(h==16){\
+        __asm__ volatile(\
+            VOP(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, OP, ADD, MUL1, MUL2)\
+            VOP(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, OP, ADD, MUL1, MUL2)\
+            VOP(%%mm4, %%mm5, %%mm0, %%mm1, %%mm2, %%mm3, OP, ADD, MUL1, MUL2)\
+            VOP(%%mm5, %%mm0, %%mm1, %%mm2, %%mm3, %%mm4, OP, ADD, MUL1, MUL2)\
+            VOP(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, OP, ADD, MUL1, MUL2)\
+            VOP(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, OP, ADD, MUL1, MUL2)\
+            VOP(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, OP, ADD, MUL1, MUL2)\
+            VOP(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, OP, ADD, MUL1, MUL2)\
+            \
+           : "+a"(src), "+c"(dst)\
+           : "S"((x86_reg)srcStride), "r"((x86_reg)dstStride)\
+             NAMED_CONSTRAINTS_ADD(ADD,MUL1,MUL2)\
+           : "memory"\
+        );\
+     }\
+     src += 4-(h+5)*srcStride;\
+     dst += 4-h*dstStride;\
+   }
+
+#define QPEL_CAVS(OPNAME, OP, MMX)\
+static void OPNAME ## cavs_qpel8_h_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
+{\
+    int h=8;\
+    __asm__ volatile(\
+        "pxor %%mm7, %%mm7          \n\t"\
+        "movq "MANGLE(ff_pw_5)", %%mm6\n\t"\
+        "1:                         \n\t"\
+        "movq    (%0), %%mm0        \n\t"\
+        "movq   1(%0), %%mm2        \n\t"\
+        "movq %%mm0, %%mm1          \n\t"\
+        "movq %%mm2, %%mm3          \n\t"\
+        "punpcklbw %%mm7, %%mm0     \n\t"\
+        "punpckhbw %%mm7, %%mm1     \n\t"\
+        "punpcklbw %%mm7, %%mm2     \n\t"\
+        "punpckhbw %%mm7, %%mm3     \n\t"\
+        "paddw %%mm2, %%mm0         \n\t"\
+        "paddw %%mm3, %%mm1         \n\t"\
+        "pmullw %%mm6, %%mm0        \n\t"\
+        "pmullw %%mm6, %%mm1        \n\t"\
+        "movq   -1(%0), %%mm2       \n\t"\
+        "movq    2(%0), %%mm4       \n\t"\
+        "movq %%mm2, %%mm3          \n\t"\
+        "movq %%mm4, %%mm5          \n\t"\
+        "punpcklbw %%mm7, %%mm2     \n\t"\
+        "punpckhbw %%mm7, %%mm3     \n\t"\
+        "punpcklbw %%mm7, %%mm4     \n\t"\
+        "punpckhbw %%mm7, %%mm5     \n\t"\
+        "paddw %%mm4, %%mm2         \n\t"\
+        "paddw %%mm3, %%mm5         \n\t"\
+        "psubw %%mm2, %%mm0         \n\t"\
+        "psubw %%mm5, %%mm1         \n\t"\
+        "movq "MANGLE(ff_pw_4)", %%mm5\n\t"\
+        "paddw %%mm5, %%mm0         \n\t"\
+        "paddw %%mm5, %%mm1         \n\t"\
+        "psraw $3, %%mm0            \n\t"\
+        "psraw $3, %%mm1            \n\t"\
+        "packuswb %%mm1, %%mm0      \n\t"\
+        OP(%%mm0, (%1),%%mm5, q)         \
+        "add %3, %0                 \n\t"\
+        "add %4, %1                 \n\t"\
+        "decl %2                    \n\t"\
+        " jnz 1b                    \n\t"\
+        : "+a"(src), "+c"(dst), "+m"(h)\
+        : "d"((x86_reg)srcStride), "S"((x86_reg)dstStride)\
+          NAMED_CONSTRAINTS_ADD(ff_pw_4,ff_pw_5)\
+        : "memory"\
+    );\
+}\
+\
+static inline void OPNAME ## cavs_qpel8or16_v1_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)\
+{                                                                       \
+  QPEL_CAVSVNUM(QPEL_CAVSV1,OP,ff_pw_64,ff_pw_96,ff_pw_42)      \
+}\
+\
+static inline void OPNAME ## cavs_qpel8or16_v2_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)\
+{                                                                       \
+  QPEL_CAVSVNUM(QPEL_CAVSV2,OP,ff_pw_4,ff_pw_5,ff_pw_42)        \
+}\
+\
+static inline void OPNAME ## cavs_qpel8or16_v3_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)\
+{                                                                       \
+  QPEL_CAVSVNUM(QPEL_CAVSV3,OP,ff_pw_64,ff_pw_96,ff_pw_42)      \
+}\
+\
+static void OPNAME ## cavs_qpel8_v1_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
+{                                                                       \
+    OPNAME ## cavs_qpel8or16_v1_ ## MMX(dst  , src  , dstStride, srcStride, 8);\
+}\
+static void OPNAME ## cavs_qpel16_v1_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
+{                                                                       \
+    OPNAME ## cavs_qpel8or16_v1_ ## MMX(dst  , src  , dstStride, srcStride, 16);\
+    OPNAME ## cavs_qpel8or16_v1_ ## MMX(dst+8, src+8, dstStride, srcStride, 16);\
+}\
+\
+static void OPNAME ## cavs_qpel8_v2_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
+{                                                                       \
+    OPNAME ## cavs_qpel8or16_v2_ ## MMX(dst  , src  , dstStride, srcStride, 8);\
+}\
+static void OPNAME ## cavs_qpel16_v2_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
+{                                                                       \
+    OPNAME ## cavs_qpel8or16_v2_ ## MMX(dst  , src  , dstStride, srcStride, 16);\
+    OPNAME ## cavs_qpel8or16_v2_ ## MMX(dst+8, src+8, dstStride, srcStride, 16);\
+}\
+\
+static void OPNAME ## cavs_qpel8_v3_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
+{                                                                       \
+    OPNAME ## cavs_qpel8or16_v3_ ## MMX(dst  , src  , dstStride, srcStride, 8);\
+}\
+static void OPNAME ## cavs_qpel16_v3_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
+{                                                                       \
+    OPNAME ## cavs_qpel8or16_v3_ ## MMX(dst  , src  , dstStride, srcStride, 16);\
+    OPNAME ## cavs_qpel8or16_v3_ ## MMX(dst+8, src+8, dstStride, srcStride, 16);\
+}\
+\
+static void OPNAME ## cavs_qpel16_h_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
+{                                                                       \
+    OPNAME ## cavs_qpel8_h_ ## MMX(dst  , src  , dstStride, srcStride);\
+    OPNAME ## cavs_qpel8_h_ ## MMX(dst+8, src+8, dstStride, srcStride);\
+    src += 8*srcStride;\
+    dst += 8*dstStride;\
+    OPNAME ## cavs_qpel8_h_ ## MMX(dst  , src  , dstStride, srcStride);\
+    OPNAME ## cavs_qpel8_h_ ## MMX(dst+8, src+8, dstStride, srcStride);\
+}\
+
+#define CAVS_MC(OPNAME, SIZE, MMX) \
+static void OPNAME ## cavs_qpel ## SIZE ## _mc20_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    OPNAME ## cavs_qpel ## SIZE ## _h_ ## MMX(dst, src, stride, stride);\
+}\
+\
+static void OPNAME ## cavs_qpel ## SIZE ## _mc01_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    OPNAME ## cavs_qpel ## SIZE ## _v1_ ## MMX(dst, src, stride, stride);\
+}\
+\
+static void OPNAME ## cavs_qpel ## SIZE ## _mc02_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    OPNAME ## cavs_qpel ## SIZE ## _v2_ ## MMX(dst, src, stride, stride);\
+}\
+\
+static void OPNAME ## cavs_qpel ## SIZE ## _mc03_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    OPNAME ## cavs_qpel ## SIZE ## _v3_ ## MMX(dst, src, stride, stride);\
+}\
+
+#define PUT_OP(a,b,temp, size) "mov" #size " " #a ", " #b "    \n\t"
+#define AVG_3DNOW_OP(a,b,temp, size) \
+"mov" #size " " #b ", " #temp "   \n\t"\
+"pavgusb " #temp ", " #a "        \n\t"\
+"mov" #size " " #a ", " #b "      \n\t"
+#define AVG_MMXEXT_OP(a, b, temp, size) \
+"mov" #size " " #b ", " #temp "   \n\t"\
+"pavgb " #temp ", " #a "          \n\t"\
+"mov" #size " " #a ", " #b "      \n\t"
+
+#endif /* (HAVE_MMXEXT_INLINE || HAVE_AMD3DNOW_INLINE) */
+
+#if HAVE_MMX_EXTERNAL
+static void put_cavs_qpel8_mc00_mmx(uint8_t *dst, const uint8_t *src,
+                                    ptrdiff_t stride)
+{
+    ff_put_pixels8_mmx(dst, src, stride, 8);
+}
+
+static void avg_cavs_qpel8_mc00_mmx(uint8_t *dst, const uint8_t *src,
+                                    ptrdiff_t stride)
+{
+    ff_avg_pixels8_mmx(dst, src, stride, 8);
+}
+
+static void avg_cavs_qpel8_mc00_mmxext(uint8_t *dst, const uint8_t *src,
+                                       ptrdiff_t stride)
+{
+    ff_avg_pixels8_mmxext(dst, src, stride, 8);
+}
+
+static void put_cavs_qpel16_mc00_mmx(uint8_t *dst, const uint8_t *src,
+                                     ptrdiff_t stride)
+{
+    ff_put_pixels16_mmx(dst, src, stride, 16);
+}
+
+static void avg_cavs_qpel16_mc00_mmx(uint8_t *dst, const uint8_t *src,
+                                     ptrdiff_t stride)
+{
+    ff_avg_pixels16_mmx(dst, src, stride, 16);
+}
+
+static void avg_cavs_qpel16_mc00_mmxext(uint8_t *dst, const uint8_t *src,
+                                        ptrdiff_t stride)
+{
+    ff_avg_pixels16_mmxext(dst, src, stride, 16);
+}
+
+static void put_cavs_qpel16_mc00_sse2(uint8_t *dst, const uint8_t *src,
+                                      ptrdiff_t stride)
+{
+    ff_put_pixels16_sse2(dst, src, stride, 16);
+}
+
+static void avg_cavs_qpel16_mc00_sse2(uint8_t *dst, const uint8_t *src,
+                                      ptrdiff_t stride)
+{
+    ff_avg_pixels16_sse2(dst, src, stride, 16);
+}
+#endif
+
+static av_cold void cavsdsp_init_mmx(CAVSDSPContext *c,
+                                     AVCodecContext *avctx)
+{
+#if HAVE_MMX_EXTERNAL
+    c->put_cavs_qpel_pixels_tab[0][0] = put_cavs_qpel16_mc00_mmx;
+    c->put_cavs_qpel_pixels_tab[1][0] = put_cavs_qpel8_mc00_mmx;
+    c->avg_cavs_qpel_pixels_tab[0][0] = avg_cavs_qpel16_mc00_mmx;
+    c->avg_cavs_qpel_pixels_tab[1][0] = avg_cavs_qpel8_mc00_mmx;
+
+    c->cavs_idct8_add = cavs_idct8_add_mmx;
+    c->idct_perm      = FF_IDCT_PERM_TRANSPOSE;
+#endif /* HAVE_MMX_EXTERNAL */
+}
+
+#define DSPFUNC(PFX, IDX, NUM, EXT)                                                       \
+    c->PFX ## _cavs_qpel_pixels_tab[IDX][ 2] = PFX ## _cavs_qpel ## NUM ## _mc20_ ## EXT; \
+    c->PFX ## _cavs_qpel_pixels_tab[IDX][ 4] = PFX ## _cavs_qpel ## NUM ## _mc01_ ## EXT; \
+    c->PFX ## _cavs_qpel_pixels_tab[IDX][ 8] = PFX ## _cavs_qpel ## NUM ## _mc02_ ## EXT; \
+    c->PFX ## _cavs_qpel_pixels_tab[IDX][12] = PFX ## _cavs_qpel ## NUM ## _mc03_ ## EXT; \
+
+#if HAVE_MMXEXT_INLINE
+QPEL_CAVS(put_,        PUT_OP, mmxext)
+QPEL_CAVS(avg_, AVG_MMXEXT_OP, mmxext)
+
+CAVS_MC(put_,  8, mmxext)
+CAVS_MC(put_, 16, mmxext)
+CAVS_MC(avg_,  8, mmxext)
+CAVS_MC(avg_, 16, mmxext)
+#endif /* HAVE_MMXEXT_INLINE */
+
+#if HAVE_AMD3DNOW_INLINE
+QPEL_CAVS(put_,       PUT_OP, 3dnow)
+QPEL_CAVS(avg_, AVG_3DNOW_OP, 3dnow)
+
+CAVS_MC(put_, 8, 3dnow)
+CAVS_MC(put_, 16,3dnow)
+CAVS_MC(avg_, 8, 3dnow)
+CAVS_MC(avg_, 16,3dnow)
+
+static av_cold void cavsdsp_init_3dnow(CAVSDSPContext *c,
+                                       AVCodecContext *avctx)
+{
+    DSPFUNC(put, 0, 16, 3dnow);
+    DSPFUNC(put, 1,  8, 3dnow);
+    DSPFUNC(avg, 0, 16, 3dnow);
+    DSPFUNC(avg, 1,  8, 3dnow);
+}
+#endif /* HAVE_AMD3DNOW_INLINE */
+
+av_cold void ff_cavsdsp_init_x86(CAVSDSPContext *c, AVCodecContext *avctx)
+{
+    av_unused int cpu_flags = av_get_cpu_flags();
+
+    if (X86_MMX(cpu_flags))
+        cavsdsp_init_mmx(c, avctx);
+
+#if HAVE_AMD3DNOW_INLINE
+    if (INLINE_AMD3DNOW(cpu_flags))
+        cavsdsp_init_3dnow(c, avctx);
+#endif /* HAVE_AMD3DNOW_INLINE */
+#if HAVE_MMXEXT_INLINE
+    if (INLINE_MMXEXT(cpu_flags)) {
+        DSPFUNC(put, 0, 16, mmxext);
+        DSPFUNC(put, 1,  8, mmxext);
+        DSPFUNC(avg, 0, 16, mmxext);
+        DSPFUNC(avg, 1,  8, mmxext);
+    }
+#endif
+#if HAVE_MMX_EXTERNAL
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        c->avg_cavs_qpel_pixels_tab[0][0] = avg_cavs_qpel16_mc00_mmxext;
+        c->avg_cavs_qpel_pixels_tab[1][0] = avg_cavs_qpel8_mc00_mmxext;
+    }
+#endif
+#if HAVE_SSE2_EXTERNAL
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->put_cavs_qpel_pixels_tab[0][0] = put_cavs_qpel16_mc00_sse2;
+        c->avg_cavs_qpel_pixels_tab[0][0] = avg_cavs_qpel16_mc00_sse2;
+
+        c->cavs_idct8_add = cavs_idct8_add_sse2;
+        c->idct_perm      = FF_IDCT_PERM_TRANSPOSE;
+    }
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/celt_pvq_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/celt_pvq_init.c
new file mode 100644
index 000000000..13724c356
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/celt_pvq_init.c
@@ -0,0 +1,43 @@
+/*
+ * Opus encoder assembly optimizations
+ * Copyright (C) 2017 Ivan Kalvachev <ikalvachev@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/opus_pvq.h"
+
+extern float ff_pvq_search_approx_sse2(float *X, int *y, int K, int N);
+extern float ff_pvq_search_approx_sse4(float *X, int *y, int K, int N);
+extern float ff_pvq_search_exact_avx  (float *X, int *y, int K, int N);
+
+av_cold void ff_celt_pvq_init_x86(CeltPVQ *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE2(cpu_flags))
+        s->pvq_search = ff_pvq_search_approx_sse2;
+
+    if (EXTERNAL_SSE4(cpu_flags))
+        s->pvq_search = ff_pvq_search_approx_sse4;
+
+    if (EXTERNAL_AVX_FAST(cpu_flags))
+        s->pvq_search = ff_pvq_search_exact_avx;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/celt_pvq_search.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/celt_pvq_search.asm
new file mode 100644
index 000000000..5c1e6d617
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/celt_pvq_search.asm
@@ -0,0 +1,385 @@
+;******************************************************************************
+;* SIMD optimized Opus encoder DSP function
+;*
+;* Copyright (C) 2017 Ivan Kalvachev <ikalvachev@gmail.com>
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "config.asm"
+%include "libavutil/x86/x86util.asm"
+
+%ifdef __NASM_VER__
+%use "smartalign"
+ALIGNMODE p6
+%endif
+
+SECTION_RODATA 64
+
+const_float_abs_mask:   times 8 dd 0x7fffffff
+const_align_abs_edge:   times 8 dd 0
+
+const_float_0_5:        times 8 dd 0.5
+const_float_1:          times 8 dd 1.0
+const_float_sign_mask:  times 8 dd 0x80000000
+
+const_int32_offsets:
+                        %rep 8
+                                dd $-const_int32_offsets
+                        %endrep
+SECTION .text
+
+;
+;   Setup High Register to be used
+;   for holding memory constants
+;
+; %1 - the register to be used, assmues it is >= mm8
+; %2 - name of the constant.
+;
+; Subsequent opcodes are going to use the constant in the form
+; "addps m0, mm_const_name" and it would be turned into:
+; "addps m0, [const_name]" on 32 bit arch or
+; "addps m0, m8" on 64 bit arch
+%macro SET_HI_REG_MM_CONSTANT 3 ; movop, reg, const_name
+%if num_mmregs > 8
+    %define  mm_%3   %2
+    %{1}        %2, [%3]    ; movaps m8, [const_name]
+%else
+    %define  mm_%3  [%3]
+%endif
+%endmacro
+
+;
+;   Set Position Independent Code
+;       Base address of a constant
+; %1 - the register to be used, if PIC is set
+; %2 - name of the constant.
+;
+; Subsequent opcode are going to use the base address in the form
+; "movaps m0, [pic_base_constant_name+r4]" and it would be turned into
+; "movaps m0, [r5 + r4]" if PIC is enabled
+; "movaps m0, [constant_name + r4]" if texrel are used
+%macro SET_PIC_BASE 3; reg, const_label
+%ifdef PIC
+    %{1}     %2, [%3]      ; lea r5, [rip+const]
+    %define  pic_base_%3 %2
+%else
+    %define  pic_base_%3 %3
+%endif
+%endmacro
+
+%macro PULSES_SEARCH 1
+; m6 Syy_norm
+; m7 Sxy_norm
+    addps          m6, mm_const_float_0_5   ; Syy_norm += 1.0/2
+    pxor           m1, m1                   ; max_idx
+    xorps          m3, m3                   ; p_max
+    xor           r4d, r4d
+align 16
+%%distortion_search:
+    movd          xm2, dword r4d    ; movd zero extends
+%ifidn %1,add
+    movaps         m4, [tmpY + r4]  ; y[i]
+    movaps         m5, [tmpX + r4]  ; X[i]
+
+  %if USE_APPROXIMATION == 1
+    xorps          m0, m0
+    cmpps          m0, m0, m5, 4    ; m0 = (X[i] != 0.0)
+  %endif
+
+    addps          m4, m6           ; m4 = Syy_new = y[i] + Syy_norm
+    addps          m5, m7           ; m5 = Sxy_new = X[i] + Sxy_norm
+
+  %if USE_APPROXIMATION == 1
+    andps          m5, m0           ; if(X[i] == 0) Sxy_new = 0; Prevent aproximation error from setting pulses in array padding.
+  %endif
+
+%else
+    movaps         m5, [tmpY + r4]      ; m5 = y[i]
+
+    xorps          m0, m0               ; m0 = 0;
+    cmpps          m0, m0, m5, 1        ; m0 = (0<y)
+
+    subps          m4, m6, m5           ; m4 = Syy_new = Syy_norm - y[i]
+    subps          m5, m7, [tmpX + r4]  ; m5 = Sxy_new = Sxy_norm - X[i]
+    andps          m5, m0               ; (0<y)?m5:0
+%endif
+
+%if USE_APPROXIMATION == 1
+    rsqrtps        m4, m4
+    mulps          m5, m4           ; m5 = p = Sxy_new*approx(1/sqrt(Syy) )
+%else
+    mulps          m5, m5
+    divps          m5, m4           ; m5 = p = Sxy_new*Sxy_new/Syy
+%endif
+    VPBROADCASTD   m2, xm2          ; m2=i (all lanes get same values, we add the offset-per-lane, later)
+
+    cmpps          m0, m3, m5, 1    ; m0 = (m3 < m5) ; (p_max < p) ; (p > p_max)
+    maxps          m3, m5           ; m3=max(p_max,p)
+                                    ; maxps here is faster than blendvps, despite blend having lower latency.
+
+    pand           m2, m0           ; This version seems faster than sse41 pblendvb
+    pmaxsw         m1, m2           ; SSE2 signed word, so it would work for N < 32768/4
+
+    add           r4d, mmsize
+    cmp           r4d, Nd
+    jb   %%distortion_search
+
+    por            m1, mm_const_int32_offsets  ; max_idx offsets per individual lane (skipped in the inner loop)
+    movdqa         m4, m1                      ; needed for the aligned y[max_idx]+=1; processing
+
+%if mmsize >= 32
+; Merge parallel maximums round 8 (4 vs 4)
+
+    vextractf128  xm5, ym3, 1       ; xmm5 = ymm3[1x128] = ymm3[255..128b]
+    cmpps         xm0, xm3, xm5, 1  ; m0 = (m3 < m5) = ( p[0x128] < p[1x128] )
+
+    vextracti128  xm2, ym1, 1       ; xmm2 = ymm1[1x128] = ymm1[255..128b]
+    BLENDVPS      xm3, xm5, xm0     ; max_idx = m0 ? max_idx[1x128] : max_idx[0x128]
+    PBLENDVB      xm1, xm2, xm0     ; p       = m0 ? p[1x128]       : p[0x128]
+%endif
+
+; Merge parallel maximums round 4 (2 vs 2)
+                                    ; m3=p[3210]
+    movhlps       xm5, xm3          ; m5=p[xx32]
+    cmpps         xm0, xm3, xm5, 1  ; m0 = (m3 < m5) = ( p[1,0] < p[3,2] )
+
+    pshufd        xm2, xm1, q3232
+    BLENDVPS      xm3, xm5, xm0     ; max_idx = m0 ? max_idx[3,2] : max_idx[1,0]
+    PBLENDVB      xm1, xm2, xm0     ; p       = m0 ? p[3,2]       : p[1,0]
+
+; Merge parallel maximums final round (1 vs 1)
+    shufps        xm0, xm3, xm3, q1111  ; m0 = m3[1] = p[1]
+    cmpss         xm0, xm3, 5           ; m0 = !(m0 >= m3) = !( p[1] >= p[0] )
+
+    pshufd        xm2, xm1, q1111
+    PBLENDVB      xm1, xm2, xm0
+
+    movd    dword r4d, xm1          ; zero extends to the rest of r4q
+
+    VBROADCASTSS   m3, [tmpX + r4]
+    %{1}ps         m7, m3           ; Sxy += X[max_idx]
+
+    VBROADCASTSS   m5, [tmpY + r4]
+    %{1}ps         m6, m5           ; Syy += Y[max_idx]
+
+    ; We have to update a single element in Y[i]
+    ; However writing 4 bytes and then doing 16 byte load in the inner loop
+    ; could cause a stall due to breaking write forwarding.
+    VPBROADCASTD   m1, xm1
+    pcmpeqd        m1, m1, m4           ; exactly 1 element matches max_idx and this finds it
+
+    and           r4d, ~(mmsize-1)      ; align address down, so the value pointed by max_idx is inside a mmsize load
+    movaps         m5, [tmpY + r4]      ; m5 = Y[y3...ym...y0]
+    andps          m1, mm_const_float_1 ; m1 =  [ 0...1.0...0]
+    %{1}ps         m5, m1               ; m5 = Y[y3...ym...y0] +/- [0...1.0...0]
+    movaps [tmpY + r4], m5              ; Y[max_idx] +-= 1.0;
+%endmacro
+
+;
+; We need one more register for
+; PIC relative addressing. Use this
+; to count it in cglobal
+;
+%ifdef PIC
+  %define num_pic_regs 1
+%else
+  %define num_pic_regs 0
+%endif
+
+;
+; Pyramid Vector Quantization Search implementation
+;
+; float * inX   - Unaligned (SIMD) access, it will be overread,
+;                 but extra data is masked away.
+; int32 * outY  - Should be aligned and padded buffer.
+;                 It is used as temp buffer.
+; uint32 K      - Number of pulses to have after quantizations.
+; uint32 N      - Number of vector elements. Must be 0 < N < 256
+;
+%macro PVQ_FAST_SEARCH 1
+cglobal pvq_search%1, 4, 5+num_pic_regs, 11, 256*4, inX, outY, K, N
+%define tmpX rsp
+%define tmpY outYq
+
+    movaps     m0, [const_float_abs_mask]
+    shl        Nd, 2    ; N *= sizeof(float); also 32 bit operation zeroes the high 32 bits in 64 bit mode.
+    mov       r4d, Nd
+
+    neg       r4d
+    and       r4d, mmsize-1
+
+    SET_PIC_BASE lea, r5, const_align_abs_edge  ; rip+const
+    movups     m2, [pic_base_const_align_abs_edge + r4 - mmsize]
+
+    add        Nd, r4d              ; N = align(N, mmsize)
+
+    lea       r4d, [Nd - mmsize]    ; N is rounded up (aligned up) to mmsize, so r4 can't become negative here, unless N=0.
+    movups     m1, [inXq + r4]
+    andps      m1, m2
+    movaps  [tmpX + r4], m1         ; Sx = abs( X[N-1] )
+
+align 16
+%%loop_abs_sum:
+    sub       r4d, mmsize
+    jc   %%end_loop_abs_sum
+
+    movups     m2, [inXq + r4]
+    andps      m2, m0
+
+    movaps  [tmpX + r4], m2 ; tmpX[i]=abs(X[i])
+    addps      m1, m2       ; Sx += abs(X[i])
+    jmp  %%loop_abs_sum
+
+align 16
+%%end_loop_abs_sum:
+
+    HSUMPS     m1, m2       ; m1  = Sx
+
+    xorps      m0, m0
+    comiss    xm0, xm1      ;
+    jz   %%zero_input       ; if (Sx==0) goto zero_input
+
+    cvtsi2ss  xm0, dword Kd ; m0 = K
+%if USE_APPROXIMATION == 1
+    rcpss     xm1, xm1      ; m1 = approx(1/Sx)
+    mulss     xm0, xm1      ; m0 = K*(1/Sx)
+%else
+    divss     xm0, xm1      ; b = K/Sx
+                            ; b = K/max_x
+%endif
+
+    VBROADCASTSS  m0, xm0
+
+    lea       r4d, [Nd - mmsize]
+    pxor       m5, m5             ; Sy    ( Sum of abs( y[i]) )
+    xorps      m6, m6             ; Syy   ( Sum of y[i]*y[i]  )
+    xorps      m7, m7             ; Sxy   ( Sum of X[i]*y[i]  )
+align 16
+%%loop_guess:
+    movaps     m1, [tmpX + r4]    ; m1   = X[i]
+    mulps      m2, m0, m1         ; m2   = res*X[i]
+    cvtps2dq   m2, m2             ; yt   = (int)lrintf( res*X[i] )
+    paddd      m5, m2             ; Sy  += yt
+    cvtdq2ps   m2, m2             ; yt   = (float)yt
+    mulps      m1, m2             ; m1   = X[i]*yt
+    movaps  [tmpY + r4], m2       ; y[i] = m2
+    addps      m7, m1             ; Sxy += m1;
+    mulps      m2, m2             ; m2   = yt*yt
+    addps      m6, m2             ; Syy += m2
+
+    sub       r4d, mmsize
+    jnc  %%loop_guess
+
+    HSUMPS     m6, m1       ; Syy_norm
+    HADDD      m5, m4       ; pulses
+
+    movd  dword r4d, xm5    ; zero extends to the rest of r4q
+
+    sub        Kd, r4d      ; K -= pulses , also 32 bit operation zeroes high 32 bit in 64 bit mode.
+    jz   %%finish           ; K - pulses == 0
+
+    SET_HI_REG_MM_CONSTANT movaps,  m8, const_float_0_5
+    SET_HI_REG_MM_CONSTANT movaps,  m9, const_float_1
+    SET_HI_REG_MM_CONSTANT movdqa, m10, const_int32_offsets
+    ; Use Syy/2 in distortion parameter calculations.
+    ; Saves pre and post-caclulation to correct Y[] values.
+    ; Same precision, since float mantisa is normalized.
+    ; The SQRT approximation does differ.
+    HSUMPS     m7, m0         ; Sxy_norm
+    mulps      m6, mm_const_float_0_5
+
+    jc   %%remove_pulses_loop   ; K - pulses < 0
+
+align 16                        ; K - pulses > 0
+%%add_pulses_loop:
+
+    PULSES_SEARCH add   ; m6 Syy_norm ; m7 Sxy_norm
+
+    sub        Kd, 1
+    jnz  %%add_pulses_loop
+
+    addps      m6, m6 ; Syy*=2
+
+    jmp  %%finish
+
+align 16
+%%remove_pulses_loop:
+
+    PULSES_SEARCH sub   ; m6 Syy_norm ; m7 Sxy_norm
+
+    add        Kd, 1
+    jnz  %%remove_pulses_loop
+
+    addps      m6, m6 ; Syy*=2
+
+align 16
+%%finish:
+    lea       r4d, [Nd - mmsize]
+    movaps     m2, [const_float_sign_mask]
+
+align 16
+%%restore_sign_loop:
+    movaps     m0, [tmpY + r4]    ; m0 = Y[i]
+    movups     m1, [inXq + r4]    ; m1 = X[i]
+    andps      m1, m2             ; m1 = sign(X[i])
+    orps       m0, m1             ; m0 = Y[i]*sign
+    cvtps2dq   m3, m0             ; m3 = (int)m0
+    movaps  [outYq + r4], m3
+
+    sub       r4d, mmsize
+    jnc  %%restore_sign_loop
+%%return:
+
+%if ARCH_X86_64 == 0    ; sbrdsp
+    movss     r0m, xm6  ; return (float)Syy_norm
+    fld dword r0m
+%else
+    movaps     m0, m6   ; return (float)Syy_norm
+%endif
+
+    RET
+
+align 16
+%%zero_input:
+    lea       r4d, [Nd - mmsize]
+    xorps      m0, m0
+%%zero_loop:
+    movaps  [outYq + r4], m0
+    sub       r4d, mmsize
+    jnc  %%zero_loop
+
+    movaps     m6, [const_float_1]
+    jmp  %%return
+%endmacro
+
+; if 1, use a float op that give half precision but execute for around 3 cycles.
+; On Skylake & Ryzen the division is much faster (around 11c/3),
+; that makes the full precision code about 2% slower.
+; Opus also does use rsqrt approximation in their intrinsics code.
+%define USE_APPROXIMATION   1
+
+INIT_XMM sse2
+PVQ_FAST_SEARCH _approx
+
+INIT_XMM sse4
+PVQ_FAST_SEARCH _approx
+
+%define USE_APPROXIMATION   0
+
+INIT_XMM avx
+PVQ_FAST_SEARCH _exact
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/constants.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/constants.c
new file mode 100644
index 000000000..4bfb78cc3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/constants.c
@@ -0,0 +1,94 @@
+/*
+ * MMX/SSE/AVX constants used across x86 dsp optimizations.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/mem.h"
+#include "libavutil/x86/asm.h" // for xmm_reg
+#include "constants.h"
+
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pw_1)    = { 0x0001000100010001ULL, 0x0001000100010001ULL,
+                                                    0x0001000100010001ULL, 0x0001000100010001ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pw_2)    = { 0x0002000200020002ULL, 0x0002000200020002ULL,
+                                                    0x0002000200020002ULL, 0x0002000200020002ULL };
+DECLARE_ASM_ALIGNED(16, const xmm_reg,  ff_pw_3)    = { 0x0003000300030003ULL, 0x0003000300030003ULL };
+DECLARE_ASM_ALIGNED(32, const ymm_reg,  ff_pw_4)    = { 0x0004000400040004ULL, 0x0004000400040004ULL,
+                                                    0x0004000400040004ULL, 0x0004000400040004ULL };
+DECLARE_ASM_ALIGNED(16, const xmm_reg,  ff_pw_5)    = { 0x0005000500050005ULL, 0x0005000500050005ULL };
+DECLARE_ALIGNED(16, const xmm_reg,  ff_pw_8)    = { 0x0008000800080008ULL, 0x0008000800080008ULL };
+DECLARE_ASM_ALIGNED(16, const xmm_reg,  ff_pw_9)    = { 0x0009000900090009ULL, 0x0009000900090009ULL };
+DECLARE_ALIGNED(8,  const uint64_t, ff_pw_15)   =   0x000F000F000F000FULL;
+DECLARE_ALIGNED(16, const xmm_reg,  ff_pw_16)   = { 0x0010001000100010ULL, 0x0010001000100010ULL };
+DECLARE_ALIGNED(16, const xmm_reg,  ff_pw_17)   = { 0x0011001100110011ULL, 0x0011001100110011ULL };
+DECLARE_ASM_ALIGNED(16, const xmm_reg,  ff_pw_18)   = { 0x0012001200120012ULL, 0x0012001200120012ULL };
+DECLARE_ALIGNED(16, const xmm_reg,  ff_pw_20)   = { 0x0014001400140014ULL, 0x0014001400140014ULL };
+DECLARE_ALIGNED(16, const xmm_reg,  ff_pw_32)   = { 0x0020002000200020ULL, 0x0020002000200020ULL };
+DECLARE_ASM_ALIGNED(8,  const uint64_t, ff_pw_42)   =   0x002A002A002A002AULL;
+DECLARE_ASM_ALIGNED(8,  const uint64_t, ff_pw_53)   =   0x0035003500350035ULL;
+DECLARE_ASM_ALIGNED(16, const xmm_reg,  ff_pw_64)   = { 0x0040004000400040ULL, 0x0040004000400040ULL };
+DECLARE_ASM_ALIGNED(8,  const uint64_t, ff_pw_96)   =   0x0060006000600060ULL;
+DECLARE_ASM_ALIGNED(8,  const uint64_t, ff_pw_128)  =   0x0080008000800080ULL;
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pw_255)  = { 0x00ff00ff00ff00ffULL, 0x00ff00ff00ff00ffULL,
+                                                    0x00ff00ff00ff00ffULL, 0x00ff00ff00ff00ffULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pw_256)  = { 0x0100010001000100ULL, 0x0100010001000100ULL,
+                                                    0x0100010001000100ULL, 0x0100010001000100ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pw_512)  = { 0x0200020002000200ULL, 0x0200020002000200ULL,
+                                                    0x0200020002000200ULL, 0x0200020002000200ULL };
+DECLARE_ALIGNED(16, const xmm_reg,  ff_pw_1019) = { 0x03FB03FB03FB03FBULL, 0x03FB03FB03FB03FBULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pw_1023) = { 0x03ff03ff03ff03ffULL, 0x03ff03ff03ff03ffULL,
+                                                    0x03ff03ff03ff03ffULL, 0x03ff03ff03ff03ffULL};
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pw_1024) = { 0x0400040004000400ULL, 0x0400040004000400ULL,
+                                                    0x0400040004000400ULL, 0x0400040004000400ULL};
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pw_2048) = { 0x0800080008000800ULL, 0x0800080008000800ULL,
+                                                    0x0800080008000800ULL, 0x0800080008000800ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pw_4095) = { 0x0fff0fff0fff0fffULL, 0x0fff0fff0fff0fffULL,
+                                                    0x0fff0fff0fff0fffULL, 0x0fff0fff0fff0fffULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pw_4096) = { 0x1000100010001000ULL, 0x1000100010001000ULL,
+                                                    0x1000100010001000ULL, 0x1000100010001000ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pw_8192) = { 0x2000200020002000ULL, 0x2000200020002000ULL,
+                                                    0x2000200020002000ULL, 0x2000200020002000ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pw_m1)   = { 0xFFFFFFFFFFFFFFFFULL, 0xFFFFFFFFFFFFFFFFULL,
+                                                    0xFFFFFFFFFFFFFFFFULL, 0xFFFFFFFFFFFFFFFFULL };
+
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pb_0)    = { 0x0000000000000000ULL, 0x0000000000000000ULL,
+                                                    0x0000000000000000ULL, 0x0000000000000000ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pb_1)    = { 0x0101010101010101ULL, 0x0101010101010101ULL,
+                                                    0x0101010101010101ULL, 0x0101010101010101ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pb_2)    = { 0x0202020202020202ULL, 0x0202020202020202ULL,
+                                                    0x0202020202020202ULL, 0x0202020202020202ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pb_3)    = { 0x0303030303030303ULL, 0x0303030303030303ULL,
+                                                    0x0303030303030303ULL, 0x0303030303030303ULL };
+DECLARE_ALIGNED(32, const xmm_reg,  ff_pb_15)   = { 0x0F0F0F0F0F0F0F0FULL, 0x0F0F0F0F0F0F0F0FULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pb_80)   = { 0x8080808080808080ULL, 0x8080808080808080ULL,
+                                                    0x8080808080808080ULL, 0x8080808080808080ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pb_FE)   = { 0xFEFEFEFEFEFEFEFEULL, 0xFEFEFEFEFEFEFEFEULL,
+                                                    0xFEFEFEFEFEFEFEFEULL, 0xFEFEFEFEFEFEFEFEULL };
+DECLARE_ALIGNED(8,  const uint64_t, ff_pb_FC)   =   0xFCFCFCFCFCFCFCFCULL;
+
+DECLARE_ALIGNED(16, const xmm_reg,  ff_ps_neg)  = { 0x8000000080000000ULL, 0x8000000080000000ULL };
+
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pd_1)    = { 0x0000000100000001ULL, 0x0000000100000001ULL,
+                                                    0x0000000100000001ULL, 0x0000000100000001ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pd_16)   = { 0x0000001000000010ULL, 0x0000001000000010ULL,
+                                                    0x0000001000000010ULL, 0x0000001000000010ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pd_32)   = { 0x0000002000000020ULL, 0x0000002000000020ULL,
+                                                    0x0000002000000020ULL, 0x0000002000000020ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pd_8192) = { 0x0000200000002000ULL, 0x0000200000002000ULL,
+                                                    0x0000200000002000ULL, 0x0000200000002000ULL };
+DECLARE_ALIGNED(32, const ymm_reg,  ff_pd_65535)= { 0x0000ffff0000ffffULL, 0x0000ffff0000ffffULL,
+                                                    0x0000ffff0000ffffULL, 0x0000ffff0000ffffULL };
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/constants.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/constants.h
new file mode 100644
index 000000000..85da38b7b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/constants.h
@@ -0,0 +1,72 @@
+/*
+ * MMX/SSE constants used across x86 dsp optimizations.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_CONSTANTS_H
+#define AVCODEC_X86_CONSTANTS_H
+
+#include <stdint.h>
+
+#include "libavutil/x86/asm.h"
+
+extern const ymm_reg  ff_pw_1;
+extern const ymm_reg  ff_pw_2;
+extern const xmm_reg  ff_pw_3;
+extern const ymm_reg  ff_pw_4;
+extern const xmm_reg  ff_pw_5;
+extern const xmm_reg  ff_pw_8;
+extern const xmm_reg  ff_pw_9;
+extern const uint64_t ff_pw_15;
+extern const xmm_reg  ff_pw_16;
+extern const xmm_reg  ff_pw_18;
+extern const xmm_reg  ff_pw_20;
+extern const xmm_reg  ff_pw_32;
+extern const uint64_t ff_pw_42;
+extern const uint64_t ff_pw_53;
+extern const xmm_reg  ff_pw_64;
+extern const uint64_t ff_pw_96;
+extern const uint64_t ff_pw_128;
+extern const ymm_reg  ff_pw_255;
+extern const ymm_reg  ff_pw_256;
+extern const ymm_reg  ff_pw_512;
+extern const ymm_reg  ff_pw_1023;
+extern const ymm_reg  ff_pw_1024;
+extern const ymm_reg  ff_pw_2048;
+extern const ymm_reg  ff_pw_4095;
+extern const ymm_reg  ff_pw_4096;
+extern const ymm_reg  ff_pw_8192;
+extern const ymm_reg  ff_pw_m1;
+
+extern const ymm_reg  ff_pb_0;
+extern const ymm_reg  ff_pb_1;
+extern const ymm_reg  ff_pb_2;
+extern const ymm_reg  ff_pb_3;
+extern const ymm_reg  ff_pb_80;
+extern const ymm_reg  ff_pb_FE;
+extern const uint64_t ff_pb_FC;
+
+extern const xmm_reg  ff_ps_neg;
+
+extern const ymm_reg  ff_pd_1;
+extern const ymm_reg  ff_pd_16;
+extern const ymm_reg  ff_pd_32;
+extern const ymm_reg  ff_pd_8192;
+extern const ymm_reg  ff_pd_65535;
+
+#endif /* AVCODEC_X86_CONSTANTS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/dcadsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/dcadsp_init.c
new file mode 100644
index 000000000..fc10fb8bc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/dcadsp_init.c
@@ -0,0 +1,52 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/dcadsp.h"
+
+#define LFE_FIR_FLOAT_FUNC(opt)                                               \
+void ff_lfe_fir0_float_##opt(float *pcm_samples, int32_t *lfe_samples,         \
+                             const float *filter_coeff, ptrdiff_t npcmblocks); \
+void ff_lfe_fir1_float_##opt(float *pcm_samples, int32_t *lfe_samples,         \
+                             const float *filter_coeff, ptrdiff_t npcmblocks);
+
+LFE_FIR_FLOAT_FUNC(sse)
+LFE_FIR_FLOAT_FUNC(sse2)
+LFE_FIR_FLOAT_FUNC(sse3)
+LFE_FIR_FLOAT_FUNC(avx)
+LFE_FIR_FLOAT_FUNC(fma3)
+
+av_cold void ff_dcadsp_init_x86(DCADSPContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (ARCH_X86_32 && EXTERNAL_SSE(cpu_flags))
+        s->lfe_fir_float[0] = ff_lfe_fir0_float_sse;
+    if (EXTERNAL_SSE2(cpu_flags))
+        s->lfe_fir_float[0] = ff_lfe_fir0_float_sse2;
+    if (EXTERNAL_SSE3(cpu_flags))
+        s->lfe_fir_float[1] = ff_lfe_fir1_float_sse3;
+    if (EXTERNAL_AVX(cpu_flags)) {
+        s->lfe_fir_float[0] = ff_lfe_fir0_float_avx;
+        s->lfe_fir_float[1] = ff_lfe_fir1_float_avx;
+    }
+    if (EXTERNAL_FMA3(cpu_flags))
+        s->lfe_fir_float[0] = ff_lfe_fir0_float_fma3;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/dct_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/dct_init.c
new file mode 100644
index 000000000..c31ef9223
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/dct_init.c
@@ -0,0 +1,41 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/dct.h"
+
+void ff_dct32_float_sse(FFTSample *out, const FFTSample *in);
+void ff_dct32_float_sse2(FFTSample *out, const FFTSample *in);
+void ff_dct32_float_avx(FFTSample *out, const FFTSample *in);
+
+av_cold void ff_dct_init_x86(DCTContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+#if ARCH_X86_32
+    if (EXTERNAL_SSE(cpu_flags))
+        s->dct32 = ff_dct32_float_sse;
+#endif
+    if (EXTERNAL_SSE2(cpu_flags))
+        s->dct32 = ff_dct32_float_sse2;
+    if (EXTERNAL_AVX_FAST(cpu_flags))
+        s->dct32 = ff_dct32_float_avx;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/dirac_dwt_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/dirac_dwt_init.c
new file mode 100644
index 000000000..49a6380ad
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/dirac_dwt_init.c
@@ -0,0 +1,229 @@
+/*
+ * x86 optimized discrete wavelet transform
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2010 David Conrad
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/dirac_dwt.h"
+
+#define COMPOSE_VERTICAL(ext, align) \
+void ff_vertical_compose53iL0##ext(int16_t *b0, int16_t *b1, int16_t *b2, int width); \
+void ff_vertical_compose_dirac53iH0##ext(int16_t *b0, int16_t *b1, int16_t *b2, int width); \
+void ff_vertical_compose_dd137iL0##ext(int16_t *b0, int16_t *b1, int16_t *b2, int16_t *b3, int16_t *b4, int width); \
+void ff_vertical_compose_dd97iH0##ext(int16_t *b0, int16_t *b1, int16_t *b2, int16_t *b3, int16_t *b4, int width); \
+void ff_vertical_compose_haar##ext(int16_t *b0, int16_t *b1, int width); \
+void ff_horizontal_compose_haar0i##ext(int16_t *b, int16_t *tmp, int w);\
+void ff_horizontal_compose_haar1i##ext(int16_t *b, int16_t *tmp, int w);\
+\
+static void vertical_compose53iL0##ext(uint8_t *_b0, uint8_t *_b1, uint8_t *_b2, int width) \
+{ \
+    int i, width_align = width&~(align-1); \
+    int16_t *b0 = (int16_t *)_b0; \
+    int16_t *b1 = (int16_t *)_b1; \
+    int16_t *b2 = (int16_t *)_b2; \
+\
+    for(i=width_align; i<width; i++) \
+        b1[i] = COMPOSE_53iL0(b0[i], b1[i], b2[i]); \
+\
+    ff_vertical_compose53iL0##ext(b0, b1, b2, width_align); \
+} \
+\
+static void vertical_compose_dirac53iH0##ext(uint8_t *_b0, uint8_t *_b1, uint8_t *_b2, int width) \
+{ \
+    int i, width_align = width&~(align-1); \
+    int16_t *b0 = (int16_t *)_b0; \
+    int16_t *b1 = (int16_t *)_b1; \
+    int16_t *b2 = (int16_t *)_b2; \
+\
+    for(i=width_align; i<width; i++) \
+        b1[i] = COMPOSE_DIRAC53iH0(b0[i], b1[i], b2[i]); \
+\
+    ff_vertical_compose_dirac53iH0##ext(b0, b1, b2, width_align); \
+} \
+\
+static void vertical_compose_dd137iL0##ext(uint8_t *_b0, uint8_t *_b1, uint8_t *_b2, \
+                                           uint8_t *_b3, uint8_t *_b4, int width) \
+{ \
+    int i, width_align = width&~(align-1); \
+    int16_t *b0 = (int16_t *)_b0; \
+    int16_t *b1 = (int16_t *)_b1; \
+    int16_t *b2 = (int16_t *)_b2; \
+    int16_t *b3 = (int16_t *)_b3; \
+    int16_t *b4 = (int16_t *)_b4; \
+\
+    for(i=width_align; i<width; i++) \
+        b2[i] = COMPOSE_DD137iL0(b0[i], b1[i], b2[i], b3[i], b4[i]); \
+\
+    ff_vertical_compose_dd137iL0##ext(b0, b1, b2, b3, b4, width_align); \
+} \
+\
+static void vertical_compose_dd97iH0##ext(uint8_t *_b0, uint8_t *_b1, uint8_t *_b2, \
+                                          uint8_t *_b3, uint8_t *_b4, int width) \
+{ \
+    int i, width_align = width&~(align-1); \
+    int16_t *b0 = (int16_t *)_b0; \
+    int16_t *b1 = (int16_t *)_b1; \
+    int16_t *b2 = (int16_t *)_b2; \
+    int16_t *b3 = (int16_t *)_b3; \
+    int16_t *b4 = (int16_t *)_b4; \
+\
+    for(i=width_align; i<width; i++) \
+        b2[i] = COMPOSE_DD97iH0(b0[i], b1[i], b2[i], b3[i], b4[i]); \
+\
+    ff_vertical_compose_dd97iH0##ext(b0, b1, b2, b3, b4, width_align); \
+} \
+static void vertical_compose_haar##ext(uint8_t *_b0, uint8_t *_b1, int width) \
+{ \
+    int i, width_align = width&~(align-1); \
+    int16_t *b0 = (int16_t *)_b0; \
+    int16_t *b1 = (int16_t *)_b1; \
+\
+    for(i=width_align; i<width; i++) { \
+        b0[i] = COMPOSE_HAARiL0(b0[i], b1[i]); \
+        b1[i] = COMPOSE_HAARiH0(b1[i], b0[i]); \
+    } \
+\
+    ff_vertical_compose_haar##ext(b0, b1, width_align); \
+} \
+static void horizontal_compose_haar0i##ext(uint8_t *_b, uint8_t *_tmp, int w)\
+{\
+    int w2= w>>1;\
+    int x= w2 - (w2&(align-1));\
+    int16_t *b = (int16_t *)_b; \
+    int16_t *tmp = (int16_t *)_tmp; \
+\
+    ff_horizontal_compose_haar0i##ext(b, tmp, w);\
+\
+    for (; x < w2; x++) {\
+        b[2*x  ] = tmp[x];\
+        b[2*x+1] = COMPOSE_HAARiH0(b[x+w2], tmp[x]);\
+    }\
+}\
+static void horizontal_compose_haar1i##ext(uint8_t *_b, uint8_t *_tmp, int w)\
+{\
+    int w2= w>>1;\
+    int x= w2 - (w2&(align-1));\
+    int16_t *b = (int16_t *)_b; \
+    int16_t *tmp = (int16_t *)_tmp; \
+\
+    ff_horizontal_compose_haar1i##ext(b, tmp, w);\
+\
+    for (; x < w2; x++) {\
+        b[2*x  ] = (tmp[x] + 1)>>1;\
+        b[2*x+1] = (COMPOSE_HAARiH0(b[x+w2], tmp[x]) + 1)>>1;\
+    }\
+}\
+\
+
+#if HAVE_X86ASM
+#if !ARCH_X86_64
+COMPOSE_VERTICAL(_mmx, 4)
+#endif
+COMPOSE_VERTICAL(_sse2, 8)
+
+
+void ff_horizontal_compose_dd97i_ssse3(int16_t *_b, int16_t *_tmp, int w);
+
+static void horizontal_compose_dd97i_ssse3(uint8_t *_b, uint8_t *_tmp, int w)
+{
+    int w2= w>>1;
+    int x= w2 - (w2&7);
+    int16_t *b = (int16_t *)_b;
+    int16_t *tmp = (int16_t *)_tmp;
+
+    ff_horizontal_compose_dd97i_ssse3(b, tmp, w);
+
+    for (; x < w2; x++) {
+        b[2*x  ] = (tmp[x] + 1)>>1;
+        b[2*x+1] = (COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1)>>1;
+    }
+}
+#endif
+
+void ff_spatial_idwt_init_x86(DWTContext *d, enum dwt_type type)
+{
+#if HAVE_X86ASM
+  int mm_flags = av_get_cpu_flags();
+
+#if !ARCH_X86_64
+    if (!(mm_flags & AV_CPU_FLAG_MMX))
+        return;
+
+    switch (type) {
+    case DWT_DIRAC_DD9_7:
+        d->vertical_compose_l0 = (void*)vertical_compose53iL0_mmx;
+        d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0_mmx;
+        break;
+    case DWT_DIRAC_LEGALL5_3:
+        d->vertical_compose_l0 = (void*)vertical_compose53iL0_mmx;
+        d->vertical_compose_h0 = (void*)vertical_compose_dirac53iH0_mmx;
+        break;
+    case DWT_DIRAC_DD13_7:
+        d->vertical_compose_l0 = (void*)vertical_compose_dd137iL0_mmx;
+        d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0_mmx;
+        break;
+    case DWT_DIRAC_HAAR0:
+        d->vertical_compose   = (void*)vertical_compose_haar_mmx;
+        d->horizontal_compose = horizontal_compose_haar0i_mmx;
+        break;
+    case DWT_DIRAC_HAAR1:
+        d->vertical_compose   = (void*)vertical_compose_haar_mmx;
+        d->horizontal_compose = horizontal_compose_haar1i_mmx;
+        break;
+    }
+#endif
+
+    if (!(mm_flags & AV_CPU_FLAG_SSE2))
+        return;
+
+    switch (type) {
+    case DWT_DIRAC_DD9_7:
+        d->vertical_compose_l0 = (void*)vertical_compose53iL0_sse2;
+        d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0_sse2;
+        break;
+    case DWT_DIRAC_LEGALL5_3:
+        d->vertical_compose_l0 = (void*)vertical_compose53iL0_sse2;
+        d->vertical_compose_h0 = (void*)vertical_compose_dirac53iH0_sse2;
+        break;
+    case DWT_DIRAC_DD13_7:
+        d->vertical_compose_l0 = (void*)vertical_compose_dd137iL0_sse2;
+        d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0_sse2;
+        break;
+    case DWT_DIRAC_HAAR0:
+        d->vertical_compose   = (void*)vertical_compose_haar_sse2;
+        d->horizontal_compose = horizontal_compose_haar0i_sse2;
+        break;
+    case DWT_DIRAC_HAAR1:
+        d->vertical_compose   = (void*)vertical_compose_haar_sse2;
+        d->horizontal_compose = horizontal_compose_haar1i_sse2;
+        break;
+    }
+
+    if (!(mm_flags & AV_CPU_FLAG_SSSE3))
+        return;
+
+    switch (type) {
+    case DWT_DIRAC_DD9_7:
+        d->horizontal_compose = horizontal_compose_dd97i_ssse3;
+        break;
+    }
+#endif // HAVE_X86ASM
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/diracdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/diracdsp_init.c
new file mode 100644
index 000000000..8cb84eb74
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/diracdsp_init.c
@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2010 David Conrad
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/diracdsp.h"
+#include "fpel.h"
+
+DECL_DIRAC_PIXOP(put, mmx);
+DECL_DIRAC_PIXOP(avg, mmx);
+DECL_DIRAC_PIXOP(avg, mmxext);
+
+void ff_put_dirac_pixels16_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h);
+void ff_avg_dirac_pixels16_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h);
+void ff_put_dirac_pixels32_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h);
+void ff_avg_dirac_pixels32_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h);
+
+void ff_add_rect_clamped_mmx(uint8_t *, const uint16_t *, int, const int16_t *, int, int, int);
+void ff_add_rect_clamped_sse2(uint8_t *, const uint16_t *, int, const int16_t *, int, int, int);
+
+void ff_add_dirac_obmc8_mmx(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
+void ff_add_dirac_obmc16_mmx(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
+void ff_add_dirac_obmc32_mmx(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
+
+void ff_add_dirac_obmc16_sse2(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
+void ff_add_dirac_obmc32_sse2(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
+
+void ff_put_rect_clamped_mmx(uint8_t *dst, int dst_stride, const int16_t *src, int src_stride, int width, int height);
+void ff_put_rect_clamped_sse2(uint8_t *dst, int dst_stride, const int16_t *src, int src_stride, int width, int height);
+void ff_put_signed_rect_clamped_mmx(uint8_t *dst, int dst_stride, const int16_t *src, int src_stride, int width, int height);
+void ff_put_signed_rect_clamped_sse2(uint8_t *dst, int dst_stride, const int16_t *src, int src_stride, int width, int height);
+void ff_put_signed_rect_clamped_10_sse4(uint8_t *dst, int dst_stride, const uint8_t *src, int src_stride, int width, int height);
+
+void ff_dequant_subband_32_sse4(uint8_t *src, uint8_t *dst, ptrdiff_t stride, const int qf, const int qs, int tot_v, int tot_h);
+
+#if HAVE_X86ASM
+
+#define HPEL_FILTER(MMSIZE, EXT)                                                             \
+    void ff_dirac_hpel_filter_v_ ## EXT(uint8_t *, const uint8_t *, int, int);               \
+    void ff_dirac_hpel_filter_h_ ## EXT(uint8_t *, const uint8_t *, int);                    \
+                                                                                             \
+    static void dirac_hpel_filter_ ## EXT(uint8_t *dsth, uint8_t *dstv, uint8_t *dstc,       \
+                                          const uint8_t *src, int stride, int width, int height)   \
+    {                                                                                        \
+        while( height-- )                                                                    \
+        {                                                                                    \
+            ff_dirac_hpel_filter_v_ ## EXT(dstv-MMSIZE, src-MMSIZE, stride, width+MMSIZE+5); \
+            ff_dirac_hpel_filter_h_ ## EXT(dsth, src, width);                                \
+            ff_dirac_hpel_filter_h_ ## EXT(dstc, dstv, width);                               \
+                                                                                             \
+            dsth += stride;                                                                  \
+            dstv += stride;                                                                  \
+            dstc += stride;                                                                  \
+            src  += stride;                                                                  \
+        }                                                                                    \
+    }
+
+#define PIXFUNC(PFX, IDX, EXT)                                                   \
+    /*MMXDISABLEDc->PFX ## _dirac_pixels_tab[0][IDX] = ff_ ## PFX ## _dirac_pixels8_ ## EXT;*/  \
+    c->PFX ## _dirac_pixels_tab[1][IDX] = ff_ ## PFX ## _dirac_pixels16_ ## EXT; \
+    c->PFX ## _dirac_pixels_tab[2][IDX] = ff_ ## PFX ## _dirac_pixels32_ ## EXT
+
+#define DIRAC_PIXOP(OPNAME2, OPNAME, EXT)\
+void ff_ ## OPNAME2 ## _dirac_pixels8_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
+{\
+    if (h&3)\
+        ff_ ## OPNAME2 ## _dirac_pixels8_c(dst, src, stride, h);\
+    else\
+        OPNAME ## _pixels8_ ## EXT(dst, src[0], stride, h);\
+}\
+void ff_ ## OPNAME2 ## _dirac_pixels16_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
+{\
+    if (h&3)\
+        ff_ ## OPNAME2 ## _dirac_pixels16_c(dst, src, stride, h);\
+    else\
+        OPNAME ## _pixels16_ ## EXT(dst, src[0], stride, h);\
+}\
+void ff_ ## OPNAME2 ## _dirac_pixels32_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
+{\
+    if (h&3) {\
+        ff_ ## OPNAME2 ## _dirac_pixels32_c(dst, src, stride, h);\
+    } else {\
+        OPNAME ## _pixels16_ ## EXT(dst   , src[0]   , stride, h);\
+        OPNAME ## _pixels16_ ## EXT(dst+16, src[0]+16, stride, h);\
+    }\
+}
+
+DIRAC_PIXOP(put, ff_put, mmx)
+DIRAC_PIXOP(avg, ff_avg, mmx)
+DIRAC_PIXOP(avg, ff_avg, mmxext)
+
+void ff_put_dirac_pixels16_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h)
+{
+    if (h&3)
+        ff_put_dirac_pixels16_c(dst, src, stride, h);
+    else
+        ff_put_pixels16_sse2(dst, src[0], stride, h);
+}
+void ff_avg_dirac_pixels16_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h)
+{
+    if (h&3)
+        ff_avg_dirac_pixels16_c(dst, src, stride, h);
+    else
+        ff_avg_pixels16_sse2(dst, src[0], stride, h);
+}
+void ff_put_dirac_pixels32_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h)
+{
+    if (h&3) {
+        ff_put_dirac_pixels32_c(dst, src, stride, h);
+    } else {
+        ff_put_pixels16_sse2(dst   , src[0]   , stride, h);
+        ff_put_pixels16_sse2(dst+16, src[0]+16, stride, h);
+    }
+}
+void ff_avg_dirac_pixels32_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h)
+{
+    if (h&3) {
+        ff_avg_dirac_pixels32_c(dst, src, stride, h);
+    } else {
+        ff_avg_pixels16_sse2(dst   , src[0]   , stride, h);
+        ff_avg_pixels16_sse2(dst+16, src[0]+16, stride, h);
+    }
+}
+
+#else // HAVE_X86ASM
+
+#define HPEL_FILTER(MMSIZE, EXT)                                                     \
+    void dirac_hpel_filter_ ## EXT(uint8_t *dsth, uint8_t *dstv, uint8_t *dstc,              \
+                                   const uint8_t *src, int stride, int width, int height);
+
+#define PIXFUNC(PFX, IDX, EXT) do {} while (0)
+
+#endif // HAVE_X86ASM
+
+#if !ARCH_X86_64
+HPEL_FILTER(8, mmx)
+#endif
+HPEL_FILTER(16, sse2)
+
+void ff_diracdsp_init_x86(DiracDSPContext* c)
+{
+    int mm_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(mm_flags)) {
+        c->add_dirac_obmc[0] = ff_add_dirac_obmc8_mmx;
+#if !ARCH_X86_64
+        c->add_dirac_obmc[1] = ff_add_dirac_obmc16_mmx;
+        c->add_dirac_obmc[2] = ff_add_dirac_obmc32_mmx;
+        c->dirac_hpel_filter = dirac_hpel_filter_mmx;
+        c->add_rect_clamped = ff_add_rect_clamped_mmx;
+        c->put_signed_rect_clamped[0] = (void *)ff_put_signed_rect_clamped_mmx;
+#endif
+        PIXFUNC(put, 0, mmx);
+        PIXFUNC(avg, 0, mmx);
+    }
+
+    if (EXTERNAL_MMXEXT(mm_flags)) {
+        PIXFUNC(avg, 0, mmxext);
+    }
+
+    if (EXTERNAL_SSE2(mm_flags)) {
+        c->dirac_hpel_filter = dirac_hpel_filter_sse2;
+        c->add_rect_clamped = ff_add_rect_clamped_sse2;
+        c->put_signed_rect_clamped[0] = (void *)ff_put_signed_rect_clamped_sse2;
+
+        c->add_dirac_obmc[1] = ff_add_dirac_obmc16_sse2;
+        c->add_dirac_obmc[2] = ff_add_dirac_obmc32_sse2;
+
+        c->put_dirac_pixels_tab[1][0] = ff_put_dirac_pixels16_sse2;
+        c->avg_dirac_pixels_tab[1][0] = ff_avg_dirac_pixels16_sse2;
+        c->put_dirac_pixels_tab[2][0] = ff_put_dirac_pixels32_sse2;
+        c->avg_dirac_pixels_tab[2][0] = ff_avg_dirac_pixels32_sse2;
+    }
+
+    if (EXTERNAL_SSE4(mm_flags)) {
+        c->dequant_subband[1]         = ff_dequant_subband_32_sse4;
+        c->put_signed_rect_clamped[1] = ff_put_signed_rect_clamped_10_sse4;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/dnxhdenc_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/dnxhdenc_init.c
new file mode 100644
index 000000000..fd6f15005
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/dnxhdenc_init.c
@@ -0,0 +1,37 @@
+/*
+ * VC3/DNxHD SIMD functions
+ * Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
+ *
+ * VC-3 encoder funded by the British Broadcasting Corporation
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/dnxhdenc.h"
+
+void ff_get_pixels_8x4_sym_sse2(int16_t *block, const uint8_t *pixels,
+                                ptrdiff_t line_size);
+
+av_cold void ff_dnxhdenc_init_x86(DNXHDEncContext *ctx)
+{
+    if (EXTERNAL_SSE2(av_get_cpu_flags())) {
+        if (ctx->cid_table->bit_depth == 8)
+            ctx->get_pixels_8x4_sym = ff_get_pixels_8x4_sym_sse2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/exrdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/exrdsp_init.c
new file mode 100644
index 000000000..63b3480d8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/exrdsp_init.c
@@ -0,0 +1,52 @@
+/*
+ * OpenEXR (.exr) image decoder
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/exrdsp.h"
+
+void ff_reorder_pixels_sse2(uint8_t *dst, const uint8_t *src, ptrdiff_t size);
+
+void ff_reorder_pixels_avx2(uint8_t *dst, const uint8_t *src, ptrdiff_t size);
+
+void ff_predictor_ssse3(uint8_t *src, ptrdiff_t size);
+
+void ff_predictor_avx(uint8_t *src, ptrdiff_t size);
+
+void ff_predictor_avx2(uint8_t *src, ptrdiff_t size);
+
+av_cold void ff_exrdsp_init_x86(ExrDSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        dsp->reorder_pixels = ff_reorder_pixels_sse2;
+    }
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        dsp->predictor = ff_predictor_ssse3;
+    }
+    if (EXTERNAL_AVX(cpu_flags)) {
+        dsp->predictor = ff_predictor_avx;
+    }
+    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+        dsp->reorder_pixels = ff_reorder_pixels_avx2;
+        dsp->predictor      = ff_predictor_avx2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fdct.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fdct.c
new file mode 100644
index 000000000..112566ded
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fdct.c
@@ -0,0 +1,594 @@
+/*
+ * SIMD-optimized forward DCT
+ * The gcc porting is Copyright (c) 2001 Fabrice Bellard.
+ * cleanup/optimizations are Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ * SSE2 optimization is Copyright (c) 2004 Denes Balatoni.
+ *
+ * from  fdctam32.c - AP922 MMX(3D-Now) forward-DCT
+ *
+ *  Intel Application Note AP-922 - fast, precise implementation of DCT
+ *        http://developer.intel.com/vtune/cbts/appnotes.htm
+ *
+ * Also of inspiration:
+ * a page about fdct at http://www.geocities.com/ssavekar/dct.htm
+ * Skal's fdct at http://skal.planet-d.net/coding/dct.html
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/common.h"
+#include "libavutil/x86/asm.h"
+#include "fdct.h"
+
+#if HAVE_MMX_INLINE
+
+//////////////////////////////////////////////////////////////////////
+//
+// constants for the forward DCT
+// -----------------------------
+//
+// Be sure to check that your compiler is aligning all constants to QWORD
+// (8-byte) memory boundaries!  Otherwise the unaligned memory access will
+// severely stall MMX execution.
+//
+//////////////////////////////////////////////////////////////////////
+
+#define BITS_FRW_ACC   3 //; 2 or 3 for accuracy
+#define SHIFT_FRW_COL  BITS_FRW_ACC
+#define SHIFT_FRW_ROW  (BITS_FRW_ACC + 17 - 3)
+#define RND_FRW_ROW    (1 << (SHIFT_FRW_ROW-1))
+//#define RND_FRW_COL    (1 << (SHIFT_FRW_COL-1))
+
+#define X8(x) x,x,x,x,x,x,x,x
+
+//concatenated table, for forward DCT transformation
+DECLARE_ALIGNED(16, static const int16_t, fdct_tg_all_16)[24] = {
+    X8(13036),  // tg * (2<<16) + 0.5
+    X8(27146),  // tg * (2<<16) + 0.5
+    X8(-21746)  // tg * (2<<16) + 0.5
+};
+
+DECLARE_ALIGNED(16, static const int16_t, ocos_4_16)[8] = {
+    X8(23170)   //cos * (2<<15) + 0.5
+};
+
+DECLARE_ALIGNED(16, static const int16_t, fdct_one_corr)[8] = { X8(1) };
+
+DECLARE_ALIGNED(8, static const int32_t, fdct_r_row)[2] = {RND_FRW_ROW, RND_FRW_ROW };
+
+static const struct
+{
+ DECLARE_ALIGNED(16, const int32_t, fdct_r_row_sse2)[4];
+} fdct_r_row_sse2 =
+{{
+ RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW
+}};
+//DECLARE_ALIGNED(16, static const long, fdct_r_row_sse2)[4] = {RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW};
+
+DECLARE_ALIGNED(8, static const int16_t, tab_frw_01234567)[] = {  // forward_dct coeff table
+  16384,   16384,   22725,   19266,
+  16384,   16384,   12873,    4520,
+  21407,    8867,   19266,   -4520,
+  -8867,  -21407,  -22725,  -12873,
+  16384,  -16384,   12873,  -22725,
+ -16384,   16384,    4520,   19266,
+   8867,  -21407,    4520,  -12873,
+  21407,   -8867,   19266,  -22725,
+
+  22725,   22725,   31521,   26722,
+  22725,   22725,   17855,    6270,
+  29692,   12299,   26722,   -6270,
+ -12299,  -29692,  -31521,  -17855,
+  22725,  -22725,   17855,  -31521,
+ -22725,   22725,    6270,   26722,
+  12299,  -29692,    6270,  -17855,
+  29692,  -12299,   26722,  -31521,
+
+  21407,   21407,   29692,   25172,
+  21407,   21407,   16819,    5906,
+  27969,   11585,   25172,   -5906,
+ -11585,  -27969,  -29692,  -16819,
+  21407,  -21407,   16819,  -29692,
+ -21407,   21407,    5906,   25172,
+  11585,  -27969,    5906,  -16819,
+  27969,  -11585,   25172,  -29692,
+
+  19266,   19266,   26722,   22654,
+  19266,   19266,   15137,    5315,
+  25172,   10426,   22654,   -5315,
+ -10426,  -25172,  -26722,  -15137,
+  19266,  -19266,   15137,  -26722,
+ -19266,   19266,    5315,   22654,
+  10426,  -25172,    5315,  -15137,
+  25172,  -10426,   22654,  -26722,
+
+  16384,   16384,   22725,   19266,
+  16384,   16384,   12873,    4520,
+  21407,    8867,   19266,   -4520,
+  -8867,  -21407,  -22725,  -12873,
+  16384,  -16384,   12873,  -22725,
+ -16384,   16384,    4520,   19266,
+   8867,  -21407,    4520,  -12873,
+  21407,   -8867,   19266,  -22725,
+
+  19266,   19266,   26722,   22654,
+  19266,   19266,   15137,    5315,
+  25172,   10426,   22654,   -5315,
+ -10426,  -25172,  -26722,  -15137,
+  19266,  -19266,   15137,  -26722,
+ -19266,   19266,    5315,   22654,
+  10426,  -25172,    5315,  -15137,
+  25172,  -10426,   22654,  -26722,
+
+  21407,   21407,   29692,   25172,
+  21407,   21407,   16819,    5906,
+  27969,   11585,   25172,   -5906,
+ -11585,  -27969,  -29692,  -16819,
+  21407,  -21407,   16819,  -29692,
+ -21407,   21407,    5906,   25172,
+  11585,  -27969,    5906,  -16819,
+  27969,  -11585,   25172,  -29692,
+
+  22725,   22725,   31521,   26722,
+  22725,   22725,   17855,    6270,
+  29692,   12299,   26722,   -6270,
+ -12299,  -29692,  -31521,  -17855,
+  22725,  -22725,   17855,  -31521,
+ -22725,   22725,    6270,   26722,
+  12299,  -29692,    6270,  -17855,
+  29692,  -12299,   26722,  -31521,
+};
+
+static const struct
+{
+ DECLARE_ALIGNED(16, const int16_t, tab_frw_01234567_sse2)[256];
+} tab_frw_01234567_sse2 =
+{{
+//DECLARE_ALIGNED(16, static const int16_t, tab_frw_01234567_sse2)[] = {  // forward_dct coeff table
+#define TABLE_SSE2 C4,  C4,  C1,  C3, -C6, -C2, -C1, -C5, \
+                   C4,  C4,  C5,  C7,  C2,  C6,  C3, -C7, \
+                  -C4,  C4,  C7,  C3,  C6, -C2,  C7, -C5, \
+                   C4, -C4,  C5, -C1,  C2, -C6,  C3, -C1,
+// c1..c7 * cos(pi/4) * 2^15
+#define C1 22725
+#define C2 21407
+#define C3 19266
+#define C4 16384
+#define C5 12873
+#define C6 8867
+#define C7 4520
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 31521
+#define C2 29692
+#define C3 26722
+#define C4 22725
+#define C5 17855
+#define C6 12299
+#define C7 6270
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 29692
+#define C2 27969
+#define C3 25172
+#define C4 21407
+#define C5 16819
+#define C6 11585
+#define C7 5906
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 26722
+#define C2 25172
+#define C3 22654
+#define C4 19266
+#define C5 15137
+#define C6 10426
+#define C7 5315
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 22725
+#define C2 21407
+#define C3 19266
+#define C4 16384
+#define C5 12873
+#define C6 8867
+#define C7 4520
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 26722
+#define C2 25172
+#define C3 22654
+#define C4 19266
+#define C5 15137
+#define C6 10426
+#define C7 5315
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 29692
+#define C2 27969
+#define C3 25172
+#define C4 21407
+#define C5 16819
+#define C6 11585
+#define C7 5906
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 31521
+#define C2 29692
+#define C3 26722
+#define C4 22725
+#define C5 17855
+#define C6 12299
+#define C7 6270
+TABLE_SSE2
+}};
+
+#define S(s) AV_TOSTRING(s) //AV_STRINGIFY is too long
+
+#define FDCT_COL(cpu, mm, mov)\
+static av_always_inline void fdct_col_##cpu(const int16_t *in, int16_t *out, int offset)\
+{\
+    __asm__ volatile (\
+        #mov"      16(%0),  %%"#mm"0 \n\t" \
+        #mov"      96(%0),  %%"#mm"1 \n\t" \
+        #mov"    %%"#mm"0,  %%"#mm"2 \n\t" \
+        #mov"      32(%0),  %%"#mm"3 \n\t" \
+        "paddsw  %%"#mm"1,  %%"#mm"0 \n\t" \
+        #mov"      80(%0),  %%"#mm"4 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"0 \n\t" \
+        #mov"        (%0),  %%"#mm"5 \n\t" \
+        "paddsw  %%"#mm"3,  %%"#mm"4 \n\t" \
+        "paddsw   112(%0),  %%"#mm"5 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"4 \n\t" \
+        #mov"    %%"#mm"0,  %%"#mm"6 \n\t" \
+        "psubsw  %%"#mm"1,  %%"#mm"2 \n\t" \
+        #mov"      16(%1),  %%"#mm"1 \n\t" \
+        "psubsw  %%"#mm"4,  %%"#mm"0 \n\t" \
+        #mov"      48(%0),  %%"#mm"7 \n\t" \
+        "pmulhw  %%"#mm"0,  %%"#mm"1 \n\t" \
+        "paddsw    64(%0),  %%"#mm"7 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"5 \n\t" \
+        "paddsw  %%"#mm"4,  %%"#mm"6 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"7 \n\t" \
+        #mov"    %%"#mm"5,  %%"#mm"4 \n\t" \
+        "psubsw  %%"#mm"7,  %%"#mm"5 \n\t" \
+        "paddsw  %%"#mm"5,  %%"#mm"1 \n\t" \
+        "paddsw  %%"#mm"7,  %%"#mm"4 \n\t" \
+        "por         (%2),  %%"#mm"1 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)"+1, %%"#mm"2 \n\t" \
+        "pmulhw    16(%1),  %%"#mm"5 \n\t" \
+        #mov"    %%"#mm"4,  %%"#mm"7 \n\t" \
+        "psubsw    80(%0),  %%"#mm"3 \n\t" \
+        "psubsw  %%"#mm"6,  %%"#mm"4 \n\t" \
+        #mov"    %%"#mm"1,    32(%3) \n\t" \
+        "paddsw  %%"#mm"6,  %%"#mm"7 \n\t" \
+        #mov"      48(%0),  %%"#mm"1 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)"+1, %%"#mm"3 \n\t" \
+        "psubsw    64(%0),  %%"#mm"1 \n\t" \
+        #mov"    %%"#mm"2,  %%"#mm"6 \n\t" \
+        #mov"    %%"#mm"4,    64(%3) \n\t" \
+        "paddsw  %%"#mm"3,  %%"#mm"2 \n\t" \
+        "pmulhw      (%4),  %%"#mm"2 \n\t" \
+        "psubsw  %%"#mm"3,  %%"#mm"6 \n\t" \
+        "pmulhw      (%4),  %%"#mm"6 \n\t" \
+        "psubsw  %%"#mm"0,  %%"#mm"5 \n\t" \
+        "por         (%2),  %%"#mm"5 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"1 \n\t" \
+        "por         (%2),  %%"#mm"2 \n\t" \
+        #mov"    %%"#mm"1,  %%"#mm"4 \n\t" \
+        #mov"        (%0),  %%"#mm"3 \n\t" \
+        "paddsw  %%"#mm"6,  %%"#mm"1 \n\t" \
+        "psubsw   112(%0),  %%"#mm"3 \n\t" \
+        "psubsw  %%"#mm"6,  %%"#mm"4 \n\t" \
+        #mov"        (%1),  %%"#mm"0 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"3 \n\t" \
+        #mov"      32(%1),  %%"#mm"6 \n\t" \
+        "pmulhw  %%"#mm"1,  %%"#mm"0 \n\t" \
+        #mov"    %%"#mm"7,      (%3) \n\t" \
+        "pmulhw  %%"#mm"4,  %%"#mm"6 \n\t" \
+        #mov"    %%"#mm"5,    96(%3) \n\t" \
+        #mov"    %%"#mm"3,  %%"#mm"7 \n\t" \
+        #mov"      32(%1),  %%"#mm"5 \n\t" \
+        "psubsw  %%"#mm"2,  %%"#mm"7 \n\t" \
+        "paddsw  %%"#mm"2,  %%"#mm"3 \n\t" \
+        "pmulhw  %%"#mm"7,  %%"#mm"5 \n\t" \
+        "paddsw  %%"#mm"3,  %%"#mm"0 \n\t" \
+        "paddsw  %%"#mm"4,  %%"#mm"6 \n\t" \
+        "pmulhw      (%1),  %%"#mm"3 \n\t" \
+        "por         (%2),  %%"#mm"0 \n\t" \
+        "paddsw  %%"#mm"7,  %%"#mm"5 \n\t" \
+        "psubsw  %%"#mm"6,  %%"#mm"7 \n\t" \
+        #mov"    %%"#mm"0,    16(%3) \n\t" \
+        "paddsw  %%"#mm"4,  %%"#mm"5 \n\t" \
+        #mov"    %%"#mm"7,    48(%3) \n\t" \
+        "psubsw  %%"#mm"1,  %%"#mm"3 \n\t" \
+        #mov"    %%"#mm"5,    80(%3) \n\t" \
+        #mov"    %%"#mm"3,   112(%3) \n\t" \
+        : \
+        : "r" (in  + offset), "r" (fdct_tg_all_16), "r" (fdct_one_corr), \
+          "r" (out + offset), "r" (ocos_4_16)); \
+}
+
+FDCT_COL(mmx, mm, movq)
+FDCT_COL(sse2, xmm, movdqa)
+
+static av_always_inline void fdct_row_sse2(const int16_t *in, int16_t *out)
+{
+    __asm__ volatile(
+#define FDCT_ROW_SSE2_H1(i,t)                    \
+        "movq      " #i "(%0), %%xmm2      \n\t" \
+        "movq      " #i "+8(%0), %%xmm0    \n\t" \
+        "movdqa    " #t "+32(%1), %%xmm3   \n\t" \
+        "movdqa    " #t "+48(%1), %%xmm7   \n\t" \
+        "movdqa    " #t "(%1), %%xmm4      \n\t" \
+        "movdqa    " #t "+16(%1), %%xmm5   \n\t"
+
+#define FDCT_ROW_SSE2_H2(i,t)                    \
+        "movq      " #i "(%0), %%xmm2      \n\t" \
+        "movq      " #i "+8(%0), %%xmm0    \n\t" \
+        "movdqa    " #t "+32(%1), %%xmm3   \n\t" \
+        "movdqa    " #t "+48(%1), %%xmm7   \n\t"
+
+#define FDCT_ROW_SSE2(i)                      \
+        "movq      %%xmm2, %%xmm1       \n\t" \
+        "pshuflw   $27, %%xmm0, %%xmm0  \n\t" \
+        "paddsw    %%xmm0, %%xmm1       \n\t" \
+        "psubsw    %%xmm0, %%xmm2       \n\t" \
+        "punpckldq %%xmm2, %%xmm1       \n\t" \
+        "pshufd    $78, %%xmm1, %%xmm2  \n\t" \
+        "pmaddwd   %%xmm2, %%xmm3       \n\t" \
+        "pmaddwd   %%xmm1, %%xmm7       \n\t" \
+        "pmaddwd   %%xmm5, %%xmm2       \n\t" \
+        "pmaddwd   %%xmm4, %%xmm1       \n\t" \
+        "paddd     %%xmm7, %%xmm3       \n\t" \
+        "paddd     %%xmm2, %%xmm1       \n\t" \
+        "paddd     %%xmm6, %%xmm3       \n\t" \
+        "paddd     %%xmm6, %%xmm1       \n\t" \
+        "psrad     %3, %%xmm3           \n\t" \
+        "psrad     %3, %%xmm1           \n\t" \
+        "packssdw  %%xmm3, %%xmm1       \n\t" \
+        "movdqa    %%xmm1, " #i "(%4)   \n\t"
+
+        "movdqa    (%2), %%xmm6         \n\t"
+        FDCT_ROW_SSE2_H1(0,0)
+        FDCT_ROW_SSE2(0)
+        FDCT_ROW_SSE2_H2(64,0)
+        FDCT_ROW_SSE2(64)
+
+        FDCT_ROW_SSE2_H1(16,64)
+        FDCT_ROW_SSE2(16)
+        FDCT_ROW_SSE2_H2(112,64)
+        FDCT_ROW_SSE2(112)
+
+        FDCT_ROW_SSE2_H1(32,128)
+        FDCT_ROW_SSE2(32)
+        FDCT_ROW_SSE2_H2(96,128)
+        FDCT_ROW_SSE2(96)
+
+        FDCT_ROW_SSE2_H1(48,192)
+        FDCT_ROW_SSE2(48)
+        FDCT_ROW_SSE2_H2(80,192)
+        FDCT_ROW_SSE2(80)
+        :
+        : "r" (in), "r" (tab_frw_01234567_sse2.tab_frw_01234567_sse2),
+          "r" (fdct_r_row_sse2.fdct_r_row_sse2), "i" (SHIFT_FRW_ROW), "r" (out)
+          XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
+                            "%xmm4", "%xmm5", "%xmm6", "%xmm7")
+    );
+}
+
+static av_always_inline void fdct_row_mmxext(const int16_t *in, int16_t *out,
+                                             const int16_t *table)
+{
+    __asm__ volatile (
+        "pshufw    $0x1B, 8(%0), %%mm5 \n\t"
+        "movq       (%0), %%mm0 \n\t"
+        "movq      %%mm0, %%mm1 \n\t"
+        "paddsw    %%mm5, %%mm0 \n\t"
+        "psubsw    %%mm5, %%mm1 \n\t"
+        "movq      %%mm0, %%mm2 \n\t"
+        "punpckldq %%mm1, %%mm0 \n\t"
+        "punpckhdq %%mm1, %%mm2 \n\t"
+        "movq       (%1), %%mm1 \n\t"
+        "movq      8(%1), %%mm3 \n\t"
+        "movq     16(%1), %%mm4 \n\t"
+        "movq     24(%1), %%mm5 \n\t"
+        "movq     32(%1), %%mm6 \n\t"
+        "movq     40(%1), %%mm7 \n\t"
+        "pmaddwd   %%mm0, %%mm1 \n\t"
+        "pmaddwd   %%mm2, %%mm3 \n\t"
+        "pmaddwd   %%mm0, %%mm4 \n\t"
+        "pmaddwd   %%mm2, %%mm5 \n\t"
+        "pmaddwd   %%mm0, %%mm6 \n\t"
+        "pmaddwd   %%mm2, %%mm7 \n\t"
+        "pmaddwd  48(%1), %%mm0 \n\t"
+        "pmaddwd  56(%1), %%mm2 \n\t"
+        "paddd     %%mm1, %%mm3 \n\t"
+        "paddd     %%mm4, %%mm5 \n\t"
+        "paddd     %%mm6, %%mm7 \n\t"
+        "paddd     %%mm0, %%mm2 \n\t"
+        "movq       (%2), %%mm0 \n\t"
+        "paddd     %%mm0, %%mm3 \n\t"
+        "paddd     %%mm0, %%mm5 \n\t"
+        "paddd     %%mm0, %%mm7 \n\t"
+        "paddd     %%mm0, %%mm2 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm3 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm5 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm7 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm2 \n\t"
+        "packssdw  %%mm5, %%mm3 \n\t"
+        "packssdw  %%mm2, %%mm7 \n\t"
+        "movq      %%mm3,  (%3) \n\t"
+        "movq      %%mm7, 8(%3) \n\t"
+        :
+        : "r" (in), "r" (table), "r" (fdct_r_row), "r" (out));
+}
+
+static av_always_inline void fdct_row_mmx(const int16_t *in, int16_t *out, const int16_t *table)
+{
+    //FIXME reorder (I do not have an old MMX-only CPU here to benchmark ...)
+    __asm__ volatile(
+        "movd     12(%0), %%mm1 \n\t"
+        "punpcklwd 8(%0), %%mm1 \n\t"
+        "movq      %%mm1, %%mm2 \n\t"
+        "psrlq     $0x20, %%mm1 \n\t"
+        "movq      0(%0), %%mm0 \n\t"
+        "punpcklwd %%mm2, %%mm1 \n\t"
+        "movq      %%mm0, %%mm5 \n\t"
+        "paddsw    %%mm1, %%mm0 \n\t"
+        "psubsw    %%mm1, %%mm5 \n\t"
+        "movq      %%mm0, %%mm2 \n\t"
+        "punpckldq %%mm5, %%mm0 \n\t"
+        "punpckhdq %%mm5, %%mm2 \n\t"
+        "movq      0(%1), %%mm1 \n\t"
+        "movq      8(%1), %%mm3 \n\t"
+        "movq     16(%1), %%mm4 \n\t"
+        "movq     24(%1), %%mm5 \n\t"
+        "movq     32(%1), %%mm6 \n\t"
+        "movq     40(%1), %%mm7 \n\t"
+        "pmaddwd   %%mm0, %%mm1 \n\t"
+        "pmaddwd   %%mm2, %%mm3 \n\t"
+        "pmaddwd   %%mm0, %%mm4 \n\t"
+        "pmaddwd   %%mm2, %%mm5 \n\t"
+        "pmaddwd   %%mm0, %%mm6 \n\t"
+        "pmaddwd   %%mm2, %%mm7 \n\t"
+        "pmaddwd  48(%1), %%mm0 \n\t"
+        "pmaddwd  56(%1), %%mm2 \n\t"
+        "paddd     %%mm1, %%mm3 \n\t"
+        "paddd     %%mm4, %%mm5 \n\t"
+        "paddd     %%mm6, %%mm7 \n\t"
+        "paddd     %%mm0, %%mm2 \n\t"
+        "movq       (%2), %%mm0 \n\t"
+        "paddd     %%mm0, %%mm3 \n\t"
+        "paddd     %%mm0, %%mm5 \n\t"
+        "paddd     %%mm0, %%mm7 \n\t"
+        "paddd     %%mm0, %%mm2 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm3 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm5 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm7 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm2 \n\t"
+        "packssdw  %%mm5, %%mm3 \n\t"
+        "packssdw  %%mm2, %%mm7 \n\t"
+        "movq      %%mm3, 0(%3) \n\t"
+        "movq      %%mm7, 8(%3) \n\t"
+        :
+        : "r" (in), "r" (table), "r" (fdct_r_row), "r" (out));
+}
+
+void ff_fdct_mmx(int16_t *block)
+{
+    DECLARE_ALIGNED(8, int64_t, align_tmp)[16];
+    int16_t * block1= (int16_t*)align_tmp;
+    const int16_t *table= tab_frw_01234567;
+    int i;
+
+    fdct_col_mmx(block, block1, 0);
+    fdct_col_mmx(block, block1, 4);
+
+    for(i=8;i>0;i--) {
+        fdct_row_mmx(block1, block, table);
+        block1 += 8;
+        table += 32;
+        block += 8;
+    }
+}
+
+#endif /* HAVE_MMX_INLINE */
+
+#if HAVE_MMXEXT_INLINE
+
+void ff_fdct_mmxext(int16_t *block)
+{
+    DECLARE_ALIGNED(8, int64_t, align_tmp)[16];
+    int16_t *block1= (int16_t*)align_tmp;
+    const int16_t *table= tab_frw_01234567;
+    int i;
+
+    fdct_col_mmx(block, block1, 0);
+    fdct_col_mmx(block, block1, 4);
+
+    for(i=8;i>0;i--) {
+        fdct_row_mmxext(block1, block, table);
+        block1 += 8;
+        table += 32;
+        block += 8;
+    }
+}
+
+#endif /* HAVE_MMXEXT_INLINE */
+
+#if HAVE_SSE2_INLINE
+
+void ff_fdct_sse2(int16_t *block)
+{
+    DECLARE_ALIGNED(16, int64_t, align_tmp)[16];
+    int16_t * const block1= (int16_t*)align_tmp;
+
+    fdct_col_sse2(block, block1, 0);
+    fdct_row_sse2(block1, block);
+}
+
+#endif /* HAVE_SSE2_INLINE */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fdct.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fdct.h
new file mode 100644
index 000000000..648cdc535
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fdct.h
@@ -0,0 +1,28 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_FDCT_H
+#define AVCODEC_X86_FDCT_H
+
+#include <stdint.h>
+
+void ff_fdct_mmx(int16_t *block);
+void ff_fdct_mmxext(int16_t *block);
+void ff_fdct_sse2(int16_t *block);
+
+#endif /* AVCODEC_X86_FDCT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fdctdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fdctdsp_init.c
new file mode 100644
index 000000000..0cb5fd625
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fdctdsp_init.c
@@ -0,0 +1,44 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/fdctdsp.h"
+#include "fdct.h"
+
+av_cold void ff_fdctdsp_init_x86(FDCTDSPContext *c, AVCodecContext *avctx,
+                                 unsigned high_bit_depth)
+{
+    int cpu_flags = av_get_cpu_flags();
+    const int dct_algo = avctx->dct_algo;
+
+    if (!high_bit_depth) {
+        if ((dct_algo == FF_DCT_AUTO || dct_algo == FF_DCT_MMX)) {
+            if (INLINE_MMX(cpu_flags))
+                c->fdct = ff_fdct_mmx;
+
+            if (INLINE_MMXEXT(cpu_flags))
+                c->fdct = ff_fdct_mmxext;
+
+            if (INLINE_SSE2(cpu_flags))
+                c->fdct = ff_fdct_sse2;
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fft.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fft.asm
new file mode 100644
index 000000000..a671e8f48
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fft.asm
@@ -0,0 +1,1085 @@
+;******************************************************************************
+;* FFT transform with SSE/3DNow optimizations
+;* Copyright (c) 2008 Loren Merritt
+;* Copyright (c) 2011 Vitor Sessak
+;*
+;* This algorithm (though not any of the implementation details) is
+;* based on libdjbfft by D. J. Bernstein.
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+; These functions are not individually interchangeable with the C versions.
+; While C takes arrays of FFTComplex, SSE/3DNow leave intermediate results
+; in blocks as conventient to the vector size.
+; i.e. {4x real, 4x imaginary, 4x real, ...} (or 2x respectively)
+
+%include "libavutil/x86/x86util.asm"
+
+%if ARCH_X86_64
+%define pointer resq
+%else
+%define pointer resd
+%endif
+
+struc FFTContext
+    .nbits:    resd 1
+    .reverse:  resd 1
+    .revtab:   pointer 1
+    .tmpbuf:   pointer 1
+    .mdctsize: resd 1
+    .mdctbits: resd 1
+    .tcos:     pointer 1
+    .tsin:     pointer 1
+    .fftperm:  pointer 1
+    .fftcalc:  pointer 1
+    .imdctcalc:pointer 1
+    .imdcthalf:pointer 1
+endstruc
+
+SECTION_RODATA 32
+
+%define M_SQRT1_2 0.70710678118654752440
+%define M_COS_PI_1_8 0.923879532511287
+%define M_COS_PI_3_8 0.38268343236509
+
+ps_cos16_1: dd 1.0, M_COS_PI_1_8, M_SQRT1_2, M_COS_PI_3_8, 1.0, M_COS_PI_1_8, M_SQRT1_2, M_COS_PI_3_8
+ps_cos16_2: dd 0, M_COS_PI_3_8, M_SQRT1_2, M_COS_PI_1_8, 0, -M_COS_PI_3_8, -M_SQRT1_2, -M_COS_PI_1_8
+
+ps_root2: times 8 dd M_SQRT1_2
+ps_root2mppm: dd -M_SQRT1_2, M_SQRT1_2, M_SQRT1_2, -M_SQRT1_2, -M_SQRT1_2, M_SQRT1_2, M_SQRT1_2, -M_SQRT1_2
+ps_p1p1m1p1: dd 0, 0, 1<<31, 0, 0, 0, 1<<31, 0
+
+perm1: dd 0x00, 0x02, 0x03, 0x01, 0x03, 0x00, 0x02, 0x01
+perm2: dd 0x00, 0x01, 0x02, 0x03, 0x01, 0x00, 0x02, 0x03
+ps_p1p1m1p1root2: dd 1.0, 1.0, -1.0, 1.0, M_SQRT1_2, M_SQRT1_2, M_SQRT1_2, M_SQRT1_2
+ps_m1m1p1m1p1m1m1m1: dd 1<<31, 1<<31, 0, 1<<31, 0, 1<<31, 1<<31, 1<<31
+ps_m1p1: dd 1<<31, 0
+
+cextern ps_neg
+
+%assign i 16
+%rep 14
+cextern cos_ %+ i
+%assign i i<<1
+%endrep
+
+%if ARCH_X86_64
+    %define pointer dq
+%else
+    %define pointer dd
+%endif
+
+%macro IF0 1+
+%endmacro
+%macro IF1 1+
+    %1
+%endmacro
+
+SECTION .text
+
+%macro T2_3DNOW 4 ; z0, z1, mem0, mem1
+    mova     %1, %3
+    mova     %2, %1
+    pfadd    %1, %4
+    pfsub    %2, %4
+%endmacro
+
+%macro T4_3DNOW 6 ; z0, z1, z2, z3, tmp0, tmp1
+    mova     %5, %3
+    pfsub    %3, %4
+    pfadd    %5, %4 ; {t6,t5}
+    pxor     %3, [ps_m1p1] ; {t8,t7}
+    mova     %6, %1
+    movd [r0+12], %3
+    punpckhdq %3, [r0+8]
+    pfadd    %1, %5 ; {r0,i0}
+    pfsub    %6, %5 ; {r2,i2}
+    mova     %4, %2
+    pfadd    %2, %3 ; {r1,i1}
+    pfsub    %4, %3 ; {r3,i3}
+    SWAP     %3, %6
+%endmacro
+
+;  in: %1 = {r0,i0,r2,i2,r4,i4,r6,i6}
+;      %2 = {r1,i1,r3,i3,r5,i5,r7,i7}
+;      %3, %4, %5 tmp
+; out: %1 = {r0,r1,r2,r3,i0,i1,i2,i3}
+;      %2 = {r4,r5,r6,r7,i4,i5,i6,i7}
+%macro T8_AVX 5
+    vsubps     %5, %1, %2       ; v  = %1 - %2
+    vaddps     %3, %1, %2       ; w  = %1 + %2
+    vmulps     %2, %5, [ps_p1p1m1p1root2]  ; v *= vals1
+    vpermilps  %2, %2, [perm1]
+    vblendps   %1, %2, %3, 0x33 ; q = {w1,w2,v4,v2,w5,w6,v7,v6}
+    vshufps    %5, %3, %2, 0x4e ; r = {w3,w4,v1,v3,w7,w8,v8,v5}
+    vsubps     %4, %5, %1       ; s = r - q
+    vaddps     %1, %5, %1       ; u = r + q
+    vpermilps  %1, %1, [perm2]  ; k  = {u1,u2,u3,u4,u6,u5,u7,u8}
+    vshufps    %5, %4, %1, 0xbb
+    vshufps    %3, %4, %1, 0xee
+    vperm2f128 %3, %3, %5, 0x13
+    vxorps     %4, %4, [ps_m1m1p1m1p1m1m1m1]  ; s *= {1,1,-1,-1,1,-1,-1,-1}
+    vshufps    %2, %1, %4, 0xdd
+    vshufps    %1, %1, %4, 0x88
+    vperm2f128 %4, %2, %1, 0x02 ; v  = {k1,k3,s1,s3,k2,k4,s2,s4}
+    vperm2f128 %1, %1, %2, 0x13 ; w  = {k6,k8,s6,s8,k5,k7,s5,s7}
+    vsubps     %5, %1, %3
+    vblendps   %1, %5, %1, 0x55 ; w -= {0,s7,0,k7,0,s8,0,k8}
+    vsubps     %2, %4, %1       ; %2 = v - w
+    vaddps     %1, %4, %1       ; %1 = v + w
+%endmacro
+
+; In SSE mode do one fft4 transforms
+; in:  %1={r0,i0,r2,i2} %2={r1,i1,r3,i3}
+; out: %1={r0,r1,r2,r3} %2={i0,i1,i2,i3}
+;
+; In AVX mode do two fft4 transforms
+; in:  %1={r0,i0,r2,i2,r4,i4,r6,i6} %2={r1,i1,r3,i3,r5,i5,r7,i7}
+; out: %1={r0,r1,r2,r3,r4,r5,r6,r7} %2={i0,i1,i2,i3,i4,i5,i6,i7}
+%macro T4_SSE 3
+    subps    %3, %1, %2       ; {t3,t4,-t8,t7}
+    addps    %1, %1, %2       ; {t1,t2,t6,t5}
+    xorps    %3, %3, [ps_p1p1m1p1]
+    shufps   %2, %1, %3, 0xbe ; {t6,t5,t7,t8}
+    shufps   %1, %1, %3, 0x44 ; {t1,t2,t3,t4}
+    subps    %3, %1, %2       ; {r2,i2,r3,i3}
+    addps    %1, %1, %2       ; {r0,i0,r1,i1}
+    shufps   %2, %1, %3, 0xdd ; {i0,i1,i2,i3}
+    shufps   %1, %1, %3, 0x88 ; {r0,r1,r2,r3}
+%endmacro
+
+; In SSE mode do one FFT8
+; in:  %1={r0,r1,r2,r3} %2={i0,i1,i2,i3} %3={r4,i4,r6,i6} %4={r5,i5,r7,i7}
+; out: %1={r0,r1,r2,r3} %2={i0,i1,i2,i3} %1={r4,r5,r6,r7} %2={i4,i5,i6,i7}
+;
+; In AVX mode do two FFT8
+; in:  %1={r0,i0,r2,i2,r8, i8, r10,i10} %2={r1,i1,r3,i3,r9, i9, r11,i11}
+;      %3={r4,i4,r6,i6,r12,i12,r14,i14} %4={r5,i5,r7,i7,r13,i13,r15,i15}
+; out: %1={r0,r1,r2,r3,r8, r9, r10,r11} %2={i0,i1,i2,i3,i8, i9, i10,i11}
+;      %3={r4,r5,r6,r7,r12,r13,r14,r15} %4={i4,i5,i6,i7,i12,i13,i14,i15}
+%macro T8_SSE 6
+    addps    %6, %3, %4       ; {t1,t2,t3,t4}
+    subps    %3, %3, %4       ; {r5,i5,r7,i7}
+    shufps   %4, %3, %3, 0xb1 ; {i5,r5,i7,r7}
+    mulps    %3, %3, [ps_root2mppm] ; {-r5,i5,r7,-i7}
+    mulps    %4, %4, [ps_root2]
+    addps    %3, %3, %4       ; {t8,t7,ta,t9}
+    shufps   %4, %6, %3, 0x9c ; {t1,t4,t7,ta}
+    shufps   %6, %6, %3, 0x36 ; {t3,t2,t9,t8}
+    subps    %3, %6, %4       ; {t6,t5,tc,tb}
+    addps    %6, %6, %4       ; {t1,t2,t9,ta}
+    shufps   %5, %6, %3, 0x8d ; {t2,ta,t6,tc}
+    shufps   %6, %6, %3, 0xd8 ; {t1,t9,t5,tb}
+    subps    %3, %1, %6       ; {r4,r5,r6,r7}
+    addps    %1, %1, %6       ; {r0,r1,r2,r3}
+    subps    %4, %2, %5       ; {i4,i5,i6,i7}
+    addps    %2, %2, %5       ; {i0,i1,i2,i3}
+%endmacro
+
+%macro INTERL 5
+%if cpuflag(avx)
+    vunpckhps      %3, %2, %1
+    vunpcklps      %2, %2, %1
+    vextractf128   %4(%5), %2, 0
+    vextractf128  %4 %+ H(%5), %3, 0
+    vextractf128   %4(%5 + 1), %2, 1
+    vextractf128  %4 %+ H(%5 + 1), %3, 1
+%elif cpuflag(sse) || cpuflag(3dnow)
+    mova     %3, %2
+    unpcklps %2, %1
+    unpckhps %3, %1
+    mova  %4(%5), %2
+    mova  %4(%5+1), %3
+%endif
+%endmacro
+
+; scheduled for cpu-bound sizes
+%macro PASS_SMALL 3 ; (to load m4-m7), wre, wim
+IF%1 mova    m4, Z(4)
+IF%1 mova    m5, Z(5)
+    mova     m0, %2 ; wre
+    mova     m1, %3 ; wim
+    mulps    m2, m4, m0 ; r2*wre
+IF%1 mova    m6, Z2(6)
+    mulps    m3, m5, m1 ; i2*wim
+IF%1 mova    m7, Z2(7)
+    mulps    m4, m4, m1 ; r2*wim
+    mulps    m5, m5, m0 ; i2*wre
+    addps    m2, m2, m3 ; r2*wre + i2*wim
+    mulps    m3, m1, m7 ; i3*wim
+    subps    m5, m5, m4 ; i2*wre - r2*wim
+    mulps    m1, m1, m6 ; r3*wim
+    mulps    m4, m0, m6 ; r3*wre
+    mulps    m0, m0, m7 ; i3*wre
+    subps    m4, m4, m3 ; r3*wre - i3*wim
+    mova     m3, Z(0)
+    addps    m0, m0, m1 ; i3*wre + r3*wim
+    subps    m1, m4, m2 ; t3
+    addps    m4, m4, m2 ; t5
+    subps    m3, m3, m4 ; r2
+    addps    m4, m4, Z(0) ; r0
+    mova     m6, Z(2)
+    mova   Z(4), m3
+    mova   Z(0), m4
+    subps    m3, m5, m0 ; t4
+    subps    m4, m6, m3 ; r3
+    addps    m3, m3, m6 ; r1
+    mova  Z2(6), m4
+    mova   Z(2), m3
+    mova     m2, Z(3)
+    addps    m3, m5, m0 ; t6
+    subps    m2, m2, m1 ; i3
+    mova     m7, Z(1)
+    addps    m1, m1, Z(3) ; i1
+    mova  Z2(7), m2
+    mova   Z(3), m1
+    subps    m4, m7, m3 ; i2
+    addps    m3, m3, m7 ; i0
+    mova   Z(5), m4
+    mova   Z(1), m3
+%endmacro
+
+; scheduled to avoid store->load aliasing
+%macro PASS_BIG 1 ; (!interleave)
+    mova     m4, Z(4) ; r2
+    mova     m5, Z(5) ; i2
+    mova     m0, [wq] ; wre
+    mova     m1, [wq+o1q] ; wim
+    mulps    m2, m4, m0 ; r2*wre
+    mova     m6, Z2(6) ; r3
+    mulps    m3, m5, m1 ; i2*wim
+    mova     m7, Z2(7) ; i3
+    mulps    m4, m4, m1 ; r2*wim
+    mulps    m5, m5, m0 ; i2*wre
+    addps    m2, m2, m3 ; r2*wre + i2*wim
+    mulps    m3, m1, m7 ; i3*wim
+    mulps    m1, m1, m6 ; r3*wim
+    subps    m5, m5, m4 ; i2*wre - r2*wim
+    mulps    m4, m0, m6 ; r3*wre
+    mulps    m0, m0, m7 ; i3*wre
+    subps    m4, m4, m3 ; r3*wre - i3*wim
+    mova     m3, Z(0)
+    addps    m0, m0, m1 ; i3*wre + r3*wim
+    subps    m1, m4, m2 ; t3
+    addps    m4, m4, m2 ; t5
+    subps    m3, m3, m4 ; r2
+    addps    m4, m4, Z(0) ; r0
+    mova     m6, Z(2)
+    mova   Z(4), m3
+    mova   Z(0), m4
+    subps    m3, m5, m0 ; t4
+    subps    m4, m6, m3 ; r3
+    addps    m3, m3, m6 ; r1
+IF%1 mova Z2(6), m4
+IF%1 mova  Z(2), m3
+    mova     m2, Z(3)
+    addps    m5, m5, m0 ; t6
+    subps    m2, m2, m1 ; i3
+    mova     m7, Z(1)
+    addps    m1, m1, Z(3) ; i1
+IF%1 mova Z2(7), m2
+IF%1 mova  Z(3), m1
+    subps    m6, m7, m5 ; i2
+    addps    m5, m5, m7 ; i0
+IF%1 mova  Z(5), m6
+IF%1 mova  Z(1), m5
+%if %1==0
+    INTERL m1, m3, m7, Z, 2
+    INTERL m2, m4, m0, Z2, 6
+
+    mova     m1, Z(0)
+    mova     m2, Z(4)
+
+    INTERL m5, m1, m3, Z, 0
+    INTERL m6, m2, m7, Z, 4
+%endif
+%endmacro
+
+%macro PUNPCK 3
+    mova      %3, %1
+    punpckldq %1, %2
+    punpckhdq %3, %2
+%endmacro
+
+%define Z(x) [r0+mmsize*x]
+%define Z2(x) [r0+mmsize*x]
+%define ZH(x) [r0+mmsize*x+mmsize/2]
+
+INIT_YMM avx
+
+%if HAVE_AVX_EXTERNAL
+align 16
+fft8_avx:
+    mova      m0, Z(0)
+    mova      m1, Z(1)
+    T8_AVX    m0, m1, m2, m3, m4
+    mova      Z(0), m0
+    mova      Z(1), m1
+    ret
+
+
+align 16
+fft16_avx:
+    mova       m2, Z(2)
+    mova       m3, Z(3)
+    T4_SSE     m2, m3, m7
+
+    mova       m0, Z(0)
+    mova       m1, Z(1)
+    T8_AVX     m0, m1, m4, m5, m7
+
+    mova       m4, [ps_cos16_1]
+    mova       m5, [ps_cos16_2]
+    vmulps     m6, m2, m4
+    vmulps     m7, m3, m5
+    vaddps     m7, m7, m6
+    vmulps     m2, m2, m5
+    vmulps     m3, m3, m4
+    vsubps     m3, m3, m2
+    vblendps   m2, m7, m3, 0xf0
+    vperm2f128 m3, m7, m3, 0x21
+    vaddps     m4, m2, m3
+    vsubps     m2, m3, m2
+    vperm2f128 m2, m2, m2, 0x01
+    vsubps     m3, m1, m2
+    vaddps     m1, m1, m2
+    vsubps     m5, m0, m4
+    vaddps     m0, m0, m4
+    vextractf128   Z(0), m0, 0
+    vextractf128  ZH(0), m1, 0
+    vextractf128   Z(1), m0, 1
+    vextractf128  ZH(1), m1, 1
+    vextractf128   Z(2), m5, 0
+    vextractf128  ZH(2), m3, 0
+    vextractf128   Z(3), m5, 1
+    vextractf128  ZH(3), m3, 1
+    ret
+
+align 16
+fft32_avx:
+    call fft16_avx
+
+    mova m0, Z(4)
+    mova m1, Z(5)
+
+    T4_SSE      m0, m1, m4
+
+    mova m2, Z(6)
+    mova m3, Z(7)
+
+    T8_SSE      m0, m1, m2, m3, m4, m6
+    ; m0={r0,r1,r2,r3,r8, r9, r10,r11} m1={i0,i1,i2,i3,i8, i9, i10,i11}
+    ; m2={r4,r5,r6,r7,r12,r13,r14,r15} m3={i4,i5,i6,i7,i12,i13,i14,i15}
+
+    vperm2f128  m4, m0, m2, 0x20
+    vperm2f128  m5, m1, m3, 0x20
+    vperm2f128  m6, m0, m2, 0x31
+    vperm2f128  m7, m1, m3, 0x31
+
+    PASS_SMALL 0, [cos_32], [cos_32+32]
+
+    ret
+
+fft32_interleave_avx:
+    call fft32_avx
+    mov r2d, 32
+.deint_loop:
+    mova     m2, Z(0)
+    mova     m3, Z(1)
+    vunpcklps      m0, m2, m3
+    vunpckhps      m1, m2, m3
+    vextractf128   Z(0), m0, 0
+    vextractf128  ZH(0), m1, 0
+    vextractf128   Z(1), m0, 1
+    vextractf128  ZH(1), m1, 1
+    add r0, mmsize*2
+    sub r2d, mmsize/4
+    jg .deint_loop
+    ret
+
+%endif
+
+INIT_XMM sse
+
+align 16
+fft4_avx:
+fft4_sse:
+    mova     m0, Z(0)
+    mova     m1, Z(1)
+    T4_SSE   m0, m1, m2
+    mova   Z(0), m0
+    mova   Z(1), m1
+    ret
+
+align 16
+fft8_sse:
+    mova     m0, Z(0)
+    mova     m1, Z(1)
+    T4_SSE   m0, m1, m2
+    mova     m2, Z(2)
+    mova     m3, Z(3)
+    T8_SSE   m0, m1, m2, m3, m4, m5
+    mova   Z(0), m0
+    mova   Z(1), m1
+    mova   Z(2), m2
+    mova   Z(3), m3
+    ret
+
+align 16
+fft16_sse:
+    mova     m0, Z(0)
+    mova     m1, Z(1)
+    T4_SSE   m0, m1, m2
+    mova     m2, Z(2)
+    mova     m3, Z(3)
+    T8_SSE   m0, m1, m2, m3, m4, m5
+    mova     m4, Z(4)
+    mova     m5, Z(5)
+    mova   Z(0), m0
+    mova   Z(1), m1
+    mova   Z(2), m2
+    mova   Z(3), m3
+    T4_SSE   m4, m5, m6
+    mova     m6, Z2(6)
+    mova     m7, Z2(7)
+    T4_SSE   m6, m7, m0
+    PASS_SMALL 0, [cos_16], [cos_16+16]
+    ret
+
+
+%macro FFT48_3DNOW 0
+align 16
+fft4 %+ SUFFIX:
+    T2_3DNOW m0, m1, Z(0), Z(1)
+    mova     m2, Z(2)
+    mova     m3, Z(3)
+    T4_3DNOW m0, m1, m2, m3, m4, m5
+    PUNPCK   m0, m1, m4
+    PUNPCK   m2, m3, m5
+    mova   Z(0), m0
+    mova   Z(1), m4
+    mova   Z(2), m2
+    mova   Z(3), m5
+    ret
+
+align 16
+fft8 %+ SUFFIX:
+    T2_3DNOW m0, m1, Z(0), Z(1)
+    mova     m2, Z(2)
+    mova     m3, Z(3)
+    T4_3DNOW m0, m1, m2, m3, m4, m5
+    mova   Z(0), m0
+    mova   Z(2), m2
+    T2_3DNOW m4, m5,  Z(4),  Z(5)
+    T2_3DNOW m6, m7, Z2(6), Z2(7)
+    PSWAPD   m0, m5
+    PSWAPD   m2, m7
+    pxor     m0, [ps_m1p1]
+    pxor     m2, [ps_m1p1]
+    pfsub    m5, m0
+    pfadd    m7, m2
+    pfmul    m5, [ps_root2]
+    pfmul    m7, [ps_root2]
+    T4_3DNOW m1, m3, m5, m7, m0, m2
+    mova   Z(5), m5
+    mova  Z2(7), m7
+    mova     m0, Z(0)
+    mova     m2, Z(2)
+    T4_3DNOW m0, m2, m4, m6, m5, m7
+    PUNPCK   m0, m1, m5
+    PUNPCK   m2, m3, m7
+    mova   Z(0), m0
+    mova   Z(1), m5
+    mova   Z(2), m2
+    mova   Z(3), m7
+    PUNPCK   m4,  Z(5), m5
+    PUNPCK   m6, Z2(7), m7
+    mova   Z(4), m4
+    mova   Z(5), m5
+    mova  Z2(6), m6
+    mova  Z2(7), m7
+    ret
+%endmacro
+
+%if ARCH_X86_32
+INIT_MMX 3dnowext
+FFT48_3DNOW
+
+INIT_MMX 3dnow
+FFT48_3DNOW
+%endif
+
+%define Z(x) [zcq + o1q*(x&6) + mmsize*(x&1)]
+%define Z2(x) [zcq + o3q + mmsize*(x&1)]
+%define ZH(x) [zcq + o1q*(x&6) + mmsize*(x&1) + mmsize/2]
+%define Z2H(x) [zcq + o3q + mmsize*(x&1) + mmsize/2]
+
+%macro DECL_PASS 2+ ; name, payload
+align 16
+%1:
+DEFINE_ARGS zc, w, n, o1, o3
+    lea o3q, [nq*3]
+    lea o1q, [nq*8]
+    shl o3q, 4
+.loop:
+    %2
+    add zcq, mmsize*2
+    add  wq, mmsize
+    sub  nd, mmsize/8
+    jg .loop
+    rep ret
+%endmacro
+
+%macro FFT_DISPATCH 2; clobbers 5 GPRs, 8 XMMs
+    lea r2, [dispatch_tab%1]
+    mov r2, [r2 + (%2q-2)*gprsize]
+%ifdef PIC
+    lea r3, [$$]
+    add r2, r3
+%endif
+    call r2
+%endmacro ; FFT_DISPATCH
+
+INIT_YMM avx
+
+%if HAVE_AVX_EXTERNAL
+DECL_PASS pass_avx, PASS_BIG 1
+DECL_PASS pass_interleave_avx, PASS_BIG 0
+
+cglobal fft_calc, 2,5,8
+    mov     r3d, [r0 + FFTContext.nbits]
+    mov     r0, r1
+    mov     r1, r3
+    FFT_DISPATCH _interleave %+ SUFFIX, r1
+    REP_RET
+
+%endif
+
+INIT_XMM sse
+
+DECL_PASS pass_sse, PASS_BIG 1
+DECL_PASS pass_interleave_sse, PASS_BIG 0
+
+%macro FFT_CALC_FUNC 0
+cglobal fft_calc, 2,5,8
+    mov     r3d, [r0 + FFTContext.nbits]
+    PUSH    r1
+    PUSH    r3
+    mov     r0, r1
+    mov     r1, r3
+    FFT_DISPATCH _interleave %+ SUFFIX, r1
+    POP     rcx
+    POP     r4
+    cmp     rcx, 3+(mmsize/16)
+    jg      .end
+    mov     r2, -1
+    add     rcx, 3
+    shl     r2, cl
+    sub     r4, r2
+.loop:
+%if mmsize == 8
+    PSWAPD  m0, [r4 + r2 + 4]
+    mova [r4 + r2 + 4], m0
+%else
+    movaps   xmm0, [r4 + r2]
+    movaps   xmm1, xmm0
+    unpcklps xmm0, [r4 + r2 + 16]
+    unpckhps xmm1, [r4 + r2 + 16]
+    movaps   [r4 + r2],      xmm0
+    movaps   [r4 + r2 + 16], xmm1
+%endif
+    add      r2, mmsize*2
+    jl       .loop
+.end:
+%if cpuflag(3dnow)
+    femms
+    RET
+%else
+    REP_RET
+%endif
+%endmacro
+
+%if ARCH_X86_32
+INIT_MMX 3dnow
+FFT_CALC_FUNC
+INIT_MMX 3dnowext
+FFT_CALC_FUNC
+%endif
+INIT_XMM sse
+FFT_CALC_FUNC
+
+cglobal fft_permute, 2,7,1
+    mov     r4,  [r0 + FFTContext.revtab]
+    mov     r5,  [r0 + FFTContext.tmpbuf]
+    mov     ecx, [r0 + FFTContext.nbits]
+    mov     r2, 1
+    shl     r2, cl
+    xor     r0, r0
+%if ARCH_X86_32
+    mov     r1, r1m
+%endif
+.loop:
+    movaps  xmm0, [r1 + 8*r0]
+    movzx   r6, word [r4 + 2*r0]
+    movzx   r3, word [r4 + 2*r0 + 2]
+    movlps  [r5 + 8*r6], xmm0
+    movhps  [r5 + 8*r3], xmm0
+    add     r0, 2
+    cmp     r0, r2
+    jl      .loop
+    shl     r2, 3
+    add     r1, r2
+    add     r5, r2
+    neg     r2
+; nbits >= 2 (FFT4) and sizeof(FFTComplex)=8 => at least 32B
+.loopcopy:
+    movaps  xmm0, [r5 + r2]
+    movaps  xmm1, [r5 + r2 + 16]
+    movaps  [r1 + r2], xmm0
+    movaps  [r1 + r2 + 16], xmm1
+    add     r2, 32
+    jl      .loopcopy
+    REP_RET
+
+%macro IMDCT_CALC_FUNC 0
+cglobal imdct_calc, 3,5,3
+    mov     r3d, [r0 + FFTContext.mdctsize]
+    mov     r4,  [r0 + FFTContext.imdcthalf]
+    add     r1,  r3
+    PUSH    r3
+    PUSH    r1
+%if ARCH_X86_32
+    push    r2
+    push    r1
+    push    r0
+%else
+    sub     rsp, 8+32*WIN64 ; allocate win64 shadow space
+%endif
+    call    r4
+%if ARCH_X86_32
+    add     esp, 12
+%else
+    add     rsp, 8+32*WIN64
+%endif
+    POP     r1
+    POP     r3
+    lea     r0, [r1 + 2*r3]
+    mov     r2, r3
+    sub     r3, mmsize
+    neg     r2
+    mova    m2, [ps_neg]
+.loop:
+%if mmsize == 8
+    PSWAPD  m0, [r1 + r3]
+    PSWAPD  m1, [r0 + r2]
+    pxor    m0, m2
+%else
+    mova    m0, [r1 + r3]
+    mova    m1, [r0 + r2]
+    shufps  m0, m0, 0x1b
+    shufps  m1, m1, 0x1b
+    xorps   m0, m2
+%endif
+    mova [r0 + r3], m1
+    mova [r1 + r2], m0
+    sub     r3, mmsize
+    add     r2, mmsize
+    jl      .loop
+%if cpuflag(3dnow)
+    femms
+    RET
+%else
+    REP_RET
+%endif
+%endmacro
+
+%if ARCH_X86_32
+INIT_MMX 3dnow
+IMDCT_CALC_FUNC
+INIT_MMX 3dnowext
+IMDCT_CALC_FUNC
+%endif
+
+INIT_XMM sse
+IMDCT_CALC_FUNC
+
+%if ARCH_X86_32
+INIT_MMX 3dnow
+%define mulps pfmul
+%define addps pfadd
+%define subps pfsub
+%define unpcklps punpckldq
+%define unpckhps punpckhdq
+DECL_PASS pass_3dnow, PASS_SMALL 1, [wq], [wq+o1q]
+DECL_PASS pass_interleave_3dnow, PASS_BIG 0
+%define pass_3dnowext pass_3dnow
+%define pass_interleave_3dnowext pass_interleave_3dnow
+%endif
+
+%ifdef PIC
+%define SECTION_REL - $$
+%else
+%define SECTION_REL
+%endif
+
+%macro DECL_FFT 1-2 ; nbits, suffix
+%ifidn %0, 1
+%xdefine fullsuffix SUFFIX
+%else
+%xdefine fullsuffix %2 %+ SUFFIX
+%endif
+%xdefine list_of_fft fft4 %+ SUFFIX SECTION_REL, fft8 %+ SUFFIX SECTION_REL
+%if %1>=5
+%xdefine list_of_fft list_of_fft, fft16 %+ SUFFIX SECTION_REL
+%endif
+%if %1>=6
+%xdefine list_of_fft list_of_fft, fft32 %+ fullsuffix SECTION_REL
+%endif
+
+%assign n 1<<%1
+%rep 18-%1
+%assign n2 n/2
+%assign n4 n/4
+%xdefine list_of_fft list_of_fft, fft %+ n %+ fullsuffix SECTION_REL
+
+align 16
+fft %+ n %+ fullsuffix:
+    call fft %+ n2 %+ SUFFIX
+    add r0, n*4 - (n&(-2<<%1))
+    call fft %+ n4 %+ SUFFIX
+    add r0, n*2 - (n2&(-2<<%1))
+    call fft %+ n4 %+ SUFFIX
+    sub r0, n*6 + (n2&(-2<<%1))
+    lea r1, [cos_ %+ n]
+    mov r2d, n4/2
+    jmp pass %+ fullsuffix
+
+%assign n n*2
+%endrep
+%undef n
+
+align 8
+dispatch_tab %+ fullsuffix: pointer list_of_fft
+%endmacro ; DECL_FFT
+
+%if HAVE_AVX_EXTERNAL
+INIT_YMM avx
+DECL_FFT 6
+DECL_FFT 6, _interleave
+%endif
+INIT_XMM sse
+DECL_FFT 5
+DECL_FFT 5, _interleave
+%if ARCH_X86_32
+INIT_MMX 3dnow
+DECL_FFT 4
+DECL_FFT 4, _interleave
+INIT_MMX 3dnowext
+DECL_FFT 4
+DECL_FFT 4, _interleave
+%endif
+
+INIT_XMM sse
+%undef mulps
+%undef addps
+%undef subps
+%undef unpcklps
+%undef unpckhps
+
+%macro PREROTATER 5 ;-2*k, 2*k, input+n4, tcos+n8, tsin+n8
+%if mmsize == 8 ; j*2+2-n4, n4-2-j*2, input+n4, tcos+n8, tsin+n8
+    PSWAPD     m0, [%3+%2*4]
+    movq       m2, [%3+%1*4-8]
+    movq       m3, m0
+    punpckldq  m0, m2
+    punpckhdq  m2, m3
+    movd       m1, [%4+%1*2-4] ; tcos[j]
+    movd       m3, [%4+%2*2]   ; tcos[n4-j-1]
+    punpckldq  m1, [%5+%1*2-4] ; tsin[j]
+    punpckldq  m3, [%5+%2*2]   ; tsin[n4-j-1]
+
+    mova       m4, m0
+    PSWAPD     m5, m1
+    pfmul      m0, m1
+    pfmul      m4, m5
+    mova       m6, m2
+    PSWAPD     m5, m3
+    pfmul      m2, m3
+    pfmul      m6, m5
+%if cpuflag(3dnowext)
+    pfpnacc    m0, m4
+    pfpnacc    m2, m6
+%else
+    SBUTTERFLY dq, 0, 4, 1
+    SBUTTERFLY dq, 2, 6, 3
+    pxor       m4, m7
+    pxor       m6, m7
+    pfadd      m0, m4
+    pfadd      m2, m6
+%endif
+%else
+    movaps   xmm0, [%3+%2*4]
+    movaps   xmm1, [%3+%1*4-0x10]
+    movaps   xmm2, xmm0
+    shufps   xmm0, xmm1, 0x88
+    shufps   xmm1, xmm2, 0x77
+    movlps   xmm4, [%4+%2*2]
+    movlps   xmm5, [%5+%2*2+0x0]
+    movhps   xmm4, [%4+%1*2-0x8]
+    movhps   xmm5, [%5+%1*2-0x8]
+    movaps   xmm2, xmm0
+    movaps   xmm3, xmm1
+    mulps    xmm0, xmm5
+    mulps    xmm1, xmm4
+    mulps    xmm2, xmm4
+    mulps    xmm3, xmm5
+    subps    xmm1, xmm0
+    addps    xmm2, xmm3
+    movaps   xmm0, xmm1
+    unpcklps xmm1, xmm2
+    unpckhps xmm0, xmm2
+%endif
+%endmacro
+
+%macro CMUL 6 ;j, xmm0, xmm1, 3, 4, 5
+%if cpuflag(sse)
+    mulps      m6, %3, [%5+%1]
+    mulps      m7, %2, [%5+%1]
+    mulps      %2, %2, [%6+%1]
+    mulps      %3, %3, [%6+%1]
+    subps      %2, %2, m6
+    addps      %3, %3, m7
+%elif cpuflag(3dnow)
+    mova       m6, [%1+%2*2]
+    mova       %3, [%1+%2*2+8]
+    mova       %4, m6
+    mova       m7, %3
+    pfmul      m6, [%5+%2]
+    pfmul      %3, [%6+%2]
+    pfmul      %4, [%6+%2]
+    pfmul      m7, [%5+%2]
+    pfsub      %3, m6
+    pfadd      %4, m7
+%endif
+%endmacro
+
+%macro POSROTATESHUF 5 ;j, k, z+n8, tcos+n8, tsin+n8
+.post:
+%if cpuflag(avx)
+    vmovaps      ymm1,   [%3+%1*2]
+    vmovaps      ymm0,   [%3+%1*2+0x20]
+    vmovaps      ymm3,   [%3+%2*2]
+    vmovaps      ymm2,   [%3+%2*2+0x20]
+
+    CMUL         %1, ymm0, ymm1, %3, %4, %5
+    CMUL         %2, ymm2, ymm3, %3, %4, %5
+    vshufps      ymm1, ymm1, ymm1, 0x1b
+    vshufps      ymm3, ymm3, ymm3, 0x1b
+    vperm2f128   ymm1, ymm1, ymm1, 0x01
+    vperm2f128   ymm3, ymm3, ymm3, 0x01
+    vunpcklps    ymm6, ymm2, ymm1
+    vunpckhps    ymm4, ymm2, ymm1
+    vunpcklps    ymm7, ymm0, ymm3
+    vunpckhps    ymm5, ymm0, ymm3
+
+    vextractf128 [%3+%1*2],      ymm7, 0
+    vextractf128 [%3+%1*2+0x10], ymm5, 0
+    vextractf128 [%3+%1*2+0x20], ymm7, 1
+    vextractf128 [%3+%1*2+0x30], ymm5, 1
+
+    vextractf128 [%3+%2*2],      ymm6, 0
+    vextractf128 [%3+%2*2+0x10], ymm4, 0
+    vextractf128 [%3+%2*2+0x20], ymm6, 1
+    vextractf128 [%3+%2*2+0x30], ymm4, 1
+    sub      %2,   0x20
+    add      %1,   0x20
+    jl       .post
+%elif cpuflag(sse)
+    movaps   xmm1, [%3+%1*2]
+    movaps   xmm0, [%3+%1*2+0x10]
+    CMUL     %1,   xmm0, xmm1, %3, %4, %5
+    movaps   xmm5, [%3+%2*2]
+    movaps   xmm4, [%3+%2*2+0x10]
+    CMUL     %2,   xmm4, xmm5, %3, %4, %5
+    shufps   xmm1, xmm1, 0x1b
+    shufps   xmm5, xmm5, 0x1b
+    movaps   xmm6, xmm4
+    unpckhps xmm4, xmm1
+    unpcklps xmm6, xmm1
+    movaps   xmm2, xmm0
+    unpcklps xmm0, xmm5
+    unpckhps xmm2, xmm5
+    movaps   [%3+%2*2],      xmm6
+    movaps   [%3+%2*2+0x10], xmm4
+    movaps   [%3+%1*2],      xmm0
+    movaps   [%3+%1*2+0x10], xmm2
+    sub      %2,   0x10
+    add      %1,   0x10
+    jl       .post
+%elif cpuflag(3dnow)
+    CMUL  %3, %1, m0, m1, %4, %5
+    CMUL  %3, %2, m2, m3, %4, %5
+    movd  [%3+%1*2+ 0], m0
+    movd  [%3+%2*2+12], m1
+    movd  [%3+%2*2+ 0], m2
+    movd  [%3+%1*2+12], m3
+    psrlq      m0, 32
+    psrlq      m1, 32
+    psrlq      m2, 32
+    psrlq      m3, 32
+    movd  [%3+%1*2+ 8], m0
+    movd  [%3+%2*2+ 4], m1
+    movd  [%3+%2*2+ 8], m2
+    movd  [%3+%1*2+ 4], m3
+    sub        %2, 8
+    add        %1, 8
+    jl         .post
+%endif
+%endmacro
+
+%macro DECL_IMDCT 0
+cglobal imdct_half, 3,12,8; FFTContext *s, FFTSample *output, const FFTSample *input
+%if ARCH_X86_64
+%define rrevtab r7
+%define rtcos   r8
+%define rtsin   r9
+%else
+%define rrevtab r6
+%define rtsin   r6
+%define rtcos   r5
+%endif
+    mov   r3d, [r0+FFTContext.mdctsize]
+    add   r2, r3
+    shr   r3, 1
+    mov   rtcos, [r0+FFTContext.tcos]
+    mov   rtsin, [r0+FFTContext.tsin]
+    add   rtcos, r3
+    add   rtsin, r3
+%if ARCH_X86_64 == 0
+    push  rtcos
+    push  rtsin
+%endif
+    shr   r3, 1
+    mov   rrevtab, [r0+FFTContext.revtab]
+    add   rrevtab, r3
+%if ARCH_X86_64 == 0
+    push  rrevtab
+%endif
+
+%if mmsize == 8
+    sub   r3, 2
+%else
+    sub   r3, 4
+%endif
+%if ARCH_X86_64 || mmsize == 8
+    xor   r4, r4
+    sub   r4, r3
+%endif
+%if notcpuflag(3dnowext) && mmsize == 8
+    movd  m7, [ps_neg]
+%endif
+.pre:
+%if ARCH_X86_64 == 0
+;unspill
+%if mmsize != 8
+    xor   r4, r4
+    sub   r4, r3
+%endif
+    mov   rtcos, [esp+8]
+    mov   rtsin, [esp+4]
+%endif
+
+    PREROTATER r4, r3, r2, rtcos, rtsin
+%if mmsize == 8
+    mov    r6, [esp]                ; rrevtab = ptr+n8
+    movzx  r5,  word [rrevtab+r4-2] ; rrevtab[j]
+    movzx  r6,  word [rrevtab+r3]   ; rrevtab[n4-j-1]
+    mova [r1+r5*8], m0
+    mova [r1+r6*8], m2
+    add    r4, 2
+    sub    r3, 2
+%else
+%if ARCH_X86_64
+    movzx  r5,  word [rrevtab+r4-4]
+    movzx  r6,  word [rrevtab+r4-2]
+    movzx  r10, word [rrevtab+r3]
+    movzx  r11, word [rrevtab+r3+2]
+    movlps [r1+r5 *8], xmm0
+    movhps [r1+r6 *8], xmm0
+    movlps [r1+r10*8], xmm1
+    movhps [r1+r11*8], xmm1
+    add    r4, 4
+%else
+    mov    r6, [esp]
+    movzx  r5, word [r6+r4-4]
+    movzx  r4, word [r6+r4-2]
+    movlps [r1+r5*8], xmm0
+    movhps [r1+r4*8], xmm0
+    movzx  r5, word [r6+r3]
+    movzx  r4, word [r6+r3+2]
+    movlps [r1+r5*8], xmm1
+    movhps [r1+r4*8], xmm1
+%endif
+    sub    r3, 4
+%endif
+    jns    .pre
+
+    mov  r5, r0
+    mov  r6, r1
+    mov  r0, r1
+    mov  r1d, [r5+FFTContext.nbits]
+
+    FFT_DISPATCH SUFFIX, r1
+
+    mov  r0d, [r5+FFTContext.mdctsize]
+    add  r6, r0
+    shr  r0, 1
+%if ARCH_X86_64 == 0
+%define rtcos r2
+%define rtsin r3
+    mov  rtcos, [esp+8]
+    mov  rtsin, [esp+4]
+%endif
+    neg  r0
+    mov  r1, -mmsize
+    sub  r1, r0
+    POSROTATESHUF r0, r1, r6, rtcos, rtsin
+%if ARCH_X86_64 == 0
+    add esp, 12
+%endif
+%if mmsize == 8
+    femms
+%endif
+    RET
+%endmacro
+
+DECL_IMDCT
+
+%if ARCH_X86_32
+INIT_MMX 3dnow
+DECL_IMDCT
+
+INIT_MMX 3dnowext
+DECL_IMDCT
+%endif
+
+INIT_YMM avx
+
+%if HAVE_AVX_EXTERNAL
+DECL_IMDCT
+%endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fft.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fft.h
new file mode 100644
index 000000000..398091eb1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fft.h
@@ -0,0 +1,38 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_FFT_H
+#define AVCODEC_X86_FFT_H
+
+#include "libavcodec/fft.h"
+
+void ff_fft_permute_sse(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_avx(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_3dnow(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_3dnowext(FFTContext *s, FFTComplex *z);
+
+void ff_imdct_calc_3dnow(FFTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_half_3dnow(FFTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_calc_3dnowext(FFTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_half_3dnowext(FFTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_calc_sse(FFTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_half_sse(FFTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_half_avx(FFTContext *s, FFTSample *output, const FFTSample *input);
+
+#endif /* AVCODEC_X86_FFT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fft_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fft_init.c
new file mode 100644
index 000000000..928f1dcda
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fft_init.c
@@ -0,0 +1,61 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+
+#include "fft.h"
+
+av_cold void ff_fft_init_x86(FFTContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (s->nbits > 16)
+        return;
+
+#if ARCH_X86_32
+    if (EXTERNAL_AMD3DNOW(cpu_flags)) {
+        s->imdct_calc = ff_imdct_calc_3dnow;
+        s->imdct_half = ff_imdct_half_3dnow;
+        s->fft_calc   = ff_fft_calc_3dnow;
+    }
+
+    if (EXTERNAL_AMD3DNOWEXT(cpu_flags)) {
+        s->imdct_calc = ff_imdct_calc_3dnowext;
+        s->imdct_half = ff_imdct_half_3dnowext;
+        s->fft_calc   = ff_fft_calc_3dnowext;
+    }
+#endif /* ARCH_X86_32 */
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        s->imdct_calc  = ff_imdct_calc_sse;
+        s->imdct_half  = ff_imdct_half_sse;
+        s->fft_permute = ff_fft_permute_sse;
+        s->fft_calc    = ff_fft_calc_sse;
+        s->fft_permutation = FF_FFT_PERM_SWAP_LSBS;
+    }
+
+    if (EXTERNAL_AVX_FAST(cpu_flags) && s->nbits >= 5) {
+        s->imdct_half      = ff_imdct_half_avx;
+        s->fft_calc        = ff_fft_calc_avx;
+        s->fft_permutation = FF_FFT_PERM_AVX;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/flacdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/flacdsp_init.c
new file mode 100644
index 000000000..1971f81b8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/flacdsp_init.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2014 James Almer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavcodec/flacdsp.h"
+#include "libavutil/x86/cpu.h"
+#include "config.h"
+
+void ff_flac_lpc_32_sse4(int32_t *samples, const int coeffs[32], int order,
+                         int qlevel, int len);
+void ff_flac_lpc_32_xop(int32_t *samples, const int coeffs[32], int order,
+                        int qlevel, int len);
+
+void ff_flac_enc_lpc_16_sse4(int32_t *, const int32_t *, int, int, const int32_t *,int);
+
+#define DECORRELATE_FUNCS(fmt, opt)                                                      \
+void ff_flac_decorrelate_ls_##fmt##_##opt(uint8_t **out, int32_t **in, int channels,     \
+                                          int len, int shift);                           \
+void ff_flac_decorrelate_rs_##fmt##_##opt(uint8_t **out, int32_t **in, int channels,     \
+                                          int len, int shift);                           \
+void ff_flac_decorrelate_ms_##fmt##_##opt(uint8_t **out, int32_t **in, int channels,     \
+                                          int len, int shift);                           \
+void ff_flac_decorrelate_indep2_##fmt##_##opt(uint8_t **out, int32_t **in, int channels, \
+                                             int len, int shift);                        \
+void ff_flac_decorrelate_indep4_##fmt##_##opt(uint8_t **out, int32_t **in, int channels, \
+                                              int len, int shift);                       \
+void ff_flac_decorrelate_indep6_##fmt##_##opt(uint8_t **out, int32_t **in, int channels, \
+                                              int len, int shift);                       \
+void ff_flac_decorrelate_indep8_##fmt##_##opt(uint8_t **out, int32_t **in, int channels, \
+                                              int len, int shift)
+
+DECORRELATE_FUNCS(16, sse2);
+DECORRELATE_FUNCS(16,  avx);
+DECORRELATE_FUNCS(32, sse2);
+DECORRELATE_FUNCS(32,  avx);
+
+av_cold void ff_flacdsp_init_x86(FLACDSPContext *c, enum AVSampleFormat fmt, int channels,
+                                 int bps)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+#if CONFIG_FLAC_DECODER
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        if (fmt == AV_SAMPLE_FMT_S16) {
+            if (channels == 2)
+                c->decorrelate[0] = ff_flac_decorrelate_indep2_16_sse2;
+            else if (channels == 4)
+                c->decorrelate[0] = ff_flac_decorrelate_indep4_16_sse2;
+            else if (channels == 6)
+                c->decorrelate[0] = ff_flac_decorrelate_indep6_16_sse2;
+            else if (ARCH_X86_64 && channels == 8)
+                c->decorrelate[0] = ff_flac_decorrelate_indep8_16_sse2;
+            c->decorrelate[1] = ff_flac_decorrelate_ls_16_sse2;
+            c->decorrelate[2] = ff_flac_decorrelate_rs_16_sse2;
+            c->decorrelate[3] = ff_flac_decorrelate_ms_16_sse2;
+        } else if (fmt == AV_SAMPLE_FMT_S32) {
+            if (channels == 2)
+                c->decorrelate[0] = ff_flac_decorrelate_indep2_32_sse2;
+            else if (channels == 4)
+                c->decorrelate[0] = ff_flac_decorrelate_indep4_32_sse2;
+            else if (channels == 6)
+                c->decorrelate[0] = ff_flac_decorrelate_indep6_32_sse2;
+            else if (ARCH_X86_64 && channels == 8)
+                c->decorrelate[0] = ff_flac_decorrelate_indep8_32_sse2;
+            c->decorrelate[1] = ff_flac_decorrelate_ls_32_sse2;
+            c->decorrelate[2] = ff_flac_decorrelate_rs_32_sse2;
+            c->decorrelate[3] = ff_flac_decorrelate_ms_32_sse2;
+        }
+    }
+    if (EXTERNAL_SSE4(cpu_flags)) {
+        c->lpc32 = ff_flac_lpc_32_sse4;
+    }
+    if (EXTERNAL_AVX(cpu_flags)) {
+        if (fmt == AV_SAMPLE_FMT_S16) {
+            if (ARCH_X86_64 && channels == 8)
+                c->decorrelate[0] = ff_flac_decorrelate_indep8_16_avx;
+        } else if (fmt == AV_SAMPLE_FMT_S32) {
+            if (channels == 4)
+                c->decorrelate[0] = ff_flac_decorrelate_indep4_32_avx;
+            else if (channels == 6)
+                c->decorrelate[0] = ff_flac_decorrelate_indep6_32_avx;
+            else if (ARCH_X86_64 && channels == 8)
+                c->decorrelate[0] = ff_flac_decorrelate_indep8_32_avx;
+        }
+    }
+    if (EXTERNAL_XOP(cpu_flags)) {
+        c->lpc32 = ff_flac_lpc_32_xop;
+    }
+#endif
+
+#if CONFIG_FLAC_ENCODER
+    if (EXTERNAL_SSE4(cpu_flags)) {
+        if (CONFIG_GPL)
+            c->lpc16_encode = ff_flac_enc_lpc_16_sse4;
+    }
+#endif
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fmtconvert_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fmtconvert_init.c
new file mode 100644
index 000000000..df097054e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fmtconvert_init.c
@@ -0,0 +1,55 @@
+/*
+ * Format Conversion Utils
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/fmtconvert.h"
+
+#if HAVE_X86ASM
+
+void ff_int32_to_float_fmul_scalar_sse (float *dst, const int32_t *src, float mul, int len);
+void ff_int32_to_float_fmul_scalar_sse2(float *dst, const int32_t *src, float mul, int len);
+void ff_int32_to_float_fmul_array8_sse (FmtConvertContext *c, float *dst, const int32_t *src,
+                                        const float *mul, int len);
+void ff_int32_to_float_fmul_array8_sse2(FmtConvertContext *c, float *dst, const int32_t *src,
+                                        const float *mul, int len);
+
+#endif /* HAVE_X86ASM */
+
+av_cold void ff_fmt_convert_init_x86(FmtConvertContext *c, AVCodecContext *avctx)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_sse;
+        c->int32_to_float_fmul_array8 = ff_int32_to_float_fmul_array8_sse;
+    }
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_sse2;
+        c->int32_to_float_fmul_array8 = ff_int32_to_float_fmul_array8_sse2;
+    }
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fpel.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fpel.h
new file mode 100644
index 000000000..4e83cf71c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/fpel.h
@@ -0,0 +1,49 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_FPEL_H
+#define AVCODEC_X86_FPEL_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+void ff_avg_pixels4_mmx(uint8_t *block, const uint8_t *pixels,
+                        ptrdiff_t line_size, int h);
+void ff_avg_pixels4_mmxext(uint8_t *block, const uint8_t *pixels,
+                           ptrdiff_t line_size, int h);
+void ff_avg_pixels8_mmx(uint8_t *block, const uint8_t *pixels,
+                        ptrdiff_t line_size, int h);
+void ff_avg_pixels8_mmxext(uint8_t *block, const uint8_t *pixels,
+                           ptrdiff_t line_size, int h);
+void ff_avg_pixels16_mmx(uint8_t *block, const uint8_t *pixels,
+                         ptrdiff_t line_size, int h);
+void ff_avg_pixels16_mmxext(uint8_t *block, const uint8_t *pixels,
+                            ptrdiff_t line_size, int h);
+void ff_avg_pixels16_sse2(uint8_t *block, const uint8_t *pixels,
+                          ptrdiff_t line_size, int h);
+void ff_put_pixels4_mmx(uint8_t *block, const uint8_t *pixels,
+                        ptrdiff_t line_size, int h);
+void ff_put_pixels8_mmx(uint8_t *block, const uint8_t *pixels,
+                        ptrdiff_t line_size, int h);
+void ff_put_pixels16_mmx(uint8_t *block, const uint8_t *pixels,
+                         ptrdiff_t line_size, int h);
+void ff_put_pixels16_sse2(uint8_t *block, const uint8_t *pixels,
+                          ptrdiff_t line_size, int h);
+
+
+#endif /* AVCODEC_X86_FPEL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/g722dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/g722dsp_init.c
new file mode 100644
index 000000000..614695193
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/g722dsp_init.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2014 James Almer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/g722dsp.h"
+
+void ff_g722_apply_qmf_sse2(const int16_t *prev_samples, int xout[2]);
+
+av_cold void ff_g722dsp_init_x86(G722DSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE2(cpu_flags))
+        dsp->apply_qmf = ff_g722_apply_qmf_sse2;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h263dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h263dsp_init.c
new file mode 100644
index 000000000..ab8106323
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h263dsp_init.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2013 Diego Biurrun <diego@biurrun.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/h263dsp.h"
+
+void ff_h263_h_loop_filter_mmx(uint8_t *src, int stride, int qscale);
+void ff_h263_v_loop_filter_mmx(uint8_t *src, int stride, int qscale);
+
+av_cold void ff_h263dsp_init_x86(H263DSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->h263_h_loop_filter = ff_h263_h_loop_filter_mmx;
+        c->h263_v_loop_filter = ff_h263_v_loop_filter_mmx;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264_cabac.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264_cabac.c
new file mode 100644
index 000000000..2edc6d7e7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264_cabac.c
@@ -0,0 +1,208 @@
+/*
+ * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
+ * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * H.264 / AVC / MPEG-4 part10 codec.
+ * non-SIMD x86-specific optimizations for H.264
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include <stddef.h>
+
+#include "libavcodec/cabac.h"
+#include "cabac.h"
+
+#if HAVE_INLINE_ASM
+
+#if ARCH_X86_64
+#define REG64 "r"
+#else
+#define REG64 "m"
+#endif
+
+//FIXME use some macros to avoid duplicating get_cabac (cannot be done yet
+//as that would make optimization work hard)
+#if HAVE_7REGS && !BROKEN_COMPILER
+#define decode_significance decode_significance_x86
+static int decode_significance_x86(CABACContext *c, int max_coeff,
+                                   uint8_t *significant_coeff_ctx_base,
+                                   int *index, x86_reg last_off){
+    void *end= significant_coeff_ctx_base + max_coeff - 1;
+    int minusstart= -(intptr_t)significant_coeff_ctx_base;
+    int minusindex= 4-(intptr_t)index;
+    int bit;
+    x86_reg coeff_count;
+
+#ifdef BROKEN_RELOCATIONS
+    void *tables;
+
+    __asm__ volatile(
+        "lea   "MANGLE(ff_h264_cabac_tables)", %0      \n\t"
+        : "=&r"(tables)
+        : NAMED_CONSTRAINTS_ARRAY(ff_h264_cabac_tables)
+    );
+#endif
+
+    __asm__ volatile(
+        "3:                                     \n\t"
+
+        BRANCHLESS_GET_CABAC("%4", "%q4", "(%1)", "%3", "%w3",
+                             "%5", "%q5", "%k0", "%b0",
+                             "%c11(%6)", "%c12(%6)",
+                             AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
+                             AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
+                             AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
+                             "%13")
+
+        "test $1, %4                            \n\t"
+        " jz 4f                                 \n\t"
+        "add  %10, %1                           \n\t"
+
+        BRANCHLESS_GET_CABAC("%4", "%q4", "(%1)", "%3", "%w3",
+                             "%5", "%q5", "%k0", "%b0",
+                             "%c11(%6)", "%c12(%6)",
+                             AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
+                             AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
+                             AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
+                             "%13")
+
+        "sub  %10, %1                           \n\t"
+        "mov  %2, %0                            \n\t"
+        "movl %7, %%ecx                         \n\t"
+        "add  %1, %%"FF_REG_c"                  \n\t"
+        "movl %%ecx, (%0)                       \n\t"
+
+        "test $1, %4                            \n\t"
+        " jnz 5f                                \n\t"
+
+        "add"FF_OPSIZE"  $4, %2                 \n\t"
+
+        "4:                                     \n\t"
+        "add  $1, %1                            \n\t"
+        "cmp  %8, %1                            \n\t"
+        " jb 3b                                 \n\t"
+        "mov  %2, %0                            \n\t"
+        "movl %7, %%ecx                         \n\t"
+        "add  %1, %%"FF_REG_c"                  \n\t"
+        "movl %%ecx, (%0)                       \n\t"
+        "5:                                     \n\t"
+        "add  %9, %k0                           \n\t"
+        "shr $2, %k0                            \n\t"
+        : "=&q"(coeff_count), "+r"(significant_coeff_ctx_base), "+m"(index),
+          "+&r"(c->low), "=&r"(bit), "+&r"(c->range)
+        : "r"(c), "m"(minusstart), "m"(end), "m"(minusindex), "m"(last_off),
+          "i"(offsetof(CABACContext, bytestream)),
+          "i"(offsetof(CABACContext, bytestream_end))
+          TABLES_ARG
+        : "%"FF_REG_c, "memory"
+    );
+    return coeff_count;
+}
+
+#define decode_significance_8x8 decode_significance_8x8_x86
+static int decode_significance_8x8_x86(CABACContext *c,
+                                       uint8_t *significant_coeff_ctx_base,
+                                       int *index, uint8_t *last_coeff_ctx_base, const uint8_t *sig_off){
+    int minusindex= 4-(intptr_t)index;
+    int bit;
+    x86_reg coeff_count;
+    x86_reg last=0;
+    x86_reg state;
+
+#ifdef BROKEN_RELOCATIONS
+    void *tables;
+
+    __asm__ volatile(
+        "lea    "MANGLE(ff_h264_cabac_tables)", %0      \n\t"
+        : "=&r"(tables)
+        : NAMED_CONSTRAINTS_ARRAY(ff_h264_cabac_tables)
+    );
+#endif
+
+    __asm__ volatile(
+        "mov %1, %6                             \n\t"
+        "3:                                     \n\t"
+
+        "mov %10, %0                            \n\t"
+        "movzb (%0, %6), %6                     \n\t"
+        "add %9, %6                             \n\t"
+
+        BRANCHLESS_GET_CABAC("%4", "%q4", "(%6)", "%3", "%w3",
+                             "%5", "%q5", "%k0", "%b0",
+                             "%c12(%7)", "%c13(%7)",
+                             AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
+                             AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
+                             AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
+                             "%15")
+
+        "mov %1, %6                             \n\t"
+        "test $1, %4                            \n\t"
+        " jz 4f                                 \n\t"
+
+#ifdef BROKEN_RELOCATIONS
+        "movzb %c14(%15, %q6), %6\n\t"
+#else
+        "movzb "MANGLE(ff_h264_cabac_tables)"+%c14(%6), %6\n\t"
+#endif
+        "add %11, %6                            \n\t"
+
+        BRANCHLESS_GET_CABAC("%4", "%q4", "(%6)", "%3", "%w3",
+                             "%5", "%q5", "%k0", "%b0",
+                             "%c12(%7)", "%c13(%7)",
+                             AV_STRINGIFY(H264_NORM_SHIFT_OFFSET),
+                             AV_STRINGIFY(H264_LPS_RANGE_OFFSET),
+                             AV_STRINGIFY(H264_MLPS_STATE_OFFSET),
+                             "%15")
+
+        "mov %2, %0                             \n\t"
+        "mov %1, %6                             \n\t"
+        "mov %k6, (%0)                          \n\t"
+
+        "test $1, %4                            \n\t"
+        " jnz 5f                                \n\t"
+
+        "add"FF_OPSIZE"  $4, %2                 \n\t"
+
+        "4:                                     \n\t"
+        "add $1, %6                             \n\t"
+        "mov %6, %1                             \n\t"
+        "cmp $63, %6                            \n\t"
+        " jb 3b                                 \n\t"
+        "mov %2, %0                             \n\t"
+        "mov %k6, (%0)                          \n\t"
+        "5:                                     \n\t"
+        "addl %8, %k0                           \n\t"
+        "shr $2, %k0                            \n\t"
+        : "=&q"(coeff_count), "+"REG64(last), "+"REG64(index), "+&r"(c->low),
+          "=&r"(bit), "+&r"(c->range), "=&r"(state)
+        : "r"(c), "m"(minusindex), "m"(significant_coeff_ctx_base),
+          REG64(sig_off), REG64(last_coeff_ctx_base),
+          "i"(offsetof(CABACContext, bytestream)),
+          "i"(offsetof(CABACContext, bytestream_end)),
+          "i"(H264_LAST_COEFF_FLAG_OFFSET_8x8_OFFSET) TABLES_ARG
+        : "%"FF_REG_c, "memory"
+    );
+    return coeff_count;
+}
+#endif /* HAVE_7REGS && BROKEN_COMPILER */
+
+#endif /* HAVE_INLINE_ASM */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264_intrapred_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264_intrapred_init.c
new file mode 100644
index 000000000..bdd5125d6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264_intrapred_init.c
@@ -0,0 +1,410 @@
+/*
+ * Copyright (c) 2010 Fiona Glaser <fiona@x264.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/h264pred.h"
+
+#define PRED4x4(TYPE, DEPTH, OPT) \
+void ff_pred4x4_ ## TYPE ## _ ## DEPTH ## _ ## OPT (uint8_t *src, \
+                                                    const uint8_t *topright, \
+                                                    ptrdiff_t stride);
+
+PRED4x4(dc, 10, mmxext)
+PRED4x4(down_left, 10, sse2)
+PRED4x4(down_left, 10, avx)
+PRED4x4(down_right, 10, sse2)
+PRED4x4(down_right, 10, ssse3)
+PRED4x4(down_right, 10, avx)
+PRED4x4(vertical_left, 10, sse2)
+PRED4x4(vertical_left, 10, avx)
+PRED4x4(vertical_right, 10, sse2)
+PRED4x4(vertical_right, 10, ssse3)
+PRED4x4(vertical_right, 10, avx)
+PRED4x4(horizontal_up, 10, mmxext)
+PRED4x4(horizontal_down, 10, sse2)
+PRED4x4(horizontal_down, 10, ssse3)
+PRED4x4(horizontal_down, 10, avx)
+
+#define PRED8x8(TYPE, DEPTH, OPT) \
+void ff_pred8x8_ ## TYPE ## _ ## DEPTH ## _ ## OPT (uint8_t *src, \
+                                                    ptrdiff_t stride);
+
+PRED8x8(dc, 10, mmxext)
+PRED8x8(dc, 10, sse2)
+PRED8x8(top_dc, 10, sse2)
+PRED8x8(plane, 10, sse2)
+PRED8x8(vertical, 10, sse2)
+PRED8x8(horizontal, 10, sse2)
+
+#define PRED8x8L(TYPE, DEPTH, OPT)\
+void ff_pred8x8l_ ## TYPE ## _ ## DEPTH ## _ ## OPT (uint8_t *src, \
+                                                     int has_topleft, \
+                                                     int has_topright, \
+                                                     ptrdiff_t stride);
+
+PRED8x8L(dc, 10, sse2)
+PRED8x8L(dc, 10, avx)
+PRED8x8L(128_dc, 10, mmxext)
+PRED8x8L(128_dc, 10, sse2)
+PRED8x8L(top_dc, 10, sse2)
+PRED8x8L(top_dc, 10, avx)
+PRED8x8L(vertical, 10, sse2)
+PRED8x8L(vertical, 10, avx)
+PRED8x8L(horizontal, 10, sse2)
+PRED8x8L(horizontal, 10, ssse3)
+PRED8x8L(horizontal, 10, avx)
+PRED8x8L(down_left, 10, sse2)
+PRED8x8L(down_left, 10, ssse3)
+PRED8x8L(down_left, 10, avx)
+PRED8x8L(down_right, 10, sse2)
+PRED8x8L(down_right, 10, ssse3)
+PRED8x8L(down_right, 10, avx)
+PRED8x8L(vertical_right, 10, sse2)
+PRED8x8L(vertical_right, 10, ssse3)
+PRED8x8L(vertical_right, 10, avx)
+PRED8x8L(horizontal_up, 10, sse2)
+PRED8x8L(horizontal_up, 10, ssse3)
+PRED8x8L(horizontal_up, 10, avx)
+
+#define PRED16x16(TYPE, DEPTH, OPT)\
+void ff_pred16x16_ ## TYPE ## _ ## DEPTH ## _ ## OPT (uint8_t *src, \
+                                                      ptrdiff_t stride);
+
+PRED16x16(dc, 10, mmxext)
+PRED16x16(dc, 10, sse2)
+PRED16x16(top_dc, 10, mmxext)
+PRED16x16(top_dc, 10, sse2)
+PRED16x16(128_dc, 10, mmxext)
+PRED16x16(128_dc, 10, sse2)
+PRED16x16(left_dc, 10, mmxext)
+PRED16x16(left_dc, 10, sse2)
+PRED16x16(vertical, 10, mmxext)
+PRED16x16(vertical, 10, sse2)
+PRED16x16(horizontal, 10, mmxext)
+PRED16x16(horizontal, 10, sse2)
+
+/* 8-bit versions */
+PRED16x16(vertical, 8, mmx)
+PRED16x16(vertical, 8, sse)
+PRED16x16(horizontal, 8, mmx)
+PRED16x16(horizontal, 8, mmxext)
+PRED16x16(horizontal, 8, ssse3)
+PRED16x16(dc, 8, mmxext)
+PRED16x16(dc, 8, sse2)
+PRED16x16(dc, 8, ssse3)
+PRED16x16(plane_h264, 8, mmx)
+PRED16x16(plane_h264, 8, mmxext)
+PRED16x16(plane_h264, 8, sse2)
+PRED16x16(plane_h264, 8, ssse3)
+PRED16x16(plane_rv40, 8, mmx)
+PRED16x16(plane_rv40, 8, mmxext)
+PRED16x16(plane_rv40, 8, sse2)
+PRED16x16(plane_rv40, 8, ssse3)
+PRED16x16(plane_svq3, 8, mmx)
+PRED16x16(plane_svq3, 8, mmxext)
+PRED16x16(plane_svq3, 8, sse2)
+PRED16x16(plane_svq3, 8, ssse3)
+PRED16x16(tm_vp8, 8, mmx)
+PRED16x16(tm_vp8, 8, mmxext)
+PRED16x16(tm_vp8, 8, sse2)
+PRED16x16(tm_vp8, 8, avx2)
+
+PRED8x8(top_dc, 8, mmxext)
+PRED8x8(dc_rv40, 8, mmxext)
+PRED8x8(dc, 8, mmxext)
+PRED8x8(vertical, 8, mmx)
+PRED8x8(horizontal, 8, mmx)
+PRED8x8(horizontal, 8, mmxext)
+PRED8x8(horizontal, 8, ssse3)
+PRED8x8(plane, 8, mmx)
+PRED8x8(plane, 8, mmxext)
+PRED8x8(plane, 8, sse2)
+PRED8x8(plane, 8, ssse3)
+PRED8x8(tm_vp8, 8, mmx)
+PRED8x8(tm_vp8, 8, mmxext)
+PRED8x8(tm_vp8, 8, sse2)
+PRED8x8(tm_vp8, 8, ssse3)
+
+PRED8x8L(top_dc, 8, mmxext)
+PRED8x8L(top_dc, 8, ssse3)
+PRED8x8L(dc, 8, mmxext)
+PRED8x8L(dc, 8, ssse3)
+PRED8x8L(horizontal, 8, mmxext)
+PRED8x8L(horizontal, 8, ssse3)
+PRED8x8L(vertical, 8, mmxext)
+PRED8x8L(vertical, 8, ssse3)
+PRED8x8L(down_left, 8, mmxext)
+PRED8x8L(down_left, 8, sse2)
+PRED8x8L(down_left, 8, ssse3)
+PRED8x8L(down_right, 8, mmxext)
+PRED8x8L(down_right, 8, sse2)
+PRED8x8L(down_right, 8, ssse3)
+PRED8x8L(vertical_right, 8, mmxext)
+PRED8x8L(vertical_right, 8, sse2)
+PRED8x8L(vertical_right, 8, ssse3)
+PRED8x8L(vertical_left, 8, sse2)
+PRED8x8L(vertical_left, 8, ssse3)
+PRED8x8L(horizontal_up, 8, mmxext)
+PRED8x8L(horizontal_up, 8, ssse3)
+PRED8x8L(horizontal_down, 8, mmxext)
+PRED8x8L(horizontal_down, 8, sse2)
+PRED8x8L(horizontal_down, 8, ssse3)
+
+PRED4x4(dc, 8, mmxext)
+PRED4x4(down_left, 8, mmxext)
+PRED4x4(down_right, 8, mmxext)
+PRED4x4(vertical_left, 8, mmxext)
+PRED4x4(vertical_right, 8, mmxext)
+PRED4x4(horizontal_up, 8, mmxext)
+PRED4x4(horizontal_down, 8, mmxext)
+PRED4x4(tm_vp8, 8, mmx)
+PRED4x4(tm_vp8, 8, mmxext)
+PRED4x4(tm_vp8, 8, ssse3)
+PRED4x4(vertical_vp8, 8, mmxext)
+
+av_cold void ff_h264_pred_init_x86(H264PredContext *h, int codec_id,
+                                   const int bit_depth,
+                                   const int chroma_format_idc)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (bit_depth == 8) {
+        if (EXTERNAL_MMX(cpu_flags)) {
+            h->pred16x16[VERT_PRED8x8         ] = ff_pred16x16_vertical_8_mmx;
+            h->pred16x16[HOR_PRED8x8          ] = ff_pred16x16_horizontal_8_mmx;
+            if (chroma_format_idc <= 1) {
+                h->pred8x8  [VERT_PRED8x8     ] = ff_pred8x8_vertical_8_mmx;
+                h->pred8x8  [HOR_PRED8x8      ] = ff_pred8x8_horizontal_8_mmx;
+            }
+            if (codec_id == AV_CODEC_ID_VP7 || codec_id == AV_CODEC_ID_VP8) {
+                h->pred16x16[PLANE_PRED8x8    ] = ff_pred16x16_tm_vp8_8_mmx;
+                h->pred8x8  [PLANE_PRED8x8    ] = ff_pred8x8_tm_vp8_8_mmx;
+                h->pred4x4  [TM_VP8_PRED      ] = ff_pred4x4_tm_vp8_8_mmx;
+            } else {
+                if (chroma_format_idc <= 1)
+                    h->pred8x8  [PLANE_PRED8x8] = ff_pred8x8_plane_8_mmx;
+                if (codec_id == AV_CODEC_ID_SVQ3) {
+                    if (cpu_flags & AV_CPU_FLAG_CMOV)
+                        h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_svq3_8_mmx;
+                } else if (codec_id == AV_CODEC_ID_RV40) {
+                    h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_rv40_8_mmx;
+                } else {
+                    h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_h264_8_mmx;
+                }
+            }
+        }
+
+        if (EXTERNAL_MMXEXT(cpu_flags)) {
+            h->pred16x16[HOR_PRED8x8            ] = ff_pred16x16_horizontal_8_mmxext;
+            h->pred16x16[DC_PRED8x8             ] = ff_pred16x16_dc_8_mmxext;
+            if (chroma_format_idc <= 1)
+                h->pred8x8[HOR_PRED8x8          ] = ff_pred8x8_horizontal_8_mmxext;
+            h->pred8x8l [TOP_DC_PRED            ] = ff_pred8x8l_top_dc_8_mmxext;
+            h->pred8x8l [DC_PRED                ] = ff_pred8x8l_dc_8_mmxext;
+            h->pred8x8l [HOR_PRED               ] = ff_pred8x8l_horizontal_8_mmxext;
+            h->pred8x8l [VERT_PRED              ] = ff_pred8x8l_vertical_8_mmxext;
+            h->pred8x8l [DIAG_DOWN_RIGHT_PRED   ] = ff_pred8x8l_down_right_8_mmxext;
+            h->pred8x8l [VERT_RIGHT_PRED        ] = ff_pred8x8l_vertical_right_8_mmxext;
+            h->pred8x8l [HOR_UP_PRED            ] = ff_pred8x8l_horizontal_up_8_mmxext;
+            h->pred8x8l [DIAG_DOWN_LEFT_PRED    ] = ff_pred8x8l_down_left_8_mmxext;
+            h->pred8x8l [HOR_DOWN_PRED          ] = ff_pred8x8l_horizontal_down_8_mmxext;
+            h->pred4x4  [DIAG_DOWN_RIGHT_PRED   ] = ff_pred4x4_down_right_8_mmxext;
+            h->pred4x4  [VERT_RIGHT_PRED        ] = ff_pred4x4_vertical_right_8_mmxext;
+            h->pred4x4  [HOR_DOWN_PRED          ] = ff_pred4x4_horizontal_down_8_mmxext;
+            h->pred4x4  [DC_PRED                ] = ff_pred4x4_dc_8_mmxext;
+            if (codec_id == AV_CODEC_ID_VP7 || codec_id == AV_CODEC_ID_VP8 ||
+                codec_id == AV_CODEC_ID_H264) {
+                h->pred4x4  [DIAG_DOWN_LEFT_PRED] = ff_pred4x4_down_left_8_mmxext;
+            }
+            if (codec_id == AV_CODEC_ID_SVQ3 || codec_id == AV_CODEC_ID_H264) {
+                h->pred4x4  [VERT_LEFT_PRED     ] = ff_pred4x4_vertical_left_8_mmxext;
+            }
+            if (codec_id != AV_CODEC_ID_RV40) {
+                h->pred4x4  [HOR_UP_PRED        ] = ff_pred4x4_horizontal_up_8_mmxext;
+            }
+            if (codec_id == AV_CODEC_ID_SVQ3 || codec_id == AV_CODEC_ID_H264) {
+                if (chroma_format_idc <= 1) {
+                    h->pred8x8[TOP_DC_PRED8x8   ] = ff_pred8x8_top_dc_8_mmxext;
+                    h->pred8x8[DC_PRED8x8       ] = ff_pred8x8_dc_8_mmxext;
+                }
+            }
+            if (codec_id == AV_CODEC_ID_VP7 || codec_id == AV_CODEC_ID_VP8) {
+                h->pred16x16[PLANE_PRED8x8      ] = ff_pred16x16_tm_vp8_8_mmxext;
+                h->pred8x8  [DC_PRED8x8         ] = ff_pred8x8_dc_rv40_8_mmxext;
+                h->pred8x8  [PLANE_PRED8x8      ] = ff_pred8x8_tm_vp8_8_mmxext;
+                h->pred4x4  [TM_VP8_PRED        ] = ff_pred4x4_tm_vp8_8_mmxext;
+                h->pred4x4  [VERT_PRED          ] = ff_pred4x4_vertical_vp8_8_mmxext;
+            } else {
+                if (chroma_format_idc <= 1)
+                    h->pred8x8  [PLANE_PRED8x8] = ff_pred8x8_plane_8_mmxext;
+                if (codec_id == AV_CODEC_ID_SVQ3) {
+                    h->pred16x16[PLANE_PRED8x8  ] = ff_pred16x16_plane_svq3_8_mmxext;
+                } else if (codec_id == AV_CODEC_ID_RV40) {
+                    h->pred16x16[PLANE_PRED8x8  ] = ff_pred16x16_plane_rv40_8_mmxext;
+                } else {
+                    h->pred16x16[PLANE_PRED8x8  ] = ff_pred16x16_plane_h264_8_mmxext;
+                }
+            }
+        }
+
+        if (EXTERNAL_SSE(cpu_flags)) {
+            h->pred16x16[VERT_PRED8x8] = ff_pred16x16_vertical_8_sse;
+        }
+
+        if (EXTERNAL_SSE2(cpu_flags)) {
+            h->pred16x16[DC_PRED8x8           ] = ff_pred16x16_dc_8_sse2;
+            h->pred8x8l [DIAG_DOWN_LEFT_PRED  ] = ff_pred8x8l_down_left_8_sse2;
+            h->pred8x8l [DIAG_DOWN_RIGHT_PRED ] = ff_pred8x8l_down_right_8_sse2;
+            h->pred8x8l [VERT_RIGHT_PRED      ] = ff_pred8x8l_vertical_right_8_sse2;
+            h->pred8x8l [VERT_LEFT_PRED       ] = ff_pred8x8l_vertical_left_8_sse2;
+            h->pred8x8l [HOR_DOWN_PRED        ] = ff_pred8x8l_horizontal_down_8_sse2;
+            if (codec_id == AV_CODEC_ID_VP7 || codec_id == AV_CODEC_ID_VP8) {
+                h->pred16x16[PLANE_PRED8x8    ] = ff_pred16x16_tm_vp8_8_sse2;
+                h->pred8x8  [PLANE_PRED8x8    ] = ff_pred8x8_tm_vp8_8_sse2;
+            } else {
+                if (chroma_format_idc <= 1)
+                    h->pred8x8  [PLANE_PRED8x8] = ff_pred8x8_plane_8_sse2;
+                if (codec_id == AV_CODEC_ID_SVQ3) {
+                    h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_svq3_8_sse2;
+                } else if (codec_id == AV_CODEC_ID_RV40) {
+                    h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_rv40_8_sse2;
+                } else {
+                    h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_h264_8_sse2;
+                }
+            }
+        }
+
+        if (EXTERNAL_SSSE3(cpu_flags)) {
+            h->pred16x16[HOR_PRED8x8          ] = ff_pred16x16_horizontal_8_ssse3;
+            h->pred16x16[DC_PRED8x8           ] = ff_pred16x16_dc_8_ssse3;
+            if (chroma_format_idc <= 1)
+                h->pred8x8  [HOR_PRED8x8      ] = ff_pred8x8_horizontal_8_ssse3;
+            h->pred8x8l [TOP_DC_PRED          ] = ff_pred8x8l_top_dc_8_ssse3;
+            h->pred8x8l [DC_PRED              ] = ff_pred8x8l_dc_8_ssse3;
+            h->pred8x8l [HOR_PRED             ] = ff_pred8x8l_horizontal_8_ssse3;
+            h->pred8x8l [VERT_PRED            ] = ff_pred8x8l_vertical_8_ssse3;
+            h->pred8x8l [DIAG_DOWN_LEFT_PRED  ] = ff_pred8x8l_down_left_8_ssse3;
+            h->pred8x8l [DIAG_DOWN_RIGHT_PRED ] = ff_pred8x8l_down_right_8_ssse3;
+            h->pred8x8l [VERT_RIGHT_PRED      ] = ff_pred8x8l_vertical_right_8_ssse3;
+            h->pred8x8l [VERT_LEFT_PRED       ] = ff_pred8x8l_vertical_left_8_ssse3;
+            h->pred8x8l [HOR_UP_PRED          ] = ff_pred8x8l_horizontal_up_8_ssse3;
+            h->pred8x8l [HOR_DOWN_PRED        ] = ff_pred8x8l_horizontal_down_8_ssse3;
+            if (codec_id == AV_CODEC_ID_VP7 || codec_id == AV_CODEC_ID_VP8) {
+                h->pred8x8  [PLANE_PRED8x8    ] = ff_pred8x8_tm_vp8_8_ssse3;
+                h->pred4x4  [TM_VP8_PRED      ] = ff_pred4x4_tm_vp8_8_ssse3;
+            } else {
+                if (chroma_format_idc <= 1)
+                    h->pred8x8  [PLANE_PRED8x8] = ff_pred8x8_plane_8_ssse3;
+                if (codec_id == AV_CODEC_ID_SVQ3) {
+                    h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_svq3_8_ssse3;
+                } else if (codec_id == AV_CODEC_ID_RV40) {
+                    h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_rv40_8_ssse3;
+                } else {
+                    h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_h264_8_ssse3;
+                }
+            }
+        }
+
+        if(EXTERNAL_AVX2(cpu_flags)){
+            if (codec_id == AV_CODEC_ID_VP8) {
+                h->pred16x16[PLANE_PRED8x8    ] = ff_pred16x16_tm_vp8_8_avx2;
+            }
+        }
+    } else if (bit_depth == 10) {
+        if (EXTERNAL_MMXEXT(cpu_flags)) {
+            h->pred4x4[DC_PRED             ] = ff_pred4x4_dc_10_mmxext;
+            h->pred4x4[HOR_UP_PRED         ] = ff_pred4x4_horizontal_up_10_mmxext;
+
+            if (chroma_format_idc <= 1)
+                h->pred8x8[DC_PRED8x8      ] = ff_pred8x8_dc_10_mmxext;
+
+            h->pred8x8l[DC_128_PRED        ] = ff_pred8x8l_128_dc_10_mmxext;
+
+            h->pred16x16[DC_PRED8x8        ] = ff_pred16x16_dc_10_mmxext;
+            h->pred16x16[TOP_DC_PRED8x8    ] = ff_pred16x16_top_dc_10_mmxext;
+            h->pred16x16[DC_128_PRED8x8    ] = ff_pred16x16_128_dc_10_mmxext;
+            h->pred16x16[LEFT_DC_PRED8x8   ] = ff_pred16x16_left_dc_10_mmxext;
+            h->pred16x16[VERT_PRED8x8      ] = ff_pred16x16_vertical_10_mmxext;
+            h->pred16x16[HOR_PRED8x8       ] = ff_pred16x16_horizontal_10_mmxext;
+        }
+        if (EXTERNAL_SSE2(cpu_flags)) {
+            h->pred4x4[DIAG_DOWN_LEFT_PRED ] = ff_pred4x4_down_left_10_sse2;
+            h->pred4x4[DIAG_DOWN_RIGHT_PRED] = ff_pred4x4_down_right_10_sse2;
+            h->pred4x4[VERT_LEFT_PRED      ] = ff_pred4x4_vertical_left_10_sse2;
+            h->pred4x4[VERT_RIGHT_PRED     ] = ff_pred4x4_vertical_right_10_sse2;
+            h->pred4x4[HOR_DOWN_PRED       ] = ff_pred4x4_horizontal_down_10_sse2;
+
+            if (chroma_format_idc <= 1) {
+                h->pred8x8[DC_PRED8x8      ] = ff_pred8x8_dc_10_sse2;
+                h->pred8x8[TOP_DC_PRED8x8  ] = ff_pred8x8_top_dc_10_sse2;
+                h->pred8x8[PLANE_PRED8x8   ] = ff_pred8x8_plane_10_sse2;
+                h->pred8x8[VERT_PRED8x8    ] = ff_pred8x8_vertical_10_sse2;
+                h->pred8x8[HOR_PRED8x8     ] = ff_pred8x8_horizontal_10_sse2;
+            }
+
+            h->pred8x8l[VERT_PRED           ] = ff_pred8x8l_vertical_10_sse2;
+            h->pred8x8l[HOR_PRED            ] = ff_pred8x8l_horizontal_10_sse2;
+            h->pred8x8l[DC_PRED             ] = ff_pred8x8l_dc_10_sse2;
+            h->pred8x8l[DC_128_PRED         ] = ff_pred8x8l_128_dc_10_sse2;
+            h->pred8x8l[TOP_DC_PRED         ] = ff_pred8x8l_top_dc_10_sse2;
+            h->pred8x8l[DIAG_DOWN_LEFT_PRED ] = ff_pred8x8l_down_left_10_sse2;
+            h->pred8x8l[DIAG_DOWN_RIGHT_PRED] = ff_pred8x8l_down_right_10_sse2;
+            h->pred8x8l[VERT_RIGHT_PRED     ] = ff_pred8x8l_vertical_right_10_sse2;
+            h->pred8x8l[HOR_UP_PRED         ] = ff_pred8x8l_horizontal_up_10_sse2;
+
+            h->pred16x16[DC_PRED8x8        ] = ff_pred16x16_dc_10_sse2;
+            h->pred16x16[TOP_DC_PRED8x8    ] = ff_pred16x16_top_dc_10_sse2;
+            h->pred16x16[DC_128_PRED8x8    ] = ff_pred16x16_128_dc_10_sse2;
+            h->pred16x16[LEFT_DC_PRED8x8   ] = ff_pred16x16_left_dc_10_sse2;
+            h->pred16x16[VERT_PRED8x8      ] = ff_pred16x16_vertical_10_sse2;
+            h->pred16x16[HOR_PRED8x8       ] = ff_pred16x16_horizontal_10_sse2;
+        }
+        if (EXTERNAL_SSSE3(cpu_flags)) {
+            h->pred4x4[DIAG_DOWN_RIGHT_PRED] = ff_pred4x4_down_right_10_ssse3;
+            h->pred4x4[VERT_RIGHT_PRED     ] = ff_pred4x4_vertical_right_10_ssse3;
+            h->pred4x4[HOR_DOWN_PRED       ] = ff_pred4x4_horizontal_down_10_ssse3;
+
+            h->pred8x8l[HOR_PRED            ] = ff_pred8x8l_horizontal_10_ssse3;
+            h->pred8x8l[DIAG_DOWN_LEFT_PRED ] = ff_pred8x8l_down_left_10_ssse3;
+            h->pred8x8l[DIAG_DOWN_RIGHT_PRED] = ff_pred8x8l_down_right_10_ssse3;
+            h->pred8x8l[VERT_RIGHT_PRED     ] = ff_pred8x8l_vertical_right_10_ssse3;
+            h->pred8x8l[HOR_UP_PRED         ] = ff_pred8x8l_horizontal_up_10_ssse3;
+        }
+        if (EXTERNAL_AVX(cpu_flags)) {
+            h->pred4x4[DIAG_DOWN_LEFT_PRED ] = ff_pred4x4_down_left_10_avx;
+            h->pred4x4[DIAG_DOWN_RIGHT_PRED] = ff_pred4x4_down_right_10_avx;
+            h->pred4x4[VERT_LEFT_PRED      ] = ff_pred4x4_vertical_left_10_avx;
+            h->pred4x4[VERT_RIGHT_PRED     ] = ff_pred4x4_vertical_right_10_avx;
+            h->pred4x4[HOR_DOWN_PRED       ] = ff_pred4x4_horizontal_down_10_avx;
+
+            h->pred8x8l[VERT_PRED           ] = ff_pred8x8l_vertical_10_avx;
+            h->pred8x8l[HOR_PRED            ] = ff_pred8x8l_horizontal_10_avx;
+            h->pred8x8l[DC_PRED             ] = ff_pred8x8l_dc_10_avx;
+            h->pred8x8l[TOP_DC_PRED         ] = ff_pred8x8l_top_dc_10_avx;
+            h->pred8x8l[DIAG_DOWN_RIGHT_PRED] = ff_pred8x8l_down_right_10_avx;
+            h->pred8x8l[DIAG_DOWN_LEFT_PRED ] = ff_pred8x8l_down_left_10_avx;
+            h->pred8x8l[VERT_RIGHT_PRED     ] = ff_pred8x8l_vertical_right_10_avx;
+            h->pred8x8l[HOR_UP_PRED         ] = ff_pred8x8l_horizontal_up_10_avx;
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264_qpel.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264_qpel.c
new file mode 100644
index 000000000..0d3dbbadb
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264_qpel.c
@@ -0,0 +1,634 @@
+/*
+ * Copyright (c) 2004-2005 Michael Niedermayer, Loren Merritt
+ * Copyright (c) 2011 Daniel Kang
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/h264dec.h"
+#include "libavcodec/h264qpel.h"
+#include "libavcodec/pixels.h"
+#include "fpel.h"
+
+#if HAVE_X86ASM
+void ff_put_pixels4_l2_mmxext(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
+                              int dstStride, int src1Stride, int h);
+void ff_avg_pixels4_l2_mmxext(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
+                              int dstStride, int src1Stride, int h);
+void ff_put_pixels8_l2_mmxext(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
+                              int dstStride, int src1Stride, int h);
+void ff_avg_pixels8_l2_mmxext(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
+                              int dstStride, int src1Stride, int h);
+void ff_put_pixels16_l2_mmxext(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
+                               int dstStride, int src1Stride, int h);
+void ff_avg_pixels16_l2_mmxext(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
+                               int dstStride, int src1Stride, int h);
+#define ff_put_pixels8_l2_sse2  ff_put_pixels8_l2_mmxext
+#define ff_avg_pixels8_l2_sse2  ff_avg_pixels8_l2_mmxext
+#define ff_put_pixels16_l2_sse2 ff_put_pixels16_l2_mmxext
+#define ff_avg_pixels16_l2_sse2 ff_avg_pixels16_l2_mmxext
+#define ff_put_pixels16_mmxext  ff_put_pixels16_mmx
+#define ff_put_pixels8_mmxext   ff_put_pixels8_mmx
+#define ff_put_pixels4_mmxext   ff_put_pixels4_mmx
+
+#define DEF_QPEL(OPNAME)\
+void ff_ ## OPNAME ## _h264_qpel4_h_lowpass_mmxext(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride);\
+void ff_ ## OPNAME ## _h264_qpel8_h_lowpass_mmxext(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride);\
+void ff_ ## OPNAME ## _h264_qpel8_h_lowpass_ssse3(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride);\
+void ff_ ## OPNAME ## _h264_qpel4_h_lowpass_l2_mmxext(uint8_t *dst, const uint8_t *src, const uint8_t *src2, int dstStride, int src2Stride);\
+void ff_ ## OPNAME ## _h264_qpel8_h_lowpass_l2_mmxext(uint8_t *dst, const uint8_t *src, const uint8_t *src2, int dstStride, int src2Stride);\
+void ff_ ## OPNAME ## _h264_qpel8_h_lowpass_l2_ssse3(uint8_t *dst, const uint8_t *src, const uint8_t *src2, int dstStride, int src2Stride);\
+void ff_ ## OPNAME ## _h264_qpel4_v_lowpass_mmxext(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride);\
+void ff_ ## OPNAME ## _h264_qpel8or16_v_lowpass_op_mmxext(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, int h);\
+void ff_ ## OPNAME ## _h264_qpel8or16_v_lowpass_sse2(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, int h);\
+void ff_ ## OPNAME ## _h264_qpel4_hv_lowpass_v_mmxext(const uint8_t *src, int16_t *tmp, int srcStride);\
+void ff_ ## OPNAME ## _h264_qpel4_hv_lowpass_h_mmxext(int16_t *tmp, uint8_t *dst, int dstStride);\
+void ff_ ## OPNAME ## _h264_qpel8or16_hv1_lowpass_op_mmxext(const uint8_t *src, int16_t *tmp, int srcStride, int size);\
+void ff_ ## OPNAME ## _h264_qpel8or16_hv1_lowpass_op_sse2(const uint8_t *src, int16_t *tmp, int srcStride, int size);\
+void ff_ ## OPNAME ## _h264_qpel8or16_hv2_lowpass_op_mmxext(uint8_t *dst, int16_t *tmp, int dstStride, int unused, int h);\
+void ff_ ## OPNAME ## _h264_qpel8or16_hv2_lowpass_ssse3(uint8_t *dst, int16_t *tmp, int dstStride, int tmpStride, int size);\
+void ff_ ## OPNAME ## _pixels4_l2_shift5_mmxext(uint8_t *dst, const int16_t *src16, const uint8_t *src8, int dstStride, int src8Stride, int h);\
+void ff_ ## OPNAME ## _pixels8_l2_shift5_mmxext(uint8_t *dst, const int16_t *src16, const uint8_t *src8, int dstStride, int src8Stride, int h);
+
+DEF_QPEL(avg)
+DEF_QPEL(put)
+
+static av_always_inline void ff_put_h264_qpel8or16_hv1_lowpass_mmxext(int16_t *tmp, const uint8_t *src, int tmpStride, int srcStride, int size)
+{
+    int w = (size + 8) >> 2;
+    src -= 2 * srcStride + 2;
+    while (w--) {
+        ff_put_h264_qpel8or16_hv1_lowpass_op_mmxext(src, tmp, srcStride, size);
+        tmp += 4;
+        src += 4;
+    }
+}
+
+#define QPEL_H264(OPNAME, OP, MMX)\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel4_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, const uint8_t *src, int dstStride, int tmpStride, int srcStride){\
+    int w=3;\
+    src -= 2*srcStride+2;\
+    while(w--){\
+        ff_ ## OPNAME ## h264_qpel4_hv_lowpass_v_mmxext(src, tmp, srcStride);\
+        tmp += 4;\
+        src += 4;\
+    }\
+    tmp -= 3*4;\
+    ff_ ## OPNAME ## h264_qpel4_hv_lowpass_h_mmxext(tmp, dst, dstStride);\
+}\
+\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, int h){\
+    src -= 2*srcStride;\
+    ff_ ## OPNAME ## h264_qpel8or16_v_lowpass_op_mmxext(dst, src, dstStride, srcStride, h);\
+    src += 4;\
+    dst += 4;\
+    ff_ ## OPNAME ## h264_qpel8or16_v_lowpass_op_mmxext(dst, src, dstStride, srcStride, h);\
+}\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel8or16_hv2_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, int dstStride, int tmpStride, int size){\
+    int w = size>>4;\
+    do{\
+    ff_ ## OPNAME ## h264_qpel8or16_hv2_lowpass_op_mmxext(dst, tmp, dstStride, 0, size);\
+    tmp += 8;\
+    dst += 8;\
+    }while(w--);\
+}\
+\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel8_v_lowpass_ ## MMX(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
+    ff_ ## OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(dst  , src  , dstStride, srcStride, 8);\
+}\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel16_v_lowpass_ ## MMX(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
+    ff_ ## OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(dst  , src  , dstStride, srcStride, 16);\
+    ff_ ## OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(dst+8, src+8, dstStride, srcStride, 16);\
+}\
+\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel16_h_lowpass_ ## MMX(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_ ## MMX(dst  , src  , dstStride, srcStride);\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_ ## MMX(dst+8, src+8, dstStride, srcStride);\
+    src += 8*srcStride;\
+    dst += 8*dstStride;\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_ ## MMX(dst  , src  , dstStride, srcStride);\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_ ## MMX(dst+8, src+8, dstStride, srcStride);\
+}\
+\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel16_h_lowpass_l2_ ## MMX(uint8_t *dst, const uint8_t *src, const uint8_t *src2, int dstStride, int src2Stride){\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(dst  , src  , src2  , dstStride, src2Stride);\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(dst+8, src+8, src2+8, dstStride, src2Stride);\
+    src += 8*dstStride;\
+    dst += 8*dstStride;\
+    src2 += 8*src2Stride;\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(dst  , src  , src2  , dstStride, src2Stride);\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(dst+8, src+8, src2+8, dstStride, src2Stride);\
+}\
+\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel8or16_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, const uint8_t *src, int dstStride, int tmpStride, int srcStride, int size){\
+    ff_put_h264_qpel8or16_hv1_lowpass_ ## MMX(tmp, src, tmpStride, srcStride, size);\
+    ff_ ## OPNAME ## h264_qpel8or16_hv2_lowpass_ ## MMX(dst, tmp, dstStride, tmpStride, size);\
+}\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel8_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, const uint8_t *src, int dstStride, int tmpStride, int srcStride){\
+    ff_ ## OPNAME ## h264_qpel8or16_hv_lowpass_ ## MMX(dst  , tmp  , src  , dstStride, tmpStride, srcStride, 8);\
+}\
+\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel16_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, const uint8_t *src, int dstStride, int tmpStride, int srcStride){\
+    ff_ ## OPNAME ## h264_qpel8or16_hv_lowpass_ ## MMX(dst  , tmp  , src  , dstStride, tmpStride, srcStride, 16);\
+}\
+\
+static av_always_inline void ff_ ## OPNAME ## pixels16_l2_shift5_ ## MMX(uint8_t *dst, const int16_t *src16, const uint8_t *src8, int dstStride, int src8Stride, int h)\
+{\
+    ff_ ## OPNAME ## pixels8_l2_shift5_ ## MMX(dst  , src16  , src8  , dstStride, src8Stride, h);\
+    ff_ ## OPNAME ## pixels8_l2_shift5_ ## MMX(dst+8, src16+8, src8+8, dstStride, src8Stride, h);\
+}\
+
+
+#if ARCH_X86_64
+#define QPEL_H264_H16_XMM(OPNAME, OP, MMX)\
+
+void ff_avg_h264_qpel16_h_lowpass_l2_ssse3(uint8_t *dst, const uint8_t *src, const uint8_t *src2, int dstStride, int src2Stride);
+void ff_put_h264_qpel16_h_lowpass_l2_ssse3(uint8_t *dst, const uint8_t *src, const uint8_t *src2, int dstStride, int src2Stride);
+
+#else // ARCH_X86_64
+#define QPEL_H264_H16_XMM(OPNAME, OP, MMX)\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel16_h_lowpass_l2_ ## MMX(uint8_t *dst, const uint8_t *src, const uint8_t *src2, int dstStride, int src2Stride){\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(dst  , src  , src2  , dstStride, src2Stride);\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(dst+8, src+8, src2+8, dstStride, src2Stride);\
+    src += 8*dstStride;\
+    dst += 8*dstStride;\
+    src2 += 8*src2Stride;\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(dst  , src  , src2  , dstStride, src2Stride);\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(dst+8, src+8, src2+8, dstStride, src2Stride);\
+}
+#endif // ARCH_X86_64
+
+#define QPEL_H264_H_XMM(OPNAME, OP, MMX)\
+QPEL_H264_H16_XMM(OPNAME, OP, MMX)\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel16_h_lowpass_ ## MMX(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_ ## MMX(dst  , src  , dstStride, srcStride);\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_ ## MMX(dst+8, src+8, dstStride, srcStride);\
+    src += 8*srcStride;\
+    dst += 8*dstStride;\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_ ## MMX(dst  , src  , dstStride, srcStride);\
+    ff_ ## OPNAME ## h264_qpel8_h_lowpass_ ## MMX(dst+8, src+8, dstStride, srcStride);\
+}\
+
+#define QPEL_H264_V_XMM(OPNAME, OP, MMX)\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel8_v_lowpass_ ## MMX(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
+    ff_ ## OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(dst  , src  , dstStride, srcStride, 8);\
+}\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel16_v_lowpass_ ## MMX(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
+    ff_ ## OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(dst  , src  , dstStride, srcStride, 16);\
+    ff_ ## OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(dst+8, src+8, dstStride, srcStride, 16);\
+}
+
+static av_always_inline void put_h264_qpel8or16_hv1_lowpass_sse2(int16_t *tmp,
+                                                                 const uint8_t *src,
+                                                                 int tmpStride,
+                                                                 int srcStride,
+                                                                 int size)
+{
+    int w = (size+8)>>3;
+    src -= 2*srcStride+2;
+    while(w--){
+        ff_put_h264_qpel8or16_hv1_lowpass_op_sse2(src, tmp, srcStride, size);
+        tmp += 8;
+        src += 8;
+    }
+}
+
+#define QPEL_H264_HV_XMM(OPNAME, OP, MMX)\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel8or16_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, const uint8_t *src, int dstStride, int tmpStride, int srcStride, int size){\
+    put_h264_qpel8or16_hv1_lowpass_sse2(tmp, src, tmpStride, srcStride, size);\
+    ff_ ## OPNAME ## h264_qpel8or16_hv2_lowpass_ ## MMX(dst, tmp, dstStride, tmpStride, size);\
+}\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel8_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, const uint8_t *src, int dstStride, int tmpStride, int srcStride){\
+    ff_ ## OPNAME ## h264_qpel8or16_hv_lowpass_ ## MMX(dst, tmp, src, dstStride, tmpStride, srcStride, 8);\
+}\
+static av_always_inline void ff_ ## OPNAME ## h264_qpel16_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, const uint8_t *src, int dstStride, int tmpStride, int srcStride){\
+    ff_ ## OPNAME ## h264_qpel8or16_hv_lowpass_ ## MMX(dst, tmp, src, dstStride, tmpStride, srcStride, 16);\
+}\
+
+#define ff_put_h264_qpel8_h_lowpass_l2_sse2  ff_put_h264_qpel8_h_lowpass_l2_mmxext
+#define ff_avg_h264_qpel8_h_lowpass_l2_sse2  ff_avg_h264_qpel8_h_lowpass_l2_mmxext
+#define ff_put_h264_qpel16_h_lowpass_l2_sse2 ff_put_h264_qpel16_h_lowpass_l2_mmxext
+#define ff_avg_h264_qpel16_h_lowpass_l2_sse2 ff_avg_h264_qpel16_h_lowpass_l2_mmxext
+
+#define ff_put_h264_qpel8_v_lowpass_ssse3  ff_put_h264_qpel8_v_lowpass_sse2
+#define ff_avg_h264_qpel8_v_lowpass_ssse3  ff_avg_h264_qpel8_v_lowpass_sse2
+#define ff_put_h264_qpel16_v_lowpass_ssse3 ff_put_h264_qpel16_v_lowpass_sse2
+#define ff_avg_h264_qpel16_v_lowpass_ssse3 ff_avg_h264_qpel16_v_lowpass_sse2
+
+#define ff_put_h264_qpel8or16_hv2_lowpass_sse2 ff_put_h264_qpel8or16_hv2_lowpass_mmxext
+#define ff_avg_h264_qpel8or16_hv2_lowpass_sse2 ff_avg_h264_qpel8or16_hv2_lowpass_mmxext
+
+#define H264_MC(OPNAME, SIZE, MMX, ALIGN) \
+H264_MC_C(OPNAME, SIZE, MMX, ALIGN)\
+H264_MC_V(OPNAME, SIZE, MMX, ALIGN)\
+H264_MC_H(OPNAME, SIZE, MMX, ALIGN)\
+H264_MC_HV(OPNAME, SIZE, MMX, ALIGN)\
+
+static void put_h264_qpel16_mc00_sse2 (uint8_t *dst, const uint8_t *src,
+                                       ptrdiff_t stride)
+{
+    ff_put_pixels16_sse2(dst, src, stride, 16);
+}
+static void avg_h264_qpel16_mc00_sse2 (uint8_t *dst, const uint8_t *src,
+                                       ptrdiff_t stride)
+{
+    ff_avg_pixels16_sse2(dst, src, stride, 16);
+}
+#define put_h264_qpel8_mc00_sse2 put_h264_qpel8_mc00_mmxext
+#define avg_h264_qpel8_mc00_sse2 avg_h264_qpel8_mc00_mmxext
+
+#define H264_MC_C(OPNAME, SIZE, MMX, ALIGN) \
+static void OPNAME ## h264_qpel ## SIZE ## _mc00_ ## MMX (uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    ff_ ## OPNAME ## pixels ## SIZE ## _ ## MMX(dst, src, stride, SIZE);\
+}\
+
+#define H264_MC_H(OPNAME, SIZE, MMX, ALIGN) \
+static void OPNAME ## h264_qpel ## SIZE ## _mc10_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    ff_ ## OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src, src, stride, stride);\
+}\
+\
+static void OPNAME ## h264_qpel ## SIZE ## _mc20_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    ff_ ## OPNAME ## h264_qpel ## SIZE ## _h_lowpass_ ## MMX(dst, src, stride, stride);\
+}\
+\
+static void OPNAME ## h264_qpel ## SIZE ## _mc30_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    ff_ ## OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src, src+1, stride, stride);\
+}\
+
+#define H264_MC_V(OPNAME, SIZE, MMX, ALIGN) \
+static void OPNAME ## h264_qpel ## SIZE ## _mc01_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    LOCAL_ALIGNED(ALIGN, uint8_t, temp, [SIZE*SIZE]);\
+    ff_put_h264_qpel ## SIZE ## _v_lowpass_ ## MMX(temp, src, SIZE, stride);\
+    ff_ ## OPNAME ## pixels ## SIZE ## _l2_ ## MMX(dst, src, temp, stride, stride, SIZE);\
+}\
+\
+static void OPNAME ## h264_qpel ## SIZE ## _mc02_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    ff_ ## OPNAME ## h264_qpel ## SIZE ## _v_lowpass_ ## MMX(dst, src, stride, stride);\
+}\
+\
+static void OPNAME ## h264_qpel ## SIZE ## _mc03_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    LOCAL_ALIGNED(ALIGN, uint8_t, temp, [SIZE*SIZE]);\
+    ff_put_h264_qpel ## SIZE ## _v_lowpass_ ## MMX(temp, src, SIZE, stride);\
+    ff_ ## OPNAME ## pixels ## SIZE ## _l2_ ## MMX(dst, src+stride, temp, stride, stride, SIZE);\
+}\
+
+#define H264_MC_HV(OPNAME, SIZE, MMX, ALIGN) \
+static void OPNAME ## h264_qpel ## SIZE ## _mc11_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    LOCAL_ALIGNED(ALIGN, uint8_t, temp, [SIZE*SIZE]);\
+    ff_put_h264_qpel ## SIZE ## _v_lowpass_ ## MMX(temp, src, SIZE, stride);\
+    ff_ ## OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src, temp, stride, SIZE);\
+}\
+\
+static void OPNAME ## h264_qpel ## SIZE ## _mc31_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    LOCAL_ALIGNED(ALIGN, uint8_t, temp, [SIZE*SIZE]);\
+    ff_put_h264_qpel ## SIZE ## _v_lowpass_ ## MMX(temp, src+1, SIZE, stride);\
+    ff_ ## OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src, temp, stride, SIZE);\
+}\
+\
+static void OPNAME ## h264_qpel ## SIZE ## _mc13_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    LOCAL_ALIGNED(ALIGN, uint8_t, temp, [SIZE*SIZE]);\
+    ff_put_h264_qpel ## SIZE ## _v_lowpass_ ## MMX(temp, src, SIZE, stride);\
+    ff_ ## OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src+stride, temp, stride, SIZE);\
+}\
+\
+static void OPNAME ## h264_qpel ## SIZE ## _mc33_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    LOCAL_ALIGNED(ALIGN, uint8_t, temp, [SIZE*SIZE]);\
+    ff_put_h264_qpel ## SIZE ## _v_lowpass_ ## MMX(temp, src+1, SIZE, stride);\
+    ff_ ## OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src+stride, temp, stride, SIZE);\
+}\
+\
+static void OPNAME ## h264_qpel ## SIZE ## _mc22_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    LOCAL_ALIGNED(ALIGN, uint16_t, temp, [SIZE*(SIZE<8?12:24)]);\
+    ff_ ## OPNAME ## h264_qpel ## SIZE ## _hv_lowpass_ ## MMX(dst, temp, src, stride, SIZE, stride);\
+}\
+\
+static void OPNAME ## h264_qpel ## SIZE ## _mc21_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    LOCAL_ALIGNED(ALIGN, uint8_t, temp, [SIZE*(SIZE<8?12:24)*2 + SIZE*SIZE]);\
+    uint8_t * const halfHV= temp;\
+    int16_t * const halfV= (int16_t*)(temp + SIZE*SIZE);\
+    av_assert2(((int)temp & 7) == 0);\
+    ff_put_h264_qpel ## SIZE ## _hv_lowpass_ ## MMX(halfHV, halfV, src, SIZE, SIZE, stride);\
+    ff_ ## OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src, halfHV, stride, SIZE);\
+}\
+\
+static void OPNAME ## h264_qpel ## SIZE ## _mc23_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    LOCAL_ALIGNED(ALIGN, uint8_t, temp, [SIZE*(SIZE<8?12:24)*2 + SIZE*SIZE]);\
+    uint8_t * const halfHV= temp;\
+    int16_t * const halfV= (int16_t*)(temp + SIZE*SIZE);\
+    av_assert2(((int)temp & 7) == 0);\
+    ff_put_h264_qpel ## SIZE ## _hv_lowpass_ ## MMX(halfHV, halfV, src, SIZE, SIZE, stride);\
+    ff_ ## OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src+stride, halfHV, stride, SIZE);\
+}\
+\
+static void OPNAME ## h264_qpel ## SIZE ## _mc12_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    LOCAL_ALIGNED(ALIGN, uint8_t, temp, [SIZE*(SIZE<8?12:24)*2 + SIZE*SIZE]);\
+    uint8_t * const halfHV= temp;\
+    int16_t * const halfV= (int16_t*)(temp + SIZE*SIZE);\
+    av_assert2(((int)temp & 7) == 0);\
+    ff_put_h264_qpel ## SIZE ## _hv_lowpass_ ## MMX(halfHV, halfV, src, SIZE, SIZE, stride);\
+    ff_ ## OPNAME ## pixels ## SIZE ## _l2_shift5_mmxext(dst, halfV+2, halfHV, stride, SIZE, SIZE);\
+}\
+\
+static void OPNAME ## h264_qpel ## SIZE ## _mc32_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
+{\
+    LOCAL_ALIGNED(ALIGN, uint8_t, temp, [SIZE*(SIZE<8?12:24)*2 + SIZE*SIZE]);\
+    uint8_t * const halfHV= temp;\
+    int16_t * const halfV= (int16_t*)(temp + SIZE*SIZE);\
+    av_assert2(((int)temp & 7) == 0);\
+    ff_put_h264_qpel ## SIZE ## _hv_lowpass_ ## MMX(halfHV, halfV, src, SIZE, SIZE, stride);\
+    ff_ ## OPNAME ## pixels ## SIZE ## _l2_shift5_mmxext(dst, halfV+3, halfHV, stride, SIZE, SIZE);\
+}\
+
+#define H264_MC_4816(MMX)\
+H264_MC(put_, 4, MMX, 8)\
+H264_MC(put_, 8, MMX, 8)\
+H264_MC(put_, 16,MMX, 8)\
+H264_MC(avg_, 4, MMX, 8)\
+H264_MC(avg_, 8, MMX, 8)\
+H264_MC(avg_, 16,MMX, 8)\
+
+#define H264_MC_816(QPEL, XMM)\
+QPEL(put_, 8, XMM, 16)\
+QPEL(put_, 16,XMM, 16)\
+QPEL(avg_, 8, XMM, 16)\
+QPEL(avg_, 16,XMM, 16)\
+
+QPEL_H264(put_,        PUT_OP, mmxext)
+QPEL_H264(avg_, AVG_MMXEXT_OP, mmxext)
+QPEL_H264_V_XMM(put_,       PUT_OP, sse2)
+QPEL_H264_V_XMM(avg_,AVG_MMXEXT_OP, sse2)
+QPEL_H264_HV_XMM(put_,       PUT_OP, sse2)
+QPEL_H264_HV_XMM(avg_,AVG_MMXEXT_OP, sse2)
+QPEL_H264_H_XMM(put_,       PUT_OP, ssse3)
+QPEL_H264_H_XMM(avg_,AVG_MMXEXT_OP, ssse3)
+QPEL_H264_HV_XMM(put_,       PUT_OP, ssse3)
+QPEL_H264_HV_XMM(avg_,AVG_MMXEXT_OP, ssse3)
+
+H264_MC_4816(mmxext)
+H264_MC_816(H264_MC_V, sse2)
+H264_MC_816(H264_MC_HV, sse2)
+H264_MC_816(H264_MC_H, ssse3)
+H264_MC_816(H264_MC_HV, ssse3)
+
+
+//10bit
+#define LUMA_MC_OP(OP, NUM, DEPTH, TYPE, OPT) \
+void ff_ ## OP ## _h264_qpel ## NUM ## _ ## TYPE ## _ ## DEPTH ## _ ## OPT \
+    (uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+
+#define LUMA_MC_ALL(DEPTH, TYPE, OPT) \
+    LUMA_MC_OP(put,  4, DEPTH, TYPE, OPT) \
+    LUMA_MC_OP(avg,  4, DEPTH, TYPE, OPT) \
+    LUMA_MC_OP(put,  8, DEPTH, TYPE, OPT) \
+    LUMA_MC_OP(avg,  8, DEPTH, TYPE, OPT) \
+    LUMA_MC_OP(put, 16, DEPTH, TYPE, OPT) \
+    LUMA_MC_OP(avg, 16, DEPTH, TYPE, OPT)
+
+#define LUMA_MC_816(DEPTH, TYPE, OPT) \
+    LUMA_MC_OP(put,  8, DEPTH, TYPE, OPT) \
+    LUMA_MC_OP(avg,  8, DEPTH, TYPE, OPT) \
+    LUMA_MC_OP(put, 16, DEPTH, TYPE, OPT) \
+    LUMA_MC_OP(avg, 16, DEPTH, TYPE, OPT)
+
+LUMA_MC_ALL(10, mc00, mmxext)
+LUMA_MC_ALL(10, mc10, mmxext)
+LUMA_MC_ALL(10, mc20, mmxext)
+LUMA_MC_ALL(10, mc30, mmxext)
+LUMA_MC_ALL(10, mc01, mmxext)
+LUMA_MC_ALL(10, mc11, mmxext)
+LUMA_MC_ALL(10, mc21, mmxext)
+LUMA_MC_ALL(10, mc31, mmxext)
+LUMA_MC_ALL(10, mc02, mmxext)
+LUMA_MC_ALL(10, mc12, mmxext)
+LUMA_MC_ALL(10, mc22, mmxext)
+LUMA_MC_ALL(10, mc32, mmxext)
+LUMA_MC_ALL(10, mc03, mmxext)
+LUMA_MC_ALL(10, mc13, mmxext)
+LUMA_MC_ALL(10, mc23, mmxext)
+LUMA_MC_ALL(10, mc33, mmxext)
+
+LUMA_MC_816(10, mc00, sse2)
+LUMA_MC_816(10, mc10, sse2)
+LUMA_MC_816(10, mc10, sse2_cache64)
+LUMA_MC_816(10, mc10, ssse3_cache64)
+LUMA_MC_816(10, mc20, sse2)
+LUMA_MC_816(10, mc20, sse2_cache64)
+LUMA_MC_816(10, mc20, ssse3_cache64)
+LUMA_MC_816(10, mc30, sse2)
+LUMA_MC_816(10, mc30, sse2_cache64)
+LUMA_MC_816(10, mc30, ssse3_cache64)
+LUMA_MC_816(10, mc01, sse2)
+LUMA_MC_816(10, mc11, sse2)
+LUMA_MC_816(10, mc21, sse2)
+LUMA_MC_816(10, mc31, sse2)
+LUMA_MC_816(10, mc02, sse2)
+LUMA_MC_816(10, mc12, sse2)
+LUMA_MC_816(10, mc22, sse2)
+LUMA_MC_816(10, mc32, sse2)
+LUMA_MC_816(10, mc03, sse2)
+LUMA_MC_816(10, mc13, sse2)
+LUMA_MC_816(10, mc23, sse2)
+LUMA_MC_816(10, mc33, sse2)
+
+#define QPEL16_OPMC(OP, MC, MMX)\
+void ff_ ## OP ## _h264_qpel16_ ## MC ## _10_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride){\
+    ff_ ## OP ## _h264_qpel8_ ## MC ## _10_ ## MMX(dst   , src   , stride);\
+    ff_ ## OP ## _h264_qpel8_ ## MC ## _10_ ## MMX(dst+16, src+16, stride);\
+    src += 8*stride;\
+    dst += 8*stride;\
+    ff_ ## OP ## _h264_qpel8_ ## MC ## _10_ ## MMX(dst   , src   , stride);\
+    ff_ ## OP ## _h264_qpel8_ ## MC ## _10_ ## MMX(dst+16, src+16, stride);\
+}
+
+#define QPEL16_OP(MC, MMX)\
+QPEL16_OPMC(put, MC, MMX)\
+QPEL16_OPMC(avg, MC, MMX)
+
+#define QPEL16(MMX)\
+QPEL16_OP(mc00, MMX)\
+QPEL16_OP(mc01, MMX)\
+QPEL16_OP(mc02, MMX)\
+QPEL16_OP(mc03, MMX)\
+QPEL16_OP(mc10, MMX)\
+QPEL16_OP(mc11, MMX)\
+QPEL16_OP(mc12, MMX)\
+QPEL16_OP(mc13, MMX)\
+QPEL16_OP(mc20, MMX)\
+QPEL16_OP(mc21, MMX)\
+QPEL16_OP(mc22, MMX)\
+QPEL16_OP(mc23, MMX)\
+QPEL16_OP(mc30, MMX)\
+QPEL16_OP(mc31, MMX)\
+QPEL16_OP(mc32, MMX)\
+QPEL16_OP(mc33, MMX)
+
+#if ARCH_X86_32 // ARCH_X86_64 implies SSE2+
+QPEL16(mmxext)
+#endif
+
+#endif /* HAVE_X86ASM */
+
+#define SET_QPEL_FUNCS(PFX, IDX, SIZE, CPU, PREFIX)                          \
+    do {                                                                     \
+    c->PFX ## _pixels_tab[IDX][ 0] = PREFIX ## PFX ## SIZE ## _mc00_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 1] = PREFIX ## PFX ## SIZE ## _mc10_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 2] = PREFIX ## PFX ## SIZE ## _mc20_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 3] = PREFIX ## PFX ## SIZE ## _mc30_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 4] = PREFIX ## PFX ## SIZE ## _mc01_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 5] = PREFIX ## PFX ## SIZE ## _mc11_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 6] = PREFIX ## PFX ## SIZE ## _mc21_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 7] = PREFIX ## PFX ## SIZE ## _mc31_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 8] = PREFIX ## PFX ## SIZE ## _mc02_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 9] = PREFIX ## PFX ## SIZE ## _mc12_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][10] = PREFIX ## PFX ## SIZE ## _mc22_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][11] = PREFIX ## PFX ## SIZE ## _mc32_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][12] = PREFIX ## PFX ## SIZE ## _mc03_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][13] = PREFIX ## PFX ## SIZE ## _mc13_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][14] = PREFIX ## PFX ## SIZE ## _mc23_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][15] = PREFIX ## PFX ## SIZE ## _mc33_ ## CPU; \
+    } while (0)
+
+#define H264_QPEL_FUNCS(x, y, CPU)                                                            \
+    do {                                                                                      \
+        c->put_h264_qpel_pixels_tab[0][x + y * 4] = put_h264_qpel16_mc ## x ## y ## _ ## CPU; \
+        c->put_h264_qpel_pixels_tab[1][x + y * 4] = put_h264_qpel8_mc  ## x ## y ## _ ## CPU; \
+        c->avg_h264_qpel_pixels_tab[0][x + y * 4] = avg_h264_qpel16_mc ## x ## y ## _ ## CPU; \
+        c->avg_h264_qpel_pixels_tab[1][x + y * 4] = avg_h264_qpel8_mc  ## x ## y ## _ ## CPU; \
+    } while (0)
+
+#define H264_QPEL_FUNCS_10(x, y, CPU)                                                               \
+    do {                                                                                            \
+        c->put_h264_qpel_pixels_tab[0][x + y * 4] = ff_put_h264_qpel16_mc ## x ## y ## _10_ ## CPU; \
+        c->put_h264_qpel_pixels_tab[1][x + y * 4] = ff_put_h264_qpel8_mc  ## x ## y ## _10_ ## CPU; \
+        c->avg_h264_qpel_pixels_tab[0][x + y * 4] = ff_avg_h264_qpel16_mc ## x ## y ## _10_ ## CPU; \
+        c->avg_h264_qpel_pixels_tab[1][x + y * 4] = ff_avg_h264_qpel8_mc  ## x ## y ## _10_ ## CPU; \
+    } while (0)
+
+av_cold void ff_h264qpel_init_x86(H264QpelContext *c, int bit_depth)
+{
+#if HAVE_X86ASM
+    int high_bit_depth = bit_depth > 8;
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        if (!high_bit_depth) {
+            SET_QPEL_FUNCS(put_h264_qpel, 0, 16, mmxext, );
+            SET_QPEL_FUNCS(put_h264_qpel, 1,  8, mmxext, );
+            SET_QPEL_FUNCS(put_h264_qpel, 2,  4, mmxext, );
+            SET_QPEL_FUNCS(avg_h264_qpel, 0, 16, mmxext, );
+            SET_QPEL_FUNCS(avg_h264_qpel, 1,  8, mmxext, );
+            SET_QPEL_FUNCS(avg_h264_qpel, 2,  4, mmxext, );
+        } else if (bit_depth == 10) {
+#if ARCH_X86_32
+            SET_QPEL_FUNCS(avg_h264_qpel, 0, 16, 10_mmxext, ff_);
+            SET_QPEL_FUNCS(put_h264_qpel, 0, 16, 10_mmxext, ff_);
+            SET_QPEL_FUNCS(put_h264_qpel, 1,  8, 10_mmxext, ff_);
+            SET_QPEL_FUNCS(avg_h264_qpel, 1,  8, 10_mmxext, ff_);
+#endif
+            SET_QPEL_FUNCS(put_h264_qpel, 2, 4,  10_mmxext, ff_);
+            SET_QPEL_FUNCS(avg_h264_qpel, 2, 4,  10_mmxext, ff_);
+        }
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        if (!high_bit_depth) {
+            H264_QPEL_FUNCS(0, 1, sse2);
+            H264_QPEL_FUNCS(0, 2, sse2);
+            H264_QPEL_FUNCS(0, 3, sse2);
+            H264_QPEL_FUNCS(1, 1, sse2);
+            H264_QPEL_FUNCS(1, 2, sse2);
+            H264_QPEL_FUNCS(1, 3, sse2);
+            H264_QPEL_FUNCS(2, 1, sse2);
+            H264_QPEL_FUNCS(2, 2, sse2);
+            H264_QPEL_FUNCS(2, 3, sse2);
+            H264_QPEL_FUNCS(3, 1, sse2);
+            H264_QPEL_FUNCS(3, 2, sse2);
+            H264_QPEL_FUNCS(3, 3, sse2);
+        }
+
+        if (bit_depth == 10) {
+            SET_QPEL_FUNCS(put_h264_qpel, 0, 16, 10_sse2, ff_);
+            SET_QPEL_FUNCS(put_h264_qpel, 1,  8, 10_sse2, ff_);
+            SET_QPEL_FUNCS(avg_h264_qpel, 0, 16, 10_sse2, ff_);
+            SET_QPEL_FUNCS(avg_h264_qpel, 1,  8, 10_sse2, ff_);
+            H264_QPEL_FUNCS_10(1, 0, sse2_cache64);
+            H264_QPEL_FUNCS_10(2, 0, sse2_cache64);
+            H264_QPEL_FUNCS_10(3, 0, sse2_cache64);
+        }
+    }
+
+    if (EXTERNAL_SSE2_FAST(cpu_flags)) {
+        if (!high_bit_depth) {
+            H264_QPEL_FUNCS(0, 0, sse2);
+        }
+    }
+
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        if (!high_bit_depth) {
+            H264_QPEL_FUNCS(1, 0, ssse3);
+            H264_QPEL_FUNCS(1, 1, ssse3);
+            H264_QPEL_FUNCS(1, 2, ssse3);
+            H264_QPEL_FUNCS(1, 3, ssse3);
+            H264_QPEL_FUNCS(2, 0, ssse3);
+            H264_QPEL_FUNCS(2, 1, ssse3);
+            H264_QPEL_FUNCS(2, 2, ssse3);
+            H264_QPEL_FUNCS(2, 3, ssse3);
+            H264_QPEL_FUNCS(3, 0, ssse3);
+            H264_QPEL_FUNCS(3, 1, ssse3);
+            H264_QPEL_FUNCS(3, 2, ssse3);
+            H264_QPEL_FUNCS(3, 3, ssse3);
+        }
+
+        if (bit_depth == 10) {
+            H264_QPEL_FUNCS_10(1, 0, ssse3_cache64);
+            H264_QPEL_FUNCS_10(2, 0, ssse3_cache64);
+            H264_QPEL_FUNCS_10(3, 0, ssse3_cache64);
+        }
+    }
+
+    if (EXTERNAL_AVX(cpu_flags)) {
+        /* AVX implies 64 byte cache lines without the need to avoid unaligned
+         * memory accesses that cross the boundary between two cache lines.
+         * TODO: Port X264_CPU_CACHELINE_32/64 detection from x264 to avoid
+         * having to treat SSE2 functions with such properties as AVX. */
+        if (bit_depth == 10) {
+            H264_QPEL_FUNCS_10(1, 0, sse2);
+            H264_QPEL_FUNCS_10(2, 0, sse2);
+            H264_QPEL_FUNCS_10(3, 0, sse2);
+        }
+    }
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264chroma_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264chroma_init.c
new file mode 100644
index 000000000..36bf29df0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264chroma_init.c
@@ -0,0 +1,117 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/h264chroma.h"
+
+void ff_put_h264_chroma_mc8_rnd_mmx  (uint8_t *dst, uint8_t *src,
+                                      ptrdiff_t stride, int h, int x, int y);
+void ff_avg_h264_chroma_mc8_rnd_mmxext(uint8_t *dst, uint8_t *src,
+                                       ptrdiff_t stride, int h, int x, int y);
+void ff_avg_h264_chroma_mc8_rnd_3dnow(uint8_t *dst, uint8_t *src,
+                                      ptrdiff_t stride, int h, int x, int y);
+
+void ff_put_h264_chroma_mc4_mmx      (uint8_t *dst, uint8_t *src,
+                                      ptrdiff_t stride, int h, int x, int y);
+void ff_avg_h264_chroma_mc4_mmxext   (uint8_t *dst, uint8_t *src,
+                                      ptrdiff_t stride, int h, int x, int y);
+void ff_avg_h264_chroma_mc4_3dnow    (uint8_t *dst, uint8_t *src,
+                                      ptrdiff_t stride, int h, int x, int y);
+
+void ff_put_h264_chroma_mc2_mmxext   (uint8_t *dst, uint8_t *src,
+                                      ptrdiff_t stride, int h, int x, int y);
+void ff_avg_h264_chroma_mc2_mmxext   (uint8_t *dst, uint8_t *src,
+                                      ptrdiff_t stride, int h, int x, int y);
+
+void ff_put_h264_chroma_mc8_rnd_ssse3(uint8_t *dst, uint8_t *src,
+                                      ptrdiff_t stride, int h, int x, int y);
+void ff_put_h264_chroma_mc4_ssse3    (uint8_t *dst, uint8_t *src,
+                                      ptrdiff_t stride, int h, int x, int y);
+
+void ff_avg_h264_chroma_mc8_rnd_ssse3(uint8_t *dst, uint8_t *src,
+                                      ptrdiff_t stride, int h, int x, int y);
+void ff_avg_h264_chroma_mc4_ssse3    (uint8_t *dst, uint8_t *src,
+                                      ptrdiff_t stride, int h, int x, int y);
+
+#define CHROMA_MC(OP, NUM, DEPTH, OPT)                                  \
+void ff_ ## OP ## _h264_chroma_mc ## NUM ## _ ## DEPTH ## _ ## OPT      \
+                                      (uint8_t *dst, uint8_t *src,      \
+                                       ptrdiff_t stride, int h, int x, int y);
+
+CHROMA_MC(put, 2, 10, mmxext)
+CHROMA_MC(avg, 2, 10, mmxext)
+CHROMA_MC(put, 4, 10, mmxext)
+CHROMA_MC(avg, 4, 10, mmxext)
+CHROMA_MC(put, 8, 10, sse2)
+CHROMA_MC(avg, 8, 10, sse2)
+CHROMA_MC(put, 8, 10, avx)
+CHROMA_MC(avg, 8, 10, avx)
+
+av_cold void ff_h264chroma_init_x86(H264ChromaContext *c, int bit_depth)
+{
+    int high_bit_depth = bit_depth > 8;
+    int cpu_flags      = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags) && !high_bit_depth) {
+        c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_rnd_mmx;
+        c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_mmx;
+    }
+
+    if (EXTERNAL_AMD3DNOW(cpu_flags) && !high_bit_depth) {
+        c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_rnd_3dnow;
+        c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_3dnow;
+    }
+
+    if (EXTERNAL_MMXEXT(cpu_flags) && !high_bit_depth) {
+        c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_rnd_mmxext;
+        c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_mmxext;
+        c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_mmxext;
+        c->put_h264_chroma_pixels_tab[2] = ff_put_h264_chroma_mc2_mmxext;
+    }
+
+    if (EXTERNAL_MMXEXT(cpu_flags) && bit_depth > 8 && bit_depth <= 10) {
+        c->put_h264_chroma_pixels_tab[2] = ff_put_h264_chroma_mc2_10_mmxext;
+        c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_10_mmxext;
+        c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_10_mmxext;
+        c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_10_mmxext;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags) && bit_depth > 8 && bit_depth <= 10) {
+        c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_10_sse2;
+        c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_10_sse2;
+    }
+
+    if (EXTERNAL_SSSE3(cpu_flags) && !high_bit_depth) {
+        c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_rnd_ssse3;
+        c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_rnd_ssse3;
+        c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_ssse3;
+        c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_ssse3;
+    }
+
+    if (EXTERNAL_AVX(cpu_flags) && bit_depth > 8 && bit_depth <= 10) {
+        // AVX implies !cache64.
+        // TODO: Port cache(32|64) detection from x264.
+        c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_10_avx;
+        c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_10_avx;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264dsp_init.c
new file mode 100644
index 000000000..08eb7ead4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/h264dsp_init.c
@@ -0,0 +1,448 @@
+/*
+ * Copyright (c) 2004-2005 Michael Niedermayer, Loren Merritt
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/h264dsp.h"
+
+/***********************************/
+/* IDCT */
+#define IDCT_ADD_FUNC(NUM, DEPTH, OPT)                                  \
+void ff_h264_idct ## NUM ## _add_ ## DEPTH ## _ ## OPT(uint8_t *dst,    \
+                                                       int16_t *block,  \
+                                                       int stride);
+
+IDCT_ADD_FUNC(, 8, mmx)
+IDCT_ADD_FUNC(, 8, sse2)
+IDCT_ADD_FUNC(, 8, avx)
+IDCT_ADD_FUNC(, 10, sse2)
+IDCT_ADD_FUNC(_dc, 8, mmxext)
+IDCT_ADD_FUNC(_dc, 8, sse2)
+IDCT_ADD_FUNC(_dc, 8, avx)
+IDCT_ADD_FUNC(_dc, 10, mmxext)
+IDCT_ADD_FUNC(8_dc, 8, mmxext)
+IDCT_ADD_FUNC(8_dc, 10, sse2)
+IDCT_ADD_FUNC(8, 8, mmx)
+IDCT_ADD_FUNC(8, 8, sse2)
+IDCT_ADD_FUNC(8, 10, sse2)
+IDCT_ADD_FUNC(, 10, avx)
+IDCT_ADD_FUNC(8_dc, 10, avx)
+IDCT_ADD_FUNC(8, 10, avx)
+
+
+#define IDCT_ADD_REP_FUNC(NUM, REP, DEPTH, OPT)                         \
+void ff_h264_idct ## NUM ## _add ## REP ## _ ## DEPTH ## _ ## OPT       \
+    (uint8_t *dst, const int *block_offset,                             \
+     int16_t *block, int stride, const uint8_t nnzc[6 * 8]);
+
+IDCT_ADD_REP_FUNC(8, 4, 8, mmx)
+IDCT_ADD_REP_FUNC(8, 4, 8, mmxext)
+IDCT_ADD_REP_FUNC(8, 4, 8, sse2)
+IDCT_ADD_REP_FUNC(8, 4, 10, sse2)
+IDCT_ADD_REP_FUNC(8, 4, 10, avx)
+IDCT_ADD_REP_FUNC(, 16, 8, mmx)
+IDCT_ADD_REP_FUNC(, 16, 8, mmxext)
+IDCT_ADD_REP_FUNC(, 16, 8, sse2)
+IDCT_ADD_REP_FUNC(, 16, 10, sse2)
+IDCT_ADD_REP_FUNC(, 16intra, 8, mmx)
+IDCT_ADD_REP_FUNC(, 16intra, 8, mmxext)
+IDCT_ADD_REP_FUNC(, 16intra, 8, sse2)
+IDCT_ADD_REP_FUNC(, 16intra, 10, sse2)
+IDCT_ADD_REP_FUNC(, 16, 10, avx)
+IDCT_ADD_REP_FUNC(, 16intra, 10, avx)
+
+
+#define IDCT_ADD_REP_FUNC2(NUM, REP, DEPTH, OPT)                      \
+void ff_h264_idct ## NUM ## _add ## REP ## _ ## DEPTH ## _ ## OPT     \
+    (uint8_t **dst, const int *block_offset,                          \
+     int16_t *block, int stride, const uint8_t nnzc[6 * 8]);
+
+IDCT_ADD_REP_FUNC2(, 8, 8, mmx)
+IDCT_ADD_REP_FUNC2(, 8, 8, mmxext)
+IDCT_ADD_REP_FUNC2(, 8, 8, sse2)
+IDCT_ADD_REP_FUNC2(, 8, 10, sse2)
+IDCT_ADD_REP_FUNC2(, 8, 10, avx)
+
+IDCT_ADD_REP_FUNC2(, 8_422, 8, mmx)
+
+IDCT_ADD_REP_FUNC2(, 8_422, 10, sse2)
+IDCT_ADD_REP_FUNC2(, 8_422, 10, avx)
+
+void ff_h264_luma_dc_dequant_idct_mmx(int16_t *output, int16_t *input, int qmul);
+void ff_h264_luma_dc_dequant_idct_sse2(int16_t *output, int16_t *input, int qmul);
+
+/***********************************/
+/* deblocking */
+
+void ff_h264_loop_filter_strength_mmxext(int16_t bS[2][4][4], uint8_t nnz[40],
+                                         int8_t ref[2][40],
+                                         int16_t mv[2][40][2],
+                                         int bidir, int edges, int step,
+                                         int mask_mv0, int mask_mv1, int field);
+
+#define LF_FUNC(DIR, TYPE, DEPTH, OPT)                                        \
+void ff_deblock_ ## DIR ## _ ## TYPE ## _ ## DEPTH ## _ ## OPT(uint8_t *pix,  \
+                                                               ptrdiff_t stride, \
+                                                               int alpha,     \
+                                                               int beta,      \
+                                                               int8_t *tc0);
+#define LF_IFUNC(DIR, TYPE, DEPTH, OPT) \
+void ff_deblock_ ## DIR ## _ ## TYPE ## _ ## DEPTH ## _ ## OPT(uint8_t *pix,  \
+                                                               ptrdiff_t stride, \
+                                                               int alpha,     \
+                                                               int beta);
+
+#define LF_FUNCS(type, depth)                   \
+LF_FUNC(h,  chroma,          depth, mmxext)     \
+LF_IFUNC(h, chroma_intra,    depth, mmxext)     \
+LF_FUNC(h,  chroma422,       depth, mmxext)     \
+LF_IFUNC(h, chroma422_intra, depth, mmxext)     \
+LF_FUNC(v,  chroma,          depth, mmxext)     \
+LF_IFUNC(v, chroma_intra,    depth, mmxext)     \
+LF_FUNC(h,  luma,            depth, mmxext)     \
+LF_IFUNC(h, luma_intra,      depth, mmxext)     \
+LF_FUNC(h,  luma,            depth, sse2)       \
+LF_IFUNC(h, luma_intra,      depth, sse2)       \
+LF_FUNC(v,  luma,            depth, sse2)       \
+LF_IFUNC(v, luma_intra,      depth, sse2)       \
+LF_FUNC(h,  chroma,          depth, sse2)       \
+LF_IFUNC(h, chroma_intra,    depth, sse2)       \
+LF_FUNC(h,  chroma422,       depth, sse2)       \
+LF_IFUNC(h, chroma422_intra, depth, sse2)       \
+LF_FUNC(v,  chroma,          depth, sse2)       \
+LF_IFUNC(v, chroma_intra,    depth, sse2)       \
+LF_FUNC(h,  luma,            depth, avx)        \
+LF_IFUNC(h, luma_intra,      depth, avx)        \
+LF_FUNC(v,  luma,            depth, avx)        \
+LF_IFUNC(v, luma_intra,      depth, avx)        \
+LF_FUNC(h,  chroma,          depth, avx)        \
+LF_IFUNC(h, chroma_intra,    depth, avx)        \
+LF_FUNC(h,  chroma422,       depth, avx)        \
+LF_IFUNC(h, chroma422_intra, depth, avx)        \
+LF_FUNC(v,  chroma,          depth, avx)        \
+LF_IFUNC(v, chroma_intra,    depth, avx)
+
+LF_FUNC(h, luma_mbaff, 8, sse2)
+LF_FUNC(h, luma_mbaff, 8, avx)
+
+LF_FUNCS(uint8_t,   8)
+LF_FUNCS(uint16_t, 10)
+
+#if ARCH_X86_32 && HAVE_MMXEXT_EXTERNAL
+LF_FUNC(v8, luma, 8, mmxext)
+static void deblock_v_luma_8_mmxext(uint8_t *pix, int stride, int alpha,
+                                    int beta, int8_t *tc0)
+{
+    if ((tc0[0] & tc0[1]) >= 0)
+        ff_deblock_v8_luma_8_mmxext(pix + 0, stride, alpha, beta, tc0);
+    if ((tc0[2] & tc0[3]) >= 0)
+        ff_deblock_v8_luma_8_mmxext(pix + 8, stride, alpha, beta, tc0 + 2);
+}
+LF_IFUNC(v8, luma_intra, 8, mmxext)
+static void deblock_v_luma_intra_8_mmxext(uint8_t *pix, int stride,
+                                          int alpha, int beta)
+{
+    ff_deblock_v8_luma_intra_8_mmxext(pix + 0, stride, alpha, beta);
+    ff_deblock_v8_luma_intra_8_mmxext(pix + 8, stride, alpha, beta);
+}
+#endif /* ARCH_X86_32 && HAVE_MMXEXT_EXTERNAL */
+
+LF_FUNC(v,  luma,       10, mmxext)
+LF_IFUNC(v, luma_intra, 10, mmxext)
+
+/***********************************/
+/* weighted prediction */
+
+#define H264_WEIGHT(W, OPT)                                             \
+void ff_h264_weight_ ## W ## _ ## OPT(uint8_t *dst, ptrdiff_t stride,   \
+                                      int height, int log2_denom,       \
+                                      int weight, int offset);
+
+#define H264_BIWEIGHT(W, OPT)                                           \
+void ff_h264_biweight_ ## W ## _ ## OPT(uint8_t *dst, uint8_t *src,     \
+                                        ptrdiff_t stride, int height,   \
+                                        int log2_denom, int weightd,    \
+                                        int weights, int offset);
+
+#define H264_BIWEIGHT_MMX(W)                    \
+    H264_WEIGHT(W, mmxext)                      \
+    H264_BIWEIGHT(W, mmxext)
+
+#define H264_BIWEIGHT_MMX_SSE(W)                \
+    H264_BIWEIGHT_MMX(W)                        \
+    H264_WEIGHT(W, sse2)                        \
+    H264_BIWEIGHT(W, sse2)                      \
+    H264_BIWEIGHT(W, ssse3)
+
+H264_BIWEIGHT_MMX_SSE(16)
+H264_BIWEIGHT_MMX_SSE(8)
+H264_BIWEIGHT_MMX(4)
+
+#define H264_WEIGHT_10(W, DEPTH, OPT)                                   \
+void ff_h264_weight_ ## W ## _ ## DEPTH ## _ ## OPT(uint8_t *dst,       \
+                                                    ptrdiff_t stride,   \
+                                                    int height,         \
+                                                    int log2_denom,     \
+                                                    int weight,         \
+                                                    int offset);
+
+#define H264_BIWEIGHT_10(W, DEPTH, OPT)                                 \
+void ff_h264_biweight_ ## W ## _ ## DEPTH ## _ ## OPT(uint8_t *dst,     \
+                                                      uint8_t *src,     \
+                                                      ptrdiff_t stride, \
+                                                      int height,       \
+                                                      int log2_denom,   \
+                                                      int weightd,      \
+                                                      int weights,      \
+                                                      int offset);
+
+#define H264_BIWEIGHT_10_SSE(W, DEPTH)          \
+    H264_WEIGHT_10(W, DEPTH, sse2)              \
+    H264_WEIGHT_10(W, DEPTH, sse4)              \
+    H264_BIWEIGHT_10(W, DEPTH, sse2)            \
+    H264_BIWEIGHT_10(W, DEPTH, sse4)
+
+H264_BIWEIGHT_10_SSE(16, 10)
+H264_BIWEIGHT_10_SSE(8,  10)
+H264_BIWEIGHT_10_SSE(4,  10)
+
+av_cold void ff_h264dsp_init_x86(H264DSPContext *c, const int bit_depth,
+                                 const int chroma_format_idc)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMXEXT(cpu_flags) && chroma_format_idc <= 1)
+        c->h264_loop_filter_strength = ff_h264_loop_filter_strength_mmxext;
+
+    if (bit_depth == 8) {
+        if (EXTERNAL_MMX(cpu_flags)) {
+            c->h264_idct_dc_add   =
+            c->h264_idct_add      = ff_h264_idct_add_8_mmx;
+            c->h264_idct8_dc_add  =
+            c->h264_idct8_add     = ff_h264_idct8_add_8_mmx;
+
+            c->h264_idct_add16 = ff_h264_idct_add16_8_mmx;
+            c->h264_idct8_add4 = ff_h264_idct8_add4_8_mmx;
+            if (chroma_format_idc <= 1) {
+                c->h264_idct_add8 = ff_h264_idct_add8_8_mmx;
+            } else {
+                c->h264_idct_add8 = ff_h264_idct_add8_422_8_mmx;
+            }
+            c->h264_idct_add16intra = ff_h264_idct_add16intra_8_mmx;
+            if (cpu_flags & AV_CPU_FLAG_CMOV)
+                c->h264_luma_dc_dequant_idct = ff_h264_luma_dc_dequant_idct_mmx;
+        }
+        if (EXTERNAL_MMXEXT(cpu_flags)) {
+            c->h264_idct_dc_add  = ff_h264_idct_dc_add_8_mmxext;
+            c->h264_idct8_dc_add = ff_h264_idct8_dc_add_8_mmxext;
+            c->h264_idct_add16   = ff_h264_idct_add16_8_mmxext;
+            c->h264_idct8_add4   = ff_h264_idct8_add4_8_mmxext;
+            if (chroma_format_idc <= 1)
+                c->h264_idct_add8 = ff_h264_idct_add8_8_mmxext;
+            c->h264_idct_add16intra = ff_h264_idct_add16intra_8_mmxext;
+
+            c->h264_v_loop_filter_chroma       = ff_deblock_v_chroma_8_mmxext;
+            c->h264_v_loop_filter_chroma_intra = ff_deblock_v_chroma_intra_8_mmxext;
+            if (chroma_format_idc <= 1) {
+                c->h264_h_loop_filter_chroma       = ff_deblock_h_chroma_8_mmxext;
+                c->h264_h_loop_filter_chroma_intra = ff_deblock_h_chroma_intra_8_mmxext;
+            } else {
+                c->h264_h_loop_filter_chroma = ff_deblock_h_chroma422_8_mmxext;
+                c->h264_h_loop_filter_chroma_intra = ff_deblock_h_chroma422_intra_8_mmxext;
+            }
+#if ARCH_X86_32 && HAVE_MMXEXT_EXTERNAL
+            c->h264_v_loop_filter_luma       = deblock_v_luma_8_mmxext;
+            c->h264_h_loop_filter_luma       = ff_deblock_h_luma_8_mmxext;
+            c->h264_v_loop_filter_luma_intra = deblock_v_luma_intra_8_mmxext;
+            c->h264_h_loop_filter_luma_intra = ff_deblock_h_luma_intra_8_mmxext;
+#endif /* ARCH_X86_32 && HAVE_MMXEXT_EXTERNAL */
+            c->weight_h264_pixels_tab[0] = ff_h264_weight_16_mmxext;
+            c->weight_h264_pixels_tab[1] = ff_h264_weight_8_mmxext;
+            c->weight_h264_pixels_tab[2] = ff_h264_weight_4_mmxext;
+
+            c->biweight_h264_pixels_tab[0] = ff_h264_biweight_16_mmxext;
+            c->biweight_h264_pixels_tab[1] = ff_h264_biweight_8_mmxext;
+            c->biweight_h264_pixels_tab[2] = ff_h264_biweight_4_mmxext;
+        }
+        if (EXTERNAL_SSE2(cpu_flags)) {
+            c->h264_idct8_add  = ff_h264_idct8_add_8_sse2;
+
+            c->h264_idct_add16 = ff_h264_idct_add16_8_sse2;
+            c->h264_idct8_add4 = ff_h264_idct8_add4_8_sse2;
+            if (chroma_format_idc <= 1)
+                c->h264_idct_add8 = ff_h264_idct_add8_8_sse2;
+            c->h264_idct_add16intra      = ff_h264_idct_add16intra_8_sse2;
+            c->h264_luma_dc_dequant_idct = ff_h264_luma_dc_dequant_idct_sse2;
+
+            c->weight_h264_pixels_tab[0] = ff_h264_weight_16_sse2;
+            c->weight_h264_pixels_tab[1] = ff_h264_weight_8_sse2;
+
+            c->biweight_h264_pixels_tab[0] = ff_h264_biweight_16_sse2;
+            c->biweight_h264_pixels_tab[1] = ff_h264_biweight_8_sse2;
+
+            c->h264_v_loop_filter_luma       = ff_deblock_v_luma_8_sse2;
+            c->h264_h_loop_filter_luma       = ff_deblock_h_luma_8_sse2;
+            c->h264_v_loop_filter_luma_intra = ff_deblock_v_luma_intra_8_sse2;
+            c->h264_h_loop_filter_luma_intra = ff_deblock_h_luma_intra_8_sse2;
+
+#if ARCH_X86_64
+            c->h264_h_loop_filter_luma_mbaff = ff_deblock_h_luma_mbaff_8_sse2;
+#endif
+
+            c->h264_v_loop_filter_chroma       = ff_deblock_v_chroma_8_sse2;
+            c->h264_v_loop_filter_chroma_intra = ff_deblock_v_chroma_intra_8_sse2;
+            if (chroma_format_idc <= 1) {
+                c->h264_h_loop_filter_chroma       = ff_deblock_h_chroma_8_sse2;
+                c->h264_h_loop_filter_chroma_intra = ff_deblock_h_chroma_intra_8_sse2;
+            } else {
+                c->h264_h_loop_filter_chroma       = ff_deblock_h_chroma422_8_sse2;
+                c->h264_h_loop_filter_chroma_intra = ff_deblock_h_chroma422_intra_8_sse2;
+            }
+
+            c->h264_idct_add        = ff_h264_idct_add_8_sse2;
+            c->h264_idct_dc_add     = ff_h264_idct_dc_add_8_sse2;
+        }
+        if (EXTERNAL_SSSE3(cpu_flags)) {
+            c->biweight_h264_pixels_tab[0] = ff_h264_biweight_16_ssse3;
+            c->biweight_h264_pixels_tab[1] = ff_h264_biweight_8_ssse3;
+        }
+        if (EXTERNAL_AVX(cpu_flags)) {
+            c->h264_v_loop_filter_luma       = ff_deblock_v_luma_8_avx;
+            c->h264_h_loop_filter_luma       = ff_deblock_h_luma_8_avx;
+            c->h264_v_loop_filter_luma_intra = ff_deblock_v_luma_intra_8_avx;
+            c->h264_h_loop_filter_luma_intra = ff_deblock_h_luma_intra_8_avx;
+#if ARCH_X86_64
+            c->h264_h_loop_filter_luma_mbaff = ff_deblock_h_luma_mbaff_8_avx;
+#endif
+
+            c->h264_v_loop_filter_chroma       = ff_deblock_v_chroma_8_avx;
+            c->h264_v_loop_filter_chroma_intra = ff_deblock_v_chroma_intra_8_avx;
+            if (chroma_format_idc <= 1) {
+                c->h264_h_loop_filter_chroma       = ff_deblock_h_chroma_8_avx;
+                c->h264_h_loop_filter_chroma_intra = ff_deblock_h_chroma_intra_8_avx;
+            } else {
+                c->h264_h_loop_filter_chroma       = ff_deblock_h_chroma422_8_avx;
+                c->h264_h_loop_filter_chroma_intra = ff_deblock_h_chroma422_intra_8_avx;
+            }
+
+            c->h264_idct_add        = ff_h264_idct_add_8_avx;
+            c->h264_idct_dc_add     = ff_h264_idct_dc_add_8_avx;
+        }
+    } else if (bit_depth == 10) {
+        if (EXTERNAL_MMXEXT(cpu_flags)) {
+#if ARCH_X86_32
+            c->h264_v_loop_filter_chroma       = ff_deblock_v_chroma_10_mmxext;
+            c->h264_v_loop_filter_chroma_intra = ff_deblock_v_chroma_intra_10_mmxext;
+            if (chroma_format_idc <= 1) {
+                c->h264_h_loop_filter_chroma = ff_deblock_h_chroma_10_mmxext;
+            } else {
+                c->h264_h_loop_filter_chroma = ff_deblock_h_chroma422_10_mmxext;
+            }
+            c->h264_v_loop_filter_luma         = ff_deblock_v_luma_10_mmxext;
+            c->h264_h_loop_filter_luma         = ff_deblock_h_luma_10_mmxext;
+            c->h264_v_loop_filter_luma_intra   = ff_deblock_v_luma_intra_10_mmxext;
+            c->h264_h_loop_filter_luma_intra   = ff_deblock_h_luma_intra_10_mmxext;
+#endif /* ARCH_X86_32 */
+            c->h264_idct_dc_add = ff_h264_idct_dc_add_10_mmxext;
+        }
+        if (EXTERNAL_SSE2(cpu_flags)) {
+            c->h264_idct_add     = ff_h264_idct_add_10_sse2;
+            c->h264_idct8_dc_add = ff_h264_idct8_dc_add_10_sse2;
+
+            c->h264_idct_add16 = ff_h264_idct_add16_10_sse2;
+            if (chroma_format_idc <= 1) {
+                c->h264_idct_add8 = ff_h264_idct_add8_10_sse2;
+            } else {
+                c->h264_idct_add8 = ff_h264_idct_add8_422_10_sse2;
+            }
+            c->h264_idct_add16intra = ff_h264_idct_add16intra_10_sse2;
+#if HAVE_ALIGNED_STACK
+            c->h264_idct8_add  = ff_h264_idct8_add_10_sse2;
+            c->h264_idct8_add4 = ff_h264_idct8_add4_10_sse2;
+#endif /* HAVE_ALIGNED_STACK */
+
+            c->weight_h264_pixels_tab[0] = ff_h264_weight_16_10_sse2;
+            c->weight_h264_pixels_tab[1] = ff_h264_weight_8_10_sse2;
+            c->weight_h264_pixels_tab[2] = ff_h264_weight_4_10_sse2;
+
+            c->biweight_h264_pixels_tab[0] = ff_h264_biweight_16_10_sse2;
+            c->biweight_h264_pixels_tab[1] = ff_h264_biweight_8_10_sse2;
+            c->biweight_h264_pixels_tab[2] = ff_h264_biweight_4_10_sse2;
+
+            c->h264_v_loop_filter_chroma       = ff_deblock_v_chroma_10_sse2;
+            c->h264_v_loop_filter_chroma_intra = ff_deblock_v_chroma_intra_10_sse2;
+            if (chroma_format_idc <= 1) {
+                c->h264_h_loop_filter_chroma = ff_deblock_h_chroma_10_sse2;
+            } else {
+                c->h264_h_loop_filter_chroma = ff_deblock_h_chroma422_10_sse2;
+            }
+#if HAVE_ALIGNED_STACK
+            c->h264_v_loop_filter_luma       = ff_deblock_v_luma_10_sse2;
+            c->h264_h_loop_filter_luma       = ff_deblock_h_luma_10_sse2;
+            c->h264_v_loop_filter_luma_intra = ff_deblock_v_luma_intra_10_sse2;
+            c->h264_h_loop_filter_luma_intra = ff_deblock_h_luma_intra_10_sse2;
+#endif /* HAVE_ALIGNED_STACK */
+        }
+        if (EXTERNAL_SSE4(cpu_flags)) {
+            c->weight_h264_pixels_tab[0] = ff_h264_weight_16_10_sse4;
+            c->weight_h264_pixels_tab[1] = ff_h264_weight_8_10_sse4;
+            c->weight_h264_pixels_tab[2] = ff_h264_weight_4_10_sse4;
+
+            c->biweight_h264_pixels_tab[0] = ff_h264_biweight_16_10_sse4;
+            c->biweight_h264_pixels_tab[1] = ff_h264_biweight_8_10_sse4;
+            c->biweight_h264_pixels_tab[2] = ff_h264_biweight_4_10_sse4;
+        }
+        if (EXTERNAL_AVX(cpu_flags)) {
+            c->h264_idct_dc_add  =
+            c->h264_idct_add     = ff_h264_idct_add_10_avx;
+            c->h264_idct8_dc_add = ff_h264_idct8_dc_add_10_avx;
+
+            c->h264_idct_add16 = ff_h264_idct_add16_10_avx;
+            if (chroma_format_idc <= 1) {
+                c->h264_idct_add8 = ff_h264_idct_add8_10_avx;
+            } else {
+                c->h264_idct_add8 = ff_h264_idct_add8_422_10_avx;
+            }
+            c->h264_idct_add16intra = ff_h264_idct_add16intra_10_avx;
+#if HAVE_ALIGNED_STACK
+            c->h264_idct8_add  = ff_h264_idct8_add_10_avx;
+            c->h264_idct8_add4 = ff_h264_idct8_add4_10_avx;
+#endif /* HAVE_ALIGNED_STACK */
+
+            c->h264_v_loop_filter_chroma       = ff_deblock_v_chroma_10_avx;
+            c->h264_v_loop_filter_chroma_intra = ff_deblock_v_chroma_intra_10_avx;
+            if (chroma_format_idc <= 1) {
+                c->h264_h_loop_filter_chroma = ff_deblock_h_chroma_10_avx;
+            } else {
+                c->h264_h_loop_filter_chroma = ff_deblock_h_chroma422_10_avx;
+            }
+#if HAVE_ALIGNED_STACK
+            c->h264_v_loop_filter_luma         = ff_deblock_v_luma_10_avx;
+            c->h264_h_loop_filter_luma         = ff_deblock_h_luma_10_avx;
+            c->h264_v_loop_filter_luma_intra   = ff_deblock_v_luma_intra_10_avx;
+            c->h264_h_loop_filter_luma_intra   = ff_deblock_h_luma_intra_10_avx;
+#endif /* HAVE_ALIGNED_STACK */
+        }
+    }
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hevcdsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hevcdsp.h
new file mode 100644
index 000000000..67be0a905
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hevcdsp.h
@@ -0,0 +1,259 @@
+/*
+ * HEVC video decoder
+ *
+ * Copyright (C) 2012 - 2013 Guillaume Martres
+ * Copyright (C) 2013 - 2014 Pierre-Edouard Lepere
+ *
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_HEVCDSP_H
+#define AVCODEC_X86_HEVCDSP_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+
+#define PEL_LINK(dst, idx1, idx2, idx3, name, D, opt) \
+dst[idx1][idx2][idx3] = ff_hevc_put_hevc_ ## name ## _ ## D ## _##opt; \
+dst ## _bi[idx1][idx2][idx3] = ff_hevc_put_hevc_bi_ ## name ## _ ## D ## _##opt; \
+dst ## _uni[idx1][idx2][idx3] = ff_hevc_put_hevc_uni_ ## name ## _ ## D ## _##opt; \
+dst ## _uni_w[idx1][idx2][idx3] = ff_hevc_put_hevc_uni_w_ ## name ## _ ## D ## _##opt; \
+dst ## _bi_w[idx1][idx2][idx3] = ff_hevc_put_hevc_bi_w_ ## name ## _ ## D ## _##opt
+
+
+#define PEL_PROTOTYPE(name, D, opt) \
+void ff_hevc_put_hevc_ ## name ## _ ## D ## _##opt(int16_t *dst, uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width); \
+void ff_hevc_put_hevc_bi_ ## name ## _ ## D ## _##opt(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int16_t *src2, int height, intptr_t mx, intptr_t my, int width); \
+void ff_hevc_put_hevc_uni_ ## name ## _ ## D ## _##opt(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my, int width); \
+void ff_hevc_put_hevc_uni_w_ ## name ## _ ## D ## _##opt(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int height, int denom, int wx, int ox, intptr_t mx, intptr_t my, int width); \
+void ff_hevc_put_hevc_bi_w_ ## name ## _ ## D ## _##opt(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int16_t *src2, int height, int denom, int wx0, int wx1, int ox0, int ox1, intptr_t mx, intptr_t my, int width)
+
+
+///////////////////////////////////////////////////////////////////////////////
+// MC functions
+///////////////////////////////////////////////////////////////////////////////
+
+#define EPEL_PROTOTYPES(fname, bitd, opt) \
+        PEL_PROTOTYPE(fname##4,  bitd, opt); \
+        PEL_PROTOTYPE(fname##6,  bitd, opt); \
+        PEL_PROTOTYPE(fname##8,  bitd, opt); \
+        PEL_PROTOTYPE(fname##12, bitd, opt); \
+        PEL_PROTOTYPE(fname##16, bitd, opt); \
+        PEL_PROTOTYPE(fname##24, bitd, opt); \
+        PEL_PROTOTYPE(fname##32, bitd, opt); \
+        PEL_PROTOTYPE(fname##48, bitd, opt); \
+        PEL_PROTOTYPE(fname##64, bitd, opt)
+
+#define QPEL_PROTOTYPES(fname, bitd, opt) \
+        PEL_PROTOTYPE(fname##4,  bitd, opt); \
+        PEL_PROTOTYPE(fname##8,  bitd, opt); \
+        PEL_PROTOTYPE(fname##12, bitd, opt); \
+        PEL_PROTOTYPE(fname##16, bitd, opt); \
+        PEL_PROTOTYPE(fname##24, bitd, opt); \
+        PEL_PROTOTYPE(fname##32, bitd, opt); \
+        PEL_PROTOTYPE(fname##48, bitd, opt); \
+        PEL_PROTOTYPE(fname##64, bitd, opt)
+
+#define WEIGHTING_PROTOTYPE(width, bitd, opt) \
+void ff_hevc_put_hevc_uni_w##width##_##bitd##_##opt(uint8_t *dst, ptrdiff_t dststride, int16_t *_src, int height, int denom,  int _wx, int _ox); \
+void ff_hevc_put_hevc_bi_w##width##_##bitd##_##opt(uint8_t *dst, ptrdiff_t dststride, int16_t *_src, int16_t *_src2, int height, int denom,  int _wx0,  int _wx1, int _ox0, int _ox1)
+
+#define WEIGHTING_PROTOTYPES(bitd, opt) \
+        WEIGHTING_PROTOTYPE(2, bitd, opt); \
+        WEIGHTING_PROTOTYPE(4, bitd, opt); \
+        WEIGHTING_PROTOTYPE(6, bitd, opt); \
+        WEIGHTING_PROTOTYPE(8, bitd, opt); \
+        WEIGHTING_PROTOTYPE(12, bitd, opt); \
+        WEIGHTING_PROTOTYPE(16, bitd, opt); \
+        WEIGHTING_PROTOTYPE(24, bitd, opt); \
+        WEIGHTING_PROTOTYPE(32, bitd, opt); \
+        WEIGHTING_PROTOTYPE(48, bitd, opt); \
+        WEIGHTING_PROTOTYPE(64, bitd, opt)
+
+
+///////////////////////////////////////////////////////////////////////////////
+// QPEL_PIXELS EPEL_PIXELS
+///////////////////////////////////////////////////////////////////////////////
+EPEL_PROTOTYPES(pel_pixels ,  8, sse4);
+EPEL_PROTOTYPES(pel_pixels , 10, sse4);
+EPEL_PROTOTYPES(pel_pixels , 12, sse4);
+
+void ff_hevc_put_hevc_pel_pixels16_8_avx2(int16_t *dst, uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+void ff_hevc_put_hevc_pel_pixels24_8_avx2(int16_t *dst, uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+void ff_hevc_put_hevc_pel_pixels32_8_avx2(int16_t *dst, uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+void ff_hevc_put_hevc_pel_pixels48_8_avx2(int16_t *dst, uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+void ff_hevc_put_hevc_pel_pixels64_8_avx2(int16_t *dst, uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+
+void ff_hevc_put_hevc_pel_pixels16_10_avx2(int16_t *dst, uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+void ff_hevc_put_hevc_pel_pixels24_10_avx2(int16_t *dst, uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+void ff_hevc_put_hevc_pel_pixels32_10_avx2(int16_t *dst, uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+void ff_hevc_put_hevc_pel_pixels48_10_avx2(int16_t *dst, uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+void ff_hevc_put_hevc_pel_pixels64_10_avx2(int16_t *dst, uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+
+
+
+void ff_hevc_put_hevc_uni_pel_pixels32_8_avx2(uint8_t *dst, ptrdiff_t dststride,uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+void ff_hevc_put_hevc_uni_pel_pixels48_8_avx2(uint8_t *dst, ptrdiff_t dststride,uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+void ff_hevc_put_hevc_uni_pel_pixels64_8_avx2(uint8_t *dst, ptrdiff_t dststride,uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);
+void ff_hevc_put_hevc_uni_pel_pixels96_8_avx2(uint8_t *dst, ptrdiff_t dststride,uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width); //used for 10bit
+void ff_hevc_put_hevc_uni_pel_pixels128_8_avx2(uint8_t *dst, ptrdiff_t dststride,uint8_t *_src, ptrdiff_t _srcstride, int height, intptr_t mx, intptr_t my,int width);//used for 10bit
+
+
+void ff_hevc_put_hevc_bi_pel_pixels16_8_avx2(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int16_t *src2, int height, intptr_t mx, intptr_t my, int width);
+void ff_hevc_put_hevc_bi_pel_pixels24_8_avx2(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int16_t *src2, int height, intptr_t mx, intptr_t my, int width);
+void ff_hevc_put_hevc_bi_pel_pixels32_8_avx2(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int16_t *src2, int height, intptr_t mx, intptr_t my, int width);
+void ff_hevc_put_hevc_bi_pel_pixels48_8_avx2(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int16_t *src2, int height, intptr_t mx, intptr_t my, int width);
+void ff_hevc_put_hevc_bi_pel_pixels64_8_avx2(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int16_t *src2, int height, intptr_t mx, intptr_t my, int width);
+
+void ff_hevc_put_hevc_bi_pel_pixels16_10_avx2(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int16_t *src2, int height, intptr_t mx, intptr_t my, int width);
+void ff_hevc_put_hevc_bi_pel_pixels24_10_avx2(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int16_t *src2, int height, intptr_t mx, intptr_t my, int width);
+void ff_hevc_put_hevc_bi_pel_pixels32_10_avx2(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int16_t *src2, int height, intptr_t mx, intptr_t my, int width);
+void ff_hevc_put_hevc_bi_pel_pixels48_10_avx2(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int16_t *src2, int height, intptr_t mx, intptr_t my, int width);
+void ff_hevc_put_hevc_bi_pel_pixels64_10_avx2(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride, int16_t *src2, int height, intptr_t mx, intptr_t my, int width);
+
+///////////////////////////////////////////////////////////////////////////////
+// EPEL
+///////////////////////////////////////////////////////////////////////////////
+EPEL_PROTOTYPES(epel_h ,  8, sse4);
+EPEL_PROTOTYPES(epel_h , 10, sse4);
+EPEL_PROTOTYPES(epel_h , 12, sse4);
+
+EPEL_PROTOTYPES(epel_v ,  8, sse4);
+EPEL_PROTOTYPES(epel_v , 10, sse4);
+EPEL_PROTOTYPES(epel_v , 12, sse4);
+
+EPEL_PROTOTYPES(epel_hv ,  8, sse4);
+EPEL_PROTOTYPES(epel_hv , 10, sse4);
+EPEL_PROTOTYPES(epel_hv , 12, sse4);
+
+PEL_PROTOTYPE(epel_h16, 8, avx2);
+PEL_PROTOTYPE(epel_h24, 8, avx2);
+PEL_PROTOTYPE(epel_h32, 8, avx2);
+PEL_PROTOTYPE(epel_h48, 8, avx2);
+PEL_PROTOTYPE(epel_h64, 8, avx2);
+
+PEL_PROTOTYPE(epel_h16,10, avx2);
+PEL_PROTOTYPE(epel_h24,10, avx2);
+PEL_PROTOTYPE(epel_h32,10, avx2);
+PEL_PROTOTYPE(epel_h48,10, avx2);
+PEL_PROTOTYPE(epel_h64,10, avx2);
+
+PEL_PROTOTYPE(epel_v16, 8, avx2);
+PEL_PROTOTYPE(epel_v24, 8, avx2);
+PEL_PROTOTYPE(epel_v32, 8, avx2);
+PEL_PROTOTYPE(epel_v48, 8, avx2);
+PEL_PROTOTYPE(epel_v64, 8, avx2);
+
+PEL_PROTOTYPE(epel_v16,10, avx2);
+PEL_PROTOTYPE(epel_v24,10, avx2);
+PEL_PROTOTYPE(epel_v32,10, avx2);
+PEL_PROTOTYPE(epel_v48,10, avx2);
+PEL_PROTOTYPE(epel_v64,10, avx2);
+
+PEL_PROTOTYPE(epel_hv16, 8, avx2);
+PEL_PROTOTYPE(epel_hv24, 8, avx2);
+PEL_PROTOTYPE(epel_hv32, 8, avx2);
+PEL_PROTOTYPE(epel_hv48, 8, avx2);
+PEL_PROTOTYPE(epel_hv64, 8, avx2);
+
+PEL_PROTOTYPE(epel_hv16,10, avx2);
+PEL_PROTOTYPE(epel_hv24,10, avx2);
+PEL_PROTOTYPE(epel_hv32,10, avx2);
+PEL_PROTOTYPE(epel_hv48,10, avx2);
+PEL_PROTOTYPE(epel_hv64,10, avx2);
+
+///////////////////////////////////////////////////////////////////////////////
+// QPEL
+///////////////////////////////////////////////////////////////////////////////
+QPEL_PROTOTYPES(qpel_h ,  8, sse4);
+QPEL_PROTOTYPES(qpel_h , 10, sse4);
+QPEL_PROTOTYPES(qpel_h , 12, sse4);
+
+QPEL_PROTOTYPES(qpel_v,  8, sse4);
+QPEL_PROTOTYPES(qpel_v, 10, sse4);
+QPEL_PROTOTYPES(qpel_v, 12, sse4);
+
+QPEL_PROTOTYPES(qpel_hv,  8, sse4);
+QPEL_PROTOTYPES(qpel_hv, 10, sse4);
+QPEL_PROTOTYPES(qpel_hv, 12, sse4);
+
+PEL_PROTOTYPE(qpel_h16, 8, avx2);
+PEL_PROTOTYPE(qpel_h24, 8, avx2);
+PEL_PROTOTYPE(qpel_h32, 8, avx2);
+PEL_PROTOTYPE(qpel_h48, 8, avx2);
+PEL_PROTOTYPE(qpel_h64, 8, avx2);
+
+PEL_PROTOTYPE(qpel_h16,10, avx2);
+PEL_PROTOTYPE(qpel_h24,10, avx2);
+PEL_PROTOTYPE(qpel_h32,10, avx2);
+PEL_PROTOTYPE(qpel_h48,10, avx2);
+PEL_PROTOTYPE(qpel_h64,10, avx2);
+
+PEL_PROTOTYPE(qpel_v16, 8, avx2);
+PEL_PROTOTYPE(qpel_v24, 8, avx2);
+PEL_PROTOTYPE(qpel_v32, 8, avx2);
+PEL_PROTOTYPE(qpel_v48, 8, avx2);
+PEL_PROTOTYPE(qpel_v64, 8, avx2);
+
+PEL_PROTOTYPE(qpel_v16,10, avx2);
+PEL_PROTOTYPE(qpel_v24,10, avx2);
+PEL_PROTOTYPE(qpel_v32,10, avx2);
+PEL_PROTOTYPE(qpel_v48,10, avx2);
+PEL_PROTOTYPE(qpel_v64,10, avx2);
+
+PEL_PROTOTYPE(qpel_hv16, 8, avx2);
+PEL_PROTOTYPE(qpel_hv24, 8, avx2);
+PEL_PROTOTYPE(qpel_hv32, 8, avx2);
+PEL_PROTOTYPE(qpel_hv48, 8, avx2);
+PEL_PROTOTYPE(qpel_hv64, 8, avx2);
+
+PEL_PROTOTYPE(qpel_hv16,10, avx2);
+PEL_PROTOTYPE(qpel_hv24,10, avx2);
+PEL_PROTOTYPE(qpel_hv32,10, avx2);
+PEL_PROTOTYPE(qpel_hv48,10, avx2);
+PEL_PROTOTYPE(qpel_hv64,10, avx2);
+
+WEIGHTING_PROTOTYPES(8, sse4);
+WEIGHTING_PROTOTYPES(10, sse4);
+WEIGHTING_PROTOTYPES(12, sse4);
+
+///////////////////////////////////////////////////////////////////////////////
+// TRANSFORM_ADD
+///////////////////////////////////////////////////////////////////////////////
+
+void ff_hevc_add_residual_4_8_mmxext(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+void ff_hevc_add_residual_8_8_sse2(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+void ff_hevc_add_residual_16_8_sse2(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+void ff_hevc_add_residual_32_8_sse2(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+
+void ff_hevc_add_residual_8_8_avx(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+void ff_hevc_add_residual_16_8_avx(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+void ff_hevc_add_residual_32_8_avx(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+
+void ff_hevc_add_residual_32_8_avx2(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+
+void ff_hevc_add_residual_4_10_mmxext(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+void ff_hevc_add_residual_8_10_sse2(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+void ff_hevc_add_residual_16_10_sse2(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+void ff_hevc_add_residual_32_10_sse2(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+
+void ff_hevc_add_residual_16_10_avx2(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+void ff_hevc_add_residual_32_10_avx2(uint8_t *dst, int16_t *res, ptrdiff_t stride);
+
+#endif // AVCODEC_X86_HEVCDSP_H
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hevcdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hevcdsp_init.c
new file mode 100644
index 000000000..17cd2332a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hevcdsp_init.c
@@ -0,0 +1,1151 @@
+/*
+ * Copyright (c) 2013 Seppo Tomperi
+ * Copyright (c) 2013 - 2014 Pierre-Edouard Lepere
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/get_bits.h" /* required for hevcdsp.h GetBitContext */
+#include "libavcodec/hevcdsp.h"
+#include "libavcodec/x86/hevcdsp.h"
+
+#define LFC_FUNC(DIR, DEPTH, OPT) \
+void ff_hevc_ ## DIR ## _loop_filter_chroma_ ## DEPTH ## _ ## OPT(uint8_t *pix, ptrdiff_t stride, int *tc, uint8_t *no_p, uint8_t *no_q);
+
+#define LFL_FUNC(DIR, DEPTH, OPT) \
+void ff_hevc_ ## DIR ## _loop_filter_luma_ ## DEPTH ## _ ## OPT(uint8_t *pix, ptrdiff_t stride, int beta, int *tc, uint8_t *no_p, uint8_t *no_q);
+
+#define LFC_FUNCS(type, depth, opt) \
+    LFC_FUNC(h, depth, opt)  \
+    LFC_FUNC(v, depth, opt)
+
+#define LFL_FUNCS(type, depth, opt) \
+    LFL_FUNC(h, depth, opt)  \
+    LFL_FUNC(v, depth, opt)
+
+LFC_FUNCS(uint8_t,   8, sse2)
+LFC_FUNCS(uint8_t,  10, sse2)
+LFC_FUNCS(uint8_t,  12, sse2)
+LFC_FUNCS(uint8_t,   8, avx)
+LFC_FUNCS(uint8_t,  10, avx)
+LFC_FUNCS(uint8_t,  12, avx)
+LFL_FUNCS(uint8_t,   8, sse2)
+LFL_FUNCS(uint8_t,  10, sse2)
+LFL_FUNCS(uint8_t,  12, sse2)
+LFL_FUNCS(uint8_t,   8, ssse3)
+LFL_FUNCS(uint8_t,  10, ssse3)
+LFL_FUNCS(uint8_t,  12, ssse3)
+LFL_FUNCS(uint8_t,   8, avx)
+LFL_FUNCS(uint8_t,  10, avx)
+LFL_FUNCS(uint8_t,  12, avx)
+
+#define IDCT_DC_FUNCS(W, opt) \
+void ff_hevc_idct_ ## W ## _dc_8_ ## opt(int16_t *coeffs); \
+void ff_hevc_idct_ ## W ## _dc_10_ ## opt(int16_t *coeffs); \
+void ff_hevc_idct_ ## W ## _dc_12_ ## opt(int16_t *coeffs)
+
+IDCT_DC_FUNCS(4x4,   mmxext);
+IDCT_DC_FUNCS(8x8,   mmxext);
+IDCT_DC_FUNCS(8x8,   sse2);
+IDCT_DC_FUNCS(16x16, sse2);
+IDCT_DC_FUNCS(32x32, sse2);
+IDCT_DC_FUNCS(16x16, avx2);
+IDCT_DC_FUNCS(32x32, avx2);
+
+#define IDCT_FUNCS(opt)                                             \
+void ff_hevc_idct_4x4_8_    ## opt(int16_t *coeffs, int col_limit); \
+void ff_hevc_idct_4x4_10_   ## opt(int16_t *coeffs, int col_limit); \
+void ff_hevc_idct_8x8_8_    ## opt(int16_t *coeffs, int col_limit); \
+void ff_hevc_idct_8x8_10_   ## opt(int16_t *coeffs, int col_limit); \
+void ff_hevc_idct_16x16_8_  ## opt(int16_t *coeffs, int col_limit); \
+void ff_hevc_idct_16x16_10_ ## opt(int16_t *coeffs, int col_limit); \
+void ff_hevc_idct_32x32_8_  ## opt(int16_t *coeffs, int col_limit); \
+void ff_hevc_idct_32x32_10_ ## opt(int16_t *coeffs, int col_limit);
+
+IDCT_FUNCS(sse2)
+IDCT_FUNCS(avx)
+
+#define mc_rep_func(name, bitd, step, W, opt) \
+void ff_hevc_put_hevc_##name##W##_##bitd##_##opt(int16_t *_dst,                                                 \
+                                                uint8_t *_src, ptrdiff_t _srcstride, int height,                \
+                                                intptr_t mx, intptr_t my, int width)                            \
+{                                                                                                               \
+    int i;                                                                                                      \
+    uint8_t *src;                                                                                               \
+    int16_t *dst;                                                                                               \
+    for (i = 0; i < W; i += step) {                                                                             \
+        src  = _src + (i * ((bitd + 7) / 8));                                                                   \
+        dst = _dst + i;                                                                                         \
+        ff_hevc_put_hevc_##name##step##_##bitd##_##opt(dst, src, _srcstride, height, mx, my, width);            \
+    }                                                                                                           \
+}
+#define mc_rep_uni_func(name, bitd, step, W, opt) \
+void ff_hevc_put_hevc_uni_##name##W##_##bitd##_##opt(uint8_t *_dst, ptrdiff_t dststride,                        \
+                                                    uint8_t *_src, ptrdiff_t _srcstride, int height,            \
+                                                    intptr_t mx, intptr_t my, int width)                        \
+{                                                                                                               \
+    int i;                                                                                                      \
+    uint8_t *src;                                                                                               \
+    uint8_t *dst;                                                                                               \
+    for (i = 0; i < W; i += step) {                                                                             \
+        src = _src + (i * ((bitd + 7) / 8));                                                                    \
+        dst = _dst + (i * ((bitd + 7) / 8));                                                                    \
+        ff_hevc_put_hevc_uni_##name##step##_##bitd##_##opt(dst, dststride, src, _srcstride,                     \
+                                                          height, mx, my, width);                               \
+    }                                                                                                           \
+}
+#define mc_rep_bi_func(name, bitd, step, W, opt) \
+void ff_hevc_put_hevc_bi_##name##W##_##bitd##_##opt(uint8_t *_dst, ptrdiff_t dststride, uint8_t *_src,          \
+                                                   ptrdiff_t _srcstride, int16_t* _src2,                        \
+                                                   int height, intptr_t mx, intptr_t my, int width)             \
+{                                                                                                               \
+    int i;                                                                                                      \
+    uint8_t  *src;                                                                                              \
+    uint8_t  *dst;                                                                                              \
+    int16_t  *src2;                                                                                             \
+    for (i = 0; i < W ; i += step) {                                                                            \
+        src  = _src + (i * ((bitd + 7) / 8));                                                                   \
+        dst  = _dst + (i * ((bitd + 7) / 8));                                                                   \
+        src2 = _src2 + i;                                                                                       \
+        ff_hevc_put_hevc_bi_##name##step##_##bitd##_##opt(dst, dststride, src, _srcstride, src2,                \
+                                                          height, mx, my, width);                               \
+    }                                                                                                           \
+}
+
+#define mc_rep_funcs(name, bitd, step, W, opt)        \
+    mc_rep_func(name, bitd, step, W, opt)            \
+    mc_rep_uni_func(name, bitd, step, W, opt)        \
+    mc_rep_bi_func(name, bitd, step, W, opt)
+
+#define mc_rep_func2(name, bitd, step1, step2, W, opt) \
+void ff_hevc_put_hevc_##name##W##_##bitd##_##opt(int16_t *dst,                                                  \
+                                                 uint8_t *src, ptrdiff_t _srcstride, int height,                \
+                                                 intptr_t mx, intptr_t my, int width)                           \
+{                                                                                                               \
+    ff_hevc_put_hevc_##name##step1##_##bitd##_##opt(dst, src, _srcstride, height, mx, my, width);               \
+    ff_hevc_put_hevc_##name##step2##_##bitd##_##opt(dst + step1, src + (step1 * ((bitd + 7) / 8)),              \
+                                                    _srcstride, height, mx, my, width);                         \
+}
+#define mc_rep_uni_func2(name, bitd, step1, step2, W, opt) \
+void ff_hevc_put_hevc_uni_##name##W##_##bitd##_##opt(uint8_t *dst, ptrdiff_t dststride,                         \
+                                                     uint8_t *src, ptrdiff_t _srcstride, int height,            \
+                                                     intptr_t mx, intptr_t my, int width)                       \
+{                                                                                                               \
+    ff_hevc_put_hevc_uni_##name##step1##_##bitd##_##opt(dst, dststride, src, _srcstride, height, mx, my, width);\
+    ff_hevc_put_hevc_uni_##name##step2##_##bitd##_##opt(dst + (step1 * ((bitd + 7) / 8)), dststride,            \
+                                                        src + (step1 * ((bitd + 7) / 8)), _srcstride,           \
+                                                        height, mx, my, width);                                 \
+}
+#define mc_rep_bi_func2(name, bitd, step1, step2, W, opt) \
+void ff_hevc_put_hevc_bi_##name##W##_##bitd##_##opt(uint8_t *dst, ptrdiff_t dststride, uint8_t *src,            \
+                                                    ptrdiff_t _srcstride, int16_t* src2,                        \
+                                                    int height, intptr_t mx, intptr_t my, int width)            \
+{                                                                                                               \
+    ff_hevc_put_hevc_bi_##name##step1##_##bitd##_##opt(dst, dststride, src, _srcstride, src2, height, mx, my, width);\
+    ff_hevc_put_hevc_bi_##name##step2##_##bitd##_##opt(dst + (step1 * ((bitd + 7) / 8)), dststride,             \
+                                                       src + (step1 * ((bitd + 7) / 8)), _srcstride,            \
+                                                       src2 + step1, height, mx, my, width);                    \
+}
+
+#define mc_rep_funcs2(name, bitd, step1, step2, W, opt) \
+    mc_rep_func2(name, bitd, step1, step2, W, opt)      \
+    mc_rep_uni_func2(name, bitd, step1, step2, W, opt)  \
+    mc_rep_bi_func2(name, bitd, step1, step2, W, opt)
+
+#if ARCH_X86_64 && HAVE_SSE4_EXTERNAL
+
+#define mc_rep_mix_10(name, width1, width2, width3, opt1, opt2, width4)                                       \
+void ff_hevc_put_hevc_##name##width1##_10_##opt1(int16_t *dst, uint8_t *src, ptrdiff_t _srcstride,            \
+                                                 int height, intptr_t mx, intptr_t my, int width)             \
+                                                                                                              \
+{                                                                                                             \
+    ff_hevc_put_hevc_##name##width2##_10_##opt1(dst, src, _srcstride, height, mx, my, width);                 \
+    ff_hevc_put_hevc_##name##width3##_10_##opt2(dst+ width2, src+ width4, _srcstride, height, mx, my, width); \
+}
+
+#define mc_bi_rep_mix_10(name, width1, width2, width3, opt1, opt2, width4)                                    \
+void ff_hevc_put_hevc_bi_##name##width1##_10_##opt1(uint8_t *dst, ptrdiff_t dststride, uint8_t *src,          \
+                                                    ptrdiff_t _srcstride, int16_t *src2,                      \
+                                                    int height, intptr_t mx, intptr_t my, int width)          \
+{                                                                                                             \
+    ff_hevc_put_hevc_bi_##name##width2##_10_##opt1(dst, dststride, src, _srcstride, src2,                     \
+                                                   height, mx, my, width);                                    \
+    ff_hevc_put_hevc_bi_##name##width3##_10_##opt2(dst+width4, dststride, src+width4, _srcstride, src2+width2,\
+                                                   height, mx, my, width);                                    \
+}
+
+#define mc_uni_rep_mix_10(name, width1, width2, width3, opt1, opt2, width4)                                   \
+void ff_hevc_put_hevc_uni_##name##width1##_10_##opt1(uint8_t *dst, ptrdiff_t dststride,                       \
+                                                     uint8_t *src, ptrdiff_t _srcstride, int height,          \
+                                                     intptr_t mx, intptr_t my, int width)                     \
+{                                                                                                             \
+    ff_hevc_put_hevc_uni_##name##width2##_10_##opt1(dst, dststride, src, _srcstride,                          \
+                                                      height, mx, my, width);                                 \
+    ff_hevc_put_hevc_uni_##name##width3##_10_##opt2(dst+width4, dststride, src+width4, _srcstride,            \
+                                                      height, mx, my, width);                                 \
+}
+
+#define mc_rep_mixs_10(name, width1, width2, width3, opt1, opt2, width4)   \
+mc_rep_mix_10(name, width1, width2, width3, opt1, opt2, width4)            \
+mc_bi_rep_mix_10(name, width1, width2, width3, opt1, opt2, width4)         \
+mc_uni_rep_mix_10(name, width1, width2, width3, opt1, opt2, width4)
+
+#define mc_rep_mix_8(name, width1, width2, width3, opt1, opt2)                                                \
+void ff_hevc_put_hevc_##name##width1##_8_##opt1(int16_t *dst, uint8_t *src, ptrdiff_t _srcstride,             \
+                                                int height, intptr_t mx, intptr_t my, int width)              \
+                                                                                                              \
+{                                                                                                             \
+    ff_hevc_put_hevc_##name##width2##_8_##opt1(dst, src, _srcstride, height, mx, my, width);                  \
+    ff_hevc_put_hevc_##name##width3##_8_##opt2(dst+ width2, src+ width2, _srcstride, height, mx, my, width);  \
+}
+
+#define mc_bi_rep_mix_8(name, width1, width2, width3, opt1, opt2)                                             \
+void ff_hevc_put_hevc_bi_##name##width1##_8_##opt1(uint8_t *dst, ptrdiff_t dststride, uint8_t *src,           \
+                                                   ptrdiff_t _srcstride, int16_t* src2,                       \
+                                                   int height, intptr_t mx, intptr_t my, int width)           \
+{                                                                                                             \
+    ff_hevc_put_hevc_bi_##name##width2##_8_##opt1(dst, dststride, src, _srcstride,                            \
+                                                  src2, height, mx, my, width);                               \
+    ff_hevc_put_hevc_bi_##name##width3##_8_##opt2(dst+width2, dststride, src+width2, _srcstride,              \
+                                                  src2+width2, height, mx, my, width);                        \
+}
+
+#define mc_uni_rep_mix_8(name, width1, width2, width3, opt1, opt2)                                            \
+void ff_hevc_put_hevc_uni_##name##width1##_8_##opt1(uint8_t *dst, ptrdiff_t dststride,                        \
+                                                    uint8_t *src, ptrdiff_t _srcstride, int height,           \
+                                                    intptr_t mx, intptr_t my, int width)                      \
+{                                                                                                             \
+    ff_hevc_put_hevc_uni_##name##width2##_8_##opt1(dst, dststride, src, _srcstride,                           \
+                                                   height, mx, my, width);                                    \
+    ff_hevc_put_hevc_uni_##name##width3##_8_##opt2(dst+width2, dststride, src+width2, _srcstride,             \
+                                                   height, mx, my, width);                                    \
+}
+
+#define mc_rep_mixs_8(name, width1, width2, width3, opt1, opt2)   \
+mc_rep_mix_8(name, width1, width2, width3, opt1, opt2)            \
+mc_bi_rep_mix_8(name, width1, width2, width3, opt1, opt2)         \
+mc_uni_rep_mix_8(name, width1, width2, width3, opt1, opt2)
+
+#if HAVE_AVX2_EXTERNAL
+
+mc_rep_mixs_8(pel_pixels, 48, 32, 16, avx2, sse4)
+mc_rep_mixs_8(epel_hv,    48, 32, 16, avx2, sse4)
+mc_rep_mixs_8(epel_h ,    48, 32, 16, avx2, sse4)
+mc_rep_mixs_8(epel_v ,    48, 32, 16, avx2, sse4)
+
+mc_rep_mix_10(pel_pixels, 24, 16, 8, avx2, sse4, 32)
+mc_bi_rep_mix_10(pel_pixels,24, 16, 8, avx2, sse4, 32)
+mc_rep_mixs_10(epel_hv,   24, 16, 8, avx2, sse4, 32)
+mc_rep_mixs_10(epel_h ,   24, 16, 8, avx2, sse4, 32)
+mc_rep_mixs_10(epel_v ,   24, 16, 8, avx2, sse4, 32)
+
+
+mc_rep_mixs_10(qpel_h ,   24, 16, 8, avx2, sse4, 32)
+mc_rep_mixs_10(qpel_v ,   24, 16, 8, avx2, sse4, 32)
+mc_rep_mixs_10(qpel_hv,   24, 16, 8, avx2, sse4, 32)
+
+
+mc_rep_uni_func(pel_pixels, 8, 64, 128, avx2)//used for 10bit
+mc_rep_uni_func(pel_pixels, 8, 32, 96, avx2) //used for 10bit
+
+mc_rep_funcs(pel_pixels, 8, 32, 64, avx2)
+
+mc_rep_func(pel_pixels, 10, 16, 32, avx2)
+mc_rep_func(pel_pixels, 10, 16, 48, avx2)
+mc_rep_func(pel_pixels, 10, 32, 64, avx2)
+
+mc_rep_bi_func(pel_pixels, 10, 16, 32, avx2)
+mc_rep_bi_func(pel_pixels, 10, 16, 48, avx2)
+mc_rep_bi_func(pel_pixels, 10, 32, 64, avx2)
+
+mc_rep_funcs(epel_h, 8, 32, 64, avx2)
+
+mc_rep_funcs(epel_v, 8, 32, 64, avx2)
+
+mc_rep_funcs(epel_h, 10, 16, 32, avx2)
+mc_rep_funcs(epel_h, 10, 16, 48, avx2)
+mc_rep_funcs(epel_h, 10, 32, 64, avx2)
+
+mc_rep_funcs(epel_v, 10, 16, 32, avx2)
+mc_rep_funcs(epel_v, 10, 16, 48, avx2)
+mc_rep_funcs(epel_v, 10, 32, 64, avx2)
+
+
+mc_rep_funcs(epel_hv,  8, 32, 64, avx2)
+
+mc_rep_funcs(epel_hv, 10, 16, 32, avx2)
+mc_rep_funcs(epel_hv, 10, 16, 48, avx2)
+mc_rep_funcs(epel_hv, 10, 32, 64, avx2)
+
+mc_rep_funcs(qpel_h, 8, 32, 64, avx2)
+mc_rep_mixs_8(qpel_h ,  48, 32, 16, avx2, sse4)
+
+mc_rep_funcs(qpel_v, 8, 32, 64, avx2)
+mc_rep_mixs_8(qpel_v,  48, 32, 16, avx2, sse4)
+
+mc_rep_funcs(qpel_h, 10, 16, 32, avx2)
+mc_rep_funcs(qpel_h, 10, 16, 48, avx2)
+mc_rep_funcs(qpel_h, 10, 32, 64, avx2)
+
+mc_rep_funcs(qpel_v, 10, 16, 32, avx2)
+mc_rep_funcs(qpel_v, 10, 16, 48, avx2)
+mc_rep_funcs(qpel_v, 10, 32, 64, avx2)
+
+mc_rep_funcs(qpel_hv, 10, 16, 32, avx2)
+mc_rep_funcs(qpel_hv, 10, 16, 48, avx2)
+mc_rep_funcs(qpel_hv, 10, 32, 64, avx2)
+
+#endif //AVX2
+
+mc_rep_funcs(pel_pixels, 8, 16, 64, sse4)
+mc_rep_funcs(pel_pixels, 8, 16, 48, sse4)
+mc_rep_funcs(pel_pixels, 8, 16, 32, sse4)
+mc_rep_funcs(pel_pixels, 8,  8, 24, sse4)
+mc_rep_funcs(pel_pixels,10,  8, 64, sse4)
+mc_rep_funcs(pel_pixels,10,  8, 48, sse4)
+mc_rep_funcs(pel_pixels,10,  8, 32, sse4)
+mc_rep_funcs(pel_pixels,10,  8, 24, sse4)
+mc_rep_funcs(pel_pixels,10,  8, 16, sse4)
+mc_rep_funcs(pel_pixels,10,  4, 12, sse4)
+mc_rep_funcs(pel_pixels,12,  8, 64, sse4)
+mc_rep_funcs(pel_pixels,12,  8, 48, sse4)
+mc_rep_funcs(pel_pixels,12,  8, 32, sse4)
+mc_rep_funcs(pel_pixels,12,  8, 24, sse4)
+mc_rep_funcs(pel_pixels,12,  8, 16, sse4)
+mc_rep_funcs(pel_pixels,12,  4, 12, sse4)
+
+mc_rep_funcs(epel_h, 8, 16, 64, sse4)
+mc_rep_funcs(epel_h, 8, 16, 48, sse4)
+mc_rep_funcs(epel_h, 8, 16, 32, sse4)
+mc_rep_funcs(epel_h, 8,  8, 24, sse4)
+mc_rep_funcs(epel_h,10,  8, 64, sse4)
+mc_rep_funcs(epel_h,10,  8, 48, sse4)
+mc_rep_funcs(epel_h,10,  8, 32, sse4)
+mc_rep_funcs(epel_h,10,  8, 24, sse4)
+mc_rep_funcs(epel_h,10,  8, 16, sse4)
+mc_rep_funcs(epel_h,10,  4, 12, sse4)
+mc_rep_funcs(epel_h,12,  8, 64, sse4)
+mc_rep_funcs(epel_h,12,  8, 48, sse4)
+mc_rep_funcs(epel_h,12,  8, 32, sse4)
+mc_rep_funcs(epel_h,12,  8, 24, sse4)
+mc_rep_funcs(epel_h,12,  8, 16, sse4)
+mc_rep_funcs(epel_h,12,  4, 12, sse4)
+mc_rep_funcs(epel_v, 8, 16, 64, sse4)
+mc_rep_funcs(epel_v, 8, 16, 48, sse4)
+mc_rep_funcs(epel_v, 8, 16, 32, sse4)
+mc_rep_funcs(epel_v, 8,  8, 24, sse4)
+mc_rep_funcs(epel_v,10,  8, 64, sse4)
+mc_rep_funcs(epel_v,10,  8, 48, sse4)
+mc_rep_funcs(epel_v,10,  8, 32, sse4)
+mc_rep_funcs(epel_v,10,  8, 24, sse4)
+mc_rep_funcs(epel_v,10,  8, 16, sse4)
+mc_rep_funcs(epel_v,10,  4, 12, sse4)
+mc_rep_funcs(epel_v,12,  8, 64, sse4)
+mc_rep_funcs(epel_v,12,  8, 48, sse4)
+mc_rep_funcs(epel_v,12,  8, 32, sse4)
+mc_rep_funcs(epel_v,12,  8, 24, sse4)
+mc_rep_funcs(epel_v,12,  8, 16, sse4)
+mc_rep_funcs(epel_v,12,  4, 12, sse4)
+mc_rep_funcs(epel_hv, 8, 16, 64, sse4)
+mc_rep_funcs(epel_hv, 8, 16, 48, sse4)
+mc_rep_funcs(epel_hv, 8, 16, 32, sse4)
+mc_rep_funcs(epel_hv, 8,  8, 24, sse4)
+mc_rep_funcs2(epel_hv,8,  8,  4, 12, sse4)
+mc_rep_funcs(epel_hv,10,  8, 64, sse4)
+mc_rep_funcs(epel_hv,10,  8, 48, sse4)
+mc_rep_funcs(epel_hv,10,  8, 32, sse4)
+mc_rep_funcs(epel_hv,10,  8, 24, sse4)
+mc_rep_funcs(epel_hv,10,  8, 16, sse4)
+mc_rep_funcs(epel_hv,10,  4, 12, sse4)
+mc_rep_funcs(epel_hv,12,  8, 64, sse4)
+mc_rep_funcs(epel_hv,12,  8, 48, sse4)
+mc_rep_funcs(epel_hv,12,  8, 32, sse4)
+mc_rep_funcs(epel_hv,12,  8, 24, sse4)
+mc_rep_funcs(epel_hv,12,  8, 16, sse4)
+mc_rep_funcs(epel_hv,12,  4, 12, sse4)
+
+mc_rep_funcs(qpel_h, 8, 16, 64, sse4)
+mc_rep_funcs(qpel_h, 8, 16, 48, sse4)
+mc_rep_funcs(qpel_h, 8, 16, 32, sse4)
+mc_rep_funcs(qpel_h, 8,  8, 24, sse4)
+mc_rep_funcs(qpel_h,10,  8, 64, sse4)
+mc_rep_funcs(qpel_h,10,  8, 48, sse4)
+mc_rep_funcs(qpel_h,10,  8, 32, sse4)
+mc_rep_funcs(qpel_h,10,  8, 24, sse4)
+mc_rep_funcs(qpel_h,10,  8, 16, sse4)
+mc_rep_funcs(qpel_h,10,  4, 12, sse4)
+mc_rep_funcs(qpel_h,12,  8, 64, sse4)
+mc_rep_funcs(qpel_h,12,  8, 48, sse4)
+mc_rep_funcs(qpel_h,12,  8, 32, sse4)
+mc_rep_funcs(qpel_h,12,  8, 24, sse4)
+mc_rep_funcs(qpel_h,12,  8, 16, sse4)
+mc_rep_funcs(qpel_h,12,  4, 12, sse4)
+mc_rep_funcs(qpel_v, 8, 16, 64, sse4)
+mc_rep_funcs(qpel_v, 8, 16, 48, sse4)
+mc_rep_funcs(qpel_v, 8, 16, 32, sse4)
+mc_rep_funcs(qpel_v, 8,  8, 24, sse4)
+mc_rep_funcs(qpel_v,10,  8, 64, sse4)
+mc_rep_funcs(qpel_v,10,  8, 48, sse4)
+mc_rep_funcs(qpel_v,10,  8, 32, sse4)
+mc_rep_funcs(qpel_v,10,  8, 24, sse4)
+mc_rep_funcs(qpel_v,10,  8, 16, sse4)
+mc_rep_funcs(qpel_v,10,  4, 12, sse4)
+mc_rep_funcs(qpel_v,12,  8, 64, sse4)
+mc_rep_funcs(qpel_v,12,  8, 48, sse4)
+mc_rep_funcs(qpel_v,12,  8, 32, sse4)
+mc_rep_funcs(qpel_v,12,  8, 24, sse4)
+mc_rep_funcs(qpel_v,12,  8, 16, sse4)
+mc_rep_funcs(qpel_v,12,  4, 12, sse4)
+mc_rep_funcs(qpel_hv, 8,  8, 64, sse4)
+mc_rep_funcs(qpel_hv, 8,  8, 48, sse4)
+mc_rep_funcs(qpel_hv, 8,  8, 32, sse4)
+mc_rep_funcs(qpel_hv, 8,  8, 24, sse4)
+mc_rep_funcs(qpel_hv, 8,  8, 16, sse4)
+mc_rep_funcs2(qpel_hv,8,  8,  4, 12, sse4)
+mc_rep_funcs(qpel_hv,10,  8, 64, sse4)
+mc_rep_funcs(qpel_hv,10,  8, 48, sse4)
+mc_rep_funcs(qpel_hv,10,  8, 32, sse4)
+mc_rep_funcs(qpel_hv,10,  8, 24, sse4)
+mc_rep_funcs(qpel_hv,10,  8, 16, sse4)
+mc_rep_funcs(qpel_hv,10,  4, 12, sse4)
+mc_rep_funcs(qpel_hv,12,  8, 64, sse4)
+mc_rep_funcs(qpel_hv,12,  8, 48, sse4)
+mc_rep_funcs(qpel_hv,12,  8, 32, sse4)
+mc_rep_funcs(qpel_hv,12,  8, 24, sse4)
+mc_rep_funcs(qpel_hv,12,  8, 16, sse4)
+mc_rep_funcs(qpel_hv,12,  4, 12, sse4)
+
+#define mc_rep_uni_w(bitd, step, W, opt) \
+void ff_hevc_put_hevc_uni_w##W##_##bitd##_##opt(uint8_t *_dst, ptrdiff_t dststride, int16_t *_src, \
+                                               int height, int denom,  int _wx, int _ox)                                \
+{                                                                                                                       \
+    int i;                                                                                                              \
+    int16_t *src;                                                                                                       \
+    uint8_t *dst;                                                                                                       \
+    for (i = 0; i < W; i += step) {                                                                                     \
+        src= _src + i;                                                                                                  \
+        dst= _dst + (i * ((bitd + 7) / 8));                                                                             \
+        ff_hevc_put_hevc_uni_w##step##_##bitd##_##opt(dst, dststride, src,                                   \
+                                                     height, denom, _wx, _ox);                                          \
+    }                                                                                                                   \
+}
+
+mc_rep_uni_w(8, 6, 12, sse4)
+mc_rep_uni_w(8, 8, 16, sse4)
+mc_rep_uni_w(8, 8, 24, sse4)
+mc_rep_uni_w(8, 8, 32, sse4)
+mc_rep_uni_w(8, 8, 48, sse4)
+mc_rep_uni_w(8, 8, 64, sse4)
+
+mc_rep_uni_w(10, 6, 12, sse4)
+mc_rep_uni_w(10, 8, 16, sse4)
+mc_rep_uni_w(10, 8, 24, sse4)
+mc_rep_uni_w(10, 8, 32, sse4)
+mc_rep_uni_w(10, 8, 48, sse4)
+mc_rep_uni_w(10, 8, 64, sse4)
+
+mc_rep_uni_w(12, 6, 12, sse4)
+mc_rep_uni_w(12, 8, 16, sse4)
+mc_rep_uni_w(12, 8, 24, sse4)
+mc_rep_uni_w(12, 8, 32, sse4)
+mc_rep_uni_w(12, 8, 48, sse4)
+mc_rep_uni_w(12, 8, 64, sse4)
+
+#define mc_rep_bi_w(bitd, step, W, opt) \
+void ff_hevc_put_hevc_bi_w##W##_##bitd##_##opt(uint8_t *_dst, ptrdiff_t dststride, int16_t *_src, \
+                                              int16_t *_src2, int height,                                               \
+                                              int denom,  int _wx0,  int _wx1, int _ox0, int _ox1)                      \
+{                                                                                                                       \
+    int i;                                                                                                              \
+    int16_t *src;                                                                                                       \
+    int16_t *src2;                                                                                                      \
+    uint8_t *dst;                                                                                                       \
+    for (i = 0; i < W; i += step) {                                                                                     \
+        src  = _src  + i;                                                                                               \
+        src2 = _src2 + i;                                                                                               \
+        dst  = _dst  + (i * ((bitd + 7) / 8));                                                                          \
+        ff_hevc_put_hevc_bi_w##step##_##bitd##_##opt(dst, dststride, src, src2,                             \
+                                                     height, denom, _wx0, _wx1, _ox0, _ox1);                             \
+    }                                                                                                                   \
+}
+
+mc_rep_bi_w(8, 6, 12, sse4)
+mc_rep_bi_w(8, 8, 16, sse4)
+mc_rep_bi_w(8, 8, 24, sse4)
+mc_rep_bi_w(8, 8, 32, sse4)
+mc_rep_bi_w(8, 8, 48, sse4)
+mc_rep_bi_w(8, 8, 64, sse4)
+
+mc_rep_bi_w(10, 6, 12, sse4)
+mc_rep_bi_w(10, 8, 16, sse4)
+mc_rep_bi_w(10, 8, 24, sse4)
+mc_rep_bi_w(10, 8, 32, sse4)
+mc_rep_bi_w(10, 8, 48, sse4)
+mc_rep_bi_w(10, 8, 64, sse4)
+
+mc_rep_bi_w(12, 6, 12, sse4)
+mc_rep_bi_w(12, 8, 16, sse4)
+mc_rep_bi_w(12, 8, 24, sse4)
+mc_rep_bi_w(12, 8, 32, sse4)
+mc_rep_bi_w(12, 8, 48, sse4)
+mc_rep_bi_w(12, 8, 64, sse4)
+
+#define mc_uni_w_func(name, bitd, W, opt) \
+void ff_hevc_put_hevc_uni_w_##name##W##_##bitd##_##opt(uint8_t *_dst, ptrdiff_t _dststride,         \
+                                                      uint8_t *_src, ptrdiff_t _srcstride,          \
+                                                      int height, int denom,                        \
+                                                      int _wx, int _ox,                             \
+                                                      intptr_t mx, intptr_t my, int width)          \
+{                                                                                                   \
+    LOCAL_ALIGNED_16(int16_t, temp, [71 * MAX_PB_SIZE]);                                            \
+    ff_hevc_put_hevc_##name##W##_##bitd##_##opt(temp, _src, _srcstride, height, mx, my, width);     \
+    ff_hevc_put_hevc_uni_w##W##_##bitd##_##opt(_dst, _dststride, temp, height, denom, _wx, _ox);\
+}
+
+#define mc_uni_w_funcs(name, bitd, opt)      \
+        mc_uni_w_func(name, bitd, 4, opt)    \
+        mc_uni_w_func(name, bitd, 8, opt)    \
+        mc_uni_w_func(name, bitd, 12, opt)   \
+        mc_uni_w_func(name, bitd, 16, opt)   \
+        mc_uni_w_func(name, bitd, 24, opt)   \
+        mc_uni_w_func(name, bitd, 32, opt)   \
+        mc_uni_w_func(name, bitd, 48, opt)   \
+        mc_uni_w_func(name, bitd, 64, opt)
+
+mc_uni_w_funcs(pel_pixels, 8, sse4)
+mc_uni_w_func(pel_pixels, 8, 6, sse4)
+mc_uni_w_funcs(epel_h, 8, sse4)
+mc_uni_w_func(epel_h, 8, 6, sse4)
+mc_uni_w_funcs(epel_v, 8, sse4)
+mc_uni_w_func(epel_v, 8, 6, sse4)
+mc_uni_w_funcs(epel_hv, 8, sse4)
+mc_uni_w_func(epel_hv, 8, 6, sse4)
+mc_uni_w_funcs(qpel_h, 8, sse4)
+mc_uni_w_funcs(qpel_v, 8, sse4)
+mc_uni_w_funcs(qpel_hv, 8, sse4)
+
+mc_uni_w_funcs(pel_pixels, 10, sse4)
+mc_uni_w_func(pel_pixels, 10, 6, sse4)
+mc_uni_w_funcs(epel_h, 10, sse4)
+mc_uni_w_func(epel_h, 10, 6, sse4)
+mc_uni_w_funcs(epel_v, 10, sse4)
+mc_uni_w_func(epel_v, 10, 6, sse4)
+mc_uni_w_funcs(epel_hv, 10, sse4)
+mc_uni_w_func(epel_hv, 10, 6, sse4)
+mc_uni_w_funcs(qpel_h, 10, sse4)
+mc_uni_w_funcs(qpel_v, 10, sse4)
+mc_uni_w_funcs(qpel_hv, 10, sse4)
+
+mc_uni_w_funcs(pel_pixels, 12, sse4)
+mc_uni_w_func(pel_pixels, 12, 6, sse4)
+mc_uni_w_funcs(epel_h, 12, sse4)
+mc_uni_w_func(epel_h, 12, 6, sse4)
+mc_uni_w_funcs(epel_v, 12, sse4)
+mc_uni_w_func(epel_v, 12, 6, sse4)
+mc_uni_w_funcs(epel_hv, 12, sse4)
+mc_uni_w_func(epel_hv, 12, 6, sse4)
+mc_uni_w_funcs(qpel_h, 12, sse4)
+mc_uni_w_funcs(qpel_v, 12, sse4)
+mc_uni_w_funcs(qpel_hv, 12, sse4)
+
+#define mc_bi_w_func(name, bitd, W, opt) \
+void ff_hevc_put_hevc_bi_w_##name##W##_##bitd##_##opt(uint8_t *_dst, ptrdiff_t _dststride,           \
+                                                     uint8_t *_src, ptrdiff_t _srcstride,            \
+                                                     int16_t *_src2,                                 \
+                                                     int height, int denom,                          \
+                                                     int _wx0, int _wx1, int _ox0, int _ox1,         \
+                                                     intptr_t mx, intptr_t my, int width)            \
+{                                                                                                    \
+    LOCAL_ALIGNED_16(int16_t, temp, [71 * MAX_PB_SIZE]);                                             \
+    ff_hevc_put_hevc_##name##W##_##bitd##_##opt(temp, _src, _srcstride, height, mx, my, width);      \
+    ff_hevc_put_hevc_bi_w##W##_##bitd##_##opt(_dst, _dststride, temp, _src2,                         \
+                                              height, denom, _wx0, _wx1, _ox0, _ox1);                \
+}
+
+#define mc_bi_w_funcs(name, bitd, opt)      \
+        mc_bi_w_func(name, bitd, 4, opt)    \
+        mc_bi_w_func(name, bitd, 8, opt)    \
+        mc_bi_w_func(name, bitd, 12, opt)   \
+        mc_bi_w_func(name, bitd, 16, opt)   \
+        mc_bi_w_func(name, bitd, 24, opt)   \
+        mc_bi_w_func(name, bitd, 32, opt)   \
+        mc_bi_w_func(name, bitd, 48, opt)   \
+        mc_bi_w_func(name, bitd, 64, opt)
+
+mc_bi_w_funcs(pel_pixels, 8, sse4)
+mc_bi_w_func(pel_pixels, 8, 6, sse4)
+mc_bi_w_funcs(epel_h, 8, sse4)
+mc_bi_w_func(epel_h, 8, 6, sse4)
+mc_bi_w_funcs(epel_v, 8, sse4)
+mc_bi_w_func(epel_v, 8, 6, sse4)
+mc_bi_w_funcs(epel_hv, 8, sse4)
+mc_bi_w_func(epel_hv, 8, 6, sse4)
+mc_bi_w_funcs(qpel_h, 8, sse4)
+mc_bi_w_funcs(qpel_v, 8, sse4)
+mc_bi_w_funcs(qpel_hv, 8, sse4)
+
+mc_bi_w_funcs(pel_pixels, 10, sse4)
+mc_bi_w_func(pel_pixels, 10, 6, sse4)
+mc_bi_w_funcs(epel_h, 10, sse4)
+mc_bi_w_func(epel_h, 10, 6, sse4)
+mc_bi_w_funcs(epel_v, 10, sse4)
+mc_bi_w_func(epel_v, 10, 6, sse4)
+mc_bi_w_funcs(epel_hv, 10, sse4)
+mc_bi_w_func(epel_hv, 10, 6, sse4)
+mc_bi_w_funcs(qpel_h, 10, sse4)
+mc_bi_w_funcs(qpel_v, 10, sse4)
+mc_bi_w_funcs(qpel_hv, 10, sse4)
+
+mc_bi_w_funcs(pel_pixels, 12, sse4)
+mc_bi_w_func(pel_pixels, 12, 6, sse4)
+mc_bi_w_funcs(epel_h, 12, sse4)
+mc_bi_w_func(epel_h, 12, 6, sse4)
+mc_bi_w_funcs(epel_v, 12, sse4)
+mc_bi_w_func(epel_v, 12, 6, sse4)
+mc_bi_w_funcs(epel_hv, 12, sse4)
+mc_bi_w_func(epel_hv, 12, 6, sse4)
+mc_bi_w_funcs(qpel_h, 12, sse4)
+mc_bi_w_funcs(qpel_v, 12, sse4)
+mc_bi_w_funcs(qpel_hv, 12, sse4)
+#endif //ARCH_X86_64 && HAVE_SSE4_EXTERNAL
+
+#define SAO_BAND_FILTER_FUNCS(bitd, opt)                                                                                   \
+void ff_hevc_sao_band_filter_8_##bitd##_##opt(uint8_t *_dst, uint8_t *_src, ptrdiff_t _stride_dst, ptrdiff_t _stride_src,  \
+                                            int16_t *sao_offset_val, int sao_left_class, int width, int height);           \
+void ff_hevc_sao_band_filter_16_##bitd##_##opt(uint8_t *_dst, uint8_t *_src, ptrdiff_t _stride_dst, ptrdiff_t _stride_src, \
+                                            int16_t *sao_offset_val, int sao_left_class, int width, int height);           \
+void ff_hevc_sao_band_filter_32_##bitd##_##opt(uint8_t *_dst, uint8_t *_src, ptrdiff_t _stride_dst, ptrdiff_t _stride_src, \
+                                            int16_t *sao_offset_val, int sao_left_class, int width, int height);           \
+void ff_hevc_sao_band_filter_48_##bitd##_##opt(uint8_t *_dst, uint8_t *_src, ptrdiff_t _stride_dst, ptrdiff_t _stride_src, \
+                                            int16_t *sao_offset_val, int sao_left_class, int width, int height);           \
+void ff_hevc_sao_band_filter_64_##bitd##_##opt(uint8_t *_dst, uint8_t *_src, ptrdiff_t _stride_dst, ptrdiff_t _stride_src, \
+                                             int16_t *sao_offset_val, int sao_left_class, int width, int height);
+
+SAO_BAND_FILTER_FUNCS(8,  sse2)
+SAO_BAND_FILTER_FUNCS(10, sse2)
+SAO_BAND_FILTER_FUNCS(12, sse2)
+SAO_BAND_FILTER_FUNCS(8,   avx)
+SAO_BAND_FILTER_FUNCS(10,  avx)
+SAO_BAND_FILTER_FUNCS(12,  avx)
+SAO_BAND_FILTER_FUNCS(8,  avx2)
+SAO_BAND_FILTER_FUNCS(10, avx2)
+SAO_BAND_FILTER_FUNCS(12, avx2)
+
+#define SAO_BAND_INIT(bitd, opt) do {                                       \
+    c->sao_band_filter[0]      = ff_hevc_sao_band_filter_8_##bitd##_##opt;  \
+    c->sao_band_filter[1]      = ff_hevc_sao_band_filter_16_##bitd##_##opt; \
+    c->sao_band_filter[2]      = ff_hevc_sao_band_filter_32_##bitd##_##opt; \
+    c->sao_band_filter[3]      = ff_hevc_sao_band_filter_48_##bitd##_##opt; \
+    c->sao_band_filter[4]      = ff_hevc_sao_band_filter_64_##bitd##_##opt; \
+} while (0)
+
+#define SAO_EDGE_FILTER_FUNCS(bitd, opt)                                                                                    \
+void ff_hevc_sao_edge_filter_8_##bitd##_##opt(uint8_t *_dst, uint8_t *_src, ptrdiff_t stride_dst, int16_t *sao_offset_val,  \
+                                              int eo, int width, int height);                                               \
+void ff_hevc_sao_edge_filter_16_##bitd##_##opt(uint8_t *_dst, uint8_t *_src, ptrdiff_t stride_dst, int16_t *sao_offset_val, \
+                                               int eo, int width, int height);                                              \
+void ff_hevc_sao_edge_filter_32_##bitd##_##opt(uint8_t *_dst, uint8_t *_src, ptrdiff_t stride_dst, int16_t *sao_offset_val, \
+                                               int eo, int width, int height);                                              \
+void ff_hevc_sao_edge_filter_48_##bitd##_##opt(uint8_t *_dst, uint8_t *_src, ptrdiff_t stride_dst, int16_t *sao_offset_val, \
+                                               int eo, int width, int height);                                              \
+void ff_hevc_sao_edge_filter_64_##bitd##_##opt(uint8_t *_dst, uint8_t *_src, ptrdiff_t stride_dst, int16_t *sao_offset_val, \
+                                               int eo, int width, int height);                                              \
+
+SAO_EDGE_FILTER_FUNCS(8, ssse3)
+SAO_EDGE_FILTER_FUNCS(8, avx2)
+SAO_EDGE_FILTER_FUNCS(10, sse2)
+SAO_EDGE_FILTER_FUNCS(10, avx2)
+SAO_EDGE_FILTER_FUNCS(12, sse2)
+SAO_EDGE_FILTER_FUNCS(12, avx2)
+
+#define SAO_EDGE_INIT(bitd, opt) do {                                       \
+    c->sao_edge_filter[0]      = ff_hevc_sao_edge_filter_8_##bitd##_##opt;  \
+    c->sao_edge_filter[1]      = ff_hevc_sao_edge_filter_16_##bitd##_##opt; \
+    c->sao_edge_filter[2]      = ff_hevc_sao_edge_filter_32_##bitd##_##opt; \
+    c->sao_edge_filter[3]      = ff_hevc_sao_edge_filter_48_##bitd##_##opt; \
+    c->sao_edge_filter[4]      = ff_hevc_sao_edge_filter_64_##bitd##_##opt; \
+} while (0)
+
+#define EPEL_LINKS(pointer, my, mx, fname, bitd, opt )           \
+        PEL_LINK(pointer, 1, my , mx , fname##4 ,  bitd, opt ); \
+        PEL_LINK(pointer, 2, my , mx , fname##6 ,  bitd, opt ); \
+        PEL_LINK(pointer, 3, my , mx , fname##8 ,  bitd, opt ); \
+        PEL_LINK(pointer, 4, my , mx , fname##12,  bitd, opt ); \
+        PEL_LINK(pointer, 5, my , mx , fname##16,  bitd, opt ); \
+        PEL_LINK(pointer, 6, my , mx , fname##24,  bitd, opt ); \
+        PEL_LINK(pointer, 7, my , mx , fname##32,  bitd, opt ); \
+        PEL_LINK(pointer, 8, my , mx , fname##48,  bitd, opt ); \
+        PEL_LINK(pointer, 9, my , mx , fname##64,  bitd, opt )
+#define QPEL_LINKS(pointer, my, mx, fname, bitd, opt)           \
+        PEL_LINK(pointer, 1, my , mx , fname##4 ,  bitd, opt ); \
+        PEL_LINK(pointer, 3, my , mx , fname##8 ,  bitd, opt ); \
+        PEL_LINK(pointer, 4, my , mx , fname##12,  bitd, opt ); \
+        PEL_LINK(pointer, 5, my , mx , fname##16,  bitd, opt ); \
+        PEL_LINK(pointer, 6, my , mx , fname##24,  bitd, opt ); \
+        PEL_LINK(pointer, 7, my , mx , fname##32,  bitd, opt ); \
+        PEL_LINK(pointer, 8, my , mx , fname##48,  bitd, opt ); \
+        PEL_LINK(pointer, 9, my , mx , fname##64,  bitd, opt )
+
+void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (bit_depth == 8) {
+        if (EXTERNAL_MMXEXT(cpu_flags)) {
+            c->idct_dc[0] = ff_hevc_idct_4x4_dc_8_mmxext;
+            c->idct_dc[1] = ff_hevc_idct_8x8_dc_8_mmxext;
+
+            c->add_residual[0] = ff_hevc_add_residual_4_8_mmxext;
+        }
+        if (EXTERNAL_SSE2(cpu_flags)) {
+            c->hevc_v_loop_filter_chroma = ff_hevc_v_loop_filter_chroma_8_sse2;
+            c->hevc_h_loop_filter_chroma = ff_hevc_h_loop_filter_chroma_8_sse2;
+            if (ARCH_X86_64) {
+                c->hevc_v_loop_filter_luma = ff_hevc_v_loop_filter_luma_8_sse2;
+                c->hevc_h_loop_filter_luma = ff_hevc_h_loop_filter_luma_8_sse2;
+
+                c->idct[2] = ff_hevc_idct_16x16_8_sse2;
+                c->idct[3] = ff_hevc_idct_32x32_8_sse2;
+            }
+            SAO_BAND_INIT(8, sse2);
+
+            c->idct_dc[1] = ff_hevc_idct_8x8_dc_8_sse2;
+            c->idct_dc[2] = ff_hevc_idct_16x16_dc_8_sse2;
+            c->idct_dc[3] = ff_hevc_idct_32x32_dc_8_sse2;
+
+            c->idct[0]    = ff_hevc_idct_4x4_8_sse2;
+            c->idct[1]    = ff_hevc_idct_8x8_8_sse2;
+
+            c->add_residual[1] = ff_hevc_add_residual_8_8_sse2;
+            c->add_residual[2] = ff_hevc_add_residual_16_8_sse2;
+            c->add_residual[3] = ff_hevc_add_residual_32_8_sse2;
+        }
+        if (EXTERNAL_SSSE3(cpu_flags)) {
+            if(ARCH_X86_64) {
+                c->hevc_v_loop_filter_luma = ff_hevc_v_loop_filter_luma_8_ssse3;
+                c->hevc_h_loop_filter_luma = ff_hevc_h_loop_filter_luma_8_ssse3;
+            }
+            SAO_EDGE_INIT(8, ssse3);
+        }
+        if (EXTERNAL_SSE4(cpu_flags) && ARCH_X86_64) {
+
+            EPEL_LINKS(c->put_hevc_epel, 0, 0, pel_pixels,  8, sse4);
+            EPEL_LINKS(c->put_hevc_epel, 0, 1, epel_h,      8, sse4);
+            EPEL_LINKS(c->put_hevc_epel, 1, 0, epel_v,      8, sse4);
+            EPEL_LINKS(c->put_hevc_epel, 1, 1, epel_hv,     8, sse4);
+
+            QPEL_LINKS(c->put_hevc_qpel, 0, 0, pel_pixels, 8, sse4);
+            QPEL_LINKS(c->put_hevc_qpel, 0, 1, qpel_h,     8, sse4);
+            QPEL_LINKS(c->put_hevc_qpel, 1, 0, qpel_v,     8, sse4);
+            QPEL_LINKS(c->put_hevc_qpel, 1, 1, qpel_hv,    8, sse4);
+        }
+        if (EXTERNAL_AVX(cpu_flags)) {
+            c->hevc_v_loop_filter_chroma = ff_hevc_v_loop_filter_chroma_8_avx;
+            c->hevc_h_loop_filter_chroma = ff_hevc_h_loop_filter_chroma_8_avx;
+            if (ARCH_X86_64) {
+                c->hevc_v_loop_filter_luma = ff_hevc_v_loop_filter_luma_8_avx;
+                c->hevc_h_loop_filter_luma = ff_hevc_h_loop_filter_luma_8_avx;
+
+                c->idct[2] = ff_hevc_idct_16x16_8_avx;
+                c->idct[3] = ff_hevc_idct_32x32_8_avx;
+            }
+            SAO_BAND_INIT(8, avx);
+
+            c->idct[0] = ff_hevc_idct_4x4_8_avx;
+            c->idct[1] = ff_hevc_idct_8x8_8_avx;
+
+            c->add_residual[1] = ff_hevc_add_residual_8_8_avx;
+            c->add_residual[2] = ff_hevc_add_residual_16_8_avx;
+            c->add_residual[3] = ff_hevc_add_residual_32_8_avx;
+        }
+        if (EXTERNAL_AVX2(cpu_flags)) {
+            c->sao_band_filter[0] = ff_hevc_sao_band_filter_8_8_avx2;
+            c->sao_band_filter[1] = ff_hevc_sao_band_filter_16_8_avx2;
+        }
+        if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+            c->idct_dc[2] = ff_hevc_idct_16x16_dc_8_avx2;
+            c->idct_dc[3] = ff_hevc_idct_32x32_dc_8_avx2;
+            if (ARCH_X86_64) {
+                c->put_hevc_epel[7][0][0] = ff_hevc_put_hevc_pel_pixels32_8_avx2;
+                c->put_hevc_epel[8][0][0] = ff_hevc_put_hevc_pel_pixels48_8_avx2;
+                c->put_hevc_epel[9][0][0] = ff_hevc_put_hevc_pel_pixels64_8_avx2;
+
+                c->put_hevc_qpel[7][0][0] = ff_hevc_put_hevc_pel_pixels32_8_avx2;
+                c->put_hevc_qpel[8][0][0] = ff_hevc_put_hevc_pel_pixels48_8_avx2;
+                c->put_hevc_qpel[9][0][0] = ff_hevc_put_hevc_pel_pixels64_8_avx2;
+
+                c->put_hevc_epel_uni[7][0][0] = ff_hevc_put_hevc_uni_pel_pixels32_8_avx2;
+                c->put_hevc_epel_uni[8][0][0] = ff_hevc_put_hevc_uni_pel_pixels48_8_avx2;
+                c->put_hevc_epel_uni[9][0][0] = ff_hevc_put_hevc_uni_pel_pixels64_8_avx2;
+
+                c->put_hevc_qpel_uni[7][0][0] = ff_hevc_put_hevc_uni_pel_pixels32_8_avx2;
+                c->put_hevc_qpel_uni[8][0][0] = ff_hevc_put_hevc_uni_pel_pixels48_8_avx2;
+                c->put_hevc_qpel_uni[9][0][0] = ff_hevc_put_hevc_uni_pel_pixels64_8_avx2;
+
+                c->put_hevc_qpel_bi[7][0][0] = ff_hevc_put_hevc_bi_pel_pixels32_8_avx2;
+                c->put_hevc_qpel_bi[8][0][0] = ff_hevc_put_hevc_bi_pel_pixels48_8_avx2;
+                c->put_hevc_qpel_bi[9][0][0] = ff_hevc_put_hevc_bi_pel_pixels64_8_avx2;
+
+                c->put_hevc_epel_bi[7][0][0] = ff_hevc_put_hevc_bi_pel_pixels32_8_avx2;
+                c->put_hevc_epel_bi[8][0][0] = ff_hevc_put_hevc_bi_pel_pixels48_8_avx2;
+                c->put_hevc_epel_bi[9][0][0] = ff_hevc_put_hevc_bi_pel_pixels64_8_avx2;
+
+                c->put_hevc_epel[7][0][1] = ff_hevc_put_hevc_epel_h32_8_avx2;
+                c->put_hevc_epel[8][0][1] = ff_hevc_put_hevc_epel_h48_8_avx2;
+                c->put_hevc_epel[9][0][1] = ff_hevc_put_hevc_epel_h64_8_avx2;
+
+                c->put_hevc_epel_uni[7][0][1] = ff_hevc_put_hevc_uni_epel_h32_8_avx2;
+                c->put_hevc_epel_uni[8][0][1] = ff_hevc_put_hevc_uni_epel_h48_8_avx2;
+                c->put_hevc_epel_uni[9][0][1] = ff_hevc_put_hevc_uni_epel_h64_8_avx2;
+
+                c->put_hevc_epel_bi[7][0][1] = ff_hevc_put_hevc_bi_epel_h32_8_avx2;
+                c->put_hevc_epel_bi[8][0][1] = ff_hevc_put_hevc_bi_epel_h48_8_avx2;
+                c->put_hevc_epel_bi[9][0][1] = ff_hevc_put_hevc_bi_epel_h64_8_avx2;
+
+                c->put_hevc_epel[7][1][0] = ff_hevc_put_hevc_epel_v32_8_avx2;
+                c->put_hevc_epel[8][1][0] = ff_hevc_put_hevc_epel_v48_8_avx2;
+                c->put_hevc_epel[9][1][0] = ff_hevc_put_hevc_epel_v64_8_avx2;
+
+                c->put_hevc_epel_uni[7][1][0] = ff_hevc_put_hevc_uni_epel_v32_8_avx2;
+                c->put_hevc_epel_uni[8][1][0] = ff_hevc_put_hevc_uni_epel_v48_8_avx2;
+                c->put_hevc_epel_uni[9][1][0] = ff_hevc_put_hevc_uni_epel_v64_8_avx2;
+
+                c->put_hevc_epel_bi[7][1][0] = ff_hevc_put_hevc_bi_epel_v32_8_avx2;
+                c->put_hevc_epel_bi[8][1][0] = ff_hevc_put_hevc_bi_epel_v48_8_avx2;
+                c->put_hevc_epel_bi[9][1][0] = ff_hevc_put_hevc_bi_epel_v64_8_avx2;
+
+                c->put_hevc_epel[7][1][1] = ff_hevc_put_hevc_epel_hv32_8_avx2;
+                c->put_hevc_epel[8][1][1] = ff_hevc_put_hevc_epel_hv48_8_avx2;
+                c->put_hevc_epel[9][1][1] = ff_hevc_put_hevc_epel_hv64_8_avx2;
+
+                c->put_hevc_epel_uni[7][1][1] = ff_hevc_put_hevc_uni_epel_hv32_8_avx2;
+                c->put_hevc_epel_uni[8][1][1] = ff_hevc_put_hevc_uni_epel_hv48_8_avx2;
+                c->put_hevc_epel_uni[9][1][1] = ff_hevc_put_hevc_uni_epel_hv64_8_avx2;
+
+                c->put_hevc_epel_bi[7][1][1] = ff_hevc_put_hevc_bi_epel_hv32_8_avx2;
+                c->put_hevc_epel_bi[8][1][1] = ff_hevc_put_hevc_bi_epel_hv48_8_avx2;
+                c->put_hevc_epel_bi[9][1][1] = ff_hevc_put_hevc_bi_epel_hv64_8_avx2;
+
+                c->put_hevc_qpel[7][0][1] = ff_hevc_put_hevc_qpel_h32_8_avx2;
+                c->put_hevc_qpel[8][0][1] = ff_hevc_put_hevc_qpel_h48_8_avx2;
+                c->put_hevc_qpel[9][0][1] = ff_hevc_put_hevc_qpel_h64_8_avx2;
+
+                c->put_hevc_qpel[7][1][0] = ff_hevc_put_hevc_qpel_v32_8_avx2;
+                c->put_hevc_qpel[8][1][0] = ff_hevc_put_hevc_qpel_v48_8_avx2;
+                c->put_hevc_qpel[9][1][0] = ff_hevc_put_hevc_qpel_v64_8_avx2;
+
+                c->put_hevc_qpel_uni[7][0][1] = ff_hevc_put_hevc_uni_qpel_h32_8_avx2;
+                c->put_hevc_qpel_uni[8][0][1] = ff_hevc_put_hevc_uni_qpel_h48_8_avx2;
+                c->put_hevc_qpel_uni[9][0][1] = ff_hevc_put_hevc_uni_qpel_h64_8_avx2;
+
+                c->put_hevc_qpel_uni[7][1][0] = ff_hevc_put_hevc_uni_qpel_v32_8_avx2;
+                c->put_hevc_qpel_uni[8][1][0] = ff_hevc_put_hevc_uni_qpel_v48_8_avx2;
+                c->put_hevc_qpel_uni[9][1][0] = ff_hevc_put_hevc_uni_qpel_v64_8_avx2;
+
+                c->put_hevc_qpel_bi[7][0][1] = ff_hevc_put_hevc_bi_qpel_h32_8_avx2;
+                c->put_hevc_qpel_bi[8][0][1] = ff_hevc_put_hevc_bi_qpel_h48_8_avx2;
+                c->put_hevc_qpel_bi[9][0][1] = ff_hevc_put_hevc_bi_qpel_h64_8_avx2;
+
+                c->put_hevc_qpel_bi[7][1][0] = ff_hevc_put_hevc_bi_qpel_v32_8_avx2;
+                c->put_hevc_qpel_bi[8][1][0] = ff_hevc_put_hevc_bi_qpel_v48_8_avx2;
+                c->put_hevc_qpel_bi[9][1][0] = ff_hevc_put_hevc_bi_qpel_v64_8_avx2;
+            }
+            SAO_BAND_INIT(8, avx2);
+
+            c->sao_edge_filter[2] = ff_hevc_sao_edge_filter_32_8_avx2;
+            c->sao_edge_filter[3] = ff_hevc_sao_edge_filter_48_8_avx2;
+            c->sao_edge_filter[4] = ff_hevc_sao_edge_filter_64_8_avx2;
+
+            c->add_residual[3] = ff_hevc_add_residual_32_8_avx2;
+        }
+    } else if (bit_depth == 10) {
+        if (EXTERNAL_MMXEXT(cpu_flags)) {
+            c->add_residual[0] = ff_hevc_add_residual_4_10_mmxext;
+            c->idct_dc[0] = ff_hevc_idct_4x4_dc_10_mmxext;
+            c->idct_dc[1] = ff_hevc_idct_8x8_dc_10_mmxext;
+        }
+        if (EXTERNAL_SSE2(cpu_flags)) {
+            c->hevc_v_loop_filter_chroma = ff_hevc_v_loop_filter_chroma_10_sse2;
+            c->hevc_h_loop_filter_chroma = ff_hevc_h_loop_filter_chroma_10_sse2;
+            if (ARCH_X86_64) {
+                c->hevc_v_loop_filter_luma = ff_hevc_v_loop_filter_luma_10_sse2;
+                c->hevc_h_loop_filter_luma = ff_hevc_h_loop_filter_luma_10_sse2;
+
+                c->idct[2] = ff_hevc_idct_16x16_10_sse2;
+                c->idct[3] = ff_hevc_idct_32x32_10_sse2;
+            }
+            SAO_BAND_INIT(10, sse2);
+            SAO_EDGE_INIT(10, sse2);
+
+            c->idct_dc[1] = ff_hevc_idct_8x8_dc_10_sse2;
+            c->idct_dc[2] = ff_hevc_idct_16x16_dc_10_sse2;
+            c->idct_dc[3] = ff_hevc_idct_32x32_dc_10_sse2;
+
+            c->idct[0]    = ff_hevc_idct_4x4_10_sse2;
+            c->idct[1]    = ff_hevc_idct_8x8_10_sse2;
+
+            c->add_residual[1] = ff_hevc_add_residual_8_10_sse2;
+            c->add_residual[2] = ff_hevc_add_residual_16_10_sse2;
+            c->add_residual[3] = ff_hevc_add_residual_32_10_sse2;
+        }
+        if (EXTERNAL_SSSE3(cpu_flags) && ARCH_X86_64) {
+            c->hevc_v_loop_filter_luma = ff_hevc_v_loop_filter_luma_10_ssse3;
+            c->hevc_h_loop_filter_luma = ff_hevc_h_loop_filter_luma_10_ssse3;
+        }
+        if (EXTERNAL_SSE4(cpu_flags) && ARCH_X86_64) {
+            EPEL_LINKS(c->put_hevc_epel, 0, 0, pel_pixels, 10, sse4);
+            EPEL_LINKS(c->put_hevc_epel, 0, 1, epel_h,     10, sse4);
+            EPEL_LINKS(c->put_hevc_epel, 1, 0, epel_v,     10, sse4);
+            EPEL_LINKS(c->put_hevc_epel, 1, 1, epel_hv,    10, sse4);
+
+            QPEL_LINKS(c->put_hevc_qpel, 0, 0, pel_pixels, 10, sse4);
+            QPEL_LINKS(c->put_hevc_qpel, 0, 1, qpel_h,     10, sse4);
+            QPEL_LINKS(c->put_hevc_qpel, 1, 0, qpel_v,     10, sse4);
+            QPEL_LINKS(c->put_hevc_qpel, 1, 1, qpel_hv,    10, sse4);
+        }
+        if (EXTERNAL_AVX(cpu_flags)) {
+            c->hevc_v_loop_filter_chroma = ff_hevc_v_loop_filter_chroma_10_avx;
+            c->hevc_h_loop_filter_chroma = ff_hevc_h_loop_filter_chroma_10_avx;
+            if (ARCH_X86_64) {
+                c->hevc_v_loop_filter_luma = ff_hevc_v_loop_filter_luma_10_avx;
+                c->hevc_h_loop_filter_luma = ff_hevc_h_loop_filter_luma_10_avx;
+
+                c->idct[2] = ff_hevc_idct_16x16_10_avx;
+                c->idct[3] = ff_hevc_idct_32x32_10_avx;
+            }
+
+            c->idct[0] = ff_hevc_idct_4x4_10_avx;
+            c->idct[1] = ff_hevc_idct_8x8_10_avx;
+
+            SAO_BAND_INIT(10, avx);
+        }
+        if (EXTERNAL_AVX2(cpu_flags)) {
+            c->sao_band_filter[0] = ff_hevc_sao_band_filter_8_10_avx2;
+        }
+        if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+            c->idct_dc[2] = ff_hevc_idct_16x16_dc_10_avx2;
+            c->idct_dc[3] = ff_hevc_idct_32x32_dc_10_avx2;
+            if (ARCH_X86_64) {
+                c->put_hevc_epel[5][0][0] = ff_hevc_put_hevc_pel_pixels16_10_avx2;
+                c->put_hevc_epel[6][0][0] = ff_hevc_put_hevc_pel_pixels24_10_avx2;
+                c->put_hevc_epel[7][0][0] = ff_hevc_put_hevc_pel_pixels32_10_avx2;
+                c->put_hevc_epel[8][0][0] = ff_hevc_put_hevc_pel_pixels48_10_avx2;
+                c->put_hevc_epel[9][0][0] = ff_hevc_put_hevc_pel_pixels64_10_avx2;
+
+                c->put_hevc_qpel[5][0][0] = ff_hevc_put_hevc_pel_pixels16_10_avx2;
+                c->put_hevc_qpel[6][0][0] = ff_hevc_put_hevc_pel_pixels24_10_avx2;
+                c->put_hevc_qpel[7][0][0] = ff_hevc_put_hevc_pel_pixels32_10_avx2;
+                c->put_hevc_qpel[8][0][0] = ff_hevc_put_hevc_pel_pixels48_10_avx2;
+                c->put_hevc_qpel[9][0][0] = ff_hevc_put_hevc_pel_pixels64_10_avx2;
+
+                c->put_hevc_epel_uni[5][0][0] = ff_hevc_put_hevc_uni_pel_pixels32_8_avx2;
+                c->put_hevc_epel_uni[6][0][0] = ff_hevc_put_hevc_uni_pel_pixels48_8_avx2;
+                c->put_hevc_epel_uni[7][0][0] = ff_hevc_put_hevc_uni_pel_pixels64_8_avx2;
+                c->put_hevc_epel_uni[8][0][0] = ff_hevc_put_hevc_uni_pel_pixels96_8_avx2;
+                c->put_hevc_epel_uni[9][0][0] = ff_hevc_put_hevc_uni_pel_pixels128_8_avx2;
+
+                c->put_hevc_qpel_uni[5][0][0] = ff_hevc_put_hevc_uni_pel_pixels32_8_avx2;
+                c->put_hevc_qpel_uni[6][0][0] = ff_hevc_put_hevc_uni_pel_pixels48_8_avx2;
+                c->put_hevc_qpel_uni[7][0][0] = ff_hevc_put_hevc_uni_pel_pixels64_8_avx2;
+                c->put_hevc_qpel_uni[8][0][0] = ff_hevc_put_hevc_uni_pel_pixels96_8_avx2;
+                c->put_hevc_qpel_uni[9][0][0] = ff_hevc_put_hevc_uni_pel_pixels128_8_avx2;
+
+                c->put_hevc_epel_bi[5][0][0] = ff_hevc_put_hevc_bi_pel_pixels16_10_avx2;
+                c->put_hevc_epel_bi[6][0][0] = ff_hevc_put_hevc_bi_pel_pixels24_10_avx2;
+                c->put_hevc_epel_bi[7][0][0] = ff_hevc_put_hevc_bi_pel_pixels32_10_avx2;
+                c->put_hevc_epel_bi[8][0][0] = ff_hevc_put_hevc_bi_pel_pixels48_10_avx2;
+                c->put_hevc_epel_bi[9][0][0] = ff_hevc_put_hevc_bi_pel_pixels64_10_avx2;
+                c->put_hevc_qpel_bi[5][0][0] = ff_hevc_put_hevc_bi_pel_pixels16_10_avx2;
+                c->put_hevc_qpel_bi[6][0][0] = ff_hevc_put_hevc_bi_pel_pixels24_10_avx2;
+                c->put_hevc_qpel_bi[7][0][0] = ff_hevc_put_hevc_bi_pel_pixels32_10_avx2;
+                c->put_hevc_qpel_bi[8][0][0] = ff_hevc_put_hevc_bi_pel_pixels48_10_avx2;
+                c->put_hevc_qpel_bi[9][0][0] = ff_hevc_put_hevc_bi_pel_pixels64_10_avx2;
+
+                c->put_hevc_epel[5][0][1] = ff_hevc_put_hevc_epel_h16_10_avx2;
+                c->put_hevc_epel[6][0][1] = ff_hevc_put_hevc_epel_h24_10_avx2;
+                c->put_hevc_epel[7][0][1] = ff_hevc_put_hevc_epel_h32_10_avx2;
+                c->put_hevc_epel[8][0][1] = ff_hevc_put_hevc_epel_h48_10_avx2;
+                c->put_hevc_epel[9][0][1] = ff_hevc_put_hevc_epel_h64_10_avx2;
+
+                c->put_hevc_epel_uni[5][0][1] = ff_hevc_put_hevc_uni_epel_h16_10_avx2;
+                c->put_hevc_epel_uni[6][0][1] = ff_hevc_put_hevc_uni_epel_h24_10_avx2;
+                c->put_hevc_epel_uni[7][0][1] = ff_hevc_put_hevc_uni_epel_h32_10_avx2;
+                c->put_hevc_epel_uni[8][0][1] = ff_hevc_put_hevc_uni_epel_h48_10_avx2;
+                c->put_hevc_epel_uni[9][0][1] = ff_hevc_put_hevc_uni_epel_h64_10_avx2;
+
+                c->put_hevc_epel_bi[5][0][1] = ff_hevc_put_hevc_bi_epel_h16_10_avx2;
+                c->put_hevc_epel_bi[6][0][1] = ff_hevc_put_hevc_bi_epel_h24_10_avx2;
+                c->put_hevc_epel_bi[7][0][1] = ff_hevc_put_hevc_bi_epel_h32_10_avx2;
+                c->put_hevc_epel_bi[8][0][1] = ff_hevc_put_hevc_bi_epel_h48_10_avx2;
+                c->put_hevc_epel_bi[9][0][1] = ff_hevc_put_hevc_bi_epel_h64_10_avx2;
+
+                c->put_hevc_epel[5][1][0] = ff_hevc_put_hevc_epel_v16_10_avx2;
+                c->put_hevc_epel[6][1][0] = ff_hevc_put_hevc_epel_v24_10_avx2;
+                c->put_hevc_epel[7][1][0] = ff_hevc_put_hevc_epel_v32_10_avx2;
+                c->put_hevc_epel[8][1][0] = ff_hevc_put_hevc_epel_v48_10_avx2;
+                c->put_hevc_epel[9][1][0] = ff_hevc_put_hevc_epel_v64_10_avx2;
+
+                c->put_hevc_epel_uni[5][1][0] = ff_hevc_put_hevc_uni_epel_v16_10_avx2;
+                c->put_hevc_epel_uni[6][1][0] = ff_hevc_put_hevc_uni_epel_v24_10_avx2;
+                c->put_hevc_epel_uni[7][1][0] = ff_hevc_put_hevc_uni_epel_v32_10_avx2;
+                c->put_hevc_epel_uni[8][1][0] = ff_hevc_put_hevc_uni_epel_v48_10_avx2;
+                c->put_hevc_epel_uni[9][1][0] = ff_hevc_put_hevc_uni_epel_v64_10_avx2;
+
+                c->put_hevc_epel_bi[5][1][0] = ff_hevc_put_hevc_bi_epel_v16_10_avx2;
+                c->put_hevc_epel_bi[6][1][0] = ff_hevc_put_hevc_bi_epel_v24_10_avx2;
+                c->put_hevc_epel_bi[7][1][0] = ff_hevc_put_hevc_bi_epel_v32_10_avx2;
+                c->put_hevc_epel_bi[8][1][0] = ff_hevc_put_hevc_bi_epel_v48_10_avx2;
+                c->put_hevc_epel_bi[9][1][0] = ff_hevc_put_hevc_bi_epel_v64_10_avx2;
+
+                c->put_hevc_epel[5][1][1] = ff_hevc_put_hevc_epel_hv16_10_avx2;
+                c->put_hevc_epel[6][1][1] = ff_hevc_put_hevc_epel_hv24_10_avx2;
+                c->put_hevc_epel[7][1][1] = ff_hevc_put_hevc_epel_hv32_10_avx2;
+                c->put_hevc_epel[8][1][1] = ff_hevc_put_hevc_epel_hv48_10_avx2;
+                c->put_hevc_epel[9][1][1] = ff_hevc_put_hevc_epel_hv64_10_avx2;
+
+                c->put_hevc_epel_uni[5][1][1] = ff_hevc_put_hevc_uni_epel_hv16_10_avx2;
+                c->put_hevc_epel_uni[6][1][1] = ff_hevc_put_hevc_uni_epel_hv24_10_avx2;
+                c->put_hevc_epel_uni[7][1][1] = ff_hevc_put_hevc_uni_epel_hv32_10_avx2;
+                c->put_hevc_epel_uni[8][1][1] = ff_hevc_put_hevc_uni_epel_hv48_10_avx2;
+                c->put_hevc_epel_uni[9][1][1] = ff_hevc_put_hevc_uni_epel_hv64_10_avx2;
+
+                c->put_hevc_epel_bi[5][1][1] = ff_hevc_put_hevc_bi_epel_hv16_10_avx2;
+                c->put_hevc_epel_bi[6][1][1] = ff_hevc_put_hevc_bi_epel_hv24_10_avx2;
+                c->put_hevc_epel_bi[7][1][1] = ff_hevc_put_hevc_bi_epel_hv32_10_avx2;
+                c->put_hevc_epel_bi[8][1][1] = ff_hevc_put_hevc_bi_epel_hv48_10_avx2;
+                c->put_hevc_epel_bi[9][1][1] = ff_hevc_put_hevc_bi_epel_hv64_10_avx2;
+
+                c->put_hevc_qpel[5][0][1] = ff_hevc_put_hevc_qpel_h16_10_avx2;
+                c->put_hevc_qpel[6][0][1] = ff_hevc_put_hevc_qpel_h24_10_avx2;
+                c->put_hevc_qpel[7][0][1] = ff_hevc_put_hevc_qpel_h32_10_avx2;
+                c->put_hevc_qpel[8][0][1] = ff_hevc_put_hevc_qpel_h48_10_avx2;
+                c->put_hevc_qpel[9][0][1] = ff_hevc_put_hevc_qpel_h64_10_avx2;
+
+                c->put_hevc_qpel_uni[5][0][1] = ff_hevc_put_hevc_uni_qpel_h16_10_avx2;
+                c->put_hevc_qpel_uni[6][0][1] = ff_hevc_put_hevc_uni_qpel_h24_10_avx2;
+                c->put_hevc_qpel_uni[7][0][1] = ff_hevc_put_hevc_uni_qpel_h32_10_avx2;
+                c->put_hevc_qpel_uni[8][0][1] = ff_hevc_put_hevc_uni_qpel_h48_10_avx2;
+                c->put_hevc_qpel_uni[9][0][1] = ff_hevc_put_hevc_uni_qpel_h64_10_avx2;
+
+                c->put_hevc_qpel_bi[5][0][1] = ff_hevc_put_hevc_bi_qpel_h16_10_avx2;
+                c->put_hevc_qpel_bi[6][0][1] = ff_hevc_put_hevc_bi_qpel_h24_10_avx2;
+                c->put_hevc_qpel_bi[7][0][1] = ff_hevc_put_hevc_bi_qpel_h32_10_avx2;
+                c->put_hevc_qpel_bi[8][0][1] = ff_hevc_put_hevc_bi_qpel_h48_10_avx2;
+                c->put_hevc_qpel_bi[9][0][1] = ff_hevc_put_hevc_bi_qpel_h64_10_avx2;
+
+                c->put_hevc_qpel[5][1][0] = ff_hevc_put_hevc_qpel_v16_10_avx2;
+                c->put_hevc_qpel[6][1][0] = ff_hevc_put_hevc_qpel_v24_10_avx2;
+                c->put_hevc_qpel[7][1][0] = ff_hevc_put_hevc_qpel_v32_10_avx2;
+                c->put_hevc_qpel[8][1][0] = ff_hevc_put_hevc_qpel_v48_10_avx2;
+                c->put_hevc_qpel[9][1][0] = ff_hevc_put_hevc_qpel_v64_10_avx2;
+
+                c->put_hevc_qpel_uni[5][1][0] = ff_hevc_put_hevc_uni_qpel_v16_10_avx2;
+                c->put_hevc_qpel_uni[6][1][0] = ff_hevc_put_hevc_uni_qpel_v24_10_avx2;
+                c->put_hevc_qpel_uni[7][1][0] = ff_hevc_put_hevc_uni_qpel_v32_10_avx2;
+                c->put_hevc_qpel_uni[8][1][0] = ff_hevc_put_hevc_uni_qpel_v48_10_avx2;
+                c->put_hevc_qpel_uni[9][1][0] = ff_hevc_put_hevc_uni_qpel_v64_10_avx2;
+
+                c->put_hevc_qpel_bi[5][1][0] = ff_hevc_put_hevc_bi_qpel_v16_10_avx2;
+                c->put_hevc_qpel_bi[6][1][0] = ff_hevc_put_hevc_bi_qpel_v24_10_avx2;
+                c->put_hevc_qpel_bi[7][1][0] = ff_hevc_put_hevc_bi_qpel_v32_10_avx2;
+                c->put_hevc_qpel_bi[8][1][0] = ff_hevc_put_hevc_bi_qpel_v48_10_avx2;
+                c->put_hevc_qpel_bi[9][1][0] = ff_hevc_put_hevc_bi_qpel_v64_10_avx2;
+
+                c->put_hevc_qpel[5][1][1] = ff_hevc_put_hevc_qpel_hv16_10_avx2;
+                c->put_hevc_qpel[6][1][1] = ff_hevc_put_hevc_qpel_hv24_10_avx2;
+                c->put_hevc_qpel[7][1][1] = ff_hevc_put_hevc_qpel_hv32_10_avx2;
+                c->put_hevc_qpel[8][1][1] = ff_hevc_put_hevc_qpel_hv48_10_avx2;
+                c->put_hevc_qpel[9][1][1] = ff_hevc_put_hevc_qpel_hv64_10_avx2;
+
+                c->put_hevc_qpel_uni[5][1][1] = ff_hevc_put_hevc_uni_qpel_hv16_10_avx2;
+                c->put_hevc_qpel_uni[6][1][1] = ff_hevc_put_hevc_uni_qpel_hv24_10_avx2;
+                c->put_hevc_qpel_uni[7][1][1] = ff_hevc_put_hevc_uni_qpel_hv32_10_avx2;
+                c->put_hevc_qpel_uni[8][1][1] = ff_hevc_put_hevc_uni_qpel_hv48_10_avx2;
+                c->put_hevc_qpel_uni[9][1][1] = ff_hevc_put_hevc_uni_qpel_hv64_10_avx2;
+
+                c->put_hevc_qpel_bi[5][1][1] = ff_hevc_put_hevc_bi_qpel_hv16_10_avx2;
+                c->put_hevc_qpel_bi[6][1][1] = ff_hevc_put_hevc_bi_qpel_hv24_10_avx2;
+                c->put_hevc_qpel_bi[7][1][1] = ff_hevc_put_hevc_bi_qpel_hv32_10_avx2;
+                c->put_hevc_qpel_bi[8][1][1] = ff_hevc_put_hevc_bi_qpel_hv48_10_avx2;
+                c->put_hevc_qpel_bi[9][1][1] = ff_hevc_put_hevc_bi_qpel_hv64_10_avx2;
+            }
+            SAO_BAND_INIT(10, avx2);
+            SAO_EDGE_INIT(10, avx2);
+
+            c->add_residual[2] = ff_hevc_add_residual_16_10_avx2;
+            c->add_residual[3] = ff_hevc_add_residual_32_10_avx2;
+        }
+    } else if (bit_depth == 12) {
+        if (EXTERNAL_MMXEXT(cpu_flags)) {
+            c->idct_dc[0] = ff_hevc_idct_4x4_dc_12_mmxext;
+            c->idct_dc[1] = ff_hevc_idct_8x8_dc_12_mmxext;
+        }
+        if (EXTERNAL_SSE2(cpu_flags)) {
+            c->hevc_v_loop_filter_chroma = ff_hevc_v_loop_filter_chroma_12_sse2;
+            c->hevc_h_loop_filter_chroma = ff_hevc_h_loop_filter_chroma_12_sse2;
+            if (ARCH_X86_64) {
+                c->hevc_v_loop_filter_luma = ff_hevc_v_loop_filter_luma_12_sse2;
+                c->hevc_h_loop_filter_luma = ff_hevc_h_loop_filter_luma_12_sse2;
+            }
+            SAO_BAND_INIT(12, sse2);
+            SAO_EDGE_INIT(12, sse2);
+
+            c->idct_dc[1] = ff_hevc_idct_8x8_dc_12_sse2;
+            c->idct_dc[2] = ff_hevc_idct_16x16_dc_12_sse2;
+            c->idct_dc[3] = ff_hevc_idct_32x32_dc_12_sse2;
+        }
+        if (EXTERNAL_SSSE3(cpu_flags) && ARCH_X86_64) {
+            c->hevc_v_loop_filter_luma = ff_hevc_v_loop_filter_luma_12_ssse3;
+            c->hevc_h_loop_filter_luma = ff_hevc_h_loop_filter_luma_12_ssse3;
+        }
+        if (EXTERNAL_SSE4(cpu_flags) && ARCH_X86_64) {
+            EPEL_LINKS(c->put_hevc_epel, 0, 0, pel_pixels, 12, sse4);
+            EPEL_LINKS(c->put_hevc_epel, 0, 1, epel_h,     12, sse4);
+            EPEL_LINKS(c->put_hevc_epel, 1, 0, epel_v,     12, sse4);
+            EPEL_LINKS(c->put_hevc_epel, 1, 1, epel_hv,    12, sse4);
+
+            QPEL_LINKS(c->put_hevc_qpel, 0, 0, pel_pixels, 12, sse4);
+            QPEL_LINKS(c->put_hevc_qpel, 0, 1, qpel_h,     12, sse4);
+            QPEL_LINKS(c->put_hevc_qpel, 1, 0, qpel_v,     12, sse4);
+            QPEL_LINKS(c->put_hevc_qpel, 1, 1, qpel_hv,    12, sse4);
+        }
+        if (EXTERNAL_AVX(cpu_flags)) {
+            c->hevc_v_loop_filter_chroma = ff_hevc_v_loop_filter_chroma_12_avx;
+            c->hevc_h_loop_filter_chroma = ff_hevc_h_loop_filter_chroma_12_avx;
+            if (ARCH_X86_64) {
+                c->hevc_v_loop_filter_luma = ff_hevc_v_loop_filter_luma_12_avx;
+                c->hevc_h_loop_filter_luma = ff_hevc_h_loop_filter_luma_12_avx;
+            }
+            SAO_BAND_INIT(12, avx);
+        }
+        if (EXTERNAL_AVX2(cpu_flags)) {
+            c->sao_band_filter[0] = ff_hevc_sao_band_filter_8_12_avx2;
+        }
+        if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+            c->idct_dc[2] = ff_hevc_idct_16x16_dc_12_avx2;
+            c->idct_dc[3] = ff_hevc_idct_32x32_dc_12_avx2;
+
+            SAO_BAND_INIT(12, avx2);
+            SAO_EDGE_INIT(12, avx2);
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hpeldsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hpeldsp.h
new file mode 100644
index 000000000..bf97029b5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hpeldsp.h
@@ -0,0 +1,57 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_HPELDSP_H
+#define AVCODEC_X86_HPELDSP_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "libavcodec/hpeldsp.h"
+
+void ff_avg_pixels8_x2_mmx(uint8_t *block, const uint8_t *pixels,
+                           ptrdiff_t line_size, int h);
+
+void ff_avg_pixels8_xy2_mmx(uint8_t *block, const uint8_t *pixels,
+                            ptrdiff_t line_size, int h);
+void ff_avg_pixels8_xy2_mmxext(uint8_t *block, const uint8_t *pixels,
+                               ptrdiff_t line_size, int h);
+void ff_avg_pixels8_xy2_ssse3(uint8_t *block, const uint8_t *pixels,
+                               ptrdiff_t line_size, int h);
+
+void ff_avg_pixels16_xy2_mmx(uint8_t *block, const uint8_t *pixels,
+                             ptrdiff_t line_size, int h);
+void ff_avg_pixels16_xy2_sse2(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_avg_pixels16_xy2_ssse3(uint8_t *block, const uint8_t *pixels,
+                               ptrdiff_t line_size, int h);
+
+void ff_put_pixels8_xy2_mmx(uint8_t *block, const uint8_t *pixels,
+                            ptrdiff_t line_size, int h);
+void ff_put_pixels8_xy2_ssse3(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_put_pixels16_xy2_mmx(uint8_t *block, const uint8_t *pixels,
+                             ptrdiff_t line_size, int h);
+void ff_put_pixels16_xy2_sse2(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_put_pixels16_xy2_ssse3(uint8_t *block, const uint8_t *pixels,
+                               ptrdiff_t line_size, int h);
+
+void ff_hpeldsp_vp3_init_x86(HpelDSPContext *c, int cpu_flags, int flags);
+
+#endif /* AVCODEC_X86_HPELDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hpeldsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hpeldsp_init.c
new file mode 100644
index 000000000..d89928cec
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hpeldsp_init.c
@@ -0,0 +1,313 @@
+/*
+ * SIMD-optimized halfpel functions
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/hpeldsp.h"
+#include "libavcodec/pixels.h"
+#include "fpel.h"
+#include "hpeldsp.h"
+
+void ff_put_pixels8_x2_mmxext(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_put_pixels8_x2_3dnow(uint8_t *block, const uint8_t *pixels,
+                             ptrdiff_t line_size, int h);
+void ff_put_pixels16_x2_mmxext(uint8_t *block, const uint8_t *pixels,
+                               ptrdiff_t line_size, int h);
+void ff_put_pixels16_x2_3dnow(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_put_pixels16_x2_sse2(uint8_t *block, const uint8_t *pixels,
+                             ptrdiff_t line_size, int h);
+void ff_avg_pixels16_x2_sse2(uint8_t *block, const uint8_t *pixels,
+                             ptrdiff_t line_size, int h);
+void ff_put_pixels16_y2_sse2(uint8_t *block, const uint8_t *pixels,
+                             ptrdiff_t line_size, int h);
+void ff_avg_pixels16_y2_sse2(uint8_t *block, const uint8_t *pixels,
+                             ptrdiff_t line_size, int h);
+void ff_put_no_rnd_pixels8_x2_mmxext(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void ff_put_no_rnd_pixels8_x2_3dnow(uint8_t *block, const uint8_t *pixels,
+                                    ptrdiff_t line_size, int h);
+void ff_put_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_put_pixels8_y2_3dnow(uint8_t *block, const uint8_t *pixels,
+                             ptrdiff_t line_size, int h);
+void ff_put_no_rnd_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void ff_put_no_rnd_pixels8_y2_3dnow(uint8_t *block, const uint8_t *pixels,
+                                    ptrdiff_t line_size, int h);
+void ff_avg_pixels8_3dnow(uint8_t *block, const uint8_t *pixels,
+                          ptrdiff_t line_size, int h);
+void ff_avg_pixels8_x2_mmxext(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_avg_pixels8_x2_3dnow(uint8_t *block, const uint8_t *pixels,
+                             ptrdiff_t line_size, int h);
+void ff_avg_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_avg_pixels8_y2_3dnow(uint8_t *block, const uint8_t *pixels,
+                             ptrdiff_t line_size, int h);
+void ff_avg_pixels8_xy2_3dnow(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_avg_approx_pixels8_xy2_mmxext(uint8_t *block, const uint8_t *pixels,
+                                      ptrdiff_t line_size, int h);
+void ff_avg_approx_pixels8_xy2_3dnow(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+
+#define avg_pixels8_mmx         ff_avg_pixels8_mmx
+#define avg_pixels8_x2_mmx      ff_avg_pixels8_x2_mmx
+#define avg_pixels16_mmx        ff_avg_pixels16_mmx
+#define avg_pixels8_xy2_mmx     ff_avg_pixels8_xy2_mmx
+#define avg_pixels16_xy2_mmx    ff_avg_pixels16_xy2_mmx
+#define put_pixels8_mmx         ff_put_pixels8_mmx
+#define put_pixels16_mmx        ff_put_pixels16_mmx
+#define put_pixels8_xy2_mmx     ff_put_pixels8_xy2_mmx
+#define put_pixels16_xy2_mmx    ff_put_pixels16_xy2_mmx
+#define avg_no_rnd_pixels16_mmx ff_avg_pixels16_mmx
+#define put_no_rnd_pixels8_mmx  ff_put_pixels8_mmx
+#define put_no_rnd_pixels16_mmx ff_put_pixels16_mmx
+
+#if HAVE_INLINE_ASM
+
+/***********************************/
+/* MMX no rounding */
+#define DEF(x, y) x ## _no_rnd_ ## y ## _mmx
+#define SET_RND  MOVQ_WONE
+#define PAVGBP(a, b, c, d, e, f)        PAVGBP_MMX_NO_RND(a, b, c, d, e, f)
+#define PAVGB(a, b, c, e)               PAVGB_MMX_NO_RND(a, b, c, e)
+#define STATIC static
+
+#include "rnd_template.c"
+#include "hpeldsp_rnd_template.c"
+
+#undef DEF
+#undef SET_RND
+#undef PAVGBP
+#undef PAVGB
+#undef STATIC
+
+#if HAVE_MMX
+CALL_2X_PIXELS(avg_no_rnd_pixels16_y2_mmx, avg_no_rnd_pixels8_y2_mmx, 8)
+CALL_2X_PIXELS(put_no_rnd_pixels16_y2_mmx, put_no_rnd_pixels8_y2_mmx, 8)
+
+CALL_2X_PIXELS(avg_no_rnd_pixels16_xy2_mmx, avg_no_rnd_pixels8_xy2_mmx, 8)
+CALL_2X_PIXELS(put_no_rnd_pixels16_xy2_mmx, put_no_rnd_pixels8_xy2_mmx, 8)
+#endif
+
+/***********************************/
+/* MMX rounding */
+
+#define DEF(x, y) x ## _ ## y ## _mmx
+#define SET_RND  MOVQ_WTWO
+#define PAVGBP(a, b, c, d, e, f)        PAVGBP_MMX(a, b, c, d, e, f)
+#define PAVGB(a, b, c, e)               PAVGB_MMX(a, b, c, e)
+
+#include "hpeldsp_rnd_template.c"
+
+#undef DEF
+#define DEF(x, y) ff_ ## x ## _ ## y ## _mmx
+#define STATIC
+
+#include "rnd_template.c"
+
+#undef DEF
+#undef SET_RND
+#undef PAVGBP
+#undef PAVGB
+
+#if HAVE_MMX
+CALL_2X_PIXELS(avg_pixels16_y2_mmx, avg_pixels8_y2_mmx, 8)
+CALL_2X_PIXELS(put_pixels16_y2_mmx, put_pixels8_y2_mmx, 8)
+
+CALL_2X_PIXELS_EXPORT(ff_avg_pixels16_xy2_mmx, ff_avg_pixels8_xy2_mmx, 8)
+CALL_2X_PIXELS_EXPORT(ff_put_pixels16_xy2_mmx, ff_put_pixels8_xy2_mmx, 8)
+#endif
+
+#endif /* HAVE_INLINE_ASM */
+
+
+#if HAVE_X86ASM
+
+#define HPELDSP_AVG_PIXELS16(CPUEXT)                      \
+    CALL_2X_PIXELS(put_no_rnd_pixels16_x2 ## CPUEXT, ff_put_no_rnd_pixels8_x2 ## CPUEXT, 8) \
+    CALL_2X_PIXELS(put_pixels16_y2        ## CPUEXT, ff_put_pixels8_y2        ## CPUEXT, 8) \
+    CALL_2X_PIXELS(put_no_rnd_pixels16_y2 ## CPUEXT, ff_put_no_rnd_pixels8_y2 ## CPUEXT, 8) \
+    CALL_2X_PIXELS(avg_pixels16           ## CPUEXT, ff_avg_pixels8           ## CPUEXT, 8) \
+    CALL_2X_PIXELS(avg_pixels16_x2        ## CPUEXT, ff_avg_pixels8_x2        ## CPUEXT, 8) \
+    CALL_2X_PIXELS(avg_pixels16_y2        ## CPUEXT, ff_avg_pixels8_y2        ## CPUEXT, 8) \
+    CALL_2X_PIXELS(avg_pixels16_xy2       ## CPUEXT, ff_avg_pixels8_xy2       ## CPUEXT, 8) \
+    CALL_2X_PIXELS(avg_approx_pixels16_xy2## CPUEXT, ff_avg_approx_pixels8_xy2## CPUEXT, 8)
+
+HPELDSP_AVG_PIXELS16(_3dnow)
+HPELDSP_AVG_PIXELS16(_mmxext)
+
+#endif /* HAVE_X86ASM */
+
+#define SET_HPEL_FUNCS_EXT(PFX, IDX, SIZE, CPU)                             \
+    if (HAVE_MMX_EXTERNAL)                                                  \
+    c->PFX ## _pixels_tab IDX [0] = PFX ## _pixels ## SIZE ## _     ## CPU;
+
+#if HAVE_MMX_INLINE
+#define SET_HPEL_FUNCS(PFX, IDX, SIZE, CPU)                                     \
+    do {                                                                        \
+        SET_HPEL_FUNCS_EXT(PFX, IDX, SIZE, CPU)                                 \
+        c->PFX ## _pixels_tab IDX [1] = PFX ## _pixels ## SIZE ## _x2_  ## CPU; \
+        c->PFX ## _pixels_tab IDX [2] = PFX ## _pixels ## SIZE ## _y2_  ## CPU; \
+        c->PFX ## _pixels_tab IDX [3] = PFX ## _pixels ## SIZE ## _xy2_ ## CPU; \
+    } while (0)
+#else
+#define SET_HPEL_FUNCS(PFX, IDX, SIZE, CPU)                                     \
+    do {                                                                        \
+        SET_HPEL_FUNCS_EXT(PFX, IDX, SIZE, CPU)                                 \
+    } while (0)
+#endif
+
+static void hpeldsp_init_mmx(HpelDSPContext *c, int flags)
+{
+    SET_HPEL_FUNCS(put,        [0], 16, mmx);
+    SET_HPEL_FUNCS(put_no_rnd, [0], 16, mmx);
+    SET_HPEL_FUNCS(avg,        [0], 16, mmx);
+    SET_HPEL_FUNCS(avg_no_rnd,    , 16, mmx);
+    SET_HPEL_FUNCS(put,        [1],  8, mmx);
+    SET_HPEL_FUNCS(put_no_rnd, [1],  8, mmx);
+    if (HAVE_MMX_EXTERNAL) {
+        c->avg_pixels_tab[1][0] = ff_avg_pixels8_mmx;
+        c->avg_pixels_tab[1][1] = ff_avg_pixels8_x2_mmx;
+    }
+#if HAVE_MMX_INLINE
+    c->avg_pixels_tab[1][2] = avg_pixels8_y2_mmx;
+    c->avg_pixels_tab[1][3] = ff_avg_pixels8_xy2_mmx;
+#endif
+}
+
+static void hpeldsp_init_mmxext(HpelDSPContext *c, int flags)
+{
+#if HAVE_MMXEXT_EXTERNAL
+    c->put_pixels_tab[0][1] = ff_put_pixels16_x2_mmxext;
+    c->put_pixels_tab[0][2] = put_pixels16_y2_mmxext;
+
+    c->avg_pixels_tab[0][0] = avg_pixels16_mmxext;
+    c->avg_pixels_tab[0][1] = avg_pixels16_x2_mmxext;
+    c->avg_pixels_tab[0][2] = avg_pixels16_y2_mmxext;
+    c->avg_pixels_tab[0][3] = avg_pixels16_xy2_mmxext;
+
+    c->put_pixels_tab[1][1] = ff_put_pixels8_x2_mmxext;
+    c->put_pixels_tab[1][2] = ff_put_pixels8_y2_mmxext;
+
+    c->avg_pixels_tab[1][0] = ff_avg_pixels8_mmxext;
+    c->avg_pixels_tab[1][1] = ff_avg_pixels8_x2_mmxext;
+    c->avg_pixels_tab[1][2] = ff_avg_pixels8_y2_mmxext;
+    c->avg_pixels_tab[1][3] = ff_avg_pixels8_xy2_mmxext;
+
+    if (!(flags & AV_CODEC_FLAG_BITEXACT)) {
+        c->put_no_rnd_pixels_tab[0][1] = put_no_rnd_pixels16_x2_mmxext;
+        c->put_no_rnd_pixels_tab[0][2] = put_no_rnd_pixels16_y2_mmxext;
+        c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_mmxext;
+        c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_mmxext;
+
+        c->avg_pixels_tab[0][3] = avg_approx_pixels16_xy2_mmxext;
+        c->avg_pixels_tab[1][3] = ff_avg_approx_pixels8_xy2_mmxext;
+    }
+#endif /* HAVE_MMXEXT_EXTERNAL */
+}
+
+static void hpeldsp_init_3dnow(HpelDSPContext *c, int flags)
+{
+#if HAVE_AMD3DNOW_EXTERNAL
+    c->put_pixels_tab[0][1] = ff_put_pixels16_x2_3dnow;
+    c->put_pixels_tab[0][2] = put_pixels16_y2_3dnow;
+
+    c->avg_pixels_tab[0][0] = avg_pixels16_3dnow;
+    c->avg_pixels_tab[0][1] = avg_pixels16_x2_3dnow;
+    c->avg_pixels_tab[0][2] = avg_pixels16_y2_3dnow;
+    c->avg_pixels_tab[0][3] = avg_pixels16_xy2_3dnow;
+
+    c->put_pixels_tab[1][1] = ff_put_pixels8_x2_3dnow;
+    c->put_pixels_tab[1][2] = ff_put_pixels8_y2_3dnow;
+
+    c->avg_pixels_tab[1][0] = ff_avg_pixels8_3dnow;
+    c->avg_pixels_tab[1][1] = ff_avg_pixels8_x2_3dnow;
+    c->avg_pixels_tab[1][2] = ff_avg_pixels8_y2_3dnow;
+    c->avg_pixels_tab[1][3] = ff_avg_pixels8_xy2_3dnow;
+
+    if (!(flags & AV_CODEC_FLAG_BITEXACT)){
+        c->put_no_rnd_pixels_tab[0][1] = put_no_rnd_pixels16_x2_3dnow;
+        c->put_no_rnd_pixels_tab[0][2] = put_no_rnd_pixels16_y2_3dnow;
+        c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_3dnow;
+        c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_3dnow;
+
+        c->avg_pixels_tab[0][3] = avg_approx_pixels16_xy2_3dnow;
+        c->avg_pixels_tab[1][3] = ff_avg_approx_pixels8_xy2_3dnow;
+    }
+#endif /* HAVE_AMD3DNOW_EXTERNAL */
+}
+
+static void hpeldsp_init_sse2_fast(HpelDSPContext *c, int flags)
+{
+#if HAVE_SSE2_EXTERNAL
+    c->put_pixels_tab[0][0]        = ff_put_pixels16_sse2;
+    c->put_no_rnd_pixels_tab[0][0] = ff_put_pixels16_sse2;
+    c->put_pixels_tab[0][1]        = ff_put_pixels16_x2_sse2;
+    c->put_pixels_tab[0][2]        = ff_put_pixels16_y2_sse2;
+    c->put_pixels_tab[0][3]        = ff_put_pixels16_xy2_sse2;
+    c->avg_pixels_tab[0][0]        = ff_avg_pixels16_sse2;
+    c->avg_pixels_tab[0][1]        = ff_avg_pixels16_x2_sse2;
+    c->avg_pixels_tab[0][2]        = ff_avg_pixels16_y2_sse2;
+    c->avg_pixels_tab[0][3]        = ff_avg_pixels16_xy2_sse2;
+#endif /* HAVE_SSE2_EXTERNAL */
+}
+
+static void hpeldsp_init_ssse3(HpelDSPContext *c, int flags)
+{
+#if HAVE_SSSE3_EXTERNAL
+    c->put_pixels_tab[0][3]            = ff_put_pixels16_xy2_ssse3;
+    c->avg_pixels_tab[0][3]            = ff_avg_pixels16_xy2_ssse3;
+    c->put_pixels_tab[1][3]            = ff_put_pixels8_xy2_ssse3;
+    c->avg_pixels_tab[1][3]            = ff_avg_pixels8_xy2_ssse3;
+#endif
+}
+
+av_cold void ff_hpeldsp_init_x86(HpelDSPContext *c, int flags)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (INLINE_MMX(cpu_flags))
+        hpeldsp_init_mmx(c, flags);
+
+    if (EXTERNAL_AMD3DNOW(cpu_flags))
+        hpeldsp_init_3dnow(c, flags);
+
+    if (EXTERNAL_MMXEXT(cpu_flags))
+        hpeldsp_init_mmxext(c, flags);
+
+    if (EXTERNAL_SSE2_FAST(cpu_flags))
+        hpeldsp_init_sse2_fast(c, flags);
+
+    if (EXTERNAL_SSSE3(cpu_flags))
+        hpeldsp_init_ssse3(c, flags);
+
+    if (CONFIG_VP3_DECODER)
+        ff_hpeldsp_vp3_init_x86(c, cpu_flags, flags);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hpeldsp_rnd_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hpeldsp_rnd_template.c
new file mode 100644
index 000000000..2bff2d276
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hpeldsp_rnd_template.c
@@ -0,0 +1,202 @@
+/*
+ * SIMD-optimized halfpel functions are compiled twice for rnd/no_rnd
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2003-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
+ * mostly rewritten by Michael Niedermayer <michaelni@gmx.at>
+ * and improved by Zdenek Kabelac <kabi@users.sf.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+
+// put_pixels
+av_unused static void DEF(put, pixels8_x2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
+{
+    MOVQ_BFE(mm6);
+    __asm__ volatile(
+        "lea    (%3, %3), %%"FF_REG_a"  \n\t"
+        ".p2align 3                     \n\t"
+        "1:                             \n\t"
+        "movq   (%1), %%mm0             \n\t"
+        "movq   1(%1), %%mm1            \n\t"
+        "movq   (%1, %3), %%mm2         \n\t"
+        "movq   1(%1, %3), %%mm3        \n\t"
+        PAVGBP(%%mm0, %%mm1, %%mm4,   %%mm2, %%mm3, %%mm5)
+        "movq   %%mm4, (%2)             \n\t"
+        "movq   %%mm5, (%2, %3)         \n\t"
+        "add    %%"FF_REG_a", %1        \n\t"
+        "add    %%"FF_REG_a", %2        \n\t"
+        "movq   (%1), %%mm0             \n\t"
+        "movq   1(%1), %%mm1            \n\t"
+        "movq   (%1, %3), %%mm2         \n\t"
+        "movq   1(%1, %3), %%mm3        \n\t"
+        PAVGBP(%%mm0, %%mm1, %%mm4,   %%mm2, %%mm3, %%mm5)
+        "movq   %%mm4, (%2)             \n\t"
+        "movq   %%mm5, (%2, %3)         \n\t"
+        "add    %%"FF_REG_a", %1        \n\t"
+        "add    %%"FF_REG_a", %2        \n\t"
+        "subl   $4, %0                  \n\t"
+        "jnz    1b                      \n\t"
+        :"+g"(h), "+S"(pixels), "+D"(block)
+        :"r"((x86_reg)line_size)
+        :FF_REG_a, "memory");
+}
+
+av_unused static void DEF(put, pixels16_x2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
+{
+    MOVQ_BFE(mm6);
+    __asm__ volatile(
+        "lea    (%3, %3), %%"FF_REG_a"  \n\t"
+        ".p2align 3                     \n\t"
+        "1:                             \n\t"
+        "movq   (%1), %%mm0             \n\t"
+        "movq   1(%1), %%mm1            \n\t"
+        "movq   (%1, %3), %%mm2         \n\t"
+        "movq   1(%1, %3), %%mm3        \n\t"
+        PAVGBP(%%mm0, %%mm1, %%mm4,   %%mm2, %%mm3, %%mm5)
+        "movq   %%mm4, (%2)             \n\t"
+        "movq   %%mm5, (%2, %3)         \n\t"
+        "movq   8(%1), %%mm0            \n\t"
+        "movq   9(%1), %%mm1            \n\t"
+        "movq   8(%1, %3), %%mm2        \n\t"
+        "movq   9(%1, %3), %%mm3        \n\t"
+        PAVGBP(%%mm0, %%mm1, %%mm4,   %%mm2, %%mm3, %%mm5)
+        "movq   %%mm4, 8(%2)            \n\t"
+        "movq   %%mm5, 8(%2, %3)        \n\t"
+        "add    %%"FF_REG_a", %1        \n\t"
+        "add    %%"FF_REG_a", %2        \n\t"
+        "movq   (%1), %%mm0             \n\t"
+        "movq   1(%1), %%mm1            \n\t"
+        "movq   (%1, %3), %%mm2         \n\t"
+        "movq   1(%1, %3), %%mm3        \n\t"
+        PAVGBP(%%mm0, %%mm1, %%mm4,   %%mm2, %%mm3, %%mm5)
+        "movq   %%mm4, (%2)             \n\t"
+        "movq   %%mm5, (%2, %3)         \n\t"
+        "movq   8(%1), %%mm0            \n\t"
+        "movq   9(%1), %%mm1            \n\t"
+        "movq   8(%1, %3), %%mm2        \n\t"
+        "movq   9(%1, %3), %%mm3        \n\t"
+        PAVGBP(%%mm0, %%mm1, %%mm4,   %%mm2, %%mm3, %%mm5)
+        "movq   %%mm4, 8(%2)            \n\t"
+        "movq   %%mm5, 8(%2, %3)        \n\t"
+        "add    %%"FF_REG_a", %1        \n\t"
+        "add    %%"FF_REG_a", %2        \n\t"
+        "subl   $4, %0                  \n\t"
+        "jnz    1b                      \n\t"
+        :"+g"(h), "+S"(pixels), "+D"(block)
+        :"r"((x86_reg)line_size)
+        :FF_REG_a, "memory");
+}
+
+av_unused static void DEF(put, pixels8_y2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
+{
+    MOVQ_BFE(mm6);
+    __asm__ volatile(
+        "lea (%3, %3), %%"FF_REG_a"     \n\t"
+        "movq (%1), %%mm0               \n\t"
+        ".p2align 3                     \n\t"
+        "1:                             \n\t"
+        "movq   (%1, %3), %%mm1         \n\t"
+        "movq   (%1, %%"FF_REG_a"),%%mm2\n\t"
+        PAVGBP(%%mm1, %%mm0, %%mm4,   %%mm2, %%mm1, %%mm5)
+        "movq   %%mm4, (%2)             \n\t"
+        "movq   %%mm5, (%2, %3)         \n\t"
+        "add    %%"FF_REG_a", %1        \n\t"
+        "add    %%"FF_REG_a", %2        \n\t"
+        "movq   (%1, %3), %%mm1         \n\t"
+        "movq   (%1, %%"FF_REG_a"),%%mm0\n\t"
+        PAVGBP(%%mm1, %%mm2, %%mm4,   %%mm0, %%mm1, %%mm5)
+        "movq   %%mm4, (%2)             \n\t"
+        "movq   %%mm5, (%2, %3)         \n\t"
+        "add    %%"FF_REG_a", %1        \n\t"
+        "add    %%"FF_REG_a", %2        \n\t"
+        "subl   $4, %0                  \n\t"
+        "jnz    1b                      \n\t"
+        :"+g"(h), "+S"(pixels), "+D"(block)
+        :"r"((x86_reg)line_size)
+        :FF_REG_a, "memory");
+}
+
+av_unused static void DEF(avg, pixels16_x2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
+{
+    MOVQ_BFE(mm6);
+        __asm__ volatile(
+            ".p2align 3                 \n\t"
+            "1:                         \n\t"
+            "movq  (%1), %%mm0          \n\t"
+            "movq  1(%1), %%mm1         \n\t"
+            "movq  (%2), %%mm3          \n\t"
+            PAVGB(%%mm0, %%mm1, %%mm2, %%mm6)
+            PAVGB_MMX(%%mm3, %%mm2, %%mm0, %%mm6)
+            "movq  %%mm0, (%2)          \n\t"
+            "movq  8(%1), %%mm0         \n\t"
+            "movq  9(%1), %%mm1         \n\t"
+            "movq  8(%2), %%mm3         \n\t"
+            PAVGB(%%mm0, %%mm1, %%mm2, %%mm6)
+            PAVGB_MMX(%%mm3, %%mm2, %%mm0, %%mm6)
+            "movq  %%mm0, 8(%2)         \n\t"
+            "add    %3, %1              \n\t"
+            "add    %3, %2              \n\t"
+            "subl   $1, %0              \n\t"
+            "jnz    1b                  \n\t"
+            :"+g"(h), "+S"(pixels), "+D"(block)
+            :"r"((x86_reg)line_size)
+            :"memory");
+}
+
+av_unused static void DEF(avg, pixels8_y2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
+{
+    MOVQ_BFE(mm6);
+    __asm__ volatile(
+        "lea    (%3, %3), %%"FF_REG_a"  \n\t"
+        "movq   (%1), %%mm0             \n\t"
+        ".p2align 3                     \n\t"
+        "1:                             \n\t"
+        "movq   (%1, %3), %%mm1         \n\t"
+        "movq   (%1, %%"FF_REG_a"), %%mm2 \n\t"
+        PAVGBP(%%mm1, %%mm0, %%mm4,   %%mm2, %%mm1, %%mm5)
+        "movq   (%2), %%mm3             \n\t"
+        PAVGB_MMX(%%mm3, %%mm4, %%mm0, %%mm6)
+        "movq   (%2, %3), %%mm3         \n\t"
+        PAVGB_MMX(%%mm3, %%mm5, %%mm1, %%mm6)
+        "movq   %%mm0, (%2)             \n\t"
+        "movq   %%mm1, (%2, %3)         \n\t"
+        "add    %%"FF_REG_a", %1        \n\t"
+        "add    %%"FF_REG_a", %2        \n\t"
+
+        "movq   (%1, %3), %%mm1         \n\t"
+        "movq   (%1, %%"FF_REG_a"), %%mm0 \n\t"
+        PAVGBP(%%mm1, %%mm2, %%mm4,   %%mm0, %%mm1, %%mm5)
+        "movq   (%2), %%mm3             \n\t"
+        PAVGB_MMX(%%mm3, %%mm4, %%mm2, %%mm6)
+        "movq   (%2, %3), %%mm3         \n\t"
+        PAVGB_MMX(%%mm3, %%mm5, %%mm1, %%mm6)
+        "movq   %%mm2, (%2)             \n\t"
+        "movq   %%mm1, (%2, %3)         \n\t"
+        "add    %%"FF_REG_a", %1        \n\t"
+        "add    %%"FF_REG_a", %2        \n\t"
+
+        "subl   $4, %0                  \n\t"
+        "jnz    1b                      \n\t"
+        :"+g"(h), "+S"(pixels), "+D"(block)
+        :"r"((x86_reg)line_size)
+        :FF_REG_a, "memory");
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hpeldsp_vp3_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hpeldsp_vp3_init.c
new file mode 100644
index 000000000..5979f4123
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/hpeldsp_vp3_init.c
@@ -0,0 +1,56 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+
+#include "libavcodec/avcodec.h"
+#include "libavcodec/hpeldsp.h"
+
+#include "hpeldsp.h"
+
+void ff_put_no_rnd_pixels8_x2_exact_mmxext(uint8_t *block,
+                                           const uint8_t *pixels,
+                                           ptrdiff_t line_size, int h);
+void ff_put_no_rnd_pixels8_x2_exact_3dnow(uint8_t *block,
+                                          const uint8_t *pixels,
+                                          ptrdiff_t line_size, int h);
+void ff_put_no_rnd_pixels8_y2_exact_mmxext(uint8_t *block,
+                                           const uint8_t *pixels,
+                                           ptrdiff_t line_size, int h);
+void ff_put_no_rnd_pixels8_y2_exact_3dnow(uint8_t *block,
+                                          const uint8_t *pixels,
+                                          ptrdiff_t line_size, int h);
+
+av_cold void ff_hpeldsp_vp3_init_x86(HpelDSPContext *c, int cpu_flags, int flags)
+{
+    if (EXTERNAL_AMD3DNOW(cpu_flags)) {
+        if (flags & AV_CODEC_FLAG_BITEXACT) {
+            c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_exact_3dnow;
+            c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_exact_3dnow;
+        }
+    }
+
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        if (flags & AV_CODEC_FLAG_BITEXACT) {
+            c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_exact_mmxext;
+            c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_exact_mmxext;
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/huffyuvdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/huffyuvdsp_init.c
new file mode 100644
index 000000000..eb10de383
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/huffyuvdsp_init.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2009 Loren Merritt <lorenm@u.washington.edu>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/huffyuvdsp.h"
+
+void ff_add_int16_mmx(uint16_t *dst, const uint16_t *src, unsigned mask, int w);
+void ff_add_int16_sse2(uint16_t *dst, const uint16_t *src, unsigned mask, int w);
+void ff_add_int16_avx2(uint16_t *dst, const uint16_t *src, unsigned mask, int w);
+
+void ff_add_hfyu_left_pred_bgr32_mmx(uint8_t *dst, const uint8_t *src,
+                                     intptr_t w, uint8_t *left);
+void ff_add_hfyu_left_pred_bgr32_sse2(uint8_t *dst, const uint8_t *src,
+                                      intptr_t w, uint8_t *left);
+void ff_add_hfyu_median_pred_int16_mmxext(uint16_t *dst, const uint16_t *top, const uint16_t *diff, unsigned mask, int w, int *left, int *left_top);
+
+av_cold void ff_huffyuvdsp_init_x86(HuffYUVDSPContext *c, enum AVPixelFormat pix_fmt)
+{
+    int cpu_flags = av_get_cpu_flags();
+    const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(pix_fmt);
+
+    if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags)) {
+        c->add_hfyu_left_pred_bgr32 = ff_add_hfyu_left_pred_bgr32_mmx;
+        c->add_int16 = ff_add_int16_mmx;
+    }
+
+    if (EXTERNAL_MMXEXT(cpu_flags) && pix_desc && pix_desc->comp[0].depth<16) {
+        c->add_hfyu_median_pred_int16 = ff_add_hfyu_median_pred_int16_mmxext;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->add_int16 = ff_add_int16_sse2;
+        c->add_hfyu_left_pred_bgr32 = ff_add_hfyu_left_pred_bgr32_sse2;
+    }
+
+    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+        c->add_int16 = ff_add_int16_avx2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/huffyuvencdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/huffyuvencdsp_init.c
new file mode 100644
index 000000000..6c6e068cf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/huffyuvencdsp_init.c
@@ -0,0 +1,60 @@
+/*
+ * SIMD-optimized HuffYUV encoding functions
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/huffyuvencdsp.h"
+
+void ff_diff_int16_mmx (uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
+                        unsigned mask, int w);
+void ff_diff_int16_sse2(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
+                        unsigned mask, int w);
+void ff_diff_int16_avx2(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
+                        unsigned mask, int w);
+void ff_sub_hfyu_median_pred_int16_mmxext(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
+                                          unsigned mask, int w, int *left, int *left_top);
+
+av_cold void ff_huffyuvencdsp_init_x86(HuffYUVEncDSPContext *c, AVCodecContext *avctx)
+{
+    av_unused int cpu_flags = av_get_cpu_flags();
+    const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(avctx->pix_fmt);
+
+    if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags)) {
+        c->diff_int16 = ff_diff_int16_mmx;
+    }
+
+    if (EXTERNAL_MMXEXT(cpu_flags) && pix_desc && pix_desc->comp[0].depth<16) {
+        c->sub_hfyu_median_pred_int16 = ff_sub_hfyu_median_pred_int16_mmxext;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->diff_int16 = ff_diff_int16_sse2;
+    }
+
+    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+        c->diff_int16 = ff_diff_int16_avx2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/idctdsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/idctdsp.h
new file mode 100644
index 000000000..0d0bdb5f5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/idctdsp.h
@@ -0,0 +1,39 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_IDCTDSP_H
+#define AVCODEC_X86_IDCTDSP_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+void ff_add_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
+                               ptrdiff_t line_size);
+void ff_add_pixels_clamped_sse2(const int16_t *block, uint8_t *pixels,
+                                ptrdiff_t line_size);
+void ff_put_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
+                               ptrdiff_t line_size);
+void ff_put_pixels_clamped_sse2(const int16_t *block, uint8_t *pixels,
+                                ptrdiff_t line_size);
+void ff_put_signed_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
+                                      ptrdiff_t line_size);
+void ff_put_signed_pixels_clamped_sse2(const int16_t *block, uint8_t *pixels,
+                                       ptrdiff_t line_size);
+
+
+#endif /* AVCODEC_X86_IDCTDSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/idctdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/idctdsp_init.c
new file mode 100644
index 000000000..9103b92ce
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/idctdsp_init.c
@@ -0,0 +1,162 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/idctdsp.h"
+#include "idctdsp.h"
+#include "simple_idct.h"
+
+/* Input permutation for the simple_idct_mmx */
+static const uint8_t simple_mmx_permutation[64] = {
+    0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D,
+    0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D,
+    0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D,
+    0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F,
+    0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F,
+    0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D,
+    0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F,
+    0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,
+};
+
+static const uint8_t idct_sse2_row_perm[8] = { 0, 4, 1, 5, 2, 6, 3, 7 };
+
+av_cold int ff_init_scantable_permutation_x86(uint8_t *idct_permutation,
+                                              enum idct_permutation_type perm_type)
+{
+    int i;
+
+    switch (perm_type) {
+    case FF_IDCT_PERM_SIMPLE:
+        for (i = 0; i < 64; i++)
+            idct_permutation[i] = simple_mmx_permutation[i];
+        return 1;
+    case FF_IDCT_PERM_SSE2:
+        for (i = 0; i < 64; i++)
+            idct_permutation[i] = (i & 0x38) | idct_sse2_row_perm[i & 7];
+        return 1;
+    }
+
+    return 0;
+}
+
+av_cold void ff_idctdsp_init_x86(IDCTDSPContext *c, AVCodecContext *avctx,
+                                 unsigned high_bit_depth)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_mmx;
+        c->put_pixels_clamped        = ff_put_pixels_clamped_mmx;
+        c->add_pixels_clamped        = ff_add_pixels_clamped_mmx;
+
+        if (!high_bit_depth &&
+            avctx->lowres == 0 &&
+            (avctx->idct_algo == FF_IDCT_AUTO ||
+                avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
+                avctx->idct_algo == FF_IDCT_SIMPLEMMX)) {
+                c->idct_put  = ff_simple_idct_put_mmx;
+                c->idct_add  = ff_simple_idct_add_mmx;
+                c->idct      = ff_simple_idct_mmx;
+                c->perm_type = FF_IDCT_PERM_SIMPLE;
+        }
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_sse2;
+        c->put_pixels_clamped        = ff_put_pixels_clamped_sse2;
+        c->add_pixels_clamped        = ff_add_pixels_clamped_sse2;
+
+        if (!high_bit_depth &&
+            avctx->lowres == 0 &&
+            (avctx->idct_algo == FF_IDCT_AUTO ||
+                avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
+                avctx->idct_algo == FF_IDCT_SIMPLEMMX)) {
+                c->idct_put  = ff_simple_idct_put_sse2;
+                c->idct_add  = ff_simple_idct_add_sse2;
+                c->perm_type = FF_IDCT_PERM_SIMPLE;
+        }
+
+        if (ARCH_X86_64 &&
+            !high_bit_depth &&
+            avctx->lowres == 0 &&
+            (avctx->idct_algo == FF_IDCT_AUTO ||
+                avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
+                avctx->idct_algo == FF_IDCT_SIMPLEMMX ||
+                avctx->idct_algo == FF_IDCT_SIMPLE)) {
+                c->idct      = ff_simple_idct8_sse2;
+                c->idct_put  = ff_simple_idct8_put_sse2;
+                c->idct_add  = ff_simple_idct8_add_sse2;
+                c->perm_type = FF_IDCT_PERM_TRANSPOSE;
+        }
+    }
+
+    if (ARCH_X86_64 && avctx->lowres == 0) {
+        if (EXTERNAL_AVX(cpu_flags) &&
+            !high_bit_depth &&
+            (avctx->idct_algo == FF_IDCT_AUTO ||
+                avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
+                avctx->idct_algo == FF_IDCT_SIMPLEMMX ||
+                avctx->idct_algo == FF_IDCT_SIMPLE)) {
+                c->idct      = ff_simple_idct8_avx;
+                c->idct_put  = ff_simple_idct8_put_avx;
+                c->idct_add  = ff_simple_idct8_add_avx;
+                c->perm_type = FF_IDCT_PERM_TRANSPOSE;
+        }
+
+        if (avctx->bits_per_raw_sample == 10 &&
+            avctx->codec_id != AV_CODEC_ID_MPEG4 &&
+            (avctx->idct_algo == FF_IDCT_AUTO ||
+             avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
+             avctx->idct_algo == FF_IDCT_SIMPLE)) {
+            if (EXTERNAL_SSE2(cpu_flags)) {
+                c->idct_put  = ff_simple_idct10_put_sse2;
+                c->idct_add  = NULL;
+                c->idct      = ff_simple_idct10_sse2;
+                c->perm_type = FF_IDCT_PERM_TRANSPOSE;
+
+            }
+            if (EXTERNAL_AVX(cpu_flags)) {
+                c->idct_put  = ff_simple_idct10_put_avx;
+                c->idct_add  = NULL;
+                c->idct      = ff_simple_idct10_avx;
+                c->perm_type = FF_IDCT_PERM_TRANSPOSE;
+            }
+        }
+
+        if (avctx->bits_per_raw_sample == 12 &&
+            (avctx->idct_algo == FF_IDCT_AUTO ||
+             avctx->idct_algo == FF_IDCT_SIMPLEMMX)) {
+            if (EXTERNAL_SSE2(cpu_flags)) {
+                c->idct_put  = ff_simple_idct12_put_sse2;
+                c->idct_add  = NULL;
+                c->idct      = ff_simple_idct12_sse2;
+                c->perm_type = FF_IDCT_PERM_TRANSPOSE;
+            }
+            if (EXTERNAL_AVX(cpu_flags)) {
+                c->idct_put  = ff_simple_idct12_put_avx;
+                c->idct_add  = NULL;
+                c->idct      = ff_simple_idct12_avx;
+                c->perm_type = FF_IDCT_PERM_TRANSPOSE;
+            }
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/inline_asm.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/inline_asm.h
new file mode 100644
index 000000000..019874671
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/inline_asm.h
@@ -0,0 +1,100 @@
+/*
+ * inline assembly helper macros
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_INLINE_ASM_H
+#define AVCODEC_X86_INLINE_ASM_H
+
+#include "constants.h"
+
+#define MOVQ_WONE(regd) \
+    __asm__ volatile ( \
+    "pcmpeqd %%" #regd ", %%" #regd " \n\t" \
+    "psrlw $15, %%" #regd ::)
+
+#define JUMPALIGN()     __asm__ volatile (".p2align 3"::)
+#define MOVQ_ZERO(regd) __asm__ volatile ("pxor %%"#regd", %%"#regd ::)
+
+#define MOVQ_BFE(regd)                                  \
+    __asm__ volatile (                                  \
+        "pcmpeqd %%"#regd", %%"#regd"   \n\t"           \
+        "paddb   %%"#regd", %%"#regd"   \n\t" ::)
+
+#ifndef PIC
+#define MOVQ_WTWO(regd) __asm__ volatile ("movq %0, %%"#regd" \n\t" :: "m"(ff_pw_2))
+#else
+// for shared library it's better to use this way for accessing constants
+// pcmpeqd -> -1
+#define MOVQ_WTWO(regd)                                 \
+    __asm__ volatile (                                  \
+        "pcmpeqd %%"#regd", %%"#regd"   \n\t"           \
+        "psrlw         $15, %%"#regd"   \n\t"           \
+        "psllw          $1, %%"#regd"   \n\t"::)
+
+#endif
+
+// using regr as temporary and for the output result
+// first argument is unmodified and second is trashed
+// regfe is supposed to contain 0xfefefefefefefefe
+#define PAVGB_MMX_NO_RND(rega, regb, regr, regfe)                \
+    "movq   "#rega", "#regr"            \n\t"                    \
+    "pand   "#regb", "#regr"            \n\t"                    \
+    "pxor   "#rega", "#regb"            \n\t"                    \
+    "pand  "#regfe", "#regb"            \n\t"                    \
+    "psrlq       $1, "#regb"            \n\t"                    \
+    "paddb  "#regb", "#regr"            \n\t"
+
+#define PAVGB_MMX(rega, regb, regr, regfe)                       \
+    "movq   "#rega", "#regr"            \n\t"                    \
+    "por    "#regb", "#regr"            \n\t"                    \
+    "pxor   "#rega", "#regb"            \n\t"                    \
+    "pand  "#regfe", "#regb"            \n\t"                    \
+    "psrlq       $1, "#regb"            \n\t"                    \
+    "psubb  "#regb", "#regr"            \n\t"
+
+// mm6 is supposed to contain 0xfefefefefefefefe
+#define PAVGBP_MMX_NO_RND(rega, regb, regr,  regc, regd, regp)   \
+    "movq  "#rega", "#regr"             \n\t"                    \
+    "movq  "#regc", "#regp"             \n\t"                    \
+    "pand  "#regb", "#regr"             \n\t"                    \
+    "pand  "#regd", "#regp"             \n\t"                    \
+    "pxor  "#rega", "#regb"             \n\t"                    \
+    "pxor  "#regc", "#regd"             \n\t"                    \
+    "pand    %%mm6, "#regb"             \n\t"                    \
+    "pand    %%mm6, "#regd"             \n\t"                    \
+    "psrlq      $1, "#regb"             \n\t"                    \
+    "psrlq      $1, "#regd"             \n\t"                    \
+    "paddb "#regb", "#regr"             \n\t"                    \
+    "paddb "#regd", "#regp"             \n\t"
+
+#define PAVGBP_MMX(rega, regb, regr, regc, regd, regp)           \
+    "movq  "#rega", "#regr"             \n\t"                    \
+    "movq  "#regc", "#regp"             \n\t"                    \
+    "por   "#regb", "#regr"             \n\t"                    \
+    "por   "#regd", "#regp"             \n\t"                    \
+    "pxor  "#rega", "#regb"             \n\t"                    \
+    "pxor  "#regc", "#regd"             \n\t"                    \
+    "pand    %%mm6, "#regb"             \n\t"                    \
+    "pand    %%mm6, "#regd"             \n\t"                    \
+    "psrlq      $1, "#regd"             \n\t"                    \
+    "psrlq      $1, "#regb"             \n\t"                    \
+    "psubb "#regb", "#regr"             \n\t"                    \
+    "psubb "#regd", "#regp"             \n\t"
+
+#endif /* AVCODEC_X86_INLINE_ASM_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/jpeg2000dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/jpeg2000dsp_init.c
new file mode 100644
index 000000000..7310a1d0e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/jpeg2000dsp_init.c
@@ -0,0 +1,60 @@
+/*
+ * SIMD optimized JPEG 2000 DSP functions
+ * Copyright (c) 2015 James Almer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/jpeg2000dsp.h"
+
+void ff_ict_float_sse(void *src0, void *src1, void *src2, int csize);
+void ff_ict_float_avx(void *src0, void *src1, void *src2, int csize);
+void ff_ict_float_fma3(void *src0, void *src1, void *src2, int csize);
+void ff_ict_float_fma4(void *src0, void *src1, void *src2, int csize);
+void ff_rct_int_sse2 (void *src0, void *src1, void *src2, int csize);
+void ff_rct_int_avx2 (void *src0, void *src1, void *src2, int csize);
+
+av_cold void ff_jpeg2000dsp_init_x86(Jpeg2000DSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+    if (EXTERNAL_SSE(cpu_flags)) {
+        c->mct_decode[FF_DWT97] = ff_ict_float_sse;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->mct_decode[FF_DWT53] = ff_rct_int_sse2;
+    }
+
+    if (EXTERNAL_AVX_FAST(cpu_flags)) {
+        c->mct_decode[FF_DWT97] = ff_ict_float_avx;
+    }
+
+    if (EXTERNAL_FMA4(cpu_flags)) {
+        c->mct_decode[FF_DWT97] = ff_ict_float_fma4;
+    }
+
+    if (EXTERNAL_FMA3_FAST(cpu_flags)) {
+        c->mct_decode[FF_DWT97] = ff_ict_float_fma3;
+    }
+
+    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+        c->mct_decode[FF_DWT53] = ff_rct_int_avx2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/lossless_audiodsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/lossless_audiodsp_init.c
new file mode 100644
index 000000000..f74c7e436
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/lossless_audiodsp_init.c
@@ -0,0 +1,56 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/lossless_audiodsp.h"
+
+int32_t ff_scalarproduct_and_madd_int16_mmxext(int16_t *v1, const int16_t *v2,
+                                               const int16_t *v3,
+                                               int order, int mul);
+int32_t ff_scalarproduct_and_madd_int16_sse2(int16_t *v1, const int16_t *v2,
+                                             const int16_t *v3,
+                                             int order, int mul);
+int32_t ff_scalarproduct_and_madd_int16_ssse3(int16_t *v1, const int16_t *v2,
+                                              const int16_t *v3,
+                                              int order, int mul);
+
+int32_t ff_scalarproduct_and_madd_int32_sse4(int16_t *v1, const int32_t *v2,
+                                             const int16_t *v3,
+                                             int order, int mul);
+
+av_cold void ff_llauddsp_init_x86(LLAudDSPContext *c)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMXEXT(cpu_flags))
+        c->scalarproduct_and_madd_int16 = ff_scalarproduct_and_madd_int16_mmxext;
+
+    if (EXTERNAL_SSE2(cpu_flags))
+        c->scalarproduct_and_madd_int16 = ff_scalarproduct_and_madd_int16_sse2;
+
+    if (EXTERNAL_SSSE3(cpu_flags) &&
+        !(cpu_flags & (AV_CPU_FLAG_SSE42 | AV_CPU_FLAG_3DNOW))) // cachesplit
+        c->scalarproduct_and_madd_int16 = ff_scalarproduct_and_madd_int16_ssse3;
+
+    if (EXTERNAL_SSE4(cpu_flags))
+        c->scalarproduct_and_madd_int32 = ff_scalarproduct_and_madd_int32_sse4;
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/lossless_videodsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/lossless_videodsp_init.c
new file mode 100644
index 000000000..6d71f14e7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/lossless_videodsp_init.c
@@ -0,0 +1,128 @@
+/*
+ * Lossless video DSP utils
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/x86/asm.h"
+#include "../lossless_videodsp.h"
+#include "libavutil/x86/cpu.h"
+
+void ff_add_bytes_mmx(uint8_t *dst, uint8_t *src, ptrdiff_t w);
+void ff_add_bytes_sse2(uint8_t *dst, uint8_t *src, ptrdiff_t w);
+void ff_add_bytes_avx2(uint8_t *dst, uint8_t *src, ptrdiff_t w);
+
+void ff_add_median_pred_mmxext(uint8_t *dst, const uint8_t *top,
+                               const uint8_t *diff, ptrdiff_t w,
+                               int *left, int *left_top);
+void ff_add_median_pred_sse2(uint8_t *dst, const uint8_t *top,
+                             const uint8_t *diff, ptrdiff_t w,
+                             int *left, int *left_top);
+
+int  ff_add_left_pred_ssse3(uint8_t *dst, const uint8_t *src,
+                            ptrdiff_t w, int left);
+int  ff_add_left_pred_unaligned_ssse3(uint8_t *dst, const uint8_t *src,
+                                      ptrdiff_t w, int left);
+int  ff_add_left_pred_unaligned_avx2(uint8_t *dst, const uint8_t *src,
+                                     ptrdiff_t w, int left);
+
+int ff_add_left_pred_int16_ssse3(uint16_t *dst, const uint16_t *src, unsigned mask, ptrdiff_t w, unsigned acc);
+int ff_add_left_pred_int16_unaligned_ssse3(uint16_t *dst, const uint16_t *src, unsigned mask, ptrdiff_t w, unsigned acc);
+
+void ff_add_gradient_pred_ssse3(uint8_t *src, const ptrdiff_t stride, const ptrdiff_t width);
+void ff_add_gradient_pred_avx2(uint8_t *src, const ptrdiff_t stride, const ptrdiff_t width);
+
+#if HAVE_INLINE_ASM && HAVE_7REGS && ARCH_X86_32
+static void add_median_pred_cmov(uint8_t *dst, const uint8_t *top,
+                                 const uint8_t *diff, ptrdiff_t w,
+                                 int *left, int *left_top)
+{
+    x86_reg w2 = -w;
+    x86_reg x;
+    int l  = *left     & 0xff;
+    int tl = *left_top & 0xff;
+    int t;
+    __asm__ volatile (
+        "mov          %7, %3            \n"
+        "1:                             \n"
+        "movzbl (%3, %4), %2            \n"
+        "mov          %2, %k3           \n"
+        "sub         %b1, %b3           \n"
+        "add         %b0, %b3           \n"
+        "mov          %2, %1            \n"
+        "cmp          %0, %2            \n"
+        "cmovg        %0, %2            \n"
+        "cmovg        %1, %0            \n"
+        "cmp         %k3, %0            \n"
+        "cmovg       %k3, %0            \n"
+        "mov          %7, %3            \n"
+        "cmp          %2, %0            \n"
+        "cmovl        %2, %0            \n"
+        "add    (%6, %4), %b0           \n"
+        "mov         %b0, (%5, %4)      \n"
+        "inc          %4                \n"
+        "jl           1b                \n"
+        : "+&q"(l), "+&q"(tl), "=&r"(t), "=&q"(x), "+&r"(w2)
+        : "r"(dst + w), "r"(diff + w), "rm"(top + w)
+    );
+    *left     = l;
+    *left_top = tl;
+}
+#endif
+
+void ff_llviddsp_init_x86(LLVidDSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+#if HAVE_INLINE_ASM && HAVE_7REGS && ARCH_X86_32
+    if (cpu_flags & AV_CPU_FLAG_CMOV)
+        c->add_median_pred = add_median_pred_cmov;
+#endif
+
+    if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags)) {
+        c->add_bytes = ff_add_bytes_mmx;
+    }
+
+    if (ARCH_X86_32 && EXTERNAL_MMXEXT(cpu_flags)) {
+        /* slower than cmov version on AMD */
+        if (!(cpu_flags & AV_CPU_FLAG_3DNOW))
+            c->add_median_pred = ff_add_median_pred_mmxext;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->add_bytes       = ff_add_bytes_sse2;
+        c->add_median_pred = ff_add_median_pred_sse2;
+    }
+
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        c->add_left_pred = ff_add_left_pred_ssse3;
+        c->add_left_pred_int16 = ff_add_left_pred_int16_ssse3;
+        c->add_gradient_pred   = ff_add_gradient_pred_ssse3;
+    }
+
+    if (EXTERNAL_SSSE3_FAST(cpu_flags)) {
+        c->add_left_pred = ff_add_left_pred_unaligned_ssse3;
+        c->add_left_pred_int16 = ff_add_left_pred_int16_unaligned_ssse3;
+    }
+
+    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+        c->add_bytes       = ff_add_bytes_avx2;
+        c->add_left_pred   = ff_add_left_pred_unaligned_avx2;
+        c->add_gradient_pred = ff_add_gradient_pred_avx2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/lossless_videoencdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/lossless_videoencdsp_init.c
new file mode 100644
index 000000000..40407add5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/lossless_videoencdsp_init.c
@@ -0,0 +1,111 @@
+/*
+ * SIMD-optimized lossless video encoding functions
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/lossless_videoencdsp.h"
+#include "libavcodec/mathops.h"
+
+void ff_diff_bytes_mmx(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
+                       intptr_t w);
+void ff_diff_bytes_sse2(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
+                        intptr_t w);
+void ff_diff_bytes_avx2(uint8_t *dst, const uint8_t *src1, const uint8_t *src2,
+                        intptr_t w);
+
+void ff_sub_left_predict_avx(uint8_t *dst, uint8_t *src,
+                            ptrdiff_t stride, ptrdiff_t width, int height);
+
+#if HAVE_INLINE_ASM
+
+static void sub_median_pred_mmxext(uint8_t *dst, const uint8_t *src1,
+                                   const uint8_t *src2, intptr_t w,
+                                   int *left, int *left_top)
+{
+    x86_reg i = 0;
+    uint8_t l, lt;
+
+    __asm__ volatile (
+        "movq  (%1, %0), %%mm0          \n\t" // LT
+        "psllq $8, %%mm0                \n\t"
+        "1:                             \n\t"
+        "movq  (%1, %0), %%mm1          \n\t" // T
+        "movq  -1(%2, %0), %%mm2        \n\t" // L
+        "movq  (%2, %0), %%mm3          \n\t" // X
+        "movq %%mm2, %%mm4              \n\t" // L
+        "psubb %%mm0, %%mm2             \n\t"
+        "paddb %%mm1, %%mm2             \n\t" // L + T - LT
+        "movq %%mm4, %%mm5              \n\t" // L
+        "pmaxub %%mm1, %%mm4            \n\t" // max(T, L)
+        "pminub %%mm5, %%mm1            \n\t" // min(T, L)
+        "pminub %%mm2, %%mm4            \n\t"
+        "pmaxub %%mm1, %%mm4            \n\t"
+        "psubb %%mm4, %%mm3             \n\t" // dst - pred
+        "movq %%mm3, (%3, %0)           \n\t"
+        "add $8, %0                     \n\t"
+        "movq -1(%1, %0), %%mm0         \n\t" // LT
+        "cmp %4, %0                     \n\t"
+        " jb 1b                         \n\t"
+        : "+r" (i)
+        : "r" (src1), "r" (src2), "r" (dst), "r" ((x86_reg) w));
+
+    l  = *left;
+    lt = *left_top;
+
+    dst[0] = src2[0] - mid_pred(l, src1[0], (l + src1[0] - lt) & 0xFF);
+
+    *left_top = src1[w - 1];
+    *left     = src2[w - 1];
+}
+
+#endif /* HAVE_INLINE_ASM */
+
+av_cold void ff_llvidencdsp_init_x86(LLVidEncDSPContext *c)
+{
+    av_unused int cpu_flags = av_get_cpu_flags();
+
+    if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags)) {
+        c->diff_bytes = ff_diff_bytes_mmx;
+    }
+
+#if HAVE_INLINE_ASM
+    if (INLINE_MMXEXT(cpu_flags)) {
+        c->sub_median_pred = sub_median_pred_mmxext;
+    }
+#endif /* HAVE_INLINE_ASM */
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->diff_bytes = ff_diff_bytes_sse2;
+    }
+
+    if (EXTERNAL_AVX(cpu_flags)) {
+        c->sub_left_predict = ff_sub_left_predict_avx;
+    }
+
+    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+        c->diff_bytes = ff_diff_bytes_avx2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/lpc.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/lpc.c
new file mode 100644
index 000000000..6c72e21ba
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/lpc.c
@@ -0,0 +1,162 @@
+/*
+ * SIMD-optimized LPC functions
+ * Copyright (c) 2007 Loren Merritt
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/lpc.h"
+
+DECLARE_ASM_CONST(16, double, pd_1)[2] = { 1.0, 1.0 };
+DECLARE_ASM_CONST(16, double, pd_2)[2] = { 2.0, 2.0 };
+
+#if HAVE_SSE2_INLINE
+
+static void lpc_apply_welch_window_sse2(const int32_t *data, int len,
+                                        double *w_data)
+{
+    double c = 2.0 / (len-1.0);
+    int n2 = len>>1;
+    x86_reg i = -n2*sizeof(int32_t);
+    x86_reg j =  n2*sizeof(int32_t);
+    __asm__ volatile(
+        "movsd   %4,     %%xmm7                \n\t"
+        "movapd  "MANGLE(pd_1)", %%xmm6        \n\t"
+        "movapd  "MANGLE(pd_2)", %%xmm5        \n\t"
+        "movlhps %%xmm7, %%xmm7                \n\t"
+        "subpd   %%xmm5, %%xmm7                \n\t"
+        "addsd   %%xmm6, %%xmm7                \n\t"
+        "test    $1,     %5                    \n\t"
+        "jz      2f                            \n\t"
+#define WELCH(MOVPD, offset)\
+        "1:                                    \n\t"\
+        "movapd   %%xmm7,  %%xmm1              \n\t"\
+        "mulpd    %%xmm1,  %%xmm1              \n\t"\
+        "movapd   %%xmm6,  %%xmm0              \n\t"\
+        "subpd    %%xmm1,  %%xmm0              \n\t"\
+        "pshufd   $0x4e,   %%xmm0, %%xmm1      \n\t"\
+        "cvtpi2pd (%3,%0), %%xmm2              \n\t"\
+        "cvtpi2pd "#offset"*4(%3,%1), %%xmm3   \n\t"\
+        "mulpd    %%xmm0,  %%xmm2              \n\t"\
+        "mulpd    %%xmm1,  %%xmm3              \n\t"\
+        "movapd   %%xmm2, (%2,%0,2)            \n\t"\
+        MOVPD"    %%xmm3, "#offset"*8(%2,%1,2) \n\t"\
+        "subpd    %%xmm5,  %%xmm7              \n\t"\
+        "sub      $8,      %1                  \n\t"\
+        "add      $8,      %0                  \n\t"\
+        "jl 1b                                 \n\t"\
+
+        WELCH("movupd", -1)
+        "jmp 3f                                \n\t"
+        "2:                                    \n\t"
+        WELCH("movapd", -2)
+        "3:                                    \n\t"
+        :"+&r"(i), "+&r"(j)
+        :"r"(w_data+n2), "r"(data+n2), "m"(c), "r"(len)
+         NAMED_CONSTRAINTS_ARRAY_ADD(pd_1,pd_2)
+         XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
+                                    "%xmm5", "%xmm6", "%xmm7")
+    );
+#undef WELCH
+}
+
+static void lpc_compute_autocorr_sse2(const double *data, int len, int lag,
+                                      double *autoc)
+{
+    int j;
+
+    if((x86_reg)data & 15)
+        data++;
+
+    for(j=0; j<lag; j+=2){
+        x86_reg i = -len*sizeof(double);
+        if(j == lag-2) {
+            __asm__ volatile(
+                "movsd    "MANGLE(pd_1)", %%xmm0    \n\t"
+                "movsd    "MANGLE(pd_1)", %%xmm1    \n\t"
+                "movsd    "MANGLE(pd_1)", %%xmm2    \n\t"
+                "1:                                 \n\t"
+                "movapd   (%2,%0), %%xmm3           \n\t"
+                "movupd -8(%3,%0), %%xmm4           \n\t"
+                "movapd   (%3,%0), %%xmm5           \n\t"
+                "mulpd     %%xmm3, %%xmm4           \n\t"
+                "mulpd     %%xmm3, %%xmm5           \n\t"
+                "mulpd -16(%3,%0), %%xmm3           \n\t"
+                "addpd     %%xmm4, %%xmm1           \n\t"
+                "addpd     %%xmm5, %%xmm0           \n\t"
+                "addpd     %%xmm3, %%xmm2           \n\t"
+                "add       $16,    %0               \n\t"
+                "jl 1b                              \n\t"
+                "movhlps   %%xmm0, %%xmm3           \n\t"
+                "movhlps   %%xmm1, %%xmm4           \n\t"
+                "movhlps   %%xmm2, %%xmm5           \n\t"
+                "addsd     %%xmm3, %%xmm0           \n\t"
+                "addsd     %%xmm4, %%xmm1           \n\t"
+                "addsd     %%xmm5, %%xmm2           \n\t"
+                "movsd     %%xmm0,   (%1)           \n\t"
+                "movsd     %%xmm1,  8(%1)           \n\t"
+                "movsd     %%xmm2, 16(%1)           \n\t"
+                :"+&r"(i)
+                :"r"(autoc+j), "r"(data+len), "r"(data+len-j)
+                 NAMED_CONSTRAINTS_ARRAY_ADD(pd_1)
+                :"memory"
+            );
+        } else {
+            __asm__ volatile(
+                "movsd    "MANGLE(pd_1)", %%xmm0    \n\t"
+                "movsd    "MANGLE(pd_1)", %%xmm1    \n\t"
+                "1:                                 \n\t"
+                "movapd   (%3,%0), %%xmm3           \n\t"
+                "movupd -8(%4,%0), %%xmm4           \n\t"
+                "mulpd     %%xmm3, %%xmm4           \n\t"
+                "mulpd    (%4,%0), %%xmm3           \n\t"
+                "addpd     %%xmm4, %%xmm1           \n\t"
+                "addpd     %%xmm3, %%xmm0           \n\t"
+                "add       $16,    %0               \n\t"
+                "jl 1b                              \n\t"
+                "movhlps   %%xmm0, %%xmm3           \n\t"
+                "movhlps   %%xmm1, %%xmm4           \n\t"
+                "addsd     %%xmm3, %%xmm0           \n\t"
+                "addsd     %%xmm4, %%xmm1           \n\t"
+                "movsd     %%xmm0, %1               \n\t"
+                "movsd     %%xmm1, %2               \n\t"
+                :"+&r"(i), "=m"(autoc[j]), "=m"(autoc[j+1])
+                :"r"(data+len), "r"(data+len-j)
+                 NAMED_CONSTRAINTS_ARRAY_ADD(pd_1)
+            );
+        }
+    }
+}
+
+#endif /* HAVE_SSE2_INLINE */
+
+av_cold void ff_lpc_init_x86(LPCContext *c)
+{
+#if HAVE_SSE2_INLINE
+    int cpu_flags = av_get_cpu_flags();
+
+    if (INLINE_SSE2(cpu_flags) || INLINE_SSE2_SLOW(cpu_flags)) {
+        c->lpc_apply_welch_window = lpc_apply_welch_window_sse2;
+        c->lpc_compute_autocorr   = lpc_compute_autocorr_sse2;
+    }
+#endif /* HAVE_SSE2_INLINE */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mathops.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mathops.h
new file mode 100644
index 000000000..6298f5ed1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mathops.h
@@ -0,0 +1,133 @@
+/*
+ * simple math operations
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> et al
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_MATHOPS_H
+#define AVCODEC_X86_MATHOPS_H
+
+#include "config.h"
+
+#include "libavutil/common.h"
+#include "libavutil/x86/asm.h"
+
+#if HAVE_INLINE_ASM
+
+#if ARCH_X86_32
+
+#define MULL MULL
+static av_always_inline av_const int MULL(int a, int b, unsigned shift)
+{
+    int rt, dummy;
+    __asm__ (
+        "imull %3               \n\t"
+        "shrdl %4, %%edx, %%eax \n\t"
+        :"=a"(rt), "=d"(dummy)
+        :"a"(a), "rm"(b), "ci"((uint8_t)shift)
+    );
+    return rt;
+}
+
+#define MULH MULH
+static av_always_inline av_const int MULH(int a, int b)
+{
+    int rt, dummy;
+    __asm__ (
+        "imull %3"
+        :"=d"(rt), "=a"(dummy)
+        :"a"(a), "rm"(b)
+    );
+    return rt;
+}
+
+#define MUL64 MUL64
+static av_always_inline av_const int64_t MUL64(int a, int b)
+{
+    int64_t rt;
+    __asm__ (
+        "imull %2"
+        :"=A"(rt)
+        :"a"(a), "rm"(b)
+    );
+    return rt;
+}
+
+#endif /* ARCH_X86_32 */
+
+#if HAVE_I686
+/* median of 3 */
+#define mid_pred mid_pred
+static inline av_const int mid_pred(int a, int b, int c)
+{
+    int i=b;
+    __asm__ (
+        "cmp    %2, %1 \n\t"
+        "cmovg  %1, %0 \n\t"
+        "cmovg  %2, %1 \n\t"
+        "cmp    %3, %1 \n\t"
+        "cmovl  %3, %1 \n\t"
+        "cmp    %1, %0 \n\t"
+        "cmovg  %1, %0 \n\t"
+        :"+&r"(i), "+&r"(a)
+        :"r"(b), "r"(c)
+    );
+    return i;
+}
+
+#if HAVE_6REGS
+#define COPY3_IF_LT(x, y, a, b, c, d)\
+__asm__ volatile(\
+    "cmpl  %0, %3       \n\t"\
+    "cmovl %3, %0       \n\t"\
+    "cmovl %4, %1       \n\t"\
+    "cmovl %5, %2       \n\t"\
+    : "+&r" (x), "+&r" (a), "+r" (c)\
+    : "r" (y), "r" (b), "r" (d)\
+);
+#endif /* HAVE_6REGS */
+
+#endif /* HAVE_I686 */
+
+#define MASK_ABS(mask, level)                   \
+    __asm__ ("cdq                    \n\t"      \
+             "xorl %1, %0            \n\t"      \
+             "subl %1, %0            \n\t"      \
+             : "+a"(level), "=&d"(mask))
+
+// avoid +32 for shift optimization (gcc should do that ...)
+#define NEG_SSR32 NEG_SSR32
+static inline  int32_t NEG_SSR32( int32_t a, int8_t s){
+    __asm__ ("sarl %1, %0\n\t"
+         : "+r" (a)
+         : "ic" ((uint8_t)(-s))
+    );
+    return a;
+}
+
+#define NEG_USR32 NEG_USR32
+static inline uint32_t NEG_USR32(uint32_t a, int8_t s){
+    __asm__ ("shrl %1, %0\n\t"
+         : "+r" (a)
+         : "ic" ((uint8_t)(-s))
+    );
+    return a;
+}
+
+#endif /* HAVE_INLINE_ASM */
+#endif /* AVCODEC_X86_MATHOPS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mdct15.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mdct15.asm
new file mode 100644
index 000000000..2a2cdbd21
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mdct15.asm
@@ -0,0 +1,221 @@
+;******************************************************************************
+;* SIMD optimized non-power-of-two MDCT functions
+;*
+;* Copyright (C) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION_RODATA 32
+
+perm_neg: dd 2, 5, 3, 4, 6, 1, 7, 0
+perm_pos: dd 0, 7, 1, 6, 4, 3, 5, 2
+sign_adjust_r: times 4 dd 0x80000000, 0x00000000
+
+sign_adjust_5: dd 0x00000000, 0x80000000, 0x80000000, 0x00000000
+
+SECTION .text
+
+%if ARCH_X86_64
+
+;*****************************************************************************************
+;void ff_fft15_avx(FFTComplex *out, FFTComplex *in, FFTComplex *exptab, ptrdiff_t stride);
+;*****************************************************************************************
+%macro FFT5 3 ; %1 - in_offset, %2 - dst1 (64bit used), %3 - dst2
+    VBROADCASTSD m0, [inq + %1]         ; in[ 0].re, in[ 0].im, in[ 0].re, in[ 0].im
+    movsd   xm1, [inq + 1*16 +  8 + %1] ; in[ 3].re, in[ 3].im,         0,         0
+    movsd   xm4, [inq + 6*16 +  0 + %1] ; in[12].re, in[12].im,         0,         0
+    movhps  xm1, [inq + 3*16 +  0 + %1] ; in[ 3].re, in[ 3].im, in[ 6].re, in[ 6].im
+    movhps  xm4, [inq + 4*16 +  8 + %1] ; in[12].re, in[12].im, in[ 9].re, in[ 9].im
+
+    subps       xm2,  xm1, xm4          ; t[2].im, t[2].re, t[3].im, t[3].re
+    addps       xm1,  xm4               ; t[0].re, t[0].im, t[1].re, t[1].im
+
+    movhlps     %2,   xm1               ; t[0].re, t[1].re, t[0].im, t[1].im
+    addps       %2,   xm1
+    addps       %2,   xm0               ; DC[0].re, DC[0].im, junk...
+    movlhps     %2,   %2                ; DC[0].re, DC[0].im, DC[0].re, DC[0].im
+
+    shufps      xm3,  xm1, xm2, q0110   ; t[0].re, t[0].im, t[2].re, t[2].im
+    shufps      xm1,  xm2, q2332        ; t[1].re, t[1].im, t[3].re, t[3].im
+
+    mulps       xm%3, xm1, xm5
+    mulps       xm4,  xm3, xm6
+    mulps       xm1,  xm6
+
+    xorps       xm1,  xm7
+    mulps       xm3,  xm5
+    addsubps    xm3,  xm1               ; t[0].re, t[0].im, t[2].re, t[2].im
+    subps       xm%3, xm4               ; t[4].re, t[4].im, t[5].re, t[5].im
+
+    movhlps     xm2, xm%3, xm3          ; t[2].re, t[2].im, t[5].re, t[5].im
+    movlhps     xm3, xm%3               ; t[0].re, t[0].im, t[4].re, t[4].im
+
+    xorps       xm2,  xm7
+    addps       xm%3, xm2, xm3
+    subps       xm3,  xm2
+
+    shufps      xm3,  xm3, q1032
+    vinsertf128 m%3,  m%3, xm3, 1       ; All ACs (tmp[1] through to tmp[4])
+    addps       m%3,  m%3,  m0          ; Finally offset with DCs
+%endmacro
+
+%macro BUTTERFLIES_DC 1 ; %1 - exptab_offset
+    mulps xm0,  xm9, [exptabq + %1 + 16*0]
+    mulps xm1, xm10, [exptabq + %1 + 16*1]
+
+    haddps  xm0,  xm1
+    movhlps xm1,  xm0                   ; t[0].re, t[1].re, t[0].im, t[1].im
+
+    addps   xm0,  xm1
+    addps   xm0,  xm8
+
+    movsd [outq], xm0
+%endmacro
+
+%macro BUTTERFLIES_AC 1 ; %1 - exptab_offset
+    mulps  m0, m12, [exptabq + 64*0 + 0*mmsize + %1]
+    mulps  m1, m12, [exptabq + 64*0 + 1*mmsize + %1]
+    mulps  m2, m13, [exptabq + 64*1 + 0*mmsize + %1]
+    mulps  m3, m13, [exptabq + 64*1 + 1*mmsize + %1]
+
+    addps  m0, m0, m2
+    addps  m1, m1, m3
+    addps  m0, m0, m11
+
+    shufps m1, m1, m1, q2301
+    addps  m0, m0, m1
+
+    vextractf128 xm1, m0, 1
+
+    movlps [outq + strideq*1], xm0
+    movhps [outq + strideq*2], xm0
+    movlps [outq +  stride3q], xm1
+    movhps [outq + strideq*4], xm1
+%endmacro
+
+INIT_YMM avx
+cglobal fft15, 4, 5, 14, out, in, exptab, stride, stride5
+    shl strideq, 3
+
+    movaps xm5, [exptabq + 480 + 16*0]
+    movaps xm6, [exptabq + 480 + 16*1]
+    movaps xm7, [sign_adjust_5]
+
+    FFT5  0,  xm8, 11
+    FFT5  8,  xm9, 12
+    FFT5 16, xm10, 13
+
+%define stride3q inq
+    lea stride3q, [strideq + strideq*2]
+    lea stride5q, [strideq + strideq*4]
+
+    BUTTERFLIES_DC (8*6 + 4*0)*2*4
+    BUTTERFLIES_AC (8*0 + 0*0)*2*4
+
+    add outq, stride5q
+    BUTTERFLIES_DC (8*6 + 4*1)*2*4
+    BUTTERFLIES_AC (8*2 + 0*0)*2*4
+
+    add outq, stride5q
+    BUTTERFLIES_DC (8*6 + 4*2)*2*4
+    BUTTERFLIES_AC (8*4 + 0*0)*2*4
+
+    RET
+
+%endif ; ARCH_X86_64
+
+;*******************************************************************************************************
+;void ff_mdct15_postreindex(FFTComplex *out, FFTComplex *in, FFTComplex *exp, int *lut, ptrdiff_t len8);
+;*******************************************************************************************************
+%macro LUT_LOAD_4D 3
+    mov      r4d, [lutq + %3q*4 +  0]
+    movsd  xmm%1, [inq +  r4q*8]
+    mov      r4d, [lutq + %3q*4 +  4]
+    movhps xmm%1, [inq +  r4q*8]
+%if cpuflag(avx2)
+    mov      r4d, [lutq + %3q*4 +  8]
+    movsd     %2, [inq +  r4q*8]
+    mov      r4d, [lutq + %3q*4 + 12]
+    movhps    %2, [inq +  r4q*8]
+    vinsertf128 %1, %1, %2, 1
+%endif
+%endmacro
+
+%macro POSTROTATE_FN 1
+cglobal mdct15_postreindex, 5, 7, 8 + cpuflag(avx2)*2, out, in, exp, lut, len8, offset_p, offset_n
+
+    xor offset_nq, offset_nq
+    lea offset_pq, [len8q*2 - %1]
+
+    movaps m7,  [sign_adjust_r]
+
+%if cpuflag(avx2)
+    movaps   m8, [perm_pos]
+    movaps   m9, [perm_neg]
+%endif
+
+.loop:
+    movups m0, [expq + offset_pq*8]     ; exp[p0].re, exp[p0].im, exp[p1].re, exp[p1].im, exp[p2].re, exp[p2].im, exp[p3].re, exp[p3].im
+    movups m1, [expq + offset_nq*8]     ; exp[n3].re, exp[n3].im, exp[n2].re, exp[n2].im, exp[n1].re, exp[n1].im, exp[n0].re, exp[n0].im
+
+    LUT_LOAD_4D m3, xm4, offset_p       ; in[p0].re, in[p0].im, in[p1].re, in[p1].im, in[p2].re, in[p2].im, in[p3].re, in[p3].im
+    LUT_LOAD_4D m4, xm5, offset_n       ; in[n3].re, in[n3].im, in[n2].re, in[n2].im, in[n1].re, in[n1].im, in[n0].re, in[n0].im
+
+    mulps  m5, m3, m0                   ; in[p].reim * exp[p].reim
+    mulps  m6, m4, m1                   ; in[n].reim * exp[n].reim
+
+    xorps  m5, m7                       ; in[p].re *= -1, in[p].im *= 1
+    xorps  m6, m7                       ; in[n].re *= -1, in[n].im *= 1
+
+    shufps m3, m3, m3, q2301            ; in[p].imre
+    shufps m4, m4, m4, q2301            ; in[n].imre
+
+    mulps  m3, m0                       ; in[p].imre * exp[p].reim
+    mulps  m4, m1                       ; in[n].imre * exp[n].reim
+
+    haddps m3, m6                       ; out[n0].im, out[n1].im, out[n3].re, out[n2].re, out[n2].im, out[n3].im, out[n1].re, out[n0].re
+    haddps m5, m4                       ; out[p0].re, out[p1].re, out[p3].im, out[p2].im, out[p2].re, out[p3].re, out[p1].im, out[p0].im
+
+%if cpuflag(avx2)
+    vpermps m3, m9, m3                  ; out[n3].im, out[n3].re, out[n2].im, out[n2].re, out[n1].im, out[n1].re, out[n0].im, out[n0].re
+    vpermps m5, m8, m5                  ; out[p0].re, out[p0].im, out[p1].re, out[p1].im, out[p2].re, out[p2].im, out[p3].re, out[p3].im
+%else
+    shufps m3, m3, m3, q0312
+    shufps m5, m5, m5, q2130
+%endif
+
+    movups [outq + offset_nq*8], m3
+    movups [outq + offset_pq*8], m5
+
+    sub offset_pq, %1
+    add offset_nq, %1
+    cmp offset_nq, offset_pq
+    jle .loop
+
+    REP_RET
+%endmacro
+
+INIT_XMM sse3
+POSTROTATE_FN 2
+
+%if ARCH_X86_64 && HAVE_AVX2_EXTERNAL
+INIT_YMM avx2
+POSTROTATE_FN 4
+%endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mdct15_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mdct15_init.c
new file mode 100644
index 000000000..444801d9c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mdct15_init.c
@@ -0,0 +1,99 @@
+/*
+ * SIMD optimized non-power-of-two MDCT functions
+ *
+ * Copyright (C) 2017 Rostislav Pehlivanov <atomnuker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/mdct15.h"
+
+void ff_mdct15_postreindex_sse3(FFTComplex *out, FFTComplex *in, FFTComplex *exp, int *lut, ptrdiff_t len8);
+void ff_mdct15_postreindex_avx2(FFTComplex *out, FFTComplex *in, FFTComplex *exp, int *lut, ptrdiff_t len8);
+
+void ff_fft15_avx(FFTComplex *out, FFTComplex *in, FFTComplex *exptab, ptrdiff_t stride);
+
+static void perm_twiddles(MDCT15Context *s)
+{
+    int k;
+    FFTComplex tmp[30];
+
+    /* 5-point FFT twiddles */
+    s->exptab[60].re = s->exptab[60].im = s->exptab[19].re;
+    s->exptab[61].re = s->exptab[61].im = s->exptab[19].im;
+    s->exptab[62].re = s->exptab[62].im = s->exptab[20].re;
+    s->exptab[63].re = s->exptab[63].im = s->exptab[20].im;
+
+    /* 15-point FFT twiddles */
+    for (k = 0; k < 5; k++) {
+        tmp[6*k + 0] = s->exptab[k +  0];
+        tmp[6*k + 2] = s->exptab[k +  5];
+        tmp[6*k + 4] = s->exptab[k + 10];
+
+        tmp[6*k + 1] = s->exptab[2 * (k + 0)];
+        tmp[6*k + 3] = s->exptab[2 * (k + 5)];
+        tmp[6*k + 5] = s->exptab[2 *  k + 5 ];
+    }
+
+    for (k = 0; k < 6; k++) {
+        FFTComplex ac_exp[] = {
+            { tmp[6*1 + k].re,  tmp[6*1 + k].re },
+            { tmp[6*2 + k].re,  tmp[6*2 + k].re },
+            { tmp[6*3 + k].re,  tmp[6*3 + k].re },
+            { tmp[6*4 + k].re,  tmp[6*4 + k].re },
+            { tmp[6*1 + k].im, -tmp[6*1 + k].im },
+            { tmp[6*2 + k].im, -tmp[6*2 + k].im },
+            { tmp[6*3 + k].im, -tmp[6*3 + k].im },
+            { tmp[6*4 + k].im, -tmp[6*4 + k].im },
+        };
+        memcpy(s->exptab + 8*k, ac_exp, 8*sizeof(FFTComplex));
+    }
+
+    /* Specialcase when k = 0 */
+    for (k = 0; k < 3; k++) {
+        FFTComplex dc_exp[] = {
+            { tmp[2*k + 0].re, -tmp[2*k + 0].im },
+            { tmp[2*k + 0].im,  tmp[2*k + 0].re },
+            { tmp[2*k + 1].re, -tmp[2*k + 1].im },
+            { tmp[2*k + 1].im,  tmp[2*k + 1].re },
+        };
+        memcpy(s->exptab + 8*6 + 4*k, dc_exp, 4*sizeof(FFTComplex));
+    }
+}
+
+av_cold void ff_mdct15_init_x86(MDCT15Context *s)
+{
+    int adjust_twiddles = 0;
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE3(cpu_flags))
+        s->postreindex = ff_mdct15_postreindex_sse3;
+
+    if (ARCH_X86_64 && EXTERNAL_AVX(cpu_flags)) {
+        s->fft15 = ff_fft15_avx;
+        adjust_twiddles = 1;
+    }
+
+    if (ARCH_X86_64 && EXTERNAL_AVX2_FAST(cpu_flags))
+        s->postreindex = ff_mdct15_postreindex_avx2;
+
+    if (adjust_twiddles)
+        perm_twiddles(s);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/me_cmp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/me_cmp_init.c
new file mode 100644
index 000000000..6aec93e55
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/me_cmp_init.c
@@ -0,0 +1,651 @@
+/*
+ * SIMD-optimized motion estimation
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/me_cmp.h"
+#include "libavcodec/mpegvideo.h"
+
+int ff_sum_abs_dctelem_mmx(int16_t *block);
+int ff_sum_abs_dctelem_mmxext(int16_t *block);
+int ff_sum_abs_dctelem_sse2(int16_t *block);
+int ff_sum_abs_dctelem_ssse3(int16_t *block);
+int ff_sse8_mmx(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                ptrdiff_t stride, int h);
+int ff_sse16_mmx(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                 ptrdiff_t stride, int h);
+int ff_sse16_sse2(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                  ptrdiff_t stride, int h);
+int ff_hf_noise8_mmx(uint8_t *pix1, ptrdiff_t stride, int h);
+int ff_hf_noise16_mmx(uint8_t *pix1, ptrdiff_t stride, int h);
+int ff_sad8_mmxext(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                   ptrdiff_t stride, int h);
+int ff_sad16_mmxext(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                    ptrdiff_t stride, int h);
+int ff_sad16_sse2(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                  ptrdiff_t stride, int h);
+int ff_sad8_x2_mmxext(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                      ptrdiff_t stride, int h);
+int ff_sad16_x2_mmxext(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                       ptrdiff_t stride, int h);
+int ff_sad16_x2_sse2(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                     ptrdiff_t stride, int h);
+int ff_sad8_y2_mmxext(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                      ptrdiff_t stride, int h);
+int ff_sad16_y2_mmxext(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                       ptrdiff_t stride, int h);
+int ff_sad16_y2_sse2(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                     ptrdiff_t stride, int h);
+int ff_sad8_approx_xy2_mmxext(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                              ptrdiff_t stride, int h);
+int ff_sad16_approx_xy2_mmxext(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                               ptrdiff_t stride, int h);
+int ff_sad16_approx_xy2_sse2(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                             ptrdiff_t stride, int h);
+int ff_vsad_intra8_mmxext(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                          ptrdiff_t stride, int h);
+int ff_vsad_intra16_mmxext(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                           ptrdiff_t stride, int h);
+int ff_vsad_intra16_sse2(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                         ptrdiff_t stride, int h);
+int ff_vsad8_approx_mmxext(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                    ptrdiff_t stride, int h);
+int ff_vsad16_approx_mmxext(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                     ptrdiff_t stride, int h);
+int ff_vsad16_approx_sse2(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                   ptrdiff_t stride, int h);
+
+#define hadamard_func(cpu)                                                    \
+    int ff_hadamard8_diff_ ## cpu(MpegEncContext *s, uint8_t *src1,           \
+                                  uint8_t *src2, ptrdiff_t stride, int h);    \
+    int ff_hadamard8_diff16_ ## cpu(MpegEncContext *s, uint8_t *src1,         \
+                                    uint8_t *src2, ptrdiff_t stride, int h);
+
+hadamard_func(mmx)
+hadamard_func(mmxext)
+hadamard_func(sse2)
+hadamard_func(ssse3)
+
+#if HAVE_X86ASM
+static int nsse16_mmx(MpegEncContext *c, uint8_t *pix1, uint8_t *pix2,
+                      ptrdiff_t stride, int h)
+{
+    int score1, score2;
+
+    if (c)
+        score1 = c->mecc.sse[0](c, pix1, pix2, stride, h);
+    else
+        score1 = ff_sse16_mmx(c, pix1, pix2, stride, h);
+    score2 = ff_hf_noise16_mmx(pix1, stride, h) + ff_hf_noise8_mmx(pix1+8, stride, h)
+           - ff_hf_noise16_mmx(pix2, stride, h) - ff_hf_noise8_mmx(pix2+8, stride, h);
+
+    if (c)
+        return score1 + FFABS(score2) * c->avctx->nsse_weight;
+    else
+        return score1 + FFABS(score2) * 8;
+}
+
+static int nsse8_mmx(MpegEncContext *c, uint8_t *pix1, uint8_t *pix2,
+                     ptrdiff_t stride, int h)
+{
+    int score1 = ff_sse8_mmx(c, pix1, pix2, stride, h);
+    int score2 = ff_hf_noise8_mmx(pix1, stride, h) -
+                 ff_hf_noise8_mmx(pix2, stride, h);
+
+    if (c)
+        return score1 + FFABS(score2) * c->avctx->nsse_weight;
+    else
+        return score1 + FFABS(score2) * 8;
+}
+
+#endif /* HAVE_X86ASM */
+
+#if HAVE_INLINE_ASM
+
+static int vsad_intra16_mmx(MpegEncContext *v, uint8_t *pix, uint8_t *dummy,
+                            ptrdiff_t stride, int h)
+{
+    int tmp;
+
+    av_assert2((((int) pix) & 7) == 0);
+    av_assert2((stride & 7) == 0);
+
+#define SUM(in0, in1, out0, out1)               \
+    "movq (%0), %%mm2\n"                        \
+    "movq 8(%0), %%mm3\n"                       \
+    "add %2,%0\n"                               \
+    "movq %%mm2, " #out0 "\n"                   \
+    "movq %%mm3, " #out1 "\n"                   \
+    "psubusb " #in0 ", %%mm2\n"                 \
+    "psubusb " #in1 ", %%mm3\n"                 \
+    "psubusb " #out0 ", " #in0 "\n"             \
+    "psubusb " #out1 ", " #in1 "\n"             \
+    "por %%mm2, " #in0 "\n"                     \
+    "por %%mm3, " #in1 "\n"                     \
+    "movq " #in0 ", %%mm2\n"                    \
+    "movq " #in1 ", %%mm3\n"                    \
+    "punpcklbw %%mm7, " #in0 "\n"               \
+    "punpcklbw %%mm7, " #in1 "\n"               \
+    "punpckhbw %%mm7, %%mm2\n"                  \
+    "punpckhbw %%mm7, %%mm3\n"                  \
+    "paddw " #in1 ", " #in0 "\n"                \
+    "paddw %%mm3, %%mm2\n"                      \
+    "paddw %%mm2, " #in0 "\n"                   \
+    "paddw " #in0 ", %%mm6\n"
+
+
+    __asm__ volatile (
+        "movl    %3, %%ecx\n"
+        "pxor %%mm6, %%mm6\n"
+        "pxor %%mm7, %%mm7\n"
+        "movq  (%0), %%mm0\n"
+        "movq 8(%0), %%mm1\n"
+        "add %2, %0\n"
+        "jmp 2f\n"
+        "1:\n"
+
+        SUM(%%mm4, %%mm5, %%mm0, %%mm1)
+        "2:\n"
+        SUM(%%mm0, %%mm1, %%mm4, %%mm5)
+
+        "subl $2, %%ecx\n"
+        "jnz 1b\n"
+
+        "movq  %%mm6, %%mm0\n"
+        "psrlq $32,   %%mm6\n"
+        "paddw %%mm6, %%mm0\n"
+        "movq  %%mm0, %%mm6\n"
+        "psrlq $16,   %%mm0\n"
+        "paddw %%mm6, %%mm0\n"
+        "movd  %%mm0, %1\n"
+        : "+r" (pix), "=r" (tmp)
+        : "r" (stride), "m" (h)
+        : "%ecx");
+
+    return tmp & 0xFFFF;
+}
+#undef SUM
+
+static int vsad16_mmx(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
+                      ptrdiff_t stride, int h)
+{
+    int tmp;
+
+    av_assert2((((int) pix1) & 7) == 0);
+    av_assert2((((int) pix2) & 7) == 0);
+    av_assert2((stride & 7) == 0);
+
+#define SUM(in0, in1, out0, out1)       \
+    "movq (%0), %%mm2\n"                \
+    "movq (%1), " #out0 "\n"            \
+    "movq 8(%0), %%mm3\n"               \
+    "movq 8(%1), " #out1 "\n"           \
+    "add %3, %0\n"                      \
+    "add %3, %1\n"                      \
+    "psubb " #out0 ", %%mm2\n"          \
+    "psubb " #out1 ", %%mm3\n"          \
+    "pxor %%mm7, %%mm2\n"               \
+    "pxor %%mm7, %%mm3\n"               \
+    "movq %%mm2, " #out0 "\n"           \
+    "movq %%mm3, " #out1 "\n"           \
+    "psubusb " #in0 ", %%mm2\n"         \
+    "psubusb " #in1 ", %%mm3\n"         \
+    "psubusb " #out0 ", " #in0 "\n"     \
+    "psubusb " #out1 ", " #in1 "\n"     \
+    "por %%mm2, " #in0 "\n"             \
+    "por %%mm3, " #in1 "\n"             \
+    "movq " #in0 ", %%mm2\n"            \
+    "movq " #in1 ", %%mm3\n"            \
+    "punpcklbw %%mm7, " #in0 "\n"       \
+    "punpcklbw %%mm7, " #in1 "\n"       \
+    "punpckhbw %%mm7, %%mm2\n"          \
+    "punpckhbw %%mm7, %%mm3\n"          \
+    "paddw " #in1 ", " #in0 "\n"        \
+    "paddw %%mm3, %%mm2\n"              \
+    "paddw %%mm2, " #in0 "\n"           \
+    "paddw " #in0 ", %%mm6\n"
+
+
+    __asm__ volatile (
+        "movl %4, %%ecx\n"
+        "pxor %%mm6, %%mm6\n"
+        "pcmpeqw %%mm7, %%mm7\n"
+        "psllw $15, %%mm7\n"
+        "packsswb %%mm7, %%mm7\n"
+        "movq (%0), %%mm0\n"
+        "movq (%1), %%mm2\n"
+        "movq 8(%0), %%mm1\n"
+        "movq 8(%1), %%mm3\n"
+        "add %3, %0\n"
+        "add %3, %1\n"
+        "psubb %%mm2, %%mm0\n"
+        "psubb %%mm3, %%mm1\n"
+        "pxor %%mm7, %%mm0\n"
+        "pxor %%mm7, %%mm1\n"
+        "jmp 2f\n"
+        "1:\n"
+
+        SUM(%%mm4, %%mm5, %%mm0, %%mm1)
+        "2:\n"
+        SUM(%%mm0, %%mm1, %%mm4, %%mm5)
+
+        "subl $2, %%ecx\n"
+        "jnz 1b\n"
+
+        "movq %%mm6, %%mm0\n"
+        "psrlq $32, %%mm6\n"
+        "paddw %%mm6, %%mm0\n"
+        "movq %%mm0, %%mm6\n"
+        "psrlq $16, %%mm0\n"
+        "paddw %%mm6, %%mm0\n"
+        "movd %%mm0, %2\n"
+        : "+r" (pix1), "+r" (pix2), "=r" (tmp)
+        : "r" (stride), "m" (h)
+        : "%ecx");
+
+    return tmp & 0x7FFF;
+}
+#undef SUM
+
+DECLARE_ASM_CONST(8, uint64_t, round_tab)[3] = {
+    0x0000000000000000ULL,
+    0x0001000100010001ULL,
+    0x0002000200020002ULL,
+};
+
+static inline void sad8_1_mmx(uint8_t *blk1, uint8_t *blk2,
+                              ptrdiff_t stride, int h)
+{
+    x86_reg len = -stride * h;
+    __asm__ volatile (
+        ".p2align 4                     \n\t"
+        "1:                             \n\t"
+        "movq (%1, %%"FF_REG_a"), %%mm0 \n\t"
+        "movq (%2, %%"FF_REG_a"), %%mm2 \n\t"
+        "movq (%2, %%"FF_REG_a"), %%mm4 \n\t"
+        "add %3, %%"FF_REG_a"           \n\t"
+        "psubusb %%mm0, %%mm2           \n\t"
+        "psubusb %%mm4, %%mm0           \n\t"
+        "movq (%1, %%"FF_REG_a"), %%mm1 \n\t"
+        "movq (%2, %%"FF_REG_a"), %%mm3 \n\t"
+        "movq (%2, %%"FF_REG_a"), %%mm5 \n\t"
+        "psubusb %%mm1, %%mm3           \n\t"
+        "psubusb %%mm5, %%mm1           \n\t"
+        "por %%mm2, %%mm0               \n\t"
+        "por %%mm1, %%mm3               \n\t"
+        "movq %%mm0, %%mm1              \n\t"
+        "movq %%mm3, %%mm2              \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpckhbw %%mm7, %%mm1         \n\t"
+        "punpcklbw %%mm7, %%mm3         \n\t"
+        "punpckhbw %%mm7, %%mm2         \n\t"
+        "paddw %%mm1, %%mm0             \n\t"
+        "paddw %%mm3, %%mm2             \n\t"
+        "paddw %%mm2, %%mm0             \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "add %3, %%"FF_REG_a"           \n\t"
+        " js 1b                         \n\t"
+        : "+a" (len)
+        : "r" (blk1 - len), "r" (blk2 - len), "r" (stride));
+}
+
+static inline void sad8_2_mmx(uint8_t *blk1a, uint8_t *blk1b, uint8_t *blk2,
+                              ptrdiff_t stride, int h)
+{
+    x86_reg len = -stride * h;
+    __asm__ volatile (
+        ".p2align 4                     \n\t"
+        "1:                             \n\t"
+        "movq (%1, %%"FF_REG_a"), %%mm0 \n\t"
+        "movq (%2, %%"FF_REG_a"), %%mm1 \n\t"
+        "movq (%1, %%"FF_REG_a"), %%mm2 \n\t"
+        "movq (%2, %%"FF_REG_a"), %%mm3 \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpcklbw %%mm7, %%mm1         \n\t"
+        "punpckhbw %%mm7, %%mm2         \n\t"
+        "punpckhbw %%mm7, %%mm3         \n\t"
+        "paddw %%mm0, %%mm1             \n\t"
+        "paddw %%mm2, %%mm3             \n\t"
+        "movq (%3, %%"FF_REG_a"), %%mm4 \n\t"
+        "movq (%3, %%"FF_REG_a"), %%mm2 \n\t"
+        "paddw %%mm5, %%mm1             \n\t"
+        "paddw %%mm5, %%mm3             \n\t"
+        "psrlw $1, %%mm1                \n\t"
+        "psrlw $1, %%mm3                \n\t"
+        "packuswb %%mm3, %%mm1          \n\t"
+        "psubusb %%mm1, %%mm4           \n\t"
+        "psubusb %%mm2, %%mm1           \n\t"
+        "por %%mm4, %%mm1               \n\t"
+        "movq %%mm1, %%mm0              \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpckhbw %%mm7, %%mm1         \n\t"
+        "paddw %%mm1, %%mm0             \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "add %4, %%"FF_REG_a"           \n\t"
+        " js 1b                         \n\t"
+        : "+a" (len)
+        : "r" (blk1a - len), "r" (blk1b - len), "r" (blk2 - len),
+          "r" (stride));
+}
+
+static inline void sad8_4_mmx(uint8_t *blk1, uint8_t *blk2,
+                              ptrdiff_t stride, int h)
+{
+    x86_reg len = -stride * h;
+    __asm__ volatile (
+        "movq  (%1, %%"FF_REG_a"), %%mm0\n\t"
+        "movq 1(%1, %%"FF_REG_a"), %%mm2\n\t"
+        "movq %%mm0, %%mm1              \n\t"
+        "movq %%mm2, %%mm3              \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpckhbw %%mm7, %%mm1         \n\t"
+        "punpcklbw %%mm7, %%mm2         \n\t"
+        "punpckhbw %%mm7, %%mm3         \n\t"
+        "paddw %%mm2, %%mm0             \n\t"
+        "paddw %%mm3, %%mm1             \n\t"
+        ".p2align 4                     \n\t"
+        "1:                             \n\t"
+        "movq  (%2, %%"FF_REG_a"), %%mm2\n\t"
+        "movq 1(%2, %%"FF_REG_a"), %%mm4\n\t"
+        "movq %%mm2, %%mm3              \n\t"
+        "movq %%mm4, %%mm5              \n\t"
+        "punpcklbw %%mm7, %%mm2         \n\t"
+        "punpckhbw %%mm7, %%mm3         \n\t"
+        "punpcklbw %%mm7, %%mm4         \n\t"
+        "punpckhbw %%mm7, %%mm5         \n\t"
+        "paddw %%mm4, %%mm2             \n\t"
+        "paddw %%mm5, %%mm3             \n\t"
+        "movq %5, %%mm5                 \n\t"
+        "paddw %%mm2, %%mm0             \n\t"
+        "paddw %%mm3, %%mm1             \n\t"
+        "paddw %%mm5, %%mm0             \n\t"
+        "paddw %%mm5, %%mm1             \n\t"
+        "movq (%3, %%"FF_REG_a"), %%mm4 \n\t"
+        "movq (%3, %%"FF_REG_a"), %%mm5 \n\t"
+        "psrlw $2, %%mm0                \n\t"
+        "psrlw $2, %%mm1                \n\t"
+        "packuswb %%mm1, %%mm0          \n\t"
+        "psubusb %%mm0, %%mm4           \n\t"
+        "psubusb %%mm5, %%mm0           \n\t"
+        "por %%mm4, %%mm0               \n\t"
+        "movq %%mm0, %%mm4              \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpckhbw %%mm7, %%mm4         \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "paddw %%mm4, %%mm6             \n\t"
+        "movq  %%mm2, %%mm0             \n\t"
+        "movq  %%mm3, %%mm1             \n\t"
+        "add %4, %%"FF_REG_a"           \n\t"
+        " js 1b                         \n\t"
+        : "+a" (len)
+        : "r" (blk1 - len), "r" (blk1 - len + stride), "r" (blk2 - len),
+          "r" (stride), "m" (round_tab[2]));
+}
+
+static inline int sum_mmx(void)
+{
+    int ret;
+    __asm__ volatile (
+        "movq %%mm6, %%mm0              \n\t"
+        "psrlq $32, %%mm6               \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "movq %%mm6, %%mm0              \n\t"
+        "psrlq $16, %%mm6               \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "movd %%mm6, %0                 \n\t"
+        : "=r" (ret));
+    return ret & 0xFFFF;
+}
+
+static inline void sad8_x2a_mmx(uint8_t *blk1, uint8_t *blk2,
+                                ptrdiff_t stride, int h)
+{
+    sad8_2_mmx(blk1, blk1 + 1, blk2, stride, h);
+}
+
+static inline void sad8_y2a_mmx(uint8_t *blk1, uint8_t *blk2,
+                                ptrdiff_t stride, int h)
+{
+    sad8_2_mmx(blk1, blk1 + stride, blk2, stride, h);
+}
+
+#define PIX_SAD(suf)                                                    \
+static int sad8_ ## suf(MpegEncContext *v, uint8_t *blk2,               \
+                        uint8_t *blk1, ptrdiff_t stride, int h)         \
+{                                                                       \
+    av_assert2(h == 8);                                                     \
+    __asm__ volatile (                                                  \
+        "pxor %%mm7, %%mm7     \n\t"                                    \
+        "pxor %%mm6, %%mm6     \n\t"                                    \
+        :);                                                             \
+                                                                        \
+    sad8_1_ ## suf(blk1, blk2, stride, 8);                              \
+                                                                        \
+    return sum_ ## suf();                                               \
+}                                                                       \
+                                                                        \
+static int sad8_x2_ ## suf(MpegEncContext *v, uint8_t *blk2,            \
+                           uint8_t *blk1, ptrdiff_t stride, int h)      \
+{                                                                       \
+    av_assert2(h == 8);                                                     \
+    __asm__ volatile (                                                  \
+        "pxor %%mm7, %%mm7     \n\t"                                    \
+        "pxor %%mm6, %%mm6     \n\t"                                    \
+        "movq %0, %%mm5        \n\t"                                    \
+        :: "m" (round_tab[1]));                                         \
+                                                                        \
+    sad8_x2a_ ## suf(blk1, blk2, stride, 8);                            \
+                                                                        \
+    return sum_ ## suf();                                               \
+}                                                                       \
+                                                                        \
+static int sad8_y2_ ## suf(MpegEncContext *v, uint8_t *blk2,            \
+                           uint8_t *blk1, ptrdiff_t stride, int h)      \
+{                                                                       \
+    av_assert2(h == 8);                                                     \
+    __asm__ volatile (                                                  \
+        "pxor %%mm7, %%mm7     \n\t"                                    \
+        "pxor %%mm6, %%mm6     \n\t"                                    \
+        "movq %0, %%mm5        \n\t"                                    \
+        :: "m" (round_tab[1]));                                         \
+                                                                        \
+    sad8_y2a_ ## suf(blk1, blk2, stride, 8);                            \
+                                                                        \
+    return sum_ ## suf();                                               \
+}                                                                       \
+                                                                        \
+static int sad8_xy2_ ## suf(MpegEncContext *v, uint8_t *blk2,           \
+                            uint8_t *blk1, ptrdiff_t stride, int h)     \
+{                                                                       \
+    av_assert2(h == 8);                                                     \
+    __asm__ volatile (                                                  \
+        "pxor %%mm7, %%mm7     \n\t"                                    \
+        "pxor %%mm6, %%mm6     \n\t"                                    \
+        ::);                                                            \
+                                                                        \
+    sad8_4_ ## suf(blk1, blk2, stride, 8);                              \
+                                                                        \
+    return sum_ ## suf();                                               \
+}                                                                       \
+                                                                        \
+static int sad16_ ## suf(MpegEncContext *v, uint8_t *blk2,              \
+                         uint8_t *blk1, ptrdiff_t stride, int h)        \
+{                                                                       \
+    __asm__ volatile (                                                  \
+        "pxor %%mm7, %%mm7     \n\t"                                    \
+        "pxor %%mm6, %%mm6     \n\t"                                    \
+        :);                                                             \
+                                                                        \
+    sad8_1_ ## suf(blk1,     blk2,     stride, h);                      \
+    sad8_1_ ## suf(blk1 + 8, blk2 + 8, stride, h);                      \
+                                                                        \
+    return sum_ ## suf();                                               \
+}                                                                       \
+                                                                        \
+static int sad16_x2_ ## suf(MpegEncContext *v, uint8_t *blk2,           \
+                            uint8_t *blk1, ptrdiff_t stride, int h)     \
+{                                                                       \
+    __asm__ volatile (                                                  \
+        "pxor %%mm7, %%mm7     \n\t"                                    \
+        "pxor %%mm6, %%mm6     \n\t"                                    \
+        "movq %0, %%mm5        \n\t"                                    \
+        :: "m" (round_tab[1]));                                         \
+                                                                        \
+    sad8_x2a_ ## suf(blk1,     blk2,     stride, h);                    \
+    sad8_x2a_ ## suf(blk1 + 8, blk2 + 8, stride, h);                    \
+                                                                        \
+    return sum_ ## suf();                                               \
+}                                                                       \
+                                                                        \
+static int sad16_y2_ ## suf(MpegEncContext *v, uint8_t *blk2,           \
+                            uint8_t *blk1, ptrdiff_t stride, int h)     \
+{                                                                       \
+    __asm__ volatile (                                                  \
+        "pxor %%mm7, %%mm7     \n\t"                                    \
+        "pxor %%mm6, %%mm6     \n\t"                                    \
+        "movq %0, %%mm5        \n\t"                                    \
+        :: "m" (round_tab[1]));                                         \
+                                                                        \
+    sad8_y2a_ ## suf(blk1,     blk2,     stride, h);                    \
+    sad8_y2a_ ## suf(blk1 + 8, blk2 + 8, stride, h);                    \
+                                                                        \
+    return sum_ ## suf();                                               \
+}                                                                       \
+                                                                        \
+static int sad16_xy2_ ## suf(MpegEncContext *v, uint8_t *blk2,          \
+                             uint8_t *blk1, ptrdiff_t stride, int h)    \
+{                                                                       \
+    __asm__ volatile (                                                  \
+        "pxor %%mm7, %%mm7     \n\t"                                    \
+        "pxor %%mm6, %%mm6     \n\t"                                    \
+        ::);                                                            \
+                                                                        \
+    sad8_4_ ## suf(blk1,     blk2,     stride, h);                      \
+    sad8_4_ ## suf(blk1 + 8, blk2 + 8, stride, h);                      \
+                                                                        \
+    return sum_ ## suf();                                               \
+}                                                                       \
+
+PIX_SAD(mmx)
+
+#endif /* HAVE_INLINE_ASM */
+
+av_cold void ff_me_cmp_init_x86(MECmpContext *c, AVCodecContext *avctx)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+#if HAVE_INLINE_ASM
+    if (INLINE_MMX(cpu_flags)) {
+        c->pix_abs[0][0] = sad16_mmx;
+        c->pix_abs[0][1] = sad16_x2_mmx;
+        c->pix_abs[0][2] = sad16_y2_mmx;
+        c->pix_abs[0][3] = sad16_xy2_mmx;
+        c->pix_abs[1][0] = sad8_mmx;
+        c->pix_abs[1][1] = sad8_x2_mmx;
+        c->pix_abs[1][2] = sad8_y2_mmx;
+        c->pix_abs[1][3] = sad8_xy2_mmx;
+
+        c->sad[0] = sad16_mmx;
+        c->sad[1] = sad8_mmx;
+
+        c->vsad[4] = vsad_intra16_mmx;
+
+        if (!(avctx->flags & AV_CODEC_FLAG_BITEXACT)) {
+            c->vsad[0] = vsad16_mmx;
+        }
+    }
+
+#endif /* HAVE_INLINE_ASM */
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->hadamard8_diff[0] = ff_hadamard8_diff16_mmx;
+        c->hadamard8_diff[1] = ff_hadamard8_diff_mmx;
+        c->sum_abs_dctelem   = ff_sum_abs_dctelem_mmx;
+        c->sse[0]            = ff_sse16_mmx;
+        c->sse[1]            = ff_sse8_mmx;
+#if HAVE_X86ASM
+        c->nsse[0]           = nsse16_mmx;
+        c->nsse[1]           = nsse8_mmx;
+#endif
+    }
+
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        c->hadamard8_diff[0] = ff_hadamard8_diff16_mmxext;
+        c->hadamard8_diff[1] = ff_hadamard8_diff_mmxext;
+        c->sum_abs_dctelem   = ff_sum_abs_dctelem_mmxext;
+
+        c->sad[0] = ff_sad16_mmxext;
+        c->sad[1] = ff_sad8_mmxext;
+
+        c->pix_abs[0][0] = ff_sad16_mmxext;
+        c->pix_abs[0][1] = ff_sad16_x2_mmxext;
+        c->pix_abs[0][2] = ff_sad16_y2_mmxext;
+        c->pix_abs[1][0] = ff_sad8_mmxext;
+        c->pix_abs[1][1] = ff_sad8_x2_mmxext;
+        c->pix_abs[1][2] = ff_sad8_y2_mmxext;
+
+        c->vsad[4] = ff_vsad_intra16_mmxext;
+        c->vsad[5] = ff_vsad_intra8_mmxext;
+
+        if (!(avctx->flags & AV_CODEC_FLAG_BITEXACT)) {
+            c->pix_abs[0][3] = ff_sad16_approx_xy2_mmxext;
+            c->pix_abs[1][3] = ff_sad8_approx_xy2_mmxext;
+
+            c->vsad[0] = ff_vsad16_approx_mmxext;
+            c->vsad[1] = ff_vsad8_approx_mmxext;
+        }
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->sse[0] = ff_sse16_sse2;
+        c->sum_abs_dctelem   = ff_sum_abs_dctelem_sse2;
+
+#if HAVE_ALIGNED_STACK
+        c->hadamard8_diff[0] = ff_hadamard8_diff16_sse2;
+        c->hadamard8_diff[1] = ff_hadamard8_diff_sse2;
+#endif
+        if (!(cpu_flags & AV_CPU_FLAG_SSE2SLOW) && avctx->codec_id != AV_CODEC_ID_SNOW) {
+            c->sad[0]        = ff_sad16_sse2;
+            c->pix_abs[0][0] = ff_sad16_sse2;
+            c->pix_abs[0][1] = ff_sad16_x2_sse2;
+            c->pix_abs[0][2] = ff_sad16_y2_sse2;
+
+            c->vsad[4]       = ff_vsad_intra16_sse2;
+            if (!(avctx->flags & AV_CODEC_FLAG_BITEXACT)) {
+                c->pix_abs[0][3] = ff_sad16_approx_xy2_sse2;
+                c->vsad[0]       = ff_vsad16_approx_sse2;
+            }
+        }
+    }
+
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        c->sum_abs_dctelem   = ff_sum_abs_dctelem_ssse3;
+#if HAVE_ALIGNED_STACK
+        c->hadamard8_diff[0] = ff_hadamard8_diff16_ssse3;
+        c->hadamard8_diff[1] = ff_hadamard8_diff_ssse3;
+#endif
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mlpdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mlpdsp_init.c
new file mode 100644
index 000000000..cb90ca24f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mlpdsp_init.c
@@ -0,0 +1,204 @@
+/*
+ * MLP DSP functions x86-optimized
+ * Copyright (c) 2009 Ramiro Polla
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/mlpdsp.h"
+#include "libavcodec/mlp.h"
+
+#define REMATRIX_CHANNEL_FUNC(opt) \
+void ff_mlp_rematrix_channel_##opt(int32_t *samples, \
+                                   const int32_t *coeffs, \
+                                   const uint8_t *bypassed_lsbs, \
+                                   const int8_t *noise_buffer, \
+                                   int index, \
+                                   unsigned int dest_ch, \
+                                   uint16_t blockpos, \
+                                   unsigned int maxchan, \
+                                   int matrix_noise_shift, \
+                                   int access_unit_size_pow2, \
+                                   int32_t mask);
+
+REMATRIX_CHANNEL_FUNC(sse4)
+REMATRIX_CHANNEL_FUNC(avx2_bmi2)
+
+#if HAVE_7REGS && HAVE_INLINE_ASM && HAVE_INLINE_ASM_NONLOCAL_LABELS
+
+extern char ff_mlp_firorder_8;
+extern char ff_mlp_firorder_7;
+extern char ff_mlp_firorder_6;
+extern char ff_mlp_firorder_5;
+extern char ff_mlp_firorder_4;
+extern char ff_mlp_firorder_3;
+extern char ff_mlp_firorder_2;
+extern char ff_mlp_firorder_1;
+extern char ff_mlp_firorder_0;
+
+extern char ff_mlp_iirorder_4;
+extern char ff_mlp_iirorder_3;
+extern char ff_mlp_iirorder_2;
+extern char ff_mlp_iirorder_1;
+extern char ff_mlp_iirorder_0;
+
+static const void * const firtable[9] = { &ff_mlp_firorder_0, &ff_mlp_firorder_1,
+                                          &ff_mlp_firorder_2, &ff_mlp_firorder_3,
+                                          &ff_mlp_firorder_4, &ff_mlp_firorder_5,
+                                          &ff_mlp_firorder_6, &ff_mlp_firorder_7,
+                                          &ff_mlp_firorder_8 };
+static const void * const iirtable[5] = { &ff_mlp_iirorder_0, &ff_mlp_iirorder_1,
+                                          &ff_mlp_iirorder_2, &ff_mlp_iirorder_3,
+                                          &ff_mlp_iirorder_4 };
+
+#if ARCH_X86_64
+
+#define MLPMUL(label, offset, offs, offc)   \
+    LABEL_MANGLE(label)":             \n\t" \
+    "movslq "offset"+"offs"(%0), %%rax\n\t" \
+    "movslq "offset"+"offc"(%1), %%rdx\n\t" \
+    "imul                 %%rdx, %%rax\n\t" \
+    "add                  %%rax, %%rsi\n\t"
+
+#define FIRMULREG(label, offset, firc)\
+    LABEL_MANGLE(label)":       \n\t" \
+    "movslq "#offset"(%0), %%rax\n\t" \
+    "imul        %"#firc", %%rax\n\t" \
+    "add            %%rax, %%rsi\n\t"
+
+#define CLEAR_ACCUM                   \
+    "xor            %%rsi, %%rsi\n\t"
+
+#define SHIFT_ACCUM                   \
+    "shr     %%cl,         %%rsi\n\t"
+
+#define ACCUM    "%%rdx"
+#define RESULT   "%%rsi"
+#define RESULT32 "%%esi"
+
+#else /* if ARCH_X86_32 */
+
+#define MLPMUL(label, offset, offs, offc)  \
+    LABEL_MANGLE(label)":            \n\t" \
+    "mov   "offset"+"offs"(%0), %%eax\n\t" \
+    "imull "offset"+"offc"(%1)       \n\t" \
+    "add                %%eax , %%esi\n\t" \
+    "adc                %%edx , %%ecx\n\t"
+
+#define FIRMULREG(label, offset, firc)  \
+    MLPMUL(label, #offset, "0", "0")
+
+#define CLEAR_ACCUM                  \
+    "xor           %%esi, %%esi\n\t" \
+    "xor           %%ecx, %%ecx\n\t"
+
+#define SHIFT_ACCUM                  \
+    "mov           %%ecx, %%edx\n\t" \
+    "mov           %%esi, %%eax\n\t" \
+    "movzbl        %7   , %%ecx\n\t" \
+    "shrd    %%cl, %%edx, %%eax\n\t" \
+
+#define ACCUM    "%%edx"
+#define RESULT   "%%eax"
+#define RESULT32 "%%eax"
+
+#endif /* !ARCH_X86_64 */
+
+#define BINC  AV_STRINGIFY(4* MAX_CHANNELS)
+#define IOFFS AV_STRINGIFY(4*(MAX_FIR_ORDER + MAX_BLOCKSIZE))
+#define IOFFC AV_STRINGIFY(4* MAX_FIR_ORDER)
+
+#define FIRMUL(label, offset) MLPMUL(label, #offset,   "0",   "0")
+#define IIRMUL(label, offset) MLPMUL(label, #offset, IOFFS, IOFFC)
+
+static void mlp_filter_channel_x86(int32_t *state, const int32_t *coeff,
+                                   int firorder, int iirorder,
+                                   unsigned int filter_shift, int32_t mask,
+                                   int blocksize, int32_t *sample_buffer)
+{
+    const void *firjump = firtable[firorder];
+    const void *iirjump = iirtable[iirorder];
+
+    blocksize = -blocksize;
+
+    __asm__ volatile(
+        "1:                           \n\t"
+        CLEAR_ACCUM
+        "jmp  *%5                     \n\t"
+        FIRMUL   (ff_mlp_firorder_8, 0x1c   )
+        FIRMUL   (ff_mlp_firorder_7, 0x18   )
+        FIRMUL   (ff_mlp_firorder_6, 0x14   )
+        FIRMUL   (ff_mlp_firorder_5, 0x10   )
+        FIRMUL   (ff_mlp_firorder_4, 0x0c   )
+        FIRMUL   (ff_mlp_firorder_3, 0x08   )
+        FIRMUL   (ff_mlp_firorder_2, 0x04   )
+        FIRMULREG(ff_mlp_firorder_1, 0x00, 8)
+        LABEL_MANGLE(ff_mlp_firorder_0)":\n\t"
+        "jmp  *%6                     \n\t"
+        IIRMUL   (ff_mlp_iirorder_4, 0x0c   )
+        IIRMUL   (ff_mlp_iirorder_3, 0x08   )
+        IIRMUL   (ff_mlp_iirorder_2, 0x04   )
+        IIRMUL   (ff_mlp_iirorder_1, 0x00   )
+        LABEL_MANGLE(ff_mlp_iirorder_0)":\n\t"
+        SHIFT_ACCUM
+        "mov  "RESULT"  ,"ACCUM"      \n\t"
+        "add  (%2)      ,"RESULT"     \n\t"
+        "and   %4       ,"RESULT"     \n\t"
+        "sub   $4       ,  %0         \n\t"
+        "mov  "RESULT32", (%0)        \n\t"
+        "mov  "RESULT32", (%2)        \n\t"
+        "add $"BINC"    ,  %2         \n\t"
+        "sub  "ACCUM"   ,"RESULT"     \n\t"
+        "mov  "RESULT32","IOFFS"(%0)  \n\t"
+        "incl              %3         \n\t"
+        "js 1b                        \n\t"
+        : /* 0*/"+r"(state),
+          /* 1*/"+r"(coeff),
+          /* 2*/"+r"(sample_buffer),
+#if ARCH_X86_64
+          /* 3*/"+r"(blocksize)
+        : /* 4*/"r"((x86_reg)mask), /* 5*/"r"(firjump),
+          /* 6*/"r"(iirjump)      , /* 7*/"c"(filter_shift)
+        , /* 8*/"r"((int64_t)coeff[0])
+        : "rax", "rdx", "rsi"
+#else /* ARCH_X86_32 */
+          /* 3*/"+m"(blocksize)
+        : /* 4*/"m"(         mask), /* 5*/"m"(firjump),
+          /* 6*/"m"(iirjump)      , /* 7*/"m"(filter_shift)
+        : "eax", "edx", "esi", "ecx"
+#endif /* !ARCH_X86_64 */
+    );
+}
+
+#endif /* HAVE_7REGS && HAVE_INLINE_ASM */
+
+av_cold void ff_mlpdsp_init_x86(MLPDSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+#if HAVE_7REGS && HAVE_INLINE_ASM && HAVE_INLINE_ASM_NONLOCAL_LABELS
+    if (INLINE_MMX(cpu_flags))
+        c->mlp_filter_channel = mlp_filter_channel_x86;
+#endif
+    if (ARCH_X86_64 && EXTERNAL_SSE4(cpu_flags))
+        c->mlp_rematrix_channel = ff_mlp_rematrix_channel_sse4;
+    if (ARCH_X86_64 && EXTERNAL_AVX2_FAST(cpu_flags) && cpu_flags & AV_CPU_FLAG_BMI2)
+        c->mlp_rematrix_channel = ff_mlp_rematrix_channel_avx2_bmi2;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegaudiodsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegaudiodsp.c
new file mode 100644
index 000000000..f46a5c4f3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegaudiodsp.c
@@ -0,0 +1,289 @@
+/*
+ * SIMD-optimized MP3 decoding functions
+ * Copyright (c) 2010 Vitor Sessak
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/internal.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/mpegaudiodsp.h"
+
+#define DECL(CPU)\
+static void imdct36_blocks_ ## CPU(float *out, float *buf, float *in, int count, int switch_point, int block_type);\
+void ff_imdct36_float_ ## CPU(float *out, float *buf, float *in, float *win);
+
+#if HAVE_X86ASM
+#if ARCH_X86_32
+DECL(sse)
+#endif
+DECL(sse2)
+DECL(sse3)
+DECL(ssse3)
+DECL(avx)
+#endif /* HAVE_X86ASM */
+
+void ff_four_imdct36_float_sse(float *out, float *buf, float *in, float *win,
+                               float *tmpbuf);
+void ff_four_imdct36_float_avx(float *out, float *buf, float *in, float *win,
+                               float *tmpbuf);
+
+DECLARE_ALIGNED(16, static float, mdct_win_sse)[2][4][4*40];
+
+#if HAVE_6REGS && HAVE_SSE_INLINE
+
+#define MACS(rt, ra, rb) rt+=(ra)*(rb)
+#define MLSS(rt, ra, rb) rt-=(ra)*(rb)
+
+#define SUM8(op, sum, w, p)               \
+{                                         \
+    op(sum, (w)[0 * 64], (p)[0 * 64]);    \
+    op(sum, (w)[1 * 64], (p)[1 * 64]);    \
+    op(sum, (w)[2 * 64], (p)[2 * 64]);    \
+    op(sum, (w)[3 * 64], (p)[3 * 64]);    \
+    op(sum, (w)[4 * 64], (p)[4 * 64]);    \
+    op(sum, (w)[5 * 64], (p)[5 * 64]);    \
+    op(sum, (w)[6 * 64], (p)[6 * 64]);    \
+    op(sum, (w)[7 * 64], (p)[7 * 64]);    \
+}
+
+static void apply_window(const float *buf, const float *win1,
+                         const float *win2, float *sum1, float *sum2, int len)
+{
+    x86_reg count = - 4*len;
+    const float *win1a = win1+len;
+    const float *win2a = win2+len;
+    const float *bufa  = buf+len;
+    float *sum1a = sum1+len;
+    float *sum2a = sum2+len;
+
+
+#define MULT(a, b)                                 \
+    "movaps " #a "(%1,%0), %%xmm1           \n\t"  \
+    "movaps " #a "(%3,%0), %%xmm2           \n\t"  \
+    "mulps         %%xmm2, %%xmm1           \n\t"  \
+    "subps         %%xmm1, %%xmm0           \n\t"  \
+    "mulps  " #b "(%2,%0), %%xmm2           \n\t"  \
+    "subps         %%xmm2, %%xmm4           \n\t"  \
+
+    __asm__ volatile(
+            "1:                                   \n\t"
+            "xorps       %%xmm0, %%xmm0           \n\t"
+            "xorps       %%xmm4, %%xmm4           \n\t"
+
+            MULT(   0,   0)
+            MULT( 256,  64)
+            MULT( 512, 128)
+            MULT( 768, 192)
+            MULT(1024, 256)
+            MULT(1280, 320)
+            MULT(1536, 384)
+            MULT(1792, 448)
+
+            "movaps      %%xmm0, (%4,%0)          \n\t"
+            "movaps      %%xmm4, (%5,%0)          \n\t"
+            "add            $16,  %0              \n\t"
+            "jl              1b                   \n\t"
+            :"+&r"(count)
+            :"r"(win1a), "r"(win2a), "r"(bufa), "r"(sum1a), "r"(sum2a)
+            );
+
+#undef MULT
+}
+
+static void apply_window_mp3(float *in, float *win, int *unused, float *out,
+                             ptrdiff_t incr)
+{
+    LOCAL_ALIGNED_16(float, suma, [17]);
+    LOCAL_ALIGNED_16(float, sumb, [17]);
+    LOCAL_ALIGNED_16(float, sumc, [17]);
+    LOCAL_ALIGNED_16(float, sumd, [17]);
+
+    float sum;
+
+    /* copy to avoid wrap */
+    __asm__ volatile(
+            "movaps    0(%0), %%xmm0   \n\t" \
+            "movaps   16(%0), %%xmm1   \n\t" \
+            "movaps   32(%0), %%xmm2   \n\t" \
+            "movaps   48(%0), %%xmm3   \n\t" \
+            "movaps   %%xmm0,   0(%1) \n\t" \
+            "movaps   %%xmm1,  16(%1) \n\t" \
+            "movaps   %%xmm2,  32(%1) \n\t" \
+            "movaps   %%xmm3,  48(%1) \n\t" \
+            "movaps   64(%0), %%xmm0   \n\t" \
+            "movaps   80(%0), %%xmm1   \n\t" \
+            "movaps   96(%0), %%xmm2   \n\t" \
+            "movaps  112(%0), %%xmm3   \n\t" \
+            "movaps   %%xmm0,  64(%1) \n\t" \
+            "movaps   %%xmm1,  80(%1) \n\t" \
+            "movaps   %%xmm2,  96(%1) \n\t" \
+            "movaps   %%xmm3, 112(%1) \n\t"
+            ::"r"(in), "r"(in+512)
+            :"memory"
+            );
+
+    apply_window(in + 16, win     , win + 512, suma, sumc, 16);
+    apply_window(in + 32, win + 48, win + 640, sumb, sumd, 16);
+
+    SUM8(MACS, suma[0], win + 32, in + 48);
+
+    sumc[ 0] = 0;
+    sumb[16] = 0;
+    sumd[16] = 0;
+
+#define SUMS(suma, sumb, sumc, sumd, out1, out2)               \
+            "movups " #sumd "(%4),       %%xmm0          \n\t" \
+            "shufps         $0x1b,       %%xmm0, %%xmm0  \n\t" \
+            "subps  " #suma "(%1),       %%xmm0          \n\t" \
+            "movaps        %%xmm0," #out1 "(%0)          \n\t" \
+\
+            "movups " #sumc "(%3),       %%xmm0          \n\t" \
+            "shufps         $0x1b,       %%xmm0, %%xmm0  \n\t" \
+            "addps  " #sumb "(%2),       %%xmm0          \n\t" \
+            "movaps        %%xmm0," #out2 "(%0)          \n\t"
+
+    if (incr == 1) {
+        __asm__ volatile(
+            SUMS( 0, 48,  4, 52,  0, 112)
+            SUMS(16, 32, 20, 36, 16,  96)
+            SUMS(32, 16, 36, 20, 32,  80)
+            SUMS(48,  0, 52,  4, 48,  64)
+
+            :"+&r"(out)
+            :"r"(&suma[0]), "r"(&sumb[0]), "r"(&sumc[0]), "r"(&sumd[0])
+            :"memory"
+            );
+        out += 16*incr;
+    } else {
+        int j;
+        float *out2 = out + 32 * incr;
+        out[0  ]  = -suma[   0];
+        out += incr;
+        out2 -= incr;
+        for(j=1;j<16;j++) {
+            *out  = -suma[   j] + sumd[16-j];
+            *out2 =  sumb[16-j] + sumc[   j];
+            out  += incr;
+            out2 -= incr;
+        }
+    }
+
+    sum = 0;
+    SUM8(MLSS, sum, win + 16 + 32, in + 32);
+    *out = sum;
+}
+
+#endif /* HAVE_6REGS && HAVE_SSE_INLINE */
+
+#if HAVE_X86ASM
+#define DECL_IMDCT_BLOCKS(CPU1, CPU2)                                       \
+static void imdct36_blocks_ ## CPU1(float *out, float *buf, float *in,      \
+                               int count, int switch_point, int block_type) \
+{                                                                           \
+    int align_end = count - (count & 3);                                \
+    int j;                                                              \
+    for (j = 0; j < align_end; j+= 4) {                                 \
+        LOCAL_ALIGNED_16(float, tmpbuf, [1024]);                        \
+        float *win = mdct_win_sse[switch_point && j < 4][block_type];   \
+        /* apply window & overlap with previous buffer */               \
+                                                                        \
+        /* select window */                                             \
+        ff_four_imdct36_float_ ## CPU2(out, buf, in, win, tmpbuf);      \
+        in      += 4*18;                                                \
+        buf     += 4*18;                                                \
+        out     += 4;                                                   \
+    }                                                                   \
+    for (; j < count; j++) {                                            \
+        /* apply window & overlap with previous buffer */               \
+                                                                        \
+        /* select window */                                             \
+        int win_idx = (switch_point && j < 2) ? 0 : block_type;         \
+        float *win = ff_mdct_win_float[win_idx + (4 & -(j & 1))];       \
+                                                                        \
+        ff_imdct36_float_ ## CPU1(out, buf, in, win);                   \
+                                                                        \
+        in  += 18;                                                      \
+        buf++;                                                          \
+        out++;                                                          \
+    }                                                                   \
+}
+
+#if HAVE_SSE
+#if ARCH_X86_32
+DECL_IMDCT_BLOCKS(sse,sse)
+#endif
+DECL_IMDCT_BLOCKS(sse2,sse)
+DECL_IMDCT_BLOCKS(sse3,sse)
+DECL_IMDCT_BLOCKS(ssse3,sse)
+#endif
+#if HAVE_AVX_EXTERNAL
+DECL_IMDCT_BLOCKS(avx,avx)
+#endif
+#endif /* HAVE_X86ASM */
+
+av_cold void ff_mpadsp_init_x86(MPADSPContext *s)
+{
+    av_unused int cpu_flags = av_get_cpu_flags();
+
+    int i, j;
+    for (j = 0; j < 4; j++) {
+        for (i = 0; i < 40; i ++) {
+            mdct_win_sse[0][j][4*i    ] = ff_mdct_win_float[j    ][i];
+            mdct_win_sse[0][j][4*i + 1] = ff_mdct_win_float[j + 4][i];
+            mdct_win_sse[0][j][4*i + 2] = ff_mdct_win_float[j    ][i];
+            mdct_win_sse[0][j][4*i + 3] = ff_mdct_win_float[j + 4][i];
+            mdct_win_sse[1][j][4*i    ] = ff_mdct_win_float[0    ][i];
+            mdct_win_sse[1][j][4*i + 1] = ff_mdct_win_float[4    ][i];
+            mdct_win_sse[1][j][4*i + 2] = ff_mdct_win_float[j    ][i];
+            mdct_win_sse[1][j][4*i + 3] = ff_mdct_win_float[j + 4][i];
+        }
+    }
+
+#if HAVE_6REGS && HAVE_SSE_INLINE
+    if (INLINE_SSE(cpu_flags)) {
+        s->apply_window_float = apply_window_mp3;
+    }
+#endif /* HAVE_SSE_INLINE */
+
+#if HAVE_X86ASM
+#if HAVE_SSE
+#if ARCH_X86_32
+    if (EXTERNAL_SSE(cpu_flags)) {
+        s->imdct36_blocks_float = imdct36_blocks_sse;
+    }
+#endif
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        s->imdct36_blocks_float = imdct36_blocks_sse2;
+    }
+    if (EXTERNAL_SSE3(cpu_flags)) {
+        s->imdct36_blocks_float = imdct36_blocks_sse3;
+    }
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        s->imdct36_blocks_float = imdct36_blocks_ssse3;
+    }
+#endif
+#if HAVE_AVX_EXTERNAL
+    if (EXTERNAL_AVX(cpu_flags)) {
+        s->imdct36_blocks_float = imdct36_blocks_avx;
+    }
+#endif
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideo.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideo.c
new file mode 100644
index 000000000..73967cafd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideo.c
@@ -0,0 +1,469 @@
+/*
+ * Optimized for ia32 CPUs by Nick Kurshev <nickols_k@mail.ru>
+ * H.263, MPEG-1, MPEG-2 dequantizer & draw_edges by Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/mpegvideo.h"
+#include "libavcodec/mpegvideodata.h"
+
+#if HAVE_MMX_INLINE
+
+static void dct_unquantize_h263_intra_mmx(MpegEncContext *s,
+                                  int16_t *block, int n, int qscale)
+{
+    x86_reg level, qmul, qadd, nCoeffs;
+
+    qmul = qscale << 1;
+
+    av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
+
+    if (!s->h263_aic) {
+        if (n < 4)
+            level = block[0] * s->y_dc_scale;
+        else
+            level = block[0] * s->c_dc_scale;
+        qadd = (qscale - 1) | 1;
+    }else{
+        qadd = 0;
+        level= block[0];
+    }
+    if(s->ac_pred)
+        nCoeffs=63;
+    else
+        nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
+
+__asm__ volatile(
+                "movd %1, %%mm6                 \n\t" //qmul
+                "packssdw %%mm6, %%mm6          \n\t"
+                "packssdw %%mm6, %%mm6          \n\t"
+                "movd %2, %%mm5                 \n\t" //qadd
+                "pxor %%mm7, %%mm7              \n\t"
+                "packssdw %%mm5, %%mm5          \n\t"
+                "packssdw %%mm5, %%mm5          \n\t"
+                "psubw %%mm5, %%mm7             \n\t"
+                "pxor %%mm4, %%mm4              \n\t"
+                ".p2align 4                     \n\t"
+                "1:                             \n\t"
+                "movq (%0, %3), %%mm0           \n\t"
+                "movq 8(%0, %3), %%mm1          \n\t"
+
+                "pmullw %%mm6, %%mm0            \n\t"
+                "pmullw %%mm6, %%mm1            \n\t"
+
+                "movq (%0, %3), %%mm2           \n\t"
+                "movq 8(%0, %3), %%mm3          \n\t"
+
+                "pcmpgtw %%mm4, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
+                "pcmpgtw %%mm4, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
+
+                "pxor %%mm2, %%mm0              \n\t"
+                "pxor %%mm3, %%mm1              \n\t"
+
+                "paddw %%mm7, %%mm0             \n\t"
+                "paddw %%mm7, %%mm1             \n\t"
+
+                "pxor %%mm0, %%mm2              \n\t"
+                "pxor %%mm1, %%mm3              \n\t"
+
+                "pcmpeqw %%mm7, %%mm0           \n\t" // block[i] == 0 ? -1 : 0
+                "pcmpeqw %%mm7, %%mm1           \n\t" // block[i] == 0 ? -1 : 0
+
+                "pandn %%mm2, %%mm0             \n\t"
+                "pandn %%mm3, %%mm1             \n\t"
+
+                "movq %%mm0, (%0, %3)           \n\t"
+                "movq %%mm1, 8(%0, %3)          \n\t"
+
+                "add $16, %3                    \n\t"
+                "jng 1b                         \n\t"
+                ::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs))
+                : "memory"
+        );
+        block[0]= level;
+}
+
+
+static void dct_unquantize_h263_inter_mmx(MpegEncContext *s,
+                                  int16_t *block, int n, int qscale)
+{
+    x86_reg qmul, qadd, nCoeffs;
+
+    qmul = qscale << 1;
+    qadd = (qscale - 1) | 1;
+
+    av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
+
+    nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
+
+__asm__ volatile(
+                "movd %1, %%mm6                 \n\t" //qmul
+                "packssdw %%mm6, %%mm6          \n\t"
+                "packssdw %%mm6, %%mm6          \n\t"
+                "movd %2, %%mm5                 \n\t" //qadd
+                "pxor %%mm7, %%mm7              \n\t"
+                "packssdw %%mm5, %%mm5          \n\t"
+                "packssdw %%mm5, %%mm5          \n\t"
+                "psubw %%mm5, %%mm7             \n\t"
+                "pxor %%mm4, %%mm4              \n\t"
+                ".p2align 4                     \n\t"
+                "1:                             \n\t"
+                "movq (%0, %3), %%mm0           \n\t"
+                "movq 8(%0, %3), %%mm1          \n\t"
+
+                "pmullw %%mm6, %%mm0            \n\t"
+                "pmullw %%mm6, %%mm1            \n\t"
+
+                "movq (%0, %3), %%mm2           \n\t"
+                "movq 8(%0, %3), %%mm3          \n\t"
+
+                "pcmpgtw %%mm4, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
+                "pcmpgtw %%mm4, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
+
+                "pxor %%mm2, %%mm0              \n\t"
+                "pxor %%mm3, %%mm1              \n\t"
+
+                "paddw %%mm7, %%mm0             \n\t"
+                "paddw %%mm7, %%mm1             \n\t"
+
+                "pxor %%mm0, %%mm2              \n\t"
+                "pxor %%mm1, %%mm3              \n\t"
+
+                "pcmpeqw %%mm7, %%mm0           \n\t" // block[i] == 0 ? -1 : 0
+                "pcmpeqw %%mm7, %%mm1           \n\t" // block[i] == 0 ? -1 : 0
+
+                "pandn %%mm2, %%mm0             \n\t"
+                "pandn %%mm3, %%mm1             \n\t"
+
+                "movq %%mm0, (%0, %3)           \n\t"
+                "movq %%mm1, 8(%0, %3)          \n\t"
+
+                "add $16, %3                    \n\t"
+                "jng 1b                         \n\t"
+                ::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs))
+                : "memory"
+        );
+}
+
+static void dct_unquantize_mpeg1_intra_mmx(MpegEncContext *s,
+                                     int16_t *block, int n, int qscale)
+{
+    x86_reg nCoeffs;
+    const uint16_t *quant_matrix;
+    int block0;
+
+    av_assert2(s->block_last_index[n]>=0);
+
+    nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;
+
+    if (n < 4)
+        block0 = block[0] * s->y_dc_scale;
+    else
+        block0 = block[0] * s->c_dc_scale;
+    /* XXX: only MPEG-1 */
+    quant_matrix = s->intra_matrix;
+__asm__ volatile(
+                "pcmpeqw %%mm7, %%mm7           \n\t"
+                "psrlw $15, %%mm7               \n\t"
+                "movd %2, %%mm6                 \n\t"
+                "packssdw %%mm6, %%mm6          \n\t"
+                "packssdw %%mm6, %%mm6          \n\t"
+                "mov %3, %%"FF_REG_a"           \n\t"
+                ".p2align 4                     \n\t"
+                "1:                             \n\t"
+                "movq (%0, %%"FF_REG_a"), %%mm0 \n\t"
+                "movq 8(%0, %%"FF_REG_a"), %%mm1\n\t"
+                "movq (%1, %%"FF_REG_a"), %%mm4 \n\t"
+                "movq 8(%1, %%"FF_REG_a"), %%mm5\n\t"
+                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
+                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
+                "pxor %%mm2, %%mm2              \n\t"
+                "pxor %%mm3, %%mm3              \n\t"
+                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
+                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
+                "pxor %%mm2, %%mm0              \n\t"
+                "pxor %%mm3, %%mm1              \n\t"
+                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
+                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
+                "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*q
+                "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*q
+                "pxor %%mm4, %%mm4              \n\t"
+                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
+                "pcmpeqw (%0, %%"FF_REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
+                "pcmpeqw 8(%0, %%"FF_REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
+                "psraw $3, %%mm0                \n\t"
+                "psraw $3, %%mm1                \n\t"
+                "psubw %%mm7, %%mm0             \n\t"
+                "psubw %%mm7, %%mm1             \n\t"
+                "por %%mm7, %%mm0               \n\t"
+                "por %%mm7, %%mm1               \n\t"
+                "pxor %%mm2, %%mm0              \n\t"
+                "pxor %%mm3, %%mm1              \n\t"
+                "psubw %%mm2, %%mm0             \n\t"
+                "psubw %%mm3, %%mm1             \n\t"
+                "pandn %%mm0, %%mm4             \n\t"
+                "pandn %%mm1, %%mm5             \n\t"
+                "movq %%mm4, (%0, %%"FF_REG_a") \n\t"
+                "movq %%mm5, 8(%0, %%"FF_REG_a")\n\t"
+
+                "add $16, %%"FF_REG_a"          \n\t"
+                "js 1b                          \n\t"
+                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs)
+                : "%"FF_REG_a, "memory"
+        );
+    block[0]= block0;
+}
+
+static void dct_unquantize_mpeg1_inter_mmx(MpegEncContext *s,
+                                     int16_t *block, int n, int qscale)
+{
+    x86_reg nCoeffs;
+    const uint16_t *quant_matrix;
+
+    av_assert2(s->block_last_index[n]>=0);
+
+    nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;
+
+        quant_matrix = s->inter_matrix;
+__asm__ volatile(
+                "pcmpeqw %%mm7, %%mm7           \n\t"
+                "psrlw $15, %%mm7               \n\t"
+                "movd %2, %%mm6                 \n\t"
+                "packssdw %%mm6, %%mm6          \n\t"
+                "packssdw %%mm6, %%mm6          \n\t"
+                "mov %3, %%"FF_REG_a"           \n\t"
+                ".p2align 4                     \n\t"
+                "1:                             \n\t"
+                "movq (%0, %%"FF_REG_a"), %%mm0 \n\t"
+                "movq 8(%0, %%"FF_REG_a"), %%mm1\n\t"
+                "movq (%1, %%"FF_REG_a"), %%mm4 \n\t"
+                "movq 8(%1, %%"FF_REG_a"), %%mm5\n\t"
+                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
+                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
+                "pxor %%mm2, %%mm2              \n\t"
+                "pxor %%mm3, %%mm3              \n\t"
+                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
+                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
+                "pxor %%mm2, %%mm0              \n\t"
+                "pxor %%mm3, %%mm1              \n\t"
+                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
+                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
+                "paddw %%mm0, %%mm0             \n\t" // abs(block[i])*2
+                "paddw %%mm1, %%mm1             \n\t" // abs(block[i])*2
+                "paddw %%mm7, %%mm0             \n\t" // abs(block[i])*2 + 1
+                "paddw %%mm7, %%mm1             \n\t" // abs(block[i])*2 + 1
+                "pmullw %%mm4, %%mm0            \n\t" // (abs(block[i])*2 + 1)*q
+                "pmullw %%mm5, %%mm1            \n\t" // (abs(block[i])*2 + 1)*q
+                "pxor %%mm4, %%mm4              \n\t"
+                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
+                "pcmpeqw (%0, %%"FF_REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
+                "pcmpeqw 8(%0, %%"FF_REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
+                "psraw $4, %%mm0                \n\t"
+                "psraw $4, %%mm1                \n\t"
+                "psubw %%mm7, %%mm0             \n\t"
+                "psubw %%mm7, %%mm1             \n\t"
+                "por %%mm7, %%mm0               \n\t"
+                "por %%mm7, %%mm1               \n\t"
+                "pxor %%mm2, %%mm0              \n\t"
+                "pxor %%mm3, %%mm1              \n\t"
+                "psubw %%mm2, %%mm0             \n\t"
+                "psubw %%mm3, %%mm1             \n\t"
+                "pandn %%mm0, %%mm4             \n\t"
+                "pandn %%mm1, %%mm5             \n\t"
+                "movq %%mm4, (%0, %%"FF_REG_a") \n\t"
+                "movq %%mm5, 8(%0, %%"FF_REG_a")\n\t"
+
+                "add $16, %%"FF_REG_a"          \n\t"
+                "js 1b                          \n\t"
+                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs)
+                : "%"FF_REG_a, "memory"
+        );
+}
+
+static void dct_unquantize_mpeg2_intra_mmx(MpegEncContext *s,
+                                     int16_t *block, int n, int qscale)
+{
+    x86_reg nCoeffs;
+    const uint16_t *quant_matrix;
+    int block0;
+
+    av_assert2(s->block_last_index[n]>=0);
+
+    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
+    else                 qscale <<= 1;
+
+    if(s->alternate_scan) nCoeffs= 63; //FIXME
+    else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
+
+    if (n < 4)
+        block0 = block[0] * s->y_dc_scale;
+    else
+        block0 = block[0] * s->c_dc_scale;
+    quant_matrix = s->intra_matrix;
+__asm__ volatile(
+                "pcmpeqw %%mm7, %%mm7           \n\t"
+                "psrlw $15, %%mm7               \n\t"
+                "movd %2, %%mm6                 \n\t"
+                "packssdw %%mm6, %%mm6          \n\t"
+                "packssdw %%mm6, %%mm6          \n\t"
+                "mov %3, %%"FF_REG_a"           \n\t"
+                ".p2align 4                     \n\t"
+                "1:                             \n\t"
+                "movq (%0, %%"FF_REG_a"), %%mm0 \n\t"
+                "movq 8(%0, %%"FF_REG_a"), %%mm1\n\t"
+                "movq (%1, %%"FF_REG_a"), %%mm4 \n\t"
+                "movq 8(%1, %%"FF_REG_a"), %%mm5\n\t"
+                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
+                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
+                "pxor %%mm2, %%mm2              \n\t"
+                "pxor %%mm3, %%mm3              \n\t"
+                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
+                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
+                "pxor %%mm2, %%mm0              \n\t"
+                "pxor %%mm3, %%mm1              \n\t"
+                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
+                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
+                "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*q
+                "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*q
+                "pxor %%mm4, %%mm4              \n\t"
+                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
+                "pcmpeqw (%0, %%"FF_REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
+                "pcmpeqw 8(%0, %%"FF_REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
+                "psraw $4, %%mm0                \n\t"
+                "psraw $4, %%mm1                \n\t"
+                "pxor %%mm2, %%mm0              \n\t"
+                "pxor %%mm3, %%mm1              \n\t"
+                "psubw %%mm2, %%mm0             \n\t"
+                "psubw %%mm3, %%mm1             \n\t"
+                "pandn %%mm0, %%mm4             \n\t"
+                "pandn %%mm1, %%mm5             \n\t"
+                "movq %%mm4, (%0, %%"FF_REG_a") \n\t"
+                "movq %%mm5, 8(%0, %%"FF_REG_a")\n\t"
+
+                "add $16, %%"FF_REG_a"          \n\t"
+                "jng 1b                         \n\t"
+                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs)
+                : "%"FF_REG_a, "memory"
+        );
+    block[0]= block0;
+        //Note, we do not do mismatch control for intra as errors cannot accumulate
+}
+
+static void dct_unquantize_mpeg2_inter_mmx(MpegEncContext *s,
+                                     int16_t *block, int n, int qscale)
+{
+    x86_reg nCoeffs;
+    const uint16_t *quant_matrix;
+
+    av_assert2(s->block_last_index[n]>=0);
+
+    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
+    else                 qscale <<= 1;
+
+    if(s->alternate_scan) nCoeffs= 63; //FIXME
+    else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
+
+        quant_matrix = s->inter_matrix;
+__asm__ volatile(
+                "pcmpeqw %%mm7, %%mm7           \n\t"
+                "psrlq $48, %%mm7               \n\t"
+                "movd %2, %%mm6                 \n\t"
+                "packssdw %%mm6, %%mm6          \n\t"
+                "packssdw %%mm6, %%mm6          \n\t"
+                "mov %3, %%"FF_REG_a"           \n\t"
+                ".p2align 4                     \n\t"
+                "1:                             \n\t"
+                "movq (%0, %%"FF_REG_a"), %%mm0 \n\t"
+                "movq 8(%0, %%"FF_REG_a"), %%mm1\n\t"
+                "movq (%1, %%"FF_REG_a"), %%mm4 \n\t"
+                "movq 8(%1, %%"FF_REG_a"), %%mm5\n\t"
+                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
+                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
+                "pxor %%mm2, %%mm2              \n\t"
+                "pxor %%mm3, %%mm3              \n\t"
+                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
+                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
+                "pxor %%mm2, %%mm0              \n\t"
+                "pxor %%mm3, %%mm1              \n\t"
+                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
+                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
+                "paddw %%mm0, %%mm0             \n\t" // abs(block[i])*2
+                "paddw %%mm1, %%mm1             \n\t" // abs(block[i])*2
+                "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*2*q
+                "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*2*q
+                "paddw %%mm4, %%mm0             \n\t" // (abs(block[i])*2 + 1)*q
+                "paddw %%mm5, %%mm1             \n\t" // (abs(block[i])*2 + 1)*q
+                "pxor %%mm4, %%mm4              \n\t"
+                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
+                "pcmpeqw (%0, %%"FF_REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
+                "pcmpeqw 8(%0, %%"FF_REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
+                "psrlw $5, %%mm0                \n\t"
+                "psrlw $5, %%mm1                \n\t"
+                "pxor %%mm2, %%mm0              \n\t"
+                "pxor %%mm3, %%mm1              \n\t"
+                "psubw %%mm2, %%mm0             \n\t"
+                "psubw %%mm3, %%mm1             \n\t"
+                "pandn %%mm0, %%mm4             \n\t"
+                "pandn %%mm1, %%mm5             \n\t"
+                "pxor %%mm4, %%mm7              \n\t"
+                "pxor %%mm5, %%mm7              \n\t"
+                "movq %%mm4, (%0, %%"FF_REG_a") \n\t"
+                "movq %%mm5, 8(%0, %%"FF_REG_a")\n\t"
+
+                "add $16, %%"FF_REG_a"          \n\t"
+                "jng 1b                         \n\t"
+                "movd 124(%0, %3), %%mm0        \n\t"
+                "movq %%mm7, %%mm6              \n\t"
+                "psrlq $32, %%mm7               \n\t"
+                "pxor %%mm6, %%mm7              \n\t"
+                "movq %%mm7, %%mm6              \n\t"
+                "psrlq $16, %%mm7               \n\t"
+                "pxor %%mm6, %%mm7              \n\t"
+                "pslld $31, %%mm7               \n\t"
+                "psrlq $15, %%mm7               \n\t"
+                "pxor %%mm7, %%mm0              \n\t"
+                "movd %%mm0, 124(%0, %3)        \n\t"
+
+                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "r" (-2*nCoeffs)
+                : "%"FF_REG_a, "memory"
+        );
+}
+
+#endif /* HAVE_MMX_INLINE */
+
+av_cold void ff_mpv_common_init_x86(MpegEncContext *s)
+{
+#if HAVE_MMX_INLINE
+    int cpu_flags = av_get_cpu_flags();
+
+    if (INLINE_MMX(cpu_flags)) {
+        s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_mmx;
+        s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_mmx;
+        s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_mmx;
+        s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_mmx;
+        if (!(s->avctx->flags & AV_CODEC_FLAG_BITEXACT))
+            s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_mmx;
+        s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_mmx;
+    }
+#endif /* HAVE_MMX_INLINE */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideodsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideodsp.c
new file mode 100644
index 000000000..6009b64e0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideodsp.c
@@ -0,0 +1,161 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/mpegvideodsp.h"
+#include "libavcodec/videodsp.h"
+
+#if HAVE_INLINE_ASM
+
+static void gmc_mmx(uint8_t *dst, uint8_t *src,
+                    int stride, int h, int ox, int oy,
+                    int dxx, int dxy, int dyx, int dyy,
+                    int shift, int r, int width, int height)
+{
+    const int w    = 8;
+    const int ix   = ox  >> (16 + shift);
+    const int iy   = oy  >> (16 + shift);
+    const int oxs  = ox  >> 4;
+    const int oys  = oy  >> 4;
+    const int dxxs = dxx >> 4;
+    const int dxys = dxy >> 4;
+    const int dyxs = dyx >> 4;
+    const int dyys = dyy >> 4;
+    const uint16_t r4[4]   = { r, r, r, r };
+    const uint16_t dxy4[4] = { dxys, dxys, dxys, dxys };
+    const uint16_t dyy4[4] = { dyys, dyys, dyys, dyys };
+    const uint64_t shift2  = 2 * shift;
+#define MAX_STRIDE 4096U
+#define MAX_H 8U
+    uint8_t edge_buf[(MAX_H + 1) * MAX_STRIDE];
+    int x, y;
+
+    const int dxw = (dxx - (1 << (16 + shift))) * (w - 1);
+    const int dyh = (dyy - (1 << (16 + shift))) * (h - 1);
+    const int dxh = dxy * (h - 1);
+    const int dyw = dyx * (w - 1);
+    int need_emu  =  (unsigned) ix >= width  - w || width < w ||
+                     (unsigned) iy >= height - h || height< h
+                     ;
+
+    if ( // non-constant fullpel offset (3% of blocks)
+        ((ox ^ (ox + dxw)) | (ox ^ (ox + dxh)) | (ox ^ (ox + dxw + dxh)) |
+         (oy ^ (oy + dyw)) | (oy ^ (oy + dyh)) | (oy ^ (oy + dyw + dyh))) >> (16 + shift) ||
+        // uses more than 16 bits of subpel mv (only at huge resolution)
+        (dxx | dxy | dyx | dyy) & 15 ||
+        (need_emu && (h > MAX_H || stride > MAX_STRIDE))) {
+        // FIXME could still use mmx for some of the rows
+        ff_gmc_c(dst, src, stride, h, ox, oy, dxx, dxy, dyx, dyy,
+                 shift, r, width, height);
+        return;
+    }
+
+    src += ix + iy * stride;
+    if (need_emu) {
+        ff_emulated_edge_mc_8(edge_buf, src, stride, stride, w + 1, h + 1, ix, iy, width, height);
+        src = edge_buf;
+    }
+
+    __asm__ volatile (
+        "movd         %0, %%mm6         \n\t"
+        "pxor      %%mm7, %%mm7         \n\t"
+        "punpcklwd %%mm6, %%mm6         \n\t"
+        "punpcklwd %%mm6, %%mm6         \n\t"
+        :: "r" (1 << shift));
+
+    for (x = 0; x < w; x += 4) {
+        uint16_t dx4[4] = { oxs - dxys + dxxs * (x + 0),
+                            oxs - dxys + dxxs * (x + 1),
+                            oxs - dxys + dxxs * (x + 2),
+                            oxs - dxys + dxxs * (x + 3) };
+        uint16_t dy4[4] = { oys - dyys + dyxs * (x + 0),
+                            oys - dyys + dyxs * (x + 1),
+                            oys - dyys + dyxs * (x + 2),
+                            oys - dyys + dyxs * (x + 3) };
+
+        for (y = 0; y < h; y++) {
+            __asm__ volatile (
+                "movq      %0, %%mm4    \n\t"
+                "movq      %1, %%mm5    \n\t"
+                "paddw     %2, %%mm4    \n\t"
+                "paddw     %3, %%mm5    \n\t"
+                "movq   %%mm4, %0       \n\t"
+                "movq   %%mm5, %1       \n\t"
+                "psrlw    $12, %%mm4    \n\t"
+                "psrlw    $12, %%mm5    \n\t"
+                : "+m" (*dx4), "+m" (*dy4)
+                : "m" (*dxy4), "m" (*dyy4));
+
+            __asm__ volatile (
+                "movq      %%mm6, %%mm2 \n\t"
+                "movq      %%mm6, %%mm1 \n\t"
+                "psubw     %%mm4, %%mm2 \n\t"
+                "psubw     %%mm5, %%mm1 \n\t"
+                "movq      %%mm2, %%mm0 \n\t"
+                "movq      %%mm4, %%mm3 \n\t"
+                "pmullw    %%mm1, %%mm0 \n\t" // (s - dx) * (s - dy)
+                "pmullw    %%mm5, %%mm3 \n\t" // dx * dy
+                "pmullw    %%mm5, %%mm2 \n\t" // (s - dx) * dy
+                "pmullw    %%mm4, %%mm1 \n\t" // dx * (s - dy)
+
+                "movd         %4, %%mm5 \n\t"
+                "movd         %3, %%mm4 \n\t"
+                "punpcklbw %%mm7, %%mm5 \n\t"
+                "punpcklbw %%mm7, %%mm4 \n\t"
+                "pmullw    %%mm5, %%mm3 \n\t" // src[1, 1] * dx * dy
+                "pmullw    %%mm4, %%mm2 \n\t" // src[0, 1] * (s - dx) * dy
+
+                "movd         %2, %%mm5 \n\t"
+                "movd         %1, %%mm4 \n\t"
+                "punpcklbw %%mm7, %%mm5 \n\t"
+                "punpcklbw %%mm7, %%mm4 \n\t"
+                "pmullw    %%mm5, %%mm1 \n\t" // src[1, 0] * dx * (s - dy)
+                "pmullw    %%mm4, %%mm0 \n\t" // src[0, 0] * (s - dx) * (s - dy)
+                "paddw        %5, %%mm1 \n\t"
+                "paddw     %%mm3, %%mm2 \n\t"
+                "paddw     %%mm1, %%mm0 \n\t"
+                "paddw     %%mm2, %%mm0 \n\t"
+
+                "psrlw        %6, %%mm0 \n\t"
+                "packuswb  %%mm0, %%mm0 \n\t"
+                "movd      %%mm0, %0    \n\t"
+
+                : "=m" (dst[x + y * stride])
+                : "m" (src[0]), "m" (src[1]),
+                  "m" (src[stride]), "m" (src[stride + 1]),
+                  "m" (*r4), "m" (shift2));
+            src += stride;
+        }
+        src += 4 - h * stride;
+    }
+}
+
+#endif /* HAVE_INLINE_ASM */
+
+av_cold void ff_mpegvideodsp_init_x86(MpegVideoDSPContext *c)
+{
+#if HAVE_INLINE_ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (INLINE_MMX(cpu_flags))
+        c->gmc = gmc_mmx;
+#endif /* HAVE_INLINE_ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideoenc.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideoenc.c
new file mode 100644
index 000000000..c884cf121
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideoenc.c
@@ -0,0 +1,244 @@
+/*
+ * The simplest mpeg encoder (well, it was the simplest!)
+ * Copyright (c) 2000,2001 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/dct.h"
+#include "libavcodec/mpegvideo.h"
+
+/* not permutated inverse zigzag_direct + 1 for MMX quantizer */
+DECLARE_ALIGNED(16, static const uint16_t, inv_zigzag_direct16)[64] = {
+    1,  2,  6,  7,  15, 16, 28, 29,
+    3,  5,  8,  14, 17, 27, 30, 43,
+    4,  9,  13, 18, 26, 31, 42, 44,
+    10, 12, 19, 25, 32, 41, 45, 54,
+    11, 20, 24, 33, 40, 46, 53, 55,
+    21, 23, 34, 39, 47, 52, 56, 61,
+    22, 35, 38, 48, 51, 57, 60, 62,
+    36, 37, 49, 50, 58, 59, 63, 64,
+};
+
+#if HAVE_6REGS
+
+#if HAVE_MMX_INLINE
+#define COMPILE_TEMPLATE_MMXEXT 0
+#define COMPILE_TEMPLATE_SSE2   0
+#define COMPILE_TEMPLATE_SSSE3  0
+#define RENAME(a)      a ## _mmx
+#define RENAME_FDCT(a) a ## _mmx
+#include "mpegvideoenc_template.c"
+#endif /* HAVE_MMX_INLINE */
+
+#if HAVE_MMXEXT_INLINE
+#undef COMPILE_TEMPLATE_SSSE3
+#undef COMPILE_TEMPLATE_SSE2
+#undef COMPILE_TEMPLATE_MMXEXT
+#define COMPILE_TEMPLATE_MMXEXT 1
+#define COMPILE_TEMPLATE_SSE2   0
+#define COMPILE_TEMPLATE_SSSE3  0
+#undef RENAME
+#undef RENAME_FDCT
+#define RENAME(a)      a ## _mmxext
+#define RENAME_FDCT(a) a ## _mmxext
+#include "mpegvideoenc_template.c"
+#endif /* HAVE_MMXEXT_INLINE */
+
+#if HAVE_SSE2_INLINE
+#undef COMPILE_TEMPLATE_MMXEXT
+#undef COMPILE_TEMPLATE_SSE2
+#undef COMPILE_TEMPLATE_SSSE3
+#define COMPILE_TEMPLATE_MMXEXT 0
+#define COMPILE_TEMPLATE_SSE2   1
+#define COMPILE_TEMPLATE_SSSE3  0
+#undef RENAME
+#undef RENAME_FDCT
+#define RENAME(a)      a ## _sse2
+#define RENAME_FDCT(a) a ## _sse2
+#include "mpegvideoenc_template.c"
+#endif /* HAVE_SSE2_INLINE */
+
+#if HAVE_SSSE3_INLINE
+#undef COMPILE_TEMPLATE_MMXEXT
+#undef COMPILE_TEMPLATE_SSE2
+#undef COMPILE_TEMPLATE_SSSE3
+#define COMPILE_TEMPLATE_MMXEXT 0
+#define COMPILE_TEMPLATE_SSE2   1
+#define COMPILE_TEMPLATE_SSSE3  1
+#undef RENAME
+#undef RENAME_FDCT
+#define RENAME(a)      a ## _ssse3
+#define RENAME_FDCT(a) a ## _sse2
+#include "mpegvideoenc_template.c"
+#endif /* HAVE_SSSE3_INLINE */
+
+#endif /* HAVE_6REGS */
+
+#if HAVE_INLINE_ASM
+#if HAVE_MMX_INLINE
+static void  denoise_dct_mmx(MpegEncContext *s, int16_t *block){
+    const int intra= s->mb_intra;
+    int *sum= s->dct_error_sum[intra];
+    uint16_t *offset= s->dct_offset[intra];
+
+    s->dct_count[intra]++;
+
+    __asm__ volatile(
+        "pxor %%mm7, %%mm7                      \n\t"
+        "1:                                     \n\t"
+        "pxor %%mm0, %%mm0                      \n\t"
+        "pxor %%mm1, %%mm1                      \n\t"
+        "movq (%0), %%mm2                       \n\t"
+        "movq 8(%0), %%mm3                      \n\t"
+        "pcmpgtw %%mm2, %%mm0                   \n\t"
+        "pcmpgtw %%mm3, %%mm1                   \n\t"
+        "pxor %%mm0, %%mm2                      \n\t"
+        "pxor %%mm1, %%mm3                      \n\t"
+        "psubw %%mm0, %%mm2                     \n\t"
+        "psubw %%mm1, %%mm3                     \n\t"
+        "movq %%mm2, %%mm4                      \n\t"
+        "movq %%mm3, %%mm5                      \n\t"
+        "psubusw (%2), %%mm2                    \n\t"
+        "psubusw 8(%2), %%mm3                   \n\t"
+        "pxor %%mm0, %%mm2                      \n\t"
+        "pxor %%mm1, %%mm3                      \n\t"
+        "psubw %%mm0, %%mm2                     \n\t"
+        "psubw %%mm1, %%mm3                     \n\t"
+        "movq %%mm2, (%0)                       \n\t"
+        "movq %%mm3, 8(%0)                      \n\t"
+        "movq %%mm4, %%mm2                      \n\t"
+        "movq %%mm5, %%mm3                      \n\t"
+        "punpcklwd %%mm7, %%mm4                 \n\t"
+        "punpckhwd %%mm7, %%mm2                 \n\t"
+        "punpcklwd %%mm7, %%mm5                 \n\t"
+        "punpckhwd %%mm7, %%mm3                 \n\t"
+        "paddd (%1), %%mm4                      \n\t"
+        "paddd 8(%1), %%mm2                     \n\t"
+        "paddd 16(%1), %%mm5                    \n\t"
+        "paddd 24(%1), %%mm3                    \n\t"
+        "movq %%mm4, (%1)                       \n\t"
+        "movq %%mm2, 8(%1)                      \n\t"
+        "movq %%mm5, 16(%1)                     \n\t"
+        "movq %%mm3, 24(%1)                     \n\t"
+        "add $16, %0                            \n\t"
+        "add $32, %1                            \n\t"
+        "add $16, %2                            \n\t"
+        "cmp %3, %0                             \n\t"
+            " jb 1b                             \n\t"
+        : "+r" (block), "+r" (sum), "+r" (offset)
+        : "r"(block+64)
+    );
+}
+#endif /* HAVE_MMX_INLINE */
+
+#if HAVE_SSE2_INLINE
+static void  denoise_dct_sse2(MpegEncContext *s, int16_t *block){
+    const int intra= s->mb_intra;
+    int *sum= s->dct_error_sum[intra];
+    uint16_t *offset= s->dct_offset[intra];
+
+    s->dct_count[intra]++;
+
+    __asm__ volatile(
+        "pxor %%xmm7, %%xmm7                    \n\t"
+        "1:                                     \n\t"
+        "pxor %%xmm0, %%xmm0                    \n\t"
+        "pxor %%xmm1, %%xmm1                    \n\t"
+        "movdqa (%0), %%xmm2                    \n\t"
+        "movdqa 16(%0), %%xmm3                  \n\t"
+        "pcmpgtw %%xmm2, %%xmm0                 \n\t"
+        "pcmpgtw %%xmm3, %%xmm1                 \n\t"
+        "pxor %%xmm0, %%xmm2                    \n\t"
+        "pxor %%xmm1, %%xmm3                    \n\t"
+        "psubw %%xmm0, %%xmm2                   \n\t"
+        "psubw %%xmm1, %%xmm3                   \n\t"
+        "movdqa %%xmm2, %%xmm4                  \n\t"
+        "movdqa %%xmm3, %%xmm5                  \n\t"
+        "psubusw (%2), %%xmm2                   \n\t"
+        "psubusw 16(%2), %%xmm3                 \n\t"
+        "pxor %%xmm0, %%xmm2                    \n\t"
+        "pxor %%xmm1, %%xmm3                    \n\t"
+        "psubw %%xmm0, %%xmm2                   \n\t"
+        "psubw %%xmm1, %%xmm3                   \n\t"
+        "movdqa %%xmm2, (%0)                    \n\t"
+        "movdqa %%xmm3, 16(%0)                  \n\t"
+        "movdqa %%xmm4, %%xmm6                  \n\t"
+        "movdqa %%xmm5, %%xmm0                  \n\t"
+        "punpcklwd %%xmm7, %%xmm4               \n\t"
+        "punpckhwd %%xmm7, %%xmm6               \n\t"
+        "punpcklwd %%xmm7, %%xmm5               \n\t"
+        "punpckhwd %%xmm7, %%xmm0               \n\t"
+        "paddd (%1), %%xmm4                     \n\t"
+        "paddd 16(%1), %%xmm6                   \n\t"
+        "paddd 32(%1), %%xmm5                   \n\t"
+        "paddd 48(%1), %%xmm0                   \n\t"
+        "movdqa %%xmm4, (%1)                    \n\t"
+        "movdqa %%xmm6, 16(%1)                  \n\t"
+        "movdqa %%xmm5, 32(%1)                  \n\t"
+        "movdqa %%xmm0, 48(%1)                  \n\t"
+        "add $32, %0                            \n\t"
+        "add $64, %1                            \n\t"
+        "add $32, %2                            \n\t"
+        "cmp %3, %0                             \n\t"
+            " jb 1b                             \n\t"
+        : "+r" (block), "+r" (sum), "+r" (offset)
+        : "r"(block+64)
+          XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
+                            "%xmm4", "%xmm5", "%xmm6", "%xmm7")
+    );
+}
+#endif /* HAVE_SSE2_INLINE */
+#endif /* HAVE_INLINE_ASM */
+
+av_cold void ff_dct_encode_init_x86(MpegEncContext *s)
+{
+    const int dct_algo = s->avctx->dct_algo;
+
+    if (dct_algo == FF_DCT_AUTO || dct_algo == FF_DCT_MMX) {
+#if HAVE_MMX_INLINE
+        int cpu_flags = av_get_cpu_flags();
+        if (INLINE_MMX(cpu_flags)) {
+#if HAVE_6REGS
+            s->dct_quantize = dct_quantize_mmx;
+#endif
+            s->denoise_dct  = denoise_dct_mmx;
+        }
+#endif
+#if HAVE_6REGS && HAVE_MMXEXT_INLINE
+        if (INLINE_MMXEXT(cpu_flags))
+            s->dct_quantize = dct_quantize_mmxext;
+#endif
+#if HAVE_SSE2_INLINE
+        if (INLINE_SSE2(cpu_flags)) {
+#if HAVE_6REGS
+            s->dct_quantize = dct_quantize_sse2;
+#endif
+            s->denoise_dct  = denoise_dct_sse2;
+        }
+#endif
+#if HAVE_6REGS && HAVE_SSSE3_INLINE
+        if (INLINE_SSSE3(cpu_flags))
+            s->dct_quantize = dct_quantize_ssse3;
+#endif
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideoenc_qns_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideoenc_qns_template.c
new file mode 100644
index 000000000..882d48620
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideoenc_qns_template.c
@@ -0,0 +1,109 @@
+/*
+ * QNS functions are compiled 3 times for MMX/3DNOW/SSSE3
+ * Copyright (c) 2004 Michael Niedermayer
+ *
+ * MMX optimization by Michael Niedermayer <michaelni@gmx.at>
+ * 3DNow! and SSSE3 optimization by Zuxy Meng <zuxy.meng@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/avassert.h"
+#include "libavutil/common.h"
+#include "libavutil/x86/asm.h"
+
+#include "inline_asm.h"
+
+#define MAX_ABS (512 >> (SCALE_OFFSET>0 ? SCALE_OFFSET : 0))
+
+static int DEF(try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale)
+{
+    x86_reg i=0;
+
+    av_assert2(FFABS(scale) < MAX_ABS);
+    scale<<= 16 + SCALE_OFFSET - BASIS_SHIFT + RECON_SHIFT;
+
+    SET_RND(mm6);
+    __asm__ volatile(
+        "pxor %%mm7, %%mm7              \n\t"
+        "movd  %4, %%mm5                \n\t"
+        "punpcklwd %%mm5, %%mm5         \n\t"
+        "punpcklwd %%mm5, %%mm5         \n\t"
+        ".p2align 4                     \n\t"
+        "1:                             \n\t"
+        "movq  (%1, %0), %%mm0          \n\t"
+        "movq  8(%1, %0), %%mm1         \n\t"
+        PMULHRW(%%mm0, %%mm1, %%mm5, %%mm6)
+        "paddw (%2, %0), %%mm0          \n\t"
+        "paddw 8(%2, %0), %%mm1         \n\t"
+        "psraw $6, %%mm0                \n\t"
+        "psraw $6, %%mm1                \n\t"
+        "pmullw (%3, %0), %%mm0         \n\t"
+        "pmullw 8(%3, %0), %%mm1        \n\t"
+        "pmaddwd %%mm0, %%mm0           \n\t"
+        "pmaddwd %%mm1, %%mm1           \n\t"
+        "paddd %%mm1, %%mm0             \n\t"
+        "psrld $4, %%mm0                \n\t"
+        "paddd %%mm0, %%mm7             \n\t"
+        "add $16, %0                    \n\t"
+        "cmp $128, %0                   \n\t" //FIXME optimize & bench
+        " jb 1b                         \n\t"
+        PHADDD(%%mm7, %%mm6)
+        "psrld $2, %%mm7                \n\t"
+        "movd %%mm7, %0                 \n\t"
+
+        : "+r" (i)
+        : "r"(basis), "r"(rem), "r"(weight), "g"(scale)
+    );
+    return i;
+}
+
+static void DEF(add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale)
+{
+    x86_reg i=0;
+
+    if(FFABS(scale) < MAX_ABS){
+        scale<<= 16 + SCALE_OFFSET - BASIS_SHIFT + RECON_SHIFT;
+        SET_RND(mm6);
+        __asm__ volatile(
+                "movd  %3, %%mm5        \n\t"
+                "punpcklwd %%mm5, %%mm5 \n\t"
+                "punpcklwd %%mm5, %%mm5 \n\t"
+                ".p2align 4             \n\t"
+                "1:                     \n\t"
+                "movq  (%1, %0), %%mm0  \n\t"
+                "movq  8(%1, %0), %%mm1 \n\t"
+                PMULHRW(%%mm0, %%mm1, %%mm5, %%mm6)
+                "paddw (%2, %0), %%mm0  \n\t"
+                "paddw 8(%2, %0), %%mm1 \n\t"
+                "movq %%mm0, (%2, %0)   \n\t"
+                "movq %%mm1, 8(%2, %0)  \n\t"
+                "add $16, %0            \n\t"
+                "cmp $128, %0           \n\t" // FIXME optimize & bench
+                " jb 1b                 \n\t"
+
+                : "+r" (i)
+                : "r"(basis), "r"(rem), "g"(scale)
+        );
+    }else{
+        for(i=0; i<8*8; i++){
+            rem[i] += (basis[i]*scale + (1<<(BASIS_SHIFT - RECON_SHIFT-1)))>>(BASIS_SHIFT - RECON_SHIFT);
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideoenc_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideoenc_template.c
new file mode 100644
index 000000000..1201be514
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideoenc_template.c
@@ -0,0 +1,423 @@
+/*
+ * MPEG video MMX templates
+ *
+ * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/internal.h"
+#include "libavutil/x86/asm.h"
+#include "libavcodec/mpegutils.h"
+#include "libavcodec/mpegvideo.h"
+#include "fdct.h"
+
+#undef MMREG_WIDTH
+#undef MM
+#undef MOVQ
+#undef SPREADW
+#undef PMAXW
+#undef PMAX
+#undef SAVE_SIGN
+#undef RESTORE_SIGN
+
+#if COMPILE_TEMPLATE_SSE2
+#define MMREG_WIDTH "16"
+#define MM "%%xmm"
+#define MOVQ "movdqa"
+#define SPREADW(a) \
+            "pshuflw $0, "a", "a"       \n\t"\
+            "punpcklwd "a", "a"         \n\t"
+#define PMAXW(a,b) "pmaxsw "a", "b"     \n\t"
+#define PMAX(a,b) \
+            "movhlps "a", "b"           \n\t"\
+            PMAXW(b, a)\
+            "pshuflw $0x0E, "a", "b"    \n\t"\
+            PMAXW(b, a)\
+            "pshuflw $0x01, "a", "b"    \n\t"\
+            PMAXW(b, a)
+#else
+#define MMREG_WIDTH "8"
+#define MM "%%mm"
+#define MOVQ "movq"
+#if COMPILE_TEMPLATE_MMXEXT
+#define SPREADW(a) "pshufw $0, "a", "a" \n\t"
+#define PMAXW(a,b) "pmaxsw "a", "b"     \n\t"
+#define PMAX(a,b) \
+            "pshufw $0x0E, "a", "b"     \n\t"\
+            PMAXW(b, a)\
+            "pshufw $0x01, "a", "b"     \n\t"\
+            PMAXW(b, a)
+#else
+#define SPREADW(a) \
+            "punpcklwd "a", "a"         \n\t"\
+            "punpcklwd "a", "a"         \n\t"
+#define PMAXW(a,b) \
+            "psubusw "a", "b"           \n\t"\
+            "paddw "a", "b"             \n\t"
+#define PMAX(a,b)  \
+            "movq "a", "b"              \n\t"\
+            "psrlq $32, "a"             \n\t"\
+            PMAXW(b, a)\
+            "movq "a", "b"              \n\t"\
+            "psrlq $16, "a"             \n\t"\
+            PMAXW(b, a)
+
+#endif
+#endif
+
+#if COMPILE_TEMPLATE_SSSE3
+#define SAVE_SIGN(a,b) \
+            "movdqa "b", "a"            \n\t"\
+            "pabsw  "b", "b"            \n\t"
+#define RESTORE_SIGN(a,b) \
+            "psignw "a", "b"            \n\t"
+#else
+#define SAVE_SIGN(a,b) \
+            "pxor "a", "a"              \n\t"\
+            "pcmpgtw "b", "a"           \n\t" /* block[i] <= 0 ? 0xFF : 0x00 */\
+            "pxor "a", "b"              \n\t"\
+            "psubw "a", "b"             \n\t" /* ABS(block[i]) */
+#define RESTORE_SIGN(a,b) \
+            "pxor "a", "b"              \n\t"\
+            "psubw "a", "b"             \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
+#endif
+
+static int RENAME(dct_quantize)(MpegEncContext *s,
+                            int16_t *block, int n,
+                            int qscale, int *overflow)
+{
+    x86_reg last_non_zero_p1;
+    int level=0, q; //=0 is because gcc says uninitialized ...
+    const uint16_t *qmat, *bias;
+    LOCAL_ALIGNED_16(int16_t, temp_block, [64]);
+
+    av_assert2((7&(int)(&temp_block[0])) == 0); //did gcc align it correctly?
+
+    //s->fdct (block);
+    RENAME_FDCT(ff_fdct)(block); // cannot be anything else ...
+
+    if(s->dct_error_sum)
+        s->denoise_dct(s, block);
+
+    if (s->mb_intra) {
+        int dummy;
+        if (n < 4){
+            q = s->y_dc_scale;
+            bias = s->q_intra_matrix16[qscale][1];
+            qmat = s->q_intra_matrix16[qscale][0];
+        }else{
+            q = s->c_dc_scale;
+            bias = s->q_chroma_intra_matrix16[qscale][1];
+            qmat = s->q_chroma_intra_matrix16[qscale][0];
+        }
+        /* note: block[0] is assumed to be positive */
+        if (!s->h263_aic) {
+        __asm__ volatile (
+                "mul %%ecx                \n\t"
+                : "=d" (level), "=a"(dummy)
+                : "a" ((block[0]>>2) + q), "c" (ff_inverse[q<<1])
+        );
+        } else
+            /* For AIC we skip quant/dequant of INTRADC */
+            level = (block[0] + 4)>>3;
+
+        block[0]=0; //avoid fake overflow
+//        temp_block[0] = (block[0] + (q >> 1)) / q;
+        last_non_zero_p1 = 1;
+    } else {
+        last_non_zero_p1 = 0;
+        bias = s->q_inter_matrix16[qscale][1];
+        qmat = s->q_inter_matrix16[qscale][0];
+    }
+
+    if((s->out_format == FMT_H263 || s->out_format == FMT_H261) && s->mpeg_quant==0){
+
+        __asm__ volatile(
+            "movd %%"FF_REG_a", "MM"3           \n\t" // last_non_zero_p1
+            SPREADW(MM"3")
+            "pxor "MM"7, "MM"7                  \n\t" // 0
+            "pxor "MM"4, "MM"4                  \n\t" // 0
+            MOVQ" (%2), "MM"5                   \n\t" // qmat[0]
+            "pxor "MM"6, "MM"6                  \n\t"
+            "psubw (%3), "MM"6                  \n\t" // -bias[0]
+            "mov $-128, %%"FF_REG_a"            \n\t"
+            ".p2align 4                         \n\t"
+            "1:                                 \n\t"
+            MOVQ" (%1, %%"FF_REG_a"), "MM"0     \n\t" // block[i]
+            SAVE_SIGN(MM"1", MM"0")                   // ABS(block[i])
+            "psubusw "MM"6, "MM"0               \n\t" // ABS(block[i]) + bias[0]
+            "pmulhw "MM"5, "MM"0                \n\t" // (ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16
+            "por "MM"0, "MM"4                   \n\t"
+            RESTORE_SIGN(MM"1", MM"0")                // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
+            MOVQ" "MM"0, (%5, %%"FF_REG_a")     \n\t"
+            "pcmpeqw "MM"7, "MM"0               \n\t" // out==0 ? 0xFF : 0x00
+            MOVQ" (%4, %%"FF_REG_a"), "MM"1     \n\t"
+            MOVQ" "MM"7, (%1, %%"FF_REG_a")     \n\t" // 0
+            "pandn "MM"1, "MM"0                 \n\t"
+            PMAXW(MM"0", MM"3")
+            "add $"MMREG_WIDTH", %%"FF_REG_a"   \n\t"
+            " js 1b                             \n\t"
+            PMAX(MM"3", MM"0")
+            "movd "MM"3, %%"FF_REG_a"           \n\t"
+            "movzbl %%al, %%eax                 \n\t" // last_non_zero_p1
+            : "+a" (last_non_zero_p1)
+            : "r" (block+64), "r" (qmat), "r" (bias),
+              "r" (inv_zigzag_direct16 + 64), "r" (temp_block + 64)
+              XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
+                                "%xmm4", "%xmm5", "%xmm6", "%xmm7")
+        );
+    }else{ // FMT_H263
+        __asm__ volatile(
+            "movd %%"FF_REG_a", "MM"3           \n\t" // last_non_zero_p1
+            SPREADW(MM"3")
+            "pxor "MM"7, "MM"7                  \n\t" // 0
+            "pxor "MM"4, "MM"4                  \n\t" // 0
+            "mov $-128, %%"FF_REG_a"            \n\t"
+            ".p2align 4                         \n\t"
+            "1:                                 \n\t"
+            MOVQ" (%1, %%"FF_REG_a"), "MM"0     \n\t" // block[i]
+            SAVE_SIGN(MM"1", MM"0")                   // ABS(block[i])
+            MOVQ" (%3, %%"FF_REG_a"), "MM"6     \n\t" // bias[0]
+            "paddusw "MM"6, "MM"0               \n\t" // ABS(block[i]) + bias[0]
+            MOVQ" (%2, %%"FF_REG_a"), "MM"5     \n\t" // qmat[i]
+            "pmulhw "MM"5, "MM"0                \n\t" // (ABS(block[i])*qmat[0] + bias[0]*qmat[0])>>16
+            "por "MM"0, "MM"4                   \n\t"
+            RESTORE_SIGN(MM"1", MM"0")                // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
+            MOVQ" "MM"0, (%5, %%"FF_REG_a")     \n\t"
+            "pcmpeqw "MM"7, "MM"0               \n\t" // out==0 ? 0xFF : 0x00
+            MOVQ" (%4, %%"FF_REG_a"), "MM"1     \n\t"
+            MOVQ" "MM"7, (%1, %%"FF_REG_a")     \n\t" // 0
+            "pandn "MM"1, "MM"0                 \n\t"
+            PMAXW(MM"0", MM"3")
+            "add $"MMREG_WIDTH", %%"FF_REG_a"   \n\t"
+            " js 1b                             \n\t"
+            PMAX(MM"3", MM"0")
+            "movd "MM"3, %%"FF_REG_a"           \n\t"
+            "movzbl %%al, %%eax                 \n\t" // last_non_zero_p1
+            : "+a" (last_non_zero_p1)
+            : "r" (block+64), "r" (qmat+64), "r" (bias+64),
+              "r" (inv_zigzag_direct16 + 64), "r" (temp_block + 64)
+              XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
+                                "%xmm4", "%xmm5", "%xmm6", "%xmm7")
+        );
+    }
+    __asm__ volatile(
+        "movd %1, "MM"1                     \n\t" // max_qcoeff
+        SPREADW(MM"1")
+        "psubusw "MM"1, "MM"4               \n\t"
+        "packuswb "MM"4, "MM"4              \n\t"
+#if COMPILE_TEMPLATE_SSE2
+        "packsswb "MM"4, "MM"4              \n\t"
+#endif
+        "movd "MM"4, %0                     \n\t" // *overflow
+        : "=g" (*overflow)
+        : "g" (s->max_qcoeff)
+    );
+
+    if(s->mb_intra) block[0]= level;
+    else            block[0]= temp_block[0];
+
+    if (s->idsp.perm_type == FF_IDCT_PERM_SIMPLE) {
+        if(last_non_zero_p1 <= 1) goto end;
+        block[0x08] = temp_block[0x01]; block[0x10] = temp_block[0x08];
+        block[0x20] = temp_block[0x10];
+        if(last_non_zero_p1 <= 4) goto end;
+        block[0x18] = temp_block[0x09]; block[0x04] = temp_block[0x02];
+        block[0x09] = temp_block[0x03];
+        if(last_non_zero_p1 <= 7) goto end;
+        block[0x14] = temp_block[0x0A]; block[0x28] = temp_block[0x11];
+        block[0x12] = temp_block[0x18]; block[0x02] = temp_block[0x20];
+        if(last_non_zero_p1 <= 11) goto end;
+        block[0x1A] = temp_block[0x19]; block[0x24] = temp_block[0x12];
+        block[0x19] = temp_block[0x0B]; block[0x01] = temp_block[0x04];
+        block[0x0C] = temp_block[0x05];
+        if(last_non_zero_p1 <= 16) goto end;
+        block[0x11] = temp_block[0x0C]; block[0x29] = temp_block[0x13];
+        block[0x16] = temp_block[0x1A]; block[0x0A] = temp_block[0x21];
+        block[0x30] = temp_block[0x28]; block[0x22] = temp_block[0x30];
+        block[0x38] = temp_block[0x29]; block[0x06] = temp_block[0x22];
+        if(last_non_zero_p1 <= 24) goto end;
+        block[0x1B] = temp_block[0x1B]; block[0x21] = temp_block[0x14];
+        block[0x1C] = temp_block[0x0D]; block[0x05] = temp_block[0x06];
+        block[0x0D] = temp_block[0x07]; block[0x15] = temp_block[0x0E];
+        block[0x2C] = temp_block[0x15]; block[0x13] = temp_block[0x1C];
+        if(last_non_zero_p1 <= 32) goto end;
+        block[0x0B] = temp_block[0x23]; block[0x34] = temp_block[0x2A];
+        block[0x2A] = temp_block[0x31]; block[0x32] = temp_block[0x38];
+        block[0x3A] = temp_block[0x39]; block[0x26] = temp_block[0x32];
+        block[0x39] = temp_block[0x2B]; block[0x03] = temp_block[0x24];
+        if(last_non_zero_p1 <= 40) goto end;
+        block[0x1E] = temp_block[0x1D]; block[0x25] = temp_block[0x16];
+        block[0x1D] = temp_block[0x0F]; block[0x2D] = temp_block[0x17];
+        block[0x17] = temp_block[0x1E]; block[0x0E] = temp_block[0x25];
+        block[0x31] = temp_block[0x2C]; block[0x2B] = temp_block[0x33];
+        if(last_non_zero_p1 <= 48) goto end;
+        block[0x36] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
+        block[0x23] = temp_block[0x34]; block[0x3C] = temp_block[0x2D];
+        block[0x07] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
+        block[0x0F] = temp_block[0x27]; block[0x35] = temp_block[0x2E];
+        if(last_non_zero_p1 <= 56) goto end;
+        block[0x2E] = temp_block[0x35]; block[0x33] = temp_block[0x3C];
+        block[0x3E] = temp_block[0x3D]; block[0x27] = temp_block[0x36];
+        block[0x3D] = temp_block[0x2F]; block[0x2F] = temp_block[0x37];
+        block[0x37] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
+    }else if(s->idsp.perm_type == FF_IDCT_PERM_LIBMPEG2){
+        if(last_non_zero_p1 <= 1) goto end;
+        block[0x04] = temp_block[0x01];
+        block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
+        if(last_non_zero_p1 <= 4) goto end;
+        block[0x0C] = temp_block[0x09]; block[0x01] = temp_block[0x02];
+        block[0x05] = temp_block[0x03];
+        if(last_non_zero_p1 <= 7) goto end;
+        block[0x09] = temp_block[0x0A]; block[0x14] = temp_block[0x11];
+        block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
+        if(last_non_zero_p1 <= 11) goto end;
+        block[0x1C] = temp_block[0x19];
+        block[0x11] = temp_block[0x12]; block[0x0D] = temp_block[0x0B];
+        block[0x02] = temp_block[0x04]; block[0x06] = temp_block[0x05];
+        if(last_non_zero_p1 <= 16) goto end;
+        block[0x0A] = temp_block[0x0C]; block[0x15] = temp_block[0x13];
+        block[0x19] = temp_block[0x1A]; block[0x24] = temp_block[0x21];
+        block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
+        block[0x2C] = temp_block[0x29]; block[0x21] = temp_block[0x22];
+        if(last_non_zero_p1 <= 24) goto end;
+        block[0x1D] = temp_block[0x1B]; block[0x12] = temp_block[0x14];
+        block[0x0E] = temp_block[0x0D]; block[0x03] = temp_block[0x06];
+        block[0x07] = temp_block[0x07]; block[0x0B] = temp_block[0x0E];
+        block[0x16] = temp_block[0x15]; block[0x1A] = temp_block[0x1C];
+        if(last_non_zero_p1 <= 32) goto end;
+        block[0x25] = temp_block[0x23]; block[0x29] = temp_block[0x2A];
+        block[0x34] = temp_block[0x31]; block[0x38] = temp_block[0x38];
+        block[0x3C] = temp_block[0x39]; block[0x31] = temp_block[0x32];
+        block[0x2D] = temp_block[0x2B]; block[0x22] = temp_block[0x24];
+        if(last_non_zero_p1 <= 40) goto end;
+        block[0x1E] = temp_block[0x1D]; block[0x13] = temp_block[0x16];
+        block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
+        block[0x1B] = temp_block[0x1E]; block[0x26] = temp_block[0x25];
+        block[0x2A] = temp_block[0x2C]; block[0x35] = temp_block[0x33];
+        if(last_non_zero_p1 <= 48) goto end;
+        block[0x39] = temp_block[0x3A]; block[0x3D] = temp_block[0x3B];
+        block[0x32] = temp_block[0x34]; block[0x2E] = temp_block[0x2D];
+            block[0x23] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
+        block[0x27] = temp_block[0x27]; block[0x2B] = temp_block[0x2E];
+        if(last_non_zero_p1 <= 56) goto end;
+        block[0x36] = temp_block[0x35]; block[0x3A] = temp_block[0x3C];
+        block[0x3E] = temp_block[0x3D]; block[0x33] = temp_block[0x36];
+        block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
+        block[0x3B] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
+    } else if (s->idsp.perm_type == FF_IDCT_PERM_NONE) {
+        if(last_non_zero_p1 <= 1) goto end;
+        block[0x01] = temp_block[0x01];
+        block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
+        if(last_non_zero_p1 <= 4) goto end;
+        block[0x09] = temp_block[0x09]; block[0x02] = temp_block[0x02];
+        block[0x03] = temp_block[0x03];
+        if(last_non_zero_p1 <= 7) goto end;
+        block[0x0A] = temp_block[0x0A]; block[0x11] = temp_block[0x11];
+        block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
+        if(last_non_zero_p1 <= 11) goto end;
+        block[0x19] = temp_block[0x19];
+        block[0x12] = temp_block[0x12]; block[0x0B] = temp_block[0x0B];
+        block[0x04] = temp_block[0x04]; block[0x05] = temp_block[0x05];
+        if(last_non_zero_p1 <= 16) goto end;
+        block[0x0C] = temp_block[0x0C]; block[0x13] = temp_block[0x13];
+        block[0x1A] = temp_block[0x1A]; block[0x21] = temp_block[0x21];
+        block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
+        block[0x29] = temp_block[0x29]; block[0x22] = temp_block[0x22];
+        if(last_non_zero_p1 <= 24) goto end;
+        block[0x1B] = temp_block[0x1B]; block[0x14] = temp_block[0x14];
+        block[0x0D] = temp_block[0x0D]; block[0x06] = temp_block[0x06];
+        block[0x07] = temp_block[0x07]; block[0x0E] = temp_block[0x0E];
+        block[0x15] = temp_block[0x15]; block[0x1C] = temp_block[0x1C];
+        if(last_non_zero_p1 <= 32) goto end;
+        block[0x23] = temp_block[0x23]; block[0x2A] = temp_block[0x2A];
+        block[0x31] = temp_block[0x31]; block[0x38] = temp_block[0x38];
+        block[0x39] = temp_block[0x39]; block[0x32] = temp_block[0x32];
+        block[0x2B] = temp_block[0x2B]; block[0x24] = temp_block[0x24];
+        if(last_non_zero_p1 <= 40) goto end;
+        block[0x1D] = temp_block[0x1D]; block[0x16] = temp_block[0x16];
+        block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
+        block[0x1E] = temp_block[0x1E]; block[0x25] = temp_block[0x25];
+        block[0x2C] = temp_block[0x2C]; block[0x33] = temp_block[0x33];
+        if(last_non_zero_p1 <= 48) goto end;
+        block[0x3A] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
+        block[0x34] = temp_block[0x34]; block[0x2D] = temp_block[0x2D];
+        block[0x26] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
+        block[0x27] = temp_block[0x27]; block[0x2E] = temp_block[0x2E];
+        if(last_non_zero_p1 <= 56) goto end;
+        block[0x35] = temp_block[0x35]; block[0x3C] = temp_block[0x3C];
+        block[0x3D] = temp_block[0x3D]; block[0x36] = temp_block[0x36];
+        block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
+        block[0x3E] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
+    } else if (s->idsp.perm_type == FF_IDCT_PERM_TRANSPOSE) {
+        if(last_non_zero_p1 <= 1) goto end;
+        block[0x08] = temp_block[0x01];
+        block[0x01] = temp_block[0x08]; block[0x02] = temp_block[0x10];
+        if(last_non_zero_p1 <= 4) goto end;
+        block[0x09] = temp_block[0x09]; block[0x10] = temp_block[0x02];
+        block[0x18] = temp_block[0x03];
+        if(last_non_zero_p1 <= 7) goto end;
+        block[0x11] = temp_block[0x0A]; block[0x0A] = temp_block[0x11];
+        block[0x03] = temp_block[0x18]; block[0x04] = temp_block[0x20];
+        if(last_non_zero_p1 <= 11) goto end;
+        block[0x0B] = temp_block[0x19];
+        block[0x12] = temp_block[0x12]; block[0x19] = temp_block[0x0B];
+        block[0x20] = temp_block[0x04]; block[0x28] = temp_block[0x05];
+        if(last_non_zero_p1 <= 16) goto end;
+        block[0x21] = temp_block[0x0C]; block[0x1A] = temp_block[0x13];
+        block[0x13] = temp_block[0x1A]; block[0x0C] = temp_block[0x21];
+        block[0x05] = temp_block[0x28]; block[0x06] = temp_block[0x30];
+        block[0x0D] = temp_block[0x29]; block[0x14] = temp_block[0x22];
+        if(last_non_zero_p1 <= 24) goto end;
+        block[0x1B] = temp_block[0x1B]; block[0x22] = temp_block[0x14];
+        block[0x29] = temp_block[0x0D]; block[0x30] = temp_block[0x06];
+        block[0x38] = temp_block[0x07]; block[0x31] = temp_block[0x0E];
+        block[0x2A] = temp_block[0x15]; block[0x23] = temp_block[0x1C];
+        if(last_non_zero_p1 <= 32) goto end;
+        block[0x1C] = temp_block[0x23]; block[0x15] = temp_block[0x2A];
+        block[0x0E] = temp_block[0x31]; block[0x07] = temp_block[0x38];
+        block[0x0F] = temp_block[0x39]; block[0x16] = temp_block[0x32];
+        block[0x1D] = temp_block[0x2B]; block[0x24] = temp_block[0x24];
+        if(last_non_zero_p1 <= 40) goto end;
+        block[0x2B] = temp_block[0x1D]; block[0x32] = temp_block[0x16];
+        block[0x39] = temp_block[0x0F]; block[0x3A] = temp_block[0x17];
+        block[0x33] = temp_block[0x1E]; block[0x2C] = temp_block[0x25];
+        block[0x25] = temp_block[0x2C]; block[0x1E] = temp_block[0x33];
+        if(last_non_zero_p1 <= 48) goto end;
+        block[0x17] = temp_block[0x3A]; block[0x1F] = temp_block[0x3B];
+        block[0x26] = temp_block[0x34]; block[0x2D] = temp_block[0x2D];
+        block[0x34] = temp_block[0x26]; block[0x3B] = temp_block[0x1F];
+        block[0x3C] = temp_block[0x27]; block[0x35] = temp_block[0x2E];
+        if(last_non_zero_p1 <= 56) goto end;
+        block[0x2E] = temp_block[0x35]; block[0x27] = temp_block[0x3C];
+        block[0x2F] = temp_block[0x3D]; block[0x36] = temp_block[0x36];
+        block[0x3D] = temp_block[0x2F]; block[0x3E] = temp_block[0x37];
+        block[0x37] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
+    } else {
+        av_log(s, AV_LOG_DEBUG, "s->idsp.perm_type: %d\n",
+                (int)s->idsp.perm_type);
+        av_assert0(s->idsp.perm_type == FF_IDCT_PERM_NONE ||
+                s->idsp.perm_type == FF_IDCT_PERM_LIBMPEG2 ||
+                s->idsp.perm_type == FF_IDCT_PERM_SIMPLE ||
+                s->idsp.perm_type == FF_IDCT_PERM_TRANSPOSE);
+    }
+    end:
+    return last_non_zero_p1 - 1;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideoencdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideoencdsp_init.c
new file mode 100644
index 000000000..532836cec
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/mpegvideoencdsp_init.c
@@ -0,0 +1,272 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/mpegvideoencdsp.h"
+
+int ff_pix_sum16_mmx(uint8_t *pix, int line_size);
+int ff_pix_sum16_mmxext(uint8_t *pix, int line_size);
+int ff_pix_sum16_sse2(uint8_t *pix, int line_size);
+int ff_pix_sum16_xop(uint8_t *pix, int line_size);
+int ff_pix_norm1_mmx(uint8_t *pix, int line_size);
+int ff_pix_norm1_sse2(uint8_t *pix, int line_size);
+
+#if HAVE_INLINE_ASM
+
+#define PHADDD(a, t)                            \
+    "movq  " #a ", " #t "               \n\t"   \
+    "psrlq    $32, " #a "               \n\t"   \
+    "paddd " #t ", " #a "               \n\t"
+
+/*
+ * pmulhw:   dst[0 - 15] = (src[0 - 15] * dst[0 - 15])[16 - 31]
+ * pmulhrw:  dst[0 - 15] = (src[0 - 15] * dst[0 - 15] + 0x8000)[16 - 31]
+ * pmulhrsw: dst[0 - 15] = (src[0 - 15] * dst[0 - 15] + 0x4000)[15 - 30]
+ */
+#define PMULHRW(x, y, s, o)                     \
+    "pmulhw " #s ", " #x "              \n\t"   \
+    "pmulhw " #s ", " #y "              \n\t"   \
+    "paddw  " #o ", " #x "              \n\t"   \
+    "paddw  " #o ", " #y "              \n\t"   \
+    "psraw      $1, " #x "              \n\t"   \
+    "psraw      $1, " #y "              \n\t"
+#define DEF(x) x ## _mmx
+#define SET_RND MOVQ_WONE
+#define SCALE_OFFSET 1
+
+#include "mpegvideoenc_qns_template.c"
+
+#undef DEF
+#undef SET_RND
+#undef SCALE_OFFSET
+#undef PMULHRW
+
+#define DEF(x) x ## _3dnow
+#define SET_RND(x)
+#define SCALE_OFFSET 0
+#define PMULHRW(x, y, s, o)                     \
+    "pmulhrw " #s ", " #x "             \n\t"   \
+    "pmulhrw " #s ", " #y "             \n\t"
+
+#include "mpegvideoenc_qns_template.c"
+
+#undef DEF
+#undef SET_RND
+#undef SCALE_OFFSET
+#undef PMULHRW
+
+#if HAVE_SSSE3_INLINE
+#undef PHADDD
+#define DEF(x) x ## _ssse3
+#define SET_RND(x)
+#define SCALE_OFFSET -1
+
+#define PHADDD(a, t)                            \
+    "pshufw $0x0E, " #a ", " #t "       \n\t"   \
+    /* faster than phaddd on core2 */           \
+    "paddd " #t ", " #a "               \n\t"
+
+#define PMULHRW(x, y, s, o)                     \
+    "pmulhrsw " #s ", " #x "            \n\t"   \
+    "pmulhrsw " #s ", " #y "            \n\t"
+
+#include "mpegvideoenc_qns_template.c"
+
+#undef DEF
+#undef SET_RND
+#undef SCALE_OFFSET
+#undef PMULHRW
+#undef PHADDD
+#endif /* HAVE_SSSE3_INLINE */
+
+/* Draw the edges of width 'w' of an image of size width, height
+ * this MMX version can only handle w == 8 || w == 16. */
+static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height,
+                           int w, int h, int sides)
+{
+    uint8_t *ptr, *last_line;
+    int i;
+
+    last_line = buf + (height - 1) * wrap;
+    /* left and right */
+    ptr = buf;
+    if (w == 8) {
+        __asm__ volatile (
+            "1:                             \n\t"
+            "movd            (%0), %%mm0    \n\t"
+            "punpcklbw      %%mm0, %%mm0    \n\t"
+            "punpcklwd      %%mm0, %%mm0    \n\t"
+            "punpckldq      %%mm0, %%mm0    \n\t"
+            "movq           %%mm0, -8(%0)   \n\t"
+            "movq      -8(%0, %2), %%mm1    \n\t"
+            "punpckhbw      %%mm1, %%mm1    \n\t"
+            "punpckhwd      %%mm1, %%mm1    \n\t"
+            "punpckhdq      %%mm1, %%mm1    \n\t"
+            "movq           %%mm1, (%0, %2) \n\t"
+            "add               %1, %0       \n\t"
+            "cmp               %3, %0       \n\t"
+            "jb                1b           \n\t"
+            : "+r" (ptr)
+            : "r" ((x86_reg) wrap), "r" ((x86_reg) width),
+              "r" (ptr + wrap * height));
+    } else if (w == 16) {
+        __asm__ volatile (
+            "1:                                 \n\t"
+            "movd            (%0), %%mm0        \n\t"
+            "punpcklbw      %%mm0, %%mm0        \n\t"
+            "punpcklwd      %%mm0, %%mm0        \n\t"
+            "punpckldq      %%mm0, %%mm0        \n\t"
+            "movq           %%mm0, -8(%0)       \n\t"
+            "movq           %%mm0, -16(%0)      \n\t"
+            "movq      -8(%0, %2), %%mm1        \n\t"
+            "punpckhbw      %%mm1, %%mm1        \n\t"
+            "punpckhwd      %%mm1, %%mm1        \n\t"
+            "punpckhdq      %%mm1, %%mm1        \n\t"
+            "movq           %%mm1,  (%0, %2)    \n\t"
+            "movq           %%mm1, 8(%0, %2)    \n\t"
+            "add               %1, %0           \n\t"
+            "cmp               %3, %0           \n\t"
+            "jb                1b               \n\t"
+            : "+r"(ptr)
+            : "r"((x86_reg)wrap), "r"((x86_reg)width), "r"(ptr + wrap * height)
+            );
+    } else {
+        av_assert1(w == 4);
+        __asm__ volatile (
+            "1:                             \n\t"
+            "movd            (%0), %%mm0    \n\t"
+            "punpcklbw      %%mm0, %%mm0    \n\t"
+            "punpcklwd      %%mm0, %%mm0    \n\t"
+            "movd           %%mm0, -4(%0)   \n\t"
+            "movd      -4(%0, %2), %%mm1    \n\t"
+            "punpcklbw      %%mm1, %%mm1    \n\t"
+            "punpckhwd      %%mm1, %%mm1    \n\t"
+            "punpckhdq      %%mm1, %%mm1    \n\t"
+            "movd           %%mm1, (%0, %2) \n\t"
+            "add               %1, %0       \n\t"
+            "cmp               %3, %0       \n\t"
+            "jb                1b           \n\t"
+            : "+r" (ptr)
+            : "r" ((x86_reg) wrap), "r" ((x86_reg) width),
+              "r" (ptr + wrap * height));
+    }
+
+    /* top and bottom (and hopefully also the corners) */
+    if (sides & EDGE_TOP) {
+        for (i = 0; i < h; i += 4) {
+            ptr = buf - (i + 1) * wrap - w;
+            __asm__ volatile (
+                "1:                             \n\t"
+                "movq (%1, %0), %%mm0           \n\t"
+                "movq    %%mm0, (%0)            \n\t"
+                "movq    %%mm0, (%0, %2)        \n\t"
+                "movq    %%mm0, (%0, %2, 2)     \n\t"
+                "movq    %%mm0, (%0, %3)        \n\t"
+                "add        $8, %0              \n\t"
+                "cmp        %4, %0              \n\t"
+                "jb         1b                  \n\t"
+                : "+r" (ptr)
+                : "r" ((x86_reg) buf - (x86_reg) ptr - w),
+                  "r" ((x86_reg) - wrap), "r" ((x86_reg) - wrap * 3),
+                  "r" (ptr + width + 2 * w));
+        }
+    }
+
+    if (sides & EDGE_BOTTOM) {
+        for (i = 0; i < h; i += 4) {
+            ptr = last_line + (i + 1) * wrap - w;
+            __asm__ volatile (
+                "1:                             \n\t"
+                "movq (%1, %0), %%mm0           \n\t"
+                "movq    %%mm0, (%0)            \n\t"
+                "movq    %%mm0, (%0, %2)        \n\t"
+                "movq    %%mm0, (%0, %2, 2)     \n\t"
+                "movq    %%mm0, (%0, %3)        \n\t"
+                "add        $8, %0              \n\t"
+                "cmp        %4, %0              \n\t"
+                "jb         1b                  \n\t"
+                : "+r" (ptr)
+                : "r" ((x86_reg) last_line - (x86_reg) ptr - w),
+                  "r" ((x86_reg) wrap), "r" ((x86_reg) wrap * 3),
+                  "r" (ptr + width + 2 * w));
+        }
+    }
+}
+
+#endif /* HAVE_INLINE_ASM */
+
+av_cold void ff_mpegvideoencdsp_init_x86(MpegvideoEncDSPContext *c,
+                                         AVCodecContext *avctx)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+#if ARCH_X86_32
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->pix_sum   = ff_pix_sum16_mmx;
+        c->pix_norm1 = ff_pix_norm1_mmx;
+    }
+
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        c->pix_sum     = ff_pix_sum16_mmxext;
+    }
+#endif
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->pix_sum     = ff_pix_sum16_sse2;
+        c->pix_norm1   = ff_pix_norm1_sse2;
+    }
+
+    if (EXTERNAL_XOP(cpu_flags)) {
+        c->pix_sum     = ff_pix_sum16_xop;
+    }
+
+#if HAVE_INLINE_ASM
+
+    if (INLINE_MMX(cpu_flags)) {
+        if (!(avctx->flags & AV_CODEC_FLAG_BITEXACT)) {
+            c->try_8x8basis = try_8x8basis_mmx;
+        }
+        c->add_8x8basis = add_8x8basis_mmx;
+
+        if (avctx->bits_per_raw_sample <= 8) {
+            c->draw_edges = draw_edges_mmx;
+        }
+    }
+
+    if (INLINE_AMD3DNOW(cpu_flags)) {
+        if (!(avctx->flags & AV_CODEC_FLAG_BITEXACT)) {
+            c->try_8x8basis = try_8x8basis_3dnow;
+        }
+        c->add_8x8basis = add_8x8basis_3dnow;
+    }
+
+#if HAVE_SSSE3_INLINE
+    if (INLINE_SSSE3(cpu_flags)) {
+        if (!(avctx->flags & AV_CODEC_FLAG_BITEXACT)) {
+            c->try_8x8basis = try_8x8basis_ssse3;
+        }
+        c->add_8x8basis = add_8x8basis_ssse3;
+    }
+#endif /* HAVE_SSSE3_INLINE */
+
+#endif /* HAVE_INLINE_ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/opusdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/opusdsp_init.c
new file mode 100644
index 000000000..6834c4e6a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/opusdsp_init.c
@@ -0,0 +1,35 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/opusdsp.h"
+
+void ff_opus_postfilter_fma3(float *data, int period, float *gains, int len);
+float ff_opus_deemphasis_fma3(float *out, float *in, float coeff, int len);
+
+av_cold void ff_opus_dsp_init_x86(OpusDSP *ctx)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_FMA3_FAST(cpu_flags)) {
+        ctx->postfilter = ff_opus_postfilter_fma3;
+        ctx->deemphasis = ff_opus_deemphasis_fma3;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/pixblockdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/pixblockdsp_init.c
new file mode 100644
index 000000000..ade55e01a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/pixblockdsp_init.c
@@ -0,0 +1,52 @@
+/*
+ * SIMD-optimized pixel operations
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/pixblockdsp.h"
+
+void ff_get_pixels_mmx(int16_t *block, const uint8_t *pixels, ptrdiff_t stride);
+void ff_get_pixels_sse2(int16_t *block, const uint8_t *pixels, ptrdiff_t stride);
+void ff_diff_pixels_mmx(int16_t *block, const uint8_t *s1, const uint8_t *s2,
+                        ptrdiff_t stride);
+void ff_diff_pixels_sse2(int16_t *block, const uint8_t *s1, const uint8_t *s2,
+                         ptrdiff_t stride);
+
+av_cold void ff_pixblockdsp_init_x86(PixblockDSPContext *c,
+                                     AVCodecContext *avctx,
+                                     unsigned high_bit_depth)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        if (!high_bit_depth)
+            c->get_pixels = ff_get_pixels_mmx;
+        c->diff_pixels_unaligned =
+        c->diff_pixels = ff_diff_pixels_mmx;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        if (!high_bit_depth)
+            c->get_pixels = ff_get_pixels_sse2;
+        c->diff_pixels_unaligned =
+        c->diff_pixels = ff_diff_pixels_sse2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/pngdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/pngdsp_init.c
new file mode 100644
index 000000000..7dca62c67
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/pngdsp_init.c
@@ -0,0 +1,50 @@
+/*
+ * x86 PNG optimizations.
+ * Copyright (c) 2008 Loren Merrit <lorenm@u.washington.edu>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/common.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/pngdsp.h"
+
+void ff_add_png_paeth_prediction_mmxext(uint8_t *dst, uint8_t *src,
+                                        uint8_t *top, int w, int bpp);
+void ff_add_png_paeth_prediction_ssse3(uint8_t *dst, uint8_t *src,
+                                       uint8_t *top, int w, int bpp);
+void ff_add_bytes_l2_mmx (uint8_t *dst, uint8_t *src1,
+                          uint8_t *src2, int w);
+void ff_add_bytes_l2_sse2(uint8_t *dst, uint8_t *src1,
+                          uint8_t *src2, int w);
+
+av_cold void ff_pngdsp_init_x86(PNGDSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+#if ARCH_X86_32
+    if (EXTERNAL_MMX(cpu_flags))
+        dsp->add_bytes_l2         = ff_add_bytes_l2_mmx;
+#endif
+    if (EXTERNAL_MMXEXT(cpu_flags))
+        dsp->add_paeth_prediction = ff_add_png_paeth_prediction_mmxext;
+    if (EXTERNAL_SSE2(cpu_flags))
+        dsp->add_bytes_l2         = ff_add_bytes_l2_sse2;
+    if (EXTERNAL_SSSE3(cpu_flags))
+        dsp->add_paeth_prediction = ff_add_png_paeth_prediction_ssse3;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/proresdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/proresdsp_init.c
new file mode 100644
index 000000000..bde79ab8c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/proresdsp_init.c
@@ -0,0 +1,50 @@
+/*
+ * Apple ProRes compatible decoder
+ *
+ * Copyright (c) 2010-2011 Maxim Poliakovski
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/idctdsp.h"
+#include "libavcodec/proresdsp.h"
+
+void ff_prores_idct_put_10_sse2(uint16_t *dst, ptrdiff_t linesize,
+                                int16_t *block, const int16_t *qmat);
+void ff_prores_idct_put_10_avx (uint16_t *dst, ptrdiff_t linesize,
+                                int16_t *block, const int16_t *qmat);
+
+av_cold void ff_proresdsp_init_x86(ProresDSPContext *dsp, AVCodecContext *avctx)
+{
+#if ARCH_X86_64
+    int cpu_flags = av_get_cpu_flags();
+
+    if (avctx->bits_per_raw_sample == 10){
+        if (EXTERNAL_SSE2(cpu_flags)) {
+            dsp->idct_permutation_type = FF_IDCT_PERM_TRANSPOSE;
+            dsp->idct_put = ff_prores_idct_put_10_sse2;
+        }
+
+        if (EXTERNAL_AVX(cpu_flags)) {
+            dsp->idct_permutation_type = FF_IDCT_PERM_TRANSPOSE;
+            dsp->idct_put = ff_prores_idct_put_10_avx;
+        }
+    }
+#endif /* ARCH_X86_64 */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/qpeldsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/qpeldsp_init.c
new file mode 100644
index 000000000..3b05e156c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/qpeldsp_init.c
@@ -0,0 +1,544 @@
+/*
+ * quarterpel DSP functions
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/pixels.h"
+#include "libavcodec/qpeldsp.h"
+#include "fpel.h"
+
+void ff_put_pixels8_l2_mmxext(uint8_t *dst,
+                              const uint8_t *src1, const uint8_t *src2,
+                              int dstStride, int src1Stride, int h);
+void ff_put_no_rnd_pixels8_l2_mmxext(uint8_t *dst,
+                                     const uint8_t *src1, const uint8_t *src2,
+                                     int dstStride, int src1Stride, int h);
+void ff_avg_pixels8_l2_mmxext(uint8_t *dst,
+                              const uint8_t *src1, const uint8_t *src2,
+                              int dstStride, int src1Stride, int h);
+void ff_put_pixels16_l2_mmxext(uint8_t *dst,
+                               const uint8_t *src1, const uint8_t *src2,
+                               int dstStride, int src1Stride, int h);
+void ff_avg_pixels16_l2_mmxext(uint8_t *dst,
+                               const uint8_t *src1, const uint8_t *src2,
+                               int dstStride, int src1Stride, int h);
+void ff_put_no_rnd_pixels16_l2_mmxext(uint8_t *dst,
+                                      const uint8_t *src1, const uint8_t *src2,
+                                      int dstStride, int src1Stride, int h);
+void ff_put_mpeg4_qpel16_h_lowpass_mmxext(uint8_t *dst, const uint8_t *src,
+                                          int dstStride, int srcStride, int h);
+void ff_avg_mpeg4_qpel16_h_lowpass_mmxext(uint8_t *dst, const uint8_t *src,
+                                          int dstStride, int srcStride, int h);
+void ff_put_no_rnd_mpeg4_qpel16_h_lowpass_mmxext(uint8_t *dst,
+                                                 const uint8_t *src,
+                                                 int dstStride, int srcStride,
+                                                 int h);
+void ff_put_mpeg4_qpel8_h_lowpass_mmxext(uint8_t *dst, const uint8_t *src,
+                                         int dstStride, int srcStride, int h);
+void ff_avg_mpeg4_qpel8_h_lowpass_mmxext(uint8_t *dst, const uint8_t *src,
+                                         int dstStride, int srcStride, int h);
+void ff_put_no_rnd_mpeg4_qpel8_h_lowpass_mmxext(uint8_t *dst,
+                                                const uint8_t *src,
+                                                int dstStride, int srcStride,
+                                                int h);
+void ff_put_mpeg4_qpel16_v_lowpass_mmxext(uint8_t *dst, const uint8_t *src,
+                                          int dstStride, int srcStride);
+void ff_avg_mpeg4_qpel16_v_lowpass_mmxext(uint8_t *dst, const uint8_t *src,
+                                          int dstStride, int srcStride);
+void ff_put_no_rnd_mpeg4_qpel16_v_lowpass_mmxext(uint8_t *dst,
+                                                 const uint8_t *src,
+                                                 int dstStride, int srcStride);
+void ff_put_mpeg4_qpel8_v_lowpass_mmxext(uint8_t *dst, const uint8_t *src,
+                                         int dstStride, int srcStride);
+void ff_avg_mpeg4_qpel8_v_lowpass_mmxext(uint8_t *dst, const uint8_t *src,
+                                         int dstStride, int srcStride);
+void ff_put_no_rnd_mpeg4_qpel8_v_lowpass_mmxext(uint8_t *dst,
+                                                const uint8_t *src,
+                                                int dstStride, int srcStride);
+#define ff_put_no_rnd_pixels16_mmxext ff_put_pixels16_mmx
+#define ff_put_no_rnd_pixels8_mmxext ff_put_pixels8_mmx
+
+#if HAVE_X86ASM
+
+#define ff_put_pixels16_mmxext ff_put_pixels16_mmx
+#define ff_put_pixels8_mmxext  ff_put_pixels8_mmx
+
+#define QPEL_OP(OPNAME, RND, MMX)                                       \
+static void OPNAME ## qpel8_mc00_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    ff_ ## OPNAME ## pixels8_ ## MMX(dst, src, stride, 8);              \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc10_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t temp[8];                                                   \
+    uint8_t *const half = (uint8_t *) temp;                             \
+    ff_put ## RND ## mpeg4_qpel8_h_lowpass_ ## MMX(half, src, 8,        \
+                                                   stride, 8);          \
+    ff_ ## OPNAME ## pixels8_l2_ ## MMX(dst, src, half,                 \
+                                        stride, stride, 8);             \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc20_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    ff_ ## OPNAME ## mpeg4_qpel8_h_lowpass_ ## MMX(dst, src, stride,    \
+                                                   stride, 8);          \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc30_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t temp[8];                                                   \
+    uint8_t *const half = (uint8_t *) temp;                             \
+    ff_put ## RND ## mpeg4_qpel8_h_lowpass_ ## MMX(half, src, 8,        \
+                                                   stride, 8);          \
+    ff_ ## OPNAME ## pixels8_l2_ ## MMX(dst, src + 1, half, stride,     \
+                                        stride, 8);                     \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc01_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t temp[8];                                                   \
+    uint8_t *const half = (uint8_t *) temp;                             \
+    ff_put ## RND ## mpeg4_qpel8_v_lowpass_ ## MMX(half, src,           \
+                                                   8, stride);          \
+    ff_ ## OPNAME ## pixels8_l2_ ## MMX(dst, src, half,                 \
+                                        stride, stride, 8);             \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc02_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    ff_ ## OPNAME ## mpeg4_qpel8_v_lowpass_ ## MMX(dst, src,            \
+                                                   stride, stride);     \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc03_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t temp[8];                                                   \
+    uint8_t *const half = (uint8_t *) temp;                             \
+    ff_put ## RND ## mpeg4_qpel8_v_lowpass_ ## MMX(half, src,           \
+                                                   8, stride);          \
+    ff_ ## OPNAME ## pixels8_l2_ ## MMX(dst, src + stride, half, stride,\
+                                        stride, 8);                     \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc11_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t half[8 + 9];                                               \
+    uint8_t *const halfH  = (uint8_t *) half + 64;                      \
+    uint8_t *const halfHV = (uint8_t *) half;                           \
+    ff_put ## RND ## mpeg4_qpel8_h_lowpass_ ## MMX(halfH, src, 8,       \
+                                                   stride, 9);          \
+    ff_put ## RND ## pixels8_l2_ ## MMX(halfH, src, halfH, 8,           \
+                                        stride, 9);                     \
+    ff_put ## RND ## mpeg4_qpel8_v_lowpass_ ## MMX(halfHV, halfH, 8, 8);\
+    ff_ ## OPNAME ## pixels8_l2_ ## MMX(dst, halfH, halfHV,             \
+                                        stride, 8, 8);                  \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc31_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t half[8 + 9];                                               \
+    uint8_t *const halfH  = (uint8_t *) half + 64;                      \
+    uint8_t *const halfHV = (uint8_t *) half;                           \
+    ff_put ## RND ## mpeg4_qpel8_h_lowpass_ ## MMX(halfH, src, 8,       \
+                                                   stride, 9);          \
+    ff_put ## RND ## pixels8_l2_ ## MMX(halfH, src + 1, halfH, 8,       \
+                                        stride, 9);                     \
+    ff_put ## RND ## mpeg4_qpel8_v_lowpass_ ## MMX(halfHV, halfH, 8, 8);\
+    ff_ ## OPNAME ## pixels8_l2_ ## MMX(dst, halfH, halfHV,             \
+                                        stride, 8, 8);                  \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc13_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t half[8 + 9];                                               \
+    uint8_t *const halfH  = (uint8_t *) half + 64;                      \
+    uint8_t *const halfHV = (uint8_t *) half;                           \
+    ff_put ## RND ## mpeg4_qpel8_h_lowpass_ ## MMX(halfH, src, 8,       \
+                                                   stride, 9);          \
+    ff_put ## RND ## pixels8_l2_ ## MMX(halfH, src, halfH, 8,           \
+                                        stride, 9);                     \
+    ff_put ## RND ## mpeg4_qpel8_v_lowpass_ ## MMX(halfHV, halfH, 8, 8);\
+    ff_ ## OPNAME ## pixels8_l2_ ## MMX(dst, halfH + 8, halfHV,         \
+                                        stride, 8, 8);                  \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc33_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t half[8 + 9];                                               \
+    uint8_t *const halfH  = (uint8_t *) half + 64;                      \
+    uint8_t *const halfHV = (uint8_t *) half;                           \
+    ff_put ## RND ## mpeg4_qpel8_h_lowpass_ ## MMX(halfH, src, 8,       \
+                                                   stride, 9);          \
+    ff_put ## RND ## pixels8_l2_ ## MMX(halfH, src + 1, halfH, 8,       \
+                                        stride, 9);                     \
+    ff_put ## RND ## mpeg4_qpel8_v_lowpass_ ## MMX(halfHV, halfH, 8, 8);\
+    ff_ ## OPNAME ## pixels8_l2_ ## MMX(dst, halfH + 8, halfHV,         \
+                                        stride, 8, 8);                  \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc21_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t half[8 + 9];                                               \
+    uint8_t *const halfH  = (uint8_t *) half + 64;                      \
+    uint8_t *const halfHV = (uint8_t *) half;                           \
+    ff_put ## RND ## mpeg4_qpel8_h_lowpass_ ## MMX(halfH, src, 8,       \
+                                                   stride, 9);          \
+    ff_put ## RND ## mpeg4_qpel8_v_lowpass_ ## MMX(halfHV, halfH, 8, 8);\
+    ff_ ## OPNAME ## pixels8_l2_ ## MMX(dst, halfH, halfHV,             \
+                                        stride, 8, 8);                  \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc23_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t half[8 + 9];                                               \
+    uint8_t *const halfH  = (uint8_t *) half + 64;                      \
+    uint8_t *const halfHV = (uint8_t *) half;                           \
+    ff_put ## RND ## mpeg4_qpel8_h_lowpass_ ## MMX(halfH, src, 8,       \
+                                                   stride, 9);          \
+    ff_put ## RND ## mpeg4_qpel8_v_lowpass_ ## MMX(halfHV, halfH, 8, 8);\
+    ff_ ## OPNAME ## pixels8_l2_ ## MMX(dst, halfH + 8, halfHV,         \
+                                        stride, 8, 8);                  \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc12_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t half[8 + 9];                                               \
+    uint8_t *const halfH = (uint8_t *) half;                            \
+    ff_put ## RND ## mpeg4_qpel8_h_lowpass_ ## MMX(halfH, src, 8,       \
+                                                   stride, 9);          \
+    ff_put ## RND ## pixels8_l2_ ## MMX(halfH, src, halfH,              \
+                                        8, stride, 9);                  \
+    ff_ ## OPNAME ## mpeg4_qpel8_v_lowpass_ ## MMX(dst, halfH,          \
+                                                   stride, 8);          \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc32_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t half[8 + 9];                                               \
+    uint8_t *const halfH = (uint8_t *) half;                            \
+    ff_put ## RND ## mpeg4_qpel8_h_lowpass_ ## MMX(halfH, src, 8,       \
+                                                   stride, 9);          \
+    ff_put ## RND ## pixels8_l2_ ## MMX(halfH, src + 1, halfH, 8,       \
+                                        stride, 9);                     \
+    ff_ ## OPNAME ## mpeg4_qpel8_v_lowpass_ ## MMX(dst, halfH,          \
+                                                   stride, 8);          \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel8_mc22_ ## MMX(uint8_t *dst,                  \
+                                         const uint8_t *src,            \
+                                         ptrdiff_t stride)              \
+{                                                                       \
+    uint64_t half[9];                                                   \
+    uint8_t *const halfH = (uint8_t *) half;                            \
+    ff_put ## RND ## mpeg4_qpel8_h_lowpass_ ## MMX(halfH, src, 8,       \
+                                                   stride, 9);          \
+    ff_ ## OPNAME ## mpeg4_qpel8_v_lowpass_ ## MMX(dst, halfH,          \
+                                                   stride, 8);          \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc00_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    ff_ ## OPNAME ## pixels16_ ## MMX(dst, src, stride, 16);            \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc10_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t temp[32];                                                  \
+    uint8_t *const half = (uint8_t *) temp;                             \
+    ff_put ## RND ## mpeg4_qpel16_h_lowpass_ ## MMX(half, src, 16,      \
+                                                    stride, 16);        \
+    ff_ ## OPNAME ## pixels16_l2_ ## MMX(dst, src, half, stride,        \
+                                         stride, 16);                   \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc20_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    ff_ ## OPNAME ## mpeg4_qpel16_h_lowpass_ ## MMX(dst, src,           \
+                                                    stride, stride, 16);\
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc30_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t temp[32];                                                  \
+    uint8_t *const half = (uint8_t*) temp;                              \
+    ff_put ## RND ## mpeg4_qpel16_h_lowpass_ ## MMX(half, src, 16,      \
+                                                    stride, 16);        \
+    ff_ ## OPNAME ## pixels16_l2_ ## MMX(dst, src + 1, half,            \
+                                         stride, stride, 16);           \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc01_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t temp[32];                                                  \
+    uint8_t *const half = (uint8_t *) temp;                             \
+    ff_put ## RND ## mpeg4_qpel16_v_lowpass_ ## MMX(half, src, 16,      \
+                                                    stride);            \
+    ff_ ## OPNAME ## pixels16_l2_ ## MMX(dst, src, half, stride,        \
+                                         stride, 16);                   \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc02_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    ff_ ## OPNAME ## mpeg4_qpel16_v_lowpass_ ## MMX(dst, src,           \
+                                                    stride, stride);    \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc03_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t temp[32];                                                  \
+    uint8_t *const half = (uint8_t *) temp;                             \
+    ff_put ## RND ## mpeg4_qpel16_v_lowpass_ ## MMX(half, src, 16,      \
+                                                    stride);            \
+    ff_ ## OPNAME ## pixels16_l2_ ## MMX(dst, src+stride, half,         \
+                                         stride, stride, 16);           \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc11_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t half[16 * 2 + 17 * 2];                                     \
+    uint8_t *const halfH  = (uint8_t *) half + 256;                     \
+    uint8_t *const halfHV = (uint8_t *) half;                           \
+    ff_put ## RND ## mpeg4_qpel16_h_lowpass_ ## MMX(halfH, src, 16,     \
+                                                    stride, 17);        \
+    ff_put ## RND ## pixels16_l2_ ## MMX(halfH, src, halfH, 16,         \
+                                         stride, 17);                   \
+    ff_put ## RND ## mpeg4_qpel16_v_lowpass_ ## MMX(halfHV, halfH,      \
+                                                    16, 16);            \
+    ff_ ## OPNAME ## pixels16_l2_ ## MMX(dst, halfH, halfHV,            \
+                                         stride, 16, 16);               \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc31_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t half[16 * 2 + 17 * 2];                                     \
+    uint8_t *const halfH  = (uint8_t *) half + 256;                     \
+    uint8_t *const halfHV = (uint8_t *) half;                           \
+    ff_put ## RND ## mpeg4_qpel16_h_lowpass_ ## MMX(halfH, src, 16,     \
+                                                    stride, 17);        \
+    ff_put ## RND ## pixels16_l2_ ## MMX(halfH, src + 1, halfH, 16,     \
+                                         stride, 17);                   \
+    ff_put ## RND ## mpeg4_qpel16_v_lowpass_ ## MMX(halfHV, halfH,      \
+                                                    16, 16);            \
+    ff_ ## OPNAME ## pixels16_l2_ ## MMX(dst, halfH, halfHV,            \
+                                         stride, 16, 16);               \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc13_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t half[16 * 2 + 17 * 2];                                     \
+    uint8_t *const halfH  = (uint8_t *) half + 256;                     \
+    uint8_t *const halfHV = (uint8_t *) half;                           \
+    ff_put ## RND ## mpeg4_qpel16_h_lowpass_ ## MMX(halfH, src, 16,     \
+                                                    stride, 17);        \
+    ff_put ## RND ## pixels16_l2_ ## MMX(halfH, src, halfH, 16,         \
+                                         stride, 17);                   \
+    ff_put ## RND ## mpeg4_qpel16_v_lowpass_ ## MMX(halfHV, halfH,      \
+                                                    16, 16);            \
+    ff_ ## OPNAME ## pixels16_l2_ ## MMX(dst, halfH + 16, halfHV,       \
+                                         stride, 16, 16);               \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc33_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t half[16 * 2 + 17 * 2];                                     \
+    uint8_t *const halfH  = (uint8_t *) half + 256;                     \
+    uint8_t *const halfHV = (uint8_t *) half;                           \
+    ff_put ## RND ## mpeg4_qpel16_h_lowpass_ ## MMX(halfH, src, 16,     \
+                                                    stride, 17);        \
+    ff_put ## RND ## pixels16_l2_ ## MMX(halfH, src + 1, halfH, 16,     \
+                                         stride, 17);                   \
+    ff_put ## RND ## mpeg4_qpel16_v_lowpass_ ## MMX(halfHV, halfH,      \
+                                                    16, 16);            \
+    ff_ ## OPNAME ## pixels16_l2_ ## MMX(dst, halfH + 16, halfHV,       \
+                                         stride, 16, 16);               \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc21_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t half[16 * 2 + 17 * 2];                                     \
+    uint8_t *const halfH  = (uint8_t *) half + 256;                     \
+    uint8_t *const halfHV = (uint8_t *) half;                           \
+    ff_put ## RND ## mpeg4_qpel16_h_lowpass_ ## MMX(halfH, src, 16,     \
+                                                    stride, 17);        \
+    ff_put ## RND ## mpeg4_qpel16_v_lowpass_ ## MMX(halfHV, halfH,      \
+                                                    16, 16);            \
+    ff_ ## OPNAME ## pixels16_l2_ ## MMX(dst, halfH, halfHV,            \
+                                         stride, 16, 16);               \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc23_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t half[16 * 2 + 17 * 2];                                     \
+    uint8_t *const halfH  = (uint8_t *) half + 256;                     \
+    uint8_t *const halfHV = (uint8_t *) half;                           \
+    ff_put ## RND ## mpeg4_qpel16_h_lowpass_ ## MMX(halfH, src, 16,     \
+                                                    stride, 17);        \
+    ff_put ## RND ## mpeg4_qpel16_v_lowpass_ ## MMX(halfHV, halfH,      \
+                                                    16, 16);            \
+    ff_ ## OPNAME ## pixels16_l2_ ## MMX(dst, halfH + 16, halfHV,       \
+                                         stride, 16, 16);               \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc12_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t half[17 * 2];                                              \
+    uint8_t *const halfH = (uint8_t *) half;                            \
+    ff_put ## RND ## mpeg4_qpel16_h_lowpass_ ## MMX(halfH, src, 16,     \
+                                                    stride, 17);        \
+    ff_put ## RND ## pixels16_l2_ ## MMX(halfH, src, halfH, 16,         \
+                                         stride, 17);                   \
+    ff_ ## OPNAME ## mpeg4_qpel16_v_lowpass_ ## MMX(dst, halfH,         \
+                                                    stride, 16);        \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc32_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t half[17 * 2];                                              \
+    uint8_t *const halfH = (uint8_t *) half;                            \
+    ff_put ## RND ## mpeg4_qpel16_h_lowpass_ ## MMX(halfH, src, 16,     \
+                                                    stride, 17);        \
+    ff_put ## RND ## pixels16_l2_ ## MMX(halfH, src + 1, halfH, 16,     \
+                                         stride, 17);                   \
+    ff_ ## OPNAME ## mpeg4_qpel16_v_lowpass_ ## MMX(dst, halfH,         \
+                                                    stride, 16);        \
+}                                                                       \
+                                                                        \
+static void OPNAME ## qpel16_mc22_ ## MMX(uint8_t *dst,                 \
+                                          const uint8_t *src,           \
+                                          ptrdiff_t stride)             \
+{                                                                       \
+    uint64_t half[17 * 2];                                              \
+    uint8_t *const halfH = (uint8_t *) half;                            \
+    ff_put ## RND ## mpeg4_qpel16_h_lowpass_ ## MMX(halfH, src, 16,     \
+                                                    stride, 17);        \
+    ff_ ## OPNAME ## mpeg4_qpel16_v_lowpass_ ## MMX(dst, halfH,         \
+                                                    stride, 16);        \
+}
+
+QPEL_OP(put_,        _,        mmxext)
+QPEL_OP(avg_,        _,        mmxext)
+QPEL_OP(put_no_rnd_, _no_rnd_, mmxext)
+
+#endif /* HAVE_X86ASM */
+
+#define SET_QPEL_FUNCS(PFX, IDX, SIZE, CPU, PREFIX)                          \
+do {                                                                         \
+    c->PFX ## _pixels_tab[IDX][ 0] = PREFIX ## PFX ## SIZE ## _mc00_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 1] = PREFIX ## PFX ## SIZE ## _mc10_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 2] = PREFIX ## PFX ## SIZE ## _mc20_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 3] = PREFIX ## PFX ## SIZE ## _mc30_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 4] = PREFIX ## PFX ## SIZE ## _mc01_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 5] = PREFIX ## PFX ## SIZE ## _mc11_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 6] = PREFIX ## PFX ## SIZE ## _mc21_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 7] = PREFIX ## PFX ## SIZE ## _mc31_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 8] = PREFIX ## PFX ## SIZE ## _mc02_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][ 9] = PREFIX ## PFX ## SIZE ## _mc12_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][10] = PREFIX ## PFX ## SIZE ## _mc22_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][11] = PREFIX ## PFX ## SIZE ## _mc32_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][12] = PREFIX ## PFX ## SIZE ## _mc03_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][13] = PREFIX ## PFX ## SIZE ## _mc13_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][14] = PREFIX ## PFX ## SIZE ## _mc23_ ## CPU; \
+    c->PFX ## _pixels_tab[IDX][15] = PREFIX ## PFX ## SIZE ## _mc33_ ## CPU; \
+} while (0)
+
+av_cold void ff_qpeldsp_init_x86(QpelDSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (X86_MMXEXT(cpu_flags)) {
+#if HAVE_MMXEXT_EXTERNAL
+        SET_QPEL_FUNCS(avg_qpel,        0, 16, mmxext, );
+        SET_QPEL_FUNCS(avg_qpel,        1,  8, mmxext, );
+
+        SET_QPEL_FUNCS(put_qpel,        0, 16, mmxext, );
+        SET_QPEL_FUNCS(put_qpel,        1,  8, mmxext, );
+        SET_QPEL_FUNCS(put_no_rnd_qpel, 0, 16, mmxext, );
+        SET_QPEL_FUNCS(put_no_rnd_qpel, 1,  8, mmxext, );
+#endif /* HAVE_MMXEXT_EXTERNAL */
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/rnd_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/rnd_template.c
new file mode 100644
index 000000000..09946bd23
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/rnd_template.c
@@ -0,0 +1,175 @@
+/*
+ * SIMD-optimized halfpel functions are compiled twice for rnd/no_rnd
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2003-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
+ * mostly rewritten by Michael Niedermayer <michaelni@gmx.at>
+ * and improved by Zdenek Kabelac <kabi@users.sf.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "inline_asm.h"
+
+// put_pixels
+av_unused STATIC void DEF(put, pixels8_xy2)(uint8_t *block, const uint8_t *pixels,
+                                  ptrdiff_t line_size, int h)
+{
+    MOVQ_ZERO(mm7);
+    SET_RND(mm6); // =2 for rnd  and  =1 for no_rnd version
+    __asm__ volatile(
+        "movq   (%1), %%mm0             \n\t"
+        "movq   1(%1), %%mm4            \n\t"
+        "movq   %%mm0, %%mm1            \n\t"
+        "movq   %%mm4, %%mm5            \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpcklbw %%mm7, %%mm4         \n\t"
+        "punpckhbw %%mm7, %%mm1         \n\t"
+        "punpckhbw %%mm7, %%mm5         \n\t"
+        "paddusw %%mm0, %%mm4           \n\t"
+        "paddusw %%mm1, %%mm5           \n\t"
+        "xor    %%"FF_REG_a", %%"FF_REG_a" \n\t"
+        "add    %3, %1                  \n\t"
+        ".p2align 3                     \n\t"
+        "1:                             \n\t"
+        "movq   (%1, %%"FF_REG_a"), %%mm0  \n\t"
+        "movq   1(%1, %%"FF_REG_a"), %%mm2 \n\t"
+        "movq   %%mm0, %%mm1            \n\t"
+        "movq   %%mm2, %%mm3            \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpcklbw %%mm7, %%mm2         \n\t"
+        "punpckhbw %%mm7, %%mm1         \n\t"
+        "punpckhbw %%mm7, %%mm3         \n\t"
+        "paddusw %%mm2, %%mm0           \n\t"
+        "paddusw %%mm3, %%mm1           \n\t"
+        "paddusw %%mm6, %%mm4           \n\t"
+        "paddusw %%mm6, %%mm5           \n\t"
+        "paddusw %%mm0, %%mm4           \n\t"
+        "paddusw %%mm1, %%mm5           \n\t"
+        "psrlw  $2, %%mm4               \n\t"
+        "psrlw  $2, %%mm5               \n\t"
+        "packuswb  %%mm5, %%mm4         \n\t"
+        "movq   %%mm4, (%2, %%"FF_REG_a")  \n\t"
+        "add    %3, %%"FF_REG_a"           \n\t"
+
+        "movq   (%1, %%"FF_REG_a"), %%mm2  \n\t" // 0 <-> 2   1 <-> 3
+        "movq   1(%1, %%"FF_REG_a"), %%mm4 \n\t"
+        "movq   %%mm2, %%mm3            \n\t"
+        "movq   %%mm4, %%mm5            \n\t"
+        "punpcklbw %%mm7, %%mm2         \n\t"
+        "punpcklbw %%mm7, %%mm4         \n\t"
+        "punpckhbw %%mm7, %%mm3         \n\t"
+        "punpckhbw %%mm7, %%mm5         \n\t"
+        "paddusw %%mm2, %%mm4           \n\t"
+        "paddusw %%mm3, %%mm5           \n\t"
+        "paddusw %%mm6, %%mm0           \n\t"
+        "paddusw %%mm6, %%mm1           \n\t"
+        "paddusw %%mm4, %%mm0           \n\t"
+        "paddusw %%mm5, %%mm1           \n\t"
+        "psrlw  $2, %%mm0               \n\t"
+        "psrlw  $2, %%mm1               \n\t"
+        "packuswb  %%mm1, %%mm0         \n\t"
+        "movq   %%mm0, (%2, %%"FF_REG_a")  \n\t"
+        "add    %3, %%"FF_REG_a"        \n\t"
+
+        "subl   $2, %0                  \n\t"
+        "jnz    1b                      \n\t"
+        :"+g"(h), "+S"(pixels)
+        :"D"(block), "r"((x86_reg)line_size)
+        :FF_REG_a, "memory");
+}
+
+// avg_pixels
+// this routine is 'slightly' suboptimal but mostly unused
+av_unused STATIC void DEF(avg, pixels8_xy2)(uint8_t *block, const uint8_t *pixels,
+                                  ptrdiff_t line_size, int h)
+{
+    MOVQ_ZERO(mm7);
+    SET_RND(mm6); // =2 for rnd  and  =1 for no_rnd version
+    __asm__ volatile(
+        "movq   (%1), %%mm0             \n\t"
+        "movq   1(%1), %%mm4            \n\t"
+        "movq   %%mm0, %%mm1            \n\t"
+        "movq   %%mm4, %%mm5            \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpcklbw %%mm7, %%mm4         \n\t"
+        "punpckhbw %%mm7, %%mm1         \n\t"
+        "punpckhbw %%mm7, %%mm5         \n\t"
+        "paddusw %%mm0, %%mm4           \n\t"
+        "paddusw %%mm1, %%mm5           \n\t"
+        "xor    %%"FF_REG_a", %%"FF_REG_a" \n\t"
+        "add    %3, %1                  \n\t"
+        ".p2align 3                     \n\t"
+        "1:                             \n\t"
+        "movq   (%1, %%"FF_REG_a"), %%mm0  \n\t"
+        "movq   1(%1, %%"FF_REG_a"), %%mm2 \n\t"
+        "movq   %%mm0, %%mm1            \n\t"
+        "movq   %%mm2, %%mm3            \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpcklbw %%mm7, %%mm2         \n\t"
+        "punpckhbw %%mm7, %%mm1         \n\t"
+        "punpckhbw %%mm7, %%mm3         \n\t"
+        "paddusw %%mm2, %%mm0           \n\t"
+        "paddusw %%mm3, %%mm1           \n\t"
+        "paddusw %%mm6, %%mm4           \n\t"
+        "paddusw %%mm6, %%mm5           \n\t"
+        "paddusw %%mm0, %%mm4           \n\t"
+        "paddusw %%mm1, %%mm5           \n\t"
+        "psrlw  $2, %%mm4               \n\t"
+        "psrlw  $2, %%mm5               \n\t"
+                "movq   (%2, %%"FF_REG_a"), %%mm3  \n\t"
+        "packuswb  %%mm5, %%mm4         \n\t"
+                "pcmpeqd %%mm2, %%mm2   \n\t"
+                "paddb %%mm2, %%mm2     \n\t"
+                PAVGB_MMX(%%mm3, %%mm4, %%mm5, %%mm2)
+                "movq   %%mm5, (%2, %%"FF_REG_a")  \n\t"
+        "add    %3, %%"FF_REG_a"        \n\t"
+
+        "movq   (%1, %%"FF_REG_a"), %%mm2  \n\t" // 0 <-> 2   1 <-> 3
+        "movq   1(%1, %%"FF_REG_a"), %%mm4 \n\t"
+        "movq   %%mm2, %%mm3            \n\t"
+        "movq   %%mm4, %%mm5            \n\t"
+        "punpcklbw %%mm7, %%mm2         \n\t"
+        "punpcklbw %%mm7, %%mm4         \n\t"
+        "punpckhbw %%mm7, %%mm3         \n\t"
+        "punpckhbw %%mm7, %%mm5         \n\t"
+        "paddusw %%mm2, %%mm4           \n\t"
+        "paddusw %%mm3, %%mm5           \n\t"
+        "paddusw %%mm6, %%mm0           \n\t"
+        "paddusw %%mm6, %%mm1           \n\t"
+        "paddusw %%mm4, %%mm0           \n\t"
+        "paddusw %%mm5, %%mm1           \n\t"
+        "psrlw  $2, %%mm0               \n\t"
+        "psrlw  $2, %%mm1               \n\t"
+                "movq   (%2, %%"FF_REG_a"), %%mm3  \n\t"
+        "packuswb  %%mm1, %%mm0         \n\t"
+                "pcmpeqd %%mm2, %%mm2   \n\t"
+                "paddb %%mm2, %%mm2     \n\t"
+                PAVGB_MMX(%%mm3, %%mm0, %%mm1, %%mm2)
+                "movq   %%mm1, (%2, %%"FF_REG_a")  \n\t"
+        "add    %3, %%"FF_REG_a"           \n\t"
+
+        "subl   $2, %0                  \n\t"
+        "jnz    1b                      \n\t"
+        :"+g"(h), "+S"(pixels)
+        :"D"(block), "r"((x86_reg)line_size)
+        :FF_REG_a, "memory");
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/rv34dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/rv34dsp_init.c
new file mode 100644
index 000000000..731012245
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/rv34dsp_init.c
@@ -0,0 +1,48 @@
+/*
+ * RV30/40 MMX/SSE2 optimizations
+ * Copyright (C) 2012 Christophe Gisquet <christophe.gisquet@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/rv34dsp.h"
+
+void ff_rv34_idct_dc_mmxext(int16_t *block);
+void ff_rv34_idct_dc_noround_mmxext(int16_t *block);
+void ff_rv34_idct_dc_add_mmx(uint8_t *dst, ptrdiff_t stride, int dc);
+void ff_rv34_idct_dc_add_sse2(uint8_t *dst, ptrdiff_t stride, int dc);
+void ff_rv34_idct_dc_add_sse4(uint8_t *dst, ptrdiff_t stride, int dc);
+void ff_rv34_idct_add_mmxext(uint8_t *dst, ptrdiff_t stride, int16_t *block);
+
+av_cold void ff_rv34dsp_init_x86(RV34DSPContext* c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags))
+        c->rv34_idct_dc_add = ff_rv34_idct_dc_add_mmx;
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        c->rv34_inv_transform_dc = ff_rv34_idct_dc_noround_mmxext;
+        c->rv34_idct_add         = ff_rv34_idct_add_mmxext;
+    }
+    if (EXTERNAL_SSE2(cpu_flags))
+        c->rv34_idct_dc_add = ff_rv34_idct_dc_add_sse2;
+    if (EXTERNAL_SSE4(cpu_flags))
+        c->rv34_idct_dc_add = ff_rv34_idct_dc_add_sse4;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/rv40dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/rv40dsp_init.c
new file mode 100644
index 000000000..b57a3fc31
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/rv40dsp_init.c
@@ -0,0 +1,278 @@
+/*
+ * RV40 decoder motion compensation functions x86-optimised
+ * Copyright (c) 2008 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * RV40 decoder motion compensation functions x86-optimised
+ * 2,0 and 0,2 have h264 equivalents.
+ * 3,3 is bugged in the rv40 format and maps to _xy2 version
+ */
+
+#include "libavcodec/rv34dsp.h"
+#include "libavutil/attributes.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/cpu.h"
+#include "hpeldsp.h"
+
+#define DEFINE_FN(op, size, insn) \
+static void op##_rv40_qpel##size##_mc33_##insn(uint8_t *dst, const uint8_t *src, \
+                                               ptrdiff_t stride) \
+{ \
+    ff_##op##_pixels##size##_xy2_##insn(dst, src, stride, size); \
+}
+
+#if HAVE_X86ASM
+void ff_put_rv40_chroma_mc8_mmx  (uint8_t *dst, uint8_t *src,
+                                  ptrdiff_t stride, int h, int x, int y);
+void ff_avg_rv40_chroma_mc8_mmxext(uint8_t *dst, uint8_t *src,
+                                   ptrdiff_t stride, int h, int x, int y);
+void ff_avg_rv40_chroma_mc8_3dnow(uint8_t *dst, uint8_t *src,
+                                  ptrdiff_t stride, int h, int x, int y);
+
+void ff_put_rv40_chroma_mc4_mmx  (uint8_t *dst, uint8_t *src,
+                                  ptrdiff_t stride, int h, int x, int y);
+void ff_avg_rv40_chroma_mc4_mmxext(uint8_t *dst, uint8_t *src,
+                                   ptrdiff_t stride, int h, int x, int y);
+void ff_avg_rv40_chroma_mc4_3dnow(uint8_t *dst, uint8_t *src,
+                                  ptrdiff_t stride, int h, int x, int y);
+
+#define DECLARE_WEIGHT(opt) \
+void ff_rv40_weight_func_rnd_16_##opt(uint8_t *dst, uint8_t *src1, uint8_t *src2, \
+                                      int w1, int w2, ptrdiff_t stride); \
+void ff_rv40_weight_func_rnd_8_##opt (uint8_t *dst, uint8_t *src1, uint8_t *src2, \
+                                      int w1, int w2, ptrdiff_t stride); \
+void ff_rv40_weight_func_nornd_16_##opt(uint8_t *dst, uint8_t *src1, uint8_t *src2, \
+                                        int w1, int w2, ptrdiff_t stride); \
+void ff_rv40_weight_func_nornd_8_##opt (uint8_t *dst, uint8_t *src1, uint8_t *src2, \
+                                        int w1, int w2, ptrdiff_t stride);
+DECLARE_WEIGHT(mmxext)
+DECLARE_WEIGHT(sse2)
+DECLARE_WEIGHT(ssse3)
+
+/** @{ */
+/**
+ * Define one qpel function.
+ * LOOPSIZE must be already set to the number of pixels processed per
+ * iteration in the inner loop of the called functions.
+ * COFF(x) must be already defined so as to provide the offset into any
+ * array of coeffs used by the called function for the qpel position x.
+ */
+#define QPEL_FUNC_DECL(OP, SIZE, PH, PV, OPT)                           \
+static void OP ## rv40_qpel ##SIZE ##_mc ##PH ##PV ##OPT(uint8_t *dst,  \
+                                                         const uint8_t *src, \
+                                                         ptrdiff_t stride)  \
+{                                                                       \
+    int i;                                                              \
+    if (PH && PV) {                                                     \
+        LOCAL_ALIGNED(16, uint8_t, tmp, [SIZE * (SIZE + 5)]);           \
+        uint8_t *tmpptr = tmp + SIZE * 2;                               \
+        src -= stride * 2;                                              \
+                                                                        \
+        for (i = 0; i < SIZE; i += LOOPSIZE)                            \
+            ff_put_rv40_qpel_h ##OPT(tmp + i, SIZE, src + i, stride,    \
+                                     SIZE + 5, HCOFF(PH));              \
+        for (i = 0; i < SIZE; i += LOOPSIZE)                            \
+            ff_ ##OP ##rv40_qpel_v ##OPT(dst + i, stride, tmpptr + i,   \
+                                         SIZE, SIZE, VCOFF(PV));        \
+    } else if (PV) {                                                    \
+        for (i = 0; i < SIZE; i += LOOPSIZE)                            \
+            ff_ ##OP ##rv40_qpel_v ## OPT(dst + i, stride, src + i,     \
+                                          stride, SIZE, VCOFF(PV));     \
+    } else {                                                            \
+        for (i = 0; i < SIZE; i += LOOPSIZE)                            \
+            ff_ ##OP ##rv40_qpel_h ## OPT(dst + i, stride, src + i,     \
+                                          stride, SIZE, HCOFF(PH));     \
+    }                                                                   \
+}
+
+/** Declare functions for sizes 8 and 16 and given operations
+ *  and qpel position. */
+#define QPEL_FUNCS_DECL(OP, PH, PV, OPT) \
+    QPEL_FUNC_DECL(OP,  8, PH, PV, OPT)  \
+    QPEL_FUNC_DECL(OP, 16, PH, PV, OPT)
+
+/** Declare all functions for all sizes and qpel positions */
+#define QPEL_MC_DECL(OP, OPT)                                           \
+void ff_ ##OP ##rv40_qpel_h ##OPT(uint8_t *dst, ptrdiff_t dstStride,    \
+                                  const uint8_t *src,                   \
+                                  ptrdiff_t srcStride,                  \
+                                  int len, int m);                      \
+void ff_ ##OP ##rv40_qpel_v ##OPT(uint8_t *dst, ptrdiff_t dstStride,    \
+                                  const uint8_t *src,                   \
+                                  ptrdiff_t srcStride,                  \
+                                  int len, int m);                      \
+QPEL_FUNCS_DECL(OP, 0, 1, OPT)                                          \
+QPEL_FUNCS_DECL(OP, 0, 3, OPT)                                          \
+QPEL_FUNCS_DECL(OP, 1, 0, OPT)                                          \
+QPEL_FUNCS_DECL(OP, 1, 1, OPT)                                          \
+QPEL_FUNCS_DECL(OP, 1, 2, OPT)                                          \
+QPEL_FUNCS_DECL(OP, 1, 3, OPT)                                          \
+QPEL_FUNCS_DECL(OP, 2, 1, OPT)                                          \
+QPEL_FUNCS_DECL(OP, 2, 2, OPT)                                          \
+QPEL_FUNCS_DECL(OP, 2, 3, OPT)                                          \
+QPEL_FUNCS_DECL(OP, 3, 0, OPT)                                          \
+QPEL_FUNCS_DECL(OP, 3, 1, OPT)                                          \
+QPEL_FUNCS_DECL(OP, 3, 2, OPT)
+/** @} */
+
+#define LOOPSIZE  8
+#define HCOFF(x)  (32 * ((x) - 1))
+#define VCOFF(x)  (32 * ((x) - 1))
+QPEL_MC_DECL(put_, _ssse3)
+QPEL_MC_DECL(avg_, _ssse3)
+
+#undef LOOPSIZE
+#undef HCOFF
+#undef VCOFF
+#define LOOPSIZE  8
+#define HCOFF(x)  (64 * ((x) - 1))
+#define VCOFF(x)  (64 * ((x) - 1))
+QPEL_MC_DECL(put_, _sse2)
+QPEL_MC_DECL(avg_, _sse2)
+
+#if ARCH_X86_32
+#undef LOOPSIZE
+#undef HCOFF
+#undef VCOFF
+#define LOOPSIZE  4
+#define HCOFF(x)  (64 * ((x) - 1))
+#define VCOFF(x)  (64 * ((x) - 1))
+
+QPEL_MC_DECL(put_, _mmx)
+
+#define ff_put_rv40_qpel_h_mmxext  ff_put_rv40_qpel_h_mmx
+#define ff_put_rv40_qpel_v_mmxext  ff_put_rv40_qpel_v_mmx
+QPEL_MC_DECL(avg_, _mmxext)
+
+#define ff_put_rv40_qpel_h_3dnow  ff_put_rv40_qpel_h_mmx
+#define ff_put_rv40_qpel_v_3dnow  ff_put_rv40_qpel_v_mmx
+QPEL_MC_DECL(avg_, _3dnow)
+#endif
+
+/** @{ */
+/** Set one function */
+#define QPEL_FUNC_SET(OP, SIZE, PH, PV, OPT)                            \
+    c-> OP ## pixels_tab[2 - SIZE / 8][4 * PV + PH] = OP ## rv40_qpel ##SIZE ## _mc ##PH ##PV ##OPT;
+
+/** Set functions put and avg for sizes 8 and 16 and a given qpel position */
+#define QPEL_FUNCS_SET(OP, PH, PV, OPT)         \
+    QPEL_FUNC_SET(OP,  8, PH, PV, OPT)          \
+    QPEL_FUNC_SET(OP, 16, PH, PV, OPT)
+
+/** Set all functions for all sizes and qpel positions */
+#define QPEL_MC_SET(OP, OPT)   \
+QPEL_FUNCS_SET (OP, 0, 1, OPT) \
+QPEL_FUNCS_SET (OP, 0, 3, OPT) \
+QPEL_FUNCS_SET (OP, 1, 0, OPT) \
+QPEL_FUNCS_SET (OP, 1, 1, OPT) \
+QPEL_FUNCS_SET (OP, 1, 2, OPT) \
+QPEL_FUNCS_SET (OP, 1, 3, OPT) \
+QPEL_FUNCS_SET (OP, 2, 1, OPT) \
+QPEL_FUNCS_SET (OP, 2, 2, OPT) \
+QPEL_FUNCS_SET (OP, 2, 3, OPT) \
+QPEL_FUNCS_SET (OP, 3, 0, OPT) \
+QPEL_FUNCS_SET (OP, 3, 1, OPT) \
+QPEL_FUNCS_SET (OP, 3, 2, OPT)
+/** @} */
+
+DEFINE_FN(put, 8, ssse3)
+
+DEFINE_FN(put, 16, sse2)
+DEFINE_FN(put, 16, ssse3)
+
+DEFINE_FN(avg, 8, mmxext)
+DEFINE_FN(avg, 8, ssse3)
+
+DEFINE_FN(avg, 16, sse2)
+DEFINE_FN(avg, 16, ssse3)
+#endif /* HAVE_X86ASM */
+
+#if HAVE_MMX_INLINE
+DEFINE_FN(put, 8, mmx)
+DEFINE_FN(avg, 8, mmx)
+DEFINE_FN(put, 16, mmx)
+DEFINE_FN(avg, 16, mmx)
+#endif
+
+av_cold void ff_rv40dsp_init_x86(RV34DSPContext *c)
+{
+    av_unused int cpu_flags = av_get_cpu_flags();
+
+#if HAVE_MMX_INLINE
+    if (INLINE_MMX(cpu_flags)) {
+        c->put_pixels_tab[0][15] = put_rv40_qpel16_mc33_mmx;
+        c->put_pixels_tab[1][15] = put_rv40_qpel8_mc33_mmx;
+        c->avg_pixels_tab[0][15] = avg_rv40_qpel16_mc33_mmx;
+        c->avg_pixels_tab[1][15] = avg_rv40_qpel8_mc33_mmx;
+    }
+#endif /* HAVE_MMX_INLINE */
+
+#if HAVE_X86ASM
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->put_chroma_pixels_tab[0] = ff_put_rv40_chroma_mc8_mmx;
+        c->put_chroma_pixels_tab[1] = ff_put_rv40_chroma_mc4_mmx;
+#if ARCH_X86_32
+        QPEL_MC_SET(put_, _mmx)
+#endif
+    }
+    if (EXTERNAL_AMD3DNOW(cpu_flags)) {
+        c->avg_chroma_pixels_tab[0] = ff_avg_rv40_chroma_mc8_3dnow;
+        c->avg_chroma_pixels_tab[1] = ff_avg_rv40_chroma_mc4_3dnow;
+#if ARCH_X86_32
+        QPEL_MC_SET(avg_, _3dnow)
+#endif
+    }
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        c->avg_pixels_tab[1][15]        = avg_rv40_qpel8_mc33_mmxext;
+        c->avg_chroma_pixels_tab[0]     = ff_avg_rv40_chroma_mc8_mmxext;
+        c->avg_chroma_pixels_tab[1]     = ff_avg_rv40_chroma_mc4_mmxext;
+        c->rv40_weight_pixels_tab[0][0] = ff_rv40_weight_func_rnd_16_mmxext;
+        c->rv40_weight_pixels_tab[0][1] = ff_rv40_weight_func_rnd_8_mmxext;
+        c->rv40_weight_pixels_tab[1][0] = ff_rv40_weight_func_nornd_16_mmxext;
+        c->rv40_weight_pixels_tab[1][1] = ff_rv40_weight_func_nornd_8_mmxext;
+#if ARCH_X86_32
+        QPEL_MC_SET(avg_, _mmxext)
+#endif
+    }
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->put_pixels_tab[0][15]        = put_rv40_qpel16_mc33_sse2;
+        c->avg_pixels_tab[0][15]        = avg_rv40_qpel16_mc33_sse2;
+        c->rv40_weight_pixels_tab[0][0] = ff_rv40_weight_func_rnd_16_sse2;
+        c->rv40_weight_pixels_tab[0][1] = ff_rv40_weight_func_rnd_8_sse2;
+        c->rv40_weight_pixels_tab[1][0] = ff_rv40_weight_func_nornd_16_sse2;
+        c->rv40_weight_pixels_tab[1][1] = ff_rv40_weight_func_nornd_8_sse2;
+        QPEL_MC_SET(put_, _sse2)
+        QPEL_MC_SET(avg_, _sse2)
+    }
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        c->put_pixels_tab[0][15]        = put_rv40_qpel16_mc33_ssse3;
+        c->put_pixels_tab[1][15]        = put_rv40_qpel8_mc33_ssse3;
+        c->avg_pixels_tab[0][15]        = avg_rv40_qpel16_mc33_ssse3;
+        c->avg_pixels_tab[1][15]        = avg_rv40_qpel8_mc33_ssse3;
+        c->rv40_weight_pixels_tab[0][0] = ff_rv40_weight_func_rnd_16_ssse3;
+        c->rv40_weight_pixels_tab[0][1] = ff_rv40_weight_func_rnd_8_ssse3;
+        c->rv40_weight_pixels_tab[1][0] = ff_rv40_weight_func_nornd_16_ssse3;
+        c->rv40_weight_pixels_tab[1][1] = ff_rv40_weight_func_nornd_8_ssse3;
+        QPEL_MC_SET(put_, _ssse3)
+        QPEL_MC_SET(avg_, _ssse3)
+    }
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/sbcdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/sbcdsp_init.c
new file mode 100644
index 000000000..86effecfd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/sbcdsp_init.c
@@ -0,0 +1,51 @@
+/*
+ * Bluetooth low-complexity, subband codec (SBC)
+ *
+ * Copyright (C) 2017  Aurelien Jacobs <aurel@gnuage.org>
+ * Copyright (C) 2008-2010  Nokia Corporation
+ * Copyright (C) 2004-2010  Marcel Holtmann <marcel@holtmann.org>
+ * Copyright (C) 2004-2005  Henryk Ploetz <henryk@ploetzli.ch>
+ * Copyright (C) 2005-2006  Brad Midgley <bmidgley@xmission.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * SBC MMX optimization for some basic "building bricks"
+ */
+
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/sbcdsp.h"
+
+void ff_sbc_analyze_4_mmx(const int16_t *in, int32_t *out, const int16_t *consts);
+void ff_sbc_analyze_8_mmx(const int16_t *in, int32_t *out, const int16_t *consts);
+void ff_sbc_calc_scalefactors_mmx(int32_t sb_sample_f[16][2][8],
+                                  uint32_t scale_factor[2][8],
+                                  int blocks, int channels, int subbands);
+
+av_cold void ff_sbcdsp_init_x86(SBCDSPContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        s->sbc_analyze_4 = ff_sbc_analyze_4_mmx;
+        s->sbc_analyze_8 = ff_sbc_analyze_8_mmx;
+        s->sbc_calc_scalefactors = ff_sbc_calc_scalefactors_mmx;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/sbrdsp.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/sbrdsp.asm
new file mode 100644
index 000000000..62bbe512e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/sbrdsp.asm
@@ -0,0 +1,548 @@
+;******************************************************************************
+;* AAC Spectral Band Replication decoding functions
+;* Copyright (C) 2012 Christophe Gisquet <christophe.gisquet@gmail.com>
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION_RODATA
+; mask equivalent for multiply by -1.0 1.0
+ps_mask         times 2 dd 1<<31, 0
+ps_mask2        times 2 dd 0, 1<<31
+ps_mask3        dd  0, 0, 0, 1<<31
+ps_noise0       times 2 dd  1.0,  0.0,
+ps_noise2       times 2 dd -1.0,  0.0
+ps_noise13      dd  0.0,  1.0, 0.0, -1.0
+                dd  0.0, -1.0, 0.0,  1.0
+                dd  0.0,  1.0, 0.0, -1.0
+cextern         sbr_noise_table
+cextern         ps_neg
+
+SECTION .text
+
+INIT_XMM sse
+cglobal sbr_sum_square, 2, 3, 6
+    mov        r2d, r1d
+    xorps       m0, m0
+    xorps       m1, m1
+    sar         r2, 3
+    jz          .prepare
+.loop:
+    movu        m2, [r0 +  0]
+    movu        m3, [r0 + 16]
+    movu        m4, [r0 + 32]
+    movu        m5, [r0 + 48]
+    mulps       m2, m2
+    mulps       m3, m3
+    mulps       m4, m4
+    mulps       m5, m5
+    addps       m0, m2
+    addps       m1, m3
+    addps       m0, m4
+    addps       m1, m5
+    add         r0, 64
+    dec         r2
+    jnz         .loop
+.prepare:
+    and         r1, 7
+    sar         r1, 1
+    jz          .end
+; len is a multiple of 2, thus there are at least 4 elements to process
+.endloop:
+    movu        m2, [r0]
+    add         r0, 16
+    mulps       m2, m2
+    dec         r1
+    addps       m0, m2
+    jnz         .endloop
+.end:
+    addps       m0, m1
+    movhlps     m2, m0
+    addps       m0, m2
+    movss       m1, m0
+    shufps      m0, m0, 1
+    addss       m0, m1
+%if ARCH_X86_64 == 0
+    movss       r0m,  m0
+    fld         dword r0m
+%endif
+    RET
+
+%define STEP  40*4*2
+cglobal sbr_hf_g_filt, 5, 6, 5
+    lea         r1, [r1 + 8*r4] ; offset by ixh elements into X_high
+    mov         r5, r3
+    and         r3, 0xFC
+    lea         r2, [r2 + r3*4]
+    lea         r0, [r0 + r3*8]
+    neg         r3
+    jz          .loop1
+.loop4:
+    movlps      m0, [r2 + 4*r3 + 0]
+    movlps      m1, [r2 + 4*r3 + 8]
+    movlps      m2, [r1 + 0*STEP]
+    movlps      m3, [r1 + 2*STEP]
+    movhps      m2, [r1 + 1*STEP]
+    movhps      m3, [r1 + 3*STEP]
+    unpcklps    m0, m0
+    unpcklps    m1, m1
+    mulps       m0, m2
+    mulps       m1, m3
+    movu        [r0 + 8*r3 +  0], m0
+    movu        [r0 + 8*r3 + 16], m1
+    add         r1, 4*STEP
+    add         r3, 4
+    jnz         .loop4
+    and         r5, 3 ; number of single element loops
+    jz          .end
+.loop1: ; element 0 and 1 can be computed at the same time
+    movss       m0, [r2]
+    movlps      m2, [r1]
+    unpcklps    m0, m0
+    mulps       m2, m0
+    movlps    [r0], m2
+    add         r0, 8
+    add         r2, 4
+    add         r1, STEP
+    dec         r5
+    jnz         .loop1
+.end:
+    RET
+
+; void ff_sbr_hf_gen_sse(float (*X_high)[2], const float (*X_low)[2],
+;                        const float alpha0[2], const float alpha1[2],
+;                        float bw, int start, int end)
+;
+cglobal sbr_hf_gen, 4,4,8, X_high, X_low, alpha0, alpha1, BW, S, E
+    ; load alpha factors
+%define bw m0
+%if ARCH_X86_64 == 0 || WIN64
+    movss      bw, BWm
+%endif
+    movlps     m2, [alpha1q]
+    movlps     m1, [alpha0q]
+    shufps     bw, bw, 0
+    mulps      m2, bw             ; (a1[0] a1[1])*bw
+    mulps      m1, bw             ; (a0[0] a0[1])*bw    = (a2 a3)
+    mulps      m2, bw             ; (a1[0] a1[1])*bw*bw = (a0 a1)
+    mova       m3, m1
+    mova       m4, m2
+
+    ; Set pointers
+%if ARCH_X86_64 == 0 || WIN64
+    ; start and end 6th and 7th args on stack
+    mov        r2d, Sm
+    mov        r3d, Em
+    DEFINE_ARGS X_high, X_low, start, end
+%else
+; BW does not actually occupy a register, so shift by 1
+    DEFINE_ARGS X_high, X_low, alpha0, alpha1, start, end
+    movsxd  startq, startd
+    movsxd    endq, endd
+%endif
+    sub     startq, endq         ; neg num of loops
+    lea    X_highq, [X_highq + endq*2*4]
+    lea     X_lowq, [X_lowq  + endq*2*4 - 2*2*4]
+    shl     startq, 3            ; offset from num loops
+
+    mova        m0, [X_lowq + startq]
+    shufps      m3, m3, q1111
+    shufps      m4, m4, q1111
+    xorps       m3, [ps_mask]
+    shufps      m1, m1, q0000
+    shufps      m2, m2, q0000
+    xorps       m4, [ps_mask]
+.loop2:
+    movu        m7, [X_lowq + startq + 8]       ; BbCc
+    mova        m6, m0
+    mova        m5, m7
+    shufps      m0, m0, q2301                   ; aAbB
+    shufps      m7, m7, q2301                   ; bBcC
+    mulps       m0, m4
+    mulps       m7, m3
+    mulps       m6, m2
+    mulps       m5, m1
+    addps       m7, m0
+    mova        m0, [X_lowq + startq + 16]      ; CcDd
+    addps       m7, m0
+    addps       m6, m5
+    addps       m7, m6
+    mova  [X_highq + startq], m7
+    add     startq, 16
+    jnz         .loop2
+    RET
+
+cglobal sbr_sum64x5, 1,2,4,z
+    lea    r1q, [zq+ 256]
+.loop:
+    mova    m0, [zq+   0]
+    mova    m2, [zq+  16]
+    mova    m1, [zq+ 256]
+    mova    m3, [zq+ 272]
+    addps   m0, [zq+ 512]
+    addps   m2, [zq+ 528]
+    addps   m1, [zq+ 768]
+    addps   m3, [zq+ 784]
+    addps   m0, [zq+1024]
+    addps   m2, [zq+1040]
+    addps   m0, m1
+    addps   m2, m3
+    mova  [zq], m0
+    mova  [zq+16], m2
+    add     zq, 32
+    cmp     zq, r1q
+    jne  .loop
+    REP_RET
+
+INIT_XMM sse
+cglobal sbr_qmf_post_shuffle, 2,3,4,W,z
+    lea              r2q, [zq + (64-4)*4]
+    mova              m3, [ps_neg]
+.loop:
+    mova              m1, [zq]
+    xorps             m0, m3, [r2q]
+    shufps            m0, m0, m0, q0123
+    unpcklps          m2, m0, m1
+    unpckhps          m0, m0, m1
+    mova       [Wq +  0], m2
+    mova       [Wq + 16], m0
+    add               Wq, 32
+    sub              r2q, 16
+    add               zq, 16
+    cmp               zq, r2q
+    jl             .loop
+    REP_RET
+
+INIT_XMM sse
+cglobal sbr_neg_odd_64, 1,2,4,z
+    lea        r1q, [zq+256]
+.loop:
+    mova        m0, [zq+ 0]
+    mova        m1, [zq+16]
+    mova        m2, [zq+32]
+    mova        m3, [zq+48]
+    xorps       m0, [ps_mask2]
+    xorps       m1, [ps_mask2]
+    xorps       m2, [ps_mask2]
+    xorps       m3, [ps_mask2]
+    mova   [zq+ 0], m0
+    mova   [zq+16], m1
+    mova   [zq+32], m2
+    mova   [zq+48], m3
+    add         zq, 64
+    cmp         zq, r1q
+    jne      .loop
+    REP_RET
+
+; void ff_sbr_qmf_deint_bfly_sse2(float *v, const float *src0, const float *src1)
+%macro SBR_QMF_DEINT_BFLY  0
+cglobal sbr_qmf_deint_bfly, 3,5,8, v,src0,src1,vrev,c
+    mov               cq, 64*4-2*mmsize
+    lea            vrevq, [vq + 64*4]
+.loop:
+    mova              m0, [src0q+cq]
+    mova              m1, [src1q]
+    mova              m4, [src0q+cq+mmsize]
+    mova              m5, [src1q+mmsize]
+%if cpuflag(sse2)
+    pshufd            m2, m0, q0123
+    pshufd            m3, m1, q0123
+    pshufd            m6, m4, q0123
+    pshufd            m7, m5, q0123
+%else
+    shufps            m2, m0, m0, q0123
+    shufps            m3, m1, m1, q0123
+    shufps            m6, m4, m4, q0123
+    shufps            m7, m5, m5, q0123
+%endif
+    addps             m5, m2
+    subps             m0, m7
+    addps             m1, m6
+    subps             m4, m3
+    mova         [vrevq], m1
+    mova  [vrevq+mmsize], m5
+    mova         [vq+cq], m0
+    mova  [vq+cq+mmsize], m4
+    add            src1q, 2*mmsize
+    add            vrevq, 2*mmsize
+    sub               cq, 2*mmsize
+    jge            .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+SBR_QMF_DEINT_BFLY
+
+INIT_XMM sse2
+SBR_QMF_DEINT_BFLY
+
+INIT_XMM sse2
+cglobal sbr_qmf_pre_shuffle, 1,4,6,z
+%define OFFSET  (32*4-2*mmsize)
+    mov       r3q, OFFSET
+    lea       r1q, [zq + (32+1)*4]
+    lea       r2q, [zq + 64*4]
+    mova       m5, [ps_neg]
+.loop:
+    movu       m0, [r1q]
+    movu       m2, [r1q + mmsize]
+    movu       m1, [zq + r3q + 4 + mmsize]
+    movu       m3, [zq + r3q + 4]
+
+    pxor       m2, m5
+    pxor       m0, m5
+    pshufd     m2, m2, q0123
+    pshufd     m0, m0, q0123
+    SBUTTERFLY dq, 2, 3, 4
+    SBUTTERFLY dq, 0, 1, 4
+    mova  [r2q + 2*r3q + 0*mmsize], m2
+    mova  [r2q + 2*r3q + 1*mmsize], m3
+    mova  [r2q + 2*r3q + 2*mmsize], m0
+    mova  [r2q + 2*r3q + 3*mmsize], m1
+    add       r1q, 2*mmsize
+    sub       r3q, 2*mmsize
+    jge      .loop
+    movq       m2, [zq]
+    movq    [r2q], m2
+    REP_RET
+
+%ifdef PIC
+%define NREGS 1
+%if UNIX64
+%define NOISE_TABLE r6q ; r5q is m_max
+%else
+%define NOISE_TABLE r5q
+%endif
+%else
+%define NREGS 0
+%define NOISE_TABLE sbr_noise_table
+%endif
+
+%macro LOAD_NST  1
+%ifdef PIC
+    lea  NOISE_TABLE, [%1]
+    mova          m0, [kxq + NOISE_TABLE]
+%else
+    mova          m0, [kxq + %1]
+%endif
+%endmacro
+
+INIT_XMM sse2
+; sbr_hf_apply_noise_0(float (*Y)[2], const float *s_m,
+;                      const float *q_filt, int noise,
+;                      int kx, int m_max)
+cglobal sbr_hf_apply_noise_0, 5,5+NREGS+UNIX64,8, Y,s_m,q_filt,noise,kx,m_max
+    mova       m0, [ps_noise0]
+    jmp apply_noise_main
+
+; sbr_hf_apply_noise_1(float (*Y)[2], const float *s_m,
+;                      const float *q_filt, int noise,
+;                      int kx, int m_max)
+cglobal sbr_hf_apply_noise_1, 5,5+NREGS+UNIX64,8, Y,s_m,q_filt,noise,kx,m_max
+    and       kxq, 1
+    shl       kxq, 4
+    LOAD_NST  ps_noise13
+    jmp apply_noise_main
+
+; sbr_hf_apply_noise_2(float (*Y)[2], const float *s_m,
+;                      const float *q_filt, int noise,
+;                      int kx, int m_max)
+cglobal sbr_hf_apply_noise_2, 5,5+NREGS+UNIX64,8, Y,s_m,q_filt,noise,kx,m_max
+    mova       m0, [ps_noise2]
+    jmp apply_noise_main
+
+; sbr_hf_apply_noise_3(float (*Y)[2], const float *s_m,
+;                      const float *q_filt, int noise,
+;                      int kx, int m_max)
+cglobal sbr_hf_apply_noise_3, 5,5+NREGS+UNIX64,8, Y,s_m,q_filt,noise,kx,m_max
+    and       kxq, 1
+    shl       kxq, 4
+    LOAD_NST  ps_noise13+16
+
+apply_noise_main:
+%if ARCH_X86_64 == 0 || WIN64
+    mov       kxd, m_maxm
+    DEFINE_ARGS Y, s_m, q_filt, noise, count
+%else
+    DEFINE_ARGS Y, s_m, q_filt, noise, kx, count
+%endif
+    movsxdifnidn    noiseq, noised
+    dec    noiseq
+    shl    countd, 2
+%ifdef PIC
+    lea NOISE_TABLE, [sbr_noise_table]
+%endif
+    lea        Yq, [Yq + 2*countq]
+    add      s_mq, countq
+    add   q_filtq, countq
+    shl    noiseq, 3
+    pxor       m5, m5
+    neg    countq
+.loop:
+    mova       m1, [q_filtq + countq]
+    movu       m3, [noiseq + NOISE_TABLE + 1*mmsize]
+    movu       m4, [noiseq + NOISE_TABLE + 2*mmsize]
+    add    noiseq, 2*mmsize
+    and    noiseq, 0x1ff<<3
+    punpckhdq  m2, m1, m1
+    punpckldq  m1, m1
+    mulps      m1, m3 ; m2 = q_filt[m] * ff_sbr_noise_table[noise]
+    mulps      m2, m4 ; m2 = q_filt[m] * ff_sbr_noise_table[noise]
+    mova       m3, [s_mq + countq]
+    ; TODO: replace by a vpermd in AVX2
+    punpckhdq  m4, m3, m3
+    punpckldq  m3, m3
+    pcmpeqd    m6, m3, m5 ; m6 == 0
+    pcmpeqd    m7, m4, m5 ; m7 == 0
+    mulps      m3, m0 ; s_m[m] * phi_sign
+    mulps      m4, m0 ; s_m[m] * phi_sign
+    pand       m1, m6
+    pand       m2, m7
+    movu       m6, [Yq + 2*countq]
+    movu       m7, [Yq + 2*countq + mmsize]
+    addps      m3, m1
+    addps      m4, m2
+    addps      m6, m3
+    addps      m7, m4
+    movu    [Yq + 2*countq], m6
+    movu    [Yq + 2*countq + mmsize], m7
+    add    countq, mmsize
+    jl      .loop
+    RET
+
+INIT_XMM sse
+cglobal sbr_qmf_deint_neg, 2,4,4,v,src,vrev,c
+%define COUNT  32*4
+%define OFFSET 32*4
+    mov        cq, -COUNT
+    lea     vrevq, [vq + OFFSET + COUNT]
+    add        vq, OFFSET-mmsize
+    add      srcq, 2*COUNT
+    mova       m3, [ps_neg]
+.loop:
+    mova       m0, [srcq + 2*cq + 0*mmsize]
+    mova       m1, [srcq + 2*cq + 1*mmsize]
+    shufps     m2, m0, m1, q2020
+    shufps     m1, m0, q1313
+    xorps      m2, m3
+    mova     [vq], m1
+    mova  [vrevq + cq], m2
+    sub        vq, mmsize
+    add        cq, mmsize
+    jl      .loop
+    REP_RET
+
+%macro SBR_AUTOCORRELATE 0
+cglobal sbr_autocorrelate, 2,3,8,32, x, phi, cnt
+    mov   cntq, 37*8
+    add     xq, cntq
+    neg   cntq
+
+%if cpuflag(sse3)
+%define   MOVH  movsd
+    movddup m5, [xq+cntq]
+%else
+%define   MOVH  movlps
+    movlps  m5, [xq+cntq]
+    movlhps m5, m5
+%endif
+    MOVH    m7, [xq+cntq+8 ]
+    MOVH    m1, [xq+cntq+16]
+    shufps  m7, m7, q0110
+    shufps  m1, m1, q0110
+    mulps   m3, m5, m7   ;              x[0][0] * x[1][0], x[0][1] * x[1][1], x[0][0] * x[1][1], x[0][1] * x[1][0]
+    mulps   m4, m5, m5   ;              x[0][0] * x[0][0], x[0][1] * x[0][1];
+    mulps   m5, m1       ; real_sum2  = x[0][0] * x[2][0], x[0][1] * x[2][1]; imag_sum2 = x[0][0] * x[2][1], x[0][1] * x[2][0]
+    movaps  [rsp   ], m3
+    movaps  [rsp+16], m4
+    add   cntq, 8
+
+    MOVH    m2, [xq+cntq+16]
+    movlhps m7, m7
+    shufps  m2, m2, q0110
+    mulps   m6, m7, m1   ; real_sum1  = x[1][0] * x[2][0], x[1][1] * x[2][1]; imag_sum1 += x[1][0] * x[2][1], x[1][1] * x[2][0]
+    mulps   m4, m7, m2
+    mulps   m7, m7       ; real_sum0  = x[1][0] * x[1][0], x[1][1] * x[1][1];
+    addps   m5, m4       ; real_sum2 += x[1][0] * x[3][0], x[1][1] * x[3][1]; imag_sum2 += x[1][0] * x[3][1], x[1][1] * x[3][0]
+
+align 16
+.loop:
+    add   cntq, 8
+    MOVH    m0, [xq+cntq+16]
+    movlhps m1, m1
+    shufps  m0, m0, q0110
+    mulps   m3, m1, m2
+    mulps   m4, m1, m0
+    mulps   m1, m1
+    addps   m6, m3       ; real_sum1 += x[i][0] * x[i + 1][0], x[i][1] * x[i + 1][1]; imag_sum1 += x[i][0] * x[i + 1][1], x[i][1] * x[i + 1][0];
+    addps   m5, m4       ; real_sum2 += x[i][0] * x[i + 2][0], x[i][1] * x[i + 2][1]; imag_sum2 += x[i][0] * x[i + 2][1], x[i][1] * x[i + 2][0];
+    addps   m7, m1       ; real_sum0 += x[i][0] * x[i][0],     x[i][1] * x[i][1];
+    add   cntq, 8
+    MOVH    m1, [xq+cntq+16]
+    movlhps m2, m2
+    shufps  m1, m1, q0110
+    mulps   m3, m2, m0
+    mulps   m4, m2, m1
+    mulps   m2, m2
+    addps   m6, m3       ; real_sum1 += x[i][0] * x[i + 1][0], x[i][1] * x[i + 1][1]; imag_sum1 += x[i][0] * x[i + 1][1], x[i][1] * x[i + 1][0];
+    addps   m5, m4       ; real_sum2 += x[i][0] * x[i + 2][0], x[i][1] * x[i + 2][1]; imag_sum2 += x[i][0] * x[i + 2][1], x[i][1] * x[i + 2][0];
+    addps   m7, m2       ; real_sum0 += x[i][0] * x[i][0],     x[i][1] * x[i][1];
+    add   cntq, 8
+    MOVH    m2, [xq+cntq+16]
+    movlhps m0, m0
+    shufps  m2, m2, q0110
+    mulps   m3, m0, m1
+    mulps   m4, m0, m2
+    mulps   m0, m0
+    addps   m6, m3       ; real_sum1 += x[i][0] * x[i + 1][0], x[i][1] * x[i + 1][1]; imag_sum1 += x[i][0] * x[i + 1][1], x[i][1] * x[i + 1][0];
+    addps   m5, m4       ; real_sum2 += x[i][0] * x[i + 2][0], x[i][1] * x[i + 2][1]; imag_sum2 += x[i][0] * x[i + 2][1], x[i][1] * x[i + 2][0];
+    addps   m7, m0       ; real_sum0 += x[i][0] * x[i][0],     x[i][1] * x[i][1];
+    jl .loop
+
+    movlhps m1, m1
+    mulps   m2, m1
+    mulps   m1, m1
+    addps   m2, m6       ; real_sum1 + x[38][0] * x[39][0], x[38][1] * x[39][1]; imag_sum1 + x[38][0] * x[39][1], x[38][1] * x[39][0];
+    addps   m1, m7       ; real_sum0 + x[38][0] * x[38][0], x[38][1] * x[38][1];
+    addps   m6, [rsp   ] ; real_sum1 + x[ 0][0] * x[ 1][0], x[ 0][1] * x[ 1][1]; imag_sum1 + x[ 0][0] * x[ 1][1], x[ 0][1] * x[ 1][0];
+    addps   m7, [rsp+16] ; real_sum0 + x[ 0][0] * x[ 0][0], x[ 0][1] * x[ 0][1];
+
+    xorps   m2, [ps_mask3]
+    xorps   m5, [ps_mask3]
+    xorps   m6, [ps_mask3]
+    HADDPS  m2, m5, m3
+    HADDPS  m7, m6, m4
+%if cpuflag(sse3)
+    movshdup m0, m1
+%else
+    movss   m0, m1
+    shufps  m1, m1, q0001
+%endif
+    addss   m1, m0
+    movaps  [phiq     ], m2
+    movhps  [phiq+0x18], m7
+    movss   [phiq+0x28], m7
+    movss   [phiq+0x10], m1
+    RET
+%endmacro
+
+INIT_XMM sse
+SBR_AUTOCORRELATE
+INIT_XMM sse3
+SBR_AUTOCORRELATE
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/sbrdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/sbrdsp_init.c
new file mode 100644
index 000000000..6911a1a51
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/sbrdsp_init.c
@@ -0,0 +1,87 @@
+/*
+ * AAC Spectral Band Replication decoding functions
+ * Copyright (c) 2012 Christophe Gisquet <christophe.gisquet@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/sbrdsp.h"
+
+float ff_sbr_sum_square_sse(float (*x)[2], int n);
+void ff_sbr_sum64x5_sse(float *z);
+void ff_sbr_hf_g_filt_sse(float (*Y)[2], const float (*X_high)[40][2],
+                          const float *g_filt, int m_max, intptr_t ixh);
+void ff_sbr_hf_gen_sse(float (*X_high)[2], const float (*X_low)[2],
+                       const float alpha0[2], const float alpha1[2],
+                       float bw, int start, int end);
+void ff_sbr_neg_odd_64_sse(float *z);
+void ff_sbr_qmf_post_shuffle_sse(float W[32][2], const float *z);
+void ff_sbr_qmf_deint_bfly_sse(float *v, const float *src0, const float *src1);
+void ff_sbr_qmf_deint_bfly_sse2(float *v, const float *src0, const float *src1);
+void ff_sbr_qmf_pre_shuffle_sse2(float *z);
+
+void ff_sbr_hf_apply_noise_0_sse2(float (*Y)[2], const float *s_m,
+                                  const float *q_filt, int noise,
+                                  int kx, int m_max);
+void ff_sbr_hf_apply_noise_1_sse2(float (*Y)[2], const float *s_m,
+                                  const float *q_filt, int noise,
+                                  int kx, int m_max);
+void ff_sbr_hf_apply_noise_2_sse2(float (*Y)[2], const float *s_m,
+                                  const float *q_filt, int noise,
+                                  int kx, int m_max);
+void ff_sbr_hf_apply_noise_3_sse2(float (*Y)[2], const float *s_m,
+                                  const float *q_filt, int noise,
+                                  int kx, int m_max);
+
+void ff_sbr_qmf_deint_neg_sse(float *v, const float *src);
+
+void ff_sbr_autocorrelate_sse (const float x[40][2], float phi[3][2][2]);
+void ff_sbr_autocorrelate_sse3(const float x[40][2], float phi[3][2][2]);
+
+av_cold void ff_sbrdsp_init_x86(SBRDSPContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        s->neg_odd_64 = ff_sbr_neg_odd_64_sse;
+        s->sum_square = ff_sbr_sum_square_sse;
+        s->sum64x5    = ff_sbr_sum64x5_sse;
+        s->hf_g_filt  = ff_sbr_hf_g_filt_sse;
+        s->hf_gen     = ff_sbr_hf_gen_sse;
+        s->qmf_post_shuffle = ff_sbr_qmf_post_shuffle_sse;
+        s->qmf_deint_bfly   = ff_sbr_qmf_deint_bfly_sse;
+        s->qmf_deint_neg    = ff_sbr_qmf_deint_neg_sse;
+        s->autocorrelate    = ff_sbr_autocorrelate_sse;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        s->qmf_deint_bfly   = ff_sbr_qmf_deint_bfly_sse2;
+        s->qmf_pre_shuffle  = ff_sbr_qmf_pre_shuffle_sse2;
+        s->hf_apply_noise[0] = ff_sbr_hf_apply_noise_0_sse2;
+        s->hf_apply_noise[1] = ff_sbr_hf_apply_noise_1_sse2;
+        s->hf_apply_noise[2] = ff_sbr_hf_apply_noise_2_sse2;
+        s->hf_apply_noise[3] = ff_sbr_hf_apply_noise_3_sse2;
+    }
+
+    if (EXTERNAL_SSE3(cpu_flags)) {
+        s->autocorrelate = ff_sbr_autocorrelate_sse3;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/simple_idct.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/simple_idct.h
new file mode 100644
index 000000000..9b64cfe9b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/simple_idct.h
@@ -0,0 +1,53 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_SIMPLE_IDCT_H
+#define AVCODEC_X86_SIMPLE_IDCT_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+void ff_simple_idct_mmx(int16_t *block);
+void ff_simple_idct_add_mmx(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct_put_mmx(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+
+void ff_simple_idct_add_sse2(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct_put_sse2(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+
+void ff_simple_idct8_sse2(int16_t *block);
+void ff_simple_idct8_avx(int16_t *block);
+
+void ff_simple_idct8_put_sse2(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct8_put_avx(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+
+void ff_simple_idct8_add_sse2(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct8_add_avx(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+
+void ff_simple_idct10_sse2(int16_t *block);
+void ff_simple_idct10_avx(int16_t *block);
+
+void ff_simple_idct10_put_sse2(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct10_put_avx(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+
+void ff_simple_idct12_sse2(int16_t *block);
+void ff_simple_idct12_avx(int16_t *block);
+
+void ff_simple_idct12_put_sse2(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_simple_idct12_put_avx(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+
+#endif /* AVCODEC_X86_SIMPLE_IDCT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/snowdsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/snowdsp.c
new file mode 100644
index 000000000..218e6864d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/snowdsp.c
@@ -0,0 +1,908 @@
+/*
+ * MMX and SSE2 optimized snow DSP utils
+ * Copyright (c) 2005-2006 Robert Edele <yartrebo@earthlink.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/snow.h"
+#include "libavcodec/snow_dwt.h"
+
+#if HAVE_INLINE_ASM
+
+static void ff_snow_horizontal_compose97i_sse2(IDWTELEM *b, IDWTELEM *temp, int width){
+    const int w2= (width+1)>>1;
+    const int w_l= (width>>1);
+    const int w_r= w2 - 1;
+    int i;
+
+    { // Lift 0
+        IDWTELEM * const ref = b + w2 - 1;
+        IDWTELEM b_0 = b[0]; //By allowing the first entry in b[0] to be calculated twice
+        // (the first time erroneously), we allow the SSE2 code to run an extra pass.
+        // The savings in code and time are well worth having to store this value and
+        // calculate b[0] correctly afterwards.
+
+        i = 0;
+        __asm__ volatile(
+            "pcmpeqd   %%xmm7, %%xmm7         \n\t"
+            "pcmpeqd   %%xmm3, %%xmm3         \n\t"
+            "psllw         $1, %%xmm3         \n\t"
+            "paddw     %%xmm7, %%xmm3         \n\t"
+            "psllw        $13, %%xmm3         \n\t"
+        ::);
+        for(; i<w_l-15; i+=16){
+            __asm__ volatile(
+                "movdqu   (%1), %%xmm1        \n\t"
+                "movdqu 16(%1), %%xmm5        \n\t"
+                "movdqu  2(%1), %%xmm2        \n\t"
+                "movdqu 18(%1), %%xmm6        \n\t"
+                "paddw  %%xmm1, %%xmm2        \n\t"
+                "paddw  %%xmm5, %%xmm6        \n\t"
+                "paddw  %%xmm7, %%xmm2        \n\t"
+                "paddw  %%xmm7, %%xmm6        \n\t"
+                "pmulhw %%xmm3, %%xmm2        \n\t"
+                "pmulhw %%xmm3, %%xmm6        \n\t"
+                "paddw    (%0), %%xmm2        \n\t"
+                "paddw  16(%0), %%xmm6        \n\t"
+                "movdqa %%xmm2, (%0)          \n\t"
+                "movdqa %%xmm6, 16(%0)        \n\t"
+                :: "r"(&b[i]), "r"(&ref[i])
+                : "memory"
+            );
+        }
+        snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);
+        b[0] = b_0 - ((W_DM * 2 * ref[1]+W_DO)>>W_DS);
+    }
+
+    { // Lift 1
+        IDWTELEM * const dst = b+w2;
+
+        i = 0;
+        for(; (((x86_reg)&dst[i]) & 0x1F) && i<w_r; i++){
+            dst[i] = dst[i] - (b[i] + b[i + 1]);
+        }
+        for(; i<w_r-15; i+=16){
+            __asm__ volatile(
+                "movdqu   (%1), %%xmm1        \n\t"
+                "movdqu 16(%1), %%xmm5        \n\t"
+                "movdqu  2(%1), %%xmm2        \n\t"
+                "movdqu 18(%1), %%xmm6        \n\t"
+                "paddw  %%xmm1, %%xmm2        \n\t"
+                "paddw  %%xmm5, %%xmm6        \n\t"
+                "movdqa   (%0), %%xmm0        \n\t"
+                "movdqa 16(%0), %%xmm4        \n\t"
+                "psubw  %%xmm2, %%xmm0        \n\t"
+                "psubw  %%xmm6, %%xmm4        \n\t"
+                "movdqa %%xmm0, (%0)          \n\t"
+                "movdqa %%xmm4, 16(%0)        \n\t"
+                :: "r"(&dst[i]), "r"(&b[i])
+                : "memory"
+            );
+        }
+        snow_horizontal_compose_lift_lead_out(i, dst, dst, b, width, w_r, 1, W_CM, W_CO, W_CS);
+    }
+
+    { // Lift 2
+        IDWTELEM * const ref = b+w2 - 1;
+        IDWTELEM b_0 = b[0];
+
+        i = 0;
+        __asm__ volatile(
+            "psllw         $15, %%xmm7        \n\t"
+            "pcmpeqw    %%xmm6, %%xmm6        \n\t"
+            "psrlw         $13, %%xmm6        \n\t"
+            "paddw      %%xmm7, %%xmm6        \n\t"
+        ::);
+        for(; i<w_l-15; i+=16){
+            __asm__ volatile(
+                "movdqu   (%1), %%xmm0        \n\t"
+                "movdqu 16(%1), %%xmm4        \n\t"
+                "movdqu  2(%1), %%xmm1        \n\t"
+                "movdqu 18(%1), %%xmm5        \n\t" //FIXME try aligned reads and shifts
+                "paddw  %%xmm6, %%xmm0        \n\t"
+                "paddw  %%xmm6, %%xmm4        \n\t"
+                "paddw  %%xmm7, %%xmm1        \n\t"
+                "paddw  %%xmm7, %%xmm5        \n\t"
+                "pavgw  %%xmm1, %%xmm0        \n\t"
+                "pavgw  %%xmm5, %%xmm4        \n\t"
+                "psubw  %%xmm7, %%xmm0        \n\t"
+                "psubw  %%xmm7, %%xmm4        \n\t"
+                "psraw      $1, %%xmm0        \n\t"
+                "psraw      $1, %%xmm4        \n\t"
+                "movdqa   (%0), %%xmm1        \n\t"
+                "movdqa 16(%0), %%xmm5        \n\t"
+                "paddw  %%xmm1, %%xmm0        \n\t"
+                "paddw  %%xmm5, %%xmm4        \n\t"
+                "psraw      $2, %%xmm0        \n\t"
+                "psraw      $2, %%xmm4        \n\t"
+                "paddw  %%xmm1, %%xmm0        \n\t"
+                "paddw  %%xmm5, %%xmm4        \n\t"
+                "movdqa %%xmm0, (%0)          \n\t"
+                "movdqa %%xmm4, 16(%0)        \n\t"
+                :: "r"(&b[i]), "r"(&ref[i])
+                : "memory"
+            );
+        }
+        snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);
+        b[0] = b_0 + ((2 * ref[1] + W_BO-1 + 4 * b_0) >> W_BS);
+    }
+
+    { // Lift 3
+        IDWTELEM * const src = b+w2;
+
+        i = 0;
+        for(; (((x86_reg)&temp[i]) & 0x1F) && i<w_r; i++){
+            temp[i] = src[i] - ((-W_AM*(b[i] + b[i+1]))>>W_AS);
+        }
+        for(; i<w_r-7; i+=8){
+            __asm__ volatile(
+                "movdqu  2(%1), %%xmm2        \n\t"
+                "movdqu 18(%1), %%xmm6        \n\t"
+                "paddw    (%1), %%xmm2        \n\t"
+                "paddw  16(%1), %%xmm6        \n\t"
+                "movdqu   (%0), %%xmm0        \n\t"
+                "movdqu 16(%0), %%xmm4        \n\t"
+                "paddw  %%xmm2, %%xmm0        \n\t"
+                "paddw  %%xmm6, %%xmm4        \n\t"
+                "psraw      $1, %%xmm2        \n\t"
+                "psraw      $1, %%xmm6        \n\t"
+                "paddw  %%xmm0, %%xmm2        \n\t"
+                "paddw  %%xmm4, %%xmm6        \n\t"
+                "movdqa %%xmm2, (%2)          \n\t"
+                "movdqa %%xmm6, 16(%2)        \n\t"
+                :: "r"(&src[i]), "r"(&b[i]), "r"(&temp[i])
+                 : "memory"
+               );
+        }
+        snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -W_AM, W_AO+1, W_AS);
+    }
+
+    {
+        snow_interleave_line_header(&i, width, b, temp);
+
+        for (; (i & 0x3E) != 0x3E; i-=2){
+            b[i+1] = temp[i>>1];
+            b[i] = b[i>>1];
+        }
+        for (i-=62; i>=0; i-=64){
+            __asm__ volatile(
+                "movdqa      (%1), %%xmm0       \n\t"
+                "movdqa    16(%1), %%xmm2       \n\t"
+                "movdqa    32(%1), %%xmm4       \n\t"
+                "movdqa    48(%1), %%xmm6       \n\t"
+                "movdqa      (%1), %%xmm1       \n\t"
+                "movdqa    16(%1), %%xmm3       \n\t"
+                "movdqa    32(%1), %%xmm5       \n\t"
+                "movdqa    48(%1), %%xmm7       \n\t"
+                "punpcklwd   (%2), %%xmm0       \n\t"
+                "punpcklwd 16(%2), %%xmm2       \n\t"
+                "punpcklwd 32(%2), %%xmm4       \n\t"
+                "punpcklwd 48(%2), %%xmm6       \n\t"
+                "movdqa    %%xmm0, (%0)         \n\t"
+                "movdqa    %%xmm2, 32(%0)       \n\t"
+                "movdqa    %%xmm4, 64(%0)       \n\t"
+                "movdqa    %%xmm6, 96(%0)       \n\t"
+                "punpckhwd   (%2), %%xmm1       \n\t"
+                "punpckhwd 16(%2), %%xmm3       \n\t"
+                "punpckhwd 32(%2), %%xmm5       \n\t"
+                "punpckhwd 48(%2), %%xmm7       \n\t"
+                "movdqa    %%xmm1, 16(%0)       \n\t"
+                "movdqa    %%xmm3, 48(%0)       \n\t"
+                "movdqa    %%xmm5, 80(%0)       \n\t"
+                "movdqa    %%xmm7, 112(%0)      \n\t"
+                :: "r"(&(b)[i]), "r"(&(b)[i>>1]), "r"(&(temp)[i>>1])
+                 : "memory"
+               );
+        }
+    }
+}
+
+static void ff_snow_horizontal_compose97i_mmx(IDWTELEM *b, IDWTELEM *temp, int width){
+    const int w2= (width+1)>>1;
+    const int w_l= (width>>1);
+    const int w_r= w2 - 1;
+    int i;
+
+    { // Lift 0
+        IDWTELEM * const ref = b + w2 - 1;
+
+        i = 1;
+        b[0] = b[0] - ((W_DM * 2 * ref[1]+W_DO)>>W_DS);
+        __asm__ volatile(
+            "pcmpeqw    %%mm7, %%mm7         \n\t"
+            "pcmpeqw    %%mm3, %%mm3         \n\t"
+            "psllw         $1, %%mm3         \n\t"
+            "paddw      %%mm7, %%mm3         \n\t"
+            "psllw        $13, %%mm3         \n\t"
+           ::);
+        for(; i<w_l-7; i+=8){
+            __asm__ volatile(
+                "movq     (%1), %%mm2        \n\t"
+                "movq    8(%1), %%mm6        \n\t"
+                "paddw   2(%1), %%mm2        \n\t"
+                "paddw  10(%1), %%mm6        \n\t"
+                "paddw   %%mm7, %%mm2        \n\t"
+                "paddw   %%mm7, %%mm6        \n\t"
+                "pmulhw  %%mm3, %%mm2        \n\t"
+                "pmulhw  %%mm3, %%mm6        \n\t"
+                "paddw    (%0), %%mm2        \n\t"
+                "paddw   8(%0), %%mm6        \n\t"
+                "movq    %%mm2, (%0)         \n\t"
+                "movq    %%mm6, 8(%0)        \n\t"
+                :: "r"(&b[i]), "r"(&ref[i])
+                 : "memory"
+               );
+        }
+        snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);
+    }
+
+    { // Lift 1
+        IDWTELEM * const dst = b+w2;
+
+        i = 0;
+        for(; i<w_r-7; i+=8){
+            __asm__ volatile(
+                "movq     (%1), %%mm2        \n\t"
+                "movq    8(%1), %%mm6        \n\t"
+                "paddw   2(%1), %%mm2        \n\t"
+                "paddw  10(%1), %%mm6        \n\t"
+                "movq     (%0), %%mm0        \n\t"
+                "movq    8(%0), %%mm4        \n\t"
+                "psubw   %%mm2, %%mm0        \n\t"
+                "psubw   %%mm6, %%mm4        \n\t"
+                "movq    %%mm0, (%0)         \n\t"
+                "movq    %%mm4, 8(%0)        \n\t"
+                :: "r"(&dst[i]), "r"(&b[i])
+                 : "memory"
+               );
+        }
+        snow_horizontal_compose_lift_lead_out(i, dst, dst, b, width, w_r, 1, W_CM, W_CO, W_CS);
+    }
+
+    { // Lift 2
+        IDWTELEM * const ref = b+w2 - 1;
+
+        i = 1;
+        b[0] = b[0] + (((2 * ref[1] + W_BO) + 4 * b[0]) >> W_BS);
+        __asm__ volatile(
+            "psllw         $15, %%mm7        \n\t"
+            "pcmpeqw     %%mm6, %%mm6        \n\t"
+            "psrlw         $13, %%mm6        \n\t"
+            "paddw       %%mm7, %%mm6        \n\t"
+           ::);
+        for(; i<w_l-7; i+=8){
+            __asm__ volatile(
+                "movq     (%1), %%mm0        \n\t"
+                "movq    8(%1), %%mm4        \n\t"
+                "movq    2(%1), %%mm1        \n\t"
+                "movq   10(%1), %%mm5        \n\t"
+                "paddw   %%mm6, %%mm0        \n\t"
+                "paddw   %%mm6, %%mm4        \n\t"
+                "paddw   %%mm7, %%mm1        \n\t"
+                "paddw   %%mm7, %%mm5        \n\t"
+                "pavgw   %%mm1, %%mm0        \n\t"
+                "pavgw   %%mm5, %%mm4        \n\t"
+                "psubw   %%mm7, %%mm0        \n\t"
+                "psubw   %%mm7, %%mm4        \n\t"
+                "psraw      $1, %%mm0        \n\t"
+                "psraw      $1, %%mm4        \n\t"
+                "movq     (%0), %%mm1        \n\t"
+                "movq    8(%0), %%mm5        \n\t"
+                "paddw   %%mm1, %%mm0        \n\t"
+                "paddw   %%mm5, %%mm4        \n\t"
+                "psraw      $2, %%mm0        \n\t"
+                "psraw      $2, %%mm4        \n\t"
+                "paddw   %%mm1, %%mm0        \n\t"
+                "paddw   %%mm5, %%mm4        \n\t"
+                "movq    %%mm0, (%0)         \n\t"
+                "movq    %%mm4, 8(%0)        \n\t"
+                :: "r"(&b[i]), "r"(&ref[i])
+                 : "memory"
+               );
+        }
+        snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);
+    }
+
+    { // Lift 3
+        IDWTELEM * const src = b+w2;
+        i = 0;
+
+        for(; i<w_r-7; i+=8){
+            __asm__ volatile(
+                "movq    2(%1), %%mm2        \n\t"
+                "movq   10(%1), %%mm6        \n\t"
+                "paddw    (%1), %%mm2        \n\t"
+                "paddw   8(%1), %%mm6        \n\t"
+                "movq     (%0), %%mm0        \n\t"
+                "movq    8(%0), %%mm4        \n\t"
+                "paddw   %%mm2, %%mm0        \n\t"
+                "paddw   %%mm6, %%mm4        \n\t"
+                "psraw      $1, %%mm2        \n\t"
+                "psraw      $1, %%mm6        \n\t"
+                "paddw   %%mm0, %%mm2        \n\t"
+                "paddw   %%mm4, %%mm6        \n\t"
+                "movq    %%mm2, (%2)         \n\t"
+                "movq    %%mm6, 8(%2)        \n\t"
+                :: "r"(&src[i]), "r"(&b[i]), "r"(&temp[i])
+                 : "memory"
+               );
+        }
+        snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -W_AM, W_AO+1, W_AS);
+    }
+
+    {
+        snow_interleave_line_header(&i, width, b, temp);
+
+        for (; (i & 0x1E) != 0x1E; i-=2){
+            b[i+1] = temp[i>>1];
+            b[i] = b[i>>1];
+        }
+        for (i-=30; i>=0; i-=32){
+            __asm__ volatile(
+                "movq        (%1), %%mm0       \n\t"
+                "movq       8(%1), %%mm2       \n\t"
+                "movq      16(%1), %%mm4       \n\t"
+                "movq      24(%1), %%mm6       \n\t"
+                "movq        (%1), %%mm1       \n\t"
+                "movq       8(%1), %%mm3       \n\t"
+                "movq      16(%1), %%mm5       \n\t"
+                "movq      24(%1), %%mm7       \n\t"
+                "punpcklwd   (%2), %%mm0       \n\t"
+                "punpcklwd  8(%2), %%mm2       \n\t"
+                "punpcklwd 16(%2), %%mm4       \n\t"
+                "punpcklwd 24(%2), %%mm6       \n\t"
+                "movq       %%mm0, (%0)        \n\t"
+                "movq       %%mm2, 16(%0)      \n\t"
+                "movq       %%mm4, 32(%0)      \n\t"
+                "movq       %%mm6, 48(%0)      \n\t"
+                "punpckhwd   (%2), %%mm1       \n\t"
+                "punpckhwd  8(%2), %%mm3       \n\t"
+                "punpckhwd 16(%2), %%mm5       \n\t"
+                "punpckhwd 24(%2), %%mm7       \n\t"
+                "movq       %%mm1, 8(%0)       \n\t"
+                "movq       %%mm3, 24(%0)      \n\t"
+                "movq       %%mm5, 40(%0)      \n\t"
+                "movq       %%mm7, 56(%0)      \n\t"
+                :: "r"(&b[i]), "r"(&b[i>>1]), "r"(&temp[i>>1])
+                 : "memory"
+               );
+        }
+    }
+}
+
+#if HAVE_7REGS
+#define snow_vertical_compose_sse2_load_add(op,r,t0,t1,t2,t3)\
+        ""op" ("r",%%"FF_REG_d"), %%"t0"      \n\t"\
+        ""op" 16("r",%%"FF_REG_d"), %%"t1"    \n\t"\
+        ""op" 32("r",%%"FF_REG_d"), %%"t2"    \n\t"\
+        ""op" 48("r",%%"FF_REG_d"), %%"t3"    \n\t"
+
+#define snow_vertical_compose_sse2_load(r,t0,t1,t2,t3)\
+        snow_vertical_compose_sse2_load_add("movdqa",r,t0,t1,t2,t3)
+
+#define snow_vertical_compose_sse2_add(r,t0,t1,t2,t3)\
+        snow_vertical_compose_sse2_load_add("paddw",r,t0,t1,t2,t3)
+
+#define snow_vertical_compose_r2r_sub(s0,s1,s2,s3,t0,t1,t2,t3)\
+        "psubw %%"s0", %%"t0" \n\t"\
+        "psubw %%"s1", %%"t1" \n\t"\
+        "psubw %%"s2", %%"t2" \n\t"\
+        "psubw %%"s3", %%"t3" \n\t"
+
+#define snow_vertical_compose_sse2_store(w,s0,s1,s2,s3)\
+        "movdqa %%"s0", ("w",%%"FF_REG_d")    \n\t"\
+        "movdqa %%"s1", 16("w",%%"FF_REG_d")  \n\t"\
+        "movdqa %%"s2", 32("w",%%"FF_REG_d")  \n\t"\
+        "movdqa %%"s3", 48("w",%%"FF_REG_d")  \n\t"
+
+#define snow_vertical_compose_sra(n,t0,t1,t2,t3)\
+        "psraw $"n", %%"t0" \n\t"\
+        "psraw $"n", %%"t1" \n\t"\
+        "psraw $"n", %%"t2" \n\t"\
+        "psraw $"n", %%"t3" \n\t"
+
+#define snow_vertical_compose_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)\
+        "paddw %%"s0", %%"t0" \n\t"\
+        "paddw %%"s1", %%"t1" \n\t"\
+        "paddw %%"s2", %%"t2" \n\t"\
+        "paddw %%"s3", %%"t3" \n\t"
+
+#define snow_vertical_compose_r2r_pmulhw(s0,s1,s2,s3,t0,t1,t2,t3)\
+        "pmulhw %%"s0", %%"t0" \n\t"\
+        "pmulhw %%"s1", %%"t1" \n\t"\
+        "pmulhw %%"s2", %%"t2" \n\t"\
+        "pmulhw %%"s3", %%"t3" \n\t"
+
+#define snow_vertical_compose_sse2_move(s0,s1,s2,s3,t0,t1,t2,t3)\
+        "movdqa %%"s0", %%"t0" \n\t"\
+        "movdqa %%"s1", %%"t1" \n\t"\
+        "movdqa %%"s2", %%"t2" \n\t"\
+        "movdqa %%"s3", %%"t3" \n\t"
+
+static void ff_snow_vertical_compose97i_sse2(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
+    x86_reg i = width;
+
+    while(i & 0x1F)
+    {
+        i--;
+        b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
+        b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
+        b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
+        b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
+    }
+    i+=i;
+
+         __asm__ volatile (
+        "jmp 2f                                      \n\t"
+        "1:                                          \n\t"
+        snow_vertical_compose_sse2_load("%4","xmm0","xmm2","xmm4","xmm6")
+        snow_vertical_compose_sse2_add("%6","xmm0","xmm2","xmm4","xmm6")
+
+
+        "pcmpeqw    %%xmm0, %%xmm0                   \n\t"
+        "pcmpeqw    %%xmm2, %%xmm2                   \n\t"
+        "paddw      %%xmm2, %%xmm2                   \n\t"
+        "paddw      %%xmm0, %%xmm2                   \n\t"
+        "psllw         $13, %%xmm2                   \n\t"
+        snow_vertical_compose_r2r_add("xmm0","xmm0","xmm0","xmm0","xmm1","xmm3","xmm5","xmm7")
+        snow_vertical_compose_r2r_pmulhw("xmm2","xmm2","xmm2","xmm2","xmm1","xmm3","xmm5","xmm7")
+        snow_vertical_compose_sse2_add("%5","xmm1","xmm3","xmm5","xmm7")
+        snow_vertical_compose_sse2_store("%5","xmm1","xmm3","xmm5","xmm7")
+        snow_vertical_compose_sse2_load("%4","xmm0","xmm2","xmm4","xmm6")
+        snow_vertical_compose_sse2_add("%3","xmm1","xmm3","xmm5","xmm7")
+        snow_vertical_compose_r2r_sub("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
+        snow_vertical_compose_sse2_store("%4","xmm0","xmm2","xmm4","xmm6")
+
+        "pcmpeqw %%xmm7, %%xmm7                      \n\t"
+        "pcmpeqw %%xmm5, %%xmm5                      \n\t"
+        "psllw $15, %%xmm7                           \n\t"
+        "psrlw $13, %%xmm5                           \n\t"
+        "paddw %%xmm7, %%xmm5                        \n\t"
+        snow_vertical_compose_r2r_add("xmm5","xmm5","xmm5","xmm5","xmm0","xmm2","xmm4","xmm6")
+        "movq   (%2,%%"FF_REG_d"), %%xmm1            \n\t"
+        "movq  8(%2,%%"FF_REG_d"), %%xmm3            \n\t"
+        "paddw %%xmm7, %%xmm1                        \n\t"
+        "paddw %%xmm7, %%xmm3                        \n\t"
+        "pavgw %%xmm1, %%xmm0                        \n\t"
+        "pavgw %%xmm3, %%xmm2                        \n\t"
+        "movq 16(%2,%%"FF_REG_d"), %%xmm1            \n\t"
+        "movq 24(%2,%%"FF_REG_d"), %%xmm3            \n\t"
+        "paddw %%xmm7, %%xmm1                        \n\t"
+        "paddw %%xmm7, %%xmm3                        \n\t"
+        "pavgw %%xmm1, %%xmm4                        \n\t"
+        "pavgw %%xmm3, %%xmm6                        \n\t"
+        snow_vertical_compose_r2r_sub("xmm7","xmm7","xmm7","xmm7","xmm0","xmm2","xmm4","xmm6")
+        snow_vertical_compose_sra("1","xmm0","xmm2","xmm4","xmm6")
+        snow_vertical_compose_sse2_add("%3","xmm0","xmm2","xmm4","xmm6")
+
+        snow_vertical_compose_sra("2","xmm0","xmm2","xmm4","xmm6")
+        snow_vertical_compose_sse2_add("%3","xmm0","xmm2","xmm4","xmm6")
+        snow_vertical_compose_sse2_store("%3","xmm0","xmm2","xmm4","xmm6")
+        snow_vertical_compose_sse2_add("%1","xmm0","xmm2","xmm4","xmm6")
+        snow_vertical_compose_sse2_move("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")
+        snow_vertical_compose_sra("1","xmm0","xmm2","xmm4","xmm6")
+        snow_vertical_compose_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
+        snow_vertical_compose_sse2_add("%2","xmm0","xmm2","xmm4","xmm6")
+        snow_vertical_compose_sse2_store("%2","xmm0","xmm2","xmm4","xmm6")
+
+        "2:                                          \n\t"
+        "sub $64, %%"FF_REG_d"                       \n\t"
+        "jge 1b                                      \n\t"
+        :"+d"(i)
+        :"r"(b0),"r"(b1),"r"(b2),"r"(b3),"r"(b4),"r"(b5));
+}
+
+#define snow_vertical_compose_mmx_load_add(op,r,t0,t1,t2,t3)\
+        ""op" ("r",%%"FF_REG_d"), %%"t0"   \n\t"\
+        ""op" 8("r",%%"FF_REG_d"), %%"t1"  \n\t"\
+        ""op" 16("r",%%"FF_REG_d"), %%"t2" \n\t"\
+        ""op" 24("r",%%"FF_REG_d"), %%"t3" \n\t"
+
+#define snow_vertical_compose_mmx_load(r,t0,t1,t2,t3)\
+        snow_vertical_compose_mmx_load_add("movq",r,t0,t1,t2,t3)
+
+#define snow_vertical_compose_mmx_add(r,t0,t1,t2,t3)\
+        snow_vertical_compose_mmx_load_add("paddw",r,t0,t1,t2,t3)
+
+#define snow_vertical_compose_mmx_store(w,s0,s1,s2,s3)\
+        "movq %%"s0", ("w",%%"FF_REG_d")   \n\t"\
+        "movq %%"s1", 8("w",%%"FF_REG_d")  \n\t"\
+        "movq %%"s2", 16("w",%%"FF_REG_d") \n\t"\
+        "movq %%"s3", 24("w",%%"FF_REG_d") \n\t"
+
+#define snow_vertical_compose_mmx_move(s0,s1,s2,s3,t0,t1,t2,t3)\
+        "movq %%"s0", %%"t0" \n\t"\
+        "movq %%"s1", %%"t1" \n\t"\
+        "movq %%"s2", %%"t2" \n\t"\
+        "movq %%"s3", %%"t3" \n\t"
+
+
+static void ff_snow_vertical_compose97i_mmx(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
+    x86_reg i = width;
+    while(i & 15)
+    {
+        i--;
+        b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
+        b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
+        b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
+        b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
+    }
+    i+=i;
+    __asm__ volatile(
+        "jmp 2f                                      \n\t"
+        "1:                                          \n\t"
+
+        snow_vertical_compose_mmx_load("%4","mm1","mm3","mm5","mm7")
+        snow_vertical_compose_mmx_add("%6","mm1","mm3","mm5","mm7")
+        "pcmpeqw    %%mm0, %%mm0                     \n\t"
+        "pcmpeqw    %%mm2, %%mm2                     \n\t"
+        "paddw      %%mm2, %%mm2                     \n\t"
+        "paddw      %%mm0, %%mm2                     \n\t"
+        "psllw        $13, %%mm2                     \n\t"
+        snow_vertical_compose_r2r_add("mm0","mm0","mm0","mm0","mm1","mm3","mm5","mm7")
+        snow_vertical_compose_r2r_pmulhw("mm2","mm2","mm2","mm2","mm1","mm3","mm5","mm7")
+        snow_vertical_compose_mmx_add("%5","mm1","mm3","mm5","mm7")
+        snow_vertical_compose_mmx_store("%5","mm1","mm3","mm5","mm7")
+        snow_vertical_compose_mmx_load("%4","mm0","mm2","mm4","mm6")
+        snow_vertical_compose_mmx_add("%3","mm1","mm3","mm5","mm7")
+        snow_vertical_compose_r2r_sub("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
+        snow_vertical_compose_mmx_store("%4","mm0","mm2","mm4","mm6")
+        "pcmpeqw %%mm7, %%mm7                        \n\t"
+        "pcmpeqw %%mm5, %%mm5                        \n\t"
+        "psllw $15, %%mm7                            \n\t"
+        "psrlw $13, %%mm5                            \n\t"
+        "paddw %%mm7, %%mm5                          \n\t"
+        snow_vertical_compose_r2r_add("mm5","mm5","mm5","mm5","mm0","mm2","mm4","mm6")
+        "movq   (%2,%%"FF_REG_d"), %%mm1             \n\t"
+        "movq  8(%2,%%"FF_REG_d"), %%mm3             \n\t"
+        "paddw %%mm7, %%mm1                          \n\t"
+        "paddw %%mm7, %%mm3                          \n\t"
+        "pavgw %%mm1, %%mm0                          \n\t"
+        "pavgw %%mm3, %%mm2                          \n\t"
+        "movq 16(%2,%%"FF_REG_d"), %%mm1             \n\t"
+        "movq 24(%2,%%"FF_REG_d"), %%mm3             \n\t"
+        "paddw %%mm7, %%mm1                          \n\t"
+        "paddw %%mm7, %%mm3                          \n\t"
+        "pavgw %%mm1, %%mm4                          \n\t"
+        "pavgw %%mm3, %%mm6                          \n\t"
+        snow_vertical_compose_r2r_sub("mm7","mm7","mm7","mm7","mm0","mm2","mm4","mm6")
+        snow_vertical_compose_sra("1","mm0","mm2","mm4","mm6")
+        snow_vertical_compose_mmx_add("%3","mm0","mm2","mm4","mm6")
+
+        snow_vertical_compose_sra("2","mm0","mm2","mm4","mm6")
+        snow_vertical_compose_mmx_add("%3","mm0","mm2","mm4","mm6")
+        snow_vertical_compose_mmx_store("%3","mm0","mm2","mm4","mm6")
+        snow_vertical_compose_mmx_add("%1","mm0","mm2","mm4","mm6")
+        snow_vertical_compose_mmx_move("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")
+        snow_vertical_compose_sra("1","mm0","mm2","mm4","mm6")
+        snow_vertical_compose_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
+        snow_vertical_compose_mmx_add("%2","mm0","mm2","mm4","mm6")
+        snow_vertical_compose_mmx_store("%2","mm0","mm2","mm4","mm6")
+
+        "2:                                          \n\t"
+        "sub $32, %%"FF_REG_d"                       \n\t"
+        "jge 1b                                      \n\t"
+        :"+d"(i)
+        :"r"(b0),"r"(b1),"r"(b2),"r"(b3),"r"(b4),"r"(b5));
+}
+#endif //HAVE_7REGS
+
+#if HAVE_6REGS
+#define snow_inner_add_yblock_sse2_header \
+    IDWTELEM * * dst_array = sb->line + src_y;\
+    x86_reg tmp;\
+    __asm__ volatile(\
+             "mov  %7, %%"FF_REG_c"          \n\t"\
+             "mov  %6, %2                    \n\t"\
+             "mov  %4, %%"FF_REG_S"          \n\t"\
+             "pxor %%xmm7, %%xmm7            \n\t" /* 0 */\
+             "pcmpeqd %%xmm3, %%xmm3         \n\t"\
+             "psllw $15, %%xmm3              \n\t"\
+             "psrlw $12, %%xmm3              \n\t" /* FRAC_BITS >> 1 */\
+             "1:                             \n\t"\
+             "mov %1, %%"FF_REG_D"           \n\t"\
+             "mov (%%"FF_REG_D"), %%"FF_REG_D" \n\t"\
+             "add %3, %%"FF_REG_D"           \n\t"
+
+#define snow_inner_add_yblock_sse2_start_8(out_reg1, out_reg2, ptr_offset, s_offset)\
+             "mov "FF_PTR_SIZE"*"ptr_offset"(%%"FF_REG_a"), %%"FF_REG_d"; \n\t"\
+             "movq (%%"FF_REG_d"), %%"out_reg1"                           \n\t"\
+             "movq (%%"FF_REG_d", %%"FF_REG_c"), %%"out_reg2"             \n\t"\
+             "punpcklbw %%xmm7, %%"out_reg1" \n\t"\
+             "punpcklbw %%xmm7, %%"out_reg2" \n\t"\
+             "movq "s_offset"(%%"FF_REG_S"), %%xmm0    \n\t"\
+             "movq "s_offset"+16(%%"FF_REG_S"), %%xmm4 \n\t"\
+             "punpcklbw %%xmm7, %%xmm0       \n\t"\
+             "punpcklbw %%xmm7, %%xmm4       \n\t"\
+             "pmullw %%xmm0, %%"out_reg1"    \n\t"\
+             "pmullw %%xmm4, %%"out_reg2"    \n\t"
+
+#define snow_inner_add_yblock_sse2_start_16(out_reg1, out_reg2, ptr_offset, s_offset)\
+             "mov "FF_PTR_SIZE"*"ptr_offset"(%%"FF_REG_a"), %%"FF_REG_d"; \n\t"\
+             "movq (%%"FF_REG_d"), %%"out_reg1"                           \n\t"\
+             "movq 8(%%"FF_REG_d"), %%"out_reg2"                          \n\t"\
+             "punpcklbw %%xmm7, %%"out_reg1" \n\t"\
+             "punpcklbw %%xmm7, %%"out_reg2" \n\t"\
+             "movq "s_offset"(%%"FF_REG_S"), %%xmm0   \n\t"\
+             "movq "s_offset"+8(%%"FF_REG_S"), %%xmm4 \n\t"\
+             "punpcklbw %%xmm7, %%xmm0       \n\t"\
+             "punpcklbw %%xmm7, %%xmm4       \n\t"\
+             "pmullw %%xmm0, %%"out_reg1"    \n\t"\
+             "pmullw %%xmm4, %%"out_reg2"    \n\t"
+
+#define snow_inner_add_yblock_sse2_accum_8(ptr_offset, s_offset) \
+             snow_inner_add_yblock_sse2_start_8("xmm2", "xmm6", ptr_offset, s_offset)\
+             "paddusw %%xmm2, %%xmm1         \n\t"\
+             "paddusw %%xmm6, %%xmm5         \n\t"
+
+#define snow_inner_add_yblock_sse2_accum_16(ptr_offset, s_offset) \
+             snow_inner_add_yblock_sse2_start_16("xmm2", "xmm6", ptr_offset, s_offset)\
+             "paddusw %%xmm2, %%xmm1         \n\t"\
+             "paddusw %%xmm6, %%xmm5         \n\t"
+
+#define snow_inner_add_yblock_sse2_end_common1\
+             "add $32, %%"FF_REG_S"                            \n\t"\
+             "add %%"FF_REG_c", %0                             \n\t"\
+             "add %%"FF_REG_c", "FF_PTR_SIZE"*3(%%"FF_REG_a"); \n\t"\
+             "add %%"FF_REG_c", "FF_PTR_SIZE"*2(%%"FF_REG_a"); \n\t"\
+             "add %%"FF_REG_c", "FF_PTR_SIZE"*1(%%"FF_REG_a"); \n\t"\
+             "add %%"FF_REG_c", (%%"FF_REG_a")                 \n\t"
+
+#define snow_inner_add_yblock_sse2_end_common2\
+             "jnz 1b                         \n\t"\
+             :"+m"(dst8),"+m"(dst_array),"=&r"(tmp)\
+             :\
+             "rm"((x86_reg)(src_x<<1)),"m"(obmc),"a"(block),"m"(b_h),"m"(src_stride):\
+             XMM_CLOBBERS("%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7", )\
+             "%"FF_REG_c"","%"FF_REG_S"","%"FF_REG_D"","%"FF_REG_d"");
+
+#define snow_inner_add_yblock_sse2_end_8\
+             "sal $1, %%"FF_REG_c"                \n\t"\
+             "add"FF_OPSIZE" $"FF_PTR_SIZE"*2, %1 \n\t"\
+             snow_inner_add_yblock_sse2_end_common1\
+             "sar $1, %%"FF_REG_c"           \n\t"\
+             "sub $2, %2                     \n\t"\
+             snow_inner_add_yblock_sse2_end_common2
+
+#define snow_inner_add_yblock_sse2_end_16\
+             "add"FF_OPSIZE" $"FF_PTR_SIZE"*1, %1 \n\t"\
+             snow_inner_add_yblock_sse2_end_common1\
+             "dec %2                         \n\t"\
+             snow_inner_add_yblock_sse2_end_common2
+
+static void inner_add_yblock_bw_8_obmc_16_bh_even_sse2(const uint8_t *obmc, const x86_reg obmc_stride, uint8_t * * block, int b_w, x86_reg b_h,
+                      int src_x, int src_y, x86_reg src_stride, slice_buffer * sb, int add, uint8_t * dst8){
+snow_inner_add_yblock_sse2_header
+snow_inner_add_yblock_sse2_start_8("xmm1", "xmm5", "3", "0")
+snow_inner_add_yblock_sse2_accum_8("2", "8")
+snow_inner_add_yblock_sse2_accum_8("1", "128")
+snow_inner_add_yblock_sse2_accum_8("0", "136")
+
+             "mov %0, %%"FF_REG_d"           \n\t"
+             "movdqa (%%"FF_REG_D"), %%xmm0  \n\t"
+             "movdqa %%xmm1, %%xmm2          \n\t"
+
+             "punpckhwd %%xmm7, %%xmm1       \n\t"
+             "punpcklwd %%xmm7, %%xmm2       \n\t"
+             "paddd %%xmm2, %%xmm0           \n\t"
+             "movdqa 16(%%"FF_REG_D"), %%xmm2\n\t"
+             "paddd %%xmm1, %%xmm2           \n\t"
+             "paddd %%xmm3, %%xmm0           \n\t"
+             "paddd %%xmm3, %%xmm2           \n\t"
+
+             "mov %1, %%"FF_REG_D"           \n\t"
+             "mov "FF_PTR_SIZE"(%%"FF_REG_D"), %%"FF_REG_D"; \n\t"
+             "add %3, %%"FF_REG_D"           \n\t"
+
+             "movdqa (%%"FF_REG_D"), %%xmm4  \n\t"
+             "movdqa %%xmm5, %%xmm6          \n\t"
+             "punpckhwd %%xmm7, %%xmm5       \n\t"
+             "punpcklwd %%xmm7, %%xmm6       \n\t"
+             "paddd %%xmm6, %%xmm4           \n\t"
+             "movdqa 16(%%"FF_REG_D"), %%xmm6\n\t"
+             "paddd %%xmm5, %%xmm6           \n\t"
+             "paddd %%xmm3, %%xmm4           \n\t"
+             "paddd %%xmm3, %%xmm6           \n\t"
+
+             "psrad $8, %%xmm0               \n\t" /* FRAC_BITS. */
+             "psrad $8, %%xmm2               \n\t" /* FRAC_BITS. */
+             "packssdw %%xmm2, %%xmm0        \n\t"
+             "packuswb %%xmm7, %%xmm0        \n\t"
+             "movq %%xmm0, (%%"FF_REG_d")    \n\t"
+
+             "psrad $8, %%xmm4               \n\t" /* FRAC_BITS. */
+             "psrad $8, %%xmm6               \n\t" /* FRAC_BITS. */
+             "packssdw %%xmm6, %%xmm4        \n\t"
+             "packuswb %%xmm7, %%xmm4        \n\t"
+             "movq %%xmm4, (%%"FF_REG_d",%%"FF_REG_c"); \n\t"
+snow_inner_add_yblock_sse2_end_8
+}
+
+static void inner_add_yblock_bw_16_obmc_32_sse2(const uint8_t *obmc, const x86_reg obmc_stride, uint8_t * * block, int b_w, x86_reg b_h,
+                      int src_x, int src_y, x86_reg src_stride, slice_buffer * sb, int add, uint8_t * dst8){
+snow_inner_add_yblock_sse2_header
+snow_inner_add_yblock_sse2_start_16("xmm1", "xmm5", "3", "0")
+snow_inner_add_yblock_sse2_accum_16("2", "16")
+snow_inner_add_yblock_sse2_accum_16("1", "512")
+snow_inner_add_yblock_sse2_accum_16("0", "528")
+
+             "mov %0, %%"FF_REG_d"           \n\t"
+             "psrlw $4, %%xmm1               \n\t"
+             "psrlw $4, %%xmm5               \n\t"
+             "paddw   (%%"FF_REG_D"), %%xmm1 \n\t"
+             "paddw 16(%%"FF_REG_D"), %%xmm5 \n\t"
+             "paddw %%xmm3, %%xmm1           \n\t"
+             "paddw %%xmm3, %%xmm5           \n\t"
+             "psraw $4, %%xmm1               \n\t" /* FRAC_BITS. */
+             "psraw $4, %%xmm5               \n\t" /* FRAC_BITS. */
+             "packuswb %%xmm5, %%xmm1        \n\t"
+
+             "movdqu %%xmm1, (%%"FF_REG_d")  \n\t"
+
+snow_inner_add_yblock_sse2_end_16
+}
+
+#define snow_inner_add_yblock_mmx_header \
+    IDWTELEM * * dst_array = sb->line + src_y;\
+    x86_reg tmp;\
+    __asm__ volatile(\
+             "mov  %7, %%"FF_REG_c"          \n\t"\
+             "mov  %6, %2                    \n\t"\
+             "mov  %4, %%"FF_REG_S"          \n\t"\
+             "pxor %%mm7, %%mm7              \n\t" /* 0 */\
+             "pcmpeqd %%mm3, %%mm3           \n\t"\
+             "psllw $15, %%mm3               \n\t"\
+             "psrlw $12, %%mm3               \n\t" /* FRAC_BITS >> 1 */\
+             "1:                             \n\t"\
+             "mov %1, %%"FF_REG_D"           \n\t"\
+             "mov (%%"FF_REG_D"), %%"FF_REG_D" \n\t"\
+             "add %3, %%"FF_REG_D"           \n\t"
+
+#define snow_inner_add_yblock_mmx_start(out_reg1, out_reg2, ptr_offset, s_offset, d_offset)\
+             "mov "FF_PTR_SIZE"*"ptr_offset"(%%"FF_REG_a"), %%"FF_REG_d"; \n\t"\
+             "movd "d_offset"(%%"FF_REG_d"), %%"out_reg1"                 \n\t"\
+             "movd "d_offset"+4(%%"FF_REG_d"), %%"out_reg2"               \n\t"\
+             "punpcklbw %%mm7, %%"out_reg1" \n\t"\
+             "punpcklbw %%mm7, %%"out_reg2" \n\t"\
+             "movd "s_offset"(%%"FF_REG_S"), %%mm0   \n\t"\
+             "movd "s_offset"+4(%%"FF_REG_S"), %%mm4 \n\t"\
+             "punpcklbw %%mm7, %%mm0       \n\t"\
+             "punpcklbw %%mm7, %%mm4       \n\t"\
+             "pmullw %%mm0, %%"out_reg1"   \n\t"\
+             "pmullw %%mm4, %%"out_reg2"   \n\t"
+
+#define snow_inner_add_yblock_mmx_accum(ptr_offset, s_offset, d_offset) \
+             snow_inner_add_yblock_mmx_start("mm2", "mm6", ptr_offset, s_offset, d_offset)\
+             "paddusw %%mm2, %%mm1         \n\t"\
+             "paddusw %%mm6, %%mm5         \n\t"
+
+#define snow_inner_add_yblock_mmx_mix(read_offset, write_offset)\
+             "mov %0, %%"FF_REG_d"           \n\t"\
+             "psrlw $4, %%mm1                \n\t"\
+             "psrlw $4, %%mm5                \n\t"\
+             "paddw "read_offset"(%%"FF_REG_D"), %%mm1   \n\t"\
+             "paddw "read_offset"+8(%%"FF_REG_D"), %%mm5 \n\t"\
+             "paddw %%mm3, %%mm1             \n\t"\
+             "paddw %%mm3, %%mm5             \n\t"\
+             "psraw $4, %%mm1                \n\t"\
+             "psraw $4, %%mm5                \n\t"\
+             "packuswb %%mm5, %%mm1          \n\t"\
+             "movq %%mm1, "write_offset"(%%"FF_REG_d") \n\t"
+
+#define snow_inner_add_yblock_mmx_end(s_step)\
+             "add $"s_step", %%"FF_REG_S"                      \n\t"\
+             "add %%"FF_REG_c", "FF_PTR_SIZE"*3(%%"FF_REG_a"); \n\t"\
+             "add %%"FF_REG_c", "FF_PTR_SIZE"*2(%%"FF_REG_a"); \n\t"\
+             "add %%"FF_REG_c", "FF_PTR_SIZE"*1(%%"FF_REG_a"); \n\t"\
+             "add %%"FF_REG_c", (%%"FF_REG_a")                 \n\t"\
+             "add"FF_OPSIZE " $"FF_PTR_SIZE"*1, %1             \n\t"\
+             "add %%"FF_REG_c", %0                             \n\t"\
+             "dec %2                         \n\t"\
+             "jnz 1b                         \n\t"\
+             :"+m"(dst8),"+m"(dst_array),"=&r"(tmp)\
+             :\
+             "rm"((x86_reg)(src_x<<1)),"m"(obmc),"a"(block),"m"(b_h),"m"(src_stride):\
+             "%"FF_REG_c"","%"FF_REG_S"","%"FF_REG_D"","%"FF_REG_d"");
+
+static void inner_add_yblock_bw_8_obmc_16_mmx(const uint8_t *obmc, const x86_reg obmc_stride, uint8_t * * block, int b_w, x86_reg b_h,
+                      int src_x, int src_y, x86_reg src_stride, slice_buffer * sb, int add, uint8_t * dst8){
+snow_inner_add_yblock_mmx_header
+snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "0", "0")
+snow_inner_add_yblock_mmx_accum("2", "8", "0")
+snow_inner_add_yblock_mmx_accum("1", "128", "0")
+snow_inner_add_yblock_mmx_accum("0", "136", "0")
+snow_inner_add_yblock_mmx_mix("0", "0")
+snow_inner_add_yblock_mmx_end("16")
+}
+
+static void inner_add_yblock_bw_16_obmc_32_mmx(const uint8_t *obmc, const x86_reg obmc_stride, uint8_t * * block, int b_w, x86_reg b_h,
+                      int src_x, int src_y, x86_reg src_stride, slice_buffer * sb, int add, uint8_t * dst8){
+snow_inner_add_yblock_mmx_header
+snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "0", "0")
+snow_inner_add_yblock_mmx_accum("2", "16", "0")
+snow_inner_add_yblock_mmx_accum("1", "512", "0")
+snow_inner_add_yblock_mmx_accum("0", "528", "0")
+snow_inner_add_yblock_mmx_mix("0", "0")
+
+snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "8", "8")
+snow_inner_add_yblock_mmx_accum("2", "24", "8")
+snow_inner_add_yblock_mmx_accum("1", "520", "8")
+snow_inner_add_yblock_mmx_accum("0", "536", "8")
+snow_inner_add_yblock_mmx_mix("16", "8")
+snow_inner_add_yblock_mmx_end("32")
+}
+
+static void ff_snow_inner_add_yblock_sse2(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
+                           int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
+
+    if (b_w == 16)
+        inner_add_yblock_bw_16_obmc_32_sse2(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
+    else if (b_w == 8 && obmc_stride == 16) {
+        if (!(b_h & 1))
+            inner_add_yblock_bw_8_obmc_16_bh_even_sse2(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
+        else
+            inner_add_yblock_bw_8_obmc_16_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
+    } else
+         ff_snow_inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
+}
+
+static void ff_snow_inner_add_yblock_mmx(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
+                          int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
+    if (b_w == 16)
+        inner_add_yblock_bw_16_obmc_32_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
+    else if (b_w == 8 && obmc_stride == 16)
+        inner_add_yblock_bw_8_obmc_16_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
+    else
+        ff_snow_inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
+}
+#endif /* HAVE_6REGS */
+
+#endif /* HAVE_INLINE_ASM */
+
+av_cold void ff_dwt_init_x86(SnowDWTContext *c)
+{
+#if HAVE_INLINE_ASM
+    int mm_flags = av_get_cpu_flags();
+
+    if (mm_flags & AV_CPU_FLAG_MMX) {
+        if(mm_flags & AV_CPU_FLAG_SSE2 & 0){
+            c->horizontal_compose97i = ff_snow_horizontal_compose97i_sse2;
+#if HAVE_7REGS
+            c->vertical_compose97i = ff_snow_vertical_compose97i_sse2;
+#endif
+#if HAVE_6REGS
+            c->inner_add_yblock = ff_snow_inner_add_yblock_sse2;
+#endif
+        }
+        else{
+            if (mm_flags & AV_CPU_FLAG_MMXEXT) {
+            c->horizontal_compose97i = ff_snow_horizontal_compose97i_mmx;
+#if HAVE_7REGS
+            c->vertical_compose97i = ff_snow_vertical_compose97i_mmx;
+#endif
+            }
+#if HAVE_6REGS
+            c->inner_add_yblock = ff_snow_inner_add_yblock_mmx;
+#endif
+        }
+    }
+#endif /* HAVE_INLINE_ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/svq1enc_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/svq1enc_init.c
new file mode 100644
index 000000000..40b4b0e18
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/svq1enc_init.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2007 Loren Merritt
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/svq1enc.h"
+
+int ff_ssd_int8_vs_int16_mmx(const int8_t *pix1, const int16_t *pix2,
+                             intptr_t size);
+int ff_ssd_int8_vs_int16_sse2(const int8_t *pix1, const int16_t *pix2,
+                              intptr_t size);
+
+av_cold void ff_svq1enc_init_x86(SVQ1EncContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->ssd_int8_vs_int16 = ff_ssd_int8_vs_int16_mmx;
+    }
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->ssd_int8_vs_int16 = ff_ssd_int8_vs_int16_sse2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/synth_filter_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/synth_filter_init.c
new file mode 100644
index 000000000..35e2b47a3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/synth_filter_init.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2012-2014 Christophe Gisquet <christophe.gisquet@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/synth_filter.h"
+
+#define SYNTH_FILTER_FUNC(opt)                                                 \
+void ff_synth_filter_inner_##opt(float *synth_buf_ptr, float synth_buf2[32],   \
+                                 const float window[512],                      \
+                                 float out[32], intptr_t offset, float scale); \
+static void synth_filter_##opt(FFTContext *imdct,                              \
+                               float *synth_buf_ptr, int *synth_buf_offset,    \
+                               float synth_buf2[32], const float window[512],  \
+                               float out[32], const float in[32], float scale) \
+{                                                                              \
+    float *synth_buf= synth_buf_ptr + *synth_buf_offset;                       \
+                                                                               \
+    imdct->imdct_half(imdct, synth_buf, in);                                   \
+                                                                               \
+    ff_synth_filter_inner_##opt(synth_buf, synth_buf2, window,                 \
+                                out, *synth_buf_offset, scale);                \
+                                                                               \
+    *synth_buf_offset = (*synth_buf_offset - 32) & 511;                        \
+}                                                                              \
+
+#if HAVE_X86ASM
+#if ARCH_X86_32
+SYNTH_FILTER_FUNC(sse)
+#endif
+SYNTH_FILTER_FUNC(sse2)
+SYNTH_FILTER_FUNC(avx)
+SYNTH_FILTER_FUNC(fma3)
+#endif /* HAVE_X86ASM */
+
+av_cold void ff_synth_filter_init_x86(SynthFilterContext *s)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+#if ARCH_X86_32
+    if (EXTERNAL_SSE(cpu_flags)) {
+        s->synth_filter_float = synth_filter_sse;
+    }
+#endif
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        s->synth_filter_float = synth_filter_sse2;
+    }
+    if (EXTERNAL_AVX_FAST(cpu_flags)) {
+        s->synth_filter_float = synth_filter_avx;
+    }
+    if (EXTERNAL_FMA3_FAST(cpu_flags)) {
+        s->synth_filter_float = synth_filter_fma3;
+    }
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/takdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/takdsp_init.c
new file mode 100644
index 000000000..fe0c846af
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/takdsp_init.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2015 Paul B Mahol
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavcodec/takdsp.h"
+#include "libavutil/x86/cpu.h"
+#include "config.h"
+
+void ff_tak_decorrelate_ls_sse2(int32_t *p1, int32_t *p2, int length);
+void ff_tak_decorrelate_sr_sse2(int32_t *p1, int32_t *p2, int length);
+void ff_tak_decorrelate_sm_sse2(int32_t *p1, int32_t *p2, int length);
+void ff_tak_decorrelate_sf_sse4(int32_t *p1, int32_t *p2, int length, int dshift, int dfactor);
+
+av_cold void ff_takdsp_init_x86(TAKDSPContext *c)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->decorrelate_ls = ff_tak_decorrelate_ls_sse2;
+        c->decorrelate_sr = ff_tak_decorrelate_sr_sse2;
+        c->decorrelate_sm = ff_tak_decorrelate_sm_sse2;
+    }
+
+    if (EXTERNAL_SSE4(cpu_flags)) {
+        c->decorrelate_sf = ff_tak_decorrelate_sf_sse4;
+    }
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/ttadsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/ttadsp_init.c
new file mode 100644
index 000000000..7441c9776
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/ttadsp_init.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2014 James Almer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavcodec/ttadsp.h"
+#include "libavutil/x86/cpu.h"
+#include "config.h"
+
+void ff_tta_filter_process_ssse3(int32_t *qm, int32_t *dx, int32_t *dl,
+                                 int32_t *error, int32_t *in, int32_t shift,
+                                 int32_t round);
+void ff_tta_filter_process_sse4(int32_t *qm, int32_t *dx, int32_t *dl,
+                                int32_t *error, int32_t *in, int32_t shift,
+                                int32_t round);
+
+av_cold void ff_ttadsp_init_x86(TTADSPContext *c)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSSE3(cpu_flags))
+        c->filter_process = ff_tta_filter_process_ssse3;
+    if (EXTERNAL_SSE4(cpu_flags))
+        c->filter_process = ff_tta_filter_process_sse4;
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/ttaencdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/ttaencdsp_init.c
new file mode 100644
index 000000000..61971a428
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/ttaencdsp_init.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2014-2016 James Almer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavcodec/ttaencdsp.h"
+#include "libavutil/x86/cpu.h"
+#include "config.h"
+
+void ff_ttaenc_filter_process_ssse3(int32_t *qm, int32_t *dx, int32_t *dl,
+                                    int32_t *error, int32_t *in, int32_t shift,
+                                    int32_t round);
+void ff_ttaenc_filter_process_sse4(int32_t *qm, int32_t *dx, int32_t *dl,
+                                   int32_t *error, int32_t *in, int32_t shift,
+                                   int32_t round);
+
+av_cold void ff_ttaencdsp_init_x86(TTAEncDSPContext *c)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSSE3(cpu_flags))
+        c->filter_process = ff_ttaenc_filter_process_ssse3;
+    if (EXTERNAL_SSE4(cpu_flags))
+        c->filter_process = ff_ttaenc_filter_process_sse4;
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/utvideodsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/utvideodsp_init.c
new file mode 100644
index 000000000..2b436c6c5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/utvideodsp_init.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2017 Paul B Mahol
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/utvideodsp.h"
+
+void ff_restore_rgb_planes_sse2(uint8_t *src_r, uint8_t *src_g, uint8_t *src_b,
+                                ptrdiff_t linesize_r, ptrdiff_t linesize_g,
+                                ptrdiff_t linesize_b, int width, int height);
+void ff_restore_rgb_planes_avx2(uint8_t *src_r, uint8_t *src_g, uint8_t *src_b,
+                                ptrdiff_t linesize_r, ptrdiff_t linesize_g,
+                                ptrdiff_t linesize_b, int width, int height);
+
+void ff_restore_rgb_planes10_sse2(uint16_t *src_r, uint16_t *src_g, uint16_t *src_b,
+                                  ptrdiff_t linesize_r, ptrdiff_t linesize_g,
+                                  ptrdiff_t linesize_b, int width, int height);
+void ff_restore_rgb_planes10_avx2(uint16_t *src_r, uint16_t *src_g, uint16_t *src_b,
+                                  ptrdiff_t linesize_r, ptrdiff_t linesize_g,
+                                  ptrdiff_t linesize_b, int width, int height);
+
+av_cold void ff_utvideodsp_init_x86(UTVideoDSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->restore_rgb_planes   = ff_restore_rgb_planes_sse2;
+        c->restore_rgb_planes10 = ff_restore_rgb_planes10_sse2;
+    }
+    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+        c->restore_rgb_planes   = ff_restore_rgb_planes_avx2;
+        c->restore_rgb_planes10 = ff_restore_rgb_planes10_avx2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/v210-init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/v210-init.c
new file mode 100644
index 000000000..cb9a6cbd6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/v210-init.c
@@ -0,0 +1,56 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/cpu.h"
+#include "libavcodec/v210dec.h"
+
+extern void ff_v210_planar_unpack_unaligned_ssse3(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
+extern void ff_v210_planar_unpack_unaligned_avx(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
+extern void ff_v210_planar_unpack_unaligned_avx2(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
+
+extern void ff_v210_planar_unpack_aligned_ssse3(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
+extern void ff_v210_planar_unpack_aligned_avx(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
+extern void ff_v210_planar_unpack_aligned_avx2(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
+
+av_cold void ff_v210_x86_init(V210DecContext *s)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (s->aligned_input) {
+        if (cpu_flags & AV_CPU_FLAG_SSSE3)
+            s->unpack_frame = ff_v210_planar_unpack_aligned_ssse3;
+
+        if (HAVE_AVX_EXTERNAL && cpu_flags & AV_CPU_FLAG_AVX)
+            s->unpack_frame = ff_v210_planar_unpack_aligned_avx;
+
+        if (HAVE_AVX2_EXTERNAL && cpu_flags & AV_CPU_FLAG_AVX2)
+            s->unpack_frame = ff_v210_planar_unpack_aligned_avx2;
+    }
+    else {
+        if (cpu_flags & AV_CPU_FLAG_SSSE3)
+            s->unpack_frame = ff_v210_planar_unpack_unaligned_ssse3;
+
+        if (HAVE_AVX_EXTERNAL && cpu_flags & AV_CPU_FLAG_AVX)
+            s->unpack_frame = ff_v210_planar_unpack_unaligned_avx;
+
+        if (HAVE_AVX2_EXTERNAL && cpu_flags & AV_CPU_FLAG_AVX2)
+            s->unpack_frame = ff_v210_planar_unpack_unaligned_avx2;
+    }
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/v210enc_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/v210enc_init.c
new file mode 100644
index 000000000..e997b4b67
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/v210enc_init.c
@@ -0,0 +1,54 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/v210enc.h"
+
+void ff_v210_planar_pack_8_ssse3(const uint8_t *y, const uint8_t *u,
+                                 const uint8_t *v, uint8_t *dst,
+                                 ptrdiff_t width);
+void ff_v210_planar_pack_8_avx(const uint8_t *y, const uint8_t *u,
+                               const uint8_t *v, uint8_t *dst, ptrdiff_t width);
+void ff_v210_planar_pack_8_avx2(const uint8_t *y, const uint8_t *u,
+                                const uint8_t *v, uint8_t *dst, ptrdiff_t width);
+void ff_v210_planar_pack_10_ssse3(const uint16_t *y, const uint16_t *u,
+                                  const uint16_t *v, uint8_t *dst,
+                                  ptrdiff_t width);
+void ff_v210_planar_pack_10_avx2(const uint16_t *y, const uint16_t *u,
+                                 const uint16_t *v, uint8_t *dst,
+                                 ptrdiff_t width);
+
+av_cold void ff_v210enc_init_x86(V210EncContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        s->pack_line_8 = ff_v210_planar_pack_8_ssse3;
+        s->pack_line_10 = ff_v210_planar_pack_10_ssse3;
+    }
+
+    if (EXTERNAL_AVX(cpu_flags))
+        s->pack_line_8 = ff_v210_planar_pack_8_avx;
+
+    if (EXTERNAL_AVX2(cpu_flags)) {
+        s->sample_factor_8  = 2;
+        s->pack_line_8      = ff_v210_planar_pack_8_avx2;
+        s->sample_factor_10 = 2;
+        s->pack_line_10     = ff_v210_planar_pack_10_avx2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vc1dsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vc1dsp.h
new file mode 100644
index 000000000..fdd4de181
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vc1dsp.h
@@ -0,0 +1,29 @@
+/*
+ * VC-1 and WMV3 decoder - X86 DSP init functions
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_VC1DSP_H
+#define AVCODEC_X86_VC1DSP_H
+
+#include "libavcodec/vc1dsp.h"
+
+void ff_vc1dsp_init_mmx(VC1DSPContext *dsp);
+void ff_vc1dsp_init_mmxext(VC1DSPContext *dsp);
+
+#endif /* AVCODEC_X86_VC1DSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vc1dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vc1dsp_init.c
new file mode 100644
index 000000000..8e0c284cc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vc1dsp_init.c
@@ -0,0 +1,168 @@
+/*
+ * VC-1 and WMV3 - DSP functions MMX-optimized
+ * Copyright (c) 2007 Christophe GISQUET <christophe.gisquet@free.fr>
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavcodec/vc1dsp.h"
+#include "fpel.h"
+#include "vc1dsp.h"
+#include "config.h"
+
+#define LOOP_FILTER(EXT) \
+void ff_vc1_v_loop_filter4_ ## EXT(uint8_t *src, int stride, int pq); \
+void ff_vc1_h_loop_filter4_ ## EXT(uint8_t *src, int stride, int pq); \
+void ff_vc1_v_loop_filter8_ ## EXT(uint8_t *src, int stride, int pq); \
+void ff_vc1_h_loop_filter8_ ## EXT(uint8_t *src, int stride, int pq); \
+\
+static void vc1_v_loop_filter16_ ## EXT(uint8_t *src, int stride, int pq) \
+{ \
+    ff_vc1_v_loop_filter8_ ## EXT(src,   stride, pq); \
+    ff_vc1_v_loop_filter8_ ## EXT(src+8, stride, pq); \
+} \
+\
+static void vc1_h_loop_filter16_ ## EXT(uint8_t *src, int stride, int pq) \
+{ \
+    ff_vc1_h_loop_filter8_ ## EXT(src,          stride, pq); \
+    ff_vc1_h_loop_filter8_ ## EXT(src+8*stride, stride, pq); \
+}
+
+#if HAVE_X86ASM
+LOOP_FILTER(mmxext)
+LOOP_FILTER(sse2)
+LOOP_FILTER(ssse3)
+
+void ff_vc1_h_loop_filter8_sse4(uint8_t *src, int stride, int pq);
+
+static void vc1_h_loop_filter16_sse4(uint8_t *src, int stride, int pq)
+{
+    ff_vc1_h_loop_filter8_sse4(src,          stride, pq);
+    ff_vc1_h_loop_filter8_sse4(src+8*stride, stride, pq);
+}
+
+#define DECLARE_FUNCTION(OP, DEPTH, INSN)                       \
+    static void OP##vc1_mspel_mc00_##DEPTH##INSN(uint8_t *dst,          \
+                             const uint8_t *src, ptrdiff_t stride, int rnd) \
+    {                                                                       \
+        ff_ ## OP ## pixels ## DEPTH ## INSN(dst, src, stride, DEPTH);     \
+    }
+
+DECLARE_FUNCTION(put_,  8, _mmx)
+DECLARE_FUNCTION(put_, 16, _mmx)
+DECLARE_FUNCTION(avg_,  8, _mmx)
+DECLARE_FUNCTION(avg_, 16, _mmx)
+DECLARE_FUNCTION(avg_,  8, _mmxext)
+DECLARE_FUNCTION(avg_, 16, _mmxext)
+DECLARE_FUNCTION(put_, 16, _sse2)
+DECLARE_FUNCTION(avg_, 16, _sse2)
+
+#endif /* HAVE_X86ASM */
+
+void ff_put_vc1_chroma_mc8_nornd_mmx  (uint8_t *dst, uint8_t *src,
+                                       ptrdiff_t stride, int h, int x, int y);
+void ff_avg_vc1_chroma_mc8_nornd_mmxext(uint8_t *dst, uint8_t *src,
+                                        ptrdiff_t stride, int h, int x, int y);
+void ff_avg_vc1_chroma_mc8_nornd_3dnow(uint8_t *dst, uint8_t *src,
+                                       ptrdiff_t stride, int h, int x, int y);
+void ff_put_vc1_chroma_mc8_nornd_ssse3(uint8_t *dst, uint8_t *src,
+                                       ptrdiff_t stride, int h, int x, int y);
+void ff_avg_vc1_chroma_mc8_nornd_ssse3(uint8_t *dst, uint8_t *src,
+                                       ptrdiff_t stride, int h, int x, int y);
+void ff_vc1_inv_trans_4x4_dc_mmxext(uint8_t *dest, ptrdiff_t linesize,
+                                    int16_t *block);
+void ff_vc1_inv_trans_4x8_dc_mmxext(uint8_t *dest, ptrdiff_t linesize,
+                                    int16_t *block);
+void ff_vc1_inv_trans_8x4_dc_mmxext(uint8_t *dest, ptrdiff_t linesize,
+                                    int16_t *block);
+void ff_vc1_inv_trans_8x8_dc_mmxext(uint8_t *dest, ptrdiff_t linesize,
+                                    int16_t *block);
+
+
+av_cold void ff_vc1dsp_init_x86(VC1DSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (HAVE_6REGS && INLINE_MMX(cpu_flags))
+        if (EXTERNAL_MMX(cpu_flags))
+        ff_vc1dsp_init_mmx(dsp);
+
+    if (HAVE_6REGS && INLINE_MMXEXT(cpu_flags))
+        if (EXTERNAL_MMXEXT(cpu_flags))
+        ff_vc1dsp_init_mmxext(dsp);
+
+#define ASSIGN_LF(EXT) \
+        dsp->vc1_v_loop_filter4  = ff_vc1_v_loop_filter4_ ## EXT; \
+        dsp->vc1_h_loop_filter4  = ff_vc1_h_loop_filter4_ ## EXT; \
+        dsp->vc1_v_loop_filter8  = ff_vc1_v_loop_filter8_ ## EXT; \
+        dsp->vc1_h_loop_filter8  = ff_vc1_h_loop_filter8_ ## EXT; \
+        dsp->vc1_v_loop_filter16 = vc1_v_loop_filter16_ ## EXT; \
+        dsp->vc1_h_loop_filter16 = vc1_h_loop_filter16_ ## EXT
+
+#if HAVE_X86ASM
+    if (EXTERNAL_MMX(cpu_flags)) {
+        dsp->put_no_rnd_vc1_chroma_pixels_tab[0] = ff_put_vc1_chroma_mc8_nornd_mmx;
+
+        dsp->put_vc1_mspel_pixels_tab[1][0]      = put_vc1_mspel_mc00_8_mmx;
+        dsp->put_vc1_mspel_pixels_tab[0][0]      = put_vc1_mspel_mc00_16_mmx;
+        dsp->avg_vc1_mspel_pixels_tab[1][0]      = avg_vc1_mspel_mc00_8_mmx;
+        dsp->avg_vc1_mspel_pixels_tab[0][0]      = avg_vc1_mspel_mc00_16_mmx;
+    }
+    if (EXTERNAL_AMD3DNOW(cpu_flags)) {
+        dsp->avg_no_rnd_vc1_chroma_pixels_tab[0] = ff_avg_vc1_chroma_mc8_nornd_3dnow;
+    }
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        ASSIGN_LF(mmxext);
+        dsp->avg_no_rnd_vc1_chroma_pixels_tab[0] = ff_avg_vc1_chroma_mc8_nornd_mmxext;
+
+        dsp->avg_vc1_mspel_pixels_tab[1][0]      = avg_vc1_mspel_mc00_8_mmxext;
+        dsp->avg_vc1_mspel_pixels_tab[0][0]      = avg_vc1_mspel_mc00_16_mmxext;
+
+        dsp->vc1_inv_trans_8x8_dc                = ff_vc1_inv_trans_8x8_dc_mmxext;
+        dsp->vc1_inv_trans_4x8_dc                = ff_vc1_inv_trans_4x8_dc_mmxext;
+        dsp->vc1_inv_trans_8x4_dc                = ff_vc1_inv_trans_8x4_dc_mmxext;
+        dsp->vc1_inv_trans_4x4_dc                = ff_vc1_inv_trans_4x4_dc_mmxext;
+    }
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        dsp->vc1_v_loop_filter8  = ff_vc1_v_loop_filter8_sse2;
+        dsp->vc1_h_loop_filter8  = ff_vc1_h_loop_filter8_sse2;
+        dsp->vc1_v_loop_filter16 = vc1_v_loop_filter16_sse2;
+        dsp->vc1_h_loop_filter16 = vc1_h_loop_filter16_sse2;
+
+        dsp->put_vc1_mspel_pixels_tab[0][0]      = put_vc1_mspel_mc00_16_sse2;
+        dsp->avg_vc1_mspel_pixels_tab[0][0]      = avg_vc1_mspel_mc00_16_sse2;
+    }
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        ASSIGN_LF(ssse3);
+        dsp->put_no_rnd_vc1_chroma_pixels_tab[0] = ff_put_vc1_chroma_mc8_nornd_ssse3;
+        dsp->avg_no_rnd_vc1_chroma_pixels_tab[0] = ff_avg_vc1_chroma_mc8_nornd_ssse3;
+    }
+    if (EXTERNAL_SSE4(cpu_flags)) {
+        dsp->vc1_h_loop_filter8  = ff_vc1_h_loop_filter8_sse4;
+        dsp->vc1_h_loop_filter16 = vc1_h_loop_filter16_sse4;
+    }
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vc1dsp_mmx.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vc1dsp_mmx.c
new file mode 100644
index 000000000..45c8a68f2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vc1dsp_mmx.c
@@ -0,0 +1,486 @@
+/*
+ * VC-1 and WMV3 - DSP functions MMX-optimized
+ * Copyright (c) 2007 Christophe GISQUET <christophe.gisquet@free.fr>
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "libavutil/cpu.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/vc1dsp.h"
+#include "constants.h"
+#include "fpel.h"
+#include "vc1dsp.h"
+
+#if HAVE_6REGS && HAVE_INLINE_ASM && HAVE_MMX_EXTERNAL
+
+void ff_vc1_put_ver_16b_shift2_mmx(int16_t *dst,
+                                   const uint8_t *src, x86_reg stride,
+                                   int rnd, int64_t shift);
+void ff_vc1_put_hor_16b_shift2_mmx(uint8_t *dst, x86_reg stride,
+                                   const int16_t *src, int rnd);
+void ff_vc1_avg_hor_16b_shift2_mmxext(uint8_t *dst, x86_reg stride,
+                                      const int16_t *src, int rnd);
+
+#define OP_PUT(S,D)
+#define OP_AVG(S,D) "pavgb " #S ", " #D " \n\t"
+
+/** Add rounder from mm7 to mm3 and pack result at destination */
+#define NORMALIZE_MMX(SHIFT)                                    \
+     "paddw     %%mm7, %%mm3           \n\t" /* +bias-r */      \
+     "paddw     %%mm7, %%mm4           \n\t" /* +bias-r */      \
+     "psraw     "SHIFT", %%mm3         \n\t"                    \
+     "psraw     "SHIFT", %%mm4         \n\t"
+
+#define TRANSFER_DO_PACK(OP)                    \
+     "packuswb  %%mm4, %%mm3           \n\t"    \
+     OP((%2), %%mm3)                            \
+     "movq      %%mm3, (%2)            \n\t"
+
+#define TRANSFER_DONT_PACK(OP)                  \
+     OP(0(%2), %%mm3)                           \
+     OP(8(%2), %%mm4)                           \
+     "movq      %%mm3, 0(%2)           \n\t"    \
+     "movq      %%mm4, 8(%2)           \n\t"
+
+/** @see MSPEL_FILTER13_CORE for use as UNPACK macro */
+#define DO_UNPACK(reg)  "punpcklbw %%mm0, " reg "\n\t"
+#define DONT_UNPACK(reg)
+
+/** Compute the rounder 32-r or 8-r and unpacks it to mm7 */
+#define LOAD_ROUNDER_MMX(ROUND)                 \
+     "movd      "ROUND", %%mm7         \n\t"    \
+     "punpcklwd %%mm7, %%mm7           \n\t"    \
+     "punpckldq %%mm7, %%mm7           \n\t"
+
+/**
+ * Purely vertical or horizontal 1/2 shift interpolation.
+ * Sacrifice mm6 for *9 factor.
+ */
+#define VC1_SHIFT2(OP, OPNAME)\
+static void OPNAME ## vc1_shift2_mmx(uint8_t *dst, const uint8_t *src,\
+                                     x86_reg stride, int rnd, x86_reg offset)\
+{\
+    rnd = 8-rnd;\
+    __asm__ volatile(\
+        "mov       $8, %%"FF_REG_c"        \n\t"\
+        LOAD_ROUNDER_MMX("%5")\
+        "movq      "MANGLE(ff_pw_9)", %%mm6\n\t"\
+        "1:                                \n\t"\
+        "movd      0(%0   ), %%mm3         \n\t"\
+        "movd      4(%0   ), %%mm4         \n\t"\
+        "movd      0(%0,%2), %%mm1         \n\t"\
+        "movd      4(%0,%2), %%mm2         \n\t"\
+        "add       %2, %0                  \n\t"\
+        "punpcklbw %%mm0, %%mm3            \n\t"\
+        "punpcklbw %%mm0, %%mm4            \n\t"\
+        "punpcklbw %%mm0, %%mm1            \n\t"\
+        "punpcklbw %%mm0, %%mm2            \n\t"\
+        "paddw     %%mm1, %%mm3            \n\t"\
+        "paddw     %%mm2, %%mm4            \n\t"\
+        "movd      0(%0,%3), %%mm1         \n\t"\
+        "movd      4(%0,%3), %%mm2         \n\t"\
+        "pmullw    %%mm6, %%mm3            \n\t" /* 0,9,9,0*/\
+        "pmullw    %%mm6, %%mm4            \n\t" /* 0,9,9,0*/\
+        "punpcklbw %%mm0, %%mm1            \n\t"\
+        "punpcklbw %%mm0, %%mm2            \n\t"\
+        "psubw     %%mm1, %%mm3            \n\t" /*-1,9,9,0*/\
+        "psubw     %%mm2, %%mm4            \n\t" /*-1,9,9,0*/\
+        "movd      0(%0,%2), %%mm1         \n\t"\
+        "movd      4(%0,%2), %%mm2         \n\t"\
+        "punpcklbw %%mm0, %%mm1            \n\t"\
+        "punpcklbw %%mm0, %%mm2            \n\t"\
+        "psubw     %%mm1, %%mm3            \n\t" /*-1,9,9,-1*/\
+        "psubw     %%mm2, %%mm4            \n\t" /*-1,9,9,-1*/\
+        NORMALIZE_MMX("$4")\
+        "packuswb  %%mm4, %%mm3            \n\t"\
+        OP((%1), %%mm3)\
+        "movq      %%mm3, (%1)             \n\t"\
+        "add       %6, %0                  \n\t"\
+        "add       %4, %1                  \n\t"\
+        "dec       %%"FF_REG_c"            \n\t"\
+        "jnz 1b                            \n\t"\
+        : "+r"(src),  "+r"(dst)\
+        : "r"(offset), "r"(-2*offset), "g"(stride), "m"(rnd),\
+          "g"(stride-offset)\
+          NAMED_CONSTRAINTS_ADD(ff_pw_9)\
+        : "%"FF_REG_c, "memory"\
+    );\
+}
+
+VC1_SHIFT2(OP_PUT, put_)
+VC1_SHIFT2(OP_AVG, avg_)
+
+/**
+ * Core of the 1/4 and 3/4 shift bicubic interpolation.
+ *
+ * @param UNPACK  Macro unpacking arguments from 8 to 16 bits (can be empty).
+ * @param MOVQ    "movd 1" or "movq 2", if data read is already unpacked.
+ * @param A1      Address of 1st tap (beware of unpacked/packed).
+ * @param A2      Address of 2nd tap
+ * @param A3      Address of 3rd tap
+ * @param A4      Address of 4th tap
+ */
+#define MSPEL_FILTER13_CORE(UNPACK, MOVQ, A1, A2, A3, A4)       \
+     MOVQ "*0+"A1", %%mm1       \n\t"                           \
+     MOVQ "*4+"A1", %%mm2       \n\t"                           \
+     UNPACK("%%mm1")                                            \
+     UNPACK("%%mm2")                                            \
+     "pmullw    "MANGLE(ff_pw_3)", %%mm1\n\t"                   \
+     "pmullw    "MANGLE(ff_pw_3)", %%mm2\n\t"                   \
+     MOVQ "*0+"A2", %%mm3       \n\t"                           \
+     MOVQ "*4+"A2", %%mm4       \n\t"                           \
+     UNPACK("%%mm3")                                            \
+     UNPACK("%%mm4")                                            \
+     "pmullw    %%mm6, %%mm3    \n\t" /* *18 */                 \
+     "pmullw    %%mm6, %%mm4    \n\t" /* *18 */                 \
+     "psubw     %%mm1, %%mm3    \n\t" /* 18,-3 */               \
+     "psubw     %%mm2, %%mm4    \n\t" /* 18,-3 */               \
+     MOVQ "*0+"A4", %%mm1       \n\t"                           \
+     MOVQ "*4+"A4", %%mm2       \n\t"                           \
+     UNPACK("%%mm1")                                            \
+     UNPACK("%%mm2")                                            \
+     "psllw     $2, %%mm1       \n\t" /* 4* */                  \
+     "psllw     $2, %%mm2       \n\t" /* 4* */                  \
+     "psubw     %%mm1, %%mm3    \n\t" /* -4,18,-3 */            \
+     "psubw     %%mm2, %%mm4    \n\t" /* -4,18,-3 */            \
+     MOVQ "*0+"A3", %%mm1       \n\t"                           \
+     MOVQ "*4+"A3", %%mm2       \n\t"                           \
+     UNPACK("%%mm1")                                            \
+     UNPACK("%%mm2")                                            \
+     "pmullw    %%mm5, %%mm1    \n\t" /* *53 */                 \
+     "pmullw    %%mm5, %%mm2    \n\t" /* *53 */                 \
+     "paddw     %%mm1, %%mm3    \n\t" /* 4,53,18,-3 */          \
+     "paddw     %%mm2, %%mm4    \n\t" /* 4,53,18,-3 */
+
+/**
+ * Macro to build the vertical 16 bits version of vc1_put_shift[13].
+ * Here, offset=src_stride. Parameters passed A1 to A4 must use
+ * %3 (src_stride) and %4 (3*src_stride).
+ *
+ * @param  NAME   Either 1 or 3
+ * @see MSPEL_FILTER13_CORE for information on A1->A4
+ */
+#define MSPEL_FILTER13_VER_16B(NAME, A1, A2, A3, A4)                    \
+static void                                                             \
+vc1_put_ver_16b_ ## NAME ## _mmx(int16_t *dst, const uint8_t *src,      \
+                                 x86_reg src_stride,                   \
+                                 int rnd, int64_t shift)                \
+{                                                                       \
+    int h = 8;                                                          \
+    src -= src_stride;                                                  \
+    __asm__ volatile(                                                       \
+        LOAD_ROUNDER_MMX("%5")                                          \
+        "movq      "MANGLE(ff_pw_53)", %%mm5\n\t"                       \
+        "movq      "MANGLE(ff_pw_18)", %%mm6\n\t"                       \
+        ".p2align 3                \n\t"                                \
+        "1:                        \n\t"                                \
+        MSPEL_FILTER13_CORE(DO_UNPACK, "movd  1", A1, A2, A3, A4)       \
+        NORMALIZE_MMX("%6")                                             \
+        TRANSFER_DONT_PACK(OP_PUT)                                      \
+        /* Last 3 (in fact 4) bytes on the line */                      \
+        "movd      8+"A1", %%mm1   \n\t"                                \
+        DO_UNPACK("%%mm1")                                              \
+        "movq      %%mm1, %%mm3    \n\t"                                \
+        "paddw     %%mm1, %%mm1    \n\t"                                \
+        "paddw     %%mm3, %%mm1    \n\t" /* 3* */                       \
+        "movd      8+"A2", %%mm3   \n\t"                                \
+        DO_UNPACK("%%mm3")                                              \
+        "pmullw    %%mm6, %%mm3    \n\t" /* *18 */                      \
+        "psubw     %%mm1, %%mm3    \n\t" /*18,-3 */                     \
+        "movd      8+"A3", %%mm1   \n\t"                                \
+        DO_UNPACK("%%mm1")                                              \
+        "pmullw    %%mm5, %%mm1    \n\t" /* *53 */                      \
+        "paddw     %%mm1, %%mm3    \n\t" /*53,18,-3 */                  \
+        "movd      8+"A4", %%mm1   \n\t"                                \
+        DO_UNPACK("%%mm1")                                              \
+        "psllw     $2, %%mm1       \n\t" /* 4* */                       \
+        "psubw     %%mm1, %%mm3    \n\t"                                \
+        "paddw     %%mm7, %%mm3    \n\t"                                \
+        "psraw     %6, %%mm3       \n\t"                                \
+        "movq      %%mm3, 16(%2)   \n\t"                                \
+        "add       %3, %1          \n\t"                                \
+        "add       $24, %2         \n\t"                                \
+        "decl      %0              \n\t"                                \
+        "jnz 1b                    \n\t"                                \
+        : "+r"(h), "+r" (src),  "+r" (dst)                              \
+        : "r"(src_stride), "r"(3*src_stride),                           \
+          "m"(rnd), "m"(shift)                                          \
+          NAMED_CONSTRAINTS_ADD(ff_pw_3,ff_pw_53,ff_pw_18)              \
+        : "memory"                                                      \
+    );                                                                  \
+}
+
+/**
+ * Macro to build the horizontal 16 bits version of vc1_put_shift[13].
+ * Here, offset=16 bits, so parameters passed A1 to A4 should be simple.
+ *
+ * @param  NAME   Either 1 or 3
+ * @see MSPEL_FILTER13_CORE for information on A1->A4
+ */
+#define MSPEL_FILTER13_HOR_16B(NAME, A1, A2, A3, A4, OP, OPNAME)        \
+static void                                                             \
+OPNAME ## vc1_hor_16b_ ## NAME ## _mmx(uint8_t *dst, x86_reg stride,    \
+                                 const int16_t *src, int rnd)           \
+{                                                                       \
+    int h = 8;                                                          \
+    src -= 1;                                                           \
+    rnd -= (-4+58+13-3)*256; /* Add -256 bias */                        \
+    __asm__ volatile(                                                       \
+        LOAD_ROUNDER_MMX("%4")                                          \
+        "movq      "MANGLE(ff_pw_18)", %%mm6   \n\t"                    \
+        "movq      "MANGLE(ff_pw_53)", %%mm5   \n\t"                    \
+        ".p2align 3                \n\t"                                \
+        "1:                        \n\t"                                \
+        MSPEL_FILTER13_CORE(DONT_UNPACK, "movq 2", A1, A2, A3, A4)      \
+        NORMALIZE_MMX("$7")                                             \
+        /* Remove bias */                                               \
+        "paddw     "MANGLE(ff_pw_128)", %%mm3  \n\t"                    \
+        "paddw     "MANGLE(ff_pw_128)", %%mm4  \n\t"                    \
+        TRANSFER_DO_PACK(OP)                                            \
+        "add       $24, %1         \n\t"                                \
+        "add       %3, %2          \n\t"                                \
+        "decl      %0              \n\t"                                \
+        "jnz 1b                    \n\t"                                \
+        : "+r"(h), "+r" (src),  "+r" (dst)                              \
+        : "r"(stride), "m"(rnd)                                         \
+          NAMED_CONSTRAINTS_ADD(ff_pw_3,ff_pw_18,ff_pw_53,ff_pw_128)    \
+        : "memory"                                                      \
+    );                                                                  \
+}
+
+/**
+ * Macro to build the 8 bits, any direction, version of vc1_put_shift[13].
+ * Here, offset=src_stride. Parameters passed A1 to A4 must use
+ * %3 (offset) and %4 (3*offset).
+ *
+ * @param  NAME   Either 1 or 3
+ * @see MSPEL_FILTER13_CORE for information on A1->A4
+ */
+#define MSPEL_FILTER13_8B(NAME, A1, A2, A3, A4, OP, OPNAME)             \
+static void                                                             \
+OPNAME ## vc1_## NAME ## _mmx(uint8_t *dst, const uint8_t *src,         \
+                        x86_reg stride, int rnd, x86_reg offset)      \
+{                                                                       \
+    int h = 8;                                                          \
+    src -= offset;                                                      \
+    rnd = 32-rnd;                                                       \
+    __asm__ volatile (                                                      \
+        LOAD_ROUNDER_MMX("%6")                                          \
+        "movq      "MANGLE(ff_pw_53)", %%mm5       \n\t"                \
+        "movq      "MANGLE(ff_pw_18)", %%mm6       \n\t"                \
+        ".p2align 3                \n\t"                                \
+        "1:                        \n\t"                                \
+        MSPEL_FILTER13_CORE(DO_UNPACK, "movd   1", A1, A2, A3, A4)      \
+        NORMALIZE_MMX("$6")                                             \
+        TRANSFER_DO_PACK(OP)                                            \
+        "add       %5, %1          \n\t"                                \
+        "add       %5, %2          \n\t"                                \
+        "decl      %0              \n\t"                                \
+        "jnz 1b                    \n\t"                                \
+        : "+r"(h), "+r" (src),  "+r" (dst)                              \
+        : "r"(offset), "r"(3*offset), "g"(stride), "m"(rnd)             \
+          NAMED_CONSTRAINTS_ADD(ff_pw_53,ff_pw_18,ff_pw_3)              \
+        : "memory"                                                      \
+    );                                                                  \
+}
+
+/** 1/4 shift bicubic interpolation */
+MSPEL_FILTER13_8B     (shift1, "0(%1,%4  )", "0(%1,%3,2)", "0(%1,%3  )", "0(%1     )", OP_PUT, put_)
+MSPEL_FILTER13_8B     (shift1, "0(%1,%4  )", "0(%1,%3,2)", "0(%1,%3  )", "0(%1     )", OP_AVG, avg_)
+MSPEL_FILTER13_VER_16B(shift1, "0(%1,%4  )", "0(%1,%3,2)", "0(%1,%3  )", "0(%1     )")
+MSPEL_FILTER13_HOR_16B(shift1, "2*3(%1)", "2*2(%1)", "2*1(%1)", "2*0(%1)", OP_PUT, put_)
+MSPEL_FILTER13_HOR_16B(shift1, "2*3(%1)", "2*2(%1)", "2*1(%1)", "2*0(%1)", OP_AVG, avg_)
+
+/** 3/4 shift bicubic interpolation */
+MSPEL_FILTER13_8B     (shift3, "0(%1     )", "0(%1,%3  )", "0(%1,%3,2)", "0(%1,%4  )", OP_PUT, put_)
+MSPEL_FILTER13_8B     (shift3, "0(%1     )", "0(%1,%3  )", "0(%1,%3,2)", "0(%1,%4  )", OP_AVG, avg_)
+MSPEL_FILTER13_VER_16B(shift3, "0(%1     )", "0(%1,%3  )", "0(%1,%3,2)", "0(%1,%4  )")
+MSPEL_FILTER13_HOR_16B(shift3, "2*0(%1)", "2*1(%1)", "2*2(%1)", "2*3(%1)", OP_PUT, put_)
+MSPEL_FILTER13_HOR_16B(shift3, "2*0(%1)", "2*1(%1)", "2*2(%1)", "2*3(%1)", OP_AVG, avg_)
+
+typedef void (*vc1_mspel_mc_filter_ver_16bits)(int16_t *dst, const uint8_t *src, x86_reg src_stride, int rnd, int64_t shift);
+typedef void (*vc1_mspel_mc_filter_hor_16bits)(uint8_t *dst, x86_reg dst_stride, const int16_t *src, int rnd);
+typedef void (*vc1_mspel_mc_filter_8bits)(uint8_t *dst, const uint8_t *src, x86_reg stride, int rnd, x86_reg offset);
+
+/**
+ * Interpolate fractional pel values by applying proper vertical then
+ * horizontal filter.
+ *
+ * @param  dst     Destination buffer for interpolated pels.
+ * @param  src     Source buffer.
+ * @param  stride  Stride for both src and dst buffers.
+ * @param  hmode   Horizontal filter (expressed in quarter pixels shift).
+ * @param  hmode   Vertical filter.
+ * @param  rnd     Rounding bias.
+ */
+#define VC1_MSPEL_MC(OP, INSTR)\
+static void OP ## vc1_mspel_mc(uint8_t *dst, const uint8_t *src, int stride,\
+                               int hmode, int vmode, int rnd)\
+{\
+    static const vc1_mspel_mc_filter_ver_16bits vc1_put_shift_ver_16bits[] =\
+         { NULL, vc1_put_ver_16b_shift1_mmx, ff_vc1_put_ver_16b_shift2_mmx, vc1_put_ver_16b_shift3_mmx };\
+    static const vc1_mspel_mc_filter_hor_16bits vc1_put_shift_hor_16bits[] =\
+         { NULL, OP ## vc1_hor_16b_shift1_mmx, ff_vc1_ ## OP ## hor_16b_shift2_ ## INSTR, OP ## vc1_hor_16b_shift3_mmx };\
+    static const vc1_mspel_mc_filter_8bits vc1_put_shift_8bits[] =\
+         { NULL, OP ## vc1_shift1_mmx, OP ## vc1_shift2_mmx, OP ## vc1_shift3_mmx };\
+\
+    __asm__ volatile(\
+        "pxor %%mm0, %%mm0         \n\t"\
+        ::: "memory"\
+    );\
+\
+    if (vmode) { /* Vertical filter to apply */\
+        if (hmode) { /* Horizontal filter to apply, output to tmp */\
+            static const int shift_value[] = { 0, 5, 1, 5 };\
+            int              shift = (shift_value[hmode]+shift_value[vmode])>>1;\
+            int              r;\
+            LOCAL_ALIGNED(16, int16_t, tmp, [12*8]);\
+\
+            r = (1<<(shift-1)) + rnd-1;\
+            vc1_put_shift_ver_16bits[vmode](tmp, src-1, stride, r, shift);\
+\
+            vc1_put_shift_hor_16bits[hmode](dst, stride, tmp+1, 64-rnd);\
+            return;\
+        }\
+        else { /* No horizontal filter, output 8 lines to dst */\
+            vc1_put_shift_8bits[vmode](dst, src, stride, 1-rnd, stride);\
+            return;\
+        }\
+    }\
+\
+    /* Horizontal mode with no vertical mode */\
+    vc1_put_shift_8bits[hmode](dst, src, stride, rnd, 1);\
+} \
+static void OP ## vc1_mspel_mc_16(uint8_t *dst, const uint8_t *src, \
+                                  int stride, int hmode, int vmode, int rnd)\
+{ \
+    OP ## vc1_mspel_mc(dst + 0, src + 0, stride, hmode, vmode, rnd); \
+    OP ## vc1_mspel_mc(dst + 8, src + 8, stride, hmode, vmode, rnd); \
+    dst += 8*stride; src += 8*stride; \
+    OP ## vc1_mspel_mc(dst + 0, src + 0, stride, hmode, vmode, rnd); \
+    OP ## vc1_mspel_mc(dst + 8, src + 8, stride, hmode, vmode, rnd); \
+}
+
+VC1_MSPEL_MC(put_, mmx)
+VC1_MSPEL_MC(avg_, mmxext)
+
+/** Macro to ease bicubic filter interpolation functions declarations */
+#define DECLARE_FUNCTION(a, b)                                          \
+static void put_vc1_mspel_mc ## a ## b ## _mmx(uint8_t *dst,            \
+                                               const uint8_t *src,      \
+                                               ptrdiff_t stride,        \
+                                               int rnd)                 \
+{                                                                       \
+     put_vc1_mspel_mc(dst, src, stride, a, b, rnd);                     \
+}\
+static void avg_vc1_mspel_mc ## a ## b ## _mmxext(uint8_t *dst,         \
+                                                  const uint8_t *src,   \
+                                                  ptrdiff_t stride,     \
+                                                  int rnd)              \
+{                                                                       \
+     avg_vc1_mspel_mc(dst, src, stride, a, b, rnd);                     \
+}\
+static void put_vc1_mspel_mc ## a ## b ## _16_mmx(uint8_t *dst,         \
+                                                  const uint8_t *src,   \
+                                                  ptrdiff_t stride,     \
+                                                  int rnd)              \
+{                                                                       \
+     put_vc1_mspel_mc_16(dst, src, stride, a, b, rnd);                  \
+}\
+static void avg_vc1_mspel_mc ## a ## b ## _16_mmxext(uint8_t *dst,      \
+                                                     const uint8_t *src,\
+                                                     ptrdiff_t stride,  \
+                                                     int rnd)           \
+{                                                                       \
+     avg_vc1_mspel_mc_16(dst, src, stride, a, b, rnd);                  \
+}
+
+DECLARE_FUNCTION(0, 1)
+DECLARE_FUNCTION(0, 2)
+DECLARE_FUNCTION(0, 3)
+
+DECLARE_FUNCTION(1, 0)
+DECLARE_FUNCTION(1, 1)
+DECLARE_FUNCTION(1, 2)
+DECLARE_FUNCTION(1, 3)
+
+DECLARE_FUNCTION(2, 0)
+DECLARE_FUNCTION(2, 1)
+DECLARE_FUNCTION(2, 2)
+DECLARE_FUNCTION(2, 3)
+
+DECLARE_FUNCTION(3, 0)
+DECLARE_FUNCTION(3, 1)
+DECLARE_FUNCTION(3, 2)
+DECLARE_FUNCTION(3, 3)
+
+#define FN_ASSIGN(OP, X, Y, INSN) \
+    dsp->OP##vc1_mspel_pixels_tab[1][X+4*Y] = OP##vc1_mspel_mc##X##Y##INSN; \
+    dsp->OP##vc1_mspel_pixels_tab[0][X+4*Y] = OP##vc1_mspel_mc##X##Y##_16##INSN
+
+av_cold void ff_vc1dsp_init_mmx(VC1DSPContext *dsp)
+{
+    FN_ASSIGN(put_, 0, 1, _mmx);
+    FN_ASSIGN(put_, 0, 2, _mmx);
+    FN_ASSIGN(put_, 0, 3, _mmx);
+
+    FN_ASSIGN(put_, 1, 0, _mmx);
+    FN_ASSIGN(put_, 1, 1, _mmx);
+    FN_ASSIGN(put_, 1, 2, _mmx);
+    FN_ASSIGN(put_, 1, 3, _mmx);
+
+    FN_ASSIGN(put_, 2, 0, _mmx);
+    FN_ASSIGN(put_, 2, 1, _mmx);
+    FN_ASSIGN(put_, 2, 2, _mmx);
+    FN_ASSIGN(put_, 2, 3, _mmx);
+
+    FN_ASSIGN(put_, 3, 0, _mmx);
+    FN_ASSIGN(put_, 3, 1, _mmx);
+    FN_ASSIGN(put_, 3, 2, _mmx);
+    FN_ASSIGN(put_, 3, 3, _mmx);
+}
+
+av_cold void ff_vc1dsp_init_mmxext(VC1DSPContext *dsp)
+{
+    FN_ASSIGN(avg_, 0, 1, _mmxext);
+    FN_ASSIGN(avg_, 0, 2, _mmxext);
+    FN_ASSIGN(avg_, 0, 3, _mmxext);
+
+    FN_ASSIGN(avg_, 1, 0, _mmxext);
+    FN_ASSIGN(avg_, 1, 1, _mmxext);
+    FN_ASSIGN(avg_, 1, 2, _mmxext);
+    FN_ASSIGN(avg_, 1, 3, _mmxext);
+
+    FN_ASSIGN(avg_, 2, 0, _mmxext);
+    FN_ASSIGN(avg_, 2, 1, _mmxext);
+    FN_ASSIGN(avg_, 2, 2, _mmxext);
+    FN_ASSIGN(avg_, 2, 3, _mmxext);
+
+    FN_ASSIGN(avg_, 3, 0, _mmxext);
+    FN_ASSIGN(avg_, 3, 1, _mmxext);
+    FN_ASSIGN(avg_, 3, 2, _mmxext);
+    FN_ASSIGN(avg_, 3, 3, _mmxext);
+}
+#endif /* HAVE_6REGS && HAVE_INLINE_ASM && HAVE_MMX_EXTERNAL */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/videodsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/videodsp_init.c
new file mode 100644
index 000000000..eeebb4154
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/videodsp_init.c
@@ -0,0 +1,309 @@
+/*
+ * Copyright (C) 2002-2012 Michael Niedermayer
+ * Copyright (C) 2012 Ronald S. Bultje
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
+#include "libavutil/common.h"
+#include "libavutil/cpu.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/videodsp.h"
+
+#if HAVE_X86ASM
+typedef void emu_edge_vfix_func(uint8_t *dst, x86_reg dst_stride,
+                                const uint8_t *src, x86_reg src_stride,
+                                x86_reg start_y, x86_reg end_y, x86_reg bh);
+typedef void emu_edge_vvar_func(uint8_t *dst, x86_reg dst_stride,
+                                const uint8_t *src, x86_reg src_stride,
+                                x86_reg start_y, x86_reg end_y, x86_reg bh,
+                                x86_reg w);
+
+extern emu_edge_vfix_func ff_emu_edge_vfix1_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix2_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix3_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix4_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix5_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix6_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix7_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix8_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix9_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix10_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix11_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix12_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix13_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix14_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix15_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix16_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix17_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix18_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix19_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix20_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix21_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix22_mmx;
+#if ARCH_X86_32
+static emu_edge_vfix_func * const vfixtbl_mmx[22] = {
+    &ff_emu_edge_vfix1_mmx,  &ff_emu_edge_vfix2_mmx,  &ff_emu_edge_vfix3_mmx,
+    &ff_emu_edge_vfix4_mmx,  &ff_emu_edge_vfix5_mmx,  &ff_emu_edge_vfix6_mmx,
+    &ff_emu_edge_vfix7_mmx,  &ff_emu_edge_vfix8_mmx,  &ff_emu_edge_vfix9_mmx,
+    &ff_emu_edge_vfix10_mmx, &ff_emu_edge_vfix11_mmx, &ff_emu_edge_vfix12_mmx,
+    &ff_emu_edge_vfix13_mmx, &ff_emu_edge_vfix14_mmx, &ff_emu_edge_vfix15_mmx,
+    &ff_emu_edge_vfix16_mmx, &ff_emu_edge_vfix17_mmx, &ff_emu_edge_vfix18_mmx,
+    &ff_emu_edge_vfix19_mmx, &ff_emu_edge_vfix20_mmx, &ff_emu_edge_vfix21_mmx,
+    &ff_emu_edge_vfix22_mmx
+};
+#endif
+extern emu_edge_vvar_func ff_emu_edge_vvar_mmx;
+extern emu_edge_vfix_func ff_emu_edge_vfix16_sse;
+extern emu_edge_vfix_func ff_emu_edge_vfix17_sse;
+extern emu_edge_vfix_func ff_emu_edge_vfix18_sse;
+extern emu_edge_vfix_func ff_emu_edge_vfix19_sse;
+extern emu_edge_vfix_func ff_emu_edge_vfix20_sse;
+extern emu_edge_vfix_func ff_emu_edge_vfix21_sse;
+extern emu_edge_vfix_func ff_emu_edge_vfix22_sse;
+static emu_edge_vfix_func * const vfixtbl_sse[22] = {
+    ff_emu_edge_vfix1_mmx,  ff_emu_edge_vfix2_mmx,  ff_emu_edge_vfix3_mmx,
+    ff_emu_edge_vfix4_mmx,  ff_emu_edge_vfix5_mmx,  ff_emu_edge_vfix6_mmx,
+    ff_emu_edge_vfix7_mmx,  ff_emu_edge_vfix8_mmx,  ff_emu_edge_vfix9_mmx,
+    ff_emu_edge_vfix10_mmx, ff_emu_edge_vfix11_mmx, ff_emu_edge_vfix12_mmx,
+    ff_emu_edge_vfix13_mmx, ff_emu_edge_vfix14_mmx, ff_emu_edge_vfix15_mmx,
+    ff_emu_edge_vfix16_sse, ff_emu_edge_vfix17_sse, ff_emu_edge_vfix18_sse,
+    ff_emu_edge_vfix19_sse, ff_emu_edge_vfix20_sse, ff_emu_edge_vfix21_sse,
+    ff_emu_edge_vfix22_sse
+};
+extern emu_edge_vvar_func ff_emu_edge_vvar_sse;
+
+typedef void emu_edge_hfix_func(uint8_t *dst, x86_reg dst_stride,
+                                x86_reg start_x, x86_reg bh);
+typedef void emu_edge_hvar_func(uint8_t *dst, x86_reg dst_stride,
+                                x86_reg start_x, x86_reg n_words, x86_reg bh);
+
+extern emu_edge_hfix_func ff_emu_edge_hfix2_mmx;
+extern emu_edge_hfix_func ff_emu_edge_hfix4_mmx;
+extern emu_edge_hfix_func ff_emu_edge_hfix6_mmx;
+extern emu_edge_hfix_func ff_emu_edge_hfix8_mmx;
+extern emu_edge_hfix_func ff_emu_edge_hfix10_mmx;
+extern emu_edge_hfix_func ff_emu_edge_hfix12_mmx;
+extern emu_edge_hfix_func ff_emu_edge_hfix14_mmx;
+extern emu_edge_hfix_func ff_emu_edge_hfix16_mmx;
+extern emu_edge_hfix_func ff_emu_edge_hfix18_mmx;
+extern emu_edge_hfix_func ff_emu_edge_hfix20_mmx;
+extern emu_edge_hfix_func ff_emu_edge_hfix22_mmx;
+#if ARCH_X86_32
+static emu_edge_hfix_func * const hfixtbl_mmx[11] = {
+    ff_emu_edge_hfix2_mmx,  ff_emu_edge_hfix4_mmx,  ff_emu_edge_hfix6_mmx,
+    ff_emu_edge_hfix8_mmx,  ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx,
+    ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_mmx, ff_emu_edge_hfix18_mmx,
+    ff_emu_edge_hfix20_mmx, ff_emu_edge_hfix22_mmx
+};
+#endif
+extern emu_edge_hvar_func ff_emu_edge_hvar_mmx;
+extern emu_edge_hfix_func ff_emu_edge_hfix16_sse2;
+extern emu_edge_hfix_func ff_emu_edge_hfix18_sse2;
+extern emu_edge_hfix_func ff_emu_edge_hfix20_sse2;
+extern emu_edge_hfix_func ff_emu_edge_hfix22_sse2;
+static emu_edge_hfix_func * const hfixtbl_sse2[11] = {
+    ff_emu_edge_hfix2_mmx,  ff_emu_edge_hfix4_mmx,  ff_emu_edge_hfix6_mmx,
+    ff_emu_edge_hfix8_mmx,  ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx,
+    ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_sse2, ff_emu_edge_hfix18_sse2,
+    ff_emu_edge_hfix20_sse2, ff_emu_edge_hfix22_sse2
+};
+extern emu_edge_hvar_func ff_emu_edge_hvar_sse2;
+#if HAVE_AVX2_EXTERNAL
+extern emu_edge_hfix_func ff_emu_edge_hfix8_avx2;
+extern emu_edge_hfix_func ff_emu_edge_hfix10_avx2;
+extern emu_edge_hfix_func ff_emu_edge_hfix12_avx2;
+extern emu_edge_hfix_func ff_emu_edge_hfix14_avx2;
+extern emu_edge_hfix_func ff_emu_edge_hfix16_avx2;
+extern emu_edge_hfix_func ff_emu_edge_hfix18_avx2;
+extern emu_edge_hfix_func ff_emu_edge_hfix20_avx2;
+extern emu_edge_hfix_func ff_emu_edge_hfix22_avx2;
+static emu_edge_hfix_func * const hfixtbl_avx2[11] = {
+    ff_emu_edge_hfix2_mmx,  ff_emu_edge_hfix4_mmx,  ff_emu_edge_hfix6_mmx,
+    ff_emu_edge_hfix8_avx2,  ff_emu_edge_hfix10_avx2, ff_emu_edge_hfix12_avx2,
+    ff_emu_edge_hfix14_avx2, ff_emu_edge_hfix16_avx2, ff_emu_edge_hfix18_avx2,
+    ff_emu_edge_hfix20_avx2, ff_emu_edge_hfix22_avx2
+};
+extern emu_edge_hvar_func ff_emu_edge_hvar_avx2;
+#endif
+
+static av_always_inline void emulated_edge_mc(uint8_t *dst, const uint8_t *src,
+                                              ptrdiff_t dst_stride,
+                                              ptrdiff_t src_stride,
+                                              x86_reg block_w, x86_reg block_h,
+                                              x86_reg src_x, x86_reg src_y,
+                                              x86_reg w, x86_reg h,
+                                              emu_edge_vfix_func * const *vfix_tbl,
+                                              emu_edge_vvar_func *v_extend_var,
+                                              emu_edge_hfix_func * const *hfix_tbl,
+                                              emu_edge_hvar_func *h_extend_var)
+{
+    x86_reg start_y, start_x, end_y, end_x, src_y_add = 0, p;
+
+    if (!w || !h)
+        return;
+
+    av_assert2(block_w <= FFABS(dst_stride));
+
+    if (src_y >= h) {
+        src -= src_y*src_stride;
+        src_y_add = h - 1;
+        src_y     = h - 1;
+    } else if (src_y <= -block_h) {
+        src -= src_y*src_stride;
+        src_y_add = 1 - block_h;
+        src_y     = 1 - block_h;
+    }
+    if (src_x >= w) {
+        src   += w - 1 - src_x;
+        src_x  = w - 1;
+    } else if (src_x <= -block_w) {
+        src   += 1 - block_w - src_x;
+        src_x  = 1 - block_w;
+    }
+
+    start_y = FFMAX(0, -src_y);
+    start_x = FFMAX(0, -src_x);
+    end_y   = FFMIN(block_h, h-src_y);
+    end_x   = FFMIN(block_w, w-src_x);
+    av_assert2(start_x < end_x && block_w > 0);
+    av_assert2(start_y < end_y && block_h > 0);
+
+    // fill in the to-be-copied part plus all above/below
+    src += (src_y_add + start_y) * src_stride + start_x;
+    w = end_x - start_x;
+    if (w <= 22) {
+        vfix_tbl[w - 1](dst + start_x, dst_stride, src, src_stride,
+                        start_y, end_y, block_h);
+    } else {
+        v_extend_var(dst + start_x, dst_stride, src, src_stride,
+                     start_y, end_y, block_h, w);
+    }
+
+    // fill left
+    if (start_x) {
+        if (start_x <= 22) {
+            hfix_tbl[(start_x - 1) >> 1](dst, dst_stride, start_x, block_h);
+        } else {
+            h_extend_var(dst, dst_stride,
+                         start_x, (start_x + 1) >> 1, block_h);
+        }
+    }
+
+    // fill right
+    p = block_w - end_x;
+    if (p) {
+        if (p <= 22) {
+            hfix_tbl[(p - 1) >> 1](dst + end_x - (p & 1), dst_stride,
+                                   -!(p & 1), block_h);
+        } else {
+            h_extend_var(dst + end_x - (p & 1), dst_stride,
+                         -!(p & 1), (p + 1) >> 1, block_h);
+        }
+    }
+}
+
+#if ARCH_X86_32
+static av_noinline void emulated_edge_mc_mmx(uint8_t *buf, const uint8_t *src,
+                                             ptrdiff_t buf_stride,
+                                             ptrdiff_t src_stride,
+                                             int block_w, int block_h,
+                                             int src_x, int src_y, int w, int h)
+{
+    emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
+                     src_x, src_y, w, h, vfixtbl_mmx, &ff_emu_edge_vvar_mmx,
+                     hfixtbl_mmx, &ff_emu_edge_hvar_mmx);
+}
+
+static av_noinline void emulated_edge_mc_sse(uint8_t *buf, const uint8_t *src,
+                                             ptrdiff_t buf_stride,
+                                             ptrdiff_t src_stride,
+                                             int block_w, int block_h,
+                                             int src_x, int src_y, int w, int h)
+{
+    emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
+                     src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
+                     hfixtbl_mmx, &ff_emu_edge_hvar_mmx);
+}
+#endif
+
+static av_noinline void emulated_edge_mc_sse2(uint8_t *buf, const uint8_t *src,
+                                              ptrdiff_t buf_stride,
+                                              ptrdiff_t src_stride,
+                                              int block_w, int block_h,
+                                              int src_x, int src_y, int w,
+                                              int h)
+{
+    emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
+                     src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
+                     hfixtbl_sse2, &ff_emu_edge_hvar_sse2);
+}
+
+#if HAVE_AVX2_EXTERNAL
+static av_noinline void emulated_edge_mc_avx2(uint8_t *buf, const uint8_t *src,
+                                              ptrdiff_t buf_stride,
+                                              ptrdiff_t src_stride,
+                                              int block_w, int block_h,
+                                              int src_x, int src_y, int w,
+                                              int h)
+{
+    emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
+                     src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
+                     hfixtbl_avx2, &ff_emu_edge_hvar_avx2);
+}
+#endif /* HAVE_AVX2_EXTERNAL */
+#endif /* HAVE_X86ASM */
+
+void ff_prefetch_mmxext(uint8_t *buf, ptrdiff_t stride, int h);
+void ff_prefetch_3dnow(uint8_t *buf, ptrdiff_t stride, int h);
+
+av_cold void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+#if ARCH_X86_32
+    if (EXTERNAL_MMX(cpu_flags) && bpc <= 8) {
+        ctx->emulated_edge_mc = emulated_edge_mc_mmx;
+    }
+    if (EXTERNAL_AMD3DNOW(cpu_flags)) {
+        ctx->prefetch = ff_prefetch_3dnow;
+    }
+#endif /* ARCH_X86_32 */
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        ctx->prefetch = ff_prefetch_mmxext;
+    }
+#if ARCH_X86_32
+    if (EXTERNAL_SSE(cpu_flags) && bpc <= 8) {
+        ctx->emulated_edge_mc = emulated_edge_mc_sse;
+    }
+#endif /* ARCH_X86_32 */
+    if (EXTERNAL_SSE2(cpu_flags) && bpc <= 8) {
+        ctx->emulated_edge_mc = emulated_edge_mc_sse2;
+    }
+#if HAVE_AVX2_EXTERNAL
+    if (EXTERNAL_AVX2(cpu_flags) && bpc <= 8) {
+        ctx->emulated_edge_mc = emulated_edge_mc_avx2;
+    }
+#endif
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vorbisdsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vorbisdsp_init.c
new file mode 100644
index 000000000..bc1cc43a1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vorbisdsp_init.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2006 Loren Merritt <lorenm@u.washington.edu>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/vorbisdsp.h"
+
+void ff_vorbis_inverse_coupling_3dnow(float *mag, float *ang,
+                                      intptr_t blocksize);
+void ff_vorbis_inverse_coupling_sse(float *mag, float *ang,
+                                    intptr_t blocksize);
+
+av_cold void ff_vorbisdsp_init_x86(VorbisDSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+#if ARCH_X86_32
+    if (EXTERNAL_AMD3DNOW(cpu_flags))
+        dsp->vorbis_inverse_coupling = ff_vorbis_inverse_coupling_3dnow;
+#endif /* ARCH_X86_32 */
+    if (EXTERNAL_SSE(cpu_flags))
+        dsp->vorbis_inverse_coupling = ff_vorbis_inverse_coupling_sse;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp3dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp3dsp_init.c
new file mode 100644
index 000000000..1ba957643
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp3dsp_init.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2009 David Conrad <lessen42@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/vp3dsp.h"
+
+void ff_vp3_idct_put_mmx(uint8_t *dest, ptrdiff_t stride, int16_t *block);
+void ff_vp3_idct_add_mmx(uint8_t *dest, ptrdiff_t stride, int16_t *block);
+
+void ff_vp3_idct_put_sse2(uint8_t *dest, ptrdiff_t stride, int16_t *block);
+void ff_vp3_idct_add_sse2(uint8_t *dest, ptrdiff_t stride, int16_t *block);
+
+void ff_vp3_idct_dc_add_mmxext(uint8_t *dest, ptrdiff_t stride, int16_t *block);
+
+void ff_vp3_v_loop_filter_mmxext(uint8_t *src, ptrdiff_t stride,
+                                 int *bounding_values);
+void ff_vp3_h_loop_filter_mmxext(uint8_t *src, ptrdiff_t stride,
+                                 int *bounding_values);
+
+void ff_put_vp_no_rnd_pixels8_l2_mmx(uint8_t *dst, const uint8_t *a,
+                                     const uint8_t *b, ptrdiff_t stride,
+                                     int h);
+
+av_cold void ff_vp3dsp_init_x86(VP3DSPContext *c, int flags)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->put_no_rnd_pixels_l2 = ff_put_vp_no_rnd_pixels8_l2_mmx;
+#if ARCH_X86_32
+        c->idct_put  = ff_vp3_idct_put_mmx;
+        c->idct_add  = ff_vp3_idct_add_mmx;
+#endif
+    }
+
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        c->idct_dc_add = ff_vp3_idct_dc_add_mmxext;
+
+        if (!(flags & AV_CODEC_FLAG_BITEXACT)) {
+            c->v_loop_filter = ff_vp3_v_loop_filter_mmxext;
+            c->h_loop_filter = ff_vp3_h_loop_filter_mmxext;
+        }
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->idct_put  = ff_vp3_idct_put_sse2;
+        c->idct_add  = ff_vp3_idct_add_sse2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp56_arith.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp56_arith.h
new file mode 100644
index 000000000..810cc8dcd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp56_arith.h
@@ -0,0 +1,51 @@
+/**
+ * VP5 and VP6 compatible video decoder (arith decoder)
+ *
+ * Copyright (C) 2006  Aurelien Jacobs <aurel@gnuage.org>
+ * Copyright (C) 2010  Eli Friedman
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_VP56_ARITH_H
+#define AVCODEC_X86_VP56_ARITH_H
+
+#if HAVE_INLINE_ASM && HAVE_FAST_CMOV && HAVE_6REGS
+#define vp56_rac_get_prob vp56_rac_get_prob
+static av_always_inline int vp56_rac_get_prob(VP56RangeCoder *c, uint8_t prob)
+{
+    unsigned int code_word = vp56_rac_renorm(c);
+    unsigned int low = 1 + (((c->high - 1) * prob) >> 8);
+    unsigned int low_shift = low << 16;
+    int bit = 0;
+    c->code_word = code_word;
+
+    __asm__(
+        "subl  %4, %1      \n\t"
+        "subl  %3, %2      \n\t"
+        "setae %b0         \n\t"
+        "cmovb %4, %1      \n\t"
+        "cmovb %5, %2      \n\t"
+        : "+q"(bit), "+&r"(c->high), "+&r"(c->code_word)
+        : "r"(low_shift), "r"(low), "r"(code_word)
+    );
+
+    return bit;
+}
+#endif
+
+#endif /* AVCODEC_X86_VP56_ARITH_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp6dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp6dsp_init.c
new file mode 100644
index 000000000..ce498931d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp6dsp_init.c
@@ -0,0 +1,45 @@
+/*
+ * VP6 MMX/SSE2 optimizations
+ * Copyright (C) 2009  Sebastien Lucas <sebastien.lucas@gmail.com>
+ * Copyright (C) 2009  Zuxy Meng <zuxy.meng@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/vp56dsp.h"
+
+void ff_vp6_filter_diag4_mmx(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                             const int16_t *h_weights,const int16_t *v_weights);
+void ff_vp6_filter_diag4_sse2(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
+                              const int16_t *h_weights,const int16_t *v_weights);
+
+av_cold void ff_vp6dsp_init_x86(VP56DSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+#if ARCH_X86_32
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->vp6_filter_diag4 = ff_vp6_filter_diag4_mmx;
+    }
+#endif
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->vp6_filter_diag4 = ff_vp6_filter_diag4_sse2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp8dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp8dsp_init.c
new file mode 100644
index 000000000..397b2518c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp8dsp_init.c
@@ -0,0 +1,467 @@
+/*
+ * VP8 DSP functions x86-optimized
+ * Copyright (c) 2010 Ronald S. Bultje <rsbultje@gmail.com>
+ * Copyright (c) 2010 Fiona Glaser <fiona@x264.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/vp8dsp.h"
+
+#if HAVE_X86ASM
+
+/*
+ * MC functions
+ */
+void ff_put_vp8_epel4_h4_mmxext(uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel4_h6_mmxext(uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel4_v4_mmxext(uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel4_v6_mmxext(uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+
+void ff_put_vp8_epel8_h4_sse2  (uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel8_h6_sse2  (uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel8_v4_sse2  (uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel8_v6_sse2  (uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+
+void ff_put_vp8_epel4_h4_ssse3 (uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel4_h6_ssse3 (uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel4_v4_ssse3 (uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel4_v6_ssse3 (uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel8_h4_ssse3 (uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel8_h6_ssse3 (uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel8_v4_ssse3 (uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+void ff_put_vp8_epel8_v6_ssse3 (uint8_t *dst, ptrdiff_t dststride,
+                                uint8_t *src, ptrdiff_t srcstride,
+                                int height, int mx, int my);
+
+void ff_put_vp8_bilinear4_h_mmxext(uint8_t *dst, ptrdiff_t dststride,
+                                   uint8_t *src, ptrdiff_t srcstride,
+                                   int height, int mx, int my);
+void ff_put_vp8_bilinear8_h_sse2  (uint8_t *dst, ptrdiff_t dststride,
+                                   uint8_t *src, ptrdiff_t srcstride,
+                                   int height, int mx, int my);
+void ff_put_vp8_bilinear4_h_ssse3 (uint8_t *dst, ptrdiff_t dststride,
+                                   uint8_t *src, ptrdiff_t srcstride,
+                                   int height, int mx, int my);
+void ff_put_vp8_bilinear8_h_ssse3 (uint8_t *dst, ptrdiff_t dststride,
+                                   uint8_t *src, ptrdiff_t srcstride,
+                                   int height, int mx, int my);
+
+void ff_put_vp8_bilinear4_v_mmxext(uint8_t *dst, ptrdiff_t dststride,
+                                   uint8_t *src, ptrdiff_t srcstride,
+                                   int height, int mx, int my);
+void ff_put_vp8_bilinear8_v_sse2  (uint8_t *dst, ptrdiff_t dststride,
+                                   uint8_t *src, ptrdiff_t srcstride,
+                                   int height, int mx, int my);
+void ff_put_vp8_bilinear4_v_ssse3 (uint8_t *dst, ptrdiff_t dststride,
+                                   uint8_t *src, ptrdiff_t srcstride,
+                                   int height, int mx, int my);
+void ff_put_vp8_bilinear8_v_ssse3 (uint8_t *dst, ptrdiff_t dststride,
+                                   uint8_t *src, ptrdiff_t srcstride,
+                                   int height, int mx, int my);
+
+
+void ff_put_vp8_pixels8_mmx (uint8_t *dst, ptrdiff_t dststride,
+                             uint8_t *src, ptrdiff_t srcstride,
+                             int height, int mx, int my);
+void ff_put_vp8_pixels16_mmx(uint8_t *dst, ptrdiff_t dststride,
+                             uint8_t *src, ptrdiff_t srcstride,
+                             int height, int mx, int my);
+void ff_put_vp8_pixels16_sse(uint8_t *dst, ptrdiff_t dststride,
+                             uint8_t *src, ptrdiff_t srcstride,
+                             int height, int mx, int my);
+
+#define TAP_W16(OPT, FILTERTYPE, TAPTYPE) \
+static void ff_put_vp8_ ## FILTERTYPE ## 16_ ## TAPTYPE ## _ ## OPT( \
+    uint8_t *dst,  ptrdiff_t dststride, uint8_t *src, \
+    ptrdiff_t srcstride, int height, int mx, int my) \
+{ \
+    ff_put_vp8_ ## FILTERTYPE ## 8_ ## TAPTYPE ## _ ## OPT( \
+        dst,     dststride, src,     srcstride, height, mx, my); \
+    ff_put_vp8_ ## FILTERTYPE ## 8_ ## TAPTYPE ## _ ## OPT( \
+        dst + 8, dststride, src + 8, srcstride, height, mx, my); \
+}
+#define TAP_W8(OPT, FILTERTYPE, TAPTYPE) \
+static void ff_put_vp8_ ## FILTERTYPE ## 8_ ## TAPTYPE ## _ ## OPT( \
+    uint8_t *dst,  ptrdiff_t dststride, uint8_t *src, \
+    ptrdiff_t srcstride, int height, int mx, int my) \
+{ \
+    ff_put_vp8_ ## FILTERTYPE ## 4_ ## TAPTYPE ## _ ## OPT( \
+        dst,     dststride, src,     srcstride, height, mx, my); \
+    ff_put_vp8_ ## FILTERTYPE ## 4_ ## TAPTYPE ## _ ## OPT( \
+        dst + 4, dststride, src + 4, srcstride, height, mx, my); \
+}
+
+#if ARCH_X86_32
+TAP_W8 (mmxext, epel, h4)
+TAP_W8 (mmxext, epel, h6)
+TAP_W16(mmxext, epel, h6)
+TAP_W8 (mmxext, epel, v4)
+TAP_W8 (mmxext, epel, v6)
+TAP_W16(mmxext, epel, v6)
+TAP_W8 (mmxext, bilinear, h)
+TAP_W16(mmxext, bilinear, h)
+TAP_W8 (mmxext, bilinear, v)
+TAP_W16(mmxext, bilinear, v)
+#endif
+
+TAP_W16(sse2,  epel, h6)
+TAP_W16(sse2,  epel, v6)
+TAP_W16(sse2,  bilinear, h)
+TAP_W16(sse2,  bilinear, v)
+
+TAP_W16(ssse3, epel, h6)
+TAP_W16(ssse3, epel, v6)
+TAP_W16(ssse3, bilinear, h)
+TAP_W16(ssse3, bilinear, v)
+
+#define HVTAP(OPT, ALIGN, TAPNUMX, TAPNUMY, SIZE, MAXHEIGHT) \
+static void ff_put_vp8_epel ## SIZE ## _h ## TAPNUMX ## v ## TAPNUMY ## _ ## OPT( \
+    uint8_t *dst, ptrdiff_t dststride, uint8_t *src, \
+    ptrdiff_t srcstride, int height, int mx, int my) \
+{ \
+    LOCAL_ALIGNED(ALIGN, uint8_t, tmp, [SIZE * (MAXHEIGHT + TAPNUMY - 1)]); \
+    uint8_t *tmpptr = tmp + SIZE * (TAPNUMY / 2 - 1); \
+    src -= srcstride * (TAPNUMY / 2 - 1); \
+    ff_put_vp8_epel ## SIZE ## _h ## TAPNUMX ## _ ## OPT( \
+        tmp, SIZE,      src,    srcstride, height + TAPNUMY - 1, mx, my); \
+    ff_put_vp8_epel ## SIZE ## _v ## TAPNUMY ## _ ## OPT( \
+        dst, dststride, tmpptr, SIZE,      height,               mx, my); \
+}
+
+#if ARCH_X86_32
+#define HVTAPMMX(x, y) \
+HVTAP(mmxext, 8, x, y,  4,  8) \
+HVTAP(mmxext, 8, x, y,  8, 16)
+
+HVTAP(mmxext, 8, 6, 6, 16, 16)
+#else
+#define HVTAPMMX(x, y) \
+HVTAP(mmxext, 8, x, y,  4,  8)
+#endif
+
+HVTAPMMX(4, 4)
+HVTAPMMX(4, 6)
+HVTAPMMX(6, 4)
+HVTAPMMX(6, 6)
+
+#define HVTAPSSE2(x, y, w) \
+HVTAP(sse2,  16, x, y, w, 16) \
+HVTAP(ssse3, 16, x, y, w, 16)
+
+HVTAPSSE2(4, 4, 8)
+HVTAPSSE2(4, 6, 8)
+HVTAPSSE2(6, 4, 8)
+HVTAPSSE2(6, 6, 8)
+HVTAPSSE2(6, 6, 16)
+
+HVTAP(ssse3, 16, 4, 4, 4, 8)
+HVTAP(ssse3, 16, 4, 6, 4, 8)
+HVTAP(ssse3, 16, 6, 4, 4, 8)
+HVTAP(ssse3, 16, 6, 6, 4, 8)
+
+#define HVBILIN(OPT, ALIGN, SIZE, MAXHEIGHT) \
+static void ff_put_vp8_bilinear ## SIZE ## _hv_ ## OPT( \
+    uint8_t *dst, ptrdiff_t dststride, uint8_t *src, \
+    ptrdiff_t srcstride, int height, int mx, int my) \
+{ \
+    LOCAL_ALIGNED(ALIGN, uint8_t, tmp, [SIZE * (MAXHEIGHT + 2)]); \
+    ff_put_vp8_bilinear ## SIZE ## _h_ ## OPT( \
+        tmp, SIZE,      src, srcstride, height + 1, mx, my); \
+    ff_put_vp8_bilinear ## SIZE ## _v_ ## OPT( \
+        dst, dststride, tmp, SIZE,      height,     mx, my); \
+}
+
+HVBILIN(mmxext,  8,  4,  8)
+#if ARCH_X86_32
+HVBILIN(mmxext,  8,  8, 16)
+HVBILIN(mmxext,  8, 16, 16)
+#endif
+HVBILIN(sse2,  8,  8, 16)
+HVBILIN(sse2,  8, 16, 16)
+HVBILIN(ssse3, 8,  4,  8)
+HVBILIN(ssse3, 8,  8, 16)
+HVBILIN(ssse3, 8, 16, 16)
+
+void ff_vp8_idct_dc_add_mmx(uint8_t *dst, int16_t block[16],
+                            ptrdiff_t stride);
+void ff_vp8_idct_dc_add_sse2(uint8_t *dst, int16_t block[16],
+                             ptrdiff_t stride);
+void ff_vp8_idct_dc_add_sse4(uint8_t *dst, int16_t block[16],
+                             ptrdiff_t stride);
+void ff_vp8_idct_dc_add4y_mmx(uint8_t *dst, int16_t block[4][16],
+                               ptrdiff_t stride);
+void ff_vp8_idct_dc_add4y_sse2(uint8_t *dst, int16_t block[4][16],
+                               ptrdiff_t stride);
+void ff_vp8_idct_dc_add4uv_mmx(uint8_t *dst, int16_t block[2][16],
+                               ptrdiff_t stride);
+void ff_vp8_luma_dc_wht_mmx(int16_t block[4][4][16], int16_t dc[16]);
+void ff_vp8_luma_dc_wht_sse(int16_t block[4][4][16], int16_t dc[16]);
+void ff_vp8_idct_add_mmx(uint8_t *dst, int16_t block[16], ptrdiff_t stride);
+void ff_vp8_idct_add_sse(uint8_t *dst, int16_t block[16], ptrdiff_t stride);
+
+#define DECLARE_LOOP_FILTER(NAME)                                       \
+void ff_vp8_v_loop_filter_simple_ ## NAME(uint8_t *dst,                 \
+                                          ptrdiff_t stride,             \
+                                          int flim);                    \
+void ff_vp8_h_loop_filter_simple_ ## NAME(uint8_t *dst,                 \
+                                          ptrdiff_t stride,             \
+                                          int flim);                    \
+void ff_vp8_v_loop_filter16y_inner_ ## NAME (uint8_t *dst,              \
+                                             ptrdiff_t stride,          \
+                                             int e, int i, int hvt);    \
+void ff_vp8_h_loop_filter16y_inner_ ## NAME (uint8_t *dst,              \
+                                             ptrdiff_t stride,          \
+                                             int e, int i, int hvt);    \
+void ff_vp8_v_loop_filter8uv_inner_ ## NAME (uint8_t *dstU,             \
+                                             uint8_t *dstV,             \
+                                             ptrdiff_t s,               \
+                                             int e, int i, int hvt);    \
+void ff_vp8_h_loop_filter8uv_inner_ ## NAME (uint8_t *dstU,             \
+                                             uint8_t *dstV,             \
+                                             ptrdiff_t s,               \
+                                             int e, int i, int hvt);    \
+void ff_vp8_v_loop_filter16y_mbedge_ ## NAME(uint8_t *dst,              \
+                                             ptrdiff_t stride,          \
+                                             int e, int i, int hvt);    \
+void ff_vp8_h_loop_filter16y_mbedge_ ## NAME(uint8_t *dst,              \
+                                             ptrdiff_t stride,          \
+                                             int e, int i, int hvt);    \
+void ff_vp8_v_loop_filter8uv_mbedge_ ## NAME(uint8_t *dstU,             \
+                                             uint8_t *dstV,             \
+                                             ptrdiff_t s,               \
+                                             int e, int i, int hvt);    \
+void ff_vp8_h_loop_filter8uv_mbedge_ ## NAME(uint8_t *dstU,             \
+                                             uint8_t *dstV,             \
+                                             ptrdiff_t s,               \
+                                             int e, int i, int hvt);
+
+DECLARE_LOOP_FILTER(mmx)
+DECLARE_LOOP_FILTER(mmxext)
+DECLARE_LOOP_FILTER(sse2)
+DECLARE_LOOP_FILTER(ssse3)
+DECLARE_LOOP_FILTER(sse4)
+
+#endif /* HAVE_X86ASM */
+
+#define VP8_LUMA_MC_FUNC(IDX, SIZE, OPT) \
+    c->put_vp8_epel_pixels_tab[IDX][0][2] = ff_put_vp8_epel ## SIZE ## _h6_ ## OPT; \
+    c->put_vp8_epel_pixels_tab[IDX][2][0] = ff_put_vp8_epel ## SIZE ## _v6_ ## OPT; \
+    c->put_vp8_epel_pixels_tab[IDX][2][2] = ff_put_vp8_epel ## SIZE ## _h6v6_ ## OPT
+
+#define VP8_MC_FUNC(IDX, SIZE, OPT) \
+    c->put_vp8_epel_pixels_tab[IDX][0][1] = ff_put_vp8_epel ## SIZE ## _h4_ ## OPT; \
+    c->put_vp8_epel_pixels_tab[IDX][1][0] = ff_put_vp8_epel ## SIZE ## _v4_ ## OPT; \
+    c->put_vp8_epel_pixels_tab[IDX][1][1] = ff_put_vp8_epel ## SIZE ## _h4v4_ ## OPT; \
+    c->put_vp8_epel_pixels_tab[IDX][1][2] = ff_put_vp8_epel ## SIZE ## _h6v4_ ## OPT; \
+    c->put_vp8_epel_pixels_tab[IDX][2][1] = ff_put_vp8_epel ## SIZE ## _h4v6_ ## OPT; \
+    VP8_LUMA_MC_FUNC(IDX, SIZE, OPT)
+
+#define VP8_BILINEAR_MC_FUNC(IDX, SIZE, OPT) \
+    c->put_vp8_bilinear_pixels_tab[IDX][0][1] = ff_put_vp8_bilinear ## SIZE ## _h_ ## OPT; \
+    c->put_vp8_bilinear_pixels_tab[IDX][0][2] = ff_put_vp8_bilinear ## SIZE ## _h_ ## OPT; \
+    c->put_vp8_bilinear_pixels_tab[IDX][1][0] = ff_put_vp8_bilinear ## SIZE ## _v_ ## OPT; \
+    c->put_vp8_bilinear_pixels_tab[IDX][1][1] = ff_put_vp8_bilinear ## SIZE ## _hv_ ## OPT; \
+    c->put_vp8_bilinear_pixels_tab[IDX][1][2] = ff_put_vp8_bilinear ## SIZE ## _hv_ ## OPT; \
+    c->put_vp8_bilinear_pixels_tab[IDX][2][0] = ff_put_vp8_bilinear ## SIZE ## _v_ ## OPT; \
+    c->put_vp8_bilinear_pixels_tab[IDX][2][1] = ff_put_vp8_bilinear ## SIZE ## _hv_ ## OPT; \
+    c->put_vp8_bilinear_pixels_tab[IDX][2][2] = ff_put_vp8_bilinear ## SIZE ## _hv_ ## OPT
+
+
+av_cold void ff_vp78dsp_init_x86(VP8DSPContext *c)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+#if ARCH_X86_32
+        c->put_vp8_epel_pixels_tab[0][0][0]     =
+        c->put_vp8_bilinear_pixels_tab[0][0][0] = ff_put_vp8_pixels16_mmx;
+#endif
+        c->put_vp8_epel_pixels_tab[1][0][0]     =
+        c->put_vp8_bilinear_pixels_tab[1][0][0] = ff_put_vp8_pixels8_mmx;
+    }
+
+    /* note that 4-tap width=16 functions are missing because w=16
+     * is only used for luma, and luma is always a copy or sixtap. */
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        VP8_MC_FUNC(2, 4, mmxext);
+        VP8_BILINEAR_MC_FUNC(2, 4, mmxext);
+#if ARCH_X86_32
+        VP8_LUMA_MC_FUNC(0, 16, mmxext);
+        VP8_MC_FUNC(1, 8, mmxext);
+        VP8_BILINEAR_MC_FUNC(0, 16, mmxext);
+        VP8_BILINEAR_MC_FUNC(1,  8, mmxext);
+#endif
+    }
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        c->put_vp8_epel_pixels_tab[0][0][0]     =
+        c->put_vp8_bilinear_pixels_tab[0][0][0] = ff_put_vp8_pixels16_sse;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags) || EXTERNAL_SSE2_SLOW(cpu_flags)) {
+        VP8_LUMA_MC_FUNC(0, 16, sse2);
+        VP8_MC_FUNC(1, 8, sse2);
+        VP8_BILINEAR_MC_FUNC(0, 16, sse2);
+        VP8_BILINEAR_MC_FUNC(1, 8, sse2);
+    }
+
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        VP8_LUMA_MC_FUNC(0, 16, ssse3);
+        VP8_MC_FUNC(1, 8, ssse3);
+        VP8_MC_FUNC(2, 4, ssse3);
+        VP8_BILINEAR_MC_FUNC(0, 16, ssse3);
+        VP8_BILINEAR_MC_FUNC(1, 8, ssse3);
+        VP8_BILINEAR_MC_FUNC(2, 4, ssse3);
+    }
+#endif /* HAVE_X86ASM */
+}
+
+av_cold void ff_vp8dsp_init_x86(VP8DSPContext *c)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->vp8_idct_dc_add4uv = ff_vp8_idct_dc_add4uv_mmx;
+#if ARCH_X86_32
+        c->vp8_idct_dc_add    = ff_vp8_idct_dc_add_mmx;
+        c->vp8_idct_dc_add4y  = ff_vp8_idct_dc_add4y_mmx;
+        c->vp8_idct_add       = ff_vp8_idct_add_mmx;
+        c->vp8_luma_dc_wht    = ff_vp8_luma_dc_wht_mmx;
+
+        c->vp8_v_loop_filter_simple = ff_vp8_v_loop_filter_simple_mmx;
+        c->vp8_h_loop_filter_simple = ff_vp8_h_loop_filter_simple_mmx;
+
+        c->vp8_v_loop_filter16y_inner = ff_vp8_v_loop_filter16y_inner_mmx;
+        c->vp8_h_loop_filter16y_inner = ff_vp8_h_loop_filter16y_inner_mmx;
+        c->vp8_v_loop_filter8uv_inner = ff_vp8_v_loop_filter8uv_inner_mmx;
+        c->vp8_h_loop_filter8uv_inner = ff_vp8_h_loop_filter8uv_inner_mmx;
+
+        c->vp8_v_loop_filter16y       = ff_vp8_v_loop_filter16y_mbedge_mmx;
+        c->vp8_h_loop_filter16y       = ff_vp8_h_loop_filter16y_mbedge_mmx;
+        c->vp8_v_loop_filter8uv       = ff_vp8_v_loop_filter8uv_mbedge_mmx;
+        c->vp8_h_loop_filter8uv       = ff_vp8_h_loop_filter8uv_mbedge_mmx;
+#endif
+    }
+
+    /* note that 4-tap width=16 functions are missing because w=16
+     * is only used for luma, and luma is always a copy or sixtap. */
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+#if ARCH_X86_32
+        c->vp8_v_loop_filter_simple   = ff_vp8_v_loop_filter_simple_mmxext;
+        c->vp8_h_loop_filter_simple   = ff_vp8_h_loop_filter_simple_mmxext;
+
+        c->vp8_v_loop_filter16y_inner = ff_vp8_v_loop_filter16y_inner_mmxext;
+        c->vp8_h_loop_filter16y_inner = ff_vp8_h_loop_filter16y_inner_mmxext;
+        c->vp8_v_loop_filter8uv_inner = ff_vp8_v_loop_filter8uv_inner_mmxext;
+        c->vp8_h_loop_filter8uv_inner = ff_vp8_h_loop_filter8uv_inner_mmxext;
+
+        c->vp8_v_loop_filter16y       = ff_vp8_v_loop_filter16y_mbedge_mmxext;
+        c->vp8_h_loop_filter16y       = ff_vp8_h_loop_filter16y_mbedge_mmxext;
+        c->vp8_v_loop_filter8uv       = ff_vp8_v_loop_filter8uv_mbedge_mmxext;
+        c->vp8_h_loop_filter8uv       = ff_vp8_h_loop_filter8uv_mbedge_mmxext;
+#endif
+    }
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        c->vp8_idct_add                         = ff_vp8_idct_add_sse;
+        c->vp8_luma_dc_wht                      = ff_vp8_luma_dc_wht_sse;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags) || EXTERNAL_SSE2_SLOW(cpu_flags)) {
+        c->vp8_v_loop_filter_simple = ff_vp8_v_loop_filter_simple_sse2;
+
+        c->vp8_v_loop_filter16y_inner = ff_vp8_v_loop_filter16y_inner_sse2;
+        c->vp8_v_loop_filter8uv_inner = ff_vp8_v_loop_filter8uv_inner_sse2;
+
+        c->vp8_v_loop_filter16y       = ff_vp8_v_loop_filter16y_mbedge_sse2;
+        c->vp8_v_loop_filter8uv       = ff_vp8_v_loop_filter8uv_mbedge_sse2;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->vp8_idct_dc_add            = ff_vp8_idct_dc_add_sse2;
+        c->vp8_idct_dc_add4y          = ff_vp8_idct_dc_add4y_sse2;
+
+        c->vp8_h_loop_filter_simple   = ff_vp8_h_loop_filter_simple_sse2;
+
+        c->vp8_h_loop_filter16y_inner = ff_vp8_h_loop_filter16y_inner_sse2;
+        c->vp8_h_loop_filter8uv_inner = ff_vp8_h_loop_filter8uv_inner_sse2;
+
+        c->vp8_h_loop_filter16y       = ff_vp8_h_loop_filter16y_mbedge_sse2;
+        c->vp8_h_loop_filter8uv       = ff_vp8_h_loop_filter8uv_mbedge_sse2;
+    }
+
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        c->vp8_v_loop_filter_simple = ff_vp8_v_loop_filter_simple_ssse3;
+        c->vp8_h_loop_filter_simple = ff_vp8_h_loop_filter_simple_ssse3;
+
+        c->vp8_v_loop_filter16y_inner = ff_vp8_v_loop_filter16y_inner_ssse3;
+        c->vp8_h_loop_filter16y_inner = ff_vp8_h_loop_filter16y_inner_ssse3;
+        c->vp8_v_loop_filter8uv_inner = ff_vp8_v_loop_filter8uv_inner_ssse3;
+        c->vp8_h_loop_filter8uv_inner = ff_vp8_h_loop_filter8uv_inner_ssse3;
+
+        c->vp8_v_loop_filter16y       = ff_vp8_v_loop_filter16y_mbedge_ssse3;
+        c->vp8_h_loop_filter16y       = ff_vp8_h_loop_filter16y_mbedge_ssse3;
+        c->vp8_v_loop_filter8uv       = ff_vp8_v_loop_filter8uv_mbedge_ssse3;
+        c->vp8_h_loop_filter8uv       = ff_vp8_h_loop_filter8uv_mbedge_ssse3;
+    }
+
+    if (EXTERNAL_SSE4(cpu_flags)) {
+        c->vp8_idct_dc_add            = ff_vp8_idct_dc_add_sse4;
+
+        c->vp8_h_loop_filter_simple   = ff_vp8_h_loop_filter_simple_sse4;
+        c->vp8_h_loop_filter16y       = ff_vp8_h_loop_filter16y_mbedge_sse4;
+        c->vp8_h_loop_filter8uv       = ff_vp8_h_loop_filter8uv_mbedge_sse4;
+    }
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init.c
new file mode 100644
index 000000000..837cce850
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init.c
@@ -0,0 +1,416 @@
+/*
+ * VP9 SIMD optimizations
+ *
+ * Copyright (c) 2013 Ronald S. Bultje <rsbultje gmail com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/vp9dsp.h"
+#include "libavcodec/x86/vp9dsp_init.h"
+
+#if HAVE_X86ASM
+
+decl_fpel_func(put,  4,   , mmx);
+decl_fpel_func(put,  8,   , mmx);
+decl_fpel_func(put, 16,   , sse);
+decl_fpel_func(put, 32,   , sse);
+decl_fpel_func(put, 64,   , sse);
+decl_fpel_func(avg,  4, _8, mmxext);
+decl_fpel_func(avg,  8, _8, mmxext);
+decl_fpel_func(avg, 16, _8, sse2);
+decl_fpel_func(avg, 32, _8, sse2);
+decl_fpel_func(avg, 64, _8, sse2);
+decl_fpel_func(put, 32,   , avx);
+decl_fpel_func(put, 64,   , avx);
+decl_fpel_func(avg, 32, _8, avx2);
+decl_fpel_func(avg, 64, _8, avx2);
+
+decl_mc_funcs(4, mmxext, int16_t, 8, 8);
+decl_mc_funcs(8, sse2, int16_t,  8, 8);
+decl_mc_funcs(4, ssse3, int8_t, 32, 8);
+decl_mc_funcs(8, ssse3, int8_t, 32, 8);
+#if ARCH_X86_64
+decl_mc_funcs(16, ssse3, int8_t, 32, 8);
+decl_mc_funcs(32, avx2, int8_t, 32, 8);
+#endif
+
+mc_rep_funcs(16,  8,  8,  sse2, int16_t,  8, 8)
+#if ARCH_X86_32
+mc_rep_funcs(16,  8,  8, ssse3, int8_t,  32, 8)
+#endif
+mc_rep_funcs(32, 16, 16, sse2,  int16_t,  8, 8)
+mc_rep_funcs(32, 16, 16, ssse3, int8_t,  32, 8)
+mc_rep_funcs(64, 32, 32, sse2,  int16_t,  8, 8)
+mc_rep_funcs(64, 32, 32, ssse3, int8_t,  32, 8)
+#if ARCH_X86_64 && HAVE_AVX2_EXTERNAL
+mc_rep_funcs(64, 32, 32, avx2,  int8_t,  32, 8)
+#endif
+
+extern const int8_t ff_filters_ssse3[3][15][4][32];
+extern const int16_t ff_filters_sse2[3][15][8][8];
+
+filters_8tap_2d_fn2(put, 16, 8, 1, mmxext, sse2, sse2)
+filters_8tap_2d_fn2(avg, 16, 8, 1, mmxext, sse2, sse2)
+filters_8tap_2d_fn2(put, 16, 8, 1, ssse3, ssse3, ssse3)
+filters_8tap_2d_fn2(avg, 16, 8, 1, ssse3, ssse3, ssse3)
+#if ARCH_X86_64 && HAVE_AVX2_EXTERNAL
+filters_8tap_2d_fn(put, 64, 32, 8, 1, avx2, ssse3)
+filters_8tap_2d_fn(put, 32, 32, 8, 1, avx2, ssse3)
+filters_8tap_2d_fn(avg, 64, 32, 8, 1, avx2, ssse3)
+filters_8tap_2d_fn(avg, 32, 32, 8, 1, avx2, ssse3)
+#endif
+
+filters_8tap_1d_fn3(put, 8, mmxext, sse2, sse2)
+filters_8tap_1d_fn3(avg, 8, mmxext, sse2, sse2)
+filters_8tap_1d_fn3(put, 8, ssse3, ssse3, ssse3)
+filters_8tap_1d_fn3(avg, 8, ssse3, ssse3, ssse3)
+#if ARCH_X86_64 && HAVE_AVX2_EXTERNAL
+filters_8tap_1d_fn2(put, 64, 8, avx2, ssse3)
+filters_8tap_1d_fn2(put, 32, 8, avx2, ssse3)
+filters_8tap_1d_fn2(avg, 64, 8, avx2, ssse3)
+filters_8tap_1d_fn2(avg, 32, 8, avx2, ssse3)
+#endif
+
+#define itxfm_func(typea, typeb, size, opt) \
+void ff_vp9_##typea##_##typeb##_##size##x##size##_add_##opt(uint8_t *dst, ptrdiff_t stride, \
+                                                            int16_t *block, int eob)
+#define itxfm_funcs(size, opt) \
+itxfm_func(idct,  idct,  size, opt); \
+itxfm_func(iadst, idct,  size, opt); \
+itxfm_func(idct,  iadst, size, opt); \
+itxfm_func(iadst, iadst, size, opt)
+
+itxfm_func(idct,  idct,  4, mmxext);
+itxfm_func(idct,  iadst, 4, sse2);
+itxfm_func(iadst, idct,  4, sse2);
+itxfm_func(iadst, iadst, 4, sse2);
+itxfm_funcs(4, ssse3);
+itxfm_funcs(8, sse2);
+itxfm_funcs(8, ssse3);
+itxfm_funcs(8, avx);
+itxfm_funcs(16, sse2);
+itxfm_funcs(16, ssse3);
+itxfm_funcs(16, avx);
+itxfm_func(idct, idct, 32, sse2);
+itxfm_func(idct, idct, 32, ssse3);
+itxfm_func(idct, idct, 32, avx);
+itxfm_func(iwht, iwht, 4, mmx);
+itxfm_funcs(16, avx2);
+itxfm_func(idct, idct, 32, avx2);
+
+#undef itxfm_func
+#undef itxfm_funcs
+
+#define lpf_funcs(size1, size2, opt) \
+void ff_vp9_loop_filter_v_##size1##_##size2##_##opt(uint8_t *dst, ptrdiff_t stride, \
+                                                    int E, int I, int H); \
+void ff_vp9_loop_filter_h_##size1##_##size2##_##opt(uint8_t *dst, ptrdiff_t stride, \
+                                                    int E, int I, int H)
+
+lpf_funcs(4, 8, mmxext);
+lpf_funcs(8, 8, mmxext);
+lpf_funcs(16, 16, sse2);
+lpf_funcs(16, 16, ssse3);
+lpf_funcs(16, 16, avx);
+lpf_funcs(44, 16, sse2);
+lpf_funcs(44, 16, ssse3);
+lpf_funcs(44, 16, avx);
+lpf_funcs(84, 16, sse2);
+lpf_funcs(84, 16, ssse3);
+lpf_funcs(84, 16, avx);
+lpf_funcs(48, 16, sse2);
+lpf_funcs(48, 16, ssse3);
+lpf_funcs(48, 16, avx);
+lpf_funcs(88, 16, sse2);
+lpf_funcs(88, 16, ssse3);
+lpf_funcs(88, 16, avx);
+
+#undef lpf_funcs
+
+#define ipred_func(size, type, opt) \
+void ff_vp9_ipred_##type##_##size##x##size##_##opt(uint8_t *dst, ptrdiff_t stride, \
+                                                   const uint8_t *l, const uint8_t *a)
+
+ipred_func(8, v, mmx);
+
+#define ipred_dc_funcs(size, opt) \
+ipred_func(size, dc, opt); \
+ipred_func(size, dc_left, opt); \
+ipred_func(size, dc_top, opt)
+
+ipred_dc_funcs(4, mmxext);
+ipred_dc_funcs(8, mmxext);
+
+#define ipred_dir_tm_funcs(size, opt) \
+ipred_func(size, tm, opt); \
+ipred_func(size, dl, opt); \
+ipred_func(size, dr, opt); \
+ipred_func(size, hd, opt); \
+ipred_func(size, hu, opt); \
+ipred_func(size, vl, opt); \
+ipred_func(size, vr, opt)
+
+ipred_dir_tm_funcs(4, mmxext);
+
+ipred_func(16, v, sse);
+ipred_func(32, v, sse);
+
+ipred_dc_funcs(16, sse2);
+ipred_dc_funcs(32, sse2);
+
+#define ipred_dir_tm_h_funcs(size, opt) \
+ipred_dir_tm_funcs(size, opt); \
+ipred_func(size, h, opt)
+
+ipred_dir_tm_h_funcs(8, sse2);
+ipred_dir_tm_h_funcs(16, sse2);
+ipred_dir_tm_h_funcs(32, sse2);
+
+ipred_func(4, h, sse2);
+
+#define ipred_all_funcs(size, opt) \
+ipred_dc_funcs(size, opt); \
+ipred_dir_tm_h_funcs(size, opt)
+
+// FIXME hd/vl_4x4_ssse3 does not exist
+ipred_all_funcs(4, ssse3);
+ipred_all_funcs(8, ssse3);
+ipred_all_funcs(16, ssse3);
+ipred_all_funcs(32, ssse3);
+
+ipred_dir_tm_h_funcs(8, avx);
+ipred_dir_tm_h_funcs(16, avx);
+ipred_dir_tm_h_funcs(32, avx);
+
+ipred_func(32, v, avx);
+
+ipred_dc_funcs(32, avx2);
+ipred_func(32, h, avx2);
+ipred_func(32, tm, avx2);
+
+#undef ipred_func
+#undef ipred_dir_tm_h_funcs
+#undef ipred_dir_tm_funcs
+#undef ipred_dc_funcs
+
+#endif /* HAVE_X86ASM */
+
+av_cold void ff_vp9dsp_init_x86(VP9DSPContext *dsp, int bpp, int bitexact)
+{
+#if HAVE_X86ASM
+    int cpu_flags;
+
+    if (bpp == 10) {
+        ff_vp9dsp_init_10bpp_x86(dsp, bitexact);
+        return;
+    } else if (bpp == 12) {
+        ff_vp9dsp_init_12bpp_x86(dsp, bitexact);
+        return;
+    }
+
+    cpu_flags = av_get_cpu_flags();
+
+#define init_lpf(opt) do { \
+    dsp->loop_filter_16[0] = ff_vp9_loop_filter_h_16_16_##opt; \
+    dsp->loop_filter_16[1] = ff_vp9_loop_filter_v_16_16_##opt; \
+    dsp->loop_filter_mix2[0][0][0] = ff_vp9_loop_filter_h_44_16_##opt; \
+    dsp->loop_filter_mix2[0][0][1] = ff_vp9_loop_filter_v_44_16_##opt; \
+    dsp->loop_filter_mix2[0][1][0] = ff_vp9_loop_filter_h_48_16_##opt; \
+    dsp->loop_filter_mix2[0][1][1] = ff_vp9_loop_filter_v_48_16_##opt; \
+    dsp->loop_filter_mix2[1][0][0] = ff_vp9_loop_filter_h_84_16_##opt; \
+    dsp->loop_filter_mix2[1][0][1] = ff_vp9_loop_filter_v_84_16_##opt; \
+    dsp->loop_filter_mix2[1][1][0] = ff_vp9_loop_filter_h_88_16_##opt; \
+    dsp->loop_filter_mix2[1][1][1] = ff_vp9_loop_filter_v_88_16_##opt; \
+} while (0)
+
+#define init_ipred(sz, opt, t, e) \
+    dsp->intra_pred[TX_##sz##X##sz][e##_PRED] = ff_vp9_ipred_##t##_##sz##x##sz##_##opt
+
+#define ff_vp9_ipred_hd_4x4_ssse3 ff_vp9_ipred_hd_4x4_mmxext
+#define ff_vp9_ipred_vl_4x4_ssse3 ff_vp9_ipred_vl_4x4_mmxext
+#define init_dir_tm_ipred(sz, opt) do { \
+    init_ipred(sz, opt, dl, DIAG_DOWN_LEFT); \
+    init_ipred(sz, opt, dr, DIAG_DOWN_RIGHT); \
+    init_ipred(sz, opt, hd, HOR_DOWN); \
+    init_ipred(sz, opt, vl, VERT_LEFT); \
+    init_ipred(sz, opt, hu, HOR_UP); \
+    init_ipred(sz, opt, tm, TM_VP8); \
+    init_ipred(sz, opt, vr, VERT_RIGHT); \
+} while (0)
+#define init_dir_tm_h_ipred(sz, opt) do { \
+    init_dir_tm_ipred(sz, opt); \
+    init_ipred(sz, opt, h,  HOR); \
+} while (0)
+#define init_dc_ipred(sz, opt) do { \
+    init_ipred(sz, opt, dc,      DC); \
+    init_ipred(sz, opt, dc_left, LEFT_DC); \
+    init_ipred(sz, opt, dc_top,  TOP_DC); \
+} while (0)
+#define init_all_ipred(sz, opt) do { \
+    init_dc_ipred(sz, opt); \
+    init_dir_tm_h_ipred(sz, opt); \
+} while (0)
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        init_fpel_func(4, 0,  4, put, , mmx);
+        init_fpel_func(3, 0,  8, put, , mmx);
+        if (!bitexact) {
+            dsp->itxfm_add[4 /* lossless */][DCT_DCT] =
+            dsp->itxfm_add[4 /* lossless */][ADST_DCT] =
+            dsp->itxfm_add[4 /* lossless */][DCT_ADST] =
+            dsp->itxfm_add[4 /* lossless */][ADST_ADST] = ff_vp9_iwht_iwht_4x4_add_mmx;
+        }
+        init_ipred(8, mmx, v, VERT);
+    }
+
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        dsp->loop_filter_8[0][0] = ff_vp9_loop_filter_h_4_8_mmxext;
+        dsp->loop_filter_8[0][1] = ff_vp9_loop_filter_v_4_8_mmxext;
+        dsp->loop_filter_8[1][0] = ff_vp9_loop_filter_h_8_8_mmxext;
+        dsp->loop_filter_8[1][1] = ff_vp9_loop_filter_v_8_8_mmxext;
+        init_subpel2(4, 0, 4, put, 8, mmxext);
+        init_subpel2(4, 1, 4, avg, 8, mmxext);
+        init_fpel_func(4, 1,  4, avg, _8, mmxext);
+        init_fpel_func(3, 1,  8, avg, _8, mmxext);
+        dsp->itxfm_add[TX_4X4][DCT_DCT] = ff_vp9_idct_idct_4x4_add_mmxext;
+        init_dc_ipred(4, mmxext);
+        init_dc_ipred(8, mmxext);
+        init_dir_tm_ipred(4, mmxext);
+    }
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        init_fpel_func(2, 0, 16, put, , sse);
+        init_fpel_func(1, 0, 32, put, , sse);
+        init_fpel_func(0, 0, 64, put, , sse);
+        init_ipred(16, sse, v, VERT);
+        init_ipred(32, sse, v, VERT);
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        init_subpel3_8to64(0, put, 8, sse2);
+        init_subpel3_8to64(1, avg, 8, sse2);
+        init_fpel_func(2, 1, 16, avg,  _8, sse2);
+        init_fpel_func(1, 1, 32, avg,  _8, sse2);
+        init_fpel_func(0, 1, 64, avg,  _8, sse2);
+        init_lpf(sse2);
+        dsp->itxfm_add[TX_4X4][ADST_DCT]  = ff_vp9_idct_iadst_4x4_add_sse2;
+        dsp->itxfm_add[TX_4X4][DCT_ADST]  = ff_vp9_iadst_idct_4x4_add_sse2;
+        dsp->itxfm_add[TX_4X4][ADST_ADST] = ff_vp9_iadst_iadst_4x4_add_sse2;
+        dsp->itxfm_add[TX_8X8][DCT_DCT] = ff_vp9_idct_idct_8x8_add_sse2;
+        dsp->itxfm_add[TX_8X8][ADST_DCT]  = ff_vp9_idct_iadst_8x8_add_sse2;
+        dsp->itxfm_add[TX_8X8][DCT_ADST]  = ff_vp9_iadst_idct_8x8_add_sse2;
+        dsp->itxfm_add[TX_8X8][ADST_ADST] = ff_vp9_iadst_iadst_8x8_add_sse2;
+        dsp->itxfm_add[TX_16X16][DCT_DCT]   = ff_vp9_idct_idct_16x16_add_sse2;
+        dsp->itxfm_add[TX_16X16][ADST_DCT]  = ff_vp9_idct_iadst_16x16_add_sse2;
+        dsp->itxfm_add[TX_16X16][DCT_ADST]  = ff_vp9_iadst_idct_16x16_add_sse2;
+        dsp->itxfm_add[TX_16X16][ADST_ADST] = ff_vp9_iadst_iadst_16x16_add_sse2;
+        dsp->itxfm_add[TX_32X32][ADST_ADST] =
+        dsp->itxfm_add[TX_32X32][ADST_DCT] =
+        dsp->itxfm_add[TX_32X32][DCT_ADST] =
+        dsp->itxfm_add[TX_32X32][DCT_DCT] = ff_vp9_idct_idct_32x32_add_sse2;
+        init_dc_ipred(16, sse2);
+        init_dc_ipred(32, sse2);
+        init_dir_tm_h_ipred(8, sse2);
+        init_dir_tm_h_ipred(16, sse2);
+        init_dir_tm_h_ipred(32, sse2);
+        init_ipred(4, sse2, h, HOR);
+    }
+
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        init_subpel3(0, put, 8, ssse3);
+        init_subpel3(1, avg, 8, ssse3);
+        dsp->itxfm_add[TX_4X4][DCT_DCT] = ff_vp9_idct_idct_4x4_add_ssse3;
+        dsp->itxfm_add[TX_4X4][ADST_DCT]  = ff_vp9_idct_iadst_4x4_add_ssse3;
+        dsp->itxfm_add[TX_4X4][DCT_ADST]  = ff_vp9_iadst_idct_4x4_add_ssse3;
+        dsp->itxfm_add[TX_4X4][ADST_ADST] = ff_vp9_iadst_iadst_4x4_add_ssse3;
+        dsp->itxfm_add[TX_8X8][DCT_DCT] = ff_vp9_idct_idct_8x8_add_ssse3;
+        dsp->itxfm_add[TX_8X8][ADST_DCT]  = ff_vp9_idct_iadst_8x8_add_ssse3;
+        dsp->itxfm_add[TX_8X8][DCT_ADST]  = ff_vp9_iadst_idct_8x8_add_ssse3;
+        dsp->itxfm_add[TX_8X8][ADST_ADST] = ff_vp9_iadst_iadst_8x8_add_ssse3;
+        dsp->itxfm_add[TX_16X16][DCT_DCT]   = ff_vp9_idct_idct_16x16_add_ssse3;
+        dsp->itxfm_add[TX_16X16][ADST_DCT]  = ff_vp9_idct_iadst_16x16_add_ssse3;
+        dsp->itxfm_add[TX_16X16][DCT_ADST]  = ff_vp9_iadst_idct_16x16_add_ssse3;
+        dsp->itxfm_add[TX_16X16][ADST_ADST] = ff_vp9_iadst_iadst_16x16_add_ssse3;
+        dsp->itxfm_add[TX_32X32][ADST_ADST] =
+        dsp->itxfm_add[TX_32X32][ADST_DCT] =
+        dsp->itxfm_add[TX_32X32][DCT_ADST] =
+        dsp->itxfm_add[TX_32X32][DCT_DCT] = ff_vp9_idct_idct_32x32_add_ssse3;
+        init_lpf(ssse3);
+        init_all_ipred(4, ssse3);
+        init_all_ipred(8, ssse3);
+        init_all_ipred(16, ssse3);
+        init_all_ipred(32, ssse3);
+    }
+
+    if (EXTERNAL_AVX(cpu_flags)) {
+        dsp->itxfm_add[TX_8X8][DCT_DCT] = ff_vp9_idct_idct_8x8_add_avx;
+        dsp->itxfm_add[TX_8X8][ADST_DCT]  = ff_vp9_idct_iadst_8x8_add_avx;
+        dsp->itxfm_add[TX_8X8][DCT_ADST]  = ff_vp9_iadst_idct_8x8_add_avx;
+        dsp->itxfm_add[TX_8X8][ADST_ADST] = ff_vp9_iadst_iadst_8x8_add_avx;
+        dsp->itxfm_add[TX_16X16][DCT_DCT] = ff_vp9_idct_idct_16x16_add_avx;
+        dsp->itxfm_add[TX_16X16][ADST_DCT]  = ff_vp9_idct_iadst_16x16_add_avx;
+        dsp->itxfm_add[TX_16X16][DCT_ADST]  = ff_vp9_iadst_idct_16x16_add_avx;
+        dsp->itxfm_add[TX_16X16][ADST_ADST] = ff_vp9_iadst_iadst_16x16_add_avx;
+        dsp->itxfm_add[TX_32X32][ADST_ADST] =
+        dsp->itxfm_add[TX_32X32][ADST_DCT] =
+        dsp->itxfm_add[TX_32X32][DCT_ADST] =
+        dsp->itxfm_add[TX_32X32][DCT_DCT] = ff_vp9_idct_idct_32x32_add_avx;
+        init_lpf(avx);
+        init_dir_tm_h_ipred(8, avx);
+        init_dir_tm_h_ipred(16, avx);
+        init_dir_tm_h_ipred(32, avx);
+    }
+    if (EXTERNAL_AVX_FAST(cpu_flags)) {
+        init_fpel_func(1, 0, 32, put, , avx);
+        init_fpel_func(0, 0, 64, put, , avx);
+        init_ipred(32, avx, v, VERT);
+    }
+
+    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+        init_fpel_func(1, 1, 32, avg, _8, avx2);
+        init_fpel_func(0, 1, 64, avg, _8, avx2);
+        if (ARCH_X86_64) {
+#if ARCH_X86_64 && HAVE_AVX2_EXTERNAL
+            dsp->itxfm_add[TX_16X16][DCT_DCT] = ff_vp9_idct_idct_16x16_add_avx2;
+            dsp->itxfm_add[TX_16X16][ADST_DCT]  = ff_vp9_idct_iadst_16x16_add_avx2;
+            dsp->itxfm_add[TX_16X16][DCT_ADST]  = ff_vp9_iadst_idct_16x16_add_avx2;
+            dsp->itxfm_add[TX_16X16][ADST_ADST] = ff_vp9_iadst_iadst_16x16_add_avx2;
+            dsp->itxfm_add[TX_32X32][ADST_ADST] =
+            dsp->itxfm_add[TX_32X32][ADST_DCT] =
+            dsp->itxfm_add[TX_32X32][DCT_ADST] =
+            dsp->itxfm_add[TX_32X32][DCT_DCT] = ff_vp9_idct_idct_32x32_add_avx2;
+            init_subpel3_32_64(0, put, 8, avx2);
+            init_subpel3_32_64(1, avg, 8, avx2);
+#endif
+        }
+        init_dc_ipred(32, avx2);
+        init_ipred(32, avx2, h,  HOR);
+        init_ipred(32, avx2, tm, TM_VP8);
+    }
+
+#undef init_fpel
+#undef init_subpel1
+#undef init_subpel2
+#undef init_subpel3
+
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init.h
new file mode 100644
index 000000000..e410cab3a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init.h
@@ -0,0 +1,189 @@
+/*
+ * VP9 SIMD optimizations
+ *
+ * Copyright (c) 2013 Ronald S. Bultje <rsbultje gmail com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_X86_VP9DSP_INIT_H
+#define AVCODEC_X86_VP9DSP_INIT_H
+
+#include "libavcodec/vp9dsp.h"
+
+// hack to force-expand BPC
+#define cat(a, bpp, b) a##bpp##b
+
+#define decl_fpel_func(avg, sz, bpp, opt) \
+void ff_vp9_##avg##sz##bpp##_##opt(uint8_t *dst, ptrdiff_t dst_stride, \
+                                   const uint8_t *src, ptrdiff_t src_stride, \
+                                   int h, int mx, int my)
+
+#define decl_mc_func(avg, sz, dir, opt, type, f_sz, bpp) \
+void ff_vp9_##avg##_8tap_1d_##dir##_##sz##_##bpp##_##opt(uint8_t *dst, ptrdiff_t dst_stride, \
+                                                         const uint8_t *src, ptrdiff_t src_stride, \
+                                                         int h, const type (*filter)[f_sz])
+
+#define decl_mc_funcs(sz, opt, type, fsz, bpp) \
+decl_mc_func(put, sz, h, opt, type, fsz, bpp); \
+decl_mc_func(avg, sz, h, opt, type, fsz, bpp); \
+decl_mc_func(put, sz, v, opt, type, fsz, bpp); \
+decl_mc_func(avg, sz, v, opt, type, fsz, bpp)
+
+#define decl_ipred_fn(type, sz, bpp, opt) \
+void ff_vp9_ipred_##type##_##sz##x##sz##_##bpp##_##opt(uint8_t *dst, \
+                                                       ptrdiff_t stride, \
+                                                       const uint8_t *l, \
+                                                       const uint8_t *a)
+
+#define decl_ipred_fns(type, bpp, opt4, opt8_16_32) \
+decl_ipred_fn(type,  4, bpp, opt4); \
+decl_ipred_fn(type,  8, bpp, opt8_16_32); \
+decl_ipred_fn(type, 16, bpp, opt8_16_32); \
+decl_ipred_fn(type, 32, bpp, opt8_16_32)
+
+#define decl_itxfm_func(typea, typeb, size, bpp, opt) \
+void cat(ff_vp9_##typea##_##typeb##_##size##x##size##_add_, bpp, _##opt)(uint8_t *dst, \
+                                                                         ptrdiff_t stride, \
+                                                                         int16_t *block, \
+                                                                         int eob)
+
+#define decl_itxfm_funcs(size, bpp, opt) \
+decl_itxfm_func(idct,  idct,  size, bpp, opt); \
+decl_itxfm_func(iadst, idct,  size, bpp, opt); \
+decl_itxfm_func(idct,  iadst, size, bpp, opt); \
+decl_itxfm_func(iadst, iadst, size, bpp, opt)
+
+#define mc_rep_func(avg, sz, hsz, hszb, dir, opt, type, f_sz, bpp) \
+static av_always_inline void \
+ff_vp9_##avg##_8tap_1d_##dir##_##sz##_##bpp##_##opt(uint8_t *dst, ptrdiff_t dst_stride, \
+                                                    const uint8_t *src, ptrdiff_t src_stride, \
+                                                    int h, const type (*filter)[f_sz]) \
+{ \
+    ff_vp9_##avg##_8tap_1d_##dir##_##hsz##_##bpp##_##opt(dst,        dst_stride, src, \
+                                                         src_stride, h, filter); \
+    ff_vp9_##avg##_8tap_1d_##dir##_##hsz##_##bpp##_##opt(dst + hszb, dst_stride, src + hszb, \
+                                                         src_stride, h, filter); \
+}
+
+#define mc_rep_funcs(sz, hsz, hszb, opt, type, fsz, bpp) \
+mc_rep_func(put, sz, hsz, hszb, h, opt, type, fsz, bpp) \
+mc_rep_func(avg, sz, hsz, hszb, h, opt, type, fsz, bpp) \
+mc_rep_func(put, sz, hsz, hszb, v, opt, type, fsz, bpp) \
+mc_rep_func(avg, sz, hsz, hszb, v, opt, type, fsz, bpp)
+
+#define filter_8tap_1d_fn(op, sz, f, f_opt, fname, dir, dvar, bpp, opt) \
+static void op##_8tap_##fname##_##sz##dir##_##bpp##_##opt(uint8_t *dst, ptrdiff_t dst_stride, \
+                                                          const uint8_t *src, ptrdiff_t src_stride, \
+                                                          int h, int mx, int my) \
+{ \
+    ff_vp9_##op##_8tap_1d_##dir##_##sz##_##bpp##_##opt(dst, dst_stride, src, src_stride, \
+                                                       h, ff_filters_##f_opt[f][dvar - 1]); \
+}
+
+#define filters_8tap_1d_fn(op, sz, dir, dvar, bpp, opt, f_opt) \
+filter_8tap_1d_fn(op, sz, FILTER_8TAP_REGULAR, f_opt, regular, dir, dvar, bpp, opt) \
+filter_8tap_1d_fn(op, sz, FILTER_8TAP_SHARP,   f_opt, sharp,   dir, dvar, bpp, opt) \
+filter_8tap_1d_fn(op, sz, FILTER_8TAP_SMOOTH,  f_opt, smooth,  dir, dvar, bpp, opt)
+
+#define filters_8tap_1d_fn2(op, sz, bpp, opt, f_opt) \
+filters_8tap_1d_fn(op, sz, h, mx, bpp, opt, f_opt) \
+filters_8tap_1d_fn(op, sz, v, my, bpp, opt, f_opt)
+
+#define filters_8tap_1d_fn3(op, bpp, opt4, opt8, f_opt) \
+filters_8tap_1d_fn2(op, 64, bpp, opt8, f_opt) \
+filters_8tap_1d_fn2(op, 32, bpp, opt8, f_opt) \
+filters_8tap_1d_fn2(op, 16, bpp, opt8, f_opt) \
+filters_8tap_1d_fn2(op, 8, bpp, opt8, f_opt) \
+filters_8tap_1d_fn2(op, 4, bpp, opt4, f_opt)
+
+#define filter_8tap_2d_fn(op, sz, f, f_opt, fname, align, bpp, bytes, opt) \
+static void op##_8tap_##fname##_##sz##hv_##bpp##_##opt(uint8_t *dst, ptrdiff_t dst_stride, \
+                                                       const uint8_t *src, ptrdiff_t src_stride, \
+                                                       int h, int mx, int my) \
+{ \
+    LOCAL_ALIGNED_##align(uint8_t, temp, [71 * 64 * bytes]); \
+    ff_vp9_put_8tap_1d_h_##sz##_##bpp##_##opt(temp, 64 * bytes, src - 3 * src_stride, \
+                                              src_stride,  h + 7, \
+                                              ff_filters_##f_opt[f][mx - 1]); \
+    ff_vp9_##op##_8tap_1d_v_##sz##_##bpp##_##opt(dst, dst_stride, temp + 3 * bytes * 64, \
+                                                 64 * bytes, h, \
+                                                 ff_filters_##f_opt[f][my - 1]); \
+}
+
+#define filters_8tap_2d_fn(op, sz, align, bpp, bytes, opt, f_opt) \
+filter_8tap_2d_fn(op, sz, FILTER_8TAP_REGULAR, f_opt, regular, align, bpp, bytes, opt) \
+filter_8tap_2d_fn(op, sz, FILTER_8TAP_SHARP,   f_opt, sharp, align, bpp, bytes, opt) \
+filter_8tap_2d_fn(op, sz, FILTER_8TAP_SMOOTH,  f_opt, smooth, align, bpp, bytes, opt)
+
+#define filters_8tap_2d_fn2(op, align, bpp, bytes, opt4, opt8, f_opt) \
+filters_8tap_2d_fn(op, 64, align, bpp, bytes, opt8, f_opt) \
+filters_8tap_2d_fn(op, 32, align, bpp, bytes, opt8, f_opt) \
+filters_8tap_2d_fn(op, 16, align, bpp, bytes, opt8, f_opt) \
+filters_8tap_2d_fn(op, 8, align, bpp, bytes, opt8, f_opt) \
+filters_8tap_2d_fn(op, 4, align, bpp, bytes, opt4, f_opt)
+
+#define init_fpel_func(idx1, idx2, sz, type, bpp, opt) \
+    dsp->mc[idx1][FILTER_8TAP_SMOOTH ][idx2][0][0] = \
+    dsp->mc[idx1][FILTER_8TAP_REGULAR][idx2][0][0] = \
+    dsp->mc[idx1][FILTER_8TAP_SHARP  ][idx2][0][0] = \
+    dsp->mc[idx1][FILTER_BILINEAR    ][idx2][0][0] = ff_vp9_##type##sz##bpp##_##opt
+
+#define init_subpel1(idx1, idx2, idxh, idxv, sz, dir, type, bpp, opt) \
+    dsp->mc[idx1][FILTER_8TAP_SMOOTH ][idx2][idxh][idxv] = \
+        type##_8tap_smooth_##sz##dir##_##bpp##_##opt; \
+    dsp->mc[idx1][FILTER_8TAP_REGULAR][idx2][idxh][idxv] = \
+        type##_8tap_regular_##sz##dir##_##bpp##_##opt; \
+    dsp->mc[idx1][FILTER_8TAP_SHARP  ][idx2][idxh][idxv] = \
+        type##_8tap_sharp_##sz##dir##_##bpp##_##opt
+
+#define init_subpel2(idx1, idx2, sz, type, bpp, opt) \
+    init_subpel1(idx1, idx2, 1, 1, sz, hv, type, bpp, opt); \
+    init_subpel1(idx1, idx2, 0, 1, sz, v,  type, bpp, opt); \
+    init_subpel1(idx1, idx2, 1, 0, sz, h,  type, bpp, opt)
+
+#define init_subpel3_32_64(idx, type, bpp, opt) \
+    init_subpel2(0, idx, 64, type, bpp, opt); \
+    init_subpel2(1, idx, 32, type, bpp, opt)
+
+#define init_subpel3_8to64(idx, type, bpp, opt) \
+    init_subpel3_32_64(idx, type, bpp, opt); \
+    init_subpel2(2, idx, 16, type, bpp, opt); \
+    init_subpel2(3, idx,  8, type, bpp, opt)
+
+#define init_subpel3(idx, type, bpp, opt) \
+    init_subpel3_8to64(idx, type, bpp, opt); \
+    init_subpel2(4, idx,  4, type, bpp, opt)
+
+#define init_ipred_func(type, enum, sz, bpp, opt) \
+    dsp->intra_pred[TX_##sz##X##sz][enum##_PRED] = \
+        cat(ff_vp9_ipred_##type##_##sz##x##sz##_, bpp, _##opt)
+
+#define init_8_16_32_ipred_funcs(type, enum, bpp, opt) \
+    init_ipred_func(type, enum,  8, bpp, opt); \
+    init_ipred_func(type, enum, 16, bpp, opt); \
+    init_ipred_func(type, enum, 32, bpp, opt)
+
+#define init_ipred_funcs(type, enum, bpp, opt) \
+    init_ipred_func(type, enum,  4, bpp, opt); \
+    init_8_16_32_ipred_funcs(type, enum, bpp, opt)
+
+void ff_vp9dsp_init_10bpp_x86(VP9DSPContext *dsp, int bitexact);
+void ff_vp9dsp_init_12bpp_x86(VP9DSPContext *dsp, int bitexact);
+void ff_vp9dsp_init_16bpp_x86(VP9DSPContext *dsp);
+
+#endif /* AVCODEC_X86_VP9DSP_INIT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init_10bpp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init_10bpp.c
new file mode 100644
index 000000000..2694c06cb
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init_10bpp.c
@@ -0,0 +1,25 @@
+/*
+ * VP9 SIMD optimizations
+ *
+ * Copyright (c) 2013 Ronald S. Bultje <rsbultje gmail com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define BPC 10
+#define INIT_FUNC ff_vp9dsp_init_10bpp_x86
+#include "vp9dsp_init_16bpp_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init_12bpp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init_12bpp.c
new file mode 100644
index 000000000..5da3bc184
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init_12bpp.c
@@ -0,0 +1,25 @@
+/*
+ * VP9 SIMD optimizations
+ *
+ * Copyright (c) 2013 Ronald S. Bultje <rsbultje gmail com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define BPC 12
+#define INIT_FUNC ff_vp9dsp_init_12bpp_x86
+#include "vp9dsp_init_16bpp_template.c"
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init_16bpp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init_16bpp.c
new file mode 100644
index 000000000..60d10a12a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init_16bpp.c
@@ -0,0 +1,149 @@
+/*
+ * VP9 SIMD optimizations
+ *
+ * Copyright (c) 2013 Ronald S. Bultje <rsbultje gmail com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/vp9dsp.h"
+#include "libavcodec/x86/vp9dsp_init.h"
+
+#if HAVE_X86ASM
+
+decl_fpel_func(put,   8,    , mmx);
+decl_fpel_func(avg,   8, _16, mmxext);
+decl_fpel_func(put,  16,    , sse);
+decl_fpel_func(put,  32,    , sse);
+decl_fpel_func(put,  64,    , sse);
+decl_fpel_func(put, 128,    , sse);
+decl_fpel_func(avg,  16, _16, sse2);
+decl_fpel_func(avg,  32, _16, sse2);
+decl_fpel_func(avg,  64, _16, sse2);
+decl_fpel_func(avg, 128, _16, sse2);
+decl_fpel_func(put,  32,    , avx);
+decl_fpel_func(put,  64,    , avx);
+decl_fpel_func(put, 128,    , avx);
+decl_fpel_func(avg,  32, _16, avx2);
+decl_fpel_func(avg,  64, _16, avx2);
+decl_fpel_func(avg, 128, _16, avx2);
+
+decl_ipred_fns(v,       16, mmx,    sse);
+decl_ipred_fns(h,       16, mmxext, sse2);
+decl_ipred_fns(dc,      16, mmxext, sse2);
+decl_ipred_fns(dc_top,  16, mmxext, sse2);
+decl_ipred_fns(dc_left, 16, mmxext, sse2);
+decl_ipred_fn(dl,       16,     16, avx2);
+decl_ipred_fn(dl,       32,     16, avx2);
+decl_ipred_fn(dr,       16,     16, avx2);
+decl_ipred_fn(dr,       32,     16, avx2);
+
+#define decl_ipred_dir_funcs(type) \
+decl_ipred_fns(type, 16, sse2,  sse2); \
+decl_ipred_fns(type, 16, ssse3, ssse3); \
+decl_ipred_fns(type, 16, avx,   avx)
+
+decl_ipred_dir_funcs(dl);
+decl_ipred_dir_funcs(dr);
+decl_ipred_dir_funcs(vl);
+decl_ipred_dir_funcs(vr);
+decl_ipred_dir_funcs(hu);
+decl_ipred_dir_funcs(hd);
+#endif /* HAVE_X86ASM */
+
+av_cold void ff_vp9dsp_init_16bpp_x86(VP9DSPContext *dsp)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        init_fpel_func(4, 0,   8, put, , mmx);
+        init_ipred_func(v, VERT, 4, 16, mmx);
+    }
+
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        init_fpel_func(4, 1,   8, avg, _16, mmxext);
+        init_ipred_func(h, HOR, 4, 16, mmxext);
+        init_ipred_func(dc, DC, 4, 16, mmxext);
+        init_ipred_func(dc_top,  TOP_DC,  4, 16, mmxext);
+        init_ipred_func(dc_left, LEFT_DC, 4, 16, mmxext);
+    }
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        init_fpel_func(3, 0,  16, put, , sse);
+        init_fpel_func(2, 0,  32, put, , sse);
+        init_fpel_func(1, 0,  64, put, , sse);
+        init_fpel_func(0, 0, 128, put, , sse);
+        init_8_16_32_ipred_funcs(v, VERT, 16, sse);
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        init_fpel_func(3, 1,  16, avg, _16, sse2);
+        init_fpel_func(2, 1,  32, avg, _16, sse2);
+        init_fpel_func(1, 1,  64, avg, _16, sse2);
+        init_fpel_func(0, 1, 128, avg, _16, sse2);
+        init_8_16_32_ipred_funcs(h, HOR, 16, sse2);
+        init_8_16_32_ipred_funcs(dc, DC, 16, sse2);
+        init_8_16_32_ipred_funcs(dc_top,  TOP_DC,  16, sse2);
+        init_8_16_32_ipred_funcs(dc_left, LEFT_DC, 16, sse2);
+        init_ipred_funcs(dl, DIAG_DOWN_LEFT, 16, sse2);
+        init_ipred_funcs(dr, DIAG_DOWN_RIGHT, 16, sse2);
+        init_ipred_funcs(vl, VERT_LEFT, 16, sse2);
+        init_ipred_funcs(vr, VERT_RIGHT, 16, sse2);
+        init_ipred_funcs(hu, HOR_UP, 16, sse2);
+        init_ipred_funcs(hd, HOR_DOWN, 16, sse2);
+    }
+
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        init_ipred_funcs(dl, DIAG_DOWN_LEFT, 16, ssse3);
+        init_ipred_funcs(dr, DIAG_DOWN_RIGHT, 16, ssse3);
+        init_ipred_funcs(vl, VERT_LEFT, 16, ssse3);
+        init_ipred_funcs(vr, VERT_RIGHT, 16, ssse3);
+        init_ipred_funcs(hu, HOR_UP, 16, ssse3);
+        init_ipred_funcs(hd, HOR_DOWN, 16, ssse3);
+    }
+
+    if (EXTERNAL_AVX_FAST(cpu_flags)) {
+        init_fpel_func(2, 0,  32, put, , avx);
+        init_fpel_func(1, 0,  64, put, , avx);
+        init_fpel_func(0, 0, 128, put, , avx);
+        init_ipred_funcs(dl, DIAG_DOWN_LEFT, 16, avx);
+        init_ipred_funcs(dr, DIAG_DOWN_RIGHT, 16, avx);
+        init_ipred_funcs(vl, VERT_LEFT, 16, avx);
+        init_ipred_funcs(vr, VERT_RIGHT, 16, avx);
+        init_ipred_funcs(hu, HOR_UP, 16, avx);
+        init_ipred_funcs(hd, HOR_DOWN, 16, avx);
+    }
+
+    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+        init_fpel_func(2, 1,  32, avg, _16, avx2);
+        init_fpel_func(1, 1,  64, avg, _16, avx2);
+        init_fpel_func(0, 1, 128, avg, _16, avx2);
+        init_ipred_func(dl, DIAG_DOWN_LEFT, 16, 16, avx2);
+        init_ipred_func(dl, DIAG_DOWN_LEFT, 32, 16, avx2);
+        init_ipred_func(dr, DIAG_DOWN_RIGHT, 16, 16, avx2);
+#if ARCH_X86_64
+        init_ipred_func(dr, DIAG_DOWN_RIGHT, 32, 16, avx2);
+#endif
+    }
+
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init_16bpp_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init_16bpp_template.c
new file mode 100644
index 000000000..b56afc7f5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/vp9dsp_init_16bpp_template.c
@@ -0,0 +1,240 @@
+/*
+ * VP9 SIMD optimizations
+ *
+ * Copyright (c) 2013 Ronald S. Bultje <rsbultje gmail com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/vp9dsp.h"
+#include "libavcodec/x86/vp9dsp_init.h"
+
+#if HAVE_X86ASM
+
+extern const int16_t ff_filters_16bpp[3][15][4][16];
+
+decl_mc_funcs(4, sse2, int16_t, 16, BPC);
+decl_mc_funcs(8, sse2, int16_t, 16, BPC);
+decl_mc_funcs(16, avx2, int16_t, 16, BPC);
+
+mc_rep_funcs(16,  8, 16, sse2, int16_t, 16, BPC)
+mc_rep_funcs(32, 16, 32, sse2, int16_t, 16, BPC)
+mc_rep_funcs(64, 32, 64, sse2, int16_t, 16, BPC)
+#if HAVE_AVX2_EXTERNAL
+mc_rep_funcs(32, 16, 32, avx2, int16_t, 16, BPC)
+mc_rep_funcs(64, 32, 64, avx2, int16_t, 16, BPC)
+#endif
+
+filters_8tap_2d_fn2(put, 16, BPC, 2, sse2, sse2, 16bpp)
+filters_8tap_2d_fn2(avg, 16, BPC, 2, sse2, sse2, 16bpp)
+#if HAVE_AVX2_EXTERNAL
+filters_8tap_2d_fn(put, 64, 32, BPC, 2, avx2, 16bpp)
+filters_8tap_2d_fn(avg, 64, 32, BPC, 2, avx2, 16bpp)
+filters_8tap_2d_fn(put, 32, 32, BPC, 2, avx2, 16bpp)
+filters_8tap_2d_fn(avg, 32, 32, BPC, 2, avx2, 16bpp)
+filters_8tap_2d_fn(put, 16, 32, BPC, 2, avx2, 16bpp)
+filters_8tap_2d_fn(avg, 16, 32, BPC, 2, avx2, 16bpp)
+#endif
+
+filters_8tap_1d_fn3(put, BPC, sse2, sse2, 16bpp)
+filters_8tap_1d_fn3(avg, BPC, sse2, sse2, 16bpp)
+#if HAVE_AVX2_EXTERNAL
+filters_8tap_1d_fn2(put, 64, BPC, avx2, 16bpp)
+filters_8tap_1d_fn2(avg, 64, BPC, avx2, 16bpp)
+filters_8tap_1d_fn2(put, 32, BPC, avx2, 16bpp)
+filters_8tap_1d_fn2(avg, 32, BPC, avx2, 16bpp)
+filters_8tap_1d_fn2(put, 16, BPC, avx2, 16bpp)
+filters_8tap_1d_fn2(avg, 16, BPC, avx2, 16bpp)
+#endif
+
+#define decl_lpf_func(dir, wd, bpp, opt) \
+void ff_vp9_loop_filter_##dir##_##wd##_##bpp##_##opt(uint8_t *dst, ptrdiff_t stride, \
+                                                     int E, int I, int H)
+
+#define decl_lpf_funcs(dir, wd, bpp) \
+decl_lpf_func(dir, wd, bpp, sse2); \
+decl_lpf_func(dir, wd, bpp, ssse3); \
+decl_lpf_func(dir, wd, bpp, avx)
+
+#define decl_lpf_funcs_wd(dir) \
+decl_lpf_funcs(dir,  4, BPC); \
+decl_lpf_funcs(dir,  8, BPC); \
+decl_lpf_funcs(dir, 16, BPC)
+
+decl_lpf_funcs_wd(h);
+decl_lpf_funcs_wd(v);
+
+#define lpf_16_wrapper(dir, off, bpp, opt) \
+static void loop_filter_##dir##_16_##bpp##_##opt(uint8_t *dst, ptrdiff_t stride, \
+                                                 int E, int I, int H) \
+{ \
+    ff_vp9_loop_filter_##dir##_16_##bpp##_##opt(dst,       stride, E, I, H); \
+    ff_vp9_loop_filter_##dir##_16_##bpp##_##opt(dst + off, stride, E, I, H); \
+}
+
+#define lpf_16_wrappers(bpp, opt) \
+lpf_16_wrapper(h, 8 * stride, bpp, opt) \
+lpf_16_wrapper(v, 16,         bpp, opt)
+
+lpf_16_wrappers(BPC, sse2)
+lpf_16_wrappers(BPC, ssse3)
+lpf_16_wrappers(BPC, avx)
+
+#define lpf_mix2_wrapper(dir, off, wd1, wd2, bpp, opt) \
+static void loop_filter_##dir##_##wd1##wd2##_##bpp##_##opt(uint8_t *dst, ptrdiff_t stride, \
+                                                           int E, int I, int H) \
+{ \
+    ff_vp9_loop_filter_##dir##_##wd1##_##bpp##_##opt(dst,       stride, \
+                                                     E & 0xff, I & 0xff, H & 0xff); \
+    ff_vp9_loop_filter_##dir##_##wd2##_##bpp##_##opt(dst + off, stride, \
+                                                     E >> 8,   I >> 8,   H >> 8); \
+}
+
+#define lpf_mix2_wrappers(wd1, wd2, bpp, opt) \
+lpf_mix2_wrapper(h, 8 * stride, wd1, wd2, bpp, opt) \
+lpf_mix2_wrapper(v, 16,         wd1, wd2, bpp, opt)
+
+#define lpf_mix2_wrappers_set(bpp, opt) \
+lpf_mix2_wrappers(4, 4, bpp, opt) \
+lpf_mix2_wrappers(4, 8, bpp, opt) \
+lpf_mix2_wrappers(8, 4, bpp, opt) \
+lpf_mix2_wrappers(8, 8, bpp, opt) \
+
+lpf_mix2_wrappers_set(BPC, sse2)
+lpf_mix2_wrappers_set(BPC, ssse3)
+lpf_mix2_wrappers_set(BPC, avx)
+
+decl_ipred_fns(tm, BPC, mmxext, sse2);
+
+decl_itxfm_func(iwht, iwht, 4, BPC, mmxext);
+#if BPC == 10
+decl_itxfm_func(idct,  idct,  4, BPC, mmxext);
+decl_itxfm_funcs(4, BPC, ssse3);
+#else
+decl_itxfm_func(idct,  idct,  4, BPC, sse2);
+#endif
+decl_itxfm_func(idct,  iadst, 4, BPC, sse2);
+decl_itxfm_func(iadst, idct,  4, BPC, sse2);
+decl_itxfm_func(iadst, iadst, 4, BPC, sse2);
+decl_itxfm_funcs(8, BPC, sse2);
+decl_itxfm_funcs(16, BPC, sse2);
+decl_itxfm_func(idct,  idct, 32, BPC, sse2);
+#endif /* HAVE_X86ASM */
+
+av_cold void INIT_FUNC(VP9DSPContext *dsp, int bitexact)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+#define init_lpf_8_func(idx1, idx2, dir, wd, bpp, opt) \
+    dsp->loop_filter_8[idx1][idx2] = ff_vp9_loop_filter_##dir##_##wd##_##bpp##_##opt
+#define init_lpf_16_func(idx, dir, bpp, opt) \
+    dsp->loop_filter_16[idx] = loop_filter_##dir##_16_##bpp##_##opt
+#define init_lpf_mix2_func(idx1, idx2, idx3, dir, wd1, wd2, bpp, opt) \
+    dsp->loop_filter_mix2[idx1][idx2][idx3] = loop_filter_##dir##_##wd1##wd2##_##bpp##_##opt
+
+#define init_lpf_funcs(bpp, opt) \
+    init_lpf_8_func(0, 0, h,  4, bpp, opt); \
+    init_lpf_8_func(0, 1, v,  4, bpp, opt); \
+    init_lpf_8_func(1, 0, h,  8, bpp, opt); \
+    init_lpf_8_func(1, 1, v,  8, bpp, opt); \
+    init_lpf_8_func(2, 0, h, 16, bpp, opt); \
+    init_lpf_8_func(2, 1, v, 16, bpp, opt); \
+    init_lpf_16_func(0, h, bpp, opt); \
+    init_lpf_16_func(1, v, bpp, opt); \
+    init_lpf_mix2_func(0, 0, 0, h, 4, 4, bpp, opt); \
+    init_lpf_mix2_func(0, 1, 0, h, 4, 8, bpp, opt); \
+    init_lpf_mix2_func(1, 0, 0, h, 8, 4, bpp, opt); \
+    init_lpf_mix2_func(1, 1, 0, h, 8, 8, bpp, opt); \
+    init_lpf_mix2_func(0, 0, 1, v, 4, 4, bpp, opt); \
+    init_lpf_mix2_func(0, 1, 1, v, 4, 8, bpp, opt); \
+    init_lpf_mix2_func(1, 0, 1, v, 8, 4, bpp, opt); \
+    init_lpf_mix2_func(1, 1, 1, v, 8, 8, bpp, opt)
+
+#define init_itx_func(idxa, idxb, typea, typeb, size, bpp, opt) \
+    dsp->itxfm_add[idxa][idxb] = \
+        cat(ff_vp9_##typea##_##typeb##_##size##x##size##_add_, bpp, _##opt);
+#define init_itx_func_one(idx, typea, typeb, size, bpp, opt) \
+    init_itx_func(idx, DCT_DCT,   typea, typeb, size, bpp, opt); \
+    init_itx_func(idx, ADST_DCT,  typea, typeb, size, bpp, opt); \
+    init_itx_func(idx, DCT_ADST,  typea, typeb, size, bpp, opt); \
+    init_itx_func(idx, ADST_ADST, typea, typeb, size, bpp, opt)
+#define init_itx_funcs(idx, size, bpp, opt) \
+    init_itx_func(idx, DCT_DCT,   idct,  idct,  size, bpp, opt); \
+    init_itx_func(idx, ADST_DCT,  idct,  iadst, size, bpp, opt); \
+    init_itx_func(idx, DCT_ADST,  iadst, idct,  size, bpp, opt); \
+    init_itx_func(idx, ADST_ADST, iadst, iadst, size, bpp, opt); \
+
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        init_ipred_func(tm, TM_VP8, 4, BPC, mmxext);
+        if (!bitexact) {
+            init_itx_func_one(4 /* lossless */, iwht, iwht, 4, BPC, mmxext);
+#if BPC == 10
+            init_itx_func(TX_4X4, DCT_DCT, idct, idct, 4, 10, mmxext);
+#endif
+        }
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        init_subpel3(0, put, BPC, sse2);
+        init_subpel3(1, avg, BPC, sse2);
+        init_lpf_funcs(BPC, sse2);
+        init_8_16_32_ipred_funcs(tm, TM_VP8, BPC, sse2);
+#if BPC == 10
+        if (!bitexact) {
+            init_itx_func(TX_4X4, ADST_DCT,  idct,  iadst, 4, 10, sse2);
+            init_itx_func(TX_4X4, DCT_ADST,  iadst, idct,  4, 10, sse2);
+            init_itx_func(TX_4X4, ADST_ADST, iadst, iadst, 4, 10, sse2);
+        }
+#else
+        init_itx_funcs(TX_4X4, 4, 12, sse2);
+#endif
+        init_itx_funcs(TX_8X8, 8, BPC, sse2);
+        init_itx_funcs(TX_16X16, 16, BPC, sse2);
+        init_itx_func_one(TX_32X32, idct, idct, 32, BPC, sse2);
+    }
+
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        init_lpf_funcs(BPC, ssse3);
+#if BPC == 10
+        if (!bitexact) {
+            init_itx_funcs(TX_4X4, 4, BPC, ssse3);
+        }
+#endif
+    }
+
+    if (EXTERNAL_AVX(cpu_flags)) {
+        init_lpf_funcs(BPC, avx);
+    }
+
+    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+#if HAVE_AVX2_EXTERNAL
+        init_subpel3_32_64(0,  put, BPC, avx2);
+        init_subpel3_32_64(1,  avg, BPC, avx2);
+        init_subpel2(2, 0, 16, put, BPC, avx2);
+        init_subpel2(2, 1, 16, avg, BPC, avx2);
+#endif
+    }
+
+#endif /* HAVE_X86ASM */
+
+    ff_vp9dsp_init_16bpp_x86(dsp);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/xvididct.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/xvididct.h
new file mode 100644
index 000000000..edb5ebfd3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/xvididct.h
@@ -0,0 +1,44 @@
+/*
+ * XVID MPEG-4 VIDEO CODEC
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * header for Xvid IDCT functions
+ */
+
+#ifndef AVCODEC_X86_XVIDIDCT_H
+#define AVCODEC_X86_XVIDIDCT_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+void ff_xvid_idct_mmx(short *block);
+void ff_xvid_idct_mmx_put(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_xvid_idct_mmx_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+
+void ff_xvid_idct_mmxext(short *block);
+void ff_xvid_idct_mmxext_put(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_xvid_idct_mmxext_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+
+void ff_xvid_idct_sse2(short *block);
+void ff_xvid_idct_put_sse2(uint8_t *dest, ptrdiff_t line_size, short *block);
+void ff_xvid_idct_add_sse2(uint8_t *dest, ptrdiff_t line_size, short *block);
+
+#endif /* AVCODEC_X86_XVIDIDCT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/xvididct_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/xvididct_init.c
new file mode 100644
index 000000000..a91b416b7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/x86/xvididct_init.c
@@ -0,0 +1,89 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/idctdsp.h"
+#include "libavcodec/xvididct.h"
+
+#include "idctdsp.h"
+#include "xvididct.h"
+
+#if ARCH_X86_32 && HAVE_X86ASM
+static void xvid_idct_mmx_put(uint8_t *dest, ptrdiff_t line_size, short *block)
+{
+    ff_xvid_idct_mmx(block);
+    ff_put_pixels_clamped_mmx(block, dest, line_size);
+}
+
+static void xvid_idct_mmx_add(uint8_t *dest, ptrdiff_t line_size, short *block)
+{
+    ff_xvid_idct_mmx(block);
+    ff_add_pixels_clamped_mmx(block, dest, line_size);
+}
+
+static void xvid_idct_mmxext_put(uint8_t *dest, ptrdiff_t line_size, short *block)
+{
+    ff_xvid_idct_mmxext(block);
+    ff_put_pixels_clamped_mmx(block, dest, line_size);
+}
+
+static void xvid_idct_mmxext_add(uint8_t *dest, ptrdiff_t line_size, short *block)
+{
+    ff_xvid_idct_mmxext(block);
+    ff_add_pixels_clamped_mmx(block, dest, line_size);
+}
+#endif
+
+av_cold void ff_xvid_idct_init_x86(IDCTDSPContext *c, AVCodecContext *avctx,
+                                   unsigned high_bit_depth)
+{
+#if HAVE_X86ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (high_bit_depth ||
+        !(avctx->idct_algo == FF_IDCT_AUTO ||
+          avctx->idct_algo == FF_IDCT_XVID))
+        return;
+
+#if ARCH_X86_32
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->idct_put  = xvid_idct_mmx_put;
+        c->idct_add  = xvid_idct_mmx_add;
+        c->idct      = ff_xvid_idct_mmx;
+        c->perm_type = FF_IDCT_PERM_NONE;
+    }
+
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        c->idct_put  = xvid_idct_mmxext_put;
+        c->idct_add  = xvid_idct_mmxext_add;
+        c->idct      = ff_xvid_idct_mmxext;
+        c->perm_type = FF_IDCT_PERM_NONE;
+    }
+#endif
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->idct_put  = ff_xvid_idct_put_sse2;
+        c->idct_add  = ff_xvid_idct_add_sse2;
+        c->idct      = ff_xvid_idct_sse2;
+        c->perm_type = FF_IDCT_PERM_SSE2;
+    }
+#endif /* HAVE_X86ASM */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/xiph.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/xiph.c
new file mode 100644
index 000000000..d072224b4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/xiph.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2007 The FFmpeg Project
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/intreadwrite.h"
+#include "xiph.h"
+
+int avpriv_split_xiph_headers(const uint8_t *extradata, int extradata_size,
+                          int first_header_size, const uint8_t *header_start[3],
+                          int header_len[3])
+{
+    int i;
+
+    if (extradata_size >= 6 && AV_RB16(extradata) == first_header_size) {
+        int overall_len = 6;
+        for (i=0; i<3; i++) {
+            header_len[i] = AV_RB16(extradata);
+            extradata += 2;
+            header_start[i] = extradata;
+            extradata += header_len[i];
+            if (overall_len > extradata_size - header_len[i])
+                return -1;
+            overall_len += header_len[i];
+        }
+    } else if (extradata_size >= 3 && extradata_size < INT_MAX - 0x1ff && extradata[0] == 2) {
+        int overall_len = 3;
+        extradata++;
+        for (i=0; i<2; i++, extradata++) {
+            header_len[i] = 0;
+            for (; overall_len < extradata_size && *extradata==0xff; extradata++) {
+                header_len[i] += 0xff;
+                overall_len   += 0xff + 1;
+            }
+            header_len[i] += *extradata;
+            overall_len   += *extradata;
+            if (overall_len > extradata_size)
+                return -1;
+        }
+        header_len[2] = extradata_size - overall_len;
+        header_start[0] = extradata;
+        header_start[1] = header_start[0] + header_len[0];
+        header_start[2] = header_start[1] + header_len[1];
+    } else {
+        return -1;
+    }
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/xiph.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/xiph.h
new file mode 100644
index 000000000..1741a51b6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/xiph.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2007 The FFmpeg Project
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_XIPH_H
+#define AVCODEC_XIPH_H
+
+#include "libavutil/common.h"
+
+/**
+ * Split a single extradata buffer into the three headers that most
+ * Xiph codecs use. (e.g. Theora and Vorbis)
+ * Works both with Matroska's packing and lavc's packing.
+ *
+ * @param[in] extradata The single chunk that combines all three headers
+ * @param[in] extradata_size The size of the extradata buffer
+ * @param[in] first_header_size The size of the first header, used to
+ * differentiate between the Matroska packing and lavc packing.
+ * @param[out] header_start Pointers to the start of the three separate headers.
+ * @param[out] header_len The sizes of each of the three headers.
+ * @return On error a negative value is returned, on success zero.
+ */
+int avpriv_split_xiph_headers(const uint8_t *extradata, int extradata_size,
+                              int first_header_size, const uint8_t *header_start[3],
+                              int header_len[3]);
+
+#endif /* AVCODEC_XIPH_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/xvmc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/xvmc.h
new file mode 100644
index 000000000..465ee78d6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/xvmc.h
@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2003 Ivan Kalvachev
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_XVMC_H
+#define AVCODEC_XVMC_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_xvmc
+ * Public libavcodec XvMC header.
+ */
+
+#include <X11/extensions/XvMC.h>
+
+#include "libavutil/attributes.h"
+#include "version.h"
+#include "avcodec.h"
+
+/**
+ * @defgroup lavc_codec_hwaccel_xvmc XvMC
+ * @ingroup lavc_codec_hwaccel
+ *
+ * @{
+ */
+
+#define AV_XVMC_ID                    0x1DC711C0  /**< special value to ensure that regular pixel routines haven't corrupted the struct
+                                                       the number is 1337 speak for the letters IDCT MCo (motion compensation) */
+
+struct attribute_deprecated xvmc_pix_fmt {
+    /** The field contains the special constant value AV_XVMC_ID.
+        It is used as a test that the application correctly uses the API,
+        and that there is no corruption caused by pixel routines.
+        - application - set during initialization
+        - libavcodec  - unchanged
+    */
+    int             xvmc_id;
+
+    /** Pointer to the block array allocated by XvMCCreateBlocks().
+        The array has to be freed by XvMCDestroyBlocks().
+        Each group of 64 values represents one data block of differential
+        pixel information (in MoCo mode) or coefficients for IDCT.
+        - application - set the pointer during initialization
+        - libavcodec  - fills coefficients/pixel data into the array
+    */
+    short*          data_blocks;
+
+    /** Pointer to the macroblock description array allocated by
+        XvMCCreateMacroBlocks() and freed by XvMCDestroyMacroBlocks().
+        - application - set the pointer during initialization
+        - libavcodec  - fills description data into the array
+    */
+    XvMCMacroBlock* mv_blocks;
+
+    /** Number of macroblock descriptions that can be stored in the mv_blocks
+        array.
+        - application - set during initialization
+        - libavcodec  - unchanged
+    */
+    int             allocated_mv_blocks;
+
+    /** Number of blocks that can be stored at once in the data_blocks array.
+        - application - set during initialization
+        - libavcodec  - unchanged
+    */
+    int             allocated_data_blocks;
+
+    /** Indicate that the hardware would interpret data_blocks as IDCT
+        coefficients and perform IDCT on them.
+        - application - set during initialization
+        - libavcodec  - unchanged
+    */
+    int             idct;
+
+    /** In MoCo mode it indicates that intra macroblocks are assumed to be in
+        unsigned format; same as the XVMC_INTRA_UNSIGNED flag.
+        - application - set during initialization
+        - libavcodec  - unchanged
+    */
+    int             unsigned_intra;
+
+    /** Pointer to the surface allocated by XvMCCreateSurface().
+        It has to be freed by XvMCDestroySurface() on application exit.
+        It identifies the frame and its state on the video hardware.
+        - application - set during initialization
+        - libavcodec  - unchanged
+    */
+    XvMCSurface*    p_surface;
+
+/** Set by the decoder before calling ff_draw_horiz_band(),
+    needed by the XvMCRenderSurface function. */
+//@{
+    /** Pointer to the surface used as past reference
+        - application - unchanged
+        - libavcodec  - set
+    */
+    XvMCSurface*    p_past_surface;
+
+    /** Pointer to the surface used as future reference
+        - application - unchanged
+        - libavcodec  - set
+    */
+    XvMCSurface*    p_future_surface;
+
+    /** top/bottom field or frame
+        - application - unchanged
+        - libavcodec  - set
+    */
+    unsigned int    picture_structure;
+
+    /** XVMC_SECOND_FIELD - 1st or 2nd field in the sequence
+        - application - unchanged
+        - libavcodec  - set
+    */
+    unsigned int    flags;
+//}@
+
+    /** Number of macroblock descriptions in the mv_blocks array
+        that have already been passed to the hardware.
+        - application - zeroes it on get_buffer().
+                        A successful ff_draw_horiz_band() may increment it
+                        with filled_mb_block_num or zero both.
+        - libavcodec  - unchanged
+    */
+    int             start_mv_blocks_num;
+
+    /** Number of new macroblock descriptions in the mv_blocks array (after
+        start_mv_blocks_num) that are filled by libavcodec and have to be
+        passed to the hardware.
+        - application - zeroes it on get_buffer() or after successful
+                        ff_draw_horiz_band().
+        - libavcodec  - increment with one of each stored MB
+    */
+    int             filled_mv_blocks_num;
+
+    /** Number of the next free data block; one data block consists of
+        64 short values in the data_blocks array.
+        All blocks before this one have already been claimed by placing their
+        position into the corresponding block description structure field,
+        that are part of the mv_blocks array.
+        - application - zeroes it on get_buffer().
+                        A successful ff_draw_horiz_band() may zero it together
+                        with start_mb_blocks_num.
+        - libavcodec  - each decoded macroblock increases it by the number
+                        of coded blocks it contains.
+    */
+    int             next_free_data_block_num;
+};
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_XVMC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavdevice/alldevices.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavdevice/alldevices.c
new file mode 100644
index 000000000..863343325
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavdevice/alldevices.c
@@ -0,0 +1,68 @@
+/*
+ * Register all the grabbing devices.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/thread.h"
+#include "libavformat/internal.h"
+#include "avdevice.h"
+
+/* devices */
+extern AVInputFormat  ff_alsa_demuxer;
+extern AVOutputFormat ff_alsa_muxer;
+extern AVInputFormat  ff_android_camera_demuxer;
+extern AVInputFormat  ff_avfoundation_demuxer;
+extern AVInputFormat  ff_bktr_demuxer;
+extern AVOutputFormat ff_caca_muxer;
+extern AVInputFormat  ff_decklink_demuxer;
+extern AVOutputFormat ff_decklink_muxer;
+extern AVInputFormat  ff_dshow_demuxer;
+extern AVInputFormat  ff_fbdev_demuxer;
+extern AVOutputFormat ff_fbdev_muxer;
+extern AVInputFormat  ff_gdigrab_demuxer;
+extern AVInputFormat  ff_iec61883_demuxer;
+extern AVInputFormat  ff_jack_demuxer;
+extern AVInputFormat  ff_kmsgrab_demuxer;
+extern AVInputFormat  ff_lavfi_demuxer;
+extern AVInputFormat  ff_openal_demuxer;
+extern AVOutputFormat ff_opengl_muxer;
+extern AVInputFormat  ff_oss_demuxer;
+extern AVOutputFormat ff_oss_muxer;
+extern AVInputFormat  ff_pulse_demuxer;
+extern AVOutputFormat ff_pulse_muxer;
+extern AVOutputFormat ff_sdl2_muxer;
+extern AVInputFormat  ff_sndio_demuxer;
+extern AVOutputFormat ff_sndio_muxer;
+extern AVInputFormat  ff_v4l2_demuxer;
+extern AVOutputFormat ff_v4l2_muxer;
+extern AVInputFormat  ff_vfwcap_demuxer;
+extern AVInputFormat  ff_xcbgrab_demuxer;
+extern AVOutputFormat ff_xv_muxer;
+
+/* external libraries */
+extern AVInputFormat  ff_libcdio_demuxer;
+extern AVInputFormat  ff_libdc1394_demuxer;
+
+#include "libavdevice/outdev_list.c"
+#include "libavdevice/indev_list.c"
+
+void avdevice_register_all(void)
+{
+    avpriv_register_devices(outdev_list, indev_list);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavdevice/indev_list.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavdevice/indev_list.c
new file mode 100644
index 000000000..03ffb4036
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavdevice/indev_list.c
@@ -0,0 +1,2 @@
+static const AVInputFormat * const indev_list[] = {
+    NULL };
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavdevice/outdev_list.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavdevice/outdev_list.c
new file mode 100644
index 000000000..d1b87ed7b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavdevice/outdev_list.c
@@ -0,0 +1,2 @@
+static const AVOutputFormat * const outdev_list[] = {
+    NULL };
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/allfilters.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/allfilters.c
new file mode 100644
index 000000000..04a3df7d5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/allfilters.c
@@ -0,0 +1,536 @@
+/*
+ * filter registration
+ * Copyright (c) 2008 Vitor Sessak
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/thread.h"
+#include "avfilter.h"
+#include "config.h"
+
+extern AVFilter ff_af_abench;
+extern AVFilter ff_af_acompressor;
+extern AVFilter ff_af_acontrast;
+extern AVFilter ff_af_acopy;
+extern AVFilter ff_af_acue;
+extern AVFilter ff_af_acrossfade;
+extern AVFilter ff_af_acrossover;
+extern AVFilter ff_af_acrusher;
+extern AVFilter ff_af_adeclick;
+extern AVFilter ff_af_adeclip;
+extern AVFilter ff_af_adelay;
+extern AVFilter ff_af_aderivative;
+extern AVFilter ff_af_aecho;
+extern AVFilter ff_af_aemphasis;
+extern AVFilter ff_af_aeval;
+extern AVFilter ff_af_afade;
+extern AVFilter ff_af_afftdn;
+extern AVFilter ff_af_afftfilt;
+extern AVFilter ff_af_afir;
+extern AVFilter ff_af_aformat;
+extern AVFilter ff_af_agate;
+extern AVFilter ff_af_aiir;
+extern AVFilter ff_af_aintegral;
+extern AVFilter ff_af_ainterleave;
+extern AVFilter ff_af_alimiter;
+extern AVFilter ff_af_allpass;
+extern AVFilter ff_af_aloop;
+extern AVFilter ff_af_amerge;
+extern AVFilter ff_af_ametadata;
+extern AVFilter ff_af_amix;
+extern AVFilter ff_af_amultiply;
+extern AVFilter ff_af_anequalizer;
+extern AVFilter ff_af_anlmdn;
+extern AVFilter ff_af_anull;
+extern AVFilter ff_af_apad;
+extern AVFilter ff_af_aperms;
+extern AVFilter ff_af_aphaser;
+extern AVFilter ff_af_apulsator;
+extern AVFilter ff_af_arealtime;
+extern AVFilter ff_af_aresample;
+extern AVFilter ff_af_areverse;
+extern AVFilter ff_af_aselect;
+extern AVFilter ff_af_asendcmd;
+extern AVFilter ff_af_asetnsamples;
+extern AVFilter ff_af_asetpts;
+extern AVFilter ff_af_asetrate;
+extern AVFilter ff_af_asettb;
+extern AVFilter ff_af_ashowinfo;
+extern AVFilter ff_af_asidedata;
+extern AVFilter ff_af_asoftclip;
+extern AVFilter ff_af_asplit;
+extern AVFilter ff_af_asr;
+extern AVFilter ff_af_astats;
+extern AVFilter ff_af_astreamselect;
+extern AVFilter ff_af_atempo;
+extern AVFilter ff_af_atrim;
+extern AVFilter ff_af_azmq;
+extern AVFilter ff_af_bandpass;
+extern AVFilter ff_af_bandreject;
+extern AVFilter ff_af_bass;
+extern AVFilter ff_af_biquad;
+extern AVFilter ff_af_bs2b;
+extern AVFilter ff_af_channelmap;
+extern AVFilter ff_af_channelsplit;
+extern AVFilter ff_af_chorus;
+extern AVFilter ff_af_compand;
+extern AVFilter ff_af_compensationdelay;
+extern AVFilter ff_af_crossfeed;
+extern AVFilter ff_af_crystalizer;
+extern AVFilter ff_af_dcshift;
+extern AVFilter ff_af_deesser;
+extern AVFilter ff_af_drmeter;
+extern AVFilter ff_af_dynaudnorm;
+extern AVFilter ff_af_earwax;
+extern AVFilter ff_af_ebur128;
+extern AVFilter ff_af_equalizer;
+extern AVFilter ff_af_extrastereo;
+extern AVFilter ff_af_firequalizer;
+extern AVFilter ff_af_flanger;
+extern AVFilter ff_af_haas;
+extern AVFilter ff_af_hdcd;
+extern AVFilter ff_af_headphone;
+extern AVFilter ff_af_highpass;
+extern AVFilter ff_af_highshelf;
+extern AVFilter ff_af_join;
+extern AVFilter ff_af_ladspa;
+extern AVFilter ff_af_loudnorm;
+extern AVFilter ff_af_lowpass;
+extern AVFilter ff_af_lowshelf;
+extern AVFilter ff_af_lv2;
+extern AVFilter ff_af_mcompand;
+extern AVFilter ff_af_pan;
+extern AVFilter ff_af_replaygain;
+extern AVFilter ff_af_resample;
+extern AVFilter ff_af_rubberband;
+extern AVFilter ff_af_sidechaincompress;
+extern AVFilter ff_af_sidechaingate;
+extern AVFilter ff_af_silencedetect;
+extern AVFilter ff_af_silenceremove;
+extern AVFilter ff_af_sofalizer;
+extern AVFilter ff_af_stereotools;
+extern AVFilter ff_af_stereowiden;
+extern AVFilter ff_af_superequalizer;
+extern AVFilter ff_af_surround;
+extern AVFilter ff_af_treble;
+extern AVFilter ff_af_tremolo;
+extern AVFilter ff_af_vibrato;
+extern AVFilter ff_af_volume;
+extern AVFilter ff_af_volumedetect;
+
+extern AVFilter ff_asrc_aevalsrc;
+extern AVFilter ff_asrc_anoisesrc;
+extern AVFilter ff_asrc_anullsrc;
+extern AVFilter ff_asrc_flite;
+extern AVFilter ff_asrc_hilbert;
+extern AVFilter ff_asrc_sinc;
+extern AVFilter ff_asrc_sine;
+
+extern AVFilter ff_asink_anullsink;
+
+extern AVFilter ff_vf_alphaextract;
+extern AVFilter ff_vf_alphamerge;
+extern AVFilter ff_vf_amplify;
+extern AVFilter ff_vf_ass;
+extern AVFilter ff_vf_atadenoise;
+extern AVFilter ff_vf_avgblur;
+extern AVFilter ff_vf_avgblur_opencl;
+extern AVFilter ff_vf_bbox;
+extern AVFilter ff_vf_bench;
+extern AVFilter ff_vf_bitplanenoise;
+extern AVFilter ff_vf_blackdetect;
+extern AVFilter ff_vf_blackframe;
+extern AVFilter ff_vf_blend;
+extern AVFilter ff_vf_bm3d;
+extern AVFilter ff_vf_boxblur;
+extern AVFilter ff_vf_boxblur_opencl;
+extern AVFilter ff_vf_bwdif;
+extern AVFilter ff_vf_chromahold;
+extern AVFilter ff_vf_chromakey;
+extern AVFilter ff_vf_chromashift;
+extern AVFilter ff_vf_ciescope;
+extern AVFilter ff_vf_codecview;
+extern AVFilter ff_vf_colorbalance;
+extern AVFilter ff_vf_colorchannelmixer;
+extern AVFilter ff_vf_colorkey;
+extern AVFilter ff_vf_colorkey_opencl;
+extern AVFilter ff_vf_colorhold;
+extern AVFilter ff_vf_colorlevels;
+extern AVFilter ff_vf_colormatrix;
+extern AVFilter ff_vf_colorspace;
+extern AVFilter ff_vf_convolution;
+extern AVFilter ff_vf_convolution_opencl;
+extern AVFilter ff_vf_convolve;
+extern AVFilter ff_vf_copy;
+extern AVFilter ff_vf_coreimage;
+extern AVFilter ff_vf_cover_rect;
+extern AVFilter ff_vf_crop;
+extern AVFilter ff_vf_cropdetect;
+extern AVFilter ff_vf_cue;
+extern AVFilter ff_vf_curves;
+extern AVFilter ff_vf_datascope;
+extern AVFilter ff_vf_dctdnoiz;
+extern AVFilter ff_vf_deband;
+extern AVFilter ff_vf_deblock;
+extern AVFilter ff_vf_decimate;
+extern AVFilter ff_vf_deconvolve;
+extern AVFilter ff_vf_dedot;
+extern AVFilter ff_vf_deflate;
+extern AVFilter ff_vf_deflicker;
+extern AVFilter ff_vf_deinterlace_qsv;
+extern AVFilter ff_vf_deinterlace_vaapi;
+extern AVFilter ff_vf_dejudder;
+extern AVFilter ff_vf_delogo;
+extern AVFilter ff_vf_denoise_vaapi;
+extern AVFilter ff_vf_derain;
+extern AVFilter ff_vf_deshake;
+extern AVFilter ff_vf_despill;
+extern AVFilter ff_vf_detelecine;
+extern AVFilter ff_vf_dilation;
+extern AVFilter ff_vf_dilation_opencl;
+extern AVFilter ff_vf_displace;
+extern AVFilter ff_vf_doubleweave;
+extern AVFilter ff_vf_drawbox;
+extern AVFilter ff_vf_drawgraph;
+extern AVFilter ff_vf_drawgrid;
+extern AVFilter ff_vf_drawtext;
+extern AVFilter ff_vf_edgedetect;
+extern AVFilter ff_vf_elbg;
+extern AVFilter ff_vf_entropy;
+extern AVFilter ff_vf_eq;
+extern AVFilter ff_vf_erosion;
+extern AVFilter ff_vf_erosion_opencl;
+extern AVFilter ff_vf_extractplanes;
+extern AVFilter ff_vf_fade;
+extern AVFilter ff_vf_fftdnoiz;
+extern AVFilter ff_vf_fftfilt;
+extern AVFilter ff_vf_field;
+extern AVFilter ff_vf_fieldhint;
+extern AVFilter ff_vf_fieldmatch;
+extern AVFilter ff_vf_fieldorder;
+extern AVFilter ff_vf_fillborders;
+extern AVFilter ff_vf_find_rect;
+extern AVFilter ff_vf_floodfill;
+extern AVFilter ff_vf_format;
+extern AVFilter ff_vf_fps;
+extern AVFilter ff_vf_framepack;
+extern AVFilter ff_vf_framerate;
+extern AVFilter ff_vf_framestep;
+extern AVFilter ff_vf_freezedetect;
+extern AVFilter ff_vf_frei0r;
+extern AVFilter ff_vf_fspp;
+extern AVFilter ff_vf_gblur;
+extern AVFilter ff_vf_geq;
+extern AVFilter ff_vf_gradfun;
+extern AVFilter ff_vf_graphmonitor;
+extern AVFilter ff_vf_greyedge;
+extern AVFilter ff_vf_haldclut;
+extern AVFilter ff_vf_hflip;
+extern AVFilter ff_vf_histeq;
+extern AVFilter ff_vf_histogram;
+extern AVFilter ff_vf_hqdn3d;
+extern AVFilter ff_vf_hqx;
+extern AVFilter ff_vf_hstack;
+extern AVFilter ff_vf_hue;
+extern AVFilter ff_vf_hwdownload;
+extern AVFilter ff_vf_hwmap;
+extern AVFilter ff_vf_hwupload;
+extern AVFilter ff_vf_hwupload_cuda;
+extern AVFilter ff_vf_hysteresis;
+extern AVFilter ff_vf_idet;
+extern AVFilter ff_vf_il;
+extern AVFilter ff_vf_inflate;
+extern AVFilter ff_vf_interlace;
+extern AVFilter ff_vf_interleave;
+extern AVFilter ff_vf_kerndeint;
+extern AVFilter ff_vf_lagfun;
+extern AVFilter ff_vf_lenscorrection;
+extern AVFilter ff_vf_lensfun;
+extern AVFilter ff_vf_libvmaf;
+extern AVFilter ff_vf_limiter;
+extern AVFilter ff_vf_loop;
+extern AVFilter ff_vf_lumakey;
+extern AVFilter ff_vf_lut;
+extern AVFilter ff_vf_lut1d;
+extern AVFilter ff_vf_lut2;
+extern AVFilter ff_vf_lut3d;
+extern AVFilter ff_vf_lutrgb;
+extern AVFilter ff_vf_lutyuv;
+extern AVFilter ff_vf_maskedclamp;
+extern AVFilter ff_vf_maskedmerge;
+extern AVFilter ff_vf_maskfun;
+extern AVFilter ff_vf_mcdeint;
+extern AVFilter ff_vf_mergeplanes;
+extern AVFilter ff_vf_mestimate;
+extern AVFilter ff_vf_metadata;
+extern AVFilter ff_vf_midequalizer;
+extern AVFilter ff_vf_minterpolate;
+extern AVFilter ff_vf_mix;
+extern AVFilter ff_vf_mpdecimate;
+extern AVFilter ff_vf_negate;
+extern AVFilter ff_vf_nlmeans;
+extern AVFilter ff_vf_nlmeans_opencl;
+extern AVFilter ff_vf_nnedi;
+extern AVFilter ff_vf_noformat;
+extern AVFilter ff_vf_noise;
+extern AVFilter ff_vf_normalize;
+extern AVFilter ff_vf_null;
+extern AVFilter ff_vf_ocr;
+extern AVFilter ff_vf_ocv;
+extern AVFilter ff_vf_oscilloscope;
+extern AVFilter ff_vf_overlay;
+extern AVFilter ff_vf_overlay_opencl;
+extern AVFilter ff_vf_overlay_qsv;
+extern AVFilter ff_vf_owdenoise;
+extern AVFilter ff_vf_pad;
+extern AVFilter ff_vf_palettegen;
+extern AVFilter ff_vf_paletteuse;
+extern AVFilter ff_vf_perms;
+extern AVFilter ff_vf_perspective;
+extern AVFilter ff_vf_phase;
+extern AVFilter ff_vf_pixdesctest;
+extern AVFilter ff_vf_pixscope;
+extern AVFilter ff_vf_pp;
+extern AVFilter ff_vf_pp7;
+extern AVFilter ff_vf_premultiply;
+extern AVFilter ff_vf_prewitt;
+extern AVFilter ff_vf_prewitt_opencl;
+extern AVFilter ff_vf_procamp_vaapi;
+extern AVFilter ff_vf_program_opencl;
+extern AVFilter ff_vf_pseudocolor;
+extern AVFilter ff_vf_psnr;
+extern AVFilter ff_vf_pullup;
+extern AVFilter ff_vf_qp;
+extern AVFilter ff_vf_random;
+extern AVFilter ff_vf_readeia608;
+extern AVFilter ff_vf_readvitc;
+extern AVFilter ff_vf_realtime;
+extern AVFilter ff_vf_remap;
+extern AVFilter ff_vf_removegrain;
+extern AVFilter ff_vf_removelogo;
+extern AVFilter ff_vf_repeatfields;
+extern AVFilter ff_vf_reverse;
+extern AVFilter ff_vf_rgbashift;
+extern AVFilter ff_vf_roberts;
+extern AVFilter ff_vf_roberts_opencl;
+extern AVFilter ff_vf_rotate;
+extern AVFilter ff_vf_sab;
+extern AVFilter ff_vf_scale;
+extern AVFilter ff_vf_scale_cuda;
+extern AVFilter ff_vf_scale_npp;
+extern AVFilter ff_vf_scale_qsv;
+extern AVFilter ff_vf_scale_vaapi;
+extern AVFilter ff_vf_scale2ref;
+extern AVFilter ff_vf_select;
+extern AVFilter ff_vf_selectivecolor;
+extern AVFilter ff_vf_sendcmd;
+extern AVFilter ff_vf_separatefields;
+extern AVFilter ff_vf_setdar;
+extern AVFilter ff_vf_setfield;
+extern AVFilter ff_vf_setparams;
+extern AVFilter ff_vf_setpts;
+extern AVFilter ff_vf_setrange;
+extern AVFilter ff_vf_setsar;
+extern AVFilter ff_vf_settb;
+extern AVFilter ff_vf_sharpness_vaapi;
+extern AVFilter ff_vf_showinfo;
+extern AVFilter ff_vf_showpalette;
+extern AVFilter ff_vf_shuffleframes;
+extern AVFilter ff_vf_shuffleplanes;
+extern AVFilter ff_vf_sidedata;
+extern AVFilter ff_vf_signalstats;
+extern AVFilter ff_vf_signature;
+extern AVFilter ff_vf_smartblur;
+extern AVFilter ff_vf_sobel;
+extern AVFilter ff_vf_sobel_opencl;
+extern AVFilter ff_vf_split;
+extern AVFilter ff_vf_spp;
+extern AVFilter ff_vf_sr;
+extern AVFilter ff_vf_ssim;
+extern AVFilter ff_vf_stereo3d;
+extern AVFilter ff_vf_streamselect;
+extern AVFilter ff_vf_subtitles;
+extern AVFilter ff_vf_super2xsai;
+extern AVFilter ff_vf_swaprect;
+extern AVFilter ff_vf_swapuv;
+extern AVFilter ff_vf_tblend;
+extern AVFilter ff_vf_telecine;
+extern AVFilter ff_vf_threshold;
+extern AVFilter ff_vf_thumbnail;
+extern AVFilter ff_vf_thumbnail_cuda;
+extern AVFilter ff_vf_tile;
+extern AVFilter ff_vf_tinterlace;
+extern AVFilter ff_vf_tlut2;
+extern AVFilter ff_vf_tmix;
+extern AVFilter ff_vf_tonemap;
+extern AVFilter ff_vf_tonemap_opencl;
+extern AVFilter ff_vf_tpad;
+extern AVFilter ff_vf_transpose;
+extern AVFilter ff_vf_transpose_npp;
+extern AVFilter ff_vf_transpose_opencl;
+extern AVFilter ff_vf_transpose_vaapi;
+extern AVFilter ff_vf_trim;
+extern AVFilter ff_vf_unpremultiply;
+extern AVFilter ff_vf_unsharp;
+extern AVFilter ff_vf_unsharp_opencl;
+extern AVFilter ff_vf_uspp;
+extern AVFilter ff_vf_vaguedenoiser;
+extern AVFilter ff_vf_vectorscope;
+extern AVFilter ff_vf_vflip;
+extern AVFilter ff_vf_vfrdet;
+extern AVFilter ff_vf_vibrance;
+extern AVFilter ff_vf_vidstabdetect;
+extern AVFilter ff_vf_vidstabtransform;
+extern AVFilter ff_vf_vignette;
+extern AVFilter ff_vf_vmafmotion;
+extern AVFilter ff_vf_vpp_qsv;
+extern AVFilter ff_vf_vstack;
+extern AVFilter ff_vf_w3fdif;
+extern AVFilter ff_vf_waveform;
+extern AVFilter ff_vf_weave;
+extern AVFilter ff_vf_xbr;
+extern AVFilter ff_vf_xmedian;
+extern AVFilter ff_vf_xstack;
+extern AVFilter ff_vf_yadif;
+extern AVFilter ff_vf_yadif_cuda;
+extern AVFilter ff_vf_zmq;
+extern AVFilter ff_vf_zoompan;
+extern AVFilter ff_vf_zscale;
+
+extern AVFilter ff_vsrc_allrgb;
+extern AVFilter ff_vsrc_allyuv;
+extern AVFilter ff_vsrc_cellauto;
+extern AVFilter ff_vsrc_color;
+extern AVFilter ff_vsrc_coreimagesrc;
+extern AVFilter ff_vsrc_frei0r_src;
+extern AVFilter ff_vsrc_haldclutsrc;
+extern AVFilter ff_vsrc_life;
+extern AVFilter ff_vsrc_mandelbrot;
+extern AVFilter ff_vsrc_mptestsrc;
+extern AVFilter ff_vsrc_nullsrc;
+extern AVFilter ff_vsrc_openclsrc;
+extern AVFilter ff_vsrc_pal75bars;
+extern AVFilter ff_vsrc_pal100bars;
+extern AVFilter ff_vsrc_rgbtestsrc;
+extern AVFilter ff_vsrc_smptebars;
+extern AVFilter ff_vsrc_smptehdbars;
+extern AVFilter ff_vsrc_testsrc;
+extern AVFilter ff_vsrc_testsrc2;
+extern AVFilter ff_vsrc_yuvtestsrc;
+
+extern AVFilter ff_vsink_nullsink;
+
+/* multimedia filters */
+extern AVFilter ff_avf_abitscope;
+extern AVFilter ff_avf_adrawgraph;
+extern AVFilter ff_avf_agraphmonitor;
+extern AVFilter ff_avf_ahistogram;
+extern AVFilter ff_avf_aphasemeter;
+extern AVFilter ff_avf_avectorscope;
+extern AVFilter ff_avf_concat;
+extern AVFilter ff_avf_showcqt;
+extern AVFilter ff_avf_showfreqs;
+extern AVFilter ff_avf_showspatial;
+extern AVFilter ff_avf_showspectrum;
+extern AVFilter ff_avf_showspectrumpic;
+extern AVFilter ff_avf_showvolume;
+extern AVFilter ff_avf_showwaves;
+extern AVFilter ff_avf_showwavespic;
+extern AVFilter ff_vaf_spectrumsynth;
+
+/* multimedia sources */
+extern AVFilter ff_avsrc_amovie;
+extern AVFilter ff_avsrc_movie;
+
+/* those filters are part of public or internal API,
+ * they are formatted to not be found by the grep
+ * as they are manually added again (due to their 'names'
+ * being the same while having different 'types'). */
+extern  AVFilter ff_asrc_abuffer;
+extern  AVFilter ff_vsrc_buffer;
+extern  AVFilter ff_asink_abuffer;
+extern  AVFilter ff_vsink_buffer;
+extern AVFilter ff_af_afifo;
+extern AVFilter ff_vf_fifo;
+
+#include "libavfilter/filter_list.c"
+
+
+const AVFilter *av_filter_iterate(void **opaque)
+{
+    uintptr_t i = (uintptr_t)*opaque;
+    const AVFilter *f = filter_list[i];
+
+    if (f)
+        *opaque = (void*)(i + 1);
+
+    return f;
+}
+
+const AVFilter *avfilter_get_by_name(const char *name)
+{
+    const AVFilter *f = NULL;
+    void *opaque = 0;
+
+    if (!name)
+        return NULL;
+
+    while ((f = av_filter_iterate(&opaque)))
+        if (!strcmp(f->name, name))
+            return (AVFilter *)f;
+
+    return NULL;
+}
+
+
+#if FF_API_NEXT
+FF_DISABLE_DEPRECATION_WARNINGS
+static AVOnce av_filter_next_init = AV_ONCE_INIT;
+
+static void av_filter_init_next(void)
+{
+    AVFilter *prev = NULL, *p;
+    void *i = 0;
+    while ((p = (AVFilter*)av_filter_iterate(&i))) {
+        if (prev)
+            prev->next = p;
+        prev = p;
+    }
+}
+
+void avfilter_register_all(void)
+{
+    ff_thread_once(&av_filter_next_init, av_filter_init_next);
+}
+
+int avfilter_register(AVFilter *filter)
+{
+    ff_thread_once(&av_filter_next_init, av_filter_init_next);
+
+    return 0;
+}
+
+const AVFilter *avfilter_next(const AVFilter *prev)
+{
+    ff_thread_once(&av_filter_next_init, av_filter_init_next);
+
+    return prev ? prev->next : filter_list[0];
+}
+
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/avfilter.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/avfilter.h
new file mode 100644
index 000000000..9d70e7118
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/avfilter.h
@@ -0,0 +1,1168 @@
+/*
+ * filter layer
+ * Copyright (c) 2007 Bobby Bingham
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_AVFILTER_H
+#define AVFILTER_AVFILTER_H
+
+/**
+ * @file
+ * @ingroup lavfi
+ * Main libavfilter public API header
+ */
+
+/**
+ * @defgroup lavfi libavfilter
+ * Graph-based frame editing library.
+ *
+ * @{
+ */
+
+#include <stddef.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/avutil.h"
+#include "libavutil/buffer.h"
+#include "libavutil/dict.h"
+#include "libavutil/frame.h"
+#include "libavutil/log.h"
+#include "libavutil/samplefmt.h"
+#include "libavutil/pixfmt.h"
+#include "libavutil/rational.h"
+
+#include "libavfilter/version.h"
+
+/**
+ * Return the LIBAVFILTER_VERSION_INT constant.
+ */
+unsigned avfilter_version(void);
+
+/**
+ * Return the libavfilter build-time configuration.
+ */
+const char *avfilter_configuration(void);
+
+/**
+ * Return the libavfilter license.
+ */
+const char *avfilter_license(void);
+
+typedef struct AVFilterContext AVFilterContext;
+typedef struct AVFilterLink    AVFilterLink;
+typedef struct AVFilterPad     AVFilterPad;
+typedef struct AVFilterFormats AVFilterFormats;
+
+/**
+ * Get the number of elements in a NULL-terminated array of AVFilterPads (e.g.
+ * AVFilter.inputs/outputs).
+ */
+int avfilter_pad_count(const AVFilterPad *pads);
+
+/**
+ * Get the name of an AVFilterPad.
+ *
+ * @param pads an array of AVFilterPads
+ * @param pad_idx index of the pad in the array it; is the caller's
+ *                responsibility to ensure the index is valid
+ *
+ * @return name of the pad_idx'th pad in pads
+ */
+const char *avfilter_pad_get_name(const AVFilterPad *pads, int pad_idx);
+
+/**
+ * Get the type of an AVFilterPad.
+ *
+ * @param pads an array of AVFilterPads
+ * @param pad_idx index of the pad in the array; it is the caller's
+ *                responsibility to ensure the index is valid
+ *
+ * @return type of the pad_idx'th pad in pads
+ */
+enum AVMediaType avfilter_pad_get_type(const AVFilterPad *pads, int pad_idx);
+
+/**
+ * The number of the filter inputs is not determined just by AVFilter.inputs.
+ * The filter might add additional inputs during initialization depending on the
+ * options supplied to it.
+ */
+#define AVFILTER_FLAG_DYNAMIC_INPUTS        (1 << 0)
+/**
+ * The number of the filter outputs is not determined just by AVFilter.outputs.
+ * The filter might add additional outputs during initialization depending on
+ * the options supplied to it.
+ */
+#define AVFILTER_FLAG_DYNAMIC_OUTPUTS       (1 << 1)
+/**
+ * The filter supports multithreading by splitting frames into multiple parts
+ * and processing them concurrently.
+ */
+#define AVFILTER_FLAG_SLICE_THREADS         (1 << 2)
+/**
+ * Some filters support a generic "enable" expression option that can be used
+ * to enable or disable a filter in the timeline. Filters supporting this
+ * option have this flag set. When the enable expression is false, the default
+ * no-op filter_frame() function is called in place of the filter_frame()
+ * callback defined on each input pad, thus the frame is passed unchanged to
+ * the next filters.
+ */
+#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC  (1 << 16)
+/**
+ * Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will
+ * have its filter_frame() callback(s) called as usual even when the enable
+ * expression is false. The filter will disable filtering within the
+ * filter_frame() callback(s) itself, for example executing code depending on
+ * the AVFilterContext->is_disabled value.
+ */
+#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL (1 << 17)
+/**
+ * Handy mask to test whether the filter supports or no the timeline feature
+ * (internally or generically).
+ */
+#define AVFILTER_FLAG_SUPPORT_TIMELINE (AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL)
+
+/**
+ * Filter definition. This defines the pads a filter contains, and all the
+ * callback functions used to interact with the filter.
+ */
+typedef struct AVFilter {
+    /**
+     * Filter name. Must be non-NULL and unique among filters.
+     */
+    const char *name;
+
+    /**
+     * A description of the filter. May be NULL.
+     *
+     * You should use the NULL_IF_CONFIG_SMALL() macro to define it.
+     */
+    const char *description;
+
+    /**
+     * List of inputs, terminated by a zeroed element.
+     *
+     * NULL if there are no (static) inputs. Instances of filters with
+     * AVFILTER_FLAG_DYNAMIC_INPUTS set may have more inputs than present in
+     * this list.
+     */
+    const AVFilterPad *inputs;
+    /**
+     * List of outputs, terminated by a zeroed element.
+     *
+     * NULL if there are no (static) outputs. Instances of filters with
+     * AVFILTER_FLAG_DYNAMIC_OUTPUTS set may have more outputs than present in
+     * this list.
+     */
+    const AVFilterPad *outputs;
+
+    /**
+     * A class for the private data, used to declare filter private AVOptions.
+     * This field is NULL for filters that do not declare any options.
+     *
+     * If this field is non-NULL, the first member of the filter private data
+     * must be a pointer to AVClass, which will be set by libavfilter generic
+     * code to this class.
+     */
+    const AVClass *priv_class;
+
+    /**
+     * A combination of AVFILTER_FLAG_*
+     */
+    int flags;
+
+    /*****************************************************************
+     * All fields below this line are not part of the public API. They
+     * may not be used outside of libavfilter and can be changed and
+     * removed at will.
+     * New public fields should be added right above.
+     *****************************************************************
+     */
+
+    /**
+     * Filter pre-initialization function
+     *
+     * This callback will be called immediately after the filter context is
+     * allocated, to allow allocating and initing sub-objects.
+     *
+     * If this callback is not NULL, the uninit callback will be called on
+     * allocation failure.
+     *
+     * @return 0 on success,
+     *         AVERROR code on failure (but the code will be
+     *           dropped and treated as ENOMEM by the calling code)
+     */
+    int (*preinit)(AVFilterContext *ctx);
+
+    /**
+     * Filter initialization function.
+     *
+     * This callback will be called only once during the filter lifetime, after
+     * all the options have been set, but before links between filters are
+     * established and format negotiation is done.
+     *
+     * Basic filter initialization should be done here. Filters with dynamic
+     * inputs and/or outputs should create those inputs/outputs here based on
+     * provided options. No more changes to this filter's inputs/outputs can be
+     * done after this callback.
+     *
+     * This callback must not assume that the filter links exist or frame
+     * parameters are known.
+     *
+     * @ref AVFilter.uninit "uninit" is guaranteed to be called even if
+     * initialization fails, so this callback does not have to clean up on
+     * failure.
+     *
+     * @return 0 on success, a negative AVERROR on failure
+     */
+    int (*init)(AVFilterContext *ctx);
+
+    /**
+     * Should be set instead of @ref AVFilter.init "init" by the filters that
+     * want to pass a dictionary of AVOptions to nested contexts that are
+     * allocated during init.
+     *
+     * On return, the options dict should be freed and replaced with one that
+     * contains all the options which could not be processed by this filter (or
+     * with NULL if all the options were processed).
+     *
+     * Otherwise the semantics is the same as for @ref AVFilter.init "init".
+     */
+    int (*init_dict)(AVFilterContext *ctx, AVDictionary **options);
+
+    /**
+     * Filter uninitialization function.
+     *
+     * Called only once right before the filter is freed. Should deallocate any
+     * memory held by the filter, release any buffer references, etc. It does
+     * not need to deallocate the AVFilterContext.priv memory itself.
+     *
+     * This callback may be called even if @ref AVFilter.init "init" was not
+     * called or failed, so it must be prepared to handle such a situation.
+     */
+    void (*uninit)(AVFilterContext *ctx);
+
+    /**
+     * Query formats supported by the filter on its inputs and outputs.
+     *
+     * This callback is called after the filter is initialized (so the inputs
+     * and outputs are fixed), shortly before the format negotiation. This
+     * callback may be called more than once.
+     *
+     * This callback must set AVFilterLink.out_formats on every input link and
+     * AVFilterLink.in_formats on every output link to a list of pixel/sample
+     * formats that the filter supports on that link. For audio links, this
+     * filter must also set @ref AVFilterLink.in_samplerates "in_samplerates" /
+     * @ref AVFilterLink.out_samplerates "out_samplerates" and
+     * @ref AVFilterLink.in_channel_layouts "in_channel_layouts" /
+     * @ref AVFilterLink.out_channel_layouts "out_channel_layouts" analogously.
+     *
+     * This callback may be NULL for filters with one input, in which case
+     * libavfilter assumes that it supports all input formats and preserves
+     * them on output.
+     *
+     * @return zero on success, a negative value corresponding to an
+     * AVERROR code otherwise
+     */
+    int (*query_formats)(AVFilterContext *);
+
+    int priv_size;      ///< size of private data to allocate for the filter
+
+    int flags_internal; ///< Additional flags for avfilter internal use only.
+
+    /**
+     * Used by the filter registration system. Must not be touched by any other
+     * code.
+     */
+    struct AVFilter *next;
+
+    /**
+     * Make the filter instance process a command.
+     *
+     * @param cmd    the command to process, for handling simplicity all commands must be alphanumeric only
+     * @param arg    the argument for the command
+     * @param res    a buffer with size res_size where the filter(s) can return a response. This must not change when the command is not supported.
+     * @param flags  if AVFILTER_CMD_FLAG_FAST is set and the command would be
+     *               time consuming then a filter should treat it like an unsupported command
+     *
+     * @returns >=0 on success otherwise an error code.
+     *          AVERROR(ENOSYS) on unsupported commands
+     */
+    int (*process_command)(AVFilterContext *, const char *cmd, const char *arg, char *res, int res_len, int flags);
+
+    /**
+     * Filter initialization function, alternative to the init()
+     * callback. Args contains the user-supplied parameters, opaque is
+     * used for providing binary data.
+     */
+    int (*init_opaque)(AVFilterContext *ctx, void *opaque);
+
+    /**
+     * Filter activation function.
+     *
+     * Called when any processing is needed from the filter, instead of any
+     * filter_frame and request_frame on pads.
+     *
+     * The function must examine inlinks and outlinks and perform a single
+     * step of processing. If there is nothing to do, the function must do
+     * nothing and not return an error. If more steps are or may be
+     * possible, it must use ff_filter_set_ready() to schedule another
+     * activation.
+     */
+    int (*activate)(AVFilterContext *ctx);
+} AVFilter;
+
+/**
+ * Process multiple parts of the frame concurrently.
+ */
+#define AVFILTER_THREAD_SLICE (1 << 0)
+
+typedef struct AVFilterInternal AVFilterInternal;
+
+/** An instance of a filter */
+struct AVFilterContext {
+    const AVClass *av_class;        ///< needed for av_log() and filters common options
+
+    const AVFilter *filter;         ///< the AVFilter of which this is an instance
+
+    char *name;                     ///< name of this filter instance
+
+    AVFilterPad   *input_pads;      ///< array of input pads
+    AVFilterLink **inputs;          ///< array of pointers to input links
+    unsigned    nb_inputs;          ///< number of input pads
+
+    AVFilterPad   *output_pads;     ///< array of output pads
+    AVFilterLink **outputs;         ///< array of pointers to output links
+    unsigned    nb_outputs;         ///< number of output pads
+
+    void *priv;                     ///< private data for use by the filter
+
+    struct AVFilterGraph *graph;    ///< filtergraph this filter belongs to
+
+    /**
+     * Type of multithreading being allowed/used. A combination of
+     * AVFILTER_THREAD_* flags.
+     *
+     * May be set by the caller before initializing the filter to forbid some
+     * or all kinds of multithreading for this filter. The default is allowing
+     * everything.
+     *
+     * When the filter is initialized, this field is combined using bit AND with
+     * AVFilterGraph.thread_type to get the final mask used for determining
+     * allowed threading types. I.e. a threading type needs to be set in both
+     * to be allowed.
+     *
+     * After the filter is initialized, libavfilter sets this field to the
+     * threading type that is actually used (0 for no multithreading).
+     */
+    int thread_type;
+
+    /**
+     * An opaque struct for libavfilter internal use.
+     */
+    AVFilterInternal *internal;
+
+    struct AVFilterCommand *command_queue;
+
+    char *enable_str;               ///< enable expression string
+    void *enable;                   ///< parsed expression (AVExpr*)
+    double *var_values;             ///< variable values for the enable expression
+    int is_disabled;                ///< the enabled state from the last expression evaluation
+
+    /**
+     * For filters which will create hardware frames, sets the device the
+     * filter should create them in.  All other filters will ignore this field:
+     * in particular, a filter which consumes or processes hardware frames will
+     * instead use the hw_frames_ctx field in AVFilterLink to carry the
+     * hardware context information.
+     */
+    AVBufferRef *hw_device_ctx;
+
+    /**
+     * Max number of threads allowed in this filter instance.
+     * If <= 0, its value is ignored.
+     * Overrides global number of threads set per filter graph.
+     */
+    int nb_threads;
+
+    /**
+     * Ready status of the filter.
+     * A non-0 value means that the filter needs activating;
+     * a higher value suggests a more urgent activation.
+     */
+    unsigned ready;
+
+    /**
+     * Sets the number of extra hardware frames which the filter will
+     * allocate on its output links for use in following filters or by
+     * the caller.
+     *
+     * Some hardware filters require all frames that they will use for
+     * output to be defined in advance before filtering starts.  For such
+     * filters, any hardware frame pools used for output must therefore be
+     * of fixed size.  The extra frames set here are on top of any number
+     * that the filter needs internally in order to operate normally.
+     *
+     * This field must be set before the graph containing this filter is
+     * configured.
+     */
+    int extra_hw_frames;
+};
+
+/**
+ * A link between two filters. This contains pointers to the source and
+ * destination filters between which this link exists, and the indexes of
+ * the pads involved. In addition, this link also contains the parameters
+ * which have been negotiated and agreed upon between the filter, such as
+ * image dimensions, format, etc.
+ *
+ * Applications must not normally access the link structure directly.
+ * Use the buffersrc and buffersink API instead.
+ * In the future, access to the header may be reserved for filters
+ * implementation.
+ */
+struct AVFilterLink {
+    AVFilterContext *src;       ///< source filter
+    AVFilterPad *srcpad;        ///< output pad on the source filter
+
+    AVFilterContext *dst;       ///< dest filter
+    AVFilterPad *dstpad;        ///< input pad on the dest filter
+
+    enum AVMediaType type;      ///< filter media type
+
+    /* These parameters apply only to video */
+    int w;                      ///< agreed upon image width
+    int h;                      ///< agreed upon image height
+    AVRational sample_aspect_ratio; ///< agreed upon sample aspect ratio
+    /* These parameters apply only to audio */
+    uint64_t channel_layout;    ///< channel layout of current buffer (see libavutil/channel_layout.h)
+    int sample_rate;            ///< samples per second
+
+    int format;                 ///< agreed upon media format
+
+    /**
+     * Define the time base used by the PTS of the frames/samples
+     * which will pass through this link.
+     * During the configuration stage, each filter is supposed to
+     * change only the output timebase, while the timebase of the
+     * input link is assumed to be an unchangeable property.
+     */
+    AVRational time_base;
+
+    /*****************************************************************
+     * All fields below this line are not part of the public API. They
+     * may not be used outside of libavfilter and can be changed and
+     * removed at will.
+     * New public fields should be added right above.
+     *****************************************************************
+     */
+    /**
+     * Lists of formats and channel layouts supported by the input and output
+     * filters respectively. These lists are used for negotiating the format
+     * to actually be used, which will be loaded into the format and
+     * channel_layout members, above, when chosen.
+     *
+     */
+    AVFilterFormats *in_formats;
+    AVFilterFormats *out_formats;
+
+    /**
+     * Lists of channel layouts and sample rates used for automatic
+     * negotiation.
+     */
+    AVFilterFormats  *in_samplerates;
+    AVFilterFormats *out_samplerates;
+    struct AVFilterChannelLayouts  *in_channel_layouts;
+    struct AVFilterChannelLayouts *out_channel_layouts;
+
+    /**
+     * Audio only, the destination filter sets this to a non-zero value to
+     * request that buffers with the given number of samples should be sent to
+     * it. AVFilterPad.needs_fifo must also be set on the corresponding input
+     * pad.
+     * Last buffer before EOF will be padded with silence.
+     */
+    int request_samples;
+
+    /** stage of the initialization of the link properties (dimensions, etc) */
+    enum {
+        AVLINK_UNINIT = 0,      ///< not started
+        AVLINK_STARTINIT,       ///< started, but incomplete
+        AVLINK_INIT             ///< complete
+    } init_state;
+
+    /**
+     * Graph the filter belongs to.
+     */
+    struct AVFilterGraph *graph;
+
+    /**
+     * Current timestamp of the link, as defined by the most recent
+     * frame(s), in link time_base units.
+     */
+    int64_t current_pts;
+
+    /**
+     * Current timestamp of the link, as defined by the most recent
+     * frame(s), in AV_TIME_BASE units.
+     */
+    int64_t current_pts_us;
+
+    /**
+     * Index in the age array.
+     */
+    int age_index;
+
+    /**
+     * Frame rate of the stream on the link, or 1/0 if unknown or variable;
+     * if left to 0/0, will be automatically copied from the first input
+     * of the source filter if it exists.
+     *
+     * Sources should set it to the best estimation of the real frame rate.
+     * If the source frame rate is unknown or variable, set this to 1/0.
+     * Filters should update it if necessary depending on their function.
+     * Sinks can use it to set a default output frame rate.
+     * It is similar to the r_frame_rate field in AVStream.
+     */
+    AVRational frame_rate;
+
+    /**
+     * Buffer partially filled with samples to achieve a fixed/minimum size.
+     */
+    AVFrame *partial_buf;
+
+    /**
+     * Size of the partial buffer to allocate.
+     * Must be between min_samples and max_samples.
+     */
+    int partial_buf_size;
+
+    /**
+     * Minimum number of samples to filter at once. If filter_frame() is
+     * called with fewer samples, it will accumulate them in partial_buf.
+     * This field and the related ones must not be changed after filtering
+     * has started.
+     * If 0, all related fields are ignored.
+     */
+    int min_samples;
+
+    /**
+     * Maximum number of samples to filter at once. If filter_frame() is
+     * called with more samples, it will split them.
+     */
+    int max_samples;
+
+    /**
+     * Number of channels.
+     */
+    int channels;
+
+    /**
+     * Link processing flags.
+     */
+    unsigned flags;
+
+    /**
+     * Number of past frames sent through the link.
+     */
+    int64_t frame_count_in, frame_count_out;
+
+    /**
+     * A pointer to a FFFramePool struct.
+     */
+    void *frame_pool;
+
+    /**
+     * True if a frame is currently wanted on the output of this filter.
+     * Set when ff_request_frame() is called by the output,
+     * cleared when a frame is filtered.
+     */
+    int frame_wanted_out;
+
+    /**
+     * For hwaccel pixel formats, this should be a reference to the
+     * AVHWFramesContext describing the frames.
+     */
+    AVBufferRef *hw_frames_ctx;
+
+#ifndef FF_INTERNAL_FIELDS
+
+    /**
+     * Internal structure members.
+     * The fields below this limit are internal for libavfilter's use
+     * and must in no way be accessed by applications.
+     */
+    char reserved[0xF000];
+
+#else /* FF_INTERNAL_FIELDS */
+
+    /**
+     * Queue of frames waiting to be filtered.
+     */
+    FFFrameQueue fifo;
+
+    /**
+     * If set, the source filter can not generate a frame as is.
+     * The goal is to avoid repeatedly calling the request_frame() method on
+     * the same link.
+     */
+    int frame_blocked_in;
+
+    /**
+     * Link input status.
+     * If not zero, all attempts of filter_frame will fail with the
+     * corresponding code.
+     */
+    int status_in;
+
+    /**
+     * Timestamp of the input status change.
+     */
+    int64_t status_in_pts;
+
+    /**
+     * Link output status.
+     * If not zero, all attempts of request_frame will fail with the
+     * corresponding code.
+     */
+    int status_out;
+
+#endif /* FF_INTERNAL_FIELDS */
+
+};
+
+/**
+ * Link two filters together.
+ *
+ * @param src    the source filter
+ * @param srcpad index of the output pad on the source filter
+ * @param dst    the destination filter
+ * @param dstpad index of the input pad on the destination filter
+ * @return       zero on success
+ */
+int avfilter_link(AVFilterContext *src, unsigned srcpad,
+                  AVFilterContext *dst, unsigned dstpad);
+
+/**
+ * Free the link in *link, and set its pointer to NULL.
+ */
+void avfilter_link_free(AVFilterLink **link);
+
+#if FF_API_FILTER_GET_SET
+/**
+ * Get the number of channels of a link.
+ * @deprecated Use av_buffersink_get_channels()
+ */
+attribute_deprecated
+int avfilter_link_get_channels(AVFilterLink *link);
+#endif
+
+/**
+ * Set the closed field of a link.
+ * @deprecated applications are not supposed to mess with links, they should
+ * close the sinks.
+ */
+attribute_deprecated
+void avfilter_link_set_closed(AVFilterLink *link, int closed);
+
+/**
+ * Negotiate the media format, dimensions, etc of all inputs to a filter.
+ *
+ * @param filter the filter to negotiate the properties for its inputs
+ * @return       zero on successful negotiation
+ */
+int avfilter_config_links(AVFilterContext *filter);
+
+#define AVFILTER_CMD_FLAG_ONE   1 ///< Stop once a filter understood the command (for target=all for example), fast filters are favored automatically
+#define AVFILTER_CMD_FLAG_FAST  2 ///< Only execute command when its fast (like a video out that supports contrast adjustment in hw)
+
+/**
+ * Make the filter instance process a command.
+ * It is recommended to use avfilter_graph_send_command().
+ */
+int avfilter_process_command(AVFilterContext *filter, const char *cmd, const char *arg, char *res, int res_len, int flags);
+
+/**
+ * Iterate over all registered filters.
+ *
+ * @param opaque a pointer where libavfilter will store the iteration state. Must
+ *               point to NULL to start the iteration.
+ *
+ * @return the next registered filter or NULL when the iteration is
+ *         finished
+ */
+const AVFilter *av_filter_iterate(void **opaque);
+
+#if FF_API_NEXT
+/** Initialize the filter system. Register all builtin filters. */
+attribute_deprecated
+void avfilter_register_all(void);
+
+/**
+ * Register a filter. This is only needed if you plan to use
+ * avfilter_get_by_name later to lookup the AVFilter structure by name. A
+ * filter can still by instantiated with avfilter_graph_alloc_filter even if it
+ * is not registered.
+ *
+ * @param filter the filter to register
+ * @return 0 if the registration was successful, a negative value
+ * otherwise
+ */
+attribute_deprecated
+int avfilter_register(AVFilter *filter);
+
+/**
+ * Iterate over all registered filters.
+ * @return If prev is non-NULL, next registered filter after prev or NULL if
+ * prev is the last filter. If prev is NULL, return the first registered filter.
+ */
+attribute_deprecated
+const AVFilter *avfilter_next(const AVFilter *prev);
+#endif
+
+/**
+ * Get a filter definition matching the given name.
+ *
+ * @param name the filter name to find
+ * @return     the filter definition, if any matching one is registered.
+ *             NULL if none found.
+ */
+const AVFilter *avfilter_get_by_name(const char *name);
+
+
+/**
+ * Initialize a filter with the supplied parameters.
+ *
+ * @param ctx  uninitialized filter context to initialize
+ * @param args Options to initialize the filter with. This must be a
+ *             ':'-separated list of options in the 'key=value' form.
+ *             May be NULL if the options have been set directly using the
+ *             AVOptions API or there are no options that need to be set.
+ * @return 0 on success, a negative AVERROR on failure
+ */
+int avfilter_init_str(AVFilterContext *ctx, const char *args);
+
+/**
+ * Initialize a filter with the supplied dictionary of options.
+ *
+ * @param ctx     uninitialized filter context to initialize
+ * @param options An AVDictionary filled with options for this filter. On
+ *                return this parameter will be destroyed and replaced with
+ *                a dict containing options that were not found. This dictionary
+ *                must be freed by the caller.
+ *                May be NULL, then this function is equivalent to
+ *                avfilter_init_str() with the second parameter set to NULL.
+ * @return 0 on success, a negative AVERROR on failure
+ *
+ * @note This function and avfilter_init_str() do essentially the same thing,
+ * the difference is in manner in which the options are passed. It is up to the
+ * calling code to choose whichever is more preferable. The two functions also
+ * behave differently when some of the provided options are not declared as
+ * supported by the filter. In such a case, avfilter_init_str() will fail, but
+ * this function will leave those extra options in the options AVDictionary and
+ * continue as usual.
+ */
+int avfilter_init_dict(AVFilterContext *ctx, AVDictionary **options);
+
+/**
+ * Free a filter context. This will also remove the filter from its
+ * filtergraph's list of filters.
+ *
+ * @param filter the filter to free
+ */
+void avfilter_free(AVFilterContext *filter);
+
+/**
+ * Insert a filter in the middle of an existing link.
+ *
+ * @param link the link into which the filter should be inserted
+ * @param filt the filter to be inserted
+ * @param filt_srcpad_idx the input pad on the filter to connect
+ * @param filt_dstpad_idx the output pad on the filter to connect
+ * @return     zero on success
+ */
+int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
+                           unsigned filt_srcpad_idx, unsigned filt_dstpad_idx);
+
+/**
+ * @return AVClass for AVFilterContext.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avfilter_get_class(void);
+
+typedef struct AVFilterGraphInternal AVFilterGraphInternal;
+
+/**
+ * A function pointer passed to the @ref AVFilterGraph.execute callback to be
+ * executed multiple times, possibly in parallel.
+ *
+ * @param ctx the filter context the job belongs to
+ * @param arg an opaque parameter passed through from @ref
+ *            AVFilterGraph.execute
+ * @param jobnr the index of the job being executed
+ * @param nb_jobs the total number of jobs
+ *
+ * @return 0 on success, a negative AVERROR on error
+ */
+typedef int (avfilter_action_func)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
+
+/**
+ * A function executing multiple jobs, possibly in parallel.
+ *
+ * @param ctx the filter context to which the jobs belong
+ * @param func the function to be called multiple times
+ * @param arg the argument to be passed to func
+ * @param ret a nb_jobs-sized array to be filled with return values from each
+ *            invocation of func
+ * @param nb_jobs the number of jobs to execute
+ *
+ * @return 0 on success, a negative AVERROR on error
+ */
+typedef int (avfilter_execute_func)(AVFilterContext *ctx, avfilter_action_func *func,
+                                    void *arg, int *ret, int nb_jobs);
+
+typedef struct AVFilterGraph {
+    const AVClass *av_class;
+    AVFilterContext **filters;
+    unsigned nb_filters;
+
+    char *scale_sws_opts; ///< sws options to use for the auto-inserted scale filters
+#if FF_API_LAVR_OPTS
+    attribute_deprecated char *resample_lavr_opts;   ///< libavresample options to use for the auto-inserted resample filters
+#endif
+
+    /**
+     * Type of multithreading allowed for filters in this graph. A combination
+     * of AVFILTER_THREAD_* flags.
+     *
+     * May be set by the caller at any point, the setting will apply to all
+     * filters initialized after that. The default is allowing everything.
+     *
+     * When a filter in this graph is initialized, this field is combined using
+     * bit AND with AVFilterContext.thread_type to get the final mask used for
+     * determining allowed threading types. I.e. a threading type needs to be
+     * set in both to be allowed.
+     */
+    int thread_type;
+
+    /**
+     * Maximum number of threads used by filters in this graph. May be set by
+     * the caller before adding any filters to the filtergraph. Zero (the
+     * default) means that the number of threads is determined automatically.
+     */
+    int nb_threads;
+
+    /**
+     * Opaque object for libavfilter internal use.
+     */
+    AVFilterGraphInternal *internal;
+
+    /**
+     * Opaque user data. May be set by the caller to an arbitrary value, e.g. to
+     * be used from callbacks like @ref AVFilterGraph.execute.
+     * Libavfilter will not touch this field in any way.
+     */
+    void *opaque;
+
+    /**
+     * This callback may be set by the caller immediately after allocating the
+     * graph and before adding any filters to it, to provide a custom
+     * multithreading implementation.
+     *
+     * If set, filters with slice threading capability will call this callback
+     * to execute multiple jobs in parallel.
+     *
+     * If this field is left unset, libavfilter will use its internal
+     * implementation, which may or may not be multithreaded depending on the
+     * platform and build options.
+     */
+    avfilter_execute_func *execute;
+
+    char *aresample_swr_opts; ///< swr options to use for the auto-inserted aresample filters, Access ONLY through AVOptions
+
+    /**
+     * Private fields
+     *
+     * The following fields are for internal use only.
+     * Their type, offset, number and semantic can change without notice.
+     */
+
+    AVFilterLink **sink_links;
+    int sink_links_count;
+
+    unsigned disable_auto_convert;
+} AVFilterGraph;
+
+/**
+ * Allocate a filter graph.
+ *
+ * @return the allocated filter graph on success or NULL.
+ */
+AVFilterGraph *avfilter_graph_alloc(void);
+
+/**
+ * Create a new filter instance in a filter graph.
+ *
+ * @param graph graph in which the new filter will be used
+ * @param filter the filter to create an instance of
+ * @param name Name to give to the new instance (will be copied to
+ *             AVFilterContext.name). This may be used by the caller to identify
+ *             different filters, libavfilter itself assigns no semantics to
+ *             this parameter. May be NULL.
+ *
+ * @return the context of the newly created filter instance (note that it is
+ *         also retrievable directly through AVFilterGraph.filters or with
+ *         avfilter_graph_get_filter()) on success or NULL on failure.
+ */
+AVFilterContext *avfilter_graph_alloc_filter(AVFilterGraph *graph,
+                                             const AVFilter *filter,
+                                             const char *name);
+
+/**
+ * Get a filter instance identified by instance name from graph.
+ *
+ * @param graph filter graph to search through.
+ * @param name filter instance name (should be unique in the graph).
+ * @return the pointer to the found filter instance or NULL if it
+ * cannot be found.
+ */
+AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, const char *name);
+
+/**
+ * Create and add a filter instance into an existing graph.
+ * The filter instance is created from the filter filt and inited
+ * with the parameters args and opaque.
+ *
+ * In case of success put in *filt_ctx the pointer to the created
+ * filter instance, otherwise set *filt_ctx to NULL.
+ *
+ * @param name the instance name to give to the created filter instance
+ * @param graph_ctx the filter graph
+ * @return a negative AVERROR error code in case of failure, a non
+ * negative value otherwise
+ */
+int avfilter_graph_create_filter(AVFilterContext **filt_ctx, const AVFilter *filt,
+                                 const char *name, const char *args, void *opaque,
+                                 AVFilterGraph *graph_ctx);
+
+/**
+ * Enable or disable automatic format conversion inside the graph.
+ *
+ * Note that format conversion can still happen inside explicitly inserted
+ * scale and aresample filters.
+ *
+ * @param flags  any of the AVFILTER_AUTO_CONVERT_* constants
+ */
+void avfilter_graph_set_auto_convert(AVFilterGraph *graph, unsigned flags);
+
+enum {
+    AVFILTER_AUTO_CONVERT_ALL  =  0, /**< all automatic conversions enabled */
+    AVFILTER_AUTO_CONVERT_NONE = -1, /**< all automatic conversions disabled */
+};
+
+/**
+ * Check validity and configure all the links and formats in the graph.
+ *
+ * @param graphctx the filter graph
+ * @param log_ctx context used for logging
+ * @return >= 0 in case of success, a negative AVERROR code otherwise
+ */
+int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx);
+
+/**
+ * Free a graph, destroy its links, and set *graph to NULL.
+ * If *graph is NULL, do nothing.
+ */
+void avfilter_graph_free(AVFilterGraph **graph);
+
+/**
+ * A linked-list of the inputs/outputs of the filter chain.
+ *
+ * This is mainly useful for avfilter_graph_parse() / avfilter_graph_parse2(),
+ * where it is used to communicate open (unlinked) inputs and outputs from and
+ * to the caller.
+ * This struct specifies, per each not connected pad contained in the graph, the
+ * filter context and the pad index required for establishing a link.
+ */
+typedef struct AVFilterInOut {
+    /** unique name for this input/output in the list */
+    char *name;
+
+    /** filter context associated to this input/output */
+    AVFilterContext *filter_ctx;
+
+    /** index of the filt_ctx pad to use for linking */
+    int pad_idx;
+
+    /** next input/input in the list, NULL if this is the last */
+    struct AVFilterInOut *next;
+} AVFilterInOut;
+
+/**
+ * Allocate a single AVFilterInOut entry.
+ * Must be freed with avfilter_inout_free().
+ * @return allocated AVFilterInOut on success, NULL on failure.
+ */
+AVFilterInOut *avfilter_inout_alloc(void);
+
+/**
+ * Free the supplied list of AVFilterInOut and set *inout to NULL.
+ * If *inout is NULL, do nothing.
+ */
+void avfilter_inout_free(AVFilterInOut **inout);
+
+/**
+ * Add a graph described by a string to a graph.
+ *
+ * @note The caller must provide the lists of inputs and outputs,
+ * which therefore must be known before calling the function.
+ *
+ * @note The inputs parameter describes inputs of the already existing
+ * part of the graph; i.e. from the point of view of the newly created
+ * part, they are outputs. Similarly the outputs parameter describes
+ * outputs of the already existing filters, which are provided as
+ * inputs to the parsed filters.
+ *
+ * @param graph   the filter graph where to link the parsed graph context
+ * @param filters string to be parsed
+ * @param inputs  linked list to the inputs of the graph
+ * @param outputs linked list to the outputs of the graph
+ * @return zero on success, a negative AVERROR code on error
+ */
+int avfilter_graph_parse(AVFilterGraph *graph, const char *filters,
+                         AVFilterInOut *inputs, AVFilterInOut *outputs,
+                         void *log_ctx);
+
+/**
+ * Add a graph described by a string to a graph.
+ *
+ * In the graph filters description, if the input label of the first
+ * filter is not specified, "in" is assumed; if the output label of
+ * the last filter is not specified, "out" is assumed.
+ *
+ * @param graph   the filter graph where to link the parsed graph context
+ * @param filters string to be parsed
+ * @param inputs  pointer to a linked list to the inputs of the graph, may be NULL.
+ *                If non-NULL, *inputs is updated to contain the list of open inputs
+ *                after the parsing, should be freed with avfilter_inout_free().
+ * @param outputs pointer to a linked list to the outputs of the graph, may be NULL.
+ *                If non-NULL, *outputs is updated to contain the list of open outputs
+ *                after the parsing, should be freed with avfilter_inout_free().
+ * @return non negative on success, a negative AVERROR code on error
+ */
+int avfilter_graph_parse_ptr(AVFilterGraph *graph, const char *filters,
+                             AVFilterInOut **inputs, AVFilterInOut **outputs,
+                             void *log_ctx);
+
+/**
+ * Add a graph described by a string to a graph.
+ *
+ * @param[in]  graph   the filter graph where to link the parsed graph context
+ * @param[in]  filters string to be parsed
+ * @param[out] inputs  a linked list of all free (unlinked) inputs of the
+ *                     parsed graph will be returned here. It is to be freed
+ *                     by the caller using avfilter_inout_free().
+ * @param[out] outputs a linked list of all free (unlinked) outputs of the
+ *                     parsed graph will be returned here. It is to be freed by the
+ *                     caller using avfilter_inout_free().
+ * @return zero on success, a negative AVERROR code on error
+ *
+ * @note This function returns the inputs and outputs that are left
+ * unlinked after parsing the graph and the caller then deals with
+ * them.
+ * @note This function makes no reference whatsoever to already
+ * existing parts of the graph and the inputs parameter will on return
+ * contain inputs of the newly parsed part of the graph.  Analogously
+ * the outputs parameter will contain outputs of the newly created
+ * filters.
+ */
+int avfilter_graph_parse2(AVFilterGraph *graph, const char *filters,
+                          AVFilterInOut **inputs,
+                          AVFilterInOut **outputs);
+
+/**
+ * Send a command to one or more filter instances.
+ *
+ * @param graph  the filter graph
+ * @param target the filter(s) to which the command should be sent
+ *               "all" sends to all filters
+ *               otherwise it can be a filter or filter instance name
+ *               which will send the command to all matching filters.
+ * @param cmd    the command to send, for handling simplicity all commands must be alphanumeric only
+ * @param arg    the argument for the command
+ * @param res    a buffer with size res_size where the filter(s) can return a response.
+ *
+ * @returns >=0 on success otherwise an error code.
+ *              AVERROR(ENOSYS) on unsupported commands
+ */
+int avfilter_graph_send_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, char *res, int res_len, int flags);
+
+/**
+ * Queue a command for one or more filter instances.
+ *
+ * @param graph  the filter graph
+ * @param target the filter(s) to which the command should be sent
+ *               "all" sends to all filters
+ *               otherwise it can be a filter or filter instance name
+ *               which will send the command to all matching filters.
+ * @param cmd    the command to sent, for handling simplicity all commands must be alphanumeric only
+ * @param arg    the argument for the command
+ * @param ts     time at which the command should be sent to the filter
+ *
+ * @note As this executes commands after this function returns, no return code
+ *       from the filter is provided, also AVFILTER_CMD_FLAG_ONE is not supported.
+ */
+int avfilter_graph_queue_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, int flags, double ts);
+
+
+/**
+ * Dump a graph into a human-readable string representation.
+ *
+ * @param graph    the graph to dump
+ * @param options  formatting options; currently ignored
+ * @return  a string, or NULL in case of memory allocation failure;
+ *          the string must be freed using av_free
+ */
+char *avfilter_graph_dump(AVFilterGraph *graph, const char *options);
+
+/**
+ * Request a frame on the oldest sink link.
+ *
+ * If the request returns AVERROR_EOF, try the next.
+ *
+ * Note that this function is not meant to be the sole scheduling mechanism
+ * of a filtergraph, only a convenience function to help drain a filtergraph
+ * in a balanced way under normal circumstances.
+ *
+ * Also note that AVERROR_EOF does not mean that frames did not arrive on
+ * some of the sinks during the process.
+ * When there are multiple sink links, in case the requested link
+ * returns an EOF, this may cause a filter to flush pending frames
+ * which are sent to another sink link, although unrequested.
+ *
+ * @return  the return value of ff_request_frame(),
+ *          or AVERROR_EOF if all links returned AVERROR_EOF
+ */
+int avfilter_graph_request_oldest(AVFilterGraph *graph);
+
+/**
+ * @}
+ */
+
+#endif /* AVFILTER_AVFILTER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/bufferqueue.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/bufferqueue.h
new file mode 100644
index 000000000..f5e5df2d7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/bufferqueue.h
@@ -0,0 +1,121 @@
+/*
+ * Generic buffer queue
+ * Copyright (c) 2012 Nicolas George
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_BUFFERQUEUE_H
+#define AVFILTER_BUFFERQUEUE_H
+
+/**
+ * FFBufQueue: simple AVFrame queue API
+ *
+ * Note: this API is not thread-safe. Concurrent access to the same queue
+ * must be protected by a mutex or any synchronization mechanism.
+ */
+
+/**
+ * Maximum size of the queue.
+ *
+ * This value can be overridden by definying it before including this
+ * header.
+ * Powers of 2 are recommended.
+ */
+#ifndef FF_BUFQUEUE_SIZE
+#define FF_BUFQUEUE_SIZE 64
+#endif
+
+#include "avfilter.h"
+#include "libavutil/avassert.h"
+
+/**
+ * Structure holding the queue
+ */
+struct FFBufQueue {
+    AVFrame *queue[FF_BUFQUEUE_SIZE];
+    unsigned short head;
+    unsigned short available; /**< number of available buffers */
+};
+
+#define BUCKET(i) queue->queue[(queue->head + (i)) % FF_BUFQUEUE_SIZE]
+
+/**
+ * Test if a buffer queue is full.
+ */
+static inline int ff_bufqueue_is_full(struct FFBufQueue *queue)
+{
+    return queue->available == FF_BUFQUEUE_SIZE;
+}
+
+/**
+ * Add a buffer to the queue.
+ *
+ * If the queue is already full, then the current last buffer is dropped
+ * (and unrefed) with a warning before adding the new buffer.
+ */
+static inline void ff_bufqueue_add(void *log, struct FFBufQueue *queue,
+                                   AVFrame *buf)
+{
+    if (ff_bufqueue_is_full(queue)) {
+        av_log(log, AV_LOG_WARNING, "Buffer queue overflow, dropping.\n");
+        av_frame_free(&BUCKET(--queue->available));
+    }
+    BUCKET(queue->available++) = buf;
+}
+
+/**
+ * Get a buffer from the queue without altering it.
+ *
+ * Buffer with index 0 is the first buffer in the queue.
+ * Return NULL if the queue has not enough buffers.
+ */
+static inline AVFrame *ff_bufqueue_peek(struct FFBufQueue *queue,
+                                        unsigned index)
+{
+    return index < queue->available ? BUCKET(index) : NULL;
+}
+
+/**
+ * Get the first buffer from the queue and remove it.
+ *
+ * Do not use on an empty queue.
+ */
+static inline AVFrame *ff_bufqueue_get(struct FFBufQueue *queue)
+{
+    AVFrame *ret = queue->queue[queue->head];
+    av_assert0(queue->available);
+    queue->available--;
+    queue->queue[queue->head] = NULL;
+    queue->head = (queue->head + 1) % FF_BUFQUEUE_SIZE;
+    return ret;
+}
+
+/**
+ * Unref and remove all buffers from the queue.
+ */
+static inline void ff_bufqueue_discard_all(struct FFBufQueue *queue)
+{
+    while (queue->available) {
+        AVFrame *buf = ff_bufqueue_get(queue);
+        av_frame_free(&buf);
+    }
+}
+
+#undef BUCKET
+
+#endif /* AVFILTER_BUFFERQUEUE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/filter_list.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/filter_list.c
new file mode 100644
index 000000000..9a55cb886
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/filter_list.c
@@ -0,0 +1,6 @@
+static const AVFilter * const filter_list[] = {
+    &ff_asrc_abuffer,
+    &ff_vsrc_buffer,
+    &ff_asink_abuffer,
+    &ff_vsink_buffer,
+    NULL };
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/version.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/version.h
new file mode 100644
index 000000000..cc5b23b70
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/version.h
@@ -0,0 +1,66 @@
+/*
+ * Version macros.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_VERSION_H
+#define AVFILTER_VERSION_H
+
+/**
+ * @file
+ * @ingroup lavfi
+ * Libavfilter version macros
+ */
+
+#include "libavutil/version.h"
+
+#define LIBAVFILTER_VERSION_MAJOR   7
+#define LIBAVFILTER_VERSION_MINOR  57
+#define LIBAVFILTER_VERSION_MICRO 100
+
+
+#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
+                                               LIBAVFILTER_VERSION_MINOR, \
+                                               LIBAVFILTER_VERSION_MICRO)
+#define LIBAVFILTER_VERSION     AV_VERSION(LIBAVFILTER_VERSION_MAJOR,   \
+                                           LIBAVFILTER_VERSION_MINOR,   \
+                                           LIBAVFILTER_VERSION_MICRO)
+#define LIBAVFILTER_BUILD       LIBAVFILTER_VERSION_INT
+
+#define LIBAVFILTER_IDENT       "Lavfi" AV_STRINGIFY(LIBAVFILTER_VERSION)
+
+/**
+ * FF_API_* defines may be placed below to indicate public API that will be
+ * dropped at a future version bump. The defines themselves are not part of
+ * the public API and may change, break or disappear at any time.
+ */
+
+#ifndef FF_API_OLD_FILTER_OPTS_ERROR
+#define FF_API_OLD_FILTER_OPTS_ERROR        (LIBAVFILTER_VERSION_MAJOR < 8)
+#endif
+#ifndef FF_API_LAVR_OPTS
+#define FF_API_LAVR_OPTS                    (LIBAVFILTER_VERSION_MAJOR < 8)
+#endif
+#ifndef FF_API_FILTER_GET_SET
+#define FF_API_FILTER_GET_SET               (LIBAVFILTER_VERSION_MAJOR < 8)
+#endif
+#ifndef FF_API_NEXT
+#define FF_API_NEXT                         (LIBAVFILTER_VERSION_MAJOR < 8)
+#endif
+
+#endif /* AVFILTER_VERSION_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/window_func.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/window_func.h
new file mode 100644
index 000000000..1de8f1fbd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavfilter/window_func.h
@@ -0,0 +1,199 @@
+/*
+ * Copyright (c) 2015 Paul B Mahol
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+#ifndef AVFILTER_WINDOW_FUNC_H
+#define AVFILTER_WINDOW_FUNC_H
+
+#include <math.h>
+#include "libavutil/avassert.h"
+
+enum WindowFunc     { WFUNC_RECT, WFUNC_HANNING, WFUNC_HAMMING, WFUNC_BLACKMAN,
+                      WFUNC_BARTLETT, WFUNC_WELCH, WFUNC_FLATTOP,
+                      WFUNC_BHARRIS, WFUNC_BNUTTALL, WFUNC_SINE, WFUNC_NUTTALL,
+                      WFUNC_BHANN, WFUNC_LANCZOS, WFUNC_GAUSS, WFUNC_TUKEY,
+                      WFUNC_DOLPH, WFUNC_CAUCHY, WFUNC_PARZEN, WFUNC_POISSON,
+                      WFUNC_BOHMAN,
+                      NB_WFUNC };
+
+static inline void generate_window_func(float *lut, int N, int win_func,
+                                        float *overlap)
+{
+    int n;
+
+    switch (win_func) {
+    case WFUNC_RECT:
+        for (n = 0; n < N; n++)
+            lut[n] = 1.;
+        *overlap = 0.;
+        break;
+    case WFUNC_BARTLETT:
+        for (n = 0; n < N; n++)
+            lut[n] = 1.-fabs((n-(N-1)/2.)/((N-1)/2.));
+        *overlap = 0.5;
+        break;
+    case WFUNC_HANNING:
+        for (n = 0; n < N; n++)
+            lut[n] = .5*(1-cos(2*M_PI*n/(N-1)));
+        *overlap = 0.5;
+        break;
+    case WFUNC_HAMMING:
+        for (n = 0; n < N; n++)
+            lut[n] = .54-.46*cos(2*M_PI*n/(N-1));
+        *overlap = 0.5;
+        break;
+    case WFUNC_BLACKMAN:
+        for (n = 0; n < N; n++)
+            lut[n] = .42659-.49656*cos(2*M_PI*n/(N-1))+.076849*cos(4*M_PI*n/(N-1));
+        *overlap = 0.661;
+        break;
+    case WFUNC_WELCH:
+        for (n = 0; n < N; n++)
+            lut[n] = 1.-(n-(N-1)/2.)/((N-1)/2.)*(n-(N-1)/2.)/((N-1)/2.);
+        *overlap = 0.293;
+        break;
+    case WFUNC_FLATTOP:
+        for (n = 0; n < N; n++)
+            lut[n] = 1.-1.985844164102*cos( 2*M_PI*n/(N-1))+1.791176438506*cos( 4*M_PI*n/(N-1))-
+            1.282075284005*cos( 6*M_PI*n/(N-1))+0.667777530266*cos( 8*M_PI*n/(N-1))-
+            0.240160796576*cos(10*M_PI*n/(N-1))+0.056656381764*cos(12*M_PI*n/(N-1))-
+            0.008134974479*cos(14*M_PI*n/(N-1))+0.000624544650*cos(16*M_PI*n/(N-1))-
+            0.000019808998*cos(18*M_PI*n/(N-1))+0.000000132974*cos(20*M_PI*n/(N-1));
+        *overlap = 0.841;
+        break;
+    case WFUNC_BHARRIS:
+        for (n = 0; n < N; n++)
+            lut[n] = 0.35875-0.48829*cos(2*M_PI*n/(N-1))+0.14128*cos(4*M_PI*n/(N-1))-0.01168*cos(6*M_PI*n/(N-1));
+        *overlap = 0.661;
+        break;
+    case WFUNC_BNUTTALL:
+        for (n = 0; n < N; n++)
+            lut[n] = 0.3635819-0.4891775*cos(2*M_PI*n/(N-1))+0.1365995*cos(4*M_PI*n/(N-1))-0.0106411*cos(6*M_PI*n/(N-1));
+        *overlap = 0.661;
+        break;
+    case WFUNC_BHANN:
+        for (n = 0; n < N; n++)
+            lut[n] = 0.62-0.48*fabs(n/(double)(N-1)-.5)-0.38*cos(2*M_PI*n/(N-1));
+        *overlap = 0.5;
+        break;
+    case WFUNC_SINE:
+        for (n = 0; n < N; n++)
+            lut[n] = sin(M_PI*n/(N-1));
+        *overlap = 0.75;
+        break;
+    case WFUNC_NUTTALL:
+        for (n = 0; n < N; n++)
+            lut[n] = 0.355768-0.487396*cos(2*M_PI*n/(N-1))+0.144232*cos(4*M_PI*n/(N-1))-0.012604*cos(6*M_PI*n/(N-1));
+        *overlap = 0.663;
+        break;
+    case WFUNC_LANCZOS:
+        #define SINC(x) (!(x)) ? 1 : sin(M_PI * (x))/(M_PI * (x));
+        for (n = 0; n < N; n++)
+            lut[n] = SINC((2.*n)/(N-1)-1);
+        *overlap = 0.75;
+        break;
+    case WFUNC_GAUSS:
+        #define SQR(x) ((x)*(x))
+        for (n = 0; n < N; n++)
+            lut[n] = exp(-0.5 * SQR((n-(N-1)/2)/(0.4*(N-1)/2.f)));
+        *overlap = 0.75;
+        break;
+    case WFUNC_TUKEY:
+        for (n = 0; n < N; n++) {
+            float M = (N-1)/2.;
+
+            if (FFABS(n - M) >= 0.3 * M) {
+                lut[n] = 0.5 * (1 + cos((M_PI*(FFABS(n - M) - 0.3 * M))/((1 - 0.3) * M)));
+            } else {
+                lut[n] = 1;
+            }
+        }
+        *overlap = 0.33;
+        break;
+    case WFUNC_DOLPH: {
+        double b = cosh(7.6009022095419887 / (N-1)), sum, t, c, norm = 0;
+        int j;
+        for (c = 1 - 1 / (b*b), n = (N-1) / 2; n >= 0; --n) {
+            for (sum = !n, b = t = j = 1; j <= n && sum != t; b *= (n-j) * (1./j), ++j)
+                t = sum, sum += (b *= c * (N - n - j) * (1./j));
+            sum /= (N - 1 - n), sum /= (norm = norm ? norm : sum);
+            lut[n] = sum;
+            lut[N - 1 - n] = sum;
+        }
+        *overlap = 0.5;}
+        break;
+    case WFUNC_CAUCHY:
+        for (n = 0; n < N; n++) {
+            double x = 2 * ((n / (double)(N - 1)) - .5);
+
+            if (x <= -.5 || x >= .5) {
+                lut[n] = 0;
+            } else {
+                lut[n] = FFMIN(1, fabs(1/(1+4*16*x*x)));
+            }
+        }
+        *overlap = 0.75;
+        break;
+    case WFUNC_PARZEN:
+        for (n = 0; n < N; n++) {
+            double x = 2 * ((n / (double)(N - 1)) - .5);
+
+            if (x > 0.25 && x <= 0.5) {
+                lut[n] = -2 * powf(-1 + 2 * x, 3);
+            } else if (x >= -.5 && x < -.25) {
+                lut[n] = 2 * powf(1 + 2 * x, 3);
+            } else if (x >= -.25 && x < 0) {
+                lut[n] = 1 - 24 * x * x - 48 * x * x * x;
+            } else if (x >= 0 && x <= .25) {
+                lut[n] = 1 - 24 * x * x + 48 * x * x * x;
+            } else {
+                lut[n] = 0;
+            }
+        }
+        *overlap = 0.75;
+        break;
+    case WFUNC_POISSON:
+        for (n = 0; n < N; n++) {
+            double x = 2 * ((n / (double)(N - 1)) - .5);
+
+            if (x >= 0 && x <= .5) {
+                lut[n] = exp(-6*x);
+            } else if (x < 0 && x >= -.5) {
+                lut[n] = exp(6*x);
+            } else {
+                lut[n] = 0;
+            }
+        }
+        *overlap = 0.75;
+        break;
+    case WFUNC_BOHMAN:
+        for (n = 0; n < N; n++) {
+            double x = 2 * ((n / (double)(N - 1))) - 1.;
+
+            lut[n] = (1 - fabs(x)) * cos(M_PI*fabs(x)) + 1./M_PI*sin(M_PI*fabs(x));
+        }
+        *overlap = 0.75;
+        break;
+    default:
+        av_assert0(0);
+    }
+}
+
+#endif /* AVFILTER_WINDOW_FUNC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/allformats.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/allformats.c
new file mode 100644
index 000000000..cd0083480
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/allformats.c
@@ -0,0 +1,641 @@
+/*
+ * Register all the formats and protocols
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/thread.h"
+#include "libavformat/internal.h"
+#include "avformat.h"
+#include "rtp.h"
+#include "rdt.h"
+#include "url.h"
+#include "version.h"
+
+/* (de)muxers */
+extern AVOutputFormat ff_a64_muxer;
+extern AVInputFormat  ff_aa_demuxer;
+extern AVInputFormat  ff_aac_demuxer;
+extern AVInputFormat  ff_ac3_demuxer;
+extern AVOutputFormat ff_ac3_muxer;
+extern AVInputFormat  ff_acm_demuxer;
+extern AVInputFormat  ff_act_demuxer;
+extern AVInputFormat  ff_adf_demuxer;
+extern AVInputFormat  ff_adp_demuxer;
+extern AVInputFormat  ff_ads_demuxer;
+extern AVOutputFormat ff_adts_muxer;
+extern AVInputFormat  ff_adx_demuxer;
+extern AVOutputFormat ff_adx_muxer;
+extern AVInputFormat  ff_aea_demuxer;
+extern AVInputFormat  ff_afc_demuxer;
+extern AVInputFormat  ff_aiff_demuxer;
+extern AVOutputFormat ff_aiff_muxer;
+extern AVInputFormat  ff_aix_demuxer;
+extern AVInputFormat  ff_amr_demuxer;
+extern AVOutputFormat ff_amr_muxer;
+extern AVInputFormat  ff_amrnb_demuxer;
+extern AVInputFormat  ff_amrwb_demuxer;
+extern AVInputFormat  ff_anm_demuxer;
+extern AVInputFormat  ff_apc_demuxer;
+extern AVInputFormat  ff_ape_demuxer;
+extern AVInputFormat  ff_apng_demuxer;
+extern AVOutputFormat ff_apng_muxer;
+extern AVInputFormat  ff_aptx_demuxer;
+extern AVOutputFormat ff_aptx_muxer;
+extern AVInputFormat  ff_aptx_hd_demuxer;
+extern AVOutputFormat ff_aptx_hd_muxer;
+extern AVInputFormat  ff_aqtitle_demuxer;
+extern AVInputFormat  ff_asf_demuxer;
+extern AVOutputFormat ff_asf_muxer;
+extern AVInputFormat  ff_asf_o_demuxer;
+extern AVInputFormat  ff_ass_demuxer;
+extern AVOutputFormat ff_ass_muxer;
+extern AVInputFormat  ff_ast_demuxer;
+extern AVOutputFormat ff_ast_muxer;
+extern AVOutputFormat ff_asf_stream_muxer;
+extern AVInputFormat  ff_au_demuxer;
+extern AVOutputFormat ff_au_muxer;
+extern AVInputFormat  ff_avi_demuxer;
+extern AVOutputFormat ff_avi_muxer;
+extern AVInputFormat  ff_avisynth_demuxer;
+extern AVOutputFormat ff_avm2_muxer;
+extern AVInputFormat  ff_avr_demuxer;
+extern AVInputFormat  ff_avs_demuxer;
+extern AVInputFormat  ff_avs2_demuxer;
+extern AVOutputFormat ff_avs2_muxer;
+extern AVInputFormat  ff_bethsoftvid_demuxer;
+extern AVInputFormat  ff_bfi_demuxer;
+extern AVInputFormat  ff_bintext_demuxer;
+extern AVInputFormat  ff_bink_demuxer;
+extern AVInputFormat  ff_bit_demuxer;
+extern AVOutputFormat ff_bit_muxer;
+extern AVInputFormat  ff_bmv_demuxer;
+extern AVInputFormat  ff_bfstm_demuxer;
+extern AVInputFormat  ff_brstm_demuxer;
+extern AVInputFormat  ff_boa_demuxer;
+extern AVInputFormat  ff_c93_demuxer;
+extern AVInputFormat  ff_caf_demuxer;
+extern AVOutputFormat ff_caf_muxer;
+extern AVInputFormat  ff_cavsvideo_demuxer;
+extern AVOutputFormat ff_cavsvideo_muxer;
+extern AVInputFormat  ff_cdg_demuxer;
+extern AVInputFormat  ff_cdxl_demuxer;
+extern AVInputFormat  ff_cine_demuxer;
+extern AVInputFormat  ff_codec2_demuxer;
+extern AVOutputFormat ff_codec2_muxer;
+extern AVInputFormat  ff_codec2raw_demuxer;
+extern AVOutputFormat ff_codec2raw_muxer;
+extern AVInputFormat  ff_concat_demuxer;
+extern AVOutputFormat ff_crc_muxer;
+extern AVInputFormat  ff_dash_demuxer;
+extern AVOutputFormat ff_dash_muxer;
+extern AVInputFormat  ff_data_demuxer;
+extern AVOutputFormat ff_data_muxer;
+extern AVInputFormat  ff_daud_demuxer;
+extern AVOutputFormat ff_daud_muxer;
+extern AVInputFormat  ff_dcstr_demuxer;
+extern AVInputFormat  ff_dfa_demuxer;
+extern AVInputFormat  ff_dhav_demuxer;
+extern AVInputFormat  ff_dirac_demuxer;
+extern AVOutputFormat ff_dirac_muxer;
+extern AVInputFormat  ff_dnxhd_demuxer;
+extern AVOutputFormat ff_dnxhd_muxer;
+extern AVInputFormat  ff_dsf_demuxer;
+extern AVInputFormat  ff_dsicin_demuxer;
+extern AVInputFormat  ff_dss_demuxer;
+extern AVInputFormat  ff_dts_demuxer;
+extern AVOutputFormat ff_dts_muxer;
+extern AVInputFormat  ff_dtshd_demuxer;
+extern AVInputFormat  ff_dv_demuxer;
+extern AVOutputFormat ff_dv_muxer;
+extern AVInputFormat  ff_dvbsub_demuxer;
+extern AVInputFormat  ff_dvbtxt_demuxer;
+extern AVInputFormat  ff_dxa_demuxer;
+extern AVInputFormat  ff_ea_demuxer;
+extern AVInputFormat  ff_ea_cdata_demuxer;
+extern AVInputFormat  ff_eac3_demuxer;
+extern AVOutputFormat ff_eac3_muxer;
+extern AVInputFormat  ff_epaf_demuxer;
+extern AVOutputFormat ff_f4v_muxer;
+extern AVInputFormat  ff_ffmetadata_demuxer;
+extern AVOutputFormat ff_ffmetadata_muxer;
+extern AVOutputFormat ff_fifo_muxer;
+extern AVOutputFormat ff_fifo_test_muxer;
+extern AVInputFormat  ff_filmstrip_demuxer;
+extern AVOutputFormat ff_filmstrip_muxer;
+extern AVInputFormat  ff_fits_demuxer;
+extern AVOutputFormat ff_fits_muxer;
+extern AVInputFormat  ff_flac_demuxer;
+extern AVOutputFormat ff_flac_muxer;
+extern AVInputFormat  ff_flic_demuxer;
+extern AVInputFormat  ff_flv_demuxer;
+extern AVOutputFormat ff_flv_muxer;
+extern AVInputFormat  ff_live_flv_demuxer;
+extern AVInputFormat  ff_fourxm_demuxer;
+extern AVOutputFormat ff_framecrc_muxer;
+extern AVOutputFormat ff_framehash_muxer;
+extern AVOutputFormat ff_framemd5_muxer;
+extern AVInputFormat  ff_frm_demuxer;
+extern AVInputFormat  ff_fsb_demuxer;
+extern AVInputFormat  ff_g722_demuxer;
+extern AVOutputFormat ff_g722_muxer;
+extern AVInputFormat  ff_g723_1_demuxer;
+extern AVOutputFormat ff_g723_1_muxer;
+extern AVInputFormat  ff_g726_demuxer;
+extern AVOutputFormat ff_g726_muxer;
+extern AVInputFormat  ff_g726le_demuxer;
+extern AVOutputFormat ff_g726le_muxer;
+extern AVInputFormat  ff_g729_demuxer;
+extern AVInputFormat  ff_gdv_demuxer;
+extern AVInputFormat  ff_genh_demuxer;
+extern AVInputFormat  ff_gif_demuxer;
+extern AVOutputFormat ff_gif_muxer;
+extern AVInputFormat  ff_gsm_demuxer;
+extern AVOutputFormat ff_gsm_muxer;
+extern AVInputFormat  ff_gxf_demuxer;
+extern AVOutputFormat ff_gxf_muxer;
+extern AVInputFormat  ff_h261_demuxer;
+extern AVOutputFormat ff_h261_muxer;
+extern AVInputFormat  ff_h263_demuxer;
+extern AVOutputFormat ff_h263_muxer;
+extern AVInputFormat  ff_h264_demuxer;
+extern AVOutputFormat ff_h264_muxer;
+extern AVOutputFormat ff_hash_muxer;
+extern AVInputFormat  ff_hcom_demuxer;
+extern AVOutputFormat ff_hds_muxer;
+extern AVInputFormat  ff_hevc_demuxer;
+extern AVOutputFormat ff_hevc_muxer;
+extern AVInputFormat  ff_hls_demuxer;
+extern AVOutputFormat ff_hls_muxer;
+extern AVInputFormat  ff_hnm_demuxer;
+extern AVInputFormat  ff_ico_demuxer;
+extern AVOutputFormat ff_ico_muxer;
+extern AVInputFormat  ff_idcin_demuxer;
+extern AVInputFormat  ff_idf_demuxer;
+extern AVInputFormat  ff_iff_demuxer;
+extern AVInputFormat  ff_ifv_demuxer;
+extern AVInputFormat  ff_ilbc_demuxer;
+extern AVOutputFormat ff_ilbc_muxer;
+extern AVInputFormat  ff_image2_demuxer;
+extern AVOutputFormat ff_image2_muxer;
+extern AVInputFormat  ff_image2pipe_demuxer;
+extern AVOutputFormat ff_image2pipe_muxer;
+extern AVInputFormat  ff_image2_alias_pix_demuxer;
+extern AVInputFormat  ff_image2_brender_pix_demuxer;
+extern AVInputFormat  ff_ingenient_demuxer;
+extern AVInputFormat  ff_ipmovie_demuxer;
+extern AVOutputFormat ff_ipod_muxer;
+extern AVInputFormat  ff_ircam_demuxer;
+extern AVOutputFormat ff_ircam_muxer;
+extern AVOutputFormat ff_ismv_muxer;
+extern AVInputFormat  ff_iss_demuxer;
+extern AVInputFormat  ff_iv8_demuxer;
+extern AVInputFormat  ff_ivf_demuxer;
+extern AVOutputFormat ff_ivf_muxer;
+extern AVInputFormat  ff_ivr_demuxer;
+extern AVInputFormat  ff_jacosub_demuxer;
+extern AVOutputFormat ff_jacosub_muxer;
+extern AVInputFormat  ff_jv_demuxer;
+extern AVInputFormat  ff_kux_demuxer;
+extern AVOutputFormat ff_latm_muxer;
+extern AVInputFormat  ff_lmlm4_demuxer;
+extern AVInputFormat  ff_loas_demuxer;
+extern AVInputFormat  ff_lrc_demuxer;
+extern AVOutputFormat ff_lrc_muxer;
+extern AVInputFormat  ff_lvf_demuxer;
+extern AVInputFormat  ff_lxf_demuxer;
+extern AVInputFormat  ff_m4v_demuxer;
+extern AVOutputFormat ff_m4v_muxer;
+extern AVOutputFormat ff_md5_muxer;
+extern AVInputFormat  ff_matroska_demuxer;
+extern AVOutputFormat ff_matroska_muxer;
+extern AVOutputFormat ff_matroska_audio_muxer;
+extern AVInputFormat  ff_mgsts_demuxer;
+extern AVInputFormat  ff_microdvd_demuxer;
+extern AVOutputFormat ff_microdvd_muxer;
+extern AVInputFormat  ff_mjpeg_demuxer;
+extern AVOutputFormat ff_mjpeg_muxer;
+extern AVInputFormat  ff_mjpeg_2000_demuxer;
+extern AVInputFormat  ff_mlp_demuxer;
+extern AVOutputFormat ff_mlp_muxer;
+extern AVInputFormat  ff_mlv_demuxer;
+extern AVInputFormat  ff_mm_demuxer;
+extern AVInputFormat  ff_mmf_demuxer;
+extern AVOutputFormat ff_mmf_muxer;
+extern AVInputFormat  ff_mov_demuxer;
+extern AVOutputFormat ff_mov_muxer;
+extern AVOutputFormat ff_mp2_muxer;
+extern AVInputFormat  ff_mp3_demuxer;
+extern AVOutputFormat ff_mp3_muxer;
+extern AVOutputFormat ff_mp4_muxer;
+extern AVInputFormat  ff_mpc_demuxer;
+extern AVInputFormat  ff_mpc8_demuxer;
+extern AVOutputFormat ff_mpeg1system_muxer;
+extern AVOutputFormat ff_mpeg1vcd_muxer;
+extern AVOutputFormat ff_mpeg1video_muxer;
+extern AVOutputFormat ff_mpeg2dvd_muxer;
+extern AVOutputFormat ff_mpeg2svcd_muxer;
+extern AVOutputFormat ff_mpeg2video_muxer;
+extern AVOutputFormat ff_mpeg2vob_muxer;
+extern AVInputFormat  ff_mpegps_demuxer;
+extern AVInputFormat  ff_mpegts_demuxer;
+extern AVOutputFormat ff_mpegts_muxer;
+extern AVInputFormat  ff_mpegtsraw_demuxer;
+extern AVInputFormat  ff_mpegvideo_demuxer;
+extern AVInputFormat  ff_mpjpeg_demuxer;
+extern AVOutputFormat ff_mpjpeg_muxer;
+extern AVInputFormat  ff_mpl2_demuxer;
+extern AVInputFormat  ff_mpsub_demuxer;
+extern AVInputFormat  ff_msf_demuxer;
+extern AVInputFormat  ff_msnwc_tcp_demuxer;
+extern AVInputFormat  ff_mtaf_demuxer;
+extern AVInputFormat  ff_mtv_demuxer;
+extern AVInputFormat  ff_musx_demuxer;
+extern AVInputFormat  ff_mv_demuxer;
+extern AVInputFormat  ff_mvi_demuxer;
+extern AVInputFormat  ff_mxf_demuxer;
+extern AVOutputFormat ff_mxf_muxer;
+extern AVOutputFormat ff_mxf_d10_muxer;
+extern AVOutputFormat ff_mxf_opatom_muxer;
+extern AVInputFormat  ff_mxg_demuxer;
+extern AVInputFormat  ff_nc_demuxer;
+extern AVInputFormat  ff_nistsphere_demuxer;
+extern AVInputFormat  ff_nsp_demuxer;
+extern AVInputFormat  ff_nsv_demuxer;
+extern AVOutputFormat ff_null_muxer;
+extern AVInputFormat  ff_nut_demuxer;
+extern AVOutputFormat ff_nut_muxer;
+extern AVInputFormat  ff_nuv_demuxer;
+extern AVOutputFormat ff_oga_muxer;
+extern AVInputFormat  ff_ogg_demuxer;
+extern AVOutputFormat ff_ogg_muxer;
+extern AVOutputFormat ff_ogv_muxer;
+extern AVInputFormat  ff_oma_demuxer;
+extern AVOutputFormat ff_oma_muxer;
+extern AVOutputFormat ff_opus_muxer;
+extern AVInputFormat  ff_paf_demuxer;
+extern AVInputFormat  ff_pcm_alaw_demuxer;
+extern AVOutputFormat ff_pcm_alaw_muxer;
+extern AVInputFormat  ff_pcm_mulaw_demuxer;
+extern AVOutputFormat ff_pcm_mulaw_muxer;
+extern AVInputFormat  ff_pcm_vidc_demuxer;
+extern AVOutputFormat ff_pcm_vidc_muxer;
+extern AVInputFormat  ff_pcm_f64be_demuxer;
+extern AVOutputFormat ff_pcm_f64be_muxer;
+extern AVInputFormat  ff_pcm_f64le_demuxer;
+extern AVOutputFormat ff_pcm_f64le_muxer;
+extern AVInputFormat  ff_pcm_f32be_demuxer;
+extern AVOutputFormat ff_pcm_f32be_muxer;
+extern AVInputFormat  ff_pcm_f32le_demuxer;
+extern AVOutputFormat ff_pcm_f32le_muxer;
+extern AVInputFormat  ff_pcm_s32be_demuxer;
+extern AVOutputFormat ff_pcm_s32be_muxer;
+extern AVInputFormat  ff_pcm_s32le_demuxer;
+extern AVOutputFormat ff_pcm_s32le_muxer;
+extern AVInputFormat  ff_pcm_s24be_demuxer;
+extern AVOutputFormat ff_pcm_s24be_muxer;
+extern AVInputFormat  ff_pcm_s24le_demuxer;
+extern AVOutputFormat ff_pcm_s24le_muxer;
+extern AVInputFormat  ff_pcm_s16be_demuxer;
+extern AVOutputFormat ff_pcm_s16be_muxer;
+extern AVInputFormat  ff_pcm_s16le_demuxer;
+extern AVOutputFormat ff_pcm_s16le_muxer;
+extern AVInputFormat  ff_pcm_s8_demuxer;
+extern AVOutputFormat ff_pcm_s8_muxer;
+extern AVInputFormat  ff_pcm_u32be_demuxer;
+extern AVOutputFormat ff_pcm_u32be_muxer;
+extern AVInputFormat  ff_pcm_u32le_demuxer;
+extern AVOutputFormat ff_pcm_u32le_muxer;
+extern AVInputFormat  ff_pcm_u24be_demuxer;
+extern AVOutputFormat ff_pcm_u24be_muxer;
+extern AVInputFormat  ff_pcm_u24le_demuxer;
+extern AVOutputFormat ff_pcm_u24le_muxer;
+extern AVInputFormat  ff_pcm_u16be_demuxer;
+extern AVOutputFormat ff_pcm_u16be_muxer;
+extern AVInputFormat  ff_pcm_u16le_demuxer;
+extern AVOutputFormat ff_pcm_u16le_muxer;
+extern AVInputFormat  ff_pcm_u8_demuxer;
+extern AVOutputFormat ff_pcm_u8_muxer;
+extern AVInputFormat  ff_pjs_demuxer;
+extern AVInputFormat  ff_pmp_demuxer;
+extern AVOutputFormat ff_psp_muxer;
+extern AVInputFormat  ff_pva_demuxer;
+extern AVInputFormat  ff_pvf_demuxer;
+extern AVInputFormat  ff_qcp_demuxer;
+extern AVInputFormat  ff_r3d_demuxer;
+extern AVInputFormat  ff_rawvideo_demuxer;
+extern AVOutputFormat ff_rawvideo_muxer;
+extern AVInputFormat  ff_realtext_demuxer;
+extern AVInputFormat  ff_redspark_demuxer;
+extern AVInputFormat  ff_rl2_demuxer;
+extern AVInputFormat  ff_rm_demuxer;
+extern AVOutputFormat ff_rm_muxer;
+extern AVInputFormat  ff_roq_demuxer;
+extern AVOutputFormat ff_roq_muxer;
+extern AVInputFormat  ff_rpl_demuxer;
+extern AVInputFormat  ff_rsd_demuxer;
+extern AVInputFormat  ff_rso_demuxer;
+extern AVOutputFormat ff_rso_muxer;
+extern AVInputFormat  ff_rtp_demuxer;
+extern AVOutputFormat ff_rtp_muxer;
+extern AVOutputFormat ff_rtp_mpegts_muxer;
+extern AVInputFormat  ff_rtsp_demuxer;
+extern AVOutputFormat ff_rtsp_muxer;
+extern AVInputFormat  ff_s337m_demuxer;
+extern AVInputFormat  ff_sami_demuxer;
+extern AVInputFormat  ff_sap_demuxer;
+extern AVOutputFormat ff_sap_muxer;
+extern AVInputFormat  ff_sbc_demuxer;
+extern AVOutputFormat ff_sbc_muxer;
+extern AVInputFormat  ff_sbg_demuxer;
+extern AVInputFormat  ff_scc_demuxer;
+extern AVOutputFormat ff_scc_muxer;
+extern AVInputFormat  ff_sdp_demuxer;
+extern AVInputFormat  ff_sdr2_demuxer;
+extern AVInputFormat  ff_sds_demuxer;
+extern AVInputFormat  ff_sdx_demuxer;
+extern AVInputFormat  ff_segafilm_demuxer;
+extern AVOutputFormat ff_segafilm_muxer;
+extern AVOutputFormat ff_segment_muxer;
+extern AVOutputFormat ff_stream_segment_muxer;
+extern AVInputFormat  ff_ser_demuxer;
+extern AVInputFormat  ff_shorten_demuxer;
+extern AVInputFormat  ff_siff_demuxer;
+extern AVOutputFormat ff_singlejpeg_muxer;
+extern AVInputFormat  ff_sln_demuxer;
+extern AVInputFormat  ff_smacker_demuxer;
+extern AVInputFormat  ff_smjpeg_demuxer;
+extern AVOutputFormat ff_smjpeg_muxer;
+extern AVOutputFormat ff_smoothstreaming_muxer;
+extern AVInputFormat  ff_smush_demuxer;
+extern AVInputFormat  ff_sol_demuxer;
+extern AVInputFormat  ff_sox_demuxer;
+extern AVOutputFormat ff_sox_muxer;
+extern AVOutputFormat ff_spx_muxer;
+extern AVInputFormat  ff_spdif_demuxer;
+extern AVOutputFormat ff_spdif_muxer;
+extern AVInputFormat  ff_srt_demuxer;
+extern AVOutputFormat ff_srt_muxer;
+extern AVInputFormat  ff_str_demuxer;
+extern AVInputFormat  ff_stl_demuxer;
+extern AVInputFormat  ff_subviewer1_demuxer;
+extern AVInputFormat  ff_subviewer_demuxer;
+extern AVInputFormat  ff_sup_demuxer;
+extern AVOutputFormat ff_sup_muxer;
+extern AVInputFormat  ff_svag_demuxer;
+extern AVInputFormat  ff_swf_demuxer;
+extern AVOutputFormat ff_swf_muxer;
+extern AVInputFormat  ff_tak_demuxer;
+extern AVOutputFormat ff_tee_muxer;
+extern AVInputFormat  ff_tedcaptions_demuxer;
+extern AVOutputFormat ff_tg2_muxer;
+extern AVOutputFormat ff_tgp_muxer;
+extern AVInputFormat  ff_thp_demuxer;
+extern AVInputFormat  ff_threedostr_demuxer;
+extern AVInputFormat  ff_tiertexseq_demuxer;
+extern AVOutputFormat ff_mkvtimestamp_v2_muxer;
+extern AVInputFormat  ff_tmv_demuxer;
+extern AVInputFormat  ff_truehd_demuxer;
+extern AVOutputFormat ff_truehd_muxer;
+extern AVInputFormat  ff_tta_demuxer;
+extern AVOutputFormat ff_tta_muxer;
+extern AVInputFormat  ff_txd_demuxer;
+extern AVInputFormat  ff_tty_demuxer;
+extern AVInputFormat  ff_ty_demuxer;
+extern AVOutputFormat ff_uncodedframecrc_muxer;
+extern AVInputFormat  ff_v210_demuxer;
+extern AVInputFormat  ff_v210x_demuxer;
+extern AVInputFormat  ff_vag_demuxer;
+extern AVInputFormat  ff_vc1_demuxer;
+extern AVOutputFormat ff_vc1_muxer;
+extern AVInputFormat  ff_vc1t_demuxer;
+extern AVOutputFormat ff_vc1t_muxer;
+extern AVInputFormat  ff_vividas_demuxer;
+extern AVInputFormat  ff_vivo_demuxer;
+extern AVInputFormat  ff_vmd_demuxer;
+extern AVInputFormat  ff_vobsub_demuxer;
+extern AVInputFormat  ff_voc_demuxer;
+extern AVOutputFormat ff_voc_muxer;
+extern AVInputFormat  ff_vpk_demuxer;
+extern AVInputFormat  ff_vplayer_demuxer;
+extern AVInputFormat  ff_vqf_demuxer;
+extern AVInputFormat  ff_w64_demuxer;
+extern AVOutputFormat ff_w64_muxer;
+extern AVInputFormat  ff_wav_demuxer;
+extern AVOutputFormat ff_wav_muxer;
+extern AVInputFormat  ff_wc3_demuxer;
+extern AVOutputFormat ff_webm_muxer;
+extern AVInputFormat  ff_webm_dash_manifest_demuxer;
+extern AVOutputFormat ff_webm_dash_manifest_muxer;
+extern AVOutputFormat ff_webm_chunk_muxer;
+extern AVOutputFormat ff_webp_muxer;
+extern AVInputFormat  ff_webvtt_demuxer;
+extern AVOutputFormat ff_webvtt_muxer;
+extern AVInputFormat  ff_wsaud_demuxer;
+extern AVInputFormat  ff_wsd_demuxer;
+extern AVInputFormat  ff_wsvqa_demuxer;
+extern AVInputFormat  ff_wtv_demuxer;
+extern AVOutputFormat ff_wtv_muxer;
+extern AVInputFormat  ff_wve_demuxer;
+extern AVInputFormat  ff_wv_demuxer;
+extern AVOutputFormat ff_wv_muxer;
+extern AVInputFormat  ff_xa_demuxer;
+extern AVInputFormat  ff_xbin_demuxer;
+extern AVInputFormat  ff_xmv_demuxer;
+extern AVInputFormat  ff_xvag_demuxer;
+extern AVInputFormat  ff_xwma_demuxer;
+extern AVInputFormat  ff_yop_demuxer;
+extern AVInputFormat  ff_yuv4mpegpipe_demuxer;
+extern AVOutputFormat ff_yuv4mpegpipe_muxer;
+/* image demuxers */
+extern AVInputFormat  ff_image_bmp_pipe_demuxer;
+extern AVInputFormat  ff_image_dds_pipe_demuxer;
+extern AVInputFormat  ff_image_dpx_pipe_demuxer;
+extern AVInputFormat  ff_image_exr_pipe_demuxer;
+extern AVInputFormat  ff_image_gif_pipe_demuxer;
+extern AVInputFormat  ff_image_j2k_pipe_demuxer;
+extern AVInputFormat  ff_image_jpeg_pipe_demuxer;
+extern AVInputFormat  ff_image_jpegls_pipe_demuxer;
+extern AVInputFormat  ff_image_pam_pipe_demuxer;
+extern AVInputFormat  ff_image_pbm_pipe_demuxer;
+extern AVInputFormat  ff_image_pcx_pipe_demuxer;
+extern AVInputFormat  ff_image_pgmyuv_pipe_demuxer;
+extern AVInputFormat  ff_image_pgm_pipe_demuxer;
+extern AVInputFormat  ff_image_pictor_pipe_demuxer;
+extern AVInputFormat  ff_image_png_pipe_demuxer;
+extern AVInputFormat  ff_image_ppm_pipe_demuxer;
+extern AVInputFormat  ff_image_psd_pipe_demuxer;
+extern AVInputFormat  ff_image_qdraw_pipe_demuxer;
+extern AVInputFormat  ff_image_sgi_pipe_demuxer;
+extern AVInputFormat  ff_image_svg_pipe_demuxer;
+extern AVInputFormat  ff_image_sunrast_pipe_demuxer;
+extern AVInputFormat  ff_image_tiff_pipe_demuxer;
+extern AVInputFormat  ff_image_webp_pipe_demuxer;
+extern AVInputFormat  ff_image_xpm_pipe_demuxer;
+extern AVInputFormat  ff_image_xwd_pipe_demuxer;
+
+/* external libraries */
+extern AVOutputFormat ff_chromaprint_muxer;
+extern AVInputFormat  ff_libgme_demuxer;
+extern AVInputFormat  ff_libmodplug_demuxer;
+extern AVInputFormat  ff_libopenmpt_demuxer;
+extern AVInputFormat  ff_vapoursynth_demuxer;
+
+#include "libavformat/muxer_list.c"
+#include "libavformat/demuxer_list.c"
+
+static const AVInputFormat * const *indev_list = NULL;
+static const AVOutputFormat * const *outdev_list = NULL;
+
+const AVOutputFormat *av_muxer_iterate(void **opaque)
+{
+    static const uintptr_t size = sizeof(muxer_list)/sizeof(muxer_list[0]) - 1;
+    uintptr_t i = (uintptr_t)*opaque;
+    const AVOutputFormat *f = NULL;
+
+    if (i < size) {
+        f = muxer_list[i];
+    } else if (indev_list) {
+        f = outdev_list[i - size];
+    }
+
+    if (f)
+        *opaque = (void*)(i + 1);
+    return f;
+}
+
+const AVInputFormat *av_demuxer_iterate(void **opaque)
+{
+    static const uintptr_t size = sizeof(demuxer_list)/sizeof(demuxer_list[0]) - 1;
+    uintptr_t i = (uintptr_t)*opaque;
+    const AVInputFormat *f = NULL;
+
+    if (i < size) {
+        f = demuxer_list[i];
+    } else if (outdev_list) {
+        f = indev_list[i - size];
+    }
+
+    if (f)
+        *opaque = (void*)(i + 1);
+    return f;
+}
+
+static AVMutex avpriv_register_devices_mutex = AV_MUTEX_INITIALIZER;
+
+#if FF_API_NEXT
+FF_DISABLE_DEPRECATION_WARNINGS
+static AVOnce av_format_next_init = AV_ONCE_INIT;
+
+static void av_format_init_next(void)
+{
+    AVOutputFormat *prevout = NULL, *out;
+    AVInputFormat *previn = NULL, *in;
+
+    ff_mutex_lock(&avpriv_register_devices_mutex);
+
+    for (int i = 0; (out = (AVOutputFormat*)muxer_list[i]); i++) {
+        if (prevout)
+            prevout->next = out;
+        prevout = out;
+    }
+
+    if (outdev_list) {
+        for (int i = 0; (out = (AVOutputFormat*)outdev_list[i]); i++) {
+            if (prevout)
+                prevout->next = out;
+            prevout = out;
+        }
+    }
+
+    for (int i = 0; (in = (AVInputFormat*)demuxer_list[i]); i++) {
+        if (previn)
+            previn->next = in;
+        previn = in;
+    }
+
+    if (indev_list) {
+        for (int i = 0; (in = (AVInputFormat*)indev_list[i]); i++) {
+            if (previn)
+                previn->next = in;
+            previn = in;
+        }
+    }
+
+    ff_mutex_unlock(&avpriv_register_devices_mutex);
+}
+
+AVInputFormat *av_iformat_next(const AVInputFormat *f)
+{
+    ff_thread_once(&av_format_next_init, av_format_init_next);
+
+    if (f)
+#if FF_API_AVIOFORMAT
+        return f->next;
+#else
+        return (AVInputFormat *) f->next;
+#endif
+    else {
+        void *opaque = NULL;
+        return (AVInputFormat *)av_demuxer_iterate(&opaque);
+    }
+}
+
+AVOutputFormat *av_oformat_next(const AVOutputFormat *f)
+{
+    ff_thread_once(&av_format_next_init, av_format_init_next);
+
+    if (f)
+#if FF_API_AVIOFORMAT
+        return f->next;
+#else
+        return (AVOutputFormat *) f->next;
+#endif
+    else {
+        void *opaque = NULL;
+        return (AVOutputFormat *)av_muxer_iterate(&opaque);
+    }
+}
+
+void av_register_all(void)
+{
+    ff_thread_once(&av_format_next_init, av_format_init_next);
+}
+
+void av_register_input_format(AVInputFormat *format)
+{
+    ff_thread_once(&av_format_next_init, av_format_init_next);
+}
+
+void av_register_output_format(AVOutputFormat *format)
+{
+    ff_thread_once(&av_format_next_init, av_format_init_next);
+}
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+void avpriv_register_devices(const AVOutputFormat * const o[], const AVInputFormat * const i[])
+{
+    ff_mutex_lock(&avpriv_register_devices_mutex);
+    outdev_list = o;
+    indev_list = i;
+    ff_mutex_unlock(&avpriv_register_devices_mutex);
+#if FF_API_NEXT
+    av_format_init_next();
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/demuxer_list.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/demuxer_list.c
new file mode 100644
index 000000000..1c8fb117f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/demuxer_list.c
@@ -0,0 +1,2 @@
+static const AVInputFormat * const demuxer_list[] = {
+    NULL };
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/muxer_list.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/muxer_list.c
new file mode 100644
index 000000000..f36d9499c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/muxer_list.c
@@ -0,0 +1,2 @@
+static const AVOutputFormat * const muxer_list[] = {
+    NULL };
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/protocol_list.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/protocol_list.c
new file mode 100644
index 000000000..247e1e4c3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/protocol_list.c
@@ -0,0 +1,2 @@
+static const URLProtocol * const url_protocols[] = {
+    NULL };
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/protocols.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/protocols.c
new file mode 100644
index 000000000..ad9565979
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavformat/protocols.c
@@ -0,0 +1,131 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/avstring.h"
+#include "libavutil/mem.h"
+
+#include "url.h"
+
+extern const URLProtocol ff_async_protocol;
+extern const URLProtocol ff_bluray_protocol;
+extern const URLProtocol ff_cache_protocol;
+extern const URLProtocol ff_concat_protocol;
+extern const URLProtocol ff_crypto_protocol;
+extern const URLProtocol ff_data_protocol;
+extern const URLProtocol ff_ffrtmpcrypt_protocol;
+extern const URLProtocol ff_ffrtmphttp_protocol;
+extern const URLProtocol ff_file_protocol;
+extern const URLProtocol ff_ftp_protocol;
+extern const URLProtocol ff_gopher_protocol;
+extern const URLProtocol ff_hls_protocol;
+extern const URLProtocol ff_http_protocol;
+extern const URLProtocol ff_httpproxy_protocol;
+extern const URLProtocol ff_https_protocol;
+extern const URLProtocol ff_icecast_protocol;
+extern const URLProtocol ff_mmsh_protocol;
+extern const URLProtocol ff_mmst_protocol;
+extern const URLProtocol ff_md5_protocol;
+extern const URLProtocol ff_pipe_protocol;
+extern const URLProtocol ff_prompeg_protocol;
+extern const URLProtocol ff_rtmp_protocol;
+extern const URLProtocol ff_rtmpe_protocol;
+extern const URLProtocol ff_rtmps_protocol;
+extern const URLProtocol ff_rtmpt_protocol;
+extern const URLProtocol ff_rtmpte_protocol;
+extern const URLProtocol ff_rtmpts_protocol;
+extern const URLProtocol ff_rtp_protocol;
+extern const URLProtocol ff_sctp_protocol;
+extern const URLProtocol ff_srtp_protocol;
+extern const URLProtocol ff_subfile_protocol;
+extern const URLProtocol ff_tee_protocol;
+extern const URLProtocol ff_tcp_protocol;
+extern const URLProtocol ff_tls_protocol;
+extern const URLProtocol ff_udp_protocol;
+extern const URLProtocol ff_udplite_protocol;
+extern const URLProtocol ff_unix_protocol;
+extern const URLProtocol ff_librtmp_protocol;
+extern const URLProtocol ff_librtmpe_protocol;
+extern const URLProtocol ff_librtmps_protocol;
+extern const URLProtocol ff_librtmpt_protocol;
+extern const URLProtocol ff_librtmpte_protocol;
+extern const URLProtocol ff_libsrt_protocol;
+extern const URLProtocol ff_libssh_protocol;
+extern const URLProtocol ff_libsmbclient_protocol;
+
+#include "libavformat/protocol_list.c"
+
+const AVClass *ff_urlcontext_child_class_next(const AVClass *prev)
+{
+    int i;
+
+    /* find the protocol that corresponds to prev */
+    for (i = 0; prev && url_protocols[i]; i++) {
+        if (url_protocols[i]->priv_data_class == prev) {
+            i++;
+            break;
+        }
+    }
+
+    /* find next protocol with priv options */
+    for (; url_protocols[i]; i++)
+        if (url_protocols[i]->priv_data_class)
+            return url_protocols[i]->priv_data_class;
+    return NULL;
+}
+
+
+const char *avio_enum_protocols(void **opaque, int output)
+{
+    const URLProtocol **p = *opaque;
+
+    p = p ? p + 1 : url_protocols;
+    *opaque = p;
+    if (!*p) {
+        *opaque = NULL;
+        return NULL;
+    }
+    if ((output && (*p)->url_write) || (!output && (*p)->url_read))
+        return (*p)->name;
+    return avio_enum_protocols(opaque, output);
+}
+
+const URLProtocol **ffurl_get_protocols(const char *whitelist,
+                                        const char *blacklist)
+{
+    const URLProtocol **ret;
+    int i, ret_idx = 0;
+
+    ret = av_mallocz_array(FF_ARRAY_ELEMS(url_protocols), sizeof(*ret));
+    if (!ret)
+        return NULL;
+
+    for (i = 0; url_protocols[i]; i++) {
+        const URLProtocol *up = url_protocols[i];
+
+        if (whitelist && *whitelist && !av_match_name(up->name, whitelist))
+            continue;
+        if (blacklist && *blacklist && av_match_name(up->name, blacklist))
+            continue;
+
+        ret[ret_idx++] = up;
+    }
+
+    return ret;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/Makefile b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/Makefile
new file mode 100644
index 000000000..8a7a44e4b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/Makefile
@@ -0,0 +1,250 @@
+NAME = avutil
+DESC = FFmpeg utility library
+
+HEADERS = adler32.h                                                     \
+          aes.h                                                         \
+          aes_ctr.h                                                     \
+          attributes.h                                                  \
+          audio_fifo.h                                                  \
+          avassert.h                                                    \
+          avstring.h                                                    \
+          avutil.h                                                      \
+          base64.h                                                      \
+          blowfish.h                                                    \
+          bprint.h                                                      \
+          bswap.h                                                       \
+          buffer.h                                                      \
+          cast5.h                                                       \
+          camellia.h                                                    \
+          channel_layout.h                                              \
+          common.h                                                      \
+          cpu.h                                                         \
+          crc.h                                                         \
+          des.h                                                         \
+          dict.h                                                        \
+          display.h                                                     \
+          downmix_info.h                                                \
+          encryption_info.h                                             \
+          error.h                                                       \
+          eval.h                                                        \
+          fifo.h                                                        \
+          file.h                                                        \
+          frame.h                                                       \
+          hash.h                                                        \
+          hdr_dynamic_metadata.h                                        \
+          hmac.h                                                        \
+          hwcontext.h                                                   \
+          hwcontext_cuda.h                                              \
+          hwcontext_d3d11va.h                                           \
+          hwcontext_drm.h                                               \
+          hwcontext_dxva2.h                                             \
+          hwcontext_qsv.h                                               \
+          hwcontext_mediacodec.h                                        \
+          hwcontext_vaapi.h                                             \
+          hwcontext_videotoolbox.h                                      \
+          hwcontext_vdpau.h                                             \
+          imgutils.h                                                    \
+          intfloat.h                                                    \
+          intreadwrite.h                                                \
+          lfg.h                                                         \
+          log.h                                                         \
+          macros.h                                                      \
+          mathematics.h                                                 \
+          mastering_display_metadata.h                                  \
+          md5.h                                                         \
+          mem.h                                                         \
+          motion_vector.h                                               \
+          murmur3.h                                                     \
+          opt.h                                                         \
+          parseutils.h                                                  \
+          pixdesc.h                                                     \
+          pixelutils.h                                                  \
+          pixfmt.h                                                      \
+          random_seed.h                                                 \
+          rc4.h                                                         \
+          rational.h                                                    \
+          replaygain.h                                                  \
+          ripemd.h                                                      \
+          samplefmt.h                                                   \
+          sha.h                                                         \
+          sha512.h                                                      \
+          spherical.h                                                   \
+          stereo3d.h                                                    \
+          threadmessage.h                                               \
+          time.h                                                        \
+          timecode.h                                                    \
+          timestamp.h                                                   \
+          tree.h                                                        \
+          twofish.h                                                     \
+          version.h                                                     \
+          xtea.h                                                        \
+          tea.h                                                         \
+          tx.h                                                          \
+
+HEADERS-$(CONFIG_LZO)                   += lzo.h
+
+ARCH_HEADERS = bswap.h                                                  \
+               intmath.h                                                \
+               intreadwrite.h                                           \
+               timer.h                                                  \
+
+BUILT_HEADERS = avconfig.h                                              \
+                ffversion.h
+
+OBJS = adler32.o                                                        \
+       aes.o                                                            \
+       aes_ctr.o                                                        \
+       audio_fifo.o                                                     \
+       avstring.o                                                       \
+       avsscanf.o                                                       \
+       base64.o                                                         \
+       blowfish.o                                                       \
+       bprint.o                                                         \
+       buffer.o                                                         \
+       cast5.o                                                          \
+       camellia.o                                                       \
+       channel_layout.o                                                 \
+       color_utils.o                                                    \
+       cpu.o                                                            \
+       crc.o                                                            \
+       des.o                                                            \
+       dict.o                                                           \
+       display.o                                                        \
+       downmix_info.o                                                   \
+       encryption_info.o                                                \
+       error.o                                                          \
+       eval.o                                                           \
+       fifo.o                                                           \
+       file.o                                                           \
+       file_open.o                                                      \
+       float_dsp.o                                                      \
+       fixed_dsp.o                                                      \
+       frame.o                                                          \
+       hash.o                                                           \
+       hdr_dynamic_metadata.o                                           \
+       hmac.o                                                           \
+       hwcontext.o                                                      \
+       imgutils.o                                                       \
+       integer.o                                                        \
+       intmath.o                                                        \
+       lfg.o                                                            \
+       lls.o                                                            \
+       log.o                                                            \
+       log2_tab.o                                                       \
+       mathematics.o                                                    \
+       mastering_display_metadata.o                                     \
+       md5.o                                                            \
+       mem.o                                                            \
+       murmur3.o                                                        \
+       opt.o                                                            \
+       parseutils.o                                                     \
+       pixdesc.o                                                        \
+       pixelutils.o                                                     \
+       random_seed.o                                                    \
+       rational.o                                                       \
+       reverse.o                                                        \
+       rc4.o                                                            \
+       ripemd.o                                                         \
+       samplefmt.o                                                      \
+       sha.o                                                            \
+       sha512.o                                                         \
+       slicethread.o                                                    \
+       spherical.o                                                      \
+       stereo3d.o                                                       \
+       threadmessage.o                                                  \
+       time.o                                                           \
+       timecode.o                                                       \
+       tree.o                                                           \
+       twofish.o                                                        \
+       utils.o                                                          \
+       xga_font_data.o                                                  \
+       xtea.o                                                           \
+       tea.o                                                            \
+       tx.o                                                             \
+
+OBJS-$(CONFIG_CUDA)                     += hwcontext_cuda.o
+OBJS-$(CONFIG_D3D11VA)                  += hwcontext_d3d11va.o
+OBJS-$(CONFIG_DXVA2)                    += hwcontext_dxva2.o
+OBJS-$(CONFIG_LIBDRM)                   += hwcontext_drm.o
+OBJS-$(CONFIG_LZO)                      += lzo.o
+OBJS-$(CONFIG_MEDIACODEC)               += hwcontext_mediacodec.o
+OBJS-$(CONFIG_OPENCL)                   += hwcontext_opencl.o
+OBJS-$(CONFIG_QSV)                      += hwcontext_qsv.o
+OBJS-$(CONFIG_VAAPI)                    += hwcontext_vaapi.o
+OBJS-$(CONFIG_VIDEOTOOLBOX)             += hwcontext_videotoolbox.o
+OBJS-$(CONFIG_VDPAU)                    += hwcontext_vdpau.o
+
+OBJS += $(COMPAT_OBJS:%=../compat/%)
+
+# Windows resource file
+SLIBOBJS-$(HAVE_GNU_WINDRES)            += avutilres.o
+
+SKIPHEADERS-$(HAVE_CUDA_H)             += hwcontext_cuda.h
+SKIPHEADERS-$(CONFIG_CUDA)             += hwcontext_cuda_internal.h     \
+                                          cuda_check.h
+SKIPHEADERS-$(CONFIG_D3D11VA)          += hwcontext_d3d11va.h
+SKIPHEADERS-$(CONFIG_DXVA2)            += hwcontext_dxva2.h
+SKIPHEADERS-$(CONFIG_QSV)              += hwcontext_qsv.h
+SKIPHEADERS-$(CONFIG_OPENCL)           += hwcontext_opencl.h
+SKIPHEADERS-$(CONFIG_VAAPI)            += hwcontext_vaapi.h
+SKIPHEADERS-$(CONFIG_VIDEOTOOLBOX)     += hwcontext_videotoolbox.h
+SKIPHEADERS-$(CONFIG_VDPAU)            += hwcontext_vdpau.h
+
+TESTPROGS = adler32                                                     \
+            aes                                                         \
+            aes_ctr                                                     \
+            audio_fifo                                                  \
+            avstring                                                    \
+            base64                                                      \
+            blowfish                                                    \
+            bprint                                                      \
+            cast5                                                       \
+            camellia                                                    \
+            color_utils                                                 \
+            cpu                                                         \
+            crc                                                         \
+            des                                                         \
+            dict                                                        \
+            display                                                     \
+            encryption_info                                             \
+            error                                                       \
+            eval                                                        \
+            file                                                        \
+            fifo                                                        \
+            hash                                                        \
+            hmac                                                        \
+            hwdevice                                                    \
+            integer                                                     \
+            imgutils                                                    \
+            lfg                                                         \
+            lls                                                         \
+            log                                                         \
+            md5                                                         \
+            murmur3                                                     \
+            opt                                                         \
+            pca                                                         \
+            parseutils                                                  \
+            pixdesc                                                     \
+            pixelutils                                                  \
+            pixfmt_best                                                 \
+            random_seed                                                 \
+            rational                                                    \
+            ripemd                                                      \
+            sha                                                         \
+            sha512                                                      \
+            softfloat                                                   \
+            tree                                                        \
+            twofish                                                     \
+            utf8                                                        \
+            xtea                                                        \
+            tea                                                         \
+
+TESTPROGS-$(HAVE_THREADS)            += cpu_init
+TESTPROGS-$(HAVE_LZO1X_999_COMPRESS) += lzo
+
+TOOLS = crypto_bench ffhash ffeval ffescape
+
+tools/crypto_bench$(EXESUF): ELIBS += $(if $(VERSUS),$(subst +, -l,+$(VERSUS)),)
+tools/crypto_bench$(EXESUF): CFLAGS += -DUSE_EXT_LIBS=0$(if $(VERSUS),$(subst +,+USE_,+$(VERSUS)),)
+
+$(SUBDIR)tests/lzo$(EXESUF): ELIBS = -llzo2
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/Makefile b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/Makefile
new file mode 100644
index 000000000..5613813ba
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/Makefile
@@ -0,0 +1,4 @@
+OBJS += aarch64/cpu.o                                                 \
+        aarch64/float_dsp_init.o                                      \
+
+NEON-OBJS += aarch64/float_dsp_neon.o
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/bswap.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/bswap.h
new file mode 100644
index 000000000..1e735c52c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/bswap.h
@@ -0,0 +1,50 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AARCH64_BSWAP_H
+#define AVUTIL_AARCH64_BSWAP_H
+
+#include <stdint.h>
+#include "config.h"
+#include "libavutil/attributes.h"
+
+#if HAVE_INLINE_ASM
+
+#define av_bswap16 av_bswap16
+static av_always_inline av_const unsigned av_bswap16(unsigned x)
+{
+    __asm__("rev16 %w0, %w0" : "+r"(x));
+    return x;
+}
+
+#define av_bswap32 av_bswap32
+static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
+{
+    __asm__("rev %w0, %w0" : "+r"(x));
+    return x;
+}
+
+#define av_bswap64 av_bswap64
+static av_always_inline av_const uint64_t av_bswap64(uint64_t x)
+{
+    __asm__("rev %0, %0" : "+r"(x));
+    return x;
+}
+
+#endif /* HAVE_INLINE_ASM */
+#endif /* AVUTIL_AARCH64_BSWAP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/cpu.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/cpu.c
new file mode 100644
index 000000000..cc641da57
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/cpu.c
@@ -0,0 +1,38 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/cpu.h"
+#include "libavutil/cpu_internal.h"
+#include "config.h"
+
+int ff_get_cpu_flags_aarch64(void)
+{
+    return AV_CPU_FLAG_ARMV8 * HAVE_ARMV8 |
+           AV_CPU_FLAG_NEON  * HAVE_NEON  |
+           AV_CPU_FLAG_VFP   * HAVE_VFP;
+}
+
+size_t ff_get_cpu_max_align_aarch64(void)
+{
+    int flags = av_get_cpu_flags();
+
+    if (flags & AV_CPU_FLAG_NEON)
+        return 16;
+
+    return 8;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/cpu.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/cpu.h
new file mode 100644
index 000000000..2ee3f9323
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/cpu.h
@@ -0,0 +1,29 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AARCH64_CPU_H
+#define AVUTIL_AARCH64_CPU_H
+
+#include "libavutil/cpu.h"
+#include "libavutil/cpu_internal.h"
+
+#define have_armv8(flags) CPUEXT(flags, ARMV8)
+#define have_neon(flags) CPUEXT(flags, NEON)
+#define have_vfp(flags)  CPUEXT(flags, VFP)
+
+#endif /* AVUTIL_AARCH64_CPU_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/float_dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/float_dsp_init.c
new file mode 100644
index 000000000..432507182
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/float_dsp_init.c
@@ -0,0 +1,69 @@
+/*
+ * ARM NEON optimised Float DSP functions
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/float_dsp.h"
+#include "cpu.h"
+
+void ff_vector_fmul_neon(float *dst, const float *src0, const float *src1,
+                         int len);
+
+void ff_vector_fmac_scalar_neon(float *dst, const float *src, float mul,
+                                int len);
+
+void ff_vector_fmul_scalar_neon(float *dst, const float *src, float mul,
+                                int len);
+
+void ff_vector_dmul_scalar_neon(double *dst, const double *src, double mul,
+                                int len);
+
+void ff_vector_fmul_window_neon(float *dst, const float *src0,
+                                const float *src1, const float *win, int len);
+
+void ff_vector_fmul_add_neon(float *dst, const float *src0, const float *src1,
+                             const float *src2, int len);
+
+void ff_vector_fmul_reverse_neon(float *dst, const float *src0,
+                                 const float *src1, int len);
+
+void ff_butterflies_float_neon(float *v1, float *v2, int len);
+
+float ff_scalarproduct_float_neon(const float *v1, const float *v2, int len);
+
+av_cold void ff_float_dsp_init_aarch64(AVFloatDSPContext *fdsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        fdsp->butterflies_float   = ff_butterflies_float_neon;
+        fdsp->scalarproduct_float = ff_scalarproduct_float_neon;
+        fdsp->vector_dmul_scalar  = ff_vector_dmul_scalar_neon;
+        fdsp->vector_fmul         = ff_vector_fmul_neon;
+        fdsp->vector_fmac_scalar  = ff_vector_fmac_scalar_neon;
+        fdsp->vector_fmul_add     = ff_vector_fmul_add_neon;
+        fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_neon;
+        fdsp->vector_fmul_scalar  = ff_vector_fmul_scalar_neon;
+        fdsp->vector_fmul_window  = ff_vector_fmul_window_neon;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/neontest.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/neontest.h
new file mode 100644
index 000000000..2d0fc1999
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/neontest.h
@@ -0,0 +1,70 @@
+/*
+ * check NEON registers for clobbering
+ * Copyright (c) 2008 Ramiro Polla <ramiro.polla@gmail.com>
+ * Copyright (c) 2013 Martin Storsjo
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AARCH64_NEONTEST_H
+#define AVUTIL_AARCH64_NEONTEST_H
+
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+
+#include "libavutil/bswap.h"
+
+#define storeneonregs(mem)                \
+    __asm__ volatile(                     \
+        "stp d8,  d9,  [%0]\n\t"          \
+        "stp d10, d11, [%0, #16]\n\t"     \
+        "stp d12, d13, [%0, #32]\n\t"     \
+        "stp d14, d15, [%0, #48]\n\t"     \
+        :: "r"(mem) : "memory")
+
+#define testneonclobbers(func, ctx, ...)                        \
+    uint64_t neon[2][8];                                        \
+    int ret;                                                    \
+    storeneonregs(neon[0]);                                     \
+    ret = __real_ ## func(ctx, __VA_ARGS__);                    \
+    storeneonregs(neon[1]);                                     \
+    if (memcmp(neon[0], neon[1], sizeof(neon[0]))) {            \
+        int i;                                                  \
+        av_log(ctx, AV_LOG_ERROR,                               \
+               "NEON REGS CLOBBERED IN %s!\n", #func);          \
+        for (i = 0; i < 8; i ++)                                \
+            if (neon[0][i] != neon[1][i]) {                     \
+                av_log(ctx, AV_LOG_ERROR,                       \
+                       "d%-2d = %016"PRIx64"\n",                \
+                       8 + i, av_bswap64(neon[0][i]));          \
+                av_log(ctx, AV_LOG_ERROR,                       \
+                       "   -> %016"PRIx64"\n",                  \
+                       av_bswap64(neon[1][i]));                 \
+            }                                                   \
+        abort();                                                \
+    }                                                           \
+    return ret
+
+#define wrap(func)      \
+int __real_ ## func;    \
+int __wrap_ ## func;    \
+int __wrap_ ## func
+
+#endif /* AVUTIL_AARCH64_NEONTEST_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/timer.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/timer.h
new file mode 100644
index 000000000..b57003941
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aarch64/timer.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2015 Janne Grunau <janne-libav@jannau.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AARCH64_TIMER_H
+#define AVUTIL_AARCH64_TIMER_H
+
+#include <stdint.h>
+#include "config.h"
+
+#if HAVE_INLINE_ASM
+
+#define AV_READ_TIME read_time
+
+static inline uint64_t read_time(void)
+{
+    uint64_t cycle_counter;
+    __asm__ volatile(
+        "isb                   \t\n"
+        "mrs %0, pmccntr_el0       "
+        : "=r"(cycle_counter) :: "memory" );
+
+    return cycle_counter;
+}
+
+#endif /* HAVE_INLINE_ASM */
+
+#endif /* AVUTIL_AARCH64_TIMER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/adler32.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/adler32.c
new file mode 100644
index 000000000..c87d5e261
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/adler32.c
@@ -0,0 +1,97 @@
+/*
+ * Compute the Adler-32 checksum of a data stream.
+ * This is a modified version based on adler32.c from the zlib library.
+ *
+ * Copyright (C) 1995 Mark Adler
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+/**
+ * @file
+ * Computes the Adler-32 checksum of a data stream
+ *
+ * This is a modified version based on adler32.c from the zlib library.
+ * @author Mark Adler
+ * @ingroup lavu_adler32
+ */
+
+#include "config.h"
+#include "adler32.h"
+#include "common.h"
+#include "intreadwrite.h"
+
+#define BASE 65521L /* largest prime smaller than 65536 */
+
+#define DO1(buf)  { s1 += *buf++; s2 += s1; }
+#define DO4(buf)  DO1(buf); DO1(buf); DO1(buf); DO1(buf);
+#define DO16(buf) DO4(buf); DO4(buf); DO4(buf); DO4(buf);
+
+unsigned long av_adler32_update(unsigned long adler, const uint8_t * buf,
+                                unsigned int len)
+{
+    unsigned long s1 = adler & 0xffff;
+    unsigned long s2 = adler >> 16;
+
+    while (len > 0) {
+#if HAVE_FAST_64BIT && HAVE_FAST_UNALIGNED && !CONFIG_SMALL
+        unsigned len2 = FFMIN((len-1) & ~7, 23*8);
+        if (len2) {
+            uint64_t a1= 0;
+            uint64_t a2= 0;
+            uint64_t b1= 0;
+            uint64_t b2= 0;
+            len -= len2;
+            s2 += s1*len2;
+            while (len2 >= 8) {
+                uint64_t v = AV_RN64(buf);
+                a2 += a1;
+                b2 += b1;
+                a1 +=  v    &0x00FF00FF00FF00FF;
+                b1 += (v>>8)&0x00FF00FF00FF00FF;
+                len2 -= 8;
+                buf+=8;
+            }
+
+            //We combine the 8 interleaved adler32 checksums without overflows
+            //Decreasing the number of iterations would allow below code to be
+            //simplified but would likely be slower due to the fewer iterations
+            //of the inner loop
+            s1 += ((a1+b1)*0x1000100010001)>>48;
+            s2 += ((((a2&0xFFFF0000FFFF)+(b2&0xFFFF0000FFFF)+((a2>>16)&0xFFFF0000FFFF)+((b2>>16)&0xFFFF0000FFFF))*0x800000008)>>32)
+#if HAVE_BIGENDIAN
+                 + 2*((b1*0x1000200030004)>>48)
+                 +   ((a1*0x1000100010001)>>48)
+                 + 2*((a1*0x0000100020003)>>48);
+#else
+                 + 2*((a1*0x4000300020001)>>48)
+                 +   ((b1*0x1000100010001)>>48)
+                 + 2*((b1*0x3000200010000)>>48);
+#endif
+        }
+#else
+        while (len > 4  && s2 < (1U << 31)) {
+            DO4(buf);
+            len -= 4;
+        }
+#endif
+        DO1(buf); len--;
+        s1 %= BASE;
+        s2 %= BASE;
+    }
+    return (s2 << 16) | s1;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/adler32.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/adler32.h
new file mode 100644
index 000000000..a1f035b73
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/adler32.h
@@ -0,0 +1,60 @@
+/*
+ * copyright (c) 2006 Mans Rullgard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu_adler32
+ * Public header for Adler-32 hash function implementation.
+ */
+
+#ifndef AVUTIL_ADLER32_H
+#define AVUTIL_ADLER32_H
+
+#include <stdint.h>
+#include "attributes.h"
+
+/**
+ * @defgroup lavu_adler32 Adler-32
+ * @ingroup lavu_hash
+ * Adler-32 hash function implementation.
+ *
+ * @{
+ */
+
+/**
+ * Calculate the Adler32 checksum of a buffer.
+ *
+ * Passing the return value to a subsequent av_adler32_update() call
+ * allows the checksum of multiple buffers to be calculated as though
+ * they were concatenated.
+ *
+ * @param adler initial checksum value
+ * @param buf   pointer to input buffer
+ * @param len   size of input buffer
+ * @return      updated checksum
+ */
+unsigned long av_adler32_update(unsigned long adler, const uint8_t *buf,
+                                unsigned int len) av_pure;
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_ADLER32_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes.c
new file mode 100644
index 000000000..397ea7738
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes.c
@@ -0,0 +1,268 @@
+/*
+ * copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * some optimization ideas from aes128.c by Reimar Doeffinger
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "common.h"
+#include "aes.h"
+#include "aes_internal.h"
+#include "intreadwrite.h"
+#include "timer.h"
+
+const int av_aes_size= sizeof(AVAES);
+
+struct AVAES *av_aes_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVAES));
+}
+
+static const uint8_t rcon[10] = {
+    0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36
+};
+
+static uint8_t     sbox[256];
+static uint8_t inv_sbox[256];
+#if CONFIG_SMALL
+static uint32_t enc_multbl[1][256];
+static uint32_t dec_multbl[1][256];
+#else
+static uint32_t enc_multbl[4][256];
+static uint32_t dec_multbl[4][256];
+#endif
+
+#if HAVE_BIGENDIAN
+#   define ROT(x, s) (((x) >> (s)) | ((x) << (32-(s))))
+#else
+#   define ROT(x, s) (((x) << (s)) | ((x) >> (32-(s))))
+#endif
+
+static inline void addkey(av_aes_block *dst, const av_aes_block *src,
+                          const av_aes_block *round_key)
+{
+    dst->u64[0] = src->u64[0] ^ round_key->u64[0];
+    dst->u64[1] = src->u64[1] ^ round_key->u64[1];
+}
+
+static inline void addkey_s(av_aes_block *dst, const uint8_t *src,
+                            const av_aes_block *round_key)
+{
+    dst->u64[0] = AV_RN64(src)     ^ round_key->u64[0];
+    dst->u64[1] = AV_RN64(src + 8) ^ round_key->u64[1];
+}
+
+static inline void addkey_d(uint8_t *dst, const av_aes_block *src,
+                            const av_aes_block *round_key)
+{
+    AV_WN64(dst,     src->u64[0] ^ round_key->u64[0]);
+    AV_WN64(dst + 8, src->u64[1] ^ round_key->u64[1]);
+}
+
+static void subshift(av_aes_block s0[2], int s, const uint8_t *box)
+{
+    av_aes_block *s1 = (av_aes_block *) (s0[0].u8 - s);
+    av_aes_block *s3 = (av_aes_block *) (s0[0].u8 + s);
+
+    s0[0].u8[ 0] = box[s0[1].u8[ 0]];
+    s0[0].u8[ 4] = box[s0[1].u8[ 4]];
+    s0[0].u8[ 8] = box[s0[1].u8[ 8]];
+    s0[0].u8[12] = box[s0[1].u8[12]];
+    s1[0].u8[ 3] = box[s1[1].u8[ 7]];
+    s1[0].u8[ 7] = box[s1[1].u8[11]];
+    s1[0].u8[11] = box[s1[1].u8[15]];
+    s1[0].u8[15] = box[s1[1].u8[ 3]];
+    s0[0].u8[ 2] = box[s0[1].u8[10]];
+    s0[0].u8[10] = box[s0[1].u8[ 2]];
+    s0[0].u8[ 6] = box[s0[1].u8[14]];
+    s0[0].u8[14] = box[s0[1].u8[ 6]];
+    s3[0].u8[ 1] = box[s3[1].u8[13]];
+    s3[0].u8[13] = box[s3[1].u8[ 9]];
+    s3[0].u8[ 9] = box[s3[1].u8[ 5]];
+    s3[0].u8[ 5] = box[s3[1].u8[ 1]];
+}
+
+static inline int mix_core(uint32_t multbl[][256], int a, int b, int c, int d)
+{
+#if CONFIG_SMALL
+    return multbl[0][a] ^ ROT(multbl[0][b], 8) ^ ROT(multbl[0][c], 16) ^ ROT(multbl[0][d], 24);
+#else
+    return multbl[0][a] ^ multbl[1][b] ^ multbl[2][c] ^ multbl[3][d];
+#endif
+}
+
+static inline void mix(av_aes_block state[2], uint32_t multbl[][256], int s1, int s3)
+{
+    uint8_t (*src)[4] = state[1].u8x4;
+    state[0].u32[0] = mix_core(multbl, src[0][0], src[s1    ][1], src[2][2], src[s3    ][3]);
+    state[0].u32[1] = mix_core(multbl, src[1][0], src[s3 - 1][1], src[3][2], src[s1 - 1][3]);
+    state[0].u32[2] = mix_core(multbl, src[2][0], src[s3    ][1], src[0][2], src[s1    ][3]);
+    state[0].u32[3] = mix_core(multbl, src[3][0], src[s1 - 1][1], src[1][2], src[s3 - 1][3]);
+}
+
+static inline void aes_crypt(AVAES *a, int s, const uint8_t *sbox,
+                         uint32_t multbl[][256])
+{
+    int r;
+
+    for (r = a->rounds - 1; r > 0; r--) {
+        mix(a->state, multbl, 3 - s, 1 + s);
+        addkey(&a->state[1], &a->state[0], &a->round_key[r]);
+    }
+
+    subshift(&a->state[0], s, sbox);
+}
+
+static void aes_encrypt(AVAES *a, uint8_t *dst, const uint8_t *src,
+                        int count, uint8_t *iv, int rounds)
+{
+    while (count--) {
+        addkey_s(&a->state[1], src, &a->round_key[rounds]);
+        if (iv)
+            addkey_s(&a->state[1], iv, &a->state[1]);
+        aes_crypt(a, 2, sbox, enc_multbl);
+        addkey_d(dst, &a->state[0], &a->round_key[0]);
+        if (iv)
+            memcpy(iv, dst, 16);
+        src += 16;
+        dst += 16;
+    }
+}
+
+static void aes_decrypt(AVAES *a, uint8_t *dst, const uint8_t *src,
+                        int count, uint8_t *iv, int rounds)
+{
+    while (count--) {
+        addkey_s(&a->state[1], src, &a->round_key[rounds]);
+        aes_crypt(a, 0, inv_sbox, dec_multbl);
+        if (iv) {
+            addkey_s(&a->state[0], iv, &a->state[0]);
+            memcpy(iv, src, 16);
+        }
+        addkey_d(dst, &a->state[0], &a->round_key[0]);
+        src += 16;
+        dst += 16;
+    }
+}
+
+void av_aes_crypt(AVAES *a, uint8_t *dst, const uint8_t *src,
+                  int count, uint8_t *iv, int decrypt)
+{
+    a->crypt(a, dst, src, count, iv, a->rounds);
+}
+
+static void init_multbl2(uint32_t tbl[][256], const int c[4],
+                         const uint8_t *log8, const uint8_t *alog8,
+                         const uint8_t *sbox)
+{
+    int i;
+
+    for (i = 0; i < 256; i++) {
+        int x = sbox[i];
+        if (x) {
+            int k, l, m, n;
+            x = log8[x];
+            k = alog8[x + log8[c[0]]];
+            l = alog8[x + log8[c[1]]];
+            m = alog8[x + log8[c[2]]];
+            n = alog8[x + log8[c[3]]];
+            tbl[0][i] = AV_NE(MKBETAG(k, l, m, n), MKTAG(k, l, m, n));
+#if !CONFIG_SMALL
+            tbl[1][i] = ROT(tbl[0][i], 8);
+            tbl[2][i] = ROT(tbl[0][i], 16);
+            tbl[3][i] = ROT(tbl[0][i], 24);
+#endif
+        }
+    }
+}
+
+// this is based on the reference AES code by Paulo Barreto and Vincent Rijmen
+int av_aes_init(AVAES *a, const uint8_t *key, int key_bits, int decrypt)
+{
+    int i, j, t, rconpointer = 0;
+    uint8_t tk[8][4];
+    int KC = key_bits >> 5;
+    int rounds = KC + 6;
+    uint8_t log8[256];
+    uint8_t alog8[512];
+
+    a->crypt = decrypt ? aes_decrypt : aes_encrypt;
+
+    if (!enc_multbl[FF_ARRAY_ELEMS(enc_multbl) - 1][FF_ARRAY_ELEMS(enc_multbl[0]) - 1]) {
+        j = 1;
+        for (i = 0; i < 255; i++) {
+            alog8[i] = alog8[i + 255] = j;
+            log8[j] = i;
+            j ^= j + j;
+            if (j > 255)
+                j ^= 0x11B;
+        }
+        for (i = 0; i < 256; i++) {
+            j = i ? alog8[255 - log8[i]] : 0;
+            j ^= (j << 1) ^ (j << 2) ^ (j << 3) ^ (j << 4);
+            j = (j ^ (j >> 8) ^ 99) & 255;
+            inv_sbox[j] = i;
+            sbox[i]     = j;
+        }
+        init_multbl2(dec_multbl, (const int[4]) { 0xe, 0x9, 0xd, 0xb },
+                     log8, alog8, inv_sbox);
+        init_multbl2(enc_multbl, (const int[4]) { 0x2, 0x1, 0x1, 0x3 },
+                     log8, alog8, sbox);
+    }
+
+    if (key_bits != 128 && key_bits != 192 && key_bits != 256)
+        return AVERROR(EINVAL);
+
+    a->rounds = rounds;
+
+    memcpy(tk, key, KC * 4);
+    memcpy(a->round_key[0].u8, key, KC * 4);
+
+    for (t = KC * 4; t < (rounds + 1) * 16; t += KC * 4) {
+        for (i = 0; i < 4; i++)
+            tk[0][i] ^= sbox[tk[KC - 1][(i + 1) & 3]];
+        tk[0][0] ^= rcon[rconpointer++];
+
+        for (j = 1; j < KC; j++) {
+            if (KC != 8 || j != KC >> 1)
+                for (i = 0; i < 4; i++)
+                    tk[j][i] ^= tk[j - 1][i];
+            else
+                for (i = 0; i < 4; i++)
+                    tk[j][i] ^= sbox[tk[j - 1][i]];
+        }
+
+        memcpy(a->round_key[0].u8 + t, tk, KC * 4);
+    }
+
+    if (decrypt) {
+        for (i = 1; i < rounds; i++) {
+            av_aes_block tmp[3];
+            tmp[2] = a->round_key[i];
+            subshift(&tmp[1], 0, sbox);
+            mix(tmp, dec_multbl, 1, 3);
+            a->round_key[i] = tmp[0];
+        }
+    } else {
+        for (i = 0; i < (rounds + 1) >> 1; i++)
+            FFSWAP(av_aes_block, a->round_key[i], a->round_key[rounds - i]);
+    }
+
+    return 0;
+}
+
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes.h
new file mode 100644
index 000000000..09efbda10
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes.h
@@ -0,0 +1,65 @@
+/*
+ * copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AES_H
+#define AVUTIL_AES_H
+
+#include <stdint.h>
+
+#include "attributes.h"
+#include "version.h"
+
+/**
+ * @defgroup lavu_aes AES
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+extern const int av_aes_size;
+
+struct AVAES;
+
+/**
+ * Allocate an AVAES context.
+ */
+struct AVAES *av_aes_alloc(void);
+
+/**
+ * Initialize an AVAES context.
+ * @param key_bits 128, 192 or 256
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+int av_aes_init(struct AVAES *a, const uint8_t *key, int key_bits, int decrypt);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context.
+ * @param count number of 16 byte blocks
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst
+ * @param iv initialization vector for CBC mode, if NULL then ECB will be used
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_aes_crypt(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_AES_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes_ctr.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes_ctr.c
new file mode 100644
index 000000000..0c2e86785
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes_ctr.c
@@ -0,0 +1,135 @@
+/*
+ * AES-CTR cipher
+ * Copyright (c) 2015 Eran Kornblau <erankor at gmail dot com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "common.h"
+#include "aes_ctr.h"
+#include "aes.h"
+#include "random_seed.h"
+
+#define AES_BLOCK_SIZE (16)
+
+typedef struct AVAESCTR {
+    struct AVAES* aes;
+    uint8_t counter[AES_BLOCK_SIZE];
+    uint8_t encrypted_counter[AES_BLOCK_SIZE];
+    int block_offset;
+} AVAESCTR;
+
+struct AVAESCTR *av_aes_ctr_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVAESCTR));
+}
+
+void av_aes_ctr_set_iv(struct AVAESCTR *a, const uint8_t* iv)
+{
+    memcpy(a->counter, iv, AES_CTR_IV_SIZE);
+    memset(a->counter + AES_CTR_IV_SIZE, 0, sizeof(a->counter) - AES_CTR_IV_SIZE);
+    a->block_offset = 0;
+}
+
+void av_aes_ctr_set_full_iv(struct AVAESCTR *a, const uint8_t* iv)
+{
+    memcpy(a->counter, iv, sizeof(a->counter));
+    a->block_offset = 0;
+}
+
+const uint8_t* av_aes_ctr_get_iv(struct AVAESCTR *a)
+{
+    return a->counter;
+}
+
+void av_aes_ctr_set_random_iv(struct AVAESCTR *a)
+{
+    uint32_t iv[2];
+
+    iv[0] = av_get_random_seed();
+    iv[1] = av_get_random_seed();
+
+    av_aes_ctr_set_iv(a, (uint8_t*)iv);
+}
+
+int av_aes_ctr_init(struct AVAESCTR *a, const uint8_t *key)
+{
+    a->aes = av_aes_alloc();
+    if (!a->aes) {
+        return AVERROR(ENOMEM);
+    }
+
+    av_aes_init(a->aes, key, 128, 0);
+
+    memset(a->counter, 0, sizeof(a->counter));
+    a->block_offset = 0;
+
+    return 0;
+}
+
+void av_aes_ctr_free(struct AVAESCTR *a)
+{
+    if (a) {
+        av_freep(&a->aes);
+        av_free(a);
+    }
+}
+
+static void av_aes_ctr_increment_be64(uint8_t* counter)
+{
+    uint8_t* cur_pos;
+
+    for (cur_pos = counter + 7; cur_pos >= counter; cur_pos--) {
+        (*cur_pos)++;
+        if (*cur_pos != 0) {
+            break;
+        }
+    }
+}
+
+void av_aes_ctr_increment_iv(struct AVAESCTR *a)
+{
+    av_aes_ctr_increment_be64(a->counter);
+    memset(a->counter + AES_CTR_IV_SIZE, 0, sizeof(a->counter) - AES_CTR_IV_SIZE);
+    a->block_offset = 0;
+}
+
+void av_aes_ctr_crypt(struct AVAESCTR *a, uint8_t *dst, const uint8_t *src, int count)
+{
+    const uint8_t* src_end = src + count;
+    const uint8_t* cur_end_pos;
+    uint8_t* encrypted_counter_pos;
+
+    while (src < src_end) {
+        if (a->block_offset == 0) {
+            av_aes_crypt(a->aes, a->encrypted_counter, a->counter, 1, NULL, 0);
+
+            av_aes_ctr_increment_be64(a->counter + 8);
+        }
+
+        encrypted_counter_pos = a->encrypted_counter + a->block_offset;
+        cur_end_pos = src + AES_BLOCK_SIZE - a->block_offset;
+        cur_end_pos = FFMIN(cur_end_pos, src_end);
+
+        a->block_offset += cur_end_pos - src;
+        a->block_offset &= (AES_BLOCK_SIZE - 1);
+
+        while (src < cur_end_pos) {
+            *dst++ = *src++ ^ *encrypted_counter_pos++;
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes_ctr.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes_ctr.h
new file mode 100644
index 000000000..e4aae126a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes_ctr.h
@@ -0,0 +1,88 @@
+/*
+ * AES-CTR cipher
+ * Copyright (c) 2015 Eran Kornblau <erankor at gmail dot com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AES_CTR_H
+#define AVUTIL_AES_CTR_H
+
+#include <stdint.h>
+
+#include "attributes.h"
+#include "version.h"
+
+#define AES_CTR_KEY_SIZE (16)
+#define AES_CTR_IV_SIZE (8)
+
+struct AVAESCTR;
+
+/**
+ * Allocate an AVAESCTR context.
+ */
+struct AVAESCTR *av_aes_ctr_alloc(void);
+
+/**
+ * Initialize an AVAESCTR context.
+ * @param key encryption key, must have a length of AES_CTR_KEY_SIZE
+ */
+int av_aes_ctr_init(struct AVAESCTR *a, const uint8_t *key);
+
+/**
+ * Release an AVAESCTR context.
+ */
+void av_aes_ctr_free(struct AVAESCTR *a);
+
+/**
+ * Process a buffer using a previously initialized context.
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst
+ * @param size the size of src and dst
+ */
+void av_aes_ctr_crypt(struct AVAESCTR *a, uint8_t *dst, const uint8_t *src, int size);
+
+/**
+ * Get the current iv
+ */
+const uint8_t* av_aes_ctr_get_iv(struct AVAESCTR *a);
+
+/**
+ * Generate a random iv
+ */
+void av_aes_ctr_set_random_iv(struct AVAESCTR *a);
+
+/**
+ * Forcefully change the 8-byte iv
+ */
+void av_aes_ctr_set_iv(struct AVAESCTR *a, const uint8_t* iv);
+
+/**
+ * Forcefully change the "full" 16-byte iv, including the counter
+ */
+void av_aes_ctr_set_full_iv(struct AVAESCTR *a, const uint8_t* iv);
+
+/**
+ * Increment the top 64 bit of the iv (performed after each frame)
+ */
+void av_aes_ctr_increment_iv(struct AVAESCTR *a);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_AES_CTR_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes_internal.h
new file mode 100644
index 000000000..494425878
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/aes_internal.h
@@ -0,0 +1,43 @@
+/*
+ * copyright (c) 2015 Rodger Combs <rodger.combs@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AES_INTERNAL_H
+#define AVUTIL_AES_INTERNAL_H
+
+#include "mem.h"
+#include <stdint.h>
+
+typedef union {
+    uint64_t u64[2];
+    uint32_t u32[4];
+    uint8_t u8x4[4][4];
+    uint8_t u8[16];
+} av_aes_block;
+
+typedef struct AVAES {
+    // Note: round_key[16] is accessed in the init code, but this only
+    // overwrites state, which does not matter (see also commit ba554c0).
+    DECLARE_ALIGNED(16, av_aes_block, round_key)[15];
+    DECLARE_ALIGNED(16, av_aes_block, state)[2];
+    int rounds;
+    void (*crypt)(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int rounds);
+} AVAES;
+
+#endif /* AVUTIL_AES_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/Makefile b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/Makefile
new file mode 100644
index 000000000..5da44b054
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/Makefile
@@ -0,0 +1,8 @@
+OBJS += arm/cpu.o                                                       \
+        arm/float_dsp_init_arm.o                                        \
+
+VFP-OBJS += arm/float_dsp_init_vfp.o                                    \
+            arm/float_dsp_vfp.o                                         \
+
+NEON-OBJS += arm/float_dsp_init_neon.o                                  \
+             arm/float_dsp_neon.o                                       \
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/bswap.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/bswap.h
new file mode 100644
index 000000000..611ff0ad5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/bswap.h
@@ -0,0 +1,67 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_ARM_BSWAP_H
+#define AVUTIL_ARM_BSWAP_H
+
+#include <stdint.h>
+#include "config.h"
+#include "libavutil/attributes.h"
+
+#ifdef __ARMCC_VERSION
+
+#if HAVE_ARMV6
+#define av_bswap32 av_bswap32
+static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
+{
+    return __rev(x);
+}
+#endif /* HAVE_ARMV6 */
+
+#elif HAVE_INLINE_ASM
+
+#if HAVE_ARMV6_INLINE
+#define av_bswap16 av_bswap16
+static av_always_inline av_const unsigned av_bswap16(unsigned x)
+{
+    __asm__("rev16 %0, %0" : "+r"(x));
+    return x;
+}
+#endif
+
+#if AV_GCC_VERSION_AT_MOST(4,4)
+#define av_bswap32 av_bswap32
+static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
+{
+#if HAVE_ARMV6_INLINE
+    __asm__("rev %0, %0" : "+r"(x));
+#else
+    uint32_t t;
+    __asm__ ("eor %1, %0, %0, ror #16 \n\t"
+             "bic %1, %1, #0xFF0000   \n\t"
+             "mov %0, %0, ror #8      \n\t"
+             "eor %0, %0, %1, lsr #8  \n\t"
+             : "+r"(x), "=&r"(t));
+#endif /* HAVE_ARMV6_INLINE */
+    return x;
+}
+#endif /* AV_GCC_VERSION_AT_MOST(4,4) */
+
+#endif /* __ARMCC_VERSION */
+
+#endif /* AVUTIL_ARM_BSWAP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/cpu.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/cpu.c
new file mode 100644
index 000000000..81e85e252
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/cpu.c
@@ -0,0 +1,170 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/cpu.h"
+#include "libavutil/cpu_internal.h"
+#include "config.h"
+
+#define CORE_FLAG(f) \
+    (AV_CPU_FLAG_ ## f * (HAVE_ ## f ## _EXTERNAL || HAVE_ ## f ## _INLINE))
+
+#define CORE_CPU_FLAGS                          \
+    (CORE_FLAG(ARMV5TE) |                       \
+     CORE_FLAG(ARMV6)   |                       \
+     CORE_FLAG(ARMV6T2) |                       \
+     CORE_FLAG(VFP)     |                       \
+     CORE_FLAG(VFPV3)   |                       \
+     CORE_FLAG(NEON))
+
+#if defined __linux__ || defined __ANDROID__
+
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include "libavutil/avstring.h"
+
+#define AT_HWCAP        16
+
+/* Relevant HWCAP values from kernel headers */
+#define HWCAP_VFP       (1 << 6)
+#define HWCAP_EDSP      (1 << 7)
+#define HWCAP_THUMBEE   (1 << 11)
+#define HWCAP_NEON      (1 << 12)
+#define HWCAP_VFPv3     (1 << 13)
+#define HWCAP_TLS       (1 << 15)
+
+static int get_hwcap(uint32_t *hwcap)
+{
+    struct { uint32_t a_type; uint32_t a_val; } auxv;
+    FILE *f = fopen("/proc/self/auxv", "r");
+    int err = -1;
+
+    if (!f)
+        return -1;
+
+    while (fread(&auxv, sizeof(auxv), 1, f) > 0) {
+        if (auxv.a_type == AT_HWCAP) {
+            *hwcap = auxv.a_val;
+            err = 0;
+            break;
+        }
+    }
+
+    fclose(f);
+    return err;
+}
+
+static int get_cpuinfo(uint32_t *hwcap)
+{
+    FILE *f = fopen("/proc/cpuinfo", "r");
+    char buf[200];
+
+    if (!f)
+        return -1;
+
+    *hwcap = 0;
+    while (fgets(buf, sizeof(buf), f)) {
+        if (av_strstart(buf, "Features", NULL)) {
+            if (strstr(buf, " edsp "))
+                *hwcap |= HWCAP_EDSP;
+            if (strstr(buf, " tls "))
+                *hwcap |= HWCAP_TLS;
+            if (strstr(buf, " thumbee "))
+                *hwcap |= HWCAP_THUMBEE;
+            if (strstr(buf, " vfp "))
+                *hwcap |= HWCAP_VFP;
+            if (strstr(buf, " vfpv3 "))
+                *hwcap |= HWCAP_VFPv3;
+            if (strstr(buf, " neon ") || strstr(buf, " asimd "))
+                *hwcap |= HWCAP_NEON;
+            if (strstr(buf, " fp ")) // Listed on 64 bit ARMv8 kernels
+                *hwcap |= HWCAP_VFP | HWCAP_VFPv3;
+            break;
+        }
+    }
+    fclose(f);
+    return 0;
+}
+
+int ff_get_cpu_flags_arm(void)
+{
+    int flags = CORE_CPU_FLAGS;
+    uint32_t hwcap;
+
+    if (get_hwcap(&hwcap) < 0)
+        if (get_cpuinfo(&hwcap) < 0)
+            return flags;
+
+#define check_cap(cap, flag) do {               \
+        if (hwcap & HWCAP_ ## cap)              \
+            flags |= AV_CPU_FLAG_ ## flag;      \
+    } while (0)
+
+    /* No flags explicitly indicate v6 or v6T2 so check others which
+       imply support. */
+    check_cap(EDSP,    ARMV5TE);
+    check_cap(TLS,     ARMV6);
+    check_cap(THUMBEE, ARMV6T2);
+    check_cap(VFP,     VFP);
+    check_cap(VFPv3,   VFPV3);
+    check_cap(NEON,    NEON);
+
+    /* The v6 checks above are not reliable so let higher flags
+       trickle down. */
+    if (flags & (AV_CPU_FLAG_VFPV3 | AV_CPU_FLAG_NEON))
+        flags |= AV_CPU_FLAG_ARMV6T2;
+    else if (flags & (AV_CPU_FLAG_ARMV6T2 | AV_CPU_FLAG_ARMV6))
+    /* Some functions use the 'setend' instruction which is deprecated on ARMv8
+     * and serializing on some ARMv7 cores. This ensures such functions
+     * are only enabled on ARMv6. */
+        flags |= AV_CPU_FLAG_SETEND;
+
+    if (flags & AV_CPU_FLAG_ARMV6T2)
+        flags |= AV_CPU_FLAG_ARMV6;
+
+    /* set the virtual VFPv2 vector mode flag */
+    if ((flags & AV_CPU_FLAG_VFP) && !(flags & (AV_CPU_FLAG_VFPV3 | AV_CPU_FLAG_NEON)))
+        flags |= AV_CPU_FLAG_VFP_VM;
+
+    return flags;
+}
+
+#else
+
+int ff_get_cpu_flags_arm(void)
+{
+    return AV_CPU_FLAG_ARMV5TE * HAVE_ARMV5TE |
+           AV_CPU_FLAG_ARMV6   * HAVE_ARMV6   |
+           AV_CPU_FLAG_ARMV6T2 * HAVE_ARMV6T2 |
+           AV_CPU_FLAG_VFP     * HAVE_VFP     |
+           AV_CPU_FLAG_VFPV3   * HAVE_VFPV3   |
+           AV_CPU_FLAG_NEON    * HAVE_NEON    |
+           AV_CPU_FLAG_SETEND  * !(HAVE_NEON | HAVE_VFPV3);
+}
+
+#endif
+
+size_t ff_get_cpu_max_align_arm(void)
+{
+    int flags = av_get_cpu_flags();
+
+    if (flags & AV_CPU_FLAG_NEON)
+        return 16;
+
+    return 8;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/cpu.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/cpu.h
new file mode 100644
index 000000000..1d6cc65dc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/cpu.h
@@ -0,0 +1,38 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_ARM_CPU_H
+#define AVUTIL_ARM_CPU_H
+
+#include "libavutil/cpu.h"
+#include "libavutil/cpu_internal.h"
+
+#define have_armv5te(flags) CPUEXT(flags, ARMV5TE)
+#define have_armv6(flags)   CPUEXT(flags, ARMV6)
+#define have_armv6t2(flags) CPUEXT(flags, ARMV6T2)
+#define have_vfp(flags)     CPUEXT(flags, VFP)
+#define have_vfpv3(flags)   CPUEXT(flags, VFPV3)
+#define have_neon(flags)    CPUEXT(flags, NEON)
+#define have_setend(flags)  CPUEXT(flags, SETEND)
+
+/* some functions use the VFPv2 vector mode which is deprecated in ARMv7-A
+ * and might trap on such CPU depending on the OS configuration */
+#define have_vfp_vm(flags)                                              \
+    (HAVE_VFP && ((flags) & AV_CPU_FLAG_VFP_VM))
+
+#endif /* AVUTIL_ARM_CPU_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/float_dsp_arm.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/float_dsp_arm.h
new file mode 100644
index 000000000..fe311cc0d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/float_dsp_arm.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_ARM_FLOAT_DSP_ARM_H
+#define AVUTIL_ARM_FLOAT_DSP_ARM_H
+
+#include "libavutil/float_dsp.h"
+
+void ff_float_dsp_init_vfp(AVFloatDSPContext *fdsp, int cpu_flags);
+void ff_float_dsp_init_neon(AVFloatDSPContext *fdsp);
+
+#endif /* AVUTIL_ARM_FLOAT_DSP_ARM_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/float_dsp_init_arm.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/float_dsp_init_arm.c
new file mode 100644
index 000000000..678762862
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/float_dsp_init_arm.c
@@ -0,0 +1,32 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/float_dsp.h"
+#include "cpu.h"
+#include "float_dsp_arm.h"
+
+av_cold void ff_float_dsp_init_arm(AVFloatDSPContext *fdsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_vfp(cpu_flags))
+        ff_float_dsp_init_vfp(fdsp, cpu_flags);
+    if (have_neon(cpu_flags))
+        ff_float_dsp_init_neon(fdsp);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/float_dsp_init_neon.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/float_dsp_init_neon.c
new file mode 100644
index 000000000..689aa77c7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/float_dsp_init_neon.c
@@ -0,0 +1,59 @@
+/*
+ * ARM NEON optimised Float DSP functions
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/float_dsp.h"
+#include "float_dsp_arm.h"
+
+void ff_vector_fmul_neon(float *dst, const float *src0, const float *src1, int len);
+
+void ff_vector_fmac_scalar_neon(float *dst, const float *src, float mul,
+                                int len);
+
+void ff_vector_fmul_scalar_neon(float *dst, const float *src, float mul,
+                                int len);
+
+void ff_vector_fmul_window_neon(float *dst, const float *src0,
+                                const float *src1, const float *win, int len);
+
+void ff_vector_fmul_add_neon(float *dst, const float *src0, const float *src1,
+                             const float *src2, int len);
+
+void ff_vector_fmul_reverse_neon(float *dst, const float *src0,
+                                 const float *src1, int len);
+
+void ff_butterflies_float_neon(float *v1, float *v2, int len);
+
+float ff_scalarproduct_float_neon(const float *v1, const float *v2, int len);
+
+av_cold void ff_float_dsp_init_neon(AVFloatDSPContext *fdsp)
+{
+    fdsp->vector_fmul = ff_vector_fmul_neon;
+    fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_neon;
+    fdsp->vector_fmul_scalar = ff_vector_fmul_scalar_neon;
+    fdsp->vector_fmul_window = ff_vector_fmul_window_neon;
+    fdsp->vector_fmul_add    = ff_vector_fmul_add_neon;
+    fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_neon;
+    fdsp->butterflies_float = ff_butterflies_float_neon;
+    fdsp->scalarproduct_float = ff_scalarproduct_float_neon;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/float_dsp_init_vfp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/float_dsp_init_vfp.c
new file mode 100644
index 000000000..05873e7e3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/float_dsp_init_vfp.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2008 Siarhei Siamashka <ssvb@users.sourceforge.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/float_dsp.h"
+#include "cpu.h"
+#include "float_dsp_arm.h"
+
+void ff_vector_fmul_vfp(float *dst, const float *src0, const float *src1,
+                        int len);
+
+void ff_vector_fmul_window_vfp(float *dst, const float *src0,
+                               const float *src1, const float *win, int len);
+
+void ff_vector_fmul_reverse_vfp(float *dst, const float *src0,
+                                const float *src1, int len);
+
+void ff_butterflies_float_vfp(float *av_restrict v1, float *av_restrict v2, int len);
+
+av_cold void ff_float_dsp_init_vfp(AVFloatDSPContext *fdsp, int cpu_flags)
+{
+    if (have_vfp_vm(cpu_flags)) {
+        fdsp->vector_fmul = ff_vector_fmul_vfp;
+        fdsp->vector_fmul_window = ff_vector_fmul_window_vfp;
+    }
+    fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_vfp;
+    if (have_vfp_vm(cpu_flags))
+        fdsp->butterflies_float = ff_butterflies_float_vfp;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/intmath.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/intmath.h
new file mode 100644
index 000000000..5311a7d52
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/intmath.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_ARM_INTMATH_H
+#define AVUTIL_ARM_INTMATH_H
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+
+#if HAVE_INLINE_ASM
+
+#if HAVE_ARMV6_INLINE
+
+#define av_clip_uint8 av_clip_uint8_arm
+static av_always_inline av_const int av_clip_uint8_arm(int a)
+{
+    int x;
+    __asm__ ("usat %0, #8,  %1" : "=r"(x) : "r"(a));
+    return x;
+}
+
+#define av_clip_int8 av_clip_int8_arm
+static av_always_inline av_const int av_clip_int8_arm(int a)
+{
+    int x;
+    __asm__ ("ssat %0, #8,  %1" : "=r"(x) : "r"(a));
+    return x;
+}
+
+#define av_clip_uint16 av_clip_uint16_arm
+static av_always_inline av_const int av_clip_uint16_arm(int a)
+{
+    int x;
+    __asm__ ("usat %0, #16, %1" : "=r"(x) : "r"(a));
+    return x;
+}
+
+#define av_clip_int16 av_clip_int16_arm
+static av_always_inline av_const int av_clip_int16_arm(int a)
+{
+    int x;
+    __asm__ ("ssat %0, #16, %1" : "=r"(x) : "r"(a));
+    return x;
+}
+
+#define av_clip_intp2 av_clip_intp2_arm
+static av_always_inline av_const int av_clip_intp2_arm(int a, int p)
+{
+    unsigned x;
+    __asm__ ("ssat %0, %2, %1" : "=r"(x) : "r"(a), "i"(p+1));
+    return x;
+}
+
+#define av_clip_uintp2 av_clip_uintp2_arm
+static av_always_inline av_const unsigned av_clip_uintp2_arm(int a, int p)
+{
+    unsigned x;
+    __asm__ ("usat %0, %2, %1" : "=r"(x) : "r"(a), "i"(p));
+    return x;
+}
+
+#define av_sat_add32 av_sat_add32_arm
+static av_always_inline int av_sat_add32_arm(int a, int b)
+{
+    int r;
+    __asm__ ("qadd %0, %1, %2" : "=r"(r) : "r"(a), "r"(b));
+    return r;
+}
+
+#define av_sat_dadd32 av_sat_dadd32_arm
+static av_always_inline int av_sat_dadd32_arm(int a, int b)
+{
+    int r;
+    __asm__ ("qdadd %0, %1, %2" : "=r"(r) : "r"(a), "r"(b));
+    return r;
+}
+
+#define av_sat_sub32 av_sat_sub32_arm
+static av_always_inline int av_sat_sub32_arm(int a, int b)
+{
+    int r;
+    __asm__ ("qsub %0, %1, %2" : "=r"(r) : "r"(a), "r"(b));
+    return r;
+}
+
+#define av_sat_dsub32 av_sat_dsub32_arm
+static av_always_inline int av_sat_dsub32_arm(int a, int b)
+{
+    int r;
+    __asm__ ("qdsub %0, %1, %2" : "=r"(r) : "r"(a), "r"(b));
+    return r;
+}
+
+#endif /* HAVE_ARMV6_INLINE */
+
+#if HAVE_ASM_MOD_Q
+
+#define av_clipl_int32 av_clipl_int32_arm
+static av_always_inline av_const int32_t av_clipl_int32_arm(int64_t a)
+{
+    int x, y;
+    __asm__ ("adds   %1, %R2, %Q2, lsr #31  \n\t"
+             "itet   ne                     \n\t"
+             "mvnne  %1, #1<<31             \n\t"
+             "moveq  %0, %Q2                \n\t"
+             "eorne  %0, %1,  %R2, asr #31  \n\t"
+             : "=r"(x), "=&r"(y) : "r"(a) : "cc");
+    return x;
+}
+
+#endif /* HAVE_ASM_MOD_Q */
+
+#endif /* HAVE_INLINE_ASM */
+
+#endif /* AVUTIL_ARM_INTMATH_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/intreadwrite.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/intreadwrite.h
new file mode 100644
index 000000000..60fc860cb
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/intreadwrite.h
@@ -0,0 +1,91 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_ARM_INTREADWRITE_H
+#define AVUTIL_ARM_INTREADWRITE_H
+
+#include <stdint.h>
+#include "config.h"
+#include "libavutil/attributes.h"
+
+#if HAVE_FAST_UNALIGNED && HAVE_INLINE_ASM && AV_GCC_VERSION_AT_MOST(4,6)
+
+#define AV_RN16 AV_RN16
+static av_always_inline unsigned AV_RN16(const void *p)
+{
+    const uint8_t *q = p;
+    unsigned v;
+#if AV_GCC_VERSION_AT_MOST(4,5)
+    __asm__ ("ldrh %0, %1" : "=r"(v) : "m"(*(const uint16_t *)q));
+#elif defined __thumb__
+    __asm__ ("ldrh %0, %1" : "=r"(v) : "m"(q[0]), "m"(q[1]));
+#else
+    __asm__ ("ldrh %0, %1" : "=r"(v) : "Uq"(q[0]), "m"(q[1]));
+#endif
+    return v;
+}
+
+#define AV_WN16 AV_WN16
+static av_always_inline void AV_WN16(void *p, uint16_t v)
+{
+    __asm__ ("strh %1, %0" : "=m"(*(uint16_t *)p) : "r"(v));
+}
+
+#define AV_RN32 AV_RN32
+static av_always_inline uint32_t AV_RN32(const void *p)
+{
+    const struct __attribute__((packed)) { uint32_t v; } *q = p;
+    uint32_t v;
+    __asm__ ("ldr  %0, %1" : "=r"(v) : "m"(*q));
+    return v;
+}
+
+#define AV_WN32 AV_WN32
+static av_always_inline void AV_WN32(void *p, uint32_t v)
+{
+    __asm__ ("str  %1, %0" : "=m"(*(uint32_t *)p) : "r"(v));
+}
+
+#if HAVE_ASM_MOD_Q
+
+#define AV_RN64 AV_RN64
+static av_always_inline uint64_t AV_RN64(const void *p)
+{
+    const struct __attribute__((packed)) { uint32_t v; } *q = p;
+    uint64_t v;
+    __asm__ ("ldr   %Q0, %1  \n\t"
+             "ldr   %R0, %2  \n\t"
+             : "=&r"(v)
+             : "m"(q[0]), "m"(q[1]));
+    return v;
+}
+
+#define AV_WN64 AV_WN64
+static av_always_inline void AV_WN64(void *p, uint64_t v)
+{
+    __asm__ ("str  %Q2, %0  \n\t"
+             "str  %R2, %1  \n\t"
+             : "=m"(*(uint32_t*)p), "=m"(*((uint32_t*)p+1))
+             : "r"(v));
+}
+
+#endif /* HAVE_ASM_MOD_Q */
+
+#endif /* HAVE_INLINE_ASM */
+
+#endif /* AVUTIL_ARM_INTREADWRITE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/neontest.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/neontest.h
new file mode 100644
index 000000000..d75ab8380
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/neontest.h
@@ -0,0 +1,67 @@
+/*
+ * check NEON registers for clobbering
+ * Copyright (c) 2008 Ramiro Polla <ramiro.polla@gmail.com>
+ * Copyright (c) 2013 Martin Storsjo
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_ARM_NEONTEST_H
+#define AVUTIL_ARM_NEONTEST_H
+
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+
+#include "libavutil/bswap.h"
+
+#define storeneonregs(mem)                \
+    __asm__ volatile(                     \
+        "vstm %0, {d8-d15}\n\t"           \
+        :: "r"(mem) : "memory")
+
+#define testneonclobbers(func, ctx, ...)                        \
+    uint64_t neon[2][8];                                        \
+    int ret;                                                    \
+    storeneonregs(neon[0]);                                     \
+    ret = __real_ ## func(ctx, __VA_ARGS__);                    \
+    storeneonregs(neon[1]);                                     \
+    if (memcmp(neon[0], neon[1], sizeof(neon[0]))) {            \
+        int i;                                                  \
+        av_log(ctx, AV_LOG_ERROR,                               \
+               "NEON REGS CLOBBERED IN %s!\n", #func);          \
+        for (i = 0; i < 8; i ++)                                \
+            if (neon[0][i] != neon[1][i]) {                     \
+                av_log(ctx, AV_LOG_ERROR,                       \
+                       "d%-2d = %016"PRIx64"\n",                \
+                       8 + i, av_bswap64(neon[0][i]));          \
+                av_log(ctx, AV_LOG_ERROR,                       \
+                       "   -> %016"PRIx64"\n",                  \
+                       av_bswap64(neon[1][i]));                 \
+            }                                                   \
+        abort();                                                \
+    }                                                           \
+    return ret
+
+#define wrap(func)      \
+int __real_ ## func;    \
+int __wrap_ ## func;    \
+int __wrap_ ## func
+
+#endif /* AVUTIL_ARM_NEONTEST_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/timer.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/timer.h
new file mode 100644
index 000000000..5e8bc8edd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/arm/timer.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_ARM_TIMER_H
+#define AVUTIL_ARM_TIMER_H
+
+#include <stdint.h>
+#include "config.h"
+
+#if HAVE_INLINE_ASM && defined(__ARM_ARCH_7A__)
+
+#define AV_READ_TIME read_time
+
+static inline uint64_t read_time(void)
+{
+    unsigned cc;
+    __asm__ volatile ("mrc p15, 0, %0, c9, c13, 0" : "=r"(cc));
+    return cc;
+}
+
+#endif /* HAVE_INLINE_ASM && __ARM_ARCH_7A__ */
+
+#endif /* AVUTIL_ARM_TIMER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/attributes.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/attributes.h
new file mode 100644
index 000000000..ced108aa2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/attributes.h
@@ -0,0 +1,167 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Macro definitions for various function/variable attributes
+ */
+
+#ifndef AVUTIL_ATTRIBUTES_H
+#define AVUTIL_ATTRIBUTES_H
+
+#ifdef __GNUC__
+#    define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > (x) || __GNUC__ == (x) && __GNUC_MINOR__ >= (y))
+#    define AV_GCC_VERSION_AT_MOST(x,y)  (__GNUC__ < (x) || __GNUC__ == (x) && __GNUC_MINOR__ <= (y))
+#else
+#    define AV_GCC_VERSION_AT_LEAST(x,y) 0
+#    define AV_GCC_VERSION_AT_MOST(x,y)  0
+#endif
+
+#ifndef av_always_inline
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+#    define av_always_inline __attribute__((always_inline)) inline
+#elif defined(_MSC_VER)
+#    define av_always_inline __forceinline
+#else
+#    define av_always_inline inline
+#endif
+#endif
+
+#ifndef av_extern_inline
+#if defined(__ICL) && __ICL >= 1210 || defined(__GNUC_STDC_INLINE__)
+#    define av_extern_inline extern inline
+#else
+#    define av_extern_inline inline
+#endif
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(3,4)
+#    define av_warn_unused_result __attribute__((warn_unused_result))
+#else
+#    define av_warn_unused_result
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+#    define av_noinline __attribute__((noinline))
+#elif defined(_MSC_VER)
+#    define av_noinline __declspec(noinline)
+#else
+#    define av_noinline
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(3,1) || defined(__clang__)
+#    define av_pure __attribute__((pure))
+#else
+#    define av_pure
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(2,6) || defined(__clang__)
+#    define av_const __attribute__((const))
+#else
+#    define av_const
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(4,3) || defined(__clang__)
+#    define av_cold __attribute__((cold))
+#else
+#    define av_cold
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(4,1) && !defined(__llvm__)
+#    define av_flatten __attribute__((flatten))
+#else
+#    define av_flatten
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+#    define attribute_deprecated __attribute__((deprecated))
+#elif defined(_MSC_VER)
+#    define attribute_deprecated __declspec(deprecated)
+#else
+#    define attribute_deprecated
+#endif
+
+/**
+ * Disable warnings about deprecated features
+ * This is useful for sections of code kept for backward compatibility and
+ * scheduled for removal.
+ */
+#ifndef AV_NOWARN_DEPRECATED
+#if AV_GCC_VERSION_AT_LEAST(4,6)
+#    define AV_NOWARN_DEPRECATED(code) \
+        _Pragma("GCC diagnostic push") \
+        _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") \
+        code \
+        _Pragma("GCC diagnostic pop")
+#elif defined(_MSC_VER)
+#    define AV_NOWARN_DEPRECATED(code) \
+        __pragma(warning(push)) \
+        __pragma(warning(disable : 4996)) \
+        code; \
+        __pragma(warning(pop))
+#else
+#    define AV_NOWARN_DEPRECATED(code) code
+#endif
+#endif
+
+#if defined(__GNUC__) || defined(__clang__)
+#    define av_unused __attribute__((unused))
+#else
+#    define av_unused
+#endif
+
+/**
+ * Mark a variable as used and prevent the compiler from optimizing it
+ * away.  This is useful for variables accessed only from inline
+ * assembler without the compiler being aware.
+ */
+#if AV_GCC_VERSION_AT_LEAST(3,1) || defined(__clang__)
+#    define av_used __attribute__((used))
+#else
+#    define av_used
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(3,3) || defined(__clang__)
+#   define av_alias __attribute__((may_alias))
+#else
+#   define av_alias
+#endif
+
+#if (defined(__GNUC__) || defined(__clang__)) && !defined(__INTEL_COMPILER)
+#    define av_uninit(x) x=x
+#else
+#    define av_uninit(x) x
+#endif
+
+#if defined(__GNUC__) || defined(__clang__)
+#    define av_builtin_constant_p __builtin_constant_p
+#    define av_printf_format(fmtpos, attrpos) __attribute__((__format__(__printf__, fmtpos, attrpos)))
+#else
+#    define av_builtin_constant_p(x) 0
+#    define av_printf_format(fmtpos, attrpos)
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(2,5) || defined(__clang__)
+#    define av_noreturn __attribute__((noreturn))
+#else
+#    define av_noreturn
+#endif
+
+#endif /* AVUTIL_ATTRIBUTES_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/audio_fifo.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/audio_fifo.c
new file mode 100644
index 000000000..1bf75ced5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/audio_fifo.c
@@ -0,0 +1,236 @@
+/*
+ * Audio FIFO
+ * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Audio FIFO
+ */
+
+#include "avutil.h"
+#include "audio_fifo.h"
+#include "common.h"
+#include "fifo.h"
+#include "mem.h"
+#include "samplefmt.h"
+
+struct AVAudioFifo {
+    AVFifoBuffer **buf;             /**< single buffer for interleaved, per-channel buffers for planar */
+    int nb_buffers;                 /**< number of buffers */
+    int nb_samples;                 /**< number of samples currently in the FIFO */
+    int allocated_samples;          /**< current allocated size, in samples */
+
+    int channels;                   /**< number of channels */
+    enum AVSampleFormat sample_fmt; /**< sample format */
+    int sample_size;                /**< size, in bytes, of one sample in a buffer */
+};
+
+void av_audio_fifo_free(AVAudioFifo *af)
+{
+    if (af) {
+        if (af->buf) {
+            int i;
+            for (i = 0; i < af->nb_buffers; i++) {
+                av_fifo_freep(&af->buf[i]);
+            }
+            av_freep(&af->buf);
+        }
+        av_free(af);
+    }
+}
+
+AVAudioFifo *av_audio_fifo_alloc(enum AVSampleFormat sample_fmt, int channels,
+                                 int nb_samples)
+{
+    AVAudioFifo *af;
+    int buf_size, i;
+
+    /* get channel buffer size (also validates parameters) */
+    if (av_samples_get_buffer_size(&buf_size, channels, nb_samples, sample_fmt, 1) < 0)
+        return NULL;
+
+    af = av_mallocz(sizeof(*af));
+    if (!af)
+        return NULL;
+
+    af->channels    = channels;
+    af->sample_fmt  = sample_fmt;
+    af->sample_size = buf_size / nb_samples;
+    af->nb_buffers  = av_sample_fmt_is_planar(sample_fmt) ? channels : 1;
+
+    af->buf = av_mallocz_array(af->nb_buffers, sizeof(*af->buf));
+    if (!af->buf)
+        goto error;
+
+    for (i = 0; i < af->nb_buffers; i++) {
+        af->buf[i] = av_fifo_alloc(buf_size);
+        if (!af->buf[i])
+            goto error;
+    }
+    af->allocated_samples = nb_samples;
+
+    return af;
+
+error:
+    av_audio_fifo_free(af);
+    return NULL;
+}
+
+int av_audio_fifo_realloc(AVAudioFifo *af, int nb_samples)
+{
+    int i, ret, buf_size;
+
+    if ((ret = av_samples_get_buffer_size(&buf_size, af->channels, nb_samples,
+                                          af->sample_fmt, 1)) < 0)
+        return ret;
+
+    for (i = 0; i < af->nb_buffers; i++) {
+        if ((ret = av_fifo_realloc2(af->buf[i], buf_size)) < 0)
+            return ret;
+    }
+    af->allocated_samples = nb_samples;
+    return 0;
+}
+
+int av_audio_fifo_write(AVAudioFifo *af, void **data, int nb_samples)
+{
+    int i, ret, size;
+
+    /* automatically reallocate buffers if needed */
+    if (av_audio_fifo_space(af) < nb_samples) {
+        int current_size = av_audio_fifo_size(af);
+        /* check for integer overflow in new size calculation */
+        if (INT_MAX / 2 - current_size < nb_samples)
+            return AVERROR(EINVAL);
+        /* reallocate buffers */
+        if ((ret = av_audio_fifo_realloc(af, 2 * (current_size + nb_samples))) < 0)
+            return ret;
+    }
+
+    size = nb_samples * af->sample_size;
+    for (i = 0; i < af->nb_buffers; i++) {
+        ret = av_fifo_generic_write(af->buf[i], data[i], size, NULL);
+        if (ret != size)
+            return AVERROR_BUG;
+    }
+    af->nb_samples += nb_samples;
+
+    return nb_samples;
+}
+
+int av_audio_fifo_peek(AVAudioFifo *af, void **data, int nb_samples)
+{
+    int i, ret, size;
+
+    if (nb_samples < 0)
+        return AVERROR(EINVAL);
+    nb_samples = FFMIN(nb_samples, af->nb_samples);
+    if (!nb_samples)
+        return 0;
+
+    size = nb_samples * af->sample_size;
+    for (i = 0; i < af->nb_buffers; i++) {
+        if ((ret = av_fifo_generic_peek(af->buf[i], data[i], size, NULL)) < 0)
+            return AVERROR_BUG;
+    }
+
+    return nb_samples;
+}
+
+int av_audio_fifo_peek_at(AVAudioFifo *af, void **data, int nb_samples, int offset)
+{
+    int i, ret, size;
+
+    if (offset < 0 || offset >= af->nb_samples)
+        return AVERROR(EINVAL);
+    if (nb_samples < 0)
+        return AVERROR(EINVAL);
+    nb_samples = FFMIN(nb_samples, af->nb_samples);
+    if (!nb_samples)
+        return 0;
+    if (offset > af->nb_samples - nb_samples)
+        return AVERROR(EINVAL);
+
+    offset *= af->sample_size;
+    size = nb_samples * af->sample_size;
+    for (i = 0; i < af->nb_buffers; i++) {
+        if ((ret = av_fifo_generic_peek_at(af->buf[i], data[i], offset, size, NULL)) < 0)
+            return AVERROR_BUG;
+    }
+
+    return nb_samples;
+}
+
+int av_audio_fifo_read(AVAudioFifo *af, void **data, int nb_samples)
+{
+    int i, size;
+
+    if (nb_samples < 0)
+        return AVERROR(EINVAL);
+    nb_samples = FFMIN(nb_samples, af->nb_samples);
+    if (!nb_samples)
+        return 0;
+
+    size = nb_samples * af->sample_size;
+    for (i = 0; i < af->nb_buffers; i++) {
+        if (av_fifo_generic_read(af->buf[i], data[i], size, NULL) < 0)
+            return AVERROR_BUG;
+    }
+    af->nb_samples -= nb_samples;
+
+    return nb_samples;
+}
+
+int av_audio_fifo_drain(AVAudioFifo *af, int nb_samples)
+{
+    int i, size;
+
+    if (nb_samples < 0)
+        return AVERROR(EINVAL);
+    nb_samples = FFMIN(nb_samples, af->nb_samples);
+
+    if (nb_samples) {
+        size = nb_samples * af->sample_size;
+        for (i = 0; i < af->nb_buffers; i++)
+            av_fifo_drain(af->buf[i], size);
+        af->nb_samples -= nb_samples;
+    }
+    return 0;
+}
+
+void av_audio_fifo_reset(AVAudioFifo *af)
+{
+    int i;
+
+    for (i = 0; i < af->nb_buffers; i++)
+        av_fifo_reset(af->buf[i]);
+
+    af->nb_samples = 0;
+}
+
+int av_audio_fifo_size(AVAudioFifo *af)
+{
+    return af->nb_samples;
+}
+
+int av_audio_fifo_space(AVAudioFifo *af)
+{
+    return af->allocated_samples - af->nb_samples;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/audio_fifo.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/audio_fifo.h
new file mode 100644
index 000000000..d8a9194a8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/audio_fifo.h
@@ -0,0 +1,187 @@
+/*
+ * Audio FIFO
+ * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Audio FIFO Buffer
+ */
+
+#ifndef AVUTIL_AUDIO_FIFO_H
+#define AVUTIL_AUDIO_FIFO_H
+
+#include "avutil.h"
+#include "fifo.h"
+#include "samplefmt.h"
+
+/**
+ * @addtogroup lavu_audio
+ * @{
+ *
+ * @defgroup lavu_audiofifo Audio FIFO Buffer
+ * @{
+ */
+
+/**
+ * Context for an Audio FIFO Buffer.
+ *
+ * - Operates at the sample level rather than the byte level.
+ * - Supports multiple channels with either planar or packed sample format.
+ * - Automatic reallocation when writing to a full buffer.
+ */
+typedef struct AVAudioFifo AVAudioFifo;
+
+/**
+ * Free an AVAudioFifo.
+ *
+ * @param af  AVAudioFifo to free
+ */
+void av_audio_fifo_free(AVAudioFifo *af);
+
+/**
+ * Allocate an AVAudioFifo.
+ *
+ * @param sample_fmt  sample format
+ * @param channels    number of channels
+ * @param nb_samples  initial allocation size, in samples
+ * @return            newly allocated AVAudioFifo, or NULL on error
+ */
+AVAudioFifo *av_audio_fifo_alloc(enum AVSampleFormat sample_fmt, int channels,
+                                 int nb_samples);
+
+/**
+ * Reallocate an AVAudioFifo.
+ *
+ * @param af          AVAudioFifo to reallocate
+ * @param nb_samples  new allocation size, in samples
+ * @return            0 if OK, or negative AVERROR code on failure
+ */
+av_warn_unused_result
+int av_audio_fifo_realloc(AVAudioFifo *af, int nb_samples);
+
+/**
+ * Write data to an AVAudioFifo.
+ *
+ * The AVAudioFifo will be reallocated automatically if the available space
+ * is less than nb_samples.
+ *
+ * @see enum AVSampleFormat
+ * The documentation for AVSampleFormat describes the data layout.
+ *
+ * @param af          AVAudioFifo to write to
+ * @param data        audio data plane pointers
+ * @param nb_samples  number of samples to write
+ * @return            number of samples actually written, or negative AVERROR
+ *                    code on failure. If successful, the number of samples
+ *                    actually written will always be nb_samples.
+ */
+int av_audio_fifo_write(AVAudioFifo *af, void **data, int nb_samples);
+
+/**
+ * Peek data from an AVAudioFifo.
+ *
+ * @see enum AVSampleFormat
+ * The documentation for AVSampleFormat describes the data layout.
+ *
+ * @param af          AVAudioFifo to read from
+ * @param data        audio data plane pointers
+ * @param nb_samples  number of samples to peek
+ * @return            number of samples actually peek, or negative AVERROR code
+ *                    on failure. The number of samples actually peek will not
+ *                    be greater than nb_samples, and will only be less than
+ *                    nb_samples if av_audio_fifo_size is less than nb_samples.
+ */
+int av_audio_fifo_peek(AVAudioFifo *af, void **data, int nb_samples);
+
+/**
+ * Peek data from an AVAudioFifo.
+ *
+ * @see enum AVSampleFormat
+ * The documentation for AVSampleFormat describes the data layout.
+ *
+ * @param af          AVAudioFifo to read from
+ * @param data        audio data plane pointers
+ * @param nb_samples  number of samples to peek
+ * @param offset      offset from current read position
+ * @return            number of samples actually peek, or negative AVERROR code
+ *                    on failure. The number of samples actually peek will not
+ *                    be greater than nb_samples, and will only be less than
+ *                    nb_samples if av_audio_fifo_size is less than nb_samples.
+ */
+int av_audio_fifo_peek_at(AVAudioFifo *af, void **data, int nb_samples, int offset);
+
+/**
+ * Read data from an AVAudioFifo.
+ *
+ * @see enum AVSampleFormat
+ * The documentation for AVSampleFormat describes the data layout.
+ *
+ * @param af          AVAudioFifo to read from
+ * @param data        audio data plane pointers
+ * @param nb_samples  number of samples to read
+ * @return            number of samples actually read, or negative AVERROR code
+ *                    on failure. The number of samples actually read will not
+ *                    be greater than nb_samples, and will only be less than
+ *                    nb_samples if av_audio_fifo_size is less than nb_samples.
+ */
+int av_audio_fifo_read(AVAudioFifo *af, void **data, int nb_samples);
+
+/**
+ * Drain data from an AVAudioFifo.
+ *
+ * Removes the data without reading it.
+ *
+ * @param af          AVAudioFifo to drain
+ * @param nb_samples  number of samples to drain
+ * @return            0 if OK, or negative AVERROR code on failure
+ */
+int av_audio_fifo_drain(AVAudioFifo *af, int nb_samples);
+
+/**
+ * Reset the AVAudioFifo buffer.
+ *
+ * This empties all data in the buffer.
+ *
+ * @param af  AVAudioFifo to reset
+ */
+void av_audio_fifo_reset(AVAudioFifo *af);
+
+/**
+ * Get the current number of samples in the AVAudioFifo available for reading.
+ *
+ * @param af  the AVAudioFifo to query
+ * @return    number of samples available for reading
+ */
+int av_audio_fifo_size(AVAudioFifo *af);
+
+/**
+ * Get the current number of samples in the AVAudioFifo available for writing.
+ *
+ * @param af  the AVAudioFifo to query
+ * @return    number of samples available for writing
+ */
+int av_audio_fifo_space(AVAudioFifo *af);
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* AVUTIL_AUDIO_FIFO_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avassert.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avassert.h
new file mode 100644
index 000000000..9abeadea4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avassert.h
@@ -0,0 +1,75 @@
+/*
+ * copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * simple assert() macros that are a bit more flexible than ISO C assert().
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#ifndef AVUTIL_AVASSERT_H
+#define AVUTIL_AVASSERT_H
+
+#include <stdlib.h>
+#include "avutil.h"
+#include "log.h"
+
+/**
+ * assert() equivalent, that is always enabled.
+ */
+#define av_assert0(cond) do {                                           \
+    if (!(cond)) {                                                      \
+        av_log(NULL, AV_LOG_PANIC, "Assertion %s failed at %s:%d\n",    \
+               AV_STRINGIFY(cond), __FILE__, __LINE__);                 \
+        abort();                                                        \
+    }                                                                   \
+} while (0)
+
+
+/**
+ * assert() equivalent, that does not lie in speed critical code.
+ * These asserts() thus can be enabled without fearing speed loss.
+ */
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 0
+#define av_assert1(cond) av_assert0(cond)
+#else
+#define av_assert1(cond) ((void)0)
+#endif
+
+
+/**
+ * assert() equivalent, that does lie in speed critical code.
+ */
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1
+#define av_assert2(cond) av_assert0(cond)
+#define av_assert2_fpu() av_assert0_fpu()
+#else
+#define av_assert2(cond) ((void)0)
+#define av_assert2_fpu() ((void)0)
+#endif
+
+/**
+ * Assert that floating point operations can be executed.
+ *
+ * This will av_assert0() that the cpu is not in MMX state on X86
+ */
+void av_assert0_fpu(void);
+
+#endif /* AVUTIL_AVASSERT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avconfig.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avconfig.h
new file mode 100644
index 000000000..c289fbb55
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avconfig.h
@@ -0,0 +1,6 @@
+/* Generated by ffmpeg configure */
+#ifndef AVUTIL_AVCONFIG_H
+#define AVUTIL_AVCONFIG_H
+#define AV_HAVE_BIGENDIAN 0
+#define AV_HAVE_FAST_UNALIGNED 1
+#endif /* AVUTIL_AVCONFIG_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avsscanf.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avsscanf.c
new file mode 100644
index 000000000..1c85412fd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avsscanf.c
@@ -0,0 +1,970 @@
+/*
+ * Copyright (c) 2005-2014 Rich Felker, et al.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <float.h>
+
+#include "config.h"
+#include "common.h"
+#include "mem.h"
+#include "avassert.h"
+#include "avstring.h"
+#include "bprint.h"
+
+typedef struct FFFILE {
+    size_t buf_size;
+    unsigned char *buf;
+    unsigned char *rpos, *rend;
+    unsigned char *shend;
+    ptrdiff_t shlim, shcnt;
+    void *cookie;
+    size_t (*read)(struct FFFILE *, unsigned char *, size_t);
+} FFFILE;
+
+#define SIZE_hh -2
+#define SIZE_h  -1
+#define SIZE_def 0
+#define SIZE_l   1
+#define SIZE_L   2
+#define SIZE_ll  3
+
+#define shcnt(f) ((f)->shcnt + ((f)->rpos - (f)->buf))
+
+static int fftoread(FFFILE *f)
+{
+    f->rpos = f->rend = f->buf + f->buf_size;
+    return 0;
+}
+
+static size_t ffstring_read(FFFILE *f, unsigned char *buf, size_t len)
+{
+    char *src = f->cookie;
+    size_t k = len+256;
+    char *end = memchr(src, 0, k);
+
+    if (end) k = end-src;
+    if (k < len) len = k;
+    memcpy(buf, src, len);
+    f->rpos = (void *)(src+len);
+    f->rend = (void *)(src+k);
+    f->cookie = src+k;
+
+    return len;
+}
+
+static int ffuflow(FFFILE *f)
+{
+    unsigned char c;
+    if (!fftoread(f) && f->read(f, &c, 1)==1) return c;
+    return EOF;
+}
+
+static void ffshlim(FFFILE *f, ptrdiff_t lim)
+{
+    f->shlim = lim;
+    f->shcnt = f->buf - f->rpos;
+    /* If lim is nonzero, rend must be a valid pointer. */
+    if (lim && f->rend - f->rpos > lim)
+        f->shend = f->rpos + lim;
+    else
+        f->shend = f->rend;
+}
+
+static int ffshgetc(FFFILE *f)
+{
+    int c;
+    ptrdiff_t cnt = shcnt(f);
+    if (f->shlim && cnt >= f->shlim || (c=ffuflow(f)) < 0) {
+        f->shcnt = f->buf - f->rpos + cnt;
+        f->shend = 0;
+        return EOF;
+    }
+    cnt++;
+    if (f->shlim && f->rend - f->rpos > f->shlim - cnt)
+        f->shend = f->rpos + (f->shlim - cnt);
+    else
+        f->shend = f->rend;
+    f->shcnt = f->buf - f->rpos + cnt;
+    if (f->rpos[-1] != c) f->rpos[-1] = c;
+    return c;
+}
+
+#define shlim(f, lim) ffshlim((f), (lim))
+#define shgetc(f) (((f)->rpos != (f)->shend) ? *(f)->rpos++ : ffshgetc(f))
+#define shunget(f) ((f)->shend ? (void)(f)->rpos-- : (void)0)
+
+static const unsigned char table[] = { -1,
+    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+    0, 1, 2, 3, 4, 5, 6, 7, 8, 9,-1,-1,-1,-1,-1,-1,
+    -1,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,
+    25,26,27,28,29,30,31,32,33,34,35,-1,-1,-1,-1,-1,
+    -1,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,
+    25,26,27,28,29,30,31,32,33,34,35,-1,-1,-1,-1,-1,
+    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+    -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+};
+
+static unsigned long long ffintscan(FFFILE *f, unsigned base, int pok, unsigned long long lim)
+{
+    const unsigned char *val = table+1;
+    int c, neg=0;
+    unsigned x;
+    unsigned long long y;
+    if (base > 36 || base == 1) {
+        errno = EINVAL;
+        return 0;
+    }
+    while (av_isspace((c=shgetc(f))));
+    if (c=='+' || c=='-') {
+        neg = -(c=='-');
+        c = shgetc(f);
+    }
+    if ((base == 0 || base == 16) && c=='0') {
+        c = shgetc(f);
+        if ((c|32)=='x') {
+            c = shgetc(f);
+            if (val[c]>=16) {
+                shunget(f);
+                if (pok) shunget(f);
+                else shlim(f, 0);
+                return 0;
+            }
+            base = 16;
+        } else if (base == 0) {
+            base = 8;
+        }
+    } else {
+        if (base == 0) base = 10;
+        if (val[c] >= base) {
+            shunget(f);
+            shlim(f, 0);
+            errno = EINVAL;
+            return 0;
+        }
+    }
+    if (base == 10) {
+        for (x=0; c-'0'<10U && x<=UINT_MAX/10-1; c=shgetc(f))
+            x = x*10 + (c-'0');
+        for (y=x; c-'0'<10U && y<=ULLONG_MAX/10 && 10*y<=ULLONG_MAX-(c-'0'); c=shgetc(f))
+            y = y*10 + (c-'0');
+        if (c-'0'>=10U) goto done;
+    } else if (!(base & base-1)) {
+        int bs = "\0\1\2\4\7\3\6\5"[(0x17*base)>>5&7];
+        for (x=0; val[c]<base && x<=UINT_MAX/32; c=shgetc(f))
+            x = x<<bs | val[c];
+        for (y=x; val[c]<base && y<=ULLONG_MAX>>bs; c=shgetc(f))
+            y = y<<bs | val[c];
+    } else {
+        for (x=0; val[c]<base && x<=UINT_MAX/36-1; c=shgetc(f))
+            x = x*base + val[c];
+        for (y=x; val[c]<base && y<=ULLONG_MAX/base && base*y<=ULLONG_MAX-val[c]; c=shgetc(f))
+            y = y*base + val[c];
+    }
+    if (val[c]<base) {
+        for (; val[c]<base; c=shgetc(f));
+        errno = ERANGE;
+        y = lim;
+        if (lim&1) neg = 0;
+    }
+done:
+    shunget(f);
+    if (y>=lim) {
+        if (!(lim&1) && !neg) {
+            errno = ERANGE;
+            return lim-1;
+        } else if (y>lim) {
+            errno = ERANGE;
+            return lim;
+        }
+    }
+    return (y^neg)-neg;
+}
+
+static long long scanexp(FFFILE *f, int pok)
+{
+    int c;
+    int x;
+    long long y;
+    int neg = 0;
+
+    c = shgetc(f);
+    if (c=='+' || c=='-') {
+        neg = (c=='-');
+        c = shgetc(f);
+        if (c-'0'>=10U && pok) shunget(f);
+    }
+    if (c-'0'>=10U) {
+        shunget(f);
+        return LLONG_MIN;
+    }
+    for (x=0; c-'0'<10U && x<INT_MAX/10; c = shgetc(f))
+        x = 10*x + c-'0';
+    for (y=x; c-'0'<10U && y<LLONG_MAX/100; c = shgetc(f))
+        y = 10*y + c-'0';
+    for (; c-'0'<10U; c = shgetc(f));
+    shunget(f);
+    return neg ? -y : y;
+}
+
+#define LD_B1B_DIG 2
+#define LD_B1B_MAX 9007199, 254740991
+#define KMAX 128
+#define MASK (KMAX-1)
+
+static double decfloat(FFFILE *f, int c, int bits, int emin, int sign, int pok)
+{
+    uint32_t x[KMAX];
+    static const uint32_t th[] = { LD_B1B_MAX };
+    int i, j, k, a, z;
+    long long lrp=0, dc=0;
+    long long e10=0;
+    int lnz = 0;
+    int gotdig = 0, gotrad = 0;
+    int rp;
+    int e2;
+    int emax = -emin-bits+3;
+    int denormal = 0;
+    double y;
+    double frac=0;
+    double bias=0;
+    static const int p10s[] = { 10, 100, 1000, 10000,
+        100000, 1000000, 10000000, 100000000 };
+
+    j=0;
+    k=0;
+
+    /* Don't let leading zeros consume buffer space */
+    for (; c=='0'; c = shgetc(f)) gotdig=1;
+    if (c=='.') {
+        gotrad = 1;
+        for (c = shgetc(f); c=='0'; c = shgetc(f)) gotdig=1, lrp--;
+    }
+
+    x[0] = 0;
+    for (; c-'0'<10U || c=='.'; c = shgetc(f)) {
+        if (c == '.') {
+            if (gotrad) break;
+            gotrad = 1;
+            lrp = dc;
+        } else if (k < KMAX-3) {
+            dc++;
+            if (c!='0') lnz = dc;
+            if (j) x[k] = x[k]*10 + c-'0';
+            else x[k] = c-'0';
+            if (++j==9) {
+                k++;
+                j=0;
+            }
+            gotdig=1;
+        } else {
+            dc++;
+            if (c!='0') {
+                lnz = (KMAX-4)*9;
+                x[KMAX-4] |= 1;
+            }
+        }
+    }
+    if (!gotrad) lrp=dc;
+
+    if (gotdig && (c|32)=='e') {
+        e10 = scanexp(f, pok);
+        if (e10 == LLONG_MIN) {
+            if (pok) {
+                shunget(f);
+            } else {
+                shlim(f, 0);
+                return 0;
+            }
+            e10 = 0;
+        }
+        lrp += e10;
+    } else if (c>=0) {
+        shunget(f);
+    }
+    if (!gotdig) {
+        errno = EINVAL;
+        shlim(f, 0);
+        return 0;
+    }
+
+    /* Handle zero specially to avoid nasty special cases later */
+    if (!x[0]) return sign * 0.0;
+
+    /* Optimize small integers (w/no exponent) and over/under-flow */
+    if (lrp==dc && dc<10 && (bits>30 || x[0]>>bits==0))
+        return sign * (double)x[0];
+    if (lrp > -emin/2) {
+        errno = ERANGE;
+        return sign * DBL_MAX * DBL_MAX;
+    }
+    if (lrp < emin-2*DBL_MANT_DIG) {
+        errno = ERANGE;
+        return sign * DBL_MIN * DBL_MIN;
+    }
+
+    /* Align incomplete final B1B digit */
+    if (j) {
+        for (; j<9; j++) x[k]*=10;
+        k++;
+        j=0;
+    }
+
+    a = 0;
+    z = k;
+    e2 = 0;
+    rp = lrp;
+
+    /* Optimize small to mid-size integers (even in exp. notation) */
+    if (lnz<9 && lnz<=rp && rp < 18) {
+        int bitlim;
+        if (rp == 9) return sign * (double)x[0];
+        if (rp < 9) return sign * (double)x[0] / p10s[8-rp];
+        bitlim = bits-3*(int)(rp-9);
+        if (bitlim>30 || x[0]>>bitlim==0)
+            return sign * (double)x[0] * p10s[rp-10];
+    }
+
+    /* Drop trailing zeros */
+    for (; !x[z-1]; z--);
+
+    /* Align radix point to B1B digit boundary */
+    if (rp % 9) {
+        int rpm9 = rp>=0 ? rp%9 : rp%9+9;
+        int p10 = p10s[8-rpm9];
+        uint32_t carry = 0;
+        for (k=a; k!=z; k++) {
+            uint32_t tmp = x[k] % p10;
+            x[k] = x[k]/p10 + carry;
+            carry = 1000000000/p10 * tmp;
+            if (k==a && !x[k]) {
+                a = (a+1 & MASK);
+                rp -= 9;
+            }
+        }
+        if (carry) x[z++] = carry;
+        rp += 9-rpm9;
+    }
+
+    /* Upscale until desired number of bits are left of radix point */
+    while (rp < 9*LD_B1B_DIG || (rp == 9*LD_B1B_DIG && x[a]<th[0])) {
+        uint32_t carry = 0;
+        e2 -= 29;
+        for (k=(z-1 & MASK); ; k=(k-1 & MASK)) {
+            uint64_t tmp = ((uint64_t)x[k] << 29) + carry;
+            if (tmp > 1000000000) {
+                carry = tmp / 1000000000;
+                x[k] = tmp % 1000000000;
+            } else {
+                carry = 0;
+                x[k] = tmp;
+            }
+            if (k==(z-1 & MASK) && k!=a && !x[k]) z = k;
+            if (k==a) break;
+        }
+        if (carry) {
+            rp += 9;
+            a = (a-1 & MASK);
+            if (a == z) {
+                z = (z-1 & MASK);
+                x[z-1 & MASK] |= x[z];
+            }
+            x[a] = carry;
+        }
+    }
+
+    /* Downscale until exactly number of bits are left of radix point */
+    for (;;) {
+        uint32_t carry = 0;
+        int sh = 1;
+        for (i=0; i<LD_B1B_DIG; i++) {
+            k = (a+i & MASK);
+            if (k == z || x[k] < th[i]) {
+                i=LD_B1B_DIG;
+                break;
+            }
+            if (x[a+i & MASK] > th[i]) break;
+        }
+        if (i==LD_B1B_DIG && rp==9*LD_B1B_DIG) break;
+        /* FIXME: find a way to compute optimal sh */
+        if (rp > 9+9*LD_B1B_DIG) sh = 9;
+        e2 += sh;
+        for (k=a; k!=z; k=(k+1 & MASK)) {
+            uint32_t tmp = x[k] & (1<<sh)-1;
+            x[k] = (x[k]>>sh) + carry;
+            carry = (1000000000>>sh) * tmp;
+            if (k==a && !x[k]) {
+                a = (a+1 & MASK);
+                i--;
+                rp -= 9;
+            }
+        }
+        if (carry) {
+            if ((z+1 & MASK) != a) {
+                x[z] = carry;
+                z = (z+1 & MASK);
+            } else x[z-1 & MASK] |= 1;
+        }
+    }
+
+    /* Assemble desired bits into floating point variable */
+    for (y=i=0; i<LD_B1B_DIG; i++) {
+        if ((a+i & MASK)==z) x[(z=(z+1 & MASK))-1] = 0;
+        y = 1000000000.0L * y + x[a+i & MASK];
+    }
+
+    y *= sign;
+
+    /* Limit precision for denormal results */
+    if (bits > DBL_MANT_DIG+e2-emin) {
+        bits = DBL_MANT_DIG+e2-emin;
+        if (bits<0) bits=0;
+        denormal = 1;
+    }
+
+    /* Calculate bias term to force rounding, move out lower bits */
+    if (bits < DBL_MANT_DIG) {
+        bias = copysign(scalbn(1, 2*DBL_MANT_DIG-bits-1), y);
+        frac = fmod(y, scalbn(1, DBL_MANT_DIG-bits));
+        y -= frac;
+        y += bias;
+    }
+
+    /* Process tail of decimal input so it can affect rounding */
+    if ((a+i & MASK) != z) {
+        uint32_t t = x[a+i & MASK];
+        if (t < 500000000 && (t || (a+i+1 & MASK) != z))
+            frac += 0.25*sign;
+        else if (t > 500000000)
+            frac += 0.75*sign;
+        else if (t == 500000000) {
+            if ((a+i+1 & MASK) == z)
+                frac += 0.5*sign;
+            else
+                frac += 0.75*sign;
+        }
+        if (DBL_MANT_DIG-bits >= 2 && !fmod(frac, 1))
+            frac++;
+    }
+
+    y += frac;
+    y -= bias;
+
+    if ((e2+DBL_MANT_DIG & INT_MAX) > emax-5) {
+        if (fabs(y) >= pow(2, DBL_MANT_DIG)) {
+            if (denormal && bits==DBL_MANT_DIG+e2-emin)
+                denormal = 0;
+            y *= 0.5;
+            e2++;
+        }
+        if (e2+DBL_MANT_DIG>emax || (denormal && frac))
+            errno = ERANGE;
+    }
+
+    return scalbn(y, e2);
+}
+
+static double hexfloat(FFFILE *f, int bits, int emin, int sign, int pok)
+{
+    uint32_t x = 0;
+    double y = 0;
+    double scale = 1;
+    double bias = 0;
+    int gottail = 0, gotrad = 0, gotdig = 0;
+    long long rp = 0;
+    long long dc = 0;
+    long long e2 = 0;
+    int d;
+    int c;
+
+    c = shgetc(f);
+
+    /* Skip leading zeros */
+    for (; c=='0'; c = shgetc(f))
+        gotdig = 1;
+
+    if (c=='.') {
+        gotrad = 1;
+        c = shgetc(f);
+        /* Count zeros after the radix point before significand */
+        for (rp=0; c=='0'; c = shgetc(f), rp--) gotdig = 1;
+    }
+
+    for (; c-'0'<10U || (c|32)-'a'<6U || c=='.'; c = shgetc(f)) {
+        if (c=='.') {
+            if (gotrad) break;
+            rp = dc;
+            gotrad = 1;
+        } else {
+            gotdig = 1;
+            if (c > '9') d = (c|32)+10-'a';
+            else d = c-'0';
+            if (dc<8) {
+                x = x*16 + d;
+            } else if (dc < DBL_MANT_DIG/4+1) {
+                y += d*(scale/=16);
+            } else if (d && !gottail) {
+                y += 0.5*scale;
+                gottail = 1;
+            }
+            dc++;
+        }
+    }
+    if (!gotdig) {
+        shunget(f);
+        if (pok) {
+            shunget(f);
+            if (gotrad) shunget(f);
+        } else {
+            shlim(f, 0);
+        }
+        return sign * 0.0;
+    }
+    if (!gotrad) rp = dc;
+    while (dc<8) x *= 16, dc++;
+    if ((c|32)=='p') {
+        e2 = scanexp(f, pok);
+        if (e2 == LLONG_MIN) {
+            if (pok) {
+                shunget(f);
+            } else {
+                shlim(f, 0);
+                return 0;
+            }
+            e2 = 0;
+        }
+    } else {
+        shunget(f);
+    }
+    e2 += 4*rp - 32;
+
+    if (!x) return sign * 0.0;
+    if (e2 > -emin) {
+        errno = ERANGE;
+        return sign * DBL_MAX * DBL_MAX;
+    }
+    if (e2 < emin-2*DBL_MANT_DIG) {
+        errno = ERANGE;
+        return sign * DBL_MIN * DBL_MIN;
+    }
+
+    while (x < 0x80000000) {
+        if (y>=0.5) {
+            x += x + 1;
+            y += y - 1;
+        } else {
+            x += x;
+            y += y;
+        }
+        e2--;
+    }
+
+    if (bits > 32+e2-emin) {
+        bits = 32+e2-emin;
+        if (bits<0) bits=0;
+    }
+
+    if (bits < DBL_MANT_DIG)
+        bias = copysign(scalbn(1, 32+DBL_MANT_DIG-bits-1), sign);
+
+    if (bits<32 && y && !(x&1)) x++, y=0;
+
+    y = bias + sign*(double)x + sign*y;
+    y -= bias;
+
+    if (!y) errno = ERANGE;
+
+    return scalbn(y, e2);
+}
+
+static double fffloatscan(FFFILE *f, int prec, int pok)
+{
+    int sign = 1;
+    size_t i;
+    int bits;
+    int emin;
+    int c;
+
+    switch (prec) {
+    case 0:
+        bits = FLT_MANT_DIG;
+        emin = FLT_MIN_EXP-bits;
+        break;
+    case 1:
+        bits = DBL_MANT_DIG;
+        emin = DBL_MIN_EXP-bits;
+        break;
+    case 2:
+        bits = DBL_MANT_DIG;
+        emin = DBL_MIN_EXP-bits;
+        break;
+    default:
+        return 0;
+    }
+
+    while (av_isspace((c = shgetc(f))));
+
+    if (c=='+' || c=='-') {
+        sign -= 2*(c=='-');
+        c = shgetc(f);
+    }
+
+    for (i=0; i<8 && (c|32)=="infinity"[i]; i++)
+        if (i<7) c = shgetc(f);
+    if (i==3 || i==8 || (i>3 && pok)) {
+        if (i!=8) {
+            shunget(f);
+            if (pok) for (; i>3; i--) shunget(f);
+        }
+        return sign * INFINITY;
+    }
+    if (!i) for (i=0; i<3 && (c|32)=="nan"[i]; i++)
+        if (i<2) c = shgetc(f);
+    if (i==3) {
+        if (shgetc(f) != '(') {
+            shunget(f);
+            return NAN;
+        }
+        for (i=1; ; i++) {
+            c = shgetc(f);
+            if (c-'0'<10U || c-'A'<26U || c-'a'<26U || c=='_')
+                continue;
+            if (c==')') return NAN;
+            shunget(f);
+            if (!pok) {
+                errno = EINVAL;
+                shlim(f, 0);
+                return 0;
+            }
+            while (i--) shunget(f);
+            return NAN;
+        }
+        return NAN;
+    }
+
+    if (i) {
+        shunget(f);
+        errno = EINVAL;
+        shlim(f, 0);
+        return 0;
+    }
+
+    if (c=='0') {
+        c = shgetc(f);
+        if ((c|32) == 'x')
+            return hexfloat(f, bits, emin, sign, pok);
+        shunget(f);
+        c = '0';
+    }
+
+    return decfloat(f, c, bits, emin, sign, pok);
+}
+
+static void *arg_n(va_list ap, unsigned int n)
+{
+    void *p;
+    unsigned int i;
+    va_list ap2;
+    va_copy(ap2, ap);
+    for (i=n; i>1; i--) va_arg(ap2, void *);
+    p = va_arg(ap2, void *);
+    va_end(ap2);
+    return p;
+}
+
+static void store_int(void *dest, int size, unsigned long long i)
+{
+    if (!dest) return;
+    switch (size) {
+    case SIZE_hh:
+        *(char *)dest = i;
+        break;
+    case SIZE_h:
+        *(short *)dest = i;
+        break;
+    case SIZE_def:
+        *(int *)dest = i;
+        break;
+    case SIZE_l:
+        *(long *)dest = i;
+        break;
+    case SIZE_ll:
+        *(long long *)dest = i;
+        break;
+    }
+}
+
+static int ff_vfscanf(FFFILE *f, const char *fmt, va_list ap)
+{
+    int width;
+    int size;
+    int base;
+    const unsigned char *p;
+    int c, t;
+    char *s;
+    void *dest=NULL;
+    int invert;
+    int matches=0;
+    unsigned long long x;
+    double y;
+    ptrdiff_t pos = 0;
+    unsigned char scanset[257];
+    size_t i;
+
+    for (p=(const unsigned char *)fmt; *p; p++) {
+
+        if (av_isspace(*p)) {
+            while (av_isspace(p[1])) p++;
+            shlim(f, 0);
+            while (av_isspace(shgetc(f)));
+            shunget(f);
+            pos += shcnt(f);
+            continue;
+        }
+        if (*p != '%' || p[1] == '%') {
+            shlim(f, 0);
+            if (*p == '%') {
+                p++;
+                while (av_isspace((c=shgetc(f))));
+            } else {
+                c = shgetc(f);
+            }
+            if (c!=*p) {
+                shunget(f);
+                if (c<0) goto input_fail;
+                goto match_fail;
+            }
+            pos += shcnt(f);
+            continue;
+        }
+
+        p++;
+        if (*p=='*') {
+            dest = 0; p++;
+        } else if (av_isdigit(*p) && p[1]=='$') {
+            dest = arg_n(ap, *p-'0'); p+=2;
+        } else {
+            dest = va_arg(ap, void *);
+        }
+
+        for (width=0; av_isdigit(*p); p++) {
+            width = 10*width + *p - '0';
+        }
+
+        if (*p=='m') {
+            s = 0;
+            p++;
+        }
+
+        size = SIZE_def;
+        switch (*p++) {
+        case 'h':
+            if (*p == 'h') p++, size = SIZE_hh;
+            else size = SIZE_h;
+            break;
+        case 'l':
+            if (*p == 'l') p++, size = SIZE_ll;
+            else size = SIZE_l;
+            break;
+        case 'j':
+            size = SIZE_ll;
+            break;
+        case 'z':
+        case 't':
+            size = SIZE_l;
+            break;
+        case 'L':
+            size = SIZE_L;
+            break;
+        case 'd': case 'i': case 'o': case 'u': case 'x':
+        case 'a': case 'e': case 'f': case 'g':
+        case 'A': case 'E': case 'F': case 'G': case 'X':
+        case 's': case 'c': case '[':
+        case 'S': case 'C':
+        case 'p': case 'n':
+            p--;
+            break;
+        default:
+            goto fmt_fail;
+        }
+
+        t = *p;
+
+        /* C or S */
+        if ((t&0x2f) == 3) {
+            t |= 32;
+            size = SIZE_l;
+        }
+
+        switch (t) {
+            case 'c':
+                if (width < 1) width = 1;
+            case '[':
+                break;
+            case 'n':
+                store_int(dest, size, pos);
+                /* do not increment match count, etc! */
+                continue;
+            default:
+                shlim(f, 0);
+                while (av_isspace(shgetc(f)));
+                shunget(f);
+                pos += shcnt(f);
+        }
+
+        shlim(f, width);
+        if (shgetc(f) < 0) goto input_fail;
+        shunget(f);
+
+        switch (t) {
+            case 's':
+            case 'c':
+            case '[':
+                if (t == 'c' || t == 's') {
+                    memset(scanset, -1, sizeof scanset);
+                    scanset[0] = 0;
+                    if (t == 's') {
+                        scanset[1 + '\t'] = 0;
+                        scanset[1 + '\n'] = 0;
+                        scanset[1 + '\v'] = 0;
+                        scanset[1 + '\f'] = 0;
+                        scanset[1 + '\r'] = 0;
+                        scanset[1 + ' ' ] = 0;
+                    }
+                } else {
+                    if (*++p == '^') p++, invert = 1;
+                    else invert = 0;
+                    memset(scanset, invert, sizeof scanset);
+                    scanset[0] = 0;
+                    if (*p == '-') p++, scanset[1+'-'] = 1-invert;
+                    else if (*p == ']') p++, scanset[1+']'] = 1-invert;
+                    for (; *p != ']'; p++) {
+                        if (!*p) goto fmt_fail;
+                        if (*p=='-' && p[1] && p[1] != ']')
+                            for (c=p++[-1]; c<*p; c++)
+                                scanset[1+c] = 1-invert;
+                        scanset[1+*p] = 1-invert;
+                    }
+                }
+                s = 0;
+                i = 0;
+                if ((s = dest)) {
+                    while (scanset[(c=shgetc(f))+1])
+                        s[i++] = c;
+                } else {
+                    while (scanset[(c=shgetc(f))+1]);
+                }
+                shunget(f);
+                if (!shcnt(f)) goto match_fail;
+                if (t == 'c' && shcnt(f) != width) goto match_fail;
+                if (t != 'c') {
+                    if (s) s[i] = 0;
+                }
+                break;
+            case 'p':
+            case 'X':
+            case 'x':
+                base = 16;
+                goto int_common;
+            case 'o':
+                base = 8;
+                goto int_common;
+            case 'd':
+            case 'u':
+                base = 10;
+                goto int_common;
+            case 'i':
+                base = 0;
+int_common:
+                x = ffintscan(f, base, 0, ULLONG_MAX);
+                if (!shcnt(f))
+                    goto match_fail;
+                if (t=='p' && dest)
+                    *(void **)dest = (void *)(uintptr_t)x;
+                else
+                    store_int(dest, size, x);
+                break;
+            case 'a': case 'A':
+            case 'e': case 'E':
+            case 'f': case 'F':
+            case 'g': case 'G':
+                y = fffloatscan(f, size, 0);
+                if (!shcnt(f))
+                    goto match_fail;
+                if (dest) {
+                    switch (size) {
+                    case SIZE_def:
+                        *(float *)dest = y;
+                        break;
+                    case SIZE_l:
+                        *(double *)dest = y;
+                        break;
+                    case SIZE_L:
+                        *(double *)dest = y;
+                        break;
+                    }
+                }
+                break;
+        }
+
+        pos += shcnt(f);
+        if (dest) matches++;
+    }
+    if (0) {
+fmt_fail:
+input_fail:
+        if (!matches) matches--;
+    }
+match_fail:
+    return matches;
+}
+
+static int ff_vsscanf(const char *s, const char *fmt, va_list ap)
+{
+    FFFILE f = {
+        .buf = (void *)s, .cookie = (void *)s,
+        .read = ffstring_read,
+    };
+
+    return ff_vfscanf(&f, fmt, ap);
+}
+
+int av_sscanf(const char *string, const char *format, ...)
+{
+    int ret;
+    va_list ap;
+    va_start(ap, format);
+    ret = ff_vsscanf(string, format, ap);
+    va_end(ap);
+    return ret;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avstring.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avstring.c
new file mode 100644
index 000000000..4c068f5bc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avstring.c
@@ -0,0 +1,461 @@
+/*
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ * Copyright (c) 2007 Mans Rullgard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "config.h"
+#include "common.h"
+#include "mem.h"
+#include "avassert.h"
+#include "avstring.h"
+#include "bprint.h"
+
+int av_strstart(const char *str, const char *pfx, const char **ptr)
+{
+    while (*pfx && *pfx == *str) {
+        pfx++;
+        str++;
+    }
+    if (!*pfx && ptr)
+        *ptr = str;
+    return !*pfx;
+}
+
+int av_stristart(const char *str, const char *pfx, const char **ptr)
+{
+    while (*pfx && av_toupper((unsigned)*pfx) == av_toupper((unsigned)*str)) {
+        pfx++;
+        str++;
+    }
+    if (!*pfx && ptr)
+        *ptr = str;
+    return !*pfx;
+}
+
+char *av_stristr(const char *s1, const char *s2)
+{
+    if (!*s2)
+        return (char*)(intptr_t)s1;
+
+    do
+        if (av_stristart(s1, s2, NULL))
+            return (char*)(intptr_t)s1;
+    while (*s1++);
+
+    return NULL;
+}
+
+char *av_strnstr(const char *haystack, const char *needle, size_t hay_length)
+{
+    size_t needle_len = strlen(needle);
+    if (!needle_len)
+        return (char*)haystack;
+    while (hay_length >= needle_len) {
+        hay_length--;
+        if (!memcmp(haystack, needle, needle_len))
+            return (char*)haystack;
+        haystack++;
+    }
+    return NULL;
+}
+
+size_t av_strlcpy(char *dst, const char *src, size_t size)
+{
+    size_t len = 0;
+    while (++len < size && *src)
+        *dst++ = *src++;
+    if (len <= size)
+        *dst = 0;
+    return len + strlen(src) - 1;
+}
+
+size_t av_strlcat(char *dst, const char *src, size_t size)
+{
+    size_t len = strlen(dst);
+    if (size <= len + 1)
+        return len + strlen(src);
+    return len + av_strlcpy(dst + len, src, size - len);
+}
+
+size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...)
+{
+    size_t len = strlen(dst);
+    va_list vl;
+
+    va_start(vl, fmt);
+    len += vsnprintf(dst + len, size > len ? size - len : 0, fmt, vl);
+    va_end(vl);
+
+    return len;
+}
+
+char *av_asprintf(const char *fmt, ...)
+{
+    char *p = NULL;
+    va_list va;
+    int len;
+
+    va_start(va, fmt);
+    len = vsnprintf(NULL, 0, fmt, va);
+    va_end(va);
+    if (len < 0)
+        goto end;
+
+    p = av_malloc(len + 1);
+    if (!p)
+        goto end;
+
+    va_start(va, fmt);
+    len = vsnprintf(p, len + 1, fmt, va);
+    va_end(va);
+    if (len < 0)
+        av_freep(&p);
+
+end:
+    return p;
+}
+
+char *av_d2str(double d)
+{
+    char *str = av_malloc(16);
+    if (str)
+        snprintf(str, 16, "%f", d);
+    return str;
+}
+
+#define WHITESPACES " \n\t\r"
+
+char *av_get_token(const char **buf, const char *term)
+{
+    char *out     = av_malloc(strlen(*buf) + 1);
+    char *ret     = out, *end = out;
+    const char *p = *buf;
+    if (!out)
+        return NULL;
+    p += strspn(p, WHITESPACES);
+
+    while (*p && !strspn(p, term)) {
+        char c = *p++;
+        if (c == '\\' && *p) {
+            *out++ = *p++;
+            end    = out;
+        } else if (c == '\'') {
+            while (*p && *p != '\'')
+                *out++ = *p++;
+            if (*p) {
+                p++;
+                end = out;
+            }
+        } else {
+            *out++ = c;
+        }
+    }
+
+    do
+        *out-- = 0;
+    while (out >= end && strspn(out, WHITESPACES));
+
+    *buf = p;
+
+    return ret;
+}
+
+char *av_strtok(char *s, const char *delim, char **saveptr)
+{
+    char *tok;
+
+    if (!s && !(s = *saveptr))
+        return NULL;
+
+    /* skip leading delimiters */
+    s += strspn(s, delim);
+
+    /* s now points to the first non delimiter char, or to the end of the string */
+    if (!*s) {
+        *saveptr = NULL;
+        return NULL;
+    }
+    tok = s++;
+
+    /* skip non delimiters */
+    s += strcspn(s, delim);
+    if (*s) {
+        *s = 0;
+        *saveptr = s+1;
+    } else {
+        *saveptr = NULL;
+    }
+
+    return tok;
+}
+
+int av_strcasecmp(const char *a, const char *b)
+{
+    uint8_t c1, c2;
+    do {
+        c1 = av_tolower(*a++);
+        c2 = av_tolower(*b++);
+    } while (c1 && c1 == c2);
+    return c1 - c2;
+}
+
+int av_strncasecmp(const char *a, const char *b, size_t n)
+{
+    uint8_t c1, c2;
+    if (n <= 0)
+        return 0;
+    do {
+        c1 = av_tolower(*a++);
+        c2 = av_tolower(*b++);
+    } while (--n && c1 && c1 == c2);
+    return c1 - c2;
+}
+
+char *av_strireplace(const char *str, const char *from, const char *to)
+{
+    char *ret = NULL;
+    const char *pstr2, *pstr = str;
+    size_t tolen = strlen(to), fromlen = strlen(from);
+    AVBPrint pbuf;
+
+    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
+    while ((pstr2 = av_stristr(pstr, from))) {
+        av_bprint_append_data(&pbuf, pstr, pstr2 - pstr);
+        pstr = pstr2 + fromlen;
+        av_bprint_append_data(&pbuf, to, tolen);
+    }
+    av_bprint_append_data(&pbuf, pstr, strlen(pstr));
+    if (!av_bprint_is_complete(&pbuf)) {
+        av_bprint_finalize(&pbuf, NULL);
+    } else {
+        av_bprint_finalize(&pbuf, &ret);
+    }
+
+    return ret;
+}
+
+const char *av_basename(const char *path)
+{
+    char *p = strrchr(path, '/');
+
+#if HAVE_DOS_PATHS
+    char *q = strrchr(path, '\\');
+    char *d = strchr(path, ':');
+
+    p = FFMAX3(p, q, d);
+#endif
+
+    if (!p)
+        return path;
+
+    return p + 1;
+}
+
+const char *av_dirname(char *path)
+{
+    char *p = strrchr(path, '/');
+
+#if HAVE_DOS_PATHS
+    char *q = strrchr(path, '\\');
+    char *d = strchr(path, ':');
+
+    d = d ? d + 1 : d;
+
+    p = FFMAX3(p, q, d);
+#endif
+
+    if (!p)
+        return ".";
+
+    *p = '\0';
+
+    return path;
+}
+
+char *av_append_path_component(const char *path, const char *component)
+{
+    size_t p_len, c_len;
+    char *fullpath;
+
+    if (!path)
+        return av_strdup(component);
+    if (!component)
+        return av_strdup(path);
+
+    p_len = strlen(path);
+    c_len = strlen(component);
+    if (p_len > SIZE_MAX - c_len || p_len + c_len > SIZE_MAX - 2)
+        return NULL;
+    fullpath = av_malloc(p_len + c_len + 2);
+    if (fullpath) {
+        if (p_len) {
+            av_strlcpy(fullpath, path, p_len + 1);
+            if (c_len) {
+                if (fullpath[p_len - 1] != '/' && component[0] != '/')
+                    fullpath[p_len++] = '/';
+                else if (fullpath[p_len - 1] == '/' && component[0] == '/')
+                    p_len--;
+            }
+        }
+        av_strlcpy(&fullpath[p_len], component, c_len + 1);
+        fullpath[p_len + c_len] = 0;
+    }
+    return fullpath;
+}
+
+int av_escape(char **dst, const char *src, const char *special_chars,
+              enum AVEscapeMode mode, int flags)
+{
+    AVBPrint dstbuf;
+
+    av_bprint_init(&dstbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
+    av_bprint_escape(&dstbuf, src, special_chars, mode, flags);
+
+    if (!av_bprint_is_complete(&dstbuf)) {
+        av_bprint_finalize(&dstbuf, NULL);
+        return AVERROR(ENOMEM);
+    } else {
+        av_bprint_finalize(&dstbuf, dst);
+        return dstbuf.len;
+    }
+}
+
+int av_match_name(const char *name, const char *names)
+{
+    const char *p;
+    int len, namelen;
+
+    if (!name || !names)
+        return 0;
+
+    namelen = strlen(name);
+    while (*names) {
+        int negate = '-' == *names;
+        p = strchr(names, ',');
+        if (!p)
+            p = names + strlen(names);
+        names += negate;
+        len = FFMAX(p - names, namelen);
+        if (!av_strncasecmp(name, names, len) || !strncmp("ALL", names, FFMAX(3, p - names)))
+            return !negate;
+        names = p + (*p == ',');
+    }
+    return 0;
+}
+
+int av_utf8_decode(int32_t *codep, const uint8_t **bufp, const uint8_t *buf_end,
+                   unsigned int flags)
+{
+    const uint8_t *p = *bufp;
+    uint32_t top;
+    uint64_t code;
+    int ret = 0, tail_len;
+    uint32_t overlong_encoding_mins[6] = {
+        0x00000000, 0x00000080, 0x00000800, 0x00010000, 0x00200000, 0x04000000,
+    };
+
+    if (p >= buf_end)
+        return 0;
+
+    code = *p++;
+
+    /* first sequence byte starts with 10, or is 1111-1110 or 1111-1111,
+       which is not admitted */
+    if ((code & 0xc0) == 0x80 || code >= 0xFE) {
+        ret = AVERROR(EILSEQ);
+        goto end;
+    }
+    top = (code & 128) >> 1;
+
+    tail_len = 0;
+    while (code & top) {
+        int tmp;
+        tail_len++;
+        if (p >= buf_end) {
+            (*bufp) ++;
+            return AVERROR(EILSEQ); /* incomplete sequence */
+        }
+
+        /* we assume the byte to be in the form 10xx-xxxx */
+        tmp = *p++ - 128;   /* strip leading 1 */
+        if (tmp>>6) {
+            (*bufp) ++;
+            return AVERROR(EILSEQ);
+        }
+        code = (code<<6) + tmp;
+        top <<= 5;
+    }
+    code &= (top << 1) - 1;
+
+    /* check for overlong encodings */
+    av_assert0(tail_len <= 5);
+    if (code < overlong_encoding_mins[tail_len]) {
+        ret = AVERROR(EILSEQ);
+        goto end;
+    }
+
+    if (code >= 1U<<31) {
+        ret = AVERROR(EILSEQ);  /* out-of-range value */
+        goto end;
+    }
+
+    *codep = code;
+
+    if (code > 0x10FFFF &&
+        !(flags & AV_UTF8_FLAG_ACCEPT_INVALID_BIG_CODES))
+        ret = AVERROR(EILSEQ);
+    if (code < 0x20 && code != 0x9 && code != 0xA && code != 0xD &&
+        flags & AV_UTF8_FLAG_EXCLUDE_XML_INVALID_CONTROL_CODES)
+        ret = AVERROR(EILSEQ);
+    if (code >= 0xD800 && code <= 0xDFFF &&
+        !(flags & AV_UTF8_FLAG_ACCEPT_SURROGATES))
+        ret = AVERROR(EILSEQ);
+    if ((code == 0xFFFE || code == 0xFFFF) &&
+        !(flags & AV_UTF8_FLAG_ACCEPT_NON_CHARACTERS))
+        ret = AVERROR(EILSEQ);
+
+end:
+    *bufp = p;
+    return ret;
+}
+
+int av_match_list(const char *name, const char *list, char separator)
+{
+    const char *p, *q;
+
+    for (p = name; p && *p; ) {
+        for (q = list; q && *q; ) {
+            int k;
+            for (k = 0; p[k] == q[k] || (p[k]*q[k] == 0 && p[k]+q[k] == separator); k++)
+                if (k && (!p[k] || p[k] == separator))
+                    return 1;
+            q = strchr(q, separator);
+            q += !!q;
+        }
+        p = strchr(p, separator);
+        p += !!p;
+    }
+
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avstring.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avstring.h
new file mode 100644
index 000000000..37dd4e2da
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avstring.h
@@ -0,0 +1,413 @@
+/*
+ * Copyright (c) 2007 Mans Rullgard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AVSTRING_H
+#define AVUTIL_AVSTRING_H
+
+#include <stddef.h>
+#include <stdint.h>
+#include "attributes.h"
+
+/**
+ * @addtogroup lavu_string
+ * @{
+ */
+
+/**
+ * Return non-zero if pfx is a prefix of str. If it is, *ptr is set to
+ * the address of the first character in str after the prefix.
+ *
+ * @param str input string
+ * @param pfx prefix to test
+ * @param ptr updated if the prefix is matched inside str
+ * @return non-zero if the prefix matches, zero otherwise
+ */
+int av_strstart(const char *str, const char *pfx, const char **ptr);
+
+/**
+ * Return non-zero if pfx is a prefix of str independent of case. If
+ * it is, *ptr is set to the address of the first character in str
+ * after the prefix.
+ *
+ * @param str input string
+ * @param pfx prefix to test
+ * @param ptr updated if the prefix is matched inside str
+ * @return non-zero if the prefix matches, zero otherwise
+ */
+int av_stristart(const char *str, const char *pfx, const char **ptr);
+
+/**
+ * Locate the first case-independent occurrence in the string haystack
+ * of the string needle.  A zero-length string needle is considered to
+ * match at the start of haystack.
+ *
+ * This function is a case-insensitive version of the standard strstr().
+ *
+ * @param haystack string to search in
+ * @param needle   string to search for
+ * @return         pointer to the located match within haystack
+ *                 or a null pointer if no match
+ */
+char *av_stristr(const char *haystack, const char *needle);
+
+/**
+ * Locate the first occurrence of the string needle in the string haystack
+ * where not more than hay_length characters are searched. A zero-length
+ * string needle is considered to match at the start of haystack.
+ *
+ * This function is a length-limited version of the standard strstr().
+ *
+ * @param haystack   string to search in
+ * @param needle     string to search for
+ * @param hay_length length of string to search in
+ * @return           pointer to the located match within haystack
+ *                   or a null pointer if no match
+ */
+char *av_strnstr(const char *haystack, const char *needle, size_t hay_length);
+
+/**
+ * Copy the string src to dst, but no more than size - 1 bytes, and
+ * null-terminate dst.
+ *
+ * This function is the same as BSD strlcpy().
+ *
+ * @param dst destination buffer
+ * @param src source string
+ * @param size size of destination buffer
+ * @return the length of src
+ *
+ * @warning since the return value is the length of src, src absolutely
+ * _must_ be a properly 0-terminated string, otherwise this will read beyond
+ * the end of the buffer and possibly crash.
+ */
+size_t av_strlcpy(char *dst, const char *src, size_t size);
+
+/**
+ * Append the string src to the string dst, but to a total length of
+ * no more than size - 1 bytes, and null-terminate dst.
+ *
+ * This function is similar to BSD strlcat(), but differs when
+ * size <= strlen(dst).
+ *
+ * @param dst destination buffer
+ * @param src source string
+ * @param size size of destination buffer
+ * @return the total length of src and dst
+ *
+ * @warning since the return value use the length of src and dst, these
+ * absolutely _must_ be a properly 0-terminated strings, otherwise this
+ * will read beyond the end of the buffer and possibly crash.
+ */
+size_t av_strlcat(char *dst, const char *src, size_t size);
+
+/**
+ * Append output to a string, according to a format. Never write out of
+ * the destination buffer, and always put a terminating 0 within
+ * the buffer.
+ * @param dst destination buffer (string to which the output is
+ *  appended)
+ * @param size total size of the destination buffer
+ * @param fmt printf-compatible format string, specifying how the
+ *  following parameters are used
+ * @return the length of the string that would have been generated
+ *  if enough space had been available
+ */
+size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...) av_printf_format(3, 4);
+
+/**
+ * Get the count of continuous non zero chars starting from the beginning.
+ *
+ * @param len maximum number of characters to check in the string, that
+ *            is the maximum value which is returned by the function
+ */
+static inline size_t av_strnlen(const char *s, size_t len)
+{
+    size_t i;
+    for (i = 0; i < len && s[i]; i++)
+        ;
+    return i;
+}
+
+/**
+ * Print arguments following specified format into a large enough auto
+ * allocated buffer. It is similar to GNU asprintf().
+ * @param fmt printf-compatible format string, specifying how the
+ *            following parameters are used.
+ * @return the allocated string
+ * @note You have to free the string yourself with av_free().
+ */
+char *av_asprintf(const char *fmt, ...) av_printf_format(1, 2);
+
+/**
+ * Convert a number to an av_malloced string.
+ */
+char *av_d2str(double d);
+
+/**
+ * Unescape the given string until a non escaped terminating char,
+ * and return the token corresponding to the unescaped string.
+ *
+ * The normal \ and ' escaping is supported. Leading and trailing
+ * whitespaces are removed, unless they are escaped with '\' or are
+ * enclosed between ''.
+ *
+ * @param buf the buffer to parse, buf will be updated to point to the
+ * terminating char
+ * @param term a 0-terminated list of terminating chars
+ * @return the malloced unescaped string, which must be av_freed by
+ * the user, NULL in case of allocation failure
+ */
+char *av_get_token(const char **buf, const char *term);
+
+/**
+ * Split the string into several tokens which can be accessed by
+ * successive calls to av_strtok().
+ *
+ * A token is defined as a sequence of characters not belonging to the
+ * set specified in delim.
+ *
+ * On the first call to av_strtok(), s should point to the string to
+ * parse, and the value of saveptr is ignored. In subsequent calls, s
+ * should be NULL, and saveptr should be unchanged since the previous
+ * call.
+ *
+ * This function is similar to strtok_r() defined in POSIX.1.
+ *
+ * @param s the string to parse, may be NULL
+ * @param delim 0-terminated list of token delimiters, must be non-NULL
+ * @param saveptr user-provided pointer which points to stored
+ * information necessary for av_strtok() to continue scanning the same
+ * string. saveptr is updated to point to the next character after the
+ * first delimiter found, or to NULL if the string was terminated
+ * @return the found token, or NULL when no token is found
+ */
+char *av_strtok(char *s, const char *delim, char **saveptr);
+
+/**
+ * Locale-independent conversion of ASCII isdigit.
+ */
+static inline av_const int av_isdigit(int c)
+{
+    return c >= '0' && c <= '9';
+}
+
+/**
+ * Locale-independent conversion of ASCII isgraph.
+ */
+static inline av_const int av_isgraph(int c)
+{
+    return c > 32 && c < 127;
+}
+
+/**
+ * Locale-independent conversion of ASCII isspace.
+ */
+static inline av_const int av_isspace(int c)
+{
+    return c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' ||
+           c == '\v';
+}
+
+/**
+ * Locale-independent conversion of ASCII characters to uppercase.
+ */
+static inline av_const int av_toupper(int c)
+{
+    if (c >= 'a' && c <= 'z')
+        c ^= 0x20;
+    return c;
+}
+
+/**
+ * Locale-independent conversion of ASCII characters to lowercase.
+ */
+static inline av_const int av_tolower(int c)
+{
+    if (c >= 'A' && c <= 'Z')
+        c ^= 0x20;
+    return c;
+}
+
+/**
+ * Locale-independent conversion of ASCII isxdigit.
+ */
+static inline av_const int av_isxdigit(int c)
+{
+    c = av_tolower(c);
+    return av_isdigit(c) || (c >= 'a' && c <= 'f');
+}
+
+/**
+ * Locale-independent case-insensitive compare.
+ * @note This means only ASCII-range characters are case-insensitive
+ */
+int av_strcasecmp(const char *a, const char *b);
+
+/**
+ * Locale-independent case-insensitive compare.
+ * @note This means only ASCII-range characters are case-insensitive
+ */
+int av_strncasecmp(const char *a, const char *b, size_t n);
+
+/**
+ * Locale-independent strings replace.
+ * @note This means only ASCII-range characters are replace
+ */
+char *av_strireplace(const char *str, const char *from, const char *to);
+
+/**
+ * Thread safe basename.
+ * @param path the path, on DOS both \ and / are considered separators.
+ * @return pointer to the basename substring.
+ */
+const char *av_basename(const char *path);
+
+/**
+ * Thread safe dirname.
+ * @param path the path, on DOS both \ and / are considered separators.
+ * @return the path with the separator replaced by the string terminator or ".".
+ * @note the function may change the input string.
+ */
+const char *av_dirname(char *path);
+
+/**
+ * Match instances of a name in a comma-separated list of names.
+ * List entries are checked from the start to the end of the names list,
+ * the first match ends further processing. If an entry prefixed with '-'
+ * matches, then 0 is returned. The "ALL" list entry is considered to
+ * match all names.
+ *
+ * @param name  Name to look for.
+ * @param names List of names.
+ * @return 1 on match, 0 otherwise.
+ */
+int av_match_name(const char *name, const char *names);
+
+/**
+ * Append path component to the existing path.
+ * Path separator '/' is placed between when needed.
+ * Resulting string have to be freed with av_free().
+ * @param path      base path
+ * @param component component to be appended
+ * @return new path or NULL on error.
+ */
+char *av_append_path_component(const char *path, const char *component);
+
+enum AVEscapeMode {
+    AV_ESCAPE_MODE_AUTO,      ///< Use auto-selected escaping mode.
+    AV_ESCAPE_MODE_BACKSLASH, ///< Use backslash escaping.
+    AV_ESCAPE_MODE_QUOTE,     ///< Use single-quote escaping.
+};
+
+/**
+ * Consider spaces special and escape them even in the middle of the
+ * string.
+ *
+ * This is equivalent to adding the whitespace characters to the special
+ * characters lists, except it is guaranteed to use the exact same list
+ * of whitespace characters as the rest of libavutil.
+ */
+#define AV_ESCAPE_FLAG_WHITESPACE (1 << 0)
+
+/**
+ * Escape only specified special characters.
+ * Without this flag, escape also any characters that may be considered
+ * special by av_get_token(), such as the single quote.
+ */
+#define AV_ESCAPE_FLAG_STRICT (1 << 1)
+
+/**
+ * Escape string in src, and put the escaped string in an allocated
+ * string in *dst, which must be freed with av_free().
+ *
+ * @param dst           pointer where an allocated string is put
+ * @param src           string to escape, must be non-NULL
+ * @param special_chars string containing the special characters which
+ *                      need to be escaped, can be NULL
+ * @param mode          escape mode to employ, see AV_ESCAPE_MODE_* macros.
+ *                      Any unknown value for mode will be considered equivalent to
+ *                      AV_ESCAPE_MODE_BACKSLASH, but this behaviour can change without
+ *                      notice.
+ * @param flags         flags which control how to escape, see AV_ESCAPE_FLAG_ macros
+ * @return the length of the allocated string, or a negative error code in case of error
+ * @see av_bprint_escape()
+ */
+av_warn_unused_result
+int av_escape(char **dst, const char *src, const char *special_chars,
+              enum AVEscapeMode mode, int flags);
+
+#define AV_UTF8_FLAG_ACCEPT_INVALID_BIG_CODES          1 ///< accept codepoints over 0x10FFFF
+#define AV_UTF8_FLAG_ACCEPT_NON_CHARACTERS             2 ///< accept non-characters - 0xFFFE and 0xFFFF
+#define AV_UTF8_FLAG_ACCEPT_SURROGATES                 4 ///< accept UTF-16 surrogates codes
+#define AV_UTF8_FLAG_EXCLUDE_XML_INVALID_CONTROL_CODES 8 ///< exclude control codes not accepted by XML
+
+#define AV_UTF8_FLAG_ACCEPT_ALL \
+    AV_UTF8_FLAG_ACCEPT_INVALID_BIG_CODES|AV_UTF8_FLAG_ACCEPT_NON_CHARACTERS|AV_UTF8_FLAG_ACCEPT_SURROGATES
+
+/**
+ * Read and decode a single UTF-8 code point (character) from the
+ * buffer in *buf, and update *buf to point to the next byte to
+ * decode.
+ *
+ * In case of an invalid byte sequence, the pointer will be updated to
+ * the next byte after the invalid sequence and the function will
+ * return an error code.
+ *
+ * Depending on the specified flags, the function will also fail in
+ * case the decoded code point does not belong to a valid range.
+ *
+ * @note For speed-relevant code a carefully implemented use of
+ * GET_UTF8() may be preferred.
+ *
+ * @param codep   pointer used to return the parsed code in case of success.
+ *                The value in *codep is set even in case the range check fails.
+ * @param bufp    pointer to the address the first byte of the sequence
+ *                to decode, updated by the function to point to the
+ *                byte next after the decoded sequence
+ * @param buf_end pointer to the end of the buffer, points to the next
+ *                byte past the last in the buffer. This is used to
+ *                avoid buffer overreads (in case of an unfinished
+ *                UTF-8 sequence towards the end of the buffer).
+ * @param flags   a collection of AV_UTF8_FLAG_* flags
+ * @return >= 0 in case a sequence was successfully read, a negative
+ * value in case of invalid sequence
+ */
+av_warn_unused_result
+int av_utf8_decode(int32_t *codep, const uint8_t **bufp, const uint8_t *buf_end,
+                   unsigned int flags);
+
+/**
+ * Check if a name is in a list.
+ * @returns 0 if not found, or the 1 based index where it has been found in the
+ *            list.
+ */
+int av_match_list(const char *name, const char *list, char separator);
+
+/**
+ * See libc sscanf manual for more information.
+ * Locale-independent sscanf implementation.
+ */
+int av_sscanf(const char *string, const char *format, ...);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_AVSTRING_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avutil.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avutil.h
new file mode 100644
index 000000000..4d633156d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avutil.h
@@ -0,0 +1,365 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AVUTIL_H
+#define AVUTIL_AVUTIL_H
+
+/**
+ * @file
+ * @ingroup lavu
+ * Convenience header that includes @ref lavu "libavutil"'s core.
+ */
+
+/**
+ * @mainpage
+ *
+ * @section ffmpeg_intro Introduction
+ *
+ * This document describes the usage of the different libraries
+ * provided by FFmpeg.
+ *
+ * @li @ref libavc "libavcodec" encoding/decoding library
+ * @li @ref lavfi "libavfilter" graph-based frame editing library
+ * @li @ref libavf "libavformat" I/O and muxing/demuxing library
+ * @li @ref lavd "libavdevice" special devices muxing/demuxing library
+ * @li @ref lavu "libavutil" common utility library
+ * @li @ref lswr "libswresample" audio resampling, format conversion and mixing
+ * @li @ref lpp  "libpostproc" post processing library
+ * @li @ref libsws "libswscale" color conversion and scaling library
+ *
+ * @section ffmpeg_versioning Versioning and compatibility
+ *
+ * Each of the FFmpeg libraries contains a version.h header, which defines a
+ * major, minor and micro version number with the
+ * <em>LIBRARYNAME_VERSION_{MAJOR,MINOR,MICRO}</em> macros. The major version
+ * number is incremented with backward incompatible changes - e.g. removing
+ * parts of the public API, reordering public struct members, etc. The minor
+ * version number is incremented for backward compatible API changes or major
+ * new features - e.g. adding a new public function or a new decoder. The micro
+ * version number is incremented for smaller changes that a calling program
+ * might still want to check for - e.g. changing behavior in a previously
+ * unspecified situation.
+ *
+ * FFmpeg guarantees backward API and ABI compatibility for each library as long
+ * as its major version number is unchanged. This means that no public symbols
+ * will be removed or renamed. Types and names of the public struct members and
+ * values of public macros and enums will remain the same (unless they were
+ * explicitly declared as not part of the public API). Documented behavior will
+ * not change.
+ *
+ * In other words, any correct program that works with a given FFmpeg snapshot
+ * should work just as well without any changes with any later snapshot with the
+ * same major versions. This applies to both rebuilding the program against new
+ * FFmpeg versions or to replacing the dynamic FFmpeg libraries that a program
+ * links against.
+ *
+ * However, new public symbols may be added and new members may be appended to
+ * public structs whose size is not part of public ABI (most public structs in
+ * FFmpeg). New macros and enum values may be added. Behavior in undocumented
+ * situations may change slightly (and be documented). All those are accompanied
+ * by an entry in doc/APIchanges and incrementing either the minor or micro
+ * version number.
+ */
+
+/**
+ * @defgroup lavu libavutil
+ * Common code shared across all FFmpeg libraries.
+ *
+ * @note
+ * libavutil is designed to be modular. In most cases, in order to use the
+ * functions provided by one component of libavutil you must explicitly include
+ * the specific header containing that feature. If you are only using
+ * media-related components, you could simply include libavutil/avutil.h, which
+ * brings in most of the "core" components.
+ *
+ * @{
+ *
+ * @defgroup lavu_crypto Crypto and Hashing
+ *
+ * @{
+ * @}
+ *
+ * @defgroup lavu_math Mathematics
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_string String Manipulation
+ *
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_mem Memory Management
+ *
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_data Data Structures
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_video Video related
+ *
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_audio Audio related
+ *
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_error Error Codes
+ *
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_log Logging Facility
+ *
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_misc Other
+ *
+ * @{
+ *
+ * @defgroup preproc_misc Preprocessor String Macros
+ *
+ * @{
+ *
+ * @}
+ *
+ * @defgroup version_utils Library Version Macros
+ *
+ * @{
+ *
+ * @}
+ */
+
+
+/**
+ * @addtogroup lavu_ver
+ * @{
+ */
+
+/**
+ * Return the LIBAVUTIL_VERSION_INT constant.
+ */
+unsigned avutil_version(void);
+
+/**
+ * Return an informative version string. This usually is the actual release
+ * version number or a git commit description. This string has no fixed format
+ * and can change any time. It should never be parsed by code.
+ */
+const char *av_version_info(void);
+
+/**
+ * Return the libavutil build-time configuration.
+ */
+const char *avutil_configuration(void);
+
+/**
+ * Return the libavutil license.
+ */
+const char *avutil_license(void);
+
+/**
+ * @}
+ */
+
+/**
+ * @addtogroup lavu_media Media Type
+ * @brief Media Type
+ */
+
+enum AVMediaType {
+    AVMEDIA_TYPE_UNKNOWN = -1,  ///< Usually treated as AVMEDIA_TYPE_DATA
+    AVMEDIA_TYPE_VIDEO,
+    AVMEDIA_TYPE_AUDIO,
+    AVMEDIA_TYPE_DATA,          ///< Opaque data information usually continuous
+    AVMEDIA_TYPE_SUBTITLE,
+    AVMEDIA_TYPE_ATTACHMENT,    ///< Opaque data information usually sparse
+    AVMEDIA_TYPE_NB
+};
+
+/**
+ * Return a string describing the media_type enum, NULL if media_type
+ * is unknown.
+ */
+const char *av_get_media_type_string(enum AVMediaType media_type);
+
+/**
+ * @defgroup lavu_const Constants
+ * @{
+ *
+ * @defgroup lavu_enc Encoding specific
+ *
+ * @note those definition should move to avcodec
+ * @{
+ */
+
+#define FF_LAMBDA_SHIFT 7
+#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
+#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
+#define FF_LAMBDA_MAX (256*128-1)
+
+#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
+
+/**
+ * @}
+ * @defgroup lavu_time Timestamp specific
+ *
+ * FFmpeg internal timebase and timestamp definitions
+ *
+ * @{
+ */
+
+/**
+ * @brief Undefined timestamp value
+ *
+ * Usually reported by demuxer that work on containers that do not provide
+ * either pts or dts.
+ */
+
+#define AV_NOPTS_VALUE          ((int64_t)UINT64_C(0x8000000000000000))
+
+/**
+ * Internal time base represented as integer
+ */
+
+#define AV_TIME_BASE            1000000
+
+/**
+ * Internal time base represented as fractional value
+ */
+
+#define AV_TIME_BASE_Q          (AVRational){1, AV_TIME_BASE}
+
+/**
+ * @}
+ * @}
+ * @defgroup lavu_picture Image related
+ *
+ * AVPicture types, pixel formats and basic image planes manipulation.
+ *
+ * @{
+ */
+
+enum AVPictureType {
+    AV_PICTURE_TYPE_NONE = 0, ///< Undefined
+    AV_PICTURE_TYPE_I,     ///< Intra
+    AV_PICTURE_TYPE_P,     ///< Predicted
+    AV_PICTURE_TYPE_B,     ///< Bi-dir predicted
+    AV_PICTURE_TYPE_S,     ///< S(GMC)-VOP MPEG-4
+    AV_PICTURE_TYPE_SI,    ///< Switching Intra
+    AV_PICTURE_TYPE_SP,    ///< Switching Predicted
+    AV_PICTURE_TYPE_BI,    ///< BI type
+};
+
+/**
+ * Return a single letter to describe the given picture type
+ * pict_type.
+ *
+ * @param[in] pict_type the picture type @return a single character
+ * representing the picture type, '?' if pict_type is unknown
+ */
+char av_get_picture_type_char(enum AVPictureType pict_type);
+
+/**
+ * @}
+ */
+
+#include "common.h"
+#include "error.h"
+#include "rational.h"
+#include "version.h"
+#include "macros.h"
+#include "mathematics.h"
+#include "log.h"
+#include "pixfmt.h"
+
+/**
+ * Return x default pointer in case p is NULL.
+ */
+static inline void *av_x_if_null(const void *p, const void *x)
+{
+    return (void *)(intptr_t)(p ? p : x);
+}
+
+/**
+ * Compute the length of an integer list.
+ *
+ * @param elsize  size in bytes of each list element (only 1, 2, 4 or 8)
+ * @param term    list terminator (usually 0 or -1)
+ * @param list    pointer to the list
+ * @return  length of the list, in elements, not counting the terminator
+ */
+unsigned av_int_list_length_for_size(unsigned elsize,
+                                     const void *list, uint64_t term) av_pure;
+
+/**
+ * Compute the length of an integer list.
+ *
+ * @param term  list terminator (usually 0 or -1)
+ * @param list  pointer to the list
+ * @return  length of the list, in elements, not counting the terminator
+ */
+#define av_int_list_length(list, term) \
+    av_int_list_length_for_size(sizeof(*(list)), list, term)
+
+/**
+ * Open a file using a UTF-8 filename.
+ * The API of this function matches POSIX fopen(), errors are returned through
+ * errno.
+ */
+FILE *av_fopen_utf8(const char *path, const char *mode);
+
+/**
+ * Return the fractional representation of the internal time base.
+ */
+AVRational av_get_time_base_q(void);
+
+#define AV_FOURCC_MAX_STRING_SIZE 32
+
+#define av_fourcc2str(fourcc) av_fourcc_make_string((char[AV_FOURCC_MAX_STRING_SIZE]){0}, fourcc)
+
+/**
+ * Fill the provided buffer with a string containing a FourCC (four-character
+ * code) representation.
+ *
+ * @param buf    a buffer with size in bytes of at least AV_FOURCC_MAX_STRING_SIZE
+ * @param fourcc the fourcc to represent
+ * @return the buffer in input
+ */
+char *av_fourcc_make_string(char *buf, uint32_t fourcc);
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* AVUTIL_AVUTIL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avutilres.rc b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avutilres.rc
new file mode 100644
index 000000000..40a75eb37
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/avutilres.rc
@@ -0,0 +1,55 @@
+/*
+ * Windows resource file for libavutil
+ *
+ * Copyright (C) 2012 James Almer
+ * Copyright (C) 2013 Tiancheng "Timothy" Gu
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <windows.h>
+#include "libavutil/version.h"
+#include "libavutil/ffversion.h"
+#include "config.h"
+
+1 VERSIONINFO
+FILEVERSION     LIBAVUTIL_VERSION_MAJOR, LIBAVUTIL_VERSION_MINOR, LIBAVUTIL_VERSION_MICRO, 0
+PRODUCTVERSION  LIBAVUTIL_VERSION_MAJOR, LIBAVUTIL_VERSION_MINOR, LIBAVUTIL_VERSION_MICRO, 0
+FILEFLAGSMASK   VS_FFI_FILEFLAGSMASK
+FILEOS          VOS_NT_WINDOWS32
+FILETYPE        VFT_DLL
+{
+    BLOCK "StringFileInfo"
+    {
+        BLOCK "040904B0"
+        {
+            VALUE "CompanyName",      "FFmpeg Project"
+            VALUE "FileDescription",  "FFmpeg utility library"
+            VALUE "FileVersion",      AV_STRINGIFY(LIBAVUTIL_VERSION)
+            VALUE "InternalName",     "libavutil"
+            VALUE "LegalCopyright",   "Copyright (C) 2000-" AV_STRINGIFY(CONFIG_THIS_YEAR) " FFmpeg Project"
+            VALUE "OriginalFilename", "avutil" BUILDSUF "-" AV_STRINGIFY(LIBAVUTIL_VERSION_MAJOR) SLIBSUF
+            VALUE "ProductName",      "FFmpeg"
+            VALUE "ProductVersion",   FFMPEG_VERSION
+        }
+    }
+
+    BLOCK "VarFileInfo"
+    {
+        VALUE "Translation", 0x0409, 0x04B0
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/base64.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/base64.c
new file mode 100644
index 000000000..25ae8c411
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/base64.c
@@ -0,0 +1,174 @@
+/*
+ * Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @brief Base64 encode/decode
+ * @author Ryan Martell <rdm4@martellventures.com> (with lots of Michael)
+ */
+
+#include "common.h"
+#include "base64.h"
+#include "intreadwrite.h"
+#include "timer.h"
+
+/* ---------------- private code */
+static const uint8_t map2[256] =
+{
+    0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff,
+
+    0x3e, 0xff, 0xff, 0xff, 0x3f, 0x34, 0x35, 0x36,
+    0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0xff,
+    0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0x00, 0x01,
+    0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
+    0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11,
+    0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1a, 0x1b,
+    0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23,
+    0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
+    0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33,
+
+                      0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+};
+
+#define BASE64_DEC_STEP(i) do { \
+    bits = map2[in[i]]; \
+    if (bits & 0x80) \
+        goto out ## i; \
+    v = i ? (v << 6) + bits : bits; \
+} while(0)
+
+int av_base64_decode(uint8_t *out, const char *in_str, int out_size)
+{
+    uint8_t *dst = out;
+    uint8_t *end = out + out_size;
+    // no sign extension
+    const uint8_t *in = in_str;
+    unsigned bits = 0xff;
+    unsigned v;
+
+    while (end - dst > 3) {
+        BASE64_DEC_STEP(0);
+        BASE64_DEC_STEP(1);
+        BASE64_DEC_STEP(2);
+        BASE64_DEC_STEP(3);
+        // Using AV_WB32 directly confuses compiler
+        v = av_be2ne32(v << 8);
+        AV_WN32(dst, v);
+        dst += 3;
+        in += 4;
+    }
+    if (end - dst) {
+        BASE64_DEC_STEP(0);
+        BASE64_DEC_STEP(1);
+        BASE64_DEC_STEP(2);
+        BASE64_DEC_STEP(3);
+        *dst++ = v >> 16;
+        if (end - dst)
+            *dst++ = v >> 8;
+        if (end - dst)
+            *dst++ = v;
+        in += 4;
+    }
+    while (1) {
+        BASE64_DEC_STEP(0);
+        in++;
+        BASE64_DEC_STEP(0);
+        in++;
+        BASE64_DEC_STEP(0);
+        in++;
+        BASE64_DEC_STEP(0);
+        in++;
+    }
+
+out3:
+    *dst++ = v >> 10;
+    v <<= 2;
+out2:
+    *dst++ = v >> 4;
+out1:
+out0:
+    return bits & 1 ? AVERROR_INVALIDDATA : dst - out;
+}
+
+/*****************************************************************************
+* b64_encode: Stolen from VLC's http.c.
+* Simplified by Michael.
+* Fixed edge cases and made it work from data (vs. strings) by Ryan.
+*****************************************************************************/
+
+char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size)
+{
+    static const char b64[] =
+        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+    char *ret, *dst;
+    unsigned i_bits = 0;
+    int i_shift = 0;
+    int bytes_remaining = in_size;
+
+    if (in_size >= UINT_MAX / 4 ||
+        out_size < AV_BASE64_SIZE(in_size))
+        return NULL;
+    ret = dst = out;
+    while (bytes_remaining > 3) {
+        i_bits = AV_RB32(in);
+        in += 3; bytes_remaining -= 3;
+        *dst++ = b64[ i_bits>>26        ];
+        *dst++ = b64[(i_bits>>20) & 0x3F];
+        *dst++ = b64[(i_bits>>14) & 0x3F];
+        *dst++ = b64[(i_bits>>8 ) & 0x3F];
+    }
+    i_bits = 0;
+    while (bytes_remaining) {
+        i_bits = (i_bits << 8) + *in++;
+        bytes_remaining--;
+        i_shift += 8;
+    }
+    while (i_shift > 0) {
+        *dst++ = b64[(i_bits << 6 >> i_shift) & 0x3f];
+        i_shift -= 6;
+    }
+    while ((dst - ret) & 3)
+        *dst++ = '=';
+    *dst = '\0';
+
+    return ret;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/base64.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/base64.h
new file mode 100644
index 000000000..2954c12d4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/base64.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_BASE64_H
+#define AVUTIL_BASE64_H
+
+#include <stdint.h>
+
+/**
+ * @defgroup lavu_base64 Base64
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+/**
+ * Decode a base64-encoded string.
+ *
+ * @param out      buffer for decoded data
+ * @param in       null-terminated input string
+ * @param out_size size in bytes of the out buffer, must be at
+ *                 least 3/4 of the length of in, that is AV_BASE64_DECODE_SIZE(strlen(in))
+ * @return         number of bytes written, or a negative value in case of
+ *                 invalid input
+ */
+int av_base64_decode(uint8_t *out, const char *in, int out_size);
+
+/**
+ * Calculate the output size in bytes needed to decode a base64 string
+ * with length x to a data buffer.
+ */
+#define AV_BASE64_DECODE_SIZE(x) ((x) * 3LL / 4)
+
+/**
+ * Encode data to base64 and null-terminate.
+ *
+ * @param out      buffer for encoded data
+ * @param out_size size in bytes of the out buffer (including the
+ *                 null terminator), must be at least AV_BASE64_SIZE(in_size)
+ * @param in       input buffer containing the data to encode
+ * @param in_size  size in bytes of the in buffer
+ * @return         out or NULL in case of error
+ */
+char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size);
+
+/**
+ * Calculate the output size needed to base64-encode x bytes to a
+ * null-terminated string.
+ */
+#define AV_BASE64_SIZE(x)  (((x)+2) / 3 * 4 + 1)
+
+ /**
+  * @}
+  */
+
+#endif /* AVUTIL_BASE64_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/blowfish.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/blowfish.c
new file mode 100644
index 000000000..abc0e03d4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/blowfish.c
@@ -0,0 +1,424 @@
+/*
+ * Blowfish algorithm
+ * Copyright (c) 2012 Samuel Pitoiset
+ *
+ * loosely based on Paul Kocher's implementation
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avutil.h"
+#include "common.h"
+#include "intreadwrite.h"
+#include "mem.h"
+#include "blowfish.h"
+
+static const uint32_t orig_p[AV_BF_ROUNDS + 2] = {
+    0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
+    0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
+    0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C,
+    0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917,
+    0x9216D5D9, 0x8979FB1B
+};
+
+static const uint32_t orig_s[4][256] = {
+    { 0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7,
+      0xB8E1AFED, 0x6A267E96, 0xBA7C9045, 0xF12C7F99,
+      0x24A19947, 0xB3916CF7, 0x0801F2E2, 0x858EFC16,
+      0x636920D8, 0x71574E69, 0xA458FEA3, 0xF4933D7E,
+      0x0D95748F, 0x728EB658, 0x718BCD58, 0x82154AEE,
+      0x7B54A41D, 0xC25A59B5, 0x9C30D539, 0x2AF26013,
+      0xC5D1B023, 0x286085F0, 0xCA417918, 0xB8DB38EF,
+      0x8E79DCB0, 0x603A180E, 0x6C9E0E8B, 0xB01E8A3E,
+      0xD71577C1, 0xBD314B27, 0x78AF2FDA, 0x55605C60,
+      0xE65525F3, 0xAA55AB94, 0x57489862, 0x63E81440,
+      0x55CA396A, 0x2AAB10B6, 0xB4CC5C34, 0x1141E8CE,
+      0xA15486AF, 0x7C72E993, 0xB3EE1411, 0x636FBC2A,
+      0x2BA9C55D, 0x741831F6, 0xCE5C3E16, 0x9B87931E,
+      0xAFD6BA33, 0x6C24CF5C, 0x7A325381, 0x28958677,
+      0x3B8F4898, 0x6B4BB9AF, 0xC4BFE81B, 0x66282193,
+      0x61D809CC, 0xFB21A991, 0x487CAC60, 0x5DEC8032,
+      0xEF845D5D, 0xE98575B1, 0xDC262302, 0xEB651B88,
+      0x23893E81, 0xD396ACC5, 0x0F6D6FF3, 0x83F44239,
+      0x2E0B4482, 0xA4842004, 0x69C8F04A, 0x9E1F9B5E,
+      0x21C66842, 0xF6E96C9A, 0x670C9C61, 0xABD388F0,
+      0x6A51A0D2, 0xD8542F68, 0x960FA728, 0xAB5133A3,
+      0x6EEF0B6C, 0x137A3BE4, 0xBA3BF050, 0x7EFB2A98,
+      0xA1F1651D, 0x39AF0176, 0x66CA593E, 0x82430E88,
+      0x8CEE8619, 0x456F9FB4, 0x7D84A5C3, 0x3B8B5EBE,
+      0xE06F75D8, 0x85C12073, 0x401A449F, 0x56C16AA6,
+      0x4ED3AA62, 0x363F7706, 0x1BFEDF72, 0x429B023D,
+      0x37D0D724, 0xD00A1248, 0xDB0FEAD3, 0x49F1C09B,
+      0x075372C9, 0x80991B7B, 0x25D479D8, 0xF6E8DEF7,
+      0xE3FE501A, 0xB6794C3B, 0x976CE0BD, 0x04C006BA,
+      0xC1A94FB6, 0x409F60C4, 0x5E5C9EC2, 0x196A2463,
+      0x68FB6FAF, 0x3E6C53B5, 0x1339B2EB, 0x3B52EC6F,
+      0x6DFC511F, 0x9B30952C, 0xCC814544, 0xAF5EBD09,
+      0xBEE3D004, 0xDE334AFD, 0x660F2807, 0x192E4BB3,
+      0xC0CBA857, 0x45C8740F, 0xD20B5F39, 0xB9D3FBDB,
+      0x5579C0BD, 0x1A60320A, 0xD6A100C6, 0x402C7279,
+      0x679F25FE, 0xFB1FA3CC, 0x8EA5E9F8, 0xDB3222F8,
+      0x3C7516DF, 0xFD616B15, 0x2F501EC8, 0xAD0552AB,
+      0x323DB5FA, 0xFD238760, 0x53317B48, 0x3E00DF82,
+      0x9E5C57BB, 0xCA6F8CA0, 0x1A87562E, 0xDF1769DB,
+      0xD542A8F6, 0x287EFFC3, 0xAC6732C6, 0x8C4F5573,
+      0x695B27B0, 0xBBCA58C8, 0xE1FFA35D, 0xB8F011A0,
+      0x10FA3D98, 0xFD2183B8, 0x4AFCB56C, 0x2DD1D35B,
+      0x9A53E479, 0xB6F84565, 0xD28E49BC, 0x4BFB9790,
+      0xE1DDF2DA, 0xA4CB7E33, 0x62FB1341, 0xCEE4C6E8,
+      0xEF20CADA, 0x36774C01, 0xD07E9EFE, 0x2BF11FB4,
+      0x95DBDA4D, 0xAE909198, 0xEAAD8E71, 0x6B93D5A0,
+      0xD08ED1D0, 0xAFC725E0, 0x8E3C5B2F, 0x8E7594B7,
+      0x8FF6E2FB, 0xF2122B64, 0x8888B812, 0x900DF01C,
+      0x4FAD5EA0, 0x688FC31C, 0xD1CFF191, 0xB3A8C1AD,
+      0x2F2F2218, 0xBE0E1777, 0xEA752DFE, 0x8B021FA1,
+      0xE5A0CC0F, 0xB56F74E8, 0x18ACF3D6, 0xCE89E299,
+      0xB4A84FE0, 0xFD13E0B7, 0x7CC43B81, 0xD2ADA8D9,
+      0x165FA266, 0x80957705, 0x93CC7314, 0x211A1477,
+      0xE6AD2065, 0x77B5FA86, 0xC75442F5, 0xFB9D35CF,
+      0xEBCDAF0C, 0x7B3E89A0, 0xD6411BD3, 0xAE1E7E49,
+      0x00250E2D, 0x2071B35E, 0x226800BB, 0x57B8E0AF,
+      0x2464369B, 0xF009B91E, 0x5563911D, 0x59DFA6AA,
+      0x78C14389, 0xD95A537F, 0x207D5BA2, 0x02E5B9C5,
+      0x83260376, 0x6295CFA9, 0x11C81968, 0x4E734A41,
+      0xB3472DCA, 0x7B14A94A, 0x1B510052, 0x9A532915,
+      0xD60F573F, 0xBC9BC6E4, 0x2B60A476, 0x81E67400,
+      0x08BA6FB5, 0x571BE91F, 0xF296EC6B, 0x2A0DD915,
+      0xB6636521, 0xE7B9F9B6, 0xFF34052E, 0xC5855664,
+      0x53B02D5D, 0xA99F8FA1, 0x08BA4799, 0x6E85076A },
+    { 0x4B7A70E9, 0xB5B32944, 0xDB75092E, 0xC4192623,
+      0xAD6EA6B0, 0x49A7DF7D, 0x9CEE60B8, 0x8FEDB266,
+      0xECAA8C71, 0x699A17FF, 0x5664526C, 0xC2B19EE1,
+      0x193602A5, 0x75094C29, 0xA0591340, 0xE4183A3E,
+      0x3F54989A, 0x5B429D65, 0x6B8FE4D6, 0x99F73FD6,
+      0xA1D29C07, 0xEFE830F5, 0x4D2D38E6, 0xF0255DC1,
+      0x4CDD2086, 0x8470EB26, 0x6382E9C6, 0x021ECC5E,
+      0x09686B3F, 0x3EBAEFC9, 0x3C971814, 0x6B6A70A1,
+      0x687F3584, 0x52A0E286, 0xB79C5305, 0xAA500737,
+      0x3E07841C, 0x7FDEAE5C, 0x8E7D44EC, 0x5716F2B8,
+      0xB03ADA37, 0xF0500C0D, 0xF01C1F04, 0x0200B3FF,
+      0xAE0CF51A, 0x3CB574B2, 0x25837A58, 0xDC0921BD,
+      0xD19113F9, 0x7CA92FF6, 0x94324773, 0x22F54701,
+      0x3AE5E581, 0x37C2DADC, 0xC8B57634, 0x9AF3DDA7,
+      0xA9446146, 0x0FD0030E, 0xECC8C73E, 0xA4751E41,
+      0xE238CD99, 0x3BEA0E2F, 0x3280BBA1, 0x183EB331,
+      0x4E548B38, 0x4F6DB908, 0x6F420D03, 0xF60A04BF,
+      0x2CB81290, 0x24977C79, 0x5679B072, 0xBCAF89AF,
+      0xDE9A771F, 0xD9930810, 0xB38BAE12, 0xDCCF3F2E,
+      0x5512721F, 0x2E6B7124, 0x501ADDE6, 0x9F84CD87,
+      0x7A584718, 0x7408DA17, 0xBC9F9ABC, 0xE94B7D8C,
+      0xEC7AEC3A, 0xDB851DFA, 0x63094366, 0xC464C3D2,
+      0xEF1C1847, 0x3215D908, 0xDD433B37, 0x24C2BA16,
+      0x12A14D43, 0x2A65C451, 0x50940002, 0x133AE4DD,
+      0x71DFF89E, 0x10314E55, 0x81AC77D6, 0x5F11199B,
+      0x043556F1, 0xD7A3C76B, 0x3C11183B, 0x5924A509,
+      0xF28FE6ED, 0x97F1FBFA, 0x9EBABF2C, 0x1E153C6E,
+      0x86E34570, 0xEAE96FB1, 0x860E5E0A, 0x5A3E2AB3,
+      0x771FE71C, 0x4E3D06FA, 0x2965DCB9, 0x99E71D0F,
+      0x803E89D6, 0x5266C825, 0x2E4CC978, 0x9C10B36A,
+      0xC6150EBA, 0x94E2EA78, 0xA5FC3C53, 0x1E0A2DF4,
+      0xF2F74EA7, 0x361D2B3D, 0x1939260F, 0x19C27960,
+      0x5223A708, 0xF71312B6, 0xEBADFE6E, 0xEAC31F66,
+      0xE3BC4595, 0xA67BC883, 0xB17F37D1, 0x018CFF28,
+      0xC332DDEF, 0xBE6C5AA5, 0x65582185, 0x68AB9802,
+      0xEECEA50F, 0xDB2F953B, 0x2AEF7DAD, 0x5B6E2F84,
+      0x1521B628, 0x29076170, 0xECDD4775, 0x619F1510,
+      0x13CCA830, 0xEB61BD96, 0x0334FE1E, 0xAA0363CF,
+      0xB5735C90, 0x4C70A239, 0xD59E9E0B, 0xCBAADE14,
+      0xEECC86BC, 0x60622CA7, 0x9CAB5CAB, 0xB2F3846E,
+      0x648B1EAF, 0x19BDF0CA, 0xA02369B9, 0x655ABB50,
+      0x40685A32, 0x3C2AB4B3, 0x319EE9D5, 0xC021B8F7,
+      0x9B540B19, 0x875FA099, 0x95F7997E, 0x623D7DA8,
+      0xF837889A, 0x97E32D77, 0x11ED935F, 0x16681281,
+      0x0E358829, 0xC7E61FD6, 0x96DEDFA1, 0x7858BA99,
+      0x57F584A5, 0x1B227263, 0x9B83C3FF, 0x1AC24696,
+      0xCDB30AEB, 0x532E3054, 0x8FD948E4, 0x6DBC3128,
+      0x58EBF2EF, 0x34C6FFEA, 0xFE28ED61, 0xEE7C3C73,
+      0x5D4A14D9, 0xE864B7E3, 0x42105D14, 0x203E13E0,
+      0x45EEE2B6, 0xA3AAABEA, 0xDB6C4F15, 0xFACB4FD0,
+      0xC742F442, 0xEF6ABBB5, 0x654F3B1D, 0x41CD2105,
+      0xD81E799E, 0x86854DC7, 0xE44B476A, 0x3D816250,
+      0xCF62A1F2, 0x5B8D2646, 0xFC8883A0, 0xC1C7B6A3,
+      0x7F1524C3, 0x69CB7492, 0x47848A0B, 0x5692B285,
+      0x095BBF00, 0xAD19489D, 0x1462B174, 0x23820E00,
+      0x58428D2A, 0x0C55F5EA, 0x1DADF43E, 0x233F7061,
+      0x3372F092, 0x8D937E41, 0xD65FECF1, 0x6C223BDB,
+      0x7CDE3759, 0xCBEE7460, 0x4085F2A7, 0xCE77326E,
+      0xA6078084, 0x19F8509E, 0xE8EFD855, 0x61D99735,
+      0xA969A7AA, 0xC50C06C2, 0x5A04ABFC, 0x800BCADC,
+      0x9E447A2E, 0xC3453484, 0xFDD56705, 0x0E1E9EC9,
+      0xDB73DBD3, 0x105588CD, 0x675FDA79, 0xE3674340,
+      0xC5C43465, 0x713E38D8, 0x3D28F89E, 0xF16DFF20,
+      0x153E21E7, 0x8FB03D4A, 0xE6E39F2B, 0xDB83ADF7 },
+    { 0xE93D5A68, 0x948140F7, 0xF64C261C, 0x94692934,
+      0x411520F7, 0x7602D4F7, 0xBCF46B2E, 0xD4A20068,
+      0xD4082471, 0x3320F46A, 0x43B7D4B7, 0x500061AF,
+      0x1E39F62E, 0x97244546, 0x14214F74, 0xBF8B8840,
+      0x4D95FC1D, 0x96B591AF, 0x70F4DDD3, 0x66A02F45,
+      0xBFBC09EC, 0x03BD9785, 0x7FAC6DD0, 0x31CB8504,
+      0x96EB27B3, 0x55FD3941, 0xDA2547E6, 0xABCA0A9A,
+      0x28507825, 0x530429F4, 0x0A2C86DA, 0xE9B66DFB,
+      0x68DC1462, 0xD7486900, 0x680EC0A4, 0x27A18DEE,
+      0x4F3FFEA2, 0xE887AD8C, 0xB58CE006, 0x7AF4D6B6,
+      0xAACE1E7C, 0xD3375FEC, 0xCE78A399, 0x406B2A42,
+      0x20FE9E35, 0xD9F385B9, 0xEE39D7AB, 0x3B124E8B,
+      0x1DC9FAF7, 0x4B6D1856, 0x26A36631, 0xEAE397B2,
+      0x3A6EFA74, 0xDD5B4332, 0x6841E7F7, 0xCA7820FB,
+      0xFB0AF54E, 0xD8FEB397, 0x454056AC, 0xBA489527,
+      0x55533A3A, 0x20838D87, 0xFE6BA9B7, 0xD096954B,
+      0x55A867BC, 0xA1159A58, 0xCCA92963, 0x99E1DB33,
+      0xA62A4A56, 0x3F3125F9, 0x5EF47E1C, 0x9029317C,
+      0xFDF8E802, 0x04272F70, 0x80BB155C, 0x05282CE3,
+      0x95C11548, 0xE4C66D22, 0x48C1133F, 0xC70F86DC,
+      0x07F9C9EE, 0x41041F0F, 0x404779A4, 0x5D886E17,
+      0x325F51EB, 0xD59BC0D1, 0xF2BCC18F, 0x41113564,
+      0x257B7834, 0x602A9C60, 0xDFF8E8A3, 0x1F636C1B,
+      0x0E12B4C2, 0x02E1329E, 0xAF664FD1, 0xCAD18115,
+      0x6B2395E0, 0x333E92E1, 0x3B240B62, 0xEEBEB922,
+      0x85B2A20E, 0xE6BA0D99, 0xDE720C8C, 0x2DA2F728,
+      0xD0127845, 0x95B794FD, 0x647D0862, 0xE7CCF5F0,
+      0x5449A36F, 0x877D48FA, 0xC39DFD27, 0xF33E8D1E,
+      0x0A476341, 0x992EFF74, 0x3A6F6EAB, 0xF4F8FD37,
+      0xA812DC60, 0xA1EBDDF8, 0x991BE14C, 0xDB6E6B0D,
+      0xC67B5510, 0x6D672C37, 0x2765D43B, 0xDCD0E804,
+      0xF1290DC7, 0xCC00FFA3, 0xB5390F92, 0x690FED0B,
+      0x667B9FFB, 0xCEDB7D9C, 0xA091CF0B, 0xD9155EA3,
+      0xBB132F88, 0x515BAD24, 0x7B9479BF, 0x763BD6EB,
+      0x37392EB3, 0xCC115979, 0x8026E297, 0xF42E312D,
+      0x6842ADA7, 0xC66A2B3B, 0x12754CCC, 0x782EF11C,
+      0x6A124237, 0xB79251E7, 0x06A1BBE6, 0x4BFB6350,
+      0x1A6B1018, 0x11CAEDFA, 0x3D25BDD8, 0xE2E1C3C9,
+      0x44421659, 0x0A121386, 0xD90CEC6E, 0xD5ABEA2A,
+      0x64AF674E, 0xDA86A85F, 0xBEBFE988, 0x64E4C3FE,
+      0x9DBC8057, 0xF0F7C086, 0x60787BF8, 0x6003604D,
+      0xD1FD8346, 0xF6381FB0, 0x7745AE04, 0xD736FCCC,
+      0x83426B33, 0xF01EAB71, 0xB0804187, 0x3C005E5F,
+      0x77A057BE, 0xBDE8AE24, 0x55464299, 0xBF582E61,
+      0x4E58F48F, 0xF2DDFDA2, 0xF474EF38, 0x8789BDC2,
+      0x5366F9C3, 0xC8B38E74, 0xB475F255, 0x46FCD9B9,
+      0x7AEB2661, 0x8B1DDF84, 0x846A0E79, 0x915F95E2,
+      0x466E598E, 0x20B45770, 0x8CD55591, 0xC902DE4C,
+      0xB90BACE1, 0xBB8205D0, 0x11A86248, 0x7574A99E,
+      0xB77F19B6, 0xE0A9DC09, 0x662D09A1, 0xC4324633,
+      0xE85A1F02, 0x09F0BE8C, 0x4A99A025, 0x1D6EFE10,
+      0x1AB93D1D, 0x0BA5A4DF, 0xA186F20F, 0x2868F169,
+      0xDCB7DA83, 0x573906FE, 0xA1E2CE9B, 0x4FCD7F52,
+      0x50115E01, 0xA70683FA, 0xA002B5C4, 0x0DE6D027,
+      0x9AF88C27, 0x773F8641, 0xC3604C06, 0x61A806B5,
+      0xF0177A28, 0xC0F586E0, 0x006058AA, 0x30DC7D62,
+      0x11E69ED7, 0x2338EA63, 0x53C2DD94, 0xC2C21634,
+      0xBBCBEE56, 0x90BCB6DE, 0xEBFC7DA1, 0xCE591D76,
+      0x6F05E409, 0x4B7C0188, 0x39720A3D, 0x7C927C24,
+      0x86E3725F, 0x724D9DB9, 0x1AC15BB4, 0xD39EB8FC,
+      0xED545578, 0x08FCA5B5, 0xD83D7CD3, 0x4DAD0FC4,
+      0x1E50EF5E, 0xB161E6F8, 0xA28514D9, 0x6C51133C,
+      0x6FD5C7E7, 0x56E14EC4, 0x362ABFCE, 0xDDC6C837,
+      0xD79A3234, 0x92638212, 0x670EFA8E, 0x406000E0 },
+    { 0x3A39CE37, 0xD3FAF5CF, 0xABC27737, 0x5AC52D1B,
+      0x5CB0679E, 0x4FA33742, 0xD3822740, 0x99BC9BBE,
+      0xD5118E9D, 0xBF0F7315, 0xD62D1C7E, 0xC700C47B,
+      0xB78C1B6B, 0x21A19045, 0xB26EB1BE, 0x6A366EB4,
+      0x5748AB2F, 0xBC946E79, 0xC6A376D2, 0x6549C2C8,
+      0x530FF8EE, 0x468DDE7D, 0xD5730A1D, 0x4CD04DC6,
+      0x2939BBDB, 0xA9BA4650, 0xAC9526E8, 0xBE5EE304,
+      0xA1FAD5F0, 0x6A2D519A, 0x63EF8CE2, 0x9A86EE22,
+      0xC089C2B8, 0x43242EF6, 0xA51E03AA, 0x9CF2D0A4,
+      0x83C061BA, 0x9BE96A4D, 0x8FE51550, 0xBA645BD6,
+      0x2826A2F9, 0xA73A3AE1, 0x4BA99586, 0xEF5562E9,
+      0xC72FEFD3, 0xF752F7DA, 0x3F046F69, 0x77FA0A59,
+      0x80E4A915, 0x87B08601, 0x9B09E6AD, 0x3B3EE593,
+      0xE990FD5A, 0x9E34D797, 0x2CF0B7D9, 0x022B8B51,
+      0x96D5AC3A, 0x017DA67D, 0xD1CF3ED6, 0x7C7D2D28,
+      0x1F9F25CF, 0xADF2B89B, 0x5AD6B472, 0x5A88F54C,
+      0xE029AC71, 0xE019A5E6, 0x47B0ACFD, 0xED93FA9B,
+      0xE8D3C48D, 0x283B57CC, 0xF8D56629, 0x79132E28,
+      0x785F0191, 0xED756055, 0xF7960E44, 0xE3D35E8C,
+      0x15056DD4, 0x88F46DBA, 0x03A16125, 0x0564F0BD,
+      0xC3EB9E15, 0x3C9057A2, 0x97271AEC, 0xA93A072A,
+      0x1B3F6D9B, 0x1E6321F5, 0xF59C66FB, 0x26DCF319,
+      0x7533D928, 0xB155FDF5, 0x03563482, 0x8ABA3CBB,
+      0x28517711, 0xC20AD9F8, 0xABCC5167, 0xCCAD925F,
+      0x4DE81751, 0x3830DC8E, 0x379D5862, 0x9320F991,
+      0xEA7A90C2, 0xFB3E7BCE, 0x5121CE64, 0x774FBE32,
+      0xA8B6E37E, 0xC3293D46, 0x48DE5369, 0x6413E680,
+      0xA2AE0810, 0xDD6DB224, 0x69852DFD, 0x09072166,
+      0xB39A460A, 0x6445C0DD, 0x586CDECF, 0x1C20C8AE,
+      0x5BBEF7DD, 0x1B588D40, 0xCCD2017F, 0x6BB4E3BB,
+      0xDDA26A7E, 0x3A59FF45, 0x3E350A44, 0xBCB4CDD5,
+      0x72EACEA8, 0xFA6484BB, 0x8D6612AE, 0xBF3C6F47,
+      0xD29BE463, 0x542F5D9E, 0xAEC2771B, 0xF64E6370,
+      0x740E0D8D, 0xE75B1357, 0xF8721671, 0xAF537D5D,
+      0x4040CB08, 0x4EB4E2CC, 0x34D2466A, 0x0115AF84,
+      0xE1B00428, 0x95983A1D, 0x06B89FB4, 0xCE6EA048,
+      0x6F3F3B82, 0x3520AB82, 0x011A1D4B, 0x277227F8,
+      0x611560B1, 0xE7933FDC, 0xBB3A792B, 0x344525BD,
+      0xA08839E1, 0x51CE794B, 0x2F32C9B7, 0xA01FBAC9,
+      0xE01CC87E, 0xBCC7D1F6, 0xCF0111C3, 0xA1E8AAC7,
+      0x1A908749, 0xD44FBD9A, 0xD0DADECB, 0xD50ADA38,
+      0x0339C32A, 0xC6913667, 0x8DF9317C, 0xE0B12B4F,
+      0xF79E59B7, 0x43F5BB3A, 0xF2D519FF, 0x27D9459C,
+      0xBF97222C, 0x15E6FC2A, 0x0F91FC71, 0x9B941525,
+      0xFAE59361, 0xCEB69CEB, 0xC2A86459, 0x12BAA8D1,
+      0xB6C1075E, 0xE3056A0C, 0x10D25065, 0xCB03A442,
+      0xE0EC6E0E, 0x1698DB3B, 0x4C98A0BE, 0x3278E964,
+      0x9F1F9532, 0xE0D392DF, 0xD3A0342B, 0x8971F21E,
+      0x1B0A7441, 0x4BA3348C, 0xC5BE7120, 0xC37632D8,
+      0xDF359F8D, 0x9B992F2E, 0xE60B6F47, 0x0FE3F11D,
+      0xE54CDA54, 0x1EDAD891, 0xCE6279CF, 0xCD3E7E6F,
+      0x1618B166, 0xFD2C1D05, 0x848FD2C5, 0xF6FB2299,
+      0xF523F357, 0xA6327623, 0x93A83531, 0x56CCCD02,
+      0xACF08162, 0x5A75EBB5, 0x6E163697, 0x88D273CC,
+      0xDE966292, 0x81B949D0, 0x4C50901B, 0x71C65614,
+      0xE6C6C7BD, 0x327A140A, 0x45E1D006, 0xC3F27B9A,
+      0xC9AA53FD, 0x62A80F00, 0xBB25BFE2, 0x35BDD2F6,
+      0x71126905, 0xB2040222, 0xB6CBCF7C, 0xCD769C2B,
+      0x53113EC0, 0x1640E3D3, 0x38ABBD60, 0x2547ADF0,
+      0xBA38209C, 0xF746CE76, 0x77AFA1C5, 0x20756060,
+      0x85CBFE4E, 0x8AE88DD8, 0x7AAAF9B0, 0x4CF9AA7E,
+      0x1948C25C, 0x02FB8A8C, 0x01C36AE4, 0xD6EBE1F9,
+      0x90D4F869, 0xA65CDEA0, 0x3F09252D, 0xC208E69F,
+      0xB74E6132, 0xCE77E25B, 0x578FDFE3, 0x3AC372E6 }
+};
+
+#define F(Xl, Xr, P) \
+    Xr ^=((( ctx->s[0][ Xl >> 24        ] \
+           + ctx->s[1][(Xl >> 16) & 0xFF])\
+           ^ ctx->s[2][(Xl >>  8) & 0xFF])\
+           + ctx->s[3][ Xl        & 0xFF])\
+           ^ P;
+
+AVBlowfish *av_blowfish_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVBlowfish));
+}
+
+av_cold void av_blowfish_init(AVBlowfish *ctx, const uint8_t *key, int key_len)
+{
+    uint32_t data, data_l, data_r;
+    int i, j, k;
+
+    memcpy(ctx->s, orig_s, sizeof(orig_s));
+
+    j = 0;
+    for (i = 0; i < AV_BF_ROUNDS + 2; ++i) {
+        data = 0;
+        for (k = 0; k < 4; k++) {
+            data = (data << 8) | key[j];
+            if (++j >= key_len)
+                j = 0;
+        }
+        ctx->p[i] = orig_p[i] ^ data;
+    }
+
+    data_l = data_r = 0;
+
+    for (i = 0; i < AV_BF_ROUNDS + 2; i += 2) {
+        av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);
+        ctx->p[i]     = data_l;
+        ctx->p[i + 1] = data_r;
+    }
+
+    for (i = 0; i < 4; ++i) {
+        for (j = 0; j < 256; j += 2) {
+            av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);
+            ctx->s[i][j]     = data_l;
+            ctx->s[i][j + 1] = data_r;
+        }
+    }
+}
+
+void av_blowfish_crypt_ecb(AVBlowfish *ctx, uint32_t *xl, uint32_t *xr,
+                           int decrypt)
+{
+    uint32_t Xl, Xr;
+    int i;
+
+    Xl = *xl;
+    Xr = *xr;
+
+    if (decrypt) {
+        Xl ^= ctx->p[AV_BF_ROUNDS + 1];
+        for (i = AV_BF_ROUNDS; i > 0; i-=2) {
+            F(Xl, Xr, ctx->p[i  ]);
+            F(Xr, Xl, ctx->p[i-1]);
+        }
+
+        Xr ^= ctx->p[0];
+    } else {
+        Xl ^= ctx->p[0];
+        for (i = 1; i < AV_BF_ROUNDS+1; i+=2){
+            F(Xl, Xr, ctx->p[i  ]);
+            F(Xr, Xl, ctx->p[i+1]);
+        }
+
+        Xr ^= ctx->p[AV_BF_ROUNDS + 1];
+    }
+
+    *xl = Xr;
+    *xr = Xl;
+}
+
+void av_blowfish_crypt(AVBlowfish *ctx, uint8_t *dst, const uint8_t *src,
+                       int count, uint8_t *iv, int decrypt)
+{
+    uint32_t v0, v1;
+    int i;
+
+    if (decrypt) {
+        while (count--) {
+            v0 = AV_RB32(src);
+            v1 = AV_RB32(src + 4);
+
+            av_blowfish_crypt_ecb(ctx, &v0, &v1, decrypt);
+
+            if (iv) {
+                v0 ^= AV_RB32(iv);
+                v1 ^= AV_RB32(iv + 4);
+                memcpy(iv, src, 8);
+            }
+
+            AV_WB32(dst, v0);
+            AV_WB32(dst + 4, v1);
+
+            src   += 8;
+            dst   += 8;
+        }
+    } else {
+        while (count--) {
+            if (iv) {
+                for (i = 0; i < 8; i++)
+                    dst[i] = src[i] ^ iv[i];
+                v0 = AV_RB32(dst);
+                v1 = AV_RB32(dst + 4);
+            } else {
+                v0 = AV_RB32(src);
+                v1 = AV_RB32(src + 4);
+            }
+
+            av_blowfish_crypt_ecb(ctx, &v0, &v1, decrypt);
+
+            AV_WB32(dst, v0);
+            AV_WB32(dst + 4, v1);
+
+            if (iv)
+                memcpy(iv, dst, 8);
+
+            src   += 8;
+            dst   += 8;
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/blowfish.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/blowfish.h
new file mode 100644
index 000000000..9e289a40d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/blowfish.h
@@ -0,0 +1,82 @@
+/*
+ * Blowfish algorithm
+ * Copyright (c) 2012 Samuel Pitoiset
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_BLOWFISH_H
+#define AVUTIL_BLOWFISH_H
+
+#include <stdint.h>
+
+/**
+ * @defgroup lavu_blowfish Blowfish
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+#define AV_BF_ROUNDS 16
+
+typedef struct AVBlowfish {
+    uint32_t p[AV_BF_ROUNDS + 2];
+    uint32_t s[4][256];
+} AVBlowfish;
+
+/**
+ * Allocate an AVBlowfish context.
+ */
+AVBlowfish *av_blowfish_alloc(void);
+
+/**
+ * Initialize an AVBlowfish context.
+ *
+ * @param ctx an AVBlowfish context
+ * @param key a key
+ * @param key_len length of the key
+ */
+void av_blowfish_init(struct AVBlowfish *ctx, const uint8_t *key, int key_len);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context.
+ *
+ * @param ctx an AVBlowfish context
+ * @param xl left four bytes halves of input to be encrypted
+ * @param xr right four bytes halves of input to be encrypted
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_blowfish_crypt_ecb(struct AVBlowfish *ctx, uint32_t *xl, uint32_t *xr,
+                           int decrypt);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context.
+ *
+ * @param ctx an AVBlowfish context
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst
+ * @param count number of 8 byte blocks
+ * @param iv initialization vector for CBC mode, if NULL ECB will be used
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_blowfish_crypt(struct AVBlowfish *ctx, uint8_t *dst, const uint8_t *src,
+                       int count, uint8_t *iv, int decrypt);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_BLOWFISH_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/bprint.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/bprint.c
new file mode 100644
index 000000000..2f059c5ba
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/bprint.c
@@ -0,0 +1,305 @@
+/*
+ * Copyright (c) 2012 Nicolas George
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include "avassert.h"
+#include "avstring.h"
+#include "bprint.h"
+#include "common.h"
+#include "compat/va_copy.h"
+#include "error.h"
+#include "mem.h"
+
+#define av_bprint_room(buf) ((buf)->size - FFMIN((buf)->len, (buf)->size))
+#define av_bprint_is_allocated(buf) ((buf)->str != (buf)->reserved_internal_buffer)
+
+static int av_bprint_alloc(AVBPrint *buf, unsigned room)
+{
+    char *old_str, *new_str;
+    unsigned min_size, new_size;
+
+    if (buf->size == buf->size_max)
+        return AVERROR(EIO);
+    if (!av_bprint_is_complete(buf))
+        return AVERROR_INVALIDDATA; /* it is already truncated anyway */
+    min_size = buf->len + 1 + FFMIN(UINT_MAX - buf->len - 1, room);
+    new_size = buf->size > buf->size_max / 2 ? buf->size_max : buf->size * 2;
+    if (new_size < min_size)
+        new_size = FFMIN(buf->size_max, min_size);
+    old_str = av_bprint_is_allocated(buf) ? buf->str : NULL;
+    new_str = av_realloc(old_str, new_size);
+    if (!new_str)
+        return AVERROR(ENOMEM);
+    if (!old_str)
+        memcpy(new_str, buf->str, buf->len + 1);
+    buf->str  = new_str;
+    buf->size = new_size;
+    return 0;
+}
+
+static void av_bprint_grow(AVBPrint *buf, unsigned extra_len)
+{
+    /* arbitrary margin to avoid small overflows */
+    extra_len = FFMIN(extra_len, UINT_MAX - 5 - buf->len);
+    buf->len += extra_len;
+    if (buf->size)
+        buf->str[FFMIN(buf->len, buf->size - 1)] = 0;
+}
+
+void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max)
+{
+    unsigned size_auto = (char *)buf + sizeof(*buf) -
+                         buf->reserved_internal_buffer;
+
+    if (size_max == 1)
+        size_max = size_auto;
+    buf->str      = buf->reserved_internal_buffer;
+    buf->len      = 0;
+    buf->size     = FFMIN(size_auto, size_max);
+    buf->size_max = size_max;
+    *buf->str = 0;
+    if (size_init > buf->size)
+        av_bprint_alloc(buf, size_init - 1);
+}
+
+void av_bprint_init_for_buffer(AVBPrint *buf, char *buffer, unsigned size)
+{
+    buf->str      = buffer;
+    buf->len      = 0;
+    buf->size     = size;
+    buf->size_max = size;
+    *buf->str = 0;
+}
+
+void av_bprintf(AVBPrint *buf, const char *fmt, ...)
+{
+    unsigned room;
+    char *dst;
+    va_list vl;
+    int extra_len;
+
+    while (1) {
+        room = av_bprint_room(buf);
+        dst = room ? buf->str + buf->len : NULL;
+        va_start(vl, fmt);
+        extra_len = vsnprintf(dst, room, fmt, vl);
+        va_end(vl);
+        if (extra_len <= 0)
+            return;
+        if (extra_len < room)
+            break;
+        if (av_bprint_alloc(buf, extra_len))
+            break;
+    }
+    av_bprint_grow(buf, extra_len);
+}
+
+void av_vbprintf(AVBPrint *buf, const char *fmt, va_list vl_arg)
+{
+    unsigned room;
+    char *dst;
+    int extra_len;
+    va_list vl;
+
+    while (1) {
+        room = av_bprint_room(buf);
+        dst = room ? buf->str + buf->len : NULL;
+        va_copy(vl, vl_arg);
+        extra_len = vsnprintf(dst, room, fmt, vl);
+        va_end(vl);
+        if (extra_len <= 0)
+            return;
+        if (extra_len < room)
+            break;
+        if (av_bprint_alloc(buf, extra_len))
+            break;
+    }
+    av_bprint_grow(buf, extra_len);
+}
+
+void av_bprint_chars(AVBPrint *buf, char c, unsigned n)
+{
+    unsigned room, real_n;
+
+    while (1) {
+        room = av_bprint_room(buf);
+        if (n < room)
+            break;
+        if (av_bprint_alloc(buf, n))
+            break;
+    }
+    if (room) {
+        real_n = FFMIN(n, room - 1);
+        memset(buf->str + buf->len, c, real_n);
+    }
+    av_bprint_grow(buf, n);
+}
+
+void av_bprint_append_data(AVBPrint *buf, const char *data, unsigned size)
+{
+    unsigned room, real_n;
+
+    while (1) {
+        room = av_bprint_room(buf);
+        if (size < room)
+            break;
+        if (av_bprint_alloc(buf, size))
+            break;
+    }
+    if (room) {
+        real_n = FFMIN(size, room - 1);
+        memcpy(buf->str + buf->len, data, real_n);
+    }
+    av_bprint_grow(buf, size);
+}
+
+void av_bprint_strftime(AVBPrint *buf, const char *fmt, const struct tm *tm)
+{
+    unsigned room;
+    size_t l;
+
+    if (!*fmt)
+        return;
+    while (1) {
+        room = av_bprint_room(buf);
+        if (room && (l = strftime(buf->str + buf->len, room, fmt, tm)))
+            break;
+        /* strftime does not tell us how much room it would need: let us
+           retry with twice as much until the buffer is large enough */
+        room = !room ? strlen(fmt) + 1 :
+               room <= INT_MAX / 2 ? room * 2 : INT_MAX;
+        if (av_bprint_alloc(buf, room)) {
+            /* impossible to grow, try to manage something useful anyway */
+            room = av_bprint_room(buf);
+            if (room < 1024) {
+                /* if strftime fails because the buffer has (almost) reached
+                   its maximum size, let us try in a local buffer; 1k should
+                   be enough to format any real date+time string */
+                char buf2[1024];
+                if ((l = strftime(buf2, sizeof(buf2), fmt, tm))) {
+                    av_bprintf(buf, "%s", buf2);
+                    return;
+                }
+            }
+            if (room) {
+                /* if anything else failed and the buffer is not already
+                   truncated, let us add a stock string and force truncation */
+                static const char txt[] = "[truncated strftime output]";
+                memset(buf->str + buf->len, '!', room);
+                memcpy(buf->str + buf->len, txt, FFMIN(sizeof(txt) - 1, room));
+                av_bprint_grow(buf, room); /* force truncation */
+            }
+            return;
+        }
+    }
+    av_bprint_grow(buf, l);
+}
+
+void av_bprint_get_buffer(AVBPrint *buf, unsigned size,
+                          unsigned char **mem, unsigned *actual_size)
+{
+    if (size > av_bprint_room(buf))
+        av_bprint_alloc(buf, size);
+    *actual_size = av_bprint_room(buf);
+    *mem = *actual_size ? buf->str + buf->len : NULL;
+}
+
+void av_bprint_clear(AVBPrint *buf)
+{
+    if (buf->len) {
+        *buf->str = 0;
+        buf->len  = 0;
+    }
+}
+
+int av_bprint_finalize(AVBPrint *buf, char **ret_str)
+{
+    unsigned real_size = FFMIN(buf->len + 1, buf->size);
+    char *str;
+    int ret = 0;
+
+    if (ret_str) {
+        if (av_bprint_is_allocated(buf)) {
+            str = av_realloc(buf->str, real_size);
+            if (!str)
+                str = buf->str;
+            buf->str = NULL;
+        } else {
+            str = av_malloc(real_size);
+            if (str)
+                memcpy(str, buf->str, real_size);
+            else
+                ret = AVERROR(ENOMEM);
+        }
+        *ret_str = str;
+    } else {
+        if (av_bprint_is_allocated(buf))
+            av_freep(&buf->str);
+    }
+    buf->size = real_size;
+    return ret;
+}
+
+#define WHITESPACES " \n\t\r"
+
+void av_bprint_escape(AVBPrint *dstbuf, const char *src, const char *special_chars,
+                      enum AVEscapeMode mode, int flags)
+{
+    const char *src0 = src;
+
+    if (mode == AV_ESCAPE_MODE_AUTO)
+        mode = AV_ESCAPE_MODE_BACKSLASH; /* TODO: implement a heuristic */
+
+    switch (mode) {
+    case AV_ESCAPE_MODE_QUOTE:
+        /* enclose the string between '' */
+        av_bprint_chars(dstbuf, '\'', 1);
+        for (; *src; src++) {
+            if (*src == '\'')
+                av_bprintf(dstbuf, "'\\''");
+            else
+                av_bprint_chars(dstbuf, *src, 1);
+        }
+        av_bprint_chars(dstbuf, '\'', 1);
+        break;
+
+    /* case AV_ESCAPE_MODE_BACKSLASH or unknown mode */
+    default:
+        /* \-escape characters */
+        for (; *src; src++) {
+            int is_first_last       = src == src0 || !*(src+1);
+            int is_ws               = !!strchr(WHITESPACES, *src);
+            int is_strictly_special = special_chars && strchr(special_chars, *src);
+            int is_special          =
+                is_strictly_special || strchr("'\\", *src) ||
+                (is_ws && (flags & AV_ESCAPE_FLAG_WHITESPACE));
+
+            if (is_strictly_special ||
+                (!(flags & AV_ESCAPE_FLAG_STRICT) &&
+                 (is_special || (is_ws && is_first_last))))
+                av_bprint_chars(dstbuf, '\\', 1);
+            av_bprint_chars(dstbuf, *src, 1);
+        }
+        break;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/bprint.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/bprint.h
new file mode 100644
index 000000000..c09b1ac1e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/bprint.h
@@ -0,0 +1,219 @@
+/*
+ * Copyright (c) 2012 Nicolas George
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_BPRINT_H
+#define AVUTIL_BPRINT_H
+
+#include <stdarg.h>
+
+#include "attributes.h"
+#include "avstring.h"
+
+/**
+ * Define a structure with extra padding to a fixed size
+ * This helps ensuring binary compatibility with future versions.
+ */
+
+#define FF_PAD_STRUCTURE(name, size, ...) \
+struct ff_pad_helper_##name { __VA_ARGS__ }; \
+typedef struct name { \
+    __VA_ARGS__ \
+    char reserved_padding[size - sizeof(struct ff_pad_helper_##name)]; \
+} name;
+
+/**
+ * Buffer to print data progressively
+ *
+ * The string buffer grows as necessary and is always 0-terminated.
+ * The content of the string is never accessed, and thus is
+ * encoding-agnostic and can even hold binary data.
+ *
+ * Small buffers are kept in the structure itself, and thus require no
+ * memory allocation at all (unless the contents of the buffer is needed
+ * after the structure goes out of scope). This is almost as lightweight as
+ * declaring a local "char buf[512]".
+ *
+ * The length of the string can go beyond the allocated size: the buffer is
+ * then truncated, but the functions still keep account of the actual total
+ * length.
+ *
+ * In other words, buf->len can be greater than buf->size and records the
+ * total length of what would have been to the buffer if there had been
+ * enough memory.
+ *
+ * Append operations do not need to be tested for failure: if a memory
+ * allocation fails, data stop being appended to the buffer, but the length
+ * is still updated. This situation can be tested with
+ * av_bprint_is_complete().
+ *
+ * The size_max field determines several possible behaviours:
+ *
+ * size_max = -1 (= UINT_MAX) or any large value will let the buffer be
+ * reallocated as necessary, with an amortized linear cost.
+ *
+ * size_max = 0 prevents writing anything to the buffer: only the total
+ * length is computed. The write operations can then possibly be repeated in
+ * a buffer with exactly the necessary size
+ * (using size_init = size_max = len + 1).
+ *
+ * size_max = 1 is automatically replaced by the exact size available in the
+ * structure itself, thus ensuring no dynamic memory allocation. The
+ * internal buffer is large enough to hold a reasonable paragraph of text,
+ * such as the current paragraph.
+ */
+
+FF_PAD_STRUCTURE(AVBPrint, 1024,
+    char *str;         /**< string so far */
+    unsigned len;      /**< length so far */
+    unsigned size;     /**< allocated memory */
+    unsigned size_max; /**< maximum allocated memory */
+    char reserved_internal_buffer[1];
+)
+
+/**
+ * Convenience macros for special values for av_bprint_init() size_max
+ * parameter.
+ */
+#define AV_BPRINT_SIZE_UNLIMITED  ((unsigned)-1)
+#define AV_BPRINT_SIZE_AUTOMATIC  1
+#define AV_BPRINT_SIZE_COUNT_ONLY 0
+
+/**
+ * Init a print buffer.
+ *
+ * @param buf        buffer to init
+ * @param size_init  initial size (including the final 0)
+ * @param size_max   maximum size;
+ *                   0 means do not write anything, just count the length;
+ *                   1 is replaced by the maximum value for automatic storage;
+ *                   any large value means that the internal buffer will be
+ *                   reallocated as needed up to that limit; -1 is converted to
+ *                   UINT_MAX, the largest limit possible.
+ *                   Check also AV_BPRINT_SIZE_* macros.
+ */
+void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max);
+
+/**
+ * Init a print buffer using a pre-existing buffer.
+ *
+ * The buffer will not be reallocated.
+ *
+ * @param buf     buffer structure to init
+ * @param buffer  byte buffer to use for the string data
+ * @param size    size of buffer
+ */
+void av_bprint_init_for_buffer(AVBPrint *buf, char *buffer, unsigned size);
+
+/**
+ * Append a formatted string to a print buffer.
+ */
+void av_bprintf(AVBPrint *buf, const char *fmt, ...) av_printf_format(2, 3);
+
+/**
+ * Append a formatted string to a print buffer.
+ */
+void av_vbprintf(AVBPrint *buf, const char *fmt, va_list vl_arg);
+
+/**
+ * Append char c n times to a print buffer.
+ */
+void av_bprint_chars(AVBPrint *buf, char c, unsigned n);
+
+/**
+ * Append data to a print buffer.
+ *
+ * param buf  bprint buffer to use
+ * param data pointer to data
+ * param size size of data
+ */
+void av_bprint_append_data(AVBPrint *buf, const char *data, unsigned size);
+
+struct tm;
+/**
+ * Append a formatted date and time to a print buffer.
+ *
+ * param buf  bprint buffer to use
+ * param fmt  date and time format string, see strftime()
+ * param tm   broken-down time structure to translate
+ *
+ * @note due to poor design of the standard strftime function, it may
+ * produce poor results if the format string expands to a very long text and
+ * the bprint buffer is near the limit stated by the size_max option.
+ */
+void av_bprint_strftime(AVBPrint *buf, const char *fmt, const struct tm *tm);
+
+/**
+ * Allocate bytes in the buffer for external use.
+ *
+ * @param[in]  buf          buffer structure
+ * @param[in]  size         required size
+ * @param[out] mem          pointer to the memory area
+ * @param[out] actual_size  size of the memory area after allocation;
+ *                          can be larger or smaller than size
+ */
+void av_bprint_get_buffer(AVBPrint *buf, unsigned size,
+                          unsigned char **mem, unsigned *actual_size);
+
+/**
+ * Reset the string to "" but keep internal allocated data.
+ */
+void av_bprint_clear(AVBPrint *buf);
+
+/**
+ * Test if the print buffer is complete (not truncated).
+ *
+ * It may have been truncated due to a memory allocation failure
+ * or the size_max limit (compare size and size_max if necessary).
+ */
+static inline int av_bprint_is_complete(const AVBPrint *buf)
+{
+    return buf->len < buf->size;
+}
+
+/**
+ * Finalize a print buffer.
+ *
+ * The print buffer can no longer be used afterwards,
+ * but the len and size fields are still valid.
+ *
+ * @arg[out] ret_str  if not NULL, used to return a permanent copy of the
+ *                    buffer contents, or NULL if memory allocation fails;
+ *                    if NULL, the buffer is discarded and freed
+ * @return  0 for success or error code (probably AVERROR(ENOMEM))
+ */
+int av_bprint_finalize(AVBPrint *buf, char **ret_str);
+
+/**
+ * Escape the content in src and append it to dstbuf.
+ *
+ * @param dstbuf        already inited destination bprint buffer
+ * @param src           string containing the text to escape
+ * @param special_chars string containing the special characters which
+ *                      need to be escaped, can be NULL
+ * @param mode          escape mode to employ, see AV_ESCAPE_MODE_* macros.
+ *                      Any unknown value for mode will be considered equivalent to
+ *                      AV_ESCAPE_MODE_BACKSLASH, but this behaviour can change without
+ *                      notice.
+ * @param flags         flags which control how to escape, see AV_ESCAPE_FLAG_* macros
+ */
+void av_bprint_escape(AVBPrint *dstbuf, const char *src, const char *special_chars,
+                      enum AVEscapeMode mode, int flags);
+
+#endif /* AVUTIL_BPRINT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/bswap.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/bswap.h
new file mode 100644
index 000000000..91cb79538
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/bswap.h
@@ -0,0 +1,109 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * byte swapping routines
+ */
+
+#ifndef AVUTIL_BSWAP_H
+#define AVUTIL_BSWAP_H
+
+#include <stdint.h>
+#include "libavutil/avconfig.h"
+#include "attributes.h"
+
+#ifdef HAVE_AV_CONFIG_H
+
+#include "config.h"
+
+#if   ARCH_AARCH64
+#   include "aarch64/bswap.h"
+#elif ARCH_ARM
+#   include "arm/bswap.h"
+#elif ARCH_AVR32
+#   include "avr32/bswap.h"
+#elif ARCH_SH4
+#   include "sh4/bswap.h"
+#elif ARCH_X86
+#   include "x86/bswap.h"
+#endif
+
+#endif /* HAVE_AV_CONFIG_H */
+
+#define AV_BSWAP16C(x) (((x) << 8 & 0xff00)  | ((x) >> 8 & 0x00ff))
+#define AV_BSWAP32C(x) (AV_BSWAP16C(x) << 16 | AV_BSWAP16C((x) >> 16))
+#define AV_BSWAP64C(x) (AV_BSWAP32C(x) << 32 | AV_BSWAP32C((x) >> 32))
+
+#define AV_BSWAPC(s, x) AV_BSWAP##s##C(x)
+
+#ifndef av_bswap16
+static av_always_inline av_const uint16_t av_bswap16(uint16_t x)
+{
+    x= (x>>8) | (x<<8);
+    return x;
+}
+#endif
+
+#ifndef av_bswap32
+static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
+{
+    return AV_BSWAP32C(x);
+}
+#endif
+
+#ifndef av_bswap64
+static inline uint64_t av_const av_bswap64(uint64_t x)
+{
+    return (uint64_t)av_bswap32(x) << 32 | av_bswap32(x >> 32);
+}
+#endif
+
+// be2ne ... big-endian to native-endian
+// le2ne ... little-endian to native-endian
+
+#if AV_HAVE_BIGENDIAN
+#define av_be2ne16(x) (x)
+#define av_be2ne32(x) (x)
+#define av_be2ne64(x) (x)
+#define av_le2ne16(x) av_bswap16(x)
+#define av_le2ne32(x) av_bswap32(x)
+#define av_le2ne64(x) av_bswap64(x)
+#define AV_BE2NEC(s, x) (x)
+#define AV_LE2NEC(s, x) AV_BSWAPC(s, x)
+#else
+#define av_be2ne16(x) av_bswap16(x)
+#define av_be2ne32(x) av_bswap32(x)
+#define av_be2ne64(x) av_bswap64(x)
+#define av_le2ne16(x) (x)
+#define av_le2ne32(x) (x)
+#define av_le2ne64(x) (x)
+#define AV_BE2NEC(s, x) AV_BSWAPC(s, x)
+#define AV_LE2NEC(s, x) (x)
+#endif
+
+#define AV_BE2NE16C(x) AV_BE2NEC(16, x)
+#define AV_BE2NE32C(x) AV_BE2NEC(32, x)
+#define AV_BE2NE64C(x) AV_BE2NEC(64, x)
+#define AV_LE2NE16C(x) AV_LE2NEC(16, x)
+#define AV_LE2NE32C(x) AV_LE2NEC(32, x)
+#define AV_LE2NE64C(x) AV_LE2NEC(64, x)
+
+#endif /* AVUTIL_BSWAP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/buffer.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/buffer.c
new file mode 100644
index 000000000..8d1aa5fa8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/buffer.c
@@ -0,0 +1,357 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdatomic.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "buffer_internal.h"
+#include "common.h"
+#include "mem.h"
+#include "thread.h"
+
+AVBufferRef *av_buffer_create(uint8_t *data, int size,
+                              void (*free)(void *opaque, uint8_t *data),
+                              void *opaque, int flags)
+{
+    AVBufferRef *ref = NULL;
+    AVBuffer    *buf = NULL;
+
+    buf = av_mallocz(sizeof(*buf));
+    if (!buf)
+        return NULL;
+
+    buf->data     = data;
+    buf->size     = size;
+    buf->free     = free ? free : av_buffer_default_free;
+    buf->opaque   = opaque;
+
+    atomic_init(&buf->refcount, 1);
+
+    if (flags & AV_BUFFER_FLAG_READONLY)
+        buf->flags |= BUFFER_FLAG_READONLY;
+
+    ref = av_mallocz(sizeof(*ref));
+    if (!ref) {
+        av_freep(&buf);
+        return NULL;
+    }
+
+    ref->buffer = buf;
+    ref->data   = data;
+    ref->size   = size;
+
+    return ref;
+}
+
+void av_buffer_default_free(void *opaque, uint8_t *data)
+{
+    av_free(data);
+}
+
+AVBufferRef *av_buffer_alloc(int size)
+{
+    AVBufferRef *ret = NULL;
+    uint8_t    *data = NULL;
+
+    data = av_malloc(size);
+    if (!data)
+        return NULL;
+
+    ret = av_buffer_create(data, size, av_buffer_default_free, NULL, 0);
+    if (!ret)
+        av_freep(&data);
+
+    return ret;
+}
+
+AVBufferRef *av_buffer_allocz(int size)
+{
+    AVBufferRef *ret = av_buffer_alloc(size);
+    if (!ret)
+        return NULL;
+
+    memset(ret->data, 0, size);
+    return ret;
+}
+
+AVBufferRef *av_buffer_ref(AVBufferRef *buf)
+{
+    AVBufferRef *ret = av_mallocz(sizeof(*ret));
+
+    if (!ret)
+        return NULL;
+
+    *ret = *buf;
+
+    atomic_fetch_add_explicit(&buf->buffer->refcount, 1, memory_order_relaxed);
+
+    return ret;
+}
+
+static void buffer_replace(AVBufferRef **dst, AVBufferRef **src)
+{
+    AVBuffer *b;
+
+    b = (*dst)->buffer;
+
+    if (src) {
+        **dst = **src;
+        av_freep(src);
+    } else
+        av_freep(dst);
+
+    if (atomic_fetch_add_explicit(&b->refcount, -1, memory_order_acq_rel) == 1) {
+        b->free(b->opaque, b->data);
+        av_freep(&b);
+    }
+}
+
+void av_buffer_unref(AVBufferRef **buf)
+{
+    if (!buf || !*buf)
+        return;
+
+    buffer_replace(buf, NULL);
+}
+
+int av_buffer_is_writable(const AVBufferRef *buf)
+{
+    if (buf->buffer->flags & AV_BUFFER_FLAG_READONLY)
+        return 0;
+
+    return atomic_load(&buf->buffer->refcount) == 1;
+}
+
+void *av_buffer_get_opaque(const AVBufferRef *buf)
+{
+    return buf->buffer->opaque;
+}
+
+int av_buffer_get_ref_count(const AVBufferRef *buf)
+{
+    return atomic_load(&buf->buffer->refcount);
+}
+
+int av_buffer_make_writable(AVBufferRef **pbuf)
+{
+    AVBufferRef *newbuf, *buf = *pbuf;
+
+    if (av_buffer_is_writable(buf))
+        return 0;
+
+    newbuf = av_buffer_alloc(buf->size);
+    if (!newbuf)
+        return AVERROR(ENOMEM);
+
+    memcpy(newbuf->data, buf->data, buf->size);
+
+    buffer_replace(pbuf, &newbuf);
+
+    return 0;
+}
+
+int av_buffer_realloc(AVBufferRef **pbuf, int size)
+{
+    AVBufferRef *buf = *pbuf;
+    uint8_t *tmp;
+
+    if (!buf) {
+        /* allocate a new buffer with av_realloc(), so it will be reallocatable
+         * later */
+        uint8_t *data = av_realloc(NULL, size);
+        if (!data)
+            return AVERROR(ENOMEM);
+
+        buf = av_buffer_create(data, size, av_buffer_default_free, NULL, 0);
+        if (!buf) {
+            av_freep(&data);
+            return AVERROR(ENOMEM);
+        }
+
+        buf->buffer->flags |= BUFFER_FLAG_REALLOCATABLE;
+        *pbuf = buf;
+
+        return 0;
+    } else if (buf->size == size)
+        return 0;
+
+    if (!(buf->buffer->flags & BUFFER_FLAG_REALLOCATABLE) ||
+        !av_buffer_is_writable(buf) || buf->data != buf->buffer->data) {
+        /* cannot realloc, allocate a new reallocable buffer and copy data */
+        AVBufferRef *new = NULL;
+
+        av_buffer_realloc(&new, size);
+        if (!new)
+            return AVERROR(ENOMEM);
+
+        memcpy(new->data, buf->data, FFMIN(size, buf->size));
+
+        buffer_replace(pbuf, &new);
+        return 0;
+    }
+
+    tmp = av_realloc(buf->buffer->data, size);
+    if (!tmp)
+        return AVERROR(ENOMEM);
+
+    buf->buffer->data = buf->data = tmp;
+    buf->buffer->size = buf->size = size;
+    return 0;
+}
+
+AVBufferPool *av_buffer_pool_init2(int size, void *opaque,
+                                   AVBufferRef* (*alloc)(void *opaque, int size),
+                                   void (*pool_free)(void *opaque))
+{
+    AVBufferPool *pool = av_mallocz(sizeof(*pool));
+    if (!pool)
+        return NULL;
+
+    ff_mutex_init(&pool->mutex, NULL);
+
+    pool->size      = size;
+    pool->opaque    = opaque;
+    pool->alloc2    = alloc;
+    pool->pool_free = pool_free;
+
+    atomic_init(&pool->refcount, 1);
+
+    return pool;
+}
+
+AVBufferPool *av_buffer_pool_init(int size, AVBufferRef* (*alloc)(int size))
+{
+    AVBufferPool *pool = av_mallocz(sizeof(*pool));
+    if (!pool)
+        return NULL;
+
+    ff_mutex_init(&pool->mutex, NULL);
+
+    pool->size     = size;
+    pool->alloc    = alloc ? alloc : av_buffer_alloc;
+
+    atomic_init(&pool->refcount, 1);
+
+    return pool;
+}
+
+/*
+ * This function gets called when the pool has been uninited and
+ * all the buffers returned to it.
+ */
+static void buffer_pool_free(AVBufferPool *pool)
+{
+    while (pool->pool) {
+        BufferPoolEntry *buf = pool->pool;
+        pool->pool = buf->next;
+
+        buf->free(buf->opaque, buf->data);
+        av_freep(&buf);
+    }
+    ff_mutex_destroy(&pool->mutex);
+
+    if (pool->pool_free)
+        pool->pool_free(pool->opaque);
+
+    av_freep(&pool);
+}
+
+void av_buffer_pool_uninit(AVBufferPool **ppool)
+{
+    AVBufferPool *pool;
+
+    if (!ppool || !*ppool)
+        return;
+    pool   = *ppool;
+    *ppool = NULL;
+
+    if (atomic_fetch_add_explicit(&pool->refcount, -1, memory_order_acq_rel) == 1)
+        buffer_pool_free(pool);
+}
+
+static void pool_release_buffer(void *opaque, uint8_t *data)
+{
+    BufferPoolEntry *buf = opaque;
+    AVBufferPool *pool = buf->pool;
+
+    if(CONFIG_MEMORY_POISONING)
+        memset(buf->data, FF_MEMORY_POISON, pool->size);
+
+    ff_mutex_lock(&pool->mutex);
+    buf->next = pool->pool;
+    pool->pool = buf;
+    ff_mutex_unlock(&pool->mutex);
+
+    if (atomic_fetch_add_explicit(&pool->refcount, -1, memory_order_acq_rel) == 1)
+        buffer_pool_free(pool);
+}
+
+/* allocate a new buffer and override its free() callback so that
+ * it is returned to the pool on free */
+static AVBufferRef *pool_alloc_buffer(AVBufferPool *pool)
+{
+    BufferPoolEntry *buf;
+    AVBufferRef     *ret;
+
+    ret = pool->alloc2 ? pool->alloc2(pool->opaque, pool->size) :
+                         pool->alloc(pool->size);
+    if (!ret)
+        return NULL;
+
+    buf = av_mallocz(sizeof(*buf));
+    if (!buf) {
+        av_buffer_unref(&ret);
+        return NULL;
+    }
+
+    buf->data   = ret->buffer->data;
+    buf->opaque = ret->buffer->opaque;
+    buf->free   = ret->buffer->free;
+    buf->pool   = pool;
+
+    ret->buffer->opaque = buf;
+    ret->buffer->free   = pool_release_buffer;
+
+    return ret;
+}
+
+AVBufferRef *av_buffer_pool_get(AVBufferPool *pool)
+{
+    AVBufferRef *ret;
+    BufferPoolEntry *buf;
+
+    ff_mutex_lock(&pool->mutex);
+    buf = pool->pool;
+    if (buf) {
+        ret = av_buffer_create(buf->data, pool->size, pool_release_buffer,
+                               buf, 0);
+        if (ret) {
+            pool->pool = buf->next;
+            buf->next = NULL;
+        }
+    } else {
+        ret = pool_alloc_buffer(pool);
+    }
+    ff_mutex_unlock(&pool->mutex);
+
+    if (ret)
+        atomic_fetch_add_explicit(&pool->refcount, 1, memory_order_relaxed);
+
+    return ret;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/buffer.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/buffer.h
new file mode 100644
index 000000000..73b6bd0b1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/buffer.h
@@ -0,0 +1,291 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu_buffer
+ * refcounted data buffer API
+ */
+
+#ifndef AVUTIL_BUFFER_H
+#define AVUTIL_BUFFER_H
+
+#include <stdint.h>
+
+/**
+ * @defgroup lavu_buffer AVBuffer
+ * @ingroup lavu_data
+ *
+ * @{
+ * AVBuffer is an API for reference-counted data buffers.
+ *
+ * There are two core objects in this API -- AVBuffer and AVBufferRef. AVBuffer
+ * represents the data buffer itself; it is opaque and not meant to be accessed
+ * by the caller directly, but only through AVBufferRef. However, the caller may
+ * e.g. compare two AVBuffer pointers to check whether two different references
+ * are describing the same data buffer. AVBufferRef represents a single
+ * reference to an AVBuffer and it is the object that may be manipulated by the
+ * caller directly.
+ *
+ * There are two functions provided for creating a new AVBuffer with a single
+ * reference -- av_buffer_alloc() to just allocate a new buffer, and
+ * av_buffer_create() to wrap an existing array in an AVBuffer. From an existing
+ * reference, additional references may be created with av_buffer_ref().
+ * Use av_buffer_unref() to free a reference (this will automatically free the
+ * data once all the references are freed).
+ *
+ * The convention throughout this API and the rest of FFmpeg is such that the
+ * buffer is considered writable if there exists only one reference to it (and
+ * it has not been marked as read-only). The av_buffer_is_writable() function is
+ * provided to check whether this is true and av_buffer_make_writable() will
+ * automatically create a new writable buffer when necessary.
+ * Of course nothing prevents the calling code from violating this convention,
+ * however that is safe only when all the existing references are under its
+ * control.
+ *
+ * @note Referencing and unreferencing the buffers is thread-safe and thus
+ * may be done from multiple threads simultaneously without any need for
+ * additional locking.
+ *
+ * @note Two different references to the same buffer can point to different
+ * parts of the buffer (i.e. their AVBufferRef.data will not be equal).
+ */
+
+/**
+ * A reference counted buffer type. It is opaque and is meant to be used through
+ * references (AVBufferRef).
+ */
+typedef struct AVBuffer AVBuffer;
+
+/**
+ * A reference to a data buffer.
+ *
+ * The size of this struct is not a part of the public ABI and it is not meant
+ * to be allocated directly.
+ */
+typedef struct AVBufferRef {
+    AVBuffer *buffer;
+
+    /**
+     * The data buffer. It is considered writable if and only if
+     * this is the only reference to the buffer, in which case
+     * av_buffer_is_writable() returns 1.
+     */
+    uint8_t *data;
+    /**
+     * Size of data in bytes.
+     */
+    int      size;
+} AVBufferRef;
+
+/**
+ * Allocate an AVBuffer of the given size using av_malloc().
+ *
+ * @return an AVBufferRef of given size or NULL when out of memory
+ */
+AVBufferRef *av_buffer_alloc(int size);
+
+/**
+ * Same as av_buffer_alloc(), except the returned buffer will be initialized
+ * to zero.
+ */
+AVBufferRef *av_buffer_allocz(int size);
+
+/**
+ * Always treat the buffer as read-only, even when it has only one
+ * reference.
+ */
+#define AV_BUFFER_FLAG_READONLY (1 << 0)
+
+/**
+ * Create an AVBuffer from an existing array.
+ *
+ * If this function is successful, data is owned by the AVBuffer. The caller may
+ * only access data through the returned AVBufferRef and references derived from
+ * it.
+ * If this function fails, data is left untouched.
+ * @param data   data array
+ * @param size   size of data in bytes
+ * @param free   a callback for freeing this buffer's data
+ * @param opaque parameter to be got for processing or passed to free
+ * @param flags  a combination of AV_BUFFER_FLAG_*
+ *
+ * @return an AVBufferRef referring to data on success, NULL on failure.
+ */
+AVBufferRef *av_buffer_create(uint8_t *data, int size,
+                              void (*free)(void *opaque, uint8_t *data),
+                              void *opaque, int flags);
+
+/**
+ * Default free callback, which calls av_free() on the buffer data.
+ * This function is meant to be passed to av_buffer_create(), not called
+ * directly.
+ */
+void av_buffer_default_free(void *opaque, uint8_t *data);
+
+/**
+ * Create a new reference to an AVBuffer.
+ *
+ * @return a new AVBufferRef referring to the same AVBuffer as buf or NULL on
+ * failure.
+ */
+AVBufferRef *av_buffer_ref(AVBufferRef *buf);
+
+/**
+ * Free a given reference and automatically free the buffer if there are no more
+ * references to it.
+ *
+ * @param buf the reference to be freed. The pointer is set to NULL on return.
+ */
+void av_buffer_unref(AVBufferRef **buf);
+
+/**
+ * @return 1 if the caller may write to the data referred to by buf (which is
+ * true if and only if buf is the only reference to the underlying AVBuffer).
+ * Return 0 otherwise.
+ * A positive answer is valid until av_buffer_ref() is called on buf.
+ */
+int av_buffer_is_writable(const AVBufferRef *buf);
+
+/**
+ * @return the opaque parameter set by av_buffer_create.
+ */
+void *av_buffer_get_opaque(const AVBufferRef *buf);
+
+int av_buffer_get_ref_count(const AVBufferRef *buf);
+
+/**
+ * Create a writable reference from a given buffer reference, avoiding data copy
+ * if possible.
+ *
+ * @param buf buffer reference to make writable. On success, buf is either left
+ *            untouched, or it is unreferenced and a new writable AVBufferRef is
+ *            written in its place. On failure, buf is left untouched.
+ * @return 0 on success, a negative AVERROR on failure.
+ */
+int av_buffer_make_writable(AVBufferRef **buf);
+
+/**
+ * Reallocate a given buffer.
+ *
+ * @param buf  a buffer reference to reallocate. On success, buf will be
+ *             unreferenced and a new reference with the required size will be
+ *             written in its place. On failure buf will be left untouched. *buf
+ *             may be NULL, then a new buffer is allocated.
+ * @param size required new buffer size.
+ * @return 0 on success, a negative AVERROR on failure.
+ *
+ * @note the buffer is actually reallocated with av_realloc() only if it was
+ * initially allocated through av_buffer_realloc(NULL) and there is only one
+ * reference to it (i.e. the one passed to this function). In all other cases
+ * a new buffer is allocated and the data is copied.
+ */
+int av_buffer_realloc(AVBufferRef **buf, int size);
+
+/**
+ * @}
+ */
+
+/**
+ * @defgroup lavu_bufferpool AVBufferPool
+ * @ingroup lavu_data
+ *
+ * @{
+ * AVBufferPool is an API for a lock-free thread-safe pool of AVBuffers.
+ *
+ * Frequently allocating and freeing large buffers may be slow. AVBufferPool is
+ * meant to solve this in cases when the caller needs a set of buffers of the
+ * same size (the most obvious use case being buffers for raw video or audio
+ * frames).
+ *
+ * At the beginning, the user must call av_buffer_pool_init() to create the
+ * buffer pool. Then whenever a buffer is needed, call av_buffer_pool_get() to
+ * get a reference to a new buffer, similar to av_buffer_alloc(). This new
+ * reference works in all aspects the same way as the one created by
+ * av_buffer_alloc(). However, when the last reference to this buffer is
+ * unreferenced, it is returned to the pool instead of being freed and will be
+ * reused for subsequent av_buffer_pool_get() calls.
+ *
+ * When the caller is done with the pool and no longer needs to allocate any new
+ * buffers, av_buffer_pool_uninit() must be called to mark the pool as freeable.
+ * Once all the buffers are released, it will automatically be freed.
+ *
+ * Allocating and releasing buffers with this API is thread-safe as long as
+ * either the default alloc callback is used, or the user-supplied one is
+ * thread-safe.
+ */
+
+/**
+ * The buffer pool. This structure is opaque and not meant to be accessed
+ * directly. It is allocated with av_buffer_pool_init() and freed with
+ * av_buffer_pool_uninit().
+ */
+typedef struct AVBufferPool AVBufferPool;
+
+/**
+ * Allocate and initialize a buffer pool.
+ *
+ * @param size size of each buffer in this pool
+ * @param alloc a function that will be used to allocate new buffers when the
+ * pool is empty. May be NULL, then the default allocator will be used
+ * (av_buffer_alloc()).
+ * @return newly created buffer pool on success, NULL on error.
+ */
+AVBufferPool *av_buffer_pool_init(int size, AVBufferRef* (*alloc)(int size));
+
+/**
+ * Allocate and initialize a buffer pool with a more complex allocator.
+ *
+ * @param size size of each buffer in this pool
+ * @param opaque arbitrary user data used by the allocator
+ * @param alloc a function that will be used to allocate new buffers when the
+ *              pool is empty.
+ * @param pool_free a function that will be called immediately before the pool
+ *                  is freed. I.e. after av_buffer_pool_uninit() is called
+ *                  by the caller and all the frames are returned to the pool
+ *                  and freed. It is intended to uninitialize the user opaque
+ *                  data.
+ * @return newly created buffer pool on success, NULL on error.
+ */
+AVBufferPool *av_buffer_pool_init2(int size, void *opaque,
+                                   AVBufferRef* (*alloc)(void *opaque, int size),
+                                   void (*pool_free)(void *opaque));
+
+/**
+ * Mark the pool as being available for freeing. It will actually be freed only
+ * once all the allocated buffers associated with the pool are released. Thus it
+ * is safe to call this function while some of the allocated buffers are still
+ * in use.
+ *
+ * @param pool pointer to the pool to be freed. It will be set to NULL.
+ */
+void av_buffer_pool_uninit(AVBufferPool **pool);
+
+/**
+ * Allocate a new AVBuffer, reusing an old buffer from the pool when available.
+ * This function may be called simultaneously from multiple threads.
+ *
+ * @return a reference to the new buffer on success, NULL on error.
+ */
+AVBufferRef *av_buffer_pool_get(AVBufferPool *pool);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_BUFFER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/buffer_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/buffer_internal.h
new file mode 100644
index 000000000..54b67047e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/buffer_internal.h
@@ -0,0 +1,98 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_BUFFER_INTERNAL_H
+#define AVUTIL_BUFFER_INTERNAL_H
+
+#include <stdatomic.h>
+#include <stdint.h>
+
+#include "buffer.h"
+#include "thread.h"
+
+/**
+ * The buffer is always treated as read-only.
+ */
+#define BUFFER_FLAG_READONLY      (1 << 0)
+/**
+ * The buffer was av_realloc()ed, so it is reallocatable.
+ */
+#define BUFFER_FLAG_REALLOCATABLE (1 << 1)
+
+struct AVBuffer {
+    uint8_t *data; /**< data described by this buffer */
+    int      size; /**< size of data in bytes */
+
+    /**
+     *  number of existing AVBufferRef instances referring to this buffer
+     */
+    atomic_uint refcount;
+
+    /**
+     * a callback for freeing the data
+     */
+    void (*free)(void *opaque, uint8_t *data);
+
+    /**
+     * an opaque pointer, to be used by the freeing callback
+     */
+    void *opaque;
+
+    /**
+     * A combination of BUFFER_FLAG_*
+     */
+    int flags;
+};
+
+typedef struct BufferPoolEntry {
+    uint8_t *data;
+
+    /*
+     * Backups of the original opaque/free of the AVBuffer corresponding to
+     * data. They will be used to free the buffer when the pool is freed.
+     */
+    void *opaque;
+    void (*free)(void *opaque, uint8_t *data);
+
+    AVBufferPool *pool;
+    struct BufferPoolEntry *next;
+} BufferPoolEntry;
+
+struct AVBufferPool {
+    AVMutex mutex;
+    BufferPoolEntry *pool;
+
+    /*
+     * This is used to track when the pool is to be freed.
+     * The pointer to the pool itself held by the caller is considered to
+     * be one reference. Each buffer requested by the caller increases refcount
+     * by one, returning the buffer to the pool decreases it by one.
+     * refcount reaches zero when the buffer has been uninited AND all the
+     * buffers have been released, then it's safe to free the pool and all
+     * the buffers in it.
+     */
+    atomic_uint refcount;
+
+    int size;
+    void *opaque;
+    AVBufferRef* (*alloc)(int size);
+    AVBufferRef* (*alloc2)(void *opaque, int size);
+    void         (*pool_free)(void *opaque);
+};
+
+#endif /* AVUTIL_BUFFER_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/camellia.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/camellia.c
new file mode 100644
index 000000000..f33ee9bab
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/camellia.c
@@ -0,0 +1,412 @@
+/*
+ * An implementation of the CAMELLIA algorithm as mentioned in RFC3713
+ * Copyright (c) 2014 Supraja Meedinti
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "camellia.h"
+#include "common.h"
+#include "intreadwrite.h"
+#include "attributes.h"
+
+#define LR32(x,c) ((x) << (c) | (x) >> (32 - (c)))
+#define RR32(x,c) ((x) >> (c) | (x) << (32 - (c)))
+
+#define MASK8 0xff
+#define MASK32 0xffffffff
+#define MASK64 0xffffffffffffffff
+
+#define Sigma1  0xA09E667F3BCC908B
+#define Sigma2  0xB67AE8584CAA73B2
+#define Sigma3  0xC6EF372FE94F82BE
+#define Sigma4  0x54FF53A5F1D36F1C
+#define Sigma5  0x10E527FADE682D1D
+#define Sigma6  0xB05688C2B3E6C1FD
+
+static uint64_t SP[8][256];
+
+typedef struct AVCAMELLIA {
+    uint64_t Kw[4];
+    uint64_t Ke[6];
+    uint64_t K[24];
+    int key_bits;
+} AVCAMELLIA;
+
+static const uint8_t SBOX1[256] = {
+112, 130,  44, 236, 179,  39, 192, 229, 228, 133,  87,  53, 234,  12, 174,  65,
+ 35, 239, 107, 147,  69,  25, 165,  33, 237,  14,  79,  78,  29, 101, 146, 189,
+134, 184, 175, 143, 124, 235,  31, 206,  62,  48, 220,  95,  94, 197,  11,  26,
+166, 225,  57, 202, 213,  71,  93,  61, 217,   1,  90, 214,  81,  86, 108,  77,
+139,  13, 154, 102, 251, 204, 176,  45, 116,  18,  43,  32, 240, 177, 132, 153,
+223,  76, 203, 194,  52, 126, 118,   5, 109, 183, 169,  49, 209,  23,   4, 215,
+ 20,  88,  58,  97, 222,  27,  17,  28,  50,  15, 156,  22,  83,  24, 242,  34,
+254,  68, 207, 178, 195, 181, 122, 145,  36,   8, 232, 168,  96, 252, 105,  80,
+170, 208, 160, 125, 161, 137,  98, 151,  84,  91,  30, 149, 224, 255, 100, 210,
+ 16, 196,   0,  72, 163, 247, 117, 219, 138,   3, 230, 218,   9,  63, 221, 148,
+135,  92, 131,   2, 205,  74, 144,  51, 115, 103, 246, 243, 157, 127, 191, 226,
+ 82, 155, 216,  38, 200,  55, 198,  59, 129, 150, 111,  75,  19, 190,  99,  46,
+233, 121, 167, 140, 159, 110, 188, 142,  41, 245, 249, 182,  47, 253, 180,  89,
+120, 152,   6, 106, 231,  70, 113, 186, 212,  37, 171,  66, 136, 162, 141, 250,
+114,   7, 185,  85, 248, 238, 172,  10,  54,  73,  42, 104,  60,  56, 241, 164,
+ 64,  40, 211, 123, 187, 201,  67, 193,  21, 227, 173, 244, 119, 199, 128, 158
+};
+
+static const uint8_t SBOX2[256] = {
+224,   5,  88, 217, 103,  78, 129, 203, 201,  11, 174, 106, 213,  24,  93, 130,
+ 70, 223, 214,  39, 138,  50,  75,  66, 219,  28, 158, 156,  58, 202,  37, 123,
+ 13, 113,  95,  31, 248, 215,  62, 157, 124,  96, 185, 190, 188, 139,  22,  52,
+ 77, 195, 114, 149, 171, 142, 186, 122, 179,   2, 180, 173, 162, 172, 216, 154,
+ 23,  26,  53, 204, 247, 153,  97,  90, 232,  36,  86,  64, 225,  99,   9,  51,
+191, 152, 151, 133, 104, 252, 236,  10, 218, 111,  83,  98, 163,  46,   8, 175,
+ 40, 176, 116, 194, 189,  54,  34,  56, 100,  30,  57,  44, 166,  48, 229,  68,
+253, 136, 159, 101, 135, 107, 244,  35,  72,  16, 209,  81, 192, 249, 210, 160,
+ 85, 161,  65, 250,  67,  19, 196,  47, 168, 182,  60,  43, 193, 255, 200, 165,
+ 32, 137,   0, 144,  71, 239, 234, 183,  21,   6, 205, 181,  18, 126, 187,  41,
+ 15, 184,   7,   4, 155, 148,  33, 102, 230, 206, 237, 231,  59, 254, 127, 197,
+164,  55, 177,  76, 145, 110, 141, 118,   3,  45, 222, 150,  38, 125, 198,  92,
+211, 242,  79,  25,  63, 220, 121,  29,  82, 235, 243, 109,  94, 251, 105, 178,
+240,  49,  12, 212, 207, 140, 226, 117, 169,  74,  87, 132,  17,  69,  27, 245,
+228,  14, 115, 170, 241, 221,  89,  20, 108, 146,  84, 208, 120, 112, 227,  73,
+128,  80, 167, 246, 119, 147, 134, 131,  42, 199,  91, 233, 238, 143,   1,  61
+};
+
+static const uint8_t SBOX3[256] = {
+ 56,  65,  22, 118, 217, 147,  96, 242, 114, 194, 171, 154, 117,   6,  87, 160,
+145, 247, 181, 201, 162, 140, 210, 144, 246,   7, 167,  39, 142, 178,  73, 222,
+ 67,  92, 215, 199,  62, 245, 143, 103,  31,  24, 110, 175,  47, 226, 133,  13,
+ 83, 240, 156, 101, 234, 163, 174, 158, 236, 128,  45, 107, 168,  43,  54, 166,
+197, 134,  77,  51, 253, 102,  88, 150,  58,   9, 149,  16, 120, 216,  66, 204,
+239,  38, 229,  97,  26,  63,  59, 130, 182, 219, 212, 152, 232, 139,   2, 235,
+ 10,  44,  29, 176, 111, 141, 136,  14,  25, 135,  78,  11, 169,  12, 121,  17,
+127,  34, 231,  89, 225, 218,  61, 200,  18,   4, 116,  84,  48, 126, 180,  40,
+ 85, 104,  80, 190, 208, 196,  49, 203,  42, 173,  15, 202, 112, 255,  50, 105,
+  8,  98,   0,  36, 209, 251, 186, 237,  69, 129, 115, 109, 132, 159, 238,  74,
+195,  46, 193,   1, 230,  37,  72, 153, 185, 179, 123, 249, 206, 191, 223, 113,
+ 41, 205, 108,  19, 100, 155,  99, 157, 192,  75, 183, 165, 137,  95, 177,  23,
+244, 188, 211,  70, 207,  55,  94,  71, 148, 250, 252,  91, 151, 254,  90, 172,
+ 60,  76,   3,  53, 243,  35, 184,  93, 106, 146, 213,  33,  68,  81, 198, 125,
+ 57, 131, 220, 170, 124, 119,  86,   5,  27, 164,  21,  52,  30,  28, 248,  82,
+ 32,  20, 233, 189, 221, 228, 161, 224, 138, 241, 214, 122, 187, 227,  64,  79
+};
+
+static const uint8_t SBOX4[256] = {
+112,  44, 179, 192, 228,  87, 234, 174,  35, 107,  69, 165, 237,  79,  29, 146,
+134, 175, 124,  31,  62, 220,  94,  11, 166,  57, 213,  93, 217,  90,  81, 108,
+139, 154, 251, 176, 116,  43, 240, 132, 223, 203,  52, 118, 109, 169, 209,   4,
+ 20,  58, 222,  17,  50, 156,  83, 242, 254, 207, 195, 122,  36, 232,  96, 105,
+170, 160, 161,  98,  84,  30, 224, 100,  16,   0, 163, 117, 138, 230,   9, 221,
+135, 131, 205, 144, 115, 246, 157, 191,  82, 216, 200, 198, 129, 111,  19,  99,
+233, 167, 159, 188,  41, 249,  47, 180, 120,   6, 231, 113, 212, 171, 136, 141,
+114, 185, 248, 172,  54,  42,  60, 241,  64, 211, 187,  67,  21, 173, 119, 128,
+130, 236,  39, 229, 133,  53,  12,  65, 239, 147,  25,  33,  14,  78, 101, 189,
+184, 143, 235, 206,  48,  95, 197,  26, 225, 202,  71,  61,   1, 214,  86,  77,
+ 13, 102, 204,  45,  18,  32, 177, 153,  76, 194, 126,   5, 183,  49,  23, 215,
+ 88,  97,  27,  28,  15,  22,  24,  34,  68, 178, 181, 145,   8, 168, 252,  80,
+208, 125, 137, 151,  91, 149, 255, 210, 196,  72, 247, 219,   3, 218,  63, 148,
+ 92,   2,  74,  51, 103, 243, 127, 226, 155,  38,  55,  59, 150,  75, 190,  46,
+121, 140, 110, 142, 245, 182, 253,  89, 152, 106,  70, 186,  37,  66, 162, 250,
+  7,  85, 238,  10,  73, 104,  56, 164,  40, 123, 201, 193, 227, 244, 199, 158
+};
+
+const int av_camellia_size = sizeof(AVCAMELLIA);
+
+static void LR128(uint64_t d[2], const uint64_t K[2], int x)
+{
+    int i = 0;
+    if (64 <= x && x < 128) {
+        i = 1;
+        x -= 64;
+    }
+    if (x <= 0 || x >= 128) {
+        d[0] = K[i];
+        d[1] = K[!i];
+        return;
+    }
+    d[0] = (K[i] << x | K[!i] >> (64 - x));
+    d[1] = (K[!i] << x | K[i] >> (64 - x));
+}
+
+static uint64_t F(uint64_t F_IN, uint64_t KE)
+{
+    KE ^= F_IN;
+    F_IN=SP[0][KE >> 56]^SP[1][(KE >> 48) & MASK8]^SP[2][(KE >> 40) & MASK8]^SP[3][(KE >> 32) & MASK8]^SP[4][(KE >> 24) & MASK8]^SP[5][(KE >> 16) & MASK8]^SP[6][(KE >> 8) & MASK8]^SP[7][KE & MASK8];
+    return F_IN;
+}
+
+static uint64_t FL(uint64_t FL_IN, uint64_t KE)
+{
+    uint32_t x1, x2, k1, k2;
+    x1 = FL_IN >> 32;
+    x2 = FL_IN & MASK32;
+    k1 = KE >> 32;
+    k2 = KE & MASK32;
+    x2 = x2 ^ LR32((x1 & k1), 1);
+    x1 = x1 ^ (x2 | k2);
+    return ((uint64_t)x1 << 32) | (uint64_t)x2;
+}
+
+static uint64_t FLINV(uint64_t FLINV_IN, uint64_t KE)
+{
+    uint32_t x1, x2, k1, k2;
+    x1 = FLINV_IN >> 32;
+    x2 = FLINV_IN & MASK32;
+    k1 = KE >> 32;
+    k2 = KE & MASK32;
+    x1 = x1 ^ (x2 | k2);
+    x2 = x2 ^ LR32((x1 & k1), 1);
+    return ((uint64_t)x1 << 32) | (uint64_t)x2;
+}
+
+static const uint8_t shifts[2][12] = {
+    {0, 15, 15, 45, 45, 60, 94, 94, 111},
+    {0, 15, 15, 30, 45, 45, 60, 60,  77, 94, 94, 111}
+};
+
+static const uint8_t vars[2][12] = {
+    {2, 0, 2, 0, 2, 2, 0, 2, 0},
+    {3, 1, 2, 3, 0, 2, 1, 3, 0, 1, 2, 0}
+};
+
+static void generate_round_keys(AVCAMELLIA *cs, uint64_t Kl[2], uint64_t Kr[2], uint64_t Ka[2], uint64_t Kb[2])
+{
+    int i;
+    uint64_t *Kd[4], d[2];
+    Kd[0] = Kl;
+    Kd[1] = Kr;
+    Kd[2] = Ka;
+    Kd[3] = Kb;
+    cs->Kw[0] = Kl[0];
+    cs->Kw[1] = Kl[1];
+    if (cs->key_bits == 128) {
+        for (i = 0; i < 9; i++) {
+            LR128(d, Kd[vars[0][i]], shifts[0][i]);
+            cs->K[2*i] = d[0];
+            cs->K[2*i+1] = d[1];
+        }
+        LR128(d, Kd[0], 60);
+        cs->K[9] = d[1];
+        LR128(d, Kd[2], 30);
+        cs->Ke[0] = d[0];
+        cs->Ke[1] = d[1];
+        LR128(d, Kd[0], 77);
+        cs->Ke[2] = d[0];
+        cs->Ke[3] = d[1];
+        LR128(d, Kd[2], 111);
+        cs->Kw[2] = d[0];
+        cs->Kw[3] = d[1];
+    } else {
+        for (i = 0; i < 12; i++) {
+            LR128(d, Kd[vars[1][i]], shifts[1][i]);
+            cs->K[2*i] = d[0];
+            cs->K[2*i+1] = d[1];
+        }
+        LR128(d, Kd[1], 30);
+        cs->Ke[0] = d[0];
+        cs->Ke[1] = d[1];
+        LR128(d, Kd[0], 60);
+        cs->Ke[2] = d[0];
+        cs->Ke[3] = d[1];
+        LR128(d, Kd[2], 77);
+        cs->Ke[4] = d[0];
+        cs->Ke[5] = d[1];
+        LR128(d, Kd[3], 111);
+        cs->Kw[2] = d[0];
+        cs->Kw[3] = d[1];
+    }
+}
+
+static void camellia_encrypt(AVCAMELLIA *cs, uint8_t *dst, const uint8_t *src)
+{
+    uint64_t D1, D2;
+    D1 = AV_RB64(src);
+    D2 = AV_RB64(src + 8);
+    D1 ^= cs->Kw[0];
+    D2 ^= cs->Kw[1];
+    D2 ^= F(D1, cs->K[0]);
+    D1 ^= F(D2, cs->K[1]);
+    D2 ^= F(D1, cs->K[2]);
+    D1 ^= F(D2, cs->K[3]);
+    D2 ^= F(D1, cs->K[4]);
+    D1 ^= F(D2, cs->K[5]);
+    D1 = FL(D1, cs->Ke[0]);
+    D2 = FLINV(D2, cs->Ke[1]);
+    D2 ^= F(D1, cs->K[6]);
+    D1 ^= F(D2, cs->K[7]);
+    D2 ^= F(D1, cs->K[8]);
+    D1 ^= F(D2, cs->K[9]);
+    D2 ^= F(D1, cs->K[10]);
+    D1 ^= F(D2, cs->K[11]);
+    D1 = FL(D1, cs->Ke[2]);
+    D2 = FLINV(D2, cs->Ke[3]);
+    D2 ^= F(D1, cs->K[12]);
+    D1 ^= F(D2, cs->K[13]);
+    D2 ^= F(D1, cs->K[14]);
+    D1 ^= F(D2, cs->K[15]);
+    D2 ^= F(D1, cs->K[16]);
+    D1 ^= F(D2, cs->K[17]);
+    if (cs->key_bits != 128) {
+        D1 = FL(D1, cs->Ke[4]);
+        D2 = FLINV(D2, cs->Ke[5]);
+        D2 ^= F(D1, cs->K[18]);
+        D1 ^= F(D2, cs->K[19]);
+        D2 ^= F(D1, cs->K[20]);
+        D1 ^= F(D2, cs->K[21]);
+        D2 ^= F(D1, cs->K[22]);
+        D1 ^= F(D2, cs->K[23]);
+    }
+    D2 ^= cs->Kw[2];
+    D1 ^= cs->Kw[3];
+    AV_WB64(dst, D2);
+    AV_WB64(dst + 8, D1);
+}
+
+static void camellia_decrypt(AVCAMELLIA *cs, uint8_t *dst, const uint8_t *src, uint8_t *iv)
+{
+    uint64_t D1, D2;
+    D1 = AV_RB64(src);
+    D2 = AV_RB64(src + 8);
+    D1 ^= cs->Kw[2];
+    D2 ^= cs->Kw[3];
+    if (cs->key_bits != 128) {
+        D2 ^= F(D1, cs->K[23]);
+        D1 ^= F(D2, cs->K[22]);
+        D2 ^= F(D1, cs->K[21]);
+        D1 ^= F(D2, cs->K[20]);
+        D2 ^= F(D1, cs->K[19]);
+        D1 ^= F(D2, cs->K[18]);
+        D1 = FL(D1, cs->Ke[5]);
+        D2 = FLINV(D2, cs->Ke[4]);
+    }
+    D2 ^= F(D1, cs->K[17]);
+    D1 ^= F(D2, cs->K[16]);
+    D2 ^= F(D1, cs->K[15]);
+    D1 ^= F(D2, cs->K[14]);
+    D2 ^= F(D1, cs->K[13]);
+    D1 ^= F(D2, cs->K[12]);
+    D1 = FL(D1, cs->Ke[3]);
+    D2 = FLINV(D2, cs->Ke[2]);
+    D2 ^= F(D1, cs->K[11]);
+    D1 ^= F(D2, cs->K[10]);
+    D2 ^= F(D1, cs->K[9]);
+    D1 ^= F(D2, cs->K[8]);
+    D2 ^= F(D1, cs->K[7]);
+    D1 ^= F(D2, cs->K[6]);
+    D1 = FL(D1, cs->Ke[1]);
+    D2 = FLINV(D2, cs->Ke[0]);
+    D2 ^= F(D1, cs->K[5]);
+    D1 ^= F(D2, cs->K[4]);
+    D2 ^= F(D1, cs->K[3]);
+    D1 ^= F(D2, cs->K[2]);
+    D2 ^= F(D1, cs->K[1]);
+    D1 ^= F(D2, cs->K[0]);
+    D2 ^= cs->Kw[0];
+    D1 ^= cs->Kw[1];
+    if (iv) {
+        D2 ^= AV_RB64(iv);
+        D1 ^= AV_RB64(iv + 8);
+        memcpy(iv, src, 16);
+    }
+    AV_WB64(dst, D2);
+    AV_WB64(dst + 8, D1);
+}
+
+static void computeSP(void)
+{
+    uint64_t z;
+    int i;
+    for (i = 0; i < 256; i++) {
+        z = SBOX1[i];
+        SP[0][i] = (z << 56) ^ (z << 48) ^ (z << 40) ^ (z << 24) ^ z;
+        SP[7][i] = (z << 56) ^ (z << 48) ^ (z << 40) ^ (z << 24) ^ (z << 16) ^ (z << 8);
+        z = SBOX2[i];
+        SP[1][i] = (z << 48) ^ (z << 40) ^ (z << 32) ^ (z << 24) ^ (z << 16);
+        SP[4][i] = (z << 48) ^ (z << 40) ^ (z << 32) ^ (z << 16) ^ (z << 8) ^ z;
+        z = SBOX3[i];
+        SP[2][i] = (z << 56) ^ (z << 40) ^ (z << 32) ^ (z << 16) ^ (z << 8);
+        SP[5][i] = (z << 56) ^ (z << 40) ^ (z << 32) ^ (z << 24) ^ (z << 8) ^ z;
+        z = SBOX4[i];
+        SP[3][i] = (z << 56) ^ (z << 48) ^ (z << 32) ^ (z << 8) ^ z;
+        SP[6][i] = (z << 56) ^ (z << 48) ^ (z << 32) ^ (z << 24) ^ (z << 16) ^ z;
+    }
+}
+
+struct AVCAMELLIA *av_camellia_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVCAMELLIA));
+}
+
+av_cold int av_camellia_init(AVCAMELLIA *cs, const uint8_t *key, int key_bits)
+{
+    uint64_t Kl[2], Kr[2], Ka[2], Kb[2];
+    uint64_t D1, D2;
+    if (key_bits != 128 && key_bits != 192 && key_bits != 256)
+        return AVERROR(EINVAL);
+    memset(Kb, 0, sizeof(Kb));
+    memset(Kr, 0, sizeof(Kr));
+    cs->key_bits = key_bits;
+    Kl[0] = AV_RB64(key);
+    Kl[1] = AV_RB64(key + 8);
+    if (key_bits == 192) {
+        Kr[0] = AV_RB64(key + 16);
+        Kr[1] = ~Kr[0];
+    } else if (key_bits == 256) {
+        Kr[0] = AV_RB64(key + 16);
+        Kr[1] = AV_RB64(key + 24);
+    }
+    computeSP();
+    D1 = Kl[0] ^ Kr[0];
+    D2 = Kl[1] ^ Kr[1];
+    D2 ^= F(D1, Sigma1);
+    D1 ^= F(D2, Sigma2);
+    D1 ^= Kl[0];
+    D2 ^= Kl[1];
+    D2 ^= F(D1, Sigma3);
+    D1 ^= F(D2, Sigma4);
+    Ka[0] = D1;
+    Ka[1] = D2;
+    if (key_bits != 128) {
+        D1 = Ka[0] ^ Kr[0];
+        D2 = Ka[1] ^ Kr[1];
+        D2 ^= F(D1, Sigma5);
+        D1 ^= F(D2, Sigma6);
+        Kb[0] = D1;
+        Kb[1] = D2;
+    }
+    generate_round_keys(cs, Kl, Kr, Ka, Kb);
+    return 0;
+}
+
+void av_camellia_crypt(AVCAMELLIA *cs, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt)
+{
+    int i;
+    while (count--) {
+        if (decrypt) {
+            camellia_decrypt(cs, dst, src, iv);
+        } else {
+            if (iv) {
+                for (i = 0; i < 16; i++)
+                    dst[i] = src[i] ^ iv[i];
+                camellia_encrypt(cs, dst, dst);
+                memcpy(iv, dst, 16);
+            } else {
+                camellia_encrypt(cs, dst, src);
+            }
+        }
+        src = src + 16;
+        dst = dst + 16;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/camellia.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/camellia.h
new file mode 100644
index 000000000..e674c9b9a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/camellia.h
@@ -0,0 +1,70 @@
+/*
+ * An implementation of the CAMELLIA algorithm as mentioned in RFC3713
+ * Copyright (c) 2014 Supraja Meedinti
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_CAMELLIA_H
+#define AVUTIL_CAMELLIA_H
+
+#include <stdint.h>
+
+
+/**
+  * @file
+  * @brief Public header for libavutil CAMELLIA algorithm
+  * @defgroup lavu_camellia CAMELLIA
+  * @ingroup lavu_crypto
+  * @{
+  */
+
+extern const int av_camellia_size;
+
+struct AVCAMELLIA;
+
+/**
+  * Allocate an AVCAMELLIA context
+  * To free the struct: av_free(ptr)
+  */
+struct AVCAMELLIA *av_camellia_alloc(void);
+
+/**
+  * Initialize an AVCAMELLIA context.
+  *
+  * @param ctx an AVCAMELLIA context
+  * @param key a key of 16, 24, 32 bytes used for encryption/decryption
+  * @param key_bits number of keybits: possible are 128, 192, 256
+ */
+int av_camellia_init(struct AVCAMELLIA *ctx, const uint8_t *key, int key_bits);
+
+/**
+  * Encrypt or decrypt a buffer using a previously initialized context
+  *
+  * @param ctx an AVCAMELLIA context
+  * @param dst destination array, can be equal to src
+  * @param src source array, can be equal to dst
+  * @param count number of 16 byte blocks
+  * @paran iv initialization vector for CBC mode, NULL for ECB mode
+  * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_camellia_crypt(struct AVCAMELLIA *ctx, uint8_t *dst, const uint8_t *src, int count, uint8_t* iv, int decrypt);
+
+/**
+ * @}
+ */
+#endif /* AVUTIL_CAMELLIA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cast5.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cast5.c
new file mode 100644
index 000000000..445eb55c1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cast5.c
@@ -0,0 +1,507 @@
+/*
+ * An implementation of the CAST128 algorithm as mentioned in RFC2144
+ * Copyright (c) 2014 Supraja Meedinti
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "cast5.h"
+#include "common.h"
+#include "intreadwrite.h"
+#include "attributes.h"
+
+#define IA(x) ((x) >> 24)
+#define IB(x) (((x) >> 16) & 0xff)
+#define IC(x) (((x) >> 8) & 0xff)
+#define ID(x) ((x) & 0xff)
+
+#define LR(x, c) (((x) << (c)) | ((x) >> (32 - (c))))
+
+#define F3(l, r, i)                                                                                  \
+    do {                                                                                             \
+        I = LR(cs->Km[i] - r, cs->Kr[i]);                                                            \
+        f = ((S1[IA(I)] + S2[IB(I)]) ^ S3[IC(I)]) - S4[ID(I)];                                       \
+        l = f ^ l;                                                                                   \
+    } while (0)
+
+#define F2(l, r, i)                                                                                  \
+    do {                                                                                             \
+        I = LR(cs->Km[i] ^ r, cs->Kr[i]);                                                            \
+        f = ((S1[IA(I)] - S2[IB(I)]) + S3[IC(I)]) ^ S4[ID(I)];                                       \
+        l = f ^ l;                                                                                   \
+    } while (0)
+
+#define F1(l, r, i)                                                                                  \
+    do {                                                                                             \
+        I = LR(cs->Km[i] + r, cs->Kr[i]);                                                            \
+        f = ((S1[IA(I)] ^ S2[IB(I)]) - S3[IC(I)]) + S4[ID(I)];                                       \
+        l = f ^ l;                                                                                   \
+    } while (0)
+
+#define COMPUTE_Z                                                                                    \
+    do {                                                                                             \
+        z[0] = x[0] ^ S5[IB(x[3])] ^ S6[ID(x[3])] ^ S7[IA(x[3])] ^ S8[IC(x[3])] ^ S7[IA(x[2])];      \
+        z[1] = x[2] ^ S5[IA(z[0])] ^ S6[IC(z[0])] ^ S7[IB(z[0])] ^ S8[ID(z[0])] ^ S8[IC(x[2])];      \
+        z[2] = x[3] ^ S5[ID(z[1])] ^ S6[IC(z[1])] ^ S7[IB(z[1])] ^ S8[IA(z[1])] ^ S5[IB(x[2])];      \
+        z[3] = x[1] ^ S5[IC(z[2])] ^ S6[IB(z[2])] ^ S7[ID(z[2])] ^ S8[IA(z[2])] ^ S6[ID(x[2])];      \
+    } while (0)
+
+#define COMPUTE_X                                                                                    \
+    do {                                                                                             \
+        x[0] = z[2] ^ S5[IB(z[1])] ^ S6[ID(z[1])] ^ S7[IA(z[1])] ^ S8[IC(z[1])] ^ S7[IA(z[0])];      \
+        x[1] = z[0] ^ S5[IA(x[0])] ^ S6[IC(x[0])] ^ S7[IB(x[0])] ^ S8[ID(x[0])] ^ S8[IC(z[0])];      \
+        x[2] = z[1] ^ S5[ID(x[1])] ^ S6[IC(x[1])] ^ S7[IB(x[1])] ^ S8[IA(x[1])] ^ S5[IB(z[0])];      \
+        x[3] = z[3] ^ S5[IC(x[2])] ^ S6[IB(x[2])] ^ S7[ID(x[2])] ^ S8[IA(x[2])] ^ S6[ID(z[0])];      \
+    } while (0)
+
+
+typedef struct AVCAST5 {
+    uint32_t Km[17];
+    uint32_t Kr[17];
+    int rounds;
+} AVCAST5;
+
+const int av_cast5_size = sizeof(AVCAST5);
+
+static const uint32_t S1[256] = {
+    0x30fb40d4, 0x9fa0ff0b, 0x6beccd2f, 0x3f258c7a, 0x1e213f2f, 0x9c004dd3, 0x6003e540, 0xcf9fc949,
+    0xbfd4af27, 0x88bbbdb5, 0xe2034090, 0x98d09675, 0x6e63a0e0, 0x15c361d2, 0xc2e7661d, 0x22d4ff8e,
+    0x28683b6f, 0xc07fd059, 0xff2379c8, 0x775f50e2, 0x43c340d3, 0xdf2f8656, 0x887ca41a, 0xa2d2bd2d,
+    0xa1c9e0d6, 0x346c4819, 0x61b76d87, 0x22540f2f, 0x2abe32e1, 0xaa54166b, 0x22568e3a, 0xa2d341d0,
+    0x66db40c8, 0xa784392f, 0x004dff2f, 0x2db9d2de, 0x97943fac, 0x4a97c1d8, 0x527644b7, 0xb5f437a7,
+    0xb82cbaef, 0xd751d159, 0x6ff7f0ed, 0x5a097a1f, 0x827b68d0, 0x90ecf52e, 0x22b0c054, 0xbc8e5935,
+    0x4b6d2f7f, 0x50bb64a2, 0xd2664910, 0xbee5812d, 0xb7332290, 0xe93b159f, 0xb48ee411, 0x4bff345d,
+    0xfd45c240, 0xad31973f, 0xc4f6d02e, 0x55fc8165, 0xd5b1caad, 0xa1ac2dae, 0xa2d4b76d, 0xc19b0c50,
+    0x882240f2, 0x0c6e4f38, 0xa4e4bfd7, 0x4f5ba272, 0x564c1d2f, 0xc59c5319, 0xb949e354, 0xb04669fe,
+    0xb1b6ab8a, 0xc71358dd, 0x6385c545, 0x110f935d, 0x57538ad5, 0x6a390493, 0xe63d37e0, 0x2a54f6b3,
+    0x3a787d5f, 0x6276a0b5, 0x19a6fcdf, 0x7a42206a, 0x29f9d4d5, 0xf61b1891, 0xbb72275e, 0xaa508167,
+    0x38901091, 0xc6b505eb, 0x84c7cb8c, 0x2ad75a0f, 0x874a1427, 0xa2d1936b, 0x2ad286af, 0xaa56d291,
+    0xd7894360, 0x425c750d, 0x93b39e26, 0x187184c9, 0x6c00b32d, 0x73e2bb14, 0xa0bebc3c, 0x54623779,
+    0x64459eab, 0x3f328b82, 0x7718cf82, 0x59a2cea6, 0x04ee002e, 0x89fe78e6, 0x3fab0950, 0x325ff6c2,
+    0x81383f05, 0x6963c5c8, 0x76cb5ad6, 0xd49974c9, 0xca180dcf, 0x380782d5, 0xc7fa5cf6, 0x8ac31511,
+    0x35e79e13, 0x47da91d0, 0xf40f9086, 0xa7e2419e, 0x31366241, 0x051ef495, 0xaa573b04, 0x4a805d8d,
+    0x548300d0, 0x00322a3c, 0xbf64cddf, 0xba57a68e, 0x75c6372b, 0x50afd341, 0xa7c13275, 0x915a0bf5,
+    0x6b54bfab, 0x2b0b1426, 0xab4cc9d7, 0x449ccd82, 0xf7fbf265, 0xab85c5f3, 0x1b55db94, 0xaad4e324,
+    0xcfa4bd3f, 0x2deaa3e2, 0x9e204d02, 0xc8bd25ac, 0xeadf55b3, 0xd5bd9e98, 0xe31231b2, 0x2ad5ad6c,
+    0x954329de, 0xadbe4528, 0xd8710f69, 0xaa51c90f, 0xaa786bf6, 0x22513f1e, 0xaa51a79b, 0x2ad344cc,
+    0x7b5a41f0, 0xd37cfbad, 0x1b069505, 0x41ece491, 0xb4c332e6, 0x032268d4, 0xc9600acc, 0xce387e6d,
+    0xbf6bb16c, 0x6a70fb78, 0x0d03d9c9, 0xd4df39de, 0xe01063da, 0x4736f464, 0x5ad328d8, 0xb347cc96,
+    0x75bb0fc3, 0x98511bfb, 0x4ffbcc35, 0xb58bcf6a, 0xe11f0abc, 0xbfc5fe4a, 0xa70aec10, 0xac39570a,
+    0x3f04442f, 0x6188b153, 0xe0397a2e, 0x5727cb79, 0x9ceb418f, 0x1cacd68d, 0x2ad37c96, 0x0175cb9d,
+    0xc69dff09, 0xc75b65f0, 0xd9db40d8, 0xec0e7779, 0x4744ead4, 0xb11c3274, 0xdd24cb9e, 0x7e1c54bd,
+    0xf01144f9, 0xd2240eb1, 0x9675b3fd, 0xa3ac3755, 0xd47c27af, 0x51c85f4d, 0x56907596, 0xa5bb15e6,
+    0x580304f0, 0xca042cf1, 0x011a37ea, 0x8dbfaadb, 0x35ba3e4a, 0x3526ffa0, 0xc37b4d09, 0xbc306ed9,
+    0x98a52666, 0x5648f725, 0xff5e569d, 0x0ced63d0, 0x7c63b2cf, 0x700b45e1, 0xd5ea50f1, 0x85a92872,
+    0xaf1fbda7, 0xd4234870, 0xa7870bf3, 0x2d3b4d79, 0x42e04198, 0x0cd0ede7, 0x26470db8, 0xf881814c,
+    0x474d6ad7, 0x7c0c5e5c, 0xd1231959, 0x381b7298, 0xf5d2f4db, 0xab838653, 0x6e2f1e23, 0x83719c9e,
+    0xbd91e046, 0x9a56456e, 0xdc39200c, 0x20c8c571, 0x962bda1c, 0xe1e696ff, 0xb141ab08, 0x7cca89b9,
+    0x1a69e783, 0x02cc4843, 0xa2f7c579, 0x429ef47d, 0x427b169c, 0x5ac9f049, 0xdd8f0f00, 0x5c8165bf
+};
+
+static const uint32_t S2[256] = {
+    0x1f201094, 0xef0ba75b, 0x69e3cf7e, 0x393f4380, 0xfe61cf7a, 0xeec5207a, 0x55889c94, 0x72fc0651,
+    0xada7ef79, 0x4e1d7235, 0xd55a63ce, 0xde0436ba, 0x99c430ef, 0x5f0c0794, 0x18dcdb7d, 0xa1d6eff3,
+    0xa0b52f7b, 0x59e83605, 0xee15b094, 0xe9ffd909, 0xdc440086, 0xef944459, 0xba83ccb3, 0xe0c3cdfb,
+    0xd1da4181, 0x3b092ab1, 0xf997f1c1, 0xa5e6cf7b, 0x01420ddb, 0xe4e7ef5b, 0x25a1ff41, 0xe180f806,
+    0x1fc41080, 0x179bee7a, 0xd37ac6a9, 0xfe5830a4, 0x98de8b7f, 0x77e83f4e, 0x79929269, 0x24fa9f7b,
+    0xe113c85b, 0xacc40083, 0xd7503525, 0xf7ea615f, 0x62143154, 0x0d554b63, 0x5d681121, 0xc866c359,
+    0x3d63cf73, 0xcee234c0, 0xd4d87e87, 0x5c672b21, 0x071f6181, 0x39f7627f, 0x361e3084, 0xe4eb573b,
+    0x602f64a4, 0xd63acd9c, 0x1bbc4635, 0x9e81032d, 0x2701f50c, 0x99847ab4, 0xa0e3df79, 0xba6cf38c,
+    0x10843094, 0x2537a95e, 0xf46f6ffe, 0xa1ff3b1f, 0x208cfb6a, 0x8f458c74, 0xd9e0a227, 0x4ec73a34,
+    0xfc884f69, 0x3e4de8df, 0xef0e0088, 0x3559648d, 0x8a45388c, 0x1d804366, 0x721d9bfd, 0xa58684bb,
+    0xe8256333, 0x844e8212, 0x128d8098, 0xfed33fb4, 0xce280ae1, 0x27e19ba5, 0xd5a6c252, 0xe49754bd,
+    0xc5d655dd, 0xeb667064, 0x77840b4d, 0xa1b6a801, 0x84db26a9, 0xe0b56714, 0x21f043b7, 0xe5d05860,
+    0x54f03084, 0x066ff472, 0xa31aa153, 0xdadc4755, 0xb5625dbf, 0x68561be6, 0x83ca6b94, 0x2d6ed23b,
+    0xeccf01db, 0xa6d3d0ba, 0xb6803d5c, 0xaf77a709, 0x33b4a34c, 0x397bc8d6, 0x5ee22b95, 0x5f0e5304,
+    0x81ed6f61, 0x20e74364, 0xb45e1378, 0xde18639b, 0x881ca122, 0xb96726d1, 0x8049a7e8, 0x22b7da7b,
+    0x5e552d25, 0x5272d237, 0x79d2951c, 0xc60d894c, 0x488cb402, 0x1ba4fe5b, 0xa4b09f6b, 0x1ca815cf,
+    0xa20c3005, 0x8871df63, 0xb9de2fcb, 0x0cc6c9e9, 0x0beeff53, 0xe3214517, 0xb4542835, 0x9f63293c,
+    0xee41e729, 0x6e1d2d7c, 0x50045286, 0x1e6685f3, 0xf33401c6, 0x30a22c95, 0x31a70850, 0x60930f13,
+    0x73f98417, 0xa1269859, 0xec645c44, 0x52c877a9, 0xcdff33a6, 0xa02b1741, 0x7cbad9a2, 0x2180036f,
+    0x50d99c08, 0xcb3f4861, 0xc26bd765, 0x64a3f6ab, 0x80342676, 0x25a75e7b, 0xe4e6d1fc, 0x20c710e6,
+    0xcdf0b680, 0x17844d3b, 0x31eef84d, 0x7e0824e4, 0x2ccb49eb, 0x846a3bae, 0x8ff77888, 0xee5d60f6,
+    0x7af75673, 0x2fdd5cdb, 0xa11631c1, 0x30f66f43, 0xb3faec54, 0x157fd7fa, 0xef8579cc, 0xd152de58,
+    0xdb2ffd5e, 0x8f32ce19, 0x306af97a, 0x02f03ef8, 0x99319ad5, 0xc242fa0f, 0xa7e3ebb0, 0xc68e4906,
+    0xb8da230c, 0x80823028, 0xdcdef3c8, 0xd35fb171, 0x088a1bc8, 0xbec0c560, 0x61a3c9e8, 0xbca8f54d,
+    0xc72feffa, 0x22822e99, 0x82c570b4, 0xd8d94e89, 0x8b1c34bc, 0x301e16e6, 0x273be979, 0xb0ffeaa6,
+    0x61d9b8c6, 0x00b24869, 0xb7ffce3f, 0x08dc283b, 0x43daf65a, 0xf7e19798, 0x7619b72f, 0x8f1c9ba4,
+    0xdc8637a0, 0x16a7d3b1, 0x9fc393b7, 0xa7136eeb, 0xc6bcc63e, 0x1a513742, 0xef6828bc, 0x520365d6,
+    0x2d6a77ab, 0x3527ed4b, 0x821fd216, 0x095c6e2e, 0xdb92f2fb, 0x5eea29cb, 0x145892f5, 0x91584f7f,
+    0x5483697b, 0x2667a8cc, 0x85196048, 0x8c4bacea, 0x833860d4, 0x0d23e0f9, 0x6c387e8a, 0x0ae6d249,
+    0xb284600c, 0xd835731d, 0xdcb1c647, 0xac4c56ea, 0x3ebd81b3, 0x230eabb0, 0x6438bc87, 0xf0b5b1fa,
+    0x8f5ea2b3, 0xfc184642, 0x0a036b7a, 0x4fb089bd, 0x649da589, 0xa345415e, 0x5c038323, 0x3e5d3bb9,
+    0x43d79572, 0x7e6dd07c, 0x06dfdf1e, 0x6c6cc4ef, 0x7160a539, 0x73bfbe70, 0x83877605, 0x4523ecf1
+};
+
+static const uint32_t S3[256] = {
+    0x8defc240, 0x25fa5d9f, 0xeb903dbf, 0xe810c907, 0x47607fff, 0x369fe44b, 0x8c1fc644, 0xaececa90,
+    0xbeb1f9bf, 0xeefbcaea, 0xe8cf1950, 0x51df07ae, 0x920e8806, 0xf0ad0548, 0xe13c8d83, 0x927010d5,
+    0x11107d9f, 0x07647db9, 0xb2e3e4d4, 0x3d4f285e, 0xb9afa820, 0xfade82e0, 0xa067268b, 0x8272792e,
+    0x553fb2c0, 0x489ae22b, 0xd4ef9794, 0x125e3fbc, 0x21fffcee, 0x825b1bfd, 0x9255c5ed, 0x1257a240,
+    0x4e1a8302, 0xbae07fff, 0x528246e7, 0x8e57140e, 0x3373f7bf, 0x8c9f8188, 0xa6fc4ee8, 0xc982b5a5,
+    0xa8c01db7, 0x579fc264, 0x67094f31, 0xf2bd3f5f, 0x40fff7c1, 0x1fb78dfc, 0x8e6bd2c1, 0x437be59b,
+    0x99b03dbf, 0xb5dbc64b, 0x638dc0e6, 0x55819d99, 0xa197c81c, 0x4a012d6e, 0xc5884a28, 0xccc36f71,
+    0xb843c213, 0x6c0743f1, 0x8309893c, 0x0feddd5f, 0x2f7fe850, 0xd7c07f7e, 0x02507fbf, 0x5afb9a04,
+    0xa747d2d0, 0x1651192e, 0xaf70bf3e, 0x58c31380, 0x5f98302e, 0x727cc3c4, 0x0a0fb402, 0x0f7fef82,
+    0x8c96fdad, 0x5d2c2aae, 0x8ee99a49, 0x50da88b8, 0x8427f4a0, 0x1eac5790, 0x796fb449, 0x8252dc15,
+    0xefbd7d9b, 0xa672597d, 0xada840d8, 0x45f54504, 0xfa5d7403, 0xe83ec305, 0x4f91751a, 0x925669c2,
+    0x23efe941, 0xa903f12e, 0x60270df2, 0x0276e4b6, 0x94fd6574, 0x927985b2, 0x8276dbcb, 0x02778176,
+    0xf8af918d, 0x4e48f79e, 0x8f616ddf, 0xe29d840e, 0x842f7d83, 0x340ce5c8, 0x96bbb682, 0x93b4b148,
+    0xef303cab, 0x984faf28, 0x779faf9b, 0x92dc560d, 0x224d1e20, 0x8437aa88, 0x7d29dc96, 0x2756d3dc,
+    0x8b907cee, 0xb51fd240, 0xe7c07ce3, 0xe566b4a1, 0xc3e9615e, 0x3cf8209d, 0x6094d1e3, 0xcd9ca341,
+    0x5c76460e, 0x00ea983b, 0xd4d67881, 0xfd47572c, 0xf76cedd9, 0xbda8229c, 0x127dadaa, 0x438a074e,
+    0x1f97c090, 0x081bdb8a, 0x93a07ebe, 0xb938ca15, 0x97b03cff, 0x3dc2c0f8, 0x8d1ab2ec, 0x64380e51,
+    0x68cc7bfb, 0xd90f2788, 0x12490181, 0x5de5ffd4, 0xdd7ef86a, 0x76a2e214, 0xb9a40368, 0x925d958f,
+    0x4b39fffa, 0xba39aee9, 0xa4ffd30b, 0xfaf7933b, 0x6d498623, 0x193cbcfa, 0x27627545, 0x825cf47a,
+    0x61bd8ba0, 0xd11e42d1, 0xcead04f4, 0x127ea392, 0x10428db7, 0x8272a972, 0x9270c4a8, 0x127de50b,
+    0x285ba1c8, 0x3c62f44f, 0x35c0eaa5, 0xe805d231, 0x428929fb, 0xb4fcdf82, 0x4fb66a53, 0x0e7dc15b,
+    0x1f081fab, 0x108618ae, 0xfcfd086d, 0xf9ff2889, 0x694bcc11, 0x236a5cae, 0x12deca4d, 0x2c3f8cc5,
+    0xd2d02dfe, 0xf8ef5896, 0xe4cf52da, 0x95155b67, 0x494a488c, 0xb9b6a80c, 0x5c8f82bc, 0x89d36b45,
+    0x3a609437, 0xec00c9a9, 0x44715253, 0x0a874b49, 0xd773bc40, 0x7c34671c, 0x02717ef6, 0x4feb5536,
+    0xa2d02fff, 0xd2bf60c4, 0xd43f03c0, 0x50b4ef6d, 0x07478cd1, 0x006e1888, 0xa2e53f55, 0xb9e6d4bc,
+    0xa2048016, 0x97573833, 0xd7207d67, 0xde0f8f3d, 0x72f87b33, 0xabcc4f33, 0x7688c55d, 0x7b00a6b0,
+    0x947b0001, 0x570075d2, 0xf9bb88f8, 0x8942019e, 0x4264a5ff, 0x856302e0, 0x72dbd92b, 0xee971b69,
+    0x6ea22fde, 0x5f08ae2b, 0xaf7a616d, 0xe5c98767, 0xcf1febd2, 0x61efc8c2, 0xf1ac2571, 0xcc8239c2,
+    0x67214cb8, 0xb1e583d1, 0xb7dc3e62, 0x7f10bdce, 0xf90a5c38, 0x0ff0443d, 0x606e6dc6, 0x60543a49,
+    0x5727c148, 0x2be98a1d, 0x8ab41738, 0x20e1be24, 0xaf96da0f, 0x68458425, 0x99833be5, 0x600d457d,
+    0x282f9350, 0x8334b362, 0xd91d1120, 0x2b6d8da0, 0x642b1e31, 0x9c305a00, 0x52bce688, 0x1b03588a,
+    0xf7baefd5, 0x4142ed9c, 0xa4315c11, 0x83323ec5, 0xdfef4636, 0xa133c501, 0xe9d3531c, 0xee353783
+};
+
+static const uint32_t S4[256] = {
+    0x9db30420, 0x1fb6e9de, 0xa7be7bef, 0xd273a298, 0x4a4f7bdb, 0x64ad8c57, 0x85510443, 0xfa020ed1,
+    0x7e287aff, 0xe60fb663, 0x095f35a1, 0x79ebf120, 0xfd059d43, 0x6497b7b1, 0xf3641f63, 0x241e4adf,
+    0x28147f5f, 0x4fa2b8cd, 0xc9430040, 0x0cc32220, 0xfdd30b30, 0xc0a5374f, 0x1d2d00d9, 0x24147b15,
+    0xee4d111a, 0x0fca5167, 0x71ff904c, 0x2d195ffe, 0x1a05645f, 0x0c13fefe, 0x081b08ca, 0x05170121,
+    0x80530100, 0xe83e5efe, 0xac9af4f8, 0x7fe72701, 0xd2b8ee5f, 0x06df4261, 0xbb9e9b8a, 0x7293ea25,
+    0xce84ffdf, 0xf5718801, 0x3dd64b04, 0xa26f263b, 0x7ed48400, 0x547eebe6, 0x446d4ca0, 0x6cf3d6f5,
+    0x2649abdf, 0xaea0c7f5, 0x36338cc1, 0x503f7e93, 0xd3772061, 0x11b638e1, 0x72500e03, 0xf80eb2bb,
+    0xabe0502e, 0xec8d77de, 0x57971e81, 0xe14f6746, 0xc9335400, 0x6920318f, 0x081dbb99, 0xffc304a5,
+    0x4d351805, 0x7f3d5ce3, 0xa6c866c6, 0x5d5bcca9, 0xdaec6fea, 0x9f926f91, 0x9f46222f, 0x3991467d,
+    0xa5bf6d8e, 0x1143c44f, 0x43958302, 0xd0214eeb, 0x022083b8, 0x3fb6180c, 0x18f8931e, 0x281658e6,
+    0x26486e3e, 0x8bd78a70, 0x7477e4c1, 0xb506e07c, 0xf32d0a25, 0x79098b02, 0xe4eabb81, 0x28123b23,
+    0x69dead38, 0x1574ca16, 0xdf871b62, 0x211c40b7, 0xa51a9ef9, 0x0014377b, 0x041e8ac8, 0x09114003,
+    0xbd59e4d2, 0xe3d156d5, 0x4fe876d5, 0x2f91a340, 0x557be8de, 0x00eae4a7, 0x0ce5c2ec, 0x4db4bba6,
+    0xe756bdff, 0xdd3369ac, 0xec17b035, 0x06572327, 0x99afc8b0, 0x56c8c391, 0x6b65811c, 0x5e146119,
+    0x6e85cb75, 0xbe07c002, 0xc2325577, 0x893ff4ec, 0x5bbfc92d, 0xd0ec3b25, 0xb7801ab7, 0x8d6d3b24,
+    0x20c763ef, 0xc366a5fc, 0x9c382880, 0x0ace3205, 0xaac9548a, 0xeca1d7c7, 0x041afa32, 0x1d16625a,
+    0x6701902c, 0x9b757a54, 0x31d477f7, 0x9126b031, 0x36cc6fdb, 0xc70b8b46, 0xd9e66a48, 0x56e55a79,
+    0x026a4ceb, 0x52437eff, 0x2f8f76b4, 0x0df980a5, 0x8674cde3, 0xedda04eb, 0x17a9be04, 0x2c18f4df,
+    0xb7747f9d, 0xab2af7b4, 0xefc34d20, 0x2e096b7c, 0x1741a254, 0xe5b6a035, 0x213d42f6, 0x2c1c7c26,
+    0x61c2f50f, 0x6552daf9, 0xd2c231f8, 0x25130f69, 0xd8167fa2, 0x0418f2c8, 0x001a96a6, 0x0d1526ab,
+    0x63315c21, 0x5e0a72ec, 0x49bafefd, 0x187908d9, 0x8d0dbd86, 0x311170a7, 0x3e9b640c, 0xcc3e10d7,
+    0xd5cad3b6, 0x0caec388, 0xf73001e1, 0x6c728aff, 0x71eae2a1, 0x1f9af36e, 0xcfcbd12f, 0xc1de8417,
+    0xac07be6b, 0xcb44a1d8, 0x8b9b0f56, 0x013988c3, 0xb1c52fca, 0xb4be31cd, 0xd8782806, 0x12a3a4e2,
+    0x6f7de532, 0x58fd7eb6, 0xd01ee900, 0x24adffc2, 0xf4990fc5, 0x9711aac5, 0x001d7b95, 0x82e5e7d2,
+    0x109873f6, 0x00613096, 0xc32d9521, 0xada121ff, 0x29908415, 0x7fbb977f, 0xaf9eb3db, 0x29c9ed2a,
+    0x5ce2a465, 0xa730f32c, 0xd0aa3fe8, 0x8a5cc091, 0xd49e2ce7, 0x0ce454a9, 0xd60acd86, 0x015f1919,
+    0x77079103, 0xdea03af6, 0x78a8565e, 0xdee356df, 0x21f05cbe, 0x8b75e387, 0xb3c50651, 0xb8a5c3ef,
+    0xd8eeb6d2, 0xe523be77, 0xc2154529, 0x2f69efdf, 0xafe67afb, 0xf470c4b2, 0xf3e0eb5b, 0xd6cc9876,
+    0x39e4460c, 0x1fda8538, 0x1987832f, 0xca007367, 0xa99144f8, 0x296b299e, 0x492fc295, 0x9266beab,
+    0xb5676e69, 0x9bd3ddda, 0xdf7e052f, 0xdb25701c, 0x1b5e51ee, 0xf65324e6, 0x6afce36c, 0x0316cc04,
+    0x8644213e, 0xb7dc59d0, 0x7965291f, 0xccd6fd43, 0x41823979, 0x932bcdf6, 0xb657c34d, 0x4edfd282,
+    0x7ae5290c, 0x3cb9536b, 0x851e20fe, 0x9833557e, 0x13ecf0b0, 0xd3ffb372, 0x3f85c5c1, 0x0aef7ed2
+};
+
+static const uint32_t S5[256] = {
+    0x7ec90c04, 0x2c6e74b9, 0x9b0e66df, 0xa6337911, 0xb86a7fff, 0x1dd358f5, 0x44dd9d44, 0x1731167f,
+    0x08fbf1fa, 0xe7f511cc, 0xd2051b00, 0x735aba00, 0x2ab722d8, 0x386381cb, 0xacf6243a, 0x69befd7a,
+    0xe6a2e77f, 0xf0c720cd, 0xc4494816, 0xccf5c180, 0x38851640, 0x15b0a848, 0xe68b18cb, 0x4caadeff,
+    0x5f480a01, 0x0412b2aa, 0x259814fc, 0x41d0efe2, 0x4e40b48d, 0x248eb6fb, 0x8dba1cfe, 0x41a99b02,
+    0x1a550a04, 0xba8f65cb, 0x7251f4e7, 0x95a51725, 0xc106ecd7, 0x97a5980a, 0xc539b9aa, 0x4d79fe6a,
+    0xf2f3f763, 0x68af8040, 0xed0c9e56, 0x11b4958b, 0xe1eb5a88, 0x8709e6b0, 0xd7e07156, 0x4e29fea7,
+    0x6366e52d, 0x02d1c000, 0xc4ac8e05, 0x9377f571, 0x0c05372a, 0x578535f2, 0x2261be02, 0xd642a0c9,
+    0xdf13a280, 0x74b55bd2, 0x682199c0, 0xd421e5ec, 0x53fb3ce8, 0xc8adedb3, 0x28a87fc9, 0x3d959981,
+    0x5c1ff900, 0xfe38d399, 0x0c4eff0b, 0x062407ea, 0xaa2f4fb1, 0x4fb96976, 0x90c79505, 0xb0a8a774,
+    0xef55a1ff, 0xe59ca2c2, 0xa6b62d27, 0xe66a4263, 0xdf65001f, 0x0ec50966, 0xdfdd55bc, 0x29de0655,
+    0x911e739a, 0x17af8975, 0x32c7911c, 0x89f89468, 0x0d01e980, 0x524755f4, 0x03b63cc9, 0x0cc844b2,
+    0xbcf3f0aa, 0x87ac36e9, 0xe53a7426, 0x01b3d82b, 0x1a9e7449, 0x64ee2d7e, 0xcddbb1da, 0x01c94910,
+    0xb868bf80, 0x0d26f3fd, 0x9342ede7, 0x04a5c284, 0x636737b6, 0x50f5b616, 0xf24766e3, 0x8eca36c1,
+    0x136e05db, 0xfef18391, 0xfb887a37, 0xd6e7f7d4, 0xc7fb7dc9, 0x3063fcdf, 0xb6f589de, 0xec2941da,
+    0x26e46695, 0xb7566419, 0xf654efc5, 0xd08d58b7, 0x48925401, 0xc1bacb7f, 0xe5ff550f, 0xb6083049,
+    0x5bb5d0e8, 0x87d72e5a, 0xab6a6ee1, 0x223a66ce, 0xc62bf3cd, 0x9e0885f9, 0x68cb3e47, 0x086c010f,
+    0xa21de820, 0xd18b69de, 0xf3f65777, 0xfa02c3f6, 0x407edac3, 0xcbb3d550, 0x1793084d, 0xb0d70eba,
+    0x0ab378d5, 0xd951fb0c, 0xded7da56, 0x4124bbe4, 0x94ca0b56, 0x0f5755d1, 0xe0e1e56e, 0x6184b5be,
+    0x580a249f, 0x94f74bc0, 0xe327888e, 0x9f7b5561, 0xc3dc0280, 0x05687715, 0x646c6bd7, 0x44904db3,
+    0x66b4f0a3, 0xc0f1648a, 0x697ed5af, 0x49e92ff6, 0x309e374f, 0x2cb6356a, 0x85808573, 0x4991f840,
+    0x76f0ae02, 0x083be84d, 0x28421c9a, 0x44489406, 0x736e4cb8, 0xc1092910, 0x8bc95fc6, 0x7d869cf4,
+    0x134f616f, 0x2e77118d, 0xb31b2be1, 0xaa90b472, 0x3ca5d717, 0x7d161bba, 0x9cad9010, 0xaf462ba2,
+    0x9fe459d2, 0x45d34559, 0xd9f2da13, 0xdbc65487, 0xf3e4f94e, 0x176d486f, 0x097c13ea, 0x631da5c7,
+    0x445f7382, 0x175683f4, 0xcdc66a97, 0x70be0288, 0xb3cdcf72, 0x6e5dd2f3, 0x20936079, 0x459b80a5,
+    0xbe60e2db, 0xa9c23101, 0xeba5315c, 0x224e42f2, 0x1c5c1572, 0xf6721b2c, 0x1ad2fff3, 0x8c25404e,
+    0x324ed72f, 0x4067b7fd, 0x0523138e, 0x5ca3bc78, 0xdc0fd66e, 0x75922283, 0x784d6b17, 0x58ebb16e,
+    0x44094f85, 0x3f481d87, 0xfcfeae7b, 0x77b5ff76, 0x8c2302bf, 0xaaf47556, 0x5f46b02a, 0x2b092801,
+    0x3d38f5f7, 0x0ca81f36, 0x52af4a8a, 0x66d5e7c0, 0xdf3b0874, 0x95055110, 0x1b5ad7a8, 0xf61ed5ad,
+    0x6cf6e479, 0x20758184, 0xd0cefa65, 0x88f7be58, 0x4a046826, 0x0ff6f8f3, 0xa09c7f70, 0x5346aba0,
+    0x5ce96c28, 0xe176eda3, 0x6bac307f, 0x376829d2, 0x85360fa9, 0x17e3fe2a, 0x24b79767, 0xf5a96b20,
+    0xd6cd2595, 0x68ff1ebf, 0x7555442c, 0xf19f06be, 0xf9e0659a, 0xeeb9491d, 0x34010718, 0xbb30cab8,
+    0xe822fe15, 0x88570983, 0x750e6249, 0xda627e55, 0x5e76ffa8, 0xb1534546, 0x6d47de08, 0xefe9e7d4
+};
+
+static const uint32_t S6[256] = {
+    0xf6fa8f9d, 0x2cac6ce1, 0x4ca34867, 0xe2337f7c, 0x95db08e7, 0x016843b4, 0xeced5cbc, 0x325553ac,
+    0xbf9f0960, 0xdfa1e2ed, 0x83f0579d, 0x63ed86b9, 0x1ab6a6b8, 0xde5ebe39, 0xf38ff732, 0x8989b138,
+    0x33f14961, 0xc01937bd, 0xf506c6da, 0xe4625e7e, 0xa308ea99, 0x4e23e33c, 0x79cbd7cc, 0x48a14367,
+    0xa3149619, 0xfec94bd5, 0xa114174a, 0xeaa01866, 0xa084db2d, 0x09a8486f, 0xa888614a, 0x2900af98,
+    0x01665991, 0xe1992863, 0xc8f30c60, 0x2e78ef3c, 0xd0d51932, 0xcf0fec14, 0xf7ca07d2, 0xd0a82072,
+    0xfd41197e, 0x9305a6b0, 0xe86be3da, 0x74bed3cd, 0x372da53c, 0x4c7f4448, 0xdab5d440, 0x6dba0ec3,
+    0x083919a7, 0x9fbaeed9, 0x49dbcfb0, 0x4e670c53, 0x5c3d9c01, 0x64bdb941, 0x2c0e636a, 0xba7dd9cd,
+    0xea6f7388, 0xe70bc762, 0x35f29adb, 0x5c4cdd8d, 0xf0d48d8c, 0xb88153e2, 0x08a19866, 0x1ae2eac8,
+    0x284caf89, 0xaa928223, 0x9334be53, 0x3b3a21bf, 0x16434be3, 0x9aea3906, 0xefe8c36e, 0xf890cdd9,
+    0x80226dae, 0xc340a4a3, 0xdf7e9c09, 0xa694a807, 0x5b7c5ecc, 0x221db3a6, 0x9a69a02f, 0x68818a54,
+    0xceb2296f, 0x53c0843a, 0xfe893655, 0x25bfe68a, 0xb4628abc, 0xcf222ebf, 0x25ac6f48, 0xa9a99387,
+    0x53bddb65, 0xe76ffbe7, 0xe967fd78, 0x0ba93563, 0x8e342bc1, 0xe8a11be9, 0x4980740d, 0xc8087dfc,
+    0x8de4bf99, 0xa11101a0, 0x7fd37975, 0xda5a26c0, 0xe81f994f, 0x9528cd89, 0xfd339fed, 0xb87834bf,
+    0x5f04456d, 0x22258698, 0xc9c4c83b, 0x2dc156be, 0x4f628daa, 0x57f55ec5, 0xe2220abe, 0xd2916ebf,
+    0x4ec75b95, 0x24f2c3c0, 0x42d15d99, 0xcd0d7fa0, 0x7b6e27ff, 0xa8dc8af0, 0x7345c106, 0xf41e232f,
+    0x35162386, 0xe6ea8926, 0x3333b094, 0x157ec6f2, 0x372b74af, 0x692573e4, 0xe9a9d848, 0xf3160289,
+    0x3a62ef1d, 0xa787e238, 0xf3a5f676, 0x74364853, 0x20951063, 0x4576698d, 0xb6fad407, 0x592af950,
+    0x36f73523, 0x4cfb6e87, 0x7da4cec0, 0x6c152daa, 0xcb0396a8, 0xc50dfe5d, 0xfcd707ab, 0x0921c42f,
+    0x89dff0bb, 0x5fe2be78, 0x448f4f33, 0x754613c9, 0x2b05d08d, 0x48b9d585, 0xdc049441, 0xc8098f9b,
+    0x7dede786, 0xc39a3373, 0x42410005, 0x6a091751, 0x0ef3c8a6, 0x890072d6, 0x28207682, 0xa9a9f7be,
+    0xbf32679d, 0xd45b5b75, 0xb353fd00, 0xcbb0e358, 0x830f220a, 0x1f8fb214, 0xd372cf08, 0xcc3c4a13,
+    0x8cf63166, 0x061c87be, 0x88c98f88, 0x6062e397, 0x47cf8e7a, 0xb6c85283, 0x3cc2acfb, 0x3fc06976,
+    0x4e8f0252, 0x64d8314d, 0xda3870e3, 0x1e665459, 0xc10908f0, 0x513021a5, 0x6c5b68b7, 0x822f8aa0,
+    0x3007cd3e, 0x74719eef, 0xdc872681, 0x073340d4, 0x7e432fd9, 0x0c5ec241, 0x8809286c, 0xf592d891,
+    0x08a930f6, 0x957ef305, 0xb7fbffbd, 0xc266e96f, 0x6fe4ac98, 0xb173ecc0, 0xbc60b42a, 0x953498da,
+    0xfba1ae12, 0x2d4bd736, 0x0f25faab, 0xa4f3fceb, 0xe2969123, 0x257f0c3d, 0x9348af49, 0x361400bc,
+    0xe8816f4a, 0x3814f200, 0xa3f94043, 0x9c7a54c2, 0xbc704f57, 0xda41e7f9, 0xc25ad33a, 0x54f4a084,
+    0xb17f5505, 0x59357cbe, 0xedbd15c8, 0x7f97c5ab, 0xba5ac7b5, 0xb6f6deaf, 0x3a479c3a, 0x5302da25,
+    0x653d7e6a, 0x54268d49, 0x51a477ea, 0x5017d55b, 0xd7d25d88, 0x44136c76, 0x0404a8c8, 0xb8e5a121,
+    0xb81a928a, 0x60ed5869, 0x97c55b96, 0xeaec991b, 0x29935913, 0x01fdb7f1, 0x088e8dfa, 0x9ab6f6f5,
+    0x3b4cbf9f, 0x4a5de3ab, 0xe6051d35, 0xa0e1d855, 0xd36b4cf1, 0xf544edeb, 0xb0e93524, 0xbebb8fbd,
+    0xa2d762cf, 0x49c92f54, 0x38b5f331, 0x7128a454, 0x48392905, 0xa65b1db8, 0x851c97bd, 0xd675cf2f
+};
+
+static const uint32_t S7[256] = {
+    0x85e04019, 0x332bf567, 0x662dbfff, 0xcfc65693, 0x2a8d7f6f, 0xab9bc912, 0xde6008a1, 0x2028da1f,
+    0x0227bce7, 0x4d642916, 0x18fac300, 0x50f18b82, 0x2cb2cb11, 0xb232e75c, 0x4b3695f2, 0xb28707de,
+    0xa05fbcf6, 0xcd4181e9, 0xe150210c, 0xe24ef1bd, 0xb168c381, 0xfde4e789, 0x5c79b0d8, 0x1e8bfd43,
+    0x4d495001, 0x38be4341, 0x913cee1d, 0x92a79c3f, 0x089766be, 0xbaeeadf4, 0x1286becf, 0xb6eacb19,
+    0x2660c200, 0x7565bde4, 0x64241f7a, 0x8248dca9, 0xc3b3ad66, 0x28136086, 0x0bd8dfa8, 0x356d1cf2,
+    0x107789be, 0xb3b2e9ce, 0x0502aa8f, 0x0bc0351e, 0x166bf52a, 0xeb12ff82, 0xe3486911, 0xd34d7516,
+    0x4e7b3aff, 0x5f43671b, 0x9cf6e037, 0x4981ac83, 0x334266ce, 0x8c9341b7, 0xd0d854c0, 0xcb3a6c88,
+    0x47bc2829, 0x4725ba37, 0xa66ad22b, 0x7ad61f1e, 0x0c5cbafa, 0x4437f107, 0xb6e79962, 0x42d2d816,
+    0x0a961288, 0xe1a5c06e, 0x13749e67, 0x72fc081a, 0xb1d139f7, 0xf9583745, 0xcf19df58, 0xbec3f756,
+    0xc06eba30, 0x07211b24, 0x45c28829, 0xc95e317f, 0xbc8ec511, 0x38bc46e9, 0xc6e6fa14, 0xbae8584a,
+    0xad4ebc46, 0x468f508b, 0x7829435f, 0xf124183b, 0x821dba9f, 0xaff60ff4, 0xea2c4e6d, 0x16e39264,
+    0x92544a8b, 0x009b4fc3, 0xaba68ced, 0x9ac96f78, 0x06a5b79a, 0xb2856e6e, 0x1aec3ca9, 0xbe838688,
+    0x0e0804e9, 0x55f1be56, 0xe7e5363b, 0xb3a1f25d, 0xf7debb85, 0x61fe033c, 0x16746233, 0x3c034c28,
+    0xda6d0c74, 0x79aac56c, 0x3ce4e1ad, 0x51f0c802, 0x98f8f35a, 0x1626a49f, 0xeed82b29, 0x1d382fe3,
+    0x0c4fb99a, 0xbb325778, 0x3ec6d97b, 0x6e77a6a9, 0xcb658b5c, 0xd45230c7, 0x2bd1408b, 0x60c03eb7,
+    0xb9068d78, 0xa33754f4, 0xf430c87d, 0xc8a71302, 0xb96d8c32, 0xebd4e7be, 0xbe8b9d2d, 0x7979fb06,
+    0xe7225308, 0x8b75cf77, 0x11ef8da4, 0xe083c858, 0x8d6b786f, 0x5a6317a6, 0xfa5cf7a0, 0x5dda0033,
+    0xf28ebfb0, 0xf5b9c310, 0xa0eac280, 0x08b9767a, 0xa3d9d2b0, 0x79d34217, 0x021a718d, 0x9ac6336a,
+    0x2711fd60, 0x438050e3, 0x069908a8, 0x3d7fedc4, 0x826d2bef, 0x4eeb8476, 0x488dcf25, 0x36c9d566,
+    0x28e74e41, 0xc2610aca, 0x3d49a9cf, 0xbae3b9df, 0xb65f8de6, 0x92aeaf64, 0x3ac7d5e6, 0x9ea80509,
+    0xf22b017d, 0xa4173f70, 0xdd1e16c3, 0x15e0d7f9, 0x50b1b887, 0x2b9f4fd5, 0x625aba82, 0x6a017962,
+    0x2ec01b9c, 0x15488aa9, 0xd716e740, 0x40055a2c, 0x93d29a22, 0xe32dbf9a, 0x058745b9, 0x3453dc1e,
+    0xd699296e, 0x496cff6f, 0x1c9f4986, 0xdfe2ed07, 0xb87242d1, 0x19de7eae, 0x053e561a, 0x15ad6f8c,
+    0x66626c1c, 0x7154c24c, 0xea082b2a, 0x93eb2939, 0x17dcb0f0, 0x58d4f2ae, 0x9ea294fb, 0x52cf564c,
+    0x9883fe66, 0x2ec40581, 0x763953c3, 0x01d6692e, 0xd3a0c108, 0xa1e7160e, 0xe4f2dfa6, 0x693ed285,
+    0x74904698, 0x4c2b0edd, 0x4f757656, 0x5d393378, 0xa132234f, 0x3d321c5d, 0xc3f5e194, 0x4b269301,
+    0xc79f022f, 0x3c997e7e, 0x5e4f9504, 0x3ffafbbd, 0x76f7ad0e, 0x296693f4, 0x3d1fce6f, 0xc61e45be,
+    0xd3b5ab34, 0xf72bf9b7, 0x1b0434c0, 0x4e72b567, 0x5592a33d, 0xb5229301, 0xcfd2a87f, 0x60aeb767,
+    0x1814386b, 0x30bcc33d, 0x38a0c07d, 0xfd1606f2, 0xc363519b, 0x589dd390, 0x5479f8e6, 0x1cb8d647,
+    0x97fd61a9, 0xea7759f4, 0x2d57539d, 0x569a58cf, 0xe84e63ad, 0x462e1b78, 0x6580f87e, 0xf3817914,
+    0x91da55f4, 0x40a230f3, 0xd1988f35, 0xb6e318d2, 0x3ffa50bc, 0x3d40f021, 0xc3c0bdae, 0x4958c24c,
+    0x518f36b2, 0x84b1d370, 0x0fedce83, 0x878ddada, 0xf2a279c7, 0x94e01be8, 0x90716f4b, 0x954b8aa3
+};
+
+static const uint32_t S8[256] = {
+    0xe216300d, 0xbbddfffc, 0xa7ebdabd, 0x35648095, 0x7789f8b7, 0xe6c1121b, 0x0e241600, 0x052ce8b5,
+    0x11a9cfb0, 0xe5952f11, 0xece7990a, 0x9386d174, 0x2a42931c, 0x76e38111, 0xb12def3a, 0x37ddddfc,
+    0xde9adeb1, 0x0a0cc32c, 0xbe197029, 0x84a00940, 0xbb243a0f, 0xb4d137cf, 0xb44e79f0, 0x049eedfd,
+    0x0b15a15d, 0x480d3168, 0x8bbbde5a, 0x669ded42, 0xc7ece831, 0x3f8f95e7, 0x72df191b, 0x7580330d,
+    0x94074251, 0x5c7dcdfa, 0xabbe6d63, 0xaa402164, 0xb301d40a, 0x02e7d1ca, 0x53571dae, 0x7a3182a2,
+    0x12a8ddec, 0xfdaa335d, 0x176f43e8, 0x71fb46d4, 0x38129022, 0xce949ad4, 0xb84769ad, 0x965bd862,
+    0x82f3d055, 0x66fb9767, 0x15b80b4e, 0x1d5b47a0, 0x4cfde06f, 0xc28ec4b8, 0x57e8726e, 0x647a78fc,
+    0x99865d44, 0x608bd593, 0x6c200e03, 0x39dc5ff6, 0x5d0b00a3, 0xae63aff2, 0x7e8bd632, 0x70108c0c,
+    0xbbd35049, 0x2998df04, 0x980cf42a, 0x9b6df491, 0x9e7edd53, 0x06918548, 0x58cb7e07, 0x3b74ef2e,
+    0x522fffb1, 0xd24708cc, 0x1c7e27cd, 0xa4eb215b, 0x3cf1d2e2, 0x19b47a38, 0x424f7618, 0x35856039,
+    0x9d17dee7, 0x27eb35e6, 0xc9aff67b, 0x36baf5b8, 0x09c467cd, 0xc18910b1, 0xe11dbf7b, 0x06cd1af8,
+    0x7170c608, 0x2d5e3354, 0xd4de495a, 0x64c6d006, 0xbcc0c62c, 0x3dd00db3, 0x708f8f34, 0x77d51b42,
+    0x264f620f, 0x24b8d2bf, 0x15c1b79e, 0x46a52564, 0xf8d7e54e, 0x3e378160, 0x7895cda5, 0x859c15a5,
+    0xe6459788, 0xc37bc75f, 0xdb07ba0c, 0x0676a3ab, 0x7f229b1e, 0x31842e7b, 0x24259fd7, 0xf8bef472,
+    0x835ffcb8, 0x6df4c1f2, 0x96f5b195, 0xfd0af0fc, 0xb0fe134c, 0xe2506d3d, 0x4f9b12ea, 0xf215f225,
+    0xa223736f, 0x9fb4c428, 0x25d04979, 0x34c713f8, 0xc4618187, 0xea7a6e98, 0x7cd16efc, 0x1436876c,
+    0xf1544107, 0xbedeee14, 0x56e9af27, 0xa04aa441, 0x3cf7c899, 0x92ecbae6, 0xdd67016d, 0x151682eb,
+    0xa842eedf, 0xfdba60b4, 0xf1907b75, 0x20e3030f, 0x24d8c29e, 0xe139673b, 0xefa63fb8, 0x71873054,
+    0xb6f2cf3b, 0x9f326442, 0xcb15a4cc, 0xb01a4504, 0xf1e47d8d, 0x844a1be5, 0xbae7dfdc, 0x42cbda70,
+    0xcd7dae0a, 0x57e85b7a, 0xd53f5af6, 0x20cf4d8c, 0xcea4d428, 0x79d130a4, 0x3486ebfb, 0x33d3cddc,
+    0x77853b53, 0x37effcb5, 0xc5068778, 0xe580b3e6, 0x4e68b8f4, 0xc5c8b37e, 0x0d809ea2, 0x398feb7c,
+    0x132a4f94, 0x43b7950e, 0x2fee7d1c, 0x223613bd, 0xdd06caa2, 0x37df932b, 0xc4248289, 0xacf3ebc3,
+    0x5715f6b7, 0xef3478dd, 0xf267616f, 0xc148cbe4, 0x9052815e, 0x5e410fab, 0xb48a2465, 0x2eda7fa4,
+    0xe87b40e4, 0xe98ea084, 0x5889e9e1, 0xefd390fc, 0xdd07d35b, 0xdb485694, 0x38d7e5b2, 0x57720101,
+    0x730edebc, 0x5b643113, 0x94917e4f, 0x503c2fba, 0x646f1282, 0x7523d24a, 0xe0779695, 0xf9c17a8f,
+    0x7a5b2121, 0xd187b896, 0x29263a4d, 0xba510cdf, 0x81f47c9f, 0xad1163ed, 0xea7b5965, 0x1a00726e,
+    0x11403092, 0x00da6d77, 0x4a0cdd61, 0xad1f4603, 0x605bdfb0, 0x9eedc364, 0x22ebe6a8, 0xcee7d28a,
+    0xa0e736a0, 0x5564a6b9, 0x10853209, 0xc7eb8f37, 0x2de705ca, 0x8951570f, 0xdf09822b, 0xbd691a6c,
+    0xaa12e4f2, 0x87451c0f, 0xe0f6a27a, 0x3ada4819, 0x4cf1764f, 0x0d771c2b, 0x67cdb156, 0x350d8384,
+    0x5938fa0f, 0x42399ef3, 0x36997b07, 0x0e84093d, 0x4aa93e61, 0x8360d87b, 0x1fa98b0c, 0x1149382c,
+    0xe97625a5, 0x0614d1b7, 0x0e25244b, 0x0c768347, 0x589e8d82, 0x0d2059d1, 0xa466bb1e, 0xf8da0a82,
+    0x04f19130, 0xba6e4ec0, 0x99265164, 0x1ee7230d, 0x50b2ad80, 0xeaee6801, 0x8db2a283, 0xea8bf59e
+};
+
+static void generate_round_keys(int rnds, uint32_t* K, uint32_t* x, uint32_t* z)
+{
+    COMPUTE_Z;
+
+    K[1] = S5[IA(z[2])] ^ S6[IB(z[2])] ^ S7[ID(z[1])] ^ S8[IC(z[1])] ^ S5[IC(z[0])];
+    K[2] = S5[IC(z[2])] ^ S6[ID(z[2])] ^ S7[IB(z[1])] ^ S8[IA(z[1])] ^ S6[IC(z[1])];
+    K[3] = S5[IA(z[3])] ^ S6[IB(z[3])] ^ S7[ID(z[0])] ^ S8[IC(z[0])] ^ S7[IB(z[2])];
+    K[4] = S5[IC(z[3])] ^ S6[ID(z[3])] ^ S7[IB(z[0])] ^ S8[IA(z[0])] ^ S8[IA(z[3])];
+
+    COMPUTE_X;
+
+    K[5] = S5[ID(x[0])] ^ S6[IC(x[0])] ^ S7[IA(x[3])] ^ S8[IB(x[3])] ^ S5[IA(x[2])];
+    K[6] = S5[IB(x[0])] ^ S6[IA(x[0])] ^ S7[IC(x[3])] ^ S8[ID(x[3])] ^ S6[IB(x[3])];
+    K[7] = S5[ID(x[1])] ^ S6[IC(x[1])] ^ S7[IA(x[2])] ^ S8[IB(x[2])] ^ S7[ID(x[0])];
+    K[8] = S5[IB(x[1])] ^ S6[IA(x[1])] ^ S7[IC(x[2])] ^ S8[ID(x[2])] ^ S8[ID(x[1])];
+
+    COMPUTE_Z;
+
+    K[9] = S5[ID(z[0])] ^ S6[IC(z[0])] ^ S7[IA(z[3])] ^ S8[IB(z[3])] ^ S5[IB(z[2])];
+    K[10] = S5[IB(z[0])] ^ S6[IA(z[0])] ^ S7[IC(z[3])] ^ S8[ID(z[3])] ^ S6[IA(z[3])];
+    K[11] = S5[ID(z[1])] ^ S6[IC(z[1])] ^ S7[IA(z[2])] ^ S8[IB(z[2])] ^ S7[IC(z[0])];
+    K[12] = S5[IB(z[1])] ^ S6[IA(z[1])] ^ S7[IC(z[2])] ^ S8[ID(z[2])] ^ S8[IC(z[1])];
+
+    COMPUTE_X;
+
+    if (rnds == 16) {
+        K[13] = S5[IA(x[2])] ^ S6[IB(x[2])] ^ S7[ID(x[1])] ^ S8[IC(x[1])] ^ S5[ID(x[0])];
+        K[14] = S5[IC(x[2])] ^ S6[ID(x[2])] ^ S7[IB(x[1])] ^ S8[IA(x[1])] ^ S6[ID(x[1])];
+        K[15] = S5[IA(x[3])] ^ S6[IB(x[3])] ^ S7[ID(x[0])] ^ S8[IC(x[0])] ^ S7[IA(x[2])];
+        K[16] = S5[IC(x[3])] ^ S6[ID(x[3])] ^ S7[IB(x[0])] ^ S8[IA(x[0])] ^ S8[IB(x[3])];
+    }
+}
+
+static void encipher(AVCAST5* cs, uint8_t* dst, const uint8_t* src)
+{
+    uint32_t r, l, f, I;
+    l = AV_RB32(src);
+    r = AV_RB32(src + 4);
+    F1(l, r, 1);
+    F2(r, l, 2);
+    F3(l, r, 3);
+    F1(r, l, 4);
+    F2(l, r, 5);
+    F3(r, l, 6);
+    F1(l, r, 7);
+    F2(r, l, 8);
+    F3(l, r, 9);
+    F1(r, l, 10);
+    F2(l, r, 11);
+    F3(r, l, 12);
+    if (cs->rounds == 16) {
+        F1(l, r, 13);
+        F2(r, l, 14);
+        F3(l, r, 15);
+        F1(r, l, 16);
+    }
+    AV_WB32(dst, r);
+    AV_WB32(dst + 4, l);
+}
+
+static void decipher(AVCAST5* cs, uint8_t* dst, const uint8_t* src, uint8_t *iv)
+{
+    uint32_t f, I, r, l;
+    l = AV_RB32(src);
+    r = AV_RB32(src + 4);
+    if (cs->rounds == 16) {
+        F1(l, r, 16);
+        F3(r, l, 15);
+        F2(l, r, 14);
+        F1(r, l, 13);
+    }
+    F3(l, r, 12);
+    F2(r, l, 11);
+    F1(l, r, 10);
+    F3(r, l, 9);
+    F2(l, r, 8);
+    F1(r, l, 7);
+    F3(l, r, 6);
+    F2(r, l, 5);
+    F1(l, r, 4);
+    F3(r, l, 3);
+    F2(l, r, 2);
+    F1(r, l, 1);
+    if (iv) {
+        r ^= AV_RB32(iv);
+        l ^= AV_RB32(iv + 4);
+        memcpy(iv, src, 8);
+    }
+    AV_WB32(dst, r);
+    AV_WB32(dst + 4, l);
+}
+
+struct AVCAST5 *av_cast5_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVCAST5));
+}
+
+av_cold int av_cast5_init(AVCAST5* cs, const uint8_t *key, int key_bits)
+{
+    uint8_t newKey[16];
+    int i;
+    uint32_t p[4], q[4];
+    if (key_bits % 8 || key_bits < 40 || key_bits > 128)
+        return AVERROR(EINVAL);
+    memset(newKey, 0, sizeof(newKey));
+    memcpy(newKey, key, key_bits >> 3);
+
+    cs->rounds = key_bits <= 80 ? 12 : 16;
+    for (i = 0; i < 4; i++)
+        q[i] = AV_RB32(newKey + (4 * i));
+    generate_round_keys(cs->rounds, cs->Km, q, p);
+    generate_round_keys(cs->rounds, cs->Kr, q, p);
+    for (i = 0; i <= cs->rounds; i++)
+        cs->Kr[i] = cs->Kr[i] & 0x1f;
+    return 0;
+}
+
+void av_cast5_crypt2(AVCAST5* cs, uint8_t* dst, const uint8_t* src, int count, uint8_t *iv, int decrypt)
+{
+    int i;
+    while (count--) {
+        if (decrypt) {
+            decipher(cs, dst, src, iv);
+        } else {
+            if (iv) {
+                for (i = 0; i < 8; i++)
+                    dst[i] = src[i] ^ iv[i];
+                encipher(cs, dst, dst);
+                memcpy(iv, dst, 8);
+            } else {
+                encipher(cs, dst, src);
+            }
+        }
+        src = src + 8;
+        dst = dst + 8;
+    }
+}
+void av_cast5_crypt(AVCAST5* cs, uint8_t* dst, const uint8_t* src, int count, int decrypt)
+{
+    while (count--) {
+        if (decrypt){
+            decipher(cs, dst, src, NULL);
+        } else {
+            encipher(cs, dst, src);
+        }
+        src = src + 8;
+        dst = dst + 8;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cast5.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cast5.h
new file mode 100644
index 000000000..ad5b347e6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cast5.h
@@ -0,0 +1,80 @@
+/*
+ * An implementation of the CAST128 algorithm as mentioned in RFC2144
+ * Copyright (c) 2014 Supraja Meedinti
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_CAST5_H
+#define AVUTIL_CAST5_H
+
+#include <stdint.h>
+
+
+/**
+  * @file
+  * @brief Public header for libavutil CAST5 algorithm
+  * @defgroup lavu_cast5 CAST5
+  * @ingroup lavu_crypto
+  * @{
+  */
+
+extern const int av_cast5_size;
+
+struct AVCAST5;
+
+/**
+  * Allocate an AVCAST5 context
+  * To free the struct: av_free(ptr)
+  */
+struct AVCAST5 *av_cast5_alloc(void);
+/**
+  * Initialize an AVCAST5 context.
+  *
+  * @param ctx an AVCAST5 context
+  * @param key a key of 5,6,...16 bytes used for encryption/decryption
+  * @param key_bits number of keybits: possible are 40,48,...,128
+  * @return 0 on success, less than 0 on failure
+ */
+int av_cast5_init(struct AVCAST5 *ctx, const uint8_t *key, int key_bits);
+
+/**
+  * Encrypt or decrypt a buffer using a previously initialized context, ECB mode only
+  *
+  * @param ctx an AVCAST5 context
+  * @param dst destination array, can be equal to src
+  * @param src source array, can be equal to dst
+  * @param count number of 8 byte blocks
+  * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_cast5_crypt(struct AVCAST5 *ctx, uint8_t *dst, const uint8_t *src, int count, int decrypt);
+
+/**
+  * Encrypt or decrypt a buffer using a previously initialized context
+  *
+  * @param ctx an AVCAST5 context
+  * @param dst destination array, can be equal to src
+  * @param src source array, can be equal to dst
+  * @param count number of 8 byte blocks
+  * @param iv initialization vector for CBC mode, NULL for ECB mode
+  * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_cast5_crypt2(struct AVCAST5 *ctx, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
+/**
+ * @}
+ */
+#endif /* AVUTIL_CAST5_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/channel_layout.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/channel_layout.c
new file mode 100644
index 000000000..3bd5ee29b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/channel_layout.c
@@ -0,0 +1,287 @@
+/*
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * audio channel layout utility functions
+ */
+
+#include <stdint.h>
+
+#include "avstring.h"
+#include "avutil.h"
+#include "channel_layout.h"
+#include "bprint.h"
+#include "common.h"
+
+struct channel_name {
+    const char *name;
+    const char *description;
+};
+
+static const struct channel_name channel_names[] = {
+     [0] = { "FL",        "front left"            },
+     [1] = { "FR",        "front right"           },
+     [2] = { "FC",        "front center"          },
+     [3] = { "LFE",       "low frequency"         },
+     [4] = { "BL",        "back left"             },
+     [5] = { "BR",        "back right"            },
+     [6] = { "FLC",       "front left-of-center"  },
+     [7] = { "FRC",       "front right-of-center" },
+     [8] = { "BC",        "back center"           },
+     [9] = { "SL",        "side left"             },
+    [10] = { "SR",        "side right"            },
+    [11] = { "TC",        "top center"            },
+    [12] = { "TFL",       "top front left"        },
+    [13] = { "TFC",       "top front center"      },
+    [14] = { "TFR",       "top front right"       },
+    [15] = { "TBL",       "top back left"         },
+    [16] = { "TBC",       "top back center"       },
+    [17] = { "TBR",       "top back right"        },
+    [29] = { "DL",        "downmix left"          },
+    [30] = { "DR",        "downmix right"         },
+    [31] = { "WL",        "wide left"             },
+    [32] = { "WR",        "wide right"            },
+    [33] = { "SDL",       "surround direct left"  },
+    [34] = { "SDR",       "surround direct right" },
+    [35] = { "LFE2",      "low frequency 2"       },
+};
+
+static const char *get_channel_name(int channel_id)
+{
+    if (channel_id < 0 || channel_id >= FF_ARRAY_ELEMS(channel_names))
+        return NULL;
+    return channel_names[channel_id].name;
+}
+
+static const struct {
+    const char *name;
+    int         nb_channels;
+    uint64_t     layout;
+} channel_layout_map[] = {
+    { "mono",        1,  AV_CH_LAYOUT_MONO },
+    { "stereo",      2,  AV_CH_LAYOUT_STEREO },
+    { "2.1",         3,  AV_CH_LAYOUT_2POINT1 },
+    { "3.0",         3,  AV_CH_LAYOUT_SURROUND },
+    { "3.0(back)",   3,  AV_CH_LAYOUT_2_1 },
+    { "4.0",         4,  AV_CH_LAYOUT_4POINT0 },
+    { "quad",        4,  AV_CH_LAYOUT_QUAD },
+    { "quad(side)",  4,  AV_CH_LAYOUT_2_2 },
+    { "3.1",         4,  AV_CH_LAYOUT_3POINT1 },
+    { "5.0",         5,  AV_CH_LAYOUT_5POINT0_BACK },
+    { "5.0(side)",   5,  AV_CH_LAYOUT_5POINT0 },
+    { "4.1",         5,  AV_CH_LAYOUT_4POINT1 },
+    { "5.1",         6,  AV_CH_LAYOUT_5POINT1_BACK },
+    { "5.1(side)",   6,  AV_CH_LAYOUT_5POINT1 },
+    { "6.0",         6,  AV_CH_LAYOUT_6POINT0 },
+    { "6.0(front)",  6,  AV_CH_LAYOUT_6POINT0_FRONT },
+    { "hexagonal",   6,  AV_CH_LAYOUT_HEXAGONAL },
+    { "6.1",         7,  AV_CH_LAYOUT_6POINT1 },
+    { "6.1(back)",   7,  AV_CH_LAYOUT_6POINT1_BACK },
+    { "6.1(front)",  7,  AV_CH_LAYOUT_6POINT1_FRONT },
+    { "7.0",         7,  AV_CH_LAYOUT_7POINT0 },
+    { "7.0(front)",  7,  AV_CH_LAYOUT_7POINT0_FRONT },
+    { "7.1",         8,  AV_CH_LAYOUT_7POINT1 },
+    { "7.1(wide)",   8,  AV_CH_LAYOUT_7POINT1_WIDE_BACK },
+    { "7.1(wide-side)",   8,  AV_CH_LAYOUT_7POINT1_WIDE },
+    { "octagonal",   8,  AV_CH_LAYOUT_OCTAGONAL },
+    { "hexadecagonal", 16, AV_CH_LAYOUT_HEXADECAGONAL },
+    { "downmix",     2,  AV_CH_LAYOUT_STEREO_DOWNMIX, },
+};
+
+static uint64_t get_channel_layout_single(const char *name, int name_len)
+{
+    int i;
+    char *end;
+    int64_t layout;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(channel_layout_map); i++) {
+        if (strlen(channel_layout_map[i].name) == name_len &&
+            !memcmp(channel_layout_map[i].name, name, name_len))
+            return channel_layout_map[i].layout;
+    }
+    for (i = 0; i < FF_ARRAY_ELEMS(channel_names); i++)
+        if (channel_names[i].name &&
+            strlen(channel_names[i].name) == name_len &&
+            !memcmp(channel_names[i].name, name, name_len))
+            return (int64_t)1 << i;
+
+    errno = 0;
+    i = strtol(name, &end, 10);
+
+    if (!errno && (end + 1 - name == name_len && *end  == 'c'))
+        return av_get_default_channel_layout(i);
+
+    errno = 0;
+    layout = strtoll(name, &end, 0);
+    if (!errno && end - name == name_len)
+        return FFMAX(layout, 0);
+    return 0;
+}
+
+uint64_t av_get_channel_layout(const char *name)
+{
+    const char *n, *e;
+    const char *name_end = name + strlen(name);
+    int64_t layout = 0, layout_single;
+
+    for (n = name; n < name_end; n = e + 1) {
+        for (e = n; e < name_end && *e != '+' && *e != '|'; e++);
+        layout_single = get_channel_layout_single(n, e - n);
+        if (!layout_single)
+            return 0;
+        layout |= layout_single;
+    }
+    return layout;
+}
+
+int av_get_extended_channel_layout(const char *name, uint64_t* channel_layout, int* nb_channels)
+{
+    int nb = 0;
+    char *end;
+    uint64_t layout = av_get_channel_layout(name);
+
+    if (layout) {
+        *channel_layout = layout;
+        *nb_channels = av_get_channel_layout_nb_channels(layout);
+        return 0;
+    }
+
+    nb = strtol(name, &end, 10);
+    if (!errno && *end  == 'C' && *(end + 1) == '\0' && nb > 0 && nb < 64) {
+        *channel_layout = 0;
+        *nb_channels = nb;
+        return 0;
+    }
+
+    return AVERROR(EINVAL);
+}
+
+void av_bprint_channel_layout(struct AVBPrint *bp,
+                              int nb_channels, uint64_t channel_layout)
+{
+    int i;
+
+    if (nb_channels <= 0)
+        nb_channels = av_get_channel_layout_nb_channels(channel_layout);
+
+    for (i = 0; i < FF_ARRAY_ELEMS(channel_layout_map); i++)
+        if (nb_channels    == channel_layout_map[i].nb_channels &&
+            channel_layout == channel_layout_map[i].layout) {
+            av_bprintf(bp, "%s", channel_layout_map[i].name);
+            return;
+        }
+
+    av_bprintf(bp, "%d channels", nb_channels);
+    if (channel_layout) {
+        int i, ch;
+        av_bprintf(bp, " (");
+        for (i = 0, ch = 0; i < 64; i++) {
+            if ((channel_layout & (UINT64_C(1) << i))) {
+                const char *name = get_channel_name(i);
+                if (name) {
+                    if (ch > 0)
+                        av_bprintf(bp, "+");
+                    av_bprintf(bp, "%s", name);
+                }
+                ch++;
+            }
+        }
+        av_bprintf(bp, ")");
+    }
+}
+
+void av_get_channel_layout_string(char *buf, int buf_size,
+                                  int nb_channels, uint64_t channel_layout)
+{
+    AVBPrint bp;
+
+    av_bprint_init_for_buffer(&bp, buf, buf_size);
+    av_bprint_channel_layout(&bp, nb_channels, channel_layout);
+}
+
+int av_get_channel_layout_nb_channels(uint64_t channel_layout)
+{
+    return av_popcount64(channel_layout);
+}
+
+int64_t av_get_default_channel_layout(int nb_channels) {
+    int i;
+    for (i = 0; i < FF_ARRAY_ELEMS(channel_layout_map); i++)
+        if (nb_channels == channel_layout_map[i].nb_channels)
+            return channel_layout_map[i].layout;
+    return 0;
+}
+
+int av_get_channel_layout_channel_index(uint64_t channel_layout,
+                                        uint64_t channel)
+{
+    if (!(channel_layout & channel) ||
+        av_get_channel_layout_nb_channels(channel) != 1)
+        return AVERROR(EINVAL);
+    channel_layout &= channel - 1;
+    return av_get_channel_layout_nb_channels(channel_layout);
+}
+
+const char *av_get_channel_name(uint64_t channel)
+{
+    int i;
+    if (av_get_channel_layout_nb_channels(channel) != 1)
+        return NULL;
+    for (i = 0; i < 64; i++)
+        if ((1ULL<<i) & channel)
+            return get_channel_name(i);
+    return NULL;
+}
+
+const char *av_get_channel_description(uint64_t channel)
+{
+    int i;
+    if (av_get_channel_layout_nb_channels(channel) != 1)
+        return NULL;
+    for (i = 0; i < FF_ARRAY_ELEMS(channel_names); i++)
+        if ((1ULL<<i) & channel)
+            return channel_names[i].description;
+    return NULL;
+}
+
+uint64_t av_channel_layout_extract_channel(uint64_t channel_layout, int index)
+{
+    int i;
+
+    if (av_get_channel_layout_nb_channels(channel_layout) <= index)
+        return 0;
+
+    for (i = 0; i < 64; i++) {
+        if ((1ULL << i) & channel_layout && !index--)
+            return 1ULL << i;
+    }
+    return 0;
+}
+
+int av_get_standard_channel_layout(unsigned index, uint64_t *layout,
+                                   const char **name)
+{
+    if (index >= FF_ARRAY_ELEMS(channel_layout_map))
+        return AVERROR_EOF;
+    if (layout) *layout = channel_layout_map[index].layout;
+    if (name)   *name   = channel_layout_map[index].name;
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/channel_layout.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/channel_layout.h
new file mode 100644
index 000000000..50bb8f03c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/channel_layout.h
@@ -0,0 +1,232 @@
+/*
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2008 Peter Ross
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_CHANNEL_LAYOUT_H
+#define AVUTIL_CHANNEL_LAYOUT_H
+
+#include <stdint.h>
+
+/**
+ * @file
+ * audio channel layout utility functions
+ */
+
+/**
+ * @addtogroup lavu_audio
+ * @{
+ */
+
+/**
+ * @defgroup channel_masks Audio channel masks
+ *
+ * A channel layout is a 64-bits integer with a bit set for every channel.
+ * The number of bits set must be equal to the number of channels.
+ * The value 0 means that the channel layout is not known.
+ * @note this data structure is not powerful enough to handle channels
+ * combinations that have the same channel multiple times, such as
+ * dual-mono.
+ *
+ * @{
+ */
+#define AV_CH_FRONT_LEFT             0x00000001
+#define AV_CH_FRONT_RIGHT            0x00000002
+#define AV_CH_FRONT_CENTER           0x00000004
+#define AV_CH_LOW_FREQUENCY          0x00000008
+#define AV_CH_BACK_LEFT              0x00000010
+#define AV_CH_BACK_RIGHT             0x00000020
+#define AV_CH_FRONT_LEFT_OF_CENTER   0x00000040
+#define AV_CH_FRONT_RIGHT_OF_CENTER  0x00000080
+#define AV_CH_BACK_CENTER            0x00000100
+#define AV_CH_SIDE_LEFT              0x00000200
+#define AV_CH_SIDE_RIGHT             0x00000400
+#define AV_CH_TOP_CENTER             0x00000800
+#define AV_CH_TOP_FRONT_LEFT         0x00001000
+#define AV_CH_TOP_FRONT_CENTER       0x00002000
+#define AV_CH_TOP_FRONT_RIGHT        0x00004000
+#define AV_CH_TOP_BACK_LEFT          0x00008000
+#define AV_CH_TOP_BACK_CENTER        0x00010000
+#define AV_CH_TOP_BACK_RIGHT         0x00020000
+#define AV_CH_STEREO_LEFT            0x20000000  ///< Stereo downmix.
+#define AV_CH_STEREO_RIGHT           0x40000000  ///< See AV_CH_STEREO_LEFT.
+#define AV_CH_WIDE_LEFT              0x0000000080000000ULL
+#define AV_CH_WIDE_RIGHT             0x0000000100000000ULL
+#define AV_CH_SURROUND_DIRECT_LEFT   0x0000000200000000ULL
+#define AV_CH_SURROUND_DIRECT_RIGHT  0x0000000400000000ULL
+#define AV_CH_LOW_FREQUENCY_2        0x0000000800000000ULL
+
+/** Channel mask value used for AVCodecContext.request_channel_layout
+    to indicate that the user requests the channel order of the decoder output
+    to be the native codec channel order. */
+#define AV_CH_LAYOUT_NATIVE          0x8000000000000000ULL
+
+/**
+ * @}
+ * @defgroup channel_mask_c Audio channel layouts
+ * @{
+ * */
+#define AV_CH_LAYOUT_MONO              (AV_CH_FRONT_CENTER)
+#define AV_CH_LAYOUT_STEREO            (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT)
+#define AV_CH_LAYOUT_2POINT1           (AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_2_1               (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_SURROUND          (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER)
+#define AV_CH_LAYOUT_3POINT1           (AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_4POINT0           (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_4POINT1           (AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_2_2               (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
+#define AV_CH_LAYOUT_QUAD              (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_5POINT0           (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
+#define AV_CH_LAYOUT_5POINT1           (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_5POINT0_BACK      (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_5POINT1_BACK      (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_6POINT0           (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_6POINT0_FRONT     (AV_CH_LAYOUT_2_2|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
+#define AV_CH_LAYOUT_HEXAGONAL         (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_6POINT1           (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_6POINT1_BACK      (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_6POINT1_FRONT     (AV_CH_LAYOUT_6POINT0_FRONT|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_7POINT0           (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_7POINT0_FRONT     (AV_CH_LAYOUT_5POINT0|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
+#define AV_CH_LAYOUT_7POINT1           (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_7POINT1_WIDE      (AV_CH_LAYOUT_5POINT1|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
+#define AV_CH_LAYOUT_7POINT1_WIDE_BACK (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
+#define AV_CH_LAYOUT_OCTAGONAL         (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_CENTER|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_HEXADECAGONAL     (AV_CH_LAYOUT_OCTAGONAL|AV_CH_WIDE_LEFT|AV_CH_WIDE_RIGHT|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT|AV_CH_TOP_BACK_CENTER|AV_CH_TOP_FRONT_CENTER|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT)
+#define AV_CH_LAYOUT_STEREO_DOWNMIX    (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT)
+
+enum AVMatrixEncoding {
+    AV_MATRIX_ENCODING_NONE,
+    AV_MATRIX_ENCODING_DOLBY,
+    AV_MATRIX_ENCODING_DPLII,
+    AV_MATRIX_ENCODING_DPLIIX,
+    AV_MATRIX_ENCODING_DPLIIZ,
+    AV_MATRIX_ENCODING_DOLBYEX,
+    AV_MATRIX_ENCODING_DOLBYHEADPHONE,
+    AV_MATRIX_ENCODING_NB
+};
+
+/**
+ * Return a channel layout id that matches name, or 0 if no match is found.
+ *
+ * name can be one or several of the following notations,
+ * separated by '+' or '|':
+ * - the name of an usual channel layout (mono, stereo, 4.0, quad, 5.0,
+ *   5.0(side), 5.1, 5.1(side), 7.1, 7.1(wide), downmix);
+ * - the name of a single channel (FL, FR, FC, LFE, BL, BR, FLC, FRC, BC,
+ *   SL, SR, TC, TFL, TFC, TFR, TBL, TBC, TBR, DL, DR);
+ * - a number of channels, in decimal, followed by 'c', yielding
+ *   the default channel layout for that number of channels (@see
+ *   av_get_default_channel_layout);
+ * - a channel layout mask, in hexadecimal starting with "0x" (see the
+ *   AV_CH_* macros).
+ *
+ * Example: "stereo+FC" = "2c+FC" = "2c+1c" = "0x7"
+ */
+uint64_t av_get_channel_layout(const char *name);
+
+/**
+ * Return a channel layout and the number of channels based on the specified name.
+ *
+ * This function is similar to (@see av_get_channel_layout), but can also parse
+ * unknown channel layout specifications.
+ *
+ * @param[in]  name             channel layout specification string
+ * @param[out] channel_layout   parsed channel layout (0 if unknown)
+ * @param[out] nb_channels      number of channels
+ *
+ * @return 0 on success, AVERROR(EINVAL) if the parsing fails.
+ */
+int av_get_extended_channel_layout(const char *name, uint64_t* channel_layout, int* nb_channels);
+
+/**
+ * Return a description of a channel layout.
+ * If nb_channels is <= 0, it is guessed from the channel_layout.
+ *
+ * @param buf put here the string containing the channel layout
+ * @param buf_size size in bytes of the buffer
+ */
+void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout);
+
+struct AVBPrint;
+/**
+ * Append a description of a channel layout to a bprint buffer.
+ */
+void av_bprint_channel_layout(struct AVBPrint *bp, int nb_channels, uint64_t channel_layout);
+
+/**
+ * Return the number of channels in the channel layout.
+ */
+int av_get_channel_layout_nb_channels(uint64_t channel_layout);
+
+/**
+ * Return default channel layout for a given number of channels.
+ */
+int64_t av_get_default_channel_layout(int nb_channels);
+
+/**
+ * Get the index of a channel in channel_layout.
+ *
+ * @param channel a channel layout describing exactly one channel which must be
+ *                present in channel_layout.
+ *
+ * @return index of channel in channel_layout on success, a negative AVERROR
+ *         on error.
+ */
+int av_get_channel_layout_channel_index(uint64_t channel_layout,
+                                        uint64_t channel);
+
+/**
+ * Get the channel with the given index in channel_layout.
+ */
+uint64_t av_channel_layout_extract_channel(uint64_t channel_layout, int index);
+
+/**
+ * Get the name of a given channel.
+ *
+ * @return channel name on success, NULL on error.
+ */
+const char *av_get_channel_name(uint64_t channel);
+
+/**
+ * Get the description of a given channel.
+ *
+ * @param channel  a channel layout with a single channel
+ * @return  channel description on success, NULL on error
+ */
+const char *av_get_channel_description(uint64_t channel);
+
+/**
+ * Get the value and name of a standard channel layout.
+ *
+ * @param[in]  index   index in an internal list, starting at 0
+ * @param[out] layout  channel layout mask
+ * @param[out] name    name of the layout
+ * @return  0  if the layout exists,
+ *          <0 if index is beyond the limits
+ */
+int av_get_standard_channel_layout(unsigned index, uint64_t *layout,
+                                   const char **name);
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* AVUTIL_CHANNEL_LAYOUT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/color_utils.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/color_utils.c
new file mode 100644
index 000000000..eb8bc7b5f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/color_utils.c
@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2015 Kevin Wheatley <kevin.j.wheatley@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+#include <math.h>
+
+#include "common.h"
+#include "libavutil/color_utils.h"
+#include "libavutil/pixfmt.h"
+
+double avpriv_get_gamma_from_trc(enum AVColorTransferCharacteristic trc)
+{
+    double gamma;
+    switch (trc) {
+        case AVCOL_TRC_BT709:
+        case AVCOL_TRC_SMPTE170M:
+        case AVCOL_TRC_SMPTE240M:
+        case AVCOL_TRC_BT1361_ECG:
+        case AVCOL_TRC_BT2020_10:
+        case AVCOL_TRC_BT2020_12:
+            /* these share a segmented TRC, but gamma 1.961 is a close
+              approximation, and also more correct for decoding content */
+            gamma = 1.961;
+            break;
+        case AVCOL_TRC_GAMMA22:
+        case AVCOL_TRC_IEC61966_2_1:
+            gamma = 2.2;
+            break;
+        case AVCOL_TRC_GAMMA28:
+            gamma = 2.8;
+            break;
+        case AVCOL_TRC_LINEAR:
+            gamma = 1.0;
+            break;
+        default:
+            gamma = 0.0; // Unknown value representation
+    }
+    return gamma;
+}
+
+#define BT709_alpha 1.099296826809442
+#define BT709_beta 0.018053968510807
+
+static double avpriv_trc_bt709(double Lc)
+{
+    const double a = BT709_alpha;
+    const double b = BT709_beta;
+
+    return (0.0 > Lc) ? 0.0
+         : (  b > Lc) ? 4.500 * Lc
+         :              a * pow(Lc, 0.45) - (a - 1.0);
+}
+
+static double avpriv_trc_gamma22(double Lc)
+{
+    return (0.0 > Lc) ? 0.0 : pow(Lc, 1.0/ 2.2);
+}
+
+static double avpriv_trc_gamma28(double Lc)
+{
+    return (0.0 > Lc) ? 0.0 : pow(Lc, 1.0/ 2.8);
+}
+
+static double avpriv_trc_smpte240M(double Lc)
+{
+    const double a = 1.1115;
+    const double b = 0.0228;
+
+    return (0.0 > Lc) ? 0.0
+         : (  b > Lc) ? 4.000 * Lc
+         :              a * pow(Lc, 0.45) - (a - 1.0);
+}
+
+static double avpriv_trc_linear(double Lc)
+{
+    return Lc;
+}
+
+static double avpriv_trc_log(double Lc)
+{
+    return (0.01 > Lc) ? 0.0 : 1.0 + log10(Lc) / 2.0;
+}
+
+static double avpriv_trc_log_sqrt(double Lc)
+{
+    // sqrt(10) / 1000
+    return (0.00316227766 > Lc) ? 0.0 : 1.0 + log10(Lc) / 2.5;
+}
+
+static double avpriv_trc_iec61966_2_4(double Lc)
+{
+    const double a = BT709_alpha;
+    const double b = BT709_beta;
+
+    return (-b >= Lc) ? -a * pow(-Lc, 0.45) + (a - 1.0)
+         : ( b >  Lc) ? 4.500 * Lc
+         :               a * pow( Lc, 0.45) - (a - 1.0);
+}
+
+static double avpriv_trc_bt1361(double Lc)
+{
+    const double a = BT709_alpha;
+    const double b = BT709_beta;
+
+    return (-0.0045 >= Lc) ? -(a * pow(-4.0 * Lc, 0.45) + (a - 1.0)) / 4.0
+         : ( b >  Lc) ? 4.500 * Lc
+         :               a * pow( Lc, 0.45) - (a - 1.0);
+}
+
+static double avpriv_trc_iec61966_2_1(double Lc)
+{
+    const double a = 1.055;
+    const double b = 0.0031308;
+
+    return (0.0 > Lc) ? 0.0
+         : (  b > Lc) ? 12.92 * Lc
+         :              a * pow(Lc, 1.0  / 2.4) - (a - 1.0);
+}
+
+static double avpriv_trc_smpte_st2084(double Lc)
+{
+    const double c1 =         3424.0 / 4096.0; // c3-c2 + 1
+    const double c2 =  32.0 * 2413.0 / 4096.0;
+    const double c3 =  32.0 * 2392.0 / 4096.0;
+    const double m  = 128.0 * 2523.0 / 4096.0;
+    const double n  =  0.25 * 2610.0 / 4096.0;
+    const double L  = Lc / 10000.0;
+    const double Ln = pow(L, n);
+
+    return (0.0 > Lc) ? 0.0
+         :              pow((c1 + c2 * Ln) / (1.0 + c3 * Ln), m);
+
+}
+
+static double avpriv_trc_smpte_st428_1(double Lc)
+{
+    return (0.0 > Lc) ? 0.0
+         :              pow(48.0 * Lc / 52.37, 1.0 / 2.6);
+}
+
+
+static double avpriv_trc_arib_std_b67(double Lc) {
+    // The function uses the definition from HEVC, which assumes that the peak
+    // white is input level = 1. (this is equivalent to scaling E = Lc * 12 and
+    // using the definition from the ARIB STD-B67 spec)
+    const double a = 0.17883277;
+    const double b = 0.28466892;
+    const double c = 0.55991073;
+    return (0.0 > Lc) ? 0.0 :
+        (Lc <= 1.0 / 12.0 ? sqrt(3.0 * Lc) : a * log(12.0 * Lc - b) + c);
+}
+
+avpriv_trc_function avpriv_get_trc_function_from_trc(enum AVColorTransferCharacteristic trc)
+{
+    avpriv_trc_function func = NULL;
+    switch (trc) {
+        case AVCOL_TRC_BT709:
+        case AVCOL_TRC_SMPTE170M:
+        case AVCOL_TRC_BT2020_10:
+        case AVCOL_TRC_BT2020_12:
+            func = avpriv_trc_bt709;
+            break;
+
+        case AVCOL_TRC_GAMMA22:
+            func = avpriv_trc_gamma22;
+            break;
+        case AVCOL_TRC_GAMMA28:
+            func = avpriv_trc_gamma28;
+            break;
+
+        case AVCOL_TRC_SMPTE240M:
+            func = avpriv_trc_smpte240M;
+            break;
+
+        case AVCOL_TRC_LINEAR:
+            func = avpriv_trc_linear;
+            break;
+
+        case AVCOL_TRC_LOG:
+            func = avpriv_trc_log;
+            break;
+
+        case AVCOL_TRC_LOG_SQRT:
+            func = avpriv_trc_log_sqrt;
+            break;
+
+        case AVCOL_TRC_IEC61966_2_4:
+            func = avpriv_trc_iec61966_2_4;
+            break;
+
+        case AVCOL_TRC_BT1361_ECG:
+            func = avpriv_trc_bt1361;
+            break;
+
+        case AVCOL_TRC_IEC61966_2_1:
+            func = avpriv_trc_iec61966_2_1;
+            break;
+
+        case AVCOL_TRC_SMPTEST2084:
+            func = avpriv_trc_smpte_st2084;
+            break;
+
+        case AVCOL_TRC_SMPTEST428_1:
+            func = avpriv_trc_smpte_st428_1;
+            break;
+
+        case AVCOL_TRC_ARIB_STD_B67:
+            func = avpriv_trc_arib_std_b67;
+            break;
+
+        case AVCOL_TRC_RESERVED0:
+        case AVCOL_TRC_UNSPECIFIED:
+        case AVCOL_TRC_RESERVED:
+        default:
+            break;
+    }
+    return func;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/color_utils.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/color_utils.h
new file mode 100644
index 000000000..952900645
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/color_utils.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2015 Kevin Wheatley <kevin.j.wheatley@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_COLOR_UTILS_H
+#define AVUTIL_COLOR_UTILS_H
+
+
+#include "libavutil/pixfmt.h"
+
+/**
+ * Determine a suitable 'gamma' value to match the supplied
+ * AVColorTransferCharacteristic.
+ *
+ * See Apple Technical Note TN2257 (https://developer.apple.com/library/mac/technotes/tn2257/_index.html)
+ *
+ * @return Will return an approximation to the simple gamma function matching
+ *         the supplied Transfer Characteristic, Will return 0.0 for any
+ *         we cannot reasonably match against.
+ */
+double avpriv_get_gamma_from_trc(enum AVColorTransferCharacteristic trc);
+
+
+typedef double (*avpriv_trc_function)(double);
+
+/**
+ * Determine the function needed to apply the given
+ * AVColorTransferCharacteristic to linear input.
+ *
+ * The function returned should expect a nominal domain and range of [0.0-1.0]
+ * values outside of this range maybe valid depending on the chosen
+ * characteristic function.
+ *
+ * @return Will return pointer to the function matching the
+ *         supplied Transfer Characteristic. If unspecified will
+ *         return NULL:
+ */
+avpriv_trc_function avpriv_get_trc_function_from_trc(enum AVColorTransferCharacteristic trc);
+
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/colorspace.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/colorspace.h
new file mode 100644
index 000000000..ef6f6107d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/colorspace.h
@@ -0,0 +1,150 @@
+/*
+ * Colorspace conversion defines
+ * Copyright (c) 2001, 2002, 2003 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Various defines for YUV<->RGB conversion
+ */
+
+#ifndef AVUTIL_COLORSPACE_H
+#define AVUTIL_COLORSPACE_H
+
+#define SCALEBITS 10
+#define ONE_HALF  (1 << (SCALEBITS - 1))
+#define FIX(x)    ((int) ((x) * (1<<SCALEBITS) + 0.5))
+
+#define YUV_TO_RGB1_CCIR(cb1, cr1)\
+{\
+    cb = (cb1) - 128;\
+    cr = (cr1) - 128;\
+    r_add = FIX(1.40200*255.0/224.0) * cr + ONE_HALF;\
+    g_add = - FIX(0.34414*255.0/224.0) * cb - FIX(0.71414*255.0/224.0) * cr + \
+            ONE_HALF;\
+    b_add = FIX(1.77200*255.0/224.0) * cb + ONE_HALF;\
+}
+
+#define YUV_TO_RGB1_CCIR_BT709(cb1, cr1)                      \
+    {                                                         \
+        cb    = (cb1) - 128;                                  \
+        cr    = (cr1) - 128;                                  \
+        r_add = ONE_HALF + FIX(1.5747 * 255.0 / 224.0) * cr;  \
+        g_add = ONE_HALF - FIX(0.1873 * 255.0 / 224.0) * cb - \
+                           FIX(0.4682 * 255.0 / 224.0) * cr;  \
+        b_add = ONE_HALF + FIX(1.8556 * 255.0 / 224.0) * cb;  \
+    }
+
+// To be used for the BT709 variant as well
+#define YUV_TO_RGB2_CCIR(r, g, b, y1)\
+{\
+    y = ((y1) - 16) * FIX(255.0/219.0);\
+    r = cm[(y + r_add) >> SCALEBITS];\
+    g = cm[(y + g_add) >> SCALEBITS];\
+    b = cm[(y + b_add) >> SCALEBITS];\
+}
+
+#define YUV_TO_RGB1(cb1, cr1)\
+{\
+    cb = (cb1) - 128;\
+    cr = (cr1) - 128;\
+    r_add = FIX(1.40200) * cr + ONE_HALF;\
+    g_add = - FIX(0.34414) * cb - FIX(0.71414) * cr + ONE_HALF;\
+    b_add = FIX(1.77200) * cb + ONE_HALF;\
+}
+
+#define YUV_TO_RGB2(r, g, b, y1)\
+{\
+    y = (y1) << SCALEBITS;\
+    r = cm[(y + r_add) >> SCALEBITS];\
+    g = cm[(y + g_add) >> SCALEBITS];\
+    b = cm[(y + b_add) >> SCALEBITS];\
+}
+
+#define Y_CCIR_TO_JPEG(y)\
+ cm[((y) * FIX(255.0/219.0) + (ONE_HALF - 16 * FIX(255.0/219.0))) >> SCALEBITS]
+
+#define Y_JPEG_TO_CCIR(y)\
+ (((y) * FIX(219.0/255.0) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
+
+#define C_CCIR_TO_JPEG(y)\
+ cm[(((y) - 128) * FIX(127.0/112.0) + (ONE_HALF + (128 << SCALEBITS))) >> SCALEBITS]
+
+/* NOTE: the clamp is really necessary! */
+static inline int C_JPEG_TO_CCIR(int y) {
+    y = (((y - 128) * FIX(112.0/127.0) + (ONE_HALF + (128 << SCALEBITS))) >> SCALEBITS);
+    if (y < 16)
+        y = 16;
+    return y;
+}
+
+
+#define RGB_TO_Y_CCIR(r, g, b) \
+((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
+  FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
+
+#define RGB_TO_U_CCIR(r1, g1, b1, shift)\
+(((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 +         \
+     FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
+
+#define RGB_TO_V_CCIR(r1, g1, b1, shift)\
+(((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 -           \
+   FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
+
+#define RGB_TO_Y_JPEG(r, g, b) \
+(FFMIN((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
+  FIX(0.11400) * (b) + (ONE_HALF)) >> SCALEBITS, 255))
+
+#define RGB_TO_U_JPEG(r1, g1, b1)\
+(((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
+     FIX(0.50000) * b1 + (ONE_HALF) - 1) >> (SCALEBITS)) + 128)
+
+#define RGB_TO_V_JPEG(r1, g1, b1)\
+(((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
+   FIX(0.08131) * b1 + (ONE_HALF) - 1) >> (SCALEBITS)) + 128)
+
+// Conversion macros for 8-bit RGB to YUV
+// Derived from ITU-R BT.709-6 (06/2015) Item 3.5
+// https://www.itu.int/rec/R-REC-BT.709-6-201506-I/en
+
+#define RGB_TO_Y_BT709(r, g, b) \
+((FIX(0.21260*219.0/255.0) * (r) + FIX(0.71520*219.0/255.0) * (g) + \
+  FIX(0.07220*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
+
+#define RGB_TO_U_BT709(r1, g1, b1, shift)\
+(((- FIX(0.11457*224.0/255.0) * r1 - FIX(0.38543*224.0/255.0) * g1 +         \
+     FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
+
+#define RGB_TO_V_BT709(r1, g1, b1, shift)\
+(((FIX(0.50000*224.0/255.0) * r1 - FIX(0.45415*224.0/255.0) * g1 -           \
+   FIX(0.04585*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
+
+#define RGB_TO_Y_BT709_FULL(r, g, b) \
+(FFMIN((FIX(0.21260) * (r) + FIX(0.71520) * (g) + \
+  FIX(0.07220) * (b) + (ONE_HALF)) >> SCALEBITS, 255))
+
+#define RGB_TO_U_BT709_FULL(r1, g1, b1)\
+(((- FIX(0.11457) * r1 - FIX(0.38543) * g1 + \
+     FIX(0.50000) * b1 + (ONE_HALF) - 1) >> (SCALEBITS)) + 128)
+
+#define RGB_TO_V_BT709_FULL(r1, g1, b1)\
+(((FIX(0.50000) * r1 - FIX(0.45415) * g1 - \
+   FIX(0.04585) * b1 + (ONE_HALF) - 1) >> (SCALEBITS)) + 128)
+
+#endif /* AVUTIL_COLORSPACE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/common.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/common.h
new file mode 100644
index 000000000..8db029117
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/common.h
@@ -0,0 +1,560 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * common internal and external API header
+ */
+
+#ifndef AVUTIL_COMMON_H
+#define AVUTIL_COMMON_H
+
+#if defined(__cplusplus) && !defined(__STDC_CONSTANT_MACROS) && !defined(UINT64_C)
+#error missing -D__STDC_CONSTANT_MACROS / #define __STDC_CONSTANT_MACROS
+#endif
+
+#include <errno.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <math.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "attributes.h"
+#include "macros.h"
+#include "version.h"
+#include "libavutil/avconfig.h"
+
+#if AV_HAVE_BIGENDIAN
+#   define AV_NE(be, le) (be)
+#else
+#   define AV_NE(be, le) (le)
+#endif
+
+//rounded division & shift
+#define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
+/* assume b>0 */
+#define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
+/* Fast a/(1<<b) rounded toward +inf. Assume a>=0 and b>=0 */
+#define AV_CEIL_RSHIFT(a,b) (!av_builtin_constant_p(b) ? -((-(a)) >> (b)) \
+                                                       : ((a) + (1<<(b)) - 1) >> (b))
+/* Backwards compat. */
+#define FF_CEIL_RSHIFT AV_CEIL_RSHIFT
+
+#define FFUDIV(a,b) (((a)>0 ?(a):(a)-(b)+1) / (b))
+#define FFUMOD(a,b) ((a)-(b)*FFUDIV(a,b))
+
+/**
+ * Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they
+ * are not representable as absolute values of their type. This is the same
+ * as with *abs()
+ * @see FFNABS()
+ */
+#define FFABS(a) ((a) >= 0 ? (a) : (-(a)))
+#define FFSIGN(a) ((a) > 0 ? 1 : -1)
+
+/**
+ * Negative Absolute value.
+ * this works for all integers of all types.
+ * As with many macros, this evaluates its argument twice, it thus must not have
+ * a sideeffect, that is FFNABS(x++) has undefined behavior.
+ */
+#define FFNABS(a) ((a) <= 0 ? (a) : (-(a)))
+
+/**
+ * Comparator.
+ * For two numerical expressions x and y, gives 1 if x > y, -1 if x < y, and 0
+ * if x == y. This is useful for instance in a qsort comparator callback.
+ * Furthermore, compilers are able to optimize this to branchless code, and
+ * there is no risk of overflow with signed types.
+ * As with many macros, this evaluates its argument multiple times, it thus
+ * must not have a side-effect.
+ */
+#define FFDIFFSIGN(x,y) (((x)>(y)) - ((x)<(y)))
+
+#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
+#define FFMAX3(a,b,c) FFMAX(FFMAX(a,b),c)
+#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
+#define FFMIN3(a,b,c) FFMIN(FFMIN(a,b),c)
+
+#define FFSWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0)
+#define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
+
+/* misc math functions */
+
+#ifdef HAVE_AV_CONFIG_H
+#   include "config.h"
+#   include "intmath.h"
+#endif
+
+/* Pull in unguarded fallback defines at the end of this file. */
+#include "common.h"
+
+#ifndef av_log2
+av_const int av_log2(unsigned v);
+#endif
+
+#ifndef av_log2_16bit
+av_const int av_log2_16bit(unsigned v);
+#endif
+
+/**
+ * Clip a signed integer value into the amin-amax range.
+ * @param a value to clip
+ * @param amin minimum value of the clip range
+ * @param amax maximum value of the clip range
+ * @return clipped value
+ */
+static av_always_inline av_const int av_clip_c(int a, int amin, int amax)
+{
+#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+    if (amin > amax) abort();
+#endif
+    if      (a < amin) return amin;
+    else if (a > amax) return amax;
+    else               return a;
+}
+
+/**
+ * Clip a signed 64bit integer value into the amin-amax range.
+ * @param a value to clip
+ * @param amin minimum value of the clip range
+ * @param amax maximum value of the clip range
+ * @return clipped value
+ */
+static av_always_inline av_const int64_t av_clip64_c(int64_t a, int64_t amin, int64_t amax)
+{
+#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+    if (amin > amax) abort();
+#endif
+    if      (a < amin) return amin;
+    else if (a > amax) return amax;
+    else               return a;
+}
+
+/**
+ * Clip a signed integer value into the 0-255 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const uint8_t av_clip_uint8_c(int a)
+{
+    if (a&(~0xFF)) return (~a)>>31;
+    else           return a;
+}
+
+/**
+ * Clip a signed integer value into the -128,127 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const int8_t av_clip_int8_c(int a)
+{
+    if ((a+0x80U) & ~0xFF) return (a>>31) ^ 0x7F;
+    else                  return a;
+}
+
+/**
+ * Clip a signed integer value into the 0-65535 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const uint16_t av_clip_uint16_c(int a)
+{
+    if (a&(~0xFFFF)) return (~a)>>31;
+    else             return a;
+}
+
+/**
+ * Clip a signed integer value into the -32768,32767 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const int16_t av_clip_int16_c(int a)
+{
+    if ((a+0x8000U) & ~0xFFFF) return (a>>31) ^ 0x7FFF;
+    else                      return a;
+}
+
+/**
+ * Clip a signed 64-bit integer value into the -2147483648,2147483647 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const int32_t av_clipl_int32_c(int64_t a)
+{
+    if ((a+0x80000000u) & ~UINT64_C(0xFFFFFFFF)) return (int32_t)((a>>63) ^ 0x7FFFFFFF);
+    else                                         return (int32_t)a;
+}
+
+/**
+ * Clip a signed integer into the -(2^p),(2^p-1) range.
+ * @param  a value to clip
+ * @param  p bit position to clip at
+ * @return clipped value
+ */
+static av_always_inline av_const int av_clip_intp2_c(int a, int p)
+{
+    if (((unsigned)a + (1 << p)) & ~((2 << p) - 1))
+        return (a >> 31) ^ ((1 << p) - 1);
+    else
+        return a;
+}
+
+/**
+ * Clip a signed integer to an unsigned power of two range.
+ * @param  a value to clip
+ * @param  p bit position to clip at
+ * @return clipped value
+ */
+static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
+{
+    if (a & ~((1<<p) - 1)) return (~a) >> 31 & ((1<<p) - 1);
+    else                   return  a;
+}
+
+/**
+ * Clear high bits from an unsigned integer starting with specific bit position
+ * @param  a value to clip
+ * @param  p bit position to clip at
+ * @return clipped value
+ */
+static av_always_inline av_const unsigned av_mod_uintp2_c(unsigned a, unsigned p)
+{
+    return a & ((1 << p) - 1);
+}
+
+/**
+ * Add two signed 32-bit values with saturation.
+ *
+ * @param  a one value
+ * @param  b another value
+ * @return sum with signed saturation
+ */
+static av_always_inline int av_sat_add32_c(int a, int b)
+{
+    return av_clipl_int32((int64_t)a + b);
+}
+
+/**
+ * Add a doubled value to another value with saturation at both stages.
+ *
+ * @param  a first value
+ * @param  b value doubled and added to a
+ * @return sum sat(a + sat(2*b)) with signed saturation
+ */
+static av_always_inline int av_sat_dadd32_c(int a, int b)
+{
+    return av_sat_add32(a, av_sat_add32(b, b));
+}
+
+/**
+ * Subtract two signed 32-bit values with saturation.
+ *
+ * @param  a one value
+ * @param  b another value
+ * @return difference with signed saturation
+ */
+static av_always_inline int av_sat_sub32_c(int a, int b)
+{
+    return av_clipl_int32((int64_t)a - b);
+}
+
+/**
+ * Subtract a doubled value from another value with saturation at both stages.
+ *
+ * @param  a first value
+ * @param  b value doubled and subtracted from a
+ * @return difference sat(a - sat(2*b)) with signed saturation
+ */
+static av_always_inline int av_sat_dsub32_c(int a, int b)
+{
+    return av_sat_sub32(a, av_sat_add32(b, b));
+}
+
+/**
+ * Clip a float value into the amin-amax range.
+ * @param a value to clip
+ * @param amin minimum value of the clip range
+ * @param amax maximum value of the clip range
+ * @return clipped value
+ */
+static av_always_inline av_const float av_clipf_c(float a, float amin, float amax)
+{
+#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+    if (amin > amax) abort();
+#endif
+    if      (a < amin) return amin;
+    else if (a > amax) return amax;
+    else               return a;
+}
+
+/**
+ * Clip a double value into the amin-amax range.
+ * @param a value to clip
+ * @param amin minimum value of the clip range
+ * @param amax maximum value of the clip range
+ * @return clipped value
+ */
+static av_always_inline av_const double av_clipd_c(double a, double amin, double amax)
+{
+#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+    if (amin > amax) abort();
+#endif
+    if      (a < amin) return amin;
+    else if (a > amax) return amax;
+    else               return a;
+}
+
+/** Compute ceil(log2(x)).
+ * @param x value used to compute ceil(log2(x))
+ * @return computed ceiling of log2(x)
+ */
+static av_always_inline av_const int av_ceil_log2_c(int x)
+{
+    return av_log2((x - 1) << 1);
+}
+
+/**
+ * Count number of bits set to one in x
+ * @param x value to count bits of
+ * @return the number of bits set to one in x
+ */
+static av_always_inline av_const int av_popcount_c(uint32_t x)
+{
+    x -= (x >> 1) & 0x55555555;
+    x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
+    x = (x + (x >> 4)) & 0x0F0F0F0F;
+    x += x >> 8;
+    return (x + (x >> 16)) & 0x3F;
+}
+
+/**
+ * Count number of bits set to one in x
+ * @param x value to count bits of
+ * @return the number of bits set to one in x
+ */
+static av_always_inline av_const int av_popcount64_c(uint64_t x)
+{
+    return av_popcount((uint32_t)x) + av_popcount((uint32_t)(x >> 32));
+}
+
+static av_always_inline av_const int av_parity_c(uint32_t v)
+{
+    return av_popcount(v) & 1;
+}
+
+#define MKTAG(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((unsigned)(d) << 24))
+#define MKBETAG(a,b,c,d) ((d) | ((c) << 8) | ((b) << 16) | ((unsigned)(a) << 24))
+
+/**
+ * Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form.
+ *
+ * @param val      Output value, must be an lvalue of type uint32_t.
+ * @param GET_BYTE Expression reading one byte from the input.
+ *                 Evaluated up to 7 times (4 for the currently
+ *                 assigned Unicode range).  With a memory buffer
+ *                 input, this could be *ptr++.
+ * @param ERROR    Expression to be evaluated on invalid input,
+ *                 typically a goto statement.
+ *
+ * @warning ERROR should not contain a loop control statement which
+ * could interact with the internal while loop, and should force an
+ * exit from the macro code (e.g. through a goto or a return) in order
+ * to prevent undefined results.
+ */
+#define GET_UTF8(val, GET_BYTE, ERROR)\
+    val= (GET_BYTE);\
+    {\
+        uint32_t top = (val & 128) >> 1;\
+        if ((val & 0xc0) == 0x80 || val >= 0xFE)\
+            ERROR\
+        while (val & top) {\
+            int tmp= (GET_BYTE) - 128;\
+            if(tmp>>6)\
+                ERROR\
+            val= (val<<6) + tmp;\
+            top <<= 5;\
+        }\
+        val &= (top << 1) - 1;\
+    }
+
+/**
+ * Convert a UTF-16 character (2 or 4 bytes) to its 32-bit UCS-4 encoded form.
+ *
+ * @param val       Output value, must be an lvalue of type uint32_t.
+ * @param GET_16BIT Expression returning two bytes of UTF-16 data converted
+ *                  to native byte order.  Evaluated one or two times.
+ * @param ERROR     Expression to be evaluated on invalid input,
+ *                  typically a goto statement.
+ */
+#define GET_UTF16(val, GET_16BIT, ERROR)\
+    val = GET_16BIT;\
+    {\
+        unsigned int hi = val - 0xD800;\
+        if (hi < 0x800) {\
+            val = GET_16BIT - 0xDC00;\
+            if (val > 0x3FFU || hi > 0x3FFU)\
+                ERROR\
+            val += (hi<<10) + 0x10000;\
+        }\
+    }\
+
+/**
+ * @def PUT_UTF8(val, tmp, PUT_BYTE)
+ * Convert a 32-bit Unicode character to its UTF-8 encoded form (up to 4 bytes long).
+ * @param val is an input-only argument and should be of type uint32_t. It holds
+ * a UCS-4 encoded Unicode character that is to be converted to UTF-8. If
+ * val is given as a function it is executed only once.
+ * @param tmp is a temporary variable and should be of type uint8_t. It
+ * represents an intermediate value during conversion that is to be
+ * output by PUT_BYTE.
+ * @param PUT_BYTE writes the converted UTF-8 bytes to any proper destination.
+ * It could be a function or a statement, and uses tmp as the input byte.
+ * For example, PUT_BYTE could be "*output++ = tmp;" PUT_BYTE will be
+ * executed up to 4 times for values in the valid UTF-8 range and up to
+ * 7 times in the general case, depending on the length of the converted
+ * Unicode character.
+ */
+#define PUT_UTF8(val, tmp, PUT_BYTE)\
+    {\
+        int bytes, shift;\
+        uint32_t in = val;\
+        if (in < 0x80) {\
+            tmp = in;\
+            PUT_BYTE\
+        } else {\
+            bytes = (av_log2(in) + 4) / 5;\
+            shift = (bytes - 1) * 6;\
+            tmp = (256 - (256 >> bytes)) | (in >> shift);\
+            PUT_BYTE\
+            while (shift >= 6) {\
+                shift -= 6;\
+                tmp = 0x80 | ((in >> shift) & 0x3f);\
+                PUT_BYTE\
+            }\
+        }\
+    }
+
+/**
+ * @def PUT_UTF16(val, tmp, PUT_16BIT)
+ * Convert a 32-bit Unicode character to its UTF-16 encoded form (2 or 4 bytes).
+ * @param val is an input-only argument and should be of type uint32_t. It holds
+ * a UCS-4 encoded Unicode character that is to be converted to UTF-16. If
+ * val is given as a function it is executed only once.
+ * @param tmp is a temporary variable and should be of type uint16_t. It
+ * represents an intermediate value during conversion that is to be
+ * output by PUT_16BIT.
+ * @param PUT_16BIT writes the converted UTF-16 data to any proper destination
+ * in desired endianness. It could be a function or a statement, and uses tmp
+ * as the input byte.  For example, PUT_BYTE could be "*output++ = tmp;"
+ * PUT_BYTE will be executed 1 or 2 times depending on input character.
+ */
+#define PUT_UTF16(val, tmp, PUT_16BIT)\
+    {\
+        uint32_t in = val;\
+        if (in < 0x10000) {\
+            tmp = in;\
+            PUT_16BIT\
+        } else {\
+            tmp = 0xD800 | ((in - 0x10000) >> 10);\
+            PUT_16BIT\
+            tmp = 0xDC00 | ((in - 0x10000) & 0x3FF);\
+            PUT_16BIT\
+        }\
+    }\
+
+
+
+#include "mem.h"
+
+#ifdef HAVE_AV_CONFIG_H
+#    include "internal.h"
+#endif /* HAVE_AV_CONFIG_H */
+
+#endif /* AVUTIL_COMMON_H */
+
+/*
+ * The following definitions are outside the multiple inclusion guard
+ * to ensure they are immediately available in intmath.h.
+ */
+
+#ifndef av_ceil_log2
+#   define av_ceil_log2     av_ceil_log2_c
+#endif
+#ifndef av_clip
+#   define av_clip          av_clip_c
+#endif
+#ifndef av_clip64
+#   define av_clip64        av_clip64_c
+#endif
+#ifndef av_clip_uint8
+#   define av_clip_uint8    av_clip_uint8_c
+#endif
+#ifndef av_clip_int8
+#   define av_clip_int8     av_clip_int8_c
+#endif
+#ifndef av_clip_uint16
+#   define av_clip_uint16   av_clip_uint16_c
+#endif
+#ifndef av_clip_int16
+#   define av_clip_int16    av_clip_int16_c
+#endif
+#ifndef av_clipl_int32
+#   define av_clipl_int32   av_clipl_int32_c
+#endif
+#ifndef av_clip_intp2
+#   define av_clip_intp2    av_clip_intp2_c
+#endif
+#ifndef av_clip_uintp2
+#   define av_clip_uintp2   av_clip_uintp2_c
+#endif
+#ifndef av_mod_uintp2
+#   define av_mod_uintp2    av_mod_uintp2_c
+#endif
+#ifndef av_sat_add32
+#   define av_sat_add32     av_sat_add32_c
+#endif
+#ifndef av_sat_dadd32
+#   define av_sat_dadd32    av_sat_dadd32_c
+#endif
+#ifndef av_sat_sub32
+#   define av_sat_sub32     av_sat_sub32_c
+#endif
+#ifndef av_sat_dsub32
+#   define av_sat_dsub32    av_sat_dsub32_c
+#endif
+#ifndef av_clipf
+#   define av_clipf         av_clipf_c
+#endif
+#ifndef av_clipd
+#   define av_clipd         av_clipd_c
+#endif
+#ifndef av_popcount
+#   define av_popcount      av_popcount_c
+#endif
+#ifndef av_popcount64
+#   define av_popcount64    av_popcount64_c
+#endif
+#ifndef av_parity
+#   define av_parity        av_parity_c
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cpu.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cpu.c
new file mode 100644
index 000000000..6548cc304
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cpu.c
@@ -0,0 +1,321 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdatomic.h>
+
+#include "attributes.h"
+#include "cpu.h"
+#include "cpu_internal.h"
+#include "config.h"
+#include "opt.h"
+#include "common.h"
+
+#if HAVE_SCHED_GETAFFINITY
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE
+#endif
+#include <sched.h>
+#endif
+#if HAVE_GETPROCESSAFFINITYMASK || HAVE_WINRT
+#include <windows.h>
+#endif
+#if HAVE_SYSCTL
+#if HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+static atomic_int cpu_flags = ATOMIC_VAR_INIT(-1);
+
+static int get_cpu_flags(void)
+{
+    if (ARCH_AARCH64)
+        return ff_get_cpu_flags_aarch64();
+    if (ARCH_ARM)
+        return ff_get_cpu_flags_arm();
+    if (ARCH_PPC)
+        return ff_get_cpu_flags_ppc();
+    if (ARCH_X86)
+        return ff_get_cpu_flags_x86();
+    return 0;
+}
+
+void av_force_cpu_flags(int arg){
+    if (ARCH_X86 &&
+           (arg & ( AV_CPU_FLAG_3DNOW    |
+                    AV_CPU_FLAG_3DNOWEXT |
+                    AV_CPU_FLAG_MMXEXT   |
+                    AV_CPU_FLAG_SSE      |
+                    AV_CPU_FLAG_SSE2     |
+                    AV_CPU_FLAG_SSE2SLOW |
+                    AV_CPU_FLAG_SSE3     |
+                    AV_CPU_FLAG_SSE3SLOW |
+                    AV_CPU_FLAG_SSSE3    |
+                    AV_CPU_FLAG_SSE4     |
+                    AV_CPU_FLAG_SSE42    |
+                    AV_CPU_FLAG_AVX      |
+                    AV_CPU_FLAG_AVXSLOW  |
+                    AV_CPU_FLAG_XOP      |
+                    AV_CPU_FLAG_FMA3     |
+                    AV_CPU_FLAG_FMA4     |
+                    AV_CPU_FLAG_AVX2     |
+                    AV_CPU_FLAG_AVX512   ))
+        && !(arg & AV_CPU_FLAG_MMX)) {
+        av_log(NULL, AV_LOG_WARNING, "MMX implied by specified flags\n");
+        arg |= AV_CPU_FLAG_MMX;
+    }
+
+    atomic_store_explicit(&cpu_flags, arg, memory_order_relaxed);
+}
+
+int av_get_cpu_flags(void)
+{
+    int flags = atomic_load_explicit(&cpu_flags, memory_order_relaxed);
+    if (flags == -1) {
+        flags = get_cpu_flags();
+        atomic_store_explicit(&cpu_flags, flags, memory_order_relaxed);
+    }
+    return flags;
+}
+
+void av_set_cpu_flags_mask(int mask)
+{
+    atomic_store_explicit(&cpu_flags, get_cpu_flags() & mask,
+                          memory_order_relaxed);
+}
+
+int av_parse_cpu_flags(const char *s)
+{
+#define CPUFLAG_MMXEXT   (AV_CPU_FLAG_MMX      | AV_CPU_FLAG_MMXEXT | AV_CPU_FLAG_CMOV)
+#define CPUFLAG_3DNOW    (AV_CPU_FLAG_3DNOW    | AV_CPU_FLAG_MMX)
+#define CPUFLAG_3DNOWEXT (AV_CPU_FLAG_3DNOWEXT | CPUFLAG_3DNOW)
+#define CPUFLAG_SSE      (AV_CPU_FLAG_SSE      | CPUFLAG_MMXEXT)
+#define CPUFLAG_SSE2     (AV_CPU_FLAG_SSE2     | CPUFLAG_SSE)
+#define CPUFLAG_SSE2SLOW (AV_CPU_FLAG_SSE2SLOW | CPUFLAG_SSE2)
+#define CPUFLAG_SSE3     (AV_CPU_FLAG_SSE3     | CPUFLAG_SSE2)
+#define CPUFLAG_SSE3SLOW (AV_CPU_FLAG_SSE3SLOW | CPUFLAG_SSE3)
+#define CPUFLAG_SSSE3    (AV_CPU_FLAG_SSSE3    | CPUFLAG_SSE3)
+#define CPUFLAG_SSE4     (AV_CPU_FLAG_SSE4     | CPUFLAG_SSSE3)
+#define CPUFLAG_SSE42    (AV_CPU_FLAG_SSE42    | CPUFLAG_SSE4)
+#define CPUFLAG_AVX      (AV_CPU_FLAG_AVX      | CPUFLAG_SSE42)
+#define CPUFLAG_AVXSLOW  (AV_CPU_FLAG_AVXSLOW  | CPUFLAG_AVX)
+#define CPUFLAG_XOP      (AV_CPU_FLAG_XOP      | CPUFLAG_AVX)
+#define CPUFLAG_FMA3     (AV_CPU_FLAG_FMA3     | CPUFLAG_AVX)
+#define CPUFLAG_FMA4     (AV_CPU_FLAG_FMA4     | CPUFLAG_AVX)
+#define CPUFLAG_AVX2     (AV_CPU_FLAG_AVX2     | CPUFLAG_AVX)
+#define CPUFLAG_BMI2     (AV_CPU_FLAG_BMI2     | AV_CPU_FLAG_BMI1)
+#define CPUFLAG_AESNI    (AV_CPU_FLAG_AESNI    | CPUFLAG_SSE42)
+#define CPUFLAG_AVX512   (AV_CPU_FLAG_AVX512   | CPUFLAG_AVX2)
+    static const AVOption cpuflags_opts[] = {
+        { "flags"   , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
+#if   ARCH_PPC
+        { "altivec" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ALTIVEC  },    .unit = "flags" },
+#elif ARCH_X86
+        { "mmx"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX      },    .unit = "flags" },
+        { "mmxext"  , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_MMXEXT       },    .unit = "flags" },
+        { "sse"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE          },    .unit = "flags" },
+        { "sse2"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE2         },    .unit = "flags" },
+        { "sse2slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE2SLOW     },    .unit = "flags" },
+        { "sse3"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE3         },    .unit = "flags" },
+        { "sse3slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE3SLOW     },    .unit = "flags" },
+        { "ssse3"   , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSSE3        },    .unit = "flags" },
+        { "atom"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ATOM     },    .unit = "flags" },
+        { "sse4.1"  , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE4         },    .unit = "flags" },
+        { "sse4.2"  , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE42        },    .unit = "flags" },
+        { "avx"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX          },    .unit = "flags" },
+        { "avxslow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVXSLOW      },    .unit = "flags" },
+        { "xop"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_XOP          },    .unit = "flags" },
+        { "fma3"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA3         },    .unit = "flags" },
+        { "fma4"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA4         },    .unit = "flags" },
+        { "avx2"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX2         },    .unit = "flags" },
+        { "bmi1"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_BMI1     },    .unit = "flags" },
+        { "bmi2"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_BMI2         },    .unit = "flags" },
+        { "3dnow"   , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOW        },    .unit = "flags" },
+        { "3dnowext", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOWEXT     },    .unit = "flags" },
+        { "cmov",     NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_CMOV     },    .unit = "flags" },
+        { "aesni"   , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AESNI        },    .unit = "flags" },
+        { "avx512"  , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX512       },    .unit = "flags" },
+#elif ARCH_ARM
+        { "armv5te",  NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV5TE  },    .unit = "flags" },
+        { "armv6",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6    },    .unit = "flags" },
+        { "armv6t2",  NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6T2  },    .unit = "flags" },
+        { "vfp",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP      },    .unit = "flags" },
+        { "vfp_vm",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP_VM   },    .unit = "flags" },
+        { "vfpv3",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFPV3    },    .unit = "flags" },
+        { "neon",     NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON     },    .unit = "flags" },
+#elif ARCH_AARCH64
+        { "armv8",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV8    },    .unit = "flags" },
+        { "neon",     NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON     },    .unit = "flags" },
+        { "vfp",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP      },    .unit = "flags" },
+#endif
+        { NULL },
+    };
+    static const AVClass class = {
+        .class_name = "cpuflags",
+        .item_name  = av_default_item_name,
+        .option     = cpuflags_opts,
+        .version    = LIBAVUTIL_VERSION_INT,
+    };
+
+    int flags = 0, ret;
+    const AVClass *pclass = &class;
+
+    if ((ret = av_opt_eval_flags(&pclass, &cpuflags_opts[0], s, &flags)) < 0)
+        return ret;
+
+    return flags & INT_MAX;
+}
+
+int av_parse_cpu_caps(unsigned *flags, const char *s)
+{
+        static const AVOption cpuflags_opts[] = {
+        { "flags"   , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
+#if   ARCH_PPC
+        { "altivec" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ALTIVEC  },    .unit = "flags" },
+#elif ARCH_X86
+        { "mmx"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX      },    .unit = "flags" },
+        { "mmx2"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX2     },    .unit = "flags" },
+        { "mmxext"  , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX2     },    .unit = "flags" },
+        { "sse"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE      },    .unit = "flags" },
+        { "sse2"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE2     },    .unit = "flags" },
+        { "sse2slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE2SLOW },    .unit = "flags" },
+        { "sse3"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE3     },    .unit = "flags" },
+        { "sse3slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE3SLOW },    .unit = "flags" },
+        { "ssse3"   , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSSE3    },    .unit = "flags" },
+        { "atom"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ATOM     },    .unit = "flags" },
+        { "sse4.1"  , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE4     },    .unit = "flags" },
+        { "sse4.2"  , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE42    },    .unit = "flags" },
+        { "avx"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AVX      },    .unit = "flags" },
+        { "avxslow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AVXSLOW  },    .unit = "flags" },
+        { "xop"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_XOP      },    .unit = "flags" },
+        { "fma3"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_FMA3     },    .unit = "flags" },
+        { "fma4"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_FMA4     },    .unit = "flags" },
+        { "avx2"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AVX2     },    .unit = "flags" },
+        { "bmi1"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_BMI1     },    .unit = "flags" },
+        { "bmi2"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_BMI2     },    .unit = "flags" },
+        { "3dnow"   , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_3DNOW    },    .unit = "flags" },
+        { "3dnowext", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_3DNOWEXT },    .unit = "flags" },
+        { "cmov",     NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_CMOV     },    .unit = "flags" },
+        { "aesni",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AESNI    },    .unit = "flags" },
+        { "avx512"  , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AVX512   },    .unit = "flags" },
+
+#define CPU_FLAG_P2 AV_CPU_FLAG_CMOV | AV_CPU_FLAG_MMX
+#define CPU_FLAG_P3 CPU_FLAG_P2 | AV_CPU_FLAG_MMX2 | AV_CPU_FLAG_SSE
+#define CPU_FLAG_P4 CPU_FLAG_P3| AV_CPU_FLAG_SSE2
+        { "pentium2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_P2          },    .unit = "flags" },
+        { "pentium3", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_P3          },    .unit = "flags" },
+        { "pentium4", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_P4          },    .unit = "flags" },
+
+#define CPU_FLAG_K62 AV_CPU_FLAG_MMX | AV_CPU_FLAG_3DNOW
+#define CPU_FLAG_ATHLON   CPU_FLAG_K62 | AV_CPU_FLAG_CMOV | AV_CPU_FLAG_3DNOWEXT | AV_CPU_FLAG_MMX2
+#define CPU_FLAG_ATHLONXP CPU_FLAG_ATHLON | AV_CPU_FLAG_SSE
+#define CPU_FLAG_K8  CPU_FLAG_ATHLONXP | AV_CPU_FLAG_SSE2
+        { "k6",       NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX      },    .unit = "flags" },
+        { "k62",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_K62         },    .unit = "flags" },
+        { "athlon",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_ATHLON      },    .unit = "flags" },
+        { "athlonxp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_ATHLONXP    },    .unit = "flags" },
+        { "k8",       NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_K8          },    .unit = "flags" },
+#elif ARCH_ARM
+        { "armv5te",  NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV5TE  },    .unit = "flags" },
+        { "armv6",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6    },    .unit = "flags" },
+        { "armv6t2",  NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6T2  },    .unit = "flags" },
+        { "vfp",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP      },    .unit = "flags" },
+        { "vfp_vm",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP_VM   },    .unit = "flags" },
+        { "vfpv3",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFPV3    },    .unit = "flags" },
+        { "neon",     NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON     },    .unit = "flags" },
+        { "setend",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SETEND   },    .unit = "flags" },
+#elif ARCH_AARCH64
+        { "armv8",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV8    },    .unit = "flags" },
+        { "neon",     NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON     },    .unit = "flags" },
+        { "vfp",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP      },    .unit = "flags" },
+#endif
+        { NULL },
+    };
+    static const AVClass class = {
+        .class_name = "cpuflags",
+        .item_name  = av_default_item_name,
+        .option     = cpuflags_opts,
+        .version    = LIBAVUTIL_VERSION_INT,
+    };
+    const AVClass *pclass = &class;
+
+    return av_opt_eval_flags(&pclass, &cpuflags_opts[0], s, flags);
+}
+
+int av_cpu_count(void)
+{
+    static volatile int printed;
+
+    int nb_cpus = 1;
+#if HAVE_WINRT
+    SYSTEM_INFO sysinfo;
+#endif
+#if HAVE_SCHED_GETAFFINITY && defined(CPU_COUNT)
+    cpu_set_t cpuset;
+
+    CPU_ZERO(&cpuset);
+
+    if (!sched_getaffinity(0, sizeof(cpuset), &cpuset))
+        nb_cpus = CPU_COUNT(&cpuset);
+#elif HAVE_GETPROCESSAFFINITYMASK
+    DWORD_PTR proc_aff, sys_aff;
+    if (GetProcessAffinityMask(GetCurrentProcess(), &proc_aff, &sys_aff))
+        nb_cpus = av_popcount64(proc_aff);
+#elif HAVE_SYSCTL && defined(HW_NCPU)
+    int mib[2] = { CTL_HW, HW_NCPU };
+    size_t len = sizeof(nb_cpus);
+
+    if (sysctl(mib, 2, &nb_cpus, &len, NULL, 0) == -1)
+        nb_cpus = 0;
+#elif HAVE_SYSCONF && defined(_SC_NPROC_ONLN)
+    nb_cpus = sysconf(_SC_NPROC_ONLN);
+#elif HAVE_SYSCONF && defined(_SC_NPROCESSORS_ONLN)
+    nb_cpus = sysconf(_SC_NPROCESSORS_ONLN);
+#elif HAVE_WINRT
+    GetNativeSystemInfo(&sysinfo);
+    nb_cpus = sysinfo.dwNumberOfProcessors;
+#endif
+
+    if (!printed) {
+        av_log(NULL, AV_LOG_DEBUG, "detected %d logical cores\n", nb_cpus);
+        printed = 1;
+    }
+
+    return nb_cpus;
+}
+
+size_t av_cpu_max_align(void)
+{
+    if (ARCH_AARCH64)
+        return ff_get_cpu_max_align_aarch64();
+    if (ARCH_ARM)
+        return ff_get_cpu_max_align_arm();
+    if (ARCH_PPC)
+        return ff_get_cpu_max_align_ppc();
+    if (ARCH_X86)
+        return ff_get_cpu_max_align_x86();
+
+    return 8;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cpu.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cpu.h
new file mode 100644
index 000000000..8bb9eb606
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cpu.h
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_CPU_H
+#define AVUTIL_CPU_H
+
+#include <stddef.h>
+
+#include "attributes.h"
+
+#define AV_CPU_FLAG_FORCE    0x80000000 /* force usage of selected flags (OR) */
+
+    /* lower 16 bits - CPU features */
+#define AV_CPU_FLAG_MMX          0x0001 ///< standard MMX
+#define AV_CPU_FLAG_MMXEXT       0x0002 ///< SSE integer functions or AMD MMX ext
+#define AV_CPU_FLAG_MMX2         0x0002 ///< SSE integer functions or AMD MMX ext
+#define AV_CPU_FLAG_3DNOW        0x0004 ///< AMD 3DNOW
+#define AV_CPU_FLAG_SSE          0x0008 ///< SSE functions
+#define AV_CPU_FLAG_SSE2         0x0010 ///< PIV SSE2 functions
+#define AV_CPU_FLAG_SSE2SLOW 0x40000000 ///< SSE2 supported, but usually not faster
+                                        ///< than regular MMX/SSE (e.g. Core1)
+#define AV_CPU_FLAG_3DNOWEXT     0x0020 ///< AMD 3DNowExt
+#define AV_CPU_FLAG_SSE3         0x0040 ///< Prescott SSE3 functions
+#define AV_CPU_FLAG_SSE3SLOW 0x20000000 ///< SSE3 supported, but usually not faster
+                                        ///< than regular MMX/SSE (e.g. Core1)
+#define AV_CPU_FLAG_SSSE3        0x0080 ///< Conroe SSSE3 functions
+#define AV_CPU_FLAG_SSSE3SLOW 0x4000000 ///< SSSE3 supported, but usually not faster
+#define AV_CPU_FLAG_ATOM     0x10000000 ///< Atom processor, some SSSE3 instructions are slower
+#define AV_CPU_FLAG_SSE4         0x0100 ///< Penryn SSE4.1 functions
+#define AV_CPU_FLAG_SSE42        0x0200 ///< Nehalem SSE4.2 functions
+#define AV_CPU_FLAG_AESNI       0x80000 ///< Advanced Encryption Standard functions
+#define AV_CPU_FLAG_AVX          0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used
+#define AV_CPU_FLAG_AVXSLOW   0x8000000 ///< AVX supported, but slow when using YMM registers (e.g. Bulldozer)
+#define AV_CPU_FLAG_XOP          0x0400 ///< Bulldozer XOP functions
+#define AV_CPU_FLAG_FMA4         0x0800 ///< Bulldozer FMA4 functions
+#define AV_CPU_FLAG_CMOV         0x1000 ///< supports cmov instruction
+#define AV_CPU_FLAG_AVX2         0x8000 ///< AVX2 functions: requires OS support even if YMM registers aren't used
+#define AV_CPU_FLAG_FMA3        0x10000 ///< Haswell FMA3 functions
+#define AV_CPU_FLAG_BMI1        0x20000 ///< Bit Manipulation Instruction Set 1
+#define AV_CPU_FLAG_BMI2        0x40000 ///< Bit Manipulation Instruction Set 2
+#define AV_CPU_FLAG_AVX512     0x100000 ///< AVX-512 functions: requires OS support even if YMM/ZMM registers aren't used
+
+#define AV_CPU_FLAG_ALTIVEC      0x0001 ///< standard
+#define AV_CPU_FLAG_VSX          0x0002 ///< ISA 2.06
+#define AV_CPU_FLAG_POWER8       0x0004 ///< ISA 2.07
+
+#define AV_CPU_FLAG_ARMV5TE      (1 << 0)
+#define AV_CPU_FLAG_ARMV6        (1 << 1)
+#define AV_CPU_FLAG_ARMV6T2      (1 << 2)
+#define AV_CPU_FLAG_VFP          (1 << 3)
+#define AV_CPU_FLAG_VFPV3        (1 << 4)
+#define AV_CPU_FLAG_NEON         (1 << 5)
+#define AV_CPU_FLAG_ARMV8        (1 << 6)
+#define AV_CPU_FLAG_VFP_VM       (1 << 7) ///< VFPv2 vector mode, deprecated in ARMv7-A and unavailable in various CPUs implementations
+#define AV_CPU_FLAG_SETEND       (1 <<16)
+
+/**
+ * Return the flags which specify extensions supported by the CPU.
+ * The returned value is affected by av_force_cpu_flags() if that was used
+ * before. So av_get_cpu_flags() can easily be used in an application to
+ * detect the enabled cpu flags.
+ */
+int av_get_cpu_flags(void);
+
+/**
+ * Disables cpu detection and forces the specified flags.
+ * -1 is a special case that disables forcing of specific flags.
+ */
+void av_force_cpu_flags(int flags);
+
+/**
+ * Set a mask on flags returned by av_get_cpu_flags().
+ * This function is mainly useful for testing.
+ * Please use av_force_cpu_flags() and av_get_cpu_flags() instead which are more flexible
+ */
+attribute_deprecated void av_set_cpu_flags_mask(int mask);
+
+/**
+ * Parse CPU flags from a string.
+ *
+ * The returned flags contain the specified flags as well as related unspecified flags.
+ *
+ * This function exists only for compatibility with libav.
+ * Please use av_parse_cpu_caps() when possible.
+ * @return a combination of AV_CPU_* flags, negative on error.
+ */
+attribute_deprecated
+int av_parse_cpu_flags(const char *s);
+
+/**
+ * Parse CPU caps from a string and update the given AV_CPU_* flags based on that.
+ *
+ * @return negative on error.
+ */
+int av_parse_cpu_caps(unsigned *flags, const char *s);
+
+/**
+ * @return the number of logical CPU cores present.
+ */
+int av_cpu_count(void);
+
+/**
+ * Get the maximum data alignment that may be required by FFmpeg.
+ *
+ * Note that this is affected by the build configuration and the CPU flags mask,
+ * so e.g. if the CPU supports AVX, but libavutil has been built with
+ * --disable-avx or the AV_CPU_FLAG_AVX flag has been disabled through
+ *  av_set_cpu_flags_mask(), then this function will behave as if AVX is not
+ *  present.
+ */
+size_t av_cpu_max_align(void);
+
+#endif /* AVUTIL_CPU_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cpu_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cpu_internal.h
new file mode 100644
index 000000000..37122d1c5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/cpu_internal.h
@@ -0,0 +1,54 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_CPU_INTERNAL_H
+#define AVUTIL_CPU_INTERNAL_H
+
+#include "config.h"
+
+#include "cpu.h"
+
+#define CPUEXT_SUFFIX(flags, suffix, cpuext)                            \
+    (HAVE_ ## cpuext ## suffix && ((flags) & AV_CPU_FLAG_ ## cpuext))
+
+#define CPUEXT_SUFFIX_FAST2(flags, suffix, cpuext, slow_cpuext)         \
+    (HAVE_ ## cpuext ## suffix && ((flags) & AV_CPU_FLAG_ ## cpuext) && \
+     !((flags) & AV_CPU_FLAG_ ## slow_cpuext ## SLOW))
+
+#define CPUEXT_SUFFIX_SLOW2(flags, suffix, cpuext, slow_cpuext)         \
+    (HAVE_ ## cpuext ## suffix && ((flags) & AV_CPU_FLAG_ ## cpuext) && \
+     ((flags) & AV_CPU_FLAG_ ## slow_cpuext ## SLOW))
+
+#define CPUEXT_SUFFIX_FAST(flags, suffix, cpuext) CPUEXT_SUFFIX_FAST2(flags, suffix, cpuext, cpuext)
+#define CPUEXT_SUFFIX_SLOW(flags, suffix, cpuext) CPUEXT_SUFFIX_SLOW2(flags, suffix, cpuext, cpuext)
+
+#define CPUEXT(flags, cpuext) CPUEXT_SUFFIX(flags, , cpuext)
+#define CPUEXT_FAST(flags, cpuext) CPUEXT_SUFFIX_FAST(flags, , cpuext)
+#define CPUEXT_SLOW(flags, cpuext) CPUEXT_SUFFIX_SLOW(flags, , cpuext)
+
+int ff_get_cpu_flags_aarch64(void);
+int ff_get_cpu_flags_arm(void);
+int ff_get_cpu_flags_ppc(void);
+int ff_get_cpu_flags_x86(void);
+
+size_t ff_get_cpu_max_align_aarch64(void);
+size_t ff_get_cpu_max_align_arm(void);
+size_t ff_get_cpu_max_align_ppc(void);
+size_t ff_get_cpu_max_align_x86(void);
+
+#endif /* AVUTIL_CPU_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/crc.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/crc.c
new file mode 100644
index 000000000..c45ea63a6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/crc.c
@@ -0,0 +1,415 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "thread.h"
+#include "avassert.h"
+#include "bswap.h"
+#include "common.h"
+#include "crc.h"
+
+#if CONFIG_HARDCODED_TABLES
+static const AVCRC av_crc_table[AV_CRC_MAX][257] = {
+    [AV_CRC_8_ATM] = {
+        0x00, 0x07, 0x0E, 0x09, 0x1C, 0x1B, 0x12, 0x15, 0x38, 0x3F, 0x36, 0x31,
+        0x24, 0x23, 0x2A, 0x2D, 0x70, 0x77, 0x7E, 0x79, 0x6C, 0x6B, 0x62, 0x65,
+        0x48, 0x4F, 0x46, 0x41, 0x54, 0x53, 0x5A, 0x5D, 0xE0, 0xE7, 0xEE, 0xE9,
+        0xFC, 0xFB, 0xF2, 0xF5, 0xD8, 0xDF, 0xD6, 0xD1, 0xC4, 0xC3, 0xCA, 0xCD,
+        0x90, 0x97, 0x9E, 0x99, 0x8C, 0x8B, 0x82, 0x85, 0xA8, 0xAF, 0xA6, 0xA1,
+        0xB4, 0xB3, 0xBA, 0xBD, 0xC7, 0xC0, 0xC9, 0xCE, 0xDB, 0xDC, 0xD5, 0xD2,
+        0xFF, 0xF8, 0xF1, 0xF6, 0xE3, 0xE4, 0xED, 0xEA, 0xB7, 0xB0, 0xB9, 0xBE,
+        0xAB, 0xAC, 0xA5, 0xA2, 0x8F, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9D, 0x9A,
+        0x27, 0x20, 0x29, 0x2E, 0x3B, 0x3C, 0x35, 0x32, 0x1F, 0x18, 0x11, 0x16,
+        0x03, 0x04, 0x0D, 0x0A, 0x57, 0x50, 0x59, 0x5E, 0x4B, 0x4C, 0x45, 0x42,
+        0x6F, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7D, 0x7A, 0x89, 0x8E, 0x87, 0x80,
+        0x95, 0x92, 0x9B, 0x9C, 0xB1, 0xB6, 0xBF, 0xB8, 0xAD, 0xAA, 0xA3, 0xA4,
+        0xF9, 0xFE, 0xF7, 0xF0, 0xE5, 0xE2, 0xEB, 0xEC, 0xC1, 0xC6, 0xCF, 0xC8,
+        0xDD, 0xDA, 0xD3, 0xD4, 0x69, 0x6E, 0x67, 0x60, 0x75, 0x72, 0x7B, 0x7C,
+        0x51, 0x56, 0x5F, 0x58, 0x4D, 0x4A, 0x43, 0x44, 0x19, 0x1E, 0x17, 0x10,
+        0x05, 0x02, 0x0B, 0x0C, 0x21, 0x26, 0x2F, 0x28, 0x3D, 0x3A, 0x33, 0x34,
+        0x4E, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5C, 0x5B, 0x76, 0x71, 0x78, 0x7F,
+        0x6A, 0x6D, 0x64, 0x63, 0x3E, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2C, 0x2B,
+        0x06, 0x01, 0x08, 0x0F, 0x1A, 0x1D, 0x14, 0x13, 0xAE, 0xA9, 0xA0, 0xA7,
+        0xB2, 0xB5, 0xBC, 0xBB, 0x96, 0x91, 0x98, 0x9F, 0x8A, 0x8D, 0x84, 0x83,
+        0xDE, 0xD9, 0xD0, 0xD7, 0xC2, 0xC5, 0xCC, 0xCB, 0xE6, 0xE1, 0xE8, 0xEF,
+        0xFA, 0xFD, 0xF4, 0xF3, 0x01
+    },
+    [AV_CRC_8_EBU] = {
+        0x00, 0x1D, 0x3A, 0x27, 0x74, 0x69, 0x4E, 0x53, 0xE8, 0xF5, 0xD2, 0xCF,
+        0x9C, 0x81, 0xA6, 0xBB, 0xCD, 0xD0, 0xF7, 0xEA, 0xB9, 0xA4, 0x83, 0x9E,
+        0x25, 0x38, 0x1F, 0x02, 0x51, 0x4C, 0x6B, 0x76, 0x87, 0x9A, 0xBD, 0xA0,
+        0xF3, 0xEE, 0xC9, 0xD4, 0x6F, 0x72, 0x55, 0x48, 0x1B, 0x06, 0x21, 0x3C,
+        0x4A, 0x57, 0x70, 0x6D, 0x3E, 0x23, 0x04, 0x19, 0xA2, 0xBF, 0x98, 0x85,
+        0xD6, 0xCB, 0xEC, 0xF1, 0x13, 0x0E, 0x29, 0x34, 0x67, 0x7A, 0x5D, 0x40,
+        0xFB, 0xE6, 0xC1, 0xDC, 0x8F, 0x92, 0xB5, 0xA8, 0xDE, 0xC3, 0xE4, 0xF9,
+        0xAA, 0xB7, 0x90, 0x8D, 0x36, 0x2B, 0x0C, 0x11, 0x42, 0x5F, 0x78, 0x65,
+        0x94, 0x89, 0xAE, 0xB3, 0xE0, 0xFD, 0xDA, 0xC7, 0x7C, 0x61, 0x46, 0x5B,
+        0x08, 0x15, 0x32, 0x2F, 0x59, 0x44, 0x63, 0x7E, 0x2D, 0x30, 0x17, 0x0A,
+        0xB1, 0xAC, 0x8B, 0x96, 0xC5, 0xD8, 0xFF, 0xE2, 0x26, 0x3B, 0x1C, 0x01,
+        0x52, 0x4F, 0x68, 0x75, 0xCE, 0xD3, 0xF4, 0xE9, 0xBA, 0xA7, 0x80, 0x9D,
+        0xEB, 0xF6, 0xD1, 0xCC, 0x9F, 0x82, 0xA5, 0xB8, 0x03, 0x1E, 0x39, 0x24,
+        0x77, 0x6A, 0x4D, 0x50, 0xA1, 0xBC, 0x9B, 0x86, 0xD5, 0xC8, 0xEF, 0xF2,
+        0x49, 0x54, 0x73, 0x6E, 0x3D, 0x20, 0x07, 0x1A, 0x6C, 0x71, 0x56, 0x4B,
+        0x18, 0x05, 0x22, 0x3F, 0x84, 0x99, 0xBE, 0xA3, 0xF0, 0xED, 0xCA, 0xD7,
+        0x35, 0x28, 0x0F, 0x12, 0x41, 0x5C, 0x7B, 0x66, 0xDD, 0xC0, 0xE7, 0xFA,
+        0xA9, 0xB4, 0x93, 0x8E, 0xF8, 0xE5, 0xC2, 0xDF, 0x8C, 0x91, 0xB6, 0xAB,
+        0x10, 0x0D, 0x2A, 0x37, 0x64, 0x79, 0x5E, 0x43, 0xB2, 0xAF, 0x88, 0x95,
+        0xC6, 0xDB, 0xFC, 0xE1, 0x5A, 0x47, 0x60, 0x7D, 0x2E, 0x33, 0x14, 0x09,
+        0x7F, 0x62, 0x45, 0x58, 0x0B, 0x16, 0x31, 0x2C, 0x97, 0x8A, 0xAD, 0xB0,
+        0xE3, 0xFE, 0xD9, 0xC4, 0x01
+    },
+    [AV_CRC_16_ANSI] = {
+        0x0000, 0x0580, 0x0F80, 0x0A00, 0x1B80, 0x1E00, 0x1400, 0x1180,
+        0x3380, 0x3600, 0x3C00, 0x3980, 0x2800, 0x2D80, 0x2780, 0x2200,
+        0x6380, 0x6600, 0x6C00, 0x6980, 0x7800, 0x7D80, 0x7780, 0x7200,
+        0x5000, 0x5580, 0x5F80, 0x5A00, 0x4B80, 0x4E00, 0x4400, 0x4180,
+        0xC380, 0xC600, 0xCC00, 0xC980, 0xD800, 0xDD80, 0xD780, 0xD200,
+        0xF000, 0xF580, 0xFF80, 0xFA00, 0xEB80, 0xEE00, 0xE400, 0xE180,
+        0xA000, 0xA580, 0xAF80, 0xAA00, 0xBB80, 0xBE00, 0xB400, 0xB180,
+        0x9380, 0x9600, 0x9C00, 0x9980, 0x8800, 0x8D80, 0x8780, 0x8200,
+        0x8381, 0x8601, 0x8C01, 0x8981, 0x9801, 0x9D81, 0x9781, 0x9201,
+        0xB001, 0xB581, 0xBF81, 0xBA01, 0xAB81, 0xAE01, 0xA401, 0xA181,
+        0xE001, 0xE581, 0xEF81, 0xEA01, 0xFB81, 0xFE01, 0xF401, 0xF181,
+        0xD381, 0xD601, 0xDC01, 0xD981, 0xC801, 0xCD81, 0xC781, 0xC201,
+        0x4001, 0x4581, 0x4F81, 0x4A01, 0x5B81, 0x5E01, 0x5401, 0x5181,
+        0x7381, 0x7601, 0x7C01, 0x7981, 0x6801, 0x6D81, 0x6781, 0x6201,
+        0x2381, 0x2601, 0x2C01, 0x2981, 0x3801, 0x3D81, 0x3781, 0x3201,
+        0x1001, 0x1581, 0x1F81, 0x1A01, 0x0B81, 0x0E01, 0x0401, 0x0181,
+        0x0383, 0x0603, 0x0C03, 0x0983, 0x1803, 0x1D83, 0x1783, 0x1203,
+        0x3003, 0x3583, 0x3F83, 0x3A03, 0x2B83, 0x2E03, 0x2403, 0x2183,
+        0x6003, 0x6583, 0x6F83, 0x6A03, 0x7B83, 0x7E03, 0x7403, 0x7183,
+        0x5383, 0x5603, 0x5C03, 0x5983, 0x4803, 0x4D83, 0x4783, 0x4203,
+        0xC003, 0xC583, 0xCF83, 0xCA03, 0xDB83, 0xDE03, 0xD403, 0xD183,
+        0xF383, 0xF603, 0xFC03, 0xF983, 0xE803, 0xED83, 0xE783, 0xE203,
+        0xA383, 0xA603, 0xAC03, 0xA983, 0xB803, 0xBD83, 0xB783, 0xB203,
+        0x9003, 0x9583, 0x9F83, 0x9A03, 0x8B83, 0x8E03, 0x8403, 0x8183,
+        0x8002, 0x8582, 0x8F82, 0x8A02, 0x9B82, 0x9E02, 0x9402, 0x9182,
+        0xB382, 0xB602, 0xBC02, 0xB982, 0xA802, 0xAD82, 0xA782, 0xA202,
+        0xE382, 0xE602, 0xEC02, 0xE982, 0xF802, 0xFD82, 0xF782, 0xF202,
+        0xD002, 0xD582, 0xDF82, 0xDA02, 0xCB82, 0xCE02, 0xC402, 0xC182,
+        0x4382, 0x4602, 0x4C02, 0x4982, 0x5802, 0x5D82, 0x5782, 0x5202,
+        0x7002, 0x7582, 0x7F82, 0x7A02, 0x6B82, 0x6E02, 0x6402, 0x6182,
+        0x2002, 0x2582, 0x2F82, 0x2A02, 0x3B82, 0x3E02, 0x3402, 0x3182,
+        0x1382, 0x1602, 0x1C02, 0x1982, 0x0802, 0x0D82, 0x0782, 0x0202,
+        0x0001
+    },
+    [AV_CRC_16_CCITT] = {
+        0x0000, 0x2110, 0x4220, 0x6330, 0x8440, 0xA550, 0xC660, 0xE770,
+        0x0881, 0x2991, 0x4AA1, 0x6BB1, 0x8CC1, 0xADD1, 0xCEE1, 0xEFF1,
+        0x3112, 0x1002, 0x7332, 0x5222, 0xB552, 0x9442, 0xF772, 0xD662,
+        0x3993, 0x1883, 0x7BB3, 0x5AA3, 0xBDD3, 0x9CC3, 0xFFF3, 0xDEE3,
+        0x6224, 0x4334, 0x2004, 0x0114, 0xE664, 0xC774, 0xA444, 0x8554,
+        0x6AA5, 0x4BB5, 0x2885, 0x0995, 0xEEE5, 0xCFF5, 0xACC5, 0x8DD5,
+        0x5336, 0x7226, 0x1116, 0x3006, 0xD776, 0xF666, 0x9556, 0xB446,
+        0x5BB7, 0x7AA7, 0x1997, 0x3887, 0xDFF7, 0xFEE7, 0x9DD7, 0xBCC7,
+        0xC448, 0xE558, 0x8668, 0xA778, 0x4008, 0x6118, 0x0228, 0x2338,
+        0xCCC9, 0xEDD9, 0x8EE9, 0xAFF9, 0x4889, 0x6999, 0x0AA9, 0x2BB9,
+        0xF55A, 0xD44A, 0xB77A, 0x966A, 0x711A, 0x500A, 0x333A, 0x122A,
+        0xFDDB, 0xDCCB, 0xBFFB, 0x9EEB, 0x799B, 0x588B, 0x3BBB, 0x1AAB,
+        0xA66C, 0x877C, 0xE44C, 0xC55C, 0x222C, 0x033C, 0x600C, 0x411C,
+        0xAEED, 0x8FFD, 0xECCD, 0xCDDD, 0x2AAD, 0x0BBD, 0x688D, 0x499D,
+        0x977E, 0xB66E, 0xD55E, 0xF44E, 0x133E, 0x322E, 0x511E, 0x700E,
+        0x9FFF, 0xBEEF, 0xDDDF, 0xFCCF, 0x1BBF, 0x3AAF, 0x599F, 0x788F,
+        0x8891, 0xA981, 0xCAB1, 0xEBA1, 0x0CD1, 0x2DC1, 0x4EF1, 0x6FE1,
+        0x8010, 0xA100, 0xC230, 0xE320, 0x0450, 0x2540, 0x4670, 0x6760,
+        0xB983, 0x9893, 0xFBA3, 0xDAB3, 0x3DC3, 0x1CD3, 0x7FE3, 0x5EF3,
+        0xB102, 0x9012, 0xF322, 0xD232, 0x3542, 0x1452, 0x7762, 0x5672,
+        0xEAB5, 0xCBA5, 0xA895, 0x8985, 0x6EF5, 0x4FE5, 0x2CD5, 0x0DC5,
+        0xE234, 0xC324, 0xA014, 0x8104, 0x6674, 0x4764, 0x2454, 0x0544,
+        0xDBA7, 0xFAB7, 0x9987, 0xB897, 0x5FE7, 0x7EF7, 0x1DC7, 0x3CD7,
+        0xD326, 0xF236, 0x9106, 0xB016, 0x5766, 0x7676, 0x1546, 0x3456,
+        0x4CD9, 0x6DC9, 0x0EF9, 0x2FE9, 0xC899, 0xE989, 0x8AB9, 0xABA9,
+        0x4458, 0x6548, 0x0678, 0x2768, 0xC018, 0xE108, 0x8238, 0xA328,
+        0x7DCB, 0x5CDB, 0x3FEB, 0x1EFB, 0xF98B, 0xD89B, 0xBBAB, 0x9ABB,
+        0x754A, 0x545A, 0x376A, 0x167A, 0xF10A, 0xD01A, 0xB32A, 0x923A,
+        0x2EFD, 0x0FED, 0x6CDD, 0x4DCD, 0xAABD, 0x8BAD, 0xE89D, 0xC98D,
+        0x267C, 0x076C, 0x645C, 0x454C, 0xA23C, 0x832C, 0xE01C, 0xC10C,
+        0x1FEF, 0x3EFF, 0x5DCF, 0x7CDF, 0x9BAF, 0xBABF, 0xD98F, 0xF89F,
+        0x176E, 0x367E, 0x554E, 0x745E, 0x932E, 0xB23E, 0xD10E, 0xF01E,
+        0x0001
+    },
+    [AV_CRC_24_IEEE] = {
+        0x000000, 0xFB4C86, 0x0DD58A, 0xF6990C, 0xE1E693, 0x1AAA15, 0xEC3319,
+        0x177F9F, 0x3981A1, 0xC2CD27, 0x34542B, 0xCF18AD, 0xD86732, 0x232BB4,
+        0xD5B2B8, 0x2EFE3E, 0x894EC5, 0x720243, 0x849B4F, 0x7FD7C9, 0x68A856,
+        0x93E4D0, 0x657DDC, 0x9E315A, 0xB0CF64, 0x4B83E2, 0xBD1AEE, 0x465668,
+        0x5129F7, 0xAA6571, 0x5CFC7D, 0xA7B0FB, 0xE9D10C, 0x129D8A, 0xE40486,
+        0x1F4800, 0x08379F, 0xF37B19, 0x05E215, 0xFEAE93, 0xD050AD, 0x2B1C2B,
+        0xDD8527, 0x26C9A1, 0x31B63E, 0xCAFAB8, 0x3C63B4, 0xC72F32, 0x609FC9,
+        0x9BD34F, 0x6D4A43, 0x9606C5, 0x81795A, 0x7A35DC, 0x8CACD0, 0x77E056,
+        0x591E68, 0xA252EE, 0x54CBE2, 0xAF8764, 0xB8F8FB, 0x43B47D, 0xB52D71,
+        0x4E61F7, 0xD2A319, 0x29EF9F, 0xDF7693, 0x243A15, 0x33458A, 0xC8090C,
+        0x3E9000, 0xC5DC86, 0xEB22B8, 0x106E3E, 0xE6F732, 0x1DBBB4, 0x0AC42B,
+        0xF188AD, 0x0711A1, 0xFC5D27, 0x5BEDDC, 0xA0A15A, 0x563856, 0xAD74D0,
+        0xBA0B4F, 0x4147C9, 0xB7DEC5, 0x4C9243, 0x626C7D, 0x9920FB, 0x6FB9F7,
+        0x94F571, 0x838AEE, 0x78C668, 0x8E5F64, 0x7513E2, 0x3B7215, 0xC03E93,
+        0x36A79F, 0xCDEB19, 0xDA9486, 0x21D800, 0xD7410C, 0x2C0D8A, 0x02F3B4,
+        0xF9BF32, 0x0F263E, 0xF46AB8, 0xE31527, 0x1859A1, 0xEEC0AD, 0x158C2B,
+        0xB23CD0, 0x497056, 0xBFE95A, 0x44A5DC, 0x53DA43, 0xA896C5, 0x5E0FC9,
+        0xA5434F, 0x8BBD71, 0x70F1F7, 0x8668FB, 0x7D247D, 0x6A5BE2, 0x911764,
+        0x678E68, 0x9CC2EE, 0xA44733, 0x5F0BB5, 0xA992B9, 0x52DE3F, 0x45A1A0,
+        0xBEED26, 0x48742A, 0xB338AC, 0x9DC692, 0x668A14, 0x901318, 0x6B5F9E,
+        0x7C2001, 0x876C87, 0x71F58B, 0x8AB90D, 0x2D09F6, 0xD64570, 0x20DC7C,
+        0xDB90FA, 0xCCEF65, 0x37A3E3, 0xC13AEF, 0x3A7669, 0x148857, 0xEFC4D1,
+        0x195DDD, 0xE2115B, 0xF56EC4, 0x0E2242, 0xF8BB4E, 0x03F7C8, 0x4D963F,
+        0xB6DAB9, 0x4043B5, 0xBB0F33, 0xAC70AC, 0x573C2A, 0xA1A526, 0x5AE9A0,
+        0x74179E, 0x8F5B18, 0x79C214, 0x828E92, 0x95F10D, 0x6EBD8B, 0x982487,
+        0x636801, 0xC4D8FA, 0x3F947C, 0xC90D70, 0x3241F6, 0x253E69, 0xDE72EF,
+        0x28EBE3, 0xD3A765, 0xFD595B, 0x0615DD, 0xF08CD1, 0x0BC057, 0x1CBFC8,
+        0xE7F34E, 0x116A42, 0xEA26C4, 0x76E42A, 0x8DA8AC, 0x7B31A0, 0x807D26,
+        0x9702B9, 0x6C4E3F, 0x9AD733, 0x619BB5, 0x4F658B, 0xB4290D, 0x42B001,
+        0xB9FC87, 0xAE8318, 0x55CF9E, 0xA35692, 0x581A14, 0xFFAAEF, 0x04E669,
+        0xF27F65, 0x0933E3, 0x1E4C7C, 0xE500FA, 0x1399F6, 0xE8D570, 0xC62B4E,
+        0x3D67C8, 0xCBFEC4, 0x30B242, 0x27CDDD, 0xDC815B, 0x2A1857, 0xD154D1,
+        0x9F3526, 0x6479A0, 0x92E0AC, 0x69AC2A, 0x7ED3B5, 0x859F33, 0x73063F,
+        0x884AB9, 0xA6B487, 0x5DF801, 0xAB610D, 0x502D8B, 0x475214, 0xBC1E92,
+        0x4A879E, 0xB1CB18, 0x167BE3, 0xED3765, 0x1BAE69, 0xE0E2EF, 0xF79D70,
+        0x0CD1F6, 0xFA48FA, 0x01047C, 0x2FFA42, 0xD4B6C4, 0x222FC8, 0xD9634E,
+        0xCE1CD1, 0x355057, 0xC3C95B, 0x3885DD, 0x000001,
+    },
+    [AV_CRC_32_IEEE] = {
+        0x00000000, 0xB71DC104, 0x6E3B8209, 0xD926430D, 0xDC760413, 0x6B6BC517,
+        0xB24D861A, 0x0550471E, 0xB8ED0826, 0x0FF0C922, 0xD6D68A2F, 0x61CB4B2B,
+        0x649B0C35, 0xD386CD31, 0x0AA08E3C, 0xBDBD4F38, 0x70DB114C, 0xC7C6D048,
+        0x1EE09345, 0xA9FD5241, 0xACAD155F, 0x1BB0D45B, 0xC2969756, 0x758B5652,
+        0xC836196A, 0x7F2BD86E, 0xA60D9B63, 0x11105A67, 0x14401D79, 0xA35DDC7D,
+        0x7A7B9F70, 0xCD665E74, 0xE0B62398, 0x57ABE29C, 0x8E8DA191, 0x39906095,
+        0x3CC0278B, 0x8BDDE68F, 0x52FBA582, 0xE5E66486, 0x585B2BBE, 0xEF46EABA,
+        0x3660A9B7, 0x817D68B3, 0x842D2FAD, 0x3330EEA9, 0xEA16ADA4, 0x5D0B6CA0,
+        0x906D32D4, 0x2770F3D0, 0xFE56B0DD, 0x494B71D9, 0x4C1B36C7, 0xFB06F7C3,
+        0x2220B4CE, 0x953D75CA, 0x28803AF2, 0x9F9DFBF6, 0x46BBB8FB, 0xF1A679FF,
+        0xF4F63EE1, 0x43EBFFE5, 0x9ACDBCE8, 0x2DD07DEC, 0x77708634, 0xC06D4730,
+        0x194B043D, 0xAE56C539, 0xAB068227, 0x1C1B4323, 0xC53D002E, 0x7220C12A,
+        0xCF9D8E12, 0x78804F16, 0xA1A60C1B, 0x16BBCD1F, 0x13EB8A01, 0xA4F64B05,
+        0x7DD00808, 0xCACDC90C, 0x07AB9778, 0xB0B6567C, 0x69901571, 0xDE8DD475,
+        0xDBDD936B, 0x6CC0526F, 0xB5E61162, 0x02FBD066, 0xBF469F5E, 0x085B5E5A,
+        0xD17D1D57, 0x6660DC53, 0x63309B4D, 0xD42D5A49, 0x0D0B1944, 0xBA16D840,
+        0x97C6A5AC, 0x20DB64A8, 0xF9FD27A5, 0x4EE0E6A1, 0x4BB0A1BF, 0xFCAD60BB,
+        0x258B23B6, 0x9296E2B2, 0x2F2BAD8A, 0x98366C8E, 0x41102F83, 0xF60DEE87,
+        0xF35DA999, 0x4440689D, 0x9D662B90, 0x2A7BEA94, 0xE71DB4E0, 0x500075E4,
+        0x892636E9, 0x3E3BF7ED, 0x3B6BB0F3, 0x8C7671F7, 0x555032FA, 0xE24DF3FE,
+        0x5FF0BCC6, 0xE8ED7DC2, 0x31CB3ECF, 0x86D6FFCB, 0x8386B8D5, 0x349B79D1,
+        0xEDBD3ADC, 0x5AA0FBD8, 0xEEE00C69, 0x59FDCD6D, 0x80DB8E60, 0x37C64F64,
+        0x3296087A, 0x858BC97E, 0x5CAD8A73, 0xEBB04B77, 0x560D044F, 0xE110C54B,
+        0x38368646, 0x8F2B4742, 0x8A7B005C, 0x3D66C158, 0xE4408255, 0x535D4351,
+        0x9E3B1D25, 0x2926DC21, 0xF0009F2C, 0x471D5E28, 0x424D1936, 0xF550D832,
+        0x2C769B3F, 0x9B6B5A3B, 0x26D61503, 0x91CBD407, 0x48ED970A, 0xFFF0560E,
+        0xFAA01110, 0x4DBDD014, 0x949B9319, 0x2386521D, 0x0E562FF1, 0xB94BEEF5,
+        0x606DADF8, 0xD7706CFC, 0xD2202BE2, 0x653DEAE6, 0xBC1BA9EB, 0x0B0668EF,
+        0xB6BB27D7, 0x01A6E6D3, 0xD880A5DE, 0x6F9D64DA, 0x6ACD23C4, 0xDDD0E2C0,
+        0x04F6A1CD, 0xB3EB60C9, 0x7E8D3EBD, 0xC990FFB9, 0x10B6BCB4, 0xA7AB7DB0,
+        0xA2FB3AAE, 0x15E6FBAA, 0xCCC0B8A7, 0x7BDD79A3, 0xC660369B, 0x717DF79F,
+        0xA85BB492, 0x1F467596, 0x1A163288, 0xAD0BF38C, 0x742DB081, 0xC3307185,
+        0x99908A5D, 0x2E8D4B59, 0xF7AB0854, 0x40B6C950, 0x45E68E4E, 0xF2FB4F4A,
+        0x2BDD0C47, 0x9CC0CD43, 0x217D827B, 0x9660437F, 0x4F460072, 0xF85BC176,
+        0xFD0B8668, 0x4A16476C, 0x93300461, 0x242DC565, 0xE94B9B11, 0x5E565A15,
+        0x87701918, 0x306DD81C, 0x353D9F02, 0x82205E06, 0x5B061D0B, 0xEC1BDC0F,
+        0x51A69337, 0xE6BB5233, 0x3F9D113E, 0x8880D03A, 0x8DD09724, 0x3ACD5620,
+        0xE3EB152D, 0x54F6D429, 0x7926A9C5, 0xCE3B68C1, 0x171D2BCC, 0xA000EAC8,
+        0xA550ADD6, 0x124D6CD2, 0xCB6B2FDF, 0x7C76EEDB, 0xC1CBA1E3, 0x76D660E7,
+        0xAFF023EA, 0x18EDE2EE, 0x1DBDA5F0, 0xAAA064F4, 0x738627F9, 0xC49BE6FD,
+        0x09FDB889, 0xBEE0798D, 0x67C63A80, 0xD0DBFB84, 0xD58BBC9A, 0x62967D9E,
+        0xBBB03E93, 0x0CADFF97, 0xB110B0AF, 0x060D71AB, 0xDF2B32A6, 0x6836F3A2,
+        0x6D66B4BC, 0xDA7B75B8, 0x035D36B5, 0xB440F7B1, 0x00000001
+    },
+    [AV_CRC_32_IEEE_LE] = {
+        0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F,
+        0xE963A535, 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
+        0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2,
+        0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
+        0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9,
+        0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
+        0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C,
+        0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
+        0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423,
+        0xCFBA9599, 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
+        0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190, 0x01DB7106,
+        0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
+        0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D,
+        0x91646C97, 0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
+        0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950,
+        0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
+        0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7,
+        0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
+        0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA,
+        0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+        0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81,
+        0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
+        0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84,
+        0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
+        0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB,
+        0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
+        0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8, 0xA1D1937E,
+        0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
+        0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55,
+        0x316E8EEF, 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
+        0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28,
+        0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
+        0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F,
+        0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
+        0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242,
+        0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
+        0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69,
+        0x616BFFD3, 0x166CCF45, 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
+        0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC,
+        0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+        0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693,
+        0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
+        0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D, 0x00000001
+    },
+    [AV_CRC_16_ANSI_LE] = {
+        0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241,
+        0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440,
+        0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40,
+        0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841,
+        0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40,
+        0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41,
+        0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641,
+        0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040,
+        0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240,
+        0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441,
+        0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41,
+        0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840,
+        0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41,
+        0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40,
+        0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640,
+        0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041,
+        0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240,
+        0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441,
+        0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41,
+        0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840,
+        0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41,
+        0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40,
+        0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640,
+        0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041,
+        0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241,
+        0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440,
+        0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40,
+        0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841,
+        0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40,
+        0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41,
+        0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641,
+        0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040,
+        0x0001
+    },
+};
+#else
+#if CONFIG_SMALL
+#define CRC_TABLE_SIZE 257
+#else
+#define CRC_TABLE_SIZE 1024
+#endif
+static AVCRC av_crc_table[AV_CRC_MAX][CRC_TABLE_SIZE];
+
+#define DECLARE_CRC_INIT_TABLE_ONCE(id, le, bits, poly)                                       \
+static AVOnce id ## _once_control = AV_ONCE_INIT;                                             \
+static void id ## _init_table_once(void)                                                      \
+{                                                                                             \
+    av_assert0(av_crc_init(av_crc_table[id], le, bits, poly, sizeof(av_crc_table[id])) >= 0); \
+}
+
+#define CRC_INIT_TABLE_ONCE(id) ff_thread_once(&id ## _once_control, id ## _init_table_once)
+
+DECLARE_CRC_INIT_TABLE_ONCE(AV_CRC_8_ATM,      0,  8,       0x07)
+DECLARE_CRC_INIT_TABLE_ONCE(AV_CRC_8_EBU,      0,  8,       0x1D)
+DECLARE_CRC_INIT_TABLE_ONCE(AV_CRC_16_ANSI,    0, 16,     0x8005)
+DECLARE_CRC_INIT_TABLE_ONCE(AV_CRC_16_CCITT,   0, 16,     0x1021)
+DECLARE_CRC_INIT_TABLE_ONCE(AV_CRC_24_IEEE,    0, 24,   0x864CFB)
+DECLARE_CRC_INIT_TABLE_ONCE(AV_CRC_32_IEEE,    0, 32, 0x04C11DB7)
+DECLARE_CRC_INIT_TABLE_ONCE(AV_CRC_32_IEEE_LE, 1, 32, 0xEDB88320)
+DECLARE_CRC_INIT_TABLE_ONCE(AV_CRC_16_ANSI_LE, 1, 16,     0xA001)
+#endif
+
+int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size)
+{
+    unsigned i, j;
+    uint32_t c;
+
+    if (bits < 8 || bits > 32 || poly >= (1LL << bits))
+        return AVERROR(EINVAL);
+    if (ctx_size != sizeof(AVCRC) * 257 && ctx_size != sizeof(AVCRC) * 1024)
+        return AVERROR(EINVAL);
+
+    for (i = 0; i < 256; i++) {
+        if (le) {
+            for (c = i, j = 0; j < 8; j++)
+                c = (c >> 1) ^ (poly & (-(c & 1)));
+            ctx[i] = c;
+        } else {
+            for (c = i << 24, j = 0; j < 8; j++)
+                c = (c << 1) ^ ((poly << (32 - bits)) & (((int32_t) c) >> 31));
+            ctx[i] = av_bswap32(c);
+        }
+    }
+    ctx[256] = 1;
+#if !CONFIG_SMALL
+    if (ctx_size >= sizeof(AVCRC) * 1024)
+        for (i = 0; i < 256; i++)
+            for (j = 0; j < 3; j++)
+                ctx[256 * (j + 1) + i] =
+                    (ctx[256 * j + i] >> 8) ^ ctx[ctx[256 * j + i] & 0xFF];
+#endif
+
+    return 0;
+}
+
+const AVCRC *av_crc_get_table(AVCRCId crc_id)
+{
+#if !CONFIG_HARDCODED_TABLES
+    switch (crc_id) {
+    case AV_CRC_8_ATM:      CRC_INIT_TABLE_ONCE(AV_CRC_8_ATM); break;
+    case AV_CRC_8_EBU:      CRC_INIT_TABLE_ONCE(AV_CRC_8_EBU); break;
+    case AV_CRC_16_ANSI:    CRC_INIT_TABLE_ONCE(AV_CRC_16_ANSI); break;
+    case AV_CRC_16_CCITT:   CRC_INIT_TABLE_ONCE(AV_CRC_16_CCITT); break;
+    case AV_CRC_24_IEEE:    CRC_INIT_TABLE_ONCE(AV_CRC_24_IEEE); break;
+    case AV_CRC_32_IEEE:    CRC_INIT_TABLE_ONCE(AV_CRC_32_IEEE); break;
+    case AV_CRC_32_IEEE_LE: CRC_INIT_TABLE_ONCE(AV_CRC_32_IEEE_LE); break;
+    case AV_CRC_16_ANSI_LE: CRC_INIT_TABLE_ONCE(AV_CRC_16_ANSI_LE); break;
+    default: av_assert0(0);
+    }
+#endif
+    return av_crc_table[crc_id];
+}
+
+uint32_t av_crc(const AVCRC *ctx, uint32_t crc,
+                const uint8_t *buffer, size_t length)
+{
+    const uint8_t *end = buffer + length;
+
+#if !CONFIG_SMALL
+    if (!ctx[256]) {
+        while (((intptr_t) buffer & 3) && buffer < end)
+            crc = ctx[((uint8_t) crc) ^ *buffer++] ^ (crc >> 8);
+
+        while (buffer < end - 3) {
+            crc ^= av_le2ne32(*(const uint32_t *) buffer); buffer += 4;
+            crc = ctx[3 * 256 + ( crc        & 0xFF)] ^
+                  ctx[2 * 256 + ((crc >> 8 ) & 0xFF)] ^
+                  ctx[1 * 256 + ((crc >> 16) & 0xFF)] ^
+                  ctx[0 * 256 + ((crc >> 24)       )];
+        }
+    }
+#endif
+    while (buffer < end)
+        crc = ctx[((uint8_t) crc) ^ *buffer++] ^ (crc >> 8);
+
+    return crc;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/crc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/crc.h
new file mode 100644
index 000000000..47e22b4c7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/crc.h
@@ -0,0 +1,100 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu_crc32
+ * Public header for CRC hash function implementation.
+ */
+
+#ifndef AVUTIL_CRC_H
+#define AVUTIL_CRC_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include "attributes.h"
+#include "version.h"
+
+/**
+ * @defgroup lavu_crc32 CRC
+ * @ingroup lavu_hash
+ * CRC (Cyclic Redundancy Check) hash function implementation.
+ *
+ * This module supports numerous CRC polynomials, in addition to the most
+ * widely used CRC-32-IEEE. See @ref AVCRCId for a list of available
+ * polynomials.
+ *
+ * @{
+ */
+
+typedef uint32_t AVCRC;
+
+typedef enum {
+    AV_CRC_8_ATM,
+    AV_CRC_16_ANSI,
+    AV_CRC_16_CCITT,
+    AV_CRC_32_IEEE,
+    AV_CRC_32_IEEE_LE,  /*< reversed bitorder version of AV_CRC_32_IEEE */
+    AV_CRC_16_ANSI_LE,  /*< reversed bitorder version of AV_CRC_16_ANSI */
+    AV_CRC_24_IEEE,
+    AV_CRC_8_EBU,
+    AV_CRC_MAX,         /*< Not part of public API! Do not use outside libavutil. */
+}AVCRCId;
+
+/**
+ * Initialize a CRC table.
+ * @param ctx must be an array of size sizeof(AVCRC)*257 or sizeof(AVCRC)*1024
+ * @param le If 1, the lowest bit represents the coefficient for the highest
+ *           exponent of the corresponding polynomial (both for poly and
+ *           actual CRC).
+ *           If 0, you must swap the CRC parameter and the result of av_crc
+ *           if you need the standard representation (can be simplified in
+ *           most cases to e.g. bswap16):
+ *           av_bswap32(crc << (32-bits))
+ * @param bits number of bits for the CRC
+ * @param poly generator polynomial without the x**bits coefficient, in the
+ *             representation as specified by le
+ * @param ctx_size size of ctx in bytes
+ * @return <0 on failure
+ */
+int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size);
+
+/**
+ * Get an initialized standard CRC table.
+ * @param crc_id ID of a standard CRC
+ * @return a pointer to the CRC table or NULL on failure
+ */
+const AVCRC *av_crc_get_table(AVCRCId crc_id);
+
+/**
+ * Calculate the CRC of a block.
+ * @param crc CRC of previous blocks if any or initial value for CRC
+ * @return CRC updated with the data from the given block
+ *
+ * @see av_crc_init() "le" parameter
+ */
+uint32_t av_crc(const AVCRC *ctx, uint32_t crc,
+                const uint8_t *buffer, size_t length) av_pure;
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_CRC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/des.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/des.c
new file mode 100644
index 000000000..695766618
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/des.c
@@ -0,0 +1,331 @@
+/*
+ * DES encryption/decryption
+ * Copyright (c) 2007 Reimar Doeffinger
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "avutil.h"
+#include "common.h"
+#include "intreadwrite.h"
+#include "mem.h"
+#include "des.h"
+
+#define T(a, b, c, d, e, f, g, h) 64 - a, 64 - b, 64 - c, 64 - d, 64 - e, 64 - f, 64 - g, 64 - h
+static const uint8_t IP_shuffle[] = {
+    T(58, 50, 42, 34, 26, 18, 10, 2),
+    T(60, 52, 44, 36, 28, 20, 12, 4),
+    T(62, 54, 46, 38, 30, 22, 14, 6),
+    T(64, 56, 48, 40, 32, 24, 16, 8),
+    T(57, 49, 41, 33, 25, 17,  9, 1),
+    T(59, 51, 43, 35, 27, 19, 11, 3),
+    T(61, 53, 45, 37, 29, 21, 13, 5),
+    T(63, 55, 47, 39, 31, 23, 15, 7)
+};
+#undef T
+
+#if CONFIG_SMALL || defined(GENTABLES)
+#define T(a, b, c, d) 32 - a, 32 - b, 32 - c, 32 - d
+static const uint8_t P_shuffle[] = {
+    T(16,  7, 20, 21),
+    T(29, 12, 28, 17),
+    T( 1, 15, 23, 26),
+    T( 5, 18, 31, 10),
+    T( 2,  8, 24, 14),
+    T(32, 27,  3,  9),
+    T(19, 13, 30,  6),
+    T(22, 11,  4, 25)
+};
+#undef T
+#endif
+
+#define T(a, b, c, d, e, f, g) 64 - a, 64 - b, 64 - c, 64 - d, 64 - e, 64 - f, 64 - g
+static const uint8_t PC1_shuffle[] = {
+    T(57, 49, 41, 33, 25, 17,  9),
+    T( 1, 58, 50, 42, 34, 26, 18),
+    T(10,  2, 59, 51, 43, 35, 27),
+    T(19, 11,  3, 60, 52, 44, 36),
+    T(63, 55, 47, 39, 31, 23, 15),
+    T( 7, 62, 54, 46, 38, 30, 22),
+    T(14,  6, 61, 53, 45, 37, 29),
+    T(21, 13,  5, 28, 20, 12,  4)
+};
+#undef T
+
+#define T(a, b, c, d, e, f) 56 - a, 56 - b, 56 - c, 56 - d, 56 - e, 56 - f
+static const uint8_t PC2_shuffle[] = {
+    T(14, 17, 11, 24,  1,  5),
+    T( 3, 28, 15,  6, 21, 10),
+    T(23, 19, 12,  4, 26,  8),
+    T(16,  7, 27, 20, 13,  2),
+    T(41, 52, 31, 37, 47, 55),
+    T(30, 40, 51, 45, 33, 48),
+    T(44, 49, 39, 56, 34, 53),
+    T(46, 42, 50, 36, 29, 32)
+};
+#undef T
+
+#if CONFIG_SMALL
+static const uint8_t S_boxes[8][32] = {
+    { 0x0e, 0xf4, 0x7d, 0x41, 0xe2, 0x2f, 0xdb, 0x18, 0xa3, 0x6a, 0xc6, 0xbc, 0x95, 0x59, 0x30, 0x87,
+      0xf4, 0xc1, 0x8e, 0x28, 0x4d, 0x96, 0x12, 0x7b, 0x5f, 0xbc, 0x39, 0xe7, 0xa3, 0x0a, 0x65, 0xd0, },
+    { 0x3f, 0xd1, 0x48, 0x7e, 0xf6, 0x2b, 0x83, 0xe4, 0xc9, 0x07, 0x12, 0xad, 0x6c, 0x90, 0xb5, 0x5a,
+      0xd0, 0x8e, 0xa7, 0x1b, 0x3a, 0xf4, 0x4d, 0x21, 0xb5, 0x68, 0x7c, 0xc6, 0x09, 0x53, 0xe2, 0x9f, },
+    { 0xda, 0x70, 0x09, 0x9e, 0x36, 0x43, 0x6f, 0xa5, 0x21, 0x8d, 0x5c, 0xe7, 0xcb, 0xb4, 0xf2, 0x18,
+      0x1d, 0xa6, 0xd4, 0x09, 0x68, 0x9f, 0x83, 0x70, 0x4b, 0xf1, 0xe2, 0x3c, 0xb5, 0x5a, 0x2e, 0xc7, },
+    { 0xd7, 0x8d, 0xbe, 0x53, 0x60, 0xf6, 0x09, 0x3a, 0x41, 0x72, 0x28, 0xc5, 0x1b, 0xac, 0xe4, 0x9f,
+      0x3a, 0xf6, 0x09, 0x60, 0xac, 0x1b, 0xd7, 0x8d, 0x9f, 0x41, 0x53, 0xbe, 0xc5, 0x72, 0x28, 0xe4, },
+    { 0xe2, 0xbc, 0x24, 0xc1, 0x47, 0x7a, 0xdb, 0x16, 0x58, 0x05, 0xf3, 0xaf, 0x3d, 0x90, 0x8e, 0x69,
+      0xb4, 0x82, 0xc1, 0x7b, 0x1a, 0xed, 0x27, 0xd8, 0x6f, 0xf9, 0x0c, 0x95, 0xa6, 0x43, 0x50, 0x3e, },
+    { 0xac, 0xf1, 0x4a, 0x2f, 0x79, 0xc2, 0x96, 0x58, 0x60, 0x1d, 0xd3, 0xe4, 0x0e, 0xb7, 0x35, 0x8b,
+      0x49, 0x3e, 0x2f, 0xc5, 0x92, 0x58, 0xfc, 0xa3, 0xb7, 0xe0, 0x14, 0x7a, 0x61, 0x0d, 0x8b, 0xd6, },
+    { 0xd4, 0x0b, 0xb2, 0x7e, 0x4f, 0x90, 0x18, 0xad, 0xe3, 0x3c, 0x59, 0xc7, 0x25, 0xfa, 0x86, 0x61,
+      0x61, 0xb4, 0xdb, 0x8d, 0x1c, 0x43, 0xa7, 0x7e, 0x9a, 0x5f, 0x06, 0xf8, 0xe0, 0x25, 0x39, 0xc2, },
+    { 0x1d, 0xf2, 0xd8, 0x84, 0xa6, 0x3f, 0x7b, 0x41, 0xca, 0x59, 0x63, 0xbe, 0x05, 0xe0, 0x9c, 0x27,
+      0x27, 0x1b, 0xe4, 0x71, 0x49, 0xac, 0x8e, 0xd2, 0xf0, 0xc6, 0x9a, 0x0d, 0x3f, 0x53, 0x65, 0xb8,
+    }
+};
+#else
+/**
+ * This table contains the results of applying both the S-box and P-shuffle.
+ * It can be regenerated by compiling tests/des.c with "-DCONFIG_SMALL -DGENTABLES".
+ */
+static const uint32_t S_boxes_P_shuffle[8][64] = {
+    { 0x00808200, 0x00000000, 0x00008000, 0x00808202, 0x00808002, 0x00008202, 0x00000002, 0x00008000,
+      0x00000200, 0x00808200, 0x00808202, 0x00000200, 0x00800202, 0x00808002, 0x00800000, 0x00000002,
+      0x00000202, 0x00800200, 0x00800200, 0x00008200, 0x00008200, 0x00808000, 0x00808000, 0x00800202,
+      0x00008002, 0x00800002, 0x00800002, 0x00008002, 0x00000000, 0x00000202, 0x00008202, 0x00800000,
+      0x00008000, 0x00808202, 0x00000002, 0x00808000, 0x00808200, 0x00800000, 0x00800000, 0x00000200,
+      0x00808002, 0x00008000, 0x00008200, 0x00800002, 0x00000200, 0x00000002, 0x00800202, 0x00008202,
+      0x00808202, 0x00008002, 0x00808000, 0x00800202, 0x00800002, 0x00000202, 0x00008202, 0x00808200,
+      0x00000202, 0x00800200, 0x00800200, 0x00000000, 0x00008002, 0x00008200, 0x00000000, 0x00808002, },
+    { 0x40084010, 0x40004000, 0x00004000, 0x00084010, 0x00080000, 0x00000010, 0x40080010, 0x40004010,
+      0x40000010, 0x40084010, 0x40084000, 0x40000000, 0x40004000, 0x00080000, 0x00000010, 0x40080010,
+      0x00084000, 0x00080010, 0x40004010, 0x00000000, 0x40000000, 0x00004000, 0x00084010, 0x40080000,
+      0x00080010, 0x40000010, 0x00000000, 0x00084000, 0x00004010, 0x40084000, 0x40080000, 0x00004010,
+      0x00000000, 0x00084010, 0x40080010, 0x00080000, 0x40004010, 0x40080000, 0x40084000, 0x00004000,
+      0x40080000, 0x40004000, 0x00000010, 0x40084010, 0x00084010, 0x00000010, 0x00004000, 0x40000000,
+      0x00004010, 0x40084000, 0x00080000, 0x40000010, 0x00080010, 0x40004010, 0x40000010, 0x00080010,
+      0x00084000, 0x00000000, 0x40004000, 0x00004010, 0x40000000, 0x40080010, 0x40084010, 0x00084000, },
+    { 0x00000104, 0x04010100, 0x00000000, 0x04010004, 0x04000100, 0x00000000, 0x00010104, 0x04000100,
+      0x00010004, 0x04000004, 0x04000004, 0x00010000, 0x04010104, 0x00010004, 0x04010000, 0x00000104,
+      0x04000000, 0x00000004, 0x04010100, 0x00000100, 0x00010100, 0x04010000, 0x04010004, 0x00010104,
+      0x04000104, 0x00010100, 0x00010000, 0x04000104, 0x00000004, 0x04010104, 0x00000100, 0x04000000,
+      0x04010100, 0x04000000, 0x00010004, 0x00000104, 0x00010000, 0x04010100, 0x04000100, 0x00000000,
+      0x00000100, 0x00010004, 0x04010104, 0x04000100, 0x04000004, 0x00000100, 0x00000000, 0x04010004,
+      0x04000104, 0x00010000, 0x04000000, 0x04010104, 0x00000004, 0x00010104, 0x00010100, 0x04000004,
+      0x04010000, 0x04000104, 0x00000104, 0x04010000, 0x00010104, 0x00000004, 0x04010004, 0x00010100, },
+    { 0x80401000, 0x80001040, 0x80001040, 0x00000040, 0x00401040, 0x80400040, 0x80400000, 0x80001000,
+      0x00000000, 0x00401000, 0x00401000, 0x80401040, 0x80000040, 0x00000000, 0x00400040, 0x80400000,
+      0x80000000, 0x00001000, 0x00400000, 0x80401000, 0x00000040, 0x00400000, 0x80001000, 0x00001040,
+      0x80400040, 0x80000000, 0x00001040, 0x00400040, 0x00001000, 0x00401040, 0x80401040, 0x80000040,
+      0x00400040, 0x80400000, 0x00401000, 0x80401040, 0x80000040, 0x00000000, 0x00000000, 0x00401000,
+      0x00001040, 0x00400040, 0x80400040, 0x80000000, 0x80401000, 0x80001040, 0x80001040, 0x00000040,
+      0x80401040, 0x80000040, 0x80000000, 0x00001000, 0x80400000, 0x80001000, 0x00401040, 0x80400040,
+      0x80001000, 0x00001040, 0x00400000, 0x80401000, 0x00000040, 0x00400000, 0x00001000, 0x00401040, },
+    { 0x00000080, 0x01040080, 0x01040000, 0x21000080, 0x00040000, 0x00000080, 0x20000000, 0x01040000,
+      0x20040080, 0x00040000, 0x01000080, 0x20040080, 0x21000080, 0x21040000, 0x00040080, 0x20000000,
+      0x01000000, 0x20040000, 0x20040000, 0x00000000, 0x20000080, 0x21040080, 0x21040080, 0x01000080,
+      0x21040000, 0x20000080, 0x00000000, 0x21000000, 0x01040080, 0x01000000, 0x21000000, 0x00040080,
+      0x00040000, 0x21000080, 0x00000080, 0x01000000, 0x20000000, 0x01040000, 0x21000080, 0x20040080,
+      0x01000080, 0x20000000, 0x21040000, 0x01040080, 0x20040080, 0x00000080, 0x01000000, 0x21040000,
+      0x21040080, 0x00040080, 0x21000000, 0x21040080, 0x01040000, 0x00000000, 0x20040000, 0x21000000,
+      0x00040080, 0x01000080, 0x20000080, 0x00040000, 0x00000000, 0x20040000, 0x01040080, 0x20000080, },
+    { 0x10000008, 0x10200000, 0x00002000, 0x10202008, 0x10200000, 0x00000008, 0x10202008, 0x00200000,
+      0x10002000, 0x00202008, 0x00200000, 0x10000008, 0x00200008, 0x10002000, 0x10000000, 0x00002008,
+      0x00000000, 0x00200008, 0x10002008, 0x00002000, 0x00202000, 0x10002008, 0x00000008, 0x10200008,
+      0x10200008, 0x00000000, 0x00202008, 0x10202000, 0x00002008, 0x00202000, 0x10202000, 0x10000000,
+      0x10002000, 0x00000008, 0x10200008, 0x00202000, 0x10202008, 0x00200000, 0x00002008, 0x10000008,
+      0x00200000, 0x10002000, 0x10000000, 0x00002008, 0x10000008, 0x10202008, 0x00202000, 0x10200000,
+      0x00202008, 0x10202000, 0x00000000, 0x10200008, 0x00000008, 0x00002000, 0x10200000, 0x00202008,
+      0x00002000, 0x00200008, 0x10002008, 0x00000000, 0x10202000, 0x10000000, 0x00200008, 0x10002008, },
+    { 0x00100000, 0x02100001, 0x02000401, 0x00000000, 0x00000400, 0x02000401, 0x00100401, 0x02100400,
+      0x02100401, 0x00100000, 0x00000000, 0x02000001, 0x00000001, 0x02000000, 0x02100001, 0x00000401,
+      0x02000400, 0x00100401, 0x00100001, 0x02000400, 0x02000001, 0x02100000, 0x02100400, 0x00100001,
+      0x02100000, 0x00000400, 0x00000401, 0x02100401, 0x00100400, 0x00000001, 0x02000000, 0x00100400,
+      0x02000000, 0x00100400, 0x00100000, 0x02000401, 0x02000401, 0x02100001, 0x02100001, 0x00000001,
+      0x00100001, 0x02000000, 0x02000400, 0x00100000, 0x02100400, 0x00000401, 0x00100401, 0x02100400,
+      0x00000401, 0x02000001, 0x02100401, 0x02100000, 0x00100400, 0x00000000, 0x00000001, 0x02100401,
+      0x00000000, 0x00100401, 0x02100000, 0x00000400, 0x02000001, 0x02000400, 0x00000400, 0x00100001, },
+    { 0x08000820, 0x00000800, 0x00020000, 0x08020820, 0x08000000, 0x08000820, 0x00000020, 0x08000000,
+      0x00020020, 0x08020000, 0x08020820, 0x00020800, 0x08020800, 0x00020820, 0x00000800, 0x00000020,
+      0x08020000, 0x08000020, 0x08000800, 0x00000820, 0x00020800, 0x00020020, 0x08020020, 0x08020800,
+      0x00000820, 0x00000000, 0x00000000, 0x08020020, 0x08000020, 0x08000800, 0x00020820, 0x00020000,
+      0x00020820, 0x00020000, 0x08020800, 0x00000800, 0x00000020, 0x08020020, 0x00000800, 0x00020820,
+      0x08000800, 0x00000020, 0x08000020, 0x08020000, 0x08020020, 0x08000000, 0x00020000, 0x08000820,
+      0x00000000, 0x08020820, 0x00020020, 0x08000020, 0x08020000, 0x08000800, 0x08000820, 0x00000000,
+      0x08020820, 0x00020800, 0x00020800, 0x00000820, 0x00000820, 0x00020020, 0x08000000, 0x08020800, },
+};
+#endif
+
+static uint64_t shuffle(uint64_t in, const uint8_t *shuffle, int shuffle_len)
+{
+    int i;
+    uint64_t res = 0;
+    for (i = 0; i < shuffle_len; i++)
+        res += res + ((in >> *shuffle++) & 1);
+    return res;
+}
+
+static uint64_t shuffle_inv(uint64_t in, const uint8_t *shuffle, int shuffle_len)
+{
+    int i;
+    uint64_t res = 0;
+    shuffle += shuffle_len - 1;
+    for (i = 0; i < shuffle_len; i++) {
+        res |= (in & 1) << *shuffle--;
+        in >>= 1;
+    }
+    return res;
+}
+
+static uint32_t f_func(uint32_t r, uint64_t k)
+{
+    int i;
+    uint32_t out = 0;
+    // rotate to get first part of E-shuffle in the lowest 6 bits
+    r = (r << 1) | (r >> 31);
+    // apply S-boxes, those compress the data again from 8 * 6 to 8 * 4 bits
+    for (i = 7; i >= 0; i--) {
+        uint8_t tmp = (r ^ k) & 0x3f;
+#if CONFIG_SMALL
+        uint8_t v = S_boxes[i][tmp >> 1];
+        if (tmp & 1)
+            v >>= 4;
+        out = (out >> 4) | (v << 28);
+#else
+        out |= S_boxes_P_shuffle[i][tmp];
+#endif
+        // get next 6 bits of E-shuffle and round key k into the lowest bits
+        r   = (r >> 4) | (r << 28);
+        k >>= 6;
+    }
+#if CONFIG_SMALL
+    out = shuffle(out, P_shuffle, sizeof(P_shuffle));
+#endif
+    return out;
+}
+
+/**
+ * @brief rotate the two halves of the expanded 56 bit key each 1 bit left
+ *
+ * Note: the specification calls this "shift", so I kept it although
+ * it is confusing.
+ */
+static uint64_t key_shift_left(uint64_t CDn)
+{
+    uint64_t carries = (CDn >> 27) & 0x10000001;
+    CDn <<= 1;
+    CDn  &= ~0x10000001;
+    CDn  |= carries;
+    return CDn;
+}
+
+static void gen_roundkeys(uint64_t K[16], uint64_t key)
+{
+    int i;
+    // discard parity bits from key and shuffle it into C and D parts
+    uint64_t CDn = shuffle(key, PC1_shuffle, sizeof(PC1_shuffle));
+    // generate round keys
+    for (i = 0; i < 16; i++) {
+        CDn = key_shift_left(CDn);
+        if (i > 1 && i != 8 && i != 15)
+            CDn = key_shift_left(CDn);
+        K[i] = shuffle(CDn, PC2_shuffle, sizeof(PC2_shuffle));
+    }
+}
+
+static uint64_t des_encdec(uint64_t in, uint64_t K[16], int decrypt)
+{
+    int i;
+    // used to apply round keys in reverse order for decryption
+    decrypt = decrypt ? 15 : 0;
+    // shuffle irrelevant to security but to ease hardware implementations
+    in = shuffle(in, IP_shuffle, sizeof(IP_shuffle));
+    for (i = 0; i < 16; i++) {
+        uint32_t f_res;
+        f_res = f_func(in, K[decrypt ^ i]);
+        in    = (in << 32) | (in >> 32);
+        in   ^= f_res;
+    }
+    in = (in << 32) | (in >> 32);
+    // reverse shuffle used to ease hardware implementations
+    in = shuffle_inv(in, IP_shuffle, sizeof(IP_shuffle));
+    return in;
+}
+
+AVDES *av_des_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVDES));
+}
+
+int av_des_init(AVDES *d, const uint8_t *key, int key_bits, av_unused int decrypt) {
+    if (key_bits != 64 && key_bits != 192)
+        return AVERROR(EINVAL);
+    d->triple_des = key_bits > 64;
+    gen_roundkeys(d->round_keys[0], AV_RB64(key));
+    if (d->triple_des) {
+        gen_roundkeys(d->round_keys[1], AV_RB64(key +  8));
+        gen_roundkeys(d->round_keys[2], AV_RB64(key + 16));
+    }
+    return 0;
+}
+
+static void av_des_crypt_mac(AVDES *d, uint8_t *dst, const uint8_t *src,
+                             int count, uint8_t *iv, int decrypt, int mac)
+{
+    uint64_t iv_val = iv ? AV_RB64(iv) : 0;
+    while (count-- > 0) {
+        uint64_t dst_val;
+        uint64_t src_val = src ? AV_RB64(src) : 0;
+        if (decrypt) {
+            uint64_t tmp = src_val;
+            if (d->triple_des) {
+                src_val = des_encdec(src_val, d->round_keys[2], 1);
+                src_val = des_encdec(src_val, d->round_keys[1], 0);
+            }
+            dst_val = des_encdec(src_val, d->round_keys[0], 1) ^ iv_val;
+            iv_val  = iv ? tmp : 0;
+        } else {
+            dst_val = des_encdec(src_val ^ iv_val, d->round_keys[0], 0);
+            if (d->triple_des) {
+                dst_val = des_encdec(dst_val, d->round_keys[1], 1);
+                dst_val = des_encdec(dst_val, d->round_keys[2], 0);
+            }
+            iv_val = iv ? dst_val : 0;
+        }
+        AV_WB64(dst, dst_val);
+        src += 8;
+        if (!mac)
+            dst += 8;
+    }
+    if (iv)
+        AV_WB64(iv, iv_val);
+}
+
+void av_des_crypt(AVDES *d, uint8_t *dst, const uint8_t *src,
+                  int count, uint8_t *iv, int decrypt)
+{
+    av_des_crypt_mac(d, dst, src, count, iv, decrypt, 0);
+}
+
+void av_des_mac(AVDES *d, uint8_t *dst, const uint8_t *src, int count)
+{
+    av_des_crypt_mac(d, dst, src, count, (uint8_t[8]) { 0 }, 0, 1);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/des.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/des.h
new file mode 100644
index 000000000..4cf11f5bc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/des.h
@@ -0,0 +1,77 @@
+/*
+ * DES encryption/decryption
+ * Copyright (c) 2007 Reimar Doeffinger
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_DES_H
+#define AVUTIL_DES_H
+
+#include <stdint.h>
+
+/**
+ * @defgroup lavu_des DES
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+typedef struct AVDES {
+    uint64_t round_keys[3][16];
+    int triple_des;
+} AVDES;
+
+/**
+ * Allocate an AVDES context.
+ */
+AVDES *av_des_alloc(void);
+
+/**
+ * @brief Initializes an AVDES context.
+ *
+ * @param key_bits must be 64 or 192
+ * @param decrypt 0 for encryption/CBC-MAC, 1 for decryption
+ * @return zero on success, negative value otherwise
+ */
+int av_des_init(struct AVDES *d, const uint8_t *key, int key_bits, int decrypt);
+
+/**
+ * @brief Encrypts / decrypts using the DES algorithm.
+ *
+ * @param count number of 8 byte blocks
+ * @param dst destination array, can be equal to src, must be 8-byte aligned
+ * @param src source array, can be equal to dst, must be 8-byte aligned, may be NULL
+ * @param iv initialization vector for CBC mode, if NULL then ECB will be used,
+ *           must be 8-byte aligned
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_des_crypt(struct AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
+
+/**
+ * @brief Calculates CBC-MAC using the DES algorithm.
+ *
+ * @param count number of 8 byte blocks
+ * @param dst destination array, can be equal to src, must be 8-byte aligned
+ * @param src source array, can be equal to dst, must be 8-byte aligned, may be NULL
+ */
+void av_des_mac(struct AVDES *d, uint8_t *dst, const uint8_t *src, int count);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_DES_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/dict.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/dict.c
new file mode 100644
index 000000000..0ea71386e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/dict.c
@@ -0,0 +1,272 @@
+/*
+ * copyright (c) 2009 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <string.h>
+
+#include "avstring.h"
+#include "dict.h"
+#include "internal.h"
+#include "mem.h"
+#include "time_internal.h"
+#include "bprint.h"
+
+struct AVDictionary {
+    int count;
+    AVDictionaryEntry *elems;
+};
+
+int av_dict_count(const AVDictionary *m)
+{
+    return m ? m->count : 0;
+}
+
+AVDictionaryEntry *av_dict_get(const AVDictionary *m, const char *key,
+                               const AVDictionaryEntry *prev, int flags)
+{
+    unsigned int i, j;
+
+    if (!m)
+        return NULL;
+
+    if (prev)
+        i = prev - m->elems + 1;
+    else
+        i = 0;
+
+    for (; i < m->count; i++) {
+        const char *s = m->elems[i].key;
+        if (flags & AV_DICT_MATCH_CASE)
+            for (j = 0; s[j] == key[j] && key[j]; j++)
+                ;
+        else
+            for (j = 0; av_toupper(s[j]) == av_toupper(key[j]) && key[j]; j++)
+                ;
+        if (key[j])
+            continue;
+        if (s[j] && !(flags & AV_DICT_IGNORE_SUFFIX))
+            continue;
+        return &m->elems[i];
+    }
+    return NULL;
+}
+
+int av_dict_set(AVDictionary **pm, const char *key, const char *value,
+                int flags)
+{
+    AVDictionary *m = *pm;
+    AVDictionaryEntry *tag = NULL;
+    char *oldval = NULL, *copy_key = NULL, *copy_value = NULL;
+
+    if (!(flags & AV_DICT_MULTIKEY)) {
+        tag = av_dict_get(m, key, NULL, flags);
+    }
+    if (flags & AV_DICT_DONT_STRDUP_KEY)
+        copy_key = (void *)key;
+    else
+        copy_key = av_strdup(key);
+    if (flags & AV_DICT_DONT_STRDUP_VAL)
+        copy_value = (void *)value;
+    else if (copy_key)
+        copy_value = av_strdup(value);
+    if (!m)
+        m = *pm = av_mallocz(sizeof(*m));
+    if (!m || (key && !copy_key) || (value && !copy_value))
+        goto err_out;
+
+    if (tag) {
+        if (flags & AV_DICT_DONT_OVERWRITE) {
+            av_free(copy_key);
+            av_free(copy_value);
+            return 0;
+        }
+        if (flags & AV_DICT_APPEND)
+            oldval = tag->value;
+        else
+            av_free(tag->value);
+        av_free(tag->key);
+        *tag = m->elems[--m->count];
+    } else if (copy_value) {
+        AVDictionaryEntry *tmp = av_realloc(m->elems,
+                                            (m->count + 1) * sizeof(*m->elems));
+        if (!tmp)
+            goto err_out;
+        m->elems = tmp;
+    }
+    if (copy_value) {
+        m->elems[m->count].key = copy_key;
+        m->elems[m->count].value = copy_value;
+        if (oldval && flags & AV_DICT_APPEND) {
+            size_t len = strlen(oldval) + strlen(copy_value) + 1;
+            char *newval = av_mallocz(len);
+            if (!newval)
+                goto err_out;
+            av_strlcat(newval, oldval, len);
+            av_freep(&oldval);
+            av_strlcat(newval, copy_value, len);
+            m->elems[m->count].value = newval;
+            av_freep(&copy_value);
+        }
+        m->count++;
+    } else {
+        av_freep(&copy_key);
+    }
+    if (!m->count) {
+        av_freep(&m->elems);
+        av_freep(pm);
+    }
+
+    return 0;
+
+err_out:
+    if (m && !m->count) {
+        av_freep(&m->elems);
+        av_freep(pm);
+    }
+    av_free(copy_key);
+    av_free(copy_value);
+    return AVERROR(ENOMEM);
+}
+
+int av_dict_set_int(AVDictionary **pm, const char *key, int64_t value,
+                int flags)
+{
+    char valuestr[22];
+    snprintf(valuestr, sizeof(valuestr), "%"PRId64, value);
+    flags &= ~AV_DICT_DONT_STRDUP_VAL;
+    return av_dict_set(pm, key, valuestr, flags);
+}
+
+static int parse_key_value_pair(AVDictionary **pm, const char **buf,
+                                const char *key_val_sep, const char *pairs_sep,
+                                int flags)
+{
+    char *key = av_get_token(buf, key_val_sep);
+    char *val = NULL;
+    int ret;
+
+    if (key && *key && strspn(*buf, key_val_sep)) {
+        (*buf)++;
+        val = av_get_token(buf, pairs_sep);
+    }
+
+    if (key && *key && val && *val)
+        ret = av_dict_set(pm, key, val, flags);
+    else
+        ret = AVERROR(EINVAL);
+
+    av_freep(&key);
+    av_freep(&val);
+
+    return ret;
+}
+
+int av_dict_parse_string(AVDictionary **pm, const char *str,
+                         const char *key_val_sep, const char *pairs_sep,
+                         int flags)
+{
+    int ret;
+
+    if (!str)
+        return 0;
+
+    /* ignore STRDUP flags */
+    flags &= ~(AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
+
+    while (*str) {
+        if ((ret = parse_key_value_pair(pm, &str, key_val_sep, pairs_sep, flags)) < 0)
+            return ret;
+
+        if (*str)
+            str++;
+    }
+
+    return 0;
+}
+
+void av_dict_free(AVDictionary **pm)
+{
+    AVDictionary *m = *pm;
+
+    if (m) {
+        while (m->count--) {
+            av_freep(&m->elems[m->count].key);
+            av_freep(&m->elems[m->count].value);
+        }
+        av_freep(&m->elems);
+    }
+    av_freep(pm);
+}
+
+int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
+{
+    AVDictionaryEntry *t = NULL;
+
+    while ((t = av_dict_get(src, "", t, AV_DICT_IGNORE_SUFFIX))) {
+        int ret = av_dict_set(dst, t->key, t->value, flags);
+        if (ret < 0)
+            return ret;
+    }
+
+    return 0;
+}
+
+int av_dict_get_string(const AVDictionary *m, char **buffer,
+                       const char key_val_sep, const char pairs_sep)
+{
+    AVDictionaryEntry *t = NULL;
+    AVBPrint bprint;
+    int cnt = 0;
+    char special_chars[] = {pairs_sep, key_val_sep, '\0'};
+
+    if (!buffer || pairs_sep == '\0' || key_val_sep == '\0' || pairs_sep == key_val_sep ||
+        pairs_sep == '\\' || key_val_sep == '\\')
+        return AVERROR(EINVAL);
+
+    if (!av_dict_count(m)) {
+        *buffer = av_strdup("");
+        return *buffer ? 0 : AVERROR(ENOMEM);
+    }
+
+    av_bprint_init(&bprint, 64, AV_BPRINT_SIZE_UNLIMITED);
+    while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX))) {
+        if (cnt++)
+            av_bprint_append_data(&bprint, &pairs_sep, 1);
+        av_bprint_escape(&bprint, t->key, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
+        av_bprint_append_data(&bprint, &key_val_sep, 1);
+        av_bprint_escape(&bprint, t->value, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
+    }
+    return av_bprint_finalize(&bprint, buffer);
+}
+
+int avpriv_dict_set_timestamp(AVDictionary **dict, const char *key, int64_t timestamp)
+{
+    time_t seconds = timestamp / 1000000;
+    struct tm *ptm, tmbuf;
+    ptm = gmtime_r(&seconds, &tmbuf);
+    if (ptm) {
+        char buf[32];
+        if (!strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S", ptm))
+            return AVERROR_EXTERNAL;
+        av_strlcatf(buf, sizeof(buf), ".%06dZ", (int)(timestamp % 1000000));
+        return av_dict_set(dict, key, buf, 0);
+    } else {
+        return AVERROR_EXTERNAL;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/dict.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/dict.h
new file mode 100644
index 000000000..118f1f00e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/dict.h
@@ -0,0 +1,200 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Public dictionary API.
+ * @deprecated
+ *  AVDictionary is provided for compatibility with libav. It is both in
+ *  implementation as well as API inefficient. It does not scale and is
+ *  extremely slow with large dictionaries.
+ *  It is recommended that new code uses our tree container from tree.c/h
+ *  where applicable, which uses AVL trees to achieve O(log n) performance.
+ */
+
+#ifndef AVUTIL_DICT_H
+#define AVUTIL_DICT_H
+
+#include <stdint.h>
+
+#include "version.h"
+
+/**
+ * @addtogroup lavu_dict AVDictionary
+ * @ingroup lavu_data
+ *
+ * @brief Simple key:value store
+ *
+ * @{
+ * Dictionaries are used for storing key:value pairs. To create
+ * an AVDictionary, simply pass an address of a NULL pointer to
+ * av_dict_set(). NULL can be used as an empty dictionary wherever
+ * a pointer to an AVDictionary is required.
+ * Use av_dict_get() to retrieve an entry or iterate over all
+ * entries and finally av_dict_free() to free the dictionary
+ * and all its contents.
+ *
+ @code
+   AVDictionary *d = NULL;           // "create" an empty dictionary
+   AVDictionaryEntry *t = NULL;
+
+   av_dict_set(&d, "foo", "bar", 0); // add an entry
+
+   char *k = av_strdup("key");       // if your strings are already allocated,
+   char *v = av_strdup("value");     // you can avoid copying them like this
+   av_dict_set(&d, k, v, AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
+
+   while (t = av_dict_get(d, "", t, AV_DICT_IGNORE_SUFFIX)) {
+       <....>                             // iterate over all entries in d
+   }
+   av_dict_free(&d);
+ @endcode
+ */
+
+#define AV_DICT_MATCH_CASE      1   /**< Only get an entry with exact-case key match. Only relevant in av_dict_get(). */
+#define AV_DICT_IGNORE_SUFFIX   2   /**< Return first entry in a dictionary whose first part corresponds to the search key,
+                                         ignoring the suffix of the found key string. Only relevant in av_dict_get(). */
+#define AV_DICT_DONT_STRDUP_KEY 4   /**< Take ownership of a key that's been
+                                         allocated with av_malloc() or another memory allocation function. */
+#define AV_DICT_DONT_STRDUP_VAL 8   /**< Take ownership of a value that's been
+                                         allocated with av_malloc() or another memory allocation function. */
+#define AV_DICT_DONT_OVERWRITE 16   ///< Don't overwrite existing entries.
+#define AV_DICT_APPEND         32   /**< If the entry already exists, append to it.  Note that no
+                                      delimiter is added, the strings are simply concatenated. */
+#define AV_DICT_MULTIKEY       64   /**< Allow to store several equal keys in the dictionary */
+
+typedef struct AVDictionaryEntry {
+    char *key;
+    char *value;
+} AVDictionaryEntry;
+
+typedef struct AVDictionary AVDictionary;
+
+/**
+ * Get a dictionary entry with matching key.
+ *
+ * The returned entry key or value must not be changed, or it will
+ * cause undefined behavior.
+ *
+ * To iterate through all the dictionary entries, you can set the matching key
+ * to the null string "" and set the AV_DICT_IGNORE_SUFFIX flag.
+ *
+ * @param prev Set to the previous matching element to find the next.
+ *             If set to NULL the first matching element is returned.
+ * @param key matching key
+ * @param flags a collection of AV_DICT_* flags controlling how the entry is retrieved
+ * @return found entry or NULL in case no matching entry was found in the dictionary
+ */
+AVDictionaryEntry *av_dict_get(const AVDictionary *m, const char *key,
+                               const AVDictionaryEntry *prev, int flags);
+
+/**
+ * Get number of entries in dictionary.
+ *
+ * @param m dictionary
+ * @return  number of entries in dictionary
+ */
+int av_dict_count(const AVDictionary *m);
+
+/**
+ * Set the given entry in *pm, overwriting an existing entry.
+ *
+ * Note: If AV_DICT_DONT_STRDUP_KEY or AV_DICT_DONT_STRDUP_VAL is set,
+ * these arguments will be freed on error.
+ *
+ * Warning: Adding a new entry to a dictionary invalidates all existing entries
+ * previously returned with av_dict_get.
+ *
+ * @param pm pointer to a pointer to a dictionary struct. If *pm is NULL
+ * a dictionary struct is allocated and put in *pm.
+ * @param key entry key to add to *pm (will either be av_strduped or added as a new key depending on flags)
+ * @param value entry value to add to *pm (will be av_strduped or added as a new key depending on flags).
+ *        Passing a NULL value will cause an existing entry to be deleted.
+ * @return >= 0 on success otherwise an error code <0
+ */
+int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags);
+
+/**
+ * Convenience wrapper for av_dict_set that converts the value to a string
+ * and stores it.
+ *
+ * Note: If AV_DICT_DONT_STRDUP_KEY is set, key will be freed on error.
+ */
+int av_dict_set_int(AVDictionary **pm, const char *key, int64_t value, int flags);
+
+/**
+ * Parse the key/value pairs list and add the parsed entries to a dictionary.
+ *
+ * In case of failure, all the successfully set entries are stored in
+ * *pm. You may need to manually free the created dictionary.
+ *
+ * @param key_val_sep  a 0-terminated list of characters used to separate
+ *                     key from value
+ * @param pairs_sep    a 0-terminated list of characters used to separate
+ *                     two pairs from each other
+ * @param flags        flags to use when adding to dictionary.
+ *                     AV_DICT_DONT_STRDUP_KEY and AV_DICT_DONT_STRDUP_VAL
+ *                     are ignored since the key/value tokens will always
+ *                     be duplicated.
+ * @return             0 on success, negative AVERROR code on failure
+ */
+int av_dict_parse_string(AVDictionary **pm, const char *str,
+                         const char *key_val_sep, const char *pairs_sep,
+                         int flags);
+
+/**
+ * Copy entries from one AVDictionary struct into another.
+ * @param dst pointer to a pointer to a AVDictionary struct. If *dst is NULL,
+ *            this function will allocate a struct for you and put it in *dst
+ * @param src pointer to source AVDictionary struct
+ * @param flags flags to use when setting entries in *dst
+ * @note metadata is read using the AV_DICT_IGNORE_SUFFIX flag
+ * @return 0 on success, negative AVERROR code on failure. If dst was allocated
+ *           by this function, callers should free the associated memory.
+ */
+int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags);
+
+/**
+ * Free all the memory allocated for an AVDictionary struct
+ * and all keys and values.
+ */
+void av_dict_free(AVDictionary **m);
+
+/**
+ * Get dictionary entries as a string.
+ *
+ * Create a string containing dictionary's entries.
+ * Such string may be passed back to av_dict_parse_string().
+ * @note String is escaped with backslashes ('\').
+ *
+ * @param[in]  m             dictionary
+ * @param[out] buffer        Pointer to buffer that will be allocated with string containg entries.
+ *                           Buffer must be freed by the caller when is no longer needed.
+ * @param[in]  key_val_sep   character used to separate key from value
+ * @param[in]  pairs_sep     character used to separate two pairs from each other
+ * @return                   >= 0 on success, negative on error
+ * @warning Separators cannot be neither '\\' nor '\0'. They also cannot be the same.
+ */
+int av_dict_get_string(const AVDictionary *m, char **buffer,
+                       const char key_val_sep, const char pairs_sep);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_DICT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/display.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/display.c
new file mode 100644
index 000000000..a0076e067
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/display.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2014 Vittorio Giovara <vittorio.giovara@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <string.h>
+#include <math.h>
+
+#include "display.h"
+#include "mathematics.h"
+
+// fixed point to double
+#define CONV_FP(x) ((double) (x)) / (1 << 16)
+
+// double to fixed point
+#define CONV_DB(x) (int32_t) ((x) * (1 << 16))
+
+double av_display_rotation_get(const int32_t matrix[9])
+{
+    double rotation, scale[2];
+
+    scale[0] = hypot(CONV_FP(matrix[0]), CONV_FP(matrix[3]));
+    scale[1] = hypot(CONV_FP(matrix[1]), CONV_FP(matrix[4]));
+
+    if (scale[0] == 0.0 || scale[1] == 0.0)
+        return NAN;
+
+    rotation = atan2(CONV_FP(matrix[1]) / scale[1],
+                     CONV_FP(matrix[0]) / scale[0]) * 180 / M_PI;
+
+    return -rotation;
+}
+
+void av_display_rotation_set(int32_t matrix[9], double angle)
+{
+    double radians = -angle * M_PI / 180.0f;
+    double c = cos(radians);
+    double s = sin(radians);
+
+    memset(matrix, 0, 9 * sizeof(int32_t));
+
+    matrix[0] = CONV_DB(c);
+    matrix[1] = CONV_DB(-s);
+    matrix[3] = CONV_DB(s);
+    matrix[4] = CONV_DB(c);
+    matrix[8] = 1 << 30;
+}
+
+void av_display_matrix_flip(int32_t matrix[9], int hflip, int vflip)
+{
+    int i;
+    const int flip[] = { 1 - 2 * (!!hflip), 1 - 2 * (!!vflip), 1 };
+
+    if (hflip || vflip)
+        for (i = 0; i < 9; i++)
+            matrix[i] *= flip[i % 3];
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/display.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/display.h
new file mode 100644
index 000000000..515adad79
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/display.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2014 Vittorio Giovara <vittorio.giovara@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Display matrix
+ */
+
+#ifndef AVUTIL_DISPLAY_H
+#define AVUTIL_DISPLAY_H
+
+#include <stdint.h>
+#include "common.h"
+
+/**
+ * @addtogroup lavu_video
+ * @{
+ *
+ * @defgroup lavu_video_display Display transformation matrix functions
+ * @{
+ */
+
+/**
+ * @addtogroup lavu_video_display
+ * The display transformation matrix specifies an affine transformation that
+ * should be applied to video frames for correct presentation. It is compatible
+ * with the matrices stored in the ISO/IEC 14496-12 container format.
+ *
+ * The data is a 3x3 matrix represented as a 9-element array:
+ *
+ * @code{.unparsed}
+ *                                  | a b u |
+ *   (a, b, u, c, d, v, x, y, w) -> | c d v |
+ *                                  | x y w |
+ * @endcode
+ *
+ * All numbers are stored in native endianness, as 16.16 fixed-point values,
+ * except for u, v and w, which are stored as 2.30 fixed-point values.
+ *
+ * The transformation maps a point (p, q) in the source (pre-transformation)
+ * frame to the point (p', q') in the destination (post-transformation) frame as
+ * follows:
+ *
+ * @code{.unparsed}
+ *               | a b u |
+ *   (p, q, 1) . | c d v | = z * (p', q', 1)
+ *               | x y w |
+ * @endcode
+ *
+ * The transformation can also be more explicitly written in components as
+ * follows:
+ *
+ * @code{.unparsed}
+ *   p' = (a * p + c * q + x) / z;
+ *   q' = (b * p + d * q + y) / z;
+ *   z  =  u * p + v * q + w
+ * @endcode
+ */
+
+/**
+ * Extract the rotation component of the transformation matrix.
+ *
+ * @param matrix the transformation matrix
+ * @return the angle (in degrees) by which the transformation rotates the frame
+ *         counterclockwise. The angle will be in range [-180.0, 180.0],
+ *         or NaN if the matrix is singular.
+ *
+ * @note floating point numbers are inherently inexact, so callers are
+ *       recommended to round the return value to nearest integer before use.
+ */
+double av_display_rotation_get(const int32_t matrix[9]);
+
+/**
+ * Initialize a transformation matrix describing a pure counterclockwise
+ * rotation by the specified angle (in degrees).
+ *
+ * @param matrix an allocated transformation matrix (will be fully overwritten
+ *               by this function)
+ * @param angle rotation angle in degrees.
+ */
+void av_display_rotation_set(int32_t matrix[9], double angle);
+
+/**
+ * Flip the input matrix horizontally and/or vertically.
+ *
+ * @param matrix an allocated transformation matrix
+ * @param hflip whether the matrix should be flipped horizontally
+ * @param vflip whether the matrix should be flipped vertically
+ */
+void av_display_matrix_flip(int32_t matrix[9], int hflip, int vflip);
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* AVUTIL_DISPLAY_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/downmix_info.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/downmix_info.c
new file mode 100644
index 000000000..c634c6a79
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/downmix_info.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2014 Tim Walker <tdskywalker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "downmix_info.h"
+#include "frame.h"
+
+AVDownmixInfo *av_downmix_info_update_side_data(AVFrame *frame)
+{
+    AVFrameSideData *side_data;
+
+    side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_DOWNMIX_INFO);
+
+    if (!side_data)
+        side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_DOWNMIX_INFO,
+                                           sizeof(AVDownmixInfo));
+
+    if (!side_data)
+        return NULL;
+
+    return (AVDownmixInfo*)side_data->data;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/downmix_info.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/downmix_info.h
new file mode 100644
index 000000000..221cf5bf9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/downmix_info.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2014 Tim Walker <tdskywalker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_DOWNMIX_INFO_H
+#define AVUTIL_DOWNMIX_INFO_H
+
+#include "frame.h"
+
+/**
+ * @file
+ * audio downmix medatata
+ */
+
+/**
+ * @addtogroup lavu_audio
+ * @{
+ */
+
+/**
+ * @defgroup downmix_info Audio downmix metadata
+ * @{
+ */
+
+/**
+ * Possible downmix types.
+ */
+enum AVDownmixType {
+    AV_DOWNMIX_TYPE_UNKNOWN, /**< Not indicated. */
+    AV_DOWNMIX_TYPE_LORO,    /**< Lo/Ro 2-channel downmix (Stereo). */
+    AV_DOWNMIX_TYPE_LTRT,    /**< Lt/Rt 2-channel downmix, Dolby Surround compatible. */
+    AV_DOWNMIX_TYPE_DPLII,   /**< Lt/Rt 2-channel downmix, Dolby Pro Logic II compatible. */
+    AV_DOWNMIX_TYPE_NB       /**< Number of downmix types. Not part of ABI. */
+};
+
+/**
+ * This structure describes optional metadata relevant to a downmix procedure.
+ *
+ * All fields are set by the decoder to the value indicated in the audio
+ * bitstream (if present), or to a "sane" default otherwise.
+ */
+typedef struct AVDownmixInfo {
+    /**
+     * Type of downmix preferred by the mastering engineer.
+     */
+    enum AVDownmixType preferred_downmix_type;
+
+    /**
+     * Absolute scale factor representing the nominal level of the center
+     * channel during a regular downmix.
+     */
+    double center_mix_level;
+
+    /**
+     * Absolute scale factor representing the nominal level of the center
+     * channel during an Lt/Rt compatible downmix.
+     */
+    double center_mix_level_ltrt;
+
+    /**
+     * Absolute scale factor representing the nominal level of the surround
+     * channels during a regular downmix.
+     */
+    double surround_mix_level;
+
+    /**
+     * Absolute scale factor representing the nominal level of the surround
+     * channels during an Lt/Rt compatible downmix.
+     */
+    double surround_mix_level_ltrt;
+
+    /**
+     * Absolute scale factor representing the level at which the LFE data is
+     * mixed into L/R channels during downmixing.
+     */
+    double lfe_mix_level;
+} AVDownmixInfo;
+
+/**
+ * Get a frame's AV_FRAME_DATA_DOWNMIX_INFO side data for editing.
+ *
+ * If the side data is absent, it is created and added to the frame.
+ *
+ * @param frame the frame for which the side data is to be obtained or created
+ *
+ * @return the AVDownmixInfo structure to be edited by the caller, or NULL if
+ *         the structure cannot be allocated.
+ */
+AVDownmixInfo *av_downmix_info_update_side_data(AVFrame *frame);
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_DOWNMIX_INFO_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/dynarray.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/dynarray.h
new file mode 100644
index 000000000..3a7e14642
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/dynarray.h
@@ -0,0 +1,70 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with FFmpeg; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_DYNARRAY_H
+#define AVUTIL_DYNARRAY_H
+
+#include "log.h"
+#include "mem.h"
+
+/**
+ * Add an element to a dynamic array.
+ *
+ * The array is reallocated when its number of elements reaches powers of 2.
+ * Therefore, the amortized cost of adding an element is constant.
+ *
+ * In case of success, the pointer to the array is updated in order to
+ * point to the new grown array, and the size is incremented.
+ *
+ * @param av_size_max  maximum size of the array, usually the MAX macro of
+ *                     the type of the size
+ * @param av_elt_size  size of the elements in the array, in bytes
+ * @param av_array     pointer to the array, must be a lvalue
+ * @param av_size      size of the array, must be an integer lvalue
+ * @param av_success   statement to execute on success; at this point, the
+ *                     size variable is not yet incremented
+ * @param av_failure   statement to execute on failure; if this happens, the
+ *                     array and size are not changed; the statement can end
+ *                     with a return or a goto
+ */
+#define FF_DYNARRAY_ADD(av_size_max, av_elt_size, av_array, av_size, \
+                        av_success, av_failure) \
+    do { \
+        size_t av_size_new = (av_size); \
+        if (!((av_size) & ((av_size) - 1))) { \
+            av_size_new = (av_size) ? (av_size) << 1 : 1; \
+            if (av_size_new > (av_size_max) / (av_elt_size)) { \
+                av_size_new = 0; \
+            } else { \
+                void *av_array_new = \
+                    av_realloc((av_array), av_size_new * (av_elt_size)); \
+                if (!av_array_new) \
+                    av_size_new = 0; \
+                else \
+                    (av_array) = av_array_new; \
+            } \
+        } \
+        if (av_size_new) { \
+            { av_success } \
+            (av_size)++; \
+        } else { \
+            av_failure \
+        } \
+    } while (0)
+
+#endif /* AVUTIL_DYNARRAY_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/encryption_info.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/encryption_info.c
new file mode 100644
index 000000000..812c70477
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/encryption_info.c
@@ -0,0 +1,339 @@
+/**
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "encryption_info.h"
+#include "mem.h"
+#include "intreadwrite.h"
+
+#define FF_ENCRYPTION_INFO_EXTRA 24
+
+// The format of the AVEncryptionInfo side data:
+// u32be scheme
+// u32be crypt_byte_block
+// u32be skip_byte_block
+// u32be key_id_size
+// u32be iv_size
+// u32be subsample_count
+// u8[key_id_size] key_id
+// u8[iv_size] iv
+// {
+//   u32be bytes_of_clear_data
+//   u32be bytes_of_protected_data
+// }[subsample_count]
+
+AVEncryptionInfo *av_encryption_info_alloc(uint32_t subsample_count, uint32_t key_id_size, uint32_t iv_size)
+{
+    AVEncryptionInfo *info;
+
+    info = av_mallocz(sizeof(*info));
+    if (!info)
+        return NULL;
+
+    info->key_id = av_mallocz(key_id_size);
+    info->key_id_size = key_id_size;
+    info->iv = av_mallocz(iv_size);
+    info->iv_size = iv_size;
+    info->subsamples = av_mallocz_array(subsample_count, sizeof(*info->subsamples));
+    info->subsample_count = subsample_count;
+
+    // Allow info->subsamples to be NULL if there are no subsamples.
+    if (!info->key_id || !info->iv || (!info->subsamples && subsample_count)) {
+        av_encryption_info_free(info);
+        return NULL;
+    }
+
+    return info;
+}
+
+AVEncryptionInfo *av_encryption_info_clone(const AVEncryptionInfo *info)
+{
+    AVEncryptionInfo *ret;
+
+    ret = av_encryption_info_alloc(info->subsample_count, info->key_id_size, info->iv_size);
+    if (!ret)
+        return NULL;
+
+    ret->scheme = info->scheme;
+    ret->crypt_byte_block = info->crypt_byte_block;
+    ret->skip_byte_block = info->skip_byte_block;
+    memcpy(ret->iv, info->iv, info->iv_size);
+    memcpy(ret->key_id, info->key_id, info->key_id_size);
+    memcpy(ret->subsamples, info->subsamples, sizeof(*info->subsamples) * info->subsample_count);
+    return ret;
+}
+
+void av_encryption_info_free(AVEncryptionInfo *info)
+{
+    if (info) {
+        av_free(info->key_id);
+        av_free(info->iv);
+        av_free(info->subsamples);
+        av_free(info);
+    }
+}
+
+AVEncryptionInfo *av_encryption_info_get_side_data(const uint8_t* buffer, size_t size)
+{
+    AVEncryptionInfo *info;
+    uint64_t key_id_size, iv_size, subsample_count, i;
+
+    if (!buffer || size < FF_ENCRYPTION_INFO_EXTRA)
+        return NULL;
+
+    key_id_size = AV_RB32(buffer + 12);
+    iv_size = AV_RB32(buffer + 16);
+    subsample_count = AV_RB32(buffer + 20);
+
+    if (size < FF_ENCRYPTION_INFO_EXTRA + key_id_size + iv_size + subsample_count * 8)
+        return NULL;
+
+    info = av_encryption_info_alloc(subsample_count, key_id_size, iv_size);
+    if (!info)
+        return NULL;
+
+    info->scheme = AV_RB32(buffer);
+    info->crypt_byte_block = AV_RB32(buffer + 4);
+    info->skip_byte_block = AV_RB32(buffer + 8);
+    memcpy(info->key_id, buffer + 24, key_id_size);
+    memcpy(info->iv, buffer + key_id_size + 24, iv_size);
+
+    buffer += key_id_size + iv_size + 24;
+    for (i = 0; i < subsample_count; i++) {
+        info->subsamples[i].bytes_of_clear_data = AV_RB32(buffer);
+        info->subsamples[i].bytes_of_protected_data = AV_RB32(buffer + 4);
+        buffer += 8;
+    }
+
+    return info;
+}
+
+uint8_t *av_encryption_info_add_side_data(const AVEncryptionInfo *info, size_t *size)
+{
+    uint8_t *buffer, *cur_buffer;
+    uint32_t i;
+
+    if (UINT32_MAX - FF_ENCRYPTION_INFO_EXTRA < info->key_id_size ||
+        UINT32_MAX - FF_ENCRYPTION_INFO_EXTRA - info->key_id_size < info->iv_size ||
+        (UINT32_MAX - FF_ENCRYPTION_INFO_EXTRA - info->key_id_size - info->iv_size) / 8 < info->subsample_count) {
+        return NULL;
+    }
+
+    *size = FF_ENCRYPTION_INFO_EXTRA + info->key_id_size + info->iv_size +
+            (info->subsample_count * 8);
+    cur_buffer = buffer = av_malloc(*size);
+    if (!buffer)
+        return NULL;
+
+    AV_WB32(cur_buffer,      info->scheme);
+    AV_WB32(cur_buffer +  4, info->crypt_byte_block);
+    AV_WB32(cur_buffer +  8, info->skip_byte_block);
+    AV_WB32(cur_buffer + 12, info->key_id_size);
+    AV_WB32(cur_buffer + 16, info->iv_size);
+    AV_WB32(cur_buffer + 20, info->subsample_count);
+    cur_buffer += 24;
+    memcpy(cur_buffer, info->key_id, info->key_id_size);
+    cur_buffer += info->key_id_size;
+    memcpy(cur_buffer, info->iv, info->iv_size);
+    cur_buffer += info->iv_size;
+    for (i = 0; i < info->subsample_count; i++) {
+        AV_WB32(cur_buffer, info->subsamples[i].bytes_of_clear_data);
+        AV_WB32(cur_buffer + 4, info->subsamples[i].bytes_of_protected_data);
+        cur_buffer += 8;
+    }
+
+    return buffer;
+}
+
+// The format of the AVEncryptionInitInfo side data:
+// u32be init_info_count
+// {
+//   u32be system_id_size
+//   u32be num_key_ids
+//   u32be key_id_size
+//   u32be data_size
+//   u8[system_id_size] system_id
+//   u8[key_id_size][num_key_id] key_ids
+//   u8[data_size] data
+// }[init_info_count]
+
+#define FF_ENCRYPTION_INIT_INFO_EXTRA 16
+
+AVEncryptionInitInfo *av_encryption_init_info_alloc(
+    uint32_t system_id_size, uint32_t num_key_ids, uint32_t key_id_size, uint32_t data_size)
+{
+    AVEncryptionInitInfo *info;
+    uint32_t i;
+
+    info = av_mallocz(sizeof(*info));
+    if (!info)
+        return NULL;
+
+    info->system_id = av_mallocz(system_id_size);
+    info->system_id_size = system_id_size;
+    info->key_ids = key_id_size ? av_mallocz_array(num_key_ids, sizeof(*info->key_ids)) : NULL;
+    info->num_key_ids = num_key_ids;
+    info->key_id_size = key_id_size;
+    info->data = av_mallocz(data_size);
+    info->data_size = data_size;
+
+    // Allow pointers to be NULL if the size is 0.
+    if ((!info->system_id && system_id_size) || (!info->data && data_size) ||
+        (!info->key_ids && num_key_ids && key_id_size)) {
+        av_encryption_init_info_free(info);
+        return NULL;
+    }
+
+    if (key_id_size) {
+        for (i = 0; i < num_key_ids; i++) {
+            info->key_ids[i] = av_mallocz(key_id_size);
+            if (!info->key_ids[i]) {
+                av_encryption_init_info_free(info);
+                return NULL;
+            }
+        }
+    }
+
+    return info;
+}
+
+void av_encryption_init_info_free(AVEncryptionInitInfo *info)
+{
+    uint32_t i;
+    if (info) {
+        for (i = 0; i < info->num_key_ids; i++) {
+            av_free(info->key_ids[i]);
+        }
+        av_encryption_init_info_free(info->next);
+        av_free(info->system_id);
+        av_free(info->key_ids);
+        av_free(info->data);
+        av_free(info);
+    }
+}
+
+AVEncryptionInitInfo *av_encryption_init_info_get_side_data(
+    const uint8_t *side_data, size_t side_data_size)
+{
+    // |ret| tracks the front of the list, |info| tracks the back.
+    AVEncryptionInitInfo *ret = NULL, *info, *temp_info;
+    uint64_t system_id_size, num_key_ids, key_id_size, data_size, i, j;
+    uint64_t init_info_count;
+
+    if (!side_data || side_data_size < 4)
+        return NULL;
+
+    init_info_count = AV_RB32(side_data);
+    side_data += 4;
+    side_data_size -= 4;
+    for (i = 0; i < init_info_count; i++) {
+        if (side_data_size < FF_ENCRYPTION_INIT_INFO_EXTRA) {
+            av_encryption_init_info_free(ret);
+            return NULL;
+        }
+
+        system_id_size = AV_RB32(side_data);
+        num_key_ids = AV_RB32(side_data + 4);
+        key_id_size = AV_RB32(side_data + 8);
+        data_size = AV_RB32(side_data + 12);
+
+        // UINT32_MAX + UINT32_MAX + UINT32_MAX * UINT32_MAX == UINT64_MAX
+        if (side_data_size - FF_ENCRYPTION_INIT_INFO_EXTRA < system_id_size + data_size + num_key_ids * key_id_size) {
+            av_encryption_init_info_free(ret);
+            return NULL;
+        }
+        side_data += FF_ENCRYPTION_INIT_INFO_EXTRA;
+        side_data_size -= FF_ENCRYPTION_INIT_INFO_EXTRA;
+
+        temp_info = av_encryption_init_info_alloc(system_id_size, num_key_ids, key_id_size, data_size);
+        if (!temp_info) {
+            av_encryption_init_info_free(ret);
+            return NULL;
+        }
+        if (i == 0) {
+            info = ret = temp_info;
+        } else {
+            info->next = temp_info;
+            info = temp_info;
+        }
+
+        memcpy(info->system_id, side_data, system_id_size);
+        side_data += system_id_size;
+        side_data_size -= system_id_size;
+        for (j = 0; j < num_key_ids; j++) {
+            memcpy(info->key_ids[j], side_data, key_id_size);
+            side_data += key_id_size;
+            side_data_size -= key_id_size;
+        }
+        memcpy(info->data, side_data, data_size);
+        side_data += data_size;
+        side_data_size -= data_size;
+    }
+
+    return ret;
+}
+
+uint8_t *av_encryption_init_info_add_side_data(const AVEncryptionInitInfo *info, size_t *side_data_size)
+{
+    const AVEncryptionInitInfo *cur_info;
+    uint8_t *buffer, *cur_buffer;
+    uint32_t i, init_info_count;
+    uint64_t temp_side_data_size;
+
+    temp_side_data_size = 4;
+    init_info_count = 0;
+    for (cur_info = info; cur_info; cur_info = cur_info->next) {
+        temp_side_data_size += (uint64_t)FF_ENCRYPTION_INIT_INFO_EXTRA + cur_info->system_id_size + cur_info->data_size;
+        if (init_info_count == UINT32_MAX || temp_side_data_size > UINT32_MAX) {
+            return NULL;
+        }
+        init_info_count++;
+
+        if (cur_info->num_key_ids) {
+            temp_side_data_size += (uint64_t)cur_info->num_key_ids * cur_info->key_id_size;
+            if (temp_side_data_size > UINT32_MAX) {
+                return NULL;
+            }
+        }
+    }
+    *side_data_size = temp_side_data_size;
+
+    cur_buffer = buffer = av_malloc(*side_data_size);
+    if (!buffer)
+        return NULL;
+
+    AV_WB32(cur_buffer, init_info_count);
+    cur_buffer += 4;
+    for (cur_info = info; cur_info; cur_info = cur_info->next) {
+        AV_WB32(cur_buffer,      cur_info->system_id_size);
+        AV_WB32(cur_buffer +  4, cur_info->num_key_ids);
+        AV_WB32(cur_buffer +  8, cur_info->key_id_size);
+        AV_WB32(cur_buffer + 12, cur_info->data_size);
+        cur_buffer += 16;
+
+        memcpy(cur_buffer, cur_info->system_id, cur_info->system_id_size);
+        cur_buffer += cur_info->system_id_size;
+        for (i = 0; i < cur_info->num_key_ids; i++) {
+            memcpy(cur_buffer, cur_info->key_ids[i], cur_info->key_id_size);
+            cur_buffer += cur_info->key_id_size;
+        }
+        memcpy(cur_buffer, cur_info->data, cur_info->data_size);
+        cur_buffer += cur_info->data_size;
+    }
+
+    return buffer;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/encryption_info.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/encryption_info.h
new file mode 100644
index 000000000..8fe7ebfe4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/encryption_info.h
@@ -0,0 +1,205 @@
+/**
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_ENCRYPTION_INFO_H
+#define AVUTIL_ENCRYPTION_INFO_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+typedef struct AVSubsampleEncryptionInfo {
+    /** The number of bytes that are clear. */
+    unsigned int bytes_of_clear_data;
+
+    /**
+     * The number of bytes that are protected.  If using pattern encryption,
+     * the pattern applies to only the protected bytes; if not using pattern
+     * encryption, all these bytes are encrypted.
+     */
+    unsigned int bytes_of_protected_data;
+} AVSubsampleEncryptionInfo;
+
+/**
+ * This describes encryption info for a packet.  This contains frame-specific
+ * info for how to decrypt the packet before passing it to the decoder.
+ *
+ * The size of this struct is not part of the public ABI.
+ */
+typedef struct AVEncryptionInfo {
+    /** The fourcc encryption scheme, in big-endian byte order. */
+    uint32_t scheme;
+
+    /**
+     * Only used for pattern encryption.  This is the number of 16-byte blocks
+     * that are encrypted.
+     */
+    uint32_t crypt_byte_block;
+
+    /**
+     * Only used for pattern encryption.  This is the number of 16-byte blocks
+     * that are clear.
+     */
+    uint32_t skip_byte_block;
+
+    /**
+     * The ID of the key used to encrypt the packet.  This should always be
+     * 16 bytes long, but may be changed in the future.
+     */
+    uint8_t *key_id;
+    uint32_t key_id_size;
+
+    /**
+     * The initialization vector.  This may have been zero-filled to be the
+     * correct block size.  This should always be 16 bytes long, but may be
+     * changed in the future.
+     */
+    uint8_t *iv;
+    uint32_t iv_size;
+
+    /**
+     * An array of subsample encryption info specifying how parts of the sample
+     * are encrypted.  If there are no subsamples, then the whole sample is
+     * encrypted.
+     */
+    AVSubsampleEncryptionInfo *subsamples;
+    uint32_t subsample_count;
+} AVEncryptionInfo;
+
+/**
+ * This describes info used to initialize an encryption key system.
+ *
+ * The size of this struct is not part of the public ABI.
+ */
+typedef struct AVEncryptionInitInfo {
+    /**
+     * A unique identifier for the key system this is for, can be NULL if it
+     * is not known.  This should always be 16 bytes, but may change in the
+     * future.
+     */
+    uint8_t* system_id;
+    uint32_t system_id_size;
+
+    /**
+     * An array of key IDs this initialization data is for.  All IDs are the
+     * same length.  Can be NULL if there are no known key IDs.
+     */
+    uint8_t** key_ids;
+    /** The number of key IDs. */
+    uint32_t num_key_ids;
+    /**
+     * The number of bytes in each key ID.  This should always be 16, but may
+     * change in the future.
+     */
+    uint32_t key_id_size;
+
+    /**
+     * Key-system specific initialization data.  This data is copied directly
+     * from the file and the format depends on the specific key system.  This
+     * can be NULL if there is no initialization data; in that case, there
+     * will be at least one key ID.
+     */
+    uint8_t* data;
+    uint32_t data_size;
+
+    /**
+     * An optional pointer to the next initialization info in the list.
+     */
+    struct AVEncryptionInitInfo *next;
+} AVEncryptionInitInfo;
+
+/**
+ * Allocates an AVEncryptionInfo structure and sub-pointers to hold the given
+ * number of subsamples.  This will allocate pointers for the key ID, IV,
+ * and subsample entries, set the size members, and zero-initialize the rest.
+ *
+ * @param subsample_count The number of subsamples.
+ * @param key_id_size The number of bytes in the key ID, should be 16.
+ * @param iv_size The number of bytes in the IV, should be 16.
+ *
+ * @return The new AVEncryptionInfo structure, or NULL on error.
+ */
+AVEncryptionInfo *av_encryption_info_alloc(uint32_t subsample_count, uint32_t key_id_size, uint32_t iv_size);
+
+/**
+ * Allocates an AVEncryptionInfo structure with a copy of the given data.
+ * @return The new AVEncryptionInfo structure, or NULL on error.
+ */
+AVEncryptionInfo *av_encryption_info_clone(const AVEncryptionInfo *info);
+
+/**
+ * Frees the given encryption info object.  This MUST NOT be used to free the
+ * side-data data pointer, that should use normal side-data methods.
+ */
+void av_encryption_info_free(AVEncryptionInfo *info);
+
+/**
+ * Creates a copy of the AVEncryptionInfo that is contained in the given side
+ * data.  The resulting object should be passed to av_encryption_info_free()
+ * when done.
+ *
+ * @return The new AVEncryptionInfo structure, or NULL on error.
+ */
+AVEncryptionInfo *av_encryption_info_get_side_data(const uint8_t *side_data, size_t side_data_size);
+
+/**
+ * Allocates and initializes side data that holds a copy of the given encryption
+ * info.  The resulting pointer should be either freed using av_free or given
+ * to av_packet_add_side_data().
+ *
+ * @return The new side-data pointer, or NULL.
+ */
+uint8_t *av_encryption_info_add_side_data(
+      const AVEncryptionInfo *info, size_t *side_data_size);
+
+
+/**
+ * Allocates an AVEncryptionInitInfo structure and sub-pointers to hold the
+ * given sizes.  This will allocate pointers and set all the fields.
+ *
+ * @return The new AVEncryptionInitInfo structure, or NULL on error.
+ */
+AVEncryptionInitInfo *av_encryption_init_info_alloc(
+    uint32_t system_id_size, uint32_t num_key_ids, uint32_t key_id_size, uint32_t data_size);
+
+/**
+ * Frees the given encryption init info object.  This MUST NOT be used to free
+ * the side-data data pointer, that should use normal side-data methods.
+ */
+void av_encryption_init_info_free(AVEncryptionInitInfo* info);
+
+/**
+ * Creates a copy of the AVEncryptionInitInfo that is contained in the given
+ * side data.  The resulting object should be passed to
+ * av_encryption_init_info_free() when done.
+ *
+ * @return The new AVEncryptionInitInfo structure, or NULL on error.
+ */
+AVEncryptionInitInfo *av_encryption_init_info_get_side_data(
+    const uint8_t* side_data, size_t side_data_size);
+
+/**
+ * Allocates and initializes side data that holds a copy of the given encryption
+ * init info.  The resulting pointer should be either freed using av_free or
+ * given to av_packet_add_side_data().
+ *
+ * @return The new side-data pointer, or NULL.
+ */
+uint8_t *av_encryption_init_info_add_side_data(
+    const AVEncryptionInitInfo *info, size_t *side_data_size);
+
+#endif /* AVUTIL_ENCRYPTION_INFO_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/error.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/error.c
new file mode 100644
index 000000000..b96304837
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/error.c
@@ -0,0 +1,129 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#undef _GNU_SOURCE
+#define _XOPEN_SOURCE 600 /* XSI-compliant version of strerror_r */
+#include "avutil.h"
+#include "avstring.h"
+#include "common.h"
+
+struct error_entry {
+    int num;
+    const char *tag;
+    const char *str;
+};
+
+#define ERROR_TAG(tag) AVERROR_##tag, #tag
+#define EERROR_TAG(tag) AVERROR(tag), #tag
+#define AVERROR_INPUT_AND_OUTPUT_CHANGED (AVERROR_INPUT_CHANGED | AVERROR_OUTPUT_CHANGED)
+static const struct error_entry error_entries[] = {
+    { ERROR_TAG(BSF_NOT_FOUND),      "Bitstream filter not found"                     },
+    { ERROR_TAG(BUG),                "Internal bug, should not have happened"         },
+    { ERROR_TAG(BUG2),               "Internal bug, should not have happened"         },
+    { ERROR_TAG(BUFFER_TOO_SMALL),   "Buffer too small"                               },
+    { ERROR_TAG(DECODER_NOT_FOUND),  "Decoder not found"                              },
+    { ERROR_TAG(DEMUXER_NOT_FOUND),  "Demuxer not found"                              },
+    { ERROR_TAG(ENCODER_NOT_FOUND),  "Encoder not found"                              },
+    { ERROR_TAG(EOF),                "End of file"                                    },
+    { ERROR_TAG(EXIT),               "Immediate exit requested"                       },
+    { ERROR_TAG(EXTERNAL),           "Generic error in an external library"           },
+    { ERROR_TAG(FILTER_NOT_FOUND),   "Filter not found"                               },
+    { ERROR_TAG(INPUT_CHANGED),      "Input changed"                                  },
+    { ERROR_TAG(INVALIDDATA),        "Invalid data found when processing input"       },
+    { ERROR_TAG(MUXER_NOT_FOUND),    "Muxer not found"                                },
+    { ERROR_TAG(OPTION_NOT_FOUND),   "Option not found"                               },
+    { ERROR_TAG(OUTPUT_CHANGED),     "Output changed"                                 },
+    { ERROR_TAG(PATCHWELCOME),       "Not yet implemented in FFmpeg, patches welcome" },
+    { ERROR_TAG(PROTOCOL_NOT_FOUND), "Protocol not found"                             },
+    { ERROR_TAG(STREAM_NOT_FOUND),   "Stream not found"                               },
+    { ERROR_TAG(UNKNOWN),            "Unknown error occurred"                         },
+    { ERROR_TAG(EXPERIMENTAL),       "Experimental feature"                           },
+    { ERROR_TAG(INPUT_AND_OUTPUT_CHANGED), "Input and output changed"                 },
+    { ERROR_TAG(HTTP_BAD_REQUEST),   "Server returned 400 Bad Request"         },
+    { ERROR_TAG(HTTP_UNAUTHORIZED),  "Server returned 401 Unauthorized (authorization failed)" },
+    { ERROR_TAG(HTTP_FORBIDDEN),     "Server returned 403 Forbidden (access denied)" },
+    { ERROR_TAG(HTTP_NOT_FOUND),     "Server returned 404 Not Found"           },
+    { ERROR_TAG(HTTP_OTHER_4XX),     "Server returned 4XX Client Error, but not one of 40{0,1,3,4}" },
+    { ERROR_TAG(HTTP_SERVER_ERROR),  "Server returned 5XX Server Error reply" },
+#if !HAVE_STRERROR_R
+    { EERROR_TAG(E2BIG),             "Argument list too long" },
+    { EERROR_TAG(EACCES),            "Permission denied" },
+    { EERROR_TAG(EAGAIN),            "Resource temporarily unavailable" },
+    { EERROR_TAG(EBADF),             "Bad file descriptor" },
+    { EERROR_TAG(EBUSY),             "Device or resource busy" },
+    { EERROR_TAG(ECHILD),            "No child processes" },
+    { EERROR_TAG(EDEADLK),           "Resource deadlock avoided" },
+    { EERROR_TAG(EDOM),              "Numerical argument out of domain" },
+    { EERROR_TAG(EEXIST),            "File exists" },
+    { EERROR_TAG(EFAULT),            "Bad address" },
+    { EERROR_TAG(EFBIG),             "File too large" },
+    { EERROR_TAG(EILSEQ),            "Illegal byte sequence" },
+    { EERROR_TAG(EINTR),             "Interrupted system call" },
+    { EERROR_TAG(EINVAL),            "Invalid argument" },
+    { EERROR_TAG(EIO),               "I/O error" },
+    { EERROR_TAG(EISDIR),            "Is a directory" },
+    { EERROR_TAG(EMFILE),            "Too many open files" },
+    { EERROR_TAG(EMLINK),            "Too many links" },
+    { EERROR_TAG(ENAMETOOLONG),      "File name too long" },
+    { EERROR_TAG(ENFILE),            "Too many open files in system" },
+    { EERROR_TAG(ENODEV),            "No such device" },
+    { EERROR_TAG(ENOENT),            "No such file or directory" },
+    { EERROR_TAG(ENOEXEC),           "Exec format error" },
+    { EERROR_TAG(ENOLCK),            "No locks available" },
+    { EERROR_TAG(ENOMEM),            "Cannot allocate memory" },
+    { EERROR_TAG(ENOSPC),            "No space left on device" },
+    { EERROR_TAG(ENOSYS),            "Function not implemented" },
+    { EERROR_TAG(ENOTDIR),           "Not a directory" },
+    { EERROR_TAG(ENOTEMPTY),         "Directory not empty" },
+    { EERROR_TAG(ENOTTY),            "Inappropriate I/O control operation" },
+    { EERROR_TAG(ENXIO),             "No such device or address" },
+    { EERROR_TAG(EPERM),             "Operation not permitted" },
+    { EERROR_TAG(EPIPE),             "Broken pipe" },
+    { EERROR_TAG(ERANGE),            "Result too large" },
+    { EERROR_TAG(EROFS),             "Read-only file system" },
+    { EERROR_TAG(ESPIPE),            "Illegal seek" },
+    { EERROR_TAG(ESRCH),             "No such process" },
+    { EERROR_TAG(EXDEV),             "Cross-device link" },
+#endif
+};
+
+int av_strerror(int errnum, char *errbuf, size_t errbuf_size)
+{
+    int ret = 0, i;
+    const struct error_entry *entry = NULL;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(error_entries); i++) {
+        if (errnum == error_entries[i].num) {
+            entry = &error_entries[i];
+            break;
+        }
+    }
+    if (entry) {
+        av_strlcpy(errbuf, entry->str, errbuf_size);
+    } else {
+#if HAVE_STRERROR_R
+        ret = AVERROR(strerror_r(AVUNERROR(errnum), errbuf, errbuf_size));
+#else
+        ret = -1;
+#endif
+        if (ret < 0)
+            snprintf(errbuf, errbuf_size, "Error number %d occurred", errnum);
+    }
+
+    return ret;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/error.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/error.h
new file mode 100644
index 000000000..71df4da35
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/error.h
@@ -0,0 +1,126 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * error code definitions
+ */
+
+#ifndef AVUTIL_ERROR_H
+#define AVUTIL_ERROR_H
+
+#include <errno.h>
+#include <stddef.h>
+
+/**
+ * @addtogroup lavu_error
+ *
+ * @{
+ */
+
+
+/* error handling */
+#if EDOM > 0
+#define AVERROR(e) (-(e))   ///< Returns a negative error code from a POSIX error code, to return from library functions.
+#define AVUNERROR(e) (-(e)) ///< Returns a POSIX error code from a library function error return value.
+#else
+/* Some platforms have E* and errno already negated. */
+#define AVERROR(e) (e)
+#define AVUNERROR(e) (e)
+#endif
+
+#define FFERRTAG(a, b, c, d) (-(int)MKTAG(a, b, c, d))
+
+#define AVERROR_BSF_NOT_FOUND      FFERRTAG(0xF8,'B','S','F') ///< Bitstream filter not found
+#define AVERROR_BUG                FFERRTAG( 'B','U','G','!') ///< Internal bug, also see AVERROR_BUG2
+#define AVERROR_BUFFER_TOO_SMALL   FFERRTAG( 'B','U','F','S') ///< Buffer too small
+#define AVERROR_DECODER_NOT_FOUND  FFERRTAG(0xF8,'D','E','C') ///< Decoder not found
+#define AVERROR_DEMUXER_NOT_FOUND  FFERRTAG(0xF8,'D','E','M') ///< Demuxer not found
+#define AVERROR_ENCODER_NOT_FOUND  FFERRTAG(0xF8,'E','N','C') ///< Encoder not found
+#define AVERROR_EOF                FFERRTAG( 'E','O','F',' ') ///< End of file
+#define AVERROR_EXIT               FFERRTAG( 'E','X','I','T') ///< Immediate exit was requested; the called function should not be restarted
+#define AVERROR_EXTERNAL           FFERRTAG( 'E','X','T',' ') ///< Generic error in an external library
+#define AVERROR_FILTER_NOT_FOUND   FFERRTAG(0xF8,'F','I','L') ///< Filter not found
+#define AVERROR_INVALIDDATA        FFERRTAG( 'I','N','D','A') ///< Invalid data found when processing input
+#define AVERROR_MUXER_NOT_FOUND    FFERRTAG(0xF8,'M','U','X') ///< Muxer not found
+#define AVERROR_OPTION_NOT_FOUND   FFERRTAG(0xF8,'O','P','T') ///< Option not found
+#define AVERROR_PATCHWELCOME       FFERRTAG( 'P','A','W','E') ///< Not yet implemented in FFmpeg, patches welcome
+#define AVERROR_PROTOCOL_NOT_FOUND FFERRTAG(0xF8,'P','R','O') ///< Protocol not found
+
+#define AVERROR_STREAM_NOT_FOUND   FFERRTAG(0xF8,'S','T','R') ///< Stream not found
+/**
+ * This is semantically identical to AVERROR_BUG
+ * it has been introduced in Libav after our AVERROR_BUG and with a modified value.
+ */
+#define AVERROR_BUG2               FFERRTAG( 'B','U','G',' ')
+#define AVERROR_UNKNOWN            FFERRTAG( 'U','N','K','N') ///< Unknown error, typically from an external library
+#define AVERROR_EXPERIMENTAL       (-0x2bb2afa8) ///< Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it.
+#define AVERROR_INPUT_CHANGED      (-0x636e6701) ///< Input changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_OUTPUT_CHANGED)
+#define AVERROR_OUTPUT_CHANGED     (-0x636e6702) ///< Output changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_INPUT_CHANGED)
+/* HTTP & RTSP errors */
+#define AVERROR_HTTP_BAD_REQUEST   FFERRTAG(0xF8,'4','0','0')
+#define AVERROR_HTTP_UNAUTHORIZED  FFERRTAG(0xF8,'4','0','1')
+#define AVERROR_HTTP_FORBIDDEN     FFERRTAG(0xF8,'4','0','3')
+#define AVERROR_HTTP_NOT_FOUND     FFERRTAG(0xF8,'4','0','4')
+#define AVERROR_HTTP_OTHER_4XX     FFERRTAG(0xF8,'4','X','X')
+#define AVERROR_HTTP_SERVER_ERROR  FFERRTAG(0xF8,'5','X','X')
+
+#define AV_ERROR_MAX_STRING_SIZE 64
+
+/**
+ * Put a description of the AVERROR code errnum in errbuf.
+ * In case of failure the global variable errno is set to indicate the
+ * error. Even in case of failure av_strerror() will print a generic
+ * error message indicating the errnum provided to errbuf.
+ *
+ * @param errnum      error code to describe
+ * @param errbuf      buffer to which description is written
+ * @param errbuf_size the size in bytes of errbuf
+ * @return 0 on success, a negative value if a description for errnum
+ * cannot be found
+ */
+int av_strerror(int errnum, char *errbuf, size_t errbuf_size);
+
+/**
+ * Fill the provided buffer with a string containing an error string
+ * corresponding to the AVERROR code errnum.
+ *
+ * @param errbuf         a buffer
+ * @param errbuf_size    size in bytes of errbuf
+ * @param errnum         error code to describe
+ * @return the buffer in input, filled with the error description
+ * @see av_strerror()
+ */
+static inline char *av_make_error_string(char *errbuf, size_t errbuf_size, int errnum)
+{
+    av_strerror(errnum, errbuf, errbuf_size);
+    return errbuf;
+}
+
+/**
+ * Convenience macro, the return value should be used only directly in
+ * function arguments but never stand-alone.
+ */
+#define av_err2str(errnum) \
+    av_make_error_string((char[AV_ERROR_MAX_STRING_SIZE]){0}, AV_ERROR_MAX_STRING_SIZE, errnum)
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_ERROR_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/eval.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/eval.c
new file mode 100644
index 000000000..5da9a6d83
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/eval.c
@@ -0,0 +1,760 @@
+/*
+ * Copyright (c) 2002-2006 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2006 Oded Shimon <ods15@ods15.dyndns.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * simple arithmetic expression evaluator.
+ *
+ * see http://joe.hotchkiss.com/programming/eval/eval.html
+ */
+
+#include <float.h>
+#include "attributes.h"
+#include "avutil.h"
+#include "common.h"
+#include "eval.h"
+#include "ffmath.h"
+#include "internal.h"
+#include "log.h"
+#include "mathematics.h"
+#include "time.h"
+#include "avstring.h"
+#include "timer.h"
+#include "reverse.h"
+
+typedef struct Parser {
+    const AVClass *class;
+    int stack_index;
+    char *s;
+    const double *const_values;
+    const char * const *const_names;          // NULL terminated
+    double (* const *funcs1)(void *, double a);           // NULL terminated
+    const char * const *func1_names;          // NULL terminated
+    double (* const *funcs2)(void *, double a, double b); // NULL terminated
+    const char * const *func2_names;          // NULL terminated
+    void *opaque;
+    int log_offset;
+    void *log_ctx;
+#define VARS 10
+    double *var;
+} Parser;
+
+static const AVClass eval_class = {
+    .class_name                = "Eval",
+    .item_name                 = av_default_item_name,
+    .option                    = NULL,
+    .version                   = LIBAVUTIL_VERSION_INT,
+    .log_level_offset_offset   = offsetof(Parser, log_offset),
+    .parent_log_context_offset = offsetof(Parser, log_ctx),
+};
+
+static const struct {
+    double bin_val;
+    double dec_val;
+    int8_t exp;
+} si_prefixes['z' - 'E' + 1] = {
+    ['y'-'E']= { 8.271806125530276749e-25, 1e-24, -24 },
+    ['z'-'E']= { 8.4703294725430034e-22, 1e-21, -21 },
+    ['a'-'E']= { 8.6736173798840355e-19, 1e-18, -18 },
+    ['f'-'E']= { 8.8817841970012523e-16, 1e-15, -15 },
+    ['p'-'E']= { 9.0949470177292824e-13, 1e-12, -12 },
+    ['n'-'E']= { 9.3132257461547852e-10, 1e-9,  -9 },
+    ['u'-'E']= { 9.5367431640625e-7, 1e-6, -6 },
+    ['m'-'E']= { 9.765625e-4, 1e-3, -3 },
+    ['c'-'E']= { 9.8431332023036951e-3, 1e-2, -2 },
+    ['d'-'E']= { 9.921256574801246e-2, 1e-1, -1 },
+    ['h'-'E']= { 1.0159366732596479e2, 1e2, 2 },
+    ['k'-'E']= { 1.024e3, 1e3, 3 },
+    ['K'-'E']= { 1.024e3, 1e3, 3 },
+    ['M'-'E']= { 1.048576e6, 1e6, 6 },
+    ['G'-'E']= { 1.073741824e9, 1e9, 9 },
+    ['T'-'E']= { 1.099511627776e12, 1e12, 12 },
+    ['P'-'E']= { 1.125899906842624e15, 1e15, 15 },
+    ['E'-'E']= { 1.152921504606847e18, 1e18, 18 },
+    ['Z'-'E']= { 1.1805916207174113e21, 1e21, 21 },
+    ['Y'-'E']= { 1.2089258196146292e24, 1e24, 24 },
+};
+
+static const struct {
+    const char *name;
+    double value;
+} constants[] = {
+    { "E",   M_E   },
+    { "PI",  M_PI  },
+    { "PHI", M_PHI },
+    { "QP2LAMBDA", FF_QP2LAMBDA },
+};
+
+double av_strtod(const char *numstr, char **tail)
+{
+    double d;
+    char *next;
+    if(numstr[0]=='0' && (numstr[1]|0x20)=='x') {
+        d = strtoul(numstr, &next, 16);
+    } else
+        d = strtod(numstr, &next);
+    /* if parsing succeeded, check for and interpret postfixes */
+    if (next!=numstr) {
+        if (next[0] == 'd' && next[1] == 'B') {
+            /* treat dB as decibels instead of decibytes */
+            d = ff_exp10(d / 20);
+            next += 2;
+        } else if (*next >= 'E' && *next <= 'z') {
+            int e= si_prefixes[*next - 'E'].exp;
+            if (e) {
+                if (next[1] == 'i') {
+                    d*= si_prefixes[*next - 'E'].bin_val;
+                    next+=2;
+                } else {
+                    d*= si_prefixes[*next - 'E'].dec_val;
+                    next++;
+                }
+            }
+        }
+
+        if (*next=='B') {
+            d*=8;
+            next++;
+        }
+    }
+    /* if requested, fill in tail with the position after the last parsed
+       character */
+    if (tail)
+        *tail = next;
+    return d;
+}
+
+#define IS_IDENTIFIER_CHAR(c) ((c) - '0' <= 9U || (c) - 'a' <= 25U || (c) - 'A' <= 25U || (c) == '_')
+
+static int strmatch(const char *s, const char *prefix)
+{
+    int i;
+    for (i=0; prefix[i]; i++) {
+        if (prefix[i] != s[i]) return 0;
+    }
+    /* return 1 only if the s identifier is terminated */
+    return !IS_IDENTIFIER_CHAR(s[i]);
+}
+
+struct AVExpr {
+    enum {
+        e_value, e_const, e_func0, e_func1, e_func2,
+        e_squish, e_gauss, e_ld, e_isnan, e_isinf,
+        e_mod, e_max, e_min, e_eq, e_gt, e_gte, e_lte, e_lt,
+        e_pow, e_mul, e_div, e_add,
+        e_last, e_st, e_while, e_taylor, e_root, e_floor, e_ceil, e_trunc, e_round,
+        e_sqrt, e_not, e_random, e_hypot, e_gcd,
+        e_if, e_ifnot, e_print, e_bitand, e_bitor, e_between, e_clip, e_atan2, e_lerp,
+    } type;
+    double value; // is sign in other types
+    union {
+        int const_index;
+        double (*func0)(double);
+        double (*func1)(void *, double);
+        double (*func2)(void *, double, double);
+    } a;
+    struct AVExpr *param[3];
+    double *var;
+};
+
+static double etime(double v)
+{
+    return av_gettime() * 0.000001;
+}
+
+static double eval_expr(Parser *p, AVExpr *e)
+{
+    switch (e->type) {
+        case e_value:  return e->value;
+        case e_const:  return e->value * p->const_values[e->a.const_index];
+        case e_func0:  return e->value * e->a.func0(eval_expr(p, e->param[0]));
+        case e_func1:  return e->value * e->a.func1(p->opaque, eval_expr(p, e->param[0]));
+        case e_func2:  return e->value * e->a.func2(p->opaque, eval_expr(p, e->param[0]), eval_expr(p, e->param[1]));
+        case e_squish: return 1/(1+exp(4*eval_expr(p, e->param[0])));
+        case e_gauss: { double d = eval_expr(p, e->param[0]); return exp(-d*d/2)/sqrt(2*M_PI); }
+        case e_ld:     return e->value * p->var[av_clip(eval_expr(p, e->param[0]), 0, VARS-1)];
+        case e_isnan:  return e->value * !!isnan(eval_expr(p, e->param[0]));
+        case e_isinf:  return e->value * !!isinf(eval_expr(p, e->param[0]));
+        case e_floor:  return e->value * floor(eval_expr(p, e->param[0]));
+        case e_ceil :  return e->value * ceil (eval_expr(p, e->param[0]));
+        case e_trunc:  return e->value * trunc(eval_expr(p, e->param[0]));
+        case e_round:  return e->value * round(eval_expr(p, e->param[0]));
+        case e_sqrt:   return e->value * sqrt (eval_expr(p, e->param[0]));
+        case e_not:    return e->value * (eval_expr(p, e->param[0]) == 0);
+        case e_if:     return e->value * (eval_expr(p, e->param[0]) ? eval_expr(p, e->param[1]) :
+                                          e->param[2] ? eval_expr(p, e->param[2]) : 0);
+        case e_ifnot:  return e->value * (!eval_expr(p, e->param[0]) ? eval_expr(p, e->param[1]) :
+                                          e->param[2] ? eval_expr(p, e->param[2]) : 0);
+        case e_clip: {
+            double x = eval_expr(p, e->param[0]);
+            double min = eval_expr(p, e->param[1]), max = eval_expr(p, e->param[2]);
+            if (isnan(min) || isnan(max) || isnan(x) || min > max)
+                return NAN;
+            return e->value * av_clipd(eval_expr(p, e->param[0]), min, max);
+        }
+        case e_between: {
+            double d = eval_expr(p, e->param[0]);
+            return e->value * (d >= eval_expr(p, e->param[1]) &&
+                               d <= eval_expr(p, e->param[2]));
+        }
+        case e_lerp: {
+            double v0 = eval_expr(p, e->param[0]);
+            double v1 = eval_expr(p, e->param[1]);
+            double f  = eval_expr(p, e->param[2]);
+            return v0 + (v1 - v0) * f;
+        }
+        case e_print: {
+            double x = eval_expr(p, e->param[0]);
+            int level = e->param[1] ? av_clip(eval_expr(p, e->param[1]), INT_MIN, INT_MAX) : AV_LOG_INFO;
+            av_log(p, level, "%f\n", x);
+            return x;
+        }
+        case e_random:{
+            int idx= av_clip(eval_expr(p, e->param[0]), 0, VARS-1);
+            uint64_t r= isnan(p->var[idx]) ? 0 : p->var[idx];
+            r= r*1664525+1013904223;
+            p->var[idx]= r;
+            return e->value * (r * (1.0/UINT64_MAX));
+        }
+        case e_while: {
+            double d = NAN;
+            while (eval_expr(p, e->param[0]))
+                d=eval_expr(p, e->param[1]);
+            return d;
+        }
+        case e_taylor: {
+            double t = 1, d = 0, v;
+            double x = eval_expr(p, e->param[1]);
+            int id = e->param[2] ? av_clip(eval_expr(p, e->param[2]), 0, VARS-1) : 0;
+            int i;
+            double var0 = p->var[id];
+            for(i=0; i<1000; i++) {
+                double ld = d;
+                p->var[id] = i;
+                v = eval_expr(p, e->param[0]);
+                d += t*v;
+                if(ld==d && v)
+                    break;
+                t *= x / (i+1);
+            }
+            p->var[id] = var0;
+            return d;
+        }
+        case e_root: {
+            int i, j;
+            double low = -1, high = -1, v, low_v = -DBL_MAX, high_v = DBL_MAX;
+            double var0 = p->var[0];
+            double x_max = eval_expr(p, e->param[1]);
+            for(i=-1; i<1024; i++) {
+                if(i<255) {
+                    p->var[0] = ff_reverse[i&255]*x_max/255;
+                } else {
+                    p->var[0] = x_max*pow(0.9, i-255);
+                    if (i&1) p->var[0] *= -1;
+                    if (i&2) p->var[0] += low;
+                    else     p->var[0] += high;
+                }
+                v = eval_expr(p, e->param[0]);
+                if (v<=0 && v>low_v) {
+                    low    = p->var[0];
+                    low_v  = v;
+                }
+                if (v>=0 && v<high_v) {
+                    high   = p->var[0];
+                    high_v = v;
+                }
+                if (low>=0 && high>=0){
+                    for (j=0; j<1000; j++) {
+                        p->var[0] = (low+high)*0.5;
+                        if (low == p->var[0] || high == p->var[0])
+                            break;
+                        v = eval_expr(p, e->param[0]);
+                        if (v<=0) low = p->var[0];
+                        if (v>=0) high= p->var[0];
+                        if (isnan(v)) {
+                            low = high = v;
+                            break;
+                        }
+                    }
+                    break;
+                }
+            }
+            p->var[0] = var0;
+            return -low_v<high_v ? low : high;
+        }
+        default: {
+            double d = eval_expr(p, e->param[0]);
+            double d2 = eval_expr(p, e->param[1]);
+            switch (e->type) {
+                case e_mod: return e->value * (d - floor((!CONFIG_FTRAPV || d2) ? d / d2 : d * INFINITY) * d2);
+                case e_gcd: return e->value * av_gcd(d,d2);
+                case e_max: return e->value * (d >  d2 ?   d : d2);
+                case e_min: return e->value * (d <  d2 ?   d : d2);
+                case e_eq:  return e->value * (d == d2 ? 1.0 : 0.0);
+                case e_gt:  return e->value * (d >  d2 ? 1.0 : 0.0);
+                case e_gte: return e->value * (d >= d2 ? 1.0 : 0.0);
+                case e_lt:  return e->value * (d <  d2 ? 1.0 : 0.0);
+                case e_lte: return e->value * (d <= d2 ? 1.0 : 0.0);
+                case e_pow: return e->value * pow(d, d2);
+                case e_mul: return e->value * (d * d2);
+                case e_div: return e->value * ((!CONFIG_FTRAPV || d2 ) ? (d / d2) : d * INFINITY);
+                case e_add: return e->value * (d + d2);
+                case e_last:return e->value * d2;
+                case e_st : return e->value * (p->var[av_clip(d, 0, VARS-1)]= d2);
+                case e_hypot:return e->value * hypot(d, d2);
+                case e_atan2:return e->value * atan2(d, d2);
+                case e_bitand: return isnan(d) || isnan(d2) ? NAN : e->value * ((long int)d & (long int)d2);
+                case e_bitor:  return isnan(d) || isnan(d2) ? NAN : e->value * ((long int)d | (long int)d2);
+            }
+        }
+    }
+    return NAN;
+}
+
+static int parse_expr(AVExpr **e, Parser *p);
+
+void av_expr_free(AVExpr *e)
+{
+    if (!e) return;
+    av_expr_free(e->param[0]);
+    av_expr_free(e->param[1]);
+    av_expr_free(e->param[2]);
+    av_freep(&e->var);
+    av_freep(&e);
+}
+
+static int parse_primary(AVExpr **e, Parser *p)
+{
+    AVExpr *d = av_mallocz(sizeof(AVExpr));
+    char *next = p->s, *s0 = p->s;
+    int ret, i;
+
+    if (!d)
+        return AVERROR(ENOMEM);
+
+    /* number */
+    d->value = av_strtod(p->s, &next);
+    if (next != p->s) {
+        d->type = e_value;
+        p->s= next;
+        *e = d;
+        return 0;
+    }
+    d->value = 1;
+
+    /* named constants */
+    for (i=0; p->const_names && p->const_names[i]; i++) {
+        if (strmatch(p->s, p->const_names[i])) {
+            p->s+= strlen(p->const_names[i]);
+            d->type = e_const;
+            d->a.const_index = i;
+            *e = d;
+            return 0;
+        }
+    }
+    for (i = 0; i < FF_ARRAY_ELEMS(constants); i++) {
+        if (strmatch(p->s, constants[i].name)) {
+            p->s += strlen(constants[i].name);
+            d->type = e_value;
+            d->value = constants[i].value;
+            *e = d;
+            return 0;
+        }
+    }
+
+    p->s= strchr(p->s, '(');
+    if (!p->s) {
+        av_log(p, AV_LOG_ERROR, "Undefined constant or missing '(' in '%s'\n", s0);
+        p->s= next;
+        av_expr_free(d);
+        return AVERROR(EINVAL);
+    }
+    p->s++; // "("
+    if (*next == '(') { // special case do-nothing
+        av_freep(&d);
+        if ((ret = parse_expr(&d, p)) < 0)
+            return ret;
+        if (p->s[0] != ')') {
+            av_log(p, AV_LOG_ERROR, "Missing ')' in '%s'\n", s0);
+            av_expr_free(d);
+            return AVERROR(EINVAL);
+        }
+        p->s++; // ")"
+        *e = d;
+        return 0;
+    }
+    if ((ret = parse_expr(&(d->param[0]), p)) < 0) {
+        av_expr_free(d);
+        return ret;
+    }
+    if (p->s[0]== ',') {
+        p->s++; // ","
+        parse_expr(&d->param[1], p);
+    }
+    if (p->s[0]== ',') {
+        p->s++; // ","
+        parse_expr(&d->param[2], p);
+    }
+    if (p->s[0] != ')') {
+        av_log(p, AV_LOG_ERROR, "Missing ')' or too many args in '%s'\n", s0);
+        av_expr_free(d);
+        return AVERROR(EINVAL);
+    }
+    p->s++; // ")"
+
+    d->type = e_func0;
+         if (strmatch(next, "sinh"  )) d->a.func0 = sinh;
+    else if (strmatch(next, "cosh"  )) d->a.func0 = cosh;
+    else if (strmatch(next, "tanh"  )) d->a.func0 = tanh;
+    else if (strmatch(next, "sin"   )) d->a.func0 = sin;
+    else if (strmatch(next, "cos"   )) d->a.func0 = cos;
+    else if (strmatch(next, "tan"   )) d->a.func0 = tan;
+    else if (strmatch(next, "atan"  )) d->a.func0 = atan;
+    else if (strmatch(next, "asin"  )) d->a.func0 = asin;
+    else if (strmatch(next, "acos"  )) d->a.func0 = acos;
+    else if (strmatch(next, "exp"   )) d->a.func0 = exp;
+    else if (strmatch(next, "log"   )) d->a.func0 = log;
+    else if (strmatch(next, "abs"   )) d->a.func0 = fabs;
+    else if (strmatch(next, "time"  )) d->a.func0 = etime;
+    else if (strmatch(next, "squish")) d->type = e_squish;
+    else if (strmatch(next, "gauss" )) d->type = e_gauss;
+    else if (strmatch(next, "mod"   )) d->type = e_mod;
+    else if (strmatch(next, "max"   )) d->type = e_max;
+    else if (strmatch(next, "min"   )) d->type = e_min;
+    else if (strmatch(next, "eq"    )) d->type = e_eq;
+    else if (strmatch(next, "gte"   )) d->type = e_gte;
+    else if (strmatch(next, "gt"    )) d->type = e_gt;
+    else if (strmatch(next, "lte"   )) d->type = e_lte;
+    else if (strmatch(next, "lt"    )) d->type = e_lt;
+    else if (strmatch(next, "ld"    )) d->type = e_ld;
+    else if (strmatch(next, "isnan" )) d->type = e_isnan;
+    else if (strmatch(next, "isinf" )) d->type = e_isinf;
+    else if (strmatch(next, "st"    )) d->type = e_st;
+    else if (strmatch(next, "while" )) d->type = e_while;
+    else if (strmatch(next, "taylor")) d->type = e_taylor;
+    else if (strmatch(next, "root"  )) d->type = e_root;
+    else if (strmatch(next, "floor" )) d->type = e_floor;
+    else if (strmatch(next, "ceil"  )) d->type = e_ceil;
+    else if (strmatch(next, "trunc" )) d->type = e_trunc;
+    else if (strmatch(next, "round" )) d->type = e_round;
+    else if (strmatch(next, "sqrt"  )) d->type = e_sqrt;
+    else if (strmatch(next, "not"   )) d->type = e_not;
+    else if (strmatch(next, "pow"   )) d->type = e_pow;
+    else if (strmatch(next, "print" )) d->type = e_print;
+    else if (strmatch(next, "random")) d->type = e_random;
+    else if (strmatch(next, "hypot" )) d->type = e_hypot;
+    else if (strmatch(next, "gcd"   )) d->type = e_gcd;
+    else if (strmatch(next, "if"    )) d->type = e_if;
+    else if (strmatch(next, "ifnot" )) d->type = e_ifnot;
+    else if (strmatch(next, "bitand")) d->type = e_bitand;
+    else if (strmatch(next, "bitor" )) d->type = e_bitor;
+    else if (strmatch(next, "between"))d->type = e_between;
+    else if (strmatch(next, "clip"  )) d->type = e_clip;
+    else if (strmatch(next, "atan2" )) d->type = e_atan2;
+    else if (strmatch(next, "lerp"  )) d->type = e_lerp;
+    else {
+        for (i=0; p->func1_names && p->func1_names[i]; i++) {
+            if (strmatch(next, p->func1_names[i])) {
+                d->a.func1 = p->funcs1[i];
+                d->type = e_func1;
+                *e = d;
+                return 0;
+            }
+        }
+
+        for (i=0; p->func2_names && p->func2_names[i]; i++) {
+            if (strmatch(next, p->func2_names[i])) {
+                d->a.func2 = p->funcs2[i];
+                d->type = e_func2;
+                *e = d;
+                return 0;
+            }
+        }
+
+        av_log(p, AV_LOG_ERROR, "Unknown function in '%s'\n", s0);
+        av_expr_free(d);
+        return AVERROR(EINVAL);
+    }
+
+    *e = d;
+    return 0;
+}
+
+static AVExpr *make_eval_expr(int type, int value, AVExpr *p0, AVExpr *p1)
+{
+    AVExpr *e = av_mallocz(sizeof(AVExpr));
+    if (!e)
+        return NULL;
+    e->type     =type   ;
+    e->value    =value  ;
+    e->param[0] =p0     ;
+    e->param[1] =p1     ;
+    return e;
+}
+
+static int parse_pow(AVExpr **e, Parser *p, int *sign)
+{
+    *sign= (*p->s == '+') - (*p->s == '-');
+    p->s += *sign&1;
+    return parse_primary(e, p);
+}
+
+static int parse_dB(AVExpr **e, Parser *p, int *sign)
+{
+    /* do not filter out the negative sign when parsing a dB value.
+       for example, -3dB is not the same as -(3dB) */
+    if (*p->s == '-') {
+        char *next;
+        double av_unused ignored = strtod(p->s, &next);
+        if (next != p->s && next[0] == 'd' && next[1] == 'B') {
+            *sign = 0;
+            return parse_primary(e, p);
+        }
+    }
+    return parse_pow(e, p, sign);
+}
+
+static int parse_factor(AVExpr **e, Parser *p)
+{
+    int sign, sign2, ret;
+    AVExpr *e0, *e1, *e2;
+    if ((ret = parse_dB(&e0, p, &sign)) < 0)
+        return ret;
+    while(p->s[0]=='^'){
+        e1 = e0;
+        p->s++;
+        if ((ret = parse_dB(&e2, p, &sign2)) < 0) {
+            av_expr_free(e1);
+            return ret;
+        }
+        e0 = make_eval_expr(e_pow, 1, e1, e2);
+        if (!e0) {
+            av_expr_free(e1);
+            av_expr_free(e2);
+            return AVERROR(ENOMEM);
+        }
+        if (e0->param[1]) e0->param[1]->value *= (sign2|1);
+    }
+    if (e0) e0->value *= (sign|1);
+
+    *e = e0;
+    return 0;
+}
+
+static int parse_term(AVExpr **e, Parser *p)
+{
+    int ret;
+    AVExpr *e0, *e1, *e2;
+    if ((ret = parse_factor(&e0, p)) < 0)
+        return ret;
+    while (p->s[0]=='*' || p->s[0]=='/') {
+        int c= *p->s++;
+        e1 = e0;
+        if ((ret = parse_factor(&e2, p)) < 0) {
+            av_expr_free(e1);
+            return ret;
+        }
+        e0 = make_eval_expr(c == '*' ? e_mul : e_div, 1, e1, e2);
+        if (!e0) {
+            av_expr_free(e1);
+            av_expr_free(e2);
+            return AVERROR(ENOMEM);
+        }
+    }
+    *e = e0;
+    return 0;
+}
+
+static int parse_subexpr(AVExpr **e, Parser *p)
+{
+    int ret;
+    AVExpr *e0, *e1, *e2;
+    if ((ret = parse_term(&e0, p)) < 0)
+        return ret;
+    while (*p->s == '+' || *p->s == '-') {
+        e1 = e0;
+        if ((ret = parse_term(&e2, p)) < 0) {
+            av_expr_free(e1);
+            return ret;
+        }
+        e0 = make_eval_expr(e_add, 1, e1, e2);
+        if (!e0) {
+            av_expr_free(e1);
+            av_expr_free(e2);
+            return AVERROR(ENOMEM);
+        }
+    };
+
+    *e = e0;
+    return 0;
+}
+
+static int parse_expr(AVExpr **e, Parser *p)
+{
+    int ret;
+    AVExpr *e0, *e1, *e2;
+    if (p->stack_index <= 0) //protect against stack overflows
+        return AVERROR(EINVAL);
+    p->stack_index--;
+
+    if ((ret = parse_subexpr(&e0, p)) < 0)
+        return ret;
+    while (*p->s == ';') {
+        p->s++;
+        e1 = e0;
+        if ((ret = parse_subexpr(&e2, p)) < 0) {
+            av_expr_free(e1);
+            return ret;
+        }
+        e0 = make_eval_expr(e_last, 1, e1, e2);
+        if (!e0) {
+            av_expr_free(e1);
+            av_expr_free(e2);
+            return AVERROR(ENOMEM);
+        }
+    };
+
+    p->stack_index++;
+    *e = e0;
+    return 0;
+}
+
+static int verify_expr(AVExpr *e)
+{
+    if (!e) return 0;
+    switch (e->type) {
+        case e_value:
+        case e_const: return 1;
+        case e_func0:
+        case e_func1:
+        case e_squish:
+        case e_ld:
+        case e_gauss:
+        case e_isnan:
+        case e_isinf:
+        case e_floor:
+        case e_ceil:
+        case e_trunc:
+        case e_round:
+        case e_sqrt:
+        case e_not:
+        case e_random:
+            return verify_expr(e->param[0]) && !e->param[1];
+        case e_print:
+            return verify_expr(e->param[0])
+                   && (!e->param[1] || verify_expr(e->param[1]));
+        case e_if:
+        case e_ifnot:
+        case e_taylor:
+            return verify_expr(e->param[0]) && verify_expr(e->param[1])
+                   && (!e->param[2] || verify_expr(e->param[2]));
+        case e_between:
+        case e_clip:
+        case e_lerp:
+            return verify_expr(e->param[0]) &&
+                   verify_expr(e->param[1]) &&
+                   verify_expr(e->param[2]);
+        default: return verify_expr(e->param[0]) && verify_expr(e->param[1]) && !e->param[2];
+    }
+}
+
+int av_expr_parse(AVExpr **expr, const char *s,
+                  const char * const *const_names,
+                  const char * const *func1_names, double (* const *funcs1)(void *, double),
+                  const char * const *func2_names, double (* const *funcs2)(void *, double, double),
+                  int log_offset, void *log_ctx)
+{
+    Parser p = { 0 };
+    AVExpr *e = NULL;
+    char *w = av_malloc(strlen(s) + 1);
+    char *wp = w;
+    const char *s0 = s;
+    int ret = 0;
+
+    if (!w)
+        return AVERROR(ENOMEM);
+
+    while (*s)
+        if (!av_isspace(*s++)) *wp++ = s[-1];
+    *wp++ = 0;
+
+    p.class      = &eval_class;
+    p.stack_index=100;
+    p.s= w;
+    p.const_names = const_names;
+    p.funcs1      = funcs1;
+    p.func1_names = func1_names;
+    p.funcs2      = funcs2;
+    p.func2_names = func2_names;
+    p.log_offset = log_offset;
+    p.log_ctx    = log_ctx;
+
+    if ((ret = parse_expr(&e, &p)) < 0)
+        goto end;
+    if (*p.s) {
+        av_log(&p, AV_LOG_ERROR, "Invalid chars '%s' at the end of expression '%s'\n", p.s, s0);
+        ret = AVERROR(EINVAL);
+        goto end;
+    }
+    if (!verify_expr(e)) {
+        ret = AVERROR(EINVAL);
+        goto end;
+    }
+    e->var= av_mallocz(sizeof(double) *VARS);
+    if (!e->var) {
+        ret = AVERROR(ENOMEM);
+        goto end;
+    }
+    *expr = e;
+    e = NULL;
+end:
+    av_expr_free(e);
+    av_free(w);
+    return ret;
+}
+
+double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
+{
+    Parser p = { 0 };
+    p.var= e->var;
+
+    p.const_values = const_values;
+    p.opaque     = opaque;
+    return eval_expr(&p, e);
+}
+
+int av_expr_parse_and_eval(double *d, const char *s,
+                           const char * const *const_names, const double *const_values,
+                           const char * const *func1_names, double (* const *funcs1)(void *, double),
+                           const char * const *func2_names, double (* const *funcs2)(void *, double, double),
+                           void *opaque, int log_offset, void *log_ctx)
+{
+    AVExpr *e = NULL;
+    int ret = av_expr_parse(&e, s, const_names, func1_names, funcs1, func2_names, funcs2, log_offset, log_ctx);
+
+    if (ret < 0) {
+        *d = NAN;
+        return ret;
+    }
+    *d = av_expr_eval(e, const_values, opaque);
+    av_expr_free(e);
+    return isnan(*d) ? AVERROR(EINVAL) : 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/eval.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/eval.h
new file mode 100644
index 000000000..dacd22b96
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/eval.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * simple arithmetic expression evaluator
+ */
+
+#ifndef AVUTIL_EVAL_H
+#define AVUTIL_EVAL_H
+
+#include "avutil.h"
+
+typedef struct AVExpr AVExpr;
+
+/**
+ * Parse and evaluate an expression.
+ * Note, this is significantly slower than av_expr_eval().
+ *
+ * @param res a pointer to a double where is put the result value of
+ * the expression, or NAN in case of error
+ * @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)"
+ * @param const_names NULL terminated array of zero terminated strings of constant identifiers, for example {"PI", "E", 0}
+ * @param const_values a zero terminated array of values for the identifiers from const_names
+ * @param func1_names NULL terminated array of zero terminated strings of funcs1 identifiers
+ * @param funcs1 NULL terminated array of function pointers for functions which take 1 argument
+ * @param func2_names NULL terminated array of zero terminated strings of funcs2 identifiers
+ * @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments
+ * @param opaque a pointer which will be passed to all functions from funcs1 and funcs2
+ * @param log_ctx parent logging context
+ * @return >= 0 in case of success, a negative value corresponding to an
+ * AVERROR code otherwise
+ */
+int av_expr_parse_and_eval(double *res, const char *s,
+                           const char * const *const_names, const double *const_values,
+                           const char * const *func1_names, double (* const *funcs1)(void *, double),
+                           const char * const *func2_names, double (* const *funcs2)(void *, double, double),
+                           void *opaque, int log_offset, void *log_ctx);
+
+/**
+ * Parse an expression.
+ *
+ * @param expr a pointer where is put an AVExpr containing the parsed
+ * value in case of successful parsing, or NULL otherwise.
+ * The pointed to AVExpr must be freed with av_expr_free() by the user
+ * when it is not needed anymore.
+ * @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)"
+ * @param const_names NULL terminated array of zero terminated strings of constant identifiers, for example {"PI", "E", 0}
+ * @param func1_names NULL terminated array of zero terminated strings of funcs1 identifiers
+ * @param funcs1 NULL terminated array of function pointers for functions which take 1 argument
+ * @param func2_names NULL terminated array of zero terminated strings of funcs2 identifiers
+ * @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments
+ * @param log_ctx parent logging context
+ * @return >= 0 in case of success, a negative value corresponding to an
+ * AVERROR code otherwise
+ */
+int av_expr_parse(AVExpr **expr, const char *s,
+                  const char * const *const_names,
+                  const char * const *func1_names, double (* const *funcs1)(void *, double),
+                  const char * const *func2_names, double (* const *funcs2)(void *, double, double),
+                  int log_offset, void *log_ctx);
+
+/**
+ * Evaluate a previously parsed expression.
+ *
+ * @param const_values a zero terminated array of values for the identifiers from av_expr_parse() const_names
+ * @param opaque a pointer which will be passed to all functions from funcs1 and funcs2
+ * @return the value of the expression
+ */
+double av_expr_eval(AVExpr *e, const double *const_values, void *opaque);
+
+/**
+ * Free a parsed expression previously created with av_expr_parse().
+ */
+void av_expr_free(AVExpr *e);
+
+/**
+ * Parse the string in numstr and return its value as a double. If
+ * the string is empty, contains only whitespaces, or does not contain
+ * an initial substring that has the expected syntax for a
+ * floating-point number, no conversion is performed. In this case,
+ * returns a value of zero and the value returned in tail is the value
+ * of numstr.
+ *
+ * @param numstr a string representing a number, may contain one of
+ * the International System number postfixes, for example 'K', 'M',
+ * 'G'. If 'i' is appended after the postfix, powers of 2 are used
+ * instead of powers of 10. The 'B' postfix multiplies the value by
+ * 8, and can be appended after another postfix or used alone. This
+ * allows using for example 'KB', 'MiB', 'G' and 'B' as postfix.
+ * @param tail if non-NULL puts here the pointer to the char next
+ * after the last parsed character
+ */
+double av_strtod(const char *numstr, char **tail);
+
+#endif /* AVUTIL_EVAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/ffmath.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/ffmath.h
new file mode 100644
index 000000000..aad1347f2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/ffmath.h
@@ -0,0 +1,67 @@
+/*
+ * copyright (c) 2016 Ganesh Ajjanagadde <gajjanag@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * internal math functions header
+ */
+
+#ifndef AVUTIL_FFMATH_H
+#define AVUTIL_FFMATH_H
+
+#include "attributes.h"
+#include "libm.h"
+
+/**
+ * Compute 10^x for floating point values. Note: this function is by no means
+ * "correctly rounded", and is meant as a fast, reasonably accurate approximation.
+ * For instance, maximum relative error for the double precision variant is
+ * ~ 1e-13 for very small and very large values.
+ * This is ~2x faster than GNU libm's approach, which is still off by 2ulp on
+ * some inputs.
+ * @param x exponent
+ * @return 10^x
+ */
+static av_always_inline double ff_exp10(double x)
+{
+    return exp2(M_LOG2_10 * x);
+}
+
+static av_always_inline float ff_exp10f(float x)
+{
+    return exp2f(M_LOG2_10 * x);
+}
+
+/**
+ * Compute x^y for floating point x, y. Note: this function is faster than the
+ * libm variant due to mainly 2 reasons:
+ * 1. It does not handle any edge cases. In particular, this is only guaranteed
+ * to work correctly for x > 0.
+ * 2. It is not as accurate as a standard nearly "correctly rounded" libm variant.
+ * @param x base
+ * @param y exponent
+ * @return x^y
+ */
+static av_always_inline float ff_fast_powf(float x, float y)
+{
+    return expf(logf(x) * y);
+}
+
+#endif /* AVUTIL_FFMATH_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/fifo.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/fifo.c
new file mode 100644
index 000000000..1060aedf1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/fifo.c
@@ -0,0 +1,240 @@
+/*
+ * a very simple circular buffer FIFO implementation
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ * Copyright (c) 2006 Roman Shaposhnik
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avassert.h"
+#include "common.h"
+#include "fifo.h"
+
+static AVFifoBuffer *fifo_alloc_common(void *buffer, size_t size)
+{
+    AVFifoBuffer *f;
+    if (!buffer)
+        return NULL;
+    f = av_mallocz(sizeof(AVFifoBuffer));
+    if (!f) {
+        av_free(buffer);
+        return NULL;
+    }
+    f->buffer = buffer;
+    f->end    = f->buffer + size;
+    av_fifo_reset(f);
+    return f;
+}
+
+AVFifoBuffer *av_fifo_alloc(unsigned int size)
+{
+    void *buffer = av_malloc(size);
+    return fifo_alloc_common(buffer, size);
+}
+
+AVFifoBuffer *av_fifo_alloc_array(size_t nmemb, size_t size)
+{
+    void *buffer = av_malloc_array(nmemb, size);
+    return fifo_alloc_common(buffer, nmemb * size);
+}
+
+void av_fifo_free(AVFifoBuffer *f)
+{
+    if (f) {
+        av_freep(&f->buffer);
+        av_free(f);
+    }
+}
+
+void av_fifo_freep(AVFifoBuffer **f)
+{
+    if (f) {
+        av_fifo_free(*f);
+        *f = NULL;
+    }
+}
+
+void av_fifo_reset(AVFifoBuffer *f)
+{
+    f->wptr = f->rptr = f->buffer;
+    f->wndx = f->rndx = 0;
+}
+
+int av_fifo_size(const AVFifoBuffer *f)
+{
+    return (uint32_t)(f->wndx - f->rndx);
+}
+
+int av_fifo_space(const AVFifoBuffer *f)
+{
+    return f->end - f->buffer - av_fifo_size(f);
+}
+
+int av_fifo_realloc2(AVFifoBuffer *f, unsigned int new_size)
+{
+    unsigned int old_size = f->end - f->buffer;
+
+    if (old_size < new_size) {
+        int len          = av_fifo_size(f);
+        AVFifoBuffer *f2 = av_fifo_alloc(new_size);
+
+        if (!f2)
+            return AVERROR(ENOMEM);
+        av_fifo_generic_read(f, f2->buffer, len, NULL);
+        f2->wptr += len;
+        f2->wndx += len;
+        av_free(f->buffer);
+        *f = *f2;
+        av_free(f2);
+    }
+    return 0;
+}
+
+int av_fifo_grow(AVFifoBuffer *f, unsigned int size)
+{
+    unsigned int old_size = f->end - f->buffer;
+    if(size + (unsigned)av_fifo_size(f) < size)
+        return AVERROR(EINVAL);
+
+    size += av_fifo_size(f);
+
+    if (old_size < size)
+        return av_fifo_realloc2(f, FFMAX(size, 2*old_size));
+    return 0;
+}
+
+/* src must NOT be const as it can be a context for func that may need
+ * updating (like a pointer or byte counter) */
+int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size,
+                          int (*func)(void *, void *, int))
+{
+    int total = size;
+    uint32_t wndx= f->wndx;
+    uint8_t *wptr= f->wptr;
+
+    do {
+        int len = FFMIN(f->end - wptr, size);
+        if (func) {
+            len = func(src, wptr, len);
+            if (len <= 0)
+                break;
+        } else {
+            memcpy(wptr, src, len);
+            src = (uint8_t *)src + len;
+        }
+// Write memory barrier needed for SMP here in theory
+        wptr += len;
+        if (wptr >= f->end)
+            wptr = f->buffer;
+        wndx    += len;
+        size    -= len;
+    } while (size > 0);
+    f->wndx= wndx;
+    f->wptr= wptr;
+    return total - size;
+}
+
+int av_fifo_generic_peek_at(AVFifoBuffer *f, void *dest, int offset, int buf_size, void (*func)(void*, void*, int))
+{
+    uint8_t *rptr = f->rptr;
+
+    av_assert2(offset >= 0);
+
+    /*
+     * *ndx are indexes modulo 2^32, they are intended to overflow,
+     * to handle *ndx greater than 4gb.
+     */
+    av_assert2(buf_size + (unsigned)offset <= f->wndx - f->rndx);
+
+    if (offset >= f->end - rptr)
+        rptr += offset - (f->end - f->buffer);
+    else
+        rptr += offset;
+
+    while (buf_size > 0) {
+        int len;
+
+        if (rptr >= f->end)
+            rptr -= f->end - f->buffer;
+
+        len = FFMIN(f->end - rptr, buf_size);
+        if (func)
+            func(dest, rptr, len);
+        else {
+            memcpy(dest, rptr, len);
+            dest = (uint8_t *)dest + len;
+        }
+
+        buf_size -= len;
+        rptr     += len;
+    }
+
+    return 0;
+}
+
+int av_fifo_generic_peek(AVFifoBuffer *f, void *dest, int buf_size,
+                         void (*func)(void *, void *, int))
+{
+// Read memory barrier needed for SMP here in theory
+    uint8_t *rptr = f->rptr;
+
+    do {
+        int len = FFMIN(f->end - rptr, buf_size);
+        if (func)
+            func(dest, rptr, len);
+        else {
+            memcpy(dest, rptr, len);
+            dest = (uint8_t *)dest + len;
+        }
+// memory barrier needed for SMP here in theory
+        rptr += len;
+        if (rptr >= f->end)
+            rptr -= f->end - f->buffer;
+        buf_size -= len;
+    } while (buf_size > 0);
+
+    return 0;
+}
+
+int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size,
+                         void (*func)(void *, void *, int))
+{
+// Read memory barrier needed for SMP here in theory
+    do {
+        int len = FFMIN(f->end - f->rptr, buf_size);
+        if (func)
+            func(dest, f->rptr, len);
+        else {
+            memcpy(dest, f->rptr, len);
+            dest = (uint8_t *)dest + len;
+        }
+// memory barrier needed for SMP here in theory
+        av_fifo_drain(f, len);
+        buf_size -= len;
+    } while (buf_size > 0);
+    return 0;
+}
+
+/** Discard data from the FIFO. */
+void av_fifo_drain(AVFifoBuffer *f, int size)
+{
+    av_assert2(av_fifo_size(f) >= size);
+    f->rptr += size;
+    if (f->rptr >= f->end)
+        f->rptr -= f->end - f->buffer;
+    f->rndx += size;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/fifo.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/fifo.h
new file mode 100644
index 000000000..dc7bc6f0d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/fifo.h
@@ -0,0 +1,179 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * a very simple circular buffer FIFO implementation
+ */
+
+#ifndef AVUTIL_FIFO_H
+#define AVUTIL_FIFO_H
+
+#include <stdint.h>
+#include "avutil.h"
+#include "attributes.h"
+
+typedef struct AVFifoBuffer {
+    uint8_t *buffer;
+    uint8_t *rptr, *wptr, *end;
+    uint32_t rndx, wndx;
+} AVFifoBuffer;
+
+/**
+ * Initialize an AVFifoBuffer.
+ * @param size of FIFO
+ * @return AVFifoBuffer or NULL in case of memory allocation failure
+ */
+AVFifoBuffer *av_fifo_alloc(unsigned int size);
+
+/**
+ * Initialize an AVFifoBuffer.
+ * @param nmemb number of elements
+ * @param size  size of the single element
+ * @return AVFifoBuffer or NULL in case of memory allocation failure
+ */
+AVFifoBuffer *av_fifo_alloc_array(size_t nmemb, size_t size);
+
+/**
+ * Free an AVFifoBuffer.
+ * @param f AVFifoBuffer to free
+ */
+void av_fifo_free(AVFifoBuffer *f);
+
+/**
+ * Free an AVFifoBuffer and reset pointer to NULL.
+ * @param f AVFifoBuffer to free
+ */
+void av_fifo_freep(AVFifoBuffer **f);
+
+/**
+ * Reset the AVFifoBuffer to the state right after av_fifo_alloc, in particular it is emptied.
+ * @param f AVFifoBuffer to reset
+ */
+void av_fifo_reset(AVFifoBuffer *f);
+
+/**
+ * Return the amount of data in bytes in the AVFifoBuffer, that is the
+ * amount of data you can read from it.
+ * @param f AVFifoBuffer to read from
+ * @return size
+ */
+int av_fifo_size(const AVFifoBuffer *f);
+
+/**
+ * Return the amount of space in bytes in the AVFifoBuffer, that is the
+ * amount of data you can write into it.
+ * @param f AVFifoBuffer to write into
+ * @return size
+ */
+int av_fifo_space(const AVFifoBuffer *f);
+
+/**
+ * Feed data at specific position from an AVFifoBuffer to a user-supplied callback.
+ * Similar as av_fifo_gereric_read but without discarding data.
+ * @param f AVFifoBuffer to read from
+ * @param offset offset from current read position
+ * @param buf_size number of bytes to read
+ * @param func generic read function
+ * @param dest data destination
+ */
+int av_fifo_generic_peek_at(AVFifoBuffer *f, void *dest, int offset, int buf_size, void (*func)(void*, void*, int));
+
+/**
+ * Feed data from an AVFifoBuffer to a user-supplied callback.
+ * Similar as av_fifo_gereric_read but without discarding data.
+ * @param f AVFifoBuffer to read from
+ * @param buf_size number of bytes to read
+ * @param func generic read function
+ * @param dest data destination
+ */
+int av_fifo_generic_peek(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int));
+
+/**
+ * Feed data from an AVFifoBuffer to a user-supplied callback.
+ * @param f AVFifoBuffer to read from
+ * @param buf_size number of bytes to read
+ * @param func generic read function
+ * @param dest data destination
+ */
+int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int));
+
+/**
+ * Feed data from a user-supplied callback to an AVFifoBuffer.
+ * @param f AVFifoBuffer to write to
+ * @param src data source; non-const since it may be used as a
+ * modifiable context by the function defined in func
+ * @param size number of bytes to write
+ * @param func generic write function; the first parameter is src,
+ * the second is dest_buf, the third is dest_buf_size.
+ * func must return the number of bytes written to dest_buf, or <= 0 to
+ * indicate no more data available to write.
+ * If func is NULL, src is interpreted as a simple byte array for source data.
+ * @return the number of bytes written to the FIFO
+ */
+int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int (*func)(void*, void*, int));
+
+/**
+ * Resize an AVFifoBuffer.
+ * In case of reallocation failure, the old FIFO is kept unchanged.
+ *
+ * @param f AVFifoBuffer to resize
+ * @param size new AVFifoBuffer size in bytes
+ * @return <0 for failure, >=0 otherwise
+ */
+int av_fifo_realloc2(AVFifoBuffer *f, unsigned int size);
+
+/**
+ * Enlarge an AVFifoBuffer.
+ * In case of reallocation failure, the old FIFO is kept unchanged.
+ * The new fifo size may be larger than the requested size.
+ *
+ * @param f AVFifoBuffer to resize
+ * @param additional_space the amount of space in bytes to allocate in addition to av_fifo_size()
+ * @return <0 for failure, >=0 otherwise
+ */
+int av_fifo_grow(AVFifoBuffer *f, unsigned int additional_space);
+
+/**
+ * Read and discard the specified amount of data from an AVFifoBuffer.
+ * @param f AVFifoBuffer to read from
+ * @param size amount of data to read in bytes
+ */
+void av_fifo_drain(AVFifoBuffer *f, int size);
+
+/**
+ * Return a pointer to the data stored in a FIFO buffer at a certain offset.
+ * The FIFO buffer is not modified.
+ *
+ * @param f    AVFifoBuffer to peek at, f must be non-NULL
+ * @param offs an offset in bytes, its absolute value must be less
+ *             than the used buffer size or the returned pointer will
+ *             point outside to the buffer data.
+ *             The used buffer size can be checked with av_fifo_size().
+ */
+static inline uint8_t *av_fifo_peek2(const AVFifoBuffer *f, int offs)
+{
+    uint8_t *ptr = f->rptr + offs;
+    if (ptr >= f->end)
+        ptr = f->buffer + (ptr - f->end);
+    else if (ptr < f->buffer)
+        ptr = f->end - (f->buffer - ptr);
+    return ptr;
+}
+
+#endif /* AVUTIL_FIFO_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/file.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/file.c
new file mode 100644
index 000000000..d946085b2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/file.c
@@ -0,0 +1,154 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "file.h"
+#include "internal.h"
+#include "log.h"
+#include "mem.h"
+#include <fcntl.h>
+#include <sys/stat.h>
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#if HAVE_IO_H
+#include <io.h>
+#endif
+#if HAVE_MMAP
+#include <sys/mman.h>
+#elif HAVE_MAPVIEWOFFILE
+#include <windows.h>
+#endif
+
+typedef struct FileLogContext {
+    const AVClass *class;
+    int   log_offset;
+    void *log_ctx;
+} FileLogContext;
+
+static const AVClass file_log_ctx_class = {
+    .class_name                = "FILE",
+    .item_name                 = av_default_item_name,
+    .option                    = NULL,
+    .version                   = LIBAVUTIL_VERSION_INT,
+    .log_level_offset_offset   = offsetof(FileLogContext, log_offset),
+    .parent_log_context_offset = offsetof(FileLogContext, log_ctx),
+};
+
+int av_file_map(const char *filename, uint8_t **bufptr, size_t *size,
+                int log_offset, void *log_ctx)
+{
+    FileLogContext file_log_ctx = { &file_log_ctx_class, log_offset, log_ctx };
+    int err, fd = avpriv_open(filename, O_RDONLY);
+    struct stat st;
+    av_unused void *ptr;
+    off_t off_size;
+    char errbuf[128];
+    *bufptr = NULL;
+
+    if (fd < 0) {
+        err = AVERROR(errno);
+        av_strerror(err, errbuf, sizeof(errbuf));
+        av_log(&file_log_ctx, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename, errbuf);
+        return err;
+    }
+
+    if (fstat(fd, &st) < 0) {
+        err = AVERROR(errno);
+        av_strerror(err, errbuf, sizeof(errbuf));
+        av_log(&file_log_ctx, AV_LOG_ERROR, "Error occurred in fstat(): %s\n", errbuf);
+        close(fd);
+        return err;
+    }
+
+    off_size = st.st_size;
+    if (off_size > SIZE_MAX) {
+        av_log(&file_log_ctx, AV_LOG_ERROR,
+               "File size for file '%s' is too big\n", filename);
+        close(fd);
+        return AVERROR(EINVAL);
+    }
+    *size = off_size;
+
+    if (!*size) {
+        *bufptr = NULL;
+        goto out;
+    }
+
+#if HAVE_MMAP
+    ptr = mmap(NULL, *size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
+    if (ptr == MAP_FAILED) {
+        err = AVERROR(errno);
+        av_strerror(err, errbuf, sizeof(errbuf));
+        av_log(&file_log_ctx, AV_LOG_ERROR, "Error occurred in mmap(): %s\n", errbuf);
+        close(fd);
+        return err;
+    }
+    *bufptr = ptr;
+#elif HAVE_MAPVIEWOFFILE
+    {
+        HANDLE mh, fh = (HANDLE)_get_osfhandle(fd);
+
+        mh = CreateFileMapping(fh, NULL, PAGE_READONLY, 0, 0, NULL);
+        if (!mh) {
+            av_log(&file_log_ctx, AV_LOG_ERROR, "Error occurred in CreateFileMapping()\n");
+            close(fd);
+            return -1;
+        }
+
+        ptr = MapViewOfFile(mh, FILE_MAP_READ, 0, 0, *size);
+        CloseHandle(mh);
+        if (!ptr) {
+            av_log(&file_log_ctx, AV_LOG_ERROR, "Error occurred in MapViewOfFile()\n");
+            close(fd);
+            return -1;
+        }
+
+        *bufptr = ptr;
+    }
+#else
+    *bufptr = av_malloc(*size);
+    if (!*bufptr) {
+        av_log(&file_log_ctx, AV_LOG_ERROR, "Memory allocation error occurred\n");
+        close(fd);
+        return AVERROR(ENOMEM);
+    }
+    read(fd, *bufptr, *size);
+#endif
+
+out:
+    close(fd);
+    return 0;
+}
+
+void av_file_unmap(uint8_t *bufptr, size_t size)
+{
+    if (!size)
+        return;
+#if HAVE_MMAP
+    munmap(bufptr, size);
+#elif HAVE_MAPVIEWOFFILE
+    UnmapViewOfFile(bufptr);
+#else
+    av_free(bufptr);
+#endif
+}
+
+int av_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx) {
+    return avpriv_tempfile(prefix, filename, log_offset, log_ctx);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/file.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/file.h
new file mode 100644
index 000000000..3ef4a6022
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/file.h
@@ -0,0 +1,71 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_FILE_H
+#define AVUTIL_FILE_H
+
+#include <stdint.h>
+
+#include "avutil.h"
+
+/**
+ * @file
+ * Misc file utilities.
+ */
+
+/**
+ * Read the file with name filename, and put its content in a newly
+ * allocated buffer or map it with mmap() when available.
+ * In case of success set *bufptr to the read or mmapped buffer, and
+ * *size to the size in bytes of the buffer in *bufptr.
+ * Unlike mmap this function succeeds with zero sized files, in this
+ * case *bufptr will be set to NULL and *size will be set to 0.
+ * The returned buffer must be released with av_file_unmap().
+ *
+ * @param log_offset loglevel offset used for logging
+ * @param log_ctx context used for logging
+ * @return a non negative number in case of success, a negative value
+ * corresponding to an AVERROR error code in case of failure
+ */
+av_warn_unused_result
+int av_file_map(const char *filename, uint8_t **bufptr, size_t *size,
+                int log_offset, void *log_ctx);
+
+/**
+ * Unmap or free the buffer bufptr created by av_file_map().
+ *
+ * @param size size in bytes of bufptr, must be the same as returned
+ * by av_file_map()
+ */
+void av_file_unmap(uint8_t *bufptr, size_t size);
+
+/**
+ * Wrapper to work around the lack of mkstemp() on mingw.
+ * Also, tries to create file in /tmp first, if possible.
+ * *prefix can be a character constant; *filename will be allocated internally.
+ * @return file descriptor of opened file (or negative value corresponding to an
+ * AVERROR code on error)
+ * and opened file name in **filename.
+ * @note On very old libcs it is necessary to set a secure umask before
+ *       calling this, av_tempfile() can't call umask itself as it is used in
+ *       libraries and could interfere with the calling application.
+ * @deprecated as fd numbers cannot be passed saftely between libs on some platforms
+ */
+int av_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx);
+
+#endif /* AVUTIL_FILE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/file_open.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/file_open.c
new file mode 100644
index 000000000..cc302f2f7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/file_open.c
@@ -0,0 +1,190 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "internal.h"
+#include "mem.h"
+#include <stdarg.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#if HAVE_IO_H
+#include <io.h>
+#endif
+
+#ifdef _WIN32
+#undef open
+#undef lseek
+#undef stat
+#undef fstat
+#include <windows.h>
+#include <share.h>
+#include <errno.h>
+#include "wchar_filename.h"
+
+static int win32_open(const char *filename_utf8, int oflag, int pmode)
+{
+    int fd;
+    wchar_t *filename_w;
+
+    /* convert UTF-8 to wide chars */
+    if (utf8towchar(filename_utf8, &filename_w))
+        return -1;
+    if (!filename_w)
+        goto fallback;
+
+    fd = _wsopen(filename_w, oflag, SH_DENYNO, pmode);
+    av_freep(&filename_w);
+
+    if (fd != -1 || (oflag & O_CREAT))
+        return fd;
+
+fallback:
+    /* filename may be in CP_ACP */
+    return _sopen(filename_utf8, oflag, SH_DENYNO, pmode);
+}
+#define open win32_open
+#endif
+
+int avpriv_open(const char *filename, int flags, ...)
+{
+    int fd;
+    unsigned int mode = 0;
+    va_list ap;
+
+    va_start(ap, flags);
+    if (flags & O_CREAT)
+        mode = va_arg(ap, unsigned int);
+    va_end(ap);
+
+#ifdef O_CLOEXEC
+    flags |= O_CLOEXEC;
+#endif
+#ifdef O_NOINHERIT
+    flags |= O_NOINHERIT;
+#endif
+
+    fd = open(filename, flags, mode);
+#if HAVE_FCNTL
+    if (fd != -1) {
+        if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
+            av_log(NULL, AV_LOG_DEBUG, "Failed to set close on exec\n");
+    }
+#endif
+
+    return fd;
+}
+
+typedef struct FileLogContext {
+    const AVClass *class;
+    int   log_offset;
+    void *log_ctx;
+} FileLogContext;
+
+static const AVClass file_log_ctx_class = {
+    .class_name                = "TEMPFILE",
+    .item_name                 = av_default_item_name,
+    .option                    = NULL,
+    .version                   = LIBAVUTIL_VERSION_INT,
+    .log_level_offset_offset   = offsetof(FileLogContext, log_offset),
+    .parent_log_context_offset = offsetof(FileLogContext, log_ctx),
+};
+
+int avpriv_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx)
+{
+    FileLogContext file_log_ctx = { &file_log_ctx_class, log_offset, log_ctx };
+    int fd = -1;
+#if !HAVE_MKSTEMP
+    void *ptr= tempnam(NULL, prefix);
+    if(!ptr)
+        ptr= tempnam(".", prefix);
+    *filename = av_strdup(ptr);
+#undef free
+    free(ptr);
+#else
+    size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
+    *filename  = av_malloc(len);
+#endif
+    /* -----common section-----*/
+    if (!*filename) {
+        av_log(&file_log_ctx, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
+        return AVERROR(ENOMEM);
+    }
+#if !HAVE_MKSTEMP
+#   ifndef O_BINARY
+#       define O_BINARY 0
+#   endif
+#   ifndef O_EXCL
+#       define O_EXCL 0
+#   endif
+    fd = open(*filename, O_RDWR | O_BINARY | O_CREAT | O_EXCL, 0600);
+#else
+    snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
+    fd = mkstemp(*filename);
+#if defined(_WIN32) || defined (__ANDROID__) || defined(__DJGPP__)
+    if (fd < 0) {
+        snprintf(*filename, len, "./%sXXXXXX", prefix);
+        fd = mkstemp(*filename);
+    }
+#endif
+#endif
+    /* -----common section-----*/
+    if (fd < 0) {
+        int err = AVERROR(errno);
+        av_log(&file_log_ctx, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
+        av_freep(filename);
+        return err;
+    }
+    return fd; /* success */
+}
+
+FILE *av_fopen_utf8(const char *path, const char *mode)
+{
+    int fd;
+    int access;
+    const char *m = mode;
+
+    switch (*m++) {
+    case 'r': access = O_RDONLY; break;
+    case 'w': access = O_CREAT|O_WRONLY|O_TRUNC; break;
+    case 'a': access = O_CREAT|O_WRONLY|O_APPEND; break;
+    default :
+        errno = EINVAL;
+        return NULL;
+    }
+    while (*m) {
+        if (*m == '+') {
+            access &= ~(O_RDONLY | O_WRONLY);
+            access |= O_RDWR;
+        } else if (*m == 'b') {
+#ifdef O_BINARY
+            access |= O_BINARY;
+#endif
+        } else if (*m) {
+            errno = EINVAL;
+            return NULL;
+        }
+        m++;
+    }
+    fd = avpriv_open(path, access, 0666);
+    if (fd == -1)
+        return NULL;
+    return fdopen(fd, mode);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/fixed_dsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/fixed_dsp.c
new file mode 100644
index 000000000..8c018581d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/fixed_dsp.c
@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 2012
+ *      MIPS Technologies, Inc., California.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Author:  Nedeljko Babic (nedeljko.babic imgtec com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "fixed_dsp.h"
+
+static void vector_fmul_add_c(int *dst, const int *src0, const int *src1, const int *src2, int len){
+    int i;
+    int64_t accu;
+
+    for (i=0; i<len; i++) {
+        accu = (int64_t)src0[i] * src1[i];
+        dst[i] = src2[i] + (int)((accu + 0x40000000) >> 31);
+    }
+}
+
+static void vector_fmul_reverse_c(int *dst, const int *src0, const int *src1, int len)
+{
+    int i;
+    int64_t accu;
+
+    src1 += len-1;
+    for (i=0; i<len; i++) {
+        accu = (int64_t)src0[i] * src1[-i];
+        dst[i] = (int)((accu+0x40000000) >> 31);
+    }
+}
+
+static void vector_fmul_window_scaled_c(int16_t *dst, const int32_t *src0,
+                                       const int32_t *src1, const int32_t *win,
+                                       int len, uint8_t bits)
+{
+    int32_t s0, s1, wi, wj, i,j, round;
+
+    dst += len;
+    win += len;
+    src0+= len;
+    round = bits? 1 << (bits-1) : 0;
+
+    for (i=-len, j=len-1; i<0; i++, j--) {
+        s0 = src0[i];
+        s1 = src1[j];
+        wi = win[i];
+        wj = win[j];
+        dst[i] = av_clip_int16(((((int64_t)s0*wj - (int64_t)s1*wi + 0x40000000) >> 31) + round) >> bits);
+        dst[j] = av_clip_int16(((((int64_t)s0*wi + (int64_t)s1*wj + 0x40000000) >> 31) + round) >> bits);
+    }
+}
+
+static void vector_fmul_window_c(int32_t *dst, const int32_t *src0,
+                                       const int32_t *src1, const int32_t *win,
+                                       int len)
+{
+    int32_t s0, s1, wi, wj, i, j;
+
+    dst += len;
+    win += len;
+    src0+= len;
+
+    for (i=-len, j=len-1; i<0; i++, j--) {
+        s0 = src0[i];
+        s1 = src1[j];
+        wi = win[i];
+        wj = win[j];
+        dst[i] = ((int64_t)s0*wj - (int64_t)s1*wi + 0x40000000) >> 31;
+        dst[j] = ((int64_t)s0*wi + (int64_t)s1*wj + 0x40000000) >> 31;
+    }
+}
+
+static void vector_fmul_c(int *dst, const int *src0, const int *src1, int len)
+{
+    int i;
+    int64_t accu;
+
+    for (i = 0; i < len; i++){
+        accu = (int64_t)src0[i] * src1[i];
+        dst[i] = (int)((accu+0x40000000) >> 31);
+    }
+}
+
+static int scalarproduct_fixed_c(const int *v1, const int *v2, int len)
+{
+    /** p is initialized with 0x40000000 so that the proper rounding will occur
+      * at the end */
+    int64_t p = 0x40000000;
+    int i;
+
+    for (i = 0; i < len; i++)
+        p += (int64_t)v1[i] * v2[i];
+
+    return (int)(p >> 31);
+}
+
+static void butterflies_fixed_c(int *v1, int *v2, int len)
+{
+    int i;
+
+    for (i = 0; i < len; i++){
+        int t = v1[i] - v2[i];
+        v1[i] += v2[i];
+        v2[i] = t;
+    }
+}
+
+AVFixedDSPContext * avpriv_alloc_fixed_dsp(int bit_exact)
+{
+    AVFixedDSPContext * fdsp = av_malloc(sizeof(AVFixedDSPContext));
+
+    if (!fdsp)
+        return NULL;
+
+    fdsp->vector_fmul_window_scaled = vector_fmul_window_scaled_c;
+    fdsp->vector_fmul_window = vector_fmul_window_c;
+    fdsp->vector_fmul = vector_fmul_c;
+    fdsp->vector_fmul_add = vector_fmul_add_c;
+    fdsp->vector_fmul_reverse = vector_fmul_reverse_c;
+    fdsp->butterflies_fixed = butterflies_fixed_c;
+    fdsp->scalarproduct_fixed = scalarproduct_fixed_c;
+
+    if (ARCH_X86)
+        ff_fixed_dsp_init_x86(fdsp);
+
+    return fdsp;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/fixed_dsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/fixed_dsp.h
new file mode 100644
index 000000000..f554cb503
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/fixed_dsp.h
@@ -0,0 +1,205 @@
+/*
+ * Copyright (c) 2012
+ *      MIPS Technologies, Inc., California.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Author:  Nedeljko Babic (nbabic@mips.com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_FIXED_DSP_H
+#define AVUTIL_FIXED_DSP_H
+
+#include <stdint.h>
+#include "attributes.h"
+#include "common.h"
+#include "libavcodec/mathops.h"
+
+typedef struct AVFixedDSPContext {
+    /* Assume len is a multiple of 16, and arrays are 32-byte aligned */
+    /* Results of multiplications are scaled down by 31 bit (and rounded) if not
+     * stated otherwise */
+
+    /**
+     * Overlap/add with window function.
+     * Result is scaled down by "bits" bits.
+     * Used primarily by MDCT-based audio codecs.
+     * Source and destination vectors must overlap exactly or not at all.
+     *
+     * @param dst  result vector
+     *             constraints: 16-byte aligned
+     * @param src0 first source vector
+     *             constraints: 16-byte aligned
+     * @param src1 second source vector
+     *             constraints: 16-byte aligned
+     * @param win  half-window vector
+     *             constraints: 16-byte aligned
+     * @param len  length of vector
+     *             constraints: multiple of 4
+     * @param bits scaling parameter
+     *
+     */
+    void (*vector_fmul_window_scaled)(int16_t *dst, const int32_t *src0, const int32_t *src1, const int32_t *win, int len, uint8_t bits);
+
+    /**
+     * Overlap/add with window function.
+     * Used primarily by MDCT-based audio codecs.
+     * Source and destination vectors must overlap exactly or not at all.
+     *
+     * @param dst  result vector
+     *             constraints: 32-byte aligned
+     * @param src0 first source vector
+     *             constraints: 16-byte aligned
+     * @param src1 second source vector
+     *             constraints: 16-byte aligned
+     * @param win  half-window vector
+     *             constraints: 16-byte aligned
+     * @param len  length of vector
+     *             constraints: multiple of 4
+     */
+    void (*vector_fmul_window)(int32_t *dst, const int32_t *src0, const int32_t *src1, const int32_t *win, int len);
+
+    /**
+     * Fixed-point multiplication that calculates the entry wise product of two
+     * vectors of integers and stores the result in a vector of integers.
+     *
+     * @param dst  output vector
+     *             constraints: 32-byte aligned
+     * @param src0 first input vector
+     *             constraints: 32-byte aligned
+     * @param src1 second input vector
+     *             constraints: 32-byte aligned
+     * @param len  number of elements in the input
+     *             constraints: multiple of 16
+     */
+    void (*vector_fmul)(int *dst, const int *src0, const int *src1,
+                        int len);
+
+    void (*vector_fmul_reverse)(int *dst, const int *src0, const int *src1, int len);
+    /**
+     * Calculate the entry wise product of two vectors of integers, add a third vector of
+     * integers and store the result in a vector of integers.
+     *
+     * @param dst  output vector
+     *             constraints: 32-byte aligned
+     * @param src0 first input vector
+     *             constraints: 32-byte aligned
+     * @param src1 second input vector
+     *             constraints: 32-byte aligned
+     * @param src2 third input vector
+     *             constraints: 32-byte aligned
+     * @param len  number of elements in the input
+     *             constraints: multiple of 16
+     */
+    void (*vector_fmul_add)(int *dst, const int *src0, const int *src1,
+                            const int *src2, int len);
+
+    /**
+     * Calculate the scalar product of two vectors of integers.
+     *
+     * @param v1  first vector, 16-byte aligned
+     * @param v2  second vector, 16-byte aligned
+     * @param len length of vectors, multiple of 4
+     *
+     * @return sum of elementwise products
+     */
+    int (*scalarproduct_fixed)(const int *v1, const int *v2, int len);
+
+    /**
+     * Calculate the sum and difference of two vectors of integers.
+     *
+     * @param v1  first input vector, sum output, 16-byte aligned
+     * @param v2  second input vector, difference output, 16-byte aligned
+     * @param len length of vectors, multiple of 4
+     */
+    void (*butterflies_fixed)(int *av_restrict v1, int *av_restrict v2, int len);
+} AVFixedDSPContext;
+
+/**
+ * Allocate and initialize a fixed DSP context.
+ * note: should be freed with a av_free call when no longer needed.
+ *
+ * @param strict  setting to non-zero avoids using functions which may not be IEEE-754 compliant
+ */
+AVFixedDSPContext * avpriv_alloc_fixed_dsp(int strict);
+
+void ff_fixed_dsp_init_x86(AVFixedDSPContext *fdsp);
+
+/**
+ * Calculate the square root
+ *
+ * @param x    input fixed point number
+ *
+ * @param bits format of fixed point number (32 - bits).bits
+ *
+ * note: input is normalized to (0, 1) fixed point value
+ */
+
+static av_always_inline int fixed_sqrt(int x, int bits)
+{
+    int retval, bit_mask, guess, square, i;
+    int64_t accu;
+    int shift1 = 30 - bits;
+    int shift2 = bits - 15;
+
+    if (shift1 > 0) retval = ff_sqrt(x << shift1);
+    else retval = ff_sqrt(x >> -shift1);
+
+    if (shift2 > 0) {
+        retval = retval << shift2;
+        bit_mask = (1 << (shift2 - 1));
+
+        for (i=0; i<shift2; i++){
+            guess = retval + bit_mask;
+            accu = (int64_t)guess * guess;
+            square = (int)((accu + bit_mask) >> bits);
+            if (x >= square)
+                retval += bit_mask;
+            bit_mask >>= 1;
+        }
+
+    }
+    else retval >>= (-shift2);
+
+    return retval;
+}
+
+#endif /* AVUTIL_FIXED_DSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/float_dsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/float_dsp.c
new file mode 100644
index 000000000..6e28d71b5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/float_dsp.c
@@ -0,0 +1,164 @@
+/*
+ * Copyright 2005 Balatoni Denes
+ * Copyright 2006 Loren Merritt
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "attributes.h"
+#include "float_dsp.h"
+#include "mem.h"
+
+static void vector_fmul_c(float *dst, const float *src0, const float *src1,
+                          int len)
+{
+    int i;
+    for (i = 0; i < len; i++)
+        dst[i] = src0[i] * src1[i];
+}
+
+static void vector_dmul_c(double *dst, const double *src0, const double *src1,
+                          int len)
+{
+    int i;
+    for (i = 0; i < len; i++)
+        dst[i] = src0[i] * src1[i];
+}
+
+static void vector_fmac_scalar_c(float *dst, const float *src, float mul,
+                                 int len)
+{
+    int i;
+    for (i = 0; i < len; i++)
+        dst[i] += src[i] * mul;
+}
+
+static void vector_dmac_scalar_c(double *dst, const double *src, double mul,
+                                 int len)
+{
+    int i;
+    for (i = 0; i < len; i++)
+        dst[i] += src[i] * mul;
+}
+
+static void vector_fmul_scalar_c(float *dst, const float *src, float mul,
+                                 int len)
+{
+    int i;
+    for (i = 0; i < len; i++)
+        dst[i] = src[i] * mul;
+}
+
+static void vector_dmul_scalar_c(double *dst, const double *src, double mul,
+                                 int len)
+{
+    int i;
+    for (i = 0; i < len; i++)
+        dst[i] = src[i] * mul;
+}
+
+static void vector_fmul_window_c(float *dst, const float *src0,
+                                 const float *src1, const float *win, int len)
+{
+    int i, j;
+
+    dst  += len;
+    win  += len;
+    src0 += len;
+
+    for (i = -len, j = len - 1; i < 0; i++, j--) {
+        float s0 = src0[i];
+        float s1 = src1[j];
+        float wi = win[i];
+        float wj = win[j];
+        dst[i] = s0 * wj - s1 * wi;
+        dst[j] = s0 * wi + s1 * wj;
+    }
+}
+
+static void vector_fmul_add_c(float *dst, const float *src0, const float *src1,
+                              const float *src2, int len){
+    int i;
+
+    for (i = 0; i < len; i++)
+        dst[i] = src0[i] * src1[i] + src2[i];
+}
+
+static void vector_fmul_reverse_c(float *dst, const float *src0,
+                                  const float *src1, int len)
+{
+    int i;
+
+    src1 += len-1;
+    for (i = 0; i < len; i++)
+        dst[i] = src0[i] * src1[-i];
+}
+
+static void butterflies_float_c(float *av_restrict v1, float *av_restrict v2,
+                                int len)
+{
+    int i;
+
+    for (i = 0; i < len; i++) {
+        float t = v1[i] - v2[i];
+        v1[i] += v2[i];
+        v2[i] = t;
+    }
+}
+
+float avpriv_scalarproduct_float_c(const float *v1, const float *v2, int len)
+{
+    float p = 0.0;
+    int i;
+
+    for (i = 0; i < len; i++)
+        p += v1[i] * v2[i];
+
+    return p;
+}
+
+av_cold AVFloatDSPContext *avpriv_float_dsp_alloc(int bit_exact)
+{
+    AVFloatDSPContext *fdsp = av_mallocz(sizeof(AVFloatDSPContext));
+    if (!fdsp)
+        return NULL;
+
+    fdsp->vector_fmul = vector_fmul_c;
+    fdsp->vector_dmul = vector_dmul_c;
+    fdsp->vector_fmac_scalar = vector_fmac_scalar_c;
+    fdsp->vector_fmul_scalar = vector_fmul_scalar_c;
+    fdsp->vector_dmac_scalar = vector_dmac_scalar_c;
+    fdsp->vector_dmul_scalar = vector_dmul_scalar_c;
+    fdsp->vector_fmul_window = vector_fmul_window_c;
+    fdsp->vector_fmul_add = vector_fmul_add_c;
+    fdsp->vector_fmul_reverse = vector_fmul_reverse_c;
+    fdsp->butterflies_float = butterflies_float_c;
+    fdsp->scalarproduct_float = avpriv_scalarproduct_float_c;
+
+    if (ARCH_AARCH64)
+        ff_float_dsp_init_aarch64(fdsp);
+    if (ARCH_ARM)
+        ff_float_dsp_init_arm(fdsp);
+    if (ARCH_PPC)
+        ff_float_dsp_init_ppc(fdsp, bit_exact);
+    if (ARCH_X86)
+        ff_float_dsp_init_x86(fdsp);
+    if (ARCH_MIPS)
+        ff_float_dsp_init_mips(fdsp);
+    return fdsp;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/float_dsp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/float_dsp.h
new file mode 100644
index 000000000..9c664592b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/float_dsp.h
@@ -0,0 +1,218 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_FLOAT_DSP_H
+#define AVUTIL_FLOAT_DSP_H
+
+#include "config.h"
+
+typedef struct AVFloatDSPContext {
+    /**
+     * Calculate the entry wise product of two vectors of floats and store the result in
+     * a vector of floats.
+     *
+     * @param dst  output vector
+     *             constraints: 32-byte aligned
+     * @param src0 first input vector
+     *             constraints: 32-byte aligned
+     * @param src1 second input vector
+     *             constraints: 32-byte aligned
+     * @param len  number of elements in the input
+     *             constraints: multiple of 16
+     */
+    void (*vector_fmul)(float *dst, const float *src0, const float *src1,
+                        int len);
+
+    /**
+     * Multiply a vector of floats by a scalar float and add to
+     * destination vector.  Source and destination vectors must
+     * overlap exactly or not at all.
+     *
+     * @param dst result vector
+     *            constraints: 32-byte aligned
+     * @param src input vector
+     *            constraints: 32-byte aligned
+     * @param mul scalar value
+     * @param len length of vector
+     *            constraints: multiple of 16
+     */
+    void (*vector_fmac_scalar)(float *dst, const float *src, float mul,
+                               int len);
+
+    /**
+     * Multiply a vector of doubles by a scalar double and add to
+     * destination vector.  Source and destination vectors must
+     * overlap exactly or not at all.
+     *
+     * @param dst result vector
+     *            constraints: 32-byte aligned
+     * @param src input vector
+     *            constraints: 32-byte aligned
+     * @param mul scalar value
+     * @param len length of vector
+     *            constraints: multiple of 16
+     */
+    void (*vector_dmac_scalar)(double *dst, const double *src, double mul,
+                               int len);
+
+    /**
+     * Multiply a vector of floats by a scalar float.  Source and
+     * destination vectors must overlap exactly or not at all.
+     *
+     * @param dst result vector
+     *            constraints: 16-byte aligned
+     * @param src input vector
+     *            constraints: 16-byte aligned
+     * @param mul scalar value
+     * @param len length of vector
+     *            constraints: multiple of 4
+     */
+    void (*vector_fmul_scalar)(float *dst, const float *src, float mul,
+                               int len);
+
+    /**
+     * Multiply a vector of double by a scalar double.  Source and
+     * destination vectors must overlap exactly or not at all.
+     *
+     * @param dst result vector
+     *            constraints: 32-byte aligned
+     * @param src input vector
+     *            constraints: 32-byte aligned
+     * @param mul scalar value
+     * @param len length of vector
+     *            constraints: multiple of 8
+     */
+    void (*vector_dmul_scalar)(double *dst, const double *src, double mul,
+                               int len);
+
+    /**
+     * Overlap/add with window function.
+     * Used primarily by MDCT-based audio codecs.
+     * Source and destination vectors must overlap exactly or not at all.
+     *
+     * @param dst  result vector
+     *             constraints: 16-byte aligned
+     * @param src0 first source vector
+     *             constraints: 16-byte aligned
+     * @param src1 second source vector
+     *             constraints: 16-byte aligned
+     * @param win  half-window vector
+     *             constraints: 16-byte aligned
+     * @param len  length of vector
+     *             constraints: multiple of 4
+     */
+    void (*vector_fmul_window)(float *dst, const float *src0,
+                               const float *src1, const float *win, int len);
+
+    /**
+     * Calculate the entry wise product of two vectors of floats, add a third vector of
+     * floats and store the result in a vector of floats.
+     *
+     * @param dst  output vector
+     *             constraints: 32-byte aligned
+     * @param src0 first input vector
+     *             constraints: 32-byte aligned
+     * @param src1 second input vector
+     *             constraints: 32-byte aligned
+     * @param src2 third input vector
+     *             constraints: 32-byte aligned
+     * @param len  number of elements in the input
+     *             constraints: multiple of 16
+     */
+    void (*vector_fmul_add)(float *dst, const float *src0, const float *src1,
+                            const float *src2, int len);
+
+    /**
+     * Calculate the entry wise product of two vectors of floats, and store the result
+     * in a vector of floats. The second vector of floats is iterated over
+     * in reverse order.
+     *
+     * @param dst  output vector
+     *             constraints: 32-byte aligned
+     * @param src0 first input vector
+     *             constraints: 32-byte aligned
+     * @param src1 second input vector
+     *             constraints: 32-byte aligned
+     * @param len  number of elements in the input
+     *             constraints: multiple of 16
+     */
+    void (*vector_fmul_reverse)(float *dst, const float *src0,
+                                const float *src1, int len);
+
+    /**
+     * Calculate the sum and difference of two vectors of floats.
+     *
+     * @param v1  first input vector, sum output, 16-byte aligned
+     * @param v2  second input vector, difference output, 16-byte aligned
+     * @param len length of vectors, multiple of 4
+     */
+    void (*butterflies_float)(float *av_restrict v1, float *av_restrict v2, int len);
+
+    /**
+     * Calculate the scalar product of two vectors of floats.
+     *
+     * @param v1  first vector, 16-byte aligned
+     * @param v2  second vector, 16-byte aligned
+     * @param len length of vectors, multiple of 4
+     *
+     * @return sum of elementwise products
+     */
+    float (*scalarproduct_float)(const float *v1, const float *v2, int len);
+
+    /**
+     * Calculate the entry wise product of two vectors of doubles and store the result in
+     * a vector of doubles.
+     *
+     * @param dst  output vector
+     *             constraints: 32-byte aligned
+     * @param src0 first input vector
+     *             constraints: 32-byte aligned
+     * @param src1 second input vector
+     *             constraints: 32-byte aligned
+     * @param len  number of elements in the input
+     *             constraints: multiple of 16
+     */
+    void (*vector_dmul)(double *dst, const double *src0, const double *src1,
+                        int len);
+} AVFloatDSPContext;
+
+/**
+ * Return the scalar product of two vectors.
+ *
+ * @param v1  first input vector
+ * @param v2  first input vector
+ * @param len number of elements
+ *
+ * @return sum of elementwise products
+ */
+float avpriv_scalarproduct_float_c(const float *v1, const float *v2, int len);
+
+void ff_float_dsp_init_aarch64(AVFloatDSPContext *fdsp);
+void ff_float_dsp_init_arm(AVFloatDSPContext *fdsp);
+void ff_float_dsp_init_ppc(AVFloatDSPContext *fdsp, int strict);
+void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp);
+void ff_float_dsp_init_mips(AVFloatDSPContext *fdsp);
+
+/**
+ * Allocate a float DSP context.
+ *
+ * @param strict  setting to non-zero avoids using functions which may not be IEEE-754 compliant
+ */
+AVFloatDSPContext *avpriv_float_dsp_alloc(int strict);
+
+#endif /* AVUTIL_FLOAT_DSP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/frame.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/frame.c
new file mode 100644
index 000000000..dcf1fc3d1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/frame.c
@@ -0,0 +1,947 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "channel_layout.h"
+#include "avassert.h"
+#include "buffer.h"
+#include "common.h"
+#include "dict.h"
+#include "frame.h"
+#include "imgutils.h"
+#include "mem.h"
+#include "samplefmt.h"
+
+#if FF_API_FRAME_GET_SET
+MAKE_ACCESSORS(AVFrame, frame, int64_t, best_effort_timestamp)
+MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_duration)
+MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_pos)
+MAKE_ACCESSORS(AVFrame, frame, int64_t, channel_layout)
+MAKE_ACCESSORS(AVFrame, frame, int,     channels)
+MAKE_ACCESSORS(AVFrame, frame, int,     sample_rate)
+MAKE_ACCESSORS(AVFrame, frame, AVDictionary *, metadata)
+MAKE_ACCESSORS(AVFrame, frame, int,     decode_error_flags)
+MAKE_ACCESSORS(AVFrame, frame, int,     pkt_size)
+MAKE_ACCESSORS(AVFrame, frame, enum AVColorSpace, colorspace)
+MAKE_ACCESSORS(AVFrame, frame, enum AVColorRange, color_range)
+#endif
+
+#define CHECK_CHANNELS_CONSISTENCY(frame) \
+    av_assert2(!(frame)->channel_layout || \
+               (frame)->channels == \
+               av_get_channel_layout_nb_channels((frame)->channel_layout))
+
+#if FF_API_FRAME_QP
+struct qp_properties {
+    int stride;
+    int type;
+};
+
+int av_frame_set_qp_table(AVFrame *f, AVBufferRef *buf, int stride, int qp_type)
+{
+    struct qp_properties *p;
+    AVFrameSideData *sd;
+    AVBufferRef *ref;
+
+FF_DISABLE_DEPRECATION_WARNINGS
+    av_buffer_unref(&f->qp_table_buf);
+
+    f->qp_table_buf = buf;
+    f->qscale_table = buf->data;
+    f->qstride      = stride;
+    f->qscale_type  = qp_type;
+FF_ENABLE_DEPRECATION_WARNINGS
+
+    av_frame_remove_side_data(f, AV_FRAME_DATA_QP_TABLE_PROPERTIES);
+    av_frame_remove_side_data(f, AV_FRAME_DATA_QP_TABLE_DATA);
+
+    ref = av_buffer_ref(buf);
+    if (!av_frame_new_side_data_from_buf(f, AV_FRAME_DATA_QP_TABLE_DATA, ref)) {
+        av_buffer_unref(&ref);
+        return AVERROR(ENOMEM);
+    }
+
+    sd = av_frame_new_side_data(f, AV_FRAME_DATA_QP_TABLE_PROPERTIES,
+                                sizeof(struct qp_properties));
+    if (!sd)
+        return AVERROR(ENOMEM);
+
+    p = (struct qp_properties *)sd->data;
+    p->stride = stride;
+    p->type = qp_type;
+
+    return 0;
+}
+
+int8_t *av_frame_get_qp_table(AVFrame *f, int *stride, int *type)
+{
+    AVBufferRef *buf = NULL;
+
+    *stride = 0;
+    *type   = 0;
+
+FF_DISABLE_DEPRECATION_WARNINGS
+    if (f->qp_table_buf) {
+        *stride = f->qstride;
+        *type   = f->qscale_type;
+        buf     = f->qp_table_buf;
+FF_ENABLE_DEPRECATION_WARNINGS
+    } else {
+        AVFrameSideData *sd;
+        struct qp_properties *p;
+        sd = av_frame_get_side_data(f, AV_FRAME_DATA_QP_TABLE_PROPERTIES);
+        if (!sd)
+            return NULL;
+        p = (struct qp_properties *)sd->data;
+        sd = av_frame_get_side_data(f, AV_FRAME_DATA_QP_TABLE_DATA);
+        if (!sd)
+            return NULL;
+        *stride = p->stride;
+        *type   = p->type;
+        buf     = sd->buf;
+    }
+
+    return buf ? buf->data : NULL;
+}
+#endif
+
+const char *av_get_colorspace_name(enum AVColorSpace val)
+{
+    static const char * const name[] = {
+        [AVCOL_SPC_RGB]       = "GBR",
+        [AVCOL_SPC_BT709]     = "bt709",
+        [AVCOL_SPC_FCC]       = "fcc",
+        [AVCOL_SPC_BT470BG]   = "bt470bg",
+        [AVCOL_SPC_SMPTE170M] = "smpte170m",
+        [AVCOL_SPC_SMPTE240M] = "smpte240m",
+        [AVCOL_SPC_YCOCG]     = "YCgCo",
+    };
+    if ((unsigned)val >= FF_ARRAY_ELEMS(name))
+        return NULL;
+    return name[val];
+}
+
+static void get_frame_defaults(AVFrame *frame)
+{
+    if (frame->extended_data != frame->data)
+        av_freep(&frame->extended_data);
+
+    memset(frame, 0, sizeof(*frame));
+
+    frame->pts                   =
+    frame->pkt_dts               = AV_NOPTS_VALUE;
+#if FF_API_PKT_PTS
+FF_DISABLE_DEPRECATION_WARNINGS
+    frame->pkt_pts               = AV_NOPTS_VALUE;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+    frame->best_effort_timestamp = AV_NOPTS_VALUE;
+    frame->pkt_duration        = 0;
+    frame->pkt_pos             = -1;
+    frame->pkt_size            = -1;
+    frame->key_frame           = 1;
+    frame->sample_aspect_ratio = (AVRational){ 0, 1 };
+    frame->format              = -1; /* unknown */
+    frame->extended_data       = frame->data;
+    frame->color_primaries     = AVCOL_PRI_UNSPECIFIED;
+    frame->color_trc           = AVCOL_TRC_UNSPECIFIED;
+    frame->colorspace          = AVCOL_SPC_UNSPECIFIED;
+    frame->color_range         = AVCOL_RANGE_UNSPECIFIED;
+    frame->chroma_location     = AVCHROMA_LOC_UNSPECIFIED;
+    frame->flags               = 0;
+}
+
+static void free_side_data(AVFrameSideData **ptr_sd)
+{
+    AVFrameSideData *sd = *ptr_sd;
+
+    av_buffer_unref(&sd->buf);
+    av_dict_free(&sd->metadata);
+    av_freep(ptr_sd);
+}
+
+static void wipe_side_data(AVFrame *frame)
+{
+    int i;
+
+    for (i = 0; i < frame->nb_side_data; i++) {
+        free_side_data(&frame->side_data[i]);
+    }
+    frame->nb_side_data = 0;
+
+    av_freep(&frame->side_data);
+}
+
+AVFrame *av_frame_alloc(void)
+{
+    AVFrame *frame = av_mallocz(sizeof(*frame));
+
+    if (!frame)
+        return NULL;
+
+    frame->extended_data = NULL;
+    get_frame_defaults(frame);
+
+    return frame;
+}
+
+void av_frame_free(AVFrame **frame)
+{
+    if (!frame || !*frame)
+        return;
+
+    av_frame_unref(*frame);
+    av_freep(frame);
+}
+
+static int get_video_buffer(AVFrame *frame, int align)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
+    int ret, i, padded_height;
+    int plane_padding = FFMAX(16 + 16/*STRIDE_ALIGN*/, align);
+
+    if (!desc)
+        return AVERROR(EINVAL);
+
+    if ((ret = av_image_check_size(frame->width, frame->height, 0, NULL)) < 0)
+        return ret;
+
+    if (!frame->linesize[0]) {
+        if (align <= 0)
+            align = 32; /* STRIDE_ALIGN. Should be av_cpu_max_align() */
+
+        for(i=1; i<=align; i+=i) {
+            ret = av_image_fill_linesizes(frame->linesize, frame->format,
+                                          FFALIGN(frame->width, i));
+            if (ret < 0)
+                return ret;
+            if (!(frame->linesize[0] & (align-1)))
+                break;
+        }
+
+        for (i = 0; i < 4 && frame->linesize[i]; i++)
+            frame->linesize[i] = FFALIGN(frame->linesize[i], align);
+    }
+
+    padded_height = FFALIGN(frame->height, 32);
+    if ((ret = av_image_fill_pointers(frame->data, frame->format, padded_height,
+                                      NULL, frame->linesize)) < 0)
+        return ret;
+
+    frame->buf[0] = av_buffer_alloc(ret + 4*plane_padding);
+    if (!frame->buf[0]) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    if ((ret = av_image_fill_pointers(frame->data, frame->format, padded_height,
+                                      frame->buf[0]->data, frame->linesize)) < 0)
+        goto fail;
+
+    for (i = 1; i < 4; i++) {
+        if (frame->data[i])
+            frame->data[i] += i * plane_padding;
+    }
+
+    frame->extended_data = frame->data;
+
+    return 0;
+fail:
+    av_frame_unref(frame);
+    return ret;
+}
+
+static int get_audio_buffer(AVFrame *frame, int align)
+{
+    int channels;
+    int planar   = av_sample_fmt_is_planar(frame->format);
+    int planes;
+    int ret, i;
+
+    if (!frame->channels)
+        frame->channels = av_get_channel_layout_nb_channels(frame->channel_layout);
+
+    channels = frame->channels;
+    planes = planar ? channels : 1;
+
+    CHECK_CHANNELS_CONSISTENCY(frame);
+    if (!frame->linesize[0]) {
+        ret = av_samples_get_buffer_size(&frame->linesize[0], channels,
+                                         frame->nb_samples, frame->format,
+                                         align);
+        if (ret < 0)
+            return ret;
+    }
+
+    if (planes > AV_NUM_DATA_POINTERS) {
+        frame->extended_data = av_mallocz_array(planes,
+                                          sizeof(*frame->extended_data));
+        frame->extended_buf  = av_mallocz_array((planes - AV_NUM_DATA_POINTERS),
+                                          sizeof(*frame->extended_buf));
+        if (!frame->extended_data || !frame->extended_buf) {
+            av_freep(&frame->extended_data);
+            av_freep(&frame->extended_buf);
+            return AVERROR(ENOMEM);
+        }
+        frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
+    } else
+        frame->extended_data = frame->data;
+
+    for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
+        frame->buf[i] = av_buffer_alloc(frame->linesize[0]);
+        if (!frame->buf[i]) {
+            av_frame_unref(frame);
+            return AVERROR(ENOMEM);
+        }
+        frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
+    }
+    for (i = 0; i < planes - AV_NUM_DATA_POINTERS; i++) {
+        frame->extended_buf[i] = av_buffer_alloc(frame->linesize[0]);
+        if (!frame->extended_buf[i]) {
+            av_frame_unref(frame);
+            return AVERROR(ENOMEM);
+        }
+        frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
+    }
+    return 0;
+
+}
+
+int av_frame_get_buffer(AVFrame *frame, int align)
+{
+    if (frame->format < 0)
+        return AVERROR(EINVAL);
+
+    if (frame->width > 0 && frame->height > 0)
+        return get_video_buffer(frame, align);
+    else if (frame->nb_samples > 0 && (frame->channel_layout || frame->channels > 0))
+        return get_audio_buffer(frame, align);
+
+    return AVERROR(EINVAL);
+}
+
+static int frame_copy_props(AVFrame *dst, const AVFrame *src, int force_copy)
+{
+    int i;
+
+    dst->key_frame              = src->key_frame;
+    dst->pict_type              = src->pict_type;
+    dst->sample_aspect_ratio    = src->sample_aspect_ratio;
+    dst->crop_top               = src->crop_top;
+    dst->crop_bottom            = src->crop_bottom;
+    dst->crop_left              = src->crop_left;
+    dst->crop_right             = src->crop_right;
+    dst->pts                    = src->pts;
+    dst->repeat_pict            = src->repeat_pict;
+    dst->interlaced_frame       = src->interlaced_frame;
+    dst->top_field_first        = src->top_field_first;
+    dst->palette_has_changed    = src->palette_has_changed;
+    dst->sample_rate            = src->sample_rate;
+    dst->opaque                 = src->opaque;
+#if FF_API_PKT_PTS
+FF_DISABLE_DEPRECATION_WARNINGS
+    dst->pkt_pts                = src->pkt_pts;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+    dst->pkt_dts                = src->pkt_dts;
+    dst->pkt_pos                = src->pkt_pos;
+    dst->pkt_size               = src->pkt_size;
+    dst->pkt_duration           = src->pkt_duration;
+    dst->reordered_opaque       = src->reordered_opaque;
+    dst->quality                = src->quality;
+    dst->best_effort_timestamp  = src->best_effort_timestamp;
+    dst->coded_picture_number   = src->coded_picture_number;
+    dst->display_picture_number = src->display_picture_number;
+    dst->flags                  = src->flags;
+    dst->decode_error_flags     = src->decode_error_flags;
+    dst->color_primaries        = src->color_primaries;
+    dst->color_trc              = src->color_trc;
+    dst->colorspace             = src->colorspace;
+    dst->color_range            = src->color_range;
+    dst->chroma_location        = src->chroma_location;
+
+    av_dict_copy(&dst->metadata, src->metadata, 0);
+
+#if FF_API_ERROR_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+    memcpy(dst->error, src->error, sizeof(dst->error));
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+    for (i = 0; i < src->nb_side_data; i++) {
+        const AVFrameSideData *sd_src = src->side_data[i];
+        AVFrameSideData *sd_dst;
+        if (   sd_src->type == AV_FRAME_DATA_PANSCAN
+            && (src->width != dst->width || src->height != dst->height))
+            continue;
+        if (force_copy) {
+            sd_dst = av_frame_new_side_data(dst, sd_src->type,
+                                            sd_src->size);
+            if (!sd_dst) {
+                wipe_side_data(dst);
+                return AVERROR(ENOMEM);
+            }
+            memcpy(sd_dst->data, sd_src->data, sd_src->size);
+        } else {
+            AVBufferRef *ref = av_buffer_ref(sd_src->buf);
+            sd_dst = av_frame_new_side_data_from_buf(dst, sd_src->type, ref);
+            if (!sd_dst) {
+                av_buffer_unref(&ref);
+                wipe_side_data(dst);
+                return AVERROR(ENOMEM);
+            }
+        }
+        av_dict_copy(&sd_dst->metadata, sd_src->metadata, 0);
+    }
+
+#if FF_API_FRAME_QP
+FF_DISABLE_DEPRECATION_WARNINGS
+    dst->qscale_table = NULL;
+    dst->qstride      = 0;
+    dst->qscale_type  = 0;
+    av_buffer_unref(&dst->qp_table_buf);
+    if (src->qp_table_buf) {
+        dst->qp_table_buf = av_buffer_ref(src->qp_table_buf);
+        if (dst->qp_table_buf) {
+            dst->qscale_table = dst->qp_table_buf->data;
+            dst->qstride      = src->qstride;
+            dst->qscale_type  = src->qscale_type;
+        }
+    }
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+    av_buffer_unref(&dst->opaque_ref);
+    av_buffer_unref(&dst->private_ref);
+    if (src->opaque_ref) {
+        dst->opaque_ref = av_buffer_ref(src->opaque_ref);
+        if (!dst->opaque_ref)
+            return AVERROR(ENOMEM);
+    }
+    if (src->private_ref) {
+        dst->private_ref = av_buffer_ref(src->private_ref);
+        if (!dst->private_ref)
+            return AVERROR(ENOMEM);
+    }
+    return 0;
+}
+
+int av_frame_ref(AVFrame *dst, const AVFrame *src)
+{
+    int i, ret = 0;
+
+    av_assert1(dst->width == 0 && dst->height == 0);
+    av_assert1(dst->channels == 0);
+
+    dst->format         = src->format;
+    dst->width          = src->width;
+    dst->height         = src->height;
+    dst->channels       = src->channels;
+    dst->channel_layout = src->channel_layout;
+    dst->nb_samples     = src->nb_samples;
+
+    ret = frame_copy_props(dst, src, 0);
+    if (ret < 0)
+        return ret;
+
+    /* duplicate the frame data if it's not refcounted */
+    if (!src->buf[0]) {
+        ret = av_frame_get_buffer(dst, 32);
+        if (ret < 0)
+            return ret;
+
+        ret = av_frame_copy(dst, src);
+        if (ret < 0)
+            av_frame_unref(dst);
+
+        return ret;
+    }
+
+    /* ref the buffers */
+    for (i = 0; i < FF_ARRAY_ELEMS(src->buf); i++) {
+        if (!src->buf[i])
+            continue;
+        dst->buf[i] = av_buffer_ref(src->buf[i]);
+        if (!dst->buf[i]) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+    }
+
+    if (src->extended_buf) {
+        dst->extended_buf = av_mallocz_array(sizeof(*dst->extended_buf),
+                                       src->nb_extended_buf);
+        if (!dst->extended_buf) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+        dst->nb_extended_buf = src->nb_extended_buf;
+
+        for (i = 0; i < src->nb_extended_buf; i++) {
+            dst->extended_buf[i] = av_buffer_ref(src->extended_buf[i]);
+            if (!dst->extended_buf[i]) {
+                ret = AVERROR(ENOMEM);
+                goto fail;
+            }
+        }
+    }
+
+    if (src->hw_frames_ctx) {
+        dst->hw_frames_ctx = av_buffer_ref(src->hw_frames_ctx);
+        if (!dst->hw_frames_ctx) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+    }
+
+    /* duplicate extended data */
+    if (src->extended_data != src->data) {
+        int ch = src->channels;
+
+        if (!ch) {
+            ret = AVERROR(EINVAL);
+            goto fail;
+        }
+        CHECK_CHANNELS_CONSISTENCY(src);
+
+        dst->extended_data = av_malloc_array(sizeof(*dst->extended_data), ch);
+        if (!dst->extended_data) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
+        memcpy(dst->extended_data, src->extended_data, sizeof(*src->extended_data) * ch);
+    } else
+        dst->extended_data = dst->data;
+
+    memcpy(dst->data,     src->data,     sizeof(src->data));
+    memcpy(dst->linesize, src->linesize, sizeof(src->linesize));
+
+    return 0;
+
+fail:
+    av_frame_unref(dst);
+    return ret;
+}
+
+AVFrame *av_frame_clone(const AVFrame *src)
+{
+    AVFrame *ret = av_frame_alloc();
+
+    if (!ret)
+        return NULL;
+
+    if (av_frame_ref(ret, src) < 0)
+        av_frame_free(&ret);
+
+    return ret;
+}
+
+void av_frame_unref(AVFrame *frame)
+{
+    int i;
+
+    if (!frame)
+        return;
+
+    wipe_side_data(frame);
+
+    for (i = 0; i < FF_ARRAY_ELEMS(frame->buf); i++)
+        av_buffer_unref(&frame->buf[i]);
+    for (i = 0; i < frame->nb_extended_buf; i++)
+        av_buffer_unref(&frame->extended_buf[i]);
+    av_freep(&frame->extended_buf);
+    av_dict_free(&frame->metadata);
+#if FF_API_FRAME_QP
+FF_DISABLE_DEPRECATION_WARNINGS
+    av_buffer_unref(&frame->qp_table_buf);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+    av_buffer_unref(&frame->hw_frames_ctx);
+
+    av_buffer_unref(&frame->opaque_ref);
+    av_buffer_unref(&frame->private_ref);
+
+    get_frame_defaults(frame);
+}
+
+void av_frame_move_ref(AVFrame *dst, AVFrame *src)
+{
+    av_assert1(dst->width == 0 && dst->height == 0);
+    av_assert1(dst->channels == 0);
+
+    *dst = *src;
+    if (src->extended_data == src->data)
+        dst->extended_data = dst->data;
+    memset(src, 0, sizeof(*src));
+    get_frame_defaults(src);
+}
+
+int av_frame_is_writable(AVFrame *frame)
+{
+    int i, ret = 1;
+
+    /* assume non-refcounted frames are not writable */
+    if (!frame->buf[0])
+        return 0;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(frame->buf); i++)
+        if (frame->buf[i])
+            ret &= !!av_buffer_is_writable(frame->buf[i]);
+    for (i = 0; i < frame->nb_extended_buf; i++)
+        ret &= !!av_buffer_is_writable(frame->extended_buf[i]);
+
+    return ret;
+}
+
+int av_frame_make_writable(AVFrame *frame)
+{
+    AVFrame tmp;
+    int ret;
+
+    if (!frame->buf[0])
+        return AVERROR(EINVAL);
+
+    if (av_frame_is_writable(frame))
+        return 0;
+
+    memset(&tmp, 0, sizeof(tmp));
+    tmp.format         = frame->format;
+    tmp.width          = frame->width;
+    tmp.height         = frame->height;
+    tmp.channels       = frame->channels;
+    tmp.channel_layout = frame->channel_layout;
+    tmp.nb_samples     = frame->nb_samples;
+    ret = av_frame_get_buffer(&tmp, 32);
+    if (ret < 0)
+        return ret;
+
+    ret = av_frame_copy(&tmp, frame);
+    if (ret < 0) {
+        av_frame_unref(&tmp);
+        return ret;
+    }
+
+    ret = av_frame_copy_props(&tmp, frame);
+    if (ret < 0) {
+        av_frame_unref(&tmp);
+        return ret;
+    }
+
+    av_frame_unref(frame);
+
+    *frame = tmp;
+    if (tmp.data == tmp.extended_data)
+        frame->extended_data = frame->data;
+
+    return 0;
+}
+
+int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
+{
+    return frame_copy_props(dst, src, 1);
+}
+
+AVBufferRef *av_frame_get_plane_buffer(AVFrame *frame, int plane)
+{
+    uint8_t *data;
+    int planes, i;
+
+    if (frame->nb_samples) {
+        int channels = frame->channels;
+        if (!channels)
+            return NULL;
+        CHECK_CHANNELS_CONSISTENCY(frame);
+        planes = av_sample_fmt_is_planar(frame->format) ? channels : 1;
+    } else
+        planes = 4;
+
+    if (plane < 0 || plane >= planes || !frame->extended_data[plane])
+        return NULL;
+    data = frame->extended_data[plane];
+
+    for (i = 0; i < FF_ARRAY_ELEMS(frame->buf) && frame->buf[i]; i++) {
+        AVBufferRef *buf = frame->buf[i];
+        if (data >= buf->data && data < buf->data + buf->size)
+            return buf;
+    }
+    for (i = 0; i < frame->nb_extended_buf; i++) {
+        AVBufferRef *buf = frame->extended_buf[i];
+        if (data >= buf->data && data < buf->data + buf->size)
+            return buf;
+    }
+    return NULL;
+}
+
+AVFrameSideData *av_frame_new_side_data_from_buf(AVFrame *frame,
+                                                 enum AVFrameSideDataType type,
+                                                 AVBufferRef *buf)
+{
+    AVFrameSideData *ret, **tmp;
+
+    if (!buf)
+        return NULL;
+
+    if (frame->nb_side_data > INT_MAX / sizeof(*frame->side_data) - 1)
+        return NULL;
+
+    tmp = av_realloc(frame->side_data,
+                     (frame->nb_side_data + 1) * sizeof(*frame->side_data));
+    if (!tmp)
+        return NULL;
+    frame->side_data = tmp;
+
+    ret = av_mallocz(sizeof(*ret));
+    if (!ret)
+        return NULL;
+
+    ret->buf = buf;
+    ret->data = ret->buf->data;
+    ret->size = buf->size;
+    ret->type = type;
+
+    frame->side_data[frame->nb_side_data++] = ret;
+
+    return ret;
+}
+
+AVFrameSideData *av_frame_new_side_data(AVFrame *frame,
+                                        enum AVFrameSideDataType type,
+                                        int size)
+{
+    AVFrameSideData *ret;
+    AVBufferRef *buf = av_buffer_alloc(size);
+    ret = av_frame_new_side_data_from_buf(frame, type, buf);
+    if (!ret)
+        av_buffer_unref(&buf);
+    return ret;
+}
+
+AVFrameSideData *av_frame_get_side_data(const AVFrame *frame,
+                                        enum AVFrameSideDataType type)
+{
+    int i;
+
+    for (i = 0; i < frame->nb_side_data; i++) {
+        if (frame->side_data[i]->type == type)
+            return frame->side_data[i];
+    }
+    return NULL;
+}
+
+static int frame_copy_video(AVFrame *dst, const AVFrame *src)
+{
+    const uint8_t *src_data[4];
+    int i, planes;
+
+    if (dst->width  < src->width ||
+        dst->height < src->height)
+        return AVERROR(EINVAL);
+
+    planes = av_pix_fmt_count_planes(dst->format);
+    for (i = 0; i < planes; i++)
+        if (!dst->data[i] || !src->data[i])
+            return AVERROR(EINVAL);
+
+    memcpy(src_data, src->data, sizeof(src_data));
+    av_image_copy(dst->data, dst->linesize,
+                  src_data, src->linesize,
+                  dst->format, src->width, src->height);
+
+    return 0;
+}
+
+static int frame_copy_audio(AVFrame *dst, const AVFrame *src)
+{
+    int planar   = av_sample_fmt_is_planar(dst->format);
+    int channels = dst->channels;
+    int planes   = planar ? channels : 1;
+    int i;
+
+    if (dst->nb_samples     != src->nb_samples ||
+        dst->channels       != src->channels ||
+        dst->channel_layout != src->channel_layout)
+        return AVERROR(EINVAL);
+
+    CHECK_CHANNELS_CONSISTENCY(src);
+
+    for (i = 0; i < planes; i++)
+        if (!dst->extended_data[i] || !src->extended_data[i])
+            return AVERROR(EINVAL);
+
+    av_samples_copy(dst->extended_data, src->extended_data, 0, 0,
+                    dst->nb_samples, channels, dst->format);
+
+    return 0;
+}
+
+int av_frame_copy(AVFrame *dst, const AVFrame *src)
+{
+    if (dst->format != src->format || dst->format < 0)
+        return AVERROR(EINVAL);
+
+    if (dst->width > 0 && dst->height > 0)
+        return frame_copy_video(dst, src);
+    else if (dst->nb_samples > 0 && dst->channels > 0)
+        return frame_copy_audio(dst, src);
+
+    return AVERROR(EINVAL);
+}
+
+void av_frame_remove_side_data(AVFrame *frame, enum AVFrameSideDataType type)
+{
+    int i;
+
+    for (i = 0; i < frame->nb_side_data; i++) {
+        AVFrameSideData *sd = frame->side_data[i];
+        if (sd->type == type) {
+            free_side_data(&frame->side_data[i]);
+            frame->side_data[i] = frame->side_data[frame->nb_side_data - 1];
+            frame->nb_side_data--;
+        }
+    }
+}
+
+const char *av_frame_side_data_name(enum AVFrameSideDataType type)
+{
+    switch(type) {
+    case AV_FRAME_DATA_PANSCAN:         return "AVPanScan";
+    case AV_FRAME_DATA_A53_CC:          return "ATSC A53 Part 4 Closed Captions";
+    case AV_FRAME_DATA_STEREO3D:        return "Stereo 3D";
+    case AV_FRAME_DATA_MATRIXENCODING:  return "AVMatrixEncoding";
+    case AV_FRAME_DATA_DOWNMIX_INFO:    return "Metadata relevant to a downmix procedure";
+    case AV_FRAME_DATA_REPLAYGAIN:      return "AVReplayGain";
+    case AV_FRAME_DATA_DISPLAYMATRIX:   return "3x3 displaymatrix";
+    case AV_FRAME_DATA_AFD:             return "Active format description";
+    case AV_FRAME_DATA_MOTION_VECTORS:  return "Motion vectors";
+    case AV_FRAME_DATA_SKIP_SAMPLES:    return "Skip samples";
+    case AV_FRAME_DATA_AUDIO_SERVICE_TYPE:          return "Audio service type";
+    case AV_FRAME_DATA_MASTERING_DISPLAY_METADATA:  return "Mastering display metadata";
+    case AV_FRAME_DATA_CONTENT_LIGHT_LEVEL:         return "Content light level metadata";
+    case AV_FRAME_DATA_GOP_TIMECODE:                return "GOP timecode";
+    case AV_FRAME_DATA_S12M_TIMECODE:               return "SMPTE 12-1 timecode";
+    case AV_FRAME_DATA_SPHERICAL:                   return "Spherical Mapping";
+    case AV_FRAME_DATA_ICC_PROFILE:                 return "ICC profile";
+#if FF_API_FRAME_QP
+    case AV_FRAME_DATA_QP_TABLE_PROPERTIES:         return "QP table properties";
+    case AV_FRAME_DATA_QP_TABLE_DATA:               return "QP table data";
+#endif
+    case AV_FRAME_DATA_DYNAMIC_HDR_PLUS: return "HDR Dynamic Metadata SMPTE2094-40 (HDR10+)";
+    case AV_FRAME_DATA_REGIONS_OF_INTEREST: return "Regions Of Interest";
+    }
+    return NULL;
+}
+
+static int calc_cropping_offsets(size_t offsets[4], const AVFrame *frame,
+                                 const AVPixFmtDescriptor *desc)
+{
+    int i, j;
+
+    for (i = 0; frame->data[i]; i++) {
+        const AVComponentDescriptor *comp = NULL;
+        int shift_x = (i == 1 || i == 2) ? desc->log2_chroma_w : 0;
+        int shift_y = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
+
+        if (desc->flags & (AV_PIX_FMT_FLAG_PAL | FF_PSEUDOPAL) && i == 1) {
+            offsets[i] = 0;
+            break;
+        }
+
+        /* find any component descriptor for this plane */
+        for (j = 0; j < desc->nb_components; j++) {
+            if (desc->comp[j].plane == i) {
+                comp = &desc->comp[j];
+                break;
+            }
+        }
+        if (!comp)
+            return AVERROR_BUG;
+
+        offsets[i] = (frame->crop_top  >> shift_y) * frame->linesize[i] +
+                     (frame->crop_left >> shift_x) * comp->step;
+    }
+
+    return 0;
+}
+
+int av_frame_apply_cropping(AVFrame *frame, int flags)
+{
+    const AVPixFmtDescriptor *desc;
+    size_t offsets[4];
+    int i;
+
+    if (!(frame->width > 0 && frame->height > 0))
+        return AVERROR(EINVAL);
+
+    if (frame->crop_left >= INT_MAX - frame->crop_right        ||
+        frame->crop_top  >= INT_MAX - frame->crop_bottom       ||
+        (frame->crop_left + frame->crop_right) >= frame->width ||
+        (frame->crop_top + frame->crop_bottom) >= frame->height)
+        return AVERROR(ERANGE);
+
+    desc = av_pix_fmt_desc_get(frame->format);
+    if (!desc)
+        return AVERROR_BUG;
+
+    /* Apply just the right/bottom cropping for hwaccel formats. Bitstream
+     * formats cannot be easily handled here either (and corresponding decoders
+     * should not export any cropping anyway), so do the same for those as well.
+     * */
+    if (desc->flags & (AV_PIX_FMT_FLAG_BITSTREAM | AV_PIX_FMT_FLAG_HWACCEL)) {
+        frame->width      -= frame->crop_right;
+        frame->height     -= frame->crop_bottom;
+        frame->crop_right  = 0;
+        frame->crop_bottom = 0;
+        return 0;
+    }
+
+    /* calculate the offsets for each plane */
+    calc_cropping_offsets(offsets, frame, desc);
+
+    /* adjust the offsets to avoid breaking alignment */
+    if (!(flags & AV_FRAME_CROP_UNALIGNED)) {
+        int log2_crop_align = frame->crop_left ? ff_ctz(frame->crop_left) : INT_MAX;
+        int min_log2_align = INT_MAX;
+
+        for (i = 0; frame->data[i]; i++) {
+            int log2_align = offsets[i] ? ff_ctz(offsets[i]) : INT_MAX;
+            min_log2_align = FFMIN(log2_align, min_log2_align);
+        }
+
+        /* we assume, and it should always be true, that the data alignment is
+         * related to the cropping alignment by a constant power-of-2 factor */
+        if (log2_crop_align < min_log2_align)
+            return AVERROR_BUG;
+
+        if (min_log2_align < 5) {
+            frame->crop_left &= ~((1 << (5 + log2_crop_align - min_log2_align)) - 1);
+            calc_cropping_offsets(offsets, frame, desc);
+        }
+    }
+
+    for (i = 0; frame->data[i]; i++)
+        frame->data[i] += offsets[i];
+
+    frame->width      -= (frame->crop_left + frame->crop_right);
+    frame->height     -= (frame->crop_top  + frame->crop_bottom);
+    frame->crop_left   = 0;
+    frame->crop_right  = 0;
+    frame->crop_top    = 0;
+    frame->crop_bottom = 0;
+
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/frame.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/frame.h
new file mode 100644
index 000000000..5d3231e7b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/frame.h
@@ -0,0 +1,971 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu_frame
+ * reference-counted frame API
+ */
+
+#ifndef AVUTIL_FRAME_H
+#define AVUTIL_FRAME_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "avutil.h"
+#include "buffer.h"
+#include "dict.h"
+#include "rational.h"
+#include "samplefmt.h"
+#include "pixfmt.h"
+#include "version.h"
+
+
+/**
+ * @defgroup lavu_frame AVFrame
+ * @ingroup lavu_data
+ *
+ * @{
+ * AVFrame is an abstraction for reference-counted raw multimedia data.
+ */
+
+enum AVFrameSideDataType {
+    /**
+     * The data is the AVPanScan struct defined in libavcodec.
+     */
+    AV_FRAME_DATA_PANSCAN,
+    /**
+     * ATSC A53 Part 4 Closed Captions.
+     * A53 CC bitstream is stored as uint8_t in AVFrameSideData.data.
+     * The number of bytes of CC data is AVFrameSideData.size.
+     */
+    AV_FRAME_DATA_A53_CC,
+    /**
+     * Stereoscopic 3d metadata.
+     * The data is the AVStereo3D struct defined in libavutil/stereo3d.h.
+     */
+    AV_FRAME_DATA_STEREO3D,
+    /**
+     * The data is the AVMatrixEncoding enum defined in libavutil/channel_layout.h.
+     */
+    AV_FRAME_DATA_MATRIXENCODING,
+    /**
+     * Metadata relevant to a downmix procedure.
+     * The data is the AVDownmixInfo struct defined in libavutil/downmix_info.h.
+     */
+    AV_FRAME_DATA_DOWNMIX_INFO,
+    /**
+     * ReplayGain information in the form of the AVReplayGain struct.
+     */
+    AV_FRAME_DATA_REPLAYGAIN,
+    /**
+     * This side data contains a 3x3 transformation matrix describing an affine
+     * transformation that needs to be applied to the frame for correct
+     * presentation.
+     *
+     * See libavutil/display.h for a detailed description of the data.
+     */
+    AV_FRAME_DATA_DISPLAYMATRIX,
+    /**
+     * Active Format Description data consisting of a single byte as specified
+     * in ETSI TS 101 154 using AVActiveFormatDescription enum.
+     */
+    AV_FRAME_DATA_AFD,
+    /**
+     * Motion vectors exported by some codecs (on demand through the export_mvs
+     * flag set in the libavcodec AVCodecContext flags2 option).
+     * The data is the AVMotionVector struct defined in
+     * libavutil/motion_vector.h.
+     */
+    AV_FRAME_DATA_MOTION_VECTORS,
+    /**
+     * Recommmends skipping the specified number of samples. This is exported
+     * only if the "skip_manual" AVOption is set in libavcodec.
+     * This has the same format as AV_PKT_DATA_SKIP_SAMPLES.
+     * @code
+     * u32le number of samples to skip from start of this packet
+     * u32le number of samples to skip from end of this packet
+     * u8    reason for start skip
+     * u8    reason for end   skip (0=padding silence, 1=convergence)
+     * @endcode
+     */
+    AV_FRAME_DATA_SKIP_SAMPLES,
+    /**
+     * This side data must be associated with an audio frame and corresponds to
+     * enum AVAudioServiceType defined in avcodec.h.
+     */
+    AV_FRAME_DATA_AUDIO_SERVICE_TYPE,
+    /**
+     * Mastering display metadata associated with a video frame. The payload is
+     * an AVMasteringDisplayMetadata type and contains information about the
+     * mastering display color volume.
+     */
+    AV_FRAME_DATA_MASTERING_DISPLAY_METADATA,
+    /**
+     * The GOP timecode in 25 bit timecode format. Data format is 64-bit integer.
+     * This is set on the first frame of a GOP that has a temporal reference of 0.
+     */
+    AV_FRAME_DATA_GOP_TIMECODE,
+
+    /**
+     * The data represents the AVSphericalMapping structure defined in
+     * libavutil/spherical.h.
+     */
+    AV_FRAME_DATA_SPHERICAL,
+
+    /**
+     * Content light level (based on CTA-861.3). This payload contains data in
+     * the form of the AVContentLightMetadata struct.
+     */
+    AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
+
+    /**
+     * The data contains an ICC profile as an opaque octet buffer following the
+     * format described by ISO 15076-1 with an optional name defined in the
+     * metadata key entry "name".
+     */
+    AV_FRAME_DATA_ICC_PROFILE,
+
+#if FF_API_FRAME_QP
+    /**
+     * Implementation-specific description of the format of AV_FRAME_QP_TABLE_DATA.
+     * The contents of this side data are undocumented and internal; use
+     * av_frame_set_qp_table() and av_frame_get_qp_table() to access this in a
+     * meaningful way instead.
+     */
+    AV_FRAME_DATA_QP_TABLE_PROPERTIES,
+
+    /**
+     * Raw QP table data. Its format is described by
+     * AV_FRAME_DATA_QP_TABLE_PROPERTIES. Use av_frame_set_qp_table() and
+     * av_frame_get_qp_table() to access this instead.
+     */
+    AV_FRAME_DATA_QP_TABLE_DATA,
+#endif
+
+    /**
+     * Timecode which conforms to SMPTE ST 12-1. The data is an array of 4 uint32_t
+     * where the first uint32_t describes how many (1-3) of the other timecodes are used.
+     * The timecode format is described in the av_timecode_get_smpte_from_framenum()
+     * function in libavutil/timecode.c.
+     */
+    AV_FRAME_DATA_S12M_TIMECODE,
+
+    /**
+     * HDR dynamic metadata associated with a video frame. The payload is
+     * an AVDynamicHDRPlus type and contains information for color
+     * volume transform - application 4 of SMPTE 2094-40:2016 standard.
+     */
+    AV_FRAME_DATA_DYNAMIC_HDR_PLUS,
+
+    /**
+     * Regions Of Interest, the data is an array of AVRegionOfInterest type, the number of
+     * array element is implied by AVFrameSideData.size / AVRegionOfInterest.self_size.
+     */
+    AV_FRAME_DATA_REGIONS_OF_INTEREST,
+};
+
+enum AVActiveFormatDescription {
+    AV_AFD_SAME         = 8,
+    AV_AFD_4_3          = 9,
+    AV_AFD_16_9         = 10,
+    AV_AFD_14_9         = 11,
+    AV_AFD_4_3_SP_14_9  = 13,
+    AV_AFD_16_9_SP_14_9 = 14,
+    AV_AFD_SP_4_3       = 15,
+};
+
+
+/**
+ * Structure to hold side data for an AVFrame.
+ *
+ * sizeof(AVFrameSideData) is not a part of the public ABI, so new fields may be added
+ * to the end with a minor bump.
+ */
+typedef struct AVFrameSideData {
+    enum AVFrameSideDataType type;
+    uint8_t *data;
+    int      size;
+    AVDictionary *metadata;
+    AVBufferRef *buf;
+} AVFrameSideData;
+
+/**
+ * Structure describing a single Region Of Interest.
+ *
+ * When multiple regions are defined in a single side-data block, they
+ * should be ordered from most to least important - some encoders are only
+ * capable of supporting a limited number of distinct regions, so will have
+ * to truncate the list.
+ *
+ * When overlapping regions are defined, the first region containing a given
+ * area of the frame applies.
+ */
+typedef struct AVRegionOfInterest {
+    /**
+     * Must be set to the size of this data structure (that is,
+     * sizeof(AVRegionOfInterest)).
+     */
+    uint32_t self_size;
+    /**
+     * Distance in pixels from the top edge of the frame to the top and
+     * bottom edges and from the left edge of the frame to the left and
+     * right edges of the rectangle defining this region of interest.
+     *
+     * The constraints on a region are encoder dependent, so the region
+     * actually affected may be slightly larger for alignment or other
+     * reasons.
+     */
+    int top;
+    int bottom;
+    int left;
+    int right;
+    /**
+     * Quantisation offset.
+     *
+     * Must be in the range -1 to +1.  A value of zero indicates no quality
+     * change.  A negative value asks for better quality (less quantisation),
+     * while a positive value asks for worse quality (greater quantisation).
+     *
+     * The range is calibrated so that the extreme values indicate the
+     * largest possible offset - if the rest of the frame is encoded with the
+     * worst possible quality, an offset of -1 indicates that this region
+     * should be encoded with the best possible quality anyway.  Intermediate
+     * values are then interpolated in some codec-dependent way.
+     *
+     * For example, in 10-bit H.264 the quantisation parameter varies between
+     * -12 and 51.  A typical qoffset value of -1/10 therefore indicates that
+     * this region should be encoded with a QP around one-tenth of the full
+     * range better than the rest of the frame.  So, if most of the frame
+     * were to be encoded with a QP of around 30, this region would get a QP
+     * of around 24 (an offset of approximately -1/10 * (51 - -12) = -6.3).
+     * An extreme value of -1 would indicate that this region should be
+     * encoded with the best possible quality regardless of the treatment of
+     * the rest of the frame - that is, should be encoded at a QP of -12.
+     */
+    AVRational qoffset;
+} AVRegionOfInterest;
+
+/**
+ * This structure describes decoded (raw) audio or video data.
+ *
+ * AVFrame must be allocated using av_frame_alloc(). Note that this only
+ * allocates the AVFrame itself, the buffers for the data must be managed
+ * through other means (see below).
+ * AVFrame must be freed with av_frame_free().
+ *
+ * AVFrame is typically allocated once and then reused multiple times to hold
+ * different data (e.g. a single AVFrame to hold frames received from a
+ * decoder). In such a case, av_frame_unref() will free any references held by
+ * the frame and reset it to its original clean state before it
+ * is reused again.
+ *
+ * The data described by an AVFrame is usually reference counted through the
+ * AVBuffer API. The underlying buffer references are stored in AVFrame.buf /
+ * AVFrame.extended_buf. An AVFrame is considered to be reference counted if at
+ * least one reference is set, i.e. if AVFrame.buf[0] != NULL. In such a case,
+ * every single data plane must be contained in one of the buffers in
+ * AVFrame.buf or AVFrame.extended_buf.
+ * There may be a single buffer for all the data, or one separate buffer for
+ * each plane, or anything in between.
+ *
+ * sizeof(AVFrame) is not a part of the public ABI, so new fields may be added
+ * to the end with a minor bump.
+ *
+ * Fields can be accessed through AVOptions, the name string used, matches the
+ * C structure field name for fields accessible through AVOptions. The AVClass
+ * for AVFrame can be obtained from avcodec_get_frame_class()
+ */
+typedef struct AVFrame {
+#define AV_NUM_DATA_POINTERS 8
+    /**
+     * pointer to the picture/channel planes.
+     * This might be different from the first allocated byte
+     *
+     * Some decoders access areas outside 0,0 - width,height, please
+     * see avcodec_align_dimensions2(). Some filters and swscale can read
+     * up to 16 bytes beyond the planes, if these filters are to be used,
+     * then 16 extra bytes must be allocated.
+     *
+     * NOTE: Except for hwaccel formats, pointers not needed by the format
+     * MUST be set to NULL.
+     */
+    uint8_t *data[AV_NUM_DATA_POINTERS];
+
+    /**
+     * For video, size in bytes of each picture line.
+     * For audio, size in bytes of each plane.
+     *
+     * For audio, only linesize[0] may be set. For planar audio, each channel
+     * plane must be the same size.
+     *
+     * For video the linesizes should be multiples of the CPUs alignment
+     * preference, this is 16 or 32 for modern desktop CPUs.
+     * Some code requires such alignment other code can be slower without
+     * correct alignment, for yet other it makes no difference.
+     *
+     * @note The linesize may be larger than the size of usable data -- there
+     * may be extra padding present for performance reasons.
+     */
+    int linesize[AV_NUM_DATA_POINTERS];
+
+    /**
+     * pointers to the data planes/channels.
+     *
+     * For video, this should simply point to data[].
+     *
+     * For planar audio, each channel has a separate data pointer, and
+     * linesize[0] contains the size of each channel buffer.
+     * For packed audio, there is just one data pointer, and linesize[0]
+     * contains the total size of the buffer for all channels.
+     *
+     * Note: Both data and extended_data should always be set in a valid frame,
+     * but for planar audio with more channels that can fit in data,
+     * extended_data must be used in order to access all channels.
+     */
+    uint8_t **extended_data;
+
+    /**
+     * @name Video dimensions
+     * Video frames only. The coded dimensions (in pixels) of the video frame,
+     * i.e. the size of the rectangle that contains some well-defined values.
+     *
+     * @note The part of the frame intended for display/presentation is further
+     * restricted by the @ref cropping "Cropping rectangle".
+     * @{
+     */
+    int width, height;
+    /**
+     * @}
+     */
+
+    /**
+     * number of audio samples (per channel) described by this frame
+     */
+    int nb_samples;
+
+    /**
+     * format of the frame, -1 if unknown or unset
+     * Values correspond to enum AVPixelFormat for video frames,
+     * enum AVSampleFormat for audio)
+     */
+    int format;
+
+    /**
+     * 1 -> keyframe, 0-> not
+     */
+    int key_frame;
+
+    /**
+     * Picture type of the frame.
+     */
+    enum AVPictureType pict_type;
+
+    /**
+     * Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
+     */
+    AVRational sample_aspect_ratio;
+
+    /**
+     * Presentation timestamp in time_base units (time when frame should be shown to user).
+     */
+    int64_t pts;
+
+#if FF_API_PKT_PTS
+    /**
+     * PTS copied from the AVPacket that was decoded to produce this frame.
+     * @deprecated use the pts field instead
+     */
+    attribute_deprecated
+    int64_t pkt_pts;
+#endif
+
+    /**
+     * DTS copied from the AVPacket that triggered returning this frame. (if frame threading isn't used)
+     * This is also the Presentation time of this AVFrame calculated from
+     * only AVPacket.dts values without pts values.
+     */
+    int64_t pkt_dts;
+
+    /**
+     * picture number in bitstream order
+     */
+    int coded_picture_number;
+    /**
+     * picture number in display order
+     */
+    int display_picture_number;
+
+    /**
+     * quality (between 1 (good) and FF_LAMBDA_MAX (bad))
+     */
+    int quality;
+
+    /**
+     * for some private data of the user
+     */
+    void *opaque;
+
+#if FF_API_ERROR_FRAME
+    /**
+     * @deprecated unused
+     */
+    attribute_deprecated
+    uint64_t error[AV_NUM_DATA_POINTERS];
+#endif
+
+    /**
+     * When decoding, this signals how much the picture must be delayed.
+     * extra_delay = repeat_pict / (2*fps)
+     */
+    int repeat_pict;
+
+    /**
+     * The content of the picture is interlaced.
+     */
+    int interlaced_frame;
+
+    /**
+     * If the content is interlaced, is top field displayed first.
+     */
+    int top_field_first;
+
+    /**
+     * Tell user application that palette has changed from previous frame.
+     */
+    int palette_has_changed;
+
+    /**
+     * reordered opaque 64 bits (generally an integer or a double precision float
+     * PTS but can be anything).
+     * The user sets AVCodecContext.reordered_opaque to represent the input at
+     * that time,
+     * the decoder reorders values as needed and sets AVFrame.reordered_opaque
+     * to exactly one of the values provided by the user through AVCodecContext.reordered_opaque
+     */
+    int64_t reordered_opaque;
+
+    /**
+     * Sample rate of the audio data.
+     */
+    int sample_rate;
+
+    /**
+     * Channel layout of the audio data.
+     */
+    uint64_t channel_layout;
+
+    /**
+     * AVBuffer references backing the data for this frame. If all elements of
+     * this array are NULL, then this frame is not reference counted. This array
+     * must be filled contiguously -- if buf[i] is non-NULL then buf[j] must
+     * also be non-NULL for all j < i.
+     *
+     * There may be at most one AVBuffer per data plane, so for video this array
+     * always contains all the references. For planar audio with more than
+     * AV_NUM_DATA_POINTERS channels, there may be more buffers than can fit in
+     * this array. Then the extra AVBufferRef pointers are stored in the
+     * extended_buf array.
+     */
+    AVBufferRef *buf[AV_NUM_DATA_POINTERS];
+
+    /**
+     * For planar audio which requires more than AV_NUM_DATA_POINTERS
+     * AVBufferRef pointers, this array will hold all the references which
+     * cannot fit into AVFrame.buf.
+     *
+     * Note that this is different from AVFrame.extended_data, which always
+     * contains all the pointers. This array only contains the extra pointers,
+     * which cannot fit into AVFrame.buf.
+     *
+     * This array is always allocated using av_malloc() by whoever constructs
+     * the frame. It is freed in av_frame_unref().
+     */
+    AVBufferRef **extended_buf;
+    /**
+     * Number of elements in extended_buf.
+     */
+    int        nb_extended_buf;
+
+    AVFrameSideData **side_data;
+    int            nb_side_data;
+
+/**
+ * @defgroup lavu_frame_flags AV_FRAME_FLAGS
+ * @ingroup lavu_frame
+ * Flags describing additional frame properties.
+ *
+ * @{
+ */
+
+/**
+ * The frame data may be corrupted, e.g. due to decoding errors.
+ */
+#define AV_FRAME_FLAG_CORRUPT       (1 << 0)
+/**
+ * A flag to mark the frames which need to be decoded, but shouldn't be output.
+ */
+#define AV_FRAME_FLAG_DISCARD   (1 << 2)
+/**
+ * @}
+ */
+
+    /**
+     * Frame flags, a combination of @ref lavu_frame_flags
+     */
+    int flags;
+
+    /**
+     * MPEG vs JPEG YUV range.
+     * - encoding: Set by user
+     * - decoding: Set by libavcodec
+     */
+    enum AVColorRange color_range;
+
+    enum AVColorPrimaries color_primaries;
+
+    enum AVColorTransferCharacteristic color_trc;
+
+    /**
+     * YUV colorspace type.
+     * - encoding: Set by user
+     * - decoding: Set by libavcodec
+     */
+    enum AVColorSpace colorspace;
+
+    enum AVChromaLocation chroma_location;
+
+    /**
+     * frame timestamp estimated using various heuristics, in stream time base
+     * - encoding: unused
+     * - decoding: set by libavcodec, read by user.
+     */
+    int64_t best_effort_timestamp;
+
+    /**
+     * reordered pos from the last AVPacket that has been input into the decoder
+     * - encoding: unused
+     * - decoding: Read by user.
+     */
+    int64_t pkt_pos;
+
+    /**
+     * duration of the corresponding packet, expressed in
+     * AVStream->time_base units, 0 if unknown.
+     * - encoding: unused
+     * - decoding: Read by user.
+     */
+    int64_t pkt_duration;
+
+    /**
+     * metadata.
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     */
+    AVDictionary *metadata;
+
+    /**
+     * decode error flags of the frame, set to a combination of
+     * FF_DECODE_ERROR_xxx flags if the decoder produced a frame, but there
+     * were errors during the decoding.
+     * - encoding: unused
+     * - decoding: set by libavcodec, read by user.
+     */
+    int decode_error_flags;
+#define FF_DECODE_ERROR_INVALID_BITSTREAM   1
+#define FF_DECODE_ERROR_MISSING_REFERENCE   2
+#define FF_DECODE_ERROR_CONCEALMENT_ACTIVE  4
+#define FF_DECODE_ERROR_DECODE_SLICES       8
+
+    /**
+     * number of audio channels, only used for audio.
+     * - encoding: unused
+     * - decoding: Read by user.
+     */
+    int channels;
+
+    /**
+     * size of the corresponding packet containing the compressed
+     * frame.
+     * It is set to a negative value if unknown.
+     * - encoding: unused
+     * - decoding: set by libavcodec, read by user.
+     */
+    int pkt_size;
+
+#if FF_API_FRAME_QP
+    /**
+     * QP table
+     */
+    attribute_deprecated
+    int8_t *qscale_table;
+    /**
+     * QP store stride
+     */
+    attribute_deprecated
+    int qstride;
+
+    attribute_deprecated
+    int qscale_type;
+
+    attribute_deprecated
+    AVBufferRef *qp_table_buf;
+#endif
+    /**
+     * For hwaccel-format frames, this should be a reference to the
+     * AVHWFramesContext describing the frame.
+     */
+    AVBufferRef *hw_frames_ctx;
+
+    /**
+     * AVBufferRef for free use by the API user. FFmpeg will never check the
+     * contents of the buffer ref. FFmpeg calls av_buffer_unref() on it when
+     * the frame is unreferenced. av_frame_copy_props() calls create a new
+     * reference with av_buffer_ref() for the target frame's opaque_ref field.
+     *
+     * This is unrelated to the opaque field, although it serves a similar
+     * purpose.
+     */
+    AVBufferRef *opaque_ref;
+
+    /**
+     * @anchor cropping
+     * @name Cropping
+     * Video frames only. The number of pixels to discard from the the
+     * top/bottom/left/right border of the frame to obtain the sub-rectangle of
+     * the frame intended for presentation.
+     * @{
+     */
+    size_t crop_top;
+    size_t crop_bottom;
+    size_t crop_left;
+    size_t crop_right;
+    /**
+     * @}
+     */
+
+    /**
+     * AVBufferRef for internal use by a single libav* library.
+     * Must not be used to transfer data between libraries.
+     * Has to be NULL when ownership of the frame leaves the respective library.
+     *
+     * Code outside the FFmpeg libs should never check or change the contents of the buffer ref.
+     *
+     * FFmpeg calls av_buffer_unref() on it when the frame is unreferenced.
+     * av_frame_copy_props() calls create a new reference with av_buffer_ref()
+     * for the target frame's private_ref field.
+     */
+    AVBufferRef *private_ref;
+} AVFrame;
+
+#if FF_API_FRAME_GET_SET
+/**
+ * Accessors for some AVFrame fields. These used to be provided for ABI
+ * compatibility, and do not need to be used anymore.
+ */
+attribute_deprecated
+int64_t av_frame_get_best_effort_timestamp(const AVFrame *frame);
+attribute_deprecated
+void    av_frame_set_best_effort_timestamp(AVFrame *frame, int64_t val);
+attribute_deprecated
+int64_t av_frame_get_pkt_duration         (const AVFrame *frame);
+attribute_deprecated
+void    av_frame_set_pkt_duration         (AVFrame *frame, int64_t val);
+attribute_deprecated
+int64_t av_frame_get_pkt_pos              (const AVFrame *frame);
+attribute_deprecated
+void    av_frame_set_pkt_pos              (AVFrame *frame, int64_t val);
+attribute_deprecated
+int64_t av_frame_get_channel_layout       (const AVFrame *frame);
+attribute_deprecated
+void    av_frame_set_channel_layout       (AVFrame *frame, int64_t val);
+attribute_deprecated
+int     av_frame_get_channels             (const AVFrame *frame);
+attribute_deprecated
+void    av_frame_set_channels             (AVFrame *frame, int     val);
+attribute_deprecated
+int     av_frame_get_sample_rate          (const AVFrame *frame);
+attribute_deprecated
+void    av_frame_set_sample_rate          (AVFrame *frame, int     val);
+attribute_deprecated
+AVDictionary *av_frame_get_metadata       (const AVFrame *frame);
+attribute_deprecated
+void          av_frame_set_metadata       (AVFrame *frame, AVDictionary *val);
+attribute_deprecated
+int     av_frame_get_decode_error_flags   (const AVFrame *frame);
+attribute_deprecated
+void    av_frame_set_decode_error_flags   (AVFrame *frame, int     val);
+attribute_deprecated
+int     av_frame_get_pkt_size(const AVFrame *frame);
+attribute_deprecated
+void    av_frame_set_pkt_size(AVFrame *frame, int val);
+#if FF_API_FRAME_QP
+attribute_deprecated
+int8_t *av_frame_get_qp_table(AVFrame *f, int *stride, int *type);
+attribute_deprecated
+int av_frame_set_qp_table(AVFrame *f, AVBufferRef *buf, int stride, int type);
+#endif
+attribute_deprecated
+enum AVColorSpace av_frame_get_colorspace(const AVFrame *frame);
+attribute_deprecated
+void    av_frame_set_colorspace(AVFrame *frame, enum AVColorSpace val);
+attribute_deprecated
+enum AVColorRange av_frame_get_color_range(const AVFrame *frame);
+attribute_deprecated
+void    av_frame_set_color_range(AVFrame *frame, enum AVColorRange val);
+#endif
+
+/**
+ * Get the name of a colorspace.
+ * @return a static string identifying the colorspace; can be NULL.
+ */
+const char *av_get_colorspace_name(enum AVColorSpace val);
+
+/**
+ * Allocate an AVFrame and set its fields to default values.  The resulting
+ * struct must be freed using av_frame_free().
+ *
+ * @return An AVFrame filled with default values or NULL on failure.
+ *
+ * @note this only allocates the AVFrame itself, not the data buffers. Those
+ * must be allocated through other means, e.g. with av_frame_get_buffer() or
+ * manually.
+ */
+AVFrame *av_frame_alloc(void);
+
+/**
+ * Free the frame and any dynamically allocated objects in it,
+ * e.g. extended_data. If the frame is reference counted, it will be
+ * unreferenced first.
+ *
+ * @param frame frame to be freed. The pointer will be set to NULL.
+ */
+void av_frame_free(AVFrame **frame);
+
+/**
+ * Set up a new reference to the data described by the source frame.
+ *
+ * Copy frame properties from src to dst and create a new reference for each
+ * AVBufferRef from src.
+ *
+ * If src is not reference counted, new buffers are allocated and the data is
+ * copied.
+ *
+ * @warning: dst MUST have been either unreferenced with av_frame_unref(dst),
+ *           or newly allocated with av_frame_alloc() before calling this
+ *           function, or undefined behavior will occur.
+ *
+ * @return 0 on success, a negative AVERROR on error
+ */
+int av_frame_ref(AVFrame *dst, const AVFrame *src);
+
+/**
+ * Create a new frame that references the same data as src.
+ *
+ * This is a shortcut for av_frame_alloc()+av_frame_ref().
+ *
+ * @return newly created AVFrame on success, NULL on error.
+ */
+AVFrame *av_frame_clone(const AVFrame *src);
+
+/**
+ * Unreference all the buffers referenced by frame and reset the frame fields.
+ */
+void av_frame_unref(AVFrame *frame);
+
+/**
+ * Move everything contained in src to dst and reset src.
+ *
+ * @warning: dst is not unreferenced, but directly overwritten without reading
+ *           or deallocating its contents. Call av_frame_unref(dst) manually
+ *           before calling this function to ensure that no memory is leaked.
+ */
+void av_frame_move_ref(AVFrame *dst, AVFrame *src);
+
+/**
+ * Allocate new buffer(s) for audio or video data.
+ *
+ * The following fields must be set on frame before calling this function:
+ * - format (pixel format for video, sample format for audio)
+ * - width and height for video
+ * - nb_samples and channel_layout for audio
+ *
+ * This function will fill AVFrame.data and AVFrame.buf arrays and, if
+ * necessary, allocate and fill AVFrame.extended_data and AVFrame.extended_buf.
+ * For planar formats, one buffer will be allocated for each plane.
+ *
+ * @warning: if frame already has been allocated, calling this function will
+ *           leak memory. In addition, undefined behavior can occur in certain
+ *           cases.
+ *
+ * @param frame frame in which to store the new buffers.
+ * @param align Required buffer size alignment. If equal to 0, alignment will be
+ *              chosen automatically for the current CPU. It is highly
+ *              recommended to pass 0 here unless you know what you are doing.
+ *
+ * @return 0 on success, a negative AVERROR on error.
+ */
+int av_frame_get_buffer(AVFrame *frame, int align);
+
+/**
+ * Check if the frame data is writable.
+ *
+ * @return A positive value if the frame data is writable (which is true if and
+ * only if each of the underlying buffers has only one reference, namely the one
+ * stored in this frame). Return 0 otherwise.
+ *
+ * If 1 is returned the answer is valid until av_buffer_ref() is called on any
+ * of the underlying AVBufferRefs (e.g. through av_frame_ref() or directly).
+ *
+ * @see av_frame_make_writable(), av_buffer_is_writable()
+ */
+int av_frame_is_writable(AVFrame *frame);
+
+/**
+ * Ensure that the frame data is writable, avoiding data copy if possible.
+ *
+ * Do nothing if the frame is writable, allocate new buffers and copy the data
+ * if it is not.
+ *
+ * @return 0 on success, a negative AVERROR on error.
+ *
+ * @see av_frame_is_writable(), av_buffer_is_writable(),
+ * av_buffer_make_writable()
+ */
+int av_frame_make_writable(AVFrame *frame);
+
+/**
+ * Copy the frame data from src to dst.
+ *
+ * This function does not allocate anything, dst must be already initialized and
+ * allocated with the same parameters as src.
+ *
+ * This function only copies the frame data (i.e. the contents of the data /
+ * extended data arrays), not any other properties.
+ *
+ * @return >= 0 on success, a negative AVERROR on error.
+ */
+int av_frame_copy(AVFrame *dst, const AVFrame *src);
+
+/**
+ * Copy only "metadata" fields from src to dst.
+ *
+ * Metadata for the purpose of this function are those fields that do not affect
+ * the data layout in the buffers.  E.g. pts, sample rate (for audio) or sample
+ * aspect ratio (for video), but not width/height or channel layout.
+ * Side data is also copied.
+ */
+int av_frame_copy_props(AVFrame *dst, const AVFrame *src);
+
+/**
+ * Get the buffer reference a given data plane is stored in.
+ *
+ * @param plane index of the data plane of interest in frame->extended_data.
+ *
+ * @return the buffer reference that contains the plane or NULL if the input
+ * frame is not valid.
+ */
+AVBufferRef *av_frame_get_plane_buffer(AVFrame *frame, int plane);
+
+/**
+ * Add a new side data to a frame.
+ *
+ * @param frame a frame to which the side data should be added
+ * @param type type of the added side data
+ * @param size size of the side data
+ *
+ * @return newly added side data on success, NULL on error
+ */
+AVFrameSideData *av_frame_new_side_data(AVFrame *frame,
+                                        enum AVFrameSideDataType type,
+                                        int size);
+
+/**
+ * Add a new side data to a frame from an existing AVBufferRef
+ *
+ * @param frame a frame to which the side data should be added
+ * @param type  the type of the added side data
+ * @param buf   an AVBufferRef to add as side data. The ownership of
+ *              the reference is transferred to the frame.
+ *
+ * @return newly added side data on success, NULL on error. On failure
+ *         the frame is unchanged and the AVBufferRef remains owned by
+ *         the caller.
+ */
+AVFrameSideData *av_frame_new_side_data_from_buf(AVFrame *frame,
+                                                 enum AVFrameSideDataType type,
+                                                 AVBufferRef *buf);
+
+/**
+ * @return a pointer to the side data of a given type on success, NULL if there
+ * is no side data with such type in this frame.
+ */
+AVFrameSideData *av_frame_get_side_data(const AVFrame *frame,
+                                        enum AVFrameSideDataType type);
+
+/**
+ * If side data of the supplied type exists in the frame, free it and remove it
+ * from the frame.
+ */
+void av_frame_remove_side_data(AVFrame *frame, enum AVFrameSideDataType type);
+
+
+/**
+ * Flags for frame cropping.
+ */
+enum {
+    /**
+     * Apply the maximum possible cropping, even if it requires setting the
+     * AVFrame.data[] entries to unaligned pointers. Passing unaligned data
+     * to FFmpeg API is generally not allowed, and causes undefined behavior
+     * (such as crashes). You can pass unaligned data only to FFmpeg APIs that
+     * are explicitly documented to accept it. Use this flag only if you
+     * absolutely know what you are doing.
+     */
+    AV_FRAME_CROP_UNALIGNED     = 1 << 0,
+};
+
+/**
+ * Crop the given video AVFrame according to its crop_left/crop_top/crop_right/
+ * crop_bottom fields. If cropping is successful, the function will adjust the
+ * data pointers and the width/height fields, and set the crop fields to 0.
+ *
+ * In all cases, the cropping boundaries will be rounded to the inherent
+ * alignment of the pixel format. In some cases, such as for opaque hwaccel
+ * formats, the left/top cropping is ignored. The crop fields are set to 0 even
+ * if the cropping was rounded or ignored.
+ *
+ * @param frame the frame which should be cropped
+ * @param flags Some combination of AV_FRAME_CROP_* flags, or 0.
+ *
+ * @return >= 0 on success, a negative AVERROR on error. If the cropping fields
+ * were invalid, AVERROR(ERANGE) is returned, and nothing is changed.
+ */
+int av_frame_apply_cropping(AVFrame *frame, int flags);
+
+/**
+ * @return a string identifying the side data type
+ */
+const char *av_frame_side_data_name(enum AVFrameSideDataType type);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_FRAME_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hash.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hash.c
new file mode 100644
index 000000000..75edb6db7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hash.c
@@ -0,0 +1,243 @@
+/*
+ * Copyright (C) 2013 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <stdint.h>
+#include "hash.h"
+
+#include "adler32.h"
+#include "crc.h"
+#include "md5.h"
+#include "murmur3.h"
+#include "ripemd.h"
+#include "sha.h"
+#include "sha512.h"
+
+#include "avstring.h"
+#include "base64.h"
+#include "error.h"
+#include "intreadwrite.h"
+#include "mem.h"
+
+enum hashtype {
+    MD5,
+    MURMUR3,
+    RIPEMD128,
+    RIPEMD160,
+    RIPEMD256,
+    RIPEMD320,
+    SHA160,
+    SHA224,
+    SHA256,
+    SHA512_224,
+    SHA512_256,
+    SHA384,
+    SHA512,
+    CRC32,
+    ADLER32,
+    NUM_HASHES
+};
+
+typedef struct AVHashContext {
+    void *ctx;
+    enum hashtype type;
+    const AVCRC *crctab;
+    uint32_t crc;
+} AVHashContext;
+
+static const struct {
+    const char *name;
+    int size;
+} hashdesc[] = {
+    [MD5]     = {"MD5",     16},
+    [MURMUR3] = {"murmur3", 16},
+    [RIPEMD128] = {"RIPEMD128", 16},
+    [RIPEMD160] = {"RIPEMD160", 20},
+    [RIPEMD256] = {"RIPEMD256", 32},
+    [RIPEMD320] = {"RIPEMD320", 40},
+    [SHA160]  = {"SHA160",  20},
+    [SHA224]  = {"SHA224",  28},
+    [SHA256]  = {"SHA256",  32},
+    [SHA512_224]  = {"SHA512/224",  28},
+    [SHA512_256]  = {"SHA512/256",  32},
+    [SHA384]  = {"SHA384",  48},
+    [SHA512]  = {"SHA512",  64},
+    [CRC32]   = {"CRC32",    4},
+    [ADLER32] = {"adler32",  4},
+};
+
+const char *av_hash_names(int i)
+{
+    if (i < 0 || i >= NUM_HASHES) return NULL;
+    return hashdesc[i].name;
+}
+
+const char *av_hash_get_name(const AVHashContext *ctx)
+{
+    return hashdesc[ctx->type].name;
+}
+
+int av_hash_get_size(const AVHashContext *ctx)
+{
+    return hashdesc[ctx->type].size;
+}
+
+int av_hash_alloc(AVHashContext **ctx, const char *name)
+{
+    AVHashContext *res;
+    int i;
+    *ctx = NULL;
+    for (i = 0; i < NUM_HASHES; i++)
+        if (av_strcasecmp(name, hashdesc[i].name) == 0)
+            break;
+    if (i >= NUM_HASHES) return AVERROR(EINVAL);
+    res = av_mallocz(sizeof(*res));
+    if (!res) return AVERROR(ENOMEM);
+    res->type = i;
+    switch (i) {
+    case MD5:     res->ctx = av_md5_alloc(); break;
+    case MURMUR3: res->ctx = av_murmur3_alloc(); break;
+    case RIPEMD128:
+    case RIPEMD160:
+    case RIPEMD256:
+    case RIPEMD320: res->ctx = av_ripemd_alloc(); break;
+    case SHA160:
+    case SHA224:
+    case SHA256:  res->ctx = av_sha_alloc(); break;
+    case SHA512_224:
+    case SHA512_256:
+    case SHA384:
+    case SHA512:  res->ctx = av_sha512_alloc(); break;
+    case CRC32:   res->crctab = av_crc_get_table(AV_CRC_32_IEEE_LE); break;
+    case ADLER32: break;
+    }
+    if (i != ADLER32 && i != CRC32 && !res->ctx) {
+        av_free(res);
+        return AVERROR(ENOMEM);
+    }
+    *ctx = res;
+    return 0;
+}
+
+void av_hash_init(AVHashContext *ctx)
+{
+    switch (ctx->type) {
+    case MD5:     av_md5_init(ctx->ctx); break;
+    case MURMUR3: av_murmur3_init(ctx->ctx); break;
+    case RIPEMD128: av_ripemd_init(ctx->ctx, 128); break;
+    case RIPEMD160: av_ripemd_init(ctx->ctx, 160); break;
+    case RIPEMD256: av_ripemd_init(ctx->ctx, 256); break;
+    case RIPEMD320: av_ripemd_init(ctx->ctx, 320); break;
+    case SHA160:  av_sha_init(ctx->ctx, 160); break;
+    case SHA224:  av_sha_init(ctx->ctx, 224); break;
+    case SHA256:  av_sha_init(ctx->ctx, 256); break;
+    case SHA512_224:  av_sha512_init(ctx->ctx, 224); break;
+    case SHA512_256:  av_sha512_init(ctx->ctx, 256); break;
+    case SHA384:  av_sha512_init(ctx->ctx, 384); break;
+    case SHA512:  av_sha512_init(ctx->ctx, 512); break;
+    case CRC32:   ctx->crc = UINT32_MAX; break;
+    case ADLER32: ctx->crc = 1; break;
+    }
+}
+
+#if FF_API_CRYPTO_SIZE_T
+void av_hash_update(AVHashContext *ctx, const uint8_t *src, int len)
+#else
+void av_hash_update(AVHashContext *ctx, const uint8_t *src, size_t len)
+#endif
+{
+    switch (ctx->type) {
+    case MD5:     av_md5_update(ctx->ctx, src, len); break;
+    case MURMUR3: av_murmur3_update(ctx->ctx, src, len); break;
+    case RIPEMD128:
+    case RIPEMD160:
+    case RIPEMD256:
+    case RIPEMD320: av_ripemd_update(ctx->ctx, src, len); break;
+    case SHA160:
+    case SHA224:
+    case SHA256:  av_sha_update(ctx->ctx, src, len); break;
+    case SHA512_224:
+    case SHA512_256:
+    case SHA384:
+    case SHA512:  av_sha512_update(ctx->ctx, src, len); break;
+    case CRC32:   ctx->crc = av_crc(ctx->crctab, ctx->crc, src, len); break;
+    case ADLER32: ctx->crc = av_adler32_update(ctx->crc, src, len); break;
+    }
+}
+
+void av_hash_final(AVHashContext *ctx, uint8_t *dst)
+{
+    switch (ctx->type) {
+    case MD5:     av_md5_final(ctx->ctx, dst); break;
+    case MURMUR3: av_murmur3_final(ctx->ctx, dst); break;
+    case RIPEMD128:
+    case RIPEMD160:
+    case RIPEMD256:
+    case RIPEMD320: av_ripemd_final(ctx->ctx, dst); break;
+    case SHA160:
+    case SHA224:
+    case SHA256:  av_sha_final(ctx->ctx, dst); break;
+    case SHA512_224:
+    case SHA512_256:
+    case SHA384:
+    case SHA512:  av_sha512_final(ctx->ctx, dst); break;
+    case CRC32:   AV_WB32(dst, ctx->crc ^ UINT32_MAX); break;
+    case ADLER32: AV_WB32(dst, ctx->crc); break;
+    }
+}
+
+void av_hash_final_bin(struct AVHashContext *ctx, uint8_t *dst, int size)
+{
+    uint8_t buf[AV_HASH_MAX_SIZE];
+    unsigned rsize = av_hash_get_size(ctx);
+
+    av_hash_final(ctx, buf);
+    memcpy(dst, buf, FFMIN(size, rsize));
+    if (size > rsize)
+        memset(dst + rsize, 0, size - rsize);
+}
+
+void av_hash_final_hex(struct AVHashContext *ctx, uint8_t *dst, int size)
+{
+    uint8_t buf[AV_HASH_MAX_SIZE];
+    unsigned rsize = av_hash_get_size(ctx), i;
+
+    av_hash_final(ctx, buf);
+    for (i = 0; i < FFMIN(rsize, size / 2); i++)
+        snprintf(dst + i * 2, size - i * 2, "%02x", buf[i]);
+}
+
+void av_hash_final_b64(struct AVHashContext *ctx, uint8_t *dst, int size)
+{
+    uint8_t buf[AV_HASH_MAX_SIZE], b64[AV_BASE64_SIZE(AV_HASH_MAX_SIZE)];
+    unsigned rsize = av_hash_get_size(ctx), osize;
+
+    av_hash_final(ctx, buf);
+    av_base64_encode(b64, sizeof(b64), buf, rsize);
+    osize = AV_BASE64_SIZE(rsize);
+    memcpy(dst, b64, FFMIN(osize, size));
+    if (size < osize)
+        dst[size - 1] = 0;
+}
+
+void av_hash_freep(AVHashContext **ctx)
+{
+    if (*ctx)
+        av_freep(&(*ctx)->ctx);
+    av_freep(ctx);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hash.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hash.h
new file mode 100644
index 000000000..7693e6bf0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hash.h
@@ -0,0 +1,269 @@
+/*
+ * Copyright (C) 2013 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu_hash_generic
+ * Generic hashing API
+ */
+
+#ifndef AVUTIL_HASH_H
+#define AVUTIL_HASH_H
+
+#include <stdint.h>
+
+#include "version.h"
+
+/**
+ * @defgroup lavu_hash Hash Functions
+ * @ingroup lavu_crypto
+ * Hash functions useful in multimedia.
+ *
+ * Hash functions are widely used in multimedia, from error checking and
+ * concealment to internal regression testing. libavutil has efficient
+ * implementations of a variety of hash functions that may be useful for
+ * FFmpeg and other multimedia applications.
+ *
+ * @{
+ *
+ * @defgroup lavu_hash_generic Generic Hashing API
+ * An abstraction layer for all hash functions supported by libavutil.
+ *
+ * If your application needs to support a wide range of different hash
+ * functions, then the Generic Hashing API is for you. It provides a generic,
+ * reusable API for @ref lavu_hash "all hash functions" implemented in libavutil.
+ * If you just need to use one particular hash function, use the @ref lavu_hash
+ * "individual hash" directly.
+ *
+ * @section Sample Code
+ *
+ * A basic template for using the Generic Hashing API follows:
+ *
+ * @code
+ * struct AVHashContext *ctx = NULL;
+ * const char *hash_name = NULL;
+ * uint8_t *output_buf = NULL;
+ *
+ * // Select from a string returned by av_hash_names()
+ * hash_name = ...;
+ *
+ * // Allocate a hash context
+ * ret = av_hash_alloc(&ctx, hash_name);
+ * if (ret < 0)
+ *     return ret;
+ *
+ * // Initialize the hash context
+ * av_hash_init(ctx);
+ *
+ * // Update the hash context with data
+ * while (data_left) {
+ *     av_hash_update(ctx, data, size);
+ * }
+ *
+ * // Now we have no more data, so it is time to finalize the hash and get the
+ * // output. But we need to first allocate an output buffer. Note that you can
+ * // use any memory allocation function, including malloc(), not just
+ * // av_malloc().
+ * output_buf = av_malloc(av_hash_get_size(ctx));
+ * if (!output_buf)
+ *     return AVERROR(ENOMEM);
+ *
+ * // Finalize the hash context.
+ * // You can use any of the av_hash_final*() functions provided, for other
+ * // output formats. If you do so, be sure to adjust the memory allocation
+ * // above. See the function documentation below for the exact amount of extra
+ * // memory needed.
+ * av_hash_final(ctx, output_buffer);
+ *
+ * // Free the context
+ * av_hash_freep(&ctx);
+ * @endcode
+ *
+ * @section Hash Function-Specific Information
+ * If the CRC32 hash is selected, the #AV_CRC_32_IEEE polynomial will be
+ * used.
+ *
+ * If the Murmur3 hash is selected, the default seed will be used. See @ref
+ * lavu_murmur3_seedinfo "Murmur3" for more information.
+ *
+ * @{
+ */
+
+/**
+ * @example ffhash.c
+ * This example is a simple command line application that takes one or more
+ * arguments. It demonstrates a typical use of the hashing API with allocation,
+ * initialization, updating, and finalizing.
+ */
+
+struct AVHashContext;
+
+/**
+ * Allocate a hash context for the algorithm specified by name.
+ *
+ * @return  >= 0 for success, a negative error code for failure
+ *
+ * @note The context is not initialized after a call to this function; you must
+ * call av_hash_init() to do so.
+ */
+int av_hash_alloc(struct AVHashContext **ctx, const char *name);
+
+/**
+ * Get the names of available hash algorithms.
+ *
+ * This function can be used to enumerate the algorithms.
+ *
+ * @param[in] i  Index of the hash algorithm, starting from 0
+ * @return       Pointer to a static string or `NULL` if `i` is out of range
+ */
+const char *av_hash_names(int i);
+
+/**
+ * Get the name of the algorithm corresponding to the given hash context.
+ */
+const char *av_hash_get_name(const struct AVHashContext *ctx);
+
+/**
+ * Maximum value that av_hash_get_size() will currently return.
+ *
+ * You can use this if you absolutely want or need to use static allocation for
+ * the output buffer and are fine with not supporting hashes newly added to
+ * libavutil without recompilation.
+ *
+ * @warning
+ * Adding new hashes with larger sizes, and increasing the macro while doing
+ * so, will not be considered an ABI change. To prevent your code from
+ * overflowing a buffer, either dynamically allocate the output buffer with
+ * av_hash_get_size(), or limit your use of the Hashing API to hashes that are
+ * already in FFmpeg during the time of compilation.
+ */
+#define AV_HASH_MAX_SIZE 64
+
+/**
+ * Get the size of the resulting hash value in bytes.
+ *
+ * The maximum value this function will currently return is available as macro
+ * #AV_HASH_MAX_SIZE.
+ *
+ * @param[in]     ctx Hash context
+ * @return            Size of the hash value in bytes
+ */
+int av_hash_get_size(const struct AVHashContext *ctx);
+
+/**
+ * Initialize or reset a hash context.
+ *
+ * @param[in,out] ctx Hash context
+ */
+void av_hash_init(struct AVHashContext *ctx);
+
+/**
+ * Update a hash context with additional data.
+ *
+ * @param[in,out] ctx Hash context
+ * @param[in]     src Data to be added to the hash context
+ * @param[in]     len Size of the additional data
+ */
+#if FF_API_CRYPTO_SIZE_T
+void av_hash_update(struct AVHashContext *ctx, const uint8_t *src, int len);
+#else
+void av_hash_update(struct AVHashContext *ctx, const uint8_t *src, size_t len);
+#endif
+
+/**
+ * Finalize a hash context and compute the actual hash value.
+ *
+ * The minimum size of `dst` buffer is given by av_hash_get_size() or
+ * #AV_HASH_MAX_SIZE. The use of the latter macro is discouraged.
+ *
+ * It is not safe to update or finalize a hash context again, if it has already
+ * been finalized.
+ *
+ * @param[in,out] ctx Hash context
+ * @param[out]    dst Where the final hash value will be stored
+ *
+ * @see av_hash_final_bin() provides an alternative API
+ */
+void av_hash_final(struct AVHashContext *ctx, uint8_t *dst);
+
+/**
+ * Finalize a hash context and store the actual hash value in a buffer.
+ *
+ * It is not safe to update or finalize a hash context again, if it has already
+ * been finalized.
+ *
+ * If `size` is smaller than the hash size (given by av_hash_get_size()), the
+ * hash is truncated; if size is larger, the buffer is padded with 0.
+ *
+ * @param[in,out] ctx  Hash context
+ * @param[out]    dst  Where the final hash value will be stored
+ * @param[in]     size Number of bytes to write to `dst`
+ */
+void av_hash_final_bin(struct AVHashContext *ctx, uint8_t *dst, int size);
+
+/**
+ * Finalize a hash context and store the hexadecimal representation of the
+ * actual hash value as a string.
+ *
+ * It is not safe to update or finalize a hash context again, if it has already
+ * been finalized.
+ *
+ * The string is always 0-terminated.
+ *
+ * If `size` is smaller than `2 * hash_size + 1`, where `hash_size` is the
+ * value returned by av_hash_get_size(), the string will be truncated.
+ *
+ * @param[in,out] ctx  Hash context
+ * @param[out]    dst  Where the string will be stored
+ * @param[in]     size Maximum number of bytes to write to `dst`
+ */
+void av_hash_final_hex(struct AVHashContext *ctx, uint8_t *dst, int size);
+
+/**
+ * Finalize a hash context and store the Base64 representation of the
+ * actual hash value as a string.
+ *
+ * It is not safe to update or finalize a hash context again, if it has already
+ * been finalized.
+ *
+ * The string is always 0-terminated.
+ *
+ * If `size` is smaller than AV_BASE64_SIZE(hash_size), where `hash_size` is
+ * the value returned by av_hash_get_size(), the string will be truncated.
+ *
+ * @param[in,out] ctx  Hash context
+ * @param[out]    dst  Where the final hash value will be stored
+ * @param[in]     size Maximum number of bytes to write to `dst`
+ */
+void av_hash_final_b64(struct AVHashContext *ctx, uint8_t *dst, int size);
+
+/**
+ * Free hash context and set hash context pointer to `NULL`.
+ *
+ * @param[in,out] ctx  Pointer to hash context
+ */
+void av_hash_freep(struct AVHashContext **ctx);
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* AVUTIL_HASH_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hdr_dynamic_metadata.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hdr_dynamic_metadata.c
new file mode 100644
index 000000000..0fa1ee82d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hdr_dynamic_metadata.c
@@ -0,0 +1,47 @@
+/**
+ * Copyright (c) 2018 Mohammad Izadi <moh.izadi at gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "hdr_dynamic_metadata.h"
+#include "mem.h"
+
+AVDynamicHDRPlus *av_dynamic_hdr_plus_alloc(size_t *size)
+{
+    AVDynamicHDRPlus *hdr_plus = av_mallocz(sizeof(AVDynamicHDRPlus));
+    if (!hdr_plus)
+        return NULL;
+
+    if (size)
+        *size = sizeof(*hdr_plus);
+
+    return hdr_plus;
+}
+
+AVDynamicHDRPlus *av_dynamic_hdr_plus_create_side_data(AVFrame *frame)
+{
+    AVFrameSideData *side_data = av_frame_new_side_data(frame,
+                                                        AV_FRAME_DATA_DYNAMIC_HDR_PLUS,
+                                                        sizeof(AVDynamicHDRPlus));
+    if (!side_data)
+        return NULL;
+
+    memset(side_data->data, 0, sizeof(AVDynamicHDRPlus));
+
+    return (AVDynamicHDRPlus *)side_data->data;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hdr_dynamic_metadata.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hdr_dynamic_metadata.h
new file mode 100644
index 000000000..2d72de56a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hdr_dynamic_metadata.h
@@ -0,0 +1,343 @@
+/*
+ * Copyright (c) 2018 Mohammad Izadi <moh.izadi at gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HDR_DYNAMIC_METADATA_H
+#define AVUTIL_HDR_DYNAMIC_METADATA_H
+
+#include "frame.h"
+#include "rational.h"
+
+/**
+ * Option for overlapping elliptical pixel selectors in an image.
+ */
+enum AVHDRPlusOverlapProcessOption {
+    AV_HDR_PLUS_OVERLAP_PROCESS_WEIGHTED_AVERAGING = 0,
+    AV_HDR_PLUS_OVERLAP_PROCESS_LAYERING = 1,
+};
+
+/**
+ * Represents the percentile at a specific percentage in
+ * a distribution.
+ */
+typedef struct AVHDRPlusPercentile {
+    /**
+     * The percentage value corresponding to a specific percentile linearized
+     * RGB value in the processing window in the scene. The value shall be in
+     * the range of 0 to100, inclusive.
+     */
+    uint8_t percentage;
+
+    /**
+     * The linearized maxRGB value at a specific percentile in the processing
+     * window in the scene. The value shall be in the range of 0 to 1, inclusive
+     * and in multiples of 0.00001.
+     */
+    AVRational percentile;
+} AVHDRPlusPercentile;
+
+/**
+ * Color transform parameters at a processing window in a dynamic metadata for
+ * SMPTE 2094-40.
+ */
+typedef struct AVHDRPlusColorTransformParams {
+    /**
+     * The relative x coordinate of the top left pixel of the processing
+     * window. The value shall be in the range of 0 and 1, inclusive and
+     * in multiples of 1/(width of Picture - 1). The value 1 corresponds
+     * to the absolute coordinate of width of Picture - 1. The value for
+     * first processing window shall be 0.
+     */
+    AVRational window_upper_left_corner_x;
+
+    /**
+     * The relative y coordinate of the top left pixel of the processing
+     * window. The value shall be in the range of 0 and 1, inclusive and
+     * in multiples of 1/(height of Picture - 1). The value 1 corresponds
+     * to the absolute coordinate of height of Picture - 1. The value for
+     * first processing window shall be 0.
+     */
+    AVRational window_upper_left_corner_y;
+
+    /**
+     * The relative x coordinate of the bottom right pixel of the processing
+     * window. The value shall be in the range of 0 and 1, inclusive and
+     * in multiples of 1/(width of Picture - 1). The value 1 corresponds
+     * to the absolute coordinate of width of Picture - 1. The value for
+     * first processing window shall be 1.
+     */
+    AVRational window_lower_right_corner_x;
+
+    /**
+     * The relative y coordinate of the bottom right pixel of the processing
+     * window. The value shall be in the range of 0 and 1, inclusive and
+     * in multiples of 1/(height of Picture - 1). The value 1 corresponds
+     * to the absolute coordinate of height of Picture - 1. The value for
+     * first processing window shall be 1.
+     */
+    AVRational window_lower_right_corner_y;
+
+    /**
+     * The x coordinate of the center position of the concentric internal and
+     * external ellipses of the elliptical pixel selector in the processing
+     * window. The value shall be in the range of 0 to (width of Picture - 1),
+     * inclusive and in multiples of 1 pixel.
+     */
+    uint16_t center_of_ellipse_x;
+
+    /**
+     * The y coordinate of the center position of the concentric internal and
+     * external ellipses of the elliptical pixel selector in the processing
+     * window. The value shall be in the range of 0 to (height of Picture - 1),
+     * inclusive and in multiples of 1 pixel.
+     */
+    uint16_t center_of_ellipse_y;
+
+    /**
+     * The clockwise rotation angle in degree of arc with respect to the
+     * positive direction of the x-axis of the concentric internal and external
+     * ellipses of the elliptical pixel selector in the processing window. The
+     * value shall be in the range of 0 to 180, inclusive and in multiples of 1.
+     */
+    uint8_t rotation_angle;
+
+    /**
+     * The semi-major axis value of the internal ellipse of the elliptical pixel
+     * selector in amount of pixels in the processing window. The value shall be
+     * in the range of 1 to 65535, inclusive and in multiples of 1 pixel.
+     */
+    uint16_t semimajor_axis_internal_ellipse;
+
+    /**
+     * The semi-major axis value of the external ellipse of the elliptical pixel
+     * selector in amount of pixels in the processing window. The value
+     * shall not be less than semimajor_axis_internal_ellipse of the current
+     * processing window. The value shall be in the range of 1 to 65535,
+     * inclusive and in multiples of 1 pixel.
+     */
+    uint16_t semimajor_axis_external_ellipse;
+
+    /**
+     * The semi-minor axis value of the external ellipse of the elliptical pixel
+     * selector in amount of pixels in the processing window. The value shall be
+     * in the range of 1 to 65535, inclusive and in multiples of 1 pixel.
+     */
+    uint16_t semiminor_axis_external_ellipse;
+
+    /**
+     * Overlap process option indicates one of the two methods of combining
+     * rendered pixels in the processing window in an image with at least one
+     * elliptical pixel selector. For overlapping elliptical pixel selectors
+     * in an image, overlap_process_option shall have the same value.
+     */
+    enum AVHDRPlusOverlapProcessOption overlap_process_option;
+
+    /**
+     * The maximum of the color components of linearized RGB values in the
+     * processing window in the scene. The values should be in the range of 0 to
+     * 1, inclusive and in multiples of 0.00001. maxscl[ 0 ], maxscl[ 1 ], and
+     * maxscl[ 2 ] are corresponding to R, G, B color components respectively.
+     */
+    AVRational maxscl[3];
+
+    /**
+     * The average of linearized maxRGB values in the processing window in the
+     * scene. The value should be in the range of 0 to 1, inclusive and in
+     * multiples of 0.00001.
+     */
+    AVRational average_maxrgb;
+
+    /**
+     * The number of linearized maxRGB values at given percentiles in the
+     * processing window in the scene. The maximum value shall be 15.
+     */
+    uint8_t num_distribution_maxrgb_percentiles;
+
+    /**
+     * The linearized maxRGB values at given percentiles in the
+     * processing window in the scene.
+     */
+    AVHDRPlusPercentile distribution_maxrgb[15];
+
+    /**
+     * The fraction of selected pixels in the image that contains the brightest
+     * pixel in the scene. The value shall be in the range of 0 to 1, inclusive
+     * and in multiples of 0.001.
+     */
+    AVRational fraction_bright_pixels;
+
+    /**
+     * This flag indicates that the metadata for the tone mapping function in
+     * the processing window is present (for value of 1).
+     */
+    uint8_t tone_mapping_flag;
+
+    /**
+     * The x coordinate of the separation point between the linear part and the
+     * curved part of the tone mapping function. The value shall be in the range
+     * of 0 to 1, excluding 0 and in multiples of 1/4095.
+     */
+    AVRational knee_point_x;
+
+    /**
+     * The y coordinate of the separation point between the linear part and the
+     * curved part of the tone mapping function. The value shall be in the range
+     * of 0 to 1, excluding 0 and in multiples of 1/4095.
+     */
+    AVRational knee_point_y;
+
+    /**
+     * The number of the intermediate anchor parameters of the tone mapping
+     * function in the processing window. The maximum value shall be 15.
+     */
+    uint8_t num_bezier_curve_anchors;
+
+    /**
+     * The intermediate anchor parameters of the tone mapping function in the
+     * processing window in the scene. The values should be in the range of 0
+     * to 1, inclusive and in multiples of 1/1023.
+     */
+    AVRational bezier_curve_anchors[15];
+
+    /**
+     * This flag shall be equal to 0 in bitstreams conforming to this version of
+     * this Specification. Other values are reserved for future use.
+     */
+    uint8_t color_saturation_mapping_flag;
+
+    /**
+     * The color saturation gain in the processing window in the scene. The
+     * value shall be in the range of 0 to 63/8, inclusive and in multiples of
+     * 1/8. The default value shall be 1.
+     */
+    AVRational color_saturation_weight;
+} AVHDRPlusColorTransformParams;
+
+/**
+ * This struct represents dynamic metadata for color volume transform -
+ * application 4 of SMPTE 2094-40:2016 standard.
+ *
+ * To be used as payload of a AVFrameSideData or AVPacketSideData with the
+ * appropriate type.
+ *
+ * @note The struct should be allocated with
+ * av_dynamic_hdr_plus_alloc() and its size is not a part of
+ * the public ABI.
+ */
+typedef struct AVDynamicHDRPlus {
+    /**
+     * Country code by Rec. ITU-T T.35 Annex A. The value shall be 0xB5.
+     */
+    uint8_t itu_t_t35_country_code;
+
+    /**
+     * Application version in the application defining document in ST-2094
+     * suite. The value shall be set to 0.
+     */
+    uint8_t application_version;
+
+    /**
+     * The number of processing windows. The value shall be in the range
+     * of 1 to 3, inclusive.
+     */
+    uint8_t num_windows;
+
+    /**
+     * The color transform parameters for every processing window.
+     */
+    AVHDRPlusColorTransformParams params[3];
+
+    /**
+     * The nominal maximum display luminance of the targeted system display,
+     * in units of 0.0001 candelas per square metre. The value shall be in
+     * the range of 0 to 10000, inclusive.
+     */
+    AVRational targeted_system_display_maximum_luminance;
+
+    /**
+     * This flag shall be equal to 0 in bit streams conforming to this version
+     * of this Specification. The value 1 is reserved for future use.
+     */
+    uint8_t targeted_system_display_actual_peak_luminance_flag;
+
+    /**
+     * The number of rows in the targeted system_display_actual_peak_luminance
+     * array. The value shall be in the range of 2 to 25, inclusive.
+     */
+    uint8_t num_rows_targeted_system_display_actual_peak_luminance;
+
+    /**
+     * The number of columns in the
+     * targeted_system_display_actual_peak_luminance array. The value shall be
+     * in the range of 2 to 25, inclusive.
+     */
+    uint8_t num_cols_targeted_system_display_actual_peak_luminance;
+
+    /**
+     * The normalized actual peak luminance of the targeted system display. The
+     * values should be in the range of 0 to 1, inclusive and in multiples of
+     * 1/15.
+     */
+    AVRational targeted_system_display_actual_peak_luminance[25][25];
+
+    /**
+     * This flag shall be equal to 0 in bitstreams conforming to this version of
+     * this Specification. The value 1 is reserved for future use.
+     */
+    uint8_t mastering_display_actual_peak_luminance_flag;
+
+    /**
+     * The number of rows in the mastering_display_actual_peak_luminance array.
+     * The value shall be in the range of 2 to 25, inclusive.
+     */
+    uint8_t num_rows_mastering_display_actual_peak_luminance;
+
+    /**
+     * The number of columns in the mastering_display_actual_peak_luminance
+     * array. The value shall be in the range of 2 to 25, inclusive.
+     */
+    uint8_t num_cols_mastering_display_actual_peak_luminance;
+
+    /**
+     * The normalized actual peak luminance of the mastering display used for
+     * mastering the image essence. The values should be in the range of 0 to 1,
+     * inclusive and in multiples of 1/15.
+     */
+    AVRational mastering_display_actual_peak_luminance[25][25];
+} AVDynamicHDRPlus;
+
+/**
+ * Allocate an AVDynamicHDRPlus structure and set its fields to
+ * default values. The resulting struct can be freed using av_freep().
+ *
+ * @return An AVDynamicHDRPlus filled with default values or NULL
+ *         on failure.
+ */
+AVDynamicHDRPlus *av_dynamic_hdr_plus_alloc(size_t *size);
+
+/**
+ * Allocate a complete AVDynamicHDRPlus and add it to the frame.
+ * @param frame The frame which side data is added to.
+ *
+ * @return The AVDynamicHDRPlus structure to be filled by caller or NULL
+ *         on failure.
+ */
+AVDynamicHDRPlus *av_dynamic_hdr_plus_create_side_data(AVFrame *frame);
+
+#endif /* AVUTIL_HDR_DYNAMIC_METADATA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hmac.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hmac.c
new file mode 100644
index 000000000..d064a105f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hmac.c
@@ -0,0 +1,196 @@
+/*
+ * Copyright (C) 2012 Martin Storsjo
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "attributes.h"
+#include "hmac.h"
+#include "md5.h"
+#include "sha.h"
+#include "sha512.h"
+#include "mem.h"
+#include "version.h"
+
+#define MAX_HASHLEN 64
+#define MAX_BLOCKLEN 128
+
+typedef void (*hmac_final)(void *ctx, uint8_t *dst);
+#if FF_API_CRYPTO_SIZE_T
+typedef void (*hmac_update)(void *ctx, const uint8_t *src, int len);
+#else
+typedef void (*hmac_update)(void *ctx, const uint8_t *src, size_t len);
+#endif
+typedef void (*hmac_init)(void *ctx);
+
+struct AVHMAC {
+    void *hash;
+    int blocklen, hashlen;
+    hmac_final  final;
+    hmac_update update;
+    hmac_init   init;
+    uint8_t key[MAX_BLOCKLEN];
+    int keylen;
+};
+
+#define DEFINE_SHA(bits)                           \
+static av_cold void sha ## bits ##_init(void *ctx) \
+{                                                  \
+    av_sha_init(ctx, bits);                        \
+}
+
+#define DEFINE_SHA512(bits)                        \
+static av_cold void sha ## bits ##_init(void *ctx) \
+{                                                  \
+    av_sha512_init(ctx, bits);                     \
+}
+
+DEFINE_SHA(160)
+DEFINE_SHA(224)
+DEFINE_SHA(256)
+DEFINE_SHA512(384)
+DEFINE_SHA512(512)
+
+AVHMAC *av_hmac_alloc(enum AVHMACType type)
+{
+    AVHMAC *c = av_mallocz(sizeof(*c));
+    if (!c)
+        return NULL;
+    switch (type) {
+    case AV_HMAC_MD5:
+        c->blocklen = 64;
+        c->hashlen  = 16;
+        c->init     = (hmac_init) av_md5_init;
+        c->update   = (hmac_update) av_md5_update;
+        c->final    = (hmac_final) av_md5_final;
+        c->hash     = av_md5_alloc();
+        break;
+    case AV_HMAC_SHA1:
+        c->blocklen = 64;
+        c->hashlen  = 20;
+        c->init     = sha160_init;
+        c->update   = (hmac_update) av_sha_update;
+        c->final    = (hmac_final) av_sha_final;
+        c->hash     = av_sha_alloc();
+        break;
+    case AV_HMAC_SHA224:
+        c->blocklen = 64;
+        c->hashlen  = 28;
+        c->init     = sha224_init;
+        c->update   = (hmac_update) av_sha_update;
+        c->final    = (hmac_final) av_sha_final;
+        c->hash     = av_sha_alloc();
+        break;
+    case AV_HMAC_SHA256:
+        c->blocklen = 64;
+        c->hashlen  = 32;
+        c->init     = sha256_init;
+        c->update   = (hmac_update) av_sha_update;
+        c->final    = (hmac_final) av_sha_final;
+        c->hash     = av_sha_alloc();
+        break;
+    case AV_HMAC_SHA384:
+        c->blocklen = 128;
+        c->hashlen  = 48;
+        c->init     = sha384_init;
+        c->update   = (hmac_update) av_sha512_update;
+        c->final    = (hmac_final) av_sha512_final;
+        c->hash     = av_sha512_alloc();
+        break;
+    case AV_HMAC_SHA512:
+        c->blocklen = 128;
+        c->hashlen  = 64;
+        c->init     = sha512_init;
+        c->update   = (hmac_update) av_sha512_update;
+        c->final    = (hmac_final) av_sha512_final;
+        c->hash     = av_sha512_alloc();
+        break;
+    default:
+        av_free(c);
+        return NULL;
+    }
+    if (!c->hash) {
+        av_free(c);
+        return NULL;
+    }
+    return c;
+}
+
+void av_hmac_free(AVHMAC *c)
+{
+    if (!c)
+        return;
+    av_freep(&c->hash);
+    av_free(c);
+}
+
+void av_hmac_init(AVHMAC *c, const uint8_t *key, unsigned int keylen)
+{
+    int i;
+    uint8_t block[MAX_BLOCKLEN];
+    if (keylen > c->blocklen) {
+        c->init(c->hash);
+        c->update(c->hash, key, keylen);
+        c->final(c->hash, c->key);
+        c->keylen = c->hashlen;
+    } else {
+        memcpy(c->key, key, keylen);
+        c->keylen = keylen;
+    }
+    c->init(c->hash);
+    for (i = 0; i < c->keylen; i++)
+        block[i] = c->key[i] ^ 0x36;
+    for (i = c->keylen; i < c->blocklen; i++)
+        block[i] = 0x36;
+    c->update(c->hash, block, c->blocklen);
+}
+
+void av_hmac_update(AVHMAC *c, const uint8_t *data, unsigned int len)
+{
+    c->update(c->hash, data, len);
+}
+
+int av_hmac_final(AVHMAC *c, uint8_t *out, unsigned int outlen)
+{
+    uint8_t block[MAX_BLOCKLEN];
+    int i;
+    if (outlen < c->hashlen)
+        return AVERROR(EINVAL);
+    c->final(c->hash, out);
+    c->init(c->hash);
+    for (i = 0; i < c->keylen; i++)
+        block[i] = c->key[i] ^ 0x5C;
+    for (i = c->keylen; i < c->blocklen; i++)
+        block[i] = 0x5C;
+    c->update(c->hash, block, c->blocklen);
+    c->update(c->hash, out, c->hashlen);
+    c->final(c->hash, out);
+    return c->hashlen;
+}
+
+int av_hmac_calc(AVHMAC *c, const uint8_t *data, unsigned int len,
+                 const uint8_t *key, unsigned int keylen,
+                 uint8_t *out, unsigned int outlen)
+{
+    av_hmac_init(c, key, keylen);
+    av_hmac_update(c, data, len);
+    return av_hmac_final(c, out, outlen);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hmac.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hmac.h
new file mode 100644
index 000000000..412e95071
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hmac.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2012 Martin Storsjo
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HMAC_H
+#define AVUTIL_HMAC_H
+
+#include <stdint.h>
+
+#include "version.h"
+/**
+ * @defgroup lavu_hmac HMAC
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+enum AVHMACType {
+    AV_HMAC_MD5,
+    AV_HMAC_SHA1,
+    AV_HMAC_SHA224,
+    AV_HMAC_SHA256,
+    AV_HMAC_SHA384,
+    AV_HMAC_SHA512,
+};
+
+typedef struct AVHMAC AVHMAC;
+
+/**
+ * Allocate an AVHMAC context.
+ * @param type The hash function used for the HMAC.
+ */
+AVHMAC *av_hmac_alloc(enum AVHMACType type);
+
+/**
+ * Free an AVHMAC context.
+ * @param ctx The context to free, may be NULL
+ */
+void av_hmac_free(AVHMAC *ctx);
+
+/**
+ * Initialize an AVHMAC context with an authentication key.
+ * @param ctx    The HMAC context
+ * @param key    The authentication key
+ * @param keylen The length of the key, in bytes
+ */
+void av_hmac_init(AVHMAC *ctx, const uint8_t *key, unsigned int keylen);
+
+/**
+ * Hash data with the HMAC.
+ * @param ctx  The HMAC context
+ * @param data The data to hash
+ * @param len  The length of the data, in bytes
+ */
+void av_hmac_update(AVHMAC *ctx, const uint8_t *data, unsigned int len);
+
+/**
+ * Finish hashing and output the HMAC digest.
+ * @param ctx    The HMAC context
+ * @param out    The output buffer to write the digest into
+ * @param outlen The length of the out buffer, in bytes
+ * @return       The number of bytes written to out, or a negative error code.
+ */
+int av_hmac_final(AVHMAC *ctx, uint8_t *out, unsigned int outlen);
+
+/**
+ * Hash an array of data with a key.
+ * @param ctx    The HMAC context
+ * @param data   The data to hash
+ * @param len    The length of the data, in bytes
+ * @param key    The authentication key
+ * @param keylen The length of the key, in bytes
+ * @param out    The output buffer to write the digest into
+ * @param outlen The length of the out buffer, in bytes
+ * @return       The number of bytes written to out, or a negative error code.
+ */
+int av_hmac_calc(AVHMAC *ctx, const uint8_t *data, unsigned int len,
+                 const uint8_t *key, unsigned int keylen,
+                 uint8_t *out, unsigned int outlen);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_HMAC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext.c
new file mode 100644
index 000000000..f1e404ab2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext.c
@@ -0,0 +1,879 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "buffer.h"
+#include "common.h"
+#include "hwcontext.h"
+#include "hwcontext_internal.h"
+#include "imgutils.h"
+#include "log.h"
+#include "mem.h"
+#include "pixdesc.h"
+#include "pixfmt.h"
+
+static const HWContextType * const hw_table[] = {
+#if CONFIG_CUDA
+    &ff_hwcontext_type_cuda,
+#endif
+#if CONFIG_D3D11VA
+    &ff_hwcontext_type_d3d11va,
+#endif
+#if CONFIG_LIBDRM
+    &ff_hwcontext_type_drm,
+#endif
+#if CONFIG_DXVA2
+    &ff_hwcontext_type_dxva2,
+#endif
+#if CONFIG_OPENCL
+    &ff_hwcontext_type_opencl,
+#endif
+#if CONFIG_QSV
+    &ff_hwcontext_type_qsv,
+#endif
+#if CONFIG_VAAPI
+    &ff_hwcontext_type_vaapi,
+#endif
+#if CONFIG_VDPAU
+    &ff_hwcontext_type_vdpau,
+#endif
+#if CONFIG_VIDEOTOOLBOX
+    &ff_hwcontext_type_videotoolbox,
+#endif
+#if CONFIG_MEDIACODEC
+    &ff_hwcontext_type_mediacodec,
+#endif
+    NULL,
+};
+
+static const char *const hw_type_names[] = {
+    [AV_HWDEVICE_TYPE_CUDA]   = "cuda",
+    [AV_HWDEVICE_TYPE_DRM]    = "drm",
+    [AV_HWDEVICE_TYPE_DXVA2]  = "dxva2",
+    [AV_HWDEVICE_TYPE_D3D11VA] = "d3d11va",
+    [AV_HWDEVICE_TYPE_OPENCL] = "opencl",
+    [AV_HWDEVICE_TYPE_QSV]    = "qsv",
+    [AV_HWDEVICE_TYPE_VAAPI]  = "vaapi",
+    [AV_HWDEVICE_TYPE_VDPAU]  = "vdpau",
+    [AV_HWDEVICE_TYPE_VIDEOTOOLBOX] = "videotoolbox",
+    [AV_HWDEVICE_TYPE_MEDIACODEC] = "mediacodec",
+};
+
+enum AVHWDeviceType av_hwdevice_find_type_by_name(const char *name)
+{
+    int type;
+    for (type = 0; type < FF_ARRAY_ELEMS(hw_type_names); type++) {
+        if (hw_type_names[type] && !strcmp(hw_type_names[type], name))
+            return type;
+    }
+    return AV_HWDEVICE_TYPE_NONE;
+}
+
+const char *av_hwdevice_get_type_name(enum AVHWDeviceType type)
+{
+    if (type > AV_HWDEVICE_TYPE_NONE &&
+        type < FF_ARRAY_ELEMS(hw_type_names))
+        return hw_type_names[type];
+    else
+        return NULL;
+}
+
+enum AVHWDeviceType av_hwdevice_iterate_types(enum AVHWDeviceType prev)
+{
+    enum AVHWDeviceType next;
+    int i, set = 0;
+    for (i = 0; hw_table[i]; i++) {
+        if (prev != AV_HWDEVICE_TYPE_NONE && hw_table[i]->type <= prev)
+            continue;
+        if (!set || hw_table[i]->type < next) {
+            next = hw_table[i]->type;
+            set = 1;
+        }
+    }
+    return set ? next : AV_HWDEVICE_TYPE_NONE;
+}
+
+static const AVClass hwdevice_ctx_class = {
+    .class_name = "AVHWDeviceContext",
+    .item_name  = av_default_item_name,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+static void hwdevice_ctx_free(void *opaque, uint8_t *data)
+{
+    AVHWDeviceContext *ctx = (AVHWDeviceContext*)data;
+
+    /* uninit might still want access the hw context and the user
+     * free() callback might destroy it, so uninit has to be called first */
+    if (ctx->internal->hw_type->device_uninit)
+        ctx->internal->hw_type->device_uninit(ctx);
+
+    if (ctx->free)
+        ctx->free(ctx);
+
+    av_buffer_unref(&ctx->internal->source_device);
+
+    av_freep(&ctx->hwctx);
+    av_freep(&ctx->internal->priv);
+    av_freep(&ctx->internal);
+    av_freep(&ctx);
+}
+
+AVBufferRef *av_hwdevice_ctx_alloc(enum AVHWDeviceType type)
+{
+    AVHWDeviceContext *ctx;
+    AVBufferRef *buf;
+    const HWContextType *hw_type = NULL;
+    int i;
+
+    for (i = 0; hw_table[i]; i++) {
+        if (hw_table[i]->type == type) {
+            hw_type = hw_table[i];
+            break;
+        }
+    }
+    if (!hw_type)
+        return NULL;
+
+    ctx = av_mallocz(sizeof(*ctx));
+    if (!ctx)
+        return NULL;
+
+    ctx->internal = av_mallocz(sizeof(*ctx->internal));
+    if (!ctx->internal)
+        goto fail;
+
+    if (hw_type->device_priv_size) {
+        ctx->internal->priv = av_mallocz(hw_type->device_priv_size);
+        if (!ctx->internal->priv)
+            goto fail;
+    }
+
+    if (hw_type->device_hwctx_size) {
+        ctx->hwctx = av_mallocz(hw_type->device_hwctx_size);
+        if (!ctx->hwctx)
+            goto fail;
+    }
+
+    buf = av_buffer_create((uint8_t*)ctx, sizeof(*ctx),
+                           hwdevice_ctx_free, NULL,
+                           AV_BUFFER_FLAG_READONLY);
+    if (!buf)
+        goto fail;
+
+    ctx->type     = type;
+    ctx->av_class = &hwdevice_ctx_class;
+
+    ctx->internal->hw_type = hw_type;
+
+    return buf;
+
+fail:
+    if (ctx->internal)
+        av_freep(&ctx->internal->priv);
+    av_freep(&ctx->internal);
+    av_freep(&ctx->hwctx);
+    av_freep(&ctx);
+    return NULL;
+}
+
+int av_hwdevice_ctx_init(AVBufferRef *ref)
+{
+    AVHWDeviceContext *ctx = (AVHWDeviceContext*)ref->data;
+    int ret;
+
+    if (ctx->internal->hw_type->device_init) {
+        ret = ctx->internal->hw_type->device_init(ctx);
+        if (ret < 0)
+            goto fail;
+    }
+
+    return 0;
+fail:
+    if (ctx->internal->hw_type->device_uninit)
+        ctx->internal->hw_type->device_uninit(ctx);
+    return ret;
+}
+
+static const AVClass hwframe_ctx_class = {
+    .class_name = "AVHWFramesContext",
+    .item_name  = av_default_item_name,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+static void hwframe_ctx_free(void *opaque, uint8_t *data)
+{
+    AVHWFramesContext *ctx = (AVHWFramesContext*)data;
+
+    if (ctx->internal->pool_internal)
+        av_buffer_pool_uninit(&ctx->internal->pool_internal);
+
+    if (ctx->internal->hw_type->frames_uninit)
+        ctx->internal->hw_type->frames_uninit(ctx);
+
+    if (ctx->free)
+        ctx->free(ctx);
+
+    av_buffer_unref(&ctx->internal->source_frames);
+
+    av_buffer_unref(&ctx->device_ref);
+
+    av_freep(&ctx->hwctx);
+    av_freep(&ctx->internal->priv);
+    av_freep(&ctx->internal);
+    av_freep(&ctx);
+}
+
+AVBufferRef *av_hwframe_ctx_alloc(AVBufferRef *device_ref_in)
+{
+    AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)device_ref_in->data;
+    const HWContextType  *hw_type = device_ctx->internal->hw_type;
+    AVHWFramesContext *ctx;
+    AVBufferRef *buf, *device_ref = NULL;
+
+    ctx = av_mallocz(sizeof(*ctx));
+    if (!ctx)
+        return NULL;
+
+    ctx->internal = av_mallocz(sizeof(*ctx->internal));
+    if (!ctx->internal)
+        goto fail;
+
+    if (hw_type->frames_priv_size) {
+        ctx->internal->priv = av_mallocz(hw_type->frames_priv_size);
+        if (!ctx->internal->priv)
+            goto fail;
+    }
+
+    if (hw_type->frames_hwctx_size) {
+        ctx->hwctx = av_mallocz(hw_type->frames_hwctx_size);
+        if (!ctx->hwctx)
+            goto fail;
+    }
+
+    device_ref = av_buffer_ref(device_ref_in);
+    if (!device_ref)
+        goto fail;
+
+    buf = av_buffer_create((uint8_t*)ctx, sizeof(*ctx),
+                           hwframe_ctx_free, NULL,
+                           AV_BUFFER_FLAG_READONLY);
+    if (!buf)
+        goto fail;
+
+    ctx->av_class   = &hwframe_ctx_class;
+    ctx->device_ref = device_ref;
+    ctx->device_ctx = device_ctx;
+    ctx->format     = AV_PIX_FMT_NONE;
+    ctx->sw_format  = AV_PIX_FMT_NONE;
+
+    ctx->internal->hw_type = hw_type;
+
+    return buf;
+
+fail:
+    if (device_ref)
+        av_buffer_unref(&device_ref);
+    if (ctx->internal)
+        av_freep(&ctx->internal->priv);
+    av_freep(&ctx->internal);
+    av_freep(&ctx->hwctx);
+    av_freep(&ctx);
+    return NULL;
+}
+
+static int hwframe_pool_prealloc(AVBufferRef *ref)
+{
+    AVHWFramesContext *ctx = (AVHWFramesContext*)ref->data;
+    AVFrame **frames;
+    int i, ret = 0;
+
+    frames = av_mallocz_array(ctx->initial_pool_size, sizeof(*frames));
+    if (!frames)
+        return AVERROR(ENOMEM);
+
+    for (i = 0; i < ctx->initial_pool_size; i++) {
+        frames[i] = av_frame_alloc();
+        if (!frames[i])
+            goto fail;
+
+        ret = av_hwframe_get_buffer(ref, frames[i], 0);
+        if (ret < 0)
+            goto fail;
+    }
+
+fail:
+    for (i = 0; i < ctx->initial_pool_size; i++)
+        av_frame_free(&frames[i]);
+    av_freep(&frames);
+
+    return ret;
+}
+
+int av_hwframe_ctx_init(AVBufferRef *ref)
+{
+    AVHWFramesContext *ctx = (AVHWFramesContext*)ref->data;
+    const enum AVPixelFormat *pix_fmt;
+    int ret;
+
+    if (ctx->internal->source_frames) {
+        /* A derived frame context is already initialised. */
+        return 0;
+    }
+
+    /* validate the pixel format */
+    for (pix_fmt = ctx->internal->hw_type->pix_fmts; *pix_fmt != AV_PIX_FMT_NONE; pix_fmt++) {
+        if (*pix_fmt == ctx->format)
+            break;
+    }
+    if (*pix_fmt == AV_PIX_FMT_NONE) {
+        av_log(ctx, AV_LOG_ERROR,
+               "The hardware pixel format '%s' is not supported by the device type '%s'\n",
+               av_get_pix_fmt_name(ctx->format), ctx->internal->hw_type->name);
+        return AVERROR(ENOSYS);
+    }
+
+    /* validate the dimensions */
+    ret = av_image_check_size(ctx->width, ctx->height, 0, ctx);
+    if (ret < 0)
+        return ret;
+
+    /* format-specific init */
+    if (ctx->internal->hw_type->frames_init) {
+        ret = ctx->internal->hw_type->frames_init(ctx);
+        if (ret < 0)
+            goto fail;
+    }
+
+    if (ctx->internal->pool_internal && !ctx->pool)
+        ctx->pool = ctx->internal->pool_internal;
+
+    /* preallocate the frames in the pool, if requested */
+    if (ctx->initial_pool_size > 0) {
+        ret = hwframe_pool_prealloc(ref);
+        if (ret < 0)
+            goto fail;
+    }
+
+    return 0;
+fail:
+    if (ctx->internal->hw_type->frames_uninit)
+        ctx->internal->hw_type->frames_uninit(ctx);
+    return ret;
+}
+
+int av_hwframe_transfer_get_formats(AVBufferRef *hwframe_ref,
+                                    enum AVHWFrameTransferDirection dir,
+                                    enum AVPixelFormat **formats, int flags)
+{
+    AVHWFramesContext *ctx = (AVHWFramesContext*)hwframe_ref->data;
+
+    if (!ctx->internal->hw_type->transfer_get_formats)
+        return AVERROR(ENOSYS);
+
+    return ctx->internal->hw_type->transfer_get_formats(ctx, dir, formats);
+}
+
+static int transfer_data_alloc(AVFrame *dst, const AVFrame *src, int flags)
+{
+    AVHWFramesContext *ctx = (AVHWFramesContext*)src->hw_frames_ctx->data;
+    AVFrame *frame_tmp;
+    int ret = 0;
+
+    frame_tmp = av_frame_alloc();
+    if (!frame_tmp)
+        return AVERROR(ENOMEM);
+
+    /* if the format is set, use that
+     * otherwise pick the first supported one */
+    if (dst->format >= 0) {
+        frame_tmp->format = dst->format;
+    } else {
+        enum AVPixelFormat *formats;
+
+        ret = av_hwframe_transfer_get_formats(src->hw_frames_ctx,
+                                              AV_HWFRAME_TRANSFER_DIRECTION_FROM,
+                                              &formats, 0);
+        if (ret < 0)
+            goto fail;
+        frame_tmp->format = formats[0];
+        av_freep(&formats);
+    }
+    frame_tmp->width  = ctx->width;
+    frame_tmp->height = ctx->height;
+
+    ret = av_frame_get_buffer(frame_tmp, 32);
+    if (ret < 0)
+        goto fail;
+
+    ret = av_hwframe_transfer_data(frame_tmp, src, flags);
+    if (ret < 0)
+        goto fail;
+
+    frame_tmp->width  = src->width;
+    frame_tmp->height = src->height;
+
+    av_frame_move_ref(dst, frame_tmp);
+
+fail:
+    av_frame_free(&frame_tmp);
+    return ret;
+}
+
+int av_hwframe_transfer_data(AVFrame *dst, const AVFrame *src, int flags)
+{
+    AVHWFramesContext *ctx;
+    int ret;
+
+    if (!dst->buf[0])
+        return transfer_data_alloc(dst, src, flags);
+
+    if (src->hw_frames_ctx) {
+        ctx = (AVHWFramesContext*)src->hw_frames_ctx->data;
+
+        ret = ctx->internal->hw_type->transfer_data_from(ctx, dst, src);
+        if (ret < 0)
+            return ret;
+    } else if (dst->hw_frames_ctx) {
+        ctx = (AVHWFramesContext*)dst->hw_frames_ctx->data;
+
+        ret = ctx->internal->hw_type->transfer_data_to(ctx, dst, src);
+        if (ret < 0)
+            return ret;
+    } else
+        return AVERROR(ENOSYS);
+
+    return 0;
+}
+
+int av_hwframe_get_buffer(AVBufferRef *hwframe_ref, AVFrame *frame, int flags)
+{
+    AVHWFramesContext *ctx = (AVHWFramesContext*)hwframe_ref->data;
+    int ret;
+
+    if (ctx->internal->source_frames) {
+        // This is a derived frame context, so we allocate in the source
+        // and map the frame immediately.
+        AVFrame *src_frame;
+
+        frame->format = ctx->format;
+        frame->hw_frames_ctx = av_buffer_ref(hwframe_ref);
+        if (!frame->hw_frames_ctx)
+            return AVERROR(ENOMEM);
+
+        src_frame = av_frame_alloc();
+        if (!src_frame)
+            return AVERROR(ENOMEM);
+
+        ret = av_hwframe_get_buffer(ctx->internal->source_frames,
+                                    src_frame, 0);
+        if (ret < 0) {
+            av_frame_free(&src_frame);
+            return ret;
+        }
+
+        ret = av_hwframe_map(frame, src_frame,
+                             ctx->internal->source_allocation_map_flags);
+        if (ret) {
+            av_log(ctx, AV_LOG_ERROR, "Failed to map frame into derived "
+                   "frame context: %d.\n", ret);
+            av_frame_free(&src_frame);
+            return ret;
+        }
+
+        // Free the source frame immediately - the mapped frame still
+        // contains a reference to it.
+        av_frame_free(&src_frame);
+
+        return 0;
+    }
+
+    if (!ctx->internal->hw_type->frames_get_buffer)
+        return AVERROR(ENOSYS);
+
+    if (!ctx->pool)
+        return AVERROR(EINVAL);
+
+    frame->hw_frames_ctx = av_buffer_ref(hwframe_ref);
+    if (!frame->hw_frames_ctx)
+        return AVERROR(ENOMEM);
+
+    ret = ctx->internal->hw_type->frames_get_buffer(ctx, frame);
+    if (ret < 0) {
+        av_buffer_unref(&frame->hw_frames_ctx);
+        return ret;
+    }
+
+    return 0;
+}
+
+void *av_hwdevice_hwconfig_alloc(AVBufferRef *ref)
+{
+    AVHWDeviceContext *ctx = (AVHWDeviceContext*)ref->data;
+    const HWContextType  *hw_type = ctx->internal->hw_type;
+
+    if (hw_type->device_hwconfig_size == 0)
+        return NULL;
+
+    return av_mallocz(hw_type->device_hwconfig_size);
+}
+
+AVHWFramesConstraints *av_hwdevice_get_hwframe_constraints(AVBufferRef *ref,
+                                                           const void *hwconfig)
+{
+    AVHWDeviceContext *ctx = (AVHWDeviceContext*)ref->data;
+    const HWContextType  *hw_type = ctx->internal->hw_type;
+    AVHWFramesConstraints *constraints;
+
+    if (!hw_type->frames_get_constraints)
+        return NULL;
+
+    constraints = av_mallocz(sizeof(*constraints));
+    if (!constraints)
+        return NULL;
+
+    constraints->min_width = constraints->min_height = 0;
+    constraints->max_width = constraints->max_height = INT_MAX;
+
+    if (hw_type->frames_get_constraints(ctx, hwconfig, constraints) >= 0) {
+        return constraints;
+    } else {
+        av_hwframe_constraints_free(&constraints);
+        return NULL;
+    }
+}
+
+void av_hwframe_constraints_free(AVHWFramesConstraints **constraints)
+{
+    if (*constraints) {
+        av_freep(&(*constraints)->valid_hw_formats);
+        av_freep(&(*constraints)->valid_sw_formats);
+    }
+    av_freep(constraints);
+}
+
+int av_hwdevice_ctx_create(AVBufferRef **pdevice_ref, enum AVHWDeviceType type,
+                           const char *device, AVDictionary *opts, int flags)
+{
+    AVBufferRef *device_ref = NULL;
+    AVHWDeviceContext *device_ctx;
+    int ret = 0;
+
+    device_ref = av_hwdevice_ctx_alloc(type);
+    if (!device_ref) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+    device_ctx = (AVHWDeviceContext*)device_ref->data;
+
+    if (!device_ctx->internal->hw_type->device_create) {
+        ret = AVERROR(ENOSYS);
+        goto fail;
+    }
+
+    ret = device_ctx->internal->hw_type->device_create(device_ctx, device,
+                                                       opts, flags);
+    if (ret < 0)
+        goto fail;
+
+    ret = av_hwdevice_ctx_init(device_ref);
+    if (ret < 0)
+        goto fail;
+
+    *pdevice_ref = device_ref;
+    return 0;
+fail:
+    av_buffer_unref(&device_ref);
+    *pdevice_ref = NULL;
+    return ret;
+}
+
+int av_hwdevice_ctx_create_derived(AVBufferRef **dst_ref_ptr,
+                                   enum AVHWDeviceType type,
+                                   AVBufferRef *src_ref, int flags)
+{
+    AVBufferRef *dst_ref = NULL, *tmp_ref;
+    AVHWDeviceContext *dst_ctx, *tmp_ctx;
+    int ret = 0;
+
+    tmp_ref = src_ref;
+    while (tmp_ref) {
+        tmp_ctx = (AVHWDeviceContext*)tmp_ref->data;
+        if (tmp_ctx->type == type) {
+            dst_ref = av_buffer_ref(tmp_ref);
+            if (!dst_ref) {
+                ret = AVERROR(ENOMEM);
+                goto fail;
+            }
+            goto done;
+        }
+        tmp_ref = tmp_ctx->internal->source_device;
+    }
+
+    dst_ref = av_hwdevice_ctx_alloc(type);
+    if (!dst_ref) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+    dst_ctx = (AVHWDeviceContext*)dst_ref->data;
+
+    tmp_ref = src_ref;
+    while (tmp_ref) {
+        tmp_ctx = (AVHWDeviceContext*)tmp_ref->data;
+        if (dst_ctx->internal->hw_type->device_derive) {
+            ret = dst_ctx->internal->hw_type->device_derive(dst_ctx,
+                                                            tmp_ctx,
+                                                            flags);
+            if (ret == 0) {
+                dst_ctx->internal->source_device = av_buffer_ref(src_ref);
+                if (!dst_ctx->internal->source_device) {
+                    ret = AVERROR(ENOMEM);
+                    goto fail;
+                }
+                ret = av_hwdevice_ctx_init(dst_ref);
+                if (ret < 0)
+                    goto fail;
+                goto done;
+            }
+            if (ret != AVERROR(ENOSYS))
+                goto fail;
+        }
+        tmp_ref = tmp_ctx->internal->source_device;
+    }
+
+    ret = AVERROR(ENOSYS);
+    goto fail;
+
+done:
+    *dst_ref_ptr = dst_ref;
+    return 0;
+
+fail:
+    av_buffer_unref(&dst_ref);
+    *dst_ref_ptr = NULL;
+    return ret;
+}
+
+static void ff_hwframe_unmap(void *opaque, uint8_t *data)
+{
+    HWMapDescriptor *hwmap = (HWMapDescriptor*)data;
+    AVHWFramesContext *ctx = opaque;
+
+    if (hwmap->unmap)
+        hwmap->unmap(ctx, hwmap);
+
+    av_frame_free(&hwmap->source);
+
+    av_buffer_unref(&hwmap->hw_frames_ctx);
+
+    av_free(hwmap);
+}
+
+int ff_hwframe_map_create(AVBufferRef *hwframe_ref,
+                          AVFrame *dst, const AVFrame *src,
+                          void (*unmap)(AVHWFramesContext *ctx,
+                                        HWMapDescriptor *hwmap),
+                          void *priv)
+{
+    AVHWFramesContext *ctx = (AVHWFramesContext*)hwframe_ref->data;
+    HWMapDescriptor *hwmap;
+    int ret;
+
+    hwmap = av_mallocz(sizeof(*hwmap));
+    if (!hwmap) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    hwmap->source = av_frame_alloc();
+    if (!hwmap->source) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+    ret = av_frame_ref(hwmap->source, src);
+    if (ret < 0)
+        goto fail;
+
+    hwmap->hw_frames_ctx = av_buffer_ref(hwframe_ref);
+    if (!hwmap->hw_frames_ctx) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    hwmap->unmap = unmap;
+    hwmap->priv  = priv;
+
+    dst->buf[0] = av_buffer_create((uint8_t*)hwmap, sizeof(*hwmap),
+                                   &ff_hwframe_unmap, ctx, 0);
+    if (!dst->buf[0]) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    return 0;
+
+fail:
+    if (hwmap) {
+        av_buffer_unref(&hwmap->hw_frames_ctx);
+        av_frame_free(&hwmap->source);
+    }
+    av_free(hwmap);
+    return ret;
+}
+
+int av_hwframe_map(AVFrame *dst, const AVFrame *src, int flags)
+{
+    AVHWFramesContext *src_frames, *dst_frames;
+    HWMapDescriptor *hwmap;
+    int ret;
+
+    if (src->hw_frames_ctx && dst->hw_frames_ctx) {
+        src_frames = (AVHWFramesContext*)src->hw_frames_ctx->data;
+        dst_frames = (AVHWFramesContext*)dst->hw_frames_ctx->data;
+
+        if ((src_frames == dst_frames &&
+             src->format == dst_frames->sw_format &&
+             dst->format == dst_frames->format) ||
+            (src_frames->internal->source_frames &&
+             src_frames->internal->source_frames->data ==
+             (uint8_t*)dst_frames)) {
+            // This is an unmap operation.  We don't need to directly
+            // do anything here other than fill in the original frame,
+            // because the real unmap will be invoked when the last
+            // reference to the mapped frame disappears.
+            if (!src->buf[0]) {
+                av_log(src_frames, AV_LOG_ERROR, "Invalid mapping "
+                       "found when attempting unmap.\n");
+                return AVERROR(EINVAL);
+            }
+            hwmap = (HWMapDescriptor*)src->buf[0]->data;
+            av_frame_unref(dst);
+            return av_frame_ref(dst, hwmap->source);
+        }
+    }
+
+    if (src->hw_frames_ctx) {
+        src_frames = (AVHWFramesContext*)src->hw_frames_ctx->data;
+
+        if (src_frames->format == src->format &&
+            src_frames->internal->hw_type->map_from) {
+            ret = src_frames->internal->hw_type->map_from(src_frames,
+                                                          dst, src, flags);
+            if (ret != AVERROR(ENOSYS))
+                return ret;
+        }
+    }
+
+    if (dst->hw_frames_ctx) {
+        dst_frames = (AVHWFramesContext*)dst->hw_frames_ctx->data;
+
+        if (dst_frames->format == dst->format &&
+            dst_frames->internal->hw_type->map_to) {
+            ret = dst_frames->internal->hw_type->map_to(dst_frames,
+                                                        dst, src, flags);
+            if (ret != AVERROR(ENOSYS))
+                return ret;
+        }
+    }
+
+    return AVERROR(ENOSYS);
+}
+
+int av_hwframe_ctx_create_derived(AVBufferRef **derived_frame_ctx,
+                                  enum AVPixelFormat format,
+                                  AVBufferRef *derived_device_ctx,
+                                  AVBufferRef *source_frame_ctx,
+                                  int flags)
+{
+    AVBufferRef   *dst_ref = NULL;
+    AVHWFramesContext *dst = NULL;
+    AVHWFramesContext *src = (AVHWFramesContext*)source_frame_ctx->data;
+    int ret;
+
+    if (src->internal->source_frames) {
+        AVHWFramesContext *src_src =
+            (AVHWFramesContext*)src->internal->source_frames->data;
+        AVHWDeviceContext *dst_dev =
+            (AVHWDeviceContext*)derived_device_ctx->data;
+
+        if (src_src->device_ctx == dst_dev) {
+            // This is actually an unmapping, so we just return a
+            // reference to the source frame context.
+            *derived_frame_ctx =
+                av_buffer_ref(src->internal->source_frames);
+            if (!*derived_frame_ctx) {
+                ret = AVERROR(ENOMEM);
+                goto fail;
+            }
+            return 0;
+        }
+    }
+
+    dst_ref = av_hwframe_ctx_alloc(derived_device_ctx);
+    if (!dst_ref) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    dst = (AVHWFramesContext*)dst_ref->data;
+
+    dst->format    = format;
+    dst->sw_format = src->sw_format;
+    dst->width     = src->width;
+    dst->height    = src->height;
+
+    dst->internal->source_frames = av_buffer_ref(source_frame_ctx);
+    if (!dst->internal->source_frames) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    dst->internal->source_allocation_map_flags =
+        flags & (AV_HWFRAME_MAP_READ      |
+                 AV_HWFRAME_MAP_WRITE     |
+                 AV_HWFRAME_MAP_OVERWRITE |
+                 AV_HWFRAME_MAP_DIRECT);
+
+    ret = AVERROR(ENOSYS);
+    if (src->internal->hw_type->frames_derive_from)
+        ret = src->internal->hw_type->frames_derive_from(dst, src, flags);
+    if (ret == AVERROR(ENOSYS) &&
+        dst->internal->hw_type->frames_derive_to)
+        ret = dst->internal->hw_type->frames_derive_to(dst, src, flags);
+    if (ret == AVERROR(ENOSYS))
+        ret = 0;
+    if (ret)
+        goto fail;
+
+    *derived_frame_ctx = dst_ref;
+    return 0;
+
+fail:
+    if (dst)
+        av_buffer_unref(&dst->internal->source_frames);
+    av_buffer_unref(&dst_ref);
+    return ret;
+}
+
+int ff_hwframe_map_replace(AVFrame *dst, const AVFrame *src)
+{
+    HWMapDescriptor *hwmap = (HWMapDescriptor*)dst->buf[0]->data;
+    av_frame_unref(hwmap->source);
+    return av_frame_ref(hwmap->source, src);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext.h
new file mode 100644
index 000000000..f5a4b6238
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext.h
@@ -0,0 +1,584 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HWCONTEXT_H
+#define AVUTIL_HWCONTEXT_H
+
+#include "buffer.h"
+#include "frame.h"
+#include "log.h"
+#include "pixfmt.h"
+
+enum AVHWDeviceType {
+    AV_HWDEVICE_TYPE_NONE,
+    AV_HWDEVICE_TYPE_VDPAU,
+    AV_HWDEVICE_TYPE_CUDA,
+    AV_HWDEVICE_TYPE_VAAPI,
+    AV_HWDEVICE_TYPE_DXVA2,
+    AV_HWDEVICE_TYPE_QSV,
+    AV_HWDEVICE_TYPE_VIDEOTOOLBOX,
+    AV_HWDEVICE_TYPE_D3D11VA,
+    AV_HWDEVICE_TYPE_DRM,
+    AV_HWDEVICE_TYPE_OPENCL,
+    AV_HWDEVICE_TYPE_MEDIACODEC,
+};
+
+typedef struct AVHWDeviceInternal AVHWDeviceInternal;
+
+/**
+ * This struct aggregates all the (hardware/vendor-specific) "high-level" state,
+ * i.e. state that is not tied to a concrete processing configuration.
+ * E.g., in an API that supports hardware-accelerated encoding and decoding,
+ * this struct will (if possible) wrap the state that is common to both encoding
+ * and decoding and from which specific instances of encoders or decoders can be
+ * derived.
+ *
+ * This struct is reference-counted with the AVBuffer mechanism. The
+ * av_hwdevice_ctx_alloc() constructor yields a reference, whose data field
+ * points to the actual AVHWDeviceContext. Further objects derived from
+ * AVHWDeviceContext (such as AVHWFramesContext, describing a frame pool with
+ * specific properties) will hold an internal reference to it. After all the
+ * references are released, the AVHWDeviceContext itself will be freed,
+ * optionally invoking a user-specified callback for uninitializing the hardware
+ * state.
+ */
+typedef struct AVHWDeviceContext {
+    /**
+     * A class for logging. Set by av_hwdevice_ctx_alloc().
+     */
+    const AVClass *av_class;
+
+    /**
+     * Private data used internally by libavutil. Must not be accessed in any
+     * way by the caller.
+     */
+    AVHWDeviceInternal *internal;
+
+    /**
+     * This field identifies the underlying API used for hardware access.
+     *
+     * This field is set when this struct is allocated and never changed
+     * afterwards.
+     */
+    enum AVHWDeviceType type;
+
+    /**
+     * The format-specific data, allocated and freed by libavutil along with
+     * this context.
+     *
+     * Should be cast by the user to the format-specific context defined in the
+     * corresponding header (hwcontext_*.h) and filled as described in the
+     * documentation before calling av_hwdevice_ctx_init().
+     *
+     * After calling av_hwdevice_ctx_init() this struct should not be modified
+     * by the caller.
+     */
+    void *hwctx;
+
+    /**
+     * This field may be set by the caller before calling av_hwdevice_ctx_init().
+     *
+     * If non-NULL, this callback will be called when the last reference to
+     * this context is unreferenced, immediately before it is freed.
+     *
+     * @note when other objects (e.g an AVHWFramesContext) are derived from this
+     *       struct, this callback will be invoked after all such child objects
+     *       are fully uninitialized and their respective destructors invoked.
+     */
+    void (*free)(struct AVHWDeviceContext *ctx);
+
+    /**
+     * Arbitrary user data, to be used e.g. by the free() callback.
+     */
+    void *user_opaque;
+} AVHWDeviceContext;
+
+typedef struct AVHWFramesInternal AVHWFramesInternal;
+
+/**
+ * This struct describes a set or pool of "hardware" frames (i.e. those with
+ * data not located in normal system memory). All the frames in the pool are
+ * assumed to be allocated in the same way and interchangeable.
+ *
+ * This struct is reference-counted with the AVBuffer mechanism and tied to a
+ * given AVHWDeviceContext instance. The av_hwframe_ctx_alloc() constructor
+ * yields a reference, whose data field points to the actual AVHWFramesContext
+ * struct.
+ */
+typedef struct AVHWFramesContext {
+    /**
+     * A class for logging.
+     */
+    const AVClass *av_class;
+
+    /**
+     * Private data used internally by libavutil. Must not be accessed in any
+     * way by the caller.
+     */
+    AVHWFramesInternal *internal;
+
+    /**
+     * A reference to the parent AVHWDeviceContext. This reference is owned and
+     * managed by the enclosing AVHWFramesContext, but the caller may derive
+     * additional references from it.
+     */
+    AVBufferRef *device_ref;
+
+    /**
+     * The parent AVHWDeviceContext. This is simply a pointer to
+     * device_ref->data provided for convenience.
+     *
+     * Set by libavutil in av_hwframe_ctx_init().
+     */
+    AVHWDeviceContext *device_ctx;
+
+    /**
+     * The format-specific data, allocated and freed automatically along with
+     * this context.
+     *
+     * Should be cast by the user to the format-specific context defined in the
+     * corresponding header (hwframe_*.h) and filled as described in the
+     * documentation before calling av_hwframe_ctx_init().
+     *
+     * After any frames using this context are created, the contents of this
+     * struct should not be modified by the caller.
+     */
+    void *hwctx;
+
+    /**
+     * This field may be set by the caller before calling av_hwframe_ctx_init().
+     *
+     * If non-NULL, this callback will be called when the last reference to
+     * this context is unreferenced, immediately before it is freed.
+     */
+    void (*free)(struct AVHWFramesContext *ctx);
+
+    /**
+     * Arbitrary user data, to be used e.g. by the free() callback.
+     */
+    void *user_opaque;
+
+    /**
+     * A pool from which the frames are allocated by av_hwframe_get_buffer().
+     * This field may be set by the caller before calling av_hwframe_ctx_init().
+     * The buffers returned by calling av_buffer_pool_get() on this pool must
+     * have the properties described in the documentation in the corresponding hw
+     * type's header (hwcontext_*.h). The pool will be freed strictly before
+     * this struct's free() callback is invoked.
+     *
+     * This field may be NULL, then libavutil will attempt to allocate a pool
+     * internally. Note that certain device types enforce pools allocated at
+     * fixed size (frame count), which cannot be extended dynamically. In such a
+     * case, initial_pool_size must be set appropriately.
+     */
+    AVBufferPool *pool;
+
+    /**
+     * Initial size of the frame pool. If a device type does not support
+     * dynamically resizing the pool, then this is also the maximum pool size.
+     *
+     * May be set by the caller before calling av_hwframe_ctx_init(). Must be
+     * set if pool is NULL and the device type does not support dynamic pools.
+     */
+    int initial_pool_size;
+
+    /**
+     * The pixel format identifying the underlying HW surface type.
+     *
+     * Must be a hwaccel format, i.e. the corresponding descriptor must have the
+     * AV_PIX_FMT_FLAG_HWACCEL flag set.
+     *
+     * Must be set by the user before calling av_hwframe_ctx_init().
+     */
+    enum AVPixelFormat format;
+
+    /**
+     * The pixel format identifying the actual data layout of the hardware
+     * frames.
+     *
+     * Must be set by the caller before calling av_hwframe_ctx_init().
+     *
+     * @note when the underlying API does not provide the exact data layout, but
+     * only the colorspace/bit depth, this field should be set to the fully
+     * planar version of that format (e.g. for 8-bit 420 YUV it should be
+     * AV_PIX_FMT_YUV420P, not AV_PIX_FMT_NV12 or anything else).
+     */
+    enum AVPixelFormat sw_format;
+
+    /**
+     * The allocated dimensions of the frames in this pool.
+     *
+     * Must be set by the user before calling av_hwframe_ctx_init().
+     */
+    int width, height;
+} AVHWFramesContext;
+
+/**
+ * Look up an AVHWDeviceType by name.
+ *
+ * @param name String name of the device type (case-insensitive).
+ * @return The type from enum AVHWDeviceType, or AV_HWDEVICE_TYPE_NONE if
+ *         not found.
+ */
+enum AVHWDeviceType av_hwdevice_find_type_by_name(const char *name);
+
+/** Get the string name of an AVHWDeviceType.
+ *
+ * @param type Type from enum AVHWDeviceType.
+ * @return Pointer to a static string containing the name, or NULL if the type
+ *         is not valid.
+ */
+const char *av_hwdevice_get_type_name(enum AVHWDeviceType type);
+
+/**
+ * Iterate over supported device types.
+ *
+ * @param type AV_HWDEVICE_TYPE_NONE initially, then the previous type
+ *             returned by this function in subsequent iterations.
+ * @return The next usable device type from enum AVHWDeviceType, or
+ *         AV_HWDEVICE_TYPE_NONE if there are no more.
+ */
+enum AVHWDeviceType av_hwdevice_iterate_types(enum AVHWDeviceType prev);
+
+/**
+ * Allocate an AVHWDeviceContext for a given hardware type.
+ *
+ * @param type the type of the hardware device to allocate.
+ * @return a reference to the newly created AVHWDeviceContext on success or NULL
+ *         on failure.
+ */
+AVBufferRef *av_hwdevice_ctx_alloc(enum AVHWDeviceType type);
+
+/**
+ * Finalize the device context before use. This function must be called after
+ * the context is filled with all the required information and before it is
+ * used in any way.
+ *
+ * @param ref a reference to the AVHWDeviceContext
+ * @return 0 on success, a negative AVERROR code on failure
+ */
+int av_hwdevice_ctx_init(AVBufferRef *ref);
+
+/**
+ * Open a device of the specified type and create an AVHWDeviceContext for it.
+ *
+ * This is a convenience function intended to cover the simple cases. Callers
+ * who need to fine-tune device creation/management should open the device
+ * manually and then wrap it in an AVHWDeviceContext using
+ * av_hwdevice_ctx_alloc()/av_hwdevice_ctx_init().
+ *
+ * The returned context is already initialized and ready for use, the caller
+ * should not call av_hwdevice_ctx_init() on it. The user_opaque/free fields of
+ * the created AVHWDeviceContext are set by this function and should not be
+ * touched by the caller.
+ *
+ * @param device_ctx On success, a reference to the newly-created device context
+ *                   will be written here. The reference is owned by the caller
+ *                   and must be released with av_buffer_unref() when no longer
+ *                   needed. On failure, NULL will be written to this pointer.
+ * @param type The type of the device to create.
+ * @param device A type-specific string identifying the device to open.
+ * @param opts A dictionary of additional (type-specific) options to use in
+ *             opening the device. The dictionary remains owned by the caller.
+ * @param flags currently unused
+ *
+ * @return 0 on success, a negative AVERROR code on failure.
+ */
+int av_hwdevice_ctx_create(AVBufferRef **device_ctx, enum AVHWDeviceType type,
+                           const char *device, AVDictionary *opts, int flags);
+
+/**
+ * Create a new device of the specified type from an existing device.
+ *
+ * If the source device is a device of the target type or was originally
+ * derived from such a device (possibly through one or more intermediate
+ * devices of other types), then this will return a reference to the
+ * existing device of the same type as is requested.
+ *
+ * Otherwise, it will attempt to derive a new device from the given source
+ * device.  If direct derivation to the new type is not implemented, it will
+ * attempt the same derivation from each ancestor of the source device in
+ * turn looking for an implemented derivation method.
+ *
+ * @param dst_ctx On success, a reference to the newly-created
+ *                AVHWDeviceContext.
+ * @param type    The type of the new device to create.
+ * @param src_ctx A reference to an existing AVHWDeviceContext which will be
+ *                used to create the new device.
+ * @param flags   Currently unused; should be set to zero.
+ * @return        Zero on success, a negative AVERROR code on failure.
+ */
+int av_hwdevice_ctx_create_derived(AVBufferRef **dst_ctx,
+                                   enum AVHWDeviceType type,
+                                   AVBufferRef *src_ctx, int flags);
+
+
+/**
+ * Allocate an AVHWFramesContext tied to a given device context.
+ *
+ * @param device_ctx a reference to a AVHWDeviceContext. This function will make
+ *                   a new reference for internal use, the one passed to the
+ *                   function remains owned by the caller.
+ * @return a reference to the newly created AVHWFramesContext on success or NULL
+ *         on failure.
+ */
+AVBufferRef *av_hwframe_ctx_alloc(AVBufferRef *device_ctx);
+
+/**
+ * Finalize the context before use. This function must be called after the
+ * context is filled with all the required information and before it is attached
+ * to any frames.
+ *
+ * @param ref a reference to the AVHWFramesContext
+ * @return 0 on success, a negative AVERROR code on failure
+ */
+int av_hwframe_ctx_init(AVBufferRef *ref);
+
+/**
+ * Allocate a new frame attached to the given AVHWFramesContext.
+ *
+ * @param hwframe_ctx a reference to an AVHWFramesContext
+ * @param frame an empty (freshly allocated or unreffed) frame to be filled with
+ *              newly allocated buffers.
+ * @param flags currently unused, should be set to zero
+ * @return 0 on success, a negative AVERROR code on failure
+ */
+int av_hwframe_get_buffer(AVBufferRef *hwframe_ctx, AVFrame *frame, int flags);
+
+/**
+ * Copy data to or from a hw surface. At least one of dst/src must have an
+ * AVHWFramesContext attached.
+ *
+ * If src has an AVHWFramesContext attached, then the format of dst (if set)
+ * must use one of the formats returned by av_hwframe_transfer_get_formats(src,
+ * AV_HWFRAME_TRANSFER_DIRECTION_FROM).
+ * If dst has an AVHWFramesContext attached, then the format of src must use one
+ * of the formats returned by av_hwframe_transfer_get_formats(dst,
+ * AV_HWFRAME_TRANSFER_DIRECTION_TO)
+ *
+ * dst may be "clean" (i.e. with data/buf pointers unset), in which case the
+ * data buffers will be allocated by this function using av_frame_get_buffer().
+ * If dst->format is set, then this format will be used, otherwise (when
+ * dst->format is AV_PIX_FMT_NONE) the first acceptable format will be chosen.
+ *
+ * The two frames must have matching allocated dimensions (i.e. equal to
+ * AVHWFramesContext.width/height), since not all device types support
+ * transferring a sub-rectangle of the whole surface. The display dimensions
+ * (i.e. AVFrame.width/height) may be smaller than the allocated dimensions, but
+ * also have to be equal for both frames. When the display dimensions are
+ * smaller than the allocated dimensions, the content of the padding in the
+ * destination frame is unspecified.
+ *
+ * @param dst the destination frame. dst is not touched on failure.
+ * @param src the source frame.
+ * @param flags currently unused, should be set to zero
+ * @return 0 on success, a negative AVERROR error code on failure.
+ */
+int av_hwframe_transfer_data(AVFrame *dst, const AVFrame *src, int flags);
+
+enum AVHWFrameTransferDirection {
+    /**
+     * Transfer the data from the queried hw frame.
+     */
+    AV_HWFRAME_TRANSFER_DIRECTION_FROM,
+
+    /**
+     * Transfer the data to the queried hw frame.
+     */
+    AV_HWFRAME_TRANSFER_DIRECTION_TO,
+};
+
+/**
+ * Get a list of possible source or target formats usable in
+ * av_hwframe_transfer_data().
+ *
+ * @param hwframe_ctx the frame context to obtain the information for
+ * @param dir the direction of the transfer
+ * @param formats the pointer to the output format list will be written here.
+ *                The list is terminated with AV_PIX_FMT_NONE and must be freed
+ *                by the caller when no longer needed using av_free().
+ *                If this function returns successfully, the format list will
+ *                have at least one item (not counting the terminator).
+ *                On failure, the contents of this pointer are unspecified.
+ * @param flags currently unused, should be set to zero
+ * @return 0 on success, a negative AVERROR code on failure.
+ */
+int av_hwframe_transfer_get_formats(AVBufferRef *hwframe_ctx,
+                                    enum AVHWFrameTransferDirection dir,
+                                    enum AVPixelFormat **formats, int flags);
+
+
+/**
+ * This struct describes the constraints on hardware frames attached to
+ * a given device with a hardware-specific configuration.  This is returned
+ * by av_hwdevice_get_hwframe_constraints() and must be freed by
+ * av_hwframe_constraints_free() after use.
+ */
+typedef struct AVHWFramesConstraints {
+    /**
+     * A list of possible values for format in the hw_frames_ctx,
+     * terminated by AV_PIX_FMT_NONE.  This member will always be filled.
+     */
+    enum AVPixelFormat *valid_hw_formats;
+
+    /**
+     * A list of possible values for sw_format in the hw_frames_ctx,
+     * terminated by AV_PIX_FMT_NONE.  Can be NULL if this information is
+     * not known.
+     */
+    enum AVPixelFormat *valid_sw_formats;
+
+    /**
+     * The minimum size of frames in this hw_frames_ctx.
+     * (Zero if not known.)
+     */
+    int min_width;
+    int min_height;
+
+    /**
+     * The maximum size of frames in this hw_frames_ctx.
+     * (INT_MAX if not known / no limit.)
+     */
+    int max_width;
+    int max_height;
+} AVHWFramesConstraints;
+
+/**
+ * Allocate a HW-specific configuration structure for a given HW device.
+ * After use, the user must free all members as required by the specific
+ * hardware structure being used, then free the structure itself with
+ * av_free().
+ *
+ * @param device_ctx a reference to the associated AVHWDeviceContext.
+ * @return The newly created HW-specific configuration structure on
+ *         success or NULL on failure.
+ */
+void *av_hwdevice_hwconfig_alloc(AVBufferRef *device_ctx);
+
+/**
+ * Get the constraints on HW frames given a device and the HW-specific
+ * configuration to be used with that device.  If no HW-specific
+ * configuration is provided, returns the maximum possible capabilities
+ * of the device.
+ *
+ * @param ref a reference to the associated AVHWDeviceContext.
+ * @param hwconfig a filled HW-specific configuration structure, or NULL
+ *        to return the maximum possible capabilities of the device.
+ * @return AVHWFramesConstraints structure describing the constraints
+ *         on the device, or NULL if not available.
+ */
+AVHWFramesConstraints *av_hwdevice_get_hwframe_constraints(AVBufferRef *ref,
+                                                           const void *hwconfig);
+
+/**
+ * Free an AVHWFrameConstraints structure.
+ *
+ * @param constraints The (filled or unfilled) AVHWFrameConstraints structure.
+ */
+void av_hwframe_constraints_free(AVHWFramesConstraints **constraints);
+
+
+/**
+ * Flags to apply to frame mappings.
+ */
+enum {
+    /**
+     * The mapping must be readable.
+     */
+    AV_HWFRAME_MAP_READ      = 1 << 0,
+    /**
+     * The mapping must be writeable.
+     */
+    AV_HWFRAME_MAP_WRITE     = 1 << 1,
+    /**
+     * The mapped frame will be overwritten completely in subsequent
+     * operations, so the current frame data need not be loaded.  Any values
+     * which are not overwritten are unspecified.
+     */
+    AV_HWFRAME_MAP_OVERWRITE = 1 << 2,
+    /**
+     * The mapping must be direct.  That is, there must not be any copying in
+     * the map or unmap steps.  Note that performance of direct mappings may
+     * be much lower than normal memory.
+     */
+    AV_HWFRAME_MAP_DIRECT    = 1 << 3,
+};
+
+/**
+ * Map a hardware frame.
+ *
+ * This has a number of different possible effects, depending on the format
+ * and origin of the src and dst frames.  On input, src should be a usable
+ * frame with valid buffers and dst should be blank (typically as just created
+ * by av_frame_alloc()).  src should have an associated hwframe context, and
+ * dst may optionally have a format and associated hwframe context.
+ *
+ * If src was created by mapping a frame from the hwframe context of dst,
+ * then this function undoes the mapping - dst is replaced by a reference to
+ * the frame that src was originally mapped from.
+ *
+ * If both src and dst have an associated hwframe context, then this function
+ * attempts to map the src frame from its hardware context to that of dst and
+ * then fill dst with appropriate data to be usable there.  This will only be
+ * possible if the hwframe contexts and associated devices are compatible -
+ * given compatible devices, av_hwframe_ctx_create_derived() can be used to
+ * create a hwframe context for dst in which mapping should be possible.
+ *
+ * If src has a hwframe context but dst does not, then the src frame is
+ * mapped to normal memory and should thereafter be usable as a normal frame.
+ * If the format is set on dst, then the mapping will attempt to create dst
+ * with that format and fail if it is not possible.  If format is unset (is
+ * AV_PIX_FMT_NONE) then dst will be mapped with whatever the most appropriate
+ * format to use is (probably the sw_format of the src hwframe context).
+ *
+ * A return value of AVERROR(ENOSYS) indicates that the mapping is not
+ * possible with the given arguments and hwframe setup, while other return
+ * values indicate that it failed somehow.
+ *
+ * @param dst Destination frame, to contain the mapping.
+ * @param src Source frame, to be mapped.
+ * @param flags Some combination of AV_HWFRAME_MAP_* flags.
+ * @return Zero on success, negative AVERROR code on failure.
+ */
+int av_hwframe_map(AVFrame *dst, const AVFrame *src, int flags);
+
+
+/**
+ * Create and initialise an AVHWFramesContext as a mapping of another existing
+ * AVHWFramesContext on a different device.
+ *
+ * av_hwframe_ctx_init() should not be called after this.
+ *
+ * @param derived_frame_ctx  On success, a reference to the newly created
+ *                           AVHWFramesContext.
+ * @param derived_device_ctx A reference to the device to create the new
+ *                           AVHWFramesContext on.
+ * @param source_frame_ctx   A reference to an existing AVHWFramesContext
+ *                           which will be mapped to the derived context.
+ * @param flags  Some combination of AV_HWFRAME_MAP_* flags, defining the
+ *               mapping parameters to apply to frames which are allocated
+ *               in the derived device.
+ * @return       Zero on success, negative AVERROR code on failure.
+ */
+int av_hwframe_ctx_create_derived(AVBufferRef **derived_frame_ctx,
+                                  enum AVPixelFormat format,
+                                  AVBufferRef *derived_device_ctx,
+                                  AVBufferRef *source_frame_ctx,
+                                  int flags);
+
+#endif /* AVUTIL_HWCONTEXT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_cuda.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_cuda.c
new file mode 100644
index 000000000..cca39e9fc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_cuda.c
@@ -0,0 +1,381 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "buffer.h"
+#include "common.h"
+#include "hwcontext.h"
+#include "hwcontext_internal.h"
+#include "hwcontext_cuda_internal.h"
+#include "cuda_check.h"
+#include "mem.h"
+#include "pixdesc.h"
+#include "pixfmt.h"
+#include "imgutils.h"
+
+#define CUDA_FRAME_ALIGNMENT 256
+
+typedef struct CUDAFramesContext {
+    int shift_width, shift_height;
+} CUDAFramesContext;
+
+static const enum AVPixelFormat supported_formats[] = {
+    AV_PIX_FMT_NV12,
+    AV_PIX_FMT_YUV420P,
+    AV_PIX_FMT_YUV444P,
+    AV_PIX_FMT_P010,
+    AV_PIX_FMT_P016,
+    AV_PIX_FMT_YUV444P16,
+    AV_PIX_FMT_0RGB32,
+    AV_PIX_FMT_0BGR32,
+};
+
+#define CHECK_CU(x) FF_CUDA_CHECK_DL(device_ctx, cu, x)
+
+static int cuda_frames_get_constraints(AVHWDeviceContext *ctx,
+                                       const void *hwconfig,
+                                       AVHWFramesConstraints *constraints)
+{
+    int i;
+
+    constraints->valid_sw_formats = av_malloc_array(FF_ARRAY_ELEMS(supported_formats) + 1,
+                                                    sizeof(*constraints->valid_sw_formats));
+    if (!constraints->valid_sw_formats)
+        return AVERROR(ENOMEM);
+
+    for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++)
+        constraints->valid_sw_formats[i] = supported_formats[i];
+    constraints->valid_sw_formats[FF_ARRAY_ELEMS(supported_formats)] = AV_PIX_FMT_NONE;
+
+    constraints->valid_hw_formats = av_malloc_array(2, sizeof(*constraints->valid_hw_formats));
+    if (!constraints->valid_hw_formats)
+        return AVERROR(ENOMEM);
+
+    constraints->valid_hw_formats[0] = AV_PIX_FMT_CUDA;
+    constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE;
+
+    return 0;
+}
+
+static void cuda_buffer_free(void *opaque, uint8_t *data)
+{
+    AVHWFramesContext        *ctx = opaque;
+    AVHWDeviceContext *device_ctx = ctx->device_ctx;
+    AVCUDADeviceContext    *hwctx = device_ctx->hwctx;
+    CudaFunctions             *cu = hwctx->internal->cuda_dl;
+
+    CUcontext dummy;
+
+    CHECK_CU(cu->cuCtxPushCurrent(hwctx->cuda_ctx));
+
+    CHECK_CU(cu->cuMemFree((CUdeviceptr)data));
+
+    CHECK_CU(cu->cuCtxPopCurrent(&dummy));
+}
+
+static AVBufferRef *cuda_pool_alloc(void *opaque, int size)
+{
+    AVHWFramesContext        *ctx = opaque;
+    AVHWDeviceContext *device_ctx = ctx->device_ctx;
+    AVCUDADeviceContext    *hwctx = device_ctx->hwctx;
+    CudaFunctions             *cu = hwctx->internal->cuda_dl;
+
+    AVBufferRef *ret = NULL;
+    CUcontext dummy = NULL;
+    CUdeviceptr data;
+    int err;
+
+    err = CHECK_CU(cu->cuCtxPushCurrent(hwctx->cuda_ctx));
+    if (err < 0)
+        return NULL;
+
+    err = CHECK_CU(cu->cuMemAlloc(&data, size));
+    if (err < 0)
+        goto fail;
+
+    ret = av_buffer_create((uint8_t*)data, size, cuda_buffer_free, ctx, 0);
+    if (!ret) {
+        CHECK_CU(cu->cuMemFree(data));
+        goto fail;
+    }
+
+fail:
+    CHECK_CU(cu->cuCtxPopCurrent(&dummy));
+    return ret;
+}
+
+static int cuda_frames_init(AVHWFramesContext *ctx)
+{
+    CUDAFramesContext *priv = ctx->internal->priv;
+    int i;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
+        if (ctx->sw_format == supported_formats[i])
+            break;
+    }
+    if (i == FF_ARRAY_ELEMS(supported_formats)) {
+        av_log(ctx, AV_LOG_ERROR, "Pixel format '%s' is not supported\n",
+               av_get_pix_fmt_name(ctx->sw_format));
+        return AVERROR(ENOSYS);
+    }
+
+    av_pix_fmt_get_chroma_sub_sample(ctx->sw_format, &priv->shift_width, &priv->shift_height);
+
+    if (!ctx->pool) {
+        int size = av_image_get_buffer_size(ctx->sw_format, ctx->width, ctx->height, CUDA_FRAME_ALIGNMENT);
+        if (size < 0)
+            return size;
+
+        ctx->internal->pool_internal = av_buffer_pool_init2(size, ctx, cuda_pool_alloc, NULL);
+        if (!ctx->internal->pool_internal)
+            return AVERROR(ENOMEM);
+    }
+
+    return 0;
+}
+
+static int cuda_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
+{
+    int res;
+
+    frame->buf[0] = av_buffer_pool_get(ctx->pool);
+    if (!frame->buf[0])
+        return AVERROR(ENOMEM);
+
+    res = av_image_fill_arrays(frame->data, frame->linesize, frame->buf[0]->data,
+                               ctx->sw_format, ctx->width, ctx->height, CUDA_FRAME_ALIGNMENT);
+    if (res < 0)
+        return res;
+
+    // YUV420P is a special case.
+    // Nvenc expects the U/V planes in swapped order from how ffmpeg expects them, also chroma is half-aligned
+    if (ctx->sw_format == AV_PIX_FMT_YUV420P) {
+        frame->linesize[1] = frame->linesize[2] = frame->linesize[0] / 2;
+        frame->data[2]     = frame->data[1];
+        frame->data[1]     = frame->data[2] + frame->linesize[2] * ctx->height / 2;
+    }
+
+    frame->format = AV_PIX_FMT_CUDA;
+    frame->width  = ctx->width;
+    frame->height = ctx->height;
+
+    return 0;
+}
+
+static int cuda_transfer_get_formats(AVHWFramesContext *ctx,
+                                     enum AVHWFrameTransferDirection dir,
+                                     enum AVPixelFormat **formats)
+{
+    enum AVPixelFormat *fmts;
+
+    fmts = av_malloc_array(2, sizeof(*fmts));
+    if (!fmts)
+        return AVERROR(ENOMEM);
+
+    fmts[0] = ctx->sw_format;
+    fmts[1] = AV_PIX_FMT_NONE;
+
+    *formats = fmts;
+
+    return 0;
+}
+
+static int cuda_transfer_data_from(AVHWFramesContext *ctx, AVFrame *dst,
+                                   const AVFrame *src)
+{
+    CUDAFramesContext       *priv = ctx->internal->priv;
+    AVHWDeviceContext *device_ctx = ctx->device_ctx;
+    AVCUDADeviceContext    *hwctx = device_ctx->hwctx;
+    CudaFunctions             *cu = hwctx->internal->cuda_dl;
+
+    CUcontext dummy;
+    int i, ret;
+
+    ret = CHECK_CU(cu->cuCtxPushCurrent(hwctx->cuda_ctx));
+    if (ret < 0)
+        return ret;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(src->data) && src->data[i]; i++) {
+        CUDA_MEMCPY2D cpy = {
+            .srcMemoryType = CU_MEMORYTYPE_DEVICE,
+            .dstMemoryType = CU_MEMORYTYPE_HOST,
+            .srcDevice     = (CUdeviceptr)src->data[i],
+            .dstHost       = dst->data[i],
+            .srcPitch      = src->linesize[i],
+            .dstPitch      = dst->linesize[i],
+            .WidthInBytes  = FFMIN(src->linesize[i], dst->linesize[i]),
+            .Height        = src->height >> (i ? priv->shift_height : 0),
+        };
+
+        ret = CHECK_CU(cu->cuMemcpy2DAsync(&cpy, hwctx->stream));
+        if (ret < 0)
+            goto exit;
+    }
+
+    ret = CHECK_CU(cu->cuStreamSynchronize(hwctx->stream));
+    if (ret < 0)
+        goto exit;
+
+exit:
+    CHECK_CU(cu->cuCtxPopCurrent(&dummy));
+
+    return 0;
+}
+
+static int cuda_transfer_data_to(AVHWFramesContext *ctx, AVFrame *dst,
+                                 const AVFrame *src)
+{
+    CUDAFramesContext       *priv = ctx->internal->priv;
+    AVHWDeviceContext *device_ctx = ctx->device_ctx;
+    AVCUDADeviceContext    *hwctx = device_ctx->hwctx;
+    CudaFunctions             *cu = hwctx->internal->cuda_dl;
+
+    CUcontext dummy;
+    int i, ret;
+
+    ret = CHECK_CU(cu->cuCtxPushCurrent(hwctx->cuda_ctx));
+    if (ret < 0)
+        return ret;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(src->data) && src->data[i]; i++) {
+        CUDA_MEMCPY2D cpy = {
+            .srcMemoryType = CU_MEMORYTYPE_HOST,
+            .dstMemoryType = CU_MEMORYTYPE_DEVICE,
+            .srcHost       = src->data[i],
+            .dstDevice     = (CUdeviceptr)dst->data[i],
+            .srcPitch      = src->linesize[i],
+            .dstPitch      = dst->linesize[i],
+            .WidthInBytes  = FFMIN(src->linesize[i], dst->linesize[i]),
+            .Height        = src->height >> (i ? priv->shift_height : 0),
+        };
+
+        ret = CHECK_CU(cu->cuMemcpy2DAsync(&cpy, hwctx->stream));
+        if (ret < 0)
+            goto exit;
+    }
+
+exit:
+    CHECK_CU(cu->cuCtxPopCurrent(&dummy));
+
+    return 0;
+}
+
+static void cuda_device_uninit(AVHWDeviceContext *device_ctx)
+{
+    AVCUDADeviceContext *hwctx = device_ctx->hwctx;
+
+    if (hwctx->internal) {
+        CudaFunctions *cu = hwctx->internal->cuda_dl;
+        if (hwctx->internal->is_allocated && hwctx->cuda_ctx) {
+            CHECK_CU(cu->cuCtxDestroy(hwctx->cuda_ctx));
+            hwctx->cuda_ctx = NULL;
+        }
+        cuda_free_functions(&hwctx->internal->cuda_dl);
+    }
+
+    av_freep(&hwctx->internal);
+}
+
+static int cuda_device_init(AVHWDeviceContext *ctx)
+{
+    AVCUDADeviceContext *hwctx = ctx->hwctx;
+    int ret;
+
+    if (!hwctx->internal) {
+        hwctx->internal = av_mallocz(sizeof(*hwctx->internal));
+        if (!hwctx->internal)
+            return AVERROR(ENOMEM);
+    }
+
+    if (!hwctx->internal->cuda_dl) {
+        ret = cuda_load_functions(&hwctx->internal->cuda_dl, ctx);
+        if (ret < 0) {
+            av_log(ctx, AV_LOG_ERROR, "Could not dynamically load CUDA\n");
+            goto error;
+        }
+    }
+
+    return 0;
+
+error:
+    cuda_device_uninit(ctx);
+    return ret;
+}
+
+static int cuda_device_create(AVHWDeviceContext *device_ctx,
+                              const char *device,
+                              AVDictionary *opts, int flags)
+{
+    AVCUDADeviceContext *hwctx = device_ctx->hwctx;
+    CudaFunctions *cu;
+    CUdevice cu_device;
+    CUcontext dummy;
+    int ret, device_idx = 0;
+
+    if (device)
+        device_idx = strtol(device, NULL, 0);
+
+    if (cuda_device_init(device_ctx) < 0)
+        goto error;
+
+    cu = hwctx->internal->cuda_dl;
+
+    ret = CHECK_CU(cu->cuInit(0));
+    if (ret < 0)
+        goto error;
+
+    ret = CHECK_CU(cu->cuDeviceGet(&cu_device, device_idx));
+    if (ret < 0)
+        goto error;
+
+    ret = CHECK_CU(cu->cuCtxCreate(&hwctx->cuda_ctx, CU_CTX_SCHED_BLOCKING_SYNC, cu_device));
+    if (ret < 0)
+        goto error;
+
+    // Setting stream to NULL will make functions automatically use the default CUstream
+    hwctx->stream = NULL;
+
+    CHECK_CU(cu->cuCtxPopCurrent(&dummy));
+
+    hwctx->internal->is_allocated = 1;
+
+    return 0;
+
+error:
+    cuda_device_uninit(device_ctx);
+    return AVERROR_UNKNOWN;
+}
+
+const HWContextType ff_hwcontext_type_cuda = {
+    .type                 = AV_HWDEVICE_TYPE_CUDA,
+    .name                 = "CUDA",
+
+    .device_hwctx_size    = sizeof(AVCUDADeviceContext),
+    .frames_priv_size     = sizeof(CUDAFramesContext),
+
+    .device_create        = cuda_device_create,
+    .device_init          = cuda_device_init,
+    .device_uninit        = cuda_device_uninit,
+    .frames_get_constraints = cuda_frames_get_constraints,
+    .frames_init          = cuda_frames_init,
+    .frames_get_buffer    = cuda_get_buffer,
+    .transfer_get_formats = cuda_transfer_get_formats,
+    .transfer_data_to     = cuda_transfer_data_to,
+    .transfer_data_from   = cuda_transfer_data_from,
+
+    .pix_fmts             = (const enum AVPixelFormat[]){ AV_PIX_FMT_CUDA, AV_PIX_FMT_NONE },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_cuda.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_cuda.h
new file mode 100644
index 000000000..81a0552ca
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_cuda.h
@@ -0,0 +1,52 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+#ifndef AVUTIL_HWCONTEXT_CUDA_H
+#define AVUTIL_HWCONTEXT_CUDA_H
+
+#ifndef CUDA_VERSION
+#include <cuda.h>
+#endif
+
+#include "pixfmt.h"
+
+/**
+ * @file
+ * An API-specific header for AV_HWDEVICE_TYPE_CUDA.
+ *
+ * This API supports dynamic frame pools. AVHWFramesContext.pool must return
+ * AVBufferRefs whose data pointer is a CUdeviceptr.
+ */
+
+typedef struct AVCUDADeviceContextInternal AVCUDADeviceContextInternal;
+
+/**
+ * This struct is allocated as AVHWDeviceContext.hwctx
+ */
+typedef struct AVCUDADeviceContext {
+    CUcontext cuda_ctx;
+    CUstream stream;
+    AVCUDADeviceContextInternal *internal;
+} AVCUDADeviceContext;
+
+/**
+ * AVHWFramesContext.hwctx is currently not used
+ */
+
+#endif /* AVUTIL_HWCONTEXT_CUDA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_cuda_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_cuda_internal.h
new file mode 100644
index 000000000..e1bc6ff35
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_cuda_internal.h
@@ -0,0 +1,37 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+#ifndef AVUTIL_HWCONTEXT_CUDA_INTERNAL_H
+#define AVUTIL_HWCONTEXT_CUDA_INTERNAL_H
+
+#include "compat/cuda/dynlink_loader.h"
+#include "hwcontext_cuda.h"
+
+/**
+ * @file
+ * FFmpeg internal API for CUDA.
+ */
+
+struct AVCUDADeviceContextInternal {
+    CudaFunctions *cuda_dl;
+    int is_allocated;
+};
+
+#endif /* AVUTIL_HWCONTEXT_CUDA_INTERNAL_H */
+
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_d3d11va.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_d3d11va.c
new file mode 100644
index 000000000..6670c4757
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_d3d11va.c
@@ -0,0 +1,615 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include <windows.h>
+
+#define COBJMACROS
+
+#include <initguid.h>
+#include <d3d11.h>
+#include <dxgi1_2.h>
+
+#if HAVE_DXGIDEBUG_H
+#include <dxgidebug.h>
+#endif
+
+#include "avassert.h"
+#include "common.h"
+#include "hwcontext.h"
+#include "hwcontext_d3d11va.h"
+#include "hwcontext_internal.h"
+#include "imgutils.h"
+#include "pixdesc.h"
+#include "pixfmt.h"
+#include "thread.h"
+
+typedef HRESULT(WINAPI *PFN_CREATE_DXGI_FACTORY)(REFIID riid, void **ppFactory);
+
+static AVOnce functions_loaded = AV_ONCE_INIT;
+
+static PFN_CREATE_DXGI_FACTORY mCreateDXGIFactory;
+static PFN_D3D11_CREATE_DEVICE mD3D11CreateDevice;
+
+static av_cold void load_functions(void)
+{
+#if !HAVE_UWP
+    // We let these "leak" - this is fine, as unloading has no great benefit, and
+    // Windows will mark a DLL as loaded forever if its internal refcount overflows
+    // from too many LoadLibrary calls.
+    HANDLE d3dlib, dxgilib;
+
+    d3dlib  = LoadLibrary("d3d11.dll");
+    dxgilib = LoadLibrary("dxgi.dll");
+    if (!d3dlib || !dxgilib)
+        return;
+
+    mD3D11CreateDevice = (PFN_D3D11_CREATE_DEVICE) GetProcAddress(d3dlib, "D3D11CreateDevice");
+    mCreateDXGIFactory = (PFN_CREATE_DXGI_FACTORY) GetProcAddress(dxgilib, "CreateDXGIFactory");
+#else
+    // In UWP (which lacks LoadLibrary), CreateDXGIFactory isn't available,
+    // only CreateDXGIFactory1
+    mD3D11CreateDevice = (PFN_D3D11_CREATE_DEVICE) D3D11CreateDevice;
+    mCreateDXGIFactory = (PFN_CREATE_DXGI_FACTORY) CreateDXGIFactory1;
+#endif
+}
+
+typedef struct D3D11VAFramesContext {
+    int nb_surfaces_used;
+
+    DXGI_FORMAT format;
+
+    ID3D11Texture2D *staging_texture;
+} D3D11VAFramesContext;
+
+static const struct {
+    DXGI_FORMAT d3d_format;
+    enum AVPixelFormat pix_fmt;
+} supported_formats[] = {
+    { DXGI_FORMAT_NV12,         AV_PIX_FMT_NV12 },
+    { DXGI_FORMAT_P010,         AV_PIX_FMT_P010 },
+    // Special opaque formats. The pix_fmt is merely a place holder, as the
+    // opaque format cannot be accessed directly.
+    { DXGI_FORMAT_420_OPAQUE,   AV_PIX_FMT_YUV420P },
+};
+
+static void d3d11va_default_lock(void *ctx)
+{
+    WaitForSingleObjectEx(ctx, INFINITE, FALSE);
+}
+
+static void d3d11va_default_unlock(void *ctx)
+{
+    ReleaseMutex(ctx);
+}
+
+static void d3d11va_frames_uninit(AVHWFramesContext *ctx)
+{
+    AVD3D11VAFramesContext *frames_hwctx = ctx->hwctx;
+    D3D11VAFramesContext *s = ctx->internal->priv;
+
+    if (frames_hwctx->texture)
+        ID3D11Texture2D_Release(frames_hwctx->texture);
+    frames_hwctx->texture = NULL;
+
+    if (s->staging_texture)
+        ID3D11Texture2D_Release(s->staging_texture);
+    s->staging_texture = NULL;
+}
+
+static int d3d11va_frames_get_constraints(AVHWDeviceContext *ctx,
+                                          const void *hwconfig,
+                                          AVHWFramesConstraints *constraints)
+{
+    AVD3D11VADeviceContext *device_hwctx = ctx->hwctx;
+    int nb_sw_formats = 0;
+    HRESULT hr;
+    int i;
+
+    constraints->valid_sw_formats = av_malloc_array(FF_ARRAY_ELEMS(supported_formats) + 1,
+                                                    sizeof(*constraints->valid_sw_formats));
+    if (!constraints->valid_sw_formats)
+        return AVERROR(ENOMEM);
+
+    for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
+        UINT format_support = 0;
+        hr = ID3D11Device_CheckFormatSupport(device_hwctx->device, supported_formats[i].d3d_format, &format_support);
+        if (SUCCEEDED(hr) && (format_support & D3D11_FORMAT_SUPPORT_TEXTURE2D))
+            constraints->valid_sw_formats[nb_sw_formats++] = supported_formats[i].pix_fmt;
+    }
+    constraints->valid_sw_formats[nb_sw_formats] = AV_PIX_FMT_NONE;
+
+    constraints->valid_hw_formats = av_malloc_array(2, sizeof(*constraints->valid_hw_formats));
+    if (!constraints->valid_hw_formats)
+        return AVERROR(ENOMEM);
+
+    constraints->valid_hw_formats[0] = AV_PIX_FMT_D3D11;
+    constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE;
+
+    return 0;
+}
+
+static void free_texture(void *opaque, uint8_t *data)
+{
+    ID3D11Texture2D_Release((ID3D11Texture2D *)opaque);
+    av_free(data);
+}
+
+static AVBufferRef *wrap_texture_buf(ID3D11Texture2D *tex, int index)
+{
+    AVBufferRef *buf;
+    AVD3D11FrameDescriptor *desc = av_mallocz(sizeof(*desc));
+    if (!desc) {
+        ID3D11Texture2D_Release(tex);
+        return NULL;
+    }
+
+    desc->texture = tex;
+    desc->index   = index;
+
+    buf = av_buffer_create((uint8_t *)desc, sizeof(desc), free_texture, tex, 0);
+    if (!buf) {
+        ID3D11Texture2D_Release(tex);
+        av_free(desc);
+        return NULL;
+    }
+
+    return buf;
+}
+
+static AVBufferRef *d3d11va_alloc_single(AVHWFramesContext *ctx)
+{
+    D3D11VAFramesContext       *s = ctx->internal->priv;
+    AVD3D11VAFramesContext *hwctx = ctx->hwctx;
+    AVD3D11VADeviceContext *device_hwctx = ctx->device_ctx->hwctx;
+    HRESULT hr;
+    ID3D11Texture2D *tex;
+    D3D11_TEXTURE2D_DESC texDesc = {
+        .Width      = ctx->width,
+        .Height     = ctx->height,
+        .MipLevels  = 1,
+        .Format     = s->format,
+        .SampleDesc = { .Count = 1 },
+        .ArraySize  = 1,
+        .Usage      = D3D11_USAGE_DEFAULT,
+        .BindFlags  = hwctx->BindFlags,
+        .MiscFlags  = hwctx->MiscFlags,
+    };
+
+    hr = ID3D11Device_CreateTexture2D(device_hwctx->device, &texDesc, NULL, &tex);
+    if (FAILED(hr)) {
+        av_log(ctx, AV_LOG_ERROR, "Could not create the texture (%lx)\n", (long)hr);
+        return NULL;
+    }
+
+    return wrap_texture_buf(tex, 0);
+}
+
+static AVBufferRef *d3d11va_pool_alloc(void *opaque, int size)
+{
+    AVHWFramesContext        *ctx = (AVHWFramesContext*)opaque;
+    D3D11VAFramesContext       *s = ctx->internal->priv;
+    AVD3D11VAFramesContext *hwctx = ctx->hwctx;
+    D3D11_TEXTURE2D_DESC  texDesc;
+
+    if (!hwctx->texture)
+        return d3d11va_alloc_single(ctx);
+
+    ID3D11Texture2D_GetDesc(hwctx->texture, &texDesc);
+
+    if (s->nb_surfaces_used >= texDesc.ArraySize) {
+        av_log(ctx, AV_LOG_ERROR, "Static surface pool size exceeded.\n");
+        return NULL;
+    }
+
+    ID3D11Texture2D_AddRef(hwctx->texture);
+    return wrap_texture_buf(hwctx->texture, s->nb_surfaces_used++);
+}
+
+static int d3d11va_frames_init(AVHWFramesContext *ctx)
+{
+    AVD3D11VAFramesContext *hwctx        = ctx->hwctx;
+    AVD3D11VADeviceContext *device_hwctx = ctx->device_ctx->hwctx;
+    D3D11VAFramesContext              *s = ctx->internal->priv;
+
+    int i;
+    HRESULT hr;
+    D3D11_TEXTURE2D_DESC texDesc;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
+        if (ctx->sw_format == supported_formats[i].pix_fmt) {
+            s->format = supported_formats[i].d3d_format;
+            break;
+        }
+    }
+    if (i == FF_ARRAY_ELEMS(supported_formats)) {
+        av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
+               av_get_pix_fmt_name(ctx->sw_format));
+        return AVERROR(EINVAL);
+    }
+
+    texDesc = (D3D11_TEXTURE2D_DESC){
+        .Width      = ctx->width,
+        .Height     = ctx->height,
+        .MipLevels  = 1,
+        .Format     = s->format,
+        .SampleDesc = { .Count = 1 },
+        .ArraySize  = ctx->initial_pool_size,
+        .Usage      = D3D11_USAGE_DEFAULT,
+        .BindFlags  = hwctx->BindFlags,
+        .MiscFlags  = hwctx->MiscFlags,
+    };
+
+    if (hwctx->texture) {
+        D3D11_TEXTURE2D_DESC texDesc2;
+        ID3D11Texture2D_GetDesc(hwctx->texture, &texDesc2);
+
+        if (texDesc.Width != texDesc2.Width ||
+            texDesc.Height != texDesc2.Height ||
+            texDesc.Format != texDesc2.Format) {
+            av_log(ctx, AV_LOG_ERROR, "User-provided texture has mismatching parameters\n");
+            return AVERROR(EINVAL);
+        }
+    } else if (texDesc.ArraySize > 0) {
+        hr = ID3D11Device_CreateTexture2D(device_hwctx->device, &texDesc, NULL, &hwctx->texture);
+        if (FAILED(hr)) {
+            av_log(ctx, AV_LOG_ERROR, "Could not create the texture (%lx)\n", (long)hr);
+            return AVERROR_UNKNOWN;
+        }
+    }
+
+    ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(AVD3D11FrameDescriptor),
+                                                        ctx, d3d11va_pool_alloc, NULL);
+    if (!ctx->internal->pool_internal)
+        return AVERROR(ENOMEM);
+
+    return 0;
+}
+
+static int d3d11va_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
+{
+    AVD3D11FrameDescriptor *desc;
+
+    frame->buf[0] = av_buffer_pool_get(ctx->pool);
+    if (!frame->buf[0])
+        return AVERROR(ENOMEM);
+
+    desc = (AVD3D11FrameDescriptor *)frame->buf[0]->data;
+
+    frame->data[0] = (uint8_t *)desc->texture;
+    frame->data[1] = (uint8_t *)desc->index;
+    frame->format  = AV_PIX_FMT_D3D11;
+    frame->width   = ctx->width;
+    frame->height  = ctx->height;
+
+    return 0;
+}
+
+static int d3d11va_transfer_get_formats(AVHWFramesContext *ctx,
+                                        enum AVHWFrameTransferDirection dir,
+                                        enum AVPixelFormat **formats)
+{
+    D3D11VAFramesContext *s = ctx->internal->priv;
+    enum AVPixelFormat *fmts;
+
+    fmts = av_malloc_array(2, sizeof(*fmts));
+    if (!fmts)
+        return AVERROR(ENOMEM);
+
+    fmts[0] = ctx->sw_format;
+    fmts[1] = AV_PIX_FMT_NONE;
+
+    // Don't signal support for opaque formats. Actual access would fail.
+    if (s->format == DXGI_FORMAT_420_OPAQUE)
+        fmts[0] = AV_PIX_FMT_NONE;
+
+    *formats = fmts;
+
+    return 0;
+}
+
+static int d3d11va_create_staging_texture(AVHWFramesContext *ctx)
+{
+    AVD3D11VADeviceContext *device_hwctx = ctx->device_ctx->hwctx;
+    D3D11VAFramesContext              *s = ctx->internal->priv;
+    HRESULT hr;
+    D3D11_TEXTURE2D_DESC texDesc = {
+        .Width          = ctx->width,
+        .Height         = ctx->height,
+        .MipLevels      = 1,
+        .Format         = s->format,
+        .SampleDesc     = { .Count = 1 },
+        .ArraySize      = 1,
+        .Usage          = D3D11_USAGE_STAGING,
+        .CPUAccessFlags = D3D11_CPU_ACCESS_READ | D3D11_CPU_ACCESS_WRITE,
+    };
+
+    hr = ID3D11Device_CreateTexture2D(device_hwctx->device, &texDesc, NULL, &s->staging_texture);
+    if (FAILED(hr)) {
+        av_log(ctx, AV_LOG_ERROR, "Could not create the staging texture (%lx)\n", (long)hr);
+        return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+
+static void fill_texture_ptrs(uint8_t *data[4], int linesize[4],
+                              AVHWFramesContext *ctx,
+                              D3D11_TEXTURE2D_DESC *desc,
+                              D3D11_MAPPED_SUBRESOURCE *map)
+{
+    int i;
+
+    for (i = 0; i < 4; i++)
+        linesize[i] = map->RowPitch;
+
+    av_image_fill_pointers(data, ctx->sw_format, desc->Height,
+                           (uint8_t*)map->pData, linesize);
+}
+
+static int d3d11va_transfer_data(AVHWFramesContext *ctx, AVFrame *dst,
+                                 const AVFrame *src)
+{
+    AVD3D11VADeviceContext *device_hwctx = ctx->device_ctx->hwctx;
+    D3D11VAFramesContext              *s = ctx->internal->priv;
+    int download = src->format == AV_PIX_FMT_D3D11;
+    const AVFrame *frame = download ? src : dst;
+    const AVFrame *other = download ? dst : src;
+    // (The interface types are compatible.)
+    ID3D11Resource *texture = (ID3D11Resource *)(ID3D11Texture2D *)frame->data[0];
+    int index = (intptr_t)frame->data[1];
+    ID3D11Resource *staging;
+    int w = FFMIN(dst->width,  src->width);
+    int h = FFMIN(dst->height, src->height);
+    uint8_t *map_data[4];
+    int map_linesize[4];
+    D3D11_TEXTURE2D_DESC desc;
+    D3D11_MAPPED_SUBRESOURCE map;
+    HRESULT hr;
+
+    if (frame->hw_frames_ctx->data != (uint8_t *)ctx || other->format != ctx->sw_format)
+        return AVERROR(EINVAL);
+
+    device_hwctx->lock(device_hwctx->lock_ctx);
+
+    if (!s->staging_texture) {
+        int res = d3d11va_create_staging_texture(ctx);
+        if (res < 0)
+            return res;
+    }
+
+    staging = (ID3D11Resource *)s->staging_texture;
+
+    ID3D11Texture2D_GetDesc(s->staging_texture, &desc);
+
+    if (download) {
+        ID3D11DeviceContext_CopySubresourceRegion(device_hwctx->device_context,
+                                                  staging, 0, 0, 0, 0,
+                                                  texture, index, NULL);
+
+        hr = ID3D11DeviceContext_Map(device_hwctx->device_context,
+                                     staging, 0, D3D11_MAP_READ, 0, &map);
+        if (FAILED(hr))
+            goto map_failed;
+
+        fill_texture_ptrs(map_data, map_linesize, ctx, &desc, &map);
+
+        av_image_copy(dst->data, dst->linesize, (const uint8_t **)map_data, map_linesize,
+                      ctx->sw_format, w, h);
+
+        ID3D11DeviceContext_Unmap(device_hwctx->device_context, staging, 0);
+    } else {
+        hr = ID3D11DeviceContext_Map(device_hwctx->device_context,
+                                     staging, 0, D3D11_MAP_WRITE, 0, &map);
+        if (FAILED(hr))
+            goto map_failed;
+
+        fill_texture_ptrs(map_data, map_linesize, ctx, &desc, &map);
+
+        av_image_copy(map_data, map_linesize, (const uint8_t **)src->data, src->linesize,
+                      ctx->sw_format, w, h);
+
+        ID3D11DeviceContext_Unmap(device_hwctx->device_context, staging, 0);
+
+        ID3D11DeviceContext_CopySubresourceRegion(device_hwctx->device_context,
+                                                  texture, index, 0, 0, 0,
+                                                  staging, 0, NULL);
+    }
+
+    device_hwctx->unlock(device_hwctx->lock_ctx);
+    return 0;
+
+map_failed:
+    av_log(ctx, AV_LOG_ERROR, "Unable to lock D3D11VA surface (%lx)\n", (long)hr);
+    device_hwctx->unlock(device_hwctx->lock_ctx);
+    return AVERROR_UNKNOWN;
+}
+
+static int d3d11va_device_init(AVHWDeviceContext *hwdev)
+{
+    AVD3D11VADeviceContext *device_hwctx = hwdev->hwctx;
+    HRESULT hr;
+
+    if (!device_hwctx->lock) {
+        device_hwctx->lock_ctx = CreateMutex(NULL, 0, NULL);
+        if (device_hwctx->lock_ctx == INVALID_HANDLE_VALUE) {
+            av_log(NULL, AV_LOG_ERROR, "Failed to create a mutex\n");
+            return AVERROR(EINVAL);
+        }
+        device_hwctx->lock   = d3d11va_default_lock;
+        device_hwctx->unlock = d3d11va_default_unlock;
+    }
+
+    if (!device_hwctx->device_context) {
+        ID3D11Device_GetImmediateContext(device_hwctx->device, &device_hwctx->device_context);
+        if (!device_hwctx->device_context)
+            return AVERROR_UNKNOWN;
+    }
+
+    if (!device_hwctx->video_device) {
+        hr = ID3D11DeviceContext_QueryInterface(device_hwctx->device, &IID_ID3D11VideoDevice,
+                                                (void **)&device_hwctx->video_device);
+        if (FAILED(hr))
+            return AVERROR_UNKNOWN;
+    }
+
+    if (!device_hwctx->video_context) {
+        hr = ID3D11DeviceContext_QueryInterface(device_hwctx->device_context, &IID_ID3D11VideoContext,
+                                                (void **)&device_hwctx->video_context);
+        if (FAILED(hr))
+            return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+
+static void d3d11va_device_uninit(AVHWDeviceContext *hwdev)
+{
+    AVD3D11VADeviceContext *device_hwctx = hwdev->hwctx;
+
+    if (device_hwctx->device) {
+        ID3D11Device_Release(device_hwctx->device);
+        device_hwctx->device = NULL;
+    }
+
+    if (device_hwctx->device_context) {
+        ID3D11DeviceContext_Release(device_hwctx->device_context);
+        device_hwctx->device_context = NULL;
+    }
+
+    if (device_hwctx->video_device) {
+        ID3D11VideoDevice_Release(device_hwctx->video_device);
+        device_hwctx->video_device = NULL;
+    }
+
+    if (device_hwctx->video_context) {
+        ID3D11VideoContext_Release(device_hwctx->video_context);
+        device_hwctx->video_context = NULL;
+    }
+
+    if (device_hwctx->lock == d3d11va_default_lock) {
+        CloseHandle(device_hwctx->lock_ctx);
+        device_hwctx->lock_ctx = INVALID_HANDLE_VALUE;
+        device_hwctx->lock = NULL;
+    }
+}
+
+static int d3d11va_device_create(AVHWDeviceContext *ctx, const char *device,
+                                 AVDictionary *opts, int flags)
+{
+    AVD3D11VADeviceContext *device_hwctx = ctx->hwctx;
+
+    HRESULT hr;
+    IDXGIAdapter           *pAdapter = NULL;
+    ID3D10Multithread      *pMultithread;
+    UINT creationFlags = D3D11_CREATE_DEVICE_VIDEO_SUPPORT;
+    int is_debug       = !!av_dict_get(opts, "debug", NULL, 0);
+    int ret;
+
+    // (On UWP we can't check this.)
+#if !HAVE_UWP
+    if (!LoadLibrary("d3d11_1sdklayers.dll"))
+        is_debug = 0;
+#endif
+
+    if (is_debug)
+        creationFlags |= D3D11_CREATE_DEVICE_DEBUG;
+
+    if ((ret = ff_thread_once(&functions_loaded, load_functions)) != 0)
+        return AVERROR_UNKNOWN;
+    if (!mD3D11CreateDevice || !mCreateDXGIFactory) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to load D3D11 library or its functions\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    if (device) {
+        IDXGIFactory2 *pDXGIFactory;
+        hr = mCreateDXGIFactory(&IID_IDXGIFactory2, (void **)&pDXGIFactory);
+        if (SUCCEEDED(hr)) {
+            int adapter = atoi(device);
+            if (FAILED(IDXGIFactory2_EnumAdapters(pDXGIFactory, adapter, &pAdapter)))
+                pAdapter = NULL;
+            IDXGIFactory2_Release(pDXGIFactory);
+        }
+    }
+
+    if (pAdapter) {
+        DXGI_ADAPTER_DESC desc;
+        hr = IDXGIAdapter2_GetDesc(pAdapter, &desc);
+        if (!FAILED(hr)) {
+            av_log(ctx, AV_LOG_INFO, "Using device %04x:%04x (%ls).\n",
+                   desc.VendorId, desc.DeviceId, desc.Description);
+        }
+    }
+
+    hr = mD3D11CreateDevice(pAdapter, pAdapter ? D3D_DRIVER_TYPE_UNKNOWN : D3D_DRIVER_TYPE_HARDWARE, NULL, creationFlags, NULL, 0,
+                   D3D11_SDK_VERSION, &device_hwctx->device, NULL, NULL);
+    if (pAdapter)
+        IDXGIAdapter_Release(pAdapter);
+    if (FAILED(hr)) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device (%lx)\n", (long)hr);
+        return AVERROR_UNKNOWN;
+    }
+
+    hr = ID3D11Device_QueryInterface(device_hwctx->device, &IID_ID3D10Multithread, (void **)&pMultithread);
+    if (SUCCEEDED(hr)) {
+        ID3D10Multithread_SetMultithreadProtected(pMultithread, TRUE);
+        ID3D10Multithread_Release(pMultithread);
+    }
+
+#if !HAVE_UWP && HAVE_DXGIDEBUG_H
+    if (is_debug) {
+        HANDLE dxgidebug_dll = LoadLibrary("dxgidebug.dll");
+        if (dxgidebug_dll) {
+            HRESULT (WINAPI  * pf_DXGIGetDebugInterface)(const GUID *riid, void **ppDebug)
+                = (void *)GetProcAddress(dxgidebug_dll, "DXGIGetDebugInterface");
+            if (pf_DXGIGetDebugInterface) {
+                IDXGIDebug *dxgi_debug = NULL;
+                hr = pf_DXGIGetDebugInterface(&IID_IDXGIDebug, (void**)&dxgi_debug);
+                if (SUCCEEDED(hr) && dxgi_debug)
+                    IDXGIDebug_ReportLiveObjects(dxgi_debug, DXGI_DEBUG_ALL, DXGI_DEBUG_RLO_ALL);
+            }
+        }
+    }
+#endif
+
+    return 0;
+}
+
+const HWContextType ff_hwcontext_type_d3d11va = {
+    .type                 = AV_HWDEVICE_TYPE_D3D11VA,
+    .name                 = "D3D11VA",
+
+    .device_hwctx_size    = sizeof(AVD3D11VADeviceContext),
+    .frames_hwctx_size    = sizeof(AVD3D11VAFramesContext),
+    .frames_priv_size     = sizeof(D3D11VAFramesContext),
+
+    .device_create        = d3d11va_device_create,
+    .device_init          = d3d11va_device_init,
+    .device_uninit        = d3d11va_device_uninit,
+    .frames_get_constraints = d3d11va_frames_get_constraints,
+    .frames_init          = d3d11va_frames_init,
+    .frames_uninit        = d3d11va_frames_uninit,
+    .frames_get_buffer    = d3d11va_get_buffer,
+    .transfer_get_formats = d3d11va_transfer_get_formats,
+    .transfer_data_to     = d3d11va_transfer_data,
+    .transfer_data_from   = d3d11va_transfer_data,
+
+    .pix_fmts             = (const enum AVPixelFormat[]){ AV_PIX_FMT_D3D11, AV_PIX_FMT_NONE },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_d3d11va.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_d3d11va.h
new file mode 100644
index 000000000..9f91e9b1b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_d3d11va.h
@@ -0,0 +1,169 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HWCONTEXT_D3D11VA_H
+#define AVUTIL_HWCONTEXT_D3D11VA_H
+
+/**
+ * @file
+ * An API-specific header for AV_HWDEVICE_TYPE_D3D11VA.
+ *
+ * The default pool implementation will be fixed-size if initial_pool_size is
+ * set (and allocate elements from an array texture). Otherwise it will allocate
+ * individual textures. Be aware that decoding requires a single array texture.
+ *
+ * Using sw_format==AV_PIX_FMT_YUV420P has special semantics, and maps to
+ * DXGI_FORMAT_420_OPAQUE. av_hwframe_transfer_data() is not supported for
+ * this format. Refer to MSDN for details.
+ *
+ * av_hwdevice_ctx_create() for this device type supports a key named "debug"
+ * for the AVDictionary entry. If this is set to any value, the device creation
+ * code will try to load various supported D3D debugging layers.
+ */
+
+#include <d3d11.h>
+#include <stdint.h>
+
+/**
+ * This struct is allocated as AVHWDeviceContext.hwctx
+ */
+typedef struct AVD3D11VADeviceContext {
+    /**
+     * Device used for texture creation and access. This can also be used to
+     * set the libavcodec decoding device.
+     *
+     * Must be set by the user. This is the only mandatory field - the other
+     * device context fields are set from this and are available for convenience.
+     *
+     * Deallocating the AVHWDeviceContext will always release this interface,
+     * and it does not matter whether it was user-allocated.
+     */
+    ID3D11Device        *device;
+
+    /**
+     * If unset, this will be set from the device field on init.
+     *
+     * Deallocating the AVHWDeviceContext will always release this interface,
+     * and it does not matter whether it was user-allocated.
+     */
+    ID3D11DeviceContext *device_context;
+
+    /**
+     * If unset, this will be set from the device field on init.
+     *
+     * Deallocating the AVHWDeviceContext will always release this interface,
+     * and it does not matter whether it was user-allocated.
+     */
+    ID3D11VideoDevice   *video_device;
+
+    /**
+     * If unset, this will be set from the device_context field on init.
+     *
+     * Deallocating the AVHWDeviceContext will always release this interface,
+     * and it does not matter whether it was user-allocated.
+     */
+    ID3D11VideoContext  *video_context;
+
+    /**
+     * Callbacks for locking. They protect accesses to device_context and
+     * video_context calls. They also protect access to the internal staging
+     * texture (for av_hwframe_transfer_data() calls). They do NOT protect
+     * access to hwcontext or decoder state in general.
+     *
+     * If unset on init, the hwcontext implementation will set them to use an
+     * internal mutex.
+     *
+     * The underlying lock must be recursive. lock_ctx is for free use by the
+     * locking implementation.
+     */
+    void (*lock)(void *lock_ctx);
+    void (*unlock)(void *lock_ctx);
+    void *lock_ctx;
+} AVD3D11VADeviceContext;
+
+/**
+ * D3D11 frame descriptor for pool allocation.
+ *
+ * In user-allocated pools, AVHWFramesContext.pool must return AVBufferRefs
+ * with the data pointer pointing at an object of this type describing the
+ * planes of the frame.
+ *
+ * This has no use outside of custom allocation, and AVFrame AVBufferRef do not
+ * necessarily point to an instance of this struct.
+ */
+typedef struct AVD3D11FrameDescriptor {
+    /**
+     * The texture in which the frame is located. The reference count is
+     * managed by the AVBufferRef, and destroying the reference will release
+     * the interface.
+     *
+     * Normally stored in AVFrame.data[0].
+     */
+    ID3D11Texture2D *texture;
+
+    /**
+     * The index into the array texture element representing the frame, or 0
+     * if the texture is not an array texture.
+     *
+     * Normally stored in AVFrame.data[1] (cast from intptr_t).
+     */
+    intptr_t index;
+} AVD3D11FrameDescriptor;
+
+/**
+ * This struct is allocated as AVHWFramesContext.hwctx
+ */
+typedef struct AVD3D11VAFramesContext {
+    /**
+     * The canonical texture used for pool allocation. If this is set to NULL
+     * on init, the hwframes implementation will allocate and set an array
+     * texture if initial_pool_size > 0.
+     *
+     * The only situation when the API user should set this is:
+     * - the user wants to do manual pool allocation (setting
+     *   AVHWFramesContext.pool), instead of letting AVHWFramesContext
+     *   allocate the pool
+     * - of an array texture
+     * - and wants it to use it for decoding
+     * - this has to be done before calling av_hwframe_ctx_init()
+     *
+     * Deallocating the AVHWFramesContext will always release this interface,
+     * and it does not matter whether it was user-allocated.
+     *
+     * This is in particular used by the libavcodec D3D11VA hwaccel, which
+     * requires a single array texture. It will create ID3D11VideoDecoderOutputView
+     * objects for each array texture element on decoder initialization.
+     */
+    ID3D11Texture2D *texture;
+
+    /**
+     * D3D11_TEXTURE2D_DESC.BindFlags used for texture creation. The user must
+     * at least set D3D11_BIND_DECODER if the frames context is to be used for
+     * video decoding.
+     * This field is ignored/invalid if a user-allocated texture is provided.
+     */
+    UINT BindFlags;
+
+    /**
+     * D3D11_TEXTURE2D_DESC.MiscFlags used for texture creation.
+     * This field is ignored/invalid if a user-allocated texture is provided.
+     */
+    UINT MiscFlags;
+} AVD3D11VAFramesContext;
+
+#endif /* AVUTIL_HWCONTEXT_D3D11VA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_drm.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_drm.c
new file mode 100644
index 000000000..32cbde82e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_drm.c
@@ -0,0 +1,289 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#include <drm.h>
+#include <xf86drm.h>
+
+#include "avassert.h"
+#include "hwcontext.h"
+#include "hwcontext_drm.h"
+#include "hwcontext_internal.h"
+#include "imgutils.h"
+
+
+static void drm_device_free(AVHWDeviceContext *hwdev)
+{
+    AVDRMDeviceContext *hwctx = hwdev->hwctx;
+
+    close(hwctx->fd);
+}
+
+static int drm_device_create(AVHWDeviceContext *hwdev, const char *device,
+                             AVDictionary *opts, int flags)
+{
+    AVDRMDeviceContext *hwctx = hwdev->hwctx;
+    drmVersionPtr version;
+
+    hwctx->fd = open(device, O_RDWR);
+    if (hwctx->fd < 0)
+        return AVERROR(errno);
+
+    version = drmGetVersion(hwctx->fd);
+    if (!version) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get version information "
+               "from %s: probably not a DRM device?\n", device);
+        close(hwctx->fd);
+        return AVERROR(EINVAL);
+    }
+
+    av_log(hwdev, AV_LOG_VERBOSE, "Opened DRM device %s: driver %s "
+           "version %d.%d.%d.\n", device, version->name,
+           version->version_major, version->version_minor,
+           version->version_patchlevel);
+
+    drmFreeVersion(version);
+
+    hwdev->free = &drm_device_free;
+
+    return 0;
+}
+
+static int drm_get_buffer(AVHWFramesContext *hwfc, AVFrame *frame)
+{
+    frame->buf[0] = av_buffer_pool_get(hwfc->pool);
+    if (!frame->buf[0])
+        return AVERROR(ENOMEM);
+
+    frame->data[0] = (uint8_t*)frame->buf[0]->data;
+
+    frame->format = AV_PIX_FMT_DRM_PRIME;
+    frame->width  = hwfc->width;
+    frame->height = hwfc->height;
+
+    return 0;
+}
+
+typedef struct DRMMapping {
+    // Address and length of each mmap()ed region.
+    int nb_regions;
+    void *address[AV_DRM_MAX_PLANES];
+    size_t length[AV_DRM_MAX_PLANES];
+} DRMMapping;
+
+static void drm_unmap_frame(AVHWFramesContext *hwfc,
+                            HWMapDescriptor *hwmap)
+{
+    DRMMapping *map = hwmap->priv;
+    int i;
+
+    for (i = 0; i < map->nb_regions; i++)
+        munmap(map->address[i], map->length[i]);
+
+    av_free(map);
+}
+
+static int drm_map_frame(AVHWFramesContext *hwfc,
+                         AVFrame *dst, const AVFrame *src, int flags)
+{
+    const AVDRMFrameDescriptor *desc = (AVDRMFrameDescriptor*)src->data[0];
+    DRMMapping *map;
+    int err, i, p, plane;
+    int mmap_prot;
+    void *addr;
+
+    map = av_mallocz(sizeof(*map));
+    if (!map)
+        return AVERROR(ENOMEM);
+
+    mmap_prot = 0;
+    if (flags & AV_HWFRAME_MAP_READ)
+        mmap_prot |= PROT_READ;
+    if (flags & AV_HWFRAME_MAP_WRITE)
+        mmap_prot |= PROT_WRITE;
+
+    av_assert0(desc->nb_objects <= AV_DRM_MAX_PLANES);
+    for (i = 0; i < desc->nb_objects; i++) {
+        addr = mmap(NULL, desc->objects[i].size, mmap_prot, MAP_SHARED,
+                    desc->objects[i].fd, 0);
+        if (addr == MAP_FAILED) {
+            err = AVERROR(errno);
+            av_log(hwfc, AV_LOG_ERROR, "Failed to map DRM object %d to "
+                   "memory: %d.\n", desc->objects[i].fd, errno);
+            goto fail;
+        }
+
+        map->address[i] = addr;
+        map->length[i]  = desc->objects[i].size;
+    }
+    map->nb_regions = i;
+
+    plane = 0;
+    for (i = 0; i < desc->nb_layers; i++) {
+        const AVDRMLayerDescriptor *layer = &desc->layers[i];
+        for (p = 0; p < layer->nb_planes; p++) {
+            dst->data[plane] =
+                (uint8_t*)map->address[layer->planes[p].object_index] +
+                                       layer->planes[p].offset;
+            dst->linesize[plane] =     layer->planes[p].pitch;
+            ++plane;
+        }
+    }
+    av_assert0(plane <= AV_DRM_MAX_PLANES);
+
+    dst->width  = src->width;
+    dst->height = src->height;
+
+    err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
+                                &drm_unmap_frame, map);
+    if (err < 0)
+        goto fail;
+
+    return 0;
+
+fail:
+    for (i = 0; i < desc->nb_objects; i++) {
+        if (map->address[i])
+            munmap(map->address[i], map->length[i]);
+    }
+    av_free(map);
+    return err;
+}
+
+static int drm_transfer_get_formats(AVHWFramesContext *ctx,
+                                    enum AVHWFrameTransferDirection dir,
+                                    enum AVPixelFormat **formats)
+{
+    enum AVPixelFormat *pix_fmts;
+
+    pix_fmts = av_malloc_array(2, sizeof(*pix_fmts));
+    if (!pix_fmts)
+        return AVERROR(ENOMEM);
+
+    pix_fmts[0] = ctx->sw_format;
+    pix_fmts[1] = AV_PIX_FMT_NONE;
+
+    *formats = pix_fmts;
+    return 0;
+}
+
+static int drm_transfer_data_from(AVHWFramesContext *hwfc,
+                                  AVFrame *dst, const AVFrame *src)
+{
+    AVFrame *map;
+    int err;
+
+    if (dst->width > hwfc->width || dst->height > hwfc->height)
+        return AVERROR(EINVAL);
+
+    map = av_frame_alloc();
+    if (!map)
+        return AVERROR(ENOMEM);
+    map->format = dst->format;
+
+    err = drm_map_frame(hwfc, map, src, AV_HWFRAME_MAP_READ);
+    if (err)
+        goto fail;
+
+    map->width  = dst->width;
+    map->height = dst->height;
+
+    err = av_frame_copy(dst, map);
+    if (err)
+        goto fail;
+
+    err = 0;
+fail:
+    av_frame_free(&map);
+    return err;
+}
+
+static int drm_transfer_data_to(AVHWFramesContext *hwfc,
+                                AVFrame *dst, const AVFrame *src)
+{
+    AVFrame *map;
+    int err;
+
+    if (src->width > hwfc->width || src->height > hwfc->height)
+        return AVERROR(EINVAL);
+
+    map = av_frame_alloc();
+    if (!map)
+        return AVERROR(ENOMEM);
+    map->format = src->format;
+
+    err = drm_map_frame(hwfc, map, dst, AV_HWFRAME_MAP_WRITE |
+                                        AV_HWFRAME_MAP_OVERWRITE);
+    if (err)
+        goto fail;
+
+    map->width  = src->width;
+    map->height = src->height;
+
+    err = av_frame_copy(map, src);
+    if (err)
+        goto fail;
+
+    err = 0;
+fail:
+    av_frame_free(&map);
+    return err;
+}
+
+static int drm_map_from(AVHWFramesContext *hwfc, AVFrame *dst,
+                        const AVFrame *src, int flags)
+{
+    int err;
+
+    if (hwfc->sw_format != dst->format)
+        return AVERROR(ENOSYS);
+
+    err = drm_map_frame(hwfc, dst, src, flags);
+    if (err)
+        return err;
+
+    err = av_frame_copy_props(dst, src);
+    if (err)
+        return err;
+
+    return 0;
+}
+
+const HWContextType ff_hwcontext_type_drm = {
+    .type                   = AV_HWDEVICE_TYPE_DRM,
+    .name                   = "DRM",
+
+    .device_hwctx_size      = sizeof(AVDRMDeviceContext),
+
+    .device_create          = &drm_device_create,
+
+    .frames_get_buffer      = &drm_get_buffer,
+
+    .transfer_get_formats   = &drm_transfer_get_formats,
+    .transfer_data_to       = &drm_transfer_data_to,
+    .transfer_data_from     = &drm_transfer_data_from,
+    .map_from               = &drm_map_from,
+
+    .pix_fmts = (const enum AVPixelFormat[]) {
+        AV_PIX_FMT_DRM_PRIME,
+        AV_PIX_FMT_NONE
+    },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_drm.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_drm.h
new file mode 100644
index 000000000..42709f215
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_drm.h
@@ -0,0 +1,169 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HWCONTEXT_DRM_H
+#define AVUTIL_HWCONTEXT_DRM_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+/**
+ * @file
+ * API-specific header for AV_HWDEVICE_TYPE_DRM.
+ *
+ * Internal frame allocation is not currently supported - all frames
+ * must be allocated by the user.  Thus AVHWFramesContext is always
+ * NULL, though this may change if support for frame allocation is
+ * added in future.
+ */
+
+enum {
+    /**
+     * The maximum number of layers/planes in a DRM frame.
+     */
+    AV_DRM_MAX_PLANES = 4
+};
+
+/**
+ * DRM object descriptor.
+ *
+ * Describes a single DRM object, addressing it as a PRIME file
+ * descriptor.
+ */
+typedef struct AVDRMObjectDescriptor {
+    /**
+     * DRM PRIME fd for the object.
+     */
+    int fd;
+    /**
+     * Total size of the object.
+     *
+     * (This includes any parts not which do not contain image data.)
+     */
+    size_t size;
+    /**
+     * Format modifier applied to the object (DRM_FORMAT_MOD_*).
+     *
+     * If the format modifier is unknown then this should be set to
+     * DRM_FORMAT_MOD_INVALID.
+     */
+    uint64_t format_modifier;
+} AVDRMObjectDescriptor;
+
+/**
+ * DRM plane descriptor.
+ *
+ * Describes a single plane of a layer, which is contained within
+ * a single object.
+ */
+typedef struct AVDRMPlaneDescriptor {
+    /**
+     * Index of the object containing this plane in the objects
+     * array of the enclosing frame descriptor.
+     */
+    int object_index;
+    /**
+     * Offset within that object of this plane.
+     */
+    ptrdiff_t offset;
+    /**
+     * Pitch (linesize) of this plane.
+     */
+    ptrdiff_t pitch;
+} AVDRMPlaneDescriptor;
+
+/**
+ * DRM layer descriptor.
+ *
+ * Describes a single layer within a frame.  This has the structure
+ * defined by its format, and will contain one or more planes.
+ */
+typedef struct AVDRMLayerDescriptor {
+    /**
+     * Format of the layer (DRM_FORMAT_*).
+     */
+    uint32_t format;
+    /**
+     * Number of planes in the layer.
+     *
+     * This must match the number of planes required by format.
+     */
+    int nb_planes;
+    /**
+     * Array of planes in this layer.
+     */
+    AVDRMPlaneDescriptor planes[AV_DRM_MAX_PLANES];
+} AVDRMLayerDescriptor;
+
+/**
+ * DRM frame descriptor.
+ *
+ * This is used as the data pointer for AV_PIX_FMT_DRM_PRIME frames.
+ * It is also used by user-allocated frame pools - allocating in
+ * AVHWFramesContext.pool must return AVBufferRefs which contain
+ * an object of this type.
+ *
+ * The fields of this structure should be set such it can be
+ * imported directly by EGL using the EGL_EXT_image_dma_buf_import
+ * and EGL_EXT_image_dma_buf_import_modifiers extensions.
+ * (Note that the exact layout of a particular format may vary between
+ * platforms - we only specify that the same platform should be able
+ * to import it.)
+ *
+ * The total number of planes must not exceed AV_DRM_MAX_PLANES, and
+ * the order of the planes by increasing layer index followed by
+ * increasing plane index must be the same as the order which would
+ * be used for the data pointers in the equivalent software format.
+ */
+typedef struct AVDRMFrameDescriptor {
+    /**
+     * Number of DRM objects making up this frame.
+     */
+    int nb_objects;
+    /**
+     * Array of objects making up the frame.
+     */
+    AVDRMObjectDescriptor objects[AV_DRM_MAX_PLANES];
+    /**
+     * Number of layers in the frame.
+     */
+    int nb_layers;
+    /**
+     * Array of layers in the frame.
+     */
+    AVDRMLayerDescriptor layers[AV_DRM_MAX_PLANES];
+} AVDRMFrameDescriptor;
+
+/**
+ * DRM device.
+ *
+ * Allocated as AVHWDeviceContext.hwctx.
+ */
+typedef struct AVDRMDeviceContext {
+    /**
+     * File descriptor of DRM device.
+     *
+     * This is used as the device to create frames on, and may also be
+     * used in some derivation and mapping operations.
+     *
+     * If no device is required, set to -1.
+     */
+    int fd;
+} AVDRMDeviceContext;
+
+#endif /* AVUTIL_HWCONTEXT_DRM_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_dxva2.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_dxva2.c
new file mode 100644
index 000000000..64366cea8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_dxva2.c
@@ -0,0 +1,594 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <windows.h>
+
+#define DXVA2API_USE_BITFIELDS
+#define COBJMACROS
+
+#include <d3d9.h>
+#include <dxva2api.h>
+#include <initguid.h>
+
+#include "avassert.h"
+#include "common.h"
+#include "hwcontext.h"
+#include "hwcontext_dxva2.h"
+#include "hwcontext_internal.h"
+#include "imgutils.h"
+#include "pixdesc.h"
+#include "pixfmt.h"
+#include "compat/w32dlfcn.h"
+
+typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT);
+typedef HRESULT WINAPI pDirect3DCreate9Ex(UINT, IDirect3D9Ex **);
+typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);
+
+#define FF_D3DCREATE_FLAGS (D3DCREATE_SOFTWARE_VERTEXPROCESSING | \
+                            D3DCREATE_MULTITHREADED | \
+                            D3DCREATE_FPU_PRESERVE)
+
+static const D3DPRESENT_PARAMETERS dxva2_present_params = {
+    .Windowed         = TRUE,
+    .BackBufferWidth  = 640,
+    .BackBufferHeight = 480,
+    .BackBufferCount  = 0,
+    .SwapEffect       = D3DSWAPEFFECT_DISCARD,
+    .Flags            = D3DPRESENTFLAG_VIDEO,
+};
+
+typedef struct DXVA2Mapping {
+    uint32_t palette_dummy[256];
+} DXVA2Mapping;
+
+typedef struct DXVA2FramesContext {
+    IDirect3DSurface9 **surfaces_internal;
+    int              nb_surfaces_used;
+
+    HANDLE  device_handle;
+    IDirectXVideoAccelerationService *service;
+
+    D3DFORMAT format;
+} DXVA2FramesContext;
+
+typedef struct DXVA2DevicePriv {
+    HMODULE d3dlib;
+    HMODULE dxva2lib;
+
+    HANDLE device_handle;
+
+    IDirect3D9       *d3d9;
+    IDirect3DDevice9 *d3d9device;
+} DXVA2DevicePriv;
+
+static const struct {
+    D3DFORMAT d3d_format;
+    enum AVPixelFormat pix_fmt;
+} supported_formats[] = {
+    { MKTAG('N', 'V', '1', '2'), AV_PIX_FMT_NV12 },
+    { MKTAG('P', '0', '1', '0'), AV_PIX_FMT_P010 },
+    { D3DFMT_P8,                 AV_PIX_FMT_PAL8 },
+};
+
+DEFINE_GUID(video_decoder_service,   0xfc51a551, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
+DEFINE_GUID(video_processor_service, 0xfc51a552, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
+
+static void dxva2_frames_uninit(AVHWFramesContext *ctx)
+{
+    AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
+    AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
+    DXVA2FramesContext *s = ctx->internal->priv;
+    int i;
+
+    if (frames_hwctx->decoder_to_release)
+        IDirectXVideoDecoder_Release(frames_hwctx->decoder_to_release);
+
+    if (s->surfaces_internal) {
+        for (i = 0; i < frames_hwctx->nb_surfaces; i++) {
+            if (s->surfaces_internal[i])
+                IDirect3DSurface9_Release(s->surfaces_internal[i]);
+        }
+    }
+    av_freep(&s->surfaces_internal);
+
+    if (s->service) {
+        IDirectXVideoAccelerationService_Release(s->service);
+        s->service = NULL;
+    }
+
+    if (s->device_handle != INVALID_HANDLE_VALUE) {
+        IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, s->device_handle);
+        s->device_handle = INVALID_HANDLE_VALUE;
+    }
+}
+
+static void dxva2_pool_release_dummy(void *opaque, uint8_t *data)
+{
+    // important not to free anything here--data is a surface object
+    // associated with the call to CreateSurface(), and these surfaces are
+    // released in dxva2_frames_uninit()
+}
+
+static AVBufferRef *dxva2_pool_alloc(void *opaque, int size)
+{
+    AVHWFramesContext      *ctx = (AVHWFramesContext*)opaque;
+    DXVA2FramesContext       *s = ctx->internal->priv;
+    AVDXVA2FramesContext *hwctx = ctx->hwctx;
+
+    if (s->nb_surfaces_used < hwctx->nb_surfaces) {
+        s->nb_surfaces_used++;
+        return av_buffer_create((uint8_t*)s->surfaces_internal[s->nb_surfaces_used - 1],
+                                sizeof(*hwctx->surfaces), dxva2_pool_release_dummy, 0, 0);
+    }
+
+    return NULL;
+}
+
+static int dxva2_init_pool(AVHWFramesContext *ctx)
+{
+    AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
+    AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
+    DXVA2FramesContext              *s = ctx->internal->priv;
+    int decode = (frames_hwctx->surface_type == DXVA2_VideoDecoderRenderTarget);
+
+    int i;
+    HRESULT hr;
+
+    if (ctx->initial_pool_size <= 0)
+        return 0;
+
+    hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &s->device_handle);
+    if (FAILED(hr)) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr,
+                                                 s->device_handle,
+                                                 decode ? &video_decoder_service : &video_processor_service,
+                                                 (void **)&s->service);
+    if (FAILED(hr)) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to create the video service\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
+        if (ctx->sw_format == supported_formats[i].pix_fmt) {
+            s->format = supported_formats[i].d3d_format;
+            break;
+        }
+    }
+    if (i == FF_ARRAY_ELEMS(supported_formats)) {
+        av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
+               av_get_pix_fmt_name(ctx->sw_format));
+        return AVERROR(EINVAL);
+    }
+
+    s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
+                                            sizeof(*s->surfaces_internal));
+    if (!s->surfaces_internal)
+        return AVERROR(ENOMEM);
+
+    hr = IDirectXVideoAccelerationService_CreateSurface(s->service,
+                                                        ctx->width, ctx->height,
+                                                        ctx->initial_pool_size - 1,
+                                                        s->format, D3DPOOL_DEFAULT, 0,
+                                                        frames_hwctx->surface_type,
+                                                        s->surfaces_internal, NULL);
+    if (FAILED(hr)) {
+        av_log(ctx, AV_LOG_ERROR, "Could not create the surfaces\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(*s->surfaces_internal),
+                                                        ctx, dxva2_pool_alloc, NULL);
+    if (!ctx->internal->pool_internal)
+        return AVERROR(ENOMEM);
+
+    frames_hwctx->surfaces    = s->surfaces_internal;
+    frames_hwctx->nb_surfaces = ctx->initial_pool_size;
+
+    return 0;
+}
+
+static int dxva2_frames_init(AVHWFramesContext *ctx)
+{
+    AVDXVA2FramesContext *hwctx = ctx->hwctx;
+    DXVA2FramesContext       *s = ctx->internal->priv;
+    int ret;
+
+    if (hwctx->surface_type != DXVA2_VideoDecoderRenderTarget &&
+        hwctx->surface_type != DXVA2_VideoProcessorRenderTarget) {
+        av_log(ctx, AV_LOG_ERROR, "Unknown surface type: %lu\n",
+               hwctx->surface_type);
+        return AVERROR(EINVAL);
+    }
+
+    s->device_handle = INVALID_HANDLE_VALUE;
+
+    /* init the frame pool if the caller didn't provide one */
+    if (!ctx->pool) {
+        ret = dxva2_init_pool(ctx);
+        if (ret < 0) {
+            av_log(ctx, AV_LOG_ERROR, "Error creating an internal frame pool\n");
+            return ret;
+        }
+    }
+
+    return 0;
+}
+
+static int dxva2_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
+{
+    frame->buf[0] = av_buffer_pool_get(ctx->pool);
+    if (!frame->buf[0])
+        return AVERROR(ENOMEM);
+
+    frame->data[3] = frame->buf[0]->data;
+    frame->format  = AV_PIX_FMT_DXVA2_VLD;
+    frame->width   = ctx->width;
+    frame->height  = ctx->height;
+
+    return 0;
+}
+
+static int dxva2_transfer_get_formats(AVHWFramesContext *ctx,
+                                      enum AVHWFrameTransferDirection dir,
+                                      enum AVPixelFormat **formats)
+{
+    enum AVPixelFormat *fmts;
+
+    fmts = av_malloc_array(2, sizeof(*fmts));
+    if (!fmts)
+        return AVERROR(ENOMEM);
+
+    fmts[0] = ctx->sw_format;
+    fmts[1] = AV_PIX_FMT_NONE;
+
+    *formats = fmts;
+
+    return 0;
+}
+
+static void dxva2_unmap_frame(AVHWFramesContext *ctx, HWMapDescriptor *hwmap)
+{
+    IDirect3DSurface9 *surface = (IDirect3DSurface9*)hwmap->source->data[3];
+    IDirect3DSurface9_UnlockRect(surface);
+    av_freep(&hwmap->priv);
+}
+
+static int dxva2_map_frame(AVHWFramesContext *ctx, AVFrame *dst, const AVFrame *src,
+                           int flags)
+{
+    IDirect3DSurface9 *surface = (IDirect3DSurface9*)src->data[3];
+    DXVA2Mapping      *map;
+    D3DSURFACE_DESC    surfaceDesc;
+    D3DLOCKED_RECT     LockedRect;
+    HRESULT            hr;
+    int i, err, nb_planes;
+    int lock_flags = 0;
+
+    nb_planes = av_pix_fmt_count_planes(dst->format);
+
+    hr = IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
+    if (FAILED(hr)) {
+        av_log(ctx, AV_LOG_ERROR, "Error getting a surface description\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    if (!(flags & AV_HWFRAME_MAP_WRITE))
+        lock_flags |= D3DLOCK_READONLY;
+    if (flags & AV_HWFRAME_MAP_OVERWRITE)
+        lock_flags |= D3DLOCK_DISCARD;
+
+    hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL, lock_flags);
+    if (FAILED(hr)) {
+        av_log(ctx, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    map = av_mallocz(sizeof(*map));
+    if (!map) {
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
+                                dxva2_unmap_frame, map);
+    if (err < 0) {
+        av_freep(&map);
+        goto fail;
+    }
+
+    for (i = 0; i < nb_planes; i++)
+        dst->linesize[i] = LockedRect.Pitch;
+
+    av_image_fill_pointers(dst->data, dst->format, surfaceDesc.Height,
+                           (uint8_t*)LockedRect.pBits, dst->linesize);
+
+    if (dst->format == AV_PIX_FMT_PAL8)
+        dst->data[1] = (uint8_t*)map->palette_dummy;
+
+    return 0;
+fail:
+    IDirect3DSurface9_UnlockRect(surface);
+    return err;
+}
+
+static int dxva2_transfer_data_to(AVHWFramesContext *ctx, AVFrame *dst,
+                                  const AVFrame *src)
+{
+    AVFrame *map;
+    int ret;
+
+    if (src->format != ctx->sw_format)
+        return AVERROR(ENOSYS);
+
+    map = av_frame_alloc();
+    if (!map)
+        return AVERROR(ENOMEM);
+    map->format = dst->format;
+
+    ret = dxva2_map_frame(ctx, map, dst, AV_HWFRAME_MAP_WRITE | AV_HWFRAME_MAP_OVERWRITE);
+    if (ret < 0)
+        goto fail;
+
+    av_image_copy(map->data, map->linesize, (const uint8_t **)src->data, src->linesize,
+                  ctx->sw_format, src->width, src->height);
+
+fail:
+    av_frame_free(&map);
+    return ret;
+}
+
+static int dxva2_transfer_data_from(AVHWFramesContext *ctx, AVFrame *dst,
+                                    const AVFrame *src)
+{
+    AVFrame *map;
+    ptrdiff_t src_linesize[4], dst_linesize[4];
+    int ret, i;
+
+    if (dst->format != ctx->sw_format)
+        return AVERROR(ENOSYS);
+
+    map = av_frame_alloc();
+    if (!map)
+        return AVERROR(ENOMEM);
+    map->format = dst->format;
+
+    ret = dxva2_map_frame(ctx, map, src, AV_HWFRAME_MAP_READ);
+    if (ret < 0)
+        goto fail;
+
+    for (i = 0; i < 4; i++) {
+        dst_linesize[i] = dst->linesize[i];
+        src_linesize[i] = map->linesize[i];
+    }
+    av_image_copy_uc_from(dst->data, dst_linesize, (const uint8_t **)map->data, src_linesize,
+                          ctx->sw_format, src->width, src->height);
+fail:
+    av_frame_free(&map);
+    return ret;
+}
+
+static int dxva2_map_from(AVHWFramesContext *ctx,
+                          AVFrame *dst, const AVFrame *src, int flags)
+{
+    int err;
+
+    if (dst->format != AV_PIX_FMT_NONE && dst->format != ctx->sw_format)
+        return AVERROR(ENOSYS);
+    dst->format = ctx->sw_format;
+
+    err = dxva2_map_frame(ctx, dst, src, flags);
+    if (err < 0)
+        return err;
+
+    err = av_frame_copy_props(dst, src);
+    if (err < 0)
+        return err;
+
+    return 0;
+}
+
+static void dxva2_device_free(AVHWDeviceContext *ctx)
+{
+    AVDXVA2DeviceContext *hwctx = ctx->hwctx;
+    DXVA2DevicePriv       *priv = ctx->user_opaque;
+
+    if (hwctx->devmgr && priv->device_handle != INVALID_HANDLE_VALUE)
+        IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->device_handle);
+
+    if (hwctx->devmgr)
+        IDirect3DDeviceManager9_Release(hwctx->devmgr);
+
+    if (priv->d3d9device)
+        IDirect3DDevice9_Release(priv->d3d9device);
+
+    if (priv->d3d9)
+        IDirect3D9_Release(priv->d3d9);
+
+    if (priv->d3dlib)
+        dlclose(priv->d3dlib);
+
+    if (priv->dxva2lib)
+        dlclose(priv->dxva2lib);
+
+    av_freep(&ctx->user_opaque);
+}
+
+static int dxva2_device_create9(AVHWDeviceContext *ctx, UINT adapter)
+{
+    DXVA2DevicePriv *priv = ctx->user_opaque;
+    D3DPRESENT_PARAMETERS d3dpp = dxva2_present_params;
+    D3DDISPLAYMODE d3ddm;
+    HRESULT hr;
+    pDirect3DCreate9 *createD3D = (pDirect3DCreate9 *)dlsym(priv->d3dlib, "Direct3DCreate9");
+    if (!createD3D) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to locate Direct3DCreate9\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    priv->d3d9 = createD3D(D3D_SDK_VERSION);
+    if (!priv->d3d9) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to create IDirect3D object\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    IDirect3D9_GetAdapterDisplayMode(priv->d3d9, adapter, &d3ddm);
+
+    d3dpp.BackBufferFormat = d3ddm.Format;
+
+    hr = IDirect3D9_CreateDevice(priv->d3d9, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
+                                 FF_D3DCREATE_FLAGS,
+                                 &d3dpp, &priv->d3d9device);
+    if (FAILED(hr)) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+
+static int dxva2_device_create9ex(AVHWDeviceContext *ctx, UINT adapter)
+{
+    DXVA2DevicePriv *priv = ctx->user_opaque;
+    D3DPRESENT_PARAMETERS d3dpp = dxva2_present_params;
+    D3DDISPLAYMODEEX modeex = {0};
+    IDirect3D9Ex *d3d9ex = NULL;
+    IDirect3DDevice9Ex *exdev = NULL;
+    HRESULT hr;
+    pDirect3DCreate9Ex *createD3DEx = (pDirect3DCreate9Ex *)dlsym(priv->d3dlib, "Direct3DCreate9Ex");
+    if (!createD3DEx)
+        return AVERROR(ENOSYS);
+
+    hr = createD3DEx(D3D_SDK_VERSION, &d3d9ex);
+    if (FAILED(hr))
+        return AVERROR_UNKNOWN;
+
+    modeex.Size = sizeof(D3DDISPLAYMODEEX);
+    hr = IDirect3D9Ex_GetAdapterDisplayModeEx(d3d9ex, adapter, &modeex, NULL);
+    if (FAILED(hr)) {
+        IDirect3D9Ex_Release(d3d9ex);
+        return AVERROR_UNKNOWN;
+    }
+
+    d3dpp.BackBufferFormat = modeex.Format;
+
+    hr = IDirect3D9Ex_CreateDeviceEx(d3d9ex, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
+                                     FF_D3DCREATE_FLAGS,
+                                     &d3dpp, NULL, &exdev);
+    if (FAILED(hr)) {
+        IDirect3D9Ex_Release(d3d9ex);
+        return AVERROR_UNKNOWN;
+    }
+
+    av_log(ctx, AV_LOG_VERBOSE, "Using D3D9Ex device.\n");
+    priv->d3d9 = (IDirect3D9 *)d3d9ex;
+    priv->d3d9device = (IDirect3DDevice9 *)exdev;
+    return 0;
+}
+
+static int dxva2_device_create(AVHWDeviceContext *ctx, const char *device,
+                               AVDictionary *opts, int flags)
+{
+    AVDXVA2DeviceContext *hwctx = ctx->hwctx;
+    DXVA2DevicePriv *priv;
+    pCreateDeviceManager9 *createDeviceManager = NULL;
+    unsigned resetToken = 0;
+    UINT adapter = D3DADAPTER_DEFAULT;
+    HRESULT hr;
+    int err;
+
+    if (device)
+        adapter = atoi(device);
+
+    priv = av_mallocz(sizeof(*priv));
+    if (!priv)
+        return AVERROR(ENOMEM);
+
+    ctx->user_opaque = priv;
+    ctx->free        = dxva2_device_free;
+
+    priv->device_handle = INVALID_HANDLE_VALUE;
+
+    priv->d3dlib = dlopen("d3d9.dll", 0);
+    if (!priv->d3dlib) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to load D3D9 library\n");
+        return AVERROR_UNKNOWN;
+    }
+    priv->dxva2lib = dlopen("dxva2.dll", 0);
+    if (!priv->dxva2lib) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to load DXVA2 library\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    createDeviceManager = (pCreateDeviceManager9 *)dlsym(priv->dxva2lib,
+                                                         "DXVA2CreateDirect3DDeviceManager9");
+    if (!createDeviceManager) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    if (dxva2_device_create9ex(ctx, adapter) < 0) {
+        // Retry with "classic" d3d9
+        err = dxva2_device_create9(ctx, adapter);
+        if (err < 0)
+            return err;
+    }
+
+    hr = createDeviceManager(&resetToken, &hwctx->devmgr);
+    if (FAILED(hr)) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device manager\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    hr = IDirect3DDeviceManager9_ResetDevice(hwctx->devmgr, priv->d3d9device, resetToken);
+    if (FAILED(hr)) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to bind Direct3D device to device manager\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    hr = IDirect3DDeviceManager9_OpenDeviceHandle(hwctx->devmgr, &priv->device_handle);
+    if (FAILED(hr)) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+
+const HWContextType ff_hwcontext_type_dxva2 = {
+    .type                 = AV_HWDEVICE_TYPE_DXVA2,
+    .name                 = "DXVA2",
+
+    .device_hwctx_size    = sizeof(AVDXVA2DeviceContext),
+    .frames_hwctx_size    = sizeof(AVDXVA2FramesContext),
+    .frames_priv_size     = sizeof(DXVA2FramesContext),
+
+    .device_create        = dxva2_device_create,
+    .frames_init          = dxva2_frames_init,
+    .frames_uninit        = dxva2_frames_uninit,
+    .frames_get_buffer    = dxva2_get_buffer,
+    .transfer_get_formats = dxva2_transfer_get_formats,
+    .transfer_data_to     = dxva2_transfer_data_to,
+    .transfer_data_from   = dxva2_transfer_data_from,
+    .map_from             = dxva2_map_from,
+
+    .pix_fmts             = (const enum AVPixelFormat[]){ AV_PIX_FMT_DXVA2_VLD, AV_PIX_FMT_NONE },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_dxva2.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_dxva2.h
new file mode 100644
index 000000000..e1b79bc0d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_dxva2.h
@@ -0,0 +1,75 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+#ifndef AVUTIL_HWCONTEXT_DXVA2_H
+#define AVUTIL_HWCONTEXT_DXVA2_H
+
+/**
+ * @file
+ * An API-specific header for AV_HWDEVICE_TYPE_DXVA2.
+ *
+ * Only fixed-size pools are supported.
+ *
+ * For user-allocated pools, AVHWFramesContext.pool must return AVBufferRefs
+ * with the data pointer set to a pointer to IDirect3DSurface9.
+ */
+
+#include <d3d9.h>
+#include <dxva2api.h>
+
+/**
+ * This struct is allocated as AVHWDeviceContext.hwctx
+ */
+typedef struct AVDXVA2DeviceContext {
+    IDirect3DDeviceManager9 *devmgr;
+} AVDXVA2DeviceContext;
+
+/**
+ * This struct is allocated as AVHWFramesContext.hwctx
+ */
+typedef struct AVDXVA2FramesContext {
+    /**
+     * The surface type (e.g. DXVA2_VideoProcessorRenderTarget or
+     * DXVA2_VideoDecoderRenderTarget). Must be set by the caller.
+     */
+    DWORD               surface_type;
+
+    /**
+     * The surface pool. When an external pool is not provided by the caller,
+     * this will be managed (allocated and filled on init, freed on uninit) by
+     * libavutil.
+     */
+    IDirect3DSurface9 **surfaces;
+    int              nb_surfaces;
+
+    /**
+     * Certain drivers require the decoder to be destroyed before the surfaces.
+     * To allow internally managed pools to work properly in such cases, this
+     * field is provided.
+     *
+     * If it is non-NULL, libavutil will call IDirectXVideoDecoder_Release() on
+     * it just before the internal surface pool is freed.
+     *
+     * This is for convenience only. Some code uses other methods to manage the
+     * decoder reference.
+     */
+    IDirectXVideoDecoder *decoder_to_release;
+} AVDXVA2FramesContext;
+
+#endif /* AVUTIL_HWCONTEXT_DXVA2_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_internal.h
new file mode 100644
index 000000000..77dc47ddd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_internal.h
@@ -0,0 +1,176 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HWCONTEXT_INTERNAL_H
+#define AVUTIL_HWCONTEXT_INTERNAL_H
+
+#include <stddef.h>
+
+#include "buffer.h"
+#include "hwcontext.h"
+#include "frame.h"
+#include "pixfmt.h"
+
+typedef struct HWContextType {
+    enum AVHWDeviceType type;
+    const char         *name;
+
+    /**
+     * An array of pixel formats supported by the AVHWFramesContext instances
+     * Terminated by AV_PIX_FMT_NONE.
+     */
+    const enum AVPixelFormat *pix_fmts;
+
+    /**
+     * size of the public hardware-specific context,
+     * i.e. AVHWDeviceContext.hwctx
+     */
+    size_t             device_hwctx_size;
+    /**
+     * size of the private data, i.e.
+     * AVHWDeviceInternal.priv
+     */
+    size_t             device_priv_size;
+
+    /**
+     * Size of the hardware-specific device configuration.
+     * (Used to query hwframe constraints.)
+     */
+    size_t             device_hwconfig_size;
+
+    /**
+     * size of the public frame pool hardware-specific context,
+     * i.e. AVHWFramesContext.hwctx
+     */
+    size_t             frames_hwctx_size;
+    /**
+     * size of the private data, i.e.
+     * AVHWFramesInternal.priv
+     */
+    size_t             frames_priv_size;
+
+    int              (*device_create)(AVHWDeviceContext *ctx, const char *device,
+                                      AVDictionary *opts, int flags);
+    int              (*device_derive)(AVHWDeviceContext *dst_ctx,
+                                      AVHWDeviceContext *src_ctx, int flags);
+
+    int              (*device_init)(AVHWDeviceContext *ctx);
+    void             (*device_uninit)(AVHWDeviceContext *ctx);
+
+    int              (*frames_get_constraints)(AVHWDeviceContext *ctx,
+                                               const void *hwconfig,
+                                               AVHWFramesConstraints *constraints);
+
+    int              (*frames_init)(AVHWFramesContext *ctx);
+    void             (*frames_uninit)(AVHWFramesContext *ctx);
+
+    int              (*frames_get_buffer)(AVHWFramesContext *ctx, AVFrame *frame);
+    int              (*transfer_get_formats)(AVHWFramesContext *ctx,
+                                             enum AVHWFrameTransferDirection dir,
+                                             enum AVPixelFormat **formats);
+    int              (*transfer_data_to)(AVHWFramesContext *ctx, AVFrame *dst,
+                                         const AVFrame *src);
+    int              (*transfer_data_from)(AVHWFramesContext *ctx, AVFrame *dst,
+                                           const AVFrame *src);
+
+    int              (*map_to)(AVHWFramesContext *ctx, AVFrame *dst,
+                               const AVFrame *src, int flags);
+    int              (*map_from)(AVHWFramesContext *ctx, AVFrame *dst,
+                                 const AVFrame *src, int flags);
+
+    int              (*frames_derive_to)(AVHWFramesContext *dst_ctx,
+                                         AVHWFramesContext *src_ctx, int flags);
+    int              (*frames_derive_from)(AVHWFramesContext *dst_ctx,
+                                           AVHWFramesContext *src_ctx, int flags);
+} HWContextType;
+
+struct AVHWDeviceInternal {
+    const HWContextType *hw_type;
+    void                *priv;
+
+    /**
+     * For a derived device, a reference to the original device
+     * context it was derived from.
+     */
+    AVBufferRef *source_device;
+};
+
+struct AVHWFramesInternal {
+    const HWContextType *hw_type;
+    void                *priv;
+
+    AVBufferPool *pool_internal;
+
+    /**
+     * For a derived context, a reference to the original frames
+     * context it was derived from.
+     */
+    AVBufferRef *source_frames;
+    /**
+     * Flags to apply to the mapping from the source to the derived
+     * frame context when trying to allocate in the derived context.
+     */
+    int source_allocation_map_flags;
+};
+
+typedef struct HWMapDescriptor {
+    /**
+     * A reference to the original source of the mapping.
+     */
+    AVFrame *source;
+    /**
+     * A reference to the hardware frames context in which this
+     * mapping was made.  May be the same as source->hw_frames_ctx,
+     * but need not be.
+     */
+    AVBufferRef *hw_frames_ctx;
+    /**
+     * Unmap function.
+     */
+    void (*unmap)(AVHWFramesContext *ctx,
+                  struct HWMapDescriptor *hwmap);
+    /**
+     * Hardware-specific private data associated with the mapping.
+     */
+    void          *priv;
+} HWMapDescriptor;
+
+int ff_hwframe_map_create(AVBufferRef *hwframe_ref,
+                          AVFrame *dst, const AVFrame *src,
+                          void (*unmap)(AVHWFramesContext *ctx,
+                                        HWMapDescriptor *hwmap),
+                          void *priv);
+
+/**
+ * Replace the current hwmap of dst with the one from src, used for indirect
+ * mappings like VAAPI->(DRM)->OpenCL/Vulkan where a direct interop is missing
+ */
+int ff_hwframe_map_replace(AVFrame *dst, const AVFrame *src);
+
+extern const HWContextType ff_hwcontext_type_cuda;
+extern const HWContextType ff_hwcontext_type_d3d11va;
+extern const HWContextType ff_hwcontext_type_drm;
+extern const HWContextType ff_hwcontext_type_dxva2;
+extern const HWContextType ff_hwcontext_type_opencl;
+extern const HWContextType ff_hwcontext_type_qsv;
+extern const HWContextType ff_hwcontext_type_vaapi;
+extern const HWContextType ff_hwcontext_type_vdpau;
+extern const HWContextType ff_hwcontext_type_videotoolbox;
+extern const HWContextType ff_hwcontext_type_mediacodec;
+
+#endif /* AVUTIL_HWCONTEXT_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_mediacodec.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_mediacodec.c
new file mode 100644
index 000000000..b0d8993e1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_mediacodec.c
@@ -0,0 +1,50 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "buffer.h"
+#include "common.h"
+#include "hwcontext.h"
+#include "hwcontext_internal.h"
+#include "hwcontext_mediacodec.h"
+
+static int mc_device_create(AVHWDeviceContext *ctx, const char *device,
+                            AVDictionary *opts, int flags)
+{
+    if (device && device[0]) {
+        av_log(ctx, AV_LOG_ERROR, "Device selection unsupported.\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+
+const HWContextType ff_hwcontext_type_mediacodec = {
+    .type                 = AV_HWDEVICE_TYPE_MEDIACODEC,
+    .name                 = "mediacodec",
+
+    .device_hwctx_size    = sizeof(AVMediaCodecDeviceContext),
+
+    .device_create        = mc_device_create,
+
+    .pix_fmts = (const enum AVPixelFormat[]){
+        AV_PIX_FMT_MEDIACODEC,
+        AV_PIX_FMT_NONE
+    },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_mediacodec.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_mediacodec.h
new file mode 100644
index 000000000..101a9806d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_mediacodec.h
@@ -0,0 +1,36 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HWCONTEXT_MEDIACODEC_H
+#define AVUTIL_HWCONTEXT_MEDIACODEC_H
+
+/**
+ * MediaCodec details.
+ *
+ * Allocated as AVHWDeviceContext.hwctx
+ */
+typedef struct AVMediaCodecDeviceContext {
+    /**
+     * android/view/Surface handle, to be filled by the user.
+     *
+     * This is the default surface used by decoders on this device.
+     */
+    void *surface;
+} AVMediaCodecDeviceContext;
+
+#endif /* AVUTIL_HWCONTEXT_MEDIACODEC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_opencl.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_opencl.c
new file mode 100644
index 000000000..41fdfe96f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_opencl.c
@@ -0,0 +1,2942 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define CL_USE_DEPRECATED_OPENCL_1_2_APIS
+
+#include <string.h>
+
+#include "config.h"
+
+#include "avassert.h"
+#include "avstring.h"
+#include "common.h"
+#include "hwcontext.h"
+#include "hwcontext_internal.h"
+#include "hwcontext_opencl.h"
+#include "mem.h"
+#include "pixdesc.h"
+
+#if HAVE_OPENCL_VAAPI_BEIGNET
+#include <unistd.h>
+#include <va/va.h>
+#include <va/va_drmcommon.h>
+#include <CL/cl_intel.h>
+#include "hwcontext_vaapi.h"
+#endif
+
+#if HAVE_OPENCL_DRM_BEIGNET
+#include <unistd.h>
+#include <CL/cl_intel.h>
+#include "hwcontext_drm.h"
+#endif
+
+#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
+#if CONFIG_LIBMFX
+#include <mfx/mfxstructures.h>
+#endif
+#include <va/va.h>
+#include <CL/cl_va_api_media_sharing_intel.h>
+#include "hwcontext_vaapi.h"
+#endif
+
+#if HAVE_OPENCL_DXVA2
+#define COBJMACROS
+#include <CL/cl_dx9_media_sharing.h>
+#include <dxva2api.h>
+#include "hwcontext_dxva2.h"
+#endif
+
+#if HAVE_OPENCL_D3D11
+#include <CL/cl_d3d11.h>
+#include "hwcontext_d3d11va.h"
+#endif
+
+#if HAVE_OPENCL_DRM_ARM
+#include <CL/cl_ext.h>
+#include <drm_fourcc.h>
+#include "hwcontext_drm.h"
+#endif
+
+
+typedef struct OpenCLDeviceContext {
+    // Default command queue to use for transfer/mapping operations on
+    // the device.  If the user supplies one, this is a reference to it.
+    // Otherwise, it is newly-created.
+    cl_command_queue command_queue;
+
+    // The platform the context exists on.  This is needed to query and
+    // retrieve extension functions.
+    cl_platform_id platform_id;
+
+    // Platform/device-specific functions.
+#if HAVE_OPENCL_DRM_BEIGNET
+    int beignet_drm_mapping_usable;
+    clCreateImageFromFdINTEL_fn clCreateImageFromFdINTEL;
+#endif
+
+#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
+    int qsv_mapping_usable;
+    clCreateFromVA_APIMediaSurfaceINTEL_fn
+        clCreateFromVA_APIMediaSurfaceINTEL;
+    clEnqueueAcquireVA_APIMediaSurfacesINTEL_fn
+        clEnqueueAcquireVA_APIMediaSurfacesINTEL;
+    clEnqueueReleaseVA_APIMediaSurfacesINTEL_fn
+        clEnqueueReleaseVA_APIMediaSurfacesINTEL;
+#endif
+
+#if HAVE_OPENCL_DXVA2
+    int dxva2_mapping_usable;
+    cl_dx9_media_adapter_type_khr dx9_media_adapter_type;
+
+    clCreateFromDX9MediaSurfaceKHR_fn
+        clCreateFromDX9MediaSurfaceKHR;
+    clEnqueueAcquireDX9MediaSurfacesKHR_fn
+        clEnqueueAcquireDX9MediaSurfacesKHR;
+    clEnqueueReleaseDX9MediaSurfacesKHR_fn
+        clEnqueueReleaseDX9MediaSurfacesKHR;
+#endif
+
+#if HAVE_OPENCL_D3D11
+    int d3d11_mapping_usable;
+    clCreateFromD3D11Texture2DKHR_fn
+        clCreateFromD3D11Texture2DKHR;
+    clEnqueueAcquireD3D11ObjectsKHR_fn
+        clEnqueueAcquireD3D11ObjectsKHR;
+    clEnqueueReleaseD3D11ObjectsKHR_fn
+        clEnqueueReleaseD3D11ObjectsKHR;
+#endif
+
+#if HAVE_OPENCL_DRM_ARM
+    int drm_arm_mapping_usable;
+#endif
+} OpenCLDeviceContext;
+
+typedef struct OpenCLFramesContext {
+    // Command queue used for transfer/mapping operations on this frames
+    // context.  If the user supplies one, this is a reference to it.
+    // Otherwise, it is a reference to the default command queue for the
+    // device.
+    cl_command_queue command_queue;
+
+#if HAVE_OPENCL_DXVA2 || HAVE_OPENCL_D3D11
+    // For mapping APIs which have separate creation and acquire/release
+    // steps, this stores the OpenCL memory objects corresponding to each
+    // frame.
+    int                   nb_mapped_frames;
+    AVOpenCLFrameDescriptor *mapped_frames;
+#endif
+} OpenCLFramesContext;
+
+
+static void CL_CALLBACK opencl_error_callback(const char *errinfo,
+                                              const void *private_info,
+                                              size_t cb,
+                                              void *user_data)
+{
+    AVHWDeviceContext *ctx = user_data;
+    av_log(ctx, AV_LOG_ERROR, "OpenCL error: %s\n", errinfo);
+}
+
+static void opencl_device_free(AVHWDeviceContext *hwdev)
+{
+    AVOpenCLDeviceContext *hwctx = hwdev->hwctx;
+    cl_int cle;
+
+    cle = clReleaseContext(hwctx->context);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to release OpenCL "
+               "context: %d.\n", cle);
+    }
+}
+
+static struct {
+    const char *key;
+    cl_platform_info name;
+} opencl_platform_params[] = {
+    { "platform_profile",    CL_PLATFORM_PROFILE    },
+    { "platform_version",    CL_PLATFORM_VERSION    },
+    { "platform_name",       CL_PLATFORM_NAME       },
+    { "platform_vendor",     CL_PLATFORM_VENDOR     },
+    { "platform_extensions", CL_PLATFORM_EXTENSIONS },
+};
+
+static struct {
+    const char *key;
+    cl_device_info name;
+} opencl_device_params[] = {
+    { "device_name",         CL_DEVICE_NAME         },
+    { "device_vendor",       CL_DEVICE_VENDOR       },
+    { "driver_version",      CL_DRIVER_VERSION      },
+    { "device_version",      CL_DEVICE_VERSION      },
+    { "device_profile",      CL_DEVICE_PROFILE      },
+    { "device_extensions",   CL_DEVICE_EXTENSIONS   },
+};
+
+static struct {
+    const char *key;
+    cl_device_type type;
+} opencl_device_types[] = {
+    { "cpu",         CL_DEVICE_TYPE_CPU         },
+    { "gpu",         CL_DEVICE_TYPE_GPU         },
+    { "accelerator", CL_DEVICE_TYPE_ACCELERATOR },
+    { "custom",      CL_DEVICE_TYPE_CUSTOM      },
+    { "default",     CL_DEVICE_TYPE_DEFAULT     },
+    { "all",         CL_DEVICE_TYPE_ALL         },
+};
+
+static char *opencl_get_platform_string(cl_platform_id platform_id,
+                                        cl_platform_info key)
+{
+    char *str;
+    size_t size;
+    cl_int cle;
+    cle = clGetPlatformInfo(platform_id, key, 0, NULL, &size);
+    if (cle != CL_SUCCESS)
+        return NULL;
+    str = av_malloc(size);
+    if (!str)
+        return NULL;
+    cle = clGetPlatformInfo(platform_id, key, size, str, &size);
+    if (cle != CL_SUCCESS) {
+        av_free(str);
+        return NULL;
+    }
+    av_assert0(strlen(str) + 1 == size);
+    return str;
+}
+
+static char *opencl_get_device_string(cl_device_id device_id,
+                                      cl_device_info key)
+{
+    char *str;
+    size_t size;
+    cl_int cle;
+    cle = clGetDeviceInfo(device_id, key, 0, NULL, &size);
+    if (cle != CL_SUCCESS)
+        return NULL;
+    str = av_malloc(size);
+    if (!str)
+        return NULL;
+    cle = clGetDeviceInfo(device_id, key, size, str, &size);
+    if (cle != CL_SUCCESS) {
+        av_free(str);
+        return NULL;
+    }
+    av_assert0(strlen(str) + 1== size);
+    return str;
+}
+
+static int opencl_check_platform_extension(cl_platform_id platform_id,
+                                           const char *name)
+{
+    char *str;
+    int found = 0;
+    str = opencl_get_platform_string(platform_id,
+                                     CL_PLATFORM_EXTENSIONS);
+    if (str && strstr(str, name))
+        found = 1;
+    av_free(str);
+    return found;
+}
+
+static int opencl_check_device_extension(cl_device_id device_id,
+                                         const char *name)
+{
+    char *str;
+    int found = 0;
+    str = opencl_get_device_string(device_id,
+                                   CL_DEVICE_EXTENSIONS);
+    if (str && strstr(str, name))
+        found = 1;
+    av_free(str);
+    return found;
+}
+
+static av_unused int opencl_check_extension(AVHWDeviceContext *hwdev,
+                                            const char *name)
+{
+    AVOpenCLDeviceContext *hwctx = hwdev->hwctx;
+    OpenCLDeviceContext    *priv = hwdev->internal->priv;
+
+    if (opencl_check_platform_extension(priv->platform_id, name)) {
+        av_log(hwdev, AV_LOG_DEBUG,
+               "%s found as platform extension.\n", name);
+        return 1;
+    }
+
+    if (opencl_check_device_extension(hwctx->device_id, name)) {
+        av_log(hwdev, AV_LOG_DEBUG,
+               "%s found as device extension.\n", name);
+        return 1;
+    }
+
+    return 0;
+}
+
+static int opencl_enumerate_platforms(AVHWDeviceContext *hwdev,
+                                      cl_uint *nb_platforms,
+                                      cl_platform_id **platforms,
+                                      void *context)
+{
+    cl_int cle;
+
+    cle = clGetPlatformIDs(0, NULL, nb_platforms);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get number of "
+               "OpenCL platforms: %d.\n", cle);
+        return AVERROR(ENODEV);
+    }
+    av_log(hwdev, AV_LOG_DEBUG, "%u OpenCL platforms found.\n",
+           *nb_platforms);
+
+    *platforms = av_malloc_array(*nb_platforms, sizeof(**platforms));
+    if (!*platforms)
+        return AVERROR(ENOMEM);
+
+    cle = clGetPlatformIDs(*nb_platforms, *platforms, NULL);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get list of OpenCL "
+               "platforms: %d.\n", cle);
+        av_freep(platforms);
+        return AVERROR(ENODEV);
+    }
+
+    return 0;
+}
+
+static int opencl_filter_platform(AVHWDeviceContext *hwdev,
+                                  cl_platform_id platform_id,
+                                  const char *platform_name,
+                                  void *context)
+{
+    AVDictionary *opts = context;
+    const AVDictionaryEntry *param;
+    char *str;
+    int i, ret = 0;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(opencl_platform_params); i++) {
+        param = av_dict_get(opts, opencl_platform_params[i].key,
+                            NULL, 0);
+        if (!param)
+            continue;
+
+        str = opencl_get_platform_string(platform_id,
+                                         opencl_platform_params[i].name);
+        if (!str) {
+            av_log(hwdev, AV_LOG_ERROR, "Failed to query %s "
+                   "of platform \"%s\".\n",
+                   opencl_platform_params[i].key, platform_name);
+            return AVERROR_UNKNOWN;
+        }
+        if (!av_stristr(str, param->value)) {
+            av_log(hwdev, AV_LOG_DEBUG, "%s does not match (\"%s\").\n",
+                   param->key, str);
+            ret = 1;
+        }
+        av_free(str);
+    }
+
+    return ret;
+}
+
+static int opencl_enumerate_devices(AVHWDeviceContext *hwdev,
+                                    cl_platform_id platform_id,
+                                    const char *platform_name,
+                                    cl_uint *nb_devices,
+                                    cl_device_id **devices,
+                                    void *context)
+{
+    cl_int cle;
+
+    cle = clGetDeviceIDs(platform_id, CL_DEVICE_TYPE_ALL,
+                         0, NULL, nb_devices);
+    if (cle == CL_DEVICE_NOT_FOUND) {
+        av_log(hwdev, AV_LOG_DEBUG, "No devices found "
+               "on platform \"%s\".\n", platform_name);
+        *nb_devices = 0;
+        return 0;
+    } else if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get number of devices "
+               "on platform \"%s\": %d.\n", platform_name, cle);
+        return AVERROR(ENODEV);
+    }
+    av_log(hwdev, AV_LOG_DEBUG, "%u OpenCL devices found on "
+           "platform \"%s\".\n", *nb_devices, platform_name);
+
+    *devices = av_malloc_array(*nb_devices, sizeof(**devices));
+    if (!*devices)
+        return AVERROR(ENOMEM);
+
+    cle = clGetDeviceIDs(platform_id, CL_DEVICE_TYPE_ALL,
+                         *nb_devices, *devices, NULL);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get list of devices "
+               "on platform \"%s\": %d.\n", platform_name, cle);
+        av_freep(devices);
+        return AVERROR(ENODEV);
+    }
+
+    return 0;
+}
+
+static int opencl_filter_device(AVHWDeviceContext *hwdev,
+                                cl_device_id device_id,
+                                const char *device_name,
+                                void *context)
+{
+    AVDictionary *opts = context;
+    const AVDictionaryEntry *param;
+    char *str;
+    int i, ret = 0;
+
+    param = av_dict_get(opts, "device_type", NULL, 0);
+    if (param) {
+        cl_device_type match_type = 0, device_type;
+        cl_int cle;
+
+        for (i = 0; i < FF_ARRAY_ELEMS(opencl_device_types); i++) {
+            if (!strcmp(opencl_device_types[i].key, param->value)) {
+                match_type = opencl_device_types[i].type;
+                break;
+            }
+        }
+        if (!match_type) {
+            av_log(hwdev, AV_LOG_ERROR, "Unknown device type %s.\n",
+                   param->value);
+            return AVERROR(EINVAL);
+        }
+
+        cle = clGetDeviceInfo(device_id, CL_DEVICE_TYPE,
+                              sizeof(device_type), &device_type, NULL);
+        if (cle != CL_SUCCESS) {
+            av_log(hwdev, AV_LOG_ERROR, "Failed to query device type "
+                   "of device \"%s\".\n", device_name);
+            return AVERROR_UNKNOWN;
+        }
+
+        if (!(device_type & match_type)) {
+            av_log(hwdev, AV_LOG_DEBUG, "device_type does not match.\n");
+            return 1;
+        }
+    }
+
+    for (i = 0; i < FF_ARRAY_ELEMS(opencl_device_params); i++) {
+        param = av_dict_get(opts, opencl_device_params[i].key,
+                            NULL, 0);
+        if (!param)
+            continue;
+
+        str = opencl_get_device_string(device_id,
+                                       opencl_device_params[i].name);
+        if (!str) {
+            av_log(hwdev, AV_LOG_ERROR, "Failed to query %s "
+                   "of device \"%s\".\n",
+                   opencl_device_params[i].key, device_name);
+            return AVERROR_UNKNOWN;
+        }
+        if (!av_stristr(str, param->value)) {
+            av_log(hwdev, AV_LOG_DEBUG, "%s does not match (\"%s\").\n",
+                   param->key, str);
+            ret = 1;
+        }
+        av_free(str);
+    }
+
+    return ret;
+}
+
+typedef struct OpenCLDeviceSelector {
+    int platform_index;
+    int device_index;
+    void *context;
+    int (*enumerate_platforms)(AVHWDeviceContext *hwdev,
+                               cl_uint *nb_platforms,
+                               cl_platform_id **platforms,
+                               void *context);
+    int (*filter_platform)    (AVHWDeviceContext *hwdev,
+                               cl_platform_id platform_id,
+                               const char *platform_name,
+                               void *context);
+    int (*enumerate_devices)  (AVHWDeviceContext *hwdev,
+                               cl_platform_id platform_id,
+                               const char *platform_name,
+                               cl_uint *nb_devices,
+                               cl_device_id **devices,
+                               void *context);
+    int (*filter_device)      (AVHWDeviceContext *hwdev,
+                               cl_device_id device_id,
+                               const char *device_name,
+                               void *context);
+} OpenCLDeviceSelector;
+
+static int opencl_device_create_internal(AVHWDeviceContext *hwdev,
+                                         const OpenCLDeviceSelector *selector,
+                                         cl_context_properties *props)
+{
+    cl_uint      nb_platforms;
+    cl_platform_id *platforms = NULL;
+    cl_platform_id  platform_id;
+    cl_uint      nb_devices;
+    cl_device_id   *devices = NULL;
+    AVOpenCLDeviceContext *hwctx = hwdev->hwctx;
+    cl_int cle;
+    cl_context_properties default_props[3];
+    char *platform_name_src = NULL,
+         *device_name_src   = NULL;
+    int err, found, p, d;
+
+    av_assert0(selector->enumerate_platforms &&
+               selector->enumerate_devices);
+
+    err = selector->enumerate_platforms(hwdev, &nb_platforms, &platforms,
+                                        selector->context);
+    if (err)
+        return err;
+
+    found = 0;
+    for (p = 0; p < nb_platforms; p++) {
+        const char *platform_name;
+
+        if (selector->platform_index >= 0 &&
+            selector->platform_index != p)
+            continue;
+
+        av_freep(&platform_name_src);
+        platform_name_src = opencl_get_platform_string(platforms[p],
+                                                           CL_PLATFORM_NAME);
+        if (platform_name_src)
+            platform_name = platform_name_src;
+        else
+            platform_name = "Unknown Platform";
+
+        if (selector->filter_platform) {
+            err = selector->filter_platform(hwdev, platforms[p],
+                                            platform_name,
+                                            selector->context);
+            if (err < 0)
+                goto fail;
+            if (err > 0)
+                continue;
+        }
+
+        err = selector->enumerate_devices(hwdev, platforms[p], platform_name,
+                                          &nb_devices, &devices,
+                                          selector->context);
+        if (err < 0)
+            continue;
+
+        for (d = 0; d < nb_devices; d++) {
+            const char *device_name;
+
+            if (selector->device_index >= 0 &&
+                selector->device_index != d)
+                continue;
+
+            av_freep(&device_name_src);
+            device_name_src = opencl_get_device_string(devices[d],
+                                                           CL_DEVICE_NAME);
+            if (device_name_src)
+                device_name = device_name_src;
+            else
+                device_name = "Unknown Device";
+
+            if (selector->filter_device) {
+                err = selector->filter_device(hwdev, devices[d],
+                                              device_name,
+                                              selector->context);
+                if (err < 0)
+                    goto fail;
+                if (err > 0)
+                    continue;
+            }
+
+            av_log(hwdev, AV_LOG_VERBOSE, "%d.%d: %s / %s\n", p, d,
+                   platform_name, device_name);
+
+            ++found;
+            platform_id      = platforms[p];
+            hwctx->device_id = devices[d];
+        }
+
+        av_freep(&devices);
+    }
+
+    if (found == 0) {
+        av_log(hwdev, AV_LOG_ERROR, "No matching devices found.\n");
+        err = AVERROR(ENODEV);
+        goto fail;
+    }
+    if (found > 1) {
+        av_log(hwdev, AV_LOG_ERROR, "More than one matching device found.\n");
+        err = AVERROR(ENODEV);
+        goto fail;
+    }
+
+    if (!props) {
+        props = default_props;
+        default_props[0] = CL_CONTEXT_PLATFORM;
+        default_props[1] = (intptr_t)platform_id;
+        default_props[2] = 0;
+    } else {
+        if (props[0] == CL_CONTEXT_PLATFORM && props[1] == 0)
+            props[1] = (intptr_t)platform_id;
+    }
+
+    hwctx->context = clCreateContext(props, 1, &hwctx->device_id,
+                                     &opencl_error_callback, hwdev, &cle);
+    if (!hwctx->context) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to create OpenCL context: "
+               "%d.\n", cle);
+        err = AVERROR(ENODEV);
+        goto fail;
+    }
+
+    hwdev->free = &opencl_device_free;
+
+    err = 0;
+fail:
+    av_freep(&platform_name_src);
+    av_freep(&device_name_src);
+    av_freep(&platforms);
+    av_freep(&devices);
+    return err;
+}
+
+static int opencl_device_create(AVHWDeviceContext *hwdev, const char *device,
+                                AVDictionary *opts, int flags)
+{
+    OpenCLDeviceSelector selector = {
+        .context = opts,
+        .enumerate_platforms = &opencl_enumerate_platforms,
+        .filter_platform     = &opencl_filter_platform,
+        .enumerate_devices   = &opencl_enumerate_devices,
+        .filter_device       = &opencl_filter_device,
+    };
+
+    if (device && device[0]) {
+        // Match one or both indices for platform and device.
+        int d = -1, p = -1, ret;
+        if (device[0] == '.')
+            ret = sscanf(device, ".%d", &d);
+        else
+            ret = sscanf(device, "%d.%d", &p, &d);
+        if (ret < 1) {
+            av_log(hwdev, AV_LOG_ERROR, "Invalid OpenCL platform/device "
+                   "index specification \"%s\".\n", device);
+            return AVERROR(EINVAL);
+        }
+        selector.platform_index = p;
+        selector.device_index   = d;
+    } else {
+        selector.platform_index = -1;
+        selector.device_index   = -1;
+    }
+
+    return opencl_device_create_internal(hwdev, &selector, NULL);
+}
+
+static int opencl_device_init(AVHWDeviceContext *hwdev)
+{
+    AVOpenCLDeviceContext *hwctx = hwdev->hwctx;
+    OpenCLDeviceContext    *priv = hwdev->internal->priv;
+    cl_int cle;
+
+    if (hwctx->command_queue) {
+        cle = clRetainCommandQueue(hwctx->command_queue);
+        if (cle != CL_SUCCESS) {
+            av_log(hwdev, AV_LOG_ERROR, "Failed to retain external "
+                   "command queue: %d.\n", cle);
+            return AVERROR(EIO);
+        }
+        priv->command_queue = hwctx->command_queue;
+    } else {
+        priv->command_queue = clCreateCommandQueue(hwctx->context,
+                                                   hwctx->device_id,
+                                                   0, &cle);
+        if (!priv->command_queue) {
+            av_log(hwdev, AV_LOG_ERROR, "Failed to create internal "
+                   "command queue: %d.\n", cle);
+            return AVERROR(EIO);
+        }
+    }
+
+    cle = clGetDeviceInfo(hwctx->device_id, CL_DEVICE_PLATFORM,
+                          sizeof(priv->platform_id), &priv->platform_id,
+                          NULL);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to determine the OpenCL "
+               "platform containing the device.\n");
+        return AVERROR(EIO);
+    }
+
+#define CL_FUNC(name, desc) do {                                \
+        if (fail)                                               \
+            break;                                              \
+        priv->name = clGetExtensionFunctionAddressForPlatform(  \
+            priv->platform_id, #name);                          \
+        if (!priv->name) {                                      \
+            av_log(hwdev, AV_LOG_VERBOSE,                       \
+                   desc " function not found (%s).\n", #name);  \
+            fail = 1;                                           \
+        } else {                                                \
+            av_log(hwdev, AV_LOG_VERBOSE,                       \
+                   desc " function found (%s).\n", #name);      \
+        }                                                       \
+    } while (0)
+
+#if HAVE_OPENCL_DRM_BEIGNET
+    {
+        int fail = 0;
+
+        CL_FUNC(clCreateImageFromFdINTEL,
+                "Beignet DRM to OpenCL image mapping");
+
+        if (fail) {
+            av_log(hwdev, AV_LOG_WARNING, "Beignet DRM to OpenCL "
+                   "mapping not usable.\n");
+            priv->beignet_drm_mapping_usable = 0;
+        } else {
+            priv->beignet_drm_mapping_usable = 1;
+        }
+    }
+#endif
+
+#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
+    {
+        size_t props_size;
+        cl_context_properties *props = NULL;
+        VADisplay va_display;
+        const char *va_ext = "cl_intel_va_api_media_sharing";
+        int i, fail = 0;
+
+        if (!opencl_check_extension(hwdev, va_ext)) {
+            av_log(hwdev, AV_LOG_VERBOSE, "The %s extension is "
+                   "required for QSV to OpenCL mapping.\n", va_ext);
+            goto no_qsv;
+        }
+
+        cle = clGetContextInfo(hwctx->context, CL_CONTEXT_PROPERTIES,
+                               0, NULL, &props_size);
+        if (cle != CL_SUCCESS) {
+            av_log(hwdev, AV_LOG_VERBOSE, "Failed to get context "
+                   "properties: %d.\n", cle);
+            goto no_qsv;
+        }
+        if (props_size == 0) {
+            av_log(hwdev, AV_LOG_VERBOSE, "Media sharing must be "
+                   "enabled on context creation to use QSV to "
+                   "OpenCL mapping.\n");
+            goto no_qsv;
+        }
+
+        props = av_malloc(props_size);
+        if (!props)
+            return AVERROR(ENOMEM);
+
+        cle = clGetContextInfo(hwctx->context, CL_CONTEXT_PROPERTIES,
+                               props_size, props, NULL);
+        if (cle != CL_SUCCESS) {
+            av_log(hwdev, AV_LOG_VERBOSE, "Failed to get context "
+                   "properties: %d.\n", cle);
+            goto no_qsv;
+        }
+
+        va_display = NULL;
+        for (i = 0; i < (props_size / sizeof(*props) - 1); i++) {
+            if (props[i] == CL_CONTEXT_VA_API_DISPLAY_INTEL) {
+                va_display = (VADisplay)(intptr_t)props[i+1];
+                break;
+            }
+        }
+        if (!va_display) {
+            av_log(hwdev, AV_LOG_VERBOSE, "Media sharing must be "
+                   "enabled on context creation to use QSV to "
+                   "OpenCL mapping.\n");
+            goto no_qsv;
+        }
+        if (!vaDisplayIsValid(va_display)) {
+            av_log(hwdev, AV_LOG_VERBOSE, "A valid VADisplay is "
+                   "required on context creation to use QSV to "
+                   "OpenCL mapping.\n");
+            goto no_qsv;
+        }
+
+        CL_FUNC(clCreateFromVA_APIMediaSurfaceINTEL,
+                "Intel QSV to OpenCL mapping");
+        CL_FUNC(clEnqueueAcquireVA_APIMediaSurfacesINTEL,
+                "Intel QSV in OpenCL acquire");
+        CL_FUNC(clEnqueueReleaseVA_APIMediaSurfacesINTEL,
+                "Intel QSV in OpenCL release");
+
+        if (fail) {
+        no_qsv:
+            av_log(hwdev, AV_LOG_WARNING, "QSV to OpenCL mapping "
+                   "not usable.\n");
+            priv->qsv_mapping_usable = 0;
+        } else {
+            priv->qsv_mapping_usable = 1;
+        }
+        av_free(props);
+    }
+#endif
+
+#if HAVE_OPENCL_DXVA2
+    {
+        int fail = 0;
+
+        CL_FUNC(clCreateFromDX9MediaSurfaceKHR,
+                "DXVA2 to OpenCL mapping");
+        CL_FUNC(clEnqueueAcquireDX9MediaSurfacesKHR,
+                "DXVA2 in OpenCL acquire");
+        CL_FUNC(clEnqueueReleaseDX9MediaSurfacesKHR,
+                "DXVA2 in OpenCL release");
+
+        if (fail) {
+            av_log(hwdev, AV_LOG_WARNING, "DXVA2 to OpenCL mapping "
+                   "not usable.\n");
+            priv->dxva2_mapping_usable = 0;
+        } else {
+            priv->dx9_media_adapter_type = CL_ADAPTER_D3D9EX_KHR;
+            priv->dxva2_mapping_usable = 1;
+        }
+    }
+#endif
+
+#if HAVE_OPENCL_D3D11
+    {
+        const char *d3d11_ext = "cl_khr_d3d11_sharing";
+        const char *nv12_ext  = "cl_intel_d3d11_nv12_media_sharing";
+        int fail = 0;
+
+        if (!opencl_check_extension(hwdev, d3d11_ext)) {
+            av_log(hwdev, AV_LOG_VERBOSE, "The %s extension is "
+                   "required for D3D11 to OpenCL mapping.\n", d3d11_ext);
+            fail = 1;
+        } else if (!opencl_check_extension(hwdev, nv12_ext)) {
+            av_log(hwdev, AV_LOG_VERBOSE, "The %s extension may be "
+                   "required for D3D11 to OpenCL mapping.\n", nv12_ext);
+            // Not fatal.
+        }
+
+        CL_FUNC(clCreateFromD3D11Texture2DKHR,
+                "D3D11 to OpenCL mapping");
+        CL_FUNC(clEnqueueAcquireD3D11ObjectsKHR,
+                "D3D11 in OpenCL acquire");
+        CL_FUNC(clEnqueueReleaseD3D11ObjectsKHR,
+                "D3D11 in OpenCL release");
+
+        if (fail) {
+            av_log(hwdev, AV_LOG_WARNING, "D3D11 to OpenCL mapping "
+                   "not usable.\n");
+            priv->d3d11_mapping_usable = 0;
+        } else {
+            priv->d3d11_mapping_usable = 1;
+        }
+    }
+#endif
+
+#if HAVE_OPENCL_DRM_ARM
+    {
+        const char *drm_arm_ext = "cl_arm_import_memory";
+        const char *image_ext   = "cl_khr_image2d_from_buffer";
+        int fail = 0;
+
+        if (!opencl_check_extension(hwdev, drm_arm_ext)) {
+            av_log(hwdev, AV_LOG_VERBOSE, "The %s extension is "
+                   "required for DRM to OpenCL mapping on ARM.\n",
+                   drm_arm_ext);
+            fail = 1;
+        }
+        if (!opencl_check_extension(hwdev, image_ext)) {
+            av_log(hwdev, AV_LOG_VERBOSE, "The %s extension is "
+                   "required for DRM to OpenCL mapping on ARM.\n",
+                   image_ext);
+            fail = 1;
+        }
+
+        // clImportMemoryARM() is linked statically.
+
+        if (fail) {
+            av_log(hwdev, AV_LOG_WARNING, "DRM to OpenCL mapping on ARM "
+                   "not usable.\n");
+            priv->drm_arm_mapping_usable = 0;
+        } else {
+            priv->drm_arm_mapping_usable = 1;
+        }
+    }
+#endif
+
+#undef CL_FUNC
+
+    return 0;
+}
+
+static void opencl_device_uninit(AVHWDeviceContext *hwdev)
+{
+    OpenCLDeviceContext *priv = hwdev->internal->priv;
+    cl_int cle;
+
+    if (priv->command_queue) {
+        cle = clReleaseCommandQueue(priv->command_queue);
+        if (cle != CL_SUCCESS) {
+            av_log(hwdev, AV_LOG_ERROR, "Failed to release internal "
+                   "command queue reference: %d.\n", cle);
+        }
+        priv->command_queue = NULL;
+    }
+}
+
+#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
+static int opencl_filter_intel_media_vaapi_platform(AVHWDeviceContext *hwdev,
+                                                    cl_platform_id platform_id,
+                                                    const char *platform_name,
+                                                    void *context)
+{
+    // This doesn't exist as a platform extension, so just test whether
+    // the function we will use for device enumeration exists.
+
+    if (!clGetExtensionFunctionAddressForPlatform(platform_id,
+            "clGetDeviceIDsFromVA_APIMediaAdapterINTEL")) {
+        av_log(hwdev, AV_LOG_DEBUG, "Platform %s does not export the "
+               "VAAPI device enumeration function.\n", platform_name);
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+static int opencl_enumerate_intel_media_vaapi_devices(AVHWDeviceContext *hwdev,
+                                                      cl_platform_id platform_id,
+                                                      const char *platform_name,
+                                                      cl_uint *nb_devices,
+                                                      cl_device_id **devices,
+                                                      void *context)
+{
+    VADisplay va_display = context;
+    clGetDeviceIDsFromVA_APIMediaAdapterINTEL_fn
+        clGetDeviceIDsFromVA_APIMediaAdapterINTEL;
+    cl_int cle;
+
+    clGetDeviceIDsFromVA_APIMediaAdapterINTEL =
+        clGetExtensionFunctionAddressForPlatform(platform_id,
+            "clGetDeviceIDsFromVA_APIMediaAdapterINTEL");
+    if (!clGetDeviceIDsFromVA_APIMediaAdapterINTEL) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get address of "
+               "clGetDeviceIDsFromVA_APIMediaAdapterINTEL().\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    cle = clGetDeviceIDsFromVA_APIMediaAdapterINTEL(
+        platform_id, CL_VA_API_DISPLAY_INTEL, va_display,
+        CL_PREFERRED_DEVICES_FOR_VA_API_INTEL, 0, NULL, nb_devices);
+    if (cle == CL_DEVICE_NOT_FOUND) {
+        av_log(hwdev, AV_LOG_DEBUG, "No VAAPI-supporting devices found "
+               "on platform \"%s\".\n", platform_name);
+        *nb_devices = 0;
+        return 0;
+    } else if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get number of devices "
+               "on platform \"%s\": %d.\n", platform_name, cle);
+        return AVERROR_UNKNOWN;
+    }
+
+    *devices = av_malloc_array(*nb_devices, sizeof(**devices));
+    if (!*devices)
+        return AVERROR(ENOMEM);
+
+    cle = clGetDeviceIDsFromVA_APIMediaAdapterINTEL(
+        platform_id, CL_VA_API_DISPLAY_INTEL, va_display,
+        CL_PREFERRED_DEVICES_FOR_VA_API_INTEL, *nb_devices, *devices, NULL);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get list of VAAPI-supporting "
+               "devices on platform \"%s\": %d.\n", platform_name, cle);
+        av_freep(devices);
+        return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+
+static int opencl_filter_intel_media_vaapi_device(AVHWDeviceContext *hwdev,
+                                                  cl_device_id device_id,
+                                                  const char *device_name,
+                                                  void *context)
+{
+    const char *va_ext = "cl_intel_va_api_media_sharing";
+
+    if (opencl_check_device_extension(device_id, va_ext)) {
+        return 0;
+    } else {
+        av_log(hwdev, AV_LOG_DEBUG, "Device %s does not support the "
+               "%s extension.\n", device_name, va_ext);
+        return 1;
+    }
+}
+#endif
+
+#if HAVE_OPENCL_DXVA2
+static int opencl_filter_dxva2_platform(AVHWDeviceContext *hwdev,
+                                        cl_platform_id platform_id,
+                                        const char *platform_name,
+                                        void *context)
+{
+    const char *dx9_ext = "cl_khr_dx9_media_sharing";
+
+    if (opencl_check_platform_extension(platform_id, dx9_ext)) {
+        return 0;
+    } else {
+        av_log(hwdev, AV_LOG_DEBUG, "Platform %s does not support the "
+               "%s extension.\n", platform_name, dx9_ext);
+        return 1;
+    }
+}
+
+static int opencl_enumerate_dxva2_devices(AVHWDeviceContext *hwdev,
+                                          cl_platform_id platform_id,
+                                          const char *platform_name,
+                                          cl_uint *nb_devices,
+                                          cl_device_id **devices,
+                                          void *context)
+{
+    IDirect3DDevice9 *device = context;
+    clGetDeviceIDsFromDX9MediaAdapterKHR_fn
+        clGetDeviceIDsFromDX9MediaAdapterKHR;
+    cl_dx9_media_adapter_type_khr media_adapter_type = CL_ADAPTER_D3D9EX_KHR;
+    cl_int cle;
+
+    clGetDeviceIDsFromDX9MediaAdapterKHR =
+        clGetExtensionFunctionAddressForPlatform(platform_id,
+            "clGetDeviceIDsFromDX9MediaAdapterKHR");
+    if (!clGetDeviceIDsFromDX9MediaAdapterKHR) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get address of "
+               "clGetDeviceIDsFromDX9MediaAdapterKHR().\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    cle = clGetDeviceIDsFromDX9MediaAdapterKHR(
+        platform_id, 1, &media_adapter_type, (void**)&device,
+        CL_PREFERRED_DEVICES_FOR_DX9_MEDIA_ADAPTER_KHR,
+        0, NULL, nb_devices);
+    if (cle == CL_DEVICE_NOT_FOUND) {
+        av_log(hwdev, AV_LOG_DEBUG, "No DXVA2-supporting devices found "
+               "on platform \"%s\".\n", platform_name);
+        *nb_devices = 0;
+        return 0;
+    } else if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get number of devices "
+               "on platform \"%s\": %d.\n", platform_name, cle);
+        return AVERROR_UNKNOWN;
+    }
+
+    *devices = av_malloc_array(*nb_devices, sizeof(**devices));
+    if (!*devices)
+        return AVERROR(ENOMEM);
+
+    cle = clGetDeviceIDsFromDX9MediaAdapterKHR(
+        platform_id, 1, &media_adapter_type, (void**)&device,
+        CL_PREFERRED_DEVICES_FOR_DX9_MEDIA_ADAPTER_KHR,
+        *nb_devices, *devices, NULL);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get list of DXVA2-supporting "
+               "devices on platform \"%s\": %d.\n", platform_name, cle);
+        av_freep(devices);
+        return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+#endif
+
+#if HAVE_OPENCL_D3D11
+static int opencl_filter_d3d11_platform(AVHWDeviceContext *hwdev,
+                                        cl_platform_id platform_id,
+                                        const char *platform_name,
+                                        void *context)
+{
+    const char *d3d11_ext = "cl_khr_d3d11_sharing";
+
+    if (opencl_check_platform_extension(platform_id, d3d11_ext)) {
+        return 0;
+    } else {
+        av_log(hwdev, AV_LOG_DEBUG, "Platform %s does not support the "
+               "%s extension.\n", platform_name, d3d11_ext);
+        return 1;
+    }
+}
+
+static int opencl_enumerate_d3d11_devices(AVHWDeviceContext *hwdev,
+                                          cl_platform_id platform_id,
+                                          const char *platform_name,
+                                          cl_uint *nb_devices,
+                                          cl_device_id **devices,
+                                          void *context)
+{
+    ID3D11Device *device = context;
+    clGetDeviceIDsFromD3D11KHR_fn clGetDeviceIDsFromD3D11KHR;
+    cl_int cle;
+
+    clGetDeviceIDsFromD3D11KHR =
+        clGetExtensionFunctionAddressForPlatform(platform_id,
+            "clGetDeviceIDsFromD3D11KHR");
+    if (!clGetDeviceIDsFromD3D11KHR) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get address of "
+               "clGetDeviceIDsFromD3D11KHR().\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    cle = clGetDeviceIDsFromD3D11KHR(platform_id,
+                                     CL_D3D11_DEVICE_KHR, device,
+                                     CL_PREFERRED_DEVICES_FOR_D3D11_KHR,
+                                     0, NULL, nb_devices);
+    if (cle == CL_DEVICE_NOT_FOUND) {
+        av_log(hwdev, AV_LOG_DEBUG, "No D3D11-supporting devices found "
+               "on platform \"%s\".\n", platform_name);
+        *nb_devices = 0;
+        return 0;
+    } else if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get number of devices "
+               "on platform \"%s\": %d.\n", platform_name, cle);
+        return AVERROR_UNKNOWN;
+    }
+
+    *devices = av_malloc_array(*nb_devices, sizeof(**devices));
+    if (!*devices)
+        return AVERROR(ENOMEM);
+
+    cle = clGetDeviceIDsFromD3D11KHR(platform_id,
+                                     CL_D3D11_DEVICE_KHR, device,
+                                     CL_PREFERRED_DEVICES_FOR_D3D11_KHR,
+                                     *nb_devices, *devices, NULL);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to get list of D3D11-supporting "
+               "devices on platform \"%s\": %d.\n", platform_name, cle);
+        av_freep(devices);
+        return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+#endif
+
+#if HAVE_OPENCL_DXVA2 || HAVE_OPENCL_D3D11
+static int opencl_filter_gpu_device(AVHWDeviceContext *hwdev,
+                                    cl_device_id device_id,
+                                    const char *device_name,
+                                    void *context)
+{
+    cl_device_type device_type;
+    cl_int cle;
+
+    cle = clGetDeviceInfo(device_id, CL_DEVICE_TYPE,
+                          sizeof(device_type), &device_type, NULL);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to query device type "
+               "of device \"%s\".\n", device_name);
+        return AVERROR_UNKNOWN;
+    }
+    if (!(device_type & CL_DEVICE_TYPE_GPU)) {
+        av_log(hwdev, AV_LOG_DEBUG, "Device %s skipped (not GPU).\n",
+               device_name);
+        return 1;
+    }
+
+    return 0;
+}
+#endif
+
+#if HAVE_OPENCL_DRM_ARM
+static int opencl_filter_drm_arm_platform(AVHWDeviceContext *hwdev,
+                                          cl_platform_id platform_id,
+                                          const char *platform_name,
+                                          void *context)
+{
+    const char *drm_arm_ext = "cl_arm_import_memory";
+
+    if (opencl_check_platform_extension(platform_id, drm_arm_ext)) {
+        return 0;
+    } else {
+        av_log(hwdev, AV_LOG_DEBUG, "Platform %s does not support the "
+               "%s extension.\n", platform_name, drm_arm_ext);
+        return 1;
+    }
+}
+
+static int opencl_filter_drm_arm_device(AVHWDeviceContext *hwdev,
+                                        cl_device_id device_id,
+                                        const char *device_name,
+                                        void *context)
+{
+    const char *drm_arm_ext = "cl_arm_import_memory";
+
+    if (opencl_check_device_extension(device_id, drm_arm_ext)) {
+        return 0;
+    } else {
+        av_log(hwdev, AV_LOG_DEBUG, "Device %s does not support the "
+               "%s extension.\n", device_name, drm_arm_ext);
+        return 1;
+    }
+}
+#endif
+
+static int opencl_device_derive(AVHWDeviceContext *hwdev,
+                                AVHWDeviceContext *src_ctx,
+                                int flags)
+{
+    int err;
+    switch (src_ctx->type) {
+
+#if HAVE_OPENCL_DRM_BEIGNET
+    case AV_HWDEVICE_TYPE_DRM:
+    case AV_HWDEVICE_TYPE_VAAPI:
+        {
+            // Surface mapping works via DRM PRIME fds with no special
+            // initialisation required in advance.  This just finds the
+            // Beignet ICD by name.
+            AVDictionary *opts = NULL;
+
+            err = av_dict_set(&opts, "platform_vendor", "Intel", 0);
+            if (err >= 0)
+                err = av_dict_set(&opts, "platform_version", "beignet", 0);
+            if (err >= 0) {
+                OpenCLDeviceSelector selector = {
+                    .platform_index      = -1,
+                    .device_index        = 0,
+                    .context             = opts,
+                    .enumerate_platforms = &opencl_enumerate_platforms,
+                    .filter_platform     = &opencl_filter_platform,
+                    .enumerate_devices   = &opencl_enumerate_devices,
+                    .filter_device       = NULL,
+                };
+                err = opencl_device_create_internal(hwdev, &selector, NULL);
+            }
+            av_dict_free(&opts);
+        }
+        break;
+#endif
+
+#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
+        // The generic code automatically attempts to derive from all
+        // ancestors of the given device, so we can ignore QSV devices here
+        // and just consider the inner VAAPI device it was derived from.
+    case AV_HWDEVICE_TYPE_VAAPI:
+        {
+            AVVAAPIDeviceContext *src_hwctx = src_ctx->hwctx;
+            cl_context_properties props[7] = {
+                CL_CONTEXT_PLATFORM,
+                0,
+                CL_CONTEXT_VA_API_DISPLAY_INTEL,
+                (intptr_t)src_hwctx->display,
+                CL_CONTEXT_INTEROP_USER_SYNC,
+                CL_FALSE,
+                0,
+            };
+            OpenCLDeviceSelector selector = {
+                .platform_index      = -1,
+                .device_index        = -1,
+                .context             = src_hwctx->display,
+                .enumerate_platforms = &opencl_enumerate_platforms,
+                .filter_platform     = &opencl_filter_intel_media_vaapi_platform,
+                .enumerate_devices   = &opencl_enumerate_intel_media_vaapi_devices,
+                .filter_device       = &opencl_filter_intel_media_vaapi_device,
+            };
+
+            err = opencl_device_create_internal(hwdev, &selector, props);
+        }
+        break;
+#endif
+
+#if HAVE_OPENCL_DXVA2
+    case AV_HWDEVICE_TYPE_DXVA2:
+        {
+            AVDXVA2DeviceContext *src_hwctx = src_ctx->hwctx;
+            IDirect3DDevice9 *device;
+            HANDLE device_handle;
+            HRESULT hr;
+
+            hr = IDirect3DDeviceManager9_OpenDeviceHandle(src_hwctx->devmgr,
+                                                          &device_handle);
+            if (FAILED(hr)) {
+                av_log(hwdev, AV_LOG_ERROR, "Failed to open device handle "
+                       "for Direct3D9 device: %lx.\n", (unsigned long)hr);
+                err = AVERROR_UNKNOWN;
+                break;
+            }
+
+            hr = IDirect3DDeviceManager9_LockDevice(src_hwctx->devmgr,
+                                                    device_handle,
+                                                    &device, FALSE);
+            if (SUCCEEDED(hr)) {
+                cl_context_properties props[5] = {
+                    CL_CONTEXT_PLATFORM,
+                    0,
+                    CL_CONTEXT_ADAPTER_D3D9EX_KHR,
+                    (intptr_t)device,
+                    0,
+                };
+                OpenCLDeviceSelector selector = {
+                    .platform_index      = -1,
+                    .device_index        = -1,
+                    .context             = device,
+                    .enumerate_platforms = &opencl_enumerate_platforms,
+                    .filter_platform     = &opencl_filter_dxva2_platform,
+                    .enumerate_devices   = &opencl_enumerate_dxva2_devices,
+                    .filter_device       = &opencl_filter_gpu_device,
+                };
+
+                err = opencl_device_create_internal(hwdev, &selector, props);
+
+                IDirect3DDeviceManager9_UnlockDevice(src_hwctx->devmgr,
+                                                     device_handle, FALSE);
+            } else {
+                av_log(hwdev, AV_LOG_ERROR, "Failed to lock device handle "
+                       "for Direct3D9 device: %lx.\n", (unsigned long)hr);
+                err = AVERROR_UNKNOWN;
+            }
+
+            IDirect3DDeviceManager9_CloseDeviceHandle(src_hwctx->devmgr,
+                                                      device_handle);
+        }
+        break;
+#endif
+
+#if HAVE_OPENCL_D3D11
+    case AV_HWDEVICE_TYPE_D3D11VA:
+        {
+            AVD3D11VADeviceContext *src_hwctx = src_ctx->hwctx;
+            cl_context_properties props[5] = {
+                CL_CONTEXT_PLATFORM,
+                0,
+                CL_CONTEXT_D3D11_DEVICE_KHR,
+                (intptr_t)src_hwctx->device,
+                0,
+            };
+            OpenCLDeviceSelector selector = {
+                .platform_index      = -1,
+                .device_index        = -1,
+                .context             = src_hwctx->device,
+                .enumerate_platforms = &opencl_enumerate_platforms,
+                .filter_platform     = &opencl_filter_d3d11_platform,
+                .enumerate_devices   = &opencl_enumerate_d3d11_devices,
+                .filter_device       = &opencl_filter_gpu_device,
+            };
+
+            err = opencl_device_create_internal(hwdev, &selector, props);
+        }
+        break;
+#endif
+
+#if HAVE_OPENCL_DRM_ARM
+    case AV_HWDEVICE_TYPE_DRM:
+        {
+            OpenCLDeviceSelector selector = {
+                .platform_index      = -1,
+                .device_index        = -1,
+                .context             = NULL,
+                .enumerate_platforms = &opencl_enumerate_platforms,
+                .filter_platform     = &opencl_filter_drm_arm_platform,
+                .enumerate_devices   = &opencl_enumerate_devices,
+                .filter_device       = &opencl_filter_drm_arm_device,
+            };
+
+            err = opencl_device_create_internal(hwdev, &selector, NULL);
+        }
+        break;
+#endif
+
+    default:
+        err = AVERROR(ENOSYS);
+        break;
+    }
+
+    return err;
+}
+
+static int opencl_get_plane_format(enum AVPixelFormat pixfmt,
+                                   int plane, int width, int height,
+                                   cl_image_format *image_format,
+                                   cl_image_desc *image_desc)
+{
+    const AVPixFmtDescriptor *desc;
+    const AVComponentDescriptor *comp;
+    int channels = 0, order = 0, depth = 0, step = 0;
+    int wsub, hsub, alpha;
+    int c;
+
+    if (plane >= AV_NUM_DATA_POINTERS)
+        return AVERROR(ENOENT);
+
+    desc = av_pix_fmt_desc_get(pixfmt);
+
+    // Only normal images are allowed.
+    if (desc->flags & (AV_PIX_FMT_FLAG_BITSTREAM |
+                       AV_PIX_FMT_FLAG_HWACCEL   |
+                       AV_PIX_FMT_FLAG_PAL))
+        return AVERROR(EINVAL);
+
+    wsub = 1 << desc->log2_chroma_w;
+    hsub = 1 << desc->log2_chroma_h;
+    // Subsampled components must be exact.
+    if (width & wsub - 1 || height & hsub - 1)
+        return AVERROR(EINVAL);
+
+    for (c = 0; c < desc->nb_components; c++) {
+        comp = &desc->comp[c];
+        if (comp->plane != plane)
+            continue;
+        // The step size must be a power of two.
+        if (comp->step != 1 && comp->step != 2 &&
+            comp->step != 4 && comp->step != 8)
+            return AVERROR(EINVAL);
+        // The bits in each component must be packed in the
+        // most-significant-bits of the relevant bytes.
+        if (comp->shift + comp->depth != 8 &&
+            comp->shift + comp->depth != 16)
+            return AVERROR(EINVAL);
+        // The depth must not vary between components.
+        if (depth && comp->depth != depth)
+            return AVERROR(EINVAL);
+        // If a single data element crosses multiple bytes then
+        // it must match the native endianness.
+        if (comp->depth > 8 &&
+            HAVE_BIGENDIAN == !(desc->flags & AV_PIX_FMT_FLAG_BE))
+            return AVERROR(EINVAL);
+        // A single data element must not contain multiple samples
+        // from the same component.
+        if (step && comp->step != step)
+            return AVERROR(EINVAL);
+
+        depth = comp->depth;
+        order = order * 10 + comp->offset / ((depth + 7) / 8) + 1;
+        step  = comp->step;
+        alpha = (desc->flags & AV_PIX_FMT_FLAG_ALPHA &&
+                 c == desc->nb_components - 1);
+        ++channels;
+    }
+    if (channels == 0)
+        return AVERROR(ENOENT);
+
+    memset(image_format, 0, sizeof(*image_format));
+    memset(image_desc,   0, sizeof(*image_desc));
+    image_desc->image_type = CL_MEM_OBJECT_IMAGE2D;
+
+    if (plane == 0 || alpha) {
+        image_desc->image_width     = width;
+        image_desc->image_height    = height;
+        image_desc->image_row_pitch = step * width;
+    } else {
+        image_desc->image_width     = width  / wsub;
+        image_desc->image_height    = height / hsub;
+        image_desc->image_row_pitch = step * width / wsub;
+    }
+
+    if (depth <= 8) {
+        image_format->image_channel_data_type = CL_UNORM_INT8;
+    } else {
+        if (depth <= 16)
+            image_format->image_channel_data_type = CL_UNORM_INT16;
+        else
+            return AVERROR(EINVAL);
+    }
+
+#define CHANNEL_ORDER(order, type) \
+    case order: image_format->image_channel_order = type; break;
+    switch (order) {
+        CHANNEL_ORDER(1,    CL_R);
+        CHANNEL_ORDER(12,   CL_RG);
+        CHANNEL_ORDER(1234, CL_RGBA);
+        CHANNEL_ORDER(2341, CL_ARGB);
+        CHANNEL_ORDER(3214, CL_BGRA);
+#ifdef CL_ABGR
+        CHANNEL_ORDER(4321, CL_ABGR);
+#endif
+    default:
+        return AVERROR(EINVAL);
+    }
+#undef CHANNEL_ORDER
+
+    return 0;
+}
+
+static int opencl_frames_get_constraints(AVHWDeviceContext *hwdev,
+                                         const void *hwconfig,
+                                         AVHWFramesConstraints *constraints)
+{
+    AVOpenCLDeviceContext *hwctx = hwdev->hwctx;
+    cl_uint nb_image_formats;
+    cl_image_format *image_formats = NULL;
+    cl_int cle;
+    enum AVPixelFormat pix_fmt;
+    int err, pix_fmts_found;
+    size_t max_width, max_height;
+
+    cle = clGetDeviceInfo(hwctx->device_id, CL_DEVICE_IMAGE2D_MAX_WIDTH,
+                          sizeof(max_width), &max_width, NULL);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to query maximum "
+               "supported image width: %d.\n", cle);
+    } else {
+        constraints->max_width = max_width;
+    }
+    cle = clGetDeviceInfo(hwctx->device_id, CL_DEVICE_IMAGE2D_MAX_HEIGHT,
+                          sizeof(max_height), &max_height, NULL);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to query maximum "
+               "supported image height: %d.\n", cle);
+    } else {
+        constraints->max_height = max_height;
+    }
+    av_log(hwdev, AV_LOG_DEBUG, "Maximum supported image size %dx%d.\n",
+           constraints->max_width, constraints->max_height);
+
+    cle = clGetSupportedImageFormats(hwctx->context,
+                                     CL_MEM_READ_WRITE,
+                                     CL_MEM_OBJECT_IMAGE2D,
+                                     0, NULL, &nb_image_formats);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to query supported "
+               "image formats: %d.\n", cle);
+        err = AVERROR(ENOSYS);
+        goto fail;
+    }
+    if (nb_image_formats == 0) {
+        av_log(hwdev, AV_LOG_ERROR, "No image support in OpenCL "
+               "driver (zero supported image formats).\n");
+        err = AVERROR(ENOSYS);
+        goto fail;
+    }
+
+    image_formats =
+        av_malloc_array(nb_image_formats, sizeof(*image_formats));
+    if (!image_formats) {
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    cle = clGetSupportedImageFormats(hwctx->context,
+                                     CL_MEM_READ_WRITE,
+                                     CL_MEM_OBJECT_IMAGE2D,
+                                     nb_image_formats,
+                                     image_formats, NULL);
+    if (cle != CL_SUCCESS) {
+        av_log(hwdev, AV_LOG_ERROR, "Failed to query supported "
+               "image formats: %d.\n", cle);
+        err = AVERROR(ENOSYS);
+        goto fail;
+    }
+
+    pix_fmts_found = 0;
+    for (pix_fmt = 0; pix_fmt < AV_PIX_FMT_NB; pix_fmt++) {
+        cl_image_format image_format;
+        cl_image_desc   image_desc;
+        int plane, i;
+
+        for (plane = 0;; plane++) {
+            err = opencl_get_plane_format(pix_fmt, plane, 0, 0,
+                                          &image_format,
+                                          &image_desc);
+            if (err < 0)
+                break;
+
+            for (i = 0; i < nb_image_formats; i++) {
+                if (image_formats[i].image_channel_order ==
+                    image_format.image_channel_order &&
+                    image_formats[i].image_channel_data_type ==
+                    image_format.image_channel_data_type)
+                    break;
+            }
+            if (i == nb_image_formats) {
+                err = AVERROR(EINVAL);
+                break;
+            }
+        }
+        if (err != AVERROR(ENOENT))
+            continue;
+
+        av_log(hwdev, AV_LOG_DEBUG, "Format %s supported.\n",
+               av_get_pix_fmt_name(pix_fmt));
+
+        err = av_reallocp_array(&constraints->valid_sw_formats,
+                                pix_fmts_found + 2,
+                                sizeof(*constraints->valid_sw_formats));
+        if (err < 0)
+            goto fail;
+        constraints->valid_sw_formats[pix_fmts_found] = pix_fmt;
+        constraints->valid_sw_formats[pix_fmts_found + 1] =
+            AV_PIX_FMT_NONE;
+        ++pix_fmts_found;
+    }
+
+    av_freep(&image_formats);
+
+    constraints->valid_hw_formats =
+        av_malloc_array(2, sizeof(*constraints->valid_hw_formats));
+    if (!constraints->valid_hw_formats) {
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+    constraints->valid_hw_formats[0] = AV_PIX_FMT_OPENCL;
+    constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE;
+
+    return 0;
+
+fail:
+    av_freep(&image_formats);
+    return err;
+}
+
+static void opencl_pool_free(void *opaque, uint8_t *data)
+{
+    AVHWFramesContext       *hwfc = opaque;
+    AVOpenCLFrameDescriptor *desc = (AVOpenCLFrameDescriptor*)data;
+    cl_int cle;
+    int p;
+
+    for (p = 0; p < desc->nb_planes; p++) {
+        cle = clReleaseMemObject(desc->planes[p]);
+        if (cle != CL_SUCCESS) {
+            av_log(hwfc, AV_LOG_ERROR, "Failed to release plane %d: "
+                   "%d.\n", p, cle);
+        }
+    }
+
+    av_free(desc);
+}
+
+static AVBufferRef *opencl_pool_alloc(void *opaque, int size)
+{
+    AVHWFramesContext      *hwfc = opaque;
+    AVOpenCLDeviceContext *hwctx = hwfc->device_ctx->hwctx;
+    AVOpenCLFrameDescriptor *desc;
+    cl_int cle;
+    cl_mem image;
+    cl_image_format image_format;
+    cl_image_desc   image_desc;
+    int err, p;
+    AVBufferRef *ref;
+
+    desc = av_mallocz(sizeof(*desc));
+    if (!desc)
+        return NULL;
+
+    for (p = 0;; p++) {
+        err = opencl_get_plane_format(hwfc->sw_format, p,
+                                      hwfc->width, hwfc->height,
+                                      &image_format, &image_desc);
+        if (err == AVERROR(ENOENT))
+            break;
+        if (err < 0)
+            goto fail;
+
+        // For generic image objects, the pitch is determined by the
+        // implementation.
+        image_desc.image_row_pitch = 0;
+
+        image = clCreateImage(hwctx->context, CL_MEM_READ_WRITE,
+                              &image_format, &image_desc, NULL, &cle);
+        if (!image) {
+            av_log(hwfc, AV_LOG_ERROR, "Failed to create image for "
+                   "plane %d: %d.\n", p, cle);
+            goto fail;
+        }
+
+        desc->planes[p] = image;
+    }
+
+    desc->nb_planes = p;
+
+    ref = av_buffer_create((uint8_t*)desc, sizeof(*desc),
+                           &opencl_pool_free, hwfc, 0);
+    if (!ref)
+        goto fail;
+
+    return ref;
+
+fail:
+    for (p = 0; desc->planes[p]; p++)
+        clReleaseMemObject(desc->planes[p]);
+    av_free(desc);
+    return NULL;
+}
+
+static int opencl_frames_init_command_queue(AVHWFramesContext *hwfc)
+{
+    AVOpenCLFramesContext *hwctx = hwfc->hwctx;
+    OpenCLDeviceContext *devpriv = hwfc->device_ctx->internal->priv;
+    OpenCLFramesContext    *priv = hwfc->internal->priv;
+    cl_int cle;
+
+    priv->command_queue = hwctx->command_queue ? hwctx->command_queue
+                                               : devpriv->command_queue;
+    cle = clRetainCommandQueue(priv->command_queue);
+    if (cle != CL_SUCCESS) {
+        av_log(hwfc, AV_LOG_ERROR, "Failed to retain frame "
+               "command queue: %d.\n", cle);
+        return AVERROR(EIO);
+    }
+
+    return 0;
+}
+
+static int opencl_frames_init(AVHWFramesContext *hwfc)
+{
+    if (!hwfc->pool) {
+        hwfc->internal->pool_internal =
+            av_buffer_pool_init2(sizeof(cl_mem), hwfc,
+                                 &opencl_pool_alloc, NULL);
+        if (!hwfc->internal->pool_internal)
+            return AVERROR(ENOMEM);
+    }
+
+    return opencl_frames_init_command_queue(hwfc);
+}
+
+static void opencl_frames_uninit(AVHWFramesContext *hwfc)
+{
+    OpenCLFramesContext *priv = hwfc->internal->priv;
+    cl_int cle;
+
+#if HAVE_OPENCL_DXVA2 || HAVE_OPENCL_D3D11
+    int i, p;
+    for (i = 0; i < priv->nb_mapped_frames; i++) {
+        AVOpenCLFrameDescriptor *desc = &priv->mapped_frames[i];
+        for (p = 0; p < desc->nb_planes; p++) {
+            cle = clReleaseMemObject(desc->planes[p]);
+            if (cle != CL_SUCCESS) {
+                av_log(hwfc, AV_LOG_ERROR, "Failed to release mapped "
+                       "frame object (frame %d plane %d): %d.\n",
+                       i, p, cle);
+            }
+        }
+    }
+    av_freep(&priv->mapped_frames);
+#endif
+
+    if (priv->command_queue) {
+        cle = clReleaseCommandQueue(priv->command_queue);
+        if (cle != CL_SUCCESS) {
+            av_log(hwfc, AV_LOG_ERROR, "Failed to release frame "
+                   "command queue: %d.\n", cle);
+        }
+        priv->command_queue = NULL;
+    }
+}
+
+static int opencl_get_buffer(AVHWFramesContext *hwfc, AVFrame *frame)
+{
+    AVOpenCLFrameDescriptor *desc;
+    int p;
+
+    frame->buf[0] = av_buffer_pool_get(hwfc->pool);
+    if (!frame->buf[0])
+        return AVERROR(ENOMEM);
+
+    desc = (AVOpenCLFrameDescriptor*)frame->buf[0]->data;
+
+    for (p = 0; p < desc->nb_planes; p++)
+        frame->data[p] = (uint8_t*)desc->planes[p];
+
+    frame->format  = AV_PIX_FMT_OPENCL;
+    frame->width   = hwfc->width;
+    frame->height  = hwfc->height;
+
+    return 0;
+}
+
+static int opencl_transfer_get_formats(AVHWFramesContext *hwfc,
+                                       enum AVHWFrameTransferDirection dir,
+                                       enum AVPixelFormat **formats)
+{
+    enum AVPixelFormat *fmts;
+
+    fmts = av_malloc_array(2, sizeof(*fmts));
+    if (!fmts)
+        return AVERROR(ENOMEM);
+
+    fmts[0] = hwfc->sw_format;
+    fmts[1] = AV_PIX_FMT_NONE;
+
+    *formats = fmts;
+    return 0;
+}
+
+static int opencl_wait_events(AVHWFramesContext *hwfc,
+                              cl_event *events, int nb_events)
+{
+    cl_int cle;
+    int i;
+
+    cle = clWaitForEvents(nb_events, events);
+    if (cle != CL_SUCCESS) {
+        av_log(hwfc, AV_LOG_ERROR, "Failed to wait for event "
+               "completion: %d.\n", cle);
+        return AVERROR(EIO);
+    }
+
+    for (i = 0; i < nb_events; i++) {
+        cle = clReleaseEvent(events[i]);
+        if (cle != CL_SUCCESS) {
+            av_log(hwfc, AV_LOG_ERROR, "Failed to release "
+                   "event: %d.\n", cle);
+        }
+    }
+
+    return 0;
+}
+
+static int opencl_transfer_data_from(AVHWFramesContext *hwfc,
+                                     AVFrame *dst, const AVFrame *src)
+{
+    OpenCLFramesContext *priv = hwfc->internal->priv;
+    cl_image_format image_format;
+    cl_image_desc image_desc;
+    cl_int cle;
+    size_t origin[3] = { 0, 0, 0 };
+    size_t region[3];
+    cl_event events[AV_NUM_DATA_POINTERS];
+    int err, p;
+
+    if (dst->format != hwfc->sw_format)
+        return AVERROR(EINVAL);
+
+    for (p = 0;; p++) {
+        err = opencl_get_plane_format(hwfc->sw_format, p,
+                                      src->width, src->height,
+                                      &image_format, &image_desc);
+        if (err < 0) {
+            if (err == AVERROR(ENOENT))
+                err = 0;
+            break;
+        }
+
+        if (!dst->data[p]) {
+            av_log(hwfc, AV_LOG_ERROR, "Plane %d missing on "
+                   "destination frame for transfer.\n", p);
+            err = AVERROR(EINVAL);
+            break;
+        }
+
+        region[0] = image_desc.image_width;
+        region[1] = image_desc.image_height;
+        region[2] = 1;
+
+        cle = clEnqueueReadImage(priv->command_queue,
+                                 (cl_mem)src->data[p],
+                                 CL_FALSE, origin, region,
+                                 dst->linesize[p], 0,
+                                 dst->data[p],
+                                 0, NULL, &events[p]);
+        if (cle != CL_SUCCESS) {
+            av_log(hwfc, AV_LOG_ERROR, "Failed to enqueue read of "
+                   "OpenCL image plane %d: %d.\n", p, cle);
+            err = AVERROR(EIO);
+            break;
+        }
+    }
+
+    opencl_wait_events(hwfc, events, p);
+
+    return err;
+}
+
+static int opencl_transfer_data_to(AVHWFramesContext *hwfc,
+                                   AVFrame *dst, const AVFrame *src)
+{
+    OpenCLFramesContext *priv = hwfc->internal->priv;
+    cl_image_format image_format;
+    cl_image_desc image_desc;
+    cl_int cle;
+    size_t origin[3] = { 0, 0, 0 };
+    size_t region[3];
+    cl_event events[AV_NUM_DATA_POINTERS];
+    int err, p;
+
+    if (src->format != hwfc->sw_format)
+        return AVERROR(EINVAL);
+
+    for (p = 0;; p++) {
+        err = opencl_get_plane_format(hwfc->sw_format, p,
+                                      src->width, src->height,
+                                      &image_format, &image_desc);
+        if (err < 0) {
+            if (err == AVERROR(ENOENT))
+                err = 0;
+            break;
+        }
+
+        if (!src->data[p]) {
+            av_log(hwfc, AV_LOG_ERROR, "Plane %d missing on "
+                   "source frame for transfer.\n", p);
+            err = AVERROR(EINVAL);
+            break;
+        }
+
+        region[0] = image_desc.image_width;
+        region[1] = image_desc.image_height;
+        region[2] = 1;
+
+        cle = clEnqueueWriteImage(priv->command_queue,
+                                  (cl_mem)dst->data[p],
+                                  CL_FALSE, origin, region,
+                                  src->linesize[p], 0,
+                                  src->data[p],
+                                  0, NULL, &events[p]);
+        if (cle != CL_SUCCESS) {
+            av_log(hwfc, AV_LOG_ERROR, "Failed to enqueue write of "
+                   "OpenCL image plane %d: %d.\n", p, cle);
+            err = AVERROR(EIO);
+            break;
+        }
+    }
+
+    opencl_wait_events(hwfc, events, p);
+
+    return err;
+}
+
+typedef struct OpenCLMapping {
+    // The mapped addresses for each plane.
+    // The destination frame is not available when we unmap, so these
+    // need to be stored separately.
+    void *address[AV_NUM_DATA_POINTERS];
+} OpenCLMapping;
+
+static void opencl_unmap_frame(AVHWFramesContext *hwfc,
+                               HWMapDescriptor *hwmap)
+{
+    OpenCLFramesContext *priv = hwfc->internal->priv;
+    OpenCLMapping *map = hwmap->priv;
+    cl_event events[AV_NUM_DATA_POINTERS];
+    int p, e;
+    cl_int cle;
+
+    for (p = e = 0; p < FF_ARRAY_ELEMS(map->address); p++) {
+        if (!map->address[p])
+            break;
+
+        cle = clEnqueueUnmapMemObject(priv->command_queue,
+                                      (cl_mem)hwmap->source->data[p],
+                                      map->address[p],
+                                      0, NULL, &events[e]);
+        if (cle != CL_SUCCESS) {
+            av_log(hwfc, AV_LOG_ERROR, "Failed to unmap OpenCL "
+                   "image plane %d: %d.\n", p, cle);
+        }
+        ++e;
+    }
+
+    opencl_wait_events(hwfc, events, e);
+
+    av_free(map);
+}
+
+static int opencl_map_frame(AVHWFramesContext *hwfc, AVFrame *dst,
+                            const AVFrame *src, int flags)
+{
+    OpenCLFramesContext *priv = hwfc->internal->priv;
+    cl_map_flags map_flags;
+    cl_image_format image_format;
+    cl_image_desc image_desc;
+    cl_int cle;
+    OpenCLMapping *map;
+    size_t origin[3] = { 0, 0, 0 };
+    size_t region[3];
+    size_t row_pitch;
+    cl_event events[AV_NUM_DATA_POINTERS];
+    int err, p;
+
+    av_assert0(hwfc->sw_format == dst->format);
+
+    if (flags & AV_HWFRAME_MAP_OVERWRITE &&
+        !(flags & AV_HWFRAME_MAP_READ)) {
+        // This is mutually exclusive with the read/write flags, so
+        // there is no way to map with read here.
+        map_flags = CL_MAP_WRITE_INVALIDATE_REGION;
+    } else {
+        map_flags = 0;
+        if (flags & AV_HWFRAME_MAP_READ)
+            map_flags |= CL_MAP_READ;
+        if (flags & AV_HWFRAME_MAP_WRITE)
+            map_flags |= CL_MAP_WRITE;
+    }
+
+    map = av_mallocz(sizeof(*map));
+    if (!map)
+        return AVERROR(ENOMEM);
+
+    for (p = 0;; p++) {
+        err = opencl_get_plane_format(hwfc->sw_format, p,
+                                      src->width, src->height,
+                                      &image_format, &image_desc);
+        if (err == AVERROR(ENOENT))
+            break;
+        if (err < 0)
+            goto fail;
+
+        region[0] = image_desc.image_width;
+        region[1] = image_desc.image_height;
+        region[2] = 1;
+
+        map->address[p] =
+            clEnqueueMapImage(priv->command_queue,
+                              (cl_mem)src->data[p],
+                              CL_FALSE, map_flags, origin, region,
+                              &row_pitch, NULL, 0, NULL,
+                              &events[p], &cle);
+        if (!map->address[p]) {
+            av_log(hwfc, AV_LOG_ERROR, "Failed to map OpenCL "
+                   "image plane %d: %d.\n", p, cle);
+            err = AVERROR(EIO);
+            goto fail;
+        }
+
+        dst->data[p] = map->address[p];
+
+        av_log(hwfc, AV_LOG_DEBUG, "Map plane %d (%p -> %p).\n",
+               p, src->data[p], dst->data[p]);
+    }
+
+    err = opencl_wait_events(hwfc, events, p);
+    if (err < 0)
+        goto fail;
+
+    err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
+                                &opencl_unmap_frame, map);
+    if (err < 0)
+        goto fail;
+
+    dst->width  = src->width;
+    dst->height = src->height;
+
+    return 0;
+
+fail:
+    for (p = 0; p < AV_NUM_DATA_POINTERS; p++) {
+        if (!map->address[p])
+            break;
+        clEnqueueUnmapMemObject(priv->command_queue,
+                                (cl_mem)src->data[p],
+                                map->address[p],
+                                0, NULL, &events[p]);
+    }
+    if (p > 0)
+        opencl_wait_events(hwfc, events, p);
+    av_freep(&map);
+    return err;
+}
+
+#if HAVE_OPENCL_DRM_BEIGNET
+
+typedef struct DRMBeignetToOpenCLMapping {
+    AVFrame              *drm_frame;
+    AVDRMFrameDescriptor *drm_desc;
+
+    AVOpenCLFrameDescriptor frame;
+} DRMBeignetToOpenCLMapping;
+
+static void opencl_unmap_from_drm_beignet(AVHWFramesContext *dst_fc,
+                                          HWMapDescriptor *hwmap)
+{
+    DRMBeignetToOpenCLMapping *mapping = hwmap->priv;
+    cl_int cle;
+    int i;
+
+    for (i = 0; i < mapping->frame.nb_planes; i++) {
+        cle = clReleaseMemObject(mapping->frame.planes[i]);
+        if (cle != CL_SUCCESS) {
+            av_log(dst_fc, AV_LOG_ERROR, "Failed to release CL image "
+                   "of plane %d of DRM frame: %d.\n", i, cle);
+        }
+    }
+
+    av_free(mapping);
+}
+
+static int opencl_map_from_drm_beignet(AVHWFramesContext *dst_fc,
+                                       AVFrame *dst, const AVFrame *src,
+                                       int flags)
+{
+    AVOpenCLDeviceContext *hwctx = dst_fc->device_ctx->hwctx;
+    OpenCLDeviceContext    *priv = dst_fc->device_ctx->internal->priv;
+    DRMBeignetToOpenCLMapping *mapping;
+    const AVDRMFrameDescriptor *desc;
+    cl_int cle;
+    int err, i, j, p;
+
+    desc = (const AVDRMFrameDescriptor*)src->data[0];
+
+    mapping = av_mallocz(sizeof(*mapping));
+    if (!mapping)
+        return AVERROR(ENOMEM);
+
+    p = 0;
+    for (i = 0; i < desc->nb_layers; i++) {
+        const AVDRMLayerDescriptor *layer = &desc->layers[i];
+        for (j = 0; j < layer->nb_planes; j++) {
+            const AVDRMPlaneDescriptor *plane = &layer->planes[j];
+            const AVDRMObjectDescriptor *object =
+                &desc->objects[plane->object_index];
+
+            cl_import_image_info_intel image_info = {
+                .fd        = object->fd,
+                .size      = object->size,
+                .type      = CL_MEM_OBJECT_IMAGE2D,
+                .offset    = plane->offset,
+                .row_pitch = plane->pitch,
+            };
+            cl_image_desc image_desc;
+
+            err = opencl_get_plane_format(dst_fc->sw_format, p,
+                                          src->width, src->height,
+                                          &image_info.fmt,
+                                          &image_desc);
+            if (err < 0) {
+                av_log(dst_fc, AV_LOG_ERROR, "DRM frame layer %d "
+                       "plane %d is not representable in OpenCL: %d.\n",
+                       i, j, err);
+                goto fail;
+            }
+            image_info.width  = image_desc.image_width;
+            image_info.height = image_desc.image_height;
+
+            mapping->frame.planes[p] =
+                priv->clCreateImageFromFdINTEL(hwctx->context,
+                                               &image_info, &cle);
+            if (!mapping->frame.planes[p]) {
+                av_log(dst_fc, AV_LOG_ERROR, "Failed to create CL image "
+                       "from layer %d plane %d of DRM frame: %d.\n",
+                       i, j, cle);
+                err = AVERROR(EIO);
+                goto fail;
+            }
+
+            dst->data[p] = (uint8_t*)mapping->frame.planes[p];
+            mapping->frame.nb_planes = ++p;
+        }
+    }
+
+    err = ff_hwframe_map_create(dst->hw_frames_ctx, dst, src,
+                                &opencl_unmap_from_drm_beignet,
+                                mapping);
+    if (err < 0)
+        goto fail;
+
+    dst->width  = src->width;
+    dst->height = src->height;
+
+    return 0;
+
+fail:
+    for (p = 0; p < mapping->frame.nb_planes; p++) {
+        if (mapping->frame.planes[p])
+            clReleaseMemObject(mapping->frame.planes[p]);
+    }
+    av_free(mapping);
+    return err;
+}
+
+#if HAVE_OPENCL_VAAPI_BEIGNET
+
+static int opencl_map_from_vaapi(AVHWFramesContext *dst_fc,
+                                 AVFrame *dst, const AVFrame *src,
+                                 int flags)
+{
+    AVFrame *tmp;
+    int err;
+
+    tmp = av_frame_alloc();
+    if (!tmp)
+        return AVERROR(ENOMEM);
+
+    tmp->format = AV_PIX_FMT_DRM_PRIME;
+
+    err = av_hwframe_map(tmp, src, flags);
+    if (err < 0)
+        goto fail;
+
+    err = opencl_map_from_drm_beignet(dst_fc, dst, tmp, flags);
+    if (err < 0)
+        goto fail;
+
+    err = ff_hwframe_map_replace(dst, src);
+
+fail:
+    av_frame_free(&tmp);
+    return err;
+}
+
+#endif /* HAVE_OPENCL_VAAPI_BEIGNET */
+#endif /* HAVE_OPENCL_DRM_BEIGNET */
+
+static inline cl_mem_flags opencl_mem_flags_for_mapping(int map_flags)
+{
+    if ((map_flags & AV_HWFRAME_MAP_READ) &&
+        (map_flags & AV_HWFRAME_MAP_WRITE))
+        return CL_MEM_READ_WRITE;
+    else if (map_flags & AV_HWFRAME_MAP_READ)
+        return CL_MEM_READ_ONLY;
+    else if (map_flags & AV_HWFRAME_MAP_WRITE)
+        return CL_MEM_WRITE_ONLY;
+    else
+        return 0;
+}
+
+#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
+
+static void opencl_unmap_from_qsv(AVHWFramesContext *dst_fc,
+                                  HWMapDescriptor *hwmap)
+{
+    AVOpenCLFrameDescriptor    *desc = hwmap->priv;
+    OpenCLDeviceContext *device_priv = dst_fc->device_ctx->internal->priv;
+    OpenCLFramesContext *frames_priv = dst_fc->internal->priv;
+    cl_event event;
+    cl_int cle;
+    int p;
+
+    av_log(dst_fc, AV_LOG_DEBUG, "Unmap QSV/VAAPI surface from OpenCL.\n");
+
+    cle = device_priv->clEnqueueReleaseVA_APIMediaSurfacesINTEL(
+        frames_priv->command_queue, desc->nb_planes, desc->planes,
+        0, NULL, &event);
+    if (cle != CL_SUCCESS) {
+        av_log(dst_fc, AV_LOG_ERROR, "Failed to release surface "
+               "handles: %d.\n", cle);
+    }
+
+    opencl_wait_events(dst_fc, &event, 1);
+
+    for (p = 0; p < desc->nb_planes; p++) {
+        cle = clReleaseMemObject(desc->planes[p]);
+        if (cle != CL_SUCCESS) {
+            av_log(dst_fc, AV_LOG_ERROR, "Failed to release CL "
+                   "image of plane %d of QSV/VAAPI surface: %d\n",
+                   p, cle);
+        }
+    }
+
+    av_free(desc);
+}
+
+static int opencl_map_from_qsv(AVHWFramesContext *dst_fc, AVFrame *dst,
+                               const AVFrame *src, int flags)
+{
+    AVHWFramesContext *src_fc =
+        (AVHWFramesContext*)src->hw_frames_ctx->data;
+    AVOpenCLDeviceContext   *dst_dev = dst_fc->device_ctx->hwctx;
+    OpenCLDeviceContext *device_priv = dst_fc->device_ctx->internal->priv;
+    OpenCLFramesContext *frames_priv = dst_fc->internal->priv;
+    AVOpenCLFrameDescriptor *desc;
+    VASurfaceID va_surface;
+    cl_mem_flags cl_flags;
+    cl_event event;
+    cl_int cle;
+    int err, p;
+
+#if CONFIG_LIBMFX
+    if (src->format == AV_PIX_FMT_QSV) {
+        mfxFrameSurface1 *mfx_surface = (mfxFrameSurface1*)src->data[3];
+        va_surface = *(VASurfaceID*)mfx_surface->Data.MemId;
+    } else
+#endif
+        if (src->format == AV_PIX_FMT_VAAPI) {
+        va_surface = (VASurfaceID)(uintptr_t)src->data[3];
+    } else {
+        return AVERROR(ENOSYS);
+    }
+
+    cl_flags = opencl_mem_flags_for_mapping(flags);
+    if (!cl_flags)
+        return AVERROR(EINVAL);
+
+    av_log(src_fc, AV_LOG_DEBUG, "Map QSV/VAAPI surface %#x to "
+           "OpenCL.\n", va_surface);
+
+    desc = av_mallocz(sizeof(*desc));
+    if (!desc)
+        return AVERROR(ENOMEM);
+
+    // The cl_intel_va_api_media_sharing extension only supports NV12
+    // surfaces, so for now there are always exactly two planes.
+    desc->nb_planes = 2;
+
+    for (p = 0; p < desc->nb_planes; p++) {
+        desc->planes[p] =
+            device_priv->clCreateFromVA_APIMediaSurfaceINTEL(
+                dst_dev->context, cl_flags, &va_surface, p, &cle);
+        if (!desc->planes[p]) {
+            av_log(dst_fc, AV_LOG_ERROR, "Failed to create CL "
+                   "image from plane %d of QSV/VAAPI surface "
+                   "%#x: %d.\n", p, va_surface, cle);
+            err = AVERROR(EIO);
+            goto fail;
+        }
+
+        dst->data[p] = (uint8_t*)desc->planes[p];
+    }
+
+    cle = device_priv->clEnqueueAcquireVA_APIMediaSurfacesINTEL(
+        frames_priv->command_queue, desc->nb_planes, desc->planes,
+        0, NULL, &event);
+    if (cle != CL_SUCCESS) {
+        av_log(dst_fc, AV_LOG_ERROR, "Failed to acquire surface "
+               "handles: %d.\n", cle);
+        err = AVERROR(EIO);
+        goto fail;
+    }
+
+    err = opencl_wait_events(dst_fc, &event, 1);
+    if (err < 0)
+        goto fail;
+
+    err = ff_hwframe_map_create(dst->hw_frames_ctx, dst, src,
+                                &opencl_unmap_from_qsv, desc);
+    if (err < 0)
+        goto fail;
+
+    dst->width  = src->width;
+    dst->height = src->height;
+
+    return 0;
+
+fail:
+    for (p = 0; p < desc->nb_planes; p++)
+        if (desc->planes[p])
+            clReleaseMemObject(desc->planes[p]);
+    av_freep(&desc);
+    return err;
+}
+
+#endif
+
+#if HAVE_OPENCL_DXVA2
+
+static void opencl_unmap_from_dxva2(AVHWFramesContext *dst_fc,
+                                    HWMapDescriptor *hwmap)
+{
+    AVOpenCLFrameDescriptor    *desc = hwmap->priv;
+    OpenCLDeviceContext *device_priv = dst_fc->device_ctx->internal->priv;
+    OpenCLFramesContext *frames_priv = dst_fc->device_ctx->internal->priv;
+    cl_event event;
+    cl_int cle;
+
+    av_log(dst_fc, AV_LOG_DEBUG, "Unmap DXVA2 surface from OpenCL.\n");
+
+    cle = device_priv->clEnqueueReleaseDX9MediaSurfacesKHR(
+        frames_priv->command_queue, desc->nb_planes, desc->planes,
+        0, NULL, &event);
+    if (cle != CL_SUCCESS) {
+        av_log(dst_fc, AV_LOG_ERROR, "Failed to release surface "
+               "handle: %d.\n", cle);
+        return;
+    }
+
+    opencl_wait_events(dst_fc, &event, 1);
+}
+
+static int opencl_map_from_dxva2(AVHWFramesContext *dst_fc, AVFrame *dst,
+                                 const AVFrame *src, int flags)
+{
+    AVHWFramesContext *src_fc =
+        (AVHWFramesContext*)src->hw_frames_ctx->data;
+    AVDXVA2FramesContext  *src_hwctx = src_fc->hwctx;
+    OpenCLDeviceContext *device_priv = dst_fc->device_ctx->internal->priv;
+    OpenCLFramesContext *frames_priv = dst_fc->internal->priv;
+    AVOpenCLFrameDescriptor *desc;
+    cl_event event;
+    cl_int cle;
+    int err, i;
+
+    av_log(dst_fc, AV_LOG_DEBUG, "Map DXVA2 surface %p to "
+           "OpenCL.\n", src->data[3]);
+
+    for (i = 0; i < src_hwctx->nb_surfaces; i++) {
+        if (src_hwctx->surfaces[i] == (IDirect3DSurface9*)src->data[3])
+            break;
+    }
+    if (i >= src_hwctx->nb_surfaces) {
+        av_log(dst_fc, AV_LOG_ERROR, "Trying to map from a surface which "
+               "is not in the mapped frames context.\n");
+        return AVERROR(EINVAL);
+    }
+
+    desc = &frames_priv->mapped_frames[i];
+
+    cle = device_priv->clEnqueueAcquireDX9MediaSurfacesKHR(
+        frames_priv->command_queue, desc->nb_planes, desc->planes,
+        0, NULL, &event);
+    if (cle != CL_SUCCESS) {
+        av_log(dst_fc, AV_LOG_ERROR, "Failed to acquire surface "
+               "handle: %d.\n", cle);
+        return AVERROR(EIO);
+    }
+
+    err = opencl_wait_events(dst_fc, &event, 1);
+    if (err < 0)
+        goto fail;
+
+    for (i = 0; i < desc->nb_planes; i++)
+        dst->data[i] = (uint8_t*)desc->planes[i];
+
+    err = ff_hwframe_map_create(dst->hw_frames_ctx, dst, src,
+                                &opencl_unmap_from_dxva2, desc);
+    if (err < 0)
+        goto fail;
+
+    dst->width  = src->width;
+    dst->height = src->height;
+
+    return 0;
+
+fail:
+    cle = device_priv->clEnqueueReleaseDX9MediaSurfacesKHR(
+        frames_priv->command_queue, desc->nb_planes, desc->planes,
+        0, NULL, &event);
+    if (cle == CL_SUCCESS)
+        opencl_wait_events(dst_fc, &event, 1);
+    return err;
+}
+
+static int opencl_frames_derive_from_dxva2(AVHWFramesContext *dst_fc,
+                                           AVHWFramesContext *src_fc, int flags)
+{
+    AVOpenCLDeviceContext   *dst_dev = dst_fc->device_ctx->hwctx;
+    AVDXVA2FramesContext  *src_hwctx = src_fc->hwctx;
+    OpenCLDeviceContext *device_priv = dst_fc->device_ctx->internal->priv;
+    OpenCLFramesContext *frames_priv = dst_fc->internal->priv;
+    cl_mem_flags cl_flags;
+    cl_int cle;
+    int err, i, p, nb_planes;
+
+    if (src_fc->sw_format != AV_PIX_FMT_NV12) {
+        av_log(dst_fc, AV_LOG_ERROR, "Only NV12 textures are supported "
+               "for DXVA2 to OpenCL mapping.\n");
+        return AVERROR(EINVAL);
+    }
+    nb_planes = 2;
+
+    if (src_fc->initial_pool_size == 0) {
+        av_log(dst_fc, AV_LOG_ERROR, "Only fixed-size pools are supported "
+               "for DXVA2 to OpenCL mapping.\n");
+        return AVERROR(EINVAL);
+    }
+
+    cl_flags = opencl_mem_flags_for_mapping(flags);
+    if (!cl_flags)
+        return AVERROR(EINVAL);
+
+    frames_priv->nb_mapped_frames = src_hwctx->nb_surfaces;
+
+    frames_priv->mapped_frames =
+        av_mallocz_array(frames_priv->nb_mapped_frames,
+                         sizeof(*frames_priv->mapped_frames));
+    if (!frames_priv->mapped_frames)
+        return AVERROR(ENOMEM);
+
+    for (i = 0; i < frames_priv->nb_mapped_frames; i++) {
+        AVOpenCLFrameDescriptor *desc = &frames_priv->mapped_frames[i];
+        cl_dx9_surface_info_khr surface_info = {
+            .resource      = src_hwctx->surfaces[i],
+            .shared_handle = NULL,
+        };
+        desc->nb_planes = nb_planes;
+        for (p = 0; p < nb_planes; p++) {
+            desc->planes[p] =
+                device_priv->clCreateFromDX9MediaSurfaceKHR(
+                    dst_dev->context, cl_flags,
+                    device_priv->dx9_media_adapter_type,
+                    &surface_info, p, &cle);
+            if (!desc->planes[p]) {
+                av_log(dst_fc, AV_LOG_ERROR, "Failed to create CL "
+                       "image from plane %d of DXVA2 surface %d: %d.\n",
+                       p, i, cle);
+                err = AVERROR(EIO);
+                goto fail;
+            }
+        }
+    }
+
+    return 0;
+
+fail:
+    for (i = 0; i < frames_priv->nb_mapped_frames; i++) {
+        AVOpenCLFrameDescriptor *desc = &frames_priv->mapped_frames[i];
+        for (p = 0; p < desc->nb_planes; p++) {
+            if (desc->planes[p])
+                clReleaseMemObject(desc->planes[p]);
+        }
+    }
+    av_freep(&frames_priv->mapped_frames);
+    frames_priv->nb_mapped_frames = 0;
+    return err;
+}
+
+#endif
+
+#if HAVE_OPENCL_D3D11
+
+static void opencl_unmap_from_d3d11(AVHWFramesContext *dst_fc,
+                                    HWMapDescriptor *hwmap)
+{
+    AVOpenCLFrameDescriptor    *desc = hwmap->priv;
+    OpenCLDeviceContext *device_priv = dst_fc->device_ctx->internal->priv;
+    OpenCLFramesContext *frames_priv = dst_fc->device_ctx->internal->priv;
+    cl_event event;
+    cl_int cle;
+
+    cle = device_priv->clEnqueueReleaseD3D11ObjectsKHR(
+        frames_priv->command_queue, desc->nb_planes, desc->planes,
+        0, NULL, &event);
+    if (cle != CL_SUCCESS) {
+        av_log(dst_fc, AV_LOG_ERROR, "Failed to release surface "
+               "handle: %d.\n", cle);
+    }
+
+    opencl_wait_events(dst_fc, &event, 1);
+}
+
+static int opencl_map_from_d3d11(AVHWFramesContext *dst_fc, AVFrame *dst,
+                                 const AVFrame *src, int flags)
+{
+    OpenCLDeviceContext  *device_priv = dst_fc->device_ctx->internal->priv;
+    OpenCLFramesContext  *frames_priv = dst_fc->internal->priv;
+    AVOpenCLFrameDescriptor *desc;
+    cl_event event;
+    cl_int cle;
+    int err, index, i;
+
+    index = (intptr_t)src->data[1];
+    if (index >= frames_priv->nb_mapped_frames) {
+        av_log(dst_fc, AV_LOG_ERROR, "Texture array index out of range for "
+               "mapping: %d >= %d.\n", index, frames_priv->nb_mapped_frames);
+        return AVERROR(EINVAL);
+    }
+
+    av_log(dst_fc, AV_LOG_DEBUG, "Map D3D11 texture %d to OpenCL.\n",
+           index);
+
+    desc = &frames_priv->mapped_frames[index];
+
+    cle = device_priv->clEnqueueAcquireD3D11ObjectsKHR(
+        frames_priv->command_queue, desc->nb_planes, desc->planes,
+        0, NULL, &event);
+    if (cle != CL_SUCCESS) {
+        av_log(dst_fc, AV_LOG_ERROR, "Failed to acquire surface "
+               "handle: %d.\n", cle);
+        return AVERROR(EIO);
+    }
+
+    err = opencl_wait_events(dst_fc, &event, 1);
+    if (err < 0)
+        goto fail;
+
+    for (i = 0; i < desc->nb_planes; i++)
+        dst->data[i] = (uint8_t*)desc->planes[i];
+
+    err = ff_hwframe_map_create(dst->hw_frames_ctx, dst, src,
+                                &opencl_unmap_from_d3d11, desc);
+    if (err < 0)
+        goto fail;
+
+    dst->width  = src->width;
+    dst->height = src->height;
+
+    return 0;
+
+fail:
+    cle = device_priv->clEnqueueReleaseD3D11ObjectsKHR(
+        frames_priv->command_queue, desc->nb_planes, desc->planes,
+        0, NULL, &event);
+    if (cle == CL_SUCCESS)
+        opencl_wait_events(dst_fc, &event, 1);
+    return err;
+}
+
+static int opencl_frames_derive_from_d3d11(AVHWFramesContext *dst_fc,
+                                           AVHWFramesContext *src_fc, int flags)
+{
+    AVOpenCLDeviceContext    *dst_dev = dst_fc->device_ctx->hwctx;
+    AVD3D11VAFramesContext *src_hwctx = src_fc->hwctx;
+    OpenCLDeviceContext  *device_priv = dst_fc->device_ctx->internal->priv;
+    OpenCLFramesContext  *frames_priv = dst_fc->internal->priv;
+    cl_mem_flags cl_flags;
+    cl_int cle;
+    int err, i, p, nb_planes;
+
+    if (src_fc->sw_format != AV_PIX_FMT_NV12) {
+        av_log(dst_fc, AV_LOG_ERROR, "Only NV12 textures are supported "
+               "for D3D11 to OpenCL mapping.\n");
+        return AVERROR(EINVAL);
+    }
+    nb_planes = 2;
+
+    if (src_fc->initial_pool_size == 0) {
+        av_log(dst_fc, AV_LOG_ERROR, "Only fixed-size pools are supported "
+               "for D3D11 to OpenCL mapping.\n");
+        return AVERROR(EINVAL);
+    }
+
+    cl_flags = opencl_mem_flags_for_mapping(flags);
+    if (!cl_flags)
+        return AVERROR(EINVAL);
+
+    frames_priv->nb_mapped_frames = src_fc->initial_pool_size;
+
+    frames_priv->mapped_frames =
+        av_mallocz_array(frames_priv->nb_mapped_frames,
+                         sizeof(*frames_priv->mapped_frames));
+    if (!frames_priv->mapped_frames)
+        return AVERROR(ENOMEM);
+
+    for (i = 0; i < frames_priv->nb_mapped_frames; i++) {
+        AVOpenCLFrameDescriptor *desc = &frames_priv->mapped_frames[i];
+        desc->nb_planes = nb_planes;
+        for (p = 0; p < nb_planes; p++) {
+            UINT subresource = 2 * i + p;
+
+            desc->planes[p] =
+                device_priv->clCreateFromD3D11Texture2DKHR(
+                    dst_dev->context, cl_flags, src_hwctx->texture,
+                    subresource, &cle);
+            if (!desc->planes[p]) {
+                av_log(dst_fc, AV_LOG_ERROR, "Failed to create CL "
+                       "image from plane %d of D3D texture "
+                       "index %d (subresource %u): %d.\n",
+                       p, i, (unsigned int)subresource, cle);
+                err = AVERROR(EIO);
+                goto fail;
+            }
+        }
+    }
+
+    return 0;
+
+fail:
+    for (i = 0; i < frames_priv->nb_mapped_frames; i++) {
+        AVOpenCLFrameDescriptor *desc = &frames_priv->mapped_frames[i];
+        for (p = 0; p < desc->nb_planes; p++) {
+            if (desc->planes[p])
+                clReleaseMemObject(desc->planes[p]);
+        }
+    }
+    av_freep(&frames_priv->mapped_frames);
+    frames_priv->nb_mapped_frames = 0;
+    return err;
+}
+
+#endif
+
+#if HAVE_OPENCL_DRM_ARM
+
+typedef struct DRMARMtoOpenCLMapping {
+    int nb_objects;
+    cl_mem object_buffers[AV_DRM_MAX_PLANES];
+    int nb_planes;
+    cl_mem plane_images[AV_DRM_MAX_PLANES];
+} DRMARMtoOpenCLMapping;
+
+static void opencl_unmap_from_drm_arm(AVHWFramesContext *dst_fc,
+                                      HWMapDescriptor *hwmap)
+{
+    DRMARMtoOpenCLMapping *mapping = hwmap->priv;
+    int i;
+
+    for (i = 0; i < mapping->nb_planes; i++)
+        clReleaseMemObject(mapping->plane_images[i]);
+
+    for (i = 0; i < mapping->nb_objects; i++)
+        clReleaseMemObject(mapping->object_buffers[i]);
+
+    av_free(mapping);
+}
+
+static int opencl_map_from_drm_arm(AVHWFramesContext *dst_fc, AVFrame *dst,
+                                   const AVFrame *src, int flags)
+{
+    AVHWFramesContext *src_fc =
+        (AVHWFramesContext*)src->hw_frames_ctx->data;
+    AVOpenCLDeviceContext *dst_dev = dst_fc->device_ctx->hwctx;
+    const AVDRMFrameDescriptor *desc;
+    DRMARMtoOpenCLMapping *mapping = NULL;
+    cl_mem_flags cl_flags;
+    const cl_import_properties_arm props[3] = {
+        CL_IMPORT_TYPE_ARM, CL_IMPORT_TYPE_DMA_BUF_ARM, 0,
+    };
+    cl_int cle;
+    int err, i, j;
+
+    desc = (const AVDRMFrameDescriptor*)src->data[0];
+
+    cl_flags = opencl_mem_flags_for_mapping(flags);
+    if (!cl_flags)
+        return AVERROR(EINVAL);
+
+    mapping = av_mallocz(sizeof(*mapping));
+    if (!mapping)
+        return AVERROR(ENOMEM);
+
+    mapping->nb_objects = desc->nb_objects;
+    for (i = 0; i < desc->nb_objects; i++) {
+        int fd = desc->objects[i].fd;
+
+        av_log(dst_fc, AV_LOG_DEBUG, "Map DRM PRIME fd %d to OpenCL.\n", fd);
+
+        if (desc->objects[i].format_modifier) {
+            av_log(dst_fc, AV_LOG_DEBUG, "Warning: object %d fd %d has "
+                   "nonzero format modifier %"PRId64", result may not "
+                   "be as expected.\n", i, fd,
+                   desc->objects[i].format_modifier);
+        }
+
+        mapping->object_buffers[i] =
+            clImportMemoryARM(dst_dev->context, cl_flags, props,
+                              &fd, desc->objects[i].size, &cle);
+        if (!mapping->object_buffers[i]) {
+            av_log(dst_fc, AV_LOG_ERROR, "Failed to create CL buffer "
+                   "from object %d (fd %d, size %"SIZE_SPECIFIER") of DRM frame: %d.\n",
+                   i, fd, desc->objects[i].size, cle);
+            err = AVERROR(EIO);
+            goto fail;
+        }
+    }
+
+    mapping->nb_planes = 0;
+    for (i = 0; i < desc->nb_layers; i++) {
+        const AVDRMLayerDescriptor *layer = &desc->layers[i];
+
+        for (j = 0; j < layer->nb_planes; j++) {
+            const AVDRMPlaneDescriptor *plane = &layer->planes[j];
+            cl_mem plane_buffer;
+            cl_image_format image_format;
+            cl_image_desc   image_desc;
+            cl_buffer_region region;
+            int p = mapping->nb_planes;
+
+            err = opencl_get_plane_format(src_fc->sw_format, p,
+                                          src_fc->width, src_fc->height,
+                                          &image_format, &image_desc);
+            if (err < 0) {
+                av_log(dst_fc, AV_LOG_ERROR, "Invalid plane %d (DRM "
+                       "layer %d plane %d): %d.\n", p, i, j, err);
+                goto fail;
+            }
+
+            region.origin = plane->offset;
+            region.size   = image_desc.image_row_pitch *
+                            image_desc.image_height;
+
+            plane_buffer =
+                clCreateSubBuffer(mapping->object_buffers[plane->object_index],
+                                  cl_flags,
+                                  CL_BUFFER_CREATE_TYPE_REGION,
+                                  &region, &cle);
+            if (!plane_buffer) {
+                av_log(dst_fc, AV_LOG_ERROR, "Failed to create sub-buffer "
+                       "for plane %d: %d.\n", p, cle);
+                err = AVERROR(EIO);
+                goto fail;
+            }
+
+            image_desc.buffer = plane_buffer;
+
+            mapping->plane_images[p] =
+                clCreateImage(dst_dev->context, cl_flags,
+                              &image_format, &image_desc, NULL, &cle);
+
+            // Unreference the sub-buffer immediately - we don't need it
+            // directly and a reference is held by the image.
+            clReleaseMemObject(plane_buffer);
+
+            if (!mapping->plane_images[p]) {
+                av_log(dst_fc, AV_LOG_ERROR, "Failed to create image "
+                       "for plane %d: %d.\n", p, cle);
+                err = AVERROR(EIO);
+                goto fail;
+            }
+
+            ++mapping->nb_planes;
+        }
+    }
+
+    for (i = 0; i < mapping->nb_planes; i++)
+        dst->data[i] = (uint8_t*)mapping->plane_images[i];
+
+    err = ff_hwframe_map_create(dst->hw_frames_ctx, dst, src,
+                                &opencl_unmap_from_drm_arm, mapping);
+    if (err < 0)
+        goto fail;
+
+    dst->width  = src->width;
+    dst->height = src->height;
+
+    return 0;
+
+fail:
+    for (i = 0; i < mapping->nb_planes; i++) {
+        clReleaseMemObject(mapping->plane_images[i]);
+    }
+    for (i = 0; i < mapping->nb_objects; i++) {
+        if (mapping->object_buffers[i])
+            clReleaseMemObject(mapping->object_buffers[i]);
+    }
+    av_free(mapping);
+    return err;
+}
+
+#endif
+
+static int opencl_map_from(AVHWFramesContext *hwfc, AVFrame *dst,
+                           const AVFrame *src, int flags)
+{
+    av_assert0(src->format == AV_PIX_FMT_OPENCL);
+    if (hwfc->sw_format != dst->format)
+        return AVERROR(ENOSYS);
+    return opencl_map_frame(hwfc, dst, src, flags);
+}
+
+static int opencl_map_to(AVHWFramesContext *hwfc, AVFrame *dst,
+                         const AVFrame *src, int flags)
+{
+    av_unused OpenCLDeviceContext *priv = hwfc->device_ctx->internal->priv;
+    av_assert0(dst->format == AV_PIX_FMT_OPENCL);
+    switch (src->format) {
+#if HAVE_OPENCL_DRM_BEIGNET
+    case AV_PIX_FMT_DRM_PRIME:
+        if (priv->beignet_drm_mapping_usable)
+            return opencl_map_from_drm_beignet(hwfc, dst, src, flags);
+#endif
+#if HAVE_OPENCL_VAAPI_BEIGNET
+    case AV_PIX_FMT_VAAPI:
+        if (priv->beignet_drm_mapping_usable)
+            return opencl_map_from_vaapi(hwfc, dst, src, flags);
+#endif
+#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
+    case AV_PIX_FMT_QSV:
+    case AV_PIX_FMT_VAAPI:
+        if (priv->qsv_mapping_usable)
+            return opencl_map_from_qsv(hwfc, dst, src, flags);
+#endif
+#if HAVE_OPENCL_DXVA2
+    case AV_PIX_FMT_DXVA2_VLD:
+        if (priv->dxva2_mapping_usable)
+            return opencl_map_from_dxva2(hwfc, dst, src, flags);
+#endif
+#if HAVE_OPENCL_D3D11
+    case AV_PIX_FMT_D3D11:
+        if (priv->d3d11_mapping_usable)
+            return opencl_map_from_d3d11(hwfc, dst, src, flags);
+#endif
+#if HAVE_OPENCL_DRM_ARM
+    case AV_PIX_FMT_DRM_PRIME:
+        if (priv->drm_arm_mapping_usable)
+            return opencl_map_from_drm_arm(hwfc, dst, src, flags);
+#endif
+    }
+    return AVERROR(ENOSYS);
+}
+
+static int opencl_frames_derive_to(AVHWFramesContext *dst_fc,
+                                   AVHWFramesContext *src_fc, int flags)
+{
+    av_unused OpenCLDeviceContext *priv = dst_fc->device_ctx->internal->priv;
+    switch (src_fc->device_ctx->type) {
+#if HAVE_OPENCL_DRM_BEIGNET
+    case AV_HWDEVICE_TYPE_DRM:
+        if (!priv->beignet_drm_mapping_usable)
+            return AVERROR(ENOSYS);
+        break;
+#endif
+#if HAVE_OPENCL_VAAPI_BEIGNET
+    case AV_HWDEVICE_TYPE_VAAPI:
+        if (!priv->beignet_drm_mapping_usable)
+            return AVERROR(ENOSYS);
+        break;
+#endif
+#if HAVE_OPENCL_VAAPI_INTEL_MEDIA
+    case AV_HWDEVICE_TYPE_QSV:
+    case AV_HWDEVICE_TYPE_VAAPI:
+        if (!priv->qsv_mapping_usable)
+            return AVERROR(ENOSYS);
+        break;
+#endif
+#if HAVE_OPENCL_DXVA2
+    case AV_HWDEVICE_TYPE_DXVA2:
+        if (!priv->dxva2_mapping_usable)
+            return AVERROR(ENOSYS);
+        {
+            int err;
+            err = opencl_frames_derive_from_dxva2(dst_fc, src_fc, flags);
+            if (err < 0)
+                return err;
+        }
+        break;
+#endif
+#if HAVE_OPENCL_D3D11
+    case AV_HWDEVICE_TYPE_D3D11VA:
+        if (!priv->d3d11_mapping_usable)
+            return AVERROR(ENOSYS);
+        {
+            int err;
+            err = opencl_frames_derive_from_d3d11(dst_fc, src_fc, flags);
+            if (err < 0)
+                return err;
+        }
+        break;
+#endif
+#if HAVE_OPENCL_DRM_ARM
+    case AV_HWDEVICE_TYPE_DRM:
+        if (!priv->drm_arm_mapping_usable)
+            return AVERROR(ENOSYS);
+        break;
+#endif
+    default:
+        return AVERROR(ENOSYS);
+    }
+    return opencl_frames_init_command_queue(dst_fc);
+}
+
+const HWContextType ff_hwcontext_type_opencl = {
+    .type                   = AV_HWDEVICE_TYPE_OPENCL,
+    .name                   = "OpenCL",
+
+    .device_hwctx_size      = sizeof(AVOpenCLDeviceContext),
+    .device_priv_size       = sizeof(OpenCLDeviceContext),
+    .frames_hwctx_size      = sizeof(AVOpenCLFramesContext),
+    .frames_priv_size       = sizeof(OpenCLFramesContext),
+
+    .device_create          = &opencl_device_create,
+    .device_derive          = &opencl_device_derive,
+    .device_init            = &opencl_device_init,
+    .device_uninit          = &opencl_device_uninit,
+
+    .frames_get_constraints = &opencl_frames_get_constraints,
+    .frames_init            = &opencl_frames_init,
+    .frames_uninit          = &opencl_frames_uninit,
+    .frames_get_buffer      = &opencl_get_buffer,
+
+    .transfer_get_formats   = &opencl_transfer_get_formats,
+    .transfer_data_to       = &opencl_transfer_data_to,
+    .transfer_data_from     = &opencl_transfer_data_from,
+
+    .map_from               = &opencl_map_from,
+    .map_to                 = &opencl_map_to,
+    .frames_derive_to       = &opencl_frames_derive_to,
+
+    .pix_fmts = (const enum AVPixelFormat[]) {
+        AV_PIX_FMT_OPENCL,
+        AV_PIX_FMT_NONE
+    },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_opencl.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_opencl.h
new file mode 100644
index 000000000..ef54486c9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_opencl.h
@@ -0,0 +1,100 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HWCONTEXT_OPENCL_H
+#define AVUTIL_HWCONTEXT_OPENCL_H
+
+#ifdef __APPLE__
+#include <OpenCL/cl.h>
+#else
+#include <CL/cl.h>
+#endif
+
+#include "frame.h"
+
+/**
+ * @file
+ * API-specific header for AV_HWDEVICE_TYPE_OPENCL.
+ *
+ * Pools allocated internally are always dynamic, and are primarily intended
+ * to be used in OpenCL-only cases.  If interoperation is required, it is
+ * typically required to allocate frames in the other API and then map the
+ * frames context to OpenCL with av_hwframe_ctx_create_derived().
+ */
+
+/**
+ * OpenCL frame descriptor for pool allocation.
+ *
+ * In user-allocated pools, AVHWFramesContext.pool must return AVBufferRefs
+ * with the data pointer pointing at an object of this type describing the
+ * planes of the frame.
+ */
+typedef struct AVOpenCLFrameDescriptor {
+    /**
+     * Number of planes in the frame.
+     */
+    int nb_planes;
+    /**
+     * OpenCL image2d objects for each plane of the frame.
+     */
+    cl_mem planes[AV_NUM_DATA_POINTERS];
+} AVOpenCLFrameDescriptor;
+
+/**
+ * OpenCL device details.
+ *
+ * Allocated as AVHWDeviceContext.hwctx
+ */
+typedef struct AVOpenCLDeviceContext {
+    /**
+     * The primary device ID of the device.  If multiple OpenCL devices
+     * are associated with the context then this is the one which will
+     * be used for all operations internal to FFmpeg.
+     */
+    cl_device_id device_id;
+    /**
+     * The OpenCL context which will contain all operations and frames on
+     * this device.
+     */
+    cl_context context;
+    /**
+     * The default command queue for this device, which will be used by all
+     * frames contexts which do not have their own command queue.  If not
+     * intialised by the user, a default queue will be created on the
+     * primary device.
+     */
+    cl_command_queue command_queue;
+} AVOpenCLDeviceContext;
+
+/**
+ * OpenCL-specific data associated with a frame pool.
+ *
+ * Allocated as AVHWFramesContext.hwctx.
+ */
+typedef struct AVOpenCLFramesContext {
+    /**
+     * The command queue used for internal asynchronous operations on this
+     * device (av_hwframe_transfer_data(), av_hwframe_map()).
+     *
+     * If this is not set, the command queue from the associated device is
+     * used instead.
+     */
+    cl_command_queue command_queue;
+} AVOpenCLFramesContext;
+
+#endif /* AVUTIL_HWCONTEXT_OPENCL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_qsv.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_qsv.c
new file mode 100644
index 000000000..59e4ed915
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_qsv.c
@@ -0,0 +1,1278 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include <mfx/mfxvideo.h>
+
+#include "config.h"
+
+#if HAVE_PTHREADS
+#include <pthread.h>
+#endif
+
+#if CONFIG_VAAPI
+#include "hwcontext_vaapi.h"
+#endif
+#if CONFIG_DXVA2
+#include "hwcontext_dxva2.h"
+#endif
+
+#include "buffer.h"
+#include "common.h"
+#include "hwcontext.h"
+#include "hwcontext_internal.h"
+#include "hwcontext_qsv.h"
+#include "mem.h"
+#include "pixfmt.h"
+#include "pixdesc.h"
+#include "time.h"
+
+typedef struct QSVDevicePriv {
+    AVBufferRef *child_device_ctx;
+} QSVDevicePriv;
+
+typedef struct QSVDeviceContext {
+    mfxHDL              handle;
+    mfxHandleType       handle_type;
+    mfxVersion          ver;
+    mfxIMPL             impl;
+
+    enum AVHWDeviceType child_device_type;
+    enum AVPixelFormat  child_pix_fmt;
+} QSVDeviceContext;
+
+typedef struct QSVFramesContext {
+    mfxSession session_download;
+    int session_download_init;
+    mfxSession session_upload;
+    int session_upload_init;
+#if HAVE_PTHREADS
+    pthread_mutex_t session_lock;
+    pthread_cond_t session_cond;
+#endif
+
+    AVBufferRef *child_frames_ref;
+    mfxFrameSurface1 *surfaces_internal;
+    int             nb_surfaces_used;
+
+    // used in the frame allocator for non-opaque surfaces
+    mfxMemId *mem_ids;
+    // used in the opaque alloc request for opaque surfaces
+    mfxFrameSurface1 **surface_ptrs;
+
+    mfxExtOpaqueSurfaceAlloc opaque_alloc;
+    mfxExtBuffer *ext_buffers[1];
+} QSVFramesContext;
+
+static const struct {
+    mfxHandleType handle_type;
+    enum AVHWDeviceType device_type;
+    enum AVPixelFormat  pix_fmt;
+} supported_handle_types[] = {
+#if CONFIG_VAAPI
+    { MFX_HANDLE_VA_DISPLAY,          AV_HWDEVICE_TYPE_VAAPI, AV_PIX_FMT_VAAPI },
+#endif
+#if CONFIG_DXVA2
+    { MFX_HANDLE_D3D9_DEVICE_MANAGER, AV_HWDEVICE_TYPE_DXVA2, AV_PIX_FMT_DXVA2_VLD },
+#endif
+    { 0 },
+};
+
+static const struct {
+    enum AVPixelFormat pix_fmt;
+    uint32_t           fourcc;
+} supported_pixel_formats[] = {
+    { AV_PIX_FMT_NV12, MFX_FOURCC_NV12 },
+    { AV_PIX_FMT_BGRA, MFX_FOURCC_RGB4 },
+    { AV_PIX_FMT_P010, MFX_FOURCC_P010 },
+    { AV_PIX_FMT_PAL8, MFX_FOURCC_P8   },
+};
+
+static uint32_t qsv_fourcc_from_pix_fmt(enum AVPixelFormat pix_fmt)
+{
+    int i;
+    for (i = 0; i < FF_ARRAY_ELEMS(supported_pixel_formats); i++) {
+        if (supported_pixel_formats[i].pix_fmt == pix_fmt)
+            return supported_pixel_formats[i].fourcc;
+    }
+    return 0;
+}
+
+static int qsv_device_init(AVHWDeviceContext *ctx)
+{
+    AVQSVDeviceContext *hwctx = ctx->hwctx;
+    QSVDeviceContext       *s = ctx->internal->priv;
+
+    mfxStatus err;
+    int i;
+
+    for (i = 0; supported_handle_types[i].handle_type; i++) {
+        err = MFXVideoCORE_GetHandle(hwctx->session, supported_handle_types[i].handle_type,
+                                     &s->handle);
+        if (err == MFX_ERR_NONE) {
+            s->handle_type       = supported_handle_types[i].handle_type;
+            s->child_device_type = supported_handle_types[i].device_type;
+            s->child_pix_fmt     = supported_handle_types[i].pix_fmt;
+            break;
+        }
+    }
+    if (!s->handle) {
+        av_log(ctx, AV_LOG_VERBOSE, "No supported hw handle could be retrieved "
+               "from the session\n");
+    }
+
+    err = MFXQueryIMPL(hwctx->session, &s->impl);
+    if (err == MFX_ERR_NONE)
+        err = MFXQueryVersion(hwctx->session, &s->ver);
+    if (err != MFX_ERR_NONE) {
+        av_log(ctx, AV_LOG_ERROR, "Error querying the session attributes\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+
+static void qsv_frames_uninit(AVHWFramesContext *ctx)
+{
+    QSVFramesContext *s = ctx->internal->priv;
+
+    if (s->session_download) {
+        MFXVideoVPP_Close(s->session_download);
+        MFXClose(s->session_download);
+    }
+    s->session_download = NULL;
+    s->session_download_init = 0;
+
+    if (s->session_upload) {
+        MFXVideoVPP_Close(s->session_upload);
+        MFXClose(s->session_upload);
+    }
+    s->session_upload = NULL;
+    s->session_upload_init = 0;
+
+#if HAVE_PTHREADS
+    pthread_mutex_destroy(&s->session_lock);
+    pthread_cond_destroy(&s->session_cond);
+#endif
+
+    av_freep(&s->mem_ids);
+    av_freep(&s->surface_ptrs);
+    av_freep(&s->surfaces_internal);
+    av_buffer_unref(&s->child_frames_ref);
+}
+
+static void qsv_pool_release_dummy(void *opaque, uint8_t *data)
+{
+}
+
+static AVBufferRef *qsv_pool_alloc(void *opaque, int size)
+{
+    AVHWFramesContext    *ctx = (AVHWFramesContext*)opaque;
+    QSVFramesContext       *s = ctx->internal->priv;
+    AVQSVFramesContext *hwctx = ctx->hwctx;
+
+    if (s->nb_surfaces_used < hwctx->nb_surfaces) {
+        s->nb_surfaces_used++;
+        return av_buffer_create((uint8_t*)(s->surfaces_internal + s->nb_surfaces_used - 1),
+                                sizeof(*hwctx->surfaces), qsv_pool_release_dummy, NULL, 0);
+    }
+
+    return NULL;
+}
+
+static int qsv_init_child_ctx(AVHWFramesContext *ctx)
+{
+    AVQSVFramesContext     *hwctx = ctx->hwctx;
+    QSVFramesContext           *s = ctx->internal->priv;
+    QSVDeviceContext *device_priv = ctx->device_ctx->internal->priv;
+
+    AVBufferRef *child_device_ref = NULL;
+    AVBufferRef *child_frames_ref = NULL;
+
+    AVHWDeviceContext *child_device_ctx;
+    AVHWFramesContext *child_frames_ctx;
+
+    int i, ret = 0;
+
+    if (!device_priv->handle) {
+        av_log(ctx, AV_LOG_ERROR,
+               "Cannot create a non-opaque internal surface pool without "
+               "a hardware handle\n");
+        return AVERROR(EINVAL);
+    }
+
+    child_device_ref = av_hwdevice_ctx_alloc(device_priv->child_device_type);
+    if (!child_device_ref)
+        return AVERROR(ENOMEM);
+    child_device_ctx   = (AVHWDeviceContext*)child_device_ref->data;
+
+#if CONFIG_VAAPI
+    if (child_device_ctx->type == AV_HWDEVICE_TYPE_VAAPI) {
+        AVVAAPIDeviceContext *child_device_hwctx = child_device_ctx->hwctx;
+        child_device_hwctx->display = (VADisplay)device_priv->handle;
+    }
+#endif
+#if CONFIG_DXVA2
+    if (child_device_ctx->type == AV_HWDEVICE_TYPE_DXVA2) {
+        AVDXVA2DeviceContext *child_device_hwctx = child_device_ctx->hwctx;
+        child_device_hwctx->devmgr = (IDirect3DDeviceManager9*)device_priv->handle;
+    }
+#endif
+
+    ret = av_hwdevice_ctx_init(child_device_ref);
+    if (ret < 0) {
+        av_log(ctx, AV_LOG_ERROR, "Error initializing a child device context\n");
+        goto fail;
+    }
+
+    child_frames_ref = av_hwframe_ctx_alloc(child_device_ref);
+    if (!child_frames_ref) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+    child_frames_ctx = (AVHWFramesContext*)child_frames_ref->data;
+
+    child_frames_ctx->format            = device_priv->child_pix_fmt;
+    child_frames_ctx->sw_format         = ctx->sw_format;
+    child_frames_ctx->initial_pool_size = ctx->initial_pool_size;
+    child_frames_ctx->width             = FFALIGN(ctx->width, 16);
+    child_frames_ctx->height            = FFALIGN(ctx->height, 16);
+
+#if CONFIG_DXVA2
+    if (child_device_ctx->type == AV_HWDEVICE_TYPE_DXVA2) {
+        AVDXVA2FramesContext *child_frames_hwctx = child_frames_ctx->hwctx;
+        if (hwctx->frame_type & MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET)
+            child_frames_hwctx->surface_type = DXVA2_VideoProcessorRenderTarget;
+        else
+            child_frames_hwctx->surface_type = DXVA2_VideoDecoderRenderTarget;
+    }
+#endif
+
+    ret = av_hwframe_ctx_init(child_frames_ref);
+    if (ret < 0) {
+        av_log(ctx, AV_LOG_ERROR, "Error initializing a child frames context\n");
+        goto fail;
+    }
+
+#if CONFIG_VAAPI
+    if (child_device_ctx->type == AV_HWDEVICE_TYPE_VAAPI) {
+        AVVAAPIFramesContext *child_frames_hwctx = child_frames_ctx->hwctx;
+        for (i = 0; i < ctx->initial_pool_size; i++)
+            s->surfaces_internal[i].Data.MemId = child_frames_hwctx->surface_ids + i;
+        hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET;
+    }
+#endif
+#if CONFIG_DXVA2
+    if (child_device_ctx->type == AV_HWDEVICE_TYPE_DXVA2) {
+        AVDXVA2FramesContext *child_frames_hwctx = child_frames_ctx->hwctx;
+        for (i = 0; i < ctx->initial_pool_size; i++)
+            s->surfaces_internal[i].Data.MemId = (mfxMemId)child_frames_hwctx->surfaces[i];
+        if (child_frames_hwctx->surface_type == DXVA2_VideoProcessorRenderTarget)
+            hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET;
+        else
+            hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET;
+    }
+#endif
+
+    s->child_frames_ref       = child_frames_ref;
+    child_frames_ref          = NULL;
+
+fail:
+    av_buffer_unref(&child_device_ref);
+    av_buffer_unref(&child_frames_ref);
+    return ret;
+}
+
+static int qsv_init_surface(AVHWFramesContext *ctx, mfxFrameSurface1 *surf)
+{
+    const AVPixFmtDescriptor *desc;
+    uint32_t fourcc;
+
+    desc = av_pix_fmt_desc_get(ctx->sw_format);
+    if (!desc)
+        return AVERROR(EINVAL);
+
+    fourcc = qsv_fourcc_from_pix_fmt(ctx->sw_format);
+    if (!fourcc)
+        return AVERROR(EINVAL);
+
+    surf->Info.BitDepthLuma   = desc->comp[0].depth;
+    surf->Info.BitDepthChroma = desc->comp[0].depth;
+    surf->Info.Shift          = desc->comp[0].depth > 8;
+
+    if (desc->log2_chroma_w && desc->log2_chroma_h)
+        surf->Info.ChromaFormat   = MFX_CHROMAFORMAT_YUV420;
+    else if (desc->log2_chroma_w)
+        surf->Info.ChromaFormat   = MFX_CHROMAFORMAT_YUV422;
+    else
+        surf->Info.ChromaFormat   = MFX_CHROMAFORMAT_YUV444;
+
+    surf->Info.FourCC         = fourcc;
+    surf->Info.Width          = FFALIGN(ctx->width, 16);
+    surf->Info.CropW          = ctx->width;
+    surf->Info.Height         = FFALIGN(ctx->height, 16);
+    surf->Info.CropH          = ctx->height;
+    surf->Info.FrameRateExtN  = 25;
+    surf->Info.FrameRateExtD  = 1;
+    surf->Info.PicStruct      = MFX_PICSTRUCT_PROGRESSIVE;
+
+    return 0;
+}
+
+static int qsv_init_pool(AVHWFramesContext *ctx, uint32_t fourcc)
+{
+    QSVFramesContext              *s = ctx->internal->priv;
+    AVQSVFramesContext *frames_hwctx = ctx->hwctx;
+
+    int i, ret = 0;
+
+    if (ctx->initial_pool_size <= 0) {
+        av_log(ctx, AV_LOG_ERROR, "QSV requires a fixed frame pool size\n");
+        return AVERROR(EINVAL);
+    }
+
+    s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
+                                            sizeof(*s->surfaces_internal));
+    if (!s->surfaces_internal)
+        return AVERROR(ENOMEM);
+
+    for (i = 0; i < ctx->initial_pool_size; i++) {
+        ret = qsv_init_surface(ctx, &s->surfaces_internal[i]);
+        if (ret < 0)
+            return ret;
+    }
+
+    if (!(frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME)) {
+        ret = qsv_init_child_ctx(ctx);
+        if (ret < 0)
+            return ret;
+    }
+
+    ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(mfxFrameSurface1),
+                                                        ctx, qsv_pool_alloc, NULL);
+    if (!ctx->internal->pool_internal)
+        return AVERROR(ENOMEM);
+
+    frames_hwctx->surfaces    = s->surfaces_internal;
+    frames_hwctx->nb_surfaces = ctx->initial_pool_size;
+
+    return 0;
+}
+
+static mfxStatus frame_alloc(mfxHDL pthis, mfxFrameAllocRequest *req,
+                             mfxFrameAllocResponse *resp)
+{
+    AVHWFramesContext    *ctx = pthis;
+    QSVFramesContext       *s = ctx->internal->priv;
+    AVQSVFramesContext *hwctx = ctx->hwctx;
+    mfxFrameInfo *i  = &req->Info;
+    mfxFrameInfo *i1 = &hwctx->surfaces[0].Info;
+
+    if (!(req->Type & MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET) ||
+        !(req->Type & (MFX_MEMTYPE_FROM_VPPIN | MFX_MEMTYPE_FROM_VPPOUT)) ||
+        !(req->Type & MFX_MEMTYPE_EXTERNAL_FRAME))
+        return MFX_ERR_UNSUPPORTED;
+    if (i->Width  > i1->Width || i->Height > i1->Height ||
+        i->FourCC != i1->FourCC || i->ChromaFormat != i1->ChromaFormat) {
+        av_log(ctx, AV_LOG_ERROR, "Mismatching surface properties in an "
+               "allocation request: %dx%d %d %d vs %dx%d %d %d\n",
+               i->Width,  i->Height,  i->FourCC,  i->ChromaFormat,
+               i1->Width, i1->Height, i1->FourCC, i1->ChromaFormat);
+        return MFX_ERR_UNSUPPORTED;
+    }
+
+    resp->mids           = s->mem_ids;
+    resp->NumFrameActual = hwctx->nb_surfaces;
+
+    return MFX_ERR_NONE;
+}
+
+static mfxStatus frame_free(mfxHDL pthis, mfxFrameAllocResponse *resp)
+{
+    return MFX_ERR_NONE;
+}
+
+static mfxStatus frame_lock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
+{
+    return MFX_ERR_UNSUPPORTED;
+}
+
+static mfxStatus frame_unlock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
+{
+    return MFX_ERR_UNSUPPORTED;
+}
+
+static mfxStatus frame_get_hdl(mfxHDL pthis, mfxMemId mid, mfxHDL *hdl)
+{
+    *hdl = mid;
+    return MFX_ERR_NONE;
+}
+
+static int qsv_init_internal_session(AVHWFramesContext *ctx,
+                                     mfxSession *session, int upload)
+{
+    QSVFramesContext              *s = ctx->internal->priv;
+    AVQSVFramesContext *frames_hwctx = ctx->hwctx;
+    QSVDeviceContext   *device_priv  = ctx->device_ctx->internal->priv;
+    int opaque = !!(frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME);
+
+    mfxFrameAllocator frame_allocator = {
+        .pthis  = ctx,
+        .Alloc  = frame_alloc,
+        .Lock   = frame_lock,
+        .Unlock = frame_unlock,
+        .GetHDL = frame_get_hdl,
+        .Free   = frame_free,
+    };
+
+    mfxVideoParam par;
+    mfxStatus err;
+
+    err = MFXInit(device_priv->impl, &device_priv->ver, session);
+    if (err != MFX_ERR_NONE) {
+        av_log(ctx, AV_LOG_ERROR, "Error initializing an internal session\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    if (device_priv->handle) {
+        err = MFXVideoCORE_SetHandle(*session, device_priv->handle_type,
+                                     device_priv->handle);
+        if (err != MFX_ERR_NONE)
+            return AVERROR_UNKNOWN;
+    }
+
+    if (!opaque) {
+        err = MFXVideoCORE_SetFrameAllocator(*session, &frame_allocator);
+        if (err != MFX_ERR_NONE)
+            return AVERROR_UNKNOWN;
+    }
+
+    memset(&par, 0, sizeof(par));
+
+    if (opaque) {
+        par.ExtParam    = s->ext_buffers;
+        par.NumExtParam = FF_ARRAY_ELEMS(s->ext_buffers);
+        par.IOPattern   = upload ? MFX_IOPATTERN_OUT_OPAQUE_MEMORY :
+                                   MFX_IOPATTERN_IN_OPAQUE_MEMORY;
+    } else {
+        par.IOPattern = upload ? MFX_IOPATTERN_OUT_VIDEO_MEMORY :
+                                 MFX_IOPATTERN_IN_VIDEO_MEMORY;
+    }
+
+    par.IOPattern |= upload ? MFX_IOPATTERN_IN_SYSTEM_MEMORY :
+                              MFX_IOPATTERN_OUT_SYSTEM_MEMORY;
+    par.AsyncDepth = 1;
+
+    par.vpp.In = frames_hwctx->surfaces[0].Info;
+
+    /* Apparently VPP requires the frame rate to be set to some value, otherwise
+     * init will fail (probably for the framerate conversion filter). Since we
+     * are only doing data upload/download here, we just invent an arbitrary
+     * value */
+    par.vpp.In.FrameRateExtN = 25;
+    par.vpp.In.FrameRateExtD = 1;
+    par.vpp.Out = par.vpp.In;
+
+    err = MFXVideoVPP_Init(*session, &par);
+    if (err != MFX_ERR_NONE) {
+        av_log(ctx, AV_LOG_VERBOSE, "Error opening the internal VPP session."
+               "Surface upload/download will not be possible\n");
+        MFXClose(*session);
+        *session = NULL;
+    }
+
+    return 0;
+}
+
+static int qsv_frames_init(AVHWFramesContext *ctx)
+{
+    QSVFramesContext              *s = ctx->internal->priv;
+    AVQSVFramesContext *frames_hwctx = ctx->hwctx;
+
+    int opaque = !!(frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME);
+
+    uint32_t fourcc;
+    int i, ret;
+
+    fourcc = qsv_fourcc_from_pix_fmt(ctx->sw_format);
+    if (!fourcc) {
+        av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format\n");
+        return AVERROR(ENOSYS);
+    }
+
+    if (!ctx->pool) {
+        ret = qsv_init_pool(ctx, fourcc);
+        if (ret < 0) {
+            av_log(ctx, AV_LOG_ERROR, "Error creating an internal frame pool\n");
+            return ret;
+        }
+    }
+
+    if (opaque) {
+        s->surface_ptrs = av_mallocz_array(frames_hwctx->nb_surfaces,
+                                           sizeof(*s->surface_ptrs));
+        if (!s->surface_ptrs)
+            return AVERROR(ENOMEM);
+
+        for (i = 0; i < frames_hwctx->nb_surfaces; i++)
+            s->surface_ptrs[i] = frames_hwctx->surfaces + i;
+
+        s->opaque_alloc.In.Surfaces   = s->surface_ptrs;
+        s->opaque_alloc.In.NumSurface = frames_hwctx->nb_surfaces;
+        s->opaque_alloc.In.Type       = frames_hwctx->frame_type;
+
+        s->opaque_alloc.Out = s->opaque_alloc.In;
+
+        s->opaque_alloc.Header.BufferId = MFX_EXTBUFF_OPAQUE_SURFACE_ALLOCATION;
+        s->opaque_alloc.Header.BufferSz = sizeof(s->opaque_alloc);
+
+        s->ext_buffers[0] = (mfxExtBuffer*)&s->opaque_alloc;
+    } else {
+        s->mem_ids = av_mallocz_array(frames_hwctx->nb_surfaces, sizeof(*s->mem_ids));
+        if (!s->mem_ids)
+            return AVERROR(ENOMEM);
+
+        for (i = 0; i < frames_hwctx->nb_surfaces; i++)
+            s->mem_ids[i] = frames_hwctx->surfaces[i].Data.MemId;
+    }
+
+    s->session_download = NULL;
+    s->session_upload   = NULL;
+
+    s->session_download_init = 0;
+    s->session_upload_init   = 0;
+
+#if HAVE_PTHREADS
+    pthread_mutex_init(&s->session_lock, NULL);
+    pthread_cond_init(&s->session_cond, NULL);
+#endif
+
+    return 0;
+}
+
+static int qsv_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
+{
+    frame->buf[0] = av_buffer_pool_get(ctx->pool);
+    if (!frame->buf[0])
+        return AVERROR(ENOMEM);
+
+    frame->data[3] = frame->buf[0]->data;
+    frame->format  = AV_PIX_FMT_QSV;
+    frame->width   = ctx->width;
+    frame->height  = ctx->height;
+
+    return 0;
+}
+
+static int qsv_transfer_get_formats(AVHWFramesContext *ctx,
+                                    enum AVHWFrameTransferDirection dir,
+                                    enum AVPixelFormat **formats)
+{
+    enum AVPixelFormat *fmts;
+
+    fmts = av_malloc_array(2, sizeof(*fmts));
+    if (!fmts)
+        return AVERROR(ENOMEM);
+
+    fmts[0] = ctx->sw_format;
+    fmts[1] = AV_PIX_FMT_NONE;
+
+    *formats = fmts;
+
+    return 0;
+}
+
+static int qsv_frames_derive_from(AVHWFramesContext *dst_ctx,
+                                  AVHWFramesContext *src_ctx, int flags)
+{
+    AVQSVFramesContext *src_hwctx = src_ctx->hwctx;
+    int i;
+
+    switch (dst_ctx->device_ctx->type) {
+#if CONFIG_VAAPI
+    case AV_HWDEVICE_TYPE_VAAPI:
+        {
+            AVVAAPIFramesContext *dst_hwctx = dst_ctx->hwctx;
+            dst_hwctx->surface_ids = av_mallocz_array(src_hwctx->nb_surfaces,
+                                                      sizeof(*dst_hwctx->surface_ids));
+            if (!dst_hwctx->surface_ids)
+                return AVERROR(ENOMEM);
+            for (i = 0; i < src_hwctx->nb_surfaces; i++)
+                dst_hwctx->surface_ids[i] =
+                    *(VASurfaceID*)src_hwctx->surfaces[i].Data.MemId;
+            dst_hwctx->nb_surfaces = src_hwctx->nb_surfaces;
+        }
+        break;
+#endif
+#if CONFIG_DXVA2
+    case AV_HWDEVICE_TYPE_DXVA2:
+        {
+            AVDXVA2FramesContext *dst_hwctx = dst_ctx->hwctx;
+            dst_hwctx->surfaces = av_mallocz_array(src_hwctx->nb_surfaces,
+                                                   sizeof(*dst_hwctx->surfaces));
+            if (!dst_hwctx->surfaces)
+                return AVERROR(ENOMEM);
+            for (i = 0; i < src_hwctx->nb_surfaces; i++)
+                dst_hwctx->surfaces[i] =
+                    (IDirect3DSurface9*)src_hwctx->surfaces[i].Data.MemId;
+            dst_hwctx->nb_surfaces = src_hwctx->nb_surfaces;
+            if (src_hwctx->frame_type == MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET)
+                dst_hwctx->surface_type = DXVA2_VideoDecoderRenderTarget;
+            else
+                dst_hwctx->surface_type = DXVA2_VideoProcessorRenderTarget;
+        }
+        break;
+#endif
+    default:
+        return AVERROR(ENOSYS);
+    }
+
+    return 0;
+}
+
+static int qsv_map_from(AVHWFramesContext *ctx,
+                        AVFrame *dst, const AVFrame *src, int flags)
+{
+    QSVFramesContext *s = ctx->internal->priv;
+    mfxFrameSurface1 *surf = (mfxFrameSurface1*)src->data[3];
+    AVHWFramesContext *child_frames_ctx;
+    const AVPixFmtDescriptor *desc;
+    uint8_t *child_data;
+    AVFrame *dummy;
+    int ret = 0;
+
+    if (!s->child_frames_ref)
+        return AVERROR(ENOSYS);
+    child_frames_ctx = (AVHWFramesContext*)s->child_frames_ref->data;
+
+    switch (child_frames_ctx->device_ctx->type) {
+#if CONFIG_VAAPI
+    case AV_HWDEVICE_TYPE_VAAPI:
+        child_data = (uint8_t*)(intptr_t)*(VASurfaceID*)surf->Data.MemId;
+        break;
+#endif
+#if CONFIG_DXVA2
+    case AV_HWDEVICE_TYPE_DXVA2:
+        child_data = surf->Data.MemId;
+        break;
+#endif
+    default:
+        return AVERROR(ENOSYS);
+    }
+
+    if (dst->format == child_frames_ctx->format) {
+        ret = ff_hwframe_map_create(s->child_frames_ref,
+                                    dst, src, NULL, NULL);
+        if (ret < 0)
+            return ret;
+
+        dst->width   = src->width;
+        dst->height  = src->height;
+        dst->data[3] = child_data;
+
+        return 0;
+    }
+
+    desc = av_pix_fmt_desc_get(dst->format);
+    if (desc && desc->flags & AV_PIX_FMT_FLAG_HWACCEL) {
+        // This only supports mapping to software.
+        return AVERROR(ENOSYS);
+    }
+
+    dummy = av_frame_alloc();
+    if (!dummy)
+        return AVERROR(ENOMEM);
+
+    dummy->buf[0]        = av_buffer_ref(src->buf[0]);
+    dummy->hw_frames_ctx = av_buffer_ref(s->child_frames_ref);
+    if (!dummy->buf[0] || !dummy->hw_frames_ctx)
+        goto fail;
+
+    dummy->format        = child_frames_ctx->format;
+    dummy->width         = src->width;
+    dummy->height        = src->height;
+    dummy->data[3]       = child_data;
+
+    ret = av_hwframe_map(dst, dummy, flags);
+
+fail:
+    av_frame_free(&dummy);
+
+    return ret;
+}
+
+static int qsv_transfer_data_child(AVHWFramesContext *ctx, AVFrame *dst,
+                                   const AVFrame *src)
+{
+    QSVFramesContext *s = ctx->internal->priv;
+    AVHWFramesContext *child_frames_ctx = (AVHWFramesContext*)s->child_frames_ref->data;
+    int download = !!src->hw_frames_ctx;
+    mfxFrameSurface1 *surf = (mfxFrameSurface1*)(download ? src->data[3] : dst->data[3]);
+
+    AVFrame *dummy;
+    int ret;
+
+    dummy = av_frame_alloc();
+    if (!dummy)
+        return AVERROR(ENOMEM);
+
+    dummy->format        = child_frames_ctx->format;
+    dummy->width         = src->width;
+    dummy->height        = src->height;
+    dummy->buf[0]        = download ? src->buf[0] : dst->buf[0];
+    dummy->data[3]       = surf->Data.MemId;
+    dummy->hw_frames_ctx = s->child_frames_ref;
+
+    ret = download ? av_hwframe_transfer_data(dst, dummy, 0) :
+                     av_hwframe_transfer_data(dummy, src, 0);
+
+    dummy->buf[0]        = NULL;
+    dummy->data[3]       = NULL;
+    dummy->hw_frames_ctx = NULL;
+
+    av_frame_free(&dummy);
+
+    return ret;
+}
+
+static int map_frame_to_surface(const AVFrame *frame, mfxFrameSurface1 *surface)
+{
+    switch (frame->format) {
+    case AV_PIX_FMT_NV12:
+    case AV_PIX_FMT_P010:
+        surface->Data.Y  = frame->data[0];
+        surface->Data.UV = frame->data[1];
+        break;
+
+    case AV_PIX_FMT_YUV420P:
+        surface->Data.Y = frame->data[0];
+        surface->Data.U = frame->data[1];
+        surface->Data.V = frame->data[2];
+        break;
+
+    case AV_PIX_FMT_BGRA:
+        surface->Data.B = frame->data[0];
+        surface->Data.G = frame->data[0] + 1;
+        surface->Data.R = frame->data[0] + 2;
+        surface->Data.A = frame->data[0] + 3;
+        break;
+
+    default:
+        return MFX_ERR_UNSUPPORTED;
+    }
+    surface->Data.Pitch     = frame->linesize[0];
+    surface->Data.TimeStamp = frame->pts;
+
+    return 0;
+}
+
+static int qsv_transfer_data_from(AVHWFramesContext *ctx, AVFrame *dst,
+                                  const AVFrame *src)
+{
+    QSVFramesContext  *s = ctx->internal->priv;
+    mfxFrameSurface1 out = {{ 0 }};
+    mfxFrameSurface1 *in = (mfxFrameSurface1*)src->data[3];
+
+    mfxSyncPoint sync = NULL;
+    mfxStatus err;
+    int ret = 0;
+
+    while (!s->session_download_init && !s->session_download && !ret) {
+#if HAVE_PTHREADS
+        if (pthread_mutex_trylock(&s->session_lock) == 0) {
+#endif
+            if (!s->session_download_init) {
+                ret = qsv_init_internal_session(ctx, &s->session_download, 0);
+                if (s->session_download)
+                    s->session_download_init = 1;
+            }
+#if HAVE_PTHREADS
+            pthread_mutex_unlock(&s->session_lock);
+            pthread_cond_signal(&s->session_cond);
+        } else {
+            pthread_mutex_lock(&s->session_lock);
+            while (!s->session_download_init && !s->session_download) {
+                pthread_cond_wait(&s->session_cond, &s->session_lock);
+            }
+            pthread_mutex_unlock(&s->session_lock);
+        }
+#endif
+    }
+
+    if (ret < 0)
+        return ret;
+
+    if (!s->session_download) {
+        if (s->child_frames_ref)
+            return qsv_transfer_data_child(ctx, dst, src);
+
+        av_log(ctx, AV_LOG_ERROR, "Surface download not possible\n");
+        return AVERROR(ENOSYS);
+    }
+
+    out.Info = in->Info;
+    map_frame_to_surface(dst, &out);
+
+    do {
+        err = MFXVideoVPP_RunFrameVPPAsync(s->session_download, in, &out, NULL, &sync);
+        if (err == MFX_WRN_DEVICE_BUSY)
+            av_usleep(1);
+    } while (err == MFX_WRN_DEVICE_BUSY);
+
+    if (err < 0 || !sync) {
+        av_log(ctx, AV_LOG_ERROR, "Error downloading the surface\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    do {
+        err = MFXVideoCORE_SyncOperation(s->session_download, sync, 1000);
+    } while (err == MFX_WRN_IN_EXECUTION);
+    if (err < 0) {
+        av_log(ctx, AV_LOG_ERROR, "Error synchronizing the operation: %d\n", err);
+        return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+
+static int qsv_transfer_data_to(AVHWFramesContext *ctx, AVFrame *dst,
+                                const AVFrame *src)
+{
+    QSVFramesContext   *s = ctx->internal->priv;
+    mfxFrameSurface1   in = {{ 0 }};
+    mfxFrameSurface1 *out = (mfxFrameSurface1*)dst->data[3];
+
+    mfxSyncPoint sync = NULL;
+    mfxStatus err;
+    int ret = 0;
+    /* make a copy if the input is not padded as libmfx requires */
+    AVFrame tmp_frame;
+    const AVFrame *src_frame;
+    int realigned = 0;
+
+
+    while (!s->session_upload_init && !s->session_upload && !ret) {
+#if HAVE_PTHREADS
+        if (pthread_mutex_trylock(&s->session_lock) == 0) {
+#endif
+            if (!s->session_upload_init) {
+                ret = qsv_init_internal_session(ctx, &s->session_upload, 1);
+                if (s->session_upload)
+                    s->session_upload_init = 1;
+            }
+#if HAVE_PTHREADS
+            pthread_mutex_unlock(&s->session_lock);
+            pthread_cond_signal(&s->session_cond);
+        } else {
+            pthread_mutex_lock(&s->session_lock);
+            while (!s->session_upload_init && !s->session_upload) {
+                pthread_cond_wait(&s->session_cond, &s->session_lock);
+            }
+            pthread_mutex_unlock(&s->session_lock);
+        }
+#endif
+    }
+    if (ret < 0)
+        return ret;
+
+    if (src->height & 15 || src->linesize[0] & 15) {
+        realigned = 1;
+        memset(&tmp_frame, 0, sizeof(tmp_frame));
+        tmp_frame.format         = src->format;
+        tmp_frame.width          = FFALIGN(src->width, 16);
+        tmp_frame.height         = FFALIGN(src->height, 16);
+        ret = av_frame_get_buffer(&tmp_frame, 32);
+        if (ret < 0)
+            return ret;
+
+        ret = av_frame_copy(&tmp_frame, src);
+        if (ret < 0) {
+            av_frame_unref(&tmp_frame);
+            return ret;
+        }
+    }
+
+    src_frame = realigned ? &tmp_frame : src;
+
+    if (!s->session_upload) {
+        if (s->child_frames_ref)
+            return qsv_transfer_data_child(ctx, dst, src_frame);
+
+        av_log(ctx, AV_LOG_ERROR, "Surface upload not possible\n");
+        return AVERROR(ENOSYS);
+    }
+
+    in.Info = out->Info;
+    map_frame_to_surface(src_frame, &in);
+
+    do {
+        err = MFXVideoVPP_RunFrameVPPAsync(s->session_upload, &in, out, NULL, &sync);
+        if (err == MFX_WRN_DEVICE_BUSY)
+            av_usleep(1);
+    } while (err == MFX_WRN_DEVICE_BUSY);
+
+    if (err < 0 || !sync) {
+        av_log(ctx, AV_LOG_ERROR, "Error uploading the surface\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    do {
+        err = MFXVideoCORE_SyncOperation(s->session_upload, sync, 1000);
+    } while (err == MFX_WRN_IN_EXECUTION);
+    if (err < 0) {
+        av_log(ctx, AV_LOG_ERROR, "Error synchronizing the operation\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    if (realigned)
+        av_frame_unref(&tmp_frame);
+
+    return 0;
+}
+
+static int qsv_frames_derive_to(AVHWFramesContext *dst_ctx,
+                                AVHWFramesContext *src_ctx, int flags)
+{
+    QSVFramesContext *s = dst_ctx->internal->priv;
+    AVQSVFramesContext *dst_hwctx = dst_ctx->hwctx;
+    int i;
+
+    switch (src_ctx->device_ctx->type) {
+#if CONFIG_VAAPI
+    case AV_HWDEVICE_TYPE_VAAPI:
+        {
+            AVVAAPIFramesContext *src_hwctx = src_ctx->hwctx;
+            s->surfaces_internal = av_mallocz_array(src_hwctx->nb_surfaces,
+                                                    sizeof(*s->surfaces_internal));
+            if (!s->surfaces_internal)
+                return AVERROR(ENOMEM);
+            for (i = 0; i < src_hwctx->nb_surfaces; i++) {
+                qsv_init_surface(dst_ctx, &s->surfaces_internal[i]);
+                s->surfaces_internal[i].Data.MemId = src_hwctx->surface_ids + i;
+            }
+            dst_hwctx->nb_surfaces = src_hwctx->nb_surfaces;
+            dst_hwctx->frame_type  = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET;
+        }
+        break;
+#endif
+#if CONFIG_DXVA2
+    case AV_HWDEVICE_TYPE_DXVA2:
+        {
+            AVDXVA2FramesContext *src_hwctx = src_ctx->hwctx;
+            s->surfaces_internal = av_mallocz_array(src_hwctx->nb_surfaces,
+                                                    sizeof(*s->surfaces_internal));
+            if (!s->surfaces_internal)
+                return AVERROR(ENOMEM);
+            for (i = 0; i < src_hwctx->nb_surfaces; i++) {
+                qsv_init_surface(dst_ctx, &s->surfaces_internal[i]);
+                s->surfaces_internal[i].Data.MemId = (mfxMemId)src_hwctx->surfaces[i];
+            }
+            dst_hwctx->nb_surfaces = src_hwctx->nb_surfaces;
+            if (src_hwctx->surface_type == DXVA2_VideoProcessorRenderTarget)
+                dst_hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET;
+            else
+                dst_hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET;
+        }
+        break;
+#endif
+    default:
+        return AVERROR(ENOSYS);
+    }
+
+    dst_hwctx->surfaces = s->surfaces_internal;
+
+    return 0;
+}
+
+static int qsv_map_to(AVHWFramesContext *dst_ctx,
+                      AVFrame *dst, const AVFrame *src, int flags)
+{
+    AVQSVFramesContext *hwctx = dst_ctx->hwctx;
+    int i, err;
+
+    for (i = 0; i < hwctx->nb_surfaces; i++) {
+#if CONFIG_VAAPI
+        if (*(VASurfaceID*)hwctx->surfaces[i].Data.MemId ==
+            (VASurfaceID)(uintptr_t)src->data[3])
+            break;
+#endif
+#if CONFIG_DXVA2
+        if ((IDirect3DSurface9*)hwctx->surfaces[i].Data.MemId ==
+            (IDirect3DSurface9*)(uintptr_t)src->data[3])
+            break;
+#endif
+    }
+    if (i >= hwctx->nb_surfaces) {
+        av_log(dst_ctx, AV_LOG_ERROR, "Trying to map from a surface which "
+               "is not in the mapped frames context.\n");
+        return AVERROR(EINVAL);
+    }
+
+    err = ff_hwframe_map_create(dst->hw_frames_ctx,
+                                dst, src, NULL, NULL);
+    if (err)
+        return err;
+
+    dst->width   = src->width;
+    dst->height  = src->height;
+    dst->data[3] = (uint8_t*)&hwctx->surfaces[i];
+
+    return 0;
+}
+
+static int qsv_frames_get_constraints(AVHWDeviceContext *ctx,
+                                      const void *hwconfig,
+                                      AVHWFramesConstraints *constraints)
+{
+    int i;
+
+    constraints->valid_sw_formats = av_malloc_array(FF_ARRAY_ELEMS(supported_pixel_formats) + 1,
+                                                    sizeof(*constraints->valid_sw_formats));
+    if (!constraints->valid_sw_formats)
+        return AVERROR(ENOMEM);
+
+    for (i = 0; i < FF_ARRAY_ELEMS(supported_pixel_formats); i++)
+        constraints->valid_sw_formats[i] = supported_pixel_formats[i].pix_fmt;
+    constraints->valid_sw_formats[FF_ARRAY_ELEMS(supported_pixel_formats)] = AV_PIX_FMT_NONE;
+
+    constraints->valid_hw_formats = av_malloc_array(2, sizeof(*constraints->valid_hw_formats));
+    if (!constraints->valid_hw_formats)
+        return AVERROR(ENOMEM);
+
+    constraints->valid_hw_formats[0] = AV_PIX_FMT_QSV;
+    constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE;
+
+    return 0;
+}
+
+static void qsv_device_free(AVHWDeviceContext *ctx)
+{
+    AVQSVDeviceContext *hwctx = ctx->hwctx;
+    QSVDevicePriv       *priv = ctx->user_opaque;
+
+    if (hwctx->session)
+        MFXClose(hwctx->session);
+
+    av_buffer_unref(&priv->child_device_ctx);
+    av_freep(&priv);
+}
+
+static mfxIMPL choose_implementation(const char *device)
+{
+    static const struct {
+        const char *name;
+        mfxIMPL     impl;
+    } impl_map[] = {
+        { "auto",     MFX_IMPL_AUTO         },
+        { "sw",       MFX_IMPL_SOFTWARE     },
+        { "hw",       MFX_IMPL_HARDWARE     },
+        { "auto_any", MFX_IMPL_AUTO_ANY     },
+        { "hw_any",   MFX_IMPL_HARDWARE_ANY },
+        { "hw2",      MFX_IMPL_HARDWARE2    },
+        { "hw3",      MFX_IMPL_HARDWARE3    },
+        { "hw4",      MFX_IMPL_HARDWARE4    },
+    };
+
+    mfxIMPL impl = MFX_IMPL_AUTO_ANY;
+    int i;
+
+    if (device) {
+        for (i = 0; i < FF_ARRAY_ELEMS(impl_map); i++)
+            if (!strcmp(device, impl_map[i].name)) {
+                impl = impl_map[i].impl;
+                break;
+            }
+        if (i == FF_ARRAY_ELEMS(impl_map))
+            impl = strtol(device, NULL, 0);
+    }
+
+    return impl;
+}
+
+static int qsv_device_derive_from_child(AVHWDeviceContext *ctx,
+                                        mfxIMPL implementation,
+                                        AVHWDeviceContext *child_device_ctx,
+                                        int flags)
+{
+    AVQSVDeviceContext *hwctx = ctx->hwctx;
+
+    mfxVersion    ver = { { 3, 1 } };
+    mfxHDL        handle;
+    mfxHandleType handle_type;
+    mfxStatus     err;
+    int ret;
+
+    switch (child_device_ctx->type) {
+#if CONFIG_VAAPI
+    case AV_HWDEVICE_TYPE_VAAPI:
+        {
+            AVVAAPIDeviceContext *child_device_hwctx = child_device_ctx->hwctx;
+            handle_type = MFX_HANDLE_VA_DISPLAY;
+            handle = (mfxHDL)child_device_hwctx->display;
+        }
+        break;
+#endif
+#if CONFIG_DXVA2
+    case AV_HWDEVICE_TYPE_DXVA2:
+        {
+            AVDXVA2DeviceContext *child_device_hwctx = child_device_ctx->hwctx;
+            handle_type = MFX_HANDLE_D3D9_DEVICE_MANAGER;
+            handle = (mfxHDL)child_device_hwctx->devmgr;
+        }
+        break;
+#endif
+    default:
+        ret = AVERROR(ENOSYS);
+        goto fail;
+    }
+
+    err = MFXInit(implementation, &ver, &hwctx->session);
+    if (err != MFX_ERR_NONE) {
+        av_log(ctx, AV_LOG_ERROR, "Error initializing an MFX session: "
+               "%d.\n", err);
+        ret = AVERROR_UNKNOWN;
+        goto fail;
+    }
+
+    err = MFXQueryVersion(hwctx->session, &ver);
+    if (err != MFX_ERR_NONE) {
+        av_log(ctx, AV_LOG_ERROR, "Error querying an MFX session: %d.\n", err);
+        ret = AVERROR_UNKNOWN;
+        goto fail;
+    }
+
+    av_log(ctx, AV_LOG_VERBOSE,
+           "Initialize MFX session: API version is %d.%d, implementation version is %d.%d\n",
+           MFX_VERSION_MAJOR, MFX_VERSION_MINOR, ver.Major, ver.Minor);
+
+    MFXClose(hwctx->session);
+
+    err = MFXInit(implementation, &ver, &hwctx->session);
+    if (err != MFX_ERR_NONE) {
+        av_log(ctx, AV_LOG_ERROR,
+               "Error initializing an MFX session: %d.\n", err);
+        ret = AVERROR_UNKNOWN;
+        goto fail;
+    }
+
+    err = MFXVideoCORE_SetHandle(hwctx->session, handle_type, handle);
+    if (err != MFX_ERR_NONE) {
+        av_log(ctx, AV_LOG_ERROR, "Error setting child device handle: "
+               "%d\n", err);
+        ret = AVERROR_UNKNOWN;
+        goto fail;
+    }
+
+    ret = MFXQueryVersion(hwctx->session,&ver);
+    if (ret == MFX_ERR_NONE) {
+        av_log(ctx, AV_LOG_VERBOSE, "MFX compile/runtime API: %d.%d/%d.%d\n",
+               MFX_VERSION_MAJOR, MFX_VERSION_MINOR, ver.Major, ver.Minor);
+    }
+    return 0;
+
+fail:
+    if (hwctx->session)
+        MFXClose(hwctx->session);
+    return ret;
+}
+
+static int qsv_device_derive(AVHWDeviceContext *ctx,
+                             AVHWDeviceContext *child_device_ctx, int flags)
+{
+    return qsv_device_derive_from_child(ctx, MFX_IMPL_HARDWARE_ANY,
+                                        child_device_ctx, flags);
+}
+
+static int qsv_device_create(AVHWDeviceContext *ctx, const char *device,
+                             AVDictionary *opts, int flags)
+{
+    QSVDevicePriv *priv;
+    enum AVHWDeviceType child_device_type;
+    AVHWDeviceContext *child_device;
+    AVDictionary *child_device_opts;
+    AVDictionaryEntry *e;
+
+    mfxIMPL impl;
+    int ret;
+
+    priv = av_mallocz(sizeof(*priv));
+    if (!priv)
+        return AVERROR(ENOMEM);
+
+    ctx->user_opaque = priv;
+    ctx->free        = qsv_device_free;
+
+    e = av_dict_get(opts, "child_device", NULL, 0);
+
+    child_device_opts = NULL;
+    if (CONFIG_VAAPI) {
+        child_device_type = AV_HWDEVICE_TYPE_VAAPI;
+        // libmfx does not actually implement VAAPI properly, rather it
+        // depends on the specific behaviour of a matching iHD driver when
+        // used on recent Intel hardware.  Set options to the VAAPI device
+        // creation so that we should pick a usable setup by default if
+        // possible, even when multiple devices and drivers are available.
+        av_dict_set(&child_device_opts, "kernel_driver", "i915", 0);
+        av_dict_set(&child_device_opts, "driver",        "iHD",  0);
+    } else if (CONFIG_DXVA2)
+        child_device_type = AV_HWDEVICE_TYPE_DXVA2;
+    else {
+        av_log(ctx, AV_LOG_ERROR, "No supported child device type is enabled\n");
+        return AVERROR(ENOSYS);
+    }
+
+    ret = av_hwdevice_ctx_create(&priv->child_device_ctx, child_device_type,
+                                 e ? e->value : NULL, child_device_opts, 0);
+    if (ret < 0)
+        return ret;
+
+    child_device = (AVHWDeviceContext*)priv->child_device_ctx->data;
+
+    impl = choose_implementation(device);
+
+    return qsv_device_derive_from_child(ctx, impl, child_device, 0);
+}
+
+const HWContextType ff_hwcontext_type_qsv = {
+    .type                   = AV_HWDEVICE_TYPE_QSV,
+    .name                   = "QSV",
+
+    .device_hwctx_size      = sizeof(AVQSVDeviceContext),
+    .device_priv_size       = sizeof(QSVDeviceContext),
+    .frames_hwctx_size      = sizeof(AVQSVFramesContext),
+    .frames_priv_size       = sizeof(QSVFramesContext),
+
+    .device_create          = qsv_device_create,
+    .device_derive          = qsv_device_derive,
+    .device_init            = qsv_device_init,
+    .frames_get_constraints = qsv_frames_get_constraints,
+    .frames_init            = qsv_frames_init,
+    .frames_uninit          = qsv_frames_uninit,
+    .frames_get_buffer      = qsv_get_buffer,
+    .transfer_get_formats   = qsv_transfer_get_formats,
+    .transfer_data_to       = qsv_transfer_data_to,
+    .transfer_data_from     = qsv_transfer_data_from,
+    .map_to                 = qsv_map_to,
+    .map_from               = qsv_map_from,
+    .frames_derive_to       = qsv_frames_derive_to,
+    .frames_derive_from     = qsv_frames_derive_from,
+
+    .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_QSV, AV_PIX_FMT_NONE },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_qsv.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_qsv.h
new file mode 100644
index 000000000..b98d611cf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_qsv.h
@@ -0,0 +1,53 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HWCONTEXT_QSV_H
+#define AVUTIL_HWCONTEXT_QSV_H
+
+#include <mfx/mfxvideo.h>
+
+/**
+ * @file
+ * An API-specific header for AV_HWDEVICE_TYPE_QSV.
+ *
+ * This API does not support dynamic frame pools. AVHWFramesContext.pool must
+ * contain AVBufferRefs whose data pointer points to an mfxFrameSurface1 struct.
+ */
+
+/**
+ * This struct is allocated as AVHWDeviceContext.hwctx
+ */
+typedef struct AVQSVDeviceContext {
+    mfxSession session;
+} AVQSVDeviceContext;
+
+/**
+ * This struct is allocated as AVHWFramesContext.hwctx
+ */
+typedef struct AVQSVFramesContext {
+    mfxFrameSurface1 *surfaces;
+    int            nb_surfaces;
+
+    /**
+     * A combination of MFX_MEMTYPE_* describing the frame pool.
+     */
+    int frame_type;
+} AVQSVFramesContext;
+
+#endif /* AVUTIL_HWCONTEXT_QSV_H */
+
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_vaapi.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_vaapi.c
new file mode 100644
index 000000000..cf117640f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_vaapi.c
@@ -0,0 +1,1689 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#if HAVE_VAAPI_X11
+#   include <va/va_x11.h>
+#endif
+#if HAVE_VAAPI_DRM
+#   include <va/va_drm.h>
+#endif
+
+#if CONFIG_LIBDRM
+#   include <va/va_drmcommon.h>
+#   include <xf86drm.h>
+#   include <drm_fourcc.h>
+#   ifndef DRM_FORMAT_MOD_INVALID
+#       define DRM_FORMAT_MOD_INVALID ((1ULL << 56) - 1)
+#   endif
+#endif
+
+#include <fcntl.h>
+#if HAVE_UNISTD_H
+#   include <unistd.h>
+#endif
+
+
+#include "avassert.h"
+#include "buffer.h"
+#include "common.h"
+#include "hwcontext.h"
+#include "hwcontext_drm.h"
+#include "hwcontext_internal.h"
+#include "hwcontext_vaapi.h"
+#include "mem.h"
+#include "pixdesc.h"
+#include "pixfmt.h"
+
+
+typedef struct VAAPIDevicePriv {
+#if HAVE_VAAPI_X11
+    Display *x11_display;
+#endif
+
+    int drm_fd;
+} VAAPIDevicePriv;
+
+typedef struct VAAPISurfaceFormat {
+    enum AVPixelFormat pix_fmt;
+    VAImageFormat image_format;
+} VAAPISurfaceFormat;
+
+typedef struct VAAPIDeviceContext {
+    // Surface formats which can be used with this device.
+    VAAPISurfaceFormat *formats;
+    int              nb_formats;
+} VAAPIDeviceContext;
+
+typedef struct VAAPIFramesContext {
+    // Surface attributes set at create time.
+    VASurfaceAttrib *attributes;
+    int           nb_attributes;
+    // RT format of the underlying surface (Intel driver ignores this anyway).
+    unsigned int rt_format;
+    // Whether vaDeriveImage works.
+    int derive_works;
+} VAAPIFramesContext;
+
+typedef struct VAAPIMapping {
+    // Handle to the derived or copied image which is mapped.
+    VAImage image;
+    // The mapping flags actually used.
+    int flags;
+} VAAPIMapping;
+
+typedef struct VAAPIFormat {
+    unsigned int fourcc;
+    unsigned int rt_format;
+    enum AVPixelFormat pix_fmt;
+    int chroma_planes_swapped;
+} VAAPIFormatDescriptor;
+
+#define MAP(va, rt, av, swap_uv) { \
+        VA_FOURCC_ ## va, \
+        VA_RT_FORMAT_ ## rt, \
+        AV_PIX_FMT_ ## av, \
+        swap_uv, \
+    }
+// The map fourcc <-> pix_fmt isn't bijective because of the annoying U/V
+// plane swap cases.  The frame handling below tries to hide these.
+static const VAAPIFormatDescriptor vaapi_format_map[] = {
+    MAP(NV12, YUV420,  NV12,    0),
+#ifdef VA_FOURCC_I420
+    MAP(I420, YUV420,  YUV420P, 0),
+#endif
+    MAP(YV12, YUV420,  YUV420P, 1),
+    MAP(IYUV, YUV420,  YUV420P, 0),
+    MAP(422H, YUV422,  YUV422P, 0),
+#ifdef VA_FOURCC_YV16
+    MAP(YV16, YUV422,  YUV422P, 1),
+#endif
+    MAP(UYVY, YUV422,  UYVY422, 0),
+    MAP(YUY2, YUV422,  YUYV422, 0),
+    MAP(411P, YUV411,  YUV411P, 0),
+    MAP(422V, YUV422,  YUV440P, 0),
+    MAP(444P, YUV444,  YUV444P, 0),
+    MAP(Y800, YUV400,  GRAY8,   0),
+#ifdef VA_FOURCC_P010
+    MAP(P010, YUV420_10BPP, P010, 0),
+#endif
+    MAP(BGRA, RGB32,   BGRA, 0),
+    MAP(BGRX, RGB32,   BGR0, 0),
+    MAP(RGBA, RGB32,   RGBA, 0),
+    MAP(RGBX, RGB32,   RGB0, 0),
+#ifdef VA_FOURCC_ABGR
+    MAP(ABGR, RGB32,   ABGR, 0),
+    MAP(XBGR, RGB32,   0BGR, 0),
+#endif
+    MAP(ARGB, RGB32,   ARGB, 0),
+    MAP(XRGB, RGB32,   0RGB, 0),
+};
+#undef MAP
+
+static const VAAPIFormatDescriptor *
+    vaapi_format_from_fourcc(unsigned int fourcc)
+{
+    int i;
+    for (i = 0; i < FF_ARRAY_ELEMS(vaapi_format_map); i++)
+        if (vaapi_format_map[i].fourcc == fourcc)
+            return &vaapi_format_map[i];
+    return NULL;
+}
+
+static const VAAPIFormatDescriptor *
+    vaapi_format_from_pix_fmt(enum AVPixelFormat pix_fmt)
+{
+    int i;
+    for (i = 0; i < FF_ARRAY_ELEMS(vaapi_format_map); i++)
+        if (vaapi_format_map[i].pix_fmt == pix_fmt)
+            return &vaapi_format_map[i];
+    return NULL;
+}
+
+static enum AVPixelFormat vaapi_pix_fmt_from_fourcc(unsigned int fourcc)
+{
+    const VAAPIFormatDescriptor *desc;
+    desc = vaapi_format_from_fourcc(fourcc);
+    if (desc)
+        return desc->pix_fmt;
+    else
+        return AV_PIX_FMT_NONE;
+}
+
+static int vaapi_get_image_format(AVHWDeviceContext *hwdev,
+                                  enum AVPixelFormat pix_fmt,
+                                  VAImageFormat **image_format)
+{
+    VAAPIDeviceContext *ctx = hwdev->internal->priv;
+    int i;
+
+    for (i = 0; i < ctx->nb_formats; i++) {
+        if (ctx->formats[i].pix_fmt == pix_fmt) {
+            if (image_format)
+                *image_format = &ctx->formats[i].image_format;
+            return 0;
+        }
+    }
+    return AVERROR(EINVAL);
+}
+
+static int vaapi_frames_get_constraints(AVHWDeviceContext *hwdev,
+                                        const void *hwconfig,
+                                        AVHWFramesConstraints *constraints)
+{
+    AVVAAPIDeviceContext *hwctx = hwdev->hwctx;
+    const AVVAAPIHWConfig *config = hwconfig;
+    VAAPIDeviceContext *ctx = hwdev->internal->priv;
+    VASurfaceAttrib *attr_list = NULL;
+    VAStatus vas;
+    enum AVPixelFormat pix_fmt;
+    unsigned int fourcc;
+    int err, i, j, attr_count, pix_fmt_count;
+
+    if (config &&
+        !(hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES)) {
+        attr_count = 0;
+        vas = vaQuerySurfaceAttributes(hwctx->display, config->config_id,
+                                       0, &attr_count);
+        if (vas != VA_STATUS_SUCCESS) {
+            av_log(hwdev, AV_LOG_ERROR, "Failed to query surface attributes: "
+                   "%d (%s).\n", vas, vaErrorStr(vas));
+            err = AVERROR(ENOSYS);
+            goto fail;
+        }
+
+        attr_list = av_malloc(attr_count * sizeof(*attr_list));
+        if (!attr_list) {
+            err = AVERROR(ENOMEM);
+            goto fail;
+        }
+
+        vas = vaQuerySurfaceAttributes(hwctx->display, config->config_id,
+                                       attr_list, &attr_count);
+        if (vas != VA_STATUS_SUCCESS) {
+            av_log(hwdev, AV_LOG_ERROR, "Failed to query surface attributes: "
+                   "%d (%s).\n", vas, vaErrorStr(vas));
+            err = AVERROR(ENOSYS);
+            goto fail;
+        }
+
+        pix_fmt_count = 0;
+        for (i = 0; i < attr_count; i++) {
+            switch (attr_list[i].type) {
+            case VASurfaceAttribPixelFormat:
+                fourcc = attr_list[i].value.value.i;
+                pix_fmt = vaapi_pix_fmt_from_fourcc(fourcc);
+                if (pix_fmt != AV_PIX_FMT_NONE) {
+                    ++pix_fmt_count;
+                } else {
+                    // Something unsupported - ignore.
+                }
+                break;
+            case VASurfaceAttribMinWidth:
+                constraints->min_width  = attr_list[i].value.value.i;
+                break;
+            case VASurfaceAttribMinHeight:
+                constraints->min_height = attr_list[i].value.value.i;
+                break;
+            case VASurfaceAttribMaxWidth:
+                constraints->max_width  = attr_list[i].value.value.i;
+                break;
+            case VASurfaceAttribMaxHeight:
+                constraints->max_height = attr_list[i].value.value.i;
+                break;
+            }
+        }
+        if (pix_fmt_count == 0) {
+            // Nothing usable found.  Presumably there exists something which
+            // works, so leave the set null to indicate unknown.
+            constraints->valid_sw_formats = NULL;
+        } else {
+            constraints->valid_sw_formats = av_malloc_array(pix_fmt_count + 1,
+                                                            sizeof(pix_fmt));
+            if (!constraints->valid_sw_formats) {
+                err = AVERROR(ENOMEM);
+                goto fail;
+            }
+
+            for (i = j = 0; i < attr_count; i++) {
+                if (attr_list[i].type != VASurfaceAttribPixelFormat)
+                    continue;
+                fourcc = attr_list[i].value.value.i;
+                pix_fmt = vaapi_pix_fmt_from_fourcc(fourcc);
+                if (pix_fmt != AV_PIX_FMT_NONE)
+                    constraints->valid_sw_formats[j++] = pix_fmt;
+            }
+            av_assert0(j == pix_fmt_count);
+            constraints->valid_sw_formats[j] = AV_PIX_FMT_NONE;
+        }
+    } else {
+        // No configuration supplied.
+        // Return the full set of image formats known by the implementation.
+        constraints->valid_sw_formats = av_malloc_array(ctx->nb_formats + 1,
+                                                        sizeof(pix_fmt));
+        if (!constraints->valid_sw_formats) {
+            err = AVERROR(ENOMEM);
+            goto fail;
+        }
+        for (i = 0; i < ctx->nb_formats; i++)
+            constraints->valid_sw_formats[i] = ctx->formats[i].pix_fmt;
+        constraints->valid_sw_formats[i] = AV_PIX_FMT_NONE;
+    }
+
+    constraints->valid_hw_formats = av_malloc_array(2, sizeof(pix_fmt));
+    if (!constraints->valid_hw_formats) {
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+    constraints->valid_hw_formats[0] = AV_PIX_FMT_VAAPI;
+    constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE;
+
+    err = 0;
+fail:
+    av_freep(&attr_list);
+    return err;
+}
+
+static const struct {
+    const char *friendly_name;
+    const char *match_string;
+    unsigned int quirks;
+} vaapi_driver_quirks_table[] = {
+#if !VA_CHECK_VERSION(1, 0, 0)
+    // The i965 driver did not conform before version 2.0.
+    {
+        "Intel i965 (Quick Sync)",
+        "i965",
+        AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS,
+    },
+#endif
+    {
+        "Intel iHD",
+        "ubit",
+        AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE,
+    },
+    {
+        "VDPAU wrapper",
+        "Splitted-Desktop Systems VDPAU backend for VA-API",
+        AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES,
+    },
+};
+
+static int vaapi_device_init(AVHWDeviceContext *hwdev)
+{
+    VAAPIDeviceContext *ctx = hwdev->internal->priv;
+    AVVAAPIDeviceContext *hwctx = hwdev->hwctx;
+    VAImageFormat *image_list = NULL;
+    VAStatus vas;
+    const char *vendor_string;
+    int err, i, image_count;
+    enum AVPixelFormat pix_fmt;
+    unsigned int fourcc;
+
+    image_count = vaMaxNumImageFormats(hwctx->display);
+    if (image_count <= 0) {
+        err = AVERROR(EIO);
+        goto fail;
+    }
+    image_list = av_malloc(image_count * sizeof(*image_list));
+    if (!image_list) {
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+    vas = vaQueryImageFormats(hwctx->display, image_list, &image_count);
+    if (vas != VA_STATUS_SUCCESS) {
+        err = AVERROR(EIO);
+        goto fail;
+    }
+
+    ctx->formats  = av_malloc(image_count * sizeof(*ctx->formats));
+    if (!ctx->formats) {
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+    ctx->nb_formats = 0;
+    for (i = 0; i < image_count; i++) {
+        fourcc  = image_list[i].fourcc;
+        pix_fmt = vaapi_pix_fmt_from_fourcc(fourcc);
+        if (pix_fmt == AV_PIX_FMT_NONE) {
+            av_log(hwdev, AV_LOG_DEBUG, "Format %#x -> unknown.\n",
+                   fourcc);
+        } else {
+            av_log(hwdev, AV_LOG_DEBUG, "Format %#x -> %s.\n",
+                   fourcc, av_get_pix_fmt_name(pix_fmt));
+            ctx->formats[ctx->nb_formats].pix_fmt      = pix_fmt;
+            ctx->formats[ctx->nb_formats].image_format = image_list[i];
+            ++ctx->nb_formats;
+        }
+    }
+
+    vendor_string = vaQueryVendorString(hwctx->display);
+    if (vendor_string)
+        av_log(hwdev, AV_LOG_VERBOSE, "VAAPI driver: %s.\n", vendor_string);
+
+    if (hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_USER_SET) {
+        av_log(hwdev, AV_LOG_VERBOSE, "Using quirks set by user (%#x).\n",
+               hwctx->driver_quirks);
+    } else {
+        // Detect the driver in use and set quirk flags if necessary.
+        hwctx->driver_quirks = 0;
+        if (vendor_string) {
+            for (i = 0; i < FF_ARRAY_ELEMS(vaapi_driver_quirks_table); i++) {
+                if (strstr(vendor_string,
+                           vaapi_driver_quirks_table[i].match_string)) {
+                    av_log(hwdev, AV_LOG_VERBOSE, "Matched driver string "
+                           "as known nonstandard driver \"%s\", setting "
+                           "quirks (%#x).\n",
+                           vaapi_driver_quirks_table[i].friendly_name,
+                           vaapi_driver_quirks_table[i].quirks);
+                    hwctx->driver_quirks |=
+                        vaapi_driver_quirks_table[i].quirks;
+                    break;
+                }
+            }
+            if (!(i < FF_ARRAY_ELEMS(vaapi_driver_quirks_table))) {
+                av_log(hwdev, AV_LOG_VERBOSE, "Driver not found in known "
+                       "nonstandard list, using standard behaviour.\n");
+            }
+        } else {
+            av_log(hwdev, AV_LOG_VERBOSE, "Driver has no vendor string, "
+                   "assuming standard behaviour.\n");
+        }
+    }
+
+    av_free(image_list);
+    return 0;
+fail:
+    av_freep(&ctx->formats);
+    av_free(image_list);
+    return err;
+}
+
+static void vaapi_device_uninit(AVHWDeviceContext *hwdev)
+{
+    VAAPIDeviceContext *ctx = hwdev->internal->priv;
+
+    av_freep(&ctx->formats);
+}
+
+static void vaapi_buffer_free(void *opaque, uint8_t *data)
+{
+    AVHWFramesContext     *hwfc = opaque;
+    AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
+    VASurfaceID surface_id;
+    VAStatus vas;
+
+    surface_id = (VASurfaceID)(uintptr_t)data;
+
+    vas = vaDestroySurfaces(hwctx->display, &surface_id, 1);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(hwfc, AV_LOG_ERROR, "Failed to destroy surface %#x: "
+               "%d (%s).\n", surface_id, vas, vaErrorStr(vas));
+    }
+}
+
+static AVBufferRef *vaapi_pool_alloc(void *opaque, int size)
+{
+    AVHWFramesContext     *hwfc = opaque;
+    VAAPIFramesContext     *ctx = hwfc->internal->priv;
+    AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
+    AVVAAPIFramesContext  *avfc = hwfc->hwctx;
+    VASurfaceID surface_id;
+    VAStatus vas;
+    AVBufferRef *ref;
+
+    if (hwfc->initial_pool_size > 0 &&
+        avfc->nb_surfaces >= hwfc->initial_pool_size)
+        return NULL;
+
+    vas = vaCreateSurfaces(hwctx->display, ctx->rt_format,
+                           hwfc->width, hwfc->height,
+                           &surface_id, 1,
+                           ctx->attributes, ctx->nb_attributes);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(hwfc, AV_LOG_ERROR, "Failed to create surface: "
+               "%d (%s).\n", vas, vaErrorStr(vas));
+        return NULL;
+    }
+    av_log(hwfc, AV_LOG_DEBUG, "Created surface %#x.\n", surface_id);
+
+    ref = av_buffer_create((uint8_t*)(uintptr_t)surface_id,
+                           sizeof(surface_id), &vaapi_buffer_free,
+                           hwfc, AV_BUFFER_FLAG_READONLY);
+    if (!ref) {
+        vaDestroySurfaces(hwctx->display, &surface_id, 1);
+        return NULL;
+    }
+
+    if (hwfc->initial_pool_size > 0) {
+        // This is a fixed-size pool, so we must still be in the initial
+        // allocation sequence.
+        av_assert0(avfc->nb_surfaces < hwfc->initial_pool_size);
+        avfc->surface_ids[avfc->nb_surfaces] = surface_id;
+        ++avfc->nb_surfaces;
+    }
+
+    return ref;
+}
+
+static int vaapi_frames_init(AVHWFramesContext *hwfc)
+{
+    AVVAAPIFramesContext  *avfc = hwfc->hwctx;
+    VAAPIFramesContext     *ctx = hwfc->internal->priv;
+    AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
+    const VAAPIFormatDescriptor *desc;
+    VAImageFormat *expected_format;
+    AVBufferRef *test_surface = NULL;
+    VASurfaceID test_surface_id;
+    VAImage test_image;
+    VAStatus vas;
+    int err, i;
+
+    desc = vaapi_format_from_pix_fmt(hwfc->sw_format);
+    if (!desc) {
+        av_log(hwfc, AV_LOG_ERROR, "Unsupported format: %s.\n",
+               av_get_pix_fmt_name(hwfc->sw_format));
+        return AVERROR(EINVAL);
+    }
+
+    if (!hwfc->pool) {
+        if (!(hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES)) {
+            int need_memory_type = !(hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE);
+            int need_pixel_format = 1;
+            for (i = 0; i < avfc->nb_attributes; i++) {
+                if (avfc->attributes[i].type == VASurfaceAttribMemoryType)
+                    need_memory_type  = 0;
+                if (avfc->attributes[i].type == VASurfaceAttribPixelFormat)
+                    need_pixel_format = 0;
+            }
+            ctx->nb_attributes =
+                avfc->nb_attributes + need_memory_type + need_pixel_format;
+
+            ctx->attributes = av_malloc(ctx->nb_attributes *
+                                        sizeof(*ctx->attributes));
+            if (!ctx->attributes) {
+                err = AVERROR(ENOMEM);
+                goto fail;
+            }
+
+            for (i = 0; i < avfc->nb_attributes; i++)
+                ctx->attributes[i] = avfc->attributes[i];
+            if (need_memory_type) {
+                ctx->attributes[i++] = (VASurfaceAttrib) {
+                    .type          = VASurfaceAttribMemoryType,
+                    .flags         = VA_SURFACE_ATTRIB_SETTABLE,
+                    .value.type    = VAGenericValueTypeInteger,
+                    .value.value.i = VA_SURFACE_ATTRIB_MEM_TYPE_VA,
+                };
+            }
+            if (need_pixel_format) {
+                ctx->attributes[i++] = (VASurfaceAttrib) {
+                    .type          = VASurfaceAttribPixelFormat,
+                    .flags         = VA_SURFACE_ATTRIB_SETTABLE,
+                    .value.type    = VAGenericValueTypeInteger,
+                    .value.value.i = desc->fourcc,
+                };
+            }
+            av_assert0(i == ctx->nb_attributes);
+        } else {
+            ctx->attributes = NULL;
+            ctx->nb_attributes = 0;
+        }
+
+        ctx->rt_format = desc->rt_format;
+
+        if (hwfc->initial_pool_size > 0) {
+            // This pool will be usable as a render target, so we need to store
+            // all of the surface IDs somewhere that vaCreateContext() calls
+            // will be able to access them.
+            avfc->nb_surfaces = 0;
+            avfc->surface_ids = av_malloc(hwfc->initial_pool_size *
+                                          sizeof(*avfc->surface_ids));
+            if (!avfc->surface_ids) {
+                err = AVERROR(ENOMEM);
+                goto fail;
+            }
+        } else {
+            // This pool allows dynamic sizing, and will not be usable as a
+            // render target.
+            avfc->nb_surfaces = 0;
+            avfc->surface_ids = NULL;
+        }
+
+        hwfc->internal->pool_internal =
+            av_buffer_pool_init2(sizeof(VASurfaceID), hwfc,
+                                 &vaapi_pool_alloc, NULL);
+        if (!hwfc->internal->pool_internal) {
+            av_log(hwfc, AV_LOG_ERROR, "Failed to create VAAPI surface pool.\n");
+            err = AVERROR(ENOMEM);
+            goto fail;
+        }
+    }
+
+    // Allocate a single surface to test whether vaDeriveImage() is going
+    // to work for the specific configuration.
+    if (hwfc->pool) {
+        test_surface = av_buffer_pool_get(hwfc->pool);
+        if (!test_surface) {
+            av_log(hwfc, AV_LOG_ERROR, "Unable to allocate a surface from "
+                   "user-configured buffer pool.\n");
+            err = AVERROR(ENOMEM);
+            goto fail;
+        }
+    } else {
+        test_surface = av_buffer_pool_get(hwfc->internal->pool_internal);
+        if (!test_surface) {
+            av_log(hwfc, AV_LOG_ERROR, "Unable to allocate a surface from "
+                   "internal buffer pool.\n");
+            err = AVERROR(ENOMEM);
+            goto fail;
+        }
+    }
+    test_surface_id = (VASurfaceID)(uintptr_t)test_surface->data;
+
+    ctx->derive_works = 0;
+
+    err = vaapi_get_image_format(hwfc->device_ctx,
+                                 hwfc->sw_format, &expected_format);
+    if (err == 0) {
+        vas = vaDeriveImage(hwctx->display, test_surface_id, &test_image);
+        if (vas == VA_STATUS_SUCCESS) {
+            if (expected_format->fourcc == test_image.format.fourcc) {
+                av_log(hwfc, AV_LOG_DEBUG, "Direct mapping possible.\n");
+                ctx->derive_works = 1;
+            } else {
+                av_log(hwfc, AV_LOG_DEBUG, "Direct mapping disabled: "
+                       "derived image format %08x does not match "
+                       "expected format %08x.\n",
+                       expected_format->fourcc, test_image.format.fourcc);
+            }
+            vaDestroyImage(hwctx->display, test_image.image_id);
+        } else {
+            av_log(hwfc, AV_LOG_DEBUG, "Direct mapping disabled: "
+                   "deriving image does not work: "
+                   "%d (%s).\n", vas, vaErrorStr(vas));
+        }
+    } else {
+        av_log(hwfc, AV_LOG_DEBUG, "Direct mapping disabled: "
+               "image format is not supported.\n");
+    }
+
+    av_buffer_unref(&test_surface);
+    return 0;
+
+fail:
+    av_buffer_unref(&test_surface);
+    av_freep(&avfc->surface_ids);
+    av_freep(&ctx->attributes);
+    return err;
+}
+
+static void vaapi_frames_uninit(AVHWFramesContext *hwfc)
+{
+    AVVAAPIFramesContext *avfc = hwfc->hwctx;
+    VAAPIFramesContext    *ctx = hwfc->internal->priv;
+
+    av_freep(&avfc->surface_ids);
+    av_freep(&ctx->attributes);
+}
+
+static int vaapi_get_buffer(AVHWFramesContext *hwfc, AVFrame *frame)
+{
+    frame->buf[0] = av_buffer_pool_get(hwfc->pool);
+    if (!frame->buf[0])
+        return AVERROR(ENOMEM);
+
+    frame->data[3] = frame->buf[0]->data;
+    frame->format  = AV_PIX_FMT_VAAPI;
+    frame->width   = hwfc->width;
+    frame->height  = hwfc->height;
+
+    return 0;
+}
+
+static int vaapi_transfer_get_formats(AVHWFramesContext *hwfc,
+                                      enum AVHWFrameTransferDirection dir,
+                                      enum AVPixelFormat **formats)
+{
+    VAAPIDeviceContext *ctx = hwfc->device_ctx->internal->priv;
+    enum AVPixelFormat *pix_fmts;
+    int i, k, sw_format_available;
+
+    sw_format_available = 0;
+    for (i = 0; i < ctx->nb_formats; i++) {
+        if (ctx->formats[i].pix_fmt == hwfc->sw_format)
+            sw_format_available = 1;
+    }
+
+    pix_fmts = av_malloc((ctx->nb_formats + 1) * sizeof(*pix_fmts));
+    if (!pix_fmts)
+        return AVERROR(ENOMEM);
+
+    if (sw_format_available) {
+        pix_fmts[0] = hwfc->sw_format;
+        k = 1;
+    } else {
+        k = 0;
+    }
+    for (i = 0; i < ctx->nb_formats; i++) {
+        if (ctx->formats[i].pix_fmt == hwfc->sw_format)
+            continue;
+        av_assert0(k < ctx->nb_formats);
+        pix_fmts[k++] = ctx->formats[i].pix_fmt;
+    }
+    pix_fmts[k] = AV_PIX_FMT_NONE;
+
+    *formats = pix_fmts;
+    return 0;
+}
+
+static void vaapi_unmap_frame(AVHWFramesContext *hwfc,
+                              HWMapDescriptor *hwmap)
+{
+    AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
+    VAAPIMapping           *map = hwmap->priv;
+    VASurfaceID surface_id;
+    VAStatus vas;
+
+    surface_id = (VASurfaceID)(uintptr_t)hwmap->source->data[3];
+    av_log(hwfc, AV_LOG_DEBUG, "Unmap surface %#x.\n", surface_id);
+
+    vas = vaUnmapBuffer(hwctx->display, map->image.buf);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(hwfc, AV_LOG_ERROR, "Failed to unmap image from surface "
+               "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
+    }
+
+    if ((map->flags & AV_HWFRAME_MAP_WRITE) &&
+        !(map->flags & AV_HWFRAME_MAP_DIRECT)) {
+        vas = vaPutImage(hwctx->display, surface_id, map->image.image_id,
+                         0, 0, hwfc->width, hwfc->height,
+                         0, 0, hwfc->width, hwfc->height);
+        if (vas != VA_STATUS_SUCCESS) {
+            av_log(hwfc, AV_LOG_ERROR, "Failed to write image to surface "
+                   "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
+        }
+    }
+
+    vas = vaDestroyImage(hwctx->display, map->image.image_id);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(hwfc, AV_LOG_ERROR, "Failed to destroy image from surface "
+               "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
+    }
+
+    av_free(map);
+}
+
+static int vaapi_map_frame(AVHWFramesContext *hwfc,
+                           AVFrame *dst, const AVFrame *src, int flags)
+{
+    AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
+    VAAPIFramesContext *ctx = hwfc->internal->priv;
+    VASurfaceID surface_id;
+    const VAAPIFormatDescriptor *desc;
+    VAImageFormat *image_format;
+    VAAPIMapping *map;
+    VAStatus vas;
+    void *address = NULL;
+    int err, i;
+
+    surface_id = (VASurfaceID)(uintptr_t)src->data[3];
+    av_log(hwfc, AV_LOG_DEBUG, "Map surface %#x.\n", surface_id);
+
+    if (!ctx->derive_works && (flags & AV_HWFRAME_MAP_DIRECT)) {
+        // Requested direct mapping but it is not possible.
+        return AVERROR(EINVAL);
+    }
+    if (dst->format == AV_PIX_FMT_NONE)
+        dst->format = hwfc->sw_format;
+    if (dst->format != hwfc->sw_format && (flags & AV_HWFRAME_MAP_DIRECT)) {
+        // Requested direct mapping but the formats do not match.
+        return AVERROR(EINVAL);
+    }
+
+    err = vaapi_get_image_format(hwfc->device_ctx, dst->format, &image_format);
+    if (err < 0) {
+        // Requested format is not a valid output format.
+        return AVERROR(EINVAL);
+    }
+
+    map = av_malloc(sizeof(*map));
+    if (!map)
+        return AVERROR(ENOMEM);
+    map->flags = flags;
+    map->image.image_id = VA_INVALID_ID;
+
+    vas = vaSyncSurface(hwctx->display, surface_id);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(hwfc, AV_LOG_ERROR, "Failed to sync surface "
+               "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
+        err = AVERROR(EIO);
+        goto fail;
+    }
+
+    // The memory which we map using derive need not be connected to the CPU
+    // in a way conducive to fast access.  On Gen7-Gen9 Intel graphics, the
+    // memory is mappable but not cached, so normal memcpy()-like access is
+    // very slow to read it (but writing is ok).  It is possible to read much
+    // faster with a copy routine which is aware of the limitation, but we
+    // assume for now that the user is not aware of that and would therefore
+    // prefer not to be given direct-mapped memory if they request read access.
+    if (ctx->derive_works && dst->format == hwfc->sw_format &&
+        ((flags & AV_HWFRAME_MAP_DIRECT) || !(flags & AV_HWFRAME_MAP_READ))) {
+        vas = vaDeriveImage(hwctx->display, surface_id, &map->image);
+        if (vas != VA_STATUS_SUCCESS) {
+            av_log(hwfc, AV_LOG_ERROR, "Failed to derive image from "
+                   "surface %#x: %d (%s).\n",
+                   surface_id, vas, vaErrorStr(vas));
+            err = AVERROR(EIO);
+            goto fail;
+        }
+        if (map->image.format.fourcc != image_format->fourcc) {
+            av_log(hwfc, AV_LOG_ERROR, "Derive image of surface %#x "
+                   "is in wrong format: expected %#08x, got %#08x.\n",
+                   surface_id, image_format->fourcc, map->image.format.fourcc);
+            err = AVERROR(EIO);
+            goto fail;
+        }
+        map->flags |= AV_HWFRAME_MAP_DIRECT;
+    } else {
+        vas = vaCreateImage(hwctx->display, image_format,
+                            hwfc->width, hwfc->height, &map->image);
+        if (vas != VA_STATUS_SUCCESS) {
+            av_log(hwfc, AV_LOG_ERROR, "Failed to create image for "
+                   "surface %#x: %d (%s).\n",
+                   surface_id, vas, vaErrorStr(vas));
+            err = AVERROR(EIO);
+            goto fail;
+        }
+        if (!(flags & AV_HWFRAME_MAP_OVERWRITE)) {
+            vas = vaGetImage(hwctx->display, surface_id, 0, 0,
+                             hwfc->width, hwfc->height, map->image.image_id);
+            if (vas != VA_STATUS_SUCCESS) {
+                av_log(hwfc, AV_LOG_ERROR, "Failed to read image from "
+                       "surface %#x: %d (%s).\n",
+                       surface_id, vas, vaErrorStr(vas));
+                err = AVERROR(EIO);
+                goto fail;
+            }
+        }
+    }
+
+    vas = vaMapBuffer(hwctx->display, map->image.buf, &address);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(hwfc, AV_LOG_ERROR, "Failed to map image from surface "
+               "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
+        err = AVERROR(EIO);
+        goto fail;
+    }
+
+    err = ff_hwframe_map_create(src->hw_frames_ctx,
+                                dst, src, &vaapi_unmap_frame, map);
+    if (err < 0)
+        goto fail;
+
+    dst->width  = src->width;
+    dst->height = src->height;
+
+    for (i = 0; i < map->image.num_planes; i++) {
+        dst->data[i] = (uint8_t*)address + map->image.offsets[i];
+        dst->linesize[i] = map->image.pitches[i];
+    }
+
+    desc = vaapi_format_from_fourcc(map->image.format.fourcc);
+    if (desc && desc->chroma_planes_swapped) {
+        // Chroma planes are YVU rather than YUV, so swap them.
+        FFSWAP(uint8_t*, dst->data[1], dst->data[2]);
+    }
+
+    return 0;
+
+fail:
+    if (map) {
+        if (address)
+            vaUnmapBuffer(hwctx->display, map->image.buf);
+        if (map->image.image_id != VA_INVALID_ID)
+            vaDestroyImage(hwctx->display, map->image.image_id);
+        av_free(map);
+    }
+    return err;
+}
+
+static int vaapi_transfer_data_from(AVHWFramesContext *hwfc,
+                                    AVFrame *dst, const AVFrame *src)
+{
+    AVFrame *map;
+    int err;
+
+    if (dst->width > hwfc->width || dst->height > hwfc->height)
+        return AVERROR(EINVAL);
+
+    map = av_frame_alloc();
+    if (!map)
+        return AVERROR(ENOMEM);
+    map->format = dst->format;
+
+    err = vaapi_map_frame(hwfc, map, src, AV_HWFRAME_MAP_READ);
+    if (err)
+        goto fail;
+
+    map->width  = dst->width;
+    map->height = dst->height;
+
+    err = av_frame_copy(dst, map);
+    if (err)
+        goto fail;
+
+    err = 0;
+fail:
+    av_frame_free(&map);
+    return err;
+}
+
+static int vaapi_transfer_data_to(AVHWFramesContext *hwfc,
+                                  AVFrame *dst, const AVFrame *src)
+{
+    AVFrame *map;
+    int err;
+
+    if (src->width > hwfc->width || src->height > hwfc->height)
+        return AVERROR(EINVAL);
+
+    map = av_frame_alloc();
+    if (!map)
+        return AVERROR(ENOMEM);
+    map->format = src->format;
+
+    err = vaapi_map_frame(hwfc, map, dst, AV_HWFRAME_MAP_WRITE | AV_HWFRAME_MAP_OVERWRITE);
+    if (err)
+        goto fail;
+
+    map->width  = src->width;
+    map->height = src->height;
+
+    err = av_frame_copy(map, src);
+    if (err)
+        goto fail;
+
+    err = 0;
+fail:
+    av_frame_free(&map);
+    return err;
+}
+
+static int vaapi_map_to_memory(AVHWFramesContext *hwfc, AVFrame *dst,
+                               const AVFrame *src, int flags)
+{
+    int err;
+
+    if (dst->format != AV_PIX_FMT_NONE) {
+        err = vaapi_get_image_format(hwfc->device_ctx, dst->format, NULL);
+        if (err < 0)
+            return AVERROR(ENOSYS);
+    }
+
+    err = vaapi_map_frame(hwfc, dst, src, flags);
+    if (err)
+        return err;
+
+    err = av_frame_copy_props(dst, src);
+    if (err)
+        return err;
+
+    return 0;
+}
+
+#if CONFIG_LIBDRM
+
+#define DRM_MAP(va, layers, ...) { \
+        VA_FOURCC_ ## va, \
+        layers, \
+        { __VA_ARGS__ } \
+    }
+static const struct {
+    uint32_t va_fourcc;
+    int   nb_layer_formats;
+    uint32_t layer_formats[AV_DRM_MAX_PLANES];
+} vaapi_drm_format_map[] = {
+#ifdef DRM_FORMAT_R8
+    DRM_MAP(NV12, 2, DRM_FORMAT_R8,  DRM_FORMAT_RG88),
+#endif
+    DRM_MAP(NV12, 1, DRM_FORMAT_NV12),
+#if defined(VA_FOURCC_P010) && defined(DRM_FORMAT_R16)
+    DRM_MAP(P010, 2, DRM_FORMAT_R16, DRM_FORMAT_RG1616),
+#endif
+    DRM_MAP(BGRA, 1, DRM_FORMAT_ARGB8888),
+    DRM_MAP(BGRX, 1, DRM_FORMAT_XRGB8888),
+    DRM_MAP(RGBA, 1, DRM_FORMAT_ABGR8888),
+    DRM_MAP(RGBX, 1, DRM_FORMAT_XBGR8888),
+#ifdef VA_FOURCC_ABGR
+    DRM_MAP(ABGR, 1, DRM_FORMAT_RGBA8888),
+    DRM_MAP(XBGR, 1, DRM_FORMAT_RGBX8888),
+#endif
+    DRM_MAP(ARGB, 1, DRM_FORMAT_BGRA8888),
+    DRM_MAP(XRGB, 1, DRM_FORMAT_BGRX8888),
+};
+#undef DRM_MAP
+
+static void vaapi_unmap_from_drm(AVHWFramesContext *dst_fc,
+                                 HWMapDescriptor *hwmap)
+{
+    AVVAAPIDeviceContext *dst_dev = dst_fc->device_ctx->hwctx;
+
+    VASurfaceID surface_id = (VASurfaceID)(uintptr_t)hwmap->priv;
+
+    av_log(dst_fc, AV_LOG_DEBUG, "Destroy surface %#x.\n", surface_id);
+
+    vaDestroySurfaces(dst_dev->display, &surface_id, 1);
+}
+
+static int vaapi_map_from_drm(AVHWFramesContext *src_fc, AVFrame *dst,
+                              const AVFrame *src, int flags)
+{
+    AVHWFramesContext      *dst_fc =
+        (AVHWFramesContext*)dst->hw_frames_ctx->data;
+    AVVAAPIDeviceContext  *dst_dev = dst_fc->device_ctx->hwctx;
+    const AVDRMFrameDescriptor *desc;
+    const VAAPIFormatDescriptor *format_desc;
+    VASurfaceID surface_id;
+    VAStatus vas;
+    uint32_t va_fourcc;
+    int err, i, j, k;
+
+    unsigned long buffer_handle;
+    VASurfaceAttribExternalBuffers buffer_desc;
+    VASurfaceAttrib attrs[2] = {
+        {
+            .type  = VASurfaceAttribMemoryType,
+            .flags = VA_SURFACE_ATTRIB_SETTABLE,
+            .value.type    = VAGenericValueTypeInteger,
+            .value.value.i = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME,
+        },
+        {
+            .type  = VASurfaceAttribExternalBufferDescriptor,
+            .flags = VA_SURFACE_ATTRIB_SETTABLE,
+            .value.type    = VAGenericValueTypePointer,
+            .value.value.p = &buffer_desc,
+        }
+    };
+
+    desc = (AVDRMFrameDescriptor*)src->data[0];
+
+    if (desc->nb_objects != 1) {
+        av_log(dst_fc, AV_LOG_ERROR, "VAAPI can only map frames "
+               "made from a single DRM object.\n");
+        return AVERROR(EINVAL);
+    }
+
+    va_fourcc = 0;
+    for (i = 0; i < FF_ARRAY_ELEMS(vaapi_drm_format_map); i++) {
+        if (desc->nb_layers != vaapi_drm_format_map[i].nb_layer_formats)
+            continue;
+        for (j = 0; j < desc->nb_layers; j++) {
+            if (desc->layers[j].format !=
+                vaapi_drm_format_map[i].layer_formats[j])
+                break;
+        }
+        if (j != desc->nb_layers)
+            continue;
+        va_fourcc = vaapi_drm_format_map[i].va_fourcc;
+        break;
+    }
+    if (!va_fourcc) {
+        av_log(dst_fc, AV_LOG_ERROR, "DRM format not supported "
+               "by VAAPI.\n");
+        return AVERROR(EINVAL);
+    }
+
+    av_log(dst_fc, AV_LOG_DEBUG, "Map DRM object %d to VAAPI as "
+           "%08x.\n", desc->objects[0].fd, va_fourcc);
+
+    format_desc = vaapi_format_from_fourcc(va_fourcc);
+    av_assert0(format_desc);
+
+    buffer_handle = desc->objects[0].fd;
+    buffer_desc.pixel_format = va_fourcc;
+    buffer_desc.width        = src_fc->width;
+    buffer_desc.height       = src_fc->height;
+    buffer_desc.data_size    = desc->objects[0].size;
+    buffer_desc.buffers      = &buffer_handle;
+    buffer_desc.num_buffers  = 1;
+    buffer_desc.flags        = 0;
+
+    k = 0;
+    for (i = 0; i < desc->nb_layers; i++) {
+        for (j = 0; j < desc->layers[i].nb_planes; j++) {
+            buffer_desc.pitches[k] = desc->layers[i].planes[j].pitch;
+            buffer_desc.offsets[k] = desc->layers[i].planes[j].offset;
+            ++k;
+        }
+    }
+    buffer_desc.num_planes = k;
+
+    if (format_desc->chroma_planes_swapped &&
+        buffer_desc.num_planes == 3) {
+        FFSWAP(uint32_t, buffer_desc.pitches[1], buffer_desc.pitches[2]);
+        FFSWAP(uint32_t, buffer_desc.offsets[1], buffer_desc.offsets[2]);
+    }
+
+    vas = vaCreateSurfaces(dst_dev->display, format_desc->rt_format,
+                           src->width, src->height,
+                           &surface_id, 1,
+                           attrs, FF_ARRAY_ELEMS(attrs));
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(dst_fc, AV_LOG_ERROR, "Failed to create surface from DRM "
+               "object: %d (%s).\n", vas, vaErrorStr(vas));
+        return AVERROR(EIO);
+    }
+    av_log(dst_fc, AV_LOG_DEBUG, "Create surface %#x.\n", surface_id);
+
+    err = ff_hwframe_map_create(dst->hw_frames_ctx, dst, src,
+                                &vaapi_unmap_from_drm,
+                                (void*)(uintptr_t)surface_id);
+    if (err < 0)
+        return err;
+
+    dst->width   = src->width;
+    dst->height  = src->height;
+    dst->data[3] = (uint8_t*)(uintptr_t)surface_id;
+
+    av_log(dst_fc, AV_LOG_DEBUG, "Mapped DRM object %d to "
+           "surface %#x.\n", desc->objects[0].fd, surface_id);
+
+    return 0;
+}
+
+#if VA_CHECK_VERSION(1, 1, 0)
+static void vaapi_unmap_to_drm_esh(AVHWFramesContext *hwfc,
+                                   HWMapDescriptor *hwmap)
+{
+    AVDRMFrameDescriptor *drm_desc = hwmap->priv;
+    int i;
+
+    for (i = 0; i < drm_desc->nb_objects; i++)
+        close(drm_desc->objects[i].fd);
+
+    av_freep(&drm_desc);
+}
+
+static int vaapi_map_to_drm_esh(AVHWFramesContext *hwfc, AVFrame *dst,
+                                const AVFrame *src, int flags)
+{
+    AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
+    VASurfaceID surface_id;
+    VAStatus vas;
+    VADRMPRIMESurfaceDescriptor va_desc;
+    AVDRMFrameDescriptor *drm_desc = NULL;
+    uint32_t export_flags;
+    int err, i, j;
+
+    surface_id = (VASurfaceID)(uintptr_t)src->data[3];
+
+    export_flags = VA_EXPORT_SURFACE_SEPARATE_LAYERS;
+    if (flags & AV_HWFRAME_MAP_READ)
+        export_flags |= VA_EXPORT_SURFACE_READ_ONLY;
+    if (flags & AV_HWFRAME_MAP_WRITE)
+        export_flags |= VA_EXPORT_SURFACE_WRITE_ONLY;
+
+    vas = vaExportSurfaceHandle(hwctx->display, surface_id,
+                                VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2,
+                                export_flags, &va_desc);
+    if (vas != VA_STATUS_SUCCESS) {
+        if (vas == VA_STATUS_ERROR_UNIMPLEMENTED)
+            return AVERROR(ENOSYS);
+        av_log(hwfc, AV_LOG_ERROR, "Failed to export surface %#x: "
+               "%d (%s).\n", surface_id, vas, vaErrorStr(vas));
+        return AVERROR(EIO);
+    }
+
+    drm_desc = av_mallocz(sizeof(*drm_desc));
+    if (!drm_desc) {
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    // By some bizarre coincidence, these structures are very similar...
+    drm_desc->nb_objects = va_desc.num_objects;
+    for (i = 0; i < va_desc.num_objects; i++) {
+        drm_desc->objects[i].fd   = va_desc.objects[i].fd;
+        drm_desc->objects[i].size = va_desc.objects[i].size;
+        drm_desc->objects[i].format_modifier =
+            va_desc.objects[i].drm_format_modifier;
+    }
+    drm_desc->nb_layers = va_desc.num_layers;
+    for (i = 0; i < va_desc.num_layers; i++) {
+        drm_desc->layers[i].format    = va_desc.layers[i].drm_format;
+        drm_desc->layers[i].nb_planes = va_desc.layers[i].num_planes;
+        for (j = 0; j < va_desc.layers[i].num_planes; j++) {
+            drm_desc->layers[i].planes[j].object_index =
+                va_desc.layers[i].object_index[j];
+            drm_desc->layers[i].planes[j].offset =
+                va_desc.layers[i].offset[j];
+            drm_desc->layers[i].planes[j].pitch =
+                va_desc.layers[i].pitch[j];
+        }
+    }
+
+    err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
+                                &vaapi_unmap_to_drm_esh, drm_desc);
+    if (err < 0)
+        goto fail;
+
+    dst->width   = src->width;
+    dst->height  = src->height;
+    dst->data[0] = (uint8_t*)drm_desc;
+
+    return 0;
+
+fail:
+    for (i = 0; i < va_desc.num_objects; i++)
+        close(va_desc.objects[i].fd);
+    av_freep(&drm_desc);
+    return err;
+}
+#endif
+
+#if VA_CHECK_VERSION(0, 36, 0)
+typedef struct VAAPIDRMImageBufferMapping {
+    VAImage      image;
+    VABufferInfo buffer_info;
+
+    AVDRMFrameDescriptor drm_desc;
+} VAAPIDRMImageBufferMapping;
+
+static void vaapi_unmap_to_drm_abh(AVHWFramesContext *hwfc,
+                                  HWMapDescriptor *hwmap)
+{
+    AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
+    VAAPIDRMImageBufferMapping *mapping = hwmap->priv;
+    VASurfaceID surface_id;
+    VAStatus vas;
+
+    surface_id = (VASurfaceID)(uintptr_t)hwmap->source->data[3];
+    av_log(hwfc, AV_LOG_DEBUG, "Unmap VAAPI surface %#x from DRM.\n",
+           surface_id);
+
+    // DRM PRIME file descriptors are closed by vaReleaseBufferHandle(),
+    // so we shouldn't close them separately.
+
+    vas = vaReleaseBufferHandle(hwctx->display, mapping->image.buf);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(hwfc, AV_LOG_ERROR, "Failed to release buffer "
+               "handle of image %#x (derived from surface %#x): "
+               "%d (%s).\n", mapping->image.buf, surface_id,
+               vas, vaErrorStr(vas));
+    }
+
+    vas = vaDestroyImage(hwctx->display, mapping->image.image_id);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(hwfc, AV_LOG_ERROR, "Failed to destroy image "
+               "derived from surface %#x: %d (%s).\n",
+               surface_id, vas, vaErrorStr(vas));
+    }
+
+    av_free(mapping);
+}
+
+static int vaapi_map_to_drm_abh(AVHWFramesContext *hwfc, AVFrame *dst,
+                                const AVFrame *src, int flags)
+{
+    AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
+    VAAPIDRMImageBufferMapping *mapping = NULL;
+    VASurfaceID surface_id;
+    VAStatus vas;
+    int err, i, p;
+
+    surface_id = (VASurfaceID)(uintptr_t)src->data[3];
+    av_log(hwfc, AV_LOG_DEBUG, "Map VAAPI surface %#x to DRM.\n",
+           surface_id);
+
+    mapping = av_mallocz(sizeof(*mapping));
+    if (!mapping)
+        return AVERROR(ENOMEM);
+
+    vas = vaDeriveImage(hwctx->display, surface_id,
+                        &mapping->image);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(hwfc, AV_LOG_ERROR, "Failed to derive image from "
+               "surface %#x: %d (%s).\n",
+               surface_id, vas, vaErrorStr(vas));
+        err = AVERROR(EIO);
+        goto fail;
+    }
+
+    for (i = 0; i < FF_ARRAY_ELEMS(vaapi_drm_format_map); i++) {
+        if (vaapi_drm_format_map[i].va_fourcc ==
+            mapping->image.format.fourcc)
+            break;
+    }
+    if (i >= FF_ARRAY_ELEMS(vaapi_drm_format_map)) {
+        av_log(hwfc, AV_LOG_ERROR, "No matching DRM format for "
+               "VAAPI format %#x.\n", mapping->image.format.fourcc);
+        err = AVERROR(EINVAL);
+        goto fail_derived;
+    }
+
+    mapping->buffer_info.mem_type =
+        VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME;
+
+    mapping->drm_desc.nb_layers =
+        vaapi_drm_format_map[i].nb_layer_formats;
+    if (mapping->drm_desc.nb_layers > 1) {
+        if (mapping->drm_desc.nb_layers != mapping->image.num_planes) {
+            av_log(hwfc, AV_LOG_ERROR, "Image properties do not match "
+                   "expected format: got %d planes, but expected %d.\n",
+                   mapping->image.num_planes, mapping->drm_desc.nb_layers);
+            err = AVERROR(EINVAL);
+            goto fail_derived;
+        }
+
+        for(p = 0; p < mapping->drm_desc.nb_layers; p++) {
+            mapping->drm_desc.layers[p] = (AVDRMLayerDescriptor) {
+                .format    = vaapi_drm_format_map[i].layer_formats[p],
+                .nb_planes = 1,
+                .planes[0] = {
+                    .object_index = 0,
+                    .offset       = mapping->image.offsets[p],
+                    .pitch        = mapping->image.pitches[p],
+                },
+            };
+        }
+    } else {
+        mapping->drm_desc.layers[0].format =
+            vaapi_drm_format_map[i].layer_formats[0];
+        mapping->drm_desc.layers[0].nb_planes = mapping->image.num_planes;
+        for (p = 0; p < mapping->image.num_planes; p++) {
+            mapping->drm_desc.layers[0].planes[p] = (AVDRMPlaneDescriptor) {
+                .object_index = 0,
+                .offset       = mapping->image.offsets[p],
+                .pitch        = mapping->image.pitches[p],
+            };
+        }
+    }
+
+    vas = vaAcquireBufferHandle(hwctx->display, mapping->image.buf,
+                                &mapping->buffer_info);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(hwfc, AV_LOG_ERROR, "Failed to get buffer "
+               "handle from image %#x (derived from surface %#x): "
+               "%d (%s).\n", mapping->image.buf, surface_id,
+               vas, vaErrorStr(vas));
+        err = AVERROR(EIO);
+        goto fail_derived;
+    }
+
+    av_log(hwfc, AV_LOG_DEBUG, "DRM PRIME fd is %ld.\n",
+           mapping->buffer_info.handle);
+
+    mapping->drm_desc.nb_objects = 1;
+    mapping->drm_desc.objects[0] = (AVDRMObjectDescriptor) {
+        .fd   = mapping->buffer_info.handle,
+        .size = mapping->image.data_size,
+        // There is no way to get the format modifier with this API.
+        .format_modifier = DRM_FORMAT_MOD_INVALID,
+    };
+
+    err = ff_hwframe_map_create(src->hw_frames_ctx,
+                                dst, src, &vaapi_unmap_to_drm_abh,
+                                mapping);
+    if (err < 0)
+        goto fail_mapped;
+
+    dst->data[0] = (uint8_t*)&mapping->drm_desc;
+    dst->width   = src->width;
+    dst->height  = src->height;
+
+    return 0;
+
+fail_mapped:
+    vaReleaseBufferHandle(hwctx->display, mapping->image.buf);
+fail_derived:
+    vaDestroyImage(hwctx->display, mapping->image.image_id);
+fail:
+    av_freep(&mapping);
+    return err;
+}
+#endif
+
+static int vaapi_map_to_drm(AVHWFramesContext *hwfc, AVFrame *dst,
+                            const AVFrame *src, int flags)
+{
+#if VA_CHECK_VERSION(1, 1, 0)
+    int err;
+    err = vaapi_map_to_drm_esh(hwfc, dst, src, flags);
+    if (err != AVERROR(ENOSYS))
+        return err;
+#endif
+#if VA_CHECK_VERSION(0, 36, 0)
+    return vaapi_map_to_drm_abh(hwfc, dst, src, flags);
+#endif
+    return AVERROR(ENOSYS);
+}
+
+#endif /* CONFIG_LIBDRM */
+
+static int vaapi_map_to(AVHWFramesContext *hwfc, AVFrame *dst,
+                        const AVFrame *src, int flags)
+{
+    switch (src->format) {
+#if CONFIG_LIBDRM
+    case AV_PIX_FMT_DRM_PRIME:
+        return vaapi_map_from_drm(hwfc, dst, src, flags);
+#endif
+    default:
+        return AVERROR(ENOSYS);
+    }
+}
+
+static int vaapi_map_from(AVHWFramesContext *hwfc, AVFrame *dst,
+                          const AVFrame *src, int flags)
+{
+    switch (dst->format) {
+#if CONFIG_LIBDRM
+    case AV_PIX_FMT_DRM_PRIME:
+        return vaapi_map_to_drm(hwfc, dst, src, flags);
+#endif
+    default:
+        return vaapi_map_to_memory(hwfc, dst, src, flags);
+    }
+}
+
+static void vaapi_device_free(AVHWDeviceContext *ctx)
+{
+    AVVAAPIDeviceContext *hwctx = ctx->hwctx;
+    VAAPIDevicePriv      *priv  = ctx->user_opaque;
+
+    if (hwctx->display)
+        vaTerminate(hwctx->display);
+
+#if HAVE_VAAPI_X11
+    if (priv->x11_display)
+        XCloseDisplay(priv->x11_display);
+#endif
+
+    if (priv->drm_fd >= 0)
+        close(priv->drm_fd);
+
+    av_freep(&priv);
+}
+
+#if CONFIG_VAAPI_1
+static void vaapi_device_log_error(void *context, const char *message)
+{
+    AVHWDeviceContext *ctx = context;
+
+    av_log(ctx, AV_LOG_ERROR, "libva: %s", message);
+}
+
+static void vaapi_device_log_info(void *context, const char *message)
+{
+    AVHWDeviceContext *ctx = context;
+
+    av_log(ctx, AV_LOG_VERBOSE, "libva: %s", message);
+}
+#endif
+
+static int vaapi_device_connect(AVHWDeviceContext *ctx,
+                                VADisplay display)
+{
+    AVVAAPIDeviceContext *hwctx = ctx->hwctx;
+    int major, minor;
+    VAStatus vas;
+
+#if CONFIG_VAAPI_1
+    vaSetErrorCallback(display, &vaapi_device_log_error, ctx);
+    vaSetInfoCallback (display, &vaapi_device_log_info,  ctx);
+#endif
+
+    hwctx->display = display;
+
+    vas = vaInitialize(display, &major, &minor);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(ctx, AV_LOG_ERROR, "Failed to initialise VAAPI "
+               "connection: %d (%s).\n", vas, vaErrorStr(vas));
+        return AVERROR(EIO);
+    }
+    av_log(ctx, AV_LOG_VERBOSE, "Initialised VAAPI connection: "
+           "version %d.%d\n", major, minor);
+
+    return 0;
+}
+
+static int vaapi_device_create(AVHWDeviceContext *ctx, const char *device,
+                               AVDictionary *opts, int flags)
+{
+    VAAPIDevicePriv *priv;
+    VADisplay display = NULL;
+    const AVDictionaryEntry *ent;
+    int try_drm, try_x11, try_all;
+
+    priv = av_mallocz(sizeof(*priv));
+    if (!priv)
+        return AVERROR(ENOMEM);
+
+    priv->drm_fd = -1;
+
+    ctx->user_opaque = priv;
+    ctx->free        = vaapi_device_free;
+
+    ent = av_dict_get(opts, "connection_type", NULL, 0);
+    if (ent) {
+        try_all = try_drm = try_x11 = 0;
+        if (!strcmp(ent->value, "drm")) {
+            try_drm = 1;
+        } else if (!strcmp(ent->value, "x11")) {
+            try_x11 = 1;
+        } else {
+            av_log(ctx, AV_LOG_ERROR, "Invalid connection type %s.\n",
+                   ent->value);
+            return AVERROR(EINVAL);
+        }
+    } else {
+        try_all = 1;
+        try_drm = HAVE_VAAPI_DRM;
+        try_x11 = HAVE_VAAPI_X11;
+    }
+
+#if HAVE_VAAPI_DRM
+    while (!display && try_drm) {
+        // If the device is specified, try to open it as a DRM device node.
+        // If not, look for a usable render node, possibly restricted to those
+        // using a specified kernel driver.
+        int loglevel = try_all ? AV_LOG_VERBOSE : AV_LOG_ERROR;
+        if (device) {
+            priv->drm_fd = open(device, O_RDWR);
+            if (priv->drm_fd < 0) {
+                av_log(ctx, loglevel, "Failed to open %s as "
+                       "DRM device node.\n", device);
+                break;
+            }
+        } else {
+            char path[64];
+            int n, max_devices = 8;
+#if CONFIG_LIBDRM
+            const AVDictionaryEntry *kernel_driver;
+            kernel_driver = av_dict_get(opts, "kernel_driver", NULL, 0);
+#endif
+            for (n = 0; n < max_devices; n++) {
+                snprintf(path, sizeof(path),
+                         "/dev/dri/renderD%d", 128 + n);
+                priv->drm_fd = open(path, O_RDWR);
+                if (priv->drm_fd < 0) {
+                    av_log(ctx, AV_LOG_VERBOSE, "Cannot open "
+                           "DRM render node for device %d.\n", n);
+                    break;
+                }
+#if CONFIG_LIBDRM
+                if (kernel_driver) {
+                    drmVersion *info;
+                    info = drmGetVersion(priv->drm_fd);
+                    if (strcmp(kernel_driver->value, info->name)) {
+                        av_log(ctx, AV_LOG_VERBOSE, "Ignoring device %d "
+                               "with non-matching kernel driver (%s).\n",
+                               n, info->name);
+                        drmFreeVersion(info);
+                        close(priv->drm_fd);
+                        priv->drm_fd = -1;
+                        continue;
+                    }
+                    av_log(ctx, AV_LOG_VERBOSE, "Trying to use "
+                           "DRM render node for device %d, "
+                           "with matching kernel driver (%s).\n",
+                           n, info->name);
+                    drmFreeVersion(info);
+                } else
+#endif
+                {
+                    av_log(ctx, AV_LOG_VERBOSE, "Trying to use "
+                           "DRM render node for device %d.\n", n);
+                }
+                break;
+            }
+            if (n >= max_devices)
+                break;
+        }
+
+        display = vaGetDisplayDRM(priv->drm_fd);
+        if (!display) {
+            av_log(ctx, AV_LOG_VERBOSE, "Cannot open a VA display "
+                   "from DRM device %s.\n", device);
+            return AVERROR_EXTERNAL;
+        }
+        break;
+    }
+#endif
+
+#if HAVE_VAAPI_X11
+    if (!display && try_x11) {
+        // Try to open the device as an X11 display.
+        priv->x11_display = XOpenDisplay(device);
+        if (!priv->x11_display) {
+            av_log(ctx, AV_LOG_VERBOSE, "Cannot open X11 display "
+                   "%s.\n", XDisplayName(device));
+        } else {
+            display = vaGetDisplay(priv->x11_display);
+            if (!display) {
+                av_log(ctx, AV_LOG_ERROR, "Cannot open a VA display "
+                       "from X11 display %s.\n", XDisplayName(device));
+                return AVERROR_UNKNOWN;
+            }
+
+            av_log(ctx, AV_LOG_VERBOSE, "Opened VA display via "
+                   "X11 display %s.\n", XDisplayName(device));
+        }
+    }
+#endif
+
+    if (!display) {
+        if (device)
+            av_log(ctx, AV_LOG_ERROR, "No VA display found for "
+                   "device %s.\n", device);
+        else
+            av_log(ctx, AV_LOG_ERROR, "No VA display found for "
+                   "any default device.\n");
+        return AVERROR(EINVAL);
+    }
+
+    ent = av_dict_get(opts, "driver", NULL, 0);
+    if (ent) {
+#if VA_CHECK_VERSION(0, 38, 0)
+        VAStatus vas;
+        vas = vaSetDriverName(display, ent->value);
+        if (vas != VA_STATUS_SUCCESS) {
+            av_log(ctx, AV_LOG_ERROR, "Failed to set driver name to "
+                   "%s: %d (%s).\n", ent->value, vas, vaErrorStr(vas));
+            vaTerminate(display);
+            return AVERROR_EXTERNAL;
+        }
+#else
+        av_log(ctx, AV_LOG_WARNING, "Driver name setting is not "
+               "supported with this VAAPI version.\n");
+#endif
+    }
+
+    return vaapi_device_connect(ctx, display);
+}
+
+static int vaapi_device_derive(AVHWDeviceContext *ctx,
+                               AVHWDeviceContext *src_ctx, int flags)
+{
+#if HAVE_VAAPI_DRM
+    if (src_ctx->type == AV_HWDEVICE_TYPE_DRM) {
+        AVDRMDeviceContext *src_hwctx = src_ctx->hwctx;
+        VADisplay *display;
+        VAAPIDevicePriv *priv;
+
+        if (src_hwctx->fd < 0) {
+            av_log(ctx, AV_LOG_ERROR, "DRM instance requires an associated "
+                   "device to derive a VA display from.\n");
+            return AVERROR(EINVAL);
+        }
+
+        priv = av_mallocz(sizeof(*priv));
+        if (!priv)
+            return AVERROR(ENOMEM);
+
+        // Inherits the fd from the source context, which will close it.
+        priv->drm_fd = -1;
+
+        ctx->user_opaque = priv;
+        ctx->free        = &vaapi_device_free;
+
+        display = vaGetDisplayDRM(src_hwctx->fd);
+        if (!display) {
+            av_log(ctx, AV_LOG_ERROR, "Failed to open a VA display from "
+                   "DRM device.\n");
+            return AVERROR(EIO);
+        }
+
+        return vaapi_device_connect(ctx, display);
+    }
+#endif
+    return AVERROR(ENOSYS);
+}
+
+const HWContextType ff_hwcontext_type_vaapi = {
+    .type                   = AV_HWDEVICE_TYPE_VAAPI,
+    .name                   = "VAAPI",
+
+    .device_hwctx_size      = sizeof(AVVAAPIDeviceContext),
+    .device_priv_size       = sizeof(VAAPIDeviceContext),
+    .device_hwconfig_size   = sizeof(AVVAAPIHWConfig),
+    .frames_hwctx_size      = sizeof(AVVAAPIFramesContext),
+    .frames_priv_size       = sizeof(VAAPIFramesContext),
+
+    .device_create          = &vaapi_device_create,
+    .device_derive          = &vaapi_device_derive,
+    .device_init            = &vaapi_device_init,
+    .device_uninit          = &vaapi_device_uninit,
+    .frames_get_constraints = &vaapi_frames_get_constraints,
+    .frames_init            = &vaapi_frames_init,
+    .frames_uninit          = &vaapi_frames_uninit,
+    .frames_get_buffer      = &vaapi_get_buffer,
+    .transfer_get_formats   = &vaapi_transfer_get_formats,
+    .transfer_data_to       = &vaapi_transfer_data_to,
+    .transfer_data_from     = &vaapi_transfer_data_from,
+    .map_to                 = &vaapi_map_to,
+    .map_from               = &vaapi_map_from,
+
+    .pix_fmts = (const enum AVPixelFormat[]) {
+        AV_PIX_FMT_VAAPI,
+        AV_PIX_FMT_NONE
+    },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_vaapi.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_vaapi.h
new file mode 100644
index 000000000..0b2e071cb
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_vaapi.h
@@ -0,0 +1,117 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HWCONTEXT_VAAPI_H
+#define AVUTIL_HWCONTEXT_VAAPI_H
+
+#include <va/va.h>
+
+/**
+ * @file
+ * API-specific header for AV_HWDEVICE_TYPE_VAAPI.
+ *
+ * Dynamic frame pools are supported, but note that any pool used as a render
+ * target is required to be of fixed size in order to be be usable as an
+ * argument to vaCreateContext().
+ *
+ * For user-allocated pools, AVHWFramesContext.pool must return AVBufferRefs
+ * with the data pointer set to a VASurfaceID.
+ */
+
+enum {
+    /**
+     * The quirks field has been set by the user and should not be detected
+     * automatically by av_hwdevice_ctx_init().
+     */
+    AV_VAAPI_DRIVER_QUIRK_USER_SET = (1 << 0),
+    /**
+     * The driver does not destroy parameter buffers when they are used by
+     * vaRenderPicture().  Additional code will be required to destroy them
+     * separately afterwards.
+     */
+    AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS = (1 << 1),
+
+    /**
+     * The driver does not support the VASurfaceAttribMemoryType attribute,
+     * so the surface allocation code will not try to use it.
+     */
+    AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE = (1 << 2),
+
+    /**
+     * The driver does not support surface attributes at all.
+     * The surface allocation code will never pass them to surface allocation,
+     * and the results of the vaQuerySurfaceAttributes() call will be faked.
+     */
+    AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES = (1 << 3),
+};
+
+/**
+ * VAAPI connection details.
+ *
+ * Allocated as AVHWDeviceContext.hwctx
+ */
+typedef struct AVVAAPIDeviceContext {
+    /**
+     * The VADisplay handle, to be filled by the user.
+     */
+    VADisplay display;
+    /**
+     * Driver quirks to apply - this is filled by av_hwdevice_ctx_init(),
+     * with reference to a table of known drivers, unless the
+     * AV_VAAPI_DRIVER_QUIRK_USER_SET bit is already present.  The user
+     * may need to refer to this field when performing any later
+     * operations using VAAPI with the same VADisplay.
+     */
+    unsigned int driver_quirks;
+} AVVAAPIDeviceContext;
+
+/**
+ * VAAPI-specific data associated with a frame pool.
+ *
+ * Allocated as AVHWFramesContext.hwctx.
+ */
+typedef struct AVVAAPIFramesContext {
+    /**
+     * Set by the user to apply surface attributes to all surfaces in
+     * the frame pool.  If null, default settings are used.
+     */
+    VASurfaceAttrib *attributes;
+    int           nb_attributes;
+    /**
+     * The surfaces IDs of all surfaces in the pool after creation.
+     * Only valid if AVHWFramesContext.initial_pool_size was positive.
+     * These are intended to be used as the render_targets arguments to
+     * vaCreateContext().
+     */
+    VASurfaceID     *surface_ids;
+    int           nb_surfaces;
+} AVVAAPIFramesContext;
+
+/**
+ * VAAPI hardware pipeline configuration details.
+ *
+ * Allocated with av_hwdevice_hwconfig_alloc().
+ */
+typedef struct AVVAAPIHWConfig {
+    /**
+     * ID of a VAAPI pipeline configuration.
+     */
+    VAConfigID config_id;
+} AVVAAPIHWConfig;
+
+#endif /* AVUTIL_HWCONTEXT_VAAPI_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_vdpau.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_vdpau.c
new file mode 100644
index 000000000..6b8c1d5f7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_vdpau.c
@@ -0,0 +1,511 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include <stdint.h>
+#include <string.h>
+
+#include <vdpau/vdpau.h>
+
+#include "buffer.h"
+#include "common.h"
+#include "hwcontext.h"
+#include "hwcontext_internal.h"
+#include "hwcontext_vdpau.h"
+#include "mem.h"
+#include "pixfmt.h"
+#include "pixdesc.h"
+
+typedef struct VDPAUDeviceContext {
+    VdpVideoSurfaceQueryGetPutBitsYCbCrCapabilities *get_transfer_caps;
+    VdpVideoSurfaceGetBitsYCbCr                     *get_data;
+    VdpVideoSurfacePutBitsYCbCr                     *put_data;
+    VdpVideoSurfaceCreate                           *surf_create;
+    VdpVideoSurfaceDestroy                          *surf_destroy;
+
+    enum AVPixelFormat *pix_fmts[3];
+    int              nb_pix_fmts[3];
+} VDPAUDeviceContext;
+
+typedef struct VDPAUFramesContext {
+    VdpVideoSurfaceGetBitsYCbCr *get_data;
+    VdpVideoSurfacePutBitsYCbCr *put_data;
+    VdpChromaType chroma_type;
+    int chroma_idx;
+
+    const enum AVPixelFormat *pix_fmts;
+    int                       nb_pix_fmts;
+} VDPAUFramesContext;
+
+typedef struct VDPAUPixFmtMap {
+    VdpYCbCrFormat vdpau_fmt;
+    enum AVPixelFormat pix_fmt;
+} VDPAUPixFmtMap;
+
+static const VDPAUPixFmtMap pix_fmts_420[] = {
+    { VDP_YCBCR_FORMAT_NV12, AV_PIX_FMT_NV12    },
+    { VDP_YCBCR_FORMAT_YV12, AV_PIX_FMT_YUV420P },
+    { 0,                     AV_PIX_FMT_NONE,   },
+};
+
+static const VDPAUPixFmtMap pix_fmts_422[] = {
+    { VDP_YCBCR_FORMAT_NV12, AV_PIX_FMT_NV16    },
+    { VDP_YCBCR_FORMAT_YV12, AV_PIX_FMT_YUV422P },
+    { VDP_YCBCR_FORMAT_UYVY, AV_PIX_FMT_UYVY422 },
+    { VDP_YCBCR_FORMAT_YUYV, AV_PIX_FMT_YUYV422 },
+    { 0,                     AV_PIX_FMT_NONE,   },
+};
+
+static const VDPAUPixFmtMap pix_fmts_444[] = {
+#ifdef VDP_YCBCR_FORMAT_Y_U_V_444
+    { VDP_YCBCR_FORMAT_Y_U_V_444, AV_PIX_FMT_YUV444P },
+#endif
+    { 0,                          AV_PIX_FMT_NONE,   },
+};
+
+static const struct {
+    VdpChromaType chroma_type;
+    enum AVPixelFormat frames_sw_format;
+    const VDPAUPixFmtMap *map;
+} vdpau_pix_fmts[] = {
+    { VDP_CHROMA_TYPE_420, AV_PIX_FMT_YUV420P, pix_fmts_420 },
+    { VDP_CHROMA_TYPE_422, AV_PIX_FMT_YUV422P, pix_fmts_422 },
+    { VDP_CHROMA_TYPE_444, AV_PIX_FMT_YUV444P, pix_fmts_444 },
+};
+
+static int count_pixfmts(const VDPAUPixFmtMap *map)
+{
+    int count = 0;
+    while (map->pix_fmt != AV_PIX_FMT_NONE) {
+        map++;
+        count++;
+    }
+    return count;
+}
+
+static int vdpau_init_pixmfts(AVHWDeviceContext *ctx)
+{
+    AVVDPAUDeviceContext *hwctx = ctx->hwctx;
+    VDPAUDeviceContext    *priv = ctx->internal->priv;
+    int i;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(priv->pix_fmts); i++) {
+        const VDPAUPixFmtMap *map = vdpau_pix_fmts[i].map;
+        int nb_pix_fmts;
+
+        nb_pix_fmts = count_pixfmts(map);
+        priv->pix_fmts[i] = av_malloc_array(nb_pix_fmts + 1, sizeof(*priv->pix_fmts[i]));
+        if (!priv->pix_fmts[i])
+            return AVERROR(ENOMEM);
+
+        nb_pix_fmts = 0;
+        while (map->pix_fmt != AV_PIX_FMT_NONE) {
+            VdpBool supported;
+            VdpStatus err = priv->get_transfer_caps(hwctx->device, vdpau_pix_fmts[i].chroma_type,
+                                                    map->vdpau_fmt, &supported);
+            if (err == VDP_STATUS_OK && supported)
+                priv->pix_fmts[i][nb_pix_fmts++] = map->pix_fmt;
+            map++;
+        }
+        priv->pix_fmts[i][nb_pix_fmts++] = AV_PIX_FMT_NONE;
+        priv->nb_pix_fmts[i]             = nb_pix_fmts;
+    }
+
+    return 0;
+}
+
+#define GET_CALLBACK(id, result)                                                \
+do {                                                                            \
+    void *tmp;                                                                  \
+    err = hwctx->get_proc_address(hwctx->device, id, &tmp);                     \
+    if (err != VDP_STATUS_OK) {                                                 \
+        av_log(ctx, AV_LOG_ERROR, "Error getting the " #id " callback.\n");     \
+        return AVERROR_UNKNOWN;                                                 \
+    }                                                                           \
+    result = tmp;                                                               \
+} while (0)
+
+static int vdpau_device_init(AVHWDeviceContext *ctx)
+{
+    AVVDPAUDeviceContext *hwctx = ctx->hwctx;
+    VDPAUDeviceContext   *priv  = ctx->internal->priv;
+    VdpStatus             err;
+    int                   ret;
+
+    GET_CALLBACK(VDP_FUNC_ID_VIDEO_SURFACE_QUERY_GET_PUT_BITS_Y_CB_CR_CAPABILITIES,
+                 priv->get_transfer_caps);
+    GET_CALLBACK(VDP_FUNC_ID_VIDEO_SURFACE_GET_BITS_Y_CB_CR, priv->get_data);
+    GET_CALLBACK(VDP_FUNC_ID_VIDEO_SURFACE_PUT_BITS_Y_CB_CR, priv->put_data);
+    GET_CALLBACK(VDP_FUNC_ID_VIDEO_SURFACE_CREATE,           priv->surf_create);
+    GET_CALLBACK(VDP_FUNC_ID_VIDEO_SURFACE_DESTROY,          priv->surf_destroy);
+
+    ret = vdpau_init_pixmfts(ctx);
+    if (ret < 0) {
+        av_log(ctx, AV_LOG_ERROR, "Error querying the supported pixel formats\n");
+        return ret;
+    }
+
+    return 0;
+}
+
+static void vdpau_device_uninit(AVHWDeviceContext *ctx)
+{
+    VDPAUDeviceContext *priv = ctx->internal->priv;
+    int i;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(priv->pix_fmts); i++)
+        av_freep(&priv->pix_fmts[i]);
+}
+
+static int vdpau_frames_get_constraints(AVHWDeviceContext *ctx,
+                                        const void *hwconfig,
+                                        AVHWFramesConstraints *constraints)
+{
+    VDPAUDeviceContext   *priv  = ctx->internal->priv;
+    int nb_sw_formats = 0;
+    int i;
+
+    constraints->valid_sw_formats = av_malloc_array(FF_ARRAY_ELEMS(vdpau_pix_fmts) + 1,
+                                                    sizeof(*constraints->valid_sw_formats));
+    if (!constraints->valid_sw_formats)
+        return AVERROR(ENOMEM);
+
+    for (i = 0; i < FF_ARRAY_ELEMS(vdpau_pix_fmts); i++) {
+        if (priv->nb_pix_fmts[i] > 1)
+            constraints->valid_sw_formats[nb_sw_formats++] = vdpau_pix_fmts[i].frames_sw_format;
+    }
+    constraints->valid_sw_formats[nb_sw_formats] = AV_PIX_FMT_NONE;
+
+    constraints->valid_hw_formats = av_malloc_array(2, sizeof(*constraints->valid_hw_formats));
+    if (!constraints->valid_hw_formats)
+        return AVERROR(ENOMEM);
+
+    constraints->valid_hw_formats[0] = AV_PIX_FMT_VDPAU;
+    constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE;
+
+    return 0;
+}
+
+static void vdpau_buffer_free(void *opaque, uint8_t *data)
+{
+    AVHWFramesContext          *ctx = opaque;
+    VDPAUDeviceContext *device_priv = ctx->device_ctx->internal->priv;
+    VdpVideoSurface            surf = (VdpVideoSurface)(uintptr_t)data;
+
+    device_priv->surf_destroy(surf);
+}
+
+static AVBufferRef *vdpau_pool_alloc(void *opaque, int size)
+{
+    AVHWFramesContext             *ctx = opaque;
+    VDPAUFramesContext           *priv = ctx->internal->priv;
+    AVVDPAUDeviceContext *device_hwctx = ctx->device_ctx->hwctx;
+    VDPAUDeviceContext    *device_priv = ctx->device_ctx->internal->priv;
+
+    AVBufferRef *ret;
+    VdpVideoSurface surf;
+    VdpStatus err;
+
+    err = device_priv->surf_create(device_hwctx->device, priv->chroma_type,
+                                   ctx->width, ctx->height, &surf);
+    if (err != VDP_STATUS_OK) {
+        av_log(ctx, AV_LOG_ERROR, "Error allocating a VDPAU video surface\n");
+        return NULL;
+    }
+
+    ret = av_buffer_create((uint8_t*)(uintptr_t)surf, sizeof(surf),
+                           vdpau_buffer_free, ctx, AV_BUFFER_FLAG_READONLY);
+    if (!ret) {
+        device_priv->surf_destroy(surf);
+        return NULL;
+    }
+
+    return ret;
+}
+
+static int vdpau_frames_init(AVHWFramesContext *ctx)
+{
+    VDPAUDeviceContext *device_priv = ctx->device_ctx->internal->priv;
+    VDPAUFramesContext        *priv = ctx->internal->priv;
+
+    int i;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(vdpau_pix_fmts); i++) {
+        if (vdpau_pix_fmts[i].frames_sw_format == ctx->sw_format) {
+            priv->chroma_type = vdpau_pix_fmts[i].chroma_type;
+            priv->chroma_idx  = i;
+            priv->pix_fmts    = device_priv->pix_fmts[i];
+            priv->nb_pix_fmts = device_priv->nb_pix_fmts[i];
+            break;
+        }
+    }
+    if (priv->nb_pix_fmts < 2) {
+        av_log(ctx, AV_LOG_ERROR, "Unsupported sw format: %s\n",
+               av_get_pix_fmt_name(ctx->sw_format));
+        return AVERROR(ENOSYS);
+    }
+
+    if (!ctx->pool) {
+        ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(VdpVideoSurface), ctx,
+                                                            vdpau_pool_alloc, NULL);
+        if (!ctx->internal->pool_internal)
+            return AVERROR(ENOMEM);
+    }
+
+    priv->get_data = device_priv->get_data;
+    priv->put_data = device_priv->put_data;
+
+    return 0;
+}
+
+static int vdpau_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
+{
+    frame->buf[0] = av_buffer_pool_get(ctx->pool);
+    if (!frame->buf[0])
+        return AVERROR(ENOMEM);
+
+    frame->data[3] = frame->buf[0]->data;
+    frame->format  = AV_PIX_FMT_VDPAU;
+    frame->width   = ctx->width;
+    frame->height  = ctx->height;
+
+    return 0;
+}
+
+static int vdpau_transfer_get_formats(AVHWFramesContext *ctx,
+                                      enum AVHWFrameTransferDirection dir,
+                                      enum AVPixelFormat **formats)
+{
+    VDPAUFramesContext *priv  = ctx->internal->priv;
+
+    enum AVPixelFormat *fmts;
+
+    if (priv->nb_pix_fmts == 1) {
+        av_log(ctx, AV_LOG_ERROR,
+               "No target formats are supported for this chroma type\n");
+        return AVERROR(ENOSYS);
+    }
+
+    fmts = av_malloc_array(priv->nb_pix_fmts, sizeof(*fmts));
+    if (!fmts)
+        return AVERROR(ENOMEM);
+
+    memcpy(fmts, priv->pix_fmts, sizeof(*fmts) * (priv->nb_pix_fmts));
+    *formats = fmts;
+
+    return 0;
+}
+
+static int vdpau_transfer_data_from(AVHWFramesContext *ctx, AVFrame *dst,
+                                    const AVFrame *src)
+{
+    VDPAUFramesContext *priv = ctx->internal->priv;
+    VdpVideoSurface     surf = (VdpVideoSurface)(uintptr_t)src->data[3];
+
+    void *data[3];
+    uint32_t linesize[3];
+
+    const VDPAUPixFmtMap *map;
+    VdpYCbCrFormat vdpau_format;
+    VdpStatus err;
+    int i;
+
+    for (i = 0; i< FF_ARRAY_ELEMS(data) && dst->data[i]; i++) {
+        data[i] = dst->data[i];
+        if (dst->linesize[i] < 0 || dst->linesize[i] > UINT32_MAX) {
+            av_log(ctx, AV_LOG_ERROR,
+                   "The linesize %d cannot be represented as uint32\n",
+                   dst->linesize[i]);
+            return AVERROR(ERANGE);
+        }
+        linesize[i] = dst->linesize[i];
+    }
+
+    map = vdpau_pix_fmts[priv->chroma_idx].map;
+    for (i = 0; map[i].pix_fmt != AV_PIX_FMT_NONE; i++) {
+        if (map[i].pix_fmt == dst->format) {
+            vdpau_format = map[i].vdpau_fmt;
+            break;
+        }
+    }
+    if (map[i].pix_fmt == AV_PIX_FMT_NONE) {
+        av_log(ctx, AV_LOG_ERROR,
+               "Unsupported target pixel format: %s\n",
+               av_get_pix_fmt_name(dst->format));
+        return AVERROR(EINVAL);
+    }
+
+    if ((vdpau_format == VDP_YCBCR_FORMAT_YV12)
+#ifdef VDP_YCBCR_FORMAT_Y_U_V_444
+            || (vdpau_format == VDP_YCBCR_FORMAT_Y_U_V_444)
+#endif
+            )
+        FFSWAP(void*, data[1], data[2]);
+
+    err = priv->get_data(surf, vdpau_format, data, linesize);
+    if (err != VDP_STATUS_OK) {
+        av_log(ctx, AV_LOG_ERROR, "Error retrieving the data from a VDPAU surface\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+
+static int vdpau_transfer_data_to(AVHWFramesContext *ctx, AVFrame *dst,
+                                  const AVFrame *src)
+{
+    VDPAUFramesContext *priv = ctx->internal->priv;
+    VdpVideoSurface     surf = (VdpVideoSurface)(uintptr_t)dst->data[3];
+
+    const void *data[3];
+    uint32_t linesize[3];
+
+    const VDPAUPixFmtMap *map;
+    VdpYCbCrFormat vdpau_format;
+    VdpStatus err;
+    int i;
+
+    for (i = 0; i< FF_ARRAY_ELEMS(data) && src->data[i]; i++) {
+        data[i] = src->data[i];
+        if (src->linesize[i] < 0 || src->linesize[i] > UINT32_MAX) {
+            av_log(ctx, AV_LOG_ERROR,
+                   "The linesize %d cannot be represented as uint32\n",
+                   src->linesize[i]);
+            return AVERROR(ERANGE);
+        }
+        linesize[i] = src->linesize[i];
+    }
+
+    map = vdpau_pix_fmts[priv->chroma_idx].map;
+    for (i = 0; map[i].pix_fmt != AV_PIX_FMT_NONE; i++) {
+        if (map[i].pix_fmt == src->format) {
+            vdpau_format = map[i].vdpau_fmt;
+            break;
+        }
+    }
+    if (map[i].pix_fmt == AV_PIX_FMT_NONE) {
+        av_log(ctx, AV_LOG_ERROR,
+               "Unsupported source pixel format: %s\n",
+               av_get_pix_fmt_name(src->format));
+        return AVERROR(EINVAL);
+    }
+
+    if ((vdpau_format == VDP_YCBCR_FORMAT_YV12)
+#ifdef VDP_YCBCR_FORMAT_Y_U_V_444
+            || (vdpau_format == VDP_YCBCR_FORMAT_Y_U_V_444)
+#endif
+            )
+        FFSWAP(const void*, data[1], data[2]);
+
+    err = priv->put_data(surf, vdpau_format, data, linesize);
+    if (err != VDP_STATUS_OK) {
+        av_log(ctx, AV_LOG_ERROR, "Error uploading the data to a VDPAU surface\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+
+#if HAVE_VDPAU_X11
+#include <vdpau/vdpau_x11.h>
+#include <X11/Xlib.h>
+
+typedef struct VDPAUDevicePriv {
+    VdpDeviceDestroy *device_destroy;
+    Display *dpy;
+} VDPAUDevicePriv;
+
+static void vdpau_device_free(AVHWDeviceContext *ctx)
+{
+    AVVDPAUDeviceContext *hwctx = ctx->hwctx;
+    VDPAUDevicePriv       *priv = ctx->user_opaque;
+
+    if (priv->device_destroy)
+        priv->device_destroy(hwctx->device);
+    if (priv->dpy)
+        XCloseDisplay(priv->dpy);
+    av_freep(&priv);
+}
+
+static int vdpau_device_create(AVHWDeviceContext *ctx, const char *device,
+                               AVDictionary *opts, int flags)
+{
+    AVVDPAUDeviceContext *hwctx = ctx->hwctx;
+
+    VDPAUDevicePriv *priv;
+    VdpStatus err;
+    VdpGetInformationString *get_information_string;
+    const char *display, *vendor;
+
+    priv = av_mallocz(sizeof(*priv));
+    if (!priv)
+        return AVERROR(ENOMEM);
+
+    ctx->user_opaque = priv;
+    ctx->free        = vdpau_device_free;
+
+    priv->dpy = XOpenDisplay(device);
+    if (!priv->dpy) {
+        av_log(ctx, AV_LOG_ERROR, "Cannot open the X11 display %s.\n",
+               XDisplayName(device));
+        return AVERROR_UNKNOWN;
+    }
+    display = XDisplayString(priv->dpy);
+
+    err = vdp_device_create_x11(priv->dpy, XDefaultScreen(priv->dpy),
+                                &hwctx->device, &hwctx->get_proc_address);
+    if (err != VDP_STATUS_OK) {
+        av_log(ctx, AV_LOG_ERROR, "VDPAU device creation on X11 display %s failed.\n",
+               display);
+        return AVERROR_UNKNOWN;
+    }
+
+    GET_CALLBACK(VDP_FUNC_ID_GET_INFORMATION_STRING, get_information_string);
+    GET_CALLBACK(VDP_FUNC_ID_DEVICE_DESTROY,         priv->device_destroy);
+
+    get_information_string(&vendor);
+    av_log(ctx, AV_LOG_VERBOSE, "Successfully created a VDPAU device (%s) on "
+           "X11 display %s\n", vendor, display);
+
+    return 0;
+}
+#endif
+
+const HWContextType ff_hwcontext_type_vdpau = {
+    .type                 = AV_HWDEVICE_TYPE_VDPAU,
+    .name                 = "VDPAU",
+
+    .device_hwctx_size    = sizeof(AVVDPAUDeviceContext),
+    .device_priv_size     = sizeof(VDPAUDeviceContext),
+    .frames_priv_size     = sizeof(VDPAUFramesContext),
+
+#if HAVE_VDPAU_X11
+    .device_create        = vdpau_device_create,
+#endif
+    .device_init          = vdpau_device_init,
+    .device_uninit        = vdpau_device_uninit,
+    .frames_get_constraints = vdpau_frames_get_constraints,
+    .frames_init          = vdpau_frames_init,
+    .frames_get_buffer    = vdpau_get_buffer,
+    .transfer_get_formats = vdpau_transfer_get_formats,
+    .transfer_data_to     = vdpau_transfer_data_to,
+    .transfer_data_from   = vdpau_transfer_data_from,
+
+    .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_VDPAU, AV_PIX_FMT_NONE },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_vdpau.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_vdpau.h
new file mode 100644
index 000000000..1b7ea1e44
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_vdpau.h
@@ -0,0 +1,44 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HWCONTEXT_VDPAU_H
+#define AVUTIL_HWCONTEXT_VDPAU_H
+
+#include <vdpau/vdpau.h>
+
+/**
+ * @file
+ * An API-specific header for AV_HWDEVICE_TYPE_VDPAU.
+ *
+ * This API supports dynamic frame pools. AVHWFramesContext.pool must return
+ * AVBufferRefs whose data pointer is a VdpVideoSurface.
+ */
+
+/**
+ * This struct is allocated as AVHWDeviceContext.hwctx
+ */
+typedef struct AVVDPAUDeviceContext {
+    VdpDevice          device;
+    VdpGetProcAddress *get_proc_address;
+} AVVDPAUDeviceContext;
+
+/**
+ * AVHWFramesContext.hwctx is currently not used
+ */
+
+#endif /* AVUTIL_HWCONTEXT_VDPAU_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_videotoolbox.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_videotoolbox.c
new file mode 100644
index 000000000..6eac2c077
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_videotoolbox.c
@@ -0,0 +1,246 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include <stdint.h>
+#include <string.h>
+
+#include <VideoToolbox/VideoToolbox.h>
+
+#include "buffer.h"
+#include "common.h"
+#include "hwcontext.h"
+#include "hwcontext_internal.h"
+#include "hwcontext_videotoolbox.h"
+#include "mem.h"
+#include "pixfmt.h"
+#include "pixdesc.h"
+
+static const struct {
+    uint32_t cv_fmt;
+    enum AVPixelFormat pix_fmt;
+} cv_pix_fmts[] = {
+    { kCVPixelFormatType_420YpCbCr8Planar,              AV_PIX_FMT_YUV420P },
+    { kCVPixelFormatType_422YpCbCr8,                    AV_PIX_FMT_UYVY422 },
+    { kCVPixelFormatType_32BGRA,                        AV_PIX_FMT_BGRA },
+#ifdef kCFCoreFoundationVersionNumber10_7
+    { kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange,  AV_PIX_FMT_NV12 },
+#endif
+#if HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE
+    { kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange, AV_PIX_FMT_P010 },
+#endif
+};
+
+enum AVPixelFormat av_map_videotoolbox_format_to_pixfmt(uint32_t cv_fmt)
+{
+    int i;
+    for (i = 0; i < FF_ARRAY_ELEMS(cv_pix_fmts); i++) {
+        if (cv_pix_fmts[i].cv_fmt == cv_fmt)
+            return cv_pix_fmts[i].pix_fmt;
+    }
+    return AV_PIX_FMT_NONE;
+}
+
+uint32_t av_map_videotoolbox_format_from_pixfmt(enum AVPixelFormat pix_fmt)
+{
+    int i;
+    for (i = 0; i < FF_ARRAY_ELEMS(cv_pix_fmts); i++) {
+        if (cv_pix_fmts[i].pix_fmt == pix_fmt)
+            return cv_pix_fmts[i].cv_fmt;
+    }
+    return 0;
+}
+
+static int vt_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
+{
+    frame->buf[0] = av_buffer_pool_get(ctx->pool);
+    if (!frame->buf[0])
+        return AVERROR(ENOMEM);
+
+    frame->data[3] = frame->buf[0]->data;
+    frame->format  = AV_PIX_FMT_VIDEOTOOLBOX;
+    frame->width   = ctx->width;
+    frame->height  = ctx->height;
+
+    return 0;
+}
+
+static int vt_transfer_get_formats(AVHWFramesContext *ctx,
+                                   enum AVHWFrameTransferDirection dir,
+                                   enum AVPixelFormat **formats)
+{
+    enum AVPixelFormat *fmts = av_malloc_array(2, sizeof(*fmts));
+    if (!fmts)
+        return AVERROR(ENOMEM);
+
+    fmts[0] = ctx->sw_format;
+    fmts[1] = AV_PIX_FMT_NONE;
+
+    *formats = fmts;
+    return 0;
+}
+
+static void vt_unmap(AVHWFramesContext *ctx, HWMapDescriptor *hwmap)
+{
+    CVPixelBufferRef pixbuf = (CVPixelBufferRef)hwmap->source->data[3];
+
+    CVPixelBufferUnlockBaseAddress(pixbuf, (uintptr_t)hwmap->priv);
+}
+
+static int vt_map_frame(AVHWFramesContext *ctx, AVFrame *dst, const AVFrame *src,
+                        int flags)
+{
+    CVPixelBufferRef pixbuf = (CVPixelBufferRef)src->data[3];
+    OSType pixel_format = CVPixelBufferGetPixelFormatType(pixbuf);
+    CVReturn err;
+    uint32_t map_flags = 0;
+    int ret;
+    int i;
+    enum AVPixelFormat format;
+
+    format = av_map_videotoolbox_format_to_pixfmt(pixel_format);
+    if (dst->format != format) {
+        av_log(ctx, AV_LOG_ERROR, "Unsupported or mismatching pixel format: %s\n",
+               av_fourcc2str(pixel_format));
+        return AVERROR_UNKNOWN;
+    }
+
+    if (CVPixelBufferGetWidth(pixbuf) != ctx->width ||
+        CVPixelBufferGetHeight(pixbuf) != ctx->height) {
+        av_log(ctx, AV_LOG_ERROR, "Inconsistent frame dimensions.\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    if (flags == AV_HWFRAME_MAP_READ)
+        map_flags = kCVPixelBufferLock_ReadOnly;
+
+    err = CVPixelBufferLockBaseAddress(pixbuf, map_flags);
+    if (err != kCVReturnSuccess) {
+        av_log(ctx, AV_LOG_ERROR, "Error locking the pixel buffer.\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    if (CVPixelBufferIsPlanar(pixbuf)) {
+        int planes = CVPixelBufferGetPlaneCount(pixbuf);
+        for (i = 0; i < planes; i++) {
+            dst->data[i]     = CVPixelBufferGetBaseAddressOfPlane(pixbuf, i);
+            dst->linesize[i] = CVPixelBufferGetBytesPerRowOfPlane(pixbuf, i);
+        }
+    } else {
+        dst->data[0]     = CVPixelBufferGetBaseAddress(pixbuf);
+        dst->linesize[0] = CVPixelBufferGetBytesPerRow(pixbuf);
+    }
+
+    ret = ff_hwframe_map_create(src->hw_frames_ctx, dst, src, vt_unmap,
+                                (void *)(uintptr_t)map_flags);
+    if (ret < 0)
+        goto unlock;
+
+    return 0;
+
+unlock:
+    CVPixelBufferUnlockBaseAddress(pixbuf, map_flags);
+    return ret;
+}
+
+static int vt_transfer_data_from(AVHWFramesContext *hwfc,
+                                 AVFrame *dst, const AVFrame *src)
+{
+    AVFrame *map;
+    int err;
+
+    if (dst->width > hwfc->width || dst->height > hwfc->height)
+        return AVERROR(EINVAL);
+
+    map = av_frame_alloc();
+    if (!map)
+        return AVERROR(ENOMEM);
+    map->format = dst->format;
+
+    err = vt_map_frame(hwfc, map, src, AV_HWFRAME_MAP_READ);
+    if (err)
+        goto fail;
+
+    map->width  = dst->width;
+    map->height = dst->height;
+
+    err = av_frame_copy(dst, map);
+    if (err)
+        goto fail;
+
+    err = 0;
+fail:
+    av_frame_free(&map);
+    return err;
+}
+
+static int vt_transfer_data_to(AVHWFramesContext *hwfc,
+                               AVFrame *dst, const AVFrame *src)
+{
+    AVFrame *map;
+    int err;
+
+    if (src->width > hwfc->width || src->height > hwfc->height)
+        return AVERROR(EINVAL);
+
+    map = av_frame_alloc();
+    if (!map)
+        return AVERROR(ENOMEM);
+    map->format = src->format;
+
+    err = vt_map_frame(hwfc, map, dst, AV_HWFRAME_MAP_WRITE | AV_HWFRAME_MAP_OVERWRITE);
+    if (err)
+        goto fail;
+
+    map->width  = src->width;
+    map->height = src->height;
+
+    err = av_frame_copy(map, src);
+    if (err)
+        goto fail;
+
+    err = 0;
+fail:
+    av_frame_free(&map);
+    return err;
+}
+
+static int vt_device_create(AVHWDeviceContext *ctx, const char *device,
+                            AVDictionary *opts, int flags)
+{
+    if (device && device[0]) {
+        av_log(ctx, AV_LOG_ERROR, "Device selection unsupported.\n");
+        return AVERROR_UNKNOWN;
+    }
+
+    return 0;
+}
+
+const HWContextType ff_hwcontext_type_videotoolbox = {
+    .type                 = AV_HWDEVICE_TYPE_VIDEOTOOLBOX,
+    .name                 = "videotoolbox",
+
+    .device_create        = vt_device_create,
+    .frames_get_buffer    = vt_get_buffer,
+    .transfer_get_formats = vt_transfer_get_formats,
+    .transfer_data_to     = vt_transfer_data_to,
+    .transfer_data_from   = vt_transfer_data_from,
+
+    .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_VIDEOTOOLBOX, AV_PIX_FMT_NONE },
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_videotoolbox.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_videotoolbox.h
new file mode 100644
index 000000000..380918d92
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/hwcontext_videotoolbox.h
@@ -0,0 +1,54 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H
+#define AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H
+
+#include <stdint.h>
+
+#include <VideoToolbox/VideoToolbox.h>
+
+#include "pixfmt.h"
+
+/**
+ * @file
+ * An API-specific header for AV_HWDEVICE_TYPE_VIDEOTOOLBOX.
+ *
+ * This API currently does not support frame allocation, as the raw VideoToolbox
+ * API does allocation, and FFmpeg itself never has the need to allocate frames.
+ *
+ * If the API user sets a custom pool, AVHWFramesContext.pool must return
+ * AVBufferRefs whose data pointer is a CVImageBufferRef or CVPixelBufferRef.
+ *
+ * Currently AVHWDeviceContext.hwctx and AVHWFramesContext.hwctx are always
+ * NULL.
+ */
+
+/**
+ * Convert a VideoToolbox (actually CoreVideo) format to AVPixelFormat.
+ * Returns AV_PIX_FMT_NONE if no known equivalent was found.
+ */
+enum AVPixelFormat av_map_videotoolbox_format_to_pixfmt(uint32_t cv_fmt);
+
+/**
+ * Convert an AVPixelFormat to a VideoToolbox (actually CoreVideo) format.
+ * Returns 0 if no known equivalent was found.
+ */
+uint32_t av_map_videotoolbox_format_from_pixfmt(enum AVPixelFormat pix_fmt);
+
+#endif /* AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/imgutils.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/imgutils.c
new file mode 100644
index 000000000..c733cb5cf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/imgutils.c
@@ -0,0 +1,645 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * misc image utilities
+ */
+
+#include "avassert.h"
+#include "common.h"
+#include "imgutils.h"
+#include "imgutils_internal.h"
+#include "internal.h"
+#include "intreadwrite.h"
+#include "log.h"
+#include "mathematics.h"
+#include "pixdesc.h"
+#include "rational.h"
+
+void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4],
+                                const AVPixFmtDescriptor *pixdesc)
+{
+    int i;
+    memset(max_pixsteps, 0, 4*sizeof(max_pixsteps[0]));
+    if (max_pixstep_comps)
+        memset(max_pixstep_comps, 0, 4*sizeof(max_pixstep_comps[0]));
+
+    for (i = 0; i < 4; i++) {
+        const AVComponentDescriptor *comp = &(pixdesc->comp[i]);
+        if (comp->step > max_pixsteps[comp->plane]) {
+            max_pixsteps[comp->plane] = comp->step;
+            if (max_pixstep_comps)
+                max_pixstep_comps[comp->plane] = i;
+        }
+    }
+}
+
+static inline
+int image_get_linesize(int width, int plane,
+                       int max_step, int max_step_comp,
+                       const AVPixFmtDescriptor *desc)
+{
+    int s, shifted_w, linesize;
+
+    if (!desc)
+        return AVERROR(EINVAL);
+
+    if (width < 0)
+        return AVERROR(EINVAL);
+    s = (max_step_comp == 1 || max_step_comp == 2) ? desc->log2_chroma_w : 0;
+    shifted_w = ((width + (1 << s) - 1)) >> s;
+    if (shifted_w && max_step > INT_MAX / shifted_w)
+        return AVERROR(EINVAL);
+    linesize = max_step * shifted_w;
+
+    if (desc->flags & AV_PIX_FMT_FLAG_BITSTREAM)
+        linesize = (linesize + 7) >> 3;
+    return linesize;
+}
+
+int av_image_get_linesize(enum AVPixelFormat pix_fmt, int width, int plane)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    int max_step     [4];       /* max pixel step for each plane */
+    int max_step_comp[4];       /* the component for each plane which has the max pixel step */
+
+    if (!desc || desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
+        return AVERROR(EINVAL);
+
+    av_image_fill_max_pixsteps(max_step, max_step_comp, desc);
+    return image_get_linesize(width, plane, max_step[plane], max_step_comp[plane], desc);
+}
+
+int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
+{
+    int i, ret;
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    int max_step     [4];       /* max pixel step for each plane */
+    int max_step_comp[4];       /* the component for each plane which has the max pixel step */
+
+    memset(linesizes, 0, 4*sizeof(linesizes[0]));
+
+    if (!desc || desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
+        return AVERROR(EINVAL);
+
+    av_image_fill_max_pixsteps(max_step, max_step_comp, desc);
+    for (i = 0; i < 4; i++) {
+        if ((ret = image_get_linesize(width, i, max_step[i], max_step_comp[i], desc)) < 0)
+            return ret;
+        linesizes[i] = ret;
+    }
+
+    return 0;
+}
+
+int av_image_fill_pointers(uint8_t *data[4], enum AVPixelFormat pix_fmt, int height,
+                           uint8_t *ptr, const int linesizes[4])
+{
+    int i, total_size, size[4] = { 0 }, has_plane[4] = { 0 };
+
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    memset(data     , 0, sizeof(data[0])*4);
+
+    if (!desc || desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
+        return AVERROR(EINVAL);
+
+    data[0] = ptr;
+    if (linesizes[0] > (INT_MAX - 1024) / height)
+        return AVERROR(EINVAL);
+    size[0] = linesizes[0] * height;
+
+    if (desc->flags & AV_PIX_FMT_FLAG_PAL ||
+        desc->flags & FF_PSEUDOPAL) {
+        data[1] = ptr + size[0]; /* palette is stored here as 256 32 bits words */
+        return size[0] + 256 * 4;
+    }
+
+    for (i = 0; i < 4; i++)
+        has_plane[desc->comp[i].plane] = 1;
+
+    total_size = size[0];
+    for (i = 1; i < 4 && has_plane[i]; i++) {
+        int h, s = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
+        data[i] = data[i-1] + size[i-1];
+        h = (height + (1 << s) - 1) >> s;
+        if (linesizes[i] > INT_MAX / h)
+            return AVERROR(EINVAL);
+        size[i] = h * linesizes[i];
+        if (total_size > INT_MAX - size[i])
+            return AVERROR(EINVAL);
+        total_size += size[i];
+    }
+
+    return total_size;
+}
+
+int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt)
+{
+    int i;
+
+    for (i = 0; i < 256; i++) {
+        int r, g, b;
+
+        switch (pix_fmt) {
+        case AV_PIX_FMT_RGB8:
+            r = (i>>5    )*36;
+            g = ((i>>2)&7)*36;
+            b = (i&3     )*85;
+            break;
+        case AV_PIX_FMT_BGR8:
+            b = (i>>6    )*85;
+            g = ((i>>3)&7)*36;
+            r = (i&7     )*36;
+            break;
+        case AV_PIX_FMT_RGB4_BYTE:
+            r = (i>>3    )*255;
+            g = ((i>>1)&3)*85;
+            b = (i&1     )*255;
+            break;
+        case AV_PIX_FMT_BGR4_BYTE:
+            b = (i>>3    )*255;
+            g = ((i>>1)&3)*85;
+            r = (i&1     )*255;
+            break;
+        case AV_PIX_FMT_GRAY8:
+            r = b = g = i;
+            break;
+        default:
+            return AVERROR(EINVAL);
+        }
+        pal[i] = b + (g << 8) + (r << 16) + (0xFFU << 24);
+    }
+
+    return 0;
+}
+
+int av_image_alloc(uint8_t *pointers[4], int linesizes[4],
+                   int w, int h, enum AVPixelFormat pix_fmt, int align)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    int i, ret;
+    uint8_t *buf;
+
+    if (!desc)
+        return AVERROR(EINVAL);
+
+    if ((ret = av_image_check_size(w, h, 0, NULL)) < 0)
+        return ret;
+    if ((ret = av_image_fill_linesizes(linesizes, pix_fmt, align>7 ? FFALIGN(w, 8) : w)) < 0)
+        return ret;
+
+    for (i = 0; i < 4; i++)
+        linesizes[i] = FFALIGN(linesizes[i], align);
+
+    if ((ret = av_image_fill_pointers(pointers, pix_fmt, h, NULL, linesizes)) < 0)
+        return ret;
+    buf = av_malloc(ret + align);
+    if (!buf)
+        return AVERROR(ENOMEM);
+    if ((ret = av_image_fill_pointers(pointers, pix_fmt, h, buf, linesizes)) < 0) {
+        av_free(buf);
+        return ret;
+    }
+    if (desc->flags & AV_PIX_FMT_FLAG_PAL || (desc->flags & FF_PSEUDOPAL && pointers[1])) {
+        avpriv_set_systematic_pal2((uint32_t*)pointers[1], pix_fmt);
+        if (align < 4) {
+            av_log(NULL, AV_LOG_ERROR, "Formats with a palette require a minimum alignment of 4\n");
+            return AVERROR(EINVAL);
+        }
+    }
+
+    if ((desc->flags & AV_PIX_FMT_FLAG_PAL ||
+         desc->flags & FF_PSEUDOPAL) && pointers[1] &&
+        pointers[1] - pointers[0] > linesizes[0] * h) {
+        /* zero-initialize the padding before the palette */
+        memset(pointers[0] + linesizes[0] * h, 0,
+               pointers[1] - pointers[0] - linesizes[0] * h);
+    }
+
+    return ret;
+}
+
+typedef struct ImgUtils {
+    const AVClass *class;
+    int   log_offset;
+    void *log_ctx;
+} ImgUtils;
+
+static const AVClass imgutils_class = {
+    .class_name                = "IMGUTILS",
+    .item_name                 = av_default_item_name,
+    .option                    = NULL,
+    .version                   = LIBAVUTIL_VERSION_INT,
+    .log_level_offset_offset   = offsetof(ImgUtils, log_offset),
+    .parent_log_context_offset = offsetof(ImgUtils, log_ctx),
+};
+
+int av_image_check_size2(unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx)
+{
+    ImgUtils imgutils = {
+        .class      = &imgutils_class,
+        .log_offset = log_offset,
+        .log_ctx    = log_ctx,
+    };
+    int64_t stride = av_image_get_linesize(pix_fmt, w, 0);
+    if (stride <= 0)
+        stride = 8LL*w;
+    stride += 128*8;
+
+    if ((int)w<=0 || (int)h<=0 || stride >= INT_MAX || stride*(uint64_t)(h+128) >= INT_MAX) {
+        av_log(&imgutils, AV_LOG_ERROR, "Picture size %ux%u is invalid\n", w, h);
+        return AVERROR(EINVAL);
+    }
+
+    if (max_pixels < INT64_MAX) {
+        if (w*(int64_t)h > max_pixels) {
+            av_log(&imgutils, AV_LOG_ERROR,
+                    "Picture size %ux%u exceeds specified max pixel count %"PRId64", see the documentation if you wish to increase it\n",
+                    w, h, max_pixels);
+            return AVERROR(EINVAL);
+        }
+    }
+
+    return 0;
+}
+
+int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
+{
+    return av_image_check_size2(w, h, INT64_MAX, AV_PIX_FMT_NONE, log_offset, log_ctx);
+}
+
+int av_image_check_sar(unsigned int w, unsigned int h, AVRational sar)
+{
+    int64_t scaled_dim;
+
+    if (sar.den <= 0 || sar.num < 0)
+        return AVERROR(EINVAL);
+
+    if (!sar.num || sar.num == sar.den)
+        return 0;
+
+    if (sar.num < sar.den)
+        scaled_dim = av_rescale_rnd(w, sar.num, sar.den, AV_ROUND_ZERO);
+    else
+        scaled_dim = av_rescale_rnd(h, sar.den, sar.num, AV_ROUND_ZERO);
+
+    if (scaled_dim > 0)
+        return 0;
+
+    return AVERROR(EINVAL);
+}
+
+static void image_copy_plane(uint8_t       *dst, ptrdiff_t dst_linesize,
+                             const uint8_t *src, ptrdiff_t src_linesize,
+                             ptrdiff_t bytewidth, int height)
+{
+    if (!dst || !src)
+        return;
+    av_assert0(FFABS(src_linesize) >= bytewidth);
+    av_assert0(FFABS(dst_linesize) >= bytewidth);
+    for (;height > 0; height--) {
+        memcpy(dst, src, bytewidth);
+        dst += dst_linesize;
+        src += src_linesize;
+    }
+}
+
+static void image_copy_plane_uc_from(uint8_t       *dst, ptrdiff_t dst_linesize,
+                                     const uint8_t *src, ptrdiff_t src_linesize,
+                                     ptrdiff_t bytewidth, int height)
+{
+    int ret = -1;
+
+#if ARCH_X86
+    ret = ff_image_copy_plane_uc_from_x86(dst, dst_linesize, src, src_linesize,
+                                          bytewidth, height);
+#endif
+
+    if (ret < 0)
+        image_copy_plane(dst, dst_linesize, src, src_linesize, bytewidth, height);
+}
+
+void av_image_copy_plane(uint8_t       *dst, int dst_linesize,
+                         const uint8_t *src, int src_linesize,
+                         int bytewidth, int height)
+{
+    image_copy_plane(dst, dst_linesize, src, src_linesize, bytewidth, height);
+}
+
+static void image_copy(uint8_t *dst_data[4], const ptrdiff_t dst_linesizes[4],
+                       const uint8_t *src_data[4], const ptrdiff_t src_linesizes[4],
+                       enum AVPixelFormat pix_fmt, int width, int height,
+                       void (*copy_plane)(uint8_t *, ptrdiff_t, const uint8_t *,
+                                          ptrdiff_t, ptrdiff_t, int))
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+
+    if (!desc || desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
+        return;
+
+    if (desc->flags & AV_PIX_FMT_FLAG_PAL ||
+        desc->flags & FF_PSEUDOPAL) {
+        copy_plane(dst_data[0], dst_linesizes[0],
+                   src_data[0], src_linesizes[0],
+                   width, height);
+        /* copy the palette */
+        if ((desc->flags & AV_PIX_FMT_FLAG_PAL) || (dst_data[1] && src_data[1]))
+            memcpy(dst_data[1], src_data[1], 4*256);
+    } else {
+        int i, planes_nb = 0;
+
+        for (i = 0; i < desc->nb_components; i++)
+            planes_nb = FFMAX(planes_nb, desc->comp[i].plane + 1);
+
+        for (i = 0; i < planes_nb; i++) {
+            int h = height;
+            ptrdiff_t bwidth = av_image_get_linesize(pix_fmt, width, i);
+            if (bwidth < 0) {
+                av_log(NULL, AV_LOG_ERROR, "av_image_get_linesize failed\n");
+                return;
+            }
+            if (i == 1 || i == 2) {
+                h = AV_CEIL_RSHIFT(height, desc->log2_chroma_h);
+            }
+            copy_plane(dst_data[i], dst_linesizes[i],
+                       src_data[i], src_linesizes[i],
+                       bwidth, h);
+        }
+    }
+}
+
+void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
+                   const uint8_t *src_data[4], const int src_linesizes[4],
+                   enum AVPixelFormat pix_fmt, int width, int height)
+{
+    ptrdiff_t dst_linesizes1[4], src_linesizes1[4];
+    int i;
+
+    for (i = 0; i < 4; i++) {
+        dst_linesizes1[i] = dst_linesizes[i];
+        src_linesizes1[i] = src_linesizes[i];
+    }
+
+    image_copy(dst_data, dst_linesizes1, src_data, src_linesizes1, pix_fmt,
+               width, height, image_copy_plane);
+}
+
+void av_image_copy_uc_from(uint8_t *dst_data[4], const ptrdiff_t dst_linesizes[4],
+                           const uint8_t *src_data[4], const ptrdiff_t src_linesizes[4],
+                           enum AVPixelFormat pix_fmt, int width, int height)
+{
+    image_copy(dst_data, dst_linesizes, src_data, src_linesizes, pix_fmt,
+               width, height, image_copy_plane_uc_from);
+}
+
+int av_image_fill_arrays(uint8_t *dst_data[4], int dst_linesize[4],
+                         const uint8_t *src, enum AVPixelFormat pix_fmt,
+                         int width, int height, int align)
+{
+    int ret, i;
+
+    ret = av_image_check_size(width, height, 0, NULL);
+    if (ret < 0)
+        return ret;
+
+    ret = av_image_fill_linesizes(dst_linesize, pix_fmt, width);
+    if (ret < 0)
+        return ret;
+
+    for (i = 0; i < 4; i++)
+        dst_linesize[i] = FFALIGN(dst_linesize[i], align);
+
+    return av_image_fill_pointers(dst_data, pix_fmt, height, (uint8_t *)src, dst_linesize);
+}
+
+int av_image_get_buffer_size(enum AVPixelFormat pix_fmt,
+                             int width, int height, int align)
+{
+    uint8_t *data[4];
+    int linesize[4];
+    int ret;
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    if (!desc)
+        return AVERROR(EINVAL);
+
+    ret = av_image_check_size(width, height, 0, NULL);
+    if (ret < 0)
+        return ret;
+
+    // do not include palette for these pseudo-paletted formats
+    if (desc->flags & FF_PSEUDOPAL)
+        return FFALIGN(width, align) * height;
+
+    return av_image_fill_arrays(data, linesize, NULL, pix_fmt,
+                                width, height, align);
+}
+
+int av_image_copy_to_buffer(uint8_t *dst, int dst_size,
+                            const uint8_t * const src_data[4],
+                            const int src_linesize[4],
+                            enum AVPixelFormat pix_fmt,
+                            int width, int height, int align)
+{
+    int i, j, nb_planes = 0, linesize[4];
+    int size = av_image_get_buffer_size(pix_fmt, width, height, align);
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    int ret;
+
+    if (size > dst_size || size < 0 || !desc)
+        return AVERROR(EINVAL);
+
+    for (i = 0; i < desc->nb_components; i++)
+        nb_planes = FFMAX(desc->comp[i].plane, nb_planes);
+
+    nb_planes++;
+
+    ret = av_image_fill_linesizes(linesize, pix_fmt, width);
+    av_assert0(ret >= 0); // was checked previously
+
+    for (i = 0; i < nb_planes; i++) {
+        int h, shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
+        const uint8_t *src = src_data[i];
+        h = (height + (1 << shift) - 1) >> shift;
+
+        for (j = 0; j < h; j++) {
+            memcpy(dst, src, linesize[i]);
+            dst += FFALIGN(linesize[i], align);
+            src += src_linesize[i];
+        }
+    }
+
+    if (desc->flags & AV_PIX_FMT_FLAG_PAL) {
+        uint32_t *d32 = (uint32_t *)dst;
+
+        for (i = 0; i<256; i++)
+            AV_WL32(d32 + i, AV_RN32(src_data[1] + 4*i));
+    }
+
+    return size;
+}
+
+// Fill dst[0..dst_size] with the bytes in clear[0..clear_size]. The clear
+// bytes are repeated until dst_size is reached. If dst_size is unaligned (i.e.
+// dst_size%clear_size!=0), the remaining data will be filled with the beginning
+// of the clear data only.
+static void memset_bytes(uint8_t *dst, size_t dst_size, uint8_t *clear,
+                         size_t clear_size)
+{
+    int same = 1;
+    int i;
+
+    if (!clear_size)
+        return;
+
+    // Reduce to memset() if possible.
+    for (i = 0; i < clear_size; i++) {
+        if (clear[i] != clear[0]) {
+            same = 0;
+            break;
+        }
+    }
+    if (same)
+        clear_size = 1;
+
+    if (clear_size == 1) {
+        memset(dst, clear[0], dst_size);
+        dst_size = 0;
+    } else {
+        if (clear_size > dst_size)
+            clear_size = dst_size;
+        memcpy(dst, clear, clear_size);
+        av_memcpy_backptr(dst + clear_size, clear_size, dst_size - clear_size);
+    }
+}
+
+// Maximum size in bytes of a plane element (usually a pixel, or multiple pixels
+// if it's a subsampled packed format).
+#define MAX_BLOCK_SIZE 32
+
+int av_image_fill_black(uint8_t *dst_data[4], const ptrdiff_t dst_linesize[4],
+                        enum AVPixelFormat pix_fmt, enum AVColorRange range,
+                        int width, int height)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    int nb_planes = av_pix_fmt_count_planes(pix_fmt);
+    // A pixel or a group of pixels on each plane, with a value that represents black.
+    // Consider e.g. AV_PIX_FMT_UYVY422 for non-trivial cases.
+    uint8_t clear_block[4][MAX_BLOCK_SIZE] = {{0}}; // clear padding with 0
+    int clear_block_size[4] = {0};
+    ptrdiff_t plane_line_bytes[4] = {0};
+    int rgb, limited;
+    int plane, c;
+
+    if (!desc || nb_planes < 1 || nb_planes > 4 || desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
+        return AVERROR(EINVAL);
+
+    rgb = !!(desc->flags & AV_PIX_FMT_FLAG_RGB);
+    limited = !rgb && range != AVCOL_RANGE_JPEG;
+
+    if (desc->flags & AV_PIX_FMT_FLAG_BITSTREAM) {
+        ptrdiff_t bytewidth = av_image_get_linesize(pix_fmt, width, 0);
+        uint8_t *data;
+        int mono = pix_fmt == AV_PIX_FMT_MONOWHITE || pix_fmt == AV_PIX_FMT_MONOBLACK;
+        int fill = pix_fmt == AV_PIX_FMT_MONOWHITE ? 0xFF : 0;
+        if (nb_planes != 1 || !(rgb || mono) || bytewidth < 1)
+            return AVERROR(EINVAL);
+
+        if (!dst_data)
+            return 0;
+
+        data = dst_data[0];
+
+        // (Bitstream + alpha will be handled incorrectly - it'll remain transparent.)
+        for (;height > 0; height--) {
+            memset(data, fill, bytewidth);
+            data += dst_linesize[0];
+        }
+        return 0;
+    }
+
+    for (c = 0; c < desc->nb_components; c++) {
+        const AVComponentDescriptor comp = desc->comp[c];
+
+        // We try to operate on entire non-subsampled pixel groups (for
+        // AV_PIX_FMT_UYVY422 this would mean two consecutive pixels).
+        clear_block_size[comp.plane] = FFMAX(clear_block_size[comp.plane], comp.step);
+
+        if (clear_block_size[comp.plane] > MAX_BLOCK_SIZE)
+            return AVERROR(EINVAL);
+    }
+
+    // Create a byte array for clearing 1 pixel (sometimes several pixels).
+    for (c = 0; c < desc->nb_components; c++) {
+        const AVComponentDescriptor comp = desc->comp[c];
+        // (Multiple pixels happen e.g. with AV_PIX_FMT_UYVY422.)
+        int w = clear_block_size[comp.plane] / comp.step;
+        uint8_t *c_data[4];
+        const int c_linesize[4] = {0};
+        uint16_t src_array[MAX_BLOCK_SIZE];
+        uint16_t src = 0;
+        int x;
+
+        if (comp.depth > 16)
+            return AVERROR(EINVAL);
+        if (!rgb && comp.depth < 8)
+            return AVERROR(EINVAL);
+        if (w < 1)
+            return AVERROR(EINVAL);
+
+        if (c == 0 && limited) {
+            src = 16 << (comp.depth - 8);
+        } else if ((c == 1 || c == 2) && !rgb) {
+            src = 128 << (comp.depth - 8);
+        } else if (c == 3) {
+            // (Assume even limited YUV uses full range alpha.)
+            src = (1 << comp.depth) - 1;
+        }
+
+        for (x = 0; x < w; x++)
+            src_array[x] = src;
+
+        for (x = 0; x < 4; x++)
+            c_data[x] = &clear_block[x][0];
+
+        av_write_image_line(src_array, c_data, c_linesize, desc, 0, 0, c, w);
+    }
+
+    for (plane = 0; plane < nb_planes; plane++) {
+        plane_line_bytes[plane] = av_image_get_linesize(pix_fmt, width, plane);
+        if (plane_line_bytes[plane] < 0)
+            return AVERROR(EINVAL);
+    }
+
+    if (!dst_data)
+        return 0;
+
+    for (plane = 0; plane < nb_planes; plane++) {
+        size_t bytewidth = plane_line_bytes[plane];
+        uint8_t *data = dst_data[plane];
+        int chroma_div = plane == 1 || plane == 2 ? desc->log2_chroma_h : 0;
+        int plane_h = ((height + ( 1 << chroma_div) - 1)) >> chroma_div;
+
+        for (; plane_h > 0; plane_h--) {
+            memset_bytes(data, bytewidth, &clear_block[plane][0], clear_block_size[plane]);
+            data += dst_linesize[plane];
+        }
+    }
+
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/imgutils.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/imgutils.h
new file mode 100644
index 000000000..5b790ecf0
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/imgutils.h
@@ -0,0 +1,277 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_IMGUTILS_H
+#define AVUTIL_IMGUTILS_H
+
+/**
+ * @file
+ * misc image utilities
+ *
+ * @addtogroup lavu_picture
+ * @{
+ */
+
+#include "avutil.h"
+#include "pixdesc.h"
+#include "rational.h"
+
+/**
+ * Compute the max pixel step for each plane of an image with a
+ * format described by pixdesc.
+ *
+ * The pixel step is the distance in bytes between the first byte of
+ * the group of bytes which describe a pixel component and the first
+ * byte of the successive group in the same plane for the same
+ * component.
+ *
+ * @param max_pixsteps an array which is filled with the max pixel step
+ * for each plane. Since a plane may contain different pixel
+ * components, the computed max_pixsteps[plane] is relative to the
+ * component in the plane with the max pixel step.
+ * @param max_pixstep_comps an array which is filled with the component
+ * for each plane which has the max pixel step. May be NULL.
+ */
+void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4],
+                                const AVPixFmtDescriptor *pixdesc);
+
+/**
+ * Compute the size of an image line with format pix_fmt and width
+ * width for the plane plane.
+ *
+ * @return the computed size in bytes
+ */
+int av_image_get_linesize(enum AVPixelFormat pix_fmt, int width, int plane);
+
+/**
+ * Fill plane linesizes for an image with pixel format pix_fmt and
+ * width width.
+ *
+ * @param linesizes array to be filled with the linesize for each plane
+ * @return >= 0 in case of success, a negative error code otherwise
+ */
+int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width);
+
+/**
+ * Fill plane data pointers for an image with pixel format pix_fmt and
+ * height height.
+ *
+ * @param data pointers array to be filled with the pointer for each image plane
+ * @param ptr the pointer to a buffer which will contain the image
+ * @param linesizes the array containing the linesize for each
+ * plane, should be filled by av_image_fill_linesizes()
+ * @return the size in bytes required for the image buffer, a negative
+ * error code in case of failure
+ */
+int av_image_fill_pointers(uint8_t *data[4], enum AVPixelFormat pix_fmt, int height,
+                           uint8_t *ptr, const int linesizes[4]);
+
+/**
+ * Allocate an image with size w and h and pixel format pix_fmt, and
+ * fill pointers and linesizes accordingly.
+ * The allocated image buffer has to be freed by using
+ * av_freep(&pointers[0]).
+ *
+ * @param align the value to use for buffer size alignment
+ * @return the size in bytes required for the image buffer, a negative
+ * error code in case of failure
+ */
+int av_image_alloc(uint8_t *pointers[4], int linesizes[4],
+                   int w, int h, enum AVPixelFormat pix_fmt, int align);
+
+/**
+ * Copy image plane from src to dst.
+ * That is, copy "height" number of lines of "bytewidth" bytes each.
+ * The first byte of each successive line is separated by *_linesize
+ * bytes.
+ *
+ * bytewidth must be contained by both absolute values of dst_linesize
+ * and src_linesize, otherwise the function behavior is undefined.
+ *
+ * @param dst_linesize linesize for the image plane in dst
+ * @param src_linesize linesize for the image plane in src
+ */
+void av_image_copy_plane(uint8_t       *dst, int dst_linesize,
+                         const uint8_t *src, int src_linesize,
+                         int bytewidth, int height);
+
+/**
+ * Copy image in src_data to dst_data.
+ *
+ * @param dst_linesizes linesizes for the image in dst_data
+ * @param src_linesizes linesizes for the image in src_data
+ */
+void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
+                   const uint8_t *src_data[4], const int src_linesizes[4],
+                   enum AVPixelFormat pix_fmt, int width, int height);
+
+/**
+ * Copy image data located in uncacheable (e.g. GPU mapped) memory. Where
+ * available, this function will use special functionality for reading from such
+ * memory, which may result in greatly improved performance compared to plain
+ * av_image_copy().
+ *
+ * The data pointers and the linesizes must be aligned to the maximum required
+ * by the CPU architecture.
+ *
+ * @note The linesize parameters have the type ptrdiff_t here, while they are
+ *       int for av_image_copy().
+ * @note On x86, the linesizes currently need to be aligned to the cacheline
+ *       size (i.e. 64) to get improved performance.
+ */
+void av_image_copy_uc_from(uint8_t *dst_data[4],       const ptrdiff_t dst_linesizes[4],
+                           const uint8_t *src_data[4], const ptrdiff_t src_linesizes[4],
+                           enum AVPixelFormat pix_fmt, int width, int height);
+
+/**
+ * Setup the data pointers and linesizes based on the specified image
+ * parameters and the provided array.
+ *
+ * The fields of the given image are filled in by using the src
+ * address which points to the image data buffer. Depending on the
+ * specified pixel format, one or multiple image data pointers and
+ * line sizes will be set.  If a planar format is specified, several
+ * pointers will be set pointing to the different picture planes and
+ * the line sizes of the different planes will be stored in the
+ * lines_sizes array. Call with src == NULL to get the required
+ * size for the src buffer.
+ *
+ * To allocate the buffer and fill in the dst_data and dst_linesize in
+ * one call, use av_image_alloc().
+ *
+ * @param dst_data      data pointers to be filled in
+ * @param dst_linesize  linesizes for the image in dst_data to be filled in
+ * @param src           buffer which will contain or contains the actual image data, can be NULL
+ * @param pix_fmt       the pixel format of the image
+ * @param width         the width of the image in pixels
+ * @param height        the height of the image in pixels
+ * @param align         the value used in src for linesize alignment
+ * @return the size in bytes required for src, a negative error code
+ * in case of failure
+ */
+int av_image_fill_arrays(uint8_t *dst_data[4], int dst_linesize[4],
+                         const uint8_t *src,
+                         enum AVPixelFormat pix_fmt, int width, int height, int align);
+
+/**
+ * Return the size in bytes of the amount of data required to store an
+ * image with the given parameters.
+ *
+ * @param pix_fmt  the pixel format of the image
+ * @param width    the width of the image in pixels
+ * @param height   the height of the image in pixels
+ * @param align    the assumed linesize alignment
+ * @return the buffer size in bytes, a negative error code in case of failure
+ */
+int av_image_get_buffer_size(enum AVPixelFormat pix_fmt, int width, int height, int align);
+
+/**
+ * Copy image data from an image into a buffer.
+ *
+ * av_image_get_buffer_size() can be used to compute the required size
+ * for the buffer to fill.
+ *
+ * @param dst           a buffer into which picture data will be copied
+ * @param dst_size      the size in bytes of dst
+ * @param src_data      pointers containing the source image data
+ * @param src_linesize  linesizes for the image in src_data
+ * @param pix_fmt       the pixel format of the source image
+ * @param width         the width of the source image in pixels
+ * @param height        the height of the source image in pixels
+ * @param align         the assumed linesize alignment for dst
+ * @return the number of bytes written to dst, or a negative value
+ * (error code) on error
+ */
+int av_image_copy_to_buffer(uint8_t *dst, int dst_size,
+                            const uint8_t * const src_data[4], const int src_linesize[4],
+                            enum AVPixelFormat pix_fmt, int width, int height, int align);
+
+/**
+ * Check if the given dimension of an image is valid, meaning that all
+ * bytes of the image can be addressed with a signed int.
+ *
+ * @param w the width of the picture
+ * @param h the height of the picture
+ * @param log_offset the offset to sum to the log level for logging with log_ctx
+ * @param log_ctx the parent logging context, it may be NULL
+ * @return >= 0 if valid, a negative error code otherwise
+ */
+int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx);
+
+/**
+ * Check if the given dimension of an image is valid, meaning that all
+ * bytes of a plane of an image with the specified pix_fmt can be addressed
+ * with a signed int.
+ *
+ * @param w the width of the picture
+ * @param h the height of the picture
+ * @param max_pixels the maximum number of pixels the user wants to accept
+ * @param pix_fmt the pixel format, can be AV_PIX_FMT_NONE if unknown.
+ * @param log_offset the offset to sum to the log level for logging with log_ctx
+ * @param log_ctx the parent logging context, it may be NULL
+ * @return >= 0 if valid, a negative error code otherwise
+ */
+int av_image_check_size2(unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx);
+
+/**
+ * Check if the given sample aspect ratio of an image is valid.
+ *
+ * It is considered invalid if the denominator is 0 or if applying the ratio
+ * to the image size would make the smaller dimension less than 1. If the
+ * sar numerator is 0, it is considered unknown and will return as valid.
+ *
+ * @param w width of the image
+ * @param h height of the image
+ * @param sar sample aspect ratio of the image
+ * @return 0 if valid, a negative AVERROR code otherwise
+ */
+int av_image_check_sar(unsigned int w, unsigned int h, AVRational sar);
+
+/**
+ * Overwrite the image data with black. This is suitable for filling a
+ * sub-rectangle of an image, meaning the padding between the right most pixel
+ * and the left most pixel on the next line will not be overwritten. For some
+ * formats, the image size might be rounded up due to inherent alignment.
+ *
+ * If the pixel format has alpha, the alpha is cleared to opaque.
+ *
+ * This can return an error if the pixel format is not supported. Normally, all
+ * non-hwaccel pixel formats should be supported.
+ *
+ * Passing NULL for dst_data is allowed. Then the function returns whether the
+ * operation would have succeeded. (It can return an error if the pix_fmt is
+ * not supported.)
+ *
+ * @param dst_data      data pointers to destination image
+ * @param dst_linesize  linesizes for the destination image
+ * @param pix_fmt       the pixel format of the image
+ * @param range         the color range of the image (important for colorspaces such as YUV)
+ * @param width         the width of the image in pixels
+ * @param height        the height of the image in pixels
+ * @return 0 if the image data was cleared, a negative AVERROR code otherwise
+ */
+int av_image_fill_black(uint8_t *dst_data[4], const ptrdiff_t dst_linesize[4],
+                        enum AVPixelFormat pix_fmt, enum AVColorRange range,
+                        int width, int height);
+
+/**
+ * @}
+ */
+
+
+#endif /* AVUTIL_IMGUTILS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/imgutils_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/imgutils_internal.h
new file mode 100644
index 000000000..d51585841
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/imgutils_internal.h
@@ -0,0 +1,30 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_IMGUTILS_INTERNAL_H
+#define AVUTIL_IMGUTILS_INTERNAL_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+int ff_image_copy_plane_uc_from_x86(uint8_t       *dst, ptrdiff_t dst_linesize,
+                                    const uint8_t *src, ptrdiff_t src_linesize,
+                                    ptrdiff_t bytewidth, int height);
+
+
+#endif /* AVUTIL_IMGUTILS_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/integer.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/integer.c
new file mode 100644
index 000000000..78e252fbd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/integer.c
@@ -0,0 +1,166 @@
+/*
+ * arbitrary precision integers
+ * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * arbitrary precision integers
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "common.h"
+#include "integer.h"
+#include "avassert.h"
+
+static const AVInteger zero_i;
+
+AVInteger av_add_i(AVInteger a, AVInteger b){
+    int i, carry=0;
+
+    for(i=0; i<AV_INTEGER_SIZE; i++){
+        carry= (carry>>16) + a.v[i] + b.v[i];
+        a.v[i]= carry;
+    }
+    return a;
+}
+
+AVInteger av_sub_i(AVInteger a, AVInteger b){
+    int i, carry=0;
+
+    for(i=0; i<AV_INTEGER_SIZE; i++){
+        carry= (carry>>16) + a.v[i] - b.v[i];
+        a.v[i]= carry;
+    }
+    return a;
+}
+
+int av_log2_i(AVInteger a){
+    int i;
+
+    for(i=AV_INTEGER_SIZE-1; i>=0; i--){
+        if(a.v[i])
+            return av_log2_16bit(a.v[i]) + 16*i;
+    }
+    return -1;
+}
+
+AVInteger av_mul_i(AVInteger a, AVInteger b){
+    AVInteger out;
+    int i, j;
+    int na= (av_log2_i(a)+16) >> 4;
+    int nb= (av_log2_i(b)+16) >> 4;
+
+    memset(&out, 0, sizeof(out));
+
+    for(i=0; i<na; i++){
+        unsigned int carry=0;
+
+        if(a.v[i])
+            for(j=i; j<AV_INTEGER_SIZE && j-i<=nb; j++){
+                carry= (carry>>16) + out.v[j] + a.v[i]*(unsigned)b.v[j-i];
+                out.v[j]= carry;
+            }
+    }
+
+    return out;
+}
+
+int av_cmp_i(AVInteger a, AVInteger b){
+    int i;
+    int v= (int16_t)a.v[AV_INTEGER_SIZE-1] - (int16_t)b.v[AV_INTEGER_SIZE-1];
+    if(v) return (v>>16)|1;
+
+    for(i=AV_INTEGER_SIZE-2; i>=0; i--){
+        int v= a.v[i] - b.v[i];
+        if(v) return (v>>16)|1;
+    }
+    return 0;
+}
+
+AVInteger av_shr_i(AVInteger a, int s){
+    AVInteger out;
+    int i;
+
+    for(i=0; i<AV_INTEGER_SIZE; i++){
+        unsigned int index= i + (s>>4);
+        unsigned int v=0;
+        if(index+1<AV_INTEGER_SIZE) v = a.v[index+1]<<16;
+        if(index  <AV_INTEGER_SIZE) v+= a.v[index  ];
+        out.v[i]= v >> (s&15);
+    }
+    return out;
+}
+
+AVInteger av_mod_i(AVInteger *quot, AVInteger a, AVInteger b){
+    int i= av_log2_i(a) - av_log2_i(b);
+    AVInteger quot_temp;
+    if(!quot) quot = &quot_temp;
+
+    if ((int16_t)a.v[AV_INTEGER_SIZE-1] < 0) {
+        a = av_mod_i(quot, av_sub_i(zero_i, a), b);
+        *quot = av_sub_i(zero_i, *quot);
+        return av_sub_i(zero_i, a);
+    }
+
+    av_assert2((int16_t)a.v[AV_INTEGER_SIZE-1] >= 0 && (int16_t)b.v[AV_INTEGER_SIZE-1] >= 0);
+    av_assert2(av_log2_i(b)>=0);
+
+    if(i > 0)
+        b= av_shr_i(b, -i);
+
+    memset(quot, 0, sizeof(AVInteger));
+
+    while(i-- >= 0){
+        *quot= av_shr_i(*quot, -1);
+        if(av_cmp_i(a, b) >= 0){
+            a= av_sub_i(a, b);
+            quot->v[0] += 1;
+        }
+        b= av_shr_i(b, 1);
+    }
+    return a;
+}
+
+AVInteger av_div_i(AVInteger a, AVInteger b){
+    AVInteger quot;
+    av_mod_i(&quot, a, b);
+    return quot;
+}
+
+AVInteger av_int2i(int64_t a){
+    AVInteger out;
+    int i;
+
+    for(i=0; i<AV_INTEGER_SIZE; i++){
+        out.v[i]= a;
+        a>>=16;
+    }
+    return out;
+}
+
+int64_t av_i2int(AVInteger a){
+    int i;
+    int64_t out=(int8_t)a.v[AV_INTEGER_SIZE-1];
+
+    for(i= AV_INTEGER_SIZE-2; i>=0; i--){
+        out = (out<<16) + a.v[i];
+    }
+    return out;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/integer.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/integer.h
new file mode 100644
index 000000000..45f733c04
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/integer.h
@@ -0,0 +1,86 @@
+/*
+ * arbitrary precision integers
+ * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * arbitrary precision integers
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#ifndef AVUTIL_INTEGER_H
+#define AVUTIL_INTEGER_H
+
+#include <stdint.h>
+#include "common.h"
+
+#define AV_INTEGER_SIZE 8
+
+typedef struct AVInteger{
+    uint16_t v[AV_INTEGER_SIZE];
+} AVInteger;
+
+AVInteger av_add_i(AVInteger a, AVInteger b) av_const;
+AVInteger av_sub_i(AVInteger a, AVInteger b) av_const;
+
+/**
+ * Return the rounded-down value of the base 2 logarithm of the given
+ * AVInteger. This is simply the index of the most significant bit
+ * which is 1, or 0 if all bits are 0.
+ */
+int av_log2_i(AVInteger a) av_const;
+AVInteger av_mul_i(AVInteger a, AVInteger b) av_const;
+
+/**
+ * Return 0 if a==b, 1 if a>b and -1 if a<b.
+ */
+int av_cmp_i(AVInteger a, AVInteger b) av_const;
+
+/**
+ * bitwise shift
+ * @param s the number of bits by which the value should be shifted right,
+            may be negative for shifting left
+ */
+AVInteger av_shr_i(AVInteger a, int s) av_const;
+
+/**
+ * Return a % b.
+ * @param quot a/b will be stored here.
+ */
+AVInteger av_mod_i(AVInteger *quot, AVInteger a, AVInteger b);
+
+/**
+ * Return a/b.
+ */
+AVInteger av_div_i(AVInteger a, AVInteger b) av_const;
+
+/**
+ * Convert the given int64_t to an AVInteger.
+ */
+AVInteger av_int2i(int64_t a) av_const;
+
+/**
+ * Convert the given AVInteger to an int64_t.
+ * If the AVInteger is too large to fit into an int64_t,
+ * then only the least significant 64 bits will be used.
+ */
+int64_t av_i2int(AVInteger a) av_const;
+
+#endif /* AVUTIL_INTEGER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/internal.h
new file mode 100644
index 000000000..4acbcf56c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/internal.h
@@ -0,0 +1,372 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * common internal API header
+ */
+
+#ifndef AVUTIL_INTERNAL_H
+#define AVUTIL_INTERNAL_H
+
+#if !defined(DEBUG) && !defined(NDEBUG)
+#    define NDEBUG
+#endif
+
+// This can be enabled to allow detection of additional integer overflows with ubsan
+//#define CHECKED
+
+#include <limits.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <assert.h>
+#include "config.h"
+#include "attributes.h"
+#include "timer.h"
+#include "cpu.h"
+#include "dict.h"
+#include "macros.h"
+#include "mem.h"
+#include "pixfmt.h"
+#include "version.h"
+
+#if ARCH_X86
+#   include "x86/emms.h"
+#endif
+
+#ifndef emms_c
+#   define emms_c() do {} while(0)
+#endif
+
+#ifndef attribute_align_arg
+#if ARCH_X86_32 && AV_GCC_VERSION_AT_LEAST(4,2)
+#    define attribute_align_arg __attribute__((force_align_arg_pointer))
+#else
+#    define attribute_align_arg
+#endif
+#endif
+
+#if defined(_WIN32) && CONFIG_SHARED && !defined(BUILDING_avutil)
+#    define av_export_avutil __declspec(dllimport)
+#else
+#    define av_export_avutil
+#endif
+
+#if HAVE_PRAGMA_DEPRECATED
+#    if defined(__ICL) || defined (__INTEL_COMPILER)
+#        define FF_DISABLE_DEPRECATION_WARNINGS __pragma(warning(push)) __pragma(warning(disable:1478))
+#        define FF_ENABLE_DEPRECATION_WARNINGS  __pragma(warning(pop))
+#    elif defined(_MSC_VER)
+#        define FF_DISABLE_DEPRECATION_WARNINGS __pragma(warning(push)) __pragma(warning(disable:4996))
+#        define FF_ENABLE_DEPRECATION_WARNINGS  __pragma(warning(pop))
+#    else
+#        define FF_DISABLE_DEPRECATION_WARNINGS _Pragma("GCC diagnostic push") _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
+#        define FF_ENABLE_DEPRECATION_WARNINGS  _Pragma("GCC diagnostic pop")
+#    endif
+#else
+#    define FF_DISABLE_DEPRECATION_WARNINGS
+#    define FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+
+#define FF_MEMORY_POISON 0x2a
+
+#define MAKE_ACCESSORS(str, name, type, field) \
+    type av_##name##_get_##field(const str *s) { return s->field; } \
+    void av_##name##_set_##field(str *s, type v) { s->field = v; }
+
+// Some broken preprocessors need a second expansion
+// to be forced to tokenize __VA_ARGS__
+#define E1(x) x
+
+/* Check if the hard coded offset of a struct member still matches reality.
+ * Induce a compilation failure if not.
+ */
+#define AV_CHECK_OFFSET(s, m, o) struct check_##o {    \
+        int x_##o[offsetof(s, m) == o? 1: -1];         \
+    }
+
+#define LOCAL_ALIGNED_A(a, t, v, s, o, ...)             \
+    uint8_t la_##v[sizeof(t s o) + (a)];                \
+    t (*v) o = (void *)FFALIGN((uintptr_t)la_##v, a)
+
+#define LOCAL_ALIGNED_D(a, t, v, s, o, ...)             \
+    DECLARE_ALIGNED(a, t, la_##v) s o;                  \
+    t (*v) o = la_##v
+
+#define LOCAL_ALIGNED(a, t, v, ...) LOCAL_ALIGNED_##a(t, v, __VA_ARGS__)
+
+#if HAVE_LOCAL_ALIGNED
+#   define LOCAL_ALIGNED_4(t, v, ...) E1(LOCAL_ALIGNED_D(4, t, v, __VA_ARGS__,,))
+#else
+#   define LOCAL_ALIGNED_4(t, v, ...) E1(LOCAL_ALIGNED_A(4, t, v, __VA_ARGS__,,))
+#endif
+
+#if HAVE_LOCAL_ALIGNED
+#   define LOCAL_ALIGNED_8(t, v, ...) E1(LOCAL_ALIGNED_D(8, t, v, __VA_ARGS__,,))
+#else
+#   define LOCAL_ALIGNED_8(t, v, ...) E1(LOCAL_ALIGNED_A(8, t, v, __VA_ARGS__,,))
+#endif
+
+#if HAVE_LOCAL_ALIGNED
+#   define LOCAL_ALIGNED_16(t, v, ...) E1(LOCAL_ALIGNED_D(16, t, v, __VA_ARGS__,,))
+#else
+#   define LOCAL_ALIGNED_16(t, v, ...) E1(LOCAL_ALIGNED_A(16, t, v, __VA_ARGS__,,))
+#endif
+
+#if HAVE_LOCAL_ALIGNED
+#   define LOCAL_ALIGNED_32(t, v, ...) E1(LOCAL_ALIGNED_D(32, t, v, __VA_ARGS__,,))
+#else
+#   define LOCAL_ALIGNED_32(t, v, ...) E1(LOCAL_ALIGNED_A(32, t, v, __VA_ARGS__,,))
+#endif
+
+#define FF_ALLOC_OR_GOTO(ctx, p, size, label)\
+{\
+    p = av_malloc(size);\
+    if (!(p) && (size) != 0) {\
+        av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
+        goto label;\
+    }\
+}
+
+#define FF_ALLOCZ_OR_GOTO(ctx, p, size, label)\
+{\
+    p = av_mallocz(size);\
+    if (!(p) && (size) != 0) {\
+        av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
+        goto label;\
+    }\
+}
+
+#define FF_ALLOC_ARRAY_OR_GOTO(ctx, p, nelem, elsize, label)\
+{\
+    p = av_malloc_array(nelem, elsize);\
+    if (!p) {\
+        av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
+        goto label;\
+    }\
+}
+
+#define FF_ALLOCZ_ARRAY_OR_GOTO(ctx, p, nelem, elsize, label)\
+{\
+    p = av_mallocz_array(nelem, elsize);\
+    if (!p) {\
+        av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
+        goto label;\
+    }\
+}
+
+#include "libm.h"
+
+/**
+ * Return NULL if CONFIG_SMALL is true, otherwise the argument
+ * without modification. Used to disable the definition of strings
+ * (for example AVCodec long_names).
+ */
+#if CONFIG_SMALL
+#   define NULL_IF_CONFIG_SMALL(x) NULL
+#else
+#   define NULL_IF_CONFIG_SMALL(x) x
+#endif
+
+/**
+ * Define a function with only the non-default version specified.
+ *
+ * On systems with ELF shared libraries, all symbols exported from
+ * FFmpeg libraries are tagged with the name and major version of the
+ * library to which they belong.  If a function is moved from one
+ * library to another, a wrapper must be retained in the original
+ * location to preserve binary compatibility.
+ *
+ * Functions defined with this macro will never be used to resolve
+ * symbols by the build-time linker.
+ *
+ * @param type return type of function
+ * @param name name of function
+ * @param args argument list of function
+ * @param ver  version tag to assign function
+ */
+#if HAVE_SYMVER_ASM_LABEL
+#   define FF_SYMVER(type, name, args, ver)                     \
+    type ff_##name args __asm__ (EXTERN_PREFIX #name "@" ver);  \
+    type ff_##name args
+#elif HAVE_SYMVER_GNU_ASM
+#   define FF_SYMVER(type, name, args, ver)                             \
+    __asm__ (".symver ff_" #name "," EXTERN_PREFIX #name "@" ver);      \
+    type ff_##name args;                                                \
+    type ff_##name args
+#endif
+
+/**
+ * Return NULL if a threading library has not been enabled.
+ * Used to disable threading functions in AVCodec definitions
+ * when not needed.
+ */
+#if HAVE_THREADS
+#   define ONLY_IF_THREADS_ENABLED(x) x
+#else
+#   define ONLY_IF_THREADS_ENABLED(x) NULL
+#endif
+
+/**
+ * Log a generic warning message about a missing feature.
+ *
+ * @param[in] avc a pointer to an arbitrary struct of which the first
+ *                field is a pointer to an AVClass struct
+ * @param[in] msg string containing the name of the missing feature
+ */
+void avpriv_report_missing_feature(void *avc,
+                                   const char *msg, ...) av_printf_format(2, 3);
+
+/**
+ * Log a generic warning message about a missing feature.
+ * Additionally request that a sample showcasing the feature be uploaded.
+ *
+ * @param[in] avc a pointer to an arbitrary struct of which the first field is
+ *                a pointer to an AVClass struct
+ * @param[in] msg string containing the name of the missing feature
+ */
+void avpriv_request_sample(void *avc,
+                           const char *msg, ...) av_printf_format(2, 3);
+
+#if HAVE_LIBC_MSVCRT
+#include <crtversion.h>
+#if defined(_VC_CRT_MAJOR_VERSION) && _VC_CRT_MAJOR_VERSION < 14
+#pragma comment(linker, "/include:" EXTERN_PREFIX "avpriv_strtod")
+#pragma comment(linker, "/include:" EXTERN_PREFIX "avpriv_snprintf")
+#endif
+
+#define avpriv_open ff_open
+#define avpriv_tempfile ff_tempfile
+#define PTRDIFF_SPECIFIER "Id"
+#define SIZE_SPECIFIER "Iu"
+#else
+#define PTRDIFF_SPECIFIER "td"
+#define SIZE_SPECIFIER "zu"
+#endif
+
+#ifdef DEBUG
+#   define ff_dlog(ctx, ...) av_log(ctx, AV_LOG_DEBUG, __VA_ARGS__)
+#else
+#   define ff_dlog(ctx, ...) do { if (0) av_log(ctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0)
+#endif
+
+// For debuging we use signed operations so overflows can be detected (by ubsan)
+// For production we use unsigned so there are no undefined operations
+#ifdef CHECKED
+#define SUINT   int
+#define SUINT32 int32_t
+#else
+#define SUINT   unsigned
+#define SUINT32 uint32_t
+#endif
+
+/**
+ * Clip and convert a double value into the long long amin-amax range.
+ * This function is needed because conversion of floating point to integers when
+ * it does not fit in the integer's representation does not necessarily saturate
+ * correctly (usually converted to a cvttsd2si on x86) which saturates numbers
+ * > INT64_MAX to INT64_MIN. The standard marks such conversions as undefined
+ * behavior, allowing this sort of mathematically bogus conversions. This provides
+ * a safe alternative that is slower obviously but assures safety and better
+ * mathematical behavior.
+ * @param a value to clip
+ * @param amin minimum value of the clip range
+ * @param amax maximum value of the clip range
+ * @return clipped value
+ */
+static av_always_inline av_const int64_t ff_rint64_clip(double a, int64_t amin, int64_t amax)
+{
+    int64_t res;
+#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+    if (amin > amax) abort();
+#endif
+    // INT64_MAX+1,INT64_MIN are exactly representable as IEEE doubles
+    // do range checks first
+    if (a >=  9223372036854775808.0)
+        return amax;
+    if (a <= -9223372036854775808.0)
+        return amin;
+
+    // safe to call llrint and clip accordingly
+    res = llrint(a);
+    if (res > amax)
+        return amax;
+    if (res < amin)
+        return amin;
+    return res;
+}
+
+/**
+ * A wrapper for open() setting O_CLOEXEC.
+ */
+av_warn_unused_result
+int avpriv_open(const char *filename, int flags, ...);
+
+/**
+ * Wrapper to work around the lack of mkstemp() on mingw.
+ * Also, tries to create file in /tmp first, if possible.
+ * *prefix can be a character constant; *filename will be allocated internally.
+ * @return file descriptor of opened file (or negative value corresponding to an
+ * AVERROR code on error)
+ * and opened file name in **filename.
+ * @note On very old libcs it is necessary to set a secure umask before
+ *       calling this, av_tempfile() can't call umask itself as it is used in
+ *       libraries and could interfere with the calling application.
+ */
+int avpriv_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx);
+
+int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt);
+
+static av_always_inline av_const int avpriv_mirror(int x, int w)
+{
+    if (!w)
+        return 0;
+
+    while ((unsigned)x > (unsigned)w) {
+        x = -x;
+        if (x < 0)
+            x += 2 * w;
+    }
+    return x;
+}
+
+void ff_check_pixfmt_descriptors(void);
+
+/**
+ * Set a dictionary value to an ISO-8601 compliant timestamp string.
+ *
+ * @param s AVFormatContext
+ * @param key metadata key
+ * @param timestamp unix timestamp in microseconds
+ * @return <0 on error
+ */
+int avpriv_dict_set_timestamp(AVDictionary **dict, const char *key, int64_t timestamp);
+
+// Helper macro for AV_PIX_FMT_FLAG_PSEUDOPAL deprecation. Code inside FFmpeg
+// should always use FF_PSEUDOPAL. Once the public API flag gets removed, all
+// code using it is dead code.
+#if FF_API_PSEUDOPAL
+#define FF_PSEUDOPAL AV_PIX_FMT_FLAG_PSEUDOPAL
+#else
+#define FF_PSEUDOPAL 0
+#endif
+
+#endif /* AVUTIL_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/intfloat.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/intfloat.h
new file mode 100644
index 000000000..fe3d7ec4a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/intfloat.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2011 Mans Rullgard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_INTFLOAT_H
+#define AVUTIL_INTFLOAT_H
+
+#include <stdint.h>
+#include "attributes.h"
+
+union av_intfloat32 {
+    uint32_t i;
+    float    f;
+};
+
+union av_intfloat64 {
+    uint64_t i;
+    double   f;
+};
+
+/**
+ * Reinterpret a 32-bit integer as a float.
+ */
+static av_always_inline float av_int2float(uint32_t i)
+{
+    union av_intfloat32 v;
+    v.i = i;
+    return v.f;
+}
+
+/**
+ * Reinterpret a float as a 32-bit integer.
+ */
+static av_always_inline uint32_t av_float2int(float f)
+{
+    union av_intfloat32 v;
+    v.f = f;
+    return v.i;
+}
+
+/**
+ * Reinterpret a 64-bit integer as a double.
+ */
+static av_always_inline double av_int2double(uint64_t i)
+{
+    union av_intfloat64 v;
+    v.i = i;
+    return v.f;
+}
+
+/**
+ * Reinterpret a double as a 64-bit integer.
+ */
+static av_always_inline uint64_t av_double2int(double f)
+{
+    union av_intfloat64 v;
+    v.f = f;
+    return v.i;
+}
+
+#endif /* AVUTIL_INTFLOAT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/intmath.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/intmath.c
new file mode 100644
index 000000000..b0c00e1ca
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/intmath.c
@@ -0,0 +1,34 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "intmath.h"
+
+/* undef these to get the function prototypes from common.h */
+#undef av_log2
+#undef av_log2_16bit
+#include "common.h"
+
+int av_log2(unsigned v)
+{
+    return ff_log2(v);
+}
+
+int av_log2_16bit(unsigned v)
+{
+    return ff_log2_16bit(v);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/intmath.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/intmath.h
new file mode 100644
index 000000000..9573109e9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/intmath.h
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_INTMATH_H
+#define AVUTIL_INTMATH_H
+
+#include <stdint.h>
+
+#include "config.h"
+#include "attributes.h"
+
+#if ARCH_ARM
+#   include "arm/intmath.h"
+#endif
+#if ARCH_X86
+#   include "x86/intmath.h"
+#endif
+
+#if HAVE_FAST_CLZ
+#if AV_GCC_VERSION_AT_LEAST(3,4)
+#ifndef ff_log2
+#   define ff_log2(x) (31 - __builtin_clz((x)|1))
+#   ifndef ff_log2_16bit
+#      define ff_log2_16bit av_log2
+#   endif
+#endif /* ff_log2 */
+#endif /* AV_GCC_VERSION_AT_LEAST(3,4) */
+#endif
+
+extern const uint8_t ff_log2_tab[256];
+
+#ifndef ff_log2
+#define ff_log2 ff_log2_c
+static av_always_inline av_const int ff_log2_c(unsigned int v)
+{
+    int n = 0;
+    if (v & 0xffff0000) {
+        v >>= 16;
+        n += 16;
+    }
+    if (v & 0xff00) {
+        v >>= 8;
+        n += 8;
+    }
+    n += ff_log2_tab[v];
+
+    return n;
+}
+#endif
+
+#ifndef ff_log2_16bit
+#define ff_log2_16bit ff_log2_16bit_c
+static av_always_inline av_const int ff_log2_16bit_c(unsigned int v)
+{
+    int n = 0;
+    if (v & 0xff00) {
+        v >>= 8;
+        n += 8;
+    }
+    n += ff_log2_tab[v];
+
+    return n;
+}
+#endif
+
+#define av_log2       ff_log2
+#define av_log2_16bit ff_log2_16bit
+
+/**
+ * @addtogroup lavu_math
+ * @{
+ */
+
+#if HAVE_FAST_CLZ
+#if AV_GCC_VERSION_AT_LEAST(3,4)
+#ifndef ff_ctz
+#define ff_ctz(v) __builtin_ctz(v)
+#endif
+#ifndef ff_ctzll
+#define ff_ctzll(v) __builtin_ctzll(v)
+#endif
+#ifndef ff_clz
+#define ff_clz(v) __builtin_clz(v)
+#endif
+#endif
+#endif
+
+#ifndef ff_ctz
+#define ff_ctz ff_ctz_c
+/**
+ * Trailing zero bit count.
+ *
+ * @param v  input value. If v is 0, the result is undefined.
+ * @return   the number of trailing 0-bits
+ */
+/* We use the De-Bruijn method outlined in:
+ * http://supertech.csail.mit.edu/papers/debruijn.pdf. */
+static av_always_inline av_const int ff_ctz_c(int v)
+{
+    static const uint8_t debruijn_ctz32[32] = {
+        0, 1, 28, 2, 29, 14, 24, 3, 30, 22, 20, 15, 25, 17, 4, 8,
+        31, 27, 13, 23, 21, 19, 16, 7, 26, 12, 18, 6, 11, 5, 10, 9
+    };
+    return debruijn_ctz32[(uint32_t)((v & -v) * 0x077CB531U) >> 27];
+}
+#endif
+
+#ifndef ff_ctzll
+#define ff_ctzll ff_ctzll_c
+/* We use the De-Bruijn method outlined in:
+ * http://supertech.csail.mit.edu/papers/debruijn.pdf. */
+static av_always_inline av_const int ff_ctzll_c(long long v)
+{
+    static const uint8_t debruijn_ctz64[64] = {
+        0, 1, 2, 53, 3, 7, 54, 27, 4, 38, 41, 8, 34, 55, 48, 28,
+        62, 5, 39, 46, 44, 42, 22, 9, 24, 35, 59, 56, 49, 18, 29, 11,
+        63, 52, 6, 26, 37, 40, 33, 47, 61, 45, 43, 21, 23, 58, 17, 10,
+        51, 25, 36, 32, 60, 20, 57, 16, 50, 31, 19, 15, 30, 14, 13, 12
+    };
+    return debruijn_ctz64[(uint64_t)((v & -v) * 0x022FDD63CC95386DU) >> 58];
+}
+#endif
+
+#ifndef ff_clz
+#define ff_clz ff_clz_c
+static av_always_inline av_const unsigned ff_clz_c(unsigned x)
+{
+    unsigned i = sizeof(x) * 8;
+
+    while (x) {
+        x >>= 1;
+        i--;
+    }
+
+    return i;
+}
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(3,4)
+#ifndef av_parity
+#define av_parity __builtin_parity
+#endif
+#endif
+
+/**
+ * @}
+ */
+#endif /* AVUTIL_INTMATH_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/intreadwrite.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/intreadwrite.h
new file mode 100644
index 000000000..4c8413a53
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/intreadwrite.h
@@ -0,0 +1,644 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_INTREADWRITE_H
+#define AVUTIL_INTREADWRITE_H
+
+#include <stdint.h>
+#include "libavutil/avconfig.h"
+#include "attributes.h"
+#include "bswap.h"
+
+typedef union {
+    uint64_t u64;
+    uint32_t u32[2];
+    uint16_t u16[4];
+    uint8_t  u8 [8];
+    double   f64;
+    float    f32[2];
+} av_alias av_alias64;
+
+typedef union {
+    uint32_t u32;
+    uint16_t u16[2];
+    uint8_t  u8 [4];
+    float    f32;
+} av_alias av_alias32;
+
+typedef union {
+    uint16_t u16;
+    uint8_t  u8 [2];
+} av_alias av_alias16;
+
+/*
+ * Arch-specific headers can provide any combination of
+ * AV_[RW][BLN](16|24|32|48|64) and AV_(COPY|SWAP|ZERO)(64|128) macros.
+ * Preprocessor symbols must be defined, even if these are implemented
+ * as inline functions.
+ *
+ * R/W means read/write, B/L/N means big/little/native endianness.
+ * The following macros require aligned access, compared to their
+ * unaligned variants: AV_(COPY|SWAP|ZERO)(64|128), AV_[RW]N[8-64]A.
+ * Incorrect usage may range from abysmal performance to crash
+ * depending on the platform.
+ *
+ * The unaligned variants are AV_[RW][BLN][8-64] and AV_COPY*U.
+ */
+
+#ifdef HAVE_AV_CONFIG_H
+
+#include "config.h"
+
+#if   ARCH_ARM
+#   include "arm/intreadwrite.h"
+#elif ARCH_AVR32
+#   include "avr32/intreadwrite.h"
+#elif ARCH_MIPS
+#   include "mips/intreadwrite.h"
+#elif ARCH_PPC
+#   include "ppc/intreadwrite.h"
+#elif ARCH_TOMI
+#   include "tomi/intreadwrite.h"
+#elif ARCH_X86
+#   include "x86/intreadwrite.h"
+#endif
+
+#endif /* HAVE_AV_CONFIG_H */
+
+/*
+ * Map AV_RNXX <-> AV_R[BL]XX for all variants provided by per-arch headers.
+ */
+
+#if AV_HAVE_BIGENDIAN
+
+#   if    defined(AV_RN16) && !defined(AV_RB16)
+#       define AV_RB16(p) AV_RN16(p)
+#   elif !defined(AV_RN16) &&  defined(AV_RB16)
+#       define AV_RN16(p) AV_RB16(p)
+#   endif
+
+#   if    defined(AV_WN16) && !defined(AV_WB16)
+#       define AV_WB16(p, v) AV_WN16(p, v)
+#   elif !defined(AV_WN16) &&  defined(AV_WB16)
+#       define AV_WN16(p, v) AV_WB16(p, v)
+#   endif
+
+#   if    defined(AV_RN24) && !defined(AV_RB24)
+#       define AV_RB24(p) AV_RN24(p)
+#   elif !defined(AV_RN24) &&  defined(AV_RB24)
+#       define AV_RN24(p) AV_RB24(p)
+#   endif
+
+#   if    defined(AV_WN24) && !defined(AV_WB24)
+#       define AV_WB24(p, v) AV_WN24(p, v)
+#   elif !defined(AV_WN24) &&  defined(AV_WB24)
+#       define AV_WN24(p, v) AV_WB24(p, v)
+#   endif
+
+#   if    defined(AV_RN32) && !defined(AV_RB32)
+#       define AV_RB32(p) AV_RN32(p)
+#   elif !defined(AV_RN32) &&  defined(AV_RB32)
+#       define AV_RN32(p) AV_RB32(p)
+#   endif
+
+#   if    defined(AV_WN32) && !defined(AV_WB32)
+#       define AV_WB32(p, v) AV_WN32(p, v)
+#   elif !defined(AV_WN32) &&  defined(AV_WB32)
+#       define AV_WN32(p, v) AV_WB32(p, v)
+#   endif
+
+#   if    defined(AV_RN48) && !defined(AV_RB48)
+#       define AV_RB48(p) AV_RN48(p)
+#   elif !defined(AV_RN48) &&  defined(AV_RB48)
+#       define AV_RN48(p) AV_RB48(p)
+#   endif
+
+#   if    defined(AV_WN48) && !defined(AV_WB48)
+#       define AV_WB48(p, v) AV_WN48(p, v)
+#   elif !defined(AV_WN48) &&  defined(AV_WB48)
+#       define AV_WN48(p, v) AV_WB48(p, v)
+#   endif
+
+#   if    defined(AV_RN64) && !defined(AV_RB64)
+#       define AV_RB64(p) AV_RN64(p)
+#   elif !defined(AV_RN64) &&  defined(AV_RB64)
+#       define AV_RN64(p) AV_RB64(p)
+#   endif
+
+#   if    defined(AV_WN64) && !defined(AV_WB64)
+#       define AV_WB64(p, v) AV_WN64(p, v)
+#   elif !defined(AV_WN64) &&  defined(AV_WB64)
+#       define AV_WN64(p, v) AV_WB64(p, v)
+#   endif
+
+#else /* AV_HAVE_BIGENDIAN */
+
+#   if    defined(AV_RN16) && !defined(AV_RL16)
+#       define AV_RL16(p) AV_RN16(p)
+#   elif !defined(AV_RN16) &&  defined(AV_RL16)
+#       define AV_RN16(p) AV_RL16(p)
+#   endif
+
+#   if    defined(AV_WN16) && !defined(AV_WL16)
+#       define AV_WL16(p, v) AV_WN16(p, v)
+#   elif !defined(AV_WN16) &&  defined(AV_WL16)
+#       define AV_WN16(p, v) AV_WL16(p, v)
+#   endif
+
+#   if    defined(AV_RN24) && !defined(AV_RL24)
+#       define AV_RL24(p) AV_RN24(p)
+#   elif !defined(AV_RN24) &&  defined(AV_RL24)
+#       define AV_RN24(p) AV_RL24(p)
+#   endif
+
+#   if    defined(AV_WN24) && !defined(AV_WL24)
+#       define AV_WL24(p, v) AV_WN24(p, v)
+#   elif !defined(AV_WN24) &&  defined(AV_WL24)
+#       define AV_WN24(p, v) AV_WL24(p, v)
+#   endif
+
+#   if    defined(AV_RN32) && !defined(AV_RL32)
+#       define AV_RL32(p) AV_RN32(p)
+#   elif !defined(AV_RN32) &&  defined(AV_RL32)
+#       define AV_RN32(p) AV_RL32(p)
+#   endif
+
+#   if    defined(AV_WN32) && !defined(AV_WL32)
+#       define AV_WL32(p, v) AV_WN32(p, v)
+#   elif !defined(AV_WN32) &&  defined(AV_WL32)
+#       define AV_WN32(p, v) AV_WL32(p, v)
+#   endif
+
+#   if    defined(AV_RN48) && !defined(AV_RL48)
+#       define AV_RL48(p) AV_RN48(p)
+#   elif !defined(AV_RN48) &&  defined(AV_RL48)
+#       define AV_RN48(p) AV_RL48(p)
+#   endif
+
+#   if    defined(AV_WN48) && !defined(AV_WL48)
+#       define AV_WL48(p, v) AV_WN48(p, v)
+#   elif !defined(AV_WN48) &&  defined(AV_WL48)
+#       define AV_WN48(p, v) AV_WL48(p, v)
+#   endif
+
+#   if    defined(AV_RN64) && !defined(AV_RL64)
+#       define AV_RL64(p) AV_RN64(p)
+#   elif !defined(AV_RN64) &&  defined(AV_RL64)
+#       define AV_RN64(p) AV_RL64(p)
+#   endif
+
+#   if    defined(AV_WN64) && !defined(AV_WL64)
+#       define AV_WL64(p, v) AV_WN64(p, v)
+#   elif !defined(AV_WN64) &&  defined(AV_WL64)
+#       define AV_WN64(p, v) AV_WL64(p, v)
+#   endif
+
+#endif /* !AV_HAVE_BIGENDIAN */
+
+/*
+ * Define AV_[RW]N helper macros to simplify definitions not provided
+ * by per-arch headers.
+ */
+
+#if defined(__GNUC__)
+
+union unaligned_64 { uint64_t l; } __attribute__((packed)) av_alias;
+union unaligned_32 { uint32_t l; } __attribute__((packed)) av_alias;
+union unaligned_16 { uint16_t l; } __attribute__((packed)) av_alias;
+
+#   define AV_RN(s, p) (((const union unaligned_##s *) (p))->l)
+#   define AV_WN(s, p, v) ((((union unaligned_##s *) (p))->l) = (v))
+
+#elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_X64) || defined(_M_ARM64)) && AV_HAVE_FAST_UNALIGNED
+
+#   define AV_RN(s, p) (*((const __unaligned uint##s##_t*)(p)))
+#   define AV_WN(s, p, v) (*((__unaligned uint##s##_t*)(p)) = (v))
+
+#elif AV_HAVE_FAST_UNALIGNED
+
+#   define AV_RN(s, p) (((const av_alias##s*)(p))->u##s)
+#   define AV_WN(s, p, v) (((av_alias##s*)(p))->u##s = (v))
+
+#else
+
+#ifndef AV_RB16
+#   define AV_RB16(x)                           \
+    ((((const uint8_t*)(x))[0] << 8) |          \
+      ((const uint8_t*)(x))[1])
+#endif
+#ifndef AV_WB16
+#   define AV_WB16(p, val) do {                 \
+        uint16_t d = (val);                     \
+        ((uint8_t*)(p))[1] = (d);               \
+        ((uint8_t*)(p))[0] = (d)>>8;            \
+    } while(0)
+#endif
+
+#ifndef AV_RL16
+#   define AV_RL16(x)                           \
+    ((((const uint8_t*)(x))[1] << 8) |          \
+      ((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL16
+#   define AV_WL16(p, val) do {                 \
+        uint16_t d = (val);                     \
+        ((uint8_t*)(p))[0] = (d);               \
+        ((uint8_t*)(p))[1] = (d)>>8;            \
+    } while(0)
+#endif
+
+#ifndef AV_RB32
+#   define AV_RB32(x)                                \
+    (((uint32_t)((const uint8_t*)(x))[0] << 24) |    \
+               (((const uint8_t*)(x))[1] << 16) |    \
+               (((const uint8_t*)(x))[2] <<  8) |    \
+                ((const uint8_t*)(x))[3])
+#endif
+#ifndef AV_WB32
+#   define AV_WB32(p, val) do {                 \
+        uint32_t d = (val);                     \
+        ((uint8_t*)(p))[3] = (d);               \
+        ((uint8_t*)(p))[2] = (d)>>8;            \
+        ((uint8_t*)(p))[1] = (d)>>16;           \
+        ((uint8_t*)(p))[0] = (d)>>24;           \
+    } while(0)
+#endif
+
+#ifndef AV_RL32
+#   define AV_RL32(x)                                \
+    (((uint32_t)((const uint8_t*)(x))[3] << 24) |    \
+               (((const uint8_t*)(x))[2] << 16) |    \
+               (((const uint8_t*)(x))[1] <<  8) |    \
+                ((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL32
+#   define AV_WL32(p, val) do {                 \
+        uint32_t d = (val);                     \
+        ((uint8_t*)(p))[0] = (d);               \
+        ((uint8_t*)(p))[1] = (d)>>8;            \
+        ((uint8_t*)(p))[2] = (d)>>16;           \
+        ((uint8_t*)(p))[3] = (d)>>24;           \
+    } while(0)
+#endif
+
+#ifndef AV_RB64
+#   define AV_RB64(x)                                   \
+    (((uint64_t)((const uint8_t*)(x))[0] << 56) |       \
+     ((uint64_t)((const uint8_t*)(x))[1] << 48) |       \
+     ((uint64_t)((const uint8_t*)(x))[2] << 40) |       \
+     ((uint64_t)((const uint8_t*)(x))[3] << 32) |       \
+     ((uint64_t)((const uint8_t*)(x))[4] << 24) |       \
+     ((uint64_t)((const uint8_t*)(x))[5] << 16) |       \
+     ((uint64_t)((const uint8_t*)(x))[6] <<  8) |       \
+      (uint64_t)((const uint8_t*)(x))[7])
+#endif
+#ifndef AV_WB64
+#   define AV_WB64(p, val) do {                 \
+        uint64_t d = (val);                     \
+        ((uint8_t*)(p))[7] = (d);               \
+        ((uint8_t*)(p))[6] = (d)>>8;            \
+        ((uint8_t*)(p))[5] = (d)>>16;           \
+        ((uint8_t*)(p))[4] = (d)>>24;           \
+        ((uint8_t*)(p))[3] = (d)>>32;           \
+        ((uint8_t*)(p))[2] = (d)>>40;           \
+        ((uint8_t*)(p))[1] = (d)>>48;           \
+        ((uint8_t*)(p))[0] = (d)>>56;           \
+    } while(0)
+#endif
+
+#ifndef AV_RL64
+#   define AV_RL64(x)                                   \
+    (((uint64_t)((const uint8_t*)(x))[7] << 56) |       \
+     ((uint64_t)((const uint8_t*)(x))[6] << 48) |       \
+     ((uint64_t)((const uint8_t*)(x))[5] << 40) |       \
+     ((uint64_t)((const uint8_t*)(x))[4] << 32) |       \
+     ((uint64_t)((const uint8_t*)(x))[3] << 24) |       \
+     ((uint64_t)((const uint8_t*)(x))[2] << 16) |       \
+     ((uint64_t)((const uint8_t*)(x))[1] <<  8) |       \
+      (uint64_t)((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL64
+#   define AV_WL64(p, val) do {                 \
+        uint64_t d = (val);                     \
+        ((uint8_t*)(p))[0] = (d);               \
+        ((uint8_t*)(p))[1] = (d)>>8;            \
+        ((uint8_t*)(p))[2] = (d)>>16;           \
+        ((uint8_t*)(p))[3] = (d)>>24;           \
+        ((uint8_t*)(p))[4] = (d)>>32;           \
+        ((uint8_t*)(p))[5] = (d)>>40;           \
+        ((uint8_t*)(p))[6] = (d)>>48;           \
+        ((uint8_t*)(p))[7] = (d)>>56;           \
+    } while(0)
+#endif
+
+#if AV_HAVE_BIGENDIAN
+#   define AV_RN(s, p)    AV_RB##s(p)
+#   define AV_WN(s, p, v) AV_WB##s(p, v)
+#else
+#   define AV_RN(s, p)    AV_RL##s(p)
+#   define AV_WN(s, p, v) AV_WL##s(p, v)
+#endif
+
+#endif /* HAVE_FAST_UNALIGNED */
+
+#ifndef AV_RN16
+#   define AV_RN16(p) AV_RN(16, p)
+#endif
+
+#ifndef AV_RN32
+#   define AV_RN32(p) AV_RN(32, p)
+#endif
+
+#ifndef AV_RN64
+#   define AV_RN64(p) AV_RN(64, p)
+#endif
+
+#ifndef AV_WN16
+#   define AV_WN16(p, v) AV_WN(16, p, v)
+#endif
+
+#ifndef AV_WN32
+#   define AV_WN32(p, v) AV_WN(32, p, v)
+#endif
+
+#ifndef AV_WN64
+#   define AV_WN64(p, v) AV_WN(64, p, v)
+#endif
+
+#if AV_HAVE_BIGENDIAN
+#   define AV_RB(s, p)    AV_RN##s(p)
+#   define AV_WB(s, p, v) AV_WN##s(p, v)
+#   define AV_RL(s, p)    av_bswap##s(AV_RN##s(p))
+#   define AV_WL(s, p, v) AV_WN##s(p, av_bswap##s(v))
+#else
+#   define AV_RB(s, p)    av_bswap##s(AV_RN##s(p))
+#   define AV_WB(s, p, v) AV_WN##s(p, av_bswap##s(v))
+#   define AV_RL(s, p)    AV_RN##s(p)
+#   define AV_WL(s, p, v) AV_WN##s(p, v)
+#endif
+
+#define AV_RB8(x)     (((const uint8_t*)(x))[0])
+#define AV_WB8(p, d)  do { ((uint8_t*)(p))[0] = (d); } while(0)
+
+#define AV_RL8(x)     AV_RB8(x)
+#define AV_WL8(p, d)  AV_WB8(p, d)
+
+#ifndef AV_RB16
+#   define AV_RB16(p)    AV_RB(16, p)
+#endif
+#ifndef AV_WB16
+#   define AV_WB16(p, v) AV_WB(16, p, v)
+#endif
+
+#ifndef AV_RL16
+#   define AV_RL16(p)    AV_RL(16, p)
+#endif
+#ifndef AV_WL16
+#   define AV_WL16(p, v) AV_WL(16, p, v)
+#endif
+
+#ifndef AV_RB32
+#   define AV_RB32(p)    AV_RB(32, p)
+#endif
+#ifndef AV_WB32
+#   define AV_WB32(p, v) AV_WB(32, p, v)
+#endif
+
+#ifndef AV_RL32
+#   define AV_RL32(p)    AV_RL(32, p)
+#endif
+#ifndef AV_WL32
+#   define AV_WL32(p, v) AV_WL(32, p, v)
+#endif
+
+#ifndef AV_RB64
+#   define AV_RB64(p)    AV_RB(64, p)
+#endif
+#ifndef AV_WB64
+#   define AV_WB64(p, v) AV_WB(64, p, v)
+#endif
+
+#ifndef AV_RL64
+#   define AV_RL64(p)    AV_RL(64, p)
+#endif
+#ifndef AV_WL64
+#   define AV_WL64(p, v) AV_WL(64, p, v)
+#endif
+
+#ifndef AV_RB24
+#   define AV_RB24(x)                           \
+    ((((const uint8_t*)(x))[0] << 16) |         \
+     (((const uint8_t*)(x))[1] <<  8) |         \
+      ((const uint8_t*)(x))[2])
+#endif
+#ifndef AV_WB24
+#   define AV_WB24(p, d) do {                   \
+        ((uint8_t*)(p))[2] = (d);               \
+        ((uint8_t*)(p))[1] = (d)>>8;            \
+        ((uint8_t*)(p))[0] = (d)>>16;           \
+    } while(0)
+#endif
+
+#ifndef AV_RL24
+#   define AV_RL24(x)                           \
+    ((((const uint8_t*)(x))[2] << 16) |         \
+     (((const uint8_t*)(x))[1] <<  8) |         \
+      ((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL24
+#   define AV_WL24(p, d) do {                   \
+        ((uint8_t*)(p))[0] = (d);               \
+        ((uint8_t*)(p))[1] = (d)>>8;            \
+        ((uint8_t*)(p))[2] = (d)>>16;           \
+    } while(0)
+#endif
+
+#ifndef AV_RB48
+#   define AV_RB48(x)                                     \
+    (((uint64_t)((const uint8_t*)(x))[0] << 40) |         \
+     ((uint64_t)((const uint8_t*)(x))[1] << 32) |         \
+     ((uint64_t)((const uint8_t*)(x))[2] << 24) |         \
+     ((uint64_t)((const uint8_t*)(x))[3] << 16) |         \
+     ((uint64_t)((const uint8_t*)(x))[4] <<  8) |         \
+      (uint64_t)((const uint8_t*)(x))[5])
+#endif
+#ifndef AV_WB48
+#   define AV_WB48(p, darg) do {                \
+        uint64_t d = (darg);                    \
+        ((uint8_t*)(p))[5] = (d);               \
+        ((uint8_t*)(p))[4] = (d)>>8;            \
+        ((uint8_t*)(p))[3] = (d)>>16;           \
+        ((uint8_t*)(p))[2] = (d)>>24;           \
+        ((uint8_t*)(p))[1] = (d)>>32;           \
+        ((uint8_t*)(p))[0] = (d)>>40;           \
+    } while(0)
+#endif
+
+#ifndef AV_RL48
+#   define AV_RL48(x)                                     \
+    (((uint64_t)((const uint8_t*)(x))[5] << 40) |         \
+     ((uint64_t)((const uint8_t*)(x))[4] << 32) |         \
+     ((uint64_t)((const uint8_t*)(x))[3] << 24) |         \
+     ((uint64_t)((const uint8_t*)(x))[2] << 16) |         \
+     ((uint64_t)((const uint8_t*)(x))[1] <<  8) |         \
+      (uint64_t)((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL48
+#   define AV_WL48(p, darg) do {                \
+        uint64_t d = (darg);                    \
+        ((uint8_t*)(p))[0] = (d);               \
+        ((uint8_t*)(p))[1] = (d)>>8;            \
+        ((uint8_t*)(p))[2] = (d)>>16;           \
+        ((uint8_t*)(p))[3] = (d)>>24;           \
+        ((uint8_t*)(p))[4] = (d)>>32;           \
+        ((uint8_t*)(p))[5] = (d)>>40;           \
+    } while(0)
+#endif
+
+/*
+ * The AV_[RW]NA macros access naturally aligned data
+ * in a type-safe way.
+ */
+
+#define AV_RNA(s, p)    (((const av_alias##s*)(p))->u##s)
+#define AV_WNA(s, p, v) (((av_alias##s*)(p))->u##s = (v))
+
+#ifndef AV_RN16A
+#   define AV_RN16A(p) AV_RNA(16, p)
+#endif
+
+#ifndef AV_RN32A
+#   define AV_RN32A(p) AV_RNA(32, p)
+#endif
+
+#ifndef AV_RN64A
+#   define AV_RN64A(p) AV_RNA(64, p)
+#endif
+
+#ifndef AV_WN16A
+#   define AV_WN16A(p, v) AV_WNA(16, p, v)
+#endif
+
+#ifndef AV_WN32A
+#   define AV_WN32A(p, v) AV_WNA(32, p, v)
+#endif
+
+#ifndef AV_WN64A
+#   define AV_WN64A(p, v) AV_WNA(64, p, v)
+#endif
+
+#if AV_HAVE_BIGENDIAN
+#   define AV_RLA(s, p)    av_bswap##s(AV_RN##s##A(p))
+#   define AV_WLA(s, p, v) AV_WN##s##A(p, av_bswap##s(v))
+#else
+#   define AV_RLA(s, p)    AV_RN##s##A(p)
+#   define AV_WLA(s, p, v) AV_WN##s##A(p, v)
+#endif
+
+#ifndef AV_RL64A
+#   define AV_RL64A(p) AV_RLA(64, p)
+#endif
+#ifndef AV_WL64A
+#   define AV_WL64A(p, v) AV_WLA(64, p, v)
+#endif
+
+/*
+ * The AV_COPYxxU macros are suitable for copying data to/from unaligned
+ * memory locations.
+ */
+
+#define AV_COPYU(n, d, s) AV_WN##n(d, AV_RN##n(s));
+
+#ifndef AV_COPY16U
+#   define AV_COPY16U(d, s) AV_COPYU(16, d, s)
+#endif
+
+#ifndef AV_COPY32U
+#   define AV_COPY32U(d, s) AV_COPYU(32, d, s)
+#endif
+
+#ifndef AV_COPY64U
+#   define AV_COPY64U(d, s) AV_COPYU(64, d, s)
+#endif
+
+#ifndef AV_COPY128U
+#   define AV_COPY128U(d, s)                                    \
+    do {                                                        \
+        AV_COPY64U(d, s);                                       \
+        AV_COPY64U((char *)(d) + 8, (const char *)(s) + 8);     \
+    } while(0)
+#endif
+
+/* Parameters for AV_COPY*, AV_SWAP*, AV_ZERO* must be
+ * naturally aligned. They may be implemented using MMX,
+ * so emms_c() must be called before using any float code
+ * afterwards.
+ */
+
+#define AV_COPY(n, d, s) \
+    (((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n)
+
+#ifndef AV_COPY16
+#   define AV_COPY16(d, s) AV_COPY(16, d, s)
+#endif
+
+#ifndef AV_COPY32
+#   define AV_COPY32(d, s) AV_COPY(32, d, s)
+#endif
+
+#ifndef AV_COPY64
+#   define AV_COPY64(d, s) AV_COPY(64, d, s)
+#endif
+
+#ifndef AV_COPY128
+#   define AV_COPY128(d, s)                    \
+    do {                                       \
+        AV_COPY64(d, s);                       \
+        AV_COPY64((char*)(d)+8, (char*)(s)+8); \
+    } while(0)
+#endif
+
+#define AV_SWAP(n, a, b) FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b))
+
+#ifndef AV_SWAP64
+#   define AV_SWAP64(a, b) AV_SWAP(64, a, b)
+#endif
+
+#define AV_ZERO(n, d) (((av_alias##n*)(d))->u##n = 0)
+
+#ifndef AV_ZERO16
+#   define AV_ZERO16(d) AV_ZERO(16, d)
+#endif
+
+#ifndef AV_ZERO32
+#   define AV_ZERO32(d) AV_ZERO(32, d)
+#endif
+
+#ifndef AV_ZERO64
+#   define AV_ZERO64(d) AV_ZERO(64, d)
+#endif
+
+#ifndef AV_ZERO128
+#   define AV_ZERO128(d)         \
+    do {                         \
+        AV_ZERO64(d);            \
+        AV_ZERO64((char*)(d)+8); \
+    } while(0)
+#endif
+
+#endif /* AVUTIL_INTREADWRITE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/lfg.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/lfg.c
new file mode 100644
index 000000000..46b04d240
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/lfg.c
@@ -0,0 +1,87 @@
+/*
+ * Lagged Fibonacci PRNG
+ * Copyright (c) 2008 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <inttypes.h>
+#include <limits.h>
+#include <math.h>
+#include "lfg.h"
+#include "crc.h"
+#include "md5.h"
+#include "error.h"
+#include "intreadwrite.h"
+#include "attributes.h"
+
+av_cold void av_lfg_init(AVLFG *c, unsigned int seed)
+{
+    uint8_t tmp[16] = { 0 };
+    int i;
+
+    for (i = 8; i < 64; i += 4) {
+        AV_WL32(tmp, seed);
+        tmp[4] = i;
+        av_md5_sum(tmp, tmp, 16);
+        c->state[i    ] = AV_RL32(tmp);
+        c->state[i + 1] = AV_RL32(tmp + 4);
+        c->state[i + 2] = AV_RL32(tmp + 8);
+        c->state[i + 3] = AV_RL32(tmp + 12);
+    }
+    c->index = 0;
+}
+
+void av_bmg_get(AVLFG *lfg, double out[2])
+{
+    double x1, x2, w;
+
+    do {
+        x1 = 2.0 / UINT_MAX * av_lfg_get(lfg) - 1.0;
+        x2 = 2.0 / UINT_MAX * av_lfg_get(lfg) - 1.0;
+        w  = x1 * x1 + x2 * x2;
+    } while (w >= 1.0);
+
+    w = sqrt((-2.0 * log(w)) / w);
+    out[0] = x1 * w;
+    out[1] = x2 * w;
+}
+
+int av_lfg_init_from_data(AVLFG *c, const uint8_t *data, unsigned int length) {
+    unsigned int beg, end, segm;
+    const AVCRC *avcrc;
+    uint32_t crc = 1;
+
+    /* avoid integer overflow in the loop below. */
+    if (length > (UINT_MAX / 128U)) return AVERROR(EINVAL);
+
+    c->index = 0;
+    avcrc = av_crc_get_table(AV_CRC_32_IEEE); /* This can't fail. It's a well-defined table in crc.c */
+
+    /* across 64 segments of the incoming data,
+     * do a running crc of each segment and store the crc as the state for that slot.
+     * this works even if the length of the segment is 0 bytes. */
+    beg = 0;
+    for (segm = 0;segm < 64;segm++) {
+        end = (((segm + 1) * length) / 64);
+        crc = av_crc(avcrc, crc, data + beg, end - beg);
+        c->state[segm] = (unsigned int)crc;
+        beg = end;
+    }
+
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/lfg.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/lfg.h
new file mode 100644
index 000000000..03f779ad8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/lfg.h
@@ -0,0 +1,71 @@
+/*
+ * Lagged Fibonacci PRNG
+ * Copyright (c) 2008 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_LFG_H
+#define AVUTIL_LFG_H
+
+#include <stdint.h>
+
+typedef struct AVLFG {
+    unsigned int state[64];
+    int index;
+} AVLFG;
+
+void av_lfg_init(AVLFG *c, unsigned int seed);
+
+/**
+ * Seed the state of the ALFG using binary data.
+ *
+ * Return value: 0 on success, negative value (AVERROR) on failure.
+ */
+int av_lfg_init_from_data(AVLFG *c, const uint8_t *data, unsigned int length);
+
+/**
+ * Get the next random unsigned 32-bit number using an ALFG.
+ *
+ * Please also consider a simple LCG like state= state*1664525+1013904223,
+ * it may be good enough and faster for your specific use case.
+ */
+static inline unsigned int av_lfg_get(AVLFG *c){
+    c->state[c->index & 63] = c->state[(c->index-24) & 63] + c->state[(c->index-55) & 63];
+    return c->state[c->index++ & 63];
+}
+
+/**
+ * Get the next random unsigned 32-bit number using a MLFG.
+ *
+ * Please also consider av_lfg_get() above, it is faster.
+ */
+static inline unsigned int av_mlfg_get(AVLFG *c){
+    unsigned int a= c->state[(c->index-55) & 63];
+    unsigned int b= c->state[(c->index-24) & 63];
+    return c->state[c->index++ & 63] = 2*a*b+a+b;
+}
+
+/**
+ * Get the next two numbers generated by a Box-Muller Gaussian
+ * generator using the random numbers issued by lfg.
+ *
+ * @param out array where the two generated numbers are placed
+ */
+void av_bmg_get(AVLFG *lfg, double out[2]);
+
+#endif /* AVUTIL_LFG_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/libm.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/libm.h
new file mode 100644
index 000000000..a81996239
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/libm.h
@@ -0,0 +1,471 @@
+/*
+ * erf function: Copyright (c) 2006 John Maddock
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Replacements for frequently missing libm functions
+ */
+
+#ifndef AVUTIL_LIBM_H
+#define AVUTIL_LIBM_H
+
+#include <math.h>
+#include "config.h"
+#include "attributes.h"
+#include "intfloat.h"
+#include "mathematics.h"
+
+#if HAVE_MIPSFPU && HAVE_INLINE_ASM
+#include "libavutil/mips/libm_mips.h"
+#endif /* HAVE_MIPSFPU && HAVE_INLINE_ASM*/
+
+#if !HAVE_ATANF
+#undef atanf
+#define atanf(x) ((float)atan(x))
+#endif /* HAVE_ATANF */
+
+#if !HAVE_ATAN2F
+#undef atan2f
+#define atan2f(y, x) ((float)atan2(y, x))
+#endif /* HAVE_ATAN2F */
+
+#if !HAVE_POWF
+#undef powf
+#define powf(x, y) ((float)pow(x, y))
+#endif /* HAVE_POWF */
+
+#if !HAVE_CBRT
+static av_always_inline double cbrt(double x)
+{
+    return x < 0 ? -pow(-x, 1.0 / 3.0) : pow(x, 1.0 / 3.0);
+}
+#endif /* HAVE_CBRT */
+
+#if !HAVE_CBRTF
+static av_always_inline float cbrtf(float x)
+{
+    return x < 0 ? -powf(-x, 1.0 / 3.0) : powf(x, 1.0 / 3.0);
+}
+#endif /* HAVE_CBRTF */
+
+#if !HAVE_COPYSIGN
+static av_always_inline double copysign(double x, double y)
+{
+    uint64_t vx = av_double2int(x);
+    uint64_t vy = av_double2int(y);
+    return av_int2double((vx & UINT64_C(0x7fffffffffffffff)) | (vy & UINT64_C(0x8000000000000000)));
+}
+#endif /* HAVE_COPYSIGN */
+
+#if !HAVE_COSF
+#undef cosf
+#define cosf(x) ((float)cos(x))
+#endif /* HAVE_COSF */
+
+#if !HAVE_ERF
+static inline double ff_eval_poly(const double *coeff, int size, double x) {
+    double sum = coeff[size-1];
+    int i;
+    for (i = size-2; i >= 0; --i) {
+        sum *= x;
+        sum += coeff[i];
+    }
+    return sum;
+}
+
+/**
+ * erf function
+ * Algorithm taken from the Boost project, source:
+ * http://www.boost.org/doc/libs/1_46_1/boost/math/special_functions/erf.hpp
+ * Use, modification and distribution are subject to the
+ * Boost Software License, Version 1.0 (see notice below).
+ * Boost Software License - Version 1.0 - August 17th, 2003
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+ */
+static inline double erf(double z)
+{
+#ifndef FF_ARRAY_ELEMS
+#define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
+#endif
+    double result;
+
+    /* handle the symmetry: erf(-x) = -erf(x) */
+    if (z < 0)
+        return -erf(-z);
+
+    /* branch based on range of z, and pick appropriate approximation */
+    if (z == 0)
+        return 0;
+    else if (z < 1e-10)
+        return z * 1.125 + z * 0.003379167095512573896158903121545171688;
+    else if (z < 0.5) {
+        // Maximum Deviation Found:                     1.561e-17
+        // Expected Error Term:                         1.561e-17
+        // Maximum Relative Change in Control Points:   1.155e-04
+        // Max Error found at double precision =        2.961182e-17
+
+        static const double y = 1.044948577880859375;
+        static const double p[] = {
+            0.0834305892146531832907,
+            -0.338165134459360935041,
+            -0.0509990735146777432841,
+            -0.00772758345802133288487,
+            -0.000322780120964605683831,
+        };
+        static const double q[] = {
+            1,
+            0.455004033050794024546,
+            0.0875222600142252549554,
+            0.00858571925074406212772,
+            0.000370900071787748000569,
+        };
+        double zz = z * z;
+        return z * (y + ff_eval_poly(p, FF_ARRAY_ELEMS(p), zz) / ff_eval_poly(q, FF_ARRAY_ELEMS(q), zz));
+    }
+    /* here onwards compute erfc */
+    else if (z < 1.5) {
+        // Maximum Deviation Found:                     3.702e-17
+        // Expected Error Term:                         3.702e-17
+        // Maximum Relative Change in Control Points:   2.845e-04
+        // Max Error found at double precision =        4.841816e-17
+        static const double y = 0.405935764312744140625;
+        static const double p[] = {
+            -0.098090592216281240205,
+            0.178114665841120341155,
+            0.191003695796775433986,
+            0.0888900368967884466578,
+            0.0195049001251218801359,
+            0.00180424538297014223957,
+        };
+        static const double q[] = {
+            1,
+            1.84759070983002217845,
+            1.42628004845511324508,
+            0.578052804889902404909,
+            0.12385097467900864233,
+            0.0113385233577001411017,
+            0.337511472483094676155e-5,
+        };
+        result = y + ff_eval_poly(p, FF_ARRAY_ELEMS(p), z - 0.5) / ff_eval_poly(q, FF_ARRAY_ELEMS(q), z - 0.5);
+        result *= exp(-z * z) / z;
+        return 1 - result;
+    }
+    else if (z < 2.5) {
+        // Max Error found at double precision =        6.599585e-18
+        // Maximum Deviation Found:                     3.909e-18
+        // Expected Error Term:                         3.909e-18
+        // Maximum Relative Change in Control Points:   9.886e-05
+        static const double y = 0.50672817230224609375;
+        static const double p[] = {
+            -0.0243500476207698441272,
+            0.0386540375035707201728,
+            0.04394818964209516296,
+            0.0175679436311802092299,
+            0.00323962406290842133584,
+            0.000235839115596880717416,
+        };
+        static const double q[] = {
+            1,
+            1.53991494948552447182,
+            0.982403709157920235114,
+            0.325732924782444448493,
+            0.0563921837420478160373,
+            0.00410369723978904575884,
+        };
+        result = y + ff_eval_poly(p, FF_ARRAY_ELEMS(p), z - 1.5) / ff_eval_poly(q, FF_ARRAY_ELEMS(q), z - 1.5);
+        result *= exp(-z * z) / z;
+        return 1 - result;
+    }
+    else if (z < 4.5) {
+        // Maximum Deviation Found:                     1.512e-17
+        // Expected Error Term:                         1.512e-17
+        // Maximum Relative Change in Control Points:   2.222e-04
+        // Max Error found at double precision =        2.062515e-17
+        static const double y = 0.5405750274658203125;
+        static const double p[] = {
+            0.00295276716530971662634,
+            0.0137384425896355332126,
+            0.00840807615555585383007,
+            0.00212825620914618649141,
+            0.000250269961544794627958,
+            0.113212406648847561139e-4,
+        };
+        static const double q[] = {
+            1,
+            1.04217814166938418171,
+            0.442597659481563127003,
+            0.0958492726301061423444,
+            0.0105982906484876531489,
+            0.000479411269521714493907,
+        };
+        result = y + ff_eval_poly(p, FF_ARRAY_ELEMS(p), z - 3.5) / ff_eval_poly(q, FF_ARRAY_ELEMS(q), z - 3.5);
+        result *= exp(-z * z) / z;
+        return 1 - result;
+    }
+    /* differ from Boost here, the claim of underflow of erfc(x) past 5.8 is
+     * slightly incorrect, change to 5.92
+     * (really somewhere between 5.9125 and 5.925 is when it saturates) */
+    else if (z < 5.92) {
+        // Max Error found at double precision =        2.997958e-17
+        // Maximum Deviation Found:                     2.860e-17
+        // Expected Error Term:                         2.859e-17
+        // Maximum Relative Change in Control Points:   1.357e-05
+        static const double y = 0.5579090118408203125;
+        static const double p[] = {
+            0.00628057170626964891937,
+            0.0175389834052493308818,
+            -0.212652252872804219852,
+            -0.687717681153649930619,
+            -2.5518551727311523996,
+            -3.22729451764143718517,
+            -2.8175401114513378771,
+        };
+        static const double q[] = {
+            1,
+            2.79257750980575282228,
+            11.0567237927800161565,
+            15.930646027911794143,
+            22.9367376522880577224,
+            13.5064170191802889145,
+            5.48409182238641741584,
+        };
+        result = y + ff_eval_poly(p, FF_ARRAY_ELEMS(p), 1 / z) / ff_eval_poly(q, FF_ARRAY_ELEMS(q), 1 / z);
+        result *= exp(-z * z) / z;
+        return 1 - result;
+    }
+    /* handle the nan case, but don't use isnan for max portability */
+    else if (z != z)
+        return z;
+    /* finally return saturated result */
+    else
+        return 1;
+}
+#endif /* HAVE_ERF */
+
+#if !HAVE_EXPF
+#undef expf
+#define expf(x) ((float)exp(x))
+#endif /* HAVE_EXPF */
+
+#if !HAVE_EXP2
+#undef exp2
+#define exp2(x) exp((x) * M_LN2)
+#endif /* HAVE_EXP2 */
+
+#if !HAVE_EXP2F
+#undef exp2f
+#define exp2f(x) ((float)exp2(x))
+#endif /* HAVE_EXP2F */
+
+#if !HAVE_ISINF
+#undef isinf
+/* Note: these do not follow the BSD/Apple/GNU convention of returning -1 for
+-Inf, +1 for Inf, 0 otherwise, but merely follow the POSIX/ISO mandated spec of
+returning a non-zero value for +/-Inf, 0 otherwise. */
+static av_always_inline av_const int avpriv_isinff(float x)
+{
+    uint32_t v = av_float2int(x);
+    if ((v & 0x7f800000) != 0x7f800000)
+        return 0;
+    return !(v & 0x007fffff);
+}
+
+static av_always_inline av_const int avpriv_isinf(double x)
+{
+    uint64_t v = av_double2int(x);
+    if ((v & 0x7ff0000000000000) != 0x7ff0000000000000)
+        return 0;
+    return !(v & 0x000fffffffffffff);
+}
+
+#define isinf(x)                  \
+    (sizeof(x) == sizeof(float)   \
+        ? avpriv_isinff(x)        \
+        : avpriv_isinf(x))
+#endif /* HAVE_ISINF */
+
+#if !HAVE_ISNAN
+static av_always_inline av_const int avpriv_isnanf(float x)
+{
+    uint32_t v = av_float2int(x);
+    if ((v & 0x7f800000) != 0x7f800000)
+        return 0;
+    return v & 0x007fffff;
+}
+
+static av_always_inline av_const int avpriv_isnan(double x)
+{
+    uint64_t v = av_double2int(x);
+    if ((v & 0x7ff0000000000000) != 0x7ff0000000000000)
+        return 0;
+    return (v & 0x000fffffffffffff) && 1;
+}
+
+#define isnan(x)                  \
+    (sizeof(x) == sizeof(float)   \
+        ? avpriv_isnanf(x)        \
+        : avpriv_isnan(x))
+#endif /* HAVE_ISNAN */
+
+#if !HAVE_ISFINITE
+static av_always_inline av_const int avpriv_isfinitef(float x)
+{
+    uint32_t v = av_float2int(x);
+    return (v & 0x7f800000) != 0x7f800000;
+}
+
+static av_always_inline av_const int avpriv_isfinite(double x)
+{
+    uint64_t v = av_double2int(x);
+    return (v & 0x7ff0000000000000) != 0x7ff0000000000000;
+}
+
+#define isfinite(x)                  \
+    (sizeof(x) == sizeof(float)      \
+        ? avpriv_isfinitef(x)        \
+        : avpriv_isfinite(x))
+#endif /* HAVE_ISFINITE */
+
+#if !HAVE_HYPOT
+static inline av_const double hypot(double x, double y)
+{
+    double ret, temp;
+    x = fabs(x);
+    y = fabs(y);
+
+    if (isinf(x) || isinf(y))
+        return av_int2double(0x7ff0000000000000);
+    if (x == 0 || y == 0)
+        return x + y;
+    if (x < y) {
+        temp = x;
+        x = y;
+        y = temp;
+    }
+
+    y = y/x;
+    return x*sqrt(1 + y*y);
+}
+#endif /* HAVE_HYPOT */
+
+#if !HAVE_LDEXPF
+#undef ldexpf
+#define ldexpf(x, exp) ((float)ldexp(x, exp))
+#endif /* HAVE_LDEXPF */
+
+#if !HAVE_LLRINT
+#undef llrint
+#define llrint(x) ((long long)rint(x))
+#endif /* HAVE_LLRINT */
+
+#if !HAVE_LLRINTF
+#undef llrintf
+#define llrintf(x) ((long long)rint(x))
+#endif /* HAVE_LLRINT */
+
+#if !HAVE_LOG2
+#undef log2
+#define log2(x) (log(x) * 1.44269504088896340736)
+#endif /* HAVE_LOG2 */
+
+#if !HAVE_LOG2F
+#undef log2f
+#define log2f(x) ((float)log2(x))
+#endif /* HAVE_LOG2F */
+
+#if !HAVE_LOG10F
+#undef log10f
+#define log10f(x) ((float)log10(x))
+#endif /* HAVE_LOG10F */
+
+#if !HAVE_SINF
+#undef sinf
+#define sinf(x) ((float)sin(x))
+#endif /* HAVE_SINF */
+
+#if !HAVE_RINT
+static inline double rint(double x)
+{
+    return x >= 0 ? floor(x + 0.5) : ceil(x - 0.5);
+}
+#endif /* HAVE_RINT */
+
+#if !HAVE_LRINT
+static av_always_inline av_const long int lrint(double x)
+{
+    return rint(x);
+}
+#endif /* HAVE_LRINT */
+
+#if !HAVE_LRINTF
+static av_always_inline av_const long int lrintf(float x)
+{
+    return (int)(rint(x));
+}
+#endif /* HAVE_LRINTF */
+
+#if !HAVE_ROUND
+static av_always_inline av_const double round(double x)
+{
+    return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
+}
+#endif /* HAVE_ROUND */
+
+#if !HAVE_ROUNDF
+static av_always_inline av_const float roundf(float x)
+{
+    return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
+}
+#endif /* HAVE_ROUNDF */
+
+#if !HAVE_TRUNC
+static av_always_inline av_const double trunc(double x)
+{
+    return (x > 0) ? floor(x) : ceil(x);
+}
+#endif /* HAVE_TRUNC */
+
+#if !HAVE_TRUNCF
+static av_always_inline av_const float truncf(float x)
+{
+    return (x > 0) ? floor(x) : ceil(x);
+}
+#endif /* HAVE_TRUNCF */
+
+#endif /* AVUTIL_LIBM_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/lls.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/lls.c
new file mode 100644
index 000000000..0560b6a79
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/lls.c
@@ -0,0 +1,123 @@
+/*
+ * linear least squares model
+ *
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * linear least squares model
+ */
+
+#include <math.h>
+#include <string.h>
+
+#include "attributes.h"
+#include "internal.h"
+#include "version.h"
+#include "lls.h"
+
+static void update_lls(LLSModel *m, const double *var)
+{
+    int i, j;
+
+    for (i = 0; i <= m->indep_count; i++) {
+        for (j = i; j <= m->indep_count; j++) {
+            m->covariance[i][j] += var[i] * var[j];
+        }
+    }
+}
+
+void avpriv_solve_lls(LLSModel *m, double threshold, unsigned short min_order)
+{
+    int i, j, k;
+    double (*factor)[MAX_VARS_ALIGN] = (void *) &m->covariance[1][0];
+    double (*covar) [MAX_VARS_ALIGN] = (void *) &m->covariance[1][1];
+    double *covar_y                = m->covariance[0];
+    int count                      = m->indep_count;
+
+    for (i = 0; i < count; i++) {
+        for (j = i; j < count; j++) {
+            double sum = covar[i][j];
+
+            for (k = 0; k <= i-1; k++)
+                sum -= factor[i][k] * factor[j][k];
+
+            if (i == j) {
+                if (sum < threshold)
+                    sum = 1.0;
+                factor[i][i] = sqrt(sum);
+            } else {
+                factor[j][i] = sum / factor[i][i];
+            }
+        }
+    }
+
+    for (i = 0; i < count; i++) {
+        double sum = covar_y[i + 1];
+
+        for (k = 0; k <= i-1; k++)
+            sum -= factor[i][k] * m->coeff[0][k];
+
+        m->coeff[0][i] = sum / factor[i][i];
+    }
+
+    for (j = count - 1; j >= min_order; j--) {
+        for (i = j; i >= 0; i--) {
+            double sum = m->coeff[0][i];
+
+            for (k = i + 1; k <= j; k++)
+                sum -= factor[k][i] * m->coeff[j][k];
+
+            m->coeff[j][i] = sum / factor[i][i];
+        }
+
+        m->variance[j] = covar_y[0];
+
+        for (i = 0; i <= j; i++) {
+            double sum = m->coeff[j][i] * covar[i][i] - 2 * covar_y[i + 1];
+
+            for (k = 0; k < i; k++)
+                sum += 2 * m->coeff[j][k] * covar[k][i];
+
+            m->variance[j] += m->coeff[j][i] * sum;
+        }
+    }
+}
+
+static double evaluate_lls(LLSModel *m, const double *param, int order)
+{
+    int i;
+    double out = 0;
+
+    for (i = 0; i <= order; i++)
+        out += param[i] * m->coeff[order][i];
+
+    return out;
+}
+
+av_cold void avpriv_init_lls(LLSModel *m, int indep_count)
+{
+    memset(m, 0, sizeof(LLSModel));
+    m->indep_count = indep_count;
+    m->update_lls = update_lls;
+    m->evaluate_lls = evaluate_lls;
+    if (ARCH_X86)
+        ff_init_lls_x86(m);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/lls.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/lls.h
new file mode 100644
index 000000000..1a276d537
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/lls.h
@@ -0,0 +1,64 @@
+/*
+ * linear least squares model
+ *
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_LLS_H
+#define AVUTIL_LLS_H
+
+#include "macros.h"
+#include "mem.h"
+#include "version.h"
+
+#define MAX_VARS 32
+#define MAX_VARS_ALIGN FFALIGN(MAX_VARS+1,4)
+
+//FIXME avoid direct access to LLSModel from outside
+
+/**
+ * Linear least squares model.
+ */
+typedef struct LLSModel {
+    DECLARE_ALIGNED(32, double, covariance[MAX_VARS_ALIGN][MAX_VARS_ALIGN]);
+    DECLARE_ALIGNED(32, double, coeff[MAX_VARS][MAX_VARS]);
+    double variance[MAX_VARS];
+    int indep_count;
+    /**
+     * Take the outer-product of var[] with itself, and add to the covariance matrix.
+     * @param m this context
+     * @param var training samples, starting with the value to be predicted
+     *            32-byte aligned, and any padding elements must be initialized
+     *            (i.e not denormal/nan).
+     */
+    void (*update_lls)(struct LLSModel *m, const double *var);
+    /**
+     * Inner product of var[] and the LPC coefs.
+     * @param m this context
+     * @param var training samples, excluding the value to be predicted. unaligned.
+     * @param order lpc order
+     */
+    double (*evaluate_lls)(struct LLSModel *m, const double *var, int order);
+} LLSModel;
+
+void avpriv_init_lls(LLSModel *m, int indep_count);
+void ff_init_lls_x86(LLSModel *m);
+void avpriv_solve_lls(LLSModel *m, double threshold, unsigned short min_order);
+
+#endif /* AVUTIL_LLS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/log.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/log.c
new file mode 100644
index 000000000..93a156b8e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/log.c
@@ -0,0 +1,435 @@
+/*
+ * log functions
+ * Copyright (c) 2003 Michel Bardiaux
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * logging functions
+ */
+
+#include "config.h"
+
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#if HAVE_IO_H
+#include <io.h>
+#endif
+#include <stdarg.h>
+#include <stdlib.h>
+#include "avutil.h"
+#include "bprint.h"
+#include "common.h"
+#include "internal.h"
+#include "log.h"
+#include "thread.h"
+
+static AVMutex mutex = AV_MUTEX_INITIALIZER;
+
+#define LINE_SZ 1024
+
+#if HAVE_VALGRIND_VALGRIND_H
+#include <valgrind/valgrind.h>
+/* this is the log level at which valgrind will output a full backtrace */
+#define BACKTRACE_LOGLEVEL AV_LOG_ERROR
+#endif
+
+static int av_log_level = AV_LOG_INFO;
+static int flags;
+
+#define NB_LEVELS 8
+#if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE
+#include <windows.h>
+static const uint8_t color[16 + AV_CLASS_CATEGORY_NB] = {
+    [AV_LOG_PANIC  /8] = 12,
+    [AV_LOG_FATAL  /8] = 12,
+    [AV_LOG_ERROR  /8] = 12,
+    [AV_LOG_WARNING/8] = 14,
+    [AV_LOG_INFO   /8] =  7,
+    [AV_LOG_VERBOSE/8] = 10,
+    [AV_LOG_DEBUG  /8] = 10,
+    [AV_LOG_TRACE  /8] = 8,
+    [16+AV_CLASS_CATEGORY_NA              ] =  7,
+    [16+AV_CLASS_CATEGORY_INPUT           ] = 13,
+    [16+AV_CLASS_CATEGORY_OUTPUT          ] =  5,
+    [16+AV_CLASS_CATEGORY_MUXER           ] = 13,
+    [16+AV_CLASS_CATEGORY_DEMUXER         ] =  5,
+    [16+AV_CLASS_CATEGORY_ENCODER         ] = 11,
+    [16+AV_CLASS_CATEGORY_DECODER         ] =  3,
+    [16+AV_CLASS_CATEGORY_FILTER          ] = 10,
+    [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] =  9,
+    [16+AV_CLASS_CATEGORY_SWSCALER        ] =  7,
+    [16+AV_CLASS_CATEGORY_SWRESAMPLER     ] =  7,
+    [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT ] = 13,
+    [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT  ] = 5,
+    [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT ] = 13,
+    [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT  ] = 5,
+    [16+AV_CLASS_CATEGORY_DEVICE_OUTPUT       ] = 13,
+    [16+AV_CLASS_CATEGORY_DEVICE_INPUT        ] = 5,
+};
+
+static int16_t background, attr_orig;
+static HANDLE con;
+#else
+
+static const uint32_t color[16 + AV_CLASS_CATEGORY_NB] = {
+    [AV_LOG_PANIC  /8] =  52 << 16 | 196 << 8 | 0x41,
+    [AV_LOG_FATAL  /8] = 208 <<  8 | 0x41,
+    [AV_LOG_ERROR  /8] = 196 <<  8 | 0x11,
+    [AV_LOG_WARNING/8] = 226 <<  8 | 0x03,
+    [AV_LOG_INFO   /8] = 253 <<  8 | 0x09,
+    [AV_LOG_VERBOSE/8] =  40 <<  8 | 0x02,
+    [AV_LOG_DEBUG  /8] =  34 <<  8 | 0x02,
+    [AV_LOG_TRACE  /8] =  34 <<  8 | 0x07,
+    [16+AV_CLASS_CATEGORY_NA              ] = 250 << 8 | 0x09,
+    [16+AV_CLASS_CATEGORY_INPUT           ] = 219 << 8 | 0x15,
+    [16+AV_CLASS_CATEGORY_OUTPUT          ] = 201 << 8 | 0x05,
+    [16+AV_CLASS_CATEGORY_MUXER           ] = 213 << 8 | 0x15,
+    [16+AV_CLASS_CATEGORY_DEMUXER         ] = 207 << 8 | 0x05,
+    [16+AV_CLASS_CATEGORY_ENCODER         ] =  51 << 8 | 0x16,
+    [16+AV_CLASS_CATEGORY_DECODER         ] =  39 << 8 | 0x06,
+    [16+AV_CLASS_CATEGORY_FILTER          ] = 155 << 8 | 0x12,
+    [16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 192 << 8 | 0x14,
+    [16+AV_CLASS_CATEGORY_SWSCALER        ] = 153 << 8 | 0x14,
+    [16+AV_CLASS_CATEGORY_SWRESAMPLER     ] = 147 << 8 | 0x14,
+    [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT ] = 213 << 8 | 0x15,
+    [16+AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT  ] = 207 << 8 | 0x05,
+    [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT ] = 213 << 8 | 0x15,
+    [16+AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT  ] = 207 << 8 | 0x05,
+    [16+AV_CLASS_CATEGORY_DEVICE_OUTPUT       ] = 213 << 8 | 0x15,
+    [16+AV_CLASS_CATEGORY_DEVICE_INPUT        ] = 207 << 8 | 0x05,
+};
+
+#endif
+static int use_color = -1;
+
+static void check_color_terminal(void)
+{
+#if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE
+    CONSOLE_SCREEN_BUFFER_INFO con_info;
+    con = GetStdHandle(STD_ERROR_HANDLE);
+    use_color = (con != INVALID_HANDLE_VALUE) && !getenv("NO_COLOR") &&
+                !getenv("AV_LOG_FORCE_NOCOLOR");
+    if (use_color) {
+        GetConsoleScreenBufferInfo(con, &con_info);
+        attr_orig  = con_info.wAttributes;
+        background = attr_orig & 0xF0;
+    }
+#elif HAVE_ISATTY
+    char *term = getenv("TERM");
+    use_color = !getenv("NO_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR") &&
+                (getenv("TERM") && isatty(2) || getenv("AV_LOG_FORCE_COLOR"));
+    if (   getenv("AV_LOG_FORCE_256COLOR")
+        || (term && strstr(term, "256color")))
+        use_color *= 256;
+#else
+    use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") &&
+               !getenv("AV_LOG_FORCE_NOCOLOR");
+#endif
+}
+
+static void colored_fputs(int level, int tint, const char *str)
+{
+    int local_use_color;
+    if (!*str)
+        return;
+
+    if (use_color < 0)
+        check_color_terminal();
+
+    if (level == AV_LOG_INFO/8) local_use_color = 0;
+    else                        local_use_color = use_color;
+
+#if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE
+    if (local_use_color)
+        SetConsoleTextAttribute(con, background | color[level]);
+    fputs(str, stderr);
+    if (local_use_color)
+        SetConsoleTextAttribute(con, attr_orig);
+#else
+    if (local_use_color == 1) {
+        fprintf(stderr,
+                "\033[%"PRIu32";3%"PRIu32"m%s\033[0m",
+                (color[level] >> 4) & 15,
+                color[level] & 15,
+                str);
+    } else if (tint && use_color == 256) {
+        fprintf(stderr,
+                "\033[48;5;%"PRIu32"m\033[38;5;%dm%s\033[0m",
+                (color[level] >> 16) & 0xff,
+                tint,
+                str);
+    } else if (local_use_color == 256) {
+        fprintf(stderr,
+                "\033[48;5;%"PRIu32"m\033[38;5;%"PRIu32"m%s\033[0m",
+                (color[level] >> 16) & 0xff,
+                (color[level] >> 8) & 0xff,
+                str);
+    } else
+        fputs(str, stderr);
+#endif
+
+}
+
+const char *av_default_item_name(void *ptr)
+{
+    return (*(AVClass **) ptr)->class_name;
+}
+
+AVClassCategory av_default_get_category(void *ptr)
+{
+    return (*(AVClass **) ptr)->category;
+}
+
+static void sanitize(uint8_t *line){
+    while(*line){
+        if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
+            *line='?';
+        line++;
+    }
+}
+
+static int get_category(void *ptr){
+    AVClass *avc = *(AVClass **) ptr;
+    if(    !avc
+        || (avc->version&0xFF)<100
+        ||  avc->version < (51 << 16 | 59 << 8)
+        ||  avc->category >= AV_CLASS_CATEGORY_NB) return AV_CLASS_CATEGORY_NA + 16;
+
+    if(avc->get_category)
+        return avc->get_category(ptr) + 16;
+
+    return avc->category + 16;
+}
+
+static const char *get_level_str(int level)
+{
+    switch (level) {
+    case AV_LOG_QUIET:
+        return "quiet";
+    case AV_LOG_DEBUG:
+        return "debug";
+    case AV_LOG_VERBOSE:
+        return "verbose";
+    case AV_LOG_INFO:
+        return "info";
+    case AV_LOG_WARNING:
+        return "warning";
+    case AV_LOG_ERROR:
+        return "error";
+    case AV_LOG_FATAL:
+        return "fatal";
+    case AV_LOG_PANIC:
+        return "panic";
+    default:
+        return "";
+    }
+}
+
+static void format_line(void *avcl, int level, const char *fmt, va_list vl,
+                        AVBPrint part[4], int *print_prefix, int type[2])
+{
+    AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
+    av_bprint_init(part+0, 0, AV_BPRINT_SIZE_AUTOMATIC);
+    av_bprint_init(part+1, 0, AV_BPRINT_SIZE_AUTOMATIC);
+    av_bprint_init(part+2, 0, AV_BPRINT_SIZE_AUTOMATIC);
+    av_bprint_init(part+3, 0, 65536);
+
+    if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16;
+    if (*print_prefix && avc) {
+        if (avc->parent_log_context_offset) {
+            AVClass** parent = *(AVClass ***) (((uint8_t *) avcl) +
+                                   avc->parent_log_context_offset);
+            if (parent && *parent) {
+                av_bprintf(part+0, "[%s @ %p] ",
+                         (*parent)->item_name(parent), parent);
+                if(type) type[0] = get_category(parent);
+            }
+        }
+        av_bprintf(part+1, "[%s @ %p] ",
+                 avc->item_name(avcl), avcl);
+        if(type) type[1] = get_category(avcl);
+    }
+
+    if (*print_prefix && (level > AV_LOG_QUIET) && (flags & AV_LOG_PRINT_LEVEL))
+        av_bprintf(part+2, "[%s] ", get_level_str(level));
+
+    av_vbprintf(part+3, fmt, vl);
+
+    if(*part[0].str || *part[1].str || *part[2].str || *part[3].str) {
+        char lastc = part[3].len && part[3].len <= part[3].size ? part[3].str[part[3].len - 1] : 0;
+        *print_prefix = lastc == '\n' || lastc == '\r';
+    }
+}
+
+void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
+                        char *line, int line_size, int *print_prefix)
+{
+    av_log_format_line2(ptr, level, fmt, vl, line, line_size, print_prefix);
+}
+
+int av_log_format_line2(void *ptr, int level, const char *fmt, va_list vl,
+                        char *line, int line_size, int *print_prefix)
+{
+    AVBPrint part[4];
+    int ret;
+
+    format_line(ptr, level, fmt, vl, part, print_prefix, NULL);
+    ret = snprintf(line, line_size, "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
+    av_bprint_finalize(part+3, NULL);
+    return ret;
+}
+
+void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
+{
+    static int print_prefix = 1;
+    static int count;
+    static char prev[LINE_SZ];
+    AVBPrint part[4];
+    char line[LINE_SZ];
+    static int is_atty;
+    int type[2];
+    unsigned tint = 0;
+
+    if (level >= 0) {
+        tint = level & 0xff00;
+        level &= 0xff;
+    }
+
+    if (level > av_log_level)
+        return;
+    ff_mutex_lock(&mutex);
+
+    format_line(ptr, level, fmt, vl, part, &print_prefix, type);
+    snprintf(line, sizeof(line), "%s%s%s%s", part[0].str, part[1].str, part[2].str, part[3].str);
+
+#if HAVE_ISATTY
+    if (!is_atty)
+        is_atty = isatty(2) ? 1 : -1;
+#endif
+
+    if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev) &&
+        *line && line[strlen(line) - 1] != '\r'){
+        count++;
+        if (is_atty == 1)
+            fprintf(stderr, "    Last message repeated %d times\r", count);
+        goto end;
+    }
+    if (count > 0) {
+        fprintf(stderr, "    Last message repeated %d times\n", count);
+        count = 0;
+    }
+    strcpy(prev, line);
+    sanitize(part[0].str);
+    colored_fputs(type[0], 0, part[0].str);
+    sanitize(part[1].str);
+    colored_fputs(type[1], 0, part[1].str);
+    sanitize(part[2].str);
+    colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[2].str);
+    sanitize(part[3].str);
+    colored_fputs(av_clip(level >> 3, 0, NB_LEVELS - 1), tint >> 8, part[3].str);
+
+#if CONFIG_VALGRIND_BACKTRACE
+    if (level <= BACKTRACE_LOGLEVEL)
+        VALGRIND_PRINTF_BACKTRACE("%s", "");
+#endif
+end:
+    av_bprint_finalize(part+3, NULL);
+    ff_mutex_unlock(&mutex);
+}
+
+static void (*av_log_callback)(void*, int, const char*, va_list) =
+    av_log_default_callback;
+
+void av_log(void* avcl, int level, const char *fmt, ...)
+{
+    AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
+    va_list vl;
+    va_start(vl, fmt);
+    if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
+        avc->log_level_offset_offset && level >= AV_LOG_FATAL)
+        level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
+    av_vlog(avcl, level, fmt, vl);
+    va_end(vl);
+}
+
+void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
+{
+    void (*log_callback)(void*, int, const char*, va_list) = av_log_callback;
+    if (log_callback)
+        log_callback(avcl, level, fmt, vl);
+}
+
+int av_log_get_level(void)
+{
+    return av_log_level;
+}
+
+void av_log_set_level(int level)
+{
+    av_log_level = level;
+}
+
+void av_log_set_flags(int arg)
+{
+    flags = arg;
+}
+
+int av_log_get_flags(void)
+{
+    return flags;
+}
+
+void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
+{
+    av_log_callback = callback;
+}
+
+static void missing_feature_sample(int sample, void *avc, const char *msg,
+                                   va_list argument_list)
+{
+    av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
+    av_log(avc, AV_LOG_WARNING, " is not implemented. Update your FFmpeg "
+           "version to the newest one from Git. If the problem still "
+           "occurs, it means that your file has a feature which has not "
+           "been implemented.\n");
+    if (sample)
+        av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
+               "of this file to ftp://upload.ffmpeg.org/incoming/ "
+               "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n");
+}
+
+void avpriv_request_sample(void *avc, const char *msg, ...)
+{
+    va_list argument_list;
+
+    va_start(argument_list, msg);
+    missing_feature_sample(1, avc, msg, argument_list);
+    va_end(argument_list);
+}
+
+void avpriv_report_missing_feature(void *avc, const char *msg, ...)
+{
+    va_list argument_list;
+
+    va_start(argument_list, msg);
+    missing_feature_sample(0, avc, msg, argument_list);
+    va_end(argument_list);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/log.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/log.h
new file mode 100644
index 000000000..d9554e609
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/log.h
@@ -0,0 +1,362 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_LOG_H
+#define AVUTIL_LOG_H
+
+#include <stdarg.h>
+#include "avutil.h"
+#include "attributes.h"
+#include "version.h"
+
+typedef enum {
+    AV_CLASS_CATEGORY_NA = 0,
+    AV_CLASS_CATEGORY_INPUT,
+    AV_CLASS_CATEGORY_OUTPUT,
+    AV_CLASS_CATEGORY_MUXER,
+    AV_CLASS_CATEGORY_DEMUXER,
+    AV_CLASS_CATEGORY_ENCODER,
+    AV_CLASS_CATEGORY_DECODER,
+    AV_CLASS_CATEGORY_FILTER,
+    AV_CLASS_CATEGORY_BITSTREAM_FILTER,
+    AV_CLASS_CATEGORY_SWSCALER,
+    AV_CLASS_CATEGORY_SWRESAMPLER,
+    AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT = 40,
+    AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
+    AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT,
+    AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
+    AV_CLASS_CATEGORY_DEVICE_OUTPUT,
+    AV_CLASS_CATEGORY_DEVICE_INPUT,
+    AV_CLASS_CATEGORY_NB  ///< not part of ABI/API
+}AVClassCategory;
+
+#define AV_IS_INPUT_DEVICE(category) \
+    (((category) == AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT) || \
+     ((category) == AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT) || \
+     ((category) == AV_CLASS_CATEGORY_DEVICE_INPUT))
+
+#define AV_IS_OUTPUT_DEVICE(category) \
+    (((category) == AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT) || \
+     ((category) == AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT) || \
+     ((category) == AV_CLASS_CATEGORY_DEVICE_OUTPUT))
+
+struct AVOptionRanges;
+
+/**
+ * Describe the class of an AVClass context structure. That is an
+ * arbitrary struct of which the first field is a pointer to an
+ * AVClass struct (e.g. AVCodecContext, AVFormatContext etc.).
+ */
+typedef struct AVClass {
+    /**
+     * The name of the class; usually it is the same name as the
+     * context structure type to which the AVClass is associated.
+     */
+    const char* class_name;
+
+    /**
+     * A pointer to a function which returns the name of a context
+     * instance ctx associated with the class.
+     */
+    const char* (*item_name)(void* ctx);
+
+    /**
+     * a pointer to the first option specified in the class if any or NULL
+     *
+     * @see av_set_default_options()
+     */
+    const struct AVOption *option;
+
+    /**
+     * LIBAVUTIL_VERSION with which this structure was created.
+     * This is used to allow fields to be added without requiring major
+     * version bumps everywhere.
+     */
+
+    int version;
+
+    /**
+     * Offset in the structure where log_level_offset is stored.
+     * 0 means there is no such variable
+     */
+    int log_level_offset_offset;
+
+    /**
+     * Offset in the structure where a pointer to the parent context for
+     * logging is stored. For example a decoder could pass its AVCodecContext
+     * to eval as such a parent context, which an av_log() implementation
+     * could then leverage to display the parent context.
+     * The offset can be NULL.
+     */
+    int parent_log_context_offset;
+
+    /**
+     * Return next AVOptions-enabled child or NULL
+     */
+    void* (*child_next)(void *obj, void *prev);
+
+    /**
+     * Return an AVClass corresponding to the next potential
+     * AVOptions-enabled child.
+     *
+     * The difference between child_next and this is that
+     * child_next iterates over _already existing_ objects, while
+     * child_class_next iterates over _all possible_ children.
+     */
+    const struct AVClass* (*child_class_next)(const struct AVClass *prev);
+
+    /**
+     * Category used for visualization (like color)
+     * This is only set if the category is equal for all objects using this class.
+     * available since version (51 << 16 | 56 << 8 | 100)
+     */
+    AVClassCategory category;
+
+    /**
+     * Callback to return the category.
+     * available since version (51 << 16 | 59 << 8 | 100)
+     */
+    AVClassCategory (*get_category)(void* ctx);
+
+    /**
+     * Callback to return the supported/allowed ranges.
+     * available since version (52.12)
+     */
+    int (*query_ranges)(struct AVOptionRanges **, void *obj, const char *key, int flags);
+} AVClass;
+
+/**
+ * @addtogroup lavu_log
+ *
+ * @{
+ *
+ * @defgroup lavu_log_constants Logging Constants
+ *
+ * @{
+ */
+
+/**
+ * Print no output.
+ */
+#define AV_LOG_QUIET    -8
+
+/**
+ * Something went really wrong and we will crash now.
+ */
+#define AV_LOG_PANIC     0
+
+/**
+ * Something went wrong and recovery is not possible.
+ * For example, no header was found for a format which depends
+ * on headers or an illegal combination of parameters is used.
+ */
+#define AV_LOG_FATAL     8
+
+/**
+ * Something went wrong and cannot losslessly be recovered.
+ * However, not all future data is affected.
+ */
+#define AV_LOG_ERROR    16
+
+/**
+ * Something somehow does not look correct. This may or may not
+ * lead to problems. An example would be the use of '-vstrict -2'.
+ */
+#define AV_LOG_WARNING  24
+
+/**
+ * Standard information.
+ */
+#define AV_LOG_INFO     32
+
+/**
+ * Detailed information.
+ */
+#define AV_LOG_VERBOSE  40
+
+/**
+ * Stuff which is only useful for libav* developers.
+ */
+#define AV_LOG_DEBUG    48
+
+/**
+ * Extremely verbose debugging, useful for libav* development.
+ */
+#define AV_LOG_TRACE    56
+
+#define AV_LOG_MAX_OFFSET (AV_LOG_TRACE - AV_LOG_QUIET)
+
+/**
+ * @}
+ */
+
+/**
+ * Sets additional colors for extended debugging sessions.
+ * @code
+   av_log(ctx, AV_LOG_DEBUG|AV_LOG_C(134), "Message in purple\n");
+   @endcode
+ * Requires 256color terminal support. Uses outside debugging is not
+ * recommended.
+ */
+#define AV_LOG_C(x) ((x) << 8)
+
+/**
+ * Send the specified message to the log if the level is less than or equal
+ * to the current av_log_level. By default, all logging messages are sent to
+ * stderr. This behavior can be altered by setting a different logging callback
+ * function.
+ * @see av_log_set_callback
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ *        pointer to an AVClass struct or NULL if general log.
+ * @param level The importance level of the message expressed using a @ref
+ *        lavu_log_constants "Logging Constant".
+ * @param fmt The format string (printf-compatible) that specifies how
+ *        subsequent arguments are converted to output.
+ */
+void av_log(void *avcl, int level, const char *fmt, ...) av_printf_format(3, 4);
+
+
+/**
+ * Send the specified message to the log if the level is less than or equal
+ * to the current av_log_level. By default, all logging messages are sent to
+ * stderr. This behavior can be altered by setting a different logging callback
+ * function.
+ * @see av_log_set_callback
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ *        pointer to an AVClass struct.
+ * @param level The importance level of the message expressed using a @ref
+ *        lavu_log_constants "Logging Constant".
+ * @param fmt The format string (printf-compatible) that specifies how
+ *        subsequent arguments are converted to output.
+ * @param vl The arguments referenced by the format string.
+ */
+void av_vlog(void *avcl, int level, const char *fmt, va_list vl);
+
+/**
+ * Get the current log level
+ *
+ * @see lavu_log_constants
+ *
+ * @return Current log level
+ */
+int av_log_get_level(void);
+
+/**
+ * Set the log level
+ *
+ * @see lavu_log_constants
+ *
+ * @param level Logging level
+ */
+void av_log_set_level(int level);
+
+/**
+ * Set the logging callback
+ *
+ * @note The callback must be thread safe, even if the application does not use
+ *       threads itself as some codecs are multithreaded.
+ *
+ * @see av_log_default_callback
+ *
+ * @param callback A logging function with a compatible signature.
+ */
+void av_log_set_callback(void (*callback)(void*, int, const char*, va_list));
+
+/**
+ * Default logging callback
+ *
+ * It prints the message to stderr, optionally colorizing it.
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ *        pointer to an AVClass struct.
+ * @param level The importance level of the message expressed using a @ref
+ *        lavu_log_constants "Logging Constant".
+ * @param fmt The format string (printf-compatible) that specifies how
+ *        subsequent arguments are converted to output.
+ * @param vl The arguments referenced by the format string.
+ */
+void av_log_default_callback(void *avcl, int level, const char *fmt,
+                             va_list vl);
+
+/**
+ * Return the context name
+ *
+ * @param  ctx The AVClass context
+ *
+ * @return The AVClass class_name
+ */
+const char* av_default_item_name(void* ctx);
+AVClassCategory av_default_get_category(void *ptr);
+
+/**
+ * Format a line of log the same way as the default callback.
+ * @param line          buffer to receive the formatted line
+ * @param line_size     size of the buffer
+ * @param print_prefix  used to store whether the prefix must be printed;
+ *                      must point to a persistent integer initially set to 1
+ */
+void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
+                        char *line, int line_size, int *print_prefix);
+
+/**
+ * Format a line of log the same way as the default callback.
+ * @param line          buffer to receive the formatted line;
+ *                      may be NULL if line_size is 0
+ * @param line_size     size of the buffer; at most line_size-1 characters will
+ *                      be written to the buffer, plus one null terminator
+ * @param print_prefix  used to store whether the prefix must be printed;
+ *                      must point to a persistent integer initially set to 1
+ * @return Returns a negative value if an error occurred, otherwise returns
+ *         the number of characters that would have been written for a
+ *         sufficiently large buffer, not including the terminating null
+ *         character. If the return value is not less than line_size, it means
+ *         that the log message was truncated to fit the buffer.
+ */
+int av_log_format_line2(void *ptr, int level, const char *fmt, va_list vl,
+                        char *line, int line_size, int *print_prefix);
+
+/**
+ * Skip repeated messages, this requires the user app to use av_log() instead of
+ * (f)printf as the 2 would otherwise interfere and lead to
+ * "Last message repeated x times" messages below (f)printf messages with some
+ * bad luck.
+ * Also to receive the last, "last repeated" line if any, the user app must
+ * call av_log(NULL, AV_LOG_QUIET, "%s", ""); at the end
+ */
+#define AV_LOG_SKIP_REPEATED 1
+
+/**
+ * Include the log severity in messages originating from codecs.
+ *
+ * Results in messages such as:
+ * [rawvideo @ 0xDEADBEEF] [error] encode did not produce valid pts
+ */
+#define AV_LOG_PRINT_LEVEL 2
+
+void av_log_set_flags(int arg);
+int av_log_get_flags(void);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_LOG_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/log2_tab.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/log2_tab.c
new file mode 100644
index 000000000..0dbf07d74
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/log2_tab.c
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2003-2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+const uint8_t ff_log2_tab[256]={
+        0,0,1,1,2,2,2,2,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,
+        5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+        6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+        6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+        7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+        7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+        7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+        7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/macros.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/macros.h
new file mode 100644
index 000000000..2007ee561
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/macros.h
@@ -0,0 +1,50 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu
+ * Utility Preprocessor macros
+ */
+
+#ifndef AVUTIL_MACROS_H
+#define AVUTIL_MACROS_H
+
+/**
+ * @addtogroup preproc_misc Preprocessor String Macros
+ *
+ * String manipulation macros
+ *
+ * @{
+ */
+
+#define AV_STRINGIFY(s)         AV_TOSTRING(s)
+#define AV_TOSTRING(s) #s
+
+#define AV_GLUE(a, b) a ## b
+#define AV_JOIN(a, b) AV_GLUE(a, b)
+
+/**
+ * @}
+ */
+
+#define AV_PRAGMA(s) _Pragma(#s)
+
+#define FFALIGN(x, a) (((x)+(a)-1)&~((a)-1))
+
+#endif /* AVUTIL_MACROS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mastering_display_metadata.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mastering_display_metadata.c
new file mode 100644
index 000000000..606934761
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mastering_display_metadata.c
@@ -0,0 +1,66 @@
+/**
+ * Copyright (c) 2016 Neil Birkbeck <neil.birkbeck@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "mastering_display_metadata.h"
+#include "mem.h"
+
+AVMasteringDisplayMetadata *av_mastering_display_metadata_alloc(void)
+{
+    return av_mallocz(sizeof(AVMasteringDisplayMetadata));
+}
+
+AVMasteringDisplayMetadata *av_mastering_display_metadata_create_side_data(AVFrame *frame)
+{
+    AVFrameSideData *side_data = av_frame_new_side_data(frame,
+                                                        AV_FRAME_DATA_MASTERING_DISPLAY_METADATA,
+                                                        sizeof(AVMasteringDisplayMetadata));
+    if (!side_data)
+        return NULL;
+
+    memset(side_data->data, 0, sizeof(AVMasteringDisplayMetadata));
+
+    return (AVMasteringDisplayMetadata *)side_data->data;
+}
+
+AVContentLightMetadata *av_content_light_metadata_alloc(size_t *size)
+{
+    AVContentLightMetadata *metadata = av_mallocz(sizeof(AVContentLightMetadata));
+
+    if (size)
+        *size = sizeof(*metadata);
+
+    return metadata;
+}
+
+AVContentLightMetadata *av_content_light_metadata_create_side_data(AVFrame *frame)
+{
+    AVFrameSideData *side_data = av_frame_new_side_data(frame,
+                                                        AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,
+                                                        sizeof(AVContentLightMetadata));
+    if (!side_data)
+        return NULL;
+
+    memset(side_data->data, 0, sizeof(AVContentLightMetadata));
+
+    return (AVContentLightMetadata *)side_data->data;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mastering_display_metadata.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mastering_display_metadata.h
new file mode 100644
index 000000000..c23b07c3c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mastering_display_metadata.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 2016 Neil Birkbeck <neil.birkbeck@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_MASTERING_DISPLAY_METADATA_H
+#define AVUTIL_MASTERING_DISPLAY_METADATA_H
+
+#include "frame.h"
+#include "rational.h"
+
+
+/**
+ * Mastering display metadata capable of representing the color volume of
+ * the display used to master the content (SMPTE 2086:2014).
+ *
+ * To be used as payload of a AVFrameSideData or AVPacketSideData with the
+ * appropriate type.
+ *
+ * @note The struct should be allocated with av_mastering_display_metadata_alloc()
+ *       and its size is not a part of the public ABI.
+ */
+typedef struct AVMasteringDisplayMetadata {
+    /**
+     * CIE 1931 xy chromaticity coords of color primaries (r, g, b order).
+     */
+    AVRational display_primaries[3][2];
+
+    /**
+     * CIE 1931 xy chromaticity coords of white point.
+     */
+    AVRational white_point[2];
+
+    /**
+     * Min luminance of mastering display (cd/m^2).
+     */
+    AVRational min_luminance;
+
+    /**
+     * Max luminance of mastering display (cd/m^2).
+     */
+    AVRational max_luminance;
+
+    /**
+     * Flag indicating whether the display primaries (and white point) are set.
+     */
+    int has_primaries;
+
+    /**
+     * Flag indicating whether the luminance (min_ and max_) have been set.
+     */
+    int has_luminance;
+
+} AVMasteringDisplayMetadata;
+
+/**
+ * Allocate an AVMasteringDisplayMetadata structure and set its fields to
+ * default values. The resulting struct can be freed using av_freep().
+ *
+ * @return An AVMasteringDisplayMetadata filled with default values or NULL
+ *         on failure.
+ */
+AVMasteringDisplayMetadata *av_mastering_display_metadata_alloc(void);
+
+/**
+ * Allocate a complete AVMasteringDisplayMetadata and add it to the frame.
+ *
+ * @param frame The frame which side data is added to.
+ *
+ * @return The AVMasteringDisplayMetadata structure to be filled by caller.
+ */
+AVMasteringDisplayMetadata *av_mastering_display_metadata_create_side_data(AVFrame *frame);
+
+/**
+ * Content light level needed by to transmit HDR over HDMI (CTA-861.3).
+ *
+ * To be used as payload of a AVFrameSideData or AVPacketSideData with the
+ * appropriate type.
+ *
+ * @note The struct should be allocated with av_content_light_metadata_alloc()
+ *       and its size is not a part of the public ABI.
+ */
+typedef struct AVContentLightMetadata {
+    /**
+     * Max content light level (cd/m^2).
+     */
+    unsigned MaxCLL;
+
+    /**
+     * Max average light level per frame (cd/m^2).
+     */
+    unsigned MaxFALL;
+} AVContentLightMetadata;
+
+/**
+ * Allocate an AVContentLightMetadata structure and set its fields to
+ * default values. The resulting struct can be freed using av_freep().
+ *
+ * @return An AVContentLightMetadata filled with default values or NULL
+ *         on failure.
+ */
+AVContentLightMetadata *av_content_light_metadata_alloc(size_t *size);
+
+/**
+ * Allocate a complete AVContentLightMetadata and add it to the frame.
+ *
+ * @param frame The frame which side data is added to.
+ *
+ * @return The AVContentLightMetadata structure to be filled by caller.
+ */
+AVContentLightMetadata *av_content_light_metadata_create_side_data(AVFrame *frame);
+
+#endif /* AVUTIL_MASTERING_DISPLAY_METADATA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mathematics.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mathematics.c
new file mode 100644
index 000000000..1bf044cdf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mathematics.c
@@ -0,0 +1,211 @@
+/*
+ * Copyright (c) 2005-2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * miscellaneous math routines and tables
+ */
+
+#include <stdint.h>
+#include <limits.h>
+
+#include "mathematics.h"
+#include "libavutil/intmath.h"
+#include "libavutil/common.h"
+#include "avassert.h"
+#include "version.h"
+
+/* Stein's binary GCD algorithm:
+ * https://en.wikipedia.org/wiki/Binary_GCD_algorithm */
+int64_t av_gcd(int64_t a, int64_t b) {
+    int za, zb, k;
+    int64_t u, v;
+    if (a == 0)
+        return b;
+    if (b == 0)
+        return a;
+    za = ff_ctzll(a);
+    zb = ff_ctzll(b);
+    k  = FFMIN(za, zb);
+    u = llabs(a >> za);
+    v = llabs(b >> zb);
+    while (u != v) {
+        if (u > v)
+            FFSWAP(int64_t, v, u);
+        v -= u;
+        v >>= ff_ctzll(v);
+    }
+    return (uint64_t)u << k;
+}
+
+int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd)
+{
+    int64_t r = 0;
+    av_assert2(c > 0);
+    av_assert2(b >=0);
+    av_assert2((unsigned)(rnd&~AV_ROUND_PASS_MINMAX)<=5 && (rnd&~AV_ROUND_PASS_MINMAX)!=4);
+
+    if (c <= 0 || b < 0 || !((unsigned)(rnd&~AV_ROUND_PASS_MINMAX)<=5 && (rnd&~AV_ROUND_PASS_MINMAX)!=4))
+        return INT64_MIN;
+
+    if (rnd & AV_ROUND_PASS_MINMAX) {
+        if (a == INT64_MIN || a == INT64_MAX)
+            return a;
+        rnd -= AV_ROUND_PASS_MINMAX;
+    }
+
+    if (a < 0)
+        return -(uint64_t)av_rescale_rnd(-FFMAX(a, -INT64_MAX), b, c, rnd ^ ((rnd >> 1) & 1));
+
+    if (rnd == AV_ROUND_NEAR_INF)
+        r = c / 2;
+    else if (rnd & 1)
+        r = c - 1;
+
+    if (b <= INT_MAX && c <= INT_MAX) {
+        if (a <= INT_MAX)
+            return (a * b + r) / c;
+        else {
+            int64_t ad = a / c;
+            int64_t a2 = (a % c * b + r) / c;
+            if (ad >= INT32_MAX && b && ad > (INT64_MAX - a2) / b)
+                return INT64_MIN;
+            return ad * b + a2;
+        }
+    } else {
+#if 1
+        uint64_t a0  = a & 0xFFFFFFFF;
+        uint64_t a1  = a >> 32;
+        uint64_t b0  = b & 0xFFFFFFFF;
+        uint64_t b1  = b >> 32;
+        uint64_t t1  = a0 * b1 + a1 * b0;
+        uint64_t t1a = t1 << 32;
+        int i;
+
+        a0  = a0 * b0 + t1a;
+        a1  = a1 * b1 + (t1 >> 32) + (a0 < t1a);
+        a0 += r;
+        a1 += a0 < r;
+
+        for (i = 63; i >= 0; i--) {
+            a1 += a1 + ((a0 >> i) & 1);
+            t1 += t1;
+            if (c <= a1) {
+                a1 -= c;
+                t1++;
+            }
+        }
+        if (t1 > INT64_MAX)
+            return INT64_MIN;
+        return t1;
+#else
+        /* reference code doing (a*b + r) / c, requires libavutil/integer.h */
+        AVInteger ai;
+        ai = av_mul_i(av_int2i(a), av_int2i(b));
+        ai = av_add_i(ai, av_int2i(r));
+
+        return av_i2int(av_div_i(ai, av_int2i(c)));
+#endif
+    }
+}
+
+int64_t av_rescale(int64_t a, int64_t b, int64_t c)
+{
+    return av_rescale_rnd(a, b, c, AV_ROUND_NEAR_INF);
+}
+
+int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq,
+                         enum AVRounding rnd)
+{
+    int64_t b = bq.num * (int64_t)cq.den;
+    int64_t c = cq.num * (int64_t)bq.den;
+    return av_rescale_rnd(a, b, c, rnd);
+}
+
+int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
+{
+    return av_rescale_q_rnd(a, bq, cq, AV_ROUND_NEAR_INF);
+}
+
+int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b)
+{
+    int64_t a = tb_a.num * (int64_t)tb_b.den;
+    int64_t b = tb_b.num * (int64_t)tb_a.den;
+    if ((FFABS(ts_a)|a|FFABS(ts_b)|b) <= INT_MAX)
+        return (ts_a*a > ts_b*b) - (ts_a*a < ts_b*b);
+    if (av_rescale_rnd(ts_a, a, b, AV_ROUND_DOWN) < ts_b)
+        return -1;
+    if (av_rescale_rnd(ts_b, b, a, AV_ROUND_DOWN) < ts_a)
+        return 1;
+    return 0;
+}
+
+int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod)
+{
+    int64_t c = (a - b) & (mod - 1);
+    if (c > (mod >> 1))
+        c -= mod;
+    return c;
+}
+
+int64_t av_rescale_delta(AVRational in_tb, int64_t in_ts,  AVRational fs_tb, int duration, int64_t *last, AVRational out_tb){
+    int64_t a, b, this;
+
+    av_assert0(in_ts != AV_NOPTS_VALUE);
+    av_assert0(duration >= 0);
+
+    if (*last == AV_NOPTS_VALUE || !duration || in_tb.num*(int64_t)out_tb.den <= out_tb.num*(int64_t)in_tb.den) {
+simple_round:
+        *last = av_rescale_q(in_ts, in_tb, fs_tb) + duration;
+        return av_rescale_q(in_ts, in_tb, out_tb);
+    }
+
+    a =  av_rescale_q_rnd(2*in_ts-1, in_tb, fs_tb, AV_ROUND_DOWN)   >>1;
+    b = (av_rescale_q_rnd(2*in_ts+1, in_tb, fs_tb, AV_ROUND_UP  )+1)>>1;
+    if (*last < 2*a - b || *last > 2*b - a)
+        goto simple_round;
+
+    this = av_clip64(*last, a, b);
+    *last = this + duration;
+
+    return av_rescale_q(this, fs_tb, out_tb);
+}
+
+int64_t av_add_stable(AVRational ts_tb, int64_t ts, AVRational inc_tb, int64_t inc)
+{
+    int64_t m, d;
+
+    if (inc != 1)
+        inc_tb = av_mul_q(inc_tb, (AVRational) {inc, 1});
+
+    m = inc_tb.num * (int64_t)ts_tb.den;
+    d = inc_tb.den * (int64_t)ts_tb.num;
+
+    if (m % d == 0)
+        return ts + m / d;
+    if (m < d)
+        return ts;
+
+    {
+        int64_t old = av_rescale_q(ts, ts_tb, inc_tb);
+        int64_t old_ts = av_rescale_q(old, inc_tb, ts_tb);
+        return av_rescale_q(old + 1, inc_tb, ts_tb) + (ts - old_ts);
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mathematics.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mathematics.h
new file mode 100644
index 000000000..54901800b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mathematics.h
@@ -0,0 +1,242 @@
+/*
+ * copyright (c) 2005-2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @addtogroup lavu_math
+ * Mathematical utilities for working with timestamp and time base.
+ */
+
+#ifndef AVUTIL_MATHEMATICS_H
+#define AVUTIL_MATHEMATICS_H
+
+#include <stdint.h>
+#include <math.h>
+#include "attributes.h"
+#include "rational.h"
+#include "intfloat.h"
+
+#ifndef M_E
+#define M_E            2.7182818284590452354   /* e */
+#endif
+#ifndef M_LN2
+#define M_LN2          0.69314718055994530942  /* log_e 2 */
+#endif
+#ifndef M_LN10
+#define M_LN10         2.30258509299404568402  /* log_e 10 */
+#endif
+#ifndef M_LOG2_10
+#define M_LOG2_10      3.32192809488736234787  /* log_2 10 */
+#endif
+#ifndef M_PHI
+#define M_PHI          1.61803398874989484820   /* phi / golden ratio */
+#endif
+#ifndef M_PI
+#define M_PI           3.14159265358979323846  /* pi */
+#endif
+#ifndef M_PI_2
+#define M_PI_2         1.57079632679489661923  /* pi/2 */
+#endif
+#ifndef M_SQRT1_2
+#define M_SQRT1_2      0.70710678118654752440  /* 1/sqrt(2) */
+#endif
+#ifndef M_SQRT2
+#define M_SQRT2        1.41421356237309504880  /* sqrt(2) */
+#endif
+#ifndef NAN
+#define NAN            av_int2float(0x7fc00000)
+#endif
+#ifndef INFINITY
+#define INFINITY       av_int2float(0x7f800000)
+#endif
+
+/**
+ * @addtogroup lavu_math
+ *
+ * @{
+ */
+
+/**
+ * Rounding methods.
+ */
+enum AVRounding {
+    AV_ROUND_ZERO     = 0, ///< Round toward zero.
+    AV_ROUND_INF      = 1, ///< Round away from zero.
+    AV_ROUND_DOWN     = 2, ///< Round toward -infinity.
+    AV_ROUND_UP       = 3, ///< Round toward +infinity.
+    AV_ROUND_NEAR_INF = 5, ///< Round to nearest and halfway cases away from zero.
+    /**
+     * Flag telling rescaling functions to pass `INT64_MIN`/`MAX` through
+     * unchanged, avoiding special cases for #AV_NOPTS_VALUE.
+     *
+     * Unlike other values of the enumeration AVRounding, this value is a
+     * bitmask that must be used in conjunction with another value of the
+     * enumeration through a bitwise OR, in order to set behavior for normal
+     * cases.
+     *
+     * @code{.c}
+     * av_rescale_rnd(3, 1, 2, AV_ROUND_UP | AV_ROUND_PASS_MINMAX);
+     * // Rescaling 3:
+     * //     Calculating 3 * 1 / 2
+     * //     3 / 2 is rounded up to 2
+     * //     => 2
+     *
+     * av_rescale_rnd(AV_NOPTS_VALUE, 1, 2, AV_ROUND_UP | AV_ROUND_PASS_MINMAX);
+     * // Rescaling AV_NOPTS_VALUE:
+     * //     AV_NOPTS_VALUE == INT64_MIN
+     * //     AV_NOPTS_VALUE is passed through
+     * //     => AV_NOPTS_VALUE
+     * @endcode
+     */
+    AV_ROUND_PASS_MINMAX = 8192,
+};
+
+/**
+ * Compute the greatest common divisor of two integer operands.
+ *
+ * @param a,b Operands
+ * @return GCD of a and b up to sign; if a >= 0 and b >= 0, return value is >= 0;
+ * if a == 0 and b == 0, returns 0.
+ */
+int64_t av_const av_gcd(int64_t a, int64_t b);
+
+/**
+ * Rescale a 64-bit integer with rounding to nearest.
+ *
+ * The operation is mathematically equivalent to `a * b / c`, but writing that
+ * directly can overflow.
+ *
+ * This function is equivalent to av_rescale_rnd() with #AV_ROUND_NEAR_INF.
+ *
+ * @see av_rescale_rnd(), av_rescale_q(), av_rescale_q_rnd()
+ */
+int64_t av_rescale(int64_t a, int64_t b, int64_t c) av_const;
+
+/**
+ * Rescale a 64-bit integer with specified rounding.
+ *
+ * The operation is mathematically equivalent to `a * b / c`, but writing that
+ * directly can overflow, and does not support different rounding methods.
+ *
+ * @see av_rescale(), av_rescale_q(), av_rescale_q_rnd()
+ */
+int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd) av_const;
+
+/**
+ * Rescale a 64-bit integer by 2 rational numbers.
+ *
+ * The operation is mathematically equivalent to `a * bq / cq`.
+ *
+ * This function is equivalent to av_rescale_q_rnd() with #AV_ROUND_NEAR_INF.
+ *
+ * @see av_rescale(), av_rescale_rnd(), av_rescale_q_rnd()
+ */
+int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const;
+
+/**
+ * Rescale a 64-bit integer by 2 rational numbers with specified rounding.
+ *
+ * The operation is mathematically equivalent to `a * bq / cq`.
+ *
+ * @see av_rescale(), av_rescale_rnd(), av_rescale_q()
+ */
+int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq,
+                         enum AVRounding rnd) av_const;
+
+/**
+ * Compare two timestamps each in its own time base.
+ *
+ * @return One of the following values:
+ *         - -1 if `ts_a` is before `ts_b`
+ *         - 1 if `ts_a` is after `ts_b`
+ *         - 0 if they represent the same position
+ *
+ * @warning
+ * The result of the function is undefined if one of the timestamps is outside
+ * the `int64_t` range when represented in the other's timebase.
+ */
+int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b);
+
+/**
+ * Compare the remainders of two integer operands divided by a common divisor.
+ *
+ * In other words, compare the least significant `log2(mod)` bits of integers
+ * `a` and `b`.
+ *
+ * @code{.c}
+ * av_compare_mod(0x11, 0x02, 0x10) < 0 // since 0x11 % 0x10  (0x1) < 0x02 % 0x10  (0x2)
+ * av_compare_mod(0x11, 0x02, 0x20) > 0 // since 0x11 % 0x20 (0x11) > 0x02 % 0x20 (0x02)
+ * @endcode
+ *
+ * @param a,b Operands
+ * @param mod Divisor; must be a power of 2
+ * @return
+ *         - a negative value if `a % mod < b % mod`
+ *         - a positive value if `a % mod > b % mod`
+ *         - zero             if `a % mod == b % mod`
+ */
+int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod);
+
+/**
+ * Rescale a timestamp while preserving known durations.
+ *
+ * This function is designed to be called per audio packet to scale the input
+ * timestamp to a different time base. Compared to a simple av_rescale_q()
+ * call, this function is robust against possible inconsistent frame durations.
+ *
+ * The `last` parameter is a state variable that must be preserved for all
+ * subsequent calls for the same stream. For the first call, `*last` should be
+ * initialized to #AV_NOPTS_VALUE.
+ *
+ * @param[in]     in_tb    Input time base
+ * @param[in]     in_ts    Input timestamp
+ * @param[in]     fs_tb    Duration time base; typically this is finer-grained
+ *                         (greater) than `in_tb` and `out_tb`
+ * @param[in]     duration Duration till the next call to this function (i.e.
+ *                         duration of the current packet/frame)
+ * @param[in,out] last     Pointer to a timestamp expressed in terms of
+ *                         `fs_tb`, acting as a state variable
+ * @param[in]     out_tb   Output timebase
+ * @return        Timestamp expressed in terms of `out_tb`
+ *
+ * @note In the context of this function, "duration" is in term of samples, not
+ *       seconds.
+ */
+int64_t av_rescale_delta(AVRational in_tb, int64_t in_ts,  AVRational fs_tb, int duration, int64_t *last, AVRational out_tb);
+
+/**
+ * Add a value to a timestamp.
+ *
+ * This function guarantees that when the same value is repeatly added that
+ * no accumulation of rounding errors occurs.
+ *
+ * @param[in] ts     Input timestamp
+ * @param[in] ts_tb  Input timestamp time base
+ * @param[in] inc    Value to be added
+ * @param[in] inc_tb Time base of `inc`
+ */
+int64_t av_add_stable(AVRational ts_tb, int64_t ts, AVRational inc_tb, int64_t inc);
+
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_MATHEMATICS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/md5.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/md5.c
new file mode 100644
index 000000000..31e69925a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/md5.c
@@ -0,0 +1,218 @@
+/*
+ * Copyright (C) 2006 Michael Niedermayer (michaelni@gmx.at)
+ * Copyright (C) 2003-2005 by Christopher R. Hertel (crh@ubiqx.mn.org)
+ *
+ * References:
+ *  IETF RFC 1321: The MD5 Message-Digest Algorithm
+ *       Ron Rivest. IETF, April, 1992
+ *
+ * based on http://ubiqx.org/libcifs/source/Auth/MD5.c
+ *          from Christopher R. Hertel (crh@ubiqx.mn.org)
+ * Simplified, cleaned and IMO redundant comments removed by Michael.
+ *
+ * If you use gcc, then version 4.1 or later and -fomit-frame-pointer is
+ * strongly recommended.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "bswap.h"
+#include "intreadwrite.h"
+#include "mem.h"
+#include "md5.h"
+
+typedef struct AVMD5 {
+    uint64_t len;
+    uint8_t  block[64];
+    uint32_t ABCD[4];
+} AVMD5;
+
+const int av_md5_size = sizeof(AVMD5);
+
+struct AVMD5 *av_md5_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVMD5));
+}
+
+static const uint8_t S[4][4] = {
+    { 7, 12, 17, 22 },  /* round 1 */
+    { 5,  9, 14, 20 },  /* round 2 */
+    { 4, 11, 16, 23 },  /* round 3 */
+    { 6, 10, 15, 21 }   /* round 4 */
+};
+
+static const uint32_t T[64] = { // T[i]= fabs(sin(i+1)<<32)
+    0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,   /* round 1 */
+    0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
+    0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
+    0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
+
+    0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,   /* round 2 */
+    0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
+    0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
+    0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
+
+    0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,   /* round 3 */
+    0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
+    0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05,
+    0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
+
+    0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,   /* round 4 */
+    0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
+    0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
+    0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391,
+};
+
+#define CORE(i, a, b, c, d)                                             \
+    do {                                                                \
+        t  = S[i >> 4][i & 3];                                          \
+        a += T[i];                                                      \
+                                                                        \
+        if (i < 32) {                                                   \
+            if (i < 16)                                                 \
+                a += (d ^ (b & (c ^ d)))  + AV_RL32(X+(       i  & 15));\
+            else                                                        \
+                a += ((d & b) | (~d & c)) + AV_RL32(X+((1 + 5*i) & 15));\
+        } else {                                                        \
+            if (i < 48)                                                 \
+                a += (b ^ c ^ d)          + AV_RL32(X+((5 + 3*i) & 15));\
+            else                                                        \
+                a += (c ^ (b | ~d))       + AV_RL32(X+((    7*i) & 15));\
+        }                                                               \
+        a = b + (a << t | a >> (32 - t));                               \
+    } while (0)
+
+static void body(uint32_t ABCD[4], const uint8_t *src, int nblocks)
+{
+    int i av_unused;
+    int n;
+    const uint32_t *X;
+    uint32_t a, b, c, d, t;
+
+    for (n = 0; n < nblocks; n++) {
+        a = ABCD[3];
+        b = ABCD[2];
+        c = ABCD[1];
+        d = ABCD[0];
+
+        X = (const uint32_t *)src + n * 16;
+
+#if CONFIG_SMALL
+        for (i = 0; i < 64; i++) {
+            CORE(i, a, b, c, d);
+            t = d;
+            d = c;
+            c = b;
+            b = a;
+            a = t;
+        }
+#else
+#define CORE2(i)                                                        \
+        CORE(i, a, b, c, d); CORE((i + 1), d, a, b, c);                 \
+        CORE((i + 2), c, d, a, b); CORE((i + 3), b, c, d, a)
+#define CORE4(i) CORE2(i); CORE2((i + 4)); CORE2((i + 8)); CORE2((i + 12))
+        CORE4(0);
+        CORE4(16);
+        CORE4(32);
+        CORE4(48);
+#endif
+
+        ABCD[0] += d;
+        ABCD[1] += c;
+        ABCD[2] += b;
+        ABCD[3] += a;
+    }
+}
+
+void av_md5_init(AVMD5 *ctx)
+{
+    ctx->len     = 0;
+
+    ctx->ABCD[0] = 0x10325476;
+    ctx->ABCD[1] = 0x98badcfe;
+    ctx->ABCD[2] = 0xefcdab89;
+    ctx->ABCD[3] = 0x67452301;
+}
+
+#if FF_API_CRYPTO_SIZE_T
+void av_md5_update(AVMD5 *ctx, const uint8_t *src, int len)
+#else
+void av_md5_update(AVMD5 *ctx, const uint8_t *src, size_t len)
+#endif
+{
+    const uint8_t *end;
+    int j;
+
+    j         = ctx->len & 63;
+    ctx->len += len;
+
+    if (j) {
+        int cnt = FFMIN(len, 64 - j);
+        memcpy(ctx->block + j, src, cnt);
+        src += cnt;
+        len -= cnt;
+        if (j + cnt < 64)
+            return;
+        body(ctx->ABCD, ctx->block, 1);
+    }
+
+    end = src + (len & ~63);
+    if (!HAVE_FAST_UNALIGNED && ((intptr_t)src & 3)) {
+       while (src < end) {
+           memcpy(ctx->block, src, 64);
+           body(ctx->ABCD, ctx->block, 1);
+           src += 64;
+        }
+    } else {
+        int nblocks = len / 64;
+        body(ctx->ABCD, src, nblocks);
+        src = end;
+    }
+    len &= 63;
+    if (len > 0)
+        memcpy(ctx->block, src, len);
+}
+
+void av_md5_final(AVMD5 *ctx, uint8_t *dst)
+{
+    int i;
+    uint64_t finalcount = av_le2ne64(ctx->len << 3);
+
+    av_md5_update(ctx, "\200", 1);
+    while ((ctx->len & 63) != 56)
+        av_md5_update(ctx, "", 1);
+
+    av_md5_update(ctx, (uint8_t *) &finalcount, 8);
+
+    for (i = 0; i < 4; i++)
+        AV_WL32(dst + 4 * i, ctx->ABCD[3 - i]);
+}
+
+#if FF_API_CRYPTO_SIZE_T
+void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len)
+#else
+void av_md5_sum(uint8_t *dst, const uint8_t *src, size_t len)
+#endif
+{
+    AVMD5 ctx;
+
+    av_md5_init(&ctx);
+    av_md5_update(&ctx, src, len);
+    av_md5_final(&ctx, dst);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/md5.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/md5.h
new file mode 100644
index 000000000..ca72ccbf8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/md5.h
@@ -0,0 +1,98 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu_md5
+ * Public header for MD5 hash function implementation.
+ */
+
+#ifndef AVUTIL_MD5_H
+#define AVUTIL_MD5_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "attributes.h"
+#include "version.h"
+
+/**
+ * @defgroup lavu_md5 MD5
+ * @ingroup lavu_hash
+ * MD5 hash function implementation.
+ *
+ * @{
+ */
+
+extern const int av_md5_size;
+
+struct AVMD5;
+
+/**
+ * Allocate an AVMD5 context.
+ */
+struct AVMD5 *av_md5_alloc(void);
+
+/**
+ * Initialize MD5 hashing.
+ *
+ * @param ctx pointer to the function context (of size av_md5_size)
+ */
+void av_md5_init(struct AVMD5 *ctx);
+
+/**
+ * Update hash value.
+ *
+ * @param ctx hash function context
+ * @param src input data to update hash with
+ * @param len input data length
+ */
+#if FF_API_CRYPTO_SIZE_T
+void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, int len);
+#else
+void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, size_t len);
+#endif
+
+/**
+ * Finish hashing and output digest value.
+ *
+ * @param ctx hash function context
+ * @param dst buffer where output digest value is stored
+ */
+void av_md5_final(struct AVMD5 *ctx, uint8_t *dst);
+
+/**
+ * Hash an array of data.
+ *
+ * @param dst The output buffer to write the digest into
+ * @param src The data to hash
+ * @param len The length of the data, in bytes
+ */
+#if FF_API_CRYPTO_SIZE_T
+void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len);
+#else
+void av_md5_sum(uint8_t *dst, const uint8_t *src, size_t len);
+#endif
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_MD5_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mem.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mem.c
new file mode 100644
index 000000000..88fe09b17
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mem.c
@@ -0,0 +1,508 @@
+/*
+ * default memory allocator for libavutil
+ * Copyright (c) 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * default memory allocator for libavutil
+ */
+
+#define _XOPEN_SOURCE 600
+
+#include "config.h"
+
+#include <limits.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_MALLOC_H
+#include <malloc.h>
+#endif
+
+#include "avassert.h"
+#include "avutil.h"
+#include "common.h"
+#include "dynarray.h"
+#include "intreadwrite.h"
+#include "mem.h"
+
+#ifdef MALLOC_PREFIX
+
+#define malloc         AV_JOIN(MALLOC_PREFIX, malloc)
+#define memalign       AV_JOIN(MALLOC_PREFIX, memalign)
+#define posix_memalign AV_JOIN(MALLOC_PREFIX, posix_memalign)
+#define realloc        AV_JOIN(MALLOC_PREFIX, realloc)
+#define free           AV_JOIN(MALLOC_PREFIX, free)
+
+void *malloc(size_t size);
+void *memalign(size_t align, size_t size);
+int   posix_memalign(void **ptr, size_t align, size_t size);
+void *realloc(void *ptr, size_t size);
+void  free(void *ptr);
+
+#endif /* MALLOC_PREFIX */
+
+#include "mem_internal.h"
+
+#define ALIGN (HAVE_AVX512 ? 64 : (HAVE_AVX ? 32 : 16))
+
+/* NOTE: if you want to override these functions with your own
+ * implementations (not recommended) you have to link libav* as
+ * dynamic libraries and remove -Wl,-Bsymbolic from the linker flags.
+ * Note that this will cost performance. */
+
+static size_t max_alloc_size= INT_MAX;
+
+void av_max_alloc(size_t max){
+    max_alloc_size = max;
+}
+
+void *av_malloc(size_t size)
+{
+    void *ptr = NULL;
+
+    /* let's disallow possibly ambiguous cases */
+    if (size > (max_alloc_size - 32))
+        return NULL;
+
+#if HAVE_POSIX_MEMALIGN
+    if (size) //OS X on SDK 10.6 has a broken posix_memalign implementation
+    if (posix_memalign(&ptr, ALIGN, size))
+        ptr = NULL;
+#elif HAVE_ALIGNED_MALLOC
+    ptr = _aligned_malloc(size, ALIGN);
+#elif HAVE_MEMALIGN
+#ifndef __DJGPP__
+    ptr = memalign(ALIGN, size);
+#else
+    ptr = memalign(size, ALIGN);
+#endif
+    /* Why 64?
+     * Indeed, we should align it:
+     *   on  4 for 386
+     *   on 16 for 486
+     *   on 32 for 586, PPro - K6-III
+     *   on 64 for K7 (maybe for P3 too).
+     * Because L1 and L2 caches are aligned on those values.
+     * But I don't want to code such logic here!
+     */
+    /* Why 32?
+     * For AVX ASM. SSE / NEON needs only 16.
+     * Why not larger? Because I did not see a difference in benchmarks ...
+     */
+    /* benchmarks with P3
+     * memalign(64) + 1          3071, 3051, 3032
+     * memalign(64) + 2          3051, 3032, 3041
+     * memalign(64) + 4          2911, 2896, 2915
+     * memalign(64) + 8          2545, 2554, 2550
+     * memalign(64) + 16         2543, 2572, 2563
+     * memalign(64) + 32         2546, 2545, 2571
+     * memalign(64) + 64         2570, 2533, 2558
+     *
+     * BTW, malloc seems to do 8-byte alignment by default here.
+     */
+#else
+    ptr = malloc(size);
+#endif
+    if(!ptr && !size) {
+        size = 1;
+        ptr= av_malloc(1);
+    }
+#if CONFIG_MEMORY_POISONING
+    if (ptr)
+        memset(ptr, FF_MEMORY_POISON, size);
+#endif
+    return ptr;
+}
+
+void *av_realloc(void *ptr, size_t size)
+{
+    /* let's disallow possibly ambiguous cases */
+    if (size > (max_alloc_size - 32))
+        return NULL;
+
+#if HAVE_ALIGNED_MALLOC
+    return _aligned_realloc(ptr, size + !size, ALIGN);
+#else
+    return realloc(ptr, size + !size);
+#endif
+}
+
+void *av_realloc_f(void *ptr, size_t nelem, size_t elsize)
+{
+    size_t size;
+    void *r;
+
+    if (av_size_mult(elsize, nelem, &size)) {
+        av_free(ptr);
+        return NULL;
+    }
+    r = av_realloc(ptr, size);
+    if (!r)
+        av_free(ptr);
+    return r;
+}
+
+int av_reallocp(void *ptr, size_t size)
+{
+    void *val;
+
+    if (!size) {
+        av_freep(ptr);
+        return 0;
+    }
+
+    memcpy(&val, ptr, sizeof(val));
+    val = av_realloc(val, size);
+
+    if (!val) {
+        av_freep(ptr);
+        return AVERROR(ENOMEM);
+    }
+
+    memcpy(ptr, &val, sizeof(val));
+    return 0;
+}
+
+void *av_malloc_array(size_t nmemb, size_t size)
+{
+    if (!size || nmemb >= INT_MAX / size)
+        return NULL;
+    return av_malloc(nmemb * size);
+}
+
+void *av_mallocz_array(size_t nmemb, size_t size)
+{
+    if (!size || nmemb >= INT_MAX / size)
+        return NULL;
+    return av_mallocz(nmemb * size);
+}
+
+void *av_realloc_array(void *ptr, size_t nmemb, size_t size)
+{
+    if (!size || nmemb >= INT_MAX / size)
+        return NULL;
+    return av_realloc(ptr, nmemb * size);
+}
+
+int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
+{
+    void *val;
+
+    memcpy(&val, ptr, sizeof(val));
+    val = av_realloc_f(val, nmemb, size);
+    memcpy(ptr, &val, sizeof(val));
+    if (!val && nmemb && size)
+        return AVERROR(ENOMEM);
+
+    return 0;
+}
+
+void av_free(void *ptr)
+{
+#if HAVE_ALIGNED_MALLOC
+    _aligned_free(ptr);
+#else
+    free(ptr);
+#endif
+}
+
+void av_freep(void *arg)
+{
+    void *val;
+
+    memcpy(&val, arg, sizeof(val));
+    memcpy(arg, &(void *){ NULL }, sizeof(val));
+    av_free(val);
+}
+
+void *av_mallocz(size_t size)
+{
+    void *ptr = av_malloc(size);
+    if (ptr)
+        memset(ptr, 0, size);
+    return ptr;
+}
+
+void *av_calloc(size_t nmemb, size_t size)
+{
+    if (size <= 0 || nmemb >= INT_MAX / size)
+        return NULL;
+    return av_mallocz(nmemb * size);
+}
+
+char *av_strdup(const char *s)
+{
+    char *ptr = NULL;
+    if (s) {
+        size_t len = strlen(s) + 1;
+        ptr = av_realloc(NULL, len);
+        if (ptr)
+            memcpy(ptr, s, len);
+    }
+    return ptr;
+}
+
+char *av_strndup(const char *s, size_t len)
+{
+    char *ret = NULL, *end;
+
+    if (!s)
+        return NULL;
+
+    end = memchr(s, 0, len);
+    if (end)
+        len = end - s;
+
+    ret = av_realloc(NULL, len + 1);
+    if (!ret)
+        return NULL;
+
+    memcpy(ret, s, len);
+    ret[len] = 0;
+    return ret;
+}
+
+void *av_memdup(const void *p, size_t size)
+{
+    void *ptr = NULL;
+    if (p) {
+        ptr = av_malloc(size);
+        if (ptr)
+            memcpy(ptr, p, size);
+    }
+    return ptr;
+}
+
+int av_dynarray_add_nofree(void *tab_ptr, int *nb_ptr, void *elem)
+{
+    void **tab;
+    memcpy(&tab, tab_ptr, sizeof(tab));
+
+    FF_DYNARRAY_ADD(INT_MAX, sizeof(*tab), tab, *nb_ptr, {
+        tab[*nb_ptr] = elem;
+        memcpy(tab_ptr, &tab, sizeof(tab));
+    }, {
+        return AVERROR(ENOMEM);
+    });
+    return 0;
+}
+
+void av_dynarray_add(void *tab_ptr, int *nb_ptr, void *elem)
+{
+    void **tab;
+    memcpy(&tab, tab_ptr, sizeof(tab));
+
+    FF_DYNARRAY_ADD(INT_MAX, sizeof(*tab), tab, *nb_ptr, {
+        tab[*nb_ptr] = elem;
+        memcpy(tab_ptr, &tab, sizeof(tab));
+    }, {
+        *nb_ptr = 0;
+        av_freep(tab_ptr);
+    });
+}
+
+void *av_dynarray2_add(void **tab_ptr, int *nb_ptr, size_t elem_size,
+                       const uint8_t *elem_data)
+{
+    uint8_t *tab_elem_data = NULL;
+
+    FF_DYNARRAY_ADD(INT_MAX, elem_size, *tab_ptr, *nb_ptr, {
+        tab_elem_data = (uint8_t *)*tab_ptr + (*nb_ptr) * elem_size;
+        if (elem_data)
+            memcpy(tab_elem_data, elem_data, elem_size);
+        else if (CONFIG_MEMORY_POISONING)
+            memset(tab_elem_data, FF_MEMORY_POISON, elem_size);
+    }, {
+        av_freep(tab_ptr);
+        *nb_ptr = 0;
+    });
+    return tab_elem_data;
+}
+
+static void fill16(uint8_t *dst, int len)
+{
+    uint32_t v = AV_RN16(dst - 2);
+
+    v |= v << 16;
+
+    while (len >= 4) {
+        AV_WN32(dst, v);
+        dst += 4;
+        len -= 4;
+    }
+
+    while (len--) {
+        *dst = dst[-2];
+        dst++;
+    }
+}
+
+static void fill24(uint8_t *dst, int len)
+{
+#if HAVE_BIGENDIAN
+    uint32_t v = AV_RB24(dst - 3);
+    uint32_t a = v << 8  | v >> 16;
+    uint32_t b = v << 16 | v >> 8;
+    uint32_t c = v << 24 | v;
+#else
+    uint32_t v = AV_RL24(dst - 3);
+    uint32_t a = v       | v << 24;
+    uint32_t b = v >> 8  | v << 16;
+    uint32_t c = v >> 16 | v << 8;
+#endif
+
+    while (len >= 12) {
+        AV_WN32(dst,     a);
+        AV_WN32(dst + 4, b);
+        AV_WN32(dst + 8, c);
+        dst += 12;
+        len -= 12;
+    }
+
+    if (len >= 4) {
+        AV_WN32(dst, a);
+        dst += 4;
+        len -= 4;
+    }
+
+    if (len >= 4) {
+        AV_WN32(dst, b);
+        dst += 4;
+        len -= 4;
+    }
+
+    while (len--) {
+        *dst = dst[-3];
+        dst++;
+    }
+}
+
+static void fill32(uint8_t *dst, int len)
+{
+    uint32_t v = AV_RN32(dst - 4);
+
+#if HAVE_FAST_64BIT
+    uint64_t v2= v + ((uint64_t)v<<32);
+    while (len >= 32) {
+        AV_WN64(dst   , v2);
+        AV_WN64(dst+ 8, v2);
+        AV_WN64(dst+16, v2);
+        AV_WN64(dst+24, v2);
+        dst += 32;
+        len -= 32;
+    }
+#endif
+
+    while (len >= 4) {
+        AV_WN32(dst, v);
+        dst += 4;
+        len -= 4;
+    }
+
+    while (len--) {
+        *dst = dst[-4];
+        dst++;
+    }
+}
+
+void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
+{
+    const uint8_t *src = &dst[-back];
+    if (!back)
+        return;
+
+    if (back == 1) {
+        memset(dst, *src, cnt);
+    } else if (back == 2) {
+        fill16(dst, cnt);
+    } else if (back == 3) {
+        fill24(dst, cnt);
+    } else if (back == 4) {
+        fill32(dst, cnt);
+    } else {
+        if (cnt >= 16) {
+            int blocklen = back;
+            while (cnt > blocklen) {
+                memcpy(dst, src, blocklen);
+                dst       += blocklen;
+                cnt       -= blocklen;
+                blocklen <<= 1;
+            }
+            memcpy(dst, src, cnt);
+            return;
+        }
+        if (cnt >= 8) {
+            AV_COPY32U(dst,     src);
+            AV_COPY32U(dst + 4, src + 4);
+            src += 8;
+            dst += 8;
+            cnt -= 8;
+        }
+        if (cnt >= 4) {
+            AV_COPY32U(dst, src);
+            src += 4;
+            dst += 4;
+            cnt -= 4;
+        }
+        if (cnt >= 2) {
+            AV_COPY16U(dst, src);
+            src += 2;
+            dst += 2;
+            cnt -= 2;
+        }
+        if (cnt)
+            *dst = *src;
+    }
+}
+
+void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
+{
+    if (min_size <= *size)
+        return ptr;
+
+    if (min_size > max_alloc_size - 32) {
+        *size = 0;
+        return NULL;
+    }
+
+    min_size = FFMIN(max_alloc_size - 32, FFMAX(min_size + min_size / 16 + 32, min_size));
+
+    ptr = av_realloc(ptr, min_size);
+    /* we could set this to the unmodified min_size but this is safer
+     * if the user lost the ptr and uses NULL now
+     */
+    if (!ptr)
+        min_size = 0;
+
+    *size = min_size;
+
+    return ptr;
+}
+
+void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
+{
+    ff_fast_malloc(ptr, size, min_size, 0);
+}
+
+void av_fast_mallocz(void *ptr, unsigned int *size, size_t min_size)
+{
+    ff_fast_malloc(ptr, size, min_size, 1);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mem.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mem.h
new file mode 100644
index 000000000..5fb1a02dd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mem.h
@@ -0,0 +1,700 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu_mem
+ * Memory handling functions
+ */
+
+#ifndef AVUTIL_MEM_H
+#define AVUTIL_MEM_H
+
+#include <limits.h>
+#include <stdint.h>
+
+#include "attributes.h"
+#include "error.h"
+#include "avutil.h"
+
+/**
+ * @addtogroup lavu_mem
+ * Utilities for manipulating memory.
+ *
+ * FFmpeg has several applications of memory that are not required of a typical
+ * program. For example, the computing-heavy components like video decoding and
+ * encoding can be sped up significantly through the use of aligned memory.
+ *
+ * However, for each of FFmpeg's applications of memory, there might not be a
+ * recognized or standardized API for that specific use. Memory alignment, for
+ * instance, varies wildly depending on operating systems, architectures, and
+ * compilers. Hence, this component of @ref libavutil is created to make
+ * dealing with memory consistently possible on all platforms.
+ *
+ * @{
+ *
+ * @defgroup lavu_mem_macros Alignment Macros
+ * Helper macros for declaring aligned variables.
+ * @{
+ */
+
+/**
+ * @def DECLARE_ALIGNED(n,t,v)
+ * Declare a variable that is aligned in memory.
+ *
+ * @code{.c}
+ * DECLARE_ALIGNED(16, uint16_t, aligned_int) = 42;
+ * DECLARE_ALIGNED(32, uint8_t, aligned_array)[128];
+ *
+ * // The default-alignment equivalent would be
+ * uint16_t aligned_int = 42;
+ * uint8_t aligned_array[128];
+ * @endcode
+ *
+ * @param n Minimum alignment in bytes
+ * @param t Type of the variable (or array element)
+ * @param v Name of the variable
+ */
+
+/**
+ * @def DECLARE_ASM_ALIGNED(n,t,v)
+ * Declare an aligned variable appropriate for use in inline assembly code.
+ *
+ * @code{.c}
+ * DECLARE_ASM_ALIGNED(16, uint64_t, pw_08) = UINT64_C(0x0008000800080008);
+ * @endcode
+ *
+ * @param n Minimum alignment in bytes
+ * @param t Type of the variable (or array element)
+ * @param v Name of the variable
+ */
+
+/**
+ * @def DECLARE_ASM_CONST(n,t,v)
+ * Declare a static constant aligned variable appropriate for use in inline
+ * assembly code.
+ *
+ * @code{.c}
+ * DECLARE_ASM_CONST(16, uint64_t, pw_08) = UINT64_C(0x0008000800080008);
+ * @endcode
+ *
+ * @param n Minimum alignment in bytes
+ * @param t Type of the variable (or array element)
+ * @param v Name of the variable
+ */
+
+#if defined(__INTEL_COMPILER) && __INTEL_COMPILER < 1110 || defined(__SUNPRO_C)
+    #define DECLARE_ALIGNED(n,t,v)      t __attribute__ ((aligned (n))) v
+    #define DECLARE_ASM_ALIGNED(n,t,v)  t __attribute__ ((aligned (n))) v
+    #define DECLARE_ASM_CONST(n,t,v)    const t __attribute__ ((aligned (n))) v
+#elif defined(__DJGPP__)
+    #define DECLARE_ALIGNED(n,t,v)      t __attribute__ ((aligned (FFMIN(n, 16)))) v
+    #define DECLARE_ASM_ALIGNED(n,t,v)  t av_used __attribute__ ((aligned (FFMIN(n, 16)))) v
+    #define DECLARE_ASM_CONST(n,t,v)    static const t av_used __attribute__ ((aligned (FFMIN(n, 16)))) v
+#elif defined(__GNUC__) || defined(__clang__)
+    #define DECLARE_ALIGNED(n,t,v)      t __attribute__ ((aligned (n))) v
+    #define DECLARE_ASM_ALIGNED(n,t,v)  t av_used __attribute__ ((aligned (n))) v
+    #define DECLARE_ASM_CONST(n,t,v)    static const t av_used __attribute__ ((aligned (n))) v
+#elif defined(_MSC_VER)
+    #define DECLARE_ALIGNED(n,t,v)      __declspec(align(n)) t v
+    #define DECLARE_ASM_ALIGNED(n,t,v)  __declspec(align(n)) t v
+    #define DECLARE_ASM_CONST(n,t,v)    __declspec(align(n)) static const t v
+#else
+    #define DECLARE_ALIGNED(n,t,v)      t v
+    #define DECLARE_ASM_ALIGNED(n,t,v)  t v
+    #define DECLARE_ASM_CONST(n,t,v)    static const t v
+#endif
+
+/**
+ * @}
+ */
+
+/**
+ * @defgroup lavu_mem_attrs Function Attributes
+ * Function attributes applicable to memory handling functions.
+ *
+ * These function attributes can help compilers emit more useful warnings, or
+ * generate better code.
+ * @{
+ */
+
+/**
+ * @def av_malloc_attrib
+ * Function attribute denoting a malloc-like function.
+ *
+ * @see <a href="https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-g_t_0040code_007bmalloc_007d-function-attribute-3251">Function attribute `malloc` in GCC's documentation</a>
+ */
+
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+    #define av_malloc_attrib __attribute__((__malloc__))
+#else
+    #define av_malloc_attrib
+#endif
+
+/**
+ * @def av_alloc_size(...)
+ * Function attribute used on a function that allocates memory, whose size is
+ * given by the specified parameter(s).
+ *
+ * @code{.c}
+ * void *av_malloc(size_t size) av_alloc_size(1);
+ * void *av_calloc(size_t nmemb, size_t size) av_alloc_size(1, 2);
+ * @endcode
+ *
+ * @param ... One or two parameter indexes, separated by a comma
+ *
+ * @see <a href="https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-g_t_0040code_007balloc_005fsize_007d-function-attribute-3220">Function attribute `alloc_size` in GCC's documentation</a>
+ */
+
+#if AV_GCC_VERSION_AT_LEAST(4,3)
+    #define av_alloc_size(...) __attribute__((alloc_size(__VA_ARGS__)))
+#else
+    #define av_alloc_size(...)
+#endif
+
+/**
+ * @}
+ */
+
+/**
+ * @defgroup lavu_mem_funcs Heap Management
+ * Functions responsible for allocating, freeing, and copying memory.
+ *
+ * All memory allocation functions have a built-in upper limit of `INT_MAX`
+ * bytes. This may be changed with av_max_alloc(), although exercise extreme
+ * caution when doing so.
+ *
+ * @{
+ */
+
+/**
+ * Allocate a memory block with alignment suitable for all memory accesses
+ * (including vectors if available on the CPU).
+ *
+ * @param size Size in bytes for the memory block to be allocated
+ * @return Pointer to the allocated block, or `NULL` if the block cannot
+ *         be allocated
+ * @see av_mallocz()
+ */
+void *av_malloc(size_t size) av_malloc_attrib av_alloc_size(1);
+
+/**
+ * Allocate a memory block with alignment suitable for all memory accesses
+ * (including vectors if available on the CPU) and zero all the bytes of the
+ * block.
+ *
+ * @param size Size in bytes for the memory block to be allocated
+ * @return Pointer to the allocated block, or `NULL` if it cannot be allocated
+ * @see av_malloc()
+ */
+void *av_mallocz(size_t size) av_malloc_attrib av_alloc_size(1);
+
+/**
+ * Allocate a memory block for an array with av_malloc().
+ *
+ * The allocated memory will have size `size * nmemb` bytes.
+ *
+ * @param nmemb Number of element
+ * @param size  Size of a single element
+ * @return Pointer to the allocated block, or `NULL` if the block cannot
+ *         be allocated
+ * @see av_malloc()
+ */
+av_alloc_size(1, 2) void *av_malloc_array(size_t nmemb, size_t size);
+
+/**
+ * Allocate a memory block for an array with av_mallocz().
+ *
+ * The allocated memory will have size `size * nmemb` bytes.
+ *
+ * @param nmemb Number of elements
+ * @param size  Size of the single element
+ * @return Pointer to the allocated block, or `NULL` if the block cannot
+ *         be allocated
+ *
+ * @see av_mallocz()
+ * @see av_malloc_array()
+ */
+av_alloc_size(1, 2) void *av_mallocz_array(size_t nmemb, size_t size);
+
+/**
+ * Non-inlined equivalent of av_mallocz_array().
+ *
+ * Created for symmetry with the calloc() C function.
+ */
+void *av_calloc(size_t nmemb, size_t size) av_malloc_attrib;
+
+/**
+ * Allocate, reallocate, or free a block of memory.
+ *
+ * If `ptr` is `NULL` and `size` > 0, allocate a new block. If `size` is
+ * zero, free the memory block pointed to by `ptr`. Otherwise, expand or
+ * shrink that block of memory according to `size`.
+ *
+ * @param ptr  Pointer to a memory block already allocated with
+ *             av_realloc() or `NULL`
+ * @param size Size in bytes of the memory block to be allocated or
+ *             reallocated
+ *
+ * @return Pointer to a newly-reallocated block or `NULL` if the block
+ *         cannot be reallocated or the function is used to free the memory block
+ *
+ * @warning Unlike av_malloc(), the returned pointer is not guaranteed to be
+ *          correctly aligned.
+ * @see av_fast_realloc()
+ * @see av_reallocp()
+ */
+void *av_realloc(void *ptr, size_t size) av_alloc_size(2);
+
+/**
+ * Allocate, reallocate, or free a block of memory through a pointer to a
+ * pointer.
+ *
+ * If `*ptr` is `NULL` and `size` > 0, allocate a new block. If `size` is
+ * zero, free the memory block pointed to by `*ptr`. Otherwise, expand or
+ * shrink that block of memory according to `size`.
+ *
+ * @param[in,out] ptr  Pointer to a pointer to a memory block already allocated
+ *                     with av_realloc(), or a pointer to `NULL`. The pointer
+ *                     is updated on success, or freed on failure.
+ * @param[in]     size Size in bytes for the memory block to be allocated or
+ *                     reallocated
+ *
+ * @return Zero on success, an AVERROR error code on failure
+ *
+ * @warning Unlike av_malloc(), the allocated memory is not guaranteed to be
+ *          correctly aligned.
+ */
+av_warn_unused_result
+int av_reallocp(void *ptr, size_t size);
+
+/**
+ * Allocate, reallocate, or free a block of memory.
+ *
+ * This function does the same thing as av_realloc(), except:
+ * - It takes two size arguments and allocates `nelem * elsize` bytes,
+ *   after checking the result of the multiplication for integer overflow.
+ * - It frees the input block in case of failure, thus avoiding the memory
+ *   leak with the classic
+ *   @code{.c}
+ *   buf = realloc(buf);
+ *   if (!buf)
+ *       return -1;
+ *   @endcode
+ *   pattern.
+ */
+void *av_realloc_f(void *ptr, size_t nelem, size_t elsize);
+
+/**
+ * Allocate, reallocate, or free an array.
+ *
+ * If `ptr` is `NULL` and `nmemb` > 0, allocate a new block. If
+ * `nmemb` is zero, free the memory block pointed to by `ptr`.
+ *
+ * @param ptr   Pointer to a memory block already allocated with
+ *              av_realloc() or `NULL`
+ * @param nmemb Number of elements in the array
+ * @param size  Size of the single element of the array
+ *
+ * @return Pointer to a newly-reallocated block or NULL if the block
+ *         cannot be reallocated or the function is used to free the memory block
+ *
+ * @warning Unlike av_malloc(), the allocated memory is not guaranteed to be
+ *          correctly aligned.
+ * @see av_reallocp_array()
+ */
+av_alloc_size(2, 3) void *av_realloc_array(void *ptr, size_t nmemb, size_t size);
+
+/**
+ * Allocate, reallocate, or free an array through a pointer to a pointer.
+ *
+ * If `*ptr` is `NULL` and `nmemb` > 0, allocate a new block. If `nmemb` is
+ * zero, free the memory block pointed to by `*ptr`.
+ *
+ * @param[in,out] ptr   Pointer to a pointer to a memory block already
+ *                      allocated with av_realloc(), or a pointer to `NULL`.
+ *                      The pointer is updated on success, or freed on failure.
+ * @param[in]     nmemb Number of elements
+ * @param[in]     size  Size of the single element
+ *
+ * @return Zero on success, an AVERROR error code on failure
+ *
+ * @warning Unlike av_malloc(), the allocated memory is not guaranteed to be
+ *          correctly aligned.
+ */
+int av_reallocp_array(void *ptr, size_t nmemb, size_t size);
+
+/**
+ * Reallocate the given buffer if it is not large enough, otherwise do nothing.
+ *
+ * If the given buffer is `NULL`, then a new uninitialized buffer is allocated.
+ *
+ * If the given buffer is not large enough, and reallocation fails, `NULL` is
+ * returned and `*size` is set to 0, but the original buffer is not changed or
+ * freed.
+ *
+ * A typical use pattern follows:
+ *
+ * @code{.c}
+ * uint8_t *buf = ...;
+ * uint8_t *new_buf = av_fast_realloc(buf, &current_size, size_needed);
+ * if (!new_buf) {
+ *     // Allocation failed; clean up original buffer
+ *     av_freep(&buf);
+ *     return AVERROR(ENOMEM);
+ * }
+ * @endcode
+ *
+ * @param[in,out] ptr      Already allocated buffer, or `NULL`
+ * @param[in,out] size     Pointer to the size of buffer `ptr`. `*size` is
+ *                         updated to the new allocated size, in particular 0
+ *                         in case of failure.
+ * @param[in]     min_size Desired minimal size of buffer `ptr`
+ * @return `ptr` if the buffer is large enough, a pointer to newly reallocated
+ *         buffer if the buffer was not large enough, or `NULL` in case of
+ *         error
+ * @see av_realloc()
+ * @see av_fast_malloc()
+ */
+void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size);
+
+/**
+ * Allocate a buffer, reusing the given one if large enough.
+ *
+ * Contrary to av_fast_realloc(), the current buffer contents might not be
+ * preserved and on error the old buffer is freed, thus no special handling to
+ * avoid memleaks is necessary.
+ *
+ * `*ptr` is allowed to be `NULL`, in which case allocation always happens if
+ * `size_needed` is greater than 0.
+ *
+ * @code{.c}
+ * uint8_t *buf = ...;
+ * av_fast_malloc(&buf, &current_size, size_needed);
+ * if (!buf) {
+ *     // Allocation failed; buf already freed
+ *     return AVERROR(ENOMEM);
+ * }
+ * @endcode
+ *
+ * @param[in,out] ptr      Pointer to pointer to an already allocated buffer.
+ *                         `*ptr` will be overwritten with pointer to new
+ *                         buffer on success or `NULL` on failure
+ * @param[in,out] size     Pointer to the size of buffer `*ptr`. `*size` is
+ *                         updated to the new allocated size, in particular 0
+ *                         in case of failure.
+ * @param[in]     min_size Desired minimal size of buffer `*ptr`
+ * @see av_realloc()
+ * @see av_fast_mallocz()
+ */
+void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size);
+
+/**
+ * Allocate and clear a buffer, reusing the given one if large enough.
+ *
+ * Like av_fast_malloc(), but all newly allocated space is initially cleared.
+ * Reused buffer is not cleared.
+ *
+ * `*ptr` is allowed to be `NULL`, in which case allocation always happens if
+ * `size_needed` is greater than 0.
+ *
+ * @param[in,out] ptr      Pointer to pointer to an already allocated buffer.
+ *                         `*ptr` will be overwritten with pointer to new
+ *                         buffer on success or `NULL` on failure
+ * @param[in,out] size     Pointer to the size of buffer `*ptr`. `*size` is
+ *                         updated to the new allocated size, in particular 0
+ *                         in case of failure.
+ * @param[in]     min_size Desired minimal size of buffer `*ptr`
+ * @see av_fast_malloc()
+ */
+void av_fast_mallocz(void *ptr, unsigned int *size, size_t min_size);
+
+/**
+ * Free a memory block which has been allocated with a function of av_malloc()
+ * or av_realloc() family.
+ *
+ * @param ptr Pointer to the memory block which should be freed.
+ *
+ * @note `ptr = NULL` is explicitly allowed.
+ * @note It is recommended that you use av_freep() instead, to prevent leaving
+ *       behind dangling pointers.
+ * @see av_freep()
+ */
+void av_free(void *ptr);
+
+/**
+ * Free a memory block which has been allocated with a function of av_malloc()
+ * or av_realloc() family, and set the pointer pointing to it to `NULL`.
+ *
+ * @code{.c}
+ * uint8_t *buf = av_malloc(16);
+ * av_free(buf);
+ * // buf now contains a dangling pointer to freed memory, and accidental
+ * // dereference of buf will result in a use-after-free, which may be a
+ * // security risk.
+ *
+ * uint8_t *buf = av_malloc(16);
+ * av_freep(&buf);
+ * // buf is now NULL, and accidental dereference will only result in a
+ * // NULL-pointer dereference.
+ * @endcode
+ *
+ * @param ptr Pointer to the pointer to the memory block which should be freed
+ * @note `*ptr = NULL` is safe and leads to no action.
+ * @see av_free()
+ */
+void av_freep(void *ptr);
+
+/**
+ * Duplicate a string.
+ *
+ * @param s String to be duplicated
+ * @return Pointer to a newly-allocated string containing a
+ *         copy of `s` or `NULL` if the string cannot be allocated
+ * @see av_strndup()
+ */
+char *av_strdup(const char *s) av_malloc_attrib;
+
+/**
+ * Duplicate a substring of a string.
+ *
+ * @param s   String to be duplicated
+ * @param len Maximum length of the resulting string (not counting the
+ *            terminating byte)
+ * @return Pointer to a newly-allocated string containing a
+ *         substring of `s` or `NULL` if the string cannot be allocated
+ */
+char *av_strndup(const char *s, size_t len) av_malloc_attrib;
+
+/**
+ * Duplicate a buffer with av_malloc().
+ *
+ * @param p    Buffer to be duplicated
+ * @param size Size in bytes of the buffer copied
+ * @return Pointer to a newly allocated buffer containing a
+ *         copy of `p` or `NULL` if the buffer cannot be allocated
+ */
+void *av_memdup(const void *p, size_t size);
+
+/**
+ * Overlapping memcpy() implementation.
+ *
+ * @param dst  Destination buffer
+ * @param back Number of bytes back to start copying (i.e. the initial size of
+ *             the overlapping window); must be > 0
+ * @param cnt  Number of bytes to copy; must be >= 0
+ *
+ * @note `cnt > back` is valid, this will copy the bytes we just copied,
+ *       thus creating a repeating pattern with a period length of `back`.
+ */
+void av_memcpy_backptr(uint8_t *dst, int back, int cnt);
+
+/**
+ * @}
+ */
+
+/**
+ * @defgroup lavu_mem_dynarray Dynamic Array
+ *
+ * Utilities to make an array grow when needed.
+ *
+ * Sometimes, the programmer would want to have an array that can grow when
+ * needed. The libavutil dynamic array utilities fill that need.
+ *
+ * libavutil supports two systems of appending elements onto a dynamically
+ * allocated array, the first one storing the pointer to the value in the
+ * array, and the second storing the value directly. In both systems, the
+ * caller is responsible for maintaining a variable containing the length of
+ * the array, as well as freeing of the array after use.
+ *
+ * The first system stores pointers to values in a block of dynamically
+ * allocated memory. Since only pointers are stored, the function does not need
+ * to know the size of the type. Both av_dynarray_add() and
+ * av_dynarray_add_nofree() implement this system.
+ *
+ * @code
+ * type **array = NULL; //< an array of pointers to values
+ * int    nb    = 0;    //< a variable to keep track of the length of the array
+ *
+ * type to_be_added  = ...;
+ * type to_be_added2 = ...;
+ *
+ * av_dynarray_add(&array, &nb, &to_be_added);
+ * if (nb == 0)
+ *     return AVERROR(ENOMEM);
+ *
+ * av_dynarray_add(&array, &nb, &to_be_added2);
+ * if (nb == 0)
+ *     return AVERROR(ENOMEM);
+ *
+ * // Now:
+ * //  nb           == 2
+ * // &to_be_added  == array[0]
+ * // &to_be_added2 == array[1]
+ *
+ * av_freep(&array);
+ * @endcode
+ *
+ * The second system stores the value directly in a block of memory. As a
+ * result, the function has to know the size of the type. av_dynarray2_add()
+ * implements this mechanism.
+ *
+ * @code
+ * type *array = NULL; //< an array of values
+ * int   nb    = 0;    //< a variable to keep track of the length of the array
+ *
+ * type to_be_added  = ...;
+ * type to_be_added2 = ...;
+ *
+ * type *addr = av_dynarray2_add((void **)&array, &nb, sizeof(*array), NULL);
+ * if (!addr)
+ *     return AVERROR(ENOMEM);
+ * memcpy(addr, &to_be_added, sizeof(to_be_added));
+ *
+ * // Shortcut of the above.
+ * type *addr = av_dynarray2_add((void **)&array, &nb, sizeof(*array),
+ *                               (const void *)&to_be_added2);
+ * if (!addr)
+ *     return AVERROR(ENOMEM);
+ *
+ * // Now:
+ * //  nb           == 2
+ * //  to_be_added  == array[0]
+ * //  to_be_added2 == array[1]
+ *
+ * av_freep(&array);
+ * @endcode
+ *
+ * @{
+ */
+
+/**
+ * Add the pointer to an element to a dynamic array.
+ *
+ * The array to grow is supposed to be an array of pointers to
+ * structures, and the element to add must be a pointer to an already
+ * allocated structure.
+ *
+ * The array is reallocated when its size reaches powers of 2.
+ * Therefore, the amortized cost of adding an element is constant.
+ *
+ * In case of success, the pointer to the array is updated in order to
+ * point to the new grown array, and the number pointed to by `nb_ptr`
+ * is incremented.
+ * In case of failure, the array is freed, `*tab_ptr` is set to `NULL` and
+ * `*nb_ptr` is set to 0.
+ *
+ * @param[in,out] tab_ptr Pointer to the array to grow
+ * @param[in,out] nb_ptr  Pointer to the number of elements in the array
+ * @param[in]     elem    Element to add
+ * @see av_dynarray_add_nofree(), av_dynarray2_add()
+ */
+void av_dynarray_add(void *tab_ptr, int *nb_ptr, void *elem);
+
+/**
+ * Add an element to a dynamic array.
+ *
+ * Function has the same functionality as av_dynarray_add(),
+ * but it doesn't free memory on fails. It returns error code
+ * instead and leave current buffer untouched.
+ *
+ * @return >=0 on success, negative otherwise
+ * @see av_dynarray_add(), av_dynarray2_add()
+ */
+av_warn_unused_result
+int av_dynarray_add_nofree(void *tab_ptr, int *nb_ptr, void *elem);
+
+/**
+ * Add an element of size `elem_size` to a dynamic array.
+ *
+ * The array is reallocated when its number of elements reaches powers of 2.
+ * Therefore, the amortized cost of adding an element is constant.
+ *
+ * In case of success, the pointer to the array is updated in order to
+ * point to the new grown array, and the number pointed to by `nb_ptr`
+ * is incremented.
+ * In case of failure, the array is freed, `*tab_ptr` is set to `NULL` and
+ * `*nb_ptr` is set to 0.
+ *
+ * @param[in,out] tab_ptr   Pointer to the array to grow
+ * @param[in,out] nb_ptr    Pointer to the number of elements in the array
+ * @param[in]     elem_size Size in bytes of an element in the array
+ * @param[in]     elem_data Pointer to the data of the element to add. If
+ *                          `NULL`, the space of the newly added element is
+ *                          allocated but left uninitialized.
+ *
+ * @return Pointer to the data of the element to copy in the newly allocated
+ *         space
+ * @see av_dynarray_add(), av_dynarray_add_nofree()
+ */
+void *av_dynarray2_add(void **tab_ptr, int *nb_ptr, size_t elem_size,
+                       const uint8_t *elem_data);
+
+/**
+ * @}
+ */
+
+/**
+ * @defgroup lavu_mem_misc Miscellaneous Functions
+ *
+ * Other functions related to memory allocation.
+ *
+ * @{
+ */
+
+/**
+ * Multiply two `size_t` values checking for overflow.
+ *
+ * @param[in]  a,b Operands of multiplication
+ * @param[out] r   Pointer to the result of the operation
+ * @return 0 on success, AVERROR(EINVAL) on overflow
+ */
+static inline int av_size_mult(size_t a, size_t b, size_t *r)
+{
+    size_t t = a * b;
+    /* Hack inspired from glibc: don't try the division if nelem and elsize
+     * are both less than sqrt(SIZE_MAX). */
+    if ((a | b) >= ((size_t)1 << (sizeof(size_t) * 4)) && a && t / a != b)
+        return AVERROR(EINVAL);
+    *r = t;
+    return 0;
+}
+
+/**
+ * Set the maximum size that may be allocated in one block.
+ *
+ * The value specified with this function is effective for all libavutil's @ref
+ * lavu_mem_funcs "heap management functions."
+ *
+ * By default, the max value is defined as `INT_MAX`.
+ *
+ * @param max Value to be set as the new maximum size
+ *
+ * @warning Exercise extreme caution when using this function. Don't touch
+ *          this if you do not understand the full consequence of doing so.
+ */
+void av_max_alloc(size_t max);
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* AVUTIL_MEM_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mem_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mem_internal.h
new file mode 100644
index 000000000..6fdbcb016
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/mem_internal.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_MEM_INTERNAL_H
+#define AVUTIL_MEM_INTERNAL_H
+
+#include "avassert.h"
+#include "mem.h"
+
+static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
+{
+    void *val;
+
+    memcpy(&val, ptr, sizeof(val));
+    if (min_size <= *size) {
+        av_assert0(val || !min_size);
+        return 0;
+    }
+    min_size = FFMAX(min_size + min_size / 16 + 32, min_size);
+    av_freep(ptr);
+    val = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
+    memcpy(ptr, &val, sizeof(val));
+    if (!val)
+        min_size = 0;
+    *size = min_size;
+    return 1;
+}
+#endif /* AVUTIL_MEM_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/motion_vector.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/motion_vector.h
new file mode 100644
index 000000000..ec2955638
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/motion_vector.h
@@ -0,0 +1,57 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_MOTION_VECTOR_H
+#define AVUTIL_MOTION_VECTOR_H
+
+#include <stdint.h>
+
+typedef struct AVMotionVector {
+    /**
+     * Where the current macroblock comes from; negative value when it comes
+     * from the past, positive value when it comes from the future.
+     * XXX: set exact relative ref frame reference instead of a +/- 1 "direction".
+     */
+    int32_t source;
+    /**
+     * Width and height of the block.
+     */
+    uint8_t w, h;
+    /**
+     * Absolute source position. Can be outside the frame area.
+     */
+    int16_t src_x, src_y;
+    /**
+     * Absolute destination position. Can be outside the frame area.
+     */
+    int16_t dst_x, dst_y;
+    /**
+     * Extra flag information.
+     * Currently unused.
+     */
+    uint64_t flags;
+    /**
+     * Motion vector
+     * src_x = dst_x + motion_x / motion_scale
+     * src_y = dst_y + motion_y / motion_scale
+     */
+    int32_t motion_x, motion_y;
+    uint16_t motion_scale;
+} AVMotionVector;
+
+#endif /* AVUTIL_MOTION_VECTOR_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/murmur3.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/murmur3.c
new file mode 100644
index 000000000..796175251
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/murmur3.c
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2013 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <stdint.h>
+#include "mem.h"
+#include "intreadwrite.h"
+#include "murmur3.h"
+
+typedef struct AVMurMur3 {
+    uint64_t h1, h2;
+    uint8_t state[16];
+    int state_pos;
+    uint64_t len;
+} AVMurMur3;
+
+AVMurMur3 *av_murmur3_alloc(void)
+{
+    return av_mallocz(sizeof(AVMurMur3));
+}
+
+void av_murmur3_init_seeded(AVMurMur3 *c, uint64_t seed)
+{
+    memset(c, 0, sizeof(*c));
+    c->h1 = c->h2 = seed;
+}
+
+void av_murmur3_init(AVMurMur3 *c)
+{
+    // arbitrary random number as seed
+    av_murmur3_init_seeded(c, 0x725acc55daddca55);
+}
+
+static const uint64_t c1 = UINT64_C(0x87c37b91114253d5);
+static const uint64_t c2 = UINT64_C(0x4cf5ad432745937f);
+
+#define ROT(a, b) (((a) << (b)) | ((a) >> (64 - (b))))
+
+static uint64_t inline get_k1(const uint8_t *src)
+{
+    uint64_t k = AV_RL64(src);
+    k *= c1;
+    k = ROT(k, 31);
+    k *= c2;
+    return k;
+}
+
+static inline uint64_t get_k2(const uint8_t *src)
+{
+    uint64_t k = AV_RL64(src + 8);
+    k *= c2;
+    k = ROT(k, 33);
+    k *= c1;
+    return k;
+}
+
+static inline uint64_t update_h1(uint64_t k, uint64_t h1, uint64_t h2)
+{
+    k ^= h1;
+    k = ROT(k, 27);
+    k += h2;
+    k *= 5;
+    k += 0x52dce729;
+    return k;
+}
+
+static inline uint64_t update_h2(uint64_t k, uint64_t h1, uint64_t h2)
+{
+    k ^= h2;
+    k = ROT(k, 31);
+    k += h1;
+    k *= 5;
+    k += 0x38495ab5;
+    return k;
+}
+
+#if FF_API_CRYPTO_SIZE_T
+void av_murmur3_update(AVMurMur3 *c, const uint8_t *src, int len)
+#else
+void av_murmur3_update(AVMurMur3 *c, const uint8_t *src, size_t len)
+#endif
+{
+    const uint8_t *end;
+    uint64_t h1 = c->h1, h2 = c->h2;
+    uint64_t k1, k2;
+    if (len <= 0) return;
+    c->len += len;
+    if (c->state_pos > 0) {
+        while (c->state_pos < 16) {
+            c->state[c->state_pos++] = *src++;
+            if (--len <= 0) return;
+        }
+        c->state_pos = 0;
+        k1 = get_k1(c->state);
+        k2 = get_k2(c->state);
+        h1 = update_h1(k1, h1, h2);
+        h2 = update_h2(k2, h1, h2);
+    }
+
+    end = src + (len & ~15);
+    while (src < end) {
+        // These could be done sequentially instead
+        // of interleaved, but like this is over 10% faster
+        k1 = get_k1(src);
+        k2 = get_k2(src);
+        h1 = update_h1(k1, h1, h2);
+        h2 = update_h2(k2, h1, h2);
+        src += 16;
+    }
+    c->h1 = h1;
+    c->h2 = h2;
+
+    len &= 15;
+    if (len > 0) {
+        memcpy(c->state, src, len);
+        c->state_pos = len;
+    }
+}
+
+static inline uint64_t fmix(uint64_t k)
+{
+    k ^= k >> 33;
+    k *= UINT64_C(0xff51afd7ed558ccd);
+    k ^= k >> 33;
+    k *= UINT64_C(0xc4ceb9fe1a85ec53);
+    k ^= k >> 33;
+    return k;
+}
+
+void av_murmur3_final(AVMurMur3 *c, uint8_t dst[16])
+{
+    uint64_t h1 = c->h1, h2 = c->h2;
+    memset(c->state + c->state_pos, 0, sizeof(c->state) - c->state_pos);
+    h1 ^= get_k1(c->state) ^ c->len;
+    h2 ^= get_k2(c->state) ^ c->len;
+    h1 += h2;
+    h2 += h1;
+    h1 = fmix(h1);
+    h2 = fmix(h2);
+    h1 += h2;
+    h2 += h1;
+    AV_WL64(dst, h1);
+    AV_WL64(dst + 8, h2);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/murmur3.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/murmur3.h
new file mode 100644
index 000000000..1b09175c1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/murmur3.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2013 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu_murmur3
+ * Public header for MurmurHash3 hash function implementation.
+ */
+
+#ifndef AVUTIL_MURMUR3_H
+#define AVUTIL_MURMUR3_H
+
+#include <stdint.h>
+
+#include "version.h"
+
+/**
+ * @defgroup lavu_murmur3 Murmur3
+ * @ingroup lavu_hash
+ * MurmurHash3 hash function implementation.
+ *
+ * MurmurHash3 is a non-cryptographic hash function, of which three
+ * incompatible versions were created by its inventor Austin Appleby:
+ *
+ * - 32-bit output
+ * - 128-bit output for 32-bit platforms
+ * - 128-bit output for 64-bit platforms
+ *
+ * FFmpeg only implements the last variant: 128-bit output designed for 64-bit
+ * platforms. Even though the hash function was designed for 64-bit platforms,
+ * the function in reality works on 32-bit systems too, only with reduced
+ * performance.
+ *
+ * @anchor lavu_murmur3_seedinfo
+ * By design, MurmurHash3 requires a seed to operate. In response to this,
+ * libavutil provides two functions for hash initiation, one that requires a
+ * seed (av_murmur3_init_seeded()) and one that uses a fixed arbitrary integer
+ * as the seed, and therefore does not (av_murmur3_init()).
+ *
+ * To make hashes comparable, you should provide the same seed for all calls to
+ * this hash function -- if you are supplying one yourself, that is.
+ *
+ * @{
+ */
+
+/**
+ * Allocate an AVMurMur3 hash context.
+ *
+ * @return Uninitialized hash context or `NULL` in case of error
+ */
+struct AVMurMur3 *av_murmur3_alloc(void);
+
+/**
+ * Initialize or reinitialize an AVMurMur3 hash context with a seed.
+ *
+ * @param[out] c    Hash context
+ * @param[in]  seed Random seed
+ *
+ * @see av_murmur3_init()
+ * @see @ref lavu_murmur3_seedinfo "Detailed description" on a discussion of
+ * seeds for MurmurHash3.
+ */
+void av_murmur3_init_seeded(struct AVMurMur3 *c, uint64_t seed);
+
+/**
+ * Initialize or reinitialize an AVMurMur3 hash context.
+ *
+ * Equivalent to av_murmur3_init_seeded() with a built-in seed.
+ *
+ * @param[out] c    Hash context
+ *
+ * @see av_murmur3_init_seeded()
+ * @see @ref lavu_murmur3_seedinfo "Detailed description" on a discussion of
+ * seeds for MurmurHash3.
+ */
+void av_murmur3_init(struct AVMurMur3 *c);
+
+/**
+ * Update hash context with new data.
+ *
+ * @param[out] c    Hash context
+ * @param[in]  src  Input data to update hash with
+ * @param[in]  len  Number of bytes to read from `src`
+ */
+#if FF_API_CRYPTO_SIZE_T
+void av_murmur3_update(struct AVMurMur3 *c, const uint8_t *src, int len);
+#else
+void av_murmur3_update(struct AVMurMur3 *c, const uint8_t *src, size_t len);
+#endif
+
+/**
+ * Finish hashing and output digest value.
+ *
+ * @param[in,out] c    Hash context
+ * @param[out]    dst  Buffer where output digest value is stored
+ */
+void av_murmur3_final(struct AVMurMur3 *c, uint8_t dst[16]);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_MURMUR3_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/opt.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/opt.c
new file mode 100644
index 000000000..93d6c26c1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/opt.c
@@ -0,0 +1,2039 @@
+/*
+ * AVOptions
+ * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AVOptions
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "avutil.h"
+#include "avassert.h"
+#include "avstring.h"
+#include "channel_layout.h"
+#include "common.h"
+#include "dict.h"
+#include "eval.h"
+#include "log.h"
+#include "parseutils.h"
+#include "pixdesc.h"
+#include "mathematics.h"
+#include "opt.h"
+#include "samplefmt.h"
+#include "bprint.h"
+
+#include <float.h>
+
+const AVOption *av_opt_next(const void *obj, const AVOption *last)
+{
+    const AVClass *class;
+    if (!obj)
+        return NULL;
+    class = *(const AVClass**)obj;
+    if (!last && class && class->option && class->option[0].name)
+        return class->option;
+    if (last && last[1].name)
+        return ++last;
+    return NULL;
+}
+
+static int read_number(const AVOption *o, const void *dst, double *num, int *den, int64_t *intnum)
+{
+    switch (o->type) {
+    case AV_OPT_TYPE_FLAGS:
+        *intnum = *(unsigned int*)dst;
+        return 0;
+    case AV_OPT_TYPE_PIXEL_FMT:
+        *intnum = *(enum AVPixelFormat *)dst;
+        return 0;
+    case AV_OPT_TYPE_SAMPLE_FMT:
+        *intnum = *(enum AVSampleFormat *)dst;
+        return 0;
+    case AV_OPT_TYPE_BOOL:
+    case AV_OPT_TYPE_INT:
+        *intnum = *(int *)dst;
+        return 0;
+    case AV_OPT_TYPE_CHANNEL_LAYOUT:
+    case AV_OPT_TYPE_DURATION:
+    case AV_OPT_TYPE_INT64:
+    case AV_OPT_TYPE_UINT64:
+        *intnum = *(int64_t *)dst;
+        return 0;
+    case AV_OPT_TYPE_FLOAT:
+        *num = *(float *)dst;
+        return 0;
+    case AV_OPT_TYPE_DOUBLE:
+        *num = *(double *)dst;
+        return 0;
+    case AV_OPT_TYPE_RATIONAL:
+        *intnum = ((AVRational *)dst)->num;
+        *den    = ((AVRational *)dst)->den;
+        return 0;
+    case AV_OPT_TYPE_CONST:
+        *num = o->default_val.dbl;
+        return 0;
+    }
+    return AVERROR(EINVAL);
+}
+
+static int write_number(void *obj, const AVOption *o, void *dst, double num, int den, int64_t intnum)
+{
+    if (o->type != AV_OPT_TYPE_FLAGS &&
+        (!den || o->max * den < num * intnum || o->min * den > num * intnum)) {
+        num = den ? num * intnum / den : (num && intnum ? INFINITY : NAN);
+        av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range [%g - %g]\n",
+               num, o->name, o->min, o->max);
+        return AVERROR(ERANGE);
+    }
+    if (o->type == AV_OPT_TYPE_FLAGS) {
+        double d = num*intnum/den;
+        if (d < -1.5 || d > 0xFFFFFFFF+0.5 || (llrint(d*256) & 255)) {
+            av_log(obj, AV_LOG_ERROR,
+                   "Value %f for parameter '%s' is not a valid set of 32bit integer flags\n",
+                   num*intnum/den, o->name);
+            return AVERROR(ERANGE);
+        }
+    }
+
+    switch (o->type) {
+    case AV_OPT_TYPE_PIXEL_FMT:
+        *(enum AVPixelFormat *)dst = llrint(num / den) * intnum;
+        break;
+    case AV_OPT_TYPE_SAMPLE_FMT:
+        *(enum AVSampleFormat *)dst = llrint(num / den) * intnum;
+        break;
+    case AV_OPT_TYPE_BOOL:
+    case AV_OPT_TYPE_FLAGS:
+    case AV_OPT_TYPE_INT:
+        *(int *)dst = llrint(num / den) * intnum;
+        break;
+    case AV_OPT_TYPE_DURATION:
+    case AV_OPT_TYPE_CHANNEL_LAYOUT:
+    case AV_OPT_TYPE_INT64:{
+        double d = num / den;
+        if (intnum == 1 && d == (double)INT64_MAX) {
+            *(int64_t *)dst = INT64_MAX;
+        } else
+            *(int64_t *)dst = llrint(d) * intnum;
+        break;}
+    case AV_OPT_TYPE_UINT64:{
+        double d = num / den;
+        // We must special case uint64_t here as llrint() does not support values
+        // outside the int64_t range and there is no portable function which does
+        // "INT64_MAX + 1ULL" is used as it is representable exactly as IEEE double
+        // while INT64_MAX is not
+        if (intnum == 1 && d == (double)UINT64_MAX) {
+            *(uint64_t *)dst = UINT64_MAX;
+        } else if (d > INT64_MAX + 1ULL) {
+            *(uint64_t *)dst = (llrint(d - (INT64_MAX + 1ULL)) + (INT64_MAX + 1ULL))*intnum;
+        } else {
+            *(uint64_t *)dst = llrint(d) * intnum;
+        }
+        break;}
+    case AV_OPT_TYPE_FLOAT:
+        *(float *)dst = num * intnum / den;
+        break;
+    case AV_OPT_TYPE_DOUBLE:
+        *(double    *)dst = num * intnum / den;
+        break;
+    case AV_OPT_TYPE_RATIONAL:
+    case AV_OPT_TYPE_VIDEO_RATE:
+        if ((int) num == num)
+            *(AVRational *)dst = (AVRational) { num *intnum, den };
+        else
+            *(AVRational *)dst = av_d2q(num * intnum / den, 1 << 24);
+        break;
+    default:
+        return AVERROR(EINVAL);
+    }
+    return 0;
+}
+
+static int hexchar2int(char c) {
+    if (c >= '0' && c <= '9')
+        return c - '0';
+    if (c >= 'a' && c <= 'f')
+        return c - 'a' + 10;
+    if (c >= 'A' && c <= 'F')
+        return c - 'A' + 10;
+    return -1;
+}
+
+static int set_string_binary(void *obj, const AVOption *o, const char *val, uint8_t **dst)
+{
+    int *lendst = (int *)(dst + 1);
+    uint8_t *bin, *ptr;
+    int len;
+
+    av_freep(dst);
+    *lendst = 0;
+
+    if (!val || !(len = strlen(val)))
+        return 0;
+
+    if (len & 1)
+        return AVERROR(EINVAL);
+    len /= 2;
+
+    ptr = bin = av_malloc(len);
+    if (!ptr)
+        return AVERROR(ENOMEM);
+    while (*val) {
+        int a = hexchar2int(*val++);
+        int b = hexchar2int(*val++);
+        if (a < 0 || b < 0) {
+            av_free(bin);
+            return AVERROR(EINVAL);
+        }
+        *ptr++ = (a << 4) | b;
+    }
+    *dst    = bin;
+    *lendst = len;
+
+    return 0;
+}
+
+static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **dst)
+{
+    av_freep(dst);
+    *dst = av_strdup(val);
+    return *dst ? 0 : AVERROR(ENOMEM);
+}
+
+#define DEFAULT_NUMVAL(opt) ((opt->type == AV_OPT_TYPE_INT64 || \
+                              opt->type == AV_OPT_TYPE_UINT64 || \
+                              opt->type == AV_OPT_TYPE_CONST || \
+                              opt->type == AV_OPT_TYPE_FLAGS || \
+                              opt->type == AV_OPT_TYPE_INT)     \
+                             ? opt->default_val.i64             \
+                             : opt->default_val.dbl)
+
+static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst)
+{
+    int ret = 0;
+    int num, den;
+    char c;
+
+    if (sscanf(val, "%d%*1[:/]%d%c", &num, &den, &c) == 2) {
+        if ((ret = write_number(obj, o, dst, 1, den, num)) >= 0)
+            return ret;
+        ret = 0;
+    }
+
+    for (;;) {
+        int i = 0;
+        char buf[256];
+        int cmd = 0;
+        double d;
+        int64_t intnum = 1;
+
+        if (o->type == AV_OPT_TYPE_FLAGS) {
+            if (*val == '+' || *val == '-')
+                cmd = *(val++);
+            for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
+                buf[i] = val[i];
+            buf[i] = 0;
+        }
+
+        {
+            const AVOption *o_named = av_opt_find(target_obj, i ? buf : val, o->unit, 0, 0);
+            int res;
+            int ci = 0;
+            double const_values[64];
+            const char * const_names[64];
+            if (o_named && o_named->type == AV_OPT_TYPE_CONST)
+                d = DEFAULT_NUMVAL(o_named);
+            else {
+                if (o->unit) {
+                    for (o_named = NULL; o_named = av_opt_next(target_obj, o_named); ) {
+                        if (o_named->type == AV_OPT_TYPE_CONST &&
+                            o_named->unit &&
+                            !strcmp(o_named->unit, o->unit)) {
+                            if (ci + 6 >= FF_ARRAY_ELEMS(const_values)) {
+                                av_log(obj, AV_LOG_ERROR, "const_values array too small for %s\n", o->unit);
+                                return AVERROR_PATCHWELCOME;
+                            }
+                            const_names [ci  ] = o_named->name;
+                            const_values[ci++] = DEFAULT_NUMVAL(o_named);
+                        }
+                    }
+                }
+                const_names [ci  ] = "default";
+                const_values[ci++] = DEFAULT_NUMVAL(o);
+                const_names [ci  ] = "max";
+                const_values[ci++] = o->max;
+                const_names [ci  ] = "min";
+                const_values[ci++] = o->min;
+                const_names [ci  ] = "none";
+                const_values[ci++] = 0;
+                const_names [ci  ] = "all";
+                const_values[ci++] = ~0;
+                const_names [ci] = NULL;
+                const_values[ci] = 0;
+
+                res = av_expr_parse_and_eval(&d, i ? buf : val, const_names,
+                                            const_values, NULL, NULL, NULL, NULL, NULL, 0, obj);
+                if (res < 0) {
+                    av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\"\n", val);
+                    return res;
+                }
+            }
+        }
+        if (o->type == AV_OPT_TYPE_FLAGS) {
+            read_number(o, dst, NULL, NULL, &intnum);
+            if (cmd == '+')
+                d = intnum | (int64_t)d;
+            else if (cmd == '-')
+                d = intnum &~(int64_t)d;
+        }
+
+        if ((ret = write_number(obj, o, dst, d, 1, 1)) < 0)
+            return ret;
+        val += i;
+        if (!i || !*val)
+            return 0;
+    }
+}
+
+static int set_string_image_size(void *obj, const AVOption *o, const char *val, int *dst)
+{
+    int ret;
+
+    if (!val || !strcmp(val, "none")) {
+        dst[0] =
+        dst[1] = 0;
+        return 0;
+    }
+    ret = av_parse_video_size(dst, dst + 1, val);
+    if (ret < 0)
+        av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as image size\n", val);
+    return ret;
+}
+
+static int set_string_video_rate(void *obj, const AVOption *o, const char *val, AVRational *dst)
+{
+    int ret;
+    if (!val) {
+        ret = AVERROR(EINVAL);
+    } else {
+        ret = av_parse_video_rate(dst, val);
+    }
+    if (ret < 0)
+        av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as video rate\n", val);
+    return ret;
+}
+
+static int set_string_color(void *obj, const AVOption *o, const char *val, uint8_t *dst)
+{
+    int ret;
+
+    if (!val) {
+        return 0;
+    } else {
+        ret = av_parse_color(dst, val, -1, obj);
+        if (ret < 0)
+            av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as color\n", val);
+        return ret;
+    }
+    return 0;
+}
+
+static const char *get_bool_name(int val)
+{
+    if (val < 0)
+        return "auto";
+    return val ? "true" : "false";
+}
+
+static int set_string_bool(void *obj, const AVOption *o, const char *val, int *dst)
+{
+    int n;
+
+    if (!val)
+        return 0;
+
+    if (!strcmp(val, "auto")) {
+        n = -1;
+    } else if (av_match_name(val, "true,y,yes,enable,enabled,on")) {
+        n = 1;
+    } else if (av_match_name(val, "false,n,no,disable,disabled,off")) {
+        n = 0;
+    } else {
+        char *end = NULL;
+        n = strtol(val, &end, 10);
+        if (val + strlen(val) != end)
+            goto fail;
+    }
+
+    if (n < o->min || n > o->max)
+        goto fail;
+
+    *dst = n;
+    return 0;
+
+fail:
+    av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as boolean\n", val);
+    return AVERROR(EINVAL);
+}
+
+static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst,
+                          int fmt_nb, int ((*get_fmt)(const char *)), const char *desc)
+{
+    int fmt, min, max;
+
+    if (!val || !strcmp(val, "none")) {
+        fmt = -1;
+    } else {
+        fmt = get_fmt(val);
+        if (fmt == -1) {
+            char *tail;
+            fmt = strtol(val, &tail, 0);
+            if (*tail || (unsigned)fmt >= fmt_nb) {
+                av_log(obj, AV_LOG_ERROR,
+                       "Unable to parse option value \"%s\" as %s\n", val, desc);
+                return AVERROR(EINVAL);
+            }
+        }
+    }
+
+    min = FFMAX(o->min, -1);
+    max = FFMIN(o->max, fmt_nb-1);
+
+    // hack for compatibility with old ffmpeg
+    if(min == 0 && max == 0) {
+        min = -1;
+        max = fmt_nb-1;
+    }
+
+    if (fmt < min || fmt > max) {
+        av_log(obj, AV_LOG_ERROR,
+               "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
+               fmt, o->name, desc, min, max);
+        return AVERROR(ERANGE);
+    }
+
+    *(int *)dst = fmt;
+    return 0;
+}
+
+static int set_string_pixel_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
+{
+    return set_string_fmt(obj, o, val, dst,
+                          AV_PIX_FMT_NB, av_get_pix_fmt, "pixel format");
+}
+
+static int set_string_sample_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
+{
+    return set_string_fmt(obj, o, val, dst,
+                          AV_SAMPLE_FMT_NB, av_get_sample_fmt, "sample format");
+}
+
+int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
+{
+    int ret = 0;
+    void *dst, *target_obj;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+    if (!o || !target_obj)
+        return AVERROR_OPTION_NOT_FOUND;
+    if (!val && (o->type != AV_OPT_TYPE_STRING &&
+                 o->type != AV_OPT_TYPE_PIXEL_FMT && o->type != AV_OPT_TYPE_SAMPLE_FMT &&
+                 o->type != AV_OPT_TYPE_IMAGE_SIZE && o->type != AV_OPT_TYPE_VIDEO_RATE &&
+                 o->type != AV_OPT_TYPE_DURATION && o->type != AV_OPT_TYPE_COLOR &&
+                 o->type != AV_OPT_TYPE_CHANNEL_LAYOUT && o->type != AV_OPT_TYPE_BOOL))
+        return AVERROR(EINVAL);
+
+    if (o->flags & AV_OPT_FLAG_READONLY)
+        return AVERROR(EINVAL);
+
+    if (o->flags & AV_OPT_FLAG_DEPRECATED)
+        av_log(obj, AV_LOG_WARNING, "The \"%s\" option is deprecated: %s\n", name, o->help);
+
+    dst = ((uint8_t *)target_obj) + o->offset;
+    switch (o->type) {
+    case AV_OPT_TYPE_BOOL:
+        return set_string_bool(obj, o, val, dst);
+    case AV_OPT_TYPE_STRING:
+        return set_string(obj, o, val, dst);
+    case AV_OPT_TYPE_BINARY:
+        return set_string_binary(obj, o, val, dst);
+    case AV_OPT_TYPE_FLAGS:
+    case AV_OPT_TYPE_INT:
+    case AV_OPT_TYPE_INT64:
+    case AV_OPT_TYPE_UINT64:
+    case AV_OPT_TYPE_FLOAT:
+    case AV_OPT_TYPE_DOUBLE:
+    case AV_OPT_TYPE_RATIONAL:
+        return set_string_number(obj, target_obj, o, val, dst);
+    case AV_OPT_TYPE_IMAGE_SIZE:
+        return set_string_image_size(obj, o, val, dst);
+    case AV_OPT_TYPE_VIDEO_RATE: {
+        AVRational tmp;
+        ret = set_string_video_rate(obj, o, val, &tmp);
+        if (ret < 0)
+            return ret;
+        return write_number(obj, o, dst, 1, tmp.den, tmp.num);
+    }
+    case AV_OPT_TYPE_PIXEL_FMT:
+        return set_string_pixel_fmt(obj, o, val, dst);
+    case AV_OPT_TYPE_SAMPLE_FMT:
+        return set_string_sample_fmt(obj, o, val, dst);
+    case AV_OPT_TYPE_DURATION:
+        {
+            int64_t usecs = 0;
+            if (val) {
+                if ((ret = av_parse_time(&usecs, val, 1)) < 0) {
+                    av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", val);
+                    return ret;
+                }
+            }
+            if (usecs < o->min || usecs > o->max) {
+                av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range [%g - %g]\n",
+                       usecs / 1000000.0, o->name, o->min / 1000000.0, o->max / 1000000.0);
+                return AVERROR(ERANGE);
+            }
+            *(int64_t *)dst = usecs;
+            return 0;
+        }
+    case AV_OPT_TYPE_COLOR:
+        return set_string_color(obj, o, val, dst);
+    case AV_OPT_TYPE_CHANNEL_LAYOUT:
+        if (!val || !strcmp(val, "none")) {
+            *(int64_t *)dst = 0;
+        } else {
+            int64_t cl = av_get_channel_layout(val);
+            if (!cl) {
+                av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as channel layout\n", val);
+                ret = AVERROR(EINVAL);
+            }
+            *(int64_t *)dst = cl;
+            return ret;
+        }
+        break;
+    }
+
+    av_log(obj, AV_LOG_ERROR, "Invalid option type.\n");
+    return AVERROR(EINVAL);
+}
+
+#define OPT_EVAL_NUMBER(name, opttype, vartype)                         \
+int av_opt_eval_ ## name(void *obj, const AVOption *o,                  \
+                         const char *val, vartype *name ## _out)        \
+{                                                                       \
+    if (!o || o->type != opttype || o->flags & AV_OPT_FLAG_READONLY)    \
+        return AVERROR(EINVAL);                                         \
+    return set_string_number(obj, obj, o, val, name ## _out);           \
+}
+
+OPT_EVAL_NUMBER(flags,  AV_OPT_TYPE_FLAGS,    int)
+OPT_EVAL_NUMBER(int,    AV_OPT_TYPE_INT,      int)
+OPT_EVAL_NUMBER(int64,  AV_OPT_TYPE_INT64,    int64_t)
+OPT_EVAL_NUMBER(float,  AV_OPT_TYPE_FLOAT,    float)
+OPT_EVAL_NUMBER(double, AV_OPT_TYPE_DOUBLE,   double)
+OPT_EVAL_NUMBER(q,      AV_OPT_TYPE_RATIONAL, AVRational)
+
+static int set_number(void *obj, const char *name, double num, int den, int64_t intnum,
+                      int search_flags)
+{
+    void *dst, *target_obj;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+
+    if (!o || !target_obj)
+        return AVERROR_OPTION_NOT_FOUND;
+
+    if (o->flags & AV_OPT_FLAG_READONLY)
+        return AVERROR(EINVAL);
+
+    dst = ((uint8_t *)target_obj) + o->offset;
+    return write_number(obj, o, dst, num, den, intnum);
+}
+
+int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
+{
+    return set_number(obj, name, 1, 1, val, search_flags);
+}
+
+int av_opt_set_double(void *obj, const char *name, double val, int search_flags)
+{
+    return set_number(obj, name, val, 1, 1, search_flags);
+}
+
+int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags)
+{
+    return set_number(obj, name, val.num, val.den, 1, search_flags);
+}
+
+int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int search_flags)
+{
+    void *target_obj;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+    uint8_t *ptr;
+    uint8_t **dst;
+    int *lendst;
+
+    if (!o || !target_obj)
+        return AVERROR_OPTION_NOT_FOUND;
+
+    if (o->type != AV_OPT_TYPE_BINARY || o->flags & AV_OPT_FLAG_READONLY)
+        return AVERROR(EINVAL);
+
+    ptr = len ? av_malloc(len) : NULL;
+    if (len && !ptr)
+        return AVERROR(ENOMEM);
+
+    dst    = (uint8_t **)(((uint8_t *)target_obj) + o->offset);
+    lendst = (int *)(dst + 1);
+
+    av_free(*dst);
+    *dst    = ptr;
+    *lendst = len;
+    if (len)
+        memcpy(ptr, val, len);
+
+    return 0;
+}
+
+int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags)
+{
+    void *target_obj;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+
+    if (!o || !target_obj)
+        return AVERROR_OPTION_NOT_FOUND;
+    if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
+        av_log(obj, AV_LOG_ERROR,
+               "The value set by option '%s' is not an image size.\n", o->name);
+        return AVERROR(EINVAL);
+    }
+    if (w<0 || h<0) {
+        av_log(obj, AV_LOG_ERROR,
+               "Invalid negative size value %dx%d for size '%s'\n", w, h, o->name);
+        return AVERROR(EINVAL);
+    }
+    *(int *)(((uint8_t *)target_obj)             + o->offset) = w;
+    *(int *)(((uint8_t *)target_obj+sizeof(int)) + o->offset) = h;
+    return 0;
+}
+
+int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags)
+{
+    void *target_obj;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+
+    if (!o || !target_obj)
+        return AVERROR_OPTION_NOT_FOUND;
+    if (o->type != AV_OPT_TYPE_VIDEO_RATE) {
+        av_log(obj, AV_LOG_ERROR,
+               "The value set by option '%s' is not a video rate.\n", o->name);
+        return AVERROR(EINVAL);
+    }
+    if (val.num <= 0 || val.den <= 0)
+        return AVERROR(EINVAL);
+    return set_number(obj, name, val.num, val.den, 1, search_flags);
+}
+
+static int set_format(void *obj, const char *name, int fmt, int search_flags,
+                      enum AVOptionType type, const char *desc, int nb_fmts)
+{
+    void *target_obj;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0,
+                                     search_flags, &target_obj);
+    int min, max;
+
+    if (!o || !target_obj)
+        return AVERROR_OPTION_NOT_FOUND;
+    if (o->type != type) {
+        av_log(obj, AV_LOG_ERROR,
+               "The value set by option '%s' is not a %s format", name, desc);
+        return AVERROR(EINVAL);
+    }
+
+    min = FFMAX(o->min, -1);
+    max = FFMIN(o->max, nb_fmts-1);
+
+    if (fmt < min || fmt > max) {
+        av_log(obj, AV_LOG_ERROR,
+               "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
+               fmt, name, desc, min, max);
+        return AVERROR(ERANGE);
+    }
+    *(int *)(((uint8_t *)target_obj) + o->offset) = fmt;
+    return 0;
+}
+
+int av_opt_set_pixel_fmt(void *obj, const char *name, enum AVPixelFormat fmt, int search_flags)
+{
+    return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_PIXEL_FMT, "pixel", AV_PIX_FMT_NB);
+}
+
+int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags)
+{
+    return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_SAMPLE_FMT, "sample", AV_SAMPLE_FMT_NB);
+}
+
+int av_opt_set_channel_layout(void *obj, const char *name, int64_t cl, int search_flags)
+{
+    void *target_obj;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+
+    if (!o || !target_obj)
+        return AVERROR_OPTION_NOT_FOUND;
+    if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
+        av_log(obj, AV_LOG_ERROR,
+               "The value set by option '%s' is not a channel layout.\n", o->name);
+        return AVERROR(EINVAL);
+    }
+    *(int64_t *)(((uint8_t *)target_obj) + o->offset) = cl;
+    return 0;
+}
+
+int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val,
+                        int search_flags)
+{
+    void *target_obj;
+    AVDictionary **dst;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+
+    if (!o || !target_obj)
+        return AVERROR_OPTION_NOT_FOUND;
+    if (o->flags & AV_OPT_FLAG_READONLY)
+        return AVERROR(EINVAL);
+
+    dst = (AVDictionary **)(((uint8_t *)target_obj) + o->offset);
+    av_dict_free(dst);
+    av_dict_copy(dst, val, 0);
+
+    return 0;
+}
+
+static void format_duration(char *buf, size_t size, int64_t d)
+{
+    char *e;
+
+    av_assert0(size >= 25);
+    if (d < 0 && d != INT64_MIN) {
+        *(buf++) = '-';
+        size--;
+        d = -d;
+    }
+    if (d == INT64_MAX)
+        snprintf(buf, size, "INT64_MAX");
+    else if (d == INT64_MIN)
+        snprintf(buf, size, "INT64_MIN");
+    else if (d > (int64_t)3600*1000000)
+        snprintf(buf, size, "%"PRId64":%02d:%02d.%06d", d / 3600000000,
+                 (int)((d / 60000000) % 60),
+                 (int)((d / 1000000) % 60),
+                 (int)(d % 1000000));
+    else if (d > 60*1000000)
+        snprintf(buf, size, "%d:%02d.%06d",
+                 (int)(d / 60000000),
+                 (int)((d / 1000000) % 60),
+                 (int)(d % 1000000));
+    else
+        snprintf(buf, size, "%d.%06d",
+                 (int)(d / 1000000),
+                 (int)(d % 1000000));
+    e = buf + strlen(buf);
+    while (e > buf && e[-1] == '0')
+        *(--e) = 0;
+    if (e > buf && e[-1] == '.')
+        *(--e) = 0;
+}
+
+int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
+{
+    void *dst, *target_obj;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+    uint8_t *bin, buf[128];
+    int len, i, ret;
+    int64_t i64;
+
+    if (!o || !target_obj || (o->offset<=0 && o->type != AV_OPT_TYPE_CONST))
+        return AVERROR_OPTION_NOT_FOUND;
+
+    if (o->flags & AV_OPT_FLAG_DEPRECATED)
+        av_log(obj, AV_LOG_WARNING, "The \"%s\" option is deprecated: %s\n", name, o->help);
+
+    dst = (uint8_t *)target_obj + o->offset;
+
+    buf[0] = 0;
+    switch (o->type) {
+    case AV_OPT_TYPE_BOOL:
+        ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(get_bool_name(*(int *)dst), "invalid"));
+        break;
+    case AV_OPT_TYPE_FLAGS:
+        ret = snprintf(buf, sizeof(buf), "0x%08X", *(int *)dst);
+        break;
+    case AV_OPT_TYPE_INT:
+        ret = snprintf(buf, sizeof(buf), "%d", *(int *)dst);
+        break;
+    case AV_OPT_TYPE_INT64:
+        ret = snprintf(buf, sizeof(buf), "%"PRId64, *(int64_t *)dst);
+        break;
+    case AV_OPT_TYPE_UINT64:
+        ret = snprintf(buf, sizeof(buf), "%"PRIu64, *(uint64_t *)dst);
+        break;
+    case AV_OPT_TYPE_FLOAT:
+        ret = snprintf(buf, sizeof(buf), "%f", *(float *)dst);
+        break;
+    case AV_OPT_TYPE_DOUBLE:
+        ret = snprintf(buf, sizeof(buf), "%f", *(double *)dst);
+        break;
+    case AV_OPT_TYPE_VIDEO_RATE:
+    case AV_OPT_TYPE_RATIONAL:
+        ret = snprintf(buf, sizeof(buf), "%d/%d", ((AVRational *)dst)->num, ((AVRational *)dst)->den);
+        break;
+    case AV_OPT_TYPE_CONST:
+        ret = snprintf(buf, sizeof(buf), "%f", o->default_val.dbl);
+        break;
+    case AV_OPT_TYPE_STRING:
+        if (*(uint8_t **)dst) {
+            *out_val = av_strdup(*(uint8_t **)dst);
+        } else if (search_flags & AV_OPT_ALLOW_NULL) {
+            *out_val = NULL;
+            return 0;
+        } else {
+            *out_val = av_strdup("");
+        }
+        return *out_val ? 0 : AVERROR(ENOMEM);
+    case AV_OPT_TYPE_BINARY:
+        if (!*(uint8_t **)dst && (search_flags & AV_OPT_ALLOW_NULL)) {
+            *out_val = NULL;
+            return 0;
+        }
+        len = *(int *)(((uint8_t *)dst) + sizeof(uint8_t *));
+        if ((uint64_t)len * 2 + 1 > INT_MAX)
+            return AVERROR(EINVAL);
+        if (!(*out_val = av_malloc(len * 2 + 1)))
+            return AVERROR(ENOMEM);
+        if (!len) {
+            *out_val[0] = '\0';
+            return 0;
+        }
+        bin = *(uint8_t **)dst;
+        for (i = 0; i < len; i++)
+            snprintf(*out_val + i * 2, 3, "%02X", bin[i]);
+        return 0;
+    case AV_OPT_TYPE_IMAGE_SIZE:
+        ret = snprintf(buf, sizeof(buf), "%dx%d", ((int *)dst)[0], ((int *)dst)[1]);
+        break;
+    case AV_OPT_TYPE_PIXEL_FMT:
+        ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_pix_fmt_name(*(enum AVPixelFormat *)dst), "none"));
+        break;
+    case AV_OPT_TYPE_SAMPLE_FMT:
+        ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_sample_fmt_name(*(enum AVSampleFormat *)dst), "none"));
+        break;
+    case AV_OPT_TYPE_DURATION:
+        i64 = *(int64_t *)dst;
+        format_duration(buf, sizeof(buf), i64);
+        ret = strlen(buf); // no overflow possible, checked by an assert
+        break;
+    case AV_OPT_TYPE_COLOR:
+        ret = snprintf(buf, sizeof(buf), "0x%02x%02x%02x%02x",
+                       (int)((uint8_t *)dst)[0], (int)((uint8_t *)dst)[1],
+                       (int)((uint8_t *)dst)[2], (int)((uint8_t *)dst)[3]);
+        break;
+    case AV_OPT_TYPE_CHANNEL_LAYOUT:
+        i64 = *(int64_t *)dst;
+        ret = snprintf(buf, sizeof(buf), "0x%"PRIx64, i64);
+        break;
+    default:
+        return AVERROR(EINVAL);
+    }
+
+    if (ret >= sizeof(buf))
+        return AVERROR(EINVAL);
+    *out_val = av_strdup(buf);
+    return *out_val ? 0 : AVERROR(ENOMEM);
+}
+
+static int get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum,
+                      int search_flags)
+{
+    void *dst, *target_obj;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+    if (!o || !target_obj)
+        goto error;
+
+    dst = ((uint8_t *)target_obj) + o->offset;
+
+    if (o_out) *o_out= o;
+
+    return read_number(o, dst, num, den, intnum);
+
+error:
+    *den    =
+    *intnum = 0;
+    return -1;
+}
+
+int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_val)
+{
+    int64_t intnum = 1;
+    double num = 1;
+    int ret, den = 1;
+
+    if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
+        return ret;
+    *out_val = num * intnum / den;
+    return 0;
+}
+
+int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val)
+{
+    int64_t intnum = 1;
+    double num = 1;
+    int ret, den = 1;
+
+    if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
+        return ret;
+    *out_val = num * intnum / den;
+    return 0;
+}
+
+int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_val)
+{
+    int64_t intnum = 1;
+    double num = 1;
+    int ret, den = 1;
+
+    if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
+        return ret;
+
+    if (num == 1.0 && (int)intnum == intnum)
+        *out_val = (AVRational){intnum, den};
+    else
+        *out_val = av_d2q(num*intnum/den, 1<<24);
+    return 0;
+}
+
+int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out)
+{
+    void *dst, *target_obj;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+    if (!o || !target_obj)
+        return AVERROR_OPTION_NOT_FOUND;
+    if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
+        av_log(obj, AV_LOG_ERROR,
+               "The value for option '%s' is not an image size.\n", name);
+        return AVERROR(EINVAL);
+    }
+
+    dst = ((uint8_t*)target_obj) + o->offset;
+    if (w_out) *w_out = *(int *)dst;
+    if (h_out) *h_out = *((int *)dst+1);
+    return 0;
+}
+
+int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val)
+{
+    int64_t intnum = 1;
+    double     num = 1;
+    int   ret, den = 1;
+
+    if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
+        return ret;
+
+    if (num == 1.0 && (int)intnum == intnum)
+        *out_val = (AVRational) { intnum, den };
+    else
+        *out_val = av_d2q(num * intnum / den, 1 << 24);
+    return 0;
+}
+
+static int get_format(void *obj, const char *name, int search_flags, int *out_fmt,
+                      enum AVOptionType type, const char *desc)
+{
+    void *dst, *target_obj;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+    if (!o || !target_obj)
+        return AVERROR_OPTION_NOT_FOUND;
+    if (o->type != type) {
+        av_log(obj, AV_LOG_ERROR,
+               "The value for option '%s' is not a %s format.\n", desc, name);
+        return AVERROR(EINVAL);
+    }
+
+    dst = ((uint8_t*)target_obj) + o->offset;
+    *out_fmt = *(int *)dst;
+    return 0;
+}
+
+int av_opt_get_pixel_fmt(void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt)
+{
+    return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_PIXEL_FMT, "pixel");
+}
+
+int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt)
+{
+    return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_SAMPLE_FMT, "sample");
+}
+
+int av_opt_get_channel_layout(void *obj, const char *name, int search_flags, int64_t *cl)
+{
+    void *dst, *target_obj;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+    if (!o || !target_obj)
+        return AVERROR_OPTION_NOT_FOUND;
+    if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) {
+        av_log(obj, AV_LOG_ERROR,
+               "The value for option '%s' is not a channel layout.\n", name);
+        return AVERROR(EINVAL);
+    }
+
+    dst = ((uint8_t*)target_obj) + o->offset;
+    *cl = *(int64_t *)dst;
+    return 0;
+}
+
+int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDictionary **out_val)
+{
+    void *target_obj;
+    AVDictionary *src;
+    const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+
+    if (!o || !target_obj)
+        return AVERROR_OPTION_NOT_FOUND;
+    if (o->type != AV_OPT_TYPE_DICT)
+        return AVERROR(EINVAL);
+
+    src = *(AVDictionary **)(((uint8_t *)target_obj) + o->offset);
+    av_dict_copy(out_val, src, 0);
+
+    return 0;
+}
+
+int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
+{
+    const AVOption *field = av_opt_find(obj, field_name, NULL, 0, 0);
+    const AVOption *flag  = av_opt_find(obj, flag_name,
+                                        field ? field->unit : NULL, 0, 0);
+    int64_t res;
+
+    if (!field || !flag || flag->type != AV_OPT_TYPE_CONST ||
+        av_opt_get_int(obj, field_name, 0, &res) < 0)
+        return 0;
+    return res & flag->default_val.i64;
+}
+
+static void log_value(void *av_log_obj, int level, double d)
+{
+    if      (d == INT_MAX) {
+        av_log(av_log_obj, level, "INT_MAX");
+    } else if (d == INT_MIN) {
+        av_log(av_log_obj, level, "INT_MIN");
+    } else if (d == UINT32_MAX) {
+        av_log(av_log_obj, level, "UINT32_MAX");
+    } else if (d == (double)INT64_MAX) {
+        av_log(av_log_obj, level, "I64_MAX");
+    } else if (d == INT64_MIN) {
+        av_log(av_log_obj, level, "I64_MIN");
+    } else if (d == FLT_MAX) {
+        av_log(av_log_obj, level, "FLT_MAX");
+    } else if (d == FLT_MIN) {
+        av_log(av_log_obj, level, "FLT_MIN");
+    } else if (d == -FLT_MAX) {
+        av_log(av_log_obj, level, "-FLT_MAX");
+    } else if (d == -FLT_MIN) {
+        av_log(av_log_obj, level, "-FLT_MIN");
+    } else if (d == DBL_MAX) {
+        av_log(av_log_obj, level, "DBL_MAX");
+    } else if (d == DBL_MIN) {
+        av_log(av_log_obj, level, "DBL_MIN");
+    } else if (d == -DBL_MAX) {
+        av_log(av_log_obj, level, "-DBL_MAX");
+    } else if (d == -DBL_MIN) {
+        av_log(av_log_obj, level, "-DBL_MIN");
+    } else {
+        av_log(av_log_obj, level, "%g", d);
+    }
+}
+
+static const char *get_opt_const_name(void *obj, const char *unit, int64_t value)
+{
+    const AVOption *opt = NULL;
+
+    if (!unit)
+        return NULL;
+    while ((opt = av_opt_next(obj, opt)))
+        if (opt->type == AV_OPT_TYPE_CONST && !strcmp(opt->unit, unit) &&
+            opt->default_val.i64 == value)
+            return opt->name;
+    return NULL;
+}
+
+static char *get_opt_flags_string(void *obj, const char *unit, int64_t value)
+{
+    const AVOption *opt = NULL;
+    char flags[512];
+
+    flags[0] = 0;
+    if (!unit)
+        return NULL;
+    while ((opt = av_opt_next(obj, opt))) {
+        if (opt->type == AV_OPT_TYPE_CONST && !strcmp(opt->unit, unit) &&
+            opt->default_val.i64 & value) {
+            if (flags[0])
+                av_strlcatf(flags, sizeof(flags), "+");
+            av_strlcatf(flags, sizeof(flags), "%s", opt->name);
+        }
+    }
+    if (flags[0])
+        return av_strdup(flags);
+    return NULL;
+}
+
+static void opt_list(void *obj, void *av_log_obj, const char *unit,
+                     int req_flags, int rej_flags)
+{
+    const AVOption *opt = NULL;
+    AVOptionRanges *r;
+    int i;
+
+    while ((opt = av_opt_next(obj, opt))) {
+        if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
+            continue;
+
+        /* Don't print CONST's on level one.
+         * Don't print anything but CONST's on level two.
+         * Only print items from the requested unit.
+         */
+        if (!unit && opt->type == AV_OPT_TYPE_CONST)
+            continue;
+        else if (unit && opt->type != AV_OPT_TYPE_CONST)
+            continue;
+        else if (unit && opt->type == AV_OPT_TYPE_CONST && strcmp(unit, opt->unit))
+            continue;
+        else if (unit && opt->type == AV_OPT_TYPE_CONST)
+            av_log(av_log_obj, AV_LOG_INFO, "     %-15s ", opt->name);
+        else
+            av_log(av_log_obj, AV_LOG_INFO, "  %s%-17s ",
+                   (opt->flags & AV_OPT_FLAG_FILTERING_PARAM) ? "" : "-",
+                   opt->name);
+
+        switch (opt->type) {
+            case AV_OPT_TYPE_FLAGS:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<flags>");
+                break;
+            case AV_OPT_TYPE_INT:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int>");
+                break;
+            case AV_OPT_TYPE_INT64:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int64>");
+                break;
+            case AV_OPT_TYPE_UINT64:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<uint64>");
+                break;
+            case AV_OPT_TYPE_DOUBLE:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<double>");
+                break;
+            case AV_OPT_TYPE_FLOAT:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<float>");
+                break;
+            case AV_OPT_TYPE_STRING:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<string>");
+                break;
+            case AV_OPT_TYPE_RATIONAL:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<rational>");
+                break;
+            case AV_OPT_TYPE_BINARY:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<binary>");
+                break;
+            case AV_OPT_TYPE_IMAGE_SIZE:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<image_size>");
+                break;
+            case AV_OPT_TYPE_VIDEO_RATE:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<video_rate>");
+                break;
+            case AV_OPT_TYPE_PIXEL_FMT:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<pix_fmt>");
+                break;
+            case AV_OPT_TYPE_SAMPLE_FMT:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<sample_fmt>");
+                break;
+            case AV_OPT_TYPE_DURATION:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<duration>");
+                break;
+            case AV_OPT_TYPE_COLOR:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<color>");
+                break;
+            case AV_OPT_TYPE_CHANNEL_LAYOUT:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<channel_layout>");
+                break;
+            case AV_OPT_TYPE_BOOL:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<boolean>");
+                break;
+            case AV_OPT_TYPE_CONST:
+            default:
+                av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "");
+                break;
+        }
+        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.');
+        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.');
+        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_FILTERING_PARAM)? 'F' : '.');
+        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM   ) ? 'V' : '.');
+        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM   ) ? 'A' : '.');
+        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
+        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_EXPORT)         ? 'X' : '.');
+        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_READONLY)       ? 'R' : '.');
+        av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_BSF_PARAM)      ? 'B' : '.');
+
+        if (opt->help)
+            av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
+
+        if (av_opt_query_ranges(&r, obj, opt->name, AV_OPT_SEARCH_FAKE_OBJ) >= 0) {
+            switch (opt->type) {
+            case AV_OPT_TYPE_INT:
+            case AV_OPT_TYPE_INT64:
+            case AV_OPT_TYPE_UINT64:
+            case AV_OPT_TYPE_DOUBLE:
+            case AV_OPT_TYPE_FLOAT:
+            case AV_OPT_TYPE_RATIONAL:
+                for (i = 0; i < r->nb_ranges; i++) {
+                    av_log(av_log_obj, AV_LOG_INFO, " (from ");
+                    log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_min);
+                    av_log(av_log_obj, AV_LOG_INFO, " to ");
+                    log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_max);
+                    av_log(av_log_obj, AV_LOG_INFO, ")");
+                }
+                break;
+            }
+            av_opt_freep_ranges(&r);
+        }
+
+        if (opt->type != AV_OPT_TYPE_CONST  &&
+            opt->type != AV_OPT_TYPE_BINARY &&
+                !((opt->type == AV_OPT_TYPE_COLOR      ||
+                   opt->type == AV_OPT_TYPE_IMAGE_SIZE ||
+                   opt->type == AV_OPT_TYPE_STRING     ||
+                   opt->type == AV_OPT_TYPE_VIDEO_RATE) &&
+                  !opt->default_val.str)) {
+            av_log(av_log_obj, AV_LOG_INFO, " (default ");
+            switch (opt->type) {
+            case AV_OPT_TYPE_BOOL:
+                av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(get_bool_name(opt->default_val.i64), "invalid"));
+                break;
+            case AV_OPT_TYPE_FLAGS: {
+                char *def_flags = get_opt_flags_string(obj, opt->unit, opt->default_val.i64);
+                if (def_flags) {
+                    av_log(av_log_obj, AV_LOG_INFO, "%s", def_flags);
+                    av_freep(&def_flags);
+                } else {
+                    av_log(av_log_obj, AV_LOG_INFO, "%"PRIX64, opt->default_val.i64);
+                }
+                break;
+            }
+            case AV_OPT_TYPE_DURATION: {
+                char buf[25];
+                format_duration(buf, sizeof(buf), opt->default_val.i64);
+                av_log(av_log_obj, AV_LOG_INFO, "%s", buf);
+                break;
+            }
+            case AV_OPT_TYPE_INT:
+            case AV_OPT_TYPE_UINT64:
+            case AV_OPT_TYPE_INT64: {
+                const char *def_const = get_opt_const_name(obj, opt->unit, opt->default_val.i64);
+                if (def_const)
+                    av_log(av_log_obj, AV_LOG_INFO, "%s", def_const);
+                else
+                    log_value(av_log_obj, AV_LOG_INFO, opt->default_val.i64);
+                break;
+            }
+            case AV_OPT_TYPE_DOUBLE:
+            case AV_OPT_TYPE_FLOAT:
+                log_value(av_log_obj, AV_LOG_INFO, opt->default_val.dbl);
+                break;
+            case AV_OPT_TYPE_RATIONAL: {
+                AVRational q = av_d2q(opt->default_val.dbl, INT_MAX);
+                av_log(av_log_obj, AV_LOG_INFO, "%d/%d", q.num, q.den); }
+                break;
+            case AV_OPT_TYPE_PIXEL_FMT:
+                av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_pix_fmt_name(opt->default_val.i64), "none"));
+                break;
+            case AV_OPT_TYPE_SAMPLE_FMT:
+                av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_sample_fmt_name(opt->default_val.i64), "none"));
+                break;
+            case AV_OPT_TYPE_COLOR:
+            case AV_OPT_TYPE_IMAGE_SIZE:
+            case AV_OPT_TYPE_STRING:
+            case AV_OPT_TYPE_VIDEO_RATE:
+                av_log(av_log_obj, AV_LOG_INFO, "\"%s\"", opt->default_val.str);
+                break;
+            case AV_OPT_TYPE_CHANNEL_LAYOUT:
+                av_log(av_log_obj, AV_LOG_INFO, "0x%"PRIx64, opt->default_val.i64);
+                break;
+            }
+            av_log(av_log_obj, AV_LOG_INFO, ")");
+        }
+
+        av_log(av_log_obj, AV_LOG_INFO, "\n");
+        if (opt->unit && opt->type != AV_OPT_TYPE_CONST)
+            opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
+    }
+}
+
+int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
+{
+    if (!obj)
+        return -1;
+
+    av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass **)obj)->class_name);
+
+    opt_list(obj, av_log_obj, NULL, req_flags, rej_flags);
+
+    return 0;
+}
+
+void av_opt_set_defaults(void *s)
+{
+    av_opt_set_defaults2(s, 0, 0);
+}
+
+void av_opt_set_defaults2(void *s, int mask, int flags)
+{
+    const AVOption *opt = NULL;
+    while ((opt = av_opt_next(s, opt))) {
+        void *dst = ((uint8_t*)s) + opt->offset;
+
+        if ((opt->flags & mask) != flags)
+            continue;
+
+        if (opt->flags & AV_OPT_FLAG_READONLY)
+            continue;
+
+        switch (opt->type) {
+            case AV_OPT_TYPE_CONST:
+                /* Nothing to be done here */
+                break;
+            case AV_OPT_TYPE_BOOL:
+            case AV_OPT_TYPE_FLAGS:
+            case AV_OPT_TYPE_INT:
+            case AV_OPT_TYPE_INT64:
+            case AV_OPT_TYPE_UINT64:
+            case AV_OPT_TYPE_DURATION:
+            case AV_OPT_TYPE_CHANNEL_LAYOUT:
+            case AV_OPT_TYPE_PIXEL_FMT:
+            case AV_OPT_TYPE_SAMPLE_FMT:
+                write_number(s, opt, dst, 1, 1, opt->default_val.i64);
+                break;
+            case AV_OPT_TYPE_DOUBLE:
+            case AV_OPT_TYPE_FLOAT: {
+                double val;
+                val = opt->default_val.dbl;
+                write_number(s, opt, dst, val, 1, 1);
+            }
+            break;
+            case AV_OPT_TYPE_RATIONAL: {
+                AVRational val;
+                val = av_d2q(opt->default_val.dbl, INT_MAX);
+                write_number(s, opt, dst, 1, val.den, val.num);
+            }
+            break;
+            case AV_OPT_TYPE_COLOR:
+                set_string_color(s, opt, opt->default_val.str, dst);
+                break;
+            case AV_OPT_TYPE_STRING:
+                set_string(s, opt, opt->default_val.str, dst);
+                break;
+            case AV_OPT_TYPE_IMAGE_SIZE:
+                set_string_image_size(s, opt, opt->default_val.str, dst);
+                break;
+            case AV_OPT_TYPE_VIDEO_RATE:
+                set_string_video_rate(s, opt, opt->default_val.str, dst);
+                break;
+            case AV_OPT_TYPE_BINARY:
+                set_string_binary(s, opt, opt->default_val.str, dst);
+                break;
+            case AV_OPT_TYPE_DICT:
+                /* Cannot set defaults for these types */
+            break;
+        default:
+            av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n",
+                   opt->type, opt->name);
+        }
+    }
+}
+
+/**
+ * Store the value in the field in ctx that is named like key.
+ * ctx must be an AVClass context, storing is done using AVOptions.
+ *
+ * @param buf the string to parse, buf will be updated to point at the
+ * separator just after the parsed key/value pair
+ * @param key_val_sep a 0-terminated list of characters used to
+ * separate key from value
+ * @param pairs_sep a 0-terminated list of characters used to separate
+ * two pairs from each other
+ * @return 0 if the key/value pair has been successfully parsed and
+ * set, or a negative value corresponding to an AVERROR code in case
+ * of error:
+ * AVERROR(EINVAL) if the key/value pair cannot be parsed,
+ * the error code issued by av_opt_set() if the key/value pair
+ * cannot be set
+ */
+static int parse_key_value_pair(void *ctx, const char **buf,
+                                const char *key_val_sep, const char *pairs_sep)
+{
+    char *key = av_get_token(buf, key_val_sep);
+    char *val;
+    int ret;
+
+    if (!key)
+        return AVERROR(ENOMEM);
+
+    if (*key && strspn(*buf, key_val_sep)) {
+        (*buf)++;
+        val = av_get_token(buf, pairs_sep);
+        if (!val) {
+            av_freep(&key);
+            return AVERROR(ENOMEM);
+        }
+    } else {
+        av_log(ctx, AV_LOG_ERROR, "Missing key or no key/value separator found after key '%s'\n", key);
+        av_free(key);
+        return AVERROR(EINVAL);
+    }
+
+    av_log(ctx, AV_LOG_DEBUG, "Setting entry with key '%s' to value '%s'\n", key, val);
+
+    ret = av_opt_set(ctx, key, val, AV_OPT_SEARCH_CHILDREN);
+    if (ret == AVERROR_OPTION_NOT_FOUND)
+        av_log(ctx, AV_LOG_ERROR, "Key '%s' not found.\n", key);
+
+    av_free(key);
+    av_free(val);
+    return ret;
+}
+
+int av_set_options_string(void *ctx, const char *opts,
+                          const char *key_val_sep, const char *pairs_sep)
+{
+    int ret, count = 0;
+
+    if (!opts)
+        return 0;
+
+    while (*opts) {
+        if ((ret = parse_key_value_pair(ctx, &opts, key_val_sep, pairs_sep)) < 0)
+            return ret;
+        count++;
+
+        if (*opts)
+            opts++;
+    }
+
+    return count;
+}
+
+#define WHITESPACES " \n\t\r"
+
+static int is_key_char(char c)
+{
+    return (unsigned)((c | 32) - 'a') < 26 ||
+           (unsigned)(c - '0') < 10 ||
+           c == '-' || c == '_' || c == '/' || c == '.';
+}
+
+/**
+ * Read a key from a string.
+ *
+ * The key consists of is_key_char characters and must be terminated by a
+ * character from the delim string; spaces are ignored.
+ *
+ * @return  0 for success (even with ellipsis), <0 for failure
+ */
+static int get_key(const char **ropts, const char *delim, char **rkey)
+{
+    const char *opts = *ropts;
+    const char *key_start, *key_end;
+
+    key_start = opts += strspn(opts, WHITESPACES);
+    while (is_key_char(*opts))
+        opts++;
+    key_end = opts;
+    opts += strspn(opts, WHITESPACES);
+    if (!*opts || !strchr(delim, *opts))
+        return AVERROR(EINVAL);
+    opts++;
+    if (!(*rkey = av_malloc(key_end - key_start + 1)))
+        return AVERROR(ENOMEM);
+    memcpy(*rkey, key_start, key_end - key_start);
+    (*rkey)[key_end - key_start] = 0;
+    *ropts = opts;
+    return 0;
+}
+
+int av_opt_get_key_value(const char **ropts,
+                         const char *key_val_sep, const char *pairs_sep,
+                         unsigned flags,
+                         char **rkey, char **rval)
+{
+    int ret;
+    char *key = NULL, *val;
+    const char *opts = *ropts;
+
+    if ((ret = get_key(&opts, key_val_sep, &key)) < 0 &&
+        !(flags & AV_OPT_FLAG_IMPLICIT_KEY))
+        return AVERROR(EINVAL);
+    if (!(val = av_get_token(&opts, pairs_sep))) {
+        av_free(key);
+        return AVERROR(ENOMEM);
+    }
+    *ropts = opts;
+    *rkey  = key;
+    *rval  = val;
+    return 0;
+}
+
+int av_opt_set_from_string(void *ctx, const char *opts,
+                           const char *const *shorthand,
+                           const char *key_val_sep, const char *pairs_sep)
+{
+    int ret, count = 0;
+    const char *dummy_shorthand = NULL;
+    char *av_uninit(parsed_key), *av_uninit(value);
+    const char *key;
+
+    if (!opts)
+        return 0;
+    if (!shorthand)
+        shorthand = &dummy_shorthand;
+
+    while (*opts) {
+        ret = av_opt_get_key_value(&opts, key_val_sep, pairs_sep,
+                                   *shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0,
+                                   &parsed_key, &value);
+        if (ret < 0) {
+            if (ret == AVERROR(EINVAL))
+                av_log(ctx, AV_LOG_ERROR, "No option name near '%s'\n", opts);
+            else
+                av_log(ctx, AV_LOG_ERROR, "Unable to parse '%s': %s\n", opts,
+                       av_err2str(ret));
+            return ret;
+        }
+        if (*opts)
+            opts++;
+        if (parsed_key) {
+            key = parsed_key;
+            while (*shorthand) /* discard all remaining shorthand */
+                shorthand++;
+        } else {
+            key = *(shorthand++);
+        }
+
+        av_log(ctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value);
+        if ((ret = av_opt_set(ctx, key, value, 0)) < 0) {
+            if (ret == AVERROR_OPTION_NOT_FOUND)
+                av_log(ctx, AV_LOG_ERROR, "Option '%s' not found\n", key);
+            av_free(value);
+            av_free(parsed_key);
+            return ret;
+        }
+
+        av_free(value);
+        av_free(parsed_key);
+        count++;
+    }
+    return count;
+}
+
+void av_opt_free(void *obj)
+{
+    const AVOption *o = NULL;
+    while ((o = av_opt_next(obj, o))) {
+        switch (o->type) {
+        case AV_OPT_TYPE_STRING:
+        case AV_OPT_TYPE_BINARY:
+            av_freep((uint8_t *)obj + o->offset);
+            break;
+
+        case AV_OPT_TYPE_DICT:
+            av_dict_free((AVDictionary **)(((uint8_t *)obj) + o->offset));
+            break;
+
+        default:
+            break;
+        }
+    }
+}
+
+int av_opt_set_dict2(void *obj, AVDictionary **options, int search_flags)
+{
+    AVDictionaryEntry *t = NULL;
+    AVDictionary    *tmp = NULL;
+    int ret = 0;
+
+    if (!options)
+        return 0;
+
+    while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {
+        ret = av_opt_set(obj, t->key, t->value, search_flags);
+        if (ret == AVERROR_OPTION_NOT_FOUND)
+            ret = av_dict_set(&tmp, t->key, t->value, 0);
+        if (ret < 0) {
+            av_log(obj, AV_LOG_ERROR, "Error setting option %s to value %s.\n", t->key, t->value);
+            av_dict_free(&tmp);
+            return ret;
+        }
+        ret = 0;
+    }
+    av_dict_free(options);
+    *options = tmp;
+    return ret;
+}
+
+int av_opt_set_dict(void *obj, AVDictionary **options)
+{
+    return av_opt_set_dict2(obj, options, 0);
+}
+
+const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
+                            int opt_flags, int search_flags)
+{
+    return av_opt_find2(obj, name, unit, opt_flags, search_flags, NULL);
+}
+
+const AVOption *av_opt_find2(void *obj, const char *name, const char *unit,
+                             int opt_flags, int search_flags, void **target_obj)
+{
+    const AVClass  *c;
+    const AVOption *o = NULL;
+
+    if(!obj)
+        return NULL;
+
+    c= *(AVClass**)obj;
+
+    if (!c)
+        return NULL;
+
+    if (search_flags & AV_OPT_SEARCH_CHILDREN) {
+        if (search_flags & AV_OPT_SEARCH_FAKE_OBJ) {
+            const AVClass *child = NULL;
+            while (child = av_opt_child_class_next(c, child))
+                if (o = av_opt_find2(&child, name, unit, opt_flags, search_flags, NULL))
+                    return o;
+        } else {
+            void *child = NULL;
+            while (child = av_opt_child_next(obj, child))
+                if (o = av_opt_find2(child, name, unit, opt_flags, search_flags, target_obj))
+                    return o;
+        }
+    }
+
+    while (o = av_opt_next(obj, o)) {
+        if (!strcmp(o->name, name) && (o->flags & opt_flags) == opt_flags &&
+            ((!unit && o->type != AV_OPT_TYPE_CONST) ||
+             (unit  && o->type == AV_OPT_TYPE_CONST && o->unit && !strcmp(o->unit, unit)))) {
+            if (target_obj) {
+                if (!(search_flags & AV_OPT_SEARCH_FAKE_OBJ))
+                    *target_obj = obj;
+                else
+                    *target_obj = NULL;
+            }
+            return o;
+        }
+    }
+    return NULL;
+}
+
+void *av_opt_child_next(void *obj, void *prev)
+{
+    const AVClass *c = *(AVClass **)obj;
+    if (c->child_next)
+        return c->child_next(obj, prev);
+    return NULL;
+}
+
+const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *prev)
+{
+    if (parent->child_class_next)
+        return parent->child_class_next(prev);
+    return NULL;
+}
+
+void *av_opt_ptr(const AVClass *class, void *obj, const char *name)
+{
+    const AVOption *opt= av_opt_find2(&class, name, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ, NULL);
+    if(!opt)
+        return NULL;
+    return (uint8_t*)obj + opt->offset;
+}
+
+static int opt_size(enum AVOptionType type)
+{
+    switch(type) {
+    case AV_OPT_TYPE_BOOL:
+    case AV_OPT_TYPE_INT:
+    case AV_OPT_TYPE_FLAGS:
+        return sizeof(int);
+    case AV_OPT_TYPE_DURATION:
+    case AV_OPT_TYPE_CHANNEL_LAYOUT:
+    case AV_OPT_TYPE_INT64:
+    case AV_OPT_TYPE_UINT64:
+        return sizeof(int64_t);
+    case AV_OPT_TYPE_DOUBLE:
+        return sizeof(double);
+    case AV_OPT_TYPE_FLOAT:
+        return sizeof(float);
+    case AV_OPT_TYPE_STRING:
+        return sizeof(uint8_t*);
+    case AV_OPT_TYPE_VIDEO_RATE:
+    case AV_OPT_TYPE_RATIONAL:
+        return sizeof(AVRational);
+    case AV_OPT_TYPE_BINARY:
+        return sizeof(uint8_t*) + sizeof(int);
+    case AV_OPT_TYPE_IMAGE_SIZE:
+        return sizeof(int[2]);
+    case AV_OPT_TYPE_PIXEL_FMT:
+        return sizeof(enum AVPixelFormat);
+    case AV_OPT_TYPE_SAMPLE_FMT:
+        return sizeof(enum AVSampleFormat);
+    case AV_OPT_TYPE_COLOR:
+        return 4;
+    }
+    return AVERROR(EINVAL);
+}
+
+int av_opt_copy(void *dst, const void *src)
+{
+    const AVOption *o = NULL;
+    const AVClass *c;
+    int ret = 0;
+
+    if (!src)
+        return AVERROR(EINVAL);
+
+    c = *(AVClass **)src;
+    if (!c || c != *(AVClass **)dst)
+        return AVERROR(EINVAL);
+
+    while ((o = av_opt_next(src, o))) {
+        void *field_dst = (uint8_t *)dst + o->offset;
+        void *field_src = (uint8_t *)src + o->offset;
+        uint8_t **field_dst8 = (uint8_t **)field_dst;
+        uint8_t **field_src8 = (uint8_t **)field_src;
+
+        if (o->type == AV_OPT_TYPE_STRING) {
+            if (*field_dst8 != *field_src8)
+                av_freep(field_dst8);
+            *field_dst8 = av_strdup(*field_src8);
+            if (*field_src8 && !*field_dst8)
+                ret = AVERROR(ENOMEM);
+        } else if (o->type == AV_OPT_TYPE_BINARY) {
+            int len = *(int *)(field_src8 + 1);
+            if (*field_dst8 != *field_src8)
+                av_freep(field_dst8);
+            *field_dst8 = av_memdup(*field_src8, len);
+            if (len && !*field_dst8) {
+                ret = AVERROR(ENOMEM);
+                len = 0;
+            }
+            *(int *)(field_dst8 + 1) = len;
+        } else if (o->type == AV_OPT_TYPE_CONST) {
+            // do nothing
+        } else if (o->type == AV_OPT_TYPE_DICT) {
+            AVDictionary **sdict = (AVDictionary **) field_src;
+            AVDictionary **ddict = (AVDictionary **) field_dst;
+            if (*sdict != *ddict)
+                av_dict_free(ddict);
+            *ddict = NULL;
+            av_dict_copy(ddict, *sdict, 0);
+            if (av_dict_count(*sdict) != av_dict_count(*ddict))
+                ret = AVERROR(ENOMEM);
+        } else {
+            int size = opt_size(o->type);
+            if (size < 0)
+                ret = size;
+            else
+                memcpy(field_dst, field_src, size);
+        }
+    }
+    return ret;
+}
+
+int av_opt_query_ranges(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
+{
+    int ret;
+    const AVClass *c = *(AVClass**)obj;
+    int (*callback)(AVOptionRanges **, void *obj, const char *key, int flags) = NULL;
+
+    if (c->version > (52 << 16 | 11 << 8))
+        callback = c->query_ranges;
+
+    if (!callback)
+        callback = av_opt_query_ranges_default;
+
+    ret = callback(ranges_arg, obj, key, flags);
+    if (ret >= 0) {
+        if (!(flags & AV_OPT_MULTI_COMPONENT_RANGE))
+            ret = 1;
+        (*ranges_arg)->nb_components = ret;
+    }
+    return ret;
+}
+
+int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
+{
+    AVOptionRanges *ranges = av_mallocz(sizeof(*ranges));
+    AVOptionRange **range_array = av_mallocz(sizeof(void*));
+    AVOptionRange *range = av_mallocz(sizeof(*range));
+    const AVOption *field = av_opt_find(obj, key, NULL, 0, flags);
+    int ret;
+
+    *ranges_arg = NULL;
+
+    if (!ranges || !range || !range_array || !field) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    ranges->range = range_array;
+    ranges->range[0] = range;
+    ranges->nb_ranges = 1;
+    ranges->nb_components = 1;
+    range->is_range = 1;
+    range->value_min = field->min;
+    range->value_max = field->max;
+
+    switch (field->type) {
+    case AV_OPT_TYPE_BOOL:
+    case AV_OPT_TYPE_INT:
+    case AV_OPT_TYPE_INT64:
+    case AV_OPT_TYPE_UINT64:
+    case AV_OPT_TYPE_PIXEL_FMT:
+    case AV_OPT_TYPE_SAMPLE_FMT:
+    case AV_OPT_TYPE_FLOAT:
+    case AV_OPT_TYPE_DOUBLE:
+    case AV_OPT_TYPE_DURATION:
+    case AV_OPT_TYPE_COLOR:
+    case AV_OPT_TYPE_CHANNEL_LAYOUT:
+        break;
+    case AV_OPT_TYPE_STRING:
+        range->component_min = 0;
+        range->component_max = 0x10FFFF; // max unicode value
+        range->value_min = -1;
+        range->value_max = INT_MAX;
+        break;
+    case AV_OPT_TYPE_RATIONAL:
+        range->component_min = INT_MIN;
+        range->component_max = INT_MAX;
+        break;
+    case AV_OPT_TYPE_IMAGE_SIZE:
+        range->component_min = 0;
+        range->component_max = INT_MAX/128/8;
+        range->value_min = 0;
+        range->value_max = INT_MAX/8;
+        break;
+    case AV_OPT_TYPE_VIDEO_RATE:
+        range->component_min = 1;
+        range->component_max = INT_MAX;
+        range->value_min = 1;
+        range->value_max = INT_MAX;
+        break;
+    default:
+        ret = AVERROR(ENOSYS);
+        goto fail;
+    }
+
+    *ranges_arg = ranges;
+    return 1;
+fail:
+    av_free(ranges);
+    av_free(range);
+    av_free(range_array);
+    return ret;
+}
+
+void av_opt_freep_ranges(AVOptionRanges **rangesp)
+{
+    int i;
+    AVOptionRanges *ranges = *rangesp;
+
+    if (!ranges)
+        return;
+
+    for (i = 0; i < ranges->nb_ranges * ranges->nb_components; i++) {
+        AVOptionRange *range = ranges->range[i];
+        if (range) {
+            av_freep(&range->str);
+            av_freep(&ranges->range[i]);
+        }
+    }
+    av_freep(&ranges->range);
+    av_freep(rangesp);
+}
+
+int av_opt_is_set_to_default(void *obj, const AVOption *o)
+{
+    int64_t i64;
+    double d, d2;
+    float f;
+    AVRational q;
+    int ret, w, h;
+    char *str;
+    void *dst;
+
+    if (!o || !obj)
+        return AVERROR(EINVAL);
+
+    dst = ((uint8_t*)obj) + o->offset;
+
+    switch (o->type) {
+    case AV_OPT_TYPE_CONST:
+        return 1;
+    case AV_OPT_TYPE_BOOL:
+    case AV_OPT_TYPE_FLAGS:
+    case AV_OPT_TYPE_PIXEL_FMT:
+    case AV_OPT_TYPE_SAMPLE_FMT:
+    case AV_OPT_TYPE_INT:
+    case AV_OPT_TYPE_CHANNEL_LAYOUT:
+    case AV_OPT_TYPE_DURATION:
+    case AV_OPT_TYPE_INT64:
+    case AV_OPT_TYPE_UINT64:
+        read_number(o, dst, NULL, NULL, &i64);
+        return o->default_val.i64 == i64;
+    case AV_OPT_TYPE_STRING:
+        str = *(char **)dst;
+        if (str == o->default_val.str) //2 NULLs
+            return 1;
+        if (!str || !o->default_val.str) //1 NULL
+            return 0;
+        return !strcmp(str, o->default_val.str);
+    case AV_OPT_TYPE_DOUBLE:
+        read_number(o, dst, &d, NULL, NULL);
+        return o->default_val.dbl == d;
+    case AV_OPT_TYPE_FLOAT:
+        read_number(o, dst, &d, NULL, NULL);
+        f = o->default_val.dbl;
+        d2 = f;
+        return d2 == d;
+    case AV_OPT_TYPE_RATIONAL:
+        q = av_d2q(o->default_val.dbl, INT_MAX);
+        return !av_cmp_q(*(AVRational*)dst, q);
+    case AV_OPT_TYPE_BINARY: {
+        struct {
+            uint8_t *data;
+            int size;
+        } tmp = {0};
+        int opt_size = *(int *)((void **)dst + 1);
+        void *opt_ptr = *(void **)dst;
+        if (!opt_size && (!o->default_val.str || !strlen(o->default_val.str)))
+            return 1;
+        if (!opt_size ||  !o->default_val.str || !strlen(o->default_val.str ))
+            return 0;
+        if (opt_size != strlen(o->default_val.str) / 2)
+            return 0;
+        ret = set_string_binary(NULL, NULL, o->default_val.str, &tmp.data);
+        if (!ret)
+            ret = !memcmp(opt_ptr, tmp.data, tmp.size);
+        av_free(tmp.data);
+        return ret;
+    }
+    case AV_OPT_TYPE_DICT:
+        /* Binary and dict have not default support yet. Any pointer is not default. */
+        return !!(*(void **)dst);
+    case AV_OPT_TYPE_IMAGE_SIZE:
+        if (!o->default_val.str || !strcmp(o->default_val.str, "none"))
+            w = h = 0;
+        else if ((ret = av_parse_video_size(&w, &h, o->default_val.str)) < 0)
+            return ret;
+        return (w == *(int *)dst) && (h == *((int *)dst+1));
+    case AV_OPT_TYPE_VIDEO_RATE:
+        q = (AVRational){0, 0};
+        if (o->default_val.str) {
+            if ((ret = av_parse_video_rate(&q, o->default_val.str)) < 0)
+                return ret;
+        }
+        return !av_cmp_q(*(AVRational*)dst, q);
+    case AV_OPT_TYPE_COLOR: {
+        uint8_t color[4] = {0, 0, 0, 0};
+        if (o->default_val.str) {
+            if ((ret = av_parse_color(color, o->default_val.str, -1, NULL)) < 0)
+                return ret;
+        }
+        return !memcmp(color, dst, sizeof(color));
+    }
+    default:
+        av_log(obj, AV_LOG_WARNING, "Not supported option type: %d, option name: %s\n", o->type, o->name);
+        break;
+    }
+    return AVERROR_PATCHWELCOME;
+}
+
+int av_opt_is_set_to_default_by_name(void *obj, const char *name, int search_flags)
+{
+    const AVOption *o;
+    void *target;
+    if (!obj)
+        return AVERROR(EINVAL);
+    o = av_opt_find2(obj, name, NULL, 0, search_flags, &target);
+    if (!o)
+        return AVERROR_OPTION_NOT_FOUND;
+    return av_opt_is_set_to_default(target, o);
+}
+
+int av_opt_serialize(void *obj, int opt_flags, int flags, char **buffer,
+                     const char key_val_sep, const char pairs_sep)
+{
+    const AVOption *o = NULL;
+    uint8_t *buf;
+    AVBPrint bprint;
+    int ret, cnt = 0;
+    const char special_chars[] = {pairs_sep, key_val_sep, '\0'};
+
+    if (pairs_sep == '\0' || key_val_sep == '\0' || pairs_sep == key_val_sep ||
+        pairs_sep == '\\' || key_val_sep == '\\') {
+        av_log(obj, AV_LOG_ERROR, "Invalid separator(s) found.");
+        return AVERROR(EINVAL);
+    }
+
+    if (!obj || !buffer)
+        return AVERROR(EINVAL);
+
+    *buffer = NULL;
+    av_bprint_init(&bprint, 64, AV_BPRINT_SIZE_UNLIMITED);
+
+    while (o = av_opt_next(obj, o)) {
+        if (o->type == AV_OPT_TYPE_CONST)
+            continue;
+        if ((flags & AV_OPT_SERIALIZE_OPT_FLAGS_EXACT) && o->flags != opt_flags)
+            continue;
+        else if (((o->flags & opt_flags) != opt_flags))
+            continue;
+        if (flags & AV_OPT_SERIALIZE_SKIP_DEFAULTS && av_opt_is_set_to_default(obj, o) > 0)
+            continue;
+        if ((ret = av_opt_get(obj, o->name, 0, &buf)) < 0) {
+            av_bprint_finalize(&bprint, NULL);
+            return ret;
+        }
+        if (buf) {
+            if (cnt++)
+                av_bprint_append_data(&bprint, &pairs_sep, 1);
+            av_bprint_escape(&bprint, o->name, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
+            av_bprint_append_data(&bprint, &key_val_sep, 1);
+            av_bprint_escape(&bprint, buf, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
+            av_freep(&buf);
+        }
+    }
+    av_bprint_finalize(&bprint, buffer);
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/opt.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/opt.h
new file mode 100644
index 000000000..39f4a8dda
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/opt.h
@@ -0,0 +1,865 @@
+/*
+ * AVOptions
+ * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_OPT_H
+#define AVUTIL_OPT_H
+
+/**
+ * @file
+ * AVOptions
+ */
+
+#include "rational.h"
+#include "avutil.h"
+#include "dict.h"
+#include "log.h"
+#include "pixfmt.h"
+#include "samplefmt.h"
+#include "version.h"
+
+/**
+ * @defgroup avoptions AVOptions
+ * @ingroup lavu_data
+ * @{
+ * AVOptions provide a generic system to declare options on arbitrary structs
+ * ("objects"). An option can have a help text, a type and a range of possible
+ * values. Options may then be enumerated, read and written to.
+ *
+ * @section avoptions_implement Implementing AVOptions
+ * This section describes how to add AVOptions capabilities to a struct.
+ *
+ * All AVOptions-related information is stored in an AVClass. Therefore
+ * the first member of the struct should be a pointer to an AVClass describing it.
+ * The option field of the AVClass must be set to a NULL-terminated static array
+ * of AVOptions. Each AVOption must have a non-empty name, a type, a default
+ * value and for number-type AVOptions also a range of allowed values. It must
+ * also declare an offset in bytes from the start of the struct, where the field
+ * associated with this AVOption is located. Other fields in the AVOption struct
+ * should also be set when applicable, but are not required.
+ *
+ * The following example illustrates an AVOptions-enabled struct:
+ * @code
+ * typedef struct test_struct {
+ *     const AVClass *class;
+ *     int      int_opt;
+ *     char    *str_opt;
+ *     uint8_t *bin_opt;
+ *     int      bin_len;
+ * } test_struct;
+ *
+ * static const AVOption test_options[] = {
+ *   { "test_int", "This is a test option of int type.", offsetof(test_struct, int_opt),
+ *     AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX },
+ *   { "test_str", "This is a test option of string type.", offsetof(test_struct, str_opt),
+ *     AV_OPT_TYPE_STRING },
+ *   { "test_bin", "This is a test option of binary type.", offsetof(test_struct, bin_opt),
+ *     AV_OPT_TYPE_BINARY },
+ *   { NULL },
+ * };
+ *
+ * static const AVClass test_class = {
+ *     .class_name = "test class",
+ *     .item_name  = av_default_item_name,
+ *     .option     = test_options,
+ *     .version    = LIBAVUTIL_VERSION_INT,
+ * };
+ * @endcode
+ *
+ * Next, when allocating your struct, you must ensure that the AVClass pointer
+ * is set to the correct value. Then, av_opt_set_defaults() can be called to
+ * initialize defaults. After that the struct is ready to be used with the
+ * AVOptions API.
+ *
+ * When cleaning up, you may use the av_opt_free() function to automatically
+ * free all the allocated string and binary options.
+ *
+ * Continuing with the above example:
+ *
+ * @code
+ * test_struct *alloc_test_struct(void)
+ * {
+ *     test_struct *ret = av_mallocz(sizeof(*ret));
+ *     ret->class = &test_class;
+ *     av_opt_set_defaults(ret);
+ *     return ret;
+ * }
+ * void free_test_struct(test_struct **foo)
+ * {
+ *     av_opt_free(*foo);
+ *     av_freep(foo);
+ * }
+ * @endcode
+ *
+ * @subsection avoptions_implement_nesting Nesting
+ *      It may happen that an AVOptions-enabled struct contains another
+ *      AVOptions-enabled struct as a member (e.g. AVCodecContext in
+ *      libavcodec exports generic options, while its priv_data field exports
+ *      codec-specific options). In such a case, it is possible to set up the
+ *      parent struct to export a child's options. To do that, simply
+ *      implement AVClass.child_next() and AVClass.child_class_next() in the
+ *      parent struct's AVClass.
+ *      Assuming that the test_struct from above now also contains a
+ *      child_struct field:
+ *
+ *      @code
+ *      typedef struct child_struct {
+ *          AVClass *class;
+ *          int flags_opt;
+ *      } child_struct;
+ *      static const AVOption child_opts[] = {
+ *          { "test_flags", "This is a test option of flags type.",
+ *            offsetof(child_struct, flags_opt), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT_MIN, INT_MAX },
+ *          { NULL },
+ *      };
+ *      static const AVClass child_class = {
+ *          .class_name = "child class",
+ *          .item_name  = av_default_item_name,
+ *          .option     = child_opts,
+ *          .version    = LIBAVUTIL_VERSION_INT,
+ *      };
+ *
+ *      void *child_next(void *obj, void *prev)
+ *      {
+ *          test_struct *t = obj;
+ *          if (!prev && t->child_struct)
+ *              return t->child_struct;
+ *          return NULL
+ *      }
+ *      const AVClass child_class_next(const AVClass *prev)
+ *      {
+ *          return prev ? NULL : &child_class;
+ *      }
+ *      @endcode
+ *      Putting child_next() and child_class_next() as defined above into
+ *      test_class will now make child_struct's options accessible through
+ *      test_struct (again, proper setup as described above needs to be done on
+ *      child_struct right after it is created).
+ *
+ *      From the above example it might not be clear why both child_next()
+ *      and child_class_next() are needed. The distinction is that child_next()
+ *      iterates over actually existing objects, while child_class_next()
+ *      iterates over all possible child classes. E.g. if an AVCodecContext
+ *      was initialized to use a codec which has private options, then its
+ *      child_next() will return AVCodecContext.priv_data and finish
+ *      iterating. OTOH child_class_next() on AVCodecContext.av_class will
+ *      iterate over all available codecs with private options.
+ *
+ * @subsection avoptions_implement_named_constants Named constants
+ *      It is possible to create named constants for options. Simply set the unit
+ *      field of the option the constants should apply to a string and
+ *      create the constants themselves as options of type AV_OPT_TYPE_CONST
+ *      with their unit field set to the same string.
+ *      Their default_val field should contain the value of the named
+ *      constant.
+ *      For example, to add some named constants for the test_flags option
+ *      above, put the following into the child_opts array:
+ *      @code
+ *      { "test_flags", "This is a test option of flags type.",
+ *        offsetof(child_struct, flags_opt), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT_MIN, INT_MAX, "test_unit" },
+ *      { "flag1", "This is a flag with value 16", 0, AV_OPT_TYPE_CONST, { .i64 = 16 }, 0, 0, "test_unit" },
+ *      @endcode
+ *
+ * @section avoptions_use Using AVOptions
+ * This section deals with accessing options in an AVOptions-enabled struct.
+ * Such structs in FFmpeg are e.g. AVCodecContext in libavcodec or
+ * AVFormatContext in libavformat.
+ *
+ * @subsection avoptions_use_examine Examining AVOptions
+ * The basic functions for examining options are av_opt_next(), which iterates
+ * over all options defined for one object, and av_opt_find(), which searches
+ * for an option with the given name.
+ *
+ * The situation is more complicated with nesting. An AVOptions-enabled struct
+ * may have AVOptions-enabled children. Passing the AV_OPT_SEARCH_CHILDREN flag
+ * to av_opt_find() will make the function search children recursively.
+ *
+ * For enumerating there are basically two cases. The first is when you want to
+ * get all options that may potentially exist on the struct and its children
+ * (e.g.  when constructing documentation). In that case you should call
+ * av_opt_child_class_next() recursively on the parent struct's AVClass.  The
+ * second case is when you have an already initialized struct with all its
+ * children and you want to get all options that can be actually written or read
+ * from it. In that case you should call av_opt_child_next() recursively (and
+ * av_opt_next() on each result).
+ *
+ * @subsection avoptions_use_get_set Reading and writing AVOptions
+ * When setting options, you often have a string read directly from the
+ * user. In such a case, simply passing it to av_opt_set() is enough. For
+ * non-string type options, av_opt_set() will parse the string according to the
+ * option type.
+ *
+ * Similarly av_opt_get() will read any option type and convert it to a string
+ * which will be returned. Do not forget that the string is allocated, so you
+ * have to free it with av_free().
+ *
+ * In some cases it may be more convenient to put all options into an
+ * AVDictionary and call av_opt_set_dict() on it. A specific case of this
+ * are the format/codec open functions in lavf/lavc which take a dictionary
+ * filled with option as a parameter. This makes it possible to set some options
+ * that cannot be set otherwise, since e.g. the input file format is not known
+ * before the file is actually opened.
+ */
+
+enum AVOptionType{
+    AV_OPT_TYPE_FLAGS,
+    AV_OPT_TYPE_INT,
+    AV_OPT_TYPE_INT64,
+    AV_OPT_TYPE_DOUBLE,
+    AV_OPT_TYPE_FLOAT,
+    AV_OPT_TYPE_STRING,
+    AV_OPT_TYPE_RATIONAL,
+    AV_OPT_TYPE_BINARY,  ///< offset must point to a pointer immediately followed by an int for the length
+    AV_OPT_TYPE_DICT,
+    AV_OPT_TYPE_UINT64,
+    AV_OPT_TYPE_CONST,
+    AV_OPT_TYPE_IMAGE_SIZE, ///< offset must point to two consecutive integers
+    AV_OPT_TYPE_PIXEL_FMT,
+    AV_OPT_TYPE_SAMPLE_FMT,
+    AV_OPT_TYPE_VIDEO_RATE, ///< offset must point to AVRational
+    AV_OPT_TYPE_DURATION,
+    AV_OPT_TYPE_COLOR,
+    AV_OPT_TYPE_CHANNEL_LAYOUT,
+    AV_OPT_TYPE_BOOL,
+};
+
+/**
+ * AVOption
+ */
+typedef struct AVOption {
+    const char *name;
+
+    /**
+     * short English help text
+     * @todo What about other languages?
+     */
+    const char *help;
+
+    /**
+     * The offset relative to the context structure where the option
+     * value is stored. It should be 0 for named constants.
+     */
+    int offset;
+    enum AVOptionType type;
+
+    /**
+     * the default value for scalar options
+     */
+    union {
+        int64_t i64;
+        double dbl;
+        const char *str;
+        /* TODO those are unused now */
+        AVRational q;
+    } default_val;
+    double min;                 ///< minimum valid value for the option
+    double max;                 ///< maximum valid value for the option
+
+    int flags;
+#define AV_OPT_FLAG_ENCODING_PARAM  1   ///< a generic parameter which can be set by the user for muxing or encoding
+#define AV_OPT_FLAG_DECODING_PARAM  2   ///< a generic parameter which can be set by the user for demuxing or decoding
+#define AV_OPT_FLAG_AUDIO_PARAM     8
+#define AV_OPT_FLAG_VIDEO_PARAM     16
+#define AV_OPT_FLAG_SUBTITLE_PARAM  32
+/**
+ * The option is intended for exporting values to the caller.
+ */
+#define AV_OPT_FLAG_EXPORT          64
+/**
+ * The option may not be set through the AVOptions API, only read.
+ * This flag only makes sense when AV_OPT_FLAG_EXPORT is also set.
+ */
+#define AV_OPT_FLAG_READONLY        128
+#define AV_OPT_FLAG_BSF_PARAM       (1<<8) ///< a generic parameter which can be set by the user for bit stream filtering
+#define AV_OPT_FLAG_FILTERING_PARAM (1<<16) ///< a generic parameter which can be set by the user for filtering
+#define AV_OPT_FLAG_DEPRECATED      (1<<17) ///< set if option is deprecated, users should refer to AVOption.help text for more information
+//FIXME think about enc-audio, ... style flags
+
+    /**
+     * The logical unit to which the option belongs. Non-constant
+     * options and corresponding named constants share the same
+     * unit. May be NULL.
+     */
+    const char *unit;
+} AVOption;
+
+/**
+ * A single allowed range of values, or a single allowed value.
+ */
+typedef struct AVOptionRange {
+    const char *str;
+    /**
+     * Value range.
+     * For string ranges this represents the min/max length.
+     * For dimensions this represents the min/max pixel count or width/height in multi-component case.
+     */
+    double value_min, value_max;
+    /**
+     * Value's component range.
+     * For string this represents the unicode range for chars, 0-127 limits to ASCII.
+     */
+    double component_min, component_max;
+    /**
+     * Range flag.
+     * If set to 1 the struct encodes a range, if set to 0 a single value.
+     */
+    int is_range;
+} AVOptionRange;
+
+/**
+ * List of AVOptionRange structs.
+ */
+typedef struct AVOptionRanges {
+    /**
+     * Array of option ranges.
+     *
+     * Most of option types use just one component.
+     * Following describes multi-component option types:
+     *
+     * AV_OPT_TYPE_IMAGE_SIZE:
+     * component index 0: range of pixel count (width * height).
+     * component index 1: range of width.
+     * component index 2: range of height.
+     *
+     * @note To obtain multi-component version of this structure, user must
+     *       provide AV_OPT_MULTI_COMPONENT_RANGE to av_opt_query_ranges or
+     *       av_opt_query_ranges_default function.
+     *
+     * Multi-component range can be read as in following example:
+     *
+     * @code
+     * int range_index, component_index;
+     * AVOptionRanges *ranges;
+     * AVOptionRange *range[3]; //may require more than 3 in the future.
+     * av_opt_query_ranges(&ranges, obj, key, AV_OPT_MULTI_COMPONENT_RANGE);
+     * for (range_index = 0; range_index < ranges->nb_ranges; range_index++) {
+     *     for (component_index = 0; component_index < ranges->nb_components; component_index++)
+     *         range[component_index] = ranges->range[ranges->nb_ranges * component_index + range_index];
+     *     //do something with range here.
+     * }
+     * av_opt_freep_ranges(&ranges);
+     * @endcode
+     */
+    AVOptionRange **range;
+    /**
+     * Number of ranges per component.
+     */
+    int nb_ranges;
+    /**
+     * Number of componentes.
+     */
+    int nb_components;
+} AVOptionRanges;
+
+/**
+ * Show the obj options.
+ *
+ * @param req_flags requested flags for the options to show. Show only the
+ * options for which it is opt->flags & req_flags.
+ * @param rej_flags rejected flags for the options to show. Show only the
+ * options for which it is !(opt->flags & req_flags).
+ * @param av_log_obj log context to use for showing the options
+ */
+int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags);
+
+/**
+ * Set the values of all AVOption fields to their default values.
+ *
+ * @param s an AVOption-enabled struct (its first member must be a pointer to AVClass)
+ */
+void av_opt_set_defaults(void *s);
+
+/**
+ * Set the values of all AVOption fields to their default values. Only these
+ * AVOption fields for which (opt->flags & mask) == flags will have their
+ * default applied to s.
+ *
+ * @param s an AVOption-enabled struct (its first member must be a pointer to AVClass)
+ * @param mask combination of AV_OPT_FLAG_*
+ * @param flags combination of AV_OPT_FLAG_*
+ */
+void av_opt_set_defaults2(void *s, int mask, int flags);
+
+/**
+ * Parse the key/value pairs list in opts. For each key/value pair
+ * found, stores the value in the field in ctx that is named like the
+ * key. ctx must be an AVClass context, storing is done using
+ * AVOptions.
+ *
+ * @param opts options string to parse, may be NULL
+ * @param key_val_sep a 0-terminated list of characters used to
+ * separate key from value
+ * @param pairs_sep a 0-terminated list of characters used to separate
+ * two pairs from each other
+ * @return the number of successfully set key/value pairs, or a negative
+ * value corresponding to an AVERROR code in case of error:
+ * AVERROR(EINVAL) if opts cannot be parsed,
+ * the error code issued by av_opt_set() if a key/value pair
+ * cannot be set
+ */
+int av_set_options_string(void *ctx, const char *opts,
+                          const char *key_val_sep, const char *pairs_sep);
+
+/**
+ * Parse the key-value pairs list in opts. For each key=value pair found,
+ * set the value of the corresponding option in ctx.
+ *
+ * @param ctx          the AVClass object to set options on
+ * @param opts         the options string, key-value pairs separated by a
+ *                     delimiter
+ * @param shorthand    a NULL-terminated array of options names for shorthand
+ *                     notation: if the first field in opts has no key part,
+ *                     the key is taken from the first element of shorthand;
+ *                     then again for the second, etc., until either opts is
+ *                     finished, shorthand is finished or a named option is
+ *                     found; after that, all options must be named
+ * @param key_val_sep  a 0-terminated list of characters used to separate
+ *                     key from value, for example '='
+ * @param pairs_sep    a 0-terminated list of characters used to separate
+ *                     two pairs from each other, for example ':' or ','
+ * @return  the number of successfully set key=value pairs, or a negative
+ *          value corresponding to an AVERROR code in case of error:
+ *          AVERROR(EINVAL) if opts cannot be parsed,
+ *          the error code issued by av_set_string3() if a key/value pair
+ *          cannot be set
+ *
+ * Options names must use only the following characters: a-z A-Z 0-9 - . / _
+ * Separators must use characters distinct from option names and from each
+ * other.
+ */
+int av_opt_set_from_string(void *ctx, const char *opts,
+                           const char *const *shorthand,
+                           const char *key_val_sep, const char *pairs_sep);
+/**
+ * Free all allocated objects in obj.
+ */
+void av_opt_free(void *obj);
+
+/**
+ * Check whether a particular flag is set in a flags field.
+ *
+ * @param field_name the name of the flag field option
+ * @param flag_name the name of the flag to check
+ * @return non-zero if the flag is set, zero if the flag isn't set,
+ *         isn't of the right type, or the flags field doesn't exist.
+ */
+int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name);
+
+/**
+ * Set all the options from a given dictionary on an object.
+ *
+ * @param obj a struct whose first element is a pointer to AVClass
+ * @param options options to process. This dictionary will be freed and replaced
+ *                by a new one containing all options not found in obj.
+ *                Of course this new dictionary needs to be freed by caller
+ *                with av_dict_free().
+ *
+ * @return 0 on success, a negative AVERROR if some option was found in obj,
+ *         but could not be set.
+ *
+ * @see av_dict_copy()
+ */
+int av_opt_set_dict(void *obj, struct AVDictionary **options);
+
+
+/**
+ * Set all the options from a given dictionary on an object.
+ *
+ * @param obj a struct whose first element is a pointer to AVClass
+ * @param options options to process. This dictionary will be freed and replaced
+ *                by a new one containing all options not found in obj.
+ *                Of course this new dictionary needs to be freed by caller
+ *                with av_dict_free().
+ * @param search_flags A combination of AV_OPT_SEARCH_*.
+ *
+ * @return 0 on success, a negative AVERROR if some option was found in obj,
+ *         but could not be set.
+ *
+ * @see av_dict_copy()
+ */
+int av_opt_set_dict2(void *obj, struct AVDictionary **options, int search_flags);
+
+/**
+ * Extract a key-value pair from the beginning of a string.
+ *
+ * @param ropts        pointer to the options string, will be updated to
+ *                     point to the rest of the string (one of the pairs_sep
+ *                     or the final NUL)
+ * @param key_val_sep  a 0-terminated list of characters used to separate
+ *                     key from value, for example '='
+ * @param pairs_sep    a 0-terminated list of characters used to separate
+ *                     two pairs from each other, for example ':' or ','
+ * @param flags        flags; see the AV_OPT_FLAG_* values below
+ * @param rkey         parsed key; must be freed using av_free()
+ * @param rval         parsed value; must be freed using av_free()
+ *
+ * @return  >=0 for success, or a negative value corresponding to an
+ *          AVERROR code in case of error; in particular:
+ *          AVERROR(EINVAL) if no key is present
+ *
+ */
+int av_opt_get_key_value(const char **ropts,
+                         const char *key_val_sep, const char *pairs_sep,
+                         unsigned flags,
+                         char **rkey, char **rval);
+
+enum {
+
+    /**
+     * Accept to parse a value without a key; the key will then be returned
+     * as NULL.
+     */
+    AV_OPT_FLAG_IMPLICIT_KEY = 1,
+};
+
+/**
+ * @defgroup opt_eval_funcs Evaluating option strings
+ * @{
+ * This group of functions can be used to evaluate option strings
+ * and get numbers out of them. They do the same thing as av_opt_set(),
+ * except the result is written into the caller-supplied pointer.
+ *
+ * @param obj a struct whose first element is a pointer to AVClass.
+ * @param o an option for which the string is to be evaluated.
+ * @param val string to be evaluated.
+ * @param *_out value of the string will be written here.
+ *
+ * @return 0 on success, a negative number on failure.
+ */
+int av_opt_eval_flags (void *obj, const AVOption *o, const char *val, int        *flags_out);
+int av_opt_eval_int   (void *obj, const AVOption *o, const char *val, int        *int_out);
+int av_opt_eval_int64 (void *obj, const AVOption *o, const char *val, int64_t    *int64_out);
+int av_opt_eval_float (void *obj, const AVOption *o, const char *val, float      *float_out);
+int av_opt_eval_double(void *obj, const AVOption *o, const char *val, double     *double_out);
+int av_opt_eval_q     (void *obj, const AVOption *o, const char *val, AVRational *q_out);
+/**
+ * @}
+ */
+
+#define AV_OPT_SEARCH_CHILDREN   (1 << 0) /**< Search in possible children of the
+                                               given object first. */
+/**
+ *  The obj passed to av_opt_find() is fake -- only a double pointer to AVClass
+ *  instead of a required pointer to a struct containing AVClass. This is
+ *  useful for searching for options without needing to allocate the corresponding
+ *  object.
+ */
+#define AV_OPT_SEARCH_FAKE_OBJ   (1 << 1)
+
+/**
+ *  In av_opt_get, return NULL if the option has a pointer type and is set to NULL,
+ *  rather than returning an empty string.
+ */
+#define AV_OPT_ALLOW_NULL (1 << 2)
+
+/**
+ *  Allows av_opt_query_ranges and av_opt_query_ranges_default to return more than
+ *  one component for certain option types.
+ *  @see AVOptionRanges for details.
+ */
+#define AV_OPT_MULTI_COMPONENT_RANGE (1 << 12)
+
+/**
+ * Look for an option in an object. Consider only options which
+ * have all the specified flags set.
+ *
+ * @param[in] obj A pointer to a struct whose first element is a
+ *                pointer to an AVClass.
+ *                Alternatively a double pointer to an AVClass, if
+ *                AV_OPT_SEARCH_FAKE_OBJ search flag is set.
+ * @param[in] name The name of the option to look for.
+ * @param[in] unit When searching for named constants, name of the unit
+ *                 it belongs to.
+ * @param opt_flags Find only options with all the specified flags set (AV_OPT_FLAG).
+ * @param search_flags A combination of AV_OPT_SEARCH_*.
+ *
+ * @return A pointer to the option found, or NULL if no option
+ *         was found.
+ *
+ * @note Options found with AV_OPT_SEARCH_CHILDREN flag may not be settable
+ * directly with av_opt_set(). Use special calls which take an options
+ * AVDictionary (e.g. avformat_open_input()) to set options found with this
+ * flag.
+ */
+const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
+                            int opt_flags, int search_flags);
+
+/**
+ * Look for an option in an object. Consider only options which
+ * have all the specified flags set.
+ *
+ * @param[in] obj A pointer to a struct whose first element is a
+ *                pointer to an AVClass.
+ *                Alternatively a double pointer to an AVClass, if
+ *                AV_OPT_SEARCH_FAKE_OBJ search flag is set.
+ * @param[in] name The name of the option to look for.
+ * @param[in] unit When searching for named constants, name of the unit
+ *                 it belongs to.
+ * @param opt_flags Find only options with all the specified flags set (AV_OPT_FLAG).
+ * @param search_flags A combination of AV_OPT_SEARCH_*.
+ * @param[out] target_obj if non-NULL, an object to which the option belongs will be
+ * written here. It may be different from obj if AV_OPT_SEARCH_CHILDREN is present
+ * in search_flags. This parameter is ignored if search_flags contain
+ * AV_OPT_SEARCH_FAKE_OBJ.
+ *
+ * @return A pointer to the option found, or NULL if no option
+ *         was found.
+ */
+const AVOption *av_opt_find2(void *obj, const char *name, const char *unit,
+                             int opt_flags, int search_flags, void **target_obj);
+
+/**
+ * Iterate over all AVOptions belonging to obj.
+ *
+ * @param obj an AVOptions-enabled struct or a double pointer to an
+ *            AVClass describing it.
+ * @param prev result of the previous call to av_opt_next() on this object
+ *             or NULL
+ * @return next AVOption or NULL
+ */
+const AVOption *av_opt_next(const void *obj, const AVOption *prev);
+
+/**
+ * Iterate over AVOptions-enabled children of obj.
+ *
+ * @param prev result of a previous call to this function or NULL
+ * @return next AVOptions-enabled child or NULL
+ */
+void *av_opt_child_next(void *obj, void *prev);
+
+/**
+ * Iterate over potential AVOptions-enabled children of parent.
+ *
+ * @param prev result of a previous call to this function or NULL
+ * @return AVClass corresponding to next potential child or NULL
+ */
+const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *prev);
+
+/**
+ * @defgroup opt_set_funcs Option setting functions
+ * @{
+ * Those functions set the field of obj with the given name to value.
+ *
+ * @param[in] obj A struct whose first element is a pointer to an AVClass.
+ * @param[in] name the name of the field to set
+ * @param[in] val The value to set. In case of av_opt_set() if the field is not
+ * of a string type, then the given string is parsed.
+ * SI postfixes and some named scalars are supported.
+ * If the field is of a numeric type, it has to be a numeric or named
+ * scalar. Behavior with more than one scalar and +- infix operators
+ * is undefined.
+ * If the field is of a flags type, it has to be a sequence of numeric
+ * scalars or named flags separated by '+' or '-'. Prefixing a flag
+ * with '+' causes it to be set without affecting the other flags;
+ * similarly, '-' unsets a flag.
+ * @param search_flags flags passed to av_opt_find2. I.e. if AV_OPT_SEARCH_CHILDREN
+ * is passed here, then the option may be set on a child of obj.
+ *
+ * @return 0 if the value has been set, or an AVERROR code in case of
+ * error:
+ * AVERROR_OPTION_NOT_FOUND if no matching option exists
+ * AVERROR(ERANGE) if the value is out of range
+ * AVERROR(EINVAL) if the value is not valid
+ */
+int av_opt_set         (void *obj, const char *name, const char *val, int search_flags);
+int av_opt_set_int     (void *obj, const char *name, int64_t     val, int search_flags);
+int av_opt_set_double  (void *obj, const char *name, double      val, int search_flags);
+int av_opt_set_q       (void *obj, const char *name, AVRational  val, int search_flags);
+int av_opt_set_bin     (void *obj, const char *name, const uint8_t *val, int size, int search_flags);
+int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags);
+int av_opt_set_pixel_fmt (void *obj, const char *name, enum AVPixelFormat fmt, int search_flags);
+int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags);
+int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags);
+int av_opt_set_channel_layout(void *obj, const char *name, int64_t ch_layout, int search_flags);
+/**
+ * @note Any old dictionary present is discarded and replaced with a copy of the new one. The
+ * caller still owns val is and responsible for freeing it.
+ */
+int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val, int search_flags);
+
+/**
+ * Set a binary option to an integer list.
+ *
+ * @param obj    AVClass object to set options on
+ * @param name   name of the binary option
+ * @param val    pointer to an integer list (must have the correct type with
+ *               regard to the contents of the list)
+ * @param term   list terminator (usually 0 or -1)
+ * @param flags  search flags
+ */
+#define av_opt_set_int_list(obj, name, val, term, flags) \
+    (av_int_list_length(val, term) > INT_MAX / sizeof(*(val)) ? \
+     AVERROR(EINVAL) : \
+     av_opt_set_bin(obj, name, (const uint8_t *)(val), \
+                    av_int_list_length(val, term) * sizeof(*(val)), flags))
+
+/**
+ * @}
+ */
+
+/**
+ * @defgroup opt_get_funcs Option getting functions
+ * @{
+ * Those functions get a value of the option with the given name from an object.
+ *
+ * @param[in] obj a struct whose first element is a pointer to an AVClass.
+ * @param[in] name name of the option to get.
+ * @param[in] search_flags flags passed to av_opt_find2. I.e. if AV_OPT_SEARCH_CHILDREN
+ * is passed here, then the option may be found in a child of obj.
+ * @param[out] out_val value of the option will be written here
+ * @return >=0 on success, a negative error code otherwise
+ */
+/**
+ * @note the returned string will be av_malloc()ed and must be av_free()ed by the caller
+ *
+ * @note if AV_OPT_ALLOW_NULL is set in search_flags in av_opt_get, and the option has
+ * AV_OPT_TYPE_STRING or AV_OPT_TYPE_BINARY and is set to NULL, *out_val will be set
+ * to NULL instead of an allocated empty string.
+ */
+int av_opt_get         (void *obj, const char *name, int search_flags, uint8_t   **out_val);
+int av_opt_get_int     (void *obj, const char *name, int search_flags, int64_t    *out_val);
+int av_opt_get_double  (void *obj, const char *name, int search_flags, double     *out_val);
+int av_opt_get_q       (void *obj, const char *name, int search_flags, AVRational *out_val);
+int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out);
+int av_opt_get_pixel_fmt (void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt);
+int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt);
+int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val);
+int av_opt_get_channel_layout(void *obj, const char *name, int search_flags, int64_t *ch_layout);
+/**
+ * @param[out] out_val The returned dictionary is a copy of the actual value and must
+ * be freed with av_dict_free() by the caller
+ */
+int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDictionary **out_val);
+/**
+ * @}
+ */
+/**
+ * Gets a pointer to the requested field in a struct.
+ * This function allows accessing a struct even when its fields are moved or
+ * renamed since the application making the access has been compiled,
+ *
+ * @returns a pointer to the field, it can be cast to the correct type and read
+ *          or written to.
+ */
+void *av_opt_ptr(const AVClass *avclass, void *obj, const char *name);
+
+/**
+ * Free an AVOptionRanges struct and set it to NULL.
+ */
+void av_opt_freep_ranges(AVOptionRanges **ranges);
+
+/**
+ * Get a list of allowed ranges for the given option.
+ *
+ * The returned list may depend on other fields in obj like for example profile.
+ *
+ * @param flags is a bitmask of flags, undefined flags should not be set and should be ignored
+ *              AV_OPT_SEARCH_FAKE_OBJ indicates that the obj is a double pointer to a AVClass instead of a full instance
+ *              AV_OPT_MULTI_COMPONENT_RANGE indicates that function may return more than one component, @see AVOptionRanges
+ *
+ * The result must be freed with av_opt_freep_ranges.
+ *
+ * @return number of compontents returned on success, a negative errro code otherwise
+ */
+int av_opt_query_ranges(AVOptionRanges **, void *obj, const char *key, int flags);
+
+/**
+ * Copy options from src object into dest object.
+ *
+ * Options that require memory allocation (e.g. string or binary) are malloc'ed in dest object.
+ * Original memory allocated for such options is freed unless both src and dest options points to the same memory.
+ *
+ * @param dest Object to copy from
+ * @param src  Object to copy into
+ * @return 0 on success, negative on error
+ */
+int av_opt_copy(void *dest, const void *src);
+
+/**
+ * Get a default list of allowed ranges for the given option.
+ *
+ * This list is constructed without using the AVClass.query_ranges() callback
+ * and can be used as fallback from within the callback.
+ *
+ * @param flags is a bitmask of flags, undefined flags should not be set and should be ignored
+ *              AV_OPT_SEARCH_FAKE_OBJ indicates that the obj is a double pointer to a AVClass instead of a full instance
+ *              AV_OPT_MULTI_COMPONENT_RANGE indicates that function may return more than one component, @see AVOptionRanges
+ *
+ * The result must be freed with av_opt_free_ranges.
+ *
+ * @return number of compontents returned on success, a negative errro code otherwise
+ */
+int av_opt_query_ranges_default(AVOptionRanges **, void *obj, const char *key, int flags);
+
+/**
+ * Check if given option is set to its default value.
+ *
+ * Options o must belong to the obj. This function must not be called to check child's options state.
+ * @see av_opt_is_set_to_default_by_name().
+ *
+ * @param obj  AVClass object to check option on
+ * @param o    option to be checked
+ * @return     >0 when option is set to its default,
+ *              0 when option is not set its default,
+ *             <0 on error
+ */
+int av_opt_is_set_to_default(void *obj, const AVOption *o);
+
+/**
+ * Check if given option is set to its default value.
+ *
+ * @param obj          AVClass object to check option on
+ * @param name         option name
+ * @param search_flags combination of AV_OPT_SEARCH_*
+ * @return             >0 when option is set to its default,
+ *                     0 when option is not set its default,
+ *                     <0 on error
+ */
+int av_opt_is_set_to_default_by_name(void *obj, const char *name, int search_flags);
+
+
+#define AV_OPT_SERIALIZE_SKIP_DEFAULTS              0x00000001  ///< Serialize options that are not set to default values only.
+#define AV_OPT_SERIALIZE_OPT_FLAGS_EXACT            0x00000002  ///< Serialize options that exactly match opt_flags only.
+
+/**
+ * Serialize object's options.
+ *
+ * Create a string containing object's serialized options.
+ * Such string may be passed back to av_opt_set_from_string() in order to restore option values.
+ * A key/value or pairs separator occurring in the serialized value or
+ * name string are escaped through the av_escape() function.
+ *
+ * @param[in]  obj           AVClass object to serialize
+ * @param[in]  opt_flags     serialize options with all the specified flags set (AV_OPT_FLAG)
+ * @param[in]  flags         combination of AV_OPT_SERIALIZE_* flags
+ * @param[out] buffer        Pointer to buffer that will be allocated with string containg serialized options.
+ *                           Buffer must be freed by the caller when is no longer needed.
+ * @param[in]  key_val_sep   character used to separate key from value
+ * @param[in]  pairs_sep     character used to separate two pairs from each other
+ * @return                   >= 0 on success, negative on error
+ * @warning Separators cannot be neither '\\' nor '\0'. They also cannot be the same.
+ */
+int av_opt_serialize(void *obj, int opt_flags, int flags, char **buffer,
+                     const char key_val_sep, const char pairs_sep);
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_OPT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/parseutils.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/parseutils.c
new file mode 100644
index 000000000..167e82264
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/parseutils.c
@@ -0,0 +1,786 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * misc parsing utilities
+ */
+
+#include <time.h>
+
+#include "avstring.h"
+#include "avutil.h"
+#include "common.h"
+#include "eval.h"
+#include "log.h"
+#include "random_seed.h"
+#include "time_internal.h"
+#include "parseutils.h"
+#include "time.h"
+
+#ifdef TEST
+
+#define av_get_random_seed av_get_random_seed_deterministic
+static uint32_t av_get_random_seed_deterministic(void);
+
+#define av_gettime() 1331972053200000
+
+#endif
+
+int av_parse_ratio(AVRational *q, const char *str, int max,
+                   int log_offset, void *log_ctx)
+{
+    char c;
+    int ret;
+
+    if (sscanf(str, "%d:%d%c", &q->num, &q->den, &c) != 2) {
+        double d;
+        ret = av_expr_parse_and_eval(&d, str, NULL, NULL,
+                                     NULL, NULL, NULL, NULL,
+                                     NULL, log_offset, log_ctx);
+        if (ret < 0)
+            return ret;
+        *q = av_d2q(d, max);
+    } else {
+        av_reduce(&q->num, &q->den, q->num, q->den, max);
+    }
+
+    return 0;
+}
+
+typedef struct VideoSizeAbbr {
+    const char *abbr;
+    int width, height;
+} VideoSizeAbbr;
+
+typedef struct VideoRateAbbr {
+    const char *abbr;
+    AVRational rate;
+} VideoRateAbbr;
+
+static const VideoSizeAbbr video_size_abbrs[] = {
+    { "ntsc",      720, 480 },
+    { "pal",       720, 576 },
+    { "qntsc",     352, 240 }, /* VCD compliant NTSC */
+    { "qpal",      352, 288 }, /* VCD compliant PAL */
+    { "sntsc",     640, 480 }, /* square pixel NTSC */
+    { "spal",      768, 576 }, /* square pixel PAL */
+    { "film",      352, 240 },
+    { "ntsc-film", 352, 240 },
+    { "sqcif",     128,  96 },
+    { "qcif",      176, 144 },
+    { "cif",       352, 288 },
+    { "4cif",      704, 576 },
+    { "16cif",    1408,1152 },
+    { "qqvga",     160, 120 },
+    { "qvga",      320, 240 },
+    { "vga",       640, 480 },
+    { "svga",      800, 600 },
+    { "xga",      1024, 768 },
+    { "uxga",     1600,1200 },
+    { "qxga",     2048,1536 },
+    { "sxga",     1280,1024 },
+    { "qsxga",    2560,2048 },
+    { "hsxga",    5120,4096 },
+    { "wvga",      852, 480 },
+    { "wxga",     1366, 768 },
+    { "wsxga",    1600,1024 },
+    { "wuxga",    1920,1200 },
+    { "woxga",    2560,1600 },
+    { "wqsxga",   3200,2048 },
+    { "wquxga",   3840,2400 },
+    { "whsxga",   6400,4096 },
+    { "whuxga",   7680,4800 },
+    { "cga",       320, 200 },
+    { "ega",       640, 350 },
+    { "hd480",     852, 480 },
+    { "hd720",    1280, 720 },
+    { "hd1080",   1920,1080 },
+    { "2k",       2048,1080 }, /* Digital Cinema System Specification */
+    { "2kdci",    2048,1080 },
+    { "2kflat",   1998,1080 },
+    { "2kscope",  2048, 858 },
+    { "4k",       4096,2160 }, /* Digital Cinema System Specification */
+    { "4kdci",    4096,2160 },
+    { "4kflat",   3996,2160 },
+    { "4kscope",  4096,1716 },
+    { "nhd",       640,360  },
+    { "hqvga",     240,160  },
+    { "wqvga",     400,240  },
+    { "fwqvga",    432,240  },
+    { "hvga",      480,320  },
+    { "qhd",       960,540  },
+    { "uhd2160",  3840,2160 },
+    { "uhd4320",  7680,4320 },
+};
+
+static const VideoRateAbbr video_rate_abbrs[]= {
+    { "ntsc",      { 30000, 1001 } },
+    { "pal",       {    25,    1 } },
+    { "qntsc",     { 30000, 1001 } }, /* VCD compliant NTSC */
+    { "qpal",      {    25,    1 } }, /* VCD compliant PAL */
+    { "sntsc",     { 30000, 1001 } }, /* square pixel NTSC */
+    { "spal",      {    25,    1 } }, /* square pixel PAL */
+    { "film",      {    24,    1 } },
+    { "ntsc-film", { 24000, 1001 } },
+};
+
+static const char *months[12] = {
+    "january", "february", "march", "april", "may", "june", "july", "august",
+    "september", "october", "november", "december"
+};
+
+int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str)
+{
+    int i;
+    int n = FF_ARRAY_ELEMS(video_size_abbrs);
+    const char *p;
+    int width = 0, height = 0;
+
+    for (i = 0; i < n; i++) {
+        if (!strcmp(video_size_abbrs[i].abbr, str)) {
+            width  = video_size_abbrs[i].width;
+            height = video_size_abbrs[i].height;
+            break;
+        }
+    }
+    if (i == n) {
+        width = strtol(str, (void*)&p, 10);
+        if (*p)
+            p++;
+        height = strtol(p, (void*)&p, 10);
+
+        /* trailing extraneous data detected, like in 123x345foobar */
+        if (*p)
+            return AVERROR(EINVAL);
+    }
+    if (width <= 0 || height <= 0)
+        return AVERROR(EINVAL);
+    *width_ptr  = width;
+    *height_ptr = height;
+    return 0;
+}
+
+int av_parse_video_rate(AVRational *rate, const char *arg)
+{
+    int i, ret;
+    int n = FF_ARRAY_ELEMS(video_rate_abbrs);
+
+    /* First, we check our abbreviation table */
+    for (i = 0; i < n; ++i)
+        if (!strcmp(video_rate_abbrs[i].abbr, arg)) {
+            *rate = video_rate_abbrs[i].rate;
+            return 0;
+        }
+
+    /* Then, we try to parse it as fraction */
+    if ((ret = av_parse_ratio_quiet(rate, arg, 1001000)) < 0)
+        return ret;
+    if (rate->num <= 0 || rate->den <= 0)
+        return AVERROR(EINVAL);
+    return 0;
+}
+
+typedef struct ColorEntry {
+    const char *name;            ///< a string representing the name of the color
+    uint8_t     rgb_color[3];    ///< RGB values for the color
+} ColorEntry;
+
+static const ColorEntry color_table[] = {
+    { "AliceBlue",            { 0xF0, 0xF8, 0xFF } },
+    { "AntiqueWhite",         { 0xFA, 0xEB, 0xD7 } },
+    { "Aqua",                 { 0x00, 0xFF, 0xFF } },
+    { "Aquamarine",           { 0x7F, 0xFF, 0xD4 } },
+    { "Azure",                { 0xF0, 0xFF, 0xFF } },
+    { "Beige",                { 0xF5, 0xF5, 0xDC } },
+    { "Bisque",               { 0xFF, 0xE4, 0xC4 } },
+    { "Black",                { 0x00, 0x00, 0x00 } },
+    { "BlanchedAlmond",       { 0xFF, 0xEB, 0xCD } },
+    { "Blue",                 { 0x00, 0x00, 0xFF } },
+    { "BlueViolet",           { 0x8A, 0x2B, 0xE2 } },
+    { "Brown",                { 0xA5, 0x2A, 0x2A } },
+    { "BurlyWood",            { 0xDE, 0xB8, 0x87 } },
+    { "CadetBlue",            { 0x5F, 0x9E, 0xA0 } },
+    { "Chartreuse",           { 0x7F, 0xFF, 0x00 } },
+    { "Chocolate",            { 0xD2, 0x69, 0x1E } },
+    { "Coral",                { 0xFF, 0x7F, 0x50 } },
+    { "CornflowerBlue",       { 0x64, 0x95, 0xED } },
+    { "Cornsilk",             { 0xFF, 0xF8, 0xDC } },
+    { "Crimson",              { 0xDC, 0x14, 0x3C } },
+    { "Cyan",                 { 0x00, 0xFF, 0xFF } },
+    { "DarkBlue",             { 0x00, 0x00, 0x8B } },
+    { "DarkCyan",             { 0x00, 0x8B, 0x8B } },
+    { "DarkGoldenRod",        { 0xB8, 0x86, 0x0B } },
+    { "DarkGray",             { 0xA9, 0xA9, 0xA9 } },
+    { "DarkGreen",            { 0x00, 0x64, 0x00 } },
+    { "DarkKhaki",            { 0xBD, 0xB7, 0x6B } },
+    { "DarkMagenta",          { 0x8B, 0x00, 0x8B } },
+    { "DarkOliveGreen",       { 0x55, 0x6B, 0x2F } },
+    { "Darkorange",           { 0xFF, 0x8C, 0x00 } },
+    { "DarkOrchid",           { 0x99, 0x32, 0xCC } },
+    { "DarkRed",              { 0x8B, 0x00, 0x00 } },
+    { "DarkSalmon",           { 0xE9, 0x96, 0x7A } },
+    { "DarkSeaGreen",         { 0x8F, 0xBC, 0x8F } },
+    { "DarkSlateBlue",        { 0x48, 0x3D, 0x8B } },
+    { "DarkSlateGray",        { 0x2F, 0x4F, 0x4F } },
+    { "DarkTurquoise",        { 0x00, 0xCE, 0xD1 } },
+    { "DarkViolet",           { 0x94, 0x00, 0xD3 } },
+    { "DeepPink",             { 0xFF, 0x14, 0x93 } },
+    { "DeepSkyBlue",          { 0x00, 0xBF, 0xFF } },
+    { "DimGray",              { 0x69, 0x69, 0x69 } },
+    { "DodgerBlue",           { 0x1E, 0x90, 0xFF } },
+    { "FireBrick",            { 0xB2, 0x22, 0x22 } },
+    { "FloralWhite",          { 0xFF, 0xFA, 0xF0 } },
+    { "ForestGreen",          { 0x22, 0x8B, 0x22 } },
+    { "Fuchsia",              { 0xFF, 0x00, 0xFF } },
+    { "Gainsboro",            { 0xDC, 0xDC, 0xDC } },
+    { "GhostWhite",           { 0xF8, 0xF8, 0xFF } },
+    { "Gold",                 { 0xFF, 0xD7, 0x00 } },
+    { "GoldenRod",            { 0xDA, 0xA5, 0x20 } },
+    { "Gray",                 { 0x80, 0x80, 0x80 } },
+    { "Green",                { 0x00, 0x80, 0x00 } },
+    { "GreenYellow",          { 0xAD, 0xFF, 0x2F } },
+    { "HoneyDew",             { 0xF0, 0xFF, 0xF0 } },
+    { "HotPink",              { 0xFF, 0x69, 0xB4 } },
+    { "IndianRed",            { 0xCD, 0x5C, 0x5C } },
+    { "Indigo",               { 0x4B, 0x00, 0x82 } },
+    { "Ivory",                { 0xFF, 0xFF, 0xF0 } },
+    { "Khaki",                { 0xF0, 0xE6, 0x8C } },
+    { "Lavender",             { 0xE6, 0xE6, 0xFA } },
+    { "LavenderBlush",        { 0xFF, 0xF0, 0xF5 } },
+    { "LawnGreen",            { 0x7C, 0xFC, 0x00 } },
+    { "LemonChiffon",         { 0xFF, 0xFA, 0xCD } },
+    { "LightBlue",            { 0xAD, 0xD8, 0xE6 } },
+    { "LightCoral",           { 0xF0, 0x80, 0x80 } },
+    { "LightCyan",            { 0xE0, 0xFF, 0xFF } },
+    { "LightGoldenRodYellow", { 0xFA, 0xFA, 0xD2 } },
+    { "LightGreen",           { 0x90, 0xEE, 0x90 } },
+    { "LightGrey",            { 0xD3, 0xD3, 0xD3 } },
+    { "LightPink",            { 0xFF, 0xB6, 0xC1 } },
+    { "LightSalmon",          { 0xFF, 0xA0, 0x7A } },
+    { "LightSeaGreen",        { 0x20, 0xB2, 0xAA } },
+    { "LightSkyBlue",         { 0x87, 0xCE, 0xFA } },
+    { "LightSlateGray",       { 0x77, 0x88, 0x99 } },
+    { "LightSteelBlue",       { 0xB0, 0xC4, 0xDE } },
+    { "LightYellow",          { 0xFF, 0xFF, 0xE0 } },
+    { "Lime",                 { 0x00, 0xFF, 0x00 } },
+    { "LimeGreen",            { 0x32, 0xCD, 0x32 } },
+    { "Linen",                { 0xFA, 0xF0, 0xE6 } },
+    { "Magenta",              { 0xFF, 0x00, 0xFF } },
+    { "Maroon",               { 0x80, 0x00, 0x00 } },
+    { "MediumAquaMarine",     { 0x66, 0xCD, 0xAA } },
+    { "MediumBlue",           { 0x00, 0x00, 0xCD } },
+    { "MediumOrchid",         { 0xBA, 0x55, 0xD3 } },
+    { "MediumPurple",         { 0x93, 0x70, 0xD8 } },
+    { "MediumSeaGreen",       { 0x3C, 0xB3, 0x71 } },
+    { "MediumSlateBlue",      { 0x7B, 0x68, 0xEE } },
+    { "MediumSpringGreen",    { 0x00, 0xFA, 0x9A } },
+    { "MediumTurquoise",      { 0x48, 0xD1, 0xCC } },
+    { "MediumVioletRed",      { 0xC7, 0x15, 0x85 } },
+    { "MidnightBlue",         { 0x19, 0x19, 0x70 } },
+    { "MintCream",            { 0xF5, 0xFF, 0xFA } },
+    { "MistyRose",            { 0xFF, 0xE4, 0xE1 } },
+    { "Moccasin",             { 0xFF, 0xE4, 0xB5 } },
+    { "NavajoWhite",          { 0xFF, 0xDE, 0xAD } },
+    { "Navy",                 { 0x00, 0x00, 0x80 } },
+    { "OldLace",              { 0xFD, 0xF5, 0xE6 } },
+    { "Olive",                { 0x80, 0x80, 0x00 } },
+    { "OliveDrab",            { 0x6B, 0x8E, 0x23 } },
+    { "Orange",               { 0xFF, 0xA5, 0x00 } },
+    { "OrangeRed",            { 0xFF, 0x45, 0x00 } },
+    { "Orchid",               { 0xDA, 0x70, 0xD6 } },
+    { "PaleGoldenRod",        { 0xEE, 0xE8, 0xAA } },
+    { "PaleGreen",            { 0x98, 0xFB, 0x98 } },
+    { "PaleTurquoise",        { 0xAF, 0xEE, 0xEE } },
+    { "PaleVioletRed",        { 0xD8, 0x70, 0x93 } },
+    { "PapayaWhip",           { 0xFF, 0xEF, 0xD5 } },
+    { "PeachPuff",            { 0xFF, 0xDA, 0xB9 } },
+    { "Peru",                 { 0xCD, 0x85, 0x3F } },
+    { "Pink",                 { 0xFF, 0xC0, 0xCB } },
+    { "Plum",                 { 0xDD, 0xA0, 0xDD } },
+    { "PowderBlue",           { 0xB0, 0xE0, 0xE6 } },
+    { "Purple",               { 0x80, 0x00, 0x80 } },
+    { "Red",                  { 0xFF, 0x00, 0x00 } },
+    { "RosyBrown",            { 0xBC, 0x8F, 0x8F } },
+    { "RoyalBlue",            { 0x41, 0x69, 0xE1 } },
+    { "SaddleBrown",          { 0x8B, 0x45, 0x13 } },
+    { "Salmon",               { 0xFA, 0x80, 0x72 } },
+    { "SandyBrown",           { 0xF4, 0xA4, 0x60 } },
+    { "SeaGreen",             { 0x2E, 0x8B, 0x57 } },
+    { "SeaShell",             { 0xFF, 0xF5, 0xEE } },
+    { "Sienna",               { 0xA0, 0x52, 0x2D } },
+    { "Silver",               { 0xC0, 0xC0, 0xC0 } },
+    { "SkyBlue",              { 0x87, 0xCE, 0xEB } },
+    { "SlateBlue",            { 0x6A, 0x5A, 0xCD } },
+    { "SlateGray",            { 0x70, 0x80, 0x90 } },
+    { "Snow",                 { 0xFF, 0xFA, 0xFA } },
+    { "SpringGreen",          { 0x00, 0xFF, 0x7F } },
+    { "SteelBlue",            { 0x46, 0x82, 0xB4 } },
+    { "Tan",                  { 0xD2, 0xB4, 0x8C } },
+    { "Teal",                 { 0x00, 0x80, 0x80 } },
+    { "Thistle",              { 0xD8, 0xBF, 0xD8 } },
+    { "Tomato",               { 0xFF, 0x63, 0x47 } },
+    { "Turquoise",            { 0x40, 0xE0, 0xD0 } },
+    { "Violet",               { 0xEE, 0x82, 0xEE } },
+    { "Wheat",                { 0xF5, 0xDE, 0xB3 } },
+    { "White",                { 0xFF, 0xFF, 0xFF } },
+    { "WhiteSmoke",           { 0xF5, 0xF5, 0xF5 } },
+    { "Yellow",               { 0xFF, 0xFF, 0x00 } },
+    { "YellowGreen",          { 0x9A, 0xCD, 0x32 } },
+};
+
+static int color_table_compare(const void *lhs, const void *rhs)
+{
+    return av_strcasecmp(lhs, ((const ColorEntry *)rhs)->name);
+}
+
+#define ALPHA_SEP '@'
+
+int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen,
+                   void *log_ctx)
+{
+    char *tail, color_string2[128];
+    const ColorEntry *entry;
+    int len, hex_offset = 0;
+
+    if (color_string[0] == '#') {
+        hex_offset = 1;
+    } else if (!strncmp(color_string, "0x", 2))
+        hex_offset = 2;
+
+    if (slen < 0)
+        slen = strlen(color_string);
+    av_strlcpy(color_string2, color_string + hex_offset,
+               FFMIN(slen-hex_offset+1, sizeof(color_string2)));
+    if ((tail = strchr(color_string2, ALPHA_SEP)))
+        *tail++ = 0;
+    len = strlen(color_string2);
+    rgba_color[3] = 255;
+
+    if (!av_strcasecmp(color_string2, "random") || !av_strcasecmp(color_string2, "bikeshed")) {
+        int rgba = av_get_random_seed();
+        rgba_color[0] = rgba >> 24;
+        rgba_color[1] = rgba >> 16;
+        rgba_color[2] = rgba >> 8;
+        rgba_color[3] = rgba;
+    } else if (hex_offset ||
+               strspn(color_string2, "0123456789ABCDEFabcdef") == len) {
+        char *tail;
+        unsigned int rgba = strtoul(color_string2, &tail, 16);
+
+        if (*tail || (len != 6 && len != 8)) {
+            av_log(log_ctx, AV_LOG_ERROR, "Invalid 0xRRGGBB[AA] color string: '%s'\n", color_string2);
+            return AVERROR(EINVAL);
+        }
+        if (len == 8) {
+            rgba_color[3] = rgba;
+            rgba >>= 8;
+        }
+        rgba_color[0] = rgba >> 16;
+        rgba_color[1] = rgba >> 8;
+        rgba_color[2] = rgba;
+    } else {
+        entry = bsearch(color_string2,
+                        color_table,
+                        FF_ARRAY_ELEMS(color_table),
+                        sizeof(ColorEntry),
+                        color_table_compare);
+        if (!entry) {
+            av_log(log_ctx, AV_LOG_ERROR, "Cannot find color '%s'\n", color_string2);
+            return AVERROR(EINVAL);
+        }
+        memcpy(rgba_color, entry->rgb_color, 3);
+    }
+
+    if (tail) {
+        double alpha;
+        const char *alpha_string = tail;
+        if (!strncmp(alpha_string, "0x", 2)) {
+            alpha = strtoul(alpha_string, &tail, 16);
+        } else {
+            double norm_alpha = strtod(alpha_string, &tail);
+            if (norm_alpha < 0.0 || norm_alpha > 1.0)
+                alpha = 256;
+            else
+                alpha = 255 * norm_alpha;
+        }
+
+        if (tail == alpha_string || *tail || alpha > 255 || alpha < 0) {
+            av_log(log_ctx, AV_LOG_ERROR, "Invalid alpha value specifier '%s' in '%s'\n",
+                   alpha_string, color_string);
+            return AVERROR(EINVAL);
+        }
+        rgba_color[3] = alpha;
+    }
+
+    return 0;
+}
+
+const char *av_get_known_color_name(int color_idx, const uint8_t **rgbp)
+{
+    const ColorEntry *color;
+
+    if ((unsigned)color_idx >= FF_ARRAY_ELEMS(color_table))
+        return NULL;
+
+    color = &color_table[color_idx];
+    if (rgbp)
+        *rgbp = color->rgb_color;
+
+    return color->name;
+}
+
+/* get a positive number between n_min and n_max, for a maximum length
+   of len_max. Return -1 if error. */
+static int date_get_num(const char **pp,
+                        int n_min, int n_max, int len_max)
+{
+    int i, val, c;
+    const char *p;
+
+    p = *pp;
+    val = 0;
+    for(i = 0; i < len_max; i++) {
+        c = *p;
+        if (!av_isdigit(c))
+            break;
+        val = (val * 10) + c - '0';
+        p++;
+    }
+    /* no number read ? */
+    if (p == *pp)
+        return -1;
+    if (val < n_min || val > n_max)
+        return -1;
+    *pp = p;
+    return val;
+}
+
+static int date_get_month(const char **pp) {
+    int i = 0;
+    for (; i < 12; i++) {
+        if (!av_strncasecmp(*pp, months[i], 3)) {
+            const char *mo_full = months[i] + 3;
+            int len = strlen(mo_full);
+            *pp += 3;
+            if (len > 0 && !av_strncasecmp(*pp, mo_full, len))
+                *pp += len;
+            return i;
+        }
+    }
+    return -1;
+}
+
+char *av_small_strptime(const char *p, const char *fmt, struct tm *dt)
+{
+    int c, val;
+
+    while((c = *fmt++)) {
+        if (c != '%') {
+            if (av_isspace(c))
+                for (; *p && av_isspace(*p); p++);
+            else if (*p != c)
+                return NULL;
+            else p++;
+            continue;
+        }
+
+        c = *fmt++;
+        switch(c) {
+        case 'H':
+        case 'J':
+            val = date_get_num(&p, 0, c == 'H' ? 23 : INT_MAX, c == 'H' ? 2 : 4);
+
+            if (val == -1)
+                return NULL;
+            dt->tm_hour = val;
+            break;
+        case 'M':
+            val = date_get_num(&p, 0, 59, 2);
+            if (val == -1)
+                return NULL;
+            dt->tm_min = val;
+            break;
+        case 'S':
+            val = date_get_num(&p, 0, 59, 2);
+            if (val == -1)
+                return NULL;
+            dt->tm_sec = val;
+            break;
+        case 'Y':
+            val = date_get_num(&p, 0, 9999, 4);
+            if (val == -1)
+                return NULL;
+            dt->tm_year = val - 1900;
+            break;
+        case 'm':
+            val = date_get_num(&p, 1, 12, 2);
+            if (val == -1)
+                return NULL;
+            dt->tm_mon = val - 1;
+            break;
+        case 'd':
+            val = date_get_num(&p, 1, 31, 2);
+            if (val == -1)
+                return NULL;
+            dt->tm_mday = val;
+            break;
+        case 'T':
+            p = av_small_strptime(p, "%H:%M:%S", dt);
+            if (!p)
+                return NULL;
+            break;
+        case 'b':
+        case 'B':
+        case 'h':
+            val = date_get_month(&p);
+            if (val == -1)
+                return NULL;
+            dt->tm_mon = val;
+            break;
+        case '%':
+            if (*p++ != '%')
+                return NULL;
+            break;
+        default:
+            return NULL;
+        }
+    }
+
+    return (char*)p;
+}
+
+time_t av_timegm(struct tm *tm)
+{
+    time_t t;
+
+    int y = tm->tm_year + 1900, m = tm->tm_mon + 1, d = tm->tm_mday;
+
+    if (m < 3) {
+        m += 12;
+        y--;
+    }
+
+    t = 86400LL *
+        (d + (153 * m - 457) / 5 + 365 * y + y / 4 - y / 100 + y / 400 - 719469);
+
+    t += 3600 * tm->tm_hour + 60 * tm->tm_min + tm->tm_sec;
+
+    return t;
+}
+
+int av_parse_time(int64_t *timeval, const char *timestr, int duration)
+{
+    const char *p, *q;
+    int64_t t, now64;
+    time_t now;
+    struct tm dt = { 0 }, tmbuf;
+    int today = 0, negative = 0, microseconds = 0, suffix = 1000000;
+    int i;
+    static const char * const date_fmt[] = {
+        "%Y - %m - %d",
+        "%Y%m%d",
+    };
+    static const char * const time_fmt[] = {
+        "%H:%M:%S",
+        "%H%M%S",
+    };
+    static const char * const tz_fmt[] = {
+        "%H:%M",
+        "%H%M",
+        "%H",
+    };
+
+    p = timestr;
+    q = NULL;
+    *timeval = INT64_MIN;
+    if (!duration) {
+        now64 = av_gettime();
+        now = now64 / 1000000;
+
+        if (!av_strcasecmp(timestr, "now")) {
+            *timeval = now64;
+            return 0;
+        }
+
+        /* parse the year-month-day part */
+        for (i = 0; i < FF_ARRAY_ELEMS(date_fmt); i++) {
+            q = av_small_strptime(p, date_fmt[i], &dt);
+            if (q)
+                break;
+        }
+
+        /* if the year-month-day part is missing, then take the
+         * current year-month-day time */
+        if (!q) {
+            today = 1;
+            q = p;
+        }
+        p = q;
+
+        if (*p == 'T' || *p == 't')
+            p++;
+        else
+            while (av_isspace(*p))
+                p++;
+
+        /* parse the hour-minute-second part */
+        for (i = 0; i < FF_ARRAY_ELEMS(time_fmt); i++) {
+            q = av_small_strptime(p, time_fmt[i], &dt);
+            if (q)
+                break;
+        }
+    } else {
+        /* parse timestr as a duration */
+        if (p[0] == '-') {
+            negative = 1;
+            ++p;
+        }
+        /* parse timestr as HH:MM:SS */
+        q = av_small_strptime(p, "%J:%M:%S", &dt);
+        if (!q) {
+            /* parse timestr as MM:SS */
+            q = av_small_strptime(p, "%M:%S", &dt);
+            dt.tm_hour = 0;
+        }
+        if (!q) {
+            char *o;
+            /* parse timestr as S+ */
+            errno = 0;
+            t = strtoll(p, &o, 10);
+            if (o == p) /* the parsing didn't succeed */
+                return AVERROR(EINVAL);
+            if (errno == ERANGE)
+                return AVERROR(ERANGE);
+            q = o;
+        } else {
+            t = dt.tm_hour * 3600 + dt.tm_min * 60 + dt.tm_sec;
+        }
+    }
+
+    /* Now we have all the fields that we can get */
+    if (!q)
+        return AVERROR(EINVAL);
+
+    /* parse the .m... part */
+    if (*q == '.') {
+        int n;
+        q++;
+        for (n = 100000; n >= 1; n /= 10, q++) {
+            if (!av_isdigit(*q))
+                break;
+            microseconds += n * (*q - '0');
+        }
+        while (av_isdigit(*q))
+            q++;
+    }
+
+    if (duration) {
+        if (q[0] == 'm' && q[1] == 's') {
+            suffix = 1000;
+            microseconds /= 1000;
+            q += 2;
+        } else if (q[0] == 'u' && q[1] == 's') {
+            suffix = 1;
+            microseconds = 0;
+            q += 2;
+        } else if (*q == 's')
+            q++;
+    } else {
+        int is_utc = *q == 'Z' || *q == 'z';
+        int tzoffset = 0;
+        q += is_utc;
+        if (!today && !is_utc && (*q == '+' || *q == '-')) {
+            struct tm tz = { 0 };
+            int sign = (*q == '+' ? -1 : 1);
+            q++;
+            p = q;
+            for (i = 0; i < FF_ARRAY_ELEMS(tz_fmt); i++) {
+                q = av_small_strptime(p, tz_fmt[i], &tz);
+                if (q)
+                    break;
+            }
+            if (!q)
+                return AVERROR(EINVAL);
+            tzoffset = sign * (tz.tm_hour * 60 + tz.tm_min) * 60;
+            is_utc = 1;
+        }
+        if (today) { /* fill in today's date */
+            struct tm dt2 = is_utc ? *gmtime_r(&now, &tmbuf) : *localtime_r(&now, &tmbuf);
+            dt2.tm_hour = dt.tm_hour;
+            dt2.tm_min  = dt.tm_min;
+            dt2.tm_sec  = dt.tm_sec;
+            dt = dt2;
+        }
+        dt.tm_isdst = is_utc ? 0 : -1;
+        t = is_utc ? av_timegm(&dt) : mktime(&dt);
+        t += tzoffset;
+    }
+
+    /* Check that we are at the end of the string */
+    if (*q)
+        return AVERROR(EINVAL);
+
+    if (INT64_MAX / suffix < t)
+        return AVERROR(ERANGE);
+    t *= suffix;
+    if (INT64_MAX - microseconds < t)
+        return AVERROR(ERANGE);
+    t += microseconds;
+    *timeval = negative ? -t : t;
+    return 0;
+}
+
+int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info)
+{
+    const char *p;
+    char tag[128], *q;
+
+    p = info;
+    if (*p == '?')
+        p++;
+    for(;;) {
+        q = tag;
+        while (*p != '\0' && *p != '=' && *p != '&') {
+            if ((q - tag) < sizeof(tag) - 1)
+                *q++ = *p;
+            p++;
+        }
+        *q = '\0';
+        q = arg;
+        if (*p == '=') {
+            p++;
+            while (*p != '&' && *p != '\0') {
+                if ((q - arg) < arg_size - 1) {
+                    if (*p == '+')
+                        *q++ = ' ';
+                    else
+                        *q++ = *p;
+                }
+                p++;
+            }
+        }
+        *q = '\0';
+        if (!strcmp(tag, tag1))
+            return 1;
+        if (*p != '&')
+            break;
+        p++;
+    }
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/parseutils.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/parseutils.h
new file mode 100644
index 000000000..e66d24b76
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/parseutils.h
@@ -0,0 +1,193 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_PARSEUTILS_H
+#define AVUTIL_PARSEUTILS_H
+
+#include <time.h>
+
+#include "rational.h"
+
+/**
+ * @file
+ * misc parsing utilities
+ */
+
+/**
+ * Parse str and store the parsed ratio in q.
+ *
+ * Note that a ratio with infinite (1/0) or negative value is
+ * considered valid, so you should check on the returned value if you
+ * want to exclude those values.
+ *
+ * The undefined value can be expressed using the "0:0" string.
+ *
+ * @param[in,out] q pointer to the AVRational which will contain the ratio
+ * @param[in] str the string to parse: it has to be a string in the format
+ * num:den, a float number or an expression
+ * @param[in] max the maximum allowed numerator and denominator
+ * @param[in] log_offset log level offset which is applied to the log
+ * level of log_ctx
+ * @param[in] log_ctx parent logging context
+ * @return >= 0 on success, a negative error code otherwise
+ */
+int av_parse_ratio(AVRational *q, const char *str, int max,
+                   int log_offset, void *log_ctx);
+
+#define av_parse_ratio_quiet(rate, str, max) \
+    av_parse_ratio(rate, str, max, AV_LOG_MAX_OFFSET, NULL)
+
+/**
+ * Parse str and put in width_ptr and height_ptr the detected values.
+ *
+ * @param[in,out] width_ptr pointer to the variable which will contain the detected
+ * width value
+ * @param[in,out] height_ptr pointer to the variable which will contain the detected
+ * height value
+ * @param[in] str the string to parse: it has to be a string in the format
+ * width x height or a valid video size abbreviation.
+ * @return >= 0 on success, a negative error code otherwise
+ */
+int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str);
+
+/**
+ * Parse str and store the detected values in *rate.
+ *
+ * @param[in,out] rate pointer to the AVRational which will contain the detected
+ * frame rate
+ * @param[in] str the string to parse: it has to be a string in the format
+ * rate_num / rate_den, a float number or a valid video rate abbreviation
+ * @return >= 0 on success, a negative error code otherwise
+ */
+int av_parse_video_rate(AVRational *rate, const char *str);
+
+/**
+ * Put the RGBA values that correspond to color_string in rgba_color.
+ *
+ * @param color_string a string specifying a color. It can be the name of
+ * a color (case insensitive match) or a [0x|#]RRGGBB[AA] sequence,
+ * possibly followed by "@" and a string representing the alpha
+ * component.
+ * The alpha component may be a string composed by "0x" followed by an
+ * hexadecimal number or a decimal number between 0.0 and 1.0, which
+ * represents the opacity value (0x00/0.0 means completely transparent,
+ * 0xff/1.0 completely opaque).
+ * If the alpha component is not specified then 0xff is assumed.
+ * The string "random" will result in a random color.
+ * @param slen length of the initial part of color_string containing the
+ * color. It can be set to -1 if color_string is a null terminated string
+ * containing nothing else than the color.
+ * @return >= 0 in case of success, a negative value in case of
+ * failure (for example if color_string cannot be parsed).
+ */
+int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen,
+                   void *log_ctx);
+
+/**
+ * Get the name of a color from the internal table of hard-coded named
+ * colors.
+ *
+ * This function is meant to enumerate the color names recognized by
+ * av_parse_color().
+ *
+ * @param color_idx index of the requested color, starting from 0
+ * @param rgbp      if not NULL, will point to a 3-elements array with the color value in RGB
+ * @return the color name string or NULL if color_idx is not in the array
+ */
+const char *av_get_known_color_name(int color_idx, const uint8_t **rgb);
+
+/**
+ * Parse timestr and return in *time a corresponding number of
+ * microseconds.
+ *
+ * @param timeval puts here the number of microseconds corresponding
+ * to the string in timestr. If the string represents a duration, it
+ * is the number of microseconds contained in the time interval.  If
+ * the string is a date, is the number of microseconds since 1st of
+ * January, 1970 up to the time of the parsed date.  If timestr cannot
+ * be successfully parsed, set *time to INT64_MIN.
+
+ * @param timestr a string representing a date or a duration.
+ * - If a date the syntax is:
+ * @code
+ * [{YYYY-MM-DD|YYYYMMDD}[T|t| ]]{{HH:MM:SS[.m...]]]}|{HHMMSS[.m...]]]}}[Z]
+ * now
+ * @endcode
+ * If the value is "now" it takes the current time.
+ * Time is local time unless Z is appended, in which case it is
+ * interpreted as UTC.
+ * If the year-month-day part is not specified it takes the current
+ * year-month-day.
+ * - If a duration the syntax is:
+ * @code
+ * [-][HH:]MM:SS[.m...]
+ * [-]S+[.m...]
+ * @endcode
+ * @param duration flag which tells how to interpret timestr, if not
+ * zero timestr is interpreted as a duration, otherwise as a date
+ * @return >= 0 in case of success, a negative value corresponding to an
+ * AVERROR code otherwise
+ */
+int av_parse_time(int64_t *timeval, const char *timestr, int duration);
+
+/**
+ * Attempt to find a specific tag in a URL.
+ *
+ * syntax: '?tag1=val1&tag2=val2...'. Little URL decoding is done.
+ * Return 1 if found.
+ */
+int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
+
+/**
+ * Simplified version of strptime
+ *
+ * Parse the input string p according to the format string fmt and
+ * store its results in the structure dt.
+ * This implementation supports only a subset of the formats supported
+ * by the standard strptime().
+ *
+ * The supported input field descriptors are listed below.
+ * - %H: the hour as a decimal number, using a 24-hour clock, in the
+ *   range '00' through '23'
+ * - %J: hours as a decimal number, in the range '0' through INT_MAX
+ * - %M: the minute as a decimal number, using a 24-hour clock, in the
+ *   range '00' through '59'
+ * - %S: the second as a decimal number, using a 24-hour clock, in the
+ *   range '00' through '59'
+ * - %Y: the year as a decimal number, using the Gregorian calendar
+ * - %m: the month as a decimal number, in the range '1' through '12'
+ * - %d: the day of the month as a decimal number, in the range '1'
+ *   through '31'
+ * - %T: alias for '%H:%M:%S'
+ * - %%: a literal '%'
+ *
+ * @return a pointer to the first character not processed in this function
+ *         call. In case the input string contains more characters than
+ *         required by the format string the return value points right after
+ *         the last consumed input character. In case the whole input string
+ *         is consumed the return value points to the null byte at the end of
+ *         the string. On failure NULL is returned.
+ */
+char *av_small_strptime(const char *p, const char *fmt, struct tm *dt);
+
+/**
+ * Convert the decomposed UTC time in tm to a time_t value.
+ */
+time_t av_timegm(struct tm *tm);
+
+#endif /* AVUTIL_PARSEUTILS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixdesc.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixdesc.c
new file mode 100644
index 000000000..b97b0665b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixdesc.c
@@ -0,0 +1,2961 @@
+/*
+ * pixel format descriptor
+ * Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "avassert.h"
+#include "avstring.h"
+#include "common.h"
+#include "pixfmt.h"
+#include "pixdesc.h"
+#include "internal.h"
+#include "intreadwrite.h"
+#include "version.h"
+
+void av_read_image_line2(void *dst,
+                        const uint8_t *data[4], const int linesize[4],
+                        const AVPixFmtDescriptor *desc,
+                        int x, int y, int c, int w,
+                        int read_pal_component,
+                        int dst_element_size)
+{
+    AVComponentDescriptor comp = desc->comp[c];
+    int plane = comp.plane;
+    int depth = comp.depth;
+    unsigned mask  = (1ULL << depth) - 1;
+    int shift = comp.shift;
+    int step  = comp.step;
+    int flags = desc->flags;
+    uint16_t *dst16 = dst;
+    uint32_t *dst32 = dst;
+
+    if (flags & AV_PIX_FMT_FLAG_BITSTREAM) {
+        int skip = x * step + comp.offset;
+        const uint8_t *p = data[plane] + y * linesize[plane] + (skip >> 3);
+        int shift = 8 - depth - (skip & 7);
+
+        while (w--) {
+            int val = (*p >> shift) & mask;
+            if (read_pal_component)
+                val = data[1][4*val + c];
+            shift -= step;
+            p -= shift >> 3;
+            shift &= 7;
+            if (dst_element_size == 4) *dst32++ = val;
+            else                       *dst16++ = val;
+        }
+    } else {
+        const uint8_t *p = data[plane] + y * linesize[plane] +
+                           x * step + comp.offset;
+        int is_8bit = shift + depth <= 8;
+        int is_16bit= shift + depth <=16;
+
+        if (is_8bit)
+            p += !!(flags & AV_PIX_FMT_FLAG_BE);
+
+        while (w--) {
+            unsigned val;
+            if     (is_8bit)  val = *p;
+            else if(is_16bit) val = flags & AV_PIX_FMT_FLAG_BE ? AV_RB16(p) : AV_RL16(p);
+            else              val = flags & AV_PIX_FMT_FLAG_BE ? AV_RB32(p) : AV_RL32(p);
+            val = (val >> shift) & mask;
+            if (read_pal_component)
+                val = data[1][4 * val + c];
+            p += step;
+            if (dst_element_size == 4) *dst32++ = val;
+            else                       *dst16++ = val;
+        }
+    }
+}
+
+void av_read_image_line(uint16_t *dst,
+                        const uint8_t *data[4], const int linesize[4],
+                        const AVPixFmtDescriptor *desc,
+                        int x, int y, int c, int w,
+                        int read_pal_component)
+{
+    av_read_image_line2(dst, data, linesize, desc,x, y, c, w,
+                        read_pal_component,
+                        2);
+}
+
+void av_write_image_line2(const void *src,
+                         uint8_t *data[4], const int linesize[4],
+                         const AVPixFmtDescriptor *desc,
+                         int x, int y, int c, int w, int src_element_size)
+{
+    AVComponentDescriptor comp = desc->comp[c];
+    int plane = comp.plane;
+    int depth = comp.depth;
+    int step  = comp.step;
+    int flags = desc->flags;
+    const uint32_t *src32 = src;
+    const uint16_t *src16 = src;
+
+    if (flags & AV_PIX_FMT_FLAG_BITSTREAM) {
+        int skip = x * step + comp.offset;
+        uint8_t *p = data[plane] + y * linesize[plane] + (skip >> 3);
+        int shift = 8 - depth - (skip & 7);
+
+        while (w--) {
+            *p |= (src_element_size == 4 ? *src32++ : *src16++) << shift;
+            shift -= step;
+            p -= shift >> 3;
+            shift &= 7;
+        }
+    } else {
+        int shift = comp.shift;
+        uint8_t *p = data[plane] + y * linesize[plane] +
+                     x * step + comp.offset;
+
+        if (shift + depth <= 8) {
+            p += !!(flags & AV_PIX_FMT_FLAG_BE);
+            while (w--) {
+                *p |= ((src_element_size == 4 ? *src32++ : *src16++) << shift);
+                p += step;
+            }
+        } else {
+            while (w--) {
+                unsigned s = (src_element_size == 4 ? *src32++ : *src16++);
+                if (shift + depth <= 16) {
+                    if (flags & AV_PIX_FMT_FLAG_BE) {
+                        uint16_t val = AV_RB16(p) | (s << shift);
+                        AV_WB16(p, val);
+                    } else {
+                        uint16_t val = AV_RL16(p) | (s << shift);
+                        AV_WL16(p, val);
+                    }
+                } else {
+                    if (flags & AV_PIX_FMT_FLAG_BE) {
+                        uint32_t val = AV_RB32(p) | (s << shift);
+                        AV_WB32(p, val);
+                    } else {
+                        uint32_t val = AV_RL32(p) | (s << shift);
+                        AV_WL32(p, val);
+                    }
+                }
+                p += step;
+            }
+        }
+    }
+}
+
+void av_write_image_line(const uint16_t *src,
+                         uint8_t *data[4], const int linesize[4],
+                         const AVPixFmtDescriptor *desc,
+                         int x, int y, int c, int w)
+{
+    av_write_image_line2(src, data, linesize, desc, x, y, c, w, 2);
+}
+
+#if FF_API_PLUS1_MINUS1
+FF_DISABLE_DEPRECATION_WARNINGS
+#endif
+static const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
+    [AV_PIX_FMT_YUV420P] = {
+        .name = "yuv420p",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUYV422] = {
+        .name = "yuyv422",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 8, 1, 7, 1 },        /* Y */
+            { 0, 4, 1, 0, 8, 3, 7, 2 },        /* U */
+            { 0, 4, 3, 0, 8, 3, 7, 4 },        /* V */
+        },
+    },
+    [AV_PIX_FMT_YVYU422] = {
+        .name = "yvyu422",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 8, 1, 7, 1 },        /* Y */
+            { 0, 4, 3, 0, 8, 3, 7, 4 },        /* U */
+            { 0, 4, 1, 0, 8, 3, 7, 2 },        /* V */
+        },
+    },
+    [AV_PIX_FMT_RGB24] = {
+        .name = "rgb24",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 3, 0, 0, 8, 2, 7, 1 },        /* R */
+            { 0, 3, 1, 0, 8, 2, 7, 2 },        /* G */
+            { 0, 3, 2, 0, 8, 2, 7, 3 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_BGR24] = {
+        .name = "bgr24",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 3, 2, 0, 8, 2, 7, 3 },        /* R */
+            { 0, 3, 1, 0, 8, 2, 7, 2 },        /* G */
+            { 0, 3, 0, 0, 8, 2, 7, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_YUV422P] = {
+        .name = "yuv422p",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV444P] = {
+        .name = "yuv444p",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV410P] = {
+        .name = "yuv410p",
+        .nb_components = 3,
+        .log2_chroma_w = 2,
+        .log2_chroma_h = 2,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV411P] = {
+        .name = "yuv411p",
+        .nb_components = 3,
+        .log2_chroma_w = 2,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUVJ411P] = {
+        .name = "yuvj411p",
+        .nb_components = 3,
+        .log2_chroma_w = 2,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_GRAY8] = {
+        .name = "gray",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+        },
+        .flags = FF_PSEUDOPAL,
+        .alias = "gray8,y8",
+    },
+    [AV_PIX_FMT_MONOWHITE] = {
+        .name = "monow",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 1, 0, 0, 1 },        /* Y */
+        },
+        .flags = AV_PIX_FMT_FLAG_BITSTREAM,
+    },
+    [AV_PIX_FMT_MONOBLACK] = {
+        .name = "monob",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 7, 1, 0, 0, 1 },        /* Y */
+        },
+        .flags = AV_PIX_FMT_FLAG_BITSTREAM,
+    },
+    [AV_PIX_FMT_PAL8] = {
+        .name = "pal8",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },
+        },
+        .flags = AV_PIX_FMT_FLAG_PAL | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVJ420P] = {
+        .name = "yuvj420p",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUVJ422P] = {
+        .name = "yuvj422p",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUVJ444P] = {
+        .name = "yuvj444p",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_XVMC] = {
+        .name = "xvmc",
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_UYVY422] = {
+        .name = "uyvy422",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 1, 0, 8, 1, 7, 2 },        /* Y */
+            { 0, 4, 0, 0, 8, 3, 7, 1 },        /* U */
+            { 0, 4, 2, 0, 8, 3, 7, 3 },        /* V */
+        },
+    },
+    [AV_PIX_FMT_UYYVYY411] = {
+        .name = "uyyvyy411",
+        .nb_components = 3,
+        .log2_chroma_w = 2,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 4, 1, 0, 8, 3, 7, 2 },        /* Y */
+            { 0, 6, 0, 0, 8, 5, 7, 1 },        /* U */
+            { 0, 6, 3, 0, 8, 5, 7, 4 },        /* V */
+        },
+    },
+    [AV_PIX_FMT_BGR8] = {
+        .name = "bgr8",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 3, 0, 2, 1 },        /* R */
+            { 0, 1, 0, 3, 3, 0, 2, 1 },        /* G */
+            { 0, 1, 0, 6, 2, 0, 1, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB | FF_PSEUDOPAL,
+    },
+    [AV_PIX_FMT_BGR4] = {
+        .name = "bgr4",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 4, 3, 0, 1, 3, 0, 4 },        /* R */
+            { 0, 4, 1, 0, 2, 3, 1, 2 },        /* G */
+            { 0, 4, 0, 0, 1, 3, 0, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BITSTREAM | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_BGR4_BYTE] = {
+        .name = "bgr4_byte",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 1, 0, 0, 1 },        /* R */
+            { 0, 1, 0, 1, 2, 0, 1, 1 },        /* G */
+            { 0, 1, 0, 3, 1, 0, 0, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB | FF_PSEUDOPAL,
+    },
+    [AV_PIX_FMT_RGB8] = {
+        .name = "rgb8",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 6, 2, 0, 1, 1 },        /* R */
+            { 0, 1, 0, 3, 3, 0, 2, 1 },        /* G */
+            { 0, 1, 0, 0, 3, 0, 2, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB | FF_PSEUDOPAL,
+    },
+    [AV_PIX_FMT_RGB4] = {
+        .name = "rgb4",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 4, 0, 0, 1, 3, 0, 1 },        /* R */
+            { 0, 4, 1, 0, 2, 3, 1, 2 },        /* G */
+            { 0, 4, 3, 0, 1, 3, 0, 4 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BITSTREAM | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_RGB4_BYTE] = {
+        .name = "rgb4_byte",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 3, 1, 0, 0, 1 },        /* R */
+            { 0, 1, 0, 1, 2, 0, 1, 1 },        /* G */
+            { 0, 1, 0, 0, 1, 0, 0, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB | FF_PSEUDOPAL,
+    },
+    [AV_PIX_FMT_NV12] = {
+        .name = "nv12",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 2, 0, 0, 8, 1, 7, 1 },        /* U */
+            { 1, 2, 1, 0, 8, 1, 7, 2 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_NV21] = {
+        .name = "nv21",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 2, 1, 0, 8, 1, 7, 2 },        /* U */
+            { 1, 2, 0, 0, 8, 1, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_ARGB] = {
+        .name = "argb",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 4, 1, 0, 8, 3, 7, 2 },        /* R */
+            { 0, 4, 2, 0, 8, 3, 7, 3 },        /* G */
+            { 0, 4, 3, 0, 8, 3, 7, 4 },        /* B */
+            { 0, 4, 0, 0, 8, 3, 7, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_RGBA] = {
+        .name = "rgba",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 4, 0, 0, 8, 3, 7, 1 },        /* R */
+            { 0, 4, 1, 0, 8, 3, 7, 2 },        /* G */
+            { 0, 4, 2, 0, 8, 3, 7, 3 },        /* B */
+            { 0, 4, 3, 0, 8, 3, 7, 4 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_ABGR] = {
+        .name = "abgr",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 4, 3, 0, 8, 3, 7, 4 },        /* R */
+            { 0, 4, 2, 0, 8, 3, 7, 3 },        /* G */
+            { 0, 4, 1, 0, 8, 3, 7, 2 },        /* B */
+            { 0, 4, 0, 0, 8, 3, 7, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_BGRA] = {
+        .name = "bgra",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 4, 2, 0, 8, 3, 7, 3 },        /* R */
+            { 0, 4, 1, 0, 8, 3, 7, 2 },        /* G */
+            { 0, 4, 0, 0, 8, 3, 7, 1 },        /* B */
+            { 0, 4, 3, 0, 8, 3, 7, 4 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_0RGB] = {
+        .name = "0rgb",
+        .nb_components= 3,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            { 0, 4, 1, 0, 8, 3, 7, 2 },        /* R */
+            { 0, 4, 2, 0, 8, 3, 7, 3 },        /* G */
+            { 0, 4, 3, 0, 8, 3, 7, 4 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_RGB0] = {
+        .name = "rgb0",
+        .nb_components= 3,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            { 0, 4, 0, 0, 8, 3, 7, 1 },        /* R */
+            { 0, 4, 1, 0, 8, 3, 7, 2 },        /* G */
+            { 0, 4, 2, 0, 8, 3, 7, 3 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_0BGR] = {
+        .name = "0bgr",
+        .nb_components= 3,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            { 0, 4, 3, 0, 8, 3, 7, 4 },        /* R */
+            { 0, 4, 2, 0, 8, 3, 7, 3 },        /* G */
+            { 0, 4, 1, 0, 8, 3, 7, 2 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_BGR0] = {
+        .name = "bgr0",
+        .nb_components= 3,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            { 0, 4, 2, 0, 8, 3, 7, 3 },        /* R */
+            { 0, 4, 1, 0, 8, 3, 7, 2 },        /* G */
+            { 0, 4, 0, 0, 8, 3, 7, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GRAY9BE] = {
+        .name = "gray9be",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },       /* Y */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE,
+        .alias = "y9be",
+    },
+    [AV_PIX_FMT_GRAY9LE] = {
+        .name = "gray9le",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },       /* Y */
+        },
+        .alias = "y9le",
+    },
+    [AV_PIX_FMT_GRAY10BE] = {
+        .name = "gray10be",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },       /* Y */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE,
+        .alias = "y10be",
+    },
+    [AV_PIX_FMT_GRAY10LE] = {
+        .name = "gray10le",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },       /* Y */
+        },
+        .alias = "y10le",
+    },
+    [AV_PIX_FMT_GRAY12BE] = {
+        .name = "gray12be",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },       /* Y */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE,
+        .alias = "y12be",
+    },
+    [AV_PIX_FMT_GRAY12LE] = {
+        .name = "gray12le",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },       /* Y */
+        },
+        .alias = "y12le",
+    },
+    [AV_PIX_FMT_GRAY14BE] = {
+        .name = "gray14be",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 14, 1, 13, 1 },       /* Y */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE,
+        .alias = "y14be",
+    },
+    [AV_PIX_FMT_GRAY14LE] = {
+        .name = "gray14le",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 14, 1, 13, 1 },       /* Y */
+        },
+        .alias = "y14le",
+    },
+    [AV_PIX_FMT_GRAY16BE] = {
+        .name = "gray16be",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },       /* Y */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE,
+        .alias = "y16be",
+    },
+    [AV_PIX_FMT_GRAY16LE] = {
+        .name = "gray16le",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },       /* Y */
+        },
+        .alias = "y16le",
+    },
+    [AV_PIX_FMT_YUV440P] = {
+        .name = "yuv440p",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUVJ440P] = {
+        .name = "yuvj440p",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV440P10LE] = {
+        .name = "yuv440p10le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV440P10BE] = {
+        .name = "yuv440p10be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV440P12LE] = {
+        .name = "yuv440p12le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* Y */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* U */
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV440P12BE] = {
+        .name = "yuv440p12be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* Y */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* U */
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUVA420P] = {
+        .name = "yuva420p",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+            { 3, 1, 0, 0, 8, 0, 7, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA422P] = {
+        .name = "yuva422p",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+            { 3, 1, 0, 0, 8, 0, 7, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA444P] = {
+        .name = "yuva444p",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* U */
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* V */
+            { 3, 1, 0, 0, 8, 0, 7, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA420P9BE] = {
+        .name = "yuva420p9be",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* Y */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* U */
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* V */
+            { 3, 2, 0, 0, 9, 1, 8, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA420P9LE] = {
+        .name = "yuva420p9le",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* Y */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* U */
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* V */
+            { 3, 2, 0, 0, 9, 1, 8, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA422P9BE] = {
+        .name = "yuva422p9be",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* Y */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* U */
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* V */
+            { 3, 2, 0, 0, 9, 1, 8, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA422P9LE] = {
+        .name = "yuva422p9le",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* Y */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* U */
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* V */
+            { 3, 2, 0, 0, 9, 1, 8, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA444P9BE] = {
+        .name = "yuva444p9be",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* Y */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* U */
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* V */
+            { 3, 2, 0, 0, 9, 1, 8, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA444P9LE] = {
+        .name = "yuva444p9le",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* Y */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* U */
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* V */
+            { 3, 2, 0, 0, 9, 1, 8, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA420P10BE] = {
+        .name = "yuva420p10be",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+            { 3, 2, 0, 0, 10, 1, 9, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA420P10LE] = {
+        .name = "yuva420p10le",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+            { 3, 2, 0, 0, 10, 1, 9, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA422P10BE] = {
+        .name = "yuva422p10be",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+            { 3, 2, 0, 0, 10, 1, 9, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA422P10LE] = {
+        .name = "yuva422p10le",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+            { 3, 2, 0, 0, 10, 1, 9, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA444P10BE] = {
+        .name = "yuva444p10be",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+            { 3, 2, 0, 0, 10, 1, 9, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA444P10LE] = {
+        .name = "yuva444p10le",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+            { 3, 2, 0, 0, 10, 1, 9, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA420P16BE] = {
+        .name = "yuva420p16be",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },        /* Y */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },        /* U */
+            { 2, 2, 0, 0, 16, 1, 15, 1 },        /* V */
+            { 3, 2, 0, 0, 16, 1, 15, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA420P16LE] = {
+        .name = "yuva420p16le",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },        /* Y */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },        /* U */
+            { 2, 2, 0, 0, 16, 1, 15, 1 },        /* V */
+            { 3, 2, 0, 0, 16, 1, 15, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA422P16BE] = {
+        .name = "yuva422p16be",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },        /* Y */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },        /* U */
+            { 2, 2, 0, 0, 16, 1, 15, 1 },        /* V */
+            { 3, 2, 0, 0, 16, 1, 15, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA422P16LE] = {
+        .name = "yuva422p16le",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },        /* Y */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },        /* U */
+            { 2, 2, 0, 0, 16, 1, 15, 1 },        /* V */
+            { 3, 2, 0, 0, 16, 1, 15, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA444P16BE] = {
+        .name = "yuva444p16be",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },        /* Y */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },        /* U */
+            { 2, 2, 0, 0, 16, 1, 15, 1 },        /* V */
+            { 3, 2, 0, 0, 16, 1, 15, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA444P16LE] = {
+        .name = "yuva444p16le",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },        /* Y */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },        /* U */
+            { 2, 2, 0, 0, 16, 1, 15, 1 },        /* V */
+            { 3, 2, 0, 0, 16, 1, 15, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_RGB48BE] = {
+        .name = "rgb48be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 6, 0, 0, 16, 5, 15, 1 },       /* R */
+            { 0, 6, 2, 0, 16, 5, 15, 3 },       /* G */
+            { 0, 6, 4, 0, 16, 5, 15, 5 },       /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BE,
+    },
+    [AV_PIX_FMT_RGB48LE] = {
+        .name = "rgb48le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 6, 0, 0, 16, 5, 15, 1 },       /* R */
+            { 0, 6, 2, 0, 16, 5, 15, 3 },       /* G */
+            { 0, 6, 4, 0, 16, 5, 15, 5 },       /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_RGBA64BE] = {
+        .name = "rgba64be",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 8, 0, 0, 16, 7, 15, 1 },       /* R */
+            { 0, 8, 2, 0, 16, 7, 15, 3 },       /* G */
+            { 0, 8, 4, 0, 16, 7, 15, 5 },       /* B */
+            { 0, 8, 6, 0, 16, 7, 15, 7 },       /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_RGBA64LE] = {
+        .name = "rgba64le",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 8, 0, 0, 16, 7, 15, 1 },       /* R */
+            { 0, 8, 2, 0, 16, 7, 15, 3 },       /* G */
+            { 0, 8, 4, 0, 16, 7, 15, 5 },       /* B */
+            { 0, 8, 6, 0, 16, 7, 15, 7 },       /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_RGB565BE] = {
+        .name = "rgb565be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, -1, 3, 5, 1, 4, 0 },        /* R */
+            { 0, 2,  0, 5, 6, 1, 5, 1 },        /* G */
+            { 0, 2,  0, 0, 5, 1, 4, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_RGB565LE] = {
+        .name = "rgb565le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 1, 3, 5, 1, 4, 2 },        /* R */
+            { 0, 2, 0, 5, 6, 1, 5, 1 },        /* G */
+            { 0, 2, 0, 0, 5, 1, 4, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_RGB555BE] = {
+        .name = "rgb555be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, -1, 2, 5, 1, 4, 0 },        /* R */
+            { 0, 2,  0, 5, 5, 1, 4, 1 },        /* G */
+            { 0, 2,  0, 0, 5, 1, 4, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_RGB555LE] = {
+        .name = "rgb555le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 1, 2, 5, 1, 4, 2 },        /* R */
+            { 0, 2, 0, 5, 5, 1, 4, 1 },        /* G */
+            { 0, 2, 0, 0, 5, 1, 4, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_RGB444BE] = {
+        .name = "rgb444be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, -1, 0, 4, 1, 3, 0 },        /* R */
+            { 0, 2,  0, 4, 4, 1, 3, 1 },        /* G */
+            { 0, 2,  0, 0, 4, 1, 3, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_RGB444LE] = {
+        .name = "rgb444le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 1, 0, 4, 1, 3, 2 },        /* R */
+            { 0, 2, 0, 4, 4, 1, 3, 1 },        /* G */
+            { 0, 2, 0, 0, 4, 1, 3, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_BGR48BE] = {
+        .name = "bgr48be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 6, 4, 0, 16, 5, 15, 5 },       /* R */
+            { 0, 6, 2, 0, 16, 5, 15, 3 },       /* G */
+            { 0, 6, 0, 0, 16, 5, 15, 1 },       /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_BGR48LE] = {
+        .name = "bgr48le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 6, 4, 0, 16, 5, 15, 5 },       /* R */
+            { 0, 6, 2, 0, 16, 5, 15, 3 },       /* G */
+            { 0, 6, 0, 0, 16, 5, 15, 1 },       /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_BGRA64BE] = {
+        .name = "bgra64be",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 8, 4, 0, 16, 7, 15, 5 },       /* R */
+            { 0, 8, 2, 0, 16, 7, 15, 3 },       /* G */
+            { 0, 8, 0, 0, 16, 7, 15, 1 },       /* B */
+            { 0, 8, 6, 0, 16, 7, 15, 7 },       /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_BGRA64LE] = {
+        .name = "bgra64le",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 8, 4, 0, 16, 7, 15, 5 },       /* R */
+            { 0, 8, 2, 0, 16, 7, 15, 3 },       /* G */
+            { 0, 8, 0, 0, 16, 7, 15, 1 },       /* B */
+            { 0, 8, 6, 0, 16, 7, 15, 7 },       /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_BGR565BE] = {
+        .name = "bgr565be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2,  0, 0, 5, 1, 4, 1 },        /* R */
+            { 0, 2,  0, 5, 6, 1, 5, 1 },        /* G */
+            { 0, 2, -1, 3, 5, 1, 4, 0 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_BGR565LE] = {
+        .name = "bgr565le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 5, 1, 4, 1 },        /* R */
+            { 0, 2, 0, 5, 6, 1, 5, 1 },        /* G */
+            { 0, 2, 1, 3, 5, 1, 4, 2 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_BGR555BE] = {
+        .name = "bgr555be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2,  0, 0, 5, 1, 4, 1 },       /* R */
+            { 0, 2,  0, 5, 5, 1, 4, 1 },       /* G */
+            { 0, 2, -1, 2, 5, 1, 4, 0 },       /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB,
+     },
+    [AV_PIX_FMT_BGR555LE] = {
+        .name = "bgr555le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 5, 1, 4, 1 },        /* R */
+            { 0, 2, 0, 5, 5, 1, 4, 1 },        /* G */
+            { 0, 2, 1, 2, 5, 1, 4, 2 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_BGR444BE] = {
+        .name = "bgr444be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2,  0, 0, 4, 1, 3, 1 },       /* R */
+            { 0, 2,  0, 4, 4, 1, 3, 1 },       /* G */
+            { 0, 2, -1, 0, 4, 1, 3, 0 },       /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB,
+     },
+    [AV_PIX_FMT_BGR444LE] = {
+        .name = "bgr444le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 4, 1, 3, 1 },        /* R */
+            { 0, 2, 0, 4, 4, 1, 3, 1 },        /* G */
+            { 0, 2, 1, 0, 4, 1, 3, 2 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+#if FF_API_VAAPI
+    [AV_PIX_FMT_VAAPI_MOCO] = {
+        .name = "vaapi_moco",
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_VAAPI_IDCT] = {
+        .name = "vaapi_idct",
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_VAAPI_VLD] = {
+        .name = "vaapi_vld",
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+#else
+    [AV_PIX_FMT_VAAPI] = {
+        .name = "vaapi",
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+#endif
+    [AV_PIX_FMT_YUV420P9LE] = {
+        .name = "yuv420p9le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* Y */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* U */
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV420P9BE] = {
+        .name = "yuv420p9be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* Y */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* U */
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV420P10LE] = {
+        .name = "yuv420p10le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV420P10BE] = {
+        .name = "yuv420p10be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV420P12LE] = {
+        .name = "yuv420p12le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* Y */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* U */
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV420P12BE] = {
+        .name = "yuv420p12be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* Y */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* U */
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV420P14LE] = {
+        .name = "yuv420p14le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 14, 1, 13, 1 },        /* Y */
+            { 1, 2, 0, 0, 14, 1, 13, 1 },        /* U */
+            { 2, 2, 0, 0, 14, 1, 13, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV420P14BE] = {
+        .name = "yuv420p14be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 14, 1, 13, 1 },        /* Y */
+            { 1, 2, 0, 0, 14, 1, 13, 1 },        /* U */
+            { 2, 2, 0, 0, 14, 1, 13, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV420P16LE] = {
+        .name = "yuv420p16le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },        /* Y */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },        /* U */
+            { 2, 2, 0, 0, 16, 1, 15, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV420P16BE] = {
+        .name = "yuv420p16be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },        /* Y */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },        /* U */
+            { 2, 2, 0, 0, 16, 1, 15, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV422P9LE] = {
+        .name = "yuv422p9le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* Y */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* U */
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV422P9BE] = {
+        .name = "yuv422p9be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* Y */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* U */
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV422P10LE] = {
+        .name = "yuv422p10le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV422P10BE] = {
+        .name = "yuv422p10be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV422P12LE] = {
+        .name = "yuv422p12le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* Y */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* U */
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV422P12BE] = {
+        .name = "yuv422p12be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* Y */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* U */
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV422P14LE] = {
+        .name = "yuv422p14le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 14, 1, 13, 1 },        /* Y */
+            { 1, 2, 0, 0, 14, 1, 13, 1 },        /* U */
+            { 2, 2, 0, 0, 14, 1, 13, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV422P14BE] = {
+        .name = "yuv422p14be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 14, 1, 13, 1 },        /* Y */
+            { 1, 2, 0, 0, 14, 1, 13, 1 },        /* U */
+            { 2, 2, 0, 0, 14, 1, 13, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV422P16LE] = {
+        .name = "yuv422p16le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },        /* Y */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },        /* U */
+            { 2, 2, 0, 0, 16, 1, 15, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV422P16BE] = {
+        .name = "yuv422p16be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },        /* Y */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },        /* U */
+            { 2, 2, 0, 0, 16, 1, 15, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV444P16LE] = {
+        .name = "yuv444p16le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },        /* Y */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },        /* U */
+            { 2, 2, 0, 0, 16, 1, 15, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV444P16BE] = {
+        .name = "yuv444p16be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },        /* Y */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },        /* U */
+            { 2, 2, 0, 0, 16, 1, 15, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV444P10LE] = {
+        .name = "yuv444p10le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV444P10BE] = {
+        .name = "yuv444p10be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* U */
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV444P9LE] = {
+        .name = "yuv444p9le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* Y */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* U */
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV444P9BE] = {
+        .name = "yuv444p9be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* Y */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* U */
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV444P12LE] = {
+        .name = "yuv444p12le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* Y */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* U */
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV444P12BE] = {
+        .name = "yuv444p12be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* Y */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* U */
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV444P14LE] = {
+        .name = "yuv444p14le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 14, 1, 13, 1 },        /* Y */
+            { 1, 2, 0, 0, 14, 1, 13, 1 },        /* U */
+            { 2, 2, 0, 0, 14, 1, 13, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_YUV444P14BE] = {
+        .name = "yuv444p14be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 14, 1, 13, 1 },        /* Y */
+            { 1, 2, 0, 0, 14, 1, 13, 1 },        /* U */
+            { 2, 2, 0, 0, 14, 1, 13, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_D3D11VA_VLD] = {
+        .name = "d3d11va_vld",
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_DXVA2_VLD] = {
+        .name = "dxva2_vld",
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_YA8] = {
+        .name = "ya8",
+        .nb_components = 2,
+        .comp = {
+            { 0, 2, 0, 0, 8, 1, 7, 1 },        /* Y */
+            { 0, 2, 1, 0, 8, 1, 7, 2 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_ALPHA,
+        .alias = "gray8a",
+    },
+    [AV_PIX_FMT_YA16LE] = {
+        .name = "ya16le",
+        .nb_components = 2,
+        .comp = {
+            { 0, 4, 0, 0, 16, 3, 15, 1 },        /* Y */
+            { 0, 4, 2, 0, 16, 3, 15, 3 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YA16BE] = {
+        .name = "ya16be",
+        .nb_components = 2,
+        .comp = {
+            { 0, 4, 0, 0, 16, 3, 15, 1 },        /* Y */
+            { 0, 4, 2, 0, 16, 3, 15, 3 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_VIDEOTOOLBOX] = {
+        .name = "videotoolbox_vld",
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_GBRP] = {
+        .name = "gbrp",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* R */
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* G */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GBRP9LE] = {
+        .name = "gbrp9le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* R */
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* G */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GBRP9BE] = {
+        .name = "gbrp9be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 9, 1, 8, 1 },        /* R */
+            { 0, 2, 0, 0, 9, 1, 8, 1 },        /* G */
+            { 1, 2, 0, 0, 9, 1, 8, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GBRP10LE] = {
+        .name = "gbrp10le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* R */
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* G */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GBRP10BE] = {
+        .name = "gbrp10be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 10, 1, 9, 1 },        /* R */
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* G */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GBRP12LE] = {
+        .name = "gbrp12le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* R */
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* G */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GBRP12BE] = {
+        .name = "gbrp12be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* R */
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* G */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GBRP14LE] = {
+        .name = "gbrp14le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 14, 1, 13, 1 },        /* R */
+            { 0, 2, 0, 0, 14, 1, 13, 1 },        /* G */
+            { 1, 2, 0, 0, 14, 1, 13, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GBRP14BE] = {
+        .name = "gbrp14be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 14, 1, 13, 1 },        /* R */
+            { 0, 2, 0, 0, 14, 1, 13, 1 },        /* G */
+            { 1, 2, 0, 0, 14, 1, 13, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GBRP16LE] = {
+        .name = "gbrp16le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 16, 1, 15, 1 },       /* R */
+            { 0, 2, 0, 0, 16, 1, 15, 1 },       /* G */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },       /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GBRP16BE] = {
+        .name = "gbrp16be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 16, 1, 15, 1 },       /* R */
+            { 0, 2, 0, 0, 16, 1, 15, 1 },       /* G */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },       /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GBRAP] = {
+        .name = "gbrap",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 1, 0, 0, 8, 0, 7, 1 },        /* R */
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* G */
+            { 1, 1, 0, 0, 8, 0, 7, 1 },        /* B */
+            { 3, 1, 0, 0, 8, 0, 7, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB |
+                 AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_GBRAP16LE] = {
+        .name = "gbrap16le",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 16, 1, 15, 1 },       /* R */
+            { 0, 2, 0, 0, 16, 1, 15, 1 },       /* G */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },       /* B */
+            { 3, 2, 0, 0, 16, 1, 15, 1 },       /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB |
+                 AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_GBRAP16BE] = {
+        .name = "gbrap16be",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 16, 1, 15, 1 },       /* R */
+            { 0, 2, 0, 0, 16, 1, 15, 1 },       /* G */
+            { 1, 2, 0, 0, 16, 1, 15, 1 },       /* B */
+            { 3, 2, 0, 0, 16, 1, 15, 1 },       /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR |
+                 AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_VDPAU] = {
+        .name = "vdpau",
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_XYZ12LE] = {
+        .name = "xyz12le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 6, 0, 4, 12, 5, 11, 1 },       /* X */
+            { 0, 6, 2, 4, 12, 5, 11, 3 },       /* Y */
+            { 0, 6, 4, 4, 12, 5, 11, 5 },       /* Z */
+      },
+      /*.flags = -- not used*/
+    },
+    [AV_PIX_FMT_XYZ12BE] = {
+        .name = "xyz12be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 6, 0, 4, 12, 5, 11, 1 },       /* X */
+            { 0, 6, 2, 4, 12, 5, 11, 3 },       /* Y */
+            { 0, 6, 4, 4, 12, 5, 11, 5 },       /* Z */
+       },
+        .flags = AV_PIX_FMT_FLAG_BE,
+    },
+
+#define BAYER8_DESC_COMMON \
+        .nb_components= 3, \
+        .log2_chroma_w= 0, \
+        .log2_chroma_h= 0, \
+        .comp = {          \
+            {0,1,0,0,2,0,1,1},\
+            {0,1,0,0,4,0,3,1},\
+            {0,1,0,0,2,0,1,1},\
+        },                 \
+
+#define BAYER16_DESC_COMMON \
+        .nb_components= 3, \
+        .log2_chroma_w= 0, \
+        .log2_chroma_h= 0, \
+        .comp = {          \
+            {0,2,0,0,4,1,3,1},\
+            {0,2,0,0,8,1,7,1},\
+            {0,2,0,0,4,1,3,1},\
+        },                 \
+
+    [AV_PIX_FMT_BAYER_BGGR8] = {
+        .name = "bayer_bggr8",
+        BAYER8_DESC_COMMON
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BAYER,
+    },
+    [AV_PIX_FMT_BAYER_BGGR16LE] = {
+        .name = "bayer_bggr16le",
+        BAYER16_DESC_COMMON
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BAYER,
+    },
+    [AV_PIX_FMT_BAYER_BGGR16BE] = {
+        .name = "bayer_bggr16be",
+        BAYER16_DESC_COMMON
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BAYER,
+    },
+    [AV_PIX_FMT_BAYER_RGGB8] = {
+        .name = "bayer_rggb8",
+        BAYER8_DESC_COMMON
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BAYER,
+    },
+    [AV_PIX_FMT_BAYER_RGGB16LE] = {
+        .name = "bayer_rggb16le",
+        BAYER16_DESC_COMMON
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BAYER,
+    },
+    [AV_PIX_FMT_BAYER_RGGB16BE] = {
+        .name = "bayer_rggb16be",
+        BAYER16_DESC_COMMON
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BAYER,
+    },
+    [AV_PIX_FMT_BAYER_GBRG8] = {
+        .name = "bayer_gbrg8",
+        BAYER8_DESC_COMMON
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BAYER,
+    },
+    [AV_PIX_FMT_BAYER_GBRG16LE] = {
+        .name = "bayer_gbrg16le",
+        BAYER16_DESC_COMMON
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BAYER,
+    },
+    [AV_PIX_FMT_BAYER_GBRG16BE] = {
+        .name = "bayer_gbrg16be",
+        BAYER16_DESC_COMMON
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BAYER,
+    },
+    [AV_PIX_FMT_BAYER_GRBG8] = {
+        .name = "bayer_grbg8",
+        BAYER8_DESC_COMMON
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BAYER,
+    },
+    [AV_PIX_FMT_BAYER_GRBG16LE] = {
+        .name = "bayer_grbg16le",
+        BAYER16_DESC_COMMON
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BAYER,
+    },
+    [AV_PIX_FMT_BAYER_GRBG16BE] = {
+        .name = "bayer_grbg16be",
+        BAYER16_DESC_COMMON
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BAYER,
+    },
+    [AV_PIX_FMT_NV16] = {
+        .name = "nv16",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 2, 0, 0, 8, 1, 7, 1 },        /* U */
+            { 1, 2, 1, 0, 8, 1, 7, 2 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_NV20LE] = {
+        .name = "nv20le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 4, 0, 0, 10, 3, 9, 1 },        /* U */
+            { 1, 4, 2, 0, 10, 3, 9, 3 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_NV20BE] = {
+        .name = "nv20be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 10, 1, 9, 1 },        /* Y */
+            { 1, 4, 0, 0, 10, 3, 9, 1 },        /* U */
+            { 1, 4, 2, 0, 10, 3, 9, 3 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_BE,
+    },
+    [AV_PIX_FMT_QSV] = {
+        .name = "qsv",
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_MEDIACODEC] = {
+        .name = "mediacodec",
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_MMAL] = {
+        .name = "mmal",
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_CUDA] = {
+        .name = "cuda",
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_AYUV64LE] = {
+        .name = "ayuv64le",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 8, 2, 0, 16, 7, 15, 3 },        /* Y */
+            { 0, 8, 4, 0, 16, 7, 15, 5 },        /* U */
+            { 0, 8, 6, 0, 16, 7, 15, 7 },        /* V */
+            { 0, 8, 0, 0, 16, 7, 15, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_AYUV64BE] = {
+        .name = "ayuv64be",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 8, 2, 0, 16, 7, 15, 3 },        /* Y */
+            { 0, 8, 4, 0, 16, 7, 15, 5 },        /* U */
+            { 0, 8, 6, 0, 16, 7, 15, 7 },        /* V */
+            { 0, 8, 0, 0, 16, 7, 15, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_P010LE] = {
+        .name = "p010le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 6, 10, 1, 9, 1 },        /* Y */
+            { 1, 4, 0, 6, 10, 3, 9, 1 },        /* U */
+            { 1, 4, 2, 6, 10, 3, 9, 3 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_P010BE] = {
+        .name = "p010be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 6, 10, 1, 9, 1 },        /* Y */
+            { 1, 4, 0, 6, 10, 3, 9, 1 },        /* U */
+            { 1, 4, 2, 6, 10, 3, 9, 3 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_BE,
+    },
+    [AV_PIX_FMT_P016LE] = {
+        .name = "p016le",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },       /* Y */
+            { 1, 4, 0, 0, 16, 3, 15, 1 },       /* U */
+            { 1, 4, 2, 0, 16, 3, 15, 3 },       /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_P016BE] = {
+        .name = "p016be",
+        .nb_components = 3,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 1,
+        .comp = {
+            { 0, 2, 0, 0, 16, 1, 15, 1 },       /* Y */
+            { 1, 4, 0, 0, 16, 3, 15, 1 },       /* U */
+            { 1, 4, 2, 0, 16, 3, 15, 3 },       /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_BE,
+    },
+    [AV_PIX_FMT_GBRAP12LE] = {
+        .name = "gbrap12le",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 12, 1, 11, 1 },       /* R */
+            { 0, 2, 0, 0, 12, 1, 11, 1 },       /* G */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },       /* B */
+            { 3, 2, 0, 0, 12, 1, 11, 1 },       /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB |
+                 AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_GBRAP12BE] = {
+        .name = "gbrap12be",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 12, 1, 11, 1 },       /* R */
+            { 0, 2, 0, 0, 12, 1, 11, 1 },       /* G */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },       /* B */
+            { 3, 2, 0, 0, 12, 1, 11, 1 },       /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR |
+                 AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_GBRAP10LE] = {
+        .name = "gbrap10le",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 10, 1, 9, 1 },       /* R */
+            { 0, 2, 0, 0, 10, 1, 9, 1 },       /* G */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },       /* B */
+            { 3, 2, 0, 0, 10, 1, 9, 1 },       /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB |
+                 AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_GBRAP10BE] = {
+        .name = "gbrap10be",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 2, 0, 0, 10, 1, 9, 1 },       /* R */
+            { 0, 2, 0, 0, 10, 1, 9, 1 },       /* G */
+            { 1, 2, 0, 0, 10, 1, 9, 1 },       /* B */
+            { 3, 2, 0, 0, 10, 1, 9, 1 },       /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR |
+                 AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_D3D11] = {
+        .name = "d3d11",
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_GBRPF32BE] = {
+        .name = "gbrpf32be",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 4, 0, 0, 32, 3, 31, 1 },        /* R */
+            { 0, 4, 0, 0, 32, 3, 31, 1 },        /* G */
+            { 1, 4, 0, 0, 32, 3, 31, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR |
+                 AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_FLOAT,
+    },
+    [AV_PIX_FMT_GBRPF32LE] = {
+        .name = "gbrpf32le",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 4, 0, 0, 32, 3, 31, 1 },        /* R */
+            { 0, 4, 0, 0, 32, 3, 31, 1 },        /* G */
+            { 1, 4, 0, 0, 32, 3, 31, 1 },        /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_FLOAT | AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_GBRAPF32BE] = {
+        .name = "gbrapf32be",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 4, 0, 0, 32, 3, 31, 1 },        /* R */
+            { 0, 4, 0, 0, 32, 3, 31, 1 },        /* G */
+            { 1, 4, 0, 0, 32, 3, 31, 1 },        /* B */
+            { 3, 4, 0, 0, 32, 3, 31, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR |
+                 AV_PIX_FMT_FLAG_ALPHA | AV_PIX_FMT_FLAG_RGB |
+                 AV_PIX_FMT_FLAG_FLOAT,
+    },
+    [AV_PIX_FMT_GBRAPF32LE] = {
+        .name = "gbrapf32le",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 2, 4, 0, 0, 32, 3, 31, 1 },        /* R */
+            { 0, 4, 0, 0, 32, 3, 31, 1 },        /* G */
+            { 1, 4, 0, 0, 32, 3, 31, 1 },        /* B */
+            { 3, 4, 0, 0, 32, 3, 31, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA |
+                 AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_FLOAT,
+    },
+    [AV_PIX_FMT_DRM_PRIME] = {
+        .name = "drm_prime",
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_OPENCL] = {
+        .name  = "opencl",
+        .flags = AV_PIX_FMT_FLAG_HWACCEL,
+    },
+    [AV_PIX_FMT_GRAYF32BE] = {
+        .name = "grayf32be",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 4, 0, 0, 32, 3, 31, 1 },       /* Y */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_FLOAT,
+        .alias = "yf32be",
+    },
+    [AV_PIX_FMT_GRAYF32LE] = {
+        .name = "grayf32le",
+        .nb_components = 1,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 4, 0, 0, 32, 3, 31, 1 },       /* Y */
+        },
+        .flags = AV_PIX_FMT_FLAG_FLOAT,
+        .alias = "yf32le",
+    },
+    [AV_PIX_FMT_YUVA422P12BE] = {
+        .name = "yuva422p12be",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* Y */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* U */
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* V */
+            { 3, 2, 0, 0, 12, 1, 11, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA422P12LE] = {
+        .name = "yuva422p12le",
+        .nb_components = 4,
+        .log2_chroma_w = 1,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* Y */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* U */
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* V */
+            { 3, 2, 0, 0, 12, 1, 11, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA444P12BE] = {
+        .name = "yuva444p12be",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* Y */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* U */
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* V */
+            { 3, 2, 0, 0, 12, 1, 11, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_YUVA444P12LE] = {
+        .name = "yuva444p12le",
+        .nb_components = 4,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 2, 0, 0, 12, 1, 11, 1 },        /* Y */
+            { 1, 2, 0, 0, 12, 1, 11, 1 },        /* U */
+            { 2, 2, 0, 0, 12, 1, 11, 1 },        /* V */
+            { 3, 2, 0, 0, 12, 1, 11, 1 },        /* A */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA,
+    },
+    [AV_PIX_FMT_NV24] = {
+        .name = "nv24",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 2, 0, 0, 8, 1, 7, 1 },        /* U */
+            { 1, 2, 1, 0, 8, 1, 7, 2 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+    [AV_PIX_FMT_NV42] = {
+        .name = "nv42",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 1, 0, 0, 8, 0, 7, 1 },        /* Y */
+            { 1, 2, 1, 0, 8, 1, 7, 2 },        /* U */
+            { 1, 2, 0, 0, 8, 1, 7, 1 },        /* V */
+        },
+        .flags = AV_PIX_FMT_FLAG_PLANAR,
+    },
+};
+#if FF_API_PLUS1_MINUS1
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+static const char * const color_range_names[] = {
+    [AVCOL_RANGE_UNSPECIFIED] = "unknown",
+    [AVCOL_RANGE_MPEG] = "tv",
+    [AVCOL_RANGE_JPEG] = "pc",
+};
+
+static const char * const color_primaries_names[AVCOL_PRI_NB] = {
+    [AVCOL_PRI_RESERVED0] = "reserved",
+    [AVCOL_PRI_BT709] = "bt709",
+    [AVCOL_PRI_UNSPECIFIED] = "unknown",
+    [AVCOL_PRI_RESERVED] = "reserved",
+    [AVCOL_PRI_BT470M] = "bt470m",
+    [AVCOL_PRI_BT470BG] = "bt470bg",
+    [AVCOL_PRI_SMPTE170M] = "smpte170m",
+    [AVCOL_PRI_SMPTE240M] = "smpte240m",
+    [AVCOL_PRI_FILM] = "film",
+    [AVCOL_PRI_BT2020] = "bt2020",
+    [AVCOL_PRI_SMPTE428] = "smpte428",
+    [AVCOL_PRI_SMPTE431] = "smpte431",
+    [AVCOL_PRI_SMPTE432] = "smpte432",
+    [AVCOL_PRI_JEDEC_P22] = "jedec-p22",
+};
+
+static const char * const color_transfer_names[] = {
+    [AVCOL_TRC_RESERVED0] = "reserved",
+    [AVCOL_TRC_BT709] = "bt709",
+    [AVCOL_TRC_UNSPECIFIED] = "unknown",
+    [AVCOL_TRC_RESERVED] = "reserved",
+    [AVCOL_TRC_GAMMA22] = "bt470m",
+    [AVCOL_TRC_GAMMA28] = "bt470bg",
+    [AVCOL_TRC_SMPTE170M] = "smpte170m",
+    [AVCOL_TRC_SMPTE240M] = "smpte240m",
+    [AVCOL_TRC_LINEAR] = "linear",
+    [AVCOL_TRC_LOG] = "log100",
+    [AVCOL_TRC_LOG_SQRT] = "log316",
+    [AVCOL_TRC_IEC61966_2_4] = "iec61966-2-4",
+    [AVCOL_TRC_BT1361_ECG] = "bt1361e",
+    [AVCOL_TRC_IEC61966_2_1] = "iec61966-2-1",
+    [AVCOL_TRC_BT2020_10] = "bt2020-10",
+    [AVCOL_TRC_BT2020_12] = "bt2020-12",
+    [AVCOL_TRC_SMPTE2084] = "smpte2084",
+    [AVCOL_TRC_SMPTE428] = "smpte428",
+    [AVCOL_TRC_ARIB_STD_B67] = "arib-std-b67",
+};
+
+static const char * const color_space_names[] = {
+    [AVCOL_SPC_RGB] = "gbr",
+    [AVCOL_SPC_BT709] = "bt709",
+    [AVCOL_SPC_UNSPECIFIED] = "unknown",
+    [AVCOL_SPC_RESERVED] = "reserved",
+    [AVCOL_SPC_FCC] = "fcc",
+    [AVCOL_SPC_BT470BG] = "bt470bg",
+    [AVCOL_SPC_SMPTE170M] = "smpte170m",
+    [AVCOL_SPC_SMPTE240M] = "smpte240m",
+    [AVCOL_SPC_YCGCO] = "ycgco",
+    [AVCOL_SPC_BT2020_NCL] = "bt2020nc",
+    [AVCOL_SPC_BT2020_CL] = "bt2020c",
+    [AVCOL_SPC_SMPTE2085] = "smpte2085",
+    [AVCOL_SPC_CHROMA_DERIVED_NCL] = "chroma-derived-nc",
+    [AVCOL_SPC_CHROMA_DERIVED_CL] = "chroma-derived-c",
+    [AVCOL_SPC_ICTCP] = "ictcp",
+};
+
+static const char * const chroma_location_names[] = {
+    [AVCHROMA_LOC_UNSPECIFIED] = "unspecified",
+    [AVCHROMA_LOC_LEFT] = "left",
+    [AVCHROMA_LOC_CENTER] = "center",
+    [AVCHROMA_LOC_TOPLEFT] = "topleft",
+    [AVCHROMA_LOC_TOP] = "top",
+    [AVCHROMA_LOC_BOTTOMLEFT] = "bottomleft",
+    [AVCHROMA_LOC_BOTTOM] = "bottom",
+};
+
+static enum AVPixelFormat get_pix_fmt_internal(const char *name)
+{
+    enum AVPixelFormat pix_fmt;
+
+    for (pix_fmt = 0; pix_fmt < AV_PIX_FMT_NB; pix_fmt++)
+        if (av_pix_fmt_descriptors[pix_fmt].name &&
+            (!strcmp(av_pix_fmt_descriptors[pix_fmt].name, name) ||
+             av_match_name(name, av_pix_fmt_descriptors[pix_fmt].alias)))
+            return pix_fmt;
+
+    return AV_PIX_FMT_NONE;
+}
+
+const char *av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
+{
+    return (unsigned)pix_fmt < AV_PIX_FMT_NB ?
+        av_pix_fmt_descriptors[pix_fmt].name : NULL;
+}
+
+#if HAVE_BIGENDIAN
+#   define X_NE(be, le) be
+#else
+#   define X_NE(be, le) le
+#endif
+
+enum AVPixelFormat av_get_pix_fmt(const char *name)
+{
+    enum AVPixelFormat pix_fmt;
+
+    if (!strcmp(name, "rgb32"))
+        name = X_NE("argb", "bgra");
+    else if (!strcmp(name, "bgr32"))
+        name = X_NE("abgr", "rgba");
+
+    pix_fmt = get_pix_fmt_internal(name);
+    if (pix_fmt == AV_PIX_FMT_NONE) {
+        char name2[32];
+
+        snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
+        pix_fmt = get_pix_fmt_internal(name2);
+    }
+
+#if FF_API_VAAPI
+    if (pix_fmt == AV_PIX_FMT_NONE && !strcmp(name, "vaapi"))
+        pix_fmt = AV_PIX_FMT_VAAPI;
+#endif
+    return pix_fmt;
+}
+
+int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
+{
+    int c, bits = 0;
+    int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
+
+    for (c = 0; c < pixdesc->nb_components; c++) {
+        int s = c == 1 || c == 2 ? 0 : log2_pixels;
+        bits += pixdesc->comp[c].depth << s;
+    }
+
+    return bits >> log2_pixels;
+}
+
+int av_get_padded_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
+{
+    int c, bits = 0;
+    int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
+    int steps[4] = {0};
+
+    for (c = 0; c < pixdesc->nb_components; c++) {
+        const AVComponentDescriptor *comp = &pixdesc->comp[c];
+        int s = c == 1 || c == 2 ? 0 : log2_pixels;
+        steps[comp->plane] = comp->step << s;
+    }
+    for (c = 0; c < 4; c++)
+        bits += steps[c];
+
+    if(!(pixdesc->flags & AV_PIX_FMT_FLAG_BITSTREAM))
+        bits *= 8;
+
+    return bits >> log2_pixels;
+}
+
+char *av_get_pix_fmt_string(char *buf, int buf_size,
+                            enum AVPixelFormat pix_fmt)
+{
+    /* print header */
+    if (pix_fmt < 0) {
+       snprintf (buf, buf_size, "name" " nb_components" " nb_bits");
+    } else {
+        const AVPixFmtDescriptor *pixdesc = &av_pix_fmt_descriptors[pix_fmt];
+        snprintf(buf, buf_size, "%-11s %7d %10d", pixdesc->name,
+                 pixdesc->nb_components, av_get_bits_per_pixel(pixdesc));
+    }
+
+    return buf;
+}
+
+const AVPixFmtDescriptor *av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
+{
+    if (pix_fmt < 0 || pix_fmt >= AV_PIX_FMT_NB)
+        return NULL;
+    return &av_pix_fmt_descriptors[pix_fmt];
+}
+
+const AVPixFmtDescriptor *av_pix_fmt_desc_next(const AVPixFmtDescriptor *prev)
+{
+    if (!prev)
+        return &av_pix_fmt_descriptors[0];
+    while (prev - av_pix_fmt_descriptors < FF_ARRAY_ELEMS(av_pix_fmt_descriptors) - 1) {
+        prev++;
+        if (prev->name)
+            return prev;
+    }
+    return NULL;
+}
+
+enum AVPixelFormat av_pix_fmt_desc_get_id(const AVPixFmtDescriptor *desc)
+{
+    if (desc < av_pix_fmt_descriptors ||
+        desc >= av_pix_fmt_descriptors + FF_ARRAY_ELEMS(av_pix_fmt_descriptors))
+        return AV_PIX_FMT_NONE;
+
+    return desc - av_pix_fmt_descriptors;
+}
+
+int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt,
+                                     int *h_shift, int *v_shift)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    if (!desc)
+        return AVERROR(ENOSYS);
+    *h_shift = desc->log2_chroma_w;
+    *v_shift = desc->log2_chroma_h;
+
+    return 0;
+}
+
+int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    int i, planes[4] = { 0 }, ret = 0;
+
+    if (!desc)
+        return AVERROR(EINVAL);
+
+    for (i = 0; i < desc->nb_components; i++)
+        planes[desc->comp[i].plane] = 1;
+    for (i = 0; i < FF_ARRAY_ELEMS(planes); i++)
+        ret += planes[i];
+    return ret;
+}
+
+void ff_check_pixfmt_descriptors(void){
+    int i, j;
+
+    for (i=0; i<FF_ARRAY_ELEMS(av_pix_fmt_descriptors); i++) {
+        const AVPixFmtDescriptor *d = &av_pix_fmt_descriptors[i];
+        uint8_t fill[4][8+6+3] = {{0}};
+        uint8_t *data[4] = {fill[0], fill[1], fill[2], fill[3]};
+        int linesize[4] = {0,0,0,0};
+        uint16_t tmp[2];
+
+        if (!d->name && !d->nb_components && !d->log2_chroma_w && !d->log2_chroma_h && !d->flags)
+            continue;
+//         av_log(NULL, AV_LOG_DEBUG, "Checking: %s\n", d->name);
+        av_assert0(d->log2_chroma_w <= 3);
+        av_assert0(d->log2_chroma_h <= 3);
+        av_assert0(d->nb_components <= 4);
+        av_assert0(d->name && d->name[0]);
+        av_assert2(av_get_pix_fmt(d->name) == i);
+
+        for (j=0; j<FF_ARRAY_ELEMS(d->comp); j++) {
+            const AVComponentDescriptor *c = &d->comp[j];
+            if(j>=d->nb_components) {
+                av_assert0(!c->plane && !c->step && !c->offset && !c->shift && !c->depth);
+                continue;
+            }
+            if (d->flags & AV_PIX_FMT_FLAG_BITSTREAM) {
+                av_assert0(c->step >= c->depth);
+            } else {
+                av_assert0(8*c->step >= c->depth);
+            }
+            if (d->flags & AV_PIX_FMT_FLAG_BAYER)
+                continue;
+            av_read_image_line(tmp, (void*)data, linesize, d, 0, 0, j, 2, 0);
+            av_assert0(tmp[0] == 0 && tmp[1] == 0);
+            tmp[0] = tmp[1] = (1<<c->depth) - 1;
+            av_write_image_line(tmp, data, linesize, d, 0, 0, j, 2);
+        }
+    }
+}
+
+
+enum AVPixelFormat av_pix_fmt_swap_endianness(enum AVPixelFormat pix_fmt)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    char name[16];
+    int i;
+
+    if (!desc || strlen(desc->name) < 2)
+        return AV_PIX_FMT_NONE;
+    av_strlcpy(name, desc->name, sizeof(name));
+    i = strlen(name) - 2;
+    if (strcmp(name + i, "be") && strcmp(name + i, "le"))
+        return AV_PIX_FMT_NONE;
+
+    name[i] ^= 'b' ^ 'l';
+
+    return get_pix_fmt_internal(name);
+}
+
+#define FF_COLOR_NA      -1
+#define FF_COLOR_RGB      0 /**< RGB color space */
+#define FF_COLOR_GRAY     1 /**< gray color space */
+#define FF_COLOR_YUV      2 /**< YUV color space. 16 <= Y <= 235, 16 <= U, V <= 240 */
+#define FF_COLOR_YUV_JPEG 3 /**< YUV color space. 0 <= Y <= 255, 0 <= U, V <= 255 */
+#define FF_COLOR_XYZ      4
+
+#define pixdesc_has_alpha(pixdesc) \
+    ((pixdesc)->flags & AV_PIX_FMT_FLAG_ALPHA)
+
+
+static int get_color_type(const AVPixFmtDescriptor *desc) {
+    if (desc->flags & AV_PIX_FMT_FLAG_PAL)
+        return FF_COLOR_RGB;
+
+    if(desc->nb_components == 1 || desc->nb_components == 2)
+        return FF_COLOR_GRAY;
+
+    if(desc->name && !strncmp(desc->name, "yuvj", 4))
+        return FF_COLOR_YUV_JPEG;
+
+    if(desc->name && !strncmp(desc->name, "xyz", 3))
+        return FF_COLOR_XYZ;
+
+    if(desc->flags & AV_PIX_FMT_FLAG_RGB)
+        return  FF_COLOR_RGB;
+
+    if(desc->nb_components == 0)
+        return FF_COLOR_NA;
+
+    return FF_COLOR_YUV;
+}
+
+static int get_pix_fmt_depth(int *min, int *max, enum AVPixelFormat pix_fmt)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    int i;
+
+    if (!desc || !desc->nb_components) {
+        *min = *max = 0;
+        return AVERROR(EINVAL);
+    }
+
+    *min = INT_MAX, *max = -INT_MAX;
+    for (i = 0; i < desc->nb_components; i++) {
+        *min = FFMIN(desc->comp[i].depth, *min);
+        *max = FFMAX(desc->comp[i].depth, *max);
+    }
+    return 0;
+}
+
+static int get_pix_fmt_score(enum AVPixelFormat dst_pix_fmt,
+                              enum AVPixelFormat src_pix_fmt,
+                              unsigned *lossp, unsigned consider)
+{
+    const AVPixFmtDescriptor *src_desc = av_pix_fmt_desc_get(src_pix_fmt);
+    const AVPixFmtDescriptor *dst_desc = av_pix_fmt_desc_get(dst_pix_fmt);
+    int src_color, dst_color;
+    int src_min_depth, src_max_depth, dst_min_depth, dst_max_depth;
+    int ret, loss, i, nb_components;
+    int score = INT_MAX - 1;
+
+    if (!src_desc || !dst_desc)
+        return -4;
+
+    if ((src_desc->flags & AV_PIX_FMT_FLAG_HWACCEL) ||
+        (dst_desc->flags & AV_PIX_FMT_FLAG_HWACCEL)) {
+        if (dst_pix_fmt == src_pix_fmt)
+            return -1;
+        else
+            return -2;
+    }
+
+    /* compute loss */
+    *lossp = loss = 0;
+
+    if (dst_pix_fmt == src_pix_fmt)
+        return INT_MAX;
+
+    if ((ret = get_pix_fmt_depth(&src_min_depth, &src_max_depth, src_pix_fmt)) < 0)
+        return -3;
+    if ((ret = get_pix_fmt_depth(&dst_min_depth, &dst_max_depth, dst_pix_fmt)) < 0)
+        return -3;
+
+    src_color = get_color_type(src_desc);
+    dst_color = get_color_type(dst_desc);
+    if (dst_pix_fmt == AV_PIX_FMT_PAL8)
+        nb_components = FFMIN(src_desc->nb_components, 4);
+    else
+        nb_components = FFMIN(src_desc->nb_components, dst_desc->nb_components);
+
+    for (i = 0; i < nb_components; i++) {
+        int depth_minus1 = (dst_pix_fmt == AV_PIX_FMT_PAL8) ? 7/nb_components : (dst_desc->comp[i].depth - 1);
+        if (src_desc->comp[i].depth - 1 > depth_minus1 && (consider & FF_LOSS_DEPTH)) {
+            loss |= FF_LOSS_DEPTH;
+            score -= 65536 >> depth_minus1;
+        }
+    }
+
+    if (consider & FF_LOSS_RESOLUTION) {
+        if (dst_desc->log2_chroma_w > src_desc->log2_chroma_w) {
+            loss |= FF_LOSS_RESOLUTION;
+            score -= 256 << dst_desc->log2_chroma_w;
+        }
+        if (dst_desc->log2_chroma_h > src_desc->log2_chroma_h) {
+            loss |= FF_LOSS_RESOLUTION;
+            score -= 256 << dst_desc->log2_chroma_h;
+        }
+        // don't favor 422 over 420 if downsampling is needed, because 420 has much better support on the decoder side
+        if (dst_desc->log2_chroma_w == 1 && src_desc->log2_chroma_w == 0 &&
+            dst_desc->log2_chroma_h == 1 && src_desc->log2_chroma_h == 0 ) {
+            score += 512;
+        }
+    }
+
+    if(consider & FF_LOSS_COLORSPACE)
+    switch(dst_color) {
+    case FF_COLOR_RGB:
+        if (src_color != FF_COLOR_RGB &&
+            src_color != FF_COLOR_GRAY)
+            loss |= FF_LOSS_COLORSPACE;
+        break;
+    case FF_COLOR_GRAY:
+        if (src_color != FF_COLOR_GRAY)
+            loss |= FF_LOSS_COLORSPACE;
+        break;
+    case FF_COLOR_YUV:
+        if (src_color != FF_COLOR_YUV)
+            loss |= FF_LOSS_COLORSPACE;
+        break;
+    case FF_COLOR_YUV_JPEG:
+        if (src_color != FF_COLOR_YUV_JPEG &&
+            src_color != FF_COLOR_YUV &&
+            src_color != FF_COLOR_GRAY)
+            loss |= FF_LOSS_COLORSPACE;
+        break;
+    default:
+        /* fail safe test */
+        if (src_color != dst_color)
+            loss |= FF_LOSS_COLORSPACE;
+        break;
+    }
+    if(loss & FF_LOSS_COLORSPACE)
+        score -= (nb_components * 65536) >> FFMIN(dst_desc->comp[0].depth - 1, src_desc->comp[0].depth - 1);
+
+    if (dst_color == FF_COLOR_GRAY &&
+        src_color != FF_COLOR_GRAY && (consider & FF_LOSS_CHROMA)) {
+        loss |= FF_LOSS_CHROMA;
+        score -= 2 * 65536;
+    }
+    if (!pixdesc_has_alpha(dst_desc) && (pixdesc_has_alpha(src_desc) && (consider & FF_LOSS_ALPHA))) {
+        loss |= FF_LOSS_ALPHA;
+        score -= 65536;
+    }
+    if (dst_pix_fmt == AV_PIX_FMT_PAL8 && (consider & FF_LOSS_COLORQUANT) &&
+        (src_pix_fmt != AV_PIX_FMT_PAL8 && (src_color != FF_COLOR_GRAY || (pixdesc_has_alpha(src_desc) && (consider & FF_LOSS_ALPHA))))) {
+        loss |= FF_LOSS_COLORQUANT;
+        score -= 65536;
+    }
+
+    *lossp = loss;
+    return score;
+}
+
+int av_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt,
+                            enum AVPixelFormat src_pix_fmt,
+                            int has_alpha)
+{
+    int loss;
+    int ret = get_pix_fmt_score(dst_pix_fmt, src_pix_fmt, &loss, has_alpha ? ~0 : ~FF_LOSS_ALPHA);
+    if (ret < 0)
+        return ret;
+    return loss;
+}
+
+enum AVPixelFormat av_find_best_pix_fmt_of_2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
+                                             enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)
+{
+    enum AVPixelFormat dst_pix_fmt;
+    int loss1, loss2, loss_mask;
+    const AVPixFmtDescriptor *desc1 = av_pix_fmt_desc_get(dst_pix_fmt1);
+    const AVPixFmtDescriptor *desc2 = av_pix_fmt_desc_get(dst_pix_fmt2);
+    int score1, score2;
+
+    if (!desc1) {
+        dst_pix_fmt = dst_pix_fmt2;
+    } else if (!desc2) {
+        dst_pix_fmt = dst_pix_fmt1;
+    } else {
+        loss_mask= loss_ptr?~*loss_ptr:~0; /* use loss mask if provided */
+        if(!has_alpha)
+            loss_mask &= ~FF_LOSS_ALPHA;
+
+        score1 = get_pix_fmt_score(dst_pix_fmt1, src_pix_fmt, &loss1, loss_mask);
+        score2 = get_pix_fmt_score(dst_pix_fmt2, src_pix_fmt, &loss2, loss_mask);
+
+        if (score1 == score2) {
+            if(av_get_padded_bits_per_pixel(desc2) != av_get_padded_bits_per_pixel(desc1)) {
+                dst_pix_fmt = av_get_padded_bits_per_pixel(desc2) < av_get_padded_bits_per_pixel(desc1) ? dst_pix_fmt2 : dst_pix_fmt1;
+            } else {
+                dst_pix_fmt = desc2->nb_components < desc1->nb_components ? dst_pix_fmt2 : dst_pix_fmt1;
+            }
+        } else {
+            dst_pix_fmt = score1 < score2 ? dst_pix_fmt2 : dst_pix_fmt1;
+        }
+    }
+
+    if (loss_ptr)
+        *loss_ptr = av_get_pix_fmt_loss(dst_pix_fmt, src_pix_fmt, has_alpha);
+    return dst_pix_fmt;
+}
+
+const char *av_color_range_name(enum AVColorRange range)
+{
+    return (unsigned) range < AVCOL_RANGE_NB ?
+        color_range_names[range] : NULL;
+}
+
+int av_color_range_from_name(const char *name)
+{
+    int i;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(color_range_names); i++) {
+        size_t len = strlen(color_range_names[i]);
+        if (!strncmp(color_range_names[i], name, len))
+            return i;
+    }
+
+    return AVERROR(EINVAL);
+}
+
+const char *av_color_primaries_name(enum AVColorPrimaries primaries)
+{
+    return (unsigned) primaries < AVCOL_PRI_NB ?
+        color_primaries_names[primaries] : NULL;
+}
+
+int av_color_primaries_from_name(const char *name)
+{
+    int i;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(color_primaries_names); i++) {
+        size_t len;
+
+        if (!color_primaries_names[i])
+            continue;
+
+        len = strlen(color_primaries_names[i]);
+        if (!strncmp(color_primaries_names[i], name, len))
+            return i;
+    }
+
+    return AVERROR(EINVAL);
+}
+
+const char *av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
+{
+    return (unsigned) transfer < AVCOL_TRC_NB ?
+        color_transfer_names[transfer] : NULL;
+}
+
+int av_color_transfer_from_name(const char *name)
+{
+    int i;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(color_transfer_names); i++) {
+        size_t len;
+
+        if (!color_transfer_names[i])
+            continue;
+
+        len = strlen(color_transfer_names[i]);
+        if (!strncmp(color_transfer_names[i], name, len))
+            return i;
+    }
+
+    return AVERROR(EINVAL);
+}
+
+const char *av_color_space_name(enum AVColorSpace space)
+{
+    return (unsigned) space < AVCOL_SPC_NB ?
+        color_space_names[space] : NULL;
+}
+
+int av_color_space_from_name(const char *name)
+{
+    int i;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(color_space_names); i++) {
+        size_t len;
+
+        if (!color_space_names[i])
+            continue;
+
+        len = strlen(color_space_names[i]);
+        if (!strncmp(color_space_names[i], name, len))
+            return i;
+    }
+
+    return AVERROR(EINVAL);
+}
+
+const char *av_chroma_location_name(enum AVChromaLocation location)
+{
+    return (unsigned) location < AVCHROMA_LOC_NB ?
+        chroma_location_names[location] : NULL;
+}
+
+int av_chroma_location_from_name(const char *name)
+{
+    int i;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(chroma_location_names); i++) {
+        size_t len;
+
+        if (!chroma_location_names[i])
+            continue;
+
+        len = strlen(chroma_location_names[i]);
+        if (!strncmp(chroma_location_names[i], name, len))
+            return i;
+    }
+
+    return AVERROR(EINVAL);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixdesc.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixdesc.h
new file mode 100644
index 000000000..c055810ae
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixdesc.h
@@ -0,0 +1,440 @@
+/*
+ * pixel format descriptor
+ * Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_PIXDESC_H
+#define AVUTIL_PIXDESC_H
+
+#include <inttypes.h>
+
+#include "attributes.h"
+#include "pixfmt.h"
+#include "version.h"
+
+typedef struct AVComponentDescriptor {
+    /**
+     * Which of the 4 planes contains the component.
+     */
+    int plane;
+
+    /**
+     * Number of elements between 2 horizontally consecutive pixels.
+     * Elements are bits for bitstream formats, bytes otherwise.
+     */
+    int step;
+
+    /**
+     * Number of elements before the component of the first pixel.
+     * Elements are bits for bitstream formats, bytes otherwise.
+     */
+    int offset;
+
+    /**
+     * Number of least significant bits that must be shifted away
+     * to get the value.
+     */
+    int shift;
+
+    /**
+     * Number of bits in the component.
+     */
+    int depth;
+
+#if FF_API_PLUS1_MINUS1
+    /** deprecated, use step instead */
+    attribute_deprecated int step_minus1;
+
+    /** deprecated, use depth instead */
+    attribute_deprecated int depth_minus1;
+
+    /** deprecated, use offset instead */
+    attribute_deprecated int offset_plus1;
+#endif
+} AVComponentDescriptor;
+
+/**
+ * Descriptor that unambiguously describes how the bits of a pixel are
+ * stored in the up to 4 data planes of an image. It also stores the
+ * subsampling factors and number of components.
+ *
+ * @note This is separate of the colorspace (RGB, YCbCr, YPbPr, JPEG-style YUV
+ *       and all the YUV variants) AVPixFmtDescriptor just stores how values
+ *       are stored not what these values represent.
+ */
+typedef struct AVPixFmtDescriptor {
+    const char *name;
+    uint8_t nb_components;  ///< The number of components each pixel has, (1-4)
+
+    /**
+     * Amount to shift the luma width right to find the chroma width.
+     * For YV12 this is 1 for example.
+     * chroma_width = AV_CEIL_RSHIFT(luma_width, log2_chroma_w)
+     * The note above is needed to ensure rounding up.
+     * This value only refers to the chroma components.
+     */
+    uint8_t log2_chroma_w;
+
+    /**
+     * Amount to shift the luma height right to find the chroma height.
+     * For YV12 this is 1 for example.
+     * chroma_height= AV_CEIL_RSHIFT(luma_height, log2_chroma_h)
+     * The note above is needed to ensure rounding up.
+     * This value only refers to the chroma components.
+     */
+    uint8_t log2_chroma_h;
+
+    /**
+     * Combination of AV_PIX_FMT_FLAG_... flags.
+     */
+    uint64_t flags;
+
+    /**
+     * Parameters that describe how pixels are packed.
+     * If the format has 1 or 2 components, then luma is 0.
+     * If the format has 3 or 4 components:
+     *   if the RGB flag is set then 0 is red, 1 is green and 2 is blue;
+     *   otherwise 0 is luma, 1 is chroma-U and 2 is chroma-V.
+     *
+     * If present, the Alpha channel is always the last component.
+     */
+    AVComponentDescriptor comp[4];
+
+    /**
+     * Alternative comma-separated names.
+     */
+    const char *alias;
+} AVPixFmtDescriptor;
+
+/**
+ * Pixel format is big-endian.
+ */
+#define AV_PIX_FMT_FLAG_BE           (1 << 0)
+/**
+ * Pixel format has a palette in data[1], values are indexes in this palette.
+ */
+#define AV_PIX_FMT_FLAG_PAL          (1 << 1)
+/**
+ * All values of a component are bit-wise packed end to end.
+ */
+#define AV_PIX_FMT_FLAG_BITSTREAM    (1 << 2)
+/**
+ * Pixel format is an HW accelerated format.
+ */
+#define AV_PIX_FMT_FLAG_HWACCEL      (1 << 3)
+/**
+ * At least one pixel component is not in the first data plane.
+ */
+#define AV_PIX_FMT_FLAG_PLANAR       (1 << 4)
+/**
+ * The pixel format contains RGB-like data (as opposed to YUV/grayscale).
+ */
+#define AV_PIX_FMT_FLAG_RGB          (1 << 5)
+
+/**
+ * The pixel format is "pseudo-paletted". This means that it contains a
+ * fixed palette in the 2nd plane but the palette is fixed/constant for each
+ * PIX_FMT. This allows interpreting the data as if it was PAL8, which can
+ * in some cases be simpler. Or the data can be interpreted purely based on
+ * the pixel format without using the palette.
+ * An example of a pseudo-paletted format is AV_PIX_FMT_GRAY8
+ *
+ * @deprecated This flag is deprecated, and will be removed. When it is removed,
+ * the extra palette allocation in AVFrame.data[1] is removed as well. Only
+ * actual paletted formats (as indicated by AV_PIX_FMT_FLAG_PAL) will have a
+ * palette. Starting with FFmpeg versions which have this flag deprecated, the
+ * extra "pseudo" palette is already ignored, and API users are not required to
+ * allocate a palette for AV_PIX_FMT_FLAG_PSEUDOPAL formats (it was required
+ * before the deprecation, though).
+ */
+#define AV_PIX_FMT_FLAG_PSEUDOPAL    (1 << 6)
+
+/**
+ * The pixel format has an alpha channel. This is set on all formats that
+ * support alpha in some way, including AV_PIX_FMT_PAL8. The alpha is always
+ * straight, never pre-multiplied.
+ *
+ * If a codec or a filter does not support alpha, it should set all alpha to
+ * opaque, or use the equivalent pixel formats without alpha component, e.g.
+ * AV_PIX_FMT_RGB0 (or AV_PIX_FMT_RGB24 etc.) instead of AV_PIX_FMT_RGBA.
+ */
+#define AV_PIX_FMT_FLAG_ALPHA        (1 << 7)
+
+/**
+ * The pixel format is following a Bayer pattern
+ */
+#define AV_PIX_FMT_FLAG_BAYER        (1 << 8)
+
+/**
+ * The pixel format contains IEEE-754 floating point values. Precision (double,
+ * single, or half) should be determined by the pixel size (64, 32, or 16 bits).
+ */
+#define AV_PIX_FMT_FLAG_FLOAT        (1 << 9)
+
+/**
+ * Return the number of bits per pixel used by the pixel format
+ * described by pixdesc. Note that this is not the same as the number
+ * of bits per sample.
+ *
+ * The returned number of bits refers to the number of bits actually
+ * used for storing the pixel information, that is padding bits are
+ * not counted.
+ */
+int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc);
+
+/**
+ * Return the number of bits per pixel for the pixel format
+ * described by pixdesc, including any padding or unused bits.
+ */
+int av_get_padded_bits_per_pixel(const AVPixFmtDescriptor *pixdesc);
+
+/**
+ * @return a pixel format descriptor for provided pixel format or NULL if
+ * this pixel format is unknown.
+ */
+const AVPixFmtDescriptor *av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt);
+
+/**
+ * Iterate over all pixel format descriptors known to libavutil.
+ *
+ * @param prev previous descriptor. NULL to get the first descriptor.
+ *
+ * @return next descriptor or NULL after the last descriptor
+ */
+const AVPixFmtDescriptor *av_pix_fmt_desc_next(const AVPixFmtDescriptor *prev);
+
+/**
+ * @return an AVPixelFormat id described by desc, or AV_PIX_FMT_NONE if desc
+ * is not a valid pointer to a pixel format descriptor.
+ */
+enum AVPixelFormat av_pix_fmt_desc_get_id(const AVPixFmtDescriptor *desc);
+
+/**
+ * Utility function to access log2_chroma_w log2_chroma_h from
+ * the pixel format AVPixFmtDescriptor.
+ *
+ * @param[in]  pix_fmt the pixel format
+ * @param[out] h_shift store log2_chroma_w (horizontal/width shift)
+ * @param[out] v_shift store log2_chroma_h (vertical/height shift)
+ *
+ * @return 0 on success, AVERROR(ENOSYS) on invalid or unknown pixel format
+ */
+int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt,
+                                     int *h_shift, int *v_shift);
+
+/**
+ * @return number of planes in pix_fmt, a negative AVERROR if pix_fmt is not a
+ * valid pixel format.
+ */
+int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt);
+
+/**
+ * @return the name for provided color range or NULL if unknown.
+ */
+const char *av_color_range_name(enum AVColorRange range);
+
+/**
+ * @return the AVColorRange value for name or an AVError if not found.
+ */
+int av_color_range_from_name(const char *name);
+
+/**
+ * @return the name for provided color primaries or NULL if unknown.
+ */
+const char *av_color_primaries_name(enum AVColorPrimaries primaries);
+
+/**
+ * @return the AVColorPrimaries value for name or an AVError if not found.
+ */
+int av_color_primaries_from_name(const char *name);
+
+/**
+ * @return the name for provided color transfer or NULL if unknown.
+ */
+const char *av_color_transfer_name(enum AVColorTransferCharacteristic transfer);
+
+/**
+ * @return the AVColorTransferCharacteristic value for name or an AVError if not found.
+ */
+int av_color_transfer_from_name(const char *name);
+
+/**
+ * @return the name for provided color space or NULL if unknown.
+ */
+const char *av_color_space_name(enum AVColorSpace space);
+
+/**
+ * @return the AVColorSpace value for name or an AVError if not found.
+ */
+int av_color_space_from_name(const char *name);
+
+/**
+ * @return the name for provided chroma location or NULL if unknown.
+ */
+const char *av_chroma_location_name(enum AVChromaLocation location);
+
+/**
+ * @return the AVChromaLocation value for name or an AVError if not found.
+ */
+int av_chroma_location_from_name(const char *name);
+
+/**
+ * Return the pixel format corresponding to name.
+ *
+ * If there is no pixel format with name name, then looks for a
+ * pixel format with the name corresponding to the native endian
+ * format of name.
+ * For example in a little-endian system, first looks for "gray16",
+ * then for "gray16le".
+ *
+ * Finally if no pixel format has been found, returns AV_PIX_FMT_NONE.
+ */
+enum AVPixelFormat av_get_pix_fmt(const char *name);
+
+/**
+ * Return the short name for a pixel format, NULL in case pix_fmt is
+ * unknown.
+ *
+ * @see av_get_pix_fmt(), av_get_pix_fmt_string()
+ */
+const char *av_get_pix_fmt_name(enum AVPixelFormat pix_fmt);
+
+/**
+ * Print in buf the string corresponding to the pixel format with
+ * number pix_fmt, or a header if pix_fmt is negative.
+ *
+ * @param buf the buffer where to write the string
+ * @param buf_size the size of buf
+ * @param pix_fmt the number of the pixel format to print the
+ * corresponding info string, or a negative value to print the
+ * corresponding header.
+ */
+char *av_get_pix_fmt_string(char *buf, int buf_size,
+                            enum AVPixelFormat pix_fmt);
+
+/**
+ * Read a line from an image, and write the values of the
+ * pixel format component c to dst.
+ *
+ * @param data the array containing the pointers to the planes of the image
+ * @param linesize the array containing the linesizes of the image
+ * @param desc the pixel format descriptor for the image
+ * @param x the horizontal coordinate of the first pixel to read
+ * @param y the vertical coordinate of the first pixel to read
+ * @param w the width of the line to read, that is the number of
+ * values to write to dst
+ * @param read_pal_component if not zero and the format is a paletted
+ * format writes the values corresponding to the palette
+ * component c in data[1] to dst, rather than the palette indexes in
+ * data[0]. The behavior is undefined if the format is not paletted.
+ * @param dst_element_size size of elements in dst array (2 or 4 byte)
+ */
+void av_read_image_line2(void *dst, const uint8_t *data[4],
+                        const int linesize[4], const AVPixFmtDescriptor *desc,
+                        int x, int y, int c, int w, int read_pal_component,
+                        int dst_element_size);
+
+void av_read_image_line(uint16_t *dst, const uint8_t *data[4],
+                        const int linesize[4], const AVPixFmtDescriptor *desc,
+                        int x, int y, int c, int w, int read_pal_component);
+
+/**
+ * Write the values from src to the pixel format component c of an
+ * image line.
+ *
+ * @param src array containing the values to write
+ * @param data the array containing the pointers to the planes of the
+ * image to write into. It is supposed to be zeroed.
+ * @param linesize the array containing the linesizes of the image
+ * @param desc the pixel format descriptor for the image
+ * @param x the horizontal coordinate of the first pixel to write
+ * @param y the vertical coordinate of the first pixel to write
+ * @param w the width of the line to write, that is the number of
+ * values to write to the image line
+ * @param src_element_size size of elements in src array (2 or 4 byte)
+ */
+void av_write_image_line2(const void *src, uint8_t *data[4],
+                         const int linesize[4], const AVPixFmtDescriptor *desc,
+                         int x, int y, int c, int w, int src_element_size);
+
+void av_write_image_line(const uint16_t *src, uint8_t *data[4],
+                         const int linesize[4], const AVPixFmtDescriptor *desc,
+                         int x, int y, int c, int w);
+
+/**
+ * Utility function to swap the endianness of a pixel format.
+ *
+ * @param[in]  pix_fmt the pixel format
+ *
+ * @return pixel format with swapped endianness if it exists,
+ * otherwise AV_PIX_FMT_NONE
+ */
+enum AVPixelFormat av_pix_fmt_swap_endianness(enum AVPixelFormat pix_fmt);
+
+#define FF_LOSS_RESOLUTION  0x0001 /**< loss due to resolution change */
+#define FF_LOSS_DEPTH       0x0002 /**< loss due to color depth change */
+#define FF_LOSS_COLORSPACE  0x0004 /**< loss due to color space conversion */
+#define FF_LOSS_ALPHA       0x0008 /**< loss of alpha bits */
+#define FF_LOSS_COLORQUANT  0x0010 /**< loss due to color quantization */
+#define FF_LOSS_CHROMA      0x0020 /**< loss of chroma (e.g. RGB to gray conversion) */
+
+/**
+ * Compute what kind of losses will occur when converting from one specific
+ * pixel format to another.
+ * When converting from one pixel format to another, information loss may occur.
+ * For example, when converting from RGB24 to GRAY, the color information will
+ * be lost. Similarly, other losses occur when converting from some formats to
+ * other formats. These losses can involve loss of chroma, but also loss of
+ * resolution, loss of color depth, loss due to the color space conversion, loss
+ * of the alpha bits or loss due to color quantization.
+ * av_get_fix_fmt_loss() informs you about the various types of losses
+ * which will occur when converting from one pixel format to another.
+ *
+ * @param[in] dst_pix_fmt destination pixel format
+ * @param[in] src_pix_fmt source pixel format
+ * @param[in] has_alpha Whether the source pixel format alpha channel is used.
+ * @return Combination of flags informing you what kind of losses will occur
+ * (maximum loss for an invalid dst_pix_fmt).
+ */
+int av_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt,
+                        enum AVPixelFormat src_pix_fmt,
+                        int has_alpha);
+
+/**
+ * Compute what kind of losses will occur when converting from one specific
+ * pixel format to another.
+ * When converting from one pixel format to another, information loss may occur.
+ * For example, when converting from RGB24 to GRAY, the color information will
+ * be lost. Similarly, other losses occur when converting from some formats to
+ * other formats. These losses can involve loss of chroma, but also loss of
+ * resolution, loss of color depth, loss due to the color space conversion, loss
+ * of the alpha bits or loss due to color quantization.
+ * av_get_fix_fmt_loss() informs you about the various types of losses
+ * which will occur when converting from one pixel format to another.
+ *
+ * @param[in] dst_pix_fmt destination pixel format
+ * @param[in] src_pix_fmt source pixel format
+ * @param[in] has_alpha Whether the source pixel format alpha channel is used.
+ * @return Combination of flags informing you what kind of losses will occur
+ * (maximum loss for an invalid dst_pix_fmt).
+ */
+enum AVPixelFormat av_find_best_pix_fmt_of_2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
+                                             enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr);
+
+#endif /* AVUTIL_PIXDESC_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixelutils.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixelutils.c
new file mode 100644
index 000000000..ebee3d6f9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixelutils.c
@@ -0,0 +1,89 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "common.h"
+#include "pixelutils.h"
+#include "internal.h"
+
+#if CONFIG_PIXELUTILS
+
+#include "x86/pixelutils.h"
+
+static av_always_inline int sad_wxh(const uint8_t *src1, ptrdiff_t stride1,
+                                    const uint8_t *src2, ptrdiff_t stride2,
+                                    int w, int h)
+{
+    int x, y, sum = 0;
+
+    for (y = 0; y < h; y++) {
+        for (x = 0; x < w; x++)
+            sum += abs(src1[x] - src2[x]);
+        src1 += stride1;
+        src2 += stride2;
+    }
+    return sum;
+}
+
+#define DECLARE_BLOCK_FUNCTIONS(size)                                               \
+static int block_sad_##size##x##size##_c(const uint8_t *src1, ptrdiff_t stride1,    \
+                                         const uint8_t *src2, ptrdiff_t stride2)    \
+{                                                                                   \
+    return sad_wxh(src1, stride1, src2, stride2, size, size);                       \
+}
+
+DECLARE_BLOCK_FUNCTIONS(2)
+DECLARE_BLOCK_FUNCTIONS(4)
+DECLARE_BLOCK_FUNCTIONS(8)
+DECLARE_BLOCK_FUNCTIONS(16)
+DECLARE_BLOCK_FUNCTIONS(32)
+
+static const av_pixelutils_sad_fn sad_c[] = {
+    block_sad_2x2_c,
+    block_sad_4x4_c,
+    block_sad_8x8_c,
+    block_sad_16x16_c,
+    block_sad_32x32_c,
+};
+
+#endif /* CONFIG_PIXELUTILS */
+
+av_pixelutils_sad_fn av_pixelutils_get_sad_fn(int w_bits, int h_bits, int aligned, void *log_ctx)
+{
+#if !CONFIG_PIXELUTILS
+    av_log(log_ctx, AV_LOG_ERROR, "pixelutils support is required "
+           "but libavutil is not compiled with it\n");
+    return NULL;
+#else
+    av_pixelutils_sad_fn sad[FF_ARRAY_ELEMS(sad_c)];
+
+    memcpy(sad, sad_c, sizeof(sad));
+
+    if (w_bits < 1 || w_bits > FF_ARRAY_ELEMS(sad) ||
+        h_bits < 1 || h_bits > FF_ARRAY_ELEMS(sad))
+        return NULL;
+    if (w_bits != h_bits) // only squared sad for now
+        return NULL;
+
+#if ARCH_X86
+    ff_pixelutils_sad_init_x86(sad, aligned);
+#endif
+
+    return sad[w_bits - 1];
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixelutils.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixelutils.h
new file mode 100644
index 000000000..a8dbc157e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixelutils.h
@@ -0,0 +1,52 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_PIXELUTILS_H
+#define AVUTIL_PIXELUTILS_H
+
+#include <stddef.h>
+#include <stdint.h>
+#include "common.h"
+
+/**
+ * Sum of abs(src1[x] - src2[x])
+ */
+typedef int (*av_pixelutils_sad_fn)(const uint8_t *src1, ptrdiff_t stride1,
+                                    const uint8_t *src2, ptrdiff_t stride2);
+
+/**
+ * Get a potentially optimized pointer to a Sum-of-absolute-differences
+ * function (see the av_pixelutils_sad_fn prototype).
+ *
+ * @param w_bits  1<<w_bits is the requested width of the block size
+ * @param h_bits  1<<h_bits is the requested height of the block size
+ * @param aligned If set to 2, the returned sad function will assume src1 and
+ *                src2 addresses are aligned on the block size.
+ *                If set to 1, the returned sad function will assume src1 is
+ *                aligned on the block size.
+ *                If set to 0, the returned sad function assume no particular
+ *                alignment.
+ * @param log_ctx context used for logging, can be NULL
+ *
+ * @return a pointer to the SAD function or NULL in case of error (because of
+ *         invalid parameters)
+ */
+av_pixelutils_sad_fn av_pixelutils_get_sad_fn(int w_bits, int h_bits,
+                                              int aligned, void *log_ctx);
+
+#endif /* AVUTIL_PIXELUTILS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixfmt.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixfmt.h
new file mode 100644
index 000000000..8b54c9415
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/pixfmt.h
@@ -0,0 +1,552 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_PIXFMT_H
+#define AVUTIL_PIXFMT_H
+
+/**
+ * @file
+ * pixel format definitions
+ */
+
+#include "libavutil/avconfig.h"
+#include "version.h"
+
+#define AVPALETTE_SIZE 1024
+#define AVPALETTE_COUNT 256
+
+/**
+ * Pixel format.
+ *
+ * @note
+ * AV_PIX_FMT_RGB32 is handled in an endian-specific manner. An RGBA
+ * color is put together as:
+ *  (A << 24) | (R << 16) | (G << 8) | B
+ * This is stored as BGRA on little-endian CPU architectures and ARGB on
+ * big-endian CPUs.
+ *
+ * @note
+ * If the resolution is not a multiple of the chroma subsampling factor
+ * then the chroma plane resolution must be rounded up.
+ *
+ * @par
+ * When the pixel format is palettized RGB32 (AV_PIX_FMT_PAL8), the palettized
+ * image data is stored in AVFrame.data[0]. The palette is transported in
+ * AVFrame.data[1], is 1024 bytes long (256 4-byte entries) and is
+ * formatted the same as in AV_PIX_FMT_RGB32 described above (i.e., it is
+ * also endian-specific). Note also that the individual RGB32 palette
+ * components stored in AVFrame.data[1] should be in the range 0..255.
+ * This is important as many custom PAL8 video codecs that were designed
+ * to run on the IBM VGA graphics adapter use 6-bit palette components.
+ *
+ * @par
+ * For all the 8 bits per pixel formats, an RGB32 palette is in data[1] like
+ * for pal8. This palette is filled in automatically by the function
+ * allocating the picture.
+ */
+enum AVPixelFormat {
+    AV_PIX_FMT_NONE = -1,
+    AV_PIX_FMT_YUV420P,   ///< planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
+    AV_PIX_FMT_YUYV422,   ///< packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
+    AV_PIX_FMT_RGB24,     ///< packed RGB 8:8:8, 24bpp, RGBRGB...
+    AV_PIX_FMT_BGR24,     ///< packed RGB 8:8:8, 24bpp, BGRBGR...
+    AV_PIX_FMT_YUV422P,   ///< planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
+    AV_PIX_FMT_YUV444P,   ///< planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
+    AV_PIX_FMT_YUV410P,   ///< planar YUV 4:1:0,  9bpp, (1 Cr & Cb sample per 4x4 Y samples)
+    AV_PIX_FMT_YUV411P,   ///< planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
+    AV_PIX_FMT_GRAY8,     ///<        Y        ,  8bpp
+    AV_PIX_FMT_MONOWHITE, ///<        Y        ,  1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb
+    AV_PIX_FMT_MONOBLACK, ///<        Y        ,  1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb
+    AV_PIX_FMT_PAL8,      ///< 8 bits with AV_PIX_FMT_RGB32 palette
+    AV_PIX_FMT_YUVJ420P,  ///< planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting color_range
+    AV_PIX_FMT_YUVJ422P,  ///< planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting color_range
+    AV_PIX_FMT_YUVJ444P,  ///< planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting color_range
+    AV_PIX_FMT_UYVY422,   ///< packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
+    AV_PIX_FMT_UYYVYY411, ///< packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
+    AV_PIX_FMT_BGR8,      ///< packed RGB 3:3:2,  8bpp, (msb)2B 3G 3R(lsb)
+    AV_PIX_FMT_BGR4,      ///< packed RGB 1:2:1 bitstream,  4bpp, (msb)1B 2G 1R(lsb), a byte contains two pixels, the first pixel in the byte is the one composed by the 4 msb bits
+    AV_PIX_FMT_BGR4_BYTE, ///< packed RGB 1:2:1,  8bpp, (msb)1B 2G 1R(lsb)
+    AV_PIX_FMT_RGB8,      ///< packed RGB 3:3:2,  8bpp, (msb)2R 3G 3B(lsb)
+    AV_PIX_FMT_RGB4,      ///< packed RGB 1:2:1 bitstream,  4bpp, (msb)1R 2G 1B(lsb), a byte contains two pixels, the first pixel in the byte is the one composed by the 4 msb bits
+    AV_PIX_FMT_RGB4_BYTE, ///< packed RGB 1:2:1,  8bpp, (msb)1R 2G 1B(lsb)
+    AV_PIX_FMT_NV12,      ///< planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (first byte U and the following byte V)
+    AV_PIX_FMT_NV21,      ///< as above, but U and V bytes are swapped
+
+    AV_PIX_FMT_ARGB,      ///< packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
+    AV_PIX_FMT_RGBA,      ///< packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
+    AV_PIX_FMT_ABGR,      ///< packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
+    AV_PIX_FMT_BGRA,      ///< packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
+
+    AV_PIX_FMT_GRAY16BE,  ///<        Y        , 16bpp, big-endian
+    AV_PIX_FMT_GRAY16LE,  ///<        Y        , 16bpp, little-endian
+    AV_PIX_FMT_YUV440P,   ///< planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
+    AV_PIX_FMT_YUVJ440P,  ///< planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
+    AV_PIX_FMT_YUVA420P,  ///< planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
+    AV_PIX_FMT_RGB48BE,   ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big-endian
+    AV_PIX_FMT_RGB48LE,   ///< packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as little-endian
+
+    AV_PIX_FMT_RGB565BE,  ///< packed RGB 5:6:5, 16bpp, (msb)   5R 6G 5B(lsb), big-endian
+    AV_PIX_FMT_RGB565LE,  ///< packed RGB 5:6:5, 16bpp, (msb)   5R 6G 5B(lsb), little-endian
+    AV_PIX_FMT_RGB555BE,  ///< packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), big-endian   , X=unused/undefined
+    AV_PIX_FMT_RGB555LE,  ///< packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), little-endian, X=unused/undefined
+
+    AV_PIX_FMT_BGR565BE,  ///< packed BGR 5:6:5, 16bpp, (msb)   5B 6G 5R(lsb), big-endian
+    AV_PIX_FMT_BGR565LE,  ///< packed BGR 5:6:5, 16bpp, (msb)   5B 6G 5R(lsb), little-endian
+    AV_PIX_FMT_BGR555BE,  ///< packed BGR 5:5:5, 16bpp, (msb)1X 5B 5G 5R(lsb), big-endian   , X=unused/undefined
+    AV_PIX_FMT_BGR555LE,  ///< packed BGR 5:5:5, 16bpp, (msb)1X 5B 5G 5R(lsb), little-endian, X=unused/undefined
+
+#if FF_API_VAAPI
+    /** @name Deprecated pixel formats */
+    /**@{*/
+    AV_PIX_FMT_VAAPI_MOCO, ///< HW acceleration through VA API at motion compensation entry-point, Picture.data[3] contains a vaapi_render_state struct which contains macroblocks as well as various fields extracted from headers
+    AV_PIX_FMT_VAAPI_IDCT, ///< HW acceleration through VA API at IDCT entry-point, Picture.data[3] contains a vaapi_render_state struct which contains fields extracted from headers
+    AV_PIX_FMT_VAAPI_VLD,  ///< HW decoding through VA API, Picture.data[3] contains a VASurfaceID
+    /**@}*/
+    AV_PIX_FMT_VAAPI = AV_PIX_FMT_VAAPI_VLD,
+#else
+    /**
+     *  Hardware acceleration through VA-API, data[3] contains a
+     *  VASurfaceID.
+     */
+    AV_PIX_FMT_VAAPI,
+#endif
+
+    AV_PIX_FMT_YUV420P16LE,  ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
+    AV_PIX_FMT_YUV420P16BE,  ///< planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
+    AV_PIX_FMT_YUV422P16LE,  ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
+    AV_PIX_FMT_YUV422P16BE,  ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
+    AV_PIX_FMT_YUV444P16LE,  ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
+    AV_PIX_FMT_YUV444P16BE,  ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
+    AV_PIX_FMT_DXVA2_VLD,    ///< HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer
+
+    AV_PIX_FMT_RGB444LE,  ///< packed RGB 4:4:4, 16bpp, (msb)4X 4R 4G 4B(lsb), little-endian, X=unused/undefined
+    AV_PIX_FMT_RGB444BE,  ///< packed RGB 4:4:4, 16bpp, (msb)4X 4R 4G 4B(lsb), big-endian,    X=unused/undefined
+    AV_PIX_FMT_BGR444LE,  ///< packed BGR 4:4:4, 16bpp, (msb)4X 4B 4G 4R(lsb), little-endian, X=unused/undefined
+    AV_PIX_FMT_BGR444BE,  ///< packed BGR 4:4:4, 16bpp, (msb)4X 4B 4G 4R(lsb), big-endian,    X=unused/undefined
+    AV_PIX_FMT_YA8,       ///< 8 bits gray, 8 bits alpha
+
+    AV_PIX_FMT_Y400A = AV_PIX_FMT_YA8, ///< alias for AV_PIX_FMT_YA8
+    AV_PIX_FMT_GRAY8A= AV_PIX_FMT_YA8, ///< alias for AV_PIX_FMT_YA8
+
+    AV_PIX_FMT_BGR48BE,   ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as big-endian
+    AV_PIX_FMT_BGR48LE,   ///< packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as little-endian
+
+    /**
+     * The following 12 formats have the disadvantage of needing 1 format for each bit depth.
+     * Notice that each 9/10 bits sample is stored in 16 bits with extra padding.
+     * If you want to support multiple bit depths, then using AV_PIX_FMT_YUV420P16* with the bpp stored separately is better.
+     */
+    AV_PIX_FMT_YUV420P9BE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
+    AV_PIX_FMT_YUV420P9LE, ///< planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
+    AV_PIX_FMT_YUV420P10BE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
+    AV_PIX_FMT_YUV420P10LE,///< planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
+    AV_PIX_FMT_YUV422P10BE,///< planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
+    AV_PIX_FMT_YUV422P10LE,///< planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
+    AV_PIX_FMT_YUV444P9BE, ///< planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
+    AV_PIX_FMT_YUV444P9LE, ///< planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
+    AV_PIX_FMT_YUV444P10BE,///< planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
+    AV_PIX_FMT_YUV444P10LE,///< planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
+    AV_PIX_FMT_YUV422P9BE, ///< planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
+    AV_PIX_FMT_YUV422P9LE, ///< planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
+    AV_PIX_FMT_GBRP,      ///< planar GBR 4:4:4 24bpp
+    AV_PIX_FMT_GBR24P = AV_PIX_FMT_GBRP, // alias for #AV_PIX_FMT_GBRP
+    AV_PIX_FMT_GBRP9BE,   ///< planar GBR 4:4:4 27bpp, big-endian
+    AV_PIX_FMT_GBRP9LE,   ///< planar GBR 4:4:4 27bpp, little-endian
+    AV_PIX_FMT_GBRP10BE,  ///< planar GBR 4:4:4 30bpp, big-endian
+    AV_PIX_FMT_GBRP10LE,  ///< planar GBR 4:4:4 30bpp, little-endian
+    AV_PIX_FMT_GBRP16BE,  ///< planar GBR 4:4:4 48bpp, big-endian
+    AV_PIX_FMT_GBRP16LE,  ///< planar GBR 4:4:4 48bpp, little-endian
+    AV_PIX_FMT_YUVA422P,  ///< planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
+    AV_PIX_FMT_YUVA444P,  ///< planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
+    AV_PIX_FMT_YUVA420P9BE,  ///< planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian
+    AV_PIX_FMT_YUVA420P9LE,  ///< planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian
+    AV_PIX_FMT_YUVA422P9BE,  ///< planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
+    AV_PIX_FMT_YUVA422P9LE,  ///< planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), little-endian
+    AV_PIX_FMT_YUVA444P9BE,  ///< planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
+    AV_PIX_FMT_YUVA444P9LE,  ///< planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
+    AV_PIX_FMT_YUVA420P10BE, ///< planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
+    AV_PIX_FMT_YUVA420P10LE, ///< planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
+    AV_PIX_FMT_YUVA422P10BE, ///< planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
+    AV_PIX_FMT_YUVA422P10LE, ///< planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
+    AV_PIX_FMT_YUVA444P10BE, ///< planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
+    AV_PIX_FMT_YUVA444P10LE, ///< planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
+    AV_PIX_FMT_YUVA420P16BE, ///< planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
+    AV_PIX_FMT_YUVA420P16LE, ///< planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
+    AV_PIX_FMT_YUVA422P16BE, ///< planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
+    AV_PIX_FMT_YUVA422P16LE, ///< planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
+    AV_PIX_FMT_YUVA444P16BE, ///< planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
+    AV_PIX_FMT_YUVA444P16LE, ///< planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
+
+    AV_PIX_FMT_VDPAU,     ///< HW acceleration through VDPAU, Picture.data[3] contains a VdpVideoSurface
+
+    AV_PIX_FMT_XYZ12LE,      ///< packed XYZ 4:4:4, 36 bpp, (msb) 12X, 12Y, 12Z (lsb), the 2-byte value for each X/Y/Z is stored as little-endian, the 4 lower bits are set to 0
+    AV_PIX_FMT_XYZ12BE,      ///< packed XYZ 4:4:4, 36 bpp, (msb) 12X, 12Y, 12Z (lsb), the 2-byte value for each X/Y/Z is stored as big-endian, the 4 lower bits are set to 0
+    AV_PIX_FMT_NV16,         ///< interleaved chroma YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
+    AV_PIX_FMT_NV20LE,       ///< interleaved chroma YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
+    AV_PIX_FMT_NV20BE,       ///< interleaved chroma YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
+
+    AV_PIX_FMT_RGBA64BE,     ///< packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is stored as big-endian
+    AV_PIX_FMT_RGBA64LE,     ///< packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian
+    AV_PIX_FMT_BGRA64BE,     ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as big-endian
+    AV_PIX_FMT_BGRA64LE,     ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian
+
+    AV_PIX_FMT_YVYU422,   ///< packed YUV 4:2:2, 16bpp, Y0 Cr Y1 Cb
+
+    AV_PIX_FMT_YA16BE,       ///< 16 bits gray, 16 bits alpha (big-endian)
+    AV_PIX_FMT_YA16LE,       ///< 16 bits gray, 16 bits alpha (little-endian)
+
+    AV_PIX_FMT_GBRAP,        ///< planar GBRA 4:4:4:4 32bpp
+    AV_PIX_FMT_GBRAP16BE,    ///< planar GBRA 4:4:4:4 64bpp, big-endian
+    AV_PIX_FMT_GBRAP16LE,    ///< planar GBRA 4:4:4:4 64bpp, little-endian
+    /**
+     *  HW acceleration through QSV, data[3] contains a pointer to the
+     *  mfxFrameSurface1 structure.
+     */
+    AV_PIX_FMT_QSV,
+    /**
+     * HW acceleration though MMAL, data[3] contains a pointer to the
+     * MMAL_BUFFER_HEADER_T structure.
+     */
+    AV_PIX_FMT_MMAL,
+
+    AV_PIX_FMT_D3D11VA_VLD,  ///< HW decoding through Direct3D11 via old API, Picture.data[3] contains a ID3D11VideoDecoderOutputView pointer
+
+    /**
+     * HW acceleration through CUDA. data[i] contain CUdeviceptr pointers
+     * exactly as for system memory frames.
+     */
+    AV_PIX_FMT_CUDA,
+
+    AV_PIX_FMT_0RGB,        ///< packed RGB 8:8:8, 32bpp, XRGBXRGB...   X=unused/undefined
+    AV_PIX_FMT_RGB0,        ///< packed RGB 8:8:8, 32bpp, RGBXRGBX...   X=unused/undefined
+    AV_PIX_FMT_0BGR,        ///< packed BGR 8:8:8, 32bpp, XBGRXBGR...   X=unused/undefined
+    AV_PIX_FMT_BGR0,        ///< packed BGR 8:8:8, 32bpp, BGRXBGRX...   X=unused/undefined
+
+    AV_PIX_FMT_YUV420P12BE, ///< planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
+    AV_PIX_FMT_YUV420P12LE, ///< planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
+    AV_PIX_FMT_YUV420P14BE, ///< planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
+    AV_PIX_FMT_YUV420P14LE, ///< planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
+    AV_PIX_FMT_YUV422P12BE, ///< planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
+    AV_PIX_FMT_YUV422P12LE, ///< planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
+    AV_PIX_FMT_YUV422P14BE, ///< planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
+    AV_PIX_FMT_YUV422P14LE, ///< planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
+    AV_PIX_FMT_YUV444P12BE, ///< planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
+    AV_PIX_FMT_YUV444P12LE, ///< planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
+    AV_PIX_FMT_YUV444P14BE, ///< planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
+    AV_PIX_FMT_YUV444P14LE, ///< planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
+    AV_PIX_FMT_GBRP12BE,    ///< planar GBR 4:4:4 36bpp, big-endian
+    AV_PIX_FMT_GBRP12LE,    ///< planar GBR 4:4:4 36bpp, little-endian
+    AV_PIX_FMT_GBRP14BE,    ///< planar GBR 4:4:4 42bpp, big-endian
+    AV_PIX_FMT_GBRP14LE,    ///< planar GBR 4:4:4 42bpp, little-endian
+    AV_PIX_FMT_YUVJ411P,    ///< planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV411P and setting color_range
+
+    AV_PIX_FMT_BAYER_BGGR8,    ///< bayer, BGBG..(odd line), GRGR..(even line), 8-bit samples */
+    AV_PIX_FMT_BAYER_RGGB8,    ///< bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples */
+    AV_PIX_FMT_BAYER_GBRG8,    ///< bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples */
+    AV_PIX_FMT_BAYER_GRBG8,    ///< bayer, GRGR..(odd line), BGBG..(even line), 8-bit samples */
+    AV_PIX_FMT_BAYER_BGGR16LE, ///< bayer, BGBG..(odd line), GRGR..(even line), 16-bit samples, little-endian */
+    AV_PIX_FMT_BAYER_BGGR16BE, ///< bayer, BGBG..(odd line), GRGR..(even line), 16-bit samples, big-endian */
+    AV_PIX_FMT_BAYER_RGGB16LE, ///< bayer, RGRG..(odd line), GBGB..(even line), 16-bit samples, little-endian */
+    AV_PIX_FMT_BAYER_RGGB16BE, ///< bayer, RGRG..(odd line), GBGB..(even line), 16-bit samples, big-endian */
+    AV_PIX_FMT_BAYER_GBRG16LE, ///< bayer, GBGB..(odd line), RGRG..(even line), 16-bit samples, little-endian */
+    AV_PIX_FMT_BAYER_GBRG16BE, ///< bayer, GBGB..(odd line), RGRG..(even line), 16-bit samples, big-endian */
+    AV_PIX_FMT_BAYER_GRBG16LE, ///< bayer, GRGR..(odd line), BGBG..(even line), 16-bit samples, little-endian */
+    AV_PIX_FMT_BAYER_GRBG16BE, ///< bayer, GRGR..(odd line), BGBG..(even line), 16-bit samples, big-endian */
+
+    AV_PIX_FMT_XVMC,///< XVideo Motion Acceleration via common packet passing
+
+    AV_PIX_FMT_YUV440P10LE, ///< planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
+    AV_PIX_FMT_YUV440P10BE, ///< planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
+    AV_PIX_FMT_YUV440P12LE, ///< planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
+    AV_PIX_FMT_YUV440P12BE, ///< planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
+    AV_PIX_FMT_AYUV64LE,    ///< packed AYUV 4:4:4,64bpp (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
+    AV_PIX_FMT_AYUV64BE,    ///< packed AYUV 4:4:4,64bpp (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
+
+    AV_PIX_FMT_VIDEOTOOLBOX, ///< hardware decoding through Videotoolbox
+
+    AV_PIX_FMT_P010LE, ///< like NV12, with 10bpp per component, data in the high bits, zeros in the low bits, little-endian
+    AV_PIX_FMT_P010BE, ///< like NV12, with 10bpp per component, data in the high bits, zeros in the low bits, big-endian
+
+    AV_PIX_FMT_GBRAP12BE,  ///< planar GBR 4:4:4:4 48bpp, big-endian
+    AV_PIX_FMT_GBRAP12LE,  ///< planar GBR 4:4:4:4 48bpp, little-endian
+
+    AV_PIX_FMT_GBRAP10BE,  ///< planar GBR 4:4:4:4 40bpp, big-endian
+    AV_PIX_FMT_GBRAP10LE,  ///< planar GBR 4:4:4:4 40bpp, little-endian
+
+    AV_PIX_FMT_MEDIACODEC, ///< hardware decoding through MediaCodec
+
+    AV_PIX_FMT_GRAY12BE,   ///<        Y        , 12bpp, big-endian
+    AV_PIX_FMT_GRAY12LE,   ///<        Y        , 12bpp, little-endian
+    AV_PIX_FMT_GRAY10BE,   ///<        Y        , 10bpp, big-endian
+    AV_PIX_FMT_GRAY10LE,   ///<        Y        , 10bpp, little-endian
+
+    AV_PIX_FMT_P016LE, ///< like NV12, with 16bpp per component, little-endian
+    AV_PIX_FMT_P016BE, ///< like NV12, with 16bpp per component, big-endian
+
+    /**
+     * Hardware surfaces for Direct3D11.
+     *
+     * This is preferred over the legacy AV_PIX_FMT_D3D11VA_VLD. The new D3D11
+     * hwaccel API and filtering support AV_PIX_FMT_D3D11 only.
+     *
+     * data[0] contains a ID3D11Texture2D pointer, and data[1] contains the
+     * texture array index of the frame as intptr_t if the ID3D11Texture2D is
+     * an array texture (or always 0 if it's a normal texture).
+     */
+    AV_PIX_FMT_D3D11,
+
+    AV_PIX_FMT_GRAY9BE,   ///<        Y        , 9bpp, big-endian
+    AV_PIX_FMT_GRAY9LE,   ///<        Y        , 9bpp, little-endian
+
+    AV_PIX_FMT_GBRPF32BE,  ///< IEEE-754 single precision planar GBR 4:4:4,     96bpp, big-endian
+    AV_PIX_FMT_GBRPF32LE,  ///< IEEE-754 single precision planar GBR 4:4:4,     96bpp, little-endian
+    AV_PIX_FMT_GBRAPF32BE, ///< IEEE-754 single precision planar GBRA 4:4:4:4, 128bpp, big-endian
+    AV_PIX_FMT_GBRAPF32LE, ///< IEEE-754 single precision planar GBRA 4:4:4:4, 128bpp, little-endian
+
+    /**
+     * DRM-managed buffers exposed through PRIME buffer sharing.
+     *
+     * data[0] points to an AVDRMFrameDescriptor.
+     */
+    AV_PIX_FMT_DRM_PRIME,
+    /**
+     * Hardware surfaces for OpenCL.
+     *
+     * data[i] contain 2D image objects (typed in C as cl_mem, used
+     * in OpenCL as image2d_t) for each plane of the surface.
+     */
+    AV_PIX_FMT_OPENCL,
+
+    AV_PIX_FMT_GRAY14BE,   ///<        Y        , 14bpp, big-endian
+    AV_PIX_FMT_GRAY14LE,   ///<        Y        , 14bpp, little-endian
+
+    AV_PIX_FMT_GRAYF32BE,  ///< IEEE-754 single precision Y, 32bpp, big-endian
+    AV_PIX_FMT_GRAYF32LE,  ///< IEEE-754 single precision Y, 32bpp, little-endian
+
+    AV_PIX_FMT_YUVA422P12BE, ///< planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, big-endian
+    AV_PIX_FMT_YUVA422P12LE, ///< planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, little-endian
+    AV_PIX_FMT_YUVA444P12BE, ///< planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, big-endian
+    AV_PIX_FMT_YUVA444P12LE, ///< planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, little-endian
+
+    AV_PIX_FMT_NV24,      ///< planar YUV 4:4:4, 24bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (first byte U and the following byte V)
+    AV_PIX_FMT_NV42,      ///< as above, but U and V bytes are swapped
+
+    AV_PIX_FMT_NB         ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
+};
+
+#if AV_HAVE_BIGENDIAN
+#   define AV_PIX_FMT_NE(be, le) AV_PIX_FMT_##be
+#else
+#   define AV_PIX_FMT_NE(be, le) AV_PIX_FMT_##le
+#endif
+
+#define AV_PIX_FMT_RGB32   AV_PIX_FMT_NE(ARGB, BGRA)
+#define AV_PIX_FMT_RGB32_1 AV_PIX_FMT_NE(RGBA, ABGR)
+#define AV_PIX_FMT_BGR32   AV_PIX_FMT_NE(ABGR, RGBA)
+#define AV_PIX_FMT_BGR32_1 AV_PIX_FMT_NE(BGRA, ARGB)
+#define AV_PIX_FMT_0RGB32  AV_PIX_FMT_NE(0RGB, BGR0)
+#define AV_PIX_FMT_0BGR32  AV_PIX_FMT_NE(0BGR, RGB0)
+
+#define AV_PIX_FMT_GRAY9  AV_PIX_FMT_NE(GRAY9BE,  GRAY9LE)
+#define AV_PIX_FMT_GRAY10 AV_PIX_FMT_NE(GRAY10BE, GRAY10LE)
+#define AV_PIX_FMT_GRAY12 AV_PIX_FMT_NE(GRAY12BE, GRAY12LE)
+#define AV_PIX_FMT_GRAY14 AV_PIX_FMT_NE(GRAY14BE, GRAY14LE)
+#define AV_PIX_FMT_GRAY16 AV_PIX_FMT_NE(GRAY16BE, GRAY16LE)
+#define AV_PIX_FMT_YA16   AV_PIX_FMT_NE(YA16BE,   YA16LE)
+#define AV_PIX_FMT_RGB48  AV_PIX_FMT_NE(RGB48BE,  RGB48LE)
+#define AV_PIX_FMT_RGB565 AV_PIX_FMT_NE(RGB565BE, RGB565LE)
+#define AV_PIX_FMT_RGB555 AV_PIX_FMT_NE(RGB555BE, RGB555LE)
+#define AV_PIX_FMT_RGB444 AV_PIX_FMT_NE(RGB444BE, RGB444LE)
+#define AV_PIX_FMT_RGBA64 AV_PIX_FMT_NE(RGBA64BE, RGBA64LE)
+#define AV_PIX_FMT_BGR48  AV_PIX_FMT_NE(BGR48BE,  BGR48LE)
+#define AV_PIX_FMT_BGR565 AV_PIX_FMT_NE(BGR565BE, BGR565LE)
+#define AV_PIX_FMT_BGR555 AV_PIX_FMT_NE(BGR555BE, BGR555LE)
+#define AV_PIX_FMT_BGR444 AV_PIX_FMT_NE(BGR444BE, BGR444LE)
+#define AV_PIX_FMT_BGRA64 AV_PIX_FMT_NE(BGRA64BE, BGRA64LE)
+
+#define AV_PIX_FMT_YUV420P9  AV_PIX_FMT_NE(YUV420P9BE , YUV420P9LE)
+#define AV_PIX_FMT_YUV422P9  AV_PIX_FMT_NE(YUV422P9BE , YUV422P9LE)
+#define AV_PIX_FMT_YUV444P9  AV_PIX_FMT_NE(YUV444P9BE , YUV444P9LE)
+#define AV_PIX_FMT_YUV420P10 AV_PIX_FMT_NE(YUV420P10BE, YUV420P10LE)
+#define AV_PIX_FMT_YUV422P10 AV_PIX_FMT_NE(YUV422P10BE, YUV422P10LE)
+#define AV_PIX_FMT_YUV440P10 AV_PIX_FMT_NE(YUV440P10BE, YUV440P10LE)
+#define AV_PIX_FMT_YUV444P10 AV_PIX_FMT_NE(YUV444P10BE, YUV444P10LE)
+#define AV_PIX_FMT_YUV420P12 AV_PIX_FMT_NE(YUV420P12BE, YUV420P12LE)
+#define AV_PIX_FMT_YUV422P12 AV_PIX_FMT_NE(YUV422P12BE, YUV422P12LE)
+#define AV_PIX_FMT_YUV440P12 AV_PIX_FMT_NE(YUV440P12BE, YUV440P12LE)
+#define AV_PIX_FMT_YUV444P12 AV_PIX_FMT_NE(YUV444P12BE, YUV444P12LE)
+#define AV_PIX_FMT_YUV420P14 AV_PIX_FMT_NE(YUV420P14BE, YUV420P14LE)
+#define AV_PIX_FMT_YUV422P14 AV_PIX_FMT_NE(YUV422P14BE, YUV422P14LE)
+#define AV_PIX_FMT_YUV444P14 AV_PIX_FMT_NE(YUV444P14BE, YUV444P14LE)
+#define AV_PIX_FMT_YUV420P16 AV_PIX_FMT_NE(YUV420P16BE, YUV420P16LE)
+#define AV_PIX_FMT_YUV422P16 AV_PIX_FMT_NE(YUV422P16BE, YUV422P16LE)
+#define AV_PIX_FMT_YUV444P16 AV_PIX_FMT_NE(YUV444P16BE, YUV444P16LE)
+
+#define AV_PIX_FMT_GBRP9     AV_PIX_FMT_NE(GBRP9BE ,    GBRP9LE)
+#define AV_PIX_FMT_GBRP10    AV_PIX_FMT_NE(GBRP10BE,    GBRP10LE)
+#define AV_PIX_FMT_GBRP12    AV_PIX_FMT_NE(GBRP12BE,    GBRP12LE)
+#define AV_PIX_FMT_GBRP14    AV_PIX_FMT_NE(GBRP14BE,    GBRP14LE)
+#define AV_PIX_FMT_GBRP16    AV_PIX_FMT_NE(GBRP16BE,    GBRP16LE)
+#define AV_PIX_FMT_GBRAP10   AV_PIX_FMT_NE(GBRAP10BE,   GBRAP10LE)
+#define AV_PIX_FMT_GBRAP12   AV_PIX_FMT_NE(GBRAP12BE,   GBRAP12LE)
+#define AV_PIX_FMT_GBRAP16   AV_PIX_FMT_NE(GBRAP16BE,   GBRAP16LE)
+
+#define AV_PIX_FMT_BAYER_BGGR16 AV_PIX_FMT_NE(BAYER_BGGR16BE,    BAYER_BGGR16LE)
+#define AV_PIX_FMT_BAYER_RGGB16 AV_PIX_FMT_NE(BAYER_RGGB16BE,    BAYER_RGGB16LE)
+#define AV_PIX_FMT_BAYER_GBRG16 AV_PIX_FMT_NE(BAYER_GBRG16BE,    BAYER_GBRG16LE)
+#define AV_PIX_FMT_BAYER_GRBG16 AV_PIX_FMT_NE(BAYER_GRBG16BE,    BAYER_GRBG16LE)
+
+#define AV_PIX_FMT_GBRPF32    AV_PIX_FMT_NE(GBRPF32BE,  GBRPF32LE)
+#define AV_PIX_FMT_GBRAPF32   AV_PIX_FMT_NE(GBRAPF32BE, GBRAPF32LE)
+
+#define AV_PIX_FMT_GRAYF32    AV_PIX_FMT_NE(GRAYF32BE, GRAYF32LE)
+
+#define AV_PIX_FMT_YUVA420P9  AV_PIX_FMT_NE(YUVA420P9BE , YUVA420P9LE)
+#define AV_PIX_FMT_YUVA422P9  AV_PIX_FMT_NE(YUVA422P9BE , YUVA422P9LE)
+#define AV_PIX_FMT_YUVA444P9  AV_PIX_FMT_NE(YUVA444P9BE , YUVA444P9LE)
+#define AV_PIX_FMT_YUVA420P10 AV_PIX_FMT_NE(YUVA420P10BE, YUVA420P10LE)
+#define AV_PIX_FMT_YUVA422P10 AV_PIX_FMT_NE(YUVA422P10BE, YUVA422P10LE)
+#define AV_PIX_FMT_YUVA444P10 AV_PIX_FMT_NE(YUVA444P10BE, YUVA444P10LE)
+#define AV_PIX_FMT_YUVA422P12 AV_PIX_FMT_NE(YUVA422P12BE, YUVA422P12LE)
+#define AV_PIX_FMT_YUVA444P12 AV_PIX_FMT_NE(YUVA444P12BE, YUVA444P12LE)
+#define AV_PIX_FMT_YUVA420P16 AV_PIX_FMT_NE(YUVA420P16BE, YUVA420P16LE)
+#define AV_PIX_FMT_YUVA422P16 AV_PIX_FMT_NE(YUVA422P16BE, YUVA422P16LE)
+#define AV_PIX_FMT_YUVA444P16 AV_PIX_FMT_NE(YUVA444P16BE, YUVA444P16LE)
+
+#define AV_PIX_FMT_XYZ12      AV_PIX_FMT_NE(XYZ12BE, XYZ12LE)
+#define AV_PIX_FMT_NV20       AV_PIX_FMT_NE(NV20BE,  NV20LE)
+#define AV_PIX_FMT_AYUV64     AV_PIX_FMT_NE(AYUV64BE, AYUV64LE)
+#define AV_PIX_FMT_P010       AV_PIX_FMT_NE(P010BE,  P010LE)
+#define AV_PIX_FMT_P016       AV_PIX_FMT_NE(P016BE,  P016LE)
+
+/**
+  * Chromaticity coordinates of the source primaries.
+  * These values match the ones defined by ISO/IEC 23001-8_2013 § 7.1.
+  */
+enum AVColorPrimaries {
+    AVCOL_PRI_RESERVED0   = 0,
+    AVCOL_PRI_BT709       = 1,  ///< also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
+    AVCOL_PRI_UNSPECIFIED = 2,
+    AVCOL_PRI_RESERVED    = 3,
+    AVCOL_PRI_BT470M      = 4,  ///< also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
+
+    AVCOL_PRI_BT470BG     = 5,  ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
+    AVCOL_PRI_SMPTE170M   = 6,  ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
+    AVCOL_PRI_SMPTE240M   = 7,  ///< functionally identical to above
+    AVCOL_PRI_FILM        = 8,  ///< colour filters using Illuminant C
+    AVCOL_PRI_BT2020      = 9,  ///< ITU-R BT2020
+    AVCOL_PRI_SMPTE428    = 10, ///< SMPTE ST 428-1 (CIE 1931 XYZ)
+    AVCOL_PRI_SMPTEST428_1 = AVCOL_PRI_SMPTE428,
+    AVCOL_PRI_SMPTE431    = 11, ///< SMPTE ST 431-2 (2011) / DCI P3
+    AVCOL_PRI_SMPTE432    = 12, ///< SMPTE ST 432-1 (2010) / P3 D65 / Display P3
+    AVCOL_PRI_JEDEC_P22   = 22, ///< JEDEC P22 phosphors
+    AVCOL_PRI_NB                ///< Not part of ABI
+};
+
+/**
+ * Color Transfer Characteristic.
+ * These values match the ones defined by ISO/IEC 23001-8_2013 § 7.2.
+ */
+enum AVColorTransferCharacteristic {
+    AVCOL_TRC_RESERVED0    = 0,
+    AVCOL_TRC_BT709        = 1,  ///< also ITU-R BT1361
+    AVCOL_TRC_UNSPECIFIED  = 2,
+    AVCOL_TRC_RESERVED     = 3,
+    AVCOL_TRC_GAMMA22      = 4,  ///< also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
+    AVCOL_TRC_GAMMA28      = 5,  ///< also ITU-R BT470BG
+    AVCOL_TRC_SMPTE170M    = 6,  ///< also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC
+    AVCOL_TRC_SMPTE240M    = 7,
+    AVCOL_TRC_LINEAR       = 8,  ///< "Linear transfer characteristics"
+    AVCOL_TRC_LOG          = 9,  ///< "Logarithmic transfer characteristic (100:1 range)"
+    AVCOL_TRC_LOG_SQRT     = 10, ///< "Logarithmic transfer characteristic (100 * Sqrt(10) : 1 range)"
+    AVCOL_TRC_IEC61966_2_4 = 11, ///< IEC 61966-2-4
+    AVCOL_TRC_BT1361_ECG   = 12, ///< ITU-R BT1361 Extended Colour Gamut
+    AVCOL_TRC_IEC61966_2_1 = 13, ///< IEC 61966-2-1 (sRGB or sYCC)
+    AVCOL_TRC_BT2020_10    = 14, ///< ITU-R BT2020 for 10-bit system
+    AVCOL_TRC_BT2020_12    = 15, ///< ITU-R BT2020 for 12-bit system
+    AVCOL_TRC_SMPTE2084    = 16, ///< SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems
+    AVCOL_TRC_SMPTEST2084  = AVCOL_TRC_SMPTE2084,
+    AVCOL_TRC_SMPTE428     = 17, ///< SMPTE ST 428-1
+    AVCOL_TRC_SMPTEST428_1 = AVCOL_TRC_SMPTE428,
+    AVCOL_TRC_ARIB_STD_B67 = 18, ///< ARIB STD-B67, known as "Hybrid log-gamma"
+    AVCOL_TRC_NB                 ///< Not part of ABI
+};
+
+/**
+ * YUV colorspace type.
+ * These values match the ones defined by ISO/IEC 23001-8_2013 § 7.3.
+ */
+enum AVColorSpace {
+    AVCOL_SPC_RGB         = 0,  ///< order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB)
+    AVCOL_SPC_BT709       = 1,  ///< also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
+    AVCOL_SPC_UNSPECIFIED = 2,
+    AVCOL_SPC_RESERVED    = 3,
+    AVCOL_SPC_FCC         = 4,  ///< FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
+    AVCOL_SPC_BT470BG     = 5,  ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
+    AVCOL_SPC_SMPTE170M   = 6,  ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
+    AVCOL_SPC_SMPTE240M   = 7,  ///< functionally identical to above
+    AVCOL_SPC_YCGCO       = 8,  ///< Used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16
+    AVCOL_SPC_YCOCG       = AVCOL_SPC_YCGCO,
+    AVCOL_SPC_BT2020_NCL  = 9,  ///< ITU-R BT2020 non-constant luminance system
+    AVCOL_SPC_BT2020_CL   = 10, ///< ITU-R BT2020 constant luminance system
+    AVCOL_SPC_SMPTE2085   = 11, ///< SMPTE 2085, Y'D'zD'x
+    AVCOL_SPC_CHROMA_DERIVED_NCL = 12, ///< Chromaticity-derived non-constant luminance system
+    AVCOL_SPC_CHROMA_DERIVED_CL = 13, ///< Chromaticity-derived constant luminance system
+    AVCOL_SPC_ICTCP       = 14, ///< ITU-R BT.2100-0, ICtCp
+    AVCOL_SPC_NB                ///< Not part of ABI
+};
+
+/**
+ * MPEG vs JPEG YUV range.
+ */
+enum AVColorRange {
+    AVCOL_RANGE_UNSPECIFIED = 0,
+    AVCOL_RANGE_MPEG        = 1, ///< the normal 219*2^(n-8) "MPEG" YUV ranges
+    AVCOL_RANGE_JPEG        = 2, ///< the normal     2^n-1   "JPEG" YUV ranges
+    AVCOL_RANGE_NB               ///< Not part of ABI
+};
+
+/**
+ * Location of chroma samples.
+ *
+ * Illustration showing the location of the first (top left) chroma sample of the
+ * image, the left shows only luma, the right
+ * shows the location of the chroma sample, the 2 could be imagined to overlay
+ * each other but are drawn separately due to limitations of ASCII
+ *
+ *                1st 2nd       1st 2nd horizontal luma sample positions
+ *                 v   v         v   v
+ *                 ______        ______
+ *1st luma line > |X   X ...    |3 4 X ...     X are luma samples,
+ *                |             |1 2           1-6 are possible chroma positions
+ *2nd luma line > |X   X ...    |5 6 X ...     0 is undefined/unknown position
+ */
+enum AVChromaLocation {
+    AVCHROMA_LOC_UNSPECIFIED = 0,
+    AVCHROMA_LOC_LEFT        = 1, ///< MPEG-2/4 4:2:0, H.264 default for 4:2:0
+    AVCHROMA_LOC_CENTER      = 2, ///< MPEG-1 4:2:0, JPEG 4:2:0, H.263 4:2:0
+    AVCHROMA_LOC_TOPLEFT     = 3, ///< ITU-R 601, SMPTE 274M 296M S314M(DV 4:1:1), mpeg2 4:2:2
+    AVCHROMA_LOC_TOP         = 4,
+    AVCHROMA_LOC_BOTTOMLEFT  = 5,
+    AVCHROMA_LOC_BOTTOM      = 6,
+    AVCHROMA_LOC_NB               ///< Not part of ABI
+};
+
+#endif /* AVUTIL_PIXFMT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/qsort.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/qsort.h
new file mode 100644
index 000000000..39b7a0885
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/qsort.h
@@ -0,0 +1,122 @@
+/*
+ * copyright (c) 2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_QSORT_H
+#define AVUTIL_QSORT_H
+
+#include "common.h"
+
+
+/**
+ * Quicksort
+ * This sort is fast, and fully inplace but not stable and it is possible
+ * to construct input that requires O(n^2) time but this is very unlikely to
+ * happen with non constructed input.
+ */
+#define AV_QSORT(p, num, type, cmp) do {\
+    void *stack[64][2];\
+    int sp= 1;\
+    stack[0][0] = p;\
+    stack[0][1] = (p)+(num)-1;\
+    while(sp){\
+        type *start= stack[--sp][0];\
+        type *end  = stack[  sp][1];\
+        while(start < end){\
+            if(start < end-1) {\
+                int checksort=0;\
+                type *right = end-2;\
+                type *left  = start+1;\
+                type *mid = start + ((end-start)>>1);\
+                if(cmp(start, end) > 0) {\
+                    if(cmp(  end, mid) > 0) FFSWAP(type, *start, *mid);\
+                    else                    FFSWAP(type, *start, *end);\
+                }else{\
+                    if(cmp(start, mid) > 0) FFSWAP(type, *start, *mid);\
+                    else checksort= 1;\
+                }\
+                if(cmp(mid, end) > 0){ \
+                    FFSWAP(type, *mid, *end);\
+                    checksort=0;\
+                }\
+                if(start == end-2) break;\
+                FFSWAP(type, end[-1], *mid);\
+                while(left <= right){\
+                    while(left<=right && cmp(left, end-1) < 0)\
+                        left++;\
+                    while(left<=right && cmp(right, end-1) > 0)\
+                        right--;\
+                    if(left <= right){\
+                        FFSWAP(type, *left, *right);\
+                        left++;\
+                        right--;\
+                    }\
+                }\
+                FFSWAP(type, end[-1], *left);\
+                if(checksort && (mid == left-1 || mid == left)){\
+                    mid= start;\
+                    while(mid<end && cmp(mid, mid+1) <= 0)\
+                        mid++;\
+                    if(mid==end)\
+                        break;\
+                }\
+                if(end-left < left-start){\
+                    stack[sp  ][0]= start;\
+                    stack[sp++][1]= right;\
+                    start = left+1;\
+                }else{\
+                    stack[sp  ][0]= left+1;\
+                    stack[sp++][1]= end;\
+                    end = right;\
+                }\
+            }else{\
+                if(cmp(start, end) > 0)\
+                    FFSWAP(type, *start, *end);\
+                break;\
+            }\
+        }\
+    }\
+} while (0)
+
+/**
+ * Merge sort, this sort requires a temporary buffer and is stable, its worst
+ * case time is O(n log n)
+ * @param p     must be a lvalue pointer, this function may exchange it with tmp
+ * @param tmp   must be a lvalue pointer, this function may exchange it with p
+ */
+#define AV_MSORT(p, tmp, num, type, cmp) do {\
+    unsigned i, j, step;\
+    for(step=1; step<(num); step+=step){\
+        for(i=0; i<(num); i+=2*step){\
+            unsigned a[2] = {i, i+step};\
+            unsigned end = FFMIN(i+2*step, (num));\
+            for(j=i; a[0]<i+step && a[1]<end; j++){\
+                int idx= cmp(p+a[0], p+a[1]) > 0;\
+                tmp[j] = p[ a[idx]++ ];\
+            }\
+            if(a[0]>=i+step) a[0] = a[1];\
+            for(; j<end; j++){\
+                tmp[j] = p[ a[0]++ ];\
+            }\
+        }\
+        FFSWAP(type*, p, tmp);\
+    }\
+} while (0)
+
+#endif /* AVUTIL_QSORT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/random_seed.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/random_seed.c
new file mode 100644
index 000000000..70dc509d2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/random_seed.c
@@ -0,0 +1,145 @@
+/*
+ * Copyright (c) 2009 Baptiste Coudurier <baptiste.coudurier@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#if HAVE_IO_H
+#include <io.h>
+#endif
+#if HAVE_BCRYPT
+#include <windows.h>
+#include <bcrypt.h>
+#endif
+#include <fcntl.h>
+#include <math.h>
+#include <time.h>
+#include <string.h>
+#include "avassert.h"
+#include "internal.h"
+#include "intreadwrite.h"
+#include "timer.h"
+#include "random_seed.h"
+#include "sha.h"
+
+#ifndef TEST
+#define TEST 0
+#endif
+
+static int read_random(uint32_t *dst, const char *file)
+{
+#if HAVE_UNISTD_H
+    int fd = avpriv_open(file, O_RDONLY);
+    int err = -1;
+
+    if (fd == -1)
+        return -1;
+    err = read(fd, dst, sizeof(*dst));
+    close(fd);
+
+    return err;
+#else
+    return -1;
+#endif
+}
+
+static uint32_t get_generic_seed(void)
+{
+    uint64_t tmp[120/8];
+    struct AVSHA *sha = (void*)tmp;
+    clock_t last_t  = 0;
+    clock_t last_td = 0;
+    clock_t init_t = 0;
+    static uint64_t i = 0;
+    static uint32_t buffer[512] = { 0 };
+    unsigned char digest[20];
+    uint64_t last_i = i;
+
+    av_assert0(sizeof(tmp) >= av_sha_size);
+
+    if(TEST){
+        memset(buffer, 0, sizeof(buffer));
+        last_i = i = 0;
+    }else{
+#ifdef AV_READ_TIME
+        buffer[13] ^= AV_READ_TIME();
+        buffer[41] ^= AV_READ_TIME()>>32;
+#endif
+    }
+
+    for (;;) {
+        clock_t t = clock();
+        if (last_t + 2*last_td + (CLOCKS_PER_SEC > 1000) >= t) {
+            last_td = t - last_t;
+            buffer[i & 511] = 1664525*buffer[i & 511] + 1013904223 + (last_td % 3294638521U);
+        } else {
+            last_td = t - last_t;
+            buffer[++i & 511] += last_td % 3294638521U;
+            if ((t - init_t) >= CLOCKS_PER_SEC>>5)
+                if (last_i && i - last_i > 4 || i - last_i > 64 || TEST && i - last_i > 8)
+                    break;
+        }
+        last_t = t;
+        if (!init_t)
+            init_t = t;
+    }
+
+    if(TEST) {
+        buffer[0] = buffer[1] = 0;
+    } else {
+#ifdef AV_READ_TIME
+        buffer[111] += AV_READ_TIME();
+#endif
+    }
+
+    av_sha_init(sha, 160);
+    av_sha_update(sha, (const uint8_t *)buffer, sizeof(buffer));
+    av_sha_final(sha, digest);
+    return AV_RB32(digest) + AV_RB32(digest + 16);
+}
+
+uint32_t av_get_random_seed(void)
+{
+    uint32_t seed;
+
+#if HAVE_BCRYPT
+    BCRYPT_ALG_HANDLE algo_handle;
+    NTSTATUS ret = BCryptOpenAlgorithmProvider(&algo_handle, BCRYPT_RNG_ALGORITHM,
+                                               MS_PRIMITIVE_PROVIDER, 0);
+    if (BCRYPT_SUCCESS(ret)) {
+        NTSTATUS ret = BCryptGenRandom(algo_handle, (UCHAR*)&seed, sizeof(seed), 0);
+        BCryptCloseAlgorithmProvider(algo_handle, 0);
+        if (BCRYPT_SUCCESS(ret))
+            return seed;
+    }
+#endif
+
+#if HAVE_ARC4RANDOM
+    return arc4random();
+#endif
+
+    if (read_random(&seed, "/dev/urandom") == sizeof(seed))
+        return seed;
+    if (read_random(&seed, "/dev/random")  == sizeof(seed))
+        return seed;
+    return get_generic_seed();
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/random_seed.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/random_seed.h
new file mode 100644
index 000000000..0462a048e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/random_seed.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2009 Baptiste Coudurier <baptiste.coudurier@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_RANDOM_SEED_H
+#define AVUTIL_RANDOM_SEED_H
+
+#include <stdint.h>
+/**
+ * @addtogroup lavu_crypto
+ * @{
+ */
+
+/**
+ * Get a seed to use in conjunction with random functions.
+ * This function tries to provide a good seed at a best effort bases.
+ * Its possible to call this function multiple times if more bits are needed.
+ * It can be quite slow, which is why it should only be used as seed for a faster
+ * PRNG. The quality of the seed depends on the platform.
+ */
+uint32_t av_get_random_seed(void);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_RANDOM_SEED_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/rational.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/rational.c
new file mode 100644
index 000000000..35ee08877
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/rational.c
@@ -0,0 +1,184 @@
+/*
+ * rational numbers
+ * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * rational numbers
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "avassert.h"
+#include <limits.h>
+
+#include "common.h"
+#include "mathematics.h"
+#include "rational.h"
+
+int av_reduce(int *dst_num, int *dst_den,
+              int64_t num, int64_t den, int64_t max)
+{
+    AVRational a0 = { 0, 1 }, a1 = { 1, 0 };
+    int sign = (num < 0) ^ (den < 0);
+    int64_t gcd = av_gcd(FFABS(num), FFABS(den));
+
+    if (gcd) {
+        num = FFABS(num) / gcd;
+        den = FFABS(den) / gcd;
+    }
+    if (num <= max && den <= max) {
+        a1 = (AVRational) { num, den };
+        den = 0;
+    }
+
+    while (den) {
+        uint64_t x        = num / den;
+        int64_t next_den  = num - den * x;
+        int64_t a2n       = x * a1.num + a0.num;
+        int64_t a2d       = x * a1.den + a0.den;
+
+        if (a2n > max || a2d > max) {
+            if (a1.num) x =          (max - a0.num) / a1.num;
+            if (a1.den) x = FFMIN(x, (max - a0.den) / a1.den);
+
+            if (den * (2 * x * a1.den + a0.den) > num * a1.den)
+                a1 = (AVRational) { x * a1.num + a0.num, x * a1.den + a0.den };
+            break;
+        }
+
+        a0  = a1;
+        a1  = (AVRational) { a2n, a2d };
+        num = den;
+        den = next_den;
+    }
+    av_assert2(av_gcd(a1.num, a1.den) <= 1U);
+    av_assert2(a1.num <= max && a1.den <= max);
+
+    *dst_num = sign ? -a1.num : a1.num;
+    *dst_den = a1.den;
+
+    return den == 0;
+}
+
+AVRational av_mul_q(AVRational b, AVRational c)
+{
+    av_reduce(&b.num, &b.den,
+               b.num * (int64_t) c.num,
+               b.den * (int64_t) c.den, INT_MAX);
+    return b;
+}
+
+AVRational av_div_q(AVRational b, AVRational c)
+{
+    return av_mul_q(b, (AVRational) { c.den, c.num });
+}
+
+AVRational av_add_q(AVRational b, AVRational c) {
+    av_reduce(&b.num, &b.den,
+               b.num * (int64_t) c.den +
+               c.num * (int64_t) b.den,
+               b.den * (int64_t) c.den, INT_MAX);
+    return b;
+}
+
+AVRational av_sub_q(AVRational b, AVRational c)
+{
+    return av_add_q(b, (AVRational) { -c.num, c.den });
+}
+
+AVRational av_d2q(double d, int max)
+{
+    AVRational a;
+    int exponent;
+    int64_t den;
+    if (isnan(d))
+        return (AVRational) { 0,0 };
+    if (fabs(d) > INT_MAX + 3LL)
+        return (AVRational) { d < 0 ? -1 : 1, 0 };
+    frexp(d, &exponent);
+    exponent = FFMAX(exponent-1, 0);
+    den = 1LL << (61 - exponent);
+    // (int64_t)rint() and llrint() do not work with gcc on ia64 and sparc64,
+    // see Ticket2713 for affected gcc/glibc versions
+    av_reduce(&a.num, &a.den, floor(d * den + 0.5), den, max);
+    if ((!a.num || !a.den) && d && max>0 && max<INT_MAX)
+        av_reduce(&a.num, &a.den, floor(d * den + 0.5), den, INT_MAX);
+
+    return a;
+}
+
+int av_nearer_q(AVRational q, AVRational q1, AVRational q2)
+{
+    /* n/d is q, a/b is the median between q1 and q2 */
+    int64_t a = q1.num * (int64_t)q2.den + q2.num * (int64_t)q1.den;
+    int64_t b = 2 * (int64_t)q1.den * q2.den;
+
+    /* rnd_up(a*d/b) > n => a*d/b > n */
+    int64_t x_up = av_rescale_rnd(a, q.den, b, AV_ROUND_UP);
+
+    /* rnd_down(a*d/b) < n => a*d/b < n */
+    int64_t x_down = av_rescale_rnd(a, q.den, b, AV_ROUND_DOWN);
+
+    return ((x_up > q.num) - (x_down < q.num)) * av_cmp_q(q2, q1);
+}
+
+int av_find_nearest_q_idx(AVRational q, const AVRational* q_list)
+{
+    int i, nearest_q_idx = 0;
+    for (i = 0; q_list[i].den; i++)
+        if (av_nearer_q(q, q_list[i], q_list[nearest_q_idx]) > 0)
+            nearest_q_idx = i;
+
+    return nearest_q_idx;
+}
+
+uint32_t av_q2intfloat(AVRational q) {
+    int64_t n;
+    int shift;
+    int sign = 0;
+
+    if (q.den < 0) {
+        q.den *= -1;
+        q.num *= -1;
+    }
+    if (q.num < 0) {
+        q.num *= -1;
+        sign = 1;
+    }
+
+    if (!q.num && !q.den) return 0xFFC00000;
+    if (!q.num) return 0;
+    if (!q.den) return 0x7F800000 | (q.num & 0x80000000);
+
+    shift = 23 + av_log2(q.den) - av_log2(q.num);
+    if (shift >= 0) n = av_rescale(q.num, 1LL<<shift, q.den);
+    else            n = av_rescale(q.num, 1, ((int64_t)q.den) << -shift);
+
+    shift -= n >= (1<<24);
+    shift += n <  (1<<23);
+
+    if (shift >= 0) n = av_rescale(q.num, 1LL<<shift, q.den);
+    else            n = av_rescale(q.num, 1, ((int64_t)q.den) << -shift);
+
+    av_assert1(n <  (1<<24));
+    av_assert1(n >= (1<<23));
+
+    return sign<<31 | (150-shift)<<23 | (n - (1<<23));
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/rational.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/rational.h
new file mode 100644
index 000000000..5c6b67b4e
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/rational.h
@@ -0,0 +1,214 @@
+/*
+ * rational numbers
+ * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu_math_rational
+ * Utilties for rational number calculation.
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#ifndef AVUTIL_RATIONAL_H
+#define AVUTIL_RATIONAL_H
+
+#include <stdint.h>
+#include <limits.h>
+#include "attributes.h"
+
+/**
+ * @defgroup lavu_math_rational AVRational
+ * @ingroup lavu_math
+ * Rational number calculation.
+ *
+ * While rational numbers can be expressed as floating-point numbers, the
+ * conversion process is a lossy one, so are floating-point operations. On the
+ * other hand, the nature of FFmpeg demands highly accurate calculation of
+ * timestamps. This set of rational number utilities serves as a generic
+ * interface for manipulating rational numbers as pairs of numerators and
+ * denominators.
+ *
+ * Many of the functions that operate on AVRational's have the suffix `_q`, in
+ * reference to the mathematical symbol "ℚ" (Q) which denotes the set of all
+ * rational numbers.
+ *
+ * @{
+ */
+
+/**
+ * Rational number (pair of numerator and denominator).
+ */
+typedef struct AVRational{
+    int num; ///< Numerator
+    int den; ///< Denominator
+} AVRational;
+
+/**
+ * Create an AVRational.
+ *
+ * Useful for compilers that do not support compound literals.
+ *
+ * @note The return value is not reduced.
+ * @see av_reduce()
+ */
+static inline AVRational av_make_q(int num, int den)
+{
+    AVRational r = { num, den };
+    return r;
+}
+
+/**
+ * Compare two rationals.
+ *
+ * @param a First rational
+ * @param b Second rational
+ *
+ * @return One of the following values:
+ *         - 0 if `a == b`
+ *         - 1 if `a > b`
+ *         - -1 if `a < b`
+ *         - `INT_MIN` if one of the values is of the form `0 / 0`
+ */
+static inline int av_cmp_q(AVRational a, AVRational b){
+    const int64_t tmp= a.num * (int64_t)b.den - b.num * (int64_t)a.den;
+
+    if(tmp) return (int)((tmp ^ a.den ^ b.den)>>63)|1;
+    else if(b.den && a.den) return 0;
+    else if(a.num && b.num) return (a.num>>31) - (b.num>>31);
+    else                    return INT_MIN;
+}
+
+/**
+ * Convert an AVRational to a `double`.
+ * @param a AVRational to convert
+ * @return `a` in floating-point form
+ * @see av_d2q()
+ */
+static inline double av_q2d(AVRational a){
+    return a.num / (double) a.den;
+}
+
+/**
+ * Reduce a fraction.
+ *
+ * This is useful for framerate calculations.
+ *
+ * @param[out] dst_num Destination numerator
+ * @param[out] dst_den Destination denominator
+ * @param[in]      num Source numerator
+ * @param[in]      den Source denominator
+ * @param[in]      max Maximum allowed values for `dst_num` & `dst_den`
+ * @return 1 if the operation is exact, 0 otherwise
+ */
+int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max);
+
+/**
+ * Multiply two rationals.
+ * @param b First rational
+ * @param c Second rational
+ * @return b*c
+ */
+AVRational av_mul_q(AVRational b, AVRational c) av_const;
+
+/**
+ * Divide one rational by another.
+ * @param b First rational
+ * @param c Second rational
+ * @return b/c
+ */
+AVRational av_div_q(AVRational b, AVRational c) av_const;
+
+/**
+ * Add two rationals.
+ * @param b First rational
+ * @param c Second rational
+ * @return b+c
+ */
+AVRational av_add_q(AVRational b, AVRational c) av_const;
+
+/**
+ * Subtract one rational from another.
+ * @param b First rational
+ * @param c Second rational
+ * @return b-c
+ */
+AVRational av_sub_q(AVRational b, AVRational c) av_const;
+
+/**
+ * Invert a rational.
+ * @param q value
+ * @return 1 / q
+ */
+static av_always_inline AVRational av_inv_q(AVRational q)
+{
+    AVRational r = { q.den, q.num };
+    return r;
+}
+
+/**
+ * Convert a double precision floating point number to a rational.
+ *
+ * In case of infinity, the returned value is expressed as `{1, 0}` or
+ * `{-1, 0}` depending on the sign.
+ *
+ * @param d   `double` to convert
+ * @param max Maximum allowed numerator and denominator
+ * @return `d` in AVRational form
+ * @see av_q2d()
+ */
+AVRational av_d2q(double d, int max) av_const;
+
+/**
+ * Find which of the two rationals is closer to another rational.
+ *
+ * @param q     Rational to be compared against
+ * @param q1,q2 Rationals to be tested
+ * @return One of the following values:
+ *         - 1 if `q1` is nearer to `q` than `q2`
+ *         - -1 if `q2` is nearer to `q` than `q1`
+ *         - 0 if they have the same distance
+ */
+int av_nearer_q(AVRational q, AVRational q1, AVRational q2);
+
+/**
+ * Find the value in a list of rationals nearest a given reference rational.
+ *
+ * @param q      Reference rational
+ * @param q_list Array of rationals terminated by `{0, 0}`
+ * @return Index of the nearest value found in the array
+ */
+int av_find_nearest_q_idx(AVRational q, const AVRational* q_list);
+
+/**
+ * Convert an AVRational to a IEEE 32-bit `float` expressed in fixed-point
+ * format.
+ *
+ * @param q Rational to be converted
+ * @return Equivalent floating-point value, expressed as an unsigned 32-bit
+ *         integer.
+ * @note The returned value is platform-indepedant.
+ */
+uint32_t av_q2intfloat(AVRational q);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_RATIONAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/rc4.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/rc4.c
new file mode 100644
index 000000000..ffcb11214
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/rc4.c
@@ -0,0 +1,65 @@
+/*
+ * RC4 encryption/decryption/pseudo-random number generator
+ * Copyright (c) 2007 Reimar Doeffinger
+ *
+ * loosely based on LibTomCrypt by Tom St Denis
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "avutil.h"
+#include "common.h"
+#include "mem.h"
+#include "rc4.h"
+
+AVRC4 *av_rc4_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVRC4));
+}
+
+int av_rc4_init(AVRC4 *r, const uint8_t *key, int key_bits, int decrypt) {
+    int i, j;
+    uint8_t y;
+    uint8_t *state = r->state;
+    int keylen = key_bits >> 3;
+    if (key_bits & 7)
+        return AVERROR(EINVAL);
+    for (i = 0; i < 256; i++)
+        state[i] = i;
+    y = 0;
+    // j is i % keylen
+    for (j = 0, i = 0; i < 256; i++, j++) {
+        if (j == keylen) j = 0;
+        y += state[i] + key[j];
+        FFSWAP(uint8_t, state[i], state[y]);
+    }
+    r->x = 1;
+    r->y = state[1];
+    return 0;
+}
+
+void av_rc4_crypt(AVRC4 *r, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt) {
+    uint8_t x = r->x, y = r->y;
+    uint8_t *state = r->state;
+    while (count-- > 0) {
+        uint8_t sum = state[x] + state[y];
+        FFSWAP(uint8_t, state[x], state[y]);
+        *dst++ = src ? *src++ ^ state[sum] : state[sum];
+        x++;
+        y += state[x];
+    }
+    r->x = x; r->y = y;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/rc4.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/rc4.h
new file mode 100644
index 000000000..029cd2ad5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/rc4.h
@@ -0,0 +1,66 @@
+/*
+ * RC4 encryption/decryption/pseudo-random number generator
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_RC4_H
+#define AVUTIL_RC4_H
+
+#include <stdint.h>
+
+/**
+ * @defgroup lavu_rc4 RC4
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+typedef struct AVRC4 {
+    uint8_t state[256];
+    int x, y;
+} AVRC4;
+
+/**
+ * Allocate an AVRC4 context.
+ */
+AVRC4 *av_rc4_alloc(void);
+
+/**
+ * @brief Initializes an AVRC4 context.
+ *
+ * @param key_bits must be a multiple of 8
+ * @param decrypt 0 for encryption, 1 for decryption, currently has no effect
+ * @return zero on success, negative value otherwise
+ */
+int av_rc4_init(struct AVRC4 *d, const uint8_t *key, int key_bits, int decrypt);
+
+/**
+ * @brief Encrypts / decrypts using the RC4 algorithm.
+ *
+ * @param count number of bytes
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst, may be NULL
+ * @param iv not (yet) used for RC4, should be NULL
+ * @param decrypt 0 for encryption, 1 for decryption, not (yet) used
+ */
+void av_rc4_crypt(struct AVRC4 *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_RC4_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/replaygain.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/replaygain.h
new file mode 100644
index 000000000..b49bf1a3d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/replaygain.h
@@ -0,0 +1,50 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_REPLAYGAIN_H
+#define AVUTIL_REPLAYGAIN_H
+
+#include <stdint.h>
+
+/**
+ * ReplayGain information (see
+ * http://wiki.hydrogenaudio.org/index.php?title=ReplayGain_1.0_specification).
+ * The size of this struct is a part of the public ABI.
+ */
+typedef struct AVReplayGain {
+    /**
+     * Track replay gain in microbels (divide by 100000 to get the value in dB).
+     * Should be set to INT32_MIN when unknown.
+     */
+    int32_t track_gain;
+    /**
+     * Peak track amplitude, with 100000 representing full scale (but values
+     * may overflow). 0 when unknown.
+     */
+    uint32_t track_peak;
+    /**
+     * Same as track_gain, but for the whole album.
+     */
+    int32_t album_gain;
+    /**
+     * Same as track_peak, but for the whole album,
+     */
+    uint32_t album_peak;
+} AVReplayGain;
+
+#endif /* AVUTIL_REPLAYGAIN_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/reverse.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/reverse.c
new file mode 100644
index 000000000..105eb03dd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/reverse.c
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+const uint8_t ff_reverse[256] = {
+0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
+0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
+0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
+0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
+0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
+0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
+0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
+0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
+0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
+0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
+0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
+0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
+0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
+0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
+0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
+0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/reverse.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/reverse.h
new file mode 100644
index 000000000..4eb612393
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/reverse.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_REVERSE_H
+#define AVUTIL_REVERSE_H
+
+#include <stdint.h>
+
+extern const uint8_t ff_reverse[256];
+
+#endif /* AVUTIL_REVERSE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/ripemd.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/ripemd.c
new file mode 100644
index 000000000..4f1c4ea89
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/ripemd.c
@@ -0,0 +1,555 @@
+/*
+ * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (C) 2013 James Almer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <string.h>
+
+#include "attributes.h"
+#include "avutil.h"
+#include "bswap.h"
+#include "intreadwrite.h"
+#include "ripemd.h"
+#include "mem.h"
+
+/** hash context */
+typedef struct AVRIPEMD {
+    uint8_t  digest_len;  ///< digest length in 32-bit words
+    uint64_t count;       ///< number of bytes in buffer
+    uint8_t  buffer[64];  ///< 512-bit buffer of input values used in hash updating
+    uint32_t state[10];   ///< current hash value
+    /** function used to update hash for 512-bit input block */
+    void     (*transform)(uint32_t *state, const uint8_t buffer[64]);
+} AVRIPEMD;
+
+const int av_ripemd_size = sizeof(AVRIPEMD);
+
+struct AVRIPEMD *av_ripemd_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVRIPEMD));
+}
+
+static const uint32_t KA[4] = {
+    0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xa953fd4e
+};
+
+static const uint32_t KB[4] = {
+    0x50a28be6, 0x5c4dd124, 0x6d703ef3, 0x7a6d76e9
+};
+
+static const int ROTA[80] = {
+    11, 14, 15, 12,  5,  8,  7 , 9, 11, 13, 14, 15,  6,  7,  9,  8,
+     7 , 6,  8, 13, 11,  9,  7, 15,  7, 12, 15,  9, 11,  7, 13, 12,
+    11, 13,  6,  7, 14,  9, 13, 15, 14,  8, 13,  6,  5, 12,  7,  5,
+    11, 12, 14, 15, 14, 15,  9,  8,  9, 14,  5,  6,  8,  6,  5, 12,
+     9, 15,  5, 11,  6,  8, 13, 12,  5, 12, 13, 14, 11,  8,  5,  6
+};
+
+static const int ROTB[80] = {
+     8,  9,  9, 11, 13, 15, 15,  5,  7,  7,  8, 11, 14, 14, 12,  6,
+     9, 13, 15,  7, 12,  8,  9, 11,  7,  7, 12,  7,  6, 15, 13, 11,
+     9,  7, 15, 11,  8,  6,  6, 14, 12, 13,  5, 14, 13, 13,  7,  5,
+    15,  5,  8, 11, 14, 14,  6, 14,  6,  9, 12,  9, 12,  5, 15,  8,
+     8,  5, 12,  9, 12,  5, 14,  6,  8, 13,  6,  5, 15, 13, 11, 11
+};
+
+static const int WA[80] = {
+     0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
+     7,  4, 13,  1, 10,  6, 15,  3, 12,  0,  9,  5,  2, 14, 11,  8,
+     3, 10, 14,  4,  9, 15,  8,  1,  2,  7,  0,  6, 13, 11,  5, 12,
+     1,  9, 11, 10,  0,  8, 12,  4, 13,  3,  7, 15, 14,  5,  6,  2,
+     4,  0,  5,  9,  7, 12,  2, 10, 14,  1,  3,  8, 11,  6, 15, 13
+};
+
+static const int WB[80] = {
+     5, 14,  7,  0,  9,  2, 11,  4, 13,  6, 15,  8,  1, 10,  3, 12,
+     6, 11,  3,  7,  0, 13,  5, 10, 14, 15,  8, 12,  4,  9,  1,  2,
+    15,  5,  1,  3,  7, 14,  6,  9, 11,  8, 12,  2, 10,  0,  4, 13,
+     8,  6,  4,  1,  3, 11, 15,  0,  5, 12,  2, 13,  9,  7, 10, 14,
+    12, 15, 10,  4,  1,  5,  8,  7,  6,  2, 13, 14,  0,  3,  9, 11
+};
+
+#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
+
+#define ROUND128_0_TO_15(a,b,c,d,e,f,g,h)                               \
+    a = rol(a + ((  b ^ c  ^ d)      + block[WA[n]]),         ROTA[n]); \
+    e = rol(e + ((((f ^ g) & h) ^ g) + block[WB[n]] + KB[0]), ROTB[n]); \
+    n++
+
+#define ROUND128_16_TO_31(a,b,c,d,e,f,g,h)                              \
+    a = rol(a + ((((c ^ d) & b) ^ d) + block[WA[n]] + KA[0]), ROTA[n]); \
+    e = rol(e + (((~g | f) ^ h)      + block[WB[n]] + KB[1]), ROTB[n]); \
+    n++
+
+#define ROUND128_32_TO_47(a,b,c,d,e,f,g,h)                              \
+    a = rol(a + (((~c | b) ^ d)      + block[WA[n]] + KA[1]), ROTA[n]); \
+    e = rol(e + ((((g ^ h) & f) ^ h) + block[WB[n]] + KB[2]), ROTB[n]); \
+    n++
+
+#define ROUND128_48_TO_63(a,b,c,d,e,f,g,h)                              \
+    a = rol(a + ((((b ^ c) & d) ^ c) + block[WA[n]] + KA[2]), ROTA[n]); \
+    e = rol(e + ((  f ^ g  ^ h)      + block[WB[n]]),         ROTB[n]); \
+    n++
+
+#define R128_0                          \
+    ROUND128_0_TO_15(a,b,c,d,e,f,g,h);  \
+    ROUND128_0_TO_15(d,a,b,c,h,e,f,g);  \
+    ROUND128_0_TO_15(c,d,a,b,g,h,e,f);  \
+    ROUND128_0_TO_15(b,c,d,a,f,g,h,e)
+
+#define R128_16                         \
+    ROUND128_16_TO_31(a,b,c,d,e,f,g,h); \
+    ROUND128_16_TO_31(d,a,b,c,h,e,f,g); \
+    ROUND128_16_TO_31(c,d,a,b,g,h,e,f); \
+    ROUND128_16_TO_31(b,c,d,a,f,g,h,e)
+
+#define R128_32                         \
+    ROUND128_32_TO_47(a,b,c,d,e,f,g,h); \
+    ROUND128_32_TO_47(d,a,b,c,h,e,f,g); \
+    ROUND128_32_TO_47(c,d,a,b,g,h,e,f); \
+    ROUND128_32_TO_47(b,c,d,a,f,g,h,e)
+
+#define R128_48                         \
+    ROUND128_48_TO_63(a,b,c,d,e,f,g,h); \
+    ROUND128_48_TO_63(d,a,b,c,h,e,f,g); \
+    ROUND128_48_TO_63(c,d,a,b,g,h,e,f); \
+    ROUND128_48_TO_63(b,c,d,a,f,g,h,e)
+
+static void ripemd128_transform(uint32_t *state, const uint8_t buffer[64])
+{
+    uint32_t a, b, c, d, e, f, g, h, av_unused t;
+    uint32_t block[16];
+    int n;
+
+    a = e = state[0];
+    b = f = state[1];
+    c = g = state[2];
+    d = h = state[3];
+
+    for (n = 0; n < 16; n++)
+        block[n] = AV_RL32(buffer + 4 * n);
+    n = 0;
+
+#if CONFIG_SMALL
+    for (; n < 16;) {
+        ROUND128_0_TO_15(a,b,c,d,e,f,g,h);
+        t = d; d = c; c = b; b = a; a = t;
+        t = h; h = g; g = f; f = e; e = t;
+    }
+
+    for (; n < 32;) {
+        ROUND128_16_TO_31(a,b,c,d,e,f,g,h);
+        t = d; d = c; c = b; b = a; a = t;
+        t = h; h = g; g = f; f = e; e = t;
+    }
+
+    for (; n < 48;) {
+        ROUND128_32_TO_47(a,b,c,d,e,f,g,h);
+        t = d; d = c; c = b; b = a; a = t;
+        t = h; h = g; g = f; f = e; e = t;
+    }
+
+    for (; n < 64;) {
+        ROUND128_48_TO_63(a,b,c,d,e,f,g,h);
+        t = d; d = c; c = b; b = a; a = t;
+        t = h; h = g; g = f; f = e; e = t;
+    }
+#else
+
+    R128_0; R128_0; R128_0; R128_0;
+
+    R128_16; R128_16; R128_16; R128_16;
+
+    R128_32; R128_32; R128_32; R128_32;
+
+    R128_48; R128_48; R128_48; R128_48;
+#endif
+
+    h += c + state[1];
+    state[1] = state[2] + d + e;
+    state[2] = state[3] + a + f;
+    state[3] = state[0] + b + g;
+    state[0] = h;
+}
+
+static void ripemd256_transform(uint32_t *state, const uint8_t buffer[64])
+{
+    uint32_t a, b, c, d, e, f, g, h, av_unused t;
+    uint32_t block[16];
+    int n;
+
+    a = state[0]; b = state[1]; c = state[2]; d = state[3];
+    e = state[4]; f = state[5]; g = state[6]; h = state[7];
+
+    for (n = 0; n < 16; n++)
+        block[n] = AV_RL32(buffer + 4 * n);
+    n = 0;
+
+#if CONFIG_SMALL
+    for (; n < 16;) {
+        ROUND128_0_TO_15(a,b,c,d,e,f,g,h);
+        t = d; d = c; c = b; b = a; a = t;
+        t = h; h = g; g = f; f = e; e = t;
+    }
+    FFSWAP(uint32_t, a, e);
+
+    for (; n < 32;) {
+        ROUND128_16_TO_31(a,b,c,d,e,f,g,h);
+        t = d; d = c; c = b; b = a; a = t;
+        t = h; h = g; g = f; f = e; e = t;
+    }
+    FFSWAP(uint32_t, b, f);
+
+    for (; n < 48;) {
+        ROUND128_32_TO_47(a,b,c,d,e,f,g,h);
+        t = d; d = c; c = b; b = a; a = t;
+        t = h; h = g; g = f; f = e; e = t;
+    }
+    FFSWAP(uint32_t, c, g);
+
+    for (; n < 64;) {
+        ROUND128_48_TO_63(a,b,c,d,e,f,g,h);
+        t = d; d = c; c = b; b = a; a = t;
+        t = h; h = g; g = f; f = e; e = t;
+    }
+    FFSWAP(uint32_t, d, h);
+#else
+
+    R128_0; R128_0; R128_0; R128_0;
+    FFSWAP(uint32_t, a, e);
+
+    R128_16; R128_16; R128_16; R128_16;
+    FFSWAP(uint32_t, b, f);
+
+    R128_32; R128_32; R128_32; R128_32;
+    FFSWAP(uint32_t, c, g);
+
+    R128_48; R128_48; R128_48; R128_48;
+    FFSWAP(uint32_t, d, h);
+#endif
+
+    state[0] += a; state[1] += b; state[2] += c; state[3] += d;
+    state[4] += e; state[5] += f; state[6] += g; state[7] += h;
+}
+
+#define ROTATE(x,y) \
+    x = rol(x, 10); \
+    y = rol(y, 10); \
+    n++
+
+#define ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j)                               \
+    a = rol(a + ((  b ^ c  ^ d)      + block[WA[n]]),         ROTA[n]) + e; \
+    f = rol(f + (((~i | h) ^ g)      + block[WB[n]] + KB[0]), ROTB[n]) + j; \
+    ROTATE(c,h)
+
+#define ROUND160_16_TO_31(a,b,c,d,e,f,g,h,i,j)                              \
+    a = rol(a + ((((c ^ d) & b) ^ d) + block[WA[n]] + KA[0]), ROTA[n]) + e; \
+    f = rol(f + ((((g ^ h) & i) ^ h) + block[WB[n]] + KB[1]), ROTB[n]) + j; \
+    ROTATE(c,h)
+
+#define ROUND160_32_TO_47(a,b,c,d,e,f,g,h,i,j)                              \
+    a = rol(a + (((~c | b) ^ d)      + block[WA[n]] + KA[1]), ROTA[n]) + e; \
+    f = rol(f + (((~h | g) ^ i)      + block[WB[n]] + KB[2]), ROTB[n]) + j; \
+    ROTATE(c,h)
+
+#define ROUND160_48_TO_63(a,b,c,d,e,f,g,h,i,j)                              \
+    a = rol(a + ((((b ^ c) & d) ^ c) + block[WA[n]] + KA[2]), ROTA[n]) + e; \
+    f = rol(f + ((((h ^ i) & g) ^ i) + block[WB[n]] + KB[3]), ROTB[n]) + j; \
+    ROTATE(c,h)
+
+#define ROUND160_64_TO_79(a,b,c,d,e,f,g,h,i,j)                              \
+    a = rol(a + (((~d | c) ^ b)      + block[WA[n]] + KA[3]), ROTA[n]) + e; \
+    f = rol(f + ((  g ^ h  ^ i)      + block[WB[n]]),         ROTB[n]) + j; \
+    ROTATE(c,h)
+
+#define R160_0                              \
+    ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j);  \
+    ROUND160_0_TO_15(e,a,b,c,d,j,f,g,h,i);  \
+    ROUND160_0_TO_15(d,e,a,b,c,i,j,f,g,h);  \
+    ROUND160_0_TO_15(c,d,e,a,b,h,i,j,f,g);  \
+    ROUND160_0_TO_15(b,c,d,e,a,g,h,i,j,f)
+
+#define R160_16                             \
+    ROUND160_16_TO_31(e,a,b,c,d,j,f,g,h,i); \
+    ROUND160_16_TO_31(d,e,a,b,c,i,j,f,g,h); \
+    ROUND160_16_TO_31(c,d,e,a,b,h,i,j,f,g); \
+    ROUND160_16_TO_31(b,c,d,e,a,g,h,i,j,f); \
+    ROUND160_16_TO_31(a,b,c,d,e,f,g,h,i,j)
+
+#define R160_32                             \
+    ROUND160_32_TO_47(d,e,a,b,c,i,j,f,g,h); \
+    ROUND160_32_TO_47(c,d,e,a,b,h,i,j,f,g); \
+    ROUND160_32_TO_47(b,c,d,e,a,g,h,i,j,f); \
+    ROUND160_32_TO_47(a,b,c,d,e,f,g,h,i,j); \
+    ROUND160_32_TO_47(e,a,b,c,d,j,f,g,h,i)
+
+#define R160_48                             \
+    ROUND160_48_TO_63(c,d,e,a,b,h,i,j,f,g); \
+    ROUND160_48_TO_63(b,c,d,e,a,g,h,i,j,f); \
+    ROUND160_48_TO_63(a,b,c,d,e,f,g,h,i,j); \
+    ROUND160_48_TO_63(e,a,b,c,d,j,f,g,h,i); \
+    ROUND160_48_TO_63(d,e,a,b,c,i,j,f,g,h)
+
+#define R160_64                             \
+    ROUND160_64_TO_79(b,c,d,e,a,g,h,i,j,f); \
+    ROUND160_64_TO_79(a,b,c,d,e,f,g,h,i,j); \
+    ROUND160_64_TO_79(e,a,b,c,d,j,f,g,h,i); \
+    ROUND160_64_TO_79(d,e,a,b,c,i,j,f,g,h); \
+    ROUND160_64_TO_79(c,d,e,a,b,h,i,j,f,g)
+
+static void ripemd160_transform(uint32_t *state, const uint8_t buffer[64])
+{
+    uint32_t a, b, c, d, e, f, g, h, i, j, av_unused t;
+    uint32_t block[16];
+    int n;
+
+    a = f = state[0];
+    b = g = state[1];
+    c = h = state[2];
+    d = i = state[3];
+    e = j = state[4];
+
+    for (n = 0; n < 16; n++)
+        block[n] = AV_RL32(buffer + 4 * n);
+    n = 0;
+
+#if CONFIG_SMALL
+    for (; n < 16;) {
+        ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j);
+        t = e; e = d; d = c; c = b; b = a; a = t;
+        t = j; j = i; i = h; h = g; g = f; f = t;
+    }
+
+    for (; n < 32;) {
+        ROUND160_16_TO_31(a,b,c,d,e,f,g,h,i,j);
+        t = e; e = d; d = c; c = b; b = a; a = t;
+        t = j; j = i; i = h; h = g; g = f; f = t;
+    }
+
+    for (; n < 48;) {
+        ROUND160_32_TO_47(a,b,c,d,e,f,g,h,i,j);
+        t = e; e = d; d = c; c = b; b = a; a = t;
+        t = j; j = i; i = h; h = g; g = f; f = t;
+    }
+
+    for (; n < 64;) {
+        ROUND160_48_TO_63(a,b,c,d,e,f,g,h,i,j);
+        t = e; e = d; d = c; c = b; b = a; a = t;
+        t = j; j = i; i = h; h = g; g = f; f = t;
+    }
+
+    for (; n < 80;) {
+        ROUND160_64_TO_79(a,b,c,d,e,f,g,h,i,j);
+        t = e; e = d; d = c; c = b; b = a; a = t;
+        t = j; j = i; i = h; h = g; g = f; f = t;
+    }
+#else
+
+    R160_0; R160_0; R160_0;
+    ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j);
+
+    R160_16; R160_16; R160_16;
+    ROUND160_16_TO_31(e,a,b,c,d,j,f,g,h,i);
+
+    R160_32; R160_32; R160_32;
+    ROUND160_32_TO_47(d,e,a,b,c,i,j,f,g,h);
+
+    R160_48; R160_48; R160_48;
+    ROUND160_48_TO_63(c,d,e,a,b,h,i,j,f,g);
+
+    R160_64; R160_64; R160_64;
+    ROUND160_64_TO_79(b,c,d,e,a,g,h,i,j,f);
+#endif
+
+    i += c + state[1];
+    state[1] = state[2] + d + j;
+    state[2] = state[3] + e + f;
+    state[3] = state[4] + a + g;
+    state[4] = state[0] + b + h;
+    state[0] = i;
+}
+
+static void ripemd320_transform(uint32_t *state, const uint8_t buffer[64])
+{
+    uint32_t a, b, c, d, e, f, g, h, i, j, av_unused t;
+    uint32_t block[16];
+    int n;
+
+    a = state[0]; b = state[1]; c = state[2]; d = state[3]; e = state[4];
+    f = state[5]; g = state[6]; h = state[7]; i = state[8]; j = state[9];
+
+    for (n = 0; n < 16; n++)
+        block[n] = AV_RL32(buffer + 4 * n);
+    n = 0;
+
+#if CONFIG_SMALL
+    for (; n < 16;) {
+        ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j);
+        t = e; e = d; d = c; c = b; b = a; a = t;
+        t = j; j = i; i = h; h = g; g = f; f = t;
+    }
+    FFSWAP(uint32_t, b, g);
+
+    for (; n < 32;) {
+        ROUND160_16_TO_31(a,b,c,d,e,f,g,h,i,j);
+        t = e; e = d; d = c; c = b; b = a; a = t;
+        t = j; j = i; i = h; h = g; g = f; f = t;
+    }
+    FFSWAP(uint32_t, d, i);
+
+    for (; n < 48;) {
+        ROUND160_32_TO_47(a,b,c,d,e,f,g,h,i,j);
+        t = e; e = d; d = c; c = b; b = a; a = t;
+        t = j; j = i; i = h; h = g; g = f; f = t;
+    }
+    FFSWAP(uint32_t, a, f);
+
+    for (; n < 64;) {
+        ROUND160_48_TO_63(a,b,c,d,e,f,g,h,i,j);
+        t = e; e = d; d = c; c = b; b = a; a = t;
+        t = j; j = i; i = h; h = g; g = f; f = t;
+    }
+    FFSWAP(uint32_t, c, h);
+
+    for (; n < 80;) {
+        ROUND160_64_TO_79(a,b,c,d,e,f,g,h,i,j);
+        t = e; e = d; d = c; c = b; b = a; a = t;
+        t = j; j = i; i = h; h = g; g = f; f = t;
+    }
+    FFSWAP(uint32_t, e, j);
+#else
+
+    R160_0; R160_0; R160_0;
+    ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j);
+    FFSWAP(uint32_t, a, f);
+
+    R160_16; R160_16; R160_16;
+    ROUND160_16_TO_31(e,a,b,c,d,j,f,g,h,i);
+    FFSWAP(uint32_t, b, g);
+
+    R160_32; R160_32; R160_32;
+    ROUND160_32_TO_47(d,e,a,b,c,i,j,f,g,h);
+    FFSWAP(uint32_t, c, h);
+
+    R160_48; R160_48; R160_48;
+    ROUND160_48_TO_63(c,d,e,a,b,h,i,j,f,g);
+    FFSWAP(uint32_t, d, i);
+
+    R160_64; R160_64; R160_64;
+    ROUND160_64_TO_79(b,c,d,e,a,g,h,i,j,f);
+    FFSWAP(uint32_t, e, j);
+#endif
+
+    state[0] += a; state[1] += b; state[2] += c; state[3] += d; state[4] += e;
+    state[5] += f; state[6] += g; state[7] += h; state[8] += i; state[9] += j;
+}
+
+av_cold int av_ripemd_init(AVRIPEMD *ctx, int bits)
+{
+    ctx->digest_len = bits >> 5;
+    switch (bits) {
+    case 128: // RIPEMD-128
+        ctx->state[0] = 0x67452301;
+        ctx->state[1] = 0xEFCDAB89;
+        ctx->state[2] = 0x98BADCFE;
+        ctx->state[3] = 0x10325476;
+        ctx->transform = ripemd128_transform;
+        break;
+    case 160: // RIPEMD-160
+        ctx->state[0] = 0x67452301;
+        ctx->state[1] = 0xEFCDAB89;
+        ctx->state[2] = 0x98BADCFE;
+        ctx->state[3] = 0x10325476;
+        ctx->state[4] = 0xC3D2E1F0;
+        ctx->transform = ripemd160_transform;
+        break;
+    case 256: // RIPEMD-256
+        ctx->state[0] = 0x67452301;
+        ctx->state[1] = 0xEFCDAB89;
+        ctx->state[2] = 0x98BADCFE;
+        ctx->state[3] = 0x10325476;
+        ctx->state[4] = 0x76543210;
+        ctx->state[5] = 0xFEDCBA98;
+        ctx->state[6] = 0x89ABCDEF;
+        ctx->state[7] = 0x01234567;
+        ctx->transform = ripemd256_transform;
+        break;
+    case 320: // RIPEMD-320
+        ctx->state[0] = 0x67452301;
+        ctx->state[1] = 0xEFCDAB89;
+        ctx->state[2] = 0x98BADCFE;
+        ctx->state[3] = 0x10325476;
+        ctx->state[4] = 0xC3D2E1F0;
+        ctx->state[5] = 0x76543210;
+        ctx->state[6] = 0xFEDCBA98;
+        ctx->state[7] = 0x89ABCDEF;
+        ctx->state[8] = 0x01234567;
+        ctx->state[9] = 0x3C2D1E0F;
+        ctx->transform = ripemd320_transform;
+        break;
+    default:
+        return AVERROR(EINVAL);
+    }
+    ctx->count = 0;
+    return 0;
+}
+
+#if FF_API_CRYPTO_SIZE_T
+void av_ripemd_update(AVRIPEMD* ctx, const uint8_t* data, unsigned int len)
+#else
+void av_ripemd_update(AVRIPEMD* ctx, const uint8_t* data, size_t len)
+#endif
+{
+    unsigned int i, j;
+
+    j = ctx->count & 63;
+    ctx->count += len;
+#if CONFIG_SMALL
+    for (i = 0; i < len; i++) {
+        ctx->buffer[j++] = data[i];
+        if (64 == j) {
+            ctx->transform(ctx->state, ctx->buffer);
+            j = 0;
+        }
+    }
+#else
+    if ((j + len) > 63) {
+        memcpy(&ctx->buffer[j], data, (i = 64 - j));
+        ctx->transform(ctx->state, ctx->buffer);
+        for (; i + 63 < len; i += 64)
+            ctx->transform(ctx->state, &data[i]);
+        j = 0;
+    } else
+        i = 0;
+    memcpy(&ctx->buffer[j], &data[i], len - i);
+#endif
+}
+
+void av_ripemd_final(AVRIPEMD* ctx, uint8_t *digest)
+{
+    int i;
+    uint64_t finalcount = av_le2ne64(ctx->count << 3);
+
+    av_ripemd_update(ctx, "\200", 1);
+    while ((ctx->count & 63) != 56)
+        av_ripemd_update(ctx, "", 1);
+    av_ripemd_update(ctx, (uint8_t *)&finalcount, 8); /* Should cause a transform() */
+    for (i = 0; i < ctx->digest_len; i++)
+        AV_WL32(digest + i*4, ctx->state[i]);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/ripemd.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/ripemd.h
new file mode 100644
index 000000000..0db6858ff
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/ripemd.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (C) 2013 James Almer <jamrial@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu_ripemd
+ * Public header for RIPEMD hash function implementation.
+ */
+
+#ifndef AVUTIL_RIPEMD_H
+#define AVUTIL_RIPEMD_H
+
+#include <stdint.h>
+
+#include "attributes.h"
+#include "version.h"
+
+/**
+ * @defgroup lavu_ripemd RIPEMD
+ * @ingroup lavu_hash
+ * RIPEMD hash function implementation.
+ *
+ * @{
+ */
+
+extern const int av_ripemd_size;
+
+struct AVRIPEMD;
+
+/**
+ * Allocate an AVRIPEMD context.
+ */
+struct AVRIPEMD *av_ripemd_alloc(void);
+
+/**
+ * Initialize RIPEMD hashing.
+ *
+ * @param context pointer to the function context (of size av_ripemd_size)
+ * @param bits    number of bits in digest (128, 160, 256 or 320 bits)
+ * @return        zero if initialization succeeded, -1 otherwise
+ */
+int av_ripemd_init(struct AVRIPEMD* context, int bits);
+
+/**
+ * Update hash value.
+ *
+ * @param context hash function context
+ * @param data    input data to update hash with
+ * @param len     input data length
+ */
+#if FF_API_CRYPTO_SIZE_T
+void av_ripemd_update(struct AVRIPEMD* context, const uint8_t* data, unsigned int len);
+#else
+void av_ripemd_update(struct AVRIPEMD* context, const uint8_t* data, size_t len);
+#endif
+
+/**
+ * Finish hashing and output digest value.
+ *
+ * @param context hash function context
+ * @param digest  buffer where output digest value is stored
+ */
+void av_ripemd_final(struct AVRIPEMD* context, uint8_t *digest);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_RIPEMD_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/samplefmt.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/samplefmt.c
new file mode 100644
index 000000000..fc077f644
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/samplefmt.c
@@ -0,0 +1,254 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "common.h"
+#include "samplefmt.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+typedef struct SampleFmtInfo {
+    char name[8];
+    int bits;
+    int planar;
+    enum AVSampleFormat altform; ///< planar<->packed alternative form
+} SampleFmtInfo;
+
+/** this table gives more information about formats */
+static const SampleFmtInfo sample_fmt_info[AV_SAMPLE_FMT_NB] = {
+    [AV_SAMPLE_FMT_U8]   = { .name =   "u8", .bits =  8, .planar = 0, .altform = AV_SAMPLE_FMT_U8P  },
+    [AV_SAMPLE_FMT_S16]  = { .name =  "s16", .bits = 16, .planar = 0, .altform = AV_SAMPLE_FMT_S16P },
+    [AV_SAMPLE_FMT_S32]  = { .name =  "s32", .bits = 32, .planar = 0, .altform = AV_SAMPLE_FMT_S32P },
+    [AV_SAMPLE_FMT_S64]  = { .name =  "s64", .bits = 64, .planar = 0, .altform = AV_SAMPLE_FMT_S64P },
+    [AV_SAMPLE_FMT_FLT]  = { .name =  "flt", .bits = 32, .planar = 0, .altform = AV_SAMPLE_FMT_FLTP },
+    [AV_SAMPLE_FMT_DBL]  = { .name =  "dbl", .bits = 64, .planar = 0, .altform = AV_SAMPLE_FMT_DBLP },
+    [AV_SAMPLE_FMT_U8P]  = { .name =  "u8p", .bits =  8, .planar = 1, .altform = AV_SAMPLE_FMT_U8   },
+    [AV_SAMPLE_FMT_S16P] = { .name = "s16p", .bits = 16, .planar = 1, .altform = AV_SAMPLE_FMT_S16  },
+    [AV_SAMPLE_FMT_S32P] = { .name = "s32p", .bits = 32, .planar = 1, .altform = AV_SAMPLE_FMT_S32  },
+    [AV_SAMPLE_FMT_S64P] = { .name = "s64p", .bits = 64, .planar = 1, .altform = AV_SAMPLE_FMT_S64  },
+    [AV_SAMPLE_FMT_FLTP] = { .name = "fltp", .bits = 32, .planar = 1, .altform = AV_SAMPLE_FMT_FLT  },
+    [AV_SAMPLE_FMT_DBLP] = { .name = "dblp", .bits = 64, .planar = 1, .altform = AV_SAMPLE_FMT_DBL  },
+};
+
+const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt)
+{
+    if (sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB)
+        return NULL;
+    return sample_fmt_info[sample_fmt].name;
+}
+
+enum AVSampleFormat av_get_sample_fmt(const char *name)
+{
+    int i;
+
+    for (i = 0; i < AV_SAMPLE_FMT_NB; i++)
+        if (!strcmp(sample_fmt_info[i].name, name))
+            return i;
+    return AV_SAMPLE_FMT_NONE;
+}
+
+enum AVSampleFormat av_get_alt_sample_fmt(enum AVSampleFormat sample_fmt, int planar)
+{
+    if (sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB)
+        return AV_SAMPLE_FMT_NONE;
+    if (sample_fmt_info[sample_fmt].planar == planar)
+        return sample_fmt;
+    return sample_fmt_info[sample_fmt].altform;
+}
+
+enum AVSampleFormat av_get_packed_sample_fmt(enum AVSampleFormat sample_fmt)
+{
+    if (sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB)
+        return AV_SAMPLE_FMT_NONE;
+    if (sample_fmt_info[sample_fmt].planar)
+        return sample_fmt_info[sample_fmt].altform;
+    return sample_fmt;
+}
+
+enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt)
+{
+    if (sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB)
+        return AV_SAMPLE_FMT_NONE;
+    if (sample_fmt_info[sample_fmt].planar)
+        return sample_fmt;
+    return sample_fmt_info[sample_fmt].altform;
+}
+
+char *av_get_sample_fmt_string (char *buf, int buf_size, enum AVSampleFormat sample_fmt)
+{
+    /* print header */
+    if (sample_fmt < 0)
+        snprintf(buf, buf_size, "name  " " depth");
+    else if (sample_fmt < AV_SAMPLE_FMT_NB) {
+        SampleFmtInfo info = sample_fmt_info[sample_fmt];
+        snprintf (buf, buf_size, "%-6s" "   %2d ", info.name, info.bits);
+    }
+
+    return buf;
+}
+
+int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
+{
+     return sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB ?
+        0 : sample_fmt_info[sample_fmt].bits >> 3;
+}
+
+int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt)
+{
+     if (sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB)
+         return 0;
+     return sample_fmt_info[sample_fmt].planar;
+}
+
+int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
+                               enum AVSampleFormat sample_fmt, int align)
+{
+    int line_size;
+    int sample_size = av_get_bytes_per_sample(sample_fmt);
+    int planar      = av_sample_fmt_is_planar(sample_fmt);
+
+    /* validate parameter ranges */
+    if (!sample_size || nb_samples <= 0 || nb_channels <= 0)
+        return AVERROR(EINVAL);
+
+    /* auto-select alignment if not specified */
+    if (!align) {
+        if (nb_samples > INT_MAX - 31)
+            return AVERROR(EINVAL);
+        align = 1;
+        nb_samples = FFALIGN(nb_samples, 32);
+    }
+
+    /* check for integer overflow */
+    if (nb_channels > INT_MAX / align ||
+        (int64_t)nb_channels * nb_samples > (INT_MAX - (align * nb_channels)) / sample_size)
+        return AVERROR(EINVAL);
+
+    line_size = planar ? FFALIGN(nb_samples * sample_size,               align) :
+                         FFALIGN(nb_samples * sample_size * nb_channels, align);
+    if (linesize)
+        *linesize = line_size;
+
+    return planar ? line_size * nb_channels : line_size;
+}
+
+int av_samples_fill_arrays(uint8_t **audio_data, int *linesize,
+                           const uint8_t *buf, int nb_channels, int nb_samples,
+                           enum AVSampleFormat sample_fmt, int align)
+{
+    int ch, planar, buf_size, line_size;
+
+    planar   = av_sample_fmt_is_planar(sample_fmt);
+    buf_size = av_samples_get_buffer_size(&line_size, nb_channels, nb_samples,
+                                          sample_fmt, align);
+    if (buf_size < 0)
+        return buf_size;
+
+    audio_data[0] = (uint8_t *)buf;
+    for (ch = 1; planar && ch < nb_channels; ch++)
+        audio_data[ch] = audio_data[ch-1] + line_size;
+
+    if (linesize)
+        *linesize = line_size;
+
+    return buf_size;
+}
+
+int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels,
+                     int nb_samples, enum AVSampleFormat sample_fmt, int align)
+{
+    uint8_t *buf;
+    int size = av_samples_get_buffer_size(NULL, nb_channels, nb_samples,
+                                          sample_fmt, align);
+    if (size < 0)
+        return size;
+
+    buf = av_malloc(size);
+    if (!buf)
+        return AVERROR(ENOMEM);
+
+    size = av_samples_fill_arrays(audio_data, linesize, buf, nb_channels,
+                                  nb_samples, sample_fmt, align);
+    if (size < 0) {
+        av_free(buf);
+        return size;
+    }
+
+    av_samples_set_silence(audio_data, 0, nb_samples, nb_channels, sample_fmt);
+
+    return size;
+}
+
+int av_samples_alloc_array_and_samples(uint8_t ***audio_data, int *linesize, int nb_channels,
+                                       int nb_samples, enum AVSampleFormat sample_fmt, int align)
+{
+    int ret, nb_planes = av_sample_fmt_is_planar(sample_fmt) ? nb_channels : 1;
+
+    *audio_data = av_calloc(nb_planes, sizeof(**audio_data));
+    if (!*audio_data)
+        return AVERROR(ENOMEM);
+    ret = av_samples_alloc(*audio_data, linesize, nb_channels,
+                           nb_samples, sample_fmt, align);
+    if (ret < 0)
+        av_freep(audio_data);
+    return ret;
+}
+
+int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset,
+                    int src_offset, int nb_samples, int nb_channels,
+                    enum AVSampleFormat sample_fmt)
+{
+    int planar      = av_sample_fmt_is_planar(sample_fmt);
+    int planes      = planar ? nb_channels : 1;
+    int block_align = av_get_bytes_per_sample(sample_fmt) * (planar ? 1 : nb_channels);
+    int data_size   = nb_samples * block_align;
+    int i;
+
+    dst_offset *= block_align;
+    src_offset *= block_align;
+
+    if((dst[0] < src[0] ? src[0] - dst[0] : dst[0] - src[0]) >= data_size) {
+        for (i = 0; i < planes; i++)
+            memcpy(dst[i] + dst_offset, src[i] + src_offset, data_size);
+    } else {
+        for (i = 0; i < planes; i++)
+            memmove(dst[i] + dst_offset, src[i] + src_offset, data_size);
+    }
+
+    return 0;
+}
+
+int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples,
+                           int nb_channels, enum AVSampleFormat sample_fmt)
+{
+    int planar      = av_sample_fmt_is_planar(sample_fmt);
+    int planes      = planar ? nb_channels : 1;
+    int block_align = av_get_bytes_per_sample(sample_fmt) * (planar ? 1 : nb_channels);
+    int data_size   = nb_samples * block_align;
+    int fill_char   = (sample_fmt == AV_SAMPLE_FMT_U8 ||
+                     sample_fmt == AV_SAMPLE_FMT_U8P) ? 0x80 : 0x00;
+    int i;
+
+    offset *= block_align;
+
+    for (i = 0; i < planes; i++)
+        memset(audio_data[i] + offset, fill_char, data_size);
+
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/samplefmt.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/samplefmt.h
new file mode 100644
index 000000000..8cd43ae85
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/samplefmt.h
@@ -0,0 +1,272 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_SAMPLEFMT_H
+#define AVUTIL_SAMPLEFMT_H
+
+#include <stdint.h>
+
+#include "avutil.h"
+#include "attributes.h"
+
+/**
+ * @addtogroup lavu_audio
+ * @{
+ *
+ * @defgroup lavu_sampfmts Audio sample formats
+ *
+ * Audio sample format enumeration and related convenience functions.
+ * @{
+ */
+
+/**
+ * Audio sample formats
+ *
+ * - The data described by the sample format is always in native-endian order.
+ *   Sample values can be expressed by native C types, hence the lack of a signed
+ *   24-bit sample format even though it is a common raw audio data format.
+ *
+ * - The floating-point formats are based on full volume being in the range
+ *   [-1.0, 1.0]. Any values outside this range are beyond full volume level.
+ *
+ * - The data layout as used in av_samples_fill_arrays() and elsewhere in FFmpeg
+ *   (such as AVFrame in libavcodec) is as follows:
+ *
+ * @par
+ * For planar sample formats, each audio channel is in a separate data plane,
+ * and linesize is the buffer size, in bytes, for a single plane. All data
+ * planes must be the same size. For packed sample formats, only the first data
+ * plane is used, and samples for each channel are interleaved. In this case,
+ * linesize is the buffer size, in bytes, for the 1 plane.
+ *
+ */
+enum AVSampleFormat {
+    AV_SAMPLE_FMT_NONE = -1,
+    AV_SAMPLE_FMT_U8,          ///< unsigned 8 bits
+    AV_SAMPLE_FMT_S16,         ///< signed 16 bits
+    AV_SAMPLE_FMT_S32,         ///< signed 32 bits
+    AV_SAMPLE_FMT_FLT,         ///< float
+    AV_SAMPLE_FMT_DBL,         ///< double
+
+    AV_SAMPLE_FMT_U8P,         ///< unsigned 8 bits, planar
+    AV_SAMPLE_FMT_S16P,        ///< signed 16 bits, planar
+    AV_SAMPLE_FMT_S32P,        ///< signed 32 bits, planar
+    AV_SAMPLE_FMT_FLTP,        ///< float, planar
+    AV_SAMPLE_FMT_DBLP,        ///< double, planar
+    AV_SAMPLE_FMT_S64,         ///< signed 64 bits
+    AV_SAMPLE_FMT_S64P,        ///< signed 64 bits, planar
+
+    AV_SAMPLE_FMT_NB           ///< Number of sample formats. DO NOT USE if linking dynamically
+};
+
+/**
+ * Return the name of sample_fmt, or NULL if sample_fmt is not
+ * recognized.
+ */
+const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt);
+
+/**
+ * Return a sample format corresponding to name, or AV_SAMPLE_FMT_NONE
+ * on error.
+ */
+enum AVSampleFormat av_get_sample_fmt(const char *name);
+
+/**
+ * Return the planar<->packed alternative form of the given sample format, or
+ * AV_SAMPLE_FMT_NONE on error. If the passed sample_fmt is already in the
+ * requested planar/packed format, the format returned is the same as the
+ * input.
+ */
+enum AVSampleFormat av_get_alt_sample_fmt(enum AVSampleFormat sample_fmt, int planar);
+
+/**
+ * Get the packed alternative form of the given sample format.
+ *
+ * If the passed sample_fmt is already in packed format, the format returned is
+ * the same as the input.
+ *
+ * @return  the packed alternative form of the given sample format or
+            AV_SAMPLE_FMT_NONE on error.
+ */
+enum AVSampleFormat av_get_packed_sample_fmt(enum AVSampleFormat sample_fmt);
+
+/**
+ * Get the planar alternative form of the given sample format.
+ *
+ * If the passed sample_fmt is already in planar format, the format returned is
+ * the same as the input.
+ *
+ * @return  the planar alternative form of the given sample format or
+            AV_SAMPLE_FMT_NONE on error.
+ */
+enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt);
+
+/**
+ * Generate a string corresponding to the sample format with
+ * sample_fmt, or a header if sample_fmt is negative.
+ *
+ * @param buf the buffer where to write the string
+ * @param buf_size the size of buf
+ * @param sample_fmt the number of the sample format to print the
+ * corresponding info string, or a negative value to print the
+ * corresponding header.
+ * @return the pointer to the filled buffer or NULL if sample_fmt is
+ * unknown or in case of other errors
+ */
+char *av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt);
+
+/**
+ * Return number of bytes per sample.
+ *
+ * @param sample_fmt the sample format
+ * @return number of bytes per sample or zero if unknown for the given
+ * sample format
+ */
+int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt);
+
+/**
+ * Check if the sample format is planar.
+ *
+ * @param sample_fmt the sample format to inspect
+ * @return 1 if the sample format is planar, 0 if it is interleaved
+ */
+int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt);
+
+/**
+ * Get the required buffer size for the given audio parameters.
+ *
+ * @param[out] linesize calculated linesize, may be NULL
+ * @param nb_channels   the number of channels
+ * @param nb_samples    the number of samples in a single channel
+ * @param sample_fmt    the sample format
+ * @param align         buffer size alignment (0 = default, 1 = no alignment)
+ * @return              required buffer size, or negative error code on failure
+ */
+int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
+                               enum AVSampleFormat sample_fmt, int align);
+
+/**
+ * @}
+ *
+ * @defgroup lavu_sampmanip Samples manipulation
+ *
+ * Functions that manipulate audio samples
+ * @{
+ */
+
+/**
+ * Fill plane data pointers and linesize for samples with sample
+ * format sample_fmt.
+ *
+ * The audio_data array is filled with the pointers to the samples data planes:
+ * for planar, set the start point of each channel's data within the buffer,
+ * for packed, set the start point of the entire buffer only.
+ *
+ * The value pointed to by linesize is set to the aligned size of each
+ * channel's data buffer for planar layout, or to the aligned size of the
+ * buffer for all channels for packed layout.
+ *
+ * The buffer in buf must be big enough to contain all the samples
+ * (use av_samples_get_buffer_size() to compute its minimum size),
+ * otherwise the audio_data pointers will point to invalid data.
+ *
+ * @see enum AVSampleFormat
+ * The documentation for AVSampleFormat describes the data layout.
+ *
+ * @param[out] audio_data  array to be filled with the pointer for each channel
+ * @param[out] linesize    calculated linesize, may be NULL
+ * @param buf              the pointer to a buffer containing the samples
+ * @param nb_channels      the number of channels
+ * @param nb_samples       the number of samples in a single channel
+ * @param sample_fmt       the sample format
+ * @param align            buffer size alignment (0 = default, 1 = no alignment)
+ * @return                 >=0 on success or a negative error code on failure
+ * @todo return minimum size in bytes required for the buffer in case
+ * of success at the next bump
+ */
+int av_samples_fill_arrays(uint8_t **audio_data, int *linesize,
+                           const uint8_t *buf,
+                           int nb_channels, int nb_samples,
+                           enum AVSampleFormat sample_fmt, int align);
+
+/**
+ * Allocate a samples buffer for nb_samples samples, and fill data pointers and
+ * linesize accordingly.
+ * The allocated samples buffer can be freed by using av_freep(&audio_data[0])
+ * Allocated data will be initialized to silence.
+ *
+ * @see enum AVSampleFormat
+ * The documentation for AVSampleFormat describes the data layout.
+ *
+ * @param[out] audio_data  array to be filled with the pointer for each channel
+ * @param[out] linesize    aligned size for audio buffer(s), may be NULL
+ * @param nb_channels      number of audio channels
+ * @param nb_samples       number of samples per channel
+ * @param align            buffer size alignment (0 = default, 1 = no alignment)
+ * @return                 >=0 on success or a negative error code on failure
+ * @todo return the size of the allocated buffer in case of success at the next bump
+ * @see av_samples_fill_arrays()
+ * @see av_samples_alloc_array_and_samples()
+ */
+int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels,
+                     int nb_samples, enum AVSampleFormat sample_fmt, int align);
+
+/**
+ * Allocate a data pointers array, samples buffer for nb_samples
+ * samples, and fill data pointers and linesize accordingly.
+ *
+ * This is the same as av_samples_alloc(), but also allocates the data
+ * pointers array.
+ *
+ * @see av_samples_alloc()
+ */
+int av_samples_alloc_array_and_samples(uint8_t ***audio_data, int *linesize, int nb_channels,
+                                       int nb_samples, enum AVSampleFormat sample_fmt, int align);
+
+/**
+ * Copy samples from src to dst.
+ *
+ * @param dst destination array of pointers to data planes
+ * @param src source array of pointers to data planes
+ * @param dst_offset offset in samples at which the data will be written to dst
+ * @param src_offset offset in samples at which the data will be read from src
+ * @param nb_samples number of samples to be copied
+ * @param nb_channels number of audio channels
+ * @param sample_fmt audio sample format
+ */
+int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset,
+                    int src_offset, int nb_samples, int nb_channels,
+                    enum AVSampleFormat sample_fmt);
+
+/**
+ * Fill an audio buffer with silence.
+ *
+ * @param audio_data  array of pointers to data planes
+ * @param offset      offset in samples at which to start filling
+ * @param nb_samples  number of samples to fill
+ * @param nb_channels number of audio channels
+ * @param sample_fmt  audio sample format
+ */
+int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples,
+                           int nb_channels, enum AVSampleFormat sample_fmt);
+
+/**
+ * @}
+ * @}
+ */
+#endif /* AVUTIL_SAMPLEFMT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/sha.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/sha.c
new file mode 100644
index 000000000..ef6fa4422
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/sha.c
@@ -0,0 +1,356 @@
+/*
+ * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (C) 2009 Konstantin Shishkov
+ * based on public domain SHA-1 code by Steve Reid <steve@edmweb.com>
+ * and on BSD-licensed SHA-2 code by Aaron D. Gifford
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <string.h>
+
+#include "attributes.h"
+#include "avutil.h"
+#include "bswap.h"
+#include "sha.h"
+#include "intreadwrite.h"
+#include "mem.h"
+
+/** hash context */
+typedef struct AVSHA {
+    uint8_t  digest_len;  ///< digest length in 32-bit words
+    uint64_t count;       ///< number of bytes in buffer
+    uint8_t  buffer[64];  ///< 512-bit buffer of input values used in hash updating
+    uint32_t state[8];    ///< current hash value
+    /** function used to update hash for 512-bit input block */
+    void     (*transform)(uint32_t *state, const uint8_t buffer[64]);
+} AVSHA;
+
+const int av_sha_size = sizeof(AVSHA);
+
+struct AVSHA *av_sha_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVSHA));
+}
+
+#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
+
+/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
+#define blk0(i) (block[i] = AV_RB32(buffer + 4 * (i)))
+#define blk(i)  (block[i] = rol(block[(i)-3] ^ block[(i)-8] ^ block[(i)-14] ^ block[(i)-16], 1))
+
+#define R0(v,w,x,y,z,i) z += (((w)&((x)^(y)))^(y))       + blk0(i) + 0x5A827999 + rol(v, 5); w = rol(w, 30);
+#define R1(v,w,x,y,z,i) z += (((w)&((x)^(y)))^(y))       + blk (i) + 0x5A827999 + rol(v, 5); w = rol(w, 30);
+#define R2(v,w,x,y,z,i) z += ( (w)^(x)       ^(y))       + blk (i) + 0x6ED9EBA1 + rol(v, 5); w = rol(w, 30);
+#define R3(v,w,x,y,z,i) z += ((((w)|(x))&(y))|((w)&(x))) + blk (i) + 0x8F1BBCDC + rol(v, 5); w = rol(w, 30);
+#define R4(v,w,x,y,z,i) z += ( (w)^(x)       ^(y))       + blk (i) + 0xCA62C1D6 + rol(v, 5); w = rol(w, 30);
+
+/* Hash a single 512-bit block. This is the core of the algorithm. */
+
+static void sha1_transform(uint32_t state[5], const uint8_t buffer[64])
+{
+    uint32_t block[80];
+    unsigned int i, a, b, c, d, e;
+
+    a = state[0];
+    b = state[1];
+    c = state[2];
+    d = state[3];
+    e = state[4];
+#if CONFIG_SMALL
+    for (i = 0; i < 80; i++) {
+        int t;
+        if (i < 16)
+            t = AV_RB32(buffer + 4 * i);
+        else
+            t = rol(block[i-3] ^ block[i-8] ^ block[i-14] ^ block[i-16], 1);
+        block[i] = t;
+        t += e + rol(a, 5);
+        if (i < 40) {
+            if (i < 20)
+                t += ((b&(c^d))^d)     + 0x5A827999;
+            else
+                t += ( b^c     ^d)     + 0x6ED9EBA1;
+        } else {
+            if (i < 60)
+                t += (((b|c)&d)|(b&c)) + 0x8F1BBCDC;
+            else
+                t += ( b^c     ^d)     + 0xCA62C1D6;
+        }
+        e = d;
+        d = c;
+        c = rol(b, 30);
+        b = a;
+        a = t;
+    }
+#else
+
+#define R1_0 \
+    R0(a, b, c, d, e, 0 + i); \
+    R0(e, a, b, c, d, 1 + i); \
+    R0(d, e, a, b, c, 2 + i); \
+    R0(c, d, e, a, b, 3 + i); \
+    R0(b, c, d, e, a, 4 + i); \
+    i += 5
+
+    i = 0;
+    R1_0; R1_0; R1_0;
+    R0(a, b, c, d, e, 15);
+    R1(e, a, b, c, d, 16);
+    R1(d, e, a, b, c, 17);
+    R1(c, d, e, a, b, 18);
+    R1(b, c, d, e, a, 19);
+
+#define R1_20 \
+    R2(a, b, c, d, e, 0 + i); \
+    R2(e, a, b, c, d, 1 + i); \
+    R2(d, e, a, b, c, 2 + i); \
+    R2(c, d, e, a, b, 3 + i); \
+    R2(b, c, d, e, a, 4 + i); \
+    i += 5
+
+    i = 20;
+    R1_20; R1_20; R1_20; R1_20;
+
+#define R1_40 \
+    R3(a, b, c, d, e, 0 + i); \
+    R3(e, a, b, c, d, 1 + i); \
+    R3(d, e, a, b, c, 2 + i); \
+    R3(c, d, e, a, b, 3 + i); \
+    R3(b, c, d, e, a, 4 + i); \
+    i += 5
+
+    R1_40; R1_40; R1_40; R1_40;
+
+#define R1_60 \
+    R4(a, b, c, d, e, 0 + i); \
+    R4(e, a, b, c, d, 1 + i); \
+    R4(d, e, a, b, c, 2 + i); \
+    R4(c, d, e, a, b, 3 + i); \
+    R4(b, c, d, e, a, 4 + i); \
+    i += 5
+
+    R1_60; R1_60; R1_60; R1_60;
+#endif
+    state[0] += a;
+    state[1] += b;
+    state[2] += c;
+    state[3] += d;
+    state[4] += e;
+}
+
+static const uint32_t K256[64] = {
+    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
+    0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
+    0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
+    0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
+    0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
+    0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
+    0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
+    0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
+    0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
+};
+
+
+#define Ch(x,y,z)   (((x) & ((y) ^ (z))) ^ (z))
+#define Maj(z,y,x)  ((((x) | (y)) & (z)) | ((x) & (y)))
+
+#define Sigma0_256(x)   (rol((x), 30) ^ rol((x), 19) ^ rol((x), 10))
+#define Sigma1_256(x)   (rol((x), 26) ^ rol((x), 21) ^ rol((x),  7))
+#define sigma0_256(x)   (rol((x), 25) ^ rol((x), 14) ^ ((x) >> 3))
+#define sigma1_256(x)   (rol((x), 15) ^ rol((x), 13) ^ ((x) >> 10))
+
+#undef blk
+#define blk(i)  (block[i] = block[i - 16] + sigma0_256(block[i - 15]) + \
+                            sigma1_256(block[i - 2]) + block[i - 7])
+
+#define ROUND256(a,b,c,d,e,f,g,h)   \
+    T1 += (h) + Sigma1_256(e) + Ch((e), (f), (g)) + K256[i]; \
+    (d) += T1; \
+    (h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \
+    i++
+
+#define ROUND256_0_TO_15(a,b,c,d,e,f,g,h)   \
+    T1 = blk0(i); \
+    ROUND256(a,b,c,d,e,f,g,h)
+
+#define ROUND256_16_TO_63(a,b,c,d,e,f,g,h)   \
+    T1 = blk(i); \
+    ROUND256(a,b,c,d,e,f,g,h)
+
+static void sha256_transform(uint32_t *state, const uint8_t buffer[64])
+{
+    unsigned int i, a, b, c, d, e, f, g, h;
+    uint32_t block[64];
+    uint32_t T1;
+
+    a = state[0];
+    b = state[1];
+    c = state[2];
+    d = state[3];
+    e = state[4];
+    f = state[5];
+    g = state[6];
+    h = state[7];
+#if CONFIG_SMALL
+    for (i = 0; i < 64; i++) {
+        uint32_t T2;
+        if (i < 16)
+            T1 = blk0(i);
+        else
+            T1 = blk(i);
+        T1 += h + Sigma1_256(e) + Ch(e, f, g) + K256[i];
+        T2 = Sigma0_256(a) + Maj(a, b, c);
+        h = g;
+        g = f;
+        f = e;
+        e = d + T1;
+        d = c;
+        c = b;
+        b = a;
+        a = T1 + T2;
+    }
+#else
+
+    i = 0;
+#define R256_0 \
+    ROUND256_0_TO_15(a, b, c, d, e, f, g, h); \
+    ROUND256_0_TO_15(h, a, b, c, d, e, f, g); \
+    ROUND256_0_TO_15(g, h, a, b, c, d, e, f); \
+    ROUND256_0_TO_15(f, g, h, a, b, c, d, e); \
+    ROUND256_0_TO_15(e, f, g, h, a, b, c, d); \
+    ROUND256_0_TO_15(d, e, f, g, h, a, b, c); \
+    ROUND256_0_TO_15(c, d, e, f, g, h, a, b); \
+    ROUND256_0_TO_15(b, c, d, e, f, g, h, a)
+
+    R256_0; R256_0;
+
+#define R256_16 \
+    ROUND256_16_TO_63(a, b, c, d, e, f, g, h); \
+    ROUND256_16_TO_63(h, a, b, c, d, e, f, g); \
+    ROUND256_16_TO_63(g, h, a, b, c, d, e, f); \
+    ROUND256_16_TO_63(f, g, h, a, b, c, d, e); \
+    ROUND256_16_TO_63(e, f, g, h, a, b, c, d); \
+    ROUND256_16_TO_63(d, e, f, g, h, a, b, c); \
+    ROUND256_16_TO_63(c, d, e, f, g, h, a, b); \
+    ROUND256_16_TO_63(b, c, d, e, f, g, h, a)
+
+    R256_16; R256_16; R256_16;
+    R256_16; R256_16; R256_16;
+#endif
+    state[0] += a;
+    state[1] += b;
+    state[2] += c;
+    state[3] += d;
+    state[4] += e;
+    state[5] += f;
+    state[6] += g;
+    state[7] += h;
+}
+
+
+av_cold int av_sha_init(AVSHA *ctx, int bits)
+{
+    ctx->digest_len = bits >> 5;
+    switch (bits) {
+    case 160: // SHA-1
+        ctx->state[0] = 0x67452301;
+        ctx->state[1] = 0xEFCDAB89;
+        ctx->state[2] = 0x98BADCFE;
+        ctx->state[3] = 0x10325476;
+        ctx->state[4] = 0xC3D2E1F0;
+        ctx->transform = sha1_transform;
+        break;
+    case 224: // SHA-224
+        ctx->state[0] = 0xC1059ED8;
+        ctx->state[1] = 0x367CD507;
+        ctx->state[2] = 0x3070DD17;
+        ctx->state[3] = 0xF70E5939;
+        ctx->state[4] = 0xFFC00B31;
+        ctx->state[5] = 0x68581511;
+        ctx->state[6] = 0x64F98FA7;
+        ctx->state[7] = 0xBEFA4FA4;
+        ctx->transform = sha256_transform;
+        break;
+    case 256: // SHA-256
+        ctx->state[0] = 0x6A09E667;
+        ctx->state[1] = 0xBB67AE85;
+        ctx->state[2] = 0x3C6EF372;
+        ctx->state[3] = 0xA54FF53A;
+        ctx->state[4] = 0x510E527F;
+        ctx->state[5] = 0x9B05688C;
+        ctx->state[6] = 0x1F83D9AB;
+        ctx->state[7] = 0x5BE0CD19;
+        ctx->transform = sha256_transform;
+        break;
+    default:
+        return AVERROR(EINVAL);
+    }
+    ctx->count = 0;
+    return 0;
+}
+
+#if FF_API_CRYPTO_SIZE_T
+void av_sha_update(struct AVSHA *ctx, const uint8_t *data, unsigned int len)
+#else
+void av_sha_update(struct AVSHA *ctx, const uint8_t *data, size_t len)
+#endif
+{
+    unsigned int i, j;
+
+    j = ctx->count & 63;
+    ctx->count += len;
+#if CONFIG_SMALL
+    for (i = 0; i < len; i++) {
+        ctx->buffer[j++] = data[i];
+        if (64 == j) {
+            ctx->transform(ctx->state, ctx->buffer);
+            j = 0;
+        }
+    }
+#else
+    if ((j + len) > 63) {
+        memcpy(&ctx->buffer[j], data, (i = 64 - j));
+        ctx->transform(ctx->state, ctx->buffer);
+        for (; i + 63 < len; i += 64)
+            ctx->transform(ctx->state, &data[i]);
+        j = 0;
+    } else
+        i = 0;
+    memcpy(&ctx->buffer[j], &data[i], len - i);
+#endif
+}
+
+void av_sha_final(AVSHA* ctx, uint8_t *digest)
+{
+    int i;
+    uint64_t finalcount = av_be2ne64(ctx->count << 3);
+
+    av_sha_update(ctx, "\200", 1);
+    while ((ctx->count & 63) != 56)
+        av_sha_update(ctx, "", 1);
+    av_sha_update(ctx, (uint8_t *)&finalcount, 8); /* Should cause a transform() */
+    for (i = 0; i < ctx->digest_len; i++)
+        AV_WB32(digest + i*4, ctx->state[i]);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/sha.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/sha.h
new file mode 100644
index 000000000..c0180e572
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/sha.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu_sha
+ * Public header for SHA-1 & SHA-256 hash function implementations.
+ */
+
+#ifndef AVUTIL_SHA_H
+#define AVUTIL_SHA_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "attributes.h"
+#include "version.h"
+
+/**
+ * @defgroup lavu_sha SHA
+ * @ingroup lavu_hash
+ * SHA-1 and SHA-256 (Secure Hash Algorithm) hash function implementations.
+ *
+ * This module supports the following SHA hash functions:
+ *
+ * - SHA-1: 160 bits
+ * - SHA-224: 224 bits, as a variant of SHA-2
+ * - SHA-256: 256 bits, as a variant of SHA-2
+ *
+ * @see For SHA-384, SHA-512, and variants thereof, see @ref lavu_sha512.
+ *
+ * @{
+ */
+
+extern const int av_sha_size;
+
+struct AVSHA;
+
+/**
+ * Allocate an AVSHA context.
+ */
+struct AVSHA *av_sha_alloc(void);
+
+/**
+ * Initialize SHA-1 or SHA-2 hashing.
+ *
+ * @param context pointer to the function context (of size av_sha_size)
+ * @param bits    number of bits in digest (SHA-1 - 160 bits, SHA-2 224 or 256 bits)
+ * @return        zero if initialization succeeded, -1 otherwise
+ */
+int av_sha_init(struct AVSHA* context, int bits);
+
+/**
+ * Update hash value.
+ *
+ * @param ctx     hash function context
+ * @param data    input data to update hash with
+ * @param len     input data length
+ */
+#if FF_API_CRYPTO_SIZE_T
+void av_sha_update(struct AVSHA *ctx, const uint8_t *data, unsigned int len);
+#else
+void av_sha_update(struct AVSHA *ctx, const uint8_t *data, size_t len);
+#endif
+
+/**
+ * Finish hashing and output digest value.
+ *
+ * @param context hash function context
+ * @param digest  buffer where output digest value is stored
+ */
+void av_sha_final(struct AVSHA* context, uint8_t *digest);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_SHA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/sha512.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/sha512.c
new file mode 100644
index 000000000..6d092a7c5
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/sha512.c
@@ -0,0 +1,287 @@
+/*
+ * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (C) 2009 Konstantin Shishkov
+ * Copyright (C) 2013 James Almer
+ * based on BSD-licensed SHA-2 code by Aaron D. Gifford
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <string.h>
+
+#include "attributes.h"
+#include "avutil.h"
+#include "bswap.h"
+#include "sha512.h"
+#include "intreadwrite.h"
+#include "mem.h"
+
+/** hash context */
+typedef struct AVSHA512 {
+    uint8_t  digest_len;  ///< digest length in 64-bit words
+    uint64_t count;       ///< number of bytes in buffer
+    uint8_t  buffer[128]; ///< 1024-bit buffer of input values used in hash updating
+    uint64_t state[8];    ///< current hash value
+} AVSHA512;
+
+const int av_sha512_size = sizeof(AVSHA512);
+
+struct AVSHA512 *av_sha512_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVSHA512));
+}
+
+static const uint64_t K512[80] = {
+    UINT64_C(0x428a2f98d728ae22),  UINT64_C(0x7137449123ef65cd),
+    UINT64_C(0xb5c0fbcfec4d3b2f),  UINT64_C(0xe9b5dba58189dbbc),
+    UINT64_C(0x3956c25bf348b538),  UINT64_C(0x59f111f1b605d019),
+    UINT64_C(0x923f82a4af194f9b),  UINT64_C(0xab1c5ed5da6d8118),
+    UINT64_C(0xd807aa98a3030242),  UINT64_C(0x12835b0145706fbe),
+    UINT64_C(0x243185be4ee4b28c),  UINT64_C(0x550c7dc3d5ffb4e2),
+    UINT64_C(0x72be5d74f27b896f),  UINT64_C(0x80deb1fe3b1696b1),
+    UINT64_C(0x9bdc06a725c71235),  UINT64_C(0xc19bf174cf692694),
+    UINT64_C(0xe49b69c19ef14ad2),  UINT64_C(0xefbe4786384f25e3),
+    UINT64_C(0x0fc19dc68b8cd5b5),  UINT64_C(0x240ca1cc77ac9c65),
+    UINT64_C(0x2de92c6f592b0275),  UINT64_C(0x4a7484aa6ea6e483),
+    UINT64_C(0x5cb0a9dcbd41fbd4),  UINT64_C(0x76f988da831153b5),
+    UINT64_C(0x983e5152ee66dfab),  UINT64_C(0xa831c66d2db43210),
+    UINT64_C(0xb00327c898fb213f),  UINT64_C(0xbf597fc7beef0ee4),
+    UINT64_C(0xc6e00bf33da88fc2),  UINT64_C(0xd5a79147930aa725),
+    UINT64_C(0x06ca6351e003826f),  UINT64_C(0x142929670a0e6e70),
+    UINT64_C(0x27b70a8546d22ffc),  UINT64_C(0x2e1b21385c26c926),
+    UINT64_C(0x4d2c6dfc5ac42aed),  UINT64_C(0x53380d139d95b3df),
+    UINT64_C(0x650a73548baf63de),  UINT64_C(0x766a0abb3c77b2a8),
+    UINT64_C(0x81c2c92e47edaee6),  UINT64_C(0x92722c851482353b),
+    UINT64_C(0xa2bfe8a14cf10364),  UINT64_C(0xa81a664bbc423001),
+    UINT64_C(0xc24b8b70d0f89791),  UINT64_C(0xc76c51a30654be30),
+    UINT64_C(0xd192e819d6ef5218),  UINT64_C(0xd69906245565a910),
+    UINT64_C(0xf40e35855771202a),  UINT64_C(0x106aa07032bbd1b8),
+    UINT64_C(0x19a4c116b8d2d0c8),  UINT64_C(0x1e376c085141ab53),
+    UINT64_C(0x2748774cdf8eeb99),  UINT64_C(0x34b0bcb5e19b48a8),
+    UINT64_C(0x391c0cb3c5c95a63),  UINT64_C(0x4ed8aa4ae3418acb),
+    UINT64_C(0x5b9cca4f7763e373),  UINT64_C(0x682e6ff3d6b2b8a3),
+    UINT64_C(0x748f82ee5defb2fc),  UINT64_C(0x78a5636f43172f60),
+    UINT64_C(0x84c87814a1f0ab72),  UINT64_C(0x8cc702081a6439ec),
+    UINT64_C(0x90befffa23631e28),  UINT64_C(0xa4506cebde82bde9),
+    UINT64_C(0xbef9a3f7b2c67915),  UINT64_C(0xc67178f2e372532b),
+    UINT64_C(0xca273eceea26619c),  UINT64_C(0xd186b8c721c0c207),
+    UINT64_C(0xeada7dd6cde0eb1e),  UINT64_C(0xf57d4f7fee6ed178),
+    UINT64_C(0x06f067aa72176fba),  UINT64_C(0x0a637dc5a2c898a6),
+    UINT64_C(0x113f9804bef90dae),  UINT64_C(0x1b710b35131c471b),
+    UINT64_C(0x28db77f523047d84),  UINT64_C(0x32caab7b40c72493),
+    UINT64_C(0x3c9ebe0a15c9bebc),  UINT64_C(0x431d67c49c100d4c),
+    UINT64_C(0x4cc5d4becb3e42b6),  UINT64_C(0x597f299cfc657e2a),
+    UINT64_C(0x5fcb6fab3ad6faec),  UINT64_C(0x6c44198c4a475817),
+};
+
+#define ror(value, bits) (((value) >> (bits)) | ((value) << (64 - (bits))))
+
+#define Ch(x,y,z)   (((x) & ((y) ^ (z))) ^ (z))
+#define Maj(z,y,x)  ((((x) | (y)) & (z)) | ((x) & (y)))
+
+#define Sigma0_512(x)   (ror((x), 28) ^ ror((x), 34) ^ ror((x), 39))
+#define Sigma1_512(x)   (ror((x), 14) ^ ror((x), 18) ^ ror((x), 41))
+#define sigma0_512(x)   (ror((x),  1) ^ ror((x),  8) ^ ((x) >> 7))
+#define sigma1_512(x)   (ror((x), 19) ^ ror((x), 61) ^ ((x) >> 6))
+
+#define blk0(i) (block[i] = AV_RB64(buffer + 8 * (i)))
+#define blk(i)  (block[i] = block[i - 16] + sigma0_512(block[i - 15]) + \
+                            sigma1_512(block[i - 2]) + block[i - 7])
+
+#define ROUND512(a,b,c,d,e,f,g,h)   \
+    T1 += (h) + Sigma1_512(e) + Ch((e), (f), (g)) + K512[i]; \
+    (d) += T1; \
+    (h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)); \
+    i++
+
+#define ROUND512_0_TO_15(a,b,c,d,e,f,g,h)   \
+    T1 = blk0(i); \
+    ROUND512(a,b,c,d,e,f,g,h)
+
+#define ROUND512_16_TO_80(a,b,c,d,e,f,g,h)   \
+    T1 = blk(i); \
+    ROUND512(a,b,c,d,e,f,g,h)
+
+static void sha512_transform(uint64_t *state, const uint8_t buffer[128])
+{
+    uint64_t a, b, c, d, e, f, g, h;
+    uint64_t block[80];
+    uint64_t T1;
+    int i;
+
+    a = state[0];
+    b = state[1];
+    c = state[2];
+    d = state[3];
+    e = state[4];
+    f = state[5];
+    g = state[6];
+    h = state[7];
+#if CONFIG_SMALL
+    for (i = 0; i < 80; i++) {
+        uint64_t T2;
+        if (i < 16)
+            T1 = blk0(i);
+        else
+            T1 = blk(i);
+        T1 += h + Sigma1_512(e) + Ch(e, f, g) + K512[i];
+        T2 = Sigma0_512(a) + Maj(a, b, c);
+        h = g;
+        g = f;
+        f = e;
+        e = d + T1;
+        d = c;
+        c = b;
+        b = a;
+        a = T1 + T2;
+    }
+#else
+
+#define R512_0 \
+    ROUND512_0_TO_15(a, b, c, d, e, f, g, h); \
+    ROUND512_0_TO_15(h, a, b, c, d, e, f, g); \
+    ROUND512_0_TO_15(g, h, a, b, c, d, e, f); \
+    ROUND512_0_TO_15(f, g, h, a, b, c, d, e); \
+    ROUND512_0_TO_15(e, f, g, h, a, b, c, d); \
+    ROUND512_0_TO_15(d, e, f, g, h, a, b, c); \
+    ROUND512_0_TO_15(c, d, e, f, g, h, a, b); \
+    ROUND512_0_TO_15(b, c, d, e, f, g, h, a)
+
+    i = 0;
+    R512_0; R512_0;
+
+#define R512_16 \
+    ROUND512_16_TO_80(a, b, c, d, e, f, g, h); \
+    ROUND512_16_TO_80(h, a, b, c, d, e, f, g); \
+    ROUND512_16_TO_80(g, h, a, b, c, d, e, f); \
+    ROUND512_16_TO_80(f, g, h, a, b, c, d, e); \
+    ROUND512_16_TO_80(e, f, g, h, a, b, c, d); \
+    ROUND512_16_TO_80(d, e, f, g, h, a, b, c); \
+    ROUND512_16_TO_80(c, d, e, f, g, h, a, b); \
+    ROUND512_16_TO_80(b, c, d, e, f, g, h, a)
+
+    R512_16; R512_16; R512_16; R512_16;
+    R512_16; R512_16; R512_16; R512_16;
+#endif
+    state[0] += a;
+    state[1] += b;
+    state[2] += c;
+    state[3] += d;
+    state[4] += e;
+    state[5] += f;
+    state[6] += g;
+    state[7] += h;
+}
+
+
+av_cold int av_sha512_init(AVSHA512 *ctx, int bits)
+{
+    ctx->digest_len = bits >> 6;
+    switch (bits) {
+    case 224: // SHA-512/224
+        ctx->state[0] = UINT64_C(0x8C3D37C819544DA2);
+        ctx->state[1] = UINT64_C(0x73E1996689DCD4D6);
+        ctx->state[2] = UINT64_C(0x1DFAB7AE32FF9C82);
+        ctx->state[3] = UINT64_C(0x679DD514582F9FCF);
+        ctx->state[4] = UINT64_C(0x0F6D2B697BD44DA8);
+        ctx->state[5] = UINT64_C(0x77E36F7304C48942);
+        ctx->state[6] = UINT64_C(0x3F9D85A86A1D36C8);
+        ctx->state[7] = UINT64_C(0x1112E6AD91D692A1);
+        break;
+    case 256: // SHA-512/256
+        ctx->state[0] = UINT64_C(0x22312194FC2BF72C);
+        ctx->state[1] = UINT64_C(0x9F555FA3C84C64C2);
+        ctx->state[2] = UINT64_C(0x2393B86B6F53B151);
+        ctx->state[3] = UINT64_C(0x963877195940EABD);
+        ctx->state[4] = UINT64_C(0x96283EE2A88EFFE3);
+        ctx->state[5] = UINT64_C(0xBE5E1E2553863992);
+        ctx->state[6] = UINT64_C(0x2B0199FC2C85B8AA);
+        ctx->state[7] = UINT64_C(0x0EB72DDC81C52CA2);
+        break;
+    case 384: // SHA-384
+        ctx->state[0] = UINT64_C(0xCBBB9D5DC1059ED8);
+        ctx->state[1] = UINT64_C(0x629A292A367CD507);
+        ctx->state[2] = UINT64_C(0x9159015A3070DD17);
+        ctx->state[3] = UINT64_C(0x152FECD8F70E5939);
+        ctx->state[4] = UINT64_C(0x67332667FFC00B31);
+        ctx->state[5] = UINT64_C(0x8EB44A8768581511);
+        ctx->state[6] = UINT64_C(0xDB0C2E0D64F98FA7);
+        ctx->state[7] = UINT64_C(0x47B5481DBEFA4FA4);
+        break;
+    case 512: // SHA-512
+        ctx->state[0] = UINT64_C(0x6A09E667F3BCC908);
+        ctx->state[1] = UINT64_C(0xBB67AE8584CAA73B);
+        ctx->state[2] = UINT64_C(0x3C6EF372FE94F82B);
+        ctx->state[3] = UINT64_C(0xA54FF53A5F1D36F1);
+        ctx->state[4] = UINT64_C(0x510E527FADE682D1);
+        ctx->state[5] = UINT64_C(0x9B05688C2B3E6C1F);
+        ctx->state[6] = UINT64_C(0x1F83D9ABFB41BD6B);
+        ctx->state[7] = UINT64_C(0x5BE0CD19137E2179);
+        break;
+    default:
+        return AVERROR(EINVAL);
+    }
+    ctx->count = 0;
+    return 0;
+}
+
+#if FF_API_CRYPTO_SIZE_T
+void av_sha512_update(AVSHA512* ctx, const uint8_t* data, unsigned int len)
+#else
+void av_sha512_update(AVSHA512* ctx, const uint8_t* data, size_t len)
+#endif
+{
+    unsigned int i, j;
+
+    j = ctx->count & 127;
+    ctx->count += len;
+#if CONFIG_SMALL
+    for (i = 0; i < len; i++) {
+        ctx->buffer[j++] = data[i];
+        if (128 == j) {
+            sha512_transform(ctx->state, ctx->buffer);
+            j = 0;
+        }
+    }
+#else
+    if ((j + len) > 127) {
+        memcpy(&ctx->buffer[j], data, (i = 128 - j));
+        sha512_transform(ctx->state, ctx->buffer);
+        for (; i + 127 < len; i += 128)
+            sha512_transform(ctx->state, &data[i]);
+        j = 0;
+    } else
+        i = 0;
+    memcpy(&ctx->buffer[j], &data[i], len - i);
+#endif
+}
+
+void av_sha512_final(AVSHA512* ctx, uint8_t *digest)
+{
+    uint64_t i = 0;
+    uint64_t finalcount = av_be2ne64(ctx->count << 3);
+
+    av_sha512_update(ctx, "\200", 1);
+    while ((ctx->count & 127) != 112)
+        av_sha512_update(ctx, "", 1);
+    av_sha512_update(ctx, (uint8_t *)&i, 8);
+    av_sha512_update(ctx, (uint8_t *)&finalcount, 8); /* Should cause a transform() */
+    for (i = 0; i < ctx->digest_len; i++)
+        AV_WB64(digest + i*8, ctx->state[i]);
+    if (ctx->digest_len & 1) /* SHA512/224 is 28 bytes, and is not divisible by 8. */
+        AV_WB32(digest + i*8, ctx->state[i] >> 32);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/sha512.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/sha512.h
new file mode 100644
index 000000000..bef714b41
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/sha512.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (C) 2013 James Almer <jamrial@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu_sha512
+ * Public header for SHA-512 implementation.
+ */
+
+#ifndef AVUTIL_SHA512_H
+#define AVUTIL_SHA512_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "attributes.h"
+#include "version.h"
+
+/**
+ * @defgroup lavu_sha512 SHA-512
+ * @ingroup lavu_hash
+ * SHA-512 (Secure Hash Algorithm) hash function implementations.
+ *
+ * This module supports the following SHA-2 hash functions:
+ *
+ * - SHA-512/224: 224 bits
+ * - SHA-512/256: 256 bits
+ * - SHA-384: 384 bits
+ * - SHA-512: 512 bits
+ *
+ * @see For SHA-1, SHA-256, and variants thereof, see @ref lavu_sha.
+ *
+ * @{
+ */
+
+extern const int av_sha512_size;
+
+struct AVSHA512;
+
+/**
+ * Allocate an AVSHA512 context.
+ */
+struct AVSHA512 *av_sha512_alloc(void);
+
+/**
+ * Initialize SHA-2 512 hashing.
+ *
+ * @param context pointer to the function context (of size av_sha512_size)
+ * @param bits    number of bits in digest (224, 256, 384 or 512 bits)
+ * @return        zero if initialization succeeded, -1 otherwise
+ */
+int av_sha512_init(struct AVSHA512* context, int bits);
+
+/**
+ * Update hash value.
+ *
+ * @param context hash function context
+ * @param data    input data to update hash with
+ * @param len     input data length
+ */
+#if FF_API_CRYPTO_SIZE_T
+void av_sha512_update(struct AVSHA512* context, const uint8_t* data, unsigned int len);
+#else
+void av_sha512_update(struct AVSHA512* context, const uint8_t* data, size_t len);
+#endif
+
+/**
+ * Finish hashing and output digest value.
+ *
+ * @param context hash function context
+ * @param digest  buffer where output digest value is stored
+ */
+void av_sha512_final(struct AVSHA512* context, uint8_t *digest);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_SHA512_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/slicethread.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/slicethread.c
new file mode 100644
index 000000000..dfbe551ef
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/slicethread.c
@@ -0,0 +1,255 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdatomic.h>
+#include "slicethread.h"
+#include "mem.h"
+#include "thread.h"
+#include "avassert.h"
+
+#if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
+
+typedef struct WorkerContext {
+    AVSliceThread   *ctx;
+    pthread_mutex_t mutex;
+    pthread_cond_t  cond;
+    pthread_t       thread;
+    int             done;
+} WorkerContext;
+
+struct AVSliceThread {
+    WorkerContext   *workers;
+    int             nb_threads;
+    int             nb_active_threads;
+    int             nb_jobs;
+
+    atomic_uint     first_job;
+    atomic_uint     current_job;
+    pthread_mutex_t done_mutex;
+    pthread_cond_t  done_cond;
+    int             done;
+    int             finished;
+
+    void            *priv;
+    void            (*worker_func)(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads);
+    void            (*main_func)(void *priv);
+};
+
+static int run_jobs(AVSliceThread *ctx)
+{
+    unsigned nb_jobs    = ctx->nb_jobs;
+    unsigned nb_active_threads = ctx->nb_active_threads;
+    unsigned first_job    = atomic_fetch_add_explicit(&ctx->first_job, 1, memory_order_acq_rel);
+    unsigned current_job  = first_job;
+
+    do {
+        ctx->worker_func(ctx->priv, current_job, first_job, nb_jobs, nb_active_threads);
+    } while ((current_job = atomic_fetch_add_explicit(&ctx->current_job, 1, memory_order_acq_rel)) < nb_jobs);
+
+    return current_job == nb_jobs + nb_active_threads - 1;
+}
+
+static void *attribute_align_arg thread_worker(void *v)
+{
+    WorkerContext *w = v;
+    AVSliceThread *ctx = w->ctx;
+
+    pthread_mutex_lock(&w->mutex);
+    pthread_cond_signal(&w->cond);
+
+    while (1) {
+        w->done = 1;
+        while (w->done)
+            pthread_cond_wait(&w->cond, &w->mutex);
+
+        if (ctx->finished) {
+            pthread_mutex_unlock(&w->mutex);
+            return NULL;
+        }
+
+        if (run_jobs(ctx)) {
+            pthread_mutex_lock(&ctx->done_mutex);
+            ctx->done = 1;
+            pthread_cond_signal(&ctx->done_cond);
+            pthread_mutex_unlock(&ctx->done_mutex);
+        }
+    }
+}
+
+int avpriv_slicethread_create(AVSliceThread **pctx, void *priv,
+                              void (*worker_func)(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads),
+                              void (*main_func)(void *priv),
+                              int nb_threads)
+{
+    AVSliceThread *ctx;
+    int nb_workers, i;
+
+    av_assert0(nb_threads >= 0);
+    if (!nb_threads) {
+        int nb_cpus = av_cpu_count();
+        if (nb_cpus > 1)
+            nb_threads = nb_cpus + 1;
+        else
+            nb_threads = 1;
+    }
+
+    nb_workers = nb_threads;
+    if (!main_func)
+        nb_workers--;
+
+    *pctx = ctx = av_mallocz(sizeof(*ctx));
+    if (!ctx)
+        return AVERROR(ENOMEM);
+
+    if (nb_workers && !(ctx->workers = av_calloc(nb_workers, sizeof(*ctx->workers)))) {
+        av_freep(pctx);
+        return AVERROR(ENOMEM);
+    }
+
+    ctx->priv        = priv;
+    ctx->worker_func = worker_func;
+    ctx->main_func   = main_func;
+    ctx->nb_threads  = nb_threads;
+    ctx->nb_active_threads = 0;
+    ctx->nb_jobs     = 0;
+    ctx->finished    = 0;
+
+    atomic_init(&ctx->first_job, 0);
+    atomic_init(&ctx->current_job, 0);
+    pthread_mutex_init(&ctx->done_mutex, NULL);
+    pthread_cond_init(&ctx->done_cond, NULL);
+    ctx->done        = 0;
+
+    for (i = 0; i < nb_workers; i++) {
+        WorkerContext *w = &ctx->workers[i];
+        int ret;
+        w->ctx = ctx;
+        pthread_mutex_init(&w->mutex, NULL);
+        pthread_cond_init(&w->cond, NULL);
+        pthread_mutex_lock(&w->mutex);
+        w->done = 0;
+
+        if (ret = pthread_create(&w->thread, NULL, thread_worker, w)) {
+            ctx->nb_threads = main_func ? i : i + 1;
+            pthread_mutex_unlock(&w->mutex);
+            pthread_cond_destroy(&w->cond);
+            pthread_mutex_destroy(&w->mutex);
+            avpriv_slicethread_free(pctx);
+            return AVERROR(ret);
+        }
+
+        while (!w->done)
+            pthread_cond_wait(&w->cond, &w->mutex);
+        pthread_mutex_unlock(&w->mutex);
+    }
+
+    return nb_threads;
+}
+
+void avpriv_slicethread_execute(AVSliceThread *ctx, int nb_jobs, int execute_main)
+{
+    int nb_workers, i, is_last = 0;
+
+    av_assert0(nb_jobs > 0);
+    ctx->nb_jobs           = nb_jobs;
+    ctx->nb_active_threads = FFMIN(nb_jobs, ctx->nb_threads);
+    atomic_store_explicit(&ctx->first_job, 0, memory_order_relaxed);
+    atomic_store_explicit(&ctx->current_job, ctx->nb_active_threads, memory_order_relaxed);
+    nb_workers             = ctx->nb_active_threads;
+    if (!ctx->main_func || !execute_main)
+        nb_workers--;
+
+    for (i = 0; i < nb_workers; i++) {
+        WorkerContext *w = &ctx->workers[i];
+        pthread_mutex_lock(&w->mutex);
+        w->done = 0;
+        pthread_cond_signal(&w->cond);
+        pthread_mutex_unlock(&w->mutex);
+    }
+
+    if (ctx->main_func && execute_main)
+        ctx->main_func(ctx->priv);
+    else
+        is_last = run_jobs(ctx);
+
+    if (!is_last) {
+        pthread_mutex_lock(&ctx->done_mutex);
+        while (!ctx->done)
+            pthread_cond_wait(&ctx->done_cond, &ctx->done_mutex);
+        ctx->done = 0;
+        pthread_mutex_unlock(&ctx->done_mutex);
+    }
+}
+
+void avpriv_slicethread_free(AVSliceThread **pctx)
+{
+    AVSliceThread *ctx;
+    int nb_workers, i;
+
+    if (!pctx || !*pctx)
+        return;
+
+    ctx = *pctx;
+    nb_workers = ctx->nb_threads;
+    if (!ctx->main_func)
+        nb_workers--;
+
+    ctx->finished = 1;
+    for (i = 0; i < nb_workers; i++) {
+        WorkerContext *w = &ctx->workers[i];
+        pthread_mutex_lock(&w->mutex);
+        w->done = 0;
+        pthread_cond_signal(&w->cond);
+        pthread_mutex_unlock(&w->mutex);
+    }
+
+    for (i = 0; i < nb_workers; i++) {
+        WorkerContext *w = &ctx->workers[i];
+        pthread_join(w->thread, NULL);
+        pthread_cond_destroy(&w->cond);
+        pthread_mutex_destroy(&w->mutex);
+    }
+
+    pthread_cond_destroy(&ctx->done_cond);
+    pthread_mutex_destroy(&ctx->done_mutex);
+    av_freep(&ctx->workers);
+    av_freep(pctx);
+}
+
+#else /* HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS32THREADS */
+
+int avpriv_slicethread_create(AVSliceThread **pctx, void *priv,
+                              void (*worker_func)(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads),
+                              void (*main_func)(void *priv),
+                              int nb_threads)
+{
+    *pctx = NULL;
+    return AVERROR(EINVAL);
+}
+
+void avpriv_slicethread_execute(AVSliceThread *ctx, int nb_jobs, int execute_main)
+{
+    av_assert0(0);
+}
+
+void avpriv_slicethread_free(AVSliceThread **pctx)
+{
+    av_assert0(!pctx || !*pctx);
+}
+
+#endif /* HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS32THREADS */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/slicethread.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/slicethread.h
new file mode 100644
index 000000000..f6f6f302c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/slicethread.h
@@ -0,0 +1,52 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_SLICETHREAD_H
+#define AVUTIL_SLICETHREAD_H
+
+typedef struct AVSliceThread AVSliceThread;
+
+/**
+ * Create slice threading context.
+ * @param pctx slice threading context returned here
+ * @param priv private pointer to be passed to callback function
+ * @param worker_func callback function to be executed
+ * @param main_func special callback function, called from main thread, may be NULL
+ * @param nb_threads number of threads, 0 for automatic, must be >= 0
+ * @return return number of threads or negative AVERROR on failure
+ */
+int avpriv_slicethread_create(AVSliceThread **pctx, void *priv,
+                              void (*worker_func)(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads),
+                              void (*main_func)(void *priv),
+                              int nb_threads);
+
+/**
+ * Execute slice threading.
+ * @param ctx slice threading context
+ * @param nb_jobs number of jobs, must be > 0
+ * @param execute_main also execute main_func
+ */
+void avpriv_slicethread_execute(AVSliceThread *ctx, int nb_jobs, int execute_main);
+
+/**
+ * Destroy slice threading context.
+ * @param pctx pointer to context
+ */
+void avpriv_slicethread_free(AVSliceThread **pctx);
+
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/softfloat.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/softfloat.h
new file mode 100644
index 000000000..a651406f7
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/softfloat.h
@@ -0,0 +1,289 @@
+/*
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_SOFTFLOAT_H
+#define AVUTIL_SOFTFLOAT_H
+
+#include <stdint.h>
+#include "common.h"
+
+#include "avassert.h"
+#include "softfloat_tables.h"
+
+#define MIN_EXP -149
+#define MAX_EXP  126
+#define ONE_BITS 29
+
+typedef struct SoftFloat{
+    int32_t mant;
+    int32_t  exp;
+}SoftFloat;
+
+static const SoftFloat FLOAT_0          = {          0,   MIN_EXP};             ///< 0.0
+static const SoftFloat FLOAT_05         = { 0x20000000,   0};                   ///< 0.5
+static const SoftFloat FLOAT_1          = { 0x20000000,   1};                   ///< 1.0
+static const SoftFloat FLOAT_EPSILON    = { 0x29F16B12, -16};                   ///< A small value
+static const SoftFloat FLOAT_1584893192 = { 0x32B771ED,   1};                   ///< 1.584893192 (10^.2)
+static const SoftFloat FLOAT_100000     = { 0x30D40000,  17};                   ///< 100000
+static const SoftFloat FLOAT_0999999    = { 0x3FFFFBCE,   0};                   ///< 0.999999
+static const SoftFloat FLOAT_MIN        = { 0x20000000,   MIN_EXP};
+
+
+/**
+ * Convert a SoftFloat to a double precision float.
+ */
+static inline av_const double av_sf2double(SoftFloat v) {
+    v.exp -= ONE_BITS +1;
+    return ldexp(v.mant, v.exp);
+}
+
+static av_const SoftFloat av_normalize_sf(SoftFloat a){
+    if(a.mant){
+#if 1
+        while((a.mant + 0x1FFFFFFFU)<0x3FFFFFFFU){
+            a.mant += a.mant;
+            a.exp  -= 1;
+        }
+#else
+        int s=ONE_BITS - av_log2(FFABS(a.mant));
+        a.exp   -= s;
+        a.mant <<= s;
+#endif
+        if(a.exp < MIN_EXP){
+            a.exp = MIN_EXP;
+            a.mant= 0;
+        }
+    }else{
+        a.exp= MIN_EXP;
+    }
+    return a;
+}
+
+static inline av_const SoftFloat av_normalize1_sf(SoftFloat a){
+#if 1
+    if((int32_t)(a.mant + 0x40000000U) <= 0){
+        a.exp++;
+        a.mant>>=1;
+    }
+    av_assert2(a.mant < 0x40000000 && a.mant > -0x40000000);
+    av_assert2(a.exp <= MAX_EXP);
+    return a;
+#elif 1
+    int t= a.mant + 0x40000000 < 0;
+    return (SoftFloat){ a.mant>>t, a.exp+t};
+#else
+    int t= (a.mant + 0x3FFFFFFFU)>>31;
+    return (SoftFloat){a.mant>>t, a.exp+t};
+#endif
+}
+
+/**
+ * @return Will not be more denormalized than a*b. So if either input is
+ *         normalized, then the output will not be worse then the other input.
+ *         If both are normalized, then the output will be normalized.
+ */
+static inline av_const SoftFloat av_mul_sf(SoftFloat a, SoftFloat b){
+    a.exp += b.exp;
+    av_assert2((int32_t)((a.mant * (int64_t)b.mant) >> ONE_BITS) == (a.mant * (int64_t)b.mant) >> ONE_BITS);
+    a.mant = (a.mant * (int64_t)b.mant) >> ONE_BITS;
+    a = av_normalize1_sf((SoftFloat){a.mant, a.exp - 1});
+    if (!a.mant || a.exp < MIN_EXP)
+        return FLOAT_0;
+    return a;
+}
+
+/**
+ * b has to be normalized and not zero.
+ * @return Will not be more denormalized than a.
+ */
+static inline av_const SoftFloat av_div_sf(SoftFloat a, SoftFloat b){
+    int64_t temp = (int64_t)a.mant * (1<<(ONE_BITS+1));
+    temp /= b.mant;
+    a.exp -= b.exp;
+    a.mant = temp;
+    while (a.mant != temp) {
+        temp /= 2;
+        a.exp--;
+        a.mant = temp;
+    }
+    a = av_normalize1_sf(a);
+    if (!a.mant || a.exp < MIN_EXP)
+        return FLOAT_0;
+    return a;
+}
+
+/**
+ * Compares two SoftFloats.
+ * @returns < 0 if the first is less
+ *          > 0 if the first is greater
+ *            0 if they are equal
+ */
+static inline av_const int av_cmp_sf(SoftFloat a, SoftFloat b){
+    int t= a.exp - b.exp;
+    if      (t <-31) return                  -  b.mant      ;
+    else if (t <  0) return (a.mant >> (-t)) -  b.mant      ;
+    else if (t < 32) return  a.mant          - (b.mant >> t);
+    else             return  a.mant                         ;
+}
+
+/**
+ * Compares two SoftFloats.
+ * @returns 1 if a is greater than b, 0 otherwise
+ */
+static inline av_const int av_gt_sf(SoftFloat a, SoftFloat b)
+{
+    int t= a.exp - b.exp;
+    if      (t <-31) return 0                >  b.mant      ;
+    else if (t <  0) return (a.mant >> (-t)) >  b.mant      ;
+    else if (t < 32) return  a.mant          > (b.mant >> t);
+    else             return  a.mant          >  0           ;
+}
+
+/**
+ * @returns the sum of 2 SoftFloats.
+ */
+static inline av_const SoftFloat av_add_sf(SoftFloat a, SoftFloat b){
+    int t= a.exp - b.exp;
+    if      (t <-31) return b;
+    else if (t <  0) return av_normalize_sf(av_normalize1_sf((SoftFloat){ b.mant + (a.mant >> (-t)), b.exp}));
+    else if (t < 32) return av_normalize_sf(av_normalize1_sf((SoftFloat){ a.mant + (b.mant >>   t ), a.exp}));
+    else             return a;
+}
+
+/**
+ * @returns the difference of 2 SoftFloats.
+ */
+static inline av_const SoftFloat av_sub_sf(SoftFloat a, SoftFloat b){
+    return av_add_sf(a, (SoftFloat){ -b.mant, b.exp});
+}
+
+//FIXME log, exp, pow
+
+/**
+ * Converts a mantisse and exponent to a SoftFloat.
+ * This converts a fixed point value v with frac_bits fractional bits to a
+ * SoftFloat.
+ * @returns a SoftFloat with value v * 2^-frac_bits
+ */
+static inline av_const SoftFloat av_int2sf(int v, int frac_bits){
+    int exp_offset = 0;
+    if(v <= INT_MIN + 1){
+        exp_offset = 1;
+        v>>=1;
+    }
+    return av_normalize_sf(av_normalize1_sf((SoftFloat){v, ONE_BITS + 1 - frac_bits + exp_offset}));
+}
+
+/**
+ * Converts a SoftFloat to an integer.
+ * Rounding is to -inf.
+ */
+static inline av_const int av_sf2int(SoftFloat v, int frac_bits){
+    v.exp += frac_bits - (ONE_BITS + 1);
+    if(v.exp >= 0) return v.mant <<  v.exp ;
+    else           return v.mant >>(-v.exp);
+}
+
+/**
+ * Rounding-to-nearest used.
+ */
+static av_always_inline SoftFloat av_sqrt_sf(SoftFloat val)
+{
+    int tabIndex, rem;
+
+    if (val.mant == 0)
+        val.exp = MIN_EXP;
+    else if (val.mant < 0)
+        abort();
+    else
+    {
+        tabIndex = (val.mant - 0x20000000) >> 20;
+
+        rem = val.mant & 0xFFFFF;
+        val.mant  = (int)(((int64_t)av_sqrttbl_sf[tabIndex] * (0x100000 - rem) +
+                           (int64_t)av_sqrttbl_sf[tabIndex + 1] * rem +
+                           0x80000) >> 20);
+        val.mant = (int)(((int64_t)av_sqr_exp_multbl_sf[val.exp & 1] * val.mant +
+                          0x10000000) >> 29);
+
+        if (val.mant < 0x40000000)
+            val.exp -= 2;
+        else
+            val.mant >>= 1;
+
+        val.exp = (val.exp >> 1) + 1;
+    }
+
+    return val;
+}
+
+/**
+ * Rounding-to-nearest used.
+ */
+static av_unused void av_sincos_sf(int a, int *s, int *c)
+{
+    int idx, sign;
+    int sv, cv;
+    int st, ct;
+
+    idx = a >> 26;
+    sign = (int32_t)((unsigned)idx << 27) >> 31;
+    cv = av_costbl_1_sf[idx & 0xf];
+    cv = (cv ^ sign) - sign;
+
+    idx -= 8;
+    sign = (int32_t)((unsigned)idx << 27) >> 31;
+    sv = av_costbl_1_sf[idx & 0xf];
+    sv = (sv ^ sign) - sign;
+
+    idx = a >> 21;
+    ct = av_costbl_2_sf[idx & 0x1f];
+    st = av_sintbl_2_sf[idx & 0x1f];
+
+    idx = (int)(((int64_t)cv * ct - (int64_t)sv * st + 0x20000000) >> 30);
+
+    sv = (int)(((int64_t)cv * st + (int64_t)sv * ct + 0x20000000) >> 30);
+
+    cv = idx;
+
+    idx = a >> 16;
+    ct = av_costbl_3_sf[idx & 0x1f];
+    st = av_sintbl_3_sf[idx & 0x1f];
+
+    idx = (int)(((int64_t)cv * ct - (int64_t)sv * st + 0x20000000) >> 30);
+
+    sv = (int)(((int64_t)cv * st + (int64_t)sv * ct + 0x20000000) >> 30);
+    cv = idx;
+
+    idx = a >> 11;
+
+    ct = (int)(((int64_t)av_costbl_4_sf[idx & 0x1f] * (0x800 - (a & 0x7ff)) +
+                (int64_t)av_costbl_4_sf[(idx & 0x1f)+1]*(a & 0x7ff) +
+                0x400) >> 11);
+    st = (int)(((int64_t)av_sintbl_4_sf[idx & 0x1f] * (0x800 - (a & 0x7ff)) +
+                (int64_t)av_sintbl_4_sf[(idx & 0x1f) + 1] * (a & 0x7ff) +
+                0x400) >> 11);
+
+    *c = (int)(((int64_t)cv * ct + (int64_t)sv * st + 0x20000000) >> 30);
+
+    *s = (int)(((int64_t)cv * st + (int64_t)sv * ct + 0x20000000) >> 30);
+}
+
+#endif /* AVUTIL_SOFTFLOAT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/softfloat_ieee754.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/softfloat_ieee754.h
new file mode 100644
index 000000000..3398aa18b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/softfloat_ieee754.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2016 Umair Khan <omerjerk@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_SOFTFLOAT_IEEE754_H
+#define AVUTIL_SOFTFLOAT_IEEE754_H
+
+#include <stdint.h>
+
+#define EXP_BIAS 127
+#define MANT_BITS 23
+
+typedef struct SoftFloat_IEEE754 {
+    int32_t sign;
+    uint64_t mant;
+    int32_t  exp;
+} SoftFloat_IEEE754;
+
+static const SoftFloat_IEEE754 FLOAT_0 = {0, 0, -126};
+static const SoftFloat_IEEE754 FLOAT_1 = {0, 0,    0};
+
+/** Normalize the softfloat as defined by IEEE 754 single-recision floating
+ *  point specification
+ */
+static inline SoftFloat_IEEE754 av_normalize_sf_ieee754(SoftFloat_IEEE754 sf) {
+    while( sf.mant >= 0x1000000UL ) {
+        sf.exp++;
+        sf.mant >>= 1;
+    }
+    sf.mant &= 0x007fffffUL;
+    return sf;
+}
+
+/** Convert integer to softfloat.
+ *  @return softfloat with value n * 2^e
+ */
+static inline SoftFloat_IEEE754 av_int2sf_ieee754(int64_t n, int e) {
+    int sign = 0;
+
+    if (n < 0) {
+        sign = 1;
+        n    *= -1;
+    }
+    return av_normalize_sf_ieee754((SoftFloat_IEEE754) {sign, n << MANT_BITS, 0 + e});
+}
+
+/** Make a softfloat out of the bitstream. Assumes the bits are in the form as defined
+ *  by the IEEE 754 spec.
+ */
+static inline SoftFloat_IEEE754 av_bits2sf_ieee754(uint32_t n) {
+    return ((SoftFloat_IEEE754) { (n & 0x80000000UL) >> 31, (n & 0x7FFFFFUL), (int8_t)((n & 0x7F800000UL) >> 23)});
+}
+
+/** Convert the softfloat to integer
+ */
+static inline int av_sf2int_ieee754(SoftFloat_IEEE754 a) {
+    if(a.exp >= 0) return a.mant <<  a.exp ;
+    else           return a.mant >>(-a.exp);
+}
+
+/** Divide a by b. b should not be zero.
+ *  @return normalized result
+ */
+static inline SoftFloat_IEEE754 av_div_sf_ieee754(SoftFloat_IEEE754 a, SoftFloat_IEEE754 b) {
+    int32_t mant, exp, sign;
+    a    = av_normalize_sf_ieee754(a);
+    b    = av_normalize_sf_ieee754(b);
+    sign = a.sign ^ b.sign;
+    mant = ((((uint64_t) (a.mant | 0x00800000UL)) << MANT_BITS) / (b.mant| 0x00800000UL));
+    exp  = a.exp - b.exp;
+    return av_normalize_sf_ieee754((SoftFloat_IEEE754) {sign, mant, exp});
+}
+
+/** Multiply a with b
+ *  #return normalized result
+ */
+static inline SoftFloat_IEEE754 av_mul_sf_ieee754(SoftFloat_IEEE754 a, SoftFloat_IEEE754 b) {
+    int32_t sign, mant, exp;
+    a    = av_normalize_sf_ieee754(a);
+    b    = av_normalize_sf_ieee754(b);
+    sign = a.sign ^ b.sign;
+    mant = (((uint64_t)(a.mant|0x00800000UL) * (uint64_t)(b.mant|0x00800000UL))>>MANT_BITS);
+    exp  = a.exp + b.exp;
+    return av_normalize_sf_ieee754((SoftFloat_IEEE754) {sign, mant, exp});
+}
+
+/** Compare a with b strictly
+ *  @returns 1 if the a and b are equal, 0 otherwise.
+ */
+static inline int av_cmp_sf_ieee754(SoftFloat_IEEE754 a, SoftFloat_IEEE754 b) {
+    a = av_normalize_sf_ieee754(a);
+    b = av_normalize_sf_ieee754(b);
+    if (a.sign != b.sign) return 0;
+    if (a.mant != b.mant) return 0;
+    if (a.exp  != b.exp ) return 0;
+    return 1;
+}
+
+#endif /*AVUTIL_SOFTFLOAT_IEEE754_H*/
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/softfloat_tables.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/softfloat_tables.h
new file mode 100644
index 000000000..461f2b221
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/softfloat_tables.h
@@ -0,0 +1,262 @@
+/*
+ * Copyright (c) 2012
+ *      MIPS Technologies, Inc., California.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the MIPS Technologies, Inc., nor the names of is
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Author:  Stanislav Ocovaj (stanislav.ocovaj imgtec com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef AVUTIL_SOFTFLOAT_TABLES_H
+#define AVUTIL_SOFTFLOAT_TABLES_H
+
+#include <stdint.h>
+
+static const int32_t av_sqrttbl_sf[512+1] = { /*  sqrt(x), 0.5<=x<1 */
+   0x2d413ccd,0x2d4c8bb3,0x2d57d7c6,0x2d63210a,
+   0x2d6e677f,0x2d79ab2a,0x2d84ec0b,0x2d902a23,
+   0x2d9b6578,0x2da69e08,0x2db1d3d6,0x2dbd06e6,
+   0x2dc83738,0x2dd364ce,0x2dde8fac,0x2de9b7d2,
+   0x2df4dd43,0x2e000000,0x2e0b200c,0x2e163d68,
+   0x2e215816,0x2e2c701a,0x2e378573,0x2e429824,
+   0x2e4da830,0x2e58b598,0x2e63c05d,0x2e6ec883,
+   0x2e79ce0a,0x2e84d0f5,0x2e8fd144,0x2e9acefb,
+   0x2ea5ca1b,0x2eb0c2a7,0x2ebbb89e,0x2ec6ac04,
+   0x2ed19cda,0x2edc8b23,0x2ee776df,0x2ef26012,
+   0x2efd46bb,0x2f082add,0x2f130c7b,0x2f1deb95,
+   0x2f28c82e,0x2f33a246,0x2f3e79e1,0x2f494eff,
+   0x2f5421a3,0x2f5ef1ce,0x2f69bf81,0x2f748abe,
+   0x2f7f5388,0x2f8a19e0,0x2f94ddc7,0x2f9f9f3e,
+   0x2faa5e48,0x2fb51ae8,0x2fbfd51c,0x2fca8ce9,
+   0x2fd5424e,0x2fdff54e,0x2feaa5eb,0x2ff55426,
+   0x30000000,0x300aa97b,0x3015509a,0x301ff55c,
+   0x302a97c5,0x303537d5,0x303fd58e,0x304a70f2,
+   0x30550a01,0x305fa0be,0x306a352a,0x3074c747,
+   0x307f5716,0x3089e499,0x30946fd2,0x309ef8c0,
+   0x30a97f67,0x30b403c7,0x30be85e2,0x30c905bb,
+   0x30d38351,0x30ddfea6,0x30e877bc,0x30f2ee96,
+   0x30fd6332,0x3107d594,0x311245bc,0x311cb3ad,
+   0x31271f67,0x313188ec,0x313bf03d,0x3146555c,
+   0x3150b84a,0x315b1909,0x31657798,0x316fd3fc,
+   0x317a2e34,0x31848642,0x318edc28,0x31992fe5,
+   0x31a3817d,0x31add0f0,0x31b81e40,0x31c2696e,
+   0x31ccb27b,0x31d6f969,0x31e13e38,0x31eb80eb,
+   0x31f5c182,0x32000000,0x320a3c65,0x321476b1,
+   0x321eaee8,0x3228e50a,0x32331917,0x323d4b13,
+   0x32477afc,0x3251a8d6,0x325bd4a2,0x3265fe5f,
+   0x32702611,0x327a4bb8,0x32846f55,0x328e90e9,
+   0x3298b076,0x32a2cdfd,0x32ace97e,0x32b702fd,
+   0x32c11a79,0x32cb2ff3,0x32d5436d,0x32df54e9,
+   0x32e96466,0x32f371e8,0x32fd7d6d,0x330786f9,
+   0x33118e8c,0x331b9426,0x332597cb,0x332f9979,
+   0x33399933,0x334396fa,0x334d92cf,0x33578cb2,
+   0x336184a6,0x336b7aab,0x33756ec3,0x337f60ed,
+   0x3389512d,0x33933f83,0x339d2bef,0x33a71672,
+   0x33b0ff10,0x33bae5c7,0x33c4ca99,0x33cead88,
+   0x33d88e95,0x33e26dbf,0x33ec4b09,0x33f62673,
+   0x34000000,0x3409d7af,0x3413ad82,0x341d817a,
+   0x34275397,0x343123db,0x343af248,0x3444bedd,
+   0x344e899d,0x34585288,0x3462199f,0x346bdee3,
+   0x3475a254,0x347f63f5,0x348923c6,0x3492e1c9,
+   0x349c9dfe,0x34a65865,0x34b01101,0x34b9c7d2,
+   0x34c37cda,0x34cd3018,0x34d6e18f,0x34e0913f,
+   0x34ea3f29,0x34f3eb4d,0x34fd95ae,0x35073e4c,
+   0x3510e528,0x351a8a43,0x35242d9d,0x352dcf39,
+   0x35376f16,0x35410d36,0x354aa99a,0x35544442,
+   0x355ddd2f,0x35677463,0x357109df,0x357a9da2,
+   0x35842fb0,0x358dc007,0x35974ea9,0x35a0db98,
+   0x35aa66d3,0x35b3f05c,0x35bd7833,0x35c6fe5a,
+   0x35d082d3,0x35da059c,0x35e386b7,0x35ed0626,
+   0x35f683e8,0x36000000,0x36097a6e,0x3612f331,
+   0x361c6a4d,0x3625dfc1,0x362f538f,0x3638c5b7,
+   0x36423639,0x364ba518,0x36551252,0x365e7deb,
+   0x3667e7e2,0x36715039,0x367ab6f0,0x36841c07,
+   0x368d7f81,0x3696e15d,0x36a0419d,0x36a9a040,
+   0x36b2fd49,0x36bc58b8,0x36c5b28e,0x36cf0acb,
+   0x36d86170,0x36e1b680,0x36eb09f8,0x36f45bdc,
+   0x36fdac2b,0x3706fae7,0x37104810,0x371993a7,
+   0x3722ddad,0x372c2622,0x37356d08,0x373eb25f,
+   0x3747f629,0x37513865,0x375a7914,0x3763b838,
+   0x376cf5d0,0x377631e0,0x377f6c64,0x3788a561,
+   0x3791dcd6,0x379b12c4,0x37a4472c,0x37ad7a0e,
+   0x37b6ab6a,0x37bfdb44,0x37c90999,0x37d2366d,
+   0x37db61be,0x37e48b8e,0x37edb3de,0x37f6daae,
+   0x38000000,0x380923d3,0x3812462a,0x381b6703,
+   0x38248660,0x382da442,0x3836c0aa,0x383fdb97,
+   0x3848f50c,0x38520d09,0x385b238d,0x3864389b,
+   0x386d4c33,0x38765e55,0x387f6f01,0x38887e3b,
+   0x38918c00,0x389a9853,0x38a3a334,0x38acaca3,
+   0x38b5b4a3,0x38bebb32,0x38c7c051,0x38d0c402,
+   0x38d9c645,0x38e2c71b,0x38ebc685,0x38f4c482,
+   0x38fdc114,0x3906bc3c,0x390fb5fa,0x3918ae4f,
+   0x3921a53a,0x392a9abe,0x39338edb,0x393c8192,
+   0x394572e2,0x394e62ce,0x39575155,0x39603e77,
+   0x39692a36,0x39721494,0x397afd8f,0x3983e527,
+   0x398ccb60,0x3995b039,0x399e93b2,0x39a775cc,
+   0x39b05689,0x39b935e8,0x39c213e9,0x39caf08e,
+   0x39d3cbd9,0x39dca5c7,0x39e57e5b,0x39ee5596,
+   0x39f72b77,0x3a000000,0x3a08d331,0x3a11a50a,
+   0x3a1a758d,0x3a2344ba,0x3a2c1291,0x3a34df13,
+   0x3a3daa41,0x3a46741b,0x3a4f3ca3,0x3a5803d7,
+   0x3a60c9ba,0x3a698e4b,0x3a72518b,0x3a7b137c,
+   0x3a83d41d,0x3a8c936f,0x3a955173,0x3a9e0e29,
+   0x3aa6c992,0x3aaf83ae,0x3ab83c7e,0x3ac0f403,
+   0x3ac9aa3c,0x3ad25f2c,0x3adb12d1,0x3ae3c52d,
+   0x3aec7642,0x3af5260e,0x3afdd492,0x3b0681d0,
+   0x3b0f2dc6,0x3b17d878,0x3b2081e4,0x3b292a0c,
+   0x3b31d0f0,0x3b3a7690,0x3b431aec,0x3b4bbe06,
+   0x3b545fdf,0x3b5d0077,0x3b659fcd,0x3b6e3de4,
+   0x3b76daba,0x3b7f7651,0x3b8810aa,0x3b90a9c4,
+   0x3b9941a1,0x3ba1d842,0x3baa6da5,0x3bb301cd,
+   0x3bbb94b9,0x3bc4266a,0x3bccb6e2,0x3bd5461f,
+   0x3bddd423,0x3be660ee,0x3beeec81,0x3bf776dc,
+   0x3c000000,0x3c0887ed,0x3c110ea4,0x3c199426,
+   0x3c221872,0x3c2a9b8a,0x3c331d6e,0x3c3b9e1d,
+   0x3c441d9a,0x3c4c9be5,0x3c5518fd,0x3c5d94e3,
+   0x3c660f98,0x3c6e891d,0x3c770172,0x3c7f7898,
+   0x3c87ee8e,0x3c906356,0x3c98d6ef,0x3ca1495b,
+   0x3ca9ba9a,0x3cb22aac,0x3cba9992,0x3cc3074c,
+   0x3ccb73dc,0x3cd3df41,0x3cdc497b,0x3ce4b28c,
+   0x3ced1a73,0x3cf58132,0x3cfde6c8,0x3d064b37,
+   0x3d0eae7f,0x3d17109f,0x3d1f719a,0x3d27d16e,
+   0x3d30301d,0x3d388da8,0x3d40ea0d,0x3d49454f,
+   0x3d519f6d,0x3d59f867,0x3d625040,0x3d6aa6f6,
+   0x3d72fc8b,0x3d7b50fe,0x3d83a451,0x3d8bf683,
+   0x3d944796,0x3d9c9788,0x3da4e65c,0x3dad3412,
+   0x3db580a9,0x3dbdcc24,0x3dc61680,0x3dce5fc0,
+   0x3dd6a7e4,0x3ddeeeed,0x3de734d9,0x3def79ab,
+   0x3df7bd62,0x3e000000,0x3e084184,0x3e1081ee,
+   0x3e18c140,0x3e20ff7a,0x3e293c9c,0x3e3178a7,
+   0x3e39b39a,0x3e41ed77,0x3e4a263d,0x3e525def,
+   0x3e5a948b,0x3e62ca12,0x3e6afe85,0x3e7331e4,
+   0x3e7b642f,0x3e839567,0x3e8bc58c,0x3e93f49f,
+   0x3e9c22a1,0x3ea44f91,0x3eac7b6f,0x3eb4a63e,
+   0x3ebccffb,0x3ec4f8aa,0x3ecd2049,0x3ed546d9,
+   0x3edd6c5a,0x3ee590cd,0x3eedb433,0x3ef5d68c,
+   0x3efdf7d7,0x3f061816,0x3f0e3749,0x3f165570,
+   0x3f1e728c,0x3f268e9d,0x3f2ea9a4,0x3f36c3a0,
+   0x3f3edc93,0x3f46f47c,0x3f4f0b5d,0x3f572135,
+   0x3f5f3606,0x3f6749cf,0x3f6f5c90,0x3f776e4a,
+   0x3f7f7efe,0x3f878eab,0x3f8f9d53,0x3f97aaf6,
+   0x3f9fb793,0x3fa7c32c,0x3fafcdc1,0x3fb7d752,
+   0x3fbfdfe0,0x3fc7e76b,0x3fcfedf3,0x3fd7f378,
+   0x3fdff7fc,0x3fe7fb7f,0x3feffe00,0x3ff7ff80,
+   0x3fffffff,
+};
+
+static const int32_t av_sqr_exp_multbl_sf[2] = {
+   0x20000000,0x2d413ccd,
+};
+
+static const int32_t av_costbl_1_sf[16] = {
+   0x40000000,0x3ec52fa0,0x3b20d79e,0x3536cc52,
+   0x2d413ccd,0x238e7673,0x187de2a7,0x0c7c5c1e,
+   0x00000000,0xf383a3e3,0xe7821d5a,0xdc71898e,
+   0xd2bec334,0xcac933af,0xc4df2863,0xc13ad061,
+};
+
+static const int32_t av_costbl_2_sf[32] = {
+   0x40000000,0x3fffb10b,0x3ffec42d,0x3ffd3969,
+   0x3ffb10c1,0x3ff84a3c,0x3ff4e5e0,0x3ff0e3b6,
+   0x3fec43c7,0x3fe7061f,0x3fe12acb,0x3fdab1d9,
+   0x3fd39b5a,0x3fcbe75e,0x3fc395f9,0x3fbaa740,
+   0x3fb11b48,0x3fa6f228,0x3f9c2bfb,0x3f90c8da,
+   0x3f84c8e2,0x3f782c30,0x3f6af2e3,0x3f5d1d1d,
+   0x3f4eaafe,0x3f3f9cab,0x3f2ff24a,0x3f1fabff,
+   0x3f0ec9f5,0x3efd4c54,0x3eeb3347,0x3ed87efc,
+};
+
+static const int32_t av_sintbl_2_sf[32] = {
+   0x00000000,0x006487c4,0x00c90e90,0x012d936c,
+   0x0192155f,0x01f69373,0x025b0caf,0x02bf801a,
+   0x0323ecbe,0x038851a2,0x03ecadcf,0x0451004d,
+   0x04b54825,0x0519845e,0x057db403,0x05e1d61b,
+   0x0645e9af,0x06a9edc9,0x070de172,0x0771c3b3,
+   0x07d59396,0x08395024,0x089cf867,0x09008b6a,
+   0x09640837,0x09c76dd8,0x0a2abb59,0x0a8defc3,
+   0x0af10a22,0x0b540982,0x0bb6ecef,0x0c19b374,
+};
+
+static const int32_t av_costbl_3_sf[32] = {
+   0x40000000,0x3fffffec,0x3fffffb1,0x3fffff4e,
+   0x3ffffec4,0x3ffffe13,0x3ffffd39,0x3ffffc39,
+   0x3ffffb11,0x3ffff9c1,0x3ffff84a,0x3ffff6ac,
+   0x3ffff4e6,0x3ffff2f8,0x3ffff0e3,0x3fffeea7,
+   0x3fffec43,0x3fffe9b7,0x3fffe705,0x3fffe42a,
+   0x3fffe128,0x3fffddff,0x3fffdaae,0x3fffd736,
+   0x3fffd396,0x3fffcfcf,0x3fffcbe0,0x3fffc7ca,
+   0x3fffc38c,0x3fffbf27,0x3fffba9b,0x3fffb5e7,
+};
+
+static const int32_t av_sintbl_3_sf[32] = {
+   0x00000000,0x0003243f,0x0006487f,0x00096cbe,
+   0x000c90fe,0x000fb53d,0x0012d97c,0x0015fdbb,
+   0x001921fb,0x001c463a,0x001f6a79,0x00228eb8,
+   0x0025b2f7,0x0028d736,0x002bfb74,0x002f1fb3,
+   0x003243f1,0x00356830,0x00388c6e,0x003bb0ac,
+   0x003ed4ea,0x0041f928,0x00451d66,0x004841a3,
+   0x004b65e1,0x004e8a1e,0x0051ae5b,0x0054d297,
+   0x0057f6d4,0x005b1b10,0x005e3f4c,0x00616388,
+};
+
+static const int32_t av_costbl_4_sf[33] = {
+   0x40000000,0x40000000,0x40000000,0x40000000,
+   0x40000000,0x40000000,0x3fffffff,0x3fffffff,
+   0x3fffffff,0x3ffffffe,0x3ffffffe,0x3ffffffe,
+   0x3ffffffd,0x3ffffffd,0x3ffffffc,0x3ffffffc,
+   0x3ffffffb,0x3ffffffa,0x3ffffffa,0x3ffffff9,
+   0x3ffffff8,0x3ffffff7,0x3ffffff7,0x3ffffff6,
+   0x3ffffff5,0x3ffffff4,0x3ffffff3,0x3ffffff2,
+   0x3ffffff1,0x3ffffff0,0x3fffffef,0x3fffffed,
+   0x3fffffec,
+};
+
+static const int32_t av_sintbl_4_sf[33] = {
+   0x00000000,0x00001922,0x00003244,0x00004b66,
+   0x00006488,0x00007daa,0x000096cc,0x0000afee,
+   0x0000c910,0x0000e232,0x0000fb54,0x00011476,
+   0x00012d98,0x000146ba,0x00015fdc,0x000178fe,
+   0x00019220,0x0001ab42,0x0001c464,0x0001dd86,
+   0x0001f6a8,0x00020fca,0x000228ec,0x0002420e,
+   0x00025b30,0x00027452,0x00028d74,0x0002a696,
+   0x0002bfb7,0x0002d8d9,0x0002f1fb,0x00030b1d,
+   0x0003243f,
+};
+#endif /* AVUTIL_SOFTFLOAT_TABLES_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/spherical.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/spherical.c
new file mode 100644
index 000000000..4be55f36c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/spherical.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2016 Vittorio Giovara <vittorio.giovara@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "mem.h"
+#include "spherical.h"
+
+AVSphericalMapping *av_spherical_alloc(size_t *size)
+{
+    AVSphericalMapping *spherical = av_mallocz(sizeof(AVSphericalMapping));
+    if (!spherical)
+        return NULL;
+
+    if (size)
+        *size = sizeof(*spherical);
+
+    return spherical;
+}
+
+void av_spherical_tile_bounds(const AVSphericalMapping *map,
+                              size_t width, size_t height,
+                              size_t *left, size_t *top,
+                              size_t *right, size_t *bottom)
+{
+    /* conversion from 0.32 coordinates to pixels */
+    uint64_t orig_width  = (uint64_t) width  * UINT32_MAX /
+                           (UINT32_MAX - map->bound_right  - map->bound_left);
+    uint64_t orig_height = (uint64_t) height * UINT32_MAX /
+                           (UINT32_MAX - map->bound_bottom - map->bound_top);
+
+    /* add a (UINT32_MAX - 1) to round up integer division */
+    *left   = (orig_width  * map->bound_left + UINT32_MAX - 1) / UINT32_MAX;
+    *top    = (orig_height * map->bound_top  + UINT32_MAX - 1) / UINT32_MAX;
+    *right  = orig_width  - width  - *left;
+    *bottom = orig_height - height - *top;
+}
+
+static const char *spherical_projection_names[] = {
+    [AV_SPHERICAL_EQUIRECTANGULAR]      = "equirectangular",
+    [AV_SPHERICAL_CUBEMAP]              = "cubemap",
+    [AV_SPHERICAL_EQUIRECTANGULAR_TILE] = "tiled equirectangular",
+};
+
+const char *av_spherical_projection_name(enum AVSphericalProjection projection)
+{
+    if ((unsigned)projection >= FF_ARRAY_ELEMS(spherical_projection_names))
+        return "unknown";
+
+    return spherical_projection_names[projection];
+}
+
+int av_spherical_from_name(const char *name)
+{
+    int i;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(spherical_projection_names); i++) {
+        size_t len = strlen(spherical_projection_names[i]);
+        if (!strncmp(spherical_projection_names[i], name, len))
+            return i;
+    }
+
+    return -1;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/spherical.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/spherical.h
new file mode 100644
index 000000000..cef759cf2
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/spherical.h
@@ -0,0 +1,232 @@
+/*
+ * Copyright (c) 2016 Vittorio Giovara <vittorio.giovara@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Spherical video
+ */
+
+#ifndef AVUTIL_SPHERICAL_H
+#define AVUTIL_SPHERICAL_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+/**
+ * @addtogroup lavu_video
+ * @{
+ *
+ * @defgroup lavu_video_spherical Spherical video mapping
+ * @{
+ */
+
+/**
+ * @addtogroup lavu_video_spherical
+ * A spherical video file contains surfaces that need to be mapped onto a
+ * sphere. Depending on how the frame was converted, a different distortion
+ * transformation or surface recomposition function needs to be applied before
+ * the video should be mapped and displayed.
+ */
+
+/**
+ * Projection of the video surface(s) on a sphere.
+ */
+enum AVSphericalProjection {
+    /**
+     * Video represents a sphere mapped on a flat surface using
+     * equirectangular projection.
+     */
+    AV_SPHERICAL_EQUIRECTANGULAR,
+
+    /**
+     * Video frame is split into 6 faces of a cube, and arranged on a
+     * 3x2 layout. Faces are oriented upwards for the front, left, right,
+     * and back faces. The up face is oriented so the top of the face is
+     * forwards and the down face is oriented so the top of the face is
+     * to the back.
+     */
+    AV_SPHERICAL_CUBEMAP,
+
+    /**
+     * Video represents a portion of a sphere mapped on a flat surface
+     * using equirectangular projection. The @ref bounding fields indicate
+     * the position of the current video in a larger surface.
+     */
+    AV_SPHERICAL_EQUIRECTANGULAR_TILE,
+};
+
+/**
+ * This structure describes how to handle spherical videos, outlining
+ * information about projection, initial layout, and any other view modifier.
+ *
+ * @note The struct must be allocated with av_spherical_alloc() and
+ *       its size is not a part of the public ABI.
+ */
+typedef struct AVSphericalMapping {
+    /**
+     * Projection type.
+     */
+    enum AVSphericalProjection projection;
+
+    /**
+     * @name Initial orientation
+     * @{
+     * There fields describe additional rotations applied to the sphere after
+     * the video frame is mapped onto it. The sphere is rotated around the
+     * viewer, who remains stationary. The order of transformation is always
+     * yaw, followed by pitch, and finally by roll.
+     *
+     * The coordinate system matches the one defined in OpenGL, where the
+     * forward vector (z) is coming out of screen, and it is equivalent to
+     * a rotation matrix of R = r_y(yaw) * r_x(pitch) * r_z(roll).
+     *
+     * A positive yaw rotates the portion of the sphere in front of the viewer
+     * toward their right. A positive pitch rotates the portion of the sphere
+     * in front of the viewer upwards. A positive roll tilts the portion of
+     * the sphere in front of the viewer to the viewer's right.
+     *
+     * These values are exported as 16.16 fixed point.
+     *
+     * See this equirectangular projection as example:
+     *
+     * @code{.unparsed}
+     *                   Yaw
+     *     -180           0           180
+     *   90 +-------------+-------------+  180
+     *      |             |             |                  up
+     * P    |             |             |                 y|    forward
+     * i    |             ^             |                  |   /z
+     * t  0 +-------------X-------------+    0 Roll        |  /
+     * c    |             |             |                  | /
+     * h    |             |             |                 0|/_____right
+     *      |             |             |                        x
+     *  -90 +-------------+-------------+ -180
+     *
+     * X - the default camera center
+     * ^ - the default up vector
+     * @endcode
+     */
+    int32_t yaw;   ///< Rotation around the up vector [-180, 180].
+    int32_t pitch; ///< Rotation around the right vector [-90, 90].
+    int32_t roll;  ///< Rotation around the forward vector [-180, 180].
+    /**
+     * @}
+     */
+
+    /**
+     * @name Bounding rectangle
+     * @anchor bounding
+     * @{
+     * These fields indicate the location of the current tile, and where
+     * it should be mapped relative to the original surface. They are
+     * exported as 0.32 fixed point, and can be converted to classic
+     * pixel values with av_spherical_bounds().
+     *
+     * @code{.unparsed}
+     *      +----------------+----------+
+     *      |                |bound_top |
+     *      |            +--------+     |
+     *      | bound_left |tile    |     |
+     *      +<---------->|        |<--->+bound_right
+     *      |            +--------+     |
+     *      |                |          |
+     *      |    bound_bottom|          |
+     *      +----------------+----------+
+     * @endcode
+     *
+     * If needed, the original video surface dimensions can be derived
+     * by adding the current stream or frame size to the related bounds,
+     * like in the following example:
+     *
+     * @code{c}
+     *     original_width  = tile->width  + bound_left + bound_right;
+     *     original_height = tile->height + bound_top  + bound_bottom;
+     * @endcode
+     *
+     * @note These values are valid only for the tiled equirectangular
+     *       projection type (@ref AV_SPHERICAL_EQUIRECTANGULAR_TILE),
+     *       and should be ignored in all other cases.
+     */
+    uint32_t bound_left;   ///< Distance from the left edge
+    uint32_t bound_top;    ///< Distance from the top edge
+    uint32_t bound_right;  ///< Distance from the right edge
+    uint32_t bound_bottom; ///< Distance from the bottom edge
+    /**
+     * @}
+     */
+
+    /**
+     * Number of pixels to pad from the edge of each cube face.
+     *
+     * @note This value is valid for only for the cubemap projection type
+     *       (@ref AV_SPHERICAL_CUBEMAP), and should be ignored in all other
+     *       cases.
+     */
+    uint32_t padding;
+} AVSphericalMapping;
+
+/**
+ * Allocate a AVSphericalVideo structure and initialize its fields to default
+ * values.
+ *
+ * @return the newly allocated struct or NULL on failure
+ */
+AVSphericalMapping *av_spherical_alloc(size_t *size);
+
+/**
+ * Convert the @ref bounding fields from an AVSphericalVideo
+ * from 0.32 fixed point to pixels.
+ *
+ * @param map    The AVSphericalVideo map to read bound values from.
+ * @param width  Width of the current frame or stream.
+ * @param height Height of the current frame or stream.
+ * @param left   Pixels from the left edge.
+ * @param top    Pixels from the top edge.
+ * @param right  Pixels from the right edge.
+ * @param bottom Pixels from the bottom edge.
+ */
+void av_spherical_tile_bounds(const AVSphericalMapping *map,
+                              size_t width, size_t height,
+                              size_t *left, size_t *top,
+                              size_t *right, size_t *bottom);
+
+/**
+ * Provide a human-readable name of a given AVSphericalProjection.
+ *
+ * @param projection The input AVSphericalProjection.
+ *
+ * @return The name of the AVSphericalProjection, or "unknown".
+ */
+const char *av_spherical_projection_name(enum AVSphericalProjection projection);
+
+/**
+ * Get the AVSphericalProjection form a human-readable name.
+ *
+ * @param name The input string.
+ *
+ * @return The AVSphericalProjection value, or -1 if not found.
+ */
+int av_spherical_from_name(const char *name);
+/**
+ * @}
+ * @}
+ */
+
+#endif /* AVUTIL_SPHERICAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/stereo3d.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/stereo3d.c
new file mode 100644
index 000000000..6edcdb179
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/stereo3d.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2013 Vittorio Giovara <vittorio.giovara@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "common.h"
+#include "mem.h"
+#include "stereo3d.h"
+
+AVStereo3D *av_stereo3d_alloc(void)
+{
+    return av_mallocz(sizeof(AVStereo3D));
+}
+
+AVStereo3D *av_stereo3d_create_side_data(AVFrame *frame)
+{
+    AVFrameSideData *side_data = av_frame_new_side_data(frame,
+                                                        AV_FRAME_DATA_STEREO3D,
+                                                        sizeof(AVStereo3D));
+    if (!side_data)
+        return NULL;
+
+    memset(side_data->data, 0, sizeof(AVStereo3D));
+
+    return (AVStereo3D *)side_data->data;
+}
+
+static const char * const stereo3d_type_names[] = {
+    [AV_STEREO3D_2D]                  = "2D",
+    [AV_STEREO3D_SIDEBYSIDE]          = "side by side",
+    [AV_STEREO3D_TOPBOTTOM]           = "top and bottom",
+    [AV_STEREO3D_FRAMESEQUENCE]       = "frame alternate",
+    [AV_STEREO3D_CHECKERBOARD]        = "checkerboard",
+    [AV_STEREO3D_SIDEBYSIDE_QUINCUNX] = "side by side (quincunx subsampling)",
+    [AV_STEREO3D_LINES]               = "interleaved lines",
+    [AV_STEREO3D_COLUMNS]             = "interleaved columns",
+};
+
+const char *av_stereo3d_type_name(unsigned int type)
+{
+    if (type >= FF_ARRAY_ELEMS(stereo3d_type_names))
+        return "unknown";
+
+    return stereo3d_type_names[type];
+}
+
+int av_stereo3d_from_name(const char *name)
+{
+    int i;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(stereo3d_type_names); i++) {
+        size_t len = strlen(stereo3d_type_names[i]);
+        if (!strncmp(stereo3d_type_names[i], name, len))
+            return i;
+    }
+
+    return -1;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/stereo3d.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/stereo3d.h
new file mode 100644
index 000000000..d421aac2a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/stereo3d.h
@@ -0,0 +1,233 @@
+/*
+ * Copyright (c) 2013 Vittorio Giovara <vittorio.giovara@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Stereoscopic video
+ */
+
+#ifndef AVUTIL_STEREO3D_H
+#define AVUTIL_STEREO3D_H
+
+#include <stdint.h>
+
+#include "frame.h"
+
+/**
+ * @addtogroup lavu_video
+ * @{
+ *
+ * @defgroup lavu_video_stereo3d Stereo3D types and functions
+ * @{
+ */
+
+/**
+ * @addtogroup lavu_video_stereo3d
+ * A stereoscopic video file consists in multiple views embedded in a single
+ * frame, usually describing two views of a scene. This file describes all
+ * possible codec-independent view arrangements.
+ * */
+
+/**
+ * List of possible 3D Types
+ */
+enum AVStereo3DType {
+    /**
+     * Video is not stereoscopic (and metadata has to be there).
+     */
+    AV_STEREO3D_2D,
+
+    /**
+     * Views are next to each other.
+     *
+     * @code{.unparsed}
+     *    LLLLRRRR
+     *    LLLLRRRR
+     *    LLLLRRRR
+     *    ...
+     * @endcode
+     */
+    AV_STEREO3D_SIDEBYSIDE,
+
+    /**
+     * Views are on top of each other.
+     *
+     * @code{.unparsed}
+     *    LLLLLLLL
+     *    LLLLLLLL
+     *    RRRRRRRR
+     *    RRRRRRRR
+     * @endcode
+     */
+    AV_STEREO3D_TOPBOTTOM,
+
+    /**
+     * Views are alternated temporally.
+     *
+     * @code{.unparsed}
+     *     frame0   frame1   frame2   ...
+     *    LLLLLLLL RRRRRRRR LLLLLLLL
+     *    LLLLLLLL RRRRRRRR LLLLLLLL
+     *    LLLLLLLL RRRRRRRR LLLLLLLL
+     *    ...      ...      ...
+     * @endcode
+     */
+    AV_STEREO3D_FRAMESEQUENCE,
+
+    /**
+     * Views are packed in a checkerboard-like structure per pixel.
+     *
+     * @code{.unparsed}
+     *    LRLRLRLR
+     *    RLRLRLRL
+     *    LRLRLRLR
+     *    ...
+     * @endcode
+     */
+    AV_STEREO3D_CHECKERBOARD,
+
+    /**
+     * Views are next to each other, but when upscaling
+     * apply a checkerboard pattern.
+     *
+     * @code{.unparsed}
+     *     LLLLRRRR          L L L L    R R R R
+     *     LLLLRRRR    =>     L L L L  R R R R
+     *     LLLLRRRR          L L L L    R R R R
+     *     LLLLRRRR           L L L L  R R R R
+     * @endcode
+     */
+    AV_STEREO3D_SIDEBYSIDE_QUINCUNX,
+
+    /**
+     * Views are packed per line, as if interlaced.
+     *
+     * @code{.unparsed}
+     *    LLLLLLLL
+     *    RRRRRRRR
+     *    LLLLLLLL
+     *    ...
+     * @endcode
+     */
+    AV_STEREO3D_LINES,
+
+    /**
+     * Views are packed per column.
+     *
+     * @code{.unparsed}
+     *    LRLRLRLR
+     *    LRLRLRLR
+     *    LRLRLRLR
+     *    ...
+     * @endcode
+     */
+    AV_STEREO3D_COLUMNS,
+};
+
+/**
+ * List of possible view types.
+ */
+enum AVStereo3DView {
+    /**
+     * Frame contains two packed views.
+     */
+    AV_STEREO3D_VIEW_PACKED,
+
+    /**
+     * Frame contains only the left view.
+     */
+    AV_STEREO3D_VIEW_LEFT,
+
+    /**
+     * Frame contains only the right view.
+     */
+    AV_STEREO3D_VIEW_RIGHT,
+};
+
+/**
+ * Inverted views, Right/Bottom represents the left view.
+ */
+#define AV_STEREO3D_FLAG_INVERT     (1 << 0)
+
+/**
+ * Stereo 3D type: this structure describes how two videos are packed
+ * within a single video surface, with additional information as needed.
+ *
+ * @note The struct must be allocated with av_stereo3d_alloc() and
+ *       its size is not a part of the public ABI.
+ */
+typedef struct AVStereo3D {
+    /**
+     * How views are packed within the video.
+     */
+    enum AVStereo3DType type;
+
+    /**
+     * Additional information about the frame packing.
+     */
+    int flags;
+
+    /**
+     * Determines which views are packed.
+     */
+    enum AVStereo3DView view;
+} AVStereo3D;
+
+/**
+ * Allocate an AVStereo3D structure and set its fields to default values.
+ * The resulting struct can be freed using av_freep().
+ *
+ * @return An AVStereo3D filled with default values or NULL on failure.
+ */
+AVStereo3D *av_stereo3d_alloc(void);
+
+/**
+ * Allocate a complete AVFrameSideData and add it to the frame.
+ *
+ * @param frame The frame which side data is added to.
+ *
+ * @return The AVStereo3D structure to be filled by caller.
+ */
+AVStereo3D *av_stereo3d_create_side_data(AVFrame *frame);
+
+/**
+ * Provide a human-readable name of a given stereo3d type.
+ *
+ * @param type The input stereo3d type value.
+ *
+ * @return The name of the stereo3d value, or "unknown".
+ */
+const char *av_stereo3d_type_name(unsigned int type);
+
+/**
+ * Get the AVStereo3DType form a human-readable name.
+ *
+ * @param name The input string.
+ *
+ * @return The AVStereo3DType value, or -1 if not found.
+ */
+int av_stereo3d_from_name(const char *name);
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* AVUTIL_STEREO3D_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tea.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tea.c
new file mode 100644
index 000000000..b138f8bea
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tea.c
@@ -0,0 +1,121 @@
+/*
+ * A 32-bit implementation of the TEA algorithm
+ * Copyright (c) 2015 Vesselin Bontchev
+ *
+ * Loosely based on the implementation of David Wheeler and Roger Needham,
+ * https://en.wikipedia.org/wiki/Tiny_Encryption_Algorithm#Reference_code
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avutil.h"
+#include "common.h"
+#include "intreadwrite.h"
+#include "tea.h"
+
+typedef struct AVTEA {
+    uint32_t key[16];
+    int rounds;
+} AVTEA;
+
+struct AVTEA *av_tea_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVTEA));
+}
+
+const int av_tea_size = sizeof(AVTEA);
+
+void av_tea_init(AVTEA *ctx, const uint8_t key[16], int rounds)
+{
+    int i;
+
+    for (i = 0; i < 4; i++)
+        ctx->key[i] = AV_RB32(key + (i << 2));
+
+    ctx->rounds = rounds;
+}
+
+static void tea_crypt_ecb(AVTEA *ctx, uint8_t *dst, const uint8_t *src,
+                          int decrypt, uint8_t *iv)
+{
+    uint32_t v0, v1;
+    int rounds = ctx->rounds;
+    uint32_t k0, k1, k2, k3;
+    k0 = ctx->key[0];
+    k1 = ctx->key[1];
+    k2 = ctx->key[2];
+    k3 = ctx->key[3];
+
+    v0 = AV_RB32(src);
+    v1 = AV_RB32(src + 4);
+
+    if (decrypt) {
+        int i;
+        uint32_t delta = 0x9E3779B9U, sum = delta * (rounds / 2);
+
+        for (i = 0; i < rounds / 2; i++) {
+            v1 -= ((v0 << 4) + k2) ^ (v0 + sum) ^ ((v0 >> 5) + k3);
+            v0 -= ((v1 << 4) + k0) ^ (v1 + sum) ^ ((v1 >> 5) + k1);
+            sum -= delta;
+        }
+        if (iv) {
+            v0 ^= AV_RB32(iv);
+            v1 ^= AV_RB32(iv + 4);
+            memcpy(iv, src, 8);
+        }
+    } else {
+        int i;
+        uint32_t sum = 0, delta = 0x9E3779B9U;
+
+        for (i = 0; i < rounds / 2; i++) {
+            sum += delta;
+            v0 += ((v1 << 4) + k0) ^ (v1 + sum) ^ ((v1 >> 5) + k1);
+            v1 += ((v0 << 4) + k2) ^ (v0 + sum) ^ ((v0 >> 5) + k3);
+        }
+    }
+
+    AV_WB32(dst, v0);
+    AV_WB32(dst + 4, v1);
+}
+
+void av_tea_crypt(AVTEA *ctx, uint8_t *dst, const uint8_t *src, int count,
+                  uint8_t *iv, int decrypt)
+{
+    int i;
+
+    if (decrypt) {
+        while (count--) {
+            tea_crypt_ecb(ctx, dst, src, decrypt, iv);
+
+            src   += 8;
+            dst   += 8;
+        }
+    } else {
+        while (count--) {
+            if (iv) {
+                for (i = 0; i < 8; i++)
+                    dst[i] = src[i] ^ iv[i];
+                tea_crypt_ecb(ctx, dst, dst, decrypt, NULL);
+                memcpy(iv, dst, 8);
+            } else {
+                tea_crypt_ecb(ctx, dst, src, decrypt, NULL);
+            }
+            src   += 8;
+            dst   += 8;
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tea.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tea.h
new file mode 100644
index 000000000..dd929bdaf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tea.h
@@ -0,0 +1,71 @@
+/*
+ * A 32-bit implementation of the TEA algorithm
+ * Copyright (c) 2015 Vesselin Bontchev
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_TEA_H
+#define AVUTIL_TEA_H
+
+#include <stdint.h>
+
+/**
+ * @file
+ * @brief Public header for libavutil TEA algorithm
+ * @defgroup lavu_tea TEA
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+extern const int av_tea_size;
+
+struct AVTEA;
+
+/**
+  * Allocate an AVTEA context
+  * To free the struct: av_free(ptr)
+  */
+struct AVTEA *av_tea_alloc(void);
+
+/**
+ * Initialize an AVTEA context.
+ *
+ * @param ctx an AVTEA context
+ * @param key a key of 16 bytes used for encryption/decryption
+ * @param rounds the number of rounds in TEA (64 is the "standard")
+ */
+void av_tea_init(struct AVTEA *ctx, const uint8_t key[16], int rounds);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context.
+ *
+ * @param ctx an AVTEA context
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst
+ * @param count number of 8 byte blocks
+ * @param iv initialization vector for CBC mode, if NULL then ECB will be used
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_tea_crypt(struct AVTEA *ctx, uint8_t *dst, const uint8_t *src,
+                  int count, uint8_t *iv, int decrypt);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_TEA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/thread.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/thread.h
new file mode 100644
index 000000000..cc5272d37
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/thread.h
@@ -0,0 +1,173 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+// This header should only be used to simplify code where
+// threading is optional, not as a generic threading abstraction.
+
+#ifndef AVUTIL_THREAD_H
+#define AVUTIL_THREAD_H
+
+#include "config.h"
+
+#if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
+
+#if HAVE_PTHREADS
+#include <pthread.h>
+
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1
+
+#include "log.h"
+
+#define ASSERT_PTHREAD_NORET(func, ...) do {                            \
+    int ret = func(__VA_ARGS__);                                        \
+    if (ret) {                                                          \
+        char errbuf[AV_ERROR_MAX_STRING_SIZE] = "";                     \
+        av_log(NULL, AV_LOG_FATAL, AV_STRINGIFY(func)                   \
+               " failed with error: %s\n",                              \
+               av_make_error_string(errbuf, AV_ERROR_MAX_STRING_SIZE,   \
+                                    AVERROR(ret)));                     \
+        abort();                                                        \
+    }                                                                   \
+} while (0)
+
+#define ASSERT_PTHREAD(func, ...) do {                                  \
+    ASSERT_PTHREAD_NORET(func, __VA_ARGS__);                            \
+    return 0;                                                           \
+} while (0)
+
+static inline int strict_pthread_join(pthread_t thread, void **value_ptr)
+{
+    ASSERT_PTHREAD(pthread_join, thread, value_ptr);
+}
+
+static inline int strict_pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr)
+{
+    if (attr) {
+        ASSERT_PTHREAD_NORET(pthread_mutex_init, mutex, attr);
+    } else {
+        pthread_mutexattr_t local_attr;
+        ASSERT_PTHREAD_NORET(pthread_mutexattr_init, &local_attr);
+        ASSERT_PTHREAD_NORET(pthread_mutexattr_settype, &local_attr, PTHREAD_MUTEX_ERRORCHECK);
+        ASSERT_PTHREAD_NORET(pthread_mutex_init, mutex, &local_attr);
+        ASSERT_PTHREAD_NORET(pthread_mutexattr_destroy, &local_attr);
+    }
+    return 0;
+}
+
+static inline int strict_pthread_mutex_destroy(pthread_mutex_t *mutex)
+{
+    ASSERT_PTHREAD(pthread_mutex_destroy, mutex);
+}
+
+static inline int strict_pthread_mutex_lock(pthread_mutex_t *mutex)
+{
+    ASSERT_PTHREAD(pthread_mutex_lock, mutex);
+}
+
+static inline int strict_pthread_mutex_unlock(pthread_mutex_t *mutex)
+{
+    ASSERT_PTHREAD(pthread_mutex_unlock, mutex);
+}
+
+static inline int strict_pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
+{
+    ASSERT_PTHREAD(pthread_cond_init, cond, attr);
+}
+
+static inline int strict_pthread_cond_destroy(pthread_cond_t *cond)
+{
+    ASSERT_PTHREAD(pthread_cond_destroy, cond);
+}
+
+static inline int strict_pthread_cond_signal(pthread_cond_t *cond)
+{
+    ASSERT_PTHREAD(pthread_cond_signal, cond);
+}
+
+static inline int strict_pthread_cond_broadcast(pthread_cond_t *cond)
+{
+    ASSERT_PTHREAD(pthread_cond_broadcast, cond);
+}
+
+static inline int strict_pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
+{
+    ASSERT_PTHREAD(pthread_cond_wait, cond, mutex);
+}
+
+static inline int strict_pthread_once(pthread_once_t *once_control, void (*init_routine)(void))
+{
+    ASSERT_PTHREAD(pthread_once, once_control, init_routine);
+}
+
+#define pthread_join           strict_pthread_join
+#define pthread_mutex_init     strict_pthread_mutex_init
+#define pthread_mutex_destroy  strict_pthread_mutex_destroy
+#define pthread_mutex_lock     strict_pthread_mutex_lock
+#define pthread_mutex_unlock   strict_pthread_mutex_unlock
+#define pthread_cond_init      strict_pthread_cond_init
+#define pthread_cond_destroy   strict_pthread_cond_destroy
+#define pthread_cond_signal    strict_pthread_cond_signal
+#define pthread_cond_broadcast strict_pthread_cond_broadcast
+#define pthread_cond_wait      strict_pthread_cond_wait
+#define pthread_once           strict_pthread_once
+#endif
+
+#elif HAVE_OS2THREADS
+#include "compat/os2threads.h"
+#else
+#include "compat/w32pthreads.h"
+#endif
+
+#define AVMutex pthread_mutex_t
+#define AV_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
+
+#define ff_mutex_init    pthread_mutex_init
+#define ff_mutex_lock    pthread_mutex_lock
+#define ff_mutex_unlock  pthread_mutex_unlock
+#define ff_mutex_destroy pthread_mutex_destroy
+
+#define AVOnce pthread_once_t
+#define AV_ONCE_INIT PTHREAD_ONCE_INIT
+
+#define ff_thread_once(control, routine) pthread_once(control, routine)
+
+#else
+
+#define AVMutex char
+#define AV_MUTEX_INITIALIZER 0
+
+static inline int ff_mutex_init(AVMutex *mutex, const void *attr){ return 0; }
+static inline int ff_mutex_lock(AVMutex *mutex){ return 0; }
+static inline int ff_mutex_unlock(AVMutex *mutex){ return 0; }
+static inline int ff_mutex_destroy(AVMutex *mutex){ return 0; }
+
+#define AVOnce char
+#define AV_ONCE_INIT 0
+
+static inline int ff_thread_once(char *control, void (*routine)(void))
+{
+    if (!*control) {
+        routine();
+        *control = 1;
+    }
+    return 0;
+}
+
+#endif
+
+#endif /* AVUTIL_THREAD_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/threadmessage.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/threadmessage.c
new file mode 100644
index 000000000..764b7fb81
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/threadmessage.c
@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2014 Nicolas George
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with FFmpeg; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "fifo.h"
+#include "threadmessage.h"
+#include "thread.h"
+
+struct AVThreadMessageQueue {
+#if HAVE_THREADS
+    AVFifoBuffer *fifo;
+    pthread_mutex_t lock;
+    pthread_cond_t cond_recv;
+    pthread_cond_t cond_send;
+    int err_send;
+    int err_recv;
+    unsigned elsize;
+    void (*free_func)(void *msg);
+#else
+    int dummy;
+#endif
+};
+
+int av_thread_message_queue_alloc(AVThreadMessageQueue **mq,
+                                  unsigned nelem,
+                                  unsigned elsize)
+{
+#if HAVE_THREADS
+    AVThreadMessageQueue *rmq;
+    int ret = 0;
+
+    if (nelem > INT_MAX / elsize)
+        return AVERROR(EINVAL);
+    if (!(rmq = av_mallocz(sizeof(*rmq))))
+        return AVERROR(ENOMEM);
+    if ((ret = pthread_mutex_init(&rmq->lock, NULL))) {
+        av_free(rmq);
+        return AVERROR(ret);
+    }
+    if ((ret = pthread_cond_init(&rmq->cond_recv, NULL))) {
+        pthread_mutex_destroy(&rmq->lock);
+        av_free(rmq);
+        return AVERROR(ret);
+    }
+    if ((ret = pthread_cond_init(&rmq->cond_send, NULL))) {
+        pthread_cond_destroy(&rmq->cond_recv);
+        pthread_mutex_destroy(&rmq->lock);
+        av_free(rmq);
+        return AVERROR(ret);
+    }
+    if (!(rmq->fifo = av_fifo_alloc(elsize * nelem))) {
+        pthread_cond_destroy(&rmq->cond_send);
+        pthread_cond_destroy(&rmq->cond_recv);
+        pthread_mutex_destroy(&rmq->lock);
+        av_free(rmq);
+        return AVERROR(ENOMEM);
+    }
+    rmq->elsize = elsize;
+    *mq = rmq;
+    return 0;
+#else
+    *mq = NULL;
+    return AVERROR(ENOSYS);
+#endif /* HAVE_THREADS */
+}
+
+void av_thread_message_queue_set_free_func(AVThreadMessageQueue *mq,
+                                           void (*free_func)(void *msg))
+{
+#if HAVE_THREADS
+    mq->free_func = free_func;
+#endif
+}
+
+void av_thread_message_queue_free(AVThreadMessageQueue **mq)
+{
+#if HAVE_THREADS
+    if (*mq) {
+        av_thread_message_flush(*mq);
+        av_fifo_freep(&(*mq)->fifo);
+        pthread_cond_destroy(&(*mq)->cond_send);
+        pthread_cond_destroy(&(*mq)->cond_recv);
+        pthread_mutex_destroy(&(*mq)->lock);
+        av_freep(mq);
+    }
+#endif
+}
+
+int av_thread_message_queue_nb_elems(AVThreadMessageQueue *mq)
+{
+#if HAVE_THREADS
+    int ret;
+    pthread_mutex_lock(&mq->lock);
+    ret = av_fifo_size(mq->fifo);
+    pthread_mutex_unlock(&mq->lock);
+    return ret / mq->elsize;
+#else
+    return AVERROR(ENOSYS);
+#endif
+}
+
+#if HAVE_THREADS
+
+static int av_thread_message_queue_send_locked(AVThreadMessageQueue *mq,
+                                               void *msg,
+                                               unsigned flags)
+{
+    while (!mq->err_send && av_fifo_space(mq->fifo) < mq->elsize) {
+        if ((flags & AV_THREAD_MESSAGE_NONBLOCK))
+            return AVERROR(EAGAIN);
+        pthread_cond_wait(&mq->cond_send, &mq->lock);
+    }
+    if (mq->err_send)
+        return mq->err_send;
+    av_fifo_generic_write(mq->fifo, msg, mq->elsize, NULL);
+    /* one message is sent, signal one receiver */
+    pthread_cond_signal(&mq->cond_recv);
+    return 0;
+}
+
+static int av_thread_message_queue_recv_locked(AVThreadMessageQueue *mq,
+                                               void *msg,
+                                               unsigned flags)
+{
+    while (!mq->err_recv && av_fifo_size(mq->fifo) < mq->elsize) {
+        if ((flags & AV_THREAD_MESSAGE_NONBLOCK))
+            return AVERROR(EAGAIN);
+        pthread_cond_wait(&mq->cond_recv, &mq->lock);
+    }
+    if (av_fifo_size(mq->fifo) < mq->elsize)
+        return mq->err_recv;
+    av_fifo_generic_read(mq->fifo, msg, mq->elsize, NULL);
+    /* one message space appeared, signal one sender */
+    pthread_cond_signal(&mq->cond_send);
+    return 0;
+}
+
+#endif /* HAVE_THREADS */
+
+int av_thread_message_queue_send(AVThreadMessageQueue *mq,
+                                 void *msg,
+                                 unsigned flags)
+{
+#if HAVE_THREADS
+    int ret;
+
+    pthread_mutex_lock(&mq->lock);
+    ret = av_thread_message_queue_send_locked(mq, msg, flags);
+    pthread_mutex_unlock(&mq->lock);
+    return ret;
+#else
+    return AVERROR(ENOSYS);
+#endif /* HAVE_THREADS */
+}
+
+int av_thread_message_queue_recv(AVThreadMessageQueue *mq,
+                                 void *msg,
+                                 unsigned flags)
+{
+#if HAVE_THREADS
+    int ret;
+
+    pthread_mutex_lock(&mq->lock);
+    ret = av_thread_message_queue_recv_locked(mq, msg, flags);
+    pthread_mutex_unlock(&mq->lock);
+    return ret;
+#else
+    return AVERROR(ENOSYS);
+#endif /* HAVE_THREADS */
+}
+
+void av_thread_message_queue_set_err_send(AVThreadMessageQueue *mq,
+                                          int err)
+{
+#if HAVE_THREADS
+    pthread_mutex_lock(&mq->lock);
+    mq->err_send = err;
+    pthread_cond_broadcast(&mq->cond_send);
+    pthread_mutex_unlock(&mq->lock);
+#endif /* HAVE_THREADS */
+}
+
+void av_thread_message_queue_set_err_recv(AVThreadMessageQueue *mq,
+                                          int err)
+{
+#if HAVE_THREADS
+    pthread_mutex_lock(&mq->lock);
+    mq->err_recv = err;
+    pthread_cond_broadcast(&mq->cond_recv);
+    pthread_mutex_unlock(&mq->lock);
+#endif /* HAVE_THREADS */
+}
+
+#if HAVE_THREADS
+static void free_func_wrap(void *arg, void *msg, int size)
+{
+    AVThreadMessageQueue *mq = arg;
+    mq->free_func(msg);
+}
+#endif
+
+void av_thread_message_flush(AVThreadMessageQueue *mq)
+{
+#if HAVE_THREADS
+    int used, off;
+    void *free_func = mq->free_func;
+
+    pthread_mutex_lock(&mq->lock);
+    used = av_fifo_size(mq->fifo);
+    if (free_func)
+        for (off = 0; off < used; off += mq->elsize)
+            av_fifo_generic_peek_at(mq->fifo, mq, off, mq->elsize, free_func_wrap);
+    av_fifo_drain(mq->fifo, used);
+    /* only the senders need to be notified since the queue is empty and there
+     * is nothing to read */
+    pthread_cond_broadcast(&mq->cond_send);
+    pthread_mutex_unlock(&mq->lock);
+#endif /* HAVE_THREADS */
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/threadmessage.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/threadmessage.h
new file mode 100644
index 000000000..42ce655f3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/threadmessage.h
@@ -0,0 +1,115 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with FFmpeg; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_THREADMESSAGE_H
+#define AVUTIL_THREADMESSAGE_H
+
+typedef struct AVThreadMessageQueue AVThreadMessageQueue;
+
+typedef enum AVThreadMessageFlags {
+
+    /**
+     * Perform non-blocking operation.
+     * If this flag is set, send and recv operations are non-blocking and
+     * return AVERROR(EAGAIN) immediately if they can not proceed.
+     */
+    AV_THREAD_MESSAGE_NONBLOCK = 1,
+
+} AVThreadMessageFlags;
+
+/**
+ * Allocate a new message queue.
+ *
+ * @param mq      pointer to the message queue
+ * @param nelem   maximum number of elements in the queue
+ * @param elsize  size of each element in the queue
+ * @return  >=0 for success; <0 for error, in particular AVERROR(ENOSYS) if
+ *          lavu was built without thread support
+ */
+int av_thread_message_queue_alloc(AVThreadMessageQueue **mq,
+                                  unsigned nelem,
+                                  unsigned elsize);
+
+/**
+ * Free a message queue.
+ *
+ * The message queue must no longer be in use by another thread.
+ */
+void av_thread_message_queue_free(AVThreadMessageQueue **mq);
+
+/**
+ * Send a message on the queue.
+ */
+int av_thread_message_queue_send(AVThreadMessageQueue *mq,
+                                 void *msg,
+                                 unsigned flags);
+
+/**
+ * Receive a message from the queue.
+ */
+int av_thread_message_queue_recv(AVThreadMessageQueue *mq,
+                                 void *msg,
+                                 unsigned flags);
+
+/**
+ * Set the sending error code.
+ *
+ * If the error code is set to non-zero, av_thread_message_queue_send() will
+ * return it immediately. Conventional values, such as AVERROR_EOF or
+ * AVERROR(EAGAIN), can be used to cause the sending thread to stop or
+ * suspend its operation.
+ */
+void av_thread_message_queue_set_err_send(AVThreadMessageQueue *mq,
+                                          int err);
+
+/**
+ * Set the receiving error code.
+ *
+ * If the error code is set to non-zero, av_thread_message_queue_recv() will
+ * return it immediately when there are no longer available messages.
+ * Conventional values, such as AVERROR_EOF or AVERROR(EAGAIN), can be used
+ * to cause the receiving thread to stop or suspend its operation.
+ */
+void av_thread_message_queue_set_err_recv(AVThreadMessageQueue *mq,
+                                          int err);
+
+/**
+ * Set the optional free message callback function which will be called if an
+ * operation is removing messages from the queue.
+ */
+void av_thread_message_queue_set_free_func(AVThreadMessageQueue *mq,
+                                           void (*free_func)(void *msg));
+
+/**
+ * Return the current number of messages in the queue.
+ *
+ * @return the current number of messages or AVERROR(ENOSYS) if lavu was built
+ *         without thread support
+ */
+int av_thread_message_queue_nb_elems(AVThreadMessageQueue *mq);
+
+/**
+ * Flush the message queue
+ *
+ * This function is mostly equivalent to reading and free-ing every message
+ * except that it will be done in a single operation (no lock/unlock between
+ * reads).
+ */
+void av_thread_message_flush(AVThreadMessageQueue *mq);
+
+#endif /* AVUTIL_THREADMESSAGE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/time.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/time.c
new file mode 100644
index 000000000..afa6658aa
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/time.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2000-2003 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include <stddef.h>
+#include <stdint.h>
+#include <time.h>
+#if HAVE_GETTIMEOFDAY
+#include <sys/time.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#if HAVE_WINDOWS_H
+#include <windows.h>
+#endif
+
+#include "time.h"
+#include "error.h"
+
+int64_t av_gettime(void)
+{
+#if HAVE_GETTIMEOFDAY
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+    return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
+#elif HAVE_GETSYSTEMTIMEASFILETIME
+    FILETIME ft;
+    int64_t t;
+    GetSystemTimeAsFileTime(&ft);
+    t = (int64_t)ft.dwHighDateTime << 32 | ft.dwLowDateTime;
+    return t / 10 - 11644473600000000; /* Jan 1, 1601 */
+#else
+    return -1;
+#endif
+}
+
+int64_t av_gettime_relative(void)
+{
+#if HAVE_CLOCK_GETTIME && defined(CLOCK_MONOTONIC)
+#ifdef __APPLE__
+    if (clock_gettime)
+#endif
+    {
+        struct timespec ts;
+        clock_gettime(CLOCK_MONOTONIC, &ts);
+        return (int64_t)ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
+    }
+#endif
+    return av_gettime() + 42 * 60 * 60 * INT64_C(1000000);
+}
+
+int av_gettime_relative_is_monotonic(void)
+{
+#if HAVE_CLOCK_GETTIME && defined(CLOCK_MONOTONIC)
+#ifdef __APPLE__
+    if (!clock_gettime)
+        return 0;
+#endif
+    return 1;
+#else
+    return 0;
+#endif
+}
+
+int av_usleep(unsigned usec)
+{
+#if HAVE_NANOSLEEP
+    struct timespec ts = { usec / 1000000, usec % 1000000 * 1000 };
+    while (nanosleep(&ts, &ts) < 0 && errno == EINTR);
+    return 0;
+#elif HAVE_USLEEP
+    return usleep(usec);
+#elif HAVE_SLEEP
+    Sleep(usec / 1000);
+    return 0;
+#else
+    return AVERROR(ENOSYS);
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/time.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/time.h
new file mode 100644
index 000000000..dc169b064
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/time.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2000-2003 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_TIME_H
+#define AVUTIL_TIME_H
+
+#include <stdint.h>
+
+/**
+ * Get the current time in microseconds.
+ */
+int64_t av_gettime(void);
+
+/**
+ * Get the current time in microseconds since some unspecified starting point.
+ * On platforms that support it, the time comes from a monotonic clock
+ * This property makes this time source ideal for measuring relative time.
+ * The returned values may not be monotonic on platforms where a monotonic
+ * clock is not available.
+ */
+int64_t av_gettime_relative(void);
+
+/**
+ * Indicates with a boolean result if the av_gettime_relative() time source
+ * is monotonic.
+ */
+int av_gettime_relative_is_monotonic(void);
+
+/**
+ * Sleep for a period of time.  Although the duration is expressed in
+ * microseconds, the actual delay may be rounded to the precision of the
+ * system timer.
+ *
+ * @param  usec Number of microseconds to sleep.
+ * @return zero on success or (negative) error code.
+ */
+int av_usleep(unsigned usec);
+
+#endif /* AVUTIL_TIME_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/time_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/time_internal.h
new file mode 100644
index 000000000..d0f007ab1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/time_internal.h
@@ -0,0 +1,49 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_TIME_INTERNAL_H
+#define AVUTIL_TIME_INTERNAL_H
+
+#include <time.h>
+#include "config.h"
+
+#if !HAVE_GMTIME_R && !defined(gmtime_r)
+static inline struct tm *ff_gmtime_r(const time_t* clock, struct tm *result)
+{
+    struct tm *ptr = gmtime(clock);
+    if (!ptr)
+        return NULL;
+    *result = *ptr;
+    return result;
+}
+#define gmtime_r ff_gmtime_r
+#endif
+
+#if !HAVE_LOCALTIME_R && !defined(localtime_r)
+static inline struct tm *ff_localtime_r(const time_t* clock, struct tm *result)
+{
+    struct tm *ptr = localtime(clock);
+    if (!ptr)
+        return NULL;
+    *result = *ptr;
+    return result;
+}
+#define localtime_r ff_localtime_r
+#endif
+
+#endif /* AVUTIL_TIME_INTERNAL_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/timecode.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/timecode.c
new file mode 100644
index 000000000..60077ba0c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/timecode.c
@@ -0,0 +1,220 @@
+/*
+ * Copyright (c) 2006 Smartjog S.A.S, Baptiste Coudurier <baptiste.coudurier@gmail.com>
+ * Copyright (c) 2011-2012 Smartjog S.A.S, Clément Bœsch <clement.boesch@smartjog.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Timecode helpers
+ * @see https://en.wikipedia.org/wiki/SMPTE_time_code
+ * @see http://www.dropframetimecode.org
+ */
+
+#include <stdio.h>
+#include "timecode.h"
+#include "log.h"
+#include "error.h"
+
+int av_timecode_adjust_ntsc_framenum2(int framenum, int fps)
+{
+    /* only works for NTSC 29.97 and 59.94 */
+    int drop_frames = 0;
+    int d, m, frames_per_10mins;
+
+    if (fps == 30) {
+        drop_frames = 2;
+        frames_per_10mins = 17982;
+    } else if (fps == 60) {
+        drop_frames = 4;
+        frames_per_10mins = 35964;
+    } else
+        return framenum;
+
+    d = framenum / frames_per_10mins;
+    m = framenum % frames_per_10mins;
+
+    return framenum + 9 * drop_frames * d + drop_frames * ((m - drop_frames) / (frames_per_10mins / 10));
+}
+
+uint32_t av_timecode_get_smpte_from_framenum(const AVTimecode *tc, int framenum)
+{
+    unsigned fps = tc->fps;
+    int drop = !!(tc->flags & AV_TIMECODE_FLAG_DROPFRAME);
+    int hh, mm, ss, ff;
+
+    framenum += tc->start;
+    if (drop)
+        framenum = av_timecode_adjust_ntsc_framenum2(framenum, tc->fps);
+    ff = framenum % fps;
+    ss = framenum / fps      % 60;
+    mm = framenum / (fps*60) % 60;
+    hh = framenum / (fps*3600) % 24;
+    return 0         << 31 | // color frame flag (0: unsync mode, 1: sync mode)
+           drop      << 30 | // drop  frame flag (0: non drop,    1: drop)
+           (ff / 10) << 28 | // tens  of frames
+           (ff % 10) << 24 | // units of frames
+           0         << 23 | // PC (NTSC) or BGF0 (PAL)
+           (ss / 10) << 20 | // tens  of seconds
+           (ss % 10) << 16 | // units of seconds
+           0         << 15 | // BGF0 (NTSC) or BGF2 (PAL)
+           (mm / 10) << 12 | // tens  of minutes
+           (mm % 10) <<  8 | // units of minutes
+           0         <<  7 | // BGF2 (NTSC) or PC (PAL)
+           0         <<  6 | // BGF1
+           (hh / 10) <<  4 | // tens  of hours
+           (hh % 10);        // units of hours
+}
+
+char *av_timecode_make_string(const AVTimecode *tc, char *buf, int framenum)
+{
+    int fps = tc->fps;
+    int drop = tc->flags & AV_TIMECODE_FLAG_DROPFRAME;
+    int hh, mm, ss, ff, neg = 0;
+
+    framenum += tc->start;
+    if (drop)
+        framenum = av_timecode_adjust_ntsc_framenum2(framenum, fps);
+    if (framenum < 0) {
+        framenum = -framenum;
+        neg = tc->flags & AV_TIMECODE_FLAG_ALLOWNEGATIVE;
+    }
+    ff = framenum % fps;
+    ss = framenum / fps        % 60;
+    mm = framenum / (fps*60)   % 60;
+    hh = framenum / (fps*3600);
+    if (tc->flags & AV_TIMECODE_FLAG_24HOURSMAX)
+        hh = hh % 24;
+    snprintf(buf, AV_TIMECODE_STR_SIZE, "%s%02d:%02d:%02d%c%02d",
+             neg ? "-" : "",
+             hh, mm, ss, drop ? ';' : ':', ff);
+    return buf;
+}
+
+static unsigned bcd2uint(uint8_t bcd)
+{
+   unsigned low  = bcd & 0xf;
+   unsigned high = bcd >> 4;
+   if (low > 9 || high > 9)
+       return 0;
+   return low + 10*high;
+}
+
+char *av_timecode_make_smpte_tc_string(char *buf, uint32_t tcsmpte, int prevent_df)
+{
+    unsigned hh   = bcd2uint(tcsmpte     & 0x3f);    // 6-bit hours
+    unsigned mm   = bcd2uint(tcsmpte>>8  & 0x7f);    // 7-bit minutes
+    unsigned ss   = bcd2uint(tcsmpte>>16 & 0x7f);    // 7-bit seconds
+    unsigned ff   = bcd2uint(tcsmpte>>24 & 0x3f);    // 6-bit frames
+    unsigned drop = tcsmpte & 1<<30 && !prevent_df;  // 1-bit drop if not arbitrary bit
+    snprintf(buf, AV_TIMECODE_STR_SIZE, "%02u:%02u:%02u%c%02u",
+             hh, mm, ss, drop ? ';' : ':', ff);
+    return buf;
+}
+
+char *av_timecode_make_mpeg_tc_string(char *buf, uint32_t tc25bit)
+{
+    snprintf(buf, AV_TIMECODE_STR_SIZE,
+             "%02"PRIu32":%02"PRIu32":%02"PRIu32"%c%02"PRIu32,
+             tc25bit>>19 & 0x1f,              // 5-bit hours
+             tc25bit>>13 & 0x3f,              // 6-bit minutes
+             tc25bit>>6  & 0x3f,              // 6-bit seconds
+             tc25bit     & 1<<24 ? ';' : ':', // 1-bit drop flag
+             tc25bit     & 0x3f);             // 6-bit frames
+    return buf;
+}
+
+static int check_fps(int fps)
+{
+    int i;
+    static const int supported_fps[] = {
+        24, 25, 30, 48, 50, 60, 100, 120, 150,
+    };
+
+    for (i = 0; i < FF_ARRAY_ELEMS(supported_fps); i++)
+        if (fps == supported_fps[i])
+            return 0;
+    return -1;
+}
+
+static int check_timecode(void *log_ctx, AVTimecode *tc)
+{
+    if ((int)tc->fps <= 0) {
+        av_log(log_ctx, AV_LOG_ERROR, "Valid timecode frame rate must be specified. Minimum value is 1\n");
+        return AVERROR(EINVAL);
+    }
+    if ((tc->flags & AV_TIMECODE_FLAG_DROPFRAME) && tc->fps != 30 && tc->fps != 60) {
+        av_log(log_ctx, AV_LOG_ERROR, "Drop frame is only allowed with 30000/1001 or 60000/1001 FPS\n");
+        return AVERROR(EINVAL);
+    }
+    if (check_fps(tc->fps) < 0) {
+        av_log(log_ctx, AV_LOG_WARNING, "Using non-standard frame rate %d/%d\n",
+               tc->rate.num, tc->rate.den);
+    }
+    return 0;
+}
+
+static int fps_from_frame_rate(AVRational rate)
+{
+    if (!rate.den || !rate.num)
+        return -1;
+    return (rate.num + rate.den/2) / rate.den;
+}
+
+int av_timecode_check_frame_rate(AVRational rate)
+{
+    return check_fps(fps_from_frame_rate(rate));
+}
+
+int av_timecode_init(AVTimecode *tc, AVRational rate, int flags, int frame_start, void *log_ctx)
+{
+    memset(tc, 0, sizeof(*tc));
+    tc->start = frame_start;
+    tc->flags = flags;
+    tc->rate  = rate;
+    tc->fps   = fps_from_frame_rate(rate);
+    return check_timecode(log_ctx, tc);
+}
+
+int av_timecode_init_from_string(AVTimecode *tc, AVRational rate, const char *str, void *log_ctx)
+{
+    char c;
+    int hh, mm, ss, ff, ret;
+
+    if (sscanf(str, "%d:%d:%d%c%d", &hh, &mm, &ss, &c, &ff) != 5) {
+        av_log(log_ctx, AV_LOG_ERROR, "Unable to parse timecode, "
+                                      "syntax: hh:mm:ss[:;.]ff\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    memset(tc, 0, sizeof(*tc));
+    tc->flags = c != ':' ? AV_TIMECODE_FLAG_DROPFRAME : 0; // drop if ';', '.', ...
+    tc->rate  = rate;
+    tc->fps   = fps_from_frame_rate(rate);
+
+    ret = check_timecode(log_ctx, tc);
+    if (ret < 0)
+        return ret;
+
+    tc->start = (hh*3600 + mm*60 + ss) * tc->fps + ff;
+    if (tc->flags & AV_TIMECODE_FLAG_DROPFRAME) { /* adjust frame number */
+        int tmins = 60*hh + mm;
+        tc->start -= (tc->fps == 30 ? 2 : 4) * (tmins - tmins/10);
+    }
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/timecode.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/timecode.h
new file mode 100644
index 000000000..37c1361bc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/timecode.h
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2006 Smartjog S.A.S, Baptiste Coudurier <baptiste.coudurier@gmail.com>
+ * Copyright (c) 2011-2012 Smartjog S.A.S, Clément Bœsch <clement.boesch@smartjog.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Timecode helpers header
+ */
+
+#ifndef AVUTIL_TIMECODE_H
+#define AVUTIL_TIMECODE_H
+
+#include <stdint.h>
+#include "rational.h"
+
+#define AV_TIMECODE_STR_SIZE 23
+
+enum AVTimecodeFlag {
+    AV_TIMECODE_FLAG_DROPFRAME      = 1<<0, ///< timecode is drop frame
+    AV_TIMECODE_FLAG_24HOURSMAX     = 1<<1, ///< timecode wraps after 24 hours
+    AV_TIMECODE_FLAG_ALLOWNEGATIVE  = 1<<2, ///< negative time values are allowed
+};
+
+typedef struct {
+    int start;          ///< timecode frame start (first base frame number)
+    uint32_t flags;     ///< flags such as drop frame, +24 hours support, ...
+    AVRational rate;    ///< frame rate in rational form
+    unsigned fps;       ///< frame per second; must be consistent with the rate field
+} AVTimecode;
+
+/**
+ * Adjust frame number for NTSC drop frame time code.
+ *
+ * @param framenum frame number to adjust
+ * @param fps      frame per second, 30 or 60
+ * @return         adjusted frame number
+ * @warning        adjustment is only valid in NTSC 29.97 and 59.94
+ */
+int av_timecode_adjust_ntsc_framenum2(int framenum, int fps);
+
+/**
+ * Convert frame number to SMPTE 12M binary representation.
+ *
+ * @param tc       timecode data correctly initialized
+ * @param framenum frame number
+ * @return         the SMPTE binary representation
+ *
+ * @note Frame number adjustment is automatically done in case of drop timecode,
+ *       you do NOT have to call av_timecode_adjust_ntsc_framenum2().
+ * @note The frame number is relative to tc->start.
+ * @note Color frame (CF), binary group flags (BGF) and biphase mark polarity
+ *       correction (PC) bits are set to zero.
+ */
+uint32_t av_timecode_get_smpte_from_framenum(const AVTimecode *tc, int framenum);
+
+/**
+ * Load timecode string in buf.
+ *
+ * @param buf      destination buffer, must be at least AV_TIMECODE_STR_SIZE long
+ * @param tc       timecode data correctly initialized
+ * @param framenum frame number
+ * @return         the buf parameter
+ *
+ * @note Timecode representation can be a negative timecode and have more than
+ *       24 hours, but will only be honored if the flags are correctly set.
+ * @note The frame number is relative to tc->start.
+ */
+char *av_timecode_make_string(const AVTimecode *tc, char *buf, int framenum);
+
+/**
+ * Get the timecode string from the SMPTE timecode format.
+ *
+ * @param buf        destination buffer, must be at least AV_TIMECODE_STR_SIZE long
+ * @param tcsmpte    the 32-bit SMPTE timecode
+ * @param prevent_df prevent the use of a drop flag when it is known the DF bit
+ *                   is arbitrary
+ * @return           the buf parameter
+ */
+char *av_timecode_make_smpte_tc_string(char *buf, uint32_t tcsmpte, int prevent_df);
+
+/**
+ * Get the timecode string from the 25-bit timecode format (MPEG GOP format).
+ *
+ * @param buf     destination buffer, must be at least AV_TIMECODE_STR_SIZE long
+ * @param tc25bit the 25-bits timecode
+ * @return        the buf parameter
+ */
+char *av_timecode_make_mpeg_tc_string(char *buf, uint32_t tc25bit);
+
+/**
+ * Init a timecode struct with the passed parameters.
+ *
+ * @param log_ctx     a pointer to an arbitrary struct of which the first field
+ *                    is a pointer to an AVClass struct (used for av_log)
+ * @param tc          pointer to an allocated AVTimecode
+ * @param rate        frame rate in rational form
+ * @param flags       miscellaneous flags such as drop frame, +24 hours, ...
+ *                    (see AVTimecodeFlag)
+ * @param frame_start the first frame number
+ * @return            0 on success, AVERROR otherwise
+ */
+int av_timecode_init(AVTimecode *tc, AVRational rate, int flags, int frame_start, void *log_ctx);
+
+/**
+ * Parse timecode representation (hh:mm:ss[:;.]ff).
+ *
+ * @param log_ctx a pointer to an arbitrary struct of which the first field is a
+ *                pointer to an AVClass struct (used for av_log).
+ * @param tc      pointer to an allocated AVTimecode
+ * @param rate    frame rate in rational form
+ * @param str     timecode string which will determine the frame start
+ * @return        0 on success, AVERROR otherwise
+ */
+int av_timecode_init_from_string(AVTimecode *tc, AVRational rate, const char *str, void *log_ctx);
+
+/**
+ * Check if the timecode feature is available for the given frame rate
+ *
+ * @return 0 if supported, <0 otherwise
+ */
+int av_timecode_check_frame_rate(AVRational rate);
+
+#endif /* AVUTIL_TIMECODE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/timer.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/timer.h
new file mode 100644
index 000000000..0bb353cfc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/timer.h
@@ -0,0 +1,141 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * high precision timer, useful to profile code
+ */
+
+#ifndef AVUTIL_TIMER_H
+#define AVUTIL_TIMER_H
+
+#include "config.h"
+
+#if CONFIG_LINUX_PERF
+# ifndef _GNU_SOURCE
+#  define _GNU_SOURCE
+# endif
+# include <unistd.h> // read(3)
+# include <sys/ioctl.h>
+# include <asm/unistd.h>
+# include <linux/perf_event.h>
+#endif
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#if HAVE_MACH_ABSOLUTE_TIME
+#include <mach/mach_time.h>
+#endif
+
+#include "log.h"
+
+#if   ARCH_AARCH64
+#   include "aarch64/timer.h"
+#elif ARCH_ARM
+#   include "arm/timer.h"
+#elif ARCH_PPC
+#   include "ppc/timer.h"
+#elif ARCH_X86
+#   include "x86/timer.h"
+#endif
+
+#if !defined(AV_READ_TIME)
+#   if HAVE_GETHRTIME
+#       define AV_READ_TIME gethrtime
+#   elif HAVE_MACH_ABSOLUTE_TIME
+#       define AV_READ_TIME mach_absolute_time
+#   endif
+#endif
+
+#ifndef FF_TIMER_UNITS
+#   define FF_TIMER_UNITS "UNITS"
+#endif
+
+#define TIMER_REPORT(id, tdiff)                                           \
+    {                                                                     \
+        static uint64_t tsum   = 0;                                       \
+        static int tcount      = 0;                                       \
+        static int tskip_count = 0;                                       \
+        static int thistogram[32] = {0};                                  \
+        thistogram[av_log2(tdiff)]++;                                     \
+        if (tcount < 2                ||                                  \
+            (tdiff) < 8 * tsum / tcount ||                                \
+            (tdiff) < 2000) {                                             \
+            tsum += (tdiff);                                              \
+            tcount++;                                                     \
+        } else                                                            \
+            tskip_count++;                                                \
+        if (((tcount + tskip_count) & (tcount + tskip_count - 1)) == 0) { \
+            int i;                                                        \
+            av_log(NULL, AV_LOG_ERROR,                                    \
+                   "%7"PRIu64" " FF_TIMER_UNITS " in %s,%8d runs,%7d skips",          \
+                   tsum * 10 / tcount, id, tcount, tskip_count);          \
+            for (i = 0; i < 32; i++)                                      \
+                av_log(NULL, AV_LOG_VERBOSE, " %2d", av_log2(2*thistogram[i]));\
+            av_log(NULL, AV_LOG_ERROR, "\n");                             \
+        }                                                                 \
+    }
+
+#if CONFIG_LINUX_PERF
+
+#define START_TIMER                                                         \
+    static int linux_perf_fd;                                               \
+    uint64_t tperf;                                                         \
+    if (!linux_perf_fd) {                                                   \
+        struct perf_event_attr attr = {                                     \
+            .type           = PERF_TYPE_HARDWARE,                           \
+            .size           = sizeof(struct perf_event_attr),               \
+            .config         = PERF_COUNT_HW_CPU_CYCLES,                     \
+            .disabled       = 1,                                            \
+            .exclude_kernel = 1,                                            \
+            .exclude_hv     = 1,                                            \
+        };                                                                  \
+        linux_perf_fd = syscall(__NR_perf_event_open, &attr,                \
+                                0, -1, -1, 0);                              \
+    }                                                                       \
+    if (linux_perf_fd == -1) {                                              \
+        av_log(NULL, AV_LOG_ERROR, "perf_event_open failed: %s\n",          \
+               av_err2str(AVERROR(errno)));                                 \
+    } else {                                                                \
+        ioctl(linux_perf_fd, PERF_EVENT_IOC_RESET, 0);                      \
+        ioctl(linux_perf_fd, PERF_EVENT_IOC_ENABLE, 0);                     \
+    }
+
+#define STOP_TIMER(id)                                                      \
+    ioctl(linux_perf_fd, PERF_EVENT_IOC_DISABLE, 0);                        \
+    read(linux_perf_fd, &tperf, sizeof(tperf));                             \
+    TIMER_REPORT(id, tperf)
+
+#elif defined(AV_READ_TIME)
+#define START_TIMER                             \
+    uint64_t tend;                              \
+    uint64_t tstart = AV_READ_TIME();           \
+
+#define STOP_TIMER(id)                                                    \
+    tend = AV_READ_TIME();                                                \
+    TIMER_REPORT(id, tend - tstart)
+#else
+#define START_TIMER
+#define STOP_TIMER(id) { }
+#endif
+
+#endif /* AVUTIL_TIMER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/timestamp.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/timestamp.h
new file mode 100644
index 000000000..e082f01b4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/timestamp.h
@@ -0,0 +1,78 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * timestamp utils, mostly useful for debugging/logging purposes
+ */
+
+#ifndef AVUTIL_TIMESTAMP_H
+#define AVUTIL_TIMESTAMP_H
+
+#include "common.h"
+
+#if defined(__cplusplus) && !defined(__STDC_FORMAT_MACROS) && !defined(PRId64)
+#error missing -D__STDC_FORMAT_MACROS / #define __STDC_FORMAT_MACROS
+#endif
+
+#define AV_TS_MAX_STRING_SIZE 32
+
+/**
+ * Fill the provided buffer with a string containing a timestamp
+ * representation.
+ *
+ * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE
+ * @param ts the timestamp to represent
+ * @return the buffer in input
+ */
+static inline char *av_ts_make_string(char *buf, int64_t ts)
+{
+    if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS");
+    else                      snprintf(buf, AV_TS_MAX_STRING_SIZE, "%" PRId64, ts);
+    return buf;
+}
+
+/**
+ * Convenience macro, the return value should be used only directly in
+ * function arguments but never stand-alone.
+ */
+#define av_ts2str(ts) av_ts_make_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts)
+
+/**
+ * Fill the provided buffer with a string containing a timestamp time
+ * representation.
+ *
+ * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE
+ * @param ts the timestamp to represent
+ * @param tb the timebase of the timestamp
+ * @return the buffer in input
+ */
+static inline char *av_ts_make_time_string(char *buf, int64_t ts, AVRational *tb)
+{
+    if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS");
+    else                      snprintf(buf, AV_TS_MAX_STRING_SIZE, "%.6g", av_q2d(*tb) * ts);
+    return buf;
+}
+
+/**
+ * Convenience macro, the return value should be used only directly in
+ * function arguments but never stand-alone.
+ */
+#define av_ts2timestr(ts, tb) av_ts_make_time_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts, tb)
+
+#endif /* AVUTIL_TIMESTAMP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tree.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tree.c
new file mode 100644
index 000000000..7b57b2d39
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tree.c
@@ -0,0 +1,168 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "error.h"
+#include "log.h"
+#include "mem.h"
+#include "tree.h"
+
+typedef struct AVTreeNode {
+    struct AVTreeNode *child[2];
+    void *elem;
+    int state;
+} AVTreeNode;
+
+const int av_tree_node_size = sizeof(AVTreeNode);
+
+struct AVTreeNode *av_tree_node_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVTreeNode));
+}
+
+void *av_tree_find(const AVTreeNode *t, void *key,
+                   int (*cmp)(const void *key, const void *b), void *next[2])
+{
+    if (t) {
+        unsigned int v = cmp(key, t->elem);
+        if (v) {
+            if (next)
+                next[v >> 31] = t->elem;
+            return av_tree_find(t->child[(v >> 31) ^ 1], key, cmp, next);
+        } else {
+            if (next) {
+                av_tree_find(t->child[0], key, cmp, next);
+                av_tree_find(t->child[1], key, cmp, next);
+            }
+            return t->elem;
+        }
+    }
+    return NULL;
+}
+
+void *av_tree_insert(AVTreeNode **tp, void *key,
+                     int (*cmp)(const void *key, const void *b), AVTreeNode **next)
+{
+    AVTreeNode *t = *tp;
+    if (t) {
+        unsigned int v = cmp(t->elem, key);
+        void *ret;
+        if (!v) {
+            if (*next)
+                return t->elem;
+            else if (t->child[0] || t->child[1]) {
+                int i = !t->child[0];
+                void *next_elem[2];
+                av_tree_find(t->child[i], key, cmp, next_elem);
+                key = t->elem = next_elem[i];
+                v   = -i;
+            } else {
+                *next = t;
+                *tp   = NULL;
+                return NULL;
+            }
+        }
+        ret = av_tree_insert(&t->child[v >> 31], key, cmp, next);
+        if (!ret) {
+            int i              = (v >> 31) ^ !!*next;
+            AVTreeNode **child = &t->child[i];
+            t->state += 2 * i - 1;
+
+            if (!(t->state & 1)) {
+                if (t->state) {
+                    /* The following code is equivalent to
+                     * if ((*child)->state * 2 == -t->state)
+                     *     rotate(child, i ^ 1);
+                     * rotate(tp, i);
+                     *
+                     * with rotate():
+                     * static void rotate(AVTreeNode **tp, int i)
+                     * {
+                     *     AVTreeNode *t= *tp;
+                     *
+                     *     *tp = t->child[i];
+                     *     t->child[i] = t->child[i]->child[i ^ 1];
+                     *     (*tp)->child[i ^ 1] = t;
+                     *     i = 4 * t->state + 2 * (*tp)->state + 12;
+                     *     t->state     = ((0x614586 >> i) & 3) - 1;
+                     *     (*tp)->state = ((0x400EEA >> i) & 3) - 1 +
+                     *                    ((*tp)->state >> 1);
+                     * }
+                     * but such a rotate function is both bigger and slower
+                     */
+                    if ((*child)->state * 2 == -t->state) {
+                        *tp                    = (*child)->child[i ^ 1];
+                        (*child)->child[i ^ 1] = (*tp)->child[i];
+                        (*tp)->child[i]        = *child;
+                        *child                 = (*tp)->child[i ^ 1];
+                        (*tp)->child[i ^ 1]    = t;
+
+                        (*tp)->child[0]->state = -((*tp)->state > 0);
+                        (*tp)->child[1]->state = (*tp)->state < 0;
+                        (*tp)->state           = 0;
+                    } else {
+                        *tp                 = *child;
+                        *child              = (*child)->child[i ^ 1];
+                        (*tp)->child[i ^ 1] = t;
+                        if ((*tp)->state)
+                            t->state = 0;
+                        else
+                            t->state >>= 1;
+                        (*tp)->state = -t->state;
+                    }
+                }
+            }
+            if (!(*tp)->state ^ !!*next)
+                return key;
+        }
+        return ret;
+    } else {
+        *tp   = *next;
+        *next = NULL;
+        if (*tp) {
+            (*tp)->elem = key;
+            return NULL;
+        } else
+            return key;
+    }
+}
+
+void av_tree_destroy(AVTreeNode *t)
+{
+    if (t) {
+        av_tree_destroy(t->child[0]);
+        av_tree_destroy(t->child[1]);
+        av_free(t);
+    }
+}
+
+void av_tree_enumerate(AVTreeNode *t, void *opaque,
+                       int (*cmp)(void *opaque, void *elem),
+                       int (*enu)(void *opaque, void *elem))
+{
+    if (t) {
+        int v = cmp ? cmp(opaque, t->elem) : 0;
+        if (v >= 0)
+            av_tree_enumerate(t->child[0], opaque, cmp, enu);
+        if (v == 0)
+            enu(opaque, t->elem);
+        if (v <= 0)
+            av_tree_enumerate(t->child[1], opaque, cmp, enu);
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tree.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tree.h
new file mode 100644
index 000000000..d5e0aebfb
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tree.h
@@ -0,0 +1,138 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * A tree container.
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#ifndef AVUTIL_TREE_H
+#define AVUTIL_TREE_H
+
+#include "attributes.h"
+#include "version.h"
+
+/**
+ * @addtogroup lavu_tree AVTree
+ * @ingroup lavu_data
+ *
+ * Low-complexity tree container
+ *
+ * Insertion, removal, finding equal, largest which is smaller than and
+ * smallest which is larger than, all have O(log n) worst-case complexity.
+ * @{
+ */
+
+
+struct AVTreeNode;
+extern const int av_tree_node_size;
+
+/**
+ * Allocate an AVTreeNode.
+ */
+struct AVTreeNode *av_tree_node_alloc(void);
+
+/**
+ * Find an element.
+ * @param root a pointer to the root node of the tree
+ * @param next If next is not NULL, then next[0] will contain the previous
+ *             element and next[1] the next element. If either does not exist,
+ *             then the corresponding entry in next is unchanged.
+ * @param cmp compare function used to compare elements in the tree,
+ *            API identical to that of Standard C's qsort
+ *            It is guaranteed that the first and only the first argument to cmp()
+ *            will be the key parameter to av_tree_find(), thus it could if the
+ *            user wants, be a different type (like an opaque context).
+ * @return An element with cmp(key, elem) == 0 or NULL if no such element
+ *         exists in the tree.
+ */
+void *av_tree_find(const struct AVTreeNode *root, void *key,
+                   int (*cmp)(const void *key, const void *b), void *next[2]);
+
+/**
+ * Insert or remove an element.
+ *
+ * If *next is NULL, then the supplied element will be removed if it exists.
+ * If *next is non-NULL, then the supplied element will be inserted, unless
+ * it already exists in the tree.
+ *
+ * @param rootp A pointer to a pointer to the root node of the tree; note that
+ *              the root node can change during insertions, this is required
+ *              to keep the tree balanced.
+ * @param key  pointer to the element key to insert in the tree
+ * @param next Used to allocate and free AVTreeNodes. For insertion the user
+ *             must set it to an allocated and zeroed object of at least
+ *             av_tree_node_size bytes size. av_tree_insert() will set it to
+ *             NULL if it has been consumed.
+ *             For deleting elements *next is set to NULL by the user and
+ *             av_tree_insert() will set it to the AVTreeNode which was
+ *             used for the removed element.
+ *             This allows the use of flat arrays, which have
+ *             lower overhead compared to many malloced elements.
+ *             You might want to define a function like:
+ *             @code
+ *             void *tree_insert(struct AVTreeNode **rootp, void *key,
+ *                               int (*cmp)(void *key, const void *b),
+ *                               AVTreeNode **next)
+ *             {
+ *                 if (!*next)
+ *                     *next = av_mallocz(av_tree_node_size);
+ *                 return av_tree_insert(rootp, key, cmp, next);
+ *             }
+ *             void *tree_remove(struct AVTreeNode **rootp, void *key,
+ *                               int (*cmp)(void *key, const void *b, AVTreeNode **next))
+ *             {
+ *                 av_freep(next);
+ *                 return av_tree_insert(rootp, key, cmp, next);
+ *             }
+ *             @endcode
+ * @param cmp compare function used to compare elements in the tree, API identical
+ *            to that of Standard C's qsort
+ * @return If no insertion happened, the found element; if an insertion or
+ *         removal happened, then either key or NULL will be returned.
+ *         Which one it is depends on the tree state and the implementation. You
+ *         should make no assumptions that it's one or the other in the code.
+ */
+void *av_tree_insert(struct AVTreeNode **rootp, void *key,
+                     int (*cmp)(const void *key, const void *b),
+                     struct AVTreeNode **next);
+
+void av_tree_destroy(struct AVTreeNode *t);
+
+/**
+ * Apply enu(opaque, &elem) to all the elements in the tree in a given range.
+ *
+ * @param cmp a comparison function that returns < 0 for an element below the
+ *            range, > 0 for an element above the range and == 0 for an
+ *            element inside the range
+ *
+ * @note The cmp function should use the same ordering used to construct the
+ *       tree.
+ */
+void av_tree_enumerate(struct AVTreeNode *t, void *opaque,
+                       int (*cmp)(void *opaque, void *elem),
+                       int (*enu)(void *opaque, void *elem));
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_TREE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/twofish.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/twofish.c
new file mode 100644
index 000000000..d84fa4f36
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/twofish.c
@@ -0,0 +1,331 @@
+/*
+ * An implementation of the TwoFish algorithm
+ * Copyright (c) 2015 Supraja Meedinti
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "twofish.h"
+#include "common.h"
+#include "intreadwrite.h"
+#include "attributes.h"
+
+#define LR(x, n) ((x) << (n) | (x) >> (32 - (n)))
+#define RR(x, n) ((x) >> (n) | (x) << (32 - (n)))
+
+typedef struct AVTWOFISH {
+    uint32_t K[40];
+    uint32_t S[4];
+    int ksize;
+    uint32_t MDS1[256];
+    uint32_t MDS2[256];
+    uint32_t MDS3[256];
+    uint32_t MDS4[256];
+} AVTWOFISH;
+
+static const uint8_t MD1[256] = {
+    0x00, 0x5b, 0xb6, 0xed, 0x05, 0x5e, 0xb3, 0xe8, 0x0a, 0x51, 0xbc, 0xe7, 0x0f, 0x54, 0xb9, 0xe2,
+    0x14, 0x4f, 0xa2, 0xf9, 0x11, 0x4a, 0xa7, 0xfc, 0x1e, 0x45, 0xa8, 0xf3, 0x1b, 0x40, 0xad, 0xf6,
+    0x28, 0x73, 0x9e, 0xc5, 0x2d, 0x76, 0x9b, 0xc0, 0x22, 0x79, 0x94, 0xcf, 0x27, 0x7c, 0x91, 0xca,
+    0x3c, 0x67, 0x8a, 0xd1, 0x39, 0x62, 0x8f, 0xd4, 0x36, 0x6d, 0x80, 0xdb, 0x33, 0x68, 0x85, 0xde,
+    0x50, 0x0b, 0xe6, 0xbd, 0x55, 0x0e, 0xe3, 0xb8, 0x5a, 0x01, 0xec, 0xb7, 0x5f, 0x04, 0xe9, 0xb2,
+    0x44, 0x1f, 0xf2, 0xa9, 0x41, 0x1a, 0xf7, 0xac, 0x4e, 0x15, 0xf8, 0xa3, 0x4b, 0x10, 0xfd, 0xa6,
+    0x78, 0x23, 0xce, 0x95, 0x7d, 0x26, 0xcb, 0x90, 0x72, 0x29, 0xc4, 0x9f, 0x77, 0x2c, 0xc1, 0x9a,
+    0x6c, 0x37, 0xda, 0x81, 0x69, 0x32, 0xdf, 0x84, 0x66, 0x3d, 0xd0, 0x8b, 0x63, 0x38, 0xd5, 0x8e,
+    0xa0, 0xfb, 0x16, 0x4d, 0xa5, 0xfe, 0x13, 0x48, 0xaa, 0xf1, 0x1c, 0x47, 0xaf, 0xf4, 0x19, 0x42,
+    0xb4, 0xef, 0x02, 0x59, 0xb1, 0xea, 0x07, 0x5c, 0xbe, 0xe5, 0x08, 0x53, 0xbb, 0xe0, 0x0d, 0x56,
+    0x88, 0xd3, 0x3e, 0x65, 0x8d, 0xd6, 0x3b, 0x60, 0x82, 0xd9, 0x34, 0x6f, 0x87, 0xdc, 0x31, 0x6a,
+    0x9c, 0xc7, 0x2a, 0x71, 0x99, 0xc2, 0x2f, 0x74, 0x96, 0xcd, 0x20, 0x7b, 0x93, 0xc8, 0x25, 0x7e,
+    0xf0, 0xab, 0x46, 0x1d, 0xf5, 0xae, 0x43, 0x18, 0xfa, 0xa1, 0x4c, 0x17, 0xff, 0xa4, 0x49, 0x12,
+    0xe4, 0xbf, 0x52, 0x09, 0xe1, 0xba, 0x57, 0x0c, 0xee, 0xb5, 0x58, 0x03, 0xeb, 0xb0, 0x5d, 0x06,
+    0xd8, 0x83, 0x6e, 0x35, 0xdd, 0x86, 0x6b, 0x30, 0xd2, 0x89, 0x64, 0x3f, 0xd7, 0x8c, 0x61, 0x3a,
+    0xcc, 0x97, 0x7a, 0x21, 0xc9, 0x92, 0x7f, 0x24, 0xc6, 0x9d, 0x70, 0x2b, 0xc3, 0x98, 0x75, 0x2e
+};
+
+static const uint8_t MD2[256] = {
+    0x00, 0xef, 0xb7, 0x58, 0x07, 0xe8, 0xb0, 0x5f, 0x0e, 0xe1, 0xb9, 0x56, 0x09, 0xe6, 0xbe, 0x51,
+    0x1c, 0xf3, 0xab, 0x44, 0x1b, 0xf4, 0xac, 0x43, 0x12, 0xfd, 0xa5, 0x4a, 0x15, 0xfa, 0xa2, 0x4d,
+    0x38, 0xd7, 0x8f, 0x60, 0x3f, 0xd0, 0x88, 0x67, 0x36, 0xd9, 0x81, 0x6e, 0x31, 0xde, 0x86, 0x69,
+    0x24, 0xcb, 0x93, 0x7c, 0x23, 0xcc, 0x94, 0x7b, 0x2a, 0xc5, 0x9d, 0x72, 0x2d, 0xc2, 0x9a, 0x75,
+    0x70, 0x9f, 0xc7, 0x28, 0x77, 0x98, 0xc0, 0x2f, 0x7e, 0x91, 0xc9, 0x26, 0x79, 0x96, 0xce, 0x21,
+    0x6c, 0x83, 0xdb, 0x34, 0x6b, 0x84, 0xdc, 0x33, 0x62, 0x8d, 0xd5, 0x3a, 0x65, 0x8a, 0xd2, 0x3d,
+    0x48, 0xa7, 0xff, 0x10, 0x4f, 0xa0, 0xf8, 0x17, 0x46, 0xa9, 0xf1, 0x1e, 0x41, 0xae, 0xf6, 0x19,
+    0x54, 0xbb, 0xe3, 0x0c, 0x53, 0xbc, 0xe4, 0x0b, 0x5a, 0xb5, 0xed, 0x02, 0x5d, 0xb2, 0xea, 0x05,
+    0xe0, 0x0f, 0x57, 0xb8, 0xe7, 0x08, 0x50, 0xbf, 0xee, 0x01, 0x59, 0xb6, 0xe9, 0x06, 0x5e, 0xb1,
+    0xfc, 0x13, 0x4b, 0xa4, 0xfb, 0x14, 0x4c, 0xa3, 0xf2, 0x1d, 0x45, 0xaa, 0xf5, 0x1a, 0x42, 0xad,
+    0xd8, 0x37, 0x6f, 0x80, 0xdf, 0x30, 0x68, 0x87, 0xd6, 0x39, 0x61, 0x8e, 0xd1, 0x3e, 0x66, 0x89,
+    0xc4, 0x2b, 0x73, 0x9c, 0xc3, 0x2c, 0x74, 0x9b, 0xca, 0x25, 0x7d, 0x92, 0xcd, 0x22, 0x7a, 0x95,
+    0x90, 0x7f, 0x27, 0xc8, 0x97, 0x78, 0x20, 0xcf, 0x9e, 0x71, 0x29, 0xc6, 0x99, 0x76, 0x2e, 0xc1,
+    0x8c, 0x63, 0x3b, 0xd4, 0x8b, 0x64, 0x3c, 0xd3, 0x82, 0x6d, 0x35, 0xda, 0x85, 0x6a, 0x32, 0xdd,
+    0xa8, 0x47, 0x1f, 0xf0, 0xaf, 0x40, 0x18, 0xf7, 0xa6, 0x49, 0x11, 0xfe, 0xa1, 0x4e, 0x16, 0xf9,
+    0xb4, 0x5b, 0x03, 0xec, 0xb3, 0x5c, 0x04, 0xeb, 0xba, 0x55, 0x0d, 0xe2, 0xbd, 0x52, 0x0a, 0xe5
+};
+
+static const uint8_t q0[256] = {
+    0xa9, 0x67, 0xb3, 0xe8, 0x04, 0xfd, 0xa3, 0x76, 0x9a, 0x92, 0x80, 0x78, 0xe4, 0xdd, 0xd1, 0x38,
+    0x0d, 0xc6, 0x35, 0x98, 0x18, 0xf7, 0xec, 0x6c, 0x43, 0x75, 0x37, 0x26, 0xfa, 0x13, 0x94, 0x48,
+    0xf2, 0xd0, 0x8b, 0x30, 0x84, 0x54, 0xdf, 0x23, 0x19, 0x5b, 0x3d, 0x59, 0xf3, 0xae, 0xa2, 0x82,
+    0x63, 0x01, 0x83, 0x2e, 0xd9, 0x51, 0x9b, 0x7c, 0xa6, 0xeb, 0xa5, 0xbe, 0x16, 0x0c, 0xe3, 0x61,
+    0xc0, 0x8c, 0x3a, 0xf5, 0x73, 0x2c, 0x25, 0x0b, 0xbb, 0x4e, 0x89, 0x6b, 0x53, 0x6a, 0xb4, 0xf1,
+    0xe1, 0xe6, 0xbd, 0x45, 0xe2, 0xf4, 0xb6, 0x66, 0xcc, 0x95, 0x03, 0x56, 0xd4, 0x1c, 0x1e, 0xd7,
+    0xfb, 0xc3, 0x8e, 0xb5, 0xe9, 0xcf, 0xbf, 0xba, 0xea, 0x77, 0x39, 0xaf, 0x33, 0xc9, 0x62, 0x71,
+    0x81, 0x79, 0x09, 0xad, 0x24, 0xcd, 0xf9, 0xd8, 0xe5, 0xc5, 0xb9, 0x4d, 0x44, 0x08, 0x86, 0xe7,
+    0xa1, 0x1d, 0xaa, 0xed, 0x06, 0x70, 0xb2, 0xd2, 0x41, 0x7b, 0xa0, 0x11, 0x31, 0xc2, 0x27, 0x90,
+    0x20, 0xf6, 0x60, 0xff, 0x96, 0x5c, 0xb1, 0xab, 0x9e, 0x9c, 0x52, 0x1b, 0x5f, 0x93, 0x0a, 0xef,
+    0x91, 0x85, 0x49, 0xee, 0x2d, 0x4f, 0x8f, 0x3b, 0x47, 0x87, 0x6d, 0x46, 0xd6, 0x3e, 0x69, 0x64,
+    0x2a, 0xce, 0xcb, 0x2f, 0xfc, 0x97, 0x05, 0x7a, 0xac, 0x7f, 0xd5, 0x1a, 0x4b, 0x0e, 0xa7, 0x5a,
+    0x28, 0x14, 0x3f, 0x29, 0x88, 0x3c, 0x4c, 0x02, 0xb8, 0xda, 0xb0, 0x17, 0x55, 0x1f, 0x8a, 0x7d,
+    0x57, 0xc7, 0x8d, 0x74, 0xb7, 0xc4, 0x9f, 0x72, 0x7e, 0x15, 0x22, 0x12, 0x58, 0x07, 0x99, 0x34,
+    0x6e, 0x50, 0xde, 0x68, 0x65, 0xbc, 0xdb, 0xf8, 0xc8, 0xa8, 0x2b, 0x40, 0xdc, 0xfe, 0x32, 0xa4,
+    0xca, 0x10, 0x21, 0xf0, 0xd3, 0x5d, 0x0f, 0x00, 0x6f, 0x9d, 0x36, 0x42, 0x4a, 0x5e, 0xc1, 0xe0
+};
+
+static const uint8_t q1[256] = {
+    0x75, 0xf3, 0xc6, 0xf4, 0xdb, 0x7b, 0xfb, 0xc8, 0x4a, 0xd3, 0xe6, 0x6b, 0x45, 0x7d, 0xe8, 0x4b,
+    0xd6, 0x32, 0xd8, 0xfd, 0x37, 0x71, 0xf1, 0xe1, 0x30, 0x0f, 0xf8, 0x1b, 0x87, 0xfa, 0x06, 0x3f,
+    0x5e, 0xba, 0xae, 0x5b, 0x8a, 0x00, 0xbc, 0x9d, 0x6d, 0xc1, 0xb1, 0x0e, 0x80, 0x5d, 0xd2, 0xd5,
+    0xa0, 0x84, 0x07, 0x14, 0xb5, 0x90, 0x2c, 0xa3, 0xb2, 0x73, 0x4c, 0x54, 0x92, 0x74, 0x36, 0x51,
+    0x38, 0xb0, 0xbd, 0x5a, 0xfc, 0x60, 0x62, 0x96, 0x6c, 0x42, 0xf7, 0x10, 0x7c, 0x28, 0x27, 0x8c,
+    0x13, 0x95, 0x9c, 0xc7, 0x24, 0x46, 0x3b, 0x70, 0xca, 0xe3, 0x85, 0xcb, 0x11, 0xd0, 0x93, 0xb8,
+    0xa6, 0x83, 0x20, 0xff, 0x9f, 0x77, 0xc3, 0xcc, 0x03, 0x6f, 0x08, 0xbf, 0x40, 0xe7, 0x2b, 0xe2,
+    0x79, 0x0c, 0xaa, 0x82, 0x41, 0x3a, 0xea, 0xb9, 0xe4, 0x9a, 0xa4, 0x97, 0x7e, 0xda, 0x7a, 0x17,
+    0x66, 0x94, 0xa1, 0x1d, 0x3d, 0xf0, 0xde, 0xb3, 0x0b, 0x72, 0xa7, 0x1c, 0xef, 0xd1, 0x53, 0x3e,
+    0x8f, 0x33, 0x26, 0x5f, 0xec, 0x76, 0x2a, 0x49, 0x81, 0x88, 0xee, 0x21, 0xc4, 0x1a, 0xeb, 0xd9,
+    0xc5, 0x39, 0x99, 0xcd, 0xad, 0x31, 0x8b, 0x01, 0x18, 0x23, 0xdd, 0x1f, 0x4e, 0x2d, 0xf9, 0x48,
+    0x4f, 0xf2, 0x65, 0x8e, 0x78, 0x5c, 0x58, 0x19, 0x8d, 0xe5, 0x98, 0x57, 0x67, 0x7f, 0x05, 0x64,
+    0xaf, 0x63, 0xb6, 0xfe, 0xf5, 0xb7, 0x3c, 0xa5, 0xce, 0xe9, 0x68, 0x44, 0xe0, 0x4d, 0x43, 0x69,
+    0x29, 0x2e, 0xac, 0x15, 0x59, 0xa8, 0x0a, 0x9e, 0x6e, 0x47, 0xdf, 0x34, 0x35, 0x6a, 0xcf, 0xdc,
+    0x22, 0xc9, 0xc0, 0x9b, 0x89, 0xd4, 0xed, 0xab, 0x12, 0xa2, 0x0d, 0x52, 0xbb, 0x02, 0x2f, 0xa9,
+    0xd7, 0x61, 0x1e, 0xb4, 0x50, 0x04, 0xf6, 0xc2, 0x16, 0x25, 0x86, 0x56, 0x55, 0x09, 0xbe, 0x91
+};
+
+struct AVTWOFISH *av_twofish_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVTWOFISH));
+}
+
+const int av_twofish_size = sizeof(AVTWOFISH);
+
+static uint8_t gfmul(uint8_t a, uint8_t b)
+{
+    uint8_t r = 0, t;
+    while (a && b) {
+        if (a & 1)
+            r = r ^ b;
+        t = b & 0x80;
+        b = b << 1;
+        if (t)
+            b = b ^ 0x4d;
+        a = a >> 1;
+    }
+    return r;
+}
+
+static uint32_t tf_RS(uint32_t k0, uint32_t k1)
+{
+    uint8_t s[4], m[8];
+    AV_WL32(m, k0);
+    AV_WL32(m + 4, k1);
+    s[0] = gfmul(0x01, m[0]) ^ gfmul(0xa4, m[1]) ^ gfmul(0x55, m[2]) ^ gfmul(0x87, m[3]) ^ gfmul(0x5a, m[4]) ^ gfmul(0x58, m[5]) ^ gfmul(0xdb, m[6]) ^ gfmul(0x9e, m[7]);
+    s[1] = gfmul(0xa4, m[0]) ^ gfmul(0x56, m[1]) ^ gfmul(0x82, m[2]) ^ gfmul(0xf3, m[3]) ^ gfmul(0x1e, m[4]) ^ gfmul(0xc6, m[5]) ^ gfmul(0x68, m[6]) ^ gfmul(0xe5, m[7]);
+    s[2] = gfmul(0x02, m[0]) ^ gfmul(0xa1, m[1]) ^ gfmul(0xfc, m[2]) ^ gfmul(0xc1, m[3]) ^ gfmul(0x47, m[4]) ^ gfmul(0xae, m[5]) ^ gfmul(0x3d, m[6]) ^ gfmul(0x19, m[7]);
+    s[3] = gfmul(0xa4, m[0]) ^ gfmul(0x55, m[1]) ^ gfmul(0x87, m[2]) ^ gfmul(0x5a, m[3]) ^ gfmul(0x58, m[4]) ^ gfmul(0xdb, m[5]) ^ gfmul(0x9e, m[6]) ^ gfmul(0x03, m[7]);
+    return AV_RL32(s);
+}
+
+static void tf_h0(uint8_t y[4], uint32_t L[4], int k)
+{
+    uint8_t l[4];
+    if (k == 4) {
+        AV_WL32(l, L[3]);
+        y[0] = q1[y[0]] ^ l[0];
+        y[1] = q0[y[1]] ^ l[1];
+        y[2] = q0[y[2]] ^ l[2];
+        y[3] = q1[y[3]] ^ l[3];
+    }
+    if (k >= 3) {
+        AV_WL32(l, L[2]);
+        y[0] = q1[y[0]] ^ l[0];
+        y[1] = q1[y[1]] ^ l[1];
+        y[2] = q0[y[2]] ^ l[2];
+        y[3] = q0[y[3]] ^ l[3];
+    }
+    AV_WL32(l, L[1]);
+    y[0] = q1[q0[q0[y[0]] ^ l[0]] ^ (L[0] & 0xff)];
+    y[1] = q0[q0[q1[y[1]] ^ l[1]] ^ ((L[0] >> 8) & 0xff)];
+    y[2] = q1[q1[q0[y[2]] ^ l[2]] ^ ((L[0] >> 16) & 0xff)];
+    y[3] = q0[q1[q1[y[3]] ^ l[3]] ^ (L[0] >> 24)];
+}
+
+static uint32_t tf_h(uint32_t X, uint32_t L[4], int k)
+{
+    uint8_t y[4], l[4];
+    AV_WL32(y, X);
+    tf_h0(y, L, k);
+
+    l[0] = y[0] ^ MD2[y[1]] ^ MD1[y[2]] ^ MD1[y[3]];
+    l[1] = MD1[y[0]] ^ MD2[y[1]] ^ MD2[y[2]] ^ y[3];
+    l[2] = MD2[y[0]] ^ MD1[y[1]] ^ y[2] ^ MD2[y[3]];
+    l[3] = MD2[y[0]] ^ y[1] ^ MD2[y[2]] ^ MD1[y[3]];
+
+    return AV_RL32(l);
+}
+
+static uint32_t MDS_mul(AVTWOFISH *cs, uint32_t X)
+{
+    return cs->MDS1[(X) & 0xff] ^ cs->MDS2[((X) >> 8) & 0xff] ^ cs->MDS3[((X) >> 16) & 0xff] ^ cs->MDS4[(X) >> 24];
+}
+
+static void precomputeMDS(AVTWOFISH *cs)
+{
+    uint8_t y[4];
+    int i;
+    for (i = 0; i < 256; i++) {
+        y[0] = y[1] = y[2] = y[3] = i;
+    tf_h0(y, cs->S, cs->ksize);
+        cs->MDS1[i] = ((uint32_t)y[0]) ^ ((uint32_t)MD1[y[0]] << 8) ^ ((uint32_t)MD2[y[0]] << 16) ^ ((uint32_t)MD2[y[0]] << 24);
+        cs->MDS2[i] = ((uint32_t)MD2[y[1]]) ^ ((uint32_t)MD2[y[1]] << 8) ^ ((uint32_t)MD1[y[1]] << 16) ^ ((uint32_t)y[1] << 24);
+        cs->MDS3[i] = ((uint32_t)MD1[y[2]]) ^ ((uint32_t)MD2[y[2]] << 8) ^ ((uint32_t)y[2] << 16) ^ ((uint32_t)MD2[y[2]] << 24);
+        cs->MDS4[i] = ((uint32_t)MD1[y[3]]) ^ ((uint32_t)y[3] << 8) ^ ((uint32_t)MD2[y[3]] << 16) ^ ((uint32_t)MD1[y[3]] << 24);
+    }
+}
+
+static void twofish_encrypt(AVTWOFISH *cs, uint8_t *dst, const uint8_t *src)
+{
+    uint32_t P[4], t0, t1;
+    int i;
+    P[0] = AV_RL32(src) ^ cs->K[0];
+    P[1] = AV_RL32(src + 4) ^ cs->K[1];
+    P[2] = AV_RL32(src + 8) ^ cs->K[2];
+    P[3] = AV_RL32(src + 12) ^ cs->K[3];
+    for (i = 0; i < 16; i += 2) {
+        t0 = MDS_mul(cs, P[0]);
+        t1 = MDS_mul(cs, LR(P[1], 8));
+        P[2] = RR(P[2] ^ (t0 + t1 + cs->K[2 * i + 8]), 1);
+        P[3] = LR(P[3], 1) ^ (t0 + 2 * t1 + cs->K[2 * i + 9]);
+        t0 = MDS_mul(cs, P[2]);
+        t1 = MDS_mul(cs, LR(P[3], 8));
+        P[0] = RR(P[0] ^ (t0 + t1 + cs->K[2 * i + 10]), 1);
+        P[1] = LR(P[1], 1) ^ (t0 + 2 * t1 + cs->K[2 * i + 11]);
+    }
+    P[2] ^= cs->K[4];
+    P[3] ^= cs->K[5];
+    P[0] ^= cs->K[6];
+    P[1] ^= cs->K[7];
+    AV_WL32(dst, P[2]);
+    AV_WL32(dst + 4, P[3]);
+    AV_WL32(dst + 8, P[0]);
+    AV_WL32(dst + 12, P[1]);
+}
+
+static void twofish_decrypt(AVTWOFISH *cs, uint8_t *dst, const uint8_t *src, uint8_t *iv)
+{
+    uint32_t P[4], t0, t1;
+    int i;
+    P[2] = AV_RL32(src) ^ cs->K[4];
+    P[3] = AV_RL32(src + 4) ^ cs->K[5];
+    P[0] = AV_RL32(src + 8) ^ cs->K[6];
+    P[1] = AV_RL32(src + 12) ^ cs->K[7];
+    for (i = 15; i >= 0; i -= 2) {
+        t0 = MDS_mul(cs, P[2]);
+        t1 = MDS_mul(cs, LR(P[3], 8));
+        P[0] = LR(P[0], 1) ^ (t0 + t1 + cs->K[2 * i + 8]);
+        P[1] = RR(P[1] ^ (t0 + 2 * t1 + cs->K[2 * i + 9]), 1);
+        t0 = MDS_mul(cs, P[0]);
+        t1 = MDS_mul(cs, LR(P[1], 8));
+        P[2] = LR(P[2], 1) ^ (t0 + t1 + cs->K[2 * i + 6]);
+        P[3] = RR(P[3] ^ (t0 + 2 * t1 + cs->K[2 * i + 7]), 1);
+    }
+    P[0] ^= cs->K[0];
+    P[1] ^= cs->K[1];
+    P[2] ^= cs->K[2];
+    P[3] ^= cs->K[3];
+    if (iv) {
+        P[0] ^= AV_RL32(iv);
+        P[1] ^= AV_RL32(iv + 4);
+        P[2] ^= AV_RL32(iv + 8);
+        P[3] ^= AV_RL32(iv + 12);
+        memcpy(iv, src, 16);
+    }
+    AV_WL32(dst, P[2]);
+    AV_WL32(dst + 4, P[3]);
+    AV_WL32(dst + 8, P[0]);
+    AV_WL32(dst + 12, P[1]);
+}
+
+av_cold int av_twofish_init(AVTWOFISH *cs, const uint8_t *key, int key_bits)
+{
+    int i;
+    uint8_t keypad[32];
+    uint32_t Key[8], Me[4], Mo[4], A, B;
+    const uint32_t rho = 0x01010101;
+    if (key_bits < 0)
+        return AVERROR(EINVAL);
+    if (key_bits <= 128) {
+        cs->ksize = 2;
+    } else if (key_bits <= 192) {
+        cs->ksize = 3;
+    } else {
+        cs->ksize = 4;
+    }
+    memset(keypad, 0, sizeof(keypad));
+    if (key_bits <= 256) {
+        memcpy(keypad, key, key_bits >> 3);
+    } else {
+        memcpy(keypad, key, 32);
+    }
+    for (i = 0; i < 2 * cs->ksize ; i++)
+        Key[i] = AV_RL32(keypad + 4 * i);
+    for (i = 0; i < cs->ksize; i++) {
+        Me[i] = Key[2 * i];
+        Mo[i] = Key[2 * i + 1];
+        cs->S[cs->ksize - i - 1] = tf_RS(Me[i], Mo[i]);
+    }
+    precomputeMDS(cs);
+    for (i = 0; i < 20; i++) {
+        A = tf_h((2 * i) * rho, Me, cs->ksize);
+        B = tf_h((2 * i + 1) * rho, Mo, cs->ksize);
+        B = LR(B, 8);
+        cs->K[2 * i] = A + B;
+        cs->K[2 * i + 1] = LR((A + (2 * B)), 9);
+    }
+    if (cs->ksize << 6 != key_bits) {
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+void av_twofish_crypt(AVTWOFISH *cs, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt)
+{
+    int i;
+    while (count--) {
+        if (decrypt) {
+            twofish_decrypt(cs, dst, src, iv);
+        } else {
+            if (iv) {
+                for (i = 0; i < 16; i++)
+                    dst[i] = src[i] ^ iv[i];
+                twofish_encrypt(cs, dst, dst);
+                memcpy(iv, dst, 16);
+            } else {
+                twofish_encrypt(cs, dst, src);
+            }
+        }
+        src = src + 16;
+        dst = dst + 16;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/twofish.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/twofish.h
new file mode 100644
index 000000000..813cfecdf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/twofish.h
@@ -0,0 +1,70 @@
+/*
+ * An implementation of the TwoFish algorithm
+ * Copyright (c) 2015 Supraja Meedinti
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_TWOFISH_H
+#define AVUTIL_TWOFISH_H
+
+#include <stdint.h>
+
+
+/**
+  * @file
+  * @brief Public header for libavutil TWOFISH algorithm
+  * @defgroup lavu_twofish TWOFISH
+  * @ingroup lavu_crypto
+  * @{
+  */
+
+extern const int av_twofish_size;
+
+struct AVTWOFISH;
+
+/**
+  * Allocate an AVTWOFISH context
+  * To free the struct: av_free(ptr)
+  */
+struct AVTWOFISH *av_twofish_alloc(void);
+
+/**
+  * Initialize an AVTWOFISH context.
+  *
+  * @param ctx an AVTWOFISH context
+  * @param key a key of size ranging from 1 to 32 bytes used for encryption/decryption
+  * @param key_bits number of keybits: 128, 192, 256 If less than the required, padded with zeroes to nearest valid value; return value is 0 if key_bits is 128/192/256, -1 if less than 0, 1 otherwise
+ */
+int av_twofish_init(struct AVTWOFISH *ctx, const uint8_t *key, int key_bits);
+
+/**
+  * Encrypt or decrypt a buffer using a previously initialized context
+  *
+  * @param ctx an AVTWOFISH context
+  * @param dst destination array, can be equal to src
+  * @param src source array, can be equal to dst
+  * @param count number of 16 byte blocks
+  * @paran iv initialization vector for CBC mode, NULL for ECB mode
+  * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_twofish_crypt(struct AVTWOFISH *ctx, uint8_t *dst, const uint8_t *src, int count, uint8_t* iv, int decrypt);
+
+/**
+ * @}
+ */
+#endif /* AVUTIL_TWOFISH_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tx.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tx.c
new file mode 100644
index 000000000..93f6e489d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tx.c
@@ -0,0 +1,803 @@
+/*
+ * Copyright (c) 2019 Lynne <dev@lynne.ee>
+ * Power of two FFT:
+ * Copyright (c) 2008 Loren Merritt
+ * Copyright (c) 2002 Fabrice Bellard
+ * Partly based on libdjbfft by D. J. Bernstein
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+#include "tx.h"
+#include "thread.h"
+#include "mem.h"
+#include "avassert.h"
+
+typedef float FFTSample;
+typedef AVComplexFloat FFTComplex;
+
+struct AVTXContext {
+    int n;              /* Nptwo part */
+    int m;              /* Ptwo part */
+
+    FFTComplex *exptab; /* MDCT exptab */
+    FFTComplex *tmp;    /* Temporary buffer needed for all compound transforms */
+    int        *pfatab; /* Input/Output mapping for compound transforms */
+    int        *revtab; /* Input mapping for power of two transforms */
+};
+
+#define FFT_NAME(x) x
+
+#define COSTABLE(size) \
+    static DECLARE_ALIGNED(32, FFTSample, FFT_NAME(ff_cos_##size))[size/2]
+
+static FFTSample * const FFT_NAME(ff_cos_tabs)[18];
+
+COSTABLE(16);
+COSTABLE(32);
+COSTABLE(64);
+COSTABLE(128);
+COSTABLE(256);
+COSTABLE(512);
+COSTABLE(1024);
+COSTABLE(2048);
+COSTABLE(4096);
+COSTABLE(8192);
+COSTABLE(16384);
+COSTABLE(32768);
+COSTABLE(65536);
+COSTABLE(131072);
+
+static av_cold void init_ff_cos_tabs(int index)
+{
+    int m = 1 << index;
+    double freq = 2*M_PI/m;
+    FFTSample *tab = FFT_NAME(ff_cos_tabs)[index];
+    for(int i = 0; i <= m/4; i++)
+        tab[i] = cos(i*freq);
+    for(int i = 1; i < m/4; i++)
+        tab[m/2 - i] = tab[i];
+}
+
+typedef struct CosTabsInitOnce {
+    void (*func)(void);
+    AVOnce control;
+} CosTabsInitOnce;
+
+#define INIT_FF_COS_TABS_FUNC(index, size)                                     \
+static av_cold void init_ff_cos_tabs_ ## size (void)                           \
+{                                                                              \
+    init_ff_cos_tabs(index);                                                   \
+}
+
+INIT_FF_COS_TABS_FUNC(4, 16)
+INIT_FF_COS_TABS_FUNC(5, 32)
+INIT_FF_COS_TABS_FUNC(6, 64)
+INIT_FF_COS_TABS_FUNC(7, 128)
+INIT_FF_COS_TABS_FUNC(8, 256)
+INIT_FF_COS_TABS_FUNC(9, 512)
+INIT_FF_COS_TABS_FUNC(10, 1024)
+INIT_FF_COS_TABS_FUNC(11, 2048)
+INIT_FF_COS_TABS_FUNC(12, 4096)
+INIT_FF_COS_TABS_FUNC(13, 8192)
+INIT_FF_COS_TABS_FUNC(14, 16384)
+INIT_FF_COS_TABS_FUNC(15, 32768)
+INIT_FF_COS_TABS_FUNC(16, 65536)
+INIT_FF_COS_TABS_FUNC(17, 131072)
+
+static CosTabsInitOnce cos_tabs_init_once[] = {
+    { NULL },
+    { NULL },
+    { NULL },
+    { NULL },
+    { init_ff_cos_tabs_16, AV_ONCE_INIT },
+    { init_ff_cos_tabs_32, AV_ONCE_INIT },
+    { init_ff_cos_tabs_64, AV_ONCE_INIT },
+    { init_ff_cos_tabs_128, AV_ONCE_INIT },
+    { init_ff_cos_tabs_256, AV_ONCE_INIT },
+    { init_ff_cos_tabs_512, AV_ONCE_INIT },
+    { init_ff_cos_tabs_1024, AV_ONCE_INIT },
+    { init_ff_cos_tabs_2048, AV_ONCE_INIT },
+    { init_ff_cos_tabs_4096, AV_ONCE_INIT },
+    { init_ff_cos_tabs_8192, AV_ONCE_INIT },
+    { init_ff_cos_tabs_16384, AV_ONCE_INIT },
+    { init_ff_cos_tabs_32768, AV_ONCE_INIT },
+    { init_ff_cos_tabs_65536, AV_ONCE_INIT },
+    { init_ff_cos_tabs_131072, AV_ONCE_INIT },
+};
+
+static FFTSample * const FFT_NAME(ff_cos_tabs)[] = {
+    NULL, NULL, NULL, NULL,
+    FFT_NAME(ff_cos_16),
+    FFT_NAME(ff_cos_32),
+    FFT_NAME(ff_cos_64),
+    FFT_NAME(ff_cos_128),
+    FFT_NAME(ff_cos_256),
+    FFT_NAME(ff_cos_512),
+    FFT_NAME(ff_cos_1024),
+    FFT_NAME(ff_cos_2048),
+    FFT_NAME(ff_cos_4096),
+    FFT_NAME(ff_cos_8192),
+    FFT_NAME(ff_cos_16384),
+    FFT_NAME(ff_cos_32768),
+    FFT_NAME(ff_cos_65536),
+    FFT_NAME(ff_cos_131072),
+};
+
+static av_cold void ff_init_ff_cos_tabs(int index)
+{
+    ff_thread_once(&cos_tabs_init_once[index].control,
+                    cos_tabs_init_once[index].func);
+}
+
+static AVOnce tabs_53_once = AV_ONCE_INIT;
+static DECLARE_ALIGNED(32, FFTComplex, FFT_NAME(ff_53_tabs))[4];
+
+static av_cold void ff_init_53_tabs(void)
+{
+    ff_53_tabs[0] = (FFTComplex){ cos(2 * M_PI / 12), cos(2 * M_PI / 12) };
+    ff_53_tabs[1] = (FFTComplex){ 0.5, 0.5 };
+    ff_53_tabs[2] = (FFTComplex){ cos(2 * M_PI /  5), sin(2 * M_PI /  5) };
+    ff_53_tabs[3] = (FFTComplex){ cos(2 * M_PI / 10), sin(2 * M_PI / 10) };
+}
+
+#define BF(x, y, a, b) do {                                                    \
+        x = (a) - (b);                                                         \
+        y = (a) + (b);                                                         \
+    } while (0)
+
+#define CMUL(dre, dim, are, aim, bre, bim) do {                                \
+        (dre) = (are) * (bre) - (aim) * (bim);                                 \
+        (dim) = (are) * (bim) + (aim) * (bre);                                 \
+    } while (0)
+
+#define CMUL3(c, a, b) CMUL((c).re, (c).im, (a).re, (a).im, (b).re, (b).im)
+
+static av_always_inline void fft3(FFTComplex *out, FFTComplex *in,
+                                  ptrdiff_t stride)
+{
+    FFTComplex tmp[2];
+
+    tmp[0].re = in[1].im - in[2].im;
+    tmp[0].im = in[1].re - in[2].re;
+    tmp[1].re = in[1].re + in[2].re;
+    tmp[1].im = in[1].im + in[2].im;
+
+    out[0*stride].re = in[0].re + tmp[1].re;
+    out[0*stride].im = in[0].im + tmp[1].im;
+
+    tmp[0].re *= ff_53_tabs[0].re;
+    tmp[0].im *= ff_53_tabs[0].im;
+    tmp[1].re *= ff_53_tabs[1].re;
+    tmp[1].im *= ff_53_tabs[1].re;
+
+    out[1*stride].re = in[0].re - tmp[1].re + tmp[0].re;
+    out[1*stride].im = in[0].im - tmp[1].im - tmp[0].im;
+    out[2*stride].re = in[0].re - tmp[1].re - tmp[0].re;
+    out[2*stride].im = in[0].im - tmp[1].im + tmp[0].im;
+}
+
+#define DECL_FFT5(NAME, D0, D1, D2, D3, D4)                                    \
+static av_always_inline void NAME(FFTComplex *out, FFTComplex *in,             \
+                                  ptrdiff_t stride)                            \
+{                                                                              \
+    FFTComplex z0[4], t[6];                                                    \
+                                                                               \
+    t[0].re = in[1].re + in[4].re;                                             \
+    t[0].im = in[1].im + in[4].im;                                             \
+    t[1].im = in[1].re - in[4].re;                                             \
+    t[1].re = in[1].im - in[4].im;                                             \
+    t[2].re = in[2].re + in[3].re;                                             \
+    t[2].im = in[2].im + in[3].im;                                             \
+    t[3].im = in[2].re - in[3].re;                                             \
+    t[3].re = in[2].im - in[3].im;                                             \
+                                                                               \
+    out[D0*stride].re = in[0].re + in[1].re + in[2].re +                       \
+                        in[3].re + in[4].re;                                   \
+    out[D0*stride].im = in[0].im + in[1].im + in[2].im +                       \
+                        in[3].im + in[4].im;                                   \
+                                                                               \
+    t[4].re = ff_53_tabs[2].re * t[2].re - ff_53_tabs[3].re * t[0].re;         \
+    t[4].im = ff_53_tabs[2].re * t[2].im - ff_53_tabs[3].re * t[0].im;         \
+    t[0].re = ff_53_tabs[2].re * t[0].re - ff_53_tabs[3].re * t[2].re;         \
+    t[0].im = ff_53_tabs[2].re * t[0].im - ff_53_tabs[3].re * t[2].im;         \
+    t[5].re = ff_53_tabs[2].im * t[3].re - ff_53_tabs[3].im * t[1].re;         \
+    t[5].im = ff_53_tabs[2].im * t[3].im - ff_53_tabs[3].im * t[1].im;         \
+    t[1].re = ff_53_tabs[2].im * t[1].re + ff_53_tabs[3].im * t[3].re;         \
+    t[1].im = ff_53_tabs[2].im * t[1].im + ff_53_tabs[3].im * t[3].im;         \
+                                                                               \
+    z0[0].re = t[0].re - t[1].re;                                              \
+    z0[0].im = t[0].im - t[1].im;                                              \
+    z0[1].re = t[4].re + t[5].re;                                              \
+    z0[1].im = t[4].im + t[5].im;                                              \
+                                                                               \
+    z0[2].re = t[4].re - t[5].re;                                              \
+    z0[2].im = t[4].im - t[5].im;                                              \
+    z0[3].re = t[0].re + t[1].re;                                              \
+    z0[3].im = t[0].im + t[1].im;                                              \
+                                                                               \
+    out[D1*stride].re = in[0].re + z0[3].re;                                   \
+    out[D1*stride].im = in[0].im + z0[0].im;                                   \
+    out[D2*stride].re = in[0].re + z0[2].re;                                   \
+    out[D2*stride].im = in[0].im + z0[1].im;                                   \
+    out[D3*stride].re = in[0].re + z0[1].re;                                   \
+    out[D3*stride].im = in[0].im + z0[2].im;                                   \
+    out[D4*stride].re = in[0].re + z0[0].re;                                   \
+    out[D4*stride].im = in[0].im + z0[3].im;                                   \
+}
+
+DECL_FFT5(fft5,     0,  1,  2,  3,  4)
+DECL_FFT5(fft5_m1,  0,  6, 12,  3,  9)
+DECL_FFT5(fft5_m2, 10,  1,  7, 13,  4)
+DECL_FFT5(fft5_m3,  5, 11,  2,  8, 14)
+
+static av_always_inline void fft15(FFTComplex *out, FFTComplex *in,
+                                   ptrdiff_t stride)
+{
+    FFTComplex tmp[15];
+
+    for (int i = 0; i < 5; i++)
+        fft3(tmp + i, in + i*3, 5);
+
+    fft5_m1(out, tmp +  0, stride);
+    fft5_m2(out, tmp +  5, stride);
+    fft5_m3(out, tmp + 10, stride);
+}
+
+#define BUTTERFLIES(a0,a1,a2,a3) {\
+    BF(t3, t5, t5, t1);\
+    BF(a2.re, a0.re, a0.re, t5);\
+    BF(a3.im, a1.im, a1.im, t3);\
+    BF(t4, t6, t2, t6);\
+    BF(a3.re, a1.re, a1.re, t4);\
+    BF(a2.im, a0.im, a0.im, t6);\
+}
+
+// force loading all the inputs before storing any.
+// this is slightly slower for small data, but avoids store->load aliasing
+// for addresses separated by large powers of 2.
+#define BUTTERFLIES_BIG(a0,a1,a2,a3) {\
+    FFTSample r0=a0.re, i0=a0.im, r1=a1.re, i1=a1.im;\
+    BF(t3, t5, t5, t1);\
+    BF(a2.re, a0.re, r0, t5);\
+    BF(a3.im, a1.im, i1, t3);\
+    BF(t4, t6, t2, t6);\
+    BF(a3.re, a1.re, r1, t4);\
+    BF(a2.im, a0.im, i0, t6);\
+}
+
+#define TRANSFORM(a0,a1,a2,a3,wre,wim) {\
+    CMUL(t1, t2, a2.re, a2.im, wre, -wim);\
+    CMUL(t5, t6, a3.re, a3.im, wre,  wim);\
+    BUTTERFLIES(a0,a1,a2,a3)\
+}
+
+#define TRANSFORM_ZERO(a0,a1,a2,a3) {\
+    t1 = a2.re;\
+    t2 = a2.im;\
+    t5 = a3.re;\
+    t6 = a3.im;\
+    BUTTERFLIES(a0,a1,a2,a3)\
+}
+
+/* z[0...8n-1], w[1...2n-1] */
+#define PASS(name)\
+static void name(FFTComplex *z, const FFTSample *wre, unsigned int n)\
+{\
+    FFTSample t1, t2, t3, t4, t5, t6;\
+    int o1 = 2*n;\
+    int o2 = 4*n;\
+    int o3 = 6*n;\
+    const FFTSample *wim = wre+o1;\
+    n--;\
+\
+    TRANSFORM_ZERO(z[0],z[o1],z[o2],z[o3]);\
+    TRANSFORM(z[1],z[o1+1],z[o2+1],z[o3+1],wre[1],wim[-1]);\
+    do {\
+        z += 2;\
+        wre += 2;\
+        wim -= 2;\
+        TRANSFORM(z[0],z[o1],z[o2],z[o3],wre[0],wim[0]);\
+        TRANSFORM(z[1],z[o1+1],z[o2+1],z[o3+1],wre[1],wim[-1]);\
+    } while(--n);\
+}
+
+PASS(pass)
+#undef BUTTERFLIES
+#define BUTTERFLIES BUTTERFLIES_BIG
+PASS(pass_big)
+
+#define DECL_FFT(n,n2,n4)\
+static void fft##n(FFTComplex *z)\
+{\
+    fft##n2(z);\
+    fft##n4(z+n4*2);\
+    fft##n4(z+n4*3);\
+    pass(z,FFT_NAME(ff_cos_##n),n4/2);\
+}
+
+static void fft4(FFTComplex *z)
+{
+    FFTSample t1, t2, t3, t4, t5, t6, t7, t8;
+
+    BF(t3, t1, z[0].re, z[1].re);
+    BF(t8, t6, z[3].re, z[2].re);
+    BF(z[2].re, z[0].re, t1, t6);
+    BF(t4, t2, z[0].im, z[1].im);
+    BF(t7, t5, z[2].im, z[3].im);
+    BF(z[3].im, z[1].im, t4, t8);
+    BF(z[3].re, z[1].re, t3, t7);
+    BF(z[2].im, z[0].im, t2, t5);
+}
+
+static void fft8(FFTComplex *z)
+{
+    FFTSample t1, t2, t3, t4, t5, t6;
+
+    fft4(z);
+
+    BF(t1, z[5].re, z[4].re, -z[5].re);
+    BF(t2, z[5].im, z[4].im, -z[5].im);
+    BF(t5, z[7].re, z[6].re, -z[7].re);
+    BF(t6, z[7].im, z[6].im, -z[7].im);
+
+    BUTTERFLIES(z[0],z[2],z[4],z[6]);
+    TRANSFORM(z[1],z[3],z[5],z[7],M_SQRT1_2,M_SQRT1_2);
+}
+
+static void fft16(FFTComplex *z)
+{
+    FFTSample t1, t2, t3, t4, t5, t6;
+    FFTSample cos_16_1 = FFT_NAME(ff_cos_16)[1];
+    FFTSample cos_16_3 = FFT_NAME(ff_cos_16)[3];
+
+    fft8(z);
+    fft4(z+8);
+    fft4(z+12);
+
+    TRANSFORM_ZERO(z[0],z[4],z[8],z[12]);
+    TRANSFORM(z[2],z[6],z[10],z[14],M_SQRT1_2,M_SQRT1_2);
+    TRANSFORM(z[1],z[5],z[9],z[13],cos_16_1,cos_16_3);
+    TRANSFORM(z[3],z[7],z[11],z[15],cos_16_3,cos_16_1);
+}
+
+DECL_FFT(32,16,8)
+DECL_FFT(64,32,16)
+DECL_FFT(128,64,32)
+DECL_FFT(256,128,64)
+DECL_FFT(512,256,128)
+#define pass pass_big
+DECL_FFT(1024,512,256)
+DECL_FFT(2048,1024,512)
+DECL_FFT(4096,2048,1024)
+DECL_FFT(8192,4096,2048)
+DECL_FFT(16384,8192,4096)
+DECL_FFT(32768,16384,8192)
+DECL_FFT(65536,32768,16384)
+DECL_FFT(131072,65536,32768)
+
+static void (* const fft_dispatch[])(FFTComplex*) = {
+    fft4, fft8, fft16, fft32, fft64, fft128, fft256, fft512, fft1024,
+    fft2048, fft4096, fft8192, fft16384, fft32768, fft65536, fft131072
+};
+
+#define DECL_COMP_FFT(N)                                                       \
+static void compound_fft_##N##xM(AVTXContext *s, void *_out,                   \
+                                 void *_in, ptrdiff_t stride)                  \
+{                                                                              \
+    const int m = s->m, *in_map = s->pfatab, *out_map = in_map + N*m;          \
+    FFTComplex *in = _in;                                                      \
+    FFTComplex *out = _out;                                                    \
+    FFTComplex fft##N##in[N];                                                  \
+    void (*fftp)(FFTComplex *z) = fft_dispatch[av_log2(m) - 2];                \
+                                                                               \
+    for (int i = 0; i < m; i++) {                                              \
+        for (int j = 0; j < N; j++)                                            \
+            fft##N##in[j] = in[in_map[i*N + j]];                               \
+        fft##N(s->tmp + s->revtab[i], fft##N##in, m);                          \
+    }                                                                          \
+                                                                               \
+    for (int i = 0; i < N; i++)                                                \
+        fftp(s->tmp + m*i);                                                    \
+                                                                               \
+    for (int i = 0; i < N*m; i++)                                              \
+        out[i] = s->tmp[out_map[i]];                                           \
+}
+
+DECL_COMP_FFT(3)
+DECL_COMP_FFT(5)
+DECL_COMP_FFT(15)
+
+static void monolithic_fft(AVTXContext *s, void *_out, void *_in,
+                           ptrdiff_t stride)
+{
+    FFTComplex *in = _in;
+    FFTComplex *out = _out;
+    int m = s->m, mb = av_log2(m) - 2;
+    for (int i = 0; i < m; i++)
+        out[s->revtab[i]] = in[i];
+    fft_dispatch[mb](out);
+}
+
+#define DECL_COMP_IMDCT(N)                                                     \
+static void compound_imdct_##N##xM(AVTXContext *s, void *_dst, void *_src,     \
+                                   ptrdiff_t stride)                           \
+{                                                                              \
+    FFTComplex fft##N##in[N];                                                  \
+    FFTComplex *z = _dst, *exp = s->exptab;                                    \
+    const int m = s->m, len8 = N*m >> 1;                                       \
+    const int *in_map = s->pfatab, *out_map = in_map + N*m;                    \
+    const float *src = _src, *in1, *in2;                                       \
+    void (*fftp)(FFTComplex *) = fft_dispatch[av_log2(m) - 2];                 \
+                                                                               \
+    stride /= sizeof(*src); /* To convert it from bytes */                     \
+    in1 = src;                                                                 \
+    in2 = src + ((N*m*2) - 1) * stride;                                        \
+                                                                               \
+    for (int i = 0; i < m; i++) {                                              \
+        for (int j = 0; j < N; j++) {                                          \
+            const int k = in_map[i*N + j];                                     \
+            FFTComplex tmp = { in2[-k*stride], in1[k*stride] };                \
+            CMUL3(fft##N##in[j], tmp, exp[k >> 1]);                            \
+        }                                                                      \
+        fft##N(s->tmp + s->revtab[i], fft##N##in, m);                          \
+    }                                                                          \
+                                                                               \
+    for (int i = 0; i < N; i++)                                                \
+        fftp(s->tmp + m*i);                                                    \
+                                                                               \
+    for (int i = 0; i < len8; i++) {                                           \
+        const int i0 = len8 + i, i1 = len8 - i - 1;                            \
+        const int s0 = out_map[i0], s1 = out_map[i1];                          \
+        FFTComplex src1 = { s->tmp[s1].im, s->tmp[s1].re };                    \
+        FFTComplex src0 = { s->tmp[s0].im, s->tmp[s0].re };                    \
+                                                                               \
+        CMUL(z[i1].re, z[i0].im, src1.re, src1.im, exp[i1].im, exp[i1].re);    \
+        CMUL(z[i0].re, z[i1].im, src0.re, src0.im, exp[i0].im, exp[i0].re);    \
+    }                                                                          \
+}
+
+DECL_COMP_IMDCT(3)
+DECL_COMP_IMDCT(5)
+DECL_COMP_IMDCT(15)
+
+#define DECL_COMP_MDCT(N)                                                      \
+static void compound_mdct_##N##xM(AVTXContext *s, void *_dst, void *_src,      \
+                                  ptrdiff_t stride)                            \
+{                                                                              \
+    float *src = _src, *dst = _dst;                                            \
+    FFTComplex *exp = s->exptab, tmp, fft##N##in[N];                           \
+    const int m = s->m, len4 = N*m, len3 = len4 * 3, len8 = len4 >> 1;         \
+    const int *in_map = s->pfatab, *out_map = in_map + N*m;                    \
+    void (*fftp)(FFTComplex *) = fft_dispatch[av_log2(m) - 2];                 \
+                                                                               \
+    stride /= sizeof(*dst);                                                    \
+                                                                               \
+    for (int i = 0; i < m; i++) { /* Folding and pre-reindexing */             \
+        for (int j = 0; j < N; j++) {                                          \
+            const int k = in_map[i*N + j];                                     \
+            if (k < len4) {                                                    \
+                tmp.re = -src[ len4 + k] + src[1*len4 - 1 - k];                \
+                tmp.im = -src[ len3 + k] - src[1*len3 - 1 - k];                \
+            } else {                                                           \
+                tmp.re = -src[ len4 + k] - src[5*len4 - 1 - k];                \
+                tmp.im =  src[-len4 + k] - src[1*len3 - 1 - k];                \
+            }                                                                  \
+            CMUL(fft##N##in[j].im, fft##N##in[j].re, tmp.re, tmp.im,           \
+                 exp[k >> 1].re, exp[k >> 1].im);                              \
+        }                                                                      \
+        fft##N(s->tmp + s->revtab[i], fft##N##in, m);                          \
+    }                                                                          \
+                                                                               \
+    for (int i = 0; i < N; i++)                                                \
+        fftp(s->tmp + m*i);                                                    \
+                                                                               \
+    for (int i = 0; i < len8; i++) {                                           \
+        const int i0 = len8 + i, i1 = len8 - i - 1;                            \
+        const int s0 = out_map[i0], s1 = out_map[i1];                          \
+        FFTComplex src1 = { s->tmp[s1].re, s->tmp[s1].im };                    \
+        FFTComplex src0 = { s->tmp[s0].re, s->tmp[s0].im };                    \
+                                                                               \
+        CMUL(dst[2*i1*stride + stride], dst[2*i0*stride], src0.re, src0.im,    \
+             exp[i0].im, exp[i0].re);                                          \
+        CMUL(dst[2*i0*stride + stride], dst[2*i1*stride], src1.re, src1.im,    \
+             exp[i1].im, exp[i1].re);                                          \
+    }                                                                          \
+}
+
+DECL_COMP_MDCT(3)
+DECL_COMP_MDCT(5)
+DECL_COMP_MDCT(15)
+
+static void monolithic_imdct(AVTXContext *s, void *_dst, void *_src,
+                             ptrdiff_t stride)
+{
+    FFTComplex *z = _dst, *exp = s->exptab;
+    const int m = s->m, len8 = m >> 1;
+    const float *src = _src, *in1, *in2;
+    void (*fftp)(FFTComplex *) = fft_dispatch[av_log2(m) - 2];
+
+    stride /= sizeof(*src);
+    in1 = src;
+    in2 = src + ((m*2) - 1) * stride;
+
+    for (int i = 0; i < m; i++) {
+        FFTComplex tmp = { in2[-2*i*stride], in1[2*i*stride] };
+        CMUL3(z[s->revtab[i]], tmp, exp[i]);
+    }
+
+    fftp(z);
+
+    for (int i = 0; i < len8; i++) {
+        const int i0 = len8 + i, i1 = len8 - i - 1;
+        FFTComplex src1 = { z[i1].im, z[i1].re };
+        FFTComplex src0 = { z[i0].im, z[i0].re };
+
+        CMUL(z[i1].re, z[i0].im, src1.re, src1.im, exp[i1].im, exp[i1].re);
+        CMUL(z[i0].re, z[i1].im, src0.re, src0.im, exp[i0].im, exp[i0].re);
+    }
+}
+
+static void monolithic_mdct(AVTXContext *s, void *_dst, void *_src,
+                            ptrdiff_t stride)
+{
+    float *src = _src, *dst = _dst;
+    FFTComplex *exp = s->exptab, tmp, *z = _dst;
+    const int m = s->m, len4 = m, len3 = len4 * 3, len8 = len4 >> 1;
+    void (*fftp)(FFTComplex *) = fft_dispatch[av_log2(m) - 2];
+
+    stride /= sizeof(*dst);
+
+    for (int i = 0; i < m; i++) { /* Folding and pre-reindexing */
+        const int k = 2*i;
+        if (k < len4) {
+            tmp.re = -src[ len4 + k] + src[1*len4 - 1 - k];
+            tmp.im = -src[ len3 + k] - src[1*len3 - 1 - k];
+        } else {
+            tmp.re = -src[ len4 + k] - src[5*len4 - 1 - k];
+            tmp.im =  src[-len4 + k] - src[1*len3 - 1 - k];
+        }
+        CMUL(z[s->revtab[i]].im, z[s->revtab[i]].re, tmp.re, tmp.im,
+             exp[i].re, exp[i].im);
+    }
+
+    fftp(z);
+
+    for (int i = 0; i < len8; i++) {
+        const int i0 = len8 + i, i1 = len8 - i - 1;
+        FFTComplex src1 = { z[i1].re, z[i1].im };
+        FFTComplex src0 = { z[i0].re, z[i0].im };
+
+        CMUL(dst[2*i1*stride + stride], dst[2*i0*stride], src0.re, src0.im,
+             exp[i0].im, exp[i0].re);
+        CMUL(dst[2*i0*stride + stride], dst[2*i1*stride], src1.re, src1.im,
+             exp[i1].im, exp[i1].re);
+    }
+}
+
+/* Calculates the modular multiplicative inverse, not fast, replace */
+static int mulinv(int n, int m)
+{
+    n = n % m;
+    for (int x = 1; x < m; x++)
+        if (((n * x) % m) == 1)
+            return x;
+    av_assert0(0); /* Never reached */
+}
+
+/* Guaranteed to work for any n, m where gcd(n, m) == 1 */
+static int gen_compound_mapping(AVTXContext *s, int n, int m, int inv,
+                                enum AVTXType type)
+{
+    int *in_map, *out_map;
+    const int len   = n*m;
+    const int m_inv = mulinv(m, n);
+    const int n_inv = mulinv(n, m);
+    const int mdct  = type == AV_TX_FLOAT_MDCT;
+
+    if (!(s->pfatab = av_malloc(2*len*sizeof(*s->pfatab))))
+        return AVERROR(ENOMEM);
+
+    in_map  = s->pfatab;
+    out_map = s->pfatab + n*m;
+
+    /* Ruritanian map for input, CRT map for output, can be swapped */
+    for (int j = 0; j < m; j++) {
+        for (int i = 0; i < n; i++) {
+            /* Shifted by 1 to simplify forward MDCTs */
+            in_map[j*n + i] = ((i*m + j*n) % len) << mdct;
+            out_map[(i*m*m_inv + j*n*n_inv) % len] = i*m + j;
+        }
+    }
+
+    /* Change transform direction by reversing all ACs */
+    if (inv) {
+        for (int i = 0; i < m; i++) {
+            int *in = &in_map[i*n + 1]; /* Skip the DC */
+            for (int j = 0; j < ((n - 1) >> 1); j++)
+                FFSWAP(int, in[j], in[n - j - 2]);
+        }
+    }
+
+    /* Our 15-point transform is also a compound one, so embed its input map */
+    if (n == 15) {
+        for (int k = 0; k < m; k++) {
+            int tmp[15];
+            memcpy(tmp, &in_map[k*15], 15*sizeof(*tmp));
+            for (int i = 0; i < 5; i++) {
+                for (int j = 0; j < 3; j++)
+                    in_map[k*15 + i*3 + j] = tmp[(i*3 + j*5) % 15];
+            }
+        }
+    }
+
+    return 0;
+}
+
+static int split_radix_permutation(int i, int n, int inverse)
+{
+    int m;
+    if (n <= 2)
+        return i & 1;
+    m = n >> 1;
+    if (!(i & m))
+        return split_radix_permutation(i, m, inverse)*2;
+    m >>= 1;
+    if (inverse == !(i & m))
+        return split_radix_permutation(i, m, inverse)*4 + 1;
+    else
+        return split_radix_permutation(i, m, inverse)*4 - 1;
+}
+
+static int get_ptwo_revtab(AVTXContext *s, int m, int inv)
+{
+    if (!(s->revtab = av_malloc(m*sizeof(*s->revtab))))
+        return AVERROR(ENOMEM);
+
+    /* Default */
+    for (int i = 0; i < m; i++) {
+        int k = -split_radix_permutation(i, m, inv) & (m - 1);
+        s->revtab[k] = i;
+    }
+
+    return 0;
+}
+
+static int gen_mdct_exptab(AVTXContext *s, int len4, double scale)
+{
+    const double theta = (scale < 0 ? len4 : 0) + 1.0/8.0;
+
+    if (!(s->exptab = av_malloc_array(len4, sizeof(*s->exptab))))
+        return AVERROR(ENOMEM);
+
+    scale = sqrt(fabs(scale));
+    for (int i = 0; i < len4; i++) {
+        const double alpha = M_PI_2 * (i + theta) / len4;
+        s->exptab[i].re = cos(alpha) * scale;
+        s->exptab[i].im = sin(alpha) * scale;
+    }
+
+    return 0;
+}
+
+av_cold void av_tx_uninit(AVTXContext **ctx)
+{
+    if (!(*ctx))
+        return;
+
+    av_free((*ctx)->pfatab);
+    av_free((*ctx)->exptab);
+    av_free((*ctx)->revtab);
+    av_free((*ctx)->tmp);
+
+    av_freep(ctx);
+}
+
+static int init_mdct_fft(AVTXContext *s, av_tx_fn *tx, enum AVTXType type,
+                         int inv, int len, const void *scale, uint64_t flags)
+{
+    int err, n = 1, m = 1, max_ptwo = 1 << (FF_ARRAY_ELEMS(fft_dispatch) + 1);
+
+    if (type == AV_TX_FLOAT_MDCT)
+        len >>= 1;
+
+#define CHECK_FACTOR(DST, FACTOR, SRC)                                         \
+    if (DST == 1 && !(SRC % FACTOR)) {                                         \
+        DST = FACTOR;                                                          \
+        SRC /= FACTOR;                                                         \
+    }
+    CHECK_FACTOR(n, 15, len)
+    CHECK_FACTOR(n,  5, len)
+    CHECK_FACTOR(n,  3, len)
+#undef CHECK_NPTWO_FACTOR
+
+    /* len must be a power of two now */
+    if (!(len & (len - 1)) && len >= 4 && len <= max_ptwo) {
+        m = len;
+        len = 1;
+    }
+
+    /* Filter out direct 3, 5 and 15 transforms, too niche */
+    if (len > 1 || m == 1) {
+        av_log(NULL, AV_LOG_ERROR, "Unsupported transform size: n = %i, "
+               "m = %i, residual = %i!\n", n, m, len);
+        return AVERROR(EINVAL);
+    } else if (n > 1 && m > 1) { /* 2D transform case */
+        if ((err = gen_compound_mapping(s, n, m, inv, type)))
+            return err;
+        if (!(s->tmp = av_malloc(n*m*sizeof(*s->tmp))))
+            return AVERROR(ENOMEM);
+        *tx = n == 3 ? compound_fft_3xM :
+              n == 5 ? compound_fft_5xM :
+                       compound_fft_15xM;
+        if (type == AV_TX_FLOAT_MDCT)
+            *tx = n == 3 ? inv ? compound_imdct_3xM  : compound_mdct_3xM :
+                  n == 5 ? inv ? compound_imdct_5xM  : compound_mdct_5xM :
+                           inv ? compound_imdct_15xM : compound_mdct_15xM;
+    } else { /* Direct transform case */
+        *tx = monolithic_fft;
+        if (type == AV_TX_FLOAT_MDCT)
+            *tx = inv ? monolithic_imdct : monolithic_mdct;
+    }
+
+    if (n != 1)
+        ff_thread_once(&tabs_53_once, ff_init_53_tabs);
+    if (m != 1) {
+        get_ptwo_revtab(s, m, inv);
+        for (int i = 4; i <= av_log2(m); i++)
+            ff_init_ff_cos_tabs(i);
+    }
+
+    if (type == AV_TX_FLOAT_MDCT)
+        if ((err = gen_mdct_exptab(s, n*m, *((float *)scale))))
+            return err;
+
+    s->n = n;
+    s->m = m;
+
+    return 0;
+}
+
+av_cold int av_tx_init(AVTXContext **ctx, av_tx_fn *tx, enum AVTXType type,
+                       int inv, int len, const void *scale, uint64_t flags)
+{
+    int err;
+    AVTXContext *s = av_mallocz(sizeof(*s));
+    if (!s)
+        return AVERROR(ENOMEM);
+
+    switch (type) {
+    case AV_TX_FLOAT_FFT:
+    case AV_TX_FLOAT_MDCT:
+        if ((err = init_mdct_fft(s, tx, type, inv, len, scale, flags)))
+            goto fail;
+        break;
+    default:
+        err = AVERROR(EINVAL);
+        goto fail;
+    }
+
+    *ctx = s;
+
+    return 0;
+
+fail:
+    av_tx_uninit(&s);
+    *tx = NULL;
+    return err;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tx.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tx.h
new file mode 100644
index 000000000..b1f2d9635
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/tx.h
@@ -0,0 +1,81 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_TX_H
+#define AVUTIL_TX_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+typedef struct AVTXContext AVTXContext;
+
+typedef struct AVComplexFloat {
+    float re, im;
+} AVComplexFloat;
+
+enum AVTXType {
+    /**
+     * Standard complex to complex FFT with sample data type AVComplexFloat.
+     * Scaling currently unsupported
+     */
+    AV_TX_FLOAT_FFT = 0,
+    /**
+     * Standard MDCT with sample data type of float and a scale type of
+     * float. Length is the frame size, not the window size (which is 2x frame)
+     */
+    AV_TX_FLOAT_MDCT = 1,
+};
+
+/**
+ * Function pointer to a function to perform the transform.
+ *
+ * @note Using a different context than the one allocated during av_tx_init()
+ * is not allowed.
+ *
+ * @param s the transform context
+ * @param out the output array
+ * @param in the input array
+ * @param stride the input or output stride (depending on transform direction)
+ * in bytes, currently implemented for all MDCT transforms
+ */
+typedef void (*av_tx_fn)(AVTXContext *s, void *out, void *in, ptrdiff_t stride);
+
+/**
+ * Initialize a transform context with the given configuration
+ * Currently power of two lengths from 4 to 131072 are supported, along with
+ * any length decomposable to a power of two and either 3, 5 or 15.
+ *
+ * @param ctx the context to allocate, will be NULL on error
+ * @param tx pointer to the transform function pointer to set
+ * @param type type the type of transform
+ * @param inv whether to do an inverse or a forward transform
+ * @param len the size of the transform in samples
+ * @param scale pointer to the value to scale the output if supported by type
+ * @param flags currently unused
+ *
+ * @return 0 on success, negative error code on failure
+ */
+int av_tx_init(AVTXContext **ctx, av_tx_fn *tx, enum AVTXType type,
+               int inv, int len, const void *scale, uint64_t flags);
+
+/**
+ * Frees a context and sets ctx to NULL, does nothing when ctx == NULL
+ */
+void av_tx_uninit(AVTXContext **ctx);
+
+#endif /* AVUTIL_TX_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/utils.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/utils.c
new file mode 100644
index 000000000..230081ea4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/utils.c
@@ -0,0 +1,160 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "avutil.h"
+#include "avassert.h"
+#include "samplefmt.h"
+#include "internal.h"
+
+/**
+ * @file
+ * various utility functions
+ */
+
+#include "libavutil/ffversion.h"
+const char av_util_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
+const char *av_version_info(void)
+{
+    return FFMPEG_VERSION;
+}
+
+unsigned avutil_version(void)
+{
+    static int checks_done;
+    if (checks_done)
+        return LIBAVUTIL_VERSION_INT;
+
+    av_assert0(AV_SAMPLE_FMT_DBLP == 9);
+    av_assert0(AVMEDIA_TYPE_ATTACHMENT == 4);
+    av_assert0(AV_PICTURE_TYPE_BI == 7);
+    av_assert0(LIBAVUTIL_VERSION_MICRO >= 100);
+    av_assert0(HAVE_MMX2 == HAVE_MMXEXT);
+
+    av_assert0(((size_t)-1) > 0); // C guarantees this but if false on a platform we care about revert at least b284e1ffe343d6697fb950d1ee517bafda8a9844
+
+    if (av_sat_dadd32(1, 2) != 5) {
+        av_log(NULL, AV_LOG_FATAL, "Libavutil has been built with a broken binutils, please upgrade binutils and rebuild\n");
+        abort();
+    }
+
+    if (llrint(1LL<<60) != 1LL<<60) {
+        av_log(NULL, AV_LOG_ERROR, "Libavutil has been linked to a broken llrint()\n");
+    }
+
+    checks_done = 1;
+    return LIBAVUTIL_VERSION_INT;
+}
+
+const char *avutil_configuration(void)
+{
+    return FFMPEG_CONFIGURATION;
+}
+
+const char *avutil_license(void)
+{
+#define LICENSE_PREFIX "libavutil license: "
+    return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+}
+
+const char *av_get_media_type_string(enum AVMediaType media_type)
+{
+    switch (media_type) {
+    case AVMEDIA_TYPE_VIDEO:      return "video";
+    case AVMEDIA_TYPE_AUDIO:      return "audio";
+    case AVMEDIA_TYPE_DATA:       return "data";
+    case AVMEDIA_TYPE_SUBTITLE:   return "subtitle";
+    case AVMEDIA_TYPE_ATTACHMENT: return "attachment";
+    default:                      return NULL;
+    }
+}
+
+char av_get_picture_type_char(enum AVPictureType pict_type)
+{
+    switch (pict_type) {
+    case AV_PICTURE_TYPE_I:  return 'I';
+    case AV_PICTURE_TYPE_P:  return 'P';
+    case AV_PICTURE_TYPE_B:  return 'B';
+    case AV_PICTURE_TYPE_S:  return 'S';
+    case AV_PICTURE_TYPE_SI: return 'i';
+    case AV_PICTURE_TYPE_SP: return 'p';
+    case AV_PICTURE_TYPE_BI: return 'b';
+    default:                 return '?';
+    }
+}
+
+unsigned av_int_list_length_for_size(unsigned elsize,
+                                     const void *list, uint64_t term)
+{
+    unsigned i;
+
+    if (!list)
+        return 0;
+#define LIST_LENGTH(type) \
+    { type t = term, *l = (type *)list; for (i = 0; l[i] != t; i++); }
+    switch (elsize) {
+    case 1: LIST_LENGTH(uint8_t);  break;
+    case 2: LIST_LENGTH(uint16_t); break;
+    case 4: LIST_LENGTH(uint32_t); break;
+    case 8: LIST_LENGTH(uint64_t); break;
+    default: av_assert0(!"valid element size");
+    }
+    return i;
+}
+
+char *av_fourcc_make_string(char *buf, uint32_t fourcc)
+{
+    int i;
+    char *orig_buf = buf;
+    size_t buf_size = AV_FOURCC_MAX_STRING_SIZE;
+
+    for (i = 0; i < 4; i++) {
+        const int c = fourcc & 0xff;
+        const int print_chr = (c >= '0' && c <= '9') ||
+                              (c >= 'a' && c <= 'z') ||
+                              (c >= 'A' && c <= 'Z') ||
+                              (c && strchr(". -_", c));
+        const int len = snprintf(buf, buf_size, print_chr ? "%c" : "[%d]", c);
+        if (len < 0)
+            break;
+        buf += len;
+        buf_size = buf_size > len ? buf_size - len : 0;
+        fourcc >>= 8;
+    }
+
+    return orig_buf;
+}
+
+AVRational av_get_time_base_q(void)
+{
+    return (AVRational){1, AV_TIME_BASE};
+}
+
+void av_assert0_fpu(void) {
+#if HAVE_MMX_INLINE
+    uint16_t state[14];
+     __asm__ volatile (
+        "fstenv %0 \n\t"
+        : "+m" (state)
+        :
+        : "memory"
+    );
+    av_assert0((state[4] & 3) == 3);
+#endif
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/version.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/version.h
new file mode 100644
index 000000000..24ca8ab7d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/version.h
@@ -0,0 +1,139 @@
+/*
+ * copyright (c) 2003 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @ingroup lavu
+ * Libavutil version macros
+ */
+
+#ifndef AVUTIL_VERSION_H
+#define AVUTIL_VERSION_H
+
+#include "macros.h"
+
+/**
+ * @addtogroup version_utils
+ *
+ * Useful to check and match library version in order to maintain
+ * backward compatibility.
+ *
+ * The FFmpeg libraries follow a versioning sheme very similar to
+ * Semantic Versioning (http://semver.org/)
+ * The difference is that the component called PATCH is called MICRO in FFmpeg
+ * and its value is reset to 100 instead of 0 to keep it above or equal to 100.
+ * Also we do not increase MICRO for every bugfix or change in git master.
+ *
+ * Prior to FFmpeg 3.2 point releases did not change any lib version number to
+ * avoid aliassing different git master checkouts.
+ * Starting with FFmpeg 3.2, the released library versions will occupy
+ * a separate MAJOR.MINOR that is not used on the master development branch.
+ * That is if we branch a release of master 55.10.123 we will bump to 55.11.100
+ * for the release and master will continue at 55.12.100 after it. Each new
+ * point release will then bump the MICRO improving the usefulness of the lib
+ * versions.
+ *
+ * @{
+ */
+
+#define AV_VERSION_INT(a, b, c) ((a)<<16 | (b)<<8 | (c))
+#define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
+#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
+
+/**
+ * Extract version components from the full ::AV_VERSION_INT int as returned
+ * by functions like ::avformat_version() and ::avcodec_version()
+ */
+#define AV_VERSION_MAJOR(a) ((a) >> 16)
+#define AV_VERSION_MINOR(a) (((a) & 0x00FF00) >> 8)
+#define AV_VERSION_MICRO(a) ((a) & 0xFF)
+
+/**
+ * @}
+ */
+
+/**
+ * @defgroup lavu_ver Version and Build diagnostics
+ *
+ * Macros and function useful to check at compiletime and at runtime
+ * which version of libavutil is in use.
+ *
+ * @{
+ */
+
+#define LIBAVUTIL_VERSION_MAJOR  56
+#define LIBAVUTIL_VERSION_MINOR  31
+#define LIBAVUTIL_VERSION_MICRO 100
+
+#define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
+                                               LIBAVUTIL_VERSION_MINOR, \
+                                               LIBAVUTIL_VERSION_MICRO)
+#define LIBAVUTIL_VERSION       AV_VERSION(LIBAVUTIL_VERSION_MAJOR,     \
+                                           LIBAVUTIL_VERSION_MINOR,     \
+                                           LIBAVUTIL_VERSION_MICRO)
+#define LIBAVUTIL_BUILD         LIBAVUTIL_VERSION_INT
+
+#define LIBAVUTIL_IDENT         "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
+
+/**
+ * @defgroup lavu_depr_guards Deprecation Guards
+ * FF_API_* defines may be placed below to indicate public API that will be
+ * dropped at a future version bump. The defines themselves are not part of
+ * the public API and may change, break or disappear at any time.
+ *
+ * @note, when bumping the major version it is recommended to manually
+ * disable each FF_API_* in its own commit instead of disabling them all
+ * at once through the bump. This improves the git bisect-ability of the change.
+ *
+ * @{
+ */
+
+#ifndef FF_API_VAAPI
+#define FF_API_VAAPI                    (LIBAVUTIL_VERSION_MAJOR < 57)
+#endif
+#ifndef FF_API_FRAME_QP
+#define FF_API_FRAME_QP                 (LIBAVUTIL_VERSION_MAJOR < 57)
+#endif
+#ifndef FF_API_PLUS1_MINUS1
+#define FF_API_PLUS1_MINUS1             (LIBAVUTIL_VERSION_MAJOR < 57)
+#endif
+#ifndef FF_API_ERROR_FRAME
+#define FF_API_ERROR_FRAME              (LIBAVUTIL_VERSION_MAJOR < 57)
+#endif
+#ifndef FF_API_PKT_PTS
+#define FF_API_PKT_PTS                  (LIBAVUTIL_VERSION_MAJOR < 57)
+#endif
+#ifndef FF_API_CRYPTO_SIZE_T
+#define FF_API_CRYPTO_SIZE_T            (LIBAVUTIL_VERSION_MAJOR < 57)
+#endif
+#ifndef FF_API_FRAME_GET_SET
+#define FF_API_FRAME_GET_SET            (LIBAVUTIL_VERSION_MAJOR < 57)
+#endif
+#ifndef FF_API_PSEUDOPAL
+#define FF_API_PSEUDOPAL                (LIBAVUTIL_VERSION_MAJOR < 57)
+#endif
+
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* AVUTIL_VERSION_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/Makefile b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/Makefile
new file mode 100644
index 000000000..5f5242b5b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/Makefile
@@ -0,0 +1,18 @@
+OBJS += x86/cpu.o                                                       \
+        x86/fixed_dsp_init.o                                            \
+        x86/float_dsp_init.o                                            \
+        x86/imgutils_init.o                                             \
+        x86/lls_init.o                                                  \
+
+OBJS-$(CONFIG_PIXELUTILS) += x86/pixelutils_init.o                      \
+
+EMMS_OBJS_$(HAVE_MMX_INLINE)_$(HAVE_MMX_EXTERNAL)_$(HAVE_MM_EMPTY) = x86/emms.o
+
+X86ASM-OBJS += x86/cpuid.o                                              \
+             $(EMMS_OBJS__yes_)                                      \
+             x86/fixed_dsp.o                                            \
+             x86/float_dsp.o                                            \
+             x86/imgutils.o                                             \
+             x86/lls.o                                                  \
+
+X86ASM-OBJS-$(CONFIG_PIXELUTILS) += x86/pixelutils.o                    \
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/asm.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/asm.h
new file mode 100644
index 000000000..9bff42d62
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/asm.h
@@ -0,0 +1,154 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_X86_ASM_H
+#define AVUTIL_X86_ASM_H
+
+#include <stdint.h>
+#include "config.h"
+
+typedef struct xmm_reg { uint64_t a, b; } xmm_reg;
+typedef struct ymm_reg { uint64_t a, b, c, d; } ymm_reg;
+
+#if ARCH_X86_64
+#    define FF_OPSIZE "q"
+#    define FF_REG_a "rax"
+#    define FF_REG_b "rbx"
+#    define FF_REG_c "rcx"
+#    define FF_REG_d "rdx"
+#    define FF_REG_D "rdi"
+#    define FF_REG_S "rsi"
+#    define FF_PTR_SIZE "8"
+typedef int64_t x86_reg;
+
+/* FF_REG_SP is defined in Solaris sys headers, so use FF_REG_sp */
+#    define FF_REG_sp "rsp"
+#    define FF_REG_BP "rbp"
+#    define FF_REGBP   rbp
+#    define FF_REGa    rax
+#    define FF_REGb    rbx
+#    define FF_REGc    rcx
+#    define FF_REGd    rdx
+#    define FF_REGSP   rsp
+
+#elif ARCH_X86_32
+
+#    define FF_OPSIZE "l"
+#    define FF_REG_a "eax"
+#    define FF_REG_b "ebx"
+#    define FF_REG_c "ecx"
+#    define FF_REG_d "edx"
+#    define FF_REG_D "edi"
+#    define FF_REG_S "esi"
+#    define FF_PTR_SIZE "4"
+typedef int32_t x86_reg;
+
+#    define FF_REG_sp "esp"
+#    define FF_REG_BP "ebp"
+#    define FF_REGBP   ebp
+#    define FF_REGa    eax
+#    define FF_REGb    ebx
+#    define FF_REGc    ecx
+#    define FF_REGd    edx
+#    define FF_REGSP   esp
+#else
+typedef int x86_reg;
+#endif
+
+#define HAVE_7REGS (ARCH_X86_64 || (HAVE_EBX_AVAILABLE && HAVE_EBP_AVAILABLE))
+#define HAVE_6REGS (ARCH_X86_64 || (HAVE_EBX_AVAILABLE || HAVE_EBP_AVAILABLE))
+
+#if ARCH_X86_64 && defined(PIC)
+#    define BROKEN_RELOCATIONS 1
+#endif
+
+/*
+ * If gcc is not set to support sse (-msse) it will not accept xmm registers
+ * in the clobber list for inline asm. XMM_CLOBBERS takes a list of xmm
+ * registers to be marked as clobbered and evaluates to nothing if they are
+ * not supported, or to the list itself if they are supported. Since a clobber
+ * list may not be empty, XMM_CLOBBERS_ONLY should be used if the xmm
+ * registers are the only in the clobber list.
+ * For example a list with "eax" and "xmm0" as clobbers should become:
+ * : XMM_CLOBBERS("xmm0",) "eax"
+ * and a list with only "xmm0" should become:
+ * XMM_CLOBBERS_ONLY("xmm0")
+ */
+#if HAVE_XMM_CLOBBERS
+#    define XMM_CLOBBERS(...)        __VA_ARGS__
+#    define XMM_CLOBBERS_ONLY(...) : __VA_ARGS__
+#else
+#    define XMM_CLOBBERS(...)
+#    define XMM_CLOBBERS_ONLY(...)
+#endif
+
+/* Use to export labels from asm. */
+#define LABEL_MANGLE(a) EXTERN_PREFIX #a
+
+// Use rip-relative addressing if compiling PIC code on x86-64.
+#if ARCH_X86_64 && defined(PIC)
+#    define LOCAL_MANGLE(a) #a "(%%rip)"
+#else
+#    define LOCAL_MANGLE(a) #a
+#endif
+
+#if HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS
+#   define MANGLE(a) EXTERN_PREFIX LOCAL_MANGLE(a)
+#   define NAMED_CONSTRAINTS_ADD(...)
+#   define NAMED_CONSTRAINTS(...)
+#   define NAMED_CONSTRAINTS_ARRAY_ADD(...)
+#   define NAMED_CONSTRAINTS_ARRAY(...)
+#else
+    /* When direct symbol references are used in code passed to a compiler that does not support them
+     *  then these references need to be converted to named asm constraints instead.
+     * Instead of returning a direct symbol MANGLE now returns a named constraint for that specific symbol.
+     * In order for this to work there must also be a corresponding entry in the asm-interface. To add this
+     *  entry use the macro NAMED_CONSTRAINTS() and pass in a list of each symbol reference used in the
+     *  corresponding block of code. (e.g. NAMED_CONSTRAINTS(var1,var2,var3) where var1 is the first symbol etc. ).
+     * If there are already existing constraints then use NAMED_CONSTRAINTS_ADD to add to the existing constraint list.
+     */
+#   define MANGLE(a) "%["#a"]"
+    // Intel/MSVC does not correctly expand va-args so we need a rather ugly hack in order to get it to work
+#   define FE_0(P,X) P(X)
+#   define FE_1(P,X,X1) P(X), FE_0(P,X1)
+#   define FE_2(P,X,X1,X2) P(X), FE_1(P,X1,X2)
+#   define FE_3(P,X,X1,X2,X3) P(X), FE_2(P,X1,X2,X3)
+#   define FE_4(P,X,X1,X2,X3,X4) P(X), FE_3(P,X1,X2,X3,X4)
+#   define FE_5(P,X,X1,X2,X3,X4,X5) P(X), FE_4(P,X1,X2,X3,X4,X5)
+#   define FE_6(P,X,X1,X2,X3,X4,X5,X6) P(X), FE_5(P,X1,X2,X3,X4,X5,X6)
+#   define FE_7(P,X,X1,X2,X3,X4,X5,X6,X7) P(X), FE_6(P,X1,X2,X3,X4,X5,X6,X7)
+#   define FE_8(P,X,X1,X2,X3,X4,X5,X6,X7,X8) P(X), FE_7(P,X1,X2,X3,X4,X5,X6,X7,X8)
+#   define FE_9(P,X,X1,X2,X3,X4,X5,X6,X7,X8,X9) P(X), FE_8(P,X1,X2,X3,X4,X5,X6,X7,X8,X9)
+#   define GET_FE_IMPL(_0,_1,_2,_3,_4,_5,_6,_7,_8,_9,NAME,...) NAME
+#   define GET_FE(A) GET_FE_IMPL A
+#   define GET_FE_GLUE(x, y) x y
+#   define FOR_EACH_VA(P,...) GET_FE_GLUE(GET_FE((__VA_ARGS__,FE_9,FE_8,FE_7,FE_6,FE_5,FE_4,FE_3,FE_2,FE_1,FE_0)), (P,__VA_ARGS__))
+#   define NAME_CONSTRAINT(x) [x] "m"(x)
+    // Parameters are a list of each symbol reference required
+#   define NAMED_CONSTRAINTS_ADD(...) , FOR_EACH_VA(NAME_CONSTRAINT,__VA_ARGS__)
+    // Same but without comma for when there are no previously defined constraints
+#   define NAMED_CONSTRAINTS(...) FOR_EACH_VA(NAME_CONSTRAINT,__VA_ARGS__)
+    // Same as above NAMED_CONSTRAINTS except used for passing arrays/pointers instead of normal variables
+#   define NAME_CONSTRAINT_ARRAY(x) [x] "m"(*x)
+#   define NAMED_CONSTRAINTS_ARRAY_ADD(...) , FOR_EACH_VA(NAME_CONSTRAINT_ARRAY,__VA_ARGS__)
+#   define NAMED_CONSTRAINTS_ARRAY(...) FOR_EACH_VA(NAME_CONSTRAINT_ARRAY,__VA_ARGS__)
+#endif
+
+#endif /* AVUTIL_X86_ASM_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/bswap.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/bswap.h
new file mode 100644
index 000000000..ffa59e4c8
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/bswap.h
@@ -0,0 +1,87 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * byte swapping routines
+ */
+
+#ifndef AVUTIL_X86_BSWAP_H
+#define AVUTIL_X86_BSWAP_H
+
+#include <stdint.h>
+#if defined(_MSC_VER)
+#include <intrin.h>
+#endif
+#include "config.h"
+#include "libavutil/attributes.h"
+
+#if defined(_MSC_VER)
+
+#define av_bswap16 av_bswap16
+static av_always_inline av_const uint16_t av_bswap16(uint16_t x)
+{
+    return _rotr16(x, 8);
+}
+
+#define av_bswap32 av_bswap32
+static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
+{
+    return _byteswap_ulong(x);
+}
+
+#if ARCH_X86_64
+#define av_bswap64 av_bswap64
+static inline uint64_t av_const av_bswap64(uint64_t x)
+{
+    return _byteswap_uint64(x);
+}
+#endif
+
+
+#elif HAVE_INLINE_ASM
+
+#if AV_GCC_VERSION_AT_MOST(4,0)
+#define av_bswap16 av_bswap16
+static av_always_inline av_const unsigned av_bswap16(unsigned x)
+{
+    __asm__("rorw $8, %w0" : "+r"(x));
+    return x;
+}
+#endif /* AV_GCC_VERSION_AT_MOST(4,0) */
+
+#if AV_GCC_VERSION_AT_MOST(4,4) || defined(__INTEL_COMPILER)
+#define av_bswap32 av_bswap32
+static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
+{
+    __asm__("bswap   %0" : "+r" (x));
+    return x;
+}
+
+#if ARCH_X86_64
+#define av_bswap64 av_bswap64
+static inline uint64_t av_const av_bswap64(uint64_t x)
+{
+    __asm__("bswap  %0": "=r" (x) : "0" (x));
+    return x;
+}
+#endif
+#endif /* AV_GCC_VERSION_AT_MOST(4,4) */
+
+#endif /* HAVE_INLINE_ASM */
+#endif /* AVUTIL_X86_BSWAP_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/cpu.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/cpu.c
new file mode 100644
index 000000000..bcd41a50a
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/cpu.c
@@ -0,0 +1,272 @@
+/*
+ * CPU detection code, extracted from mmx.h
+ * (c)1997-99 by H. Dietz and R. Fisher
+ * Converted to C and improved by Fabrice Bellard.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavutil/cpu.h"
+#include "libavutil/cpu_internal.h"
+
+#if HAVE_X86ASM
+
+#define cpuid(index, eax, ebx, ecx, edx)        \
+    ff_cpu_cpuid(index, &eax, &ebx, &ecx, &edx)
+
+#define xgetbv(index, eax, edx)                 \
+    ff_cpu_xgetbv(index, &eax, &edx)
+
+#elif HAVE_INLINE_ASM
+
+/* ebx saving is necessary for PIC. gcc seems unable to see it alone */
+#define cpuid(index, eax, ebx, ecx, edx)                        \
+    __asm__ volatile (                                          \
+        "mov    %%"FF_REG_b", %%"FF_REG_S" \n\t"                \
+        "cpuid                       \n\t"                      \
+        "xchg   %%"FF_REG_b", %%"FF_REG_S                       \
+        : "=a" (eax), "=S" (ebx), "=c" (ecx), "=d" (edx)        \
+        : "0" (index), "2"(0))
+
+#define xgetbv(index, eax, edx)                                 \
+    __asm__ (".byte 0x0f, 0x01, 0xd0" : "=a"(eax), "=d"(edx) : "c" (index))
+
+#define get_eflags(x)                           \
+    __asm__ volatile ("pushfl     \n"           \
+                      "pop    %0  \n"           \
+                      : "=r"(x))
+
+#define set_eflags(x)                           \
+    __asm__ volatile ("push    %0 \n"           \
+                      "popfl      \n"           \
+                      :: "r"(x))
+
+#endif /* HAVE_INLINE_ASM */
+
+#if ARCH_X86_64
+
+#define cpuid_test() 1
+
+#elif HAVE_X86ASM
+
+#define cpuid_test ff_cpu_cpuid_test
+
+#elif HAVE_INLINE_ASM
+
+static int cpuid_test(void)
+{
+    x86_reg a, c;
+
+    /* Check if CPUID is supported by attempting to toggle the ID bit in
+     * the EFLAGS register. */
+    get_eflags(a);
+    set_eflags(a ^ 0x200000);
+    get_eflags(c);
+
+    return a != c;
+}
+#endif
+
+/* Function to test if multimedia instructions are supported...  */
+int ff_get_cpu_flags_x86(void)
+{
+    int rval = 0;
+
+#ifdef cpuid
+
+    int eax, ebx, ecx, edx;
+    int max_std_level, max_ext_level, std_caps = 0, ext_caps = 0;
+    int family = 0, model = 0;
+    union { int i[3]; char c[12]; } vendor;
+    int xcr0_lo = 0, xcr0_hi = 0;
+
+    if (!cpuid_test())
+        return 0; /* CPUID not supported */
+
+    cpuid(0, max_std_level, vendor.i[0], vendor.i[2], vendor.i[1]);
+
+    if (max_std_level >= 1) {
+        cpuid(1, eax, ebx, ecx, std_caps);
+        family = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);
+        model  = ((eax >> 4) & 0xf) + ((eax >> 12) & 0xf0);
+        if (std_caps & (1 << 15))
+            rval |= AV_CPU_FLAG_CMOV;
+        if (std_caps & (1 << 23))
+            rval |= AV_CPU_FLAG_MMX;
+        if (std_caps & (1 << 25))
+            rval |= AV_CPU_FLAG_MMXEXT;
+#if HAVE_SSE
+        if (std_caps & (1 << 25))
+            rval |= AV_CPU_FLAG_SSE;
+        if (std_caps & (1 << 26))
+            rval |= AV_CPU_FLAG_SSE2;
+        if (ecx & 1)
+            rval |= AV_CPU_FLAG_SSE3;
+        if (ecx & 0x00000200 )
+            rval |= AV_CPU_FLAG_SSSE3;
+        if (ecx & 0x00080000 )
+            rval |= AV_CPU_FLAG_SSE4;
+        if (ecx & 0x00100000 )
+            rval |= AV_CPU_FLAG_SSE42;
+        if (ecx & 0x02000000 )
+            rval |= AV_CPU_FLAG_AESNI;
+#if HAVE_AVX
+        /* Check OXSAVE and AVX bits */
+        if ((ecx & 0x18000000) == 0x18000000) {
+            /* Check for OS support */
+            xgetbv(0, xcr0_lo, xcr0_hi);
+            if ((xcr0_lo & 0x6) == 0x6) {
+                rval |= AV_CPU_FLAG_AVX;
+                if (ecx & 0x00001000)
+                    rval |= AV_CPU_FLAG_FMA3;
+            }
+        }
+#endif /* HAVE_AVX */
+#endif /* HAVE_SSE */
+    }
+    if (max_std_level >= 7) {
+        cpuid(7, eax, ebx, ecx, edx);
+#if HAVE_AVX2
+        if ((rval & AV_CPU_FLAG_AVX) && (ebx & 0x00000020))
+            rval |= AV_CPU_FLAG_AVX2;
+#if HAVE_AVX512 /* F, CD, BW, DQ, VL */
+        if ((xcr0_lo & 0xe0) == 0xe0) { /* OPMASK/ZMM state */
+            if ((rval & AV_CPU_FLAG_AVX2) && (ebx & 0xd0030000) == 0xd0030000)
+                rval |= AV_CPU_FLAG_AVX512;
+
+        }
+#endif /* HAVE_AVX512 */
+#endif /* HAVE_AVX2 */
+        /* BMI1/2 don't need OS support */
+        if (ebx & 0x00000008) {
+            rval |= AV_CPU_FLAG_BMI1;
+            if (ebx & 0x00000100)
+                rval |= AV_CPU_FLAG_BMI2;
+        }
+    }
+
+    cpuid(0x80000000, max_ext_level, ebx, ecx, edx);
+
+    if (max_ext_level >= 0x80000001) {
+        cpuid(0x80000001, eax, ebx, ecx, ext_caps);
+        if (ext_caps & (1U << 31))
+            rval |= AV_CPU_FLAG_3DNOW;
+        if (ext_caps & (1 << 30))
+            rval |= AV_CPU_FLAG_3DNOWEXT;
+        if (ext_caps & (1 << 23))
+            rval |= AV_CPU_FLAG_MMX;
+        if (ext_caps & (1 << 22))
+            rval |= AV_CPU_FLAG_MMXEXT;
+
+        if (!strncmp(vendor.c, "AuthenticAMD", 12)) {
+        /* Allow for selectively disabling SSE2 functions on AMD processors
+           with SSE2 support but not SSE4a. This includes Athlon64, some
+           Opteron, and some Sempron processors. MMX, SSE, or 3DNow! are faster
+           than SSE2 often enough to utilize this special-case flag.
+           AV_CPU_FLAG_SSE2 and AV_CPU_FLAG_SSE2SLOW are both set in this case
+           so that SSE2 is used unless explicitly disabled by checking
+           AV_CPU_FLAG_SSE2SLOW. */
+            if (rval & AV_CPU_FLAG_SSE2 && !(ecx & 0x00000040))
+                rval |= AV_CPU_FLAG_SSE2SLOW;
+
+        /* Similar to the above but for AVX functions on AMD processors.
+           This is necessary only for functions using YMM registers on Bulldozer
+           and Jaguar based CPUs as they lack 256-bit execution units. SSE/AVX
+           functions using XMM registers are always faster on them.
+           AV_CPU_FLAG_AVX and AV_CPU_FLAG_AVXSLOW are both set so that AVX is
+           used unless explicitly disabled by checking AV_CPU_FLAG_AVXSLOW. */
+            if ((family == 0x15 || family == 0x16) && (rval & AV_CPU_FLAG_AVX))
+                rval |= AV_CPU_FLAG_AVXSLOW;
+        }
+
+        /* XOP and FMA4 use the AVX instruction coding scheme, so they can't be
+         * used unless the OS has AVX support. */
+        if (rval & AV_CPU_FLAG_AVX) {
+            if (ecx & 0x00000800)
+                rval |= AV_CPU_FLAG_XOP;
+            if (ecx & 0x00010000)
+                rval |= AV_CPU_FLAG_FMA4;
+        }
+    }
+
+    if (!strncmp(vendor.c, "GenuineIntel", 12)) {
+        if (family == 6 && (model == 9 || model == 13 || model == 14)) {
+            /* 6/9 (pentium-m "banias"), 6/13 (pentium-m "dothan"), and
+             * 6/14 (core1 "yonah") theoretically support sse2, but it's
+             * usually slower than mmx, so let's just pretend they don't.
+             * AV_CPU_FLAG_SSE2 is disabled and AV_CPU_FLAG_SSE2SLOW is
+             * enabled so that SSE2 is not used unless explicitly enabled
+             * by checking AV_CPU_FLAG_SSE2SLOW. The same situation
+             * applies for AV_CPU_FLAG_SSE3 and AV_CPU_FLAG_SSE3SLOW. */
+            if (rval & AV_CPU_FLAG_SSE2)
+                rval ^= AV_CPU_FLAG_SSE2SLOW | AV_CPU_FLAG_SSE2;
+            if (rval & AV_CPU_FLAG_SSE3)
+                rval ^= AV_CPU_FLAG_SSE3SLOW | AV_CPU_FLAG_SSE3;
+        }
+        /* The Atom processor has SSSE3 support, which is useful in many cases,
+         * but sometimes the SSSE3 version is slower than the SSE2 equivalent
+         * on the Atom, but is generally faster on other processors supporting
+         * SSSE3. This flag allows for selectively disabling certain SSSE3
+         * functions on the Atom. */
+        if (family == 6 && model == 28)
+            rval |= AV_CPU_FLAG_ATOM;
+
+        /* Conroe has a slow shuffle unit. Check the model number to ensure not
+         * to include crippled low-end Penryns and Nehalems that lack SSE4. */
+        if ((rval & AV_CPU_FLAG_SSSE3) && !(rval & AV_CPU_FLAG_SSE4) &&
+            family == 6 && model < 23)
+            rval |= AV_CPU_FLAG_SSSE3SLOW;
+    }
+
+#endif /* cpuid */
+
+    return rval;
+}
+
+size_t ff_get_cpu_max_align_x86(void)
+{
+    int flags = av_get_cpu_flags();
+
+    if (flags & AV_CPU_FLAG_AVX512)
+        return 64;
+    if (flags & (AV_CPU_FLAG_AVX2      |
+                 AV_CPU_FLAG_AVX       |
+                 AV_CPU_FLAG_XOP       |
+                 AV_CPU_FLAG_FMA4      |
+                 AV_CPU_FLAG_FMA3      |
+                 AV_CPU_FLAG_AVXSLOW))
+        return 32;
+    if (flags & (AV_CPU_FLAG_AESNI     |
+                 AV_CPU_FLAG_SSE42     |
+                 AV_CPU_FLAG_SSE4      |
+                 AV_CPU_FLAG_SSSE3     |
+                 AV_CPU_FLAG_SSE3      |
+                 AV_CPU_FLAG_SSE2      |
+                 AV_CPU_FLAG_SSE       |
+                 AV_CPU_FLAG_ATOM      |
+                 AV_CPU_FLAG_SSSE3SLOW |
+                 AV_CPU_FLAG_SSE3SLOW  |
+                 AV_CPU_FLAG_SSE2SLOW))
+        return 16;
+
+    return 8;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/cpu.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/cpu.h
new file mode 100644
index 000000000..937c697fa
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/cpu.h
@@ -0,0 +1,113 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_X86_CPU_H
+#define AVUTIL_X86_CPU_H
+
+#include "libavutil/cpu.h"
+#include "libavutil/cpu_internal.h"
+
+#define AV_CPU_FLAG_AMD3DNOW    AV_CPU_FLAG_3DNOW
+#define AV_CPU_FLAG_AMD3DNOWEXT AV_CPU_FLAG_3DNOWEXT
+
+#define X86_AMD3DNOW(flags)         CPUEXT(flags, AMD3DNOW)
+#define X86_AMD3DNOWEXT(flags)      CPUEXT(flags, AMD3DNOWEXT)
+#define X86_MMX(flags)              CPUEXT(flags, MMX)
+#define X86_MMXEXT(flags)           CPUEXT(flags, MMXEXT)
+#define X86_SSE(flags)              CPUEXT(flags, SSE)
+#define X86_SSE2(flags)             CPUEXT(flags, SSE2)
+#define X86_SSE2_FAST(flags)        CPUEXT_FAST(flags, SSE2)
+#define X86_SSE2_SLOW(flags)        CPUEXT_SLOW(flags, SSE2)
+#define X86_SSE3(flags)             CPUEXT(flags, SSE3)
+#define X86_SSE3_FAST(flags)        CPUEXT_FAST(flags, SSE3)
+#define X86_SSE3_SLOW(flags)        CPUEXT_SLOW(flags, SSE3)
+#define X86_SSSE3(flags)            CPUEXT(flags, SSSE3)
+#define X86_SSSE3_FAST(flags)       CPUEXT_FAST(flags, SSSE3)
+#define X86_SSSE3_SLOW(flags)       CPUEXT_SLOW(flags, SSSE3)
+#define X86_SSE4(flags)             CPUEXT(flags, SSE4)
+#define X86_SSE42(flags)            CPUEXT(flags, SSE42)
+#define X86_AVX(flags)              CPUEXT(flags, AVX)
+#define X86_AVX_FAST(flags)         CPUEXT_FAST(flags, AVX)
+#define X86_AVX_SLOW(flags)         CPUEXT_SLOW(flags, AVX)
+#define X86_XOP(flags)              CPUEXT(flags, XOP)
+#define X86_FMA3(flags)             CPUEXT(flags, FMA3)
+#define X86_FMA4(flags)             CPUEXT(flags, FMA4)
+#define X86_AVX2(flags)             CPUEXT(flags, AVX2)
+#define X86_AESNI(flags)            CPUEXT(flags, AESNI)
+#define X86_AVX512(flags)           CPUEXT(flags, AVX512)
+
+#define EXTERNAL_AMD3DNOW(flags)    CPUEXT_SUFFIX(flags, _EXTERNAL, AMD3DNOW)
+#define EXTERNAL_AMD3DNOWEXT(flags) CPUEXT_SUFFIX(flags, _EXTERNAL, AMD3DNOWEXT)
+#define EXTERNAL_MMX(flags)         CPUEXT_SUFFIX(flags, _EXTERNAL, MMX)
+#define EXTERNAL_MMXEXT(flags)      CPUEXT_SUFFIX(flags, _EXTERNAL, MMXEXT)
+#define EXTERNAL_SSE(flags)         CPUEXT_SUFFIX(flags, _EXTERNAL, SSE)
+#define EXTERNAL_SSE2(flags)        CPUEXT_SUFFIX(flags, _EXTERNAL, SSE2)
+#define EXTERNAL_SSE2_FAST(flags)   CPUEXT_SUFFIX_FAST(flags, _EXTERNAL, SSE2)
+#define EXTERNAL_SSE2_SLOW(flags)   CPUEXT_SUFFIX_SLOW(flags, _EXTERNAL, SSE2)
+#define EXTERNAL_SSE3(flags)        CPUEXT_SUFFIX(flags, _EXTERNAL, SSE3)
+#define EXTERNAL_SSE3_FAST(flags)   CPUEXT_SUFFIX_FAST(flags, _EXTERNAL, SSE3)
+#define EXTERNAL_SSE3_SLOW(flags)   CPUEXT_SUFFIX_SLOW(flags, _EXTERNAL, SSE3)
+#define EXTERNAL_SSSE3(flags)       CPUEXT_SUFFIX(flags, _EXTERNAL, SSSE3)
+#define EXTERNAL_SSSE3_FAST(flags)  CPUEXT_SUFFIX_FAST(flags, _EXTERNAL, SSSE3)
+#define EXTERNAL_SSSE3_SLOW(flags)  CPUEXT_SUFFIX_SLOW(flags, _EXTERNAL, SSSE3)
+#define EXTERNAL_SSE4(flags)        CPUEXT_SUFFIX(flags, _EXTERNAL, SSE4)
+#define EXTERNAL_SSE42(flags)       CPUEXT_SUFFIX(flags, _EXTERNAL, SSE42)
+#define EXTERNAL_AVX(flags)         CPUEXT_SUFFIX(flags, _EXTERNAL, AVX)
+#define EXTERNAL_AVX_FAST(flags)    CPUEXT_SUFFIX_FAST(flags, _EXTERNAL, AVX)
+#define EXTERNAL_AVX_SLOW(flags)    CPUEXT_SUFFIX_SLOW(flags, _EXTERNAL, AVX)
+#define EXTERNAL_XOP(flags)         CPUEXT_SUFFIX(flags, _EXTERNAL, XOP)
+#define EXTERNAL_FMA3(flags)        CPUEXT_SUFFIX(flags, _EXTERNAL, FMA3)
+#define EXTERNAL_FMA3_FAST(flags)   CPUEXT_SUFFIX_FAST2(flags, _EXTERNAL, FMA3, AVX)
+#define EXTERNAL_FMA3_SLOW(flags)   CPUEXT_SUFFIX_SLOW2(flags, _EXTERNAL, FMA3, AVX)
+#define EXTERNAL_FMA4(flags)        CPUEXT_SUFFIX(flags, _EXTERNAL, FMA4)
+#define EXTERNAL_AVX2(flags)        CPUEXT_SUFFIX(flags, _EXTERNAL, AVX2)
+#define EXTERNAL_AVX2_FAST(flags)   CPUEXT_SUFFIX_FAST2(flags, _EXTERNAL, AVX2, AVX)
+#define EXTERNAL_AVX2_SLOW(flags)   CPUEXT_SUFFIX_SLOW2(flags, _EXTERNAL, AVX2, AVX)
+#define EXTERNAL_AESNI(flags)       CPUEXT_SUFFIX(flags, _EXTERNAL, AESNI)
+#define EXTERNAL_AVX512(flags)      CPUEXT_SUFFIX(flags, _EXTERNAL, AVX512)
+
+#define INLINE_AMD3DNOW(flags)      CPUEXT_SUFFIX(flags, _INLINE, AMD3DNOW)
+#define INLINE_AMD3DNOWEXT(flags)   CPUEXT_SUFFIX(flags, _INLINE, AMD3DNOWEXT)
+#define INLINE_MMX(flags)           CPUEXT_SUFFIX(flags, _INLINE, MMX)
+#define INLINE_MMXEXT(flags)        CPUEXT_SUFFIX(flags, _INLINE, MMXEXT)
+#define INLINE_SSE(flags)           CPUEXT_SUFFIX(flags, _INLINE, SSE)
+#define INLINE_SSE2(flags)          CPUEXT_SUFFIX(flags, _INLINE, SSE2)
+#define INLINE_SSE2_FAST(flags)     CPUEXT_SUFFIX_FAST(flags, _INLINE, SSE2)
+#define INLINE_SSE2_SLOW(flags)     CPUEXT_SUFFIX_SLOW(flags, _INLINE, SSE2)
+#define INLINE_SSE3(flags)          CPUEXT_SUFFIX(flags, _INLINE, SSE3)
+#define INLINE_SSE3_FAST(flags)     CPUEXT_SUFFIX_FAST(flags, _INLINE, SSE3)
+#define INLINE_SSE3_SLOW(flags)     CPUEXT_SUFFIX_SLOW(flags, _INLINE, SSE3)
+#define INLINE_SSSE3(flags)         CPUEXT_SUFFIX(flags, _INLINE, SSSE3)
+#define INLINE_SSSE3_FAST(flags)    CPUEXT_SUFFIX_FAST(flags, _INLINE, SSSE3)
+#define INLINE_SSSE3_SLOW(flags)    CPUEXT_SUFFIX_SLOW(flags, _INLINE, SSSE3)
+#define INLINE_SSE4(flags)          CPUEXT_SUFFIX(flags, _INLINE, SSE4)
+#define INLINE_SSE42(flags)         CPUEXT_SUFFIX(flags, _INLINE, SSE42)
+#define INLINE_AVX(flags)           CPUEXT_SUFFIX(flags, _INLINE, AVX)
+#define INLINE_AVX_FAST(flags)      CPUEXT_SUFFIX_FAST(flags, _INLINE, AVX)
+#define INLINE_AVX_SLOW(flags)      CPUEXT_SUFFIX_SLOW(flags, _INLINE, AVX)
+#define INLINE_XOP(flags)           CPUEXT_SUFFIX(flags, _INLINE, XOP)
+#define INLINE_FMA3(flags)          CPUEXT_SUFFIX(flags, _INLINE, FMA3)
+#define INLINE_FMA4(flags)          CPUEXT_SUFFIX(flags, _INLINE, FMA4)
+#define INLINE_AVX2(flags)          CPUEXT_SUFFIX(flags, _INLINE, AVX2)
+#define INLINE_AESNI(flags)         CPUEXT_SUFFIX(flags, _INLINE, AESNI)
+
+void ff_cpu_cpuid(int index, int *eax, int *ebx, int *ecx, int *edx);
+void ff_cpu_xgetbv(int op, int *eax, int *edx);
+int  ff_cpu_cpuid_test(void);
+
+#endif /* AVUTIL_X86_CPU_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/cpuid.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/cpuid.asm
new file mode 100644
index 000000000..c3f7866ec
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/cpuid.asm
@@ -0,0 +1,91 @@
+;*****************************************************************************
+;* Copyright (C) 2005-2010 x264 project
+;*
+;* Authors: Loren Merritt <lorenm@u.washington.edu>
+;*          Fiona Glaser <fiona@x264.com>
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "x86util.asm"
+
+SECTION .text
+
+;-----------------------------------------------------------------------------
+; void ff_cpu_cpuid(int index, int *eax, int *ebx, int *ecx, int *edx)
+;-----------------------------------------------------------------------------
+cglobal cpu_cpuid, 5,7
+    push rbx
+    push  r4
+    push  r3
+    push  r2
+    push  r1
+    mov  eax, r0d
+    xor  ecx, ecx
+    cpuid
+    pop   r4
+    mov [r4], eax
+    pop   r4
+    mov [r4], ebx
+    pop   r4
+    mov [r4], ecx
+    pop   r4
+    mov [r4], edx
+    pop  rbx
+    RET
+
+;-----------------------------------------------------------------------------
+; void ff_cpu_xgetbv(int op, int *eax, int *edx)
+;-----------------------------------------------------------------------------
+cglobal cpu_xgetbv, 3,7
+    push  r2
+    push  r1
+    mov  ecx, r0d
+    xgetbv
+    pop   r4
+    mov [r4], eax
+    pop   r4
+    mov [r4], edx
+    RET
+
+%if ARCH_X86_64 == 0
+;-----------------------------------------------------------------------------
+; int ff_cpu_cpuid_test(void)
+; return 0 if unsupported
+;-----------------------------------------------------------------------------
+cglobal cpu_cpuid_test
+    pushfd
+    push    ebx
+    push    ebp
+    push    esi
+    push    edi
+    pushfd
+    pop     eax
+    mov     ebx, eax
+    xor     eax, 0x200000
+    push    eax
+    popfd
+    pushfd
+    pop     eax
+    xor     eax, ebx
+    pop     edi
+    pop     esi
+    pop     ebp
+    pop     ebx
+    popfd
+    ret
+%endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/emms.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/emms.h
new file mode 100644
index 000000000..c21e34b45
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/emms.h
@@ -0,0 +1,55 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_X86_EMMS_H
+#define AVUTIL_X86_EMMS_H
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+
+void avpriv_emms_asm(void);
+
+#if HAVE_MMX_INLINE
+#   define emms_c emms_c
+/**
+ * Empty mmx state.
+ * this must be called between any dsp function and float/double code.
+ * for example sin(); dsp->idct_put(); emms_c(); cos()
+ * Note, *alloc() and *free() also use float code in some libc implementations
+ * thus this also applies to them or any function using them.
+ */
+static av_always_inline void emms_c(void)
+{
+/* Some inlined functions may also use mmx instructions regardless of
+ * runtime cpuflags. With that in mind, we unconditionally empty the
+ * mmx state if the target cpu chosen at configure time supports it.
+ */
+#if !defined(__MMX__)
+    if(av_get_cpu_flags() & AV_CPU_FLAG_MMX)
+#endif
+        __asm__ volatile ("emms" ::: "memory");
+}
+#elif HAVE_MMX && HAVE_MM_EMPTY
+#   include <mmintrin.h>
+#   define emms_c _mm_empty
+#elif HAVE_MMX_EXTERNAL
+#   define emms_c avpriv_emms_asm
+#endif /* HAVE_MMX_INLINE */
+
+#endif /* AVUTIL_X86_EMMS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/fixed_dsp.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/fixed_dsp.asm
new file mode 100644
index 000000000..979dd5c33
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/fixed_dsp.asm
@@ -0,0 +1,48 @@
+;*****************************************************************************
+;* x86-optimized Float DSP functions
+;*
+;* Copyright 2016 James Almer
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "x86util.asm"
+
+SECTION .text
+
+;-----------------------------------------------------------------------------
+; void ff_butterflies_fixed(float *src0, float *src1, int len);
+;-----------------------------------------------------------------------------
+INIT_XMM sse2
+cglobal butterflies_fixed, 3,3,3, src0, src1, len
+    shl       lend, 2
+    add      src0q, lenq
+    add      src1q, lenq
+    neg       lenq
+
+align 16
+.loop:
+    mova        m0, [src0q + lenq]
+    mova        m1, [src1q + lenq]
+    mova        m2, m0
+    paddd       m0, m1
+    psubd       m2, m1
+    mova        [src0q + lenq], m0
+    mova        [src1q + lenq], m2
+    add       lenq, mmsize
+    jl .loop
+    RET
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/fixed_dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/fixed_dsp_init.c
new file mode 100644
index 000000000..303a2eb92
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/fixed_dsp_init.c
@@ -0,0 +1,35 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/fixed_dsp.h"
+#include "cpu.h"
+
+void ff_butterflies_fixed_sse2(int *src0, int *src1, int len);
+
+av_cold void ff_fixed_dsp_init_x86(AVFixedDSPContext *fdsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        fdsp->butterflies_fixed = ff_butterflies_fixed_sse2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/float_dsp.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/float_dsp.asm
new file mode 100644
index 000000000..517fd6363
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/float_dsp.asm
@@ -0,0 +1,484 @@
+;*****************************************************************************
+;* x86-optimized Float DSP functions
+;*
+;* Copyright 2006 Loren Merritt
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "x86util.asm"
+
+SECTION_RODATA 32
+pd_reverse: dd 7, 6, 5, 4, 3, 2, 1, 0
+
+SECTION .text
+
+;-----------------------------------------------------------------------------
+; void vector_fmul(float *dst, const float *src0, const float *src1, int len)
+;-----------------------------------------------------------------------------
+%macro VECTOR_FMUL 0
+cglobal vector_fmul, 4,4,2, dst, src0, src1, len
+    lea       lenq, [lend*4 - 64]
+ALIGN 16
+.loop:
+%assign a 0
+%rep 32/mmsize
+    mova      m0,   [src0q + lenq + (a+0)*mmsize]
+    mova      m1,   [src0q + lenq + (a+1)*mmsize]
+    mulps     m0, m0, [src1q + lenq + (a+0)*mmsize]
+    mulps     m1, m1, [src1q + lenq + (a+1)*mmsize]
+    mova      [dstq + lenq + (a+0)*mmsize], m0
+    mova      [dstq + lenq + (a+1)*mmsize], m1
+%assign a a+2
+%endrep
+
+    sub       lenq, 64
+    jge       .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+VECTOR_FMUL
+%if HAVE_AVX_EXTERNAL
+INIT_YMM avx
+VECTOR_FMUL
+%endif
+
+;-----------------------------------------------------------------------------
+; void vector_dmul(double *dst, const double *src0, const double *src1, int len)
+;-----------------------------------------------------------------------------
+%macro VECTOR_DMUL 0
+cglobal vector_dmul, 4,4,4, dst, src0, src1, len
+    lea       lend, [lenq*8 - mmsize*4]
+ALIGN 16
+.loop:
+    movaps    m0,     [src0q + lenq + 0*mmsize]
+    movaps    m1,     [src0q + lenq + 1*mmsize]
+    movaps    m2,     [src0q + lenq + 2*mmsize]
+    movaps    m3,     [src0q + lenq + 3*mmsize]
+    mulpd     m0, m0, [src1q + lenq + 0*mmsize]
+    mulpd     m1, m1, [src1q + lenq + 1*mmsize]
+    mulpd     m2, m2, [src1q + lenq + 2*mmsize]
+    mulpd     m3, m3, [src1q + lenq + 3*mmsize]
+    movaps    [dstq + lenq + 0*mmsize], m0
+    movaps    [dstq + lenq + 1*mmsize], m1
+    movaps    [dstq + lenq + 2*mmsize], m2
+    movaps    [dstq + lenq + 3*mmsize], m3
+
+    sub       lenq, mmsize*4
+    jge       .loop
+    RET
+%endmacro
+
+INIT_XMM sse2
+VECTOR_DMUL
+%if HAVE_AVX_EXTERNAL
+INIT_YMM avx
+VECTOR_DMUL
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_vector_fmac_scalar(float *dst, const float *src, float mul, int len)
+;------------------------------------------------------------------------------
+
+%macro VECTOR_FMAC_SCALAR 0
+%if UNIX64
+cglobal vector_fmac_scalar, 3,3,5, dst, src, len
+%else
+cglobal vector_fmac_scalar, 4,4,5, dst, src, mul, len
+%endif
+%if ARCH_X86_32
+    VBROADCASTSS m0, mulm
+%else
+%if WIN64
+    SWAP 0, 2
+%endif
+    shufps      xm0, xm0, 0
+%if cpuflag(avx)
+    vinsertf128  m0, m0, xm0, 1
+%endif
+%endif
+    lea    lenq, [lend*4-64]
+.loop:
+%if cpuflag(fma3)
+    mova     m1,     [dstq+lenq]
+    mova     m2,     [dstq+lenq+1*mmsize]
+    fmaddps  m1, m0, [srcq+lenq], m1
+    fmaddps  m2, m0, [srcq+lenq+1*mmsize], m2
+%else ; cpuflag
+    mulps    m1, m0, [srcq+lenq]
+    mulps    m2, m0, [srcq+lenq+1*mmsize]
+%if mmsize < 32
+    mulps    m3, m0, [srcq+lenq+2*mmsize]
+    mulps    m4, m0, [srcq+lenq+3*mmsize]
+%endif ; mmsize
+    addps    m1, m1, [dstq+lenq]
+    addps    m2, m2, [dstq+lenq+1*mmsize]
+%if mmsize < 32
+    addps    m3, m3, [dstq+lenq+2*mmsize]
+    addps    m4, m4, [dstq+lenq+3*mmsize]
+%endif ; mmsize
+%endif ; cpuflag
+    mova  [dstq+lenq], m1
+    mova  [dstq+lenq+1*mmsize], m2
+%if mmsize < 32
+    mova  [dstq+lenq+2*mmsize], m3
+    mova  [dstq+lenq+3*mmsize], m4
+%endif ; mmsize
+    sub    lenq, 64
+    jge .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+VECTOR_FMAC_SCALAR
+%if HAVE_AVX_EXTERNAL
+INIT_YMM avx
+VECTOR_FMAC_SCALAR
+%endif
+%if HAVE_FMA3_EXTERNAL
+INIT_YMM fma3
+VECTOR_FMAC_SCALAR
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_vector_fmul_scalar(float *dst, const float *src, float mul, int len)
+;------------------------------------------------------------------------------
+
+%macro VECTOR_FMUL_SCALAR 0
+%if UNIX64
+cglobal vector_fmul_scalar, 3,3,2, dst, src, len
+%else
+cglobal vector_fmul_scalar, 4,4,3, dst, src, mul, len
+%endif
+%if ARCH_X86_32
+    movss    m0, mulm
+%elif WIN64
+    SWAP 0, 2
+%endif
+    shufps   m0, m0, 0
+    lea    lenq, [lend*4-mmsize]
+.loop:
+    mova     m1, [srcq+lenq]
+    mulps    m1, m0
+    mova  [dstq+lenq], m1
+    sub    lenq, mmsize
+    jge .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+VECTOR_FMUL_SCALAR
+
+;------------------------------------------------------------------------------
+; void ff_vector_dmac_scalar(double *dst, const double *src, double mul,
+;                            int len)
+;------------------------------------------------------------------------------
+
+%macro VECTOR_DMAC_SCALAR 0
+%if ARCH_X86_32
+cglobal vector_dmac_scalar, 2,4,5, dst, src, mul, len, lenaddr
+    mov          lenq, lenaddrm
+    VBROADCASTSD m0, mulm
+%else
+%if UNIX64
+cglobal vector_dmac_scalar, 3,3,5, dst, src, len
+%else
+cglobal vector_dmac_scalar, 4,4,5, dst, src, mul, len
+    SWAP 0, 2
+%endif
+    movlhps     xm0, xm0
+%if cpuflag(avx)
+    vinsertf128  m0, m0, xm0, 1
+%endif
+%endif
+    lea    lenq, [lend*8-mmsize*4]
+.loop:
+%if cpuflag(fma3)
+    movaps   m1,     [dstq+lenq]
+    movaps   m2,     [dstq+lenq+1*mmsize]
+    movaps   m3,     [dstq+lenq+2*mmsize]
+    movaps   m4,     [dstq+lenq+3*mmsize]
+    fmaddpd  m1, m0, [srcq+lenq], m1
+    fmaddpd  m2, m0, [srcq+lenq+1*mmsize], m2
+    fmaddpd  m3, m0, [srcq+lenq+2*mmsize], m3
+    fmaddpd  m4, m0, [srcq+lenq+3*mmsize], m4
+%else ; cpuflag
+    mulpd    m1, m0, [srcq+lenq]
+    mulpd    m2, m0, [srcq+lenq+1*mmsize]
+    mulpd    m3, m0, [srcq+lenq+2*mmsize]
+    mulpd    m4, m0, [srcq+lenq+3*mmsize]
+    addpd    m1, m1, [dstq+lenq]
+    addpd    m2, m2, [dstq+lenq+1*mmsize]
+    addpd    m3, m3, [dstq+lenq+2*mmsize]
+    addpd    m4, m4, [dstq+lenq+3*mmsize]
+%endif ; cpuflag
+    movaps [dstq+lenq], m1
+    movaps [dstq+lenq+1*mmsize], m2
+    movaps [dstq+lenq+2*mmsize], m3
+    movaps [dstq+lenq+3*mmsize], m4
+    sub    lenq, mmsize*4
+    jge .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+VECTOR_DMAC_SCALAR
+%if HAVE_AVX_EXTERNAL
+INIT_YMM avx
+VECTOR_DMAC_SCALAR
+%endif
+%if HAVE_FMA3_EXTERNAL
+INIT_YMM fma3
+VECTOR_DMAC_SCALAR
+%endif
+
+;------------------------------------------------------------------------------
+; void ff_vector_dmul_scalar(double *dst, const double *src, double mul,
+;                            int len)
+;------------------------------------------------------------------------------
+
+%macro VECTOR_DMUL_SCALAR 0
+%if ARCH_X86_32
+cglobal vector_dmul_scalar, 3,4,3, dst, src, mul, len, lenaddr
+    mov          lenq, lenaddrm
+%elif UNIX64
+cglobal vector_dmul_scalar, 3,3,3, dst, src, len
+%else
+cglobal vector_dmul_scalar, 4,4,3, dst, src, mul, len
+%endif
+%if ARCH_X86_32
+    VBROADCASTSD   m0, mulm
+%else
+%if WIN64
+    SWAP 0, 2
+%endif
+    movlhps       xm0, xm0
+%if cpuflag(avx)
+    vinsertf128   ym0, ym0, xm0, 1
+%endif
+%endif
+    lea          lenq, [lend*8-2*mmsize]
+.loop:
+    mulpd          m1, m0, [srcq+lenq       ]
+    mulpd          m2, m0, [srcq+lenq+mmsize]
+    movaps [dstq+lenq       ], m1
+    movaps [dstq+lenq+mmsize], m2
+    sub          lenq, 2*mmsize
+    jge .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+VECTOR_DMUL_SCALAR
+%if HAVE_AVX_EXTERNAL
+INIT_YMM avx
+VECTOR_DMUL_SCALAR
+%endif
+
+;-----------------------------------------------------------------------------
+; vector_fmul_window(float *dst, const float *src0,
+;                    const float *src1, const float *win, int len);
+;-----------------------------------------------------------------------------
+%macro VECTOR_FMUL_WINDOW 0
+cglobal vector_fmul_window, 5, 6, 6, dst, src0, src1, win, len, len1
+    shl     lend, 2
+    lea    len1q, [lenq - mmsize]
+    add    src0q, lenq
+    add     dstq, lenq
+    add     winq, lenq
+    neg     lenq
+.loop:
+    mova      m0, [winq  + lenq]
+    mova      m4, [src0q + lenq]
+%if cpuflag(sse)
+    mova      m1, [winq  + len1q]
+    mova      m5, [src1q + len1q]
+    shufps    m1, m1, 0x1b
+    shufps    m5, m5, 0x1b
+    mova      m2, m0
+    mova      m3, m1
+    mulps     m2, m4
+    mulps     m3, m5
+    mulps     m1, m4
+    mulps     m0, m5
+    addps     m2, m3
+    subps     m1, m0
+    shufps    m2, m2, 0x1b
+%else
+    pswapd    m1, [winq  + len1q]
+    pswapd    m5, [src1q + len1q]
+    mova      m2, m0
+    mova      m3, m1
+    pfmul     m2, m4
+    pfmul     m3, m5
+    pfmul     m1, m4
+    pfmul     m0, m5
+    pfadd     m2, m3
+    pfsub     m1, m0
+    pswapd    m2, m2
+%endif
+    mova      [dstq + lenq], m1
+    mova      [dstq + len1q], m2
+    sub       len1q, mmsize
+    add       lenq,  mmsize
+    jl .loop
+%if mmsize == 8
+    femms
+%endif
+    REP_RET
+%endmacro
+
+INIT_MMX 3dnowext
+VECTOR_FMUL_WINDOW
+INIT_XMM sse
+VECTOR_FMUL_WINDOW
+
+;-----------------------------------------------------------------------------
+; vector_fmul_add(float *dst, const float *src0, const float *src1,
+;                 const float *src2, int len)
+;-----------------------------------------------------------------------------
+%macro VECTOR_FMUL_ADD 0
+cglobal vector_fmul_add, 5,5,4, dst, src0, src1, src2, len
+    lea       lenq, [lend*4 - 2*mmsize]
+ALIGN 16
+.loop:
+    mova    m0,   [src0q + lenq]
+    mova    m1,   [src0q + lenq + mmsize]
+%if cpuflag(fma3)
+    mova    m2,     [src2q + lenq]
+    mova    m3,     [src2q + lenq + mmsize]
+    fmaddps m0, m0, [src1q + lenq], m2
+    fmaddps m1, m1, [src1q + lenq + mmsize], m3
+%else
+    mulps   m0, m0, [src1q + lenq]
+    mulps   m1, m1, [src1q + lenq + mmsize]
+    addps   m0, m0, [src2q + lenq]
+    addps   m1, m1, [src2q + lenq + mmsize]
+%endif
+    mova    [dstq + lenq], m0
+    mova    [dstq + lenq + mmsize], m1
+
+    sub     lenq,   2*mmsize
+    jge     .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+VECTOR_FMUL_ADD
+%if HAVE_AVX_EXTERNAL
+INIT_YMM avx
+VECTOR_FMUL_ADD
+%endif
+%if HAVE_FMA3_EXTERNAL
+INIT_YMM fma3
+VECTOR_FMUL_ADD
+%endif
+
+;-----------------------------------------------------------------------------
+; void vector_fmul_reverse(float *dst, const float *src0, const float *src1,
+;                          int len)
+;-----------------------------------------------------------------------------
+%macro VECTOR_FMUL_REVERSE 0
+cglobal vector_fmul_reverse, 4,4,2, dst, src0, src1, len
+%if cpuflag(avx2)
+    movaps  m2, [pd_reverse]
+%endif
+    lea       lenq, [lend*4 - 2*mmsize]
+ALIGN 16
+.loop:
+%if cpuflag(avx2)
+    vpermps m0, m2, [src1q]
+    vpermps m1, m2, [src1q+mmsize]
+%elif cpuflag(avx)
+    vmovaps     xmm0, [src1q + 16]
+    vinsertf128 m0, m0, [src1q], 1
+    vshufps     m0, m0, m0, q0123
+    vmovaps     xmm1, [src1q + mmsize + 16]
+    vinsertf128 m1, m1, [src1q + mmsize], 1
+    vshufps     m1, m1, m1, q0123
+%else
+    mova    m0, [src1q]
+    mova    m1, [src1q + mmsize]
+    shufps  m0, m0, q0123
+    shufps  m1, m1, q0123
+%endif
+    mulps   m0, m0, [src0q + lenq + mmsize]
+    mulps   m1, m1, [src0q + lenq]
+    movaps  [dstq + lenq + mmsize], m0
+    movaps  [dstq + lenq], m1
+    add     src1q, 2*mmsize
+    sub     lenq,  2*mmsize
+    jge     .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse
+VECTOR_FMUL_REVERSE
+%if HAVE_AVX_EXTERNAL
+INIT_YMM avx
+VECTOR_FMUL_REVERSE
+%endif
+%if HAVE_AVX2_EXTERNAL
+INIT_YMM avx2
+VECTOR_FMUL_REVERSE
+%endif
+
+; float scalarproduct_float_sse(const float *v1, const float *v2, int len)
+INIT_XMM sse
+cglobal scalarproduct_float, 3,3,2, v1, v2, offset
+    shl   offsetd, 2
+    add       v1q, offsetq
+    add       v2q, offsetq
+    neg   offsetq
+    xorps    xmm0, xmm0
+.loop:
+    movaps   xmm1, [v1q+offsetq]
+    mulps    xmm1, [v2q+offsetq]
+    addps    xmm0, xmm1
+    add   offsetq, 16
+    js .loop
+    movhlps  xmm1, xmm0
+    addps    xmm0, xmm1
+    movss    xmm1, xmm0
+    shufps   xmm0, xmm0, 1
+    addss    xmm0, xmm1
+%if ARCH_X86_64 == 0
+    movss     r0m,  xmm0
+    fld dword r0m
+%endif
+    RET
+
+;-----------------------------------------------------------------------------
+; void ff_butterflies_float(float *src0, float *src1, int len);
+;-----------------------------------------------------------------------------
+INIT_XMM sse
+cglobal butterflies_float, 3,3,3, src0, src1, len
+    shl       lend, 2
+    add      src0q, lenq
+    add      src1q, lenq
+    neg       lenq
+.loop:
+    mova        m0, [src0q + lenq]
+    mova        m1, [src1q + lenq]
+    subps       m2, m0, m1
+    addps       m0, m0, m1
+    mova        [src1q + lenq], m2
+    mova        [src0q + lenq], m0
+    add       lenq, mmsize
+    jl .loop
+    REP_RET
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/float_dsp_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/float_dsp_init.c
new file mode 100644
index 000000000..8826e4e2c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/float_dsp_init.c
@@ -0,0 +1,121 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/float_dsp.h"
+#include "cpu.h"
+#include "asm.h"
+
+void ff_vector_fmul_sse(float *dst, const float *src0, const float *src1,
+                        int len);
+void ff_vector_fmul_avx(float *dst, const float *src0, const float *src1,
+                        int len);
+
+void ff_vector_dmul_sse2(double *dst, const double *src0, const double *src1,
+                         int len);
+void ff_vector_dmul_avx(double *dst, const double *src0, const double *src1,
+                        int len);
+
+void ff_vector_fmac_scalar_sse(float *dst, const float *src, float mul,
+                               int len);
+void ff_vector_fmac_scalar_avx(float *dst, const float *src, float mul,
+                               int len);
+void ff_vector_fmac_scalar_fma3(float *dst, const float *src, float mul,
+                                int len);
+
+void ff_vector_fmul_scalar_sse(float *dst, const float *src, float mul,
+                               int len);
+
+void ff_vector_dmac_scalar_sse2(double *dst, const double *src, double mul,
+                                int len);
+void ff_vector_dmac_scalar_avx(double *dst, const double *src, double mul,
+                               int len);
+void ff_vector_dmac_scalar_fma3(double *dst, const double *src, double mul,
+                                int len);
+
+void ff_vector_dmul_scalar_sse2(double *dst, const double *src,
+                                double mul, int len);
+void ff_vector_dmul_scalar_avx(double *dst, const double *src,
+                               double mul, int len);
+
+void ff_vector_fmul_window_3dnowext(float *dst, const float *src0,
+                                    const float *src1, const float *win, int len);
+void ff_vector_fmul_window_sse(float *dst, const float *src0,
+                               const float *src1, const float *win, int len);
+
+void ff_vector_fmul_add_sse(float *dst, const float *src0, const float *src1,
+                            const float *src2, int len);
+void ff_vector_fmul_add_avx(float *dst, const float *src0, const float *src1,
+                            const float *src2, int len);
+void ff_vector_fmul_add_fma3(float *dst, const float *src0, const float *src1,
+                             const float *src2, int len);
+
+void ff_vector_fmul_reverse_sse(float *dst, const float *src0,
+                                const float *src1, int len);
+void ff_vector_fmul_reverse_avx(float *dst, const float *src0,
+                                const float *src1, int len);
+void ff_vector_fmul_reverse_avx2(float *dst, const float *src0,
+                                 const float *src1, int len);
+
+float ff_scalarproduct_float_sse(const float *v1, const float *v2, int order);
+
+void ff_butterflies_float_sse(float *av_restrict src0, float *av_restrict src1, int len);
+
+av_cold void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_AMD3DNOWEXT(cpu_flags)) {
+        fdsp->vector_fmul_window = ff_vector_fmul_window_3dnowext;
+    }
+    if (EXTERNAL_SSE(cpu_flags)) {
+        fdsp->vector_fmul = ff_vector_fmul_sse;
+        fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_sse;
+        fdsp->vector_fmul_scalar = ff_vector_fmul_scalar_sse;
+        fdsp->vector_fmul_window = ff_vector_fmul_window_sse;
+        fdsp->vector_fmul_add    = ff_vector_fmul_add_sse;
+        fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_sse;
+        fdsp->scalarproduct_float = ff_scalarproduct_float_sse;
+        fdsp->butterflies_float   = ff_butterflies_float_sse;
+    }
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        fdsp->vector_dmul = ff_vector_dmul_sse2;
+        fdsp->vector_dmac_scalar = ff_vector_dmac_scalar_sse2;
+        fdsp->vector_dmul_scalar = ff_vector_dmul_scalar_sse2;
+    }
+    if (EXTERNAL_AVX_FAST(cpu_flags)) {
+        fdsp->vector_fmul = ff_vector_fmul_avx;
+        fdsp->vector_dmul = ff_vector_dmul_avx;
+        fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_avx;
+        fdsp->vector_dmul_scalar = ff_vector_dmul_scalar_avx;
+        fdsp->vector_dmac_scalar = ff_vector_dmac_scalar_avx;
+        fdsp->vector_fmul_add    = ff_vector_fmul_add_avx;
+        fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_avx;
+    }
+    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+        fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_avx2;
+    }
+    if (EXTERNAL_FMA3_FAST(cpu_flags)) {
+        fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_fma3;
+        fdsp->vector_fmul_add    = ff_vector_fmul_add_fma3;
+        fdsp->vector_dmac_scalar = ff_vector_dmac_scalar_fma3;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/imgutils.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/imgutils.asm
new file mode 100644
index 000000000..3cca56cdc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/imgutils.asm
@@ -0,0 +1,53 @@
+;*****************************************************************************
+;* Copyright 2016 Anton Khirnov
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION .text
+
+INIT_XMM sse4
+cglobal image_copy_plane_uc_from, 6, 7, 4, dst, dst_linesize, src, src_linesize, bw, height, rowpos
+    add dstq, bwq
+    add srcq, bwq
+    neg bwq
+
+.row_start:
+    mov rowposq, bwq
+
+.loop:
+    movntdqa m0, [srcq + rowposq + 0 * mmsize]
+    movntdqa m1, [srcq + rowposq + 1 * mmsize]
+    movntdqa m2, [srcq + rowposq + 2 * mmsize]
+    movntdqa m3, [srcq + rowposq + 3 * mmsize]
+
+    mova [dstq + rowposq + 0 * mmsize], m0
+    mova [dstq + rowposq + 1 * mmsize], m1
+    mova [dstq + rowposq + 2 * mmsize], m2
+    mova [dstq + rowposq + 3 * mmsize], m3
+
+    add rowposq, 4 * mmsize
+    jnz .loop
+
+    add srcq, src_linesizeq
+    add dstq, dst_linesizeq
+    dec heightd
+    jnz .row_start
+
+    RET
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/imgutils_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/imgutils_init.c
new file mode 100644
index 000000000..4ea398205
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/imgutils_init.c
@@ -0,0 +1,49 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "libavutil/cpu.h"
+#include "libavutil/error.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/imgutils_internal.h"
+#include "libavutil/internal.h"
+
+#include "cpu.h"
+
+void ff_image_copy_plane_uc_from_sse4(uint8_t *dst, ptrdiff_t dst_linesize,
+                                      const uint8_t *src, ptrdiff_t src_linesize,
+                                      ptrdiff_t bytewidth, int height);
+
+int ff_image_copy_plane_uc_from_x86(uint8_t       *dst, ptrdiff_t dst_linesize,
+                                    const uint8_t *src, ptrdiff_t src_linesize,
+                                    ptrdiff_t bytewidth, int height)
+{
+    int cpu_flags = av_get_cpu_flags();
+    ptrdiff_t bw_aligned = FFALIGN(bytewidth, 64);
+
+    if (EXTERNAL_SSE4(cpu_flags) &&
+        bw_aligned <= dst_linesize && bw_aligned <= src_linesize)
+        ff_image_copy_plane_uc_from_sse4(dst, dst_linesize, src, src_linesize,
+                                         bw_aligned, height);
+    else
+        return AVERROR(ENOSYS);
+
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/intmath.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/intmath.h
new file mode 100644
index 000000000..40743fd13
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/intmath.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2015 James Almer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_X86_INTMATH_H
+#define AVUTIL_X86_INTMATH_H
+
+#include <stdint.h>
+#include <stdlib.h>
+#if HAVE_FAST_CLZ
+#if defined(_MSC_VER)
+#include <intrin.h>
+#elif defined(__INTEL_COMPILER)
+#include <immintrin.h>
+#endif
+#endif
+#include "config.h"
+
+#if HAVE_FAST_CLZ
+#if (defined(__INTEL_COMPILER) && (__INTEL_COMPILER>=1216)) || defined(_MSC_VER)
+#   if defined(__INTEL_COMPILER)
+#       define ff_log2(x) (_bit_scan_reverse((x)|1))
+#   else
+#       define ff_log2 ff_log2_x86
+static av_always_inline av_const int ff_log2_x86(unsigned int v)
+{
+    unsigned long n;
+    _BitScanReverse(&n, v|1);
+    return n;
+}
+#   endif
+#   define ff_log2_16bit av_log2
+
+#if defined(__INTEL_COMPILER) || (defined(_MSC_VER) && (_MSC_VER >= 1700) && \
+                                  (defined(__BMI__) || !defined(__clang__)))
+#   define ff_ctz(v) _tzcnt_u32(v)
+
+#   if ARCH_X86_64
+#       define ff_ctzll(v) _tzcnt_u64(v)
+#   else
+#       define ff_ctzll ff_ctzll_x86
+static av_always_inline av_const int ff_ctzll_x86(long long v)
+{
+    return ((uint32_t)v == 0) ? _tzcnt_u32((uint32_t)(v >> 32)) + 32 : _tzcnt_u32((uint32_t)v);
+}
+#   endif
+#endif /* _MSC_VER */
+
+#endif /* __INTEL_COMPILER */
+
+#endif /* HAVE_FAST_CLZ */
+
+#if defined(__GNUC__)
+
+/* Our generic version of av_popcount is faster than GCC's built-in on
+ * CPUs that don't support the popcnt instruction.
+ */
+#if defined(__POPCNT__)
+    #define av_popcount   __builtin_popcount
+#if ARCH_X86_64
+    #define av_popcount64 __builtin_popcountll
+#endif
+
+#endif /* __POPCNT__ */
+
+#if defined(__BMI2__)
+
+#if AV_GCC_VERSION_AT_LEAST(5,1)
+#define av_mod_uintp2 __builtin_ia32_bzhi_si
+#elif HAVE_INLINE_ASM
+/* GCC releases before 5.1.0 have a broken bzhi builtin, so for those we
+ * implement it using inline assembly
+ */
+#define av_mod_uintp2 av_mod_uintp2_bmi2
+static av_always_inline av_const unsigned av_mod_uintp2_bmi2(unsigned a, unsigned p)
+{
+    if (av_builtin_constant_p(p))
+        return a & ((1 << p) - 1);
+    else {
+        unsigned x;
+        __asm__ ("bzhi %2, %1, %0 \n\t" : "=r"(x) : "rm"(a), "r"(p));
+        return x;
+    }
+}
+#endif /* AV_GCC_VERSION_AT_LEAST */
+
+#endif /* __BMI2__ */
+
+#if defined(__SSE2__) && !defined(__INTEL_COMPILER)
+
+#define av_clipd av_clipd_sse2
+static av_always_inline av_const double av_clipd_sse2(double a, double amin, double amax)
+{
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+    if (amin > amax) abort();
+#endif
+    __asm__ ("minsd %2, %0 \n\t"
+             "maxsd %1, %0 \n\t"
+             : "+&x"(a) : "xm"(amin), "xm"(amax));
+    return a;
+}
+
+#endif /* __SSE2__ */
+
+#if defined(__SSE__) && !defined(__INTEL_COMPILER)
+
+#define av_clipf av_clipf_sse
+static av_always_inline av_const float av_clipf_sse(float a, float amin, float amax)
+{
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+    if (amin > amax) abort();
+#endif
+    __asm__ ("minss %2, %0 \n\t"
+             "maxss %1, %0 \n\t"
+             : "+&x"(a) : "xm"(amin), "xm"(amax));
+    return a;
+}
+
+#endif /* __SSE__ */
+
+#endif /* __GNUC__ */
+
+#endif /* AVUTIL_X86_INTMATH_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/intreadwrite.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/intreadwrite.h
new file mode 100644
index 000000000..4061d1923
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/intreadwrite.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2010 Alexander Strange <astrange@ithinksw.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_X86_INTREADWRITE_H
+#define AVUTIL_X86_INTREADWRITE_H
+
+#include <stdint.h>
+#include "config.h"
+#include "libavutil/attributes.h"
+
+#if HAVE_MMX
+
+#if !HAVE_FAST_64BIT && defined(__MMX__)
+
+#define AV_COPY64 AV_COPY64
+static av_always_inline void AV_COPY64(void *d, const void *s)
+{
+    __asm__("movq   %1, %%mm0  \n\t"
+            "movq   %%mm0, %0  \n\t"
+            : "=m"(*(uint64_t*)d)
+            : "m" (*(const uint64_t*)s)
+            : "mm0");
+}
+
+#define AV_SWAP64 AV_SWAP64
+static av_always_inline void AV_SWAP64(void *a, void *b)
+{
+    __asm__("movq   %1, %%mm0  \n\t"
+            "movq   %0, %%mm1  \n\t"
+            "movq   %%mm0, %0  \n\t"
+            "movq   %%mm1, %1  \n\t"
+            : "+m"(*(uint64_t*)a), "+m"(*(uint64_t*)b)
+            ::"mm0", "mm1");
+}
+
+#define AV_ZERO64 AV_ZERO64
+static av_always_inline void AV_ZERO64(void *d)
+{
+    __asm__("pxor %%mm0, %%mm0  \n\t"
+            "movq %%mm0, %0     \n\t"
+            : "=m"(*(uint64_t*)d)
+            :: "mm0");
+}
+
+#endif /* !HAVE_FAST_64BIT && defined(__MMX__) */
+
+#ifdef __SSE__
+
+#define AV_COPY128 AV_COPY128
+static av_always_inline void AV_COPY128(void *d, const void *s)
+{
+    struct v {uint64_t v[2];};
+
+    __asm__("movaps   %1, %%xmm0  \n\t"
+            "movaps   %%xmm0, %0  \n\t"
+            : "=m"(*(struct v*)d)
+            : "m" (*(const struct v*)s)
+            : "xmm0");
+}
+
+#endif /* __SSE__ */
+
+#ifdef __SSE2__
+
+#define AV_ZERO128 AV_ZERO128
+static av_always_inline void AV_ZERO128(void *d)
+{
+    struct v {uint64_t v[2];};
+
+    __asm__("pxor %%xmm0, %%xmm0  \n\t"
+            "movdqa   %%xmm0, %0  \n\t"
+            : "=m"(*(struct v*)d)
+            :: "xmm0");
+}
+
+#endif /* __SSE2__ */
+
+#endif /* HAVE_MMX */
+
+#endif /* AVUTIL_X86_INTREADWRITE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/lls.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/lls.asm
new file mode 100644
index 000000000..317fba6fc
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/lls.asm
@@ -0,0 +1,290 @@
+;******************************************************************************
+;* linear least squares model
+;*
+;* Copyright (c) 2013 Loren Merritt
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "x86util.asm"
+
+SECTION .text
+
+%define MAX_VARS 32
+%define MAX_VARS_ALIGN (MAX_VARS+4)
+%define COVAR_STRIDE MAX_VARS_ALIGN*8
+%define COVAR(x,y) [covarq + (x)*8 + (y)*COVAR_STRIDE]
+
+struc LLSModel
+    .covariance:  resq MAX_VARS_ALIGN*MAX_VARS_ALIGN
+    .coeff:       resq MAX_VARS*MAX_VARS
+    .variance:    resq MAX_VARS
+    .indep_count: resd 1
+endstruc
+
+%macro ADDPD_MEM 2
+%if cpuflag(avx)
+    vaddpd %2, %2, %1
+%else
+    addpd  %2, %1
+%endif
+    mova   %1, %2
+%endmacro
+
+INIT_XMM sse2
+%define movdqa movaps
+cglobal update_lls, 2,5,8, ctx, var, i, j, covar2
+    %define covarq ctxq
+    mov     id, [ctxq + LLSModel.indep_count]
+    lea   varq, [varq + iq*8]
+    neg     iq
+    mov covar2q, covarq
+.loopi:
+    ; Compute all 3 pairwise products of a 2x2 block that lies on the diagonal
+    mova    m1, [varq + iq*8]
+    mova    m3, [varq + iq*8 + 16]
+    pshufd  m4, m1, q1010
+    pshufd  m5, m1, q3232
+    pshufd  m6, m3, q1010
+    pshufd  m7, m3, q3232
+    mulpd   m0, m1, m4
+    mulpd   m1, m1, m5
+    lea covarq, [covar2q + 16]
+    ADDPD_MEM COVAR(-2,0), m0
+    ADDPD_MEM COVAR(-2,1), m1
+    lea     jq, [iq + 2]
+    cmp     jd, -2
+    jg .skip4x4
+.loop4x4:
+    ; Compute all 16 pairwise products of a 4x4 block
+    mulpd   m0, m4, m3
+    mulpd   m1, m5, m3
+    mulpd   m2, m6, m3
+    mulpd   m3, m3, m7
+    ADDPD_MEM COVAR(0,0), m0
+    ADDPD_MEM COVAR(0,1), m1
+    ADDPD_MEM COVAR(0,2), m2
+    ADDPD_MEM COVAR(0,3), m3
+    mova    m3, [varq + jq*8 + 16]
+    mulpd   m0, m4, m3
+    mulpd   m1, m5, m3
+    mulpd   m2, m6, m3
+    mulpd   m3, m3, m7
+    ADDPD_MEM COVAR(2,0), m0
+    ADDPD_MEM COVAR(2,1), m1
+    ADDPD_MEM COVAR(2,2), m2
+    ADDPD_MEM COVAR(2,3), m3
+    mova    m3, [varq + jq*8 + 32]
+    add covarq, 32
+    add     jq, 4
+    cmp     jd, -2
+    jle .loop4x4
+.skip4x4:
+    test    jd, jd
+    jg .skip2x4
+    mulpd   m4, m3
+    mulpd   m5, m3
+    mulpd   m6, m3
+    mulpd   m7, m3
+    ADDPD_MEM COVAR(0,0), m4
+    ADDPD_MEM COVAR(0,1), m5
+    ADDPD_MEM COVAR(0,2), m6
+    ADDPD_MEM COVAR(0,3), m7
+.skip2x4:
+    add     iq, 4
+    add covar2q, 4*COVAR_STRIDE+32
+    cmp     id, -2
+    jle .loopi
+    test    id, id
+    jg .ret
+    mov     jq, iq
+    %define covarq covar2q
+.loop2x1:
+    movsd   m0, [varq + iq*8]
+    movlhps m0, m0
+    mulpd   m0, [varq + jq*8]
+    ADDPD_MEM COVAR(0,0), m0
+    inc     iq
+    add covarq, COVAR_STRIDE
+    test    id, id
+    jle .loop2x1
+.ret:
+    REP_RET
+
+%macro UPDATE_LLS 0
+cglobal update_lls, 3,6,8, ctx, var, count, i, j, count2
+    %define covarq ctxq
+    mov  countd, [ctxq + LLSModel.indep_count]
+    lea count2d, [countq-2]
+    xor     id, id
+.loopi:
+    ; Compute all 10 pairwise products of a 4x4 block that lies on the diagonal
+    mova    ymm1, [varq + iq*8]
+    vbroadcastsd ymm4, [varq + iq*8]
+    vbroadcastsd ymm5, [varq + iq*8 + 8]
+    vbroadcastsd ymm6, [varq + iq*8 + 16]
+    vbroadcastsd ymm7, [varq + iq*8 + 24]
+    vextractf128 xmm3, ymm1, 1
+%if cpuflag(fma3)
+    mova ymm0, COVAR(iq  ,0)
+    mova xmm2, COVAR(iq+2,2)
+    fmaddpd ymm0, ymm1, ymm4, ymm0
+    fmaddpd xmm2, xmm3, xmm6, xmm2
+    fmaddpd ymm1, ymm5, ymm1, COVAR(iq  ,1)
+    fmaddpd xmm3, xmm7, xmm3, COVAR(iq+2,3)
+    mova COVAR(iq  ,0), ymm0
+    mova COVAR(iq  ,1), ymm1
+    mova COVAR(iq+2,2), xmm2
+    mova COVAR(iq+2,3), xmm3
+%else
+    vmulpd  ymm0, ymm1, ymm4
+    vmulpd  ymm1, ymm1, ymm5
+    vmulpd  xmm2, xmm3, xmm6
+    vmulpd  xmm3, xmm3, xmm7
+    ADDPD_MEM COVAR(iq  ,0), ymm0
+    ADDPD_MEM COVAR(iq  ,1), ymm1
+    ADDPD_MEM COVAR(iq+2,2), xmm2
+    ADDPD_MEM COVAR(iq+2,3), xmm3
+%endif ; cpuflag(fma3)
+    lea     jd, [iq + 4]
+    cmp     jd, count2d
+    jg .skip4x4
+.loop4x4:
+    ; Compute all 16 pairwise products of a 4x4 block
+    mova    ymm3, [varq + jq*8]
+%if cpuflag(fma3)
+    mova ymm0, COVAR(jq, 0)
+    mova ymm1, COVAR(jq, 1)
+    mova ymm2, COVAR(jq, 2)
+    fmaddpd ymm0, ymm3, ymm4, ymm0
+    fmaddpd ymm1, ymm3, ymm5, ymm1
+    fmaddpd ymm2, ymm3, ymm6, ymm2
+    fmaddpd ymm3, ymm7, ymm3, COVAR(jq,3)
+    mova COVAR(jq, 0), ymm0
+    mova COVAR(jq, 1), ymm1
+    mova COVAR(jq, 2), ymm2
+    mova COVAR(jq, 3), ymm3
+%else
+    vmulpd  ymm0, ymm3, ymm4
+    vmulpd  ymm1, ymm3, ymm5
+    vmulpd  ymm2, ymm3, ymm6
+    vmulpd  ymm3, ymm3, ymm7
+    ADDPD_MEM COVAR(jq,0), ymm0
+    ADDPD_MEM COVAR(jq,1), ymm1
+    ADDPD_MEM COVAR(jq,2), ymm2
+    ADDPD_MEM COVAR(jq,3), ymm3
+%endif ; cpuflag(fma3)
+    add     jd, 4
+    cmp     jd, count2d
+    jle .loop4x4
+.skip4x4:
+    cmp     jd, countd
+    jg .skip2x4
+    mova    xmm3, [varq + jq*8]
+%if cpuflag(fma3)
+    mova xmm0, COVAR(jq, 0)
+    mova xmm1, COVAR(jq, 1)
+    mova xmm2, COVAR(jq, 2)
+    fmaddpd xmm0, xmm3, xmm4, xmm0
+    fmaddpd xmm1, xmm3, xmm5, xmm1
+    fmaddpd xmm2, xmm3, xmm6, xmm2
+    fmaddpd xmm3, xmm7, xmm3, COVAR(jq,3)
+    mova COVAR(jq, 0), xmm0
+    mova COVAR(jq, 1), xmm1
+    mova COVAR(jq, 2), xmm2
+    mova COVAR(jq, 3), xmm3
+%else
+    vmulpd  xmm0, xmm3, xmm4
+    vmulpd  xmm1, xmm3, xmm5
+    vmulpd  xmm2, xmm3, xmm6
+    vmulpd  xmm3, xmm3, xmm7
+    ADDPD_MEM COVAR(jq,0), xmm0
+    ADDPD_MEM COVAR(jq,1), xmm1
+    ADDPD_MEM COVAR(jq,2), xmm2
+    ADDPD_MEM COVAR(jq,3), xmm3
+%endif ; cpuflag(fma3)
+.skip2x4:
+    add     id, 4
+    add covarq, 4*COVAR_STRIDE
+    cmp     id, count2d
+    jle .loopi
+    cmp     id, countd
+    jg .ret
+    mov     jd, id
+.loop2x1:
+    vmovddup xmm0, [varq + iq*8]
+%if cpuflag(fma3)
+    mova xmm1, [varq + jq*8]
+    fmaddpd xmm0, xmm1, xmm0, COVAR(jq,0)
+    mova COVAR(jq,0), xmm0
+%else
+    vmulpd   xmm0, [varq + jq*8]
+    ADDPD_MEM COVAR(jq,0), xmm0
+%endif ; cpuflag(fma3)
+    inc     id
+    add covarq, COVAR_STRIDE
+    cmp     id, countd
+    jle .loop2x1
+.ret:
+    REP_RET
+%endmacro ; UPDATE_LLS
+
+%if HAVE_AVX_EXTERNAL
+INIT_YMM avx
+UPDATE_LLS
+%endif
+%if HAVE_FMA3_EXTERNAL
+INIT_YMM fma3
+UPDATE_LLS
+%endif
+
+INIT_XMM sse2
+cglobal evaluate_lls, 3,4,2, ctx, var, order, i
+    ; This function is often called on the same buffer as update_lls, but with
+    ; an offset. They can't both be aligned.
+    ; Load halves rather than movu to avoid store-forwarding stalls, since the
+    ; input was initialized immediately prior to this function using scalar math.
+    %define coefsq ctxq
+    mov     id, orderd
+    imul    orderd, MAX_VARS
+    lea     coefsq, [ctxq + LLSModel.coeff + orderq*8]
+    movsd   m0, [varq]
+    movhpd  m0, [varq + 8]
+    mulpd   m0, [coefsq]
+    lea coefsq, [coefsq + iq*8]
+    lea   varq, [varq + iq*8]
+    neg     iq
+    add     iq, 2
+.loop:
+    movsd   m1, [varq + iq*8]
+    movhpd  m1, [varq + iq*8 + 8]
+    mulpd   m1, [coefsq + iq*8]
+    addpd   m0, m1
+    add     iq, 2
+    jl .loop
+    jg .skip1
+    movsd   m1, [varq + iq*8]
+    mulsd   m1, [coefsq + iq*8]
+    addpd   m0, m1
+.skip1:
+    movhlps m1, m0
+    addsd   m0, m1
+%if ARCH_X86_32
+    movsd  r0m, m0
+    fld   qword r0m
+%endif
+    RET
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/lls_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/lls_init.c
new file mode 100644
index 000000000..1c5dca42d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/lls_init.c
@@ -0,0 +1,45 @@
+/*
+ * linear least squares model
+ *
+ * Copyright (c) 2013 Loren Merritt
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/lls.h"
+#include "libavutil/x86/cpu.h"
+
+void ff_update_lls_sse2(LLSModel *m, const double *var);
+void ff_update_lls_avx(LLSModel *m, const double *var);
+void ff_update_lls_fma3(LLSModel *m, const double *var);
+double ff_evaluate_lls_sse2(LLSModel *m, const double *var, int order);
+
+av_cold void ff_init_lls_x86(LLSModel *m)
+{
+    int cpu_flags = av_get_cpu_flags();
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        m->update_lls = ff_update_lls_sse2;
+        if (m->indep_count >= 4)
+            m->evaluate_lls = ff_evaluate_lls_sse2;
+    }
+    if (EXTERNAL_AVX_FAST(cpu_flags)) {
+        m->update_lls = ff_update_lls_avx;
+    }
+    if (EXTERNAL_FMA3_FAST(cpu_flags)) {
+        m->update_lls = ff_update_lls_fma3;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/pixelutils.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/pixelutils.h
new file mode 100644
index 000000000..876cf4605
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/pixelutils.h
@@ -0,0 +1,26 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_X86_PIXELUTILS_H
+#define AVUTIL_X86_PIXELUTILS_H
+
+#include "libavutil/pixelutils.h"
+
+void ff_pixelutils_sad_init_x86(av_pixelutils_sad_fn *sad, int aligned);
+
+#endif /* AVUTIL_X86_PIXELUTILS_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/pixelutils_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/pixelutils_init.c
new file mode 100644
index 000000000..184a3a4a9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/pixelutils_init.c
@@ -0,0 +1,94 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "pixelutils.h"
+#include "cpu.h"
+
+int ff_pixelutils_sad_8x8_mmx(const uint8_t *src1, ptrdiff_t stride1,
+                              const uint8_t *src2, ptrdiff_t stride2);
+int ff_pixelutils_sad_8x8_mmxext(const uint8_t *src1, ptrdiff_t stride1,
+                                 const uint8_t *src2, ptrdiff_t stride2);
+
+int ff_pixelutils_sad_16x16_mmxext(const uint8_t *src1, ptrdiff_t stride1,
+                                   const uint8_t *src2, ptrdiff_t stride2);
+int ff_pixelutils_sad_16x16_sse2(const uint8_t *src1, ptrdiff_t stride1,
+                                 const uint8_t *src2, ptrdiff_t stride2);
+int ff_pixelutils_sad_a_16x16_sse2(const uint8_t *src1, ptrdiff_t stride1,
+                                   const uint8_t *src2, ptrdiff_t stride2);
+int ff_pixelutils_sad_u_16x16_sse2(const uint8_t *src1, ptrdiff_t stride1,
+                                   const uint8_t *src2, ptrdiff_t stride2);
+
+int ff_pixelutils_sad_32x32_sse2(const uint8_t *src1, ptrdiff_t stride1,
+                                 const uint8_t *src2, ptrdiff_t stride2);
+int ff_pixelutils_sad_a_32x32_sse2(const uint8_t *src1, ptrdiff_t stride1,
+                                   const uint8_t *src2, ptrdiff_t stride2);
+int ff_pixelutils_sad_u_32x32_sse2(const uint8_t *src1, ptrdiff_t stride1,
+                                   const uint8_t *src2, ptrdiff_t stride2);
+
+int ff_pixelutils_sad_32x32_avx2(const uint8_t *src1, ptrdiff_t stride1,
+                                 const uint8_t *src2, ptrdiff_t stride2);
+int ff_pixelutils_sad_a_32x32_avx2(const uint8_t *src1, ptrdiff_t stride1,
+                                   const uint8_t *src2, ptrdiff_t stride2);
+int ff_pixelutils_sad_u_32x32_avx2(const uint8_t *src1, ptrdiff_t stride1,
+                                   const uint8_t *src2, ptrdiff_t stride2);
+
+void ff_pixelutils_sad_init_x86(av_pixelutils_sad_fn *sad, int aligned)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        sad[2] = ff_pixelutils_sad_8x8_mmx;
+    }
+
+    // The best way to use SSE2 would be to do 2 SADs in parallel,
+    // but we'd have to modify the pixelutils API to return SIMD functions.
+
+    // It's probably not faster to shuffle data around
+    // to get two lines of 8 pixels into a single 16byte register,
+    // so just use the MMX 8x8 version even when SSE2 is available.
+    if (EXTERNAL_MMXEXT(cpu_flags)) {
+        sad[2] = ff_pixelutils_sad_8x8_mmxext;
+        sad[3] = ff_pixelutils_sad_16x16_mmxext;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        switch (aligned) {
+        case 0: sad[3] = ff_pixelutils_sad_16x16_sse2;   break; // src1 unaligned, src2 unaligned
+        case 1: sad[3] = ff_pixelutils_sad_u_16x16_sse2; break; // src1   aligned, src2 unaligned
+        case 2: sad[3] = ff_pixelutils_sad_a_16x16_sse2; break; // src1   aligned, src2   aligned
+        }
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        switch (aligned) {
+        case 0: sad[4] = ff_pixelutils_sad_32x32_sse2;   break; // src1 unaligned, src2 unaligned
+        case 1: sad[4] = ff_pixelutils_sad_u_32x32_sse2; break; // src1   aligned, src2 unaligned
+        case 2: sad[4] = ff_pixelutils_sad_a_32x32_sse2; break; // src1   aligned, src2   aligned
+        }
+    }
+
+    if (EXTERNAL_AVX2_FAST(cpu_flags)) {
+        switch (aligned) {
+        case 0: sad[4] = ff_pixelutils_sad_32x32_avx2;   break; // src1 unaligned, src2 unaligned
+        case 1: sad[4] = ff_pixelutils_sad_u_32x32_avx2; break; // src1   aligned, src2 unaligned
+        case 2: sad[4] = ff_pixelutils_sad_a_32x32_avx2; break; // src1   aligned, src2   aligned
+        }
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/timer.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/timer.h
new file mode 100644
index 000000000..4d1e88def
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/timer.h
@@ -0,0 +1,50 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_X86_TIMER_H
+#define AVUTIL_X86_TIMER_H
+
+#include <stdint.h>
+
+#if HAVE_INLINE_ASM
+
+#define FF_TIMER_UNITS "decicycles"
+#define AV_READ_TIME read_time
+
+static inline uint64_t read_time(void)
+{
+    uint32_t a, d;
+    __asm__ volatile(
+#if ARCH_X86_64 || defined(__SSE2__)
+                     "lfence \n\t"
+#endif
+                     "rdtsc  \n\t"
+                     : "=a" (a), "=d" (d));
+    return ((uint64_t)d << 32) + a;
+}
+
+#elif HAVE_RDTSC
+
+#include <intrin.h>
+#define AV_READ_TIME __rdtsc
+
+#endif /* HAVE_INLINE_ASM */
+
+#endif /* AVUTIL_X86_TIMER_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/w64xmmtest.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/w64xmmtest.h
new file mode 100644
index 000000000..a4a05b041
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/w64xmmtest.h
@@ -0,0 +1,78 @@
+/*
+ * check XMM registers for clobbers on Win64
+ * Copyright (c) 2008 Ramiro Polla <ramiro.polla@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_X86_W64XMMTEST_H
+#define AVUTIL_X86_W64XMMTEST_H
+
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+
+#include "libavutil/bswap.h"
+
+#define storexmmregs(mem)               \
+    __asm__ volatile(                   \
+        "movups %%xmm6 , 0x00(%0)\n\t"  \
+        "movups %%xmm7 , 0x10(%0)\n\t"  \
+        "movups %%xmm8 , 0x20(%0)\n\t"  \
+        "movups %%xmm9 , 0x30(%0)\n\t"  \
+        "movups %%xmm10, 0x40(%0)\n\t"  \
+        "movups %%xmm11, 0x50(%0)\n\t"  \
+        "movups %%xmm12, 0x60(%0)\n\t"  \
+        "movups %%xmm13, 0x70(%0)\n\t"  \
+        "movups %%xmm14, 0x80(%0)\n\t"  \
+        "movups %%xmm15, 0x90(%0)\n\t"  \
+        :: "r"(mem) : "memory")
+
+#define testxmmclobbers(func, ctx, ...)                         \
+    uint64_t xmm[2][10][2];                                     \
+    int ret;                                                    \
+    storexmmregs(xmm[0]);                                       \
+    ret = __real_ ## func(ctx, __VA_ARGS__);                    \
+    storexmmregs(xmm[1]);                                       \
+    if (memcmp(xmm[0], xmm[1], sizeof(xmm[0]))) {               \
+        int i;                                                  \
+        av_log(ctx, AV_LOG_ERROR,                               \
+               "XMM REGS CLOBBERED IN %s!\n", #func);           \
+        for (i = 0; i < 10; i ++)                               \
+            if (xmm[0][i][0] != xmm[1][i][0] ||                 \
+                xmm[0][i][1] != xmm[1][i][1]) {                 \
+                av_log(ctx, AV_LOG_ERROR,                       \
+                       "xmm%-2d = %016"PRIx64"%016"PRIx64"\n",  \
+                       6 + i, av_bswap64(xmm[0][i][0]),         \
+                       av_bswap64(xmm[0][i][1]));               \
+                av_log(ctx, AV_LOG_ERROR,                       \
+                         "     -> %016"PRIx64"%016"PRIx64"\n",  \
+                       av_bswap64(xmm[1][i][0]),                \
+                       av_bswap64(xmm[1][i][1]));               \
+            }                                                   \
+        abort();                                                \
+    }                                                           \
+    return ret
+
+#define wrap(func)      \
+int __real_ ## func;    \
+int __wrap_ ## func;    \
+int __wrap_ ## func
+
+#endif /* AVUTIL_X86_W64XMMTEST_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/x86inc.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/x86inc.asm
new file mode 100644
index 000000000..5044ee86f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/x86inc.asm
@@ -0,0 +1,1701 @@
+;*****************************************************************************
+;* x86inc.asm: x264asm abstraction layer
+;*****************************************************************************
+;* Copyright (C) 2005-2018 x264 project
+;*
+;* Authors: Loren Merritt <lorenm@u.washington.edu>
+;*          Henrik Gramner <henrik@gramner.com>
+;*          Anton Mitrofanov <BugMaster@narod.ru>
+;*          Fiona Glaser <fiona@x264.com>
+;*
+;* Permission to use, copy, modify, and/or distribute this software for any
+;* purpose with or without fee is hereby granted, provided that the above
+;* copyright notice and this permission notice appear in all copies.
+;*
+;* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+;* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+;* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+;* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+;* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+;* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+;* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+;*****************************************************************************
+
+; This is a header file for the x264ASM assembly language, which uses
+; NASM/YASM syntax combined with a large number of macros to provide easy
+; abstraction between different calling conventions (x86_32, win64, linux64).
+; It also has various other useful features to simplify writing the kind of
+; DSP functions that are most often used in x264.
+
+; Unlike the rest of x264, this file is available under an ISC license, as it
+; has significant usefulness outside of x264 and we want it to be available
+; to the largest audience possible.  Of course, if you modify it for your own
+; purposes to add a new feature, we strongly encourage contributing a patch
+; as this feature might be useful for others as well.  Send patches or ideas
+; to x264-devel@videolan.org .
+
+%ifndef private_prefix
+    %define private_prefix x264
+%endif
+
+%ifndef public_prefix
+    %define public_prefix private_prefix
+%endif
+
+%if HAVE_ALIGNED_STACK
+    %define STACK_ALIGNMENT 16
+%endif
+%ifndef STACK_ALIGNMENT
+    %if ARCH_X86_64
+        %define STACK_ALIGNMENT 16
+    %else
+        %define STACK_ALIGNMENT 4
+    %endif
+%endif
+
+%define WIN64  0
+%define UNIX64 0
+%if ARCH_X86_64
+    %ifidn __OUTPUT_FORMAT__,win32
+        %define WIN64  1
+    %elifidn __OUTPUT_FORMAT__,win64
+        %define WIN64  1
+    %elifidn __OUTPUT_FORMAT__,x64
+        %define WIN64  1
+    %else
+        %define UNIX64 1
+    %endif
+%endif
+
+%define FORMAT_ELF 0
+%ifidn __OUTPUT_FORMAT__,elf
+    %define FORMAT_ELF 1
+%elifidn __OUTPUT_FORMAT__,elf32
+    %define FORMAT_ELF 1
+%elifidn __OUTPUT_FORMAT__,elf64
+    %define FORMAT_ELF 1
+%endif
+
+%ifdef PREFIX
+    %define mangle(x) _ %+ x
+%else
+    %define mangle(x) x
+%endif
+
+; aout does not support align=
+; NOTE: This section is out of sync with x264, in order to
+; keep supporting OS/2.
+%macro SECTION_RODATA 0-1 16
+    %ifidn __OUTPUT_FORMAT__,aout
+        SECTION .text
+    %elifidn __OUTPUT_FORMAT__,coff
+        SECTION .text
+    %elifidn __OUTPUT_FORMAT__,win32
+        SECTION .rdata align=%1
+    %elif WIN64
+        SECTION .rdata align=%1
+    %else
+        SECTION .rodata align=%1
+    %endif
+%endmacro
+
+%if WIN64
+    %define PIC
+%elif ARCH_X86_64 == 0
+; x86_32 doesn't require PIC.
+; Some distros prefer shared objects to be PIC, but nothing breaks if
+; the code contains a few textrels, so we'll skip that complexity.
+    %undef PIC
+%endif
+%ifdef PIC
+    default rel
+%endif
+
+%macro CPUNOP 1
+    %if HAVE_CPUNOP
+        CPU %1
+    %endif
+%endmacro
+
+; Macros to eliminate most code duplication between x86_32 and x86_64:
+; Currently this works only for leaf functions which load all their arguments
+; into registers at the start, and make no other use of the stack. Luckily that
+; covers most of x264's asm.
+
+; PROLOGUE:
+; %1 = number of arguments. loads them from stack if needed.
+; %2 = number of registers used. pushes callee-saved regs if needed.
+; %3 = number of xmm registers used. pushes callee-saved xmm regs if needed.
+; %4 = (optional) stack size to be allocated. The stack will be aligned before
+;      allocating the specified stack size. If the required stack alignment is
+;      larger than the known stack alignment the stack will be manually aligned
+;      and an extra register will be allocated to hold the original stack
+;      pointer (to not invalidate r0m etc.). To prevent the use of an extra
+;      register as stack pointer, request a negative stack size.
+; %4+/%5+ = list of names to define to registers
+; PROLOGUE can also be invoked by adding the same options to cglobal
+
+; e.g.
+; cglobal foo, 2,3,7,0x40, dst, src, tmp
+; declares a function (foo) that automatically loads two arguments (dst and
+; src) into registers, uses one additional register (tmp) plus 7 vector
+; registers (m0-m6) and allocates 0x40 bytes of stack space.
+
+; TODO Some functions can use some args directly from the stack. If they're the
+; last args then you can just not declare them, but if they're in the middle
+; we need more flexible macro.
+
+; RET:
+; Pops anything that was pushed by PROLOGUE, and returns.
+
+; REP_RET:
+; Use this instead of RET if it's a branch target.
+
+; registers:
+; rN and rNq are the native-size register holding function argument N
+; rNd, rNw, rNb are dword, word, and byte size
+; rNh is the high 8 bits of the word size
+; rNm is the original location of arg N (a register or on the stack), dword
+; rNmp is native size
+
+%macro DECLARE_REG 2-3
+    %define r%1q %2
+    %define r%1d %2d
+    %define r%1w %2w
+    %define r%1b %2b
+    %define r%1h %2h
+    %define %2q %2
+    %if %0 == 2
+        %define r%1m  %2d
+        %define r%1mp %2
+    %elif ARCH_X86_64 ; memory
+        %define r%1m [rstk + stack_offset + %3]
+        %define r%1mp qword r %+ %1 %+ m
+    %else
+        %define r%1m [rstk + stack_offset + %3]
+        %define r%1mp dword r %+ %1 %+ m
+    %endif
+    %define r%1  %2
+%endmacro
+
+%macro DECLARE_REG_SIZE 3
+    %define r%1q r%1
+    %define e%1q r%1
+    %define r%1d e%1
+    %define e%1d e%1
+    %define r%1w %1
+    %define e%1w %1
+    %define r%1h %3
+    %define e%1h %3
+    %define r%1b %2
+    %define e%1b %2
+    %if ARCH_X86_64 == 0
+        %define r%1 e%1
+    %endif
+%endmacro
+
+DECLARE_REG_SIZE ax, al, ah
+DECLARE_REG_SIZE bx, bl, bh
+DECLARE_REG_SIZE cx, cl, ch
+DECLARE_REG_SIZE dx, dl, dh
+DECLARE_REG_SIZE si, sil, null
+DECLARE_REG_SIZE di, dil, null
+DECLARE_REG_SIZE bp, bpl, null
+
+; t# defines for when per-arch register allocation is more complex than just function arguments
+
+%macro DECLARE_REG_TMP 1-*
+    %assign %%i 0
+    %rep %0
+        CAT_XDEFINE t, %%i, r%1
+        %assign %%i %%i+1
+        %rotate 1
+    %endrep
+%endmacro
+
+%macro DECLARE_REG_TMP_SIZE 0-*
+    %rep %0
+        %define t%1q t%1 %+ q
+        %define t%1d t%1 %+ d
+        %define t%1w t%1 %+ w
+        %define t%1h t%1 %+ h
+        %define t%1b t%1 %+ b
+        %rotate 1
+    %endrep
+%endmacro
+
+DECLARE_REG_TMP_SIZE 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14
+
+%if ARCH_X86_64
+    %define gprsize 8
+%else
+    %define gprsize 4
+%endif
+
+%macro PUSH 1
+    push %1
+    %ifidn rstk, rsp
+        %assign stack_offset stack_offset+gprsize
+    %endif
+%endmacro
+
+%macro POP 1
+    pop %1
+    %ifidn rstk, rsp
+        %assign stack_offset stack_offset-gprsize
+    %endif
+%endmacro
+
+%macro PUSH_IF_USED 1-*
+    %rep %0
+        %if %1 < regs_used
+            PUSH r%1
+        %endif
+        %rotate 1
+    %endrep
+%endmacro
+
+%macro POP_IF_USED 1-*
+    %rep %0
+        %if %1 < regs_used
+            pop r%1
+        %endif
+        %rotate 1
+    %endrep
+%endmacro
+
+%macro LOAD_IF_USED 1-*
+    %rep %0
+        %if %1 < num_args
+            mov r%1, r %+ %1 %+ mp
+        %endif
+        %rotate 1
+    %endrep
+%endmacro
+
+%macro SUB 2
+    sub %1, %2
+    %ifidn %1, rstk
+        %assign stack_offset stack_offset+(%2)
+    %endif
+%endmacro
+
+%macro ADD 2
+    add %1, %2
+    %ifidn %1, rstk
+        %assign stack_offset stack_offset-(%2)
+    %endif
+%endmacro
+
+%macro movifnidn 2
+    %ifnidn %1, %2
+        mov %1, %2
+    %endif
+%endmacro
+
+%macro movsxdifnidn 2
+    %ifnidn %1, %2
+        movsxd %1, %2
+    %endif
+%endmacro
+
+%macro ASSERT 1
+    %if (%1) == 0
+        %error assertion ``%1'' failed
+    %endif
+%endmacro
+
+%macro DEFINE_ARGS 0-*
+    %ifdef n_arg_names
+        %assign %%i 0
+        %rep n_arg_names
+            CAT_UNDEF arg_name %+ %%i, q
+            CAT_UNDEF arg_name %+ %%i, d
+            CAT_UNDEF arg_name %+ %%i, w
+            CAT_UNDEF arg_name %+ %%i, h
+            CAT_UNDEF arg_name %+ %%i, b
+            CAT_UNDEF arg_name %+ %%i, m
+            CAT_UNDEF arg_name %+ %%i, mp
+            CAT_UNDEF arg_name, %%i
+            %assign %%i %%i+1
+        %endrep
+    %endif
+
+    %xdefine %%stack_offset stack_offset
+    %undef stack_offset ; so that the current value of stack_offset doesn't get baked in by xdefine
+    %assign %%i 0
+    %rep %0
+        %xdefine %1q r %+ %%i %+ q
+        %xdefine %1d r %+ %%i %+ d
+        %xdefine %1w r %+ %%i %+ w
+        %xdefine %1h r %+ %%i %+ h
+        %xdefine %1b r %+ %%i %+ b
+        %xdefine %1m r %+ %%i %+ m
+        %xdefine %1mp r %+ %%i %+ mp
+        CAT_XDEFINE arg_name, %%i, %1
+        %assign %%i %%i+1
+        %rotate 1
+    %endrep
+    %xdefine stack_offset %%stack_offset
+    %assign n_arg_names %0
+%endmacro
+
+%define required_stack_alignment ((mmsize + 15) & ~15)
+%define vzeroupper_required (mmsize > 16 && (ARCH_X86_64 == 0 || xmm_regs_used > 16 || notcpuflag(avx512)))
+%define high_mm_regs (16*cpuflag(avx512))
+
+%macro ALLOC_STACK 1-2 0 ; stack_size, n_xmm_regs (for win64 only)
+    %ifnum %1
+        %if %1 != 0
+            %assign %%pad 0
+            %assign stack_size %1
+            %if stack_size < 0
+                %assign stack_size -stack_size
+            %endif
+            %if WIN64
+                %assign %%pad %%pad + 32 ; shadow space
+                %if mmsize != 8
+                    %assign xmm_regs_used %2
+                    %if xmm_regs_used > 8
+                        %assign %%pad %%pad + (xmm_regs_used-8)*16 ; callee-saved xmm registers
+                    %endif
+                %endif
+            %endif
+            %if required_stack_alignment <= STACK_ALIGNMENT
+                ; maintain the current stack alignment
+                %assign stack_size_padded stack_size + %%pad + ((-%%pad-stack_offset-gprsize) & (STACK_ALIGNMENT-1))
+                SUB rsp, stack_size_padded
+            %else
+                %assign %%reg_num (regs_used - 1)
+                %xdefine rstk r %+ %%reg_num
+                ; align stack, and save original stack location directly above
+                ; it, i.e. in [rsp+stack_size_padded], so we can restore the
+                ; stack in a single instruction (i.e. mov rsp, rstk or mov
+                ; rsp, [rsp+stack_size_padded])
+                %if %1 < 0 ; need to store rsp on stack
+                    %xdefine rstkm [rsp + stack_size + %%pad]
+                    %assign %%pad %%pad + gprsize
+                %else ; can keep rsp in rstk during whole function
+                    %xdefine rstkm rstk
+                %endif
+                %assign stack_size_padded stack_size + ((%%pad + required_stack_alignment-1) & ~(required_stack_alignment-1))
+                mov rstk, rsp
+                and rsp, ~(required_stack_alignment-1)
+                sub rsp, stack_size_padded
+                movifnidn rstkm, rstk
+            %endif
+            WIN64_PUSH_XMM
+        %endif
+    %endif
+%endmacro
+
+%macro SETUP_STACK_POINTER 1
+    %ifnum %1
+        %if %1 != 0 && required_stack_alignment > STACK_ALIGNMENT
+            %if %1 > 0
+                ; Reserve an additional register for storing the original stack pointer, but avoid using
+                ; eax/rax for this purpose since it can potentially get overwritten as a return value.
+                %assign regs_used (regs_used + 1)
+                %if ARCH_X86_64 && regs_used == 7
+                    %assign regs_used 8
+                %elif ARCH_X86_64 == 0 && regs_used == 1
+                    %assign regs_used 2
+                %endif
+            %endif
+            %if ARCH_X86_64 && regs_used < 5 + UNIX64 * 3
+                ; Ensure that we don't clobber any registers containing arguments. For UNIX64 we also preserve r6 (rax)
+                ; since it's used as a hidden argument in vararg functions to specify the number of vector registers used.
+                %assign regs_used 5 + UNIX64 * 3
+            %endif
+        %endif
+    %endif
+%endmacro
+
+%macro DEFINE_ARGS_INTERNAL 3+
+    %ifnum %2
+        DEFINE_ARGS %3
+    %elif %1 == 4
+        DEFINE_ARGS %2
+    %elif %1 > 4
+        DEFINE_ARGS %2, %3
+    %endif
+%endmacro
+
+%if WIN64 ; Windows x64 ;=================================================
+
+DECLARE_REG 0,  rcx
+DECLARE_REG 1,  rdx
+DECLARE_REG 2,  R8
+DECLARE_REG 3,  R9
+DECLARE_REG 4,  R10, 40
+DECLARE_REG 5,  R11, 48
+DECLARE_REG 6,  rax, 56
+DECLARE_REG 7,  rdi, 64
+DECLARE_REG 8,  rsi, 72
+DECLARE_REG 9,  rbx, 80
+DECLARE_REG 10, rbp, 88
+DECLARE_REG 11, R14, 96
+DECLARE_REG 12, R15, 104
+DECLARE_REG 13, R12, 112
+DECLARE_REG 14, R13, 120
+
+%macro PROLOGUE 2-5+ 0 ; #args, #regs, #xmm_regs, [stack_size,] arg_names...
+    %assign num_args %1
+    %assign regs_used %2
+    ASSERT regs_used >= num_args
+    SETUP_STACK_POINTER %4
+    ASSERT regs_used <= 15
+    PUSH_IF_USED 7, 8, 9, 10, 11, 12, 13, 14
+    ALLOC_STACK %4, %3
+    %if mmsize != 8 && stack_size == 0
+        WIN64_SPILL_XMM %3
+    %endif
+    LOAD_IF_USED 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
+    DEFINE_ARGS_INTERNAL %0, %4, %5
+%endmacro
+
+%macro WIN64_PUSH_XMM 0
+    ; Use the shadow space to store XMM6 and XMM7, the rest needs stack space allocated.
+    %if xmm_regs_used > 6 + high_mm_regs
+        movaps [rstk + stack_offset +  8], xmm6
+    %endif
+    %if xmm_regs_used > 7 + high_mm_regs
+        movaps [rstk + stack_offset + 24], xmm7
+    %endif
+    %assign %%xmm_regs_on_stack xmm_regs_used - high_mm_regs - 8
+    %if %%xmm_regs_on_stack > 0
+        %assign %%i 8
+        %rep %%xmm_regs_on_stack
+            movaps [rsp + (%%i-8)*16 + stack_size + 32], xmm %+ %%i
+            %assign %%i %%i+1
+        %endrep
+    %endif
+%endmacro
+
+%macro WIN64_SPILL_XMM 1
+    %assign xmm_regs_used %1
+    ASSERT xmm_regs_used <= 16 + high_mm_regs
+    %assign %%xmm_regs_on_stack xmm_regs_used - high_mm_regs - 8
+    %if %%xmm_regs_on_stack > 0
+        ; Allocate stack space for callee-saved xmm registers plus shadow space and align the stack.
+        %assign %%pad %%xmm_regs_on_stack*16 + 32
+        %assign stack_size_padded %%pad + ((-%%pad-stack_offset-gprsize) & (STACK_ALIGNMENT-1))
+        SUB rsp, stack_size_padded
+    %endif
+    WIN64_PUSH_XMM
+%endmacro
+
+%macro WIN64_RESTORE_XMM_INTERNAL 0
+    %assign %%pad_size 0
+    %assign %%xmm_regs_on_stack xmm_regs_used - high_mm_regs - 8
+    %if %%xmm_regs_on_stack > 0
+        %assign %%i xmm_regs_used - high_mm_regs
+        %rep %%xmm_regs_on_stack
+            %assign %%i %%i-1
+            movaps xmm %+ %%i, [rsp + (%%i-8)*16 + stack_size + 32]
+        %endrep
+    %endif
+    %if stack_size_padded > 0
+        %if stack_size > 0 && required_stack_alignment > STACK_ALIGNMENT
+            mov rsp, rstkm
+        %else
+            add rsp, stack_size_padded
+            %assign %%pad_size stack_size_padded
+        %endif
+    %endif
+    %if xmm_regs_used > 7 + high_mm_regs
+        movaps xmm7, [rsp + stack_offset - %%pad_size + 24]
+    %endif
+    %if xmm_regs_used > 6 + high_mm_regs
+        movaps xmm6, [rsp + stack_offset - %%pad_size +  8]
+    %endif
+%endmacro
+
+%macro WIN64_RESTORE_XMM 0
+    WIN64_RESTORE_XMM_INTERNAL
+    %assign stack_offset (stack_offset-stack_size_padded)
+    %assign stack_size_padded 0
+    %assign xmm_regs_used 0
+%endmacro
+
+%define has_epilogue regs_used > 7 || stack_size > 0 || vzeroupper_required || xmm_regs_used > 6+high_mm_regs
+
+%macro RET 0
+    WIN64_RESTORE_XMM_INTERNAL
+    POP_IF_USED 14, 13, 12, 11, 10, 9, 8, 7
+    %if vzeroupper_required
+        vzeroupper
+    %endif
+    AUTO_REP_RET
+%endmacro
+
+%elif ARCH_X86_64 ; *nix x64 ;=============================================
+
+DECLARE_REG 0,  rdi
+DECLARE_REG 1,  rsi
+DECLARE_REG 2,  rdx
+DECLARE_REG 3,  rcx
+DECLARE_REG 4,  R8
+DECLARE_REG 5,  R9
+DECLARE_REG 6,  rax, 8
+DECLARE_REG 7,  R10, 16
+DECLARE_REG 8,  R11, 24
+DECLARE_REG 9,  rbx, 32
+DECLARE_REG 10, rbp, 40
+DECLARE_REG 11, R14, 48
+DECLARE_REG 12, R15, 56
+DECLARE_REG 13, R12, 64
+DECLARE_REG 14, R13, 72
+
+%macro PROLOGUE 2-5+ 0 ; #args, #regs, #xmm_regs, [stack_size,] arg_names...
+    %assign num_args %1
+    %assign regs_used %2
+    %assign xmm_regs_used %3
+    ASSERT regs_used >= num_args
+    SETUP_STACK_POINTER %4
+    ASSERT regs_used <= 15
+    PUSH_IF_USED 9, 10, 11, 12, 13, 14
+    ALLOC_STACK %4
+    LOAD_IF_USED 6, 7, 8, 9, 10, 11, 12, 13, 14
+    DEFINE_ARGS_INTERNAL %0, %4, %5
+%endmacro
+
+%define has_epilogue regs_used > 9 || stack_size > 0 || vzeroupper_required
+
+%macro RET 0
+    %if stack_size_padded > 0
+        %if required_stack_alignment > STACK_ALIGNMENT
+            mov rsp, rstkm
+        %else
+            add rsp, stack_size_padded
+        %endif
+    %endif
+    POP_IF_USED 14, 13, 12, 11, 10, 9
+    %if vzeroupper_required
+        vzeroupper
+    %endif
+    AUTO_REP_RET
+%endmacro
+
+%else ; X86_32 ;==============================================================
+
+DECLARE_REG 0, eax, 4
+DECLARE_REG 1, ecx, 8
+DECLARE_REG 2, edx, 12
+DECLARE_REG 3, ebx, 16
+DECLARE_REG 4, esi, 20
+DECLARE_REG 5, edi, 24
+DECLARE_REG 6, ebp, 28
+%define rsp esp
+
+%macro DECLARE_ARG 1-*
+    %rep %0
+        %define r%1m [rstk + stack_offset + 4*%1 + 4]
+        %define r%1mp dword r%1m
+        %rotate 1
+    %endrep
+%endmacro
+
+DECLARE_ARG 7, 8, 9, 10, 11, 12, 13, 14
+
+%macro PROLOGUE 2-5+ ; #args, #regs, #xmm_regs, [stack_size,] arg_names...
+    %assign num_args %1
+    %assign regs_used %2
+    ASSERT regs_used >= num_args
+    %if num_args > 7
+        %assign num_args 7
+    %endif
+    %if regs_used > 7
+        %assign regs_used 7
+    %endif
+    SETUP_STACK_POINTER %4
+    ASSERT regs_used <= 7
+    PUSH_IF_USED 3, 4, 5, 6
+    ALLOC_STACK %4
+    LOAD_IF_USED 0, 1, 2, 3, 4, 5, 6
+    DEFINE_ARGS_INTERNAL %0, %4, %5
+%endmacro
+
+%define has_epilogue regs_used > 3 || stack_size > 0 || vzeroupper_required
+
+%macro RET 0
+    %if stack_size_padded > 0
+        %if required_stack_alignment > STACK_ALIGNMENT
+            mov rsp, rstkm
+        %else
+            add rsp, stack_size_padded
+        %endif
+    %endif
+    POP_IF_USED 6, 5, 4, 3
+    %if vzeroupper_required
+        vzeroupper
+    %endif
+    AUTO_REP_RET
+%endmacro
+
+%endif ;======================================================================
+
+%if WIN64 == 0
+    %macro WIN64_SPILL_XMM 1
+    %endmacro
+    %macro WIN64_RESTORE_XMM 0
+    %endmacro
+    %macro WIN64_PUSH_XMM 0
+    %endmacro
+%endif
+
+; On AMD cpus <=K10, an ordinary ret is slow if it immediately follows either
+; a branch or a branch target. So switch to a 2-byte form of ret in that case.
+; We can automatically detect "follows a branch", but not a branch target.
+; (SSSE3 is a sufficient condition to know that your cpu doesn't have this problem.)
+%macro REP_RET 0
+    %if has_epilogue || cpuflag(ssse3)
+        RET
+    %else
+        rep ret
+    %endif
+    annotate_function_size
+%endmacro
+
+%define last_branch_adr $$
+%macro AUTO_REP_RET 0
+    %if notcpuflag(ssse3)
+        times ((last_branch_adr-$)>>31)+1 rep ; times 1 iff $ == last_branch_adr.
+    %endif
+    ret
+    annotate_function_size
+%endmacro
+
+%macro BRANCH_INSTR 0-*
+    %rep %0
+        %macro %1 1-2 %1
+            %2 %1
+            %if notcpuflag(ssse3)
+                %%branch_instr equ $
+                %xdefine last_branch_adr %%branch_instr
+            %endif
+        %endmacro
+        %rotate 1
+    %endrep
+%endmacro
+
+BRANCH_INSTR jz, je, jnz, jne, jl, jle, jnl, jnle, jg, jge, jng, jnge, ja, jae, jna, jnae, jb, jbe, jnb, jnbe, jc, jnc, js, jns, jo, jno, jp, jnp
+
+%macro TAIL_CALL 2 ; callee, is_nonadjacent
+    %if has_epilogue
+        call %1
+        RET
+    %elif %2
+        jmp %1
+    %endif
+    annotate_function_size
+%endmacro
+
+;=============================================================================
+; arch-independent part
+;=============================================================================
+
+%assign function_align 16
+
+; Begin a function.
+; Applies any symbol mangling needed for C linkage, and sets up a define such that
+; subsequent uses of the function name automatically refer to the mangled version.
+; Appends cpuflags to the function name if cpuflags has been specified.
+; The "" empty default parameter is a workaround for nasm, which fails if SUFFIX
+; is empty and we call cglobal_internal with just %1 %+ SUFFIX (without %2).
+%macro cglobal 1-2+ "" ; name, [PROLOGUE args]
+    cglobal_internal 1, %1 %+ SUFFIX, %2
+%endmacro
+%macro cvisible 1-2+ "" ; name, [PROLOGUE args]
+    cglobal_internal 0, %1 %+ SUFFIX, %2
+%endmacro
+%macro cglobal_internal 2-3+
+    annotate_function_size
+    %if %1
+        %xdefine %%FUNCTION_PREFIX private_prefix
+        %xdefine %%VISIBILITY hidden
+    %else
+        %xdefine %%FUNCTION_PREFIX public_prefix
+        %xdefine %%VISIBILITY
+    %endif
+    %ifndef cglobaled_%2
+        %xdefine %2 mangle(%%FUNCTION_PREFIX %+ _ %+ %2)
+        %xdefine %2.skip_prologue %2 %+ .skip_prologue
+        CAT_XDEFINE cglobaled_, %2, 1
+    %endif
+    %xdefine current_function %2
+    %xdefine current_function_section __SECT__
+    %if FORMAT_ELF
+        global %2:function %%VISIBILITY
+    %else
+        global %2
+    %endif
+    align function_align
+    %2:
+    RESET_MM_PERMUTATION        ; needed for x86-64, also makes disassembly somewhat nicer
+    %xdefine rstk rsp           ; copy of the original stack pointer, used when greater alignment than the known stack alignment is required
+    %assign stack_offset 0      ; stack pointer offset relative to the return address
+    %assign stack_size 0        ; amount of stack space that can be freely used inside a function
+    %assign stack_size_padded 0 ; total amount of allocated stack space, including space for callee-saved xmm registers on WIN64 and alignment padding
+    %assign xmm_regs_used 0     ; number of XMM registers requested, used for dealing with callee-saved registers on WIN64 and vzeroupper
+    %ifnidn %3, ""
+        PROLOGUE %3
+    %endif
+%endmacro
+
+; Create a global symbol from a local label with the correct name mangling and type
+%macro cglobal_label 1
+    %if FORMAT_ELF
+        global current_function %+ %1:function hidden
+    %else
+        global current_function %+ %1
+    %endif
+    %1:
+%endmacro
+
+%macro cextern 1
+    %xdefine %1 mangle(private_prefix %+ _ %+ %1)
+    CAT_XDEFINE cglobaled_, %1, 1
+    extern %1
+%endmacro
+
+; like cextern, but without the prefix
+%macro cextern_naked 1
+    %ifdef PREFIX
+        %xdefine %1 mangle(%1)
+    %endif
+    CAT_XDEFINE cglobaled_, %1, 1
+    extern %1
+%endmacro
+
+%macro const 1-2+
+    %xdefine %1 mangle(private_prefix %+ _ %+ %1)
+    %if FORMAT_ELF
+        global %1:data hidden
+    %else
+        global %1
+    %endif
+    %1: %2
+%endmacro
+
+; This is needed for ELF, otherwise the GNU linker assumes the stack is executable by default.
+%if FORMAT_ELF
+    [SECTION .note.GNU-stack noalloc noexec nowrite progbits]
+%endif
+
+; Tell debuggers how large the function was.
+; This may be invoked multiple times per function; we rely on later instances overriding earlier ones.
+; This is invoked by RET and similar macros, and also cglobal does it for the previous function,
+; but if the last function in a source file doesn't use any of the standard macros for its epilogue,
+; then its size might be unspecified.
+%macro annotate_function_size 0
+    %ifdef __YASM_VER__
+        %ifdef current_function
+            %if FORMAT_ELF
+                current_function_section
+                %%ecf equ $
+                size current_function %%ecf - current_function
+                __SECT__
+            %endif
+        %endif
+    %endif
+%endmacro
+
+; cpuflags
+
+%assign cpuflags_mmx      (1<<0)
+%assign cpuflags_mmx2     (1<<1) | cpuflags_mmx
+%assign cpuflags_3dnow    (1<<2) | cpuflags_mmx
+%assign cpuflags_3dnowext (1<<3) | cpuflags_3dnow
+%assign cpuflags_sse      (1<<4) | cpuflags_mmx2
+%assign cpuflags_sse2     (1<<5) | cpuflags_sse
+%assign cpuflags_sse2slow (1<<6) | cpuflags_sse2
+%assign cpuflags_lzcnt    (1<<7) | cpuflags_sse2
+%assign cpuflags_sse3     (1<<8) | cpuflags_sse2
+%assign cpuflags_ssse3    (1<<9) | cpuflags_sse3
+%assign cpuflags_sse4     (1<<10)| cpuflags_ssse3
+%assign cpuflags_sse42    (1<<11)| cpuflags_sse4
+%assign cpuflags_aesni    (1<<12)| cpuflags_sse42
+%assign cpuflags_avx      (1<<13)| cpuflags_sse42
+%assign cpuflags_xop      (1<<14)| cpuflags_avx
+%assign cpuflags_fma4     (1<<15)| cpuflags_avx
+%assign cpuflags_fma3     (1<<16)| cpuflags_avx
+%assign cpuflags_bmi1     (1<<17)| cpuflags_avx|cpuflags_lzcnt
+%assign cpuflags_bmi2     (1<<18)| cpuflags_bmi1
+%assign cpuflags_avx2     (1<<19)| cpuflags_fma3|cpuflags_bmi2
+%assign cpuflags_avx512   (1<<20)| cpuflags_avx2 ; F, CD, BW, DQ, VL
+
+%assign cpuflags_cache32  (1<<21)
+%assign cpuflags_cache64  (1<<22)
+%assign cpuflags_aligned  (1<<23) ; not a cpu feature, but a function variant
+%assign cpuflags_atom     (1<<24)
+
+; Returns a boolean value expressing whether or not the specified cpuflag is enabled.
+%define    cpuflag(x) (((((cpuflags & (cpuflags_ %+ x)) ^ (cpuflags_ %+ x)) - 1) >> 31) & 1)
+%define notcpuflag(x) (cpuflag(x) ^ 1)
+
+; Takes an arbitrary number of cpuflags from the above list.
+; All subsequent functions (up to the next INIT_CPUFLAGS) is built for the specified cpu.
+; You shouldn't need to invoke this macro directly, it's a subroutine for INIT_MMX &co.
+%macro INIT_CPUFLAGS 0-*
+    %xdefine SUFFIX
+    %undef cpuname
+    %assign cpuflags 0
+
+    %if %0 >= 1
+        %rep %0
+            %ifdef cpuname
+                %xdefine cpuname cpuname %+ _%1
+            %else
+                %xdefine cpuname %1
+            %endif
+            %assign cpuflags cpuflags | cpuflags_%1
+            %rotate 1
+        %endrep
+        %xdefine SUFFIX _ %+ cpuname
+
+        %if cpuflag(avx)
+            %assign avx_enabled 1
+        %endif
+        %if (mmsize == 16 && notcpuflag(sse2)) || (mmsize == 32 && notcpuflag(avx2))
+            %define mova movaps
+            %define movu movups
+            %define movnta movntps
+        %endif
+        %if cpuflag(aligned)
+            %define movu mova
+        %elif cpuflag(sse3) && notcpuflag(ssse3)
+            %define movu lddqu
+        %endif
+    %endif
+
+    %if ARCH_X86_64 || cpuflag(sse2)
+        CPUNOP amdnop
+    %else
+        CPUNOP basicnop
+    %endif
+%endmacro
+
+; Merge mmx, sse*, and avx*
+; m# is a simd register of the currently selected size
+; xm# is the corresponding xmm register if mmsize >= 16, otherwise the same as m#
+; ym# is the corresponding ymm register if mmsize >= 32, otherwise the same as m#
+; zm# is the corresponding zmm register if mmsize >= 64, otherwise the same as m#
+; (All 4 remain in sync through SWAP.)
+
+%macro CAT_XDEFINE 3
+    %xdefine %1%2 %3
+%endmacro
+
+%macro CAT_UNDEF 2
+    %undef %1%2
+%endmacro
+
+%macro DEFINE_MMREGS 1 ; mmtype
+    %assign %%prev_mmregs 0
+    %ifdef num_mmregs
+        %assign %%prev_mmregs num_mmregs
+    %endif
+
+    %assign num_mmregs 8
+    %if ARCH_X86_64 && mmsize >= 16
+        %assign num_mmregs 16
+        %if cpuflag(avx512) || mmsize == 64
+            %assign num_mmregs 32
+        %endif
+    %endif
+
+    %assign %%i 0
+    %rep num_mmregs
+        CAT_XDEFINE m, %%i, %1 %+ %%i
+        CAT_XDEFINE nn%1, %%i, %%i
+        %assign %%i %%i+1
+    %endrep
+    %if %%prev_mmregs > num_mmregs
+        %rep %%prev_mmregs - num_mmregs
+            CAT_UNDEF m, %%i
+            CAT_UNDEF nn %+ mmtype, %%i
+            %assign %%i %%i+1
+        %endrep
+    %endif
+    %xdefine mmtype %1
+%endmacro
+
+; Prefer registers 16-31 over 0-15 to avoid having to use vzeroupper
+%macro AVX512_MM_PERMUTATION 0-1 0 ; start_reg
+    %if ARCH_X86_64 && cpuflag(avx512)
+        %assign %%i %1
+        %rep 16-%1
+            %assign %%i_high %%i+16
+            SWAP %%i, %%i_high
+            %assign %%i %%i+1
+        %endrep
+    %endif
+%endmacro
+
+%macro INIT_MMX 0-1+
+    %assign avx_enabled 0
+    %define RESET_MM_PERMUTATION INIT_MMX %1
+    %define mmsize 8
+    %define mova movq
+    %define movu movq
+    %define movh movd
+    %define movnta movntq
+    INIT_CPUFLAGS %1
+    DEFINE_MMREGS mm
+%endmacro
+
+%macro INIT_XMM 0-1+
+    %assign avx_enabled 0
+    %define RESET_MM_PERMUTATION INIT_XMM %1
+    %define mmsize 16
+    %define mova movdqa
+    %define movu movdqu
+    %define movh movq
+    %define movnta movntdq
+    INIT_CPUFLAGS %1
+    DEFINE_MMREGS xmm
+    %if WIN64
+        AVX512_MM_PERMUTATION 6 ; Swap callee-saved registers with volatile registers
+    %endif
+%endmacro
+
+%macro INIT_YMM 0-1+
+    %assign avx_enabled 1
+    %define RESET_MM_PERMUTATION INIT_YMM %1
+    %define mmsize 32
+    %define mova movdqa
+    %define movu movdqu
+    %undef movh
+    %define movnta movntdq
+    INIT_CPUFLAGS %1
+    DEFINE_MMREGS ymm
+    AVX512_MM_PERMUTATION
+%endmacro
+
+%macro INIT_ZMM 0-1+
+    %assign avx_enabled 1
+    %define RESET_MM_PERMUTATION INIT_ZMM %1
+    %define mmsize 64
+    %define mova movdqa
+    %define movu movdqu
+    %undef movh
+    %define movnta movntdq
+    INIT_CPUFLAGS %1
+    DEFINE_MMREGS zmm
+    AVX512_MM_PERMUTATION
+%endmacro
+
+INIT_XMM
+
+%macro DECLARE_MMCAST 1
+    %define  mmmm%1   mm%1
+    %define  mmxmm%1  mm%1
+    %define  mmymm%1  mm%1
+    %define  mmzmm%1  mm%1
+    %define xmmmm%1   mm%1
+    %define xmmxmm%1 xmm%1
+    %define xmmymm%1 xmm%1
+    %define xmmzmm%1 xmm%1
+    %define ymmmm%1   mm%1
+    %define ymmxmm%1 xmm%1
+    %define ymmymm%1 ymm%1
+    %define ymmzmm%1 ymm%1
+    %define zmmmm%1   mm%1
+    %define zmmxmm%1 xmm%1
+    %define zmmymm%1 ymm%1
+    %define zmmzmm%1 zmm%1
+    %define xm%1 xmm %+ m%1
+    %define ym%1 ymm %+ m%1
+    %define zm%1 zmm %+ m%1
+%endmacro
+
+%assign i 0
+%rep 32
+    DECLARE_MMCAST i
+    %assign i i+1
+%endrep
+
+; I often want to use macros that permute their arguments. e.g. there's no
+; efficient way to implement butterfly or transpose or dct without swapping some
+; arguments.
+;
+; I would like to not have to manually keep track of the permutations:
+; If I insert a permutation in the middle of a function, it should automatically
+; change everything that follows. For more complex macros I may also have multiple
+; implementations, e.g. the SSE2 and SSSE3 versions may have different permutations.
+;
+; Hence these macros. Insert a PERMUTE or some SWAPs at the end of a macro that
+; permutes its arguments. It's equivalent to exchanging the contents of the
+; registers, except that this way you exchange the register names instead, so it
+; doesn't cost any cycles.
+
+%macro PERMUTE 2-* ; takes a list of pairs to swap
+    %rep %0/2
+        %xdefine %%tmp%2 m%2
+        %rotate 2
+    %endrep
+    %rep %0/2
+        %xdefine m%1 %%tmp%2
+        CAT_XDEFINE nn, m%1, %1
+        %rotate 2
+    %endrep
+%endmacro
+
+%macro SWAP 2+ ; swaps a single chain (sometimes more concise than pairs)
+    %ifnum %1 ; SWAP 0, 1, ...
+        SWAP_INTERNAL_NUM %1, %2
+    %else ; SWAP m0, m1, ...
+        SWAP_INTERNAL_NAME %1, %2
+    %endif
+%endmacro
+
+%macro SWAP_INTERNAL_NUM 2-*
+    %rep %0-1
+        %xdefine %%tmp m%1
+        %xdefine m%1 m%2
+        %xdefine m%2 %%tmp
+        CAT_XDEFINE nn, m%1, %1
+        CAT_XDEFINE nn, m%2, %2
+        %rotate 1
+    %endrep
+%endmacro
+
+%macro SWAP_INTERNAL_NAME 2-*
+    %xdefine %%args nn %+ %1
+    %rep %0-1
+        %xdefine %%args %%args, nn %+ %2
+        %rotate 1
+    %endrep
+    SWAP_INTERNAL_NUM %%args
+%endmacro
+
+; If SAVE_MM_PERMUTATION is placed at the end of a function, then any later
+; calls to that function will automatically load the permutation, so values can
+; be returned in mmregs.
+%macro SAVE_MM_PERMUTATION 0-1
+    %if %0
+        %xdefine %%f %1_m
+    %else
+        %xdefine %%f current_function %+ _m
+    %endif
+    %assign %%i 0
+    %rep num_mmregs
+        CAT_XDEFINE %%f, %%i, m %+ %%i
+        %assign %%i %%i+1
+    %endrep
+%endmacro
+
+%macro LOAD_MM_PERMUTATION 1 ; name to load from
+    %ifdef %1_m0
+        %assign %%i 0
+        %rep num_mmregs
+            CAT_XDEFINE m, %%i, %1_m %+ %%i
+            CAT_XDEFINE nn, m %+ %%i, %%i
+            %assign %%i %%i+1
+        %endrep
+    %endif
+%endmacro
+
+; Append cpuflags to the callee's name iff the appended name is known and the plain name isn't
+%macro call 1
+    %ifid %1
+        call_internal %1 %+ SUFFIX, %1
+    %else
+        call %1
+    %endif
+%endmacro
+%macro call_internal 2
+    %xdefine %%i %2
+    %ifndef cglobaled_%2
+        %ifdef cglobaled_%1
+            %xdefine %%i %1
+        %endif
+    %endif
+    call %%i
+    LOAD_MM_PERMUTATION %%i
+%endmacro
+
+; Substitutions that reduce instruction size but are functionally equivalent
+%macro add 2
+    %ifnum %2
+        %if %2==128
+            sub %1, -128
+        %else
+            add %1, %2
+        %endif
+    %else
+        add %1, %2
+    %endif
+%endmacro
+
+%macro sub 2
+    %ifnum %2
+        %if %2==128
+            add %1, -128
+        %else
+            sub %1, %2
+        %endif
+    %else
+        sub %1, %2
+    %endif
+%endmacro
+
+;=============================================================================
+; AVX abstraction layer
+;=============================================================================
+
+%assign i 0
+%rep 32
+    %if i < 8
+        CAT_XDEFINE sizeofmm, i, 8
+        CAT_XDEFINE regnumofmm, i, i
+    %endif
+    CAT_XDEFINE sizeofxmm, i, 16
+    CAT_XDEFINE sizeofymm, i, 32
+    CAT_XDEFINE sizeofzmm, i, 64
+    CAT_XDEFINE regnumofxmm, i, i
+    CAT_XDEFINE regnumofymm, i, i
+    CAT_XDEFINE regnumofzmm, i, i
+    %assign i i+1
+%endrep
+%undef i
+
+%macro CHECK_AVX_INSTR_EMU 3-*
+    %xdefine %%opcode %1
+    %xdefine %%dst %2
+    %rep %0-2
+        %ifidn %%dst, %3
+            %error non-avx emulation of ``%%opcode'' is not supported
+        %endif
+        %rotate 1
+    %endrep
+%endmacro
+
+;%1 == instruction
+;%2 == minimal instruction set
+;%3 == 1 if float, 0 if int
+;%4 == 1 if 4-operand emulation, 0 if 3-operand emulation, 255 otherwise (no emulation)
+;%5 == 1 if commutative (i.e. doesn't matter which src arg is which), 0 if not
+;%6+: operands
+%macro RUN_AVX_INSTR 6-9+
+    %ifnum sizeof%7
+        %assign __sizeofreg sizeof%7
+    %elifnum sizeof%6
+        %assign __sizeofreg sizeof%6
+    %else
+        %assign __sizeofreg mmsize
+    %endif
+    %assign __emulate_avx 0
+    %if avx_enabled && __sizeofreg >= 16
+        %xdefine __instr v%1
+    %else
+        %xdefine __instr %1
+        %if %0 >= 8+%4
+            %assign __emulate_avx 1
+        %endif
+    %endif
+    %ifnidn %2, fnord
+        %ifdef cpuname
+            %if notcpuflag(%2)
+                %error use of ``%1'' %2 instruction in cpuname function: current_function
+            %elif cpuflags_%2 < cpuflags_sse && notcpuflag(sse2) && __sizeofreg > 8
+                %error use of ``%1'' sse2 instruction in cpuname function: current_function
+            %endif
+        %endif
+    %endif
+
+    %if __emulate_avx
+        %xdefine __src1 %7
+        %xdefine __src2 %8
+        %if %5 && %4 == 0
+            %ifnidn %6, %7
+                %ifidn %6, %8
+                    %xdefine __src1 %8
+                    %xdefine __src2 %7
+                %elifnnum sizeof%8
+                    ; 3-operand AVX instructions with a memory arg can only have it in src2,
+                    ; whereas SSE emulation prefers to have it in src1 (i.e. the mov).
+                    ; So, if the instruction is commutative with a memory arg, swap them.
+                    %xdefine __src1 %8
+                    %xdefine __src2 %7
+                %endif
+            %endif
+        %endif
+        %ifnidn %6, __src1
+            %if %0 >= 9
+                CHECK_AVX_INSTR_EMU {%1 %6, %7, %8, %9}, %6, __src2, %9
+            %else
+                CHECK_AVX_INSTR_EMU {%1 %6, %7, %8}, %6, __src2
+            %endif
+            %if __sizeofreg == 8
+                MOVQ %6, __src1
+            %elif %3
+                MOVAPS %6, __src1
+            %else
+                MOVDQA %6, __src1
+            %endif
+        %endif
+        %if %0 >= 9
+            %1 %6, __src2, %9
+        %else
+            %1 %6, __src2
+        %endif
+    %elif %0 >= 9
+        __instr %6, %7, %8, %9
+    %elif %0 == 8
+        __instr %6, %7, %8
+    %elif %0 == 7
+        __instr %6, %7
+    %else
+        __instr %6
+    %endif
+%endmacro
+
+;%1 == instruction
+;%2 == minimal instruction set
+;%3 == 1 if float, 0 if int
+;%4 == 1 if 4-operand emulation, 0 if 3-operand emulation, 255 otherwise (no emulation)
+;%5 == 1 if commutative (i.e. doesn't matter which src arg is which), 0 if not
+%macro AVX_INSTR 1-5 fnord, 0, 255, 0
+    %macro %1 1-10 fnord, fnord, fnord, fnord, %1, %2, %3, %4, %5
+        %ifidn %2, fnord
+            RUN_AVX_INSTR %6, %7, %8, %9, %10, %1
+        %elifidn %3, fnord
+            RUN_AVX_INSTR %6, %7, %8, %9, %10, %1, %2
+        %elifidn %4, fnord
+            RUN_AVX_INSTR %6, %7, %8, %9, %10, %1, %2, %3
+        %elifidn %5, fnord
+            RUN_AVX_INSTR %6, %7, %8, %9, %10, %1, %2, %3, %4
+        %else
+            RUN_AVX_INSTR %6, %7, %8, %9, %10, %1, %2, %3, %4, %5
+        %endif
+    %endmacro
+%endmacro
+
+; Instructions with both VEX/EVEX and legacy encodings
+; Non-destructive instructions are written without parameters
+AVX_INSTR addpd, sse2, 1, 0, 1
+AVX_INSTR addps, sse, 1, 0, 1
+AVX_INSTR addsd, sse2, 1, 0, 0
+AVX_INSTR addss, sse, 1, 0, 0
+AVX_INSTR addsubpd, sse3, 1, 0, 0
+AVX_INSTR addsubps, sse3, 1, 0, 0
+AVX_INSTR aesdec, aesni, 0, 0, 0
+AVX_INSTR aesdeclast, aesni, 0, 0, 0
+AVX_INSTR aesenc, aesni, 0, 0, 0
+AVX_INSTR aesenclast, aesni, 0, 0, 0
+AVX_INSTR aesimc, aesni
+AVX_INSTR aeskeygenassist, aesni
+AVX_INSTR andnpd, sse2, 1, 0, 0
+AVX_INSTR andnps, sse, 1, 0, 0
+AVX_INSTR andpd, sse2, 1, 0, 1
+AVX_INSTR andps, sse, 1, 0, 1
+AVX_INSTR blendpd, sse4, 1, 1, 0
+AVX_INSTR blendps, sse4, 1, 1, 0
+AVX_INSTR blendvpd, sse4 ; can't be emulated
+AVX_INSTR blendvps, sse4 ; can't be emulated
+AVX_INSTR cmpeqpd, sse2, 1, 0, 1
+AVX_INSTR cmpeqps, sse, 1, 0, 1
+AVX_INSTR cmpeqsd, sse2, 1, 0, 0
+AVX_INSTR cmpeqss, sse, 1, 0, 0
+AVX_INSTR cmplepd, sse2, 1, 0, 0
+AVX_INSTR cmpleps, sse, 1, 0, 0
+AVX_INSTR cmplesd, sse2, 1, 0, 0
+AVX_INSTR cmpless, sse, 1, 0, 0
+AVX_INSTR cmpltpd, sse2, 1, 0, 0
+AVX_INSTR cmpltps, sse, 1, 0, 0
+AVX_INSTR cmpltsd, sse2, 1, 0, 0
+AVX_INSTR cmpltss, sse, 1, 0, 0
+AVX_INSTR cmpneqpd, sse2, 1, 0, 1
+AVX_INSTR cmpneqps, sse, 1, 0, 1
+AVX_INSTR cmpneqsd, sse2, 1, 0, 0
+AVX_INSTR cmpneqss, sse, 1, 0, 0
+AVX_INSTR cmpnlepd, sse2, 1, 0, 0
+AVX_INSTR cmpnleps, sse, 1, 0, 0
+AVX_INSTR cmpnlesd, sse2, 1, 0, 0
+AVX_INSTR cmpnless, sse, 1, 0, 0
+AVX_INSTR cmpnltpd, sse2, 1, 0, 0
+AVX_INSTR cmpnltps, sse, 1, 0, 0
+AVX_INSTR cmpnltsd, sse2, 1, 0, 0
+AVX_INSTR cmpnltss, sse, 1, 0, 0
+AVX_INSTR cmpordpd, sse2 1, 0, 1
+AVX_INSTR cmpordps, sse 1, 0, 1
+AVX_INSTR cmpordsd, sse2 1, 0, 0
+AVX_INSTR cmpordss, sse 1, 0, 0
+AVX_INSTR cmppd, sse2, 1, 1, 0
+AVX_INSTR cmpps, sse, 1, 1, 0
+AVX_INSTR cmpsd, sse2, 1, 1, 0
+AVX_INSTR cmpss, sse, 1, 1, 0
+AVX_INSTR cmpunordpd, sse2, 1, 0, 1
+AVX_INSTR cmpunordps, sse, 1, 0, 1
+AVX_INSTR cmpunordsd, sse2, 1, 0, 0
+AVX_INSTR cmpunordss, sse, 1, 0, 0
+AVX_INSTR comisd, sse2
+AVX_INSTR comiss, sse
+AVX_INSTR cvtdq2pd, sse2
+AVX_INSTR cvtdq2ps, sse2
+AVX_INSTR cvtpd2dq, sse2
+AVX_INSTR cvtpd2ps, sse2
+AVX_INSTR cvtps2dq, sse2
+AVX_INSTR cvtps2pd, sse2
+AVX_INSTR cvtsd2si, sse2
+AVX_INSTR cvtsd2ss, sse2, 1, 0, 0
+AVX_INSTR cvtsi2sd, sse2, 1, 0, 0
+AVX_INSTR cvtsi2ss, sse, 1, 0, 0
+AVX_INSTR cvtss2sd, sse2, 1, 0, 0
+AVX_INSTR cvtss2si, sse
+AVX_INSTR cvttpd2dq, sse2
+AVX_INSTR cvttps2dq, sse2
+AVX_INSTR cvttsd2si, sse2
+AVX_INSTR cvttss2si, sse
+AVX_INSTR divpd, sse2, 1, 0, 0
+AVX_INSTR divps, sse, 1, 0, 0
+AVX_INSTR divsd, sse2, 1, 0, 0
+AVX_INSTR divss, sse, 1, 0, 0
+AVX_INSTR dppd, sse4, 1, 1, 0
+AVX_INSTR dpps, sse4, 1, 1, 0
+AVX_INSTR extractps, sse4
+AVX_INSTR haddpd, sse3, 1, 0, 0
+AVX_INSTR haddps, sse3, 1, 0, 0
+AVX_INSTR hsubpd, sse3, 1, 0, 0
+AVX_INSTR hsubps, sse3, 1, 0, 0
+AVX_INSTR insertps, sse4, 1, 1, 0
+AVX_INSTR lddqu, sse3
+AVX_INSTR ldmxcsr, sse
+AVX_INSTR maskmovdqu, sse2
+AVX_INSTR maxpd, sse2, 1, 0, 1
+AVX_INSTR maxps, sse, 1, 0, 1
+AVX_INSTR maxsd, sse2, 1, 0, 0
+AVX_INSTR maxss, sse, 1, 0, 0
+AVX_INSTR minpd, sse2, 1, 0, 1
+AVX_INSTR minps, sse, 1, 0, 1
+AVX_INSTR minsd, sse2, 1, 0, 0
+AVX_INSTR minss, sse, 1, 0, 0
+AVX_INSTR movapd, sse2
+AVX_INSTR movaps, sse
+AVX_INSTR movd, mmx
+AVX_INSTR movddup, sse3
+AVX_INSTR movdqa, sse2
+AVX_INSTR movdqu, sse2
+AVX_INSTR movhlps, sse, 1, 0, 0
+AVX_INSTR movhpd, sse2, 1, 0, 0
+AVX_INSTR movhps, sse, 1, 0, 0
+AVX_INSTR movlhps, sse, 1, 0, 0
+AVX_INSTR movlpd, sse2, 1, 0, 0
+AVX_INSTR movlps, sse, 1, 0, 0
+AVX_INSTR movmskpd, sse2
+AVX_INSTR movmskps, sse
+AVX_INSTR movntdq, sse2
+AVX_INSTR movntdqa, sse4
+AVX_INSTR movntpd, sse2
+AVX_INSTR movntps, sse
+AVX_INSTR movq, mmx
+AVX_INSTR movsd, sse2, 1, 0, 0
+AVX_INSTR movshdup, sse3
+AVX_INSTR movsldup, sse3
+AVX_INSTR movss, sse, 1, 0, 0
+AVX_INSTR movupd, sse2
+AVX_INSTR movups, sse
+AVX_INSTR mpsadbw, sse4, 0, 1, 0
+AVX_INSTR mulpd, sse2, 1, 0, 1
+AVX_INSTR mulps, sse, 1, 0, 1
+AVX_INSTR mulsd, sse2, 1, 0, 0
+AVX_INSTR mulss, sse, 1, 0, 0
+AVX_INSTR orpd, sse2, 1, 0, 1
+AVX_INSTR orps, sse, 1, 0, 1
+AVX_INSTR pabsb, ssse3
+AVX_INSTR pabsd, ssse3
+AVX_INSTR pabsw, ssse3
+AVX_INSTR packsswb, mmx, 0, 0, 0
+AVX_INSTR packssdw, mmx, 0, 0, 0
+AVX_INSTR packuswb, mmx, 0, 0, 0
+AVX_INSTR packusdw, sse4, 0, 0, 0
+AVX_INSTR paddb, mmx, 0, 0, 1
+AVX_INSTR paddw, mmx, 0, 0, 1
+AVX_INSTR paddd, mmx, 0, 0, 1
+AVX_INSTR paddq, sse2, 0, 0, 1
+AVX_INSTR paddsb, mmx, 0, 0, 1
+AVX_INSTR paddsw, mmx, 0, 0, 1
+AVX_INSTR paddusb, mmx, 0, 0, 1
+AVX_INSTR paddusw, mmx, 0, 0, 1
+AVX_INSTR palignr, ssse3, 0, 1, 0
+AVX_INSTR pand, mmx, 0, 0, 1
+AVX_INSTR pandn, mmx, 0, 0, 0
+AVX_INSTR pavgb, mmx2, 0, 0, 1
+AVX_INSTR pavgw, mmx2, 0, 0, 1
+AVX_INSTR pblendvb, sse4 ; can't be emulated
+AVX_INSTR pblendw, sse4, 0, 1, 0
+AVX_INSTR pclmulqdq, fnord, 0, 1, 0
+AVX_INSTR pclmulhqhqdq, fnord, 0, 0, 0
+AVX_INSTR pclmulhqlqdq, fnord, 0, 0, 0
+AVX_INSTR pclmullqhqdq, fnord, 0, 0, 0
+AVX_INSTR pclmullqlqdq, fnord, 0, 0, 0
+AVX_INSTR pcmpestri, sse42
+AVX_INSTR pcmpestrm, sse42
+AVX_INSTR pcmpistri, sse42
+AVX_INSTR pcmpistrm, sse42
+AVX_INSTR pcmpeqb, mmx, 0, 0, 1
+AVX_INSTR pcmpeqw, mmx, 0, 0, 1
+AVX_INSTR pcmpeqd, mmx, 0, 0, 1
+AVX_INSTR pcmpeqq, sse4, 0, 0, 1
+AVX_INSTR pcmpgtb, mmx, 0, 0, 0
+AVX_INSTR pcmpgtw, mmx, 0, 0, 0
+AVX_INSTR pcmpgtd, mmx, 0, 0, 0
+AVX_INSTR pcmpgtq, sse42, 0, 0, 0
+AVX_INSTR pextrb, sse4
+AVX_INSTR pextrd, sse4
+AVX_INSTR pextrq, sse4
+AVX_INSTR pextrw, mmx2
+AVX_INSTR phaddw, ssse3, 0, 0, 0
+AVX_INSTR phaddd, ssse3, 0, 0, 0
+AVX_INSTR phaddsw, ssse3, 0, 0, 0
+AVX_INSTR phminposuw, sse4
+AVX_INSTR phsubw, ssse3, 0, 0, 0
+AVX_INSTR phsubd, ssse3, 0, 0, 0
+AVX_INSTR phsubsw, ssse3, 0, 0, 0
+AVX_INSTR pinsrb, sse4, 0, 1, 0
+AVX_INSTR pinsrd, sse4, 0, 1, 0
+AVX_INSTR pinsrq, sse4, 0, 1, 0
+AVX_INSTR pinsrw, mmx2, 0, 1, 0
+AVX_INSTR pmaddwd, mmx, 0, 0, 1
+AVX_INSTR pmaddubsw, ssse3, 0, 0, 0
+AVX_INSTR pmaxsb, sse4, 0, 0, 1
+AVX_INSTR pmaxsw, mmx2, 0, 0, 1
+AVX_INSTR pmaxsd, sse4, 0, 0, 1
+AVX_INSTR pmaxub, mmx2, 0, 0, 1
+AVX_INSTR pmaxuw, sse4, 0, 0, 1
+AVX_INSTR pmaxud, sse4, 0, 0, 1
+AVX_INSTR pminsb, sse4, 0, 0, 1
+AVX_INSTR pminsw, mmx2, 0, 0, 1
+AVX_INSTR pminsd, sse4, 0, 0, 1
+AVX_INSTR pminub, mmx2, 0, 0, 1
+AVX_INSTR pminuw, sse4, 0, 0, 1
+AVX_INSTR pminud, sse4, 0, 0, 1
+AVX_INSTR pmovmskb, mmx2
+AVX_INSTR pmovsxbw, sse4
+AVX_INSTR pmovsxbd, sse4
+AVX_INSTR pmovsxbq, sse4
+AVX_INSTR pmovsxwd, sse4
+AVX_INSTR pmovsxwq, sse4
+AVX_INSTR pmovsxdq, sse4
+AVX_INSTR pmovzxbw, sse4
+AVX_INSTR pmovzxbd, sse4
+AVX_INSTR pmovzxbq, sse4
+AVX_INSTR pmovzxwd, sse4
+AVX_INSTR pmovzxwq, sse4
+AVX_INSTR pmovzxdq, sse4
+AVX_INSTR pmuldq, sse4, 0, 0, 1
+AVX_INSTR pmulhrsw, ssse3, 0, 0, 1
+AVX_INSTR pmulhuw, mmx2, 0, 0, 1
+AVX_INSTR pmulhw, mmx, 0, 0, 1
+AVX_INSTR pmullw, mmx, 0, 0, 1
+AVX_INSTR pmulld, sse4, 0, 0, 1
+AVX_INSTR pmuludq, sse2, 0, 0, 1
+AVX_INSTR por, mmx, 0, 0, 1
+AVX_INSTR psadbw, mmx2, 0, 0, 1
+AVX_INSTR pshufb, ssse3, 0, 0, 0
+AVX_INSTR pshufd, sse2
+AVX_INSTR pshufhw, sse2
+AVX_INSTR pshuflw, sse2
+AVX_INSTR psignb, ssse3, 0, 0, 0
+AVX_INSTR psignw, ssse3, 0, 0, 0
+AVX_INSTR psignd, ssse3, 0, 0, 0
+AVX_INSTR psllw, mmx, 0, 0, 0
+AVX_INSTR pslld, mmx, 0, 0, 0
+AVX_INSTR psllq, mmx, 0, 0, 0
+AVX_INSTR pslldq, sse2, 0, 0, 0
+AVX_INSTR psraw, mmx, 0, 0, 0
+AVX_INSTR psrad, mmx, 0, 0, 0
+AVX_INSTR psrlw, mmx, 0, 0, 0
+AVX_INSTR psrld, mmx, 0, 0, 0
+AVX_INSTR psrlq, mmx, 0, 0, 0
+AVX_INSTR psrldq, sse2, 0, 0, 0
+AVX_INSTR psubb, mmx, 0, 0, 0
+AVX_INSTR psubw, mmx, 0, 0, 0
+AVX_INSTR psubd, mmx, 0, 0, 0
+AVX_INSTR psubq, sse2, 0, 0, 0
+AVX_INSTR psubsb, mmx, 0, 0, 0
+AVX_INSTR psubsw, mmx, 0, 0, 0
+AVX_INSTR psubusb, mmx, 0, 0, 0
+AVX_INSTR psubusw, mmx, 0, 0, 0
+AVX_INSTR ptest, sse4
+AVX_INSTR punpckhbw, mmx, 0, 0, 0
+AVX_INSTR punpckhwd, mmx, 0, 0, 0
+AVX_INSTR punpckhdq, mmx, 0, 0, 0
+AVX_INSTR punpckhqdq, sse2, 0, 0, 0
+AVX_INSTR punpcklbw, mmx, 0, 0, 0
+AVX_INSTR punpcklwd, mmx, 0, 0, 0
+AVX_INSTR punpckldq, mmx, 0, 0, 0
+AVX_INSTR punpcklqdq, sse2, 0, 0, 0
+AVX_INSTR pxor, mmx, 0, 0, 1
+AVX_INSTR rcpps, sse
+AVX_INSTR rcpss, sse, 1, 0, 0
+AVX_INSTR roundpd, sse4
+AVX_INSTR roundps, sse4
+AVX_INSTR roundsd, sse4, 1, 1, 0
+AVX_INSTR roundss, sse4, 1, 1, 0
+AVX_INSTR rsqrtps, sse
+AVX_INSTR rsqrtss, sse, 1, 0, 0
+AVX_INSTR shufpd, sse2, 1, 1, 0
+AVX_INSTR shufps, sse, 1, 1, 0
+AVX_INSTR sqrtpd, sse2
+AVX_INSTR sqrtps, sse
+AVX_INSTR sqrtsd, sse2, 1, 0, 0
+AVX_INSTR sqrtss, sse, 1, 0, 0
+AVX_INSTR stmxcsr, sse
+AVX_INSTR subpd, sse2, 1, 0, 0
+AVX_INSTR subps, sse, 1, 0, 0
+AVX_INSTR subsd, sse2, 1, 0, 0
+AVX_INSTR subss, sse, 1, 0, 0
+AVX_INSTR ucomisd, sse2
+AVX_INSTR ucomiss, sse
+AVX_INSTR unpckhpd, sse2, 1, 0, 0
+AVX_INSTR unpckhps, sse, 1, 0, 0
+AVX_INSTR unpcklpd, sse2, 1, 0, 0
+AVX_INSTR unpcklps, sse, 1, 0, 0
+AVX_INSTR xorpd, sse2, 1, 0, 1
+AVX_INSTR xorps, sse, 1, 0, 1
+
+; 3DNow instructions, for sharing code between AVX, SSE and 3DN
+AVX_INSTR pfadd, 3dnow, 1, 0, 1
+AVX_INSTR pfsub, 3dnow, 1, 0, 0
+AVX_INSTR pfmul, 3dnow, 1, 0, 1
+
+; base-4 constants for shuffles
+%assign i 0
+%rep 256
+    %assign j ((i>>6)&3)*1000 + ((i>>4)&3)*100 + ((i>>2)&3)*10 + (i&3)
+    %if j < 10
+        CAT_XDEFINE q000, j, i
+    %elif j < 100
+        CAT_XDEFINE q00, j, i
+    %elif j < 1000
+        CAT_XDEFINE q0, j, i
+    %else
+        CAT_XDEFINE q, j, i
+    %endif
+    %assign i i+1
+%endrep
+%undef i
+%undef j
+
+%macro FMA_INSTR 3
+    %macro %1 4-7 %1, %2, %3
+        %if cpuflag(xop)
+            v%5 %1, %2, %3, %4
+        %elifnidn %1, %4
+            %6 %1, %2, %3
+            %7 %1, %4
+        %else
+            %error non-xop emulation of ``%5 %1, %2, %3, %4'' is not supported
+        %endif
+    %endmacro
+%endmacro
+
+FMA_INSTR  pmacsww,  pmullw, paddw
+FMA_INSTR  pmacsdd,  pmulld, paddd ; sse4 emulation
+FMA_INSTR pmacsdql,  pmuldq, paddq ; sse4 emulation
+FMA_INSTR pmadcswd, pmaddwd, paddd
+
+; tzcnt is equivalent to "rep bsf" and is backwards-compatible with bsf.
+; This lets us use tzcnt without bumping the yasm version requirement yet.
+%define tzcnt rep bsf
+
+; Macros for consolidating FMA3 and FMA4 using 4-operand (dst, src1, src2, src3) syntax.
+; FMA3 is only possible if dst is the same as one of the src registers.
+; Either src2 or src3 can be a memory operand.
+%macro FMA4_INSTR 2-*
+    %push fma4_instr
+    %xdefine %$prefix %1
+    %rep %0 - 1
+        %macro %$prefix%2 4-6 %$prefix, %2
+            %if notcpuflag(fma3) && notcpuflag(fma4)
+                %error use of ``%5%6'' fma instruction in cpuname function: current_function
+            %elif cpuflag(fma4)
+                v%5%6 %1, %2, %3, %4
+            %elifidn %1, %2
+                ; If %3 or %4 is a memory operand it needs to be encoded as the last operand.
+                %ifnum sizeof%3
+                    v%{5}213%6 %2, %3, %4
+                %else
+                    v%{5}132%6 %2, %4, %3
+                %endif
+            %elifidn %1, %3
+                v%{5}213%6 %3, %2, %4
+            %elifidn %1, %4
+                v%{5}231%6 %4, %2, %3
+            %else
+                %error fma3 emulation of ``%5%6 %1, %2, %3, %4'' is not supported
+            %endif
+        %endmacro
+        %rotate 1
+    %endrep
+    %pop
+%endmacro
+
+FMA4_INSTR fmadd,    pd, ps, sd, ss
+FMA4_INSTR fmaddsub, pd, ps
+FMA4_INSTR fmsub,    pd, ps, sd, ss
+FMA4_INSTR fmsubadd, pd, ps
+FMA4_INSTR fnmadd,   pd, ps, sd, ss
+FMA4_INSTR fnmsub,   pd, ps, sd, ss
+
+; Macros for converting VEX instructions to equivalent EVEX ones.
+%macro EVEX_INSTR 2-3 0 ; vex, evex, prefer_evex
+    %macro %1 2-7 fnord, fnord, %1, %2, %3
+        %ifidn %3, fnord
+            %define %%args %1, %2
+        %elifidn %4, fnord
+            %define %%args %1, %2, %3
+        %else
+            %define %%args %1, %2, %3, %4
+        %endif
+        %assign %%evex_required cpuflag(avx512) & %7
+        %ifnum regnumof%1
+            %if regnumof%1 >= 16 || sizeof%1 > 32
+                %assign %%evex_required 1
+            %endif
+        %endif
+        %ifnum regnumof%2
+            %if regnumof%2 >= 16 || sizeof%2 > 32
+                %assign %%evex_required 1
+            %endif
+        %endif
+        %if %%evex_required
+            %6 %%args
+        %else
+            %5 %%args ; Prefer VEX over EVEX due to shorter instruction length
+        %endif
+    %endmacro
+%endmacro
+
+EVEX_INSTR vbroadcastf128, vbroadcastf32x4
+EVEX_INSTR vbroadcasti128, vbroadcasti32x4
+EVEX_INSTR vextractf128,   vextractf32x4
+EVEX_INSTR vextracti128,   vextracti32x4
+EVEX_INSTR vinsertf128,    vinsertf32x4
+EVEX_INSTR vinserti128,    vinserti32x4
+EVEX_INSTR vmovdqa,        vmovdqa32
+EVEX_INSTR vmovdqu,        vmovdqu32
+EVEX_INSTR vpand,          vpandd
+EVEX_INSTR vpandn,         vpandnd
+EVEX_INSTR vpor,           vpord
+EVEX_INSTR vpxor,          vpxord
+EVEX_INSTR vrcpps,         vrcp14ps,   1 ; EVEX versions have higher precision
+EVEX_INSTR vrcpss,         vrcp14ss,   1
+EVEX_INSTR vrsqrtps,       vrsqrt14ps, 1
+EVEX_INSTR vrsqrtss,       vrsqrt14ss, 1
+
+; workaround: vpbroadcastq is broken in x86_32 due to a yasm bug (fixed in 1.3.0)
+%ifdef __YASM_VER__
+    %if __YASM_VERSION_ID__ < 0x01030000 && ARCH_X86_64 == 0
+        %macro vpbroadcastq 2
+            %if sizeof%1 == 16
+                movddup %1, %2
+            %else
+                vbroadcastsd %1, %2
+            %endif
+        %endmacro
+    %endif
+%endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/x86util.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/x86util.asm
new file mode 100644
index 000000000..d7cd99684
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/x86/x86util.asm
@@ -0,0 +1,1028 @@
+;*****************************************************************************
+;* x86util.asm
+;*****************************************************************************
+;* Copyright (C) 2008-2010 x264 project
+;*
+;* Authors: Loren Merritt <lorenm@u.washington.edu>
+;*          Holger Lubitz <holger@lubitz.org>
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%define private_prefix ff
+%define public_prefix  avpriv
+%define cpuflags_mmxext cpuflags_mmx2
+
+%include "libavutil/x86/x86inc.asm"
+
+; expands to [base],...,[base+7*stride]
+%define PASS8ROWS(base, base3, stride, stride3) \
+    [base],           [base  + stride],   [base  + 2*stride], [base3], \
+    [base3 + stride], [base3 + 2*stride], [base3 + stride3],  [base3 + stride*4]
+
+; Interleave low src0 with low src1 and store in src0,
+; interleave high src0 with high src1 and store in src1.
+; %1 - types
+; %2 - index of the register with src0
+; %3 - index of the register with src1
+; %4 - index of the register for intermediate results
+; example for %1 - wd: input: src0: x0 x1 x2 x3 z0 z1 z2 z3
+;                             src1: y0 y1 y2 y3 q0 q1 q2 q3
+;                     output: src0: x0 y0 x1 y1 x2 y2 x3 y3
+;                             src1: z0 q0 z1 q1 z2 q2 z3 q3
+%macro SBUTTERFLY 4
+%ifidn %1, dqqq
+    vperm2i128  m%4, m%2, m%3, q0301
+    vinserti128 m%2, m%2, xm%3, 1
+%elif avx_enabled == 0
+    mova      m%4, m%2
+    punpckl%1 m%2, m%3
+    punpckh%1 m%4, m%3
+%else
+    punpckh%1 m%4, m%2, m%3
+    punpckl%1 m%2, m%3
+%endif
+    SWAP %3, %4
+%endmacro
+
+%macro SBUTTERFLY2 4
+    punpckl%1 m%4, m%2, m%3
+    punpckh%1 m%2, m%2, m%3
+    SWAP %2, %4, %3
+%endmacro
+
+%macro SBUTTERFLYPS 3
+    unpcklps m%3, m%1, m%2
+    unpckhps m%1, m%1, m%2
+    SWAP %1, %3, %2
+%endmacro
+
+%macro SBUTTERFLYPD 3
+    movlhps m%3, m%1, m%2
+    movhlps m%2, m%2, m%1
+    SWAP %1, %3
+%endmacro
+
+%macro TRANSPOSE4x4B 5
+    SBUTTERFLY bw, %1, %2, %5
+    SBUTTERFLY bw, %3, %4, %5
+    SBUTTERFLY wd, %1, %3, %5
+    SBUTTERFLY wd, %2, %4, %5
+    SWAP %2, %3
+%endmacro
+
+%macro TRANSPOSE4x4W 5
+    SBUTTERFLY wd, %1, %2, %5
+    SBUTTERFLY wd, %3, %4, %5
+    SBUTTERFLY dq, %1, %3, %5
+    SBUTTERFLY dq, %2, %4, %5
+    SWAP %2, %3
+%endmacro
+
+%macro TRANSPOSE2x4x4B 5
+    SBUTTERFLY bw,  %1, %2, %5
+    SBUTTERFLY bw,  %3, %4, %5
+    SBUTTERFLY wd,  %1, %3, %5
+    SBUTTERFLY wd,  %2, %4, %5
+    SBUTTERFLY dq,  %1, %2, %5
+    SBUTTERFLY dq,  %3, %4, %5
+%endmacro
+
+%macro TRANSPOSE2x4x4W 5
+    SBUTTERFLY wd,  %1, %2, %5
+    SBUTTERFLY wd,  %3, %4, %5
+    SBUTTERFLY dq,  %1, %3, %5
+    SBUTTERFLY dq,  %2, %4, %5
+    SBUTTERFLY qdq, %1, %2, %5
+    SBUTTERFLY qdq, %3, %4, %5
+%endmacro
+
+%macro TRANSPOSE4x4D 5
+    SBUTTERFLY dq,  %1, %2, %5
+    SBUTTERFLY dq,  %3, %4, %5
+    SBUTTERFLY qdq, %1, %3, %5
+    SBUTTERFLY qdq, %2, %4, %5
+    SWAP %2, %3
+%endmacro
+
+; identical behavior to TRANSPOSE4x4D, but using SSE1 float ops
+%macro TRANSPOSE4x4PS 5
+    SBUTTERFLYPS %1, %2, %5
+    SBUTTERFLYPS %3, %4, %5
+    SBUTTERFLYPD %1, %3, %5
+    SBUTTERFLYPD %2, %4, %5
+    SWAP %2, %3
+%endmacro
+
+%macro TRANSPOSE8x4D 9-11
+%if ARCH_X86_64
+    SBUTTERFLY dq,  %1, %2, %9
+    SBUTTERFLY dq,  %3, %4, %9
+    SBUTTERFLY dq,  %5, %6, %9
+    SBUTTERFLY dq,  %7, %8, %9
+    SBUTTERFLY qdq, %1, %3, %9
+    SBUTTERFLY qdq, %2, %4, %9
+    SBUTTERFLY qdq, %5, %7, %9
+    SBUTTERFLY qdq, %6, %8, %9
+    SWAP %2, %5
+    SWAP %4, %7
+%else
+; in:  m0..m7
+; out: m0..m7, unless %11 in which case m2 is in %9
+; spills into %9 and %10
+    movdqa %9, m%7
+    SBUTTERFLY dq,  %1, %2, %7
+    movdqa %10, m%2
+    movdqa m%7, %9
+    SBUTTERFLY dq,  %3, %4, %2
+    SBUTTERFLY dq,  %5, %6, %2
+    SBUTTERFLY dq,  %7, %8, %2
+    SBUTTERFLY qdq, %1, %3, %2
+    movdqa %9, m%3
+    movdqa m%2, %10
+    SBUTTERFLY qdq, %2, %4, %3
+    SBUTTERFLY qdq, %5, %7, %3
+    SBUTTERFLY qdq, %6, %8, %3
+    SWAP %2, %5
+    SWAP %4, %7
+%if %0<11
+    movdqa m%3, %9
+%endif
+%endif
+%endmacro
+
+%macro TRANSPOSE8x8W 9-11
+%if ARCH_X86_64
+    SBUTTERFLY wd,  %1, %2, %9
+    SBUTTERFLY wd,  %3, %4, %9
+    SBUTTERFLY wd,  %5, %6, %9
+    SBUTTERFLY wd,  %7, %8, %9
+    SBUTTERFLY dq,  %1, %3, %9
+    SBUTTERFLY dq,  %2, %4, %9
+    SBUTTERFLY dq,  %5, %7, %9
+    SBUTTERFLY dq,  %6, %8, %9
+    SBUTTERFLY qdq, %1, %5, %9
+    SBUTTERFLY qdq, %2, %6, %9
+    SBUTTERFLY qdq, %3, %7, %9
+    SBUTTERFLY qdq, %4, %8, %9
+    SWAP %2, %5
+    SWAP %4, %7
+%else
+; in:  m0..m7, unless %11 in which case m6 is in %9
+; out: m0..m7, unless %11 in which case m4 is in %10
+; spills into %9 and %10
+%if %0<11
+    movdqa %9, m%7
+%endif
+    SBUTTERFLY wd,  %1, %2, %7
+    movdqa %10, m%2
+    movdqa m%7, %9
+    SBUTTERFLY wd,  %3, %4, %2
+    SBUTTERFLY wd,  %5, %6, %2
+    SBUTTERFLY wd,  %7, %8, %2
+    SBUTTERFLY dq,  %1, %3, %2
+    movdqa %9, m%3
+    movdqa m%2, %10
+    SBUTTERFLY dq,  %2, %4, %3
+    SBUTTERFLY dq,  %5, %7, %3
+    SBUTTERFLY dq,  %6, %8, %3
+    SBUTTERFLY qdq, %1, %5, %3
+    SBUTTERFLY qdq, %2, %6, %3
+    movdqa %10, m%2
+    movdqa m%3, %9
+    SBUTTERFLY qdq, %3, %7, %2
+    SBUTTERFLY qdq, %4, %8, %2
+    SWAP %2, %5
+    SWAP %4, %7
+%if %0<11
+    movdqa m%5, %10
+%endif
+%endif
+%endmacro
+
+%macro TRANSPOSE16x16W 18-19
+; in:  m0..m15, unless %19 in which case m6 is in %17
+; out: m0..m15, unless %19 in which case m4 is in %18
+; spills into %17 and %18
+%if %0 < 19
+    mova       %17, m%7
+%endif
+
+    SBUTTERFLY dqqq, %1,  %9, %7
+    SBUTTERFLY dqqq, %2, %10, %7
+    SBUTTERFLY dqqq, %3, %11, %7
+    SBUTTERFLY dqqq, %4, %12, %7
+    SBUTTERFLY dqqq, %5, %13, %7
+    SBUTTERFLY dqqq, %6, %14, %7
+    mova       %18, m%14
+    mova       m%7, %17
+    SBUTTERFLY dqqq, %7, %15, %14
+    SBUTTERFLY dqqq, %8, %16, %14
+
+    SBUTTERFLY  wd,  %1,  %2, %14
+    SBUTTERFLY  wd,  %3,  %4, %14
+    SBUTTERFLY  wd,  %5,  %6, %14
+    SBUTTERFLY  wd,  %7,  %8, %14
+    SBUTTERFLY  wd,  %9, %10, %14
+    SBUTTERFLY  wd, %11, %12, %14
+    mova       %17, m%12
+    mova      m%14, %18
+    SBUTTERFLY  wd, %13, %14, %12
+    SBUTTERFLY  wd, %15, %16, %12
+
+    SBUTTERFLY  dq,  %1,  %3, %12
+    SBUTTERFLY  dq,  %2,  %4, %12
+    SBUTTERFLY  dq,  %5,  %7, %12
+    SBUTTERFLY  dq,  %6,  %8, %12
+    SBUTTERFLY  dq,  %9, %11, %12
+    mova       %18, m%11
+    mova      m%12, %17
+    SBUTTERFLY  dq, %10, %12, %11
+    SBUTTERFLY  dq, %13, %15, %11
+    SBUTTERFLY  dq, %14, %16, %11
+
+    SBUTTERFLY qdq,  %1,  %5, %11
+    SBUTTERFLY qdq,  %2,  %6, %11
+    SBUTTERFLY qdq,  %3,  %7, %11
+    SBUTTERFLY qdq,  %4,  %8, %11
+
+    SWAP        %2, %5
+    SWAP        %4, %7
+
+    SBUTTERFLY qdq,  %9, %13, %11
+    SBUTTERFLY qdq, %10, %14, %11
+    mova      m%11, %18
+    mova       %18, m%5
+    SBUTTERFLY qdq, %11, %15, %5
+    SBUTTERFLY qdq, %12, %16, %5
+
+%if %0 < 19
+    mova       m%5, %18
+%endif
+
+    SWAP       %10, %13
+    SWAP       %12, %15
+%endmacro
+
+%macro TRANSPOSE_8X8B 8
+    %if mmsize == 8
+        %error "This macro does not support mmsize == 8"
+    %endif
+    punpcklbw m%1, m%2
+    punpcklbw m%3, m%4
+    punpcklbw m%5, m%6
+    punpcklbw m%7, m%8
+    TRANSPOSE4x4W %1, %3, %5, %7, %2
+    MOVHL m%2, m%1
+    MOVHL m%4, m%3
+    MOVHL m%6, m%5
+    MOVHL m%8, m%7
+%endmacro
+
+; PABSW macro assumes %1 != %2, while ABS1/2 macros work in-place
+%macro PABSW 2
+%if cpuflag(ssse3)
+    pabsw      %1, %2
+%elif cpuflag(mmxext)
+    pxor    %1, %1
+    psubw   %1, %2
+    pmaxsw  %1, %2
+%else
+    pxor       %1, %1
+    pcmpgtw    %1, %2
+    pxor       %2, %1
+    psubw      %2, %1
+    SWAP       %1, %2
+%endif
+%endmacro
+
+%macro PSIGNW 2
+%if cpuflag(ssse3)
+    psignw     %1, %2
+%else
+    pxor       %1, %2
+    psubw      %1, %2
+%endif
+%endmacro
+
+%macro ABS1 2
+%if cpuflag(ssse3)
+    pabsw   %1, %1
+%elif cpuflag(mmxext) ; a, tmp
+    pxor    %2, %2
+    psubw   %2, %1
+    pmaxsw  %1, %2
+%else ; a, tmp
+    pxor       %2, %2
+    pcmpgtw    %2, %1
+    pxor       %1, %2
+    psubw      %1, %2
+%endif
+%endmacro
+
+%macro ABS2 4
+%if cpuflag(ssse3)
+    pabsw   %1, %1
+    pabsw   %2, %2
+%elif cpuflag(mmxext) ; a, b, tmp0, tmp1
+    pxor    %3, %3
+    pxor    %4, %4
+    psubw   %3, %1
+    psubw   %4, %2
+    pmaxsw  %1, %3
+    pmaxsw  %2, %4
+%else ; a, b, tmp0, tmp1
+    pxor       %3, %3
+    pxor       %4, %4
+    pcmpgtw    %3, %1
+    pcmpgtw    %4, %2
+    pxor       %1, %3
+    pxor       %2, %4
+    psubw      %1, %3
+    psubw      %2, %4
+%endif
+%endmacro
+
+%macro ABSB 2 ; source mmreg, temp mmreg (unused for SSSE3)
+%if cpuflag(ssse3)
+    pabsb   %1, %1
+%else
+    pxor    %2, %2
+    psubb   %2, %1
+    pminub  %1, %2
+%endif
+%endmacro
+
+%macro ABSB2 4 ; src1, src2, tmp1, tmp2 (tmp1/2 unused for SSSE3)
+%if cpuflag(ssse3)
+    pabsb   %1, %1
+    pabsb   %2, %2
+%else
+    pxor    %3, %3
+    pxor    %4, %4
+    psubb   %3, %1
+    psubb   %4, %2
+    pminub  %1, %3
+    pminub  %2, %4
+%endif
+%endmacro
+
+%macro ABSD2 4
+    pxor    %3, %3
+    pxor    %4, %4
+    pcmpgtd %3, %1
+    pcmpgtd %4, %2
+    pxor    %1, %3
+    pxor    %2, %4
+    psubd   %1, %3
+    psubd   %2, %4
+%endmacro
+
+%macro ABS4 6
+    ABS2 %1, %2, %5, %6
+    ABS2 %3, %4, %5, %6
+%endmacro
+
+%macro SPLATB_LOAD 3
+%if cpuflag(ssse3)
+    movd      %1, [%2-3]
+    pshufb    %1, %3
+%else
+    movd      %1, [%2-3] ;to avoid crossing a cacheline
+    punpcklbw %1, %1
+    SPLATW    %1, %1, 3
+%endif
+%endmacro
+
+%macro SPLATB_REG 3
+%if cpuflag(ssse3)
+    movd      %1, %2d
+    pshufb    %1, %3
+%else
+    movd      %1, %2d
+    punpcklbw %1, %1
+    SPLATW    %1, %1, 0
+%endif
+%endmacro
+
+%macro HADDD 2 ; sum junk
+%if sizeof%1 == 32
+%define %2 xmm%2
+    vextracti128 %2, %1, 1
+%define %1 xmm%1
+    paddd   %1, %2
+%endif
+%if mmsize >= 16
+%if cpuflag(xop) && sizeof%1 == 16
+    vphadddq %1, %1
+%endif
+    movhlps %2, %1
+    paddd   %1, %2
+%endif
+%if notcpuflag(xop) || sizeof%1 != 16
+%if cpuflag(mmxext)
+    PSHUFLW %2, %1, q0032
+%else ; mmx
+    mova    %2, %1
+    psrlq   %2, 32
+%endif
+    paddd   %1, %2
+%endif
+%undef %1
+%undef %2
+%endmacro
+
+%macro HADDW 2 ; reg, tmp
+%if cpuflag(xop) && sizeof%1 == 16
+    vphaddwq  %1, %1
+    movhlps   %2, %1
+    paddd     %1, %2
+%else
+    pmaddwd %1, [pw_1]
+    HADDD   %1, %2
+%endif
+%endmacro
+
+%macro HADDPS 3 ; dst, src, tmp
+%if cpuflag(sse3)
+    haddps  %1, %1, %2
+%else
+    movaps  %3, %1
+    shufps  %1, %2, q2020
+    shufps  %3, %2, q3131
+    addps   %1, %3
+%endif
+%endmacro
+
+%macro PALIGNR 4-5
+%if cpuflag(ssse3)
+%if %0==5
+    palignr %1, %2, %3, %4
+%else
+    palignr %1, %2, %3
+%endif
+%else ; [dst,] src1, src2, imm, tmp
+    %define %%dst %1
+%if %0==5
+%ifnidn %1, %2
+    mova    %%dst, %2
+%endif
+    %rotate 1
+%endif
+%ifnidn %4, %2
+    mova    %4, %2
+%endif
+%if mmsize==8
+    psllq   %%dst, (8-%3)*8
+    psrlq   %4, %3*8
+%else
+    pslldq  %%dst, 16-%3
+    psrldq  %4, %3
+%endif
+    por     %%dst, %4
+%endif
+%endmacro
+
+%macro PAVGB 2-4
+%if cpuflag(mmxext)
+    pavgb   %1, %2
+%elif cpuflag(3dnow)
+    pavgusb %1, %2
+%elif cpuflag(mmx)
+    movu   %3, %2
+    por    %3, %1
+    pxor   %1, %2
+    pand   %1, %4
+    psrlq  %1, 1
+    psubb  %3, %1
+    SWAP   %1, %3
+%endif
+%endmacro
+
+%macro PSHUFLW 1+
+    %if mmsize == 8
+        pshufw %1
+    %else
+        pshuflw %1
+    %endif
+%endmacro
+
+%macro PSWAPD 2
+%if cpuflag(mmxext)
+    pshufw    %1, %2, q1032
+%elif cpuflag(3dnowext)
+    pswapd    %1, %2
+%elif cpuflag(3dnow)
+    movq      %1, %2
+    psrlq     %1, 32
+    punpckldq %1, %2
+%endif
+%endmacro
+
+%macro DEINTB 5 ; mask, reg1, mask, reg2, optional src to fill masks from
+%ifnum %5
+    pand   m%3, m%5, m%4 ; src .. y6 .. y4
+    pand   m%1, m%5, m%2 ; dst .. y6 .. y4
+%else
+    mova   m%1, %5
+    pand   m%3, m%1, m%4 ; src .. y6 .. y4
+    pand   m%1, m%1, m%2 ; dst .. y6 .. y4
+%endif
+    psrlw  m%2, 8        ; dst .. y7 .. y5
+    psrlw  m%4, 8        ; src .. y7 .. y5
+%endmacro
+
+%macro SUMSUB_BA 3-4
+%if %0==3
+    padd%1  m%2, m%3
+    padd%1  m%3, m%3
+    psub%1  m%3, m%2
+%else
+%if avx_enabled == 0
+    mova    m%4, m%2
+    padd%1  m%2, m%3
+    psub%1  m%3, m%4
+%else
+    padd%1  m%4, m%2, m%3
+    psub%1  m%3, m%2
+    SWAP    %2, %4
+%endif
+%endif
+%endmacro
+
+%macro SUMSUB_BADC 5-6
+%if %0==6
+    SUMSUB_BA %1, %2, %3, %6
+    SUMSUB_BA %1, %4, %5, %6
+%else
+    padd%1  m%2, m%3
+    padd%1  m%4, m%5
+    padd%1  m%3, m%3
+    padd%1  m%5, m%5
+    psub%1  m%3, m%2
+    psub%1  m%5, m%4
+%endif
+%endmacro
+
+%macro SUMSUB2_AB 4
+%ifnum %3
+    psub%1  m%4, m%2, m%3
+    psub%1  m%4, m%3
+    padd%1  m%2, m%2
+    padd%1  m%2, m%3
+%else
+    mova    m%4, m%2
+    padd%1  m%2, m%2
+    padd%1  m%2, %3
+    psub%1  m%4, %3
+    psub%1  m%4, %3
+%endif
+%endmacro
+
+%macro SUMSUB2_BA 4
+%if avx_enabled == 0
+    mova    m%4, m%2
+    padd%1  m%2, m%3
+    padd%1  m%2, m%3
+    psub%1  m%3, m%4
+    psub%1  m%3, m%4
+%else
+    padd%1  m%4, m%2, m%3
+    padd%1  m%4, m%3
+    psub%1  m%3, m%2
+    psub%1  m%3, m%2
+    SWAP     %2,  %4
+%endif
+%endmacro
+
+%macro SUMSUBD2_AB 5
+%ifnum %4
+    psra%1  m%5, m%2, 1  ; %3: %3>>1
+    psra%1  m%4, m%3, 1  ; %2: %2>>1
+    padd%1  m%4, m%2     ; %3: %3>>1+%2
+    psub%1  m%5, m%3     ; %2: %2>>1-%3
+    SWAP     %2, %5
+    SWAP     %3, %4
+%else
+    mova    %5, m%2
+    mova    %4, m%3
+    psra%1  m%3, 1  ; %3: %3>>1
+    psra%1  m%2, 1  ; %2: %2>>1
+    padd%1  m%3, %5 ; %3: %3>>1+%2
+    psub%1  m%2, %4 ; %2: %2>>1-%3
+%endif
+%endmacro
+
+%macro DCT4_1D 5
+%ifnum %5
+    SUMSUB_BADC w, %4, %1, %3, %2, %5
+    SUMSUB_BA   w, %3, %4, %5
+    SUMSUB2_AB  w, %1, %2, %5
+    SWAP %1, %3, %4, %5, %2
+%else
+    SUMSUB_BADC w, %4, %1, %3, %2
+    SUMSUB_BA   w, %3, %4
+    mova     [%5], m%2
+    SUMSUB2_AB  w, %1, [%5], %2
+    SWAP %1, %3, %4, %2
+%endif
+%endmacro
+
+%macro IDCT4_1D 6-7
+%ifnum %6
+    SUMSUBD2_AB %1, %3, %5, %7, %6
+    ; %3: %3>>1-%5 %5: %3+%5>>1
+    SUMSUB_BA   %1, %4, %2, %7
+    ; %4: %2+%4 %2: %2-%4
+    SUMSUB_BADC %1, %5, %4, %3, %2, %7
+    ; %5: %2+%4 + (%3+%5>>1)
+    ; %4: %2+%4 - (%3+%5>>1)
+    ; %3: %2-%4 + (%3>>1-%5)
+    ; %2: %2-%4 - (%3>>1-%5)
+%else
+%ifidn %1, w
+    SUMSUBD2_AB %1, %3, %5, [%6], [%6+16]
+%else
+    SUMSUBD2_AB %1, %3, %5, [%6], [%6+32]
+%endif
+    SUMSUB_BA   %1, %4, %2
+    SUMSUB_BADC %1, %5, %4, %3, %2
+%endif
+    SWAP %2, %5, %4
+    ; %2: %2+%4 + (%3+%5>>1) row0
+    ; %3: %2-%4 + (%3>>1-%5) row1
+    ; %4: %2-%4 - (%3>>1-%5) row2
+    ; %5: %2+%4 - (%3+%5>>1) row3
+%endmacro
+
+
+%macro LOAD_DIFF 5
+%ifidn %3, none
+    movh       %1, %4
+    movh       %2, %5
+    punpcklbw  %1, %2
+    punpcklbw  %2, %2
+    psubw      %1, %2
+%else
+    movh       %1, %4
+    punpcklbw  %1, %3
+    movh       %2, %5
+    punpcklbw  %2, %3
+    psubw      %1, %2
+%endif
+%endmacro
+
+%macro STORE_DCT 6
+    movq   [%5+%6+ 0], m%1
+    movq   [%5+%6+ 8], m%2
+    movq   [%5+%6+16], m%3
+    movq   [%5+%6+24], m%4
+    movhps [%5+%6+32], m%1
+    movhps [%5+%6+40], m%2
+    movhps [%5+%6+48], m%3
+    movhps [%5+%6+56], m%4
+%endmacro
+
+%macro LOAD_DIFF_8x4P 7-10 r0,r2,0 ; 4x dest, 2x temp, 2x pointer, increment?
+    LOAD_DIFF m%1, m%5, m%7, [%8],      [%9]
+    LOAD_DIFF m%2, m%6, m%7, [%8+r1],   [%9+r3]
+    LOAD_DIFF m%3, m%5, m%7, [%8+2*r1], [%9+2*r3]
+    LOAD_DIFF m%4, m%6, m%7, [%8+r4],   [%9+r5]
+%if %10
+    lea %8, [%8+4*r1]
+    lea %9, [%9+4*r3]
+%endif
+%endmacro
+
+%macro DIFFx2 6-7
+    movh       %3, %5
+    punpcklbw  %3, %4
+    psraw      %1, 6
+    paddsw     %1, %3
+    movh       %3, %6
+    punpcklbw  %3, %4
+    psraw      %2, 6
+    paddsw     %2, %3
+    packuswb   %2, %1
+%endmacro
+
+%macro STORE_DIFF 4
+    movh       %2, %4
+    punpcklbw  %2, %3
+    psraw      %1, 6
+    paddsw     %1, %2
+    packuswb   %1, %1
+    movh       %4, %1
+%endmacro
+
+%macro STORE_DIFFx2 8 ; add1, add2, reg1, reg2, zero, shift, source, stride
+    movh       %3, [%7]
+    movh       %4, [%7+%8]
+    psraw      %1, %6
+    psraw      %2, %6
+    punpcklbw  %3, %5
+    punpcklbw  %4, %5
+    paddw      %3, %1
+    paddw      %4, %2
+    packuswb   %3, %5
+    packuswb   %4, %5
+    movh     [%7], %3
+    movh  [%7+%8], %4
+%endmacro
+
+%macro PMINUB 3 ; dst, src, ignored
+%if cpuflag(mmxext)
+    pminub   %1, %2
+%else ; dst, src, tmp
+    mova     %3, %1
+    psubusb  %3, %2
+    psubb    %1, %3
+%endif
+%endmacro
+
+%macro SPLATW 2-3 0
+%if cpuflag(avx2) && %3 == 0
+    vpbroadcastw %1, %2
+%elif mmsize == 16
+    pshuflw    %1, %2, (%3)*0x55
+    punpcklqdq %1, %1
+%elif cpuflag(mmxext)
+    pshufw     %1, %2, (%3)*0x55
+%else
+    %ifnidn %1, %2
+        mova       %1, %2
+    %endif
+    %if %3 & 2
+        punpckhwd  %1, %1
+    %else
+        punpcklwd  %1, %1
+    %endif
+    %if %3 & 1
+        punpckhwd  %1, %1
+    %else
+        punpcklwd  %1, %1
+    %endif
+%endif
+%endmacro
+
+%macro SPLATD 1
+%if mmsize == 8
+    punpckldq  %1, %1
+%elif cpuflag(sse2)
+    pshufd  %1, %1, 0
+%elif cpuflag(sse)
+    shufps  %1, %1, 0
+%endif
+%endmacro
+
+%macro CLIPUB 3 ;(dst, min, max)
+    pmaxub %1, %2
+    pminub %1, %3
+%endmacro
+
+%macro CLIPW 3 ;(dst, min, max)
+    pmaxsw %1, %2
+    pminsw %1, %3
+%endmacro
+
+%macro PMINSD 3 ; dst, src, tmp/unused
+%if cpuflag(sse4)
+    pminsd    %1, %2
+%elif cpuflag(sse2)
+    cvtdq2ps  %1, %1
+    minps     %1, %2
+    cvtps2dq  %1, %1
+%else
+    mova      %3, %2
+    pcmpgtd   %3, %1
+    pxor      %1, %2
+    pand      %1, %3
+    pxor      %1, %2
+%endif
+%endmacro
+
+%macro PMAXSD 3 ; dst, src, tmp/unused
+%if cpuflag(sse4)
+    pmaxsd    %1, %2
+%else
+    mova      %3, %1
+    pcmpgtd   %3, %2
+    pand      %1, %3
+    pandn     %3, %2
+    por       %1, %3
+%endif
+%endmacro
+
+%macro CLIPD 3-4
+%if cpuflag(sse4);  src/dst, min, max, unused
+    pminsd  %1, %3
+    pmaxsd  %1, %2
+%elif cpuflag(sse2) ; src/dst, min (float), max (float), unused
+    cvtdq2ps  %1, %1
+    minps     %1, %3
+    maxps     %1, %2
+    cvtps2dq  %1, %1
+%else               ; src/dst, min, max, tmp
+    PMINSD    %1, %3, %4
+    PMAXSD    %1, %2, %4
+%endif
+%endmacro
+
+%macro VBROADCASTSS 2 ; dst xmm/ymm, src m32/xmm
+%if cpuflag(avx2)
+    vbroadcastss  %1, %2
+%elif cpuflag(avx)
+    %ifnum sizeof%2         ; avx1 register
+        shufps  xmm%1, xmm%2, xmm%2, q0000
+        %if sizeof%1 >= 32  ; mmsize>=32
+            vinsertf128  %1, %1, xmm%1, 1
+        %endif
+    %else                   ; avx1 memory
+        vbroadcastss  %1, %2
+    %endif
+%else
+    %ifnum sizeof%2         ; sse register
+        shufps  %1, %2, %2, q0000
+    %else                   ; sse memory
+        movss   %1, %2
+        shufps  %1, %1, 0
+    %endif
+%endif
+%endmacro
+
+%macro VBROADCASTSD 2 ; dst xmm/ymm, src m64
+%if cpuflag(avx) && mmsize == 32
+    vbroadcastsd %1, %2
+%elif cpuflag(sse3)
+    movddup      %1, %2
+%else ; sse2
+    movsd        %1, %2
+    movlhps      %1, %1
+%endif
+%endmacro
+
+%macro VPBROADCASTD 2 ; dst xmm/ymm, src m32/xmm
+%if cpuflag(avx2)
+    vpbroadcastd  %1, %2
+%elif cpuflag(avx) && sizeof%1 >= 32
+    %error vpbroadcastd not possible with ymm on avx1. try vbroadcastss
+%else
+    %ifnum sizeof%2         ; sse2 register
+        pshufd  %1, %2, q0000
+    %else                   ; sse memory
+        movd    %1, %2
+        pshufd  %1, %1, 0
+    %endif
+%endif
+%endmacro
+
+%macro VBROADCASTI128 2 ; dst xmm/ymm, src : 128bits val
+%if mmsize > 16
+    vbroadcasti128 %1, %2
+%else
+    mova           %1, %2
+%endif
+%endmacro
+
+%macro SHUFFLE_MASK_W 8
+    %rep 8
+        %if %1>=0x80
+            db %1, %1
+        %else
+            db %1*2
+            db %1*2+1
+        %endif
+        %rotate 1
+    %endrep
+%endmacro
+
+%macro PMOVSXWD 2; dst, src
+%if cpuflag(sse4)
+    pmovsxwd     %1, %2
+%else
+    %ifnidn %1, %2
+    mova         %1, %2
+    %endif
+    punpcklwd    %1, %1
+    psrad        %1, 16
+%endif
+%endmacro
+
+; Wrapper for non-FMA version of fmaddps
+%macro FMULADD_PS 5
+    %if cpuflag(fma3) || cpuflag(fma4)
+        fmaddps %1, %2, %3, %4
+    %elifidn %1, %4
+        mulps   %5, %2, %3
+        addps   %1, %4, %5
+    %else
+        mulps   %1, %2, %3
+        addps   %1, %4
+    %endif
+%endmacro
+
+%macro LSHIFT 2
+%if mmsize > 8
+    pslldq  %1, %2
+%else
+    psllq   %1, 8*(%2)
+%endif
+%endmacro
+
+%macro RSHIFT 2
+%if mmsize > 8
+    psrldq  %1, %2
+%else
+    psrlq   %1, 8*(%2)
+%endif
+%endmacro
+
+%macro MOVHL 2 ; dst, src
+%ifidn %1, %2
+    punpckhqdq %1, %2
+%elif cpuflag(avx)
+    punpckhqdq %1, %2, %2
+%elif cpuflag(sse4)
+    pshufd     %1, %2, q3232 ; pshufd is slow on some older CPUs, so only use it on more modern ones
+%else
+    movhlps    %1, %2        ; may cause an int/float domain transition and has a dependency on dst
+%endif
+%endmacro
+
+; Horizontal Sum of Packed Single precision floats
+; The resulting sum is in all elements.
+%macro HSUMPS 2 ; dst/src, tmp
+%if cpuflag(avx)
+    %if sizeof%1>=32  ; avx
+        vperm2f128  %2, %1, %1, (0)*16+(1)
+        addps       %1, %2
+    %endif
+    shufps      %2, %1, %1, q1032
+    addps       %1, %2
+    shufps      %2, %1, %1, q0321
+    addps       %1, %2
+%else  ; this form is a bit faster than the short avx-like emulation.
+    movaps      %2, %1
+    shufps      %1, %1, q1032
+    addps       %1, %2
+    movaps      %2, %1
+    shufps      %1, %1, q0321
+    addps       %1, %2
+    ; all %1 members should be equal for as long as float a+b==b+a
+%endif
+%endmacro
+
+; Emulate blendvps if not available
+;
+; src_b is destroyed when using emulation with logical operands
+; SSE41 blendv instruction is hard coded to use xmm0 as mask
+%macro BLENDVPS 3 ; dst/src_a, src_b, mask
+%if cpuflag(avx)
+    blendvps  %1, %1, %2, %3
+%elif cpuflag(sse4)
+    %ifnidn %3,xmm0
+        %error sse41 blendvps uses xmm0 as default 3d operand, you used %3
+    %endif
+    blendvps  %1, %2, %3
+%else
+    xorps  %2, %1
+    andps  %2, %3
+    xorps  %1, %2
+%endif
+%endmacro
+
+; Emulate pblendvb if not available
+;
+; src_b is destroyed when using emulation with logical operands
+; SSE41 blendv instruction is hard coded to use xmm0 as mask
+%macro PBLENDVB 3 ; dst/src_a, src_b, mask
+%if cpuflag(avx)
+    %if cpuflag(avx) && notcpuflag(avx2) && sizeof%1 >= 32
+        %error pblendb not possible with ymm on avx1, try blendvps.
+    %endif
+    pblendvb  %1, %1, %2, %3
+%elif cpuflag(sse4)
+    %ifnidn %3,xmm0
+        %error sse41 pblendvd uses xmm0 as default 3d operand, you used %3
+    %endif
+    pblendvb  %1, %2, %3
+%else
+    pxor  %2, %1
+    pand  %2, %3
+    pxor  %1, %2
+%endif
+%endmacro
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/xga_font_data.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/xga_font_data.c
new file mode 100644
index 000000000..3aed3142c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/xga_font_data.c
@@ -0,0 +1,417 @@
+/*
+ * CGA/EGA/VGA ROM font data
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * CGA/EGA/VGA ROM font data
+ */
+
+#include <stdint.h>
+#include "xga_font_data.h"
+
+const uint8_t avpriv_cga_font[2048] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x81, 0xa5, 0x81, 0xbd, 0x99, 0x81, 0x7e,
+ 0x7e, 0xff, 0xdb, 0xff, 0xc3, 0xe7, 0xff, 0x7e, 0x6c, 0xfe, 0xfe, 0xfe, 0x7c, 0x38, 0x10, 0x00,
+ 0x10, 0x38, 0x7c, 0xfe, 0x7c, 0x38, 0x10, 0x00, 0x38, 0x7c, 0x38, 0xfe, 0xfe, 0x7c, 0x38, 0x7c,
+ 0x10, 0x10, 0x38, 0x7c, 0xfe, 0x7c, 0x38, 0x7c, 0x00, 0x00, 0x18, 0x3c, 0x3c, 0x18, 0x00, 0x00,
+ 0xff, 0xff, 0xe7, 0xc3, 0xc3, 0xe7, 0xff, 0xff, 0x00, 0x3c, 0x66, 0x42, 0x42, 0x66, 0x3c, 0x00,
+ 0xff, 0xc3, 0x99, 0xbd, 0xbd, 0x99, 0xc3, 0xff, 0x0f, 0x07, 0x0f, 0x7d, 0xcc, 0xcc, 0xcc, 0x78,
+ 0x3c, 0x66, 0x66, 0x66, 0x3c, 0x18, 0x7e, 0x18, 0x3f, 0x33, 0x3f, 0x30, 0x30, 0x70, 0xf0, 0xe0,
+ 0x7f, 0x63, 0x7f, 0x63, 0x63, 0x67, 0xe6, 0xc0, 0x99, 0x5a, 0x3c, 0xe7, 0xe7, 0x3c, 0x5a, 0x99,
+ 0x80, 0xe0, 0xf8, 0xfe, 0xf8, 0xe0, 0x80, 0x00, 0x02, 0x0e, 0x3e, 0xfe, 0x3e, 0x0e, 0x02, 0x00,
+ 0x18, 0x3c, 0x7e, 0x18, 0x18, 0x7e, 0x3c, 0x18, 0x66, 0x66, 0x66, 0x66, 0x66, 0x00, 0x66, 0x00,
+ 0x7f, 0xdb, 0xdb, 0x7b, 0x1b, 0x1b, 0x1b, 0x00, 0x3e, 0x63, 0x38, 0x6c, 0x6c, 0x38, 0xcc, 0x78,
+ 0x00, 0x00, 0x00, 0x00, 0x7e, 0x7e, 0x7e, 0x00, 0x18, 0x3c, 0x7e, 0x18, 0x7e, 0x3c, 0x18, 0xff,
+ 0x18, 0x3c, 0x7e, 0x18, 0x18, 0x18, 0x18, 0x00, 0x18, 0x18, 0x18, 0x18, 0x7e, 0x3c, 0x18, 0x00,
+ 0x00, 0x18, 0x0c, 0xfe, 0x0c, 0x18, 0x00, 0x00, 0x00, 0x30, 0x60, 0xfe, 0x60, 0x30, 0x00, 0x00,
+ 0x00, 0x00, 0xc0, 0xc0, 0xc0, 0xfe, 0x00, 0x00, 0x00, 0x24, 0x66, 0xff, 0x66, 0x24, 0x00, 0x00,
+ 0x00, 0x18, 0x3c, 0x7e, 0xff, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0x7e, 0x3c, 0x18, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x78, 0x78, 0x30, 0x30, 0x00, 0x30, 0x00,
+ 0x6c, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6c, 0x6c, 0xfe, 0x6c, 0xfe, 0x6c, 0x6c, 0x00,
+ 0x30, 0x7c, 0xc0, 0x78, 0x0c, 0xf8, 0x30, 0x00, 0x00, 0xc6, 0xcc, 0x18, 0x30, 0x66, 0xc6, 0x00,
+ 0x38, 0x6c, 0x38, 0x76, 0xdc, 0xcc, 0x76, 0x00, 0x60, 0x60, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x18, 0x30, 0x60, 0x60, 0x60, 0x30, 0x18, 0x00, 0x60, 0x30, 0x18, 0x18, 0x18, 0x30, 0x60, 0x00,
+ 0x00, 0x66, 0x3c, 0xff, 0x3c, 0x66, 0x00, 0x00, 0x00, 0x30, 0x30, 0xfc, 0x30, 0x30, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x60, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0x80, 0x00,
+ 0x7c, 0xc6, 0xce, 0xde, 0xf6, 0xe6, 0x7c, 0x00, 0x30, 0x70, 0x30, 0x30, 0x30, 0x30, 0xfc, 0x00,
+ 0x78, 0xcc, 0x0c, 0x38, 0x60, 0xcc, 0xfc, 0x00, 0x78, 0xcc, 0x0c, 0x38, 0x0c, 0xcc, 0x78, 0x00,
+ 0x1c, 0x3c, 0x6c, 0xcc, 0xfe, 0x0c, 0x1e, 0x00, 0xfc, 0xc0, 0xf8, 0x0c, 0x0c, 0xcc, 0x78, 0x00,
+ 0x38, 0x60, 0xc0, 0xf8, 0xcc, 0xcc, 0x78, 0x00, 0xfc, 0xcc, 0x0c, 0x18, 0x30, 0x30, 0x30, 0x00,
+ 0x78, 0xcc, 0xcc, 0x78, 0xcc, 0xcc, 0x78, 0x00, 0x78, 0xcc, 0xcc, 0x7c, 0x0c, 0x18, 0x70, 0x00,
+ 0x00, 0x30, 0x30, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x30, 0x30, 0x60,
+ 0x18, 0x30, 0x60, 0xc0, 0x60, 0x30, 0x18, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x00, 0xfc, 0x00, 0x00,
+ 0x60, 0x30, 0x18, 0x0c, 0x18, 0x30, 0x60, 0x00, 0x78, 0xcc, 0x0c, 0x18, 0x30, 0x00, 0x30, 0x00,
+ 0x7c, 0xc6, 0xde, 0xde, 0xde, 0xc0, 0x78, 0x00, 0x30, 0x78, 0xcc, 0xcc, 0xfc, 0xcc, 0xcc, 0x00,
+ 0xfc, 0x66, 0x66, 0x7c, 0x66, 0x66, 0xfc, 0x00, 0x3c, 0x66, 0xc0, 0xc0, 0xc0, 0x66, 0x3c, 0x00,
+ 0xf8, 0x6c, 0x66, 0x66, 0x66, 0x6c, 0xf8, 0x00, 0xfe, 0x62, 0x68, 0x78, 0x68, 0x62, 0xfe, 0x00,
+ 0xfe, 0x62, 0x68, 0x78, 0x68, 0x60, 0xf0, 0x00, 0x3c, 0x66, 0xc0, 0xc0, 0xce, 0x66, 0x3e, 0x00,
+ 0xcc, 0xcc, 0xcc, 0xfc, 0xcc, 0xcc, 0xcc, 0x00, 0x78, 0x30, 0x30, 0x30, 0x30, 0x30, 0x78, 0x00,
+ 0x1e, 0x0c, 0x0c, 0x0c, 0xcc, 0xcc, 0x78, 0x00, 0xe6, 0x66, 0x6c, 0x78, 0x6c, 0x66, 0xe6, 0x00,
+ 0xf0, 0x60, 0x60, 0x60, 0x62, 0x66, 0xfe, 0x00, 0xc6, 0xee, 0xfe, 0xfe, 0xd6, 0xc6, 0xc6, 0x00,
+ 0xc6, 0xe6, 0xf6, 0xde, 0xce, 0xc6, 0xc6, 0x00, 0x38, 0x6c, 0xc6, 0xc6, 0xc6, 0x6c, 0x38, 0x00,
+ 0xfc, 0x66, 0x66, 0x7c, 0x60, 0x60, 0xf0, 0x00, 0x78, 0xcc, 0xcc, 0xcc, 0xdc, 0x78, 0x1c, 0x00,
+ 0xfc, 0x66, 0x66, 0x7c, 0x6c, 0x66, 0xe6, 0x00, 0x78, 0xcc, 0xe0, 0x70, 0x1c, 0xcc, 0x78, 0x00,
+ 0xfc, 0xb4, 0x30, 0x30, 0x30, 0x30, 0x78, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xfc, 0x00,
+ 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x78, 0x30, 0x00, 0xc6, 0xc6, 0xc6, 0xd6, 0xfe, 0xee, 0xc6, 0x00,
+ 0xc6, 0xc6, 0x6c, 0x38, 0x38, 0x6c, 0xc6, 0x00, 0xcc, 0xcc, 0xcc, 0x78, 0x30, 0x30, 0x78, 0x00,
+ 0xfe, 0xc6, 0x8c, 0x18, 0x32, 0x66, 0xfe, 0x00, 0x78, 0x60, 0x60, 0x60, 0x60, 0x60, 0x78, 0x00,
+ 0xc0, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x02, 0x00, 0x78, 0x18, 0x18, 0x18, 0x18, 0x18, 0x78, 0x00,
+ 0x10, 0x38, 0x6c, 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff,
+ 0x30, 0x30, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0x0c, 0x7c, 0xcc, 0x76, 0x00,
+ 0xe0, 0x60, 0x60, 0x7c, 0x66, 0x66, 0xdc, 0x00, 0x00, 0x00, 0x78, 0xcc, 0xc0, 0xcc, 0x78, 0x00,
+ 0x1c, 0x0c, 0x0c, 0x7c, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0x00, 0x78, 0xcc, 0xfc, 0xc0, 0x78, 0x00,
+ 0x38, 0x6c, 0x60, 0xf0, 0x60, 0x60, 0xf0, 0x00, 0x00, 0x00, 0x76, 0xcc, 0xcc, 0x7c, 0x0c, 0xf8,
+ 0xe0, 0x60, 0x6c, 0x76, 0x66, 0x66, 0xe6, 0x00, 0x30, 0x00, 0x70, 0x30, 0x30, 0x30, 0x78, 0x00,
+ 0x0c, 0x00, 0x0c, 0x0c, 0x0c, 0xcc, 0xcc, 0x78, 0xe0, 0x60, 0x66, 0x6c, 0x78, 0x6c, 0xe6, 0x00,
+ 0x70, 0x30, 0x30, 0x30, 0x30, 0x30, 0x78, 0x00, 0x00, 0x00, 0xcc, 0xfe, 0xfe, 0xd6, 0xc6, 0x00,
+ 0x00, 0x00, 0xf8, 0xcc, 0xcc, 0xcc, 0xcc, 0x00, 0x00, 0x00, 0x78, 0xcc, 0xcc, 0xcc, 0x78, 0x00,
+ 0x00, 0x00, 0xdc, 0x66, 0x66, 0x7c, 0x60, 0xf0, 0x00, 0x00, 0x76, 0xcc, 0xcc, 0x7c, 0x0c, 0x1e,
+ 0x00, 0x00, 0xdc, 0x76, 0x66, 0x60, 0xf0, 0x00, 0x00, 0x00, 0x7c, 0xc0, 0x78, 0x0c, 0xf8, 0x00,
+ 0x10, 0x30, 0x7c, 0x30, 0x30, 0x34, 0x18, 0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0x76, 0x00,
+ 0x00, 0x00, 0xcc, 0xcc, 0xcc, 0x78, 0x30, 0x00, 0x00, 0x00, 0xc6, 0xd6, 0xfe, 0xfe, 0x6c, 0x00,
+ 0x00, 0x00, 0xc6, 0x6c, 0x38, 0x6c, 0xc6, 0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc, 0x7c, 0x0c, 0xf8,
+ 0x00, 0x00, 0xfc, 0x98, 0x30, 0x64, 0xfc, 0x00, 0x1c, 0x30, 0x30, 0xe0, 0x30, 0x30, 0x1c, 0x00,
+ 0x18, 0x18, 0x18, 0x00, 0x18, 0x18, 0x18, 0x00, 0xe0, 0x30, 0x30, 0x1c, 0x30, 0x30, 0xe0, 0x00,
+ 0x76, 0xdc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x6c, 0xc6, 0xc6, 0xfe, 0x00,
+ 0x78, 0xcc, 0xc0, 0xcc, 0x78, 0x18, 0x0c, 0x78, 0x00, 0xcc, 0x00, 0xcc, 0xcc, 0xcc, 0x7e, 0x00,
+ 0x1c, 0x00, 0x78, 0xcc, 0xfc, 0xc0, 0x78, 0x00, 0x7e, 0xc3, 0x3c, 0x06, 0x3e, 0x66, 0x3f, 0x00,
+ 0xcc, 0x00, 0x78, 0x0c, 0x7c, 0xcc, 0x7e, 0x00, 0xe0, 0x00, 0x78, 0x0c, 0x7c, 0xcc, 0x7e, 0x00,
+ 0x30, 0x30, 0x78, 0x0c, 0x7c, 0xcc, 0x7e, 0x00, 0x00, 0x00, 0x78, 0xc0, 0xc0, 0x78, 0x0c, 0x38,
+ 0x7e, 0xc3, 0x3c, 0x66, 0x7e, 0x60, 0x3c, 0x00, 0xcc, 0x00, 0x78, 0xcc, 0xfc, 0xc0, 0x78, 0x00,
+ 0xe0, 0x00, 0x78, 0xcc, 0xfc, 0xc0, 0x78, 0x00, 0xcc, 0x00, 0x70, 0x30, 0x30, 0x30, 0x78, 0x00,
+ 0x7c, 0xc6, 0x38, 0x18, 0x18, 0x18, 0x3c, 0x00, 0xe0, 0x00, 0x70, 0x30, 0x30, 0x30, 0x78, 0x00,
+ 0xc6, 0x38, 0x6c, 0xc6, 0xfe, 0xc6, 0xc6, 0x00, 0x30, 0x30, 0x00, 0x78, 0xcc, 0xfc, 0xcc, 0x00,
+ 0x1c, 0x00, 0xfc, 0x60, 0x78, 0x60, 0xfc, 0x00, 0x00, 0x00, 0x7f, 0x0c, 0x7f, 0xcc, 0x7f, 0x00,
+ 0x3e, 0x6c, 0xcc, 0xfe, 0xcc, 0xcc, 0xce, 0x00, 0x78, 0xcc, 0x00, 0x78, 0xcc, 0xcc, 0x78, 0x00,
+ 0x00, 0xcc, 0x00, 0x78, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0xe0, 0x00, 0x78, 0xcc, 0xcc, 0x78, 0x00,
+ 0x78, 0xcc, 0x00, 0xcc, 0xcc, 0xcc, 0x7e, 0x00, 0x00, 0xe0, 0x00, 0xcc, 0xcc, 0xcc, 0x7e, 0x00,
+ 0x00, 0xcc, 0x00, 0xcc, 0xcc, 0x7c, 0x0c, 0xf8, 0xc3, 0x18, 0x3c, 0x66, 0x66, 0x3c, 0x18, 0x00,
+ 0xcc, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0x78, 0x00, 0x18, 0x18, 0x7e, 0xc0, 0xc0, 0x7e, 0x18, 0x18,
+ 0x38, 0x6c, 0x64, 0xf0, 0x60, 0xe6, 0xfc, 0x00, 0xcc, 0xcc, 0x78, 0xfc, 0x30, 0xfc, 0x30, 0x30,
+ 0xf8, 0xcc, 0xcc, 0xfa, 0xc6, 0xcf, 0xc6, 0xc7, 0x0e, 0x1b, 0x18, 0x3c, 0x18, 0x18, 0xd8, 0x70,
+ 0x1c, 0x00, 0x78, 0x0c, 0x7c, 0xcc, 0x7e, 0x00, 0x38, 0x00, 0x70, 0x30, 0x30, 0x30, 0x78, 0x00,
+ 0x00, 0x1c, 0x00, 0x78, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0x1c, 0x00, 0xcc, 0xcc, 0xcc, 0x7e, 0x00,
+ 0x00, 0xf8, 0x00, 0xf8, 0xcc, 0xcc, 0xcc, 0x00, 0xfc, 0x00, 0xcc, 0xec, 0xfc, 0xdc, 0xcc, 0x00,
+ 0x3c, 0x6c, 0x6c, 0x3e, 0x00, 0x7e, 0x00, 0x00, 0x38, 0x6c, 0x6c, 0x38, 0x00, 0x7c, 0x00, 0x00,
+ 0x30, 0x00, 0x30, 0x60, 0xc0, 0xcc, 0x78, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xc0, 0xc0, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0xfc, 0x0c, 0x0c, 0x00, 0x00, 0xc3, 0xc6, 0xcc, 0xde, 0x33, 0x66, 0xcc, 0x0f,
+ 0xc3, 0xc6, 0xcc, 0xdb, 0x37, 0x6f, 0xcf, 0x03, 0x18, 0x18, 0x00, 0x18, 0x18, 0x18, 0x18, 0x00,
+ 0x00, 0x33, 0x66, 0xcc, 0x66, 0x33, 0x00, 0x00, 0x00, 0xcc, 0x66, 0x33, 0x66, 0xcc, 0x00, 0x00,
+ 0x22, 0x88, 0x22, 0x88, 0x22, 0x88, 0x22, 0x88, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa,
+ 0xdb, 0x77, 0xdb, 0xee, 0xdb, 0x77, 0xdb, 0xee, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0xf8, 0x18, 0x18, 0x18, 0x18, 0x18, 0xf8, 0x18, 0xf8, 0x18, 0x18, 0x18,
+ 0x36, 0x36, 0x36, 0x36, 0xf6, 0x36, 0x36, 0x36, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x36, 0x36, 0x36,
+ 0x00, 0x00, 0xf8, 0x18, 0xf8, 0x18, 0x18, 0x18, 0x36, 0x36, 0xf6, 0x06, 0xf6, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x00, 0x00, 0xfe, 0x06, 0xf6, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0xf6, 0x06, 0xfe, 0x00, 0x00, 0x00, 0x36, 0x36, 0x36, 0x36, 0xfe, 0x00, 0x00, 0x00,
+ 0x18, 0x18, 0xf8, 0x18, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x1f, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0xff, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x1f, 0x18, 0x18, 0x18,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0xff, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x1f, 0x18, 0x1f, 0x18, 0x18, 0x18, 0x36, 0x36, 0x36, 0x36, 0x37, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x37, 0x30, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x30, 0x37, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0xf7, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0xf7, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x37, 0x30, 0x37, 0x36, 0x36, 0x36, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00,
+ 0x36, 0x36, 0xf7, 0x00, 0xf7, 0x36, 0x36, 0x36, 0x18, 0x18, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00,
+ 0x36, 0x36, 0x36, 0x36, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0xff, 0x18, 0x18, 0x18,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x3f, 0x00, 0x00, 0x00,
+ 0x18, 0x18, 0x1f, 0x18, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x18, 0x1f, 0x18, 0x18, 0x18,
+ 0x00, 0x00, 0x00, 0x00, 0x3f, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0xff, 0x36, 0x36, 0x36,
+ 0x18, 0x18, 0xff, 0x18, 0xff, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xf8, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x1f, 0x18, 0x18, 0x18, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0,
+ 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x76, 0xdc, 0xc8, 0xdc, 0x76, 0x00, 0x00, 0x78, 0xcc, 0xf8, 0xcc, 0xf8, 0xc0, 0xc0,
+ 0x00, 0xfc, 0xcc, 0xc0, 0xc0, 0xc0, 0xc0, 0x00, 0x00, 0xfe, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x00,
+ 0xfc, 0xcc, 0x60, 0x30, 0x60, 0xcc, 0xfc, 0x00, 0x00, 0x00, 0x7e, 0xd8, 0xd8, 0xd8, 0x70, 0x00,
+ 0x00, 0x66, 0x66, 0x66, 0x66, 0x7c, 0x60, 0xc0, 0x00, 0x76, 0xdc, 0x18, 0x18, 0x18, 0x18, 0x00,
+ 0xfc, 0x30, 0x78, 0xcc, 0xcc, 0x78, 0x30, 0xfc, 0x38, 0x6c, 0xc6, 0xfe, 0xc6, 0x6c, 0x38, 0x00,
+ 0x38, 0x6c, 0xc6, 0xc6, 0x6c, 0x6c, 0xee, 0x00, 0x1c, 0x30, 0x18, 0x7c, 0xcc, 0xcc, 0x78, 0x00,
+ 0x00, 0x00, 0x7e, 0xdb, 0xdb, 0x7e, 0x00, 0x00, 0x06, 0x0c, 0x7e, 0xdb, 0xdb, 0x7e, 0x60, 0xc0,
+ 0x38, 0x60, 0xc0, 0xf8, 0xc0, 0x60, 0x38, 0x00, 0x78, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x00,
+ 0x00, 0xfc, 0x00, 0xfc, 0x00, 0xfc, 0x00, 0x00, 0x30, 0x30, 0xfc, 0x30, 0x30, 0x00, 0xfc, 0x00,
+ 0x60, 0x30, 0x18, 0x30, 0x60, 0x00, 0xfc, 0x00, 0x18, 0x30, 0x60, 0x30, 0x18, 0x00, 0xfc, 0x00,
+ 0x0e, 0x1b, 0x1b, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xd8, 0xd8, 0x70,
+ 0x30, 0x30, 0x00, 0xfc, 0x00, 0x30, 0x30, 0x00, 0x00, 0x76, 0xdc, 0x00, 0x76, 0xdc, 0x00, 0x00,
+ 0x38, 0x6c, 0x6c, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x0f, 0x0c, 0x0c, 0x0c, 0xec, 0x6c, 0x3c, 0x1c,
+ 0x78, 0x6c, 0x6c, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x70, 0x18, 0x30, 0x60, 0x78, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x3c, 0x3c, 0x3c, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+
+const uint8_t avpriv_vga16_font[4096] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7e, 0x81, 0xa5, 0x81, 0x81, 0xbd, 0x99, 0x81, 0x81, 0x7e, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7e, 0xff, 0xdb, 0xff, 0xff, 0xc3, 0xe7, 0xff, 0xff, 0x7e, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x6c, 0xfe, 0xfe, 0xfe, 0xfe, 0x7c, 0x38, 0x10, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x7c, 0xfe, 0x7c, 0x38, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x18, 0x3c, 0x3c, 0xe7, 0xe7, 0xe7, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x18, 0x3c, 0x7e, 0xff, 0xff, 0x7e, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x3c, 0x3c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xe7, 0xc3, 0xc3, 0xe7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x66, 0x42, 0x42, 0x66, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xc3, 0x99, 0xbd, 0xbd, 0x99, 0xc3, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x1e, 0x0e, 0x1a, 0x32, 0x78, 0xcc, 0xcc, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x3c, 0x66, 0x66, 0x66, 0x66, 0x3c, 0x18, 0x7e, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x3f, 0x33, 0x3f, 0x30, 0x30, 0x30, 0x30, 0x70, 0xf0, 0xe0, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7f, 0x63, 0x7f, 0x63, 0x63, 0x63, 0x63, 0x67, 0xe7, 0xe6, 0xc0, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x18, 0x18, 0xdb, 0x3c, 0xe7, 0x3c, 0xdb, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfe, 0xf8, 0xf0, 0xe0, 0xc0, 0x80, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x02, 0x06, 0x0e, 0x1e, 0x3e, 0xfe, 0x3e, 0x1e, 0x0e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x18, 0x3c, 0x7e, 0x18, 0x18, 0x18, 0x7e, 0x3c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x00, 0x66, 0x66, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7f, 0xdb, 0xdb, 0xdb, 0x7b, 0x1b, 0x1b, 0x1b, 0x1b, 0x1b, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x7c, 0xc6, 0x60, 0x38, 0x6c, 0xc6, 0xc6, 0x6c, 0x38, 0x0c, 0xc6, 0x7c, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xfe, 0xfe, 0xfe, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x18, 0x3c, 0x7e, 0x18, 0x18, 0x18, 0x7e, 0x3c, 0x18, 0x7e, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x18, 0x3c, 0x7e, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x7e, 0x3c, 0x18, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x0c, 0xfe, 0x0c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x60, 0xfe, 0x60, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xc0, 0xc0, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x24, 0x66, 0xff, 0x66, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x38, 0x7c, 0x7c, 0xfe, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0xfe, 0xfe, 0x7c, 0x7c, 0x38, 0x38, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x18, 0x3c, 0x3c, 0x3c, 0x18, 0x18, 0x18, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x66, 0x66, 0x66, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x6c, 0x6c, 0xfe, 0x6c, 0x6c, 0x6c, 0xfe, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00,
+ 0x18, 0x18, 0x7c, 0xc6, 0xc2, 0xc0, 0x7c, 0x06, 0x06, 0x86, 0xc6, 0x7c, 0x18, 0x18, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0xc2, 0xc6, 0x0c, 0x18, 0x30, 0x60, 0xc6, 0x86, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x38, 0x6c, 0x6c, 0x38, 0x76, 0xdc, 0xcc, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x30, 0x30, 0x30, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x0c, 0x18, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x18, 0x0c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x30, 0x18, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x3c, 0xff, 0x3c, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7e, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x30, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x02, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0x80, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x3c, 0x66, 0xc3, 0xc3, 0xdb, 0xdb, 0xc3, 0xc3, 0x66, 0x3c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x18, 0x38, 0x78, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x7e, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0xc6, 0xfe, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0x06, 0x06, 0x3c, 0x06, 0x06, 0x06, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x0c, 0x1c, 0x3c, 0x6c, 0xcc, 0xfe, 0x0c, 0x0c, 0x0c, 0x1e, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xfe, 0xc0, 0xc0, 0xc0, 0xfc, 0x06, 0x06, 0x06, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x38, 0x60, 0xc0, 0xc0, 0xfc, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xfe, 0xc6, 0x06, 0x06, 0x0c, 0x18, 0x30, 0x30, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0x7e, 0x06, 0x06, 0x06, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x18, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x06, 0x0c, 0x18, 0x30, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x0c, 0x18, 0x30, 0x60, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0x0c, 0x18, 0x18, 0x18, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xde, 0xde, 0xde, 0xdc, 0xc0, 0x7c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x10, 0x38, 0x6c, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xfc, 0x66, 0x66, 0x66, 0x7c, 0x66, 0x66, 0x66, 0x66, 0xfc, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x3c, 0x66, 0xc2, 0xc0, 0xc0, 0xc0, 0xc0, 0xc2, 0x66, 0x3c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xf8, 0x6c, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x6c, 0xf8, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xfe, 0x66, 0x62, 0x68, 0x78, 0x68, 0x60, 0x62, 0x66, 0xfe, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xfe, 0x66, 0x62, 0x68, 0x78, 0x68, 0x60, 0x60, 0x60, 0xf0, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x3c, 0x66, 0xc2, 0xc0, 0xc0, 0xde, 0xc6, 0xc6, 0x66, 0x3a, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x3c, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x1e, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0xcc, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xe6, 0x66, 0x66, 0x6c, 0x78, 0x78, 0x6c, 0x66, 0x66, 0xe6, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xf0, 0x60, 0x60, 0x60, 0x60, 0x60, 0x60, 0x62, 0x66, 0xfe, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xc3, 0xe7, 0xff, 0xff, 0xdb, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xc6, 0xe6, 0xf6, 0xfe, 0xde, 0xce, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xfc, 0x66, 0x66, 0x66, 0x7c, 0x60, 0x60, 0x60, 0x60, 0xf0, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xd6, 0xde, 0x7c, 0x0c, 0x0e, 0x00, 0x00,
+ 0x00, 0x00, 0xfc, 0x66, 0x66, 0x66, 0x7c, 0x6c, 0x66, 0x66, 0x66, 0xe6, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0x60, 0x38, 0x0c, 0x06, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xff, 0xdb, 0x99, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00,
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+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x30, 0x37, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0xf7, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0xf7, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x37, 0x30, 0x37, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0xf7, 0x00, 0xf7, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0xff, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x1f, 0x18, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x18, 0x1f, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0xff, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0xff, 0x18, 0xff, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0,
+ 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x76, 0xdc, 0xd8, 0xd8, 0xd8, 0xdc, 0x76, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x78, 0xcc, 0xcc, 0xcc, 0xd8, 0xcc, 0xc6, 0xc6, 0xc6, 0xcc, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xfe, 0xc6, 0xc6, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0xfe, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0xfe, 0xc6, 0x60, 0x30, 0x18, 0x30, 0x60, 0xc6, 0xfe, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0xd8, 0xd8, 0xd8, 0xd8, 0xd8, 0x70, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x66, 0x7c, 0x60, 0x60, 0xc0, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x76, 0xdc, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x7e, 0x18, 0x3c, 0x66, 0x66, 0x66, 0x3c, 0x18, 0x7e, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x38, 0x6c, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0x6c, 0x38, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x38, 0x6c, 0xc6, 0xc6, 0xc6, 0x6c, 0x6c, 0x6c, 0x6c, 0xee, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x1e, 0x30, 0x18, 0x0c, 0x3e, 0x66, 0x66, 0x66, 0x66, 0x3c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0xdb, 0xdb, 0xdb, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x03, 0x06, 0x7e, 0xdb, 0xdb, 0xf3, 0x7e, 0x60, 0xc0, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x1c, 0x30, 0x60, 0x60, 0x7c, 0x60, 0x60, 0x60, 0x30, 0x1c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0xfe, 0x00, 0x00, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7e, 0x18, 0x18, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x30, 0x18, 0x0c, 0x06, 0x0c, 0x18, 0x30, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x0c, 0x18, 0x30, 0x60, 0x30, 0x18, 0x0c, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x0e, 0x1b, 0x1b, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xd8, 0xd8, 0xd8, 0x70, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x7e, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x76, 0xdc, 0x00, 0x76, 0xdc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x38, 0x6c, 0x6c, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x0f, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0xec, 0x6c, 0x6c, 0x3c, 0x1c, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0xd8, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x70, 0xd8, 0x30, 0x60, 0xc8, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/xga_font_data.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/xga_font_data.h
new file mode 100644
index 000000000..69dc33712
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/xga_font_data.h
@@ -0,0 +1,35 @@
+/*
+ * CGA/EGA/VGA ROM font data
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * CGA/EGA/VGA ROM font data
+ */
+
+#ifndef AVUTIL_XGA_FONT_DATA_H
+#define AVUTIL_XGA_FONT_DATA_H
+
+#include <stdint.h>
+#include "internal.h"
+
+extern av_export_avutil const uint8_t avpriv_cga_font[2048];
+extern av_export_avutil const uint8_t avpriv_vga16_font[4096];
+
+#endif /* AVUTIL_XGA_FONT_DATA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/xtea.c b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/xtea.c
new file mode 100644
index 000000000..f7892af9f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/xtea.c
@@ -0,0 +1,253 @@
+/*
+ * A 32-bit implementation of the XTEA algorithm
+ * Copyright (c) 2012 Samuel Pitoiset
+ *
+ * loosely based on the implementation of David Wheeler and Roger Needham
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @brief XTEA 32-bit implementation
+ * @author Samuel Pitoiset
+ * @ingroup lavu_xtea
+ */
+
+#include "avutil.h"
+#include "common.h"
+#include "intreadwrite.h"
+#include "mem.h"
+#include "xtea.h"
+
+AVXTEA *av_xtea_alloc(void)
+{
+    return av_mallocz(sizeof(struct AVXTEA));
+}
+
+void av_xtea_init(AVXTEA *ctx, const uint8_t key[16])
+{
+    int i;
+
+    for (i = 0; i < 4; i++)
+        ctx->key[i] = AV_RB32(key + (i << 2));
+}
+
+void av_xtea_le_init(AVXTEA *ctx, const uint8_t key[16])
+{
+    int i;
+
+    for (i = 0; i < 4; i++)
+        ctx->key[i] = AV_RL32(key + (i << 2));
+}
+
+static void xtea_crypt_ecb(AVXTEA *ctx, uint8_t *dst, const uint8_t *src,
+                           int decrypt, uint8_t *iv)
+{
+    uint32_t v0, v1;
+#if !CONFIG_SMALL
+    uint32_t k0 = ctx->key[0];
+    uint32_t k1 = ctx->key[1];
+    uint32_t k2 = ctx->key[2];
+    uint32_t k3 = ctx->key[3];
+#endif
+
+    v0 = AV_RB32(src);
+    v1 = AV_RB32(src + 4);
+
+    if (decrypt) {
+#if CONFIG_SMALL
+        int i;
+        uint32_t delta = 0x9E3779B9U, sum = delta * 32;
+
+        for (i = 0; i < 32; i++) {
+            v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + ctx->key[(sum >> 11) & 3]);
+            sum -= delta;
+            v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + ctx->key[sum & 3]);
+        }
+#else
+#define DSTEP(SUM, K0, K1) \
+            v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (SUM + K0); \
+            v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (SUM - 0x9E3779B9U + K1)
+
+        DSTEP(0xC6EF3720U, k2, k3);
+        DSTEP(0x28B7BD67U, k3, k2);
+        DSTEP(0x8A8043AEU, k0, k1);
+        DSTEP(0xEC48C9F5U, k1, k0);
+        DSTEP(0x4E11503CU, k2, k3);
+        DSTEP(0xAFD9D683U, k2, k2);
+        DSTEP(0x11A25CCAU, k3, k1);
+        DSTEP(0x736AE311U, k0, k0);
+        DSTEP(0xD5336958U, k1, k3);
+        DSTEP(0x36FBEF9FU, k1, k2);
+        DSTEP(0x98C475E6U, k2, k1);
+        DSTEP(0xFA8CFC2DU, k3, k0);
+        DSTEP(0x5C558274U, k0, k3);
+        DSTEP(0xBE1E08BBU, k1, k2);
+        DSTEP(0x1FE68F02U, k1, k1);
+        DSTEP(0x81AF1549U, k2, k0);
+        DSTEP(0xE3779B90U, k3, k3);
+        DSTEP(0x454021D7U, k0, k2);
+        DSTEP(0xA708A81EU, k1, k1);
+        DSTEP(0x08D12E65U, k1, k0);
+        DSTEP(0x6A99B4ACU, k2, k3);
+        DSTEP(0xCC623AF3U, k3, k2);
+        DSTEP(0x2E2AC13AU, k0, k1);
+        DSTEP(0x8FF34781U, k0, k0);
+        DSTEP(0xF1BBCDC8U, k1, k3);
+        DSTEP(0x5384540FU, k2, k2);
+        DSTEP(0xB54CDA56U, k3, k1);
+        DSTEP(0x1715609DU, k0, k0);
+        DSTEP(0x78DDE6E4U, k0, k3);
+        DSTEP(0xDAA66D2BU, k1, k2);
+        DSTEP(0x3C6EF372U, k2, k1);
+        DSTEP(0x9E3779B9U, k3, k0);
+#endif
+        if (iv) {
+            v0 ^= AV_RB32(iv);
+            v1 ^= AV_RB32(iv + 4);
+            memcpy(iv, src, 8);
+        }
+    } else {
+#if CONFIG_SMALL
+        int i;
+        uint32_t sum = 0, delta = 0x9E3779B9U;
+
+        for (i = 0; i < 32; i++) {
+            v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + ctx->key[sum & 3]);
+            sum += delta;
+            v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + ctx->key[(sum >> 11) & 3]);
+        }
+#else
+#define ESTEP(SUM, K0, K1) \
+            v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (SUM + K0);\
+            v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (SUM + 0x9E3779B9U + K1)
+        ESTEP(0x00000000U, k0, k3);
+        ESTEP(0x9E3779B9U, k1, k2);
+        ESTEP(0x3C6EF372U, k2, k1);
+        ESTEP(0xDAA66D2BU, k3, k0);
+        ESTEP(0x78DDE6E4U, k0, k0);
+        ESTEP(0x1715609DU, k1, k3);
+        ESTEP(0xB54CDA56U, k2, k2);
+        ESTEP(0x5384540FU, k3, k1);
+        ESTEP(0xF1BBCDC8U, k0, k0);
+        ESTEP(0x8FF34781U, k1, k0);
+        ESTEP(0x2E2AC13AU, k2, k3);
+        ESTEP(0xCC623AF3U, k3, k2);
+        ESTEP(0x6A99B4ACU, k0, k1);
+        ESTEP(0x08D12E65U, k1, k1);
+        ESTEP(0xA708A81EU, k2, k0);
+        ESTEP(0x454021D7U, k3, k3);
+        ESTEP(0xE3779B90U, k0, k2);
+        ESTEP(0x81AF1549U, k1, k1);
+        ESTEP(0x1FE68F02U, k2, k1);
+        ESTEP(0xBE1E08BBU, k3, k0);
+        ESTEP(0x5C558274U, k0, k3);
+        ESTEP(0xFA8CFC2DU, k1, k2);
+        ESTEP(0x98C475E6U, k2, k1);
+        ESTEP(0x36FBEF9FU, k3, k1);
+        ESTEP(0xD5336958U, k0, k0);
+        ESTEP(0x736AE311U, k1, k3);
+        ESTEP(0x11A25CCAU, k2, k2);
+        ESTEP(0xAFD9D683U, k3, k2);
+        ESTEP(0x4E11503CU, k0, k1);
+        ESTEP(0xEC48C9F5U, k1, k0);
+        ESTEP(0x8A8043AEU, k2, k3);
+        ESTEP(0x28B7BD67U, k3, k2);
+#endif
+    }
+
+    AV_WB32(dst, v0);
+    AV_WB32(dst + 4, v1);
+}
+
+static void xtea_le_crypt_ecb(AVXTEA *ctx, uint8_t *dst, const uint8_t *src,
+                              int decrypt, uint8_t *iv)
+{
+    uint32_t v0, v1;
+    int i;
+
+    v0 = AV_RL32(src);
+    v1 = AV_RL32(src + 4);
+
+    if (decrypt) {
+        uint32_t delta = 0x9E3779B9, sum = delta * 32;
+
+        for (i = 0; i < 32; i++) {
+            v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + ctx->key[(sum >> 11) & 3]);
+            sum -= delta;
+            v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + ctx->key[sum & 3]);
+        }
+        if (iv) {
+            v0 ^= AV_RL32(iv);
+            v1 ^= AV_RL32(iv + 4);
+            memcpy(iv, src, 8);
+        }
+    } else {
+        uint32_t sum = 0, delta = 0x9E3779B9;
+
+        for (i = 0; i < 32; i++) {
+            v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + ctx->key[sum & 3]);
+            sum += delta;
+            v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + ctx->key[(sum >> 11) & 3]);
+        }
+    }
+
+    AV_WL32(dst, v0);
+    AV_WL32(dst + 4, v1);
+}
+
+static void xtea_crypt(AVXTEA *ctx, uint8_t *dst, const uint8_t *src, int count,
+                       uint8_t *iv, int decrypt,
+                       void (*crypt)(AVXTEA *, uint8_t *, const uint8_t *, int, uint8_t *))
+{
+    int i;
+
+    if (decrypt) {
+        while (count--) {
+            crypt(ctx, dst, src, decrypt, iv);
+
+            src   += 8;
+            dst   += 8;
+        }
+    } else {
+        while (count--) {
+            if (iv) {
+                for (i = 0; i < 8; i++)
+                    dst[i] = src[i] ^ iv[i];
+                crypt(ctx, dst, dst, decrypt, NULL);
+                memcpy(iv, dst, 8);
+            } else {
+                crypt(ctx, dst, src, decrypt, NULL);
+            }
+            src   += 8;
+            dst   += 8;
+        }
+    }
+}
+
+void av_xtea_crypt(AVXTEA *ctx, uint8_t *dst, const uint8_t *src, int count,
+                   uint8_t *iv, int decrypt)
+{
+    xtea_crypt(ctx, dst, src, count, iv, decrypt, xtea_crypt_ecb);
+}
+
+void av_xtea_le_crypt(AVXTEA *ctx, uint8_t *dst, const uint8_t *src, int count,
+                      uint8_t *iv, int decrypt)
+{
+    xtea_crypt(ctx, dst, src, count, iv, decrypt, xtea_le_crypt_ecb);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/xtea.h b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/xtea.h
new file mode 100644
index 000000000..735427c10
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libavutil/xtea.h
@@ -0,0 +1,94 @@
+/*
+ * A 32-bit implementation of the XTEA algorithm
+ * Copyright (c) 2012 Samuel Pitoiset
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_XTEA_H
+#define AVUTIL_XTEA_H
+
+#include <stdint.h>
+
+/**
+ * @file
+ * @brief Public header for libavutil XTEA algorithm
+ * @defgroup lavu_xtea XTEA
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+typedef struct AVXTEA {
+    uint32_t key[16];
+} AVXTEA;
+
+/**
+ * Allocate an AVXTEA context.
+ */
+AVXTEA *av_xtea_alloc(void);
+
+/**
+ * Initialize an AVXTEA context.
+ *
+ * @param ctx an AVXTEA context
+ * @param key a key of 16 bytes used for encryption/decryption,
+ *            interpreted as big endian 32 bit numbers
+ */
+void av_xtea_init(struct AVXTEA *ctx, const uint8_t key[16]);
+
+/**
+ * Initialize an AVXTEA context.
+ *
+ * @param ctx an AVXTEA context
+ * @param key a key of 16 bytes used for encryption/decryption,
+ *            interpreted as little endian 32 bit numbers
+ */
+void av_xtea_le_init(struct AVXTEA *ctx, const uint8_t key[16]);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context,
+ * in big endian format.
+ *
+ * @param ctx an AVXTEA context
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst
+ * @param count number of 8 byte blocks
+ * @param iv initialization vector for CBC mode, if NULL then ECB will be used
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_xtea_crypt(struct AVXTEA *ctx, uint8_t *dst, const uint8_t *src,
+                   int count, uint8_t *iv, int decrypt);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context,
+ * in little endian format.
+ *
+ * @param ctx an AVXTEA context
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst
+ * @param count number of 8 byte blocks
+ * @param iv initialization vector for CBC mode, if NULL then ECB will be used
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_xtea_le_crypt(struct AVXTEA *ctx, uint8_t *dst, const uint8_t *src,
+                      int count, uint8_t *iv, int decrypt);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_XTEA_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/Makefile b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/Makefile
new file mode 100644
index 000000000..42666e4dd
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/Makefile
@@ -0,0 +1,23 @@
+NAME = swresample
+DESC = FFmpeg audio resampling library
+FFLIBS = avutil
+
+HEADERS = swresample.h                       \
+          version.h                          \
+
+OBJS = audioconvert.o                        \
+       dither.o                              \
+       options.o                             \
+       rematrix.o                            \
+       resample.o                            \
+       resample_dsp.o                        \
+       swresample.o                          \
+       swresample_frame.o                    \
+
+OBJS-$(CONFIG_LIBSOXR) += soxr_resample.o
+OBJS-$(CONFIG_SHARED)  += log2_tab.o
+
+# Windows resource file
+SLIBOBJS-$(HAVE_GNU_WINDRES) += swresampleres.o
+
+TESTPROGS = swresample
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/aarch64/Makefile b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/aarch64/Makefile
new file mode 100644
index 000000000..5c34f8d94
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/aarch64/Makefile
@@ -0,0 +1,7 @@
+OBJS                             += aarch64/audio_convert_init.o \
+                                    aarch64/resample_init.o
+
+OBJS-$(CONFIG_NEON_CLOBBER_TEST) += aarch64/neontest.o
+
+NEON-OBJS                        += aarch64/audio_convert_neon.o \
+                                    aarch64/resample.o
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/aarch64/audio_convert_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/aarch64/audio_convert_init.c
new file mode 100644
index 000000000..60e24adb1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/aarch64/audio_convert_init.c
@@ -0,0 +1,67 @@
+/*
+ * This file is part of libswresample.
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavutil/samplefmt.h"
+#include "libswresample/swresample_internal.h"
+#include "libswresample/audioconvert.h"
+
+void swri_oldapi_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len);
+void swri_oldapi_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src, int len, int channels);
+void swri_oldapi_conv_fltp_to_s16_nch_neon(int16_t *dst, float *const *src, int len, int channels);
+
+static void conv_flt_to_s16_neon(uint8_t **dst, const uint8_t **src, int len){
+    swri_oldapi_conv_flt_to_s16_neon((int16_t*)*dst, (const float*)*src, len);
+}
+
+static void conv_fltp_to_s16_2ch_neon(uint8_t **dst, const uint8_t **src, int len){
+    swri_oldapi_conv_fltp_to_s16_2ch_neon((int16_t*)*dst, (float *const*)src, len, 2);
+}
+
+static void conv_fltp_to_s16_nch_neon(uint8_t **dst, const uint8_t **src, int len){
+    int channels;
+    for(channels=3; channels<SWR_CH_MAX && src[channels]; channels++)
+        ;
+    swri_oldapi_conv_fltp_to_s16_nch_neon((int16_t*)*dst, (float *const*)src, len, channels);
+}
+
+av_cold void swri_audio_convert_init_aarch64(struct AudioConvert *ac,
+                                       enum AVSampleFormat out_fmt,
+                                       enum AVSampleFormat in_fmt,
+                                       int channels)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    ac->simd_f= NULL;
+
+    if (have_neon(cpu_flags)) {
+        if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLT || out_fmt == AV_SAMPLE_FMT_S16P && in_fmt == AV_SAMPLE_FMT_FLTP)
+            ac->simd_f = conv_flt_to_s16_neon;
+        if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLTP && channels == 2)
+            ac->simd_f = conv_fltp_to_s16_2ch_neon;
+        if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLTP && channels >  2)
+            ac->simd_f = conv_fltp_to_s16_nch_neon;
+        if(ac->simd_f)
+            ac->in_simd_align_mask = ac->out_simd_align_mask = 15;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/aarch64/resample_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/aarch64/resample_init.c
new file mode 100644
index 000000000..d01ec1875
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/aarch64/resample_init.c
@@ -0,0 +1,120 @@
+/*
+ * Audio resampling
+ *
+ * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/cpu.h"
+#include "libavutil/avassert.h"
+
+#include "libavutil/aarch64/cpu.h"
+#include "libswresample/resample.h"
+
+#define DECLARE_RESAMPLE_COMMON_TEMPLATE(TYPE, DELEM, FELEM, FELEM2, OUT)                         \
+                                                                                                  \
+void ff_resample_common_apply_filter_x4_##TYPE##_neon(FELEM2 *acc, const DELEM *src,              \
+                                                      const FELEM *filter, int length);           \
+                                                                                                  \
+void ff_resample_common_apply_filter_x8_##TYPE##_neon(FELEM2 *acc, const DELEM *src,              \
+                                                      const FELEM *filter, int length);           \
+                                                                                                  \
+static int ff_resample_common_##TYPE##_neon(ResampleContext *c, void *dest, const void *source,   \
+                                            int n, int update_ctx)                                \
+{                                                                                                 \
+    DELEM *dst = dest;                                                                            \
+    const DELEM *src = source;                                                                    \
+    int dst_index;                                                                                \
+    int index = c->index;                                                                         \
+    int frac = c->frac;                                                                           \
+    int sample_index = 0;                                                                         \
+    int x4_aligned_filter_length = c->filter_length & ~3;                                         \
+    int x8_aligned_filter_length = c->filter_length & ~7;                                         \
+                                                                                                  \
+    while (index >= c->phase_count) {                                                             \
+        sample_index++;                                                                           \
+        index -= c->phase_count;                                                                  \
+    }                                                                                             \
+                                                                                                  \
+    for (dst_index = 0; dst_index < n; dst_index++) {                                             \
+        FELEM *filter = ((FELEM *) c->filter_bank) + c->filter_alloc * index;                     \
+                                                                                                  \
+        FELEM2 val = 0;                                                                             \
+        int i = 0;                                                                                \
+        if (x8_aligned_filter_length >= 8) {                                                      \
+            ff_resample_common_apply_filter_x8_##TYPE##_neon(&val, &src[sample_index],            \
+                                                             filter, x8_aligned_filter_length);   \
+            i += x8_aligned_filter_length;                                                        \
+                                                                                                  \
+        } else if (x4_aligned_filter_length >= 4) {                                               \
+            ff_resample_common_apply_filter_x4_##TYPE##_neon(&val, &src[sample_index],            \
+                                                             filter, x4_aligned_filter_length);   \
+            i += x4_aligned_filter_length;                                                        \
+        }                                                                                         \
+        for (; i < c->filter_length; i++) {                                                       \
+            val += src[sample_index + i] * (FELEM2)filter[i];                                     \
+        }                                                                                         \
+        OUT(dst[dst_index], val);                                                                 \
+                                                                                                  \
+        frac  += c->dst_incr_mod;                                                                 \
+        index += c->dst_incr_div;                                                                 \
+        if (frac >= c->src_incr) {                                                                \
+            frac -= c->src_incr;                                                                  \
+            index++;                                                                              \
+        }                                                                                         \
+                                                                                                  \
+        while (index >= c->phase_count) {                                                         \
+            sample_index++;                                                                       \
+            index -= c->phase_count;                                                              \
+        }                                                                                         \
+    }                                                                                             \
+                                                                                                  \
+    if (update_ctx) {                                                                             \
+        c->frac = frac;                                                                           \
+        c->index = index;                                                                         \
+    }                                                                                             \
+                                                                                                  \
+    return sample_index;                                                                          \
+}                                                                                                 \
+
+#define OUT(d, v) d = v
+DECLARE_RESAMPLE_COMMON_TEMPLATE(float, float, float, float, OUT)
+#undef OUT
+
+#define OUT(d, v) (v) = ((v) + (1<<(14)))>>15; (d) = av_clip_int16(v)
+DECLARE_RESAMPLE_COMMON_TEMPLATE(s16, int16_t, int16_t, int32_t, OUT)
+#undef OUT
+
+av_cold void swri_resample_dsp_aarch64_init(ResampleContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (!have_neon(cpu_flags))
+        return;
+
+    switch(c->format) {
+    case AV_SAMPLE_FMT_FLTP:
+        c->dsp.resample_common = ff_resample_common_float_neon;
+        break;
+    case AV_SAMPLE_FMT_S16P:
+        c->dsp.resample_common = ff_resample_common_s16_neon;
+        break;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/arm/Makefile b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/arm/Makefile
new file mode 100644
index 000000000..53ab4626f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/arm/Makefile
@@ -0,0 +1,8 @@
+OBJS      += arm/audio_convert_init.o \
+             arm/resample_init.o
+
+
+OBJS-$(CONFIG_NEON_CLOBBER_TEST) += arm/neontest.o
+
+NEON-OBJS += arm/audio_convert_neon.o \
+             arm/resample.o
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/arm/audio_convert_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/arm/audio_convert_init.c
new file mode 100644
index 000000000..ec9e62ede
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/arm/audio_convert_init.c
@@ -0,0 +1,67 @@
+/*
+ * This file is part of libswresample.
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/arm/cpu.h"
+#include "libavutil/samplefmt.h"
+#include "libswresample/swresample_internal.h"
+#include "libswresample/audioconvert.h"
+
+void swri_oldapi_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len);
+void swri_oldapi_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src, int len, int channels);
+void swri_oldapi_conv_fltp_to_s16_nch_neon(int16_t *dst, float *const *src, int len, int channels);
+
+static void conv_flt_to_s16_neon(uint8_t **dst, const uint8_t **src, int len){
+    swri_oldapi_conv_flt_to_s16_neon((int16_t*)*dst, (const float*)*src, len);
+}
+
+static void conv_fltp_to_s16_2ch_neon(uint8_t **dst, const uint8_t **src, int len){
+    swri_oldapi_conv_fltp_to_s16_2ch_neon((int16_t*)*dst, (float *const*)src, len, 2);
+}
+
+static void conv_fltp_to_s16_nch_neon(uint8_t **dst, const uint8_t **src, int len){
+    int channels;
+    for(channels=3; channels<SWR_CH_MAX && src[channels]; channels++)
+        ;
+    swri_oldapi_conv_fltp_to_s16_nch_neon((int16_t*)*dst, (float *const*)src, len, channels);
+}
+
+av_cold void swri_audio_convert_init_arm(struct AudioConvert *ac,
+                                       enum AVSampleFormat out_fmt,
+                                       enum AVSampleFormat in_fmt,
+                                       int channels)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    ac->simd_f= NULL;
+
+    if (have_neon(cpu_flags)) {
+        if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLT || out_fmt == AV_SAMPLE_FMT_S16P && in_fmt == AV_SAMPLE_FMT_FLTP)
+            ac->simd_f = conv_flt_to_s16_neon;
+        if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLTP && channels == 2)
+            ac->simd_f = conv_fltp_to_s16_2ch_neon;
+        if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLTP && channels >  2)
+            ac->simd_f = conv_fltp_to_s16_nch_neon;
+        if(ac->simd_f)
+            ac->in_simd_align_mask = ac->out_simd_align_mask = 15;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/arm/resample_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/arm/resample_init.c
new file mode 100644
index 000000000..09b9766ff
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/arm/resample_init.c
@@ -0,0 +1,120 @@
+/*
+ * Audio resampling
+ *
+ * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/cpu.h"
+#include "libavutil/avassert.h"
+
+#include "libavutil/arm/cpu.h"
+#include "libswresample/resample.h"
+
+#define DECLARE_RESAMPLE_COMMON_TEMPLATE(TYPE, DELEM, FELEM, FELEM2, OUT)                         \
+                                                                                                  \
+void ff_resample_common_apply_filter_x4_##TYPE##_neon(FELEM2 *acc, const DELEM *src,              \
+                                                      const FELEM *filter, int length);           \
+                                                                                                  \
+void ff_resample_common_apply_filter_x8_##TYPE##_neon(FELEM2 *acc, const DELEM *src,              \
+                                                      const FELEM *filter, int length);           \
+                                                                                                  \
+static int ff_resample_common_##TYPE##_neon(ResampleContext *c, void *dest, const void *source,   \
+                                            int n, int update_ctx)                                \
+{                                                                                                 \
+    DELEM *dst = dest;                                                                            \
+    const DELEM *src = source;                                                                    \
+    int dst_index;                                                                                \
+    int index = c->index;                                                                         \
+    int frac = c->frac;                                                                           \
+    int sample_index = 0;                                                                         \
+    int x4_aligned_filter_length = c->filter_length & ~3;                                         \
+    int x8_aligned_filter_length = c->filter_length & ~7;                                         \
+                                                                                                  \
+    while (index >= c->phase_count) {                                                             \
+        sample_index++;                                                                           \
+        index -= c->phase_count;                                                                  \
+    }                                                                                             \
+                                                                                                  \
+    for (dst_index = 0; dst_index < n; dst_index++) {                                             \
+        FELEM *filter = ((FELEM *) c->filter_bank) + c->filter_alloc * index;                     \
+                                                                                                  \
+        FELEM2 val = 0;                                                                             \
+        int i = 0;                                                                                \
+        if (x8_aligned_filter_length >= 8) {                                                      \
+            ff_resample_common_apply_filter_x8_##TYPE##_neon(&val, &src[sample_index],            \
+                                                             filter, x8_aligned_filter_length);   \
+            i += x8_aligned_filter_length;                                                        \
+                                                                                                  \
+        } else if (x4_aligned_filter_length >= 4) {                                               \
+            ff_resample_common_apply_filter_x4_##TYPE##_neon(&val, &src[sample_index],            \
+                                                             filter, x4_aligned_filter_length);   \
+            i += x4_aligned_filter_length;                                                        \
+        }                                                                                         \
+        for (; i < c->filter_length; i++) {                                                       \
+            val += src[sample_index + i] * (FELEM2)filter[i];                                     \
+        }                                                                                         \
+        OUT(dst[dst_index], val);                                                                 \
+                                                                                                  \
+        frac  += c->dst_incr_mod;                                                                 \
+        index += c->dst_incr_div;                                                                 \
+        if (frac >= c->src_incr) {                                                                \
+            frac -= c->src_incr;                                                                  \
+            index++;                                                                              \
+        }                                                                                         \
+                                                                                                  \
+        while (index >= c->phase_count) {                                                         \
+            sample_index++;                                                                       \
+            index -= c->phase_count;                                                              \
+        }                                                                                         \
+    }                                                                                             \
+                                                                                                  \
+    if (update_ctx) {                                                                             \
+        c->frac = frac;                                                                           \
+        c->index = index;                                                                         \
+    }                                                                                             \
+                                                                                                  \
+    return sample_index;                                                                          \
+}                                                                                                 \
+
+#define OUT(d, v) d = v
+DECLARE_RESAMPLE_COMMON_TEMPLATE(float, float, float, float, OUT)
+#undef OUT
+
+#define OUT(d, v) (v) = ((v) + (1<<(14)))>>15; (d) = av_clip_int16(v)
+DECLARE_RESAMPLE_COMMON_TEMPLATE(s16, int16_t, int16_t, int32_t, OUT)
+#undef OUT
+
+av_cold void swri_resample_dsp_arm_init(ResampleContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (!have_neon(cpu_flags))
+        return;
+
+    switch(c->format) {
+    case AV_SAMPLE_FMT_FLTP:
+        c->dsp.resample_common = ff_resample_common_float_neon;
+        break;
+    case AV_SAMPLE_FMT_S16P:
+        c->dsp.resample_common = ff_resample_common_s16_neon;
+        break;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/audioconvert.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/audioconvert.c
new file mode 100644
index 000000000..96ce84ac4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/audioconvert.c
@@ -0,0 +1,247 @@
+/*
+ * audio conversion
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * audio conversion
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "libavutil/avstring.h"
+#include "libavutil/avassert.h"
+#include "libavutil/libm.h"
+#include "libavutil/samplefmt.h"
+#include "audioconvert.h"
+
+
+#define CONV_FUNC_NAME(dst_fmt, src_fmt) conv_ ## src_fmt ## _to_ ## dst_fmt
+
+//FIXME rounding ?
+#define CONV_FUNC(ofmt, otype, ifmt, expr)\
+static void CONV_FUNC_NAME(ofmt, ifmt)(uint8_t *po, const uint8_t *pi, int is, int os, uint8_t *end)\
+{\
+    uint8_t *end2 = end - 3*os;\
+    while(po < end2){\
+        *(otype*)po = expr; pi += is; po += os;\
+        *(otype*)po = expr; pi += is; po += os;\
+        *(otype*)po = expr; pi += is; po += os;\
+        *(otype*)po = expr; pi += is; po += os;\
+    }\
+    while(po < end){\
+        *(otype*)po = expr; pi += is; po += os;\
+    }\
+}
+
+//FIXME put things below under ifdefs so we do not waste space for cases no codec will need
+CONV_FUNC(AV_SAMPLE_FMT_U8 , uint8_t, AV_SAMPLE_FMT_U8 ,  *(const uint8_t*)pi)
+CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_U8 , (*(const uint8_t*)pi - 0x80U)<<8)
+CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_U8 , (*(const uint8_t*)pi - 0x80U)<<24)
+CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8 , (uint64_t)((*(const uint8_t*)pi - 0x80U))<<56)
+CONV_FUNC(AV_SAMPLE_FMT_FLT, float  , AV_SAMPLE_FMT_U8 , (*(const uint8_t*)pi - 0x80)*(1.0f/ (1<<7)))
+CONV_FUNC(AV_SAMPLE_FMT_DBL, double , AV_SAMPLE_FMT_U8 , (*(const uint8_t*)pi - 0x80)*(1.0 / (1<<7)))
+CONV_FUNC(AV_SAMPLE_FMT_U8 , uint8_t, AV_SAMPLE_FMT_S16, (*(const int16_t*)pi>>8) + 0x80)
+CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_S16,  *(const int16_t*)pi)
+CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S16,  *(const int16_t*)pi<<16)
+CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16, (uint64_t)(*(const int16_t*)pi)<<48)
+CONV_FUNC(AV_SAMPLE_FMT_FLT, float  , AV_SAMPLE_FMT_S16,  *(const int16_t*)pi*(1.0f/ (1<<15)))
+CONV_FUNC(AV_SAMPLE_FMT_DBL, double , AV_SAMPLE_FMT_S16,  *(const int16_t*)pi*(1.0 / (1<<15)))
+CONV_FUNC(AV_SAMPLE_FMT_U8 , uint8_t, AV_SAMPLE_FMT_S32, (*(const int32_t*)pi>>24) + 0x80)
+CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_S32,  *(const int32_t*)pi>>16)
+CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S32,  *(const int32_t*)pi)
+CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32, (uint64_t)(*(const int32_t*)pi)<<32)
+CONV_FUNC(AV_SAMPLE_FMT_FLT, float  , AV_SAMPLE_FMT_S32,  *(const int32_t*)pi*(1.0f/ (1U<<31)))
+CONV_FUNC(AV_SAMPLE_FMT_DBL, double , AV_SAMPLE_FMT_S32,  *(const int32_t*)pi*(1.0 / (1U<<31)))
+CONV_FUNC(AV_SAMPLE_FMT_U8 , uint8_t, AV_SAMPLE_FMT_S64, (*(const int64_t*)pi>>56) + 0x80)
+CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_S64,  *(const int64_t*)pi>>48)
+CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S64,  *(const int64_t*)pi>>32)
+CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S64,  *(const int64_t*)pi)
+CONV_FUNC(AV_SAMPLE_FMT_FLT, float  , AV_SAMPLE_FMT_S64,  *(const int64_t*)pi*(1.0f/ (INT64_C(1)<<63)))
+CONV_FUNC(AV_SAMPLE_FMT_DBL, double , AV_SAMPLE_FMT_S64,  *(const int64_t*)pi*(1.0 / (INT64_C(1)<<63)))
+CONV_FUNC(AV_SAMPLE_FMT_U8 , uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(  lrintf(*(const float*)pi * (1<<7)) + 0x80))
+CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(  lrintf(*(const float*)pi * (1<<15))))
+CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float*)pi * (1U<<31))))
+CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float*)pi * (INT64_C(1)<<63)))
+CONV_FUNC(AV_SAMPLE_FMT_FLT, float  , AV_SAMPLE_FMT_FLT, *(const float*)pi)
+CONV_FUNC(AV_SAMPLE_FMT_DBL, double , AV_SAMPLE_FMT_FLT, *(const float*)pi)
+CONV_FUNC(AV_SAMPLE_FMT_U8 , uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(  lrint(*(const double*)pi * (1<<7)) + 0x80))
+CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(  lrint(*(const double*)pi * (1<<15))))
+CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double*)pi * (1U<<31))))
+CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double*)pi * (INT64_C(1)<<63)))
+CONV_FUNC(AV_SAMPLE_FMT_FLT, float  , AV_SAMPLE_FMT_DBL, *(const double*)pi)
+CONV_FUNC(AV_SAMPLE_FMT_DBL, double , AV_SAMPLE_FMT_DBL, *(const double*)pi)
+
+#define FMT_PAIR_FUNC(out, in) [(out) + AV_SAMPLE_FMT_NB*(in)] = CONV_FUNC_NAME(out, in)
+
+static conv_func_type * const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB*AV_SAMPLE_FMT_NB] = {
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8 , AV_SAMPLE_FMT_U8 ),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8 ),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8 ),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8 ),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8 ),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8 ),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8 , AV_SAMPLE_FMT_S16),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8 , AV_SAMPLE_FMT_S32),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8 , AV_SAMPLE_FMT_FLT),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8 , AV_SAMPLE_FMT_DBL),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8 , AV_SAMPLE_FMT_S64),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64),
+    FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),
+};
+
+static void cpy1(uint8_t **dst, const uint8_t **src, int len){
+    memcpy(*dst, *src, len);
+}
+static void cpy2(uint8_t **dst, const uint8_t **src, int len){
+    memcpy(*dst, *src, 2*len);
+}
+static void cpy4(uint8_t **dst, const uint8_t **src, int len){
+    memcpy(*dst, *src, 4*len);
+}
+static void cpy8(uint8_t **dst, const uint8_t **src, int len){
+    memcpy(*dst, *src, 8*len);
+}
+
+AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt,
+                                       enum AVSampleFormat in_fmt,
+                                       int channels, const int *ch_map,
+                                       int flags)
+{
+    AudioConvert *ctx;
+    conv_func_type *f = fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt) + AV_SAMPLE_FMT_NB*av_get_packed_sample_fmt(in_fmt)];
+
+    if (!f)
+        return NULL;
+    ctx = av_mallocz(sizeof(*ctx));
+    if (!ctx)
+        return NULL;
+
+    if(channels == 1){
+         in_fmt = av_get_planar_sample_fmt( in_fmt);
+        out_fmt = av_get_planar_sample_fmt(out_fmt);
+    }
+
+    ctx->channels = channels;
+    ctx->conv_f   = f;
+    ctx->ch_map   = ch_map;
+    if (in_fmt == AV_SAMPLE_FMT_U8 || in_fmt == AV_SAMPLE_FMT_U8P)
+        memset(ctx->silence, 0x80, sizeof(ctx->silence));
+
+    if(out_fmt == in_fmt && !ch_map) {
+        switch(av_get_bytes_per_sample(in_fmt)){
+            case 1:ctx->simd_f = cpy1; break;
+            case 2:ctx->simd_f = cpy2; break;
+            case 4:ctx->simd_f = cpy4; break;
+            case 8:ctx->simd_f = cpy8; break;
+        }
+    }
+
+    if(HAVE_X86ASM && HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);
+    if(ARCH_ARM)              swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);
+    if(ARCH_AARCH64)          swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);
+
+    return ctx;
+}
+
+void swri_audio_convert_free(AudioConvert **ctx)
+{
+    av_freep(ctx);
+}
+
+int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len)
+{
+    int ch;
+    int off=0;
+    const int os= (out->planar ? 1 :out->ch_count) *out->bps;
+    unsigned misaligned = 0;
+
+    av_assert0(ctx->channels == out->ch_count);
+
+    if (ctx->in_simd_align_mask) {
+        int planes = in->planar ? in->ch_count : 1;
+        unsigned m = 0;
+        for (ch = 0; ch < planes; ch++)
+            m |= (intptr_t)in->ch[ch];
+        misaligned |= m & ctx->in_simd_align_mask;
+    }
+    if (ctx->out_simd_align_mask) {
+        int planes = out->planar ? out->ch_count : 1;
+        unsigned m = 0;
+        for (ch = 0; ch < planes; ch++)
+            m |= (intptr_t)out->ch[ch];
+        misaligned |= m & ctx->out_simd_align_mask;
+    }
+
+    //FIXME optimize common cases
+
+    if(ctx->simd_f && !ctx->ch_map && !misaligned){
+        off = len&~15;
+        av_assert1(off>=0);
+        av_assert1(off<=len);
+        av_assert2(ctx->channels == SWR_CH_MAX || !in->ch[ctx->channels]);
+        if(off>0){
+            if(out->planar == in->planar){
+                int planes = out->planar ? out->ch_count : 1;
+                for(ch=0; ch<planes; ch++){
+                    ctx->simd_f(out->ch+ch, (const uint8_t **)in->ch+ch, off * (out->planar ? 1 :out->ch_count));
+                }
+            }else{
+                ctx->simd_f(out->ch, (const uint8_t **)in->ch, off);
+            }
+        }
+        if(off == len)
+            return 0;
+    }
+
+    for(ch=0; ch<ctx->channels; ch++){
+        const int ich= ctx->ch_map ? ctx->ch_map[ch] : ch;
+        const int is= ich < 0 ? 0 : (in->planar ? 1 : in->ch_count) * in->bps;
+        const uint8_t *pi= ich < 0 ? ctx->silence : in->ch[ich];
+        uint8_t       *po= out->ch[ch];
+        uint8_t *end= po + os*len;
+        if(!po)
+            continue;
+        ctx->conv_f(po+off*os, pi+off*is, is, os, end);
+    }
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/audioconvert.h b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/audioconvert.h
new file mode 100644
index 000000000..1ca30c2a6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/audioconvert.h
@@ -0,0 +1,78 @@
+/*
+ * audio conversion
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2008 Peter Ross
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef SWRESAMPLE_AUDIOCONVERT_H
+#define SWRESAMPLE_AUDIOCONVERT_H
+
+/**
+ * @file
+ * Audio format conversion routines
+ */
+
+
+#include "swresample_internal.h"
+#include "libavutil/cpu.h"
+
+
+typedef void (conv_func_type)(uint8_t *po, const uint8_t *pi, int is, int os, uint8_t *end);
+typedef void (simd_func_type)(uint8_t **dst, const uint8_t **src, int len);
+
+typedef struct AudioConvert {
+    int channels;
+    int  in_simd_align_mask;
+    int out_simd_align_mask;
+    conv_func_type *conv_f;
+    simd_func_type *simd_f;
+    const int *ch_map;
+    uint8_t silence[8]; ///< silence input sample
+}AudioConvert;
+
+/**
+ * Create an audio sample format converter context
+ * @param out_fmt Output sample format
+ * @param in_fmt Input sample format
+ * @param channels Number of channels
+ * @param flags See AV_CPU_FLAG_xx
+ * @param ch_map list of the channels id to pick from the source stream, NULL
+ *               if all channels must be selected
+ * @return NULL on error
+ */
+AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt,
+                                       enum AVSampleFormat in_fmt,
+                                       int channels, const int *ch_map,
+                                       int flags);
+
+/**
+ * Free audio sample format converter context.
+ * and set the pointer to NULL
+ */
+void swri_audio_convert_free(AudioConvert **ctx);
+
+/**
+ * Convert between audio sample formats
+ * @param[in] out array of output buffers for each channel. set to NULL to ignore processing of the given channel.
+ * @param[in] in array of input buffers for each channel
+ * @param len length of audio frame size (measured in samples)
+ */
+int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len);
+
+#endif /* SWRESAMPLE_AUDIOCONVERT_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/dither.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/dither.c
new file mode 100644
index 000000000..64068d35b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/dither.c
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2012-2013 Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/avassert.h"
+#include "swresample_internal.h"
+
+#include "noise_shaping_data.c"
+
+int swri_get_dither(SwrContext *s, void *dst, int len, unsigned seed, enum AVSampleFormat noise_fmt) {
+    double scale = s->dither.noise_scale;
+#define TMP_EXTRA 2
+    double *tmp = av_malloc_array(len + TMP_EXTRA, sizeof(double));
+    int i;
+
+    if (!tmp)
+        return AVERROR(ENOMEM);
+
+    for(i=0; i<len + TMP_EXTRA; i++){
+        double v;
+        seed = seed* 1664525 + 1013904223;
+
+        switch(s->dither.method){
+            case SWR_DITHER_RECTANGULAR: v= ((double)seed) / UINT_MAX - 0.5; break;
+            default:
+                av_assert0(s->dither.method < SWR_DITHER_NB);
+                v = ((double)seed) / UINT_MAX;
+                seed = seed*1664525 + 1013904223;
+                v-= ((double)seed) / UINT_MAX;
+                break;
+        }
+        tmp[i] = v;
+    }
+
+    for(i=0; i<len; i++){
+        double v;
+
+        switch(s->dither.method){
+            default:
+                av_assert0(s->dither.method < SWR_DITHER_NB);
+                v = tmp[i];
+                break;
+            case SWR_DITHER_TRIANGULAR_HIGHPASS :
+                v = (- tmp[i] + 2*tmp[i+1] - tmp[i+2]) / sqrt(6);
+                break;
+        }
+
+        v*= scale;
+
+        switch(noise_fmt){
+            case AV_SAMPLE_FMT_S16P: ((int16_t*)dst)[i] = v; break;
+            case AV_SAMPLE_FMT_S32P: ((int32_t*)dst)[i] = v; break;
+            case AV_SAMPLE_FMT_FLTP: ((float  *)dst)[i] = v; break;
+            case AV_SAMPLE_FMT_DBLP: ((double *)dst)[i] = v; break;
+            default: av_assert0(0);
+        }
+    }
+
+    av_free(tmp);
+    return 0;
+}
+
+av_cold int swri_dither_init(SwrContext *s, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt)
+{
+    int i;
+    double scale = 0;
+
+    if (s->dither.method > SWR_DITHER_TRIANGULAR_HIGHPASS && s->dither.method <= SWR_DITHER_NS)
+        return AVERROR(EINVAL);
+
+    out_fmt = av_get_packed_sample_fmt(out_fmt);
+    in_fmt  = av_get_packed_sample_fmt( in_fmt);
+
+    if(in_fmt == AV_SAMPLE_FMT_FLT || in_fmt == AV_SAMPLE_FMT_DBL){
+        if(out_fmt == AV_SAMPLE_FMT_S32) scale = 1.0/(1LL<<31);
+        if(out_fmt == AV_SAMPLE_FMT_S16) scale = 1.0/(1LL<<15);
+        if(out_fmt == AV_SAMPLE_FMT_U8 ) scale = 1.0/(1LL<< 7);
+    }
+    if(in_fmt == AV_SAMPLE_FMT_S32 && out_fmt == AV_SAMPLE_FMT_S32 && (s->dither.output_sample_bits&31)) scale = 1;
+    if(in_fmt == AV_SAMPLE_FMT_S32 && out_fmt == AV_SAMPLE_FMT_S16) scale = 1<<16;
+    if(in_fmt == AV_SAMPLE_FMT_S32 && out_fmt == AV_SAMPLE_FMT_U8 ) scale = 1<<24;
+    if(in_fmt == AV_SAMPLE_FMT_S16 && out_fmt == AV_SAMPLE_FMT_U8 ) scale = 1<<8;
+
+    scale *= s->dither.scale;
+
+    if (out_fmt == AV_SAMPLE_FMT_S32 && s->dither.output_sample_bits)
+        scale *= 1<<(32-s->dither.output_sample_bits);
+
+    if (scale == 0) {
+        s->dither.method = 0;
+        return 0;
+    }
+
+    s->dither.ns_pos = 0;
+    s->dither.noise_scale=   scale;
+    s->dither.ns_scale   =   scale;
+    s->dither.ns_scale_1 = scale ? 1/scale : 0;
+    memset(s->dither.ns_errors, 0, sizeof(s->dither.ns_errors));
+    for (i=0; filters[i].coefs; i++) {
+        const filter_t *f = &filters[i];
+        if (llabs(s->out_sample_rate - f->rate)*20 <= f->rate && f->name == s->dither.method) {
+            int j;
+            s->dither.ns_taps = f->len;
+            for (j=0; j<f->len; j++)
+                s->dither.ns_coeffs[j] = f->coefs[j];
+            s->dither.ns_scale_1 *= 1 - exp(f->gain_cB * M_LN10 * 0.005) * 2 / (1<<(8*av_get_bytes_per_sample(out_fmt)));
+            break;
+        }
+    }
+    if (!filters[i].coefs && s->dither.method > SWR_DITHER_NS) {
+        av_log(s, AV_LOG_WARNING, "Requested noise shaping dither not available at this sampling rate, using triangular hp dither\n");
+        s->dither.method = SWR_DITHER_TRIANGULAR_HIGHPASS;
+    }
+
+    return 0;
+}
+
+#define TEMPLATE_DITHER_S16
+#include "dither_template.c"
+#undef TEMPLATE_DITHER_S16
+
+#define TEMPLATE_DITHER_S32
+#include "dither_template.c"
+#undef TEMPLATE_DITHER_S32
+
+#define TEMPLATE_DITHER_FLT
+#include "dither_template.c"
+#undef TEMPLATE_DITHER_FLT
+
+#define TEMPLATE_DITHER_DBL
+#include "dither_template.c"
+#undef TEMPLATE_DITHER_DBL
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/dither_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/dither_template.c
new file mode 100644
index 000000000..1f535de3d
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/dither_template.c
@@ -0,0 +1,84 @@
+/*
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#if defined(TEMPLATE_DITHER_DBL)
+#    define RENAME(N) N ## _double
+#    define DELEM  double
+#    define CLIP(v) while(0)
+
+#elif defined(TEMPLATE_DITHER_FLT)
+#    define RENAME(N) N ## _float
+#    define DELEM  float
+#    define CLIP(v) while(0)
+
+#elif defined(TEMPLATE_DITHER_S32)
+#    define RENAME(N) N ## _int32
+#    define DELEM  int32_t
+#    define CLIP(v) v = FFMAX(FFMIN(v, INT32_MAX), INT32_MIN)
+
+#elif defined(TEMPLATE_DITHER_S16)
+#    define RENAME(N) N ## _int16
+#    define DELEM  int16_t
+#    define CLIP(v) v = FFMAX(FFMIN(v, INT16_MAX), INT16_MIN)
+
+#else
+ERROR
+#endif
+
+void RENAME(swri_noise_shaping)(SwrContext *s, AudioData *dsts, const AudioData *srcs, const AudioData *noises, int count){
+    int pos = s->dither.ns_pos;
+    int i, j, ch;
+    int taps  = s->dither.ns_taps;
+    float S   = s->dither.ns_scale;
+    float S_1 = s->dither.ns_scale_1;
+
+    av_assert2((taps&3) != 2);
+    av_assert2((taps&3) != 3 || s->dither.ns_coeffs[taps] == 0);
+
+    for (ch=0; ch<srcs->ch_count; ch++) {
+        const float *noise = ((const float *)noises->ch[ch]) + s->dither.noise_pos;
+        const DELEM *src = (const DELEM*)srcs->ch[ch];
+        DELEM *dst = (DELEM*)dsts->ch[ch];
+        float *ns_errors = s->dither.ns_errors[ch];
+        const float *ns_coeffs = s->dither.ns_coeffs;
+        pos  = s->dither.ns_pos;
+        for (i=0; i<count; i++) {
+            double d1, d = src[i]*S_1;
+            for(j=0; j<taps-2; j+=4) {
+                d -= ns_coeffs[j    ] * ns_errors[pos + j    ]
+                    +ns_coeffs[j + 1] * ns_errors[pos + j + 1]
+                    +ns_coeffs[j + 2] * ns_errors[pos + j + 2]
+                    +ns_coeffs[j + 3] * ns_errors[pos + j + 3];
+            }
+            if(j < taps)
+                d -= ns_coeffs[j] * ns_errors[pos + j];
+            pos = pos ? pos - 1 : taps - 1;
+            d1 = rint(d + noise[i]);
+            ns_errors[pos + taps] = ns_errors[pos] = d1 - d;
+            d1 *= S;
+            CLIP(d1);
+            dst[i] = d1;
+        }
+    }
+
+    s->dither.ns_pos = pos;
+}
+
+#undef RENAME
+#undef DELEM
+#undef CLIP
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/noise_shaping_data.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/noise_shaping_data.c
new file mode 100644
index 000000000..77e0f2eaf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/noise_shaping_data.c
@@ -0,0 +1,224 @@
+/* Effect: dither/noise-shape   Copyright (c) 2008-9 robs@users.sourceforge.net
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+typedef struct {
+  int  rate;
+  enum {fir, iir} type;
+  size_t len;
+  int gain_cB; /* Chosen so clips are few if any, but not guaranteed none. */
+  double const * coefs;
+  enum SwrDitherType name;
+} filter_t;
+
+static double const lip44[] = {2.033, -2.165, 1.959, -1.590, .6149};
+static double const fwe44[] = {
+  2.412, -3.370, 3.937, -4.174, 3.353, -2.205, 1.281, -.569, .0847};
+static double const mew44[] = {
+  1.662, -1.263, .4827, -.2913, .1268, -.1124, .03252, -.01265, -.03524};
+static double const iew44[] = {
+  2.847, -4.685, 6.214, -7.184, 6.639, -5.032, 3.263, -1.632, .4191};
+static double const ges44[] = {
+  2.2061, -.4706, -.2534, -.6214, 1.0587, .0676, -.6054, -.2738};
+static double const ges48[] = {
+  2.2374, -.7339, -.1251, -.6033, .903, .0116, -.5853, -.2571};
+
+static double const shi48[] = {
+  2.8720729351043701172,  -5.0413231849670410156,   6.2442994117736816406,
+  -5.8483986854553222656, 3.7067542076110839844,  -1.0495119094848632812,
+  -1.1830236911773681641,   2.1126792430877685547, -1.9094531536102294922,
+  0.99913084506988525391, -0.17090806365013122559, -0.32615602016448974609,
+  0.39127644896507263184, -0.26876461505889892578,  0.097676105797290802002,
+  -0.023473845794796943665,
+};
+static double const shi44[] = {
+  2.6773197650909423828,  -4.8308925628662109375,   6.570110321044921875,
+  -7.4572014808654785156, 6.7263274192810058594,  -4.8481650352478027344,
+  2.0412089824676513672,   0.7006359100341796875, -2.9537565708160400391,
+  4.0800385475158691406,  -4.1845216751098632812,   3.3311812877655029297,
+  -2.1179926395416259766,   0.879302978515625,      -0.031759146600961685181,
+  -0.42382788658142089844, 0.47882103919982910156, -0.35490813851356506348,
+  0.17496839165687561035, -0.060908168554306030273,
+};
+static double const shi38[] = {
+  1.6335992813110351562,  -2.2615492343902587891,   2.4077029228210449219,
+  -2.6341717243194580078, 2.1440362930297851562,  -1.8153258562088012695,
+  1.0816224813461303711,  -0.70302653312683105469, 0.15991993248462677002,
+  0.041549518704414367676, -0.29416576027870178223,  0.2518316805362701416,
+  -0.27766478061676025391,  0.15785403549671173096, -0.10165894031524658203,
+  0.016833892092108726501,
+};
+static double const shi32[] =
+{ /* dmaker 32000: bestmax=4.99659 (inverted) */
+0.82118552923202515,
+-1.0063692331314087,
+0.62341964244842529,
+-1.0447187423706055,
+0.64532512426376343,
+-0.87615132331848145,
+0.52219754457473755,
+-0.67434263229370117,
+0.44954317808151245,
+-0.52557498216629028,
+0.34567299485206604,
+-0.39618203043937683,
+0.26791760325431824,
+-0.28936097025871277,
+0.1883765310049057,
+-0.19097308814525604,
+0.10431359708309174,
+-0.10633844882249832,
+0.046832218766212463,
+-0.039653312414884567,
+};
+static double const shi22[] =
+{ /* dmaker 22050: bestmax=5.77762 (inverted) */
+0.056581053882837296,
+-0.56956905126571655,
+-0.40727734565734863,
+-0.33870288729667664,
+-0.29810553789138794,
+-0.19039161503314972,
+-0.16510021686553955,
+-0.13468159735202789,
+-0.096633769571781158,
+-0.081049129366874695,
+-0.064953058958053589,
+-0.054459091275930405,
+-0.043378707021474838,
+-0.03660014271736145,
+-0.026256965473294258,
+-0.018786206841468811,
+-0.013387725688517094,
+-0.0090983230620622635,
+-0.0026585909072309732,
+-0.00042083300650119781,
+};
+static double const shi16[] =
+{ /* dmaker 16000: bestmax=5.97128 (inverted) */
+-0.37251132726669312,
+-0.81423574686050415,
+-0.55010956525802612,
+-0.47405767440795898,
+-0.32624706625938416,
+-0.3161766529083252,
+-0.2286367267370224,
+-0.22916607558727264,
+-0.19565616548061371,
+-0.18160104751586914,
+-0.15423151850700378,
+-0.14104481041431427,
+-0.11844276636838913,
+-0.097583092749118805,
+-0.076493598520755768,
+-0.068106919527053833,
+-0.041881654411554337,
+-0.036922425031661987,
+-0.019364040344953537,
+-0.014994367957115173,
+};
+static double const shi11[] =
+{ /* dmaker 11025: bestmax=5.9406 (inverted) */
+-0.9264228343963623,
+-0.98695987462997437,
+-0.631156325340271,
+-0.51966935396194458,
+-0.39738872647285461,
+-0.35679301619529724,
+-0.29720726609230042,
+-0.26310476660728455,
+-0.21719355881214142,
+-0.18561814725399017,
+-0.15404847264289856,
+-0.12687471508979797,
+-0.10339745879173279,
+-0.083688631653785706,
+-0.05875682458281517,
+-0.046893671154975891,
+-0.027950936928391457,
+-0.020740609616041183,
+-0.009366452693939209,
+-0.0060260160826146603,
+};
+static double const shi08[] =
+{ /* dmaker 8000: bestmax=5.56234 (inverted) */
+-1.202863335609436,
+-0.94103097915649414,
+-0.67878556251525879,
+-0.57650017738342285,
+-0.50004476308822632,
+-0.44349345564842224,
+-0.37833768129348755,
+-0.34028723835945129,
+-0.29413089156150818,
+-0.24994957447052002,
+-0.21715600788593292,
+-0.18792112171649933,
+-0.15268312394618988,
+-0.12135542929172516,
+-0.099610626697540283,
+-0.075273610651493073,
+-0.048787496984004974,
+-0.042586319148540497,
+-0.028991291299462318,
+-0.011869125068187714,
+};
+static double const shl48[] = {
+  2.3925774097442626953,  -3.4350297451019287109,   3.1853709220886230469,
+  -1.8117271661758422852, -0.20124770700931549072,  1.4759907722473144531,
+  -1.7210904359817504883,   0.97746700048446655273, -0.13790138065814971924,
+  -0.38185903429985046387,  0.27421241998672485352,  0.066584214568138122559,
+  -0.35223302245140075684,  0.37672343850135803223, -0.23964276909828186035,
+  0.068674825131893157959,
+};
+static double const shl44[] = {
+  2.0833916664123535156,  -3.0418450832366943359,   3.2047898769378662109,
+  -2.7571926116943359375, 1.4978630542755126953,  -0.3427594602108001709,
+  -0.71733748912811279297,  1.0737057924270629883, -1.0225815773010253906,
+  0.56649994850158691406, -0.20968692004680633545, -0.065378531813621520996,
+  0.10322438180446624756, -0.067442022264003753662, -0.00495197344571352005,
+  0,
+};
+static double const shh44[] = {
+   3.0259189605712890625, -6.0268716812133789062,   9.195003509521484375,
+   -11.824929237365722656, 12.767142295837402344, -11.917946815490722656,
+   9.1739168167114257812,  -5.3712320327758789062, 1.1393624544143676758,
+   2.4484779834747314453,  -4.9719839096069335938,   6.0392003059387207031,
+   -5.9359521865844726562,  4.903278350830078125,   -3.5527443885803222656,
+   2.1909697055816650391, -1.1672389507293701172,  0.4903914332389831543,
+   -0.16519790887832641602,  0.023217858746647834778,
+};
+
+static const filter_t filters[] = {
+  {44100, fir,  5, 210, lip44,          SWR_DITHER_NS_LIPSHITZ},
+  {46000, fir,  9, 276, fwe44,          SWR_DITHER_NS_F_WEIGHTED},
+  {46000, fir,  9, 160, mew44,          SWR_DITHER_NS_MODIFIED_E_WEIGHTED},
+  {46000, fir,  9, 321, iew44,          SWR_DITHER_NS_IMPROVED_E_WEIGHTED},
+//   {48000, iir,  4, 220, ges48, SWR_DITHER_NS_GESEMANN},
+//   {44100, iir,  4, 230, ges44, SWR_DITHER_NS_GESEMANN},
+  {48000, fir, 16, 301, shi48,          SWR_DITHER_NS_SHIBATA},
+  {44100, fir, 20, 333, shi44,          SWR_DITHER_NS_SHIBATA},
+  {37800, fir, 16, 240, shi38,          SWR_DITHER_NS_SHIBATA},
+  {32000, fir, 20, 240/*TBD*/, shi32,   SWR_DITHER_NS_SHIBATA},
+  {22050, fir, 20, 240/*TBD*/, shi22,   SWR_DITHER_NS_SHIBATA},
+  {16000, fir, 20, 240/*TBD*/, shi16,   SWR_DITHER_NS_SHIBATA},
+  {11025, fir, 20, 240/*TBD*/, shi11,   SWR_DITHER_NS_SHIBATA},
+  { 8000, fir, 20, 240/*TBD*/, shi08,   SWR_DITHER_NS_SHIBATA},
+  {48000, fir, 16, 250, shl48,          SWR_DITHER_NS_LOW_SHIBATA},
+  {44100, fir, 15, 250, shl44,          SWR_DITHER_NS_LOW_SHIBATA},
+  {44100, fir, 20, 383, shh44,          SWR_DITHER_NS_HIGH_SHIBATA},
+  {    0, fir,  0,   0,  NULL,          SWR_DITHER_NONE},
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/options.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/options.c
new file mode 100644
index 000000000..00d4f7c1c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/options.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2011-2013 Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/opt.h"
+#include "swresample_internal.h"
+
+#include <float.h>
+
+#define  C30DB  M_SQRT2
+#define  C15DB  1.189207115
+#define C__0DB  1.0
+#define C_15DB  0.840896415
+#define C_30DB  M_SQRT1_2
+#define C_45DB  0.594603558
+#define C_60DB  0.5
+
+#define OFFSET(x) offsetof(SwrContext,x)
+#define PARAM AV_OPT_FLAG_AUDIO_PARAM
+
+static const AVOption options[]={
+{"ich"                  , "set input channel count"     , OFFSET(user_in_ch_count  ), AV_OPT_TYPE_INT, {.i64=0                    }, 0      , SWR_CH_MAX, PARAM},
+{"in_channel_count"     , "set input channel count"     , OFFSET(user_in_ch_count  ), AV_OPT_TYPE_INT, {.i64=0                    }, 0      , SWR_CH_MAX, PARAM},
+{"och"                  , "set output channel count"    , OFFSET(user_out_ch_count ), AV_OPT_TYPE_INT, {.i64=0                    }, 0      , SWR_CH_MAX, PARAM},
+{"out_channel_count"    , "set output channel count"    , OFFSET(user_out_ch_count ), AV_OPT_TYPE_INT, {.i64=0                    }, 0      , SWR_CH_MAX, PARAM},
+{"uch"                  , "set used channel count"      , OFFSET(user_used_ch_count), AV_OPT_TYPE_INT, {.i64=0                    }, 0      , SWR_CH_MAX, PARAM},
+{"used_channel_count"   , "set used channel count"      , OFFSET(user_used_ch_count), AV_OPT_TYPE_INT, {.i64=0                    }, 0      , SWR_CH_MAX, PARAM},
+{"isr"                  , "set input sample rate"       , OFFSET( in_sample_rate), AV_OPT_TYPE_INT  , {.i64=0                     }, 0      , INT_MAX   , PARAM},
+{"in_sample_rate"       , "set input sample rate"       , OFFSET( in_sample_rate), AV_OPT_TYPE_INT  , {.i64=0                     }, 0      , INT_MAX   , PARAM},
+{"osr"                  , "set output sample rate"      , OFFSET(out_sample_rate), AV_OPT_TYPE_INT  , {.i64=0                     }, 0      , INT_MAX   , PARAM},
+{"out_sample_rate"      , "set output sample rate"      , OFFSET(out_sample_rate), AV_OPT_TYPE_INT  , {.i64=0                     }, 0      , INT_MAX   , PARAM},
+{"isf"                  , "set input sample format"     , OFFSET( in_sample_fmt ), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1   , INT_MAX, PARAM},
+{"in_sample_fmt"        , "set input sample format"     , OFFSET( in_sample_fmt ), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1   , INT_MAX, PARAM},
+{"osf"                  , "set output sample format"    , OFFSET(out_sample_fmt ), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1   , INT_MAX, PARAM},
+{"out_sample_fmt"       , "set output sample format"    , OFFSET(out_sample_fmt ), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1   , INT_MAX, PARAM},
+{"tsf"                  , "set internal sample format"  , OFFSET(user_int_sample_fmt), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1   , INT_MAX, PARAM},
+{"internal_sample_fmt"  , "set internal sample format"  , OFFSET(user_int_sample_fmt), AV_OPT_TYPE_SAMPLE_FMT , {.i64=AV_SAMPLE_FMT_NONE}, -1   , INT_MAX, PARAM},
+{"icl"                  , "set input channel layout"    , OFFSET(user_in_ch_layout ), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=0           }, INT64_MIN, INT64_MAX , PARAM, "channel_layout"},
+{"in_channel_layout"    , "set input channel layout"    , OFFSET(user_in_ch_layout ), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=0           }, INT64_MIN, INT64_MAX , PARAM, "channel_layout"},
+{"ocl"                  , "set output channel layout"   , OFFSET(user_out_ch_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=0           }, INT64_MIN, INT64_MAX , PARAM, "channel_layout"},
+{"out_channel_layout"   , "set output channel layout"   , OFFSET(user_out_ch_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64=0           }, INT64_MIN, INT64_MAX , PARAM, "channel_layout"},
+{"clev"                 , "set center mix level"        , OFFSET(clev           ), AV_OPT_TYPE_FLOAT, {.dbl=C_30DB                }, -32    , 32        , PARAM},
+{"center_mix_level"     , "set center mix level"        , OFFSET(clev           ), AV_OPT_TYPE_FLOAT, {.dbl=C_30DB                }, -32    , 32        , PARAM},
+{"slev"                 , "set surround mix level"      , OFFSET(slev           ), AV_OPT_TYPE_FLOAT, {.dbl=C_30DB                }, -32    , 32        , PARAM},
+{"surround_mix_level"   , "set surround mix Level"      , OFFSET(slev           ), AV_OPT_TYPE_FLOAT, {.dbl=C_30DB                }, -32    , 32        , PARAM},
+{"lfe_mix_level"        , "set LFE mix level"           , OFFSET(lfe_mix_level  ), AV_OPT_TYPE_FLOAT, {.dbl=0                     }, -32    , 32        , PARAM},
+{"rmvol"                , "set rematrix volume"         , OFFSET(rematrix_volume), AV_OPT_TYPE_FLOAT, {.dbl=1.0                   }, -1000  , 1000      , PARAM},
+{"rematrix_volume"      , "set rematrix volume"         , OFFSET(rematrix_volume), AV_OPT_TYPE_FLOAT, {.dbl=1.0                   }, -1000  , 1000      , PARAM},
+{"rematrix_maxval"      , "set rematrix maxval"         , OFFSET(rematrix_maxval), AV_OPT_TYPE_FLOAT, {.dbl=0.0                   }, 0      , 1000      , PARAM},
+
+{"flags"                , "set flags"                   , OFFSET(flags          ), AV_OPT_TYPE_FLAGS, {.i64=0                     }, 0      , UINT_MAX  , PARAM, "flags"},
+{"swr_flags"            , "set flags"                   , OFFSET(flags          ), AV_OPT_TYPE_FLAGS, {.i64=0                     }, 0      , UINT_MAX  , PARAM, "flags"},
+{"res"                  , "force resampling"            , 0                      , AV_OPT_TYPE_CONST, {.i64=SWR_FLAG_RESAMPLE     }, INT_MIN, INT_MAX   , PARAM, "flags"},
+
+{"dither_scale"         , "set dither scale"            , OFFSET(dither.scale   ), AV_OPT_TYPE_FLOAT, {.dbl=1                     }, 0      , INT_MAX   , PARAM},
+
+{"dither_method"        , "set dither method"           , OFFSET(user_dither_method),AV_OPT_TYPE_INT, {.i64=0                     }, 0      , SWR_DITHER_NB-1, PARAM, "dither_method"},
+{"rectangular"          , "select rectangular dither"   , 0                      , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_RECTANGULAR}, INT_MIN, INT_MAX   , PARAM, "dither_method"},
+{"triangular"           , "select triangular dither"    , 0                      , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_TRIANGULAR }, INT_MIN, INT_MAX   , PARAM, "dither_method"},
+{"triangular_hp"        , "select triangular dither with high pass" , 0          , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_TRIANGULAR_HIGHPASS }, INT_MIN, INT_MAX, PARAM, "dither_method"},
+{"lipshitz"             , "select Lipshitz noise shaping dither" , 0             , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_LIPSHITZ}, INT_MIN, INT_MAX, PARAM, "dither_method"},
+{"shibata"              , "select Shibata noise shaping dither" , 0              , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_SHIBATA }, INT_MIN, INT_MAX, PARAM, "dither_method"},
+{"low_shibata"          , "select low Shibata noise shaping dither" , 0          , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_LOW_SHIBATA }, INT_MIN, INT_MAX, PARAM, "dither_method"},
+{"high_shibata"         , "select high Shibata noise shaping dither" , 0         , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_HIGH_SHIBATA }, INT_MIN, INT_MAX, PARAM, "dither_method"},
+{"f_weighted"           , "select f-weighted noise shaping dither" , 0           , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_F_WEIGHTED }, INT_MIN, INT_MAX, PARAM, "dither_method"},
+{"modified_e_weighted"  , "select modified-e-weighted noise shaping dither" , 0  , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_MODIFIED_E_WEIGHTED }, INT_MIN, INT_MAX, PARAM, "dither_method"},
+{"improved_e_weighted"  , "select improved-e-weighted noise shaping dither" , 0  , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_IMPROVED_E_WEIGHTED }, INT_MIN, INT_MAX, PARAM, "dither_method"},
+
+{"filter_size"          , "set swr resampling filter size", OFFSET(filter_size)  , AV_OPT_TYPE_INT  , {.i64=32                    }, 0      , INT_MAX   , PARAM },
+{"phase_shift"          , "set swr resampling phase shift", OFFSET(phase_shift)  , AV_OPT_TYPE_INT  , {.i64=10                    }, 0      , 24        , PARAM },
+{"linear_interp"        , "enable linear interpolation" , OFFSET(linear_interp)  , AV_OPT_TYPE_BOOL , {.i64=1                     }, 0      , 1         , PARAM },
+{"exact_rational"       , "enable exact rational"       , OFFSET(exact_rational) , AV_OPT_TYPE_BOOL , {.i64=1                     }, 0      , 1         , PARAM },
+{"cutoff"               , "set cutoff frequency ratio"  , OFFSET(cutoff)         , AV_OPT_TYPE_DOUBLE,{.dbl=0.                    }, 0      , 1         , PARAM },
+
+/* duplicate option in order to work with avconv */
+{"resample_cutoff"      , "set cutoff frequency ratio"  , OFFSET(cutoff)         , AV_OPT_TYPE_DOUBLE,{.dbl=0.                    }, 0      , 1         , PARAM },
+
+{"resampler"            , "set resampling Engine"       , OFFSET(engine)         , AV_OPT_TYPE_INT  , {.i64=0                     }, 0      , SWR_ENGINE_NB-1, PARAM, "resampler"},
+{"swr"                  , "select SW Resampler"         , 0                      , AV_OPT_TYPE_CONST, {.i64=SWR_ENGINE_SWR        }, INT_MIN, INT_MAX   , PARAM, "resampler"},
+{"soxr"                 , "select SoX Resampler"        , 0                      , AV_OPT_TYPE_CONST, {.i64=SWR_ENGINE_SOXR       }, INT_MIN, INT_MAX   , PARAM, "resampler"},
+{"precision"            , "set soxr resampling precision (in bits)"
+                                                        , OFFSET(precision)      , AV_OPT_TYPE_DOUBLE,{.dbl=20.0                  }, 15.0   , 33.0      , PARAM },
+{"cheby"                , "enable soxr Chebyshev passband & higher-precision irrational ratio approximation"
+                                                        , OFFSET(cheby)          , AV_OPT_TYPE_BOOL , {.i64=0                     }, 0      , 1         , PARAM },
+{"min_comp"             , "set minimum difference between timestamps and audio data (in seconds) below which no timestamp compensation of either kind is applied"
+                                                        , OFFSET(min_compensation),AV_OPT_TYPE_FLOAT ,{.dbl=FLT_MAX               }, 0      , FLT_MAX   , PARAM },
+{"min_hard_comp"        , "set minimum difference between timestamps and audio data (in seconds) to trigger padding/trimming the data."
+                                                        , OFFSET(min_hard_compensation),AV_OPT_TYPE_FLOAT ,{.dbl=0.1                   }, 0      , INT_MAX   , PARAM },
+{"comp_duration"        , "set duration (in seconds) over which data is stretched/squeezed to make it match the timestamps."
+                                                        , OFFSET(soft_compensation_duration),AV_OPT_TYPE_FLOAT ,{.dbl=1                     }, 0      , INT_MAX   , PARAM },
+{"max_soft_comp"        , "set maximum factor by which data is stretched/squeezed to make it match the timestamps."
+                                                        , OFFSET(max_soft_compensation),AV_OPT_TYPE_FLOAT ,{.dbl=0                     }, INT_MIN, INT_MAX   , PARAM },
+{"async"                , "simplified 1 parameter audio timestamp matching, 0(disabled), 1(filling and trimming), >1(maximum stretch/squeeze in samples per second)"
+                                                        , OFFSET(async)          , AV_OPT_TYPE_FLOAT ,{.dbl=0                     }, INT_MIN, INT_MAX   , PARAM },
+{"first_pts"            , "Assume the first pts should be this value (in samples)."
+                                                        , OFFSET(firstpts_in_samples), AV_OPT_TYPE_INT64 ,{.i64=AV_NOPTS_VALUE    }, INT64_MIN,INT64_MAX, PARAM },
+
+{ "matrix_encoding"     , "set matrixed stereo encoding" , OFFSET(matrix_encoding), AV_OPT_TYPE_INT   ,{.i64 = AV_MATRIX_ENCODING_NONE}, AV_MATRIX_ENCODING_NONE,     AV_MATRIX_ENCODING_NB-1, PARAM, "matrix_encoding" },
+    { "none",  "select none",               0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_NONE  }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" },
+    { "dolby", "select Dolby",              0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_DOLBY }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" },
+    { "dplii", "select Dolby Pro Logic II", 0, AV_OPT_TYPE_CONST, { .i64 = AV_MATRIX_ENCODING_DPLII }, INT_MIN, INT_MAX, PARAM, "matrix_encoding" },
+
+{ "filter_type"         , "select swr filter type"      , OFFSET(filter_type)    , AV_OPT_TYPE_INT  , { .i64 = SWR_FILTER_TYPE_KAISER }, SWR_FILTER_TYPE_CUBIC, SWR_FILTER_TYPE_KAISER, PARAM, "filter_type" },
+    { "cubic"           , "select cubic"                , 0                      , AV_OPT_TYPE_CONST, { .i64 = SWR_FILTER_TYPE_CUBIC            }, INT_MIN, INT_MAX, PARAM, "filter_type" },
+    { "blackman_nuttall", "select Blackman Nuttall windowed sinc", 0             , AV_OPT_TYPE_CONST, { .i64 = SWR_FILTER_TYPE_BLACKMAN_NUTTALL }, INT_MIN, INT_MAX, PARAM, "filter_type" },
+    { "kaiser"          , "select Kaiser windowed sinc" , 0                      , AV_OPT_TYPE_CONST, { .i64 = SWR_FILTER_TYPE_KAISER           }, INT_MIN, INT_MAX, PARAM, "filter_type" },
+
+{ "kaiser_beta"         , "set swr Kaiser window beta"  , OFFSET(kaiser_beta)    , AV_OPT_TYPE_DOUBLE  , {.dbl=9                     }, 2      , 16        , PARAM },
+
+{ "output_sample_bits"  , "set swr number of output sample bits", OFFSET(dither.output_sample_bits), AV_OPT_TYPE_INT  , {.i64=0   }, 0      , 64        , PARAM },
+{0}
+};
+
+static const char* context_to_name(void* ptr) {
+    return "SWR";
+}
+
+static const AVClass av_class = {
+    .class_name                = "SWResampler",
+    .item_name                 = context_to_name,
+    .option                    = options,
+    .version                   = LIBAVUTIL_VERSION_INT,
+    .log_level_offset_offset   = OFFSET(log_level_offset),
+    .parent_log_context_offset = OFFSET(log_ctx),
+    .category                  = AV_CLASS_CATEGORY_SWRESAMPLER,
+};
+
+const AVClass *swr_get_class(void)
+{
+    return &av_class;
+}
+
+av_cold struct SwrContext *swr_alloc(void){
+    SwrContext *s= av_mallocz(sizeof(SwrContext));
+    if(s){
+        s->av_class= &av_class;
+        av_opt_set_defaults(s);
+    }
+    return s;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/rematrix.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/rematrix.c
new file mode 100644
index 000000000..6b5feaa07
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/rematrix.c
@@ -0,0 +1,576 @@
+/*
+ * Copyright (C) 2011-2012 Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "swresample_internal.h"
+#include "libavutil/avassert.h"
+#include "libavutil/channel_layout.h"
+
+#define TEMPLATE_REMATRIX_FLT
+#include "rematrix_template.c"
+#undef TEMPLATE_REMATRIX_FLT
+
+#define TEMPLATE_REMATRIX_DBL
+#include "rematrix_template.c"
+#undef TEMPLATE_REMATRIX_DBL
+
+#define TEMPLATE_REMATRIX_S16
+#include "rematrix_template.c"
+#define TEMPLATE_CLIP
+#include "rematrix_template.c"
+#undef TEMPLATE_CLIP
+#undef TEMPLATE_REMATRIX_S16
+
+#define TEMPLATE_REMATRIX_S32
+#include "rematrix_template.c"
+#undef TEMPLATE_REMATRIX_S32
+
+#define FRONT_LEFT             0
+#define FRONT_RIGHT            1
+#define FRONT_CENTER           2
+#define LOW_FREQUENCY          3
+#define BACK_LEFT              4
+#define BACK_RIGHT             5
+#define FRONT_LEFT_OF_CENTER   6
+#define FRONT_RIGHT_OF_CENTER  7
+#define BACK_CENTER            8
+#define SIDE_LEFT              9
+#define SIDE_RIGHT             10
+#define TOP_CENTER             11
+#define TOP_FRONT_LEFT         12
+#define TOP_FRONT_CENTER       13
+#define TOP_FRONT_RIGHT        14
+#define TOP_BACK_LEFT          15
+#define TOP_BACK_CENTER        16
+#define TOP_BACK_RIGHT         17
+#define NUM_NAMED_CHANNELS     18
+
+int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride)
+{
+    int nb_in, nb_out, in, out;
+
+    if (!s || s->in_convert) // s needs to be allocated but not initialized
+        return AVERROR(EINVAL);
+    memset(s->matrix, 0, sizeof(s->matrix));
+    memset(s->matrix_flt, 0, sizeof(s->matrix_flt));
+    nb_in = (s->user_in_ch_count > 0) ? s->user_in_ch_count :
+        av_get_channel_layout_nb_channels(s->user_in_ch_layout);
+    nb_out = (s->user_out_ch_count > 0) ? s->user_out_ch_count :
+        av_get_channel_layout_nb_channels(s->user_out_ch_layout);
+    for (out = 0; out < nb_out; out++) {
+        for (in = 0; in < nb_in; in++)
+            s->matrix_flt[out][in] = s->matrix[out][in] = matrix[in];
+        matrix += stride;
+    }
+    s->rematrix_custom = 1;
+    return 0;
+}
+
+static int even(int64_t layout){
+    if(!layout) return 1;
+    if(layout&(layout-1)) return 1;
+    return 0;
+}
+
+static int clean_layout(void *s, int64_t layout){
+    if(layout && layout != AV_CH_FRONT_CENTER && !(layout&(layout-1))) {
+        char buf[128];
+        av_get_channel_layout_string(buf, sizeof(buf), -1, layout);
+        av_log(s, AV_LOG_VERBOSE, "Treating %s as mono\n", buf);
+        return AV_CH_FRONT_CENTER;
+    }
+
+    return layout;
+}
+
+static int sane_layout(int64_t layout){
+    if(!(layout & AV_CH_LAYOUT_SURROUND)) // at least 1 front speaker
+        return 0;
+    if(!even(layout & (AV_CH_FRONT_LEFT | AV_CH_FRONT_RIGHT))) // no asymetric front
+        return 0;
+    if(!even(layout & (AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT)))   // no asymetric side
+        return 0;
+    if(!even(layout & (AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT)))
+        return 0;
+    if(!even(layout & (AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER)))
+        return 0;
+    if(av_get_channel_layout_nb_channels(layout) >= SWR_CH_MAX)
+        return 0;
+
+    return 1;
+}
+
+av_cold int swr_build_matrix(uint64_t in_ch_layout_param, uint64_t out_ch_layout_param,
+                             double center_mix_level, double surround_mix_level,
+                             double lfe_mix_level, double maxval,
+                             double rematrix_volume, double *matrix_param,
+                             int stride, enum AVMatrixEncoding matrix_encoding, void *log_context)
+{
+    int i, j, out_i;
+    double matrix[NUM_NAMED_CHANNELS][NUM_NAMED_CHANNELS]={{0}};
+    int64_t unaccounted, in_ch_layout, out_ch_layout;
+    double maxcoef=0;
+    char buf[128];
+
+     in_ch_layout = clean_layout(log_context,  in_ch_layout_param);
+    out_ch_layout = clean_layout(log_context, out_ch_layout_param);
+
+    if(   out_ch_layout == AV_CH_LAYOUT_STEREO_DOWNMIX
+       && (in_ch_layout & AV_CH_LAYOUT_STEREO_DOWNMIX) == 0
+    )
+        out_ch_layout = AV_CH_LAYOUT_STEREO;
+
+    if(    in_ch_layout == AV_CH_LAYOUT_STEREO_DOWNMIX
+       && (out_ch_layout & AV_CH_LAYOUT_STEREO_DOWNMIX) == 0
+    )
+        in_ch_layout = AV_CH_LAYOUT_STEREO;
+
+    if(!sane_layout(in_ch_layout)){
+        av_get_channel_layout_string(buf, sizeof(buf), -1, in_ch_layout_param);
+        av_log(log_context, AV_LOG_ERROR, "Input channel layout '%s' is not supported\n", buf);
+        return AVERROR(EINVAL);
+    }
+
+    if(!sane_layout(out_ch_layout)){
+        av_get_channel_layout_string(buf, sizeof(buf), -1, out_ch_layout_param);
+        av_log(log_context, AV_LOG_ERROR, "Output channel layout '%s' is not supported\n", buf);
+        return AVERROR(EINVAL);
+    }
+
+    for(i=0; i<FF_ARRAY_ELEMS(matrix); i++){
+        if(in_ch_layout & out_ch_layout & (1ULL<<i))
+            matrix[i][i]= 1.0;
+    }
+
+    unaccounted= in_ch_layout & ~out_ch_layout;
+
+//FIXME implement dolby surround
+//FIXME implement full ac3
+
+
+    if(unaccounted & AV_CH_FRONT_CENTER){
+        if((out_ch_layout & AV_CH_LAYOUT_STEREO) == AV_CH_LAYOUT_STEREO){
+            if(in_ch_layout & AV_CH_LAYOUT_STEREO) {
+                matrix[ FRONT_LEFT][FRONT_CENTER]+= center_mix_level;
+                matrix[FRONT_RIGHT][FRONT_CENTER]+= center_mix_level;
+            } else {
+                matrix[ FRONT_LEFT][FRONT_CENTER]+= M_SQRT1_2;
+                matrix[FRONT_RIGHT][FRONT_CENTER]+= M_SQRT1_2;
+            }
+        }else
+            av_assert0(0);
+    }
+    if(unaccounted & AV_CH_LAYOUT_STEREO){
+        if(out_ch_layout & AV_CH_FRONT_CENTER){
+            matrix[FRONT_CENTER][ FRONT_LEFT]+= M_SQRT1_2;
+            matrix[FRONT_CENTER][FRONT_RIGHT]+= M_SQRT1_2;
+            if(in_ch_layout & AV_CH_FRONT_CENTER)
+                matrix[FRONT_CENTER][ FRONT_CENTER] = center_mix_level*sqrt(2);
+        }else
+            av_assert0(0);
+    }
+
+    if(unaccounted & AV_CH_BACK_CENTER){
+        if(out_ch_layout & AV_CH_BACK_LEFT){
+            matrix[ BACK_LEFT][BACK_CENTER]+= M_SQRT1_2;
+            matrix[BACK_RIGHT][BACK_CENTER]+= M_SQRT1_2;
+        }else if(out_ch_layout & AV_CH_SIDE_LEFT){
+            matrix[ SIDE_LEFT][BACK_CENTER]+= M_SQRT1_2;
+            matrix[SIDE_RIGHT][BACK_CENTER]+= M_SQRT1_2;
+        }else if(out_ch_layout & AV_CH_FRONT_LEFT){
+            if (matrix_encoding == AV_MATRIX_ENCODING_DOLBY ||
+                matrix_encoding == AV_MATRIX_ENCODING_DPLII) {
+                if (unaccounted & (AV_CH_BACK_LEFT | AV_CH_SIDE_LEFT)) {
+                    matrix[FRONT_LEFT ][BACK_CENTER] -= surround_mix_level * M_SQRT1_2;
+                    matrix[FRONT_RIGHT][BACK_CENTER] += surround_mix_level * M_SQRT1_2;
+                } else {
+                    matrix[FRONT_LEFT ][BACK_CENTER] -= surround_mix_level;
+                    matrix[FRONT_RIGHT][BACK_CENTER] += surround_mix_level;
+                }
+            } else {
+                matrix[ FRONT_LEFT][BACK_CENTER]+= surround_mix_level * M_SQRT1_2;
+                matrix[FRONT_RIGHT][BACK_CENTER]+= surround_mix_level * M_SQRT1_2;
+            }
+        }else if(out_ch_layout & AV_CH_FRONT_CENTER){
+            matrix[ FRONT_CENTER][BACK_CENTER]+= surround_mix_level * M_SQRT1_2;
+        }else
+            av_assert0(0);
+    }
+    if(unaccounted & AV_CH_BACK_LEFT){
+        if(out_ch_layout & AV_CH_BACK_CENTER){
+            matrix[BACK_CENTER][ BACK_LEFT]+= M_SQRT1_2;
+            matrix[BACK_CENTER][BACK_RIGHT]+= M_SQRT1_2;
+        }else if(out_ch_layout & AV_CH_SIDE_LEFT){
+            if(in_ch_layout & AV_CH_SIDE_LEFT){
+                matrix[ SIDE_LEFT][ BACK_LEFT]+= M_SQRT1_2;
+                matrix[SIDE_RIGHT][BACK_RIGHT]+= M_SQRT1_2;
+            }else{
+            matrix[ SIDE_LEFT][ BACK_LEFT]+= 1.0;
+            matrix[SIDE_RIGHT][BACK_RIGHT]+= 1.0;
+            }
+        }else if(out_ch_layout & AV_CH_FRONT_LEFT){
+            if (matrix_encoding == AV_MATRIX_ENCODING_DOLBY) {
+                matrix[FRONT_LEFT ][BACK_LEFT ] -= surround_mix_level * M_SQRT1_2;
+                matrix[FRONT_LEFT ][BACK_RIGHT] -= surround_mix_level * M_SQRT1_2;
+                matrix[FRONT_RIGHT][BACK_LEFT ] += surround_mix_level * M_SQRT1_2;
+                matrix[FRONT_RIGHT][BACK_RIGHT] += surround_mix_level * M_SQRT1_2;
+            } else if (matrix_encoding == AV_MATRIX_ENCODING_DPLII) {
+                matrix[FRONT_LEFT ][BACK_LEFT ] -= surround_mix_level * SQRT3_2;
+                matrix[FRONT_LEFT ][BACK_RIGHT] -= surround_mix_level * M_SQRT1_2;
+                matrix[FRONT_RIGHT][BACK_LEFT ] += surround_mix_level * M_SQRT1_2;
+                matrix[FRONT_RIGHT][BACK_RIGHT] += surround_mix_level * SQRT3_2;
+            } else {
+                matrix[ FRONT_LEFT][ BACK_LEFT] += surround_mix_level;
+                matrix[FRONT_RIGHT][BACK_RIGHT] += surround_mix_level;
+            }
+        }else if(out_ch_layout & AV_CH_FRONT_CENTER){
+            matrix[ FRONT_CENTER][BACK_LEFT ]+= surround_mix_level*M_SQRT1_2;
+            matrix[ FRONT_CENTER][BACK_RIGHT]+= surround_mix_level*M_SQRT1_2;
+        }else
+            av_assert0(0);
+    }
+
+    if(unaccounted & AV_CH_SIDE_LEFT){
+        if(out_ch_layout & AV_CH_BACK_LEFT){
+            /* if back channels do not exist in the input, just copy side
+               channels to back channels, otherwise mix side into back */
+            if (in_ch_layout & AV_CH_BACK_LEFT) {
+                matrix[BACK_LEFT ][SIDE_LEFT ] += M_SQRT1_2;
+                matrix[BACK_RIGHT][SIDE_RIGHT] += M_SQRT1_2;
+            } else {
+                matrix[BACK_LEFT ][SIDE_LEFT ] += 1.0;
+                matrix[BACK_RIGHT][SIDE_RIGHT] += 1.0;
+            }
+        }else if(out_ch_layout & AV_CH_BACK_CENTER){
+            matrix[BACK_CENTER][ SIDE_LEFT]+= M_SQRT1_2;
+            matrix[BACK_CENTER][SIDE_RIGHT]+= M_SQRT1_2;
+        }else if(out_ch_layout & AV_CH_FRONT_LEFT){
+            if (matrix_encoding == AV_MATRIX_ENCODING_DOLBY) {
+                matrix[FRONT_LEFT ][SIDE_LEFT ] -= surround_mix_level * M_SQRT1_2;
+                matrix[FRONT_LEFT ][SIDE_RIGHT] -= surround_mix_level * M_SQRT1_2;
+                matrix[FRONT_RIGHT][SIDE_LEFT ] += surround_mix_level * M_SQRT1_2;
+                matrix[FRONT_RIGHT][SIDE_RIGHT] += surround_mix_level * M_SQRT1_2;
+            } else if (matrix_encoding == AV_MATRIX_ENCODING_DPLII) {
+                matrix[FRONT_LEFT ][SIDE_LEFT ] -= surround_mix_level * SQRT3_2;
+                matrix[FRONT_LEFT ][SIDE_RIGHT] -= surround_mix_level * M_SQRT1_2;
+                matrix[FRONT_RIGHT][SIDE_LEFT ] += surround_mix_level * M_SQRT1_2;
+                matrix[FRONT_RIGHT][SIDE_RIGHT] += surround_mix_level * SQRT3_2;
+            } else {
+                matrix[ FRONT_LEFT][ SIDE_LEFT] += surround_mix_level;
+                matrix[FRONT_RIGHT][SIDE_RIGHT] += surround_mix_level;
+            }
+        }else if(out_ch_layout & AV_CH_FRONT_CENTER){
+            matrix[ FRONT_CENTER][SIDE_LEFT ]+= surround_mix_level * M_SQRT1_2;
+            matrix[ FRONT_CENTER][SIDE_RIGHT]+= surround_mix_level * M_SQRT1_2;
+        }else
+            av_assert0(0);
+    }
+
+    if(unaccounted & AV_CH_FRONT_LEFT_OF_CENTER){
+        if(out_ch_layout & AV_CH_FRONT_LEFT){
+            matrix[ FRONT_LEFT][ FRONT_LEFT_OF_CENTER]+= 1.0;
+            matrix[FRONT_RIGHT][FRONT_RIGHT_OF_CENTER]+= 1.0;
+        }else if(out_ch_layout & AV_CH_FRONT_CENTER){
+            matrix[ FRONT_CENTER][ FRONT_LEFT_OF_CENTER]+= M_SQRT1_2;
+            matrix[ FRONT_CENTER][FRONT_RIGHT_OF_CENTER]+= M_SQRT1_2;
+        }else
+            av_assert0(0);
+    }
+    /* mix LFE into front left/right or center */
+    if (unaccounted & AV_CH_LOW_FREQUENCY) {
+        if (out_ch_layout & AV_CH_FRONT_CENTER) {
+            matrix[FRONT_CENTER][LOW_FREQUENCY] += lfe_mix_level;
+        } else if (out_ch_layout & AV_CH_FRONT_LEFT) {
+            matrix[FRONT_LEFT ][LOW_FREQUENCY] += lfe_mix_level * M_SQRT1_2;
+            matrix[FRONT_RIGHT][LOW_FREQUENCY] += lfe_mix_level * M_SQRT1_2;
+        } else
+            av_assert0(0);
+    }
+
+    for(out_i=i=0; i<64; i++){
+        double sum=0;
+        int in_i=0;
+        if((out_ch_layout & (1ULL<<i)) == 0)
+            continue;
+        for(j=0; j<64; j++){
+            if((in_ch_layout & (1ULL<<j)) == 0)
+               continue;
+            if (i < FF_ARRAY_ELEMS(matrix) && j < FF_ARRAY_ELEMS(matrix[0]))
+                matrix_param[stride*out_i + in_i] = matrix[i][j];
+            else
+                matrix_param[stride*out_i + in_i] = i == j && (in_ch_layout & out_ch_layout & (1ULL<<i));
+            sum += fabs(matrix_param[stride*out_i + in_i]);
+            in_i++;
+        }
+        maxcoef= FFMAX(maxcoef, sum);
+        out_i++;
+    }
+    if(rematrix_volume  < 0)
+        maxcoef = -rematrix_volume;
+
+    if(maxcoef > maxval || rematrix_volume  < 0){
+        maxcoef /= maxval;
+        for(i=0; i<SWR_CH_MAX; i++)
+            for(j=0; j<SWR_CH_MAX; j++){
+                matrix_param[stride*i + j] /= maxcoef;
+            }
+    }
+
+    if(rematrix_volume > 0){
+        for(i=0; i<SWR_CH_MAX; i++)
+            for(j=0; j<SWR_CH_MAX; j++){
+                matrix_param[stride*i + j] *= rematrix_volume;
+            }
+    }
+
+    av_log(log_context, AV_LOG_DEBUG, "Matrix coefficients:\n");
+    for(i=0; i<av_get_channel_layout_nb_channels(out_ch_layout); i++){
+        const char *c =
+            av_get_channel_name(av_channel_layout_extract_channel(out_ch_layout, i));
+        av_log(log_context, AV_LOG_DEBUG, "%s: ", c ? c : "?");
+        for(j=0; j<av_get_channel_layout_nb_channels(in_ch_layout); j++){
+            c = av_get_channel_name(av_channel_layout_extract_channel(in_ch_layout, j));
+            av_log(log_context, AV_LOG_DEBUG, "%s:%f ", c ? c : "?", matrix_param[stride*i + j]);
+        }
+        av_log(log_context, AV_LOG_DEBUG, "\n");
+    }
+    return 0;
+}
+
+av_cold static int auto_matrix(SwrContext *s)
+{
+    double maxval;
+    int ret;
+
+    if (s->rematrix_maxval > 0) {
+        maxval = s->rematrix_maxval;
+    } else if (   av_get_packed_sample_fmt(s->out_sample_fmt) < AV_SAMPLE_FMT_FLT
+               || av_get_packed_sample_fmt(s->int_sample_fmt) < AV_SAMPLE_FMT_FLT) {
+        maxval = 1.0;
+    } else
+        maxval = INT_MAX;
+
+    memset(s->matrix, 0, sizeof(s->matrix));
+    ret = swr_build_matrix(s->in_ch_layout, s->out_ch_layout,
+                           s->clev, s->slev, s->lfe_mix_level,
+                           maxval, s->rematrix_volume, (double*)s->matrix,
+                           s->matrix[1] - s->matrix[0], s->matrix_encoding, s);
+
+    if (ret >= 0 && s->int_sample_fmt == AV_SAMPLE_FMT_FLTP) {
+        int i, j;
+        for (i = 0; i < FF_ARRAY_ELEMS(s->matrix[0]); i++)
+            for (j = 0; j < FF_ARRAY_ELEMS(s->matrix[0]); j++)
+                s->matrix_flt[i][j] = s->matrix[i][j];
+    }
+
+    return ret;
+}
+
+av_cold int swri_rematrix_init(SwrContext *s){
+    int i, j;
+    int nb_in  = s->used_ch_count;
+    int nb_out = s->out.ch_count;
+
+    s->mix_any_f = NULL;
+
+    if (!s->rematrix_custom) {
+        int r = auto_matrix(s);
+        if (r)
+            return r;
+    }
+    if (s->midbuf.fmt == AV_SAMPLE_FMT_S16P){
+        int maxsum = 0;
+        s->native_matrix = av_calloc(nb_in * nb_out, sizeof(int));
+        s->native_one    = av_mallocz(sizeof(int));
+        if (!s->native_matrix || !s->native_one)
+            return AVERROR(ENOMEM);
+        for (i = 0; i < nb_out; i++) {
+            double rem = 0;
+            int sum = 0;
+
+            for (j = 0; j < nb_in; j++) {
+                double target = s->matrix[i][j] * 32768 + rem;
+                ((int*)s->native_matrix)[i * nb_in + j] = lrintf(target);
+                rem += target - ((int*)s->native_matrix)[i * nb_in + j];
+                sum += FFABS(((int*)s->native_matrix)[i * nb_in + j]);
+            }
+            maxsum = FFMAX(maxsum, sum);
+        }
+        *((int*)s->native_one) = 32768;
+        if (maxsum <= 32768) {
+            s->mix_1_1_f = (mix_1_1_func_type*)copy_s16;
+            s->mix_2_1_f = (mix_2_1_func_type*)sum2_s16;
+            s->mix_any_f = (mix_any_func_type*)get_mix_any_func_s16(s);
+        } else {
+            s->mix_1_1_f = (mix_1_1_func_type*)copy_clip_s16;
+            s->mix_2_1_f = (mix_2_1_func_type*)sum2_clip_s16;
+            s->mix_any_f = (mix_any_func_type*)get_mix_any_func_clip_s16(s);
+        }
+    }else if(s->midbuf.fmt == AV_SAMPLE_FMT_FLTP){
+        s->native_matrix = av_calloc(nb_in * nb_out, sizeof(float));
+        s->native_one    = av_mallocz(sizeof(float));
+        if (!s->native_matrix || !s->native_one)
+            return AVERROR(ENOMEM);
+        for (i = 0; i < nb_out; i++)
+            for (j = 0; j < nb_in; j++)
+                ((float*)s->native_matrix)[i * nb_in + j] = s->matrix[i][j];
+        *((float*)s->native_one) = 1.0;
+        s->mix_1_1_f = (mix_1_1_func_type*)copy_float;
+        s->mix_2_1_f = (mix_2_1_func_type*)sum2_float;
+        s->mix_any_f = (mix_any_func_type*)get_mix_any_func_float(s);
+    }else if(s->midbuf.fmt == AV_SAMPLE_FMT_DBLP){
+        s->native_matrix = av_calloc(nb_in * nb_out, sizeof(double));
+        s->native_one    = av_mallocz(sizeof(double));
+        if (!s->native_matrix || !s->native_one)
+            return AVERROR(ENOMEM);
+        for (i = 0; i < nb_out; i++)
+            for (j = 0; j < nb_in; j++)
+                ((double*)s->native_matrix)[i * nb_in + j] = s->matrix[i][j];
+        *((double*)s->native_one) = 1.0;
+        s->mix_1_1_f = (mix_1_1_func_type*)copy_double;
+        s->mix_2_1_f = (mix_2_1_func_type*)sum2_double;
+        s->mix_any_f = (mix_any_func_type*)get_mix_any_func_double(s);
+    }else if(s->midbuf.fmt == AV_SAMPLE_FMT_S32P){
+        s->native_one    = av_mallocz(sizeof(int));
+        if (!s->native_one)
+            return AVERROR(ENOMEM);
+        s->native_matrix = av_calloc(nb_in * nb_out, sizeof(int));
+        if (!s->native_matrix) {
+            av_freep(&s->native_one);
+            return AVERROR(ENOMEM);
+        }
+        for (i = 0; i < nb_out; i++) {
+            double rem = 0;
+
+            for (j = 0; j < nb_in; j++) {
+                double target = s->matrix[i][j] * 32768 + rem;
+                ((int*)s->native_matrix)[i * nb_in + j] = lrintf(target);
+                rem += target - ((int*)s->native_matrix)[i * nb_in + j];
+            }
+        }
+        *((int*)s->native_one) = 32768;
+        s->mix_1_1_f = (mix_1_1_func_type*)copy_s32;
+        s->mix_2_1_f = (mix_2_1_func_type*)sum2_s32;
+        s->mix_any_f = (mix_any_func_type*)get_mix_any_func_s32(s);
+    }else
+        av_assert0(0);
+    //FIXME quantize for integeres
+    for (i = 0; i < SWR_CH_MAX; i++) {
+        int ch_in=0;
+        for (j = 0; j < SWR_CH_MAX; j++) {
+            s->matrix32[i][j]= lrintf(s->matrix[i][j] * 32768);
+            if(s->matrix[i][j])
+                s->matrix_ch[i][++ch_in]= j;
+        }
+        s->matrix_ch[i][0]= ch_in;
+    }
+
+    if(HAVE_X86ASM && HAVE_MMX)
+        return swri_rematrix_init_x86(s);
+
+    return 0;
+}
+
+av_cold void swri_rematrix_free(SwrContext *s){
+    av_freep(&s->native_matrix);
+    av_freep(&s->native_one);
+    av_freep(&s->native_simd_matrix);
+    av_freep(&s->native_simd_one);
+}
+
+int swri_rematrix(SwrContext *s, AudioData *out, AudioData *in, int len, int mustcopy){
+    int out_i, in_i, i, j;
+    int len1 = 0;
+    int off = 0;
+
+    if(s->mix_any_f) {
+        s->mix_any_f(out->ch, (const uint8_t **)in->ch, s->native_matrix, len);
+        return 0;
+    }
+
+    if(s->mix_2_1_simd || s->mix_1_1_simd){
+        len1= len&~15;
+        off = len1 * out->bps;
+    }
+
+    av_assert0(!s->out_ch_layout || out->ch_count == av_get_channel_layout_nb_channels(s->out_ch_layout));
+    av_assert0(!s-> in_ch_layout || in ->ch_count == av_get_channel_layout_nb_channels(s-> in_ch_layout));
+
+    for(out_i=0; out_i<out->ch_count; out_i++){
+        switch(s->matrix_ch[out_i][0]){
+        case 0:
+            if(mustcopy)
+                memset(out->ch[out_i], 0, len * av_get_bytes_per_sample(s->int_sample_fmt));
+            break;
+        case 1:
+            in_i= s->matrix_ch[out_i][1];
+            if(s->matrix[out_i][in_i]!=1.0){
+                if(s->mix_1_1_simd && len1)
+                    s->mix_1_1_simd(out->ch[out_i]    , in->ch[in_i]    , s->native_simd_matrix, in->ch_count*out_i + in_i, len1);
+                if(len != len1)
+                    s->mix_1_1_f   (out->ch[out_i]+off, in->ch[in_i]+off, s->native_matrix, in->ch_count*out_i + in_i, len-len1);
+            }else if(mustcopy){
+                memcpy(out->ch[out_i], in->ch[in_i], len*out->bps);
+            }else{
+                out->ch[out_i]= in->ch[in_i];
+            }
+            break;
+        case 2: {
+            int in_i1 = s->matrix_ch[out_i][1];
+            int in_i2 = s->matrix_ch[out_i][2];
+            if(s->mix_2_1_simd && len1)
+                s->mix_2_1_simd(out->ch[out_i]    , in->ch[in_i1]    , in->ch[in_i2]    , s->native_simd_matrix, in->ch_count*out_i + in_i1, in->ch_count*out_i + in_i2, len1);
+            else
+                s->mix_2_1_f   (out->ch[out_i]    , in->ch[in_i1]    , in->ch[in_i2]    , s->native_matrix, in->ch_count*out_i + in_i1, in->ch_count*out_i + in_i2, len1);
+            if(len != len1)
+                s->mix_2_1_f   (out->ch[out_i]+off, in->ch[in_i1]+off, in->ch[in_i2]+off, s->native_matrix, in->ch_count*out_i + in_i1, in->ch_count*out_i + in_i2, len-len1);
+            break;}
+        default:
+            if(s->int_sample_fmt == AV_SAMPLE_FMT_FLTP){
+                for(i=0; i<len; i++){
+                    float v=0;
+                    for(j=0; j<s->matrix_ch[out_i][0]; j++){
+                        in_i= s->matrix_ch[out_i][1+j];
+                        v+= ((float*)in->ch[in_i])[i] * s->matrix_flt[out_i][in_i];
+                    }
+                    ((float*)out->ch[out_i])[i]= v;
+                }
+            }else if(s->int_sample_fmt == AV_SAMPLE_FMT_DBLP){
+                for(i=0; i<len; i++){
+                    double v=0;
+                    for(j=0; j<s->matrix_ch[out_i][0]; j++){
+                        in_i= s->matrix_ch[out_i][1+j];
+                        v+= ((double*)in->ch[in_i])[i] * s->matrix[out_i][in_i];
+                    }
+                    ((double*)out->ch[out_i])[i]= v;
+                }
+            }else{
+                for(i=0; i<len; i++){
+                    int v=0;
+                    for(j=0; j<s->matrix_ch[out_i][0]; j++){
+                        in_i= s->matrix_ch[out_i][1+j];
+                        v+= ((int16_t*)in->ch[in_i])[i] * s->matrix32[out_i][in_i];
+                    }
+                    ((int16_t*)out->ch[out_i])[i]= (v + 16384)>>15;
+                }
+            }
+        }
+    }
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/rematrix_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/rematrix_template.c
new file mode 100644
index 000000000..add65e315
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/rematrix_template.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2011-2012 Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#if defined(TEMPLATE_REMATRIX_FLT)
+#    define R(x) x
+#    define SAMPLE float
+#    define COEFF float
+#    define INTER float
+#    define RENAME(x) x ## _float
+#elif defined(TEMPLATE_REMATRIX_DBL)
+#    define R(x) x
+#    define SAMPLE double
+#    define COEFF double
+#    define INTER double
+#    define RENAME(x) x ## _double
+#elif defined(TEMPLATE_REMATRIX_S16)
+#    define SAMPLE int16_t
+#    define COEFF int
+#    define INTER int
+#  ifdef TEMPLATE_CLIP
+#    define R(x) av_clip_int16(((x) + 16384)>>15)
+#    define RENAME(x) x ## _clip_s16
+#  else
+#    define R(x) (((x) + 16384)>>15)
+#    define RENAME(x) x ## _s16
+#  endif
+#elif defined(TEMPLATE_REMATRIX_S32)
+#    define R(x) (((x) + 16384)>>15)
+#    define SAMPLE int32_t
+#    define COEFF int
+#    define INTER int64_t
+#    define RENAME(x) x ## _s32
+#endif
+
+typedef void (RENAME(mix_any_func_type))(SAMPLE **out, const SAMPLE **in1, COEFF *coeffp, integer len);
+
+static void RENAME(sum2)(SAMPLE *out, const SAMPLE *in1, const SAMPLE *in2, COEFF *coeffp, integer index1, integer index2, integer len){
+    int i;
+    INTER coeff1 = coeffp[index1];
+    INTER coeff2 = coeffp[index2];
+
+    for(i=0; i<len; i++)
+        out[i] = R(coeff1*in1[i] + coeff2*in2[i]);
+}
+
+static void RENAME(copy)(SAMPLE *out, const SAMPLE *in, COEFF *coeffp, integer index, integer len){
+    int i;
+    INTER coeff = coeffp[index];
+    for(i=0; i<len; i++)
+        out[i] = R(coeff*in[i]);
+}
+
+static void RENAME(mix6to2)(SAMPLE **out, const SAMPLE **in, COEFF *coeffp, integer len){
+    int i;
+
+    for(i=0; i<len; i++) {
+        INTER t = in[2][i]*(INTER)coeffp[0*6+2] + in[3][i]*(INTER)coeffp[0*6+3];
+        out[0][i] = R(t + in[0][i]*(INTER)coeffp[0*6+0] + in[4][i]*(INTER)coeffp[0*6+4]);
+        out[1][i] = R(t + in[1][i]*(INTER)coeffp[1*6+1] + in[5][i]*(INTER)coeffp[1*6+5]);
+    }
+}
+
+static void RENAME(mix8to2)(SAMPLE **out, const SAMPLE **in, COEFF *coeffp, integer len){
+    int i;
+
+    for(i=0; i<len; i++) {
+        INTER t = in[2][i]*(INTER)coeffp[0*8+2] + in[3][i]*(INTER)coeffp[0*8+3];
+        out[0][i] = R(t + in[0][i]*(INTER)coeffp[0*8+0] + in[4][i]*(INTER)coeffp[0*8+4] + in[6][i]*(INTER)coeffp[0*8+6]);
+        out[1][i] = R(t + in[1][i]*(INTER)coeffp[1*8+1] + in[5][i]*(INTER)coeffp[1*8+5] + in[7][i]*(INTER)coeffp[1*8+7]);
+    }
+}
+
+static RENAME(mix_any_func_type) *RENAME(get_mix_any_func)(SwrContext *s){
+    if(   s->out_ch_layout == AV_CH_LAYOUT_STEREO && (s->in_ch_layout == AV_CH_LAYOUT_5POINT1 || s->in_ch_layout == AV_CH_LAYOUT_5POINT1_BACK)
+       && s->matrix[0][2] == s->matrix[1][2] && s->matrix[0][3] == s->matrix[1][3]
+       && !s->matrix[0][1] && !s->matrix[0][5] && !s->matrix[1][0] && !s->matrix[1][4]
+    )
+        return RENAME(mix6to2);
+
+    if(   s->out_ch_layout == AV_CH_LAYOUT_STEREO && s->in_ch_layout == AV_CH_LAYOUT_7POINT1
+       && s->matrix[0][2] == s->matrix[1][2] && s->matrix[0][3] == s->matrix[1][3]
+       && !s->matrix[0][1] && !s->matrix[0][5] && !s->matrix[1][0] && !s->matrix[1][4]
+       && !s->matrix[0][7] && !s->matrix[1][6]
+    )
+        return RENAME(mix8to2);
+
+    return NULL;
+}
+
+#undef R
+#undef SAMPLE
+#undef COEFF
+#undef INTER
+#undef RENAME
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/resample.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/resample.c
new file mode 100644
index 000000000..df49505bf
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/resample.c
@@ -0,0 +1,622 @@
+/*
+ * audio resampling
+ * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
+ * bessel function: Copyright (c) 2006 Xiaogang Zhang
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * audio resampling
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "libavutil/avassert.h"
+#include "resample.h"
+
+static inline double eval_poly(const double *coeff, int size, double x) {
+    double sum = coeff[size-1];
+    int i;
+    for (i = size-2; i >= 0; --i) {
+        sum *= x;
+        sum += coeff[i];
+    }
+    return sum;
+}
+
+/**
+ * 0th order modified bessel function of the first kind.
+ * Algorithm taken from the Boost project, source:
+ * https://searchcode.com/codesearch/view/14918379/
+ * Use, modification and distribution are subject to the
+ * Boost Software License, Version 1.0 (see notice below).
+ * Boost Software License - Version 1.0 - August 17th, 2003
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+ */
+
+static double bessel(double x) {
+// Modified Bessel function of the first kind of order zero
+// minimax rational approximations on intervals, see
+// Blair and Edwards, Chalk River Report AECL-4928, 1974
+    static const double p1[] = {
+        -2.2335582639474375249e+15,
+        -5.5050369673018427753e+14,
+        -3.2940087627407749166e+13,
+        -8.4925101247114157499e+11,
+        -1.1912746104985237192e+10,
+        -1.0313066708737980747e+08,
+        -5.9545626019847898221e+05,
+        -2.4125195876041896775e+03,
+        -7.0935347449210549190e+00,
+        -1.5453977791786851041e-02,
+        -2.5172644670688975051e-05,
+        -3.0517226450451067446e-08,
+        -2.6843448573468483278e-11,
+        -1.5982226675653184646e-14,
+        -5.2487866627945699800e-18,
+    };
+    static const double q1[] = {
+        -2.2335582639474375245e+15,
+         7.8858692566751002988e+12,
+        -1.2207067397808979846e+10,
+         1.0377081058062166144e+07,
+        -4.8527560179962773045e+03,
+         1.0,
+    };
+    static const double p2[] = {
+        -2.2210262233306573296e-04,
+         1.3067392038106924055e-02,
+        -4.4700805721174453923e-01,
+         5.5674518371240761397e+00,
+        -2.3517945679239481621e+01,
+         3.1611322818701131207e+01,
+        -9.6090021968656180000e+00,
+    };
+    static const double q2[] = {
+        -5.5194330231005480228e-04,
+         3.2547697594819615062e-02,
+        -1.1151759188741312645e+00,
+         1.3982595353892851542e+01,
+        -6.0228002066743340583e+01,
+         8.5539563258012929600e+01,
+        -3.1446690275135491500e+01,
+        1.0,
+    };
+    double y, r, factor;
+    if (x == 0)
+        return 1.0;
+    x = fabs(x);
+    if (x <= 15) {
+        y = x * x;
+        return eval_poly(p1, FF_ARRAY_ELEMS(p1), y) / eval_poly(q1, FF_ARRAY_ELEMS(q1), y);
+    }
+    else {
+        y = 1 / x - 1.0 / 15;
+        r = eval_poly(p2, FF_ARRAY_ELEMS(p2), y) / eval_poly(q2, FF_ARRAY_ELEMS(q2), y);
+        factor = exp(x) / sqrt(x);
+        return factor * r;
+    }
+}
+
+/**
+ * builds a polyphase filterbank.
+ * @param factor resampling factor
+ * @param scale wanted sum of coefficients for each filter
+ * @param filter_type  filter type
+ * @param kaiser_beta  kaiser window beta
+ * @return 0 on success, negative on error
+ */
+static int build_filter(ResampleContext *c, void *filter, double factor, int tap_count, int alloc, int phase_count, int scale,
+                        int filter_type, double kaiser_beta){
+    int ph, i;
+    int ph_nb = phase_count % 2 ? phase_count : phase_count / 2 + 1;
+    double x, y, w, t, s;
+    double *tab = av_malloc_array(tap_count+1,  sizeof(*tab));
+    double *sin_lut = av_malloc_array(ph_nb, sizeof(*sin_lut));
+    const int center= (tap_count-1)/2;
+    double norm = 0;
+    int ret = AVERROR(ENOMEM);
+
+    if (!tab || !sin_lut)
+        goto fail;
+
+    av_assert0(tap_count == 1 || tap_count % 2 == 0);
+
+    /* if upsampling, only need to interpolate, no filter */
+    if (factor > 1.0)
+        factor = 1.0;
+
+    if (factor == 1.0) {
+        for (ph = 0; ph < ph_nb; ph++)
+            sin_lut[ph] = sin(M_PI * ph / phase_count) * (center & 1 ? 1 : -1);
+    }
+    for(ph = 0; ph < ph_nb; ph++) {
+        s = sin_lut[ph];
+        for(i=0;i<tap_count;i++) {
+            x = M_PI * ((double)(i - center) - (double)ph / phase_count) * factor;
+            if (x == 0) y = 1.0;
+            else if (factor == 1.0)
+                y = s / x;
+            else
+                y = sin(x) / x;
+            switch(filter_type){
+            case SWR_FILTER_TYPE_CUBIC:{
+                const float d= -0.5; //first order derivative = -0.5
+                x = fabs(((double)(i - center) - (double)ph / phase_count) * factor);
+                if(x<1.0) y= 1 - 3*x*x + 2*x*x*x + d*(            -x*x + x*x*x);
+                else      y=                       d*(-4 + 8*x - 5*x*x + x*x*x);
+                break;}
+            case SWR_FILTER_TYPE_BLACKMAN_NUTTALL:
+                w = 2.0*x / (factor*tap_count);
+                t = -cos(w);
+                y *= 0.3635819 - 0.4891775 * t + 0.1365995 * (2*t*t-1) - 0.0106411 * (4*t*t*t - 3*t);
+                break;
+            case SWR_FILTER_TYPE_KAISER:
+                w = 2.0*x / (factor*tap_count*M_PI);
+                y *= bessel(kaiser_beta*sqrt(FFMAX(1-w*w, 0)));
+                break;
+            default:
+                av_assert0(0);
+            }
+
+            tab[i] = y;
+            s = -s;
+            if (!ph)
+                norm += y;
+        }
+
+        /* normalize so that an uniform color remains the same */
+        switch(c->format){
+        case AV_SAMPLE_FMT_S16P:
+            for(i=0;i<tap_count;i++)
+                ((int16_t*)filter)[ph * alloc + i] = av_clip_int16(lrintf(tab[i] * scale / norm));
+            if (phase_count % 2) break;
+            for (i = 0; i < tap_count; i++)
+                ((int16_t*)filter)[(phase_count-ph) * alloc + tap_count-1-i] = ((int16_t*)filter)[ph * alloc + i];
+            break;
+        case AV_SAMPLE_FMT_S32P:
+            for(i=0;i<tap_count;i++)
+                ((int32_t*)filter)[ph * alloc + i] = av_clipl_int32(llrint(tab[i] * scale / norm));
+            if (phase_count % 2) break;
+            for (i = 0; i < tap_count; i++)
+                ((int32_t*)filter)[(phase_count-ph) * alloc + tap_count-1-i] = ((int32_t*)filter)[ph * alloc + i];
+            break;
+        case AV_SAMPLE_FMT_FLTP:
+            for(i=0;i<tap_count;i++)
+                ((float*)filter)[ph * alloc + i] = tab[i] * scale / norm;
+            if (phase_count % 2) break;
+            for (i = 0; i < tap_count; i++)
+                ((float*)filter)[(phase_count-ph) * alloc + tap_count-1-i] = ((float*)filter)[ph * alloc + i];
+            break;
+        case AV_SAMPLE_FMT_DBLP:
+            for(i=0;i<tap_count;i++)
+                ((double*)filter)[ph * alloc + i] = tab[i] * scale / norm;
+            if (phase_count % 2) break;
+            for (i = 0; i < tap_count; i++)
+                ((double*)filter)[(phase_count-ph) * alloc + tap_count-1-i] = ((double*)filter)[ph * alloc + i];
+            break;
+        }
+    }
+#if 0
+    {
+#define LEN 1024
+        int j,k;
+        double sine[LEN + tap_count];
+        double filtered[LEN];
+        double maxff=-2, minff=2, maxsf=-2, minsf=2;
+        for(i=0; i<LEN; i++){
+            double ss=0, sf=0, ff=0;
+            for(j=0; j<LEN+tap_count; j++)
+                sine[j]= cos(i*j*M_PI/LEN);
+            for(j=0; j<LEN; j++){
+                double sum=0;
+                ph=0;
+                for(k=0; k<tap_count; k++)
+                    sum += filter[ph * tap_count + k] * sine[k+j];
+                filtered[j]= sum / (1<<FILTER_SHIFT);
+                ss+= sine[j + center] * sine[j + center];
+                ff+= filtered[j] * filtered[j];
+                sf+= sine[j + center] * filtered[j];
+            }
+            ss= sqrt(2*ss/LEN);
+            ff= sqrt(2*ff/LEN);
+            sf= 2*sf/LEN;
+            maxff= FFMAX(maxff, ff);
+            minff= FFMIN(minff, ff);
+            maxsf= FFMAX(maxsf, sf);
+            minsf= FFMIN(minsf, sf);
+            if(i%11==0){
+                av_log(NULL, AV_LOG_ERROR, "i:%4d ss:%f ff:%13.6e-%13.6e sf:%13.6e-%13.6e\n", i, ss, maxff, minff, maxsf, minsf);
+                minff=minsf= 2;
+                maxff=maxsf= -2;
+            }
+        }
+    }
+#endif
+
+    ret = 0;
+fail:
+    av_free(tab);
+    av_free(sin_lut);
+    return ret;
+}
+
+static void resample_free(ResampleContext **cc){
+    ResampleContext *c = *cc;
+    if(!c)
+        return;
+    av_freep(&c->filter_bank);
+    av_freep(cc);
+}
+
+static ResampleContext *resample_init(ResampleContext *c, int out_rate, int in_rate, int filter_size, int phase_shift, int linear,
+                                    double cutoff0, enum AVSampleFormat format, enum SwrFilterType filter_type, double kaiser_beta,
+                                    double precision, int cheby, int exact_rational)
+{
+    double cutoff = cutoff0? cutoff0 : 0.97;
+    double factor= FFMIN(out_rate * cutoff / in_rate, 1.0);
+    int phase_count= 1<<phase_shift;
+    int phase_count_compensation = phase_count;
+    int filter_length = FFMAX((int)ceil(filter_size/factor), 1);
+
+    if (filter_length > 1)
+        filter_length = FFALIGN(filter_length, 2);
+
+    if (exact_rational) {
+        int phase_count_exact, phase_count_exact_den;
+
+        av_reduce(&phase_count_exact, &phase_count_exact_den, out_rate, in_rate, INT_MAX);
+        if (phase_count_exact <= phase_count) {
+            phase_count_compensation = phase_count_exact * (phase_count / phase_count_exact);
+            phase_count = phase_count_exact;
+        }
+    }
+
+    if (!c || c->phase_count != phase_count || c->linear!=linear || c->factor != factor
+           || c->filter_length != filter_length || c->format != format
+           || c->filter_type != filter_type || c->kaiser_beta != kaiser_beta) {
+        resample_free(&c);
+        c = av_mallocz(sizeof(*c));
+        if (!c)
+            return NULL;
+
+        c->format= format;
+
+        c->felem_size= av_get_bytes_per_sample(c->format);
+
+        switch(c->format){
+        case AV_SAMPLE_FMT_S16P:
+            c->filter_shift = 15;
+            break;
+        case AV_SAMPLE_FMT_S32P:
+            c->filter_shift = 30;
+            break;
+        case AV_SAMPLE_FMT_FLTP:
+        case AV_SAMPLE_FMT_DBLP:
+            c->filter_shift = 0;
+            break;
+        default:
+            av_log(NULL, AV_LOG_ERROR, "Unsupported sample format\n");
+            av_assert0(0);
+        }
+
+        if (filter_size/factor > INT32_MAX/256) {
+            av_log(NULL, AV_LOG_ERROR, "Filter length too large\n");
+            goto error;
+        }
+
+        c->phase_count   = phase_count;
+        c->linear        = linear;
+        c->factor        = factor;
+        c->filter_length = filter_length;
+        c->filter_alloc  = FFALIGN(c->filter_length, 8);
+        c->filter_bank   = av_calloc(c->filter_alloc, (phase_count+1)*c->felem_size);
+        c->filter_type   = filter_type;
+        c->kaiser_beta   = kaiser_beta;
+        c->phase_count_compensation = phase_count_compensation;
+        if (!c->filter_bank)
+            goto error;
+        if (build_filter(c, (void*)c->filter_bank, factor, c->filter_length, c->filter_alloc, phase_count, 1<<c->filter_shift, filter_type, kaiser_beta))
+            goto error;
+        memcpy(c->filter_bank + (c->filter_alloc*phase_count+1)*c->felem_size, c->filter_bank, (c->filter_alloc-1)*c->felem_size);
+        memcpy(c->filter_bank + (c->filter_alloc*phase_count  )*c->felem_size, c->filter_bank + (c->filter_alloc - 1)*c->felem_size, c->felem_size);
+    }
+
+    c->compensation_distance= 0;
+    if(!av_reduce(&c->src_incr, &c->dst_incr, out_rate, in_rate * (int64_t)phase_count, INT32_MAX/2))
+        goto error;
+    while (c->dst_incr < (1<<20) && c->src_incr < (1<<20)) {
+        c->dst_incr *= 2;
+        c->src_incr *= 2;
+    }
+    c->ideal_dst_incr = c->dst_incr;
+    c->dst_incr_div   = c->dst_incr / c->src_incr;
+    c->dst_incr_mod   = c->dst_incr % c->src_incr;
+
+    c->index= -phase_count*((c->filter_length-1)/2);
+    c->frac= 0;
+
+    swri_resample_dsp_init(c);
+
+    return c;
+error:
+    av_freep(&c->filter_bank);
+    av_free(c);
+    return NULL;
+}
+
+static int rebuild_filter_bank_with_compensation(ResampleContext *c)
+{
+    uint8_t *new_filter_bank;
+    int new_src_incr, new_dst_incr;
+    int phase_count = c->phase_count_compensation;
+    int ret;
+
+    if (phase_count == c->phase_count)
+        return 0;
+
+    av_assert0(!c->frac && !c->dst_incr_mod);
+
+    new_filter_bank = av_calloc(c->filter_alloc, (phase_count + 1) * c->felem_size);
+    if (!new_filter_bank)
+        return AVERROR(ENOMEM);
+
+    ret = build_filter(c, new_filter_bank, c->factor, c->filter_length, c->filter_alloc,
+                       phase_count, 1 << c->filter_shift, c->filter_type, c->kaiser_beta);
+    if (ret < 0) {
+        av_freep(&new_filter_bank);
+        return ret;
+    }
+    memcpy(new_filter_bank + (c->filter_alloc*phase_count+1)*c->felem_size, new_filter_bank, (c->filter_alloc-1)*c->felem_size);
+    memcpy(new_filter_bank + (c->filter_alloc*phase_count  )*c->felem_size, new_filter_bank + (c->filter_alloc - 1)*c->felem_size, c->felem_size);
+
+    if (!av_reduce(&new_src_incr, &new_dst_incr, c->src_incr,
+                   c->dst_incr * (int64_t)(phase_count/c->phase_count), INT32_MAX/2))
+    {
+        av_freep(&new_filter_bank);
+        return AVERROR(EINVAL);
+    }
+
+    c->src_incr = new_src_incr;
+    c->dst_incr = new_dst_incr;
+    while (c->dst_incr < (1<<20) && c->src_incr < (1<<20)) {
+        c->dst_incr *= 2;
+        c->src_incr *= 2;
+    }
+    c->ideal_dst_incr = c->dst_incr;
+    c->dst_incr_div   = c->dst_incr / c->src_incr;
+    c->dst_incr_mod   = c->dst_incr % c->src_incr;
+    c->index         *= phase_count / c->phase_count;
+    c->phase_count    = phase_count;
+    av_freep(&c->filter_bank);
+    c->filter_bank = new_filter_bank;
+    return 0;
+}
+
+static int set_compensation(ResampleContext *c, int sample_delta, int compensation_distance){
+    int ret;
+
+    if (compensation_distance && sample_delta) {
+        ret = rebuild_filter_bank_with_compensation(c);
+        if (ret < 0)
+            return ret;
+    }
+
+    c->compensation_distance= compensation_distance;
+    if (compensation_distance)
+        c->dst_incr = c->ideal_dst_incr - c->ideal_dst_incr * (int64_t)sample_delta / compensation_distance;
+    else
+        c->dst_incr = c->ideal_dst_incr;
+
+    c->dst_incr_div   = c->dst_incr / c->src_incr;
+    c->dst_incr_mod   = c->dst_incr % c->src_incr;
+
+    return 0;
+}
+
+static int multiple_resample(ResampleContext *c, AudioData *dst, int dst_size, AudioData *src, int src_size, int *consumed){
+    int i;
+    int av_unused mm_flags = av_get_cpu_flags();
+    int need_emms = c->format == AV_SAMPLE_FMT_S16P && ARCH_X86_32 &&
+                    (mm_flags & (AV_CPU_FLAG_MMX2 | AV_CPU_FLAG_SSE2)) == AV_CPU_FLAG_MMX2;
+    int64_t max_src_size = (INT64_MAX/2 / c->phase_count) / c->src_incr;
+
+    if (c->compensation_distance)
+        dst_size = FFMIN(dst_size, c->compensation_distance);
+    src_size = FFMIN(src_size, max_src_size);
+
+    *consumed = 0;
+
+    if (c->filter_length == 1 && c->phase_count == 1) {
+        int64_t index2= (1LL<<32)*c->frac/c->src_incr + (1LL<<32)*c->index;
+        int64_t incr= (1LL<<32) * c->dst_incr / c->src_incr;
+        int new_size = (src_size * (int64_t)c->src_incr - c->frac + c->dst_incr - 1) / c->dst_incr;
+
+        dst_size = FFMAX(FFMIN(dst_size, new_size), 0);
+        if (dst_size > 0) {
+            for (i = 0; i < dst->ch_count; i++) {
+                c->dsp.resample_one(dst->ch[i], src->ch[i], dst_size, index2, incr);
+                if (i+1 == dst->ch_count) {
+                    c->index += dst_size * c->dst_incr_div;
+                    c->index += (c->frac + dst_size * (int64_t)c->dst_incr_mod) / c->src_incr;
+                    av_assert2(c->index >= 0);
+                    *consumed = c->index;
+                    c->frac   = (c->frac + dst_size * (int64_t)c->dst_incr_mod) % c->src_incr;
+                    c->index = 0;
+                }
+            }
+        }
+    } else {
+        int64_t end_index = (1LL + src_size - c->filter_length) * c->phase_count;
+        int64_t delta_frac = (end_index - c->index) * c->src_incr - c->frac;
+        int delta_n = (delta_frac + c->dst_incr - 1) / c->dst_incr;
+        int (*resample_func)(struct ResampleContext *c, void *dst,
+                             const void *src, int n, int update_ctx);
+
+        dst_size = FFMAX(FFMIN(dst_size, delta_n), 0);
+        if (dst_size > 0) {
+            /* resample_linear and resample_common should have same behavior
+             * when frac and dst_incr_mod are zero */
+            resample_func = (c->linear && (c->frac || c->dst_incr_mod)) ?
+                            c->dsp.resample_linear : c->dsp.resample_common;
+            for (i = 0; i < dst->ch_count; i++)
+                *consumed = resample_func(c, dst->ch[i], src->ch[i], dst_size, i+1 == dst->ch_count);
+        }
+    }
+
+    if(need_emms)
+        emms_c();
+
+    if (c->compensation_distance) {
+        c->compensation_distance -= dst_size;
+        if (!c->compensation_distance) {
+            c->dst_incr     = c->ideal_dst_incr;
+            c->dst_incr_div = c->dst_incr / c->src_incr;
+            c->dst_incr_mod = c->dst_incr % c->src_incr;
+        }
+    }
+
+    return dst_size;
+}
+
+static int64_t get_delay(struct SwrContext *s, int64_t base){
+    ResampleContext *c = s->resample;
+    int64_t num = s->in_buffer_count - (c->filter_length-1)/2;
+    num *= c->phase_count;
+    num -= c->index;
+    num *= c->src_incr;
+    num -= c->frac;
+    return av_rescale(num, base, s->in_sample_rate*(int64_t)c->src_incr * c->phase_count);
+}
+
+static int64_t get_out_samples(struct SwrContext *s, int in_samples) {
+    ResampleContext *c = s->resample;
+    // The + 2 are added to allow implementations to be slightly inaccurate, they should not be needed currently.
+    // They also make it easier to proof that changes and optimizations do not
+    // break the upper bound.
+    int64_t num = s->in_buffer_count + 2LL + in_samples;
+    num *= c->phase_count;
+    num -= c->index;
+    num = av_rescale_rnd(num, s->out_sample_rate, ((int64_t)s->in_sample_rate) * c->phase_count, AV_ROUND_UP) + 2;
+
+    if (c->compensation_distance) {
+        if (num > INT_MAX)
+            return AVERROR(EINVAL);
+
+        num = FFMAX(num, (num * c->ideal_dst_incr - 1) / c->dst_incr + 1);
+    }
+    return num;
+}
+
+static int resample_flush(struct SwrContext *s) {
+    ResampleContext *c = s->resample;
+    AudioData *a= &s->in_buffer;
+    int i, j, ret;
+    int reflection = (FFMIN(s->in_buffer_count, c->filter_length) + 1) / 2;
+
+    if((ret = swri_realloc_audio(a, s->in_buffer_index + s->in_buffer_count + reflection)) < 0)
+        return ret;
+    av_assert0(a->planar);
+    for(i=0; i<a->ch_count; i++){
+        for(j=0; j<reflection; j++){
+            memcpy(a->ch[i] + (s->in_buffer_index+s->in_buffer_count+j  )*a->bps,
+                a->ch[i] + (s->in_buffer_index+s->in_buffer_count-j-1)*a->bps, a->bps);
+        }
+    }
+    s->in_buffer_count += reflection;
+    return 0;
+}
+
+// in fact the whole handle multiple ridiculously small buffers might need more thinking...
+static int invert_initial_buffer(ResampleContext *c, AudioData *dst, const AudioData *src,
+                                 int in_count, int *out_idx, int *out_sz)
+{
+    int n, ch, num = FFMIN(in_count + *out_sz, c->filter_length + 1), res;
+
+    if (c->index >= 0)
+        return 0;
+
+    if ((res = swri_realloc_audio(dst, c->filter_length * 2 + 1)) < 0)
+        return res;
+
+    // copy
+    for (n = *out_sz; n < num; n++) {
+        for (ch = 0; ch < src->ch_count; ch++) {
+            memcpy(dst->ch[ch] + ((c->filter_length + n) * c->felem_size),
+                   src->ch[ch] + ((n - *out_sz) * c->felem_size), c->felem_size);
+        }
+    }
+
+    // if not enough data is in, return and wait for more
+    if (num < c->filter_length + 1) {
+        *out_sz = num;
+        *out_idx = c->filter_length;
+        return INT_MAX;
+    }
+
+    // else invert
+    for (n = 1; n <= c->filter_length; n++) {
+        for (ch = 0; ch < src->ch_count; ch++) {
+            memcpy(dst->ch[ch] + ((c->filter_length - n) * c->felem_size),
+                   dst->ch[ch] + ((c->filter_length + n) * c->felem_size),
+                   c->felem_size);
+        }
+    }
+
+    res = num - *out_sz;
+    *out_idx = c->filter_length;
+    while (c->index < 0) {
+        --*out_idx;
+        c->index += c->phase_count;
+    }
+    *out_sz = FFMAX(*out_sz + c->filter_length,
+                    1 + c->filter_length * 2) - *out_idx;
+
+    return FFMAX(res, 0);
+}
+
+struct Resampler const swri_resampler={
+  resample_init,
+  resample_free,
+  multiple_resample,
+  resample_flush,
+  set_compensation,
+  get_delay,
+  invert_initial_buffer,
+  get_out_samples,
+};
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/resample.h b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/resample.h
new file mode 100644
index 000000000..1731dad3c
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/resample.h
@@ -0,0 +1,68 @@
+/*
+ * audio resampling
+ * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef SWRESAMPLE_RESAMPLE_H
+#define SWRESAMPLE_RESAMPLE_H
+
+#include "libavutil/log.h"
+#include "libavutil/samplefmt.h"
+
+#include "swresample_internal.h"
+
+typedef struct ResampleContext {
+    const AVClass *av_class;
+    uint8_t *filter_bank;
+    int filter_length;
+    int filter_alloc;
+    int ideal_dst_incr;
+    int dst_incr;
+    int dst_incr_div;
+    int dst_incr_mod;
+    int index;
+    int frac;
+    int src_incr;
+    int compensation_distance;
+    int phase_count;
+    int linear;
+    enum SwrFilterType filter_type;
+    double kaiser_beta;
+    double factor;
+    enum AVSampleFormat format;
+    int felem_size;
+    int filter_shift;
+    int phase_count_compensation;      /* desired phase_count when compensation is enabled */
+
+    struct {
+        void (*resample_one)(void *dst, const void *src,
+                             int n, int64_t index, int64_t incr);
+        int (*resample_common)(struct ResampleContext *c, void *dst,
+                               const void *src, int n, int update_ctx);
+        int (*resample_linear)(struct ResampleContext *c, void *dst,
+                               const void *src, int n, int update_ctx);
+    } dsp;
+} ResampleContext;
+
+void swri_resample_dsp_init(ResampleContext *c);
+void swri_resample_dsp_x86_init(ResampleContext *c);
+void swri_resample_dsp_arm_init(ResampleContext *c);
+void swri_resample_dsp_aarch64_init(ResampleContext *c);
+
+#endif /* SWRESAMPLE_RESAMPLE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/resample_dsp.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/resample_dsp.c
new file mode 100644
index 000000000..b2424eb6f
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/resample_dsp.c
@@ -0,0 +1,74 @@
+/*
+ * audio resampling
+ * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * audio resampling
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "resample.h"
+
+#define TEMPLATE_RESAMPLE_S16
+#include "resample_template.c"
+#undef TEMPLATE_RESAMPLE_S16
+
+#define TEMPLATE_RESAMPLE_S32
+#include "resample_template.c"
+#undef TEMPLATE_RESAMPLE_S32
+
+#define TEMPLATE_RESAMPLE_FLT
+#include "resample_template.c"
+#undef TEMPLATE_RESAMPLE_FLT
+
+#define TEMPLATE_RESAMPLE_DBL
+#include "resample_template.c"
+#undef TEMPLATE_RESAMPLE_DBL
+
+void swri_resample_dsp_init(ResampleContext *c)
+{
+    switch(c->format){
+    case AV_SAMPLE_FMT_S16P:
+        c->dsp.resample_one = resample_one_int16;
+        c->dsp.resample_common = resample_common_int16;
+        c->dsp.resample_linear = resample_linear_int16;
+        break;
+    case AV_SAMPLE_FMT_S32P:
+        c->dsp.resample_one = resample_one_int32;
+        c->dsp.resample_common = resample_common_int32;
+        c->dsp.resample_linear = resample_linear_int32;
+        break;
+    case AV_SAMPLE_FMT_FLTP:
+        c->dsp.resample_one = resample_one_float;
+        c->dsp.resample_common = resample_common_float;
+        c->dsp.resample_linear = resample_linear_float;
+        break;
+    case AV_SAMPLE_FMT_DBLP:
+        c->dsp.resample_one = resample_one_double;
+        c->dsp.resample_common = resample_common_double;
+        c->dsp.resample_linear = resample_linear_double;
+        break;
+    }
+
+    if (ARCH_X86) swri_resample_dsp_x86_init(c);
+    else if (ARCH_ARM) swri_resample_dsp_arm_init(c);
+    else if (ARCH_AARCH64) swri_resample_dsp_aarch64_init(c);
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/resample_template.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/resample_template.c
new file mode 100644
index 000000000..4c227b994
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/resample_template.c
@@ -0,0 +1,212 @@
+/*
+ * audio resampling
+ * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * audio resampling
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#if defined(TEMPLATE_RESAMPLE_DBL)
+
+#    define RENAME(N) N ## _double
+#    define FILTER_SHIFT 0
+#    define DELEM  double
+#    define FELEM  double
+#    define FELEM2 double
+#    define FOFFSET 0
+#    define OUT(d, v) d = v
+
+#elif    defined(TEMPLATE_RESAMPLE_FLT)
+
+#    define RENAME(N) N ## _float
+#    define FILTER_SHIFT 0
+#    define DELEM  float
+#    define FELEM  float
+#    define FELEM2 float
+#    define FOFFSET 0
+#    define OUT(d, v) d = v
+
+#elif defined(TEMPLATE_RESAMPLE_S32)
+
+#    define RENAME(N) N ## _int32
+#    define FILTER_SHIFT 30
+#    define DELEM  int32_t
+#    define FELEM  int32_t
+#    define FELEM2 int64_t
+#    define FELEM_MAX INT32_MAX
+#    define FELEM_MIN INT32_MIN
+#    define FOFFSET (1<<(FILTER_SHIFT-1))
+#    define OUT(d, v) (d) = av_clipl_int32((v)>>FILTER_SHIFT)
+
+#elif    defined(TEMPLATE_RESAMPLE_S16)
+
+#    define RENAME(N) N ## _int16
+#    define FILTER_SHIFT 15
+#    define DELEM  int16_t
+#    define FELEM  int16_t
+#    define FELEM2 int32_t
+#    define FELEML int64_t
+#    define FELEM_MAX INT16_MAX
+#    define FELEM_MIN INT16_MIN
+#    define FOFFSET (1<<(FILTER_SHIFT-1))
+#    define OUT(d, v) (d) = av_clip_int16((v)>>FILTER_SHIFT)
+
+#endif
+
+static void RENAME(resample_one)(void *dest, const void *source,
+                                 int dst_size, int64_t index2, int64_t incr)
+{
+    DELEM *dst = dest;
+    const DELEM *src = source;
+    int dst_index;
+
+    for (dst_index = 0; dst_index < dst_size; dst_index++) {
+        dst[dst_index] = src[index2 >> 32];
+        index2 += incr;
+    }
+}
+
+static int RENAME(resample_common)(ResampleContext *c,
+                                   void *dest, const void *source,
+                                   int n, int update_ctx)
+{
+    DELEM *dst = dest;
+    const DELEM *src = source;
+    int dst_index;
+    int index= c->index;
+    int frac= c->frac;
+    int sample_index = 0;
+
+    while (index >= c->phase_count) {
+        sample_index++;
+        index -= c->phase_count;
+    }
+
+    for (dst_index = 0; dst_index < n; dst_index++) {
+        FELEM *filter = ((FELEM *) c->filter_bank) + c->filter_alloc * index;
+
+        FELEM2 val = FOFFSET;
+        FELEM2 val2= 0;
+        int i;
+        for (i = 0; i + 1 < c->filter_length; i+=2) {
+            val  += src[sample_index + i    ] * (FELEM2)filter[i    ];
+            val2 += src[sample_index + i + 1] * (FELEM2)filter[i + 1];
+        }
+        if (i < c->filter_length)
+            val  += src[sample_index + i    ] * (FELEM2)filter[i    ];
+#ifdef FELEML
+        OUT(dst[dst_index], val + (FELEML)val2);
+#else
+        OUT(dst[dst_index], val + val2);
+#endif
+
+        frac  += c->dst_incr_mod;
+        index += c->dst_incr_div;
+        if (frac >= c->src_incr) {
+            frac -= c->src_incr;
+            index++;
+        }
+
+        while (index >= c->phase_count) {
+            sample_index++;
+            index -= c->phase_count;
+        }
+    }
+
+    if(update_ctx){
+        c->frac= frac;
+        c->index= index;
+    }
+
+    return sample_index;
+}
+
+static int RENAME(resample_linear)(ResampleContext *c,
+                                   void *dest, const void *source,
+                                   int n, int update_ctx)
+{
+    DELEM *dst = dest;
+    const DELEM *src = source;
+    int dst_index;
+    int index= c->index;
+    int frac= c->frac;
+    int sample_index = 0;
+#if FILTER_SHIFT == 0
+    double inv_src_incr = 1.0 / c->src_incr;
+#endif
+
+    while (index >= c->phase_count) {
+        sample_index++;
+        index -= c->phase_count;
+    }
+
+    for (dst_index = 0; dst_index < n; dst_index++) {
+        FELEM *filter = ((FELEM *) c->filter_bank) + c->filter_alloc * index;
+        FELEM2 val = FOFFSET, v2 = FOFFSET;
+
+        int i;
+        for (i = 0; i < c->filter_length; i++) {
+            val += src[sample_index + i] * (FELEM2)filter[i];
+            v2  += src[sample_index + i] * (FELEM2)filter[i + c->filter_alloc];
+        }
+#ifdef FELEML
+        val += (v2 - val) * (FELEML) frac / c->src_incr;
+#else
+#    if FILTER_SHIFT == 0
+        val += (v2 - val) * inv_src_incr * frac;
+#    else
+        val += (v2 - val) / c->src_incr * frac;
+#    endif
+#endif
+        OUT(dst[dst_index], val);
+
+        frac += c->dst_incr_mod;
+        index += c->dst_incr_div;
+        if (frac >= c->src_incr) {
+            frac -= c->src_incr;
+            index++;
+        }
+
+        while (index >= c->phase_count) {
+            sample_index++;
+            index -= c->phase_count;
+        }
+    }
+
+    if(update_ctx){
+        c->frac= frac;
+        c->index= index;
+    }
+
+    return sample_index;
+}
+
+#undef RENAME
+#undef FILTER_SHIFT
+#undef DELEM
+#undef FELEM
+#undef FELEM2
+#undef FELEML
+#undef FELEM_MAX
+#undef FELEM_MIN
+#undef OUT
+#undef FOFFSET
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresample.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresample.c
new file mode 100644
index 000000000..1ac5ef9a3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresample.c
@@ -0,0 +1,949 @@
+/*
+ * Copyright (C) 2011-2013 Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/opt.h"
+#include "swresample_internal.h"
+#include "audioconvert.h"
+#include "libavutil/avassert.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/internal.h"
+
+#include <float.h>
+
+#define ALIGN 32
+
+#include "libavutil/ffversion.h"
+const char swr_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
+
+unsigned swresample_version(void)
+{
+    av_assert0(LIBSWRESAMPLE_VERSION_MICRO >= 100);
+    return LIBSWRESAMPLE_VERSION_INT;
+}
+
+const char *swresample_configuration(void)
+{
+    return FFMPEG_CONFIGURATION;
+}
+
+const char *swresample_license(void)
+{
+#define LICENSE_PREFIX "libswresample license: "
+    return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+}
+
+int swr_set_channel_mapping(struct SwrContext *s, const int *channel_map){
+    if(!s || s->in_convert) // s needs to be allocated but not initialized
+        return AVERROR(EINVAL);
+    s->channel_map = channel_map;
+    return 0;
+}
+
+struct SwrContext *swr_alloc_set_opts(struct SwrContext *s,
+                                      int64_t out_ch_layout, enum AVSampleFormat out_sample_fmt, int out_sample_rate,
+                                      int64_t  in_ch_layout, enum AVSampleFormat  in_sample_fmt, int  in_sample_rate,
+                                      int log_offset, void *log_ctx){
+    if(!s) s= swr_alloc();
+    if(!s) return NULL;
+
+    s->log_level_offset= log_offset;
+    s->log_ctx= log_ctx;
+
+    if (av_opt_set_int(s, "ocl", out_ch_layout,   0) < 0)
+        goto fail;
+
+    if (av_opt_set_int(s, "osf", out_sample_fmt,  0) < 0)
+        goto fail;
+
+    if (av_opt_set_int(s, "osr", out_sample_rate, 0) < 0)
+        goto fail;
+
+    if (av_opt_set_int(s, "icl", in_ch_layout,    0) < 0)
+        goto fail;
+
+    if (av_opt_set_int(s, "isf", in_sample_fmt,   0) < 0)
+        goto fail;
+
+    if (av_opt_set_int(s, "isr", in_sample_rate,  0) < 0)
+        goto fail;
+
+    if (av_opt_set_int(s, "ich", av_get_channel_layout_nb_channels(s-> user_in_ch_layout), 0) < 0)
+        goto fail;
+
+    if (av_opt_set_int(s, "och", av_get_channel_layout_nb_channels(s->user_out_ch_layout), 0) < 0)
+        goto fail;
+
+    av_opt_set_int(s, "uch", 0, 0);
+    return s;
+fail:
+    av_log(s, AV_LOG_ERROR, "Failed to set option\n");
+    swr_free(&s);
+    return NULL;
+}
+
+static void set_audiodata_fmt(AudioData *a, enum AVSampleFormat fmt){
+    a->fmt   = fmt;
+    a->bps   = av_get_bytes_per_sample(fmt);
+    a->planar= av_sample_fmt_is_planar(fmt);
+    if (a->ch_count == 1)
+        a->planar = 1;
+}
+
+static void free_temp(AudioData *a){
+    av_free(a->data);
+    memset(a, 0, sizeof(*a));
+}
+
+static void clear_context(SwrContext *s){
+    s->in_buffer_index= 0;
+    s->in_buffer_count= 0;
+    s->resample_in_constraint= 0;
+    memset(s->in.ch, 0, sizeof(s->in.ch));
+    memset(s->out.ch, 0, sizeof(s->out.ch));
+    free_temp(&s->postin);
+    free_temp(&s->midbuf);
+    free_temp(&s->preout);
+    free_temp(&s->in_buffer);
+    free_temp(&s->silence);
+    free_temp(&s->drop_temp);
+    free_temp(&s->dither.noise);
+    free_temp(&s->dither.temp);
+    swri_audio_convert_free(&s-> in_convert);
+    swri_audio_convert_free(&s->out_convert);
+    swri_audio_convert_free(&s->full_convert);
+    swri_rematrix_free(s);
+
+    s->delayed_samples_fixup = 0;
+    s->flushed = 0;
+}
+
+av_cold void swr_free(SwrContext **ss){
+    SwrContext *s= *ss;
+    if(s){
+        clear_context(s);
+        if (s->resampler)
+            s->resampler->free(&s->resample);
+    }
+
+    av_freep(ss);
+}
+
+av_cold void swr_close(SwrContext *s){
+    clear_context(s);
+}
+
+av_cold int swr_init(struct SwrContext *s){
+    int ret;
+    char l1[1024], l2[1024];
+
+    clear_context(s);
+
+    if(s-> in_sample_fmt >= AV_SAMPLE_FMT_NB){
+        av_log(s, AV_LOG_ERROR, "Requested input sample format %d is invalid\n", s->in_sample_fmt);
+        return AVERROR(EINVAL);
+    }
+    if(s->out_sample_fmt >= AV_SAMPLE_FMT_NB){
+        av_log(s, AV_LOG_ERROR, "Requested output sample format %d is invalid\n", s->out_sample_fmt);
+        return AVERROR(EINVAL);
+    }
+
+    if(s-> in_sample_rate <= 0){
+        av_log(s, AV_LOG_ERROR, "Requested input sample rate %d is invalid\n", s->in_sample_rate);
+        return AVERROR(EINVAL);
+    }
+    if(s->out_sample_rate <= 0){
+        av_log(s, AV_LOG_ERROR, "Requested output sample rate %d is invalid\n", s->out_sample_rate);
+        return AVERROR(EINVAL);
+    }
+    s->out.ch_count  = s-> user_out_ch_count;
+    s-> in.ch_count  = s->  user_in_ch_count;
+    s->used_ch_count = s->user_used_ch_count;
+
+    s-> in_ch_layout = s-> user_in_ch_layout;
+    s->out_ch_layout = s->user_out_ch_layout;
+
+    s->int_sample_fmt= s->user_int_sample_fmt;
+
+    s->dither.method = s->user_dither_method;
+
+    if(av_get_channel_layout_nb_channels(s-> in_ch_layout) > SWR_CH_MAX) {
+        av_log(s, AV_LOG_WARNING, "Input channel layout 0x%"PRIx64" is invalid or unsupported.\n", s-> in_ch_layout);
+        s->in_ch_layout = 0;
+    }
+
+    if(av_get_channel_layout_nb_channels(s->out_ch_layout) > SWR_CH_MAX) {
+        av_log(s, AV_LOG_WARNING, "Output channel layout 0x%"PRIx64" is invalid or unsupported.\n", s->out_ch_layout);
+        s->out_ch_layout = 0;
+    }
+
+    switch(s->engine){
+#if CONFIG_LIBSOXR
+        case SWR_ENGINE_SOXR: s->resampler = &swri_soxr_resampler; break;
+#endif
+        case SWR_ENGINE_SWR : s->resampler = &swri_resampler; break;
+        default:
+            av_log(s, AV_LOG_ERROR, "Requested resampling engine is unavailable\n");
+            return AVERROR(EINVAL);
+    }
+
+    if(!s->used_ch_count)
+        s->used_ch_count= s->in.ch_count;
+
+    if(s->used_ch_count && s-> in_ch_layout && s->used_ch_count != av_get_channel_layout_nb_channels(s-> in_ch_layout)){
+        av_log(s, AV_LOG_WARNING, "Input channel layout has a different number of channels than the number of used channels, ignoring layout\n");
+        s-> in_ch_layout= 0;
+    }
+
+    if(!s-> in_ch_layout)
+        s-> in_ch_layout= av_get_default_channel_layout(s->used_ch_count);
+    if(!s->out_ch_layout)
+        s->out_ch_layout= av_get_default_channel_layout(s->out.ch_count);
+
+    s->rematrix= s->out_ch_layout  !=s->in_ch_layout || s->rematrix_volume!=1.0 ||
+                 s->rematrix_custom;
+
+    if(s->int_sample_fmt == AV_SAMPLE_FMT_NONE){
+        if(   av_get_bytes_per_sample(s-> in_sample_fmt) <= 2
+           && av_get_bytes_per_sample(s->out_sample_fmt) <= 2){
+            s->int_sample_fmt= AV_SAMPLE_FMT_S16P;
+        }else if(   av_get_bytes_per_sample(s-> in_sample_fmt) <= 2
+           && !s->rematrix
+           && s->out_sample_rate==s->in_sample_rate
+           && !(s->flags & SWR_FLAG_RESAMPLE)){
+            s->int_sample_fmt= AV_SAMPLE_FMT_S16P;
+        }else if(   av_get_planar_sample_fmt(s-> in_sample_fmt) == AV_SAMPLE_FMT_S32P
+                 && av_get_planar_sample_fmt(s->out_sample_fmt) == AV_SAMPLE_FMT_S32P
+                 && !s->rematrix
+                 && s->out_sample_rate == s->in_sample_rate
+                 && !(s->flags & SWR_FLAG_RESAMPLE)
+                 && s->engine != SWR_ENGINE_SOXR){
+            s->int_sample_fmt= AV_SAMPLE_FMT_S32P;
+        }else if(av_get_bytes_per_sample(s->in_sample_fmt) <= 4){
+            s->int_sample_fmt= AV_SAMPLE_FMT_FLTP;
+        }else{
+            s->int_sample_fmt= AV_SAMPLE_FMT_DBLP;
+        }
+    }
+    av_log(s, AV_LOG_DEBUG, "Using %s internally between filters\n", av_get_sample_fmt_name(s->int_sample_fmt));
+
+    if(   s->int_sample_fmt != AV_SAMPLE_FMT_S16P
+        &&s->int_sample_fmt != AV_SAMPLE_FMT_S32P
+        &&s->int_sample_fmt != AV_SAMPLE_FMT_S64P
+        &&s->int_sample_fmt != AV_SAMPLE_FMT_FLTP
+        &&s->int_sample_fmt != AV_SAMPLE_FMT_DBLP){
+        av_log(s, AV_LOG_ERROR, "Requested sample format %s is not supported internally, s16p/s32p/s64p/fltp/dblp are supported\n", av_get_sample_fmt_name(s->int_sample_fmt));
+        return AVERROR(EINVAL);
+    }
+
+    set_audiodata_fmt(&s-> in, s-> in_sample_fmt);
+    set_audiodata_fmt(&s->out, s->out_sample_fmt);
+
+    if (s->firstpts_in_samples != AV_NOPTS_VALUE) {
+        if (!s->async && s->min_compensation >= FLT_MAX/2)
+            s->async = 1;
+        s->firstpts =
+        s->outpts   = s->firstpts_in_samples * s->out_sample_rate;
+    } else
+        s->firstpts = AV_NOPTS_VALUE;
+
+    if (s->async) {
+        if (s->min_compensation >= FLT_MAX/2)
+            s->min_compensation = 0.001;
+        if (s->async > 1.0001) {
+            s->max_soft_compensation = s->async / (double) s->in_sample_rate;
+        }
+    }
+
+    if (s->out_sample_rate!=s->in_sample_rate || (s->flags & SWR_FLAG_RESAMPLE)){
+        s->resample = s->resampler->init(s->resample, s->out_sample_rate, s->in_sample_rate, s->filter_size, s->phase_shift, s->linear_interp, s->cutoff, s->int_sample_fmt, s->filter_type, s->kaiser_beta, s->precision, s->cheby, s->exact_rational);
+        if (!s->resample) {
+            av_log(s, AV_LOG_ERROR, "Failed to initialize resampler\n");
+            return AVERROR(ENOMEM);
+        }
+    }else
+        s->resampler->free(&s->resample);
+    if(    s->int_sample_fmt != AV_SAMPLE_FMT_S16P
+        && s->int_sample_fmt != AV_SAMPLE_FMT_S32P
+        && s->int_sample_fmt != AV_SAMPLE_FMT_FLTP
+        && s->int_sample_fmt != AV_SAMPLE_FMT_DBLP
+        && s->resample){
+        av_log(s, AV_LOG_ERROR, "Resampling only supported with internal s16p/s32p/fltp/dblp\n");
+        ret = AVERROR(EINVAL);
+        goto fail;
+    }
+
+#define RSC 1 //FIXME finetune
+    if(!s-> in.ch_count)
+        s-> in.ch_count= av_get_channel_layout_nb_channels(s-> in_ch_layout);
+    if(!s->used_ch_count)
+        s->used_ch_count= s->in.ch_count;
+    if(!s->out.ch_count)
+        s->out.ch_count= av_get_channel_layout_nb_channels(s->out_ch_layout);
+
+    if(!s-> in.ch_count){
+        av_assert0(!s->in_ch_layout);
+        av_log(s, AV_LOG_ERROR, "Input channel count and layout are unset\n");
+        ret = AVERROR(EINVAL);
+        goto fail;
+    }
+
+    av_get_channel_layout_string(l1, sizeof(l1), s-> in.ch_count, s-> in_ch_layout);
+    av_get_channel_layout_string(l2, sizeof(l2), s->out.ch_count, s->out_ch_layout);
+    if (s->out_ch_layout && s->out.ch_count != av_get_channel_layout_nb_channels(s->out_ch_layout)) {
+        av_log(s, AV_LOG_ERROR, "Output channel layout %s mismatches specified channel count %d\n", l2, s->out.ch_count);
+        ret = AVERROR(EINVAL);
+        goto fail;
+    }
+    if (s->in_ch_layout && s->used_ch_count != av_get_channel_layout_nb_channels(s->in_ch_layout)) {
+        av_log(s, AV_LOG_ERROR, "Input channel layout %s mismatches specified channel count %d\n", l1, s->used_ch_count);
+        ret = AVERROR(EINVAL);
+        goto fail;
+    }
+
+    if ((!s->out_ch_layout || !s->in_ch_layout) && s->used_ch_count != s->out.ch_count && !s->rematrix_custom) {
+        av_log(s, AV_LOG_ERROR, "Rematrix is needed between %s and %s "
+               "but there is not enough information to do it\n", l1, l2);
+        ret = AVERROR(EINVAL);
+        goto fail;
+    }
+
+av_assert0(s->used_ch_count);
+av_assert0(s->out.ch_count);
+    s->resample_first= RSC*s->out.ch_count/s->used_ch_count - RSC < s->out_sample_rate/(float)s-> in_sample_rate - 1.0;
+
+    s->in_buffer= s->in;
+    s->silence  = s->in;
+    s->drop_temp= s->out;
+
+    if ((ret = swri_dither_init(s, s->out_sample_fmt, s->int_sample_fmt)) < 0)
+        goto fail;
+
+    if(!s->resample && !s->rematrix && !s->channel_map && !s->dither.method){
+        s->full_convert = swri_audio_convert_alloc(s->out_sample_fmt,
+                                                   s-> in_sample_fmt, s-> in.ch_count, NULL, 0);
+        return 0;
+    }
+
+    s->in_convert = swri_audio_convert_alloc(s->int_sample_fmt,
+                                             s-> in_sample_fmt, s->used_ch_count, s->channel_map, 0);
+    s->out_convert= swri_audio_convert_alloc(s->out_sample_fmt,
+                                             s->int_sample_fmt, s->out.ch_count, NULL, 0);
+
+    if (!s->in_convert || !s->out_convert) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    s->postin= s->in;
+    s->preout= s->out;
+    s->midbuf= s->in;
+
+    if(s->channel_map){
+        s->postin.ch_count=
+        s->midbuf.ch_count= s->used_ch_count;
+        if(s->resample)
+            s->in_buffer.ch_count= s->used_ch_count;
+    }
+    if(!s->resample_first){
+        s->midbuf.ch_count= s->out.ch_count;
+        if(s->resample)
+            s->in_buffer.ch_count = s->out.ch_count;
+    }
+
+    set_audiodata_fmt(&s->postin, s->int_sample_fmt);
+    set_audiodata_fmt(&s->midbuf, s->int_sample_fmt);
+    set_audiodata_fmt(&s->preout, s->int_sample_fmt);
+
+    if(s->resample){
+        set_audiodata_fmt(&s->in_buffer, s->int_sample_fmt);
+    }
+
+    av_assert0(!s->preout.count);
+    s->dither.noise = s->preout;
+    s->dither.temp  = s->preout;
+    if (s->dither.method > SWR_DITHER_NS) {
+        s->dither.noise.bps = 4;
+        s->dither.noise.fmt = AV_SAMPLE_FMT_FLTP;
+        s->dither.noise_scale = 1;
+    }
+
+    if(s->rematrix || s->dither.method) {
+        ret = swri_rematrix_init(s);
+        if (ret < 0)
+            goto fail;
+    }
+
+    return 0;
+fail:
+    swr_close(s);
+    return ret;
+
+}
+
+int swri_realloc_audio(AudioData *a, int count){
+    int i, countb;
+    AudioData old;
+
+    if(count < 0 || count > INT_MAX/2/a->bps/a->ch_count)
+        return AVERROR(EINVAL);
+
+    if(a->count >= count)
+        return 0;
+
+    count*=2;
+
+    countb= FFALIGN(count*a->bps, ALIGN);
+    old= *a;
+
+    av_assert0(a->bps);
+    av_assert0(a->ch_count);
+
+    a->data= av_mallocz_array(countb, a->ch_count);
+    if(!a->data)
+        return AVERROR(ENOMEM);
+    for(i=0; i<a->ch_count; i++){
+        a->ch[i]= a->data + i*(a->planar ? countb : a->bps);
+        if(a->count && a->planar) memcpy(a->ch[i], old.ch[i], a->count*a->bps);
+    }
+    if(a->count && !a->planar) memcpy(a->ch[0], old.ch[0], a->count*a->ch_count*a->bps);
+    av_freep(&old.data);
+    a->count= count;
+
+    return 1;
+}
+
+static void copy(AudioData *out, AudioData *in,
+                 int count){
+    av_assert0(out->planar == in->planar);
+    av_assert0(out->bps == in->bps);
+    av_assert0(out->ch_count == in->ch_count);
+    if(out->planar){
+        int ch;
+        for(ch=0; ch<out->ch_count; ch++)
+            memcpy(out->ch[ch], in->ch[ch], count*out->bps);
+    }else
+        memcpy(out->ch[0], in->ch[0], count*out->ch_count*out->bps);
+}
+
+static void fill_audiodata(AudioData *out, uint8_t *in_arg [SWR_CH_MAX]){
+    int i;
+    if(!in_arg){
+        memset(out->ch, 0, sizeof(out->ch));
+    }else if(out->planar){
+        for(i=0; i<out->ch_count; i++)
+            out->ch[i]= in_arg[i];
+    }else{
+        for(i=0; i<out->ch_count; i++)
+            out->ch[i]= in_arg[0] + i*out->bps;
+    }
+}
+
+static void reversefill_audiodata(AudioData *out, uint8_t *in_arg [SWR_CH_MAX]){
+    int i;
+    if(out->planar){
+        for(i=0; i<out->ch_count; i++)
+            in_arg[i]= out->ch[i];
+    }else{
+        in_arg[0]= out->ch[0];
+    }
+}
+
+/**
+ *
+ * out may be equal in.
+ */
+static void buf_set(AudioData *out, AudioData *in, int count){
+    int ch;
+    if(in->planar){
+        for(ch=0; ch<out->ch_count; ch++)
+            out->ch[ch]= in->ch[ch] + count*out->bps;
+    }else{
+        for(ch=out->ch_count-1; ch>=0; ch--)
+            out->ch[ch]= in->ch[0] + (ch + count*out->ch_count) * out->bps;
+    }
+}
+
+/**
+ *
+ * @return number of samples output per channel
+ */
+static int resample(SwrContext *s, AudioData *out_param, int out_count,
+                             const AudioData * in_param, int in_count){
+    AudioData in, out, tmp;
+    int ret_sum=0;
+    int border=0;
+    int padless = ARCH_X86 && s->engine == SWR_ENGINE_SWR ? 7 : 0;
+
+    av_assert1(s->in_buffer.ch_count == in_param->ch_count);
+    av_assert1(s->in_buffer.planar   == in_param->planar);
+    av_assert1(s->in_buffer.fmt      == in_param->fmt);
+
+    tmp=out=*out_param;
+    in =  *in_param;
+
+    border = s->resampler->invert_initial_buffer(s->resample, &s->in_buffer,
+                 &in, in_count, &s->in_buffer_index, &s->in_buffer_count);
+    if (border == INT_MAX) {
+        return 0;
+    } else if (border < 0) {
+        return border;
+    } else if (border) {
+        buf_set(&in, &in, border);
+        in_count -= border;
+        s->resample_in_constraint = 0;
+    }
+
+    do{
+        int ret, size, consumed;
+        if(!s->resample_in_constraint && s->in_buffer_count){
+            buf_set(&tmp, &s->in_buffer, s->in_buffer_index);
+            ret= s->resampler->multiple_resample(s->resample, &out, out_count, &tmp, s->in_buffer_count, &consumed);
+            out_count -= ret;
+            ret_sum += ret;
+            buf_set(&out, &out, ret);
+            s->in_buffer_count -= consumed;
+            s->in_buffer_index += consumed;
+
+            if(!in_count)
+                break;
+            if(s->in_buffer_count <= border){
+                buf_set(&in, &in, -s->in_buffer_count);
+                in_count += s->in_buffer_count;
+                s->in_buffer_count=0;
+                s->in_buffer_index=0;
+                border = 0;
+            }
+        }
+
+        if((s->flushed || in_count > padless) && !s->in_buffer_count){
+            s->in_buffer_index=0;
+            ret= s->resampler->multiple_resample(s->resample, &out, out_count, &in, FFMAX(in_count-padless, 0), &consumed);
+            out_count -= ret;
+            ret_sum += ret;
+            buf_set(&out, &out, ret);
+            in_count -= consumed;
+            buf_set(&in, &in, consumed);
+        }
+
+        //TODO is this check sane considering the advanced copy avoidance below
+        size= s->in_buffer_index + s->in_buffer_count + in_count;
+        if(   size > s->in_buffer.count
+           && s->in_buffer_count + in_count <= s->in_buffer_index){
+            buf_set(&tmp, &s->in_buffer, s->in_buffer_index);
+            copy(&s->in_buffer, &tmp, s->in_buffer_count);
+            s->in_buffer_index=0;
+        }else
+            if((ret=swri_realloc_audio(&s->in_buffer, size)) < 0)
+                return ret;
+
+        if(in_count){
+            int count= in_count;
+            if(s->in_buffer_count && s->in_buffer_count+2 < count && out_count) count= s->in_buffer_count+2;
+
+            buf_set(&tmp, &s->in_buffer, s->in_buffer_index + s->in_buffer_count);
+            copy(&tmp, &in, /*in_*/count);
+            s->in_buffer_count += count;
+            in_count -= count;
+            border += count;
+            buf_set(&in, &in, count);
+            s->resample_in_constraint= 0;
+            if(s->in_buffer_count != count || in_count)
+                continue;
+            if (padless) {
+                padless = 0;
+                continue;
+            }
+        }
+        break;
+    }while(1);
+
+    s->resample_in_constraint= !!out_count;
+
+    return ret_sum;
+}
+
+static int swr_convert_internal(struct SwrContext *s, AudioData *out, int out_count,
+                                                      AudioData *in , int  in_count){
+    AudioData *postin, *midbuf, *preout;
+    int ret/*, in_max*/;
+    AudioData preout_tmp, midbuf_tmp;
+
+    if(s->full_convert){
+        av_assert0(!s->resample);
+        swri_audio_convert(s->full_convert, out, in, in_count);
+        return out_count;
+    }
+
+//     in_max= out_count*(int64_t)s->in_sample_rate / s->out_sample_rate + resample_filter_taps;
+//     in_count= FFMIN(in_count, in_in + 2 - s->hist_buffer_count);
+
+    if((ret=swri_realloc_audio(&s->postin, in_count))<0)
+        return ret;
+    if(s->resample_first){
+        av_assert0(s->midbuf.ch_count == s->used_ch_count);
+        if((ret=swri_realloc_audio(&s->midbuf, out_count))<0)
+            return ret;
+    }else{
+        av_assert0(s->midbuf.ch_count ==  s->out.ch_count);
+        if((ret=swri_realloc_audio(&s->midbuf,  in_count))<0)
+            return ret;
+    }
+    if((ret=swri_realloc_audio(&s->preout, out_count))<0)
+        return ret;
+
+    postin= &s->postin;
+
+    midbuf_tmp= s->midbuf;
+    midbuf= &midbuf_tmp;
+    preout_tmp= s->preout;
+    preout= &preout_tmp;
+
+    if(s->int_sample_fmt == s-> in_sample_fmt && s->in.planar && !s->channel_map)
+        postin= in;
+
+    if(s->resample_first ? !s->resample : !s->rematrix)
+        midbuf= postin;
+
+    if(s->resample_first ? !s->rematrix : !s->resample)
+        preout= midbuf;
+
+    if(s->int_sample_fmt == s->out_sample_fmt && s->out.planar
+       && !(s->out_sample_fmt==AV_SAMPLE_FMT_S32P && (s->dither.output_sample_bits&31))){
+        if(preout==in){
+            out_count= FFMIN(out_count, in_count); //TODO check at the end if this is needed or redundant
+            av_assert0(s->in.planar); //we only support planar internally so it has to be, we support copying non planar though
+            copy(out, in, out_count);
+            return out_count;
+        }
+        else if(preout==postin) preout= midbuf= postin= out;
+        else if(preout==midbuf) preout= midbuf= out;
+        else                    preout= out;
+    }
+
+    if(in != postin){
+        swri_audio_convert(s->in_convert, postin, in, in_count);
+    }
+
+    if(s->resample_first){
+        if(postin != midbuf)
+            out_count= resample(s, midbuf, out_count, postin, in_count);
+        if(midbuf != preout)
+            swri_rematrix(s, preout, midbuf, out_count, preout==out);
+    }else{
+        if(postin != midbuf)
+            swri_rematrix(s, midbuf, postin, in_count, midbuf==out);
+        if(midbuf != preout)
+            out_count= resample(s, preout, out_count, midbuf, in_count);
+    }
+
+    if(preout != out && out_count){
+        AudioData *conv_src = preout;
+        if(s->dither.method){
+            int ch;
+            int dither_count= FFMAX(out_count, 1<<16);
+
+            if (preout == in) {
+                conv_src = &s->dither.temp;
+                if((ret=swri_realloc_audio(&s->dither.temp, dither_count))<0)
+                    return ret;
+            }
+
+            if((ret=swri_realloc_audio(&s->dither.noise, dither_count))<0)
+                return ret;
+            if(ret)
+                for(ch=0; ch<s->dither.noise.ch_count; ch++)
+                    if((ret=swri_get_dither(s, s->dither.noise.ch[ch], s->dither.noise.count, (12345678913579ULL*ch + 3141592) % 2718281828U, s->dither.noise.fmt))<0)
+                        return ret;
+            av_assert0(s->dither.noise.ch_count == preout->ch_count);
+
+            if(s->dither.noise_pos + out_count > s->dither.noise.count)
+                s->dither.noise_pos = 0;
+
+            if (s->dither.method < SWR_DITHER_NS){
+                if (s->mix_2_1_simd) {
+                    int len1= out_count&~15;
+                    int off = len1 * preout->bps;
+
+                    if(len1)
+                        for(ch=0; ch<preout->ch_count; ch++)
+                            s->mix_2_1_simd(conv_src->ch[ch], preout->ch[ch], s->dither.noise.ch[ch] + s->dither.noise.bps * s->dither.noise_pos, s->native_simd_one, 0, 0, len1);
+                    if(out_count != len1)
+                        for(ch=0; ch<preout->ch_count; ch++)
+                            s->mix_2_1_f(conv_src->ch[ch] + off, preout->ch[ch] + off, s->dither.noise.ch[ch] + s->dither.noise.bps * s->dither.noise_pos + off, s->native_one, 0, 0, out_count - len1);
+                } else {
+                    for(ch=0; ch<preout->ch_count; ch++)
+                        s->mix_2_1_f(conv_src->ch[ch], preout->ch[ch], s->dither.noise.ch[ch] + s->dither.noise.bps * s->dither.noise_pos, s->native_one, 0, 0, out_count);
+                }
+            } else {
+                switch(s->int_sample_fmt) {
+                case AV_SAMPLE_FMT_S16P :swri_noise_shaping_int16(s, conv_src, preout, &s->dither.noise, out_count); break;
+                case AV_SAMPLE_FMT_S32P :swri_noise_shaping_int32(s, conv_src, preout, &s->dither.noise, out_count); break;
+                case AV_SAMPLE_FMT_FLTP :swri_noise_shaping_float(s, conv_src, preout, &s->dither.noise, out_count); break;
+                case AV_SAMPLE_FMT_DBLP :swri_noise_shaping_double(s,conv_src, preout, &s->dither.noise, out_count); break;
+                }
+            }
+            s->dither.noise_pos += out_count;
+        }
+//FIXME packed doesn't need more than 1 chan here!
+        swri_audio_convert(s->out_convert, out, conv_src, out_count);
+    }
+    return out_count;
+}
+
+int swr_is_initialized(struct SwrContext *s) {
+    return !!s->in_buffer.ch_count;
+}
+
+int attribute_align_arg swr_convert(struct SwrContext *s, uint8_t *out_arg[SWR_CH_MAX], int out_count,
+                                                    const uint8_t *in_arg [SWR_CH_MAX], int  in_count){
+    AudioData * in= &s->in;
+    AudioData *out= &s->out;
+    int av_unused max_output;
+
+    if (!swr_is_initialized(s)) {
+        av_log(s, AV_LOG_ERROR, "Context has not been initialized\n");
+        return AVERROR(EINVAL);
+    }
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL >1
+    max_output = swr_get_out_samples(s, in_count);
+#endif
+
+    while(s->drop_output > 0){
+        int ret;
+        uint8_t *tmp_arg[SWR_CH_MAX];
+#define MAX_DROP_STEP 16384
+        if((ret=swri_realloc_audio(&s->drop_temp, FFMIN(s->drop_output, MAX_DROP_STEP)))<0)
+            return ret;
+
+        reversefill_audiodata(&s->drop_temp, tmp_arg);
+        s->drop_output *= -1; //FIXME find a less hackish solution
+        ret = swr_convert(s, tmp_arg, FFMIN(-s->drop_output, MAX_DROP_STEP), in_arg, in_count); //FIXME optimize but this is as good as never called so maybe it doesn't matter
+        s->drop_output *= -1;
+        in_count = 0;
+        if(ret>0) {
+            s->drop_output -= ret;
+            if (!s->drop_output && !out_arg)
+                return 0;
+            continue;
+        }
+
+        av_assert0(s->drop_output);
+        return 0;
+    }
+
+    if(!in_arg){
+        if(s->resample){
+            if (!s->flushed)
+                s->resampler->flush(s);
+            s->resample_in_constraint = 0;
+            s->flushed = 1;
+        }else if(!s->in_buffer_count){
+            return 0;
+        }
+    }else
+        fill_audiodata(in ,  (void*)in_arg);
+
+    fill_audiodata(out, out_arg);
+
+    if(s->resample){
+        int ret = swr_convert_internal(s, out, out_count, in, in_count);
+        if(ret>0 && !s->drop_output)
+            s->outpts += ret * (int64_t)s->in_sample_rate;
+
+        av_assert2(max_output < 0 || ret < 0 || ret <= max_output);
+
+        return ret;
+    }else{
+        AudioData tmp= *in;
+        int ret2=0;
+        int ret, size;
+        size = FFMIN(out_count, s->in_buffer_count);
+        if(size){
+            buf_set(&tmp, &s->in_buffer, s->in_buffer_index);
+            ret= swr_convert_internal(s, out, size, &tmp, size);
+            if(ret<0)
+                return ret;
+            ret2= ret;
+            s->in_buffer_count -= ret;
+            s->in_buffer_index += ret;
+            buf_set(out, out, ret);
+            out_count -= ret;
+            if(!s->in_buffer_count)
+                s->in_buffer_index = 0;
+        }
+
+        if(in_count){
+            size= s->in_buffer_index + s->in_buffer_count + in_count - out_count;
+
+            if(in_count > out_count) { //FIXME move after swr_convert_internal
+                if(   size > s->in_buffer.count
+                && s->in_buffer_count + in_count - out_count <= s->in_buffer_index){
+                    buf_set(&tmp, &s->in_buffer, s->in_buffer_index);
+                    copy(&s->in_buffer, &tmp, s->in_buffer_count);
+                    s->in_buffer_index=0;
+                }else
+                    if((ret=swri_realloc_audio(&s->in_buffer, size)) < 0)
+                        return ret;
+            }
+
+            if(out_count){
+                size = FFMIN(in_count, out_count);
+                ret= swr_convert_internal(s, out, size, in, size);
+                if(ret<0)
+                    return ret;
+                buf_set(in, in, ret);
+                in_count -= ret;
+                ret2 += ret;
+            }
+            if(in_count){
+                buf_set(&tmp, &s->in_buffer, s->in_buffer_index + s->in_buffer_count);
+                copy(&tmp, in, in_count);
+                s->in_buffer_count += in_count;
+            }
+        }
+        if(ret2>0 && !s->drop_output)
+            s->outpts += ret2 * (int64_t)s->in_sample_rate;
+        av_assert2(max_output < 0 || ret2 < 0 || ret2 <= max_output);
+        return ret2;
+    }
+}
+
+int swr_drop_output(struct SwrContext *s, int count){
+    const uint8_t *tmp_arg[SWR_CH_MAX];
+    s->drop_output += count;
+
+    if(s->drop_output <= 0)
+        return 0;
+
+    av_log(s, AV_LOG_VERBOSE, "discarding %d audio samples\n", count);
+    return swr_convert(s, NULL, s->drop_output, tmp_arg, 0);
+}
+
+int swr_inject_silence(struct SwrContext *s, int count){
+    int ret, i;
+    uint8_t *tmp_arg[SWR_CH_MAX];
+
+    if(count <= 0)
+        return 0;
+
+#define MAX_SILENCE_STEP 16384
+    while (count > MAX_SILENCE_STEP) {
+        if ((ret = swr_inject_silence(s, MAX_SILENCE_STEP)) < 0)
+            return ret;
+        count -= MAX_SILENCE_STEP;
+    }
+
+    if((ret=swri_realloc_audio(&s->silence, count))<0)
+        return ret;
+
+    if(s->silence.planar) for(i=0; i<s->silence.ch_count; i++) {
+        memset(s->silence.ch[i], s->silence.bps==1 ? 0x80 : 0, count*s->silence.bps);
+    } else
+        memset(s->silence.ch[0], s->silence.bps==1 ? 0x80 : 0, count*s->silence.bps*s->silence.ch_count);
+
+    reversefill_audiodata(&s->silence, tmp_arg);
+    av_log(s, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", count);
+    ret = swr_convert(s, NULL, 0, (const uint8_t**)tmp_arg, count);
+    return ret;
+}
+
+int64_t swr_get_delay(struct SwrContext *s, int64_t base){
+    if (s->resampler && s->resample){
+        return s->resampler->get_delay(s, base);
+    }else{
+        return (s->in_buffer_count*base + (s->in_sample_rate>>1))/ s->in_sample_rate;
+    }
+}
+
+int swr_get_out_samples(struct SwrContext *s, int in_samples)
+{
+    int64_t out_samples;
+
+    if (in_samples < 0)
+        return AVERROR(EINVAL);
+
+    if (s->resampler && s->resample) {
+        if (!s->resampler->get_out_samples)
+            return AVERROR(ENOSYS);
+        out_samples = s->resampler->get_out_samples(s, in_samples);
+    } else {
+        out_samples = s->in_buffer_count + in_samples;
+        av_assert0(s->out_sample_rate == s->in_sample_rate);
+    }
+
+    if (out_samples > INT_MAX)
+        return AVERROR(EINVAL);
+
+    return out_samples;
+}
+
+int swr_set_compensation(struct SwrContext *s, int sample_delta, int compensation_distance){
+    int ret;
+
+    if (!s || compensation_distance < 0)
+        return AVERROR(EINVAL);
+    if (!compensation_distance && sample_delta)
+        return AVERROR(EINVAL);
+    if (!s->resample) {
+        s->flags |= SWR_FLAG_RESAMPLE;
+        ret = swr_init(s);
+        if (ret < 0)
+            return ret;
+    }
+    if (!s->resampler->set_compensation){
+        return AVERROR(EINVAL);
+    }else{
+        return s->resampler->set_compensation(s->resample, sample_delta, compensation_distance);
+    }
+}
+
+int64_t swr_next_pts(struct SwrContext *s, int64_t pts){
+    if(pts == INT64_MIN)
+        return s->outpts;
+
+    if (s->firstpts == AV_NOPTS_VALUE)
+        s->outpts = s->firstpts = pts;
+
+    if(s->min_compensation >= FLT_MAX) {
+        return (s->outpts = pts - swr_get_delay(s, s->in_sample_rate * (int64_t)s->out_sample_rate));
+    } else {
+        int64_t delta = pts - swr_get_delay(s, s->in_sample_rate * (int64_t)s->out_sample_rate) - s->outpts + s->drop_output*(int64_t)s->in_sample_rate;
+        double fdelta = delta /(double)(s->in_sample_rate * (int64_t)s->out_sample_rate);
+
+        if(fabs(fdelta) > s->min_compensation) {
+            if(s->outpts == s->firstpts || fabs(fdelta) > s->min_hard_compensation){
+                int ret;
+                if(delta > 0) ret = swr_inject_silence(s,  delta / s->out_sample_rate);
+                else          ret = swr_drop_output   (s, -delta / s-> in_sample_rate);
+                if(ret<0){
+                    av_log(s, AV_LOG_ERROR, "Failed to compensate for timestamp delta of %f\n", fdelta);
+                }
+            } else if(s->soft_compensation_duration && s->max_soft_compensation) {
+                int duration = s->out_sample_rate * s->soft_compensation_duration;
+                double max_soft_compensation = s->max_soft_compensation / (s->max_soft_compensation < 0 ? -s->in_sample_rate : 1);
+                int comp = av_clipf(fdelta, -max_soft_compensation, max_soft_compensation) * duration ;
+                av_log(s, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n", fdelta, comp, duration);
+                swr_set_compensation(s, comp, duration);
+            }
+        }
+
+        return s->outpts;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresample.h b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresample.h
new file mode 100644
index 000000000..c7b84fbca
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresample.h
@@ -0,0 +1,579 @@
+/*
+ * Copyright (C) 2011-2013 Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef SWRESAMPLE_SWRESAMPLE_H
+#define SWRESAMPLE_SWRESAMPLE_H
+
+/**
+ * @file
+ * @ingroup lswr
+ * libswresample public header
+ */
+
+/**
+ * @defgroup lswr libswresample
+ * @{
+ *
+ * Audio resampling, sample format conversion and mixing library.
+ *
+ * Interaction with lswr is done through SwrContext, which is
+ * allocated with swr_alloc() or swr_alloc_set_opts(). It is opaque, so all parameters
+ * must be set with the @ref avoptions API.
+ *
+ * The first thing you will need to do in order to use lswr is to allocate
+ * SwrContext. This can be done with swr_alloc() or swr_alloc_set_opts(). If you
+ * are using the former, you must set options through the @ref avoptions API.
+ * The latter function provides the same feature, but it allows you to set some
+ * common options in the same statement.
+ *
+ * For example the following code will setup conversion from planar float sample
+ * format to interleaved signed 16-bit integer, downsampling from 48kHz to
+ * 44.1kHz and downmixing from 5.1 channels to stereo (using the default mixing
+ * matrix). This is using the swr_alloc() function.
+ * @code
+ * SwrContext *swr = swr_alloc();
+ * av_opt_set_channel_layout(swr, "in_channel_layout",  AV_CH_LAYOUT_5POINT1, 0);
+ * av_opt_set_channel_layout(swr, "out_channel_layout", AV_CH_LAYOUT_STEREO,  0);
+ * av_opt_set_int(swr, "in_sample_rate",     48000,                0);
+ * av_opt_set_int(swr, "out_sample_rate",    44100,                0);
+ * av_opt_set_sample_fmt(swr, "in_sample_fmt",  AV_SAMPLE_FMT_FLTP, 0);
+ * av_opt_set_sample_fmt(swr, "out_sample_fmt", AV_SAMPLE_FMT_S16,  0);
+ * @endcode
+ *
+ * The same job can be done using swr_alloc_set_opts() as well:
+ * @code
+ * SwrContext *swr = swr_alloc_set_opts(NULL,  // we're allocating a new context
+ *                       AV_CH_LAYOUT_STEREO,  // out_ch_layout
+ *                       AV_SAMPLE_FMT_S16,    // out_sample_fmt
+ *                       44100,                // out_sample_rate
+ *                       AV_CH_LAYOUT_5POINT1, // in_ch_layout
+ *                       AV_SAMPLE_FMT_FLTP,   // in_sample_fmt
+ *                       48000,                // in_sample_rate
+ *                       0,                    // log_offset
+ *                       NULL);                // log_ctx
+ * @endcode
+ *
+ * Once all values have been set, it must be initialized with swr_init(). If
+ * you need to change the conversion parameters, you can change the parameters
+ * using @ref AVOptions, as described above in the first example; or by using
+ * swr_alloc_set_opts(), but with the first argument the allocated context.
+ * You must then call swr_init() again.
+ *
+ * The conversion itself is done by repeatedly calling swr_convert().
+ * Note that the samples may get buffered in swr if you provide insufficient
+ * output space or if sample rate conversion is done, which requires "future"
+ * samples. Samples that do not require future input can be retrieved at any
+ * time by using swr_convert() (in_count can be set to 0).
+ * At the end of conversion the resampling buffer can be flushed by calling
+ * swr_convert() with NULL in and 0 in_count.
+ *
+ * The samples used in the conversion process can be managed with the libavutil
+ * @ref lavu_sampmanip "samples manipulation" API, including av_samples_alloc()
+ * function used in the following example.
+ *
+ * The delay between input and output, can at any time be found by using
+ * swr_get_delay().
+ *
+ * The following code demonstrates the conversion loop assuming the parameters
+ * from above and caller-defined functions get_input() and handle_output():
+ * @code
+ * uint8_t **input;
+ * int in_samples;
+ *
+ * while (get_input(&input, &in_samples)) {
+ *     uint8_t *output;
+ *     int out_samples = av_rescale_rnd(swr_get_delay(swr, 48000) +
+ *                                      in_samples, 44100, 48000, AV_ROUND_UP);
+ *     av_samples_alloc(&output, NULL, 2, out_samples,
+ *                      AV_SAMPLE_FMT_S16, 0);
+ *     out_samples = swr_convert(swr, &output, out_samples,
+ *                                      input, in_samples);
+ *     handle_output(output, out_samples);
+ *     av_freep(&output);
+ * }
+ * @endcode
+ *
+ * When the conversion is finished, the conversion
+ * context and everything associated with it must be freed with swr_free().
+ * A swr_close() function is also available, but it exists mainly for
+ * compatibility with libavresample, and is not required to be called.
+ *
+ * There will be no memory leak if the data is not completely flushed before
+ * swr_free().
+ */
+
+#include <stdint.h>
+#include "libavutil/channel_layout.h"
+#include "libavutil/frame.h"
+#include "libavutil/samplefmt.h"
+
+#include "libswresample/version.h"
+
+/**
+ * @name Option constants
+ * These constants are used for the @ref avoptions interface for lswr.
+ * @{
+ *
+ */
+
+#define SWR_FLAG_RESAMPLE 1 ///< Force resampling even if equal sample rate
+//TODO use int resample ?
+//long term TODO can we enable this dynamically?
+
+/** Dithering algorithms */
+enum SwrDitherType {
+    SWR_DITHER_NONE = 0,
+    SWR_DITHER_RECTANGULAR,
+    SWR_DITHER_TRIANGULAR,
+    SWR_DITHER_TRIANGULAR_HIGHPASS,
+
+    SWR_DITHER_NS = 64,         ///< not part of API/ABI
+    SWR_DITHER_NS_LIPSHITZ,
+    SWR_DITHER_NS_F_WEIGHTED,
+    SWR_DITHER_NS_MODIFIED_E_WEIGHTED,
+    SWR_DITHER_NS_IMPROVED_E_WEIGHTED,
+    SWR_DITHER_NS_SHIBATA,
+    SWR_DITHER_NS_LOW_SHIBATA,
+    SWR_DITHER_NS_HIGH_SHIBATA,
+    SWR_DITHER_NB,              ///< not part of API/ABI
+};
+
+/** Resampling Engines */
+enum SwrEngine {
+    SWR_ENGINE_SWR,             /**< SW Resampler */
+    SWR_ENGINE_SOXR,            /**< SoX Resampler */
+    SWR_ENGINE_NB,              ///< not part of API/ABI
+};
+
+/** Resampling Filter Types */
+enum SwrFilterType {
+    SWR_FILTER_TYPE_CUBIC,              /**< Cubic */
+    SWR_FILTER_TYPE_BLACKMAN_NUTTALL,   /**< Blackman Nuttall windowed sinc */
+    SWR_FILTER_TYPE_KAISER,             /**< Kaiser windowed sinc */
+};
+
+/**
+ * @}
+ */
+
+/**
+ * The libswresample context. Unlike libavcodec and libavformat, this structure
+ * is opaque. This means that if you would like to set options, you must use
+ * the @ref avoptions API and cannot directly set values to members of the
+ * structure.
+ */
+typedef struct SwrContext SwrContext;
+
+/**
+ * Get the AVClass for SwrContext. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ * @return the AVClass of SwrContext
+ */
+const AVClass *swr_get_class(void);
+
+/**
+ * @name SwrContext constructor functions
+ * @{
+ */
+
+/**
+ * Allocate SwrContext.
+ *
+ * If you use this function you will need to set the parameters (manually or
+ * with swr_alloc_set_opts()) before calling swr_init().
+ *
+ * @see swr_alloc_set_opts(), swr_init(), swr_free()
+ * @return NULL on error, allocated context otherwise
+ */
+struct SwrContext *swr_alloc(void);
+
+/**
+ * Initialize context after user parameters have been set.
+ * @note The context must be configured using the AVOption API.
+ *
+ * @see av_opt_set_int()
+ * @see av_opt_set_dict()
+ *
+ * @param[in,out]   s Swr context to initialize
+ * @return AVERROR error code in case of failure.
+ */
+int swr_init(struct SwrContext *s);
+
+/**
+ * Check whether an swr context has been initialized or not.
+ *
+ * @param[in]       s Swr context to check
+ * @see swr_init()
+ * @return positive if it has been initialized, 0 if not initialized
+ */
+int swr_is_initialized(struct SwrContext *s);
+
+/**
+ * Allocate SwrContext if needed and set/reset common parameters.
+ *
+ * This function does not require s to be allocated with swr_alloc(). On the
+ * other hand, swr_alloc() can use swr_alloc_set_opts() to set the parameters
+ * on the allocated context.
+ *
+ * @param s               existing Swr context if available, or NULL if not
+ * @param out_ch_layout   output channel layout (AV_CH_LAYOUT_*)
+ * @param out_sample_fmt  output sample format (AV_SAMPLE_FMT_*).
+ * @param out_sample_rate output sample rate (frequency in Hz)
+ * @param in_ch_layout    input channel layout (AV_CH_LAYOUT_*)
+ * @param in_sample_fmt   input sample format (AV_SAMPLE_FMT_*).
+ * @param in_sample_rate  input sample rate (frequency in Hz)
+ * @param log_offset      logging level offset
+ * @param log_ctx         parent logging context, can be NULL
+ *
+ * @see swr_init(), swr_free()
+ * @return NULL on error, allocated context otherwise
+ */
+struct SwrContext *swr_alloc_set_opts(struct SwrContext *s,
+                                      int64_t out_ch_layout, enum AVSampleFormat out_sample_fmt, int out_sample_rate,
+                                      int64_t  in_ch_layout, enum AVSampleFormat  in_sample_fmt, int  in_sample_rate,
+                                      int log_offset, void *log_ctx);
+
+/**
+ * @}
+ *
+ * @name SwrContext destructor functions
+ * @{
+ */
+
+/**
+ * Free the given SwrContext and set the pointer to NULL.
+ *
+ * @param[in] s a pointer to a pointer to Swr context
+ */
+void swr_free(struct SwrContext **s);
+
+/**
+ * Closes the context so that swr_is_initialized() returns 0.
+ *
+ * The context can be brought back to life by running swr_init(),
+ * swr_init() can also be used without swr_close().
+ * This function is mainly provided for simplifying the usecase
+ * where one tries to support libavresample and libswresample.
+ *
+ * @param[in,out] s Swr context to be closed
+ */
+void swr_close(struct SwrContext *s);
+
+/**
+ * @}
+ *
+ * @name Core conversion functions
+ * @{
+ */
+
+/** Convert audio.
+ *
+ * in and in_count can be set to 0 to flush the last few samples out at the
+ * end.
+ *
+ * If more input is provided than output space, then the input will be buffered.
+ * You can avoid this buffering by using swr_get_out_samples() to retrieve an
+ * upper bound on the required number of output samples for the given number of
+ * input samples. Conversion will run directly without copying whenever possible.
+ *
+ * @param s         allocated Swr context, with parameters set
+ * @param out       output buffers, only the first one need be set in case of packed audio
+ * @param out_count amount of space available for output in samples per channel
+ * @param in        input buffers, only the first one need to be set in case of packed audio
+ * @param in_count  number of input samples available in one channel
+ *
+ * @return number of samples output per channel, negative value on error
+ */
+int swr_convert(struct SwrContext *s, uint8_t **out, int out_count,
+                                const uint8_t **in , int in_count);
+
+/**
+ * Convert the next timestamp from input to output
+ * timestamps are in 1/(in_sample_rate * out_sample_rate) units.
+ *
+ * @note There are 2 slightly differently behaving modes.
+ *       @li When automatic timestamp compensation is not used, (min_compensation >= FLT_MAX)
+ *              in this case timestamps will be passed through with delays compensated
+ *       @li When automatic timestamp compensation is used, (min_compensation < FLT_MAX)
+ *              in this case the output timestamps will match output sample numbers.
+ *              See ffmpeg-resampler(1) for the two modes of compensation.
+ *
+ * @param s[in]     initialized Swr context
+ * @param pts[in]   timestamp for the next input sample, INT64_MIN if unknown
+ * @see swr_set_compensation(), swr_drop_output(), and swr_inject_silence() are
+ *      function used internally for timestamp compensation.
+ * @return the output timestamp for the next output sample
+ */
+int64_t swr_next_pts(struct SwrContext *s, int64_t pts);
+
+/**
+ * @}
+ *
+ * @name Low-level option setting functions
+ * These functons provide a means to set low-level options that is not possible
+ * with the AVOption API.
+ * @{
+ */
+
+/**
+ * Activate resampling compensation ("soft" compensation). This function is
+ * internally called when needed in swr_next_pts().
+ *
+ * @param[in,out] s             allocated Swr context. If it is not initialized,
+ *                              or SWR_FLAG_RESAMPLE is not set, swr_init() is
+ *                              called with the flag set.
+ * @param[in]     sample_delta  delta in PTS per sample
+ * @param[in]     compensation_distance number of samples to compensate for
+ * @return    >= 0 on success, AVERROR error codes if:
+ *            @li @c s is NULL,
+ *            @li @c compensation_distance is less than 0,
+ *            @li @c compensation_distance is 0 but sample_delta is not,
+ *            @li compensation unsupported by resampler, or
+ *            @li swr_init() fails when called.
+ */
+int swr_set_compensation(struct SwrContext *s, int sample_delta, int compensation_distance);
+
+/**
+ * Set a customized input channel mapping.
+ *
+ * @param[in,out] s           allocated Swr context, not yet initialized
+ * @param[in]     channel_map customized input channel mapping (array of channel
+ *                            indexes, -1 for a muted channel)
+ * @return >= 0 on success, or AVERROR error code in case of failure.
+ */
+int swr_set_channel_mapping(struct SwrContext *s, const int *channel_map);
+
+/**
+ * Generate a channel mixing matrix.
+ *
+ * This function is the one used internally by libswresample for building the
+ * default mixing matrix. It is made public just as a utility function for
+ * building custom matrices.
+ *
+ * @param in_layout           input channel layout
+ * @param out_layout          output channel layout
+ * @param center_mix_level    mix level for the center channel
+ * @param surround_mix_level  mix level for the surround channel(s)
+ * @param lfe_mix_level       mix level for the low-frequency effects channel
+ * @param rematrix_maxval     if 1.0, coefficients will be normalized to prevent
+ *                            overflow. if INT_MAX, coefficients will not be
+ *                            normalized.
+ * @param[out] matrix         mixing coefficients; matrix[i + stride * o] is
+ *                            the weight of input channel i in output channel o.
+ * @param stride              distance between adjacent input channels in the
+ *                            matrix array
+ * @param matrix_encoding     matrixed stereo downmix mode (e.g. dplii)
+ * @param log_ctx             parent logging context, can be NULL
+ * @return                    0 on success, negative AVERROR code on failure
+ */
+int swr_build_matrix(uint64_t in_layout, uint64_t out_layout,
+                     double center_mix_level, double surround_mix_level,
+                     double lfe_mix_level, double rematrix_maxval,
+                     double rematrix_volume, double *matrix,
+                     int stride, enum AVMatrixEncoding matrix_encoding,
+                     void *log_ctx);
+
+/**
+ * Set a customized remix matrix.
+ *
+ * @param s       allocated Swr context, not yet initialized
+ * @param matrix  remix coefficients; matrix[i + stride * o] is
+ *                the weight of input channel i in output channel o
+ * @param stride  offset between lines of the matrix
+ * @return  >= 0 on success, or AVERROR error code in case of failure.
+ */
+int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride);
+
+/**
+ * @}
+ *
+ * @name Sample handling functions
+ * @{
+ */
+
+/**
+ * Drops the specified number of output samples.
+ *
+ * This function, along with swr_inject_silence(), is called by swr_next_pts()
+ * if needed for "hard" compensation.
+ *
+ * @param s     allocated Swr context
+ * @param count number of samples to be dropped
+ *
+ * @return >= 0 on success, or a negative AVERROR code on failure
+ */
+int swr_drop_output(struct SwrContext *s, int count);
+
+/**
+ * Injects the specified number of silence samples.
+ *
+ * This function, along with swr_drop_output(), is called by swr_next_pts()
+ * if needed for "hard" compensation.
+ *
+ * @param s     allocated Swr context
+ * @param count number of samples to be dropped
+ *
+ * @return >= 0 on success, or a negative AVERROR code on failure
+ */
+int swr_inject_silence(struct SwrContext *s, int count);
+
+/**
+ * Gets the delay the next input sample will experience relative to the next output sample.
+ *
+ * Swresample can buffer data if more input has been provided than available
+ * output space, also converting between sample rates needs a delay.
+ * This function returns the sum of all such delays.
+ * The exact delay is not necessarily an integer value in either input or
+ * output sample rate. Especially when downsampling by a large value, the
+ * output sample rate may be a poor choice to represent the delay, similarly
+ * for upsampling and the input sample rate.
+ *
+ * @param s     swr context
+ * @param base  timebase in which the returned delay will be:
+ *              @li if it's set to 1 the returned delay is in seconds
+ *              @li if it's set to 1000 the returned delay is in milliseconds
+ *              @li if it's set to the input sample rate then the returned
+ *                  delay is in input samples
+ *              @li if it's set to the output sample rate then the returned
+ *                  delay is in output samples
+ *              @li if it's the least common multiple of in_sample_rate and
+ *                  out_sample_rate then an exact rounding-free delay will be
+ *                  returned
+ * @returns     the delay in 1 / @c base units.
+ */
+int64_t swr_get_delay(struct SwrContext *s, int64_t base);
+
+/**
+ * Find an upper bound on the number of samples that the next swr_convert
+ * call will output, if called with in_samples of input samples. This
+ * depends on the internal state, and anything changing the internal state
+ * (like further swr_convert() calls) will may change the number of samples
+ * swr_get_out_samples() returns for the same number of input samples.
+ *
+ * @param in_samples    number of input samples.
+ * @note any call to swr_inject_silence(), swr_convert(), swr_next_pts()
+ *       or swr_set_compensation() invalidates this limit
+ * @note it is recommended to pass the correct available buffer size
+ *       to all functions like swr_convert() even if swr_get_out_samples()
+ *       indicates that less would be used.
+ * @returns an upper bound on the number of samples that the next swr_convert
+ *          will output or a negative value to indicate an error
+ */
+int swr_get_out_samples(struct SwrContext *s, int in_samples);
+
+/**
+ * @}
+ *
+ * @name Configuration accessors
+ * @{
+ */
+
+/**
+ * Return the @ref LIBSWRESAMPLE_VERSION_INT constant.
+ *
+ * This is useful to check if the build-time libswresample has the same version
+ * as the run-time one.
+ *
+ * @returns     the unsigned int-typed version
+ */
+unsigned swresample_version(void);
+
+/**
+ * Return the swr build-time configuration.
+ *
+ * @returns     the build-time @c ./configure flags
+ */
+const char *swresample_configuration(void);
+
+/**
+ * Return the swr license.
+ *
+ * @returns     the license of libswresample, determined at build-time
+ */
+const char *swresample_license(void);
+
+/**
+ * @}
+ *
+ * @name AVFrame based API
+ * @{
+ */
+
+/**
+ * Convert the samples in the input AVFrame and write them to the output AVFrame.
+ *
+ * Input and output AVFrames must have channel_layout, sample_rate and format set.
+ *
+ * If the output AVFrame does not have the data pointers allocated the nb_samples
+ * field will be set using av_frame_get_buffer()
+ * is called to allocate the frame.
+ *
+ * The output AVFrame can be NULL or have fewer allocated samples than required.
+ * In this case, any remaining samples not written to the output will be added
+ * to an internal FIFO buffer, to be returned at the next call to this function
+ * or to swr_convert().
+ *
+ * If converting sample rate, there may be data remaining in the internal
+ * resampling delay buffer. swr_get_delay() tells the number of
+ * remaining samples. To get this data as output, call this function or
+ * swr_convert() with NULL input.
+ *
+ * If the SwrContext configuration does not match the output and
+ * input AVFrame settings the conversion does not take place and depending on
+ * which AVFrame is not matching AVERROR_OUTPUT_CHANGED, AVERROR_INPUT_CHANGED
+ * or the result of a bitwise-OR of them is returned.
+ *
+ * @see swr_delay()
+ * @see swr_convert()
+ * @see swr_get_delay()
+ *
+ * @param swr             audio resample context
+ * @param output          output AVFrame
+ * @param input           input AVFrame
+ * @return                0 on success, AVERROR on failure or nonmatching
+ *                        configuration.
+ */
+int swr_convert_frame(SwrContext *swr,
+                      AVFrame *output, const AVFrame *input);
+
+/**
+ * Configure or reconfigure the SwrContext using the information
+ * provided by the AVFrames.
+ *
+ * The original resampling context is reset even on failure.
+ * The function calls swr_close() internally if the context is open.
+ *
+ * @see swr_close();
+ *
+ * @param swr             audio resample context
+ * @param output          output AVFrame
+ * @param input           input AVFrame
+ * @return                0 on success, AVERROR on failure.
+ */
+int swr_config_frame(SwrContext *swr, const AVFrame *out, const AVFrame *in);
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* SWRESAMPLE_SWRESAMPLE_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresample_frame.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresample_frame.c
new file mode 100644
index 000000000..2853266d6
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresample_frame.c
@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) 2014 Luca Barbato <lu_zero@gentoo.org>
+ * Copyright (c) 2014 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "swresample_internal.h"
+#include "libavutil/frame.h"
+#include "libavutil/opt.h"
+
+int swr_config_frame(SwrContext *s, const AVFrame *out, const AVFrame *in)
+{
+    swr_close(s);
+
+    if (in) {
+        if (av_opt_set_int(s, "icl", in->channel_layout, 0) < 0)
+            goto fail;
+        if (av_opt_set_int(s, "isf", in->format, 0) < 0)
+            goto fail;
+        if (av_opt_set_int(s, "isr", in->sample_rate, 0) < 0)
+            goto fail;
+    }
+
+    if (out) {
+        if (av_opt_set_int(s, "ocl", out->channel_layout, 0) < 0)
+            goto fail;
+        if (av_opt_set_int(s, "osf", out->format,  0) < 0)
+            goto fail;
+        if (av_opt_set_int(s, "osr", out->sample_rate, 0) < 0)
+            goto fail;
+    }
+
+    return 0;
+fail:
+    av_log(s, AV_LOG_ERROR, "Failed to set option\n");
+    return AVERROR(EINVAL);
+}
+
+static int config_changed(SwrContext *s,
+                          const AVFrame *out, const AVFrame *in)
+{
+    int ret = 0;
+
+    if (in) {
+        if (s->in_ch_layout   != in->channel_layout ||
+            s->in_sample_rate != in->sample_rate ||
+            s->in_sample_fmt  != in->format) {
+            ret |= AVERROR_INPUT_CHANGED;
+        }
+    }
+
+    if (out) {
+        if (s->out_ch_layout   != out->channel_layout ||
+            s->out_sample_rate != out->sample_rate ||
+            s->out_sample_fmt  != out->format) {
+            ret |= AVERROR_OUTPUT_CHANGED;
+        }
+    }
+
+    return ret;
+}
+
+static inline int convert_frame(SwrContext *s,
+                                AVFrame *out, const AVFrame *in)
+{
+    int ret;
+    uint8_t **out_data = NULL;
+    const uint8_t **in_data = NULL;
+    int out_nb_samples = 0, in_nb_samples = 0;
+
+    if (out) {
+        out_data       = out->extended_data;
+        out_nb_samples = out->nb_samples;
+    }
+
+    if (in) {
+        in_data       = (const uint8_t **)in->extended_data;
+        in_nb_samples = in->nb_samples;
+    }
+
+    ret = swr_convert(s, out_data, out_nb_samples, in_data, in_nb_samples);
+
+    if (ret < 0) {
+        if (out)
+            out->nb_samples = 0;
+        return ret;
+    }
+
+    if (out)
+        out->nb_samples = ret;
+
+    return 0;
+}
+
+static inline int available_samples(AVFrame *out)
+{
+    int bytes_per_sample = av_get_bytes_per_sample(out->format);
+    int samples = out->linesize[0] / bytes_per_sample;
+
+    if (av_sample_fmt_is_planar(out->format)) {
+        return samples;
+    } else {
+        int channels = av_get_channel_layout_nb_channels(out->channel_layout);
+        return samples / channels;
+    }
+}
+
+int swr_convert_frame(SwrContext *s,
+                      AVFrame *out, const AVFrame *in)
+{
+    int ret, setup = 0;
+
+    if (!swr_is_initialized(s)) {
+        if ((ret = swr_config_frame(s, out, in)) < 0)
+            return ret;
+        if ((ret = swr_init(s)) < 0)
+            return ret;
+        setup = 1;
+    } else {
+        // return as is or reconfigure for input changes?
+        if ((ret = config_changed(s, out, in)))
+            return ret;
+    }
+
+    if (out) {
+        if (!out->linesize[0]) {
+            out->nb_samples = swr_get_delay(s, s->out_sample_rate) + 3;
+            if (in) {
+                out->nb_samples += in->nb_samples*(int64_t)s->out_sample_rate / s->in_sample_rate;
+            }
+            if ((ret = av_frame_get_buffer(out, 0)) < 0) {
+                if (setup)
+                    swr_close(s);
+                return ret;
+            }
+        } else {
+            if (!out->nb_samples)
+                out->nb_samples = available_samples(out);
+        }
+    }
+
+    return convert_frame(s, out, in);
+}
+
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresample_internal.h b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresample_internal.h
new file mode 100644
index 000000000..f2ea5a226
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresample_internal.h
@@ -0,0 +1,222 @@
+/*
+ * Copyright (C) 2011-2013 Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef SWRESAMPLE_SWRESAMPLE_INTERNAL_H
+#define SWRESAMPLE_SWRESAMPLE_INTERNAL_H
+
+#include "swresample.h"
+#include "libavutil/channel_layout.h"
+#include "config.h"
+
+#define SWR_CH_MAX 64
+
+#define SQRT3_2      1.22474487139158904909  /* sqrt(3/2) */
+
+#define NS_TAPS 20
+
+#if ARCH_X86_64
+typedef int64_t integer;
+#else
+typedef int integer;
+#endif
+
+typedef void (mix_1_1_func_type)(void *out, const void *in, void *coeffp, integer index, integer len);
+typedef void (mix_2_1_func_type)(void *out, const void *in1, const void *in2, void *coeffp, integer index1, integer index2, integer len);
+
+typedef void (mix_any_func_type)(uint8_t **out, const uint8_t **in1, void *coeffp, integer len);
+
+typedef struct AudioData{
+    uint8_t *ch[SWR_CH_MAX];    ///< samples buffer per channel
+    uint8_t *data;              ///< samples buffer
+    int ch_count;               ///< number of channels
+    int bps;                    ///< bytes per sample
+    int count;                  ///< number of samples
+    int planar;                 ///< 1 if planar audio, 0 otherwise
+    enum AVSampleFormat fmt;    ///< sample format
+} AudioData;
+
+struct DitherContext {
+    int method;
+    int noise_pos;
+    float scale;
+    float noise_scale;                              ///< Noise scale
+    int ns_taps;                                    ///< Noise shaping dither taps
+    float ns_scale;                                 ///< Noise shaping dither scale
+    float ns_scale_1;                               ///< Noise shaping dither scale^-1
+    int ns_pos;                                     ///< Noise shaping dither position
+    float ns_coeffs[NS_TAPS];                       ///< Noise shaping filter coefficients
+    float ns_errors[SWR_CH_MAX][2*NS_TAPS];
+    AudioData noise;                                ///< noise used for dithering
+    AudioData temp;                                 ///< temporary storage when writing into the input buffer isn't possible
+    int output_sample_bits;                         ///< the number of used output bits, needed to scale dither correctly
+};
+
+typedef struct ResampleContext * (* resample_init_func)(struct ResampleContext *c, int out_rate, int in_rate, int filter_size, int phase_shift, int linear,
+                                    double cutoff, enum AVSampleFormat format, enum SwrFilterType filter_type, double kaiser_beta, double precision, int cheby, int exact_rational);
+typedef void    (* resample_free_func)(struct ResampleContext **c);
+typedef int     (* multiple_resample_func)(struct ResampleContext *c, AudioData *dst, int dst_size, AudioData *src, int src_size, int *consumed);
+typedef int     (* resample_flush_func)(struct SwrContext *c);
+typedef int     (* set_compensation_func)(struct ResampleContext *c, int sample_delta, int compensation_distance);
+typedef int64_t (* get_delay_func)(struct SwrContext *s, int64_t base);
+typedef int     (* invert_initial_buffer_func)(struct ResampleContext *c, AudioData *dst, const AudioData *src, int src_size, int *dst_idx, int *dst_count);
+typedef int64_t (* get_out_samples_func)(struct SwrContext *s, int in_samples);
+
+struct Resampler {
+  resample_init_func            init;
+  resample_free_func            free;
+  multiple_resample_func        multiple_resample;
+  resample_flush_func           flush;
+  set_compensation_func         set_compensation;
+  get_delay_func                get_delay;
+  invert_initial_buffer_func    invert_initial_buffer;
+  get_out_samples_func          get_out_samples;
+};
+
+extern struct Resampler const swri_resampler;
+extern struct Resampler const swri_soxr_resampler;
+
+struct SwrContext {
+    const AVClass *av_class;                        ///< AVClass used for AVOption and av_log()
+    int log_level_offset;                           ///< logging level offset
+    void *log_ctx;                                  ///< parent logging context
+    enum AVSampleFormat  in_sample_fmt;             ///< input sample format
+    enum AVSampleFormat int_sample_fmt;             ///< internal sample format (AV_SAMPLE_FMT_FLTP or AV_SAMPLE_FMT_S16P)
+    enum AVSampleFormat out_sample_fmt;             ///< output sample format
+    int64_t  in_ch_layout;                          ///< input channel layout
+    int64_t out_ch_layout;                          ///< output channel layout
+    int      in_sample_rate;                        ///< input sample rate
+    int     out_sample_rate;                        ///< output sample rate
+    int flags;                                      ///< miscellaneous flags such as SWR_FLAG_RESAMPLE
+    float slev;                                     ///< surround mixing level
+    float clev;                                     ///< center mixing level
+    float lfe_mix_level;                            ///< LFE mixing level
+    float rematrix_volume;                          ///< rematrixing volume coefficient
+    float rematrix_maxval;                          ///< maximum value for rematrixing output
+    int matrix_encoding;                            /**< matrixed stereo encoding */
+    const int *channel_map;                         ///< channel index (or -1 if muted channel) map
+    int used_ch_count;                              ///< number of used input channels (mapped channel count if channel_map, otherwise in.ch_count)
+    int engine;
+
+    int user_in_ch_count;                           ///< User set input channel count
+    int user_out_ch_count;                          ///< User set output channel count
+    int user_used_ch_count;                         ///< User set used channel count
+    int64_t user_in_ch_layout;                      ///< User set input channel layout
+    int64_t user_out_ch_layout;                     ///< User set output channel layout
+    enum AVSampleFormat user_int_sample_fmt;        ///< User set internal sample format
+    int user_dither_method;                         ///< User set dither method
+
+    struct DitherContext dither;
+
+    int filter_size;                                /**< length of each FIR filter in the resampling filterbank relative to the cutoff frequency */
+    int phase_shift;                                /**< log2 of the number of entries in the resampling polyphase filterbank */
+    int linear_interp;                              /**< if 1 then the resampling FIR filter will be linearly interpolated */
+    int exact_rational;                             /**< if 1 then enable non power of 2 phase_count */
+    double cutoff;                                  /**< resampling cutoff frequency (swr: 6dB point; soxr: 0dB point). 1.0 corresponds to half the output sample rate */
+    int filter_type;                                /**< swr resampling filter type */
+    double kaiser_beta;                                /**< swr beta value for Kaiser window (only applicable if filter_type == AV_FILTER_TYPE_KAISER) */
+    double precision;                               /**< soxr resampling precision (in bits) */
+    int cheby;                                      /**< soxr: if 1 then passband rolloff will be none (Chebyshev) & irrational ratio approximation precision will be higher */
+
+    float min_compensation;                         ///< swr minimum below which no compensation will happen
+    float min_hard_compensation;                    ///< swr minimum below which no silence inject / sample drop will happen
+    float soft_compensation_duration;               ///< swr duration over which soft compensation is applied
+    float max_soft_compensation;                    ///< swr maximum soft compensation in seconds over soft_compensation_duration
+    float async;                                    ///< swr simple 1 parameter async, similar to ffmpegs -async
+    int64_t firstpts_in_samples;                    ///< swr first pts in samples
+
+    int resample_first;                             ///< 1 if resampling must come first, 0 if rematrixing
+    int rematrix;                                   ///< flag to indicate if rematrixing is needed (basically if input and output layouts mismatch)
+    int rematrix_custom;                            ///< flag to indicate that a custom matrix has been defined
+
+    AudioData in;                                   ///< input audio data
+    AudioData postin;                               ///< post-input audio data: used for rematrix/resample
+    AudioData midbuf;                               ///< intermediate audio data (postin/preout)
+    AudioData preout;                               ///< pre-output audio data: used for rematrix/resample
+    AudioData out;                                  ///< converted output audio data
+    AudioData in_buffer;                            ///< cached audio data (convert and resample purpose)
+    AudioData silence;                              ///< temporary with silence
+    AudioData drop_temp;                            ///< temporary used to discard output
+    int in_buffer_index;                            ///< cached buffer position
+    int in_buffer_count;                            ///< cached buffer length
+    int resample_in_constraint;                     ///< 1 if the input end was reach before the output end, 0 otherwise
+    int flushed;                                    ///< 1 if data is to be flushed and no further input is expected
+    int64_t outpts;                                 ///< output PTS
+    int64_t firstpts;                               ///< first PTS
+    int drop_output;                                ///< number of output samples to drop
+    double delayed_samples_fixup;                   ///< soxr 0.1.1: needed to fixup delayed_samples after flush has been called.
+
+    struct AudioConvert *in_convert;                ///< input conversion context
+    struct AudioConvert *out_convert;               ///< output conversion context
+    struct AudioConvert *full_convert;              ///< full conversion context (single conversion for input and output)
+    struct ResampleContext *resample;               ///< resampling context
+    struct Resampler const *resampler;              ///< resampler virtual function table
+
+    double matrix[SWR_CH_MAX][SWR_CH_MAX];          ///< floating point rematrixing coefficients
+    float matrix_flt[SWR_CH_MAX][SWR_CH_MAX];       ///< single precision floating point rematrixing coefficients
+    uint8_t *native_matrix;
+    uint8_t *native_one;
+    uint8_t *native_simd_one;
+    uint8_t *native_simd_matrix;
+    int32_t matrix32[SWR_CH_MAX][SWR_CH_MAX];       ///< 17.15 fixed point rematrixing coefficients
+    uint8_t matrix_ch[SWR_CH_MAX][SWR_CH_MAX+1];    ///< Lists of input channels per output channel that have non zero rematrixing coefficients
+    mix_1_1_func_type *mix_1_1_f;
+    mix_1_1_func_type *mix_1_1_simd;
+
+    mix_2_1_func_type *mix_2_1_f;
+    mix_2_1_func_type *mix_2_1_simd;
+
+    mix_any_func_type *mix_any_f;
+
+    /* TODO: callbacks for ASM optimizations */
+};
+
+av_warn_unused_result
+int swri_realloc_audio(AudioData *a, int count);
+
+void swri_noise_shaping_int16 (SwrContext *s, AudioData *dsts, const AudioData *srcs, const AudioData *noises, int count);
+void swri_noise_shaping_int32 (SwrContext *s, AudioData *dsts, const AudioData *srcs, const AudioData *noises, int count);
+void swri_noise_shaping_float (SwrContext *s, AudioData *dsts, const AudioData *srcs, const AudioData *noises, int count);
+void swri_noise_shaping_double(SwrContext *s, AudioData *dsts, const AudioData *srcs, const AudioData *noises, int count);
+
+av_warn_unused_result
+int swri_rematrix_init(SwrContext *s);
+void swri_rematrix_free(SwrContext *s);
+int swri_rematrix(SwrContext *s, AudioData *out, AudioData *in, int len, int mustcopy);
+int swri_rematrix_init_x86(struct SwrContext *s);
+
+av_warn_unused_result
+int swri_get_dither(SwrContext *s, void *dst, int len, unsigned seed, enum AVSampleFormat noise_fmt);
+av_warn_unused_result
+int swri_dither_init(SwrContext *s, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt);
+
+void swri_audio_convert_init_aarch64(struct AudioConvert *ac,
+                                 enum AVSampleFormat out_fmt,
+                                 enum AVSampleFormat in_fmt,
+                                 int channels);
+void swri_audio_convert_init_arm(struct AudioConvert *ac,
+                                 enum AVSampleFormat out_fmt,
+                                 enum AVSampleFormat in_fmt,
+                                 int channels);
+void swri_audio_convert_init_x86(struct AudioConvert *ac,
+                                 enum AVSampleFormat out_fmt,
+                                 enum AVSampleFormat in_fmt,
+                                 int channels);
+
+#endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresampleres.rc b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresampleres.rc
new file mode 100644
index 000000000..1320f78b9
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/swresampleres.rc
@@ -0,0 +1,55 @@
+/*
+ * Windows resource file for libswresample
+ *
+ * Copyright (C) 2012 James Almer
+ * Copyright (C) 2013 Tiancheng "Timothy" Gu
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <windows.h>
+#include "libswresample/version.h"
+#include "libavutil/ffversion.h"
+#include "config.h"
+
+1 VERSIONINFO
+FILEVERSION     LIBSWRESAMPLE_VERSION_MAJOR, LIBSWRESAMPLE_VERSION_MINOR, LIBSWRESAMPLE_VERSION_MICRO, 0
+PRODUCTVERSION  LIBSWRESAMPLE_VERSION_MAJOR, LIBSWRESAMPLE_VERSION_MINOR, LIBSWRESAMPLE_VERSION_MICRO, 0
+FILEFLAGSMASK   VS_FFI_FILEFLAGSMASK
+FILEOS          VOS_NT_WINDOWS32
+FILETYPE        VFT_DLL
+{
+    BLOCK "StringFileInfo"
+    {
+        BLOCK "040904B0"
+        {
+            VALUE "CompanyName",      "FFmpeg Project"
+            VALUE "FileDescription",  "FFmpeg audio resampling library"
+            VALUE "FileVersion",      AV_STRINGIFY(LIBSWRESAMPLE_VERSION)
+            VALUE "InternalName",     "libswresample"
+            VALUE "LegalCopyright",   "Copyright (C) 2000-" AV_STRINGIFY(CONFIG_THIS_YEAR) " FFmpeg Project"
+            VALUE "OriginalFilename", "swresample" BUILDSUF "-" AV_STRINGIFY(LIBSWRESAMPLE_VERSION_MAJOR) SLIBSUF
+            VALUE "ProductName",      "FFmpeg"
+            VALUE "ProductVersion",   FFMPEG_VERSION
+        }
+    }
+
+    BLOCK "VarFileInfo"
+    {
+        VALUE "Translation", 0x0409, 0x04B0
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/version.h b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/version.h
new file mode 100644
index 000000000..a0b361bc1
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/version.h
@@ -0,0 +1,45 @@
+/*
+ * Version macros.
+ *
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef SWRESAMPLE_VERSION_H
+#define SWRESAMPLE_VERSION_H
+
+/**
+ * @file
+ * Libswresample version macros
+ */
+
+#include "libavutil/avutil.h"
+
+#define LIBSWRESAMPLE_VERSION_MAJOR   3
+#define LIBSWRESAMPLE_VERSION_MINOR   5
+#define LIBSWRESAMPLE_VERSION_MICRO 100
+
+#define LIBSWRESAMPLE_VERSION_INT  AV_VERSION_INT(LIBSWRESAMPLE_VERSION_MAJOR, \
+                                                  LIBSWRESAMPLE_VERSION_MINOR, \
+                                                  LIBSWRESAMPLE_VERSION_MICRO)
+#define LIBSWRESAMPLE_VERSION      AV_VERSION(LIBSWRESAMPLE_VERSION_MAJOR, \
+                                              LIBSWRESAMPLE_VERSION_MINOR, \
+                                              LIBSWRESAMPLE_VERSION_MICRO)
+#define LIBSWRESAMPLE_BUILD        LIBSWRESAMPLE_VERSION_INT
+
+#define LIBSWRESAMPLE_IDENT        "SwR" AV_STRINGIFY(LIBSWRESAMPLE_VERSION)
+
+#endif /* SWRESAMPLE_VERSION_H */
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/Makefile b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/Makefile
new file mode 100644
index 000000000..fa0641f03
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/Makefile
@@ -0,0 +1,9 @@
+X86ASM-OBJS                     += x86/audio_convert.o\
+                                   x86/rematrix.o\
+                                   x86/resample.o\
+
+OBJS                            += x86/audio_convert_init.o\
+                                   x86/rematrix_init.o\
+                                   x86/resample_init.o\
+
+OBJS-$(CONFIG_XMM_CLOBBER_TEST) += x86/w64xmmtest.o
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/audio_convert.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/audio_convert.asm
new file mode 100644
index 000000000..d441636d3
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/audio_convert.asm
@@ -0,0 +1,739 @@
+;******************************************************************************
+;* Copyright (c) 2012 Michael Niedermayer
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION_RODATA 32
+flt2pm31: times 8 dd 4.6566129e-10
+flt2p31 : times 8 dd 2147483648.0
+flt2p15 : times 8 dd 32768.0
+
+word_unpack_shuf : db  0, 1, 4, 5, 8, 9,12,13, 2, 3, 6, 7,10,11,14,15
+
+SECTION .text
+
+
+;to, from, a/u, log2_outsize, log_intsize, const
+%macro PACK_2CH 5-7
+cglobal pack_2ch_%2_to_%1_%3, 3, 4, 6, dst, src, len, src2
+    mov src2q   , [srcq+gprsize]
+    mov srcq    , [srcq]
+    mov dstq    , [dstq]
+%ifidn %3, a
+    test dstq, mmsize-1
+        jne pack_2ch_%2_to_%1_u_int %+ SUFFIX
+    test srcq, mmsize-1
+        jne pack_2ch_%2_to_%1_u_int %+ SUFFIX
+    test src2q, mmsize-1
+        jne pack_2ch_%2_to_%1_u_int %+ SUFFIX
+%else
+pack_2ch_%2_to_%1_u_int %+ SUFFIX:
+%endif
+    lea     srcq , [srcq  + (1<<%5)*lenq]
+    lea     src2q, [src2q + (1<<%5)*lenq]
+    lea     dstq , [dstq  + (2<<%4)*lenq]
+    neg     lenq
+    %7 m0,m1,m2,m3,m4,m5
+.next:
+%if %4 >= %5
+    mov%3     m0, [         srcq +(1<<%5)*lenq]
+    mova      m1, m0
+    mov%3     m2, [         src2q+(1<<%5)*lenq]
+%if %5 == 1
+    punpcklwd m0, m2
+    punpckhwd m1, m2
+%else
+    punpckldq m0, m2
+    punpckhdq m1, m2
+%endif
+    %6 m0,m1,m2,m3,m4,m5
+%else
+    mov%3     m0, [         srcq +(1<<%5)*lenq]
+    mov%3     m1, [mmsize + srcq +(1<<%5)*lenq]
+    mov%3     m2, [         src2q+(1<<%5)*lenq]
+    mov%3     m3, [mmsize + src2q+(1<<%5)*lenq]
+    %6 m0,m1,m2,m3,m4,m5
+    mova      m2, m0
+    punpcklwd m0, m1
+    punpckhwd m2, m1
+    SWAP 1,2
+%endif
+    mov%3 [           dstq+(2<<%4)*lenq], m0
+    mov%3 [  mmsize + dstq+(2<<%4)*lenq], m1
+%if %4 > %5
+    mov%3 [2*mmsize + dstq+(2<<%4)*lenq], m2
+    mov%3 [3*mmsize + dstq+(2<<%4)*lenq], m3
+    add lenq, 4*mmsize/(2<<%4)
+%else
+    add lenq, 2*mmsize/(2<<%4)
+%endif
+        jl .next
+    REP_RET
+%endmacro
+
+%macro UNPACK_2CH 5-7
+cglobal unpack_2ch_%2_to_%1_%3, 3, 4, 7, dst, src, len, dst2
+    mov dst2q   , [dstq+gprsize]
+    mov srcq    , [srcq]
+    mov dstq    , [dstq]
+%ifidn %3, a
+    test dstq, mmsize-1
+        jne unpack_2ch_%2_to_%1_u_int %+ SUFFIX
+    test srcq, mmsize-1
+        jne unpack_2ch_%2_to_%1_u_int %+ SUFFIX
+    test dst2q, mmsize-1
+        jne unpack_2ch_%2_to_%1_u_int %+ SUFFIX
+%else
+unpack_2ch_%2_to_%1_u_int %+ SUFFIX:
+%endif
+    lea     srcq , [srcq  + (2<<%5)*lenq]
+    lea     dstq , [dstq  + (1<<%4)*lenq]
+    lea     dst2q, [dst2q + (1<<%4)*lenq]
+    neg     lenq
+    %7 m0,m1,m2,m3,m4,m5
+    mova      m6, [word_unpack_shuf]
+.next:
+    mov%3     m0, [           srcq +(2<<%5)*lenq]
+    mov%3     m2, [  mmsize + srcq +(2<<%5)*lenq]
+%if %5 == 1
+%ifidn SUFFIX, _ssse3
+    pshufb    m0, m6
+    mova      m1, m0
+    pshufb    m2, m6
+    punpcklqdq m0,m2
+    punpckhqdq m1,m2
+%else
+    mova      m1, m0
+    punpcklwd m0,m2
+    punpckhwd m1,m2
+
+    mova      m2, m0
+    punpcklwd m0,m1
+    punpckhwd m2,m1
+
+    mova      m1, m0
+    punpcklwd m0,m2
+    punpckhwd m1,m2
+%endif
+%else
+    mova      m1, m0
+    shufps    m0, m2, 10001000b
+    shufps    m1, m2, 11011101b
+%endif
+%if %4 < %5
+    mov%3     m2, [2*mmsize + srcq +(2<<%5)*lenq]
+    mova      m3, m2
+    mov%3     m4, [3*mmsize + srcq +(2<<%5)*lenq]
+    shufps    m2, m4, 10001000b
+    shufps    m3, m4, 11011101b
+    SWAP 1,2
+%endif
+    %6 m0,m1,m2,m3,m4,m5
+    mov%3 [           dstq+(1<<%4)*lenq], m0
+%if %4 > %5
+    mov%3 [          dst2q+(1<<%4)*lenq], m2
+    mov%3 [ mmsize +  dstq+(1<<%4)*lenq], m1
+    mov%3 [ mmsize + dst2q+(1<<%4)*lenq], m3
+    add lenq, 2*mmsize/(1<<%4)
+%else
+    mov%3 [          dst2q+(1<<%4)*lenq], m1
+    add lenq, mmsize/(1<<%4)
+%endif
+        jl .next
+    REP_RET
+%endmacro
+
+%macro CONV 5-7
+cglobal %2_to_%1_%3, 3, 3, 6, dst, src, len
+    mov srcq    , [srcq]
+    mov dstq    , [dstq]
+%ifidn %3, a
+    test dstq, mmsize-1
+        jne %2_to_%1_u_int %+ SUFFIX
+    test srcq, mmsize-1
+        jne %2_to_%1_u_int %+ SUFFIX
+%else
+%2_to_%1_u_int %+ SUFFIX:
+%endif
+    lea     srcq , [srcq  + (1<<%5)*lenq]
+    lea     dstq , [dstq  + (1<<%4)*lenq]
+    neg     lenq
+    %7 m0,m1,m2,m3,m4,m5
+.next:
+    mov%3     m0, [           srcq +(1<<%5)*lenq]
+    mov%3     m1, [  mmsize + srcq +(1<<%5)*lenq]
+%if %4 < %5
+    mov%3     m2, [2*mmsize + srcq +(1<<%5)*lenq]
+    mov%3     m3, [3*mmsize + srcq +(1<<%5)*lenq]
+%endif
+    %6 m0,m1,m2,m3,m4,m5
+    mov%3 [           dstq+(1<<%4)*lenq], m0
+    mov%3 [  mmsize + dstq+(1<<%4)*lenq], m1
+%if %4 > %5
+    mov%3 [2*mmsize + dstq+(1<<%4)*lenq], m2
+    mov%3 [3*mmsize + dstq+(1<<%4)*lenq], m3
+    add lenq, 4*mmsize/(1<<%4)
+%else
+    add lenq, 2*mmsize/(1<<%4)
+%endif
+        jl .next
+%if mmsize == 8
+    emms
+    RET
+%else
+    REP_RET
+%endif
+%endmacro
+
+%macro PACK_6CH 8
+cglobal pack_6ch_%2_to_%1_%3, 2, 8, %6, dst, src, src1, src2, src3, src4, src5, len
+%if ARCH_X86_64
+    mov     lend, r2d
+%else
+    %define lend dword r2m
+%endif
+    mov    src1q, [srcq+1*gprsize]
+    mov    src2q, [srcq+2*gprsize]
+    mov    src3q, [srcq+3*gprsize]
+    mov    src4q, [srcq+4*gprsize]
+    mov    src5q, [srcq+5*gprsize]
+    mov     srcq, [srcq]
+    mov     dstq, [dstq]
+%ifidn %3, a
+    test dstq, mmsize-1
+        jne pack_6ch_%2_to_%1_u_int %+ SUFFIX
+    test srcq, mmsize-1
+        jne pack_6ch_%2_to_%1_u_int %+ SUFFIX
+    test src1q, mmsize-1
+        jne pack_6ch_%2_to_%1_u_int %+ SUFFIX
+    test src2q, mmsize-1
+        jne pack_6ch_%2_to_%1_u_int %+ SUFFIX
+    test src3q, mmsize-1
+        jne pack_6ch_%2_to_%1_u_int %+ SUFFIX
+    test src4q, mmsize-1
+        jne pack_6ch_%2_to_%1_u_int %+ SUFFIX
+    test src5q, mmsize-1
+        jne pack_6ch_%2_to_%1_u_int %+ SUFFIX
+%else
+pack_6ch_%2_to_%1_u_int %+ SUFFIX:
+%endif
+    sub    src1q, srcq
+    sub    src2q, srcq
+    sub    src3q, srcq
+    sub    src4q, srcq
+    sub    src5q, srcq
+    %8 x,x,x,x,m7,x
+.loop:
+    mov%3     m0, [srcq      ]
+    mov%3     m1, [srcq+src1q]
+    mov%3     m2, [srcq+src2q]
+    mov%3     m3, [srcq+src3q]
+    mov%3     m4, [srcq+src4q]
+    mov%3     m5, [srcq+src5q]
+%if cpuflag(sse)
+    SBUTTERFLYPS 0, 1, 6
+    SBUTTERFLYPS 2, 3, 6
+    SBUTTERFLYPS 4, 5, 6
+
+%if cpuflag(avx)
+    blendps   m6, m4, m0, 1100b
+%else
+    movaps    m6, m4
+    shufps    m4, m0, q3210
+    SWAP 4,6
+%endif
+    movlhps   m0, m2
+    movhlps   m4, m2
+%if cpuflag(avx)
+    blendps   m2, m5, m1, 1100b
+%else
+    movaps    m2, m5
+    shufps    m5, m1, q3210
+    SWAP 2,5
+%endif
+    movlhps   m1, m3
+    movhlps   m5, m3
+
+    %7 m0,m6,x,x,m7,m3
+    %7 m4,m1,x,x,m7,m3
+    %7 m2,m5,x,x,m7,m3
+
+    mov %+ %3 %+ ps [dstq   ], m0
+    mov %+ %3 %+ ps [dstq+16], m6
+    mov %+ %3 %+ ps [dstq+32], m4
+    mov %+ %3 %+ ps [dstq+48], m1
+    mov %+ %3 %+ ps [dstq+64], m2
+    mov %+ %3 %+ ps [dstq+80], m5
+%else ; mmx
+    SBUTTERFLY dq, 0, 1, 6
+    SBUTTERFLY dq, 2, 3, 6
+    SBUTTERFLY dq, 4, 5, 6
+
+    movq   [dstq   ], m0
+    movq   [dstq+ 8], m2
+    movq   [dstq+16], m4
+    movq   [dstq+24], m1
+    movq   [dstq+32], m3
+    movq   [dstq+40], m5
+%endif
+    add      srcq, mmsize
+    add      dstq, mmsize*6
+    sub      lend, mmsize/4
+    jg .loop
+%if mmsize == 8
+    emms
+    RET
+%else
+    REP_RET
+%endif
+%endmacro
+
+%macro UNPACK_6CH 8
+cglobal unpack_6ch_%2_to_%1_%3, 2, 8, %6, dst, src, dst1, dst2, dst3, dst4, dst5, len
+%if ARCH_X86_64
+    mov     lend, r2d
+%else
+    %define lend dword r2m
+%endif
+    mov    dst1q, [dstq+1*gprsize]
+    mov    dst2q, [dstq+2*gprsize]
+    mov    dst3q, [dstq+3*gprsize]
+    mov    dst4q, [dstq+4*gprsize]
+    mov    dst5q, [dstq+5*gprsize]
+    mov     dstq, [dstq]
+    mov     srcq, [srcq]
+%ifidn %3, a
+    test dstq, mmsize-1
+        jne unpack_6ch_%2_to_%1_u_int %+ SUFFIX
+    test srcq, mmsize-1
+        jne unpack_6ch_%2_to_%1_u_int %+ SUFFIX
+    test dst1q, mmsize-1
+        jne unpack_6ch_%2_to_%1_u_int %+ SUFFIX
+    test dst2q, mmsize-1
+        jne unpack_6ch_%2_to_%1_u_int %+ SUFFIX
+    test dst3q, mmsize-1
+        jne unpack_6ch_%2_to_%1_u_int %+ SUFFIX
+    test dst4q, mmsize-1
+        jne unpack_6ch_%2_to_%1_u_int %+ SUFFIX
+    test dst5q, mmsize-1
+        jne unpack_6ch_%2_to_%1_u_int %+ SUFFIX
+%else
+unpack_6ch_%2_to_%1_u_int %+ SUFFIX:
+%endif
+    sub    dst1q, dstq
+    sub    dst2q, dstq
+    sub    dst3q, dstq
+    sub    dst4q, dstq
+    sub    dst5q, dstq
+    %8 x,x,x,x,m7,x
+.loop:
+    mov%3     m0, [srcq   ]
+    mov%3     m1, [srcq+16]
+    mov%3     m2, [srcq+32]
+    mov%3     m3, [srcq+48]
+    mov%3     m4, [srcq+64]
+    mov%3     m5, [srcq+80]
+
+    SBUTTERFLYPS 0, 3, 6
+    SBUTTERFLYPS 1, 4, 6
+    SBUTTERFLYPS 2, 5, 6
+    SBUTTERFLYPS 0, 4, 6
+    SBUTTERFLYPS 3, 2, 6
+    SBUTTERFLYPS 1, 5, 6
+    SWAP 1, 4
+    SWAP 2, 3
+
+    %7 m0,m1,x,x,m7,m6
+    %7 m2,m3,x,x,m7,m6
+    %7 m4,m5,x,x,m7,m6
+
+    mov %+ %3 %+ ps [dstq      ], m0
+    mov %+ %3 %+ ps [dstq+dst1q], m1
+    mov %+ %3 %+ ps [dstq+dst2q], m2
+    mov %+ %3 %+ ps [dstq+dst3q], m3
+    mov %+ %3 %+ ps [dstq+dst4q], m4
+    mov %+ %3 %+ ps [dstq+dst5q], m5
+
+    add      srcq, mmsize*6
+    add      dstq, mmsize
+    sub      lend, mmsize/4
+    jg .loop
+    REP_RET
+%endmacro
+
+%define PACK_8CH_GPRS (10 * ARCH_X86_64) + ((6 + HAVE_ALIGNED_STACK) * ARCH_X86_32)
+
+%macro PACK_8CH 8
+cglobal pack_8ch_%2_to_%1_%3, 2, PACK_8CH_GPRS, %6, ARCH_X86_32*48, dst, src, len, src1, src2, src3, src4, src5, src6, src7
+    mov     dstq, [dstq]
+%if ARCH_X86_32
+    DEFINE_ARGS dst, src, src2, src3, src4, src5, src6
+    %define lend dword r2m
+    %define src1q r0q
+    %define src1m dword [rsp+32]
+%if HAVE_ALIGNED_STACK == 0
+    DEFINE_ARGS dst, src, src2, src3, src5, src6
+    %define src4q r0q
+    %define src4m dword [rsp+36]
+%endif
+    %define src7q r0q
+    %define src7m dword [rsp+40]
+    mov     dstm, dstq
+%endif
+    mov    src7q, [srcq+7*gprsize]
+    mov    src6q, [srcq+6*gprsize]
+%if ARCH_X86_32
+    mov    src7m, src7q
+%endif
+    mov    src5q, [srcq+5*gprsize]
+    mov    src4q, [srcq+4*gprsize]
+    mov    src3q, [srcq+3*gprsize]
+%if ARCH_X86_32 && HAVE_ALIGNED_STACK == 0
+    mov    src4m, src4q
+%endif
+    mov    src2q, [srcq+2*gprsize]
+    mov    src1q, [srcq+1*gprsize]
+    mov     srcq, [srcq]
+%ifidn %3, a
+%if ARCH_X86_32
+    test dstmp, mmsize-1
+%else
+    test dstq, mmsize-1
+%endif
+        jne pack_8ch_%2_to_%1_u_int %+ SUFFIX
+    test srcq, mmsize-1
+        jne pack_8ch_%2_to_%1_u_int %+ SUFFIX
+    test src1q, mmsize-1
+        jne pack_8ch_%2_to_%1_u_int %+ SUFFIX
+    test src2q, mmsize-1
+        jne pack_8ch_%2_to_%1_u_int %+ SUFFIX
+    test src3q, mmsize-1
+        jne pack_8ch_%2_to_%1_u_int %+ SUFFIX
+%if ARCH_X86_32 && HAVE_ALIGNED_STACK == 0
+    test src4m, mmsize-1
+%else
+    test src4q, mmsize-1
+%endif
+        jne pack_8ch_%2_to_%1_u_int %+ SUFFIX
+    test src5q, mmsize-1
+        jne pack_8ch_%2_to_%1_u_int %+ SUFFIX
+    test src6q, mmsize-1
+        jne pack_8ch_%2_to_%1_u_int %+ SUFFIX
+%if ARCH_X86_32
+    test src7m, mmsize-1
+%else
+    test src7q, mmsize-1
+%endif
+        jne pack_8ch_%2_to_%1_u_int %+ SUFFIX
+%else
+pack_8ch_%2_to_%1_u_int %+ SUFFIX:
+%endif
+    sub    src1q, srcq
+    sub    src2q, srcq
+    sub    src3q, srcq
+%if ARCH_X86_64 || HAVE_ALIGNED_STACK
+    sub    src4q, srcq
+%else
+    sub    src4m, srcq
+%endif
+    sub    src5q, srcq
+    sub    src6q, srcq
+%if ARCH_X86_64
+    sub    src7q, srcq
+%else
+    mov src1m, src1q
+    sub src7m, srcq
+%endif
+
+%if ARCH_X86_64
+    %8 x,x,x,x,m9,x
+%elifidn %1, int32
+    %define m9 [flt2p31]
+%else
+    %define m9 [flt2pm31]
+%endif
+
+.loop:
+    mov%3     m0, [srcq      ]
+    mov%3     m1, [srcq+src1q]
+    mov%3     m2, [srcq+src2q]
+%if ARCH_X86_32 && HAVE_ALIGNED_STACK == 0
+    mov    src4q, src4m
+%endif
+    mov%3     m3, [srcq+src3q]
+    mov%3     m4, [srcq+src4q]
+    mov%3     m5, [srcq+src5q]
+%if ARCH_X86_32
+    mov    src7q, src7m
+%endif
+    mov%3     m6, [srcq+src6q]
+    mov%3     m7, [srcq+src7q]
+
+%if ARCH_X86_64
+    TRANSPOSE8x4D 0, 1, 2, 3, 4, 5, 6, 7, 8
+
+    %7 m0,m1,x,x,m9,m8
+    %7 m2,m3,x,x,m9,m8
+    %7 m4,m5,x,x,m9,m8
+    %7 m6,m7,x,x,m9,m8
+
+    mov%3 [dstq], m0
+%else
+    mov     dstq, dstm
+
+    TRANSPOSE8x4D 0, 1, 2, 3, 4, 5, 6, 7, [rsp], [rsp+16], 1
+
+    %7 m0,m1,x,x,m9,m2
+    mova     m2, [rsp]
+    mov%3   [dstq], m0
+    %7 m2,m3,x,x,m9,m0
+    %7 m4,m5,x,x,m9,m0
+    %7 m6,m7,x,x,m9,m0
+
+%endif
+
+    mov%3 [dstq+16],  m1
+    mov%3 [dstq+32],  m2
+    mov%3 [dstq+48],  m3
+    mov%3 [dstq+64],  m4
+    mov%3 [dstq+80],  m5
+    mov%3 [dstq+96],  m6
+    mov%3 [dstq+112], m7
+
+    add      srcq, mmsize
+    add      dstq, mmsize*8
+%if ARCH_X86_32
+    mov      dstm, dstq
+    mov      src1q, src1m
+%endif
+    sub      lend, mmsize/4
+    jg .loop
+    REP_RET
+%endmacro
+
+%macro INT16_TO_INT32_N 6
+    pxor      m2, m2
+    pxor      m3, m3
+    punpcklwd m2, m1
+    punpckhwd m3, m1
+    SWAP 4,0
+    pxor      m0, m0
+    pxor      m1, m1
+    punpcklwd m0, m4
+    punpckhwd m1, m4
+%endmacro
+
+%macro INT32_TO_INT16_N 6
+    psrad     m0, 16
+    psrad     m1, 16
+    psrad     m2, 16
+    psrad     m3, 16
+    packssdw  m0, m1
+    packssdw  m2, m3
+    SWAP 1,2
+%endmacro
+
+%macro INT32_TO_FLOAT_INIT 6
+    mova      %5, [flt2pm31]
+%endmacro
+%macro INT32_TO_FLOAT_N 6
+    cvtdq2ps  %1, %1
+    cvtdq2ps  %2, %2
+    mulps %1, %1, %5
+    mulps %2, %2, %5
+%endmacro
+
+%macro FLOAT_TO_INT32_INIT 6
+    mova      %5, [flt2p31]
+%endmacro
+%macro FLOAT_TO_INT32_N 6
+    mulps %1, %5
+    mulps %2, %5
+    cvtps2dq  %6, %1
+    cmpps %1, %1, %5, 5
+    paddd %1, %6
+    cvtps2dq  %6, %2
+    cmpps %2, %2, %5, 5
+    paddd %2, %6
+%endmacro
+
+%macro INT16_TO_FLOAT_INIT 6
+    mova      m5, [flt2pm31]
+%endmacro
+%macro INT16_TO_FLOAT_N 6
+    INT16_TO_INT32_N %1,%2,%3,%4,%5,%6
+    cvtdq2ps  m0, m0
+    cvtdq2ps  m1, m1
+    cvtdq2ps  m2, m2
+    cvtdq2ps  m3, m3
+    mulps m0, m0, m5
+    mulps m1, m1, m5
+    mulps m2, m2, m5
+    mulps m3, m3, m5
+%endmacro
+
+%macro FLOAT_TO_INT16_INIT 6
+    mova      m5, [flt2p15]
+%endmacro
+%macro FLOAT_TO_INT16_N 6
+    mulps m0, m5
+    mulps m1, m5
+    mulps m2, m5
+    mulps m3, m5
+    cvtps2dq  m0, m0
+    cvtps2dq  m1, m1
+    packssdw  m0, m1
+    cvtps2dq  m1, m2
+    cvtps2dq  m3, m3
+    packssdw  m1, m3
+%endmacro
+
+%macro NOP_N 0-6
+%endmacro
+
+INIT_MMX mmx
+CONV int32, int16, u, 2, 1, INT16_TO_INT32_N, NOP_N
+CONV int32, int16, a, 2, 1, INT16_TO_INT32_N, NOP_N
+CONV int16, int32, u, 1, 2, INT32_TO_INT16_N, NOP_N
+CONV int16, int32, a, 1, 2, INT32_TO_INT16_N, NOP_N
+
+PACK_6CH float, float, u, 2, 2, 0, NOP_N, NOP_N
+PACK_6CH float, float, a, 2, 2, 0, NOP_N, NOP_N
+
+INIT_XMM sse
+PACK_6CH float, float, u, 2, 2, 7, NOP_N, NOP_N
+PACK_6CH float, float, a, 2, 2, 7, NOP_N, NOP_N
+
+UNPACK_6CH float, float, u, 2, 2, 7, NOP_N, NOP_N
+UNPACK_6CH float, float, a, 2, 2, 7, NOP_N, NOP_N
+
+INIT_XMM sse2
+CONV int32, int16, u, 2, 1, INT16_TO_INT32_N, NOP_N
+CONV int32, int16, a, 2, 1, INT16_TO_INT32_N, NOP_N
+CONV int16, int32, u, 1, 2, INT32_TO_INT16_N, NOP_N
+CONV int16, int32, a, 1, 2, INT32_TO_INT16_N, NOP_N
+
+PACK_2CH int16, int16, u, 1, 1, NOP_N, NOP_N
+PACK_2CH int16, int16, a, 1, 1, NOP_N, NOP_N
+PACK_2CH int32, int32, u, 2, 2, NOP_N, NOP_N
+PACK_2CH int32, int32, a, 2, 2, NOP_N, NOP_N
+PACK_2CH int32, int16, u, 2, 1, INT16_TO_INT32_N, NOP_N
+PACK_2CH int32, int16, a, 2, 1, INT16_TO_INT32_N, NOP_N
+PACK_2CH int16, int32, u, 1, 2, INT32_TO_INT16_N, NOP_N
+PACK_2CH int16, int32, a, 1, 2, INT32_TO_INT16_N, NOP_N
+
+UNPACK_2CH int16, int16, u, 1, 1, NOP_N, NOP_N
+UNPACK_2CH int16, int16, a, 1, 1, NOP_N, NOP_N
+UNPACK_2CH int32, int32, u, 2, 2, NOP_N, NOP_N
+UNPACK_2CH int32, int32, a, 2, 2, NOP_N, NOP_N
+UNPACK_2CH int32, int16, u, 2, 1, INT16_TO_INT32_N, NOP_N
+UNPACK_2CH int32, int16, a, 2, 1, INT16_TO_INT32_N, NOP_N
+UNPACK_2CH int16, int32, u, 1, 2, INT32_TO_INT16_N, NOP_N
+UNPACK_2CH int16, int32, a, 1, 2, INT32_TO_INT16_N, NOP_N
+
+CONV float, int32, u, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+CONV float, int32, a, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+CONV int32, float, u, 2, 2, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+CONV int32, float, a, 2, 2, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+CONV float, int16, u, 2, 1, INT16_TO_FLOAT_N, INT16_TO_FLOAT_INIT
+CONV float, int16, a, 2, 1, INT16_TO_FLOAT_N, INT16_TO_FLOAT_INIT
+CONV int16, float, u, 1, 2, FLOAT_TO_INT16_N, FLOAT_TO_INT16_INIT
+CONV int16, float, a, 1, 2, FLOAT_TO_INT16_N, FLOAT_TO_INT16_INIT
+
+PACK_2CH float, int32, u, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+PACK_2CH float, int32, a, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+PACK_2CH int32, float, u, 2, 2, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+PACK_2CH int32, float, a, 2, 2, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+PACK_2CH float, int16, u, 2, 1, INT16_TO_FLOAT_N, INT16_TO_FLOAT_INIT
+PACK_2CH float, int16, a, 2, 1, INT16_TO_FLOAT_N, INT16_TO_FLOAT_INIT
+PACK_2CH int16, float, u, 1, 2, FLOAT_TO_INT16_N, FLOAT_TO_INT16_INIT
+PACK_2CH int16, float, a, 1, 2, FLOAT_TO_INT16_N, FLOAT_TO_INT16_INIT
+
+UNPACK_2CH float, int32, u, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+UNPACK_2CH float, int32, a, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+UNPACK_2CH int32, float, u, 2, 2, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+UNPACK_2CH int32, float, a, 2, 2, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+UNPACK_2CH float, int16, u, 2, 1, INT16_TO_FLOAT_N, INT16_TO_FLOAT_INIT
+UNPACK_2CH float, int16, a, 2, 1, INT16_TO_FLOAT_N, INT16_TO_FLOAT_INIT
+UNPACK_2CH int16, float, u, 1, 2, FLOAT_TO_INT16_N, FLOAT_TO_INT16_INIT
+UNPACK_2CH int16, float, a, 1, 2, FLOAT_TO_INT16_N, FLOAT_TO_INT16_INIT
+
+PACK_6CH float, int32, u, 2, 2, 8, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+PACK_6CH float, int32, a, 2, 2, 8, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+PACK_6CH int32, float, u, 2, 2, 8, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+PACK_6CH int32, float, a, 2, 2, 8, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+
+UNPACK_6CH float, int32, u, 2, 2, 8, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+UNPACK_6CH float, int32, a, 2, 2, 8, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+UNPACK_6CH int32, float, u, 2, 2, 8, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+UNPACK_6CH int32, float, a, 2, 2, 8, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+
+PACK_8CH float, float, u, 2, 2, 9, NOP_N, NOP_N
+PACK_8CH float, float, a, 2, 2, 9, NOP_N, NOP_N
+
+PACK_8CH float, int32, u, 2, 2, 10, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+PACK_8CH float, int32, a, 2, 2, 10, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+PACK_8CH int32, float, u, 2, 2, 10, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+PACK_8CH int32, float, a, 2, 2, 10, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+
+INIT_XMM ssse3
+UNPACK_2CH int16, int16, u, 1, 1, NOP_N, NOP_N
+UNPACK_2CH int16, int16, a, 1, 1, NOP_N, NOP_N
+UNPACK_2CH int32, int16, u, 2, 1, INT16_TO_INT32_N, NOP_N
+UNPACK_2CH int32, int16, a, 2, 1, INT16_TO_INT32_N, NOP_N
+UNPACK_2CH float, int16, u, 2, 1, INT16_TO_FLOAT_N, INT16_TO_FLOAT_INIT
+UNPACK_2CH float, int16, a, 2, 1, INT16_TO_FLOAT_N, INT16_TO_FLOAT_INIT
+
+%if HAVE_AVX_EXTERNAL
+INIT_XMM avx
+PACK_6CH float, float, u, 2, 2, 8, NOP_N, NOP_N
+PACK_6CH float, float, a, 2, 2, 8, NOP_N, NOP_N
+
+UNPACK_6CH float, float, u, 2, 2, 8, NOP_N, NOP_N
+UNPACK_6CH float, float, a, 2, 2, 8, NOP_N, NOP_N
+
+PACK_6CH float, int32, u, 2, 2, 8, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+PACK_6CH float, int32, a, 2, 2, 8, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+PACK_6CH int32, float, u, 2, 2, 8, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+PACK_6CH int32, float, a, 2, 2, 8, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+
+UNPACK_6CH float, int32, u, 2, 2, 8, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+UNPACK_6CH float, int32, a, 2, 2, 8, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+UNPACK_6CH int32, float, u, 2, 2, 8, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+UNPACK_6CH int32, float, a, 2, 2, 8, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+
+PACK_8CH float, float, u, 2, 2, 9, NOP_N, NOP_N
+PACK_8CH float, float, a, 2, 2, 9, NOP_N, NOP_N
+
+PACK_8CH float, int32, u, 2, 2, 10, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+PACK_8CH float, int32, a, 2, 2, 10, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+PACK_8CH int32, float, u, 2, 2, 10, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+PACK_8CH int32, float, a, 2, 2, 10, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+
+INIT_YMM avx
+CONV float, int32, u, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+CONV float, int32, a, 2, 2, INT32_TO_FLOAT_N, INT32_TO_FLOAT_INIT
+%endif
+
+%if HAVE_AVX2_EXTERNAL
+INIT_YMM avx2
+CONV int32, float, u, 2, 2, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+CONV int32, float, a, 2, 2, FLOAT_TO_INT32_N, FLOAT_TO_INT32_INIT
+%endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/audio_convert_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/audio_convert_init.c
new file mode 100644
index 000000000..bb89cf604
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/audio_convert_init.c
@@ -0,0 +1,181 @@
+/*
+ * Copyright (C) 2012 Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/x86/cpu.h"
+#include "libswresample/swresample_internal.h"
+#include "libswresample/audioconvert.h"
+
+#define PROTO(pre, in, out, cap) void ff ## pre ## in## _to_ ##out## _a_ ##cap(uint8_t **dst, const uint8_t **src, int len);
+#define PROTO2(pre, out, cap) PROTO(pre, int16, out, cap) PROTO(pre, int32, out, cap) PROTO(pre, float, out, cap)
+#define PROTO3(pre, cap) PROTO2(pre, int16, cap) PROTO2(pre, int32, cap) PROTO2(pre, float, cap)
+#define PROTO4(pre) PROTO3(pre, mmx) PROTO3(pre, sse) PROTO3(pre, sse2) PROTO3(pre, ssse3) PROTO3(pre, sse4) PROTO3(pre, avx) PROTO3(pre, avx2)
+PROTO4(_)
+PROTO4(_pack_2ch_)
+PROTO4(_pack_6ch_)
+PROTO4(_pack_8ch_)
+PROTO4(_unpack_2ch_)
+PROTO4(_unpack_6ch_)
+
+av_cold void swri_audio_convert_init_x86(struct AudioConvert *ac,
+                                 enum AVSampleFormat out_fmt,
+                                 enum AVSampleFormat in_fmt,
+                                 int channels){
+    int mm_flags = av_get_cpu_flags();
+
+    ac->simd_f= NULL;
+
+//FIXME add memcpy case
+
+#define MULTI_CAPS_FUNC(flag, cap) \
+    if (EXTERNAL_##flag(mm_flags)) {\
+        if(   out_fmt == AV_SAMPLE_FMT_S32  && in_fmt == AV_SAMPLE_FMT_S16 || out_fmt == AV_SAMPLE_FMT_S32P && in_fmt == AV_SAMPLE_FMT_S16P)\
+            ac->simd_f =  ff_int16_to_int32_a_ ## cap;\
+        if(   out_fmt == AV_SAMPLE_FMT_S16  && in_fmt == AV_SAMPLE_FMT_S32 || out_fmt == AV_SAMPLE_FMT_S16P && in_fmt == AV_SAMPLE_FMT_S32P)\
+            ac->simd_f =  ff_int32_to_int16_a_ ## cap;\
+    }
+
+MULTI_CAPS_FUNC(MMX, mmx)
+MULTI_CAPS_FUNC(SSE2, sse2)
+
+    if(EXTERNAL_MMX(mm_flags)) {
+        if(channels == 6) {
+            if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_FLTP || out_fmt == AV_SAMPLE_FMT_S32 && in_fmt == AV_SAMPLE_FMT_S32P)
+                ac->simd_f =  ff_pack_6ch_float_to_float_a_mmx;
+        }
+    }
+    if(EXTERNAL_SSE(mm_flags)) {
+        if(channels == 6) {
+            if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_FLTP || out_fmt == AV_SAMPLE_FMT_S32 && in_fmt == AV_SAMPLE_FMT_S32P)
+                ac->simd_f =  ff_pack_6ch_float_to_float_a_sse;
+
+            if(   out_fmt == AV_SAMPLE_FMT_FLTP  && in_fmt == AV_SAMPLE_FMT_FLT || out_fmt == AV_SAMPLE_FMT_S32P && in_fmt == AV_SAMPLE_FMT_S32)
+                ac->simd_f =  ff_unpack_6ch_float_to_float_a_sse;
+        }
+    }
+    if(EXTERNAL_SSE2(mm_flags)) {
+        if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_S32 || out_fmt == AV_SAMPLE_FMT_FLTP && in_fmt == AV_SAMPLE_FMT_S32P)
+            ac->simd_f =  ff_int32_to_float_a_sse2;
+        if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_S16 || out_fmt == AV_SAMPLE_FMT_FLTP && in_fmt == AV_SAMPLE_FMT_S16P)
+            ac->simd_f =  ff_int16_to_float_a_sse2;
+        if(   out_fmt == AV_SAMPLE_FMT_S32  && in_fmt == AV_SAMPLE_FMT_FLT || out_fmt == AV_SAMPLE_FMT_S32P && in_fmt == AV_SAMPLE_FMT_FLTP)
+            ac->simd_f =  ff_float_to_int32_a_sse2;
+        if(   out_fmt == AV_SAMPLE_FMT_S16  && in_fmt == AV_SAMPLE_FMT_FLT || out_fmt == AV_SAMPLE_FMT_S16P && in_fmt == AV_SAMPLE_FMT_FLTP)
+            ac->simd_f =  ff_float_to_int16_a_sse2;
+
+        if(channels == 2) {
+            if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_FLTP || out_fmt == AV_SAMPLE_FMT_S32 && in_fmt == AV_SAMPLE_FMT_S32P)
+                ac->simd_f =  ff_pack_2ch_int32_to_int32_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S16  && in_fmt == AV_SAMPLE_FMT_S16P)
+                ac->simd_f =  ff_pack_2ch_int16_to_int16_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S32  && in_fmt == AV_SAMPLE_FMT_S16P)
+                ac->simd_f =  ff_pack_2ch_int16_to_int32_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S16  && in_fmt == AV_SAMPLE_FMT_S32P)
+                ac->simd_f =  ff_pack_2ch_int32_to_int16_a_sse2;
+
+            if(   out_fmt == AV_SAMPLE_FMT_FLTP  && in_fmt == AV_SAMPLE_FMT_FLT || out_fmt == AV_SAMPLE_FMT_S32P && in_fmt == AV_SAMPLE_FMT_S32)
+                ac->simd_f =  ff_unpack_2ch_int32_to_int32_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S16P  && in_fmt == AV_SAMPLE_FMT_S16)
+                ac->simd_f =  ff_unpack_2ch_int16_to_int16_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S32P  && in_fmt == AV_SAMPLE_FMT_S16)
+                ac->simd_f =  ff_unpack_2ch_int16_to_int32_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S16P  && in_fmt == AV_SAMPLE_FMT_S32)
+                ac->simd_f =  ff_unpack_2ch_int32_to_int16_a_sse2;
+
+            if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_S32P)
+                ac->simd_f =  ff_pack_2ch_int32_to_float_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S32  && in_fmt == AV_SAMPLE_FMT_FLTP)
+                ac->simd_f =  ff_pack_2ch_float_to_int32_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_S16P)
+                ac->simd_f =  ff_pack_2ch_int16_to_float_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S16  && in_fmt == AV_SAMPLE_FMT_FLTP)
+                ac->simd_f =  ff_pack_2ch_float_to_int16_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_FLTP  && in_fmt == AV_SAMPLE_FMT_S32)
+                ac->simd_f =  ff_unpack_2ch_int32_to_float_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S32P  && in_fmt == AV_SAMPLE_FMT_FLT)
+                ac->simd_f =  ff_unpack_2ch_float_to_int32_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_FLTP  && in_fmt == AV_SAMPLE_FMT_S16)
+                ac->simd_f =  ff_unpack_2ch_int16_to_float_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S16P  && in_fmt == AV_SAMPLE_FMT_FLT)
+                ac->simd_f =  ff_unpack_2ch_float_to_int16_a_sse2;
+        }
+        if(channels == 6) {
+            if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_S32P)
+                ac->simd_f =  ff_pack_6ch_int32_to_float_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S32  && in_fmt == AV_SAMPLE_FMT_FLTP)
+                ac->simd_f =  ff_pack_6ch_float_to_int32_a_sse2;
+
+            if(   out_fmt == AV_SAMPLE_FMT_FLTP  && in_fmt == AV_SAMPLE_FMT_S32)
+                ac->simd_f =  ff_unpack_6ch_int32_to_float_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S32P  && in_fmt == AV_SAMPLE_FMT_FLT)
+                ac->simd_f =  ff_unpack_6ch_float_to_int32_a_sse2;
+        }
+        if(channels == 8) {
+            if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_FLTP || out_fmt == AV_SAMPLE_FMT_S32 && in_fmt == AV_SAMPLE_FMT_S32P)
+                ac->simd_f =  ff_pack_8ch_float_to_float_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_S32P)
+                ac->simd_f =  ff_pack_8ch_int32_to_float_a_sse2;
+            if(   out_fmt == AV_SAMPLE_FMT_S32  && in_fmt == AV_SAMPLE_FMT_FLTP)
+                ac->simd_f =  ff_pack_8ch_float_to_int32_a_sse2;
+        }
+    }
+    if(EXTERNAL_SSSE3(mm_flags)) {
+        if(channels == 2) {
+            if(   out_fmt == AV_SAMPLE_FMT_S16P  && in_fmt == AV_SAMPLE_FMT_S16)
+                ac->simd_f =  ff_unpack_2ch_int16_to_int16_a_ssse3;
+            if(   out_fmt == AV_SAMPLE_FMT_S32P  && in_fmt == AV_SAMPLE_FMT_S16)
+                ac->simd_f =  ff_unpack_2ch_int16_to_int32_a_ssse3;
+            if(   out_fmt == AV_SAMPLE_FMT_FLTP  && in_fmt == AV_SAMPLE_FMT_S16)
+                ac->simd_f =  ff_unpack_2ch_int16_to_float_a_ssse3;
+        }
+    }
+    if(EXTERNAL_AVX_FAST(mm_flags)) {
+        if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_S32 || out_fmt == AV_SAMPLE_FMT_FLTP && in_fmt == AV_SAMPLE_FMT_S32P)
+            ac->simd_f =  ff_int32_to_float_a_avx;
+    }
+    if(EXTERNAL_AVX(mm_flags)) {
+        if(channels == 6) {
+            if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_FLTP || out_fmt == AV_SAMPLE_FMT_S32 && in_fmt == AV_SAMPLE_FMT_S32P)
+                ac->simd_f =  ff_pack_6ch_float_to_float_a_avx;
+            if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_S32P)
+                ac->simd_f =  ff_pack_6ch_int32_to_float_a_avx;
+            if(   out_fmt == AV_SAMPLE_FMT_S32  && in_fmt == AV_SAMPLE_FMT_FLTP)
+                ac->simd_f =  ff_pack_6ch_float_to_int32_a_avx;
+
+            if(   out_fmt == AV_SAMPLE_FMT_FLTP  && in_fmt == AV_SAMPLE_FMT_FLT || out_fmt == AV_SAMPLE_FMT_S32P && in_fmt == AV_SAMPLE_FMT_S32)
+                ac->simd_f =  ff_unpack_6ch_float_to_float_a_avx;
+            if(   out_fmt == AV_SAMPLE_FMT_FLTP  && in_fmt == AV_SAMPLE_FMT_S32)
+                ac->simd_f =  ff_unpack_6ch_int32_to_float_a_avx;
+            if(   out_fmt == AV_SAMPLE_FMT_S32P  && in_fmt == AV_SAMPLE_FMT_FLT)
+                ac->simd_f =  ff_unpack_6ch_float_to_int32_a_avx;
+        }
+        if(channels == 8) {
+            if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_FLTP || out_fmt == AV_SAMPLE_FMT_S32 && in_fmt == AV_SAMPLE_FMT_S32P)
+                ac->simd_f =  ff_pack_8ch_float_to_float_a_avx;
+            if(   out_fmt == AV_SAMPLE_FMT_FLT  && in_fmt == AV_SAMPLE_FMT_S32P)
+                ac->simd_f =  ff_pack_8ch_int32_to_float_a_avx;
+            if(   out_fmt == AV_SAMPLE_FMT_S32  && in_fmt == AV_SAMPLE_FMT_FLTP)
+                ac->simd_f =  ff_pack_8ch_float_to_int32_a_avx;
+        }
+    }
+    if(EXTERNAL_AVX2_FAST(mm_flags)) {
+        if(   out_fmt == AV_SAMPLE_FMT_S32  && in_fmt == AV_SAMPLE_FMT_FLT || out_fmt == AV_SAMPLE_FMT_S32P && in_fmt == AV_SAMPLE_FMT_FLTP)
+            ac->simd_f =  ff_float_to_int32_a_avx2;
+    }
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/rematrix.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/rematrix.asm
new file mode 100644
index 000000000..7984b9a72
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/rematrix.asm
@@ -0,0 +1,250 @@
+;******************************************************************************
+;* Copyright (c) 2012 Michael Niedermayer
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+
+SECTION_RODATA 32
+dw1: times 8  dd 1
+w1 : times 16 dw 1
+
+SECTION .text
+
+%macro MIX2_FLT 1
+cglobal mix_2_1_%1_float, 7, 7, 6, out, in1, in2, coeffp, index1, index2, len
+%ifidn %1, a
+    test in1q, mmsize-1
+        jne mix_2_1_float_u_int %+ SUFFIX
+    test in2q, mmsize-1
+        jne mix_2_1_float_u_int %+ SUFFIX
+    test outq, mmsize-1
+        jne mix_2_1_float_u_int %+ SUFFIX
+%else
+mix_2_1_float_u_int %+ SUFFIX:
+%endif
+    VBROADCASTSS m4, [coeffpq + 4*index1q]
+    VBROADCASTSS m5, [coeffpq + 4*index2q]
+    shl lend    , 2
+    add in1q    , lenq
+    add in2q    , lenq
+    add outq    , lenq
+    neg lenq
+.next:
+%ifidn %1, a
+    mulps        m0, m4, [in1q + lenq         ]
+    mulps        m1, m5, [in2q + lenq         ]
+    mulps        m2, m4, [in1q + lenq + mmsize]
+    mulps        m3, m5, [in2q + lenq + mmsize]
+%else
+    movu         m0, [in1q + lenq         ]
+    movu         m1, [in2q + lenq         ]
+    movu         m2, [in1q + lenq + mmsize]
+    movu         m3, [in2q + lenq + mmsize]
+    mulps        m0, m0, m4
+    mulps        m1, m1, m5
+    mulps        m2, m2, m4
+    mulps        m3, m3, m5
+%endif
+    addps        m0, m0, m1
+    addps        m2, m2, m3
+    mov%1  [outq + lenq         ], m0
+    mov%1  [outq + lenq + mmsize], m2
+    add        lenq, mmsize*2
+        jl .next
+    REP_RET
+%endmacro
+
+%macro MIX1_FLT 1
+cglobal mix_1_1_%1_float, 5, 5, 3, out, in, coeffp, index, len
+%ifidn %1, a
+    test inq, mmsize-1
+        jne mix_1_1_float_u_int %+ SUFFIX
+    test outq, mmsize-1
+        jne mix_1_1_float_u_int %+ SUFFIX
+%else
+mix_1_1_float_u_int %+ SUFFIX:
+%endif
+    VBROADCASTSS m2, [coeffpq + 4*indexq]
+    shl lenq    , 2
+    add inq     , lenq
+    add outq    , lenq
+    neg lenq
+.next:
+%ifidn %1, a
+    mulps        m0, m2, [inq + lenq         ]
+    mulps        m1, m2, [inq + lenq + mmsize]
+%else
+    movu         m0, [inq + lenq         ]
+    movu         m1, [inq + lenq + mmsize]
+    mulps        m0, m0, m2
+    mulps        m1, m1, m2
+%endif
+    mov%1  [outq + lenq         ], m0
+    mov%1  [outq + lenq + mmsize], m1
+    add        lenq, mmsize*2
+        jl .next
+    REP_RET
+%endmacro
+
+%macro MIX1_INT16 1
+cglobal mix_1_1_%1_int16, 5, 5, 6, out, in, coeffp, index, len
+%ifidn %1, a
+    test inq, mmsize-1
+        jne mix_1_1_int16_u_int %+ SUFFIX
+    test outq, mmsize-1
+        jne mix_1_1_int16_u_int %+ SUFFIX
+%else
+mix_1_1_int16_u_int %+ SUFFIX:
+%endif
+    movd   m4, [coeffpq + 4*indexq]
+    SPLATW m5, m4
+    psllq  m4, 32
+    psrlq  m4, 48
+    mova   m0, [w1]
+    psllw  m0, m4
+    psrlw  m0, 1
+    punpcklwd m5, m0
+    add lenq    , lenq
+    add inq     , lenq
+    add outq    , lenq
+    neg lenq
+.next:
+    mov%1        m0, [inq + lenq         ]
+    mov%1        m2, [inq + lenq + mmsize]
+    mova         m1, m0
+    mova         m3, m2
+    punpcklwd    m0, [w1]
+    punpckhwd    m1, [w1]
+    punpcklwd    m2, [w1]
+    punpckhwd    m3, [w1]
+    pmaddwd      m0, m5
+    pmaddwd      m1, m5
+    pmaddwd      m2, m5
+    pmaddwd      m3, m5
+    psrad        m0, m4
+    psrad        m1, m4
+    psrad        m2, m4
+    psrad        m3, m4
+    packssdw     m0, m1
+    packssdw     m2, m3
+    mov%1  [outq + lenq         ], m0
+    mov%1  [outq + lenq + mmsize], m2
+    add        lenq, mmsize*2
+        jl .next
+%if mmsize == 8
+    emms
+    RET
+%else
+    REP_RET
+%endif
+%endmacro
+
+%macro MIX2_INT16 1
+cglobal mix_2_1_%1_int16, 7, 7, 8, out, in1, in2, coeffp, index1, index2, len
+%ifidn %1, a
+    test in1q, mmsize-1
+        jne mix_2_1_int16_u_int %+ SUFFIX
+    test in2q, mmsize-1
+        jne mix_2_1_int16_u_int %+ SUFFIX
+    test outq, mmsize-1
+        jne mix_2_1_int16_u_int %+ SUFFIX
+%else
+mix_2_1_int16_u_int %+ SUFFIX:
+%endif
+    movd   m4, [coeffpq + 4*index1q]
+    movd   m6, [coeffpq + 4*index2q]
+    SPLATW m5, m4
+    SPLATW m6, m6
+    psllq  m4, 32
+    psrlq  m4, 48
+    mova   m7, [dw1]
+    pslld  m7, m4
+    psrld  m7, 1
+    punpcklwd m5, m6
+    add lend    , lend
+    add in1q    , lenq
+    add in2q    , lenq
+    add outq    , lenq
+    neg lenq
+.next:
+    mov%1        m0, [in1q + lenq         ]
+    mov%1        m2, [in2q + lenq         ]
+    mova         m1, m0
+    punpcklwd    m0, m2
+    punpckhwd    m1, m2
+
+    mov%1        m2, [in1q + lenq + mmsize]
+    mov%1        m6, [in2q + lenq + mmsize]
+    mova         m3, m2
+    punpcklwd    m2, m6
+    punpckhwd    m3, m6
+
+    pmaddwd      m0, m5
+    pmaddwd      m1, m5
+    pmaddwd      m2, m5
+    pmaddwd      m3, m5
+    paddd        m0, m7
+    paddd        m1, m7
+    paddd        m2, m7
+    paddd        m3, m7
+    psrad        m0, m4
+    psrad        m1, m4
+    psrad        m2, m4
+    psrad        m3, m4
+    packssdw     m0, m1
+    packssdw     m2, m3
+    mov%1  [outq + lenq         ], m0
+    mov%1  [outq + lenq + mmsize], m2
+    add        lenq, mmsize*2
+        jl .next
+%if mmsize == 8
+    emms
+    RET
+%else
+    REP_RET
+%endif
+%endmacro
+
+
+INIT_MMX mmx
+MIX1_INT16 u
+MIX1_INT16 a
+MIX2_INT16 u
+MIX2_INT16 a
+
+INIT_XMM sse
+MIX2_FLT u
+MIX2_FLT a
+MIX1_FLT u
+MIX1_FLT a
+
+INIT_XMM sse2
+MIX1_INT16 u
+MIX1_INT16 a
+MIX2_INT16 u
+MIX2_INT16 a
+
+%if HAVE_AVX_EXTERNAL
+INIT_YMM avx
+MIX2_FLT u
+MIX2_FLT a
+MIX1_FLT u
+MIX1_FLT a
+%endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/rematrix_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/rematrix_init.c
new file mode 100644
index 000000000..d6616f83b
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/rematrix_init.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2012 Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/x86/cpu.h"
+#include "libswresample/swresample_internal.h"
+
+#define D(type, simd) \
+mix_1_1_func_type ff_mix_1_1_a_## type ## _ ## simd;\
+mix_2_1_func_type ff_mix_2_1_a_## type ## _ ## simd;
+
+D(float, sse)
+D(float, avx)
+D(int16, mmx)
+D(int16, sse2)
+
+av_cold int swri_rematrix_init_x86(struct SwrContext *s){
+#if HAVE_X86ASM
+    int mm_flags = av_get_cpu_flags();
+    int nb_in  = s->used_ch_count;
+    int nb_out = s->out.ch_count;
+    int num    = nb_in * nb_out;
+    int i,j;
+
+    s->mix_1_1_simd = NULL;
+    s->mix_2_1_simd = NULL;
+
+    if (s->midbuf.fmt == AV_SAMPLE_FMT_S16P){
+        if(EXTERNAL_MMX(mm_flags)) {
+            s->mix_1_1_simd = ff_mix_1_1_a_int16_mmx;
+            s->mix_2_1_simd = ff_mix_2_1_a_int16_mmx;
+        }
+        if(EXTERNAL_SSE2(mm_flags)) {
+            s->mix_1_1_simd = ff_mix_1_1_a_int16_sse2;
+            s->mix_2_1_simd = ff_mix_2_1_a_int16_sse2;
+        }
+        s->native_simd_matrix = av_mallocz_array(num,  2 * sizeof(int16_t));
+        s->native_simd_one    = av_mallocz(2 * sizeof(int16_t));
+        if (!s->native_simd_matrix || !s->native_simd_one)
+            return AVERROR(ENOMEM);
+
+        for(i=0; i<nb_out; i++){
+            int sh = 0;
+            for(j=0; j<nb_in; j++)
+                sh = FFMAX(sh, FFABS(((int*)s->native_matrix)[i * nb_in + j]));
+            sh = FFMAX(av_log2(sh) - 14, 0);
+            for(j=0; j<nb_in; j++) {
+                ((int16_t*)s->native_simd_matrix)[2*(i * nb_in + j)+1] = 15 - sh;
+                ((int16_t*)s->native_simd_matrix)[2*(i * nb_in + j)] =
+                    ((((int*)s->native_matrix)[i * nb_in + j]) + (1<<sh>>1)) >> sh;
+            }
+        }
+        ((int16_t*)s->native_simd_one)[1] = 14;
+        ((int16_t*)s->native_simd_one)[0] = 16384;
+    } else if(s->midbuf.fmt == AV_SAMPLE_FMT_FLTP){
+        if(EXTERNAL_SSE(mm_flags)) {
+            s->mix_1_1_simd = ff_mix_1_1_a_float_sse;
+            s->mix_2_1_simd = ff_mix_2_1_a_float_sse;
+        }
+        if(EXTERNAL_AVX_FAST(mm_flags)) {
+            s->mix_1_1_simd = ff_mix_1_1_a_float_avx;
+            s->mix_2_1_simd = ff_mix_2_1_a_float_avx;
+        }
+        s->native_simd_matrix = av_mallocz_array(num, sizeof(float));
+        s->native_simd_one = av_mallocz(sizeof(float));
+        if (!s->native_simd_matrix || !s->native_simd_one)
+            return AVERROR(ENOMEM);
+        memcpy(s->native_simd_matrix, s->native_matrix, num * sizeof(float));
+        memcpy(s->native_simd_one, s->native_one, sizeof(float));
+    }
+#endif
+
+    return 0;
+}
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/resample.asm b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/resample.asm
new file mode 100644
index 000000000..7107cf9d4
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/resample.asm
@@ -0,0 +1,619 @@
+;******************************************************************************
+;* Copyright (c) 2012 Michael Niedermayer
+;* Copyright (c) 2014 James Almer <jamrial <at> gmail.com>
+;* Copyright (c) 2014 Ronald S. Bultje <rsbultje@gmail.com>
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+%if ARCH_X86_64
+%define pointer resq
+%else
+%define pointer resd
+%endif
+
+struc ResampleContext
+    .av_class:              pointer 1
+    .filter_bank:           pointer 1
+    .filter_length:         resd 1
+    .filter_alloc:          resd 1
+    .ideal_dst_incr:        resd 1
+    .dst_incr:              resd 1
+    .dst_incr_div:          resd 1
+    .dst_incr_mod:          resd 1
+    .index:                 resd 1
+    .frac:                  resd 1
+    .src_incr:              resd 1
+    .compensation_distance: resd 1
+    .phase_count:           resd 1
+
+    ; there's a few more here but we only care about the first few
+endstruc
+
+SECTION_RODATA
+
+pf_1:      dd 1.0
+pdbl_1:    dq 1.0
+pd_0x4000: dd 0x4000
+
+SECTION .text
+
+; FIXME remove unneeded variables (index_incr, phase_mask)
+%macro RESAMPLE_FNS 3-5 ; format [float or int16], bps, log2_bps, float op suffix [s or d], 1.0 constant
+; int resample_common_$format(ResampleContext *ctx, $format *dst,
+;                             const $format *src, int size, int update_ctx)
+%if ARCH_X86_64 ; unix64 and win64
+cglobal resample_common_%1, 0, 15, 2, ctx, dst, src, phase_count, index, frac, \
+                                      dst_incr_mod, size, min_filter_count_x4, \
+                                      min_filter_len_x4, dst_incr_div, src_incr, \
+                                      phase_mask, dst_end, filter_bank
+
+    ; use red-zone for variable storage
+%define ctx_stackq            [rsp-0x8]
+%define src_stackq            [rsp-0x10]
+%if WIN64
+%define update_context_stackd r4m
+%else ; unix64
+%define update_context_stackd [rsp-0x14]
+%endif
+
+    ; load as many variables in registers as possible; for the rest, store
+    ; on stack so that we have 'ctx' available as one extra register
+    mov                        sized, r3d
+%if UNIX64
+    mov        update_context_stackd, r4d
+%endif
+    mov                       indexd, [ctxq+ResampleContext.index]
+    mov                        fracd, [ctxq+ResampleContext.frac]
+    mov                dst_incr_modd, [ctxq+ResampleContext.dst_incr_mod]
+    mov                 filter_bankq, [ctxq+ResampleContext.filter_bank]
+    mov                    src_incrd, [ctxq+ResampleContext.src_incr]
+    mov                   ctx_stackq, ctxq
+    mov           min_filter_len_x4d, [ctxq+ResampleContext.filter_length]
+    mov                dst_incr_divd, [ctxq+ResampleContext.dst_incr_div]
+    shl           min_filter_len_x4d, %3
+    lea                     dst_endq, [dstq+sizeq*%2]
+
+%if UNIX64
+    mov                          ecx, [ctxq+ResampleContext.phase_count]
+    mov                          edi, [ctxq+ResampleContext.filter_alloc]
+
+    DEFINE_ARGS filter_alloc, dst, src, phase_count, index, frac, dst_incr_mod, \
+                filter, min_filter_count_x4, min_filter_len_x4, dst_incr_div, \
+                src_incr, phase_mask, dst_end, filter_bank
+%elif WIN64
+    mov                          R9d, [ctxq+ResampleContext.filter_alloc]
+    mov                          ecx, [ctxq+ResampleContext.phase_count]
+
+    DEFINE_ARGS phase_count, dst, src, filter_alloc, index, frac, dst_incr_mod, \
+                filter, min_filter_count_x4, min_filter_len_x4, dst_incr_div, \
+                src_incr, phase_mask, dst_end, filter_bank
+%endif
+
+    neg           min_filter_len_x4q
+    sub                 filter_bankq, min_filter_len_x4q
+    sub                         srcq, min_filter_len_x4q
+    mov                   src_stackq, srcq
+%else ; x86-32
+cglobal resample_common_%1, 1, 7, 2, ctx, phase_count, dst, frac, \
+                                     index, min_filter_length_x4, filter_bank
+
+    ; push temp variables to stack
+%define ctx_stackq            r0mp
+%define src_stackq            r2mp
+%define update_context_stackd r4m
+
+    mov                         dstq, r1mp
+    mov                           r3, r3mp
+    lea                           r3, [dstq+r3*%2]
+    PUSH                              dword [ctxq+ResampleContext.dst_incr_div]
+    PUSH                              dword [ctxq+ResampleContext.dst_incr_mod]
+    PUSH                              dword [ctxq+ResampleContext.filter_alloc]
+    PUSH                              r3
+    PUSH                              dword [ctxq+ResampleContext.phase_count]  ; unneeded replacement for phase_mask
+    PUSH                              dword [ctxq+ResampleContext.src_incr]
+    mov        min_filter_length_x4d, [ctxq+ResampleContext.filter_length]
+    mov                       indexd, [ctxq+ResampleContext.index]
+    shl        min_filter_length_x4d, %3
+    mov                        fracd, [ctxq+ResampleContext.frac]
+    neg        min_filter_length_x4q
+    mov                 filter_bankq, [ctxq+ResampleContext.filter_bank]
+    sub                         r2mp, min_filter_length_x4q
+    sub                 filter_bankq, min_filter_length_x4q
+    PUSH                              min_filter_length_x4q
+    PUSH                              filter_bankq
+    mov                 phase_countd, [ctxq+ResampleContext.phase_count]
+
+    DEFINE_ARGS src, phase_count, dst, frac, index, min_filter_count_x4, filter
+
+%define filter_bankq          dword [rsp+0x0]
+%define min_filter_length_x4q dword [rsp+0x4]
+%define src_incrd             dword [rsp+0x8]
+%define phase_maskd           dword [rsp+0xc]
+%define dst_endq              dword [rsp+0x10]
+%define filter_allocd         dword [rsp+0x14]
+%define dst_incr_modd         dword [rsp+0x18]
+%define dst_incr_divd         dword [rsp+0x1c]
+
+    mov                         srcq, r2mp
+%endif
+
+.loop:
+    mov                      filterd, filter_allocd
+    imul                     filterd, indexd
+%if ARCH_X86_64
+    mov         min_filter_count_x4q, min_filter_len_x4q
+    lea                      filterq, [filter_bankq+filterq*%2]
+%else ; x86-32
+    mov         min_filter_count_x4q, filter_bankq
+    lea                      filterq, [min_filter_count_x4q+filterq*%2]
+    mov         min_filter_count_x4q, min_filter_length_x4q
+%endif
+%ifidn %1, int16
+    movd                          m0, [pd_0x4000]
+%else ; float/double
+    xorps                         m0, m0, m0
+%endif
+
+    align 16
+.inner_loop:
+    movu                          m1, [srcq+min_filter_count_x4q*1]
+%ifidn %1, int16
+%if cpuflag(xop)
+    vpmadcswd                     m0, m1, [filterq+min_filter_count_x4q*1], m0
+%else
+    pmaddwd                       m1, [filterq+min_filter_count_x4q*1]
+    paddd                         m0, m1
+%endif
+%else ; float/double
+%if cpuflag(fma4) || cpuflag(fma3)
+    fmaddp%4                      m0, m1, [filterq+min_filter_count_x4q*1], m0
+%else
+    mulp%4                        m1, m1, [filterq+min_filter_count_x4q*1]
+    addp%4                        m0, m0, m1
+%endif ; cpuflag
+%endif
+    add         min_filter_count_x4q, mmsize
+    js .inner_loop
+
+%ifidn %1, int16
+    HADDD                         m0, m1
+    psrad                         m0, 15
+    add                        fracd, dst_incr_modd
+    packssdw                      m0, m0
+    add                       indexd, dst_incr_divd
+    movd                      [dstq], m0
+%else ; float/double
+    ; horizontal sum & store
+%if mmsize == 32
+    vextractf128                 xm1, m0, 0x1
+    addp%4                       xm0, xm1
+%endif
+    movhlps                      xm1, xm0
+%ifidn %1, float
+    addps                        xm0, xm1
+    shufps                       xm1, xm0, xm0, q0001
+%endif
+    add                        fracd, dst_incr_modd
+    addp%4                       xm0, xm1
+    add                       indexd, dst_incr_divd
+    movs%4                    [dstq], xm0
+%endif
+    cmp                        fracd, src_incrd
+    jl .skip
+    sub                        fracd, src_incrd
+    inc                       indexd
+
+%if UNIX64
+    DEFINE_ARGS filter_alloc, dst, src, phase_count, index, frac, dst_incr_mod, \
+                index_incr, min_filter_count_x4, min_filter_len_x4, dst_incr_div, \
+                src_incr, phase_mask, dst_end, filter_bank
+%elif WIN64
+    DEFINE_ARGS phase_count, dst, src, filter_alloc, index, frac, dst_incr_mod, \
+                index_incr, min_filter_count_x4, min_filter_len_x4, dst_incr_div, \
+                src_incr, phase_mask, dst_end, filter_bank
+%else ; x86-32
+    DEFINE_ARGS src, phase_count, dst, frac, index, index_incr
+%endif
+
+.skip:
+    add                         dstq, %2
+    cmp                       indexd, phase_countd
+    jb .index_skip
+.index_while:
+    sub                       indexd, phase_countd
+    lea                         srcq, [srcq+%2]
+    cmp                       indexd, phase_countd
+    jnb .index_while
+.index_skip:
+    cmp                         dstq, dst_endq
+    jne .loop
+
+%if ARCH_X86_64
+    DEFINE_ARGS ctx, dst, src, phase_count, index, frac
+%else ; x86-32
+    DEFINE_ARGS src, ctx, update_context, frac, index
+%endif
+
+    cmp  dword update_context_stackd, 0
+    jz .skip_store
+    ; strictly speaking, the function should always return the consumed
+    ; number of bytes; however, we only use the value if update_context
+    ; is true, so let's just leave it uninitialized otherwise
+    mov                         ctxq, ctx_stackq
+    movifnidn                    rax, srcq
+    mov [ctxq+ResampleContext.frac ], fracd
+    sub                          rax, src_stackq
+    mov [ctxq+ResampleContext.index], indexd
+    shr                          rax, %3
+
+.skip_store:
+%if ARCH_X86_32
+    ADD                          rsp, 0x20
+%endif
+    RET
+
+; int resample_linear_$format(ResampleContext *ctx, float *dst,
+;                             const float *src, int size, int update_ctx)
+%if ARCH_X86_64 ; unix64 and win64
+%if UNIX64
+cglobal resample_linear_%1, 0, 15, 5, ctx, dst, phase_mask, phase_count, index, frac, \
+                                      size, dst_incr_mod, min_filter_count_x4, \
+                                      min_filter_len_x4, dst_incr_div, src_incr, \
+                                      src, dst_end, filter_bank
+
+    mov                         srcq, r2mp
+%else ; win64
+cglobal resample_linear_%1, 0, 15, 5, ctx, phase_mask, src, phase_count, index, frac, \
+                                      size, dst_incr_mod, min_filter_count_x4, \
+                                      min_filter_len_x4, dst_incr_div, src_incr, \
+                                      dst, dst_end, filter_bank
+
+    mov                         dstq, r1mp
+%endif
+
+    ; use red-zone for variable storage
+%define ctx_stackq            [rsp-0x8]
+%define src_stackq            [rsp-0x10]
+%define phase_mask_stackd     [rsp-0x14]
+%if WIN64
+%define update_context_stackd r4m
+%else ; unix64
+%define update_context_stackd [rsp-0x18]
+%endif
+
+    ; load as many variables in registers as possible; for the rest, store
+    ; on stack so that we have 'ctx' available as one extra register
+    mov                        sized, r3d
+%if UNIX64
+    mov        update_context_stackd, r4d
+%endif
+    mov                       indexd, [ctxq+ResampleContext.index]
+    mov                        fracd, [ctxq+ResampleContext.frac]
+    mov                dst_incr_modd, [ctxq+ResampleContext.dst_incr_mod]
+    mov                 filter_bankq, [ctxq+ResampleContext.filter_bank]
+    mov                    src_incrd, [ctxq+ResampleContext.src_incr]
+    mov                   ctx_stackq, ctxq
+    mov           min_filter_len_x4d, [ctxq+ResampleContext.filter_length]
+%ifidn %1, int16
+    movd                          m4, [pd_0x4000]
+%else ; float/double
+    cvtsi2s%4                    xm0, src_incrd
+    movs%4                       xm4, [%5]
+    divs%4                       xm4, xm0
+%endif
+    mov                dst_incr_divd, [ctxq+ResampleContext.dst_incr_div]
+    shl           min_filter_len_x4d, %3
+    lea                     dst_endq, [dstq+sizeq*%2]
+
+%if UNIX64
+    mov                          ecx, [ctxq+ResampleContext.phase_count]
+    mov                          edi, [ctxq+ResampleContext.filter_alloc]
+
+    DEFINE_ARGS filter_alloc, dst, filter2, phase_count, index, frac, filter1, \
+                dst_incr_mod, min_filter_count_x4, min_filter_len_x4, \
+                dst_incr_div, src_incr, src, dst_end, filter_bank
+%elif WIN64
+    mov                          R9d, [ctxq+ResampleContext.filter_alloc]
+    mov                          ecx, [ctxq+ResampleContext.phase_count]
+
+    DEFINE_ARGS phase_count, filter2, src, filter_alloc, index, frac, filter1, \
+                dst_incr_mod, min_filter_count_x4, min_filter_len_x4, \
+                dst_incr_div, src_incr, dst, dst_end, filter_bank
+%endif
+
+    neg           min_filter_len_x4q
+    sub                 filter_bankq, min_filter_len_x4q
+    sub                         srcq, min_filter_len_x4q
+    mov                   src_stackq, srcq
+%else ; x86-32
+cglobal resample_linear_%1, 1, 7, 5, ctx, min_filter_length_x4, filter2, \
+                                     frac, index, dst, filter_bank
+
+    ; push temp variables to stack
+%define ctx_stackq            r0mp
+%define src_stackq            r2mp
+%define update_context_stackd r4m
+
+    mov                         dstq, r1mp
+    mov                           r3, r3mp
+    lea                           r3, [dstq+r3*%2]
+    PUSH                              dword [ctxq+ResampleContext.dst_incr_div]
+    PUSH                              r3
+    mov                           r3, dword [ctxq+ResampleContext.filter_alloc]
+    PUSH                              dword [ctxq+ResampleContext.dst_incr_mod]
+    PUSH                              r3
+    shl                           r3, %3
+    PUSH                              r3
+    mov                           r3, dword [ctxq+ResampleContext.src_incr]
+    PUSH                              dword [ctxq+ResampleContext.phase_count]  ; unneeded replacement of phase_mask
+    PUSH                              r3d
+%ifidn %1, int16
+    movd                          m4, [pd_0x4000]
+%else ; float/double
+    cvtsi2s%4                    xm0, r3d
+    movs%4                       xm4, [%5]
+    divs%4                       xm4, xm0
+%endif
+    mov        min_filter_length_x4d, [ctxq+ResampleContext.filter_length]
+    mov                       indexd, [ctxq+ResampleContext.index]
+    shl        min_filter_length_x4d, %3
+    mov                        fracd, [ctxq+ResampleContext.frac]
+    neg        min_filter_length_x4q
+    mov                 filter_bankq, [ctxq+ResampleContext.filter_bank]
+    sub                         r2mp, min_filter_length_x4q
+    sub                 filter_bankq, min_filter_length_x4q
+    PUSH                              min_filter_length_x4q
+    PUSH                              filter_bankq
+    PUSH                              dword [ctxq+ResampleContext.phase_count]
+
+    DEFINE_ARGS filter1, min_filter_count_x4, filter2, frac, index, dst, src
+
+%define phase_count_stackd    dword [rsp+0x0]
+%define filter_bankq          dword [rsp+0x4]
+%define min_filter_length_x4q dword [rsp+0x8]
+%define src_incrd             dword [rsp+0xc]
+%define phase_mask_stackd     dword [rsp+0x10]
+%define filter_alloc_x4q      dword [rsp+0x14]
+%define filter_allocd         dword [rsp+0x18]
+%define dst_incr_modd         dword [rsp+0x1c]
+%define dst_endq              dword [rsp+0x20]
+%define dst_incr_divd         dword [rsp+0x24]
+
+    mov                         srcq, r2mp
+%endif
+
+.loop:
+    mov                     filter1d, filter_allocd
+    imul                    filter1d, indexd
+%if ARCH_X86_64
+    mov         min_filter_count_x4q, min_filter_len_x4q
+    lea                     filter1q, [filter_bankq+filter1q*%2]
+    lea                     filter2q, [filter1q+filter_allocq*%2]
+%else ; x86-32
+    mov         min_filter_count_x4q, filter_bankq
+    lea                     filter1q, [min_filter_count_x4q+filter1q*%2]
+    mov         min_filter_count_x4q, min_filter_length_x4q
+    mov                     filter2q, filter1q
+    add                     filter2q, filter_alloc_x4q
+%endif
+%ifidn %1, int16
+    mova                          m0, m4
+    mova                          m2, m4
+%else ; float/double
+    xorps                         m0, m0, m0
+    xorps                         m2, m2, m2
+%endif
+
+    align 16
+.inner_loop:
+    movu                          m1, [srcq+min_filter_count_x4q*1]
+%ifidn %1, int16
+%if cpuflag(xop)
+    vpmadcswd                     m2, m1, [filter2q+min_filter_count_x4q*1], m2
+    vpmadcswd                     m0, m1, [filter1q+min_filter_count_x4q*1], m0
+%else
+    pmaddwd                       m3, m1, [filter2q+min_filter_count_x4q*1]
+    pmaddwd                       m1, [filter1q+min_filter_count_x4q*1]
+    paddd                         m2, m3
+    paddd                         m0, m1
+%endif ; cpuflag
+%else ; float/double
+%if cpuflag(fma4) || cpuflag(fma3)
+    fmaddp%4                      m2, m1, [filter2q+min_filter_count_x4q*1], m2
+    fmaddp%4                      m0, m1, [filter1q+min_filter_count_x4q*1], m0
+%else
+    mulp%4                        m3, m1, [filter2q+min_filter_count_x4q*1]
+    mulp%4                        m1, m1, [filter1q+min_filter_count_x4q*1]
+    addp%4                        m2, m2, m3
+    addp%4                        m0, m0, m1
+%endif ; cpuflag
+%endif
+    add         min_filter_count_x4q, mmsize
+    js .inner_loop
+
+%ifidn %1, int16
+%if mmsize == 16
+%if cpuflag(xop)
+    vphadddq                      m2, m2
+    vphadddq                      m0, m0
+%endif
+    pshufd                        m3, m2, q0032
+    pshufd                        m1, m0, q0032
+    paddd                         m2, m3
+    paddd                         m0, m1
+%endif
+%if notcpuflag(xop)
+    PSHUFLW                       m3, m2, q0032
+    PSHUFLW                       m1, m0, q0032
+    paddd                         m2, m3
+    paddd                         m0, m1
+%endif
+    psubd                         m2, m0
+    ; This is probably a really bad idea on atom and other machines with a
+    ; long transfer latency between GPRs and XMMs (atom). However, it does
+    ; make the clip a lot simpler...
+    movd                         eax, m2
+    add                       indexd, dst_incr_divd
+    imul                              fracd
+    idiv                              src_incrd
+    movd                          m1, eax
+    add                        fracd, dst_incr_modd
+    paddd                         m0, m1
+    psrad                         m0, 15
+    packssdw                      m0, m0
+    movd                      [dstq], m0
+
+    ; note that for imul/idiv, I need to move filter to edx/eax for each:
+    ; - 32bit: eax=r0[filter1], edx=r2[filter2]
+    ; - win64: eax=r6[filter1], edx=r1[todo]
+    ; - unix64: eax=r6[filter1], edx=r2[todo]
+%else ; float/double
+    ; val += (v2 - val) * (FELEML) frac / c->src_incr;
+%if mmsize == 32
+    vextractf128                 xm1, m0, 0x1
+    vextractf128                 xm3, m2, 0x1
+    addp%4                       xm0, xm1
+    addp%4                       xm2, xm3
+%endif
+    cvtsi2s%4                    xm1, fracd
+    subp%4                       xm2, xm0
+    mulp%4                       xm1, xm4
+    shufp%4                      xm1, xm1, q0000
+%if cpuflag(fma4) || cpuflag(fma3)
+    fmaddp%4                     xm0, xm2, xm1, xm0
+%else
+    mulp%4                       xm2, xm1
+    addp%4                       xm0, xm2
+%endif ; cpuflag
+
+    ; horizontal sum & store
+    movhlps                      xm1, xm0
+%ifidn %1, float
+    addps                        xm0, xm1
+    shufps                       xm1, xm0, xm0, q0001
+%endif
+    add                        fracd, dst_incr_modd
+    addp%4                       xm0, xm1
+    add                       indexd, dst_incr_divd
+    movs%4                    [dstq], xm0
+%endif
+    cmp                        fracd, src_incrd
+    jl .skip
+    sub                        fracd, src_incrd
+    inc                       indexd
+
+%if UNIX64
+    DEFINE_ARGS filter_alloc, dst, filter2, phase_count, index, frac, index_incr, \
+                dst_incr_mod, min_filter_count_x4, min_filter_len_x4, \
+                dst_incr_div, src_incr, src, dst_end, filter_bank
+%elif WIN64
+    DEFINE_ARGS phase_count, filter2, src, filter_alloc, index, frac, index_incr, \
+                dst_incr_mod, min_filter_count_x4, min_filter_len_x4, \
+                dst_incr_div, src_incr, dst, dst_end, filter_bank
+%else ; x86-32
+    DEFINE_ARGS filter1, phase_count, index_incr, frac, index, dst, src
+%endif
+
+.skip:
+%if ARCH_X86_32
+    mov                 phase_countd, phase_count_stackd
+%endif
+    add                         dstq, %2
+    cmp                       indexd, phase_countd
+    jb .index_skip
+.index_while:
+    sub                       indexd, phase_countd
+    lea                         srcq, [srcq+%2]
+    cmp                       indexd, phase_countd
+    jnb .index_while
+.index_skip:
+    cmp                         dstq, dst_endq
+    jne .loop
+
+%if UNIX64
+    DEFINE_ARGS ctx, dst, filter2, phase_count, index, frac, index_incr, \
+                dst_incr_mod, min_filter_count_x4, min_filter_len_x4, \
+                dst_incr_div, src_incr, src, dst_end, filter_bank
+%elif WIN64
+    DEFINE_ARGS ctx, filter2, src, phase_count, index, frac, index_incr, \
+                dst_incr_mod, min_filter_count_x4, min_filter_len_x4, \
+                dst_incr_div, src_incr, dst, dst_end, filter_bank
+%else ; x86-32
+    DEFINE_ARGS filter1, ctx, update_context, frac, index, dst, src
+%endif
+
+    cmp  dword update_context_stackd, 0
+    jz .skip_store
+    ; strictly speaking, the function should always return the consumed
+    ; number of bytes; however, we only use the value if update_context
+    ; is true, so let's just leave it uninitialized otherwise
+    mov                         ctxq, ctx_stackq
+    movifnidn                    rax, srcq
+    mov [ctxq+ResampleContext.frac ], fracd
+    sub                          rax, src_stackq
+    mov [ctxq+ResampleContext.index], indexd
+    shr                          rax, %3
+
+.skip_store:
+%if ARCH_X86_32
+    ADD                          rsp, 0x28
+%endif
+    RET
+%endmacro
+
+INIT_XMM sse
+RESAMPLE_FNS float, 4, 2, s, pf_1
+
+%if HAVE_AVX_EXTERNAL
+INIT_YMM avx
+RESAMPLE_FNS float, 4, 2, s, pf_1
+%endif
+%if HAVE_FMA3_EXTERNAL
+INIT_YMM fma3
+RESAMPLE_FNS float, 4, 2, s, pf_1
+%endif
+%if HAVE_FMA4_EXTERNAL
+INIT_XMM fma4
+RESAMPLE_FNS float, 4, 2, s, pf_1
+%endif
+
+%if ARCH_X86_32
+INIT_MMX mmxext
+RESAMPLE_FNS int16, 2, 1
+%endif
+
+INIT_XMM sse2
+RESAMPLE_FNS int16, 2, 1
+%if HAVE_XOP_EXTERNAL
+INIT_XMM xop
+RESAMPLE_FNS int16, 2, 1
+%endif
+
+INIT_XMM sse2
+RESAMPLE_FNS double, 8, 3, d, pdbl_1
+
+%if HAVE_AVX_EXTERNAL
+INIT_YMM avx
+RESAMPLE_FNS double, 8, 3, d, pdbl_1
+%endif
+%if HAVE_FMA3_EXTERNAL
+INIT_YMM fma3
+RESAMPLE_FNS double, 8, 3, d, pdbl_1
+%endif
diff --git a/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/resample_init.c b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/resample_init.c
new file mode 100644
index 000000000..c6b2a3606
--- /dev/null
+++ b/trunk/3rdparty/ffmpeg-4.2-fit/libswresample/x86/resample_init.c
@@ -0,0 +1,100 @@
+/*
+ * audio resampling
+ * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * audio resampling
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "libavutil/x86/cpu.h"
+#include "libswresample/resample.h"
+
+#define RESAMPLE_FUNCS(type, opt) \
+int ff_resample_common_##type##_##opt(ResampleContext *c, void *dst, \
+                                      const void *src, int sz, int upd); \
+int ff_resample_linear_##type##_##opt(ResampleContext *c, void *dst, \
+                                      const void *src, int sz, int upd)
+
+RESAMPLE_FUNCS(int16,  mmxext);
+RESAMPLE_FUNCS(int16,  sse2);
+RESAMPLE_FUNCS(int16,  xop);
+RESAMPLE_FUNCS(float,  sse);
+RESAMPLE_FUNCS(float,  avx);
+RESAMPLE_FUNCS(float,  fma3);
+RESAMPLE_FUNCS(float,  fma4);
+RESAMPLE_FUNCS(double, sse2);
+RESAMPLE_FUNCS(double, avx);
+RESAMPLE_FUNCS(double, fma3);
+
+av_cold void swri_resample_dsp_x86_init(ResampleContext *c)
+{
+    int av_unused mm_flags = av_get_cpu_flags();
+
+    switch(c->format){
+    case AV_SAMPLE_FMT_S16P:
+        if (ARCH_X86_32 && EXTERNAL_MMXEXT(mm_flags)) {
+            c->dsp.resample_linear = ff_resample_linear_int16_mmxext;
+            c->dsp.resample_common = ff_resample_common_int16_mmxext;
+        }
+        if (EXTERNAL_SSE2(mm_flags)) {
+            c->dsp.resample_linear = ff_resample_linear_int16_sse2;
+            c->dsp.resample_common = ff_resample_common_int16_sse2;
+        }
+        if (EXTERNAL_XOP(mm_flags)) {
+            c->dsp.resample_linear = ff_resample_linear_int16_xop;
+            c->dsp.resample_common = ff_resample_common_int16_xop;
+        }
+        break;
+    case AV_SAMPLE_FMT_FLTP:
+        if (EXTERNAL_SSE(mm_flags)) {
+            c->dsp.resample_linear = ff_resample_linear_float_sse;
+            c->dsp.resample_common = ff_resample_common_float_sse;
+        }
+        if (EXTERNAL_AVX_FAST(mm_flags)) {
+            c->dsp.resample_linear = ff_resample_linear_float_avx;
+            c->dsp.resample_common = ff_resample_common_float_avx;
+        }
+        if (EXTERNAL_FMA3_FAST(mm_flags)) {
+            c->dsp.resample_linear = ff_resample_linear_float_fma3;
+            c->dsp.resample_common = ff_resample_common_float_fma3;
+        }
+        if (EXTERNAL_FMA4(mm_flags)) {
+            c->dsp.resample_linear = ff_resample_linear_float_fma4;
+            c->dsp.resample_common = ff_resample_common_float_fma4;
+        }
+        break;
+    case AV_SAMPLE_FMT_DBLP:
+        if (EXTERNAL_SSE2(mm_flags)) {
+            c->dsp.resample_linear = ff_resample_linear_double_sse2;
+            c->dsp.resample_common = ff_resample_common_double_sse2;
+        }
+        if (EXTERNAL_AVX_FAST(mm_flags)) {
+            c->dsp.resample_linear = ff_resample_linear_double_avx;
+            c->dsp.resample_common = ff_resample_common_double_avx;
+        }
+        if (EXTERNAL_FMA3_FAST(mm_flags)) {
+            c->dsp.resample_linear = ff_resample_linear_double_fma3;
+            c->dsp.resample_common = ff_resample_common_double_fma3;
+        }
+        break;
+    }
+}
diff --git a/trunk/3rdparty/opus-1.3.1.tar.gz b/trunk/3rdparty/opus-1.3.1.tar.gz
new file mode 100644
index 000000000..1119371fc
Binary files /dev/null and b/trunk/3rdparty/opus-1.3.1.tar.gz differ
diff --git a/trunk/auto/auto_headers.sh b/trunk/auto/auto_headers.sh
index b4c04545c..71e9d4818 100755
--- a/trunk/auto/auto_headers.sh
+++ b/trunk/auto/auto_headers.sh
@@ -73,6 +73,12 @@ else
     srs_undefine_macro "SRS_AUTO_SRT" $SRS_AUTO_HEADERS_H
 fi
 
+if [ $SRS_RTC = YES ]; then
+    srs_define_macro "SRS_AUTO_RTC" $SRS_AUTO_HEADERS_H
+else
+    srs_undefine_macro "SRS_AUTO_RTC" $SRS_AUTO_HEADERS_H
+fi
+
 if [ $SRS_MEM_WATCH = YES ]; then
     srs_define_macro "SRS_AUTO_MEM_WATCH" $SRS_AUTO_HEADERS_H
 else
diff --git a/trunk/auto/depends.sh b/trunk/auto/depends.sh
index b2c69bbdb..81e6f1f4b 100755
--- a/trunk/auto/depends.sh
+++ b/trunk/auto/depends.sh
@@ -84,6 +84,13 @@ function Ubuntu_prepare()
         echo "The unzip is installed."
     fi
 
+    nasm -v >/dev/null 2>&1; ret=$?; if [[ 0 -ne $ret ]]; then
+        echo "Installing nasm."
+        require_sudoer "sudo apt-get install -y --force-yes nasm"
+        sudo apt-get install -y --force-yes nasm; ret=$?; if [[ 0 -ne $ret ]]; then return $ret; fi
+        echo "The nasm is installed."
+    fi
+
     if [[ $SRS_VALGRIND == YES ]]; then
         valgrind --help >/dev/null 2>&1; ret=$?; if [[ 0 -ne $ret ]]; then
             echo "Installing valgrind."
@@ -157,6 +164,13 @@ function Centos_prepare()
         echo "The unzip is installed."
     fi
 
+    nasm -v >/dev/null 2>&1; ret=$?; if [[ 0 -ne $ret ]]; then
+        echo "Installing nasm."
+        require_sudoer "sudo yum install -y nasm"
+        sudo yum install -y nasm; ret=$?; if [[ 0 -ne $ret ]]; then return $ret; fi
+        echo "The nasm is installed."
+    fi
+
     if [[ $SRS_VALGRIND == YES ]]; then
         valgrind --help >/dev/null 2>&1; ret=$?; if [[ 0 -ne $ret ]]; then
             echo "Installing valgrind."
@@ -373,7 +387,7 @@ if [[ $SRS_SSL == YES && $SRS_USE_SYS_SSL != YES ]]; then
             rm -rf ${SRS_OBJS}/openssl-1.1.0e && cd ${SRS_OBJS} &&
             unzip -q ../3rdparty/openssl-1.1.0e.zip && cd openssl-1.1.0e &&
             ${OPENSSL_CONFIG} --prefix=`pwd`/_release $OPENSSL_OPTIONS &&
-            make CC=${SRS_TOOL_CC} AR="${SRS_TOOL_AR} -rs" LD=${SRS_TOOL_LD} RANDLIB=${SRS_TOOL_RANDLIB} && make install_sw &&
+            make CC=${SRS_TOOL_CC} AR="${SRS_TOOL_AR} -rs" LD=${SRS_TOOL_LD} RANDLIB=${SRS_TOOL_RANDLIB} ${SRS_JOBS} && make install_sw &&
             cd .. && rm -rf openssl && ln -sf openssl-1.1.0e/_release openssl
         )
     fi
@@ -382,6 +396,56 @@ if [[ $SRS_SSL == YES && $SRS_USE_SYS_SSL != YES ]]; then
     if [ ! -f ${SRS_OBJS}/openssl/lib/libssl.a ]; then echo "Build openssl-1.1.0e failed."; exit -1; fi
 fi
 
+#####################################################################################
+# libopus, for WebRTC to transcode AAC with Opus.
+#####################################################################################
+if [[ $SRS_EXPORT_LIBRTMP_PROJECT == NO && $SRS_RTC == YES ]]; then
+    if [[ -f ${SRS_OBJS}/opus/lib/libopus.a ]]; then
+        echo "The opus-1.3.1 is ok.";
+    else
+        echo "Building opus-1.3.1.";
+        (
+            rm -rf ${SRS_OBJS}/opus-1.3.1 && cd ${SRS_OBJS} &&
+            tar xf ../3rdparty/opus-1.3.1.tar.gz && cd opus-1.3.1 &&
+            ./configure --prefix=`pwd`/_release --enable-static --disable-shared && make ${SRS_JOBS} && make install
+            cd .. && rm -rf opus && ln -sf opus-1.3.1/_release opus
+        )
+    fi
+    # check status
+    ret=$?; if [[ $ret -ne 0 ]]; then echo "Build opus-1.3.1 failed, ret=$ret"; exit $ret; fi
+    if [ ! -f ${SRS_OBJS}/opus/lib/libopus.a ]; then echo "Build opus-1.3.1 failed."; exit -1; fi
+fi
+
+#####################################################################################
+# ffmpeg-fix, for WebRTC to transcode AAC with Opus.
+#####################################################################################
+if [[ $SRS_EXPORT_LIBRTMP_PROJECT == NO && $SRS_RTC == YES ]]; then
+    if [[ -f ${SRS_OBJS}/ffmpeg/lib/libavcodec.a ]]; then
+        echo "The ffmpeg-4.2-fit is ok.";
+    else
+        echo "Building ffmpeg-4.2-fit.";
+        (
+            rm -rf ${SRS_OBJS}/ffmpeg-4.2-fit && cd ${SRS_OBJS} && ABS_OBJS=`pwd` &&
+            ln -sf ../3rdparty/ffmpeg-4.2-fit && cd ffmpeg-4.2-fit &&
+            PKG_CONFIG_PATH=$ABS_OBJS/opus/lib/pkgconfig ./configure \
+              --prefix=`pwd`/_release \
+              --pkg-config-flags="--static" --extra-libs=-lpthread --extra-libs=-lm \
+              --disable-programs --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages \
+              --disable-avdevice --disable-avformat --disable-swscale --disable-postproc --disable-avfilter --disable-network \
+              --disable-dct --disable-dwt --disable-error-resilience --disable-lsp --disable-lzo --disable-faan --disable-pixelutils \
+              --disable-hwaccels --disable-devices --disable-audiotoolbox --disable-videotoolbox --disable-appkit --disable-coreimage \
+              --disable-avfoundation --disable-securetransport --disable-iconv --disable-lzma --disable-sdl2 --disable-everything \
+              --enable-decoder=aac --enable-decoder=aac_fixed --enable-decoder=aac_latm --enable-decoder=libopus --enable-encoder=aac \
+              --enable-encoder=opus --enable-encoder=libopus --enable-libopus &&
+            make ${SRS_JOBS} && make install
+            cd .. && rm -rf ffmpeg && ln -sf ffmpeg-4.2-fit/_release ffmpeg
+        )
+    fi
+    # check status
+    ret=$?; if [[ $ret -ne 0 ]]; then echo "Build ffmpeg-4.2-fit failed, ret=$ret"; exit $ret; fi
+    if [ ! -f ${SRS_OBJS}/ffmpeg/lib/libavcodec.a ]; then echo "Build ffmpeg-4.2-fit failed."; exit -1; fi
+fi
+
 #####################################################################################
 # live transcoding, ffmpeg-4.1, x264-core157, lame-3.99.5, libaacplus-2.0.2.
 #####################################################################################
@@ -393,17 +457,9 @@ if [ $SRS_FFMPEG_TOOL = YES ]; then
     if [[ -f ${SRS_OBJS}/ffmpeg/bin/ffmpeg ]]; then
         echo "ffmpeg-4.1 is ok.";
     else
-        echo "build ffmpeg-4.1"; 
-        (
-            cd ${SRS_OBJS} && pwd_dir=`pwd` && 
-            rm -rf ffmepg.src && mkdir -p ffmpeg.src && cd ffmpeg.src &&
-            rm -f build_ffmpeg.sh && ln -sf ../../auto/build_ffmpeg.sh && . build_ffmpeg.sh &&
-            cd ${pwd_dir} && rm -rf ffmpeg && ln -sf ffmpeg.src/_release ffmpeg
-        )
+        echo "no ffmpeg-4.1 found, please run in docker ossrs/srs:dev";
+        exit -1;
     fi
-    # check status
-    ret=$?; if [[ $ret -ne 0 ]]; then echo "build ffmpeg-4.1 failed, ret=$ret"; exit $ret; fi
-    if [ ! -f ${SRS_OBJS}/ffmpeg/bin/ffmpeg ]; then echo "build ffmpeg-4.1 failed."; exit -1; fi
 fi
 
 #####################################################################################
@@ -417,7 +473,7 @@ if [[ $SRS_SRT == YES ]]; then
     if [[ -f ${SRS_OBJS}/srt/lib/libsrt.a ]]; then
         echo "libsrt-1.4.1 is ok.";
     else
-        echo "no libsrt, please use srs-docker or build from source https://github.com/ossrs/srs/issues/1147#issuecomment-577469119";
+        echo "no libsrt, please run in docker ossrs/srs:srt or build from source https://github.com/ossrs/srs/issues/1147#issuecomment-577469119";
         exit -1;
     fi
 fi
diff --git a/trunk/auto/options.sh b/trunk/auto/options.sh
index ad89f882d..3f142b4a8 100755
--- a/trunk/auto/options.sh
+++ b/trunk/auto/options.sh
@@ -17,6 +17,7 @@ help=no
 # feature options
 SRS_HDS=NO
 SRS_SRT=NO
+SRS_RTC=YES
 SRS_NGINX=NO
 SRS_FFMPEG_TOOL=NO
 SRS_LIBRTMP=NO
@@ -130,7 +131,8 @@ Features:
   --with-librtmp            Enable srs-librtmp, library for client.
   --with-research           Build the research tools.
   --with-utest              Build the utest for SRS.
-  --with-srt                Build the srt for SRS.
+  --with-srt                Build the SRT support for SRS.
+  --with-rtc                Build the WebRTC support for SRS.
 
   --without-ssl             Disable rtmp complex handshake.
   --without-hds             Disable hds, the adobe http dynamic streaming.
@@ -139,7 +141,8 @@ Features:
   --without-librtmp         Disable srs-librtmp, library for client.
   --without-research        Do not build the research tools.
   --without-utest           Do not build the utest for SRS.
-  --without-srt             Do not build the srt for SRS.
+  --without-srt             Do not build the SRT support for SRS.
+  --without-rtc             Do not build the WebRTC support for SRS.
 
   --prefix=<path>           The absolute installation path for srs. Default: $SRS_PREFIX
   --static                  Whether add '-static' to link options.
@@ -225,6 +228,7 @@ function parse_user_option() {
         --with-research)                SRS_RESEARCH=YES            ;;
         --with-utest)                   SRS_UTEST=YES               ;;
         --with-srt)                     SRS_SRT=YES                 ;;
+        --with-rtc)                     SRS_RTC=YES                 ;;
         --with-gperf)                   SRS_GPERF=YES               ;;
         --with-gmc)                     SRS_GPERF_MC=YES            ;;
         --with-gmd)                     SRS_GPERF_MD=YES            ;;
@@ -240,7 +244,8 @@ function parse_user_option() {
         --without-librtmp)              SRS_LIBRTMP=NO              ;;
         --without-research)             SRS_RESEARCH=NO             ;;
         --without-utest)                SRS_UTEST=NO                ;;
-        --without-srt)                  SRS_SRT=NO                 ;;
+        --without-srt)                  SRS_SRT=NO                  ;;
+        --without-rtc)                  SRS_RTC=NO                  ;;
         --without-gperf)                SRS_GPERF=NO                ;;
         --without-gmc)                  SRS_GPERF_MC=NO             ;;
         --without-gmd)                  SRS_GPERF_MD=NO             ;;
@@ -539,6 +544,7 @@ function regenerate_options() {
     if [ $SRS_RESEARCH = YES ]; then SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --with-research"; else SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --without-research"; fi
     if [ $SRS_UTEST = YES ]; then SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --with-utest"; else SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --without-utest"; fi
     if [ $SRS_SRT = YES ]; then SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --with-srt"; else SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --without-srt"; fi
+    if [ $SRS_RTC = YES ]; then SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --with-rtc"; else SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --without-rtc"; fi
     if [ $SRS_GPERF = YES ]; then SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --with-gperf"; else SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --without-gperf"; fi
     if [ $SRS_GPERF_MC = YES ]; then SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --with-gmc"; else SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --without-gmc"; fi
     if [ $SRS_GPERF_MD = YES ]; then SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --with-gmd"; else SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --without-gmd"; fi
diff --git a/trunk/configure b/trunk/configure
index 4e710d183..30757bdc3 100755
--- a/trunk/configure
+++ b/trunk/configure
@@ -149,9 +149,14 @@ END
 LibSTRoot="${SRS_OBJS_DIR}/st"; LibSTfile="${LibSTRoot}/libst.a"
 if [[ $SRS_SHARED_ST == YES ]]; then LibSTfile="-lst"; fi
 # srtp
-LibSrtpRoot="${SRS_OBJS_DIR}/srtp2/include"; LibSrtpFile="${SRS_OBJS_DIR}/srtp2/lib/libsrtp2.a"
-# ffmpeg
-LibFfmpegRoot="${SRS_OBJS_DIR}/ffmpeg/include"; LibFfmpegFile="${SRS_OBJS_DIR}/ffmpeg/lib/libavcodec.a ${SRS_OBJS_DIR}/ffmpeg/lib/libswresample.a ${SRS_OBJS_DIR}/ffmpeg/lib/libavutil.a ${SRS_OBJS_DIR}/ffmpeg/lib/libopus.a -lpthread"
+if [[ $SRS_RTC == YES ]]; then
+  LibSrtpRoot="${SRS_OBJS_DIR}/srtp2/include"; LibSrtpFile="${SRS_OBJS_DIR}/srtp2/lib/libsrtp2.a"
+fi
+# FFMPEG for WebRTC transcoding, such as aac to opus.
+if [[ $SRS_RTC == YES ]]; then
+  LibFfmpegRoot="${SRS_OBJS_DIR}/ffmpeg/include"; LibFfmpegFile="${SRS_OBJS_DIR}/ffmpeg/lib/libavcodec.a ${SRS_OBJS_DIR}/ffmpeg/lib/libswresample.a ${SRS_OBJS_DIR}/ffmpeg/lib/libavutil.a"
+  LibFfmpegRoot="${LibFfmpegRoot} ${SRS_OBJS_DIR}/opus/include"; LibFfmpegFile="${LibFfmpegFile} ${SRS_OBJS_DIR}/opus/lib/libopus.a"
+fi
 # openssl-1.1.0e, for the RTMP complex handshake.
 LibSSLRoot="";LibSSLfile=""
 if [[ $SRS_SSL == YES && $SRS_USE_SYS_SSL == NO ]]; then
@@ -172,8 +177,8 @@ if [[ $SRS_SRT == YES ]]; then
 fi
 # the link options, always use static link
 SrsLinkOptions="-ldl";
-if [[ $SRS_SRT == YES ]]; then
-    SrsLinkOptions="${SrsLinkOptions} -pthread";
+if [[ $SRS_SRT == YES || $SRS_RTC == YES ]]; then
+    SrsLinkOptions="${SrsLinkOptions} -lpthread";
 fi
 if [[ $SRS_SSL == YES && $SRS_USE_SYS_SSL == YES ]]; then
     SrsLinkOptions="${SrsLinkOptions} -lssl -lcrypto";
@@ -205,9 +210,12 @@ MODULE_ID="KERNEL"
 MODULE_DEPENDS=("CORE") 
 ModuleLibIncs=(${SRS_OBJS_DIR} ${LibSSLRoot})
 MODULE_FILES=("srs_kernel_error" "srs_kernel_log" "srs_kernel_buffer"
-        "srs_kernel_utility" "srs_kernel_flv" "srs_kernel_rtp" "srs_kernel_codec" "srs_kernel_io"
+        "srs_kernel_utility" "srs_kernel_flv" "srs_kernel_codec" "srs_kernel_io"
         "srs_kernel_consts" "srs_kernel_aac" "srs_kernel_mp3" "srs_kernel_ts"
         "srs_kernel_stream" "srs_kernel_balance" "srs_kernel_mp4" "srs_kernel_file")
+if [[ $SRS_RTC == YES ]]; then
+    MODULE_FILES+=("srs_kernel_rtp")
+fi
 KERNEL_INCS="src/kernel"; MODULE_DIR=${KERNEL_INCS} . auto/modules.sh
 KERNEL_OBJS="${MODULE_OBJS[@]}"
 #
@@ -218,7 +226,10 @@ ModuleLibIncs=(${SRS_OBJS_DIR} ${LibSSLRoot})
 MODULE_FILES=("srs_protocol_amf0" "srs_protocol_io" "srs_rtmp_stack"
         "srs_rtmp_handshake" "srs_protocol_utility" "srs_rtmp_msg_array" "srs_protocol_stream"
         "srs_raw_avc" "srs_rtsp_stack" "srs_http_stack" "srs_protocol_kbps" "srs_protocol_json"
-        "srs_stun_stack" "srs_protocol_format")
+        "srs_protocol_format")
+if [[ $SRS_RTC == YES ]]; then
+    MODULE_FILES+=("srs_stun_stack")
+fi
 PROTOCOL_INCS="src/protocol"; MODULE_DIR=${PROTOCOL_INCS} . auto/modules.sh
 PROTOCOL_OBJS="${MODULE_OBJS[@]}"
 #
@@ -237,7 +248,10 @@ fi
 if [ $SRS_EXPORT_LIBRTMP_PROJECT = NO ]; then
     MODULE_ID="SERVICE"
     MODULE_DEPENDS=("CORE" "KERNEL" "PROTOCOL")
-    ModuleLibIncs=(${LibSTRoot} ${LibSrtpRoot} ${LibFfmpegRoot} ${SRS_OBJS_DIR} ${LibSSLRoot})
+    ModuleLibIncs=(${LibSTRoot} ${SRS_OBJS_DIR} ${LibSSLRoot})
+    if [[ $SRS_RTC == YES ]]; then
+        ModuleLibIncs+=("${LibFfmpegRoot[*]}" ${LibSrtpRoot})
+    fi
     MODULE_FILES=("srs_service_log" "srs_service_st" "srs_service_http_client"
         "srs_service_http_conn" "srs_service_rtmp_conn" "srs_service_utility"
         "srs_service_conn")
@@ -250,7 +264,10 @@ fi
 if [ $SRS_EXPORT_LIBRTMP_PROJECT = NO ]; then
     MODULE_ID="APP" 
     MODULE_DEPENDS=("CORE" "KERNEL" "PROTOCOL" "SERVICE")
-    ModuleLibIncs=(${LibSTRoot} ${LibSrtpRoot} ${LibFfmpegRoot} ${SRS_OBJS_DIR} ${LibSSLRoot})
+    ModuleLibIncs=(${LibSTRoot} ${SRS_OBJS_DIR} ${LibSSLRoot})
+    if [[ $SRS_RTC == YES ]]; then
+        ModuleLibIncs+=("${LibFfmpegRoot[*]}" ${LibSrtpRoot})
+    fi
     MODULE_FILES=("srs_app_server" "srs_app_conn" "srs_app_rtmp_conn" "srs_app_source" 
             "srs_app_refer" "srs_app_hls" "srs_app_forward" "srs_app_encoder" "srs_app_http_stream"
             "srs_app_thread" "srs_app_bandwidth" "srs_app_st" "srs_app_log" "srs_app_config" 
@@ -258,10 +275,13 @@ if [ $SRS_EXPORT_LIBRTMP_PROJECT = NO ]; then
             "srs_app_ingest" "srs_app_ffmpeg" "srs_app_utility" "srs_app_edge"
             "srs_app_heartbeat" "srs_app_empty" "srs_app_http_client" "srs_app_http_static"
             "srs_app_recv_thread" "srs_app_security" "srs_app_statistic" "srs_app_hds"
-            "srs_app_mpegts_udp" "srs_app_rtc" "srs_app_rtc_conn" "srs_app_dtls" "srs_app_rtsp" "srs_app_listener" "srs_app_async_call"
+            "srs_app_mpegts_udp" "srs_app_rtsp" "srs_app_listener" "srs_app_async_call"
             "srs_app_caster_flv" "srs_app_process" "srs_app_ng_exec"
             "srs_app_hourglass" "srs_app_dash" "srs_app_fragment" "srs_app_dvr"
-            "srs_app_coworkers" "srs_app_hybrid" "srs_app_audio_recode")
+            "srs_app_coworkers" "srs_app_hybrid")
+    if [[ $SRS_RTC == YES ]]; then
+        MODULE_FILES+=("srs_app_rtc" "srs_app_rtc_conn" "srs_app_dtls" "srs_app_audio_recode")
+    fi
     DEFINES=""
     # add each modules for app
     for SRS_MODULE in ${SRS_MODULES[*]}; do
@@ -288,7 +308,10 @@ if [ $SRS_EXPORT_LIBRTMP_PROJECT = NO ]; then
     if [[ $SRS_SRT == YES ]]; then
         MODULE_DEPENDS+=("SRT")
     fi
-    ModuleLibIncs=(${LibSTRoot} ${LibSrtpRoot} ${LibFfmpegRoot} ${SRS_OBJS_DIR} ${LibGperfRoot} ${LibSSLRoot})
+    ModuleLibIncs=(${LibSTRoot} ${SRS_OBJS_DIR} ${LibGperfRoot} ${LibSSLRoot})
+    if [[ $SRS_RTC == YES ]]; then
+        ModuleLibIncs+=("${LibFfmpegRoot[*]}" ${LibSrtpRoot})
+    fi
     if [[ $SRS_SRT == YES ]]; then
         ModuleLibIncs+=("${LibSRTRoot[*]}")
     fi
@@ -301,7 +324,10 @@ fi
 if [ $SRS_EXPORT_LIBRTMP_PROJECT = NO ]; then
     MODULE_ID="MAIN"
     MODULE_DEPENDS=("CORE" "KERNEL" "PROTOCOL" "SERVICE")
-    ModuleLibIncs=(${LibSTRoot} ${LibSrtpRoot} ${LibFfmpegRoot} ${SRS_OBJS_DIR} ${LibGperfRoot} ${LibSSLRoot})
+    ModuleLibIncs=(${LibSTRoot} ${SRS_OBJS_DIR} ${LibGperfRoot} ${LibSSLRoot})
+    if [[ $SRS_RTC == YES ]]; then
+        ModuleLibIncs+=("${LibFfmpegRoot[*]}" ${LibSrtpRoot})
+    fi
     MODULE_FILES=()
     DEFINES=""
     # add each modules for main
@@ -328,13 +354,19 @@ if [ $SRS_EXPORT_LIBRTMP_PROJECT = NO ]; then
     done
     #
     # all depends libraries
-    ModuleLibFiles=(${LibSTfile} ${LibSrtpFile} ${LibFfmpegFile} ${LibSSLfile} ${LibGperfFile})
+    ModuleLibFiles=(${LibSTfile} ${LibSSLfile} ${LibGperfFile})
+    if [[ $SRS_RTC == YES ]]; then
+        ModuleLibFiles+=("${LibFfmpegFile[*]}" ${LibSrtpFile})
+    fi
     if [[ $SRS_SRT == YES ]]; then
         ModuleLibFiles+=("${LibSRTfile[*]}")
     fi
     # all depends objects
     MODULE_OBJS="${CORE_OBJS[@]} ${KERNEL_OBJS[@]} ${PROTOCOL_OBJS[@]} ${SERVICE_OBJS[@]} ${APP_OBJS[@]} ${SERVER_OBJS[@]}"
-    ModuleLibIncs=(${LibSTRoot} ${LibSrtpRoot} ${LibFfmpegRoot} ${SRS_OBJS_DIR} ${LibGperfRoot} ${LibSSLRoot})
+    ModuleLibIncs=(${LibSTRoot} ${SRS_OBJS_DIR} ${LibGperfRoot} ${LibSSLRoot})
+    if [[ $SRS_RTC == YES ]]; then
+        ModuleLibIncs+=("${LibFfmpegRoot[*]}" ${LibSrtpRoot})
+    fi
     if [[ $SRS_SRT == YES ]]; then
         MODULE_OBJS="${MODULE_OBJS} ${SRT_OBJS[@]}"
     fi
@@ -345,7 +377,10 @@ if [ $SRS_EXPORT_LIBRTMP_PROJECT = NO ]; then
     #
     # For modules, without the app module.
     MODULE_OBJS="${CORE_OBJS[@]} ${KERNEL_OBJS[@]} ${PROTOCOL_OBJS[@]} ${SERVICE_OBJS[@]} ${MAIN_OBJS[@]}"
-    ModuleLibFiles=(${LibSTfile} ${LibSrtpFile} ${LibFfmpegFile} ${LibSSLfile} ${LibGperfFile})
+    ModuleLibFiles=(${LibSTfile} ${LibSSLfile} ${LibGperfFile})
+    if [[ $SRS_RTC == YES ]]; then
+        ModuleLibFiles+=("${LibFfmpegFile[*]}" ${LibSrtpFile})
+    fi
     #
     for SRS_MODULE in ${SRS_MODULES[*]}; do
         . $SRS_MODULE/config
@@ -365,11 +400,17 @@ if [ $SRS_UTEST = YES ]; then
     MODULE_FILES=("srs_utest" "srs_utest_amf0" "srs_utest_protocol" "srs_utest_kernel" "srs_utest_core"
         "srs_utest_config" "srs_utest_rtmp" "srs_utest_http" "srs_utest_avc" "srs_utest_reload"
         "srs_utest_mp4" "srs_utest_service" "srs_utest_app")
-    ModuleLibIncs=(${SRS_OBJS_DIR} ${LibSTRoot} ${LibSrtpRoot} ${LibFfmpegRoot} ${LibSSLRoot})
+    ModuleLibIncs=(${SRS_OBJS_DIR} ${LibSTRoot} ${LibSSLRoot})
+    if [[ $SRS_RTC == YES ]]; then
+        ModuleLibIncs+=("${LibFfmpegRoot[*]}" ${LibSrtpRoot})
+    fi
     if [[ $SRS_SRT == YES ]]; then
         ModuleLibIncs+=("${LibSRTRoot[*]}")
     fi
-    ModuleLibFiles=(${LibSTfile} ${LibSrtpFile} ${LibFfmpegFile} ${LibSSLfile})
+    ModuleLibFiles=(${LibSTfile} ${LibSSLfile})
+    if [[ $SRS_RTC == YES ]]; then
+        ModuleLibFiles+=("${LibFfmpegFile[*]}" ${LibSrtpFile})
+    fi
     if [[ $SRS_SRT == YES ]]; then
         ModuleLibFiles+=("${LibSRTfile[*]}")
     fi
diff --git a/trunk/src/app/srs_app_http_api.cpp b/trunk/src/app/srs_app_http_api.cpp
index 2ea98230a..ab755df2f 100644
--- a/trunk/src/app/srs_app_http_api.cpp
+++ b/trunk/src/app/srs_app_http_api.cpp
@@ -46,7 +46,9 @@ using namespace std;
 #include <srs_protocol_amf0.hpp>
 #include <srs_protocol_utility.hpp>
 #include <srs_app_coworkers.hpp>
+#ifdef SRS_AUTO_RTC
 #include <srs_app_rtc_conn.hpp>
+#endif
 
 srs_error_t srs_api_response_jsonp(ISrsHttpResponseWriter* w, string callback, string data)
 {
@@ -781,6 +783,7 @@ srs_error_t SrsGoApiStreams::serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessa
     return srs_api_response(w, r, obj->dumps());
 }
 
+#ifdef SRS_AUTO_RTC
 SrsGoApiSdp::SrsGoApiSdp(SrsRtcServer* rtc_svr)
 {
     rtc_server = rtc_svr;
@@ -907,6 +910,7 @@ srs_error_t SrsGoApiSdp::do_serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessag
 
     return err;
 }
+#endif
 
 SrsGoApiClients::SrsGoApiClients()
 {
diff --git a/trunk/src/app/srs_app_http_api.hpp b/trunk/src/app/srs_app_http_api.hpp
index 7b55eaf52..4caee1de8 100644
--- a/trunk/src/app/srs_app_http_api.hpp
+++ b/trunk/src/app/srs_app_http_api.hpp
@@ -166,6 +166,7 @@ public:
     virtual srs_error_t serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r);
 };
 
+#ifdef SRS_AUTO_RTC
 class SrsGoApiSdp : public ISrsHttpHandler
 {
 private:
@@ -178,6 +179,7 @@ public:
 private:
     virtual srs_error_t do_serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r, SrsJsonObject* res);
 };
+#endif
 
 class SrsGoApiClients : public ISrsHttpHandler
 {
diff --git a/trunk/src/app/srs_app_source.cpp b/trunk/src/app/srs_app_source.cpp
index 3ba15a621..94d24e250 100755
--- a/trunk/src/app/srs_app_source.cpp
+++ b/trunk/src/app/srs_app_source.cpp
@@ -33,7 +33,6 @@ using namespace std;
 #include <srs_kernel_codec.hpp>
 #include <srs_kernel_rtp.hpp>
 #include <srs_app_hls.hpp>
-#include <srs_app_rtc.hpp>
 #include <srs_app_forward.hpp>
 #include <srs_app_config.hpp>
 #include <srs_app_encoder.hpp>
@@ -51,6 +50,9 @@ using namespace std;
 #include <srs_app_ng_exec.hpp>
 #include <srs_app_dash.hpp>
 #include <srs_protocol_format.hpp>
+#ifdef SRS_AUTO_RTC
+#include <srs_app_rtc.hpp>
+#endif
 
 #define CONST_MAX_JITTER_MS         250
 #define CONST_MAX_JITTER_MS_NEG         -250
@@ -816,6 +818,7 @@ SrsSharedPtrMessage* SrsMixQueue::pop()
     return msg;
 }
 
+#ifdef SRS_AUTO_RTC
 SrsRtpPacketQueue::SrsRtpPacketQueue()
 {
 }
@@ -864,6 +867,7 @@ SrsRtpSharedPacket* SrsRtpPacketQueue::find(const uint16_t& sequence)
 
     return pkt;
 }
+#endif
 
 SrsOriginHub::SrsOriginHub()
 {
@@ -875,7 +879,9 @@ SrsOriginHub::SrsOriginHub()
     dash = new SrsDash();
     dvr = new SrsDvr();
     encoder = new SrsEncoder();
+#ifdef SRS_AUTO_RTC
     rtc = new SrsRtc();
+#endif
 #ifdef SRS_AUTO_HDS
     hds = new SrsHds();
 #endif
@@ -919,10 +925,12 @@ srs_error_t SrsOriginHub::initialize(SrsSource* s, SrsRequest* r)
     if ((err = format->initialize()) != srs_success) {
         return srs_error_wrap(err, "format initialize");
     }
-    
+
+#ifdef SRS_AUTO_RTC
     if ((err = rtc->initialize(this, req)) != srs_success) {
         return srs_error_wrap(err, "rtc initialize");
     }
+#endif
     
     if ((err = hls->initialize(this, req)) != srs_success) {
         return srs_error_wrap(err, "hls initialize");
@@ -1022,11 +1030,13 @@ srs_error_t SrsOriginHub::on_audio(SrsSharedPtrMessage* shared_audio)
                   srs_flv_srates[c->sound_rate]);
     }
 
+#ifdef SRS_AUTO_RTC
     if ((err = rtc->on_audio(msg, format)) != srs_success) {
         srs_warn("rtc: ignore audio error %s", srs_error_desc(err).c_str());
         srs_error_reset(err);
         rtc->on_unpublish();
     }
+#endif
     
     if ((err = hls->on_audio(msg, format)) != srs_success) {
         // apply the error strategy for hls.
@@ -1121,6 +1131,7 @@ srs_error_t SrsOriginHub::on_video(SrsSharedPtrMessage* shared_video, bool is_se
         return err;
     }
 
+#ifdef SRS_AUTO_RTC
     // Parse RTMP message to RTP packets, in FU-A if too large.
     if ((err = rtc->on_video(msg, format)) != srs_success) {
         // TODO: We should support more strategies.
@@ -1132,6 +1143,7 @@ srs_error_t SrsOriginHub::on_video(SrsSharedPtrMessage* shared_video, bool is_se
     // TODO: FIXME: Refactor to move to rtp?
     // Save the RTP packets for find_rtp_packet() to rtx or restore it.
     source->rtp_queue->push(msg->rtp_packets);
+#endif
     
     if ((err = hls->on_video(msg, format)) != srs_success) {
         // TODO: We should support more strategies.
@@ -1200,10 +1212,12 @@ srs_error_t SrsOriginHub::on_publish()
     if ((err = encoder->on_publish(req)) != srs_success) {
         return srs_error_wrap(err, "encoder publish");
     }
-    
+
+#ifdef SRS_AUTO_RTC
     if ((err = rtc->on_publish()) != srs_success) {
         return srs_error_wrap(err, "rtc publish");
     }
+#endif
 
     if ((err = hls->on_publish()) != srs_success) {
         return srs_error_wrap(err, "hls publish");
@@ -1242,7 +1256,9 @@ void SrsOriginHub::on_unpublish()
     destroy_forwarders();
     
     encoder->on_unpublish();
+#ifdef SRS_AUTO_RTC
     rtc->on_unpublish();
+#endif
     hls->on_unpublish();
     dash->on_unpublish();
     dvr->on_unpublish();
@@ -1904,7 +1920,9 @@ SrsSource::SrsSource()
     jitter_algorithm = SrsRtmpJitterAlgorithmOFF;
     mix_correct = false;
     mix_queue = new SrsMixQueue();
+#ifdef SRS_AUTO_RTC
     rtp_queue = new SrsRtpPacketQueue();
+#endif
     
     _can_publish = true;
     _pre_source_id = _source_id = -1;
@@ -1934,7 +1952,9 @@ SrsSource::~SrsSource()
     srs_freep(hub);
     srs_freep(meta);
     srs_freep(mix_queue);
+#ifdef SRS_AUTO_RTC
     srs_freep(rtp_queue);
+#endif
     
     srs_freep(play_edge);
     srs_freep(publish_edge);
@@ -2692,7 +2712,9 @@ string SrsSource::get_curr_origin()
     return play_edge->get_curr_origin();
 }
 
+#ifdef SRS_AUTO_RTC
 SrsRtpSharedPacket* SrsSource::find_rtp_packet(const uint16_t& seq)
 {
     return rtp_queue->find(seq);
 }
+#endif
diff --git a/trunk/src/app/srs_app_source.hpp b/trunk/src/app/srs_app_source.hpp
index 01005d96b..ac04f5a05 100644
--- a/trunk/src/app/srs_app_source.hpp
+++ b/trunk/src/app/srs_app_source.hpp
@@ -325,6 +325,7 @@ public:
     virtual SrsSharedPtrMessage* pop();
 };
 
+#ifdef SRS_AUTO_RTC
 // To find the RTP packet for RTX or restore.
 class SrsRtpPacketQueue
 {
@@ -347,6 +348,7 @@ public:
     void insert(const uint16_t& sequence, SrsRtpSharedPacket* pkt);
     SrsRtpSharedPacket* find(const uint16_t& sequence);
 };
+#endif
 
 // The hub for origin is a collection of utilities for origin only,
 // For example, DVR, HLS, Forward and Transcode are only available for origin,
@@ -360,8 +362,10 @@ private:
 private:
     // The format, codec information.
     SrsRtmpFormat* format;
+#ifdef SRS_AUTO_RTC
     // rtc handler
     SrsRtc* rtc;
+#endif
     // hls handler.
     SrsHls* hls;
     // The DASH encoder.
@@ -534,8 +538,10 @@ private:
     bool mix_correct;
     // The mix queue to implements the mix correct algorithm.
     SrsMixQueue* mix_queue;
+#ifdef SRS_AUTO_RTC
     // rtp packet queue
     SrsRtpPacketQueue* rtp_queue;
+#endif
     // For play, whether enabled atc.
     // The atc(use absolute time and donot adjust time),
     // directly use msg time and donot adjust if atc is true,
@@ -625,8 +631,10 @@ public:
 public:
     virtual std::string get_curr_origin();
 public:
+#ifdef SRS_AUTO_RTC
     // Find rtp packet by sequence
     SrsRtpSharedPacket* find_rtp_packet(const uint16_t& seq);
+#endif
 };
 
 #endif
diff --git a/trunk/src/kernel/srs_kernel_flv.cpp b/trunk/src/kernel/srs_kernel_flv.cpp
index be4e808e2..f24dc2047 100644
--- a/trunk/src/kernel/srs_kernel_flv.cpp
+++ b/trunk/src/kernel/srs_kernel_flv.cpp
@@ -36,11 +36,13 @@ using namespace std;
 #include <srs_kernel_error.hpp>
 #include <srs_kernel_buffer.hpp>
 #include <srs_kernel_file.hpp>
-#include <srs_kernel_rtp.hpp>
 #include <srs_kernel_codec.hpp>
 #include <srs_kernel_utility.hpp>
 #include <srs_core_mem_watch.hpp>
 #include <srs_core_autofree.hpp>
+#ifdef SRS_AUTO_RTC
+#include <srs_kernel_rtp.hpp>
+#endif
 
 SrsMessageHeader::SrsMessageHeader()
 {
@@ -230,9 +232,11 @@ SrsSharedPtrMessage::~SrsSharedPtrMessage()
         }
     }
 
+#ifdef SRS_AUTO_RTC
     for (int i = 0; i < (int)rtp_packets.size(); ++i) {
         srs_freep(rtp_packets[i]);
     }
+#endif
 }
 
 srs_error_t SrsSharedPtrMessage::create(SrsCommonMessage* msg)
@@ -351,17 +355,21 @@ SrsSharedPtrMessage* SrsSharedPtrMessage::copy()
     copy->payload = ptr->payload;
     copy->size = ptr->size;
 
+#ifdef SRS_AUTO_RTC
     for (int i = 0; i < (int)rtp_packets.size(); ++i) {
         copy->rtp_packets.push_back(rtp_packets[i]->copy());
     }
+#endif
 
     return copy;
 }
 
+#ifdef SRS_AUTO_RTC
 void SrsSharedPtrMessage::set_rtp_packets(const std::vector<SrsRtpSharedPacket*>& pkts)
 {
     rtp_packets = pkts;
 }
+#endif
 
 SrsFlvTransmuxer::SrsFlvTransmuxer()
 {
diff --git a/trunk/src/kernel/srs_kernel_flv.hpp b/trunk/src/kernel/srs_kernel_flv.hpp
index ec4545d96..23fa0baf0 100644
--- a/trunk/src/kernel/srs_kernel_flv.hpp
+++ b/trunk/src/kernel/srs_kernel_flv.hpp
@@ -288,7 +288,10 @@ public:
     //       video/audio packet use raw bytes, no video/audio packet.
     char* payload;
 
+#ifdef SRS_AUTO_RTC
     std::vector<SrsRtpSharedPacket*> rtp_packets;
+#endif
+
 private:
     class SrsSharedPtrPayload
     {
@@ -344,7 +347,9 @@ public:
     // @remark, assert object is created.
     virtual SrsSharedPtrMessage* copy();
 public:
+#ifdef SRS_AUTO_RTC
     virtual void set_rtp_packets(const std::vector<SrsRtpSharedPacket*>& pkts);
+#endif
 };
 
 // Transmux RTMP packets to FLV stream.
diff --git a/trunk/src/main/srs_main_server.cpp b/trunk/src/main/srs_main_server.cpp
index 1bec4c0ad..d8415e76f 100644
--- a/trunk/src/main/srs_main_server.cpp
+++ b/trunk/src/main/srs_main_server.cpp
@@ -50,7 +50,9 @@ using namespace std;
 #include <srs_core_autofree.hpp>
 #include <srs_kernel_file.hpp>
 #include <srs_app_hybrid.hpp>
+#ifdef SRS_AUTO_RTC
 #include <srs_app_rtc_conn.hpp>
+#endif
 
 #ifdef SRS_AUTO_SRT
 #include <srt_server.hpp>
@@ -449,7 +451,9 @@ srs_error_t run_hybrid_server()
     _srs_hybrid->register_server(new SrtServerAdapter());
 #endif
 
+#ifdef SRS_AUTO_RTC
     _srs_hybrid->register_server(new RtcServerAdapter());
+#endif
 
     // Do some system initialize.
     if ((err = _srs_hybrid->initialize()) != srs_success) {